JPH0780577B2 - Plywood feeding device - Google Patents

Description

Detailed Description of the Invention

【Technical field】

The present invention relates to a method for reliably supplying a plurality of thin plywoods at a fixed number.

[Background technology]

The applicant of the present invention previously filed a patent application for Japanese Patent Application No. 61-148488 as "Ceiling Material Manufacturing Method and Apparatus".
This is done by alternately supplying the two plywoods whose decorative surfaces are superposed on each other with the back surface (adhesive surface) outside, and stacking the two crosspieces that form the skeleton, and adhering the plywoods and the crosspieces together. In this way, the ceiling material is manufactured, and the number of feeding operations of the plywood and the crosspiece assembly is reduced to improve the manufacturing efficiency of the ceiling material. Therefore, the plywood for supply is not loaded in the same direction, but the front and the back are alternately placed on top, that is, the front and the front are aligned, and the back and the back are aligned. From the above, two plywoods whose surfaces were contacted with each other were projected as a unit. However, the plywood has a smooth surface as a decorative surface, but the back surface is not finished to be smooth and is inferior in smoothness. It is slippery between two plywoods sent at the same time, and plywoods sent separately. There is a lot of friction between them, so simply sticking out as in the past would slip on the decorative surface and only one plywood would be supplied,
The back side was stuck and three or more plywoods were supplied, which caused trouble. In particular, when the decorative veneer is pasted on the surface of the plywood, the surface is sanded, and then the gloss coating is applied, the friction coefficient of the decorative surface becomes considerably small, so the above-mentioned problems were remarkable.

[Object of the Invention]

The present invention has been made in view of the above technical background, and an object of the present invention is to provide a method capable of reliably supplying a predetermined number of plywood sheets.

