Full-automatic injection molding production line for safety helmet

Abstract

The present application relates to the technical field of safety helmet production, and discloses a full-automatic injection molding production line for safety helmets, which comprises an injection molding machine, an automatic material taking mechanism and a material conveying mechanism. The automatic material taking mechanism comprises a cross beam frame suspended above the injection molding machine, a first movable device movably arranged on the cross beam frame, a suspension beam arm fixed on the first movable device and perpendicular to the cross beam frame, a second movable device movably arranged on the suspension beam wall, and a lifting device installed on the second movable device. A material taking device is arranged at the lower end of the lifting device. The material taking device comprises a transmission chain installed on the lifting assembly, a waste material clamping assembly and a finished product suction assembly fixed on the transmission chain, and a driving assembly for driving the transmission chain. The waste material clamping assembly and the finished product suction assembly are respectively arranged on the two sides opposite to the transmission direction of the transmission chain. The present application has the following advantages and effects: the material taking state can be switched, and the finished product and the waste material in the injection molding machine can be taken out simultaneously.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of safety helmet production, in particular to a full-automatic injection molding production line for safety helmets. BACKGROUND

[0002] An injection molding machine is a main molding equipment for producing plastic products. It can heat plastic, apply high pressure to molten plastic, make it fill the mold cavity, and thus achieve the effect of quickly producing molded plastic products. During the production process of the injection molding machine, not only finished products are formed in the injection molding mold, but also waste is formed on the sprue gate of the injection molding mold. Therefore, after the finished products are taken out, the waste also needs to be taken out and broken for recycling.

[0003] At present, an automatic material taking device for an injection molding machine has been developed in the prior art. The device can directly take out finished products in the injection molding machine through a mechanical hand that can move horizontally and vertically, and simultaneously use a gripper or a suction cup to take out the finished products. However, the positions of the waste and the finished products in the injection molding machine are different, and the size of the taking-out space is different. After the waste is taken out, it needs to be placed separately. Therefore, the waste needs to be discharged by an additional mechanical hand. Although the finished products and the waste can be quickly taken out, the simultaneous work of the two mechanical hands not only leads to high energy consumption of the equipment operation, but also results in high cost of maintaining and repairing the two mechanical hands. SUMMARY

[0004] The purpose of the present application is to provide a full-automatic injection molding production line for safety helmets, which can switch the taking material state and simultaneously take out the finished products and the waste in the injection molding machine.

[0005] The above technical purpose of the present application is achieved by the following technical scheme: a full-automatic injection molding production line for safety helmets, comprising an injection molding machine, an automatic material taking mechanism, and a material conveying mechanism. The automatic material taking mechanism comprises a cross beam frame suspended above the injection molding machine, a first moving device movably arranged on the cross beam frame, a suspension beam arm fixed on the first moving device and perpendicular to the cross beam frame, a second moving device movably arranged on the suspension beam wall, and a lifting device installed on the second moving device. A material taking device is arranged at the lower end of the lifting device. The material taking device comprises a transmission chain installed on the lifting assembly, a waste clamping assembly and a finished product suction assembly fixed on the transmission chain, and a driving assembly for driving the transmission chain. The waste clamping assembly and the finished product suction assembly are respectively located on the two sides opposite to the transmission direction of the transmission chain.

[0006] By adopting the technical scheme, when the safety helmet is injection molded in the injection molding machine, the moving device one and the moving device two in the automatic material taking mechanism move on the beam frame and the cantilever beam respectively, so that the lifting device is just above the demolding and discharging position of the injection molding machine, at this time, the lifting device lowers the material taking device, and at the same time of lowering, the driving assembly drives the transmission chain in the material taking device, so that the finished product suction assembly moves below the transmission chain, and the waste material clamping assembly moves above the transmission chain, thereby avoiding the influence of the waste material clamping assembly on the work of the finished product suction assembly, and when the lifting device lowers the finished product suction assembly to a proper height, the safety helmet hanging on the injection mold wall can be automatically sucked.

