Plate taking device of plate making machine

Abstract

The utility model discloses a plate taking device of a plate-making machine, which belongs to the technical field of plate-making machines and comprises a laser direct plate-making machine and two supporting seats, a front material table is arranged on one side of the laser direct plate-making machine, and a rear material table is arranged on the other side of the laser direct plate-making machine. According to the utility model, the front material table is used for placing a plurality of screens to be subjected to plate making, the rear material table is used for placing the screens subjected to plate making, and the clamping mechanism is driven to stay above the front material table, the laser direct plate making machine and the rear material table respectively by virtue of screw-thread fit between the lead screw and the movable seat; the clamping mechanism is driven by the electric push rod to move up and down, so that the clamping mechanism grabs the screen on the front material table, the grabbed screen is placed on the laser direct plate making machine for plate making, the plate-making screen is discharged to the rear material table, and the function of automatically taking the plate during plate making of the screen is achieved; and the practicability of the plate taking device of the plate making machine is improved.

Description

Technical Field

[0001] This utility model relates to the field of plate-making machine technology, and more specifically, to a plate-taking device for a plate-making machine. Background Technology

[0002] A plate-making machine is a device that directly outputs graphic information from a computer to a printing plate through a digital workflow, and is a core prepress device in the modern printing industry. Its core feature is that it eliminates the traditional plate-making processes of film production, manual plate assembly, and exposure, significantly improving plate-making efficiency and quality. The plate-making machine works by first receiving computer files, processing them through a RIP (Raster Image Processor), and then using a laser or thermal head to image the image on the printing plate, forming a latent image that can be directly printed. However, existing plate-making machines require manual placement of the screens to be made, which is labor-intensive when dealing with a large number of screens and makes it difficult to ensure the accuracy and uniformity of screen placement. Furthermore, it is inconvenient to remove the screens after plate-making. Therefore, we propose a plate-removing device for the plate-making machine. Utility Model Content

[0003] In view of the problems existing in the prior art, the purpose of this utility model is to provide a plate-taking device for a plate-making machine.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] A plate-taking device for a plate-making machine includes a laser direct plate-making machine and two support bases. A front material platform is provided on one side of the laser direct plate-making machine, and a rear material platform is provided on the other side. Vertical plates are fixedly connected to the top surfaces of the two support bases, and a movable frame is fixedly connected to the top of the two vertical plates. A lead screw is rotatably connected to the inner cavity of the movable frame. A servo motor is fixedly installed at the end of the movable frame. The output shaft of the servo motor is connected to the end of the lead screw. A movable seat is threaded onto the outer side of the lead screw. Two electric push rods are fixedly installed on the movable seat. The bottom ends of the two electric push rods extend to the bottom of the movable seat and are provided with a clamping mechanism. The side of the movable seat is in contact with the inner wall of the movable frame.

[0006] In a preferred embodiment of this utility model, the clamping mechanism includes a first square tube fixedly connected to the bottom ends of two electric push rods, a second square tube fixedly connected to the bottom surface of the first square tube, a first dual-axis motor fixedly installed in the middle of the inner cavity of the first square tube, two output shafts of the first dual-axis motor respectively fixedly connected to first screws, first telescopic columns threadedly sleeved on the outer sides of the two first screws, the ends of the two first telescopic columns extending to the outer sides of both ends of the first square tube and fixedly connected to first clamping blocks, first pressure sensors fixedly installed on the inner sides of the bottom ends of the two first clamping blocks, and the ends of the two first pressure sensors fixedly... A first anti-slip block is connected to the second square tube. A second dual-axis motor is fixedly installed in the middle of the inner cavity of the second square tube. The two output shafts of the second dual-axis motor are respectively fixedly connected to second screws. The outer sides of the two second screws are respectively threaded with second telescopic columns. The ends of the two second telescopic columns extend to the outer sides of both ends of the second square tube and are fixedly connected to second clamping blocks. The inner sides of the bottom ends of the two second clamping blocks are respectively fixedly connected to second pressure sensors. The ends of the two second pressure sensors are fixedly connected to second anti-slip blocks. The bottom surface of the second clamping block is flush with the bottom surface of the first clamping block. A fourth contact sensor is fixedly installed on the bottom surface of the second square tube.

