A printing plate roller sealing structure

Abstract

The utility model discloses a printing plate roller sealing structure, relates to the field of printing rollers, solves the problem that the existing device has poor effect of compensating the loose force of spring elastic force for a long time and has low practicality, and adopts the following scheme: comprising a printing plate roller and an outer limiting member and an inner limiting member on the outer side thereof; the inner limiting member is slidably sleeved in the outer limiting member, the main body of the outer limiting member is a sleeve, an end column is fixedly welded on the outer end of the sleeve, and a pressure shaft is fixedly installed at the center of the outer end surface of the end column; the main body of the inner limiting member is a sleeve column slidably sleeved on the inner side of the sleeve, a top cone clamped on the end head of the printing plate roller is fixedly installed on the outer end of the sleeve column, and a pressure block is clamped between the sleeve column and the end column; the printing plate roller sealing structure, through the arrangement of the outer limiting member and the inner limiting member, can adjust the position of the pressure block by rotating a bolt column, so that the spring column is in a compressed state, and then squeezes the acting force between the top cone in the inner limiting member and the printing plate roller.

Description

Technical Field

[0001] The utility model relates to the technical field of printing rollers, in particular to a sealing structure for a printing plate roller. Background Art

[0002] Gravure printing is a direct printing method. It occupies an extremely important position in the fields of printing, packaging and graphic publishing due to its advantages such as thick ink layer, bright colors, high saturation, high plate durability, stable print quality and fast printing speed.

[0003] After searching, the application with patent application number 201811296701.9 disclosed a gravure printing press plate roller sealing device, which relates to the field of printing technology and solves the technical problem of poor sealing performance between the top cone and the plate roller during the use of the gravure printing press in the prior art. The gravure printing press plate roller sealing device includes: a central shaft and an elastic member; one end of the central shaft is sealedly connected to the plate roller located in the gravure printing press housing through the top cone; the other end of the central shaft passes through the gravure printing press housing and is connected to the drive device; the length of the central shaft is adjustable and can be moved closer to or farther away from the plate roller; the elastic member is arranged between the housing of the gravure printing press and the top cone, at least one end of the elastic member is rotatably connected, and the elastic member is always in a compressed state. The present invention is used to improve the sealing performance between the top cone and the plate roller in a gravure printing press;

[0004] The above application document compensates for the spacing difference after long-term loosening through the elastic force of the spring. However, once the loosening spacing amplitude of the spring force compensation is too large and exceeds the limit of the spring, it will not only accelerate the deformation of the spring and reduce the compensation force, but may also affect the sealing limit effect. In addition, relying on the spring elastic force as compensation, the compensation force and stability are limited. After long-term use, the long-term deformation of the spring may further affect the compensation force, and then the compensation effect is also affected.

[0005] Therefore, we propose a printing plate roller sealing structure. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a printing plate roller sealing structure, which solves the problem that the prior device has poor effect of compensating for loosening force due to long-term use of spring elastic force and low practicality.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a printing plate roller sealing structure, including a printing plate roller and an outer limiting member and an inner limiting member on the outer side thereof;

[0008] The inner limiting member is slidably sleeved in the outer limiting member, the main body of the outer limiting member is a sleeve, the outer end of the sleeve is fixedly welded with an end column, and the center of the outer end surface of the end column is fixedly installed with a pressure shaft;

[0009] The main body of the inner limiter is a sleeve column that is slidably sleeved on the inner side of the sleeve. The outer end of the sleeve column is fixedly mounted with a top cone that is clamped on the end of the printing plate roller, and a pressure block is clamped between the sleeve column and the end column.

[0010] Preferably, ten groups of spring columns are fixedly connected to the outer side of the sleeve, and the outer ends of the spring columns are fixedly connected to the outer end surface of the sleeve;

[0011] Among them, the setting of the spring column can ensure the clamping effect between the top cone and the printing plate roller when compressed, thereby ensuring the sealing effect and avoiding the occurrence of poor compression effect due to loosening.

