Double host composite curtain coating machine

Abstract

The present application relates to the technical field of lamination machine, in particular to a double-host composite lamination machine, which comprises a lamination frame, a winding roller, a steering roller, a composite roller and a flat die head are arranged on the lamination frame, the flat die head is located between the steering roller and the composite roller, further comprising a glue scraping mechanism, the glue scraping mechanism comprises a glue scraping plate attached to the bottom of the composite roller, and a cleaning strip capable of reciprocating is arranged on the glue scraping plate; a deep cleaning mechanism, the deep cleaning mechanism comprises a driving shaft and a turntable arranged on both sides of the driving shaft, a plurality of cleaning rollers arranged in a circular array around the driving shaft are arranged on the turntable, the cleaning rollers are rotatably connected to the turntable, and one end of the cleaning rollers is provided with a driven gear. The present application constructs a progressive composite roller cleaning process from rough scraping to fine cleaning through the cooperation of the glue scraping mechanism and the deep cleaning mechanism, the two cooperate with each other to realize multiple cleaning of the surface of the composite roller, effectively prevent the protrusion caused by waste material during compounding, and ensure the flatness of the lamination layer and the compounding quality.

Description

Technical Field

[0001] This invention relates to the field of coating machine technology, specifically to a dual-main-machine composite coating machine. Background Technology

[0002] A coating machine, also known as an extrusion laminating machine or a casting laminating machine, is a type of extrusion molding machinery. It has advantages such as high degree of automation, simple operation, fast production speed, uniform coating thickness, and high adhesion strength. It is widely used in surface coating processing of substrates such as paper, plastic film, and non-woven fabric.

[0003] In the lamination process, molten lamination material is extruded from a flat die and coated onto the surface of the substrate. The substrate then carries the lamination layer between the lamination roller and the pressing roller. Under the pressing action of the lamination roller, the lamination layer and the substrate are laminated. However, during the lamination process, some of the molten lamination material inevitably adheres to the surface of the lamination roller. As the production time increases, this waste material gradually accumulates on the surface of the lamination roller, cools and solidifies, which not only affects the smoothness and lamination quality of the subsequent lamination layer, but may also cause defects such as bumps and scratches on the product surface, seriously affecting product quality and production efficiency.

[0004] Currently, the cleaning of waste on the surface of composite rollers is mostly done by scraping. A scraper is placed near the composite roller, and the waste is scraped off by contact between the scraper and the surface of the composite roller. This method can remove a relatively thick layer of waste on the surface of the composite roller, but it is difficult to remove stubborn waste that remains in the micro-texture of the surface of the composite roller. The scraped waste tends to accumulate on the scraper, requiring frequent manual cleaning, and the scraper itself also needs to be cleaned and maintained after long-term use. Summary of the Invention

[0005] To address the aforementioned shortcomings of existing technologies, this invention provides a dual-host composite coating machine, which can effectively solve the problem of inadequate cleaning affecting the smoothness of the coating layer and the quality of the composite process during lamination.

[0006] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a dual-main-machine composite coating machine, including a coating frame, wherein the coating frame is provided with a take-up roller, a guide roller, a composite roller, and a flat die head, and the flat die head is located between the guide roller and the composite roller, and further includes: The glue scraping mechanism includes a glue scraper that is in contact with the bottom of the composite roller, and the glue scraper is provided with a cleaning strip that can move back and forth. A deep cleaning mechanism includes a drive shaft and turntables on both sides of the drive shaft. The turntables are provided with multiple sets of cleaning rollers arranged in a circular array around the drive shaft. The cleaning rollers are rotatably connected to the turntables, and one end of each cleaning roller is provided with a driven gear.

[0007] Furthermore, the adhesive scraping mechanism also includes an adhesive collection box located at the bottom of the coating frame, and the adhesive scraper is fixed on the adhesive collection box. A reciprocating screw is rotatably mounted on the adhesive collection box, and the reciprocating screw is driven and connected to the cleaning strip.

