Plate-making pressing adjusting mechanism of printing plate-making machine

Abstract

The utility model discloses a plate-making pressing adjusting mechanism of a printing plate-making machine, which comprises a bottom plate, a mounting frame fixedly mounted on the bottom plate, a threaded rod rotatably connected in the mounting frame, two sliding seats sleeved on the threaded rod, side edge positioning frames fixedly mounted at the front ends of the two sliding seats, fixing frames fixedly mounted at the top ends of the two side edge positioning frames, and a pressing plate fixedly mounted on the fixing frames. And lead screws are rotationally connected to the positions, located on the front portions of the fixing frames, in the two side edge positioning frames correspondingly, the two lead screws are sleeved with sliding blocks correspondingly, and moving frames are fixedly installed at the top ends of the two sliding blocks correspondingly. The plate-making pressing adjusting mechanism of the printing plate-making machine can limit the side edge of a material plate in all directions, so that the stability of the material plate compressed in the plate-making machine is further improved, meanwhile, the air cylinder can be automatically triggered to stop working after the downward pressing sleeve is pressed on the material plate and proper pressure is applied, and the working efficiency is improved. And the problem that the material plate is damaged due to overlarge pressure applied by the air cylinder in the manual operation process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of printing plate-making machines, in particular to a plate-making pressing and adjusting mechanism of a printing plate-making machine. Background Art

[0002] A printing platesetter is a machine that processes and finishes printed sheets into finished products. It produces printing plates based on the needs of various types of materials, including relief, lithographic, gravure, and screen printing. These machines are categorized as either text-making machines or image-making machines. To ensure accurate positioning of the printing plate, a plate-holding mechanism is required to position the material.

[0003] After searching, the patent application number CN202121145767.5 discloses a plate-making clamping adjustment mechanism of a printing plate-making machine, including a base, a workbench, a resistance block, a side plate, a top clamping assembly and a stabilizing column. The top of the base is fixedly connected to the workbench, the top of the workbench is fixedly connected to the resistance block, the top of the base is fixedly connected to the side plate, the top of the base is fixedly connected to the side clamping assembly, the left side of the side clamping assembly is fixedly connected to the side plate, the top of the side plate is fixedly connected to the top clamping assembly, the bottom of the top clamping assembly is fixedly connected to a stabilizing column fixedly connected to the bottom and the base, the side clamping assembly includes a servo motor fixedly connected to the base, and the output shaft of the servo motor is fixedly connected to a rotating rod. The plate-making clamping adjustment mechanism of the printing plate-making machine realizes the function that the clamping adjustment mechanism can automatically perform the side clamping operation.

[0004] However, this patent still has some shortcomings. In actual use, this patent can only compress and limit the two sides of the material, and the front and rear ends of the material lack limiting structures. Therefore, there are still certain deficiencies in the stability of the material after compression. There is still a problem that the material will detach from the workbench from the side area, affecting the plate making work.

[0005] Therefore, we propose a plate-making pressing adjustment mechanism for a printing plate-making machine. Utility Model Content

[0006] The purpose of the utility model is to provide a plate-making pressing and adjusting mechanism for a printing plate-making machine, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plate-making pressure adjustment mechanism of a printing plate-making machine, comprising a base plate, the base plate being fixedly mounted with a mounting bracket, the mounting bracket being rotatably connected with a threaded rod in the mounting bracket, two slides being sleeved on the threaded rod, the front ends of the slides being fixedly mounted with side positioning brackets, the top ends of the two side positioning brackets being fixedly mounted with a fixed bracket, the front ends of the two side positioning brackets being rotatably connected with a screw rod in the front of the fixed bracket, the two screw rods being sleeved with a slider, the top ends of the two sliders being fixedly mounted with a moving bracket, the top ends of the two moving brackets and the fixed brackets being fixedly mounted with a cylinder, the outer sides of the output ends of the multiple cylinders being slidably sleeved with a downward pressure sleeve, the front ends of the two moving brackets being fixedly mounted with a front baffle, and a material plate being placed between the two side positioning brackets on the base plate.

[0008] Optionally, a pressure plate is fixedly installed on the output end of each of the cylinders, a touch-type switch is fixedly installed on the inner bottom end of each of the pressing sleeves, a spring is fixedly sleeved on the outer side of the touch-type switch at the inner bottom end of each of the pressing sleeves, and the top end of each of the springs is fixedly installed on the pressure plate. This design is convenient for the use of the device.

[0009] Optionally, the output ends of the plurality of cylinders extend out of the bottom ends of the movable frame and the fixed frame. This design facilitates the use of the device.

[0010] Optionally, a rubber seat is fixedly mounted on the bottom end of each of the plurality of pressing sleeves, and the rubber seat can play a role of buffering and protection when the pressing sleeve is pressed onto the material plate.

[0011] Optionally, a motor is fixedly installed in the front of the screw rod in the two side positioning frames, and the output ends of the two motors are fixedly installed on the screw rod. The use of the device is facilitated by driving the screw rod to rotate through the motor.

