A feeding device for anti-corrosion coating of sheet materials

Abstract

The present invention relates to a feeding device for an anti-corrosion coating of a board, comprising: a conveying mechanism for conveying a wooden board; a brushing mechanism arranged above the conveying mechanism, the brushing mechanism is driven by a three-axis driving member, the brushing mechanism includes a feeding brush and a liquid outlet pipe connected to the feeding brush, the liquid outlet pipe is connected to an external anti-corrosion coating source, an installation frame is arranged on the brush head of the feeding brush, a longitudinal driving cylinder is arranged on the installation frame, the longitudinal driving cylinder drives a blocking member that blocks one side of the brush of the feeding brush, and the longitudinal driving cylinder changes the effective length or rigidity of the brush of the feeding brush by driving the up and down position of the blocking member; a roll coating mechanism arranged above the conveying mechanism and on one side of the brushing mechanism; a glue scraping mechanism arranged above the conveying mechanism, the glue scraping mechanism is driven by a transverse driving member, the glue scraping mechanism includes a glue scraping member, the end of the glue scraping member abuts against the surface of the roll coating mechanism, and the glue scraping member is used for scraping off the anti-corrosion coating in the corresponding area on the surface of the roll coating mechanism.

Description

Technical Field

[0001] The present invention relates to the field of anti-corrosion coating feeding equipment, and specifically refers to a feeding equipment for anti-corrosion coating of wood boards. Background Art

[0002] Wood boards are common wood material boards used in construction, decoration, etc. To achieve the anti-corrosion effect of wood boards, chemical preservatives need to be applied to the surface of the wood boards to endow them with properties such as anti-corrosion, moisture-proof, anti-fungal, anti-insect, anti-mildew, and waterproof, enabling them to be in direct contact with the soil and humid environment, and gradually becoming an ideal material for landscape and entertainment facilities such as outdoor paving, landscape pergolas, rest pavilions, and wooden swings. Wood wax oil is an anti-corrosion material suitable for anti-corrosion of wood boards. The wood boards coated with wood wax oil have good sun protection and anti-cracking effects and can resist the influence of climate such as rain erosion.

[0003] Wood wax oil has a relatively thin texture and good fluidity. During the feeding process, it is necessary to apply a thin layer of wood wax oil on the surface of the wood board multiple times to make the wood wax oil evenly adhere to the surface of the wood board. For wood boards with carvings, for example Figure 1 As shown, it has a flat structure and at the same time has a sunken carving structure in the middle position. The prior art generally uses a rubber roller feeding method to coat the wood wax oil on the surface of the wood board. During the coating process, due to the good fluidity of the wood wax oil, the wood wax oil easily accumulates in the recesses of the carvings. After the wood wax oil accumulates in the recesses, the color will be significantly deepened after drying, resulting in a significant color difference between the texture and the flat area and destroying the natural beauty of the wood. It is difficult for the prior art to overcome this technical problem.

[0004] Designing a feeding equipment for anti-corrosion coating of wood boards to solve the problems existing in the above prior art is the purpose of the research of the present invention. Summary of the Invention

[0005] Aiming at the problems existing in the above prior art, the present invention provides a feeding equipment for anti-corrosion coating of wood boards, which can effectively solve at least one of the problems existing in the above prior art.

[0006] The technical solution of the present invention is as follows:

[0007] A feeding equipment for anti-corrosion coating of wood boards includes:

[0008] A conveying mechanism for conveying wood boards;

[0009] The brushing mechanism is arranged above the conveying mechanism. The brushing mechanism is driven by a three-axis driving member. The brushing mechanism includes a feeding brush and a liquid outlet pipe connected to the feeding brush. The liquid outlet pipe is connected to an external anti-corrosion coating source. An installation frame is arranged on the brush head of the feeding brush. A longitudinal driving cylinder is arranged on the installation frame. The longitudinal driving cylinder drives a blocking member that blocks one side of the brush of the feeding brush. The longitudinal driving cylinder changes the effective length or rigidity of the brush of the feeding brush by driving the up-and-down position of the blocking member;

[0010] The roll coating mechanism is arranged above the conveying mechanism and on one side of the brushing mechanism;

[0011] The glue scraping mechanism is arranged above the conveying mechanism. The glue scraping mechanism is driven by a transverse movement driving member. The glue scraping mechanism includes a glue scraping member. The end of the glue scraping member abuts against the surface of the roll coating mechanism. The glue scraping member is used to scrape off the anti-corrosion coating in the corresponding area on the surface of the roll coating mechanism.

