A cylinder operating side telescopic mechanism

Abstract

The present application belongs to the technical field of printing machine, and particularly discloses a version cylinder operation side telescopic mechanism, which comprises a roller shaft arranged in a cylindrical structure, and a transmission side base connected to one end of the roller shaft; the surface of the roller shaft is connected with a moving mechanism, and the moving mechanism comprises: an operation side base connected to one end of the roller shaft, a lifting mechanism two fixedly connected to the bottom of the operation side base, a lifting mechanism one installed at the bottom of the transmission side base, and a motor drive device fixedly connected to the end of the transmission side base. The version cylinder operation side telescopic mechanism is provided with a moving mechanism, which can conveniently take down the version cylinder from the surface of the roller shaft; the lifting mechanism one and the lifting mechanism two drive the roller shaft to move up and down, and the cylinder and the electric drive member drive the roller shaft to separate from the operation side base, so that the roller shaft loses the blockage on one side, and the version cylinder on the surface of the roller shaft can be taken and placed through the place, thereby improving the efficiency of replacing the printing version cylinder.

Description

Technical Field

[0001] This invention relates to the field of printing press technology, specifically to a telescopic mechanism for the operating side of a printing cylinder. Background Technology

[0002] A printing press is a machine for printing text and images. A modern printing press generally consists of mechanisms for plate mounting, inking, impression, and paper feeding. Its working principle is as follows: First, the text and images to be printed are made into a printing plate, which is then mounted on the printing press. Then, ink is applied to the areas of the printing plate containing the text and images, either manually or by the printing press itself. The ink is then directly or indirectly transferred to paper or other substrates such as textiles, metal plates, plastics, leather, wood, glass, and ceramics, thus reproducing a printed product identical to the printing plate. Printing presses are classified according to the type of printing plate: letterpress, planographic, gravure, and screen printing presses. They are also classified according to the plate mounting and impression structure: flatbed, rotary, and rotary printing presses. A letterpress printing press uses a letterpress plate to complete the printing process; a planographic printing press uses a planar plate; a gravure printing press uses a gravure plate; and a screen printing press uses a screen. The printing plate cylinder is a cylindrical printing plate or its support on a printing press. Widely used in printing machinery, it is a crucial component. The quality of the printing plate cylinder directly affects the printing quality. During operation, information is printed onto the paper surface via the printing plate cylinder. For different printing information, the printing plate cylinder must be replaced accordingly. This requires removing the printing plate cylinder from the bearing surface and installing a cylinder that matches the printing content. However, existing printing presses do not allow for convenient replacement of the printing plate cylinder from the bearing surface, making it inconvenient and cumbersome. This can negatively impact work efficiency and ultimately affect the operation of the printing press. Summary of the Invention

[0003] The purpose of this invention is to provide a telescopic mechanism for the operating side of the printing plate cylinder, so as to solve the problems mentioned in the background art, such as the inconvenience of replacing the printing plate cylinder on the bearing surface, the cumbersome steps of replacing the printing plate cylinder.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a telescopic mechanism for the operating side of a printing cylinder, comprising a roller shaft configured as a cylindrical structure, and a transmission side base connected to one end of the roller shaft; The roller shaft is connected to a moving mechanism, which includes: an operating side base connected to one end of the roller shaft; a second lifting mechanism fixedly connected to the bottom of the operating side base; a first lifting mechanism installed at the bottom of the transmission side base; a motor drive device fixedly connected to the end of the transmission side base; an electrical drive component connected to the surface of the motor drive device; a cylinder connected to one side of the operating side base; a mounting bracket connected to the other side of the cylinder; and an electrical drive component fixedly installed on the surface of the mounting bracket.

