JPS5822242A - Method and apparatus for winding single blank sheet - Google Patents

Abstract

PURPOSE:To prevent a single blank sheet from occurrence of cracks by increasing the space between a take-up shaft and an opposite roll as the winding diameter of the single blank sheet is increased without applying pressing force to the single blank sheet wound around the take-up shaft from the opposite roll. CONSTITUTION:The outer peripheral surfaces of touch roll portions 3 increasing the outer diameter as a take-up shaft 2 takes up a single blank sheet 1 to increase the winding diameter bear against portions of the take-up shaft 2 other than a take-up portion 2a. A roll 4 opposed to the single blank sheet 1 wound around the take-up shaft 2 is displaced integrally with the axis of the touch roll portions 3 so that the opposite roll 4 is spaced from the take-up shaft 2 increasingly as the winding diameter of the single blank sheet 1 wound around the take-up shaft 2 is increased. Thus the occurrence of troubles can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for winding a continuous material veneer, such as a rotary veneer, onto a winding shaft.

Conventionally, as shown in Fig. 1, a thin and long continuous material veneer (fl) cut out from raw wood (9) using an 0-tally lace (8) is conveyed by a balancer cooperator and then disassembled. The material veneer winding section (2 m) of the winding shaft (2) located above
The material veneer (1) was wrapped around it. At this time, the balancer Koshibae can rotate around the fulcrum (A), and the opposite
- Pressure is applied to the winding shaft (4)' by a weight or a cylinder, and the opposing roll (4Y) is pressed against the surface of the raw material veneer +11 being wound around the winding shaft (2). 2) As the material veneer (1) is wound up, the touch roller part (3) is pushed and moved by the reaction of the pressing force, and the balancer conveyor is gradually lowered. , There were frequent problems in which cracks occurred in the material veneer (1) (especially in the center) due to the pressing force of 4 tons.In particular, the problem was that cracks occurred in the material veneer (1) (especially in the center), which was thin and long. ) The trouble was severe.

The present invention has been made in view of the drawbacks of the conventional examples described above, and its purpose is to produce a material veneer without applying a pressing force to the material veneer wound around the winding shaft by opposing rolls. A method for winding a material veneer that allows the opposing roll to be separated from the winding shaft as the winding diameter increases, and allows the material veneer to be wound into an O-ru shape without causing cracks in the material veneer. and K, which provides the equipment.

Hereinafter, the present invention will be explained in detail with reference to the accompanying drawings. The shout is the winding shaft (
This is a balancer cosive bearer that transports the material veneer (1) toward
) side end can be rotated up and down. The winding shaft (2) is made of iron and is driven to rotate at an appropriate speed so as to wind up the material veneer + 1), and the central part of the winding shaft (2) is used to wind the material veneer (1). This is the material veneer winding section (2a) for taking off the material. The figure in the figure shows the winding mechanism located below the winding shaft (2). The first shaft fil and the second shaft (6) are rotatably attached to the upper and lower outer surfaces of both holders (1), respectively, and the first shaft (5) and the second shaft (6) As shown in FIG. 2, a flexible band (7) is wound between the two ends, and both ends of the band (7) are fixed to the first axis fi+ and the second axis (6), respectively.

Therefore, the touch roller part (3) is constituted by a band (7) wound around the first shaft (5). In the embodiment, a cloth material capable of absorbing 0.6 to 1.2 tons is used as the band (7). In addition, the opposing zero-rule (4) and the first shaft (6)
It's good to be integrated with , but it's also good to be separate. Thus, the opposing roll (4) is placed to face the lower surface of the material veneer winding portion (a) of the winding shaft (2), and the first shaft ( 6) The K-wound band (7) is rolled up on the winding shaft (the material veneer winding portions (2
Press the parts other than a) with an appropriate pressing force. In the preparation stage before winding the raw material veneer 11) onto the winding shaft (2), almost all of the band (7) is wound around the second shaft (6).
When the winding shaft (2) is rotated and the material veneer ill is wound onto the material veneer winding portion (2a) of the winding shaft (2),
The belt (7) pressed by the winding pongee (2) is the first
It is wound up on the shaft (6) (the first shaft is driven).

