Stretching device for processing breathable film

Abstract

The utility model relates to the technical field of breathable film production, in particular to a stretching device for breathable film processing, which comprises a base, two fixing plates are symmetrically arranged on the base, a winding roller is detachably arranged between the two fixing plates through a dismounting mechanism, a breathable film is wound on the outer side of the winding roller, a first displacement component is arranged on the base, and a second displacement component is arranged on the base. The first displacement assembly comprises a first threaded rod, the output end of the first motor is fixedly connected with the first threaded rod, the first threaded rod is rotationally connected with the base through a bearing, a limiting mechanism is arranged on the base and comprises a moving block and a pressing roller, the bottom end of the moving block is in threaded connection with the first threaded rod, and a sliding rod is fixedly connected into the inner cavity. Sliding blocks are symmetrically connected to the sliding rods in a sliding mode, springs are connected between the sliding blocks and the inner wall of the inner cavity, the sliding rods are sleeved with the springs, one sides of the sliding blocks are rotationally connected with rotating shafts, and the rotating shafts are fixedly connected with the pressing rollers.

Description

Technical Field

[0001] The utility model relates to the technical field of breathable film production, in particular to a stretching device for breathable film processing. Background Art

[0002] At present, during the production process of breathable membranes, it is often necessary to perform a film blowing process on the breathable membranes, and during the film blowing process, the breathable membranes need to be stretched.

[0003] The existing stretching device will deviate during the process of stretching the breathable membrane. The deviated raw material will rub and collide with the positioning components, causing a large amount of breathable membrane damage, resulting in losses, reducing the work efficiency and quality of stretching. At the same time, it is inconvenient to disassemble and replace the winding roller, affecting the stretching process. Utility Model Content

[0004] The utility model aims to provide a stretching device for processing a breathable film, so as to solve the technical problems that the breathable film is damaged due to the deviation of the breathable film and the winding roller is inconvenient to be disassembled and replaced.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The cam is provided with two fixing plates at the right end, and a winding roller is detachably provided between the two fixing plates through a disassembly mechanism. The winding roller is wrapped with a breathable film on the outer side of the winding roller. The left end of the base is provided with a first displacement assembly and a limiting assembly, and the two limiting mechanisms are driven by the first displacement assembly to move closer to or away from each other to limit the position of the breathable film. Each of the limiting mechanisms includes a moving block and a pressing roller. The bottom of the moving block is transmission-connected to the first displacement assembly. An inner cavity is provided on the inner side of the moving block, and a sliding rod is fixedly connected to the inner cavity. Two sliding blocks are symmetrically and slidably connected to the sliding rod, and springs are provided between the two sliding blocks and the inner wall of the inner cavity. The spring is sleeved on the sliding rod, and one side of the two sliding blocks is rotatably connected to two rotating shafts respectively, and the two pressing rollers are fixedly connected to the two rotating shafts respectively for clamping the breathable film.

[0007] Preferably, the disassembly mechanism comprises a rotating rod, the rotating rod is rotatably connected to the fixed plate via a bearing, one side of the rotating rod is fixedly connected to a limiting plate, and one side of the limiting plate is fixedly connected to an insertion rod.

[0008] Preferably, a third motor is fixedly connected to one of the fixed plates, and the rotating rod is fixedly connected to an output end of the third motor.

[0009] Preferably, a roller cavity is opened on the inner side of the winding roller, and the roller cavity is adapted to the insertion rod.

[0010] Preferably, a second displacement assembly is provided on the base, the second displacement assembly includes a second motor and a threaded block, the second motor is fixedly connected to the base, a second threaded rod is fixedly connected to the output end of the second motor, the second threaded rod is rotatably connected to the base via a bearing, a threaded block is threadedly connected to the second threaded rod, the threaded block is fixedly connected to the fixed plate, a second slide groove is provided on the base, and the threaded block is slidably connected to the second slide groove.

[0011] Preferably, the first displacement assembly includes a first threaded rod and a first motor, the output end of the first motor is fixedly connected to the first threaded rod, the first threaded rod is rotatably connected to the base via a bearing, the first threaded rod is a bidirectional threaded rod, and both ends of the first threaded rod are respectively threadedly connected to the bottom ends of the moving blocks of the two limiting mechanisms.

