Bag corner integral cutting device

The combination of pressure bar and positioning plate solves the problem of inaccurate bag positioning, enabling efficient and flat batch cutting of bag corners and improving the positioning and efficiency of the cutting device.

CN224276472UActive Publication Date: 2026-05-26JIANGYIN OULAITE COLOR PRINTING

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGYIN OULAITE COLOR PRINTING
Filing Date
2025-06-27
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing cutting devices have poor bag positioning, which makes stacked bags prone to slipping, affecting the flatness of the bag corner cutting and the efficiency of batch processing.

Method used

The system employs a combination of pressure bars and positioning plates. The pressure bars compress the bags longitudinally to form a stack, while the positioning plates position the bags laterally. Combined with cylinder control of the lifting plate and cutter movement, this ensures accurate positioning and cutting of the bag corners.

Benefits of technology

It enables accurate positioning and batch cutting of the bag body, improves the flatness of the bag corners and cutting efficiency, and reduces production costs.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224276472U_ABST
    Figure CN224276472U_ABST
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Abstract

The utility model relates to a whole bag corner cutting device which comprises a rack, a workbench, a driving piece, a lifting plate, a cutter, a pressing rod, two positioning plates and a scrap collecting frame. The driving piece is connected with the lifting plate through the rack. The cutter and the pressing rod are both located at the bottom of the lifting plate. The distance between the pressing rod and the workbench is smaller than the distance between the cutter and the workbench. A spring is arranged between the pressing rod and the lifting plate; the arrangement positions of the two positioning plates are matched with the whole cutting positions of bag corners of a cut bag body. The workbench is provided with a chip collecting groove, and the chip collecting frame is located below the chip collecting groove. The utility model has the advantages that: (1) the compression bar compresses the stacked bag bodies from the longitudinal direction, and the two positioning plates position the bag bodies from the transverse direction, so that the stacked bag bodies are prevented from slipping and misplacing, and the smoothness of fillets is not influenced; and (2) the structure is simple, the manufacturing cost is low, batch positioning and integral cutting of the bag bodies can be realized, and the integral cutting efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of bag processing technology, and in particular to a bag corner trimming device. Background Technology

[0002] In bag manufacturing lines, after bag production is complete, the corners of the bags need to be rounded according to process and usage requirements. To achieve mass production, stacked bags need to be rounded simultaneously. However, existing rounding devices have poor positioning of the bags, causing stacked bags to slip and resulting in uneven stacking, which affects the flatness of the rounded corners.

[0003] Therefore, it is necessary to further improve the structure of the existing cutting equipment to address the problem of poor batch cutting results. Utility Model Content

[0004] The purpose of this invention is to provide a bag corner trimming device, which can improve the quality and efficiency of mass bag trimming.

[0005] To achieve the above-mentioned utility model objectives, this utility model provides a bag corner trimming device, including a frame, a worktable, a drive unit, a lifting plate, a cutter, a pressure rod, two positioning plates, and a chip collection frame;

[0006] The frame is located on the worktable, the drive unit is connected to the lifting plate through the frame, and the cutter and the pressure rod are both located at the bottom of the lifting plate; the distance between the pressure rod and the worktable is smaller than the distance between the cutter and the worktable;

[0007] The lifting plate is provided with a connection port, the pressure rod is provided with a connecting rod, the connecting rod passes through the connection port, and a spring is provided between the pressure rod and the lifting plate;

[0008] The two positioning plates are located below the lifting plate, and the positions of the two positioning plates are adapted to the cut position of the bag corner of the bag body being cut. The cutter and the pressure bar are both located between the two positioning plates.

[0009] The workbench is equipped with a chip collection groove, and the chip collection frame is located below the chip collection groove.

[0010] Preferably, the frame is provided with a guide rod, and the lifting plate is connected to the guide rod.

[0011] Preferably, the pressure bar is a silicone pressure bar.

[0012] As a further improvement to the utility model, the workbench is provided with a textured cloth.

[0013] As a further improvement of the utility model, the positioning plate is provided with a mounting part, which is connected to the workbench by a first fastener.

[0014] As a further improvement of the utility model, the chip collection frame is provided with a connecting plate on its side, and the bottom of the workbench is provided with a rotating shaft. The workbench is connected to a buckle through the rotating shaft, and the buckle fastens the connecting plate to the bottom of the workbench.

[0015] As a further improvement of the utility model, the end of the cutter is provided with a mounting plate, and a second fastener detachably connects the mounting plate to the lifting plate.

[0016] This utility model discloses a bag corner trimming device. The two sides of the stacked bags to be cut are pressed against the sides of two positioning plates, and the bag corners are positioned between the top edges of the two positioning plates, thus positioning the bag corners directly below the cutter. The driving component can be an existing cylinder. The cylinder controls the lowering of the lifting plate. Since the initial height of the cutter is higher than the initial height of the pressure rod, the pressure rod presses against the top of the stacked bags, positioning the bags and preventing displacement. As the lifting plate continues to descend, the spring connected to the pressure rod is compressed, and the falling cutter cuts off the bag corner directly below. After the corner is cut, the cylinder controls the cutter to reset, and the pressure rod, after leaving the bag, resets via the spring.

[0017] The advantages of this bag corner trimming device compared to existing technologies are as follows:

[0018] (1) The pressure bar presses the bag body longitudinally to form a stack, and the two positioning plates position the bag body laterally to prevent the stacked bag body from slipping and misaligning, which would affect the flatness of the rounded corners;

[0019] (2) The structure is simple and the production cost is low. It can realize the batch positioning and cutting of the bag body and improve the cutting efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a bag corner trimming device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of a bag corner trimming device according to the present invention;

[0022] Figure 3 This is a schematic diagram of the cutter and pressure bar structure;

[0023] Figure 4 This is a schematic diagram of the chip collection frame connection structure. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-2As shown, the present invention provides a bag corner trimming device, comprising a frame 1, a worktable 2, a drive unit 3, a lifting plate 4, a cutter 5, a pressure rod 6, two positioning plates 7, and a chip collection frame 8.