[0005] Preferably, the roller shaft is provided with a rotating mechanism, which includes: a double-headed motor embedded inside the roller shaft, with both outputs of the double-headed motor fixedly connected to a rotating shaft; a cavity 1 symmetrically embedded inside the roller shaft, with a gear connected to the rotating shaft inserted into the cavity 1; the gear being disposed inside the cavity 1, with a rack symmetrically fixedly connected to the surface of the gear; a groove 1 embedded inside the surface of the roller shaft, with a limiting rubber plate connected inside the groove 1, and the end of the rack penetrating the surface of the roller shaft and connected to the limiting rubber plate; a second cavity symmetrically embedded inside the roller shaft, with an airbag 1 connected to the inner wall of the second cavity; a sleeve inserted into the cavity 1 by the end of the rotating shaft, with the sleeve disposed inside the cavity 1, and a pressing plate connected to the other end of the sleeve; and a second groove 2 embedded inside the surface of the roller shaft, with an airbag 2 embedded inside the groove 2.

[0006] By adopting the above technical solution, the rotating mechanism can easily fix the printing cylinder on the surface of the roller shaft through the limiting rubber plate, which can easily fix the position of the printing cylinder and prevent the position of the printing cylinder from shifting.

[0007] Preferably, the transmission-side base and the operation-side base are symmetrically arranged on both sides of the roller shaft, and both the transmission-side base and the operation-side base are connected to the surface of the mounting frame, and both the transmission-side base and the operation-side base are slidably connected to the mounting frame.

[0008] Using the above technical solution, the first lifting mechanism drives the transmission side base to move, so that the transmission side base slides on the surface of the mounting frame. At the same time, the second lifting mechanism drives the operating side base to slide on the surface of the mounting frame, which can change the position of the roller.

[0009] Preferably, the electrical drive component is connected to the mounting bracket, and the output shaft of the electrical drive component is connected to the surface of the transmission side base.

[0010] Using the above technical solution, when the lifting mechanism drives the transmission side base to move, the transmission side base drives the electrical drive component to slide on the surface of the mounting frame, and at the same time, the end of the electrical drive component drives the transmission side base to move laterally on the surface of the mounting frame.

[0011] Preferably, the cylinder and the mounting bracket are slidably connected, the second lifting mechanism is located at the bottom of the operating side base, and the first lifting mechanism is installed at the bottom of the transmission side base.

[0012] Using the above technical solution, when the lifting mechanism 2 drives the operating side base to move on the mounting frame, the operating side base drives the cylinder to move on the surface of the mounting frame, and the extension and retraction of the cylinder can drive the operating side base to move laterally on the surface of the mounting frame.

[0013] Preferably, the end surface of the rotating shaft is provided with a threaded surface, the inside of the sleeve is provided with a thread, and the rotating shaft and the sleeve are connected by a thread, and the rotating shaft and the cavity are rotatably connected.

[0014] Using the above technical solution, the rotating shaft can be driven when it rotates.

[0015] Preferably, the gear and the rack are meshing, the rack and the roller are sliding, the limiting rubber plate and the groove are sliding, and the roller and the limiting rubber plate are sliding.

[0016] Using the above technical solution, when the gear rotates, it drives the rack to move, causing the rack to move outward inside the roller shaft. The rack pushes the limiting rubber plate to move outward inside the groove, so that the end of the limiting rubber plate contacts the inner wall of the printing cylinder, thereby fixing the position of the printing cylinder.

[0017] Preferably, the two limiting rubber plates are arc-shaped, and the interior of the limiting rubber plates is in contact with the surface of the first groove. The first groove is located inside the second groove, and the second groove is close to both sides of the roller. The surface of the limiting rubber plates is provided with rubber strips.

[0018] By adopting the above technical solution, the end of the limiting rubber plate is made to fit against the inner wall of the plate cylinder, which can fix the plate cylinder. At the same time, the second airbag is set on the outside of the limiting rubber plate, which can block the two sides of the plate cylinder and prevent dust from entering the interior of the plate cylinder and causing damage to the plate cylinder and the limiting rubber plate.

