Die cutting machine for printing machine

By designing a rotating plate on the die-cutting machine to drive the sliding rod, the sliding block and positioning rod can be extended and retracted, solving the problem of inconvenient cutter replacement and improving the operating efficiency of the die-cutting machine.

CN223989578UActive Publication Date: 2026-03-13SHANGHAI QINGFENG DIGITAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Changing the cutter on existing die-cutting machines is cumbersome, inconvenient to install and disassemble, increases the workload of workers, and reduces work efficiency.

Method used

A die-cutting machine for printing presses was designed. The rotating plate drives the slide bar to move, which causes the slider to move and retract under the action of the slide bar, the inclined groove, and the slide groove, thereby positioning the mounting ring and facilitating the installation and disassembly of the cutter.

Benefits of technology

It improves the convenience of cutting blade replacement and maintenance, reduces working time and labor intensity, and increases work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of die-cutting machines, and discloses a die-cutting machine for a printing machine, the die-cutting machine comprises a machine head, the bottom end of the machine head is fixedly connected with a fixing ring, the inner wall of the fixing ring is fixedly connected with a shell, the outer circumferential surface of the shell is slidably sleeved with a mounting ring, and the bottom surface of the mounting ring is fixedly connected with a cutter. A fixing plate is fixedly connected to the inner wall of the shell, four sliding grooves are formed in the fixing plate, and the fixing plate is slidably connected with sliding blocks through the sliding grooves. According to the die-cutting machine for the printing machine, a sliding rod is driven to move when a rotating plate rotates, a sliding block is promoted to drive a positioning rod to retract and release under the action of the sliding rod, an inclined groove and a sliding groove, then positioning of a mounting ring is completed, and the effects that a cutter is conveniently mounted and dismounted, convenience is provided for replacement and maintenance of the cutter, and the working efficiency is improved are achieved; the die-cutting machine solves the problems that according to an existing die-cutting machine, a cutter is troublesome to replace, and time and labor are wasted.
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Description

Technical Field

[0001] This application relates to the field of die-cutting machine technology, specifically a die-cutting machine for printing presses. Background Technology

[0002] Die-cutting machines, also known as die-cutting machines, cutting machines, or CNC punching machines, are mainly used for die-cutting (full cut, half cut), creasing, hot stamping, laminating, and automatic waste removal of various non-metallic materials, self-adhesive labels, EVA, double-sided tape, electronic products, and mobile phone pads. They utilize steel blades, metal molds, and steel wire (or templates carved from steel plates) to apply pressure through an imprinting plate, cutting printed materials or cardboard into specific shapes. They are essential equipment for post-printing packaging processing.

[0003] Die-cutting machines require blade replacement as needed during operation. However, replacing blades on existing die-cutting machines is cumbersome, making it difficult to install and disassemble the blades, which increases the workload of workers and reduces work efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a die-cutting machine for printing presses, which has the advantages of convenient installation and disassembly of the die-cutting machine's cutter, facilitating cutter replacement and maintenance. This solves the problem that existing die-cutting machines require cutter replacement as needed during use, and that cutting cutter replacement is cumbersome, inconvenient to install and disassemble, increases the workload of workers, and reduces work efficiency.

[0005] To achieve the above objectives, this application provides the following technical solution: a die-cutting machine for printing presses, comprising a die head, a fixing ring fixedly connected to the bottom end of the die head, a housing fixedly connected to the inner wall of the fixing ring, an mounting ring slidably sleeved on the outer circumferential surface of the housing, a cutter fixedly connected to the bottom surface of the mounting ring, a fixing plate fixedly connected to the inner wall of the housing, four sliding grooves provided inside the fixing plate, a slider slidably connected to the fixing plate through the sliding grooves, a positioning rod fixedly connected to the outer surface of the slider, and the positioning rod slidably inserted into the mounting ring through a slot opened inside the mounting ring.

[0006] The above solution addresses the issue that replacing the cutter on existing die-cutting machines is cumbersome, making it difficult to install and disassemble the cutter, increasing the workload for workers, and reducing work efficiency. By rotating the plate, the sliding rod moves, causing the slider to move under the action of the sliding rod, the inclined groove, and the sliding channel, thereby positioning the mounting ring and facilitating the installation and disassembly of the cutter.

[0007] Furthermore, four auxiliary blocks are fixedly connected to the inner wall of the mounting ring, and four auxiliary grooves are opened inside the outer shell. The outer surface of the auxiliary blocks is slidably connected to the outer shell through the auxiliary grooves.

