A method of cleaning a panel

Abstract

This invention discloses a method for cleaning wood panels. The cleaning device includes a cleaning mechanism and a vacuum pressure tank. The cleaning mechanism includes a nozzle unit for spraying chemical reagents onto the wood panel and a brushing unit for applying the sprayed chemical reagents to the edges of the wood panel. The brushing unit is located behind the nozzle unit. The nozzle unit includes an upper atomizing nozzle and a lower atomizing nozzle located above and below the wood panel, respectively. Both the upper and lower atomizing nozzles are connected to the vacuum pressure tank, which provides chemical reagents to the upper and lower atomizing nozzles and applies stable pressure to them. The brushing unit includes an upper brush and a lower brush located above and below the wood panel, respectively, and both brushes can contact the surface of the wood panel. This cleaning device and method improve the application efficiency and uniformity of chemical reagents, reduce waste of chemical reagents, and minimize negative environmental impact.

Description

Technical Field

[0001] This invention relates to the field of sheet metal processing technology, and in particular to a method for cleaning sheet metal. Background Technology

[0002] An edge banding machine is a device used to apply edge banding strips to the edges of boards, and it is widely used in the furniture manufacturing and woodworking industries. Before edge banding, a release agent needs to be sprayed onto the boards to prevent any overflowing hot melt adhesive from adhering to the boards. After edge banding, a cleaning agent needs to be sprayed to remove any residual adhesive and release agent. Therefore, release agents and cleaning agents play a crucial role in the edge banding process.

[0003] Currently, the common method for applying chemical reagents to boards is through manual spraying. However, traditional spraying equipment has some problems and limitations, such as uneven spraying, excessive waste of chemical reagents, and potential environmental pollution. The unevenness of chemical reagent application during manual spraying may result in some areas having too much while others have too little, affecting the quality and aesthetics of the edge banding. Furthermore, a large amount of manpower and resources are required to manually clean the final board to meet the product's appearance standards, increasing manufacturing costs and burdening the environment. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, one of the present invention provides a board cleaning device to improve the application efficiency and uniformity of chemical reagents, reduce the waste of chemical reagents, and reduce the negative impact on the environment.

[0005] One of the present inventions is implemented using the following technical solution:

[0006] A board cleaning device includes a cleaning mechanism and a vacuum pressure tank. The cleaning mechanism includes a nozzle unit for spraying chemical reagents onto the board and a brushing unit for applying the sprayed chemical reagents to the edges of the board. The brushing unit is located behind the nozzle unit. The nozzle unit includes an upper atomizing nozzle and a lower atomizing nozzle located above and below the board, respectively. Both the upper and lower atomizing nozzles are connected to the vacuum pressure tank. The vacuum pressure tank provides chemical reagents to the upper and lower atomizing nozzles and applies stable pressure to them. The brushing unit includes an upper brush and a lower brush located above and below the board, respectively, and the upper and lower brushes can contact the board surface.

[0007] Furthermore, the cleaning mechanism also includes a control box, and both the upper atomizing nozzle and the lower atomizing nozzle are electrically connected to the control box.

[0008] Furthermore, it also includes a limit switch and a delay unit. The limit switch is used to detect the sensing signal as the board passes by and send the sensing signal to the control box. The delay unit sets a delay value according to the position of the limit switch to the position of the nozzle unit. The control box receives the sensing signal and controls the nozzle unit to spray chemical reagents according to the delay value.

[0009] Furthermore, both the upper and lower brushes are wool felt brush strips, and each wool felt brush strip is a non-powered brush strip.

[0010] Furthermore, both the upper and lower brushes are provided with elastic components so that the upper and lower brushes are in elastic contact with the surface of the board.

[0011] Furthermore, the atomization radii of both the upper and lower atomizing nozzles are adjustable.

[0012] Furthermore, the vacuum pressure tank includes at least two liquid outlets, an air inlet, and a pressure valve interface. The at least two liquid outlets are respectively connected to the upper atomizing nozzle and the lower atomizing nozzle through a first air pipe. The air inlet is connected to an air source through a second air pipe. The pressure valve interface is equipped with a pressure regulating valve. Each first air pipe is equipped with a liquid flow meter and a one-way valve.

