A cutting device for express packaging bags

By adopting an electric slide table and screw pusher structure in the express packaging bag cutting device, the problem of inconvenient blade disassembly and assembly is solved, enabling quick replacement and stable cutting, and improving cutting efficiency and flatness.

CN224447087UActive Publication Date: 2026-07-03SUQIAN JINGXUN PACKAGING PRODUCTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUQIAN JINGXUN PACKAGING PRODUCTS CO LTD
Filing Date
2025-07-15
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing express packaging bag cutting devices cannot quickly remove the blades when cutting to the required length, resulting in dull blades that affect cutting effect, efficiency, and flatness.

Method used

A cutting device for express packaging bags was designed, which adopts an electric slide table and a screw push block structure to realize the quick assembly and disassembly of the cutting tool. The position of the cutting tool is adjusted by the electric slide table and locked by the screw push block to ensure the stable movement of the cutting tool and the cutting effect.

Benefits of technology

It enables quick tool changes and stable cutting, improves cutting efficiency and flatness, and ensures the slitting effect and ease of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a courier packaging bag cutting device, including a mounting frame; the mounting frame is internally provided with a cutting mechanism for cutting the packaging bag, and the top of the mounting frame is provided with a pressing mechanism for holding the packaging bag. A material carrier plate is fixedly installed at the inner end of the mounting frame; the cutting mechanism includes a moving component, which is located at the top of the inner cavity of the mounting frame; this utility model, through the setting of the cutting mechanism, can achieve the advantages of quick disassembly and replacement of the blade, and its operation is simple and convenient, so as to ensure the efficiency, effect and flatness of subsequent cutting. The position of the blade can be adjusted according to the electric slide table to realize horizontal moving cutting. The screw pushes the push block to adapt to the slider and the groove and form a fixed shape. During cutting, the horizontal movement of the blade can cut the contacted courier packaging bag. During moving cutting, reciprocating cutting operation is realized.
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Description

Technical Field

[0001] This utility model relates to the field of packaging bag processing technology, specifically to a cutting device for express packaging bags. Background Technology

[0002] Express delivery packaging bags refer to the bags used in the express delivery industry to pack documents, forms, materials, goods, etc. Also known as courier bags, mail bags, or express packaging bags, they are mostly made of polyethylene plastic, which is low-cost, easy to use, and waterproof. Other types of packaging bags are also used to protect items. During the production process, these bags are cut to the required sizes using a slitting device.

[0003] Using a flat film to cut directly from the middle, the initial production of plastic film is in the form of a tube. Cutting directly from the tube can reduce the number of process steps.

[0004] To address the aforementioned technical issues, CN221700647U discloses a courier packaging bag cutting device. Its compact design minimizes space requirements. The movable support allows for quick adjustment of the cutting position, significantly improving operational convenience and efficiency. The locking bolts ensure stability during cutting, reducing cutting errors caused by movement or vibration. Each movable support has at least two sets of cutter supports; this backup design increases the device's reliability. Even if one set of cutters malfunctions, the other set can continue operating without affecting the overall production process. This device meets the high-efficiency and accurate cutting requirements of courier packaging bags, improving production efficiency.

[0005] The existing technology has the following shortcomings: when cutting express packaging bags to the required length, the blade cannot be quickly removed, and prolonged cutting causes the blade to become dull, affecting the cutting effect, efficiency and flatness. Utility Model Content

[0006] The purpose of this utility model is to provide a cutting device for express packaging bags, which has the advantages of easy and quick disassembly and replacement of blades. This method is simple and convenient to operate, and can ensure the cutting effect, efficiency and flatness of express bags, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a courier packaging bag cutting device, including a mounting frame;

[0008] The mounting frame is equipped with a cutting mechanism for cutting the packaging bag inside, and a pressing mechanism for pressing the packaging bag is provided on the top of the mounting frame. A material carrier plate is fixedly installed on the inner end of the mounting frame.

[0009] The slitting mechanism includes:

[0010] A movable component is disposed at the top of the inner cavity of the mounting frame. A connecting component and a cutting component adapted to the connecting component are disposed at the bottom of the movable component. A locking component for fixing the material is disposed on one side of the connecting component.

[0011] The pressing mechanism includes:

[0012] A push-down assembly is disposed at the top of the mounting bracket, and a pressure assembly is disposed at the bottom end of the push-down assembly.

[0013] Preferably, the moving component includes;

[0014] The mounting block is fixedly installed at the bottom of the inner cavity of the mounting frame, and an electric slide is fixedly installed at the bottom end of the mounting block.