[0008] The above solution utilizes auxiliary blocks and auxiliary slots to assist in the installation of the ring, providing convenience for workers.

[0009] Furthermore, a rotating plate is rotatably connected to the inner wall of the outer shell, and four inclined grooves are provided inside the rotating plate. A sliding rod is slidably connected to the rotating plate through the inclined grooves, and the bottom surface of the sliding rod is fixedly connected to the upper surface of the slider.

[0010] The above scheme uses a rotating plate to drive a sliding rod to move, which in turn causes the slider to move and retract under the action of the sliding rod, the inclined groove, and the sliding channel, thereby completing the positioning of the mounting ring.

[0011] Furthermore, a limiting ring is fixedly sleeved on the outer circumferential surface of the rotating plate, and the outer circumferential surface of the limiting ring is rotatably connected to the interior of the outer shell.

[0012] The above method restricts the rotation plate, preventing it from sliding longitudinally and increasing the stability of its movement.

[0013] Furthermore, a limiting ring two is fixedly sleeved on the outer circumferential surface of the slide rod, and a limiting groove is opened inside the rotating plate. The outer circumferential surface of the limiting ring two is slidably connected to the rotating plate through the limiting groove.

[0014] The above method restricts the sliding rod, preventing it from sliding off the inclined groove and increasing the stability of the sliding rod and slider movement.

[0015] Furthermore, a control rod is fixedly connected to the upper surface of the rotating plate, a handwheel is fixedly sleeved on the outer circumferential surface of the control rod, and a fixed seat is fixedly connected to the outer circumferential surface of the handwheel.

[0016] The above solution enables staff to operate the rotating plate using handwheels and control levers, providing convenience for staff.

[0017] Furthermore, a threaded rod is rotatably inserted into the interior of the fixed base, and a threaded tube is threadedly connected to the outer circumferential surface of the threaded rod. The outer circumferential surface of the threaded tube is slidably inserted into the interior of the fixed ring.

[0018] The above solution restricts the handwheel by using a threaded tube, preventing the handwheel from rotating and thus preventing the rotating plate from turning back during operation, thereby increasing the stability of the cutting process.

[0019] Furthermore, a limiting ring three is fixedly sleeved on the outer circumferential surface of the threaded rod, and the outer circumferential surface of the limiting ring three is rotatably connected to the interior of the fixed seat. Two limiting plates are fixedly connected to the outer circumferential surface of the threaded tube, and the outer surface of each limiting plate is slidably connected to the fixed seat through a slot opened inside the fixed seat.

[0020] The above scheme increases the stability of the threaded rod's movement by using a limiting ring, and prevents the threaded tube from rotating along with the threaded rod by using a limiting plate, thus ensuring that the threaded tube always maintains lateral movement.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This printing press uses a die-cutting machine. When the rotating plate rotates, it drives the sliding rod to move, causing the slider to move and retract under the action of the sliding rod, the inclined groove, and the sliding channel. This completes the positioning of the mounting ring, which facilitates the installation and disassembly of the cutter, provides convenience for cutter replacement and maintenance, and improves work efficiency. It solves the problem that the existing die-cutting machine is troublesome, time-consuming and labor-intensive when replacing the cutter. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0024] Figure 2 This is a diagram of the outer shell structure of this application;

[0025] Figure 3 This is a structural diagram of the rotating plate in this application;

[0026] Figure 4 This is a structural diagram of the fixing plate in this application;

[0027] Figure 5 This is a structural diagram of the slide bar in this application;

[0028] Figure 6 This is a structural diagram of the fixing base in this application.

[0029] In the picture:

[0030] 1. Machine head; 2. Fixing ring; 3. Outer shell; 4. Mounting ring; 5. Auxiliary block; 6. Auxiliary groove; 7. Fixing plate; 8. Slide groove; 9. Slider; 10. Positioning rod; 11. Rotating plate; 12. Limiting ring one; 13. Inclined groove; 14. Slide rod; 15. Limiting ring two; 16. Limiting groove; 17. Control rod; 18. Handwheel; 19. Fixing seat; 20. Threaded rod; 21. Limiting ring three; 22. Threaded tube; 23. Limiting plate; 24. Cutting blade. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 1 , Figure 2 and Figure 5 This embodiment of a die-cutting machine for a printing press includes a die head 1. A fixing ring 2 is fixedly connected to the bottom end of the die head 1. A housing 3 is fixedly connected to the inner wall of the fixing ring 2. An mounting ring 4 is slidably sleeved on the outer circumferential surface of the housing 3. A cutter 24 is fixedly connected to the bottom surface of the mounting ring 4. A fixing plate 7 is fixedly connected to the inner wall of the housing 3. Four sliding grooves 8 are provided inside the fixing plate 7. A slider 9 is slidably connected to the fixing plate 7 through the sliding grooves 8. A positioning rod 10 is fixedly connected to the outer surface of the slider 9. The positioning rod 10 is slidably inserted into the mounting ring 4 through a slot opened inside the mounting ring 4.

