JPS59138409A - Winder for veneer - Google Patents

Abstract

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

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a veneer veneer (hereinafter referred to as a veneer) that has been shaved with veneer lace, particularly a veneer veneer that is shaved after the raw wood has reached a substantially perfect circle, and that is cut in the direction perpendicular to the fibers. This invention relates to a winding device for continuous strip-shaped veneer.

BACKGROUND ART Conventionally, as a winding device of the above type, Japanese Patent Application Laid-Open No. 52-12
As shown in No. 908 and JP-A No. 52-31809,
A touch roller that rotates at approximately the same speed as the cutting speed of the strip-shaped veneer that is continuous in the direction perpendicular to the fibers cut by the veneer lace, and a winder that is rotated by pressure contact of the touch roller and winds up the strip-shaped veneer. 2. Description of the Related Art A winding device that includes a reel and a pressure member that presses a touch roller against the winding reel is generally known. In this device, it is practically difficult to rotate the take-up reel at approximately the same speed as the cutting speed of the strip-shaped veneer, and when the speed of the take-up reel becomes lower than the cutting speed, A waving phenomenon occurs in the band-shaped veneer during the general transport up to the take-up reel. When the strip-shaped veneer is wound up in this state, the corrugated veneer portion is bent while being wound up, causing cracking and breakage. On the other hand, if the secondary rotation speed of the take-up reel is made higher than the cutting speed, the strip-shaped veneer will crack in the same way as described above due to the tensile force of the chain take-up reel caused by the speed difference.
causing a rupture. The above-mentioned cracks and breaks usually occur along the fiber direction of the strip-shaped veneer, and although they can be removed by cutting on the rear side, there is a problem in that the yield of the veneer decreases.

Purpose of the Invention In view of the above-mentioned conventional drawbacks, the purpose of the present invention is to wind up a strip-shaped veneer using a simple configuration without causing cracking or breakage even when the cutting speed and winding speed do not match. The purpose of the present invention is to provide a winding device for veneer veneer that is capable of winding up veneer.

Composition of the invention FIG. 1 is an explanatory diagram showing an outline of the present invention.

In the figure, the fixed length Jk cutting device 6 is cut by veneer lace,
Conveyor 1 for aligning strip-shaped veneers SL that are continuous in the direction perpendicular to the fibers
Based on the standard length signal B outputted from the standard size cutting position detector 13 attached to 2, the standard size cutting is performed every predetermined length U set in advance. Then, the alignment conveyor 12 was cut to a fixed length. 1 (The outer peripheral side of the take-up reel 22 that is rotated by the touch roller 14 driven at approximately the same speed as the alignment conveyor 12 after the cut veneer S2 is conveyed to the take-up position in close or nearly close contact with each other) Winding is performed while guiding the cut veneer S2 through the guide yarn 23.

Example Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 2 is an explanatory diagram showing this embodiment.

In the figure, the veneer lace l contacts the outer periphery of the raw wood 3 chucked by the spindle 2 (new moon 4), and the width in the direction perpendicular to the fibers is small at the initial cutting stage until the raw wood 3 becomes almost a perfect circle. A top-peeled veneer (not shown) having irregular portions on the front and rear ring edges, and a strip-shaped veneer Sl that continues in the direction perpendicular to the fibers after the log 3 has become a substantially perfect circle are shaved. Ha...1
This is a pressure bar that presses against the outer periphery of the log 3 at a location above the cutting blade 4.

The regular length cutting device 6 cuts the sheets of Ir+1 via a conveyor 7.
3- Anvil roll 8 connected to Yarace l and driven to rotate
A new moon 9 is mounted to a fixed length in the axial direction on the outer circumference above, and rotates once in approximately synchronization with the anvil roll 8 based on a fixed length signal B output from a fixed length cutting position detector 13, which will be described later. A limit switch or a photoelectric element, etc., which is attached to the carrying-in side of the driving cutting roll lO and n11 writing cutting roll lO, and which detects the strip-shaped veneer Sl carried in by the conveyor 7 and outputs the veneer detection signal A. single plate detector 1
1, without interrupting the conveyance of the strip-shaped veneer Sl,
The strip-shaped veneer S1 is cut to a fixed length.

The alignment conveyor 12 outputs an output from a limit switch attached to the upper blade of the conveyance surface or a fixed-length cutting position detector 13 such as a photoelectric element when the width of the carried strip-shaped veneer S1 in the direction perpendicular to the fibers reaches a predetermined length Q1. The cutting roll lO is driven one revolution based on the fixed length signal B, and the strip-shaped veneer S1 is cut to a fixed length. It is driven approximately synchronously with the anvil roll 8, and the cut veneer S2, which has been cut to a specified length, is closely connected to each other, or 4
- Transport is carried out in a nearly dense arrangement.

The touch roller 14 is rotatably supported on the tip side of a support holster (not shown) that is swingably attached to a shaft 15, and is attached to a pulley fixed to the shaft 15, on which a belt 16 is stretched. The alignment conveyor 12 has a diameter slightly smaller than that of the alignment conveyor 17.
It is rotated at a slightly higher speed than the conveyance speed according to the conveyance.

The pressure member 18 connects one end of the cable 20 to a halter 19 rotatably attached to the shaft 14a, and connects a weight 2 to the other end.
1 is attached, and the touch roller 14 is pressed against the circumferential surface of the take-up reel 22, which is rotatably supported above the touch roller 14, with a pressing force corresponding to the weight 21.

