JPH0114138B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for positioning and supplying a veneer veneer.

In the manufacturing process of plywood, there is a step in which multiple veneer veneers (hereinafter simply referred to as veneers) are sequentially fed to a predetermined polymerization position and polymerized. In order to improve this, it is necessary to correct the feeding posture of each veneer.

However, in the past, when correcting the posture of each veneer, for example, one end of each veneer in the same direction as the fibers and one end in the direction perpendicular to the fibers was brought into direct contact with a ruler (stopper). Then, the posture of the veneer is corrected according to the regulation of the ruler, which is the so-called regulation correction method, or, for example, a plurality of conveyance members for placing and conveying the veneer are stopped at each desired position, and the veneer is Because the method uses a so-called restraint correction method in which the posture of the veneer is corrected by restraining the frictional force generated on the conveying surface due to its own weight, it does not match well with the characteristics of the veneer, leading to various problems. Ta.

In other words, as is well known, veneer has remarkable anisotropy unlike general materials, and it is relatively flat in the same direction as the fibers and has considerable strength. There is no particular problem in correcting the posture by touching one end of the direction directly against a ruler, but since the fiber is non-flat and has almost no strength in the direction perpendicular to the fiber, do not touch the end in the direction perpendicular to the fiber suddenly. When it touches a ruler,
Buckling occurs due to inertial force, resulting in damage near one end in the direction perpendicular to the fibers, or the buckling stretches back to its original state immediately after the ruler is released.
If the corrected posture collapses, and if the veneer is suddenly stopped by a conveying member, the frictional force based on the veneer's own weight will act unevenly, causing the veneer to deviate from the desired stopping position, or to extend with buckling. If problems occur, and repeated transport and stopping at low speeds to avoid these problems, efficiency inevitably decreases.

In order to improve the polymerization accuracy, the present invention takes out a vertical ruler of the veneer before polymerizing the veneer to the polymerization position,
To provide a feeding method in which the feeding posture of the veneer can be accurately corrected by holding the vertical ruler so as not to wrap the veneer, and then transporting it to the overlapping position and taking out the horizontal ruler while transporting the veneer. The aim is to streamline the manufacturing process.

The above-mentioned vertical ruler is a ruler at one end in the same direction as the fibers of the veneer. The above-mentioned horizontal ruler is a ruler at one end in the direction perpendicular to the fibers of the veneer.

Specifically, a ruler removal position for placing a ruler at one end in the conveyance direction of the veneer being conveyed in the same direction as the fibers;
A superposition position separated by a predetermined distance in the transport direction from the ruler-extracting position, and a pricking member or suction member are provided, and the veneer with the vertical ruler taken out at the ruler-extracting position and the pricking member or suction member are provided, The upper surface of the veneer is stuck or suctioned and held over the entire width of the veneer in the thickness direction and in the direction perpendicular to the fibers by contacting the veneer all at once in the thickness direction and in the direction orthogonal to the fibers. Next, while transporting the pricking member or the adsorption member to the overlapping position, also move it in a direction perpendicular to the transport direction so that one end in the direction perpendicular to the fibers of the veneer coincides with a predetermined alignment line. Second, there is a supply method in which the movement is stopped to determine the position.

According to such a supply method, since the vertical ruler is first drawn out at the ruler drawn position without particularly restraining the veneer, it can be easily carried out as usual without any particular trouble.

Next, the veneer from which the vertical ruler has been taken out is brought into contact with the pricking member or the suction member all at once over the entire width of the veneer in the thickness direction and in the direction orthogonal to the fibers, and The upper surface of the veneer is stuck or held by suction over the entire width in the direction perpendicular to the fibers of the veneer.

Generally, the causes of the vertical ruler twisting include uneven force being applied to the vertical ruler or horizontal ruler direction of the veneer after the vertical ruler has been taken out, or differences in the speed of the left and right conveyor belts when conveying. Conceivable.

However, in the present invention, in the relationship between the vertically oriented veneer and the pricking member or adsorption member, the veneer is brought into contact with the veneer all at once over its entire width in the thickness direction and in the direction orthogonal to the fibers. It does not contain any elements that would create a vertical ruler.

Next, in the present invention, since the veneer is transferred to the overlapping position while being stuck or held by suction by the sticking member or suction member, the element of wrapping around the vertical ruler is also eliminated here.

Next is the horizontal ruler, which is used to position one end in the direction perpendicular to the fibers while being restrained in a reinforcing manner, so even if the ruler moves and stops abruptly, there are various problems like in the past. There is no risk of this being induced, and the feeding position can be corrected very efficiently and accurately, which is extremely effective in streamlining the plywood manufacturing process.

