Printing roller for printing machine

Abstract

The utility model discloses a printing roller for a printing machine, which comprises a mounting roller, two ends of the mounting roller are fixedly connected with connecting shafts, printing plate mechanisms for printing are arranged at the top and the bottom of the mounting roller, and locking mechanisms for fixing and locking the two printing plate mechanisms are arranged outside the connecting shafts. The outer portion of the locking mechanism is fixedly connected with a protection mechanism making contact with one side of the outer portion of the printing plate mechanism. The mounting roller and the connecting shaft can drive the whole device to rotate through an external device, and then a printing plate mechanism with printing patterns is mounted outside the mounting roller in an attached manner, so that a proper printing plate mechanism can be selected according to the required patterns; the printing plate mechanism can be fixedly installed outside the installation roller through the locking mechanism arranged subsequently, the protection mechanism is arranged at the end of the printing plate mechanism, and printing ink can be prevented from leaking out of the two ends of the printing plate mechanism through the arrangement.

Description

Technical Field

[0001] This utility model relates to the field of printing press technology, specifically to a printing roller for a printing press. Background Technology

[0002] A printing press is a mechanical device used to reproduce text and images onto paper or other materials. Depending on the technology and application, printing presses can be classified into various types, such as gravure printing presses, offset printing presses, and flexographic printing presses, each with its specific uses and advantages.

[0003] Printing rollers are used in printing presses, and different printing plates are usually used for printing. Traditional printing rollers need to be completely removed before use, and their size and weight are relatively large, making replacement inconvenient. Therefore, we propose a printing roller for printing presses. Utility Model Content

[0004] The purpose of this invention is to provide a printing roller for a printing press to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a printing roller for a printing press, including an installation roller, with connecting shafts fixedly connected to both ends of the installation roller, and printing plate mechanisms for printing provided at the top and bottom of the installation roller, with sealing gaskets made of rubber material fixedly connected to the opposite sides of the two sets of printing plate mechanisms, and a locking mechanism for fixing and locking the two sets of printing plate mechanisms is provided outside the connecting shaft, and a protective mechanism that contacts the outer side of the printing plate mechanism is fixedly connected outside the locking mechanism.

[0006] Furthermore, the printing plate mechanism includes a first positioning groove, a printing plate body, and a positioning block. Multiple sets of first positioning grooves are formed on the outside of the mounting roller. The printing plate body is fixedly connected to a positioning block inserted into the first positioning groove. The inner wall of the printing plate body is in contact with the outside of the mounting roller.

[0007] Furthermore, the locking mechanism includes a locking semi-threaded sleeve, a positioning post, a second positioning groove, a connecting piece, a threaded sleeve, and a rotating seat. The locking semi-threaded sleeve is fixedly connected to the end of the printed plate body. The second positioning groove is opened through the connecting shaft. The positioning post inserted into the second positioning groove is fixedly connected to the inner wall of the locking semi-threaded sleeve. The connecting piece is sleeved on the outside of the connecting shaft. A threaded sleeve that is threadedly connected to the locking semi-threaded sleeve is fixedly connected to one side of the connecting piece. A rotating seat is fixedly connected to the other side of the connecting piece.

[0008] Furthermore, the protective mechanism includes a protective sleeve, a first chamfer, and a rubber pad. The protective sleeve is fixedly connected to the outside of the connecting piece. An inclined first chamfer is provided on one side of the inner wall of the protective sleeve, and a rubber pad is laid inside the protective sleeve.

[0009] Furthermore, the top of the positioning post is provided with a second chamfered angle that is inclined.

[0010] Furthermore, the mounting roller, connecting shaft, printing plate body, locking semi-threaded sleeve, rotating seat, and protective sleeve are all made of stainless steel.

[0011] Compared with the prior art, the present invention has the following advantages: the mounting roller and connecting shaft of the present invention can drive the entire device to rotate through an external device. The printing plate mechanism with the printed pattern is then fitted and installed on the outside of the mounting roller. This allows the appropriate printing plate mechanism to be selected according to the required pattern. The locking mechanism can then fix the printing plate mechanism on the outside of the mounting roller. The protective mechanism is set at the end of the printing plate mechanism. This design can prevent printing ink from leaking out through both ends of the printing plate mechanism. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0013] Figure 2 This is a three-dimensional view of the mounting roller and a schematic diagram of the mounting structure of this utility model.

[0014] Figure 3 This is a three-dimensional structural diagram of the printing plate mechanism of this utility model;

[0015] Figure 4 This is a first perspective view of the locking mechanism and protection mechanism of this utility model, showing the installation structure.

[0016] Figure 5 This is a second perspective view of the installation structure of the locking mechanism and protection mechanism of this utility model.