[0026] The frame 1 is located on the workbench 2. The drive unit 3 is connected to the lifting plate 4 through the frame 1. The cutter 5 and the pressure rod 6 are both located at the bottom of the lifting plate 4. The distance between the pressure rod 6 and the workbench 2 is smaller than the distance between the cutter 5 and the workbench 2.

[0027] like Figure 3 As shown, the lifting plate 4 is provided with a connection port 41, the pressure rod 6 is provided with a connecting rod 61, the connecting rod 61 passes through the connection port 41, and a spring 62 is provided between the pressure rod 6 and the lifting plate 4;

[0028] Two positioning plates 7 are located below the lifting plate 4. The positions of the two positioning plates 7 are adapted to the cutting positions of the bag corners of the bag body being cut. The cutter 5 and the pressure bar 6 are both located between the two positioning plates 7.

[0029] like Figure 4 As shown, the workbench 2 is provided with a chip collection groove 21, and the chip collection frame 8 is located below the chip collection groove 21.

[0030] This utility model discloses a bag corner trimming device. The two sides of the stacked bags to be cut are pressed against the sides of two positioning plates 7, and the bag corners are locked between the top edges of the two positioning plates 7, that is, the bag corners are positioned directly below the cutter 5. The driving component 3 can be an existing cylinder. The cylinder controls the lifting plate 4 to descend. Since the initial height of the cutter 5 is higher than the initial height of the pressure rod 6, the pressure rod 6 presses against the top of the stacked bags to position the bags and prevent the stacked bags from shifting. As the lifting plate 4 continues to descend, the spring 62 connected to the pressure rod 6 is compressed, and the falling cutter 5 cuts off the bag corner directly below. After the corner is cut, the cylinder controls the cutter 5 to reset, and the pressure rod 6 resets after leaving the bag through the spring 62.

[0031] The frame 1 is equipped with a guide rod 11, and the lifting plate 4 is connected to the guide rod 11. The lifting plate 4 moves in a straight line along the guide rod 11 to prevent the cutter 5 from shifting and affecting the cutting effect.

[0032] The pressure bar 6 is preferably a silicone pressure bar, which avoids damaging the surface of the bag while ensuring the positioning effect.

[0033] The workbench 2 is equipped with a textured baffle 22. The bags are placed on the baffle 22, which increases the friction between the bags and the workbench 2 and prevents the stacked bags from slipping on the workbench 2 after being held down by the pressure bar 6, thus affecting the quality of the batch cutting of the bags.

[0034] The positioning plate 7 is provided with a mounting part 71, which is connected to the worktable 2 by a first fastener 72. According to the size of the bag and the cutting size, the position of the two positioning plates 7 can be quickly adjusted by the first fastener 72 to improve the applicability of bag positioning.

[0035] The chip collection frame 8 has a connecting plate 81 on its side, and the bottom of the worktable 2 has a rotating shaft 24. The worktable 2 is connected to a buckle 23 via the rotating shaft 24, and the buckle 23 secures the connecting plate 81 to the bottom of the worktable 2. The waste chips cut off during the whole cutting process fall from the chip collection trough 21 into the chip collection frame 8. The chip collection frame 8 can be removed by rotating the buckle 23 for easy cleaning of the waste chips in the chip collection frame 8.

[0036] The end of the cutter 5 is provided with a mounting plate 51, and a second fastener 52 detachably connects the mounting plate 51 to the lifting plate 4. The cutter 5 can be quickly replaced by the second fastener 52 to meet the needs of cutting bag corners of different sizes and shapes.

[0037] The preferred embodiments of this utility model have been described in detail above, but this utility model is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A bag corner trimming device, characterized in that, It includes a frame, worktable, drive unit, lifting plate, cutter, pressure bar, two positioning plates, and chip collection frame; The frame is located on the worktable, the drive unit is connected to the lifting plate through the frame, and the cutter and the pressure rod are both located at the bottom of the lifting plate; the distance between the pressure rod and the worktable is smaller than the distance between the cutter and the worktable; The lifting plate is provided with a connection port, the pressure rod is provided with a connecting rod, the connecting rod passes through the connection port, and a spring is provided between the pressure rod and the lifting plate; The two positioning plates are located below the lifting plate, and the positions of the two positioning plates are adapted to the cut position of the bag corner of the bag body being cut. The cutter and the pressure bar are both located between the two positioning plates. The workbench is equipped with a chip collection groove, and the chip collection frame is located below the chip collection groove.

2. The bag corner trimming device as described in claim 1, characterized in that, The frame is equipped with a guide rod, and the lifting plate is connected to the guide rod.

3. The bag corner trimming device as described in claim 1, characterized in that, The pressure bar is a silicone pressure bar.

4. The bag corner trimming device as described in claim 1, characterized in that, The workbench is equipped with a textured cloth.

5. The bag corner trimming device as described in claim 1, characterized in that, The positioning plate is provided with a mounting part, which is connected to the workbench by a first fastener.

6. The bag corner trimming device as described in claim 1, characterized in that, The chip collection frame has a connecting plate on its side, and the bottom of the workbench has a rotating shaft. The workbench is connected to a buckle through the rotating shaft, and the buckle fastens the connecting plate to the bottom of the workbench.

7. The bag corner trimming device as described in claim 1, characterized in that, The end of the cutter is provided with a mounting plate, and a second fastener detachably connects the mounting plate to the lifting plate.