Printing roller of printing machine

Abstract

The utility model belongs to the technical field of printing machine accessories, and particularly relates to a printing roller of a printing machine, which comprises two groups of supports, bearings are mounted on the two groups of supports, one group of bearings is rotatably connected with a first rotary drum, and the other group of bearings is rotatably connected with a second rotary drum. The first rotary drum and the second rotary drum are arranged on the base, a fixing assembly is arranged between the first rotary drum and the second rotary drum, and the first rotary drum is sleeved with a glazing drum. The quick-release assembly is arranged between the left end of the glazing drum and the left end of the first rotary drum, so that the glazing drum can be quickly detached from the first rotary drum and the second rotary drum through the quick-release assembly and replaced with a new rubber drum for continuous production; and a water cooling assembly is installed between the interiors of the first rotary drum and the second rotary drum, a fan is arranged on the right side of the interior of the second rotary drum, heat dissipation is conducted on the interior of the printing roller through the water cooling assembly and the fan, and it is avoided that surface glazing of the glazing drum is accelerated due to too high heat.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machine accessories, in particular to a printing roller of a printing machine. Background Art

[0002] During the cigarette box printing process, an offset printing press is required to print the designs onto the boxes. The printing roller is one of the components of the offset printing press. Multiple printing rollers often work together in a single printing press, with some responsible for delivering ink for printing and others for paper transport. Therefore, the printing roller is an essential component of a printing press, and its performance directly affects print quality.

[0003] In the prior art, when the printing roller of a printing machine is in use, foreign matter may remain on the rubber sleeve of the printing roller surface during the printing process. Since heat is generated during the printing process, if the remaining foreign matter is not cleaned in time, the rubber sleeve of the printing roller surface may become glazed under the action of heat, making the printing roller unusable. The printing roller needs to be replaced and sent back to the manufacturer to peel off the glazed sleeve, which reduces production efficiency. In order to facilitate the rapid disassembly and replacement of the glazed sleeve, improve production efficiency, and delay the glazing time, we propose a printing roller for a printing machine. Utility Model Content

[0004] In response to the deficiencies in the prior art, the utility model provides a printing roller for a printing machine. A quick-release assembly is installed between the glazing cylinder and the left end of the first rotating cylinder. The glazing cylinder can be quickly removed from the first rotating cylinder and the second rotating cylinder through the quick-release assembly and a new rubber cylinder can be replaced to continue production, thereby improving production efficiency. A water-cooling assembly is installed between the interior of the first rotating cylinder and the second rotating cylinder, and a fan is provided on the right side of the interior of the second rotating cylinder. The water-cooling assembly and the fan are used to dissipate heat from the inside of the printing roller, thereby avoiding excessive heat that accelerates glazing on the surface of the glazing cylinder, thereby solving the background problem.

[0005] To achieve the above object, the present invention is implemented through the following technical solutions: A printing roller of a printing press includes two groups of brackets, both groups of the brackets are equipped with bearings, one group of the bearings is rotatably connected to a first rotating drum, and the other group of the bearings is rotatably connected to a second rotating drum, a fixing assembly is installed between the first rotating drum and the second rotating drum, a glazing cylinder is sleeved on the first rotating drum, a quick-release assembly is installed between the glazing cylinder and the left end of the first rotating drum, and a water-cooling assembly is installed between the first rotating drum and the interior of the second rotating drum; the quick-release assembly includes a wedge block, a plurality of lifting grooves are formed at the left end of the first rotating drum, a plurality of wedge grooves are formed on the inner wall of the left end of the glazing cylinder, and limit grooves are formed on the left and right sides of the lifting grooves, the wedge block is slidably connected to the lifting grooves, and limit rods are fixedly connected to the left and right sides of the wedge block, and the limit rods are slidably connected to the limit grooves, an L-shaped rod is fixedly connected to the inner side of the wedge block close to the first rotating drum, a spring is sleeved on the L-shaped rod, and a lifting mechanism for driving the L-shaped rod to rise and fall is provided inside the first rotating drum.

