Fireproof plate edge coating and liquid supplementing structure
By setting up oil outlet channels and replenishment holes inside the nozzle, connecting them to a paint circulation replenishment container, and using a replenishment metering pump to replenish the thinner, the problem of poor coating effect caused by thinner evaporation is solved, thus improving the quality of board products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN XINKUAI TUMEI TECH CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-05-19
AI Technical Summary
When using UV paint, existing edge coating equipment for boards suffers from insufficient thinner content in the paint circulation due to thinner evaporation, which affects the coating effect and results in poor board product quality.
An oil outlet and a replenishment port are installed inside the nozzle, which is connected to a paint circulation replenishment container. The thinner is replenished into the paint circulation through a replenishment metering pump to ensure a stable supply of thinner.
By ensuring a stable supply of thinner, the circulation and delivery of paint are improved, ensuring stable paint performance on the sides of the board and enhancing the quality of the board products.
Smart Images
Figure CN224253156U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of edge coating equipment for sheet metal, and specifically to a liquid replenishment structure for edge coating of fireproof sheet metal. Background Technology
[0002] Currently, edge coating equipment for boards is used to coat and seal the sides of boards with paint, such as the "Fully Automatic Digital Edge Sealing Machine and its Edge Sealing Process" in Chinese Utility Model Patent Publication No. CN110576497B and the "Edge Coating Sanding Machine" in Chinese Utility Model Patent Publication No. CN110548662B. The edge coating equipment for sheet metal is equipped with a sheet metal edge coating system, which includes a nozzle device for spraying paint onto the side of the sheet metal. For example, the "Quick-Change Nozzle Device" in Chinese Utility Model Patent Publication No. CN212596661U has an oil spray hole and an oil suction hole at the front end of the nozzle device. The oil spray hole and the oil suction hole are set close to each other. In the working state, the front end of the nozzle mold is close to the edge of the sheet metal, and the oil is sprayed onto the edge of the sheet metal through the oil spray hole. Excess oil is sucked away by the oil suction hole. In order to save paint, the excess oil is sucked away by the oil suction hole and recycled to the vacuum oil tank. The oil supply pump delivers the recycled paint in the vacuum oil tank back to the oil spray hole, thus forming a paint circulation. In the paint circulation, an oil storage tank is set between the oil supply pump and the vacuum oil tank. When the liquid level in the oil storage tank drops to a certain level, the worker replenishes the oil storage tank with fire-retardant paint (with a certain formula). 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, as described in Chinese Utility Model Patent Publication No. CN110548662B, "An Edge Coating Sanding Machine." However, the fire resistance of the cured UV paint is poor. To produce a sheet material with better fire resistance, fire-retardant paint needs to be applied to the side of the sheet material. The edge coating equipment then dries the fire-retardant paint. However, the fire-retardant paint contains a thinner, which evaporates and is lost during paint circulation. This results in insufficient thinner content in the circulating paint, affecting paint circulation and delivery, thus impacting the effectiveness of the fire-retardant paint application to the side of the sheet material and ultimately hindering the improvement of sheet material quality. Summary of the Invention
[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a fireproof board coating edge replenishment structure, which is beneficial to improving the quality of board products.
[0004] The objective of this utility model is achieved through the following technical solution.
[0005] The fireproof board coating edge replenishment structure disclosed in this utility model includes a nozzle, the front end of which is provided with an oil spray port and an oil return port, the position of the oil spray port corresponding to the oil return port, wherein an oil outlet channel is formed inside the nozzle, the front end of the oil outlet channel is connected to the oil spray port, and a replenishment hole is formed on the nozzle, one end of the replenishment hole is connected to the oil outlet channel; it also includes a paint circulation replenishment container, the other end of the replenishment hole is connected to the paint circulation replenishment container.
[0006] Preferably, the fireproof board coating edge replenishment structure disclosed in this utility model further includes a replenishment metering pump, the input end of which is connected to the paint circulation replenishment container, and the output end of which is connected to the upper end of the replenishment hole.
[0007] Preferably, the fireproof board coating replenishment structure disclosed in this utility model further includes a container bracket for installing and connecting the pressure beam, and the paint circulation replenishment container is disposed on the container bracket.
[0008] Preferably, the liquid replenishment hole is located at the upper end of the nozzle.
[0009] Preferably, the nozzle has a top surface, and the liquid replenishment hole is disposed on the top surface of the nozzle, extending in the vertical direction.
[0010] Compared with the prior art, the advantages of this utility model are as follows: by setting an oil outlet channel inside the nozzle, the front end of the oil outlet channel is connected to the oil spray nozzle, and a liquid replenishment hole is formed on the nozzle, one end of the liquid replenishment hole is connected to the oil outlet channel, and the corresponding other end of the liquid replenishment hole is connected to the paint circulation liquid replenishment container, so that the thinner can be replenished into the paint circulation, thereby helping to improve the quality of the board product. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the edge coating equipment for fireproof boards with the edge coating and replenishment liquid structure of this utility model, viewed from the right rear direction.
