Stretching device for producing high-strength environment-friendly plastic woven composite film

Abstract

The utility model belongs to the technical field of stretching devices, and discloses a stretching device for producing a high-strength environment-friendly plastic woven composite film, the stretching device comprises a bottom plate, a mounting frame, four groups of supporting plates, a guide roller and a top plate, each group of supporting plates comprises two symmetrically arranged supporting plates, and first sliding blocks are vertically and slidably arranged on the two groups of supporting plates close to the middle of the bottom plate; a first stretching roller is rotatably arranged between the two corresponding first sliding blocks, second sliding blocks are vertically and slidably arranged on the two sets of supporting plates close to the mounting frame, a second stretching roller is slidably arranged between the two corresponding second sliding blocks, and the first sliding blocks on the two sets of supporting plates are connected through a first connecting plate; the second sliding blocks on the two supporting plates are connected through a second connecting plate, a driving assembly is arranged on the top plate, and a heating assembly is arranged on one mounting frame. And the driving assembly drives the first stretching roller to descend and the second stretching roller to ascend, so that the composite film can penetrate through the device more conveniently, and the efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of stretching devices, in particular to a stretching device for producing high-strength environmentally friendly plastic woven composite films. Background Art

[0002] During the production process, composite films typically require stretching to achieve the required thickness. This stretching is accomplished by a stretching device. During stretching, the composite film is pulled and wound by a winding device, while the unstretched composite film is unwound by a feeding device. The winding device's winding speed is greater than the feeding device's unwinding speed, causing the composite film to be stretched and thinned as it passes through the staggered stretching rollers of the stretching device.

[0003] Currently, the positions of the stretching rollers of the existing stretching devices are mostly fixed, so that the composite film needs to be wound around multiple stretching rollers by the staff, which is inconvenient and increases the labor intensity of the staff. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a stretching device for producing high-strength environmentally friendly plastic-woven composite films.

[0005] The lifting mechanism is a support breaker and a support structure. The support mechanics of the present invention is to be controlled by a user. The support mechanics of the present invention is to be controlled by a user. The support mechanics of the present invention is to be controlled by a user. The support mechanics of the present invention is to be controlled by a user. The support mechanics of the present invention is to be controlled by a user.

[0006] By adopting the above technical solution, a bottom plate, a guide roller, a first stretching roller, a second stretching roller, and a drive assembly are provided. Before the composite film is passed through the device, the first connecting plate is first driven down and the second connecting plate is driven up by the drive assembly. The first connecting plate descends, driving the first stretching roller to descend, so that the upper part of the first stretching roller is lower than the upper part of the guide roller. The second connecting plate rises, driving the second stretching roller to rise, so that the lower part of the second stretching roller is higher than the upper part of the guide roller. At this time, the composite film starts from the upper side of the guide roller below the heating component, passes through the lower side of the second stretching roller and the upper side of the first stretching roller. Due to the adjustment of the positions of the first stretching roller and the second stretching roller, the composite film does not need to go around the first stretching roller and the second stretching roller, making it more convenient and more efficient to pass the composite film through the device, reducing the workload of the staff. After passing through the device, the composite film is connected to the winding device. Subsequently, the driving component drives the first connecting plate to rise and the second connecting plate to fall, driving the first stretching roller to rise and the second stretching roller to fall, so that the first stretching roller and the second stretching roller are staggered up and down, so that the roller surfaces of the first stretching roller and the second stretching roller are in contact with the composite film, and then the heating component is started to heat the composite film, the winding device starts to wind the composite film, and the feeding device unwinds the composite film that has not undergone the stretching operation. The winding speed of the winding device is greater than the unwinding speed of the feeding device, and the composite film is stretched when it passes through the first stretching roller and the second stretching roller.

[0007] Furthermore, the support plates are each provided with strip-shaped holes whose length direction is consistent with that of the support plates, and the first sliding block and the second sliding block are slidably connected to the corresponding strip-shaped holes.

[0008] By adopting the above technical solution, strip holes whose length direction is consistent with the length direction of the support plate are opened on the support plate, thereby ensuring the sliding stability of the first sliding block and the second sliding block.

