JPH11314202A - Apparatus for ripping of veneer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a ripped veneer with good yield. SOLUTION: In an apparatus for ripping of a veneer 1 consisting of an alignment device for aligning veneers, a scarf cutting device, an adhesive applicator, a clamping device, a veneer pinching and moving device 11, a bonded veneer pinching and carrying device and a device for cutting the veneer in lengths, scale side end edge parts and opposite scale side end edge parts are aligned and the innermost position of the opposite scale side end edge parts is detected by means of an end edge sensor and a disc saw moving member 8M is made to reciprocate in the direction at right angles to the carrying direction of the veneer in such a way that a position set at a little more inside than the position detected by means of the end edge sensor can be scarf-cut.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention produces, for example, a parallel plywood formed by laminating and bonding a large number of sheets with the fiber direction oriented in the length direction of the product, or a long veneer laminated material commonly called LVL or LVB. The required length of veneer is about 1-4 mm and the length is about 1.5-6 m.
To obtain from a single veneer veneer of about 1 meter or a rectangular veneer of about 1 m x about 2 m, a number of rectangular or veneer veneers are vertically stripped in the fiber direction for laminated veneer. The present invention relates to a veneer veneer veneer for forming a long veneer veneer.

[0002]

2. Description of the Related Art As a conventional veneer veneer of this type, there is a technique disclosed in Japanese Patent Application No. 9-279681 filed on Sep. 25, 1997 by the present applicant.

[0003]

However, in the vertical veneer veneer veneer of the prior application as disclosed in Japanese Patent Application No. 9-279681, the front end or rear end of the veneer veneer in the transport direction and the transport direction. Is located on the unloading side of the aligning device consisting of a veneer detector and a conveyor and a ruler plate and a reciprocating device that align one end of the veneer veneer in a direction orthogonal to the transport direction of the veneer veneer. , The ruler side edge is directed upward, and the anti-ruler side edge is cut into a downwardly directed scarf slope to form a single scarf veneer, a pair of circular saws on both sides, and a circular saw moving member of these circular saws Although a scarf cutting device made of such as is provided, in such a scarf cutting device, when forming the scarf veneer, defective portions of both end edges of the veneer veneer are not left on the scarf cutting surface. And said Because we aligned outright with extra cutting each enters the inside than necessary both end edges of the Niya veneer, wasteful, the yield of the product is disadvantageously poor.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a vertical veneer veneer stripping apparatus which solves the above-mentioned problems, and has a ruler side edge and a counter-ruler side in the direction perpendicular to the veneer veneer transport direction. An alignment device for aligning the edges, and both sides of the veneer veneer in the direction perpendicular to the conveying direction, which are located on the unloading side of the alignment device, are cut upwards, and the other side is cut into a downwardly inclined scarf. A scarf cutting device including a veneer holding member, a circular saw, a circular saw moving member, and the like as a veneer, and an adhesive applied to an upwardly-facing scarf slope of the scarf veneer located on the carry-out side of the scarf cutting device. An adhesive application device,
A pressing device that presses the upwardly sloped surface with the adhesive applied to the downwardly facing scarf slope of the scarf veneer that is located on the carry-out side of the adhesive application device and is waiting to form a continuous band-shaped scarf bonded veneer; Located between the pressing device and the aligning device, the pressing device and the scarf cutting device, and between the scarf cutting device and the aligning device, near the central portion in the direction perpendicular to the transport direction, from above and below. The veneer veneer in the aligning device is sandwiched and sandwiched, and the veneer veneer in the aligning device is joined to the scarf cutting device, and the veneer veneer in the scarf cutting device is movable to the clamping device, and the clamping device is joined with the clamping device. A single veneer sandwiching / transporting device that clamps the front and rear of the joined scarf joint and transports it to the fixed-size cutting device side while nipping it by the length of the single scarf veneer, and a continuous band that is transported by the combined veneer single plate nipping / transferring device A veneer veneer veneer comprising a standard-size cutting device configured to cut a scarf-bonded veneer into standard lengths for each predetermined standard size, wherein the veneer veneer is provided at a required position on the counter-ruler side of the alignment device. Providing an edge sensor that detects the innermost portion of the veneer side edge of the veneer, so that the portion detected by the edge sensor or a portion set slightly inside the portion can be cut, The circular saw moving member of the scarf cutting device, the driving motor of the circular saw moving member, the edge sensor and the reciprocating device of the edge sensor are electrically connected to a control device, respectively.

