DE3341690A1 - Pallet or tool for producing pallets by the vacuum forming method - Google Patents

Abstract

A pallet or a tool for producing pallets by the vacuum forming method, in particular for automated production machines (robots), consists of at least two parts, an edge part and an inner part which is adapted to the workpieces to be stored in the pallet.

Description

Peter Sander and Ulrich Sander

Fischbacher Hauptstraße 137-139, 8500 Nuremberg 50 pallet or tool for the production of pallets according to the vacuum deep drawing process.

The invention relates to a pallet or a tool for manufacturing of pallets according to the vacuum deep-drawing process, especially for production machines.

ei the machining and processing of workpieces in production machines (Robots), it is necessary to offer these workpieces to the machines on pallets. The production machine is only possible if the workpieces are precisely positioned in a pallet able to pick up the parts as desired, process them and then again to discard. The accuracy and stability of the pallet is decisive for that as little scrap is generated. High demands on accuracy and Stability of the pallet have led to this, especially the edge parts of the pallet to pay increased attention. Because the stability of a pallet will essentially determined by the stability of the edge.

The invention is therefore based on the object, an alette or a Manufacture tools for the production of pallets according to the vacuum deep-drawing process, in which the edge parts are designed to be particularly stable, nevertheless a material and / or there is a cost advantage.

This object is achieved according to the invention in that the pallet or the mold consists of at least two parts, an edge part and one of the workpieces adapted inner part of the pallet. This makes it possible to use the range very much much more unstable than this is usually possible.

In a first development of the invention, the pallet consists of a Netall edge part, preferably made of an aluminum frame, in the one to pallet inner part adapted to stored workpieces can be used. The inner part of the pallet is itself made from a suitable plastic using a vacuum deep-drawing process. Thanks to the deep-drawing process, the inner part of the pallet contains the same impressions which are necessary to accommodate the workpieces to be stored. Only when passing through the complete pallet through the production machine is the inner part of the pallet in the pallet edge part made of aluminum, which makes the pallet the during this process possesses the necessary stability.

In a second development of the invention, there is the mold for production of pallets after the vacuum deep-drawing process from an undercuts and / or Plastic part with stiffeners. For pallets that are made using the vacuum deep-drawing process manufactured in one piece the stability of the lalette can only be can be supplied by a stable edge part. The shape for the edge part is therefore the most elaborate part of the form. It is related because of its elaborate construction on the undercuts and / or stiffeners also the most expensive part of the mold. For this reason, according to the invention, there is the form for the vacuum deep-drawing process manufactured pallets from an edge part and one adapted from case to case Inner mold part.

Exemplary embodiments of the invention are shown in the drawings. 1 shows a perspective view of a pallet with an edge and Bottom part and an inner part, Fig. 2 is a perspective view of a tool for the production of pallets in the vacuum deep-drawing process with an edge part and an inner part, FIG. 3a shows a section through the tool edge part along the line IIIa-IIIa of Fig. 2, Fig. 3b shows a section through the tool inner part according to the Line IIIb-IIIb of Fig. 2 and Fig. 3c, both tool parts according to Fig. 3a and Fig. 3b in the assembled state.

In Figure 1, the perspective view of a pallet 1 is shown, which consists of an edge and base part 2 and an inner part 3 of the pallet. That Edge and bottom part 2 is exactly the wet and demands in its external dimensions adapted to the production machine and is therefore made of metal, preferably aluminum or a high quality plastic. However, it is readily possible to use the part 2 also to be designed in such a way that it is a pure edge part without a bottom 21. It is advisable to set the edge dimensions of the edge part 2 according to common standard sizes, for example according to the Euro norm.

To save material and / or weight, the bottom 21 of the edge and bottom part 2 can be provided with openings 22. The openings 22 can also for Handling of the Falette 1 are used by manufacturing machines.

The @aletten-Inncntcil 3 is inserted into the edge and @odontoil 2, which is provided with embossments 31. The @ inprägungen 31 have in a known manner the shape that they must have for the workpieces to be picked up.

In addition, they have 32 simple angular bends on their edges 33, A Faletten inner part 3, seen on its own, has a sufficient one Stability. The complete Falette 1 only receives the necessary stability by that the inner part 3 is inserted into the edge and bottom part 2 or

is slightly depressed. After the pallet 1 has passed through a The automatic production machine becomes the inner part of the pallet 3 for the purpose of stacking and transport the edge and bottom part 2 again removed, since the edge and sodon part 2 only during the passage through the production machine is required.

To be manufactured in the vacuum deep-drawing process, preferably one-piece To make pallets as stable and stackable as possible must be more like this in the edge part laletten numerous undercuts, indentations and webs are embossed. The width given in FIGS. 2 and 3a, 3b, 3c is correspondingly complex Deep-drawing mold 4 for the production of such pallets. In Figure 2 there is an edge portion 5 reproduced, which contains a plurality of recesses 51 and flaps 52, creating undercuts and bars are created in the finished pallet and still an automatic demolding the deep-drawn pallet is possible. It is obvious that the manufacture such a complex edge part 5 of a tool 4 for the production of Pallets in vacuum Deep drawing process the most costly part of the Tool 4 is. In the edge part 5, the inner part 6 is used that the workpieces has correspondingly shaped recesses 61. The inner mold part 6 is opposite the Forni edge part 5 comparatively simple and inexpensive, both in his Construction as well as in relation to its position, making the east of the tool or a manufactured Falette can be reduced considerably.

In Figure 3a is a section along the line IIIa-IIIa of Figure 2 through the tool edge part 5 reproduced. I) it is through the flaps 52 in the edge part 5 possible, after the end of the deep-drawing process, an automatic demolding of the the finished pallet.

FIG. 3b shows the inner tool part 6 in section along the line IIIb-IIIb of Figure 2. Edge part 5 and inner part 6 are shown in Figure 3c Art assembled and together form the complete tool 4 for the vacuum deep-drawing process.

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Claims (4)

Claims 1. Pallet or tool for the production of pallets according to the vacuum deep-drawing process, especially for production machines (robots), characterized in that the pallet (1) or the tool (4) consists of at least two parts (2, 3; 5, 6), an edge part (2, 5) and one in the Inner part adapted to the pallet to be stored workpieces (3 6). 2. Pallet or tool according to claim 1, characterized in that that the edge part (2) of the pallet (1) consists of metal, in particular aluminum. 3. Pallet or tool according to claim 1, characterized in that that the wall part (5) of the tool (4) recesses (51) and fold away Has parts (52). 4. Pallet or tool according to Claims 1 and 3, characterized in that that the pallet produced in the vacuum deep-drawing process is formed in one piece is.