Numerical control lathe spindle protection device of printing plate roller

Abstract

The utility model relates to the technical field of spindle protection devices, in particular to a numerical control lathe spindle protection device of a printing plate roller, which comprises a roller and fixing bolts, the roller is fixedly connected with a roller shaft component through the fixing bolts, the outer side of the roller shaft component is fixedly connected with a hollow rubber air bag, and the inner side of the roller shaft component is fixedly connected with a movable component. The roll shaft assembly comprises a roll shaft body, one side of the roll shaft body is fixedly connected with a roll shaft connecting end, a first air channel is formed in the inner side of the roll shaft body, a filter plate is fixedly connected to the inner side of the first air channel formed in the roll shaft body, a ring fixing groove is formed in the outer portion of the roll shaft body, and an inflation groove is formed in the inner side of the roll shaft body. According to the printing plate roller, the situation that when the printing plate roller rotates at a high speed, sealing between the roller and the roller shaft is not tight due to the effect of centrifugal force can be prevented, and it is prevented that impurities enter the position between the roller and the roller shaft, and the service life of the printing plate roller is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of spindle protection devices, and particularly relates to a numerical control lathe spindle protection device for a printing plate cylinder. Background Art

[0002] A printing plate cylinder, also called a steel roller, is generally used for plate making. The surface of the cylinder is copper-plated, engraved with patterns by an intaglio electronic engraving machine, and then plated with a layer of chromium. During the processing of the printing plate cylinder, the spindle is one of the key components of a numerical control lathe, and a protection device is required to ensure the processing accuracy of the printing plate cylinder and extend the service life of the equipment.

[0003] A sealing ring is embedded and installed between the cylinder and the roller shaft to block external substances. However, during use, the high-speed rotating printing plate cylinder will drive the internal sealing ring to rotate under the action of friction, and the sealing ring will expand outwards under the action of centrifugal force, affecting the sealing performance between the printing plate cylinder and the roller shaft. Therefore, a numerical control lathe spindle protection device for a printing plate cylinder is proposed to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a numerical control lathe spindle protection device for a printing plate cylinder to solve the problem that the high-speed rotating printing plate cylinder will drive the internal sealing ring to rotate under the action of friction, and the sealing ring will expand outwards under the action of centrifugal force, affecting the sealing performance between the printing plate cylinder and the roller shaft.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A numerical control lathe spindle protection device for a printing plate cylinder includes a cylinder and fixing bolts. The cylinder is fixedly connected to a roller shaft assembly through the fixing bolts. A hollow rubber airbag is fixedly connected to the outside of the roller shaft assembly, and a movable assembly is fixedly connected to the inside of the roller shaft assembly. The roller shaft assembly includes a roller shaft body. One side of the roller shaft body is fixedly connected to a roller shaft connection end. A first air passage is opened inside the roller shaft body. A filter plate is fixedly connected to the inside of the roller shaft body where the first air passage is opened. A fixing ring groove is opened on the outside of the roller shaft body. An air inflation groove is opened inside the roller shaft body. A first baffle is fixedly connected to the inside of the air inflation groove opened by the roller shaft body. The air inflation groove opened by the roller shaft body is fixedly connected to a second baffle. A second air passage is opened inside the roller shaft body. The movable assembly includes a spring. One side of the spring is fixedly connected to a gravity column block. A rubber sealing ring is fixedly connected to the outside of the gravity column block. The gravity column block is slidably connected to the inside of the air inflation groove. The inside of the hollow rubber airbag is fixedly connected to one side of the fixing ring groove opened by the roller shaft body.

[0007] As a further optimized content of the present utility model, wherein: the inner side of the drum is hollow, the drum is sleeved outside the roller shaft body, a plurality of threaded holes are provided on the inner side of the drum, and a plurality of threaded holes are provided inside the roller shaft body.

[0008] As a further optimized content of the present utility model, wherein: the shape of the fixed ring groove is annular, the number of the fixed ring grooves is two, and the fixed ring grooves are provided at the front end and the rear end of the roller shaft body.

[0009] As a further optimized content of the present utility model, wherein: the fixed ring groove is communicated with the inflation groove, the number of the inflation grooves is four, the shape of the inflation groove is cylindrical, the inflation groove penetrates through the outside of the roller shaft body, the inflation groove is communicated with the first air duct, the inner side of the hollow rubber airbag is hollow, and the inside of the inflation groove is communicated with the inside of the hollow rubber airbag.

