Carton production flatting die cutting apparatus

By integrating limit wheels, flattening rollers, and die-cutting blades into a carton production flattening and die-cutting device, the problems of extended production cycles and dimensional deviations caused by traditional step-by-step operations have been solved, achieving efficient integrated operation in carton production.

CN224375014UActive Publication Date: 2026-06-19QINGDAO KFD PACKAGING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO KFD PACKAGING CO LTD
Filing Date
2025-07-15
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In traditional cardboard box production, flattening and die-cutting need to be done in separate steps, which leads to a longer production cycle and makes it easy for dimensional deviations to occur due to repeated positioning.

Method used

Design a cardboard box production flattening and die-cutting device, which integrates a limiting wheel, a flattening roller and a die-cutting knife to achieve synchronous limiting, flattening and die-cutting of cardboard boards. The device achieves integrated operation through the coordinated control of an electric telescopic rod and a drive motor.

Benefits of technology

This improved production efficiency, reduced the number of times cardboard boxes were loaded and unloaded, and ensured the dimensional accuracy and production quality of the cardboard boxes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a carton production flatting die cutting device, including device main part, the device main part upper end middle part fixed mounting has die cutting table, the die cutting table outside fixed mounting has the lift electric telescopic link, the lift electric telescopic link upper end telescopic portion fixed mounting has the lift frame, the device main part both ends outside fixed mounting has the vertical groove, the vertical groove inner wall fixed mounting has the vertical limit slide rail, the vertical limit slide rail outside limit and fit movable joint have the limit slide seat, the limit horizontal sliding groove outside fixed mounting has the first drive motor, the first drive motor inboard transmission shaft portion fixed mounting has the synchronous screw rod, the synchronous screw rod both ends outer curved surface screw connection has the sliding block. The utility model realizes to the carton board and carries out the flattening at the same time, and it is convenient to the die cutting of the flattened carton board.
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Description

Technical Field

[0001] This utility model relates to the field of cardboard box production technology, specifically to a cardboard box production flattening and die-cutting device. Background Technology

[0002] Cardboard box production refers to the process of transforming raw paper (such as corrugated paper, white cardboard, etc.) into packaging containers with specific structures, dimensions, and functions through a series of processes. The core objective is to manufacture cardboard box products that can protect goods and facilitate transportation and storage. The main functions of cardboard boxes include:

[0003] Cushioning and Shock Absorption: The corrugated structure of cardboard boxes (such as three-layer or five-layer corrugated) absorbs impact, reducing collision damage during transportation. Moisture and Dust Protection: Through processes such as lamination and waxing, the water resistance of cardboard boxes is improved, protecting goods from environmental impacts. Standardized Sizes: Uniformly sized cardboard boxes facilitate stacking and loading / unloading, improving warehousing and transportation efficiency. Lightweight Design: Compared to wooden or plastic boxes, cardboard boxes are lighter, reducing logistics costs. Low Raw Material Costs: The price of raw paper is far lower than that of wood and plastics. Recycling and Reuse: The recycling rate of waste cardboard boxes exceeds 90%, aligning with green economy principles. Biodegradable Materials: Cardboard boxes are made from natural fibers and decompose naturally after disposal. Circular Economy: Recycled cardboard boxes can be re-pulped for production, reducing deforestation.

[0004] However, in practical applications of existing technology, during the carton production process, the cardboard sheets need to be flattened to eliminate curls and wrinkles before die-cutting. In traditional processes, flattening and die-cutting need to be done in separate steps, resulting in multiple loading and unloading of the cardboard sheets, which prolongs the production cycle. At the same time, repeated positioning during the separate steps can easily cause dimensional deviations, thus affecting the production quality of the carton. Utility Model Content

[0005] The purpose of this utility model is to provide a cardboard box production flattening and die-cutting device to solve the problems mentioned in the background art, where flattening and die-cutting need to be carried out in separate steps, which leads to multiple loading and unloading of cardboard boards, thus extending the production cycle. At the same time, the step-by-step operation is prone to dimensional deviation due to repeated positioning, which affects the production effect of cardboard boxes.