[0012] Preferably, a first sliding groove is provided on the base, and the bottom end of the moving block is slidably connected to the first sliding groove.

[0013] Preferably, a lifting rod is provided on the base, a support plate is fixedly connected to the lifting rod, and the support plate is located below the winding roller.

[0014] The beneficial effects of the utility model are:

[0015] By setting a limit mechanism and a limit plate, the slider drives the pressing roller on the rotating shaft to be close to the breathable membrane, stretching the breathable membrane, thereby playing a limiting role and preventing the breathable membrane from deviating, effectively improving the working efficiency and quality of stretching. In addition, it can also adapt to the stretching of breathable membranes of different thicknesses.

[0016] By providing the first displacement component, starting the first motor can drive the limiting mechanisms to move toward each other, and the distance between the limiting mechanisms can be adjusted according to the width of the breathable membrane that needs to be stretched, thereby improving the practicability of the device.

[0017] By setting up a second displacement component and a disassembly mechanism, starting the second motor, and then driving the insertion rod to disengage from the inner cavity of the roller, the fixed limit of the winding roller is released, and the winding roller can be disassembled and replaced. The disassembly and installation process is relatively convenient, and it can also be adapted to the installation and use of winding rollers of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a structural schematic diagram of a stretching device for processing a breathable film according to the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the limit mechanism of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the disassembly mechanism of the utility model;

[0022] Figure 4 It is a schematic diagram of the transmission process of the breathable membrane of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Base; 2. Limiting mechanism; 21. Pressure roller; 22. Rotating shaft; 23. Spring; 24. Inner cavity; 25. Sliding block; 26. Sliding rod; 27. Moving block; 3. First displacement assembly; 31. First slide groove; 32. First threaded rod; 33. First motor; 4. Second displacement assembly; 41. Threaded block; 42. Second motor; 43. Second threaded rod; 44. Second slide groove; 5. Disassembly mechanism; 51. Limiting plate; 52. Inserting rod; 53. Rotating rod; 54. Fixed plate; 6. Winding roller; 7. Breathable membrane; 8. Roller inner cavity; 9. Support plate; 10. Lifting rod; 11. Third motor. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 , the utility model provides a technical solution:

[0027] A stretching device for processing a breathable film comprises a base 1, two fixed plates 54 are symmetrically arranged at the right end of the base 1, a winding roller 6 is detachably arranged between the two fixed plates 54 through a disassembly mechanism 5, and a breathable film 7 is wound around the outer side of the winding roller 6, a first displacement component 3 and two limiting mechanisms 2 are arranged at the left end of the base 1, the first displacement component 3 comprises a first threaded rod 32 and a first motor 33, the output end of the first motor 33 is fixedly connected to the first threaded rod 32, the first threaded rod 32 is rotatably connected to the base 1 through a bearing, and the first threaded rod 32 is a bidirectional threaded rod, so that the first threaded rod 32 can be driven to rotate by starting the first displacement component 3, and the two The two limiting mechanisms 2 move towards or away from each other to adjust the limit of the breathable membrane 7. The two limiting mechanisms 2 each include a moving block 27 and two clamping rollers 21. The bottom end of the moving block 27 is threadedly connected to the first threaded rod 32. An inner cavity 24 is provided on the inner side of the moving block 27. A slide rod 26 is fixedly connected to the inner cavity 24. Two sliders 25 are symmetrically slidably connected to the slide rod 26. A spring 23 is connected between the slider 25 and the inner wall of the inner cavity 24. The spring 23 is sleeved on the slide rod 26. One side of the two sliders 25 is rotatably connected to two rotating shafts 22 respectively. The two clamping rollers 21 are fixedly connected to the two rotating shafts 22 respectively for clamping the breathable membrane.

[0028] In this embodiment, the disassembly mechanism 5 facilitates the disassembly and replacement of the winding roller, and the disassembly and installation process is relatively convenient. The first displacement component 3 starts the first motor to drive the limiting mechanisms to move toward each other. The distance between the limiting mechanisms is adjusted according to the width of the breathable membrane 7 that needs to be stretched, thereby improving the practicality of the device. The limiting mechanism 2 stretches the breathable membrane, thereby playing a limiting role, and at the same time can prevent the breathable membrane 7 from being offset, effectively improving the working efficiency and quality of stretching, and can also adapt to the stretching of breathable membranes of different thicknesses.