The guide yarn 23 is wound in a bobbin 24 arranged below the touch roller 14, and its tip is attached to the outer circumferential surface of the take-up reel 22 via a guide pulley 25. ), and guides the cut veneer S2 to be carried in to the outer circumferential side of the guide pulley 25.

Next, the operation of this embodiment will be explained with reference to FIG.

After the log 3 has reached a substantially perfect circle, the strip-shaped medium plate S1 cut by the veneer lace 1 is conveyed to the fixed length cutting device 6.
The strip-shaped veneer S1 is carried onto an alignment conveyor 12 that is driven based on a veneer detection signal A output from a veneer detector 11. When the length of the strip-shaped veneer S1 carried to the alignment conveyor 12 in the direction perpendicular to the fibers reaches a predetermined length, the cutting roll lO is set to the fixed length! i [1i Driven one rotation based on the fixed length signal B output from the position detector, the strip-shaped veneer Sl
cut to a fixed length without interrupting its conveyance. After the strip-shaped veneer Sl carried in by repeating the above operation is cut to a predetermined length every predetermined length Ql, they are aligned and conveyed on the alignment conveyor 12 in a state close to each other or close to each other.

The touch roller 14, which is driven to rotate at a speed slightly higher than the conveyance speed of the alignment conveyor 12, rotates the take-up reel 22 that is pressed against it, and guides the cut veneer s2 carried in by the guide yarn 23. Winding is performed while being guided to the outer circumferential side of the winding reel 22 which is rotated. At this time, the touch roller 14 is rotated at a speed slightly higher than the conveyance speed of the alignment conveyor 12, and the take-up reel 22 is rotated, so the 1'Q breakage occurs during conveyance due to the tensile force caused by the speed difference. The wavy state of the plate S2 is corrected, and winding is performed while maintaining its flatness. Further, due to the speed difference, winding is performed while forming a slight gap E between the cut veneers S2 brought in in a close or nearly dense state.

Therefore, in this embodiment, the continuous strip-shaped veneer Sl is cut to a fixed length every predetermined length Q1, and the discontinuous state is actively formed to wind up the cut veneer S2. It is possible to prevent the waving phenomenon of the cut veneer S2 caused by the mismatch with the winding speed of the touch roller 14, as well as a decrease in the veneer yield due to cracking or breakage due to tensile force.

In this embodiment, the winding device is constructed with a rotary-type fixed-length cutting device 6, but the present invention is not limited to this embodiment. Like an analysis discriminator 7- The upper and lower rollers and the conveyance side of the upper and lower rollers can be rotated alternately in the vertical direction, and the cutting edge is brought into contact with the respective circumferential surfaces of the upper and lower rollers to cut to a fixed length. and a fixed-length cutting blade that performs discrimination, and are arranged in upper and lower stages corresponding to the rotational position of the fixed-length cutting blade, and are driven intermittently based on the rotational position of the fixed-length cutting blade. The configuration is such that a vertical alignment conveyor is provided, and strip-shaped veneers are wound up on the alignment conveyor, the alignment of which is regulated in a close or nearly dense state. Although the configuration is such that winding is performed by rotating at a speed slightly higher than the conveyance speed of the alignment conveyor 12, the gist of the present invention is not limited by the above matters; for example, the rotation speed of the touch roller is adjusted to By setting the speed approximately equal to the speed, even if the trailing edges of the cut veneer are somewhat shaped, it is possible to avoid cracking.

Furthermore, the present invention is a winding device provided with a reeling unit as shown in Japanese Patent Application Laid-Open No. 57-96802. A standard length J (cutting device) for cutting continuous strip-shaped veneers into predetermined lengths; A touch that rotates the take-up reel that is driven in substantially the same manner as the transport device that transports it to the winding position at an appropriate interval and the transport device No. 111, and is supported reversibly at the winding position No. 011. A simple +14 machine comprising a roller and a guide thread that guides the cut veneer carried in to the outer periphery of a winding reel to be rotated and makes it possible to wind it.
This veneer winding device is capable of winding a strip-shaped veneer without cracking or breaking even when the cutting speed and winding speed do not match.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the outline of the present invention, FIG. 2 is an explanatory diagram showing the present embodiment, and FIG. 3 is an explanatory diagram showing the winding state. In the figure, 1 is a veneer lace, 6 is a fixed length cutting device, 12 is an alignment conveyor as a conveying device, 22 is a take-up reel, 23
is a guide thread, Sl is a strip-shaped veneer, and S2 is a cutting veneer. Patent applicant Meinan Seisakusho Co., Ltd.

Claims (1)

[Scope of Claims] 1. A fixed length cutting device that cuts a strip of veneer veneer continuous in the direction perpendicular to the fibers cut by veneer lace into predetermined lengths, and a fixed length cutting device that cuts a strip of veneer veneer that is continuous in the direction perpendicular to the fibers cut by the veneer lace; a conveyance device that conveys the cut veneer veneers cut to length to a winding position in close or nearly close contact with each other, or at an appropriate interval; A touch roller that rotates a take-up reel that is rotatably supported, and a guide yarn that guides the cut veneer veneer carried in to the outer periphery of the take-up reel that is rotated and makes it possible to wind it. A veneer veneer winding device characterized by comprising: