Electric eye angle adjusting device for gravure printing of reel hologram paper

Abstract

The utility model discloses an electric eye angle adjusting device for reel hologram paper intaglio printing, which belongs to the field of reel hologram paper intaglio printing and comprises a connecting rod, an adjusting rod and an electric eye device, a first end of the connecting rod is provided with a fixing block used for fixing the connecting rod on a printing system, and a second end of the connecting rod is provided with a sleeve. A rotatable bearing seat is arranged on the sleeve, the first end of the adjusting rod is fixed to the bearing seat, a clamping head is fixed to the second end of the adjusting rod, and the electric eye device is fixed to the clamping head. The electric eye angle adjusting device solves the problem that the angle between an existing electric eye and a reference cursor is difficult to adjust, the position and the angle of the electric eye can be conveniently adjusted through the adjusting rod capable of moving up and down and rotating front and back, reflected light reflected into the electric eye by laser paper is weakened, accurate overprinting of the laser paper is achieved, and the electric eye angle adjusting device is simple in structure and convenient to operate.

Description

Technical Field

[0001] The utility model belongs to the field of roll laser paper gravure printing, and particularly relates to an electric eye angle adjustment device for roll laser paper gravure printing. Background Art

[0002] Traditional printing overprinting is to print the overprint cursor directly on the paper, and use an electric eye to scan the distance between the overprint cursors to achieve accurate overprinting.

[0003] For most papers, the reflected light from the base paper remains largely unchanged during the printing process, resulting in a very stable photoelectric signal from the registration system. However, when printing on laser paper, the reflected light from the base paper varies significantly during the printing process. This can cause the gravure printing press's electronic eye to be unable to accurately identify the register cursor on the laser paper, preventing accurate registration.

[0004] Existing automatic overprinting technology involves fixing a cursor disk at the geometric center of the plate roller's shaft head, rotating synchronously with it. At least two identically shaped reference cursors are evenly spaced along the outer circumference of the cursor disk. These reference cursors match the shape of the overprint cursors. This technology primarily targets light and transparent colors. For overprinting on laser paper, a white or dark background is placed between the printed colors to help shield the laser paper from reflections. Adjusting the angle of the optical eye is then used to mitigate the light reflected from the laser paper into the optical eye. However, in existing overprinting equipment, the position and angle of the optical eye are often fixed, making adjustment difficult and inconvenient. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the existing technology and provide an electric eye angle adjustment device for roll laser paper gravure printing, which solves the problem of difficulty in adjusting the angle between the existing electric eye and the laser paper cursor. The position and angle of the electric eye can be easily adjusted by using an adjustment rod that can be moved up and down and rotated back and forth, thereby reducing the reflected light reflected by the laser paper into the electric eye and achieving accurate overprinting of the laser paper. The utility model has a simple structure and is easy to operate.

[0006] In order to solve the above technical problems, the utility model provides an electric eye angle adjustment device for roll laser paper gravure printing, including a connecting rod, an adjusting rod and an electric eye device. The first end of the connecting rod is provided with a fixing block for fixing it to the printing system, the second end of the connecting rod is installed with a sleeve, and a rotatable bearing seat is provided on the sleeve. The first end of the adjusting rod is fixed to the bearing seat, and the second end of the adjusting rod is fixed with a clamping head, and the electric eye device is fixed on the clamping head.

[0007] As a further description of the above technical solution:

[0008] The second end of the connecting rod is inserted into the sleeve and is locked by a second fastening bolt, which is a T-shaped handle bolt.

[0009] As a further description of the above technical solution:

[0010] The electric eye device is provided with a mounting seat, which is fixed on the clamping block. The clamping block is fixed on the clamping head through a third fastening bolt. The third fastening bolt is a T-shaped handle bolt.

[0011] As a further description of the above technical solution:

[0012] A first through hole for the connecting rod to pass through is opened on the fixing block. The first end of the connecting rod passes through the first through hole and is locked by a first fastening bolt. The first fastening bolt is a T-shaped handle bolt.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0014] 1. The electric eye angle adjustment device of the present invention manually loosens the second fastening bolt to adjust the position of the sleeve on the connecting rod, thereby adjusting the vertical position of the adjustment rod, that is, adjusting the up and down position of the electric eye;

[0015] 2. Use the rotation of the bearing seat to rotate the adjusting rod, driving the electric eye fixed at the second end of the adjusting rod to rotate together, and adjust the front and rear position of the electric eye;

[0016] 3. Loosen the third fastening bolt to raise or lower the photoelectric eye and adjust the angle of the photoelectric eye;

[0017] 4. All fastening bolts used are T-handle bolts, which can adjust the position and angle of the electric eye without the help of wrenches and other tools, which is convenient and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the electric eye angle adjustment device of the utility model.

