JB 5545-1991 Technical conditions for safety protection of casting machinery
Some standard content:
161
JB
Machinery Industry Standard of the People's Republic of China
JB5545-91
Safety Protection of Casting Machinery
Released on 1991-07-09||tt| |Technical Conditions
Implemented on 1992-07-01
Issued by the Ministry of Mechanical and Electronics Industry of the People's Republic of China
Machinery Industry Standards of the People's Republic of China
Technical Conditions for Safety Protection of Casting Machinery| |tt||1 Subject content and scope of application
This standard specifies the safety protection technical conditions that must be followed when the casting machine is designed and manufactured. This standard applies to all types of casting machinery.
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This standard can be used as a basis for supplementing and formulating corresponding safety protection technical requirements for various types of casting machinery (hereinafter referred to as "machine"). 2 Reference standards
GB2893
GB3766
GB 4053.1
GB4053.2
GB4053.3
GB4053.4||tt| |GB4674
GB5083
GB5226
GB6067
GB6222
GB7231
, GBJ 4
TJ36||tt| |ZBJ50014
ZBJ50017
JB1644
JBJ18
3 basic principles
Safety color
General technical conditions for hydraulic systems
Peripheral fixed steel straight ladder
Fixed steel inclined ladderWww.bzxZ.net
Fixed industrial protective railing
Fixed industrial steel platform
Safety regulations for grinding machinery
General principles for safety and hygiene design of production equipment
General technical conditions for machine tools and electrical equipment
Safety regulations for lifting machinery
Gas safety regulations for industrial enterprises
Basic identification colors and Identification symbol Industrial "lando\emission trial standard
Industrial enterprise design hygiene standards
Machine tool packaging technical conditions
Export machine tool packaging technical conditions
General technical conditions for manufacturing machinery
Occupational Safety and Health Design Regulations for the Machinery Industry 3.1 The structure of the machine and its parts and components must have sufficient strength, rigidity and stability. When manufacturing, installing, storing, transporting and using the bearings in accordance with the regulations, they must not be damaged. causing danger to personnel,
3.2 When designing the machine, necessary safety and protective measures must be taken in advance for dangerous parts that may cause street damage. 3.3 The safety and health design of the machine should comply with the relevant regulations of GB5083. 3.4 When powered. Or when the control signal is interrupted, braking, clamping, lifting or lowering and other actions should be ensured to be in a safe state. 3.5 It is possible for sand, projectiles, molten metal or slag to be sprayed, splashed or heated when the machine is working, causing danger. Corresponding safety protection measures and interlocking devices must be taken in the work area. Safety protection devices should not be left to the user. 3.6 The machine should comply with safety and health requirements during its use period. Approved by the Ministry of Machinery and Electronics Industry 1991-07-09. -01Implementation
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3.7 The machine instructions and relevant technical documents should state the safety requirements (including requirements for foundation and tooling) 4. Requirements for safety protection devices||tt. ||4.1 The safety protection device should be able to ensure the safety of people and equipment, and should not limit the performance of the machine or hinder the operation, adjustment and maintenance of the machine
4.2 The safety protection device should be simple in structure, sturdy and durable, and is recommended. The sheet materials and minimum thickness are shown in the table below. Other materials whose mechanical properties are not inferior to those listed are also allowed.
