Anti-static stretching device for polyphenylene sulfide film

Abstract

The utility model discloses a polyphenylene sulfide film anti-static stretching device which comprises a bottom frame, a first support, a second support and a third support are sequentially arranged on the bottom frame from left to right, a pair of pressing rollers are arranged between the first support in a rotating mode, a first motor is arranged on the first support, and the first motor is fixedly connected with the pressing rollers. An edge pressing assembly is arranged on the second bracket; the edge pressing assembly comprises a pair of edge pressing rollers, connecting blocks are symmetrically fixed to the two sides of the second support, the two ends of the edge pressing rollers are rotationally connected with the connecting blocks, and a driving assembly is arranged on the second support and connected with the edge pressing rollers; a wind-up roller is rotationally arranged between the third supports, and the third motor is fixedly connected with the wind-up roller; an electrostatic eliminator is slidably arranged on one side of the third support. The edge pressing rollers are driven by the driving assembly to rotate, the two sides of the film are stretched, side edge folding of the film in the stretching process is avoided, static electricity neutralization is carried out through the static electricity eliminator, and the influence of static electricity on the quality of the stretched film is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of film stretching equipment, in particular to an anti-static stretching device for a polyphenylene sulfide film. Background Art

[0002] Polyphenylene sulfide (PPS), also known as polyphenylene sulfide, is a high-performance thermoplastic resin with a melting point of 480-490°C and a decomposition temperature exceeding 400°C. PPS exhibits excellent resistance to high temperatures, chemical corrosion, aging, radiation, flame retardancy, and electrical insulation. Furthermore, it maintains excellent stability even under high temperature and humidity conditions. Consequently, PPS films are widely used in 5G communications, electrical insulation components (motors, transformers, wires, etc.), electronic components (lithium batteries, capacitors), and engineering films.

[0003] In the prior art, the authorized publication number "CN421459356U" discloses a PE cold-resistant film stretching device, which includes a winding body, a table provided on the inner side of the winding body, a side support frame fixedly connected to the top of the table, a roller body movably connected to the inner side of the side support frame, a transmission roller provided on the inner side of the winding body, and a transmission mechanism provided on both sides of the table, the transmission mechanism including a side sliding rail, a support plate and a sliding groove; by adjusting the height of the stretching roller, the PE cold-resistant film transported between the two rollers can be lifted, thereby quickly adjusting the tension of the PE cold-resistant film during stretching, ensuring uniform stretching of the film and improving product quality; by adjusting the movable position of the stretching roller, the horizontal direction of the PE cold-resistant film during transportation can be adjusted in a portable manner, which can adapt to different product requirements and process conditions, while improving the dimensional stability and strength of the product. The above technology still has some defects: for example, the film is prone to static electricity during the stretching process, which easily absorbs dust in the air to the surface of the film, resulting in unstable quality of the stretched film, and the two ends of the film are prone to curl inward during stretching, which easily causes the edges of the film to fold during winding. Utility Model Content

[0004] Based on the above background, the purpose of the present invention is to provide an anti-static stretching device for polyphenylene sulfide film.

[0005] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0006] A polyphenylene sulfide film anti-static stretching device comprises a base frame, wherein the base frame is provided with a first bracket, a second bracket and a third bracket in sequence from left to right, and the number of each bracket is two;

[0007] A pair of pressing rollers are rotatably provided between the two first brackets and are distributed up and down; a first motor is provided on one of the first brackets, and the first motor is fixedly connected to one of the pressing rollers;

[0008] A holding assembly is provided on each opposite side of the second bracket; the holding assembly includes a pair of holding rollers, the axes of the holding rollers are aligned with the stretching direction of the polyphenylene sulfide film, connecting blocks are symmetrically fixed on both sides of the second bracket, the ends of the holding rollers are rotatably connected to the connecting blocks, and a driving assembly is provided on the second bracket, the driving assembly is connected to one of the holding rollers;

[0009] A winding roller is rotatably provided between the two third brackets, a third motor is provided on one of the third brackets, and the third motor is fixedly connected to the winding roller;

[0010] A static eliminator is slidably provided on one side of the third bracket close to the second bracket.

