Clamping device for intermittently feeding films

Abstract

The invention discloses a clamping device for intermittently feeding films. The clamping device comprises a supporting base, a driving component, a fixed clamping piece and a movable clamping piece; the fixed clamping piece is fixedly arranged on the driving component; the movable clamping piece is movably arranged on the driving component; the structure of the fixed clamping piece is similar to that of the movable clamping piece; and each of the fixed clamping piece and the movable clamping piece comprises a base, a single driving cylinder, a horizontal supporting plate, an upper clamping plate, a lower clamping plate and a pair of linear bearings, the single driving cylinder is arranged along a vertical direction, the horizontal supporting plate is fixedly connected with a piston of the driving cylinder, the upper clamping plate is connected with the supporting plate through a pair of vertical guide shafts, the upper clamping plate and the supporting plate jointly form a frame structure, the lower clamping plate is positioned between the upper clamping plate and the supporting plate, and the linear bearings are respectively used for accommodating and installing the vertical guide shafts and are fixed at two ends of the lower clamping plate. By the clamping device for intermittently feeding films, the phenomenon of jamming or uneven pressure caused by double-cylinder drive can be avoided, damage of elements such as the cylinders is avoided by the linear bearings and corresponding structures, feeding accuracy and clamping stability are improved, and accordingly the films can be ensured to be accurately clamped and conveyed.

Description

technical field [0001] The invention belongs to the technical field of material conveying, and more specifically relates to a clamping device capable of intermittently feeding flexible films such as plastic films, metal films, and paper. Background technique [0002] Flexible film conveying technology is an important part of the complete production process of printing, packaging, textile, semiconductor packaging and emerging flexible electronics industries, and it is the link that connects and supports the normal operation of other processes in the entire production line. [0003] Flexible films may be paper, plastic (such as PET), leather or metal (such as aluminum foil), and may be constructed in rolls or laminated sheets. Subsequent process steps mainly perform operations such as etching, printing, embroidery, and pasting on the flexible film, and the flexible film needs to be unfolded or transported to the corresponding device or mechanism one by one. At present, there ...

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