DE2919251C2 - Conveyor device for flexible litter in a molding line for spreading a grit mat in the course of the production of chipboard and the like. - Google Patents

Description

Forming line 3 assigned. The Formsiratfe 3 has a Conveyor 4 with two parallel and synchronous conveyor chains 5 and temporarily connected to them flexible litter pads 6, e.g. drag sieves. The litter pads 6 lie on a bar grating, they are protruding laterally Mitnehmerariachlägen 7 provided.

In particular from FIG. 1 it can be seen that the conveying device 4 is combined with the bar grating, that is to say, overall, aL bar grating conveyor 4 is formed. The grate bars 8 are connected to the conveyor chains 5 for this purpose. However, according to the spacing L of the driver strips 10, the bar grating has bar gaps 9. In these, driver strips IO arranged on the end faces of the litter supports 6 hold

a. These driver bars 10 are also across the width of the litter 6 as driver stops 7, as can be seen in particular from FIG.

The union of the litter pads 6 with the driver strips 10 can basically be different Manner and is particularly easy to carry out as indicated in FIGS has been

As a result, it is achieved that the scattering documents 6 in the forming line 3 have a completely smooth surface form so that the spreader 2 with its Unteräme 11 can work extremely close to the litter 6 and consequently grit mats 1 with optimal Chip orientation can be generated.

For this purpose 3 sheets of drawings

Claims (1)

Claim: Conveyor device for flexible spreading documents in a Fonnstraße for spreading grit mats in the course of the production of chipboard and the like, with a stationary spreading machine above the forming line leading to a prepress and / or Finished press is guided and its conveyor consists of two parallel and synchronous running Conveyor chains with the flexible spreading material connected to them at times, e.g. drag sieves consists, with the litter pads resting on a bar grate and on their front narrow sides Have driver bars with laterally protruding driver stops, thereby gel indicates that the conveyor device with the bar grate to a bar grate conveyor (4) is united, the grate bars (8) are connected to the conveyor chains (5), and that the bar grate after Provision ^ he distances between the driver strips (10) has gaps (9) into which the driver strips (10) can enclose so far that they do not protrude above the surface of the litter. 25th The invention relates generically to a conveying device for flexible litter documents in one Forming line for scattering grit mats in the course of the production of chipboard and the like - with stationary Integrated spreading machine above the forming line, which is led to a prepress and / or finishing press and their funding direction from two parallel and synchronously running conveyor chain with the flexible spreading documents connected to it at times. z. B. tow sieves, the litter pads rest on a bar grate and at their front Narrow sides have driver strips with laterally protruding driver stops. It goes without saying of itself that the litter materials are closely connected to one another during the spreading process and that the spreading process is carried out continuously. The grit mat produced is later divided into mat sections of a given length, with the chips from the intermediate areas being sucked away. In the known generic conveyor (DE-AS 11 91 562) the bar grate is a stationary grate. The driver stops are connected to the driver bars, which in turn are dragged over the top of the bar grids. They therefore protrude beyond the surface of the litter material. That is disadvantageous. In the case of oriented spreading of the spreading material, it is necessary that the lower edge of the spreading machine is arranged directly and with the smallest possible distance from the spreading base. If the distance is too great, the orientation is disturbed by the formation of air vortices and the like after the chips have left the spreader. Annoying chips can also get stuck on the fixed slatted frame under the bedding. As a result, the strength properties of the manufactured particle board and the like are impaired due to poor chip orientation. In the known embodiment, the distance between the spreader and the spreading support must be so high that the described driver bars can pass. That already causes considerable disruptions in the sense of the above explanations. It is true that one could think of raising and lowering the spreading machines or their spreading material outlet in the rhythm in which the driver bars pass; However, this is complex and causes considerable disorientation, at least in the area of these driver bars. The invention is based on the object of further developing a generic conveyor device in such a way that that the spreader should be oriented to avoid disorientation Chips and the like are arranged with their lower edge at the smallest possible distance above the litter can and the carrier strips of the spreading pads not over the surface of the rest of the spreading pad surface protrude and this \ bstand and the spreading process not affect. To solve this problem, the invention teaches that the conveyor with the bar grate to one Rod grate conveyor is combined, the grate bars are connected to the conveyor chains and that the rod grate according to the spacing of the driver bars has gaps in which the driver bars so far Can enclose that they do not protrude above the surface of the litter. - The driver stops are generally inoperative in a system according to the invention as long as the litter material is on the Rest on the slat conveyor. Here, the take-away takes place via the carrier bars, which are described in the Frame gaps in a form-fitting manner and consequently be taken along. The driver stops occur in the Area of the pre-press or in the area of the press in function, where the spreading material of the appropriate Conveyor chains are taken over, the driver fingers of which interact with the driver stops, while the slat conveyor is returned via a pulley or the like. Appropriate measures but are also possible in the area of the slat conveyor. The advantages achieved are to be seen in the fact that in a conveyor device according to the invention, the distance the lower edge of the spreading machine from the spreading pads through over the surface of the spreading pads protruding driver strips is no longer impaired, so that with an extremely small distance can be worked. This is what »at oriented Scattering optimal orientation of the scattered chips and, as a result, also an improvement in strength the manufactured chipboard and the like. In the following, the invention is illustrated with the aid of a drawing that shows only one exemplary embodiment explained in more detail. It shows in a schematic representation F i g. 1 shows the side view of a conveyor device according to the invention for flexible litter supports in one Forming line for spreading a grit mat in the course of the production of chipboard, F i g. 2 is a plan view of the conveyor device according to Fig.l. F i g. 3 shows, on a much larger scale than that of FIG. 1, section A from the object according to FIG. I and F i g. 4 shows a further enlarged section from the subject of FIG. 3. The conveyor device shown in the figures is for flexible litter in a molding line for Scattering a grit mat 1 in the course of the manufacture of chipboard and the like. The conveyor is a stationary arranged spreader 2 and one led to a prepress and / or finishing press