Edge cutting tool for food packaging bag
By designing a support plate and positioning components, the problem of the inability to adjust the cutter position in existing technologies is solved, achieving flexibility and cutting precision in the food packaging bag trimming fixture, and meeting the trimming needs of packaging bags of different sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO ERIC PACKING CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-04-24
AI Technical Summary
The cutting position of the existing food packaging bag trimming fixture cannot be adjusted, resulting in cumbersome cutting operations and making it difficult to meet the flexible trimming needs of packaging bags of different sizes.
A food packaging bag trimming fixture including a cutting component and a positioning component was designed. By sliding the support plate and controlling the horizontal displacement of the third cylinder, the positions of the cutter and the pressure plate can be flexibly adjusted. The positioning component locks the placement table in place to ensure cutting accuracy.
It enables convenient edge trimming of packaging bags of different sizes, improves cutting accuracy and operational flexibility, and avoids displacement deviation of packaging bags during the cutting process.
Smart Images

Figure CN224159008U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of edge trimming tooling technology, specifically an edge trimming tooling for food packaging bags. Background Technology
[0002] Food packaging bags are a type of packaging design. In daily life, product packaging bags were created to facilitate the preservation and storage of food. With the increasing awareness of environmental protection, people now prefer to use paper packaging bags. Paper packaging bags are mostly made by folding the packaging paper into a bag shape and then sealing it. During the production process, the edges of the packaging bag often need to be trimmed to prevent deviations during folding due to uneven edges.
[0003] An investigation revealed that a Chinese utility model patent (publication number: CN220720465U) discloses a cutting fixture for food packaging bags. The fixture includes a worktable with a hollow housing. A first cylinder and a second cylinder are respectively mounted on the top of the housing. The first cylinder is connected to a first telescopic rod, one end of which is connected to a pressure plate located inside the housing. Symmetrical cutting grooves are arranged on the left and right sides of the inner wall of the housing. The second cylinder is connected to a second telescopic rod, one end of which is connected to a cutter. Both ends of the cutter are located within the cutting grooves. A first sliding block is mounted on the worktable, with its top connected to a packaging bag placement platform. The platform is connected to a push rod. By using a pressure plate and controlling its movement up and down with the first cylinder, the fixture can press down on the paper packaging bag located below it. The cutter then cuts off the excess edges of the packaging bag, thus achieving the cutting of the paper packaging bag.
[0004] Although the aforementioned patent achieves the removal of excess edges and corners of packaging bags through the cooperation of a pressure plate and a cutter, the position of the cutter cannot be adjusted horizontally or backward. As a result, the packaging bag needs to be precisely positioned before the cutting depth can be flexibly adjusted. This makes the operation too cumbersome and inconvenient for cutting edges of packaging bags of different sizes.
[0005] Therefore, this utility model provides a cutting tool for food packaging bags to solve the above problems. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] This utility model provides a cutting tool for food packaging bags, which aims to solve the problems mentioned in the background art.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, this utility model provides the following technical solution: a food packaging bag trimming fixture, comprising a cutting assembly, the cutting assembly comprising a cutting box, a sliding groove being provided on the upper part of the cutting box, and a support shaft being fixedly connected to the inner wall of the sliding groove, a support cross plate being slidably connected to the outer side of the support shaft, a first cylinder and a second cylinder being fixedly connected to the upper surface of the support cross plate, a cutter being fixedly connected to the lifting end of the first cylinder, a pressure plate being fixedly connected to the lifting end of the second cylinder, and a third cylinder being fixedly connected to the upper surface of the cutting box, and a support cross plate being fixedly connected to the lifting end of the third cylinder;
[0010] A placement table, which is slidably connected to the inside of the cutting box via a slide rail;
[0011] A positioning component is disposed inside the cutting box and is used for abutment positioning of the placement table.
[0012] As a preferred technical solution of this application, the width of the sliding groove is at least twice the width of the supporting horizontal plate, and a supporting shaft slides through both sides of the supporting horizontal plate, and the length of the sliding groove is equal to the length of the supporting horizontal plate.
[0013] As a preferred technical solution of this application, the first cylinder and the second cylinder are used for the vertical displacement of the cutter and the pressure plate, respectively, and the third cylinder is used to support the horizontal displacement of the horizontal plate by pushing and pulling, and the cutter is attached to the front of the pressure plate.
[0014] As a preferred technical solution of this application, the slide rail is provided in two sets, and the two sets of slide rail are respectively located on the bottom sides of the placement table. The slide rail is used for sliding support of the placement table, and the cutting box is provided with a limit baffle on the front of the slide rail. The front of the placement table is fixedly connected with a handle, and the lower surface of the end of the placement table away from the handle has an arc-shaped structure.