[0012] Preferably, the sleeve column and the end column have an inner pressure groove and an outer pressure groove with oblique side openings on their opposite end surfaces, and a tapered trapezoidal pressure block is clamped between the inner pressure groove and the outer pressure groove;

[0013] Among them, the arrangement of the inner pressure groove and the outer pressure groove can utilize a pressing block to be pressed therein, thereby adjusting the spacing between the inner limit member and the outer limit member to ensure the pressing effect.

[0014] Preferably, an L-shaped top frame is fixedly installed on the top of the sleeve, and a screw sleeve is fixedly sleeved on the top side of the top frame;

[0015] Preferably, the screw sleeve in the screw sleeve is provided with a bolt column, and the bottom end of the bolt column is press-fitted on the center of the top of the pressing block;

[0016] Among them, the screw is used to rotate the bolt column in the top frame to press the pressure block on its bottom side, and then adjust the pressing position between it and the outer pressure groove and the inner pressure groove. Further, the distance between the outer limit part and the inner limit part can be adjusted to ensure the pressing effect of the side.

[0017] Preferably, when the pressing block is pressed at a position halfway between the outer pressure groove and the inner pressure groove, the spring column is in an extreme compression state.

[0018] The utility model provides a printing plate roller sealing structure, which has the following beneficial effects:

[0019] The printing plate roller sealing structure can adjust the position of the pressure block by rotating the bolt column through the arrangement of the outer limit member and the inner limit member, so that the spring column is in a compressed state, and then squeezes the force between the top cone in the inner limit member and the printing plate roller, thereby ensuring the press-fitting effect. At the same time, when looseness occurs, the elastic force of the spring column itself can temporarily compensate for the spacing difference, and the spring column can be adjusted to always be in a compressed state by regularly rotating the bolt column to ensure the press-fitting effect, thereby solving the problem of poor practicality of the existing device due to the poor effect of using the spring elastic force to compensate for the loosening force for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 This is a schematic structural diagram of the briquetting system of the utility model;

[0022] Figure 3 This is a structural diagram of the inner limiter of the utility model;

[0023] Figure 4 This is a structural diagram of the external limiter of the utility model.

[0024] In the figure: 1. Printing plate roller; 2. External limiter; 21. Sleeve; 22. End column; 23. Top frame; 24. External pressure groove; 25. Bolt column; 26. Pressure shaft; 3. Internal limiter; 31. Sleeve column; 32. Top cone; 33. Spring column; 34. Internal pressure groove; 4. Pressure block. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-4 The embodiment of the utility model provides a technical solution: a printing plate roller sealing structure, comprising a printing plate roller 1 and an outer limiting member 2 and an inner limiting member 3 on its outer side; the inner limiting member 3 is slidably sleeved in the outer limiting member 2, the main body of the outer limiting member 2 is a sleeve 21, the outer end of the sleeve 21 is fixedly welded with an end column 22, and a pressure shaft 26 is fixedly installed at the center of the outer end surface of the end column 22; the main body of the inner limiting member 3 is a sleeve column 31 slidably sleeved on the inner side of the sleeve 21, the outer end of the sleeve column 31 is fixedly installed with a top cone 32 clamped on the end head of the printing plate roller 1, and a pressure block 4 is clamped between the sleeve column 31 and the end column 22;

[0027] Among them, the printing plate roller sealing structure, through the arrangement of the outer limit member 2 and the inner limit member 3, can adjust the position of the pressure block 4 by rotating the bolt column 25, so that the spring column 33 is in a compressed state, and then squeezes the force between the top cone 32 in the inner limit member 3 and the printing plate roller 1, thereby ensuring the press-fitting effect. At the same time, when looseness occurs, the elastic force of the spring column 33 itself can temporarily compensate for the spacing difference, and the spring column 33 can be adjusted to always be in a compressed state by regularly rotating the bolt column 25 to ensure the press-fitting effect, thereby solving the problem of poor practicality of the existing device due to long-term use of spring elastic force to compensate for loosening force.

[0028] Example 2:

[0029] Ten groups of spring columns 33 are fixedly connected to the outside of the sleeve 31, and the outer ends of the spring columns 33 are fixedly connected to the outer end surface of the sleeve 21; wherein, the setting of the spring columns 33 can ensure the clamping effect between the top cone 32 and the printing plate roller 1 when compressed, thereby ensuring the sealing effect and avoiding the occurrence of looseness leading to poor compression effect.

