Injection molded product gripper assembly and automated unloading apparatus

Abstract

The utility model relates to injection moulded product processing equipment technical field discloses injection moulded product clamp jaw subassembly and automatic unloading equipment, including clamping mechanism, the clamping mechanism includes fixed frame no.

Description

Technical Field

[0001] This utility model relates to the field of injection molding product processing equipment technology, and in particular to injection molding product gripper components and automated unloading equipment. Background Technology

[0002] In the booming development of the injection molding industry, injection molding machines, with their powerful one-shot molding capabilities, have helped many products and parts achieve efficient mass production. This has not only significantly improved product molding quality but also greatly increased output. As the precision and complexity of injection molded products continue to rise, how to safely, accurately, and efficiently remove the product from the mold after injection molding has become a key link in ensuring production efficiency and product quality. As the core of the robotic arm unloading equipment for performing gripping actions, its core component, the clamping mechanism, plays a vital role.

[0003] The gripper assembly for injection molded products mainly consists of a drive unit, gripper body, and connecting mechanism. The drive unit typically uses a cylinder, hydraulic cylinder, or electric push rod to provide power to the gripper. The gripper body is designed as a parallel gripper, V-shaped gripper, etc., according to the shape of the product, and the surface has anti-slip textures or flexible materials to adapt to different products. The connecting mechanism is responsible for connecting and fixing the gripper to the robot arm. During operation, the drive unit receives control signals and pushes the gripper body to open and close. The gripping force is controlled by adjusting the power. After the injection molded product is formed, the gripper accurately positions and clamps the product. Under the action of the robot arm, the product is taken out of the mold, completing the entire gripping and handling process.

[0004] Currently, some injection molding product gripper assemblies on the market have structural defects in practical applications, lacking necessary buffer and shock absorption designs. When these gripper assemblies clamp injection molding products, due to the lack of buffer transition, they are very prone to hard contact with the product. This not only leaves defects such as clamping marks and indentations on the product surface, reducing the product yield, but may even cause irreversible structural damage to precision injection molded parts. At the same time, the impact force generated by hard collisions will also accelerate the wear of the gripper assembly itself and shorten the service life of the equipment. Therefore, we propose injection molding product gripper assemblies and automated unloading equipment to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a gripper assembly for injection molded products and an automated unloading device, aiming to improve the problem of the lack of buffer structure in the gripping process of the existing gripping assembly.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The injection molding product gripper assembly includes a clamping mechanism. The clamping mechanism includes a fixed frame two. A hydraulic cylinder two is fixedly connected to the rear end of the fixed frame two. A push block is fixedly connected to the drive end of the hydraulic cylinder two. Multiple transmission rods are rotatably connected to the outside of the push block. A sliding plate is rotatably connected to the outside of the transmission rods. Guide teeth are fixedly connected to the inside of the fixed frame two. Sliding teeth are fixedly connected to both the upper and lower ends of the push block. A fixed plate two is fixedly connected to the front end of the sliding plate. A clamping plate is slidably connected to the inside of the fixed plate two. A soft pad is fixedly connected to the outside of the clamping plate. A telescopic column two is fixedly connected to the section of the clamping plate away from the soft pad. A buffer spring is sleeved on the outside of the telescopic column two.

[0008] As a further description of the above technical solution:

[0009] The sliding plate has a groove on its outside, and the guide tooth is slidably connected to the inside of the groove.

[0010] As a further description of the above technical solution:

[0011] The sliding teeth are externally slidably connected to the inside of the second fixed frame, and the end of the second telescopic column away from the clamping plate is fixedly connected to the inside of the second fixed plate;

[0012] As a further description of the above technical solution:

[0013] One end of the buffer spring is fixedly connected to the end of the clamping plate away from the soft pad, and the other end of the buffer spring is fixedly connected to the inside of the second fixing plate.

