Automatic plastic film winding device

Abstract

This utility model relates to the field of automatic plastic film winding technology, specifically disclosing an automatic plastic film winding device, including a mounting frame. A rotating shaft is rotatably connected inside the mounting frame. A horizontal plate is fixedly connected to the outer wall of the rotating shaft. Two symmetrically distributed air shafts are rotatably connected through the outer wall of the horizontal plate. Two symmetrically distributed adjustment mechanisms are provided at the upper end of the horizontal plate. Each adjustment mechanism includes a vertical plate fixedly connected to the upper end of the horizontal plate. A drive shaft is rotatably connected through the outer wall of the vertical plate. Two fixed plates are fixedly connected to the outer wall of the drive shaft. A bidirectional lead screw and limiting plate linkage mechanism is adopted. By rotating a knob, the two limiting plates move synchronously in opposite directions, forming a symmetrical clamping area. This ensures that rolls of different widths are centered and positioned, avoiding problems such as winding offset and uneven edges, thereby improving the flatness of the film winding and the finished product qualification rate.

Description

Technical Field

[0001] This utility model relates to the field of automatic plastic film winding technology, and specifically discloses an automatic plastic film winding device. Background Technology

[0002] Plastic film is an important material widely used in packaging, agriculture, industry and other fields. The winding process in its production directly affects the storage, transportation and subsequent processing quality of the film.

[0003] Existing winding devices mostly use a single air shaft structure. After a roll of film is wound up, the machine needs to be stopped to replace the roll, which reduces production efficiency and requires frequent manual intervention, making it difficult to adapt to the needs of continuous production.

[0004] In addition, existing equipment makes it inconvenient to center films of different widths when installing them, which affects the neatness of the winding. Therefore, an automatic plastic film winding device is needed to solve this problem. Utility Model Content

[0005] This utility model proposes an automatic plastic film winding device. Through the design of alternating work of dual air shafts, after winding is completed, the first motor drives the horizontal plate to rotate 180° to quickly switch the work position without stopping the machine to change the roll. It adopts a two-way lead screw and limit plate linkage mechanism. By rotating the knob, the limit plates on both sides move synchronously in opposite directions to form a symmetrical clamping area, ensuring that rolls of different widths are centered and avoiding winding deviation.

[0006] This utility model is implemented as follows: an automatic plastic film winding device includes a mounting frame, a rotating shaft rotatably connected inside the mounting frame, a horizontal plate fixedly connected to the outer wall of the rotating shaft, two symmetrically distributed air shafts rotatably connected through the outer wall of the horizontal plate, two symmetrically distributed adjustment mechanisms at the upper end of the horizontal plate, each adjustment mechanism including a vertical plate fixedly connected to the upper end of the horizontal plate, a drive shaft rotatably connected through the outer wall of the vertical plate, two fixed plates fixedly connected to the outer wall of the drive shaft, a bidirectional lead screw rotatably connected between the two fixed plates, two limiting plates threadedly connected to the outer wall of the bidirectional lead screw, and a knob fixedly connected to the left end of the bidirectional lead screw through the left fixed plate.

[0007] As a preferred embodiment of the automatic plastic film winding device of this utility model, a first motor is installed at the right end of the mounting frame, and the output end of the first motor passes through the mounting frame and is fixedly connected to the rotating shaft.

[0008] As a preferred embodiment of the automatic plastic film winding device of this utility model, the lower end of the horizontal plate is fixedly connected to two symmetrically distributed brackets, and a second motor is installed on the outer wall of each of the two brackets. The output ends of the two second motors pass through the brackets and are respectively fixedly connected to two air shafts.

[0009] As a preferred embodiment of the automatic plastic film winding device of this utility model, a rectangular rod is fixedly connected to the right end of the drive shaft, and a threaded rod is threaded through the outer wall of the rectangular rod. Two limiting holes are provided on the right end of the vertical plate.

[0010] As a preferred embodiment of the automatic plastic film winding device of this utility model, both of the limiting plates have through holes on their outer walls that are slidably connected to the drive shaft.

[0011] As a preferred embodiment of the automatic plastic film winding device of this utility model, both the first motor and the second motor are worm gear self-locking motors.

[0012] As a preferred embodiment of the automatic plastic film winding device of this utility model, a controller is installed at the right end of the mounting frame.

[0013] The beneficial effects of this utility model are:

[0014] (1) Continuous and efficient production: Through the design of alternating work of dual air shafts, after the winding is completed, the first motor drives the horizontal plate to rotate 180° to quickly switch the work station without stopping the machine to replace the roll, which significantly shortens the production interruption time and greatly improves the work efficiency, especially suitable for large-volume continuous production scenarios.