[0013] Furthermore, it also includes lifting mechanisms respectively disposed above and below the board. Each lifting mechanism includes a crossbeam disposed along the moving direction of the board, a lifting rod disposed on the crossbeam, and a drive mechanism for driving the lifting rod to lift. A fixed plate is provided at the end of the lifting rod near the board. The fixed plate of the upper lifting mechanism is equipped with an upper atomizing nozzle and an upper side brush, and the fixed plate of the lower lifting mechanism is equipped with a lower atomizing nozzle and a lower side brush.

[0014] Furthermore, it also includes a polishing wheel unit, which is used to remove the chemical reagents from the surface of the board after the board has been coated.

[0015] The second invention provides a method for cleaning boards, which ensures that the entire edge of the board is uniformly wetted with chemical reagents, achieves high utilization of chemical reagents, and ensures the width of chemical reagent wetting, avoiding problems such as board surface contamination caused by splashing.

[0016] The second aspect of this invention is achieved using the following technical solution:

[0017] A method for cleaning wood panels, comprising the aforementioned wood panel cleaning device, wherein the cleaning method is as follows:

[0018] The delay value is preset based on the distance from the position of the limit switch to the position of the nozzle unit;

[0019] Set the spraying parameters for the nozzle unit, including the duration of each spray and the interval between sprays;

[0020] The limit switch detects the sensing signal as the end of the board passes by, and according to the preset delay value, the control box controls the spray head unit to start spraying. The spray head unit sprays chemical reagents onto the surface of the board according to the set spraying parameters.

[0021] After the spray nozzle unit reaches the spraying time for each application, it moves to the brushing unit, which then evenly brushes the chemical reagents sprayed onto the board surface onto the edges of the board.

[0022] After the chemical reagents are applied, the board passes through a polishing wheel unit to remove any remaining chemical reagents from the board surface.

[0023] Compared with the prior art, the beneficial effects of the present invention include at least the following:

[0024] (1) The cleaning device of the present invention first sprays chemical reagents onto the surface of the board in an atomized manner by the nozzle unit, which can make the surface of the board evenly covered with chemical reagents. Then, the brushing unit at the rear brushes the chemical reagents sprayed on the surface of the board onto the edge of the board, ensuring that the edge of the board can be evenly wetted with chemical reagents and achieving the purpose of high utilization rate of chemical reagents. At the same time, the brushing unit ensures the width of chemical reagent wetting, improves the application efficiency and uniformity of chemical reagents in the edge banding machine, reduces waste of chemical reagents, and reduces the negative impact on the environment. It does not require manpower and improves the degree of automation.

[0025] (2) The present invention uses a cleaning method that combines a nozzle unit and a brush unit, and with the setting of delay value and spraying parameters, it can achieve uniform and precise application of chemical reagents to the surface of the board, which greatly saves the use of chemical reagents and solves the problems of over-spraying, waste of a large amount of chemical reagents, increased manufacturing costs and environmental burden caused by traditional manual spraying. At the same time, it achieves easy control of the width of chemical reagent wetting, which solves the problem of the traditional spraying method where the spraying range is too wide and the excessively wide part cannot be cleaned and removed by the polishing wheel of the edge banding machine, resulting in oil stains on the surface and affecting the appearance of the product. Attached Figure Description

[0026] Figure 1 This is one of the schematic diagrams of a board cleaning device according to an embodiment of the present invention;

[0027] Figure 2 This is a second schematic diagram of a board cleaning device according to an embodiment of the present invention;

[0028] In the diagram: 1. Board material; 2. Upper atomizing nozzle; 3. Lower atomizing nozzle; 4. Upper brush; 5. Lower brush; 6. Control box; 7. Crossbeam; 8. Lifting rod; 9. Fixing plate. Detailed Implementation

[0029] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided to make the invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0030] The terms used to express position and direction in this invention are illustrated with the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this invention.

