Plastic product cutting device with centering structure

By designing a limiting and clamping mechanism, and utilizing the cooperation of gears, racks, and double-ended threaded rods, precise centering and positioning of plastic sheets are achieved, solving the problem of inaccurate positioning in traditional cutting devices, improving cutting accuracy, and reducing material waste.

CN224239747UActive Publication Date: 2026-05-15青岛中泰润泽工程塑料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
青岛中泰润泽工程塑料有限公司
Filing Date
2025-05-19
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Traditional plastic sheet cutting devices are difficult to position accurately during the fixing process, resulting in low cutting accuracy, material waste, and increased production costs.

Method used

By employing a limiting mechanism and a clamping mechanism, and through the cooperation of gears, racks and pinions and double-threaded rods, the plate is centered and positioned. Combined with motor drive, this ensures that the plate is accurately centered before cutting.

Benefits of technology

It improves cutting precision, reduces material waste, and lowers production costs.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224239747U_ABST
    Figure CN224239747U_ABST
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Abstract

The plastic product cutting device with the centering structure comprises a fixing plate, four stand columns distributed in a rectangular shape are fixedly connected to the fixing plate in a penetrating mode, the upper ends of the four stand columns are jointly and fixedly connected with a top plate, a limiting mechanism used for limiting a plate is arranged at the upper end of the fixing plate, and the top plate is fixedly connected with the fixing plate. The limiting mechanism comprises a mounting plate fixedly connected to the center of the upper end of the fixing plate, two symmetrically-arranged second sliding rails are fixedly connected to the upper end of the mounting plate, two sliding blocks are slidably connected to the two second sliding rails, an L-shaped plate is jointly and fixedly connected between the two sliding blocks in the same transverse direction, and the L-shaped plate is fixedly connected to the lower end of the mounting plate. The lower ends of the two L-shaped plates are fixedly connected with racks. The plate centering device is reasonable in structure, through the arrangement of the limiting mechanism, after the clamping mechanism is used for clamping a plate, the limiting mechanism can be used for limiting the plate, centering of the plate is achieved, and the later cutting precision can be greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of plastic product processing technology, and in particular to a plastic product cutting device with a centering structure. Background Technology

[0002] In the plastics processing industry, the cutting process is a key step in processing molded plastic sheets into specific sizes and shapes. With the widespread application of plastic products in many fields such as construction, packaging, and electronics, the requirements for the cutting precision and efficiency of plastic products are also getting higher and higher.

[0003] In the prior art, traditional plastic sheets require a cutting device for cutting after processing. However, traditional cutting devices have significant drawbacks. For example, when using a traditional cutting device, the sheet needs to be fixed with clamps on both sides. However, it is difficult to accurately position the sheet during the fixing process, and it is easy to deviate. This not only leads to large dimensional errors in the cut product, making it difficult to meet the requirements of high precision, but also causes material waste and increases production costs. Therefore, this utility model proposes a plastic product cutting device with a centering structure to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a plastic product cutting device with a centering structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A plastic product cutting device with a centering structure includes a fixed plate. Four rectangularly distributed columns are fixedly connected through the fixed plate. A top plate is fixedly connected to the upper end of the four columns. A limiting mechanism for limiting the sheet material is provided at the upper end of the fixed plate. The limiting mechanism includes a mounting plate fixedly connected to the center of the upper end of the fixed plate. Two symmetrically arranged second slide rails are fixedly connected to the upper end of the mounting plate. Two sliders are slidably connected to each of the two second slide rails. An L-shaped plate is fixedly connected between the two sliders in the same horizontal direction. A rack is fixedly connected to the lower end of each of the two L-shaped plates. A gear is rotatably connected to the center of the upper end of the mounting plate. Two racks are respectively arranged on both sides of the rack and mesh with it. A clamping mechanism for holding the sheet material is provided at the upper end of the fixed plate. The clamping mechanism includes two symmetrically arranged sliding grooves opened at the upper end of the fixed plate. A moving block is slidably connected in each of the two sliding grooves. A U-shaped plate is fixedly connected to the upper end of each of the two moving blocks. Multiple equally spaced rollers are rotatably connected inside each of the two U-shaped plates.

