Film cutting supporting wheel set

Abstract

The utility model provides a film cutting supporting wheel set which comprises a rotating shaft, the two ends of the rotating shaft are coaxially sleeved with supporting wheels, cutters of link structures are arranged at the outer ends of the supporting wheels, and the outer end faces of the cutters are cutting edges; a middle wheel is coaxially arranged in the middle of the rotating shaft, the outer diameter of the middle wheel is the same as that of the supporting wheels, a threaded rod penetrates through the middle wheel, threaded rods with opposite rotating directions are arranged at the two ends of the threaded rod, and the threaded rods at the two ends of the threaded rod penetrate through the supporting wheels at the two ends respectively. And the distance between the cutters arranged at the two ends of the rotating shaft can be adjusted to adapt to different film cutting widths.

Description

Technical Field

[0001] The utility model belongs to the technical field of film cutting, and in particular relates to a film cutting supporting wheel set. Background Art

[0002] When the film is about to be produced and before it is wound, a cutting device is usually used to cut the edge of the film to ensure that it is neat. Commonly used cutting devices include flat cutters, single-piece disc cutters, or disc cutters used in pairs with overlapping edges. Among them, the disc cutters used in pairs use the overlapping parts of the two cutter edges to form a shearing structure, and cut the film during the rotation process. Compared with flat cutters and single-piece disc cutters, this type of cutting device can effectively prevent sticking, jamming, and breakage of the cutting line. However, the disc cutters used in pairs require one of the blades to be installed at both ends of the support roller under the film. Since the existing support roller is a fixed-shape part, the width of the film cut by this type of cutting device is a fixed value, and the cutting width cannot be adjusted according to demand. Utility Model Content

[0003] In order to solve the deficiencies of the prior art, the utility model provides a film cutting support wheel set, which can adjust the distance between the cutters arranged at both ends of the rotating shaft to adapt to different film cutting widths.

[0004] In order to achieve the purpose of this utility model, the following scheme is proposed:

[0005] A film cutting support wheel group comprises: a rotating shaft, support wheels are coaxially sleeved at both ends of the rotating shaft, cutters with link structures are arranged at the outer ends of the support wheels, and the outer end faces of the cutters are blades; an intermediate wheel is coaxially arranged in the middle of the rotating shaft, the outer diameter of the intermediate wheel is the same as the outer diameter of the support wheel, a screw rod is passed through the intermediate wheel, and threaded rods with opposite rotation directions are provided at both ends of the screw rod, and the threaded rods at both ends of the screw rod pass through the support wheels at both ends respectively.

[0006] The beneficial effect of the utility model is that the present invention can drive the support wheels at both ends to move toward the middle or both ends of the rotating shaft at the same time by rotating the screw rod, thereby adjusting the distance between the cutters to adapt to different cutting widths, and the screw rod has a self-locking function, and the position of the support wheels can be directly fixed after adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0008] Figure 1 Shown is a schematic diagram of the overall structure of the present application.

[0009] Figure 2 Shows Figure 1 A partial enlarged view of point A in the middle.

[0010] Figure 3 Shows Figure 1 A partial enlarged view of point B in the middle.

[0011] Figure 4 A schematic structural diagram of the support tube is shown.

[0012] Markings in the figure: rotating shaft-1, intermediate wheel-11, guide rod-12, supporting wheel-2, cutter-21, screw-3, rotating disk-31, supporting tube-4, bracket-41. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings, but the embodiments described in the utility model are only part of the embodiments of the utility model, rather than all the embodiments.

[0014] like Figure 1 , Figure 2 As shown, a film cutting support wheel group comprises: a rotating shaft 1, support wheels 2 are coaxially sleeved at both ends, and cutters 21 of a link structure are arranged at the outer ends of the support wheels 2, and the outer end surface of the cutter 21 is a blade; an intermediate wheel 11 is coaxially arranged in the middle of the rotating shaft 1, and the outer diameter of the intermediate wheel 11 is the same as the outer diameter of the support wheel 2, and a screw rod 3 is passed through the intermediate wheel 11, and the two ends of the screw rod 3 have threaded rods with opposite rotation directions, and the threaded rods at both ends of the screw rod 3 pass through the support wheels 2 at both ends respectively. Rotating the screw rod 3 can drive the support wheels 2 at both ends to move toward the middle or both ends of the rotating shaft 1 at the same time, so as to adjust the distance between the cutters 21 to adapt to different cutting widths, and the cutter disc used in pairs with the cutter 21 can be set on a slide rod, and the slide rod is arranged parallel to the upper part of the rotating shaft 1, so that the cutter disc is moved along the slide rod to adapt to the position of the cutter 21. At the same time, the intermediate wheel 11 is used to connect the screw 3, and is connected to the support wheel 2 through the screw 3, which can effectively prevent the support wheel 2 from rotating around the axis of the rotating shaft 1; the intermediate wheel 11 is not only used to install the screw 3 to prevent the screw 3 from moving along the axis, but also used to support the film to prevent the middle part of the film in the width direction from falling.

[0015] Preferably, Figure 1 As shown, a plurality of guide rods 12 are vertically passed through the intermediate wheel 11, and both ends of the guide rods 12 pass through the support wheels 2 at both ends respectively, thereby improving the connection stability between the support wheels 2 and the intermediate wheel 11, and further preventing the support wheels 2 from rotating around the rotating shaft 1.

[0016] Preferably, Figure 3As shown, both ends of the screw rod 3 corresponding to the intermediate wheel 11 are provided with a turntable 31, which is not only used to prevent the screw rod 3 from being displaced relative to the intermediate wheel 11 along the axial direction, but also facilitates manual operation to achieve the purpose of rotating the screw rod 3.

[0017] Preferably, Figure 1 As shown, the rotating shaft 1 is coaxially sleeved with a support tube 4 between the intermediate wheel 11 and the support wheel 2. The outer diameter of the support tube 4 is consistent with the outer diameter of the intermediate wheel 11, so as to reduce the gap between the intermediate wheel 11 and the support wheel 2 and improve the support for the film. More specifically, preferably, as Figure 4 As shown, the support tube 4 is connected to the outer wall of the rotating shaft 1 through a pair of brackets 41 arranged on the inner wall, so as to facilitate the insertion of the screw rod 3.

[0018] Preferably, Figure 1 As shown, there is a gap between the support tube 4 and the intermediate wheel 11 to facilitate the operation of the turntable 31 .

[0019] The above is only a preferred embodiment of the utility model, and does not mean that it is the only one or limit the utility model. Those skilled in the art should understand that various changes or equivalent replacements made to the utility model without departing from the scope of the utility model are within the scope of protection of the utility model.

Claims

1. A film cutting support wheel assembly, comprising: The rotating shaft (1) is characterized in that support wheels (2) are coaxially sleeved at both ends of the rotating shaft (1), and cutters (21) of a link structure are provided at the outer ends of the support wheels (2), and the outer end surface of the cutter (21) is a blade; an intermediate wheel (11) is coaxially provided in the middle of the rotating shaft (1), the outer diameter of the intermediate wheel (11) is the same as the outer diameter of the support wheel (2), a screw rod (3) is passed through the intermediate wheel (11), and the two ends of the screw rod (3) have threaded rods with opposite rotation directions, and the threaded rods at the two ends of the screw rod (3) pass through the support wheels (2) at the two ends respectively.

2. A film cutting support wheel assembly according to claim 1, characterized in that: A plurality of guide rods (12) are vertically passed through the middle wheel (11), and two ends of the guide rods (12) pass through the support wheels (2) at two ends respectively.

3. The film cutting support wheel assembly according to claim 1, characterized in that: Turntables (31) are provided at both ends of the screw rod (3) corresponding to the intermediate wheel (11).

4. A film cutting support wheel assembly according to claim 3, characterized in that: A support tube (4) is coaxially sleeved between the rotating shaft (1) and the corresponding intermediate wheel (11) and the support wheel (2), and the outer diameter of the support tube (4) is consistent with the outer diameter of the intermediate wheel (11).

5. A film cutting support wheel assembly according to claim 4, characterized in that: There is a gap between the support tube (4) and the intermediate wheel (11).

6. A film cutting support wheel assembly according to claim 4, characterized in that: The support tube (4) is connected to the outer wall of the rotating shaft (1) via a pair of brackets (41) arranged on the inner wall.

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