A coating device for plastic woven bags

Abstract

This utility model relates to the field of plastic processing technology and discloses a coating device for plastic woven bags. The device includes a housing, with a motor fixedly connected to both the front and rear sides of the housing. A rotating rod is fixedly connected to the drive end of the motor, and a fixed plate is fixedly connected to the rear side of the rotating rod. A second motor is fixedly connected to the rear side of the fixed plate, with a rotating rod also fixedly connected to the drive end of the second motor. A gear is fixedly connected to the rear side of the rotating rod. Isolation plates are fixedly connected to the inner walls of both the front and rear sides of the housing. Two rotating shafts are rotatably connected to the rear side of the isolation plates, and guide plates are fixedly connected to the rear sides of both rotating shafts. In this utility model, the second motor rotates the rotating rod, causing the gear to rotate the racks on both sides, which in turn move the support frame. The first motor rotates the rotating rod, causing the fixed plate to rotate, which in turn rotates the gear and racks, thus achieving the flipping of the plastic woven bag.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, and in particular to a coating device for plastic woven bags. Background Technology

[0002] Plastic woven bags are bag-shaped products made from resins such as polyethylene and polypropylene, which are extruded, stretched into flat filaments, and then woven. They are lightweight, high-strength, and low-cost, and are widely used for packaging industrial and agricultural products. The coating device used in these bags mainly involves coating the surface with a thin film of polyethylene or a functional coating to compensate for the inherent defects of woven bags, such as high air permeability and poor moisture and leakage prevention. This improves their sealing and moisture-proof properties, acid and alkali resistance, and UV aging resistance, expanding their applicability in packaging powders, liquids, and moisture-sensitive items.

[0003] Coating equipment for plastic woven bags typically consists of an unwinding mechanism that feeds the woven bag substrate to be coated, a coating mechanism that includes coating rollers, doctor blades or extrusion dies to achieve uniform coating of the material, a heating and drying mechanism that evaporates the solvent in the coating through an oven or heated roller to cure the coating, and a winding mechanism that winds the coated woven bag into a roll. It is also equipped with a tension control module to maintain stable operation of the substrate, a transmission module to drive the coordinated operation of each component, and an electrical control module to regulate parameters such as coating speed and temperature. Some equipment is also equipped with a coating thickness detection device to ensure the stability of coating quality.

[0004] In existing technologies, some coating devices for plastic woven bags can only coat one side of the plastic woven bags on the conveyor belt, and subsequent coating of the reverse side is required, which increases the production process and time and reduces the overall production efficiency. Therefore, a coating device for plastic woven bags is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a coating device for plastic woven bags, which aims to improve the problem that the existing technology can only coat one side of the plastic woven bags on the conveyor belt, and subsequent coating of the reverse side is required.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A coating device for plastic woven bags includes a housing. Motor 1 is fixedly connected to both the front and rear sides of the housing. A rotating rod is fixedly connected to the drive end of motor 1. A fixed plate is fixedly connected to the rear side of rotating rod 1. Motor 2 is fixedly connected to the rear side of the fixed plate. A rotating rod 2 is fixedly connected to the drive end of motor 2. A gear is fixedly connected to the rear side of rotating rod 2. Isolation plates are fixedly connected to the inner walls of both the front and rear sides of the housing. Two rotating shafts are rotatably connected to the rear side of the isolation plates. Guide plates are fixedly connected to the rear side of each of the two rotating shafts. A rack is slidably connected to an adjacent side of each of the two guide plates. A connecting block is fixedly connected to the rear side of the rack. A quantity control component for limiting the amount of coating is fixedly connected to both the front and rear sides of the housing.

[0008] As a further description of the above technical solution:

[0009] The quantity control component includes electric push blocks. Two electric push blocks are fixedly connected to the front and rear sides of the outer shell on their adjacent sides. A moving rod is fixedly connected to the drive end of the electric push block. A limit plate is fixedly connected to the rear side of the moving rod. A sealing plate is fixedly connected to the rear side of the limit plate. A protective shell is fixedly connected to the top inner wall of the outer shell. A blocking ring is fixedly connected to the bottom of the protective shell. A feed shell is fixedly connected to the inside of the protective shell.