[0006] To achieve the above objectives, this utility model provides the following technical solution: it includes a device body, a die-cutting table is fixedly installed at the middle of the upper end of the device body, a lifting electric telescopic rod is fixedly installed on the outer side of the die-cutting table, a lifting frame is fixedly installed on the upper telescopic part of the lifting electric telescopic rod, vertical grooves are fixedly installed on the outer sides of both ends of the device body, a vertical limiting slide rail is fixedly installed on the inner wall of the vertical groove, and a limiting slide seat is movably connected to the outer side of the vertical limiting slide rail;

[0007] A limiting horizontal slide groove is fixedly installed at the front end of the lifting frame. A first drive motor is fixedly installed on the outer side of the limiting horizontal slide groove. A synchronous lead screw is fixedly installed on the inner drive shaft of the first drive motor. A slider is threadedly connected to the outer curved surface of both ends of the synchronous lead screw. A limiting wheel for limiting the outer side of the carton board is rotatably connected to the lower end of the slider via a pin. A flattening electric telescopic rod is fixedly installed through the front side of the upper end of the lifting frame. A U-shaped frame is fixedly installed on the bottom telescopic part of the flattening electric telescopic rod. A second drive motor is fixedly installed on the outer side of the upper end of the U-shaped frame. A first synchronous wheel is fixedly installed on the outer drive shaft of the second drive motor. A second synchronous wheel is connected to the outer end of the first synchronous wheel via a synchronous belt. A flattening shaft is fixedly installed in the middle of the second synchronous wheel. A flattening roller for flattening the carton board is fixedly installed on the outer curved surface of the flattening shaft. A die-cutting electric telescopic rod is fixedly installed through the rear side of the upper end of the lifting frame. A knife holder is fixedly installed on the bottom telescopic part of the die-cutting electric telescopic rod. A die-cutting knife for die-cutting the carton board is detachably fixedly installed at the lower end of the knife holder.

[0008] Preferably, a feeding roller is rotatably connected to the front upper end of the device body via a rotating shaft, and there are several feeding rollers, which are symmetrically distributed sequentially on the front upper end of the device body.

[0009] Preferably, two support side platforms are fixedly installed on both sides of the upper end of the die-cutting platform, and the number of support side platforms is two, which are symmetrically distributed on both sides of the upper end of the die-cutting platform.

[0010] Preferably, the limiting slide is fixedly installed on the outside of the lifting frame, and the four corners of the lifting frame are movably connected with the first vertical slide rod, and the bottom of the first vertical slide rod is fixedly installed on the upper end of the support side platform.

[0011] Preferably, the opening of the limiting horizontal slide groove faces downward, the synchronous screw is rotatably connected to the inner wall of the limiting horizontal slide groove via a rotating shaft, the outer curved threads at both ends of the synchronous screw face opposite directions, and the slider is movably connected to the inner wall of the limiting horizontal slide groove.

[0012] Preferably, a second vertical slide bar is fixedly installed on both sides of the upper end of the U-shaped frame, and the upper end of the second vertical slide bar is connected to the front side of the upper end of the lifting frame through and fitting.

[0013] Preferably, the flattening shaft is rotatably connected to the lower end of the U-shaped frame via a rotating shaft, and the outer curved surface of the flattening roller is coated with an anti-slip coating.

[0014] Preferably, a third vertical slide bar is fixedly installed on both sides of the upper end of the tool holder, and the upper end of the third vertical slide bar is movably connected to the rear side of the upper end of the lifting frame.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] When the limiting wheel limits the two sides of the carton board, the carton board is pushed backward along the upper end of the feeding roller. When the carton board is pushed backward, the first drive motor is turned on by control. When the first drive motor is turned on, it will drive the synchronous screw to rotate. The outer curved threads at both ends of the synchronous screw are facing opposite directions. When the synchronous screw rotates, the force generated by the threaded connection will synchronously drive the slider to move in a straight line inward. When the slider moves in a straight line inward, it will drive the limiting wheel to move in a straight line inward. When the limiting wheel moves in a straight line inward, it will push the carton board to center. Thus, the carton board is limited while the carton board is pushed to center.

