Fireproof plate material edge coating system with uniform liquid supplement

Abstract

The utility model discloses a kind of fireproof board material edge painting systems of uniform liquid supplementing, including spray head assembly, oil supply pump, oil storage tank and paint circulating liquid supplementing container, oil storage tank is equipped with oil storage tank oil outlet interface, the input end of the output end of oil supply pump is connected with the input end of spray head assembly, the input end of oil supply pump is connected with the oil outlet interface of oil storage tank, wherein, paint circulating liquid supplementing container is correspondingly arranged at the outside of oil storage tank, the outside of paint circulating liquid supplementing container is equipped with liquid supplementing pump, oil storage tank is equipped with oil storage tank liquid supplementing interface, the output end of liquid supplementing pump is connected with the liquid supplementing interface of oil storage tank by liquid supplementing pipe, the input end of liquid supplementing pump is connected with paint circulating liquid supplementing container by liquid pumping pipe, oil storage tank is correspondingly equipped with oil storage tank stirring device. The fireproof board material edge painting system of the utility model is conducive to the uniform paint coating of plate side, so as to be conducive to the stable quality of plate coating.

Description

Technical Field

[0001] This utility model relates to the field of edge coating equipment for sheet metal, specifically to a fireproof sheet metal edge coating system with uniform liquid replenishment. Background Technology

[0002] Currently, edge coating equipment for sheet materials typically uses UV paint. Therefore, after the UV paint is sprayed onto the side of the sheet material by the spray nozzle, UV curing is required. This can be referenced in Chinese Invention Patent Publication No. CN110548662B, "An Edge Coating Sanding Machine." However, the fire resistance of cured UV paint is poor. When producing sheets with better fire resistance, fire-retardant paint needs to be applied to the sides of the sheet material. The edge coating equipment then dries the fire-retardant paint. The fire-retardant paint contains a thinner, which evaporates and is lost during paint circulation, resulting in insufficient thinner content in the circulating paint. This affects paint circulation and delivery, impacting the effectiveness of the fire-retardant paint application to the side of the sheet material and hindering the improvement of sheet material quality. To address this, Chinese Invention Patent Application Publication No. CN120133031A discloses "A Fire-Resistant Sheet Edge Coating System and Paint Adjustment Method," which includes edge coating equipment for sheet materials. The aforementioned fireproof board edge coating system includes a paint circulation replenishment container and a nozzle. The nozzle has a replenishment hole, the lower end of which is connected to the upper oil outlet. The upper oil passage of the replenishment hole is connected to the paint circulation replenishment container. The thinner in the paint circulation replenishment container can flow into the replenishment hole and then into the upper oil outlet. The thinner, along with the paint supplied by the oil pump to the upper oil outlet, is sprayed out through the upper spray tank and then sucked into the upper end of the return port. However, this results in the paint sprayed from the upper spray tank containing relatively more thinner, while the paint sprayed from the lower, left, and right spray tanks contains relatively less thinner. Inevitably, a small amount of paint sprayed from the upper spray tank will flow down (or splash) onto the upper edge of the board side. This leads to uneven replenishment of thinner for the paint coated on the board side, which is not conducive to the stability of the board coating quality. Therefore, the aforementioned thinner replenishment structure needs to be improved. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a uniform liquid replenishment system for fireproof board edge coating, which is beneficial to the stability of board coating quality.

[0004] The objective of this utility model is achieved through the following technical solution.

[0005] This utility model discloses a uniformly replenished fireproof board coating system, comprising a nozzle assembly, an oil supply pump, an oil tank, and a paint circulation replenishment container. The oil tank is provided with an oil tank outlet port. The output end of the oil supply pump is connected to the input end of the nozzle assembly, and the input end of the oil supply pump is connected to the oil tank outlet port. The paint circulation replenishment container is correspondingly located on the outside of the oil tank, and a replenishment pump is provided on the outside of the paint circulation replenishment container. The oil tank is provided with an oil tank replenishment port. The output end of the replenishment pump is connected to the oil tank replenishment port through a replenishment pipe, and the input end of the replenishment pump is connected to the paint circulation replenishment container through a suction pipe. The oil tank is correspondingly provided with an oil tank stirring device.

[0006] Preferably, a liquid level sensor is provided at the lower part of the paint circulation replenishment container.

[0007] Preferably, the replenishment tube is equipped with a flow sensor.

[0008] Preferably, the replenishment pump is a peristaltic pump.

[0009] Preferably, the paint circulation replenishment container has an upward opening, and the upper end of the paint circulation replenishment container is provided with a replenishment container cap.

[0010] Preferably, a pump bracket is fixedly connected to the outer wall of the paint circulation replenishment container, and the replenishment pump is mounted on the pump bracket.

