Compress the trailer coupling of film
Technical field
The present invention relates to a kind of trailer coupling, specifically be applied to the raw material traction of film material when compressing.
Background technology
For some film materials; composite film material for example; in the course of processing, can relate to the operation that the mode that compresses by physics is compound with different stratiform raw materials or fit together; and to finish such operation; must be with different materials conveyance such as raw material film to corresponding station; its carrying method mostly adopts the mode of hand fed to finish in the prior art; and compress the planarization of compound tense to raw material owing to considering; the all requirements to some extent of the aspects such as control of continuity rate of feeding, so the form of hand fed is easy to cause and compresses or the decline of laminated film final mass even cause the fault of shutting down midway.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of trailer coupling that compresses film; adopting this mechanism is that film carries out feeding when compressing; the follow-up fluency that compresses operation be can effectively improve, the product planeness defective that causes owing to the feeding reason and the fault of shutdown avoided.
Its technical matters to be solved can be implemented by the following technical programs.
A kind of trailer coupling that compresses film, comprise corresponding left side pedestal and right side pedestal, be embedded first sliding shoe that can slide on the pedestal of described left side along vertical position, be embedded a second sliding shoe that can slide along vertical position on the pedestal of described right side, described first sliding shoe is corresponding with the second sliding shoe; Also comprise encapsulate wheel, the two ends rotating shaft of described encapsulate wheel is articulated in respectively on described first sliding shoe and the second sliding shoe, and the rotating shaft of described encapsulate wheel also is connected with a drive motor; Described first sliding shoe is or/and the second sliding shoe is connected with the driving cylinder of a vertical position.
As the further improvement of the technical program, described first sliding shoe and described left side pedestal are free-running fit.
Also as the further improvement of the technical program, described the second sliding shoe and described right side pedestal are free-running fit.
Adopt the trailer coupling that compresses film of technique scheme, by drive cylinder controlling packet rubber tire on get off to adjust the thrust size of wheel and film, and then can adjust the size of tractive force and the opportunity of traction flexibly.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention being done one describes in detail.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
---pedestal 12---sliding shoe among the figure: 11,21
13,23---cylinder 3---encapsulate wheel
The specific embodiment
Compress the trailer coupling of film as depicted in figs. 1 and 2, be respectively arranged with pedestal 11 and 12 in the left and right sides, be respectively arranged with the sliding shoe 12 that can vertically slide on the pedestal 11 and 12, the upper end of the sliding shoe of both sides is connected with respectively and drives cylinder 13 and 23.The two ends rotating shaft of encapsulate wheel 3 is articulated on the sliding shoe of both sides.
When film product reaches encapsulate when taking turns 3 belows, cylinder promotes sliding shoe, be sliding join (free-running fit) between each sliding shoe and the pedestal, encapsulate wheel 3 is contained on the sliding shoe, both connect by bearing, and when encapsulate wheel 3 was pressed on the film, encapsulate wheel 3 was rotated by driven by motor, because the effect of friction force, film is being pulled forward.When being drawn to certain-length, cutting knife can cut off material, and cylinder 13 and 23 lifts, and encapsulate wheel 3 rises.Wherein can be only cylinder be set on therein the sliding shoe.
When needs temporarily stop to draw, can rise by control cylinder.Equally also can be according to different film materials, the stroke flexible by control cylinder comes controlling packet rubber tire and the direct thrust size of material.