A waste edge cutting device for preservative bag production

By designing an adjustable carriage and cutting blade position waste edge removal device, the problem of poor applicability of existing equipment is solved, achieving flexible cutting and waste edge collection.

CN224476656UActive Publication Date: 2026-07-10SHANGHAI FUMING NEW MATERIAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI FUMING NEW MATERIAL TECH CO LTD
Filing Date
2025-06-11
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing mechanical cutting equipment is difficult to adjust flexibly according to the width and thickness of different sizes of food storage bags, resulting in poor cutting applicability.

Method used

A waste edge removal device is designed, comprising a base, a bracket, a carriage, a cutting component, and a drive component. The height of the carriage is adjusted by a screw and a handwheel, and the position of the cutting blade is adjusted by a combination of a sliding rod and a sliding seat. Waste edges are collected by a combination of a roller and a guide hopper.

Benefits of technology

It enables flexible adjustment of cutting according to the size of the food storage bag, avoids the accumulation of waste edges, and improves the accuracy and efficiency of cutting.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waste edge cutting device for preservative bag production, including base, be equipped with the support on the base, the inner side wall sliding of support is equipped with the sliding frame, be equipped with cutting piece on the sliding frame, be equipped with the driving piece of the drive sliding frame up and down on the support, the below of cutting piece is equipped with the godet, the both ends of godet are rotated and are equipped with the support on the support. The utility model belongs to waste edge cutting device technical field, and specifically refers to a waste edge cutting device for preservative bag production.
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Description

Technical Field

[0001] This utility model belongs to the technical field of waste edge trimming devices, specifically referring to a waste edge trimming device for the production of food preservation bags. Background Technology

[0002] In continuous food storage bag production lines, after rolls of plastic film are heat-sealed and cold-cut (or heat-cut) to form individual bags, excess waste edges (flashes) are usually left on both sides due to the heat-sealing or cutting molds. If these waste edges are not removed in time, they will affect the appearance of the bag, increase the packaging volume, cause material waste, and even affect subsequent packaging or use.

[0003] Existing mechanical cutting equipment often has a relatively fixed structure, making it difficult to flexibly adjust to the width and thickness of different sizes of food storage bags, resulting in poor cutting applicability. Utility Model Content

[0004] The technical problem this invention aims to solve is that some existing mechanical cutting equipment often have a relatively fixed structure, making it difficult to flexibly adjust to the width and thickness of different specifications of food storage bags, resulting in poor cutting applicability.

[0005] To achieve the above functions, the technical solution adopted by this utility model is as follows: a waste edge cutting device for the production of food preservation bags, including a base, a support on the base, a slide rail slidably provided on the inner side wall of the support, a cutting component on the slide rail, a driving component on the support to drive the slide rail to move up and down, a support roller below the cutting component, and the two ends of the support roller rotatably mounted on the support.

[0006] Preferably, the driving component includes a screw, a nut is passed through the top of the bracket, the screw is threadedly connected to the nut and its bottom end is rotatably mounted on the top wall of the carriage via a bearing, and a handwheel is provided at the top of the screw.

[0007] Preferably, the cutting component includes a slide rod, a slide block, and a cutting blade. The slide block has a U-shaped structure, and a limiting rod is provided between the inner side walls of the slide block. The two ends of the slide rod are fixed to the inner side walls of the slide block. The top of the slide block is slidably mounted on the slide rod and the limiting rod. The cutting blade is rotatably mounted on the bottom of the slide block. A drive motor is provided on the side wall of the slide block, and the output end of the drive motor rotates through the slide block and is connected to the cutting blade.

[0008] Preferably, the slide block is threaded with a fastening bolt, the end of which is pressed against the side wall of the slide rod.

[0009] Preferably, a guide hopper is provided below the idler roller, the side wall of the guide hopper is provided with a support leg fixed to the base, the bottom of the guide hopper is provided with a discharge port, and the base is provided with an opening that matches the discharge port.