[0011] Preferably, a container support is fixedly connected to the outer wall of the oil storage tank, and the bottom of the paint circulation replenishment container is mounted on the container support.

[0012] Compared with the prior art, the advantages of this utility model are as follows: by setting a paint circulation replenishment container corresponding to the outside of the oil storage tank, a replenishment pump is provided on the outside of the paint circulation replenishment container, the oil storage tank is provided with an oil storage tank replenishment interface, the output end of the replenishment pump is connected to the oil storage tank replenishment interface through a replenishment pipe, the input end of the replenishment pump is connected to the paint circulation replenishment container through a suction pipe, and the oil storage tank is provided with an oil storage tank stirring device, which is conducive to obtaining uniform paint coating on the side of the board, thereby contributing to the stability of the board coating quality. Attached Figure Description

[0013] Figure 1 This is a rear top view of the three-dimensional structure of the fireproof board coating system of this utility model.

[0014] Figure 2 This is a left front view three-dimensional structural diagram of the fireproof board edge coating system of this utility model.

[0015] Figure 3This is a cross-sectional structural diagram of the combination of the oil storage tank and the paint circulation replenishment container of this utility model.

[0016] Figure 4 This is a left-side structural schematic diagram of the combination of the oil storage tank and the paint circulation replenishment container of this utility model.

[0017] Labeling: Nozzle assembly 1; Oil supply pump 2; Oil reservoir 3; Oil reservoir inlet 301; Oil reservoir outlet 302; Oil reservoir replenishment inlet 303; Oil reservoir stirring device 31; Stirring impeller 311; Gear motor assembly 312; Oil reservoir cover 32; Oil pump 4; Transition oil tank 5; Vacuum oil tank 6; Exhaust fan 7; Paint circulation replenishment container 8; Replenishment pipe 81; Extraction pipe 811; Container support 82; Replenishment container cover 83; Replenishment container level sensor 801; Pump support 84; Replenishment pump 9; Flow sensor 91. Detailed Implementation

[0018] The present invention will now be further described with reference to the accompanying drawings.

[0019] This utility model discloses a uniform liquid replenishment system for fireproof board edge coating, such as... Figure 1 and Figure 2 As shown, the system includes a nozzle assembly 1, an oil supply pump 2, an oil reservoir 3, and a paint circulation and replenishment container 8. The spraying and return structure of the nozzle assembly 1 is prior art and can be referenced in Chinese invention patent application publication number CN120133031A, entitled "A Fireproof Board Edge Coating System and Paint Adjustment Method". Figures 1 to 4 As shown, the paint circulation replenishment container 8 is used to hold the thinner, the oil tank 3 is provided with an oil tank outlet 302, the output end of the oil supply pump 2 is connected to the input end of the nozzle assembly 1, the input end of the oil supply pump 2 is connected to the oil tank outlet 302, and the oil tank outlet 302 is located on one side of the lower end of the oil tank 3. Specifically, the fireproof board coating system also includes an oil pump 4, a transition oil tank 5, a vacuum oil tank 6, and an exhaust fan 7. The vacuum oil tank 6 is provided with an oil tank inlet, an oil tank outlet, and an oil tank air outlet. The oil return port of the nozzle assembly 1 is connected to the oil tank inlet. The air inlet of the exhaust fan 7 is connected to the oil tank air outlet. The oil tank outlet is connected to the input of the transition oil tank 5. The oil pump 4 is a diaphragm pump. The output of the transition oil tank 5 is connected to the input of the oil pump 4. The oil storage tank 3 is provided with an oil storage tank inlet 301. The output of the oil pump 4 is connected to the oil storage tank inlet 301, thereby forming a paint circulation. The above paint circulation structure can be referred to "A fireproof board coating system and paint adjustment method" in Chinese invention patent application publication number CN120133031A.

