FI118375B - sorting device - Google Patents

Description

118375

sorting device

The invention relates to a method according to the preamble of claim 1 for sorting elongated pieces such as saws.

The invention also relates to a sorting device according to the preamble of claim 4.

Sorting methods and sorting equipment are used e.g. lumber sorting facilities. The pieces of sawn timber, i.e. the saws, are sorted and possibly individual saws are further cut at the sawmill sorting plant according to a suitable sorting program and 10 are transferred to a sorting assembly to wait for further processing. The Sawdust Sort Box consists of a series of successive sorting trays. The saws are moved by a cross conveyor included in the sorting device over the sorting compartment, moved over the sorting compartment and segregated according to a predetermined program into one of the successive compartments.

15

The Finnish Patent Publication FI-61671 discloses a saw sorting device in which saws are carried on transverse conveyor conveyor hooks above sequentially sorted trays. The conveyor hook is turned by means of the drop means so that the saw falls into a predetermined sorting bin.

20

The transverse conveyor is implemented in the aforesaid patent publication by hanging on endless '** parallel conveyor chains 52 a plurality of parallel conveyor hooks 50, which are intended to support and move V' saws s. Each conveyor hook 50 is pivotally mounted and this j 25 is in turn attached to a conveyor chain 52 as illustrated in Figures 2 and 3. The conveyor hook 50 can pivot vertically about the pivot pin 51. pair. For turning, the parallel conveyor hooks 50 are provided with a handle 53 which is attached to the hooks at the pivots. The arm 53 is directed at the pivot point ... upwards. Dropping means 54 for sawing s; 30 of the conveyor hooks 50 are disposed above each sorting bin 3; 31, 32.

• * • · · •

The drop means 54 are implemented in two ways in the aforementioned patent publication. First, the dropping means 54; In option 54a (cf. Figure 2), parallel transport - .. *. the free end of the arm 53 connected to the hooks 50 is provided with a roller 55 and 35 is disposed to pass along the guide 56. The drop means 54a comprise an operating cylinder * · * · '57, a lever arm 58 and a flap 59 connected to the guide 56. and thus actuated, the piston rod is pushed out, whereby the lever arm and through it the flap 59 is pivoted so as to engage the guide 56. As the transverse conveyor 5 is moved forward (direction E), the roller 55 of the parallel transport hooks 50 is guided by the flap 59 above it 5, whereby the arm 53 and the parallel conveyor hooks 50 at the same time pivot to the drop position and the saw s1 carried by the conveyor hooks 50 drops into the sorting bin 32 below.

In another alternative, the drop means 54; 54b comprise an actuator cylinder 60 and a roller 61 fitted to the lower end of the piston rod (cf. Fig. 3). When the cylinder 60 is pulsed and thus actuated, the piston rod is pushed out, whereby the roller 61 moves to a position where it is in the path of the next upwardly directed conveyor hooks 50. As the transverse conveyor 5 is moved forward (direction E), the arm 53 meets the roller 61 and pivots so that the parallel conveyor hooks 50 also turn to the drop position and the saw s 1 supported by the conveyor hooks falls into the sorting bin 32 below.

A sorting device and drop means similar to the above are also disclosed in US-A-2003230519.

20

The sorting apparatuses described above and the corresponding sorting methods are operated at a predetermined constant speed. The transverse conveyor speed is not intended to be changed or adjusted, for example, according to the load on the plant. Problems arise when increasing the speed of the friction conveyor to a constant speed and thereby increasing the sorting speed and the capacity of the sorting plant to V ·:25.

A AA AA »I I« •

A particular problem with the sorting equipment shown is that as the transverse conveyor speed increases, the saw is detached and falls from the transport hooks. as a result of the operation of the lines always takes place in the same position above the sorting tray A · * 30. The saw will then release at high speeds from the transport hooks in a way that is too late and will drop vertically in the transverse direction. There is a danger that] !!! the saw no longer hits the desired sorting bin below, but the next one.

