A material taking device for reducing adsorption deformation of automobile bumper injection molding

Abstract

The application relates to the technical field of automobile accessory processing, and discloses a material taking device for automobile bumper injection molding capable of reducing adsorption deformation, which comprises a frame body, an adsorption assembly for taking materials of workpieces is arranged on the inner side of the frame body, and a dust setting mechanism for cooling and initial dust setting of the workpieces and the adsorption assembly is arranged on the inner side of the frame body, the dust setting mechanism is connected with a propelling mechanism fixed to the frame body, and a gas supply mechanism for providing gas sources for the adsorption assembly and the dust setting mechanism is arranged on one side of the propelling mechanism. The application avoids deformation of the automobile bumper due to excessively high temperature during material taking, improves the processing quality and stability of the automobile bumper, improves adsorption adhesion, reduces the risk of falling due to unfirm adsorption, can automatically adjust the adsorption adhesion contact surface according to the surface curvature of the automobile bumper, simultaneously buffers negative pressure by using an air bag in the adsorption process, avoids deformation of the automobile bumper caused by excessively large negative pressure, and improves the stability and safety of adsorption material taking.

Description

Technical Field

[0001] This invention relates to the field of automotive parts processing technology, and in particular to a material handling device for injection molding of automotive bumpers that reduces adsorption deformation. Background Technology

[0002] Currently, car bumpers are manufactured using plastic injection molding. After injection molding, the bumpers need to be removed. During the injection molding process, the plastic is melted and injected into the mold. After molding, the bumpers are ejected. At this time, the workpiece is at a relatively high temperature, typically between 90℃ and 120℃. If the ejection temperature is too low, the mold will take too long to cool down, affecting processing efficiency. If the ejection temperature is too high, the workpiece will not have cooled to the material's softening point, making it prone to crumbling during removal and affecting the quality of the workpiece.

[0003] The automatic material handling mechanism for processing automotive injection molded parts disclosed in CN117841303A utilizes a cleaning and air-cooling mechanism to clean the bottom of the suction cup and the area to be adsorbed by the lamp cover, ensuring that the suction cup can make close contact with the lamp cover. In addition, the suction cup can also cool down the area to be adsorbed by the suction cup, which not only extends the service life of the suction cup, but also accelerates the curing speed of the lamp cover.

[0004] The application document uses air blowing to cool the workpiece and the suction cup. However, the suction and cooling air blowing are provided by the same air path. Switching between air blowing and suction is inconvenient and affects the part picking efficiency. At the same time, the cooling area is limited and the cooling rate is low when air is vented from the suction cup. Therefore, a material picking device for injection molding of automobile bumpers with reduced adsorption deformation is proposed. Summary of the Invention

[0005] To address the technical problems existing in the prior art, the present invention provides a material handling device for injection molding of automobile bumpers that reduces adsorption deformation.

[0006] The present invention is achieved by the following technical solution: a material handling device for injection molding of car bumpers that reduces adsorption deformation, comprising a frame, wherein an adsorption component for picking up workpieces and a dust removal mechanism for cooling and dust removal of workpieces and adsorption component are provided on the inner side of the frame, the dust removal mechanism is connected to a pushing mechanism fixed to the frame, and an air supply mechanism for providing air source to adsorption component and dust removal mechanism is provided on one side of the pushing mechanism.

[0007] The suction assembly includes a connecting rod connected to the frame, and an adsorption and bonding mechanism is connected to the bottom of the connecting rod. The adsorption and bonding mechanism is equipped with a sealing and shaping mechanism for shaping the adsorption state of the adsorption and bonding mechanism.