[0031] like Figure 1 and Figure 2 As shown, this invention provides a board cleaning device, including a cleaning mechanism and a vacuum pressure tank. The cleaning mechanism includes a nozzle unit for spraying chemical reagents onto the board 1 and a brushing unit for brushing the chemical reagents sprayed on the surface of the board 1 to the edge of the board 1. The brushing unit is located behind the nozzle unit. The nozzle unit includes an upper atomizing nozzle 2 and a lower atomizing nozzle 3 located above and below the board 1, respectively. Both the upper atomizing nozzle 2 and the lower atomizing nozzle 3 are connected to the vacuum pressure tank. The vacuum pressure tank is used to provide chemical reagents to the upper atomizing nozzle 2 and the lower atomizing nozzle 3 and to apply stable pressure to them. The brushing unit includes an upper brush 4 and a lower brush 5 located above and below the board 1, respectively, and the upper brush 4 and the lower brush 5 can contact the surface of the board 1.

[0032] In this embodiment, the sheet material 1 is carried and conveyed by a conveyor mechanism, which can be a conveyor belt. Therefore, the speed at which the sheet material 1 moves can be controlled by setting the conveyor belt's conveying speed. The direction of movement of the sheet material 1 is as follows: Figure 1As indicated by the arrow, the brushing unit is located behind the spray head unit, meaning that the board 1 passes through the spray head unit first and then the brushing unit. An upper atomizing nozzle 2 and a lower atomizing nozzle 3 are respectively installed above and below the board 1, allowing simultaneous spraying of chemical reagents onto both the upper and lower surfaces of the board 1. The upper and lower atomizing nozzles 2 and 3 are supplied with chemical reagents by a vacuum pressure tank, which provides stable pressure to prevent dry spraying. An upper brush 4 and a lower brush 5 are respectively installed above and below the board 1, allowing simultaneous brushing of the chemical reagents sprayed on both the upper and lower surfaces to the edges of the board 1, improving brushing efficiency. The upper and lower brushes 4 and 5 evenly brush the chemical reagents sprayed onto the edge of the board 1 along the entire edge, achieving uniform and precise application of the chemical reagents to the board surface, thus saving chemical reagents and improving the edge sealing effect. This invention first uses a nozzle unit to spray chemical reagents onto the surface of board 1 in an atomized manner, ensuring a uniform coating of chemical reagents on the surface of board 1. Then, a brushing unit at the rear brushes the sprayed chemical reagents onto the edges of board 1, ensuring that the entire edge of board 1 is evenly soaked in chemical reagents and achieving high utilization of chemical reagents. At the same time, the brushing unit ensures the width of chemical reagent wetting, avoiding problems such as board surface contamination caused by splashing. This improves the application efficiency and uniformity of chemical reagents in the edge banding machine, reduces waste of chemical reagents, and reduces negative environmental impact. It requires no manual labor and improves the degree of automation.

[0033] In a preferred embodiment, the cleaning mechanism further includes a control box 6, and both the upper atomizing nozzle 2 and the lower atomizing nozzle 3 are electrically connected to the control box 6.

[0034] In this embodiment, by setting the control box 6, the duration and interval of each spraying by the upper atomizing nozzle 2 and the lower atomizing nozzle 3 can be set. That is, every time the board 1 travels a certain distance, the control box 6 will activate the corresponding atomizing nozzle to spray, which is a spot spraying function, ensuring that the entire edge of the board 1 is evenly wetted with chemical reagents and achieving high utilization of chemical reagents. The spraying duration of each atomizing nozzle is determined according to the continuous wetting of the chemical reagents after brushing.

[0035] In a preferred embodiment, a limit switch and a delay unit are also included. The limit switch is used to detect the sensing signal as the plate 1 passes by and send the sensing signal to the control box 6. The delay unit sets a delay value according to the position of the limit switch to the position of the nozzle unit. The control box 6 receives the sensing signal and controls the nozzle unit to spray chemical reagents according to the delay value.

