DE1653241A1 - Plant for the production of press plates from glued wood chips, fibers or the like. with a multi-daylight heating press - Google Patents

Description

. KURT MEYER

PATENT ADVOCATE, ,, la

3 Hanover, the ^A · ^ö *

1653241 Bahnhofstrasse 2

"'Telephone: 21449 (private: 52U40)

Postal check account: Hannover 1038 07 Bank account ι Commerz-Bank Hannover 1 55 07

Induma Industrie Maschinen GmbH, Hamburg

Plant for producing clay press plates from glued wood chips, fibrous materials or the like. with a multi-daylight heating press

The invention relates to a system for producing press plates from glued wood chips, fibrous materials or the like, in which the material to be pressed heaped on a base in a molding line and cold gate-pressed in a pre-press to form manipulable moldings, several moldings on the documents then via a loading device into the compartments of a multi-level heating press at the same time pushed in, the documents gate closing the heating press under the moldings held in place by locking bars in the price compartments veg is withdrawn into the loading device at the same time and called back to the beginning of the forming line when empty while the compacts are transferred to an unloading device after the pressing process on the other side of the heating press.

009885/0636

The well-known ready-made molding of the moldings without documents offers compared to the previously common ready-to-use pre-processing of the bricks on the documents the advantage that the heating of the briquettes in the heating press compartments sound evenly above and below takes place because no documents have to be heated up. This significantly improves the quality of the finished product. For systems in which a multi-day heating press is required in order to achieve economical production, the application results difficulties with the final pressing, empty documents, on which the moldings are poured, pre-pressed and placed in the heating press compartments inserted and then pulled back from the press compartments before the start of the pressing process, to the beginning of the To reclaim molding line.

In a known chipboard production plant, the multi-storey Heating press a loading device arranged alternately up and down in the manner of an elevator whose subjects the documents with the pre-pressed shapes at the same time pushed over into the heating press compartments and then from the heating press compartments on the same side back into the compartments of the loading device be withdrawn. The loader is then gradually moved down and removed from the loader compartment, the conveyor device that brings the documents with the pre-pressed molds has arrived at the height that is shown,

009885/0636

Verden the documents on a horizontal plane Dispensed conveyor belt that brings the empty documents back to the beginning of the forming line.

A chipboard production plant designed in this way is, according to the, for the automatic reversing of the alternately loading device driven in upward and downward direction required gear expensive and requires for the accommodation of the blank documents for the Beginning of the Formstrafle in the horizontal plane reclaiming the transport door direction a large space requirement · The performance of such a system is severely limited by the fact that the feeder Clay documents with heaped-up and gate-pressed shapes are not continuous sound can go, because after loading everyone Compartments of the loading gate the feeder gate each time must be interrupted until all empty documents, the goal of the pressing process from the heating press compartments into the compartments of the loading device have been withdrawn, have left the loading door.

The invention is based on the object, one with a multi-opening heating press equipped and for the finishing pressing of the

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Moldings set up plant for the production of press plates from glued wood chips, fibrous materials od. The like. To create the through a continuous way of working a greater production output results, which does not require a large amount of space and in which a failure-prone, costly changeover gear is avoided.

This is achieved according to the invention in that the loading device as a double paternoster mechanism with two endless chains driven in opposite directions and interacting in pairs formed and these are arranged leaving a free space through which an insertion and extraction arm hinda raw step can, and that in the height of the uppermost compartment of the double paternoster plant formed by the pairs of prongs above the prepress and an endless conveyor belt is attached to the forming line, to which a lowering device, also designed as a double paternoster unit, is attached is connected so that the empty rigid documents are returned in a vertical cycle to the beginning of the molding line.

In a chipboard production plant designed in this way the documents become in a steadily steady direction progressing, in a vertical plane lying cycle

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without long downtimes of the chipboard ~ feeder torque Continuously challenged step by step. Herewith are the Conditions for a fast pace of work and for achieving a high level of performance from the system are given, as they are with regard to the high investment costs in clay plate-making facilities Bendability reasons must be required. The circulatory movement the documents in a tertiary level also brings the advantage of reducing the space required for the system and is also also advantageous in that all parts of the sound system are easily accessible from all sides. Maintenance of the facility and the This makes it easier to eliminate τοη disturbances.