[0012] Further, the blocking member has a U-shaped structure. The open end of the blocking member is connected to the longitudinal driving cylinder. The transverse part of the blocking member is arranged at a gap on one side of the brush of the feeding brush.

[0013] Further, the blocking member includes a pair of connecting rods and an elastic member. The connecting rods are of L-shaped structure. The top ends of the connecting rods are connected to the longitudinal driving cylinder. The bottom ends of the connecting rods are opposite and spaced apart. The two ends of the elastic member are fixedly arranged on the installation frame. The elastic member passes around between the bottom ends of the pair of connecting rods. After the connecting rods are driven downward by the longitudinal driving cylinder, the connecting rods stretch the elastic member, thereby increasing the rigidity of the elastic member.

[0014] Further, the elastic member is a spring or a rubber band.

[0015] Further, the roll coating mechanism includes a pair of tangent rubber rollers. The space above the pair of rubber rollers forms an anti-corrosion coating containing groove. One of the rubber rollers is driven by a rotating mechanism. A liquid inlet pipe is arranged on the pair of rubber rollers. The liquid inlet pipe is connected to an external anti-corrosion coating source.

[0016] Further, the glue scraping member is a hopper. The end of the hopper abuts against the surface of the roll coating mechanism.

[0017] Further, the hopper is provided with a liquid level sensor and a liquid suction pipe. The liquid suction pipe is connected to an external negative pressure source.

[0018] Further, the brushing mechanism is provided with a feeding sensor.

[0019] Further, the control method includes:

[0020] Transversely move the brushing mechanism above the carved position of the wooden board through the three-axis driving member, and transversely move the glue scraping mechanism above the carved position of the wooden board through the transverse movement driving member;

[0021] Control the longitudinal driving cylinder to drive the blocking member to move downward, so that the blocking member blocks below the bristles of the feeding brush;

[0022] Control the three-axis driving member to drive the brushing mechanism to gradually move downward. During the process of the gradual downward movement of the brushing mechanism, control the longitudinal driving cylinder to drive the blocking member to move upward.

[0023] Therefore, the present invention provides the following effects and / or advantages:

[0024] The brushing mechanism provided in this application has a blocking member that can be driven up and down. The blocking member blocks on one side of the bristles of the feeding brush, changing the effective length and rigidity of the brush, and adapting to the relatively thin and good-fluidity wood wax oil. Specifically, after the blocking member moves downward, the effective length of the brush can be reduced and the rigidity of the brush can be increased, making the brush difficult to bend and the bending amount reduced, so that a large amount of wood wax oil accumulated at the bottom of the brush is slowly output. After the blocking member moves upward, the effective length of the brush can be increased and the rigidity of the brush can be reduced, making the brush easier to bend and the bending amount increased, so that a small amount of wood wax oil accumulated in the upper and middle parts of the brush is quickly output, thus achieving the technical effect of uniform brushing.

[0025] The glue scraping mechanism provided in this application can scrape the anti-corrosion coating on the surface of the roller coating mechanism at the corresponding position of the brushing mechanism, so that the roller coating mechanism does not apply the anti-corrosion coating to the corresponding area of the wooden board, preventing the repeated application of the anti-corrosion coating.

[0026] Other features and advantages of the present invention will be described in the subsequent description, and some of them will be obvious from the description or understood by implementing the present invention. The objectives and other advantages of the present invention are achieved and obtained by the structures specifically pointed out in the description and the drawings.

[0027] It should be understood that the above summary and the following detailed description of the present invention are exemplary and explanatory, and are intended to provide further explanation of the claimed invention. Brief Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of a wooden board with carvings.

[0029] Figure 2 It is a schematic structural diagram of an embodiment of the present invention.