[0008] The adsorption and bonding mechanism includes a connecting pipe fixed to the bottom of the connecting rod, a ring-shaped disc fixed to the bottom of the connecting pipe, a plurality of air passages I arranged in an array along its central axis and extending upward through the bottom of the disc, and the air passages I slidably sleeved with the sealing and shaping mechanism, an air passage II extending inward and communicating with the adjacent air passage I arranged on the outer side of the disc, a ring-shaped bonding layer fixedly sleeved between the inner and outer rings of the bottom of the disc, partitions arranged in an array along its axis fixed to the bottom of the disc, buffer bodies fixedly sleeved between adjacent partitions, a stabilizing ring fixedly sleeved between the outer ring of the bottom of the disc and the bottom of the outer ring of the bonding layer, and a stabilizing body for shaping wrapped around the bonding layer.

[0009] As a further improvement to the above solution, the stabilizer includes an inner shaping plate with an annular structure and an outer shaping plate disposed on the outer ring of the inner shaping plate, with a U-shaped shaping frame disposed between the inner shaping plate and the outer shaping plate.

[0010] As a further improvement to the above solution, the frame includes two sets of support rods arranged in a C-shape, with a crossbar fixed between the two sets of support rods. A support plate fixed to the top of the two sets of support rods and connected to the crossbar is fixed to the top of the support plate. A top rod is fixed to the top of the support plate, and a flange is installed on the top of the top rod. A cover plate fixed to the top of the support rod is fixed to the outside of the support plate.

[0011] As a further improvement to the above solution, the propulsion mechanism includes a drive unit fixedly connected to the frame, a push-pull plate fixedly connected to the bottom of the drive unit and fixedly connected to the adjacent dust suppression mechanism, the push-pull plate having a through hole coaxially arranged with the dust suppression mechanism, and a guide unit installed between the push-pull plate and the frame.

[0012] As a further improvement to the above solution, the dust suppression mechanism includes a ring-shaped support plate fixedly connected to the bottom of the propulsion mechanism. The outer ring of the support plate has a ring-shaped connecting groove. An extension plate of the ring structure is sleeved at the opening of the connecting groove. A jet plate of the ring structure is fixedly connected to the bottom of the extension plate. The jet plate has an arc-shaped cross-section and is hollow. The extension plate has a connection channel that communicates with the inner cavity of the jet plate and the connecting groove. The outer ring of the jet plate has a spray hole that communicates with its inner cavity. An air pipe connected to the connecting groove is fixedly connected to the top of the support plate.

[0013] As a further improvement to the above solution, the connecting rod includes a tube body, a retaining ring fixedly connected to the bottom of the tube body and fixedly connected to the adsorption and bonding mechanism, a movable sleeve slidably connected to the tube body at the top of the retaining ring, an L-shaped connecting plate fixedly connected to the frame body on the outer ring of the movable sleeve, locking plates threadedly connected to the movable sleeve at the bottom and top of the connecting plate, and an air pipe connector fixedly connected to the top of the tube body.

[0014] As a further improvement to the above solution, the sealing and shaping mechanism includes a ring-shaped support ring fixed to the inner side wall of the disc body, an annular airbag fixed to the top of the support ring, a synchronization plate coaxially arranged to the top of the airbag, a sliding rod slidably sleeved with the disc body fixed to the top of the synchronization plate, a dispersion plate fixed to the top of the connecting pipe and the top of the sliding rod, and a sealing rod slidably sleeved with the air passage.

[0015] As a further improvement to the above solution, the air supply mechanism includes an air inlet pipe and an air extraction pipe. Both the air inlet pipe and the air extraction pipe are fitted with connecting seats that are fixed to the frame. The air extraction pipe is equipped with a first air distribution pipe that is connected to the suction component. One end of the air inlet pipe has a second air distribution pipe that is connected to the dust suppression mechanism.

[0016] As a further improvement to the above solution, the partition divides the space between the bonding layer and the disc into buffer cavities distributed in an array along the axis of the disc. The buffer body is located in the buffer cavity and is made of elastic sponge. The air passage is connected to the buffer cavity.

