Line pressing device for carton packaging production

By designing an electric telescopic rod and an adjustable clamping plate mechanism within the U-shaped frame, the problems of inconvenient manual material handling and inaccurate cardboard positioning in traditional cardboard packaging production have been solved. This has enabled automatic material feeding and a creasing device that adapts to different cardboard widths, thereby improving production efficiency and creasing quality.

CN224170586UActive Publication Date: 2026-04-28LIAOCHENG HONGYUE COLOR PRINTING & PACKAGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIAOCHENG HONGYUE COLOR PRINTING & PACKAGING CO LTD
Filing Date
2025-05-26
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Traditional creasing devices used in cardboard packaging production suffer from problems such as inconvenience in manual material handling, inability to automatically discharge materials, and difficulty in adapting to different widths of cardboard, resulting in low efficiency and unstable creasing quality.

Method used

A crease pressing device was designed, comprising a U-shaped frame, an electric telescopic rod, a drive motor, a threaded rod, and crease rollers. The electric telescopic rod drives the crease rollers to move, and combined with an adjustable clamping plate and an automatic pusher mechanism, it realizes automatic paperboard feeding and positioning to adapt to different paperboard widths.

Benefits of technology

It enables automatic unloading of cardboard after crimping, improving production efficiency and adapting to different cardboard widths, thus enhancing crimping quality and expanding the equipment's applicability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a carton packaging production line pressing device which comprises a U-shaped frame, the two sides of the bottom of an inner cavity of the U-shaped frame are jointly and fixedly connected with a line pressing frame through connecting pieces, first sliding grooves are formed in the upper portions of the two sides of the inner cavity of the U-shaped frame, and first sliding blocks are installed in the first sliding grooves in a sliding mode. The utility model relates to the technical field of carton pressing lines. According to the line pressing device for carton packaging production, through mutual cooperation of a second L-shaped rod, a second tooth plate, a rotating gear, a first tooth plate, a movable plate, a push plate, a positioning rod, a first spring and a second spring, after a line pressing wheel completes line pressing on a paperboard, an electric telescopic rod retracts to drive the line pressing wheel to move upwards; and when the driving motor rotates reversely to drive the internal thread cylinder and the connecting roller to reset, the paperboard subjected to line pressing can be automatically pushed backwards by a certain distance through the push plate, so that the paperboard is partially separated from the U-shaped frame and is convenient to take, and the production efficiency is improved to a certain extent.
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Description

Technical Field

[0001] This utility model relates to the field of carton creasing technology, specifically a creasing device for carton packaging production. Background Technology

[0002] In the modern packaging industry, cardboard boxes are a widely used packaging material, and the creasing process is crucial in their production. The creasing process makes the cardboard boxes more regular and accurate when folded and formed, ensuring that the cardboard boxes have good structural strength and appearance quality, and meeting the packaging needs of different products.

[0003] In traditional cardboard box packaging production, creasing devices often require workers to bend over and reach into the gaps in the equipment to retrieve cardboard, making it difficult to remove the cardboard after creasing and resulting in low efficiency. At the same time, the fixed baffles used to fix the cardboard are difficult to adjust flexibly for cardboards of different widths. When creasing cardboards of different widths, they cannot be effectively positioned, which may cause the cardboard to shift during the creasing process, thus affecting the creasing quality. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a creasing device for carton packaging production, which solves the problem that traditional creasing devices for carton packaging production do not have automatic material discharge.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a creasing device for carton packaging production, comprising a U-shaped frame, wherein creasing frames are fixedly connected to both sides of the bottom of the U-shaped frame's inner cavity via connectors; a first sliding groove is provided on the upper part of both sides of the U-shaped frame's inner cavity, and a first slider is slidably installed inside the first sliding groove; a horizontal plate is fixedly connected between the two first sliders; a fixed plate is fixedly connected between the tops of both sides of the U-shaped frame's inner cavity; an electric telescopic rod is installed on the top of the fixed plate via connectors; the telescopic end of the electric telescopic rod is fixedly connected to the top of the horizontal plate; and a connection is provided at the bottom of the fixed plate for connection with the electric telescopic rod. A through groove is used in conjunction with a telescopic rod. A drive motor is fixedly installed on the top of the horizontal plate. The output end of the drive motor is fixedly connected to a first threaded rod via a coupling. The end of the first threaded rod is rotatably connected to a stabilizing plate via a rotating component. The bottom of the stabilizing plate is fixedly connected to the top of the horizontal plate. A threaded sleeve is threadedly connected to the surface of the first threaded rod. A vertical rod is fixedly connected to the bottom of the threaded sleeve. A long groove is opened on the top of the horizontal plate to cooperate with the vertical rod. An internal threaded cylinder is fixedly connected to the bottom end of the vertical rod. A connecting roller is threadedly connected to the inside of the internal threaded cylinder. Pressure rollers are sleeved on both sides of the outer periphery of the connecting roller via rotating components.

