Edge trimming device for plastic packaging drums

By using an adaptive clamping structure and a worm gear drive linkage trimming device, the problems of unstable fixing and limited applicability of plastic packaging barrels are solved, achieving stable clamping and efficient trimming of plastic barrels of different sizes.

CN224527776UActive Publication Date: 2026-07-21TIANJIN HUAPU PLASTIC CONTAINER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN HUAPU PLASTIC CONTAINER CO LTD
Filing Date
2025-07-17
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing trimming devices are not securely fixed and can only trim plastic packaging buckets of the same size, making them limited in applicability and unable to effectively hold plastic buckets of different sizes.

Method used

The self-adaptive clamping structure, consisting of a triangular rod, a push rod, and a sliding block, combined with worm gear transmission and spur gear rack linkage, enables lateral and angle adjustment of the scraper. The scraper position can be adjusted through a threaded adjustment structure to meet the trimming needs of plastic buckets of different sizes.

Benefits of technology

It achieves stable clamping of plastic buckets of different diameters, improves the equipment's versatility and trimming accuracy, and enhances trimming efficiency and automation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an edge trimming device of plastic packing barrel, including work table 1, the upper end fixedly connected with fixed frame 2 of work table 1, the inside fixedly connected with rotating cylinder 3 of work table 1, the inside rotatory connection has the placement tray 4 of rotating cylinder 3, the inside center end fixed mounting of rotating cylinder 3 has drive motor 5, the output end transmission connection has triangular rod 6 of drive motor 5, the outside periphery rotatory connection has push rod 7 of triangular rod 6, the surface of placement tray 4 is equipped with three limit slot 8, the inside sliding connection has sliding block 9 of limit slot 8, and the lower end of sliding block 9 is rotatory connected with push rod 7, the inside fixed mounting of work table 1 has servo motor 29, the edge trimming device of plastic packing barrel in the utility model discloses, through triangular rod, push rod and sliding block, can be according to the plastic barrel of different diameter automatic regulation clamping force and position, clamping firm, wide application range, has solved the problem that traditional clamp can only clamping single size.
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Description

Technical Field

[0001] This utility model relates to the field of trimming device technology, specifically a trimming device for plastic packaging barrels. Background Technology

[0002] Plastic is a very common and practical material, and it is used in a variety of ways in life. Plastic has good plasticity and can be made into all kinds of items, such as buckets and basins. Most buckets and basins in our lives are made of plastic. When plastic buckets are processed by extrusion molding, flash often appears at the mouth, which needs to be treated by a trimming device.

[0003] Current trimming devices suffer from insecure fixing and can only trim plastic packaging buckets of the same size. When clamping plastic buckets that do not match, the fixing effect is not ideal, resulting in limited applicability. Therefore, we propose a trimming device for plastic packaging buckets. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] This utility model discloses a trimming device for plastic packaging barrels, comprising a workbench, a fixed frame fixedly connected to the upper end of the workbench, a rotating cylinder fixedly connected inside the workbench, a placement plate rotatably connected inside the rotating cylinder, a drive motor fixedly installed at the center end of the rotating cylinder, a triangular rod drivenly connected to the output end of the drive motor, a push rod rotatably connected to the outer periphery of the triangular rod, three limiting grooves opened on the surface of the placement plate, a sliding block slidably connected inside the limiting groove, and the lower end of the sliding block rotatably connected to the push rod, and a servo motor fixedly installed inside the workbench, with the output end of the servo motor drivenly connected to the rotating cylinder.

[0006] As a preferred embodiment of this utility model, a fixed column is fixedly connected to the top of the sliding block, and an arc-shaped plate is fixedly connected to the outer periphery of the fixed column.

[0007] As a preferred technical solution of this utility model, a power motor is fixedly installed on both upper ends of the fixed frame, and a lead screw is driven to the output end of the power motor, and a lifting plate is threaded to the outer circumference of the lead screw.