[0017] As a further improvement to the above solution, one end of the shaping frame extends to the inner side of the bottom inner ring of the disc body, and the other end of the shaping frame extends to the outer side of the bottom outer ring of the disc body. The shaping frame and the partition are distributed in a mutually spaced manner.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. This invention realizes the method of first air-cooling the injection-molded car bumper and then adaptively adsorbing and bonding it for material removal. It can quickly reduce the temperature of the car bumper and the material removal component before adsorption, so that the car bumper is below the temperature at which it is prone to deformation before being picked up, thereby reducing the stability of the car bumper and avoiding deformation of the car bumper due to excessive temperature during material removal, thus improving the processing quality and stability of the car bumper.

[0020] 2. The invention can blow away foreign objects and dust from the surface of car bumpers and material handling equipment, improve the adhesion and reduce the risk of falling off due to weak adhesion.

[0021] 3. The invention can automatically adjust the adsorption and contact surface according to the curvature of the car bumper surface. At the same time, airbags are used to buffer the negative pressure during the adsorption process to avoid deformation of the car bumper caused by excessive negative pressure, thereby improving the stability and safety of adsorption and material picking. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of a material handling device for injection molding of an automobile bumper that reduces adsorption deformation, provided by the present invention;

[0023] Figure 2A cross-sectional view of a material handling device for injection molding of an automobile bumper that reduces adsorption deformation, provided by the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of the suction component provided by the present invention;

[0025] Figure 4 This is a schematic diagram of the adsorption and bonding mechanism provided by the present invention;

[0026] Figure 5 This is a schematic diagram of the distribution of the partitions and buffers provided by the present invention;

[0027] Figure 6 A schematic diagram of the structure of the stabilizer provided by the present invention;

[0028] Figure 7 This is a schematic diagram of the dust suppression mechanism provided by the present invention.

[0029] Explanation of key symbols:

[0030] 1. Frame; 2. Pushing mechanism; 3. Dust suppression mechanism; 4. Suction assembly; 5. Air supply mechanism; 11. Support frame; 13. Crossbar; 14. Support plate; 15. Cover plate; 16. Top rod; 21. Pipe body; 22. Retaining ring; 23. Movable sleeve; 24. Connecting plate; 25. Locking plate; 26. Air pipe connector; 31. Bearing plate; 32. Connecting groove; 33. Extension plate; 34. Connecting channel 35. Jet plate; 36. Nozzle; 41. Disc; 42. Connecting pipe; 43. Airway 1; 44. Airway 2; 51. Support ring; 52. Airbag; 53. Sliding rod; 54. Dispersion disc; 55. Sealing rod; 61. Adhesive layer; 62. Partition; 63. Stabilizing ring; 64. Stabilizer; 65. Buffer; 641. Inner shaping plate; 642. Outer shaping plate; 643. Shaping frame. Detailed Implementation

[0031] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0032] Example 1:

[0033] Please combine Figures 1-7 This embodiment of a material handling device for injection molding of car bumpers with reduced adsorption deformation includes a frame 1. The inner side of the frame 1 is provided with a suction component 4 for picking up the workpiece and a dust removal mechanism 3 for cooling the workpiece and the suction component 4 to remove dust. The dust removal mechanism 3 is connected to a push mechanism 2 fixed to the frame 1. A gas supply mechanism 5 is provided on one side of the push mechanism 2 for providing a gas source to the suction component 4 and the dust removal mechanism 3.

[0034] The suction component 4 includes a connecting rod connected to the frame 1. The bottom of the connecting rod is connected to an adsorption and bonding mechanism. The adsorption and bonding mechanism is equipped with a sealing and shaping mechanism for shaping the adsorption state of the adsorption and bonding mechanism.

