A uniform roll coating nip roller

Abstract

The utility model relates to a coating equipment technical field, concretely relates to a material pressing roller of even roll coating, the utility model provides a material pressing roller of even roll coating, including roller body, pivot and end cap, the roller body is hollow structure, is equipped with spiral flow guide groove in the inside of roller body, is equipped with a plurality of liquid outlet holes of penetrating roller body surface at spiral flow guide groove, the both ends of roller body are buckled with end cap, and the roller body is fixedly connected with pivot through end cap, the outside of roller body is equipped with a plurality of inserting groove equidistance, and the brush sleeve is inserted and fixed in inserting groove, the end cap is composed of fixed lid and movable cover, the fixed lid is fixedly connected with pivot, and is equipped with the feed port of inside intercommunication of roller body on fixed lid.

Description

Technical Field

[0001] This utility model relates to the field of coating equipment technology, specifically to a pressure roller for uniform coating. Background Technology

[0002] A coating roller is a tool widely used in coating, printing, and laminating industries, primarily for uniformly applying liquid materials such as paints and adhesives to a target surface. Traditional coating rollers typically employ a sponge, felt, or ordinary brush structure, achieving coating through immersion or internal liquid storage.

[0003] Existing pressure rollers with internal liquid storage have uneven internal liquid flow during use, resulting in unstable output, paint accumulation in some areas, and insufficient paint in others, leading to inconsistent coating thickness. Secondly, the paint inside the roller has poor fluidity, which easily clogs the discharge hole and affects the coating effect. In addition, the brush sleeve and the roller body are mostly integrated structures, and the entire brush sleeve needs to be replaced after wear, which is inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide a pressure roller for uniform coating, so as to solve the problems of uneven coating distribution, easy clogging of the discharge hole, and inconsistency in replacing the brush sleeve in the prior art.

[0005] The present invention provides a uniform coating pressure roller, comprising a roller body, a rotating shaft, and end caps. The roller body is a hollow structure with a spiral guide groove inside. Multiple liquid outlet holes penetrating the surface of the roller body are located within the spiral guide groove. Both ends of the roller body are fastened to the end caps, and the roller body is fixedly connected to the rotating shaft via the end caps. Multiple insertion slots are equidistantly arranged on the outer side of the roller body, and brush sleeves are inserted and fixed within these slots. The end caps consist of a fixed cap and a movable cap. The fixed cap is fixedly connected to the rotating shaft, and the fixed cap has a feed inlet communicating with the interior of the roller body.

[0006] As a preferred embodiment of this utility model, the spiral angle of the spiral guide groove is 5° to 15°, and the distance between adjacent guide grooves is 1 / 8 to 1 / 6 of the length of the roller.

[0007] As a preferred technical solution of this utility model, the outer side of the rotating shaft is provided with an extension block inside the drum body to reduce the internal volume of the drum body. A protruding sealing block is provided at the connection between the extension block and the movable cover, and a first sealing ring is provided between the sealing block and the movable cover.

[0008] As a preferred embodiment of this utility model, the length of the extension block is greater than the length of the roller body, and a corresponding connecting ring is provided on the outer side of the movable cover at the extension block. The connecting ring is fixedly connected to the extension block by screws.

[0009] As a preferred technical solution of this utility model, a stepped sealing platform is provided at the fastening point between the end cover and the roller body. The sealing platform is a concave structure as a whole, and a second sealing ring is provided in the middle.

[0010] In a preferred embodiment of this invention, the inner side of the brush sleeve is provided with a plug-in block corresponding to the plug-in groove; the diameter of the brush sleeve after being fitted onto the roller body is larger than the diameter of the end cap; and the bristle density of the brush sleeve is 50-100 bristles / cm². 2 The bristle length is 5-15mm, and the bristle material is nylon or polyester fiber.

[0011] The advantages of this utility model compared with the prior art are as follows:

[0012] 1. This pressure roller optimizes the paint flow path through its internal spiral guide groove structure, and with evenly distributed liquid outlet holes, it ensures uniform paint seepage and avoids accumulation or insufficient flow.

[0013] 2. This pressure roller adopts a multi-seal structure consisting of a stepped sealing platform, sealing block, first sealing ring, and second sealing ring, which effectively prevents paint leakage and improves equipment reliability.

[0014] 3. The design of the insertion groove and insertion block of this pressure roller ensures that the brush sleeve is firmly installed and not easy to fall off, thus making it convenient to replace the brush sleeve. Attached Figure Description

[0015] Figure 1 This is a structural diagram of a pressure roller for uniform coating according to the present invention.

[0016] Figure 2 This is a cross-sectional three-dimensional structural diagram of a uniform coating roller according to the present invention.

[0017] Figure 3 This is an enlarged view of section A of the pressure roller for uniform coating according to this utility model.

[0018] Figure 4 This is an exploded view of the pressure roller for uniform coating according to this utility model.

