A printing plate for a printing machine which facilitates replacement of a printing roller

Abstract

The utility model discloses a printing board for printing machine convenient to replace printing roller relates to printing machine technical field, including base and printing board body, be equipped with the mounting groove on the base, be equipped with the lifting assembly in the mounting groove, and the lifting assembly is connected with the locating plate to make the locating plate close or be far from printing roller, be equipped with the locating groove that coincides with the printing board body structure size on the locating plate, and the printing board body is installed in the locating groove, and the locating groove bottom is equipped with a plurality of through air hole, and the air hole is connected with negative pressure component to carry out adsorption fixed printing board body. The utility model realizes the adjustment between printing board body and printing roller distance, has made things convenient for the replacement of printing roller, and it is convenient to dismouting printing board body, effectively solved the problem that the existing printing board exists when printing roller maintenance, has better use effect.

Description

Technical Field

[0001] This utility model relates to the field of printing press technology, and more specifically, to a printing plate for a printing press that facilitates the replacement of printing rollers. Background Technology

[0002] When printing patterns, the printing press attaches a printing plate to the substrate, and then the printing roller contacts the printing plate. After printing, the ink comes into contact with the substrate to form a pattern.

[0003] However, in use, most printing plates are directly fixed to the printing press base, leaving a small gap between them and the printing rollers. This means that when the printing rollers require maintenance, although the bearing housing can be removed directly, the rollers are prone to contact with the printing plate during removal, exerting direct pressure and causing damage. Furthermore, the printing plates are not easy to disassemble or assemble. Therefore, the disassembly and assembly of the printing rollers requires extreme caution, making the process relatively cumbersome. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art and to propose a printing plate for a printing machine that facilitates the replacement of printing rollers.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A printing plate for a printing press that facilitates the replacement of printing rollers includes a base and a printing plate body. The base is provided with a mounting groove, and a lifting component is provided in the mounting groove. The lifting component is connected to a positioning plate to move the positioning plate closer to or further away from the printing roller. The positioning plate is provided with a positioning groove that matches the structural dimensions of the printing plate body. The printing plate body is installed in the positioning groove, and the bottom of the positioning groove is provided with several through-holes. The air holes are connected to a negative pressure component to adsorb and fix the printing plate body.

[0007] Furthermore, the lifting assembly includes a mounting plate whose length and width are adapted to the length and width of the mounting groove. An electromagnetic plate connected to the mounting groove is provided at the bottom of the mounting plate, and a telescopic cylinder connected to the positioning plate is vertically provided at the top of the mounting plate.

[0008] Furthermore, the negative pressure assembly includes a negative pressure pump, which is mounted on a mounting plate and connected to an air box via a hose. The top of the air box is open and sealed at the bottom of the positioning plate and connected to an air vent.

[0009] Furthermore, the positioning plate has a groove at its bottom, and a fixing component connected to the telescopic cylinder is installed in the groove.

[0010] Furthermore, the fixing component includes an electromagnetic block, which is fixedly connected to the telescopic cylinder, and the electromagnetic block magnetically attracts a metal block, which is fixedly disposed in the groove.

[0011] Furthermore, the total thickness of the electromagnetic block and the metal block is less than the depth of the groove, so that the fixed position of the positioning plate can be quickly aligned.

[0012] Furthermore, the positioning plate has multiple through holes at its bottom, and the mounting plate has ejection components that correspond to and cooperate with the through holes. When the positioning plate moves down, the ejection components extend into the positioning groove through the through holes.

[0013] Furthermore, the ejection assembly includes a vertical rod, which is mounted on the mounting plate and located below the positioning plate. A pressure seat is slidably fitted on the vertical rod, and the pressure seat is connected to the mounting plate by a spring, with the spring sleeved outside the vertical rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention uses a lifting assembly to adjust the distance between the printing plate and the printing roller, facilitating the replacement of the printing roller. The positioning plate and positioning groove enable precise positioning and support of the printing plate. Furthermore, the air holes and negative pressure assembly are used to adsorb and fix the printing plate, making it easy to disassemble and assemble the printing plate. This effectively solves the problems existing in the maintenance of printing rollers for existing printing plates, making the disassembly and assembly of printing rollers more convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram showing the installation location of the fixed components;

[0018] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0019] Figure 4 This is a schematic diagram showing the installation location of the ejector component;

[0020] The components include: 1. Base; 11. Mounting slot; 2. Printed circuit board; 3. Lifting assembly; 31. Mounting plate; 32. Electromagnetic plate; 33. Telescopic cylinder; 4. Positioning plate; 41. Positioning slot; 42. Air hole; 43. Groove; 44. Through hole; 5. Negative pressure assembly; 51. Negative pressure pump; 52. Hose; 53. Air box; 6. Fixing assembly; 61. Electromagnetic block; 62. Metal block; 7. Ejection assembly; 71. Vertical rod; 72. Pressure bearing seat; 73. Spring. Detailed Implementation