[0006] Preferably, a sliding plate is fixedly connected to the bottom of the pressure frame, a second slider is slidably installed inside the sliding plate, a positioning rod is fixedly connected to the bottom of the second slider, a moving plate is sleeved and slidably connected to the outer periphery of the positioning rod, a push plate is fixedly connected to the top of one side of the moving plate, and an opening is provided on the top of the pressure frame to cooperate with the push plate.

[0007] Preferably, a telescopic cylinder is fixedly connected to the other side of the rear of the movable plate via a connecting block. A first L-rod is slidably connected inside the telescopic cylinder. A second sliding groove is provided on one side of the inner cavity of the U-shaped frame. A third slider is slidably installed inside the second sliding groove. One side of the third slider is fixedly connected to the first L-rod via a connecting block. A first toothed plate is fixedly connected to the first L-rod. A rotating gear that meshes with the first toothed plate is rotatably connected to one side of the inner cavity of the U-shaped frame and below the first toothed plate via a rotating component. A second L-rod that cooperates with the movable plate is fixedly connected to one side of the internally threaded cylinder via a connecting block. A second toothed plate that cooperates with the rotating gear is fixedly connected to the second L-rod.

[0008] Preferably, a limiting block is fixedly connected to the bottom end of the positioning rod, a first spring is sleeved on the outer periphery of the positioning rod between the moving plate and the limiting block, and a second spring is fixedly connected between the front side of the inner cavity of the slide plate and the front side of the second slider.

[0009] Preferably, both sides of the pressure frame are threaded with second threaded rods through threaded grooves, and the opposite ends of the two second threaded rods are rotatably connected to clamps through rotating parts.

[0010] This utility model provides a creasing device for carton packaging production. It has the following advantages:

[0011] (1) Through the cooperation of the second L rod, the second toothed plate, the rotating gear, the first toothed plate, the moving plate, the push plate, the positioning rod, the first spring and the second spring, the pressure roller can move upward after the electric telescopic rod retracts after the pressure roller has finished pressing the cardboard. At the same time, the drive motor reverses to reset the internal threaded cylinder and the connecting roller, and the push plate can automatically push the cardboard that has been pressed backward a distance, so that the cardboard is partially removed from the U-shaped frame, making it easier to pick up and improving production efficiency to a certain extent.

[0012] (2) By setting an adjustable clamp, the position of the clamp can be adjusted in advance by rotating the second threaded rod according to different specifications of paperboard, thereby stabilizing the paperboard, improving the adaptability to different paperboards, and expanding the scope of application; the inner threaded cylinder and the connecting roller are connected by threads, which facilitates the replacement of the pressure roller. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0015] Figure 3 This is a top view of the present invention in the state where the cardboard has been crimped.

