Scraper type screen cloth composite coating device

Abstract

The invention belongs to the technical field of screen cloth preparation, and particularly relates to a scraper type screen cloth composite coating device which comprises an equipment body, a conveying belt and a scraper, a pushing piece used for scraping animal materials is arranged at the position, located at the front end of the scraper, of the equipment body, and the distance between the pushing piece and cloth is consistent with the distance between the scraper and the cloth. A bidirectional lead screw used for pushing the pushing piece to move is rotationally connected to the supporting piece, when the pushing piece moves, the scraping piece is driven to move synchronously, redundant paint on cloth is pushed to one side, the pushing piece and the scraper are consistent in height, and it is guaranteed that the paint on the cloth passing through the pushing piece can meet the needed thickness; when the coating is blocked by the scraper, the redundant coating is pushed by the scraper to enter the conduction channel of the pushing piece along the scraper and is extracted by the corrugated pipe, so that the coating higher than the gap between the pushing piece and the cloth is continuously sucked away through the left-right transverse reciprocating motion of the pushing piece, and the situation that the coating is blocked by the scraper and then accumulated at the scraper to overflow towards the two sides is avoided.

Description

Technical Field

[0001] The invention discloses a mesh cloth preparation device, in particular to a scraper type mesh cloth composite coating device. Background Art

[0002] Clean composite mesh cloth is to bond the woven single-layer mesh cloth with hot melt adhesive or other glue. At the same time, mesh cloths formed by different materials or weaving methods have different performances and effects. Therefore, the performance of the original mesh cloth will be increased after compounding. However, in the preparation process of composite mesh cloth, various equipment is required. Among them, looms, coating machines and hot pressing laminating machines are necessary devices in the preparation process. Normally, they are input into the hot pressing device after coating for shaping, or they are squeezed and shaped by the hot pressing roller when the rear end of the coating machine is rolled and pulled.

[0003] The coating machine is divided into a scraper coating machine and a drum coating machine. In the prior art, the scraper coating machine is to coat the material or glue to be coated on the fabric in front of the scraper, wait for the fabric to be rolled up and moved through the scraper, and the distance between the scraper and the fabric is the required thickness of the coating, so that when the fabric passes through the scraper, the excess coating will be blocked to ensure that the coating on the fabric is the required thickness, so that the subsequent items and fabrics that need to be composited are covered on the fabric and fixed by hot pressing. However, in the prior art, after the fabric passes through the scraper, the excess glue Or the material is blocked and attached to the scraper, and the cloth keeps moving, and more and more paint is blocked, which will cause paint accumulation, and thus overflow to both sides of the scraper, causing the overflowed material to be driven to the cloth at the rear end of the scraper, resulting in too much paint on the subsequent cloth. In the prior art, the material is blocked by a blocking plate set on the side, but this premise will first push too much paint on the scraper, which can easily cause the paint to be squeezed or penetrated, causing it to be transmitted backwards, or even penetrate into the cloth, thus causing the finalized cloth to fail to meet the standards or be defective. Based on the above problems, this application proposes a new solution, which allows the paint to be uniformly recovered in advance to avoid excessive transmission and accumulation at the scraper. Summary of the invention

[0004] The purpose of the present invention is to provide a scraper-type mesh composite coating device in order to solve the above-mentioned problems.