[0020] like Figures 1 to 4As shown, the paint circulation replenishment container 8 is located on the outside of the oil storage tank 3. A replenishment pump 9 is installed on the outside of the paint circulation replenishment container 8. The oil storage tank 3 has an oil storage tank replenishment interface 303. The output end of the replenishment pump 9 is connected to the oil storage tank replenishment interface 303 via a replenishment pipe 81. The input end of the replenishment pump 9 is connected to the paint circulation replenishment container 8 via a suction pipe 811. The replenishment pipe 81 and the suction pipe 811 can be flexible hoses (it should be noted that only flexible hoses are suitable for this purpose). Figure 4 The diagram schematically illustrates the replenishment pipe 81 and the extraction pipe 811. The oil tank replenishment interface 303 may include a first pipe body made of stainless steel, which passes through the wall of the oil tank 3. The oil tank 3 is welded to the outer wall of the first pipe body. One end of the replenishment pipe 81 is fitted onto the outer end of the first pipe body, and the inner end of the first pipe body extends into the oil tank 3. Similarly, a second pipe body passes through one side wall of the paint circulation replenishment container 8, and one end of the extraction pipe 811 is fitted onto the outer end of the second pipe body, and the inner end of the second pipe body extends into the inner bottom of the paint circulation replenishment container 8. Figure 2 As shown, the oil storage tank 3 is equipped with an oil storage tank stirring device 31. Specifically, the oil storage tank stirring device 31 includes a stirring impeller 311 and a reduction motor assembly 312. The stirring impeller 311 is located in the lower part of the oil storage tank 3. The oil storage tank 3 is open upwards. The upper end of the oil storage tank 3 is covered with an oil storage tank cover 32. The reduction motor assembly 312 is installed on the oil storage tank cover 32, which facilitates the compact structure of the combination of the oil storage tank 3 and the oil storage tank stirring device 31. The output shaft of the reduction motor assembly 312 passes through the oil storage tank cover 32, and the stirring impeller 311 is installed at the lower end of the output shaft of the reduction motor assembly 312.

[0021] In practical applications, thinner is added to the paint circulation replenishment container 8, the edge coating equipment for the board is operated, and the fireproof board edge coating system is in operation, namely, the oil supply pump 2, the oil transfer pump 4, and the exhaust fan 7 are working, thus forming a paint circulation in the fireproof board edge coating system. During this period, the replenishment pump 9 is working, and the replenishment pump 9 draws the thinner from the paint circulation replenishment container 8 through the liquid extraction pipe 811 and injects the thinner into the oil storage tank 3 through the liquid extraction pipe 81. The oil storage tank stirring device 31 is continuously operating, so that the paint in the oil storage tank 3 is fully and evenly mixed with the thinner, so that the oil supply pump 2 draws a relatively uniform amount of paint from the oil storage tank 3. Then, the oil supply pump 2 injects the uniformly diluted paint into the nozzle assembly 1. The nozzle assembly 1 applies the paint to the side of the board. Excess paint is drawn back into the vacuum oil tank 6 by the oil tank suction port of the vacuum oil tank 6. The recovered paint then reaches the transition oil tank 5. After that, the oil transfer pump 4 delivers the paint in the transition oil tank 5 to the oil inlet 301 of the oil storage tank. As can be seen from the above, this utility model allows the thinner in the paint circulation replenishment container 8 to be directly injected into the oil storage tank 3. The oil storage tank's stirring device 31 then ensures the thinner and paint are evenly mixed before the paint is delivered to the spray head assembly 1. This results in a more uniform paint concentration when sprayed from the spray head assembly 1, leading to a more uniform paint coating on the sides of the substrate and thus contributing to stable coating quality. By positioning the paint circulation replenishment container 8 on the outside of the oil storage tank 3, it avoids installing it on the pressure beam of the substrate edge coating equipment. This ensures that adding paint to the oil storage tank 3 and adding thinner to the paint circulation replenishment container 8 are performed at roughly the same locations, facilitating worker operation. For example, the oil storage tank 3 can be placed on the ground behind the spray head assembly 1, preventing workers from needing to approach the moving substrate when adding thinner, thus promoting safer production. Existing technology requires the thinner to pass through a vacuum oil tank 6, a transition oil tank 5, and an oil pump 4 before reaching the oil storage tank 3. This invention, however, allows the thinner to be directly injected into the oil storage tank 3. Compared to the prior art, this invention allows paint with added thinner to reach the spray head assembly 1 via a shorter path, avoiding a longer paint delivery path that leads to more uncertain evaporation of the thinner. In other words, this invention provides better control over the thinner content of the paint applied to the side of the substrate. The spray head assembly 1 of this invention eliminates the "liquid replenishment hole" found in the prior art (Chinese Invention Patent Application Publication No. CN120133031A, "A Fireproof Board Edge Coating System and Paint Adjustment Method").

[0022] Furthermore, such as Figure 3As shown, a liquid level sensor 801 is provided at the lower part of the paint circulation replenishment container 8. The liquid level sensor 801 can detect the amount of thinner inside the paint circulation replenishment container 8. The liquid level sensor 801 is electrically connected to the control system. When the liquid level of the thinner in the paint circulation replenishment container 8 drops below the level sensor 801, the control system can know that there is a shortage of thinner in the paint circulation replenishment container 8 based on the disconnection signal of the liquid level sensor 801, so that the control system can take corresponding actions. For example, the control system can control the alarm to sound an alarm.