[0014] An automated unloading device for moving the gripper assembly of the injection molded product described above includes a housing. A fixed frame is fixedly connected to the front end of the housing. Two guide pillars are fixedly connected inside the fixed frame. Sliding blocks are slidably connected to the outside of the two guide pillars. A hydraulic cylinder is fixedly connected to the front end of the fixed frame. A fixed plate is fixedly connected to the top of the sliding block. A movable frame is slidably connected inside the fixed plate. A tank chain is fixedly connected to the top of the fixed plate. A movable block is slidably connected inside the movable frame. A locking plate is fixedly connected to the bottom end of the movable block. A telescopic column is fixedly connected to the top of the movable block. A telescopic spring is sleeved on the outside of the telescopic column. A pull rod is fixedly connected to the outside of the movable block.

[0015] As a further description of the above technical solution:

[0016] The outer side of the locking plate is slidably connected to the inside of the movable frame, and the outer side of the pull rod is slidably connected to the inside of the movable frame;

[0017] As a further description of the above technical solution:

[0018] One end of the telescopic spring is fixedly connected to the inside of the movable frame, and the other end of the telescopic spring is fixedly connected to the top of the movable block. The drive end of the hydraulic cylinder is fixedly connected to the front end of the sliding block.

[0019] As a further description of the above technical solution:

[0020] The external part of the fixed frame 2 is slidably connected to the inside of the movable frame, and the top end of the telescopic column 1 is fixedly connected to the inside of the movable frame.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when gripping the injection molded product, the second hydraulic cylinder is activated, and the second hydraulic cylinder drives the push block to slide within the second fixed frame. The push block drives the sliding plate to slide through the transmission rod. The guide teeth guide the sliding plate, causing the two sliding plates to move towards each other, causing the clamping plate and the soft pad to contact the product. The clamping plate is squeezed and slides within the second fixed plate, compressing the buffer spring and gradually completing the clamping. The buffer design avoids hard contact and effectively protects the injection molded product from damage.

[0023] 2. In this utility model, after clamping the product, the vertical position is first adjusted by sliding the movable frame within the fixed plate, and then the hydraulic cylinder is activated to push the sliding block along the guide column to achieve horizontal displacement. After the product is delivered to the designated position, the clamping is released, and the unloading is completed. In addition, pulling the pull rod can cause the movable block to slide the locking plate, thereby releasing the restriction on the fixed frame and facilitating disassembly and maintenance. During installation, the pull rod control is eliminated, and the spring resets and fixes the product, significantly improving work efficiency. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of the injection molding product gripper assembly and automated unloading equipment proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of the structure of the sliding plate of the injection molding product gripper assembly and the automated unloading equipment proposed in this utility model.

[0026] Figure 3 This is a structural schematic diagram of the clamping assembly for injection molded products and the fixing frame of the automated unloading equipment proposed in this utility model.

[0027] Figure 4 This is a schematic diagram of the moving frame of the injection molding product gripper assembly and automated unloading equipment proposed in this utility model.

[0028] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Shell; 2. Fixing frame one; 3. Guide column; 4. Sliding block; 5. Fixing plate one; 6. Moving frame; 7. Tank chain; 8. Hydraulic cylinder one; 9. Moving block; 10. Clamping plate; 11. Telescopic column one; 12. Telescopic spring; 13. Pull rod; 14. Fixing frame two; 15. Sliding tooth; 16. Push block; 17. Transmission rod; 18. Sliding plate; 19. Guide tooth; 20. Hydraulic cylinder two; 21. Fixing plate two; 22. Clamping plate; 23. Buffer spring; 24. Telescopic column two; 25. Soft pad. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Example 1:

[0033] Reference Figures 1 to 3 This utility model provides an embodiment of an injection molding product gripper assembly, including a gripping mechanism. This gripping mechanism is designed to precisely and stably grip the injection molding product, ensuring the smooth progress of the subsequent unloading process. The gripping mechanism includes a second fixed frame 14, which provides a stable support structure for the entire gripping mechanism, ensuring that all components can be installed in an orderly manner and work collaboratively. A second hydraulic cylinder 20 is fixedly connected to the rear end of the second fixed frame 14. A push block 16 is fixedly connected to the drive end of the second hydraulic cylinder 20. The second hydraulic cylinder 20 serves as a power source, providing a strong and stable driving force for the movement of the push block 16, thereby driving the entire gripping action. Under the drive of the second hydraulic cylinder 20, the push block 16 can move in a fixed position... The internal structure of the second frame 14 slides smoothly. The external rotatable connection of the push block 16 is a plurality of transmission rods 17. The external rotatable connection of the transmission rods 17 is a sliding plate 18. The transmission rods 17 play the role of force transmission and conversion, converting the linear motion of the push block 16 into the sliding of the sliding plate 18, making the entire clamping process more flexible and efficient. Under the push of the transmission rods 17, the sliding plate 18 can slide inside the second fixed frame 14 according to a predetermined trajectory to complete the clamping of the injection molded product. The internal fixed connection of the second fixed frame 14 is a guide tooth 19. The guide tooth 19 can accurately guide the sliding direction of the sliding plate 18 when it slides, ensuring that the moving direction of the sliding plate 18 is accurate, thereby ensuring that the clamping plate 22 can accurately contact the injection molded product.

[0034] Both ends of the push block 16 are fixedly connected with sliding teeth 15. The cooperation between the sliding teeth 15 and the inside of the fixed frame 14 makes the push block 16 more stable during sliding, reducing shaking and offset, and improving clamping accuracy. The front end of the sliding plate 18 is fixedly connected with a fixed plate 21, which provides a stable track for the sliding of the clamping plate 22, ensuring that the clamping plate 22 can slide smoothly inside it. The clamping plate 22 is slidably connected inside the fixed plate 21, and a soft pad 25 is fixedly connected to the outside of the clamping plate 22. The soft pad 25 can avoid hard contact between the clamping plate 22 and the injection molded product, reduce damage to the surface of the injection molded product, and protect the quality of the product. The section of the clamping plate 22 away from the soft pad 25 is fixedly connected with a telescopic column 24. The telescopic column 24 can provide a certain support and guidance when the clamping plate 22 slides, ensuring that the sliding of the clamping plate 22 is more stable and smooth. A buffer spring 23 is sleeved on the outside of the telescopic column 24 to buffer... Spring 23 gradually compresses after clamping plate 22 contacts the injection molded product, acting as a buffer to further prevent excessive impact from damaging the injection molded product. The outer side of sliding plate 18 has a groove, and the outer side of guide tooth 19 is slidably connected to the inside of the groove. This design allows guide tooth 19 to better guide sliding plate 18, ensuring accurate sliding direction of sliding plate 18. The outer side of sliding tooth 15 is slidably connected to the inside of fixed frame 2 14, ensuring stable sliding of push block 16 inside fixed frame 2 14. The end of telescopic column 24 away from clamping plate 22 is fixedly connected to the inside of fixed plate 2 21, ensuring that telescopic column 24 can effectively support and guide clamping plate 22. One end of buffer spring 23 is fixedly connected to the end of clamping plate 22 away from soft pad 25, and the other end of buffer spring 23 is fixedly connected to the inside of fixed plate 2 21, so that buffer spring 23 can play a good buffering role when clamping plate 22 slides.

[0035] Example 2:

[0036] Reference Figures 3 to 5This embodiment discloses an automated unloading device for moving the gripper assembly of the injection molded product mentioned in Embodiment 1. The device includes a housing 1, which provides a stable external protective structure for the entire automated unloading device, protecting internal components from external environmental influences and ensuring normal operation. A fixed frame 2 is fixedly connected to the front end of the housing 1. Two guide posts 3 are fixedly connected inside the fixed frame 2, and sliding blocks 4 are slidably connected to the outside of the two guide posts 3. The guide posts 3 provide precise guidance for the sliding of the sliding blocks 4, ensuring accurate horizontal movement. Under the guidance of the guide posts 3, the sliding blocks 4 can smoothly slide horizontally, thereby adjusting the horizontal position of the gripper assembly and the injection molded product. A hydraulic cylinder 8 is fixedly connected to the front end of the fixed frame 2. The hydraulic cylinder 8 serves as the power source for horizontal movement, providing strong driving force for the sliding of the sliding blocks 4, ensuring that the sliding blocks 4 can quickly and accurately reach the designated position.