[0019] Preferably, the end of the extrusion plate is connected to the surface of the first airbag, and the extrusion plate and the second cavity are slidably connected.

[0020] Using the above technical solution, the end of the extrusion plate will not move due to the restriction of the first airbag. At this time, the rotating shaft drives the rotating cylinder to push the extrusion plate, and the extrusion plate extrudes the first airbag.

[0021] Preferably, the surface of the first airbag is connected to a pipe, and the other end of the pipe of the first airbag passes through the surface of the roller and is connected to the second airbag.

[0022] Using the above technical solution, when airbag one is compressed, the gas inside airbag one enters the interior of airbag two through a pipe, causing airbag two to expand inside the groove.

[0023] Compared with the prior art, the beneficial effects of the present invention are: the telescopic mechanism on the operating side of the printing plate cylinder: 1. A moving mechanism is provided to facilitate the removal of the printing plate cylinder from the surface of the roller. Lifting mechanism one and lifting mechanism two drive the roller to move up and down. At the same time, the cylinder and electrical drive components drive the roller to separate from the operating side base. At this time, one side of the roller is unblocked, and the printing plate cylinder can be picked up and placed on the surface of the roller through this point, which improves the efficiency of printing plate cylinder replacement. 2. A rotating mechanism is provided to facilitate fixing the printing plate cylinder to the surface of the roller shaft. When the dual-head motor is started, it drives the limiting rubber plate to move outward through the transmission mechanism, so that the outer side of the limiting rubber plate fits against the inner wall of the printing plate cylinder, fixing the position of the printing plate cylinder. This ensures that the printing plate cylinder is evenly fixed to the surface of the roller shaft, making the printing plate cylinder and the roller shaft have the same center point, resulting in more uniform rotation of the printing plate cylinder and improving the accuracy of printing. 3. Two airbags are provided. When the rotating shaft rotates, the threads on the surface of the copper drum push the extrusion plate to squeeze the first airbag. The gas inside the first airbag enters the second airbag, causing the second airbag to expand. This can seal the gap between the plate cylinder and the roller shaft on both sides, preventing dust from entering between them and preventing wear between the plate cylinder and the roller shaft. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional mounting structure of the motor drive device of the present invention; Figure 3 This is a front view structural diagram of the present invention; Figure 4 This is a top view of the structure of the present invention; Figure 5 This is a three-dimensional structural diagram of the roller mounting of the present invention; Figure 6 This is a three-dimensional schematic diagram of the gear mounting structure of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the roller shaft of the present invention. Figure 8 This is a schematic diagram of the internal three-dimensional structure of the cavity of the present invention; Figure 9 This is a schematic diagram of the three-dimensional structure installed inside the cavity of the present invention; Figure 10 This is a schematic diagram of the three-dimensional structure for mounting the rotating shaft of the present invention.