[0008] Furthermore, the scraper is inclined, and the angle between the side of the scraper that contacts the cleaning strip and the horizontal plane is less than 90°.

[0009] Furthermore, the coating frame is provided with a transmission gear, and one end of the composite roller is provided with a drive gear, which is meshed with the transmission gear. The driven gear on the cleaning roller near the composite roller is meshed with the transmission gear.

[0010] Furthermore, the outer circumferential surface of the turntable is provided with arc-shaped guide bars, and the number of arc-shaped guide bars corresponds to the number of cleaning rollers.

[0011] Furthermore, it also includes a spraying mechanism, which includes a liquid storage device disposed on one side of the coating frame, and the liquid storage device is provided with multiple sets of liquid outlet holes arranged at equal intervals. The liquid storage device is provided with a nozzle that communicates with the liquid outlet holes and sprays in the direction of the composite roller. An on / off switch is slidably installed on the liquid storage device away from the fixed end, and an elastic element is provided between the on / off switch and the coating frame.

[0012] Furthermore, the on / off switch is provided with multiple sets of drain holes that are equally spaced, the number of drain holes being the same as the number of outlet holes, and in the initial state, the drain holes and outlet holes are misaligned.

[0013] Furthermore, the thickness of the arc-shaped guide bar gradually increases from one end near the composite roller toward the other end, and the thickness of the thickest end of the arc-shaped guide bar is the same as the distance between the liquid outlet hole and the liquid draining through hole.

[0014] Furthermore, one end of the reciprocating lead screw is provided with a pulley one, and one end of the drive shaft is provided with a pulley two. The pulley one and the pulley two are connected by a toothed belt drive, and the diameter of the pulley two is larger than the diameter of the pulley one. Beneficial effects

[0015] The technical solution provided by this invention has the following advantages compared with the known prior art: I. This invention constructs a progressive composite roller cleaning process from coarse scraping to fine cleaning through the coordinated operation of a scraping mechanism and a deep cleaning mechanism. The scraping mechanism is responsible for scraping off the thicker waste layer on the surface of the composite roller, playing a preliminary cleaning role; the deep cleaning mechanism, through the wiping and scraping action of the cleaning roller, performs deep cleaning of the residual waste that the scraping mechanism could not completely remove. The two work together and complement each other to achieve multiple cleaning of the surface of the composite roller, effectively preventing the protrusions caused by waste during lamination, and ensuring the flatness of the coating layer and the quality of the composite.

[0016] II. The deep cleaning mechanism adopts a structure design in which multiple sets of cleaning rollers are arranged in a circular array and enter the cleaning station in turn. This enables continuous and uninterrupted cleaning of the surface of the composite roller. The cleaning rollers are linked to the composite rollers through a gear transmission chain. The rotation direction of the cleaning rollers is the same as that of the composite rollers. A strong relative motion is formed between the contact parts of the two, which generates a stronger shearing and wiping effect. This can effectively remove stubborn waste deposits. The multiple sets of cleaning rollers take turns to work in turn, avoiding the decline in cleaning effect caused by a single cleaning component working for a long time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional schematic diagram of the present invention; Figure 3 This is a schematic diagram of the adhesive scraping mechanism of the present invention; Figure 4 This is a schematic diagram of the deep cleaning mechanism of the present invention; Figure 5 This is a schematic diagram showing the connection between the deep cleaning mechanism and the composite roller of the present invention; Figure 6 This is a schematic diagram of the spraying mechanism of the present invention; Figure 7 This is a partial cross-sectional schematic diagram of the spraying structure of the present invention; Figure 8 This is a schematic diagram showing the connection between the adhesive scraping mechanism and the deep cleaning mechanism of the present invention.

