Printing roll shaft convenient to clean

Abstract

The utility model discloses a printing roll shaft convenient to clean, and relates to the technical field of printing equipment, the printing roll shaft comprises a roll shaft, the outer wall of one end of the roll shaft is fixedly connected with a threaded core column, the inner wall of the threaded core column is movably provided with a fixing assembly, and the interior of the threaded core column is provided with a plurality of groups of movable cavities around the circle center in an equal-angle array mode; the fixing assembly comprises a pressing block rotationally connected to the inner wall of the movable cavity. A printing roller sleeve is firstly aligned with a roller shaft to be inserted, a clamping hole corresponds to a clamping rod, then a threaded buckle plate is installed on the outer wall of a threaded core column and screwed tightly, the threaded buckle plate extrudes a pressing block, the pressing block drives a groove block to rotate, then an inserting rod, a U-shaped block and the clamping rod move upwards, a spring is pressed, and preparation is made for inward retraction and reset of the clamping rod; rapid and high-strength fixing of the printing roller sleeve is achieved, dirty, different-pattern or damaged printing roller sleeves can be conveniently disassembled and assembled to be cleaned or replaced in a centralized mode, the cleaning efficiency is improved, the whole printing roller does not need to be replaced, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to a printing roller shaft which is easy to clean. Background Art

[0002] In today's printing industry, printing rollers play a vital role. With the continuous advancement of technology and the increasing diversification of printing needs, the performance and quality requirements of printing rollers are also continuously rising. Traditional printing rollers usually adopt a relatively simple integral structure, which can meet certain printing needs in actual applications;

[0003] The printing roller needs to be cleaned regularly during use to ensure stable printing quality. When the printing roller is damaged, it must be replaced in time. However, the cleaning and replacement process of traditional printing rollers is a tedious and complicated process.

[0004] However, the existing printing roller equipment still has certain shortcomings. Traditional printing rollers are mostly integral structures. When printing rollers with different patterns need to be replaced or replaced due to damage, the cost is high. In addition, printing rollers are usually heavy, and cleaning the entire printing roller is very cumbersome, consuming a lot of time and manpower, affecting the efficiency and progress of printing production. This integral structure lacks flexibility and convenience when facing diversified needs and maintenance needs. Utility Model Content

[0005] Based on this, the purpose of the present invention is to provide a printing roller that is easy to clean, so as to solve the technical problems mentioned in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a printing roller shaft that is easy to clean, comprising a roller shaft, wherein an outer wall of one end of the roller shaft is fixedly connected to a threaded core column, an inner wall of the threaded core column is movably mounted with a fixing assembly, and the interior of the threaded core column is provided with a plurality of movable cavities arranged in an array of equal angles around the center of a circle;

[0007] The fixing assembly includes a pressure block rotatably connected to the inner wall of the movable cavity, a groove block is fixedly connected to the outer wall of one end of the pressure block, a clamping rod is slidably passed through the top inner wall of the movable cavity, the outer wall of the bottom end of the clamping rod is located on the inner wall of the movable cavity and is fixedly connected to a U block, the inner wall of the U block is fixedly connected to a through rod, and the through rod is inserted into the inner wall of the groove block, and the outer wall of the clamping rod is located inside the movable cavity and is sleeved with a spring.

[0008] By first aligning the printing roller sleeve with the roller shaft and inserting it so that the clamping hole corresponds to the clamping rod, and then installing the threaded buckle plate on the outer wall of the threaded core column and tightening it, the threaded buckle plate squeezes the pressure block, and the pressure block drives the groove block to rotate, thereby moving the insertion rod, U block and clamping rod upward. The spring is compressed to prepare for the clamping rod to retract and reset. The clamping rod extends upward and is inserted into the clamping hole, thereby achieving rapid and high-strength fixation of the printing roller sleeve, facilitating the disassembly and assembly of dirty, different-pattern or damaged printing roller sleeves for centralized cleaning or replacement, improving cleaning efficiency without the need to replace the entire printing roller shaft, and reducing usage costs.

