JP3419933B2 - Veneer veneer lifting equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a veneer veneer lifting device.

[0002]

2. Description of the Related Art As a conventional veneer veneer (hereinafter referred to as veneer) lifting device, a device described in Japanese Patent Publication No. 54-16304 is known. The device has, for example, the structure shown in FIG. 1, and includes a push rod 6, a pair of auxiliary arms 2, 2a,
A pair of piercing arms 1 and 1a having a needle material B and a guide plate 7 slidable in the restriction member 6 are pivotally attached by shaft pins 3, 4, and 5 to form a frog-shaped link mechanism. ing. When the regulating member 6 presses the accumulated veneer from above, the needle material B pierces the veneer and then the lower end portion 7b of the guide plate 7 is pushed.
The puncture regulation surface A of the above press-contacts the upper surface of the single plate. When it is further pressed, both auxiliary arms 2 and 2a open outward with the shaft pin 5 as a fulcrum as the push rod 6 descends, and the piercing arms 1 and 1a also move the shaft pins 3 and 3 of the lower end portion 7b of the guide plate 7. As a center, turn each on the left and right. By turning the piercing arms 1 and 1a, the needles B at the tips of the arms 1 and 1a pierce the veneer, and the tips of the needles B approach each other to clamp the veneer from the left and right.

[0003]

However, such a conventional device has the following problems. That is, the push rod is linearly moved from above the deposited veneer to the upper surface of the veneer (direction of arrow Z in FIG. 2), and the veneer B is inclined with respect to the direction of the veneer. When the needle is pierced, the single plate is compressed and broken at the Y portion (see FIG. 2) of the needle material B, and a void H is generated. The so-called veneer is destroyed more than necessary.

The present invention has been made in order to solve such a problem, and an object thereof is to arrange the stacked veneers so that they can be moved up and down from the upper side to the surface layer of the veneers. A pair of arms having a claw, a pivotal attachment portion, and an abutment portion are pivotally attached to a mounting plate so that they can freely rotate in a direction in which the space between the claws is narrowed. An object of the present invention is to provide a veneer lifting device that does not damage the veneer more than necessary when piercing the plate. The base of the claw means a position displaced upward from the tip of the claw by about the thickness of one veneer.

[0005]

Specifically, in an apparatus for lifting a deposited veneer from the surface layer, the device is arranged so that it can move up and down from the upper side of the deposited veneer to the surface layer of the veneer. Mounting plate, an actuating member for moving the mounting plate up and down, a pair of arms each having a pivot portion, a lower end with a claw and an upper end with an abutting portion, and an arm that abuts the abutting portion of the pair of arms. Of the regulating member, which is provided to face the abutting portion so as to regulate the rotation of the cylinder, the regulating member cylinder in which the piston rod portion is attached to the mounting plate and the cylinder tube portion is attached to the mounting plate, and the operation of the operating member. And a controller for controlling the operation of the restricting member cylinder after the lowering of the mounting plate, and the pivoting portions of each of the pair of arms are pivotally attached to the mounting plate via different fulcrum shafts, and the mutual pivoting portions. Distance between arm pivots, between nail roots, and between nail tips Is pivotally attached to the mounting plate so as to become shorter in the order between the pivotally attached portions, between the bases of the claws, and between the tips of the claws, and to be freely rotatable in the direction in which the space between the claws becomes narrower. In the device for lifting a single plate (claim 1) and the device for lifting a stacked veneer from the surface layer, the mounting is arranged so as to be able to move substantially up and down from the upper side of the stacked veneer to the surface layer of the veneer. Plate, an operating member for moving the mounting plate up and down, a pair of arms each having a pivot portion, a lower end portion with a claw, and an upper end portion with an abutting portion, and an arm rotating by abutting on the abutting portion of the pair of arms. A restricting member provided to face the abutting portion so as to restrict movement, a restricting member cylinder in which the piston rod part is installed in the restricting member, and a cylinder tube part is installed in the mounting plate, and actuation and installation of the operating member. Control that controls the operation of the regulating member cylinder after the plate has been lowered And the pair of arms is so arranged that the distance between the bases of the claws and the tips of the claws becomes shorter in the order of the bases of the claws and the tips of the claws, and the distance between the claws becomes smaller. A veneer lifting device (claim 2), which is pivotally attached to a mounting plate so that the veneer can be swung in a vertical direction, and a device for lifting a deposited veneer from a surface layer. A mounting plate that is arranged to be movable up and down from the top to the surface of the single plate, an actuating member that moves the mounting plate up and down, and a pair having a pivoting portion, a claw at the lower end, and a contact portion at the upper end. Controller, which controls the operation of the actuating member, the arm, the restricting member that abuts on the abutting portion of the pair of arms, and is fixed to the mounting plate in opposition to the abutting portion so as to regulate the rotation of the arm. And a pivot portion of each of the pair of arms is pivotally attached to the mounting plate via different fulcrum shafts. , Further, the distance between the pivot joints of the arms, the roots of the nails, and the tips of the nails becomes shorter in the order of the pivot joints, the roots of the nails, and the tips of the nails, and the mutual nails become narrower. A veneer lifting device (claim 3) characterized by being pivotally attached to a mounting plate so that it can freely rotate in any direction; The mounting plate is arranged so that it can be moved up and down from the top of the veneer to the surface of the veneer, and the actuating member for moving the mounting plate up and down. A pair of arms having a pair of parts, a restricting member abutting on the abutting parts of the pair of arms and fixed to the mounting plate in opposition to the abutting parts so as to restrict the rotation of the arms, and actuation of the operating member. A pair of arms are provided with a controller for controlling the distance between the bases of the nails, and the distance between the tips of the nails depends on the distance between the bases of the nails. A veneer lifting device (claim 4), which is pivotally attached to a mounting plate so that the tips of the claws become shorter in order and can freely rotate in the direction in which the claws become narrower. , Is provided.

