SE410581B - TIMES AND DEVICE FOR BUNTING WOOD - Google Patents

Description

pveo241z-o needs to be fork-shaped, and which transfers timber layers from a layer-forming site to a substantially vertically movable stacking substrate cooperating with a wiper member. The Swedish patent application 76 04028-6 and the Swedish publications 384,488 and 393,966 describe previously known packers who do not allow simultaneous stacking of two or more smaller timber packages when desired.

In the method according to the invention it is essentially characterized in that at the layer-forming site a wide or two or more narrower layers are formed with mutual distances by means of two or more alternatively or simultaneously moving stop means, and that when two or more layers are simultaneously transferred by the support or transport means at least one of these is delivered by co-operation with a further wiper means, which from an inactive position has assumed an active position substantially at the level of the first wiper means.

After the layer or layers have been deposited on the stacking substrate, it moves downwards corresponding to the height of the wood layers, however, the scraper member or means remain in their original position, in order to allow the transfer of additional layers to the formation or layers being formed. the stacks or timber packages. V For efficient function, the stop means are arranged on a carriage, sledge or the like, which is horizontally movable relative to a delimiting device. The position of the carriage relative to the delimiting device is then adjusted depending on the desired width of the layers resp. the bundles or packages.

In the case of simultaneous formation of several layers resp. bundles, the stop means are caused to cooperate alternately, so that a newly formed layer is transferred from the layer-forming position of the first stop means to a collection position of a subsequent stop member. Thereafter, all stop means are caused to assume an inactive position for simultaneous transfer of formed consecutive layers to the stacking base.

The invention also relates to a timber bundling device for carrying out the above-mentioned method, which device comprises - a layer-forming point with a stop member and a delimiting device, a support or transport member for one or more timber layers, a frame, one substantially vertically movable along the frame stacking base, a scraper means arranged for cooperation with the carrier or transport means for dispensing wood layers on the stacking base resp. on this previously stated layer and means for continuous or stepwise feeding of the stacking substrate substantially in step with applied layers, and which timber bundling device is substantially characterized by at least one further stop means and at least one wiper means arranged that from inactive position, when only one layer and a bundle formed, be able to assume an active position substantially at the level of the first-mentioned stop means resp. wiper means to allow simultaneous formation of several layers resp. bundles on the stacking base. bet is particularly advantageous if the extension of the scraper members downwards constitutes a control and support plan for the respective timber packages when transporting out.

Additional features of the invention will become apparent from the following detailed description of exemplary embodiments shown in the accompanying schematic drawings.

Fig. 1 is a side view of a crochet device with a layer forming part in operative position for forming layers for a full package, a fork-shaped support or transport device and a stacking base with a vertically movable scraper device in its inoperative lower position.

Fig. 2 is a view corresponding to Fig. 1, but with the layer-forming part and the extra wiper means of the stacking substrate in operative position for forming two consecutive layers resp. two quarter packs.

Figs. 3-5 are side views, which simply illustrate the different working steps of the layer-forming part when forming layers for the auxiliary package.

Figs. 6-9 are Figs. 3-5 corresponding to side views but showing the different working steps of the layer formation part in the formation of two layers for the quarter package.

Fig. 10 is a side view showing the stacking substrate in the formation of the auxiliary package, the additional wiper member being in the inactive position. 'Eig. 11 is a view corresponding to Fig. 10 but with the additional wiper means in the active position for forming two quarter packets.

Fig. 12 is a side view illustrating the stacking base when transporting a full package.

Fig. 13, finally, is a side view corresponding to Fig. 12, showing the stacking base together with wiper means when transporting out two quarter packages. Initially, the layer formation site shown on the right in Fig. 1 will first be described in connection with the formation of layers for the auxiliary package. On a transverse conveyor 17, boards 19 are transported past a stop member 25, which is in a lowered operative position, towards a stop member 24, which is in an upper operative stop position. The stop means 24 and 25 are arranged on a horizontal movable carriage 23, which can assume different positions on a fixed base 26 by means of an endless chain 27. In this case, layer 2 containing the desired number of boards can be obtained, i.e. of varying width. The function of the two stop means 24 and 25 is shown below.

