Environment-friendly slitting device for food packaging bag processing

By introducing a guide structure consisting of a fixed plate, a rotating rod, and an L-shaped plate into the slitting device, the problem of packaging bags deviating during the slitting process was solved. Furthermore, the design of hooks and T-shaped plates enabled quick replacement of the cutter, improving the slitting effect and the efficiency of the device.

CN224276465UActive Publication Date: 2026-05-26ZHEJIANG JINKE CHEM MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG JINKE CHEM MATERIALS CO LTD
Filing Date
2025-07-17
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing slitting devices are prone to deviation and blade wear during packaging bag processing, affecting the slitting effect, and blade replacement is inconvenient.

Method used

An environmentally friendly food packaging bag processing cutting device was designed. By setting a fixed plate, rotating rod, L-shaped plate and driving component, it ensures that the packaging belt does not deviate during the conveying process. The cutting blade can be quickly disassembled and replaced through the cooperation of mounting plate, hook, T-shaped plate and fixed component.

Benefits of technology

It effectively prevents packaging bags from deviating during the slitting process, ensuring slitting results, and allows for quick replacement of worn cutters, improving the efficiency of the slitting device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an environment-friendly slitting device for food packaging bag processing, and relates to the technical field of packaging bag slitting. The conveying device comprises a U-shaped frame in which a conveyor is fixedly mounted, and is characterized by further comprising a supporting plate, the supporting plate is fixedly mounted in the U-shaped frame, a disc is rotatably mounted on one side of the supporting plate, a motor is fixedly mounted on the other side of the supporting plate, an output shaft of the motor is coaxially connected with the disc, a cylinder is fixedly mounted on one side of the disc, and the cylinder is fixedly mounted on the other side of the supporting plate. According to the packaging belt guiding device, it is guaranteed that packaging belts with different widths can be guided, it is guaranteed that the packaging belts do not deviate when moving on a conveyor, it is guaranteed that the cut packaging bags are more regular, the cutter can be rapidly disassembled, the cutting efficiency is improved, and the packaging belt guiding device is suitable for popularization and application. And therefore, the abraded cutter can be polished or replaced, and the influence on the slitting effect of the packaging bag is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of packaging bag cutting technology, specifically to an environmentally friendly food packaging bag cutting device. Background Technology

[0002] In the packaging bag processing, slitting is a key process. Its function is to cut the large-area substrate that has undergone pre-processing such as printing and lamination into rolls of specific width or length according to production needs, so as to provide raw materials that meet the specifications for subsequent bag making processes.

[0003] Packaging bags come in various widths, and existing slitting devices use conveyors to transport and cut them. During transport, the bags are relatively light, which can cause the conveyor belt to deviate, leading to deviations during slitting. Furthermore, the cutters in existing slitting devices are not easy to replace, and prolonged use can cause them to wear down, resulting in dull cutters and affecting the slitting effect. Therefore, an environmentally friendly slitting device for food packaging bag processing is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide an environmentally friendly food packaging bag cutting device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] An environmentally friendly food packaging bag processing cutting device includes a U-shaped frame, a conveyor fixedly installed inside the U-shaped frame, and a support plate fixedly installed inside the U-shaped frame. A disc is rotatably mounted on one side of the support plate, and a motor is fixedly mounted on the other side of the support plate. The output shaft of the motor is coaxially connected to the disc. A cylinder is fixedly mounted on one side of the disc, and a movable plate is provided on the cylinder. An mounting plate is fixedly mounted on the bottom of the movable plate. Two hooks are fixedly mounted on one side of the mounting plate, and a T-shaped plate is inserted between the two hooks. A cutter is fixedly mounted on the bottom of the T-shaped plate. A fixing component for fixing the T-shaped plate is provided inside the T-shaped plate. Two fixing plates are fixedly mounted on the conveyor, and a rotating rod is rotatably mounted between the two fixing plates. Two L-shaped plates are slidably mounted on the rotating rod, and a driving component for driving the two L-shaped plates closer to or further apart is provided between the two fixing plates.

