Automatic winding device for plastic film

Abstract

The utility model discloses an automatic plastic film winding device which comprises a working table, the top face of the working table is fixedly connected with a first fixing frame, a tensioning assembly is arranged on the top wall of the first fixing frame, a cutting assembly is arranged between the two side walls of the first fixing frame, the two side walls of the first fixing frame are fixedly connected with fixing plates, and the fixing plates are arranged on the top face of the working table. A second fixing frame is fixedly connected to the top face of the workbench, a second motor is fixedly connected to the front side face of the second fixing frame, an output shaft of the second motor is connected with a winding roller through a coupler, the end, away from the second motor, of the winding roller is rotationally connected to the rear side wall of the second fixing frame, and inserting holes are formed in the two ends of the winding roller. And a pressing assembly is arranged in the insertion hole. The tensioning assembly is arranged, so that wrinkles are prevented from being generated when the plastic film is wound, and the situation that a notch of the plastic film is uneven or inclined is avoided; the plastic film winding device is further provided with the pressing assembly, the plastic film is pressed on the winding roller, and winding is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic films, in particular to an automatic winding device for plastic films. Background Art

[0002] Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, used for packaging and as a coating layer. Plastic packaging and plastic packaging products occupy an increasingly large share in the market, especially composite plastic flexible packaging, which has been widely used in food, medicine, chemical and other fields. After the production of plastic film is completed, the plastic film needs to be rolled up.

[0003] In the prior art, for example, Chinese patent publication No. CN218261049U discloses an automatic winding device for plastic film. The utility model realizes cutting of the plastic film by means of a cutting mechanism, without manual cutting. However, when the plastic film is cut by the utility model, the plastic film is in a tensioned state, which may easily cause the plastic film to tear in the tensioned state. Utility Model Content

[0004] The utility model aims to provide an automatic plastic film winding device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: an automatic winding device for plastic film, comprising a workbench, a first fixed frame fixedly connected to the middle of the top surface of the workbench, a tensioning assembly is arranged on the top wall of the first fixed frame, a cutting assembly is arranged between the two side walls of the first fixed frame, a fixed plate is fixedly connected to the middle of the two side walls of the first fixed frame, a second fixed frame is fixedly connected to the right end of the top surface of the workbench, a second motor is fixedly connected to the front side surface of the second fixed frame, an output shaft of the second motor passes through the front side wall of the second fixed frame, the output shaft of the second motor is connected to a winding roller through a coupling, the winding roller is rotatably connected to the rear side wall of the second fixed frame at one end away from the second motor, sockets are opened at both ends of the winding roller, a clamping assembly is arranged inside the sockets, and a controller is fixedly connected to the middle of the front side surface of the first fixed frame.

[0006] Preferably, the tensioning assembly includes two first electric telescopic rods, the two first electric telescopic rods are fixedly connected to the right end of the top wall of the workbench, the bottom ends of the two first electric telescopic rods are fixedly connected to a mounting frame, the two side walls of the mounting frame are rotatably connected to tensioning rollers, the left side of the mounting frame is fixedly connected to a pressure plate, and a feed hole is opened in the middle of the pressure plate.

[0007] Preferably, the cutting assembly includes a first motor, which is fixedly connected to the front side of the first fixed frame, the output shaft of the first motor passes through the front side wall of the first fixed frame, the output shaft of the first motor is connected to a threaded rod through a coupling, the threaded rod is rotatably connected to the rear side wall of the first fixed frame at one end away from the first motor, the threaded rod is threadedly connected to a slider, the top surface of the slider is slidably connected to the top wall of the first fixed frame, the bottom surface of the slider is fixedly connected to the second electric telescopic rod, and the bottom end of the second electric telescopic rod is fixedly connected to the cutting knife.

[0008] Preferably, the clamping assembly includes an L-shaped rod and a fastening screw, the L-shaped rod is slidably connected to the socket, the top wall of the L-shaped rod is fixedly connected with a spring, the bottom end of the spring is fixedly connected with an arc-shaped sheet, the top surface of the arc-shaped sheet is fixedly connected with a sliding rod, the sliding rod is located inside the spring, the top end of the sliding rod is slidably connected to the top wall of the L-shaped rod, and the fastening screw is threadedly connected to the top and bottom ends of the L-shaped rod and one end of the winding roller.

[0009] Preferably, a third fixing frame is fixedly connected to the right end of the top surface of the workbench, and two guide rollers are rotatably connected to the inner wall of the third fixing frame. The two guide rollers are abutted against each other, and a support frame is fixedly connected to the corner of the bottom surface of the workbench.

