Double-sided hot melt adhesive composite coating machine

Abstract

The invention relates to the technical field of coating machines, in particular to a double-sided hot melt adhesive composite coating machine which comprises a bottom plate and fixing frames, the two fixing frames are fixedly connected to the two ends of the bottom plate respectively, adjusting mechanisms are arranged in the fixing frames, and each adjusting mechanism comprises a hollow rod, a shifting rod, a feeding cylinder, a push rod, a push plate and a triangular plate. The two hollow rods are rotationally connected between the fixing frames respectively, and the two shifting rods are fixedly connected to the outer surfaces of the hollow rods respectively. The two smearing rollers are driven by the gear to rotate, the storage barrel is separated by the partition plate, and the two smearing rollers can be connected with different glues, so that the upper and lower surfaces of the base cloth can be smeared at the same time, and different glues and thicknesses can be smeared on the upper and lower surfaces of the base cloth.

Description

Technical Field

[0001] The invention relates to the technical field of coating machines, and in particular to a double-sided hot melt adhesive composite coating machine. Background Art

[0002] Double-sided coating laminating machine is a machine that evenly coats hot melt glue on various release papers, non-woven fabrics, cotton cloth, flocking cloth and other substrates, and then laminates the substrates with various composite materials. It is also used in the coating of silicone oil on paper and non-woven paper and the coating of plastic protective film.

[0003] When using the existing double-sided composite coating machine, when coating both sides of the film, it can only coat the two sides with the same thickness requirements at the same time. When coating the substrates with inconsistent thickness requirements on both sides, only one side can be coated first, and then the other side can be coated after drying, and it is not easy to adjust the coating thickness. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a double-sided hot melt adhesive composite coating machine.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A double-sided hot melt adhesive composite coating machine comprises a base plate and a fixed frame, the two fixed frames are respectively fixedly connected to the two ends of the base plate; an adjusting mechanism is arranged in the fixed frame, and the adjusting mechanism comprises a hollow rod, a shift rod, a feeding tube, a push rod, a push plate, and a triangular plate, the two hollow rods are respectively rotatably connected between the fixed frames, the two shift rods are respectively fixedly connected to the outer surfaces of the hollow rods, the two feeding tubes are respectively fixedly connected to the two ends of one of the fixed frames, the two push rods are respectively slidably connected to the side walls of the feeding tube, the two push plates are respectively fixedly connected to one end of the push rod close to the shift rod, the two triangular plates are respectively fixedly connected to one end of the push plate close to the shift rod, the triangular plate is slidably connected to the shift rod, the adjusting mechanism also comprises an adjusting rod and an adjusting plate, the two adjusting rods are respectively threadedly connected to one of the fixed frames close to the feeding tube, and the adjusting plate is slidably connected to the push plate.

[0006] In order to better achieve the above-mentioned purpose, the present invention adopts a further technical solution: one end of the push rod away from the push plate is fixedly connected to a piston plate, the piston plate is slidably connected to the inner wall of the feeding barrel, the outer surfaces of the two hollow rods are fixedly connected to gears, and the two gears are meshingly connected.

[0007] In order to better achieve the above-mentioned purpose, the present invention adopts a further technical solution: the upper end surface of the bottom plate is fixedly connected to a material storage barrel, and the two ends of one of the fixed frames close to the feeding tube are respectively fixedly connected to material storage boxes, and the two hollow rods are respectively rotatably connected to the material storage boxes, and the outer surface of the hollow rod is fixedly connected to a coating roller, and the outer surface of the hollow rod is provided with a plurality of through holes, and two air bags are fixedly connected between the two fixed frames, and the end of the air bag away from the fixed frame is fixedly connected to a stretching plate, and the lever is slidably connected to the stretching plate, and the A discharge pipe is fixedly connected between the feeding cylinder and the material storage box, a feeding pipe is fixedly connected between the feeding cylinder and the material storage barrel, a plurality of air inlet pipes and a plurality of air outlet pipes are fixedly connected to the airbag, and one-way valves are arranged in the discharge pipe, the feeding pipe, the air inlet pipe and the air outlet pipe. A motor is fixedly connected to the side wall of one of the fixed frames away from the material storage barrel, and the output end of the motor is fixedly connected to one of the hollow rods. A return spring is fixedly connected between the push plate and the feeding cylinder, and an extrusion spring is fixedly connected between the stretching plate and the fixed frame.