[0007] When the safety helmet taking is finished, the lifting device lifts the material taking device, so that the transmission chain and the finished product suction assembly exit the demolding and discharging position of the injection molding machine, then the moving device two and the moving device one move on the beam frame and the cantilever beam respectively, when the lifting device is just above the waste material taking position of the injection molding machine, the material taking device is lowered, and at the same time of lowering, the transmission chain drives the waste material clamping assembly to move downward, and the finished product suction assembly and the safety helmet move above the transmission chain, thereby avoiding the influence of the finished product suction assembly and the safety helmet on the work of the waste material clamping assembly, until the lifting device and the waste material clamping assembly are lowered to a proper height, the waste material clamping assembly automatically clamps the waste material, then the lifting device lifts the material taking device, so that the waste material can be taken out of the injection molding machine, finally, the moving device one and the moving device two move on the beam frame and the cantilever beam respectively again, the safety helmet on the finished product suction assembly and the waste material on the waste material clamping assembly are taken out and placed on the material conveying mechanism outside the injection molding machine at the same time.

[0008] The further arrangement of the application is that the transmission chain comprises a pair of chain wheels and a chain sleeved on the chain wheels, a pair of parallel support plates are fixedly arranged on the lifting device, the chain wheels are rotatably connected between the support plates, and the two chain wheels are respectively located at the two ends of the support plates, the chain extends out of the support plates and is located on the two sides of the support plates, the waste material clamping assembly and the finished product suction assembly are respectively slidably connected to the support plates on the two sides of the chain wheels, and the chains on the two sides of the support plates are respectively fixedly connected to the waste material clamping assembly and the finished product suction assembly.

[0009] By adopting the technical scheme, the waste material clamping assembly and the finished product suction assembly can move stably and safely on the support plates under the transmission of the chain, and the waste material clamping assembly and the finished product suction assembly can also move on the back surfaces thereof respectively, thereby ensuring that the work of the two does not affect each other.

[0010] The further arrangement of the present application is that the waste clamping assembly comprises a sliding plate I connected to the support plate, a pair of gears I connected to the sliding plate I and meshing with each other, clamping plates fixed on the two gears I respectively, a rack I fixed on the end of the support plate away from the lifting device I, a pinion meshing with the gear I and the rack I rotatably connected to the sliding plate I, the chain fixed on one side of the sliding plate I, a spring seat fixed between the clamping plates of the sliding plate I, sliding blocks slidably connected to the two sides of the spring seat, the sliding blocks sliding between the clamping plates and the spring seat, and springs fixed between the spring seat and the sliding blocks, and the sliding blocks abutting against one side of the clamping plates.

[0011] By adopting the above technical scheme, when the waste clamping assembly works under the driving of the transmission chain, the sliding plate I will slide to the lower end of the support plate, and the pinion rotatably connected to the sliding plate I will meet the rack I at the lower end of the support plate when following the sliding plate I to move, and mesh with the rack I to rotate, and because the pinion meshes with the gears I and II, the clamping plates on the gears I and II will rotate towards each other until the clamping plate I and the clamping plate II clamp the waste when the sliding plate I slides to the bottom end of the support plate, then the lifting device will lift the waste and the waste clamping assembly, and then the moving device I and the moving device II will transfer the waste to above the material conveying mechanism, and finally the transmission chain is started again to lift the sliding plate I by a certain height, and the clamping plates will be opened under the driving of the gear I to unload the waste onto the material conveying mechanism. The spring seat, the spring and the sliding block on the sliding plate I can maintain the opening state of the clamping plates when the pinion does not mesh with the rack I, so that the gear I rotates at the initial angle when the pinion meshes to drive, so as to ensure that the clamping plates clamp the waste safely and stably.

[0012] The further arrangement of the present application is that the sliding blocks are rotatably connected with rollers, and the rollers contact the clamping plates.

[0013] By adopting the above technical scheme, the friction between the sliding blocks and the clamping plates can be reduced, and the wear of the clamping plates can be reduced.

[0014] The further arrangement of the present application is that the clamping surface of the clamping plate is fixed with an anti-skid rubber pad, and an arc groove is formed in the anti-skid rubber pad.