[0007] In a preferred embodiment of this utility model, a first contact sensor is fixedly sleeved on the side of the movable frame, a second contact sensor is fixedly sleeved on the side of the movable frame, and a third contact sensor is fixedly sleeved on the side of the movable frame. The detection ends of the first contact sensor, the second contact sensor, and the third contact sensor are flush with the inner wall of the movable frame.

[0008] As a preferred embodiment of this utility model, a control panel is fixedly installed on the outer side of one of the upright plates. The control panel is electrically connected to a first contact sensor, a second contact sensor, a third contact sensor, a servo motor, an electric push rod, a first dual-axis motor, a second dual-axis motor, a first pressure sensor, a second pressure sensor, and a fourth contact sensor.

[0009] In a preferred embodiment of this utility model, the inner wall of the first square tube and the side of the first telescopic column are fitted together.

[0010] In a preferred embodiment of this utility model, the inner wall of the second square tube and the side of the second telescopic column are in contact with each other.

[0011] Compared with existing technologies, the advantages of this utility model are:

[0012] (1) In this utility model, a front material platform is used to place multiple screen printing plates to be made, and a rear material platform is used to place the screen printing plates after they have been made. The screw and the moving seat are used to drive the clamping mechanism to stop above the front material platform, the laser direct plate making machine and the rear material platform respectively. The electric push rod is used to drive the clamping mechanism to move up and down so that the clamping mechanism can grab the screen printing plates on the front material platform. The grabbed screen printing plates are placed on the laser direct plate making machine for plate making. The screen printing plates after plate making are unloaded onto the rear material platform, thus realizing the function of automatic plate picking for screen printing plate making.

[0013] (2) In this utility model, when the clamping mechanism is used to clamp the screen, the first dual-axis motor drives the two first screws to rotate. Through the threaded engagement between the two first screws and the two first telescopic columns, the two first clamping blocks move closer to each other until the inner side of the first anti-sliding block contacts both ends of the screen. When the first pressure sensor receives a certain pressure, the first dual-axis motor stops running. At the same time, the second dual-axis motor drives the two second screws to rotate. Through the threaded engagement between the two second screws and the two second telescopic columns, the two second clamping blocks move closer to each other until the inner side of the second anti-sliding block contacts both sides of the screen. When the second pressure sensor receives a certain pressure, the second dual-axis motor stops running. The screen is clamped by the second anti-sliding block and the first anti-sliding block, realizing the function of removing the screen. It also realizes the removal of screens of different shapes and sizes, which is practical. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the movable frame of this utility model;

[0016] Figure 3 This is a cross-sectional schematic diagram of the first square tube of this utility model;

[0017] Figure 4 This is a cross-sectional view of the second square tube of this utility model.

[0018] The following are the labeling instructions in the diagram: 1. Laser-to-plate machine; 2. Support base; 3. Vertical plate; 4. Moving frame; 5. Lead screw; 6. Moving base; 7. Servo motor; 8. Electric push rod; 9. Clamping mechanism; 10. Front loading platform; 11. Rear loading platform; 12. Control panel; 13. First square tube; 14. First dual-axis motor; 15. First screw; 16. First telescopic column; 17. First clamping block; 18. First pressure sensor; 19. First anti-slip block; 20. Second square tube; 21. Second dual-axis motor; 22. Second screw; 23. Second telescopic column; 24. Second clamping block; 25. Second pressure sensor; 26. Second anti-slip block; 27. First contact sensor; 28. Second contact sensor; 29. ​​Third contact sensor; 30. Fourth contact sensor. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Example 1:

[0023] Please see Figure 1-4A plate-taking device for a plate-making machine includes a laser direct plate-making machine 1 and two support bases 2. A front material platform 10 is provided on one side of the laser direct plate-making machine 1, and a rear material platform 11 is provided on the other side of the laser direct plate-making machine 1. Vertical plates 3 are fixedly connected to the top surfaces of the two support bases 2 respectively. A movable frame 4 is fixedly connected to the top of the two vertical plates 3. A lead screw 5 is rotatably connected to the inner cavity of the movable frame 4. A servo motor 7 is fixedly installed at the end of the movable frame 4. The output shaft of the servo motor 7 is connected to the end of the lead screw 5. A movable seat 6 is threaded onto the outer side of the lead screw 5. Two electric push rods 8 are fixedly installed on the movable seat 6. The bottom ends of the two electric push rods 8 extend to the bottom of the movable seat 6 and are provided with a clamping mechanism 9. The side of the movable seat 6 is in contact with the inner wall of the movable frame 4.