When the desired number of boards 19 have been collected to form a timber layer 2, a delimiting device, which consists of two members 20 and 21 movable against each other, clamps firmly following board.

Additional fed boards are collected as they arrive at said clamped board. On a signal from a support and transport device located between the layer formation site and the stacking substrate, which in the embodiment shown consists of two fork-shaped laying members 1, 1 'reciprocating in a path, the stop member 24 is then lowered, the delimited timber layer 2 is fed onto the cross conveyor 17 and out onto a conveyor 18. These two conveyors 17 and 18 are driven by a common drive shaft 22.

Thereafter, the stop means 24 is swung back again, whereby at the same time the delimiting device 20, 21 loosens the previously clamped board, whereby the collected boards are fed towards the stop means 24. Thereafter, the process described above is repeated.

The layer fed on the conveyor 18 is carried out by either the laying means 1, 1 'over the stacking substrate 3. When the laying means in its end position moves downwards and backwards, the layer is scraped against the scraping member 5 and delivered to the forming bundle 11 on the stacking substrate 4.

The stacking substrate then performs a downward movement corresponding to the height of the applied layer. If necessary, the stacking base can perform a continuous downward movement.

The formation of two layers for quartz packages will now be described with reference to Figs. 2 and 6 and 7.

On the cross conveyor 17, boards 19 are transported towards the stop member 25, which is now in the upturned operative stop position. When a sufficient number of boards 19 has been collected to obtain a timber layer 2 ', the delimiting device 20, 21 clamps a solid subsequent board. Additional fed boards are collected as they arrive at the said clamped board.

The stop member 25 is now pivoted down, the layer 2 ”being transported towards the stop member 24, which is in its upturned operative stop position. As soon as the layer 2 'has passed, the stop member 25 is pivoted again up to its operative stop position. The layer delimiting device 20, 21 now releases the previously clamped board, which together with the collected boards is fed towards the stop means 25. When the desired number of boards has been collected to form a new timber layer 2 ", the delimiting device 20, 21 again clamps the next board. Additional feed boards are collected as they reach the clamped board.At the signal from the laying means 1, 1 ', the stop means 24 and 25 are now pivoted down simultaneously, the timber layers 2', 2 "being fed onto the cross conveyor 17 and out onto the conveyor 18. After the timber layers have passed, the stop member 25 is swung up, whereupon the process described above is repeated.

The bundling device itself will now be described with reference to Figs. 10-13.

On the forward fork legs of the support members 1, 1 ', the wood layers 2 resp. 2 ', 2 "out over a roller track 4 belonging to a stacking sub-layer 3, after which the relevant support member performs a downward-backward movement, the wood layer 2 or the wood layers 2", 2 "being ironed off either against the wiper member 5 ( Fig. 10) or the wiper means 5, 8 (Fig. 11).

The stacking base 3 "is movable upwards and downwards in an elevator frame 7, where it is arranged in elevator chains 12, which run around sprockets on a drive shaft 13 and a turning shaft 14. The movable wiper member 8 with a support roller 9, which is arranged in a bracket 10, is movable up and down in the elevator frame 7. The bracket 10 is arranged in chains 15, which run around sprockets on the drive shaft 16 and the turning shaft 14. The turning shaft 14 thus constitutes a turning shaft for both chains 12 and 15.

For each new timber layer that is discharged, the stacking substrate 3 is lowered corresponding to the layer thickness, the rear edge of the layer sliding down along the support rollers 6 (Fig. 10) resp. 6 and 9- (Fig. 11). _ The working layers 2 resp. 2 'and 2' ', as they are transferred to the stacking substrate 3, form the wood packages 11 and 11 'and i1 ". When laying the quarter package, the wiper device 8, together with the support roller 9 and the bracket 10, follow downwards to this discharge position, after which the roller conveyor 4 starts and carries out the complete package 11 resp. quartz packages ll ', ll ".

When a package has been discharged, the stacking substrate 3 is moved with the roller conveyor 4 up to its uppermost position.