[0010] Preferably, the controller is electrically connected to the first electric telescopic rod, the first motor, the second electric telescopic rod, and the second motor.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model is provided with a tensioning assembly, and the first electric telescopic rod drives the mounting frame and the tensioning roller to move downward, so that the tensioning roller tensions the plastic film to avoid wrinkles when the plastic film is rolled up. After the rolling is completed, the controller starts the first electric telescopic rod and the second electric telescopic rod, and the first electric telescopic rod moves downward, so that the pressing plate presses the plastic film on the fixed plate, and the cutting assembly cuts the plastic film to avoid uneven or skewed cuts of the plastic film;

[0013] 2. The utility model is also provided with a pressing component, which moves the arc-shaped sheet upward to stick one end of the plastic film to the surface of the winding roller, and lowers the arc-shaped sheet. Under the action of the spring, the arc-shaped sheet presses the plastic film against the winding roller, which is convenient for winding the plastic film. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the tensioning assembly structure of the utility model;

[0016] Figure 3This is a schematic diagram of the cutting assembly structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the clamping assembly of the utility model.

[0018] In the figure: 1. workbench; 2. first fixed frame; 3. tensioning assembly; 31. first electric telescopic rod; 32. mounting frame; 33. tensioning roller; 34. pressing plate; 35. feed hole; 4. cutting assembly; 41. first motor; 42. threaded rod; 43. slider; 44. second electric telescopic rod; 45. cutting knife; 5. fixing plate; 6. second fixed frame; 7. second motor; 8. winding roller; 9. jack; 10. clamping assembly; 101. L-shaped plug rod; 102. spring; 103. arc-shaped sheet; 104. sliding rod; 105. fastening screw; 11. controller; 12. third fixed frame; 13. guide roller; 14. supporting frame. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides a technical solution: an automatic winding device for plastic film, comprising a workbench 1, a first fixing frame 2 is installed in the middle of the top surface of the workbench 1 by bolts, a tensioning assembly 3 is installed on the top wall of the first fixing frame 2, a cutting assembly 4 is installed between the two side walls of the first fixing frame 2, a fixing plate 5 is welded in the middle of the two side walls of the first fixing frame 2, a second fixing frame 6 is installed at the right end of the top surface of the workbench 1 by bolts, a second motor 7 is installed on the front side of the second fixing frame 6 by bolts, an output shaft of the second motor 7 passes through the front side wall of the second fixing frame 6, a winding roller 8 is installed on the output shaft of the second motor 7 through a coupling, an end of the winding roller 8 away from the second motor 7 is installed on the rear side wall of the second fixing frame 6 through a bearing, a socket 9 is provided at both ends of the winding roller 8, a pressing assembly 10 is installed inside the socket 9, a controller 11 is installed in the middle of the front side of the first fixing frame 2 by bolts, a third fixing frame 12 is installed at the right end of the top surface of the workbench 1 by bolts, two guide rollers 13 are installed on the inner side wall of the third fixing frame 12 by bearings, the two guide rollers 13 are abutted, and a support frame 14 is installed at the bottom corner of the workbench 1 by bolts.

[0021] The tensioning assembly 3 includes two first electric telescopic rods 31, which are mounted on the right end of the top wall of the workbench 1 by bolts, and the mounting frame 32 is mounted on the bottom ends of the two first electric telescopic rods 31 by bolts. The tensioning roller 33 is mounted on the two side walls of the mounting frame 32 through bearings, and the pressure plate 34 is welded to the left side of the mounting frame 32. The feed hole 35 is opened in the middle of the pressure plate 34.

[0022] The cutting assembly 4 includes a first motor 41, which is installed on the front side of the first fixed frame 2 by bolts, and the output shaft of the first motor 41 passes through the front side wall of the first fixed frame 2. The threaded rod 42 is installed on the output shaft of the first motor 41 through a coupling, and the end of the threaded rod 42 away from the first motor 41 is installed on the rear side wall of the first fixed frame 2 through a bearing. The slider 43 is threadedly connected to the threaded rod 42, and the top surface of the slider 43 is slidably connected to the top wall of the first fixed frame 2. The second electric telescopic rod 44 is installed on the bottom surface of the slider 43 by bolts, and the cutting knife 45 is installed at the bottom end of the second electric telescopic rod 44 by bolts, and the tip of the cutting knife 45 and the center of the feed hole 35 are located in the same plane.

[0023] The clamping assembly 10 includes an L-shaped rod 101 and a fastening screw 105. The L-shaped rod 101 is slidably connected to the socket 9. The top end of the spring 102 is welded to the top wall of the L-shaped rod 101, and the bottom end of the spring 102 is welded to the arc-shaped sheet 103. The sliding rod 104 is installed on the top surface of the arc-shaped sheet 103 by bolts. The sliding rod 104 is located inside the spring 102. The top end of the sliding rod 104 is slidably connected to the top wall of the L-shaped rod 101. The fastening screw 105 is threadedly connected to the top and bottom ends of the L-shaped rod 101 and one end of the winding roller 8.

[0024] The controller 11 is electrically connected to the first electric telescopic rod 31 , the first motor 41 , the second electric telescopic rod 44 , and the second motor 7 .