[0005] To achieve the above object, the present invention provides the following technical solution: A scraper-type mesh cloth composite coating device, including a device main body, a conveyor belt and a scraper. There is a cylinder on the upper end of the device main body for controlling the up and down movement of the scraper. There is a support member on the device main body connected to the scraper and the cylinder. There is a rotating roller one and a rotating roller two for squeezing the cloth on the upper end of the device main body. There is a pushing member for scraping the material at the front end of the scraper on the device main body. The distance between the pushing member and the cloth is the same as the distance between the scraper and the cloth. There is a bidirectional lead screw rotatably connected to the support member for pushing the pushing member to move. There is a slider on the pushing member embedded in the bidirectional lead screw. There are scraping blades for pushing the coating at the front and rear ends of the pushing member. There is a blocking blade one on the side of the pushing member close to the scraper. There are blocking blades two for blocking the coating on both the left and right sides of the device main body. The blocking blades two are located at the left and right ends of the scraper, and the two blocking blades two are respectively in contact with the front and rear surfaces of the moved pushing member; There is a chute for accommodating the movement of the pushing member on the blocking blade one. There are abutting blocks one and two at the front and rear ends of the chute for abutting against the pushing member and blocking the pushing member. There is a first spring between the abutting blocks one and two and the blocking blade one; There is an extraction device on the device main body. There is a corrugated pipe on the extraction device connected to the pushing member. The middle of the pushing member is in communication with the upper surface of the scraping blade and there is a conduction channel in the middle of the pushing member communicating with the corrugated pipe. The two scraping blades are connected by a connecting rod, and the connecting rod is rotatably connected to both scraping blades. And the scraping blade is in an interference state connection with the pushing member. There are drive components on both blocking blades two for driving the scraping blades on both sides of the pushing member to rotate.

[0006] Preferably, the abutting parts of the abutting blocks one and two with the pushing member are spherical. And the elastic force of the first spring is greater than the force for moving the pushing member, but less than the acting force between the pushing member and the blocking blade two.

[0007] Preferably, the drive component includes a pressing block slidably connected to the blocking blade two, and the pressing block abuts against the scraping blade that fits on the blocking blade two after movement. There is a first motor driven by the pressing block in the blocking blade two. There is a transmission chain in the blocking blade two meshing with the rotating shaft of the first motor. There is a moving block at the lower end of the transmission chain for abutting against the scraping blade.

[0008] Preferably, there are switches in both blocking blades two for abutting against the pressing block and controlling the opening of the first motor. Each time the switch controls the first motor to start, it will drive the transmission chain and the moving block to rotate one circle.

[0009] Preferably, a first rolling member and a second rolling member which are in contact with and pull the fabric are provided at the front end of the pushing member of the supporting member. The first rolling member and the second rolling member are respectively arranged on the left and right sides of the conveyor belt. The rotation directions of the first rolling member and the second rolling member are opposite, and a starting component for driving the first rolling member and the second rolling member to rotate is provided on the pushing member.

[0010] Preferably, the starting component includes two winding wheels that respectively drive the first rolling member and the second rolling member to rotate. A pulling rope is wound around the winding wheel, and one end of the pulling rope is wound around the winding wheel and the other end is connected to the pushing member. An adjusting component is provided between the winding wheel and the first rolling member and the second rolling member.

[0011] Preferably, the adjusting component includes a ratchet pawl arranged on the inner ring of the winding wheel. Ratchets that cooperate with the ratchet pawl are provided on the outer rings of the first rolling member and the second rolling member. A clockwork spring for driving the winding wheel to reset is provided between the winding wheel and the supporting member.

