A kind of paper shell processing die cutting device
By setting an anti-warping plate and a buffer spring structure at the bottom of the die-cutting table, the problem of cardboard warping during cutting is solved, achieving a flat cardboard surface and precise positioning of the die-cutting blade, thus improving the aesthetics and production efficiency of cardboard processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI JINJIA PACKAGING CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-06-26
AI Technical Summary
Existing water-based ink printing and die-cutting equipment for cardboard boxes is inefficient and prone to damaging parts when changing die-cutting rollers. When cutting cardboard, the sides of the cardboard tend to curl up, resulting in unevenness and affecting the product's appearance and stability.
The die-cutting table features a floating anti-tilting plate at the bottom, combined with an "8"-shaped docking seat and a buffer spring structure. This ensures that the cardboard surface remains flat during cutting, while the buffer spring reduces impact force, provides precise positioning, and prevents wobbling and deviation.
It improves the aesthetics and stability of cardboard cutting, reduces warping and wrinkles, increases product qualification rate and production efficiency, and extends equipment life.
Smart Images

Figure CN224407879U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of paper shell processing, specifically a die-cutting device for paper shell processing. Background Technology
[0002] A water-based ink printing die-cutting device for cardboard boxes is an auxiliary device used in the production and processing of cardboard boxes. After the cardboard for cardboard box processing is printed with water-based ink on printing equipment, the die-cutting equipment cuts the cardboard into specific shapes for later use. It has been widely used in the field of die-cutting equipment technology. In the prior art, a patent application with application number 202010521380.9 discloses a die-cutting device for printed materials, which improves the cleaning effect by adjusting the height through a motor screw. In the use of existing water-based ink printing die-cutting devices for cardboard boxes, the cardboard is cut into shapes corresponding to the patterns on the die-cutting rollers through the cooperation of support rollers and die-cutting rollers. However, the die-cutting rollers of existing die-cutting devices are mostly directly fixed to the equipment. When cutting cardboard of different shapes, it is necessary to disassemble the equipment extensively and then replace the die-cutting rollers. This is inefficient and can easily damage parts during the replacement process, affecting the normal operation of the equipment. In addition, the stability of existing equipment in cutting cardboard is generally poor.
[0003] To address the aforementioned issues, a search revealed Chinese patent CN218928020U, which discloses a water-based ink printing and die-cutting device for cardboard boxes. In this device, a second motor drives a conveyor wheel to rotate, transporting the cardboard to the right through the gap between the die-cutting roller and the support roller. A first motor drives the die-cutting roller to rotate and cut the cardboard into shape. The cut cardboard falls to the right onto a collection platform for collection. The die-cutting roller can be quickly replaced via a top plate and fixing bolts, offering high flexibility. The device includes a base, a base column, and a fixing frame. The base column is fixedly located at the bottom of the base, and the fixing frame is fixedly located at the top of the base. It also includes support rollers, a die-cutting mechanism, a conveying and guiding mechanism, and a collection mechanism. The support rollers are rotatably positioned in the middle of the fixing frame.
[0004] While the aforementioned device allows for quick replacement of the die-cutting rollers via the top plate and fixing bolts, offering high flexibility, a simple overall structure, convenient operation, and strong practicality, in actual use, when cutting cardboard with a cutting device, the sides of the cut area on the cardboard are prone to curling up. These curled edges cause unevenness on the cardboard surface, resulting in noticeable "wrinkles" or "curled edges," directly reducing the product's aesthetic appeal. Utility Model Content
[0005] The purpose of this invention is to provide a die-cutting device for processing chemical paperboard, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, a die-cutting device for processing cardboard is provided, including a die-cutting table with a through hole inside. A docking seat is installed at the bottom of the die-cutting table, and a die-cutting blade is fixedly installed at the bottom of the docking seat. An anti-tilting plate is installed below the die-cutting blade, and a floating seat is fixedly installed on the upper surface of the anti-tilting plate. The floating seat is located on the back of the die-cutting table, and an upper positioning seat is screwed onto the upper side of the back of the die-cutting table, and a lower positioning seat is screwed onto the lower side of the back of the die-cutting table.