[0029] Specifically, the disassembly mechanism 5 includes a fixed plate 54 and a rotating rod 53. The rotating rod 53 is rotatably connected to the fixed plate 54 through a bearing. One side of the rotating rod 53 is fixedly connected to a limit plate 51. One side of the limit plate 51 is fixedly connected to an insertion rod 52. A third motor 11 is fixedly connected to one of the fixed plates 54. The rotating rod 53 is fixedly connected to the output end of the third motor 11. The roller cavity 8 is adapted to the insertion rod 52. The third motor 11 is started to drive the rotating rod 53, the limit plate 51 and the winding roller 6 to rotate, so as to wind and stretch the breathable film 7. The limit plate 51 plays a limiting role to prevent the breathable film 7 from deflecting during the winding process, so that the insertion rod 52 is moved out of the roller cavity 8, and the winding roller 6 can be removed for disassembly and replacement.

[0030] Specifically, the base 1 is provided with a second displacement assembly 4, which includes a second motor 42 and a threaded block 41. The second motor 42 is fixedly connected to the base 1, and a second threaded rod 43 is fixedly connected to the output end of the second motor 42. The second threaded rod 43 is rotatably connected to the base 1 through a bearing, and a threaded block 41 is threadedly connected to the second threaded rod 43. The threaded block 41 is fixedly connected to the fixed plate 54. A second slide groove 44 is provided on the base 1, and the threaded block 41 is slidably connected to the second slide groove 44. The second motor 42 is started to drive the second threaded rod 43 to rotate. Since the threaded block 41 is threadedly connected to the second threaded rod 43, under the limiting action of the second slide groove 44, the rotation of the second threaded rod 43 drives the threaded block 41 to move backward, thereby driving the insertion rod 52 to disengage from the roller inner cavity 8, releasing the fixed limit of the winding roller 6, and the winding roller 6 can be disassembled and replaced.

[0031] Specifically, a first slide groove 31 is provided on the base 1, and the bottom end of the moving block 27 is slidably connected to the first slide groove 31. Since the moving block 27 is threadedly connected to the first threaded rod 32, under the limiting effect of the first slide groove 31, the rotation of the first threaded rod 32 drives the moving block 27 to move forward and backward.

[0032] Specifically, a lifting rod 10 is provided on the base 1, and a support plate 9 is fixedly connected to the lifting rod 10, and the support plate 9 is located below the winding roller 6. The lifting rod 10 is started to drive the support plate 9 to move upward so as to abut against the breathable membrane 7, so as to facilitate the disassembly and replacement of the winding roller 6.

[0033] The working principle of this embodiment is:

[0034] When the device is in use, the first motor 33 is started to drive the first threaded rod 32 to rotate. Since the moving block 27 is threadedly connected to the first threaded rod 32, the limiting mechanism 2 can be driven to move towards each other under the limiting action of the first slide groove 31. The distance between the limiting mechanisms 2 is adjusted according to the width of the breathable membrane 7 that needs to be stretched, thereby improving the practicability of the device.

[0035] When it is necessary to install the winding roller 6, the insertion rod 52 on one side of the disassembly mechanism 5 is aligned with the roller cavity 8 on the winding roller 6 and inserted therein, and the second motor 42 is started to drive the second threaded rod 43 to rotate. Since the threaded block 41 is threadedly connected with the second threaded rod 43, under the limiting action of the second slide groove 44, the rotation of the second threaded rod 43 drives the threaded block 41 to move forward and backward, thereby inserting the insertion rod 52 on the other side of the disassembly mechanism 5 into the roller cavity 8, and then fixing and clamping the winding roller 6, which can adapt to the installation and use of winding rollers 6 of different lengths.

[0036] like Figure 4As shown, the pressure roller 21 is pulled to drive the slider 25 on the rotating shaft 22 to move in the inner cavity 24, and the slider 25 squeezes the spring, so that the breathable membrane 7 passes through the pressure rollers 21 and is then wound around the winding roller 6 for stretching. The pressure roller 21 is released, and the elastic force of the spring 23 restores the slider 25. The slider 25 drives the pressure roller 21 on the rotating shaft 22 to be close to the breathable membrane 7, thereby stretching the breathable membrane 7 and preventing the breathable membrane 7 from being offset. In addition, it can also adapt to the stretching of breathable membranes 7 of different thicknesses.