[0005]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view showing an embodiment of the apparatus of the present invention. FIG. 2 is a side view showing a main part of the apparatus of the present invention, and FIG.
FIG.

[0007] In each figure, 1 is a veneer veneer,
A rectangular veneer veneer having a thickness of about 1 to 4 mm, a width and a length of about 1 m, or a rectangular veneer veneer of about 1 m x about 2 m. Incidentally, one edge of the veneer veneer 1 in the direction perpendicular to the transport direction, that is, a ruler-side edge 1L, is cut and aligned substantially parallel to the transport direction as shown in FIG. Reference numeral 2 denotes a supply device, which sequentially supplies veneer veneers 1 on the elevating table 4 one by one from the uppermost surface of the pile in the direction perpendicular to the fiber direction by, for example, an adsorption conveyor 3 or a stab conveyor.

In the present invention, the veneer veneer 1 can be directly supplied to an alignment device 7 described later by hand or other means without using the supply device 2.

Reference numeral 7 denotes a matching device, which is a veneer veneer 1 supplied from the supply device 2 and is conveyed while being supported from below by a conveyor 6, and is disposed at an appropriate position on the carry-out side on the conveyor 6. The sheet is conveyed until the front end 1F of the veneer veneer 1 is detected by 5F. When the single-plate detector 5F detects the front end 1F, the detection signal is transmitted to a control circuit such as a sequencer (not shown), and the conveyor 6 immediately stops. After the conveyor 6 is stopped, the reciprocating device 7S is first operated to bring the ruler plate 7L into contact with one end of the veneer veneer 1 in the direction perpendicular to the transport direction, that is, the ruler side edge 1L, thereby aligning it. (Refer to FIGS. 2 and 3.) Next, the reciprocating device 16A operates the other end of the veneer veneer 1 in the direction perpendicular to the transport direction, that is, the innermost position of the ruler side edge 1R. switch,
It is detected by an edge sensor 16 such as a line sensor. Further, the reciprocating device 7T is operated to operate the ruler plate 7R.
Abuts against and aligns with the side edge 1R of the ruler. (Figure 2,
In addition, a position detection signal detected by the edge sensor 16 is transmitted to a motor 8F of a circular saw moving member 8M of the scarf cutting device 8, which will be described later, and controls the operation of the motor 8F.

Next, the conveyor 6 is restarted, and the veneer detector 5R arranged at an appropriate position on the carry-in side on the conveyor 6 stops at the position where the rear end 1B of the veneer veneer 1 is detected, thus completing the alignment. Things.

Reference numeral 8 denotes a scarf cutting device.
And the ruler side edge 1L of the veneer veneer 1 aligned by the alignment device 7 is directed upward,
The side edge 1R on the side opposite to the ruler is obtained by cutting a scarf downward to obtain a scarf veneer 1S. This scarf cutting device 8
A pressing bar for fixing the left and right sides of the veneer veneer 1 at the time of cutting, and veneer holding members 8A and 8B including a reciprocating device for raising and lowering the pressing bar;
Circular saws 8C and 8D for cutting, and L capable of reciprocating the circular saws 8C and 8D in the transport direction and the reverse direction of the transport direction.
Circular saw moving members 8M and 8N including a rail and a motor such as an M guide (trade name) are arranged in a pair on the left and right.

The amount of scarf of the veneer veneer 1 is adjusted by adjusting the angles of the circular saws 8C and 8D for cutting, and the thickness is generally about 2 to 6 times the thickness. It is set appropriately.

