FI63872B - SAETT ATT I EN SORTERINGS- OCH STAPLINGSMASKIN FRAON ETT SORTERINGSPLAN SORTERA OCH STAPLA SAOGAT VIRKE I UNDER SORTERINGSPLANET BEFINTLIGA FACK SAMT EN MASKIN FOER UTFOERANDE AV SAETTET - Google Patents

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Sweden-Sweden (SE) 7711686-1 (71) (72) Erik Henrik Wickman, Posthuset, U50 1 + 7 Bovallstrand, Sweden-Sweden (SE) (Ik) Leitzinger Oy. (5I +) A method in a sorting and taping machine from a sorting level to sort and tap sawn timber into trays below the sorting level and a machine for carrying out the method - utförande av sättet

It is known per se to sort and patch lumber in a sorting tray arranged under a sorting table or sorting table.

To the extent that machines have been developed to perform such sorting, it is generally sufficient to patch timber for packaging and delivery. It is thus a question of dried and leveled timber when the combined sorting and tapping machine thus performs the final stage of the treatment process.

Sometimes it is advantageous to arrange the baseboards between the different types of timber together with the stacking of the timber in the sorting tray. This is advantageous, for example, in smaller sawmills, where it is not economical to arrange sorting devices both in front of and after the drying device. Instead, it is advantageous to level and sort the freshly sawn timber and at the same time tap it for drying in the dryer below. However, this requires that the timber is first sorted on a sorting machine and then taped on a stapling machine or that the stapling is performed manually. After drying, the timber passes through the feeder to the packaging machine.

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The object of the present invention is to try to perform sorting in trays at the same time as the sorted and patched timber is automatically stripped. In doing so, efforts have been made to make use of the experience gained in stapling timber in stapling machines. Recently, the most common difficulty is that the supply of sawn timber to the stripping machine must take place continuously due to the continuous operation of the machines used in the earlier stage of the processing operation, while the automatic forward transport of the pallet has to take place intermittently or highly.

In this case, it has been found that the time between the feeding of two pieces of lumber is too short to be able to place the required number of fins between the different types of timber during this break. As an example, the normal feed rate for timber pieces is 30 timber pieces per minute, which means that there is 2 seconds of time available for stripping between two layers of timber, which is too small for the weight of the baseboard and the distance it has to be moved mechanically forward. .

The present invention essentially comprises arranging a stripping device outside each sorting tray of the sorting machine, which by means of an endless supply chain arranged on the side surfaces of the two sorting trays pushes a sufficient number of vessel strips transversely, performing stripping in the sorting machine tray.

At the same time, the operation of the stripping device is also arranged without the continuous stacking of the sawn timber between the buffer stocks of the adjacent compartments preventing it, as the timber can be placed and stored in that store for the time required by the stripper

The invention will become more apparent from the appended claims.

According to the invention, there is provided a combination machine which is considerably simpler and less expensive than all known sorting machines. For this reason, the invention can be applied in particular to the aforementioned smaller sawmills, in which a machine is placed in front of a drying device for transferring ribbed pins to it, and in which case the machine can be used as a sorting and packaging machine after drying timber 63872. However, due to the machine, simplicity and labor-saving features as well as very low manufacturing costs, the object of the invention can also be used very advantageously in large-scale production and large sawmills, as it is possible to arrange several co-operating units so that in the event of a machine failure there is never a need to stop in a plant using a single large series of machines or a single large combination machine.

The invention thus makes it possible, when designing new plants and rationalizing the older ones, to create the conditions for flexible and rapid production, which is also not affected to the greatest extent by possible machine failures.

In the following, the invention will be explained with reference to the accompanying drawings, in which:

Figure 1 schematically shows a sectional side view of an embodiment of a sorting, taping and stripping machine according to the invention.

Figure 1B also schematically shows a top view of the same embodiment of the invention.

Figure 2 shows a detailed section of the parts of two adjacent sorting trays and the buffer support according to the invention arranged between them.

Fig. 3 shows the embodiment according to Fig. 2 from above, in which case the position of the feed rails of the stripping device is more clearly shown.

Figure 4 schematically shows a cross-section of the stripping device.