[0015] As a preferred technical solution of this application, the positioning component includes a control plate, with locking blocks fixedly connected to the upper surfaces of both ends of the control plate, and a telescopic rod fixedly connected to the bottom of the control plate. A spring is sleeved on the outside of the telescopic rod, and the bottom of the telescopic rod abuts against a base plate, which is fixedly connected to the lower surface of the cutting box.
[0016] As a preferred technical solution of this application, the slide rail and the cutting box are provided with limit grooves at the corresponding control plate, the upper surface of the locking block is inclined, and the two sets of telescopic rods and springs are symmetrically distributed on both sides of the bottom of the control plate.
[0017] (III) Beneficial Effects
[0018] The beneficial effects of this application are as follows:
[0019] 1. This utility model uses a sliding installation of a support plate and a third cylinder to precisely control the horizontal pushing and pulling of the support plate, which allows for flexible adjustment of the position of the cutter and pressure plate. This makes it easier to cut the edges of packaging bags of different sizes. After pushing the packaging bag to the deepest part of the cutting box, the position of the cut edge can be precisely and conveniently adjusted by adjusting the position of the cutter and pressure plate.
[0020] 2. By setting up a positioning component, this utility model can push the placement platform into the cutting box and then lock it in place, thereby ensuring the stability of the placement platform's position and preventing displacement during the cutting of the packaging bag, thus improving the cutting accuracy of the packaging bag. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of the present utility model;
[0022] Figure 2 This is a schematic cross-sectional view of the third cylinder axis of this utility model;
[0023] Figure 3 This is a schematic cross-sectional view of the spring axis structure of this utility model;
[0024] Figure 4 For the present utility model Figure 3 A magnified structural diagram of A in the middle;
[0025] Figure 5 This is a partial exploded view of the positioning component of this utility model.
[0026] In the picture:
[0027] 1. Cutting assembly; 11. Cutting box; 12. Sliding groove; 13. Support shaft; 14. Support cross plate; 15. First cylinder; 16. Second cylinder; 17. Cutting blade; 18. Pressure plate; 19. Third cylinder; 2. Placement table; 21. Slide rail; 22. Handle; 3. Positioning assembly; 31. Control panel; 32. Clamping block; 33. Telescopic rod; 34. Spring; 35. Base plate. Detailed Implementation
[0028] 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.
[0029] like Figure 1-5As shown, this utility model provides a food packaging bag trimming fixture, including a cutting assembly 1, which includes a cutting box 11. A sliding groove 12 is provided on the upper part of the cutting box 11, and a support shaft 13 is fixedly connected to the inner wall of the sliding groove 12. A support cross plate 14 is slidably connected to the outer side of the support shaft 13. A first cylinder 15 and a second cylinder 16 are fixedly connected to the upper surface of the support cross plate 14. A cutter 17 is fixedly connected to the lifting end of the first cylinder 15, and a pressure plate 18 is fixedly connected to the lifting end of the second cylinder 16. A third cylinder 19 is fixedly connected to the upper surface of the cutting box 11, and the support cross plate 14 is fixedly connected to the lifting end of the third cylinder 19. A placement table 2 is slidably connected to the cutting box via a slide rail 21. Inside the cutting box 11; positioning component 3, the positioning component 3 is set inside the cutting box 11 and is used for the abutment positioning of the placement table 2. When trimming the packaging bag, the packaging bag is first placed on the placement table 2, and one side of the packaging bag is aligned with the last side of the placement table 2. Then, by pushing the placement table 2, the placement table 2 is moved into the inside of the cutting box 11, while ensuring that the back side of the packaging bag is in contact with the inner wall of the cutting box 11. The positions of the cutter 17 and the pressure plate 18 are further adjusted according to the size of the packaging bag. By pressing down the first cylinder 15 and the second cylinder 16, the packaging bag is first pressed and limited by the pressure plate 18, and then the cutting blade 17 is pressed down to achieve the trimming of the packaging bag.
[0030] Furthermore, the width of the sliding groove 12 is at least twice the width of the supporting horizontal plate 14, and a supporting shaft 13 slides through both sides of the supporting horizontal plate 14. The length of the sliding groove 12 is equal to the length of the supporting horizontal plate 14, which facilitates the horizontal sliding adjustment of the supporting horizontal plate 14, thereby enabling the device to be adapted to different sizes of packaging bags for edge trimming.
[0031] Furthermore, the first cylinder 15 and the second cylinder 16 are used for the vertical displacement of the cutter 17 and the pressure plate 18, respectively, and the third cylinder 19 is used to support the horizontal displacement of the horizontal plate 14 by pushing and pulling. The cutter 17 is attached to the front of the pressure plate 18. The horizontal movement of the supporting horizontal plate 14 can be precisely controlled by the pulling control of the third cylinder 19, so that the positions of the cutter 17 and the pressure plate 18 can be flexibly adjusted to meet the needs of convenient edge cutting for different packaging bags.