[0037] A fixed plate 5 is fixedly connected to the top of the sliding block 4. A movable frame 6 is slidably connected inside the fixed plate 5. The fixed plate 5 provides stable support and a track for the sliding of the movable frame 6, ensuring that the movable frame 6 can slide smoothly inside it. The sliding of the movable frame 6 can realize the vertical position adjustment of the gripper assembly and the injection molded product, so that the equipment can adapt to the material unloading requirements of different heights. A tank chain 7 is fixedly connected to the top of the fixed plate 5. The tank chain 7 can protect and drag the cables, oil pipes and other pipelines connected to the movable frame 6, ensuring that the pipelines are not worn or pulled during the movement of the movable frame 6. If damaged, the movable frame 6 has a sliding connection of a movable block 9 inside. The sliding of the movable block 9 inside the movable frame 6 can restrict and release the position of the fixed frame 14, which facilitates the disassembly and maintenance of the gripper assembly. The bottom end of the movable block 9 is fixedly connected to a locking plate 10. The locking plate 10 can restrict or release the position of the fixed frame 14 under the action of the movable block 9, so as to realize the quick disassembly and assembly of the gripper assembly. The top end of the movable block 9 is fixedly connected to a telescopic column 11. The telescopic column 11 can provide certain support and guidance when the movable block 9 slides, so as to ensure that the sliding of the movable block 9 is more stable and smooth.

[0038] A telescopic spring 12 is sleeved on the outside of the telescopic column 11. The telescopic spring 12 will generate elastic deformation when the moving block 9 slides. When the control of the pull rod 13 is released, the telescopic spring 12 can automatically push the moving block 9 and the locking plate 10 back to their original positions, thus restricting the position of the fixed frame 14. The moving block 9 is fixedly connected to the outside of the pull rod 13. The operator can control the sliding of the moving block 9 by pulling the pull rod 13, thereby restricting and releasing the position of the fixed frame 14. The locking plate 10 is externally slidably connected to the inside of the moving frame 6, ensuring that the locking plate 10 can slide smoothly inside the moving frame 6, accurately restricting or releasing the position of the fixed frame 14. The pull rod 13 is externally slidably connected to the inside of the moving frame 6. The interior of frame 6 allows the operator to easily control the sliding of the moving block 9 via the lever 13. One end of the telescopic spring 12 is fixedly connected to the interior of frame 6, and the other end of the telescopic spring 12 is fixedly connected to the top of the moving block 9, ensuring that the telescopic spring 12 can play a good elastic role when the moving block 9 slides. The drive end of hydraulic cylinder 18 is fixedly connected to the front end of the sliding block 4, so that hydraulic cylinder 18 can effectively drive the sliding block 4 to slide outside the guide column 3. The external sliding connection of fixed frame 2 14 is slidably connected to the interior of frame 6, which facilitates the installation and disassembly of the gripper assembly. The top of telescopic column 11 is fixedly connected to the interior of frame 6, ensuring that telescopic column 11 can provide stable support and guidance for the moving block 9.

[0039] Working principle: When the processing personnel need to grip the injection molded product, the hydraulic cylinder 20 is activated. The hydraulic cylinder 20 drives the push block 16 to slide inside the fixed frame 14 through the sliding teeth 15. When the push block 16 slides, it pushes the sliding plate 18 to slide inside the fixed frame 14 through the transmission rod 17. When the sliding plate 18 slides, the guide teeth 19 slide inside the sliding plate 18, thereby guiding the sliding direction of the sliding plate 18. Through the opposite movement of the two sliding plates 18, the clamping plate 22 causes the soft pad 25 to come into contact with the outside of the injection molded product. After the soft pad 25 contacts the object, the clamping plate 22 slides inside the fixed plate 21. The buffer spring 23 is compressed as the clamping plate 22 slides, gradually completing the clamping of the injection molded product and avoiding damage to the injection molded product caused by excessive hard contact.