[0017] In the diagram: 1. Mounting roller; 2. Connecting shaft; 3. Printing plate mechanism; 4. Sealing gasket; 5. Locking mechanism; 6. Protective mechanism; 7. First positioning groove; 8. Printing plate body; 9. Positioning block; 10. Locking semi-threaded sleeve; 11. Positioning post; 12. Second positioning groove; 13. Connecting piece; 14. Threaded sleeve; 15. Rotating seat; 16. Protective sleeve; 17. First clearance chamfer; 18. Rubber pad; 19. Second clearance chamfer. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-5 This utility model provides a technical solution: a printing roller for a printing press, including a mounting roller 1, with connecting shafts 2 fixedly connected to both ends of the mounting roller 1, and printing plate mechanisms 3 for printing provided at the top and bottom of the mounting roller 1, with sealing gaskets 4 made of rubber material fixedly connected to the opposite sides of the two sets of printing plate mechanisms 3, and a locking mechanism 5 for fixing and locking the two sets of printing plate mechanisms 3 provided outside the connecting shaft 2, and a protective mechanism 6 that contacts the outer side of the printing plate mechanism 3 fixedly connected outside the locking mechanism 5.

[0020] The mounting roller 2 and connecting shaft 1 can be driven to rotate the entire device by an external device. The printing plate mechanism 3 with the printed pattern is then fitted and installed on the outside of the mounting roller 1. The two sets of printing plate mechanisms 3 are protected by a sealing gasket 4 to prevent printing ink from entering between the two sets of printing plate mechanisms 3. This allows the appropriate printing plate mechanism 3 to be selected according to the required pattern. The locking mechanism 5 can then fix the printing plate mechanism 3 to the outside of the mounting roller 1. The protective mechanism 6 is set at the end of the printing plate mechanism 3 to prevent printing ink from leaking out through both ends of the printing plate mechanism 3.

[0021] Please see Figure 1 , Figure 2 and Figure 3 The printing plate mechanism 3 includes a first positioning groove 7, a printing plate body 8, and a positioning block 9. Multiple sets of first positioning grooves 7 are opened on the outside of the mounting roller 1. The positioning block 9, which is inserted into the first positioning groove 7, is fixedly connected inside the printing plate body 8. The inner wall of the printing plate body 8 is in contact with the outside of the mounting roller 1.

[0022] During the installation of the printing plate mechanism 3, the positioning block 9 inside the printing plate body 8 is inserted into the first positioning groove 7, and the printing plate body 8 is brought into contact with the outside of the mounting roller 1. This allows the printing plate body 8 to rotate and print synchronously when the mounting roller 1 rotates.

[0023] Please see Figures 1-5The locking mechanism 5 includes a locking semi-threaded sleeve 10, a positioning post 11, a second positioning groove 12, a connecting piece 13, a threaded sleeve 14, and a rotating seat 15. The locking semi-threaded sleeve 10 is fixedly connected to the end of the printed version body 8. The second positioning groove 12 is opened through the connecting shaft 2. The positioning post 11, which is inserted into the second positioning groove 12, is fixedly connected to the inner wall of the locking semi-threaded sleeve 10. The connecting piece 13 is sleeved on the outside of the connecting shaft 2. The threaded sleeve 14, which is threaded to the outside of the locking semi-threaded sleeve 10, is fixedly connected to one side of the connecting piece 13. The rotating seat 15 is fixedly connected to the other side of the connecting piece 13.

[0024] When it is necessary to fix the printing plate mechanism 3, the positioning pin 11 on the inner wall of the locking semi-threaded sleeve 10 can be inserted into the second positioning groove 12, thus completing the positioning of the locking semi-threaded sleeve 10. Then, the connecting piece 13, the rotating seat 15 and the threaded sleeve 14 are sleeved on the outside of the connecting shaft 2. Then, rotating the rotating seat 15 can lock the threaded sleeve 14 and the locking semi-threaded sleeve 10, thus making the two sets of printing plate bodies 8 fit and fix to the outside of the mounting roller 1.

[0025] Please see Figures 1-5 The protective mechanism 6 includes a protective sleeve 16, a first clearance chamfer 17, and a rubber pad 18. The protective sleeve 16 is fixedly connected to the outside of the connecting piece 13. The first clearance chamfer 17 is inclinedly provided on one side of the inner wall of the protective sleeve 16. The rubber pad 18 is laid inside the protective sleeve 16.

[0026] When the locking mechanism 5 is rotated and installed, the first clearance chamfer 17 can facilitate the installation of the sleeve 16 on the outside of the printing plate body 8, and the rubber pad 18 can be used to seal both ends of the printing plate body 8 to prevent printing ink from leaking out through both ends of the printing plate body 8.

[0027] Please see Figure 1 , Figure 2 and Figure 3 The top of the positioning post 11 is provided with an inclined annular second clearance chamfer 19, which facilitates the insertion of the positioning post 11 into the second positioning groove 12.