[0019] Reference numerals: 1. Coating frame; 11. Take-up roller; 12. Guide roller; 13. Composite roller; 131. Drive gear; 14. Flat die head; 15. Transmission gear; 16. Pulley one; 17. Toothed belt; 18. Pulley two; 2. Glue scraping mechanism; 21. Glue collection box; 22. Glue scraper; 23. Cleaning strip; 24. Reciprocating screw; 3. Deep cleaning mechanism; 31. Drive shaft; 32. Turntable; 321. Arc-shaped guide strip; 33. Cleaning roller; 331. Driven gear; 4. Spraying mechanism; 41. Liquid storage component; 411. Liquid outlet; 42. On / off switch; 421. Drainage through hole; 43. Elastic component; 44. Spray head. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] The present invention will be further described below with reference to embodiments.

[0022] See attached document Figure 1-8 The dual-host composite coating machine includes a coating frame 1, which serves as the basic support structure for the entire equipment and is used to install and support various functional components. The coating frame 1 is equipped with a take-up roller 11, a guide roller 12, a composite roller 13, and a flat die head 14, with the flat die head 14 located between the guide roller 12 and the composite roller 13. The take-up roller 11 is rotatably mounted at one end of the coating frame 1 and is used to take up the finished material that has completed the coating composite process. The guide roller 12 is rotatably mounted in the middle area of ​​the coating frame 1 and is used to guide and turn the running direction of the substrate so that the substrate can pass through each processing station in sequence according to the preset path. The composite roller 13 is rotatably mounted on the coating frame 1 and is located downstream of the guide roller 12. It is used to press and composite the coating layer with the substrate. The flat die head 14 is fixedly mounted on the coating frame 1 and is located between the guide roller 12 and the composite roller 13. The extrusion direction of the flat die head 14 is towards the substrate running path between the guide roller 12 and the composite roller 13. It is used to extrude the molten coating material in a uniform film form and coat it on the surface of the substrate. The scraping mechanism 2 for initial cleaning is located below the composite roller 13. The scraping mechanism 2 includes a glue collection box 21 fixedly installed at the bottom of the coating frame 1. The glue collection box 21 is a box structure with an open top, used to collect waste glue scraped from the surface of the composite roller 13, so as to avoid waste material from scattering inside the equipment or the working environment and causing pollution. The scraper 22 is fixed on the glue collection box 21. The upper end of the scraper 22 is in contact with the bottom surface of the composite roller 13. Specifically, the scraper 22 is inclined, and the angle between the side of the scraper 22 that contacts the cleaning strip 23 and the horizontal plane is less than 90°. This tilt angle design has multiple technical advantages: First, the tilt allows the upper end of the scraper 22 to contact the surface of the composite roller 13 at a smaller angle of entry, ensuring effective scraping while avoiding scratches on the surface of the composite roller 13; second, the tilted surface facilitates the scraped waste material to slide into the collection box 21 under gravity, preventing waste material from accumulating on the scraper 22; third, the tilt angle of less than 90° creates a wedge-shaped space between the scraper 22 and the composite roller 13, which facilitates the smooth discharge of waste material after it is peeled off the surface of the composite roller 13. Additionally, the scraper 22... The cleaning strip 23 is provided on the 2nd plate and is slidably mounted on the scraper plate 22. The reciprocating screw 24 is rotatably mounted on the glue collection box 21 and is driven by the cleaning strip 23. Specifically, the cleaning strip 23 is provided with a threaded slider or nut structure that cooperates with the reciprocating screw 24. When the reciprocating screw 24 rotates, the cleaning strip 23 is driven to reciprocate along the length of the scraper plate 22 through the threaded engagement. The cleaning frequency can be set according to the actual situation by controlling the connection between the timer and the drive device that drives the reciprocating screw 24. The deep cleaning mechanism 3 is located on one side of the composite roller 13, including a drive shaft 31 and turntables 32 located on both sides of the drive shaft 31. The drive shaft 31 is rotatably mounted on the coating frame 1. One end of the drive shaft 31 is connected to an external drive motor (not shown in the figure), which drives the drive shaft 31 to rotate. There are two turntables 32, which are fixedly mounted on both ends of the drive shaft 31. The two turntables 32 are arranged in parallel and are coaxially fixedly connected to the drive shaft 31, rotating synchronously with the drive shaft 31. The turntables 32 are provided with multiple sets of cleaning rollers 33 arranged in a circular array around the drive shaft 31. Specifically, in this embodiment, each turntable 32 is provided with four sets of cleaning rollers 33. The four sets of cleaning rollers 33 are evenly distributed along the circumference of the turntable 32, and the included angle between two adjacent sets of cleaning rollers 33 is 90°. The cleaning rollers 33 are cylindrical rollers with bristles or flexible scrapers on their outer surface. The cleaning roller 33 is in contact with the surface of the composite roller 13 and performs cleaning operations. The cleaning roller 33 is rotatably connected to the turntable 32. Specifically, the two ends of the cleaning roller 33 are respectively mounted on the corresponding positions of the two turntables 32 through bearings, so that the cleaning roller 33 can rotate freely around its own axis. One end of the cleaning roller 33 is provided with a driven gear 331, which is fixedly installed at the end of the cleaning roller 33 and rotates synchronously with the cleaning roller 33. The coating frame 1 is provided with a transmission gear 15, which is rotatably installed on the coating frame 1 and located between the composite roller 13 and the deep cleaning mechanism 3. One end of the composite roller 13 is provided with a drive gear 131, which is fixedly installed at the end of the composite roller 13 and rotates synchronously with the composite roller 13. The drive gear 131 is meshed with the transmission gear 15. The driven gear 331 on the cleaning roller 33 on the side closer to the composite roller 13 is meshed with the transmission gear 15.

