JP2008169519A - Apparatus for producing nonwoven fabric - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for producing a nonwoven fabric, which supports a plate-like member with sufficient rigidity. <P>SOLUTION: The apparatus 1 for producing a nonwoven fabric includes revolving shafts 5 and 6 rotatably supported, an inclined shaft 9 that are arranged slantingly at a required angle relative to the axis of the revolving shafts and a plate-like member 21 rotatably attached to the inclined shaft. When the plate-like member 21 is rotated relatively to the inclined shaft and positioned at a first attitude position, a yarn is wound on the sides A of the plate-like member. When the plate-like member is positioned at a second attitude position, a yarn is wound on two sides B perpendicular to the two sides A of the plate-like member. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a non-woven fabric manufacturing apparatus, and more particularly to a non-woven fabric manufacturing apparatus that manufactures a non-woven fabric by winding a thread vertically and horizontally around a plate-like member.

Conventionally, as a non-woven fabric manufacturing apparatus, a plate-like member is rotated around the axis line with two opposite sides A of a square plate-like member positioned at a first posture position parallel to the axis of the rotation axis. In the state where the yarn is wound over the two sides A, and the two sides B orthogonal to the two sides A facing each other are positioned at a second posture position parallel to the axis, the axis is There is known one in which a plate-like member is rotated as a center so that a thread is wound around the two sides B (Patent Document 1).
In the nonwoven fabric manufacturing apparatus, one corner of the plate-like member is slidably connected to the tip of the rotating shaft by a connecting shaft, and the two sides B of the plate-like member are orthogonal to the axis of the rotating shaft. By arranging in the direction, the other two sides A are positioned at the first posture position parallel to the axis of the rotation axis.
On the other hand, when the plate-like member is positioned at the second posture position, the plate-like member is rotated by 90 degrees with respect to the rotation axis about the connection shaft, and the above-mentioned axis that has been orthogonal to the axis of rotation until now. The two sides B are positioned in the second posture position so as to be parallel to the axis of the rotation axis.
JP 2003-301362 A

The plate-like member has a corner portion pivotably connected to the tip end portion of the rotary shaft via a connecting shaft, and the first posture is obtained by rotating the plate-like member 90 degrees about the connecting shaft. The position and the second posture position are switched.
As a result, the plate-like member is supported by one corner, so that it is difficult to ensure sufficient strength, and the thread winding accuracy may decrease if the connection portion is loose due to long-term use. was there.
Of the two sides of the plate member, one side is close to the axis of the rotation axis and the other side is away from the axis of the rotation axis. Along with the rotation, the other side is rotated around the one side close to the axis of the rotation axis.
When the plate-like member is swung, the tension of the yarn wound around the plate-like member greatly fluctuates while the plate-like member is rotated once. In particular, the yarn is the collagen described in Patent Document 1 above. In a fragile yarn such as a thread-like material, there is a high risk of breaking due to fluctuations in tension.
In view of such circumstances, the present invention can support a plate-like member with sufficient rigidity, and if necessary, the central portions of two opposite sides of the plate-like member are arranged on the axis of the rotation axis. The manufacturing apparatus of the nonwoven fabric which can be made to correspond to is provided.

That is, the invention of claim 1
The plate-shaped member is rotated around the axis line with the two sides A facing each other of the rectangular plate-shaped member positioned at a first posture position parallel to the axis of the rotation axis. And the plate member is rotated around the axis while the two sides B perpendicular to the two sides A facing each other are positioned at a second posture position parallel to the axis. In the nonwoven fabric manufacturing apparatus in which the yarn is wound over the two sides B,
The nonwoven fabric manufacturing apparatus includes a rotating shaft that is rotatably supported, an inclined shaft that is disposed obliquely at a predetermined angle with respect to the axis of the rotating shaft, and the plate-like member that is rotatably provided on the inclined shaft. The plate-like member is rotated with respect to the tilt axis and converted into the first posture position and the second posture position.

According to the above configuration, since the plate member can be converted into the first posture position and the second posture position by rotating the plate member with respect to the tilt axis, one corner of the plate member is conventionally used. Compared with the case where the portion is pivotably connected to the tip end portion of the rotating shaft by the connecting pin, the rigidity can be greatly improved. Therefore, it is possible to maintain the yarn winding accuracy with high accuracy for a long time as compared with the conventional case.
In addition, since the rotation center of the rotation axis of the plate-like member can be set at a free position with respect to the plate-like member, it is preferable that the axis of the rotation axis is divided into two vertical bisectors of the two sides B at the first posture position. It can be positioned on the line and on the vertical bisector of the two sides A in the second posture position. Therefore, the fluctuation of the tension of the yarn wound by the plate-like member can be made as small as possible to prevent the cutting, thereby enabling stable winding.