[0007] Preferably, a second motor is fixedly connected to the lower end of the fixing plate, and the output shaft of the second motor is fixedly connected to the lower end of the gear shaft.

[0008] Preferably, a double-ended threaded rod is rotatably connected between the inner walls of the two ends of the two grooves, and the double-ended threaded rod passes through the two moving blocks and is threadedly connected to them.

[0009] Preferably, a first motor is fixedly connected to the side wall of the fixing plate, and the end of the output shaft of the first motor is fixedly connected to the end of the double-threaded rod.

[0010] Preferably, a first slide rail is fixedly connected to the lower end of the top plate, and a cutting machine is slidably connected to the first slide rail.

[0011] Compared with the prior art, the advantages of this utility model are as follows:

[0012] 1. By setting a limiting mechanism, the clamping mechanism clamps the plate. After clamping, the output shaft of the second motor is driven to rotate, which drives the gear to rotate, thereby driving the two meshing racks to move. The racks on both sides move towards the middle, driving the L-shaped plates on both sides to move towards the middle, pushing the front and rear side walls of the plate, so that the plate moves towards the middle, realizing the centering of the plate, which can greatly improve the cutting accuracy in the later stage.

[0013] 2. By setting up a clamping mechanism, the plate is placed between the U-shaped plates on both sides. The output shaft of the first motor is driven to rotate, which drives the double-headed threaded rod to rotate, thereby driving the two moving blocks that are threaded to it to move towards the middle. This can drive the U-shaped plate to move towards the middle, and drive the multiple rollers on both sides to move towards the middle to clamp the plate. After clamping, the plate can still move horizontally, which is convenient for the subsequent limiting mechanism to adjust the center of the plate, greatly improving the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a perspective view of a plastic product cutting device with a centering structure proposed in this utility model;

[0015] Figure 2 This is a front view of a plastic product cutting device with a centering structure proposed in this utility model;

[0016] Figure 3 This is a sectional perspective view of a plastic product cutting device with a centering structure proposed in this utility model;

[0017] Figure 4 This is a top cross-sectional view of a plastic product cutting device with a centering structure proposed in this utility model;

[0018] Figure 5 for Figure 2 Enlarged view of the structure at point A in the image.

[0019] In the diagram: 1. Fixed plate, 2. Column, 3. Top plate, 4. U-shaped plate, 5. First motor, 6. Moving block, 7. First slide rail, 8. Cutting machine, 9. Slide groove, 10. L-shaped plate, 11. Roller, 12. Mounting plate, 13. Double-ended threaded rod, 14. Second slide rail, 15. Slider, 16. Gear, 17. Rack, 18. Second motor. Detailed Implementation

[0020] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0021] Reference Figure 1-5 A plastic product cutting device with a centering structure includes a fixed plate 1. Four rectangular columns 2 are fixedly connected through the fixed plate 1. A top plate 3 is fixedly connected to the upper end of the four columns 2. A limiting mechanism for limiting the material is provided at the upper end of the fixed plate 1. The limiting mechanism includes a mounting plate 12 fixedly connected to the center of the upper end of the fixed plate 1. Two symmetrically arranged second slide rails 14 are fixedly connected to the upper end of the mounting plate 12. Two sliders 15 are slidably connected to each of the two second slide rails 14. An L-shaped plate 10 is fixedly connected between the two sliders 15 in the same horizontal direction. A rack 17 is fixedly connected to the lower end of each of the two L-shaped plates 10. A gear 16 is rotatably connected to the center of the upper end of the mounting plate 12. The two racks 17 are respectively arranged on both sides of the gear 16 and mesh with it. A second motor 18 is fixedly connected to the lower end of the fixed plate 1. The output shaft of the second motor 18 is fixedly connected to the lower end of the gear 16.

[0022] Specifically, the upper end of the fixed plate 1 is provided with a clamping mechanism for clamping the plate. The clamping mechanism includes two symmetrically arranged sliding grooves 9 opened on the upper end of the fixed plate 1. A movable block 6 is slidably connected in each of the two sliding grooves 9. A U-shaped plate 4 is fixedly connected to the upper end of each of the two movable blocks 6. A plurality of equally spaced rollers 11 are rotatably connected inside each of the two U-shaped plates 4.