[0016] Figure 4 This is a side view of the horizontal plate, drive motor, first threaded rod, stabilizing plate and vertical rod structure of this utility model;

[0017] Figure 5 This is a side view of the internal structure of the slide plate and positioning rod of this utility model;

[0018] Figure 6 This utility model Figure 2 A magnified view of a section at point A in the middle;

[0019] Figure 7 This utility model Figure 2 A magnified view of a section at point B in the middle;

[0020] In the diagram, 1. U-shaped frame; 2. Pressing frame; 3. First slide groove; 4. First slider; 5. Horizontal plate; 6. Electric telescopic rod; 7. Drive motor; 8. First threaded rod; 9. Stabilizing plate; 10. Threaded sleeve; 11. Vertical rod; 12. Internal threaded cylinder; 13. Connecting roller; 14. Pressing wheel; 15. Slide groove plate; 16. Second slider; 17. Positioning rod; 18. Moving plate; 19. Push plate; 20. Telescopic cylinder; 21. First L-rod; 22. Second slide groove; 23. First toothed plate; 24. Rotating gear; 25. Second L-rod; 26. Second toothed plate; 27. Limiting block; 28. First spring; 29. ​​Second spring; 30. Second threaded rod; 31. Clamping plate; 32. Third slider; 33. Fixing plate. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] Please see Figure 1-7This utility model provides a technical solution: a creasing device for carton packaging production, including a U-shaped frame 1. A creasing frame 2 is fixedly connected to both sides of the bottom of the inner cavity of the U-shaped frame 1 via connectors. The top of the inner cavity of the creasing frame 2 is provided with anti-slip texture to prevent the cardboard from moving during the creasing process. First grooves 3 are provided on the upper parts of both sides of the inner cavity of the U-shaped frame 1. First sliders 4 are slidably installed inside the first grooves 3. A horizontal plate 5 is fixedly connected between the two first sliders 4. A fixing plate 33 is fixedly connected between the tops of both sides of the inner cavity of the U-shaped frame 1. An electric telescopic rod 6 is installed on the top of the fixing plate 33 via connectors. The electric telescopic rod 6 is powered by an external power source. The telescopic end of the electric telescopic rod 6 is fixedly connected to the top of the horizontal plate 5. A groove is provided at the bottom of the fixing plate 33 for connection with the electric telescopic rod. The horizontal plate 5 has a through slot for use with the 6 components. A drive motor 7 is fixedly installed on the top of the horizontal plate 5. The drive motor 7 is powered by an external power source. The output end of the drive motor 7 is fixedly connected to a first threaded rod 8 via a coupling. The end of the first threaded rod 8 is rotatably connected to a stabilizing plate 9 via a rotating component. The bottom of the stabilizing plate 9 is fixedly connected to the top of the horizontal plate 5. A threaded sleeve 10 is threadedly connected to the surface of the first threaded rod 8. A vertical rod 11 is fixedly connected to the bottom of the threaded sleeve 10. A long slot is opened on the top of the horizontal plate 5 to cooperate with the vertical rod 11. An internal threaded cylinder 12 is fixedly connected to the bottom of the vertical rod 11. A connecting roller 13 is threadedly connected to the inside of the internal threaded cylinder 12. A fastening screw is threadedly connected to the front side of the internal threaded cylinder 12 via a threaded hole. Pressure rollers 14 are sleeved on both sides of the outer periphery of the connecting roller 13 via rotating components.

[0023] Furthermore, in order to achieve automatic material discharge after the cardboard is crimped, a slide plate 15 is fixedly connected to the bottom of the crimping frame 2. A second slider 16 is slidably installed inside the slide plate 15. A positioning rod 17 is fixedly connected to the bottom of the second slider 16. A moving plate 18 is sleeved and slidably connected to the outer periphery of the positioning rod 17. A push plate 19 is fixedly connected to the top of one side of the moving plate 18. An opening is provided on the top of the crimping frame 2 to cooperate with the push plate 19.

