JP2000303312A - Cloth moving type apparatus for forming pile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a mechanism for changing the position of a cloth moving member in the front and rear directions and enhance the responsiveness. SOLUTION: This apparatus 10 for forming piles comprises a pair of shaking levers 42 and 44 having a guide part extending in the nearly same direction, a connecting unit 46 engaged with both guide parts so as to be movable in the longitudinal direction of the guide parts in both the guide parts and mutually connected to the shaking levers 42 and 44 and a moving mechanism for moving the connecting unit 46 in the longitudinal direction of the guide parts from both the shaking levers 42 and 44. Either one or both of the shaking levers 42 and 44 respectively have shaking fulcra in sites on the one side and the other side in the longitudinal direction of the guide parts from the guide parts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cloth moving pile forming apparatus for moving at least a woven cloth.

[0002]

2. Description of the Related Art A terry loom for weaving a woven cloth having a pile like a towel generally has a so-called first pick position where a weft is beaten before weaving to form a pile (that is, a reed where a weft is beaten before weaving). The reed and the weaving position, and a so-called loose pick position for moving the weft to a position spaced from the weaving position (that is, a blanking position or a half-beating position where the weft is driven backward from the weaving position). A pile forming device for changing the positional relationship is provided.

As one of such pile forming apparatuses, there is a cloth moving technique in which a woven cloth is moved with respect to a reed by a cloth moving member (Japanese Patent Laid-Open No. 5-156546). This prior art includes a swing lever connected to a cloth moving member at one end, a drive mechanism reciprocated in synchronization with a main shaft of a loom, and a slide ring connecting the drive mechanism to the other end of the swing lever. It has.

In the above prior art, the swing lever is swung by a reciprocating motion of the drive mechanism, and the cloth moving member is referred to as the warp running direction (in the present invention, the running direction of the warp is referred to as the "front-back direction"). ) To move to the first pick position and the loose pick position.
As a result, before weaving, it is moved to the first pick position and the loose pick position.

In this type of pile forming apparatus, the pile height (that is, the pile length) is changed and adjusted, and the pile weave is changed to a ground weave or a border weave (in general, the pile length is zero). For example, the interval between the first pick position and the loose pick position (that is, the movement amount of the cloth moving member in the front-rear direction, and thus the amount of movement before weaving) is changed.

In the above prior art, the distance between the first pick position and the loose pick position is changed by moving the sliding ring in the longitudinal direction of the swing lever to change the connection point between the swing lever and the drive mechanism. It is performed by As a result, the effective length of the swing lever is changed, so that the cloth moving member is moved in the front-rear direction, and the position before weaving in the front-rear direction, specifically, the loose pick position, is changed.

[0007]

However, in the above-described prior art in which the sliding ring is moved in the length direction of the swing lever, the moving amount of the sliding ring required to move the cloth moving member in the front-rear direction by a predetermined amount. And the size of the device is correspondingly increased, resulting in low responsiveness.

Therefore, in the cloth moving type pile forming apparatus, it is desired to reduce the size of the mechanism for changing the position of the cloth moving member in the front-rear direction and improve the responsiveness.

[0009]

A pile forming apparatus according to the present invention has a pair of swinging levers having guide portions extending in substantially the same direction, and is engaged with both of the guide portions so as to be movable in the longitudinal direction of the guide portions. And a connecting mechanism for connecting the two swinging levers to each other, and a moving mechanism for moving the connecting body with respect to the two swinging levers in the longitudinal direction of the guide portion. Each of the one and other swing levers has a swing fulcrum at one side and the other side in the longitudinal direction of the guide portion.

One of the rocking levers is used as a drive-side rocking lever that is rocked in synchronization with the rotation of the main shaft of the loom, and the other rocking lever connects the rocking motion of the drive-side rocking lever. It is used as a driven side swinging lever that swings by being transmitted by the body. The swinging motion of the driven-side swing lever is transmitted to the cloth moving member, and reciprocates the cloth moving member in the front-rear direction. As a result, before weaving, it is moved to the first pick position and the loose pick position.