[0021] 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 a part of the embodiments of the present utility model, and not all of them. 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. The present utility model will be further described with reference to the accompanying drawings and embodiments:

[0022] A printing plate for a printing press that facilitates the replacement of printing rollers, see attached figure. Figure 1 As shown, it includes a base 1 and a printing plate 2. The base 1 is provided with a mounting groove 11, and a lifting component 3 is provided in the mounting groove 11. The lifting component 3 is connected to a positioning plate 4 so that the positioning plate 4 is close to or away from the printing roller. The positioning plate 4 is provided with a positioning groove 41 that matches the structural dimensions of the printing plate 2. The printing plate 2 is installed in the positioning groove 41, and the bottom of the positioning groove 41 is provided with several through air holes 42. The air holes 42 are connected to a negative pressure component 5 to adsorb and fix the printing plate 2.

[0023] In the specific implementation of this utility model, during printing, the negative pressure component 5 is activated, and the printing plate 2 is placed into the positioning groove 41 of the positioning plate 4. The negative pressure generated by the air hole 42 is used to adsorb and fix the printing plate 2. Then, the position of the positioning plate 4 is adjusted by the lifting component 3 so that the printing plate 2 rises to a suitable height and cooperates with the printing roller to print patterns. The ink comes into contact with the printed object through the printing plate 2 to form a pattern. When the printing roller needs maintenance, the lifting component 3 is activated to lower the positioning plate 4 along with the printing plate 2, leaving enough space between the printing plate 2 and the printing roller, so that the printing roller can be safely removed for maintenance. When the printing plate 2 needs to be disassembled, the negative pressure component 5 is turned off to release the adsorption on the printing plate 2, and the printing plate 2 is removed from the positioning groove 41 for maintenance or replacement.

[0024] Specifically, regarding the structure of the lifting component 3, please refer to the appendix. Figure 1 As shown, the lifting assembly 3 includes a mounting plate 31, the length and width of which are adapted to the length and width of the mounting groove 11. An electromagnetic plate 32 connected to the mounting groove 11 is provided at the bottom of the mounting plate 31, and a telescopic cylinder 33 connected to the positioning plate 4 is vertically provided at the top of the mounting plate 31.

[0025] The mounting plate 31 can be stably placed in the mounting slot 11, providing a stable foundation support for the entire lifting assembly 3. By controlling the energization and de-energization of the electromagnetic plate 32, the connection and separation of the mounting plate 31 and the mounting slot 11 can be easily realized (for example, when maintenance or adjustment of the lifting assembly 3 is required, the power supply of the electromagnetic plate 32 can be disconnected, and the mounting plate 31 can be easily removed from the mounting slot 11). When printing is required, the telescopic cylinder 33 is controlled to raise the positioning plate 4 together with the printing plate 2. Conversely, when disassembly is required, the telescopic cylinder 33 is controlled to lower the positioning plate 4 together with the printing plate 2, thus meeting the needs of adjusting the position of the printing plate 2 in different scenarios.

[0026] Specifically, regarding the structure of the negative pressure component 5, please refer to the appendix. Figure 1 As shown, the negative pressure assembly 5 includes a negative pressure pump 51, which is mounted on the mounting plate 31 and is connected to an air box 53 via a hose 52. The air box 53 is open at the top and sealed at the bottom of the positioning plate 4, and is connected to an air hole 42.

[0027] When the negative pressure pump 51 is working, the air in the air box 53 is extracted, the air pressure decreases, and the air in the positioning groove 41 is also extracted through the air hole 42. Under the action of atmospheric pressure, the printed circuit board 2 is tightly adsorbed in the positioning groove 41, thus fixing the printed circuit board 2. When it is necessary to remove the printed circuit board 2, the negative pressure pump 51 is turned off, and the air pressure in the air box 53 gradually returns to the same as the external atmospheric pressure. The adsorption force on the printed circuit board 2 disappears, and the printed circuit board 2 can be easily removed from the positioning groove 41.

[0028] In the above solution, considering the ease of disassembling and assembling the positioning plate 4, the following is provided: Figure 2 and attached Figure 3 As shown, the bottom of the positioning plate 4 is provided with a groove 43, and a fixing component 6 connected to the telescopic cylinder 33 is provided in the groove 43; specifically, the fixing component 6 includes an electromagnetic block 61, which is fixedly connected to the telescopic cylinder 33. In cooperation with it, the electromagnetic block 61 magnetically attracts a metal block 62, which is fixedly set in the groove 43.

[0029] When the electromagnetic block 61 is energized and generates a magnetic field, it magnetically attracts the metal block 62, thereby firmly connecting the positioning plate 4 and the telescopic cylinder 33 together. In this way, the telescopic movement of the telescopic cylinder 33 can be transmitted to the positioning plate 4 through the connection between the electromagnetic block 61 and the metal block 62, realizing the raising and lowering of the positioning plate 4. The metal block 62 is fixed in the groove 43, ensuring its positional stability and making the adsorption connection between the electromagnetic block 61 and the metal block 62 reliable. When the electromagnetic block 61 is de-energized, the metal plate is no longer magnetically attracted to the electromagnetic block 61. At this time, the positioning plate 4 can be easily removed.