[0023] Furthermore, a flow sensor 91 is installed on the replenishment pipe 81. This means that the diluent output by the replenishment pump 9 flows through the flow sensor 91 before reaching the replenishment interface 303 of the oil reservoir. Thus, the flow sensor 91 can detect the flow rate of the diluent injected into the oil reservoir 3. The control system is electrically connected to the flow sensor 91, so it can know the actual flow rate of the diluent. The control system controls the replenishment pump 9, and the operator can adjust the output flow rate of the replenishment pump 9 through the control system and detect the actual output flow rate through the flow sensor 91, thereby realizing closed-loop control, which is beneficial for more accurate control of the flow rate of the diluent input into the oil reservoir 3.

[0024] Furthermore, the replenishment pump 9 is configured as a peristaltic pump. Peristaltic pumps have the advantage of high output accuracy. Since the actual amount of thinner volatilized in the paint circulation is small, peristaltic pumps are suitable for the fireproof board coating system of this utility model.

[0025] Furthermore, such as Figure 3 As shown, the paint circulation replenishment container 8 has an upward opening, meaning that the paint circulation replenishment container 8 has an opening at the top. Specifically, the paint circulation replenishment container 8 has a rectangular barrel structure, and the top of the paint circulation replenishment container 8 is provided with a replenishment container cover 83. Therefore, when the liquid level in the paint circulation replenishment container 8 is low, the replenishment container cover 83 can be opened by hand to conveniently replenish the thinner from the top opening of the paint circulation replenishment container 8, and then the replenishment container cover 83 can be closed to seal the top opening of the paint circulation replenishment container 8.

[0026] Furthermore, such as Figure 3 and Figure 4 As shown, a pump bracket 84 is fixedly connected (or welded) to the outer wall of the paint circulation replenishment container 8, and the replenishment pump 9 is installed on the pump bracket 84, thus combining the replenishment pump 9 and the paint circulation replenishment container 8 into a whole, which is beneficial to shortening the setting of the extraction pipe 811.

[0027] Furthermore, such as Figure 3 and Figure 4As shown, a container support 82 is fixedly connected (or welded) to the outer wall of the oil tank 3. The bottom of the paint circulation replenishment container 8 is mounted on the container support 82. Specifically, the bottom of the paint circulation replenishment container 8 is attached to the container support 82, and a lug plate is welded to the outer side of the bottom of the paint circulation replenishment container 8. The lug plate is connected to the container support 82 by screws, so that the paint circulation replenishment container 8 and the oil tank 3 are combined into a whole, which facilitates the placement and transportation of the paint circulation replenishment container 8 and helps to shorten the setting of the replenishment pipe 81.

Claims

1. A uniformly replenished fireproof board coating system, comprising a nozzle assembly (1), an oil supply pump (2), an oil tank (3), and a paint circulation replenishment container (8), wherein the oil tank (3) is provided with an oil tank outlet port (302), the output end of the oil supply pump (2) is connected to the input end of the nozzle assembly (1), and the input end of the oil supply pump (2) is connected to the oil tank outlet port (302), characterized in that: The paint circulation replenishment container (8) is located on the outside of the oil storage tank (3). The outside of the paint circulation replenishment container (8) is equipped with a replenishment pump (9). The oil storage tank (3) is equipped with an oil storage tank replenishment interface (303). The output end of the replenishment pump (9) is connected to the oil storage tank replenishment interface (303) through a replenishment pipe (81). The input end of the replenishment pump (9) is connected to the paint circulation replenishment container (8) through a suction pipe (811). The oil storage tank (3) is equipped with an oil storage tank stirring device (31).

2. The fireproof board edge coating system with uniform liquid replenishment according to claim 1, characterized in that: The lower part of the paint circulation replenishment container (8) is provided with a replenishment container level sensor (801).

3. The fireproof board edge coating system with uniform liquid replenishment according to claim 1, characterized in that: The replenishment tube (81) is equipped with a flow sensor (91).

4. The fireproof board edge coating system with uniform liquid replenishment according to claim 1, characterized in that: The replenishment pump (9) is configured as a peristaltic pump.

5. The fireproof board edge coating system with uniform liquid replenishment according to claim 1, characterized in that: The paint circulation replenishment container (8) is open to the top, and the upper end of the paint circulation replenishment container (8) is provided with a replenishment container cap (83).

6. The fireproof board edge coating system with uniform liquid replenishment according to any one of claims 1 to 5, characterized in that: A pump bracket (84) is fixedly connected to the outer wall of the paint circulation replenishment container (8), and the replenishment pump (9) is installed on the pump bracket (84).

7. The fireproof board edge coating system with uniform liquid replenishment according to claim 6, characterized in that: The outer wall of the oil storage tank (3) is fixedly connected to a container support (82), and the bottom of the paint circulation replenishment container (8) is installed on the container support (82).

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