Hereinafter, the present invention will be described with reference to the illustrated embodiment. In FIG. 1, the nonwoven fabric manufacturing apparatus 1 according to the present invention includes two support frames 3 and 4 erected on a base 2 at a predetermined interval. Rotating shafts 5 and 6 are rotatably supported on the respective support frames.
The rotating shafts 5 and 6 are arranged on the same straight line, and the first holding member 7 that extends radially outward at an angle of 90 degrees from the axis of each rotating shaft is disposed at the opposite end of each rotating shaft. A second holding member 8 is provided, and an inclined shaft 9 is provided obliquely at an angle of 45 degrees with respect to the rotary shafts 5 and 6 between the tip portions of the holding members 7 and 8.
At this time, the first holding member 7 and the second holding member 8 are arranged so as to protrude in opposite directions to each other, whereby the axis of the inclined shaft 9 makes an angle of 45 degrees with the axis of the rotary shafts 5 and 6. It is set to make.

The rectangular plate-like member 21 for winding the yarn is formed by combining four square-shaped rod-like bodies having four cross-sections that form four sides into a square shape, and the inclined shaft 9 is a diagonal line of the plate-like member 21. The plate member 21 is penetrated above.
The plate-like member 21 is rotatable with respect to the inclined shaft 9, and as shown in FIG. 1, two opposite sides A of the plate-like member 21 are opposed to each other by the locking means 22 provided on the inclined shaft 9. The plate-like member 21 can be fixed to the inclined shaft 9 at a first posture position that is parallel to the axes 5 and 6.

Further, the locking of the plate-like member 21 by the locking means 22 is released and the plate-like member 21 is rotated 180 degrees with respect to the inclined shaft 9, and the plate-like members 21 are opposed to each other as shown in FIG. The plate member 21 can be fixed to the inclined shaft 9 again by the locking means 22 at the second posture position where the two sides B orthogonal to the two sides A are parallel to the axis of the rotation shafts 5 and 6. ing.
At this time, the axes of the rotary shafts 5 and 6 are positioned on the vertical bisector of the two sides B at the first posture position, and similarly, the vertical bisect of the two sides A at the second posture position. It is located on the dividing line. Thereby, when winding a thread | yarn over the said 2 sides A or B, the fluctuation | variation of the tension | tensile_strength added to a thread | yarn can be made as small as possible.

  As the locking means, for example, a rotary actuator with a brake can be used. When the plate member 21 is converted between the first posture position and the second posture position, the brake is released and the rotary member is rotated. The plate-like member 21 may be rotated 180 degrees with respect to the inclined shaft 9 by an actuator, and a brake is applied at that position to fix the plate-like member 21 to the inclined shaft 9.

Either one of the rotating shafts 5 and 6 is linked to a servo motor (not shown) for rotating the rotating shaft 5 or 6, and the plate-like member 21 is in the state of the first posture position or the second posture position, 6 is rotated together with the holding members 7 and 8 and the inclined shaft 9. Therefore, the yarn can be wound around two sides A of the plate-like member 21 at the first posture position, and the yarn can be taken up across two sides B of the plate-like member 21 at the second posture position. It is like that.
The operation of the servo motor is controlled by a control device (not shown), and the rotation position detecting means such as a servo motor or a tachometer (not shown) provided on one of the rotation shafts 5 and 6 The rotational angle position of the plate-like member 21 can be detected.
Although not shown, the yarn feeding device for supplying the yarn to the plate-like member 21 includes a reciprocating mechanism for reciprocally guiding the yarn from one end to the other end with respect to one side A or B of the plate-like member 21. As a result, the yarn is reciprocated a plurality of times at regular intervals over the two sides A or B so as to be wound evenly.

In the above configuration, the plate-like member 21 is in the first posture position shown in FIG. 1, that is, in a state where the two sides A facing each other are parallel to the axis of the rotary shafts 5 and 6, the rotary shaft 5 or 6 and thereby winding the yarn over two sides A.
As described above, the yarn is reciprocated a plurality of times along the side A by the reciprocating mechanism of the yarn feeding device and uniformly wound around the plate-like member 21, thereby completing the winding of the yarn on the two sides A. A sensor (not shown) detects that the yarn has moved to one end of side A, that is, the reciprocating mechanism of the yarn feeding device has moved to one end.
In this state, the locking means 22 is actuated to release the fixation of the plate-like member 21 with respect to the inclined shaft 9 and the plate-like member 21 is rotated with respect to the inclined shaft 9 (FIG. 2). When the plate 21 is rotated 180 degrees with respect to the tilt shaft 9, the plate member 21 is fixed to the tilt shaft 9 by the locking means 22 (FIG. 3).

