JPH0550404A - Device for piling veneer - Google Patents

Abstract

PURPOSE:To provide a piling device capable of piling a veneer having a large length in filament direction precisely and efficiently without limiting upper limits of treatment numbers and treatment thickness. CONSTITUTION:Support rods 2 are stationarily provided respectively near the opposite sides of a transfer conveyor 1 for transferring a veneer 10 in a direction normal to its filament direction and also open/close rods 3 are provided below the rods 2 so as to be opened and closed. Transfer rods 6 are provided above the opposite sides of the rod 2 and the rods 3 so as to be vertically movable and horizontally movable parallel with the transfer direction. By the action of lever by means of the rods 2, 3, 6, the central portion of the veneer 10 is bent upwardly to prevent sagging thereof during the transfer, so that the location of the rod 3 can be set near the end surface of the veneer 10 in the filament direction, thereby enabling a piling treatment precisely and efficiently without limiting upper limits of treatment number and treatment thickness.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is constructed so that a veneer veneer (hereinafter simply referred to as a veneer) is transferred to a predetermined position in a direction orthogonal to the fiber direction, and then naturally or forcibly dropped to successively deposit. The present invention relates to a deposited device.

[0002]

2. Description of the Related Art Conventionally, as a depositing apparatus of this kind, a system in which a single plate is supported and transferred to a predetermined position by a pair of left and right opening and closing conveyors that can be opened and closed is highly accurate and efficient. In order to perform stacking, the position of the open / close conveyor should be set as close to the end face of the veneer as possible in the fiber direction, so that the open / close conveyor can be opened quickly and the drop distance of the veneer can be shortened. Is said to be desirable,
Then, as the length of the target veneer in the fiber direction becomes longer, the central part of the veneer in the fiber direction tends to drastically fall off, and good deposition cannot be achieved. This method is not suitable for accurate and efficient deposition of long veneers.

Further, for example, a support for temporarily supporting and opening at least the central portion of the veneer in the fiber direction so as to be supported and openable, and intermittently advancing and retreating in the same direction as the transfer direction is provided together with the opening / closing conveyor or alone. In order to prepare for, a method of dealing with a veneer having a long length in the fiber direction has been attempted, but as the advancing / retracting step of the support becomes significantly longer than the opening / closing step of the opening / closing conveyor, it is necessary to advance / retreat. Since it takes a long time, the processing efficiency is extremely low, and there is a problem that it is not very practical.

In addition, for example, an adsorption conveyer or a piercing conveyer for holding at least the central portion of the veneer in the fiber direction and a detaching mechanism for detaching the veneer from the conveyer are provided together with the opening / closing conveyer or independently. In preparation for
Although a method of dealing with veneers having a long length in the fiber direction has been attempted, the former method (adsorption) has the drawback that multiple veneers cannot be deposited at the same time, and veneers can be adsorbed at any time. Since a huge amount of suction equipment is required to wait for transfer, equipment costs and operating costs are relatively high, and the latter (sticking) method is also resistant to sticking and sticking. From the aesthetics of the traces, there is an upper limit on the thickness at which puncturing is easy, and there is a drawback that it is not suitable for depositing thick veneers or a large number of veneers.

[0005]

DISCLOSURE OF THE INVENTION According to the present invention, a veneer having a long length in the fiber direction is processed, and deposition processing is performed accurately and efficiently without significantly limiting the upper limit of the number of processed sheets or the processed thickness. It was developed for the purpose of providing a deposition apparatus that can be used.

