A pre-tensioning and automatic film take-up device

Abstract

The application discloses a pre-tightening and automatic film collecting device and relates to the field of winding film collecting, which comprises a supporting plate and a winding machine, a pre-tightening frame is installed on the top of the winding machine, a second pre-tightening roller is rotatably installed on the inner side of the pre-tightening frame, an adjusting mechanism is arranged above the supporting plate, a pre-tightening mechanism is connected to one end of the adjusting mechanism, and a cleaning mechanism is installed on one side of the top of the supporting plate. According to the application, the position of the first pre-tightening roller can be adjusted through the adjusting mechanism, so that the first pre-tightening roller can be subjected to lubrication treatment and cleaning treatment. Not only can the application avoid the situation that the surface temperature of the first pre-tightening roller is increased due to excessive friction force, and the winding film is softened, and the situation that instability or wrinkles appear in the winding and pre-tightening process is caused, but also can avoid the situation that impurities damage the winding film. In addition, the adjusting mechanism can be used for adjusting, so that the resetting of the first pre-tightening roller is accurate.

Description

Technical Field

[0001] This invention relates to the field of stretch film winding technology, specifically to a pre-tightening and automatic film winding device. Background Technology

[0002] Stretch film, also known as heat shrink film, is used for the sale and transportation of various products. Its main function is to stabilize, cover, and protect the products. It must have high puncture resistance, good shrinkage, and a certain shrinkage stress. During production, stretch film is generally extruded through an extruder, then the extrusion thickness is adjusted, and it is cut into the required width before being rolled up and packaged for use. From the extruder to the winding stage, the film needs to undergo a series of adjustments and dimensional cutting and correction. During transfer, it needs to be rolled and conveyed using several rollers, and pre-tensioning components are also required.

[0003] For example, the Chinese patent number CN207403980U, "A pre-tightening and automatic film take-up device for a wrapping machine", consists of a nut, washer, empty wrapping film roller, coil spring, wrapping film shaft, driven friction plate fixing block, driven friction plate, active friction plate, active friction plate fixing block, thrust bearing, compression spring, washer, set nut, motor, wrapping film, active friction plate shaft, coupling and key.

[0004] However, in the existing technology, during the winding process, the stretch film will come into contact with the roller used for pre-tightening. After the two are in contact for a long time, the surface temperature of the roller will rise due to friction, which will easily cause the stretch film to soften. This will reduce the frictional resistance between the roller and the stretch film, resulting in instability or wrinkles during the winding and pre-tightening process.

[0005] With prolonged use and improper use, the surface of the roller may become worn or dented, which can affect the uniform transmission of film tension. In addition, if there are impurities on the roller surface, it can also cause wear when the wrapping film comes into contact with the roller. Summary of the Invention

[0006] The purpose of this invention is to provide a pre-tensioning and automatic film winding device to solve the problem mentioned in the background art where, during the winding process, the stretch film comes into contact with the roller used for pre-tensioning. After prolonged contact, the surface temperature of the roller increases due to friction, which can easily cause the stretch film to soften. This reduces the frictional resistance between the roller and the stretch film, leading to instability or wrinkles during winding and pre-tensioning. With prolonged use and improper use, the roller surface may experience wear and dents, affecting the uniform transmission of film tension. In addition, impurities on the roller surface can also cause wear when the stretch film contacts the roller.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a pre-tightening and automatic film winding device, comprising a support plate and a winding machine, wherein a pre-tightening frame is installed on the top of the winding machine, a second pre-tightening roller is rotatably installed on the inner side of the pre-tightening frame, an adjustment mechanism is provided above the support plate, one end of the adjustment mechanism is connected to the pre-tightening mechanism, a cleaning mechanism is installed on one side of the top of the support plate, and a lubrication mechanism is installed on the other side of the top of the support plate;