[0023] In the above technical solution, when the composite roller 13 rotates under external drive, it drives the drive gear 131 to rotate synchronously. The drive gear 131 drives the transmission gear 15 to rotate through meshing transmission. The transmission gear 15 then drives the driven gear 331 to rotate through meshing transmission. The driven gear 331 drives the cleaning roller 33 to rotate around its own axis. Through this transmission chain, the rotational motion of the cleaning roller 33 and the rotational motion of the composite roller 13 are linked. When the composite roller 13 rotates, the cleaning roller 33 also rotates, and the two rotate in the same direction. This creates a relative motion in opposite directions between the surfaces of the cleaning roller 33 and the composite roller 13, effectively enhancing the wiping and cleaning effect of the cleaning roller 33 on the surface of the composite roller 13. When one cleaning roller 33 completes the cleaning operation, it rotates away from the cleaning station with the turntable 32, and the next cleaning roller 33 immediately enters the cleaning station to take over the cleaning operation.

[0024] Through the above structural design, the deep cleaning mechanism 3 achieves multiple cleaning functions on the surface of the composite roller 13: First, when the cleaning roller 33 revolves with the turntable 32 to the cleaning station, it contacts the surface of the composite roller 13 and uses the bristles or scrapers on the surface of the cleaning roller 33 to physically wipe and scrape the surface of the composite roller 13, removing the waste material adhering to the surface of the composite roller 13; Second, the cleaning roller 33 rotates under the drive of the driven gear 331, and the direction of rotation is opposite to the direction of rotation of the composite roller 13. The relative motion between the two generates a stronger shearing and wiping effect, which can effectively remove more stubborn waste material adhering to the surface; Third, multiple cleaning rollers 33 enter the cleaning station in turn, realizing continuous and uninterrupted cleaning of the surface of the composite roller 13, avoiding the decline in cleaning effect caused by a single cleaning component working for a long time.

[0025] It is worth noting that the cleaning operation of the deep cleaning mechanism 3 and the scraping operation of the scraping mechanism 2 are complementary and progressive in function. The scraping mechanism 2 mainly scrapes off the thicker, newly adhered waste layer on the surface of the composite roller 13, playing a preliminary cleaning role; while the deep cleaning mechanism 3, through the wiping and scraping action of the cleaning roller 33, performs deep cleaning on the residual waste that the scraping mechanism 2 failed to completely remove. The two work together to form a progressive cleaning process from coarse scraping to fine cleaning, ensuring that the surface of the composite roller 13 remains highly clean.