[0035] The adsorption and bonding mechanism includes a connecting pipe 42 fixedly connected to the bottom of the connecting rod. A ring-shaped disc 41 is fixedly connected to the bottom of the connecting pipe 42. Multiple air passages 43 are arranged in an array along the central axis and extend upward through the bottom of the disc 41. The air passages 43 are slidably sleeved with the sealing and shaping mechanism. An air passage 44 is arranged on the outer side of the disc 41, extending inward and communicating with the adjacent air passages 43. A ring-shaped bonding layer 61 is fixedly sleeved between the inner and outer rings at the bottom of the disc 41. A partition 62 is fixedly connected to the bottom of the disc 41 and arranged in an array along its axis. A buffer 65 is fixedly connected between adjacent partitions 62. A stabilizing ring 63 is fixedly sleeved on the outer ring of the bottom of the disc 41 and is fixedly connected to the bottom of the outer ring of the bonding layer 61. The bonding layer 61 is wrapped with a stabilizing body 64 for shaping.

[0036] The stabilizer 64 includes an inner shaping plate 641 with an annular structure and an outer shaping plate 642 disposed on the outer ring of the inner shaping plate 641. A shaping frame 643 with a U-shaped structure is disposed between the inner shaping plate 641 and the outer shaping plate 642.

[0037] The connecting rod includes a tube body 21. A retaining ring 22 is fixedly connected to the bottom of the tube body 21 and is fixedly connected to the adsorption and bonding mechanism. A movable sleeve 23 is provided on the top of the retaining ring 22 and is slidably sleeved with the tube body 21. An L-shaped connecting plate 24 is sleeved on the outer ring of the movable sleeve 23 and is fixedly connected to the frame 1. Locking plates 25 are installed at the bottom and top of the connecting plate 24 and are threadedly sleeved with the movable sleeve 23. An air pipe connector 26 is fixedly connected to the top of the tube body 21.

[0038] The sealing and shaping mechanism includes a ring-shaped support ring 51 fixed to the inner wall of the disc body 41, an annular airbag 52 fixed to the top of the support ring 51, a synchronization plate coaxially arranged to the top of the airbag 52, a sliding rod 53 slidably sleeved with the disc body 41 fixed to the top of the synchronization plate, a dispersion disc 54 fixed to the top of the connecting pipe 42, and a sealing rod 55 slidably sleeved with the air passage 43.

[0039] The partition 62 divides the space between the bonding layer 61 and the disc body 41 into buffer cavities distributed in an array along the axis of the disc body 41. The buffer body 65 is located in the buffer cavity and is made of elastic sponge. The air passage 43 is connected to the buffer cavity. One end of the shaping frame 643 extends to the inner side of the bottom inner ring of the disc body 41, and the other end of the shaping frame 643 extends to the outer side of the bottom outer ring of the disc body 41. The shaping frame 643 and the partition 62 are distributed in an alternating manner.

[0040] A handling device connected to the picking device is pre-installed near the injection molding machine. The handling device can be a six-axis robot or a three-coordinate robot formed by a linear module and a rotating mechanism for driving the picking device to rotate. The picking device is connected to the output end of the three-coordinate robot, and a vacuum pump for vacuuming and an air pump for providing air source are arranged. The electrical connection operation between the picking device and the handling device is completed.

[0041] During the material handling process, the material handling device is driven to move towards the injection molding machine using the handling equipment. When the injection molding machine finishes molding the car bumper, it opens the mold and drives the material handling device to approach the car bumper and then picks up the car bumper. The injection molding machine then ejects the car bumper, allowing the material handling device to complete the picking up operation. Finally, the handling equipment is used to move the car bumper out.

[0042] During material adsorption, the airflow used to cool the workpiece is input into the air inlet pipe of the air supply mechanism 5 along the air pump, and then enters the dust removal mechanism 3. After the cold airflow enters the dust removal mechanism 3, the dust removal mechanism 3 blows and cools the surface of the injection-molded workpiece and the suction component 4. On the one hand, the workpiece is cooled quickly so that it reaches the temperature that can be used for material adsorption. On the other hand, foreign dust on the surface of the workpiece and the suction component 4 is blown away so that the subsequent adsorption of the workpiece is firm and stable.