[0024] In this embodiment, the laser direct plate making machine 1 is provided with a structure for clamping and fixing the plate making screen. This is the prior art. The inner wall of the moving frame 4 is used to limit the moving seat 6, so that the moving seat 6 can only move along the axial direction of the lead screw 5. In addition, the moving seat 6 is provided with a threaded hole that matches the lead screw 5, so that the threaded engagement between the lead screw 5 and the moving seat 6 can drive the moving seat 6 to move laterally.

[0025] For details, please refer to Figure 1 , Figure 3 and Figure 4 The clamping mechanism 9 includes a first square tube 13 fixedly connected to the bottom ends of two electric push rods 8. A second square tube 20 is fixedly connected to the bottom surface of the first square tube 13. A first dual-axis motor 14 is fixedly installed in the middle of the inner cavity of the first square tube 13. The two output shafts of the first dual-axis motor 14 are respectively fixedly connected to first screws 15. First telescopic columns 16 are threaded onto the outer sides of the two first screws 15. The ends of the two first telescopic columns 16 extend to the outer sides of both ends of the first square tube 13 and are fixedly connected to first clamping blocks 17. First pressure sensors 18 are fixedly installed on the inner sides of the bottom ends of the two first clamping blocks 17. First anti-slip blocks 1 are fixedly connected to the ends of the two first pressure sensors 18. 9. A second dual-axis motor 21 is fixedly installed in the middle of the inner cavity of the second square tube 20. The two output shafts of the second dual-axis motor 21 are respectively fixedly connected to the second screws 22. The outer sides of the two second screws 22 are respectively threaded with second telescopic columns 23. The ends of the two second telescopic columns 23 extend to the outer sides of both ends of the second square tube 20 and are fixedly connected to the second clamping blocks 24. The inner sides of the bottom ends of the two second clamping blocks 24 are respectively fixedly connected to the second pressure sensors 25. The ends of the two second pressure sensors 25 are each fixedly connected to the second anti-slip blocks 26. The bottom surface of the second clamping blocks 24 is flush with the bottom surface of the first clamping block 17. A fourth contact sensor 30 is fixedly installed on the bottom surface of the second square tube 20.

[0026] In this embodiment, the first square tube 13 and the second square tube 20 are arranged vertically, and the long end face of the screen is clamped by two first anti-slip blocks 19, and the short side face of the screen is clamped by two second anti-slip blocks 26.

[0027] For details, please refer to Figure 2 A first contact sensor 27 is fixedly sleeved on the side of the movable frame 4, a second contact sensor 28 is fixedly sleeved on the side of the movable frame 4, and a third contact sensor 29 is fixedly sleeved on the side of the movable frame 4. The detection ends of the first contact sensor 27, the second contact sensor 28, and the third contact sensor 29 are flush with the inner wall of the movable frame 4.

[0028] In this embodiment, the positions of the movable seat 6 and the clamping mechanism 9 are detected by the first contact sensor 27, the second contact sensor 28, and the third contact sensor 29. When the movement of the movable seat 6 is detected by the second contact sensor 28, it indicates that the movable seat 6 and the clamping mechanism 9 are positioned directly above the laser direct plate-making machine 1. At this time, the screen held by the clamping mechanism 9 can be placed on the laser direct plate-making machine 1. When the movement of the movable seat 6 is detected by the third contact sensor 29, it indicates that the movable seat 6 and the clamping mechanism 9 are positioned directly above the rear feeding platform 11. At this time, the screen held by the clamping mechanism 9 after plate-making can be placed on the rear feeding platform 11. When the first contact sensor 27 detects the front end of the movable seat 6, the movable seat 6 and the clamping mechanism 9 are positioned directly above the front feeding platform 10. At the same time, the movable seat 6 and the clamping mechanism 9 reset so that the clamping mechanism 9 can be used to clamp and feed the screen to be made on the front feeding platform 10 onto the laser direct plate-making machine 1.

