Flattening equipment for degradable plastic film

Abstract

The utility model relates to the technical field of plastic films, and discloses a flattening device for degradable plastic films, which comprises a support plate, two ends of the top of the support plate are fixedly connected with fixing plates, one sides, close to each other, of the two fixing plates are rotatably connected with two-way screw rods through first rotating bearings, and the two-way screw rods are rotatably connected with second rotating bearings. The two ends of the rod wall of the bidirectional lead screw are in threaded connection with sliding blocks, the bottoms of the two sliding blocks are in contact connection with the top of the supporting plate, transverse plates are fixedly arranged on the tops of the two sliding blocks, two symmetrically-arranged vertical plates are fixedly arranged on the tops of the two transverse plates, and rotating rods are rotationally connected to the sides, close to each other, of the left vertical plate and the right vertical plate through second rotating bearings. A first transmission roller and a second transmission roller are fixedly arranged at the other ends of the rod walls of the two rotating rods correspondingly. According to the flattening equipment for the degradable plastic film, films with different widths and sizes can be rapidly and conveniently flattened.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic films, in particular to a flattening device for degradable plastic films. Background Art

[0002] Degradable films have the functions and characteristics of traditional plastics, and after reaching the end of their service life, they can be broken down and degraded in the natural environment through the action of microorganisms in the soil and water or through the action of ultraviolet rays in the sun, and finally re-enter the ecological environment in a reduced form and return to nature. The existing production process of degradable plastic films requires that the films be exhibited to prevent sticking during winding.

[0003] Among them, patent number CN207957273U discloses a flattening device for degradable plastic film, which is provided with a film pressing plate, which is slidably connected to a guide roller bracket, and the distance between the film pressing plate and the guide roller can be adjusted according to the thickness of the degradable plastic film on the guide roller. The film pressing plate exerts a force on the degradable plastic film, thereby ensuring that the degradable plastic film is flattened. At the same time, the flattening device is also provided with a flattening roller, which exerts a force on the degradable plastic film during the movement of the degradable plastic film, thereby ensuring that the entire degradable plastic film is always in a tensioned state, effectively avoiding the aggregation of the degradable plastic film, but the device has certain defects when used:

[0004] When in use, the device can only display films of one width specification. When the width of the film is too small or too large, the length of the guide roller cannot be effectively adjusted according to the width of the film, thereby being suitable for flattening the film. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the shortcomings of the prior art, the utility model provides a flattening device for degradable plastic film, which has the advantage of being able to conveniently adjust the length of the guide roller according to the width specifications of the film, thereby being able to quickly and conveniently flatten films of different widths, and solves the problem that when the width of the film is too small or too large, the length of the guide roller cannot be effectively adjusted according to the width of the film, making it inconvenient for people to use.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flattening device for degradable plastic film, comprising a support plate, both ends of the top of the support plate are fixedly connected to a fixing plate, the adjacent sides of the two fixing plates are rotatably connected to a bidirectional screw rod through a first rotating bearing, both ends of the rod wall of the bidirectional screw rod are threadedly connected to sliders, the bottoms of the two sliders are in contact with the top of the support plate, the tops of the two sliders are fixedly provided with a horizontal plate, the tops of the two horizontal plates are fixedly provided with two symmetrically arranged vertical plates, the adjacent sides of the left and right vertical plates are rotatably connected to a rotating rod through a second rotating bearing, the other ends of the rod walls of the two rotating rods are respectively fixedly provided with a first transmission roller and a second transmission roller, the first transmission roller and A plurality of third transmission rollers connected end to end are arranged between the second transmission rollers, a square block is fixedly arranged on the left side of the third transmission roller and the second transmission roller, a square groove is opened on the right side of the first transmission roller and the third transmission roller, the square block is in contact with and connected to the inner surface of the groove wall of the square groove, and the four vertical plates are fixedly connected to two symmetrically arranged connecting plates on the side away from the third transmission roller, a rotation limiting mechanism is arranged between the two connecting plates, the lower ends of the four vertical plates are rotatably connected to cross bars through third rotation bearings, the ends of the two front cross bars and the two rear cross bars, and transmission mechanisms are arranged below the connecting plates, the other ends of the two left and right cross bars pass through the vertical plates and extend to the outside, and a transverse telescopic transmission mechanism is arranged on the side where the two cross bars are close to each other.