[0009] The cam is connected to the second stretching roller by the second sliding block away from the second stretching roller, and the distance between the first sliding block and the first stretching roller is greater than the distance between the first sliding block and the first stretching roller. The driving assembly includes two vertically arranged bidirectional threaded rods spaced apart, the lower ends of the bidirectional threaded rods are rotatably connected to the bottom plate, and the upper ends of the bidirectional threaded rods are rotatably connected to the top plate. The bidirectional threaded rods are arranged between the corresponding first connecting plate and the second connecting plate, and the first vertical plate is extended downwardly from the bottom of the first connecting plate, the first connecting plate is provided with a first connecting block at the bottom of the first vertical plate, and the second vertical plate is extended upwardly from the top of the second connecting plate, and the second connecting block is provided on the top of the second vertical plate, the first connecting block is screwed with the lower end of the corresponding bidirectional threaded rod through a threaded hole, and the second connecting block is screwed with the upper end of the corresponding bidirectional threaded rod through a threaded hole, and the top plate is provided with a driving unit that drives the two bidirectional threaded rods to rotate.

[0010] By adopting the above technical solution, a bidirectional threaded rod, a first vertical plate, a first connecting block, a second vertical plate, a second connecting block, and a driving unit are provided. The bidirectional threaded rod is driven to rotate by the driving unit, thereby driving the first connecting block and the first vertical plate to rise, and at the same time driving the second connecting block and the second vertical plate to descend, thereby causing the first connecting plate to rise and the second connecting plate to descend.

[0011] Furthermore, the drive unit includes several mounting plates arranged at intervals along the width direction of the base plate, and a rotating shaft is provided for rotating the several mounting plates together. The upper end of the bidirectional threaded rod passes through the top plate and is provided with a first bevel gear, and second bevel gears are arranged at intervals on the rotating shaft. The second bevel gear is meshed with the corresponding first bevel gear, and a worm gear is provided on the rotating shaft. Support blocks are provided on both sides of the worm gear on the top plate, and a worm is provided on the two support blocks for rotating together. The worm gear cooperates with the worm gear, and a driving motor is provided on the top plate, and the output shaft of the driving motor is connected to the end of the worm gear.

[0012] By adopting the above technical solution, a mounting plate, a rotating shaft, a first bevel gear, a second bevel gear, a worm wheel, a support block, a worm, and a drive motor are provided. The drive motor drives the worm to rotate, so that the worm wheel and the rotating shaft rotate, driving the first bevel gear to rotate, thereby driving the second bevel gear and the bidirectional threaded rod to rotate.

[0013] Furthermore, the heating assembly includes an electric push rod vertically arranged on the top of the mounting frame, the piston rod of the electric push rod is downward and is provided with a mounting seat, and the bottom of the mounting seat is provided with an electric heater.

[0014] By adopting the above technical solution, an electric push rod, a mounting seat, and an electric heater are set. The electric push rod controls the height of the mounting seat and thus controls the height of the electric heater, thereby adjusting the heating effect on the composite film.

[0015] Furthermore, two sliding tubes arranged at intervals are vertically provided on the top of the mounting frame, a sliding rod is slidably provided in the sliding tube, and the bottoms of the two sliding rods are connected to the mounting seat.

[0016] By adopting the above technical solution and arranging the sliding tube and the sliding rod, the stability of the position of the mounting seat and the electric heater is further ensured.

[0017] Furthermore, both ends of the guide roller, the first stretching roller and the second stretching roller are provided with blocking rings.

[0018] By adopting the above technical solution, blocking rings are provided at both ends of the guide roller, the first stretching roller and the second stretching roller to limit the position of the composite film.