[0008] The beneficial effects of the present invention are as follows: the two coating rollers are driven to rotate by the gears, the partition separates the storage barrel, the two coating rollers can be connected with different glues, so that the upper and lower surfaces of the base fabric can be coated at the same time, and different glues and thicknesses can be coated on the upper and lower surfaces of the base fabric, and the adjustment plate is driven to move by rotating the adjustment rod to change the distance from the push plate to the feeding barrel, thereby changing the thickness of the coated glue, and the operation is very simple and quick. The stretching plate is driven by the lever to continuously squeeze the airbag, and the dust on the upper and lower ends of the base fabric is blown off respectively, so that the surface of the base fabric is cleaner, the glue is coated more evenly, and the coating effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A schematic diagram of the structure of a coating roller of a double-sided hot melt adhesive composite coating machine proposed by the present invention; Figure 2 A schematic diagram of the material storage box structure of a double-sided hot melt adhesive composite coating machine proposed by the present invention; Figure 3 for Figure 1 A partial enlarged view of middle A; Figure 4 This is a schematic diagram of the hollow rod structure of a double-sided hot melt adhesive composite coating machine proposed by the present invention.

[0010] In the figure: 1 bottom plate, 2 fixed frame, 3 hollow rod, 4 lever, 5 feeding barrel, 6 push rod, 7 push plate, 8 triangular plate, 9 adjusting rod, 10 adjusting plate, 11 piston plate, 12 gear, 13 storage barrel, 14 storage box, 15 coating roller, 16 air bag, 17 stretching plate, 18 discharge pipe, 19 feed pipe, 20 air inlet pipe, 21 air outlet pipe, 22 motor, 23 return spring, 24 extrusion spring. DETAILED DESCRIPTION

[0011] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0012] Reference Figure 1-Figure 4 As shown, a double-sided hot melt adhesive composite coating machine includes a bottom plate 1 and a fixed frame 2, the two fixed frames 2 are fixedly connected to the two ends of the bottom plate 1, an adjustment mechanism is arranged in the fixed frame 2, the adjustment mechanism includes a hollow rod 3, a lever 4, a feeding cylinder 5, a push rod 6, a push plate 7, and a triangular plate 8, the two hollow rods 3 are rotatably connected between the fixed frames 2, the two levers 4 are fixedly connected to the outer surface of the hollow rods 3, the two feeding cylinders 5 are fixedly connected to the two ends of one of the fixed frames 2, the two push rods 6 are slidably connected to the side walls of the feeding cylinder 5, the push rods 6 and the feeding cylinder 5 are not sealed, and the two push plates 7 are fixedly connected to the push rods 6 is close to one end of the lever 4, two triangular plates 8 are respectively fixedly connected to one end of the push plate 7 close to the lever 4, a return spring 23 is fixedly connected between the push plate 7 and the feeding barrel 5, the triangular plate 8 is slidably connected to the lever 4, the adjustment mechanism also includes an adjusting rod 9 and an adjusting plate 10, the two adjusting rods 9 are respectively threadedly connected to one of the fixed frames 2 close to the feeding barrel 5, the adjusting plate 10 is slidably connected to the push plate 7, the end of the push rod 6 away from the push plate 7 is fixedly connected to a piston plate 11, the piston plate 12 is sealingly and slidably connected to the inner side wall of the feeding barrel 5, the outer surfaces of the two hollow rods 3 are fixedly connected to gears 12, and the two gears 12 are meshingly connected.