[0009] Preferably, the rotation limiting mechanism includes a worm wheel and a worm, the front lower end of the vertical plate is rotatably connected to a transmission rod via a fourth rotation bearing, the worm wheel is fixedly sleeved on the front end of the rod wall of the transmission rod, both ends of the worm are rotatably connected to the side close to the two connecting plates via a fifth rotation bearing, the worm is meshed with the worm wheel, a connecting rod is fixedly provided on the front side of the worm wheel, a limiting roller is fixedly provided on the other end of the connecting rod, the limiting roller is contacted and connected with the roller wall of the first transmission roller, and the bottom of the worm passes through the connecting plate below and extends to the outside.

[0010] Preferably, the transmission mechanism includes a first bevel gear and a second bevel gear, the first bevel gear is fixedly connected to the bottom of the rod wall of the worm, the second bevel gear is fixedly connected to an end away from the vertical plate, and the first bevel gear and the second bevel gear are meshed.

[0011] Preferably, the transverse telescopic transmission mechanism includes two symmetrically arranged limit blocks, and the two limit blocks are respectively fixedly connected to the side close to the two cross bars, and the two limit blocks are each provided with a slot on the side close to the two cross bars, and the two slots are each provided with a slide groove on the upper and lower sides, and the groove walls of the two slide grooves are commonly contacted and connected with a slide plate, and a slide rod is fixedly provided between the two slide plates, and the two ends of the rod wall of the slide rod are respectively contacted and connected with the groove walls of the two slots.

[0012] Preferably, both ends of the rod wall of the bidirectional screw rod respectively pass through the two fixed plates and extend to the outside, and the left end of the rod wall of the bidirectional screw rod is fixedly connected to the first rotating block.

[0013] Preferably, the upper end of the rod wall of the worm gear on the left side passes through the upper connecting plate and extends to the outside, and a second rotating block is fixedly provided on the top of the rod wall of the worm gear on the left side.

[0014] Preferably, the limiting roller is made of rubber material.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a flattening device for degradable plastic film, which has the following beneficial effects:

[0017] 1. The flattening device for degradable plastic film can conveniently adjust the length of the transmission roller according to the width of the film through the support plate, the fixed plate, the bidirectional screw rod, the first rotating block, the slider, the horizontal plate, the vertical plate, the first transmission roller, the second transmission roller and multiple third transmission rollers, so as to be suitable for various occasions.

[0018] 2. The flattening device for degradable plastic film can limit the two sides of the film during the film transmission exhibit process through the connecting plate, vertical plate, rotation limiting mechanism, second rotating block, cross bar and transverse telescopic transmission mechanism to prevent the film from wrinkling or sticking. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a flattening device for degradable plastic film proposed by the utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of a top view structure;

[0021] Figure 3 for Figure 1 A magnified view of the structure of the local A part;

[0022] Figure 4 for Figure 1 A magnified view of the structure of part B in the middle.

[0023] In the figure: 1 supporting plate, 2 fixing plate, 3 bidirectional screw, 4 sliding block, 5 horizontal plate, 6 vertical plate, 7 rotating rod, 8 first transmission roller, 9 second transmission roller, 10 third transmission roller, 11 square block, 12 connecting plate, 13 horizontal rod, 14 worm gear, 15 worm, 16 transmission rod, 17 limiting roller, 18 first bevel gear, 19 second bevel gear, 20 limiting block, 21 sliding plate, 22 sliding rod, 23 first rotating block, 24 second rotating block, 25 connecting rod. DETAILED DESCRIPTION

[0024] 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 in 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.

[0025] See also Figure 1-4 A flattening device for degradable plastic film comprises a support plate 1, both ends of the top of the support plate 1 are fixedly connected with a fixed plate 2, the adjacent sides of the two fixed plates 2 are rotatably connected with a bidirectional screw rod 3 through a first rotating bearing, both ends of the rod wall of the bidirectional screw rod 3 are threadedly connected with a slider 4, the bottoms of the two sliders 4 are in contact with the top of the support plate 1 to limit the lateral movement of the slider 4, a horizontal plate 5 is fixedly provided on the top of the two sliders 4, two symmetrically arranged vertical plates 6 are fixedly provided on the top of the two horizontal plates 5, and a rotating rod 7 is rotatably connected with the adjacent sides of the left and right vertical plates 6 through a second rotating bearing, and the other ends of the rod walls of the two rotating rods 7 are respectively fixed with a first transmission roller 8 and a second transmission roller 9, and a first transmission roller 8 and a second transmission roller 9 are arranged between the first transmission roller 8 and the second transmission roller 9. There are multiple third transmission rollers 10 connected end to end, a square block 11 is fixedly provided on the left side of the third transmission roller 10 and the second transmission roller 9, a square groove is opened on the right side of the first transmission roller 8 and the third transmission roller 10, the square block 11 is in contact with the inner surface of the groove wall of the square groove, and the four vertical plates 6 are fixedly connected to two symmetrically arranged connecting plates 12 on the side away from the third transmission roller 10, and a rotation limiting mechanism is arranged between the two connecting plates 12, and the lower ends of the four vertical plates 6 are rotatably connected to the cross bar 13 through the third rotating bearing, and the ends of the two front cross bars 13 and the two rear cross bars 13 and the ends below the connecting plates 12 are provided with a transmission mechanism, the other ends of the left and right cross bars 13 pass through the vertical plates 6 and extend to the outside, and a transverse telescopic transmission mechanism is arranged on the side where the two cross bars 13 are close to each other.