[0008] The adjustment mechanism includes a base and a rotating frame. A fixed frame is fixedly installed on one side of the top of the base, and a fixed plate is fixedly installed on the other side of the top of the base. One shaft end of the rotating frame is rotatably connected to the fixed plate. An adjusting block is installed on one side of the fixed plate, and one end of the adjusting block is fixedly connected to the shaft end of the rotating frame. Push rods are fixedly connected to both ends of the rotating frame. A rotating plate is rotatably installed on one side of the fixed frame, and a connecting shaft is installed on one side of the top of the rotating plate. A limit frame is provided on one side of the fixed frame, and a limit groove is opened at the bottom of the limit frame. Two first limit rods are fixedly installed on one side of the fixed frame, and the first limit rods are located inside the limit grooves. A fixed rod is fixedly connected to the center of the top of the limit frame. A sliding rod is fixedly connected to the top of the fixed rod. A baffle is fixedly connected to the top of the sliding rod. A sleeve is slidably installed on the surface of the sliding rod. The outer wall of the sleeve is fixedly connected to the connecting shaft. A spring is installed on the surface of the sliding rod. One end of the spring is fixedly connected to the inside of the sleeve, and the other end of the spring is fixedly connected to one end of the fixed rod.

[0009] Preferably, the pre-tightening mechanism includes a side plate and a first pre-tightening roller. Both sides of the first pre-tightening roller are rotatably connected to a first mounting bracket. The bottom of the side plate is fixedly connected to the bottom of the support plate. An arc-shaped groove is opened at the top of one side of the support plate. A sliding block is slidably installed inside the arc-shaped groove. One of the first mounting brackets is fixedly connected to the sliding block, and the other first mounting bracket is fixedly connected to the top of the baffle.

[0010] Preferably, the cleaning mechanism includes a second mounting frame and a reciprocating frame. The reciprocating frame is provided with a reciprocating gear on its inner side, and tooth grooves are provided at the top and bottom of the inner wall of the reciprocating frame. Guide rods are fixedly installed on both sides of the reciprocating frame. A second limiting rod is provided on one side of the second mounting frame. Extension plates are fixedly connected to both ends of the second limiting rod. One end of the extension plate is fixedly connected to one side of the second mounting frame.

[0011] Preferably, a guide groove is provided at the bottom of the inner cavity of the second mounting frame, and a guide block is slidably installed inside the guide groove. One end of the guide block is fixedly connected to the bottom of the reciprocating frame. Guide holes are provided on both sides of the second mounting frame, and one end of the guide rod is inserted into the guide hole.

[0012] Preferably, a connecting plate is fixedly connected to one side of the reciprocating frame, a reciprocating block is fixedly connected to one end of the connecting plate, a cleaning brush is fixedly installed on the outer wall of the reciprocating frame, and the reciprocating frame is slidably installed on the surface of the second limiting rod.

[0013] Preferably, a second limiting roller is provided on one side of the second mounting frame, and a second bracket is rotatably connected to both sides of the second limiting roller, with the bottom of the second bracket being fixedly connected to the support plate.

[0014] Preferably, a take-up roller is installed on one side of the take-up machine, and a guide roller is rotatably installed on one side of the take-up roller.

[0015] Preferably, a drive motor is installed on one side of the top of the support plate, and a belt drive component is connected to the output end of the drive motor. The belt drive component is rotatably connected to the side wall of the second mounting frame, and one end of the belt drive component is fixedly connected to the end of the reciprocating gear shaft.

[0016] Preferably, two hydraulic lifting platforms are installed inside the winding machine, and the top of the hydraulic lifting platforms is connected to the bottom of the support plate.

[0017] Preferably, the lubrication mechanism includes a lubrication box, a lubrication roller is rotatably mounted inside the lubrication box, a first limiting roller is provided on one side of the lubrication roller, and a first bracket is rotatably mounted on both sides of the first limiting roller, with the bottom of the first bracket being fixedly connected to a support plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. In this invention, the position of the first pre-tightening roller can be adjusted by the adjustment mechanism, thereby allowing the first pre-tightening roller to be lubricated and cleaned. This not only avoids excessive friction that could cause the surface temperature of the first pre-tightening roller to rise, which could lead to softening of the wrapping film and ultimately instability or wrinkles during winding and pre-tightening, but also prevents impurities from damaging the wrapping film. In addition, using the adjustment mechanism not only ensures accurate resetting of the first pre-tightening roller, but also allows the first pre-tightening roller to be adjusted to an appropriate position during cleaning and lubrication, preventing damage from friction with the first and second limit rollers.

[0020] 2. In this invention, the reciprocating gear can be controlled to rotate by the drive motor and belt transmission component, so that the reciprocating frame can move stably under the limit of the guide rod, guide hole, guide block and guide groove. When the reciprocating frame moves, it will drive the cleaning brush to clean the surface of the first pre-tightening roller. With the limit of the second limit rod, it can be ensured that there will be no deviation after multiple cleaning processes.