In this state, as described above, the plate-like member 21 is in the second posture position. Therefore, the servomotor causes the rotary shaft 5 or the two sides B facing each other to be parallel to the axis of the rotary shaft 5 or 6. 6, and the yarn is wound around the two sides B.
At this time, the yarn is supplied to the plate-like member 21 with the reciprocating mechanism of the yarn feeding device moved to one end, and the posture of the plate-like member 21 is converted from the first posture position to the second posture position. Then, the reciprocating mechanism of the yarn feeding device is activated again, and the yarn is reciprocated a plurality of times along the side B so as to be evenly wound around the plate member 21.

  Of course, the same control is performed when the plate-like member 21 is converted from the second posture position to the first posture position, and thereafter, the same operation is repeated and the plate-like member 21 is moved to the first posture position. And the second posture position are switched a plurality of times, whereby the yarn is alternately wound around the two sides A and B of the plate-like member 21.

Note that the one rotary shaft 5 and the holding member 7 may be omitted, and the plate-like member 21 may be supported in a cantilever manner by the other rotary shaft 6, the holding member 8, and the inclined shaft 9. Even in this case, since the plate-like member 21 is rotatably provided on the inclined shaft 9, one corner portion of the plate-like member can be swung to the tip end portion of the rotary shaft by a connecting pin as in the prior art. Compared with the case where it connects to, the rigidity can be improved significantly.
In the above embodiment, the axes of the rotary shafts 5 and 6 are positioned on the vertical bisector of the two sides B at the first posture position and on the vertical bisector of the two sides A at the second posture position. However, the present invention is not limited to this, and it may be set anywhere as long as the yarn strength is high. In this case, when the above-described cantilever type is used, the holding member 8 can be omitted and the inclined shaft 9 can be directly provided on the rotating shaft 6.

The front view which shows one Example of this invention and shows the state which the plate-shaped member 21 has become a 1st attitude | position position. The front view which shows the intermediate | middle operation state at the time of converting the plate-shaped member 21 from a 1st attitude | position position to a 2nd attitude | position position. The front view which shows the state which the plate-shaped member 21 has become a 2nd attitude | position position.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Nonwoven fabric manufacturing apparatus 3, 4 Support frame 5, 6 Rotating shaft 7 First holding member 8 Second holding member 9 Inclined shaft 21 Plate member 22 Locking means

Claims (5)

The plate-shaped member is rotated around the axis line with the two sides A facing each other of the rectangular plate-shaped member positioned at a first posture position parallel to the axis of the rotation axis. And the plate member is rotated around the axis while the two sides B perpendicular to the two sides A facing each other are positioned at a second posture position parallel to the axis. In the nonwoven fabric manufacturing apparatus in which the yarn is wound over the two sides B,
The nonwoven fabric manufacturing apparatus includes a rotating shaft that is rotatably supported, an inclined shaft that is disposed obliquely at a predetermined angle with respect to the axis of the rotating shaft, and the plate-like member that is rotatably provided on the inclined shaft. A non-woven fabric manufacturing apparatus, wherein the plate-like member is rotated with respect to the tilt axis and converted into the first posture position and the second posture position.   The rotating shaft is composed of two rotating shafts arranged in a straight line, each rotating shaft is provided with a holding member extending radially outward from the respective axis, and the inclined shaft is provided between the holding members. The manufacturing apparatus of the nonwoven fabric of Claim 1 characterized by the above-mentioned.   The said nonwoven fabric manufacturing apparatus is equipped with the locking means which fixes this plate-shaped member with respect to an inclination axis while rotating the said plate-shaped member 180 degree | times with respect to an inclination axis. The manufacturing apparatus of the nonwoven fabric of 2.   The plate-like member is square, and the inclined axis is provided at an angle of 45 degrees with respect to the axis of the rotation axis, and is provided on a diagonal line of the plate-like member. The manufacturing apparatus of the nonwoven fabric in any one of Claim 3.   The axis of the rotation axis is located on a vertical bisector of two sides B in the first posture position, and is located on a vertical bisector of two sides A in the second posture position. The manufacturing apparatus of the nonwoven fabric in any one of Claims 1 thru | or 4.

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