Even if the saw hits the right compartment, the problem is that the saw collides with the fall

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• * ♦ · when running at high speed inside the tray to its rear wall or even to the top of the wall between trays 35. In both cases there is a risk that the saw will get X. surface damage or damage at all. In the latter case, the whole

AA

lupine sorting machine Elia may need to be interrupted if the saw breaks *** · 'and / or supports the sorting bin orifice.

3, 118375

The object of the invention is to eliminate the disadvantages associated with the sorting devices described above. It is also an object of the invention to provide a novel method and apparatus for applying it to sorting elongated pieces, such as saws, into successive sorting trays.

The method according to the invention for sorting elongated bodies such as saws into successive sorting trays or similarly defined collecting basins is characterized by what is set forth in claim 1. The sorting device according to the invention is characterized by what is set forth in claim 4 of the present invention. .

In the method of the invention for sorting elongated pieces, such as saws, into successive sorting trays or similar collecting basins, the pieces are moved by a transverse conveyor over the sorting trays and the individual pieces are separated from the transverse conveyor according to predetermined sizing characteristics. According to the invention, the separating means are tracked to be moved transversely to the sorting compartments and along the same trajectory of the pieces so that they can be positioned at a desired position within a predetermined positioning relative to the sorting compartments, in particular the openings of the sorting compartments.

··: ** The method of the invention has two preferred embodiments. First, all separation means are tracked together to be moved relative to the sorting trays • t * * in the transverse path of the conveyor and the same pieces. In the second differentiation *: 25 means are tracked in two or more groups for movement relative to the sorting trays ···, especially the sorting trays, and at the same time * «» ·. * ··. track motion.

• · *

The sorting device according to the invention is arranged above successive sorting trays or similar collecting basins and comprises: a transverse conveyor having • · · 30 conveying means for moving successively and transversely of elongated pieces such as saws and a number of sorting means sequentially arranged. overlays to separate elongated pieces into the transverse conveyor • · *! * us according to predefined properties into sorting trays. According to the invention, the sorting apparatus further comprises: a subframe to which the separating means are connected !, „! 118375 4 in a transverse conveyor and body movement path, and transfer means for moving the subframe by means of which the separating means can be set to a desired position within a predetermined setting separation ratio, in particular for sorting.

The device according to the invention has several preferred embodiments. In the first, the subframe is imaged extending substantially over the entire length of the transverse conveyor. This allows all the separation means to be tracked together for movement relative to the sorting compartments in the transverse conveyor and at the same movement of the pieces. In another embodiment, the sorting apparatus comprises a plurality of subframes and associated transport means 10, which subframes are sequentially sequenced and movably secured to the sorting compartment groups in the transverse conveyor and track movement path. By means of auxiliary frames, the separation means are tracked in two or more groups to be moved relative to the sorting trays, especially the sorting trays.

An advantage of the invention is that the speed of the transverse conveyor of the sorting device can be adjusted without undesirable effects, since the separation point of the saws relative to the sorting trays can also be adjusted. Preferably, the position of the separation means is adjusted in the direction of travel of the center opening of the sorting trays and the transverse conveyor forward direction, taking into account the speed of the transverse conveyor. Adjusting the position of the separation lines ensures that the sorted saws always fall into a predetermined and desired sorting bin and that no sorting malfunctions or damage to the saws occur.

In the following, the invention will be described in more detail with reference to the accompanying silicon cartridges, wherein: Figure 1 schematically illustrates a lumber sorting plant; Fig. 2 shows a detail of a known sorting device, in particular two conveyor hooks for a transverse conveyor, and dropping means for dropping the saw into the sorting compartment, respectively; Fig. 3 shows a detail of another known sorting device, in particular a boy. Two conveyor hooks for 30 friction conveyors, and second drop means, respectively, for dropping the *** into the sorting bin; Fig. 4 is a side elevational view of a sorting apparatus according to the invention; Figure 5 shows a top view of a part of a sorting apparatus according to the invention; Figure 6 is a side view of a portion of the feed end of a sorting apparatus; Fig. 7 is an enlarged cross-sectional view of an F-F section of a sorting apparatus; Figure 8 is a side elevational view of a second sorting apparatus according to the invention; and Figure 9 is a side view of a third sorting device according to the invention.