Hereinafter, the present invention will be described in more detail with reference to an example of implementation illustrated in the drawings.

The embodiments illustrated in FIGS. 1 to 4 are examples of application of the present invention in a pasting polymerization process.

3 in the figure is a conveyor disposed at the ruler takeout position B, which is normally rotated in the normal direction by a reversible drive source (not shown) such as a reversible electric motor, and is used to deposit the piles on the stacking table 12 which can be raised and lowered. The veneer 2 is taken out one by one from the pile 2a and coated with adhesive by the gluing machine 1, and is transported forward in the same direction as the fibers, and the reversible drive source is intermittently reversed based on the detection signal of the detector 5, which will be described later. Only during operation, it is temporarily reversed to transport the veneer 2 backward in the same direction as the fibers, but if necessary,
It is also possible to attach an elevating member 3a such as a fluid cylinder and move it up and down as shown by the dotted line.

Reference numeral 5 denotes a detector such as a phototube disposed at the rear of the gluing machine 1, which detects the presence or absence of the veneer 2, and moves the ruler 4 located at the position indicated by the dotted line to the position indicated by the solid line on the shaft 4a.
an operating mechanism 6 such as a fluid cylinder for temporarily swinging the conveyor 3, a reversible drive source for the conveyor 3, a drive mechanism 16 (to be described later), a lifting mechanism 20, and a lifting device 2.
1. A detection signal is sent to a controller (not shown) that controls the operation of the sliding mechanism 29 and the like.

Reference numeral 9 denotes a pricking member disposed above the ruler release position B, in which a large number of needle-shaped bodies 8 are implanted into a base 19 slidably inserted into the sliding groove 18a of the holding base 18. The drive mechanism 16 sticks the upper surface of the veneer 2 over the entire width in the direction orthogonal to the fibers of the veneer 2 by operating a lifting mechanism 20 such as a fluid cylinder based on the detection signal of the detector 5. By the operation of the ruler, the ruler is moved upward from the overlapping position A, which is set at a predetermined distance in the conveyance direction, from the ruler release position B, and in the direction perpendicular to the conveyance direction by the operation of the sliding mechanism 29. While moving the plate 2 above the overlapping position A, it is also moved in a direction perpendicular to the conveyance direction.

11 consists of a combination of the veneer 2 and other veneers (for example, front veneer, back veneer, vertical core veneer, etc.) 7, which are already deposited on the stacking table 12 at the superposition position A. It is an intermediate product made by

Reference numeral 16 denotes a drive mechanism such as a reversible electric motor, which slides the support frame 14 fitted on the rail 13 via a drive shaft 15a and a rotating member 15 such as a chain based on the detection signal from the detector 5. , the support frame 14
The pricking member 9 supported by is moved from above the ruler release position B to above the overlapping position A.

Reference numeral 17 denotes a veneer receiving member disposed opposite to the sticking member 9, and is positioned so that the surface of the needle-shaped body 8 having the relief groove 17a is slightly lower than the conveying surface of the conveyor 3, and The veneer 2 is raised and lowered by the operation of the lifting device 21 such as a fluid cylinder based on the detection signal 5, and the veneer 2 is supported and raised.
7a may be omitted, or if the conveyor 3 is configured to be moved up and down, it may be provided fixedly.

Reference numeral 29 denotes a sliding mechanism such as a fluid cylinder, which slides the base 19 via a lever 19a that freely moves within the relief hole 18b of the holding frame 18 based on the detection signal of the detector 5, and The pricking member 9 including the pricking member 19 is moved in a direction perpendicular to the transport direction, and a detector 30 to be described later is moved.
Based on the detection signal, the sliding of the base 19 is stopped, and one end of the veneer 2 in the direction orthogonal to the fibers is aligned with a predetermined matching line XX.

30 is a detector such as a phototube disposed at a position coincident with or adjacent to a predetermined alignment line XX, which detects the arrival of one end in the direction orthogonal to the fibers of the veneer 2, and A detection signal is issued to a controller that controls the operation of 29.

Reference numeral 32 denotes a striking bar installed near the piercing member 9, which is moved up and down by the operation of an actuating device 31 such as a fluid cylinder related to the operation of the drive mechanism 16, and is moved up and down to stab the piercing member 9. The attached veneer 2 is dropped onto the stacking table 12 at the overlapping position A, but it is also possible to separate it from the pricking member 9 and place it alone above the overlapping position A.

