Degreasing device for pine coated plate before spraying

Abstract

The utility model relates to the technical field of pine coated plate processing, in particular to a degreasing device before spraying of a pine coated plate, which comprises a degreasing tank for degreasing the pine plate and a liquid storage tank for containing organic solution, a liquid discharge pipe is connected between the degreasing tank and the liquid storage tank, an electric control valve is arranged on the liquid discharge pipe, and the liquid discharge pipe is connected with the degreasing tank. The degreasing tank is connected with a gas conveying pipe used for conveying high-temperature steam into the degreasing tank, the liquid storage tank is further communicated with a circulating pipe, the output end of the circulating pipe is located in the degreasing tank, and a water pump is arranged on the circulating pipe. According to the wood degreasing device, the wood is heated, resin and water in the wood are heated to expand, part of the resin and the water can seep from the interior of the wood, and therefore the burden of subsequent organic solvent degreasing is reduced, steam and organic solvent are stirred through the uniform mixing assembly, the steam and the organic solvent can make uniform contact with the wood in the degreasing tank, and the degreasing uniformity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of processing of pine wood coating boards, in particular to a degreasing device for pine wood coating boards before spraying. Background Technique

[0002] A pine wood coating board is a board with pine wood as the base material, which has been processed and coated. Pine wood is a common building material and has a wide range of applications in aspects such as improving the indoor environment, beautifying the home, and enhancing the building structure. However, if the wood contains too much rosin and resin, it will affect the quality and use effect of the wood. Therefore, degreasing treatment is necessary. Pine wood degreasing refers to the process of removing oily substances such as rosin and resin on the surface of pine wood.

[0003] If painting is carried out without degreasing or with a low degreasing rate, the adhesion of the paint film will be very low, and it is easy to form bubbles. At the same time, the furniture paint is easy to warp and crack. Common pine wood degreasing methods include chemical degreasing and heat treatment degreasing. If only heat treatment degreasing is used to soften and shed oily substances such as rosin and resin, this method is not only relatively slow, but also requires a large amount of water and energy, so it is relatively costly. And if only chemical organic solvents are used for degreasing, the moisture content in the pine wood is relatively high, which will occupy the pores inside the wood and reduce the space that the organic solvent can enter, resulting in incomplete resin removal and affecting the degreasing effect.

[0004] Based on the above situation, it is necessary to design a degreasing device for pine wood coating boards before spraying to solve the above problems. Content of the Utility Model

[0005] The utility model provides a degreasing device for pine wood coating boards before spraying to solve the problem that the resin removal of pine wood boards in the prior art is incomplete and affects the degreasing effect.

[0006] The technical problems solved by the utility model are realized by adopting the following technical solutions:

[0007] A degreasing device for pine wood coating boards before spraying includes a degreasing tank for degreasing pine wood boards and a liquid storage tank for storing organic solutions. A drain pipe is connected between the degreasing tank and the liquid storage tank, and an electric control valve is arranged on the drain pipe. An air delivery pipe for conveying high-temperature steam into the degreasing tank is connected to the degreasing tank, and a circulating pipe with an output end located inside the degreasing tank is also communicated with the liquid storage tank. A water pump is arranged on the circulating pipe for injecting organic solvents into the degreasing tank. A mixing component is arranged on the degreasing tank, and the mixing component is used for stirring the high-temperature steam and the organic solvents.

[0008] Preferably, the mixing component includes a driving member and stirring blades. The driving member is connected to the degreasing tank, and the stirring blades are connected to the output shaft of the driving member extending into the interior of the degreasing tank.

[0009] Preferably, an intake pipe is connected to the output end of the gas transmission pipe. A plurality of outlet manifolds are provided on the intake pipe, and the outlet manifolds are inverted U-shaped with the output end facing downward.

[0010] Preferably, a timing opening and closing assembly is further included. The timing opening and closing assembly includes a timer and a controller electrically connected to the timer. The controller is configured to control the gas injection and liquid injection into the degreasing tank after receiving the signal from the timer.

[0011] Preferably, a communication pipe and a filling port are provided on the liquid storage tank.

[0012] Preferably, a sealing door is hinged to one end of the degreasing tank, and a transportation track is provided inside the degreasing tank.

