Automatic register device of flexible printing machine

Abstract

The utility model discloses a flexible printing machine automatic register device which comprises a positioning plate, a fixing frame is fixedly installed on one side of the upper portion of the outer wall of the positioning plate, a telescopic mechanism capable of moving in a telescopic mode is arranged on the inner wall of the fixing frame, and a limiting mechanism is installed on one side of the inner wall of the telescopic mechanism in a connected mode. A correcting mechanism is fixedly mounted on one side of the lower portion of the outer wall of the telescopic mechanism. According to the automatic register device of the flexible printing machine, the telescopic mechanism is arranged, meanwhile, the correcting mechanism is arranged in a matched mode, in this way, automatic register can be conducted on flexible printing paper, and in this way, adjustment of the transverse position and the longitudinal position of the flexible printing paper can be achieved during adjustment.

Description

Technical Field

[0001] This utility model relates to the technical field of flexographic printing machines, specifically to an automatic plate-registration device for flexographic printing machines. Background Technology

[0002] The structure of a flexographic printing press includes the press body, inking system, paper pressing system, paper winding system, and control system. Due to its relatively simple construction, the investment in flexographic printing presses is lower than that of offset or gravure printing presses of the same size. Flexographic printing presses have a simple printing principle, clear structure, and high working efficiency, and are widely used in packaging and decoration product printing. Current flexographic printing presses require registration between the flexographic printing paper and the photocopy, but this registration is currently done manually. Therefore, we propose an automatic registration device for flexographic printing presses.

[0003] The automatic registration devices currently in use have low accuracy and poor stability when performing automatic registration, which may cause misalignment during printing, resulting in unsatisfactory printing results. Utility Model Content

[0004] The purpose of this invention is to provide an automatic registration device for a flexible printing press, in order to solve the problem that the currently used automatic registration devices mentioned in the background art have low accuracy and poor stability when performing automatic registration, which may lead to misalignment during printing and result in unsatisfactory printing results.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic plate-regulating device for a flexible printing press, comprising a positioning plate, a fixing frame fixedly installed on one side of the upper outer wall of the positioning plate, a telescopic mechanism that can be extended and retracted on the inner wall of the fixing frame, a limiting mechanism connected and installed on one side of the inner wall of the telescopic mechanism, and a correction mechanism fixedly installed on the lower side of the outer wall of the telescopic mechanism.

[0006] Preferably, the telescopic mechanism includes a hydraulic cylinder, a hydraulic rod, an L-shaped block, and a flexible printing paper placement plate. The hydraulic cylinder is fixedly installed on one side of the inner wall of the fixed frame. The output end of the hydraulic cylinder is provided with a hydraulic rod. One side of the outer wall of the hydraulic rod is provided with an L-shaped block of matching size. The flexible printing paper placement plate is movably connected to one side of the inner wall of the L-shaped block.

[0007] Preferably, the limiting mechanism includes a fixed plate, a rod, a disc, and a limiting groove. The fixed plate is fixedly installed on one side of the outer wall of the flexible printing paper placement plate. Rods are welded and installed on both sides of the outer wall of the fixed plate. A disc is fixedly installed on one side of the inner wall of the L-shaped block. Limiting grooves are formed on both sides of the inner wall of the disc.

[0008] Preferably, the insertion rod forms a sliding structure with the disk through a limiting groove, and the insertion rod is arranged in a ring array on the fixed plate.

[0009] Preferably, the correction mechanism includes a connecting block, a gear plate, an abutment block, a fixing block, a drive motor, a rotating shaft, and a gear block. The connecting block is fixedly installed below the outer wall of the flexible printing paper placement plate. A gear plate is welded and installed above the outer wall of the connecting block. An abutment block is fixedly installed on one side of the outer wall of the gear plate. A fixing block is fixedly installed on the front side of the outer wall of the positioning plate. A drive motor is movably connected to the inner wall of the fixing block. A rotating shaft is provided at the output end of the drive motor. A gear block of matching size is provided on the outer surface of the rotating shaft.

[0010] Preferably, the gear block is meshed with the connecting block via a gear plate, and the outer wall of the gear block is in close contact with the inner wall of the gear plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The automatic registration device for a flexographic printing machine, by setting a telescopic mechanism and a correction mechanism, can automatically register the flexographic printing paper, and can adjust the horizontal and vertical positions of the flexographic printing paper during adjustment.