[0019] In summary, the utility model has the following beneficial effects: a bottom plate, a guide roller, a first stretching roller, a second stretching roller, and a drive assembly are provided. Before the composite film is passed through the device, the first connecting plate is driven to descend and the second connecting plate is driven to ascend by the drive assembly. The first connecting plate descends, driving the first stretching roller to descend, so that the upper part of the first stretching roller is lower than the upper part of the guide roller. The second connecting plate ascends, driving the second stretching roller to ascend, so that the lower part of the second stretching roller is higher than the upper part of the guide roller. At this time, the composite film starts from the upper side of the guide roller below the heating component, passes through the lower side of the second stretching roller and the upper side of the first stretching roller. Due to the adjustment of the positions of the first stretching roller and the second stretching roller, the composite film does not need to go around the first stretching roller and the second stretching roller, making it more convenient and more efficient to pass the composite film through the device, reducing the workload of the staff. After passing through the device, the composite film is connected to the winding device. Subsequently, the driving component drives the first connecting plate to rise and the second connecting plate to fall, driving the first stretching roller to rise and the second stretching roller to fall, so that the first stretching roller and the second stretching roller are staggered up and down, so that the roller surfaces of the first stretching roller and the second stretching roller are in contact with the composite film, and then the heating component is started to heat the composite film, the winding device starts to wind the composite film, and the feeding device unwinds the composite film that has not undergone the stretching operation. The winding speed of the winding device is greater than the unwinding speed of the feeding device, and the composite film is stretched when it passes through the first stretching roller and the second stretching roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0021] Figure 2 This is a structural diagram of the bottom plate, the first stretching roller, and the second stretching roller of an embodiment of the utility model;

[0022] Figure 3 This is a schematic structural diagram of the bottom plate and the first stretching roller of an embodiment of the utility model;

[0023] Figure 4 This is a schematic structural diagram of the bottom plate and the second stretching roller in an embodiment of the present utility model;

[0024] Figure 5 This is a schematic structural diagram of a drive unit according to an embodiment of the present utility model;

[0025] Figure 6 It is a structural schematic diagram of the mounting frame and heating assembly of an embodiment of the utility model.

[0026] In the figure: 10, bottom plate; 11, mounting frame; 12, guide roller; 20, support plate; 21, strip hole; 30, top plate; 40, first sliding block; 41, first stretching roller; 42, first connecting plate; 50, second sliding block; 51, second stretching roller; 52, second connecting plate; 60, drive assembly; 61, bidirectional threaded rod; 62, first vertical plate; 63, first connecting block; 64, second vertical plate; 65, second connecting block; 70, heating assembly; 71, electric push rod; 72, mounting seat; 73, electric heater; 74, slide tube; 75, slide rod; 80, drive unit; 81, mounting plate; 82, rotating shaft; 83, first bevel gear; 84, second bevel gear; 85, worm gear; 86, worm; 87, drive motor; 88, support block; 90, blocking ring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0028] like Figure 1-6 As shown, the present embodiment discloses a stretching device for producing high-strength, environmentally friendly plastic-woven composite film. The device comprises a base plate 10, a mounting frame 11, a drive assembly 60, and a heating assembly 70. Two mounting frames 11 are provided, one on each side of the base plate 10 along its length. A guide roller 12 is provided on the mounting frames 11 for horizontal rotation. Four sets of support plates 20 are provided on the base plate 10, spaced apart along its length between the two mounting frames 11. Each set of support plates 20 includes two support plates 20 symmetrically arranged along its width. A top plate 30 is provided on top of the mounting frames 11 and the support plates 20. First sliding blocks 40 are provided vertically for sliding movement on the two sets of support plates 20 near the center of the base plate 10. A first stretching roller 41 is provided horizontally for rotation between the two corresponding first sliding blocks 40. Second sliding blocks 50 are provided vertically for sliding movement on the two sets of support plates 20 near the mounting frames 11. A second stretching roller 51 is provided horizontally for sliding movement between the two corresponding second sliding blocks 50. The first sliding blocks 40 on the two sets of support plates 20 are connected by a first connecting plate 42, and the second sliding blocks 50 on the two sets of support plates 20 are connected by a second connecting plate 52. A drive assembly 60 is disposed on the top plate 30 and is used to drive the first connecting plate 42 and the second connecting plate 52 to move in a synchronous direction. The heating assembly 70 is disposed on one of the mounting brackets 11. The electric heater 73 can be a tubular electric heating tube with a built-in heating wire that generates heat when energized.

