PVA film dyeing and stretching device

Abstract

The utility model relates to the technical field of PVA films, in particular to a PVA film dyeing and stretching device which comprises a motor, a fixing part and two rotating discs, an output shaft of the motor is fixedly connected with a rotating rod, the outer surface of the rotating rod is fixedly connected with a rotating part, and the rotating part, a rotary groove, a roller, a first connecting rod, a second connecting rod and other parts are arranged. The motor drives the rotating rod and the rotating piece to rotate synchronously, the rotating grooves in the surface of the rotating piece make contact with the rolling wheels, the corresponding rolling wheels are driven to be connected with the rotating grooves, at the moment, the rotating effect of the fixing piece is achieved through the rolling wheels and the fixing pins, and the rotating piece can rotate by 30 degrees through the rolling wheels after rotating by one circle; and then the first connecting rod, the second connecting rod and the rotating disc are driven to rotate by two circles, so that the corresponding winding drums can stop at the corresponding positions, the effect of sequentially releasing the films can be achieved, the working time of manually releasing the films one by one is omitted, the effect of continuously releasing the films is achieved, and the film releasing efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of PVA films, and in particular to a PVA film dyeing and stretching device. Background Art

[0002] Polyvinyl alcohol film, referred to as PVA, has a density of 1.26-1,29g / cm3 and a refractive index of 1.52. It emits blue-white light after being irradiated with ultraviolet light. This product has high water absorption and can dissolve in water. The moisture content of the fiber can reach 30%-50%, and the moisture content can reach 4.5% under an environment of 65% RH and 25°C. It can pass water vapor, but it is difficult to pass alcohol vapor, let alone organic solvent vapor, inert gas and hydrogen. The barrier property of polyvinyl alcohol film is even better than that of vinylidene chloride film.

[0003] In the process of PVA film production, it is generally processed through film laying, dyeing, stretching, coloring, drying and other technical methods. Due to the stretching, the cohesion between PVA film molecules is enhanced, the mechanical strength is improved, and the toughness is similar to that of cellophane. It can be compounded with other films to make two-layer, three-layer or more-layer composite films to meet the needs of food packaging.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: However, in the existing PVA film dyeing and stretching device, during the film laying process, it is necessary to manually replace the film laying reels one by one, which prolongs the film laying working hours and cannot achieve the effect of continuous film laying. The film laying efficiency is low, and the rotating rollers used in stretching will be worn and the surface needs maintenance after long-term use. The existing PVA film dyeing and stretching device cannot facilitate the disassembly and adjustment of the position of the rotating rollers. Summary of the invention

[0005] In order to improve the film laying efficiency, reduce the film laying time, and facilitate the position adjustment and disassembly of the rotating roller, the present application provides a PVA film dyeing and stretching device.

[0006] A PVA film dyeing and stretching device provided in the present application adopts the following technical scheme: a PVA film dyeing and stretching device, comprising a motor, a fixing part and two rotating disks, the output shaft of the motor is fixedly connected to a rotating rod, the outer surface of the rotating rod is fixedly connected to a rotating part, the outer surface of the rotating part is provided with a rotating groove, the outer surface of the fixing part is fixedly connected to fixing pins arranged at equal distances, the outer surface of each of the fixing pins is rotatably connected to a roller, the outer surface of each of the rollers is in contact with the inner wall of the rotating groove, the inner wall of the fixing part is fixedly connected to a connecting rod 1, the outer surface of the connecting rod 1 is slidably connected to a connecting rod 2, the inner wall of one of the rotating disks is fixedly connected to the outer surface of the connecting rod 1, and the inner wall of the other rotating disk is fixedly connected to the outer surface of the connecting rod 2.

[0007] Optionally, a sliding groove is provided on the outer surface of each rotating disk, a sliding block is slidably connected to the inner wall of each sliding groove, a threaded rod is threadedly connected to the interior of each sliding block, a support frame is rotatably connected to the outer surface of each threaded rod, and a side of each support frame that is close to each other is fixedly connected to a side of the corresponding rotating disk that is away from each other.