[0006]

Specifically, each veneer is smoothly smoothed at a position of approximately the same height in the vicinity of both sides of a transfer conveyer for transferring the veneer to a transfer position at a pre-stage of a predetermined position. A pair of left and right support members having a supporting surface for supporting is fixedly provided, and each of the pair of left and right support members is tentatively received at a position on the lower side in the transfer direction, which is continuous with each of the left and right support members, so that each veneer can be smoothly supported and opened. A pair of left and right temporary receiving members having a temporary receiving surface are openably and closably operative, and at a position above both sides of the supporting member and the temporary receiving member, each has a length equal to or greater than the width of the veneer in the transfer direction. A pair of left and right transfer members having a height, and having an engaging surface that engages with the single plate more firmly than the supporting surface of the supporting member and the temporary receiving surface of the temporary receiving member, and is movable up and down It is specially configured to reciprocate in the direction parallel to Instead of the depositing device (claim 1) and the transfer member, each has a length equal to or greater than the width of the veneer in the transfer direction, and the supporting surface of the support member and the temporary receiving member are A pair of left and right having an engagement surface that slightly engages with the veneer than the temporary receiving surface, and a locking portion that is located on the upstream side in the transport direction of the engagement surface and that projects below the engagement surface. The invention proposes a deposition apparatus (claim 2), characterized in that the locking and transporting member of (1) is provided so as to be able to move up and down and reciprocally movable in a direction parallel to the transporting direction.

[0007]

1 is a front explanatory view of a deposition apparatus according to claim 1 of the present invention, and FIG. 2 is a side view thereof.

In the figure, 1 is a conveyor shaft 1a.
A pair of left and right transfer conveyors including a conveyor pulley 1b and a conveyor belt 1c, etc., which are driven by a drive source (not shown) such as a clutch & brake motor or a servomotor, in the direction of the arrow shown in FIG. While being driven, the left and right sides of the veneer are stopped and controlled based on a detection signal from a veneer detector 15, which will be described below. Always fix it constant.

Reference numeral 2 denotes a pair of left and right support rods provided as support members located at substantially the same height in the vicinity of both sides of each of the transfer conveyors 1, and each support surface smoothly supports the veneer 10. It has 2a and is fixed at the illustrated position, and supports the single plate 10 at both end portions only when the transfer rod 6 to be described later operates.

Reference numeral 3 designates a pair of left and right opening and closing rods, which are provided as temporary receiving members which are respectively arranged in series on the lower side in the transfer direction of the support rods 2, and each of which is a temporary receiving surface for smoothly supporting the veneer 10. 3a, and by swinging the support arm 4 based on the operation of the opening / closing operation member 13 including a fluid cylinder,
The left and right sides of the support shaft 5 are simultaneously opened and closed in the direction of the arrow shown in FIG. 1 to temporarily support the single plate 10 so that it can be supported and opened.

Reference numeral 6 denotes a pair of left and right transfer rods provided as transfer members located above both sides of each of the support rods 2 and the open / close rods 3, and each has a width in the transfer direction of the veneer 10. Elevating operation comprising a fluid cylinder or the like, having an equal or longer length and an engaging surface 6a that engages with the single plate 10 more firmly than the supporting surface 2a of the supporting rod 2 and the temporary receiving surface 3a of the opening / closing rod 3. By swinging the operating arm 7 and the supporting arm 8 based on the operation of the member 14, the spline shaft 11 is centered in FIG.
The shaft 9a, the chain wheel or the toothed pulley 9b, the chain or the toothed belt 9c, and the drive source 9d such as a servomotor are simultaneously moved up and down in the direction of the arrow shown in FIG.
A movable bearing box 12 based on the operation of the reciprocating mechanism 9 including
2 along the spline shaft 11 due to the reciprocating motion of FIG.
The left and right sides are simultaneously reciprocated by a constant distance in the direction of the arrow in the figure, and the single plate 10 is transferred from the transfer position to a predetermined position.

Reference numeral 15 denotes a veneer detector composed of a photoelectric tube or the like provided above each of the transfer conveyors 1. The detection points on the rear end side of the veneer 10 transferred by the transfer conveyor 1 are in respective detection areas. Whenever the above is reached, a detection signal is issued to a controller (not shown) that controls driving / stopping of each transfer conveyor 1 separately.

Reference numeral 17 denotes a stacking table provided so as to be capable of moving up and down below a predetermined position, and a height detector (not shown) in a conventional manner.
Based on the detection signals such as
Elevation control is automatically performed so that it is always kept almost constant.

The deposition apparatus according to the first aspect of the present invention is constructed, for example, as described above, and its operation mode will be described below.