[0009] Furthermore, the outer wall of one end of the pressing block is sharp, and the sharp end of the pressing block extends to the outer wall of the threaded core column. The threaded core column is provided with a groove at the position corresponding to the sharp end, and a through hole is provided at the position where the threaded core column contacts the clamping rod.

[0010] By adopting the above technical solution, the outer wall of one end of the pressure block is sharp and can extend to the outer wall of the threaded core column through the groove opened at the corresponding position of the outer wall of the threaded core column, so that when the threaded buckle plate is tightened and moved to the printing roller sleeve, the smooth inner wall can press the pressure block to rotate, thereby driving multiple groups of card rods to move upward through the perforation.

[0011] Furthermore, the outer wall of the bottom end of the clamping rod is fixedly sleeved with a limiting plate, and the outer walls at both ends of the spring are in contact with the inner wall of the movable cavity and the upper surface of the limiting plate respectively.

[0012] By adopting the above technical solution, the limiting piece fixedly sleeved on the outer wall of the bottom end of the clamping rod can limit the spring, and the spring is used to provide power for the clamping rod to move downward and reset.

[0013] Furthermore, the outer wall of the threaded core column is threadedly connected to a threaded buckle plate, the end of the roller shaft away from the fixing component is fixedly connected to a limiting ring, and the outer wall of the roller shaft is provided with a first positioning groove.

[0014] By adopting the above technical solution, the limiting ring can limit and fix one end of the printing roller sleeve to prevent slipping and ensure the fixing effect. The first positioning groove opened on the outer wall of the roller shaft and the second positioning groove opened on the inner wall of the printing roller sleeve are interlocked with each other, and the printing roller sleeve can be precisely docked and installed to prevent the printing roller sleeve from loosening and accuracy deviation during use.

[0015] Furthermore, a printing roller sleeve is slidably sleeved on the outer wall of the first positioning groove, and a matching second positioning groove is provided at the position where the inner wall of the printing roller sleeve contacts the first positioning groove.

[0016] By adopting the above technical solution, when the printing roller sleeve needs to be replaced, it is only necessary to cooperate with the fixing component to complete high-precision and high-strength installation. The printing roller can be quickly disassembled and replaced for different printing contents, maintenance and cleaning, and can be replaced and cleaned separately. There is no need to replace the entire printing roller, which reduces the cost of use. At the same time, the printing roller sleeve can be cleaned separately, which is convenient for placement and transportation, and improves cleaning efficiency.

[0017] Furthermore, a hexagonal nut is fixed on the side of the threaded plate away from the fixing assembly, a corresponding thread groove is provided at the contact position between the inner wall of the threaded plate and the threaded core column, and the inner wall at the corresponding position between the threaded plate and the fixing assembly is smooth.

[0018] By adopting the above technical solution, a hexagonal nut is fixed on the side of the threaded plate away from the fixed component, which can be easily twisted using a wrench tool. The corresponding positions of the threaded plate and the fixed component have smooth inner walls to avoid contact between the thread groove and the end of the clamping rod and thus prevent jamming, thereby ensuring normal installation of the equipment.

[0019] Furthermore, an annular flange is fixedly connected to one end of the second positioning groove close to the fixing assembly, and a clamping hole with matching size is provided at the position where the inner wall of the annular flange contacts the clamping rod.

[0020] By adopting the above technical solution, the second positioning groove is fixedly connected with an annular flange at one end close to the fixing component, which can be close to the clamping rod at the corresponding position, so that the clamping rod can be inserted into the clamping hole within a limited range to achieve rapid installation and fixation of the printing roller sleeve.