Note that the direction in which the adhesive member 9 is moved may be the direction of arrow a, as illustrated in the order of A → B in FIG. 7A, or the direction of arrow A, as illustrated in the order of A → B in FIG. 7B. There is no problem even if it is in the direction of arrow b, but even if the detector 30 detects the arrival of one end in the direction orthogonal to the fibers of the veneer 2 and abruptly stops the movement of the pricking member 9, the movement will be slightly caused by inertia. Since it is unavoidable that a deviation occurs, as illustrated in FIG. 8a or 8b,
It is preferable to arrange the detector 30 at a position separated from the predetermined matching line XX by a distance l1 corresponding to the deviation.

The supply method according to the present invention is carried out by applying, for example, a series of devices configured as described above,
When the veneers 2, which are taken out one by one from the stack 2a and coated with adhesive by the gluing machine 1, are conveyed forward on the conveyor 3 in the same direction as the fibers, the detector 5 eventually detects the passing of the rear end. is detected and a detection signal is issued, and based on the detection signal, the operating mechanism 6 swings the ruler 4 to the position shown by the solid line, and the conveyor 3, which rotates in reverse for a while, transports the veneer 2 backwards, so that the ruler is brought out to the position. At step B, the vertical ruler of the veneer 2 is set (in the example, on the rear end side), and the pricking member 9 is further moved by the operation of the elevating mechanism 20.
However, due to the operation of the lifting device 21, the veneer receiving member 17
move up and down, respectively, so that the pricking member 9 pricks the upper surface of the veneer 2 over the entire width in the direction orthogonal to the fibers of the veneer 2.

Next, as the drive mechanism 16 operates, the pricking member 9 moves in the transport direction, so the pricked veneer 2 is transported above the overlapping position A in the same direction as the fibers.
On the way, the pricking member 9 moves in a direction perpendicular to the transport direction due to the operation of the sliding mechanism 29, and the detector 30 eventually detects the arrival of one end in the direction perpendicular to the fibers of the veneer 2. When the signal is issued, the sliding mechanism 29 stops operating based on the detection signal, so the movement of the pricking member 9 is stopped and one end in the direction perpendicular to the fibers of the veneer 2 is aligned with the predetermined alignment line X-X. is positioned to match.

When the sticking member 9 reaches above the overlapping position A and the operation of the drive mechanism 16 is stopped, the actuating device 3
1, the knock-down bar 32 moves up and down, so the veneer 2 is dropped onto the stacking table 12 at the stacking position A and is stacked, and when the veneer 2 is removed, each member returns to its original position. Return.

Hereinafter, by repeating the same operation, the veneers 2 are successively superposed at the superposition position A, but first, the vertical ruler is placed at the ruler-out position without particularly restraining the veneer 2. It can be easily carried out as usual without any particular trouble.

Next, the veneer 2 with the vertical ruler placed at the ruler placement position
and the pricking member 9 are brought into contact with the veneer 2 all at once in the thickness direction and across the entire width in the direction perpendicular to the fibers,
The upper surface of the veneer 2 is stuck and held over the entire width in the direction perpendicular to the fibers of the veneer 2.

Generally, the cause of the vertical ruler twisting is uneven force applied to the vertical ruler direction or horizontal ruler direction of the veneer that has been taken out by the vertical ruler, or the difference in speed between the left and right sides of the conveyor band when conveying. Conceivable.

However, in the present invention, in the relationship between the veneer and the pricking member, since the veneer is brought into contact with the veneer all at once over its entire width in the thickness direction and in the direction orthogonal to the fibers, Contains no elements.

Next, in the present invention, since the veneer is transferred to the overlapping position while being stuck and held by the sticking member, the element of wrapping around the vertical ruler is also eliminated here.

Next is the horizontal ruler, which is used to position one end in the direction perpendicular to the fibers while being restrained in a reinforcing manner, so even if the ruler moves and stops abruptly, there are various problems like in the past. There is no risk of this being induced, and the feeding position can be corrected very efficiently and accurately, which is extremely effective in streamlining the plywood manufacturing process.

The embodiment illustrated in FIGS. 5 and 6 is an example in which a suction member is used in place of the sticking member in the previous embodiment, and a suction device 27 such as a fan is attached to the suction box 22. The suction member 10 consisting of the following is placed on the rail 23 via the fixed shaft 24, rollers 25, sliding bearing 26, etc., and moved to the ruler release position B by the operation of the drive mechanism 16.
It is configured to be able to be freely transferred from above to above the overlapping position A, and also to be freely movable along the fixed shaft 24 in a direction perpendicular to the conveyance direction by the operation of the sliding mechanism 29. However, other members used in the embodiments described above will be designated by the same reference numerals and detailed explanations will be omitted.