[0008] As a preferred embodiment of this utility model, the surface of the lifting plate is provided with a square groove, a protective box is fixedly connected to the top of the lifting plate, a worm gear is rotatably connected inside the protective box, and a worm wheel is driven to the outer periphery of the worm gear.

[0009] As a preferred embodiment of this utility model, a spur gear is rotatably connected inside the square groove, and a rack is meshed with both sides of the outer periphery of the spur gear, and the inner side of the square groove is slidably connected to the rack.

[0010] As a preferred embodiment of this utility model, a mounting block is fixedly connected to the bottom of one end of the rack, an arc-shaped frame is fixedly connected to the lower end of the mounting block, a rotating column is rotatably connected to one side of the arc-shaped frame, a connecting sleeve is fixedly connected to the outer periphery of the rotating column, and a scraper is fixedly connected to one side of the connecting sleeve.

[0011] As a preferred embodiment of this utility model, a sliding groove is provided on one side of the arc-shaped frame, a threaded rod is fixedly connected to one side of the connecting sleeve, and the outer circumference of the threaded rod is slidably connected to the sliding groove. A threaded sleeve is provided on one side of the sliding groove, and the inside of the threaded sleeve is threadedly connected to the threaded rod.

[0012] The beneficial effects of this utility model are:

[0013] 1. The trimming device for this type of plastic packaging bucket, through the self-adaptive clamping structure composed of a triangular rod, a push rod and a sliding block, can automatically adjust the clamping force and position according to plastic buckets of different diameters, clamping firmly and with a wide range of applications, solving the problem that traditional clamps can only clamp a single size.

[0014] 2. The trimming device for this type of plastic packaging bucket drives a spur gear and a double-sided rack through worm gear transmission to achieve the lateral adjustment function of the scraper, which can adapt to the trimming needs of various sizes of plastic buckets and improve the equipment's versatility and automation level.

[0015] 3. The trimming device for this type of plastic packaging bucket, by setting an arc-shaped frame with a sliding groove and threaded adjustment structure, facilitates the adjustment of the scraper angle and position, and enables quick replacement and locking, thereby improving trimming accuracy and efficiency. This utility model has a simple and reasonable structure, novel design, and simple and convenient operation, and has high practical value. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a perspective view of a trimming device for a plastic packaging bucket according to this utility model;

[0018] Figure 2 This is a schematic diagram of the triangular rod structure of a trimming device for a plastic packaging bucket according to this utility model;

[0019] Figure 3This is a schematic diagram of the connecting sleeve structure of a trimming device for a plastic packaging bucket according to this utility model;

[0020] Figure 4 This is a schematic diagram of the rack structure of a trimming device for a plastic packaging bucket according to this utility model;

[0021] Figure 5 This is a schematic diagram of the lead screw structure of a trimming device for a plastic packaging bucket according to this utility model;

[0022] Figure 6 This is a schematic diagram of the servo motor structure of a trimming device for a plastic packaging bucket according to this utility model.

[0023] In the diagram: 1. Workbench; 2. Fixing frame; 3. Rotating cylinder; 4. Placement tray; 5. Drive motor; 6. Triangular rod; 7. Push rod; 8. Limiting groove; 9. Sliding block; 10. Fixing column; 11. Arc plate; 12. Power motor; 13. Lead screw; 14. Lifting plate; 15. Square groove; 16. Protective box; 17. Worm gear; 18. Worm wheel; 19. Spur gear; 20. Rack; 21. Mounting block; 22. Arc frame; 23. Rotating column; 24. Connecting sleeve; 25. Scraper; 26. Slide groove; 27. Threaded rod; 28. Threaded sleeve; 29. ​​Servo motor. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] Example: Figures 1-5 As shown, this utility model discloses a trimming device for plastic packaging barrels, including a workbench 1, a fixed frame 2 fixedly connected to the upper end of the workbench 1, a rotating cylinder 3 fixedly connected inside the workbench 1, a placement plate 4 rotatably connected inside the rotating cylinder 3, a drive motor 5 fixedly installed at the center end of the rotating cylinder 3, a triangular rod 6 drivenly connected to the output end of the drive motor 5, a push rod 7 rotatably connected to the outer periphery of the triangular rod 6, three limiting grooves 8 are opened on the surface of the placement plate 4, a sliding block 9 is slidably connected inside the limiting grooves 8, and the lower end of the sliding block 9 is rotatably connected to the push rod 7, and a servo motor 29 is fixedly installed inside the workbench 1, and the output end of the servo motor 29 is drivenly connected to the rotating cylinder 3.