[0021] In summary, the present invention has the following beneficial effects:

[0022] The utility model first aligns the printing roller sleeve with the roller shaft and inserts it so that the clamping hole corresponds to the clamping rod, and then the threaded buckle plate is installed on the outer wall of the threaded core column and tightened. The threaded buckle plate squeezes the pressure block, and the pressure block drives the groove block to rotate, thereby causing the insertion rod, the U block and the clamping rod to move upward. The spring is compressed to prepare for the inward retraction and reset of the clamping rod. The clamping rod extends upward and is inserted into the clamping hole, so that the printing roller sleeve can be quickly and strongly fixed. It is convenient to disassemble and install dirty, different-pattern or damaged printing roller sleeves for centralized cleaning or replacement, thereby improving cleaning efficiency and eliminating the need to replace the entire printing roller, thereby reducing usage costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is the main view of the utility model;

[0024] Figure 2 This is a disassembled diagram of the utility model;

[0025] Figure 3 This is a detailed structural diagram of the printing roller sleeve of the present utility model;

[0026] Figure 4 This is a cross-sectional view of the printing roller sleeve of the present utility model;

[0027] Figure 5 This is a detailed structural diagram of the threaded core column of the present utility model;

[0028] Figure 6 For the utility model Figure 5 Enlarged detail of point A in the middle;

[0029] Figure 7 This is a cutaway view of the threaded core column of the present utility model;

[0030] Figure 8 This is a plan view of the assembly installed in the extruded state of the present invention.

[0031] In the figure: 1. Roller; 11. First positioning groove; 12. Threaded core column; 121. Active cavity; 13. Limiting ring; 2. Fixing assembly; 21. Pressure block; 211. Slot block; 22. U block; 221. Through rod; 222. Clamping rod; 23. Spring; 3. Printing roller sleeve; 31. Second positioning groove; 32. Annular flange; 4. Threaded buckle plate. DETAILED DESCRIPTION

[0032] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] The following describes an embodiment of the present invention based on its overall structure.

[0034] A printing roller that is easy to clean, such as Figure 1 - Figure 8 As shown, it includes a roller shaft 1, a threaded core column 12 is fixedly connected to the outer wall of one end of the roller shaft 1, a fixing component 2 is movably installed on the inner wall of the threaded core column 12, and a plurality of groups of movable cavities 121 are arranged in an array of equal angles around the center of the circle inside the threaded core column 12;

[0035] The fixing assembly 2 includes a pressure block 21 rotatably connected to the inner wall of the movable cavity 121, and the outer wall of one end of the pressure block 21 is fixedly connected to the groove block 211. The top inner wall of the movable cavity 121 is slidably penetrated by a clamping rod 222. The outer wall of the bottom end of the clamping rod 222 is located on the inner wall of the movable cavity 121 and is fixedly connected to a U-block 22. The inner wall of the U-block 22 is fixedly connected to a through rod 221, and the through rod 221 is inserted into the inner wall of the groove block 211. The outer wall of the clamping rod 222 is located inside the movable cavity 121 and is sleeved with a spring 23.

[0036] The printing roller sleeve 3 is first aligned with the roller shaft 1 and inserted, and ensure that the card hole corresponds to the card rod 222. Then, the threaded buckle plate 4 is installed on the outer wall of the threaded core column 12 and continuously tightened. The threaded buckle plate 4 is squeezed toward the printing roller sleeve 3, and its smooth inner wall squeezes one end of multiple groups of pressure blocks 21. The pressure block 21 drives the groove block 211 to rotate, and the groove block 211 drives the insertion rod, U block 22 and card rod 222 to move upward. The spring 23 is compressed to prepare for the inward retraction and reset of the card rod 222. The card rod 222 extends upward and is inserted into the card hole to achieve rapid and high-strength fixation of the printing roller sleeve 3, which is convenient for disassembly and assembly of dirty, different printed patterns or damaged printing roller sleeves 3 for centralized cleaning or replacement, thereby improving cleaning efficiency without the need to replace the entire printing roller, reducing usage costs.