[0010] As a further description of the above technical solution:

[0011] The gear is meshed with the rack, and the connecting block is slidably connected to the rear side of the guide plate.

[0012] As a further description of the above technical solution:

[0013] The external rotating rod 2 is rotatably connected to the inside of the isolation plate, and the bottom of the outer shell is fixedly connected to the bottom of the outer shell;

[0014] As a further description of the above technical solution:

[0015] A support frame is fixedly connected to the rear side of the connecting block, and the outside of the fixing plate is rotatably connected to the inside of the outer shell;

[0016] As a further description of the above technical solution:

[0017] The outer side of the limiting plate is slidably connected to the inside of the feed shell, and the bottom of the limiting plate is slidably connected to the top of the blocking ring;

[0018] As a further description of the above technical solution:

[0019] A uniform plate is fixedly connected inside the blocking ring, and a discharge cone is fixedly connected to the bottom of the uniform plate;

[0020] As a further description of the above technical solution:

[0021] The bottom of the protective shell has a slot, and the bottom of the sealing plate is slidably connected to the inside of the feed shell.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, motor 2 causes rotating rod 2 to rotate, which in turn causes gears to drive racks on both sides to rotate, which in turn causes racks to drive support frame to move. At the same time, motor 1 causes rotating rod 1 to rotate, which in turn causes fixed plate to rotate, causing gears and racks to rotate, thereby realizing the flipping of plastic woven bags, improving coating quality; no manual flipping is required, thus improving production efficiency.

[0024] 2. In this utility model, the electric push block drives the moving rod to move, so that its limiting plate blocks the bottom slot, thereby adjusting the size of the feed shell inlet, so that the amount of paint entering the uniform plate can be adjusted, thereby adjusting the amount of paint sprayed by the coating device, thus realizing the adjustment of the amount of paint sprayed. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a coating device for plastic woven bags proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the bottom shell structure of a coating device for plastic woven bags proposed in this utility model; Figure;

[0027] Figure 3 This is a schematic diagram of the support frame structure of a coating device for plastic woven bags proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the feed shell structure of a coating device for plastic woven bags proposed in this utility model.

[0029] Legend:

[0030] 1. Outer shell; 2. Motor 1; 3. Rotating rod 1; 4. Motor 2; 5. Rotating rod 2; 6. Gear; 7. Isolation plate; 8. Rotating shaft; 9. Fixing plate; 10. Guide plate; 11. Rack; 12. Connecting block; 13. Support frame; 14. Electric pusher block; 15. Moving rod; 16. Limiting plate; 17. Sealing plate; 18. Feed shell; 19. Blocking ring; 20. Uniform plate; 21. Discharge cone; 22. Protective shell; 23. Bottom shell. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 2 and Figure 3 This utility model provides an embodiment of a coating device for plastic woven bags, including a shell 1, which is the foundation of the entire device, thus protecting the internal structure and making it stable. Motors 1-2 are fixedly connected to both the front and rear sides of the shell 1. The motors are the driving source for the flipping assembly, thus ensuring its stability. A rotating rod 3 is fixedly connected to the driving end of motor 1-2, receiving the rotational force from motor 1-2 and rotating accordingly, thus ensuring stability. A fixing plate 9 is fixedly connected to the rear side of rotating rod 1-3, receiving the rotational force from rotating rod 1-3 and rotating accordingly. A second motor 4 is fixedly connected to the rear side of fixing plate 9, serving as a partial driving source for the flipping assembly, thus enabling the operation of subsequent components. A rotating rod 2-5 is fixedly connected to the driving end of motor 2-4, receiving the driving source from motor 2-4 and enabling the rotation of subsequent components.