[0006]

[Operation] The mounting plate is linearly moved from above the deposited veneer toward the surface layer of the veneer, and the claw abuts against the veneer, and in the process of sticking, the pivot point of the arm is used as a fulcrum. The claw receives a moment from the plate, and the claw sticks into the veneer while rotating.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a single plate lifting device will be described below with reference to the drawings. 3 is a front view of the first embodiment, FIG. 4 is a process drawing of an arm when a nail is stuck, and FIG. 5 is a process drawing of a nail when a nail is stuck. In the figure, the single plate 9
Is a cross-sectional view (the broken line is omitted because the drawing is messy), and the fiber direction is orthogonal to the holding direction of the claw.

A mounting plate 11, which is vertically movable by a cylinder (not shown), which is an operating member, and a pair of arms 13 and 13a for holding a single plate have a thickness of the single plate to be held. Claws 17 and 17a of comparable length, stoppers 16 and 16a, and fulcrum hole 1 at a pivotal portion
2 and 12a and abutting portions 14 and 14a, and the fulcrum holes 12 and 12a of the arms 13 and 13a are rotatable with respect to fulcrum shafts 15 and 15a fixed to the mounting plate 11 and mutually. The claws 17 and 17a are attached so as to be freely rotatable in the direction in which they become narrow. Further, since the center of gravity of the arm 13 is on the left of the fulcrum shaft 15 and the center of gravity of the arm 13a is on the right of the fulcrum shaft 15a, the contact portions 14, 14a of the arms 13, 13a are in contact with the restricting member 18 described later. Further, in this state, the distance between the fulcrum holes 12 and 12a, the roots of the claws 17 and 17a, and the distance between the tips of the claws 17 and 17a are as follows:
The claws 17 and 17a are configured so as to become shorter in order between the tips.

Abutting portions 14, 14a of the arms 13, 13a
Member 18 that pushes to rotate the arms 13 and 13a
Is vertically movably regulated by a guide rail 19, and is rotatably attached to a rod of a regulating member cylinder 21 through a joint 23 so as to reciprocate vertically, and a cylinder tube of the regulating member cylinder 21. Is rotatably attached to the attachment plate 11. Further, it is configured with a controller (not shown) that controls the vertical movement of the mounting plate and the operation of the regulating member cylinder.

Next, the operation of the first embodiment constructed as described above will be described with reference to FIGS. 3, 4 and 5. The regulating member 18 moves upward, and the contact portions 14, 14 of the arms 13, 13a
a is in contact with the regulating member 18 due to the moment due to its own weight, and the mounting plate 11 is in the initial state of standing by above the deposited veneer.
The distance from the claws 17 and 17a to the surface layer of the veneer to be stabbed with the veneer 7 and 17a is adjusted by an appropriate detection device (not shown) on the lift table (not shown) accumulating the veneer. The height is controlled, and a distance shorter than the vertical stroke of the mounting plate 11 is always maintained by the thickness of one single plate. Further, a signal from the controller is appropriately set by a timer through a delay device (not shown) such as a timer, the time required for lowering and raising the mounting plate 11 and lowering and raising the regulating member 18. Output from the controller corresponding to the operation.

