Air swelling shaft positioning mechanism of film machine

Abstract

The utility model discloses an air expansion shaft positioning mechanism of a film machine, which comprises a rack, a material rolling device for driving an air expansion shaft to roll a film is arranged on the rack, rotating plates which are symmetrical left and right are arranged at the shaft end of the material rolling device, material taking grooves are arranged on the rotating plates, and the rotating plates transfer the air expansion shaft positioned above the material rolling device to a front side rolling station. The winding device is characterized in that positioning plates which are symmetrically arranged left and right are further arranged at the shaft end of the winding device, the positioning plates can rotate relatively, positioning grooves are formed in the positioning plates, and the positioning grooves and the material taking grooves are matched with each other to clamp the air expansion shaft for transmission. The pneumatic shaft transmission device is reasonable in structure, stable transmission of the pneumatic shaft is achieved, shaking is avoided, the pneumatic shaft transmission device is suitable for transmission of pneumatic shafts with more shaft diameters, and universality is high.

Description

Technical Field

[0001] This utility model relates to an improved invention of a film-forming machine, and more particularly to an improved invention of an air shaft positioning mechanism for a film-forming machine. Background Technology

[0002] In the film production process, an air shaft is generally used. A paper core tube is threaded onto the air shaft, which is then inflated to secure the paper core tube. Finally, a winding device winds the plastic film onto the paper core tube on the air shaft. A search on the China Patent Network reveals patent number 202221196370.3, titled "Air Shaft Transmission Mechanism for Film Machines," which achieves the cyclic transmission of the air shaft. However, when the air shaft is transmitted from above the winding device to the front winding station by the rotating plate, it is prone to shaking due to the gap between the feed chute and the air shaft. Furthermore, the feed chute is difficult to accommodate air shafts of various diameters, resulting in poor versatility. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an air shaft positioning mechanism for a thin film machine.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: the air shaft positioning mechanism of the film machine includes a frame, on which a film winding device for driving the air shaft to wind up the film is provided. The shaft end of the film winding device is provided with a left-right symmetrical rotating plate, and the rotating plate is provided with a material picking groove. The rotating plate transmits the air shaft located above the film winding device to the front winding station. The feature is that: the shaft end of the film winding device is also provided with a left-right symmetrical positioning plate, which can be rotated relative to each other, and the positioning plate is provided with a positioning groove. The positioning groove and the material picking groove cooperate with each other to clamp the air shaft for transmission.

[0005] The positioning plates are misaligned and distributed on the outside of the rotating plate.

[0006] The positioning plate is equipped with a linkage drive structure at the end away from the positioning groove.

[0007] The positioning plate has a Z-shaped structure.

[0008] The beneficial effects of this utility model are that the improved air shaft positioning mechanism of the film-making machine has a reasonable structure. By setting a positioning plate to cooperate with the rotating plate to clamp and transmit the air shaft, stable transmission of the air shaft is achieved, avoiding vibration. It is also compatible with the transmission of air shafts of more diameters, and has strong versatility. Attached Figure Description

[0009] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0010] Figure 1The utility model discloses a structure schematic view. PREFERRED EMBODIMENT

[0011] The utility model discloses a structure, and the following further explains its relative details in combination with the drawings. In the embodiment, referring to the drawings Figure 1 The film machine's air inflation axle positioning mechanism, including frame 1, frame 1 includes left and right archway, be equipped with the material winding device 2 of drive air inflation axle 5 roll film on frame 1, and material winding device 2 includes the shaft and its material winding cylinder, and the shaft end of material winding device 2 is equipped with the rotation plate 3 of left and right symmetry, and is equipped with the material taking groove 4 on rotation plate 3, and rotation plate 3 is transferred to the front side roll station with air inflation axle 5 located above material winding device 2, and the shaft end of material winding device 2 is also equipped with the positioning plate 6 of left and right symmetry, and positioning plate 6 can be relatively rotatable, and is equipped with the positioning groove 7 on positioning plate 6, and positioning groove 7 and material taking groove 4 are mutually matched and clamp tightly air inflation axle 5 and transfer. Wherein, material taking groove 4 and positioning groove 7 are preferably arc grooves.

[0012] The utility model discloses a working principle, when air inflation axle 5 is in material taking groove 4 of rotation plate 3, and is located above material winding device 2, positioning plate 6 is rotated to positioning groove 7 and is pressed tightly air inflation axle 5, and air inflation axle 5 is clamped tightly by material taking groove 4 of rotation plate 3 and positioning groove 7 of positioning plate 6, and is transferred to the front side roll station along the periphery of material winding device 2, then rotation plate 3 rotates a circle and resets, and positioning plate 6 rotates back and resets, and the process adopts clamping transmission, so that air inflation axle 5 transmission is more stable, effectively avoids the occurrence of shaking, and can adapt to more shaft diameter size air inflation axle 5 transmission, and the universality is strong.

[0013] As a further improved embodiment, the positioning plate 6 is distributed on the outside of the rotation plate 3, which reasonably utilizes the space layout and improves the assembly effect.

[0014] As a further improved embodiment, the positioning plate 6 is provided with a connecting rod driving structure at one end away from the positioning groove 7, for driving the positioning plate 6 to rotate back and forth.

[0015] As a further improved embodiment, the positioning plate 6 has a Z-shaped structure, i.e. the pressing end of the positioning plate 6 is inwardly recessed to form an avoiding structure, avoiding mutual interference with other transmission devices.

[0016] In summary, the above is only a preferred embodiment of the utility model, and is not used to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A positioning mechanism for an air shaft of a film-making machine, comprising a frame, wherein a film winding device for driving the air shaft to wind up the film is provided on the frame, and the shaft end of the film winding device is provided with symmetrical rotating plates, the rotating plates being provided with material-taking grooves, the rotating plates transmitting the air shaft located above the film winding device to the front winding station, characterized in that: The shaft end of the coiled material device is also provided with left-right symmetrical positioning plates, which are relatively rotatably arranged and are provided with positioning grooves, which are matched with the material taking grooves to clamp and transfer the air expansion shaft.

2. The pneumatic mandrel positioning mechanism of a film machine as recited in claim 1, wherein: The positioning plates are distributed outside the rotating plate in a staggered manner.

3. The pneumatic mandrel positioning mechanism of a film machine as recited in claim 1, wherein: The end of the positioning plate away from the positioning groove is provided with a connecting rod driving structure.

4. The pneumatic mandrel positioning mechanism of a film machine of claim 1 wherein: The positioning plate is in a Z-shaped structure.

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