[0043] After cooling, the propulsion mechanism 2 is activated, causing the dust removal mechanism 3 to move away from the workpiece. Then, the entire material handling device moves towards the workpiece, and the suction component 4 contacts the workpiece. The air extraction pipe draws air, causing the suction component 4 to perform negative pressure adsorption on the workpiece. During the adsorption process, the suction component 4 automatically adjusts the contact angle with the workpiece, so that the suction component 4 adheres to the surface of the workpiece to achieve the adsorption operation on the workpiece.

[0044] Example 2:

[0045] Based on Embodiment 1, the further improvement of this embodiment is that: the frame 1 includes two sets of support rods 11 arranged in a C-shape, a crossbar 13 is fixed between the two sets of support rods 11, a support plate 14 fixed to the top of the two sets of support rods 11 and fixed to the crossbar 13, a top rod 16 fixed to the top of the support plate 14, a flange is installed on the top of the top rod 16, and a cover plate 15 fixed to the top of the support rod 11 is fixed to the outside of the support plate 14.

[0046] The propulsion mechanism 2 includes a drive unit fixedly connected to the frame 1. A push-pull plate fixedly connected to the bottom of the drive unit and to the adjacent dust suppression mechanism 3 is fixedly connected. The push-pull plate has a through hole coaxially arranged with the dust suppression mechanism 3. A guide unit is installed between the push-pull plate and the frame 1. The guide unit includes a guide tube fixedly connected to the frame 1. A guide rod fixedly connected to the push-pull plate is slidably sleeved on the guide tube. The drive unit adopts either a cylinder or a push rod motor.

[0047] The dust suppression mechanism 3 includes a ring-shaped support plate 31 fixedly connected to the bottom of the propulsion mechanism 2. The outer ring of the support plate 31 has a ring-shaped connecting groove 32. The opening of the connecting groove 32 is fitted with a ring-shaped extension plate 33. The bottom of the extension plate 33 is fixedly connected to a ring-shaped jet plate 35. The jet plate 35 has an arc-shaped cross-section and is hollow. The extension plate 33 has a reserved connecting channel 34 that connects to the inner cavity of the jet plate 35 and the connecting groove 32. The outer ring of the jet plate 35 has a spray hole 36 that connects to its inner cavity. The top of the support plate 31 is fixedly connected to an air pipe 1 that connects to the connecting groove 32. The air pipe 1 is connected to the adjacent air distribution pipe 2.

[0048] The air supply mechanism 5 includes an air inlet pipe and an air extraction pipe. Both the air inlet pipe and the air extraction pipe are fitted with connecting seats that are fixed to the frame 1. The air extraction pipe is equipped with a first air distribution pipe that is connected to the suction component 4. One end of the air inlet pipe has a second air distribution pipe that is connected to the dust removal mechanism 3. Solenoid valves are installed on the air inlet pipe and the air extraction pipe.

[0049] During the cooling and dust removal process, the external cold air source enters the branch air pipe 2 along the air inlet pipe, then enters the air pipe 1, then enters the connecting groove 32, and enters the jet plate 35 along the connecting channel 34. Then it is sprayed out from the spray hole 36 on the jet plate 35 to spray the bottom of the suction component 4 located in the inner ring of the support plate 31, and also sprays the surface of the workpiece, so as to realize the jet cooling and dust removal operation of the workpiece and the suction component 4.