[0015] By adopting the above technical scheme, the friction between the clamping plates and the waste can be improved, so as to ensure that the clamping plates can clamp the waste stably and take out the waste safely.

[0016] The further arrangement of the application is that the finished product suction assembly comprises a sliding plate II connected to the support plate, a rotating plate hinged to one end of the sliding plate II, a plurality of vacuum suction cups installed on the rotating plate, a worm wheel fixed to one side of the rotating plate and located at the rotating center of the rotating plate, a gear II rotatably connected to the sliding plate II, a worm fixed to the gear II and engaged with the worm wheel, a rack II engaged with the gear II is fixed to one end of the support plate close to the lifting device, one side of the sliding plate II is fixedly connected with the chain, and the rotating plate is hinged to one end of the sliding plate II close to the injection molding machine.

[0017] By adopting the above technical scheme, when the finished product suction assembly is lifted by the transmission chain, the sliding plate II will slide to the upper end of the support plate, and the gear II rotatably connected to the sliding plate I will meet the rack II at the upper end of the support plate when following the movement thereof, and will be engaged with the rack II to produce rotation. Because the worm fixed to the gear II is engaged with the worm wheel, the rotating plate hinged to and closely attached to the sliding plate II will be flipped downward, thereby adjusting the safety cap sucked by the vacuum suction cup to a flat angle. When the waste clamping assembly at the lower end of the transmission chain completes the work and moves out, the safety cap can be quickly unloaded onto the material conveying mechanism at the flat angle, and the safety cap is uniformly conveyed away in a flat posture, facilitating subsequent collection and processing.

[0018] The further arrangement of the application is that the driving assembly comprises a servo motor fixed to the lifting device, a worm and gear reducer installed on the output end of the servo motor, and a rotating shaft fixed to the output end of the worm and gear reducer. The rotating shaft penetrates and is rotatably connected to the support plate, and the sprocket is fixedly installed on the rotating shaft.

[0019] By adopting the above technical scheme, the rotation speed of the servo motor can be reduced and the torque thereof can be improved to ensure stable transmission of the transmission chain. When stationary, the worm and gear reducer is self-locked to ensure stable work of the waste clamping assembly and the finished product suction assembly.

[0020] The further arrangement of the application is that the material conveying mechanism comprises a finished product conveying belt and a waste conveying belt. The finished product conveying belt and the waste conveying belt are arranged side by side on one side of the injection molding machine, and the finished product conveying belt is higher than the waste conveying belt. The ends of the finished product conveying belt and the waste conveying belt are respectively provided with collection frames.

[0021] By adopting the above technical scheme, the finished product safety cap and the waste can be classified and collected, and the different height positions of the finished product safety cap and the waste in the material taking device can be matched, so that the safety cap and the waste can be safely received, to avoid the safety cap and the waste falling from a high place and damaging the safety cap or damaging the finished product conveying belt and the waste conveying belt.

[0022] The beneficial effects of the application are:

[0023] 1. Through the connecting structure of the transmission chain, the finished product suction assembly and the waste material clamping assembly, different taking-out environments and taking-out materials can be switched to the corresponding taking-out structure, thereby achieving the effect of taking out the finished product and the waste material together, and without affecting the taking-out state of each other, and at the same time, the finished product and the waste material are quickly conveyed into the corresponding collection frame by cooperating with the waste material conveying belt and the finished product conveying belt, so as to achieve the effect of classified collection, thereby reducing the energy consumption of multiple equipment operation, and also ensuring the taking material efficiency of the automatic taking material mechanism.

[0024] 2. Through the transmission structure of gear two, rack two and worm in the finished product suction assembly, the transmission power of the transmission chain moving the finished product suction assembly can be fully utilized to convert into the overturning force of the turning plate in the finished product suction assembly, thereby facilitating the unloading of the vacuum suction cup, and also saving the driving equipment required for overturning the turning plate, and reducing the energy consumption of the finished product suction assembly work.