[0040] After the injection-molded product is clamped, the vertical position of the product can be adjusted by the sliding of the movable frame 6 inside the fixed plate 5. Then, by activating the hydraulic cylinder 8, the sliding block 4 is pushed to slide outside the guide post 3, thereby moving the injection-molded product horizontally to the designated position. Then, the clamping assembly releases its restriction on the injection-molded product, completing the positional change and achieving automatic unloading. The operator can also pull the pull rod 13 to make the movable block 9 slide inside the movable frame 6. This allows the locking plate 10 to slide inside the movable frame 6 until the movable frame 6 no longer restricts the position of the fixed frame 14. At this point, the fixed frame 14 can be completely removed from the movable frame 6. During installation, the outside of the fixed frame 14 is slid into the inside of the movable frame 6, and then the control of the pull rod 13 is released. The telescopic spring 12 will automatically push the locking plate 10 to its original position, thereby restricting the position of the fixed frame 14. The quick disassembly and assembly of the fixed frame 14 facilitates maintenance and cleaning of the fixed frame 14, improving work efficiency.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gripper assembly for injection molded products, including a gripping mechanism, characterized in that: The clamping mechanism includes a second fixed frame (14), a second hydraulic cylinder (20) is fixedly connected to the rear end of the second fixed frame (14), a push block (16) is fixedly connected to the driving end of the second hydraulic cylinder (20), a plurality of transmission rods (17) are rotatably connected to the outside of the push block (16), a sliding plate (18) is rotatably connected to the outside of the transmission rods (17), a guide tooth (19) is fixedly connected inside the second fixed frame (14), sliding teeth (15) are fixedly connected to both the upper and lower ends of the push block (16), a second fixed plate (21) is fixedly connected to the front end of the sliding plate (18), a clamping plate (22) is slidably connected inside the second fixed plate (21), a soft pad (25) is fixedly connected to the outside of the clamping plate (22), a telescopic column (24) is fixedly connected to the section of the clamping plate (22) away from the soft pad (25), and a buffer spring (23) is sleeved on the outside of the telescopic column (24).

2. The gripper assembly for injection molded products according to claim 1, characterized in that: The sliding plate (18) has a groove on its outside, and the guide tooth (19) is slidably connected to the inside of the groove.

3. The gripper assembly for injection molded products according to claim 1, characterized in that: The sliding tooth (15) is externally slidably connected to the inside of the second fixed frame (14), and the end of the second telescopic column (24) away from the clamp (22) is fixedly connected to the inside of the second fixed plate (21).

4. The gripper assembly for injection molded products according to claim 1, characterized in that: One end of the buffer spring (23) is fixedly connected to the end of the clamping plate (22) away from the soft pad (25), and the other end of the buffer spring (23) is fixedly connected to the inside of the fixing plate (21).

5. An automated unloading device, wherein the gripper assembly for injection molded products according to any one of claims 1-4 moves, characterized in that: The device includes a housing (1), a fixed frame (2) fixedly connected to the front end of the housing (1), two guide columns (3) fixedly connected inside the fixed frame (2), a sliding block (4) slidably connected to the outside of the two guide columns (3), a hydraulic cylinder (8) fixedly connected to the front end of the fixed frame (2), a fixed plate (5) fixedly connected to the top of the sliding block (4), a movable frame (6) slidably connected inside the fixed plate (5), a tank chain (7) fixedly connected to the top of the fixed plate (5), a movable block (9) slidably connected inside the movable frame (6), a locking plate (10) fixedly connected to the bottom end of the movable block (9), a telescopic column (11) fixedly connected to the top of the movable block (9), a telescopic spring (12) sleeved on the outside of the telescopic column (11), and a pull rod (13) fixedly connected to the outside of the movable block (9).

6. The automated feeding device according to claim 5, characterized in that: The outer side of the locking plate (10) is slidably connected to the inside of the movable frame (6), and the outer side of the pull rod (13) is slidably connected to the inside of the movable frame (6).

7. The automated feeding device according to claim 5, characterized in that: One end of the telescopic spring (12) is fixedly connected to the inside of the movable frame (6), and the other end of the telescopic spring (12) is fixedly connected to the top of the movable block (9). The driving end of the hydraulic cylinder (8) is fixedly connected to the front end of the sliding block (4).

8. The automated feeding device according to claim 5, characterized in that: The external of the fixed frame 2 (14) is slidably connected to the inside of the movable frame (6), and the top end of the telescopic column 1 (11) is fixedly connected to the inside of the movable frame (6).

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