[0025] Working principle: When the utility model is in use, the plastic film passes through the two guide rollers 13, the arc-shaped sheet 103 is moved upward, one end of the plastic film is attached to the surface of the winding roller 8, and the arc-shaped sheet 103 is lowered. Under the action of the spring 192, the arc-shaped sheet 103 presses the plastic film against the winding roller 8, which is convenient for the winding of the plastic film; the first electric telescopic rod 31 is started by the controller 11, and the first electric telescopic rod 31 drives the mounting frame 32 and the tensioning roller 33 to move downward, so that the tensioning roller 33 tensions the plastic film to avoid wrinkles when the plastic film is rolled up, and the second motor 7 is started by the controller 11, and the second motor 7 drives the winding roller 8 to rotate. The plastic film is thereby rolled up. After the rolling is completed, the controller 11 starts the first electric telescopic rod 31 and the second electric telescopic rod 44. The first electric telescopic rod 31 moves downward, so that the pressure plate 34 presses the plastic film onto the fixed plate 5. The second electric telescopic rod 44 drives the cutting knife 45 to move downward into the knife feed hole 35 until the tip of the cutting knife 45 contacts the fixed plate 5. Then the controller 11 starts the first motor 41. The first motor 41 drives the threaded rod 42 to rotate, so that the slider 43 drives the cutting knife 45 to cut the plastic film, thereby avoiding uneven or skewed cuts in the plastic film. The utility model has the advantages of easy use and good use effect.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic film automatic winding device, comprising a workbench (1), characterized in that: A first fixed frame (2) is fixedly connected to the middle of the top surface of the workbench (1), a tensioning assembly (3) is arranged on the top wall of the first fixed frame (2), a cutting assembly (4) is arranged between the two side walls of the first fixed frame (2), a fixed plate (5) is fixedly connected to the middle of the two side walls of the first fixed frame (2), a second fixed frame (6) is fixedly connected to the right end of the top surface of the workbench (1), a second motor (7) is fixedly connected to the front side of the second fixed frame (6), an output shaft of the second motor (7) passes through the front side wall of the second fixed frame (6), the output shaft of the second motor (7) is connected to a winding roller (8) through a coupling, the winding roller (8) is rotatably connected to the rear side wall of the second fixed frame (6) at one end away from the second motor (7), plug holes (9) are provided at both ends of the winding roller (8), a pressing assembly (10) is arranged inside the plug holes (9), and a controller (11) is fixedly connected to the middle of the front side of the first fixed frame (2).

2. The automatic plastic film winding device according to claim 1, characterized in that: The tensioning assembly (3) comprises two first electric telescopic rods (31), the two first electric telescopic rods (31) are fixedly connected to the right end of the top wall of the workbench (1), the bottom ends of the two first electric telescopic rods (31) are fixedly connected to a mounting frame (32), the two side walls of the mounting frame (32) are rotatably connected to tensioning rollers (33), the left side of the mounting frame (32) is fixedly connected to a pressing plate (34), and a feed hole (35) is provided in the middle of the pressing plate (34).

3. The automatic plastic film winding device according to claim 1, characterized in that: The cutting assembly (4) comprises a first motor (41), the first motor (41) being fixedly connected to the front side of the first fixing frame (2), the output shaft of the first motor (41) passing through the front side wall of the first fixing frame (2), the output shaft of the first motor (41) being connected to a threaded rod (42) via a coupling, the threaded rod (42) being rotatably connected to the rear side wall of the first fixing frame (2) at one end away from the first motor (41), the threaded rod (42) being threadedly connected to a slider (43), the top surface of the slider (43) being slidably connected to the top wall of the first fixing frame (2), the bottom surface of the slider (43) being fixedly connected to a second electric telescopic rod (44), and the bottom end of the second electric telescopic rod (44) being fixedly connected to a cutting knife (45).

4. The automatic plastic film winding device according to claim 1, characterized in that: The clamping assembly (10) comprises an L-shaped plug rod (101) and a fastening screw (105); the L-shaped plug rod (101) is slidably connected to the plug hole (9); the top wall of the L-shaped plug rod (101) is fixedly connected to a spring (102); the bottom end of the spring (102) is fixedly connected to an arc-shaped sheet (103); the top surface of the arc-shaped sheet (103) is fixedly connected to a sliding rod (104); the sliding rod (104) is located inside the spring (102); the top end of the sliding rod (104) is slidably connected to the top wall of the L-shaped plug rod (101); the fastening screw (105) is threadedly connected to the top and bottom ends of the L-shaped plug rod (101) and one end of the winding roller (8).

5. The automatic plastic film winding device according to claim 1, characterized in that: A third fixing frame (12) is fixedly connected to the right end of the top surface of the workbench (1), and two guide rollers (13) are rotatably connected to the inner wall of the third fixing frame (12), and the two guide rollers (13) are abutted against each other. A support frame (14) is fixedly connected to the corner of the bottom surface of the workbench (1).

6. The automatic plastic film winding device according to claim 1, characterized in that: The controller (11) is electrically connected to the first electric telescopic rod (31), the first motor (41), the second electric telescopic rod (44), and the second motor (7).

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