FI91616B - Arrangement for dividing a chip or fibre board - Google Patents

Abstract

An arrangement designed for dividing a chip or fibre board 2 which is carried or held in place on a conveyor belt 1 in order to cross-cut the board or divide it into strips 10, which arrangement comprises a member 4 to carry out the cross-cutting or dividing. The invention has been worked out so that the member 4 which does the cross-cutting or dividing is a vibrating element which has been placed above the conveyor belt 1, near the belt or effectively attached to it, and in which element there is a pointed tip 6, in the chipboard's advancing direction, which divides the board. <IMAGE>

Description

91616

CHIP OR NON-FIBER DISTRIBUTOR - DELNINGSANORDNING FÖR EN SPÄN- ELLER FIBERMATTA

The present invention relates to a chip or non-fibrous distributor for conveying or dividing a carpet on a conveyor belt or the like, which is carried or held in place, the device comprising means for performing the cutting or dividing.

10

For example, in the manufacture of a particle board, devices are used which cut off a uniform uncut passing through a conveyor (usually a planar belt or wire) in the transverse direction or divide it into two or more lanes in the conveying direction.

Carpet cutting is required if a synchronous press is used in the particle board process. In this case, the chip mat formed continuously on the conveyor must be cut (as the conveyor passes) into parts of the press-20 length, which are further conveyed in the so-called with an acceleration conveyor to the press or to the press filling device. When solving the mat, the work head must be traversed across a continuous cutting mat following an oblique path and speed suitable for the speed of the mat, so that the cutting mat should be cut perpendicular to the transport direction.

The division of the continuous non-cutting mat on the conveyor into strips is necessary, for example, when the width of the mat to be delivered to the press has to be reduced to a certain extent. In this case, a chip of 30 tons is separated from each edge and the desired width of the mat is continuously removed before the press. The ends dividing the chip mat must be movable to the desired workplace.

35 At present, the above tasks are generally carried out by sawing a chip mat with rotating blade discs, similar to circular sawing. Sawing is usually combined with a pneumatic suction, which is used to remove loose chips separated from the carpet during a sawing operation.

Currently known devices are relatively heavy in construction and complex with saw blades, saw motors, guards and pneumatic piping. This is detrimental because the device must be able to be moved quickly and easily. The weight of the equipment also results in heavy support structures, rails, and transfer mechanisms.

10

The result of circular sawing is not good enough. It is difficult to adequately protect the saw blade. It tends to throw the shredded chips onto the surrounding mat, ruining the surface of the final board. The sawn edge of the carpet is not smooth enough and tii-15 vis. For safety reasons, the saw blade cannot be placed very close to the surface of the conveyor belt or wire, as touching the blade may damage the above surfaces. A larger clearance worsens the sawing result. The use of pneumatic suction is uneconomical and causes emission problems.

20

The object of the invention is to provide a simple and inexpensive non-cutting distributor with which the above-mentioned disadvantages can be eliminated. The invention is characterized in that the means for performing cutting or splitting is a vibrating element placed above the conveyor belt close to or substantially attached to the belt, and having an unmounted apex dividing tip in the encounter direction.

A preferred embodiment of the invention is characterized in that the vibrating element is formed by a vibrating plate which is vertical to the plane of the surface of the mat, and substantially longitudinally of the mat.

Another preferred embodiment of the invention is characterized in that a wing forming an acute angle with the vibrating plate is connected to the tip dividing the mat of the vibrating plate, by means of which the diverging strip of the mat is plowed to the side.

«3 91616

Another preferred embodiment of the invention is characterized in that the vibration of the vibrating plate is provided by a vibrating vibrator connected to the vibrating plate with a desired frequency and amplitude, such as a compressed air vibrator, a vibrating motor or an electric vibrator.

The construction according to the invention is simple and relatively light, so that the support structures, rails and movement mechanisms of the device can also be relatively light and simple.

The invention will now be described in more detail with reference to the accompanying drawing page, in which Figure 1 schematically shows a top view of a distributor according to the invention.

Figure 2 shows a section along the line II-II in Figure 1.

