Polyurethane blade coating device

By designing a polyurethane coating device, and utilizing a combination of a fixed plate, a scraper, and a feeding mechanism, the problem of difficulty in controlling the scraper during the coating process was solved, and a uniform coating effect of polyurethane coating was achieved.

CN224114418UActive Publication Date: 2026-04-14FUJIAN HONGDA LEATHER IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN HONGDA LEATHER IND CO LTD
Filing Date
2025-03-27
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In the existing technology, the scraper is not easy to control when scraping polyurethane coatings, resulting in poor scraping effect.

Method used

A polyurethane coating device was designed, including a fixed plate, a scraper, a movable support, an open box, and a feeding mechanism. By combining an inclined plane and a heater, the distance between the scraper and the ground can be precisely controlled, and heat loss can be reduced by an insulation mechanism to improve the coating effect.

Benefits of technology

By combining the fixed plate and the movable support, stable control of the distance between the scraper and the ground is achieved, which improves the scraping effect of polyurethane coating and ensures uniform coating distribution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of blade coating, in particular to a polyurethane blade coating device which comprises a fixing plate, a scraper blade is fixedly connected to the fixing plate, an inclined plane is arranged at the bottom end of the scraper blade, movable supports are fixedly connected to the two sides of the bottom end of the fixing plate, an open box is fixedly connected to the scraper blade, and the open box is located between the scraper blade and the movable supports. The bottom end of the open box communicates with a discharging mechanism, the outlet end of the discharging mechanism is located below the inclined face, and a heater is connected into the open box. The fixed plate inclines towards the scraping plate, the fixed plate drives the scraping plate to move downwards by a certain distance after inclining, the distance between the bottom end of the inclined face and the ground is adjusted, and due to the fact that the bottom ends of the two movable supports make rolling contact with the ground, the fixed plate is stable in the moving process; and therefore, the distance between the bottom end of the scraper and the ground can be conveniently controlled through the fixing plate, and the blade coating effect is improved.
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Description

Technical Field

[0001] This utility model relates to the field of coating technology, and in particular to a polyurethane coating device. Background Technology

[0002] Polyurethane troweling is a construction process mainly used to evenly apply polyurethane materials (such as polyurethane waterproof coatings, polyurethane anti-corrosion coatings, polyurethane sealants, etc.) to a substrate to form a protective film or coating to achieve functions such as waterproofing, anti-corrosion, and sealing. This construction method uses a scraper, scraper, or other troweling tools to scrape the polyurethane material onto the surface to be treated. When using a scraper to apply polyurethane coating to the ground, it is inconvenient to control the scraper, thus reducing the troweling effect on the polyurethane coating. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies, such as the inconvenience in controlling the scraper, which reduces the scraping effect of the scraper on polyurethane coatings, and to propose a polyurethane scraping device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A polyurethane coating device is designed, including a fixed plate, on which a scraper is fixedly connected. The bottom end of the scraper has an inclined surface. Movable supports are fixedly connected to both sides of the bottom end of the fixed plate. An open box is fixedly connected to the scraper, and the open box is located between the scraper and the movable supports. The bottom end of the open box is connected to a feeding mechanism, and the outlet end of the feeding mechanism is located below the inclined surface. A heater is connected inside the open box.

[0006] Preferably, a handrail is fixedly connected to the upper end of the fixed plate, and an anti-slip sleeve is fitted onto the handrail. The anti-slip sleeve is a rubber sleeve.

[0007] Preferably, the feeding mechanism includes a connecting pipe, one end of which is connected to the bottom of the open box, a valve is fixedly connected to the connecting pipe, the other end of which is connected to a horizontal pipe, and a plurality of discharge pipes are connected at equal intervals along the length of the bottom of the horizontal pipe.

[0008] Preferably, one end of each of the discharge pipes is inclined toward the slope.