[0013] A storage barrel 13 is fixedly connected to the upper end surface of the bottom plate 1, and the storage barrel 13 stores the material to be coated. A partition is arranged in the middle of the storage barrel 13, and different coatings can be stored. A motor 22 is fixedly connected to the side wall of one of the fixed frames 2 away from the storage barrel 13, and the output end of the motor 22 is fixedly connected to one of the hollow rods 3. The two ends of one of the fixed frames 2 close to the feeding tube 5 are respectively fixedly connected to the storage box 14, and the content of the storage box 14 is extremely small, and the glue will not stay in the storage box 14. The two hollow rods 3 are respectively rotatably connected to the storage box 14, and the outer surface of the hollow rod 3 is fixedly connected to the coating roller 15. The outer surface of the hollow rod 3 is provided with a plurality of through holes. Two air bags 16 are fixedly connected between the two fixed frames 2, and the end of the air bag 16 away from the fixed frame 2 is fixedly connected to a stretching plate 17. The stretching plate An extrusion spring 24 is fixedly connected between 17 and the fixed frame 2, the lever 4 is slidably connected to the stretching plate 17, a discharge pipe 18 is fixedly connected between the feeding cylinder 5 and the storage box 14, a feeding pipe 19 is fixedly connected between the feeding cylinder 5 and the storage barrel 13, and a plurality of air inlet pipes 20 and a plurality of air outlet pipes 21 are fixedly connected on the airbag 16, respectively. A one-way valve is arranged in the discharge pipe 18, the feed pipe 19, the air inlet pipe 20 and the air outlet pipe 21. The flow direction of the one-way valve in the discharge pipe 18 is from the feeding cylinder 5 to the storage box 14, the flow direction of the one-way valve in the feed pipe 19 is from the storage barrel 13 to the feeding cylinder 5, the flow direction of the one-way valve in the air inlet pipe 20 is from the outside to the airbag 16, the flow direction of the one-way valve in the air outlet pipe 21 is from the airbag 16 to the base fabric, and the air outlet pipe 21 is inclined to blow off the dust in one direction.

[0014] When the present invention is used, the base fabric is passed through the middle of the two coating rollers 15, rolled onto the external winding roller and introduced into the oven for drying, the motor 22 is started, the motor 22 rotates to drive the hollow rod 3 connected thereto to rotate, the hollow rod 3 rotates to drive the gear 12 to drive another gear 12 and the hollow rod 3 to rotate, the hollow rod 3 drives the lever 4 to rotate to squeeze the triangular plate 8, the triangular plate 8 is squeezed to drive the push plate 7 to move inward, and compress the reset spring 23, the push plate 7 drives the piston plate 11 to move through the push rod 6, and the feed barrel 5 is positively pressurized. Under the action of pressure, the one-way valve in the feed pipe 19 is closed, and the one-way valve in the discharge pipe 18 is opened. The glue in the feed barrel 5 flows into the storage box 14 along the discharge pipe 18. Under the action of centrifugal force and pressure, the glue enters the hollow rod 3 along the storage box 14, and evenly penetrates into the coating roller 15 from the leakage hole of the hollow rod 3. When the lever 4 is separated from the triangular plate At 8, the extrusion force on the triangular plate 8 disappears. Under the elastic force of the extrusion spring 24, the push plate 7 drives the piston plate 11 to reset, and the feeding barrel 5 is under negative pressure. Under the action of pressure, the one-way valve in the feeding pipe 19 is opened, and the one-way valve in the discharging pipe 18 is closed. The glue in the storage barrel 13 enters the feeding barrel 5 along the feeding pipe 19. As the hollow rod 3 continues to rotate, the glue continuously penetrates into the coating roller 15. The coating roller 15 evenly applies the glue to both sides of the base fabric and conveys the base fabric forward. A partition is provided in the storage barrel 13, and different glues can be stored at both ends of the partition. When the thickness of the base fabric at both ends needs to be changed, it is only necessary to rotate the adjusting plate 10 to drive the adjusting rod 9 to rotate, change the position of the driving push plate 7 to the feeding barrel 5, and change the amount of glue extracted when the lever 4 rotates one circle, thereby changing the thickness of the base fabric. The operation is simple and quick.