[0006] Preferably, the lifting mechanism includes a disc, which is arranged inside the first rotating drum, and a plurality of arc grooves are opened on the disc. The other end of the L-shaped rod is slidably connected to the arc groove. Two groups of connecting rods are fixedly connected to the left side of the disc, and two groups of slide grooves 1 are opened on the left side of the first rotating drum. Slide groove 2 is opened between slide groove 1 and the inside of the first rotating drum, and the left end of the connecting rod is fixedly connected to a slide plate through slide groove 2. The slide plate is slidably connected to slide groove 1, and the connecting rod is slidably connected to slide groove 2. A limiting plate is fixedly sleeved on the connecting rod, and the left side of the limiting plate abuts against the left inner wall of the first rotating drum.

[0007] Preferably, the fixing assembly includes a plurality of bolts, the left end of the second rotating drum is sleeved on the right end of the first rotating drum, and a plurality of threaded holes are opened between the left end of the second rotating drum and the right end of the first rotating drum, and the bolts are threaded through the threaded holes.

[0008] Preferably, the water cooling assembly includes a cooling water pipe, which is arranged between the first rotating drum and the second rotating drum. A water outlet pipe is fixedly installed on the left side of the interior of the first rotating drum, and a water inlet pipe is fixedly installed on the right side of the interior of the second rotating drum. The left and right ends of the cooling water pipe are fixedly connected to the water outlet pipe and the water inlet pipe respectively, and a rotary joint is installed on the left end of the water outlet pipe and the right end of the water inlet pipe.

[0009] Preferably, a fan is provided on the right side inside the second drum.

[0010] Preferably, a plurality of positioning strips are fixedly connected to the outer surfaces of the first rotating drum and the second rotating drum, a plurality of positioning grooves are opened on the inner wall of the glazing drum, and the positioning strips are slidably connected to the positioning grooves.

[0011] Preferably, a fixing plate is fixedly sleeved on the left end of the first rotating drum, and the left side of the glazing drum abuts against the right side of the fixing plate.

[0012] The utility model provides a printing roller for a printing press. Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. A printing roller of a printing machine is equipped with a quick-release assembly between the glazing cylinder and the left end of the first rotating cylinder. The glazing cylinder can be quickly removed from the first rotating cylinder and the second rotating cylinder through the quick-release assembly and a new rubber cylinder can be replaced to continue production, thereby improving production efficiency. A water-cooling assembly is installed between the interior of the first rotating cylinder and the second rotating cylinder, and a fan is set on the right side of the interior of the second rotating cylinder. The water-cooling assembly and the fan are used to dissipate heat from the inside of the printing roller to avoid excessive heat from accelerating glazing on the surface of the glazing cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 This is a schematic diagram of the split structure of the main body of the utility model;

[0016] Figure 3 This is a schematic diagram of the front cross-sectional structure of the main body of the utility model;

[0017] Figure 4 This is a schematic diagram of the external structure of the disc of the present utility model;

[0018] Figure 5 For this utility model Figure 3 A magnified schematic diagram of the structure in the middle.

[0019] In the figure: 1. bracket; 2. bearing; 3. glazing cylinder; 4. chute 1; 5. slide plate; 6. first rotating drum; 7. second rotating drum; 8. positioning groove; 9. positioning strip; 10. threaded hole; 11. bolt; 12. fixing plate; 13. water outlet pipe; 14. water inlet pipe; 15. chute 2; 16. rotary joint; 17. spring; 18. fan; 19. cooling water pipe; 20. disc; 21. arc groove; 22. connecting rod; 23. limit plate; 24. lifting groove; 25. limit groove; 26. wedge block; 27. limit rod; 28. wedge groove; 29. ​​L-shaped rod. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-5 The utility model provides a technical solution: a printing roller of a printing press, comprising two sets of brackets 1, both sets of brackets 1 are equipped with bearings 2, one set of bearings 2 is rotatably connected to a first rotating drum 6, and the other set of bearings 2 is rotatably connected to a second rotating drum 7, a fixing assembly is installed between the first rotating drum 6 and the second rotating drum 7, a glazing cylinder 3 is sleeved on the first rotating drum 6, a quick-release assembly is installed between the glazing cylinder 3 and the left end of the first rotating drum 6, and a water-cooling assembly is installed between the first rotating drum 6 and the interior of the second rotating drum 7;