[0026] On the other hand, since one end of the reciprocating screw 24 is provided with a pulley 16 and one end of the drive shaft 31 is provided with a pulley 18, the pulley 16 and the pulley 18 are connected by a toothed belt 17. The diameter of the pulley 18 is larger than that of the pulley 16. When the cleaning roller 33 needs to be replaced, the drive shaft 31 rotates, which will drive the reciprocating screw 24 to rotate, thereby moving the scraper 22.

[0027] In addition, it includes a spraying mechanism 4, which is located on one side of the composite roller 13 and above the side of the deep cleaning mechanism 3. The spraying mechanism 4 is fixedly installed on a liquid storage component 41 on one side of the coating frame 1. The liquid storage component 41 is a long, hollow shell structure with a liquid storage chamber inside for storing anti-sticking liquid (such as organic solvents, special cleaning agents, or water). The liquid storage component 41 has multiple sets of liquid outlet holes 411 arranged at equal intervals. The liquid outlet holes 411 are evenly distributed along the length of the liquid storage component 41. Each liquid outlet hole 411 is connected to the liquid storage chamber inside the liquid storage component 41. The liquid storage component 41 is equipped with a nozzle 44 that is connected to the liquid outlet hole 411. The spraying direction of the nozzle 44 is towards the composite roller 13. Specifically, the number of nozzles 44 is the same as the number of liquid outlet holes 411, with one nozzle 44 corresponding to each liquid outlet hole 411. The spraying direction of each nozzle 44 is directed towards the surface of the composite roller 13. The nozzles 44 are atomizing nozzles or fan-shaped nozzles, capable of spraying the anti-sticking liquid in a mist or fan shape, evenly covering the surface of the composite roller 13. An on / off switch 42 is slidably installed on the liquid storage component 41 away from the fixed end. The on / off switch 42 is slidably installed on the other side of the liquid storage component 41 and can slide along the length of the liquid storage component 41. A connection is provided between the on / off switch 42 and the coating frame 1. The elastic element 43 has one end connected to the on / off switch 42 and the other end connected to the coating frame 1. The elastic element 43 always applies an elastic bias force in one direction to the on / off switch 42. The on / off switch 42 is provided with multiple sets of equally spaced drainage holes 421. The number of drainage holes 421 is the same as the number of liquid outlet holes 411, and their diameters match the diameters of the liquid outlet holes 411. In the initial state (i.e., when the elastic element 43 is in its natural state), the drainage holes 421 and the liquid outlet holes 411 are misaligned, meaning that the drainage holes 421 and the liquid outlet holes 411 are offset from each other in position. The liquid outlet 411 is sealed by the physical part of the on / off switch 42, preventing the anti-stick liquid in the liquid storage container 41 from flowing out through the liquid outlet 411. Since the outer circumferential surface of the turntable 32 is provided with arc-shaped guide strips 321, the number of which corresponds to the number of cleaning rollers 33. In this embodiment, each turntable 32 is provided with four arc-shaped guide strips 321, which are evenly distributed along the circumference of the turntable 32. Each arc-shaped guide strip 321 is located between two adjacent cleaning rollers 33. The arc-shaped guide strips 321 protrude from the outer circumferential surface of the turntable 32, and the thickness of the arc-shaped guide strips 321 increases from near... The composite roller 13 gradually thickens from one end to the other, meaning the arc-shaped guide bar 321 is thinner at its front end in the rotation direction and gradually increases in thickness at its rear end. The thickness of the thickest end of the arc-shaped guide bar 321 is the same as the distance between the liquid outlet 411 and the liquid draining through hole 421. The arc-shaped guide bar 321 and the on / off switch 42 form a cam-like engagement relationship. Specifically, when the turntable 32 rotates, the arc-shaped guide bar 321 rotates with the turntable 32. When a certain arc-shaped guide bar 321 rotates to the position where it contacts the on / off switch 42, the thinner end of the arc-shaped guide bar 321 contacts the on / off switch 42 first.As the turntable 32 continues to rotate, the contact point between the arc-shaped guide bar 321 and the on / off switch 42 gradually moves from the thinner end to the thicker end. The pushing force of the arc-shaped guide bar 321 on the on / off switch 42 gradually increases, pushing the on / off switch 42 to slide against the elastic force of the elastic element 43. When the thickest end of the arc-shaped guide bar 321 contacts the on / off switch 42, the on / off switch 42 is pushed to the maximum displacement position. At this time, the drain hole 421 and the outlet hole 411 are aligned and connected. The anti-sticking liquid in the reservoir 41 is sprayed sequentially through the outlet 411, the drain hole 421, and the nozzle 44, onto the surface of the composite roller 13. When the arc-shaped guide bar 321 passes its contact position with the on / off switch 42, the pushing effect of the arc-shaped guide bar 321 on the on / off switch 42 disappears. The on / off switch 42 then resets and slides under the elastic restoring force of the elastic element 43. The drain hole 421 and the outlet 411 return to their misaligned state, and the nozzle 44 stops spraying liquid.