[0026] The top of the sliding block 9 is fixedly connected to a fixed post 10, and the outer periphery of the fixed post 10 is fixedly connected to an arc plate 11. The arc plate 11 is used to fit against the outer wall of the bottom of the plastic bucket, thereby enhancing the clamping stability and preventing the bucket from shifting or shaking during the trimming process.

[0027] The upper ends of both sides of the fixed frame 2 are fixedly installed with a power motor 12. The output end of the power motor 12 is connected to a lead screw 13. The outer circumference of the lead screw 13 is connected to a lifting plate 14. By controlling the forward and reverse rotation of the power motor 12, the lifting plate 14 can be moved up and down, thereby adjusting the height of the trimming assembly to adapt to the opening of the plastic bucket of different heights.

[0028] The lifting plate 14 has a square groove 15 on its surface. A protective box 16 is fixedly connected to the top of the lifting plate 14. A worm gear 17 is rotatably connected inside the protective box 16. A worm wheel 18 is connected to the outer periphery of the worm gear 17. The worm wheel 18 is linked with a spur gear 19. The spur gear 19 is located inside the square groove 15 and meshes with the racks 20 on both sides. The racks 20 can slide inside the square groove 15.

[0029] The square groove 15 is rotatably connected to a spur gear 19, and the outer sides of the spur gear 19 are meshed with racks 20. The inner side of the square groove 15 is slidably connected to the racks 20. The spur gear 19 is driven to rotate through the worm gear transmission structure, thereby driving the racks 20 on both sides to move inward or outward synchronously.

[0030] Among them, a mounting block 21 is fixedly connected to the bottom of one end of the rack 20, an arc-shaped frame 22 is fixedly connected to the lower end of the mounting block 21, a rotating column 23 is rotatably connected to one side of the arc-shaped frame 22, a connecting sleeve 24 is fixedly connected to the outer periphery of the rotating column 23, and a scraper 25 is fixedly connected to one side of the connecting sleeve 24. The scraper 25 is used to cut the burrs at the mouth of the plastic bucket.

[0031] The arc frame 22 has a groove 26 on one side, and a threaded rod 27 is fixedly connected to one side of the connecting sleeve 24. The outer circumference of the threaded rod 27 is slidably connected to the groove 26. A threaded sleeve 28 is provided on one side of the groove 26, and the inside of the threaded sleeve 28 is threadedly connected to the threaded rod 27. By threading the threaded sleeve 28 to the threaded rod 27, the position of the scraper 25 can be locked by tightening the threaded sleeve 28, which makes it easy to flexibly adjust the angle and position according to the actual trimming needs.