[0022] The printing roller is fixedly installed with the first rotating drum 6 and the second rotating drum 7 by a fixing component. A quick-release component is installed between the glazing drum 3 and the left end of the first rotating drum 6. The glazing drum 3 can be quickly removed from the first rotating drum 6 and the second rotating drum 7 by the quick-release component and replaced with a new glazing drum 3 to continue production, thereby improving production efficiency. A water-cooling component is installed between the interior of the first rotating drum 6 and the second rotating drum 7, and a fan 18 is set on the right side of the interior of the second rotating drum 7. The water-cooling component and the fan 18 are used to dissipate heat from the inside of the printing roller to avoid excessive heat and accelerate glazing on the surface of the glazing drum 3.

[0023] The quick-release assembly includes a wedge block 26, a plurality of lifting grooves 24 are provided at the left end of the first rotating drum 6, a plurality of wedge grooves 28 are provided on the inner wall of the left end of the glazing drum 3, and limiting grooves 25 are provided on the left and right sides of the lifting grooves 24. The wedge block 26 is slidably connected to the lifting grooves 24, and the left and right sides of the wedge block 26 are fixedly connected to the limiting rods 27, and the limiting rods 27 are slidably connected to the limiting grooves 25. The wedge block 26 is fixedly connected to the inner side of the first rotating drum 6 with an L-shaped rod 29, and a spring 17 is sleeved on the L-shaped rod 29. A lifting mechanism is provided inside the first rotating drum 6 to drive the L-shaped rod 29 to rise and fall.

[0024] The lifting mechanism includes a disc 20, which is arranged inside the first rotating drum 6. A number of arc grooves 21 are opened on the disc 20. The other end of the L-shaped rod 29 is slidably connected to the arc groove 21. Two groups of connecting rods 22 are fixedly connected to the left side of the disc 20. Two groups of slide grooves 1-4 are opened on the left side of the first rotating drum 6. A slide groove 2-15 is opened between the slide groove 1-4 and the inside of the first rotating drum 6. The left end of the connecting rod 22 passes through the slide groove 2-15 and is fixedly connected to the slide plate 5. The slide plate 5 is slidably connected to the slide groove 1-4. The connecting rod 22 is slidably connected to the slide groove 2-15, and a limit plate 23 is fixedly sleeved on the connecting rod 22. The left side of the limit plate 23 abuts against the left inner wall of the first rotating drum 6.

[0025] When the glaze cylinder 3 needs to be disassembled, the slide plate 5 is slid on the slide groove 4, and then the disc 20 is rotated through the connecting rod 22. Since one end of the L-shaped rod 29 is slidably connected to the arc groove 21 on the disc 20, the L-shaped rod 29 is driven to slide into the first rotating cylinder 6 through the rotation of the disc 20, thereby driving the wedge block 26 to slide in the lifting groove 24, so that the wedge block 26 is disengaged from the wedge groove 28, and the glaze cylinder 3 is released from the first rotating cylinder 6, so that the glaze cylinder 3 can be quickly disassembled. When replacing the new glaze cylinder 3, it is only necessary to put the glaze cylinder 3 on the first rotating cylinder 6. When the wedge block 26 is clamped on the wedge groove 28 under the action of the spring 17, the fixation is completed.