The documents with the gate-pressed shapes can be used for the purpose into the heating press compartments and the empty documents from the heating press into the compartments of the loading device retracting arm on the work surface with hydraulic or pneumatisem actuated coupling claws for the interaction with a mushroom-shaped head on the rear transverse edge of each pad Tersehen be.

In a preferred embodiment, the invention sees the goal that the üorgepreßten briquettes in the compartments of the heating press restrained

00988B / Ü636

Locks in curved tracks arranged on both sides of the healing press to guide and machine them so that they can be removed before pulling The documents are pivoted up to the plant against the rear end faces of the briquettes on the press feeder, back into the outside the heating press fan is returned to the starting position and after the end of the press gear a second time in the cam tracks are retracted so far into the open press compartments that they push the finished compacts a little way out of the press compartments. This training or arrangement of the insertion and extraction arm as well the locking strips made possible with relatively simple technical Means the training of the system for the underlay-free final pressing.

Ib sense of the basic idea of the invention can be the behind the heating press working unloading device advantageously also as a double paternoster plant with two counter-rotating, equipped with support prongs and arranged with a gap in between endless Conveyor belts and can be assigned to an extension arm that is hydraulically or pneumatically operated on the work surface Is equipped with grippers. The gripping tongs grasp the pieces pushed out of the press compartments by the locking strips Pressings and zi * .en them over into the unloading device.

009885/0636

The invention -will be explained below with reference to the drawings, in which an embodiment is shown, explained in more detail. It shows:

1 schematically shows the side view of the chipboard production plant according to the invention during different work phases in the individual compartments of the loading device, the multi-daylight heating press and the unloading device,

FIG. 2 shows the top view of FIG. 1,

Fig. 3 is the front view of the formed as a double Paternos terwerk Loading device}

Fig. 4 to 6 illustrate the operation and mode of action of the Fins of the multi-level heating press assigned locking strips

Finally, FIG. 7 schematically shows the arrangement of the locking strips leading cam tracks in plan view.

The system consists, as usual, of a molding line 1 with one or more spreading machines 2 arranged above them, from which on the rigid support plates 3 in one or in several layers of wood chips or the like

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Chip or fiber material is piled up. The chips are loose mixed with a mixture of glue and possibly also with an adhesive that works at room temperature and low pressure the shavings of the mats 4 poured onto the documents for a short time to form a sufficiently strong, manipulable plate 5. The chip mats 4 are pre-pressed in a pre-press 6 Both end faces of the prepress 6 arranged circular saws 7 come into action during the pressing process and cause the transverse trimming of the The ram of the pre-press 6 to about half the thickness of the originally heaped mass of compressed mat 4. The The maximum pressure of the prepress 6 can, as has been customary up to now, be about 10 kg / cm. Then several preformed plates 5 are in one Multi-daylight heating press 8 finished pressed at the same time. For this purpose, the preformed plates 5 on the shims 3 in the individual Compartments of the heating press 8 pushed in before the start of the final pressing process but the shims 3 are under those in the compartments of the heating press 8 remaining plates 5 withdrawn.

The loading device 9 working in front of the multi-storey heating press 8 is designed as a double paternoster plant. It consists of two endless chains 10 lying next to one another in a vertical arrangement, 10a, in each of which two chains are guided over lower chain wheels 11, 11a and over upper chain wheels 12, 1t. Cross bars

.0098BH / 06 3G ORDINAL INSPECTED

13 of the chains lO, lOa each carry a plurality of conveyor arms 14 which form a support grid. The conveyor arms of the two pairs of chains 10, 10a are arranged so that they face each other horizontally and there is a free space between the facing ends of the conveyor arms. The chains 10,10a are simultaneously incremented in the opposite direction by one distance each, that of the pitch arrangement the conveyor arms 14 corresponds, in such a way that the conveyor arms 14 around the lower chain wheels 11,11a around in the space enter between the facing ends of the conveyor arms, are moved up in the space and on the outside of the chains 10,10a go down again.

The coming from the Vorpreese 6 plate 5 is with the one carrying it Washer plate 3 after passing a weighing device 1? in the lower compartment of the loading device 9 pushed in, between the two chains 10,10a, the conveyor arms 14 result in a plurality of receiving compartments corresponding to the number of levels of the heating press, As soon as the lower compartment of the loading device 9 is inserted Has received the support sheet 3 with the plate 5 lying on it, the loading device 9 is held forward by one division. When the first to load · compartment of the loading device 9 in the altitude the "worst floor" of the Hcizpr ···· 8 has arrived, all "

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Shims 3 with the plates 5 lying on them at the same time pushed over into the floors of the heating press 8, the shims 3 but then immediately pulled back into the compartments of the loading device 9, while the pre-pressed plates 5 in the compartments of the Etageaheizpresse be held back.

