Coating spraying device for PVA cloth production

Abstract

The utility model discloses a coating spraying device for PVA (Polyvinyl Alcohol) cloth production, relates to the related field of PVA cloth, and aims to solve the problem that the property of the whole cloth is influenced because the cloth of the conventional coating spraying device is directly sprayed after entering, and if the cloth is uneven, the coating is not uniform, even an uncoated area appears. The workbench comprises fixing vertical plates and connecting longitudinal plates, the connecting longitudinal plates are welded to the two sides of the lower ends of the two fixing vertical plates, a cloth adjusting unit is arranged on one side of the upper end of the workbench and comprises a C-shaped top plate, and upper fixing plates are fixedly welded to the front end and the rear end of the C-shaped top plate; driving hydraulic cylinders are installed at the front end and the rear end of the upper end of one connecting longitudinal plate, the output rod ends of the driving hydraulic cylinders are connected with the upper fixing plate, an adjusting driving motor is installed at the upper end of the upper fixing plate at the rear end, and a two-way threaded rod is installed in the C-shaped top plate along the output shaft end of the adjusting driving motor.

Description

Technical Field

[0001] The utility model relates to the relevant field of PVA cloth, in particular to a coating spraying device for producing PVA cloth. Background Art

[0002] Polyvinyl alcohol, an organic compound, is a white flake, flocculent or powdery solid, odorless. It is soluble in water, slightly soluble in dimethyl sulfoxide, and insoluble in gasoline, kerosene, vegetable oil, benzene, toluene, ethylene dichloride, carbon tetrachloride, acetone, ethyl acetate, methanol, ethylene glycol, etc. Polyvinyl alcohol is an important chemical raw material, used to make polyvinyl acetal, gasoline-resistant pipes and vinylon synthetic fibers, fabric treatment agents, emulsifiers, paper coatings, adhesives, glues, etc.

[0003] Coating refers to applying special materials on the surface of fabric to improve the performance of the fabric; therefore, when producing PVA fabric, it is necessary to use a coating spraying device to coat the material on the surface of the fabric.

[0004] At present, the coating spraying device is mainly composed of a spraying structure and a drying structure. After the coating material is applied, the cloth is dried to form a whole, and then transported out for winding. However, the current coating spraying device directly performs the spraying operation after the cloth enters. If the cloth is not flat, it will lead to uneven coating or even uncoated areas, affecting the properties of the entire cloth. Utility Model Content

[0005] The purpose of the utility model is to provide a coating spraying device for PVA cloth production, so as to solve the problem in the above-mentioned background technology that the current coating spraying device directly performs the spraying operation after the cloth enters. If the cloth is not flat, it will lead to uneven coating or even uncoated areas, affecting the properties of the entire cloth.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PVA cloth production coating spraying device, the spraying device is used for spraying cloth, including a workbench, the workbench includes a fixed vertical plate and a connecting longitudinal plate, the connecting longitudinal plate is welded to both sides of the lower ends of the two fixed vertical plates, a cloth adjustment unit is arranged on one side of the upper end of the workbench, the cloth adjustment unit includes a C-shaped top plate, the front and rear ends of the C-shaped top plate are welded and fixed with an upper fixed plate, the front and rear ends of the upper end of one of the connecting longitudinal plates are equipped with a driving hydraulic cylinder, the output rod end of the driving hydraulic cylinder is connected to the upper fixed plate, and the upper end of the rear end of the upper fixed plate is equipped with an adjusting driving motor, a bidirectional threaded rod is installed along the output shaft end of the adjusting driving motor on the inner side of the C-shaped top plate, and a sliding assembly is installed on the front and rear ends of the outside of the bidirectional threaded rod, the sliding assembly includes a sliding block and a cloth adjustment strip, the sliding block is threadedly connected to the bidirectional threaded rod, and the cloth adjustment strip is located at the front and rear ends of the upper end of the cloth and fits with the cloth.