[0011] Preferably, a slide groove is provided on the side of the third bracket close to the second bracket, an electric telescopic rod is fixedly provided in the slide groove, an output end of the electric telescopic rod is fixedly connected to a sliding rod, the sliding rod is slidably connected to the slide groove, and an electrostatic eliminator is connected between the two sliding rods. The electric telescopic rod can be used to control the distance between the electrostatic eliminator and the stretch film, thereby controlling the effect of electrostatic elimination.

[0012] Preferably, the driving assembly includes a driving wheel and a driven wheel, the driving wheel is rotatably arranged on the second bracket, the driven wheel is rotatably arranged on one of the connecting blocks and is connected to one of the pressure rollers, the driving wheel and the driven wheel are connected by a transmission belt, a second motor is fixed on the second bracket, the second motor is fixedly connected to the driving wheel, the driving wheel is driven to rotate by the second motor, and the driven wheel is driven to rotate by the transmission belt between the driving wheel and the driven wheel, thereby driving the pressure roller to rotate.

[0013] Preferably, both ends of the edge pressing roller are provided with rounded corners to avoid scratches on the edge of the film when passing between the edge pressing rollers.

[0014] Preferably, the winding roller includes a fixed block and a locking block, the fixed block is provided with a first groove, and the locking block is detachably connected to the fixed block through the first groove.

[0015] Preferably, a plurality of fixing pins are provided in the first groove, and a second groove corresponding to the fixing pins is formed on the engaging block.

[0016] Preferably, a third groove is provided at both ends of the first groove along the axial direction of the winding roller, and a protrusion is provided at both ends of the locking block, the protrusion is engaged with the third groove, and threaded holes are provided on the protrusion and the third groove, and a nut is rotatably provided in the threaded hole.

[0017] Preferably, the first bracket includes a first bracket upper portion and a first bracket lower portion, the first bracket upper portion is slidably nested in the first bracket lower portion, and the two pressing rollers are rotatably disposed on the first bracket upper portion and the first bracket lower portion respectively;

[0018] The second bracket includes a second bracket upper portion and a second bracket lower portion, the second bracket upper portion is slidably nested in the second bracket lower portion, and the two pressing rollers are rotatably disposed on the second bracket upper portion and the second bracket lower portion respectively;

[0019] The top of the first bracket and the top of the second bracket on the same side are both fixedly connected to a lifting plate, a connecting plate is fixedly provided on the top of the two lifting plates, a door frame is provided on the base frame, a cylinder is fixed on the door frame, and the output end of the cylinder is fixedly connected to the connecting plate.

[0020] The utility model has the following beneficial effects:

[0021] 1. The utility model realizes the stretching processing of polyphenylene sulfide film by making the winding speed of the winding roller greater than the feeding speed of the pinch roller through the different rotation speeds of the first motor and the third motor. The film is fed out from between the two pinch rollers, and both sides of the film pass through between the corresponding pressure rollers. The pressure rollers rotate under the drive of the driving component to stretch both sides of the film to avoid side folding of the film during the stretching process. The static eliminator neutralizes the positive and negative ions generated in the film stretching process through the high-voltage corona discharge of the tip to avoid the influence of static electricity on the quality of the film after stretching.

[0022] 2. The utility model drives the connecting plate to rise and fall through the cylinder, and the connecting plate drives the lifting plates on both sides to rise and fall, thereby controlling the rise and fall of the upper part of the first bracket and the upper part of the second bracket, wherein the bottom of the upper pressure roller and the upper pressure roller are located on the same plane, thereby adjusting the gap between the two pressure rollers or pressure rollers to adapt to the stretching of polyphenylene sulfide films of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0025] Figure 2 This is a front structural diagram of the door frame of the present invention;

[0026] Figure 3 This is a schematic diagram of the disassembled three-dimensional structure of the drive assembly of the present utility model;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the third bracket and the static eliminator of the present invention;

[0028] Figure 5 This is a schematic diagram of the split three-dimensional structure of the fixing block and the locking block of the utility model;

[0029] Figure 6 This is a schematic diagram of the disassembled three-dimensional structure of the fixing block and the locking block of the utility model from another perspective.