[0021] 3. In this invention, automatic winding can be completed by winding machine and winding roller, and the position of the first pre-tightening roller can be controlled by hydraulic lifting platform, thereby adjusting the pre-tightening force. In addition, the surface of the first pre-tightening roller can be lubricated by lubrication roller and first limit roller to avoid the high temperature generated by friction from affecting the wrapping film and ensure the reliability of long-term use. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a pre-tightening and automatic film-shrinking device according to the present invention;

[0023] Figure 2 This is a partial bottom view schematic diagram of a pre-tightening and automatic film-shrinking device according to the present invention;

[0024] Figure 3 This is a schematic diagram of the lubrication mechanism in a pre-tightening and automatic film-shrinking device of the present invention;

[0025] Figure 4 This is a schematic diagram of the pre-tightening mechanism in a pre-tightening and automatic film-shrinking device of the present invention;

[0026] Figure 5 This is a schematic diagram of the adjustment mechanism in a pre-tightening and automatic film-shrinking device of the present invention;

[0027] Figure 6 This is a schematic diagram of the cleaning mechanism in a pre-tightening and automatic film-shrinking device of the present invention;

[0028] Figure 7 This is a cross-sectional view of the second mounting frame of a pre-tightening and automatic film-shrinking device according to the present invention.

[0029] In the diagram: 1. Support plate; 2. Winding machine; 21. Winding roller; 22. Guide roller; 3. Lubrication mechanism; 31. Lubrication box; 32. Lubrication roller; 33. First limiting roller; 331. First bracket; 4. Pre-tensioning mechanism; 41. Side plate; 42. Arc groove; 43. Sliding block; 44. First pre-tensioning roller; 45. First mounting frame; 5. Pre-tensioning frame; 51. Second pre-tensioning roller; 6. Adjusting mechanism; 61. Base; 611. Fixing plate; 612. Fixing frame; 62. Rotating frame; 621. Push rod; 63. Adjusting block; 64. First limiting rod; 65. Limiting frame; 6 6. Fixed rod; 661. Slide rod; 662. Baffle; 67. Sleeve; 671. Connecting shaft; 68. Rotating plate; 69. Spring; 7. Cleaning mechanism; 71. Second mounting bracket; 711. Guide groove; 712. Guide hole; 72. Reciprocating frame; 721. Tooth groove; 722. Connecting plate; 723. Guide block; 73. Guide rod; 74. Reciprocating gear; 75. Cleaning brush; 76. Reciprocating block; 77. Second limit rod; 771. Extension plate; 78. Second limit roller; 781. Second bracket; 8. Drive motor; 81. Belt drive component; 9. Hydraulic lifting platform. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0031] Reference Figure 1-5 As shown: A pre-tightening and automatic film winding device includes a support plate 1 and a winding machine 2. A pre-tightening frame 5 is installed on the top of the winding machine 2. A second pre-tightening roller 51 is rotatably installed on the inner side of the pre-tightening frame 5. An adjustment mechanism 6 is provided above the support plate 1. One end of the adjustment mechanism 6 is connected to the pre-tightening mechanism 4. A cleaning mechanism 7 is installed on one side of the top of the support plate 1, and a lubrication mechanism 3 is installed on the other side of the top of the support plate 1.

[0032] The adjusting mechanism 6 includes a base 61 and a rotating frame 62. A fixed frame 612 is fixedly installed on one side of the top of the base 61, and a fixed plate 611 is fixedly installed on the other side of the top of the base 61. One shaft end of the rotating frame 62 is rotatably connected to the fixed plate 611. An adjusting block 63 is installed on one side of the fixed plate 611, and one end of the adjusting block 63 is fixedly connected to the shaft end of the rotating frame 62. Push rods 621 are fixedly connected to both ends of the rotating frame 62. A rotating plate 68 is rotatably installed on one side of the fixed frame 612. A connecting shaft 671 is installed on one side of the top of the rotating plate 68. A limit frame 65 is provided on one side of the fixed frame 612. The bottom of the mounting frame 65 has a limiting groove. Two first limiting rods 64 are fixedly installed on one side of the fixing frame 612. The first limiting rods 64 are located inside the limiting groove. A fixing rod 66 is fixedly connected to the center of the top of the limiting frame 65. A sliding rod 661 is fixedly connected to the top of the fixing rod 66. A baffle 662 is fixedly connected to the top of the sliding rod 661. A sleeve 67 is slidably installed on the surface of the sliding rod 661. The outer wall of the sleeve 67 is fixedly connected to the connecting shaft 671. A spring 69 is installed on the surface of the sliding rod 661. One end of the spring 69 is fixedly connected to the inside of the sleeve 67, and the other end of the spring 69 is fixedly connected to one end of the fixing rod 66.