[0008] Optionally, the back side of the motor is provided with support rings and reels arranged at equal distances, the inner wall of each support ring is provided with an annular groove, the inner wall of each annular groove is slidably connected with an annular part, the inner wall of each annular part is fixedly connected to the outer surface of the corresponding rotating disk, the inner wall of each reel is sleeved with the outer surface of the corresponding sliding block, and each support ring is fixedly connected to a support rod on one side away from each other.

[0009] Optionally, a base plate is provided under the motor, and two sliding grooves 2 are provided on the upper surface of the base plate, the inner wall of each sliding groove 2 is slidably connected with a sliding block 2, the interior of each sliding block 2 is threadedly connected with a threaded rod 2, the outer surface of each threaded rod 2 is rotatably connected to the interior of the base plate, and the upper surface of each sliding block 2 is fixedly connected to the bottom end of the corresponding support rod.

[0010] Optionally, two guide rods are provided above the base plate, wherein the interior of one of the support rods is fixedly connected to the outer surface of the corresponding guide rod, and the interior of the other support rod is slidably connected to the outer surface of the corresponding guide rod.

[0011] Optionally, a toothed belt is provided on the front side of the base plate, and two gears are meshed on the inner wall of the toothed belt, and the inner wall of each gear is fixedly connected to the outer surface of the corresponding threaded rod 2.

[0012] Optionally, a mounting plate is provided on the right side of the base plate, and two support plates 1 and two support plates 2 are fixedly connected to the upper surface of the mounting plate, and the inner walls of each of the support plates 1 and 2 are slidably connected with sliding blocks 3 arranged at equal distances, and each side of the support plates 1 and 2 away from each other is fixedly connected with fixed frames arranged at equal distances, and each side of the fixed frames away from each other is fixedly connected with limit blocks arranged at equal distances.

[0013] Optionally, rotating rollers and sliding rods arranged at equal distances are provided above the mounting plate, the inner wall of each sliding block three is slidably connected to the outer surface of the corresponding sliding rod, and the inner wall of each rotating roller is sleeved on the outer surface of the corresponding sliding rod.

[0014] Optionally, the outer surface of each sliding block three is slidably connected to a sliding plate, the upper surface and bottom surface of each sliding plate are provided with equidistantly arranged limit grooves, the inner wall of each limit groove is in sliding contact with the outer surface of the corresponding limit block, and the outer surface of each sliding block three is threadedly connected to a threaded cylinder.

[0015] Optionally, two support blocks are fixedly connected to the front side of one of the support rods, the right side of one of the support blocks is fixedly connected to the left side of the motor, and the left side of the other support block is rotatably connected to the right end of the rotating rod.

[0016] In summary, this application includes the following beneficial technical effects:

[0017] 1. The utility model sets a rotating part, a rotating groove, a roller, a connecting rod one, a connecting rod two and other components, and drives the rotating rod and the rotating part to rotate synchronously through a motor, and drives the corresponding roller to be connected to the rotating groove through the contact between the rotating groove on the surface of the rotating part and the roller. At this time, the rotation effect of the fixed part is realized through the roller and the fixed pin. When the rotating part rotates one circle, the rotating part can be rotated thirty degrees through the roller, thereby driving the connecting rod one, the connecting rod two and the rotating disk to rotate. After two rotations, the corresponding reel can be stopped at the corresponding position, thereby realizing the effect that the device can release the film in sequence, saving the time of manual single film release, realizing the effect of uninterrupted film release, and improving the film release efficiency.

[0018] 2. The utility model arranges sliding block three, limit blocks, sliding rods, sliding plates, threaded barrels and other components, places the rotating roller on the surface of the sliding rod, places the sliding rod inside the sliding block three, drives the sliding rod and the rotating roller to move by moving the sliding block three, places the sliding plate on the surface of the sliding block three, and connects with the corresponding limit blocks through limit grooves to limit the sliding block three, connects the threaded barrel with the corresponding sliding block three, thereby achieving the effect that the device can easily adjust the distance between the rotating rollers, and can achieve the effect of quick installation and disassembly of the rotating rollers, which is convenient for maintenance and care of the rotating rollers.