[0007] Furthermore, the fixing component includes two slides, both of which are formed within a T-shaped plate. Limiting blocks are slidably installed within the slides, with one end of each limiting block extending through the bottom of the slide to the outside and contacting a hook. A pull rod is slidably installed on the top of the T-shaped plate, with both ends of the pull rod extending into the two slides respectively. The two ends of the pull rod are tightly welded to the tops of the two limiting blocks respectively. Springs are fitted at both ends of the pull rod within the slides.

[0008] Furthermore, the two ends of the spring are tightly welded to the top of the limiting block and the top of the slide groove, respectively, and the two ends of the pull rod are slidably connected to the corresponding slide grooves, and the pull rod has a U-shaped structure.

[0009] Furthermore, the drive assembly includes a connecting plate, which is fixedly installed between two fixed plates. A groove is provided at the bottom of the connecting plate, and a bidirectional threaded rod is rotatably installed in the groove. Two sliders are slidably installed in the groove and on the bidirectional threaded rod, and the two sliders are respectively fixedly connected to two L-shaped plates. One end of the connecting plate passes through the two L-shaped plates, and one end of the bidirectional threaded rod passes through one side of the groove and one of the fixed plates and is fixedly installed with a handle.

[0010] Furthermore, the bidirectional threaded rod has two sections of threads with opposite directions of rotation, the slider is threadedly connected to the bidirectional threaded rod, one end of the bidirectional threaded rod is rotatably connected to one of the fixed plates, and the L-shaped plate is slidably connected to the connecting plate.

[0011] Furthermore, a limiting plate is fixedly installed on one side of the support plate, and a guide rod fixed to the moving plate is provided inside the limiting plate. The guide rod is slidably connected to the limiting plate, the moving plate is slidably connected to the cylinder, the L-shaped plate is located above the conveyor, and the output shaft of the motor is rotatably connected to the support plate.

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

[0013] 1. This environmentally friendly food packaging bag processing slitting device, through the cooperation of the fixed plate, rotating rod, L-shaped plate and drive assembly, ensures that packaging belts of different widths can be guided, ensuring that the packaging belts do not deviate when moving on the conveyor, and ensuring that the slitting packaging bags are more regular.

[0014] 2. This environmentally friendly food packaging bag processing slitting device, through the cooperation of the mounting plate, hooks, T-shaped plates and fixing components, ensures that the cutter can be quickly disassembled, thereby allowing worn cutters to be sharpened or replaced, avoiding affecting the slitting effect of the packaging bags. Attached Figure Description

[0015] Figure 1This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the internal structure of the U-shaped frame of this utility model;

[0017] Figure 3 This is a schematic diagram of the regional structure of the support plate of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the cutter of this utility model;

[0019] Figure 5 This is a utility model Figure 4 Enlarged structural diagram at point A;

[0020] Figure 6 This is a structural schematic diagram of the support plate and hook of this utility model;

[0021] Figure 7 This is a schematic diagram of the internal structure of the connecting plate of this utility model;

[0022] Figure 8 This is a schematic diagram of the structure of the L-shaped plate and slider of this utility model;

[0023] Figure 9 This is a cross-sectional structural diagram of the connecting plate of this utility model;

[0024] Reference numerals: 1. U-shaped frame; 2. Conveyor; 3. Cutter; 4. Fixed plate; 5. Rotating rod; 6. L-shaped plate; 7. Mounting plate; 8. Support plate; 9. Moving plate; 10. Limiting plate; 11. Motor; 12. Guide rod; 13. Cylinder; 14. T-shaped plate; 15. Disc; 16. Limiting block; 17. Pull rod; 18. Slide groove; 19. Spring; 20. Hook; 21. Slider; 22. Groove; 23. Bidirectional threaded rod; 24. Connecting plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0029] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. 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.