[0015] When the lever 4 is close to the stretching plate 17, it will drive the stretching plate 17 to move outward, thereby squeezing the airbag 16 and the squeezing spring 24. There is a positive pressure in the airbag 16. Under the action of pressure, the one-way valve in the air inlet pipe 20 is closed, and the one-way valve in the air outlet pipe 21 is opened. The gas in the airbag 16 is blown to the surface of the base fabric along the air outlet pipe 21. When the lever 4 is separated from the stretching plate 17, under the elastic force of the squeezing spring 24, the stretching plate 17 drives the airbag 16 to reset. There is a negative pressure in the airbag 16. Under the action of pressure, the one-way valve in the air inlet pipe 20 is opened, and the one-way valve in the air outlet pipe 21 is closed. The outside air enters the airbag 16 along the air inlet pipe 20. The air outlet pipes 21 on the two airbags 16 respectively blow off the dust at the upper and lower ends of the base fabric, so that the surface of the base fabric is cleaner, the glue is applied more evenly, and the application effect is better.

[0016] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double-sided hot melt adhesive composite coating machine, comprising a bottom plate (1) and a fixing frame (2), characterized in that: The two fixing frames (2) are respectively fixedly connected to the two ends of the bottom plate (1); an adjustment mechanism is arranged inside the fixing frame (2), and the adjustment mechanism comprises a hollow rod (3), a shifting rod (4), a feeding tube (5), a push rod (6), a push plate (7), and a triangular plate (8); the two hollow rods (3) are respectively rotatably connected between the fixing frames (2); the two shifting rods (4) are respectively fixedly connected to the outer surface of the hollow rods (3); the two feeding tubes (5) are respectively fixedly connected to the two ends of one of the fixing frames (2); and the two push rods (6) are respectively slidably connected to the two ends of the fixing frames (2). The two push plates (7) are respectively fixedly connected to one end of the push rod (6) close to the lever (4), and the two triangular plates (8) are respectively fixedly connected to one end of the push plate (7) close to the lever (4). The triangular plates (8) are slidably connected to the lever (4). The adjustment mechanism also includes an adjustment rod (9) and an adjustment plate (10). The two adjustment rods (9) are respectively threadedly connected to one of the fixed frames (2) close to the feed barrel (5), and the adjustment plate (10) is slidably connected to the push plate (7).

2. A double-sided hot melt adhesive composite coating machine according to claim 1, characterized in that: The end of the push rod (6) away from the push plate (7) is fixedly connected to a piston plate (11), and the piston plate (12) is slidably connected to the inner wall of the feeding barrel (5). The outer surfaces of the two hollow rods (3) are fixedly connected to gears (12), and the two gears (12) are meshingly connected.

3. A double-sided hot melt adhesive composite coating machine according to claim 1, characterized in that: A material storage barrel (13) is fixedly connected to the upper end surface of the bottom plate (1), and material storage boxes (14) are fixedly connected to both ends of one of the fixed frames (2) near the feeding tube (5), respectively. The two hollow rods (3) are rotatably connected to the material storage boxes (14), and a coating roller (15) is fixedly connected to the outer surface of the hollow rod (3). The outer surface of the hollow rod (3) is provided with a plurality of through holes. Two air bags (16) are fixedly connected between the two fixed frames (2), and a stretching plate (17) is fixedly connected to one end of the air bag (16) away from the fixed frame (2). The lever (4) is slidably connected to the stretching plate (17), and a discharge pipe (16) is fixedly connected between the feeding tube (5) and the material storage box (14). 18), a feed pipe (19) is fixedly connected between the feeding cylinder (5) and the storage barrel (13), a plurality of air inlet pipes (20) and a plurality of air outlet pipes (21) are fixedly connected on the air bag (16), and a one-way valve is arranged in each of the outlet pipe (18), the feed pipe (19), the air inlet pipe (20), and the air outlet pipe (21). A motor (22) is fixedly connected to the side wall of one of the fixing frames (2) away from the storage barrel (13), and the output end of the motor (22) is fixedly connected to one of the hollow rods (3). A return spring (23) is fixedly connected between the push plate (7) and the feeding cylinder (5), and a compression spring (24) is fixedly connected between the stretching plate (17) and the fixing frame (2).

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