From the initial state, when a signal from the controller causes the mounting plate 11 to descend substantially linearly from above the deposited veneer in the surface layer direction of the veneer, the claws 17 of the arms 13 and 13a,
When the tip of 17a comes into contact with the surface of the single plate 9 as shown in FIG. 4-a, the state becomes a partially enlarged view of FIG. 5-a. Further, when the mounting plate 11 descends and the descending ends, the claw 1
7 and 17a pierce the veneer 9 and the stoppers 16 and 16a abut the veneer 9. As shown in FIGS. 5A to 5B, when the tips of the claws 17 and 17a come into contact with the single plate 9, the fulcrum shafts 15 and 15a are used as fulcrums to support the arm 1
A moment acts on 3, 13a, and as the mounting plate 11 descends, the claws 17, 17a pierce the single plate 9 while rotating in the direction of arrow P. As a result, the pawls 17 and 17a are stabbed while rotating from the position of the one-dot chain line E (see FIG. 5-a) to the position of the two-dot chain line J (see FIG. 5-b). Further, due to this rotation, a gap S (see FIG. 4-b) is formed between the contact portions 14, 14a of the arm and the regulating member 18. After all, the mounting plate 11 moves linearly, but the claws 17 and 17a pierce the single plate while rotating.

Next, after the lowering of the mounting plate 11 is completed, the regulating member cylinder 21 is actuated by the signal from the controller to lower the regulating member 18. As a result, the restricting member 18 pushes the abutting portions 14 and 14a of the arms, and further rotates the arms 13 and 13a, so that the claws 17 of the arm 13 and the claws 1 of the arm 13a.
The single plate 9 is sandwiched with 7a. That is, by pressing the contact portions 14 and 14a of the arms 13 and 13a with the restricting member 18, the veneers 17 and 17a hold the single plate 9 more reliably.

Subsequently, after the lowering of the regulating member 18 is completed, the mounting plate 11 is raised by a signal from the controller, and the claws 17 and 1 are provided.
The veneer 9 sandwiched by 7a is lifted. Next, the mounting plate 11
After the end of the ascending, the lifted veneer 9 is horizontally moved in a required direction by a signal from the controller, and the veneer 9 is transferred to another conveying device or the like. At the same time, the regulating member cylinder 21 is operated to raise the regulating member 18. Then, with a signal from the controller, the mounting plate 11 is returned to the original position and returned to the initial state. By repeating the above, the veneer is sequentially lifted.

According to the first embodiment, even if the claws 17 and 17a are inclined with respect to the linear movement of the mounting plate 11, the claws 17 and 1 can be moved.
Since the 7a rotates and pierces the veneer, the claws 17 and 17a do not break the veneer more than necessary.

FIG. 6 shows a second embodiment of the arm 13
b and 13c are rotatably attached to the mounting plate 11 by one fulcrum shaft 15 and freely rotatable in the direction in which the distance between the claws 17b and 17c becomes narrow. Further, in this state, between the roots of the claws 17b, 17c, the claws 17b, 1
The distance between the tips of the claws 7c is configured to be shorter in the order between the bases of the claws 17b and 17c and between the tips of the claws 17b and 17c. Since the other configurations and operations are similar to those of the first embodiment, the description thereof will be omitted.

In the first embodiment, the regulating member 18 is lowered at the time when the mounting plate 11 has finished lowering (FIG. 4 (b)), but at the same time, the claws 17 and 17a of the arm are the single plate 9. Since it is stabbed diagonally to the veneer, even if the mounting plate 11 is raised without lowering the regulating member 18, the single plate 9 is claws 17, 17
It can be lifted with a. Therefore, in the above-described first and second embodiments, appropriate means such as bolting to the mounting plate 11 (not shown) is used without using the regulating member cylinder 21 and without vertically moving the regulating member 18. You may fix it at. That is, in the initial state, even if the mutual claws 17 and 17a rotate in the closing direction, they do not rotate in the opening direction.

