Uniform coating device of sizing roller

Abstract

The utility model belongs to the technical field of coating equipment, and particularly relates to a sizing roller uniform coating device which comprises a support, two guide rollers, a sizing roller, an air cylinder, a pressing piece and two grouting units, the air cylinder is fixed on the support, the output end of the air cylinder is fixedly connected with the pressing piece, and the grouting units are arranged on the guide rollers. The grouting unit comprises a limiting block, a glue injection box body, two connecting rods and a material uniformizing roller, a first sliding groove is formed in one side of the limiting block, the pressing piece is in sliding connection with the limiting block, the glue injection box body is fixedly connected with the limiting block, one end of each connecting rod is connected with the glue injection box body, and the other end of each connecting rod is connected with the material uniformizing roller; a plurality of nozzles are arranged on one side, close to the gluing roller, of the glue injection box body. According to the device, the glue can be uniformly coated.

Description

Technical Field

[0001] The utility model belongs to the technical field of coating equipment, and in particular relates to a uniform coating device for a glue roller. Background Art

[0002] In existing papermaking technology, in order to enhance the surface properties of paper, a colloid for enhancement is usually evenly coated on the surface of the paper using a sizing roller, and then dried to form a layer of enhancement film on the surface of the paper.

[0003] However, since the colloidal raw materials are often viscous, uneven coating may occur during the sizing roller coating process, resulting in defective paper products, such as insufficient strength of the paper surface, affecting the product yield. Utility Model Content

[0004] The purpose of the present invention is to solve the problem of insufficient uniformity of coating of the sizing roller described in the above background technology, and proposes a new uniform coating device for the sizing roller, which can evenly coat the surface of paper.

[0005] The technical solution adopted to achieve the above-mentioned purpose is a glue roller uniform coating device, which includes a bracket, two guide rollers, a glue roller, a cylinder, a pressure sheet and two grouting units. The cylinder is fixed on the bracket, and the output end of the cylinder is fixedly connected to the pressure sheet. The grouting unit includes a limit block, a glue injection box, two connecting rods and a material leveling roller. A first slide groove is provided on one side of the limit block, the pressure sheet is slidably connected to the limit block, the glue injection box is fixedly connected to the limit block, one end of the connecting rod is connected to the glue injection box, and the other end of the connecting rod is connected to the material leveling roller. A plurality of nozzles are provided on the side of the glue injection box close to the glue roller.

[0006] In the above technical solution, the colloid is introduced into the direction of the sizing roller through the nozzle, and the cylinder presses the sheet down to control the distance between the sheet and the sizing roller, thereby controlling the coating thickness and evenly coating the colloid through the extrusion of the sheet.

[0007] Furthermore, the grouting unit also includes two elastic parts, each of the rotating shafts at both ends of the material leveling roller is provided with a bearing, a second slide groove is provided on the connecting rod, the bearing connecting rod is slidably connected, the elastic part is arranged in the second slide groove, and the two ends of the elastic part are respectively connected to the bearing and the inner wall of the second slide groove.

[0008] In the above technical solution, the elastic member squeezes the material leveling roller toward the glue roller, ensuring that the paper is tightly clamped between the two. The introduced colloid can remain on the paper, and the colloid is evenly coated on the paper surface through the rotation of the pressing sheet and the glue roller.

[0009] Furthermore, a scraper is provided at the bottom of the glue injection box, and one end of the scraper is in contact with the peripheral side of the material leveling roller.

[0010] In the above technical solution, the scraper can scrape off the colloid attached to the material leveling roller, and can also intercept part of the colloid and make it remain between the pressing sheet and the glue roller, so that the colloid is fully utilized.

[0011] Furthermore, the scraper is a metal shrapnel.

[0012] Furthermore, the two grouting units are symmetrically arranged on both sides of the sizing roller.

[0013] In the above technical solution, the symmetrical arrangement enables the colloid to be fully and evenly coated on the paper surface.

[0014] Furthermore, the two guide rollers are symmetrically arranged on both sides of the glue-applying roller, and the guide rollers and the glue-applying roller are rotatably connected to the bracket.