[0037] When the winding roller 6 needs to be disassembled, the second motor 42 is started to drive the second threaded rod 43 to reverse, thereby driving the insertion rod 52 to disengage from the roller inner cavity 8, releasing the fixed limit of the winding roller 6, and the winding roller 6 can be disassembled and replaced.

[0038] The lifting rod 10 is started to drive the support plate 9 to move upward so as to abut against the breathable membrane 7, so as to facilitate the disassembly and replacement of the winding roller 6.

Claims

1. A stretching device for processing a breathable film, comprising a base (1), wherein two fixing plates (54) are symmetrically arranged at the right end of the base (1), a winding roller (6) is detachably arranged between the two fixing plates (54) via a disassembly mechanism (5), and a breathable film (7) is wound around the outer side of the winding roller (6), characterized in that: A first displacement assembly (3) and a limiting mechanism (2) are arranged at the left end of the base (1). The two limiting mechanisms (2) are driven by the first displacement assembly (3) to move closer to or farther from each other for limiting the position of the breathable membrane. Each of the limiting mechanisms (2) comprises a moving block (27) and a pressing roller (21). The bottom end of the moving block (27) is transmission-connected to the first displacement assembly (3). An inner cavity (24) is provided on the inner side of the moving block (27). A sliding rod (26) is fixedly connected to the inner cavity (24). Two sliding blocks (25) are symmetrically slidably connected to the sliding rod (26). A spring (23) is arranged between the two sliding blocks (25) and the inner wall of the inner cavity (24). The spring (23) is sleeved on the sliding rod (26). One side of the two sliding blocks (25) is respectively rotatably connected to two rotating shafts (22). The two pressing rollers (21) are respectively fixedly connected to the two rotating shafts (22) for clamping the breathable membrane.

2. A stretching device for processing a breathable film according to claim 1, characterized in that: The disassembly mechanism (5) comprises a rotating rod (53), the rotating rod (53) being rotatably connected to the fixed plate (54) via a bearing, one side of the rotating rod (53) being fixedly connected to a limiting plate (51), and one side of the limiting plate (51) being fixedly connected to an insertion rod (52).

3. A stretching device for processing a breathable film according to claim 2, characterized in that: A third motor (11) is fixedly connected to one of the fixed plates (54), and the rotating rod (53) is fixedly connected to an output end of the third motor (11).

4. A stretching device for processing a breathable film according to claim 2, characterized in that: A roller inner cavity (8) is provided on the inner side of the winding roller (6), and the roller inner cavity (8) is adapted to fit the insertion rod (52).

5. A stretching device for processing a breathable film according to claim 1, characterized in that: A second displacement assembly (4) is provided on the base (1), the second displacement assembly (4) comprising a second motor (42) and a threaded block (41), the second motor (42) being fixedly connected to the base (1), a second threaded rod (43) being fixedly connected to an output end of the second motor (42), the second threaded rod (43) being rotatably connected to the base (1) via a bearing, a threaded block (41) being threadedly connected to the second threaded rod (43), the threaded block (41) being fixedly connected to the fixing plate (54), a second slide groove (44) being provided on the base (1), the threaded block (41) being slidably connected to the second slide groove (44).

6. A stretching device for processing a breathable film according to claim 1, characterized in that: The first displacement assembly (3) comprises a first threaded rod (32) and a first motor (33); the output end of the first motor (33) is fixedly connected to the first threaded rod (32); the first threaded rod (32) is rotatably connected to the base (1) via a bearing; the first threaded rod (32) is a bidirectional threaded rod; and both ends of the first threaded rod (32) are respectively threadedly connected to the bottom ends of the moving blocks (27) of the two limiting mechanisms (2).

7. A stretching device for processing a breathable film according to claim 6, characterized in that: The base (1) is provided with a first sliding groove (31), and the bottom end of the moving block (27) is slidably connected to the first sliding groove (31).

8. The stretching device for processing a breathable film according to claim 1, characterized in that: A lifting rod (10) is provided on the base (1), a support plate (9) is fixedly connected to the lifting rod (10), and the support plate (9) is located below the winding roller (6).

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