[0019] 3. The utility model sets up sliding block 2, threaded rod 2, gears, toothed belts and other components. By rotating one of the threaded rods 2, the gear is driven to rotate. Through the meshing between the gear and the toothed belt, the other gear and threaded rod 2 can rotate synchronously. Through the threaded connection between the threaded rod 2 and the sliding block 2, the sliding block 2 is driven to move inside the sliding groove 2, and then the support rod is driven to move on the surface of the guide rod, thereby achieving the effect of adjusting the distance between the two support rods, and then being able to cut PVA films of different sizes, thereby improving the applicability of the device.

[0020] 4. The utility model sets up components such as a sliding block, a threaded rod, and a support frame. The support frame is installed, and the threaded rod is placed inside it for rotation. A sliding groove is opened to place the sliding block inside it. The threaded connection between the threaded rod and the sliding block is used to achieve the movement effect of the sliding block, thereby releasing the connection between the sliding block and the reel, so that the device can be used to quickly replace the reel after the film is released. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure in the embodiment of the present application;

[0022] Figure 2 It is a schematic diagram of the structure above the mounting plate in an embodiment of the present application;

[0023] Figure 3 It is a structural schematic diagram of the connection relationship between the gear and the toothed belt in the embodiment of the present application;

[0024] Figure 4 It is a structural schematic diagram of the connection relationship between the rotary groove and the roller in the embodiment of the present application;

[0025] Figure 5 It is a structural schematic diagram of the connection relationship between the sliding block 1 and the threaded rod 1 in the embodiment of the present application;

[0026] Figure 6 This is a schematic diagram of the structure of the support plate 1 in the embodiment of the present application;

[0027] Figure 7 It is a structural schematic diagram of the connection relationship between the limiting block and the limiting groove in the embodiment of the present application.

[0028] 1. The cam frame includes the support frame, the support frame, the support ring ... DETAILED DESCRIPTION

[0029] The following is combined with Figure 1 —7 further describes this application in detail.

[0030] The present application discloses a PVA film dyeing and stretching device. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, it includes a motor 1, a fixing member 5 and two rotating disks 10. The output shaft of the motor 1 is fixedly connected to a rotating rod 2. The rotating rod 2 is placed on the output shaft of the motor 1. The motor 1 can realize the rotation effect of the rotating rod 2. The outer surface of the rotating rod 2 is fixedly connected to a rotating member 3. The rotating member 3 is installed on the surface of the rotating rod 2 to achieve a positioning effect on the rotating member 3. The rotation effect of the rotating member 3 is achieved by rotating the rotating rod 2. A rotating groove 4 is opened on the outer surface of the rotating member 3. The rotating groove 4 is positioned by the surface of the rotating member 3. The outer surface of the fixing member 5 is fixedly connected to fixing pins 6 arranged at equal distances. The fixing pins 6 are positioned and installed by the fixing member 5.

[0031] like Figure 4 As shown, the outer surface of each fixing pin 6 is rotatably connected with a roller 7, and the roller 7 is rotatably connected to the surface of the fixing pin 6, and the limiting effect of the roller 7 is achieved through the fixing pin 6. The outer surface of each roller 7 contacts the inner wall of the rotary groove 4, and the roller 7 contacts the inner wall of the rotary groove 4, and the roller 7 is sequentially advanced through the rotary groove 4. The inner wall of the fixing member 5 is fixedly connected with a connecting rod 1 8, and the outer surface of the connecting rod 1 8 is slidably connected with a connecting rod 2 9. The connecting rod 1 8 is placed on the inner wall of the fixing member 5 and fixedly connected to achieve the positioning effect of the connecting rod 1 8. Through the connection between the rotary groove 4 and the roller 7, the rotating member 3 rotates one circle, and the connecting rod 1 8 rotates thirty degrees. The connecting rod 2 9 is placed on the surface of the connecting rod 1 8, and the connection is achieved through the groove between the connecting rod 1 8 and the connecting rod 2 9, and the rotation effect of the connecting rod 2 9 is achieved through the connecting rod 1 8.