FIG. 7 shows a third embodiment, in which the arms 13d,
13e is not provided with the portions corresponding to the stoppers 16, 16a or 16b, 16c in the first and second embodiments, and the claws 17d,
Adjustment member 25 for regulating the amount of 17e stuck into the veneer
Is attached to the lower part of the mounting plate 11 as a separate body.
The thickness Y1 of the adjusting member 25 in the vertical direction is equal to that of the adjusting member 2
The length should be projected from the lower surface of No. 5 by the thickness of one veneer stabbed by the claws 17d and 17e. Other configurations and operations are similar to those of the first embodiment. With such a device, the thickness Y1 of the adjusting member 25 can be selected according to the thickness of the single plate.

FIG. 8 shows a fourth embodiment. In the third embodiment shown in FIG. 7, the fixed blade 27 is attached to the claw 17d of one arm.
The fixed blade 27 is provided on the adjusting member 25 so as to be provided between the adjusting member 25 and the claw 17e of the other arm.
Of the single plate 9 to be pierced from the lower surface of the. According to this configuration, when the veneer 9 is clamped by the claws 17d and 17e, the veneer 9 is likely to buckle, but the fixed blade 27 sticks into the veneer, so that the claws 17d and 17e are squeezed. The distance between the single plates 9 in the holding direction is reduced to about half, the buckling phenomenon is reduced, and the holding by the claws 17d and 17e becomes more reliable.

In FIG. 3, in the first embodiment, the center of gravity of the arm 13 is the left of the fulcrum shaft 15, and the center of gravity of the arm 13a is the fulcrum shaft 1.
Since it is on the right of 5a, the contact portion 1 of the arms 13, 13a
4, 14a are in contact with the regulating member 18, but the arm 1
3 and the arm 13a are connected to each other by using a tension spring (two-dot chain line in FIG. 3), the abutting portion 1 of the arms 13 and 13a.
You may make 4 and 14a contact | abut a regulation member. The strength of the spring may be set so that the pawls 17 and 17a can rotate by the action of a moment when the pawls 17 and 17a pierce the single plate 9. The configuration in which the tension springs bring the arms 13 and 13a into contact with the regulating member 18 may be applied to the second, third, and fourth embodiments.

In each of the above-mentioned embodiments, the stoppers 16, 16a, 16b, 16c or the adjusting member 25 are provided to pierce only one single plate, but the stoppers 16, 16a, 1
The following may be adopted without providing 6b, 16c or the adjusting member 25. For example, in the initial state of the mounting plate 11, the claws 17,
Alternatively, the distance from 17a to the surface layer of the veneer may be kept constant, and the signal from the controller may lower the mounting plate 11 by a set distance, and the claws 17 and 17a may stab one veneer. Alternatively, as illustrated in FIG. 9, the limit switch 29 is mounted on the bottom surface of the mounting plate 11 near the claws and the mounting plate 11 is lowered.
When one veneer 9 is pierced, the contact portion 29a of the limit switch 29 hits the veneer 9 and is attached at a position where the switch is turned on. When the single plate 9 is pierced and the limit switch 29 is activated, the activation signal is sent to the controller,
The lowering of the mounting plate 11 may be braked by a signal from the controller. Incidentally, it may be applied to all the above-mentioned embodiments.

As a modification of the arm claws, for example, as shown in FIG. 10 which is an enlarged view taken along the line AA of FIG.
Although the arms 13 and 13a are plate-shaped, as shown by dotted lines in FIG. 10, the arms 13 and 13a may be made thin and sharp from the roots of the claws 17 and 17a to the tips of the claws 17 and 17a.
Incidentally, it may be applied to all the above-mentioned embodiments.

[0022]

The device according to the present invention has a simple structure,
You can stab and lift the veneer without damaging it.

[Brief description of drawings]

FIG. 1 is a front view of a conventional device.

FIG. 2 is a partially enlarged view of FIG.

FIG. 3 is a front view of the first embodiment.

FIG. 4 is a process drawing of the arm when the nail of the first embodiment is pierced.

FIG. 5 is a partially enlarged view of FIG. 4 when the nail of the first embodiment is pierced.

FIG. 6 is a front view of the second embodiment.

FIG. 7 is a front view of the third embodiment.

FIG. 8 is a front view of the fourth embodiment.

