Automatic positioning group in winder for plastic film

A technology of automatic positioning and plastic film, which is applied in the directions of winding strips, thin material handling, transportation and packaging, etc., and can solve problems such as positioning errors and time waste

Active Publication Date: 2017-07-11
COLINES SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] This intervention also causes a waste of time; possible positioning errors; and in any case, a possible danger for an operator who must "enter" the system without protection, since the intervention is close to the cutting blade, while operating The operator's security measures require additional time to complete all operations

Method used

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  • Automatic positioning group in winder for plastic film
  • Automatic positioning group in winder for plastic film
  • Automatic positioning group in winder for plastic film

Examples

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Embodiment Construction

[0031] In the illustrated embodiment, the possibility of operating under two different conditions is assumed for each of the automatic positioning groups shown, but alternatively and almost similarly, more than two positions are also possible.

[0032] As stated, figure 1 and figure 2 A first embodiment of an automatic positioning group produced according to the invention in a machine for winding plastic film onto rolls is shown, wherein said machine is only partially shown.

[0033] In particular, the first automatic positioning group is adapted to determine the correct position of the contact roller 40 on the film 41 wound onto the roll 42 produced on the core 43 positioned on the main shaft 44 .

[0034] Thus, the automatic positioning group according to the invention automatically positions the oscillating operating element relative to the core 43 or the membrane 41 , wherein the size of the diameter of the core or the final roll on which the membrane is wound varies.

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PUM

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Abstract

An automatic positioning group in a machine for winding plastic films onto rolls for determining the operating oscillating elements (40, 60) relative to a core (43), i.e. a film (41 ) correct position of the reel (42) and the diameter of the core or the reel is varied, wherein the operating rocking element (40, 60) is supported at the first free end of the operating rod (45) Department, the operating lever is hinged on a pin (46), which is associated with the frame (47) of the winder, and the operating oscillating element is oscillated by the associated actuator, in the automatic positioning group , the operating rod (45) is extended into an appendage (48) at a relative position relative to the end carrying the operating rocking member (40, 60), said appendage abutting against at least one pair positioned on the corresponding cam (50) (49, 49'), said cam rotates relative to the frame (47) by the actuator (52), wherein each of the abutments (49, 49') rotates relative to the rotation of the cam (50) The axis of rotation (51) is positioned on the cam with different radial dimensions. The operating rocking element can be formed by a contact roller (40) or a cutting blade (60).

Description

technical field [0001] The invention relates to an automatic positioning group in a machine for winding plastic film onto rolls. Background technique [0002] Currently, in the field of machines for winding plastic films onto rolls, especially in the so-called stretch film or expandable film market, winding to cores with a diameter of 2 inches or 3 inches is required The reels on , for general use, define the reels for "manual" use and "automatic" use, respectively. [0003] Reels for "manual" use have to be produced with shorter lengths of winding material, so to achieve high production rates, reel change cycles must be short. For example, to produce a 150ml roll at 600m / min, 4 changes per minute are required, so one change every 15 seconds. [0004] This does not allow the desired high rate of in-line production of reels of significantly reduced diameter and weight. [0005] Furthermore, the necessity to produce very thin films (meaning films from 6 μm to 12 μm) has led...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H18/26B65H19/20
CPCB65H19/20B65H18/26B65H2511/14B65H2220/04B65H2403/51
Inventor E·佩塞蒂
Owner COLINES SPA
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