Automatic stretching film winding device

Abstract

The utility model relates to the technical field of stretch film winding, and discloses an automatic stretch film winding device which solves the problem that in the prior art, a film transmission shaft is in running fit with the inner wall of a film transmission frame, and a film is not easy to replace after being used up. The automatic stretching film winding device comprises a workbench, supporting legs, a placement plate, a supporting plate, a second groove, a winding assembly and a cutting assembly, a stretching film is wound on the outer surface of a connecting roller, a first motor drives a threaded rod to rotate, and the threaded rod rotates to drive a connecting block to move in the axis direction of the threaded rod, so that a C-shaped plate and the connecting roller are driven to move up and down; when the nut is screwed on the outer surface of the bolt and tightly presses the outer side of the C-shaped plate, the positions, relative to the C-shaped plate, of the connecting rod and the connecting roller connected with the connecting rod are locked and fixed; and when the nut is unscrewed, the connecting roller can be conveniently taken out from the C-shaped opening side of the C-shaped plate to replace a new stretching film.

Description

Technical Field

[0001] This utility model relates to the field of stretch film winding technology, and in particular to an automatic stretch film winding device. Background Technology

[0002] Stretch film is a highly elastic plastic film made of polyethylene. An automatic stretch film wrapping device is a mechanical device used for packaging goods. Its main purpose is to wrap items or pallets with stretch film to protect products from environmental factors such as dust and moisture, and to provide stability and safety during transportation and storage.

[0003] A Chinese patent with publication number CN209956280U discloses a PVC film stretching and winding device, including a winding device, a placement device, a lead screw fixing platform, a groove, a first servo motor, a lead screw, a film transmission frame, a film transmission shaft, and a PVC film. The first servo motor drives the lead screw to rotate, and the lead screw drives the film transmission frame to slide in cooperation with the groove. The placement device includes a fixed truncated cone, which is located on one side of the lead screw fixing platform, and a rotating platform is provided on the fixed truncated cone. A second servo motor is embedded in the center of the fixed truncated cone, and the second servo motor is connected to the rotating platform. The second servo motor drives the rotating platform to rotate in cooperation with the fixed truncated cone.

[0004] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the rotational fit between the film drive shaft and the inner wall of the film drive frame makes it difficult to replace the film after use, thereby increasing downtime. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the existing technology has the disadvantage of the rotational fit between the film drive shaft and the inner wall of the film drive frame, which makes it difficult to replace the film after use. To address this, we propose an automatic stretch film winding device.

[0006] To achieve the above objectives, this application adopts the following technical solution: an automatic stretch film winding device, comprising: a worktable and a support leg fixedly connected to the bottom of the worktable, a placement plate provided above the worktable, a support plate fixedly connected to the top of the worktable, a second groove provided on one side of the support plate, a winding component provided on one side of the second groove, and a cutting component provided on one side of the support plate.

[0007] The winding assembly includes a first motor mounted on the top of a support plate, a threaded rod fixedly connected to the output end of the first motor, a connecting block threadedly connected to the outer surface of the threaded rod, a C-shaped plate fixedly connected to one side of the connecting block, connecting ports opened at the upper and lower ends of the C-shaped plate, a bolt movably passing through the connecting ports, a connecting rod fixedly connected to one end of the bolt, a connecting roller rotatably connected to one end of the connecting rod, and a nut threadedly connected to the outer surface of the bolt. One end of the threaded rod is rotatably connected to a second groove, and the other end of the threaded rod rotatably passes through the second groove.

[0008] Preferably, the cutting assembly includes a fixing plate fixedly connected to one side of the support plate, an electric push rod mounted on one side of the fixing plate, a mounting plate fixedly connected to the telescopic end of the electric push rod, and a cutting blade mounted on one side of the mounting plate.

[0009] Preferably, a first slider is fixedly connected to one side of the mounting plate, a first groove is provided on one side of the support plate, the first slider is slidably connected to the first groove, a second groove is provided on the inner wall of the second groove, and a second slider is fixedly connected to one side of the connecting block, the second slider is slidably connected to the second groove.

[0010] Preferably, a movable component is provided below the placement plate, and a third slide groove is provided on one side of the worktable. The movable component includes a slide bar slidably connected inside the third slide groove, a fixing block fixedly connected to the top of the slide bar, a power plate fixedly connected to the top of the fixing block, and a universal wheel movably connected to the bottom of the slide bar. A first groove is provided at the top of the power plate, and the placement plate is placed in the first groove.