[0012] Figure 2 This is a three-dimensional structural diagram of the edge coating equipment for fireproof boards with the edge coating and replenishment liquid structure of this utility model, viewed from the left rear direction.
[0013] Figure 3 for Figure 2 A partial structural diagram at point A.
[0014] Figure 4 This is a three-dimensional structural diagram of the nozzle assembly of this utility model.
[0015] Figure 5 This is a cross-sectional view of the nozzle assembly of this utility model.
[0016] Figure 6 This is a horizontal cross-sectional three-dimensional structural diagram of the nozzle of this utility model.
[0017] Figure 7 This is a simplified diagram of the connection structure between the nozzle and the paint circulation replenishment container of this utility model.
[0018] Figure 8 This is a cross-sectional structural diagram of the combination of vacuum oil tank and transition oil tank in a sheet metal edge coating equipment.
[0019] Labeling: Nozzle assembly 1; Nozzle 11; Oil outlet 1100; Nozzle top surface 1199; Oil nozzle 110; Oil inlet 115; Oil return port 116; Oil return channel 1161; Liquid replenishment hole 117; Oil return pipe 12; Suction pipe 121; Support 15; Oil supply pump 2; Oil storage tank 3; Oil storage tank stirring device 31; Oil transfer pump 4; Transition oil tank 5; Transition oil tank stirring device 51; Vacuum oil tank 6; Oil tank suction port 61; Temporary storage bucket 62; Oil tank air outlet 63; Oil tank oil outlet 64; Exhaust fan 7; Paint circulation liquid replenishment container 8; Liquid replenishment pipe 81; Container support 82; Liquid replenishment metering pump 9; Pressure beam 99; Bed 98; Plate 97. Detailed Implementation
[0020] The present invention will now be further described with reference to the accompanying drawings.
[0021] The fireproof board coating edge repair structure of this utility model, such as Figures 1 to 4 As shown, the nozzle includes a nozzle 11, the front end of which is provided with an injection port 110 and an oil return port 116, the position of the injection port 110 corresponding to the position of the oil return port 116, as shown. Figure 5 and Figure 6 As shown, an oil outlet channel 1100 is formed inside the nozzle 11, and the front end of the oil outlet channel 1100 is connected to the oil injection port 110. A fluid replenishment hole 117 is formed on the nozzle 11, and one end of the fluid replenishment hole 117 is connected to the oil outlet channel 1100; Figures 1 to 3 As shown, the fireproof board coating edge replenishment structure of this utility model also includes a paint circulation replenishment container 8, and the other end of the replenishment hole 117 is connected to the paint circulation replenishment container 8.
[0022] like Figures 1 to 3 As shown, the edge coating equipment for sheet metal includes an oil supply pump 2, an oil storage tank 3, a vacuum oil tank 6, and an exhaust fan 7. The exhaust fan 7 is existing technology; for example, refer to Chinese Utility Model Patent Publication No. CN209340185U, "An Adjustable Pressure Vortex Blower," or Chinese Utility Model Patent Publication No. CN217926384U, "A High-Pressure Blower." Figure 8 As shown, the vacuum oil tank 6 is equipped with an oil tank inlet 61 and an oil tank outlet 64. Figure 4 As shown, the nozzle 11 has an oil inlet hole 115, as... Figure 3As shown, the output end of the oil pump 2 is connected to the oil inlet port 115, as follows. Figure 6 As shown, the rear end of the oil outlet 1100 is connected to the oil inlet 115, so the paint is input into the oil inlet 115 through the oil supply pump 2, and then the paint reaches the spray nozzle 110 through the oil outlet 1100. Figure 4 As shown, the nozzle assembly 1 includes an oil return pipe 12 and a support 15. The nozzle 11 is mounted on the support 15, and the support 15 is mounted on the bed 98. Figure 6 As shown, a return oil channel 1161 is formed inside the nozzle 11, such as... Figure 5 As shown, the front end of the return oil pipe 12 is connected to the rear end of the return oil passage 1161, and the front end of the return oil passage 1161 is connected to the return oil port 116, as shown. Figure 2 , Figure 3 and Figure 8 As shown, the rear end of the return oil pipe 12 is connected to the oil tank suction port 61 via a suction pipe 121. Figure 1 As shown, the oil storage tank 3 is connected by an oil circuit to the input end of the oil supply pump 2 and the oil outlet end 64 of the oil tank, respectively. Figure 8 As shown, the vacuum oil tank 6 is provided with an oil tank outlet 63, and the air inlet of the exhaust fan 7 is connected to the oil tank outlet 63.
