Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Producing multilayer work or article
Patent
1997-03-10
1999-07-06
Timm, Catherine
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Producing multilayer work or article
264509, 264155, 264259, 425503, 425504, 4251261, 4251291, B29C 5116, B29C 4514
Patent
active
059194146
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a method for providing at least one insertion label on a tool of a machine, the insertion label being insertable into a mold half of a tool of a plastics processing machine, in particular an injection molding machine or deep-drawing machine, and the insertion labels being punched out of label web material by means of a punching device consisting essentially of a punching plate and a cutting tool, and being transferred by a carrier, which belongs to the punching device, to the tool of the machine and being discharged for insertion thereinto. Furthermore, the invention relates to an inserting apparatus, especially for performing the method.
EP-A-0 249 363 discloses a method and an apparatus for providing insertion labels on an injection molding machine. As described in this publication, label web material is wound from a supply reel and guided over a cutting tool of a punching press, and the coherent residual punching material is wound up by another reel. The punching plate has mounted thereon an extension arm which is pivotably supported about an axis. After the punching plate has been pressed onto the cutting tool and after the insertion labels have been punched out from the web material, the cutting tool is moved out of its punching position into a transfer position. In the transfer position the insertion label is received by a carrier provided with a suction device and is inserted into the open space between the opened mold halves of the tool of the injection molding machine and is discharged to the mold cavity. The method and the apparatus have the disadvantage that directly after the punching process the insertion label rests on or between the cutting edges of the cutting tool and that the insertion label thereby assumes a relatively undefined position in the transfer position.
This is due to the fact that the cutting blades of the cutting tool are smaller on their cutting edge than at their base, so that the insertion label will never lie flat on the cutting tool. As a consequence, the insertion label will not be sucked in the transfer position in a uniform manner by the suction means of the carrier, which will possibly lead to the formation of creases and an inaccurate positioning of the insertion label. It should here be noted that it is important to introduce the insertion labels with utmost precision into the mold cavity when plastic containers are made using insertion labels inserted into the mold cavity. This has the effect that the insertion label must be fed with positional accuracy and without creases right from the beginning.
It is therefore the object of the present invention to implement a method for providing insertion labels on a plastics processing machine, wherein the insertion labels can be supplied with utmost precision and positional accuracy and without creases to the tool portion of the machine. Another object of the present invention is to provide an inserting apparatus for such a purpose.
In the method, this object is achieved according to the invention in that after the punching process the insertion labels are held by the punching plate which is substantially movable in a direction transverse to the punching direction and formed as a carrier and are transferred to the tool of the plastics processing machine. A positionally accurate removal of the insertion labels from the cutting tool without creases is possible by using the normally large-surface and plane punching plate as a carrier, so that the insertion labels can be supplied to the tool of the injection molding machine in a correspondingly precise manner. Furthermore, this invention has the advantage that in comparison with the prior art the cutting tool can now perform further punching operations by using additional punching plates, so that the simultaneous supply of a plurality of plastics processing machines, in particular injection molding machines, would be possible.
The insertion labels can be held on the punching plate in the simplest way in that during the punching operation and th
REFERENCES:
patent: 3292209 (1966-12-01), Borkman
patent: 3324508 (1967-06-01), Dickinson
patent: 4335635 (1982-06-01), Hautemont
patent: 4824630 (1989-04-01), Mohney
patent: 4880369 (1989-11-01), Kaminski
patent: 5082439 (1992-01-01), Kaminski
patent: 5344305 (1994-09-01), McKillip
patent: 5614146 (1997-03-01), Nakamura et al.
Systec Engineering Knauer GmbH & Co. KG
Timm Catherine
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