[0015] Preferably, the connection component includes;

[0016] A connecting seat is fixedly installed at the bottom of the moving end of the electric slide table, and a sliding groove is provided at the bottom of the connecting seat.

[0017] Preferably, the cutting assembly includes;

[0018] The slider is slidably connected inside the groove. A groove is provided on one side of the slider. A bracket and a cutter body rotatably connected to the inner side wall of the bracket are fixedly installed at the bottom of the slider.

[0019] Preferably, the locking component includes;

[0020] A screw, threaded through one side of the connecting seat, has a push block and a crossbar fixed to one side of the push block rotatably connected to one end of the screw.

[0021] Preferably, the push-down component includes;

[0022] An electric push rod is fixedly installed on the top of the mounting frame, and vertical rods are slidably connected through both ends of the top of the mounting frame.

[0023] Preferably, the pressing assembly includes;

[0024] A fixing frame is fixedly installed at the output end of the electric push rod, and a pressure strip is fixedly installed at the bottom of the fixing frame.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] This utility model, through the setting of the cutting mechanism, can achieve the advantages of quick disassembly and replacement of the blade. Its operation is simple and convenient, ensuring the efficiency, effect and flatness of subsequent cutting. The position of the blade can be adjusted according to the electric slide table to realize horizontal moving cutting. The screw pushes the push block to adapt to the slider and groove and form a fixed shape. During cutting, the horizontal movement of the blade body can cut the contacted express packaging bag. During moving cutting, it can realize reciprocating cutting operation.

[0027] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the electric push rod structure of this utility model;

[0030] Figure 3 This is a schematic diagram of the electric slide table structure of this utility model;

[0031] Figure 4 This is a schematic diagram of the internal structure of the connector of this utility model.

[0032] In the diagram: 1. Mounting frame; 2. Cutting mechanism; 21. Mounting block; 22. Electric slide table; 23. Connecting seat; 24. Slide groove; 25. Screw; 26. Push block; 27. Crossbar; 28. Slider; 29. ​​Groove; 210. Bracket; 211. Blade body; 3. Pressing mechanism; 31. Electric push rod; 32. Fixing frame; 33. Pressing bar; 34. Vertical rod; 4. Carrying plate. Detailed Implementation

[0033] 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.

[0034] This utility model provides a cutting device for express packaging bags, including a mounting frame 1;

[0035] The mounting frame 1 is equipped with a cutting mechanism 2 for cutting the packaging bag inside, and a pressing mechanism 3 for pressing the packaging bag is provided on the top of the mounting frame 1. A material carrier plate 4 is fixedly installed on the inner end of the mounting frame 1.

[0036] The slitting mechanism 2 includes;

[0037] A movable component is located at the top of the inner cavity of the mounting frame 1. A connecting component and a cutting component adapted to the connecting component are provided at the bottom of the movable component. A locking component for fixing the material is provided on one side of the connecting component.

[0038] The pressing mechanism 3 includes;

[0039] The push-down component is located at the top of the mounting bracket 1, and the bottom of the push-down component is provided with a pressure component.

[0040] Preferred;

[0041] like Figure 3 As shown, the moving component includes;

[0042] Mounting block 21 is fixedly installed at the bottom of the inner cavity of mounting frame 1. An electric slide table 22 is fixedly installed at the bottom of mounting block 21. Mounting block 21 is used to support and fix electric slide table 22. Electric slide table 22 can adjust the position of the cutter and move back and forth for cutting under the drive.

[0043] further;

[0044] like Figure 4 As shown, the connecting components include;

[0045] The connecting seat 23 is fixedly installed at the bottom of the moving end of the electric slide table 22. The bottom of the connecting seat 23 is provided with a sliding groove 24 to adapt to and support the cutting component, and can also be used for limiting operation during installation.

[0046] Going a step further;

[0047] like Figure 4 As shown, the cutting assembly includes;

[0048] The slider 28 is slidably connected to the inside of the groove 24. A groove 29 is provided on one side of the slider 28. A bracket 210 and a blade 211 rotatably connected to the inner wall of the bracket 210 are fixedly installed at the bottom of the slider 28, which facilitates the installation of the slider and enables direct contact cutting when it is moved.

[0049] in;

[0050] like Figure 4 As shown, the locking component includes;

[0051] The screw 25 is threaded through one side of the connecting seat 23. One end of the screw 25 is rotatably connected to the push block 26 and the crossbar 27 fixed to one side of the push block 26. The fixing operation can be completed by pushing the screw through the thread and fitting the slider 28 tightly.