The advancement of the shims 3 with the plates 5 and the retraction the shims without the plates is effected with a push arm 16, which is in a vertical position on the piston rod 17 one in front of the loading device 9 on a frame I9 arranged hydraulic cylinder 18 is attached. The push arm 16 with the exception of the top and bottom compartments over the entire height of the loading device 9 and is in width dimensioned so that it enter the free space between the ends of the conveyor arms 14 and close to the front face the floor press 8 can be advanced. The working surface of the Sohubarmes 16 is hydraulic or mechanical actuated coupling claws 20 equipped with the feed movement of the Sohubarmes 16 are moved against each other and thereby «inen mushroom-shaped head 21 of the one in the loading device 9 enclose the washer plate 3 located, which is at the same level with the coupling claws 20. Of the Schubar «16 pushes all» in the loading device Unterlagsbleehe 3 with the preformed plates 5 in the Alt Fäoher

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Multi-daylight heating press 8 over and is then in the starting position returned. Here he pulls the shims away from under the plates 5 and brings them back onto the conveyor arms of the loading device 9 * After completion of the return stroke movement, the coupling claws 20 open and give the mushroom-shaped Pull-out heads 21 of the shims 3 free.

The plates 5 introduced into the compartments of the multi-stage press 8 are held back by locking strips when the shims 3 are pulled off. The locking strips 22 sit on rods 23 »the are guided cantilevered in Kurrenbahnen 24 by means of Bollen. The cam tracks 24 are on both sides of the press frame 25 attached outside the heating plates 26 of the press. Each subject of the heating press are zvei Sperrlei most 22 assigned so that a space for the Dir chgang between them Push arm 16 is present. The locking strips are in the rest position 22 in a horizontal position between the loading device 9 and the multi-storey heating press 8, each above a press compartment (see Fig. 4). After inserting the shims 3 with the plates 5 in the compartments of the heating press 8, the locking strips 22 are through a suitable drive in the cam tracks 24 is advanced into the position shown in FIG. The locking strips perform here 22 a downward pivoting movement so that it is a vertical

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Take a position and lie down in pairs against the rear edge of a plate 5, but not up to the ink sheet 3 reach out. Fold the shims 3 through the returning When the push arm 16 is withdrawn onto the loading device 9, the strips 22 hold the plates 5 in the compartments of the multi-storey heating press 8 return. They only become automatic after the removal process has been completed returned to the horizontal starting position.

After the preformed plates 5 have then been equipped with the known type, if appropriate with a simultaneous locking device Multi-daylight heating press 8 are finished and the press by moving apart the heating plates 26 is opened again, the strips 22 come into action a second time. In the second step the strips 22 are in the Kurrenbahnen 24 over the Sperrattllunf moved forward by a certain horizontal distance. As a result, the finished compacts 5a are in the compartments of the multi-storey heating press 8 advanced so far that the front edge of the hand protrudes a bit from the press compartment (see Fig. 6).

An unloading device 27 is set up behind the multi-storey heating press 8, which can be designed as a double paternoster plant in the same way as the loading device 9. In the case of the unloading device however, the chains are gradually driven in the opposite direction of rotation so that the recording

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original

fan-forming conveyor arms perform a downward movement. Exactly as on the loading side, the unloading device 27 can be pushed forward hydraulically or mechanically between its conveyor arms Extending arm 23 assigned, on the work surface of which hydraulically or mechanically operated gripping tongs 29 are arranged.

After the extension arm 28 has moved up to the edge sections of the compacts 0a protruding from the press compartments, the closing gripping tongs 29 grasp the compacts 0a at the exposed front Ilandkantenabschnifcfcon. The returning arm 28 then pulls the compacts 0a over into the compartments of the unloading device 27 and transfers them to the compartments by automatically moving the gripping tongs 29 into the release position at a certain point on the Ilüolchubatrecke.