[0032] like Figure 5 As shown, the inner wall of one of the rotating disks 10 is fixedly connected to the outer surface of the connecting rod 1 8, and one of the rotating disks 10 is fixed to the corresponding connecting rod 1 8 to achieve the effect of rotating the rotating disk 10, and the inner wall of the other rotating disk 10 is fixedly connected to the outer surface of the connecting rod 2 9, and the other rotating disk 10 is connected to the connecting rod 2 9, and the effect of synchronous rotation of the two rotating disks 10 is achieved through the connecting rod 1 8 and the connecting rod 2 9.

[0033] like Figure 5As shown, a sliding groove 11 is provided on the outer surface of each rotating disk 10, and the sliding groove 11 is positioned by the rotating disk 10. A sliding block 12 is slidably connected to the inner wall of each sliding groove 11, and the sliding block 12 is installed inside the sliding groove 11. The limiting effect of the sliding block 12 is achieved by the contour of the sliding groove 11. A threaded rod 13 is threadedly connected to the inside of each sliding block 12, and the threaded rod 13 is installed inside the sliding block 12, and a threaded connection is set between them, and the effect of moving the sliding block 12 is achieved by rotating the threaded rod 13.

[0034] like Figure 4 , Figure 5 As shown, the outer surface of each threaded rod 13 is rotatably connected to a support frame 14, and the support frame 14 is installed and rotatably connected to the surface of the threaded rod 13 to achieve a positioning effect on the support frame 14. The sides of each support frame 14 that are close to each other are fixedly connected to the sides of the corresponding rotating disk 10 that are away from each other. The support frame 14 is connected to the corresponding rotating disk 10, and the support frame 14 is limited by the rotating disk 10, and the support and limiting effects of the threaded rod 13 are achieved by the support frame 14.

[0035] like Figure 4 , Figure 5 As shown, the back of the motor 1 is provided with support rings 16 and reels 15 which are arranged at equal distances. The support rings 16 and reels 15 are placed on the back of the motor 1. The inner wall of each support ring 16 is provided with an annular groove 17. The positioning effect of the annular groove 17 is achieved by the support ring 16. The inner wall of each annular groove 17 is slidably connected with an annular member 18. The annular member 18 is installed inside the annular groove 17. The limiting effect of the annular member 18 is achieved by the contour of the annular groove 17.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the inner wall of each annular member 18 is fixedly connected to the outer surface of the corresponding rotating disk 10, and the inner wall of the annular member 18 is fixed to the corresponding rotating disk 10 to achieve a limiting effect on the annular member 18. When the rotating disk 10 rotates, the annular member 18 is driven to rotate. The inner wall of each reel 15 is sleeved with the outer surface of the corresponding sliding block 12. The inner wall of the reel 15 is sleeved with the surface of the corresponding sliding block 12 to facilitate replacement of the reel 15. A side of each support ring 16 that is away from each other is fixedly connected to a support rod 19. The support rod 19 is placed on the surface of the support ring 16, and the support effect of the support ring 16 is achieved through the support rod 19.

[0037] like Figure 1 , Figure 2 , Figure 3 As shown, a base plate 20 is provided under the motor 1, and the base plate 20 is placed under the motor 1. Two sliding grooves 21 are provided on the upper surface of the base plate 20. The sliding grooves 21 are provided on the surface of the base plate 20 to achieve a positioning effect on the sliding grooves 21, and the bottom surface of one of the support rods 19 is fixed to the base plate 20 to achieve a limiting effect on one of the support rods 19. The inner wall of each sliding groove 21 is slidably connected with a sliding block 22. The sliding block 22 is placed inside the sliding groove 21, and a sliding connection is set therebetween. The limiting effect of the sliding block 22 is achieved through the contour of the sliding groove 21.