[0030] Wherein: 1. Base frame; 11. First bracket; 12. Second bracket; 13. Third bracket; 14. Door frame; 15. Cylinder;

[0031] 111. Upper portion of the first bracket; 112. Lower portion of the first bracket;

[0032] 121. Upper portion of the second bracket; 122. Lower portion of the second bracket;

[0033] 2.Pressing roller; 21.First motor;

[0034] 3. Edge holding assembly; 31. Edge holding roller; 32. Connecting block;

[0035] 4. Winding roller; 41. Third motor; 42. Fixing block; 43. Engaging block; 44. First groove; 45. Fixing pin; 46. Second groove; 47. Third groove; 48. Protrusion; 49. Nut;

[0036] 5. Static eliminator; 51. Slide; 52. Electric telescopic rod; 53. Sliding rod;

[0037] 6. Drive assembly; 61. Driving wheel; 62. Driven wheel; 63. Transmission belt; 64. Second motor;

[0038] 7. Lifting plate; 71. Connecting plate. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] In addition, in this utility model, the descriptions of "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0042] like Figure 1-6 As shown, a polyphenylene sulfide film anti-static stretching device includes a base frame 1, on which a first bracket 11, a second bracket 12 and a third bracket 13 are provided from left to right, and the number of each bracket is two;

[0043] A pair of pressing rollers 2 are rotatably provided between the two first brackets 11 and are distributed up and down. A first motor 21 is provided on one of the first brackets 11 and the first motor 21 is fixedly connected to one of the pressing rollers 2.

[0044] A holding assembly 3 is provided on each opposite side of the second bracket 12; the holding assembly 3 includes a pair of holding rollers 31, the axial direction of the holding rollers 31 being consistent with the stretching direction of the polyphenylene sulfide film, and connecting blocks 32 are symmetrically fixed on both sides of the second bracket 12. The ends of the holding rollers 31 are rotatably connected to the connecting blocks 32. A driving assembly 6 is provided on the second bracket 12, and the driving assembly 6 is connected to one of the holding rollers 31;

[0045] A winding roller 4 is rotatably provided between the two third brackets 13 , wherein a third motor 41 is provided on one of the third brackets 13 , and the third motor 41 is fixedly connected to the winding roller 4 ;

[0046] An electrostatic eliminator 5 is slidably mounted on one side of the third bracket 13 close to the second bracket 12 .

[0047] First, one end of the polyphenylene sulfide film is passed through the gap between the two pinching rollers 2 and the edge holding roller 31 and fixed on the winding roller 4, the static eliminator 5 is slid to the appropriate position above the film, and the stretching equipment is started. Through the different rotation speeds of the first motor 21 and the third motor 41, the winding speed of the winding roller 4 is made greater than the feeding speed of the pinching roller 2, so as to realize the stretching processing of the polyphenylene sulfide film. The film is fed out from between the two pinching rollers 2, and the two sides of the film pass through the corresponding edge holding rollers 31. The edge holding rollers 31 rotate under the drive of the drive component 6 to stretch the two sides of the film to prevent the side folding of the film during the stretching process. The static eliminator 5 uses the tip high-voltage corona discharge to neutralize the positive and negative ions generated during the stretching process of the film to prevent the static electricity from affecting the quality of the film after stretching. Finally, the stretched film is wound up by the winding roller 4.

[0048] Preferably, a slide groove 51 is provided on the side of the third bracket 13 close to the second bracket 12, and an electric telescopic rod 52 is fixed in the slide groove 51. The output end of the electric telescopic rod 52 is fixedly connected to a sliding rod 53, and the sliding rod 53 is slidably connected to the slide groove 51. An electrostatic eliminator 5 is connected between the two sliding rods 53. The electric telescopic rod 52 can be used to control the distance between the electrostatic eliminator 5 and the stretch film, thereby controlling the effect of electrostatic elimination.

[0049] Preferably, the driving assembly 6 includes a driving wheel 61 and a driven wheel 62, the driving wheel 61 is rotatably arranged on the second bracket 12, the driven wheel 62 is rotatably arranged on one of the connecting blocks 32 and is connected to one of the pressure rollers 31, the driving wheel 61 and the driven wheel 62 are connected by a transmission belt 63, a second motor 64 is fixed on the second bracket 12, the second motor 64 is fixedly connected to the driving wheel 61, the driving wheel 61 is driven to rotate by the second motor 64, and the driven wheel 62 is driven to rotate by the transmission belt 63 between the driving wheel 61 and the driven wheel 62, thereby driving the pressure roller 2 to rotate.