[0023] The following is a brief explanation of the working principle of the fireproof board edge coating and liquid replenishment structure of this utility model: Figures 1 to 5 As shown, the input end of the oil pump 2 draws paint from the oil storage tank 3, and the output end of the oil pump 2 delivers the paint to the nozzle 11, whereby the paint is sprayed out from the spray nozzle 110. Figure 5 As shown, the side of board 97 is attached to (in) Figure 1 From the visual direction, the plate 97 is positioned at the front end of the nozzle 11 (moving in the left-right direction). Therefore, the paint sprayed through the nozzle 110 can adhere to the side of the plate 97. Since the return port 116 is located close to the nozzle 110 (on the front end of the nozzle 11), any paint not adhering to the side of the plate 97 is immediately sucked back by the return port 116. The recovered paint then flows through the return pipe 12 to the suction pipe 121, and enters the vacuum oil tank 6 through the oil tank suction port 61. Figure 8 As shown, the recovered paint drips downwards into the temporary storage tank 62 inside the vacuum oil tank 6. The recovered paint then drips from the bottom of the temporary storage tank 62 onto a sloping guide plate inside the vacuum oil tank 6. The recovered paint then flows downwards along the sloping guide plate to the oil outlet 64 of the tank. The recovered paint then travels through the corresponding oil passage to the oil storage tank 3, thus forming a paint circulation. Meanwhile, the airflow entering the temporary storage tank 62 through the oil tank inlet 61 also exits through the bottom of the temporary storage tank 62 into the interior of the vacuum oil tank 6 (e.g., ...). Figure 8(As shown by the dashed arrow in the image), the oil tank outlet 63 is positioned above the temporary storage tank 62, causing the airflow to bend upwards to the oil tank outlet 63. The airflow then flows through the exhaust fan 7 and is discharged to the outside from the exhaust fan 7's outlet. Tiny oil droplets in the airflow fall back to the inclined guide plate due to gravity. Because the thinner is relatively volatile, a small amount of thinner is lost through the oil tank outlet 63. The oil storage tank 3 has an openable lid. When the amount of paint in the oil storage tank 3 decreases significantly, the lid can be opened to add more paint. During the operation of the fireproof board edge coating replenishment structure, the paint circulation replenishment container 8 can store thinner, such as... Figure 3 As shown, the thinner in the paint circulation replenishment container 8 can reach the oil outlet 1100 of the nozzle 11 through the replenishment pipe 81. For example, the thinner in the paint circulation replenishment container 8 can flow down to the nozzle 11 by gravity (connecting the upper end of the replenishment pipe 81 to the bottom of the paint circulation replenishment container 8). The thinner mixes into the paint flowing through the oil outlet 1100 and is discharged through the spray nozzle 110. Excess paint is then absorbed by the return port 116, and the replenished thinner is also drawn into the return port 116. The replenished thinner can then enter the vacuum oil tank 6. That is to say, the thinner replenishes the paint circulation, avoiding excessive paint viscosity, which is beneficial to the circulation and transportation of the paint. It also prevents the paint sprayed on the side of the board 97 from being too viscous, which is beneficial to the stability of the paint applied to the board 97. This reduces the impact of thinner evaporation and loss on the fire retardant paint applied to the board 97, thus improving the quality of the board product. When the exhaust fan 7 is running, it creates a strong negative pressure at the oil tank inlet 61, resulting in a high airflow velocity from the oil return port 116 to the oil tank inlet 61. The supplementary thinner that enters the oil return port 116 will be dispersed by the airflow, thus allowing the supplementary thinner to mix well with the recovered paint.
[0024] like Figure 8 As shown, more specifically, the oil outlet 64 of the oil tank is connected to a transition oil tank 5, such as... Figure 1 As shown, the oil pump 4 draws paint from the transition oil tank 5 and transports it to the storage tank 3. Since the oil pump 4 is a diaphragm pump (for example, refer to Chinese Utility Model Patent Publication No. CN210195980U, "A Remotely Controllable Diaphragm Pump"), the diaphragm pump has a sealing ball, thus the oil pump 4 has unidirectional conduction characteristics. When the oil pump 4 is working, the suction force of the paint is relatively large, so the relatively small negative pressure in the transition oil tank 5 will not cause the paint in the storage tank 3 to flow back into the transition oil tank 5. Figure 8As shown, the transition oil tank 5 is equipped with a transition oil tank stirring device 51. The motor assembly of the transition oil tank stirring device 51 is located outside the top of the transition oil tank 5, and the stirring impeller of the transition oil tank stirring device 51 is located inside the transition oil tank 5. The motor assembly of the transition oil tank stirring device 51 drives the stirring impeller of the transition oil tank stirring device 51 to rotate. Figure 1 As shown, the oil storage tank 3 is equipped with an oil storage tank stirring device 31.