[0038] like Figure 3 As shown, the interior of each sliding block 22 is threadedly connected with a threaded rod 23, the threaded rod 23 is placed inside the sliding block 22, and a threaded connection is set between them, and the movement effect of the sliding block 22 is achieved by rotating the threaded rod 23, and the outer surface of each threaded rod 23 is rotationally connected to the interior of the base plate 20, and the threaded rod 23 is rotationally connected to the interior of the base plate 20 to achieve a limiting effect on the threaded rod 23, and the upper surface of each sliding block 22 is fixedly connected to the bottom end of the corresponding support rod 19, and the surface of the sliding block 22 is connected to the corresponding support rod 19, and the movement effect of the support rod 19 is achieved by the movement of the sliding block 22.

[0039] like Figure 2 , Figure 3 As shown, two guide rods 26 are provided above the base plate 20, and the guide rods 26 are placed above the base plate 20, the interior of one of the support rods 19 is fixedly connected to the outer surface of the corresponding guide rod 26, and the interior of one of the support rods 19 is fixed to the guide rod 26 to limit the guide rod 26, and the interior of the other support rod 19 is slidably connected to the outer surface of the corresponding guide rod 26, and the other support rod 19 is slid with the surface of the guide rod 26, and the support and limitation of the support rod 19 are achieved through the guide rod 26.

[0040] like Figure 3 As shown, a toothed belt 25 is provided on the front side of the base plate 20, and the toothed belt 25 is placed on the front side of the base plate 20. Two gears 24 are meshed on the inner wall of the toothed belt 25. The gears 24 are installed inside the toothed belt 25, and the toothed belt 25 is meshed with the gears 24. Through the movement of the toothed belt 25, the synchronous rotation effect of the two gears 24 is achieved. The inner wall of each gear 24 is fixedly connected to the outer surface of the corresponding threaded rod 23, and the gear 24 is connected to the corresponding threaded rod 23. By rotating one of the threaded rods 23, the gear 24 is driven to mesh with the toothed belt 25, and the rotation effect of the other gear 24 and the threaded rod 23 is achieved.

[0041] Combination Figure 6 and Figure 7 A mounting plate 27 is provided on the right side of the base plate 20, and the mounting plate 27 is placed on the right side of the base plate 20. Two support plates 1 28 and two support plates 29 are fixedly connected to the upper surface of the mounting plate 27. The mounting plate 27 realizes the supporting effect of the support plates 1 28 and the support plates 2 29. The inner walls of each support plate 1 28 and the support plates 2 29 are slidably connected with sliding blocks 3 30 arranged at equal distances. The sliding blocks 3 30 are placed in grooves on the surfaces of the support plates 1 28 and the support plates 2 29, and are set to be slidingly connected to achieve the limiting effect of the sliding blocks 3 30.

[0042] Combination Figure 6 and Figure 7 , each side of the support plate 1 28 and the support plate 2 29 away from each other is fixedly connected with a fixed frame 31 arranged at an equal distance, and the fixed frame 31 is installed on the side of the support plate 1 28 and the support plate 2 29 away from each other to achieve the positioning and installation effect of the fixed frame 31, and each side of the fixed frame 31 away from each other is fixedly connected with a limit block 32 arranged at an equal distance, and the limit block 32 is positioned and installed through the surface of the fixed frame 31, and the distance between each limit block 32 is the same.

[0043] Combination Figure 6 and Figure 7 , rotating rollers 37 and sliding rods 33 arranged at equal distances are provided above the mounting plate 27, the rotating rollers 37 and sliding rods 33 are placed above the mounting plate 27, the inner wall of each sliding block three 30 is slidably connected to the outer surface of the corresponding sliding rod 33, and the inner wall of the sliding block three 30 is slidably connected to the surface of the sliding rod 33 to achieve the positioning effect of the sliding rod 33, the inner wall of each rotating roller 37 is sleeved on the outer surface of the corresponding sliding rod 33, the rotating roller 37 is sleeved on the surface of the corresponding sliding rod 33 to achieve the limiting effect of the rotating roller 37.