[0019] Figure 2 yes Figure 1 Enlarged view of the middle M part.

[0020] Figure 3 It is a schematic diagram of the fixed position of the electric eye angle adjustment device of the utility model.

[0021] Legend:

[0022] 1-Fixed block; 2-First fastening bolt; 3-Connecting rod; 4-Sleeve; 5-Second fastening bolt; 6-Bearing seat; 7-Adjusting rod; 8-Clamping head; 9-Clamping block; 10-Third fastening bolt; 11-Fixed bracket; 12-Mounting seat; 100-Overprinting device; 110-Cursor plate; 120-Controller; 130-Electric eye device. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] This embodiment provides an electric eye angle adjustment device for roll laser paper gravure printing, such as Figure 1 — Figure 3 As shown, it includes a connecting rod 3, an adjusting rod 7 and an electric eye device 130. The first end of the connecting rod 3 is provided with a fixed block 1, which is welded to the controller 120 of the overprinting device 100. The fixed block 1 has a through hole. The first end of the connecting rod 3 is inserted into the through hole and is locked to the fixed block 1 by a first fastening bolt 2. The first fastening bolt 2 is a T-handle bolt, which facilitates the installation and removal of the connecting rod 3. The second end of the connecting rod 3 is inserted into the sleeve 4 and is locked to the sleeve 4 by a second fastening bolt 5. The second fastening bolt 5 is a T-handle bolt, which facilitates the adjustment of the position of the sleeve 4 on the connecting rod 3. The sleeve 4 is also fixed with a bearing seat 6, which is provided with a through hole. The first end of the adjusting rod 7 is inserted into the through hole and fixed. When the sleeve 4 moves along the connecting rod, the adjusting rod 7 also moves with it. The top end of the second end of the adjusting rod 7 is fixed with a clamping head 8, which has a clamping block 9 inside. The clamping block 9 is locked inside the clamping head 8 by a third fastening bolt 10. The electric eye device 130 is provided with a mounting base 12, and a fixing bracket 11 is welded on the mounting base 12. The fixing bracket 11 is fixed on the clamping block 9. The third fastening bolt 10 is a T-handle bolt. Manually loosening the third fastening bolt 10 can make the clamping block 9 rotate in the clamping head 8, so that the electric eye device 130 rotates together to adjust the vertical angle of the electric eye.

[0025] The electric eye angle adjustment device for roll-type laser paper gravure printing of the present invention can adjust the vertical position of the adjustment rod 7 by using the second fastening bolt 5 as needed, that is, adjust the up and down position of the electric eye; use the rotation of the bearing seat 6 to adjust the front and back position of the electric eye; use the third fastening bolt 10 to adjust the upward or downward angle of the electric eye, so as to solve the problem that the existing electric eye cannot accurately identify the overprint cursor on the laser paper, conveniently adjust the position and angle of the electric eye, weaken the reflected light reflected by the laser paper into the electric eye, and realize accurate overprinting of the laser paper, with a simple structure and easy operation.

[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the scope of protection of the present invention.

Claims

1. The electric eye angle adjustment device for roll-to-roll laser paper gravure printing is characterized by: It includes a connecting rod, an adjusting rod and an electric eye device. The first end of the connecting rod is provided with a fixing block for fixing it to the printing system. The second end of the connecting rod is installed with a sleeve, and a rotatable bearing seat is provided on the sleeve. The first end of the adjusting rod is fixed to the bearing seat, and the second end of the adjusting rod is fixed with a clamping head, and the electric eye device is fixed on the clamping head.

2. The electric eye angle adjustment device for roll-to-roll laser paper gravure printing according to claim 1, characterized in that: The second end of the connecting rod is inserted into the sleeve and is locked by the second fastening bolt.

3. The electric eye angle adjustment device for roll-to-roll laser paper gravure printing according to claim 2, characterized in that: The second fastening bolt is a T-shaped handle bolt.

4. The electric eye angle adjustment device for roll-to-roll laser paper gravure printing according to claim 1 or 2, characterized in that: The electric eye device is provided with a mounting seat, which is fixed on the clamping block, and the clamping block is fixed on the clamping head through a third fastening bolt.

5. The electric eye angle adjustment device for roll-to-roll laser paper gravure printing according to claim 4, characterized in that: The third fastening bolt is a T-shaped handle bolt.

6. The electric eye angle adjustment device for roll-to-roll laser paper gravure printing according to claim 1, characterized in that: The fixing block is provided with a first through hole for the connecting rod to pass through. The first end of the connecting rod passes through the first through hole and is locked by a first fastening bolt.

7. The electric eye angle adjustment device for roll-to-roll laser paper gravure printing according to claim 6, characterized in that: The first fastening bolt is a T-shaped handle bolt.

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