[0033] The pre-tightening mechanism 4 includes a side plate 41 and a first pre-tightening roller 44. Both sides of the first pre-tightening roller 44 are rotatably connected to a first mounting bracket 45. The bottom of the side plate 41 is fixedly connected to the bottom of the support plate 1. An arc-shaped groove 42 is opened at the top of one side of the support plate 1. A sliding block 43 is slidably installed inside the arc-shaped groove 42. One of the first mounting brackets 45 is fixedly connected to the sliding block 43, and the other first mounting bracket 45 is fixedly connected to the top of the baffle 662.

[0034] In this embodiment, firstly, the rotating frame 62 is driven to rotate by the adjusting block 63. When the rotating frame 62 rotates, the rotating plate 68 can be driven to rotate by the push rods 621 at both ends. When the rotating plate 68 rotates, the limiting frame 65 can also be moved together by the sleeve 67 and the fixing rod 66. At this time, due to the presence of the spring 69 on the surface of the slide rod 661, when the slide rod 661, sleeve 67 and limiting frame 65 rotate, they will also be affected by the elasticity of the spring 69. As a result, when the rotation reaches a certain degree, the first pre-tightening roller 44 connected at the top will tilt towards the first limiting roller 33 or the second limiting roller 78. Due to the presence of the spring 69, the first pre-tightening roller 44 can be prevented from contacting the first limiting roller 33 and the second limiting roller 78 too tightly, which would result in excessive friction during cleaning and lubrication, thereby damaging the first pre-tightening roller 44. When the first pre-tightening roller 44 needs to be reset, the adjusting block 63 is rotated in the reverse direction. During the reset process, the slide rod 661, sleeve 67, and rotating plate 68 will first rotate under the push of the push rod 621. After rotating to a certain angle, due to the elasticity of the spring 69 and the presence of the limiting frame 65 and the first limiting rod 64, the slide rod 661 is no longer affected by the push rod 621 and directly resets to its initial state. At this time, the slide rod 661 will directly handle the vertical state, thereby ensuring that the first pre-tightening roller 44 is accurately reset and avoiding affecting the pre-tightening effect. During the adjustment process, the slide rod 661 will slide relative to the sleeve 67, allowing the spring 69 to extend and retract during this process.

[0035] When the first pre-tightening roller 44 moves, the sliding block 43 on one side will slide inside the arc groove 42, thereby playing a guiding and limiting role when the first pre-tightening roller 44 is adjusted.

[0036] Finally, the position of the first pre-tightening roller 44 can be adjusted using the adjusting mechanism 6, thereby lubricating and cleaning the first pre-tightening roller 44 to prevent friction from causing the surface temperature of the first pre-tightening roller 44 to rise, which could easily lead to softening of the wrapping film, resulting in instability or wrinkles during winding and pre-tightening. During the adjustment process, the adjusting mechanism 6 can ensure that the first pre-tightening roller 44 is accurately reset, and during the cleaning and lubrication process, the first pre-tightening roller 44 can be adjusted to a proper position to avoid wear during this process. Example 2

[0037] Figure 6-7As shown, the cleaning mechanism 7 includes a second mounting frame 71 and a reciprocating frame 72. A reciprocating gear 74 is provided inside the reciprocating frame 72, and toothed grooves 721 are formed at the top and bottom of the inner wall of the reciprocating frame 72. Guide rods 73 are fixedly installed on both sides of the reciprocating frame 72. A second limiting rod 77 is provided on one side of the second mounting frame 71, and extension plates 771 are fixedly connected to both ends of the second limiting rod 77. One end of the extension plate 771 is fixedly connected to one side of the second mounting frame 71. A guide groove 711 is formed at the bottom of the inner cavity of the second mounting frame 71, and a guide block 723 is slidably installed inside the guide groove 711. One end of the guide block 723 is fixedly connected to the bottom of the reciprocating frame 72. Guide holes 712 are formed on both sides of the second mounting frame 71, and one end of the guide rod 73 is inserted into the guide hole 712. A connecting plate 722 is fixedly connected to one side of the reciprocating frame 72, and a reciprocating block 76 is fixedly connected to one end of the connecting plate 722. A cleaning brush 75 is fixedly installed on the outer wall of the reciprocating frame 72, and the reciprocating frame 72 is slidably mounted on the surface of the second limit rod 77. A second limit roller 78 is provided on one side of the second mounting frame 71, and a second bracket 781 is rotatably connected to both sides of the second limit roller 78. The bottom of the second bracket 781 is fixedly connected to the support plate 1.