[0050] During the adsorption process, the workpiece is cooled to an adsorbable temperature under the action of the dust removal mechanism 3. Then, the bonding layer 61 comes into contact with the workpiece surface. As the bonding layer 61 moves towards the workpiece, the workpiece exerts a reverse thrust on the bonding layer 61, causing the bonding layer 61 to deform. At this time, the bonding layer 61 squeezes the partition 62 and the buffer body 65. The gas inside the buffer chamber is discharged along the first air passage 43 to the second air passage 44. At the same time, depending on the inclination of the workpiece surface, the degree of deformation and the exhaust volume inside each buffer chamber are different. When extraction is performed... During vacuum adsorption, the gas inside the disk 41 is extracted, and the inside of the disk 41 is in a negative pressure state. The bonding layer 61 achieves negative pressure adsorption of the workpiece. At the same time, the volume of the airbag 52 decreases, the synchronous plate moves towards the support ring 51, the sliding rod 53 drives the dispersion disk 54 to move, causing the sealing rod 55 to move and block the second air passage 44, thereby keeping the buffer chamber locked and keeping the bottom of the adsorption bonding mechanism in a stable state. The state of the bonding layer 61 is automatically adjusted to adhere to the surface of the workpiece, thereby completing the adsorption operation of the workpiece.

[0051] During the adsorption process, the air pressure between the buffer chambers is consistent. At the same time, the stabilizer 64 and the partition 62 located inside the adsorption layer 61 form a mesh structure skeleton, which prevents the adsorption layer 61 from being too soft, reduces the deformation of the adsorption layer 61 during the adsorption process, and also gives the adsorption layer 61 a certain strength, maintaining the stability and strength of its structure during adsorption deformation.

[0052] This design enables the use of an air-cooling process followed by adaptive adsorption and bonding to pre-pumped car bumpers. This rapidly reduces the temperature of the bumper and the picking component before adsorption, ensuring the bumper is below its deformation temperature before pickup. This reduces bumper instability and prevents deformation due to overheating during pickup, improving processing quality and stability. It also blows away foreign matter and dust from the bumper and picking equipment, enhancing adhesion and reducing the risk of loose parts falling off. Furthermore, it automatically adjusts the adsorption contact surface according to the bumper's curvature, and uses airbags to buffer negative pressure during adsorption, preventing deformation caused by excessive negative pressure and improving the stability and safety of the adsorption process.

[0053] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A material handling device for injection molding of automotive bumpers that reduces adsorption deformation, characterized in that, The device includes a frame, inside which is provided a suction assembly for picking up workpieces and a dust removal mechanism for cooling and dust removal of the workpieces and suction assembly. The dust removal mechanism is connected to a pushing mechanism fixed to the frame, and a gas supply mechanism is provided on one side of the pushing mechanism for providing a gas source to the suction assembly and the dust removal mechanism. The suction assembly includes a connecting rod connected to the frame, and an adsorption and bonding mechanism is connected to the bottom of the connecting rod. The adsorption and bonding mechanism is equipped with a sealing and shaping mechanism for shaping the adsorption state of the adsorption and bonding mechanism. The adsorption and bonding mechanism includes a connecting pipe fixed to the bottom of the connecting rod, a ring-shaped disc fixed to the bottom of the connecting pipe, a plurality of air passages I arranged in an array along its central axis and extending upward through the bottom of the disc, and the air passages I slidably sleeved with the sealing and shaping mechanism, an air passage II extending inward and communicating with the adjacent air passage I arranged on the outer side of the disc, a ring-shaped bonding layer fixedly sleeved between the inner and outer rings of the bottom of the disc, partitions arranged in an array along its axis fixed to the bottom of the disc, buffer bodies fixedly sleeved between adjacent partitions, a stabilizing ring fixedly sleeved between the outer ring of the bottom of the disc and the bottom of the outer ring of the bonding layer, and a stabilizing body for shaping wrapped around the bonding layer.

2. The material handling device for injection molding of automotive bumpers with reduced adsorption deformation as described in claim 1, characterized in that, The stabilizer includes an inner shaping plate with a ring structure and an outer shaping plate disposed on the outer ring of the inner shaping plate, with a U-shaped shaping frame disposed between the inner shaping plate and the outer shaping plate.

