A cutting device for processing inner cardboard

By combining the servo motor-driven threaded rod and the limiting mechanism, the problem of secondary cutting of the cardboard during the resetting of the cutter assembly is solved, achieving a more efficient cardboard slitting effect.

CN224940674UActive Publication Date: 2026-11-06LIAOCHENG BAILI PAPER PRODUCTS PROCESSING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522503087.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-26
Publication Date
2026-11-06
Estimated Expiration
2035-11-26

AI Technical Summary

Technical Problem

The existing cutting device comes into contact with the paper edge of the cardboard strip again during the resetting process of the cutting assembly, resulting in secondary cutting of the cardboard side and reducing the slitting effect.

Method used

Design a cutting device for processing inner lining cardboard. A servo motor drives a threaded rod to move an arched plate and a movable frame, so that the cutting blade assembly avoids the cardboard cut when resetting. A limiting mechanism and a squeezing mechanism are used to fix the cardboard, ensuring that the cutting blade assembly no longer comes into contact with the cardboard.

Benefits of technology

It improves the slitting effect of cardboard, avoids secondary damage to the cardboard cut during the resetting process of the cutter group, and improves the slitting quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224940674U_ABST
    Figure CN224940674U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of packaging box production technology, and in particular to a cutting device for processing inner cardboard. An arched plate is fixedly connected to the upper end of a movable frame, and a servo motor is fixedly connected to the upper end of a base platform. A threaded rod is fixedly connected to the output end of the servo motor to drive the arched plate to move vertically. Slide grooves are provided on both sides of the groove, and a support plate is slidably connected between the two slide grooves. A pressing mechanism for fixing the cardboard on the support plate is connected to the base platform. This utility model uses the servo motor to drive the threaded rod to rotate clockwise a set number of times. After the threaded rod rotates, the arched plate moves upward, which in turn moves the movable frame. The movable frame, through a mounting frame, drives the cutting blade assembly upward, positioning the cutting blade assembly above the cardboard. During the resetting process, the cutting blade assembly does not move twice from the cardboard cut, thus preventing cut marks and improving the cutting effect.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of packaging box production technology, and in particular to a cutting device for processing inner cardboard. Background Technology

[0002] As the core carrier for protecting the integrity of goods, packaging boxes are increasingly used for their inner cardboard linings. With their lightweight, low cost, easy recycling, and excellent cushioning performance, inner cardboard linings are widely used for the internal protection of various goods such as electronic equipment, precision instruments, fresh food, and daily necessities, and can effectively absorb the impact and vibration during transportation.

[0003] In the processing of inner lining paperboard, a cutting device is used to cut the paperboard into strips. The inner lining paperboard is then made from these strips. After the cutting device cuts the paperboard, there is a cutting edge between two adjacent strips. During the cutting and resetting process, the cutting blade group moves and resets from the cutting edge a second time. During the resetting process, the cutting blade group contacts the paper edge of the strip again, making a second cut on the side of the strip, thereby reducing the cutting effect of the paperboard. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the prior art where the cutter assembly contacts the paper edge of the cardboard strip again during the reset process, resulting in a secondary cut on the side of the cardboard strip and thus reducing the slitting effect of the cardboard. Therefore, a cutting device for processing inner cardboard is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Design a cutting device for processing inner cardboard, including a base platform, a movable frame slidably connected to the upper end of the base platform, a mounting frame slidably connected to the movable frame, a cutting assembly mounted on the mounting frame, an arched plate fixedly connected to the upper end of the movable frame, a servo motor fixedly connected to the upper end of the base platform, a threaded rod fixedly connected to the output end of the servo motor for driving the arched plate to move vertically, a groove is formed on one side of the upper end of the base platform, sliding grooves are formed on both sides of the groove, a support plate is slidably connected between the two sliding grooves, and a pressing mechanism for fixing the cardboard on the support plate is connected to the base platform.

[0007] Preferably, a number of stops are connected at equal intervals along the length direction on one side of the upper end of the support plate.

[0008] Preferably, a limiting mechanism for fixing the support plate is installed on the groove. The limiting mechanism includes a fixing seat, which is fixedly connected to the groove. An insert plate is rotatably connected to the fixing seat, and a card seat is fixedly connected to the support plate. The insert plate is inserted into the card seat.

[0009] Preferably, the insert plate is made of stainless steel.

[0010] Preferably, the surface of the base platform is flush with the upper surface of the support plate.

[0011] Preferably, the extrusion mechanism includes a second telescopic cylinder, which is fixedly connected to the bottom end of the base platform. A movable plate is fixedly connected to the telescopic end of the second telescopic cylinder. Both sides of the base platform are provided with strip holes, and one end of each movable plate passes through the strip hole and is fixedly connected to an extrusion plate.