[0026] The fixing assembly includes several bolts 11. The left end of the second rotating drum 7 is sleeved on the right end of the first rotating drum 6. A number of threaded holes 10 are opened between the left end of the second rotating drum 7 and the right end of the first rotating drum 6. The bolts 11 are threaded through the threaded holes 10, so that the first rotating drum 6 and the second rotating drum 7 can be quickly installed, which is convenient for internal maintenance and replacement.

[0027] The water cooling assembly includes a cooling water pipe 19, which is arranged between the first rotating drum 6 and the second rotating drum 7. A water outlet pipe 13 is fixedly installed on the left side of the interior of the first rotating drum 6, and a water inlet pipe 14 is fixedly installed on the right side of the interior of the second rotating drum 7. The left and right ends of the cooling water pipe 19 are fixedly connected to the water outlet pipe 13 and the water inlet pipe 14 respectively. The left end of the water outlet pipe 13 and the right end of the water inlet pipe 14 are both equipped with a rotary joint 16. The cooling water enters through the water inlet pipe 14, and the interior of the first rotating drum 6 and the second rotating drum 7 are cooled and dissipated through the cooling water pipe 19. The cooling water after absorbing heat flows out through the water outlet pipe 13. The provision of the rotary joint 16 does not hinder the rotation of the first rotating drum 6 and the second rotating drum 7.

[0028] A fan 18 is provided on the right side of the interior of the second drum 7 to enhance the heat dissipation effect.

[0029] Several positioning strips 9 are fixedly connected to the outer surfaces of the first rotating drum 6 and the second rotating drum 7, and several positioning grooves 8 are opened on the inner wall of the glazing drum 3. The positioning strips 9 are slidably connected to the positioning grooves 8. Through the positioning strips 9 and the positioning grooves 8, the glazing drum 3 can be quickly positioned and sleeved on the first rotating drum 6 and the second rotating drum 7.

[0030] The left end of the first rotating drum 6 is fixedly sleeved with a fixing plate 12, and the left side of the glazing drum 3 abuts against the right side of the fixing plate 12, so that the wedge block 26 on the first rotating drum 6 and the wedge groove 28 on the glazing drum 3 are more firmly embedded.

[0031] Working principle: The printing roller is threaded through the threaded hole 10 by the bolt 11, so that the first rotating drum 6 and the second rotating drum 7 can be quickly fixed and installed, which is convenient for internal maintenance and replacement. When the glazing drum 3 needs to be disassembled, the slide plate 5 is slid on the slide groove 4, and then the disc 20 is rotated through the connecting rod 22. Since one end of the L-shaped rod 29 is slidably connected to the arc groove 21 on the disc 20, the rotation of the disc 20 drives the L-shaped rod 29 to slide into the inside of the first rotating drum 6, thereby driving the wedge block 26 to slide in the lifting groove 24, so that the wedge block 26 is disengaged from the wedge groove 28, and the glazing drum 3 is released from the first rotating drum 6, so that the glazing drum 3 is quickly disassembled. When replacing a new glazing cylinder 3, it is only necessary to sleeve the glazing cylinder 3 on the first rotating cylinder 6. When the wedge block 26 is clamped on the wedge groove 28 under the action of the spring 17, the fixation is completed and production continues, thereby improving production efficiency. The cooling water enters through the water inlet pipe 14, and the interior of the first rotating cylinder 6 and the second rotating cylinder 7 are cooled and dissipated through the cooling water pipe 19. The cooling water after absorbing heat flows out through the water outlet pipe 13. The rotation of the first rotating cylinder 6 and the second rotating cylinder 7 is not hindered by the setting of the rotary joint 16, and a fan 18 is set on the right side of the interior of the second rotating cylinder 7. The heat is dissipated inside the printing roller through the water cooling component and the fan 18 to avoid excessive heat and accelerate the glazing on the surface of the glazing cylinder 3.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0033] 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 printing roller of a printing press, comprising two sets of brackets (1), characterized in that: The two groups of brackets (1) are both equipped with bearings (2), one group of bearings (2) is rotatably connected to a first rotating drum (6), and the other group of bearings (2) is rotatably connected to a second rotating drum (7), a fixing assembly is installed between the first rotating drum (6) and the second rotating drum (7), a glazing drum (3) is sleeved on the first rotating drum (6), a quick-release assembly is installed between the glazing drum (3) and the left end of the first rotating drum (6), and a water-cooling assembly is installed between the inside of the first rotating drum (6) and the second rotating drum (7); The quick-release assembly includes a wedge block (26), a plurality of lifting grooves (24) are provided on the left end of the first rotating cylinder (6), a plurality of wedge grooves (28) are provided on the inner wall of the left end of the glazing cylinder (3), and limiting grooves (25) are provided on the left and right sides of the lifting groove (24). The wedge block (26) is slidably connected to the lifting groove (24), and the left and right sides of the wedge block (26) are fixedly connected to the limiting rod (27), and the limiting rod (27) is slidably connected to the limiting groove (25). The wedge block (26) is fixedly connected to an L-shaped rod (29) on the inner side close to the first rotating cylinder (6), and a spring (17) is provided on the L-shaped rod (29). A lifting mechanism for driving the L-shaped rod (29) to move up and down is provided inside the first rotating cylinder (6).