FIG. 9 is a front view of a partially modified example of the first, second, third and fourth embodiments.

FIG. 10 is a modification example of the claws of the arm.

[Explanation of symbols]

11 ... Mounting plate 13, 13a ... Arm 14, 14a ... Abutting part 15, 15a ... Support shaft 17, 17a ... 18 ... ・ Regulating material 21 ... ・ Cylinder for regulating member

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65H 3/22 B25J 15/00 B27D 1/00 B65G 47/61 B65G 47/90

Claims (4)

(57) [Claims] 1. A device for lifting a stacked veneer veneer from a surface layer, wherein the mounting plate is arranged so as to be substantially vertically movable from above the stacked veneer veneer to the surface layer of the veneer veneer. An actuating member for moving the plate up and down, and a pivoting portion,
A pair of arms having a claw at the lower end and an abutting portion at the upper end, and a restricting member provided so as to abut the abutting parts of the pair of arms and restrict the rotation of the arms so as to face the abutting parts. When,
The piston rod portion is provided with a regulating member, the cylinder tube portion is attached to the mounting plate, and the regulating member cylinder is provided; and the controller for controlling the operation of the regulating member cylinder after the operation of the operating member and the lowering of the mounting plate are completed. , And the pivotal portions of each of the pair of arms are pivotally attached to the mounting plate via different fulcrum shafts, and the distances between the pivotal joint portions of the arms, between the bases of the claws, and between the tips of the claws are pivotal. Veneer veneer, which is pivotally attached to the mounting plate so that the space between the bases of the claws, the bases of the claws, and the tips of the claws become shorter in order, and the claws can freely rotate in the direction in which the space between the claws becomes narrower. Lifting device. 2. A device for lifting a stacked veneer veneer from a surface layer, wherein the mounting plate is arranged so as to be substantially vertically movable from above the stacked veneer veneer to the surface layer of the veneer veneer. An actuating member for moving the plate up and down, and a pivoting portion,
A pair of arms having a claw at the lower end and an abutting portion at the upper end, and a restricting member provided so as to abut the abutting parts of the pair of arms and restrict the rotation of the arms so as to face the abutting parts. When,
The piston rod portion has a regulating member, the cylinder tube portion has a regulating member cylinder attached to the mounting plate, and a controller for controlling the operation of the regulating member cylinder after the operation of the operating member and the lowering of the mounting plate are completed. , The pair of arms freely rotate in the direction in which the distance between the bases of the claws and the tips of the claws decreases in the order between the bases of the claws and the tips of the claws, and the space between the claws narrows. A veneer veneer lifting device, which is pivotally attached to a mounting plate so that the veneer can be lifted. 3. A device for lifting a stacked veneer veneer from a surface layer, wherein the mounting plate is arranged so as to be substantially vertically movable from above the stacked veneer veneer to the surface layer of the veneer veneer. An actuating member for moving the plate up and down, and a pivoting portion,
A pair of arms having a claw at the lower end and an abutting part at the upper end, and affixed to the mounting plate facing the abutting parts so as to abut the abutting parts of the pair of arms to restrict the rotation of the arms. And a controller for controlling the operation of the actuating member, and the pivots of each of the pair of arms are pivotally attached to the mounting plate via different fulcrum shafts, and the pivots of the mutual arms are also pivoted. The distance between the roots of the nails, the distance between the tips of the nails,
A veneer veneer lifting device, wherein the veneer veneer lifting device is pivotally attached to a mounting plate such that the tips of the claws are shortened in order and can be freely rotated in a direction in which the claws are narrowed. 4. A device for lifting a stacked veneer veneer from a surface layer, wherein the mounting plate is arranged so as to be substantially vertically movable from above the stacked veneer veneer to the surface layer of the veneer veneer. An actuating member for moving the plate up and down, and a pivoting portion,
A pair of arms having a claw at the lower end and an abutting part at the upper end, and affixed to the mounting plate facing the abutting parts so as to abut the abutting parts of the pair of arms to restrict the rotation of the arms. The pair of arms has a shorter distance between the bases of the claws and the tips of the claws in order from the base of the claws to the tip of the claws. A veneer veneer lifting device, wherein the veneer veneer lifting device is pivotally attached to a mounting plate so as to be freely rotatable in a direction in which the distance between the claws is narrowed.