[0030] Figure 3 It is Figure 2 a side view of

[0031] Figure 4 It is a schematic structural diagram of the brushing mechanism.

[0032] Figure 5 It is a schematic structural diagram of the roller coating mechanism and the glue scraping mechanism.

[0033] Figure 6 Schematic diagram of the working state of the feeding brush after the blocking member is lowered.

[0034] Figure 7 Schematic diagram of the working state of the feeding brush after the blocking member is lifted.

[0035] Explanation of the reference numerals:

[0036] Conveyor mechanism 1, brushing mechanism 2, feeding brush 21, liquid outlet pipe 22, mounting bracket 23, longitudinal driving cylinder 24, blocking member 25, connecting rod 251, elastic member 252, three-axis driving member 3, roller coating mechanism 4, liquid inlet pipe 41, glue scraping mechanism 5, glue scraping member 51, liquid suction pipe 52, transverse movement driving member 6. Specific embodiments

[0037] For the convenience of those skilled in the art to understand, the structure of the present invention will be further described in detail with reference to the accompanying drawings in the embodiments:

[0038] Reference Figure 2-5 , a feeding device for anti-corrosion coating of wood boards, comprising:

[0039] A conveyor mechanism 1 for conveying wood boards;

[0040] In this embodiment, the conveyor mechanism 1 may be a conveyor belt or the like, which is not limited herein, and is used to convey the wood boards forward. Moreover, the roller coating mechanism 4, the glue scraping mechanism 5, and the brushing mechanism 2 are sequentially arranged along the conveying direction of the conveyor mechanism 1.

[0041] The brushing mechanism 2 is arranged above the conveyor mechanism 1. The brushing mechanism 2 is driven by a three-axis driving member 3. The brushing mechanism 2 includes a feeding brush 21 and a liquid outlet pipe 22 connected to the feeding brush 21. The liquid outlet pipe 22 is connected to an external anti-corrosion coating source. The brush head of the feeding brush 21 is provided with a mounting bracket 23. The mounting bracket 23 is provided with a longitudinal driving cylinder 24. The longitudinal driving cylinder 24 drives a blocking member 25 that blocks one side of the brush of the feeding brush 21. The longitudinal driving cylinder 24 changes the effective length or rigidity of the brush of the feeding brush 21 by driving the up and down position of the blocking member 25;

[0042] The brushing mechanism 2 is one of the core improvements in this embodiment. By being driven by the three-axis driving member 3, it can realize horizontal movement and up and down movement. The function of the horizontal movement is that the positions where the patterns may be carved on different types of wood boards are different. Therefore, through the horizontal movement, the pattern positions can be aligned when the wood boards are conveyed to the conveyor mechanism 1. After the brushing mechanism 2 moves downward, it can contact the pattern positions of the wood boards, and thus apply the anti-corrosion coating to the wood boards by brushing.

[0043] Due to the easy flowability of the anti-corrosion coating, its viscosity is low. After being transported to the bristles of the feeding brush 21 through the liquid outlet pipe 22, the ability of the anti-corrosion coating to adhere to the feeding brush 21 is not strong and it is easy to accumulate at the bottom of the bristles. During the process that the first half of the wood board passes through the feeding brush 21, when the feeding brush 21 contacts the wood board, the bottom of the bristles is prone to large bending deformation, so that the anti-corrosion coating adhering to the bristles is quickly and largely released onto the wood board, forming an accumulation of anti-corrosion coating. When the second half of the wood board passes through the feeding brush 21, the anti-corrosion coating on the bristles is exhausted, resulting in great unevenness in the brushing of the carved area of the wood board.

[0044] Therefore, in this embodiment, the specific structure of the brushing mechanism 2 is optimized. The blocking member 25 blocked on one side of the bristles of the feeding brush 21 is driven by the longitudinal driving cylinder 24. After the blocking member 25 moves downward, it approaches the bottom of the bristles. The blocking member 25 can limit the free length of the bristles bending, making the whole bristles stiffer and enhancing the bending resistance. At this time, the deformation of the bristles is small, and the coating is mainly released through the tips of the bristles, with less oil output and accurate controllability, reducing the output speed of the wood wax oil and thus reducing the risk of accumulation on the wood board; when the blocking member moves upward and away from the bottom of the bristles, the length of the bendable part of the bristles can be increased, making the bristles softer and more elastic, thereby changing the effective length or rigidity of the bristles of the feeding brush 21. After the deformation of the bristles becomes large, the anti-corrosion coating uniformly seeps out from the bent hair slits, accelerating the output speed of the bristles. During the brushing process, control the blocking member 25 to move upward slowly and control the brushing mechanism 2 to move downward slowly, which can gradually increase the effective length of the bristles and reduce the rigidity of the bristles, so as to adapt to the aggregation characteristics of the easily flowing wood wax oil on the bristles. During the brushing process, first make the effective length of the bristles small and the rigidity large, and the wood wax oil accumulated at the bottom of the bristles can be slowly released, as Figure 6 shown. In the subsequent brushing, after the brushing mechanism 2 moves downward slowly, the middle and upper parts of the bristles begin to contact the wood board. At this time, make the effective length of the bristles large and the rigidity small, and the small amount of wood wax oil accumulated in the middle and upper parts of the bristles can be quickly released, as Figure 7 shown, so as to achieve the effect of uniform brushing.

[0045] In addition, for wood boards with dense patterns or large roughness, the upward movement speed of the blocking member 25 can be accelerated, or the initial height of the blocking member 25 can be increased, so as to accelerate the overall speed of the bristles releasing the wood wax oil, making the bristles better follow the natural undulation of the texture and penetrate into the recesses.

[0046] The roll coating mechanism 4 is arranged above the conveying mechanism 1 and on one side of the brushing mechanism 2;

[0047] The roll coating mechanism 4 of this embodiment directly adopts the prior art. The surface characteristics of the roll coating mechanism 4 are suitable for roll coating and feeding the flat part of the wood board without patterns.

[0048] The glue scraping mechanism 5 is arranged above the conveying mechanism 1. The glue scraping mechanism 5 is driven by a transverse driving member 6. The glue scraping mechanism 5 includes a glue scraping member 51. The end of the glue scraping member 51 abuts against the surface of the roll coating mechanism 4. The glue scraping member 51 is used to scrape off the anti-corrosion coating in the corresponding area on the surface of the roll coating mechanism 4.

[0049] Since the brushing mechanism 2 is provided above to brush the pattern of the wood board separately, and the anti-corrosion coating is uniformly covered on the surface of the roll coating mechanism 4, during the operation of the roll coating mechanism 4, it is necessary to scrape off the anti-corrosion coating in the area corresponding to the pattern of the wood board on the roll coating mechanism 4 to prevent multiple feeding on the pattern area of the wood board.

[0050] Further, the blocking member 25 has a U-shaped structure. The open end of the blocking member 25 is connected to the longitudinal driving cylinder 24. The transverse part of the blocking member 25 is arranged at a gap on one side of the bristles of the feeding brush 21.

[0051] In this embodiment, the longitudinal driving cylinder 24 drives the blocking member 25 to move up and down through the open end of the blocking member 25. The transverse part of the blocking member 25 blocks the rear end of the bristles of the feeding brush 21 corresponding to the conveying direction of the conveying mechanism 1, and is arranged at a gap so as not to affect the normal operation of the bristles during the up and down movement of the blocking member 25.

[0052] Further, the blocking member 25 includes a pair of connecting rods 251 and an elastic member 252. The connecting rods 251 have an L-shaped structure. The top ends of the connecting rods 251 are connected to the longitudinal driving cylinder 24. The bottom ends of the connecting rods 251 are opposite and spaced apart. The two ends of the elastic member 252 are fixedly arranged on the mounting frame 23. The elastic member 252 passes around between the bottom ends of the pair of connecting rods 251. After the connecting rods 251 are driven downward by the longitudinal driving cylinder 24, the connecting rods 251 stretch the elastic member 252, thereby increasing the rigidity of the elastic member 252.

[0053] Further, the elastic member 252 is a spring or a rubber band.

