JP2008106387A - Nonwoven fabric production apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a nonwoven fabric production apparatus enabling yarns to be wound up in high accuracy for a long period by supporting a plate-like member in sufficient rigidity, and as necessary, capable of making the centers of the mutually facing two sides of the plate-like member opposing the axial lines of rotating shafts respectively. <P>SOLUTION: The nonwoven fabric production apparatus 1 includes a first guide member 7 and a second guide member 8 rotatable around the axial lines of rotating shafts 5 and 6 respectively, and a first slider 11 and a second slider 12 slidable on the corresponding guide members respectively. In this machine 1, a square plate-like member 21 is set up so that the corners representing the diagonal positions thereof are swingable on the respective sliders. Thus, by positioning the plate-like member at a first posture position and by positioning the first slider at a first end X of the first guide member and the second slider at a second end Y of the second guide member, and by positioning the plate-like member at a second posture position and by positioning the first slider at the second end Y of the first guide member and the second slider at the first end X of the second guide member, yarns can be wound up on the two sides A or B of the plate-like member at the respective posture positions. For this machine 1, as the corners of the plate-like member can be supported on the first slider and the second slider respectively in sufficient rigidity, yarns can be wound up in high accuracy over a long period. <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 pivotably connected to the tip of the rotating shaft via a connecting shaft, and the two sides B of the plate-like member are connected to the axis of the rotating shaft. By arranging in the orthogonal 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 one corner portion connected to the tip end portion of the rotation shaft by a connecting shaft so as to be swingable. By rotating the plate-like member 90 degrees about the connecting shaft, the first posture position is obtained. The position with the second posture position is 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 wind up the yarn with a sufficient rigidity for a long period of time by supporting the plate member with sufficient rigidity, and if necessary, two opposite sides of the plate member. An apparatus for producing a non-woven fabric capable of making the central portion of each of them coincide with the axis of the rotation axis is provided.

That is, according to the first aspect of the present invention, the plate-like member is rotated around the axis while the two opposite sides A of the square plate-like member are positioned at the 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 In the nonwoven fabric manufacturing apparatus in which the plate-like member is rotated as the center and the yarn is wound around the two sides B,
The nonwoven fabric manufacturing apparatus includes a first guide member and a second guide member that are disposed in a direction orthogonal to the axis and are rotatably supported around the axis, and the guide members along the longitudinal direction thereof. A first slider and a second slider which are slidably attached to each other, and the plate-like member is attached to each of the sliders so that the corners serving as diagonal positions are swingable.
The first slider is positioned at a first end which is one end of the first guide member, and the second slider is positioned diagonally with respect to the first end of the first guide member. The plate member is positioned at the first posture position by being positioned at the second end of the member, and the first slider is positioned at the second end which is the other end of the first guide member, and The second slider is positioned at the first end of the second guide member that is diagonal to the second end of the first guide member, and the plate member is positioned at the second posture position. To do.

According to the above configuration, in a state where the plate-like member is located at the first posture position, the first slider is located at the first end which is one end of the first guide member, and the second slider is The first end portion of the first guide member is positioned at the second end portion of the second guide member that is located diagonally. And when switching a plate-shaped member from the said 1st attitude | position position to a 2nd attitude | position position, while moving a 1st slider to the 2nd end part which is the other edge part of a 1st guide member, a 2nd slider is moved, What is necessary is just to move to the 1st end part of the 2nd guide member used as the diagonal position with the 2nd end part of the said 1st guide member.
And since the corner | angular part which becomes the diagonal line position is supported by the 1st slider and the 2nd slider, compared with the conventional apparatus which supported the one corner | angular part, plate-like member has higher rigidity. Thus, the plate-like member can be supported by holding the yarn, so that the yarn winding accuracy can be maintained with high accuracy over a long period of time.
In addition, the first guide member and the second guide member need only be disposed in a direction orthogonal to the axis of the rotation shaft and pivotally supported around the axis, so that the plate-like shape is conventional. There is no need to connect the members so as to be swung around the rotating shaft. In other words, 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, and preferably the axis of the rotation axis is set at the center of the two sides A at the first posture position. And at the center of the two sides B in the second posture position. Thereby, the fluctuation | variation of the tension | tensile_strength of the thread | yarn wound up by a plate-shaped member can be made as small as possible, and the cutting | disconnection can be prevented.