mm
material
steel
material
board
hard plastic board
resistant hoof glass plate
most
small
thick
0.8
2
4
4. 5||tt ||Degree
4.3 In order to reduce the weight or observe the working condition of the mechanism, it is allowed to use perforated plates or mesh materials to make safety protective equipment. The mesh size shall not be larger than g10mm (round hole) or 10mm×10mm (square hole), but it must play a safety protection role. 4.4 When necessary, it is allowed to open observation windows for safety protection devices made of plates (except glass plates), and the material of the observation seat A shatterproof glass plate with a thickness of not less than 4.5mm, or other transparent materials with performance no less than that of it, should be used. The observation window should not damage the sealing and sound insulation effect. The observation window should be installed in a position that is convenient for viewing and not easily blocked by other objects. Where items are damaged. Other forms of safety protection devices that effectively protect operator safety are allowed. 4.5 The installation, connection and fixation of safety protection devices should be reliable and there should be no possibility of opening by themselves. 4.6 Safety protection devices that need to be removed through straps should be easy to disassemble and assemble, and their weight should not exceed 6kg. Safety protection devices above 6kg should be equipped with handles, hooks (rings) and supporting devices when opening or removing to ensure that Safe disassembly, opening and closing transportation, 4.7 When opening the safety protection device may cause injury, the safety protection device should be interlocked with the machine. 4.8 The layout of safety protection devices must ensure a safe distance. 5 Requirements for the operating mechanism
5.1 The manual operating mechanism should be flexible and convenient to use, and have a reliable positioning device. There should be enough space for movement during operation, and no touching or pinching of hands is allowed.
5.2 When using foot controllers or knee controllers, avoid using hand controllers at the same time. The foot controller or knee controller should take insurance measures to prevent the machine from operating due to accidental rain. 5.3 The recommended control force values ??of various controllers should comply with the requirements of Appendix B of GB5083. 5.4 The transfer switch that controls the working mode and operating method should be placed in a locking cabinet. It is recommended to use a key-type transfer switch or a transfer switch with a removable handle. These two transfer switches can be placed outside the cabinet. 5.5 The structure and installation position of the operating mechanism and button board should prevent the accumulation of sand, liquid, etc. from affecting the operation. 5.6 The production line should be started at one operating point, or at other operating points when interlocking devices are used, but each control system should be able to ensure that when an emergency occurs on the entire line or in each institution, it can immediately control the shutdown at each operating position. 5.7 The emergency stop control mechanism shall not resume functions on its own after completing the emergency stop action. 5.8 For automatic lines or single machines with automatic control working modes, the mold should be able to be converted to single-action working modes. The automatic control working modes and single-action working modes must be equipped with interlocking devices, and the production lines or single machines must not be operated in parallel. 5.9 For machines that may be dangerous when operated with one hand (such as when starting the core box to press the sand head of the core shooting machine), or machines that are operated by two or more operators, both hands should be provided for each operator. When operating buttons, the distance between the two buttons should be between 300mm and 600mm, and the pressing time with both hands should last until the hands can no longer enter the work danger zone, 2
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5.10 The two-hand operation button must only be moved once. When starting the machine next time, you must first release your hands to return the button to its original position, and then operate it with both hands again to start the machine. 5.11 For automatic lines and automatic control stand-alone machines, there should be control devices (handles, handwheels, etc.) that can manually move the moving parts in the event of sudden heat outage or failure.
5.12 For simultaneous actions, For hazardous moving parts, their control mechanisms must be interlocked. 5.13 If the work area cannot be fully observed from the operating position and accidental activation of the machine may cause injury, an audible warning signal device must be installed. The start button should automatically sound for no less than 15 seconds. The recommended sound pressure level is 90 ~100dB(A), the frontal band is 125~250Hz sound. When the signal ends, the machine or production line can automatically start working. 5.14 The operating buttons and switches of the machine should be easily identifiable based on their shape, size or color. The installation of multiple operating devices should consider their mutual positions to avoid accidental collision with adjacent operating devices and cause erroneous operations. , if this is possible, a reliable interlocking device (mechanical or electrical) should be installed.
