Cutter protection structure for paper cutter

By designing mounting slots, angled slots, moving rods, and a motor-driven hinged plate structure on the paper cutter, the blades are concealed, solving the problem of accidental injury caused by exposed blades and improving the safety and ease of operation of the paper cutter.

CN223989575UActive Publication Date: 2026-03-13ZHUOZHOU XINGHE PRINTING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-06
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Traditional paper cutters have shortcomings in their blade protection structure. When not in use, the blades are exposed, which can easily lead to accidental contact and injury, affecting the safety of use.

Method used

Design a blade protection structure including a mounting slot, an inclined slot, a moving rod, a lifting block, a motor, and a hinge assembly. The motor drives the hinge plate to move the lifting block, and the blade is hidden in the mounting slot. At the same time, a pressing assembly and a cardboard are used to fix and flatten the paper.

Benefits of technology

This design allows the blades to be hidden when not in use, preventing accidental activation and improving the safety and ease of operation of the paper cutter.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223989575U_ABST
    Figure CN223989575U_ABST
Patent Text Reader

Abstract

The cutter protection structure comprises the paper cutting machine, an installation groove is formed in one end of the interior of the paper cutting machine, inclined grooves are formed in the two sides of the interior of the installation groove respectively, moving rods are slidably connected to the interiors of the two sets of inclined grooves respectively, and a lifting block is connected between the two sets of moving rods. A blade is mounted at the bottom of the lifting block and hidden in the mounting groove, paper is placed in the groove, an extrusion assembly is started to extrude and fix the paper, a motor is started, the motor drives a first hinge plate to rotate, the first hinge plate drives a second hinge plate to move, and the second hinge plate pushes a supporting seat mounted at the top of the lifting block; and meanwhile, a moving rod installed on the outer side of the lifting block moves along an inclined groove, when the lifting block moves downwards, a blade installed at the bottom is pushed to move to cut fixed paper, when the paper is not cut, the lifting block can drive the blade to be hidden in the mounting groove, and workers are prevented from touching a cutter by mistake.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of paper cutter technology, specifically to a blade protection structure for a paper cutter. Background Technology

[0002] In the modern office and printing industry, paper cutters are a commonly used piece of equipment that plays an important role in cutting paper, cardboard or other similar materials into the required size. With the advancement of technology and the diversification of needs, the design of paper cutters is also constantly evolving to improve cutting accuracy, ease of operation and safety.

[0003] However, traditional paper cutters still have some shortcomings in terms of blade protection structure. When the blade is not in working condition, the cutting tool is exposed, and there is no protective structure next to the cutting table. Workers often accidentally touch the blade and injure their hands, which seriously affects the use effect of the paper cutter and cannot meet the usage requirements. Therefore, it is necessary to design a blade protection structure for paper cutters to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a blade protection structure for a paper cutter to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a blade protection structure for a paper cutter, including a paper cutter, wherein an installation groove is provided at one end of the interior of the paper cutter, and oblique grooves are provided on both sides of the interior of the installation groove, and a moving rod is slidably connected inside the two sets of oblique grooves, and a lifting block is connected between the two sets of moving rods, and a blade is installed at the bottom of the lifting block and the blade is hidden inside the installation groove;

[0006] A motor is embedded in one side of the mounting slot. A hinge assembly is installed between the output end of the motor and the lifting block. A pressing assembly is installed at the end of the paper cutter away from the mounting slot. A groove is opened at one end of the paper cutter.

[0007] Preferably, the hinge assembly includes a first hinge plate, a second hinge plate, and a support base. The first hinge plate is connected to the output end of the motor, the support base is installed on the top of the lifting block, and two sets of second hinge plates are respectively hinged between the first hinge plate and the support base.

[0008] Preferably, the extrusion assembly includes a drop trough, a pressure block, and a screw. The drop trough is located at one end inside the paper cutter. The pressure block is slidably connected inside the drop trough. The screw is threaded through the inside of the paper cutter and is connected to the top of the pressure block by a bearing.

[0009] Preferably, a handle is installed on the top of the screw, and the handle drives the screw to rotate.

[0010] Preferably, the paper cutter has a locking groove in the middle of its interior, and first sliding grooves are respectively provided at both ends of the locking groove. Two sets of cardboard are slidably connected between the two sets of first sliding grooves.