That is, in the state shown in FIGS. 1 and 2, the detection point on the rear end side of the veneer 10 transferred by the transfer conveyor 1 reaches the detection area of the veneer detector 15, and the detection signal is transmitted. When the veneer 10 is issued and the transfer conveyor 1 is stop-controlled for each of the left and right sides based on the detection signal and the veneer 10 is stopped at the specified transfer position, first, the elevating operation member 14 is operated, and the transfer is performed as illustrated in FIG. The rod 6 is lowered, and the transfer rod 6 and the support rod 2 are
Due to this action, the vicinity of the central portion of the veneer 10 is bent upward to isolate the veneer 10 from the transfer conveyor 1 and prevent the veneer 10 from hanging down near the central portion.

Next, when the reciprocating mechanism 9 is actuated to move the transfer rod 6 in the same direction as the transfer direction, the engaging surface 6a of the transfer rod 6 supports the support surface 2a of the support rod 2 and the opening / closing rod 3. The single plate 10 moves in the transport direction on the support surface 2a of the support rod 2 and the temporary receiving surface 3a of the opening / closing rod 3 because the single plate 10 is engaged with the single plate 10 more firmly than the temporary receiving surface 3a. At this time, even on the temporary receiving surface 3a of the opening / closing rod 3, the central portion of the veneer 10 is bent upward by the lever action similar to the above, and the hanging down is prevented.

Eventually, when the veneer 10 is transferred to a predetermined position, the reciprocating operation mechanism 9 stops the response of the transfer rod 6, and further, as illustrated in FIG. 4, the elevating operation member 14 and the opening / closing operation member 13 operate. (Preferably in the order listed)
If the transfer rod 6 is raised and the opening / closing rod 3 is opened, the veneer 10 will fall naturally onto the deposition table 17.

After that, the reciprocating operation mechanism 9 and the opening / closing operation member 1
3 operates to return the transfer rod 6 and the opening / closing rod 3 to the initial positions, and the same operation is repeated thereafter, so that the veneer 10 can be sequentially deposited.

Further, according to the deposition apparatus constructed as described above, the central portion of the veneer is bent upward by the lever action of the transfer rod, the support rod and the opening / closing rod to prevent it from hanging down. Therefore, even if the length of the veneer in the fiber direction is long, if the veneer is supported only by the opening and closing rod, the provisional normal receiving and stacking cannot be achieved. Since it is possible to set the veneer toward the end face in the fiber direction so as to greatly exceed the limit position, the opening / closing rod can be quickly opened and the drop distance of the veneer can be shortened. The veneer having a long length in the fiber direction can be accurately and efficiently deposited.

In addition, because of the above structure, there is no fear that the equipment cost and the operating cost will be much higher than in the past, and of course, if necessary, a plurality of veneers can be deposited at one time. Or, a thick single plate, which has been difficult to stab in the past, can be subjected to a deposition process without any particular problem, and there is no difficulty in significantly limiting the upper limit of the number of processed sheets or the processed thickness.

Further, as a characteristic peculiar to the above structure, the veneer transferred to the transfer position is constrained substantially evenly by the engaging surface of the transfer member and transferred to the predetermined position as it is. Therefore, even if there is a large fibrous crack in the veneer, there is no risk that the cracked portions will overlap during transfer.

In the above embodiment, the veneer is designed to fall naturally, but in terms of efficiency and deposition accuracy,
A pressing member having a length equal to or greater than the width of the veneer in the transfer direction is provided above the central portion of the predetermined position so as to be able to move up and down, and is lowered in synchronization with or slightly ahead of the opening of the temporary receiving member. It is well known that it is more preferable to forcefully drop while constraining.

In the illustrated embodiment, for convenience of illustration, the central portion of the veneer is exaggerated and bent upward.
The point is that it is enough to prevent the central part of the veneer from hanging down to the extent that it does not hinder the deposition, and it is necessary to bend the veneer upward near the central part even from the stability of the veneer's fall. It is preferable to keep it to the minimum limit, and it is preferable to set the lowered position of the transfer member and the relative height position of the transfer conveyor and the support member (and the temporary receiving member) in accordance with such conditions.