[0013] The beneficial effects of the present utility model are as follows: First, high-temperature steam is injected into the degreasing tank through the gas transmission pipe to heat the pine wood boards at high temperature, causing the resin and moisture inside the wood to expand due to heat. Part of the resin and moisture will seep out from the wood interior, thereby reducing the burden of subsequent organic solvent degreasing and improving the overall efficiency of degreasing. Moreover, with the pretreatment of steam heating, the time required for the entire degreasing process can be shortened, improving production efficiency. At the same time, through the mixing assembly, the steam and the organic solvent are agitated, enabling them to uniformly contact the wood in the degreasing tank, thereby improving the degreasing uniformity. Description of the Drawings

[0014] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0015] Figure 1 Structural schematic diagram of the first state of the present utility model:

[0016] Figure 2 Structural schematic diagram of the second state of the present utility model:

[0017] Figure 3 Cross-sectional structural schematic of the present utility model Figure 1 :

[0018] Figure 4 Cross-sectional structural schematic of the present utility model Figure 2 。

[0019] In the figure, 1 is a degreasing tank; 11 is an exhaust pipe; 12 is an exhaust fan; 2 is a liquid storage tank; 3 is a drain pipe; 31 is an electric control valve; 4 is an air delivery pipe; 41 is an intake pipe; 42 is an outlet manifold; 5 is a circulation pipe; 51 is a water pump; 6 is a driving member; 61 is a stirring blade; 7 is a timer; 71 is a controller; 8 is a connecting pipe; 81 is a filling port; 9 is a sealing door; 91 is a transport track; 92 is a transport trolley. Detailed implementation mode

[0020] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below with reference to specific illustrations.

[0021] Refer to Figures 1-4As shown in the figure, a degreasing device for pine wood coating boards before spraying includes a degreasing tank 1 for degreasing pine wood boards and a liquid storage tank 2 for containing organic solutions such as ethanol and acetone. One end of the degreasing tank 1 is hinged with a sealing door 9, and a transport track 91 is provided inside the degreasing tank 1. A transport trolley 92 is slidably connected to the transport track 91. During degreasing, the pine wood boards to be degreased can be stacked on the transport trolley 92. At the same time, in order to facilitate the entry and exit of the transport trolley 92 from the degreasing tank 1, a track (not shown in the figure) with the same height as the transport track 91 can be provided outside the degreasing tank 1. After pushing the transport trolley 92 loaded with boards into the degreasing tank 1, the sealing door 9 can be closed. An air supply pipe 4 for conveying high-temperature steam into the degreasing tank 1 is connected to the degreasing tank 1. The input end of the air supply tank can be connected to an external steam pipeline to input high-temperature steam into the degreasing tank 1 to heat the pine wood boards. Heating can cause the resin and moisture inside the wood to expand due to heat, and part of the resin and moisture will seep out from the inside of the wood, thus reducing the burden of subsequent organic solvent degreasing. And an exhaust pipe 11 and an exhaust fan 12 are provided on the degreasing tank 1 to discharge some steam to avoid danger caused by excessive air pressure inside the degreasing tank 1. A circulation pipe 5 with an output end located inside the degreasing tank 1 is also connected to the liquid storage tank 2. A water pump 51 is provided on the circulation pipe 5 for injecting organic solvents into the degreasing tank 1. After heating with high-temperature steam and discharging the steam, the organic solvents in the liquid storage tank 2 are pumped by the water pump 51 and discharged into the degreasing tank 1 to soak the pine wood boards, so that the organic solvents can penetrate deeper into the wood and come into full contact with the remaining resin, thus more effectively removing the resin, improving the degreasing effect. And with the pretreatment of steam heating before, the resin content in the wood that needs to be treated with organic solvents is reduced, the usage amount of organic solvents is relatively reduced, the cost is reduced, the potential impact on the environment is reduced, and the time required for the entire degreasing process is also shortened, improving production efficiency. A drain pipe 3 is connected between the degreasing tank 1 and the liquid storage tank 2. An electric control valve 31 is provided on the drain pipe 3. When the electric control valve 31 is opened, the soaked organic solvents flow back to the liquid storage tank 2. At this time, the sealing door 9 is opened, and the boards can be taken out for the next process.

[0022] Among them, referring to Figure 3As shown, there are multiple sets of mixing components on the degreasing tank 1. The mixing components are used to agitate the high-temperature steam and organic solvents. The mixing components include a driving member 6 and agitating blades 61. The driving member 6 is connected to the degreasing tank 1, and the agitating blades 61 are connected to the output shaft of the driving member 6 extending into the interior of the degreasing tank 1. The driving member 6 can be a device such as a motor. By driving the rotation of the agitating blades 61, the steam or organic solvents are agitated and disrupted, which helps the steam or organic solvents to come into contact with the pine wood boards more fully and evenly, promotes the diffusion of the active ingredients in the steam or organic solvents to the surface of the pine wood boards, speeds up the rate of the degreasing reaction, shortens the processing time, and thus improves the consistency and quality of the degreasing effect.

