A coiled material coating device

By designing a U-shaped base plate, electric telescopic rod, and guide slide bar for the roll coating device, combined with a drive motor and sprocket system, the problem of paint residue in the paint box was solved, achieving efficient paint utilization and energy-saving coating.

CN224463050UActive Publication Date: 2026-07-07GUANGDONG BAIPENG IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG BAIPENG IND CO LTD
Filing Date
2025-08-06
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

In the existing coating roller process, the paint in the paint box cannot be completely applied to the aluminum plate, resulting in paint residue in the paint box after each coating job and causing paint waste.

Method used

A roll coating device is used, including a mounting shell, a paint box, a coating roller and a pressing roller. The paint is collected by a U-shaped base plate, and guided by an electric telescopic rod and a guide slide rod to ensure stable movement of the paint box. The uniform rotation of the coating roller is achieved by a drive motor and a sprocket system, reducing paint residue.

Benefits of technology

It effectively reduces paint residue in the paint box, improves paint utilization, and achieves energy-saving coating results.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224463050U_ABST
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Abstract

The utility model discloses a kind of coiled material surface coating devices, belong to aluminium material roll coating technical field, the device includes installation shell, support leg, roll, coating box, coating roller, pressing roller and U-shaped bottom plate, by U-shaped bottom plate can make coating gather to center, to make coating roller can dip more coating in coating box inside when rotating, can reduce the residual coating in coating box inside, when adding coating to coating box inside, make coating lower than the inside bottom of notch groove, after coating is reduced in coating box inside after coating roller rotates and dips coating, at this time, electric telescopic rod is started to elongate, make coating box move upwards, the rotating shaft of coating roller both sides is inserted into the inside of notch groove, to make coating roller continue to dip coating residual in the center bottom of U-shaped bottom plate, can further reduce the residual coating in coating box inside.
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Description

Technical Field

[0001] This utility model belongs to the field of aluminum roller coating technology, specifically, it relates to a coil coating device. Background Technology

[0002] With the increasing use of aluminum composite panels, the production volume of color-coated aluminum coils has also increased. The most crucial step in the production of color-coated aluminum coils is coating them, covering their surface with a protective coating to improve the aluminum's weather resistance and aesthetics. During the production of color-coated aluminum coils, coating is primarily carried out using coating rollers, which are required to apply the coating evenly across the entire width of the aluminum surface.

[0003] Chinese utility model patent CN214766520U discloses a coating roller assembly for aluminum coils. Based on the width of the aluminum coil, a turntable rotates, driving a gear to rotate. The gear meshes with the teeth, causing a guide rod to move along guide holes one and two towards each other. The guide rod then drives a square rod to move along a round rod towards each other. The square rod drives a connecting rod towards each other, and the connecting rod drives a scraper towards each other. When the scraper reaches the appropriate position, the turntable stops rotating, and the scraper scrapes off excess coating from the coating roller. The scraped coating falls into a tank, ensuring that the coating roller has the same width as the aluminum coil during coating.

[0004] Although the coating roller can adjust the coating width according to the width of the aluminum plate, the paint in the paint box cannot be completely applied to the aluminum plate by the coating roller. As a result, a small amount of paint will remain in the paint box after each coating operation, causing paint waste. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] To address the problem mentioned in the background art that although the coating roller can adjust the coating width according to the width of the aluminum plate, the paint in the paint box cannot be completely applied to the aluminum plate by the coating roller, resulting in a small amount of paint remaining in the paint box after each coating operation, causing paint waste, the present invention adopts the following technical solution.

[0007] A roll coating device includes a mounting housing, with support legs detachably connected to the four bottom corners of the mounting housing, upper and lower opposing rollers arranged on one side of the inner side of the mounting housing, a paint box arranged at the bottom inner side of the mounting housing, a coating roller rotatably connected to the mounting housing above the paint box, a pressure roller rotatably connected to the inner wall of the mounting housing above the coating roller, and a U-shaped base plate fixedly connected to the bottom inner side of the paint box.

[0008] Preferably, an electric telescopic rod is detachably connected to the bottom of the mounting housing, and the telescopic end of the electric telescopic rod passes through the bottom of the mounting housing and is detachably connected to the bottom of the paint box.

[0009] Preferably, the paint box has notched grooves on both outer walls near the rotating shaft of the coating roller.

[0010] Preferably, connecting lugs are fixedly connected to the outer walls of both sides of the paint box near the bottom, and guide slide rods are fixedly connected to both sides of the bottom inner side of the mounting housing. The connecting lugs on both sides are slidably connected to the outer walls of the guide slide rods, and limit blocks are detachably connected to the top of the guide slide rods on both sides.

[0011] Preferably, a drive motor is detachably connected to one side of the outer wall of the housing, and the rotating end of the drive motor is detachably connected to one end of the coating roller.