The supporting member / temporary receiving member and the transfer member are not limited to the shapes shown in the illustrated embodiment and may be variously designed and changed to other suitable shapes, but each of them satisfies the required surface condition. It is essential that the engagement surface of the transfer member is covered with a friction enhancer made of rubber, abrasive cloth or the like, or subjected to a friction enhancing treatment such as knurling as much as possible. It is preferable to firmly engage the veneer with the single plate. When the engaging surface of the transfer member is engaged with the veneer as strongly as possible, the support surface of the support member and the temporary receiving surface of the temporary receiving member are provided. Is an ordinary smoothness, for example, materials (various metals, etc.)
It does not matter if it is as smooth as when it was drawn or extruded.

On the contrary, when the engaging surface of the transfer member cannot be so strongly engaged with the single plate as in the case where the engaging surface has the normal degree of smoothness (roughness), the supporting surface of the supporting member is Also, the temporary receiving surface of the temporary receiving member needs to be subjected to friction reducing treatment such as plating or tetrafluoroethylene resin coating to support the single plate as smoothly as possible. 7 ・ As illustrated in FIG. 8, a large number of rollers 2c (rollers 3
c), the support member 2A (temporary receiving member 3A) is formed by using the roller holder 2d (roller holder 3d) or the like, and is used as the support surface 2e (temporary receiving surface 3e) that rolls on the single plate. Is also appropriate.

Of course, the form of the actuating member and the like used for actuating the temporary receiving member and the transfer member is not limited to the form of the above embodiment, and for example, a cam mechanism may be used instead of the illustrated fluid cylinder, or the illustrated structure. A fluid cylinder may be used in place of the rotary traveling type reciprocating mechanism, etc. In essence, as long as the temporary receiving member and the transfer member can be operated in a desired direction, the temporary receiving member and the transfer member may be used without any particular restriction.

On the other hand, the deposition apparatus according to claim 1 of the present invention transfers the veneer while constraining the veneer from the beginning by the transfer member as described above, whereas the deposition apparatus according to claim 2 of the present invention uses the above-mentioned method. In place of the transfer member, a locking transfer member as described below is provided, and the veneer is transferred after waiting for the locking portion of the locking transfer member and the veneer to be caught.

That is, in the deposition apparatus according to the second aspect of the present invention, as shown in FIG. 5, for example, instead of the transfer rod 6 shown in FIGS. Has a length equal to or greater than the width of the support rod 2a of the support rod 2 described above.
And an engaging surface 16a that engages the veneer 10 slightly more than the temporary receiving surface 3a of the temporary receiving rod 3, and is located on the upstream side of the engaging surface 16a in the transfer direction and below the engaging surface 16a. A pair of left and right locking transfer rods 16 having a disk-shaped locking portion 16b projecting upward are provided so as to be vertically movable and reciprocally movable in a direction parallel to the transfer direction.

The construction of the other members conforms to the construction of the deposition apparatus according to claim 1, but the transfer conveyor is
As will be described later in detail, it is not always necessary to perform stop control for each of the left and right sides, and therefore the single plate detector also
It can be omitted to one.

According to the deposition apparatus having the above-described structure, similarly to the deposition apparatus according to the first aspect, when the veneer 10 stops at the transfer position, first, the elevating operation member 14 is operated. , The locking transfer rod 16 is lowered, and by virtue of the leverage of the locking transfer rod 16 and the support rod 2, the central portion of the veneer 10 is bent upward to isolate the veneer 10 from the transfer conveyor 1. At the same time, it prevents the veneer 10 from hanging down near the center thereof.