[0019] As shown in the figure:

[0020] 1. Drum body; 2. Rotating shaft; 3. End cover; 4. Insertion groove; 5. Brush sleeve; 6. Fixed cover; 7. Movable cover; 8. Feed inlet; 9. Spiral guide groove; 10. Liquid outlet; 11. Extension block; 12. Sealing block; 13. First sealing ring; 14. Connecting ring; 15. Screw; 16. Sealing platform; 17. Second sealing ring; 18. Insertion block. Detailed Implementation

[0021] 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.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example 1:

[0024] As per the instruction manual Figures 1-4 As shown, a uniform coating roller includes a roller body 1, a rotating shaft 2, and an end cap 3.

[0025] In this utility model, the roller body 1 is a hollow structure. The inside of the roller body 1 is provided with a spiral guide groove 9. The spiral guide groove 9 is provided with a plurality of liquid outlet holes 10 that penetrate the surface of the roller body 1. The spiral angle of the spiral guide groove 9 is 5°. The distance between adjacent guide grooves is 1 / 6 of the length of the roller. The two ends of the roller body 1 are fastened to the end cap 3.

[0026] In this utility model, the roller body 1 is fixedly connected to the rotating shaft 2 via the end cap 3. An extension block 11 is provided on the outside of the rotating shaft 2 inside the roller body 1 to reduce the internal volume of the roller body. A protruding sealing block 12 is provided at the connection between the extension block 11 and the movable cover 7. A first sealing ring 13 is provided between the sealing block 12 and the movable cover 7. The length of the extension block 11 is greater than the length of the roller body 1. A corresponding connecting ring 14 is provided on the outside of the movable cover 7 at the extension block 11. The connecting ring 14 is fixedly connected to the extension block 11 by screws 15.

[0027] In this utility model, a plurality of insertion slots 4 are provided at equal intervals on the outer side of the roller body 1. A brush sleeve 5 is inserted and fixed in the insertion slot 4. The inner side of the brush sleeve 5 is provided with an insertion block 18 corresponding to the insertion slot 4. The diameter of the brush sleeve 5 after being sleeved on the roller body 1 is larger than the diameter of the end cap 3. The bristle density of the brush sleeve 5 is 75 bristles / cm. 2 The bristles are 8mm long and made of nylon or polyester fiber.

[0028] In this utility model, the end cover 3 is composed of a fixed cover 6 and a movable cover 7. The fixed cover 6 is fixedly connected to the rotating shaft 2, and the fixed cover 6 is provided with a feed port 8 that communicates with the inside of the roller body 1. The end cover 3 and the roller body 1 are provided with a stepped sealing platform 16 at the fastening point. The sealing platform 16 is a concave structure as a whole, and a second sealing ring 17 is provided in the middle.

[0029] In a specific implementation of this utility model, the two ends of the roller body 1 are fastened to the end cover 3 and sealed by the sealing platform 16 and the second sealing ring 17. Then, the movable cover 7 is fixed to the extension block 11 by screws 15 to complete the assembly of the roller.

[0030] The paint enters the inside of the drum through the feed port 8, is evenly distributed under the action of the spiral guide groove 9, and seeps out to the brush sleeve 5 through the liquid outlet 10; when the drum rolls, the brush sleeve 5 evenly coats the paint on the target surface, and the spiral guide structure ensures a continuous and stable supply of paint, avoiding blockage or uneven distribution.

[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A uniform coating roller, characterized in that: Includes the roller body, shaft, and end caps; The drum body is a hollow structure, and a spiral guide groove is provided inside the drum body. Multiple liquid outlet holes are provided in the spiral guide groove that penetrate the surface of the drum body. The two ends of the drum body are fastened to the end caps, and the drum body is fixedly connected to the rotating shaft through the end caps. The outer side of the roller body is provided with multiple insertion slots at equal intervals, and a brush sleeve is inserted and fixed in the insertion slots. The end cover consists of a fixed cover and a movable cover. The fixed cover is fixedly connected to the rotating shaft, and the fixed cover is provided with a feed port that communicates with the inside of the roller body.

2. The pressure roller for uniform coating according to claim 1, characterized in that: The spiral angle of the spiral guide groove is 5° to 15°, and the distance between adjacent guide grooves is 1 / 8 to 1 / 6 of the length of the roller.

3. The pressure roller for uniform coating according to claim 1, characterized in that: An extension block is provided on the outer side of the rotating shaft inside the drum body to reduce the internal volume of the drum body. A protruding sealing block is provided at the connection between the extension block and the movable cover, and a first sealing ring is provided between the sealing block and the movable cover.

4. The pressure roller for uniform coating according to claim 3, characterized in that: The length of the extension block is greater than the length of the roller body, and a corresponding connecting ring is provided on the outer side of the movable cover at the extension block. The connecting ring is fixedly connected to the extension block by screws.

5. The pressure roller for uniform coating according to claim 1, characterized in that: The end cap and the roller body are fitted with a stepped sealing platform. The sealing platform is concave in shape and has a second sealing ring in the middle.

6. The pressure roller for uniform coating according to claim 1, characterized in that: The inner side of the brush sleeve is provided with a plug-in block corresponding to the plug-in groove. The diameter of the brush sleeve after being fitted onto the roller body is larger than the diameter of the end cap. The bristle density of the brush sleeve is 50-100 bristles / cm. 2 The bristle length is 5-15mm, and the bristle material is nylon or polyester fiber.

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