DISCLOSURE OF THE INVENTION

The method of supplying plywood of the present invention comprises a pressing plate 17 that comes into contact with the upper surface of laminated plywood 1, and a predetermined number of plywoods 1 attached to the pressing plate 17 and hooked with a predetermined number of plywoods 1 A plywood lifting machine 20 provided with hooking claws 18 for separating the plywood 1 and capable of moving up and down and moving in the feeding direction of the plywood 1, and a front end of a plurality of stacked plywoods 1 above the upper surface of the plywood 1. The protruding stopper 11 and the plywood 1 in the feeding direction are inserted into the lower surface of a predetermined number of plywoods 1 of the plywoods 1 stacked at a position facing the stopper 11 at the rear side in the feeding direction of the plywood 1. And a supporting arm 3 for supporting the stopper 11 at a position higher than the upper end of the stopper 11, and a plywood pushing machine 4 for feeding a predetermined number of plywoods 1 through the stopper 11. Since a predetermined number of plywoods 1 to be supplied are supported above the stoppers 11 by the support arm 3, when they are pushed out by the plywood pushing machine 4, they are pushed out without being obstructed by the stoppers 11, while the rest is not fed. Since the plywood 1 is blocked by the stopper 11, the plywoods 1 to be supplied are not supplied together, and the plywoods 1 separated by the support arm 3 are not stuck together and are not supplied together. Even if it is difficult to supply the plywoods 1 that are difficult to separate and the plywoods 1 that are easy to separate at the same time are supplied simultaneously, it is possible to reliably supply the predetermined number of plywoods 1. The pressing plate 17 that comes into contact with the upper surface of the plywood 1 and the plywood 1 attached to the pressing plate 17 are hooked with a predetermined number of plywoods 1 to separate the predetermined number of plywoods 1. Since it has the plywood lifting machine 20 that is provided with the hanging claws 18 and can be moved up and down and moved in the feeding direction of the plywood 1, the plywood lifting machine 20 is lowered to the upper surface of the plywood group 1 in which an appropriate number of sheets are stacked. Holding plate
By abutting 17 and then moving in the supply direction of the plywood 1, a predetermined number of plywood 1 can be hooked and separated by the hooking claws 18, and thus a predetermined number of plywood 1 can be separated. In addition, it can be easily performed without moving the pallet side on which the plywood 1 group is loaded, and the configuration for separating a predetermined number of plywoods 1 can be simplified. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Although a plurality of plywoods 1 are stacked on the table lifter 6 of the plywood feeding device 5 as shown in FIG. 1, they are not stacked in the same direction, but as shown in FIG. The front and back sides are matched by alternating the front and back sides, and the back and back sides are matched.When supplying, the front and back sides are separated to form a makeup surface. The two plywoods 1 in which the above and the above are put together are supplied as a unit.
The plywood feeding device 5 has a structure as shown in FIG. Above the stacked plywood 1, a plywood lifting machine 20 is provided in the center, and plywood pushing machines 4 are provided on both sides thereof. The plywood lifter 20 has its upper end pivotally supported.
A lifting plate 17 having a ski-like tip curved upward is rotatably attached to the tip of a rod 16 which can be moved in and out by a lifting cylinder 14 which is rotatably supported by a pressing plate. A hook 18 is provided on the lower surface of the rear end of the hook 17, and a predetermined number of hooks 18 (2 in the illustrated example).
The size is such that it can be hooked on the lower surface of the rear end of the plywood 1 and lifted. Further, the plywood extruder 4 has two supply cylinders 7 arranged above the table lifter 6, and the upper end of the supply cylinder 7 is rotatably supported by a pivot portion 8, and the tip of the rod 9 of the supply cylinder 7 is rotatably supported. Press plate 10 with its tip curved upward in a ski shape
Is attached rotatably, and the plywood feed claw 2 is extended forward from the lower surface of the rear end of the pressing plate 10. The plywood feeding claw 2 can be pushed out by hooking the rear end of a predetermined number of plywoods 1 on the lower surface of the pressing plate 10. That is, the plywood supply claw 2
The distance a between the lower surface of the plywood and the lower surface of the pressing plate 10 is almost equal to the sum of the thickness b of the two plywoods 1 and the half of the height c at which the plywood 1 is lifted by the support arm 3 ( a≈b + c /
2) When the plywood 1 lifted by the support arm 3 is pushed by the plywood feed claws 2, it is possible to reliably prevent single or triple picking. Further, a stopper 11 is provided at the front end portion of the stacked plywood 1 so as to project above the stacking height of the plywood 1. The height of this stopper 11 can be changed by an elevating cylinder 19. It has become. Further, in front of the stopper 11, there are provided pinch rolls 12a, 12b capable of grasping and delivering two plywoods 1, and the stopper 11 is elevated to a position higher than the pinch rolls 12a, 12b, or pinched. Rolls 12a, 12b
It is designed to go down below. Further, behind the stacked plywood 1, a reversing cylinder 13 is provided so as to face the position of the stopper 11 in the supply direction of the plywood 1, and the reversing cylinder 13 holds the base end of the support arm 3. The support arm 3 can be horizontally rotated by driving the reversing cylinder 13. As shown in FIG. 1, when the support arm 3 is perpendicular to the supply direction, the support arm 3 is disengaged from above the stacked plywood 1, and conversely, the support arm 3 is rotated 90 degrees by the reversing cylinder 13 so that the support arm 3 is removed. When parallel to the supply direction of the plywood 1, the support arm 3 faces the stopper 11 on the stacked plywood 1 and projects in the supply direction. In addition, it is preferable that the surface of the support arm 3 has a slippery property. The support arm 3 is provided at substantially the same height as the pinch rolls 12a and 12b. Also, plywood 1 loaded on the table lifter 6
Is provided with a level detecting phototube 21 at a side thereof, and when a predetermined number of plywoods 1 are supplied to lower the plywoods 1 on the table lifter 6, this is detected and the table lifter 6 is raised accordingly. It is a thing. Then, when the rod 16 of the lifting cylinder 14 is extended, the pressing plate 17 of the plywood lifting machine 20 rides on the back surface (upper surface) of the top plywood 1 as shown in FIG. Further, when the rod 16 is lifted up and contracted into the cylinder 14, the hooking claw 18 is caught on the rear end portion of the two plywoods 1 and tries to push the two plywoods 1 forward. However, the front end of the plywood 1 is pinch roll
Since it is stopped by the stopper 11 protruding above 12a and 12b, when the rod 16 contracts, the plywood 1 cannot move forward, so that the lifting cylinder 14 rotates upward as shown in FIG. The center of the rear end of the plywood 1 is lifted by the hooking claw 18 to form a bulged space between the plywood 1 and the lower plywood 1 as shown in FIG. In this way, the rear ends of the two plywoods 1 are lifted to form a space between them and the plywoods 1 below, and then the support arm 3 that has been disengaged from the top of the plywoods 1 is rotated 90 degrees by the reversing cylinder 13 As shown in FIG. 5, the central part is inserted into the space between the plywood 1 and the plywood 1 below. After that, when the rod 16 is extended to the initial position, the force applied to the two plywoods 1 is reduced and the two plywoods 1 are supported on the support arms 3 as shown in FIG. After that, when the stopper 11 is lowered by the elevating cylinder 19, as shown in FIG. 7 and FIG.
11 is set so that its upper end is located below the pinch rolls 12a and 12b and the support arm 3 and above the upper surface of the plywood 1 which is not supplied. Therefore, the plywood 1 horizontally supported by the support arm 3 is located above the stopper 11 and faces the pinch rolls 12a and 12b.
Next, when the supply cylinder 7 of the plywood extruder 4 is driven to retract the rod 9, the plywood 1 is pushed forward by the plywood feed claws 2 hooked at the rear end of the plywood 1, as shown in FIG. Since the plywood 1 on the support arm 3 is located above the stopper 11, it is supplied to the front pinch rolls 12a and 12b through the stopper 11, and is pinched by the pinch rolls as shown in FIG. Although the plywood 1 on the table lifter 6 has its front end stopped by the stopper 11, the plywood 1 on the support arm 3 is not supplied. After the plywood 1 is supplied, the stopper 11 rises above the pinch rolls 12a and 12b to close the entrances of the pinch rolls 12a and 12b, and the support arm 3 pivots in the original direction to come off the top of the plywood 1, The cylinder 7 of the plywood extruder 4 extends and returns to the initial state as shown in FIG. It should be noted that the two plywoods whose outer surfaces are the same as each other on the decorative surfaces as described above are alternately supplied to and stacked on the stacking portion together with the two crosspiece assemblies. Since an adhesive is applied to the outer surface of the body assembly (the upper surface of the upper assembly and the lower surface of the lower assembly), two plywood boards and two
When the body and the body assembly are alternately supplied and stacked, the plywood is bonded to the surface of the body assembly and the ceiling material is formed in a state where the front and back are alternately inverted.