[0037] See also Figure 5 - Figure 8 The outer wall of one end of the pressing block 21 is sharp, and the sharp end of the pressing block 21 extends to the outer wall of the threaded core column 12. A through groove is opened at the position corresponding to the sharp end of the threaded core column 12, and a through hole is opened at the contact position between the threaded core column 12 and the clamping rod 222. By setting the above structure, the outer wall of one end of the pressing block 21 is sharp and can extend to the outer wall of the threaded core column 12 through the through groove opened at the corresponding position of the outer wall of the threaded core column 12, so that when the threaded buckle plate 4 is tightened and moved to the printing roller sleeve 3, its smooth inner wall can press the pressing block 21 to rotate, thereby driving multiple groups of clamping rods 222 to move upward through the through holes.

[0038] See also Figure 5 - Figure 8 The outer wall of the bottom end of the card rod 222 is fixedly sleeved with a limiting plate, and the outer walls at both ends of the spring 23 are respectively in contact with the inner wall of the active cavity 121 and the upper surface of the limiting plate. By setting the above structure, the utility model can limit the spring 23 by setting the outer wall of the bottom end of the card rod 222. The spring 23 is used to provide power for the card rod 222 to move down and reset.

[0039] See also Figure 1 - Figure 4 The outer wall of the threaded core column 12 is threadedly connected with a threaded buckle plate 4, and the end of the roller 1 away from the fixed component 2 is fixedly connected to a limit ring 13. The outer wall of the roller 1 is provided with a first positioning groove 11. By setting the above structure, the utility model allows the limit ring 13 to limit and fix one end of the printing roller sleeve 3 to prevent slipping and ensure the fixing effect. The first positioning groove 11 provided on the outer wall of the roller 1 and the second positioning groove 31 provided on the inner wall of the printing roller sleeve 3 are engaged with each other, and the printing roller sleeve 3 can be precisely docked and installed to prevent the printing roller sleeve 3 from loosening and accuracy deviation during use.

[0040] See also Figure 2 - Figure 4The outer wall of the first positioning groove 11 is slidably sleeved with the printing roller sleeve 3, and the inner wall of the printing roller sleeve 3 is provided with a matching second positioning groove 31 at the contact position with the first positioning groove 11. By setting the above structure, the utility model only needs to cooperate with the fixing component 2 when the printing roller sleeve 3 needs to be replaced to complete high-precision and high-strength installation. It can be quickly disassembled and replaced for different printing contents, maintenance and cleaning of the printing roller, and can be replaced and cleaned separately without replacing the entire printing roller, reducing the use cost. At the same time, the printing roller sleeve 3 can be cleaned separately, which is convenient for placement and transportation, and improves cleaning efficiency.

[0041] See also Figure 1 - Figure 3 A hexagonal nut is fixed on the side of the threaded buckle plate 4 away from the fixing component 2, and a corresponding threaded groove is provided at the contact position between the inner wall of the threaded buckle plate 4 and the threaded core column 12. The threaded buckle plate 4 and the fixing component 2 have smooth inner walls at corresponding positions. By setting the above structure, the threaded buckle plate 4 is fixed on the side away from the fixing component 2, which can be easily twisted using a wrench tool. The threaded buckle plate 4 and the fixing component 2 have smooth inner walls at corresponding positions, which can avoid the contact between the threaded groove and the end of the clamping rod 222 and the resulting jamming, thereby ensuring normal installation of the equipment.

[0042] See also Figure 2 - Figure 4 The second positioning groove 31 is fixedly connected to an annular flange 32 at one end close to the fixing component 2, and a card hole of matching size is opened at the inner wall of the annular flange 32 and the contact position of the card rod 222. By setting the above structure, the utility model can fix the annular flange 32 at one end of the second positioning groove 31 close to the fixing component 2, which can be close to the card rod 222 at the corresponding position, so that the card rod 222 can be inserted into the card hole within a limited range to realize the rapid installation and fixation of the printing roller sleeve 3.

