A cutting device for a gravure printing machine

Abstract

The utility model provides a kind of cutting device for gravure printing machine, comprising: be set between two opposite wallboard (1) and one end is connected with the knife rest unit of wallboard (1);Two ends are connected with the first knife rest support shaft (13) of the knife rest unit, and the roller structure and cutting tool structure can rotate around the first knife rest support shaft (13).By setting roller structure on cutting device, the tension of material film can be adjusted, cutting tool is convenient for cutting material film, avoid the problem that cutting tool keeps cutting due to insufficient material film tension.

Description

Technical Field

[0001] This utility model belongs to the field of gravure printing technology, and specifically relates to a cutting device for a gravure printing machine. Background Technology

[0002] After the gravure printing machine has completed the required winding process, the film needs to be transferred to an empty drum for further winding. This requires cutting the film. Current technology uses a swing arm to drive the cutter to cut the film at a designated position. However, sometimes the film tension is too loose, causing the cutter to cut the material incompletely. Utility Model Content

[0003] The present invention aims to provide a cutting device for a gravure printing machine, comprising: a knife holder unit disposed between two opposing wall plates (1) and connected at one end to the wall plate (1); a first knife holder support shaft (13) connected at both ends to the knife holder unit; and a roller pressing structure and a cutting structure capable of rotating around the first knife holder support shaft (13).

[0004] Preferably, it also includes a lifting unit that can drive the knife holder unit to move up and down along the height direction of the wall panel (1);

[0005] The lifting unit includes a drive structure and a guide structure. The drive structure includes a first cylinder (6), a fixed seat (7) fixed on the wall panel (1), one end of the first cylinder (6) is connected to the fixed seat (7), a connector (5) is connected to the other end of the first cylinder (6), a connecting arm (4) is connected to the connector (5), and a connecting plate (8) is fixedly connected to the connecting arm (4).

[0006] The guide structure includes: a guide rail (2) disposed on the inner side of the wall panel (1) in the height direction, and a slider (3) cooperating with the guide rail (2), the slider (3) being connected to the connecting arm (4).

[0007] Preferably, the tool holder unit includes: a mounting end plate (12), one end of which is connected to the first tool holder support shaft (13), and two oppositely arranged protrusions (9) fixedly disposed at the other end of the mounting end plate, the protrusions (9) being connected to the connecting plate (8) via a bolt shaft (11).

[0008] Preferably, it further includes: a swing arm (14) rotatably connected to the first tool holder support shaft (13), a swing arm shaft (15) disposed at one end of the swing arm (14), and a first roller (16) disposed on the swing arm shaft (15).

[0009] A cutting arm (18) rotatably connected to the first tool holder support shaft (13), a cutting tool mounting member (19) disposed at the end of the cutting arm (18), and a cutting tool (20) clamped by the cutting tool mounting member (19).

[0010] Preferably, it further includes: a second tool post support shaft (17) connected to the tool post unit, and a second roller (21) disposed on the second tool post support shaft (17).

[0011] A tool holder cylinder mounting component (22) is provided on the tool holder cylinder mounting component (22) and the second tool holder support shaft (17) and the first tool holder support shaft (13) respectively to pull the cutting arm (18) and the swing arm component (14); the second cylinder (24) and the third cylinder (26) are respectively connected to the cutting arm (18) and the swing arm component (14) through the first cylinder support shaft (23) and the second cylinder support shaft (25).

[0012] The cutting device for gravure printing machines of this invention has the following advantages:

[0013] 1. By setting a roller pressing structure on the cutting device, the tension of the film can be adjusted, which facilitates the cutting of the film by the cutter and avoids the problem of the cutter not cutting continuously due to insufficient film tension.

[0014] 2. The addition of a lifting unit allows the cutting device to adjust its space when not in use, facilitating the operation of other structures.

[0015] 3. The tool holder unit is more tightly integrated with the second and third cylinders, facilitating the movement of the second roller and the cutter. Attached Figure Description

[0016] Figure 1 A three-dimensional schematic diagram of the cutting device for a gravure printing machine provided in Embodiment 1 of this utility model.

[0017] Figure 2 In Embodiment 1 of this utility model Figure 1 A magnified view of a portion of the image.

[0018] Figure 3 A cross-sectional view of the cutting device for a gravure printing machine provided in Embodiment 1 of this utility model.

[0019] in,

[0020] 1. Wall panel; 2. Guide rail; 3. Slider; 4. Connecting arm; 5. Connector; 6. First cylinder; 7. Fixed seat; 8. Connecting plate; 9. Protruding plate; 11. Bolt shaft; 12. Mounting end plate; 13. First tool holder support shaft; 14. Swing arm component; 15. Swing arm shaft; 16. First roller; 17. Second tool holder support shaft; 18. Cutting arm; 19. Cutting tool mounting component; 20. Cutting tool; 21. Second roller; 22. Tool holder cylinder mounting component; 23. First cylinder support shaft; 24. Second cylinder; 25. Second cylinder support shaft; 26. Third cylinder. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to specific embodiments.

[0022] Example 1:

[0023] like Figure 1-3 As shown, this embodiment provides a cutting device for a gravure printing machine, including: a knife holder unit disposed between two opposing wall plates 1 and connected to the wall plate 1 at one end; a first knife holder support shaft 13 connected to the knife holder unit at both ends; and a roller pressing structure and a cutting structure that can rotate around the first knife holder support shaft 13.

[0024] By setting a roller pressing structure on the cutting device, the tension of the film can be adjusted, making it easier for the cutter to cut the film and avoiding insufficient film tension that would cause the cutter to cut continuously.