), Therefore, when the winding diameter of the material veneer +11 wound around the winding shaft (2) increases, the diameter of the first shaft fil K: the wound strip (7) also increases by the same amount, and the opposite roll(
4), even if the winding diameter of the raw material veneer fl) increases, it gradually separates from the winding shaft (2) without applying pressure to the raw material veneer fil. After winding up the material veneer (1),
What is necessary is to rotate the second shaft (6), rewind the band (7) onto the second shaft (6), and set it to the initial state.

The book shown in FIG. 4 is the other side of the invention, and the first axis (5)
and the second shaft (8) in the same direction, and
The axes i&) and the 42-axis fi+ rotate around the axis (!1) and swap positions. That is, when the winding of the material veneer (1) is completed and the band (7) is also all wound up on the first shaft (6), the first shaft 16 is ) and the two striped shafts (6) can be placed vertically or rounded, and the second shaft (6) side can be used as the touch zero part (3) to suppress the winding shaft (2) K and prepare for the next process as it is. This eliminates the need for unwinding the band (7). When the first shaft (5) and the second shaft (6) are alternated, the opposing rolls (4) may remain stationary, but there are opposing rolls (4) on both sides of the shaft (11). The winding may be performed so that the entire mechanism part is reversed around the shaft (11).

As described above, the present invention is a touch roller 4 in which the outer diameter increases as the material veneer is wound around the winding shaft and the winding diameter increases.
Touch the outer circumferential surface of the part to the part of the winding shaft other than the material veneer winding part, and touch the opposing wire facing the material veneer wound on the winding shaft as described above. As the winding diameter of the material veneer wound around the winding shaft increases, the facing roll is gradually separated from the winding shaft. The opposing roll can be gradually separated from the winding shaft as the winding diameter of the material veneer increases without applying pressure to the material veneer, which prevents cracks from occurring in the material veneer being wound. There are no advantages. Furthermore, the central part of the winding shaft is used as a raw material veneer winding part, a counter roll that can be freely approached and separated from the raw material veneer winder is opposed, and a rotatable first shaft and a rotatable roll are provided on both ends of the opposed roll. Two shafts are provided integrally with the opposing roll, one end of the flexible band is wound around the first shaft, and the other end is wrapped around the second shaft.
The band is wound around the shaft, and the band wrapped around one of the SL shaft or the second shaft is brought into contact with the parts outside the material veneer winding member at both ends of the winding shaft, so the band has flexibility. The touch roller part can be easily constructed by simply wrapping both ends of the body between the first shaft and the second shaft, and there is an advantage that the structure is simple.

[Brief explanation of the drawing]

8g1 is a front view of the conventional example, FIG. 2 is a partially cutaway perspective view showing an embodiment of the present invention, FIG. 3 is an enlarged partially cutaway front view of the same, and FIG. 4 is a partially cutaway perspective view of an embodiment of the present invention. It is a perspective view with a part cut away showing a side. +1)...Material veneer, (2)...Winding shaft% (
g")...Material veneer winding section, (3)...Yu/Shina 0-4 parts, (4)...Opposing roll, (5)...First
Axis, (6)...Second axis, (7)...Band body. Agent Patent Attorney Ishi 1) Chief 7Ill Figure 2

Claims (1)

[Claims] (1) The outer peripheral surface of the touch roll part, whose outer diameter increases as the material veneer is wound around the winding shaft and the winding diameter increases, is brought into contact with the part of the winding shaft outside the material veneer winding part. By displacing the facing roller facing the veneer of material wound on the winding shaft integrally with the axis of the touch roll part, the material veneer is wound on the winding shaft As the winding diameter of the raw material veneer increases, the opposing roller is moved from the winding shaft to the next position.
Wrapping of material veneer is a method characterized by spacing K. (!1 The central part of the winding shaft is the material veneer winding part, and the material veneer winding part is opposed by an opposing wire whose proximity can be freely adjusted.
Rotatable on both ends of the opposing roll! A first shaft and a second shaft are provided integrally with a facing roll, one end of a flexible band is wound around the first@, the other end is wound around the second shaft, and the first@
Alternatively, a device for winding a veneer material is characterized in that a band wound around one side of the IEa shaft is brought into contact with portions of the winding shaft outside the veneer material winding member at both ends.