[0011] Preferably, a vertical plate is installed on one side of the paper cutter, and a second sliding groove is opened inside the vertical plate. Movable blocks are respectively installed on one side of the two sets of cardboard sheets, and the movable blocks pass through the second sliding groove and are located on one side of the paper cutter.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By placing the paper into the groove, the extrusion assembly is activated to press and fix the paper. The motor is then turned on, causing the first hinge plate to rotate. The first hinge plate then moves the second hinge plate, which pushes the support seat mounted on the top of the lifting block, causing the lifting block to move within the mounting groove. Simultaneously, the moving rod mounted on the outside of the lifting block moves along the inclined groove. When the lifting block moves downward, it pushes the blade mounted at the bottom to move and cut the fixed paper. When not cutting the paper, the lifting block can hide the blade within the mounting groove to prevent workers from accidentally touching the blade.

[0014] 2. By rotating the handle, the handle drives the screw to rotate at one end of the paper cutter. The screw pushes the pressure block connected to the bottom bearing to move in the lower groove, so that the pressure block squeezes and fixes the paper placed in the groove. The moving block moves in the second slide groove, and drives the connected cardboard to move. The cardboard moves in the clamping groove, and at the same time, the cardboard moves in the first slide groove opened in the clamping groove, placing the paper between the two sets of cardboards. The two sets of cardboards move to flatten the paper. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure of the trough from the front view of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the cutting cardboard of this utility model;

[0017] Figure 3 This utility model Figure 1 Enlarged view of point A;

[0018] Figure 4 This utility model Figure 2 Enlarged diagram of point B.

[0019] In the diagram: 1. Paper cutter, 2. Mounting slot, 3. Inclined slot, 4. Moving rod, 5. Lifting block, 6. Blade, 7. Motor, 8. First hinge plate, 9. Second hinge plate, 10. Support base, 11. Groove, 12. Drop groove, 13. Pressure block, 14. Screw, 15. Handle, 16. Engaging groove, 17. First slide groove, 18. Cardboard plate, 19. Top plate, 20. Second slide groove, 21. Moving block. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please refer to Figure 1-4 As shown, this utility model provides a blade protection structure for a paper cutter, including a paper cutter 1. The paper cutter 1 has an installation groove 2 at one end inside. The installation groove 2 has oblique grooves 3 on both sides inside. The two sets of oblique grooves 3 are slidably connected to the interior of the two sets of oblique grooves 3. A lifting block 5 is connected between the two sets of moving rods 4. A blade 6 is installed at the bottom of the lifting block 5 and the blade 6 is hidden inside the installation groove 2.

[0023] A motor 7 is embedded in one side of the mounting slot 2. A hinge assembly is installed between the output end of the motor 7 and the lifting block 5. A pressing assembly is installed at the end of the paper cutter 1 away from the mounting slot 2. A groove 11 is opened at one end of the paper cutter 1.

[0024] Specifically, by placing the paper into the groove 11, the extrusion assembly is activated to extrude and fix the paper, and at the same time, the motor 7 is activated. The motor 7 drives the hinge assembly to move, and the hinge assembly pushes the lifting block 5 to move in the mounting groove 2. At the same time, the moving rod 4 installed on the outside of the lifting block 5 moves along the inclined groove 3. When the lifting block 5 moves downward, it pushes the blade 6 installed at the bottom to move and cut the fixed paper. When not cutting the paper, the lifting block 5 can drive the blade 6 to hide in the mounting groove 2.

[0025] The hinge assembly includes a first hinge plate 8, a second hinge plate 9, and a support base 10. The first hinge plate 8 is connected to the output end of the motor 7, and the support base 10 is installed on the top of the lifting block 5. Two sets of second hinge plates 9 are respectively hinged between the first hinge plate 8 and the support base 10. The motor drives the first hinge plate 8 to rotate, and the first hinge plate 8 drives the second hinge plate 9 to move, so that the second hinge plate 9 pushes the support base 10 installed on the top of the lifting block 5, so that the lifting block 5 moves in the mounting groove 2.

[0026] The extrusion assembly includes a lower groove 12, a pressure block 13, and a screw 14. The lower groove 12 is located inside one end of the paper cutter 1. The pressure block 13 is slidably connected inside the lower groove 12. The screw 14 is threaded through the inside of the paper cutter 1 and is connected to the top of the pressure block 13 by a bearing. The screw 14 rotates at the top end of the paper cutter 1, and pushes the pressure block 13 connected to the bottom bearing to move within the lower groove 12, so that the pressure block 13 extrudes and fixes the paper placed in the groove 11.

