Fixed length control system

A control system and fixed-length technology, applied to rotary printing machines, printing, printing devices, etc., can solve problems affecting normal use, pattern deformation, film elongation, etc.

Pending Publication Date: 2017-10-10
NANJING JIA XU MACHINERY MFG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a fixed-length control system to solve the technical problem that the film is elongated

Method used

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Embodiment Construction

[0031] In order to make the purpose and technical solution of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention.

[0032] Such as Figure 1-7 As shown, a fixed-length control system includes a frame 1, an unwinding device 2, a traction device 4, a swing arm type tension adjustment device 3, a drying device 7, a traction cooling mechanism and a winding device 15; the frame 1 is fixed on the base, and the frame includes two side plates arranged in parallel; the swing arm type tension adjustment device 3 includes an adjustment guide roller 32, an adjustment shaft 34, an adjustment cylinder 31, a potentiometer 36 and two adjustment pendulums Arm 33, the two ends of adjustment shaft 34 are rotated and arranged on the both sides of the frame 1, one end of two adjustment swing arms 33 is fixedly connected with adjustment shaft 34, the two ends of ad...

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PUM

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Abstract

The invention discloses a fixed length control system. The fixed length control system comprises a rack, an unreeling device, traction devices, swing arm type tension adjusting devices, a coating device, a drying device and a take-up device. When the fixed length control system is in a debugging stage, a numerical value is set for the tension of an unreeled film between a traction mechanism and a coating mechanism, electric eyes are used for detecting the state of the film which is subjected to the tension, and if a pattern does not reach a standard length value, the tension of the film segment is improved through an operation interface; if the pattern length exceeds the standard value, the tension of the film segment is reduced through the operation interface till the pattern length is adjusted to the standard value; the tension of a film between a coating mechanism and a traction cooling mechanism is adjusted in a manner of the tension adjusting of the film segment; the length of the film is shaped when the film is in the drying device; and by means of cooling of the traction cooling mechanism, the situation that the film cannot be opened after being rolled up due to chilling shrink is prevented.

Description

technical field [0001] The invention relates to a fixed-length control system. Background technique [0002] During the pattern printing process of plastic film, the film is stretched due to tension, which will cause the pattern on the film to be rewound after printing to be deformed, and the length is uncertain, which will affect the subsequent normal use. Therefore, it needs to be unwound and rewound. Roll, during unwinding and rewinding, the film is fixed-length controlled to ensure that the printed pattern returns to normal. Contents of the invention [0003] The purpose of the present invention is to provide a fixed-length control system to solve the technical problem that the film is elongated and the pattern is deformed due to tension during the pattern printing process of the current plastic film, which affects subsequent normal use. [0004] In order to solve the problems of the technologies described above, the technical solution adopted in the present invention...

Claims

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Application Information

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IPC IPC(8): B65H23/14B41F13/02B41F33/00
CPCB65H23/14B41F13/02B41F33/0036B41P2217/52B41P2213/90
Inventor 沈江海冯小金
Owner NANJING JIA XU MACHINERY MFG
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