[0044] like Figure 7 As shown, the outer surface of each sliding block three 30 is slidably connected with a sliding plate 34, the sliding plate 34 is installed on the surface of the sliding block three 30, and a sliding connection is set between them to achieve a limiting effect on the sliding plate 34, the upper surface and the bottom surface of each sliding plate 34 are provided with equidistantly arranged limiting grooves 35, the limiting grooves 35 are opened on the upper surface and the bottom surface of the sliding plate 34, the inner wall of each limiting groove 35 is in sliding contact with the outer surface of the corresponding limiting block 32, and the limiting groove 35 is in contact with the corresponding limiting block 32, and the limiting effect of the sliding plate 34 is achieved through the connection between the limiting groove 35 and the limiting block 32, the outer surface of each sliding block three 30 is threadedly connected with a threaded barrel 36, the threaded barrel 36 is threadedly connected to the surface of the sliding block three 30, and the limiting effect of the sliding rod 33 can be achieved through the threaded barrel 36.

[0045] Combination Figure 3 and Figure 4 Two support blocks 38 are fixedly connected to the front side of one of the support rods 19, and the support block 38 is fixed to the front side of one of the support rods 19 to achieve the positioning and installation effect of the support block 38. The right side of one of the support blocks 38 is fixedly connected to the left side of the motor 1, and the right side of one of the support blocks 38 is fixed to the motor 1 to achieve the support and limiting effect of the motor 1. The left side of the other support block 38 is rotatably connected to the right end of the rotating rod 2, and the left side of the other support block 38 is connected to the rotating rod 2 to achieve the support and limiting effect of the rotating rod 2.

[0046] The implementation principle of a PVA film dyeing and stretching device in the embodiment of the present application is as follows: the motor 1 drives the rotating rod 2 to rotate, and the rotating member 3 is driven to rotate through the rotating rod 2. At this time, the rotary groove 4 is connected to the roller 7, driving the next roller 7 to enter the rotary groove 4, so that the fixed member 5 drives the connecting rod 1 8 to rotate, and the connecting rod 1 8 drives the connecting rod 2 9 to rotate, and the rotating disk 10 rotates accordingly. The rotating member 3 rotates two circles, and the rotating disk 10 rotates sixty degrees, so that the corresponding reel 15 stops at the corresponding position. The reel 15 is replaced by the threaded connection between the threaded rod 13 and the sliding block 12. The gear 24 is driven to rotate by rotating the threaded rod 23, and the corresponding The threaded rod 23 rotates, the threaded rod 23 drives the sliding block 22 to move, the sliding block 22 drives the support rod 19 to move, and then drives the rotating disk 10 to move, so as to adjust the distance between the two rotating disks 10 and clamp PVA films of different specifications, and move the corresponding sliding block 30 to drive the sliding rod 33 and the rotating roller 37 to move, and the sliding block 30 is limited by the connection between the limiting groove 35 and the limiting block 32, and the sliding rod 33 is limited by rotating the threaded cylinder 36 to connect with the corresponding sliding block 30, so as to limit the sliding rod 33 and then limit the rotating roller 37, so as to facilitate the adjustment of the distance between the corresponding rotating rollers 37 and facilitate the disassembly of the rotating roller 37 for maintenance.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A PVA film dyeing and stretching device, comprising a motor (1), a fixing member (5) and two rotating disks (10), characterized in that: The output shaft of the motor (1) is fixedly connected to a rotating rod (2), the outer surface of the rotating rod (2) is fixedly connected to a rotating member (3), the outer surface of the rotating member (3) is provided with a revolving groove (4), the outer surface of the fixing member (5) is fixedly connected to fixing pins (6) arranged at equal distances, the outer surface of each fixing pin (6) is rotatably connected to a roller (7), the outer surface of each roller (7) is in contact with the inner wall of the revolving groove (4), the inner wall of the fixing member (5) is fixedly connected to a connecting rod 1 (8), the outer surface of the connecting rod 1 (8) is slidably connected to a connecting rod 2 (9), the inner wall of one of the rotating disks (10) is fixedly connected to the outer surface of the connecting rod 1 (8), and the inner wall of the other rotating disk (10) is fixedly connected to the outer surface of the connecting rod 2 (9).