[0015] Furthermore, the sizing roller uniform coating device also includes a drainage platform and a material collection trough. The top of the drainage platform is an inclined structure with a high center and low edges, and the edge of the drainage platform is connected to the material collection trough.

[0016] In the above technical solution, the inclined drainage platform can be used to flow the excess colloid into the collecting trough for recycling.

[0017] Furthermore, the drainage platform is located directly below the glue roller.

[0018] Furthermore, the pressing sheet is arc-shaped and is located directly above the glue roller.

[0019] In the above technical solution, this setting enables the pressing sheet and the sizing roller to fit completely together, so that the coating thickness on the paper surface is consistent.

[0020] Furthermore, a baffle is provided on both sides of the pressing sheet, and the two baffles are in contact with both sides of the glue roller respectively.

[0021] In the above technical solution, the baffle can trap the colloid between the material leveling roller, the glue application roller and the pressing plate, and the pressing plate is used to evenly coat the colloid between the material leveling roller and the glue application roller on the paper surface.

[0022] The advantages of the present invention are:

[0023] 1. The utility model uses the coordination among the material leveling roller, the glue roller and the pressing plate to trap the colloid between the three, so that the colloid is evenly coated on the paper surface.

[0024] 2. The utility model can drive the pressing plate to move up and down through the cylinder, thereby controlling the thickness of the colloid layer coated on the paper surface.

[0025] 3. The utility model can guide the excess colloid into the aggregate trough for recycling through the drainage table with an inclined angle structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0027] Figure 1 This is a schematic structural diagram of the uniform coating device using a sizing roller according to the present invention;

[0028] Figure 2 This is a schematic structural diagram of the grouting unit of the utility model;

[0029] Figure 3 This is a structural diagram of the baffle of the utility model.

[0030] Illustrations: 1. Bracket, 2. Guide roller, 3. Glue roller, 4. Cylinder, 5. Pressing sheet, 6. Grouting unit, 7. Drainage table, 8. Collecting trough, 601. Limit block, 602. Glue injection box, 603. Connecting rod, 604. Material leveling roller, 605. First chute, 606. Nozzle, 607. Elastic part, 608. Bearing, 609. Second chute, 610. Scraper, 611. Baffle. DETAILED DESCRIPTION

[0031] In order to enable people in this technical field to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only an embodiment of a part of the utility model rather than all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0032] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] like Figure 1 As shown, a sizing roller uniform coating device includes a bracket 1, two guide rollers 2, a sizing roller 3, a cylinder 4, a pressing sheet 5 and two grouting units 6. The cylinder is fixed under the top wall of the bracket, and the output end of the cylinder is fixedly connected to the pressing sheet.

[0034] like Figure 2 As shown, the grouting unit includes a limit block 601, a glue injection box 602, two connecting rods 603 and a material leveling roller 604. A first slide groove 605 is provided on the right side of the limit block. One end of the pressing sheet extends into the first slide groove and slides with the limit block. The glue injection box is fixed to the bottom of the limit block. One end of the connecting rod is fixedly connected to the glue injection box, and the other end of the connecting rod is connected to the material leveling roller. A number of nozzles 606 are provided on the side of the glue injection box close to the glue roller.

[0035] In one embodiment, the grouting unit is further provided with two springs 607, and a bearing 608 is provided on each of the rotating shafts at both ends of the material-leveling roller. The material-leveling roller is rotatably connected to the bearing, and a second slide groove 609 is provided on the connecting rod. The bearing is arranged in the second slide groove and is slidably connected to the connecting rod. The spring is arranged in the second slide groove, and the left end of the spring is fixedly connected to the left end of the second slide groove, and the right end of the spring is fixedly connected to the bearing.

[0036] In one embodiment, a scraper 610 is provided at the bottom right side of the glue injection box, and the scraper is in contact with the circumference of the material leveling roller.

[0037] In one embodiment, the scraper is made of metal spring material.

[0038] In one embodiment, the two grouting units are symmetrically arranged on the left and right sides of the sizing roller, and the limit block is fixedly connected to the bracket.