[0007] Preferably, a limiting slide rod is fixed to the front and rear ends of the lower end of the bidirectional threaded rod along the inner edge of the C-shaped top plate, and the sliding assembly also includes an extension plate, which is integrally connected to the front and rear ends of the sliding block, and the extension plate slides along the limiting slide rod.

[0008] Preferably, a sliding groove is provided in the sliding block, and the lower end of the sliding groove extends to the outside of the sliding block, a rectangular groove is opened in the middle of the two side surfaces of the sliding block, the rectangular groove is communicated with the sliding groove, a sliding horizontal plate is slidably connected between the rectangular groove and the sliding groove, both sides of the sliding horizontal plate extend to the outside of the rectangular groove, a pressure spring is provided between the sliding horizontal plate and the extension plate on the outside, a lower telescopic column is provided in the sliding groove along the lower end of the sliding horizontal plate, the lower telescopic column is fixed to the sliding horizontal plate, the lower telescopic column slides along the sliding groove, a lower connecting plate is fixed to the lower end of the lower telescopic column, and a fabric adjustment strip is fixed to the lower end of the lower connecting plate.

[0009] Preferably, a spraying unit is also provided in the workbench, and the spraying unit comprises an outer frame, which is welded to the middle between the two fixed vertical plates, and a filter box is installed at the upper and lower ends of one side of the inner part of the outer frame, and a spray disk is connected to the inner end of the filter box through a pipeline inside the outer frame, and the spraying directions of the two spray disks are both toward the cloth, and a spray branch pipe is installed at the front end of the filter box, and the other ends of the two spray branch pipes pass through the outer frame and the fixed vertical plate at the front end and are connected to the spray main pipe through a tee.

[0010] Preferably, heating plates are installed along the upper and lower ends of the cloth on the other side of the inner part of the outer frame, and a heater is installed along the outer end of the heating plate inside the outer frame, and the heater is electrically connected to the heating plate.

[0011] Preferably, a T-shaped support plate is welded and fixed to the front and rear ends of the lower ends of the plurality of connecting longitudinal plates.

[0012] Preferably, conveying rollers are rotatably connected on both sides between the two fixed vertical plates via bearings.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, the adjusting driving motor drives the bidirectional threaded rod to rotate in the opposite direction, and the two sliding components are driven to move outward through the threaded connection relationship between the bidirectional threaded rod and the sliding block, and the cloth adjusting strip moves outward from the cloth surface. If there are wrinkles on the cloth, the wrinkles are gradually flattened under the action of the cloth adjusting strip movement and the cloth conveying, so that the cloth reaching the spraying unit position always remains flat, which solves the problem that the current coating spraying device directly performs the spraying operation after the cloth enters. If the cloth is not flat, it will lead to uneven coating or even uncoated areas, affecting the properties of the entire cloth.

[0015] 2. In the utility model, the setting of the driving hydraulic cylinder enables the entire fabric adjusting unit to move up and down; when the output shaft of the driving hydraulic cylinder is extended, the fabric adjusting unit is driven to move upward, which drives the structure to reset; when the output shaft of the driving hydraulic cylinder is contracted, the fabric adjusting unit is driven to move downward, so that the fabric adjusting strip contacts the fabric and can perform the flattening operation normally, so that the flattening process works intermittently, and auxiliary work is performed before spraying.

[0016] 3. In the utility model, when the output shaft of the driving hydraulic cylinder contracts and drives the cloth adjusting unit to move downward, the cloth adjusting strip contacts the cloth. As the output shaft of the driving hydraulic cylinder contracts, the lower telescopic column, the lower connecting plate and the cloth adjusting strip move upward, and the sliding horizontal plate moves upward along the rectangular groove synchronously. The pressure spring is compressed and deformed, so that the cloth adjusting strip is always pressed on the upper end of the cloth and has a certain flexible movement space, which can better assist in the flattening work before spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a coating spraying device for producing PVA cloth according to the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of a workbench of a coating spraying device for producing PVA cloth according to the utility model;

[0019] Figure 3 It is a cross-sectional view of a spraying unit of a coating spraying device for producing PVA cloth according to the utility model;

[0020] Figure 4 It is a side sectional view of a cloth adjustment unit of a coating spraying device for producing PVA cloth of the utility model;

[0021] Figure 5 The utility model is a schematic structural diagram of a sliding component of a coating spraying device for producing PVA cloth.