【The invention's effect】

According to the present invention, since the predetermined number of plywoods supplied as described above are supported above the stopper by the support arm,
When extruded by a plywood extruder, it is extruded without being obstructed by the stopper, while the remaining unsupplied plywood is obstructed by the stopper, so that the plywood to be supplied is not supplied together and is separated by the support arm. They don't stick together and aren't supplied together,
Even if it is difficult to supply plywood that is easy to separate and plywood that is easy to separate at the same time, it is possible to reliably supply a predetermined number of plywood, especially on the upper surface of the stacked plywood. Equipped with a pressing plate that abuts and a hooking claw that is attached to this pressing plate and that hooks a predetermined number of plywood from the stacked plywood to separate the predetermined number of plywood. Since it has a plywood lifting machine made, the plywood lifting machine is lowered to bring the pressing plate into contact with the upper surface of the plywood group where a suitable number of sheets are stacked, and then move in the feeding direction of the plywood, so that it is hooked. A predetermined number of plywood can be hooked and separated with a claw, and thus a predetermined number of plywood can be separated easily without moving the pallet side on which the plywood group is loaded. Nau it can, and those that can be configured to simplify for the separation of a predetermined number of plywood.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an embodiment of the present invention, FIGS. 2 to 11 are explanatory views of the operation of the same, FIG. 12 is a partially enlarged view showing a stacked plywood plate of the same, and FIG. It is operation | movement explanatory drawing of the plywood supply nail same as the above. 1 ... Plywood, 3 ... Support arm, 4 ... Plywood extrusion machine, 11 ... Stopper, 17 ... Holding plate, 18 ... Hooking claw, 20 ... Plywood lifting machine.

Claims (1)

[Claims] 1. A pressing plate that abuts an upper surface of stacked plywood, and a hooking claw that is attached to the pressing plate and that hooks a predetermined number of plywoods on the stacked plywoods to separate the predetermined number of plywoods. A plywood lifting machine that is provided so as to be able to move up and down and move in the feeding direction of the plywood, a stopper that protrudes above the upper surface of the plywood at the front ends of the stacked plywood, and the stopper at the rear of the plywood supply direction. Supporting arms that enter the lower surface of a predetermined number of plywood among the stacked plywood at opposing positions to support the predetermined number of plywood at a position higher than the upper end of the stopper in the feeding direction of the plywood, and a predetermined number of plywood. A plywood feeding device, comprising: a plywood pushing machine for feeding the plywood through a stopper.