[0027] The screw 14 is equipped with a handle 15 on its top. The handle 15 drives the screw 14 to rotate. By rotating the handle 15, the screw 14 rotates at one end of the top of the paper cutter 1.

[0028] The paper cutter 1 has a locking groove 16 in the middle of its interior. The locking groove 16 has a first sliding groove 17 at both ends. Two sets of cardboard plates 18 are slidably connected between the two sets of first sliding grooves 17. The two sets of cardboard plates 18 move in the locking groove 16 and at the same time move in the first sliding grooves 17 in the locking groove 16, so that the paper is placed between the two sets of cardboard plates 18. The two sets of cardboard plates 18 move to flatten the paper.

[0029] Among them: a vertical plate 19 is installed on one side of the paper cutter 1, and a second slide groove 20 is opened inside the vertical plate 19. A moving block 21 is installed on one side of each of the two sets of cardboard 18, and the moving block 21 passes through the second slide groove 20 and is located on one side of the paper cutter 1. By moving the moving block 21 within the second slide groove 20, the connected cardboard 18 is moved.

[0030] Working Principle: This utility model provides a blade protection structure for a paper cutter. In use, paper is placed between two sets of cardboard plates 18 for leveling. The paper is pushed to the bottom of the groove 11. The handle 15 is rotated, causing the screw 14 to rotate at one end of the paper cutter 1. The screw 14 pushes the pressure block 13 connected to the bottom bearing to move within the drop groove 12, causing the pressure block 13 to press and fix the paper placed in the groove 11. The motor 7 is turned on, causing the first hinge plate 8 to rotate. The first hinge plate 8 drives the second hinge plate 9 to move, causing the second hinge plate 9 to push the support seat 10 mounted on the top of the lifting block 5, allowing the lifting block 5 to move within the mounting groove 2. When the lifting block 5 moves downwards, it pushes the blade 6 mounted at the bottom to move and cut the fixed paper. When not cutting the paper, the lifting block 5 can move the blade 6 and hide it within the mounting groove 2. Content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A knife guard structure for a cutting machine, comprising a cutting machine (1), characterized in that: The inside one end of the paper cutter (1) is provided with a mounting groove (2), the inside two sides of the mounting groove (2) are respectively provided with an inclined groove (3), the inside of the two groups of inclined grooves (3) are respectively connected with a moving rod (4), the two groups of moving rods (4) are connected with a lifting block (5), the bottom of the lifting block (5) is provided with a blade (6) and the blade (6) is hidden in the inside of the mounting groove (2); The inside one side of the mounting groove (2) is embeddedly provided with a motor (7), the output end of the motor (7) is connected with the lifting block (5) through a hinged assembly, the inside of the paper cutter (1) is provided with an extrusion assembly away from the mounting groove (2), the inside one end of the paper cutter (1) is provided with a recess (11).

2. A knife guard structure for a paper cutter as defined in claim 1, wherein: The hinged assembly comprises a first hinged plate (8), a second hinged plate (9) and a supporting seat (10), the first hinged plate (8) is connected with the output end of the motor (7), the supporting seat (10) is installed on the top of the lifting block (5), the two groups of second hinged plates (9) are respectively hinged between the first hinged plate (8) and the supporting seat (10).

3. A knife guard structure for a paper cutter as defined in claim 1 wherein: The extrusion assembly comprises a falling groove (12), a pressing block (13) and a screw rod (14), the falling groove (12) is provided in the inside one end of the paper cutter (1), the pressing block (13) is slidably connected in the inside of the falling groove (12), the screw rod (14) is screwed through the inside of the paper cutter (1) and is connected with the top of the pressing block (13) through a bearing.

4. A guard structure for a cutting knife of a paper cutting machine according to claim 3, characterized in that: The top of the screw rod (14) is provided with a handle (15), the handle (15) drives the screw rod (14) to rotate.

5. A knife guard structure for a paper cutter as defined in claim 3 wherein: The inside middle end of the paper cutter (1) is provided with a clamping groove (16), the two ends of the clamping groove (16) are respectively provided with a first sliding groove (17), the two groups of first sliding grooves (17) are slidably connected with two groups of clamping paper boards (18).

6. A blade guard structure for a paper cutter as defined in claim 5 wherein: One side of the paper cutter (1) is provided with a vertical plate (19), the inside of the vertical plate (19) is provided with a second sliding groove (20), one side of the two groups of clamping paper boards (18) is respectively provided with a moving block (21) and the moving block (21) penetrates through the second sliding groove (20) and is located on one side of the paper cutter (1).