[0012] Optionally, a motor is fixedly mounted on the right side of the mounting frame, and the output end of the motor is fixedly mounted on the threaded rod. The motor drives the threaded rod to rotate, which is beneficial to the use of the device.

[0013] Optionally, two brackets are fixedly installed on the top of the front end of the base plate, a sliding rod is fixedly installed between the two brackets, and the front ends of the two side positioning frames are both mounted on the sliding rod, and the front ends of the side positioning frames can be limited by the sliding rod.

[0014] Optionally, the threaded rod is provided with two sections of threads facing each other, and the two slides are respectively mounted on the two sections of threads. This design is convenient for the use of the device.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] Through the mutual cooperation of the side positioning frame, front baffle, movable frame, slider, motor, screw rod, slide seat, threaded rod, motor, pressing sleeve, pressure plate, spring and touch-pressure switch, the side of the material plate can be limited in all directions, thereby further improving the stability of the material plate after being compressed in this equipment. At the same time, after the pressing sleeve is pressed on the material plate and applies appropriate pressure, the cylinder is automatically triggered to stop working, avoiding the problem of damage to the material plate due to excessive pressure applied by the cylinder during manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a plate-making pressing and adjusting mechanism of a printing plate-making machine according to the present invention;

[0018] Figure 2 This is a cross-sectional view of a plate-making pressing and adjusting mechanism of a printing plate-making machine according to the present invention;

[0019] Figure 3 This is a cross-sectional view of a mounting frame in a plate-making pressing and adjusting mechanism of a printing plate-making machine according to the present invention;

[0020] Figure 4 The utility model is a cross-sectional view of a pressing sleeve in a plate-making pressing and adjusting mechanism of a printing plate-making machine.

[0021] Figure 5 This utility model is a plate making pressing and adjusting mechanism of a printing plate making machine. Figure 4 A magnified view of center.

[0022] In the figure: 1. Base plate; 2. Mounting frame; 3. Side positioning frame; 4. Material plate; 5. Touch switch; 6. Front baffle; 7. Fixed frame; 8. Moving frame; 9. Slider; 10. Motor; 11. Screw; 12. Slide seat; 13. Threaded rod; 14. Motor; 15. Cylinder; 16. Press sleeve; 17. Pressure plate; 18. Spring; 19. Rubber seat; 20. Bracket; 21. Slide rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 5The utility model provides a plate making pressure adjustment mechanism of a printing plate making machine, including a base plate 1, a mounting bracket 2 is fixedly mounted on the base plate 1, a threaded rod 13 is rotatably connected in the mounting bracket 2, two slides 12 are sleeved on the threaded rod 13, the front ends of the two slides 12 are fixedly mounted with side positioning brackets 3, the tops of the two side positioning brackets 3 are fixedly mounted with a fixed bracket 7, the two side positioning brackets 3 are rotatably connected to the front of the fixed bracket 7, the two side positioning brackets 3 are rotatably connected to the front of the fixed bracket 7, the two screw rods 11 are sleeved with sliders 9, the tops of the two sliders 9 are fixedly mounted with a moving bracket 8, the two moving brackets 8 and the tops of the fixed bracket 7 are fixedly mounted with cylinders 15, the outer sides of the output ends of the multiple cylinders 15 are slidably sleeved with a pressing sleeve 16, the front ends of the two moving brackets 8 are fixedly mounted with a front baffle 6, and a material plate 4 is placed between the two side positioning brackets 3 on the base plate 1.

[0025] A pressure plate 17 is fixedly installed on the output end of the multiple cylinders 15, and a touch-pressure switch 5 is fixedly installed on the bottom end of each pressing sleeve 16. A spring 18 is fixedly sleeved on the outside of the touch-pressure switch 5 at the bottom end of each pressing sleeve 16. The top of each spring 18 is fixedly installed on the pressure plate 17. This design is conducive to the use of this equipment. The output ends of the multiple cylinders 15 extend out of the bottom ends of the movable frame 8 and the fixed frame 7. This design is conducive to the use of this equipment. The bottom ends of the multiple pressing sleeves 16 are fixedly installed with rubber seats 19, which can be used to cushion the pressure sleeve 16 and press it on the material plate 4 through the rubber seat 19. A motor is fixedly installed in front of the screw rod 11 in the two side positioning frames 3. 10. The output ends of the two motors 10 are fixedly mounted on the screw rod 11. The rotation of the screw rod 11 by the motor 10 is beneficial to the use of this device. A motor 14 is fixedly mounted on the right side of the mounting frame 2. The output end of the motor 14 is fixedly mounted on the threaded rod 13. The rotation of the threaded rod 13 by the motor 14 is beneficial to the use of this device. Two brackets 20 are fixedly mounted on the top front end of the base plate 1. A slide rod 21 is fixedly mounted between the two brackets 20. The front ends of the two side positioning frames 3 are both mounted on the slide rod 21. The front ends of the side positioning frames 3 can be limited by the slide rod 21. Two opposite threads are provided on the threaded rod 13, and the two slides 12 are respectively mounted on the two threads. This design is beneficial to the use of this device.