[0050] Preferably, both ends of the edge holding roller 31 are provided with rounded corners to avoid scratches on the edge of the film when passing between the edge holding rollers 31 .

[0051] Preferably, the winding roller 4 includes a fixed block 42 and a locking block 43 . The fixed block 42 is provided with a first groove 44 . The locking block 43 is detachably connected to the fixed block 42 via the first groove 44 .

[0052] Preferably, a plurality of fixing pins 45 are provided in the first groove 44 , and a second groove 46 corresponding to the fixing pins 45 is formed on the engaging block 43 .

[0053] Preferably, the first groove 44 is provided with a third groove 47 at both ends along the axial direction of the winding roller 4, and a protrusion 48 is provided at both ends of the locking block 43. The protrusion 48 is engaged with the third groove 47, and threaded holes are provided on the protrusion 48 and the third groove 47, and a nut 49 is rotatably provided in the threaded hole.

[0054] Before stretching, turn the nut 49 to disassemble the fixing block 42 and the locking block 43, put one end of the film into the first groove 44, and after the fixing nail 45 penetrates the film to fix its end, lock the locking block 43 into the first groove 44 to complete the fixation of the locking block 43 and the fixing block 42, thereby completing the fixation of the film end on the winding roller 4.

[0055] Preferably, the first bracket 11 includes a first bracket upper portion 111 and a first bracket lower portion 112, the first bracket upper portion 111 is slidably nested in the first bracket lower portion 112, and the two pressing rollers 2 are rotatably disposed on the first bracket upper portion 111 and the first bracket lower portion 112 respectively;

[0056] The second bracket 12 includes a second bracket upper portion 121 and a second bracket lower portion 142. The second bracket upper portion 121 is slidably nested in the second bracket lower portion 142. The two pressing rollers 31 are rotatably mounted on the second bracket upper portion 121 and the second bracket lower portion 142.

[0057] The tops of the first bracket upper part 111 and the second bracket upper part 121 on the same side are fixedly connected with a lifting plate 7, and a connecting plate 71 is fixedly provided on the top of the two lifting plates 7. A door frame 14 is provided on the base frame 1, and a cylinder 15 is fixed on the door frame 14. The output end of the cylinder 15 is fixedly connected to the connecting plate 71, and the connecting plate 71 is driven to rise and fall by the cylinder 15, and the connecting plate 71 drives the lifting plates 7 on both sides to rise and fall, thereby controlling the rise and fall of the first bracket upper part 111 and the second bracket upper part 121, wherein the bottom of the clamping roller 2 arranged above and the edge pressing roller 31 arranged above are located on the same plane, thereby adjusting the gap between the two clamping rollers 2 or the edge pressing rollers 31 to adapt to the stretching of polyphenylene sulfide films of different thicknesses.

[0058] The working principle of the present invention is as follows: first, the connecting plate 71 is driven to rise by the cylinder 15, and the connecting plate 71 drives the lifting plates 7 on both sides to rise, thereby controlling the upper part 111 of the first bracket and the upper part 121 of the second bracket to rise, and after separating the pressure roller 2 or the edge pressing roller 31, the nut 49 is turned, and the fixing block 42 and the engaging block 43 are disassembled, and one end of the polyphenylene sulfide film is passed through the gap between the two pressure rollers 2 and the edge pressing roller 31 and one end of the film is placed in the first groove 44. After the fixing nail 45 penetrates the film to fix its end, the engaging block 43 is engaged with the first groove 44, completing the fixation of the engaging block 43 and the fixing block 42, thereby completing the fixation of the film end on the winding roller 4, and adjusting the gap between the two pressure rollers 2 or the edge pressing rollers 31 by the cylinder 15 to adapt to different The thickness of the polyphenylene sulfide film is stretched. The distance between the static eliminator 5 and the stretched film can be controlled by the electric telescopic rod 52. The stretching equipment is started. The rotation speeds of the first motor 21 and the third motor 41 are different, so that the winding speed of the winding roller 4 is greater than the feeding speed of the pressure roller 2, so as to realize the stretching processing of the polyphenylene sulfide film. The film is sent out from between the two pressure rollers 2, and the two sides of the film pass through the corresponding pressure rollers 31. The pressure rollers 31 rotate under the drive of the drive component 6 to stretch the two sides of the film to avoid the side folding of the film during the stretching process. The static eliminator 5 uses the tip high-voltage corona discharge to neutralize the positive and negative ions generated in the film stretching process to avoid the influence of static electricity on the quality of the film after stretching. Finally, the stretched film is wound by the winding roller 4.