[0026] The rotation limiting mechanism includes a worm wheel 14 and a worm 15. The front lower end of the vertical plate 6 is rotatably connected to a transmission rod 16 through a fourth rotation bearing. The worm wheel 14 is fixedly sleeved with the front end of the rod wall of the transmission rod 16. Both ends of the worm 15 are rotationally connected to the side close to the two connecting plates 12 through a fifth rotation bearing. The worm 15 is meshed with the worm wheel 14. A connecting rod 25 is fixedly provided on the front side of the worm wheel 14. A limiting roller 17 is fixedly provided at the other end of the connecting rod 25. The limiting roller 17 is in contact with the roller wall of the first transmission roller 8. The bottom of the worm 15 passes through the lower connecting plate 12 and extends to the outside. The meshing transmission between the worm wheel 14 and the worm 15 has a self-locking ability, and the limiting roller 17 is provided to limit the two sides of the film during the exhibition process to prevent wrinkles and adhesion on both sides of the film.

[0027] The transmission mechanism includes a first bevel gear 18 and a second bevel gear 19. The first bevel gear 18 is fixedly connected to the bottom of the rod wall of the worm 15, and the second bevel gear 19 is fixedly connected to the end away from the vertical plate 6. The first bevel gear 18 and the second bevel gear 19 are meshed.

[0028] The transverse telescopic transmission mechanism includes two symmetrically arranged limit blocks 20, and the two limit blocks 20 are respectively fixedly connected to the side close to the two cross bars 13. The two limit blocks 20 are each provided with a slot on the side close to the two limit blocks 20, and the upper and lower sides of the two slots are provided with a slide groove. The groove walls of the two slide grooves are commonly contacted and connected with a slide plate 21, and a slide rod 22 is fixedly provided between the two slide plates 21. The two ends of the rod wall of the slide rod 22 are respectively contacted and connected with the groove walls of the two slots, and the rotation of the slide rod 22 is limited by the contact between the slide plate 21 and the slide groove.

[0029] The two ends of the rod wall of the bidirectional screw rod 3 pass through the two fixed plates 2 respectively and extend to the outside. The left end of the rod wall of the bidirectional screw rod 3 is fixedly connected with a first rotating block 23. The first rotating block 23 is provided to facilitate the rotation of the first rotating block 23. The upper end of the rod wall of the left worm 15 passes through the upper connecting plate 12 and extends to the outside. A second rotating block 24 is fixedly provided on the top of the rod wall of the left worm 15. The second rotating block 24 is provided to facilitate the rotation of the worm 15. The limiting roller 17 is made of rubber material to prevent damage to the film when limiting the exhibit.

[0030] In summary, when the flattening device for degradable plastic film is used, the distance between the two vertical plates 6 is first adjusted according to the width of the film. First, the first rotating block 23 is rotated to rotate the bidirectional screw rod 3. While the bidirectional screw rod 3 is rotating, the sliders 4 at both ends of the rod wall move along the support plate 1, thereby driving the horizontal plate 5 and the vertical plate 6 on the top to move horizontally. By changing the number of the third transmission rollers 10 and plugging the square blocks 11 into the square grooves, the distance between the two vertical plates 6 and the length of the overall transmission roller 9 are conveniently adjusted. Then, the film passes through the roller walls of the front and rear roller groups and contacts the roller walls, and then the second rotating block 24 is rotated. The left worm 15 is caused to rotate. When the worm 15 rotates, the first bevel gear 18 and the second bevel gear 19 at the lower end of the rod wall are meshed, and the limit block 20 is driven to rotate through the cross bar 13. When the limit block 20 rotates, the internal slide bar 22 is limited by the slide plate 21 and the slide groove, so that the slide bar 22 and the limit block 20 rotate at the same time, so that the two worms 15 rotate at the same time. When the worm 15 rotates, it meshes with the worm wheel 14, so that the worm wheel 14 rotates around the transmission rod 16, and drives the connecting rod 25 and the limit roller 17 to rotate. The limit roller 17 rotates and contacts the two sides of the film to prevent the film from wrinkling and sticking on the side during the exhibition process.