In the pile forming device according to the present invention, the one swing lever has a swing fulcrum at one portion of the guide portion, and the other swing lever swings at the other portion of the guide portion. It has a fulcrum. For this reason, when the connecting body is moved in the longitudinal direction of the guide portion with respect to both swing levers,
The effective lengths of the two swinging levers change oppositely, for example, so that one becomes longer while the other becomes shorter.

[0012] The angle range of the drive side swing lever (ie,
Even if the swing angle range is constant, if the effective length of the drive-side swing lever changes, the connection point between the drive-side swing lever and the connector (hereinafter referred to as “drive-side connection point”). The moving range changes in proportion to the change in the effective length of the drive-side swing lever.

For example, as the effective length of the drive side swing lever increases, the range of movement of the drive side connection point also increases. on the other hand,
Connection point between the driven side swing lever and the connector (driven side connection point)
Also changes in the same way as the driving range of the drive side connection point.
Therefore, the memorial service range of the driven side swing lever changes in the same tendency as the movement range of the drive side connection point. In addition, as described above, the effective length of the driven-side swing lever changes in reverse to the effective length of the drive-side swing lever, and therefore, the swing angle range of the driven-side swing lever accompanying the change in the movement range. Is amplified.

Such a change in the swing angle range of the driven-side swing lever results in a change in the amount of reciprocation of the cloth moving member in the front-rear direction. Therefore, the distance between the first pick position and the loose pick position can be changed by moving the connecting body in the longitudinal direction of the swing lever by the moving mechanism.

As described above, when the swing fulcrum of both swing levers is disposed on the opposite side in the longitudinal direction of the guide portion, the driven swing lever when the effective length of the drive swing lever is changed by a fixed amount is provided. Of the swing angle range is larger than when the swing fulcrums of both swing levers are arranged on the same side in the longitudinal direction of the guide portion.

As a result, according to the present invention, the mechanism for changing the position of the cloth moving member in the front-rear direction is reduced in size and the responsiveness is improved.

When the swing fulcrum of the two swing levers is on the opposite side in the longitudinal direction of the guide portions, the guide portions become at least temporarily parallel in the course of the swing motion of the both swing levers. Therefore, if the pile forming device is set so that the weaving front is located at the first pick position when both guide portions are parallel, regardless of whether the swing angle range of both swing levers is changed or not, weaving is performed. Previously, the correct first pick position is maintained and the weft is beaten at that position. Further, if the connecting member is moved with respect to both the swinging levers when the two guide portions are parallel, the moving of the connecting member becomes smooth, and the responsiveness is further improved.

[0018] The pile forming device may further include a regulating device for regulating the posture of the connecting body. According to this configuration, since the change in the posture of the connecting body due to the swinging motion of the two swinging levers is regulated, the swinging motion of the driving-side swinging lever is reliably transmitted to the driven-side swinging lever. .

The connecting body and the one or other swing lever may be switchably connected to a transmitting position for transmitting motion between the two and a non-transmitting position for not transmitting motion between the two. With this configuration, the connecting body and the swinging lever are switched to the non-transmission position to prevent the swinging motion of the driving-side swinging lever from being transmitted to the driven-side swinging lever. The transmission of the pile forming operation can be stopped at the time of the rocking motion by the motion.

The pile forming device is further driven in synchronization with the main shaft of the loom to drive one of the rocking levers, and is connected to the other rocking lever to move the woven cloth. A cloth moving mechanism.

The guide portions of both swing levers may be spaced apart in the direction of swing movement of both swing levers. in this case,
The connecting body may be capable of linearly reciprocating in the direction of the rocking movement of both rocking levers.

However, both swing levers may be located in a direction intersecting the swing movement plane of both swing levers.

The guide portion may be a long hole into which the connecting member is movably fitted, or a guide surface for guiding the movement of the connecting member.

[0024] The restricting device may receive the connecting body so as to be able to linearly reciprocate in the direction of the swinging movement of the two swinging levers. In this case, the restricting device may be moved in the longitudinal direction of the guide portion by the moving mechanism to move the connecting body.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 to 4, a pile forming apparatus 10 includes a plurality of warps 12 extending from a warp beam (not shown), a tension roller 14 and a front side thereof (downstream of the warp 12 in the running direction). ) To the beating position in front of the opening position through the opening position, and at this beating position, the weft is struck by a reed 16 before weaving and woven.
And is incorporated in a pile loom that is wound around a cross roller (not shown).