[0007] Furthermore, a fixed base is fixedly installed on the top of the die-cutting table. The fixed base is L-shaped and is fixed to the output end of the drive cylinder of the die-cutting device. Two sets of slots are opened on the fixed base.
[0008] Furthermore, the bottom of the die-cutting table is provided with a docking groove, and a docking seat is fixedly provided on the top of the die-cutting blade. The dimensions of the docking seat and the docking groove are compatible.
[0009] Furthermore, the docking seat is inserted inside the docking groove. Both the docking seat and the docking groove have a figure-eight cross-section. The docking seat is inserted inside the docking groove and is fixedly connected by multiple sets of equally spaced fixing bolts.
[0010] Furthermore, both the upper and lower positioning seats are L-shaped, and a buffer space is provided between the upper and lower positioning seats. A buffer seat is fixedly installed on the top of the floating seat, and two sets of positioning holes are opened inside the buffer seat.
[0011] Furthermore, two sets of positioning rods are evenly fixed between the upper positioning seat and the lower positioning seat, and buffer springs are sleeved on the upper side of both sets of positioning rods. The positioning rods are inserted into the positioning holes.
[0012] Furthermore, the floating seat has multiple sets of holes equidistantly spaced, and the anti-tilting plate at the bottom of the floating seat is rectangular, with a length greater than the length of the die-cutting blade.
[0013] Furthermore, the anti-warping plate has a die-cutting space inside. The die-cutting space is rectangular and is located directly below the die-cutting blade. The die-cutting blade moves downward through the die-cutting space to die-cut the cardboard.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. In this solution, as the die-cutting table moves downward, the die-cutting blade at its bottom can cut the cardboard covering the worktable. When cutting the cardboard, the anti-tilting plate floating at the bottom of the die-cutting table can cover the surface of the cardboard during the cutting process. This allows the cut area of the cardboard to be pressed down by the anti-tilting plate, making the cardboard surface flat and avoiding obvious "wrinkles" or "curling edges", thus increasing the aesthetics of the product.
[0016] 2. This solution uses an "8"-shaped docking seat to provide precise and secure positioning for the die-cutting blade, making the installation position of the die-cutting blade more accurate and reducing installation errors; it enhances the stability of the die-cutting blade during operation, preventing it from shaking or shifting during the cutting process, thereby ensuring the consistency of each die-cutting, further improving the product qualification rate and aesthetics; at the same time, it facilitates the quick replacement of worn die-cutting blades. Attached Figure Description
[0017] Figure 1 This is a front view schematic diagram of the structure of this utility model;
[0018] Figure 2 for Figure 1 A bottom view;
[0019] Figure 3 for Figure 1 Top view;
[0020] Figure 4 for Figure 1 Rear view;
[0021] Figure 5 for Figure 1 Cross-sectional view.
[0022] The following are the labels in the diagram: 1. Fixed seat; 2. Die-cutting table; 3. Through hole; 4. Upper positioning seat; 5. Buffer spring; 6. Floating seat; 7. Lower positioning seat; 8. Docking groove; 9. Docking seat; 10. Die-cutting blade; 11. Anti-warping plate; 12. Die-cutting space; 13. Positioning rod. Detailed Implementation
[0023] Please see Figure 1-5 This utility model provides a die-cutting device for processing chemical paperboard, including a die-cutting table 2, a through hole 3 through the interior of the die-cutting table 2, a docking seat 9 installed at the bottom of the die-cutting table 2, a die-cutting blade 10 fixedly installed at the bottom of the docking seat 9, an anti-warping plate 11 installed below the die-cutting blade 10, a floating seat 6 fixedly installed on the upper surface of the anti-warping plate 11, the floating seat 6 is located on the back of the die-cutting table 2, an upper positioning seat 4 is screwed to the upper back of the die-cutting table 2, and a lower positioning seat 7 is screwed to the lower back of the die-cutting table 2.
[0024] Working principle: This device is integrated into the cardboard processing machine. The cylinder on the machine can drive the die-cutting table 2 to rise and fall. When the die-cutting table 2 moves downward, it can cut the cardboard covering the worktable through the die-cutting blade 10 at its bottom. When cutting the cardboard, the anti-tilting plate 11 floating at the bottom of the die-cutting table 2 can cover the surface of the cardboard when it is being cut. This allows the cut position of the cardboard to be pressed by the anti-tilting plate 11, making the cardboard surface flat and avoiding obvious "wrinkles" or "curling edges", thus increasing the aesthetics of the product.