[0028] Through the above structural design, the spraying mechanism 4 achieves linkage with the deep cleaning mechanism 3: whenever a cleaning roller 33 rotates into the cleaning station and contacts the surface of the composite roller 13 for cleaning, the arc-shaped guide bar 321 located in front of the cleaning roller 33 pushes the on / off switch 42 to open, so that the nozzle 44 sprays anti-stick liquid onto the surface of the composite roller 13. After the anti-stick liquid is sprayed on the surface of the composite roller 13, it forms an isolation layer on the material surface, achieving the effect of non-stick and oil-proof. When the cleaning roller 33 completes the cleaning operation and rotates away from the cleaning station with the turntable 32, the arc-shaped guide bar 321 also rotates away, the on / off switch 42 closes, and the nozzle 44 stops spraying liquid. The intermittent spraying method greatly reduces the consumption of anti-stick liquid and reduces the cost of use.

[0029] Working principle: During the operation of the coating machine, after the substrate is drawn out from the unwinding end, it passes through the steering guide of the steering roller 12 and the coating below the flat die head 14. The flat die head 14 extrudes the molten coating material in a uniform film form and coats it on the surface of the substrate to form a coating layer. Subsequently, the substrate carrying the coating layer enters between the composite roller 13 and the corresponding pressing roller. Under the pressing action of the composite roller 13, the coating layer and the substrate are tightly bonded together. After lamination, the finished material is wound into a roll by the take-up roller 11. During the lamination process, some of the molten coating material inevitably adheres to the surface of the laminating roller 13. As the laminating roller 13 rotates, its bottom contacts the upper end of the scraper 22. The scraper 22 initially scrapes away the thicker waste layer on the surface of the laminating roller 13. The scraped waste slides down the inclined scraper 22 surface into the collection box 21. At the same time, when the cleaning roller 33 on the deep cleaning mechanism 3 revolves to the cleaning station, it contacts the surface of the laminating roller 13. Since the cleaning roller 33 rotates under the drive of the driven gear 331 and its rotation direction is the same as that of the laminating roller 13, a strong relative friction and wiping effect is generated between the contact ends of the two, scraping away the waste remaining on the surface of the laminating roller 13. When the cleaning roller 33 needs to be replaced, the drive shaft 31 rotates 90° and brings another set of cleaning rollers 33 into contact with the laminating roller 13. At this time, the pulley 16, toothed belt 17, and pulley 21... Under the transmission action of 8, the reciprocating screw 24 rotates continuously, driving the cleaning strip 23 to move back and forth along the surface of the scraper 22, continuously pushing and sweeping the waste material attached to the surface of the scraper 22 into the collection box 21. At the same time as the cleaning roller 33 enters the cleaning station, the arc-shaped guide strip 321 located in front of the cleaning roller 33 pushes the on / off switch 42 to open, so that the nozzle 44 sprays anti-stick liquid onto the surface of the composite roller 13, reducing the adhesion of the material on the composite roller 13, thereby reducing the adhesion of the material on the composite roller 13. This cycle repeats, and the composite roller 13 is always subjected to the continuous scraping action of the scraper mechanism 2 and the joint cleaning of the deep cleaning mechanism 3 during operation. The scraper mechanism 2 is responsible for removing most of the waste material on the surface of the composite roller 13, while the deep cleaning mechanism 3 is responsible for removing the remaining stubborn waste material. The two cooperate and complement each other, realizing multiple cleaning of the surface of the composite roller 13, effectively preventing the protrusion caused by waste material during lamination, and ensuring the flatness of the coating layer and the quality of the lamination.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dual-main-machine composite coating machine, comprising a coating frame (1), wherein the coating frame (1) is provided with a take-up roller (11), a guide roller (12), a composite roller (13), and a flat die head (14), and the flat die head (14) is located between the guide roller (12) and the composite roller (13), characterized in that, Also includes: The scraping mechanism (2) includes a scraper plate (22) that is attached to the bottom of the composite roller (13), and the scraper plate (22) is provided with a cleaning strip (23) that can move back and forth. The deep cleaning mechanism (3) includes a drive shaft (31) and a turntable (32) on both sides of the drive shaft (31). The turntable (32) is provided with multiple sets of cleaning rollers (33) arranged in a ring array with the drive shaft (31) as the center. The cleaning rollers (33) are rotatably connected to the turntable (32), and one end of the cleaning rollers (33) is provided with a driven gear (331).

