Winding device for thin film

Abstract

The utility model discloses a film rolling device which comprises a rack and a rolling shaft arranged on the rack, and further comprises a positioning mechanism arranged on the rack, the positioning mechanism comprises a fixing cavity and a ratchet wheel fixedly connected with the rolling shaft, two ratchet wheel holding arms are hinged in the fixing cavity and symmetrically arranged on the two sides of the ratchet wheel, and the ratchet wheel holding arms are connected with the ratchet wheel. The fixed cavity is rotationally connected with a rotating shaft, and the tail part of the rotating shaft is fixedly connected with a limiting rotating plate; the rotating shaft is rotated so that the long end of the limiting rotating plate can move in the direction away from the two ratchet wheel embracing arms, and then the pawls of the ratchet wheel embracing arms can be inserted into the ratchet wheels. After the technical scheme is adopted, according to the winding device for the thin film, the ratchet wheel holding arm and the ratchet wheel are matched to play a role in limiting the winding shaft, so that the winding device can position the winding shaft after winding is completed, the situation that the winding shaft rotates to drive the thin film to loosen is avoided, the winding effect is guaranteed, and the winding efficiency is improved. And the working efficiency of winding is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of film production and processing, in particular to a film winding device. Background Art

[0002] Polypropylene film needs to be rolled up during the production process. Currently, polypropylene film is generally rolled up by the rotation of the winding roller. After the rolling is completed, the winding roller generally rotates slightly, which will cause the film on the surface of the winding roller to loosen, making its surface prone to wrinkles, affecting the rolling effect. Utility Model Content

[0003] In view of the above problems, the utility model provides a film winding device.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: a film winding device, comprising a frame, a winding shaft arranged on the frame, and a positioning mechanism arranged on the frame, the positioning mechanism comprising a fixed cavity and a ratchet fixedly connected to the winding shaft, the fixed cavity is located above the winding shaft, two ratchet arms are hinged in the fixed cavity, the two ratchet arms are symmetrically arranged on both sides of the ratchet, a rotating shaft is rotatably connected to the fixed cavity, and a limiting rotating plate is fixedly connected to the tail of the rotating shaft; the rotating shaft is rotated so that the long end of the limiting rotating plate can move away from the two ratchet arms, thereby allowing the ratchet pawl of the ratchet arm to be inserted into the ratchet.

[0005] Preferably, a knob is fixedly connected to the top of the rotating shaft.

[0006] Preferably, a support plate is fixedly connected to the portion of the rotating shaft exposed outside the fixed cavity, two insertion holes are opened on the top surface of the fixed cavity, and a plug column is movably connected between the support plate and one of the insertion holes.

[0007] Preferably, a driving motor is connected to the side of the winding shaft exposed from the frame.

[0008] Preferably, a support plate is fixedly connected to the middle of the fixed cavity, and the top ends of the two ratchet arms are respectively connected to the support plate through pivots.

[0009] Preferably, the limit rotating plate includes a plate body and long end portions symmetrically arranged on both sides of the plate body.

[0010] Preferably, an upper pressing roller and a lower pressing roller are provided on the frame, the lower pressing roller is located below the upper pressing roller, and the lower pressing roller and the upper pressing roller are located above the rear side of the winding roller.

[0011] Preferably, an upper cleaning roller and a lower cleaning roller are provided on the frame, the lower cleaning roller is located below the upper cleaning roller, and the upper cleaning roller and the lower cleaning roller are located below the rear sides of the upper pressing roller and the lower pressing roller.

[0012] From the above description of the structure of the utility model, it can be seen that compared with the prior art, the utility model has the following advantages:

[0013] The utility model provides a film winding device, wherein a positioning mechanism is installed on a frame, and the positioning mechanism is composed of a ratchet, a ratchet arm, a rotating shaft and a limit rotating plate. That is, after the winding is completed, the rotating shaft is rotated, and the rotation of the rotating shaft drives the long end portion of the limit rotating plate connected thereto to rotate in a direction away from the ratchet arm, so that the pawls of the two ratchet arms can be inserted into the ratchet, and the cooperation of the ratchet arm and the ratchet wheel plays a limiting role on the winding shaft, so that the device can position the winding shaft after the winding is completed, avoiding the winding shaft from rotating and causing the film to loosen, thereby ensuring the winding effect and improving the winding work efficiency, and solving the problem that the current polypropylene film is generally wound by the self-rotation of the winding shaft, and after the winding is completed, the winding shaft generally rotates slightly, which will cause the wound film on the surface of the winding shaft to loosen, making the surface of the winding shaft prone to wrinkles, affecting the winding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0015] Figure 1 This is a structural schematic diagram of a film winding device of the utility model;