[0015] (2) Centering of the roll: A two-way lead screw and limit plate linkage mechanism is adopted. By rotating the knob, the limit plates on both sides move synchronously in opposite directions to form a symmetrical clamping area, ensuring that the rolls of different widths are centered and positioned, avoiding problems such as winding offset and uneven edges, and improving the flatness of film winding and the finished product qualification rate. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is an overall structural diagram of an automatic plastic film winding device according to the present invention.

[0018] Figure 2 This is a top view of the structure of this utility model.

[0019] Figure 3 This is a partial structural diagram of the present invention;

[0020] Figure 4 This is a right-side structural view of the present invention.

[0021] The markings in the diagram are: 1. Mounting bracket; 2. Limiting hole; 3. Motor 1; 4. Rotating shaft; 5. Horizontal plate; 6. Vertical plate; 7. Drive shaft; 8. Air shaft; 9. Fixing plate; 10. Limiting plate; 11. Two-way lead screw; 12. Rectangular rod; 13. Threaded rod; 14. Bracket; 15. Second motor. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0023] Please see Figure 1-4 An automatic plastic film winding device includes a mounting frame 1. A rotating shaft 4 is rotatably connected inside the mounting frame 1. A horizontal plate 5 is fixedly connected to the outer wall of the rotating shaft 4. Two air shafts 8 are symmetrically distributed front and back on the outer wall of the horizontal plate 5. Two adjusting mechanisms are symmetrically distributed front and back on the upper end of the horizontal plate 5. The adjusting mechanism includes a vertical plate 6 fixedly connected to the upper end of the horizontal plate 5. A drive shaft 7 is rotatably connected to the outer wall of the vertical plate 6. Two fixing plates 9 are fixedly connected to the outer wall of the drive shaft 7. A bidirectional lead screw 11 is rotatably connected between the two fixing plates 9. Two limiting plates 10 are threadedly connected to the outer wall of the bidirectional lead screw 11. A knob is fixedly connected to the left end of the bidirectional lead screw 11 through the left end fixing plate 9.

[0024] In this embodiment: one of the air shafts 8 is in the working position and is driven by the second motor 15 to rotate and wind up the film, while the other is in the standby position and unloaded. When the working position air shaft 8 finishes winding, the first motor 3 drives the rotating shaft 4 to rotate the horizontal plate 5 180°, so that the standby position air shaft 8 switches to the working position, the original working position air shaft 8 turns to the standby position and unloads the full roll. This process does not require stopping the machine and realizes continuous production.

[0025] When changing the reel, place the reel to be installed on the surface of the air shaft 8, and rotate the drive shaft 7 to rotate the limiting plate 10 downwards to both ends of the reel. By rotating the knob at the left end of the bidirectional lead screw 11, drive the two limiting plates 10 to move synchronously in opposite directions along the bidirectional lead screw 11. The threads on both sides of the bidirectional lead screw 11 are opposite, forming a symmetrical clamping area. By symmetrically adjusting the distance between the limiting plates 10, ensure that the reel is located in the middle of the air shaft 8 (at this time, the reel is in a centered state), which facilitates subsequent neat winding operations.

[0026] As a technical optimization of this utility model, a first motor 3 is installed at the right end of the mounting bracket 1, and the output end of the first motor 3 passes through the mounting bracket 1 and is fixedly connected to the rotating shaft 4.

[0027] In this embodiment: the first motor 3 can drive the rotating shaft 4 to rotate, thereby driving the two air shafts 8 to exchange positions.

[0028] As a technical optimization of this utility model, the lower end of the horizontal plate 5 is fixedly connected to two symmetrically distributed brackets 14. The outer walls of the two brackets 14 are each equipped with a second motor 15. The output ends of the two second motors 15 pass through the brackets 14 and are respectively fixedly connected to the two air shafts 8.

[0029] In this embodiment, the second motor 15 can drive the air shaft 8 connected to it to rotate.

[0030] As a technical optimization of this utility model, a rectangular rod 12 is fixedly connected to the right end of the drive shaft 7. The outer wall of the rectangular rod 12 is threaded through and threaded with a threaded rod 13. Two limiting holes 2 are provided on the right end of the vertical plate 6.

[0031] In this embodiment: after centering the scroll, rotate the drive shaft 7 to rotate the rectangular rod 12 180 degrees, and then rotate the threaded rod 13 into the limiting hole 2 of the vertical plate 6 to lock the position of the drive shaft 7 and prevent the limiting plate 10 from shifting.

