JP2719536B2 - Veneer veneer rewinding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial application field" The present invention automatically winds a veneer veneer ball cut by a veneer lace and wound on a reel at a winding position to a cutting device. It relates to a device for returning.

[Prior Art] Conventionally, as shown in FIG. 5, a veneer veneer 1 cut by a veneer race is provided with a winding ball 3 having an appropriate diameter on a take-up reel 2 which rotates by pressing against a side drive roll at a take-up position. And is temporarily stored in the wound ball stock area 4 or transferred as it is to the end of the wound ball stock area 4 by the transfer rack 5, and then at the rewinding position 6, After the shaft portion is supported on the reel receiver 8 fixed to the reel support 7, the touch belt 9 is brought into contact with the outer periphery of the wound ball 3 and rewinded, and is connected to the transport conveyor 11 of the veneer dryer 10 in the next step. Transport conveyor 12
Have been transferred to

That is, at the rewind position 6 of the upper ball stock area 4, usually, the relatively thin veneer veneer 1 for the original plate is rewound to the upper conveyor 11 of the veneer dryer 10 and is transferred. The empty take-up reel 2 after returning is returned from the upper rewind position 6 to the reel stock area 14 from the return rack 13 extending obliquely downward, and the lower rewind position 6
In general, a veneer veneer 1 for an intermediate plate, which is almost twice as thick as a veneer veneer 1 for an original plate, is rewound, and this is transported to a lower transport conveyor having a lower transport speed than the upper transport conveyor 11. The empty take-up reel 2 after rewinding is returned from the lower rewinding position 6 to the reel stock area 14 from a return rack 13 extending diagonally upward.

"Problems to be Solved by the Invention" However, the veneer veneer 1 unwound from the rewind position 6 is transferred onto the unloading conveyor 12 and falls almost under its own weight until it is stably conveyed. Very unstable.

At the time of this drop, for example, the upper relatively thin veneer veneer 1
In, it is easy to break the streaks that occur across the fiber direction, the dry cracked part, and in the lower one,
Since even a single log is wound with a veneer veneer 1 cut from a lower part, such as a sapwood, a core, etc., even if it has a thickness almost double that of the upper one, Similarly, there is a tendency to tear along the fiber direction.

Further, when the veneer veneer 1 having a small width is wound, it is easy to curl from the tip or to carry out eccentric conveyance while the ball is unwound from the wound ball 3 and falls under its own weight. Is interrupted.

Thus, when the veneer veneer 1 is torn, interrupted, or eccentrically conveyed, the operator needs to rewind the veneer veneer 1 or correct the conveyance state each time, Workability was significantly impaired.

On the other hand, at the time of rewinding the veneer veneer 1, the outer periphery of the lower half of the ball 3 is surrounded by a roller-attached chain, and the outer periphery of the upper half in the open state is wound around the touch belt 7 and the stab conveyor. A method of stably feeding the veneer veneer 1 with a return conveyor interposed has been attempted.

However, even in this conventional method, the step between the feeding position of the veneer veneer 1 and the carry-out conveyor 12 has not been eliminated, and the driving of the wound ball 3 is only the rewind conveyor, and the roller chain is simply Smooth feeding was prevented because it was not driven synchronously only by surrounding the lower half.

[Means for Solving the Problems] In view of the above description, the present invention is configured such that, at a veneer veneer rewind position of a reel support, a both-end trochanter portion of a take-up reel having a wound ball wound thereon is freely rotatable. Almost half of the winding-in side is opened, and almost half of the discharging side is tensioned by a plurality of rows of driving guide bands. The pulley shaft located at the position above can be swung with respect to the upper surface of the wound ball.
Or by directly connecting to the cutting position as it is and driving almost half of the wound ball, while feeding out the tip portion of the veneer veneer in the pulley axial direction located on the wound ball loading side,
It is to be cut by a cutting device.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. The components already described are given the same numbers and will not be described repeatedly.

A transfer rack 5 having a gentle descending gradient is installed toward a pair of left and right reel posts 7 installed at the end of the wound ball stock area 4, and a take-up reel on which the wound balls 3 are wound on the transfer frame 5. Two trochanters at both ends are mounted. Inside the pair of reel posts 7 located at the end of the transfer frame 5, a reel receiver 8 that supports the both-end trochanter part freely and freely is installed. A rewind position 6 is formed by installing a swingable reel presser 15 on the upper part of the child part. On the other hand, a return rack 13 for returning an empty take-up reel 2 from a position above the transfer rack 5 is connected to an upper portion of the reel stock area 14.