[0022] In the figure: 1. workbench; 2. fixed vertical plate; 3. connecting longitudinal plate; 4. T-shaped support plate; 5. conveyor roller; 6. cloth adjustment unit; 7. C-shaped top plate; 8. driving hydraulic cylinder; 9. upper fixed plate; 10. adjusting drive motor; 11. bidirectional threaded rod; 12. limit slide bar; 13. sliding assembly; 14. sliding block; 15. extension plate; 16. rectangular groove; 17. sliding horizontal plate; 18. pressure spring; 19. lower telescopic column; 20. lower connecting plate; 21. cloth adjustment strip; 22. spray unit; 23. outer frame; 24. filter box; 25. spray disc; 26. spray branch pipe; 27. spray main pipe; 28. heater; 29. ​​heating plate; 30. cloth. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figure 1-5 The utility model provides an embodiment: a coating spraying device for producing PVA cloth, the coating spraying device is used for spraying cloth 30, including a workbench 1, the workbench 1 includes a fixed vertical plate 2 and a connecting longitudinal plate 3, the connecting longitudinal plate 3 is welded to both sides of the lower ends of the two fixed vertical plates 2, and the front and rear ends of the lower ends of the multiple connecting longitudinal plates 3 are welded and fixed with a T-shaped support plate 4. Both sides between the two fixed vertical plates 2 are rotatably connected with a conveying roller 5 through a bearing, a driving motor is installed on one side of the front end of the front fixed vertical plate 2, and the connecting shaft of the driving motor is connected to one of the conveying rollers 5, and a transmission wheel is connected to the rear end of the conveying roller 5, and multiple transmission wheels are connected through a transmission belt.

[0025] A fabric adjustment unit 6 is provided on one side of the upper end of the workbench 1. The fabric adjustment unit 6 includes a C-shaped top plate 7. An upper fixed plate 9 is welded and fixed to the front and rear ends of the C-shaped top plate 7. A driving hydraulic cylinder 8 is installed at the front and rear ends of one of the upper ends of the longitudinal plates 3. The output rod end of the driving hydraulic cylinder 8 is connected to the upper fixed plate 9. An adjusting driving motor 10 is installed at the upper end of the rear end upper fixed plate 9. A bidirectional threaded rod 11 is installed along the output shaft end of the adjusting driving motor 10 along the inner edge of the C-shaped top plate 7. A limiting sliding rod 12 is fixed to the front and rear ends of the lower ends of the bidirectional threaded rod 11 along the inner edge of the C-shaped top plate 7. A sliding assembly 13 is installed at the front and rear ends of the outside of the bidirectional threaded rod 11. The sliding assembly 13 includes a sliding block 14 and a fabric adjustment strip 21. The sliding block 14 is threadedly connected to the bidirectional threaded rod 11. The fabric adjustment strip 21 is located at the front and rear ends of the upper end of the fabric 30 and fits with the fabric 30. The sliding assembly 13 also includes an extension plate 15. The extension plate 15 is integrally connected to the front and rear ends of the sliding block 14. The plate 15 slides along the limiting slide bar 12; a sliding groove is provided in the sliding block 14, and the lower end of the sliding groove extends to the outside of the sliding block 14, and a rectangular groove 16 is provided in the middle of the two side surfaces of the sliding block 14, and the rectangular groove 16 is connected to the sliding groove, and a sliding horizontal plate 17 is slidably connected to the rectangular groove 16 and the sliding groove, and both sides of the sliding horizontal plate 17 extend to the outside of the rectangular groove 16, and a pressure spring 18 is provided between the sliding horizontal plate 17 located on the outside and the extension plate 15, and the sliding horizontal plate 17 moves upward along the rectangular groove 16, and the pressure spring 18 is compressed and deformed, so that the fabric adjustment strip 21 is always pressed on the upper end of the fabric 30, and there is a certain flexible movement space; a lower telescopic column 19 is provided in the sliding groove along the lower end of the sliding horizontal plate 17, and the lower telescopic column 19 is fixed to the sliding horizontal plate 17, and the lower telescopic column 19 slides along the sliding groove, and the lower end of the lower telescopic column 19 is fixed with a lower connecting plate 20, and the fabric adjustment strip 21 is fixed to the lower end of the lower connecting plate 20.