5.15 Before turning on the electric float and air source, the control or signaling device should be in a "static" initial state. It is not allowed for the machine to move as soon as the power supply and air source are turned on,
6 Requirements for moving parts
6.1 Safety protection devices must be installed on moving parts and components that are easily accessible to personnel and may cause injury. If it is impossible to install safety protection devices due to process requirements, the requirements of GB2893 shall be followed. Paint the ends of moving parts and components with yellow and black lines of the same width at a 45° angle, with a line width of 20~50mm
6.2 For motors that are required to rotate in one direction, an arrow in the direction of motion should be marked in an obvious place. 6.3 The eccentric block of the electric actuator should be firmly installed on the shaft and must have a cover. 6.4 High-speed rotating parts and components (such as centrifuge molds, pill collectors, etc.) should undergo necessary static or dynamic balancing. The balance of the grinding wheel components of the grinder should comply with the relevant regulations of GB4674. 6.5 For machines with turning or swinging action, the action area of ??the turning or swinging mechanism should be enclosed. If it cannot be enclosed under special circumstances, the surface of the end of the turning or swinging mechanism should be painted in accordance with the provisions of Article 6.1, and should be equipped with obvious A sign indicating the scope of the organization's actions. 7 Requirements for brake insurance installation
7.1 In the machine, in order to avoid overload, movable parts exceeding the specified limits, excessive air pressure, hydraulic pressure and current values, and other controlled parameters exceeding the allowable value range, it is necessary to Install a safety device and, if necessary, corresponding emergency equipment. When overloading cannot be prevented under special circumstances, a sign indicating the maximum limit (such as the maximum weight of the shot sand core, etc.) must be installed on the machine and placed on the machine. It is explained in the instruction manual,
7.2 When the machine needs to be started and adjusted, if it is possible to cause injury, the machine should be equipped with a reliable safety device. 7.3 Machines or mechanisms that need to specify pressure, temperature, current, etc. must be equipped with indicating instruments that can be clearly seen by the operator. 7.4 Parts that are moved by hand must be equipped with protective measures to prevent falling, and this should be written in the machine instruction manual. 7.5 The rotary table should have a rotary positioner and obvious indication marks. 7.6 Moving parts with covers should have an interlocking device that can stop the movement (such as the head of a sand pulling machine, the throwing head of a shot blasting machine, etc.). Otherwise, a sign indicating the danger of opening the cover or the transmission device must be cut off should be installed. Only then is the instruction sign allowed to open it. 8 Requirements for clamping capacity
8.1 The clamping or mold closing locking device must be equipped with an interlocking device that can ensure that the clamping tooling is completely closed and tightly sealed before the next operation (such as sand injection or injection) can be performed. Control device and ensure that it will not open during work to prevent sandblasting or molten metal from spraying and overflowing. 8.2 The clamping device must be equipped with a device that can ensure the cavity of the clamped tooling (core basin, metal casting, etc.) (including The interlock device or control device shall not be opened when the pressure in the pressure chamber connected to it has not been completely reduced or the process time limit has not been reached. 8.3 When the clamping device suddenly loses power and the pressure of the pneumatic and hydraulic systems drops during the return process. , should be able to be in the clamping state reliably, 3
Otherwise, safety protection devices should be installed
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9 for hydraulic and pneumatic loading, pipelines and pressure vessels. Requirements 9.1. The hydraulic transmission capacity and pneumatic transmission device should comply with the relevant regulations of GB3766 and pneumatic transmission systems. 9.2 The design, manufacture, installation and use of pressure vessels used in the machine must comply with (Interim Regulations on Safety Supervision of Steel Furnace Pressure Vessels). and the requirements stipulated in the "Pressure Vessel Safety Supervision Regulations" 9.3 The rated safe working pressure of all components and parts of the hydraulic and pneumatic pumps shall not be lower than the maximum working pressure of the system. 9.4 All cylinders, hydraulic cylinders, etc. must comply with the requirements. According to relevant standards, pressure resistance test and leakage test should be carried out, and the test certificate or product factory certificate should be provided.
9.5 Pneumatic and hydraulic components should be marked with the direction of medium flow. 9.6 Pneumatic and hydraulic systems should be marked. There are safety valves to prevent overpressure and relief valves to adjust pressure changes. 9.7 The pressure adjustment capacity and pressure insurance capacity in the system must be adjusted to the values ??specified in the instruction manual. A place that is easy to see.