[0012] Preferably, the other end of the coating roller is fixedly connected to a rotating shaft that extends through the mounting housing. A first sprocket is detachably connected to the outer wall of the rotating shaft. Both ends of the rolling roller are fixedly connected to drive shafts that extend through the mounting housing. Meshing gears that mesh with each other are detachably connected to the two drive shafts near the drive motor. A second sprocket is detachably connected to the end of the drive shaft on the meshing gear below the first sprocket. A chain is sleeved on the outer wall of the second sprocket and the first sprocket.

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

[0014] 1. The U-shaped base plate allows the paint to converge towards the center, enabling the coating roller to pick up more paint from the paint box as it rotates, thus reducing paint residue inside the paint box.

[0015] 2. When adding paint into the paint box, ensure that the paint level is below the bottom of the notch. As the coating roller rotates and picks up paint, the amount of paint inside the paint box decreases. At this point, activate the electric telescopic rod to extend, causing the paint box to move upward. The rotating shafts on both sides of the coating roller insert into the notch, allowing the coating roller to continue picking up the paint remaining at the bottom center of the U-shaped base plate, further reducing the amount of paint remaining inside the paint box.

[0016] 3. By connecting the lugs to slide on the outer wall of the guide slide, the up and down movement of the paint box can be guided, making the up and down movement of the paint box more stable and preventing deviation, so that the notch can always be aligned with the rotating shaft on the coating roller.

[0017] 4. The rotation of the drive motor drives the coating roller to rotate, which in turn causes the first sprocket to rotate. The first sprocket, through the cooperation of the chain and the second sprocket, causes the meshing gear below to rotate. Through the meshing of the meshing gears on both sides, the upper pressing roller rotates in the opposite direction. This achieves the purpose of driving the coating roller and the two pressing rollers on both sides to rotate through a drive motor, thus achieving the effect of energy saving. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a roll coating device according to the present invention;

[0019] Figure 2 This is a schematic diagram of the linkage component structure in this utility model;

[0020] Figure 3 This is a schematic diagram of the paint box structure in this utility model;

[0021] Figure 4 This is a schematic diagram of the electric telescopic rod structure in this utility model;

[0022] The correspondence between the labels and component names in the attached figures is as follows:

[0023] 100. Housing assembly; 101. Support leg; 102. Roller roller; 103. Meshing gear; 104. Drive motor; 105. Coating roller; 106. Pressing roller; 107. First sprocket; 108. Second sprocket; 109. Chain;

[0024] 200. Paint box; 201. U-shaped base plate; 202. Notch groove; 203. Connecting lug; 204. Guide slide rod; 205. Limiting block; 206. Electric telescopic rod. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0028] like Figure 1 The diagram shows a preferred embodiment of a roll coating device of the present invention. The roll coating device of this embodiment includes a mounting housing 100. Support legs 101 are detachably connected to the four corners of the bottom of the mounting housing 100. An opposing roller 102 is arranged on one side of the inner side of the mounting housing 100. A paint box 200 is arranged at the bottom inner side of the mounting housing 100. A coating roller 105 is rotatably connected above the paint box 200 on the mounting housing 100. A pressure roller 106 is rotatably connected to the inner wall of the mounting housing 100 above the coating roller 105. In this embodiment, the aluminum plate can be flattened by the opposite rotation of the rollers 102 on both sides. The rotation of the coating roller 105 presses the paint roller inside the paint box 200 against the outer wall of the aluminum plate. The pressure roller 106 limits the upper part of the aluminum plate. After rolling, the plate is dried in a dryer and then wound up.

[0029] like Figure 1 as well as Figure 2 As shown, this is a schematic diagram of the power assembly structure in this embodiment. A drive motor 104 is detachably connected to one outer wall of the mounting housing 100. The rotating end of the drive motor 104 is detachably connected to one end of the coating roller 105. The other end of the coating roller 105 is fixedly connected to a rotating shaft that extends out of the mounting housing 100. A first sprocket 107 is detachably connected to the outer wall of the rotating shaft. Both ends of the rolling roller 102 are fixedly connected to drive shafts that extend out of the mounting housing 100. Meshing gears 103 are detachably connected to two drive shafts near the drive motor 104. The meshing gear 103 is located below the first sprocket 107. The end of the drive shaft is detachably connected to a second sprocket 108. A chain 109 is sleeved on the outer wall of the second sprocket 108 and the first sprocket 107. In this embodiment, the rotation of the drive motor 104 drives the coating roller 105 to rotate, which in turn causes the first sprocket 107 to rotate. The first sprocket 107, through the cooperation of the chain 109 and the second sprocket 108, causes the meshing gear 103 below to rotate. Through the meshing of the meshing gears 103 on both sides, the upper pressing roller 102 rotates in the opposite direction. Thus, the purpose of driving the coating roller 105 and the pressing rollers on both sides to rotate through a drive motor 104 is achieved, thereby achieving the effect of energy saving.