In the drawings, the same reference numerals are generally used for like parts.

Figures 2 and 3 were discussed in connection with the prior art description.

10

The sawdust sorting compartment 3 comprises a plurality of consecutive sorting compartments 31, 32, 33, ..., 3N (N = positive integer), which may be e.g. 30 (N = 30). The saws s are transported by the transverse conveyor 5 of the sorting device 1 above the sorting bin 3, moved over the sorting stack 3, and the saws s are segregated by a predetermined 15 sorting program from suitable characteristics such as quality and / or dimensions, ..., 3N as shown schematically in FIG. The saws s are introduced into the inlet end of the sorting apparatus 1 by the feed conveyor 70 and the compartments of the sorting assembly 3 are unloaded under them by a sequential outlet conveyor 80.

The sorting device 1 according to the invention, illustrated in Figs. 4-7, V: comprises a transverse conveyor 5 having conveyors 7, 71, 72 movable in the direction E for successive and transverse movement of the saws s; s1, s2. , and a plurality of separating means 4; 41,42, which are imaged above the successive sorting compartments 3; 31, 32 for sorting the saws from the transverse conveyor 5 according to predefined features based on e.g. quality and / or dimensions. - compartments 3; 31.32.

The sorting device 1 further comprises a subframe 2 and transfer means 15 for moving the subframe 2. Separating means 4; 41, 42 are connected to subframe 2. Subframe 2 is. **. 30 movable and movable to fixed sorting trays 31, 32,. 33,. The subframe 2 extends over the entire species compartment 118375 6 by means of the transfer means 15, the separating means 4; 41, 42 can be placed at a desired position within a predetermined position a in relation to the sorting compartments 3, 31, 32, especially the openings 30 in the sorting compartments.

The auxiliary body 2 is formed of at least one (or alternatively, two spaced apart and parallel) elongated rods 20 or the like rail mounted on a fixed device body, in particular a sorting device body, by machine parts 16 which allow linear and parallel movement of the rods. Most preferably, 16 are formed by a plurality of guides, such as conductive blocks 161, and followers 162, 10, such as carriages or wagons, mounted thereon. The guide blocks 161 are attached at a distance from one another to the side of the guide 12 of the cross conveyor 5 in this direction. In turn, the conductor 12 is fixedly attached to the body of the sorting device 1. In this case, the rod 20, which acts as a subframe 2, is longitudinally disposed in the middle region of the lower part of the transverse conveyor 5 and in the direction A - A of the transverse conveyor 5.

The transfer means 15 of the subframe 2 are made of at least one power unit, such as a pressure medium cylinder 17 (cf. Fig. 6). This is mapped between a fixed body of the auxiliary body 2, such as a rod 20, or a body part attached thereto, in this case the guide 12 of the transverse conveyor 5. The transfer means 15 is preferably adapted to accommodate the subframe 2; 20 at one end or in the vicinity thereof, such as the feed end of the transverse conveyor 5 of the sorting device 1. The auxiliary frame 2 and the feed end of the transverse conveyor 5 are, if necessary, arranged with telescopic fitting parts · *, 18. The auxiliary frame 2 is arranged to extend over the sorting compartment 3.

• * • «

Alternatively, the transmission means 15 of the subframe 2 can be implemented by means of an electric motor and f ·· v: suitable movement means (rotational motion - linear motion), such as a gear and a combination of rods.

The subframe 2 and the associated devices, in particular the separating means 4; 41, 42, are moved by the transfer means 15 in relation to the sorting compartments 31, 32 within a predetermined setting range a. This setting distance a is preferably in the order of 300 mm to 400 mm. The position of the winding means 4; 41, 42 can then be changed between the middle region of the sorting trays 31, 32 ··· 30 as seen in the direction of the transverse direction A-A of the transverse conveyor, particularly in the transverse direction. E, taking into account ··· the speed of the transverse conveyor 5. As a rule, the subframe 2 with its separating means 4; 41, 42 is set such that at a high transmission speed of the transverse conveyor 5, the separating means 4; 41,42 are in the transfer direction. E when viewed at the front of the orifice 30 · «· 1 and at lower speeds closer to the center of the orifice 30. The mouth 118375 7 has an average width of class 1 000 mm in the trajectory of the transverse conveyor 5 and in the direction of travel E.

