A metallized film cutting mechanism

Abstract

The invention discloses a metallized thin film slitting mechanism which comprises a slitting knife assembly and a movable positioning mechanism, wherein the movable positioning mechanism is positioned below the slitting knife assembly, and used for providing accommodating spaces for the knife heads of slitting knives in the slitting knife assembly; a thin film is conveyed between the slitting knife assembly and the movable positioning mechanism; the slitting knife assembly comprises the slitting knives, horizontal direction adjusting mechanisms and swinging mechanisms; the horizontal direction adjusting mechanisms are used for adjusting the left-right moving of the slitting knives; and the swinging mechanisms are used for adjusting the up-down swinging positions of the slitting knives. The metallized thin film slitting mechanism disclosed by the invention has the advantages that the operation is convenient; the knife heads and shafts are effectively prevented from sliding relative to each other; the thin film slitting width is flexible to adjust and diversified; and the rotary angles of the slitting knives are precise.

Description

technical field [0001] The invention relates to the technical field of metallized films, in particular to a metallized film cutting mechanism. Background technique [0002] The metallized film slitting machine is a device that cuts the metallized film processed by the vacuum coating machine according to the width requirement. It includes a feeding mechanism, a cutting mechanism, and a film rolling mechanism. The feeding mechanism is used to feed the metallized film to be cut, the slitting mechanism is used to cut the fed metallized film, and the film rolling mechanism is used to The slit metallized film is wound. [0003] At present, the existing metallized film slitting machine has the following deficiencies: [0004] (1) The cutter head positioning device in the slitting mechanism is mostly as the disclosed cutter head positioning device structure of the film slitting machine disclosed in the patent application 201420418295.X, specifically a film roll with a cutting groo...

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Problems solved by technology

[0004] (1) The cutter head positioning device in the slitting mechanism is mostly as the disclosed cutter head positioning device structure of the film slitting machine disclosed in the patent application 201420418295.X, specifically a film roll with a cutting groove. The cutter head of this structure The positioning device makes the film width after slitting only a multiple of the width of the cutting groove, and the slitting of other width films cannot be realized; in addition, the film roll is a cylindrical structure, and the film passes between the film roll and the knife head. The stability of transmission and cutting is poor

[0005] (2) During actual slitting, according to different parameters such as film thickness and hardness, it is necessary to adjust the inclination angle of the slitting knife. The traditional method of adjusting the inclination angle of the slitting knife is disclosed in the patent application 201120303631.2 film slitting machine In order to realize the adjustment of the inclination angle of the slitting knife through the indexing plate, the selection of the inclination angle of this structure depends on the number of vacuum holes in the indexing plate and the distribution angle, and the same adjustment is performed for all the slitting knives, and the flexibility of adjustment , Insufficient convenience from multiple angles

[0006] (3) The existing slitting knife is in a fixed state during slitting. During actual slitting, due to mechanical vibration and other factors, the cutter head will be offset, resulting in a decrease in cutting accuracy

When tightening, the structure fully uses the friction between the bolt and the shaft to fix the position of the cutter head, and there is a risk of loosening

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