The circular saw moving member 8M for cutting the scarf downward is connected to a motor 8F that is capable of reciprocating in a direction perpendicular to the direction of transport of the veneer veneer. The motor 8F has an edge sensor 16 that detects the innermost position of the edge 1R on the opposite side of the ruler in the direction perpendicular to the transport direction of the veneer veneer 1. The position detected by the edge sensor 16 A signal that allows a position set slightly inside to be cut is transmitted through the control circuit 17.

Reference numeral 9 denotes an adhesive application device, which is located on the carry-out side of the scarf cutting device 8 and is disposed above the side where the upward scarf slope of the scarf cutting device 8 passes. A detector such as a photoelectric switch (not shown) is provided on the carry-in side of the adhesive application device 9 and is selectively applied by a detection signal of the detector, or a recovery tank is provided below. Continuous application may be performed by circulating. The adhesive to be used is selected as needed, and a thermoplastic adhesive such as hot melt or a thermosetting adhesive such as urea resin, melamine resin, resorcinol resin is applied.

In this case, needless to say, an applicator to which a cooling device or a heating device is added according to the properties of each adhesive is selected.

Reference numeral 10 denotes a pressing device, which is located on the carry-out side of the adhesive coating device 9 and is provided with a scarf veneer 1C on the downward slope of a continuous belt-shaped scarf veneer 1C which is in a standby state.
The reciprocating device 10S for contacting the upward scarf slope on which the adhesive of S is applied is actuated, and the pressing bar 10B is used for a predetermined time, for example, 0.5 to 1 in the case of a thermoplastic adhesive such as hot melt. It is joined by cooling and pressing for 2 seconds.

In the case of the thermosetting adhesive, a pressing time of several seconds to several tens seconds is required as a whole. Therefore, if time is required in the process, a single pressing device 10 may be provided. If time is not available, it is a matter of course that a plurality of pressing devices 10 may be prepared and divided and pressed.

Reference numeral 11 denotes a single-plate holding / moving device. The aligning device 7 completes the aligning operation of the ruler side edge 1L and the rear end 1R, or performs a cutting operation by the scarf cutting device 8 which is performed in parallel. When finished, the veneer veneer 1 and the scarf veneer 1S are vertically moved by the veneer sandwiching members 11A and 11C by operating the reciprocating devices 11B and 11D disposed vertically and in the vicinity of the center in the direction orthogonal to the transport direction. And the connecting member 11E is held by the reciprocating device 11F including a rail member such as an LM guide and a motor in the sandwiched state.
The veneer veneer 1 at the predetermined position is transferred to a predetermined position of the scarf cutting device 8, and the scarf veneer 1S at the predetermined position of the scarf cutting device 8 is transferred to a predetermined position of the pressing device 10. Next, the veneer veneer 1 is clamped from above and below so that the veneer veneer 1 is not displaced by the veneer veneers 1A and 8B while the clamped state is maintained. Presses the scarf veneer 1S from above and below so as not to be displaced.

In this way, each single plate 1, 1S
When the position becomes incapable of causing displacement, the respective reciprocating devices 11B and 11D are moved back to release the clamping,
The alignment device 7 and the scarf cutting device 8 return to their original positions, and return to predetermined positions to prepare for the next pinching movement.

Reference numeral 12 denotes a joining single-plate sandwiching / transporting device. A sandwiching device 12P having a well-known structure for sandwiching from above and below while holding the joining portion joined by the press-clamping device 10 from above and below to prevent displacement of the joining portion. Reciprocating device 12M comprising an LM guide and a motor, etc.
To form a continuous strip-shaped scarf veneer 1C into a scarf veneer 1S
Is moved toward the fixed-size cutting device 13 described later by the length L.

Reference numeral 13 denotes a standard-size cutting device, not shown, which is a continuous band-shaped knife operated by a standard-size cutting signal from a standard-size cutting control circuit formed by a combination of a single-plate detector including a photoelectric switch and a counter. Scarf veneer 1C
Is cut to a fixed size to obtain a fixed size veneer 1T.

Reference numeral 14 denotes a stacking device,
The continuous strip-shaped scarf veneer 1C that has passed through is received by the gate bar 14G from below and continued to be conveyed. Are brought into contact with each other and aligned, and then the reciprocating device 14S is operated to open the lower surface and sequentially fall and deposit on the elevating table.