[0025] In the diagram: 1. Roller; 2. Transmission side base; 3. Operation side base; 4. Lifting mechanism one; 5. Lifting mechanism two; 6. Electrical drive component; 7. Cylinder; 8. Motor drive device; 9. Dual-head motor; 10. Rotating shaft; 11. Cavity one; 12. Gear; 13. Rack; 14. Groove one; 15. Limiting rubber plate; 16. Cavity two; 17. Sleeve; 18. Extrusion plate; 19. Airbag one; 20. Groove two; 21. Airbag two; 22. Mounting bracket. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figure 1-10 The present invention provides a technical solution: a telescopic mechanism for the operating side of a printing cylinder, comprising a roller shaft 1, a transmission side base 2, an operating side base 3, a lifting mechanism one 4, a lifting mechanism two 5, an electrical drive component 6, a cylinder 7, a motor drive device 8, a dual-head motor 9, a rotating shaft 10, a cavity one 11, a gear 12, a rack 13, a groove one 14, a limiting rubber plate 15, a cavity two 16, a sleeve 17, an extrusion plate 18, an airbag one 19, a groove two 20, an airbag two 21, and a mounting and fixing frame 22; The telescopic mechanism on the operating side of the printing cylinder facilitates the replacement of the printing cylinder. The specific implementation method is as follows: The roller 1 is cylindrical, and a transmission-side base 2 is connected to one end of the roller 1. A moving mechanism is connected to the surface of the roller 1, and the moving mechanism includes: an operating-side base 3 connected to one end of the roller 1; a lifting mechanism 2 5 fixedly connected to the bottom of the operating-side base 3; a lifting mechanism 4 installed at the bottom of the transmission-side base 2; a motor drive device 8 fixedly connected to the end of the transmission-side base 2; an electrical drive component 6 connected to the surface of the motor drive device 8; a cylinder 7 connected to one side of the surface of the operating-side base 3; and a mounting bracket 22 connected to the other side of the cylinder 7. An electrical drive unit 6 is fixedly mounted on the surface of roller 1. The transmission side base 2 and the operation side base 3 are symmetrically arranged on both sides of roller 1. Both the transmission side base 2 and the operation side base 3 are connected to the surface of the mounting bracket 22 and are slidably connected to the mounting bracket 22. The electrical drive unit 6 is connected to the mounting bracket 22 and the output shaft of the electrical drive unit 6 is connected to the surface of the transmission side base 2. The cylinder 7 is slidably connected to the mounting bracket 22. The second lifting mechanism 5 is located at the bottom of the operation side base 3 and the first lifting mechanism 4 is installed at the bottom of the transmission side base 2.

[0028] When it is necessary to replace the printing plate on the surface of roller 1, start lifting mechanism 4 and lifting mechanism 5. Lifting mechanism 4 and lifting mechanism 5 will push the transmission side base 2 and the operating side base 3 upward respectively. At this time, the transmission side base 2 and the operating side base 3 will slide upward on the surface of the mounting bracket 22, and drive roller 1 upward. When roller 1 moves to the highest point pushed by lifting mechanism 4 and lifting mechanism 5, start the electrical drive component 6. The electrical drive component 6 will drive the transmission side base 2 to move outward on the surface of the mounting bracket 22. The transmission side base 2 will drive roller 1 to move outward. At the same time, start cylinder 7. The end of cylinder 7 will retract, and drive the operating side base 3 to move outward. At this time, the end of the operating side base 3 will lose contact with one end of roller 1, and the two will separate. Start lifting mechanism 5. Lifting mechanism 5 will drive the operating side base 3 downward to the lowest end, and move the operating side base 3 out from one side of roller 1. At this time, the printing plate on the surface of roller 1 can be replaced through the position of one side of the operating side base 3.

[0029] The telescopic mechanism on the operating side of the printing cylinder facilitates fixing the printing cylinder to the surface of the roller shaft. The specific implementation method is as follows: The roller 1 has a rotating mechanism inside, which includes: a double-headed motor 9 embedded inside the roller 1, with both outputs of the double-headed motor 9 fixedly connected to a rotating shaft 10; symmetrically embedded cavities 11 inside the roller 1, with gears 12 connected to the rotating shaft 10 inserted into cavity 11, gears 12 located inside cavity 11, and racks 13 symmetrically fixedly connected to the surface of gears 12; a groove 14 embedded in the surface of the roller 1, with a limiting rubber plate 15 connected inside groove 14, and the end of rack 13 penetrating the surface of roller 1 and connected to the limiting rubber plate 15; symmetrically embedded cavities 16 inside the roller 1, with airbags 19 connected to the inner wall of cavity 16; a sleeve 17 inserted into cavity 11 at the end of the rotating shaft 10, with the sleeve 17 located inside cavity 11, and a pressing plate 18 connected to the other end of sleeve 17; and a groove 20 embedded in the surface of the roller 1. An airbag 21 is embedded inside the 0. The end surface of the rotating shaft 10 is threaded. The sleeve 17 is threaded inside, and the rotating shaft 10 and sleeve 17 are threadedly connected. The rotating shaft 10 is rotatably connected to the cavity 11. The gear 12 and rack 13 are meshing, and the rack 13 is slidably connected to the roller 1. The limiting rubber plate 15 is slidably connected to the groove 14, and the roller 1 is slidably connected to the limiting rubber plate 15. There are two limiting rubber plates 15. The limiting rubber plate 15 is set in an arc shape, and the inside of the limiting rubber plate 15 is in contact with the surface of the first groove 14. The first groove 14 is set inside the second groove 20, and the second groove 20 is close to both sides of the roller 1. The surface of the limiting rubber plate 15 is provided with rubber strips. The end of the extrusion plate 18 is connected to the surface of the first airbag 19, and the extrusion plate 18 is slidably connected to the second cavity 16. The surface of the first airbag 19 is connected with a pipe, and the other end of the pipe of the first airbag 19 passes through the surface of the roller 1 and is connected to the second airbag 21.