[0017] This invention also enables the activation of a second drive motor when the flattening roller presses the cardboard sheet downwards in a straight line. When the second drive motor is activated, it sequentially drives the flattening roller to rotate. As the flattening roller rotates, it pushes and conveys the flattened cardboard sheet backwards. While the flattened cardboard sheet is being pushed and conveyed backwards, the die-cutting electric telescopic rod is activated and extends downwards. When the die-cutting electric telescopic rod extends downwards, it drives the knife holder to move downwards in a straight line. When the knife holder moves downwards in a straight line, it drives the die-cutting knife to die-cut the flattened cardboard sheet. This allows the cardboard sheet to be flattened while simultaneously being die-cut. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a cardboard box production flattening and die-cutting device according to this utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall structure of a cardboard box production flattening and die-cutting device according to this utility model. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the overall structure of a cardboard box production flattening and die-cutting device according to this utility model. Figure 3 .

[0021] In the diagram: 1. Main body of the device; 2. Feed roller; 3. Die-cutting table; 4. Support side table; 5. Lifting electric telescopic rod; 6. Lifting frame; 7. Vertical groove; 8. Vertical limit slide rail; 9. Limiting slide block; 10. First vertical slide rod; 11. Limiting horizontal slide groove; 12. First drive motor; 13. Synchronous lead screw; 14. Slider; 15. Limiting wheel; 16. Flattening electric telescopic rod; 17. U-shaped frame; 18. Second vertical slide rod; 19. Second drive motor; 20. First synchronous wheel; 21. Second synchronous wheel; 22. Flattening shaft; 23. Flattening roller; 24. Die-cutting electric telescopic rod; 25. Knife holder; 26. Third vertical slide rod; 27. Die-cutting knife. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-3 This utility model provides a technical solution for a cardboard box production flattening and die-cutting device: it includes a device body 1, and a feeding roller 2 is rotatably connected to the upper front side of the device body 1 via a rotating shaft. Several feeding rollers 2 are symmetrically distributed along the upper front side of the device body 1. A die-cutting table 3 is fixedly installed in the middle of the upper part of the device body 1. Supporting side platforms 4 are fixedly installed on both sides of the upper end of the die-cutting table 3. There are two supporting side platforms 4, symmetrically distributed on both sides of the upper end of the die-cutting table 3. A lifting electric telescopic rod 5 is fixedly installed on the outer side of the die-cutting table 3. The telescopic part of the upper end of the lifting electric telescopic rod 5 is fixedly installed with... The device has a lifting frame 6, and vertical grooves 7 are fixedly installed on the outer sides of both ends of the main body 1. Vertical limiting slide rails 8 are fixedly installed on the inner wall of the vertical grooves 7. Limiting slide seats 9 are movably connected to the outer side of the vertical limiting slide rails 8, and the limiting slide seats 9 are fixedly installed on the outer side of the lifting frame 6, so that the lifting frame 6 can be linearly moved and limited by the limiting slide seats 9 in conjunction with the vertical limiting slide rails 8. The four corners of the lifting frame 6 are movably connected to the first vertical slide rods 10, and the bottom of the first vertical slide rods 10 is fixedly installed on the upper end of the support side platform 4, so that the lifting frame 6 can be further linearly moved and limited by the first vertical slide rods 10.