[0030] In addition, the total thickness of the electromagnetic block 61 and the metal block 62 is less than the depth of the groove 43. When the electromagnetic block 61 and the metal block 62 are attracted and connected, since the total thickness is less than the depth of the groove 43, they will not exceed the range of the groove 43 and will still be protected by the groove 43, avoiding external collisions or damage. At the same time, it can play a convenient positioning role in the installation process of the positioning plate 4 and can quickly align the fixed position of the positioning plate 4.

[0031] In the above solution, considering that the printed circuit board 2 can be removed from the positioning slot 41 more conveniently, the following is provided: Figure 4 As shown, the bottom of the positioning plate 4 is provided with multiple through holes 44, and the mounting plate 31 is provided with ejector components 7 that correspond to and cooperate with the through holes 44. When the positioning plate 4 moves down, the ejector components 7 extend into the positioning groove 41 through the through holes 44. Specifically, the ejector components 7 include a vertical rod 71, which is disposed on the mounting plate 31 and located below the positioning plate 4. A pressure seat 72 is slidably fitted on the vertical rod 71. The pressure seat 72 is connected to the mounting plate 31 by a spring 73, and the spring 73 is sleeved on the outside of the vertical rod 71.

[0032] When the positioning plate 4 descends, it will press the pressure seat 72, and the spring 73 will be compressed to buffer it. As the positioning plate 4 moves down, the vertical rod 71 will extend through the through hole 44 into the positioning groove 41, and then push the printing plate 2 out of the positioning groove 41. At this time, it is convenient for personnel to remove the printing plate 2.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A printing plate for a printing press that facilitates the replacement of printing rollers, comprising a base (1) and a printing plate body (2), characterized in that: The base (1) is provided with an installation groove (11), and the installation groove (11) is provided with a lifting component (3). The lifting component (3) is connected to a positioning plate (4) so ​​that the positioning plate (4) is close to or away from the printing roller. The positioning plate (4) is provided with a positioning groove (41) that matches the structural dimensions of the printing plate body (2). The printing plate body (2) is installed in the positioning groove (41), and the bottom of the positioning groove (41) is provided with several through air holes (42). The air holes (42) are connected to a negative pressure component (5) to adsorb and fix the printing plate body (2).

2. A printing plate for a printing press that facilitates the replacement of printing rollers, as described in claim 1, characterized in that: The lifting assembly (3) includes a mounting plate (31), the length and width of which are adapted to the length and width of the mounting groove (11), an electromagnetic plate (32) connected to the mounting groove (11) is provided at the bottom of the mounting plate (31), and a telescopic cylinder (33) connected to the positioning plate (4) is vertically provided at the top of the mounting plate (31).

3. A printing plate for a printing press that facilitates the replacement of printing rollers, as described in claim 2, characterized in that: The negative pressure assembly (5) includes a negative pressure pump (51), which is mounted on the mounting plate (31) and is connected to an air box (53) via a hose (52). The top of the air box (53) is open and sealed at the bottom of the positioning plate (4) and is connected to an air hole (42).

4. A printing plate for a printing press that facilitates the replacement of printing rollers, as described in claim 3, characterized in that: The bottom of the positioning plate (4) is provided with a groove (43), and a fixing component (6) connected to the telescopic cylinder (33) is provided in the groove (43).

5. A printing plate for a printing press that facilitates the replacement of printing rollers, as described in claim 4, characterized in that: The fixing component (6) includes an electromagnetic block (61), which is fixedly connected to the telescopic cylinder (33), and the electromagnetic block (61) magnetically attracts a metal block (62), which is fixedly disposed in the groove (43).

6. A printing plate for a printing press that facilitates the replacement of printing rollers, as described in claim 5, characterized in that: The total thickness of the electromagnetic block (61) and the metal block (62) is less than the depth of the groove (43).

7. A printing plate for a printing press that facilitates the replacement of printing rollers, as described in claim 6, characterized in that: The bottom of the positioning plate (4) is provided with multiple through holes (44), and the mounting plate (31) is provided with an ejector assembly (7) that corresponds to and cooperates with the through holes (44). When the positioning plate (4) moves down, the ejector assembly (7) extends into the positioning groove (41) through the through holes (44).

8. A printing plate for a printing press that facilitates the replacement of printing rollers, as described in claim 7, characterized in that: The ejection assembly (7) comprises a vertical rod (71) arranged on the mounting plate (31) and below the positioning plate (4), and a pressure bearing seat (72) is slidingly fitted on the vertical rod (71), the pressure bearing seat (72) is connected with the mounting plate (31) through a spring (73), and the spring (73) is sleeved outside the vertical rod (71).

Images