[0025] 3. Through the transmission structure of gear one, rack one and pinion in the waste material clamping assembly, the transmission power of the transmission chain moving the waste material clamping assembly can be fully utilized to convert into the clamping force of the clamping plate in the waste material clamping assembly, thereby achieving the effect of clamping the waste material, and also saving the driving equipment required for driving the clamping plate to clamp, and reducing the energy consumption of the waste material clamping assembly work. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0027] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0028] Figure 2 is a schematic diagram of the taking material device structure of the present application;

[0029] Figure 3 is a schematic diagram of the waste material clamping assembly structure of the present application;

[0030] Figure 4 is a schematic diagram of the finished product suction assembly structure of the present application;

[0031] Figure 5 is Figure 3 the enlarged view of A in

[0032] In the figure, 1, injection molding machine; 2, automatic material taking mechanism; 21, cross beam frame; 22, moving device one; 23, cantilever arm; 24, moving device two; 25, lifting device; 251, support plate; 251a, rack one; 251b, rack two; 3, material taking device; 31, transmission chain; 311, chain wheel; 312, chain; 32, waste material clamping assembly; 321, sliding plate one; 322, gear one; 323, pinion; 324, clamping plate; 324a, anti-skid rubber pad; 325, spring seat; 326, sliding block; 326a, roller; 327, spring; 33, finished product suction assembly; 331, sliding plate two; 332, rotating plate; 333, vacuum chuck; 334, worm wheel; 335, gear two; 336, worm; 34, driving assembly; 341, servo motor; 342, worm gear reducer; 343, rotating shaft; 4, material conveying mechanism; 41, finished product conveying belt; 42, waste material conveying belt; 5, collection frame. DETAILED DESCRIPTION

[0033] The technical solutions of the present application will be described clearly and completely below in combination with specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] Embodiment: A full-automatic injection molding production line for safety helmet, as shown in the figure. Figures 1-5As shown, including injection molding machine 1, automatic material taking mechanism 2, material conveying mechanism 4, automatic material taking mechanism 2 includes beam frame 21 suspended above injection molding machine 1, movable device one 22 movably arranged on beam frame 21, suspension beam arm 23 fixed on movable device one 22 and perpendicular to beam frame 21, movable device two 24 movably arranged on suspension beam wall, lifting device 25 installed on movable device two 24, the lower end of lifting device 25 is provided with material taking device 3, material taking device 3 includes transmission chain 31 installed on lifting assembly, waste material clamping assembly 32 and finished product suction assembly 33 fixed on transmission chain 31, driving assembly 34 driving transmission chain 31, waste material clamping assembly 32 and finished product suction assembly 33 are respectively located on the two sides opposite to the transmission direction of transmission chain 31, when the safety helmet is injection molded in injection molding machine 1, movable device one 22 and movable device two 24 in automatic material taking mechanism 2 will move on beam frame 21 and suspension beam arm 23 respectively, so that lifting device 25 is just above the demolding and discharging position of injection molding machine 1, at this time, lifting device 25 will lower material taking device 3, at the same time of lowering, driving assembly 34 will drive transmission chain 31 in material taking device 3, so that finished product suction assembly 33 moves to the lower side of transmission chain 31, and waste material clamping assembly 32 moves to the upper side of transmission chain 31, thereby avoiding the influence of waste material clamping assembly 32 on the work of finished product suction assembly 33, when lifting device 25 lowers finished product suction assembly 33 to the appropriate height, it can automatically suck the safety helmet hanging on the injection molding die wall, then movable device two 24 slightly moves on suspension beam arm, so that the safety helmet can be taken out.

[0035] When the safety helmet taking out is finished, lifting device 25 will lift material taking device 3, so that transmission chain 31 and finished product suction assembly 33 exit the demolding and discharging position of injection molding machine 1, then movable device two 24 and movable device one 22 will move on beam frame 21 and suspension beam wall respectively, when lifting device 25 is just above the waste material taking out position of injection molding machine 1, it will lower material taking device 3, at the same time of lowering, transmission chain 31 will drive waste material clamping assembly 32 to move downward, and finished product suction assembly 33 and safety helmet move to the upper side of transmission chain 31, thereby avoiding the influence of finished product suction assembly 33 and safety helmet on the work of waste material clamping assembly 32, until lifting device 25 and waste material clamping assembly 32 lower to the appropriate height, waste material clamping assembly 32 will automatically clamp the waste material, then lifting device 25 lifts material taking device 3, so that the waste material can be taken out of injection molding machine 1, finally, movable device one 22 and movable device two 24 move on beam frame 21 and suspension beam arm 23 respectively again, take the safety helmet on finished product suction assembly 33 and the waste material on waste material clamping assembly 32 out, and place them on material conveying mechanism 4 outside injection molding machine 1 at the same time.