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 rotary shafts 5 and 6 are arranged on the same straight line, and the first guide member 7 and the second guide member 8 are fixed to end surfaces of the rotary shafts facing each other so as to be orthogonal to the axis of the rotary shafts. It is. Accordingly, the guide members 7 and 8 are rotated around the axis line as the rotary shafts 5 and 6 rotate.

Brackets 7a projecting toward the second guide member 8 are provided at both ends in the longitudinal direction of the first guide member 7, and two pieces are provided between the brackets 7a along the longitudinal direction of the first guide member 7. Parallel guide rods 9 (only one is shown in the figure) are provided. Similarly, brackets 8a projecting toward the first guide member 7 are provided at both longitudinal ends of the second guide member 8, and two brackets 8a are provided along the longitudinal direction of the second guide member 8 between the brackets 8a. A parallel guide rod 10 is provided.
A first slider 11 is slidably provided on one guide rod 9 and a second slider 12 is slidably provided on the other guide rod 10. Each slider 11, 12 is a pair of brackets described above. Between 7a and 8a, it can move from the 1st end part X which is one edge part of each guide member 7 and 8 to the 2nd edge part Y which is the other edge part. .

The rectangular plate-like member 21 for winding the yarn is formed by combining four square bars having four cross-sections that form four sides into a square shape, and the corner portions that serve as diagonal positions are respectively connected to the connecting shaft. The sliders 11 and 12 are attached to the sliders 11 and 12 through 22.
FIG. 1 shows a first posture position in which two opposite sides A of the plate-like member 21 are parallel to the axis of the rotation shafts 5 and 6. In this state, the first slider 11 is positioned on the first guide member 7. The second slider 12 is located at the first end X which is one end, and the second slider 12 is a second position of the second guide member 12 which is diagonal to the first end X of the first guide member 7. Located at the end Y.
On the other hand, FIG. 6 shows a state in which the two sides B orthogonal to the two sides A facing each other of the plate-like member 21 are positioned at a second posture position parallel to the axis of the rotation shafts 5 and 6. In this state, the first slider 11 is positioned at the second end Y, which is the other end of the first end X of the first guide member 7, and the second slider 12 is positioned at the first guide X. The second end portion Y of the member 7 is located at the first end portion X of the second guide member 12 which is a diagonal position. 6 is different from FIG. 1 in that the first slider 11 is positioned at the second end Y of the first guide member 7 and the second slider 12 is positioned at the first end X of the second guide member 8. In this state, the plate member 21 is further rotated 180 degrees about the axis of the rotation shafts 5 and 6.

The plate-like member 21 is integrated with the guide members 7, 8, guide rods 9, 10 and sliders 11, 12 as the rotary shafts 5, 6 are rotated in the state of the first posture position or the second posture position. In the first posture position, the yarn is wound around two sides A of the plate-like member 21, and in the second posture position, the yarn is drawn over two sides B of the plate-like member 21. It can be wound up.
Although not shown, the yarn feeding device that supplies the yarn to the plate member 21 includes a reciprocating mechanism that reciprocates the yarn from one end to the other end of one side A or B of the plate 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.
At this time, the rotary shafts 5 and 6 are fixed to the central portions in the longitudinal direction of the guide members 7 and 8, respectively, whereby the axis of the rotary shafts 5 and 6 is the central portion of the two sides A at the first posture position. Similarly, it is also located at the center of the two sides B in the second posture position. Thereby, when winding the yarn over the two sides A or B, fluctuations in tension applied to the yarn can be made as small as possible.