[0010] Preferably, the top wall of the base is provided with a support plate, and guide rollers are rotatably arranged between the support plates.

[0011] Preferably, the bottom ends of the bracket are provided with U-shaped frames fixed to the base.

[0012] The beneficial effects achieved by adopting the above-described structure are as follows:

[0013] 1. By setting the screw, nut and handwheel structure in the drive unit, the operator can easily adjust the height of the carriage, thereby controlling the distance between the cutting part and the roller, and adapting to the cutting needs of food storage bags of different thicknesses.

[0014] 2. The cutting component adopts a combination design of sliding rod, sliding base and cutting blade. The sliding base can slide flexibly on the sliding rod and the limiting rod, which makes it easy to adjust the position of the cutting blade according to the width of the plastic bag. The fastening bolt can firmly fix the sliding base to ensure accurate positioning during the cutting process and avoid deviation.

[0015] 3. The guide hopper located below the idler roller can collect the waste edges generated during cutting in a timely manner. The waste edges are discharged through the discharge port and the opening on the base, effectively preventing the waste edges from accumulating and tangling. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 3 ;

[0019] Figure 4 This is a usage diagram of an embodiment of the present utility model.

[0020] Among them, 1. base, 2. bracket, 3. slide, 4. cutting part, 5. driving part, 6. roller, 7. screw, 8. nut, 9. handwheel, 10. slide rod, 11. slide seat, 12. cutting blade, 13. limit rod, 14. drive motor, 15. fastening bolt, 16. guide hopper, 17. support leg, 18. discharge port, 19. opening, 20. support plate, 21. guide roller, 22. U-shaped frame. Detailed Implementation

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should 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 application based on the specific circumstances.

[0023] like Figure 1-4 As shown, the present invention proposes a waste edge trimming device for the production of food preservation bags, including a base 1, a support plate 20 on the top wall of the base 1, a guide roller 21 rotatably arranged between the support plates 20, a bracket 2 on the base 1, U-shaped frames 22 fixed to the base 1 at both ends of the bottom of the bracket 2, a slide 3 slidably arranged on the inner side wall of the bracket 2, a cutting component 4 arranged on the slide 3, a driving component 5 on the bracket 2 to drive the slide 3 to move up and down, a support roller 6 arranged below the cutting component 4, the two ends of the support roller 6 rotatably arranged on the bracket 2, after the food preservation bag is heat-sealed, it passes over the support roller 6, and the driving component 5 can drive the cutting component 4 to move down and approach the support roller 6, so that the food preservation bag is trimmed by the cutting component 4 during the movement.

[0024] like Figure 2-3 As shown, the driving component 5 includes a screw 7, and a nut 8 passes through the top of the bracket 2. The screw 7 is threadedly connected to the nut 8 and its bottom end is rotatably mounted on the top wall of the slide 3 via a bearing. A handwheel 9 is provided at the top of the screw 7. Rotating the handwheel 9 drives the screw 7 to rotate, which in turn drives the slide 3 to move up and down to adjust the height of the cutting component 4 according to the specifications of the food storage bag.

[0025] like Figure 2As shown, the cutting component 4 includes a slide rod 10, a slide base 11, and a cutting blade 12. The slide frame 3 has a U-shaped structure. A limiting rod 13 is provided between the inner side walls of the slide frame 3. The two ends of the slide rod 10 are fixed to the inner side walls of the slide frame 3. The top of the slide base 11 is slidably mounted on the slide rod 10 and the limiting rod 13. The cutting blade 12 is rotatably mounted on the bottom of the slide base 11. A drive motor 14 is provided on the side wall of the slide base 11. The output end of the drive motor 14 rotates through the slide base 11 and is connected to the cutting blade 12. When the drive motor 14 is started, the cutting blade 12 is driven to rotate, and the edge of the fresh food bag on the roller 6 is cut.