[0012] Preferably, the first rolling member and the second rolling member are symmetrically arranged. When the pushing member moves towards the second rolling member, the pulling rope on the first rolling member is pulled, and when the pushing member moves towards the first rolling member, the pulling rope on the second rolling member is pulled.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: First, after using this device, the paint is conveyed to the front end of the pushing member, and then the motor on the supporting member is turned on to control the rotation of the bidirectional lead screw. The slider is horizontally pushed through the groove of the bidirectional lead screw. When the pushing member moves, it drives the scraper to move synchronously and pushes the excess paint on the fabric to one side. The heights of the pushing member and the scraper are the same, ensuring that the paint on the fabric that can pass through the pushing member meets the required thickness, and the excess will be pushed by the scraper along the scraper into the conduction channel of the pushing member and be extracted by the corrugated pipe. Thus, by moving the pushing member horizontally back and forth left and right, the paint higher than the gap between the pushing member and the fabric is continuously sucked away, avoiding situations such as being blocked by the scraper and accumulating at the scraper and overflowing to both sides. After the coating is completed, the subsequent rotating roller 1 and rotating roller 2 are used for extrusion and adhesion, and at the same time, drying is carried out to achieve molding. At the same time, the inside of the subsequent rotating roller 2 for extrusion can also be electrically heated, and extrusion and synchronous heating and shaping are carried out during the extrusion. Second, when the pushing member moves, its side will move along the sliding groove of the first blocking piece, and first abut against the first abutting block, and drive the entire first blocking piece to move synchronously. The first blocking piece prevents the paint pushed by the scraping piece from flowing along the side to the scraper. Being blocked by the first blocking piece, it is prevented from flowing away. Secondly, when the first blocking piece is synchronously driven to abut against the second blocking piece, under the thrust of the second blocking piece and the pushing member, the first abutting block and the second abutting block will be pushed, causing the first spring inside to be compressed, and the first abutting block and the second abutting block will move backward to cancel the blocking of the pushing member and the scraping piece. When the scraping piece moves to abut against the second blocking piece, the pressing block will be pressed against the switch to turn on the first motor, causing the transmission chain to rotate and drive the connected moving block to move upward to push the scraping piece to rotate, so that the scraping piece at the abutting position with the pressing block rotates upward, while the other side of the scraping piece rotates downward. Thus, the scraping piece that has scraped the paint is inclined, causing the paint to flow into the pushing member and be drawn away for reuse. Secondly, the scraping piece on the other side abuts against the paint. Thus, when the pushing member is driven by the bidirectional lead screw to move backward and reset, the scraping piece on the other side can fit the paint to continue scraping off the excess paint. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of a scraper-type fabric composite coating device; Figure 2 is a schematic partial structure diagram of a scraper-type fabric composite coating device Figure 1 ; Figure 3 is a schematic partial structure diagram of a scraper-type fabric composite coating device Figure 2 ; Figure 4 is Figure 3 a partial enlarged schematic diagram at A; Figure 5 is a schematic structural diagram of the pushing member and the driving assembly of a scraper-type fabric composite coating device; Figure 6 is a schematic structural diagram of the pushing member and the second rolling member of a scraper-type fabric composite coating device; Figure 7 is a schematic structural diagram of the starting assembly of a scraper-type fabric composite coating device.

[0015] Reference numerals: 1, equipment main body; 2, conveyor belt; 3, scraper; 4, cylinder; 5, support member; 6, first rotating roller; 7, second rotating roller; 8, pushing member; 9, bidirectional lead screw; 10, slider; 11, scraping blade; 12, first blocking piece; 13, second blocking piece; 14, chute; 15, first abutting block; 16, second abutting block; 17, first spring; 18, extraction device; 19, corrugated pipe; 20, pressing block; 21, first motor; 22, drive chain; 23, moving block; 24, switch; 25, first rolling member; 26, second rolling member; 27, winding wheel; 28, pulling rope; 29, pawl; 30, ratchet; 31, hairspring; 32, connecting rod. Detailed implementation manner

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] A scraper-type mesh cloth composite coating machine, as Figures 1 - 7 shown, includes an equipment main body 1, a conveyor belt 2 and a scraper 3. A cylinder 4 for controlling the up and down movement of the scraper 3 is provided at the upper end of the equipment main body 1. In the prior art, the coating is poured onto the cloth at the front end of the scraping blade 11, and then the mesh cloth with the coating is sent to the scraper 3 through the conveyor belt 2. At the same time, the height of the scraper 3 is adjusted in advance to ensure that the passing material cloth is of the required thickness, and the excess coating is blocked by the scraper 3. However, after continuous accumulation, it will cause too much to overflow to both sides, and even because of too much coating, it will be conveyed backward, resulting in too much coating in some positions during lamination, extrusion, or penetration everywhere after lamination, etc., resulting in defective products and damaging the cloth. In the prior art, an opening is provided on the scraper 3 and is connected to a device for extraction, so as to extract the coating blocked by the scraper 3. However, if the opening is opened and the extraction force is too large, it may cause too much coating to be extracted, resulting in insufficient coating or the adsorption force of the extraction causing the cloth to move and shift. If the extraction force is too small, because it can only pass through the scraper 3 and is blocked, the continuously accumulated excessive coating will cause blockage, and it is still easy to have the situation of excessive accumulated coating being forced to be extruded and penetrating backward.