[0026] The driving motor drives the connecting shaft to rotate, drives one of the conveying rollers 5 to rotate, and drives all the conveying rollers 5 to rotate through the transmission connection between the transmission wheel at one end of the connecting shaft and the transmission belt, so as to convey the cloth 30.

[0027] The output shaft of the driving hydraulic cylinder 8 is extended to drive the entire fabric adjusting unit 6 to move upward, and at the same time, the driving motor 10 is adjusted to drive the bidirectional threaded rod 11 to rotate, and the two sliding assemblies 13 are driven to move inward through the threaded connection relationship between the bidirectional threaded rod 11 and the sliding block 14; the output shaft of the rear driving hydraulic cylinder 8 contracts to drive the entire fabric adjusting unit 6 to move downward, so that the fabric adjusting strip 21 contacts the fabric 30, and then the driving motor 10 is adjusted to drive the bidirectional threaded rod 11 to rotate in the opposite direction, and the two sliding assemblies 13 are driven to move outward through the threaded connection relationship between the bidirectional threaded rod 11 and the sliding block 14, and the fabric adjusting strip 21 moves outward from the surface of the fabric 30. If there are wrinkles on the fabric 30, the wrinkles are gradually flattened under the movement of the fabric adjusting strip 21 and the conveying action of the fabric 30.

[0028] Furthermore, a spraying unit 22 is also provided in the workbench 1, and the spraying unit 22 includes an outer frame 23, and the outer frame 23 is welded in the middle between the two fixed vertical plates 2. A filter box 24 is installed at the upper and lower ends of one side inside the outer frame 23, and a spray disk 25 is connected to the inner end of the filter box 24 through a pipeline inside the outer frame 23. The spraying directions of the two spray disks 25 are both toward the cloth 30, and a spray branch pipe 26 is installed at the front end of the filter box 24. The other ends of the two spray branch pipes 26 pass through the outer frame 23 and the front fixed vertical plate 2 and are connected to the spray main pipe 27 through a tee. A heating plate 29 is installed along the upper and lower ends of the cloth 30 on the other side of the outer frame 23, and a heater 28 is installed along the outer end of the heating plate 29 inside the outer frame 23. The heater 28 is electrically connected to the heating plate 29 for drying.

[0029] Repeat the action of driving the hydraulic cylinder 8 and adjusting the action of the output shaft of the driving motor 10 to flatten the cloth 30 all the time;

[0030] Until the flattened portion of the cloth 30 enters the outer frame 23 of the spray unit 22, the external device pumps the spray material into the filter box 24 through the spray main pipe 27 and the spray branch pipe 26, and the material is filtered in the filter box 24 and sprayed out through the spray disk 25 to cover the upper and lower surfaces of the cloth 30. Afterwards, with the conveying of the conveying roller 5, the cloth 30 reaches between the two heating plates 29 to be heated and dried, and then is rolled up by the external device.