In the embodiment shown, the transverse conveyor 5 of the sorting device 1 has two parallel endless chains 6; 61 (only one chain shown in the drawings) 5 transport means 7 arranged at regular intervals; 71, 72. The conveying members 7 are preferably parallel conveyor hooks or corresponding support portions 8; 81, 82 provided with an auxiliary arm 9. Support member 8; 81, 82 is most preferably an L-bracket, but may also be shaped in other forms such as a U-bracket or a curved bracket. The auxiliary arm 9 is fixedly connected at one end to the parallel hinge parts 10; 81, 82, which is a straight bar or the like. The support 10, in turn, is pivotally attached from two parallel pivot points B to the first follower 11, respectively, which are connected to the endless chains 6; 61. Support parts 8; 81, 82 are able to pivot vertically about the axis through the pivot points B. The first Followers 11 are wagons or skates with rollers, wheels 15 or the like, which are lowered in the lower part of the transverse conveyor 5, respectively, to run along parallel first rails 12. At one end of the auxiliary arm 9 is a roller 13 or similar second follower, followed by a second conductor 14 which is parallel and parallel to the first conductor 12. A second guide 14 20 is attached to the subframe 2; 20.

Separating means 4; 41, 42 comprise a lever 4a and an actuator, most preferably a pressure fluid cylinder 4b, for driving the lever 4a. The lever 4a is part of the second conductor 14. Press, the media cylinder 4b is pivotally attached at one end to the subframe 2; 20 * ·· to the tracked support 2a and the end of the piston of the cylinder 4b to the free end of the lever 4a. The other end of the lever 4a is pivotally secured by a hinge or similar pivot pin * · "'to the guide 14 or to the subframe 2, 20. The lever 4a has two positions, i.e. resting · ·•• | | working positions C, D, of which C lever 4a, or part thereof, is disposed to form a straight and organic portion of the second conductor 14 and in another position D to rotate at an angle to the second conductor 14 such that the portion of the second conductor 14 and its path formed by lever 4a #. .

• · * ♦ · • ·

When the desired separation means 4; The actuator 42, such as cylinder 4b, receives an operating command: ** · from the control unit of the sorting device 1, by means of which the lever 4a is raised from the rest position C to the operating position D · (·). As a result, the transverse conveyor 5 will now be next described.

: separating means 4; A transport member 7 at 42 and the corresponding sorting bin 32; 72 support member 8 drops the saw s; s2 ko. to the sorting bin 32. This occurs by means of the transport member 7; 72 roller 13 of the auxiliary arm 9 is released from the guide of guide rail 118375 8 because lever 4a is in working position D and guide 14 is cut off. In this case, the transport member 7; 72 bearing member 8; 81; 82 pivots vertically together with auxiliary arm 9 about pivot point B and releases a movable lumber piece s in support member 8; s2 and drop it. tray.

5 Subframes 2; 20 to be connected thereto with separation means 4; 41, 42 can be moved to the sorting trays 3; 31, 32 with respect to the orifices 30 between the two positions G, H (Fig. 6) by means of transfer means 15. The separation of the positions is allowed within a range of a. Similarly, the means of separation 4; The position of the 41, 42 relative to the sorting trays can be varied, as shown in particular by dashed lines in FIG. Subframe 2; The feed end 20 of the transverse conveyor 5 and the transverse conveyor 10 are disposed with telescopic fitting portions 18 for the second guide 14 so that, regardless of the position of the subframe, the guide 14 is uniform at this point without interruption.