At a position surrounding the reel receiver 8, a plurality of rows of drive guide bands 17 are suspended endlessly around a plurality of pulley shafts 16 arranged at arbitrary intervals in the axial direction of the take-up reel 2. The wound ball 3 supported by the reel receiver 8 has a carrying-in side substantially half opened, and a carrying-out side substantially half outer circumference is surrounded by the drive guide band 17.

Of these pulley shafts 16, the pulley shaft 16 located above the wound ball 3 is freely movable toward and away from the upper surface of the wound ball 3 by an electric motor, a balance weight, a fluid pressure, and the like. , A pulley shaft 16 located above the wound ball 3 is connected via a connecting member 20 to a piston rod 19 of a swinging fluid cylinder 18 pivotally supported by the reel support 7, and is connected to the outer peripheral surface of the wound ball 3 upper portion. It is swingable. In order to keep the plurality of rows of drive guide bands 17 always in a tension state, any one of the pulley shafts 16 or the pulley shafts
A tension member such as a spring, a fluid pressure mechanism, or a balance weight is provided between the pulleys 16, and one pulley shaft 16 is used as the balance weight 21 for convenience in the illustrated example.

Further, the linking conveyor 22 is laid over the pulley shaft 16 located on the side where the roll 3 is carried in, and is connected to the cutting position 24 via the relay conveyor 23 wrapped around the end of the linking conveyor 22. A continuously variable transmission 25 is connected between the relay conveyor 23 and the drive guide band 17 via a linking conveyor 22 to synchronize the two feed speeds.

When the veneer veneer 1 at the leading end of the wound ball 3 is fed in the opposite direction to the side where the wound ball 3 is loaded, the winding position of the wound ball 3 A feed-out separation mechanism is installed to prevent the leading end of the veneer veneer 1 from rising as it moves. In FIG. 2, this feeding / separating mechanism is a feeding roll 26 with a needle, and this feeding roll 26 is connected to a piston rod 28 of a fluid cylinder 27 pivotally supported by the reel support 7, and the lower portion of the ball 3 At a plurality of rows of the drive guide strips 17 positioned at a predetermined position.

FIG. 3 exemplifies a suction hood 29 which is connected to an air discharging device (not shown) as appropriate, and which extends in the longitudinal direction and the transport direction of the wound ball 3. 1 is drawn out to the drive guide band 17 side. Further, instead of the suction hood 29, an air supply body 30 whose opening is directed to the feeding position of the veneer veneer 1 is installed at a side position where the roll 3 is opened, and compressed air is sent out. In this way, the free end of the veneer veneer 1 is prevented from being entrained. FIG. 4 shows an embodiment of the air supply body 30, according to which the chain wheel 31 fitted to the upper pulley shaft 16 constituting the drive guide band 17 and the connecting wheel 31 are shown. A chain 33 is suspended between a chain wheel 31 that is pivotally mounted on an arm 32 protruding from the member 20, and a nozzle 34 that swings with the rotation of the chain wheel 31 is moved in the longitudinal direction of the ball 3. We support all over.

In the drawing, reference numeral 35 denotes a pushing body which is interposed in the shaft portion and pushes the take-up reel 2 to the drive guide band 17, and a piston rod of a fluid cylinder 36 whose rear portion is pivotally supported by the reel support 7.
The rear portion is pivotally supported by a bracket 38 protruding from the reel support 7 near the rear portion.

 Next, the operation will be described.

When the take-up reel 2 on which the wound ball 3 is wound is mounted on the reel receiver 8 of the reel support 7, the drive guide is always kept in a tensioned state so as not to hinder the loading of the wound ball 3. The upper pulley shaft 16 constituting the belt 17 is moved to the position indicated by the two-dot chain line shown in FIG. 4 by the operation of the oscillating fluid cylinder 18, and the piston rod 37 is reduced by the operation of the fluid cylinder 36. From the two-dot chain line position to the solid line position, and the reel presser 15 also retracts its press surface upward.