[0030] like Figures 1 to 9 As shown, an environmentally friendly food packaging bag processing slitting device includes a U-shaped frame 1, a conveyor 2 fixedly installed inside the U-shaped frame 1, and a support plate 8 fixedly installed inside the U-shaped frame 1. A disc 15 is rotatably mounted on one side of the support plate 8, and a motor 11 is fixedly mounted on the other side of the support plate 8. The output shaft of the motor 11 is coaxially connected to the disc 15. A cylinder 13 is fixedly mounted on one side of the disc 15, and a movable plate 9 is provided on the cylinder 13. An mounting plate 7 is fixedly mounted on the bottom of the movable plate 9. Two hooks 20 are fixedly mounted on one side of the mounting plate 7, and a T-shaped plate 14 is inserted between the two hooks 20. A cutter 3 is fixedly mounted on the bottom of the T-shaped plate 14, and a fixing component for fixing the T-shaped plate 14 is provided inside the T-shaped plate 14. Figures 3 to 5As shown, the fixing component includes two slides 18, both of which are formed within the T-shaped plate 14. Limiting blocks 16 are slidably installed within the slides 18. One end of the limiting block 16 extends through the bottom of the slide 18 to the outside and contacts the hook 20. A pull rod 17 is slidably installed on the top of the T-shaped plate 14. Both ends of the pull rod 17 extend into the two slides 18 respectively, and both ends of the pull rod 17 are tightly welded to the top of the two limiting blocks 16 respectively. Springs 19 are sleeved at both ends of the pull rod 17 within the slides 18. Both ends of the springs 19 are tightly welded to the top of the limiting blocks 16 and the top of the slides 18 respectively. Both ends of the pull rod 17 are slidably connected to the corresponding slides 18. The pull rod 17 has a U-shaped structure.

[0031] More specifically, when the motor 11 is powered on and started, the output shaft of the motor 11 will drive the disc 15 to rotate, which in turn will drive the cylinder 13 to rotate. During this rotation, the cylinder 13 will cause the moving plate 9 to move up and down. The moving plate 9 will then cause the guide rod 12 to move up and down within the limiting plate 10. The guide rod 12 will limit the position of the moving plate 9, ensuring that it can move up and down stably. When the cylinder 13 reaches its lowest position, the upper end of the guide rod 12 remains within the limiting plate 10. The moving plate 9 will drive the mounting plate 7 to move up and down to reset. The mounting plate 7 will drive the T-shaped plate 14 and the cutter 3 to move up and down to reset, thus enabling slitting. If the cutter 3 is worn and needs to be disassembled, repaired, or replaced, the worker can lift the lever 17 by hand. The lever 17 will drive the two limit blocks 16 to move upward. At this time, the spring 19 will be compressed and contract until the two limit blocks 16 enter the two slides 18 respectively. At this time, the limit blocks 16 will no longer be in contact with the hooks 20. Then the T-shaped plate 14 can be moved out from between the two hooks 20.

[0032] Two fixed plates 4 are fixedly installed on the conveyor 2. A rotating rod 5 is rotatably installed between the two fixed plates 4. Two L-shaped plates 6 are slidably installed on the rotating rod 5. A drive assembly for driving the two L-shaped plates 6 to move closer or further apart is provided between the two fixed plates 4; for example... Figures 7 to 9As shown, the drive assembly includes a connecting plate 24, which is fixedly installed between two fixed plates 4. A groove 22 is provided at the bottom of the connecting plate 24. A bidirectional threaded rod 23 is rotatably installed in the groove 22. Two sliders 21 are slidably installed in the groove 22 and on the bidirectional threaded rod 23. The two sliders 21 are fixedly connected to two L-shaped plates 6 respectively. One end of the connecting plate 24 passes through the two L-shaped plates 6. One end of the bidirectional threaded rod 23 passes through one side of the groove 22 and one of the fixed plates 4 and is fixedly installed with a handle. The bidirectional threaded rod 23 has two sections of threads with opposite directions. The sliders 21 are threadedly connected to the bidirectional threaded rod 23. One end of the bidirectional threaded rod 23 is rotatably connected to one of the fixed plates 4. The L-shaped plates 6 are slidably connected to the connecting plate 24.