[0018] After using this device, a support member 5 connected to the scraper 3 and the cylinder 4 is provided on the device main body 1. A first rotating roller 6 and a second rotating roller 7 for extruding the cloth are provided at the upper end of the device main body 1. A pushing member 8 for scraping the material is provided at the front end of the scraper 3 on the device main body 1. The distance between the pushing member 8 and the cloth is the same as the distance between the scraper 3 and the cloth. A bidirectional lead screw 9 for pushing the pushing member 8 to move is rotatably connected to the support member 5. A slider 10 inserted into the bidirectional lead screw is provided on the pushing member 8. Scraping blades 11 for pushing the paint are provided at the front and rear ends of the pushing member 8. A first blocking piece 12 is provided on the side of the pushing member 8 close to the scraper 3. Second blocking pieces 13 for blocking the paint are provided on both the left and right sides of the device main body 1. The second blocking pieces 13 are located at the left and right ends of the scraper 3, and the two second blocking pieces 13 are respectively in contact with the front and rear surfaces of the moved pushing member 8. By providing the pushing member 8 at the front end of the scraper 3, the paint is conveyed to the front end of the pushing member 8. The conveyor belt 2 drives the mesh cloth and the paint to move synchronously. Then, by turning on the motor that controls the bidirectional lead screw 9, the groove on the bidirectional lead screw pushes the slider 10, driving the pushing member 8 to move together. When the pushing member 8 moves from the left side, due to being restricted by the first blocking piece 12 and being pushed by the bidirectional lead screw 9, it can only move horizontally, and the scraping blade 11 is driven by the left side to move to the right. When moving, it moves along the chute 14 of the first blocking piece 12 until it abuts against the first abutting block 15. The first blocking piece 12 is provided with a chute 14 for accommodating the movement of the pushing member 8. The front and rear ends of the chute 14 are provided with a first abutting block 15 and a second abutting block 16 that abut against and block the pushing member 8. A first spring 17 is provided between the first abutting block 15 and the second abutting block 16 and the first blocking piece 12. The abutting parts of the first abutting block 15 and the second abutting block 16 with the pushing member 8 are spherical, and the elastic force of the first spring 17 is greater than the force for the pushing member 8 to move, but less than the acting force between the pushing member 8 and the second blocking piece 13. Thus, the first blocking piece 12 is synchronously driven to move by the first abutting block 15. The paint on the side of the pushing member 8 and the scraping blade 11 is blocked by the distance that the first blocking piece 12 extends beyond the scraping blade 11. Thus, when the pushing member 8 drives the scraping blade 11 and the first blocking piece 12 to move synchronously, when the scraping blade 11 pushes the excess paint to overflow to the side, it will be blocked by the first blocking piece 12 and enter the pushing member 8. Thus, when moving to the rightmost side and the first blocking piece 12 abuts against the second blocking piece 13, at this time, when the pushing member 8 cannot move further, it is continuously pushed by the bidirectional lead screw 9. Thus, under the acting force between the pushing member 8 and the second blocking piece 13, the first abutting block 15 will be compressed inward, and when continuing to move, it will also abut against and compress the second abutting block 16 together, causing the first spring 17 to be compressed. Driving components for driving the scraping blades 11 on both sides of the pushing member 8 to rotate are provided on both of the second blocking pieces 13.The driving component includes a pressing block 20 that is slidably connected to the second baffle 13, and the pressing block 20 abuts against the scraping blade 11 that fits against the second baffle 13 after moving. A first motor 21 driven by the pressing block 20 is provided inside the second baffle 13. A transmission chain 22 meshing with the rotating shaft of the first motor 21 is provided inside the second baffle 13. A moving block 23 that abuts against the scraping blade 11 is provided at the lower end of the transmission chain 22. A switch 24 that abuts against the pressing block 20 and controls the start of the first motor 21 is provided inside the two second baffles 13. When the switch 24 controls the first motor 21 to start once, it will drive the transmission chain 22 and the moving block 23 to rotate one circle, thereby driving the scraping blade 11 to abut against the pressing block 20 and push the pressing block 20 to move backward. At the same time, the switch 24 that controls the first motor 21 is pressed to turn on, so that the first motor 21 drives the meshing transmission chain 22 to move. The transmission chain 22 drives the moving block 23 upward to first push the pressing block 20 to continue moving backward, and then abut against the scraping blade 11. Thus, when the moving block 23 continues to move upward, it will push the scraping blade 11 to rotate. At the same time, due to the pressing force of the pushing member 8 that continues to move and the thrust of the moving block 23, the scraping blade 11 rotates and tilts. Thus, the remaining paint above is shoveled upward, and the paint on the tilted scraping blade 11 flows downward and pours into the pushing member 8.