9.8 When a sudden loss of air pressure or hydraulic pressure in the system or interruption of air and liquid supply will cause danger, corresponding safety protection measures should be taken. 9.9 Use the hydraulic pressure of the accumulator (or Air pressure) system should generally be equipped with a device to release and cut off the pressure in the accumulator to ensure safety when disassembling and overhauling the accumulator or system
9.10 The installation and arrangement of pipelines (including electrical pipelines) should be unobtrusive. Affect the work of operators, and should avoid mechanical failure and injury to operators caused by premature cracking. The distance between elevated pipelines and the ground should be no less than 2m. When placing pipelines along the floor, walking paving boards should be laid firmly, and the paving boards should be firmly connected to the ground. The angle between the planes should not be greater than 15°. 9.11. The pipelines on the machine (including pipelines transporting compressed air, steam, water, oil, flammable or corrosive liquids, gases, etc.) should be coated in accordance with the relevant regulations of GB7231. Use identification colors and identification symbols 9.12 The hose must be oil-resistant and must not be aged or hardened. If this happens, it should be replaced immediately. The installation location of the hose must not be close to a heat source or bear mechanical abrasion and mechanical load. The pressure oil pipe should be protected from When a fault occurs, the oil comes into contact with hot metal. When the gas in the 9.13 pneumatic system is discharged, dust, sand, etc. should be avoided from blowing to the operator and workbench, and contaminating the space in the work area within 2m of the ground. Work must not pollute the ground. 9.14 In the hydraulic system, where an air pillow is likely to form, an air release device should be installed, and the air must not overflow the working fluid level and pollute the environment. 10 Requirements for lubrication and water-cooling systems
10.1 Except for the loose movable parts, the lubrication system should be airtight, and the lubrication channel should be unobstructed. Lubricant must not leak or drip outside the equipment. For sensitive movable parts, the lubrication system should ensure that oil does not fly outward. 10.2 The oil filling level plate and lubrication points of the machine should be painted with red marks. 10.3 The cooling system should ensure that the coolant does not drip into the pouring trough or other metal-containing parts. The solution is in the container and inside the gold leak mold cavity. 10.4 Coolants, lubricants and working fluids must not cause contamination or slippage in the operator's working section. There must be no dead corners where coolant accumulates on the machine.
10.5 The water cooling system should be equipped to prevent the pressure in the water pipe from rising. or a manifold or other device having the same function in which steam accumulates. 19.6 Machines that are not allowed to have a power outage during operation, causing the water cooling system to be interrupted, should be equipped with additional auxiliary devices to maintain the normal operation of the water cooling system.
11 Requirements for electrical systems
11.1 The safety requirements of electrical equipment should comply with the relevant regulations of GB5226. 11.2 All cables installed outside the machine (except cables that can be installed in the open air) should be installed in pipes (can be metal pipes, metal sleeves, rubber cloth hoses or profile sleeves, but in cases where mechanical damage may occur Only metal pipes and metal sleeves are allowed to be used in certain parts of the cable duct to prevent the cable duct from being damaged by machinery or invaded by liquid, lime sand and dirt. 4
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11.3 The door of the electrical cabinet must be locked with a special key that can be extracted. The covers on all electrical cabinets are equal and fixed with screws that can be opened without special tools. The electrical cabinet There should be an interlocking device for opening the door and cutting off power. Otherwise, protective measures must be taken for all live parts in the cabinet that are higher than 50V.
1t.4 Each machine or each single machine on the automatic line should have a manual main circuit breaker so that the power supply can be easily cut off during single machine maintenance or equipment inspection.
11.5 Emergency stop of the machine Electrical appliances should comply with the relevant regulations of GB5226. For automatic lines whose length exceeds 10m, in addition to the emergency stop switch owned by each single machine, the line should also be equipped with additional emergency cut-off switches at necessary locations.