The warp yarn 12 is opened at the shedding position by a shedding device (not shown) in synchronization with the rotation of the main shaft of the loom. The weft is inserted into the opening of the warp 12 by a weft insertion device. The reed 16 is driven in synchronization with the rotation of the main shaft (not shown) of the loom.

The tension roller 14 is mounted at one end to a lever 24 pivotally supported by a pivot 22 on a frame (not shown) of the loom. In contrast, the breast beam 20 has a pivot 26 at one end.
Lever 2 that is swingably supported by the frame of the loom
8 is attached so that the tension of the warp yarn 12 can be changed.

Main motor 30 for rotating the main shaft of the loom
Is reduced by the plurality of gears 32 and 34 and transmitted to the cam 36. The cam 36 is supported by a rotating shaft 38 rotatably supported by a frame of a loom (not shown). The rotating shaft 38 is rotated by a gear 34 to be rotated in synchronization with the main shaft of the loom.

The outer peripheral surface of the cam 36 is a cam surface.
A plurality of cam followers 40 that come into contact with circumferentially spaced locations on the cam surface are rotatably mounted on a swing lever 42 on the drive side.

The swing lever 42 is connected to a driven swing lever 44 spaced forward from the swing lever 42 by a connector 46. Swing levers 42 and 44
Are pivotally supported on the frame of the loom by pivots 48 and 50, respectively, and are pivoted about the axes (the axes) of the pivots 48 and 50 as the cam 36 rotates. Therefore, the cam 36 and the cam follower 40 act as a drive mechanism for swinging the swing levers 42 and 44.

The swing levers 42 and 44 have guide portions 52 and 54, respectively, extending in substantially the same direction (in the illustrated example, substantially up and down). The guide portions 52 and 54
They are formed at substantially the same height, and are spaced apart in the front-rear direction. The guide portions 52 and 54 are elongated holes having substantially the same length in the illustrated example.

The swing lever 42 has an elongated hole, that is, the guide portion 5.
At one end (upper side) in the longitudinal direction of the guide members 52, 54, the swing lever 44 is pivotally supported by the pivot 50 at the other end side (lower side) of the guide portions 52, 54 in the longitudinal direction. Have been.

In the illustrated example, the connecting body 46 is a link that is long in the running direction (back and forth direction) of the warp 12, and the engaging portion 56 that is fitted to the guide portions 52 and 54 so as to be movable in the longitudinal direction. And 58 at the ends. The connecting member 46 is movable in the longitudinal direction of the guide portions 52 and 54, and the guide portions 52 and 54 regulate the movement of the connecting member 46, particularly the engaging portions 56 and 58, in the longitudinal direction of the guide portions 52 and 54. .

The connecting member 46 is provided so that the distance between the connecting points of the swing levers 42 and 44 is maintained constant, in other words, during the swinging movement of the swing levers 42 and 44, the guide portion 5 is provided.
Swing lever 4 so that 2, 54 are temporarily parallel.
2, 44 are connected.

The engaging portions 56 and 58 are provided in the pile forming device 10.
(In the example shown in FIG. 1, in FIG. 1, a direction perpendicular to the paper surface, in other words, a cloth width direction). Thereby, the movement of the connecting body 46 with respect to the swing levers 42 and 44 becomes smooth.

The posture of the connecting member 46 is substantially horizontally regulated by the regulating device 60. For this reason, both swing levers 4
The change in the posture of the connecting body 46 due to the swinging motion of the swinging levers 2 and 44 is restricted, and the swinging motion of the swinging lever 42 is controlled by the swinging lever 4.
4 is reliably transmitted. It is desirable that the restricted posture of the coupling body is a direction orthogonal to the extending direction of the guide portion when the swinging levers 42 and 44 are temporarily parallel during the swinging motion. Therefore, in the example shown in FIG. 1, the extending direction of the guide portion is the vertical direction, so that the posture of the connecting body 46 is restricted in the horizontal direction.

The regulating device 60 includes a plurality of locking portions 62 rotatable about an axis extending in the width direction of the pile forming device 10.
Thereby, both side surfaces in the width direction of the connecting body 46 are gripped. Accordingly, the connecting body 46 smoothly reciprocates in a substantially horizontal direction with the swinging motion of the swinging lever 42.

