JPS6369601A - Winder for veneer - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Field of Application" The present invention is directed to veneer cut by veneer A-lace.
When winding up the 711 plate onto a winding reel smoothly and accurately, this device is designed to prevent the winding state of the bamboo shoot cane from progressing, which tends to occur during winding.

``Prior Art'' Conventionally, as shown in FIG. 6, a winding device for plywood A and veneer 1 uses a bobbin shaft 3 at the starting end of an incoming conveyor 2 as a fulcrum, and the terminal end swings downwards at -E. A side drive roll 5 is provided near the end of the pedestal 4 to be moved, facing the end pulley 6 of the carry-in conveyor 2 at an appropriate interval, and this side drive roll 5 is connected to a balancer connected to both sides of the pedestal 4 near the end. The weight of the weight 7 is used to press the take-up reel 8, and the applied rotational force drives the take-up reel 8 to wind the veneer veneer l, and as the diameter of the winding ball 9 increases,
A method has been adopted in which the rolling blade of the winding ball 9 overcomes the pressing force of the side drive roll 5, moves the side drive roll 5 downward t1, and winds up the ball in sequence.

"Problem to be solved by the invention" However, by using the weight of the balance weight 7,
In the method of pressing the side drive roll 5 against the take-up reel 8, a substantially constant pressing force is always applied to the take-up reel 8, and the winding reel 8 is driven by this pressing force.

Therefore, especially when the winding ball 9 is small, the pressing force becomes excessive and the cushioning effect of the veneer veneer 1 wound on the winding reel 8 is also small, so that the veneer veneer l does not crack during winding. This caused cracks and cuts, which lowered the yield.

Conversely, during winding, the pressing force becomes too small for the increased diameter of the rolled ball 9, and the cushioning effect of the veneer veneer l wound on the take-up reel 8 becomes excessive. 1 is folded and wound up in a folded state,
This results in fiber tearing during unwinding.

In addition, veneer veneer l cut by veneer lace
Immediately after cutting or during the conveyance, unevenness, waving, twisting, etc. occur unevenly due to the shrinkage of the fibers, and depending on the type of log, these may become noticeable, and on the delivery conveyor 2, one side Meandering conveyance that deviates to the opposite side is likely to occur, and as a result of this meandering state, the winding ball 9 is wound around the take-up reel 8, and if this state continues, either one of the plywood veneers If one edge collides with the reel support, or during rewinding, the veneer veneer l will be damaged.

In addition to the above-mentioned causes, the cause of this meandering may be that the fiber direction of the veneer veneer l is deviated from the cutting rotation center of the raw wood, or that the fiber direction of the veneer veneer l is deviated from the cutting rotation center of the raw wood, or that the fiber direction of the veneer veneer l is deviated from the center of cutting rotation of the raw wood, or that the fiber direction of the veneer veneer l is deviated from the center of cutting rotation of the raw wood, or that there is This is also due to the presence of uneven thickness.

"Means for Solving Questions 3" In view of the above, the present invention provides an inlet conveyor and a side drive roll that are arranged side by side on a pedestal, and a reel is mounted on a reel support that is erected at an extended position on both sides of the side drive roll. A receiver is attached to the reel receiver, and a take-up reel that rotates in pressure contact with the side drive roll is supported on the reel receiver, while one end of the suspension member is attached to a pressing fluid cylinder supported on each of the pair of reel supports. While the suspension member is suspended on both sides of the terminal end of the mount, the other end is attached to the reel support with a lifting device so that its support position is stepless, and the suspension member is further attached to the end of the carry-in conveyor. , a detector for steplessly detecting the amount of meandering of the veneer veneer in the direction of its extension is provided, and the terminal end of the frame is swingable with the starting end on the veneer veneer loading side as a fulcrum, and the amount of meandering is The support positions are individually displaced based on the following, and each time a meandering condition occurs during conveyance of a veneer veneer, the meandering condition is corrected.

``Example'' Hereinafter, an example of the present invention will be described based on the accompanying drawings, starting from the configuration. It should be noted that parts that have already been explained will be given the same numbers and will not be explained repeatedly.

On the output side of the veneer veneer 1111 of the veneer race 10, a mount 4 whose terminal end is a free end is provided with the starting end boolean shaft 3 as a fulcrum, and the veneer veneer discharged from the veneer race 10 is placed on this mount 4. a take-out conveyor 11 that relays l, and an in-take conveyor 2 linked to this take-out conveyor
and a side drive roll 5 are arranged in parallel.