11.6 If the machine has several consoles that cannot be managed from one work site, each console should be equipped with a manual emergency stop switch and should be equipped with interlocks to avoid possible parallel control with other consoles. device. 11.7 When the power supply voltage suddenly disappears and then recovers, if the control mechanism automatically switches on, which may injure the operator or damage the machine structure, a protective device should be installed on the electrical equipment to prevent the control mechanism from switching on by itself. 11.8 Machines that are not allowed to have power outages during work should be equipped with a backup power supply. 11.9 Each console and cabinet should have a power supply indicator light and an emergency stop indicator light. 11.10 Metal soft casings and steel pipes for laying wires inside are not allowed to be used as grounding conduits. Bolts, screws or nuts used for connection are not allowed to be used. to connect the ground wire. 11.11 Protective measures must be taken for electric heating elements to avoid injury caused by direct contact with the human body. 12 Requirements for local lighting
·12.1 For machines that temporarily or regularly observe the operation of machine components or inspect product quality, power sockets or lighting lamps for local lighting should be provided.
12.2 Fixed local lighting should be provided in the machine room or protective cover where process observation is required. 12.3 Local lighting should be installed at a position not far away from the lighting working surface, no more than 0.5m away, and controlled by a separate switch. It should be installed safely and easy to clean.
12.4 Portable local lighting shall be powered by a power supply with a voltage of 12V. 12.5 Local lighting with a voltage of 24V and below should be powered by a separated winding transformer. Resistor step-down or self-replacing transformers are not allowed.
One end of the secondary coil of the transformer should be grounded. 12.6Fixed lighting with a voltage of 110V or 220V may be powered by the phase voltage of the four-wire circuit of the equipment power supply. 13 Requirements for working platforms and step devices
13.1 Machines that need to be operated, adjusted, supervised, inspected and repaired at a height above 2m above the ground should be provided with fixed, detachable or foldable steps and platforms Conveying equipment such as production lines and editing lanes should be equipped with pedestrian bridges or passages with railings at the crossing points. 13.2 Where there is a risk of falling, such as steps, platforms, pit edges and lifts, railings or covers must be installed. Ladders with less than 2 steps may not be equipped with railings. 13.3 When the height is less than 1m and the operation is performed with only one hand for no more than 2 minutes , you can use a fixed or foldable platform with a width of 100~500mm, or a single step and pedal with a plane size of not less than 200mm 700mm fixed platform. 13.4 When each working class needs to go up (or down) the platform more than 4 times, a fixed inclined ladder with a width of 700mm should be installed, and its inclination angle with the ground level is 50*~60°
(Bottom) When the number of platforms does not exceed 3 times, and short-term operations can be performed directly from the ladder, the inclination angle of the fixed inclined ladder that should be installed with the ground level is 65*~70°13.5. For ladders with a height of more than 10m, they must be installed at every other A parking platform is set up at a distance of 5m, and protective boards should be added to both sides of it. 13.6 Spiral lifting steps shall not be installed. 13.7 If the height of the operating platform (or general seat) from the ground is less than 2.2m, its side should be painted with 45-angle yellow and black lines of the same width of 5
degrees in accordance with GB2893, with a line width of 20~ 50mm. JB5545—91
13.8 There should be a sign on the working platform indicating the total load and concentrated load allowed by the platform. The load-bearing capacity of the support components of the platform and steps should not be less than 5×10*N/m*|| tt||13.9 Ladders, platforms and protective railings shall comply with the relevant provisions of GB4053.1, GB4053.2, GB4053.3 and GB4053.4. 14 Structural requirements for maintenance
14.1 Parts that require frequent lubrication, cleaning, adjustment and maintenance should be easy to operate. 14.2 The machine structure should ensure that the requirements for safe loading and unloading are met when replacing damaged parts. 14.3 The liquid storage containers, hydraulic cylinders, etc. in the machine's hydraulic system should be able to ensure that all working fluid is drained. 14.4 The installation position of the air filter should be convenient for draining water and dirt. 14.5 When it is necessary to enter the dangerous area for inspection, maintenance and adjustment, an interlocking device to ensure that the equipment is cut off from the power source should be provided. If the original safety protection device loses its function at this time, other safety protection measures must be taken. 14.6 In order to facilitate maintenance, sufficient pit width and depth should be ensured for the part of the machine below the ground, and this should be noted in the machine instruction manual.