Next, when the reciprocating mechanism 9 is actuated to move the locking transfer rod 16 in the same direction as the transfer direction, the engaging surface 16a of the locking transfer rod 16 becomes the support surface 2a of the support rod 2. Also, since the locking transfer rod 16 temporarily moves in the transfer direction on the veneer 10 because it engages the veneer 10 slightly more than the temporary receiving surface 3a of the opening / closing rod 3, the locking part 16b eventually reaches the veneer 10. After that, as illustrated in FIG. 6, the single plate 10 moves in the transfer direction on the supporting surface 2a of the supporting rod 2 and the temporary receiving surface 3a of the opening / closing rod 3. However, at this time, if only the locking portion 16b of one of the left and right locking transfer rods 16 is caught by the veneer 10 first, the locking portion 16b of the other locking and transporting rod 16 is locked by the veneer 1.
Until reaching 0, in other words, until the posture of the veneer 10 follows the positions of both the locking portions 16b, one side of the veneer 10 is moved forward.

In the following, the single plate 10 is deposited on the deposition table 17 according to the operation described in the description of the deposition apparatus according to the first claim, and the opening / closing rod 3 in the process is deposited. On the temporary receiving surface 3a, the hanging down of the central portion of the veneer 10 is prevented as in the above case, and as a result, substantially the same effect as the above case is obtained.

As a characteristic characteristic based on the above-mentioned structure, since the veneer is hooked and transferred by the locking portion of the locking transfer rod, even if the veneer at the transfer position is inaccurate. Even if it is, it can be modified so that it always follows the locking part of the locking transfer rod.Of course, in order to accurately specify the posture of the veneer at the transfer position, stop control of the transfer conveyor for each left and right It is not necessary to do so, and since it is sufficient to provide one single plate detector, the structure can be further simplified as compared with the deposition apparatus according to claim 1 above.

In the deposition apparatus according to claim 2,
The supporting surface of the support member and the temporary receiving surface of the temporary receiving member must support the veneer smoothly, and if the above-mentioned surfaces do not support the veneer smoothly, the veneer has large cracks in the fiber direction. In this case, the cracked portions are likely to overlap during the transfer. Therefore, it is preferable that each of the surfaces has at least the smoothness described above, and the friction reduction treatment similar to that described above may be applied to each of the surfaces depending on the smoothness of the engagement surface of the locking transfer member. There is no problem even if you apply.

That is, the engagement surface of the locking and transporting member is required to be engaged with the single plate slightly more than the supporting surface of the supporting member and the temporary receiving surface of the temporary receiving member. As described above, the locking transfer member 16A is formed by using a large number of rollers 16c, roller holders 16d, rectangular plate-shaped locking portions 16f, and the like, and the engaging surface 16e rolls with respect to the single plate. If the mating surfaces are used, even if the supporting surface of the supporting member and the temporary receiving surface of the temporary receiving member are subjected to the friction reducing treatment, the conditions can be sufficiently satisfied, and the supporting surface of the supporting member and the temporary receiving member can be satisfied. If the temporary receiving surface of No. 2 is of a normal smoothness, the condition can be sufficiently satisfied by performing the friction reduction processing on the engaging surface of the locking transfer member.

However, when the engagement of these members with the single plate is based on friction, the supporting surface of the supporting member and the temporary receiving surface of the temporary receiving member and the engaging surface of the locking transfer member are smooth. It is not always necessary to provide a significant difference in height, and if the engaging surface of the locking transfer member is slightly smoother than the supporting surface of the supporting member and the temporary receiving surface of the temporary receiving member, or at an equivalent level. Even if it is smooth, the lever action always applies a larger load to the supporting surface of the supporting member and the temporary receiving surface of the temporary receiving member than the engaging surface of the locking transfer member. As a result, the engaging surface of the locking transfer member engages with the veneer obviously less than the supporting surface of the supporting member and the temporary receiving surface of the temporary receiving member, and the operation as described above is repeated. There is no particular problem.

The locking portion of the locking transfer member may be designed without any restriction as long as it has a shape projecting below the engaging surface, and a single plate may be used if necessary. The setting for forcibly dropping, the preferable setting of the relative height positions of the transfer conveyor and the supporting member (and the temporary receiving member), the shape of each member, and the like have been described in the description of the deposition apparatus according to claim 1 above. Since the conditions are the same, the description is omitted to avoid duplication.

Of course, in any of the above deposition apparatuses,
There is no denying the combination with the conventional deposition apparatus having other configurations. For example, by combining with the deposition apparatus of the puncturing conveyor system described above, a plurality of different thicknesses that are well suited for each deposition apparatus can be obtained. Applications such as alternate deposition of seed veneers are also possible.