[0029] Before the composite film is passed through the device, the first connecting plate 42 is driven down and the second connecting plate 52 is driven up by the driving assembly 60. The first connecting plate 42 descends, driving the first stretching roller 41 to descend, so that the upper part of the first stretching roller 41 is lower than the upper part of the guide roller 12. The second connecting plate 52 rises, driving the second stretching roller 51 to rise, so that the lower part of the second stretching roller 51 is higher than the upper part of the guide roller 12. At this time, the composite film starts from the upper side of the guide roller 12 below the heating assembly 70, passes through the lower side of the second stretching roller 51 and the upper side of the first stretching roller 41. Due to the adjustment of the positions of the first stretching roller 41 and the second stretching roller 51, the composite film does not need to go around the first stretching roller 41 and the second stretching roller 51, making it more convenient and more efficient to pass the composite film through the device, reducing the workload of the staff. After passing through the device, the composite film is connected to the winding device. Subsequently, the driving component 60 drives the first connecting plate 42 to rise and the second connecting plate 52 to fall, thereby driving the first stretching roller 41 to rise and the second stretching roller 51 to fall, so that the first stretching roller 41 and the second stretching roller 51 are staggered up and down, so that the roller surfaces of the first stretching roller 41 and the second stretching roller 51 are in contact with the composite film, and then the heating component 70 is started to heat the composite film, the winding device starts to wind the composite film, and the feeding device unwinds the composite film that has not undergone the stretching operation. The winding speed of the winding device is greater than the unwinding speed of the feeding device, and the composite film is stretched when it passes through the first stretching roller 41 rising and the second stretching roller 51.

[0030] Specifically, the support plate 20 is provided with a strip-shaped hole 21 whose length direction is consistent with the length direction of the support plate 20. The first sliding block 40 and the second sliding block 50 are slidably connected to the corresponding strip-shaped hole 21 to ensure the sliding stability of the first sliding block 40 and the second sliding block 50. The guide roller 12, the first stretching roller 41, and the second stretching roller 51 are each provided with a blocking ring 90 at both ends to limit the position of the composite film. The heating assembly 70 includes an electric push rod 71 vertically arranged at the top of the mounting frame 11. The piston rod of the electric push rod 71 is downward and is provided with a mounting seat 72. The bottom of the mounting seat 72 is provided with an electric heater 73. The electric push rod 71 controls the height of the mounting seat 72 and thus controls the height of the electric heater 73, thereby adjusting the heating effect on the composite film. Two spaced-apart sliding tubes 74 are vertically provided at the top of the mounting frame 11. A sliding rod 75 is slidably provided inside the sliding tube 74. The bottoms of the two sliding rods 75 are connected to the mounting seat 72 to further ensure the stability of the position of the mounting seat 72 and the electric heater 73.

[0031] When set, the distance from the second sliding block 50 away from the second stretching roller 51 to the second stretching roller 51 is greater than the distance from the first sliding block 40 away from the first stretching roller 41 to the first stretching roller 41, so that the distance between the second connecting plate 52 and the support plate 20 is greater than the distance between the first connecting plate 42 and the support plate 20. The drive assembly 60 includes two vertically arranged bidirectional threaded rods 61 spaced apart from each other. The lower ends of the bidirectional threaded rods 61 are rotatably connected to the bottom plate 10 and the upper ends are rotatably connected to the top plate 30. The bidirectional threaded rods 61 are arranged between the corresponding first connecting plate 42 and the second connecting plate 52. A first vertical plate 62 extends downward from the bottom of the first connecting plate 42, a first connecting block 63 is provided at the bottom of the first vertical plate 62, a second vertical plate 64 extends upward from the top of the second connecting plate 52, and a second connecting block 65 is provided at the top of the second vertical plate 64. The first connecting block 63 screws with the lower portion of the corresponding bidirectional threaded rod 61 through a threaded hole, and the second connecting block 65 screws with the upper portion of the corresponding bidirectional threaded rod 61 through a threaded hole. A drive unit 80 is provided on the top plate 30 to drive the two bidirectional threaded rods 61 to rotate. The drive unit 80 drives the bidirectional threaded rods 61 to rotate, driving the first connecting block 63 and the first vertical plate 62 to rise, while driving the second connecting block 65 and the second vertical plate 64 to descend, thereby causing the first connecting plate 42 to rise and the second connecting plate 52 to descend.