[0016] Figure 2 It is a schematic diagram of a ratchet arm and an insertion ratchet of a film winding device of the utility model;

[0017] Figure 3 for Figure 2 Bottom view of the middle limit rotating plate;

[0018] Figure 4 It is a schematic diagram of a ratchet arm of a film winding device of the utility model being disengaged from a ratchet wheel;

[0019] Figure 5 for Figure 4 Bottom view of the middle limit rotating plate;

[0020] Figure 6 for Figure 1 Enlarged view of part A in the middle. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0022] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0025] Example

[0026] refer to Figures 1 to 6A film winding device comprises a frame 1, a winding shaft 2 arranged on the frame 1, and a positioning mechanism arranged on the frame 1, the positioning mechanism comprising a fixed cavity 32 and a ratchet 31 fixedly connected to the winding shaft 2, the fixed cavity 32 is located above the winding shaft 2, two ratchet arms 33 are hinged in the fixed cavity 32, the two ratchet arms 33 are symmetrically arranged on both sides of the ratchet 31, a rotating shaft 34 is rotatably connected to the fixed cavity 32, and a limited rotating plate 35 is fixedly connected to the tail of the rotating shaft 34; the rotating shaft 34 is rotated so that the long end 352 of the limited rotating plate 35 can move in a direction away from the two ratchet arms 33, so that the pawl of the ratchet arm 33 can be inserted into the ratchet 31. With this structure, a positioning mechanism is installed on the frame 1, and the positioning mechanism is composed of a ratchet 31, a ratchet arm 33, a rotating shaft 34 and a limiting rotating plate 35. That is, after winding is completed, by rotating the rotating shaft 34, the rotation of the rotating shaft 34 drives the long end 352 of the limiting rotating plate 35 connected thereto to rotate away from the ratchet arm 33, so that the pawls of the two ratchet arms 33 can be inserted into the ratchet 31. The cooperation between the ratchet arm 33 and the ratchet 31 plays a role in limiting the winding shaft 2, so that the device can position the winding shaft 2 after winding is completed to prevent it from rotating and causing the film to loosen, thereby ensuring the winding effect.

[0027] A knob 341 is fixedly connected to the top of the rotating shaft 34. With this structure, the arrangement of the knob 341 facilitates the rotation of the rotating shaft 34.

[0028] A support plate 41 is fixedly connected to the portion of the rotating shaft 34 exposed from the fixed cavity 32. Two insertion holes 42 are provided on the top surface of the fixed cavity 32. A plug post 43 is movably connected between the support plate 41 and one of the insertion holes 42. With this structure, the insertion holes 42 and the plug post 43 play a role in fixing the rotating shaft 34; that is, when the rotating shaft 34 needs to be rotated, the plug post 43 is pulled upward so that the bottom of the plug post 43 can be separated from the insertion hole 42, and the rotating shaft 34 can be rotated at this time; when the rotating shaft 34 rotates to the desired position, the support plate 41 connected thereto is driven to rotate, and then the plug post 43 is inserted into the corresponding insertion hole 42 to complete the position limiting of the rotating shaft 34.

[0029] The side of the winding shaft 2 exposed from the frame 1 is connected with a driving motor 5. With this structure, the output shaft of the driving motor 5 is tightly connected to the winding shaft 2, and the rotation of the output shaft of the driving motor 5 can drive the rotation of the winding shaft 2 to be able to reel the film.

[0030] A support plate 6 is fixedly connected to the middle of the fixed cavity 32, and the top ends of the two ratchet arms 33 are respectively connected to the support plate 6 through pivots. With this structure, the support plate 6 plays a role in supporting the two ratchet arms 33.

[0031] The position limiting rotating plate 35 includes a plate body 351 and long end portions 352 symmetrically arranged on both sides of the plate body 351 .