[0028] Please see Figures 1-5 The mounting roller 1, connecting shaft 2, printing plate body 8, locking semi-threaded sleeve 10, rotating seat 15 and protective sleeve 16 are all made of stainless steel. The stainless steel components can prevent the parts from contaminating the printing ink and the printed material during use.

[0029] In use, firstly, the mounting roller 2 and connecting shaft 1 can be driven to rotate the entire device via an external device. Then, the printing plate mechanism 3 with the printed pattern is fitted onto the outside of the mounting roller 1, and the two sets of printing plate mechanisms 3 are protected by a sealing gasket 4 to prevent printing ink from entering between them. This allows for the selection of a suitable printing plate mechanism 3 according to the desired pattern. The locking mechanism 5 then secures the printing plate mechanism 3 to the outside of the mounting roller 1, while the protective mechanism 6 is located at the ends of the printing plate mechanism 3 to prevent printing ink from leaking out through both ends. During installation, the positioning block 9 inside the printing plate body 8 is inserted into the first positioning groove 7, and the printing plate body 8 is brought into contact with the outside of the mounting roller 1. This ensures proper installation. When the mounting roller 1 rotates, it can synchronously drive the printing plate body 8 to rotate for printing. When it is necessary to fix the printing plate mechanism 3, the positioning pin 11 on the inner wall of the locking half threaded sleeve 10 can be inserted into the second positioning groove 12, thus completing the positioning of the locking half threaded sleeve 10. Then, the connecting piece 13, the rotating seat 15 and the threaded sleeve 14 are sleeved on the outside of the connecting shaft 2. Then, rotating the rotating seat 15 can lock the threaded sleeve 14 and the locking half threaded sleeve 10, thus making the two sets of printing plate bodies 8 fit and fix to the outside of the mounting roller 1. When the locking mechanism 5 is rotated and installed, the first clearance chamfer 17 can easily protect the sleeve 16 installed on the outside of the printing plate body 8, and the rubber gasket 18 can be used to seal the two ends of the printing plate body 8 to prevent printing ink from leaking out through the two ends of the printing plate body 8.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A printing roller for a printing machine, comprising a mounting roller (1), a connecting shaft (2) is fixedly connected to both ends of the mounting roller (1), characterized in that: The top and bottom of the installation roller (1) are provided with printing plate mechanisms (3) for printing, the opposite sides of the two groups of printing plate mechanisms (3) are fixedly connected with sealing pads (4) made of rubber material, the outer part of the connecting shaft (2) is provided with locking mechanisms (5) for fixing and locking the two groups of printing plate mechanisms (3), and the outer part of the locking mechanisms (5) is fixedly connected with protection mechanisms (6) in contact with the outer part of the printing plate mechanisms (3).

2. A printing roller for a printing press according to claim 1, characterized in that: The printing plate mechanism (3) comprises a first positioning groove (7), a printing version body (8) and a positioning block (9), a plurality of first positioning grooves (7) are formed in the outer part of the installation roller (1), the positioning block (9) is fixedly connected in the inner part of the first positioning groove (7), and the inner wall of the printing version body (8) is in contact with the outer part of the installation roller (1).

3. A printing roller for a printing press according to claim 2, characterized in that: The locking mechanism (5) comprises a locking half-thread sleeve (10), a positioning column (11), a second positioning groove (12), a connecting piece (13), a threaded sleeve (14) and a rotating seat (15), the end of the printing version body (8) is fixedly connected with the locking half-thread sleeve (10), the connecting shaft (2) is provided with the second positioning groove (12) penetratingly formed therein, the inner wall of the locking half-thread sleeve (10) is fixedly connected with the positioning column (11) inserted into the inner part of the second positioning groove (12), the outer part of the connecting shaft (2) is sleeved with the connecting piece (13), one side of the connecting piece (13) is fixedly connected with the threaded sleeve (14) threadedly connected with the outer part of the locking half-thread sleeve (10), and the other side of the connecting piece (13) is fixedly connected with the rotating seat (15).

4. A printing roller for a printing press according to claim 3, characterized in that: The protection mechanism (6) comprises a protection sleeve (16), a first avoiding chamfer (17) and a rubber pad (18), the outer part of the connecting piece (13) is fixedly connected with the protection sleeve (16), one side of the inner wall of the protection sleeve (16) is provided with the first avoiding chamfer (17) obliquely arranged, and the inner part of the protection sleeve (16) is paved with the rubber pad (18).

5. A printing roller for a printing press according to claim 4, characterized in that: The top of the positioning column (11) is provided with the second avoiding chamfer (19) obliquely arranged.

6. A printing roller for a printing press according to claim 4, characterized in that: The manufacturing materials of the installation roller (1), the connecting shaft (2), the printing version body (8), the locking half-thread sleeve (10), the rotating seat (15) and the protection sleeve (16) are stainless steel materials.

Images