[0032] Specifically, the drive unit 80 includes a plurality of mounting plates 81 spaced apart along the width of the bottom plate 10. A rotating shaft 82 is provided for the plurality of mounting plates 81 to rotate together. The upper end of the bidirectional threaded rod 61 passes through the top plate 30 and is provided with a first bevel gear 83. Second bevel gears 84 are spaced apart on the rotating shaft 82, and the second bevel gears 84 mesh with the corresponding first bevel gears 83. The mounting plates 81 are provided on both sides of the first bevel gear 83 to ensure the stability of the rotating shaft 82, thereby ensuring the stable meshing of the second bevel gears 84 with the corresponding first bevel gears 83. The rotating shaft 82 rotates, mobilizing the first bevel gear 83 to rotate, thereby driving the second bevel gear 84 and the bidirectional threaded rod 61 to rotate. A worm gear 85 is provided on the rotating shaft 82. Support blocks 88 are provided on both sides of the worm gear 85 on the top plate 30. A worm 86 is provided on the two support blocks 88 for co-rotation. The length direction of the worm 86 is perpendicular to the length direction of the rotating shaft 82. The worm 86 cooperates with the worm gear 85. A drive motor 87 is provided horizontally on the top plate 30. The output shaft of the drive motor 87 is connected to the end of the worm 86. The drive motor 87 drives the worm 86 to rotate, causing the worm gear 85 and the rotating shaft 82 to rotate. Because the worm gear 85 and the worm 86 are self-locking, that is, only the worm 86 can drive the worm gear 85, so that after the positions of the first stretching roller 41 and the second stretching roller 51 are adjusted, the positions of the first stretching roller 41 and the second stretching roller 51 will not change, thereby ensuring the stability of the composite film stretching.

[0033] The operating principle of a stretching device for producing high-strength, environmentally friendly plastic-woven composite film in this embodiment is as follows: Before the composite film is passed through the device, the drive motor 87 is first activated to drive the worm 86 to rotate, causing the worm gear 85, the rotating shaft 82, the first bevel gear 83, the second bevel gear 84, and the bidirectional threaded rod 61 to rotate, causing the first connecting plate 42 to descend and the second connecting plate 52 to ascend, thereby driving the first stretching roller 41 to descend and the second stretching roller 51 to ascend. At this time, the composite film is passed from the upper side of the guide roller 12 below the heating assembly 70, through the lower side of the second stretching roller 51 and the upper side of the first stretching roller 41, and after passing through the device, it is connected to the winding device. Subsequently, the first connecting plate 42 is driven to rise and the second connecting plate 52 is driven to fall by the driving motor 87, which drives the first stretching roller 41 to rise and the second stretching roller 51 to fall, so that the roller surfaces of the first stretching roller 41 and the second stretching roller 51 are in contact with the composite film, and then the electric heater 73 is started to heat the composite film, and the winding device starts to wind the composite film, and the feeding device unwinds the composite film that has not undergone the stretching operation. The winding speed of the winding device is greater than the unwinding speed of the feeding device, and the composite film is stretched when it passes through the first stretching roller 41 rising and the second stretching roller 51.