[0009] Preferably, the scraper is connected to a heat-insulating mechanism for reducing heat loss inside the open box. The heat-insulating mechanism includes a baffle. The scraper has a movable hole. The baffle is slidably connected to the movable hole. The lower surface of the baffle is in contact with the upper end of the open box. A driving member is connected to the scraper for moving the baffle in the horizontal direction.

[0010] Preferably, the driving component includes a connecting block, which is fixedly connected to the baffle. The connecting block has a threaded hole, and a threaded rod is rotatably connected to the scraper, the threaded rod engaging with the threaded hole.

[0011] The polyurethane coating device proposed in this utility model has the following advantages:

[0012] By tilting the fixed plate towards the scraper, the scraper moves downward a certain distance after the fixed plate tilts, adjusting the distance between the bottom of the inclined surface and the ground. Since the bottom of the two moving supports rolls in contact with the ground, the fixed plate moves smoothly, making it easier to control the distance between the bottom of the scraper and the ground through the fixed plate, thereby improving the scraping effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a polyurethane coating device proposed in this utility model. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the structure of a polyurethane coating device proposed in this utility model. Figure 2 ;

[0015] Figure 3 This is a cross-sectional structural schematic diagram of a polyurethane coating device proposed in this utility model;

[0016] Figure 4 This is a schematic diagram of the connection between the open box and the feeding mechanism in a polyurethane coating device proposed in this utility model.

[0017] In the diagram: 1. Fixed plate; 2. Scraper; 3. Inclined surface; 4. Moving support; 5. Handrail; 6. Open box; 7. Discharge mechanism; 8. Heater; 9. Insulation mechanism; 71. Connecting pipe; 72. Valve; 73. Horizontal pipe; 74. Discharge pipe; 91. Movable hole; 92. Baffle; 93. Connecting block; 94. Threaded rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Example 1: Refer to Figure 1-3A polyurethane coating device includes a fixed plate 1, a scraper 2 fixedly connected to the fixed plate 1, a slope 3 at the bottom end of the scraper 2, movable supports 4 fixedly connected to both sides of the bottom end of the fixed plate 1, a handrail 5 fixedly connected to the upper end of the fixed plate 1, an anti-slip sleeve (rubber sleeve) fitted onto the handrail 5, an open box 6 fixedly connected to the scraper 2, the open box 6 being located between the scraper 2 and the movable supports 4, a feeding mechanism 7 connected to the bottom end of the open box 6, the outlet end of the feeding mechanism 7 being located below the slope 3, and a heater 8 connected inside the open box 6.

[0020] Work process:

[0021] When the ground is being coated, the fixed plate 1 rolls into contact with the ground through two movable supports 4, and the polyurethane coating is introduced into the open box 6. After the heater 8 is powered on, it heats the polyurethane coating to prevent the polyurethane coating from curing.

[0022] Open the feeding mechanism 7, and the paint in the open box 6 is released from the feeding mechanism 7. The released paint falls on the ground below the inclined plane 3. Hold the handle 5, and the handle 5 will drive the fixed plate 1 to tilt towards the scraper 2. After the fixed plate 1 tilts, it will drive the scraper 2 to move downward a certain distance. Adjust the distance between the bottom end of the inclined plane 3 and the ground. When the fixed plate 1 drives the scraper 2 to scrape the polyurethane paint, the bottom ends of the two moving supports 4 roll in contact with the ground, making the fixed plate 1 move smoothly. This makes it easier to control the distance between the bottom end of the scraper 2 and the ground through the fixed plate 1, thereby improving the scraping effect.

[0023] Example 2: In Example 1, during the application of the polyurethane coating, the released polyurethane coating accumulated, which hindered the application by the scraper 2. (Refer to...) Figure 3-4 As another preferred embodiment of this utility model, the difference from embodiment 1 is that the feeding mechanism 7 includes a connecting pipe 71. One end of the connecting pipe 71 is connected to the bottom end of the open box 6. A valve 72 is fixedly connected to the connecting pipe 71. The other end of the connecting pipe 71 is connected to a horizontal pipe 73. The bottom end of the horizontal pipe 73 is connected to several discharge pipes 74 at equal intervals along the length direction. One end of each discharge pipe 74 is inclined towards the inclined plane 3. When feeding, the valve 72 is opened, and the polyurethane coating in the open box 6 passes through the connecting pipe 71 and enters the horizontal pipe 73. The coating in the horizontal pipe 73 is released from different discharge pipes 74, dispersing the polyurethane coating on the ground, avoiding the accumulation of polyurethane coating, and facilitating the scraping of the scraper 2.