Alternatively, the separating means 4 may be implemented in ways other than those described above. Separating means 4; 43.44 comprise, for example, a lever 19a and an actuator, preferably a pressure medium cylinder 19b, for operating the lever, as shown in Figure 8. The lever 19a has two positions, the rest position and the working position I, K. In the first or rest position I, the lever 19a is located on the conveyor means 7 of the transverse conveyor 5; 71, 72, such as outside the range of motion of the support members 8, and does not affect the support members 8 and the saws s carried by them; sl. In the second, i.e., working position K, lever 19a is tracked to actuate (directly or indirectly) transverse conveyor 5 in the following embodiment. sorting tray 3; In the support section for 32, 8 movable lumber pieces: ·, s; s2 for releasing and dropping into tray 3; 32. Then the lever 19a acts «I · \ t; auxiliary arm 9; 91 so that it pivots the support member 8 about the pivot point B in the vertical * / plane, whereby the saw s; s2 drops from support member 8 to tray 32.

The device according to the invention has several advantageous embodiments. In the above-described embodiments of the invention, the subframe 2 is, as a rule, a sequenced extension. ***. to the nucleus for substantially the entire length L of the transverse conveyor 5. This separates all the separating means 4 together to be moved to the sorting lugs 3; 31, 32, 33, ..., 3N on the trajectory A-A of the transverse conveyor 5 and the same pieces s 30. In the embodiment of the invention shown in Fig. 9, the sorter **: * "slider 1 comprises a plurality of subframes 2; 21, 22, 23 and associated transport means for moving them. The subframes 2 are at least two, figure 9 s] ": in the example there are three. Stopping 2; 21, 22, 23 are arranged relative to each other. essentially in succession. The auxiliary bodies are movably secured to the sorting trays at their respective positions, in particular below. with respect to the sorting tray groups 3a, 3b, 3c, * ·· * in the movement path A to A of the transverse conveyor 5 and the movable bodies s. 4a, 4b, 4c e.g. as in the embodiments described above. Subframes 2; By means of 21, 22, 23, the separating means 4 are arranged in two or more groups 4a, 4b, 4c to be moved relative to the sorting trays 3, in particular to the sorting groups 3a, 3b, 3c.

In the above embodiment of the invention having a plurality of subframes 2 that are adjustable relative to compartment groups 3a, 3b, 3c; 21, 22, 23, separating means 4 for each compartment group 3a, 3b, 3c; The position of 4a, 4b, 4c with respect to the orifices 30 of the sorting trays 3 can be independently adjusted. This has the advantage, inter alia, that the sorting apparatus can handle and sort both light and heavy pieces 10, such as saws, and in particular fresh sawn and freshly dried saws, respectively. These behave differently when separated by means of separation 4; 4a, 4b, 4c from transverse conveyor 5 to predetermined sorting compartment 3a; 31, 32, 33. Fresh saws are heavier than dried saws of the same dimensions. The direction of movement of the dry saws from the fast moving transverse conveyor 3 at the time of release 15 is more gentle than that of the fresh saws. Thus, I have dried pieces of sawn timber or the like are separated by the first sub-frame 21 of the separation devices 4a compartmental 3a, wherein the auxiliary body 21 is provided close to the transfer device 151 of the orifice 30 the front edge, while the fresh pieces of sawn timber or the like are separated by the second (and / or third) 22 (23), separation devices subframe 4b (4c) a second (and / or third) compartment group 3b (3c) 20, wherein the subframe 22 (23) is adjusted by a transfer device 152 (153) in the middle region of the opening 30. It is also possible to use the sorting box groups 3a, 3b, 3c having different opening widths in the sorting compartment 3.

·· * 1 • ··. The invention is not limited to the above exemplary embodiment only, but many variations are possible within the scope of the inventive idea defined by the claims.