[0033] More specifically, during use, the staff can adjust the distance between the two L-shaped plates 6 according to the width of the packaging bag. By manually rotating the handle on the bidirectional threaded rod 23 in the forward direction, the staff can cause the bidirectional threaded rod 23 to rotate. Under the action of the thread, the bidirectional threaded rod 23 will cause the two sliders 21 to slide in the groove 22 and move closer to each other. At this time, the two sliders 21 will respectively drive the two L-shaped plates 6 to slide on the rotating rod 5 and move closer to each other until the distance between the two L-shaped plates 6 is consistent with the width of the packaging bag. Then, the staff can place the packaging bag on the top of the rotating rod 5 and in the position between the two L-shaped plates 6.

[0034] like Figures 1 to 9 As shown, a limiting plate 10 is fixedly installed on one side of the support plate 8. A guide rod 12 fixed to the moving plate 9 is provided inside the limiting plate 10. The guide rod 12 is slidably connected to the limiting plate 10. The moving plate 9 is slidably connected to the cylinder 13. The L-shaped plate 6 is located above the conveyor 2. The output shaft of the motor 11 is rotatably connected to the support plate 8.

[0035] More specifically, this ensures that the guide rod 12 can slide within the limiting plate 10, and that the guide rod 12 can limit the position of the moving plate 9, thereby ensuring that the moving plate 9 can move up and down normally and stably, ensuring that the L-shaped plate 6 will not rub against the conveyor 2, and ensuring that the output shaft of the motor 11 can rotate within the support plate 8.

[0036] In summary: When using the product, the staff can adjust the distance between the two L-shaped plates 6 according to the width of the packaging bag. By manually rotating the handle on the double-sided threaded rod 23 in the forward direction, the staff can cause the double-sided threaded rod 23 to rotate. Under the action of the thread, the double-sided threaded rod 23 will cause the two sliders 21 to slide in the groove 22 and move closer to each other. At this time, the two sliders 21 will respectively cause the two L-shaped plates 6 to slide on the rotating rod 5 and move closer to each other until the distance between the two L-shaped plates 6 is consistent with the width of the packaging bag. Then, the staff can place the packaging bag on the top of the rotating rod 5 and in the position between the two L-shaped plates 6.

[0037] Then, the motor 11 is connected to the power supply and started. The output shaft of the motor 11 will drive the disc 15 to rotate. The disc 15 will drive the cylinder 13 to rotate. During the rotation of the cylinder 13, the moving plate 9 will move up and down. The moving plate 9 will drive the guide rod 12 to move up and down within the limiting plate 10. The guide rod 12 will limit the position of the moving plate 9, thereby ensuring that the moving plate 9 can move up and down normally and stably. When the cylinder 13 rotates to the lowest position, the upper end of the guide rod 12 is still within the limiting plate 10. At the same time, the moving plate 9 will drive the mounting plate 7 to move up and down. The mounting plate 7 will drive the T-shaped plate 14 and the cutter 3 to move up and down.