[0029] For details, please refer to Figures 1 to 4 A control panel 12 is fixedly installed on the outside of a vertical plate 3. The control panel 12 is electrically connected to the first contact sensor 27, the second contact sensor 28, the third contact sensor 29, the servo motor 7, the electric push rod 8, the first dual-axis motor 14, the second dual-axis motor 21, the first pressure sensor 18, the second pressure sensor 25, and the fourth contact sensor 30.

[0030] In this embodiment, the control panel 12 is used to control the first dual-axis motor 14, the second dual-axis motor 21, the servo motor 7, and the electric push rod 8. The control panel 12 is also used to process the signals detected by the first contact sensor 27, the second contact sensor 28, the third contact sensor 29, the fourth contact sensor 30, the first pressure sensor 18, and the second pressure sensor 25.

[0031] For details, please refer to Figure 3 The inner wall of the first square tube 13 and the side of the first telescopic column 16 are in contact.

[0032] In this embodiment, the inner wall of the first square tube 13 is used to limit the first telescopic column 16, so that the first telescopic column 16 can only move along the axial direction of the first screw 15.

[0033] For details, please refer to Figure 4 The inner wall of the second square tube 20 is in contact with the side of the second telescopic column 23.

[0034] In this embodiment, the inner wall of the second square tube 20 is used to limit the second telescopic column 23, so that the second telescopic column 23 can only move along the axial direction of the second screw 22.

[0035] Working principle: In use, multiple screen printing plates to be made are first stacked on the front feeding table 10. At this time, the clamping mechanism 9 is located directly above the front feeding table 10. The electric push rod 8 is started to drive the first square tube 13, the second square tube 20 and the fourth contact sensor 30 to move down. When the bottom surface of the fourth contact sensor 30 contacts the topmost screen printing plate, the electric push rod 8 stops running. At this time, the first dual-axis motor 14 and the second dual-axis motor 21 are started. The first dual-axis motor 14 drives the two first screws 15 to rotate. Through the threaded engagement between the two first screws 15 and the two first telescopic columns 16, the two first telescopic columns 16 and the two first clamping blocks 17 move closer to each other until the inner side of the first anti-slip block 19 contacts the two ends of the topmost screen printing plate. When the pressure sensor 18 receives a certain pressure, the first dual-axis motor 14 stops operating. Simultaneously, the second dual-axis motor 21 drives the two second screws 22 to rotate. Through the threaded engagement between the two second screws 22 and the two second telescopic columns 23, the two second telescopic columns 23 and the two second clamping blocks 24 move closer to each other until the inner side of the second anti-slip block 26 contacts the two sides of the uppermost screen. When the second pressure sensor 25 receives a certain pressure, the second dual-axis motor 21 stops operating. The screen is clamped by the second anti-slip block 26 and the first anti-slip block 19. Then, the electric push rod 8 is activated to drive the clamping mechanism 9 and the screen upward, and the servo motor 7 is activated to drive the lead screw 5 to rotate. Through the threaded engagement between the lead screw 5 and the moving seat 6, the moving seat 6 is rotated. The clamping mechanism 9 and the screen move. When the second contact sensor 28 detects the moving seat 6, the servo motor 7 stops running. At this time, the clamping mechanism 9 and the screen are directly above the laser direct plate-making machine 1. The electric push rod 8 is activated to drive the clamping mechanism 9 and the screen downward, so that the screen is placed on the laser direct plate-making machine 1. The first dual-axis motor 14 and the second dual-axis motor 21 are activated to reverse their output shafts, so that the two second anti-slip blocks 26 and the two first anti-slip blocks 19 move away, releasing the clamp on the screen. The electric push rod 8 is then activated to drive the clamping mechanism 9 upward. Then, the laser direct plate-making machine 1 is used to make a plate on the screen. After the plate is made, the electric push rod 8 is used again to drive the clamping mechanism 9 downward. When the fourth contact sensor 30 contacts the top surface of the screen, the electric push rod 8 is activated to drive the clamping mechanism 9 downward. Rod 8 stops operating, and clamping mechanism 9 clamps the screen again. Electric push rod 8 moves clamping mechanism 9 and screen upwards. Servo motor 7 starts, driving lead screw 5 to continue rotating. The threaded engagement between lead screw 5 and moving seat 6 moves moving seat 6, clamping mechanism 9, and screen. When third contact sensor 29 detects moving seat 6, servo motor 7 is turned off. At this point, screen is positioned above rear loading platform 11. Electric push rod 8 moves screen downwards, releasing clamping mechanism 9 from fixing screen, allowing the finished screen to be placed on rear loading platform 11. Finally, servo motor 7 starts, reversing lead screw 5. The threaded engagement between lead screw 5 and moving seat 6 resets moving seat 6 and clamping mechanism 9 to above front loading platform 10.This will allow for the subsequent loading and preparation of the screen printing plate.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A plate taking device of a platemaking machine, comprising a laser direct platemaking machine (1) and two support seats (2), characterized in that: A front material platform (10) is provided on one side of the laser direct plate making machine (1), and a rear material platform (11) is provided on the other side of the laser direct plate making machine (1). The top surfaces of the two support seats (2) are respectively fixedly connected to the upright plates (3). The top ends of the two upright plates (3) are fixedly connected to the moving frame (4). The inner cavity of the moving frame (4) is rotatably connected to the lead screw (5). The end of the moving frame (4) is fixedly installed with a servo motor (7). The output shaft of the servo motor (7) is connected to the end of the lead screw (5). The outer side of the lead screw (5) is threaded with a moving seat (6). Two electric push rods (8) are fixedly installed on the moving seat (6). The bottom ends of the two electric push rods (8) extend to the bottom of the moving seat (6) and are provided with a clamping mechanism (9). The side of the moving seat (6) is in contact with the inner wall of the moving frame (4).