[0011] Preferably, a second motor is installed at the bottom of the inner wall of the first groove, and a rotating shaft is fixedly connected to the output end of the second motor. The rotating shaft is fixedly connected to the placement plate, and heat dissipation holes are provided on the inner wall of the first groove.

[0012] Preferably, the top of the placement plate has a placement groove, and the bottom of the inner wall of the placement groove is fitted with an anti-slip pad.

[0013] Preferably, a first controller is installed on one side of the power plate, and a second motor is electrically connected to the first controller. A second controller is installed on one side of the support plate, and the first motor and the electric push rod are both electrically connected to the second controller.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] The main innovation of this invention lies in its simple working principle. The placement plate supports the item to be wrapped, and the stretch film is wrapped around the outer surface of the connecting roller. A first motor drives a threaded rod to rotate, which in turn moves the connecting block along the axis of the threaded rod, thereby causing the C-shaped plate and the connecting roller to move up and down. This facilitates the even wrapping of the stretch film around the outer surface of the item. When the nut is tightened on the outer surface of the bolt and presses against the outside of the C-shaped plate, the position of the connecting rod and the connecting roller relative to the C-shaped plate is locked and fixed. When the nut is loosened, it is easy to remove the connecting roller from the C-shaped opening side of the C-shaped plate to replace the new stretch film. This solves the problem in the prior art where the film drive shaft and the inner wall of the film drive frame are rotated together, making it difficult to replace the film after use. Attached Figure Description

[0016] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0017] Figure 1 This is a schematic diagram of the overall structure of the automatic stretch film winding device of this utility model;

[0018] Figure 2 This is a schematic diagram of the first slide, the second controller, and the cutting component of the automatic stretch film winding device of this utility model;

[0019] Figure 3 This is a schematic diagram of the winding assembly structure of the automatic stretch film winding device of this utility model;

[0020] Figure 4 This is a schematic diagram of the moving component and placement groove structure of the automatic stretch film winding device of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the heat dissipation holes, first controller, second motor and anti-slip pad that can be classified and stored according to this utility model.

[0022] Legend: 1. Workbench; 11. Support leg; 12. Third slide rail; 2. Moving assembly; 21. Slide bar; 22. Fixing block; 23. Power plate; 231. First groove; 2311. Heat dissipation hole; 232. First controller; 24. Caster wheel; 3. Support plate; 31. Second groove; 311. Second slide rail; 32. First slide rail; 33. Second controller; 4. Winding assembly; 41. First motor; 42. Threaded rod; 43. Connecting block; 431. Second slider; 44. C-shaped plate; 441. Connection port; 45. Bolt; 46. Connecting rod; 47. Connecting roller; 48. Nut; 5. Cutting assembly; 51. Fixing plate; 52. Electric push rod; 53. Mounting plate; 531. First slider; 54. Cutting blade; 6. Placement plate; 61. Placement groove; 611. Anti-slip pad; 7. Second motor; 71. Rotating shaft. Detailed Implementation

[0023] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0024] Reference Figure 1 As shown, this utility model provides a technical solution: an automatic stretch film winding device, including: a workbench 1 and a support leg 11 fixedly connected to the bottom of the workbench 1, a placement plate 6 is provided above the workbench 1, a support plate 3 is fixedly connected to the top of the workbench 1, a second groove 31 is provided on one side of the support plate 3, a winding component 4 is provided on one side of the second groove 31, and a cutting component 5 is provided on one side of the support plate 3.

[0025] Reference Figures 1-5As shown, in this embodiment: the winding assembly 4 includes a first motor 41 mounted on the top of the support plate 3, a threaded rod 42 fixedly connected to the output end of the first motor 41, a connecting block 43 threadedly connected to the outer surface of the threaded rod 42, a C-shaped plate 44 fixedly connected to one side of the connecting block 43, connecting ports 441 opened at the upper and lower ends of the C-shaped plate 44, a bolt 45 movably passing through the connecting port 441, a connecting rod 46 fixedly connected to one end of the bolt 45, a connecting roller 47 rotatably connected to one end of the connecting rod 46, and a nut 48 threadedly connected to the outer surface of the bolt 45. One end of the threaded rod 42 is rotatably connected to the second groove 31, and the other end of the threaded rod 42 rotatably passes through the second groove 31. The placement plate 6 is used to support the items to be wrapped. The outer surface of the connecting roller 47 is wrapped with stretch film. The first motor 41 drives the threaded rod 42 to rotate. The rotation of the threaded rod 42 drives the connecting block 43 to move along the axis of the threaded rod 42, thereby driving the C-shaped plate 44 and the connecting roller 47 to move up and down, so that the stretch film can be evenly wrapped around the outer surface of the items. When the nut 48 is tightened on the outer surface of the bolt 45 and presses the outside of the C-shaped plate 44, the position of the connecting rod 46 and the connecting roller 47 connected to it relative to the C-shaped plate 44 is locked and fixed. When the nut 48 is loosened, it is easy to remove the connecting roller 47 from the C-shaped opening side of the C-shaped plate 44 to replace the new stretch film.