[0030] An inner pressure groove 34 and an outer pressure groove 24 with oblique side openings are provided on the opposite end faces of the sleeve column 31 and the end column 22, and a conical trapezoidal pressure block 4 is clamped between the inner pressure groove 34 and the outer pressure groove 24; wherein, the setting of the inner pressure groove 34 and the outer pressure groove 24 can be press-fitted therein by using the pressure block 4, thereby adjusting the spacing between the inner limit member 3 and the outer limit member 2 to ensure the press-fitting effect.

[0031] An L-shaped top frame 23 is fixedly installed on the top of the sleeve 21, and a screw sleeve is fixedly installed on the top side of the top frame 23; a bolt column 25 is installed in the screw sleeve, and the bottom end of the bolt column 25 is pressed into the center of the top of the pressure block 4; wherein, the bolt column 25 in the top frame 23 is rotated by the screw to press the pressure block 4 on its bottom side, and then the pressing position between it and the outer pressure groove 24 and the inner pressure groove 34 is adjusted, and further, the distance between the outer limit member 2 and the inner limit member 3 can be adjusted to ensure the pressing effect of the side.

[0032] When the pressing block 4 is pressed into a position halfway between the outer pressure groove 24 and the inner pressure groove 34 , the spring column 33 is in an extreme compression state.

[0033] The working principle and usage process of the present invention are as follows: when the device is required to work, the inner limit member 3 is clamped at the end of the printing plate roller 1, and then the bolt column 25 is rotated to adjust the height of the pressure block 4, and the distance between the outer limit member 2 and the inner limit member 3 is adjusted synchronously to make the spring column 33 in the ultimate compression state. When it becomes loose after long-term use, the elastic force of the spring column 33 is temporarily used to compensate for the loosening difference. The bolt column 25 is rotated regularly to press the pressure block 4, so that the spring column 33 is in a taut state for a long time to ensure the press-fitting effect and the sealing structure.

[0034] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0035] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A printing plate roller sealing structure, comprising a printing plate roller (1) and an outer limiting member (2) and an inner limiting member (3) on the outer side thereof; Features: The outer limiting member (2) is slidably sleeved with an inner limiting member (3); the main body of the outer limiting member (2) is a sleeve (21); an end column (22) is fixedly welded to the outer end of the sleeve (21); and a pressure shaft (26) is fixedly installed at the center of the outer end surface of the end column (22); The main body of the inner limit member (3) is a sleeve column (31) which is slidably mounted on the inner side of the sleeve (21); a top cone (32) which is clamped on the end of the printing plate roller (1) is fixedly mounted on the outer end of the sleeve column (31); and a pressure block (4) is clamped between the sleeve column (31) and the end column (22).

2. A printing plate roller sealing structure according to claim 1, characterized in that: Ten groups of spring columns (33) are fixedly connected to the outer side of the sleeve column (31), and the outer ends of the spring columns (33) are fixedly connected to the outer end surface of the sleeve (21).

3. A printing plate roller sealing structure according to claim 1, characterized in that: The sleeve column (31) and the end column (22) have an inner pressure groove (34) and an outer pressure groove (24) with oblique side openings on their opposite end surfaces, and a conical trapezoidal pressure block (4) is clamped between the inner pressure groove (34) and the outer pressure groove (24).

4. A printing plate roller sealing structure according to claim 1, characterized in that: An L-shaped top frame (23) is fixedly mounted on the top of the sleeve (21), and a lead screw sleeve is fixedly sleeved on the top side of the top frame (23).

5. A printing plate roller sealing structure according to claim 4, characterized in that: The screw sleeve in the screw sleeve is provided with a bolt column (25), and the bottom end of the bolt column (25) is pressed on the center of the top of the pressing block (4).

6. A printing plate roller sealing structure according to claim 1, characterized in that: When the pressing block (4) is pressed at a position halfway between the outer pressure groove (24) and the inner pressure groove (34), the spring column (33) is in an extreme compression state.

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