[0043] The working principle of the utility model is as follows: first, align the printing roller sleeve 3 with the roller shaft 1 and insert it, and ensure that the card hole corresponds to the card rod 222, then install the threaded buckle plate 4 on the outer wall of the threaded core column 12 and continuously tighten it, the threaded buckle plate 4 is squeezed toward the printing roller sleeve 3, and its smooth inner wall squeezes one end of multiple groups of pressure blocks 21, the pressure block 21 drives the groove block 211 to rotate, the groove block 211 drives the insertion rod, U block 22 and card rod 222 to move upward, the spring 23 is compressed to prepare for the inward retraction and reset of the card rod 222, the card rod 222 extends upward and inserts into the card hole to realize fast and high-strength fixation of the printing roller sleeve 3, which is convenient for disassembly and assembly of dirty, different printed patterns or damaged printing roller sleeves 3 for centralized cleaning or replacement, while improving cleaning efficiency without replacing the entire printing roller, reducing usage costs.

[0044] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A printing roller that is easy to clean, comprising a roller (1), characterized in that: A threaded core column (12) is fixedly connected to the outer wall of one end of the roller shaft (1), a fixed component (2) is movably mounted on the inner wall of the threaded core column (12), and a plurality of groups of movable cavities (121) are arranged in an array of equal angles around the center of the circle inside the threaded core column (12); The fixing assembly (2) includes a pressure block (21) rotatably connected to the inner wall of the movable cavity (121); the outer wall of one end of the pressure block (21) is fixedly connected to a groove block (211); the top inner wall of the movable cavity (121) is slidably penetrated by a clamping rod (222); the outer wall of the bottom end of the clamping rod (222) is located on the inner wall of the movable cavity (121) and is fixedly connected to a U block (22); the inner wall of the U block (22) is fixedly connected to a through rod (221), and the through rod (221) is inserted into the inner wall of the groove block (211); the outer wall of the clamping rod (222) is located inside the movable cavity (121) and is sleeved with a spring (23).

2. The printing roller that is easy to clean according to claim 1, characterized in that: The outer wall of one end of the pressing block (21) is sharp, and the sharp end of the pressing block (21) extends to the outer wall of the threaded core column (12). The threaded core column (12) is provided with a through groove at a position corresponding to the sharp end, and a through hole is provided at a position where the threaded core column (12) contacts the clamping rod (222).

3. The printing roller that is easy to clean according to claim 1, characterized in that: The outer wall of the bottom end of the clamping rod (222) is fixedly sleeved with a limiting plate, and the outer walls at both ends of the spring (23) are in contact with the inner wall of the active cavity (121) and the upper surface of the limiting plate respectively.

4. The printing roller that is easy to clean according to claim 1, characterized in that: The outer wall of the threaded core column (12) is threadedly connected to a threaded buckle plate (4), one end of the roller shaft (1) away from the fixed component (2) is fixedly connected to a limiting ring (13), and the outer wall of the roller shaft (1) is provided with a first positioning groove (11).

5. The printing roller that is easy to clean according to claim 4, characterized in that: The outer wall of the first positioning groove (11) is slidably sleeved with a printing roller sleeve (3), and a matching second positioning groove (31) is provided at a position where the inner wall of the printing roller sleeve (3) contacts the first positioning groove (11).

6. The printing roller that is easy to clean according to claim 4, characterized in that: A hexagonal nut is fixed to the side of the threaded buckle plate (4) away from the fixing assembly (2), a corresponding thread groove is provided at the position where the inner wall of the threaded buckle plate (4) contacts the threaded core column (12), and the inner wall of the threaded buckle plate (4) at the corresponding position with the fixing assembly (2) is smooth.

7. The printing roller that is easy to clean according to claim 5, characterized in that: An annular flange (32) is fixedly connected to one end of the second positioning groove (31) close to the fixing assembly (2), and a clamping hole with matching size is provided at the position where the inner wall of the annular flange (32) contacts the clamping rod (222).

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