[0026] The cutting assembly 5 includes a fixed plate 51 fixedly connected to one side of the support plate 3, an electric push rod 52 mounted on one side of the fixed plate 51, a mounting plate 53 fixedly connected to the telescopic end of the electric push rod 52, and a cutting blade 54 mounted on one side of the mounting plate 53. The cutting edge plane of the cutting blade 54 is parallel to the plane of the support plate 3, and its initial position is far away from the winding path of the stretch film, so it will not affect the winding of the stretch film. When the stretch film has finished winding the item, and when it is necessary to cut the film, the electric push rod 52 pushes the mounting plate 53 and the cutting blade 54 to move in a direction perpendicular to the tension direction of the stretch film, so that the cutting edge presses against and cuts the film in the tension state. After the cutting is completed, the electric push rod 52 retracts, causing the cutting blade 54 to return to its initial position.

[0027] A first slider 531 is fixedly connected to one side of the mounting plate 53, and a first groove 32 is provided on one side of the support plate 3. The first slider 531 is slidably connected to the first groove 32. A second groove 311 is provided on the inner wall of the second groove 31. A second slider 431 is fixedly connected to one side of the connecting block 43, and the second slider 431 is slidably connected to the second groove 311. When the threaded rod 42 rotates and drives the connecting block 43 to move along the axis of the threaded rod 42, the second slider 431 slides along the second groove 311, which plays a guiding role. When the electric push rod 52 extends and retracts and drives the mounting plate 53 to move, the first slider 531 slides along the first groove 32, which plays a guiding role, ensuring that the connecting roller 47 and the cutting blade 54 move along the set trajectory.

[0028] A movable component 2 is provided below the placement plate 6. A third slide groove 12 is provided on one side of the workbench 1. The movable component 2 includes a slide bar 21 slidably connected inside the third slide groove 12, a fixing block 22 fixedly connected to the top of the slide bar 21, a power plate 23 fixedly connected to the top of the fixing block 22, and a caster wheel 24 movably connected to the bottom of the slide bar 21. A first groove 231 is provided at the top of the power plate 23, and the placement plate 6 is placed in the first groove 231. The caster wheel 24 is a caster wheel with a foot brake function. The slide bar 21 is slidably connected inside the third slide groove 12, which provides a guiding basis for the power plate 23 to move in a straight line. Pushing the caster wheel 24 causes the power plate 23 to drive the placement plate 6 to slide along the third slide groove 12. The slide bar 21 slides in the third slide groove 12 to guide the placement plate 6 to move stably close to the winding component 4 for winding. After winding is completed, the caster wheel 24 is pushed again to move the placement plate 6 away from the winding component 4, making it convenient to replace the new item to be wound or to start the next round of work.

[0029] A second motor 7 is installed at the bottom of the inner wall of the first groove 231. A rotating shaft 71 is fixedly connected to the output end of the second motor 7. The rotating shaft 71 is fixedly connected to the placement plate 6. Heat dissipation holes 2311 are provided on the inner wall of the first groove 231. The second motor 7 drives the rotating shaft 71 to rotate, thereby driving the placement plate 6 and the items above it to rotate synchronously, which facilitates the uniform circumferential winding of the items. The heat dissipation holes 2311 are circular and multiple sets are provided to facilitate the dissipation of heat generated by the second motor 7 during operation and improve stability.

[0030] The top of the placement plate 6 has a placement groove 61, and an anti-slip pad 611 is installed on the bottom of the inner wall of the placement groove 61. The placement groove 61 is used to place items. The anti-slip pad 611 is preferably made of rubber and is fixed to the bottom of the inner wall of the placement groove 61 with strong adhesive. The anti-slip pad 611 can increase friction to improve the stability of placement.

[0031] A first controller 232 is installed on one side of the power plate 23, and the second motor 7 is electrically connected to the first controller 232. A second controller 33 is installed on one side of the support plate 3, and the first motor 41 and the electric push rod 52 are both electrically connected to the second controller 33. The first controller 232 is used to start or stop the second motor 7, adjust the speed of the second motor 7, and set the rotation direction and angle. The first controller 232 facilitates the control of the second motor 7. The second controller 33 is used to control the first motor 41 and the electric push rod 52 to coordinate the control of the winding height and the cutting timing.