[0013] 2. This automatic registration device for a flexographic printing machine, by setting a correction mechanism and a limiting mechanism, can ensure the stability of the flexographic printing paper when it is placed during longitudinal registration, and at the same time, ensure the accuracy of registration. Attached Figure Description

[0014] Figure 1 This is a top view of the present invention;

[0015] Figure 2 This is a diagram of the correction mechanism of this utility model;

[0016] Figure 3 This is a diagram of the limiting mechanism of this utility model;

[0017] Figure 4 This is a diagram of the telescopic mechanism of this utility model.

[0018] In the diagram: 1. Positioning plate; 2. Fixing frame; 3. Telescopic mechanism; 301. Hydraulic cylinder; 302. Hydraulic rod; 303. L-shaped block; 304. Flexible printing paper placement plate; 4. Limiting mechanism; 401. Fixing plate; 402. Insert rod; 403. Disc; 404. Limiting groove; 5. Correcting mechanism; 501. Connecting block; 502. Gear plate; 503. Abutting block; 504. Fixing block; 505. Drive motor; 506. Rotating shaft; 507. Gear block. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides a technical solution: an automatic plate-aligning device for a flexible printing machine, including a positioning plate 1, a fixed frame 2 fixedly installed on one side of the outer wall of the positioning plate 1, and a telescopic mechanism 3 provided on the inner wall of the fixed frame 2. The telescopic mechanism 3 includes a hydraulic cylinder 301, a hydraulic rod 302, an L-shaped block 303 and a flexible printing paper placement plate 304. The hydraulic cylinder 301 is fixedly installed on one side of the inner wall of the fixed frame 2. The output end of the hydraulic cylinder 301 is provided with a hydraulic rod 302. One side of the outer wall of the hydraulic rod 302 is provided with an L-shaped block 303 of matching size. One side of the inner wall of the L-shaped block 303 is movably connected to the flexible printing paper placement plate 304. When the flexible printing paper is placed on the flexible printing paper placement plate 304, the power of the hydraulic cylinder 301 is turned on, causing it to drive the L-shaped block 303 installed on the outer wall of the hydraulic rod 302 to telescopically move, thus realizing the automatic lateral alignment of the flexible printing paper.

[0021] A limiting mechanism 4 is connected and installed on one side of the inner wall of the telescopic mechanism 3. The limiting mechanism 4 includes a fixed plate 401, a rod 402, a disc 403, and a limiting groove 404. The fixed plate 401 is fixedly installed on one side of the outer wall of the flexible printing paper placement plate 304. The rod 402 is welded and installed on both sides of the outer wall of the fixed plate 401. The disc 403 is fixedly installed on one side of the inner wall of the L-shaped block 303. The limiting groove 404 is opened on both sides of the inner wall of the disc 403. When the flexible printing paper placement plate 304 moves, it can drive the rod 402 connected to the fixed plate 401. 2. The flexible printing paper placement plate 304 moves within the limiting groove 404 on the inner wall of the disc 403, which enables the stability of the flexible printing paper placement plate 304 during movement. This enables stable automated plate alignment of the flexible printing paper. The insertion rod 402 forms a sliding structure with the disc 403 through the limiting groove 404, and the insertion rod 402 is arranged in a ring array on the fixed plate 401. This allows for smooth longitudinal adjustment of the position of the flexible printing paper placement plate 304, and also prevents angular deviations from occurring when the flexible printing paper is placed.

[0022] A straightening mechanism 5 is fixedly installed on one side of the lower outer wall of the telescopic mechanism 3. The straightening mechanism 5 includes a connecting block 501, a gear plate 502, an abutment block 503, a fixing block 504, a drive motor 505, a rotating shaft 506, and a gear block 507. The connecting block 501 is fixedly installed on the lower outer wall of the flexible printing paper placement plate 304. The gear plate 502 is welded and installed on the upper outer wall of the connecting block 501. An abutment block 503 is fixedly installed on one side of the outer wall of the gear plate 502. A fixing block 504 is fixedly installed on the front side of the outer wall of the positioning plate 1. The drive motor 505 is movably connected to the inner wall of the fixing block 504. A rotating shaft 506 is provided at the output end of the drive motor 505. A gear block 507 of matching size is provided on the outer surface of the rotating shaft 506. The abutment block 503 abuts against the gear block 507, thereby driving the motor 505 to move forward. The motor 505 moves within the inner wall of the fixed block 504. When the power to the drive motor 505 is turned on, it drives the gear block 507 mounted on the outer wall of the rotating shaft 506 to rotate. At the same time, the gear block 507 meshes with the gear plate 502, which moves the flexible printing paper placement plate 304 back and forth. The flexible printing paper placement plate 304 is movably connected to the L-shaped block 303, which allows for longitudinal alignment of the flexible printing paper. The gear block 507 meshes with the connecting block 501 through the gear plate 502, and the outer wall of the gear block 507 is tightly fitted with the inner wall of the gear plate 502. This ensures stable longitudinal adjustment of the position of the flexible printing paper placement plate 304 and prevents the flexible printing paper placement plate 304 from sliding during longitudinal adjustment.

