DE9002551U1 - Veneer feeding device - Google Patents

Description

Reference:
Applicant:

C. KELLER GMBH U-CO.KG

Carl-Keller-Str. 2-10

PO Box 34

4530 Ibbenbueren 2

This file.

Designation:

1 Ö02 589

C1102

Veneer strip feeder

Description

The innovation relates to a feed device for veneer strips, with a conveyor consisting of several driven, rotating belt drives arranged next to one another as well as several hold-down elements arranged above the conveyor and at a lateral distance from one another.

The innovation is based on the task of creating a simple and robust, constructed feed device for transversely fed veneer strips, which is hardly susceptible to failure, ensures good guidance even of already aligned veneer pieces and eliminates the risk of blockages.

According to the innovation, this is solved by a device in accordance with the protection claim.

The drawing shows an example of the innovation and is explained in more detail below. It shows:

Fig. 1 is a side view of a veneer according to the innovation.

- 2 - (C 11o2)

Feeding device and Fig.2 a top view of the same device.

A veneer feeding device according to the invention serves to feed in, in particular aligned, veneer pieces/veneer strips 1 and feed them to a downstream veneer processing machine, e.g. veneer shears, veneer cutting machine with circular knife(s), etc.

A conveyor 2 is mounted in a frame (not shown) which transports the veneer strips 1 in the direction A. This conveyor is made up of several driven conveyor belts 2a running parallel to one another. These conveyor belts 2a have common deflection axes 2b, 2c. Preferably and advantageously they consist of wide belts (for example with a width of at least 200 mm). Their upper run can run over a support plate 2d (as a so-called underlay).

In order to ensure good/perfect veneer transport, ie to prevent unwanted veneer shifting or twisting on the conveyor 2, the conveyor belts 2a have a non-slip surface. This can be achieved by selecting the appropriate material and/or surface design, e.g. roughening, corrugation, knobs or the like.

Above the veneer conveyor level, several skid-like sliding rails 3 are provided, which run parallel to one another at a distance from one another and parallel to the transport direction A, as holding-down elements for each piece of veneer 1 to be drawn in and transported. These sliding rails 3 are preferably made of metal, in particular round steel, and are themselves designed to be torsionally rigid and flexible in height, if necessary with a cushion. The vertical mobility is symbolically shown in the drawing by the double arrow B in Fig. 1.

The skid end 3a facing the incoming veneer (piece) 1 is

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- 3 - (C 11o2)

The veneer is bent upwards by an arc or bend and, together with the veneer movement path, forms an acute-angled wedge space which facilitates the insertion of the veneer piece 1 into a gap 4 between the support plane on the conveyor belt 2a and the holding-down plane of the slide rails 3. The gap 4 is adjustable according to (i.e. depending on) the respective veneer thickness - and increases when a veneer piece of a wavy veneer thickness 1 passes through due to the flexible slide rail arrangement.

Each slide rail 3 extends above a conveyor belt 2a, in particular approximately on the conveyor belt width bisector (see Fig. 2). All slide rails 3 are held in two places. In a particularly simple design, two frame beams (traverses) 5, 6 extending above these slide rails 3 and transverse to the veneer transport direction A are provided for the arrangement of all slide rails. These frame beams 5, 6 carry guides/guide sleeves 7, which are gripped by holding and/or guide rods 3b/3c attached to the slide rails 3, which are each provided with an adjustable stop 8 above the guide sleeves 7 for adjustable slide rail lowest position limitation. A particularly simple construction is achieved if the holding and/or guide rods 3b, 3c associated with each slide rail 3 are provided with a thread at the upper end and accommodate two nuts (as an adjustment element and a counter element).

Claims (1)

> I I I I I G 90 02 551.2 C 1102 C. Keller GmbH & Co. KG "Veneer strip suction device" Claim for protection Veneer strip feeder with integrated conveyor and hold-down elements, characterized by the combination: (a) that the conveyor (2) has several wide conveyor belts (2a) running side by side with their upper run over a support plate (2d), which are formed by belts with a width of at least 200 mm and with a non-slip functional surface, (b) that the hold-down elements are formed by skid-like sliding strips (3a) in the form of round steel brackets, the skid end (3a) of which facing the incoming veneer piece (1) is bent upwards to form an inlet wedge space with the respective conveyor belt upper run, ie) that all slide rails (3) are mounted with a minimum gap (4) adjustable to the veneer thickness, as a veneer passage, approximately on the belt width bisector above the conveyor belts (2a), (d) that all slide rails (3) are suspended on two cross members (5,6) and each of them slidably encloses two rods (3b, 3c) in guide sleeves (7) arranged on the cross members (5,6) - whereby each upper rod end is I is provided with a thread and above the guide sleeve (7) s accommodates an adjusting nut (8) with an associated counter element - and § (e) that a switching device, in particular a limit switch, is arranged in the movement path of the slide rails (3) for stopping the conveyor (2) when multi-layer veneer is fed.