The Fürderkot ton der, which is then gradually switched on Unloading device 27, the compacts 0a one after the other deposited on a conveyor belt 30 arranged at the lower point of the unloading device 27 between the conveyor chains and via a Cross conveyor 31, for example a cooling device, a Stacking device 32 or fed to a further processing station.

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On the side of the χ loading device facing away from the floor heating grease B. 9 is at the height of the uppermost compartment of the loading device above the weighing device 15, the prepress 6, the spreaders 2 and the mold 1 trust an endless conveyor belt 33 arranged on which the empty shims 3 are fed to a lowering device 34 and from there again to the At the beginning of the mold line 1 must be brought.

The uppermost in each Faoh d »r loader 9 incoming backing plate 3 is by a trained as short endless conveyor belt carrier 35 _t in the free space between dun facing conveyor arms 14 of the chains 10, lOa fixedly installed, pushed onto daa long conveyor belt 33 . In a similar way, a second driver 36 is provided at the discharge end of the conveyor belt, which pushes the support plate 3 brought up on the conveyor belt into the respective uppermost compartment of the lowering device 34. The short, endless belts of the two drivers 35, 36 are provided with gripping hooks 37 which grip the rear transverse edges of the support plates 3 behind the mushroom-like heads 21.

The construction of the lowering device 34 corresponds to that of Unloading device 27} its chains are driven exactly like those of the unloading device so that the one another

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facing chain strands are gradually moved downwards. Down from the conveyor arms of the unloader Worn shims 3 verden one after the other on an endless Conveyor belt 38 deposited, which extends into the area of the forming line 1 forming endless belts.

On the Bücktransportveg over the long conveyor belt 33 and the Lowering device 3 ^ cool the documents 3ι the short-term Stay in the floor heating press 8 hardly warmed up and therefore Instead of being made of metal from less heat-resistant material, such as plastic, for example. For that «proper If the system works, care must of course be taken to ensure that all parts work together correctly on a clock-by-cycle basis.

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«» »« HAI. INSPECTED

Claims (2)

PATENT CLAIMS 1.JAnIage for the production of press plates from glued Wood chips, fibrous materials or the like, in which the pressed material in a F «rmstrasse piled on documents and in a prepress cold pre-pressed into shapes that can be manipulated, several moldings on the documents then simultaneously pushed into the compartments of a multi-level heating press via a loading device, before closing the heating press, remove the documents from under the formations held in place by locking bars in the press compartments at the same time withdrawn into the loading device and reclaimed empty to the beginning of the forming line, while the Pressings are transferred to an unloading device after the pressing process on the other side of the heating press, characterized in that that the charging device (9) as a double Paternosterverk formed with two oppositely driven, paired cooperating carrier prongs (14) having endless chains and these are arranged leaving a free space (9) through which an insertion and extraction arm (16) can pass, and that in the height of the uppermost compartment of the double paternoster unit formed by the pairs of prongs (14) above the prepress (6) and the forming line (1) an endless conveyor belt (33) is attached to which a double patemoster plant - 17 - 00988 5/0636 formed lowering device (34) is connected so that the empty rigid documents (3) in the tertiary circuit at the beginning of the molding line (1) be returned. 2. Plant according to claim 1, characterized in that the slide-in and pull-out arm (16) on the work surface hydraulically or pneumatically operated clutch claws (20) for cooperation with a known, having mushroom-shaped head (21) on the rear transverse edge of each pad (3). 3 · Plant according to claim 1, characterized in that the pre-pressed Moldings (5) in the compartments of the heating press (ε) restrained Locking strips (22) in curved tracks at both sides of the heating press (24) are guided and driven by machine so that they gagen the rear before removing the documents (3) up to the eel position End faces of the briquettes (5) swiveled over onto the press compartments, returned to the starting position and to B «endifc, During the pressing process, a second shark in I «n cam tracks (24) see above be retracted far into the open press cab so that they can get the Push the finished pellets (5 ·) a little bit out of the Preasefäohern. 4, appendix r.aoh claims 1 ua4 3 »characterized in that The unloading device (27) is a double patern © sterwerk with two counter-rotating driven off, equipped with Irag tines (14) and released · £ «· (? ■ Zwintiiearaum · * aagtordEitej: * ndlo« «n conveyor belts train "D her ice-cream undressing" "(2S) suggests i * t, d" p asa the working age hrdraulisoh or paiomfctieoh operated öreifsangen (29) 003835/0636
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