Next, in FIG. 1, the support frame 3 that rotatably supports one rotary shaft 5 is provided so as to be movable back and forth along the axis of the rotary shaft 5. In order to move the support frame 3 forward and backward, a guide block 31 is fixed to the base 2, and rails 32 (only one is shown in the figure) on both sides of the guide block 31 so as to be parallel to the axis. The bottom of the support frame 3 is slidably engaged with both rails 32.
Although not shown, an air cylinder device is provided inside the guide block 31 as a driving means for moving the support frame 3 back and forth, and the support frame 3 is reciprocated by supplying and discharging compressed air to and from the air cylinder device. It can be activated.
The support frame 4 that rotatably supports the other rotating shaft 6 is provided with a servo motor 33 that rotationally drives the rotating shaft 6, and the servo motor 33 rotates the rotating shaft 6 in one direction. It is made to be able to.
The operation of the servo motor 33 is controlled by a control device (not shown), and the rotation position detecting means such as a tachometer (not shown) provided on either the servo motor 33 or the rotary shafts 5 and 6 The rotational angle position of the plate-like member 21 can be detected.

Extruding means 34 and 35 are provided on the second end Y side of the guide members 7 and 8 to push out the sliders 11 and 12 from the second end Y side toward the first end X side. is there. That is, in this embodiment, the side where the pushing means 34 and 35 are provided in each guide member 7 and 8 is the second end Y, and the side where the pushing means 34 and 35 are not provided is the first end X.
Since the push-out means 34 and 35 have the same configuration, one push-out means 35 will be described. As shown in FIG. 2, the push-out means 35 includes an air cylinder device 36, and the air The rod 36a of the cylinder device 36 protrudes and retracts toward the second slider 12, and at the time of the protrusion, the second slider 12 can be pushed out from the second end Y side toward the first end X side. ing.
A tube 37 for supplying compressed air to the air cylinder device 36 is, as shown in FIG. 1, a compressed air supply source via a passage 38 provided in the shaft portion of the rotary shaft 6, a rotary joint 39, and a solenoid valve (not shown). The compressed air can be supplied to the air cylinder device 36 when the electromagnetic valve is opened.

In the above configuration, the plate-like member 21 is in the state of the first posture shown in FIG. 1, that is, in the state where the two sides A facing each other are parallel to the axis of the rotary shafts 5 and 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. Further, as shown in FIG. 1, when the above-mentioned rotational position detecting means detects that the first slider 11 has reached the upper position, compressed air is supplied to the air cylinder device provided in the guide block 31. The support frame 3 is moved to the left in FIG.
As a result, as shown in FIG. 3, when the distance between the guide members 7 and 8 is increased, the first slider 11 has its first end X due to its own weight as the distance between the guide members 7 and 8 increases. Then, the first slider 11 reaches the second end Y (FIG. 4).
In this state, both the sliders 11 and 12 are located at the second end Y.

If the integral rotation of the guide members 7 and 8 and the plate-like member 21 continues from this state, both the sliders 11 and 12 are moved from the lower position to the upper position. If the second end portion Y of the first and second end portions Y is higher than the horizontal state, both the sliders 11 and 12 are moved toward the first end portions X of the guide members 7 and 8 by their own weight.
However, when the second ends Y of the guide members 7 and 8 are in a substantially horizontal state, the pushing means 35 on the second slider 12 side is actuated at the timing, and the second slider 12 is moved in the second guide member 8. The second end Y is pushed out toward the first end X. At the same time, the support frame 3 is operated by an air cylinder device (not shown), thereby narrowing the distance between the guide members 7 and 8, so that the first slider 11 is moved to the second end Y of the first guide member 7. While being held, only the second slider 12 is moved from the second end Y to the first end X of the second guide member 8 by its own weight (FIG. 5). One end X is reached (FIG. 6).

In this state, as described above, the plate-like member 21 is in the second posture position, and therefore, the rotation shaft 6 is rotated by the servomotor 33 with the two sides B facing each other being parallel to the axis of the rotation shafts 5 and 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.