15 Structural requirements for loading and transportation
15.1 The assembled machine structure and components should ensure the safety of remote transportation and the reliability of being fixed on the transportation vehicle. The moving parts must have stops. Clear Shi.
15.2 Parts and accessories that weigh more than 16kg and are inconvenient to grab should be equipped with lifting facilities. Parts weighing less than 16kg should be easy to grasp by hand.
15.3 The safety requirements for machine packaging should comply with the relevant regulations of ZBJ50014, ZBJ50017 or JB1644, 16 Environmental and labor hygiene requirements
16.1 Harmful processes and heavy manual labor processes of machines should be mechanized as much as possible, 16.2 Machines that can release harmful substances (dust, smoke, harmful gases, etc.) during operation must be equipped with partial guards to facilitate discharge or reliable connection with the centralized ventilation and absorption system of the workshop. The local ventilation and absorption shields of various types of casting machinery should comply with relevant technical conditions and standards, and the required wind speed, exhaust volume or absorption efficiency and other indicators must be stated in the instruction manual. When the machine is working, the ventilation and absorption devices should be put into operation immediately. An interlocking device should be provided to prevent the machine from working when the ventilation and absorption devices are closed.
It should be ensured that the machine working area complies with the relevant regulations of TJ36 and GBJ4. 16.3 The noise of the machine should comply with the provisions of the corresponding technical documents. The measurement method of noise is specified in relevant standards. 16.4 The vibration in the machine working area should comply with relevant regulations to ensure safe vibration working conditions. 16.5 The impact of mechanical vibration on people and the endurance limit of vibration transmitted to hands should comply with the relevant provisions of JBJ18. 17 Requirements for machines containing flammable, dry, and abrasive substances 17.1 Devices for storing and transporting hazardous substances should be made of barrier materials and must be installed to ensure that they cannot leak. 17.2 Mixing or storage equipment containing flammable materials should be isolated and installed in areas that meet explosion-proof and flame-proof requirements. All motors and electrical appliances used on these equipment should be explosion-proof.
17.3 Corrosive falling liquids The mixing device should be equipped with a closed cover and solution volume indicator to ensure the safety of the supervisor, and have an alarm device in case of emergency.
17.4 For equipment that requires gas heating, its gas facilities should comply with the relevant requirements of GB6222 Safety regulations. When using gas heating equipment, there should be enough space to ensure free circulation of air. 6
Other requirements
18
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The shape and color of the machine should meet the requirements of structural aesthetics. 18.1:
18.2 The operating position of the operator should consider safety, convenience and reducing fatigue during operation. 18.3 All fasteners must be tightened and must not loosen during machine operation. 18.4 Any parts or components on the machine must not loosen or fall off during operation. For parts and components that may become loose during operation, effective safety measures must be taken to prevent loosening and danger caused by starting, braking, reversing, impact, etc. 18.5 The mechanism for grabbing and lifting should comply with the relevant provisions of GB6067. 18.6 The load-bearing capacity of hanging devices and hooks should not be less than 1.2 times the rated teaching weight of the equipment. The technical information provided with the machine should include specific usage requirements for the hanger provided with the machine. For machines that require sampling during operation, safe sampling must be ensured. 18.7
Additional notes:
This standard is proposed by the Casting Machinery Standardization Technical Committee of the Ministry of Mechanical and Electronic Industry. This standard is under the jurisdiction and responsibility of the Jinan Casting and Forging Machinery Research Institute of the Ministry of Mechanical and Electronic Industry. The main drafters of this standard are Gao Tianzhen and Huang Jiuhui.5. When it is necessary to enter the dangerous area for inspection, maintenance and adjustment, an interlocking device to ensure that the power source is cut off should be provided. If the original safety protection device loses its function at this time, other safety protection measures must be taken. 14.6 In order to facilitate maintenance, sufficient pit width and depth should be ensured for the part of the machine below the ground, and this should be noted in the machine instruction manual.