[0019] The excess coating is sucked away by the suction force of the extraction device 18 as the material floods into the pusher 8 and reaches the conduction channel, and is uniformly recycled through the transmission of the corrugated pipe 19, reducing unnecessary waste. Moreover, when the corrugated pipe 19 is compressed and extended, it can achieve the effect of not hindering the movement of the pusher 8. An extraction device 18 is provided on the equipment main body 1, and a corrugated pipe 19 connected to the pusher 8 is provided on the extraction device 18. The middle part of the pusher 8 is in conduction with the upper surface of the wiper 11, and a conduction channel communicating with the corrugated pipe 19 is provided at the middle part of the pusher 8. The two wipers 11 are connected by a connecting rod 32, and the connecting rod 32 is rotatably connected to both wipers 11. The wiper 11 and the pusher 8 are connected in an interference fit state. After the first motor 21 is driven once, it will drive the transmission chain 22 to move one circle, and drive the moving block 23 to reset. After canceling the restriction on the pressing block 20, the pressing block 20 will be driven by the spring in the switch 24 to reset. At the same time, when the pusher 8 moves to the right stop piece 13, it is continuously pushed by the bidirectional lead screw 9 to reset and move back towards the left stop piece 13. After the right wiper 11 is pushed to rotate upwards, it will drive the connecting rod 32 to rotate and move at the same time, synchronously pulling the left wiper 11 to rotate downwards and fit on the coating on the mesh fabric. It is driven by the pusher 8 to reset. At the same time, the wiper 11 normally rotates with the pusher 8 and will not rotate randomly and be too loose. It is in an interference fit state and will only rotate when the pushing force is greater than the friction between the connections. When the pusher 8 resets, it first abuts against the abutting block 16 and drives the stop piece 12 to move backward synchronously. When the stop piece 12 fits on the left stop piece 13, it is reset in the same way as the right stop piece 13. And the scraper 3 is also driven to rotate, driving the right scraper 3 to fit the coating again. Wait for the pusher 8 to continue to move to the right and so on to achieve the effect of scraping off the excess coating. There is no need to transfer to the scraper 3 to compound the thickness, and it also avoids the situation of excessive coating accumulation at the scraper 3. The excess coating is scraped off by the left and right reciprocation of the wiper 11 and the pusher 8. Under the action of the stop piece 12 and the stop piece 13, it is ensured that the coating will not overflow. At the same time, the conduction channel is blocked by the pusher 8, and the extraction wind force will not extract too much coating, nor will it cause the fabric to shift. Secondly, the wiper 11 can be inclined and blocked on the side, and it will not cause the coating to accumulate on the wiper 11. Therefore, compared with the prior art of directly opening an extraction channel on the scraper 3, if the extraction force is large, it is easy to suck the fabric away together. If the extraction is small, it will continuously accumulate at the scraper 3 and still easily block the extraction channel, and overflow to both sides and flow away, or even cause the excess material to flow backward, resulting in the fabric not being flat enough or defective products. In this application, through the left and right movement of the pusher 8 and the wiper 11, after pushing to the right once, it is changed to the left, so as to switch to avoid blockage. At the same time, the blocking of the pusher 8 and the wiper 11 will not affect the fabric. Secondly, through the blocking of the stop piece 12, it is avoided to overflow to the side.