[0023] Further, referring to Figure 4 As shown, the output end of the gas delivery pipe 4 is connected to an air inlet pipe 41. There are multiple sets of air outlet manifolds 42 on the air inlet pipe 41, and the air outlet manifolds 42 are inverted U-shaped with the output end facing downwards. Since the density of the high-temperature steam is less than that of air, it will rise without external force. Therefore, the output end of the air outlet manifold 42 is arranged below the degreasing tank 1. When the high-temperature steam enters the degreasing tank 1, it moves upwards and is blown onto the pine wood boards for heating under the action of the mixing components on both sides.

[0024] Further, it also includes a timing opening and closing component. The timing opening and closing component includes a timer 7 and a controller 71 electrically connected to the timer 7. The controller 71 is used to control the gas injection and liquid injection into the degreasing tank 1 after receiving the signal from the timer 7. According to the number or type of boards entering the degreasing tank 1, the heating time is set in advance. When the time set on the timer reaches, a signal is transmitted to the controller 71, and the controller 71 controls the exhaust fan 12 electrically connected to it to quickly discharge the steam in the degreasing tank 1. Then, it controls the water pump 51 electrically connected to it to extract the organic solvent in the liquid storage tank 2 into the degreasing tank 1 to soak the pine wood boards. After the set soaking time reaches, by opening the electric control valve 31, the organic solvent in the degreasing tank 1 is re-discharged into the liquid storage tank 2, which is more convenient and practical.

[0025] Among them, in order to facilitate knowing the remaining amount of the organic solvent, a transparent connecting pipe 8 and a filling port 81 are provided on the liquid storage tank 2. According to the principle of the communicating vessel, the liquid level height of the organic solvent in the liquid storage tank 2 can be observed through the connecting pipe 8, so as to timely add the organic solvent through the filling port 81 to avoid being unable to meet the soaking requirements for the pine wood boards in the degreasing tank 1 due to insufficient content of the organic solvent.

[0026] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A degreasing device for pine wood painted boards before spraying, comprising a degreasing tank (1) for degreasing pine wood boards and a liquid storage tank (2) for containing organic solution, characterized in that: A liquid discharge pipe (3) is connected between the degreasing tank (1) and the liquid storage tank (2), and an electrically controlled valve (31) is provided on the liquid discharge pipe (3). The degreasing tank (1) is connected to a gas supply pipe (4) for conveying high-temperature steam into the degreasing tank (1), and the liquid storage tank (2) is also connected to a circulation pipe (5) with an output end located in the degreasing tank (1). A water pump (51) is provided on the circulation pipe (5) for injecting an organic solvent into the degreasing tank (1). The degreasing tank (1) is provided with a mixing component, and the mixing component is used to stir the high-temperature steam and the organic solvent.

2. The degreasing device for pine wood painted board before spraying according to claim 1 is characterized in that: The mixing component comprises a driving member (6) and a stirring blade (61), wherein the driving member (6) is connected to the degreasing tank (1), and the stirring blade (61) is connected to an output shaft of the driving member (6) extending to the interior of the degreasing tank (1).

3. The degreasing device for pine wood painted board before spraying according to claim 1 is characterized in that: The output end of the air delivery pipe (4) is connected to an air intake pipe (41), and a plurality of groups of air outlet manifolds (42) are provided on the air intake pipe (41), and the air outlet manifolds (42) are in an inverted U shape with the output end facing downward.

4. The degreasing device for pine wood painted board before spraying according to claim 1 is characterized in that: It also includes a timed opening and closing component, the timed opening and closing component including a timer (7) and a controller (71) electrically connected to the timer (7), the controller (71) being used to control the gas injection and liquid injection into the degreasing tank (1) after receiving a signal from the timer (7).

5. The degreasing device before spraying of pine painted board according to claim 1 is characterized in that: The liquid storage tank (2) is provided with a connecting pipe (8) and a filling port (81).

6. The degreasing device for pine wood painted board before spraying according to claim 1 is characterized in that: A sealing door (9) is hingedly connected to one end of the degreasing tank (1), and a transport track (91) is provided inside the degreasing tank (1).

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