[0024] A telescopic cylinder 20 is fixedly connected to the other side of the rear of the movable plate 18 via a connecting block. A first L-rod 21 is slidably connected inside the telescopic cylinder 20. A second slide groove 22 is provided on one side of the inner cavity of the U-shaped frame 1. A third slider 32 is slidably installed inside the second slide groove 22. One side of the third slider 32 is fixedly connected to the first L-rod 21 via a connecting block. A first toothed plate 23 is fixedly connected to the first L-rod 21. A rotating gear 24 that meshes with the first toothed plate 23 is rotatably connected to one side of the inner cavity of the U-shaped frame 1 and below the first toothed plate 23 via a rotating component. A second L-rod 25 that cooperates with the movable plate 18 is fixedly connected to one side of the internal threaded cylinder 12 via a connecting block. A second toothed plate 26 that cooperates with the rotating gear 24 is fixedly connected to the second L-rod 25.

[0025] The bottom end of the positioning rod 17 is fixedly connected to the limiting block 27. A first spring 28 is sleeved on the outer periphery of the positioning rod 17 and between the moving plate 18 and the limiting block 27. A second spring 29 is fixedly connected between the front side of the inner cavity of the slide plate 15 and the front side of the second slider 16.

[0026] Furthermore, in order to accommodate cardboard of different widths, both sides of the creasing frame 2 are threaded with second threaded rods 30 through threaded grooves, and the opposite ends of the two second threaded rods 30 are rotatably connected to clamps 31 through rotating parts.

[0027] During operation, screw the connecting roller 13 into the internal threaded cylinder 12 in advance, then tighten the fastening screws and install the pressure roller 14.

[0028] When creasing the cardboard, first adjust the position of the clamping plate 31 by rotating the second threaded rod 30 to match the width of the cardboard, and then place the cardboard on the creasing frame 2. At this time, the push plate 19 is below the cardboard.

[0029] Start the electric telescopic rod 6. The telescopic end of the electric telescopic rod 6 drives the horizontal plate 5 downward, causing the internal threaded cylinder 12, connecting roller 13, and pressing wheel 14 to move downward together. During this process, the second L rod 25 will abut against the moving plate 18, causing the moving plate 18 to press the first spring 28 downward. The moving plate 18 drives the push plate 19 to move below the pressing frame 2. When the pressing wheel 14 moves to the designated position, start the drive motor 7. The drive motor 7 drives the first threaded rod 8 to rotate. The first threaded rod 8, through the threaded sleeve 10, causes the vertical rod 11 to drive the internal threaded cylinder 12 to move backward. The internal threaded cylinder 12 drives the connecting roller 13 and pressing wheel 14 to move backward. During this process, the pressing wheel 14... Rolling on the cardboard, the cardboard is crimped to create creases that facilitate folding. Simultaneously, as the internal threaded cylinder 12 moves backward, it drives the second L-rod 25 to move backward, separating it from the moving plate 18. Under the elastic force of the first spring 28, the push plate 19 moves upward to reset. During this process, the second spring 29 contracts and resets, pulling the second slider 16 to slide forward inside the slide plate 15. The second slider 16 drives the positioning rod 17 to move the moving plate 18 forward. The moving plate 18, through the telescopic cylinder 20, causes the first L-rod 21 to drive the first toothed plate 23 to move forward. At this time, the push plate 19 is located in front of the cardboard.

[0030] After the cardboard is crimped, the electric telescopic rod 6 retracts and resets, the crimping wheel 14 disengages from the cardboard, the drive motor 7 reverses, causing the first threaded rod 8 to rotate in the opposite direction, the threaded sleeve 10 drives the inner threaded cylinder 12 and the connecting roller 13 to move forward, the second L rod 25 drives the second toothed plate 26 to move forward, when the second toothed plate 26 meshes with the rotating gear 24, the movement of the second toothed plate 26 drives the first toothed plate 23 to move backward through the rotating gear 24, the first toothed plate 23 causes the moving plate 18 to move backward through the first L rod 21 and the telescopic cylinder 20, the moving plate 18 drives the push plate 19 to push the crimped cardboard backward a distance, so that part of the cardboard is disengaged from the U-shaped frame 1 for easy handling, during the process of the moving plate 18 driving the push plate 19 to move backward, the positioning rod 17 drives the second slider 16 to stretch the second spring 29.