Incidentally, the deposition apparatus 14 may be omitted as necessary.

[0024]

As described in detail above, the veneer veneer vertical stripping device according to the present invention, when scarf-cutting both edges of the veneer veneer in the direction perpendicular to the transport direction, is provided with an edge on the side opposite to the ruler. The innermost position is detected by the edge sensor each time, and the position set slightly inside the position detected by the edge sensor is scarf-cut. There is an effect that the edge portion and the edge portion on the side opposite to the ruler are not cut excessively more than necessary, so that there is no waste and the product yield is extremely good.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the device of the present invention.

FIG. 2 is a side view showing a main part of the device of the present invention.

FIG. 3 is a plan view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Veneer veneer 1B Back end of veneer 1 1C Continuous strip-shaped scarf veneer 1F Front end of veneer 1 1L Ruler side edge 1R Anti-ruler side edge 1S Scarf veneer 1T Standard size veneer 2 Supply device 3 Suction conveyor or piercing conveyor 4 Lifting table 5F Single plate detector 5R Single plate detector 6 Conveyor 7 Alignment device 7L Ruler plate 7R Ruler plate 7S Reciprocating device 7T Reciprocating device 8 Scarf cutting device 8A Single plate clamping member 8B Single Plate holding member 8C Circular saw for cutting 8D Circular saw for cutting 8E Line screw 8F Motor 8M Circular saw moving member 8N Circular saw moving member 9 Adhesive coating device 10 Pressing device 10B Pressing bar 10S Reciprocating device 11 Single plate holding and moving Device 11A Single-plate holding member 11B Reciprocating device 11C Single-plate holding member 11D Reciprocating device 11E Connecting member 11F Reciprocating device Location 12 bonded veneers clamping transfer device 12M reciprocating device 12P clamping device 13 the fixed-length cutting device 14 deposition apparatus 14B stopper 14G gate bar 14S reciprocating device 15 pinch rolls 16 edge sensor 16A reciprocating actuator 17 control circuit

Continuation of front page (72) Inventor Masaru Okawa 5-1-1 Nittacho, Takahama-shi, Aichi Hashimoto Electric Industry Co., Ltd.

Claims (1)

[Claims] An alignment device for aligning a ruler-side edge and a counter-ruler edge in a direction perpendicular to the conveying direction of the veneer veneer;
The veneer veneer is located on the unloading side of the aligning device in both directions in the direction perpendicular to the conveying direction. A scarf cutting device including a saw and a circular saw moving member, an adhesive coating device that is located on the carry-out side of the scarf cutting device and applies an adhesive to an upwardly inclined scarf of the scarf veneer; and an adhesive coating device. A pressing device that presses an upward slope coated with an adhesive on a downward scarf slope of a waiting scarf veneer that is located on a carry-out side of a device and forms a continuous belt-shaped scarf bonding veneer; The clamping device and the scarf cutting device are located between the device and the aligning device, and the vicinity of the central portion in the direction perpendicular to the conveying direction between the scarf cutting device and the aligning device is vertically clamped and clamped. I A veneer clamping mobile device that is movable in the clamping device the scarf veneer in the veneer to the scarf cutting device and the scarf cutting device in the alignment device in figure,
A joining veneer clamping / transporting device for clamping the front and back of a scarf joint portion joined by the pressing device and transporting the scarf veneer to a fixed-size cutting device while retaining the length of the scarf veneer; A veneer veneer consisting of a continuous cutting device that cuts the continuous band-shaped scarf-bonded veneer into fixed-length units set in advance by a predetermined length. At a required position, an edge sensor for detecting the innermost part of the edge of the veneer veneer on the side of the counter ruler is provided, and the part or the part detected by the edge sensor is set slightly inside. The circular saw moving member of the scarf cutting device, the drive motor of the circular saw moving member, the edge sensor and the reciprocating device of the edge sensor are electrically connected to the control device so that the portion can be cut. did DOO longitudinal strip device veneer, wherein.