[0020] The support member 5 is provided at the front end of the pushing member 8 with a first rolling member 25 and a second rolling member 26 that are in contact with the fabric and pull the fabric. The first rolling member 25 and the second rolling member 26 are respectively arranged on the left and right sides of the conveyor belt 2. The rotation directions of the first rolling member 25 and the second rolling member 26 are opposite. The pushing member 8 is provided with a starting assembly for driving the rotation of the first rolling member 25 and the second rolling member 26. The starting assembly includes two winding wheels 27 that respectively drive the rotation of the first rolling member 25 and the second rolling member 26. A pulling rope 28 is wound around the winding wheel 27, and one end of the pulling rope 28 is wound around the winding wheel 27 and the other end is connected to the pushing member 8. An adjusting assembly is provided between the winding wheel 27 and the first rolling member 25 and the second rolling member 26. The adjusting assembly includes a pawl 29 arranged on the inner circle of the winding wheel 27, and ratchets 30 that cooperate with the pawl 29 are arranged on the outer circles of the first rolling member 25 and the second rolling member 26. A hairspring 31 for driving the winding wheel 27 to reset is provided between the winding wheel 27 and the support member 5. The first rolling member 25 and the second rolling member 26 are symmetrically arranged. When the pushing member 8 moves towards the second rolling member 26, the pulling rope 28 on the first rolling member 25 is pulled, and when the pushing member 8 moves towards the first rolling member 25, the pulling rope 28 on the second rolling member 26 is pulled. Finally, when the pushing member 8 moves towards the second blocking piece 13 on the right, the pulling rope 28 on the left winding wheel 27 will be pulled first, and the winding wheel 27 will be driven to rotate. At the same time, the hairspring 31 will be compressed. Driven by the pulling of the pulling rope 28, the winding wheel 27 rotates, and the internal pawl 29 will drive the engaged ratchet 30 to rotate, thereby driving the first rolling member 25 to rotate and pulling the abutting fabric to the left side. This is opposite to the pushing force of the pushing member 8. Due to the pushing force of the pushing member 8, the fabric wrinkles and moves. The first rolling member 25 can play a role in pulling back and flattening, and reduce the occurrence of wrinkles. At the same time, when the pushing member 8 moves to the right, the pulling rope 28 of the winding wheel 27 at the second rolling member 26 will continuously slacken. As the pulling force of the hairspring 31 in the right winding wheel 27 decreases, the winding wheel 27 will be driven to reset and rewind the pulling rope 28. And when the winding wheel 27 at the second rolling member 26 resets, the pawl 29 will not engage with the ratchet 30. Thus, the right winding wheel 27 idles and the second rolling member 26 does not rotate. Through this setting, it is also avoided that the second rolling member 26 rotates and pulls synchronously with the pushing member 8, ensuring that only the first rolling member 25 and the pushing member 8 act on each other. On the contrary, when the pushing member 8 reaches the second blocking piece 13 on the right, it will reset and continue to pull the pulling rope 28 of the right winding wheel 27, thereby driving the second rolling member 26 to rotate and push in the opposite direction to the pushing member 8, reducing the movement of the fabric, and the left winding wheel 27 will reset. Thus, it reciprocates synchronously with the pushing member 8, achieving the effect of regularizing the fabric, reducing wrinkles and reducing defective products.

[0021] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0022] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A scraping-type mesh cloth composite coating device, comprising a device main body (1), a conveyor belt (2) and a scraper (3). A cylinder (4) for controlling the up and down movement of the scraper (3) is provided at the upper end of the device main body (1). A support member (5) connected to the scraper (3) and the cylinder (4) is provided on the device main body (1). A rotating roller one (6) and a rotating roller two (7) for extruding the cloth are provided at the upper end of the device main body (1). It is characterized in that: At the front end of the scraper (3) of the device main body (1), there is a pushing member (8) for scraping the material. The distance between the pushing member (8) and the fabric is the same as the distance between the scraper (3) and the fabric. A bidirectional lead screw (9) for pushing the pushing member (8) to move is rotatably connected to the support member (5). A slider (10) embedded in the bidirectional lead screw is provided on the pushing member (8). Scraping blades (11) for pushing the coating are provided at the front and rear ends of the pushing member (8). A first blocking piece (12) is provided on the side of the pushing member (8) close to the scraper (3). Second blocking pieces (13) for blocking the coating are provided on both the left and right sides of the device main body (1). The second blocking pieces (13) are located at the left and right ends of the scraper (3), and the two second blocking pieces (13) are respectively in contact with the front and rear surfaces of the moved pushing member (8). A chute (14) for accommodating the movement of the pushing member (8) is provided on the first blocking piece (12). At the front and rear ends of the chute (14), there are a first abutting block (15) and a second abutting block (16) that are in contact with the pushing member (8) and block the pushing member (8). A first spring (17) is provided between the first abutting block (15) and the second abutting block (16) and the first blocking piece (12). An extraction device (18) is provided on the device main body (1). A corrugated pipe (19) connected to the pushing member (8) is provided on the extraction device (18). The middle part of the pushing member (8) is in communication with the upper surface of the scraping blade (11), and a conduction channel communicating with the corrugated pipe (19) is provided at the middle part of the pushing member (8). The two scraping blades (11) are connected by a connecting rod (32). The connecting rod (32) is rotatably connected to both scraping blades (11), and the scraping blade (11) is in an interference fit state with the pushing member (8). Driving components for driving the scraping blades (11) on both sides of the pushing member (8) to rotate are provided on both the second blocking pieces (13).