[0034] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A stretching device for producing high-strength environmentally friendly plastic woven composite film, characterized by: The invention comprises a bottom plate (10), mounting frames (11) are provided on both sides of the bottom plate (10) in the longitudinal direction, guide rollers (12) are provided on the mounting frames (11) for horizontal rotation, four groups of support plates (20) are provided on the bottom plate (10) between the two mounting frames (11) along the longitudinal direction of the bottom plate (10), each group of support plates (20) comprises two symmetrically arranged support plates (20), a top plate (30) is provided on the top of the mounting frames (11) and the support plates (20), first sliding blocks (40) are provided on the two groups of support plates (20) near the middle of the bottom plate (10) for vertical sliding, and a corresponding first sliding block (40) is provided between the two first sliding blocks (40) for rotation. A first stretching roller (41) is provided, and second sliding blocks (50) are vertically slidably arranged on the two groups of support plates (20) adjacent to the mounting frame (11); a second stretching roller (51) is slidably arranged between the two corresponding second sliding blocks (50); the first sliding blocks (40) on the two groups of support plates (20) are connected by a first connecting plate (42); the second sliding blocks (50) on the two groups of support plates (20) are connected by a second connecting plate (52); a driving component (60) for driving the first connecting plate (42) and the second connecting plate (52) to move in a synchronous direction is provided on the top plate (30); and a heating component (70) is provided on one of the mounting frames (11).

2. The stretching device for producing high-strength environmentally friendly plastic-woven composite film according to claim 1, characterized in that: The support plate (20) is provided with a strip hole (21) whose length direction is consistent with the length direction of the support plate (20), and the first sliding block (40) and the second sliding block (50) are slidably connected to the corresponding strip hole (21).

3. The stretching device for producing high-strength environmentally friendly plastic-woven composite film according to claim 1, characterized in that: The distance between the second sliding block (50) and the second stretching roller (51) is greater than the distance between the first sliding block (40) and the first stretching roller (41). The driving assembly (60) includes two vertically arranged bidirectional threaded rods (61) spaced apart. The lower end of the bidirectional threaded rod (61) is rotatably connected to the bottom plate (10) and the upper end is rotatably connected to the top plate (30). The bidirectional threaded rod (61) is arranged between the corresponding first connecting plate (42) and the second connecting plate (52). The bottom of the first connecting plate (42) extends downward. A first vertical plate (62) is provided on the top of the first vertical plate (62), a first connecting block (63) is provided on the bottom of the first vertical plate (62), a second vertical plate (64) is provided on the top of the second connecting plate (52), the first connecting block (63) is screwed with the lower part of the corresponding bidirectional threaded rod (61) through a threaded hole, and the second connecting block (65) is screwed with the upper part of the corresponding bidirectional threaded rod (61) through a threaded hole, and a driving unit (80) for driving the two bidirectional threaded rods (61) to rotate is provided on the top plate (30).

4. The stretching device for producing high-strength environmentally friendly plastic-woven composite film according to claim 3, characterized in that: The driving unit (80) comprises a plurality of mounting plates (81) arranged at intervals along the width direction of the bottom plate (10), and a rotating shaft (82) is provided for the plurality of mounting plates (81) to rotate together. The upper end of the bidirectional threaded rod (61) passes through the top plate (30) and is provided with a first bevel gear (83). Second bevel gears (84) are arranged at intervals on the rotating shaft (82), and the second bevel gears (84) are meshed with the corresponding first bevel gears (83). A worm gear (85) is provided on the rotating shaft (82). Support blocks (88) are provided on both sides of the worm gear (85) on the top plate (30). A worm (86) is provided on the two support blocks (88) to rotate together. The worm (86) cooperates with the worm gear (85). A driving motor (87) is provided on the top plate (30), and the output shaft of the driving motor (87) is connected to the end of the worm gear (86).

5. The stretching device for producing high-strength environmentally friendly plastic-woven composite film according to claim 1, characterized in that: The heating assembly (70) comprises an electric push rod (71) vertically arranged on the top of the mounting frame (11), the piston rod of the electric push rod (71) is downwardly facing and provided with a mounting seat (72), and the bottom of the mounting seat (72) is provided with an electric heater (73).

6. A stretching device for producing high-strength environmentally friendly plastic-woven composite film according to claim 5, characterized in that: Two spaced-apart sliding tubes (74) are vertically arranged on the top of the mounting frame (11), a sliding rod (75) is slidably arranged inside the sliding tube (74), and the bottoms of the two sliding rods (75) are connected to the mounting seat (72).

7. The stretching device for producing high-strength environmentally friendly plastic-woven composite film according to claim 1, characterized in that: Blocking rings (90) are provided at both ends of the guide roller (12), the first stretching roller (41), and the second stretching roller (51).

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