The locking portion 62 may be a roller rotatable around an axis extending in the width direction of the pile forming device 10. Thereby, the connecting body 46 to the regulating device 60 is
Movement becomes smooth.

The regulating device 60 is moved up and down together with the connecting member 46 by the moving mechanism 64 for the connecting member 46. The moving mechanism 64 controls the rotation of a reversible rotation source 66 such as a servomotor supported on a frame of a loom by a plurality of gears 6.
8, the screw rod 70 screwed into the screw hole of the connecting body 46 is rotated by the gear 68. The connecting body 46 is raised by rotating the screw bar 70 to one side, and lowered by rotating the screw bar 70 to the other side.

The connecting body 46 has an upwardly projecting projection 72 at the end on the side of the swing lever 44. When the connecting body 46 is moved to the uppermost position, the projection 72 comes into contact with a stopper 74 provided on the frame of the loom, and the swing lever 44 is moved.
To prevent rocking. On the other hand, the guide portion 52 of the swing lever 42 has an extension 76 extending rearward (downstream in the running direction of the warp 12) from the upper end, that is, the end on the pivot 48 side.
Having.

When the connecting member 46 is moved to the highest position, the extending portion 76 receives the engaging portion 56 of the connecting member 46 with the swinging movement of the swing lever 42. As a result, the swing levers 42 and 44 are separated, and the swing motion of the swing lever 42 is not transmitted to the swing lever 44.

The pivot 50 is a connecting rod rotatably supported by the frame of the loom, and the swing lever 44 is assembled to the connecting rod, that is, one end of the pivot 50 so as not to rotate relatively. The pivot 50 is connected to the driven side swing lever 44.
Is reciprocally angularly rotated with the swinging motion of the.

The angular reciprocating rotational movement of the pivot 50 is
0 is transmitted to a drive lever 80 which is attached to the other end of the drive lever 80 so as to be relatively non-rotatable.
4 to the lever 28. Thereby, the levers 24 and 28 are repeatedly swung, and the tension roller 14 and the breast beam 20 are repeatedly reciprocated in the left-right direction in FIG.

In the illustrated example, the lever 28, the link 84 and the breast beam 20 function as a cloth moving mechanism, and the lever 24, the link 82 and the tension roller 14 function as a warp moving mechanism. The breast beam 20 and the tension roller function as a cloth moving member and a warp moving member, respectively. Further, the swing levers 42, 4
4. The connecting body 46 and the regulating device 60 act as a transmission mechanism for transmitting the power of the cam 36 to the cloth moving mechanism and the warp moving mechanism.

The rotation of the cam 36 causes the levers 42, 44,
When 80, 24 and 28 are rocked, the woven fabric 18 and the warp 12 are repeatedly reciprocated in the left-right direction in FIG.
Before weaving, it is repeatedly moved to a first pick position and a loose pick position. Thereby, the weft is repeatedly beaten at a predetermined ratio between the first pick position and the loose pick position, and is beaten before weaving when the weave is moved to the first pick position.

During the pile formation, the connecting member 46 is connected to the guide portion 5.
The moving mechanism 64 is maintained at a predetermined position on the way in the longitudinal direction of the reference numeral 2, 54. However, during the formation of the pile, the position of the connecting body 46 with respect to the swing levers 42 and 44 may be changed by the moving mechanism 64 to change the pile length. In any case, since the swing levers 42 and 44 are swung by the rotation of the cam 36, the weave is repeatedly moved to the first pick position and the loose pick position before weaving, and the pile is moved to the first pick position before weaving. The warp is formed by beating before weaving.

In the illustrated example, the swing levers 42, 4
4 and their guides 52, 54 are parallel as shown by the solid line in FIG. 2 when the weave is in the first pick position, and swung as shown by the dotted line in FIG. 2 when in the loose pick position. .