In this state, the roll 3 temporarily stored in the roll stock area 4 is temporarily stopped by a tightening member such as a stapler, a rope, a tape, or the like.
Attach it up. At this time, the drive guide band 17 is always maintained in a tension state, the piston rod 37 is extended by the operation of the fluid cylinder 36, and the pushing body 35 is swung to the position indicated by the two-dot chain line with the pivot point of the bracket 38 as a fulcrum. Let's roll 3
Is pressed against the tension, the trochanter portions of both ends of the take-up reel 2 are supported on the reel receiver 8 in a freely rotatable manner, and thereafter, the displacement is prevented by the reel presser 15. After the operation of the reel presser 15, the pusher 35 is retracted to the position indicated by the solid line by the reverse operation of the above description.

Next, the upper pulley shaft 16 constituting the drive guide band 17
Is brought into contact with the upper part of the outer periphery of the ball 3 by the operation of the fluid cylinder 18 for swinging, the tightening member for tightening the ball 3 is removed, and the drive guide band 17 and the relay conveyor 24 are connected via the continuously variable transmission 25. Are rotated synchronously. Of the outer periphery of the wound ball 3,
At least a half of the carry-out side from the upper part to the lower part is surrounded by the drive guide band 17 at a plurality of locations in the axial direction, and the rotation is directly passive from each of the surrounding parts.

Accordingly, the wound ball 3 can enjoy driving around its outer peripheral portion from about half with the reel receiver 8 serving as a supporting point as a fulcrum. Further, the tip of the veneer veneer 1 that is unwound with the rotation is
The roll 3 is fed out toward the carry-in side of the wound ball 3 which is open on the drive guide band 17 as it is. When the fed veneer veneer 1 reaches the pulley shaft 16 located on the side where the roll 3 is loaded, the veneer veneer 1 is transferred to the relay conveyor 23 via the linking conveyor 22 and cut into fixed lengths by the cutting device 24. The veneer veneer 1 after the fixed-size cutting is once deposited and dried in a veneer roll dryer.

When the veneer veneer 1 is fed out, for example, if the leading end portion in the initial stage of rewinding is likely to be accompanied by the rotation of the ball 3 due to the curl state, the resin content, the water-containing state, and the like,
As shown in FIG. 2, the delivery roll 26 is protruded from each row of the drive guide band 17 for an arbitrary time, and the veneer veneer 1 at the leading end of the wound ball 3 is separated and delivered onto the drive guide band 17. Further, the needle portion of the feeding roll 26 is made to protrudely engage. still,
When the veneer veneer 1 is interrupted during the rewinding, a limit switch, a detector such as a photoelectric tube, etc. are appropriately disposed on the driving guide band 17 to detect this, and each time the feeding roll 26 is described as described above. Similarly, it protrudes for an arbitrary time.

If the suction roll 29 is replaced with the suction separation of the suction hood 29 in FIG. 3 and the interlayer separation by the compressed air from the air supply body 30 shown in FIG. Is obtained.

In the present embodiment, the unwound veneer veneer 1
Is connected to the cutting device 24 via the linking conveyor 22 and the relay conveyor 23.
Although it is conveyed upward, the cutting device 24 may be connected directly from the position of the pulley shaft 16 on the side of the drive guide band 17 on which the roll 3 is loaded.

[Effect] As described above, according to the apparatus of the present invention, at the veneer veneer rewind position of the reel support, the both ends trochanter portion of the take-up reel with the wound ball wound thereon is freely rotatably supported. Almost half of the take-up side is opened and almost half of the take-out side is suspended in tension by a plurality of rows of drive guide bands. Of the pulley shafts constituting the drive guide band, the pulley shafts are located at the upper part of the roll. Make the pulley shaft swingable with respect to the top of the wound ball,
In addition, a pulley shaft located on the side where the roll is loaded is connected to the cutting position via a relay conveyor or directly as it is, and the rewind direction of the veneer veneer from the roll is opposite to the rewind direction of the conventional device. By eliminating the step from the rewind position of the veneer veneer onto the unloading conveyor,
The drawbacks in the above-described conventional apparatus, that is, the streak caused by the step, the tear from the dry crack portion, or the disadvantage of curling from the tip and eccentric conveyance is eliminated, and the veneer veneer is cut to the cutting device. It can be transported stably.