If two smaller packages are then to be formed simultaneously again, the wiper member 8 is also moved with the roller conveyor 9 and the bracket 10 up to its upper operating working position. However, if only a larger package is to be formed, the wiper means 8 together with the roller conveyor 9 and the bracket 10 may remain in its lower working position.

The timber bundling device according to the invention has been described above for alternative stacking of a full package resp. two quarter packs. However, those skilled in the art will appreciate that the invention can be modified by simple means by inserting additional stop means at the layering site and wiper means adjacent to the stacking substrate for simultaneous formation of three, four or more packages. Other modifications are also possible within the scope of the basic idea of the invention as described by the appended claims.

Claims (10)

7802413-0 Patent claims 1. l. Methods of forming timber layers and bundling them in stacks of different widths using a reciprocating support or transport means which transfers the layers from a layering point to a substantially vertically movable stacking substrate during such co-operation with a wiper means that the layers are released during the return movement of the carrier or transport means, characterized in that a wide or two or more narrower layers are formed at the layer formation place with mutual distance by means of two or more alternative or simultaneously movable stop means, and that then two or several layers are simultaneously transferred by the carrier or transport means, at least one of these is dispensed by cooperation with a further wiper means, which from an inactive position has assumed an active position substantially level with the first wiper means. 2. A method according to claim 1, characterized in that the stop means are arranged on a horizontally movable carriage, sledge or the like, the position of which relative to a delimiting device is adjusted depending on the desired width of the layers resp. bun- tarna. 3. A method according to claim 1 or 2, characterized in that the stop means in the case of simultaneous formation of several layers resp. bundles are caused to cooperate alternately, so that a newly formed layer is transferred from the layer-forming position of the first stop member to a collection position of a subsequent stop member. 4. A method according to claim 3, characterized in that all stopping means are simultaneously caused to assume an inactive position for simultaneous transfer of formed consecutive layers to the stacking substrate. Timber bundling device for carrying out the method according to claim 1, comprising ia) a layer mixing point with a stop means (25) and a delimiting device (20, 21), b) a support or transport means (1, 1 ') for one or more timber layer (2, 2 ', 2 "), c) a stand (7), d) a stacking base (3, 4) substantially vertically movable along the stand, e) a scraper member arranged for co-operation with the support or transport member (5) for depositing wood layers on the stacking substrate and on this previously dispensed layer, respectively, and f) means (12-16) for continuously or stepwise feeding of the stacking substrate substantially in step with applied layers, characterized by at least one further stop means (24) and at least one further wiper means (8) arranged that from inactive position when only a layer (2) and a bundle (11) is formed, they can assume an active position substantially level with the first-mentioned stop means (25) and wiper means, respectively. (5) to allow the formation of several layers (2 ', 2 ") for simultaneous transfer to and simultaneous formation of several bundles (ll', 1l") on the stacking substrate. Wood bundling device according to claim 5, characterized in that the stop means (24, 25) are arranged on a carriage, sledge (23) or the like, which is horizontally movable along the layer-forming place and adjustable relative to a delimiting device (20, 21). Timber bundling device according to claim 5 or 6, characterized in that the stop means (24, 25) are individually movable. A timber bundling device according to any one of claims 5-7, characterized in that the further wiper member (8) is supported by a bracket (10), which is substantially vertically movable in a vertical guide (7a) belonging to the frame (7). 9.. Timber bundling device according to claim 8, characterized in that the further wiper means (8) is located above a support roller (9) with a vertical shaft mounted on the bracket (10), which constitutes a guide and support plane for a formed timber package at its exit transport. , 10. l0. Timber bundling device according to claim 8 or 9, characterized in that the vertical movement of the bracket (10) takes place with the aid of an endless chain (15), which runs over sprockets on the axles (16, 14) stored in the frame one above the other, wherein the lower shaft (14) simultaneously receives a wheel for a chain (12) which causes the vertical movement of the stacking base (3, 4). STATED PUBLICATIONS: In Sweden 384 488 (B65G 57/18), 393 966 (B65G 57/18), 402 265 (B65G 57/18)