During ground weaving or border weaving during weaving,
As shown in FIG. 4, the connecting body 46 is maintained at the highest position by the moving mechanism 64. At this time, the projection 72 comes into contact with the stopper 74, and the swinging movement of the driven side swinging lever 44 is prevented.
Guide part 52 of the swing lever 42 with the swing movement of
In the extension 76 of

Therefore, when the connecting body 46 is moved to the highest position, the swinging levers 42 and 44 are disconnected, and the swinging motion of the driving-side swinging lever 42 is transmitted to the driven-side swinging lever 44. Not done. The reaction force due to the beating and the opening at this time is received by the stopper 74.

When the connecting body 46 is moved to the highest position, before weaving, the first pick position is maintained, and no pile is formed. However, at the time of border weaving, the swing lever 4
The position of the connector 46 with respect to 2 and 44 may be changed by the moving mechanism 64 to form a short pile.

In the pile forming device 10, the distance L0 between the connecting points between the swinging levers 42, 44 and the connecting member 46 is kept constant by the connecting member 46, and the posture of the connecting member 46 is controlled by the restricting device. A horizontal position is maintained by 60, and the pivot points of the two pivot levers 42, 44 are located on opposite sides of the connecting body 46.

For this reason, as shown in FIG.
Is moved by the moving mechanism 64 with respect to the swing levers 42, 44, for example, from m1 to m2, or vice versa, the effective lengths L42, L44 of the swing levers 42, 44.
Changes inversely so that, for example, one becomes longer while the other becomes shorter.

When the effective lengths L42, L44 of the swinging levers 42, 44 change as described above, the moving range of the connecting point between the connecting body 46 and the swinging levers 42, 44 changes, and the driven side also changes. The swing angle range of the swing lever 44 changes, and as a result, the loose pick position changes, so that the interval between the first pick position and the loose pick position changes.

In the illustrated example, the range of movement of the connecting point between the connecting body 46 and the swing lever 42 per unit swing angle range of the swing lever 42 is increased by the downward movement of the connecting body 46. When the connecting body 46 is moved upward with respect to the swing lever 42, the size of the connecting body 46 is reduced.

The moving range of the connecting point between the connecting body 46 and the swing lever 44 also changes in the same manner as the moving range of the connecting point between the connecting body 46 and the swing lever 42.

Further, the swing angle range θ0 of the swing lever 42
Is constant, the swing angle range of the swing lever 44 increases as the connecting body 46 moves downward, and decreases as the connecting body 46 moves upward with respect to the swing lever 42.

Therefore, the distance between the first pick position and the loose pick position increases when the connecting body 46 is moved downward, and decreases when the connecting body 46 is moved upward. As a result, the connecting body 46 is moved by the moving mechanism 64 to the swing lever 4.
The distance between the first pick position and the loose pick position can be changed by moving up and down with respect to 2, 44.

When the effective length L42 of the drive-side swing lever 42 is changed while the swing angle range θ0 of the drive-side swing lever 42 is constant as described above, the swing lever 44 and the connecting body 46 are changed. The range of movement of the connection point with is changed.

On the other hand, when the moving range of the connecting point between the swing lever 44 and the connecting body 46 changes, the swing angle range of the swing lever 44 also changes in the same tendency. Moreover, as described above, the effective length L44 of the swing lever 44 changes in the opposite direction to the effective length L42 of the swing lever 42, so that the swing lever 44 swings with the change in the movement range. The variation of the angle range is amplified. Such a change in the swing angle range of the swing lever 42 results in a change in the amount of reciprocation of the cloth moving member in the front-rear direction.

The amount of change in the swing angle range of the swing lever 44 when the effective length L42 of the swing lever 42 is changed by a fixed amount is determined by setting the swing fulcrum of both swing levers in the longitudinal direction of the guide portions 52, 54. Is larger than when they are arranged on the same side.

That is, for example, in FIG. 5, when the position of the connection point between the swing levers 42, 44 and the connecting body 46 is m1, the swing angle range of the swing lever 44 and the swing lever 4
The movement range of the connection point between the connector 4 and the connector 46 is θ
1 and P20 (= P10). On the other hand, when the position of the connection point between the swing levers 42 and 44 and the connection body 46 is m2,
The swing angle range of the swing lever 44 and the movement range of the connection point between the swing lever 44 and the connector 46 are θ3 and P22 (= P12), respectively. θ2 is the swing lever 42, 4
When the position of the connecting point between the connecting member 4 and the connecting member 46 is at m1, and the moving range of the connecting point between the rocking lever 44 and the connecting member 46 is P22 (= P12), the rocking lever 44 Is shown.