Figures 20 shows a conveyor belt 1 and its overlying carpet chip 2, which extends in the direction of the arrow 3. The chip mat is divided into strips by a vibrating plate 4, which in the embodiment shown in the figures is vertical to the plane of the surface of the chip or non-fibrous mat 2 and substantially longitudinally of the mat and extends close to or substantially attached to the surface of the conveyor belt 1. The vibrating plate is vibrated at a suitable frequency and amplitude by means of a vibrator 5. The vibrator may be any known source of vibration which provides a suitable vibration force and frequency, e.g. a compressed air vibrator, a vibrating motor or an electric vibrator. In this exemplary embodiment 30, the vibratory plate unit is in place and the chip mat runs toward the vibratory plate. However, it is equally possible that the vibrating plate 4 moves as it divides the chip mat, so that the mat can be in place. When the unchipped chip encounters the vibrating, narrow tip 6 of the vibrating plate, the vibrating tip moving at a high frequency moves the chip to either side of the plate, and no pile of stopped chips can form in front of the tip 6.

4 91616 When the plate vibrates, it constantly opens an opening for the chipboard to be fed towards it. Because the amplitude of the vibratory plate is small, it does not tend to throw chips. Thus, no chips will fly over the chipper 2. The vibratory movement is directed so that it 5 tends to seal the edge 8 of the unmounted chip, whereby it becomes tight and straight. Connected to the carpet-tipping tip of the vibrating plate is a wing forming an acute angle with the vibrating plate, with which the separating band of the mat is plowed to the side. By adjusting the vane of the vibrating plate appropriately, the second lane 10 au-10 can be suitably sideways. The plowing angle can be relatively steep because the plowing blade 9 vibrates, reducing friction.

The vibrating plate 4 can be placed relatively close to the surface of the conveyor 15, as it does not cause a pressure comparable to circular sawing on the surface of the conveyor.

The vibrating plate 4 with its vibrator 5 is fixed to the frame structure 12 of the run-20 by means of flexible elements 11, e.g. suitable rubber plates, springs, etc. If necessary, behind the vibrating plate and the wing, in the carpet-free conveyor belt part, near the conveyor belt surface.

It will be apparent to those skilled in the art that the invention is not limited to the above exemplary embodiments, but may be varied within the scope of the appended claims. The most commonly discussed above is the chip mat and the conveyor belt below it. The invention may equally well be used to cut a nonwoven fabric or web on a wire.

Il

Claims (6)

A chip or non-fibrous (2) dispensing device for cutting or dividing a carpet in strips (10), which device comprises a member (4) for cutting or dividing, characterized in that the member (4) is conveyed on a conveyor belt (1) or the like. ) for cutting or splitting, there is a vibrating element placed above the conveyor belt (1) close to or substantially attached to the belt, and the element has a mat (6) dividing the mat in the direction of the non-cutting encounter. Dispensing device according to Claim 1, characterized in that the vibrating element (4) is formed by a vibrating plate which is vertical to the plane of the surface of the mat (2) and substantially longitudinal to the mat. Dispensing device according to Claim 1 or 2, characterized in that a tip (9) forming an acute angle with the vibrating plate (4) is connected to the tip (6) dividing the mat (2) of the vibrating plate (4). 10) plowed to the side. Distribution device according to one of Claims 1 to 3, characterized in that the vibration (7) of the vibrating plate (4) is provided by a vibrating vibrator (5) of the desired frequency and amplitude, such as a compressed air vibrator, a vibrating motor or an electric vibrator. 30 Dispensing device according to one of Claims 1 to 4, characterized in that the vibrating movement (7) is oriented in such a way that the vibrating plate (4) preferably seals the edge (8) of the mat (2) against the vibrating plate (4). 35 5,91616 Distribution device according to one of Claims 1 to 5, characterized in that a pneumatic suction (13) for the belt is arranged behind the vibrating plate (4) and the vane (9), in the conveyor belt part free of the mat (2), close to the surface of the conveyor belt (1). (1) to clean the surface. Il 91616