2. The scraping-type mesh cloth composite coating device according to claim 1, characterized in that: The contact parts of the first abutting block (15) and the second abutting block (16) with the pushing member (8) are spherical. The elastic force of the first spring (17) is greater than the force for the pushing member (8) to move, but less than the acting force between the pushing member (8) and the second blocking piece (13).

3. The scraping-type mesh cloth composite coating device according to claim 1, characterized in that: The driving component includes a pressing block (20) slidably connected to the second blocking piece (13). The pressing block (20) is in contact with the scraping blade (11) that fits on the second blocking piece (13) after moving. A first motor (21) driven by the pressing block (20) is provided inside the second blocking piece (13). A transmission chain (22) meshing with the rotating shaft of the first motor (21) is provided inside the second blocking piece (13). A moving block (23) in contact with the scraping blade (11) is provided at the lower end of the transmission chain (22) where the transmission chain (22) is located.

4. The scraping-type mesh cloth composite coating device according to claim 3, characterized in that: Switches (24) in contact with the pressing block (20) and controlling the first motor (21) to start are provided inside the two second blocking pieces (13). Each time the switch (24) controls the first motor (21) to start, it will drive the transmission chain (22) and the moving block (23) to rotate one circle.

5. The scraping-type mesh cloth composite coating device according to claim 1, characterized in that: The support member (5) is provided at the front end of the pushing member (8) with a first rolling member (25) and a second rolling member (26) that are in contact with the fabric and pull the fabric. The first rolling member (25) and the second rolling member (26) are respectively arranged on the left and right sides of the conveyor belt (2). The first rolling member (25) and the second rolling member (26) rotate in opposite directions. The pushing member (8) is provided with a starting component for driving the first rolling member (25) and the second rolling member (26) to rotate.

6. The scraping-type mesh cloth composite coating device according to claim 5, characterized in that: The starting component includes two winding wheels (27) that respectively drive the first rolling member (25) and the second rolling member (26) to rotate. A pulling rope (28) is wound around the winding wheel (27), and one end of the pulling rope (28) is wound around the winding wheel (27) and the other end is connected to the pushing member (8). An adjusting component is provided between the winding wheel (27) and the first rolling member (25) and the second rolling member (26).

7. The scraping-type mesh cloth composite coating device according to claim 6, characterized in that: The adjusting component includes a ratchet pawl (29) arranged on the inner ring of the winding wheel (27). Ratchets (30) that cooperate with the ratchet pawl (29) are provided on the outer rings of the first rolling member (25) and the second rolling member (26). A spring (31) for driving the winding wheel (27) to reset is provided between the winding wheel (27) and the support member (5).

8. The scraping-type mesh cloth composite coating device according to claim 6, characterized in that: The first rolling member (25) and the second rolling member (26) are symmetrically arranged. When the pushing member (8) moves towards the second rolling member (26), the pulling rope (28) on the first rolling member (25) is pulled, and when the pushing member (8) moves towards the first rolling member (25), the pulling rope (28) on the second rolling member (26) is pulled.

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