[0032] An upper pressing roller 71 and a lower pressing roller 72 are provided on the frame 1. The lower pressing roller 72 is located below the upper pressing roller 71. The lower pressing roller 72 and the upper pressing roller 71 are located above the rear side of the winding roller. With this structure, the film is passed between the upper pressing roller 71 and the lower pressing roller 72 before winding, which can prevent the film from wrinkling before winding, thereby improving the flatness of the film before winding, and facilitating the subsequent winding work.

[0033] An upper cleaning roller 81 and a lower cleaning roller 82 are provided on the frame 1, and the lower cleaning roller 82 is located below the upper cleaning roller 81. The upper cleaning roller 81 and the lower cleaning roller 82 are located below the rear side of the upper pressing roller 71 and the lower pressing roller 72. With this structure, the film is passed between the upper cleaning roller 81 and the lower cleaning roller 82 before being pressed by the pressing roller, which can ensure the effect of removing foreign matter from the upper and lower surfaces of the polypropylene film during the winding process, thereby improving the cleaning effect of the upper and lower surfaces of the polypropylene film as a whole.

[0034] Working principle:

[0035] By passing one end of the film between the upper cleaning roller 81 and the lower cleaning roller 82, and between the upper pressing roller 71 and the lower pressing roller 72, and then fixing it on the surface of the winding shaft 2, turning the knob 341, the rotation of the rotating shaft 34 is driven, and the rotation of the rotating shaft 34 drives the rotation of the limit rotating plate 35 connected thereto, so that the long end portion 352 of the limit rotating plate 35 can abut against the two ratchet arms 33, thereby driving the pawls of the ratchet arms 33 to disengage from the ratchet 31, and then starting the driving motor 5 to wind the film; after the winding is completed, The rotation of the knob 341 drives the rotation of the rotating shaft 34, and the rotation of the rotating shaft 34 drives the rotation of the limit rotating plate 35 connected thereto, so that the long end portion 352 of the limit rotating plate 35 can rotate away from the ratchet arm 33, thereby allowing the pawls of the two ratchet arms 33 to be inserted into the ratchet 31. The cooperation between the ratchet arms 33 and the ratchet 31 plays a role in limiting the winding shaft 2, so that the device can position the winding shaft 2 after winding is completed, thereby preventing it from rotating and causing the film to loosen, thereby ensuring the winding effect.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A film winding device, comprising a frame and a winding shaft arranged on the frame, characterized in that: The machine also includes a positioning mechanism arranged on the frame, the positioning mechanism includes a fixed cavity and a ratchet fixedly connected to the winding shaft, the fixed cavity is located above the winding shaft, two ratchet arms are hinged in the fixed cavity, the two ratchet arms are symmetrically arranged on both sides of the ratchet, a rotating shaft is rotatably connected to the fixed cavity, and a limited rotating plate is fixedly connected to the tail of the rotating shaft; the rotating shaft is rotated so that the long end of the limited rotating plate can move in a direction away from the two ratchet arms, thereby allowing the ratchet pawl of the ratchet arm to be inserted into the ratchet.

2. A film winding device according to claim 1, characterized in that: A knob is fixedly connected to the top of the rotating shaft.

3. A film winding device according to claim 1, characterized in that: A support plate is fixedly connected to the portion of the rotating shaft exposed from the fixed cavity. Two insertion holes are provided on the top surface of the fixed cavity. A plug column is movably connected between the support plate and one of the insertion holes.

4. A film winding device according to claim 1, characterized in that: A driving motor is connected to one side of the winding shaft that is exposed from the frame.

5. The film winding device according to claim 1, characterized in that: A support plate is fixedly connected to the middle of the fixed cavity, and the top ends of the two ratchet arms are respectively connected to the support plate through pivots.

6. A film winding device according to claim 1, characterized in that: The limit rotating plate comprises a plate body and long end portions symmetrically arranged on both sides of the plate body.

7. A film winding device according to claim 1, characterized in that: An upper pressing roller and a lower pressing roller are arranged on the frame, wherein the lower pressing roller is located below the upper pressing roller, and the lower pressing roller and the upper pressing roller are located above the rear side of the winding roller.

8. The film winding device according to claim 1, characterized in that: An upper cleaning roller and a lower cleaning roller are arranged on the frame, the lower cleaning roller is located below the upper cleaning roller, and the upper cleaning roller and the lower cleaning roller are located below the rear sides of the upper pressing roller and the lower pressing roller.

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