[0036] In this embodiment, when the limit switch senses the passage of the board 1, the delay time for the board 1 to reach the position of the spray head unit is accurately determined by the delay value preset by the delay unit. At this time, the control box 6 controls the spray head unit to start, so as to achieve timely spraying. Specifically, in this embodiment, the upper atomizing nozzle 2 and the lower atomizing nozzle 3 spray the board 1 for 0.5 seconds (at which time the board 1 stops moving). After the spraying is completed, the conveying mechanism continues to convey the board 1 forward. When the board 1 passes the brushing unit, the upper brush 4 and the lower brush 5 evenly brush the chemical reagent sprayed to the edge of the board 1 to the edge of the board 1. It can be understood that, under normal circumstances, the chemical reagent sprayed within 0.5 seconds is only enough to wet a certain length of the board 1. Therefore, when encountering a longer board 1, the control box 6 will control the spray head unit to start spraying after passing a certain distance, which is the spot spraying function. This is to ensure that the entire edge of the board 1 is evenly wetted with chemical reagent and to achieve the purpose of high utilization rate of chemical reagent.

[0037] In a preferred embodiment, both the upper brush 4 and the lower brush 5 are wool felt brush strips, and each wool felt brush strip is a non-powered brush strip. In this embodiment, the wool felt brush strips are made of fine, straight, and soft wool, with long, neat bristles and a relatively loose bristle density. This allows for easy evaporation of chemical liquids during brushing and prevents hardening. Furthermore, the wool felt brush strips, as a brushing structure, are environmentally friendly and durable. Since both the upper brush 4 and the lower brush 5 are non-powered brush strips, no power device is required for brushing. During the conveying process of the board 1, brushing is performed as the board 1 moves forward, saving costs.

[0038] In a preferred embodiment, both the upper brush 4 and the lower brush 5 are provided with elastic components so that the upper brush 4 and the lower brush 5 are in elastic contact with the surface of the board 1.

[0039] In this embodiment, elastic components are provided on both the upper brush 4 and the lower brush 5, so that the brushes do not apply too much pressure to the plate surface and brush all the liquid outside the plate, thus avoiding waste of chemical reagents.

[0040] In a preferred embodiment, the atomization radii of both the upper atomizing nozzle 2 and the lower atomizing nozzle 3 are adjustable. By adjusting the atomization radii of the upper atomizing nozzle 2 and the lower atomizing nozzle 3, it is easy to adjust and form atomization spaces of different ranges to adapt to different widths of the sheet material 1, thus providing greater flexibility.

[0041] In a preferred embodiment, the vacuum pressure tank includes at least two liquid outlets, an air inlet, and a pressure valve interface. The at least two liquid outlets are respectively connected to the upper atomizing nozzle 2 and the lower atomizing nozzle 3 through a first air pipe. The air inlet is connected to an air source through a second air pipe. A pressure regulating valve is installed on the pressure valve interface. A liquid flow meter and a one-way valve are installed on each of the first air pipes.

[0042] In this embodiment, the upper atomizing nozzle 2 and the lower atomizing nozzle 3 are connected to their corresponding liquid outlets via a first air pipe. The first air pipe is preferably made of PTFE material, which possesses high chemical stability and excellent resistance to chemical corrosion, such as resistance to strong acids, strong alkalis, and strong oxidants. It also exhibits outstanding heat resistance, cold resistance, and wear resistance. A one-way valve is installed on the first air pipe to ensure that the liquid inside the pipe does not flow back, thus preventing delays in the spraying effect of the nozzles. A liquid flow meter is installed on the first air pipe to monitor the liquid flow rate and achieve quantitative spraying. The air inlet is connected to an external air source via a second air pipe to provide pressure to the vacuum pressure tank. A pressure regulating valve is installed to control the amount of liquid discharged from the vacuum pressure tank, preventing excessive pressure from causing excessive wetting and liquid dripping that could corrode the device. It also controls the amount of liquid applied to the board 1, avoiding waste of chemical reagents and excessive ink stains on the board surface.