[0010] As a further optimized content of the present utility model, wherein: the number of the first air ducts corresponds to the number of the inflation grooves one by one, the first air duct is communicated with the second air duct, the number of the first air ducts corresponds to the number of the second air ducts one by one, the second air duct penetrates through and is provided on the outside of the roller shaft body, and the number of the filter plates corresponds to the number of the second air ducts one by one.

[0011] As a further optimized content of the present utility model, wherein: the number of the first baffles is four, one side of the first baffle is attached to one side of the gravity column block, the shape of the first baffle is the same as the shape of the second baffle, the number of the first baffles corresponds to the number of the second baffles one by one, and there is a distance between the second baffle and the gravity column block.

[0012] As a further optimized content of the present utility model, wherein: the shape of the gravity column block is cylindrical, the gravity column block is attached to the inner side of the inflation groove provided on the roller shaft body through a rubber sealing ring, the rubber sealing ring is fixed on the outside of both ends of the gravity column block, and the number of the gravity column blocks corresponds to the number of the first air ducts one by one.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] In the present utility model, through the arranged roller shaft assembly, hollow rubber airbag and movable assembly, the device utilizes the action of centrifugal force to keep the hollow rubber airbag in an inflated state, which can prevent the printing plate roller from being not tightly sealed between the drum and the roller shaft due to the action of centrifugal force when rotating at a high speed, and prevent impurities from entering between the drum and the roller shaft and affecting the service life of the printing plate roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2Schematic diagram of the hollow rubber airbag structure of the present utility model;

[0017] Figure 3 Schematic diagram of the roller assembly structure of the present utility model;

[0018] Figure 4 For the present utility model Figure 3 Schematic diagram of the structure at position A.

[0019] In the figure: 1. Drum; 2. Fixed bolt;

[0020] 3. Roller assembly; 31. Roller body; 32. Roller connection end; 33. First air duct; 34. Filter plate; 35. Fixing ring groove; 36. Inflation groove; 37. First baffle; 38. Second baffle; 39. Second air duct;

[0021] 4. Hollow rubber airbag;

[0022] 5. Movable assembly; 51. Spring; 52. Gravity column block; 53. Rubber sealing ring. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0025] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0026] A numerical control lathe spindle protection device for a printing plate roller, comprising a drum 1 and fixing bolts 2. The drum 1 is fixedly connected to a roller shaft assembly 3 through the fixing bolts 2. A hollow rubber airbag 4 is fixedly connected to the outside of the roller shaft assembly 3, and a movable assembly 5 is fixedly connected to the inside of the roller shaft assembly 3. The roller shaft assembly 3 includes a roller shaft body 31. One side of the roller shaft body 31 is fixedly connected to a roller shaft connection end 32. A first air passage 33 is opened inside the roller shaft body 31. A filter plate 34 is fixedly connected to the inside of the first air passage 33 opened in the roller shaft body 31. A fixing ring groove 35 is opened outside the roller shaft body 31. An inflation groove 36 is opened inside the roller shaft body 31. A first baffle 37 is fixedly connected to the inside of the inflation groove 36 opened in the roller shaft body 31. The inflation groove 36 opened in the roller shaft body 31 is fixedly connected to a second baffle 38. A second air passage 39 is opened inside the roller shaft body 31. The movable assembly 5 includes a spring 51. One side of the spring 51 is fixedly connected to a gravity column block 52. A rubber sealing ring 53 is fixedly connected to the outside of the gravity column block 52. The gravity column block 52 is slidably connected to the inside of the inflation groove 36. The inside of the hollow rubber airbag 4 is fixed to one side of the fixing ring groove 35 opened in the roller shaft body 31.