[0038] In this embodiment, when there are impurities and dust on the surface of the first pre-tightening roller 44, the first pre-tightening roller 44 is controlled to overlap the surface of the second limiting roller 78. The drive motor 8 drives the belt transmission component 81 to run, which in turn drives the reciprocating gear 74 to rotate. At this time, due to the rotation of the reciprocating gear 74 and the number of teeth on the surface of the reciprocating gear 74, when the reciprocating gear 74 drives the reciprocating frame 72 to move through the tooth groove 721, the reciprocating frame 72 will move back and forth. At this time, when the reciprocating frame 72 drives the reciprocating block 76 to move back and forth using the connecting plate 722 connected on one side, the cleaning brush 75 on one side of the reciprocating block 76 will clean the surface of the pre-tightening roller regularly to prevent impurities on the surface from affecting the winding of the wrapping film.

[0039] Finally, when the reciprocating frame 72 is in motion, the guide rods 73 connected on both sides will slide inside the guide hole 712 to ensure that the reciprocating frame 72 will not deviate during movement. In addition, the guide block 723 at the bottom of the reciprocating frame 72 will also slide inside the guide groove 711, thereby further limiting the movement of the reciprocating frame 72. Furthermore, when the reciprocating block 76 moves with the reciprocating frame 72 using the connecting plate 722, it will also slide on the surface of the second limiting rod 77, thereby ensuring the stability of the reciprocating block 76 during movement and preventing damage to the first pre-tightening roller 44 due to deviation after multiple cleanings. Example 3

[0040] according to Figure 1-3As shown, a winding roller 21 is installed on one side of the winding machine 2, and a guide roller 22 is rotatably installed on the other side of the winding roller 21. A drive motor 8 is installed on the top side of the support plate 1, and a belt drive component 81 is connected to the output end of the drive motor 8. The belt drive component 81 is rotatably connected to the side wall of the second mounting frame 71, and one end of the belt drive component 81 is fixedly connected to the shaft end of the reciprocating gear 74. Two hydraulic lifting platforms 9 are installed inside the winding machine 2, and the top of the hydraulic lifting platform 9 is connected to the bottom of the support plate 1. The lubrication mechanism 3 includes a lubrication box 31, a lubrication roller 32 is rotatably installed inside the lubrication box 31, a first limiting roller 33 is provided on one side of the lubrication roller 32, and a first bracket 331 is rotatably installed on both sides of the first limiting roller 33. The bottom of the first bracket 331 is fixedly connected to the support plate 1.

[0041] In this embodiment, during the pre-tightening and winding process of the stretch film, the winding motor on the winding machine 2 can drive the winding roller 21 to rotate, thereby winding up the stretch film. During this process, the first pre-tightening roller 44 and the second pre-tightening roller 51 of the pre-tightening mechanism 4 and the pre-tightening frame 5 can pre-tighten the stretch film, thereby avoiding instability or wrinkles during winding.

[0042] The height of the support plate 1 can be controlled by the hydraulic lifting platform 9, which in turn can adjust the height of the pre-tightening mechanism 4. The pre-tightening force of the first pre-tightening roller 44 can be adjusted according to the winding situation. Therefore, during the pre-tightening process, the first pre-tightening roller 44 on the pre-tightening mechanism 4 is mainly used for pre-tightening. As a result, the friction between the first pre-tightening roller 44 and the wrapping film is relatively high. Furthermore, due to the multiple adjustments of the first pre-tightening roller 44 in the pre-tightening mechanism 4, the first pre-tightening roller 44 is prone to wear.

[0043] The usage and working principle of this device are as follows: First, during the winding process, as the stretch film is pre-tightened by the first pre-tightening roller 44 and the second pre-tightening roller 51, the winding motor on the winding machine 2 drives the winding roller 21 to rotate, thereby winding up the stretch film.