As is clear from FIG. 5, θ2 <θ3. Therefore, in the pile forming apparatus 10, the amount of change in the swing angle range of the swing lever 44 when the effective length L42 of the swing lever 42 is changed by a fixed amount guides the swing fulcrum of both swing levers. It is larger than when it is arranged on the same side in the longitudinal direction of the part. As a result, the mechanism for changing the position of the cloth moving member in the front-rear direction is reduced in size, and responsiveness is improved.

If the mechanism for changing the position of the cloth moving member in the front-rear direction is reduced in size and has high responsiveness, the pile height can be changed and switching to pile weave, ground weave, and border weave can be performed in a short time. In addition to increasing the weaving efficiency, the number of changes in pile height during the interval change can be significantly reduced, so that a beautiful towel can be woven.

As shown in FIG. 5, the posture of the connecting body 46 is regulated horizontally by the regulating device 60. Therefore, the engaging portions 56 and 58 both reciprocate in the horizontal direction during one swinging process of the swing levers 42 and 44. At this time, the engaging portions 56 and 58 are separated from the position m1 by a maximum distance δx.
And the guide portions 56 and 58 are displaced by δy. Therefore, the movement ranges P10 and P20 of the engagement portions 56 and 58 at the position m1 can both be expressed as L42 × tan θ.

In the pile forming apparatus 10, since the swing fulcrum of both swing levers 42, 44 is on the opposite side of the guide portions 52, 54 in the longitudinal direction, both swing levers 42, 4 are provided.
In the course of the rocking motion of No. 4, the guide portions 52, 54 are at least temporarily parallel.

Therefore, if the pile forming apparatus 10 is set such that the weaving front is located at the first pick position when the guide portions 52 and 54 are parallel, the swing lever 4
Regardless of whether or not the swing angle ranges of 2, 44 are changed, beating is always performed at a constant correct first pick position before weaving.

When the two guide portions 52 and 54 become parallel, the connecting member 46 is moved by the moving mechanism 64 to the two swing levers 4.
If it moves with respect to 2,44, the movement of the connection body 46 will become smooth and the responsiveness will be higher.

The guide portion may be a guide portion other than a long hole, for example, a guide surface such as an outer surface of a rod-like member or a columnar member extending in the length direction of the swing lever. Further, the two rocking levers may be arranged such that their guide portions are spaced apart in the direction of the rocking movement of the both rocking levers as in the example shown in the figure, or the rocking It may be located in a direction intersecting with the movement plane. In the former case, the connecting body may be capable of linearly reciprocating in the direction of the rocking movement of both rocking levers.

FIGS. 6 and 7 show another embodiment of the transmission mechanism for transmitting the power of the cam to the cloth moving member. This transmission mechanism includes a pair of prismatic swing levers 8 extending in substantially the same direction.
2 and 84, and a pair of side surfaces 86 and 88 of the swing levers 82 and 84 are used as guide portions. The guide surfaces, that is, the guide portions 86 and 88 extend in substantially the same direction.

The swing lever 82 is connected to the cam 36 shown in FIG.
This is a drive-side swing lever that is swung by the rotation of the shaft, and is pivotally supported by a pivot 90 at one end of the guide portions 86 and 88 in the longitudinal direction. The swing lever 84 is a driven swing lever that swings with the swing of the swing lever 82, and is pivotally supported by the pivot 92 at the other end of the guide portions 96 and 98 in the longitudinal direction. ing.

A connecting member 94 for connecting both levers 82 and 84
Has rotatable guide plates 95 and 97 at both ends, and the guide plates 95 and 97 have a plurality of locking portions 96 and 98 for gripping the guide portions 86 and 88, respectively. The connecting portion 94 is vertically moved by a moving mechanism (not shown) similar to that shown in FIG. Locking parts 96 and 98
May be a roller rotatable around an axis extending in the width direction of the loom, in other words, in the cloth width direction.