[0027] As a further implementation of this solution, the inside of the drum 1 is hollow. The drum 1 is sleeved outside the roller shaft body 31. A number of threaded holes are opened inside the drum 1, and a number of threaded holes are opened inside the roller shaft body 31, so that the roller shaft body 31 and the drum 1 can be disassembled and fixed, facilitating later maintenance;

[0028] As a further implementation of this solution, the fixing ring groove 35 is opened in an annular shape. The number of the fixing ring grooves 35 is two, and the fixing ring grooves 35 are opened at the front end and the rear end of the roller shaft body 31, facilitating the movement of the hollow rubber airbag 4 inside the fixing ring groove 35, and playing a role in sealing the two ends of the drum 1 and the roller shaft body 31 through the hollow rubber airbag 4;

[0029] As a further implementation of this solution, the fixing ring groove 35 is communicated with the inflation groove 36. The number of the inflation grooves 36 is four. The inflation grooves 36 are opened in a cylindrical shape. The inflation grooves 36 penetrate through the outside of the roller shaft body 31. The inflation grooves 36 are communicated with the first air passage 33. The inside of the hollow rubber airbag 4 is hollow. The inside of the inflation groove 36 is communicated with the inside of the hollow rubber airbag 4, facilitating the gas flow inside the inflation groove 36 and the hollow rubber airbag 4;

[0030] As a further implementation of this solution, the number of the first air passages 33 corresponds one by one to the number of the inflation grooves 36. The first air passages 33 are communicated with the second air passages 39. The number of the first air passages 33 corresponds one by one to the number of the second air passages 39. The second air passages 39 penetrate through and are opened outside the roller shaft body 31. The number of the filter plates 34 corresponds one by one to the number of the second air passages 39, playing an effect of filtering impurities in the air and realizing the function of balancing the air pressure in the first air passage 33, the inflation groove 36 and the second air passage 39;

[0031] As a further implementation of the present invention, there are four first baffles 37, one side of the first baffle 37 is fitted with one side of the gravity column block 52, the shape of the first baffle 37 is the same as the shape of the second baffle 38, the number of the first baffles 37 corresponds to the number of the second baffles 38, and a spacing is provided between the second baffle 38 and the gravity column block 52. The second baffle 38 and the first baffle 37 play a role in limiting the gravity column block 52, preventing the gravity column block 52 from escaping from the interior of the inflation groove 36, and preventing the hollow rubber airbag 4 from over-expanding;

[0032] As a further implementation scheme of the present scheme, the gravity column block 52 is cylindrical in shape, and the gravity column block 52 is fitted with the inner side of the inflation groove 36 opened in the roller body 31 through a rubber sealing ring 53. The rubber sealing ring 53 is fixed on the outer side of both ends of the gravity column block 52. The number of gravity column blocks 52 corresponds to the number of first air channels 33 one by one, so that the gravity column block 52 moves under the action of centrifugal force, and the gas inside the inflation groove 36 is filled into the hollow rubber airbag 4, thereby ensuring the stability of the seal between the drum 1 and the roller body 31.