[0030] like Figure 3As shown, it is a schematic diagram of the paint box structure in this embodiment. A U-shaped base plate 201 is fixedly connected to the inner bottom of the paint box 200. In this embodiment, the paint can be gathered towards the center through the U-shaped base plate 201, so that the coating roller 105 can pick up more paint inside the paint box 200 when rotating, thereby reducing the paint residue inside the paint box 200.

[0031] like Figure 3 as well as Figure 4 As shown, this is a schematic diagram of the electric telescopic rod structure in this embodiment. The bottom of the mounting housing 100 is detachably connected to the electric telescopic rod 206. The telescopic end of the electric telescopic rod 206 passes through the bottom of the mounting housing 100 and is detachably connected to the bottom of the paint box 200. The paint box 200 has notches 202 on both outer walls near the rotating shaft of the coating roller 105. In this embodiment, when paint is added into the paint box 200, the paint is made to be lower than the inner bottom of the notch 202. As the coating roller 105 rotates and picks up paint, the amount of paint inside the paint box 200 decreases. At this time, the electric telescopic rod 206 is activated to extend, causing the paint box 200 to move upward. The rotating shafts on both sides of the coating roller 105 are inserted into the notch 202, thereby enabling the coating roller 105 to continue to pick up the paint remaining at the center bottom of the U-shaped base plate 201, which can further reduce the amount of paint remaining inside the paint box 200.

[0032] like Figure 3 As shown, in order to make the paint box 200 more stable when moving up and down, in this embodiment, connecting lugs 203 are fixedly connected to the outer walls of both sides of the paint box 200 near the bottom, and guide slide rods 204 are fixedly connected to both sides of the bottom of the inner side of the mounting shell 100. The connecting lugs 203 on both sides are slidably connected to the outer walls of the guide slide rods 204, and the top of the guide slide rods 204 on both sides is detachably connected to the limit block 205. In this embodiment, by sliding the connecting lugs 203 on the outer walls of the guide slide rods 204, the up and down movement of the paint box 200 can be guided, making the up and down movement of the paint box 200 more stable and preventing deviation, so that the notch 202 can always be aligned with the rotating shaft on the coating roller 105.

[0033] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A roll coating apparatus, comprising a mounting housing (100), support legs (101) detachably connected to the four corners of the bottom of the mounting housing (100), a pressing roller (102) arranged vertically opposite to each other on one side of the inner side of the mounting housing (100), a paint box (200) arranged at the bottom inner side of the mounting housing (100), a coating roller (105) rotatably connected above the paint box (200) of the mounting housing (100), and a pressure roller (106) rotatably connected to the inner wall of the mounting housing (100) above the coating roller (105), characterized in that, A U-shaped base plate (201) is fixedly connected to the bottom inside of the paint box (200).

2. The roll coating apparatus according to claim 1, characterized in that, An electric telescopic rod (206) is detachably connected to the bottom of the mounting housing (100). The telescopic end of the electric telescopic rod (206) passes through the bottom of the mounting housing (100) and is detachably connected to the bottom of the paint box (200).

3. The roll coating apparatus according to claim 2, characterized in that, The paint box (200) has notched grooves (202) on both outer walls near the rotating shaft of the coating roller (105).

4. The roll coating apparatus according to claim 3, characterized in that, The paint box (200) has connecting lugs (203) fixedly connected to the outer walls near the bottom on both sides. The inner bottom of the housing (100) has guide slide rods (204) fixedly connected to both sides. The connecting lugs (203) on both sides are slidably connected to the outer walls of the guide slide rods (204). The top of the guide slide rods (204) on both sides is detachably connected to a limit block (205).

5. The roll coating apparatus according to claim 4, characterized in that, A drive motor (104) is detachably connected to one side of the outer wall of the mounting housing (100), and the rotating end of the drive motor (104) is detachably connected to one end of the coating roller (105).

6. The roll coating apparatus according to claim 5, characterized in that, The other end of the coating roller (105) is fixedly connected to a rotating shaft that passes through the mounting housing (100). The outer wall of the rotating shaft is detachably connected to a first sprocket (107). Both ends of the rolling roller (102) are fixedly connected to a drive shaft that passes through the mounting housing (100). Two drive shafts near the drive motor (104) are detachably connected to meshing gears (103). The end of the drive shaft on the meshing gear (103) below the first sprocket (107) is detachably connected to a second sprocket (108). A chain (109) is sleeved on the outer wall of the second sprocket (108) and the first sprocket (107).