[0025] Preferably, it also includes a lifting unit capable of driving the knife holder unit to move up and down along the height direction of the wall panel 1;

[0026] The lifting unit includes a drive structure and a guide structure. The drive structure includes a first cylinder 6, a fixed seat 7 fixed on the wall panel 1, one end of the first cylinder 6 connected to the fixed seat 7, a connector 5 connected to the other end of the first cylinder 6, a connecting arm 4 connected to the connector 5, and a connecting plate 8 fixedly connected to the connecting arm 4.

[0027] The guide structure includes: a guide rail 2 disposed on the inner side of the wall panel 1 in the height direction, and a slider 3 cooperating with the guide rail 2, wherein the slider 3 is connected to the connecting arm 4.

[0028] In this way, when the first cylinder 6 extends or retracts, it can pull the connecting arm 4 to move up and down along the guide rail 2, thereby driving the connecting plate 8 to move up and down. When the cutting device is not in use, the space can be adjusted to facilitate the operation of other structures.

[0029] Preferably, the tool holder unit includes: a mounting end plate 12, one end of which is connected to the first tool holder support shaft 13, and two oppositely arranged protrusions 9 are fixedly disposed at the other end of the mounting end plate, the protrusions 9 being connected to the connecting plate 8 via bolt shafts 11.

[0030] In this way, the first tool holder support shaft 13 can move with the movement of the connecting plate 8, thereby realizing the lifting and lowering in the height direction of the wall panel.

[0031] Preferably, it further includes: a swing arm 14 rotatably connected to the first tool holder support shaft 13, a swing arm shaft 15 disposed at one end of the swing arm 14, and a first roller 16 disposed on the swing arm shaft 15;

[0032] A cutting arm 18 rotatably connected to the first blade holder support shaft 13, a cutting blade mounting member 19 disposed at the end of the cutting arm 18, and a cutting blade 20 held by the cutting blade mounting member 19.

[0033] In this way, both the first roller 16 and the cutter 20 can be driven to rotate around the first cutter holder support shaft 13 to achieve the pressing and cutting of the film.

[0034] Preferably, it further includes: a second tool post support shaft 17 connected to the tool post unit, and a second roller 21 disposed on the second tool post support shaft 17;

[0035] A tool holder cylinder mounting component 22, which is connected to the second tool holder support shaft 17 and the first tool holder support shaft 13, is provided on the tool holder cylinder mounting component 22 for respectively pulling the cutting arm 18 and the swing arm component 14; the second cylinder 24 and the third cylinder 26 are respectively connected to the cutting arm 18 and the swing arm component 14 through the first cylinder support shaft 23 and the second cylinder support shaft 25.

[0036] In this way, the second roller 21 can complete the initial pressing of the film, while the first roller 16 and the cutter 20 can be driven independently to complete the second pressing and cutting of the film.

[0037] Working process: Start the first cylinder 6, and the lifting and lowering of the cylinder core controls the lifting and lowering of the entire cutting device. When the cutter is not needed, the entire cutter holder can be raised to avoid the rotation of the lower flipping frame. When needed, start the first cylinder 6 to lower it, and the second roller 21 presses the material film. Then, start the third cylinder 26 to control the first roller 16 to press the material film a second time to tighten it. Then, start the second cylinder 24 to control the cutter to cut the material film. After cutting the material film, return all cylinders to their starting positions and wait for the next use.

[0038] 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 cutting device for a gravure printing machine, characterized in that, include: A knife holder unit is provided between two opposing wall panels (1) and connected to one end of the wall panel (1); The first tool holder support shaft (13) is connected to the tool holder unit at both ends, and the roller pressing structure and the cutting structure are rotatable around the first tool holder support shaft (13).

2. The cutting device for a gravure printing machine as described in claim 1, characterized in that, It also includes a lifting unit that can drive the knife holder unit to move up and down along the height direction of the wall panel (1); The lifting unit includes a drive structure and a guide structure. The drive structure includes a first cylinder (6), a fixed seat (7) fixed on the wall panel (1), one end of the first cylinder (6) is connected to the fixed seat (7), a connector (5) is connected to the other end of the first cylinder (6), a connecting arm (4) is connected to the connector (5), and a connecting plate (8) is fixedly connected to the connecting arm (4). The guide structure includes: a guide rail (2) disposed on the inner side of the wall panel (1) in the height direction, and a slider (3) cooperating with the guide rail (2), the slider (3) being connected to the connecting arm (4).

3. The cutting device for a gravure printing machine as described in claim 2, characterized in that, The tool holder unit includes: a mounting end plate (12), one end of which is connected to the first tool holder support shaft (13), and two oppositely arranged protrusions (9) fixedly disposed at the other end of the mounting end plate, the protrusions (9) being connected to the connecting plate (8) via a bolt shaft (11).

4. The cutting device for a gravure printing machine as described in claim 1, characterized in that, Also includes: A swing arm (14) rotatably connected to the first tool holder support shaft (13), a swing arm shaft (15) at one end of the swing arm (14), and a first roller (16) on the swing arm shaft (15). A cutting arm (18) rotatably connected to the first tool holder support shaft (13), a cutting tool mounting member (19) disposed at the end of the cutting arm (18), and a cutting tool (20) clamped by the cutting tool mounting member (19).

5. The cutting device for a gravure printing machine as described in claim 4, characterized in that, Also includes: A second tool post support shaft (17) connected to the tool post unit, and a second roller (21) disposed on the second tool post support shaft (17). A tool holder cylinder mounting component (22) is provided on the tool holder cylinder mounting component (22) and the second tool holder support shaft (17) and the first tool holder support shaft (13) respectively to pull the cutting arm (18) and the swing arm component (14); the second cylinder (24) and the third cylinder (26) are respectively connected to the cutting arm (18) and the swing arm component (14) through the first cylinder support shaft (23) and the second cylinder support shaft (25).

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