[0030] After the printing plate cylinder is completely fitted onto the surface of the roller shaft 1, the dual-head motor 9 is started. The output shaft of the dual-head motor 9 drives the rotating shafts 10 on both sides to rotate, causing the rotating shafts 10 to rotate inside the roller shaft 1. At this time, the rotating shafts 10 drive the gears 12 on the surface to rotate, and the gears 12 drive the racks 13 on the surface to move. At this time, the racks 13 move outward inside the roller shaft 1, and the racks 13 drive the limiting rubber plate 15 to move outward, causing the limiting rubber plate 15 to move outward inside the groove 14, so that the limiting rubber plate 15 moves outward from the groove 14. At this time, the end of the limiting rubber plate 15 is in contact with the inner wall of the printing plate cylinder. At this time, when the rotating shaft 10 rotates, since the airbag 19 is fixedly connected to the extrusion plate 18, the sleeve 17 moves to both sides along the internal thread of the rotating shaft 10. The sleeve 17 pushes the extrusion plate 18 to both sides, causing the extrusion plate 18 to slide inside the cavity 16. The extrusion plate 18 extrudes the airbag 19. 19. At this time, airbag 19 contracts, and the gas inside airbag 19 enters the pipe and then enters the interior of airbag 21, causing airbag 21 to expand inside groove 20. At this time, the end of airbag 21 extends outward, so that the surface of airbag 21 is in contact with the inner wall of the printing cylinder. At this time, airbag 21 seals the gap between the printing cylinder and roller 1, blocking the gap between the printing cylinder and roller 1, preventing dust from entering between the printing cylinder and roller 1, preventing the limiting rubber plate 15 from causing wear on the printing cylinder, and at the same time, it can reduce shock between the printing cylinder and roller 1. When the outer surfaces of the limiting rubber plates 15 on both sides are in contact with the interior of the printing cylinder, the dual-head motor 9 can be stopped, the rotating shaft 10 can be stopped, the gear 12 can be positioned and fixed, and the position of the limiting rubber plate 15 can be fixed. At this time, the printing cylinder can be fixed on the surface of roller 1.

[0031] Working principle: When using the telescopic mechanism on the operating side of the printing plate cylinder, a transmission side base 2, an operating side base 3, a lifting mechanism one 4, a lifting mechanism two 5, an electrical drive component 6, and a cylinder 7 are provided to facilitate the replacement of the printing plate cylinder. A gear 12, a rack 13, a groove one 14, and a limiting rubber plate 15 are provided to facilitate the fixing of the printing plate cylinder to the surface of the roller shaft, increasing the overall practicality.