2. The printing roller of a printing press according to claim 1, characterized in that: The lifting mechanism includes a disc (20), which is arranged inside the first rotating cylinder (6). The disc (20) is provided with a plurality of arc grooves (21). The other end of the L-shaped rod (29) is slidably connected to the arc groove (21). The left side of the disc (20) is fixedly connected with two groups of connecting rods (22). The left side of the first rotating cylinder (6) is provided with two groups of sliding grooves (1) (4). A sliding groove (2) (15) is provided between the sliding groove (1) (4) and the inside of the first rotating cylinder (6). The left end of the connecting rod (22) passes through the sliding groove (15) and is fixedly connected with a slide plate (5). The slide plate (5) is slidably connected to the sliding groove (4). The connecting rod (22) is slidably connected to the sliding groove (15). A limiting plate (23) is fixedly sleeved on the connecting rod (22). The left side of the limiting plate (23) abuts against the left inner wall of the first rotating cylinder (6).

3. The printing roller of a printing press according to claim 2, characterized in that: The fixing assembly includes a plurality of bolts (11), the left end of the second rotating cylinder (7) is sleeved on the right end of the first rotating cylinder (6), and a plurality of threaded holes (10) are opened between the left end of the second rotating cylinder (7) and the right end of the first rotating cylinder (6), and the bolts (11) are threadedly passed through the threaded holes (10).

4. The printing roller of a printing press according to claim 3, characterized in that: The water-cooling assembly includes a cooling water pipe (19), which is arranged between a first rotating drum (6) and a second rotating drum (7). A water outlet pipe (13) is fixedly installed on the left side of the interior of the first rotating drum (6), and a water inlet pipe (14) is fixedly installed on the right side of the interior of the second rotating drum (7). The left and right ends of the cooling water pipe (19) are fixedly connected to the water outlet pipe (13) and the water inlet pipe (14), respectively. A rotary joint (16) is installed at the left end of the water outlet pipe (13) and the right end of the water inlet pipe (14).

5. The printing roller of a printing press according to claim 4, characterized in that: A fan (18) is provided on the right side inside the second rotating drum (7).

6. The printing roller of a printing press according to claim 5, characterized in that: A plurality of positioning strips (9) are fixedly connected to the outer surfaces of the first rotating drum (6) and the second rotating drum (7), and a plurality of positioning grooves (8) are opened on the inner wall of the glazing drum (3), and the positioning strips (9) are slidably connected to the positioning grooves (8).

7. The printing roller of a printing press according to claim 6, characterized in that: The left end of the first rotating drum (6) is fixedly sleeved with a fixing plate (12), and the left side of the glazing drum (3) abuts against the right side of the fixing plate (12).

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