[0043] In a preferred embodiment, the system further includes lifting mechanisms respectively disposed above and below the plate 1. Each lifting mechanism includes a crossbeam 7 disposed along the moving direction of the plate 1, a lifting rod 8 disposed on the crossbeam 7, and a driving mechanism for driving the lifting rod 8 to move up and down. A fixing plate 9 is provided at one end of the lifting rod 8 near the plate 1. The fixing plate 9 of the upper lifting mechanism is equipped with an upper atomizing nozzle 2 and an upper side brush 4, and the fixing plate 9 of the lower lifting mechanism is equipped with a lower atomizing nozzle 3 and a lower side brush 5.

[0044] In this embodiment, to accommodate cleaning boards of different thicknesses, a lifting mechanism is used to raise and lower the spray head unit and the brush coating unit. Specifically, a drive mechanism moves the lifting rod 8 vertically up and down to change the height of the spray head unit and the brush coating unit above the board surface, thereby adapting to boards of different thicknesses. Preferably, the drive mechanism can be a pneumatic cylinder or a hydraulic cylinder.

[0045] In a preferred embodiment, a polishing wheel unit is also included. This polishing wheel unit is used to remove the chemical reagents from the surface of the board 1 after the coating is applied. The polishing action of the polishing wheel unit effectively cleans the adhesive and other stains from the surface of the board 1, ensuring its cleanliness and eliminating the need for subsequent manual cleaning.

[0046] The present invention also provides a method for cleaning boards, including the above-mentioned board cleaning device, wherein the cleaning method is as follows:

[0047] Set the delay value based on the distance from the location of the limit switch to the location of the nozzle unit;

[0048] Set the spraying parameters of the nozzle unit, including the spraying duration of each spray and the time interval between sprays;

[0049] The limit switch detects the sensing signal passing through the end of the board 1 and sends the sensing signal to the control box 6. The control box 6 controls the nozzle unit to start spraying according to the preset delay value. The nozzle unit sprays chemical reagents onto the surface of the board 1 according to the set spraying parameters.

[0050] After the spray nozzle unit reaches the spraying time for each spray, it moves to the brushing unit, which then evenly brushes the chemical reagent sprayed onto the board surface onto the edge of the board.

[0051] After the chemical reagent is applied, the board 1 passes through the polishing wheel unit to remove the residual chemical reagent from the surface of the board 1.

[0052] In this invention, the board 1 is conveyed by a conveyor belt. A delay value is set according to the conveyor belt speed and the distance from the limit switch to the nozzle unit. The limit switch detects the sensing signal as the end of the board 1 passes by. The control box 6 receives the sensing signal and starts timing. When the preset delay value is reached, the control box 6 controls the nozzle unit to start spraying chemical reagents, thereby realizing the spraying of chemical reagents from the end of the board 1. The upper atomizing nozzle 2 and the lower atomizing nozzle 3 of the nozzle unit spray the board 1 according to the set spraying parameters. After each spraying time, the board 1 moves to the brushing unit. The upper brush 4 and the lower brush 5 of the brushing unit brush the chemical reagent sprayed on the surface of the board 1 to the edge of the board 1. Then, the brushing effect of the chemical reagent on the surface of the board 1 and the wetting of the board surface are observed. The above operation is repeated on the board 1 according to the set spraying interval and spraying time until the entire edge of the board 1 is evenly coated with chemical reagents.

[0053] The cleaning method of this invention, through the cooperation of a nozzle unit and a brush unit, and with the setting of limit switches, delay values, and spraying parameters, achieves uniform and precise application of chemical reagents to the entire edge of the board 1. This greatly saves on the use of chemical reagents and solves the problems of over-spraying, waste of large amounts of chemical reagents, increased manufacturing costs, and environmental burden caused by traditional manual spraying. At the same time, the brush unit allows for easy control of the width of chemical reagent penetration, solving the problem of excessively wide spraying areas in traditional spraying methods, where the excessively wide areas cannot be cleaned and removed by the polishing wheel of the edge banding machine, resulting in oil stains on the surface and affecting the product appearance.