[0025] As a preferred embodiment, a fixing seat 1 is fixedly installed on the top of the die-cutting table 2. The fixing seat 1 is L-shaped and is fixed to the output end of the drive cylinder of the die-cutting device. Two sets of slots are provided on the fixing seat 1.
[0026] The bottom of the die-cutting table 2 is provided with a docking groove 8, and the top of the die-cutting blade 10 is fixedly provided with a docking seat 9. The dimensions of the docking seat 9 and the docking groove 8 are compatible.
[0027] The docking seat 9 is inserted inside the docking groove 8. Both the docking seat 9 and the docking groove 8 have a cross-section in the shape of "8". The docking seat 9 is inserted inside the docking groove 8 and is fixedly connected by multiple sets of equally spaced fixing bolts.
[0028] Both the upper positioning seat 4 and the lower positioning seat 7 are L-shaped. A buffer space is provided between the upper positioning seat 4 and the lower positioning seat 7. A buffer seat is fixedly installed on the top of the floating seat 6. Two sets of positioning holes are opened inside the buffer seat.
[0029] Two sets of positioning rods 13 are evenly fixed between the upper positioning seat 4 and the lower positioning seat 7. Each of the two sets of positioning rods 13 is fitted with a buffer spring 5 on its upper side, and the positioning rods 13 are inserted into the positioning holes.
[0030] When the die-cutting blade 10 moves downward, the anti-tilting plate 11 first presses down on the cardboard. At this time, the buffer seat at the top of the floating seat 6 is slidably set on the two sets of positioning rods 13, compressing the buffer spring 5. The die-cutting blade 10 then moves downward, passing through the die-cutting space 12 to perform die-cutting on the cardboard. Simultaneously, the die-cutting blade 10 is positioned and installed at the bottom of the die-cutting table 2 through the figure-eight shaped docking seat 9. When the die-cutting blade 10 moves downward, the anti-tilting plate 11 first presses down on the cardboard, which can fix the cardboard in advance, keeping the cardboard stable before the die-cutting blade 10 contacts it, avoiding displacement of the cardboard due to the impact force of the die-cutting blade 10, laying the foundation for subsequent precise die-cutting, and further improving the accuracy of cutting. The buffer seat at the top of the floating seat 6 is slidably set on the two sets of positioning rods 13, compressing the buffer spring 5. The compression of the buffer spring 5 can effectively alleviate the impact force when the die-cutting blade 10 moves downward, reduce wear on various parts of the equipment, and extend the service life of the equipment. Meanwhile, the buffering effect makes the downward pressure of the die-cutting blade 10 more stable, avoiding unnecessary damage to the cardboard due to excessive instantaneous pressure, and also making the die-cutting process smoother and improving the stability of die-cutting quality. The die-cutting blade 10 passes through the die-cutting space 12 to die-cut the cardboard. The existence of the die-cutting space 12 provides a clear movement path for the die-cutting blade 10, ensuring that the die-cutting blade 10 is not interfered with by other parts during the cutting process, ensuring the smoothness of the cutting action and improving the die-cutting efficiency. In addition, the die-cutting blade 10 is positioned and installed at the bottom of the die-cutting table 2 through the figure-eight shaped docking seat 9. The figure-eight shaped docking seat 9 can provide precise and firm positioning for the die-cutting blade 10, making the installation position of the die-cutting blade 10 more accurate and reducing installation errors. This enhances the stability of the die-cutting blade 10 during operation, preventing it from shaking or shifting during the cutting process, thereby ensuring the consistency of each die-cut, further improving the product qualification rate and aesthetics. At the same time, it facilitates the quick replacement of the worn die-cutting blade 10.
[0031] As a preferred embodiment, multiple sets of holes are equally spaced on the floating seat 6, and the anti-tilting plate 11 at the bottom of the floating seat 6 is rectangular, with the length of the anti-tilting plate 11 being greater than the length of the die-cutting blade 10.
