Paper feeding gripper bar device of die-cutting machine

Abstract

The utility model discloses a paper feeding tooth row device of a die-cutting machine, which relates to the technical field of paper feeding tooth rows and comprises a tooth row inner shaft, a tooth row outer shaft is sleeved on the outer side of the tooth row inner shaft, the tooth row outer shaft is connected with the tooth row inner shaft in a sliding mode, and a plurality of paper gripping teeth for gripping paper are arranged on the tooth row outer shaft. The tooth row outer shaft comprises a first outer shaft and a second outer shaft, and a male end and a female end which are arranged side by side are arranged on the corresponding end surfaces of the first outer shaft and the second outer shaft; according to the gripper bar device, the first outer shaft or the second outer shaft corresponding to the damaged part is disassembled, then the tail parts of the new first outer shaft and the second outer shaft are spliced together through the male end and the female end, the whole gripper bar device does not need to be replaced, the maintenance cost is reduced, and the economical efficiency of equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of paper feeding gripper technology, specifically a paper feeding gripper device for a die-cutting machine. Background Technology

[0002] In the existing technology of die-cutting machine paper feeding gripper devices, the gripper outer shaft is a key component of the device. During long-term operation, the grippers on it are prone to wear and damage due to frequent contact with paper and the application of significant friction and tension. Damage to the grippers directly affects the paper feeding accuracy and die-cutting quality, leading to unstable paper feeding, die-cutting position deviations, and other defects, ultimately reducing production efficiency and product quality.

[0003] However, existing die-cutting machine paper feeding gripper devices still have some drawbacks in actual use: during the actual use of the die-cutting machine paper feeding gripper device, the gripping teeth on the outer shaft of the gripper inevitably need to be replaced due to wear, damage, and other reasons. Traditional replacement methods often require replacing the entire gripper device, which not only increases maintenance costs but also wastes resources.

[0004] To address this issue, we designed a paper feed gripper device for a die-cutting machine. Utility Model Content

[0005] The purpose of this invention is to provide a paper feeding gripper device for a die-cutting machine to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a paper feeding gripper device for a die-cutting machine, including an inner gripper shaft, an outer gripper shaft sleeved on the outside of the inner gripper shaft, the outer gripper shaft being slidably connected to the inner gripper shaft, and a plurality of gripping teeth for gripping paper being provided on the outer gripper shaft. The outer gripper shaft includes a first outer shaft and a second outer shaft, and male and female ends arranged side by side are provided on the corresponding end faces of the first and second outer shafts.

[0007] Furthermore, the male end is a column protruding from the end face of the first outer shaft, and the female end is a sleeve protruding from the end face of the first outer shaft.

[0008] Furthermore, a positioning groove is provided on the end face of the first outer shaft around the periphery of the male end, and the inner diameter of the positioning groove matches the outer diameter of the female end.

[0009] Furthermore, a snap-fit ​​strip is provided on one side of the male end, and a snap-fit ​​groove is provided on the side wall of the female end, with the snap-fit ​​strip matching the snap-fit ​​groove.

[0010] Furthermore, the male end has a circular cross-section, and the female end has an annular cross-section.

[0011] Furthermore, a drive assembly is provided on the outer side of the inner shaft of the tooth row, and the drive assembly is connected to the outer shaft of the tooth row and is used to drive the outer shaft of the tooth row to slide.

[0012] Furthermore, the drive assembly includes a drive motor for providing power, and a coupling rod with one end connected to the drive shaft of the drive motor and the other end connected to the outer shaft of the tooth rack.

[0013] Furthermore, the outer shaft of the tooth rack is mounted on the inner shaft of the tooth rack via a linear bearing.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, by disassembling the first or second outer shaft corresponding to the damaged part, and then splicing the tail of the new first outer shaft and the second outer shaft together through the male and female ends, it is possible to reduce maintenance costs and improve the economy of the equipment without replacing the entire gear rack device.

[0016] 2. In this utility model, the connection method of the male end and the female end makes the first outer shaft and the second outer shaft modular. The first outer shaft and the second outer shaft of different specifications and models can be combined through the male end and the female end to adapt to the needs of different die-cutting machines. This universal design enables the paper feeding gripper device to be widely used in a variety of die-cutting machines, improving the applicability and market competitiveness of the product. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external three-dimensional structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the external three-dimensional structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the external three-dimensional structure of the present invention;

[0020] Figure 4 This utility model Figure 1 A magnified view of a portion of point A in the middle.

[0021] In the diagram: 1. Inner shaft of the gripper bar; 2. Outer shaft of the gripper bar; 3. Gripping gripper; 4. First outer shaft; 5. Second outer shaft; 6. Male end; 7. Female end; 8. Positioning groove; 9. Snap-fit ​​strip; 10. Snap-fit ​​slot; 11. Drive motor; 12. Coupling rod. 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 , Figure 2 and Figure 4 This utility model provides a technical solution: a paper feed gripper device for a die-cutting machine, including an inner gripper shaft 1, an outer gripper shaft 2 sleeved on the outer side of the inner gripper shaft 1, the outer gripper shaft 2 being slidably connected to the inner gripper shaft 1, and a plurality of gripping teeth 3 for gripping paper being provided on the outer gripper shaft 2. The outer gripper shaft 2 includes a first outer shaft 4 and a second outer shaft 5, and a male end 6 and a female end 7 arranged side by side are provided on the corresponding end faces of the first outer shaft 4 and the second outer shaft 5, the male end 6 being protruding from the end face of the first outer shaft 4. The column has a female end 7 that protrudes from the end face of the first outer shaft 4, a male end 6 with a circular cross-section, and a female end 7 with an annular cross-section. A drive assembly is provided on the outside of the inner shaft 1 of the tooth rack. The drive assembly is connected to the outer shaft 2 of the tooth rack and is used to drive the outer shaft 2 of the tooth rack to slide. The drive assembly includes a drive motor 11 for providing power and a coupling rod 12 with one end connected to the drive shaft of the drive motor 11 and the other end connected to the outer shaft 2 of the tooth rack. The outer shaft 2 of the tooth rack is mounted on the inner shaft 1 of the tooth rack through a linear bearing.