[0054] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the invention without departing from the principles and spirit of the invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. A method for cleaning boards, characterized in that, Cleaning is performed using a cleaning device, and the cleaning method is as follows: The delay value is preset based on the distance from the position of the limit switch to the position of the nozzle unit; Set the spraying parameters for the nozzle unit, including the duration of each spray and the interval between sprays; The limit switch detects the sensing signal passing through the end of the board (1), and according to the preset delay value, the control box (6) controls the nozzle unit to start spraying. The nozzle unit sprays chemical reagents on the surface of the board (1) according to the preset spraying parameters. After the spray nozzle unit reaches the spraying time for each spray, it moves to the brushing unit, which then evenly brushes the chemical reagent sprayed onto the board surface onto the edge of the board (1). After the chemical reagent is applied, the board (1) passes through the polishing wheel unit to remove the residual chemical reagent on the surface of the board (1). The cleaning device includes a cleaning mechanism and a vacuum pressure tank. The cleaning mechanism includes a nozzle unit for spraying chemical reagents onto the board (1) and a brushing unit for brushing the chemical reagents sprayed on the surface of the board (1) to the edge of the board (1). The brushing unit is located behind the nozzle unit. The nozzle unit includes an upper atomizing nozzle (2) and a lower atomizing nozzle (3) located above and below the board (1), respectively. Both the upper atomizing nozzle (2) and the lower atomizing nozzle (3) are connected to the vacuum pressure tank. The vacuum pressure tank is used for spraying the upper atomizing nozzle (2) and the lower atomizing nozzle (3). The head (3) provides chemical reagents and applies stable pressure to both. The brushing unit includes an upper brush (4) and a lower brush (5) located above and below the board (1), respectively. The upper brush (4) and the lower brush (5) can contact the surface of the board (1). Both the upper brush (4) and the lower brush (5) are provided with elastic components so that the upper brush (4) and the lower brush (5) are in elastic contact with the surface of the board (1). The unit also includes a polishing wheel unit, which is used to remove the chemical reagents from the surface of the board (1) after the board (1) is brushed.

2. The method for cleaning boards according to claim 1, characterized in that, The cleaning mechanism also includes a control box (6), and the upper atomizing nozzle (2) and the lower atomizing nozzle (3) are both electrically connected to the control box (6).

3. The method for cleaning boards according to claim 2, characterized in that, It also includes a limit switch and a delay unit. The limit switch is used to detect the sensing signal of the plate (1) passing by and send the sensing signal to the control box (6). The delay unit sets a delay value according to the position of the limit switch to the position of the nozzle unit. The control box (6) receives the sensing signal and controls the nozzle unit to spray chemical reagents according to the delay value.

4. The method for cleaning boards according to claim 1, characterized in that, The upper brush (4) and the lower brush (5) are both wool felt brush strips, and each wool felt brush strip is a non-powered brush strip.

5. The method for cleaning boards according to claim 1, characterized in that, The atomization radii of both the upper atomizing nozzle (2) and the lower atomizing nozzle (3) are adjustable.

6. The method for cleaning boards according to claim 1, characterized in that, The vacuum pressure tank includes at least two liquid outlets, an air inlet, and a pressure valve interface. The at least two liquid outlets are respectively connected to the upper atomizing nozzle (2) and the lower atomizing nozzle (3) through a first air pipe. The air inlet is connected to an air source through a second air pipe. The pressure valve interface is equipped with a pressure regulating valve. Each first air pipe is equipped with a liquid flow meter and a one-way valve.

7. The method for cleaning boards according to claim 1, characterized in that, It also includes lifting mechanisms respectively set above and below the plate (1). Each lifting mechanism includes a crossbeam (7) set along the moving direction of the plate (1), a lifting rod (8) set on the crossbeam (7), and a driving mechanism for driving the lifting rod (8) to lift. The lifting rod (8) is provided with a fixing plate (9) at one end near the plate (1). The fixing plate (9) of the upper lifting mechanism is equipped with an upper atomizing nozzle (2) and an upper side brush (4), and the fixing plate (9) of the lower lifting mechanism is equipped with a lower atomizing nozzle (3) and a lower side brush (5).

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