[0032] Furthermore, two sets of slide rails 21 are provided, and the two sets of slide rails 21 are respectively located on the bottom sides of the placement platform 2. The slide rails 21 are used for sliding support of the placement platform 2, and the cutting box 11 is provided with a limit baffle on the front of the slide rails 21. The front of the placement platform 2 is fixedly connected with a handle 22. The lower surface of the end of the placement platform 2 away from the handle 22 has an arc-shaped structure. The slide rails 21 facilitate the horizontal displacement support of the placement platform 2. At the same time, the handle 22 facilitates manual control of the placement platform 2. In order to improve the stability of the packaging bag placement, a displacement clamp can be provided on the upper surface of the placement platform 2 to provide auxiliary limit on both sides of the packaging bag.
[0033] Furthermore, the positioning component 3 includes a control plate 31. Engaging blocks 32 are fixedly connected to the upper surfaces of both ends of the control plate 31. A telescopic rod 33 is fixedly connected to the bottom of the control plate 31. A spring 34 is sleeved on the outside of the telescopic rod 33, and the bottom of the telescopic rod 33 abuts against a base plate 35. The base plate 35 is fixedly connected to the lower surface of the cutting box 11. Limiting grooves are formed in the slide rail 21 and the cutting box 11 corresponding to the control plate 31. The upper surface of the engaging block 32 is inclined. Two sets of telescopic rods 33 and springs 34 are symmetrically distributed on the control plate 31. On both sides of the bottom, the bottom arc structure of the placement platform 2 contacts the locking block 32 in an inclined manner when it is pushed forward, so that the locking block 32 is pressed down and the placement platform 2 can pass through. When the placement platform 2 has completely passed the locking block 32, the control plate 31 is elastically supported by the spring 34, which causes the locking block 32 to move upward, so that the edge of the placement platform 2 can be abutted and positioned. At this time, the rear side of the placement platform 2 contacts the inner wall of the cutting box 11, thus completing the locking and positioning of the placement platform 2 and avoiding the displacement of the placement platform 2 that would cause the packaging bag to be cut off.
[0034] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A tooling for trimming edges of food packaging bags, characterized in that: The cutting assembly includes a cutting box (11), which has a sliding groove (12) on its upper part. A support shaft (13) is fixedly connected to the inner wall of the sliding groove (12). A support plate (14) is slidably connected to the outside of the support shaft (13). A first cylinder (15) and a second cylinder (16) are fixedly connected to the upper surface of the support plate (14). A cutter (17) is fixedly connected to the lifting end of the first cylinder (15). A pressure plate (18) is fixedly connected to the lifting end of the second cylinder (16). A third cylinder (19) is fixedly connected to the upper surface of the cutting box (11). The support plate (14) is fixedly connected to the lifting end of the third cylinder (19). Placement table (2), which is slidably connected to the inside of the cutting box (11) via slide rail (21); Positioning component (3) is disposed inside the cutting box (11) and is used for abutment positioning of the placement table (2).
2. The food packaging bag trimming fixture according to claim 1, characterized in that: The width of the sliding groove (12) is at least twice the width of the supporting horizontal plate (14), and a supporting shaft (13) slides through both sides of the supporting horizontal plate (14). The length of the sliding groove (12) is equal to the length of the supporting horizontal plate (14).
3. The food packaging bag trimming fixture according to claim 2, characterized in that: The first cylinder (15) and the second cylinder (16) are used for the vertical displacement of the cutter (17) and the pressure plate (18), respectively. The third cylinder (19) is used to support the horizontal displacement of the horizontal plate (14). The cutter (17) is attached to the front of the pressure plate (18).
4. The food packaging bag trimming fixture according to claim 1, characterized in that: There are two sets of slide rails (21), and the two sets of slide rails (21) are respectively located on the bottom sides of the placement platform (2). The slide rails (21) are used for sliding support of the placement platform (2), and the cutting box (11) is provided with a limit baffle on the front of the slide rails (21). The front of the placement platform (2) is fixedly connected with a handle (22), and the lower surface of the end of the placement platform (2) away from the handle (22) has an arc-shaped structure.
5. The food packaging bag trimming fixture according to claim 1, characterized in that: The positioning component (3) includes a control plate (31), with locking blocks (32) fixedly connected to the upper surfaces of both ends of the control plate (31), and a telescopic rod (33) fixedly connected to the bottom of the control plate (31). A spring (34) is sleeved on the outside of the telescopic rod (33), and the bottom of the telescopic rod (33) abuts against a base plate (35). The base plate (35) is fixedly connected to the lower surface of the cutting box (11).
6. The food packaging bag trimming fixture according to claim 5, characterized in that: The slide rail (21) and the cutting box (11) have limit grooves at the corresponding control plate (31). The upper surface of the locking block (32) is inclined. The two sets of telescopic rods (33) and springs (34) are symmetrically distributed on both sides of the bottom of the control plate (31).
Citation Information
Patent Citations
Edge cutting tool for food packaging bag
CN220720465U