[0026] like Figure 3 As shown, a fastening bolt 15 is threaded onto the slide block 11. The end of the fastening bolt 15 presses against the side wall of the slide rod 10. Loosening the fastening bolt 15 can adjust the position of the slide block 11, thereby adjusting the position of the cutting blade 12 to adjust the cutting edge position according to the width of the plastic bag.

[0027] like Figure 3 As shown, a guide hopper 16 is provided below the idler roller 6, and a support leg 17 fixed to the base 1 is provided on the side wall of the guide hopper 16. A discharge port 18 is provided at the bottom of the guide hopper 16, and an opening 19 matching the discharge port 18 is provided on the base 1.

[0028] In practical use, first, according to the thickness of the plastic bag to be cut, turn the handwheel 9 to drive the screw 7 to rotate. Through the threaded engagement between the screw 7 and the nut 8, the slide 3 moves up and down along the inner wall of the support 2, adjusting the cutting piece 4 to a suitable height position. Then, according to the width of the plastic bag, loosen the fastening bolt 15 on the slide 11, slide the slide 11 on the slide rod 10 and the limit rod 13, adjust the cutting blade 12 to the corresponding position, and then tighten the fastening bolt 15 to fix the slide 11.

[0029] The food storage bag to be cut is guided by the guide roller 21 and smoothly transported to the top of the support roller 6. The drive motor 14 is started, and the drive motor 14 drives the cutting blade 12 to rotate at high speed. As the food storage bag moves, the cutting blade 12 cuts the waste edge of the food storage bag. The cut waste edge falls into the guide hopper 16 below and is discharged and collected through the discharge port 18 and the opening 19 on the base 1.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A waste edge trimming device for the production of food preservation bags, characterized in that: Includes a base (1), on which a bracket (2) is provided, and a slide (3) is slidably provided on the inner side wall of the bracket (2). A cutting component (4) is provided on the slide (3), and a driving component (5) is provided on the bracket (2) to drive the slide (3) to move up and down. A roller (6) is provided below the cutting component (4), and both ends of the roller (6) are rotatably mounted on the bracket (2).

2. The waste edge trimming device for producing food preservation bags according to claim 1, characterized in that: The driving component (5) includes a screw (7), and a nut (8) passes through the top of the bracket (2). The screw (7) is threadedly connected to the nut (8) and its bottom end is rotatably mounted on the top wall of the slide (3) via a bearing. A handwheel (9) is provided at the top of the screw (7).

3. The waste edge trimming device for producing food preservation bags according to claim 1, characterized in that: The cutting component (4) includes a slide rod (10), a slide block (11), and a cutting blade (12). The slide frame (3) is U-shaped. A limiting rod (13) is provided between the inner side walls of the slide frame (3). The two ends of the slide rod (10) are fixed on the inner side walls of the slide frame (3). The top of the slide block (11) is slidably disposed on the slide rod (10) and the limiting rod (13). The cutting blade (12) is rotatably disposed on the bottom of the slide block (11). A drive motor (14) is provided on the side wall of the slide block (11). The output end of the drive motor (14) rotatably passes through the slide block (11) and is connected to the cutting blade (12).

4. The waste edge trimming device for producing food preservation bags according to claim 3, characterized in that: The slide block (11) is threaded with a fastening bolt (15), the end of which is pressed against the side wall of the slide rod (10).

5. The waste edge trimming device for producing food preservation bags according to claim 1, characterized in that: The guide hopper (16) is provided below the roller (6), and the side wall of the guide hopper (16) is provided with a support leg (17) fixed to the base (1). The bottom of the guide hopper (16) is provided with a discharge port (18), and the base (1) is provided with an opening (19) that matches the discharge port (18).

6. The waste edge trimming device for producing food preservation bags according to claim 1, characterized in that: The top wall of the base (1) is provided with a support plate (20), and guide rollers (21) are rotatably provided between the support plates (20).

7. The waste edge trimming device for producing food preservation bags according to claim 1, characterized in that: The bottom ends of the bracket (2) are provided with U-shaped frames (22) fixed on the base (1).