[0039]

As is apparent from the above, according to the deposition apparatus of the present invention, a single plate having a long length in the fiber direction is processed, and the accuracy is improved without significantly limiting the upper limit of the number of processed sheets or the processed thickness. Since the deposition process can be performed efficiently and efficiently,
It greatly contributes to the rationalization of the veneer deposition process in the plywood factory.

[Brief description of drawings]

FIG. 1 is a front view of a deposition apparatus according to claim 1 of the present invention.

FIG. 2 is a side view illustrating the deposition apparatus illustrated in FIG.

FIG. 3 is an operation explanatory view of the deposition apparatus illustrated in FIGS. 1 and 2.

FIG. 4 is an operation explanatory view of the deposition apparatus illustrated in FIGS. 1 and 2.

FIG. 5 is a partial side view of the deposition apparatus according to claim 2 of the present invention.

6 is an operation explanatory view of the deposition apparatus illustrated in FIG.

FIG. 7 is a side view of another example of the support member (and the temporary receiving member).

8 is a front explanatory view of the supporting member (and the temporary receiving member) illustrated in FIG. 7. FIG.

FIG. 9 is a side view of another example of the locking transfer member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Transfer conveyor 2 ... Supporting rod 2A ... Supporting member 3 ... Opening / closing rod 3A ... Temporary receiving member 6 ... Transferring rod 9 ... Reciprocating operation mechanism 10 ... Single plate 13 ... Opening / closing operation member 14 ... Lifting operation member 15 ... Single plate detector 16 ... Locking transfer rod 16A ... Locking transfer member 17 ... Stacking table

Claims (2)

[Claims] 1. A deposition apparatus for sequentially transporting veneer veneers to a predetermined position in the direction orthogonal to the fiber direction and then naturally or forcibly dropping the veneer veneers, wherein the veneer veneer is transferred to the preceding stage of the predetermined position. A pair of left and right support members, each having a support surface for smoothly supporting the veneer veneer, are fixedly provided at positions of substantially the same height in the vicinity of both sides of the transfer conveyor that transfers the position to the position. A pair of left and right temporary receiving members each having a temporary receiving surface for temporarily supporting the veneer veneer smoothly and capable of temporarily opening the veneer veneer are provided at the positions on the lower side in the transfer direction connected to the respective supporting members so as to be openable and closable. Each of the supporting members and the temporary receiving members has a length equal to or more than the width of the veneer veneer in the transfer direction at an upper position in the vicinity of both sides of the supporting member and the temporary receiving member. Veneer stronger than the surface An apparatus for depositing veneer veneer, comprising a pair of left and right transfer members having engaging surfaces that engage with the veneer so as to be vertically movable and reciprocally movable in a direction parallel to the transfer direction. 2. A stacking device for sequentially stacking veneer veneers by moving them to a predetermined position in a direction orthogonal to the fiber direction and then naturally dropping or forcibly dropping the veneer veneer to the preceding stage of the predetermined position. A pair of left and right support members, each having a support surface for smoothly supporting the veneer veneer, are fixedly provided at positions of substantially the same height in the vicinity of both sides of the transfer conveyor that transfers the position to the position. A pair of left and right temporary receiving members each having a temporary receiving surface for temporarily supporting the veneer veneer smoothly and capable of temporarily opening the veneer veneer are provided at the positions on the lower side in the transfer direction connected to the respective supporting members so as to be openable and closable. Each of the supporting members and the temporary receiving members has a length equal to or more than the width of the veneer veneer in the transfer direction at an upper position in the vicinity of both sides of the supporting member and the temporary receiving member. Veneer slightly than the surface Elevating a pair of left and right locking transfer members each having an engaging surface that engages with the veneer and an engaging portion that is located on the upstream side of the engaging surface in the transfer direction and that protrudes below the engaging surface. An apparatus for depositing veneer veneers, which is configured to be operable and reciprocally movable in a direction parallel to a transfer direction.