[0036] As Figure 2As shown, the transmission chain 31 comprises a pair of sprockets 311, a chain 312 sleeved on the sprockets 311, a pair of parallel support plates 251 fixed on the lifting device 25, the sprockets 311 are rotatably connected between the support plates 251, and the two sprockets 311 are respectively located at both ends of the support plates 251, the chain 312 extends out of the support plates 251 and is located at both sides of the support plates 251, the waste clamping assembly 32 and the finished product suction assembly 33 are respectively slidably connected to the support plates 251 on both sides of the sprockets 311, and the chains 312 on both sides of the support plates 251 are respectively fixedly connected to the waste clamping assembly 32 and the finished product suction assembly 33, so that the waste clamping assembly 32 and the finished product suction assembly 33 can move stably and safely on the support plates 251 under the transmission of the chains 312, and the waste clamping assembly 32 and the finished product suction assembly 33 can also move on the back surfaces thereof respectively, thereby ensuring that the work of the two does not affect each other.

[0037] As Figure 3 , Figure 5As shown, the waste clamping assembly 32 comprises a sliding plate 321 connected to a support plate 251, a pair of gears 322 connected to the sliding plate 321 and meshing with each other, clamping plates 324 fixed to the two gears 322 respectively, a rack 251a fixed to the end of the support plate 251 away from the lifting device 25, a pinion 323 rotatably connected to the sliding plate 321 and meshing with the gear 322 and the rack 251a, a chain 312 fixed to one side of the sliding plate 321, a spring seat 325 fixed between the clamping plates 324 of the sliding plate 321, sliding blocks 326 slidingly connected to the two sides of the spring seat 325, the sliding blocks 326 sliding between the clamping plates 324 and the spring seat 325, and springs 327 fixed between the spring seat 325 and the sliding blocks 326, and the sliding blocks 326 abutting against one side of the clamping plates 324. When the transmission chain 31 lowers the waste clamping assembly 32 to work, the sliding plate 321 will slide to the lower end of the support plate 251, and the pinion 323 rotatably connected to the sliding plate 321 will meet the rack 251a at the lower end of the support plate 251 when following the movement of the sliding plate 321, and mesh with the rack 251a to rotate. Because the pinion 323 and the gears 322 and 335 mesh with each other, the clamping plates 324 on the gears 322 and 335 will rotate towards each other until the sliding plate 321 slides to the bottom end of the support plate 251, and the clamping plates 324 and 3242 will clamp the waste tightly. Then the lifting device 25 will lift the waste and the waste clamping assembly 32 together, and then the moving device 22 and the moving device 24 will transfer the waste to above the material conveying mechanism 4. Finally, the transmission chain 31 is started again to lift the sliding plate 321 to a certain height, and the clamping plates 324 will be opened under the transmission of the gear 322 to unload the waste onto the material conveying mechanism 4. The spring seat 325, the springs 327 and the sliding blocks 326 on the sliding plate 321 can maintain the opening state of the clamping plates 324 when the pinion 323 does not mesh with the rack 251a, so that the gear 322 rotates at the initial angle when the pinion 323 meshes with the rack 251a, to ensure that the clamping plates 324 clamp the waste safely and stably.

[0038] As shown in Figure 5 The sliding blocks 326 are rotatably connected with rollers 326a, which are in contact with the clamping plates 324 to reduce the friction between the sliding blocks 326 and the clamping plates 324 and reduce the wear of the clamping plates 324. Anti-skid rubber pads 324a are fixed to the clamping surfaces of the clamping plates 324, and arc grooves are formed in the anti-skid rubber pads 324a to increase the friction between the clamping plates 324 and the waste, so that the clamping plates 324 can clamp the waste stably and safely.