An embodiment of a sorting, taping and stripping machine shown in section in Figure 1 comprises a sorting platform or table with endless feed chains 6 pulled around swivel wheels at the short ends of the sorting table. Figure IB

4,63872, four such supply chains are provided in the embodiment shown. Booms 5 are fastened transversely to the feed rails 6, which support the downwardly hanging carrier hooks 4. The timber 2 is fed from a feeder 3 with shorter feed chains to a central control point 7. From these feeders 8 on. Direction of movement is in this case according to Figure 1, the lower arrow. Elevators or the like 9 are arranged in the various sorting compartments 8, on which the timber is tapped by lowering the elevator level 10 step by step.

The sorting table rests on columns 19 / arranged between different compartments and, as shown in Fig. 1B, stripping devices 20-23 are arranged outside the various compartments, provided with strip feed chains 17 arranged along the side surfaces of the compartments as trailing columns 19 and drawn over horizontal pivot wheels 18. These bar supply chains 17 are provided with grippers 21 which protrude below the ends of the bar storage 22, one of which is located in front of each tray. The grippers 21 are arranged in front of each other on opposite supply chains 17 of each tray, and since the feed chains operate synchronously with each other by means of drive trays 18b associated with the trays (Fig. 4), the bar 15 can be moved over the elevator plane 10 transversely to the bar. The structure of the rim feeder is explained in more detail in Figures 3 and 4.

In addition to the stripping devices 20-23 outside the different compartments, according to the invention, buffer stocks of sawn timber 2 are also arranged between adjacent compartments 8, for example compartments 8a and 8b (see Figures 2 and 3), to support the operation of the different stripping devices 20-23. trapping the timber in the tray, for example 8a, on which the buffer support 24 is arranged does not prevent this operation.

In any case, the various buffer supports 24 are arranged between the tray in question, for example 8a, and the tray (for example 8b) in front of the timber (seen in the lower direction in Fig. 1). However, instead of lowering the timber from the feed conveyor 6 and the hooks 4 to the elevator level 10 of the intended tray, e.g. 8a, the pieces of timber 2 are lowered to the buffer support 24 , from which they are moved towards the stop device 27, while the stripping device pushes the bar 15 itself over the elevator level 10 of the tray 8a.

According to Fig. 2, the booms 5 are supported on four booms 6 on four sides of each other on a common axis 26a perpendicular to these chains 6, the booms being provided with grippers 26 (one for each hook) provided with a flexible hook for gripping lowered timber pieces. 16b and move them forward with the buffer support 24 towards said compartment 8a against the stop device 27, which is located in the operative position while the ribbing takes place in the compartment in question. As soon as the stripping is completed, the stop device 27 is released, and the type of timber counted on the buffer support is pulled over the baseboards 15 arranged in the trays 8a. If, according to Fig. 2, the patulation would also continue in the front compartment 8b and the timber 16a was located at the level of the buffer level of the compartment 8a, this would not impede the movement of the gripper 26 because its end is flexible and the support 24 stops the timber. In contrast, the stop device 27 is free in this case, whereby the timber 16b can protrude above the elevator platform 10 of the sorting tray 8a.

There is always one stop device 25 arranged for each of the hooks 4 of the four supply chains 6 and these stop devices move up to the stop position, for example by means of an electrical or hydraulic effect from the central control station 7 in connection with the classification of different pieces of timber. As soon as the stops 25 have pushed the stops 25 for the sorting tray, e.g. tray 8a, from the hook 4 of the timber piece 16b, the stops 25 descend again to the inoperative position, as shown in Fig. 3, allowing the gripper 26 to move the timber piece 16b forward towards the stopper 27 on the bumper support 24.

There are at least two stop devices 27 arranged in the longitudinal direction 24 of the pusher 63872 6. These devices 27 are also mounted on round irons below the level of the bumper support 24, by means of which the stop devices 27 can be turned laterally down to an inoperative position. This turning to the inoperative position takes place by an electrically controlled hydraulic device (not shown) which is actuated as soon as the last piece of timber 16 has been moved to the elevator platform 10, so that said piece of timber 16 at this point actuates an electrical switch not shown in the drawing. The electrical switch is also intended to start the stripping device 20-23 so that the strip 15 moves on the elevator level 10 or on the already lowered timber 16 by means of the strip supply chains 17. When the last base bar 15 has been moved from the bar storage 22 and reached its intended position, this bar activates an electrical switch, also not shown in Fig. 2, which returns said stop device 27 to the delivery position via said hydraulic device. When the last bar acts on the electrical switch, the drive of the stripping device 20-23 also stops.