[0024] In practice, a male end 6 and a female end 7 are formed on the end face of the first outer shaft 4. The outer dimensions of the male end 6 match the inner diameter of the female end 7. When the gripper 3 on the upper part of the gripper shaft 2 is damaged and needs to be replaced, the operator can disassemble it as needed and splice the new first outer shaft 4 and the tail of the second outer shaft 5 together through the male end 6 and the female end 7, thus eliminating the need to replace the entire gripper assembly. During splicing, the tails of the first outer shaft 4 and the second outer shaft 5 are aligned so that the male end 6 is inserted into the corresponding female end 7 to complete the connection. The connection and disassembly are achieved by plugging and unplugging, which is more convenient for users.

[0025] See Figure 2 The end face of the first outer shaft 4 is provided with a positioning groove 8 around the male end 6. The inner diameter of the positioning groove 8 matches the outer diameter of the female end 7. After the first outer shaft 4 and the second outer shaft 5 are connected together, the female end 7 of the first outer shaft 4 will also be inserted into the positioning groove 8 of the second outer shaft 5. On the one hand, the male end 6 and the female end 7 cooperate to form a connecting part, and on the other hand, the female end 7 and the positioning groove 8 cooperate to form another connecting part, so as to more effectively improve the connection reliability between the first outer shaft 4 and the second outer shaft 5.

[0026] See Figure 3A snap-fit ​​strip 9 is provided on one side of the male end 6, and a snap-fit ​​groove 10 is provided on the side wall of the female end 7. The snap-fit ​​strip 9 matches the snap-fit ​​groove 10. When the first outer shaft 4 and the second outer shaft 5 are assembled together, the column is inserted into the sleeve. At the same time, the snap-fit ​​strip 9 will be inserted into the snap-fit ​​groove 10 to further increase the connection surface area between the male end 6 and the female end 7, so as to improve the connection reliability.

[0027] Working principle:

[0028] A male end 6 and a female end 7 are formed on the end face of the first outer shaft 4. The outer dimensions of the male end 6 match the inner diameter of the female end 7. When the gripper 3 on the upper part of the gripper shaft 2 is damaged and needs to be replaced, the operator can disassemble it as needed and splice the new first outer shaft 4 with the tail of the second outer shaft 5 through the male end 6 and the female end 7, thus eliminating the need to replace the entire gripper assembly. Specifically, during splicing, the tails of the first outer shaft 4 and the second outer shaft 5 are aligned so that the male end 6 is inserted into the corresponding female end 7 to complete the connection. The connection and disassembly are achieved by plugging and unplugging, which is more convenient for users.

[0029] When the tail ends of the first outer shaft 4 and the second outer shaft 5 are connected together, the male end 6 of the first outer shaft 4 is inserted into the female end 7 of the second outer shaft 5, and the male end 6 of the second outer shaft 5 is inserted into the female end 7 of the first outer shaft 4.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A die-cutting machine paper feeding gripper device, comprising a gripper inner shaft (1), characterized in that, The outer shaft (2) of the tooth row is sleeved on the outside of the inner shaft (1). The outer shaft (2) of the tooth row is slidably connected to the inner shaft (1). The outer shaft (2) of the tooth row is provided with a plurality of paper-biting teeth (3) for biting paper. The outer shaft (2) of the tooth row includes a first outer shaft (4) and a second outer shaft (5). The corresponding end faces of the first outer shaft (4) and the second outer shaft (5) are provided with a male end (6) and a female end (7) arranged side by side.

2. The die-cutting machine paper feeding gripper device as described in claim 1, characterized in that: The male end (6) is a column protruding from the end face of the first outer shaft (4), and the female end (7) is a sleeve protruding from the end face of the first outer shaft (4).

3. The die-cutting machine paper feeding gripper device as described in claim 2, characterized in that: The end face of the first outer shaft (4) is provided with a positioning groove (8) around the male end (6), and the inner diameter of the positioning groove (8) matches the outer diameter of the female end (7).

4. The die-cutting machine paper feeding gripper device as described in claim 3, characterized in that: A snap-fit ​​strip (9) is provided on one side of the male end (6), and a snap-fit ​​groove (10) is provided on the side wall of the female end (7), and the snap-fit ​​strip (9) matches the snap-fit ​​groove (10).

5. The die-cutting machine paper feeding gripper device as described in claim 4, characterized in that: The male end (6) has a circular cross-section, and the female end (7) has a ring cross-section.

6. The die-cutting machine paper feeding gripper device as described in claim 5, characterized in that: A drive assembly is provided on the outer side of the inner shaft (1) of the tooth row. The drive assembly is connected to the outer shaft (2) of the tooth row and is used to drive the outer shaft (2) of the tooth row to slide.

7. The die-cutting machine paper feeding gripper device as described in claim 6, characterized in that: The drive assembly includes a drive motor (11) for providing power, and a coupling (12) with one end connected to the drive shaft of the drive motor (11) and the other end connected to the outer shaft (2) of the tooth rack.

8. The die-cutting machine paper feeding gripper device as described in claim 7, characterized in that: The outer shaft (2) of the tooth row is mounted on the inner shaft (1) of the tooth row via a linear bearing.

Images