[0033] Workflow: During the use of the device, when achieving the effect of preventing the drum 1 and the roller shaft assembly 3 from having an imperfect seal due to centrifugal force, the drum 1 is sleeved on the outside of the roller shaft body 31. At this time, the inner side of the drum 1 is in contact with the roller shaft body 31 through the hollow rubber airbag 4, and the drum 1 and the roller shaft body 31 are sealed by the fixing bolts 2. When the drum 1 and the roller shaft assembly 3 rotate at a high speed as a whole, the gravity column block 52 moves under the action of centrifugal force. The gravity column block 52 moves towards the outside of the roller shaft body 31. The gravity column block 52 is slidably connected inside the air inflation groove 36. At the same time, the gravity column block 52 is in contact with the inside of the air inflation groove 36 through the rubber sealing ring 53, playing a role in sealing between the roller shaft body 31 and the gravity column block 52. When the gravity column block 52 moves, it pulls the spring 51 to deform, and the spring 51 plays a role in resetting the gravity column block 52 when it moves. Under the pulling force of the spring 51, the gravity column block 52 remains in contact with the first baffle 37. The first baffle 37 plays a role in limiting the gravity column block 52, which can ensure that the gas inside the hollow rubber airbag 4 can keep the outside of the hollow rubber airbag 4 in contact with the inner side of the drum 1, thus maintaining a sealed state. When the gravity column block 52 moves, it pushes the gas inside the air inflation groove 36, causing some of the gas inside the air inflation groove 36 to enter the hollow rubber airbag 4, keeping the hollow rubber airbag 4 in an inflated state and ensuring that the hollow rubber airbag 4 maintains a sealed state between the drum 1 and the roller shaft body 31. When the gravity column block 52 moves, it contacts the second baffle 38. The second baffle 38 plays a role in limiting the gravity column block 52, preventing the gravity column block 52 from detaching from the inside of the air inflation groove 36 and at the same time preventing the hollow rubber airbag 4 from over-inflating. At the same time, some gas enters the second air passage 39 from the gap between the drum 1 and the roller shaft body 31, passes through the filter plate 34, and the filter plate 34 plays a role in filtering impurities in the air. The gas enters the first air passage 33 from the second air passage 39 and enters the air inflation groove 36 from the inside of the first air passage 33, achieving the effect of balancing the air pressures in the first air passage 33, the air inflation groove 36, and the second air passage 39.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC lathe spindle protection device for a printing plate roller, comprising a roller (1) and a fixing bolt (2), characterized in that: The roller (1) is fixedly connected to a roller assembly (3) via fixing bolts (2); a hollow rubber airbag (4) is fixedly connected to the outside of the roller assembly (3); and a movable assembly (5) is fixedly connected to the inside of the roller assembly (3); The roller assembly (3) comprises a roller body (31), one side of the roller body (31) is fixedly connected to a roller connecting end (32), a first air passage (33) is provided inside the roller body (31), a filter plate (34) is fixedly connected inside the first air passage (33) provided in the roller body (31), a fixing ring groove (35) is provided outside the roller body (31), an air filling groove (36) is provided inside the roller body (31), a first baffle plate (37) is fixedly connected inside the air filling groove (36) at the beginning of the roller body (31), a second baffle plate (38) is fixedly connected to the air filling groove (36) provided in the roller body (31), a second air passage (39) is provided inside the roller body (31), and the movable assembly (5) comprises a spring (51), one side of the spring (51) is fixedly connected to a gravity column block (52), and the outer side of the gravity column block (52) is fixedly connected to a rubber sealing ring (53); The gravity column block (52) is slidably connected to the inner side of the inflation groove (36), and the inner side of the hollow rubber airbag (4) is fixed to one side of the fixing ring groove (35) provided on the roller body (31).

2. The CNC lathe spindle protection device for a printing plate roller according to claim 1, characterized in that: The inner side of the roller (1) is hollow, the roller (1) is sleeved on the outer side of the roller body (31), a plurality of threaded holes are opened on the inner side of the roller (1), and a plurality of threaded holes are opened inside the roller body (31).

3. The CNC lathe spindle protection device for a printing plate roller according to claim 1, characterized in that: The opening shape of the fixing ring groove (35) is annular. There are two fixing ring grooves (35) and the fixing ring grooves (35) are opened at the front end and the rear end of the roller body (31).

4. The spindle protection device for a CNC lathe of a printing plate roller according to claim 1, characterized in that: The fixing ring groove (35) is communicated with the inflation groove (36). There are four inflation grooves (36). The inflation groove (36) is in the shape of a cylinder. The inflation groove (36) passes through the outside of the roller body (31). The inflation groove (36) is communicated with the first air channel (33). The inside of the hollow rubber airbag (4) is hollow. The inside of the inflation groove (36) is communicated with the inside of the hollow rubber airbag (4).

5. The CNC lathe spindle protection device for a printing plate roller according to claim 1, characterized in that: The number of the first air channels (33) corresponds to the number of the inflation grooves (36), the first air channels (33) are connected to the second air channels (39), the number of the first air channels (33) corresponds to the number of the second air channels (39), the second air channels (39) penetrate and start outside the roller body (31), and the number of the filter plates (34) corresponds to the number of the second air channels (39).

6. The CNC lathe spindle protection device for a printing plate roller according to claim 1, characterized in that: There are four first baffles (37), one side of the first baffle (37) is in contact with one side of the gravity column block (52), the shape of the first baffle (37) is the same as the shape of the second baffle (38), the number of the first baffles (37) corresponds to the number of the second baffles (38), and a spacing is provided between the second baffle (38) and the gravity column block (52).

7. The spindle protection device for a CNC lathe of a printing plate roller according to claim 1, characterized in that: The gravity column block (52) is cylindrical in shape, and the gravity column block (52) is fitted to the inner side of the inflation groove (36) provided in the roller body (31) via a rubber sealing ring (53). The rubber sealing ring (53) is fixed to the outer sides of both ends of the gravity column block (52), and the number of the gravity column blocks (52) corresponds to the number of the first air channels (33).

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