[0033] Please see Figure 2 The inner wall of the mounting ring 4 is fixedly connected with four auxiliary blocks 5, and the inside of the outer shell 3 is provided with four auxiliary grooves 6. The outer surface of the auxiliary blocks 5 is slidably connected to the outer shell 3 through the auxiliary grooves 6. The mounting ring 4 is installed with the assistance of the auxiliary blocks 5 and the auxiliary grooves 6, which provides convenience for the staff.

[0034] Please see Figure 3 and Figure 5 A rotating plate 11 is rotatably connected to the inner wall of the outer shell 3. The rotating plate 11 has four inclined grooves 13 inside. A sliding rod 14 is slidably connected to the rotating plate 11 through the inclined grooves 13. The bottom surface of the sliding rod 14 is fixedly connected to the upper surface of the slider 9. When the rotating plate 11 rotates, it drives the sliding rod 14 to move, causing the slider 9 to drive the positioning rod 10 to move in and out under the action of the sliding rod 14, the inclined grooves 13, and the sliding groove 8, thereby completing the positioning of the mounting ring 4.

[0035] Please see Figure 1 , Figure 2 and Figure 3 A limiting ring 12 is fixedly sleeved on the outer circumferential surface of the rotating plate 11. The outer circumferential surface of the limiting ring 12 is rotatably connected to the inside of the outer shell 3 to restrict the rotating plate 11, prevent the rotating plate 11 from sliding longitudinally, and increase the stability of the movement of the rotating plate 11.

[0036] Please see Figure 3 and Figure 4 A limiting ring 15 is fixedly sleeved on the outer circumferential surface of the slide rod 14. A limiting groove 16 is opened inside the rotating plate 11. The outer circumferential surface of the limiting ring 15 is slidably connected to the rotating plate 11 through the limiting groove 16 to restrict the slide rod 14, prevent the slide rod 14 from sliding off the inclined groove 13, and increase the stability of the movement of the slide rod 14 and the slider 9.

[0037] Please see Figure 5A control lever 17 is fixedly connected to the upper surface of the rotating plate 11. A handwheel 18 is fixedly sleeved on the outer circumferential surface of the control lever 17. A fixed seat 19 is fixedly connected to the outer circumferential surface of the handwheel 18, enabling the operator to control the rotating plate 11 through the handwheel 18 and the control lever 17, thus providing convenience for the operator.

[0038] Please see Figure 6 The fixed base 19 has a threaded rod 20 rotatably inserted inside. The outer circumferential surface of the threaded rod 20 is threadedly connected to a threaded tube 22. The outer circumferential surface of the threaded tube 22 is slidably inserted into the inside of the fixed ring 2. The threaded tube 22 restricts the handwheel 18, preventing the handwheel 18 from rotating, thereby preventing the rotating plate 11 from rotating during operation and increasing the stability of the cutter 24 during operation.

[0039] Please see Figure 6 The outer circumferential surface of the threaded rod 20 is fixedly fitted with a limiting ring 21. The outer circumferential surface of the limiting ring 21 is rotatably connected to the inside of the fixed seat 19. The outer circumferential surface of the threaded tube 22 is fixedly connected with two limiting plates 23. The outer surface of each limiting plate 23 is slidably connected to the fixed seat 19 through a slot opened inside the fixed seat 19. The limiting ring 21 increases the stability of the movement of the threaded rod 20, and the limiting plates 23 prevent the threaded tube 22 from rotating with the threaded rod 20, so that the threaded tube 22 always maintains lateral movement.

[0040] In this embodiment, a die-cutting machine for a printing press uses a rotating plate 11 to drive a sliding rod 14 to move when the plate rotates. This causes the slider 9 to move and retract under the action of the sliding rod 14, the inclined groove 13, and the sliding groove 8, thereby positioning the mounting ring 4. This facilitates the installation and disassembly of the cutter 24, making it easier to replace and maintain the cutter 24 and improving work efficiency. It solves the problem that replacing the cutter 24 in existing die-cutting machines is troublesome, time-consuming, and labor-intensive.