[0059] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A polyphenylene sulfide film anti-static stretching device, characterized in that: The base frame includes a first bracket, a second bracket, and a third bracket, each of which is two in number, arranged on the base frame from left to right. A pair of pressing rollers are rotatably provided between the two first brackets and are distributed up and down; a first motor is provided on one of the first brackets, and the first motor is fixedly connected to one of the pressing rollers; A holding assembly is provided on each opposite side of the second bracket; the holding assembly includes a pair of holding rollers, the axes of the holding rollers are aligned with the stretching direction of the polyphenylene sulfide film, connecting blocks are symmetrically fixed on both sides of the second bracket, the ends of the holding rollers are rotatably connected to the connecting blocks, and a driving assembly is provided on the second bracket, the driving assembly is connected to one of the holding rollers; A winding roller is rotatably provided between the two third brackets, a third motor is provided on one of the third brackets, and the third motor is fixedly connected to the winding roller; A static eliminator is slidably provided on one side of the third bracket close to the second bracket.

2. The anti-static stretching device for polyphenylene sulfide film according to claim 1, characterized in that: A slide groove is provided on a side of the third bracket close to the second bracket, an electric telescopic rod is fixed in the slide groove, an output end of the electric telescopic rod is fixedly connected to a sliding rod, the sliding rod is slidably connected to the slide groove, and an electrostatic eliminator is connected between the two sliding rods.

3. The anti-static stretching device for polyphenylene sulfide film according to claim 1, characterized in that: The driving assembly includes a driving wheel and a driven wheel, the driving wheel is rotatably mounted on the second bracket, the driven wheel is rotatably mounted on one of the connecting blocks and is connected to one of the pressure rollers, the driving wheel and the driven wheel are connected by a transmission belt, a second motor is fixed on the second bracket, and the second motor is fixedly connected to the driving wheel.

4. The polyphenylene sulfide film anti-static stretching device according to claim 1, characterized in that: The winding roller includes a fixed block and a clamping block. The fixed block is provided with a first groove. The clamping block is detachably connected to the fixed block through the first groove.

5. The anti-static stretching device for polyphenylene sulfide film according to claim 4, characterized in that: A plurality of fixing pins are arranged in the first groove, and a second groove corresponding to the fixing pins is formed on the engaging block.

6. The anti-static stretching device for polyphenylene sulfide film according to claim 5, characterized in that: The first groove is provided with a third groove at both ends along the axial direction of the winding roller. The two ends of the locking block are correspondingly provided with protrusions, and the protrusions are engaged with the third groove. Threaded holes are provided on the protrusions and the third groove, and a nut is rotatably provided in the threaded hole.

7. The anti-static stretching device for polyphenylene sulfide film according to any one of claims 1 to 6, characterized in that: The first bracket includes a first bracket upper portion and a first bracket lower portion, the first bracket upper portion is slidably nested in the first bracket lower portion, and the two pressing rollers are rotatably disposed on the first bracket upper portion and the first bracket lower portion respectively; The second bracket includes a second bracket upper portion and a second bracket lower portion, the second bracket upper portion is slidably nested in the second bracket lower portion, and the two pressing rollers are rotatably disposed on the second bracket upper portion and the second bracket lower portion respectively; The tops of the first bracket upper part and the second bracket upper part on the same side are fixedly connected to a lifting plate, the tops of the two lifting plates are fixedly provided with a connecting plate, the base frame is provided with a door frame, the door frame is fixed with a cylinder, and the output end of the cylinder is fixedly connected to the connecting plate.

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