[0039] As shown in Figure 4As shown, the finished product suction assembly 33 includes a sliding plate two 331 slidingly connected to the support plate 251, a rotating plate 332 hingedly connected to one end of the sliding plate two 331, a plurality of vacuum cups 333 mounted on the rotating plate 332, a worm wheel 334 fixed to one side of the rotating plate 332 and located at the center of rotation thereof, a gear two 335 rotatably connected to the sliding plate two 331, a worm shaft 336 fixed to the gear two 335 and engaged with the worm wheel 334, a rack two 251b engaged with the gear two 335 fixed to one end of the support plate 251 close to the lifting device 25, one side of the sliding plate two 331 fixedly connected to the chain 312, the rotating plate 332 hingedly connected to one end of the sliding plate two 331 close to the injection molding machine 1, and the vacuum cups 333 located on the side of the rotating plate 332 away from the sliding plate. When the finished product suction assembly 33 completes the work and is lifted by the transmission chain 31, the sliding plate two 331 will slide to the upper end of the support plate, and the gear two 335 rotatably connected to the sliding plate one 321 will meet the rack two 251b at the upper end of the support plate 251 when it moves, and will be engaged with it to produce rotation. Because the worm shaft 336 fixed to the gear two 335 is engaged with the worm wheel 334, the rotating plate 332 hingedly connected to the sliding plate two 331 will be flipped down, thereby adjusting the safety cap sucked by the vacuum cups 333 to a flat angle. When the waste clamping assembly 32 at the lower end of the transmission chain 31 completes the work and moves out, the safety cap can be quickly unloaded onto the material conveying mechanism 4 at a flat angle, and the safety cap is uniformly conveyed away in a flat posture, facilitating subsequent collection and processing.

[0040] As shown in Figure 2 The driving assembly 34 includes a servo motor 341 fixed to the lifting device 25, a worm gear reducer 342 mounted on the output end of the servo motor 341, and a rotating shaft 343 fixed to the output end of the worm gear reducer 342. The rotating shaft 343 passes through and is rotatably connected to the support plate 251. The sprocket 311 is fixedly installed on the rotating shaft 343. The transmission chain 31 is driven by the worm gear reducer 342. Not only can the rotational speed of the servo motor 341 be reduced and the torque be increased to ensure stable transmission of the transmission chain 31, but also can be self-locked and fixed when stationary to ensure stable work of the waste clamping assembly 32 and the finished product suction assembly 33.

[0041] As shown in Figure 1As shown, the material conveying mechanism 4 includes a finished product conveying belt 41 and a waste conveying belt 42, which are arranged side by side on one side of the injection molding machine 1, and the finished product conveying belt 41 is higher than the waste conveying belt 42, and the ends of the finished product conveying belt 41 and the waste conveying belt 42 are respectively provided with a collecting frame 5. Through the finished product conveying belt 41 and the waste conveying belt 42, not only the safety helmet finished products and waste can be classified and collected, but also the different height positions of the safety helmet finished products and waste in the material taking device 3 can be matched, so that the safety helmet and waste can be safely received, so as to avoid the safety helmet and waste falling from a high place, breaking the safety helmet or damaging the finished product conveying belt 41 and the waste conveying belt 42.