Claims

1. A creasing device for carton packaging production, comprising a U-shaped frame (1), characterized in that: The bottom of the U-shaped frame (1) is fixedly connected to the wire frame (2) on both sides by connectors. The upper part of both sides of the U-shaped frame (1) is provided with a first sliding groove (3). A first slider (4) is slidably installed inside the first sliding groove (3). A horizontal plate (5) is fixedly connected between the two first sliders (4). A fixing plate (33) is fixedly connected between the top of both sides of the U-shaped frame (1). An electric telescopic rod (6) is installed on the top of the fixing plate (33) by connectors. The telescopic end of the electric telescopic rod (6) is fixedly connected to the top of the horizontal plate (5). The bottom of the fixing plate (33) is provided with a through groove for use with the electric telescopic rod (6). A drive motor is fixedly installed on the top of the horizontal plate (5). 7) The output end of the drive motor (7) is fixedly connected to the first threaded rod (8) through a coupling. The end of the first threaded rod (8) is rotatably connected to the stabilizing plate (9) through a rotating part. The bottom of the stabilizing plate (9) is fixedly connected to the top of the horizontal plate (5). The surface of the first threaded rod (8) is threadedly connected to the threaded sleeve (10). The bottom of the threaded sleeve (10) is fixedly connected to the vertical rod (11). The top of the horizontal plate (5) is provided with a long groove that cooperates with the vertical rod (11). The bottom end of the vertical rod (11) is fixedly connected to the internal threaded cylinder (12). The internal threaded cylinder (12) is threadedly connected to the connecting roller (13). The two sides of the outer periphery of the connecting roller (13) are fitted with pressure rollers (14) through rotating parts.

2. The creasing device for carton packaging production according to claim 1, characterized in that: The bottom of the pressure frame (2) is fixedly connected to a sliding plate (15), and a second slider (16) is slidably installed inside the sliding plate (15). The bottom of the second slider (16) is fixedly connected to a positioning rod (17). A moving plate (18) is sleeved and slidably connected to the outer periphery of the positioning rod (17). A push plate (19) is fixedly connected to the top of one side of the moving plate (18). The top of the pressure frame (2) has an opening that cooperates with the push plate (19).

3. The creasing device for carton packaging production according to claim 2, characterized in that: The other side of the rear of the movable plate (18) is fixedly connected to a telescopic cylinder (20) via a connecting block. The telescopic cylinder (20) is slidably connected to a first L rod (21). A second slide groove (22) is provided on one side of the inner cavity of the U-shaped frame (1). A third slider (32) is slidably installed inside the second slide groove (22). One side of the third slider (32) is fixedly connected to the first L rod (21) via a connecting block. A first toothed plate (23) is fixedly connected to the first L rod (21). A rotating gear (24) that meshes with the first toothed plate (23) is rotatably connected to one side of the inner cavity of the U-shaped frame (1) and below the first toothed plate (23) via a rotating component. A second L rod (25) that cooperates with the movable plate (18) is fixedly connected to one side of the internal threaded cylinder (12) via a connecting block. A second toothed plate (26) that cooperates with the rotating gear (24) is fixedly connected to the second L rod (25).

4. A creasing device for carton packaging production according to claim 3, characterized in that: The bottom end of the positioning rod (17) is fixedly connected to the limiting block (27). A first spring (28) is sleeved on the outer periphery of the positioning rod (17) and between the moving plate (18) and the limiting block (27). A second spring (29) is fixedly connected between the front side of the inner cavity of the slide plate (15) and the front side of the second slider (16).

5. A creasing device for carton packaging production according to claim 1, characterized in that: Both sides of the pressure frame (2) are threaded with second threaded rods (30) through threaded grooves, and the opposite ends of the two second threaded rods (30) are rotatably connected with clamps (31) through rotating parts.