15 Structural requirements for loading and transportation
15.1 The assembled machine structure and components should ensure the safety of remote transportation and the reliability of being fixed on the transportation vehicle. The moving parts must have stops. Clear Shi.
15.2 Parts and accessories that weigh more than 16kg and are inconvenient to grab should be equipped with lifting facilities. Parts weighing less than 16kg should be easy to grasp by hand.
15.3 The safety requirements for machine packaging should comply with the relevant regulations of ZBJ50014, ZBJ50017 or JB1644, 16 Environmental and labor hygiene requirements
16.1 Harmful processes and heavy manual labor processes of machines should be mechanized as much as possible, 16.2 Machines that can release harmful substances (dust, smoke, harmful gases, etc.) during operation must be equipped with partial guards to facilitate discharge or reliable connection with the centralized ventilation and absorption system of the workshop. The local ventilation and absorption shields of various types of casting machinery should comply with relevant technical conditions and standards, and the required wind speed, exhaust volume or absorption efficiency and other indicators must be stated in the instruction manual. When the machine is working, the ventilation and absorption devices should be put into operation immediately. An interlocking device should be provided to prevent the machine from working when the ventilation and absorption devices are closed.
It should be ensured that the machine working area complies with the relevant regulations of TJ36 and GBJ4. 16.3 The noise of the machine should comply with the provisions of the corresponding technical documents. The measurement method of noise is specified in relevant standards. 16.4 The vibration in the machine working area should comply with relevant regulations to ensure safe vibration working conditions. 16.5 The impact of mechanical vibration on people and the endurance limit of vibration transmitted to hands should comply with the relevant provisions of JBJ18. 17 Requirements for machines containing flammable, dry, and abrasive substances 17.1 Devices for storing and transporting hazardous substances should be made of barrier materials and must be installed to ensure that they cannot leak. 17.2 Mixing or storage equipment containing flammable materials should be isolated and installed in areas that meet explosion-proof and flame-proof requirements. All motors and electrical appliances used on these equipment should be explosion-proof.
17.3 Corrosive falling liquids The mixing device should be equipped with a closed cover and solution volume indicator to ensure the safety of the supervisor, and have an alarm device in case of emergency.
17.4 For equipment that requires gas heating, its gas facilities should comply with the relevant requirements of GB6222 Safety regulations. When using gas heating equipment, there should be enough space to ensure free circulation of air. 6
Other requirements
18
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The shape and color of the machine should meet the requirements of structural aesthetics. 18.1:
18.2 The operating position of the operator should consider safety, convenience and reducing fatigue during operation. 18.3 All fasteners must be tightened and must not loosen during machine operation. 18.4 Any parts or components on the machine must not loosen or fall off during operation. For parts and components that may become loose during operation, effective safety measures must be taken to prevent loosening and danger caused by starting, braking, reversing, impact, etc. 18.5 The mechanism for grabbing and lifting should comply with the relevant provisions of GB6067. 18.6 The load-bearing capacity of hanging devices and hooks should not be less than 1.2 times the rated teaching weight of the equipment. The technical information provided with the machine should include specific usage requirements for the hanger provided with the machine. For machines that require sampling during operation, safe sampling must be ensured. 18.7
Additional notes:
This standard is proposed by the Casting Machinery Standardization Technical Committee of the Ministry of Mechanical and Electronic Industry. This standard is under the jurisdiction and responsibility of the Jinan Casting and Forging Machinery Research Institute of the Ministry of Mechanical and Electronic Industry. The main drafters of this standard are Gao Tianzhen and Huang Jiuhui.5. When it is necessary to enter the dangerous area for inspection, maintenance and adjustment, an interlocking device to ensure that the power source is cut off should be provided. If the original safety protection device loses its function at this time, other safety protection measures must be taken. 14.6 In order to facilitate maintenance, sufficient pit width and depth should be ensured for the part of the machine below the ground, and this should be noted in the machine instruction manual.