[0032] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A telescopic mechanism for the operating side of a printing cylinder, comprising a roller (1) configured as a cylindrical structure, and a transmission side base (2) connected to one end of the roller (1). Its features are: The roller (1) is connected to a moving mechanism, which includes: an operating side base (3) connected to one end of the roller (1), a lifting mechanism (5) fixedly connected to the bottom of the operating side base (3), a lifting mechanism (4) installed at the bottom of the transmission side base (2), a motor drive device (8) fixedly connected to the end of the transmission side base (2), an electrical drive component (6) connected to the surface of the motor drive device (8), a cylinder (7) connected to one side of the surface of the operating side base (3), a mounting bracket (22) connected to the other side of the cylinder (7), and an electrical drive component (6) fixedly installed on the surface of the mounting bracket (22); the roller (1) is provided with a rotating mechanism, which includes: a double-head motor (9) embedded inside the roller (1), and two outputs of the double-head motor (9) fixedly connected to a rotating shaft (10); and a cavity (10) symmetrically embedded inside the roller (1). 1), and a gear (12) is connected inside the insertion cavity (11) of the rotating shaft (10). The gear (12) is located inside the cavity (11), and a rack (13) is symmetrically fixedly connected to the surface of the gear (12). A groove (14) is embedded in the surface of the roller shaft (1), and a limiting rubber plate (15) is connected inside the groove (14). The end of the rack (13) passes through the surface of the roller shaft (1) and is connected to the limiting rubber plate (15). The inner symmetrical cavity is embedded in the cavity, and the inner wall of the cavity is connected to the airbag (19). The end of the rotating shaft (10) is inserted into the cavity (11) and connected to the sleeve (17). The sleeve (17) is located inside the cavity (11), and the other end of the sleeve (17) is connected to the extrusion plate (18). The surface of the roller (1) is embedded in the groove (20), and the inside of the groove (20) is embedded in the airbag (21). The end surface of the rotating shaft (10) is provided with a threaded surface, the sleeve (17) is provided with a thread, and the rotating shaft (10) and the sleeve (17) are connected by a thread. The rotating shaft (10) and the cavity (11) are rotatably connected. The gear (12) and the rack (13) are meshed, and the rack (13) and the roller (1) are slidably connected. The limiting rubber plate (15) and the groove (14) are slidably connected, and the roller (1) and the limiting rubber plate (15) are slidably connected. The end of the extrusion plate (18) is connected to the surface of the first airbag (19), and the extrusion plate (18) and the second cavity (16) are slidably connected. The surface of the first airbag (19) is connected to a pipe, and the other end of the pipe of the first airbag (19) passes through the surface of the roller (1) and is connected to the second airbag (21).

2. The telescopic mechanism for the operating side of the printing plate cylinder according to claim 1, characterized in that: The transmission side base (2) and the operation side base (3) are symmetrically arranged on both sides of the roller (1), and both the transmission side base (2) and the operation side base (3) are connected to the surface of the mounting bracket (22), and both the transmission side base (2) and the operation side base (3) are slidably connected to the mounting bracket (22).

3. The telescopic mechanism for the operating side of the printing plate cylinder according to claim 1, characterized in that: The electrical drive unit (6) is connected to the mounting bracket (22), and the output shaft of the electrical drive unit (6) is connected to the surface of the transmission side base (2).

4. The telescopic mechanism for the operating side of the printing plate cylinder according to claim 1, characterized in that: The cylinder (7) is slidably connected to the mounting bracket (22), the second lifting mechanism (5) is located at the bottom of the operating side base (3), and the first lifting mechanism (4) is installed at the bottom of the transmission side base (2).

5. The telescopic mechanism for the operating side of the printing plate cylinder according to claim 1, characterized in that: The two limiting rubber plates (15) are set in an arc shape, and the interior of the limiting rubber plate (15) is in contact with the surface of the first groove (14). The first groove (14) is set inside the second groove (20), and the second groove (20) is close to both sides of the roller (1). The surface of the limiting rubber plate (15) is provided with rubber strips.

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