FI71104C - ARRANGEMANG VID FOERPACKNINGSANORDNINGAR FOER SAOGVAROR - Google Patents

Description

711 04 1 Arrangement in sawn timber packaging equipment

Arrangements relating to the issue of packaging 5

The invention relates to an arrangement in sawn timber packaging machines for adjusting them to operate for making packages of different widths, which packaging machine comprises a collection conveyor or the like for collecting saw mats corresponding to the width of the timber package to be formed, which are conveyed by a transfer device.

For example, a method is already known from FI patent 46 827 and SE publication 402 265, in which behind a package made in the direction of timber transport there is a fixed abutment surface against which the sawn layers 15 to be moved are driven. The disadvantage of the known solutions mentioned is the small capacity when making narrow packets. If the normal package width is e.g. 1150 mm and the width of the narrow package is e.g. 500 mm, the devices according to the prior art run each movable layer 1150-500 = 650 mm in a way unnecessarily.

20

Another method is also known from which an attempt has been made to eliminate the above-mentioned drawback, in which the entire transfer arm device is moved forward by the above-mentioned difference (650 mm) in the production of narrow packets, whereby of course the movement of the transfer arms is reduced by the same amount.

25 This device achieves high capacity even with narrow packages. However, the disadvantage is the expensive price of the necessary equipment, as the transfer equipment in question weighs about 3000___4000 kg.

The object of the present invention is to provide a new arrangement 30 in the packaging of timber, in which the disadvantages discussed above are avoided. It is a particular object of the invention to provide a device arrangement with which a high capacity can be achieved with relatively simple and lightweight devices.

35 In order to achieve the above and later objects, the invention is essentially characterized in that the response arrangement comprises adjustable response members which determine the position of its back side relative to the direction of entry of the timber in the package to be formed, and that said the response members are arranged in such a way that, for packages of different widths, the distance between the front side of the package and the starting level of the timber layers with respect to the direction of entry of the timber remains essentially constant when changing the width of the package to be made.

One indication of the advantage of the arrangement according to the invention is that when the weight of the previously known adjustable transfer devices has been about 3000 ... 4000 kg, the response arrangement 10 according to the invention can be implemented with devices weighing only about 200 kg.

The adjustable response device system according to the invention can often be implemented by various device solutions, such as guide-slide mechanisms, guide mechanisms connected to the actuator, e.g. by chain spacing or the like. The actuator can be, for example, a gear motor or a working cylinder. The locking of the resistance device can be implemented, for example, by means of a brake motor.

The invention will now be described in detail with reference to an embodiment of the invention shown in the figures of the accompanying drawing, to which the invention is not limited.

Figure 1 shows a schematic side view of a device according to the invention adjusted to the operating position for a normal-board timber package.

Figure 2 shows, in a manner similar to Figure 1, a response arrangement according to the invention adjusted for a narrow packet.

Figure 1 shows a hlss device 20 adjusted for a normal plate packet P1. The width P ^ of the package is then, for example, 1150 mm. The collecting conveyor, which consists of conveyor chains 10 and swivel wheels 11, brings the individual saws a against the barrier cam 12 so as to assemble the mat Kj. When the calculation devices known per se (not shown) have verified that the mat K 1 is of a set width (m 1), the transfer arms 13 receive an actuating pulse, whereby they transfer the mat to the packet forming state 3 71104 1 on the packet Pj. In Fig. 1, a mat Kj with a width ntj is just moving on the transfer arms 13 on the packet Pj.

The packing elevator 20 is known per se in terms of its frame structures, so that it has packet supports 16 movable on the rollers 18 connected to the vertical guides 17, which are guided, as is known per se, to step downwards as the package Pj grows on the arms 16. The packing elevator 20 is a response arrangement 14,15 according to the invention, which determines the level 10 T-T of the elevator 20 side of the package P to be formed. According to Figure 1, the level Tj-Tj of the stops 14 is adjusted to the level of the vertical edges of the beams 17, i.e. for the maximum possible (mj) width of the timber package Pj. Thus, according to Fig. 1, the transfer arms 13 bring the mat Kj against the abutment surface 14 and lower the mat Kj onto the package Pj on the elevator 20 in a manner known per se.

15

When it is desired to make a narrower package Pj according to Fig. 2, the position determining response 14 of the back side of the package Pj is set to the position 14 ', whereby the level of the back side of the package Pj coming to the support 20' is Tj-Tj. In connection with said setting, the distance L between the barrier cam 12 and the front edge of the package Pj remains essentially the same as with the package Pj with the normal width mj according to Fig. 1. In the production of the narrow packet Pj, the movement length of the transfer arms 13 is correspondingly shortened so that it is horizontally equal to mj + L, while in the case of Fig. 1 it was correspondingly mj + L. Thus, "unnecessary" transfer movement of the transfer arms is avoided in the invention. In Fig. 2, the saw mat leaving the conveyor 10,11 is marked with the reference K 1 and the corresponding mat already brought over the packet P 1 with the reference K 1.