15 Structural requirements for loading and transportation
15.1 The assembled machine structure and components should ensure the safety of remote transportation and the reliability of being fixed on the transportation vehicle. The moving parts must have stops. Clear Shi.
15.2 Parts and accessories that weigh more than 16kg and are inconvenient to grab should be equipped with lifting facilities. Parts weighing less than 16kg should be easy to grasp by hand.
15.3 The safety requirements for machine packaging should comply with the relevant regulations of ZBJ50014, ZBJ50017 or JB1644, 16 Environmental and labor hygiene requirements
16.1 Harmful processes and heavy manual labor processes of machines should be mechanized as much as possible, 16.2 Machines that can release harmful substances (dust, smoke, harmful gases, etc.) during operation must be equipped with partial guards to facilitate discharge or reliable connection with the centralized ventilation and absorption system of the workshop. The local ventilation and absorption shields of various types of casting machinery should comply with relevant technical conditions and standards, and the required wind speed, exhaust volume or absorption efficiency and other indicators must be stated in the instruction manual. When the machine is working, the ventilation and absorption devices should be put into operation immediately. An interlocking device should be provided to prevent the machine from working when the ventilation and absorption devices are closed.
It should be ensured that the machine working area complies with the relevant regulations of TJ36 and GBJ4. 16.3 The noise of the machine should comply with the provisions of the corresponding technical documents. The measurement method of noise is specified in relevant standards. 16.4 The vibration in the machine working area should comply with relevant regulations to ensure safe vibration working conditions. 16.5 The impact of mechanical vibration on people and the endurance limit of vibration transmitted to hands should comply with the relevant provisions of JBJ18. 17 Requirements for machines containing flammable, dry, and abrasive substances 17.1 Devices for storing and transporting hazardous substances should be made of barrier materials and must be installed to ensure that they cannot leak. 17.2 Mixing or storage equipment containing flammable materials should be isolated and installed in areas that meet explosion-proof and flame-proof requirements. All motors and electrical appliances used on these equipment should be explosion-proof.
17.3 Corrosive falling liquids The mixing device should be equipped with a closed cover and solution volume indicator to ensure the safety of the supervisor, and have an alarm device in case of emergency.
17.4 For equipment that requires gas heating, its gas facilities should comply with the relevant requirements of GB6222 Safety regulations. When using gas heating equipment, there should be enough space to ensure free circulation of air. 6
Other requirements
18
JB5545-31
The shape and color of the machine should meet the requirements of structural aesthetics. 18.1:
18.2 The operating position of the operator should consider safety, convenience and reducing fatigue during operation. 18.3 All fasteners must be tightened and must not loosen during machine operation. 18.4 Any parts or components on the machine must not loosen or fall off during operation. For parts and components that may become loose during operation, effective safety measures must be taken to prevent loosening and danger caused by starting, braking, reversing, impact, etc. 18.5 The mechanism for grabbing and lifting should comply with the relevant provisions of GB6067. 18.6 The load-bearing capacity of hanging devices and hooks should not be less than 1.2 times the rated teaching weight of the equipment. The technical information provided with the machine should include specific usage requirements for the hanger provided with the machine. For machines that require sampling during operation, safe sampling must be ensured. 18.7
Additional notes:
This standard is proposed by the Casting Machinery Standardization Technical Committee of the Ministry of Mechanical and Electronic Industry. This standard is under the jurisdiction and responsibility of the Jinan Casting and Forging Machinery Research Institute of the Ministry of Mechanical and Electronic Industry. The main drafters of this standard are Gao Tianzhen and Huang Jiuhui.
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