The structure of the stripping device is shown in more detail in Figures 1B, 2 and 3 and 4. In front of each tray 8 there is a strip storage 22 and in connection with each strip storage there are two feed screws 22a (see Figures 3 and 4) to which the strip 15 is fed to the whole sorting machine. The feed screws 22a continuously fill different feed tanks 22 with washers 15. As previously mentioned, each side of each tray 8 has a bar feed chain 17 with a feed section located on the inside of the tray, e.g. 8a, while the remainder passes over the pivots 18 behind the posts 19. Both parts suitably slide on one or more washers 20, the washer 20 below the feeding part either being provided with hatches 23 at the points where the bar falls on the elevator level or on previously laid timber, or the feeding part is provided with lowering hatches 23a. It is also conceivable to arrange only subsidies to be calculated for the above-mentioned downturns. As can be seen in particular from Figures 3 and 4, the bar supply chains 17 are provided with grippers 21 which, when the feed parts of the supply chains 17 pass under the bar storage 22, receive the ends of the lowest bar 15 and push it out transversely to its longitudinal plane.

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In this way, by stacking the bar 15 and the timber 16a in turn on the elevator level 10 and gradually lowering this level, the timber can be gradually tapped so that the sorting tray 8a has a staple 13 as partially shown in the tray 8b. The elevator platform 10 is shown in the compartment 8a in the form of rollers 10 and can be raised and lowered by means of a vertical screw-operated elevator device 9, whereby when the elevator platform reaches its lowest position, the tap in the compartment 8a is also complete.

In the tray 8b, the elevator plane is shown in the form of an endless chain 12 supported by a beam, which can be lowered or raised by means of an elevator device 9, which is an up and down nut, which in turn can be moved up and down by a vertical screw. Such an elevator level is suitable when the purpose is to feed the finished pins out in the longitudinal direction of the sorting machine so that a plurality of pegs 13a are provided outside the short side of the machine, as shown in Fig. 1 and IB. Alternatively, the timber pegs 13 can be moved out laterally if the elevator platform is formed of endless chains moving perpendicular to the direction of movement of the timber supply chains 6. The timber sticks 13b fed to the side of the sorting machine can move to the positions shown in Fig. 1B.

The drive device of the rim supply chains 17 is shown in Figures 3 and 4. By means of the drive wheel 18b, guide gears 18 and thus each chain 17 can be driven along the side surface of each tray 8 via the gear wheel 18a.

When the bars 15 have been moved to the positions shown in Fig. 3 by means of the grippers 21, the hatches 23a arranged under the ends of the bars can be arranged to lower. The articulation system 23b can then also ensure that this operation takes place simultaneously.

Although the invention has been explained with reference to one embodiment thereof, it may nevertheless be arbitrarily modified within the scope of the following claims.

Claims (14)