[0032] The anti-warping plate 11 has a die-cutting space 12 inside. The die-cutting space 12 is rectangular and is located directly below the die-cutting blade 10. The die-cutting blade 10 moves downward and passes through the die-cutting space 12 to die-cut the cardboard.
[0033] like Figure 1-4As shown: The die-cutting table 2 is driven by a cylinder on the machine platform to lift and lower, providing stable and powerful power to ensure uniform and controllable pressure during downward movement. This allows the die-cutting blade 10 to achieve precise cutting when cutting the cardboard covering the worktable, ensuring consistent cutting dimensions. When cutting cardboard or paperboard, the anti-warping plate 11 floating at the bottom of the die-cutting table 2 plays a crucial role. The anti-warping plate 11 can tightly cover the surface of the cardboard, effectively pressing down on the cutting position when the cardboard is being cut. This solves the problem of "wrinkles" or "curling edges" that easily occur during the cutting process, ensuring that the cardboard always maintains a flat surface during cutting. This not only improves the aesthetics of the product but also reduces the scrap rate caused by poor shape, improving the overall quality and pass rate of the product. The entire cutting process is smoother and more efficient, eliminating the need for additional steps to deal with cardboard warping, saving production time, improving production efficiency, and bringing better production benefits to the enterprise.
Claims
1. A die-cutting device for processing chemical paperboard, comprising a die-cutting table (2), characterized in that: The die-cutting table (2) has a through hole (3) inside. A docking seat (9) is installed at the bottom of the die-cutting table (2). A die-cutting blade (10) is fixedly installed at the bottom of the docking seat (9). An anti-warping plate (11) is installed below the die-cutting blade (10). A floating seat (6) is fixedly installed on the upper surface of the anti-warping plate (11). The floating seat (6) is located on the back of the die-cutting table (2). An upper positioning seat (4) is screwed onto the upper back of the die-cutting table (2). A lower positioning seat (7) is screwed onto the lower back of the die-cutting table (2).
2. The die-cutting device for processing chemical paperboard according to claim 1, characterized in that: The top of the die-cutting table (2) is fixedly provided with a fixing seat (1), which is "L" shaped. The fixing seat (1) is fixed to the output end of the drive cylinder of the die-cutting device. Two sets of slots are provided on the fixing seat (1).
3. The die-cutting device for processing chemical paperboard according to claim 2, characterized in that: The bottom of the die-cutting table (2) is provided with a docking groove (8), and the top of the die-cutting blade (10) is fixedly provided with a docking seat (9). The dimensions of the docking seat (9) and the docking groove (8) are compatible.
4. The die-cutting device for processing chemical paperboard according to claim 3, characterized in that: The docking seat (9) is inserted inside the docking groove (8). Both the docking seat (9) and the docking groove (8) have a cross-section in the shape of "8". The docking seat (9) is inserted inside the docking groove (8) and is fixedly connected by multiple sets of equally spaced fixing bolts.
5. The die-cutting device for processing chemical paperboard according to claim 1, characterized in that: The upper positioning seat (4) and the lower positioning seat (7) are both L-shaped. A buffer space is provided between the upper positioning seat (4) and the lower positioning seat (7). A buffer seat is fixedly provided on the top of the floating seat (6). Two sets of positioning holes are opened inside the buffer seat.
6. The die-cutting device for processing chemical paperboard according to claim 5, characterized in that: Two sets of positioning rods (13) are evenly fixed between the upper positioning seat (4) and the lower positioning seat (7). Each of the two sets of positioning rods (13) is fitted with a buffer spring (5), and the positioning rods (13) are inserted into the positioning holes.
7. The die-cutting device for processing chemical paperboard according to claim 6, characterized in that: The floating seat (6) has multiple sets of holes at equal intervals. The anti-tilting plate (11) at the bottom of the floating seat (6) is rectangular and the length of the anti-tilting plate (11) is greater than the length of the die-cutting blade (10).
8. The die-cutting device for processing chemical paperboard according to claim 7, characterized in that: The anti-warping plate (11) has a die-cutting space (12) inside. The die-cutting space (12) is rectangular and is located directly below the die-cutting blade (10). The die-cutting blade (10) moves downward through the die-cutting space (12) to die-cut the cardboard.