[0033] A gear 6 is fixedly connected to the rear side of the rotating rod 2 5. The gear 6 receives the rotational force of the rotating rod 2 5, thereby rotating and stabilizing it. Isolation plates 7 are fixedly connected to the inner walls of the front and rear sides of the outer shell 1. Isolation plates 7 are the foundation of the entire equipment and are used to isolate the flipping assembly from other components. Two rotating shafts 8 are rotatably connected to the rear side of the isolation plate 7. The rotating shafts 8 receive the drive from other components, thereby rotating. Guide plates 10 are fixedly connected to the rear side of the two rotating shafts 8. A rack 11 is slidably connected to the adjacent side of the two guide plates 10. The guide plates 10 are the guiding components of the flipping assembly, allowing the rack 11 to move linearly. A connecting block 12 is fixedly connected to the rear side of the rack 11. The connecting block 12 is connected to the subsequent components. A quantity control component for limiting the amount of coating is fixedly connected to the front and rear sides of the outer shell 1.

[0034] Reference Figure 2 and Figure 4The quantity control component includes electric push blocks 14. Two electric push blocks 14 are fixedly connected to the front and rear sides of the outer casing 1 on their adjacent sides. The electric push blocks 14 are the driving source of the quantity control component, thereby stabilizing it and enabling the component to operate. A moving rod 15 is fixedly connected to the driving end of the electric push block 14. The moving rod 15 receives the pushing force of the electric push block 14 and moves accordingly, thus stabilizing it. A limit plate 16 is fixedly connected to the rear side of the moving rod 15. The limit plate 16 receives the pushing force of the moving rod 15 and moves accordingly. A sealing plate 17 is fixedly connected to the rear side of the limit plate 16. A protective shell 22 is fixedly connected to the top inner wall of the outer casing 1. A blocking ring 19 is fixedly connected to the bottom of the protective shell 22. A feed shell 18 is fixedly connected inside the protective shell 22. The sealing plate 17 moves with the limit plate 16 and also contacts the sealing plate 17 on the other side to seal it. The feed shell 18 is used to introduce paint into the interior of the equipment for coating.

[0035] Reference Figures 1 to 3 The gear 6 is meshed with the rack 11. The gear 6 receives the rotational force from the lever 2, thus rotating and stabilizing it. The connecting block 12 is slidably connected to the rear interior of the guide plate 10. The connecting block 12 receives the moving force from the rack 11, thus moving inside the guide plate 10. The rotating rod 2 5 is rotatably connected to the interior of the isolation plate 7. The rotating rod 2 5 receives the rotational force from the motor 2 4, thus rotating inside the isolation plate 7.

[0036] A bottom shell 23 is fixedly connected to the bottom of the outer shell 1. The bottom shell 23 protects the internal components such as the conveyor belt. A support frame 13 is fixedly connected to the rear side of the connecting block 12. The support frame 13 moves and fixes the plastic woven bag upwards. The fixed plate 9 is externally rotatably connected to the inside of the outer shell 1. The fixed plate 9 receives the rotational force of the rotating rod 3, thereby rotating and stabilizing it. The limiting plate 16 is externally slidably connected to the inside of the feed shell 18. The limiting plate 16 receives the pushing force of the moving rod 15, thereby moving and stabilizing it. The bottom of the limiting plate 16 slides... The top of the blocking ring 19 is dynamically connected, and the limiting plate 16 receives the pushing force of the moving rod 15, thereby making linear movement and stabilizing it. The uniform plate 20 is fixedly connected inside the blocking ring 19, and the bottom of the uniform plate 20 is fixedly connected to the discharge cone 21. The uniform plate 20 evenly feeds the coating into the discharge cone 21 and stabilizes it. The bottom of the protective shell 22 has a slot for fixing the blocking ring 19. The bottom of the sealing plate 17 is slidably connected to the inside of the feed shell 18. The sealing plate 17 receives the moving force of the limiting plate 16 and thus moves.