[0032] Working principle: The item is placed on top of the placement slot 61. The anti-slip pad 611 increases friction to improve placement stability. The universal wheel 24 is pushed, causing the power plate 23 to drive the placement plate 6 to slide along the third slide groove 12. The slide bar 21 slides in the third slide groove 12 to guide the placement plate 6, ensuring that the placement plate 6 is stably close to the winding assembly 4 for winding. One end of the stretch film is pulled to the outer surface of the item. The second motor 7 drives the rotating shaft 71 to rotate, thereby driving the placement plate 6 and the item above it to rotate synchronously, facilitating uniform circumferential winding of the item. The first motor 41 drives the threaded rod 42 to rotate, and the rotation of the threaded rod 42 drives the connecting block 43 to move along the axis of the threaded rod 42, thereby driving the C-shaped plate. The connecting roller 47 and the connecting rod 44 move up and down to facilitate the even wrapping of the stretch film around the outer surface of the item. After wrapping, the connecting roller 47 is moved to the height of the cutting blade 54. The electric push rod 52 pushes the mounting plate 53 and the cutting blade 54 to move along the direction perpendicular to the tension of the stretch film, so that the blade edge presses against and cuts the film in the tension state. After cutting, the electric push rod 52 retracts and drives the cutting blade 54 to return to the initial position. When the nut 48 is tightened on the outer surface of the bolt 45 and presses against the outside of the C-shaped plate 44, the position of the connecting rod 46 and the connecting roller 47 connected to it relative to the C-shaped plate 44 is locked and fixed. When the nut 48 is loosened, it is easy to remove the connecting roller 47 from the C-shaped opening side of the C-shaped plate 44 to replace the new stretch film.

[0033] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. An automatic stretch film winding device, characterized in that, include: The workbench and the support legs fixedly connected to the bottom of the workbench, the workbench is provided with a placement plate above the workbench, the top of the workbench is fixedly connected with a support plate, a second groove is provided on one side of the support plate, a winding assembly is provided on one side of the second groove, and a cutting assembly is provided on one side of the support plate. The winding assembly includes a first motor mounted on the top of the support plate, a threaded rod fixedly connected to the output end of the first motor, a connecting block threadedly connected to the outer surface of the threaded rod, a C-shaped plate fixedly connected to one side of the connecting block, connecting ports opened at the upper and lower ends of the C-shaped plate, a bolt movably passing through the connecting ports, a connecting rod fixedly connected to one end of the bolt, a connecting roller rotatably connected to one end of the connecting rod, and a nut threadedly connected to the outer surface of the bolt. One end of the threaded rod is rotatably connected to the second groove, and the other end of the threaded rod rotatably passes through the second groove.

2. The automatic stretch film winding device according to claim 1, characterized in that: The cutting assembly includes a fixed plate fixedly connected to one side of the support plate, an electric push rod mounted on one side of the fixed plate, a mounting plate fixedly connected to the telescopic end of the electric push rod, and a cutting blade mounted on one side of the mounting plate.

3. The automatic stretch film winding device according to claim 2, characterized in that: A first slider is fixedly connected to one side of the mounting plate, a first groove is provided on one side of the support plate, the first slider is slidably connected to the first groove, a second groove is provided on the inner wall of the second groove, and a second slider is fixedly connected to one side of the connecting block, the second slider is slidably connected to the second groove.

4. The automatic stretch film winding device according to claim 3, characterized in that: A movable component is provided below the placement plate. A third slide groove is provided on one side of the workbench. The movable component includes a slide bar slidably connected inside the third slide groove, a fixing block fixedly connected to the top of the slide bar, a power plate fixedly connected to the top of the fixing block, and a caster wheel movably connected to the bottom of the slide bar. A first groove is provided at the top of the power plate, and the placement plate is placed in the first groove.

5. The automatic stretch film winding device according to claim 4, characterized in that: A second motor is installed at the bottom of the inner wall of the first groove, and a rotating shaft is fixedly connected to the output end of the second motor. The rotating shaft is fixedly connected to the placement plate, and heat dissipation holes are provided in the inner wall of the first groove.

6. The automatic stretch film winding device according to claim 5, characterized in that: The top of the placement plate has a placement groove, and the bottom of the inner wall of the placement groove is fitted with an anti-slip pad.

7. The automatic stretch film winding device according to claim 6, characterized in that: A first controller is installed on one side of the power plate, and the second motor is electrically connected to the first controller. A second controller is installed on one side of the support plate, and the first motor and the electric push rod are both electrically connected to the second controller.

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