[0023] Working principle: First, place the device in the designated position and place the flexible printing paper on the flexible printing paper placement plate 304. Turn on the power to the hydraulic cylinder 301, causing it to drive the L-shaped block 303 mounted on the outer wall of the hydraulic rod 302 to extend and retract. This enables automated lateral alignment of the flexible printing paper. At the same time, the abutment block 503 abuts against the gear block 507, causing the drive motor 505 to move within the inner wall of the fixed block 504. Turn on the power to the drive motor 505, causing it to drive the gear block 507 mounted on the outer wall of the rotating shaft 506 to rotate. Simultaneously, the gear block 507 meshes with the gear plate 502. The connection allows the flexible printing paper placement plate 304 to move back and forth. The flexible printing paper placement plate 304 is movably connected to the L-shaped block 303, enabling longitudinal alignment of the flexible printing paper. When the flexible printing paper placement plate 304 moves, it can drive the insertion rod 402 connected to the fixed plate 401 to move within the limiting groove 404 opened in the inner wall of the disc 403. This ensures the stability of the flexible printing paper placement plate 304 during movement, thus achieving stable automated alignment of the flexible printing paper. This completes the operation process of an automatic alignment device for a flexible printing machine.

[0024] 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. An automatic plate-registration device for a flexographic printing press, characterized in that, The system includes a positioning plate (1), a fixing frame (2) is fixedly installed on the upper side of the outer wall of the positioning plate (1), a telescopic mechanism (3) is provided on the inner wall of the fixing frame (2), a limiting mechanism (4) is connected and installed on one side of the inner wall of the telescopic mechanism (3), and a correction mechanism (5) is fixedly installed on the lower side of the outer wall of the telescopic mechanism (3).

2. The automatic plate-registration device for a flexographic printing press according to claim 1, characterized in that: The telescopic mechanism (3) includes a hydraulic cylinder (301), a hydraulic rod (302), an L-shaped block (303), and a flexible printing paper placement plate (304). The hydraulic cylinder (301) is fixedly installed on one side of the inner wall of the fixed frame (2). The output end of the hydraulic cylinder (301) is provided with a hydraulic rod (302). The outer wall of the hydraulic rod (302) is provided with an L-shaped block (303) of matching size. The inner wall of the L-shaped block (303) is movably connected to the flexible printing paper placement plate (304).

3. The automatic plate-registering device for a flexographic printing press according to claim 2, characterized in that: The limiting mechanism (4) includes a fixing plate (401), a rod (402), a disc (403), and a limiting groove (404). The fixing plate (401) is fixedly installed on one side of the outer wall of the flexible printing paper placement plate (304). The rod (402) is welded and installed on both sides of the outer wall of the fixing plate (401). The disc (403) is fixedly installed on one side of the inner wall of the L-shaped block (303). The limiting groove (404) is opened on both sides of the inner wall of the disc (403).

4. The automatic plate-registration device for a flexographic printing press according to claim 3, characterized in that: The insertion rod (402) forms a sliding structure with the disk (403) through the limiting groove (404), and the insertion rod (402) is arranged in a ring array on the fixing plate (401).

5. The automatic plate-registering device for a flexographic printing press according to claim 2, characterized in that: The correction mechanism (5) includes a connecting block (501), a gear plate (502), an abutment block (503), a fixing block (504), a drive motor (505), a rotating shaft (506), and a gear block (507). The connecting block (501) is fixedly installed below the outer wall of the flexible printing paper placement plate (304). The gear plate (502) is welded and installed on the upper part of the outer wall of the connecting block (501). The abutment block (503) is fixedly installed on one side of the outer wall of the gear plate (502). The fixing block (504) is fixedly installed on the front side of the outer wall of the positioning plate (1). The drive motor (505) is movably connected to the inner wall of the fixing block (504). The output end of the drive motor (505) is provided with a rotating shaft (506). The outer surface of the rotating shaft (506) is provided with a gear block (507) of matching size.

6. The automatic plate-registering device for a flexographic printing press according to claim 5, characterized in that: The gear block (507) is meshed with the connecting block (501) through the gear plate (502), and the outer wall of the gear block (507) is tightly fitted with the inner wall of the gear plate (502).

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