[0032] As a technical optimization of this utility model, the outer walls of the two limiting plates 10 are provided with through holes that are slidably connected to the drive shaft 7.

[0033] In this embodiment, the engagement between the drive shaft 7 and the through hole can prevent the limiting plate 10 from rotating axially.

[0034] As a technical optimization of this utility model, both the first motor 3 and the second motor 15 are worm gear self-locking motors.

[0035] In this embodiment, the worm gear self-locking motor can prevent the rotating shaft 4 and the air shaft 8 from rotating to the corresponding position due to external force.

[0036] As a technical optimization of this utility model, a controller is installed on the right end of the mounting bracket 1.

[0037] In this embodiment: the controller is electrically connected to the first motor 3 and the two second motors 15, and the controller can control the operation of the first motor 3 and the two second motors 15.

[0038] The working principle and usage process of this utility model are as follows: During use, one of the air shafts 8 is in the working position and is driven by the second motor 15 to rotate and wind up the film, while the other is in the standby position and unloaded. When the working position air shaft 8 finishes winding, the first motor 3 drives the rotating shaft 4 to rotate the horizontal plate 5 180°, so that the standby position air shaft 8 switches to the working position, the original working position air shaft 8 turns to the standby position and unloads the full roll. This process does not require stopping the machine and realizes continuous production.

[0039] In the initial state, the two limiting plates 10 are on the side away from the roll. When changing the roll, place the roll to be installed on the surface of the air shaft 8, and rotate the drive shaft 7 to rotate the limiting plates 10 downward 180 degrees to both ends of the roll. By rotating the knob at the left end of the bidirectional lead screw 11, the two limiting plates 10 are driven to move synchronously in opposite directions along the bidirectional lead screw 11. The threads on both sides of the bidirectional lead screw 11 are opposite, forming a symmetrical clamping area. By symmetrically adjusting the distance between the limiting plates 10, the roll is ensured to be located in the middle of the air shaft 8 (at this time, the roll is in the centered state), which facilitates subsequent neat winding operations.

[0040] The air shaft 8 is existing technology (the working principle is: compressed air is injected into the shaft core through the air nozzle. After the gas enters the air bladder cavity, it pushes the air bladder or key bar to expand radially outward and make close contact with the inner wall of the drum).

[0041] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] However, the above are merely specific embodiments of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. An automatic plastic film winding device, comprising a mounting frame (1), characterized in that: The mounting bracket (1) is internally rotatably connected to a rotating shaft (4). A horizontal plate (5) is fixedly connected to the outer wall of the rotating shaft (4). Two air shafts (8) are symmetrically distributed front and back on the outer wall of the horizontal plate (5). Two adjustment mechanisms are symmetrically distributed front and back on the upper end of the horizontal plate (5). The adjustment mechanism includes a vertical plate (6) fixedly connected to the upper end of the horizontal plate (5). A drive shaft (7) is rotatably connected to the outer wall of the vertical plate (6). Two fixing plates (9) are fixedly connected to the outer wall of the drive shaft (7). A two-way screw (11) is rotatably connected between the two fixing plates (9). Two limit plates (10) are threadedly connected to the outer wall of the two-way screw (11). A knob is fixedly connected to the left end of the two-way screw (11) through the left end fixing plate (9).

2. The automatic plastic film winding device according to claim 1, characterized in that: The right end of the mounting bracket (1) is equipped with a first motor (3), the output end of the first motor (3) passes through the mounting bracket (1) and is fixedly connected to the rotating shaft (4).

3. The automatic plastic film winding device according to claim 1, characterized in that: The lower end of the horizontal plate (5) is fixedly connected to two symmetrically distributed brackets (14). The outer walls of the two brackets (14) are equipped with second motors (15). The output ends of the two second motors (15) pass through the brackets (14) and are fixedly connected to the two air shafts (8) respectively.

4. The automatic plastic film winding device according to claim 1, characterized in that: A rectangular rod (12) is fixedly connected to the right end of the drive shaft (7). The outer wall of the rectangular rod (12) is threaded through and threaded with a threaded rod (13). Two limiting holes (2) are opened on the right end of the vertical plate (6) and are symmetrically distributed vertically.

5. The automatic plastic film winding device according to claim 1, characterized in that: Both of the limiting plates (10) have through holes on their outer walls that are slidably connected to the drive shaft (7).

6. The automatic plastic film winding device according to claim 2, characterized in that: Both the first motor (3) and the second motor (15) are worm gear self-locking motors.

7. The automatic plastic film winding device according to claim 1, characterized in that: A controller is installed on the right end of the mounting bracket (1).

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