3. The material handling device for injection molding of automotive bumpers with reduced adsorption deformation as described in claim 1, characterized in that, The frame includes two sets of support rods arranged in a C-shape, with a crossbar fixed between the two sets of support rods. A support plate, which is fixed to the crossbar, is fixed to the top of the two sets of support rods. A top rod is fixed to the top of the support plate, and a flange is installed on the top of the top rod. A cover plate, which is fixed to the top of the support rod, is fixed to the outside of the support plate.

4. The material handling device for injection molding of automotive bumpers with reduced adsorption deformation as described in claim 1, characterized in that, The propulsion mechanism includes a drive unit fixedly connected to the frame, a push-pull plate fixedly connected to the bottom of the drive unit and to the adjacent dust suppression mechanism, the push-pull plate having a through hole coaxially arranged with the dust suppression mechanism, and a guide unit installed between the push-pull plate and the frame.

5. The material handling device for injection molding of automotive bumpers with reduced adsorption deformation as described in claim 1, characterized in that, The dust suppression mechanism includes a ring-shaped support plate fixedly connected to the bottom of the propulsion mechanism. The outer ring of the support plate has a ring-shaped connecting groove. An extension plate of the ring structure is sleeved at the opening of the connecting groove. A jet plate of the ring structure is fixedly connected to the bottom of the extension plate. The jet plate has an arc-shaped cross-section and is hollow. The extension plate has a pre-reserved connecting channel that communicates with the inner cavity of the jet plate and the connecting groove. The outer ring of the jet plate has spray holes that communicate with its inner cavity. An air pipe connected to the connecting groove is fixedly connected to the top of the support plate.

6. The material handling device for injection molding of automotive bumpers with reduced adsorption deformation as described in claim 1, characterized in that, The connecting rod includes a tube body, a retaining ring fixedly connected to the bottom of the tube body and fixedly connected to the adsorption and bonding mechanism, a movable sleeve slidably connected to the top of the retaining ring and connected to the tube body, an L-shaped connecting plate fixedly connected to the frame body is sleeved on the outer ring of the movable sleeve, locking plates threadedly connected to the movable sleeve are installed at the bottom and top of the connecting plate, and an air pipe connector is fixedly connected to the top of the tube body.

7. The material handling device for injection molding of automotive bumpers with reduced adsorption deformation as described in claim 1, characterized in that, The sealing and shaping mechanism includes a ring-shaped support ring fixed to the inner side wall of the disc body, an annular airbag fixed to the top of the support ring, a synchronization plate coaxially arranged to the top of the airbag, a sliding rod slidably sleeved with the disc body fixed to the top of the synchronization plate, a dispersion plate fixed to the top of the connecting pipe and the top of the sliding rod, and a sealing rod slidably sleeved with the air passage.

8. The material handling device for injection molding of automotive bumpers with reduced adsorption deformation as described in claim 1, characterized in that, The air supply mechanism includes an air inlet pipe and an air extraction pipe. Both the air inlet pipe and the air extraction pipe are fitted with connecting seats that are fixed to the frame. The air extraction pipe is equipped with a first air distribution pipe that is connected to the suction component. One end of the air inlet pipe has a second air distribution pipe that is connected to the dust suppression mechanism.

9. A material handling device for injection molding of automotive bumpers with reduced adsorption deformation as described in claim 1, characterized in that, The partition divides the space between the bonding layer and the disc into buffer cavities distributed in an array along the axis of the disc. The buffer body is located inside the buffer cavity and is made of elastic sponge. The air passage is connected to the buffer cavity.

10. A material handling device for injection molding of automotive bumpers with reduced adsorption deformation as described in claim 2, characterized in that, One end of the shaping frame extends to the inner side of the bottom inner ring of the disc body, and the other end of the shaping frame extends to the outer side of the bottom outer ring of the disc body. The shaping frame and the partition are distributed in a mutually spaced manner.

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