[0012] Preferably, the bottom end of the extrusion plate is parallel to the upper end of the support plate.

[0013] Preferably, the movable plate and the extrusion plate are an integral structure.

[0014] The present invention provides a cutting device for processing inner lining cardboard, which has the following advantages:

[0015] The servo motor drives the threaded rod to rotate clockwise a set number of times. After the threaded rod rotates, the arched plate moves upward. The arched plate drives the movable frame to move. The movable frame drives the cutter assembly to move upward through the mounting frame, so that the cutter assembly is above the cardboard. During the resetting process, the cutter assembly will not move from the cut of the cardboard a second time, thus avoiding cutting marks on the cut of the cardboard and improving the slitting effect. Attached Figure Description

[0016] Figure 1 This utility model provides a schematic diagram of the structure of a cutting device for processing inner lining cardboard. Figure 1 ;

[0017] Figure 2 This utility model provides a schematic diagram of the structure of a cutting device for processing inner lining cardboard. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the structure of a cutting device for processing inner lining cardboard proposed in this utility model;

[0019] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point A above.

[0020] In the diagram: 1. Base platform; 2. Movable frame; 3. Mounting frame; 4. Cutting blade assembly; 5. First telescopic cylinder; 6. Arched plate; 7. Servo motor; 8. Threaded rod; 9. Groove; 10. Slide groove; 11. Support plate; 12. Stop block; 13. Limiting mechanism; 14. Extrusion mechanism; 131. Fixed seat; 132. Insert plate; 133. Card seat; 141. Second telescopic cylinder; 142. Movable plate; 143. Strip hole; 144. Extrusion plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example 1: Refer to Figure 1-3 A cutting device for processing inner cardboard includes a base platform 1, a movable frame 2 slidably connected to the upper end of the base platform 1, a mounting frame 3 slidably connected to the movable frame 2, a cutting assembly 4 mounted on the mounting frame 3, a first telescopic cylinder 5 connected to the movable frame 2 for driving the mounting frame 3 to move horizontally, an arched plate 6 fixedly connected to the upper end of the movable frame 2, a servo motor 7 fixedly connected to the upper end of the base platform 1, a threaded rod 8 fixedly connected to the output end of the servo motor 7 for driving the arched plate 6 to move vertically, a groove 9 is provided on one side of the upper end of the base platform 1, and sliding grooves 10 are provided on both sides of the groove 9, a support plate 11 is slidably connected between the two sliding grooves 10, the table surface of the base platform 1 is flush with the upper end surface of the support plate 11, a plurality of stops 12 are connected at equal intervals along the length direction on one side of the upper end of the support plate 11, and a pressing mechanism 14 for fixing the cardboard on the support plate 11 is connected to the base platform 1.

[0023] Work process:

[0024] When cutting the cardboard, the cardboard is placed on the upper end of the support plate 11, and one side of the cardboard contacts several blocks 12. The support plate 11 containing the cardboard slides from the insertion into the slide groove 10. After the extrusion mechanism 14 is started, the cardboard on the upper end of the support plate 11 is fixed.

[0025] After the first telescopic cylinder 5 is started, it pushes the mounting frame 3 to move a set distance towards the groove 9. The mounting frame 3 drives the cutter group 4 to move. After the cutter group 4 moves a certain distance, it contacts the cardboard. After the cutter group 4 continues to move, it cuts the cardboard. After the cutter group 4 moves a certain distance, it passes through the gap between several blocks 12 to complete the cutting of the cardboard.

[0026] After the slitting is completed, the servo motor 7 drives the threaded rod 8 to rotate clockwise by a set number of revolutions. After the threaded rod 8 rotates, the arched plate 6 moves upward. The arched plate 6 drives the movable frame 2 to move. The movable frame 2 drives the cutter assembly 4 to move upward through the mounting frame 3, so that the cutter assembly 4 is located above the cardboard. The first telescopic cylinder 5 drives the mounting frame 3 to move and reset. The mounting frame 3 drives the cutter assembly 4 to move and reset. During the reset process, the cutter assembly 4 will not move from the cut of the cardboard a second time, so as not to cause cut marks on the cut of the cardboard and improve the slitting effect.

[0027] Servo motor 7 drives threaded rod 8 to rotate counterclockwise to reset the set number of revolutions. After the threaded rod 8 rotates, the arched plate 6 moves downward. The arched plate 6 drives the movable frame 2 to move. The movable frame 2 drives the cutter group 4 to move downward and reset through the mounting frame 3.