[0041] It should be noted that the positions of the slide groove 8 and the inclined groove 13 are corresponding, and the angle between the four slide grooves 8 and the four inclined grooves 13 is 90 degrees.

[0042] The working principle of the above embodiment is as follows: When it is necessary to replace the cutter 24 of the die-cutting machine, firstly rotate the threaded rod 20 to move the threaded tube 22 out of the fixed ring 2, thereby removing the positioning restriction of the threaded tube 22 on the handwheel 18. Then, rotate the handwheel 18 to drive the rotating plate 11 to rotate through the control rod 17. The rotating plate 11 drives the sliding rod 14 to move. The sliding rod 14 drives the slider 9 to move inward under the action of the sliding rod 14, the inclined groove 13, and the sliding groove 8. Then, the slider 9 drives the positioning rod 10 to move inward. The positioning rod 10 moves out of the mounting ring 4. At this time, the mounting ring 4 and the cutter 24 are removed together. After replacing the new cutter 24, the handwheel 18 is rotated in the opposite direction to position the new mounting ring 4.

[0043] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A die cutter for a printing press comprising a head (1), characterized in that: The bottom end of the machine head (1) is fixedly connected with a fixed ring (2), the inner wall of the fixed ring (2) is fixedly connected with an outer shell (3), the outer circumferential surface of the outer shell (3) is slidably sleeved with a mounting ring (4), the bottom surface of the mounting ring (4) is fixedly connected with a cutter (24), the inner wall of the outer shell (3) is fixedly connected with a fixed plate (7), four sliding grooves (8) are formed in the fixed plate (7), the fixed plate (7) is slidably connected with a sliding block (9) through the sliding grooves (8), the outer surface of the sliding block (9) is fixedly connected with a positioning rod (10), and the positioning rod (10) is slidably inserted into the mounting ring (4) through the groove formed in the mounting ring (4).

2. The die cutter for a printing press according to claim 1, characterized in that: The inner wall of the mounting ring (4) is fixedly connected with four auxiliary blocks (5), four auxiliary grooves (6) are formed in the inner wall of the outer shell (3), and the outer surface of the auxiliary block (5) is slidably connected with the outer shell (3) through the auxiliary groove (6).

3. The die cutter for a printing press according to claim 1, characterized in that: The inner wall of the outer shell (3) is rotatably connected with a rotating plate (11), four inclined grooves (13) are formed in the inner wall of the rotating plate (11), and the rotating plate (11) is slidably connected with a sliding rod (14) through the inclined grooves (13).

4. The die cutter for a printing press according to claim 3, characterized in that: The outer circumferential surface of the rotating plate (11) is fixedly sleeved with a limiting ring one (12), and the outer circumferential surface of the limiting ring one (12) is rotatably connected with the inner wall of the outer shell (3).

5. The die cutter for a printing press according to claim 3, characterized in that: The outer circumferential surface of the sliding rod (14) is fixedly sleeved with a limiting ring two (15), the inner wall of the rotating plate (11) is formed with a limiting groove (16), and the outer circumferential surface of the limiting ring two (15) is slidably connected with the rotating plate (11) through the limiting groove (16).

6. The die cutter for a printing press according to claim 3, characterized in that: The upper surface of the rotating plate (11) is fixedly connected with a control rod (17), the outer circumferential surface of the control rod (17) is fixedly sleeved with a hand wheel (18), and the outer circumferential surface of the hand wheel (18) is fixedly connected with a fixed seat (19).

7. A die cutter for a printing press according to claim 6, characterized in that: The inner wall of the fixed seat (19) is rotatably inserted with a threaded rod (20), the outer circumferential surface of the threaded rod (20) is threadedly connected with a threaded pipe (22), and the outer circumferential surface of the threaded pipe (22) is slidably inserted into the inner wall of the fixed ring (2).

8. A die cutter for a printing press according to claim 7, characterized in that: The outer circumferential surface of the threaded rod (20) is fixedly sleeved with a limiting ring three (21), the outer circumferential surface of the limiting ring three (21) is rotatably connected with the inner wall of the fixed seat (19), the outer circumferential surface of the threaded pipe (22) is fixedly connected with two limiting plates (23), and the outer surface of each limiting plate (23) is slidably connected with the inner wall of the fixed seat (19) through the groove formed in the fixed seat (19).