[0025] Furthermore, such as Figure 7 As shown, the fireproof board coating edge replenishment structure of this utility model also includes a replenishment metering pump 9. The input end of the replenishment metering pump 9 is connected to the paint circulation replenishment container 8, and the output end of the replenishment metering pump 9 is connected to the upper end of the replenishment hole 117. That is to say, a replenishment metering pump 9 is provided on the replenishment pipe 81. The replenishment metering pump 9 can be installed inside or outside the paint circulation replenishment container 8. For an example of the replenishment metering pump 9, please refer to the Chinese utility model patent publication number CN204458276U, "One The "Diaphragm Metering Pump" and the "Digital Pneumatic Double Diaphragm Metering Pump" with Chinese Utility Model Patent Publication No. CN212079589U are mentioned. The replenishment metering pump 9 draws the thinner from the paint circulation replenishment container 8 and actively injects the thinner into the nozzle 11. By setting the replenishment metering pump 9, the flow rate of the thinner replenished in the paint circulation can be adjusted. For example, when the thickness of the board 97 is large, the output flow rate of the oil supply pump 2 needs to be set to a larger value. Correspondingly, the replenishment metering pump 9 is adjusted to output a larger flow rate.
[0026] Furthermore, such as Figure 2 and Figure 3 As shown, the fireproof board edge coating replenishment structure of this utility model also includes a container support 82 for installing and connecting the pressure beam 99 of the board edge coating equipment. The paint circulation replenishment container 8 is set on the container support 82. The paint circulation replenishment container 8 can be welded to the container support 82. The container support 82 is connected to the pressure beam 99 by corresponding screws. The pressure beam 99 is located above the conveyor chain. The lower end of the pressure beam 99 is provided with a pressure roller, which presses against the board 97. The conveyor chain supports the board 97. Since the pressure beam 99 is relatively close to the nozzle 11, the paint circulation replenishment container 8 can be relatively close to the nozzle 11, which helps to shorten the diluent delivery path from the paint circulation replenishment container 8 to the nozzle 11 and helps to reduce the load on the replenishment metering pump 9.
[0027] Furthermore, such as Figure 4 and Figure 5 As shown, the liquid replenishment hole 117 is located at the upper end of the nozzle 11, as follows: Figure 3As shown, since the paint circulation replenishment container 8 is set on the pressure beam 99, the position of the paint circulation replenishment container 8 is relatively high. By setting the replenishment hole 117 at the upper end of the nozzle 11, the diluent delivery path from the paint circulation replenishment container 8 to the nozzle 11 can be shortened (compared to setting the replenishment hole 117 at the lower end of the nozzle 11).
[0028] Furthermore, such as Figure 4 and Figure 5 As shown, the nozzle 11 has a top surface 1199, and a liquid replenishment hole 117 is provided on the top surface 1199. The liquid replenishment hole 117 extends in the vertical direction, as shown. Figure 3 Combination Figure 7 As shown, the above arrangement allows the end of the replenishment pipe 81 connected to the replenishment hole 117 to be led out vertically, which is beneficial for setting the replenishment pipe 81 at a higher position and avoids the replenishment pipe 81 from obstructing the workers from observing the working conditions of the spray head 11 coating the side of the plate 97 on the left and right sides of the spray head 11.
Claims
1. A fireproof board edge coating and replenishment structure, comprising a nozzle (11), wherein the front end of the nozzle (11) is provided with an oil spray port (110) and an oil return port (116), the position of the oil spray port (110) corresponding to the position of the oil return port (116), characterized in that: The nozzle (11) has an oil outlet channel (1100) formed inside, the front end of the oil outlet channel (1100) is connected to the oil spray port (110), and a liquid replenishment hole (117) is formed on the nozzle (11), one end of the liquid replenishment hole (117) is connected to the oil outlet channel (1100); it also includes a paint circulation liquid replenishment container (8), and the other end of the liquid replenishment hole (117) is connected to the paint circulation liquid replenishment container (8).
2. The fireproof board edge coating and liquid replenishment structure according to claim 1, characterized in that: It also includes a replenishment metering pump (9), the input end of which is connected to the paint circulation replenishment container (8), and the output end of which is connected to the upper end of the replenishment hole (117).
3. The fireproof board edge coating and liquid replenishment structure according to claim 2, characterized in that: It also includes a container support (82) for mounting the connecting pressure beam (99), the paint circulation replenishment container (8) being mounted on the container support (82).
4. The fireproof board edge coating and liquid replenishment structure according to claim 3, characterized in that: The replenishment hole (117) is located at the upper end of the nozzle (11).
5. The fireproof board edge coating and liquid replenishment structure according to claim 4, characterized in that: The nozzle (11) has a nozzle top surface (1199), and the liquid replenishment hole (117) is provided on the nozzle top surface (1199), and the liquid replenishment hole (117) extends in the vertical direction.