2. A PVA film dyeing and stretching device according to claim 1, characterized in that: The outer surface of each rotating disk (10) is provided with a sliding groove (11), the inner wall of each sliding groove (11) is slidably connected to a sliding block (12), the interior of each sliding block (12) is threadedly connected to a threaded rod (13), the outer surface of each threaded rod (13) is rotatably connected to a support frame (14), and the side of each support frame (14) that is close to each other is fixedly connected to the side of the corresponding rotating disk (10) that is away from each other.

3. A PVA film dyeing and stretching device according to claim 1, characterized in that: The back of the motor (1) is provided with support rings (16) and reels (15) arranged at equal distances, the inner wall of each support ring (16) is provided with an annular groove (17), the inner wall of each annular groove (17) is slidably connected with an annular member (18), the inner wall of each annular member (18) is fixedly connected with the outer surface of the corresponding rotating disk (10), the inner wall of each reel (15) is sleeved with the outer surface of the corresponding sliding block (12), and the side of each support ring (16) away from each other is fixedly connected with a support rod (19).

4. A PVA film dyeing and stretching device according to claim 3, characterized in that: A base plate (20) is provided below the motor (1), and two sliding grooves (21) are provided on the upper surface of the base plate (20), and the inner wall of each sliding groove (21) is slidably connected to a sliding block (22), and the interior of each sliding block (22) is threadedly connected to a threaded rod (23), and the outer surface of each threaded rod (23) is rotatably connected to the interior of the base plate (20), and the upper surface of each sliding block (22) is fixedly connected to the bottom end of the corresponding support rod (19).

5. A PVA film dyeing and stretching device according to claim 4, characterized in that: Two guide rods (26) are provided above the bottom plate (20), wherein the interior of one of the support rods (19) is fixedly connected to the outer surface of the corresponding guide rod (26), and the interior of the other support rod (19) is slidably connected to the outer surface of the corresponding guide rod (26).

6. A PVA film dyeing and stretching device according to claim 4, characterized in that: A toothed belt (25) is provided on the front side of the bottom plate (20), and two gears (24) are meshed on the inner wall of the toothed belt (25), and the inner wall of each gear (24) is fixedly connected to the outer surface of the corresponding threaded rod 2 (23).

7. A PVA film dyeing and stretching device according to claim 4, characterized in that: A mounting plate (27) is provided on the right side of the base plate (20), and two support plates (28) and two support plates (29) are fixedly connected to the upper surface of the mounting plate (27), and the inner wall of each of the support plates (28) and the support plates (29) is slidably connected to a sliding block (30) arranged at an equal distance, and a side of each of the support plates (28) and the support plates (29) away from each other is fixedly connected to a fixed frame (31) arranged at an equal distance, and a side of each of the fixed frames (31) away from each other is fixedly connected to a limit block (32) arranged at an equal distance.

8. A PVA film dyeing and stretching device according to claim 7, characterized in that: The mounting plate (27) is provided with rotating rollers (37) and sliding rods (33) arranged at equal distances, the inner wall of each sliding block (30) is slidably connected to the outer surface of the corresponding sliding rod (33), and the inner wall of each rotating roller (37) is sleeved on the outer surface of the corresponding sliding rod (33).

9. A PVA film dyeing and stretching device according to claim 8, characterized in that: The outer surface of each sliding block three (30) is slidably connected to a sliding plate (34), the upper surface and the bottom surface of each sliding plate (34) are provided with equidistantly arranged limiting grooves (35), the inner wall of each limiting groove (35) is in sliding contact with the outer surface of the corresponding limiting block (32), and the outer surface of each sliding block three (30) is threadedly connected to a threaded tube (36).

10. The PVA film dyeing and stretching device according to claim 3, characterized in that: Two support blocks (38) are fixedly connected to the front side of one of the support rods (19), the right side of one of the support blocks (38) is fixedly connected to the left side of the motor (1), and the left side of the other support block (38) is rotatably connected to the right end of the rotating rod (2).

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