[0028] Example 2: The support plate 11 is slidably connected to the slide groove 10. When the cutter assembly 4 cuts the cardboard on the support plate 11, the support plate 11 is prone to sliding. (Refer to...) Figure 4 As another preferred embodiment of the present invention, the difference from embodiment 1 is that a limiting mechanism 13 for fixing the support plate 11 is installed on the groove 9. The limiting mechanism 13 includes a fixing seat 131, which is fixedly connected to the groove 9. An insert plate 132 is rotatably connected to the fixing seat 131. The insert plate 132 is a stainless steel plate. A card seat 133 is fixedly connected to the support plate 11. The insert plate 132 is inserted into the card seat 133.

[0029] After the support plate 11 is slidably connected to the slide groove 10, the insert plate 132 is rotated. After the insert plate 132 rotates at a certain angle, it is inserted into the card holder 133. After the insert plate 132 and the card holder 133 cooperate, the support plate 11 is limited and fixed, so that the support plate 11 will not slide when the cutter group 4 cuts the cardboard on the support plate 11, thus improving the cutting effect.

[0030] Example 3: When fixing the cardboard on the support plate 11, the fixing speed is relatively slow, refer to... Figure 3 As another preferred embodiment of the present invention, the difference from embodiment 1 is that the extrusion mechanism 14 includes a second telescopic cylinder 141, the second telescopic cylinder 141 is fixedly connected to the bottom end of the base platform 1, the telescopic end of the second telescopic cylinder 141 is fixedly connected to a movable plate 142, both sides of the base platform 1 are provided with strip holes 143, one end of each movable plate 142 passes through the strip hole 143 and is fixedly connected to an extrusion plate 144, the movable plate 142 and the extrusion plate 144 are an integral structure, and the bottom end of the extrusion plate 144 is parallel to the upper end of the support plate 11;

[0031] When fixing the cardboard, the second telescopic cylinder 141 drives the movable plate 142 to move downward by a set distance. The movable plate 142 drives the two pressing plates 144 to move downward. The two pressing plates 144 move downward by a set distance to press and fix the upper two sides of the cardboard, and the cardboard is fixed quickly.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cutting device for processing inner cardboard, comprising a base platform (1), a movable frame (2) slidably connected to the upper end of the base platform (1), a mounting frame (3) slidably connected to the movable frame (2), and a cutting blade assembly (4) mounted on the mounting frame (3), characterized in that, in: An arched plate (6) is fixedly connected to the upper end of the movable frame (2), and a servo motor (7) is fixedly connected to the upper end of the base platform (1). A threaded rod (8) for driving the arched plate (6) to move in the vertical direction is fixedly connected to the output end of the servo motor (7). A groove (9) is provided on one side of the upper end of the base platform (1), and sliding grooves (10) are provided on both sides of the groove (9). A support plate (11) is slidably connected between the two sliding grooves (10). An extrusion mechanism (14) for fixing the cardboard on the support plate (11) is connected to the base platform (1).

2. The cutting device for processing inner lining cardboard according to claim 1, characterized in that, The upper side of the support plate (11) is connected with several blocks (12) at equal intervals along the length direction.

3. The cutting device for processing inner lining cardboard according to claim 1, characterized in that, A limiting mechanism (13) for fixing the support plate (11) is installed on the groove (9). The limiting mechanism (13) includes a fixing seat (131), which is fixedly connected to the groove (9). A plug plate (132) is rotatably connected to the fixing seat (131). A card seat (133) is fixedly connected to the support plate (11). The plug plate (132) is inserted into the card seat (133).

4. The cutting device for processing inner lining cardboard according to claim 3, characterized in that, The insert plate (132) is made of stainless steel.

5. The cutting device for processing inner lining cardboard according to claim 1, characterized in that, The platform of the base (1) is flush with the upper surface of the support plate (11).

6. The cutting device for processing inner lining cardboard according to claim 1, characterized in that, The extrusion mechanism (14) includes a second telescopic cylinder (141), which is fixedly connected to the bottom end of the base platform (1). A movable plate (142) is fixedly connected to the telescopic end of the second telescopic cylinder (141). A strip hole (143) is provided on both sides of the base platform (1). One end of each movable plate (142) passes through the strip hole (143) and is fixedly connected to an extrusion plate (144).

7. The cutting device for processing inner lining cardboard according to claim 6, characterized in that, The bottom end of the extrusion plate (144) is parallel to the top end of the support plate (11).

8. The cutting device for processing inner lining cardboard according to claim 7, characterized in that, The movable plate (142) and the extrusion plate (144) are an integral structure.