[0024] Example 3: In Example 1, when heater 8 is activated to heat the polyurethane coating, heat is released from the opening of the open box 6, reducing the heating effect of heater 8. (Refer to...) Figure 2-3As another preferred embodiment of this utility model, the difference from embodiment 1 is that the scraper 2 is connected to a heat preservation mechanism 9 for reducing heat loss inside the open box 6. The heat preservation mechanism 9 includes a baffle 92, and the scraper 2 is provided with a movable hole 91. The baffle 92 is slidably connected to the movable hole 91. The lower surface of the baffle 92 is in contact with the upper end of the open box 6. A driving member for driving the baffle 92 to move in the horizontal direction is connected to the scraper 2.

[0025] The driving component includes a connecting block 93, which is fixedly connected to the baffle 92. The connecting block 93 has a threaded hole, and a threaded rod 94 is rotatably connected to the scraper 2. The threaded rod 94 cooperates with the threaded hole.

[0026] When the heater 8 heats the polyurethane coating, the threaded rod 94 is rotated. After the threaded rod 94 rotates, the connecting block 93 moves towards the scraper 2. The connecting block 93 drives the baffle 92 to move. After the baffle 92 moves a certain distance, it covers and seals the opening of the open box 6, reducing the release of heat inside the open box 6.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A polyurethane coating device, comprising a fixed plate (1), wherein a scraper (2) is fixedly connected to the fixed plate (1), characterized in that, in: The scraper (2) has a slope (3) at its bottom end. The fixed plate (1) has movable brackets (4) fixedly connected to both sides of its bottom end. An open box (6) is fixedly connected to the scraper (2). The open box (6) is located between the scraper (2) and the movable bracket (4). The bottom end of the open box (6) is connected to a feeding mechanism (7). The outlet end of the feeding mechanism (7) is located below the slope (3). A heater (8) is connected inside the open box (6).

2. The polyurethane coating apparatus according to claim 1, characterized in that, The upper end of the fixed plate (1) is fixedly connected to a handrail (5), and an anti-slip sleeve is fitted on the handrail (5). The anti-slip sleeve is a rubber sleeve.

3. The polyurethane coating apparatus according to claim 1, characterized in that, The feeding mechanism (7) includes a connecting pipe (71), one end of which is connected to the bottom end of the open box (6), a valve (72) is fixedly connected to the connecting pipe (71), and the other end of the connecting pipe (71) is connected to a horizontal pipe (73). The bottom end of the horizontal pipe (73) is connected to several discharge pipes (74) at equal intervals along the length direction.

4. The polyurethane coating apparatus according to claim 3, characterized in that, One end of each of the discharge pipes (74) is inclined toward the slope (3).

5. The polyurethane coating apparatus according to claim 1, characterized in that, The scraper (2) is connected to a heat preservation mechanism (9) for reducing heat loss inside the open box (6). The heat preservation mechanism (9) includes a baffle (92). The scraper (2) has a movable hole (91). The baffle (92) is slidably connected to the movable hole (91). The lower surface of the baffle (92) is in contact with the upper end of the open box (6). The scraper (2) is connected to a driving member for moving the baffle (92) in the horizontal direction.

6. The polyurethane coating apparatus according to claim 5, characterized in that, The driving component includes a connecting block (93), which is fixedly connected to the baffle (92). The connecting block (93) has a threaded hole, and a threaded rod (94) is rotatably connected to the scraper (2). The threaded rod (94) cooperates with the threaded hole.