[0032] Working principle: In use, place the plastic packaging bucket to be trimmed on the placement tray 4, start the drive motor 5, and the drive motor 5 drives the triangular rod 6 to rotate. The triangular rod 6 pushes the sliding block 9 along the limiting groove 8 through the push rod 7, thereby driving the fixed column 10 and the arc plate 11 to move inward, clamping the bottom outer wall of the plastic bucket, and realizing automatic centering clamping. This structure can automatically adjust the clamping position according to plastic buckets of different diameters, with strong adaptability and stable clamping. At the same time, after clamping is completed, start the power motor 12, and the power motor 12 drives the lead screw 13 to rotate, so that the lifting plate 14 moves up and down in the vertical direction to the appropriate height. The worm gear 17 inside the protective box 16 is externally controlled to rotate, driving the worm wheel 18 to rotate. The worm wheel 18 is linked with the spur gear 19, causing the racks 20 on both sides to move inward or outward synchronously. This drives the mounting block 21 and the arc frame 22 below to adjust laterally to fit the opening of plastic buckets of different sizes. The scraper 25 is connected to the connecting sleeve 24 through the rotating column 23 and can rotate and adjust its angle within the arc frame 22. The threaded rod 27 slides with the slide groove 26 and is locked and fixed by the threaded sleeve 28, allowing the scraper 25 to flexibly adjust according to the position of the flash and maintain a stable cutting state. Throughout the trimming process, the plastic bucket is stably clamped and the rotating cylinder 3 is driven to rotate by the servo motor 29. The scraper 25 performs efficient and uniform cutting of the flash at the opening of the bucket according to the set trajectory, avoiding unevenness or damage caused by manual operation.

[0033] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] The above description is merely 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 trimming device for plastic packaging barrels, comprising a workbench (1), characterized in that, The upper end of the workbench (1) is fixedly connected to a fixed frame (2). The inside of the workbench (1) is rotatably connected to a rotating cylinder (3). The inside of the rotating cylinder (3) is rotatably connected to a placement plate (4). The center end of the rotating cylinder (3) is fixedly installed with a drive motor (5). The output end of the drive motor (5) is driven by a triangular rod (6). The outer periphery of the triangular rod (6) is rotatably connected to a push rod (7). The surface of the placement plate (4) is provided with three limiting grooves (8). The inside of the limiting grooves (8) is slidably connected to a sliding block (9). The lower end of the sliding block (9) is rotatably connected to the push rod (7). The inside of the workbench (1) is fixedly installed with a servo motor (29). The output end of the servo motor (29) is driven by the rotating cylinder (3).

2. The trimming device for a plastic packaging bucket according to claim 1, characterized in that, The top of the sliding block (9) is fixedly connected to a fixed column (10), and the outer periphery of the fixed column (10) is fixedly connected to an arc plate (11).

3. The trimming device for a plastic packaging bucket according to claim 1, characterized in that, The upper ends of both sides of the fixed frame (2) are fixedly installed with a power motor (12), and the output end of the power motor (12) is connected to a lead screw (13). The outer circumference of the lead screw (13) is threadedly connected to a lifting plate (14).

4. The trimming device for a plastic packaging bucket according to claim 3, characterized in that, The surface of the lifting plate (14) is provided with a square groove (15), and a protective box (16) is fixedly connected to the top of the lifting plate (14). A worm gear (17) is rotatably connected inside the protective box (16), and a worm wheel (18) is connected to the outer periphery of the worm gear (17).

5. The trimming device for a plastic packaging bucket according to claim 4, characterized in that, The square groove (15) is rotatably connected to a spur gear (19), and the outer sides of the spur gear (19) are meshed with racks (20), and the inner side of the square groove (15) is slidably connected to the racks (20).

6. The trimming device for a plastic packaging bucket according to claim 5, characterized in that, A mounting block (21) is fixedly connected to the bottom of one end of the rack (20), and an arc frame (22) is fixedly connected to the lower end of the mounting block (21). A rotating column (23) is rotatably connected to one side of the arc frame (22), and a connecting sleeve (24) is fixedly connected to the outer periphery of the rotating column (23). A scraper (25) is fixedly connected to one side of the connecting sleeve (24).

7. The trimming device for a plastic packaging bucket according to claim 6, characterized in that, The arc frame (22) has a sliding groove (26) on one side, and a threaded rod (27) is fixedly connected to one side of the connecting sleeve (24). The outer periphery of the threaded rod (27) is slidably connected to the sliding groove (26). A threaded sleeve (28) is provided on one side of the sliding groove (26), and the inside of the threaded sleeve (28) is threadedly connected to the threaded rod (27).