Claims

1. A full-automatic injection molding production line for safety helmets, comprising an injection molding machine (1), an automatic material taking mechanism (2), and a material conveying mechanism (4), wherein the automatic material taking mechanism (2) comprises a cross beam frame (21) suspended above the injection molding machine (1), a moving device I (22) movably arranged on the cross beam frame (21), a suspension beam arm (23) fixed on the moving device I (22) and perpendicular to the cross beam frame (21), a moving device II (24) movably arranged on the suspension beam arm (23), and a lifting device (25) installed on the moving device II (24), characterized in that, The lower end of the lifting device (25) is provided with a material taking device (3), which comprises a transmission chain (31) mounted on the lifting assembly, a waste clamping assembly (32) and a finished product suction assembly (33) fixed on the transmission chain (31), and a driving assembly (34) driving the transmission of the transmission chain (31), the waste clamping assembly (32) and the finished product suction assembly (33) are respectively located on the two sides of the transmission direction of the transmission chain (31); The transmission chain (31) comprises a pair of chain wheels (311) and a chain (312) sleeved on the chain wheels (311), a pair of parallel support plates (251) are fixedly arranged on the lifting device (25), the chain wheels (311) are rotatably connected between the support plates (251), and the two chain wheels (311) are respectively located at the two ends of the support plates (251), the chain (312) extends out of the support plates (251) and is located on the two sides of the support plates (251), the waste clamping assembly (32) and the finished product suction assembly (33) are respectively slidably connected to the support plates (251) on the two sides of the chain wheels (311), and the chains (312) on the two sides of the support plates (251) are respectively fixedly connected with the waste clamping assembly (32) and the finished product suction assembly (33); The waste clamping assembly (32) comprises a sliding plate one (321) slidably connected to the support plate (251), a pair of gears one (322) rotatably connected to the sliding plate one (321) and three gears one (322) meshing with each other, and a clamping plate (324) fixedly connected to the two gears one (322), respectively, a rack one (251a) is fixedly arranged at one end of the support plate (251) away from the lifting device (25), a pinion (323) meshing with the gear one (322) and the rack one (251a) is rotatably connected to the sliding plate one (321), one side of the sliding plate one (321) is fixedly connected with the chain (312), a spring (327) seat (325) is fixedly arranged between the clamping plates (324) on the sliding plate one (321), sliding blocks (326) are slidably connected on the two sides of the spring (327) seat (325), the sliding blocks (326) slide between the clamping plates (324) and the spring (327) seat (325), springs (327) are fixedly connected between the spring (327) seat (325) and the sliding blocks (326), and the sliding blocks (326) abut against one side of the clamping plates (324); The finished product suction assembly (33) comprises a sliding plate two (331) slidably connected on the support plate (251), a rotating plate (332) hingedly connected on one end of the sliding plate two (331), a plurality of vacuum cups (333) mounted on the rotating plate (332), a worm wheel (334) fixed on one side of the rotating plate (332) and located at the rotating center thereof, a gear two (335) rotatably connected on the sliding plate two (331), a worm (336) fixed on the gear two (335) and engaged with the worm wheel (334), the support plate (251) is fixedly provided with a rack two (251b) engaged with the gear two (335) near one end of the lifting device (25), one side of the sliding plate two (331) is fixedly connected with the chain (312), the rotating plate (332) is hingedly connected on one end of the sliding plate two (331) close to the injection molding machine (1), and the vacuum cups (333) are located on the side of the rotating plate (332) away from the sliding plate.

2. The full-automatic injection molding production line for safety helmets according to claim 1, characterized in that: The sliding block (326) is rotatably connected with a roller (326a), and the roller (326a) is in contact with the clamping plate (324).

3. The full-automatic injection molding production line for safety helmets according to claim 1, characterized in that: The clamping surface of the clamping plate (324) is fixedly provided with an antiskid rubber pad (324a), and an arc groove is formed in the antiskid rubber pad (324a).

4. The full-automatic injection molding production line for safety helmets according to claim 1, characterized in that: The driving assembly (34) comprises a servo motor (341) fixed on the lifting device (25), a worm and gear reducer (342) mounted on the output end of the servo motor (341), and a rotating shaft (343) fixed on the output end of the worm and gear reducer (342), wherein the rotating shaft (343) penetrates through and is rotatably connected with the support plate (251), and the sprocket (311) is fixedly mounted on the rotating shaft (343).

5. The full-automatic injection molding production line for safety helmets according to claim 1, characterized in that: The material conveying mechanism (4) comprises a finished product conveying belt (41) and a waste conveying belt (42), the finished product conveying belt (41) and the waste conveying belt (42) are arranged side by side on one side of the injection molding machine (1), the finished product conveying belt (41) is higher than the waste conveying belt (42), and the ends of the finished product conveying belt (41) and the waste conveying belt (42) are respectively provided with collecting frames (5).

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