[0024] A limiting horizontal slide groove 11 is fixedly installed at the front end of the lifting frame 6, with the opening of the limiting horizontal slide groove 11 facing downwards. A first drive motor 12 is fixedly installed on the outer side of the limiting horizontal slide groove 11. A synchronous lead screw 13 is fixedly installed on the inner drive shaft of the first drive motor 12, and the synchronous lead screw 13 is rotatably connected to the inner wall of the limiting horizontal slide groove 11 via a rotating shaft. The outer curved surface threads at both ends of the synchronous lead screw 13 face opposite directions. Slider blocks 14 are connected to the outer curved surface threads at both ends of the synchronous lead screw 13, and the sliders 14 are movably connected to the limiting horizontal slide groove 11. The inner wall allows the slider 14 to move linearly and be limited by the limiting horizontal slide groove 11. The lower end of the slider 14 is rotatably connected to a limiting wheel 15 for limiting the outer side of the carton board via a pin. A flattening electric telescopic rod 16 is fixedly installed through the front side of the upper end of the lifting frame 6. A U-shaped frame 17 is fixedly installed on the bottom telescopic part of the flattening electric telescopic rod 16. Second vertical slide rods 18 are fixedly installed on both sides of the upper end of the U-shaped frame 17, and the upper end of the second vertical slide rods 18 is movably connected through and fits against the front side of the upper end of the lifting frame 6, so that the second vertical slide rods 18 can be used to limit the linear movement of the slider 14 via the limiting horizontal slide groove 11. The slide bar 18 limits the linear movement of the U-shaped frame 17. A second drive motor 19 is fixedly installed on the outer side of the upper end of the U-shaped frame 17. A first synchronous pulley 20 is fixedly installed on the outer drive shaft of the second drive motor 19. The outer end of the first synchronous pulley 20 is connected to a second synchronous pulley 21 via a synchronous belt. A flattening shaft 22 is fixedly installed in the middle of the second synchronous pulley 21. The flattening shaft 22 is rotatably connected to the lower end of the U-shaped frame 17 via a rotating shaft. A flattening roller 23 for flattening the cardboard is fixedly installed on the outer curved surface of the flattening shaft 22. The outer curved surface of the flattening roller 23 is coated with an anti-slip coating. A die-cutting electric telescopic rod 24 is fixedly installed through the rear side of the upper end of the lifting frame 6. A knife holder 25 is fixedly installed at the bottom telescopic part of the die-cutting electric telescopic rod 24. A third vertical slide rod 26 is fixedly installed on both sides of the upper end of the knife holder 25. The upper end of the third vertical slide rod 26 is connected to the rear side of the upper end of the lifting frame 6 through the third vertical slide rod 26, so that the knife holder 25 can be linearly moved and limited by the third vertical slide rod 26. A die-cutting knife 27 for die-cutting the carton board is detachably fixedly installed at the lower end of the knife holder 25.

[0025] Working principle: In use, this utility model retracts by controlling the opening of the electric telescopic lifting rod 5. When the electric telescopic lifting rod 5 retracts, it drives the lifting frame 6 to move downward in a straight line. When the lifting frame 6 moves downward in a straight line, it drives the limiting horizontal slide 11 to move downward in a straight line. When the limiting horizontal slide 11 moves downward in a straight line, it simultaneously drives the limiting wheel 15 to move downward in a straight line. When the limiting wheel 15 moves downward in a straight line, it limits both sides of the cardboard to be die-cut. When the limiting wheel 15 limits both sides of the cardboard, it pushes the cardboard backward along the upper end of the feeding roller 2. When the cardboard moves backward... When pushing, the first drive motor 12 is turned on by control. When the first drive motor 12 is turned on, it will drive the synchronous screw 13 to rotate. The outer curved threads at both ends of the synchronous screw 13 are facing opposite directions. When the synchronous screw 13 rotates, the force generated by the threaded connection will synchronously drive the slider 14 to move in a straight line inward. When the slider 14 moves in a straight line inward, it will drive the limit wheel 15 to move in a straight line inward. When the limit wheel 15 moves in a straight line inward, it will push the carton board to center, thereby limiting the carton board while facilitating the pushing and centering of the carton board.