[0031] Since a large amount of liquid does not flow out during the spraying process but is coated on the surface of the cloth 30, there is no need to provide an additional liquid recovery structure, and there is basically no excess liquid leakage.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A coating spraying device for PVA cloth production, the coating spraying device is used for spraying cloth (30), comprising a workbench (1), characterized in that: The workbench (1) comprises a fixed vertical plate (2) and a connecting longitudinal plate (3), wherein the connecting longitudinal plate (3) is welded to both sides of the lower ends of the two fixed vertical plates (2), and a cloth adjustment unit (6) is arranged on one side of the upper end of the workbench (1), wherein the cloth adjustment unit (6) comprises a C-shaped top plate (7), and an upper fixed plate (9) is welded and fixed to the front and rear ends of the C-shaped top plate (7), and a driving hydraulic cylinder (8) is installed at the front and rear ends of the upper ends of one of the connecting longitudinal plates (3), and the output rod end of the driving hydraulic cylinder (8) is connected to the upper fixed plate (9), and the rear end An adjusting drive motor (10) is installed at the upper end of the upper fixed plate (9), a bidirectional threaded rod (11) is installed along the output shaft end of the adjusting drive motor (10) inside the C-shaped top plate (7), a sliding assembly (13) is installed at the front and rear ends outside the bidirectional threaded rod (11), the sliding assembly (13) comprises a sliding block (14) and a cloth adjusting strip (21), the sliding block (14) is connected to the bidirectional threaded rod (11) by threads, and the cloth adjusting strip (21) is located at the front and rear ends of the upper end of the cloth (30) and is in contact with the cloth (30).

2. A coating spraying device for PVA cloth production according to claim 1, characterized in that: A limiting slide bar (12) is fixed at the front and rear ends of the lower end of the bidirectional threaded rod (11) inside the C-shaped top plate (7), and the sliding assembly (13) also includes an extension plate (15), which is integrally connected to the front and rear ends of the sliding block (14), and the extension plate (15) slides along the limiting slide bar (12).

3. A coating spraying device for PVA cloth production according to claim 2, characterized in that: The sliding block (14) is provided with a sliding groove, and the lower end of the sliding groove extends to the outside of the sliding block (14); rectangular grooves (16) are provided in the middle of the two side surfaces of the sliding block (14); the rectangular grooves (16) are communicated with the sliding groove; a sliding horizontal plate (17) is slidably connected between the rectangular groove (16) and the sliding groove; both sides of the sliding horizontal plate (17) extend to the outside of the rectangular groove (16); a pressure spring (18) is provided between the sliding horizontal plate (17) and the extension plate (15) at the outside; a lower telescopic column (19) is provided in the sliding groove along the lower end of the sliding horizontal plate (17); the lower telescopic column (19) is fixed to the sliding horizontal plate (17); the lower telescopic column (19) slides along the sliding groove; a lower connecting plate (20) is fixed to the lower end of the lower telescopic column (19); a fabric adjusting strip (21) is fixed to the lower end of the lower connecting plate (20).

4. A coating spraying device for PVA cloth production according to claim 1, characterized in that: A spray unit (22) is also provided in the workbench (1), and the spray unit (22) comprises an outer frame (23), the outer frame (23) is welded to the middle between the two fixed vertical plates (2), a filter box (24) is installed at the upper and lower ends of one side of the inner part of the outer frame (23), a spray disk (25) is connected to the inner end of the filter box (24) through a pipeline inside the outer frame (23), the two spray disks (25) spray in the direction of the cloth (30), a spray branch pipe (26) is installed at the front end of the filter box (24), and the other ends of the two spray branch pipes (26) pass through the outer frame (23) and the fixed vertical plate (2) at the front end and are connected to the spray main pipe (27) through a tee.

5. A coating spraying device for PVA cloth production according to claim 4, characterized in that: A heating plate (29) is installed along the upper and lower ends of the cloth (30) on the other side of the inner part of the outer frame (23), and a heater (28) is installed along the outer end of the heating plate (29) inside the outer frame (23), and the heater (28) is electrically connected to the heating plate (29).

6. A coating spraying device for PVA cloth production according to claim 1, characterized in that: The front and rear ends of the lower ends of the plurality of connecting longitudinal plates (3) are welded and fixed together with a T-shaped support plate (4).

7. A coating spraying device for PVA cloth production according to claim 1, characterized in that: Conveying rollers (5) are rotatably connected to both sides between the two fixed vertical plates (2) via bearings.

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