[0023] Specifically, a double-threaded rod 13 is rotatably connected between the inner walls of the two ends of the two slide grooves 9. The double-threaded rod 13 passes through the two moving blocks 6 and is threadedly connected to them. A first motor 5 is fixedly connected to the side wall of the fixed plate 1. The output shaft end of the first motor 5 is fixedly connected to the end of the double-threaded rod 13. The threads at both ends of the double-threaded rod 13 are in opposite directions. When rotating, the two moving blocks 6 threadedly connected to it can move in opposite directions.

[0024] Specifically, the lower end of the top plate 3 is fixedly connected to a first slide rail 7, and a cutting machine 8 is slidably connected to the first slide rail 7. The first slide rail 7 is an electric slide rail, and the cutting machine 8 is equipped with an electric slider that can drive the cutting machine 8 to move.

[0025] In use, the plate is placed between the two U-shaped plates 4 on both sides. The output shaft of the second motor 18 is driven to rotate, which drives the double-headed threaded rod 13 to rotate, thereby driving the two threaded moving blocks 6 to move towards the center. This moves the U-shaped plates 4 towards the center and the multiple rollers 11 on both sides towards the center, clamping the plate. After clamping, the plate can still move horizontally, facilitating subsequent centering adjustment of the plate by the limiting mechanism. After clamping, the output shaft of the first motor 5 is driven to rotate, which drives the gear 16 to rotate, thereby driving the two meshing racks 17 to move. The racks 17 on both sides move towards the center, driving the L-shaped plates 10 on both sides towards the center, pushing the front and rear side walls of the plate, causing the plate to move towards the center, thus centering the plate and greatly improving the cutting accuracy in the later stages.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A plastic product cutting device with a centering structure, comprising a fixing plate (1), characterized in that, Four rectangular columns (2) are fixedly connected through the fixed plate (1). The upper ends of the four columns (2) are fixedly connected to a top plate (3). The upper end of the fixed plate (1) is provided with a limiting mechanism for limiting the plate. The limiting mechanism includes a mounting plate (12) fixedly connected to the center of the upper end of the fixed plate (1). The upper end of the mounting plate (12) is fixedly connected to two symmetrically arranged second slide rails (14). Two sliders (15) are slidably connected to each of the two second slide rails (14). An L-shaped plate (10) is fixedly connected between the two sliders (15) in the same horizontal direction. The lower end of the mounting plate (10) is fixedly connected with a rack (17), and the upper center of the mounting plate (12) is rotatably connected with a gear (16). The two racks (17) are respectively set on both sides of the gear (16) and mesh with it. The upper end of the mounting plate (1) is provided with a clamping mechanism for clamping the plate. The clamping mechanism includes two symmetrically arranged sliding grooves (9) opened on the upper end of the mounting plate (1). The two sliding grooves (9) are slidably connected with moving blocks (6). The upper ends of the two moving blocks (6) are fixedly connected with U-shaped plates (4). The interiors of the two U-shaped plates (4) are rotatably connected with multiple equally spaced rollers (11).

2. The plastic product cutting device with a centering structure according to claim 1, characterized in that, The lower end of the fixed plate (1) is fixedly connected to a second motor (18), and the output shaft of the second motor (18) is fixedly connected to the lower end of the gear (16).

3. A plastic product cutting device with a centering structure according to claim 2, characterized in that, A double-ended threaded rod (13) is rotatably connected between the inner walls of the two ends of the two grooves (9), and the double-ended threaded rod (13) passes through the two moving blocks (6) and is threadedly connected to them.

4. A plastic product cutting device with a centering structure according to claim 3, characterized in that, A first motor (5) is fixedly connected to the side wall of the fixed plate (1), and the output shaft end of the first motor (5) is fixedly connected to the end of the double-threaded rod (13).

5. A plastic product cutting device with a centering structure according to claim 4, characterized in that, The lower end of the top plate (3) is fixedly connected to a first slide rail (7), and a cutting machine (8) is slidably connected to the first slide rail (7).