A method in a sorting and stapling machine for sorting and stapling sawn timber from a sorting level, wherein the baseboards are arranged between each layer of timber in several sorting compartments below the level, whereby the timber (2) has crossed a central control point (7) and is classified according to the species, dimensions, quality of wood or the like in a particular tray, it is moved transversely against the feed direction to that level on top of the sorting trays (8) and placed in the intended tray as a result of said individual classification. 8) during the patching, placed on a buffer support (24) between said tray (8a) and the front tray (8b) as seen in the wood feeding direction, where the timber (16b) remains in place while the stripping takes place in the sorting tray (8a). ), after which the timber is fed directly onto the baseboards (15) placed in the tray. Method according to claim 1, characterized in that the timber pieces (2) are fed from the buffer support (24) by means of timber grippers (26) conveyed laterally by the timber supply chains (6) to an elevator or the like (9) arranged laterally until a timber layer (16) is formed. ), after which, while the sorted pieces of timber (2) continue to be placed on the bumper support (24), the slats (15) are transported on the timber layer (16) already moved into position and lowered with the elevator platform (9). the timber pieces (16b) are moved by means of grippers (26) onto the placed ribs (15) to form a new layer of timber. Method according to claim 1 or 2, characterized in that the timber pieces (2, 16b) are placed on the bumper support (24) near the edge furthest from said tray (8a) and gradually moved by means of grippers (26) towards the stop device (27) during stripping. located at the edge closest to said tray (8a). Method according to Claim 1, 2 or 3, characterized in that the pieces of timber (2) are conveyed in a manner known per se during transport in the sorting plane to hooks (4) depending on the timber supply chains (6), from which they are lowered into a selected tray (8a). ) (24). Sorting and stapling machine for carrying out the method according to any one of claims 1 to 4, wherein the machine has a sorting platform in which the timber pieces (2) are fed in pieces transversely to the direction of movement of the timber supply chains (6) to sort and staple timber into a plurality of sorting trays. and a central control point (7) for individually classifying timber pieces (2) (e.g. electronically) according to wood species, timber dimensions, timber quality or the like, characterized in that the machine compartments (8) allow for stacking in a specific compartment (8a) except, that they are provided in a manner known per se with a rising and falling elevator platform (10) is also provided with a buffer support (24) for the sorted timber pieces (16b) for said tray (8a) located in the feed direction of the tray (8a) and the timber n between the front tray (8b) on which the timber pieces (2, 16b) are brought against the stop device (27) for holding the timber with the support (24) while the strips are placed on the elevator platform to receive the timber layer (16) by means of a stripping device arranged in each tray. Sorting and stapling machine according to Claim 5, characterized in that the pieces of timber (16b) collected on the buffer support (24) are moved, after stripping, onto the ribs (15) arranged laterally in the elevator plane (10) after the stopping device ( 27) has been exempted. Sorting and tapping machine according to Claim 5 or 6, characterized in that the sorting level timber feeding device ίο 6 3 8 7 2 (4, 6) is arranged or guided with respect to the buffer support (24) so that the timber pieces (2) are located on the buffer support (24). ) first close to its peripheral edge from the tray (8a) and gradually the pieces of timber move by means of the timber grippers (26) towards the stop device (27) operating during the stripping, which is located at the edge closest to the tray (8a). Sorting and stapling machine according to one of Claims 4 to 7, characterized in that the sorting level feed chains (6) are provided with hanging hooks (4) in which the timber (2) is moved from the control area (7) and lowered into a selected tray. (8a), for example by guided removal of the timber pieces (2) from the respective hooks (4) by means of a stop (25). 8 63872 Sorting and tapping machine according to one of Claims 4 to 8, characterized in that when the timber pieces (16b) lowered on the buffer support (24) are released, the stop device (27) moves forward towards the elevator plane (9) of the sorting tray (8a). , by means of suitably flexible timber grippers (26). Sorting and stapling machine according to Claim 9, characterized in that the timber grippers (26) in the mutually parallel timber supply chains are arranged on a common shaft (26a) so as to move the timber pieces (16) forward parallel to one another. 11 S 3 8 7 2 Sorting and tapping machine according to one of Claims 4 to 10, characterized in that the ribbing device (17 to 23) is arranged by means of two endless chains (17) which move synchronously in a repetitive manner, the feed parts of which are pulled horizontally at the height of the buffer support (24). along the side surfaces of each sorting tray (8) with a suitable distribution to move the base bars (15) transversely to their longitudinal direction and with the ends resting on the elevator platform by means of bar grippers (21) arranged in the feed sections (17). Sorting and stapling device according to claim 10, characterized in that the bar grippers (21) are arranged to cooperate with hatches (23) or counting members (23a) (one or more) by means of which the ends of the washers (15) can be released to move vertically down. Sorting and stapling device according to Claim 12, characterized in that the bar supply chains (17) are arranged in cooperation with their bar storage (22) located outside the sorting trays (8), in which the bars (15) are arranged on top of a vertical pin, the bar of the supply chains (17) the grippers (21), as they move under the short ends of the warehouse (22) as the ship's slats (15) descend continuously, receive the lowest ship's sling (15) to move it over the elevator platform (10). Sorting and stapling machine according to one of Claims 10 to 12, characterized in that the buffer support stop device (27) is arranged to be released automatically as soon as the last piece of timber in the timber layer (16b) is in place and to operate again when the last batten (17) the supports (21) have left the bar warehouse and all the bars (15) have come into place. . 12 63872