[0026] When the cardboard is pushed to center, the electric flattening telescopic rod 16 is extended downwards by control. When the electric flattening telescopic rod 16 extends downwards, it drives the U-shaped frame 17 to move downwards in a straight line. When the U-shaped frame 17 moves downwards in a straight line, it simultaneously drives the flattening roller 23 to move downwards and press the cardboard. When the flattening roller 23 presses the cardboard downwards in a straight line, the second drive motor 19 is activated by control. When the second drive motor 19 is activated, it drives the first synchronous pulley 20 to rotate. When the first synchronous pulley 20 rotates, it drives the second synchronous pulley 21 to rotate via a synchronous belt drive. When 21 rotates, it drives the flattening shaft 22 to rotate. When the flattening shaft 22 rotates, it drives the flattening roller 23 to rotate. When the flattening roller 23 rotates, it pushes the flattened carton board backward. When the flattened carton board is pushed backward, the die-cutting electric telescopic rod 24 is extended downward by control. When the die-cutting electric telescopic rod 24 extends downward, it drives the knife holder 25 to move downward in a straight line. When the knife holder 25 moves downward in a straight line, it drives the die-cutting knife 27 to die-cut the flattened carton board, thereby realizing the flattening of the carton board while facilitating the die-cutting of the flattened carton board.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] 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 carton production flattening die cutting apparatus characterized by: The device includes a main body (1), a die-cutting table (3) is fixedly installed at the middle of the upper end of the main body (1), a lifting electric telescopic rod (5) is fixedly installed on the outer side of the die-cutting table (3), a lifting frame (6) is fixedly installed on the upper telescopic part of the lifting electric telescopic rod (5), vertical grooves (7) are fixedly installed on the outer sides of both ends of the main body (1), a vertical limiting slide rail (8) is fixedly installed on the inner wall of the vertical groove (7), and a limiting slide seat (9) is movably connected to the outer side of the vertical limiting slide rail (8). The lifting frame (6) is fixedly installed with a limiting horizontal slide groove (11) at its front end. A first drive motor (12) is fixedly installed on the outside of the limiting horizontal slide groove (11). A synchronous screw (13) is fixedly installed on the inner drive shaft of the first drive motor (12). A slider (14) is connected to the outer curved surface thread at both ends of the synchronous screw (13). A limiting wheel (15) for limiting the outer side of the carton board is rotatably connected to the lower end of the slider (14) through a pin shaft. A flattening electric telescopic rod (16) is fixedly installed through the front side of the upper end of the lifting frame (6). A U-shaped frame (17) is fixedly installed on the bottom telescopic part of the flattening electric telescopic rod (16). A first drive motor (12) is fixedly installed on the outer side of the upper end of the U-shaped frame (17). Two drive motors (19) are used. A first synchronous wheel (20) is fixedly installed on the outer drive shaft of the second drive motor (19). A second synchronous wheel (21) is connected to the outer end of the first synchronous wheel (20) via a synchronous belt. A flattening shaft (22) is fixedly installed in the middle of the second synchronous wheel (21). A flattening roller (23) for flattening the carton board is fixedly installed on the outer curved surface of the flattening shaft (22). A die-cutting electric telescopic rod (24) is fixedly installed through the rear side of the upper end of the lifting frame (6). A knife holder (25) is fixedly installed on the telescopic part at the bottom of the die-cutting electric telescopic rod (24). A die-cutting knife (27) for die-cutting the carton board is detachably fixedly installed at the lower end of the knife holder (25).

2. A flatting die cutting apparatus for carton production as claimed in claim 1 wherein: The upper front side of the main body (1) of the device is rotatably connected to a feed roller (2) via a rotating shaft. There are several feed rollers (2), which are symmetrically distributed on the upper front side of the main body (1).

3. The cardboard box production flattening and die-cutting device according to claim 2, characterized in that: The die-cutting table (3) has two support side platforms (4) fixedly installed on both sides of its upper end. The support side platforms (4) are symmetrically distributed on both sides of the upper end of the die-cutting table (3).

4. The cardboard box production flattening and die-cutting device according to claim 3, characterized in that: The limiting slide (9) is fixedly installed on the outside of the lifting frame (6). The four corners of the lifting frame (6) are connected to the first vertical slide rod (10) through and fit together. The bottom of the first vertical slide rod (10) is fixedly installed on the upper end of the support side platform (4).

5. The cardboard box production flattening and die-cutting device according to claim 4, characterized in that: The limiting horizontal slide groove (11) has an opening facing downwards. The synchronous screw (13) is rotatably connected to the inner wall of the limiting horizontal slide groove (11) via a rotating shaft. The outer curved threads at both ends of the synchronous screw (13) face opposite directions. The slider (14) is movably connected to the inner wall of the limiting horizontal slide groove (11).

6. The cardboard box production flattening and die-cutting device according to claim 5, characterized in that: The upper sides of the U-shaped frame (17) are fixedly installed with second vertical slide rods (18), and the upper end of the second vertical slide rods (18) is connected to the front side of the upper end of the lifting frame (6) through and fitting.

7. A cardboard box production flattening and die-cutting device according to claim 6, characterized in that: The flattening shaft (22) is rotatably connected to the lower end of the U-shaped frame (17) through a rotating shaft, and the outer curved surface of the flattening roller (23) is coated with an anti-slip coating.

8. The cardboard box production flattening and die-cutting device according to claim 7, characterized in that: The upper sides of the tool holder (25) are fixedly installed with a third vertical slide rod (26), and the upper end of the third vertical slide rod (26) is connected to the upper rear side of the lifting frame (6) through and fitting.