[0039] In one embodiment, two guide rollers are symmetrically arranged on the left and right sides of the glue application roller, and the guide rollers and the glue application roller are rotatably connected to the bracket.

[0040] In one embodiment, the glue roller uniform coating device is further provided with a drainage platform 7 and a collection trough 8. The top of the drainage platform is similar to a roof shape, and is an inclined structure with a high center and low edges. The edge of the drainage platform is connected to the notch of the collection trough.

[0041] In one embodiment, the guide table is located directly below the sizing roller.

[0042] In one embodiment, the pressing sheet is arc-shaped and is located directly above the glue roller. The pressing sheet can completely fit with the glue roller.

[0043] In one embodiment, a baffle 611 is provided on both the front and rear sides of the pressing sheet. The baffle has a shape such as Figure 3As shown, the two baffles can contact the front and rear sides of the glue roller respectively.

[0044] The working principle and process of this utility model:

[0045] The paper to be coated passes through the left guide roller, the left sizing roller, the glue roller, the right sizing roller and the right guide roller in sequence. The glue injection box sprays the glue onto the paper surface through the nozzle. The cylinder can drive the pressing sheet to press down to adjust the required coating thickness, and squeeze the glue to spread it evenly. The rotation of the glue roller drives the paper forward to complete the coating work.

[0046] Finally, it should be noted that the present embodiment is intended only to illustrate the present invention and does not limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

Claims

1. A sizing roller uniform coating device, characterized in that: The glue roller uniform coating device comprises a bracket (1), two guide rollers (2), a glue roller (3), a cylinder (4), a pressing sheet (5) and two grouting units (6), wherein the cylinder is fixed on the bracket, and the output end of the cylinder is fixedly connected to the pressing sheet. The grouting unit comprises a limit block (601), a glue injection box (602), two connecting rods (603) and a material leveling roller (604), wherein a first sliding groove (605) is provided on one side of the limit block, the pressing sheet is slidably connected to the limit block, the glue injection box is fixedly connected to the limit block, one end of the connecting rod is connected to the glue injection box, and the other end of the connecting rod is connected to the material leveling roller, and a plurality of nozzles (606) are provided on the side of the glue injection box close to the glue roller.

2. The sizing roller uniform coating device according to claim 1, characterized in that: The grouting unit further comprises two elastic members (607), a bearing (608) is provided on each of the rotating shafts at both ends of the material leveling roller, a second slide groove (609) is provided on the connecting rod, the bearing connecting rod is slidably connected, the elastic member is arranged in the second slide groove, and the two ends of the elastic member are respectively connected to the bearing and the inner wall of the second slide groove.

3. The sizing roller uniform coating device according to claim 1, characterized in that: A scraper (610) is provided at the bottom of the glue injection box, and one end of the scraper is in contact with the peripheral side of the material leveling roller.

4. The sizing roller uniform coating device according to claim 3, characterized in that: The scraper is a metal shrapnel.

5. The sizing roller uniform coating device according to claim 1, characterized in that: The two grouting units are symmetrically arranged on both sides of the glue roller.

6. The sizing roller uniform coating device according to claim 1, characterized in that: The two guide rollers are symmetrically arranged on both sides of the glue-applying roller, and the guide rollers and the glue-applying roller are rotatably connected to the bracket.

7. The sizing roller uniform coating device according to claim 6, characterized in that: The glue roller uniform coating device further comprises a drainage platform (7) and a material collecting trough (8); the top of the drainage platform is an inclined structure with a high center and low edges; the edge of the drainage platform is connected to the material collecting trough.

8. The sizing roller uniform coating device according to claim 7, characterized in that: The drainage platform is located just below the glue roller.

9. The sizing roller uniform coating device according to claim 1, characterized in that: The pressing sheet is arc-shaped and is located just above the glue roller.

10. The sizing roller uniform coating device according to claim 1, characterized in that: A baffle (611) is provided on both sides of the pressing sheet, and the two baffles are in contact with both sides of the glue roller respectively.

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