At the axially extending position of the side drive roll 5, a pair of reel supports 12 connected to the reel deck are erected. I support it.

A pressing fluid cylinder 14 is carried in the opposite direction on the reel deck side of the reel support 8, and its piston rod 15
One end of a suspension member 17, such as a chain or a belt, suspended from a rotating wheel 16 such as a chain wheel or a boot supported on both ends of the pedestal 4 is attached to the tip of the frame 4, and other The end is connected to a lifting device I8 having the following configuration.

That is, as shown in FIG. 3, a pair of support plates 19 are installed on the reel support 8 at positions below the pressing fluid cylinder 14 and facing each other, and on these 19 support plates,
A guide body 2i that is driven by 200 rotations of a servo motor located adjacent to the guide body 2i is threadedly installed, and the lower end of this guide body 21 is connected to the other end of the suspension member 17.

In addition, as another embodiment of this elevating device 18, as shown in FIG. 4, a control fluid cylinder 22 is attached to the reel column 8 below the pressing fluid cylinder I4,
The tip of the piston rod 23 is connected to the suspension member I7.

Next, in front of the take-up reel 8 of the carrying-in conveyor 2, a detector 24 is arranged to scan a band-shaped area over a certain range from both ends thereof in an extension direction perpendicular to the conveyance direction of the veneer veneer l. , the amount of meandering of the veneer veneer l is detected at the blind stage, and this detection signal is linked to a shifting device 18 that places a tie on the opposite steel where meandering has occurred. Therefore, if the lowering device 18 is of the former type, it reads the sequentially transmitted detection signals and controls the servo motor 20 by the pulse encoder 25; The detection signal is output to the shaft encoder 26 attached to the piston rod 23 of the control fluid cylinder 22, and the meandering amount is detected by the piston rod 23.
It is made to correspond to the elastic layer of.

Note that 27 in the figure is a raw wood to be attached to the veneer lace IO.

Next, the action will be explained.

When winding up the continuous veneer veneer l cut from the log 27 with the veneer lace 10 and discharged, the take-up reel 8 is first fed from the reel return on the reel deck onto the reel receiver 13, and then the reel presser ( (not shown) to prevent the take-up reel 8 from floating, and then the piston rods 15 of the pair of pressing fluid cylinders 14 are contracted. Therefore, the mount frame 4 uses the starting end bobbin shaft 3 as a fulcrum, and its terminal end swings upward via the rotary wheel 16, thereby pressing the side drive roll 5 against the take-up reel 8.

Under this condition, the continuous veneer veneer l cut by the veneer lace 10 is supplied to the take-up reel 8 of the side drive roll 5'' through the take-out conveyor 11 and the carry-in conveyor 2, and is Start 0 winding.

If the conveyance state of the veneer veneer l is not deviated in any direction on the carry-in conveyor 2 and is almost straight, the carry-in conveyor t
-2 is not detected by the detectors 24 placed at both end positions,
Winding continues as is.

However, due to the reasons described above, as shown in FIG. 2, when one of the veneer veneers l begins to deviate (to the right in the conveying direction in the illustrated example! 1), the diameter of the wound ball 9 becomes The right side of the conveyance direction which is substantially offset and meandering is larger than the left side, and the veneer veneer l to be wound up is
The veneer veneer 1 is gradually drawn toward the right side where the diameter is larger, and on the left side in the conveying direction, the veneer veneer 1 is wound up with a bulge occurring just before it is wound up.

When this meandering state occurs, the amount of meandering is sequentially scanned by the detector 24, and this scanned detection signal is transmitted from the side where the meandering occurs and the side opposite to X4 (in the illustrated example, the left side in the conveyance direction). )>7 descending 312 position 1
8.

At this time, ν is lowered! 8 is constituted by a servo motor 20, the pulse encoder 25 is output in response to the sequentially transmitted detection signals to control the rotation speed of the servo motor 20, and the guide body 2! is spirally lowered to create a gap between the lower part of the winding ball 9 on the side and the upper part of the side drive roll 5 by an amount corresponding to the meandering amount of the veneer veneer l.

In addition, if the lifting device 18 is constituted by a control fluid cylinder 22, the read detection signal is output to the shaft encoder 26 that determines the current position of the piston [] horn 2, and is output according to the meandering amount. By regulating the flow of fluid according to the descending amount of the piston rod 23, a gap is created between the lower part of the winding ball 9 on the side and the upper part of the side drive roll 5 according to the meandering amount. It turns out.