2. The dual-host composite coating machine according to claim 1, characterized in that, The glue scraping mechanism (2) also includes a glue collection box (21) located at the bottom of the coating frame (1), and the glue scraper (22) is fixed on the glue collection box (21). A reciprocating screw (24) is rotatably installed on the glue collection box (21), and the reciprocating screw (24) is drivenly connected to the cleaning strip (23).

3. The dual-host composite coating machine according to claim 2, characterized in that, The scraper (22) is inclined, and the angle between the side of the scraper (22) that contacts the cleaning strip (23) and the horizontal plane is less than 90°.

4. The dual-host composite coating machine according to claim 1, characterized in that, The coating frame (1) is provided with a transmission gear (15), and one end of the composite roller (13) is provided with a drive gear (131), and the drive gear (131) is meshed with the transmission gear (15). The driven gear (331) on the cleaning roller (33) near the composite roller (13) is meshed with the transmission gear (15).

5. The dual-host composite coating machine according to claim 1, characterized in that, The outer circumferential surface of the turntable (32) is provided with arc-shaped guide bars (321), and the number of arc-shaped guide bars (321) corresponds to the number of cleaning rollers (33).

6. The dual-host composite coating machine according to claim 1, characterized in that, It also includes a spraying mechanism (4), which includes a liquid storage component (41) disposed on one side of the coating frame (1), and the liquid storage component (41) is provided with multiple sets of liquid outlet holes (411) arranged at equal intervals. The liquid storage component (41) is provided with a nozzle (44) that communicates with the liquid outlet holes (411) and sprays towards the composite roller (13). The liquid storage component (41) is slidably mounted with an on / off switch (42) away from the fixed end, and an elastic element (43) is provided between the on / off switch (42) and the coating frame (1).

7. The dual-host composite coating machine according to claim 6, characterized in that, The on / off switch (42) is provided with multiple sets of drain holes (421) that are equally spaced. The number of drain holes (421) is the same as the number of outlet holes (411), and in the initial state, the drain holes (421) and outlet holes (411) are misaligned.

8. The dual-host composite coating machine according to claim 5, characterized in that, The thickness of the arc-shaped guide bar (321) gradually increases from one end near the composite roller (13) toward the other end, and the thickness dimension of the thickest end of the arc-shaped guide bar (321) is the same as the distance between the liquid outlet hole (411) and the liquid draining through hole (421).

9. The dual-host composite coating machine according to claim 2, characterized in that, One end of the reciprocating screw (24) is provided with a pulley (16), and one end of the drive shaft (31) is provided with a pulley (18). The pulley (16) and the pulley (18) are connected by a toothed belt (17), and the diameter of the pulley (18) is larger than the diameter of the pulley (16).

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