In addition, the roller-equipped chain used in a part of the conventional apparatus merely surrounds the lower half of the wound ball, and the rotation of the wound ball is performed by a rewinding conveyor that engages only at one point on the outer peripheral portion. In the lower half of the wound ball surrounded by the roller-attached chain, when the veneer veneer is fed, the fiber direction is easily pulled or loosened, but according to the device of the present invention, The ball can be driven by a synchronizer at least about half of its outer peripheral portion with the reel support serving as a supporting portion as a fulcrum, and the tip of the veneer veneer unwound with the rotation is directly on the drive guide band. Is fed toward the loading side of the wound ball in the open state, and smooth feeding can be expected.

Further, when the leading end portion at the initial stage of the rewinding is likely to rise with the rotation of the wound ball, the feeding roll, the suction hood, the air supply, etc., depending on the curl state of the veneer veneer, the resin content, the water-containing state, etc. By using a body or the like together, separation and feeding can be promoted.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing one embodiment of the present invention, FIG. 2 is a partially cutaway side view showing another embodiment of FIG. 1, and FIG. 3 is another cutaway side view of FIG. FIG. 4 is a partially cutaway side view showing another embodiment of FIG. 2 showing an embodiment. FIG. 5 is a side view showing a conventional apparatus. 1 ... veneer veneer, 3 ... roll, 6 ... rewind position, 7 ... reel position, 8 ... reel receiver, 16 ... pulley shaft, 17 ... drive guide band, 23 ... relay conveyor , 24… Cutting position, 26… Feeding roll, 29… Adsorption hood, 30… Air feeder, 35… Pusher

Claims (4)

(57) [Claims] At a rewind position of a veneer veneer plate on a reel support, both end trochanter portions of a take-up reel having a wound ball wound thereon are freely rotatably supported, and almost half of the wound ball loading side is open. In addition, almost half of the carry-out side is suspended in tension by a plurality of rows of drive guide bands, and among the respective pulley shafts constituting this drive guide band, the pulley shaft located at the upper part of the wound ball is positioned with respect to the upper surface of the wound ball. A veneer veneer single-sheet rewinding device which is swingable and is directly connected to a cutting device via a relay conveyor or directly from a pulley shaft located on the side where a wound ball is loaded. 2. At the rewind position of a single veneer veneer of the reel support, the trochanter portions of both ends of the take-up reel with the wound ball wound thereon are freely rotatably supported, and almost half of the wound ball loading side is open. In addition, almost half of the carry-out side is suspended in tension by a plurality of rows of drive guide bands, and among the respective pulley shafts constituting this drive guide band, the pulley shaft located at the upper part of the wound ball is positioned with respect to the upper surface of the wound ball. Swivelable, and connected directly to the cutting device via a relay conveyor from the pulley shaft located on the side where the wound ball is loaded or directly as it is. A veneer veneer rewinding device, characterized in that a delivery roll with a needle is installed so as to be able to be pressed against the lower surface of a wound ball from between rows. 3. At the rewind position of the veneer veneer single plate of the reel support, both end trochanter portions of the take-up reel with the wound ball wound thereon are freely rotatably supported, and substantially half of the wound ball loading side is open. In addition, almost half of the carry-out side is suspended in tension by a plurality of rows of drive guide bands, and among the respective pulley shafts constituting this drive guide band, the pulley shaft located at the upper part of the wound ball is positioned with respect to the upper surface of the wound ball. Swivelable, and connected directly to the cutting device via a relay conveyor from the pulley shaft located on the side where the wound ball is loaded or directly as it is. An unwinding device for veneer veneer, wherein a suction hood is installed on a lower surface of a wound ball from between rows. 4. At the rewind position of a veneer veneer single plate of a reel support, both end trochanter portions of a take-up reel with a wound ball wound thereon are freely rotatably supported, and substantially half of the wound ball loading side is open. In addition, almost half of the carry-out side is suspended in tension by a plurality of rows of drive guide bands, and among the respective pulley shafts constituting this drive guide band, the pulley shaft located at the upper part of the wound ball is positioned with respect to the upper surface of the wound ball. It is swingable, and it is connected to the cutting position via a relay conveyor or directly from the pulley shaft located on the side where the wound ball is loaded, while the opening is opened at the side position where the wound ball is opened. A veneer veneer rewinding device, wherein an air supply body whose part is directed to a veneer veneer unwinding position is installed.