[0044] The height of the support plate 1 can be controlled by the hydraulic lifting platform 9, which in turn can adjust the height of the pre-tightening mechanism 4. Therefore, during the pre-tightening process, the first pre-tightening roller 44 on the pre-tightening mechanism 4 is mainly used for pre-tightening. As a result, the friction between the first pre-tightening roller 44 and the wrapping film is relatively high. Furthermore, due to the multiple adjustments of the first pre-tightening roller 44 of the pre-tightening mechanism 4, the first pre-tightening roller 44 is prone to wear.

[0045] At this time, the first pre-tightening roller 44 can be cleaned and lubricated using the adjusting mechanism 6. The rotating frame 62 is driven to rotate by the adjusting block 63. When the rotating frame 62 rotates, the rotating plate 68 can be driven to rotate by the push rods 621 at both ends. When the rotating plate 68 rotates, the limiting frame 65 can also be moved by the sleeve 67 and the fixed rod 66. At this time, due to the presence of the spring 69 on the surface of the slide rod 661, when the slide rod 661, sleeve 67 and limiting frame 65 rotate, they will also be affected by the elasticity of the spring 69. As a result, when the rotation reaches a certain degree, it will tilt directly, causing the first pre-tightening roller 44 connected at the top to tilt towards the first limiting roller 33 or the second limiting roller 78. Due to the presence of the spring 69, the first pre-tightening roller 44 can be prevented from contacting the first limiting roller 33 and the second limiting roller 78 too tightly, which would result in excessive friction during the cleaning and lubrication process and damage to the first pre-tightening roller 44. When the first pre-tightening roller 44 needs to be reset, the adjusting block 63 is rotated in the reverse direction. During the reset process, the slide rod 661, sleeve 67, and rotating plate 68 will first rotate under the push of the push rod 621. After rotating to a certain angle, due to the elasticity of the spring 69 and the presence of the limiting frame 65 and the first limiting rod 64, the slide rod 661 is no longer affected by the push rod 621 and directly resets to its initial state. At this time, the slide rod 661 will directly handle the vertical state, thereby ensuring that the first pre-tightening roller 44 is accurately reset and avoiding affecting the pre-tightening effect. During the adjustment process, the slide rod 661 will slide relative to the sleeve 67, allowing the spring 69 to extend and retract during this process.

[0046] The first pre-tightening roller 44 is connected to the surface of the second limiting roller 78. The drive motor 8 drives the belt drive component 81 to run, which in turn drives the reciprocating gear 74 to rotate. At this time, due to the rotation of the reciprocating gear 74 and the number of teeth on the surface of the reciprocating gear 74, the reciprocating gear 74 drives the reciprocating frame 72 to move through the tooth groove 721. The reciprocating frame 72 will move back and forth. At this time, when the reciprocating frame 72 drives the reciprocating block 76 to move back and forth through the connecting plate 722 connected to one side, the cleaning brush 75 on one side of the reciprocating block 76 will periodically clean the surface of the pre-tightening roller to prevent impurities on the surface from affecting the winding of the wrapping film.

[0047] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pre-tensioning and automatic film winding device, comprising a support plate (1) and a winding machine (2), wherein a pre-tensioning frame (5) is mounted on the top of the winding machine (2), and a second pre-tensioning roller (51) is rotatably mounted on the inner side of the pre-tensioning frame (5), characterized in that: An adjustment mechanism (6) is provided above the support plate (1). One end of the adjustment mechanism (6) is connected to a pre-tightening mechanism (4). A cleaning mechanism (7) is installed on one side of the top of the support plate (1), and a lubrication mechanism (3) is installed on the other side of the top of the support plate (1). The adjustment mechanism (6) includes a base (61) and a rotating frame (62). A fixed frame (612) is fixedly installed on one side of the top of the base (61), and a fixed plate (611) is fixedly installed on the other side of the top of the base (61). The shaft end of one side of the rotating frame (62) is rotatably connected to the fixed plate (611). An adjustment block (63) is installed on one side of the fixed plate (611). One end of the adjustment block (63) is fixedly connected to the shaft end of the rotating frame (62). Push rods (621) are fixedly connected to both ends of the rotating frame (62). A rotating plate (68) is rotatably installed on one side of the fixed frame (612). A connecting shaft (671) is installed on one side of the top of the plate (68). A limiting frame (65) is provided on one side of the fixing frame (612). A limiting groove is opened at the bottom of the limiting frame (65). Two first limiting rods (64) are fixedly installed on one side of the fixing frame (612). The first limiting rods (64) are located inside the limiting groove. A fixing rod (66) is fixedly connected to the center of the top of the limiting frame (65). A sliding rod (661) is fixedly connected to the top of the fixing rod (66). A baffle (662) is fixedly connected to the top of the sliding rod (661). A sleeve (67) is slidably installed on the surface of the sliding rod (661). The outer wall of the sleeve (67) is fixedly connected to the connecting shaft (671). A spring (69) is installed on the surface of the sliding rod (661). One end of the spring (69) is fixedly connected to the inside of the sleeve (67). The other end of the spring (69) is fixedly connected to one end of the fixing rod (66). The pre-tightening mechanism (4) includes a side plate (41) and a first pre-tightening roller (44). The first pre-tightening roller (44) is rotatably connected to both sides of a first mounting bracket (45). The bottom of the side plate (41) is fixedly connected to the bottom of the support plate (1). An arc-shaped groove (42) is opened at the top of one side of the support plate (1). A sliding block (43) is slidably installed inside the arc-shaped groove (42). One of the first mounting brackets (45) is fixedly connected to the sliding block (43), and the other first mounting bracket (45) is fixedly connected to the top of the baffle (662).