[0054] In this embodiment, by the relative arrangement of the L-shaped connecting rods 251, a spaced space is formed on one side of the brush. After the elastic member 252 winds around the bottom ends of a pair of the connecting rods 251, when the connecting rods 251 are driven by the longitudinal driving cylinder 24, the rigidity of the elastic member 252 can be changed. For example, after being driven downward, the connecting rods 251 stretch the elastic member 252, thereby increasing the rigidity of the elastic member 252; after being driven upward, the connecting rods 251 relax the elastic member 252, thereby reducing the rigidity of the elastic member 252. The purpose of such a setting is that since a large amount of wood wax oil accumulates at the bottom of the brush, at the beginning, the position of the blocking member 25 is lowered and the rigidity of the brush is increased so that it is difficult to bend, thereby slowly releasing the wood wax oil. Subsequently, the position of the blocking member 25 needs to be gradually raised and the rigidity of the brush needs to be reduced to make it easier to bend. By virtue of the characteristics of adding the elastic member 252 and the elastic member 252 winding around the connecting rod 251, after the lateral area of the elastic member 252 is lowered by the longitudinal driving cylinder 24, the elastic member 252 is tightened and its rigidity is increased, so as to tightly abut against one side of the brush, making it difficult to push the elastic member 252 to bend. When the lateral area of the elastic member 252 is raised by the longitudinal driving cylinder 24, the elastic member 252 is relaxed and thus easily deformed, and the bristles can push the elastic member 252 to bend, thereby achieving greater bending of the bristles.

[0055] Further, the roll coating mechanism 4 includes a pair of rubber rollers arranged tangentially, and a corrosion protection coating containing groove is formed in the space above the pair of rubber rollers. One of the rubber rollers is driven by a rotating mechanism, and a liquid inlet pipe 41 is arranged on the pair of rubber rollers, and the liquid inlet pipe 41 is connected to an external corrosion protection coating source.

[0056] Further, the rubber scraping member 51 is a hopper, and the end of the hopper abuts against the surface of the roll coating mechanism 4.

[0057] Further, the hopper is provided with a liquid level sensor and a liquid suction pipe 52, and the liquid suction pipe 52 is connected to an external negative pressure source.

[0058] In this embodiment, the rubber scraping member 51 is a hopper, so that the corrosion protection coating in the corresponding area on the surface of the roll coating mechanism 4 can be scraped and collected, and at the same time, it is temporarily stored on the hopper. When the temporary storage reaches a certain level, the liquid level sensor sends a signal, and the external negative pressure source is started to suck away the temporarily stored corrosion protection coating through the liquid suction pipe 52.

[0059] Further, the brush coating mechanism 2 is provided with a feeding sensor.

[0060] The feeding sensor faces the conveying mechanism 1, so that when the wooden board is conveyed to the lower part of the brush coating mechanism 2 corresponding to the conveying mechanism 1, the brush coating mechanism 2 can be accurately controlled to start working.

[0061] Further, the control method includes:

[0062] Translate the brushing mechanism 2 horizontally to above the carved position of the wooden board through the three-axis driving member 3, and translate the glue scraping mechanism 5 horizontally to above the carved position of the wooden board through the horizontal translation driving member 6;

[0063] Control the longitudinal driving cylinder 24 to drive the blocking member 25 to move downward so that the blocking member 25 blocks below the bristles of the feeding brush 21;

[0064] Control the three-axis driving member 3 to drive the brushing mechanism 2 to gradually move downward. During the process of the gradual downward movement of the brushing mechanism 2, control the longitudinal driving cylinder 24 to drive the blocking member 25 to move upward.

[0065] It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention can be implemented by means of hardware including several different elements and by means of a suitably programmed computer. In a unit claim listing several devices, several of these devices can be embodied by the same item of hardware. The use of the words first, second, and third, etc. does not denote any order. These words can be interpreted as names.