[0026] Working principle: This device is connected to an external PLC controller. When in use, the material plate 4 to be printed is placed on the bottom plate 1 between the two side positioning frames 3, so that the rear end of the material plate 4 is against the front end of the mounting frame 2, and the switch of the motor 14 is turned on. The motor 14 drives the threaded rod 13 to rotate. At this time, the two slides 12 drive the two side positioning frames 3 to slide toward each other, so that the two sides of the material plate 4 can be limited. Then turn on the switch of the motor 10. The motor 10 drives the screw rod 11 to rotate, so that the two sliders 9 drive the moving frame 8 and the front baffle 6 to slide backward, so that the rear ends of the two front baffles 6 are against the front end of the material plate 4 and stop, so that the material plate 4 can be limited in all directions. Finally, turn on the switch of the cylinder 15, and the output end of the cylinder 15 is The dynamic pressing sleeve 16 and the rubber seat 19 are pressed down to the top of the material plate 4. As the output end of the cylinder 15 is continuously pressed down, the extrusion plate 17 will compress the spring 18. When the bottom end of the extrusion plate 17 touches the touch switch 5, the touch switch 5 will send a stop command to the PLC controller, and the PLC controller stops the cylinder 15 from continuing to work. The platemaking clamping adjustment mechanism of this printing platemaking machine is easy to use. Through the above-mentioned components, it can form a full range of limits on the side of the material plate 4, thereby further improving the stability of the material plate 4 after being clamped in this equipment. At the same time, after the pressing sleeve 16 is pressed on the material plate 4 to apply appropriate pressure, the cylinder 15 can be automatically triggered to stop working, avoiding the problem of damage to the material plate 4 due to excessive pressure applied by the cylinder 15 during manual operation.

[0027] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plate-making pressing and adjusting mechanism for a printing plate-making machine, characterized in that: The invention comprises a bottom plate (1), a mounting frame (2) is fixedly mounted on the bottom plate (1), a threaded rod (13) is rotatably connected in the mounting frame (2), two slides (12) are sleeved on the threaded rod (13), the front ends of the two slides (12) are fixedly mounted with side positioning frames (3), the top ends of the two side positioning frames (3) are fixedly mounted with a fixing frame (7), the front ends of the two side positioning frames (3) are rotatably connected with a screw rod (11), and the two The screw rod (11) is provided with a slider (9), the top ends of the two sliders (9) are fixedly mounted with a movable frame (8), the top ends of the two movable frames (8) and the fixed frame (7) are fixedly mounted with a cylinder (15), the outer sides of the output ends of the plurality of cylinders (15) are slidably sleeved with a pressing sleeve (16), the front ends of the two movable frames (8) are fixedly mounted with a front baffle (6), and a material plate (4) is placed on the bottom plate (1) between the two side positioning frames (3).

2. A plate-making pressing and adjusting mechanism for a printing plate-making machine according to claim 1, characterized in that: A pressure plate (17) is fixedly mounted on the output ends of the plurality of cylinders (15), a touch-type switch (5) is fixedly mounted on the inner bottom end of each of the pressing sleeves (16), a spring (18) is fixedly sleeved on the outer side of the touch-type switch (5) at the inner bottom end of each of the pressing sleeves (16), and the top end of each of the springs (18) is fixedly mounted on the pressure plate (17).

3. The plate-making pressing and adjusting mechanism of a printing plate-making machine according to claim 1, characterized in that: The output ends of the plurality of cylinders (15) extend out of the bottom ends of the movable frame (8) and the fixed frame (7).

4. The plate-making pressing and adjusting mechanism of a printing plate-making machine according to claim 1, characterized in that: The bottom ends of the plurality of pressing sleeves (16) are all fixedly mounted with rubber seats (19).

5. The plate-making pressing and adjusting mechanism of a printing plate-making machine according to claim 1, characterized in that: A motor (10) is fixedly mounted in front of the screw rod (11) in the two side positioning frames (3), and the output ends of the two motors (10) are fixedly mounted on the screw rod (11).

6. The plate-making pressing and adjusting mechanism of a printing plate-making machine according to claim 1, characterized in that: A motor (14) is fixedly mounted on the right side of the mounting frame (2), and an output end of the motor (14) is fixedly mounted on the threaded rod (13).

7. The plate-making pressing and adjusting mechanism of a printing plate-making machine according to claim 1, characterized in that: Two brackets (20) are fixedly installed on the top of the front end of the bottom plate (1), a slide bar (21) is fixedly installed between the two brackets (20), and the front ends of the two side positioning frames (3) are both sleeved on the slide bar (21).

8. The plate-making pressing and adjusting mechanism of a printing plate-making machine according to claim 1, characterized in that: The threaded rod (13) is provided with two sections of threads facing each other, and the two slide seats (12) are respectively sleeved on the two sections of threads.

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