[0052] During installation, the blade 211 is removed directly, and the slider 28 is aligned with the groove 24 and inserted into it until it cannot move. Then, the screw 25 is rotated clockwise to extend according to the threaded connection and push the push block 26 to move horizontally until the push block 26 is located in the groove 29 and locks the slider 28. During the movement of the push block 26, the crossbar 27 will slide horizontally, thereby ensuring the horizontal stability of the movement. At this time, the installation is completed.

[0053] When disassembly is required, simply reverse the above steps: rotate screw 25 in the opposite direction to release the locking state, and then pull it back to disassemble and complete the disassembly operation.

[0054] During the cutting process, the express packaging bag is pressed and fixed. Then, the electric slide 22 is started to drive the blade 211 installed below to move horizontally and cut the packaging bag it contacts. It moves from left to right. When it is necessary to cut the next packaging bag, it moves from right to left. The reciprocating motion can realize the back-and-forth cutting operation.

[0055] It is worth explaining;

[0056] like Figure 2 As shown, the pushdown component includes;

[0057] The electric push rod 31 is fixedly installed on the top of the mounting frame 1. Both ends of the top of the mounting frame 1 are slidably connected to vertical rods 34, which can be adjusted to the required height position so as to complete the fixing operation before cutting by pushing and pressing down.

[0058] at last;

[0059] like Figure 2 As shown, the pressing assembly includes;

[0060] The fixing frame 32 is fixedly installed at the output end of the electric push rod 31. The bottom of the fixing frame 32 is fixedly installed with a pressure strip 33, which facilitates direct contact with the packaging bag, thereby completing the pressing and fixing operation and preventing the packaging bag from shifting during cutting.

[0061] During the pressing and fixing process, the electric push rod 31 works directly and extends to push the fixing frame 32 to move. As the fixing frame 32 moves down, it drives the vertical rod 34 to move together to ensure the verticality of the downward movement. The fixing frame 32 and the vertical rod 34 are fixedly connected. At the same time, it will push the two sets of pressure strips 33 at the bottom to move down together until they contact the packaging bag, thus completing the fixing operation before slitting.

[0062] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cutting device for express packaging bags, characterized in that, Includes mounting bracket (1); The mounting frame (1) is provided with a cutting mechanism (2) for cutting the packaging bag inside, and a pressing mechanism (3) for pressing the packaging bag is provided on the top of the mounting frame (1). A material carrier plate (4) is fixedly installed on the inner end of the mounting frame (1). The cutting mechanism (2) includes: A movable component is provided at the top of the inner cavity of the mounting frame (1). A connecting component and a cutting component adapted to the connecting component are provided at the bottom of the movable component. A locking component for fixing the material is provided on one side of the connecting component. The pressing mechanism (3) includes: A push-down assembly is disposed on the top of the mounting bracket (1), and a pressure assembly is disposed at the bottom end of the push-down assembly.

2. The cutting device of claim 1, wherein: The mobile component includes; The mounting block (21) is fixedly installed at the bottom of the inner cavity of the mounting frame (1), and an electric slide (22) is fixedly installed at the bottom end of the mounting block (21).

3. The apparatus according to claim 2, wherein: The connection component includes; A connecting seat (23) is fixedly installed at the bottom of the moving end of the electric slide (22), and a sliding groove (24) is provided at the bottom of the connecting seat (23).

4. The cutting device of claim 3, wherein: The cutting assembly includes; The slider (28) is slidably connected to the inside of the groove (24). A groove (29) is provided on one side of the slider (28). A bracket (210) and a blade (211) rotatably connected to the inner wall of the bracket (210) are fixedly installed at the bottom of the slider (28).

5. The apparatus of claim 4, wherein: The locking component includes; A screw (25) is threaded through one side of the connecting seat (23), and one end of the screw (25) is rotatably connected to a push block (26) and a crossbar (27) fixed to one side of the push block (26).

6. The apparatus of claim 1, wherein: The push-down component includes: An electric push rod (31) is fixedly installed on the top of the mounting bracket (1), and vertical rods (34) are slidably connected through both ends of the top of the mounting bracket (1).

7. The apparatus of claim 6, wherein: The pressing assembly includes; A fixing frame (32) is fixedly installed at the output end of the electric push rod (31), and a pressure strip (33) is fixedly installed at the bottom of the fixing frame (32).