[0066] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0067] In the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

Claims

1. A feeding device for anti-corrosion coating of a board, characterized in that: Including: A conveying mechanism (1) for conveying wood boards; A brushing mechanism (2) is arranged above the conveying mechanism (1). The brushing mechanism (2) separately coats the carved positions of the wood boards. The brushing mechanism (2) is driven by a three-axis driving member (3). The brushing mechanism (2) includes a feeding brush (21) and a liquid outlet pipe (22) connected to the feeding brush (21). The liquid outlet pipe (22) is connected to an external anti-corrosion coating source. An installation frame (23) is arranged at the brush head of the feeding brush (21). A longitudinal driving cylinder (24) is arranged on the installation frame (23). The longitudinal driving cylinder (24) drives a blocking member (25) that blocks one side of the bristles of the feeding brush (21). The longitudinal driving cylinder (24) changes the effective length or rigidity of the bristles of the feeding brush (21) by driving the up and down position of the blocking member (25); A roll coating mechanism (4) is arranged above the conveying mechanism (1) and on one side of the brushing mechanism (2). The roll coating mechanism (4) performs roll coating on the flat part of the wood board where there is no carving; A glue scraping mechanism (5) is arranged above the conveying mechanism (1). The glue scraping mechanism (5) is driven by a transverse movement driving member (6). The glue scraping mechanism (5) includes a glue scraping member (51). The end of the glue scraping member (51) abuts against the surface of the roll coating mechanism (4). The glue scraping member (51) is used to scrape off the anti-corrosion coating in the corresponding area on the surface of the roll coating mechanism (4); The control method includes: Transversely moving the brushing mechanism (2) to above the carved position of the wood board through the three-axis driving member (3), and transversely moving the glue scraping mechanism (5) to above the carved position of the wood board through the transverse movement driving member (6); Controlling the longitudinal driving cylinder (24) to drive the blocking member (25) to move downward so that the blocking member (25) blocks below the bristles of the feeding brush (21); Controlling the three-axis driving member (3) to drive the brushing mechanism (2) to gradually move downward. During the process of the gradual downward movement of the brushing mechanism (2), controlling the longitudinal driving cylinder (24) to drive the blocking member (25) to move upward.

2. The feeding device for the anti-corrosion coating of the board according to claim 1, wherein: The blocking member (25) has a door-shaped structure. The open end of the blocking member (25) is connected to the longitudinal driving cylinder (24). The transverse part of the blocking member (25) is arranged at a gap on one side of the bristles of the feeding brush (21).

3. The feeding device for the anti-corrosion coating of the board according to claim 2, characterized in that: The blocking member (25) includes a pair of connecting rods (251) and an elastic member (252). The connecting rods (251) are of L-shaped structure. The top ends of the connecting rods (251) are connected to the longitudinal driving cylinder (24). The bottom ends of the connecting rods (251) are relatively arranged at intervals. Both ends of the elastic member (252) are fixedly arranged on the installation frame (23). The elastic member (252) passes around between the bottom ends of the pair of connecting rods (251). After the connecting rods (251) are driven downward by the longitudinal driving cylinder (24), the connecting rods (251) stretch the elastic member (252) so that the rigidity of the elastic member (252) increases.

4. The feeding device for the anti-corrosion coating of the sheet material according to claim 3, wherein: The elastic member (252) is a spring or a rubber band.

5. The feeding device for the anti-corrosion coating of the board according to claim 1, characterized in that: The roll coating mechanism (4) includes a pair of tangent rubber rollers. A space above the pair of rubber rollers forms an anti-corrosion coating accommodation groove. One of the rubber rollers is driven by a rotating mechanism. A liquid inlet pipe (41) is provided on the pair of rubber rollers, and the liquid inlet pipe (41) is connected to an external anti-corrosion coating source.

6. The feeding device for anti-corrosion coating of a sheet material according to claim 1, wherein: The rubber scraping member (51) is a hopper, and the end of the hopper abuts against the surface of the roll coating mechanism (4).

7. The feeding device for the anti-corrosion coating of the board according to claim 6, characterized in that: The hopper is provided with a liquid level sensor and a liquid suction pipe (52), and the liquid suction pipe (52) is connected to an external negative pressure source.

8. The feeding device for the anti-corrosion coating of the sheet material according to claim 1, characterized in that: The brush coating mechanism (2) is provided with a feed sensor.

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