Similar control is performed when the plate member 21 is converted from the second posture position to the first posture position. That is, when the plate-like member 21 is rotated 180 degrees from the state shown in FIG. 6, that is, when the second slider 12 is in the upper position, the distance between the guide members 7 and 8 is increased. The second slider 12 is moved from the first end X toward the second end Y due to its own weight, and eventually reaches the second end Y (see FIG. 2). The state of FIG.
Next, when the second end portion Y of the guide members 7 and 8 is almost horizontal in the previous time, the pushing means 35 on the second slider 12 side was actuated in view of the timing, but this time the first slider 11 is operated. The side pushing means 41 is actuated to push the first slider 11 from the second end Y toward the first end X of the first guide member 7.
At the same time, since the distance between the guide members 7 and 8 is reduced, the second slider 12 is held by the second end Y of the second guide member 8 and only the first slider 11 is moved by the first weight. The guide member 7 is moved from the second end Y toward the first end X, and eventually reaches the first end X of the guide member 7 (state shown in FIG. 1).
Therefore, in this state, the plate-like member 21 is in the first posture position, and thereafter, the same operation is repeated so that the plate-like member 21 is moved a plurality of times between the first posture position and the second posture position. The posture is switched, whereby the yarn is alternately wound around the two sides A and B of the plate-like member 21.

It goes without saying that the support frame 4 may be reciprocated instead of the support frame 3, and if the movement positions of both the support frames 3 and 4 can be controlled, the both frames 3 and 4 can be moved. A reciprocating operation may be performed.
In the above-described embodiment, the sliders 11 and 12 are reciprocated using their own weights. However, the sliders 11 and 12 may be reciprocated by a slider driving means such as a linear solenoid or a screw mechanism. . More specifically, for example, when a screw mechanism is used, one of the two guide rods 9 and 10 is used as a screw rod, and this is screwed to the sliders 11 and 12, and the servo motor is used. The sliders 11 and 12 can be reciprocated by rotating the screw rods. In this case, the pushing means 34 and 35 can be omitted, and the support frame 3 or 4 only needs to be able to reciprocate.
Further, in the above embodiment, the axes of the rotary shafts 5 and 6 are positioned at the center of the two sides A at the first posture position and at the center of the two sides B at the second posture position. However, it may be set anywhere as long as the strength of the yarn is high.

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 enlarged front view of the extrusion means 35. FIG. 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 intermediate | middle operation state different from FIG. 3 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 intermediate | middle operation state different from FIG. 3, FIG. 4 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 guide member 8 Second guide member 9, 10 Guide rod 11 First slider 12 Second slider 21 Plate member 22 Connecting shaft 34, 35 Extruding means 36 Air cylinder device

Claims (7)

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 first guide member and a second guide member that are disposed in a direction orthogonal to the axis and are rotatably supported around the axis, and the guide members along the longitudinal direction thereof. A first slider and a second slider which are slidably attached to each other, and the plate-like member is attached to each of the sliders so that the corners serving as diagonal positions are swingable.
The first slider is positioned at a first end which is one end of the first guide member, and the second slider is positioned diagonally with respect to the first end of the first guide member. The plate member is positioned at the first posture position by being positioned at the second end of the member, and the first slider is positioned at the second end which is the other end of the first guide member, and The second slider is positioned at the first end of the second guide member that is diagonal to the second end of the first guide member, and the plate member is positioned at the second posture position. Nonwoven fabric manufacturing equipment.   The first guide member and the second guide member are rotatably supported by a support frame, respectively, and at least one of the support frames is provided so as to be capable of moving forward and backward along the axis. Along with this, the first slider moves along the first guide member, and the second slider moves along the second guide member. The plate-like member is moved between the first posture position and the second posture position while being rotated about the axis by the first guide member and the second guide member,
The first slider is moved by its own weight from the upper end to the lower end as the first guide member is rotated, and the second slider is moved upward as the second guide member is rotated. The apparatus for producing a nonwoven fabric according to claim 2, wherein the posture is converted between the first posture position and the second posture position by being moved by the own weight from the end portion to the lower end portion. .   The first guide member is provided with first pushing means for pushing the first slider toward the other end, and the second guide member pushes the second slider toward the other end. The nonwoven fabric manufacturing apparatus according to claim 3, wherein two extrusion means are provided.   The non-woven fabric manufacturing apparatus according to any one of claims 2 to 4, further comprising drive means for moving the support frame forward and backward.   3. The nonwoven fabric manufacturing apparatus according to claim 2, further comprising slider driving means for moving the first slider and the second slider along each guide member.   The axis of the rotating shaft is located at the center of the two sides A at the first posture position and at the center of the two sides B at the second posture position. The manufacturing apparatus of the nonwoven fabric in any one of 6.

Images