The transmission mechanism shown in FIGS. 6 and 7 transmits the oscillating motion of the oscillating lever 82 to the oscillating lever 84 as in the embodiment shown in FIGS. The motion is transmitted to the cloth moving member. In this transmission mechanism, the swing levers 82 and 84 are guided by guides 86 and 88, respectively.
Therefore, the restricting device for restricting the posture of the connecting body 90 may not be used. However, a regulating device may be used.

FIGS. 8 and 9 show still another embodiment of the transmission mechanism for transmitting the power of the cam to the cloth moving member. The transmission mechanism includes a pair of plate-shaped swing levers 102 and 104.
Are stacked in the thickness direction. Swing levers 102 and 104
Have guide portions 106 and 108, respectively. The guide portions 106 and 108 are elongated holes extending in substantially the same direction.

The swing lever 102 is a swing lever on the drive side, and is pivotally supported by a pivot 110 at one end of the guide portions 106 and 108 in the longitudinal direction. The swing lever 104 is a driven swing lever that swings with the swing of the swing lever 102, and
6,108 are pivotally supported by the pivot 112 at the other end in the longitudinal direction.

The connecting body 114 for connecting the two swinging levers 102 and 104 has an engaging portion 116 slidably fitted to the guide portions 106 and 108. The locking portion 116 can also be a roller that is rotatable about an axis extending in the width direction of the loom.

The connecting body 114 is screwed with a screw rod 120 rotated by a reversible rotation source 118 of the moving mechanism, and is moved up and down by rotating the screw rod 120.

The transmission mechanism shown in FIGS. 8 and 9 operates similarly to the embodiment shown in FIGS. 1 and 2 and FIGS. 6 and 7.
The swing motion of the swing lever 102 is transmitted to the swing lever 104, and the swing motion of the swing lever 104 is transmitted to the cloth moving member. In the transmission mechanism shown in FIG. 8 and FIG.
It is preferable to use a restricting device for restricting the posture of the locking portion 116, especially the posture of the locking portion 116.

In the transmission mechanism shown in FIGS. 8 and 9, when the connecting body 114 is moved to the highest position,
Since the distance D between the pivot point of the swing lever 102 and the upper end of the guide portion 196 is short, the moving range of the connection point between the swing lever 102 and the connecting body is small, and therefore, even if the swing lever 102 swings, The swing lever 104 hardly swings and is separated from the swing lever 102.

FIG. 10 shows an embodiment of an electric circuit for operating the pile forming apparatus 10 as described above. Spindle 120
Is rotated by the main motor 30, and the rotation angle of the main shaft 120 is detected by a rotary encoder 122. The output signal of the encoder 122 is supplied to a step signal generator 124 and a position commander 126.

A plurality of cloth movement amount signals P0 to Pn as shown in FIG. 11 are set in the cloth movement amount setting unit 128.
Each cloth movement amount signal represents a cloth movement amount necessary to form a pile of a length assigned to the cloth movement amount signal, that is, an interval between a first pick position and a loose pick position. FIG.
, The cloth movement amount signal P3 is a signal for ground weaving or border weaving, and at this time, the pile length is zero.

In the towel tissue pattern setting unit 130, the cloth movement number corresponding to the cloth movement signal is set for each step signal representing the pick for all picks (weft insertion) necessary for weaving one towel. Have been. The step signal is a step number indicating the order of weft insertion during weaving of one towel, and is generated based on the output signal of the encoder 120 by the step signal generator 124,
It is supplied to the opening controller 132.

The opening controller 132 reads out the cloth movement number corresponding to the input step signal from the towel tissue pattern setting unit 130 based on the input step signal, and supplies the read cloth movement number to the position command unit 126.
The opening controller 132 also controls an opening driving device 134 that drives the opening device.

The position commander 126 is provided with the opening controller 1
Based on the cloth movement number input from 32, the cloth movement amount signal corresponding to the cloth movement number is read from the cloth movement amount setting unit 128, and the read cloth movement amount signal is supplied to the amplifier 136.

The output signal of the amplifier 136 is shown in FIGS.
138 corresponding to the rotation sources 66 and 118 at
Supplied to As a result, the motor 138 is rotated by a value corresponding to the cloth moving amount, so that the connecting body connecting the two rocking levers is moved with respect to the rocking levers, and the woven cloth moves to a predetermined position. Is done.