4

The response arrangement shown in Figures 1 and 2 consists of vertical responses 14, 30 which are two or more in parallel in the same vertical plane or a corresponding plate part. The stops 14 are attached to horizontal guides 15a and 15b arranged in readings 1 (not shown) connected to the car 20 of the elevator 20. Connected to the stops 14 and / or the guides 15a and 15b are actuating devices known per se, such as a gear motor 35 or a working cylinder, if necessary using a chain transmission. These devices are not known per se and will be apparent to a person skilled in the art.

4 71104 1 The practical embodiments of the invention may, within the scope of the inventive idea, differ from those described above in connection with Figures 1 and 2. Within the scope of the invention, unchecked transmission into a packet can also take place with devices other than transmission arms. The implementation 5 of the packaging elevator can also differ substantially from that shown in the figures. It is also possible to implement the invention in such a packing machine, in which there is no actual packing elevator at all, but the sawn-free transfer device makes the necessary vertical movement as the timber package grows.

The following are claims which, within the scope of the inventive idea defined by it, may vary the various details of the invention.

15 20 25 30 35

Claims (9)

1 Patent claim 1. Packaging machine arrangement for property to control these to function for producing packages (P) of different width, the packaging machine comprising a collector conveyor (10,11) or the equivalent, with which one collects carpets (k ^) of a width (m ^ jn ^) corresponding to the wooden commodity packets (P ^, 2) to be formed, which mats are conveyed by transfer means (13) to the future packet (P ^ jP ^), characterized therein; that the barrier arrangement includes locking means (14) may be low, which determines the position of the rear side of the package (P) in relation to the entrance direction of the wood product to be formed and the said barrier means are arranged in such a way that with the package of different widths (m 2 -m 2), the distance between the front side of the package and the starting paw (12) of the wood products layer 15 is maintained substantially in relation to the starting direction of the wood product, when changing the width (m.-m0) of the package to be produced. 2. Arrangement according to claim 1, for use in such packaging machines, which includes a collector conveyor (10, 11), in connection with whose output end blocking devices (12), against which the saw mat (K 2) is collected, and next to which collector conveyor (10, 11) is provided a packaging lift (20) comprising a body part (17) in connection with which a support shaft (16) is arranged, in the support from which the package (P) to be formed is collected. with transfer shank (13) moving back and forth between the collector conveyor (10, 11) and the upper part of the design space of the packaging elevator (20), characterized in that said one or more locking means (14) have been arranged in connection with said body part (17) of the packaging elevator or the corresponding body structure, said means being substantially vertically oriented, said locking means being arranged to be displaced substantially in a horizontal direction in such a way that they determine the plane T2 of ^ a rear is formed in the support of the elevator and said locking means (14) is arranged to be adjustable in the horizontal plane 1 substantially in such a way that the distance between the locking plane of said locking devices ( 12) and the side of the wooden product package where the conveyor (10,11) collects (L) is located (1) substantially constant when changing the width (m) of the wooden product package (P). 3. Arrangement according to claim 1 or 2, characterized in that said locking means (14), so in the main axis, determines the vertical vertical plane (T ^ -Tj> ^ 2 ^ 2} conduits (15a, 15b) sliding in slides 1 in connection with the body part (17) of the package locking sleeve (20) or the like. 4. Arrangement according to claim 1 or 2, characterized in that the position of said blocking means (14) is arranged to control the cowl with a parallelogram channel. 10 5. Arrangement according to any of claims 1-4, characterized in that said locking means (14) is coupled to a working device, such as to a gearshift motor or working cylinder directly or via a suitable transmission, e.g. a chain intermediary. 15 Arrangement according to the nigot of claims 1-5, characterized in that the plane (T-T) on the rear side of the wooden product package to be formed, as determined by said locking means (14), is arranged to be controlled steplessly. 20 Arrangement according to any of claims 1-6, characterized in that in the transfer device of said locking means (14) there are licensing devices, such as a brake motor, with either the locking devices can be loaded at the set position. 25 Arrangement according to any of claims 1-7, characterized in that the locking means (14) are regulated at a position which is long from the output plane (12) of the wooden goods genus, the packing machines are regulated for packages (P) of normal width, which are most suitable. about 1150 mm and the said barrier means is adjusted to a position (14 ') which is closest to the output plane of the sawdust layer (K ^), the width of the packages made on the machine is the narrowest possible, most preferably about 500 mm. Arrangement according to any of claims 1-8, characterized in that the spacing (L) between the output plane (12) of the wood commodity (12) and the front side of the wooden commodity package (P) to be formed in the wooden commodity housing or the equivalent is about half of the narrowest possible width