For example, even if a series of equipment configured as described above is used, the veneer 2 with a vertical ruler drawn out at the ruler drawing position B
The entire width of the upper surface of the veneer 2 in the direction orthogonal to the fibers is adsorbed by the adsorption member 10, and while being transferred to the superposition position A, one end in the direction orthogonal to the fibers is aligned with a predetermined alignment line and positioned. Is possible.

The embodiment illustrated in FIG. 9 and FIG.
This is an example in which the sticking member in the embodiment shown in FIGS. The pricking member 9 is stretched over the attached pulley 32a.
Intermittent drive mechanism 2 for electric motors with brakes, etc.
The pricking member 9 is configured to travel in any direction orthogonal to the conveying direction by the operation of the pricking member 9a. 33 in the figure is an endless band guide member attached to the holding table 18.

Even if the pricking member is configured as described above, it is possible to move the veneer from the ruler release position to the overlapping position in the same direction as the fibers, and in any direction perpendicular to the transport direction. The same functions and effects as the embodiments shown in FIGS. 1 to 4 can be achieved.

In addition, in the embodiments shown in FIGS. 1 to 4 and the embodiments shown in FIGS. 9 and 10, the pricking member is moved up and down, and only the veneer receiving member is moved up and down to stick the veneer. Alternatively, in the embodiment of FIGS. 5 and 6, the suction member can be
Alternatively, it can be modified so that it is raised and lowered together with the veneer receiving member.

Furthermore, in each of the above embodiments, a vertical ruler was provided on the rear end side in the transport direction of the veneer to be transported in the same direction as the fibers, but depending on the relationship with other veneers, etc. The conveyor may be swingably provided on the lower side of the conveyor, and the conveyor may be rotated in the normal direction at all times so that the front end side in the conveyance direction is provided with a vertical ruler.

Furthermore, in each of the above embodiments, the structure is such that the veneer is stuck or suctioned at only one point in the upper surface of the veneer over the entire width in the direction perpendicular to the fibers. It is also possible to arrange a plurality of members or suction members in parallel so that a desired part can be more stably and reinforcingly stuck or suction-held.

[Brief explanation of drawings]

The drawings are for explaining the present invention, and FIG. 1 is a plan view of a series of equipment used to carry out the present invention, FIG. 2 is a side view of FIG. 1, and FIG. A front explanatory view of the member, FIG. 4 is a sectional view taken along line A-A in FIG. 3, and FIG. 5 is a front explanatory view of the suction member.
FIG. 6 is a side explanatory view of an embodiment using an adsorption member;
Figures 7a, 7b, 8a, and 8b are plan explanatory views for explaining the positioning state of the veneer;
The figure is a front explanatory view of another embodiment of the sticking member, No. 10.
The figure is a sectional view taken along line A--A in FIG. 9. A...Polymerization position, B...Ruler release position, X-X
... Matching line, l1 ... Distance between detector and matching line, 1 ... Gluing machine, 2 ... Single plate, 3 ... Conveyor, 4 ... Ruler, 5 ... Detector, 6 ... Operating mechanism , 8... Needle-shaped body, 9... Sticking member, 10... Adsorption member, 12... Deposition table, 16... Drive mechanism, 1
7...Single plate receiving member, 18...Holding stand, 19...
Base, 20... Lifting mechanism, 21... Lifting device, 2
2... Suction box, 27... Suction machine, 29... Sliding mechanism, 30... Detector, 31... Actuating device, 32...
...Down bar.

Claims (1)

[Claims] 1. A ruler removal position where a ruler is placed at one end in the transport direction of a veneer veneer that is transported in the same direction as the fibers, an overlapping position that is separated by a predetermined distance in the transport direction from the ruler removal position, and a pricking member or an adsorption member. and at the same time, the plywood veneer with the ruler taken out at the ruler taken out position and the pricking member or the suction member are brought into contact all at once over the entire width of the veneer veneer in the thickness direction and in the direction perpendicular to the fibers. , the upper surface of the veneer veneer is stuck or suction-held over the entire width of the veneer veneer in the direction orthogonal to the fibers, and then the pricking member or suction member is transferred to the overlapping position, while Positioning of the veneer veneer, characterized in that the movement is stopped and the veneer veneer is positioned so that one end of the veneer veneer in the direction orthogonal to the fibers coincides with a predetermined alignment line. Supply method.