The amount of rotation of the motor 138 is determined by the pulse generator 14.
0, and the detected rotation amount is fed back to the amplifier 138. For this reason, the amplifier 138 controls the position of the motor 138 so as to maintain the position of the connector with respect to the swing lever at a position corresponding to the cloth movement amount signal. Thus, the cloth is maintained at a position corresponding to the cloth movement amount signal.

The present invention is not limited to the above embodiment. For example, the present invention can be applied not only to a pile forming apparatus that moves a woven cloth and a warp simultaneously, but also to a pile forming apparatus that moves only a woven cloth. Can be. Therefore, the present invention can be variously modified without departing from the gist thereof.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a pile loom incorporating a pile forming apparatus according to the present invention.

FIG. 2 is a diagram showing an embodiment of a transmission mechanism for transmitting the power of the cam to the cloth moving member in the pile forming apparatus shown in FIG.

3 is a sectional view taken along line 3-3 in FIG. 2;

FIG. 4 is a diagram for explaining an operation when the connecting body is moved to a highest position.

FIG. 5 is a view for explaining the operation of the transmission mechanism shown in FIG. 2;

FIG. 6 is a view showing another embodiment of the transmission mechanism for transmitting the power of the cam to the cloth moving member.

FIG. 7 is a view taken along line 7-7 in FIG.

FIG. 8 is a view showing still another embodiment of the transmission mechanism for transmitting the power of the cam to the cloth moving member.

9 is a sectional view taken along line 9-9 in FIG.

FIG. 10 is a block diagram showing an embodiment of an electric circuit.

FIG. 11 is a diagram showing an embodiment of a cloth movement amount signal;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Pile forming apparatus 12 Warp 14 Tension roller 16 Reed 18 Woven cloth 20 Breast beam 36 Cam 40 Cam follower 42,82,102 Swing lever 44,84,104 on the driving side Swing lever 46,94,104 on the driven side 114 Connecting body 48, 50, 90, 92, 110, 112 Pivot 52, 54, 86, 88, 106, 108 Guide 56, 58, 96, 98, 116 Engagement 60 Restriction device 62 Locking unit 64 Moving mechanism 66,118 Rotation source of moving mechanism

Claims (10)

[Claims] 1. A pair of swing levers having guide portions extending in substantially the same direction, and are engaged with the two guide portions so as to be movable in the longitudinal direction of the guide portions, thereby connecting the two swing levers to each other. A connecting mechanism, and a moving mechanism for moving the connecting body in a longitudinal direction of the guide portion with respect to the two swing levers, wherein the one and the other swing levers are each one side in the longitudinal direction of the guide portion. And a cloth moving pile forming apparatus having a swing fulcrum at the other side. 2. The pile forming device according to claim 1, further comprising a restricting device for restricting a posture of the connecting body. 3. The connecting body and the one or other swing lever are switchably connected to a transmitting position for transmitting motion between the two and a non-transmitting position for not transmitting motion between the two. The pile forming apparatus according to claim 1. 4. A drive mechanism which is driven in synchronization with the main shaft of the loom to swing one swing lever, and is connected to the other swing lever to move the woven cloth. The pile forming apparatus according to any one of claims 1 to 3, further comprising a mechanism. 5. The guide of the two pivoting levers is spaced apart in the direction of the pivoting movement of the two pivoting levers.
The pile forming apparatus according to any one of claims 1 to 4. 6. The pile forming apparatus according to claim 5, wherein the connecting body is capable of linearly reciprocating in the direction of the swinging movement of the swinging levers. 7. The pile forming apparatus according to claim 1, wherein the two swing levers are located in a direction intersecting with the swing motion surfaces of the both swing levers. 8. The guide according to claim 1, wherein the guide is an elongated hole into which the connector is movably fitted, or a guide surface that guides the movement of the connector. Pile forming equipment. 9. The pile forming apparatus according to claim 2, wherein the restricting device receives the connecting body so as to be able to linearly reciprocate in the direction of the swinging movement of the swinging levers. 10. The pile forming apparatus according to claim 9, wherein the regulating device is moved in a longitudinal direction of the guide by the moving mechanism to move the connecting body.