[0038] Simultaneously, power is supplied to and the conveyor 2 is started. The conveyor 2 will move the packaging bag towards the collection box. During the movement, the two L-shaped plates 6 will guide the position of the packaging bag to prevent it from deviating. The cutter 3 will cut the packaging bag by moving up and down and back and forth. If the cutter 3 is worn and needs to be disassembled, repaired, or replaced, the operator can lift the lever 17 by hand. The lever 17 will move the two limit blocks 16 upward. At this time, the spring 19 will be compressed and contracted until the two limit blocks 16 enter the two slides 18 respectively. At this time, the limit blocks 16 will no longer contact the hook 20. Then the T-shaped plate 1 can be lifted. 4. Remove it from between the two hooks 20. During installation, the worker places the T-shaped plate 14 between the two hooks 20 and contacts the inclined surfaces on the two limit blocks 16 with the inclined surfaces on the two hooks 20. Then, the cutter 3 can be pushed. The limit blocks 16 will be displaced upward by the pressure of the hooks 20, and the spring 19 will be compressed until the limit blocks 16 are completely inserted into the slide groove 18. When the T-shaped plate 14 contacts the support plate 8, under the action of the rebound force of the spring 19, the spring 19 will drive the limit blocks 16 to move downward, so that the side of the limit blocks 16 away from the inclined surface contacts the hooks 20, thereby restricting the T-shaped plate 14 between the two hooks 20.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly food packaging bag processing cutting device, comprising a U-shaped frame (1), wherein a conveyor (2) is fixedly installed inside the U-shaped frame (1), characterized in that, It also includes a support plate (8), which is fixedly installed inside the U-shaped frame (1). A disc (15) is rotatably installed on one side of the support plate (8), and a motor (11) is fixedly installed on the other side of the support plate (8). The output shaft of the motor (11) is coaxially connected to the disc (15). A cylinder (13) is fixedly installed on one side of the disc (15). A movable plate (9) is provided on the cylinder (13). An mounting plate (7) is fixedly installed at the bottom of the movable plate (9). Two hooks (20) are fixedly installed on one side of the mounting plate (7). A T-shaped plate (14) is inserted between the two hooks (20). A cutter (3) is fixedly installed at the bottom of the T-shaped plate (14). A fixing component for fixing the T-shaped plate (14) is provided inside the T-shaped plate (14). Two fixing plates (4) are fixedly installed on the conveyor (2). A rotating rod (5) is rotatably installed between the two fixing plates (4). Two L-shaped plates (6) are slidably installed on the rotating rod (5). A driving component for driving the two L-shaped plates (6) to move closer or further away from each other is provided between the two fixing plates (4).

2. The environmentally friendly food packaging bag processing cutting device according to claim 1, characterized in that, The fixing assembly includes two slides (18), both of which are opened in the T-shaped plate (14). A limiting block (16) is slidably installed in the slide (18). One end of the limiting block (16) extends through the bottom of the slide (18) to the outside and contacts the hook (20). A pull rod (17) is slidably installed on the top of the T-shaped plate (14). Both ends of the pull rod (17) extend into the two slides (18), and both ends of the pull rod (17) are tightly welded to the top of the two limiting blocks (16). Springs (19) are sleeved on both ends of the pull rod (17) and located in the slide (18).

3. The environmentally friendly food packaging bag processing cutting device according to claim 2, characterized in that, The two ends of the spring (19) are tightly welded to the top of the limiting block (16) and the top of the slide groove (18), respectively. The two ends of the pull rod (17) are slidably connected to the corresponding slide groove (18), and the pull rod (17) has a U-shaped structure.

4. The environmentally friendly food packaging bag processing cutting device according to claim 1, characterized in that, The drive assembly includes a connecting plate (24), which is fixedly installed between two fixed plates (4). The bottom of the connecting plate (24) has a groove (22), in which a bidirectional threaded rod (23) is rotatably installed. Two sliders (21) are slidably installed in the groove (22) and on the bidirectional threaded rod (23), and the two sliders (21) are fixedly connected to two L-shaped plates (6) respectively. One end of the connecting plate (24) passes through the two L-shaped plates (6), and one end of the bidirectional threaded rod (23) passes through one side of the groove (22) and one of the fixed plates (4) and is fixedly installed with a handle.

5. The environmentally friendly food packaging bag processing cutting device according to claim 4, characterized in that, The bidirectional threaded rod (23) has two sections of threads with opposite directions of rotation. The slider (21) is threadedly connected to the bidirectional threaded rod (23). One end of the bidirectional threaded rod (23) is rotatably connected to one of the fixed plates (4). The L-shaped plate (6) is slidably connected to the connecting plate (24).

6. The environmentally friendly food packaging bag processing cutting device according to claim 1, characterized in that, A limiting plate (10) is fixedly installed on one side of the support plate (8). The limiting plate (10) is provided with a guide rod (12) fixed to the moving plate (9). The guide rod (12) is slidably connected to the limiting plate (10). The moving plate (9) is slidably connected to the cylinder (13). The L-shaped plate (6) is located above the conveyor (2). The output shaft of the motor (11) is rotatably connected to the support plate (8).