2. The pre-tightening and automatic film-shrinking device according to claim 1, characterized in that: The cleaning mechanism (7) includes a second mounting frame (71) and a reciprocating frame (72). The reciprocating frame (72) is provided with a reciprocating gear (74) on its inner side, and the top and bottom of the inner wall of the reciprocating frame (72) are provided with tooth grooves (721). Guide rods (73) are fixedly installed on both sides of the reciprocating frame (72). A second limiting rod (77) is provided on one side of the second mounting frame (71). Extension plates (771) are fixedly connected to both ends of the second limiting rod (77). One end of the extension plate (771) is fixedly connected to one side of the second mounting frame (71).

3. The pre-tightening and automatic film-shrinking device according to claim 2, characterized in that: The second mounting bracket (71) has a guide groove (711) at the bottom of its inner cavity. A guide block (723) is slidably installed inside the guide groove (711). One end of the guide block (723) is fixedly connected to the bottom of the reciprocating frame (72). Guide holes (712) are provided on both sides of the second mounting bracket (71). One end of the guide rod (73) is inserted into the guide hole (712).

4. The pre-tightening and automatic film-shrinking device according to claim 3, characterized in that: A connecting plate (722) is fixedly connected to one side of the reciprocating frame (72), and a reciprocating block (76) is fixedly connected to one end of the connecting plate (722). A cleaning brush (75) is fixedly installed on the outer wall of the reciprocating frame (72), and the reciprocating frame (72) is slidably installed on the surface of the second limiting rod (77).

5. The pre-tightening and automatic film-shrinking device according to claim 4, characterized in that: The second mounting bracket (71) is provided with a second limiting roller (78) on one side, and a second bracket (781) is rotatably connected to both sides of the second limiting roller (78). The bottom of the second bracket (781) is fixedly connected to the support plate (1).

6. The pre-tightening and automatic film-shrinking device according to claim 1, characterized in that: The winding machine (2) has a winding roller (21) installed on one side, and a guide roller (22) is rotatably installed on one side of the winding roller (21).

7. The pre-tightening and automatic film-shrinking device according to claim 2, characterized in that: A drive motor (8) is installed on one side of the top of the support plate (1). The output end of the drive motor (8) is connected to a belt drive component (81). The belt drive component (81) is rotatably connected to the side wall of the second mounting bracket (71), and one end of the belt drive component (81) is fixedly connected to the shaft end of the reciprocating gear (74).

8. The pre-tightening and automatic film-shrinking device according to claim 7, characterized in that: The winding machine (2) has two hydraulic lifting platforms (9) installed inside, and the top of the hydraulic lifting platform (9) is connected to the bottom of the support plate (1).

9. A pre-tightening and automatic film-shrinking device according to claim 7, characterized in that: The lubrication mechanism (3) includes a lubrication box (31), a lubrication roller (32) is rotatably installed inside the lubrication box (31), a first limiting roller (33) is provided on one side of the lubrication roller (32), and a first bracket (331) is rotatably installed on both sides of the first limiting roller (33). The bottom of the first bracket (331) is fixedly connected to the support plate (1).

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