[0037] Working principle: First, the operator places the material on the equipment. Then, the operator starts motor 4, which causes the rotating rod 5 to rotate, making gear 6 rotate. Gear 6 drives rack 11 to move, causing rack 11 to move support frame 13 closer together, thus moving the material upward. Then, motor 2 is started, causing the rotating rod 3 to rotate, which makes fixed plate 9 rotate. Fixed plate 9 drives guide plate 10 and rack 11 to rotate, thus realizing the flipping of the plastic woven bag and improving the coating quality.

[0038] Then, the operator first places the component containing the paint on the feed housing. Under the action of the feed housing, the material enters the protective housing. At this time, the operator activates the electric push block 14, which moves the moving rod 15, causing the moving rod 15 to move the limiting plate 16, thereby allowing the limiting plate 16 to enter the feed housing 18. This adjusts the feed inlet of the feed housing 18, bringing the two sealing plates 17 closer together. This reduces the amount of paint entering the uniform plate 20, reduces the amount of paint sprayed from the nozzle of the discharge cone 21, and reduces the amount of paint received by the plastic woven bag. This allows the operator to adapt to the coating surfaces of plastic woven bags of different sizes, thereby adjusting the amount of paint sprayed.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coating device for plastic woven bags comprising a housing (1), characterized in that: Motor 1 (2) is fixedly connected to both sides of the outer shell (1). A rotating rod 1 (3) is fixedly connected to the drive end of the motor 1 (2). A fixing plate (9) is fixedly connected to the rear side of the rotating rod 1 (3). Motor 2 (4) is fixedly connected to the rear side of the fixing plate (9). A rotating rod 2 (5) is fixedly connected to the drive end of the motor 2 (4). A gear (6) is fixedly connected to the rear side of the rotating rod 2 (5). Isolation plates (7) are fixedly connected to the inner walls of the front and rear sides of the outer shell (1). Two rotating shafts (8) are rotatably connected to the rear side of the isolation plates (7). Guide plates (10) are fixedly connected to the rear side of the two rotating shafts (8). A rack (11) is slidably connected to the adjacent side of the two guide plates (10). A connecting block (12) is fixedly connected to the rear side of the rack (11). A quantity control component for limiting the amount of coating is fixedly connected to the front and rear sides of the outer shell (1).

2. A coating device for plastic woven bags as claimed in claim 1, wherein: The quantity control component includes an electric pusher block (14). Two electric pushers (14) are fixedly connected to the front and rear sides of the outer shell (1) on their adjacent sides. A moving rod (15) is fixedly connected to the driving end of the electric pusher block (14). A limit plate (16) is fixedly connected to the rear side of the moving rod (15). A sealing plate (17) is fixedly connected to the rear side of the limit plate (16). A protective shell (22) is fixedly connected to the top inner wall of the outer shell (1). A blocking ring (19) is fixedly connected to the bottom of the protective shell (22). A feed shell (18) is fixedly connected inside the protective shell (22).

3. A coating device for plastic woven bags as claimed in claim 1, wherein: The gear (6) is meshed with the rack (11) and the connecting block (12) is slidably connected to the rear side of the guide plate (10).

4. A coating device for plastic woven bags as claimed in claim 1, wherein: The external rotating rod (5) is rotatably connected to the inside of the isolation plate (7), and the bottom shell (23) is fixedly connected to the bottom of the outer shell (1).

5. A coating device for plastic woven bags as claimed in claim 1, wherein: The connecting block (12) is fixedly connected to the support frame (13) on the rear side, and the fixed plate (9) is rotatably connected to the outside of the outer shell (1).

6. A coating device for plastic woven bags as claimed in claim 2, wherein: The outer side of the limiting plate (16) is slidably connected to the inside of the feed shell (18), and the bottom of the limiting plate (16) is slidably connected to the top of the blocking ring (19).

7. A coating device for plastic woven bags as claimed in claim 2, wherein: The blocking ring (19) is fixedly connected to a uniform plate (20), and the bottom of the uniform plate (20) is fixedly connected to a discharge cone (21).

8. A coating device for plastic woven bags as claimed in claim 2, wherein: The bottom of the protective shell (22) is provided with a slot, and the bottom of the sealing plate (17) is slidably connected to the inside of the feed shell (18).

Images