Therefore, winding of the veneer veneer 1 is performed by driving the side drive roll 5 on the side where the meandering occurs, and on the other side, the veneer veneer 1 remains in the swollen state and the m gap is It passes through and is wound up. At this time, both sides of the diameter of the winding ball 9, that is, the diameter of the side where the meandering occurs and the diameter of the opposite side taking into account the gap, are almost the same. The phenomenon of pulling in either direction along the axis of the blade disappears, and the meandering is corrected.

In this way, each time a meandering condition occurs during winding of the veneer veneer l, the above-mentioned correction work is carried out steplessly according to the amount of meandering, and the winding ball 9 is wound in a bamboo shoot shape. As shown in FIG. 5, it is wound up in a generally straight shape, although both edges are slightly curled and silky.

In this embodiment, the detectors 24 each having a band-like area extending over a certain range are separately installed in the extending direction of both ends of the veneer veneer 1, but only at one end.
The detection 'a24 having twice the strip area may be placed at the center of the edge of the henia+B plate 1 and distributed to the inside and outside thereof. According to this method, if the veneer veneer l meanders toward the other end where the detector 24 is not present, the amount of meandering is controlled by the inner band of the detector 24. This is sequentially detected as a child presence confirmation signal, and the correction work as described above is performed.

"Effects" As described above, according to the present invention, the carry-in conveyor and the side drive roll are arranged side by side on the pedestal, and the reel receiver is attached to the reel supports erected at the extended positions on both sides of the side drive roll. A take-up reel that rotates in pressure contact with the side drive roll is supported on this reel receiver, and one end of the suspension member is connected to a pressing fluid cylinder supported on each of the pair of reel supports. While hanging the member on both sides of the terminal end of the pedestal, the other end is attached to the reel support with an elevating device so that its support position is stepless, and the member is further attached to the end of the carry-in conveyor in the direction of its extension. A detector for steplessly detecting the amount of meandering of the veneer veneer is installed in each case, and the terminal end of the stand is movable at t1 with the starting end on the veneer veneer loading side as a fulcrum, and the support position is adjusted based on the amount of meandering. Because each side is displaced separately, the pressing force on the side drive rolls can be adjusted arbitrarily, and each time a meandering condition occurs during conveyance of the veneer veneer, it can be corrected steplessly, and the bamboo-like winding condition can be adjusted. The progress can be made as narrow as possible, and both edges of the wound ball are almost straight.

[Brief explanation of the drawing]

FIG. 1 is a side view showing one embodiment of the present invention, and FIG. 2 is a side view showing one embodiment of the present invention.
3 is an enlarged cross-sectional view of the main part of the present invention, FIG. 4 is an enlarged side view showing another embodiment of the present invention, FIG. 5 is a detailed explanatory diagram of the present invention, and FIG. 6 is a side view of a conventional device. 1・φ・Plywood veneer, 2... Loading conveyor, 4...
Frame, 5...Side drive roll, 12 fist...Reel support,! 3... Reel receiver, 14...
Pressing fluid cylinder, 17... Suspension member, 18... Lifting device, 20.
... Servo motor, 21 ... Guide body, 22 ... Control fluid cylinder, 24 ... Detector,

Claims (1)

[Claims] 1. A carry-in conveyor and a side drive roll are arranged side by side on a pedestal, and a reel receiver is attached to the reel support provided at the extension position on both sides of the side drive roll, and a reel receiver is attached to the reel receiver. One end of a suspension member is connected to a pressing fluid cylinder that supports a take-up reel that rotates in pressure contact with the side drive roll, and is pivoted to each of the pair of reel supports, and this suspension member is connected to the mount. While hanging on both sides of the terminal end, the other end is attached to the reel column using a lifting device so that its support position is stepless, and a plywood veneer is attached to the end of the carrying-in conveyor in the direction of its extension. Detectors are installed to detect the amount of meandering in a stepless manner, and the pedestal is made swingable at the end with the starting end on the veneer veneer loading side serving as a fulcrum, and the supporting position can be moved individually based on the amount of meandering. A winding device for veneer veneer. 2. The winding of a veneer veneer according to claim 1, wherein the elevating device is configured by a guide body in which a servo motor attached to a reel support rotates in a spiral manner based on the meandering amount. Removal device. 3. In the lifting device, a control fluid cylinder attached to a reel support has a flow rate regulated based on the meandering amount, and expands and contracts the piston rod. Removal device.