2. A plate taking device of a platemaking machine according to claim 1, characterized in that: The clamping mechanism (9) includes a first square tube (13) fixedly connected to the bottom ends of two electric push rods (8), a second square tube (20) fixedly connected to the bottom surface of the first square tube (13), a first dual-axis motor (14) fixedly installed in the middle of the inner cavity of the first square tube (13), a first screw (15) fixedly connected to the two output shafts of the first dual-axis motor (14), a first telescopic column (16) threadedly sleeved on the outer side of the two first screws (15), the ends of the two first telescopic columns (16) extending to the outer sides of both ends of the first square tube (13) and fixedly connected to first clamping blocks (17), a first pressure sensor (18) fixedly installed on the inner side of the bottom end of the two first clamping blocks (17), and a first anti-slip block (19) fixedly connected to the end of the two first pressure sensors (18). The second square tube (20) has a second dual-axis motor (21) fixedly installed in the middle of its inner cavity. The two output shafts of the second dual-axis motor (21) are respectively fixedly connected to the second screws (22). The outer sides of the two second screws (22) are respectively threaded with second telescopic columns (23). The ends of the two second telescopic columns (23) extend to the outer sides of both ends of the second square tube (20) and are fixedly connected to the second clamping blocks (24). The inner sides of the bottom ends of the two second clamping blocks (24) are respectively fixedly connected to the second pressure sensors (25). The ends of the two second pressure sensors (25) are fixedly connected to the second anti-slip blocks (26). The bottom surface of the second clamping block (24) is flush with the bottom surface of the first clamping block (17). The bottom surface of the second square tube (20) is fixedly installed with the fourth contact sensor (30).

3. A plate taking device of a platemaking machine according to claim 2, characterized in that: A first contact sensor (27) is fixedly sleeved on the side of the movable frame (4), a second contact sensor (28) is fixedly sleeved on the side of the movable frame (4), and a third contact sensor (29) is fixedly sleeved on the side of the movable frame (4). The detection ends of the first contact sensor (27), the second contact sensor (28), and the third contact sensor (29) are flush with the inner wall of the movable frame (4).

4. The plate-taking device for a plate-making machine according to claim 3, characterized in that: A control panel (12) is fixedly installed on the outside of one of the upright plates (3). The control panel (12) is electrically connected to the first contact sensor (27), the second contact sensor (28), the third contact sensor (29), the servo motor (7), the electric push rod (8), the first dual-axis motor (14), the second dual-axis motor (21), the first pressure sensor (18), the second pressure sensor (25), and the fourth contact sensor (30).

5. A plate taking device of a platemaking machine according to claim 2, characterized in that: The inner wall of the first square tube (13) and the side of the first telescopic column (16) are in contact.

6. A plate taking device of a platemaking machine according to claim 2, characterized in that: The inner wall of the second square tube (20) and the side of the second telescopic column (23) are in contact.

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