[0031] It should be noted that the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article, or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flattening device for a degradable plastic film, comprising a support plate (1), characterized in that: The top ends of the support plate (1) are fixedly connected to a fixing plate (2), and the adjacent sides of the two fixing plates (2) are rotatably connected to a bidirectional screw rod (3) via a first rotating bearing. The rod wall ends of the bidirectional screw rod (3) are threadedly connected to sliders (4). The bottoms of the two sliders (4) are in contact with the top of the support plate (1). The tops of the two sliders (4) are fixedly provided with a horizontal plate (5). The tops of the two horizontal plates (5) are fixedly provided with two symmetrically arranged vertical plates (6). The adjacent sides of the left and right vertical plates (6) are rotatably connected to a rotating rod (7) via a second rotating bearing. The other ends of the rod walls of the two rotating rods (7) are respectively fixedly provided with a first transmission roller (8) and a second transmission roller (9). A plurality of third transmission rollers (10) connected end to end are arranged between the first transmission roller (8) and the second transmission roller (9). A square block (11) is fixedly provided on the left side of the third transmission roller (10) and the second transmission roller (9); a square groove is provided on the right side of the first transmission roller (8) and the third transmission roller (10); the square block (11) is in contact with the inner surface of the groove wall of the square groove; two symmetrically arranged connecting plates (12) are fixedly connected to the side of the four vertical plates (6) away from the third transmission roller (10); a rotation limiting mechanism is provided between the two connecting plates (12); the lower ends of the four vertical plates (6) are rotationally connected to a cross bar (13) via a third rotation bearing; the ends of the two front cross bars (13) and the two rear cross bars (13) and below the connecting plates (12) are provided with a transmission mechanism; the other ends of the two left and right cross bars (13) pass through the vertical plates (6) and extend to the outside; a transverse telescopic transmission mechanism is provided on the side where the two cross bars (13) are close to each other.

2. The flattening device for degradable plastic film according to claim 1, characterized in that: The rotation limiting mechanism comprises a worm wheel (14) and a worm (15); the lower front end of the vertical plate (6) is rotationally connected to a transmission rod (16) via a fourth rotation bearing; the worm wheel (14) is fixedly sleeved with the front end of the rod wall of the transmission rod (16); both ends of the worm (15) are rotationally connected to the adjacent side of the two connecting plates (12) via a fifth rotation bearing; the worm (15) is meshed with the worm wheel (14); a connecting rod (25) is fixedly provided on the front side of the worm wheel (14); a limiting roller (17) is fixedly provided on the other end of the connecting rod (25); the limiting roller (17) is contact-connected with the roller wall of the first transmission roller (8); the bottom of the worm (15) passes through the connecting plate (12) below and extends to the outside.

3. The flattening device for degradable plastic film according to claim 1, characterized in that: The transmission mechanism comprises a first bevel gear (18) and a second bevel gear (19); the first bevel gear (18) is fixedly connected to the bottom of the rod wall of the worm (15); the second bevel gear (19) is fixedly connected to an end away from the vertical plate (6); the first bevel gear (18) and the second bevel gear (19) are meshed.

4. The flattening device for degradable plastic film according to claim 1, characterized in that: The transverse telescopic transmission mechanism comprises two symmetrically arranged limit blocks (20), the two limit blocks (20) are respectively fixedly connected to the adjacent sides of the two cross bars (13), the adjacent sides of the two limit blocks (20) are each provided with a slot, the upper and lower sides of the two slots are each provided with a slide groove, the groove walls of the two slide grooves are commonly contacted and connected with a slide plate (21), a slide rod (22) is fixedly provided between the two slide plates (21), and the rod walls of the slide rod (22) are respectively contacted and connected with the groove walls of the two slots.

5. The flattening device for degradable plastic film according to claim 1, characterized in that: Both ends of the rod wall of the bidirectional screw rod (3) pass through the two fixing plates (2) respectively and extend to the outside, and the left end of the rod wall of the bidirectional screw rod (3) is fixedly connected to a first rotating block (23).

6. The flattening device for degradable plastic film according to claim 2, characterized in that: The upper end of the rod wall of the worm gear (15) on the left side passes through the upper connecting plate (12) and extends to the outside, and a second rotating block (24) is fixedly provided on the top of the rod wall of the worm gear (15) on the left side.

7. The flattening device for degradable plastic film according to claim 2, characterized in that: The limiting roller (17) is made of rubber material.

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