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Claims (10)

118375 ίο A method for sorting elongated pieces, such as saws (s; s1, s2), into successive sorting trays (3; 31, 32, 33, ..., 3N) or similar collecting basins, in which the pieces, such as saws, are moved by a transverse conveyor. 5 (5) above the sorting trays (3) and separating the individual pieces (s; s1, s2) from the transverse conveyor according to predetermined properties into suitable predetermined sorting trays by means of separation means at each of the sorting trays, 43; , 44) arranged to be movable relative to the sorting trays (3; 31, 32, 33, ..., 3N) in the transverse conveyor (A) to the same of the pieces (s; s1, s2) so that they can be set to the desired position at a predetermined positioning interval (a) relative to the sorting trays, in particular the mouths (30) of the sorting trays. Method according to Claim 1, characterized in that all the separating means (4; 41, 42, 43, 44) are arranged to be movable together with the sorting trays 15 (3; 31, 32, 33, ..., 3N) of the transverse conveyor (5). ) and the same path (A - A) for the tracks (s; sl, s2). Method according to claim 1, characterized in that the separating means (4) are arranged in two or more groups (4a, 4b,, 4c) to be moved to the sorting trays (3), in particular to the sorting tray groups (3a, 3b, 3c). 5) and on the same trajectory (A - A) of the tracks (s). • · * · *! A sorting device (1) disposed above successive sorting trays (3; 31, 32,:: 33, ..., 3N) or similar collection vessels, comprising: a transverse conveyor (5), having transport means (7) for moving successively and transversely of elongated pieces, such as saws (s; s1, s2), a plurality of separating means (4) arranged above successive sorting trays (3) of elongated pieces (s); ; sl, s2) for separating the transverse conveyors: "]: from the thimble (5) to predetermined properties to the sorting trays, characterized in that the sorting device (1) further comprises: a subframe (2); , to which the separating means (4; 41, 42, 43, 44) are connected, which auxiliary body is movably attached to fixed sorting trays (3; 31, 32) in the transverse conveyor (5) and the movement path of the pieces (A-A), and 118375 - transfer means (15) for moving the subframe (2; 20), by means of which the separation means (4) can be placed in a desired position within a predetermined positioning interval (a) with respect to the sorting trays (3; 31, 32), in particular the mouth openings (30) of the sorting trays. Sorting device according to Claim 4, characterized in that the auxiliary body (2; 20) is arranged to extend substantially over the entire functional length (L) of the transverse conveyor (5). Sorting device according to Claim 4, characterized in that the sorting device (1) comprises a plurality of subframes (2; 21, 22, 23) and associated transport means (15; 10 151, 152, 153), the subframes being arranged substantially in series and fixed movably relative to the sorting bin groups (3a, 3b, 3c) in the transverse conveyor (5) and the movement path (A-A) of the pieces. Sorting device according to one of the preceding claims 4 to 6, characterized in that the auxiliary frame (2) is formed by at least one elongated bar 15 (20) or a similar rail fixed to the fixed device body by machine parts (16) for linear and parallel movement; such as a plurality of guides (161) and followers (162) connected thereto to the bar (20). Sorting device according to one of the preceding claims 4 to 7, characterized in that the transfer means (15) are formed from at least one actuator, such as a press. '20 of the media cylinders (15a) connected to the subframe (2; 20) and the fixed body: · * ·: Lille. • · · • · «• · · Sorting device according to one of the preceding claims 4 to 8, characterized in that the transfer means (15) are arranged to place the separating means (4; 41, 42, 43, 44). · · ·. snow clearance (a) is of the order of 300 to 400 mm. • · • · · 1 A sorting device according to any one of claims 4 to 9, comprising: a transverse conveyor (5) having conveyor means (7; 71, 72) arranged at regular intervals on endless chains (6; 61), in particular support members (7); 8; 81, 82),. ···. provided with an auxiliary arm (9) and arranged to pivot vertically about a pivot point (B) connected to the first followers ·; · 30 (11) associated with the chains (6) arranged at the lower part of the transverse conveyor # <'i * in the sinuous first conductors (12) and wherein at one end of the auxiliary arm (9) is a ·: ··· roller (13) or similar second follower arranged in turn on the other conductor (14) which is parallel and parallel with the first guide (12), characterized in that the second guide (13) is attached to the auxiliary body (2; 20) and the separating means (4; 41, 42) comprise a lever (4a) and an actuator, most preferably a pressurized fluid cylinder (12). 4b), for operating the lever (4a), which lever (4a) is part (18) of the second conductor (14), the organic part of the lever (14) and the path thereof formed by the lever is interrupted by the separating means (4; 41, 42). 5 Patent claims