JPH03841A - Warp yarn tension regulator and conveyor equipped therewith - Google Patents

Abstract

PURPOSE:To always maintain uniform warp yarn tension by applying a torque in the winding direction of warp yarns by rotation of a roller in a tension regulating mechanism in contact with a flange of a warp yarn beam supported on transfer arms. CONSTITUTION:A warp yarn tension regulating mechanism 200 is constructed by supporting one end of a supporting arm 202 on one of transfer arms 124 and arranging a rotatable roller 210 and a rotor 212 connected through a friction clutch 226 to a shaft 208 on the other end of the supporting arm 202 rotatably around the shaft line parallel to the shaft line of a warp yarn beam supported on the aforementioned transfer arms 124 of a carrier for processing in a loom. During delivery of the warp yarn beam, the rotation source 206 of the above- mentioned tension regulating mechanism 200 is rotated and operated and the aforementioned roller 210 is brought into contact with a beam flame (14a) and a torque in the winding direction of the warp yarn is then applied to the aforementioned beam. Thereby, the warp yarn tension is kept at a value defined by the above-mentioned friction clutch 226.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a device for adjusting the tension of the warp threads of a beam received in a conveying device for machine work, and a conveying device equipped with the same.

(Prior Art) As one of the transportation devices equipped with a delivery function for machine work, there is a transportation device described in Japanese Patent Application Laid-Open No. 63-42944. This conveying device consists of a cart movable to the delivery position of the warp beam, and a cart arranged at intervals in the horizontal direction to rotatably receive the shaft of the beam around the axis so that the axis of the beam is horizontal. A pair of transfer arms arranged in parallel, a drive mechanism that moves the transfer arms relative to the cart to transfer the beam, and warps such as reeds, heald frames, dropper devices, etc. through which warp threads extending from the beams are passed. It includes a support mechanism that supports the threading member, and a tension adjustment mechanism that adjusts the tension of the warp threads extending from the beam supported by the transfer arm to the warp threading member.

The tension adjustment mechanism of this known conveying device is activated by an operator operating a push button switch.

(Problem to be Solved) However, with the known tension adjustment mechanism, it is necessary to operate a push button switch every time the warp tension changes, which is cumbersome. Since the tension is checked manually, it is not possible to adjust the tension to a constant value.

Japanese Patent Publication No. 57-53899, Japanese Patent Publication No. 63-2433
As described in Japanese Patent No. 53, etc., a tension maintaining mechanism has been proposed that prevents rotation of a beam supported by a beam receiver. However, since this tension maintaining mechanism is a brake mechanism, the tension must be adjusted manually, and therefore the tension cannot be adjusted to a constant value.

An object of the present invention is to provide a warp tension adjustment device and a conveying device equipped with the same, which can adjust the tension to a constant value and maintain it at that value without manual intervention.

(Solution Means, Actions, Effects) The warp tension adjusting device of the present invention is a device for adjusting the tension of the warp threads of a beam rotatably received by a conveying device for machinery, and comprises an arm supported on the transfer means so as to be angularly rotatable about a first axis; a rotation mechanism supported by the arm; and a rotation mechanism rotatable about a second axis parallel to the first axis. and a roller arranged so as to be in contact with the beam and applying a rotational force to the beam in the direction of winding the warp yarns in response to the rotation of the rotation mechanism, and a roller configured to transmit the rotation of the rotation mechanism to the roller. and a friction clutch disposed in the.

When the beam with the warp wrapped around it is received by the delivery means,
It contacts the roller and receives a rotational force in the direction of winding the warp due to the rotation of the roller as the rotation mechanism rotates.

If the warp threads extending from the beam are loose, they will be wound around the beam. However, if the tension of the warp threads extending from the beam exceeds a value determined by the friction clutch, the friction clutch will slip and the rotor will not rotate. Further, when a force for drawing out the warp threads from the beam, that is, an excessive tension, acts on the tip of the warp threads, the beam is rotated in the direction in which the warp threads are paid out, and the warp threads are pulled out from the beam.

As described above, according to the present invention, if there is an excess or deficiency in the tension of the warp threads extending from the beam, the beam is rotated and the tension of the warp threads extending from the beam is adjusted to a constant value without manual intervention. maintained at that value.

Further, a rotor disposed rotatably about the second axis, another friction clutch that transmits rotation of the rotation mechanism to the rotor, and a rotor disposed rotatably about the second axis; a circular stator that is non-rotatably attached to the device; and a circular stator that is arranged so as to return from the stator to the stator via the rotor, and that is fixed to the stator so that it cannot move relative to the stator in the circumferential direction. It is preferable to include a connected body.

Thereby, while the rotation source is rotating, the rotor, stator and coupling body act to rotate the arm in the direction in which the roller is pressed against the beam. Therefore, even if the beam is displaced relative to the delivery means during delivery, the arm is rotated angularly and the roller is always in contact with the beam, so the warp tension remains constant until the beam leaves the roller. maintained.

The rotation mechanism can include a shaft supported by the arm so as to be rotatable about the second axis, and a rotation source that rotates the shaft about the axis.

In this case, the rotor and the stator are connected to the shaft via corresponding friction clutches.

The rotor may be coupled to one end of the shaft via a corresponding friction clutch, and the stator may be coupled to the other end of the shaft via a corresponding friction clutch. (a) Sprockets may be used as the rotor and stator, and an endless chain may be used as the connecting body.

Preferably, the roller is arranged so that it contacts the outer peripheral surface of the flange of the beam.

The conveying device of the present invention is a conveying device for delivering a beam around which warp threads are wound to a loom or a preparation stand, and includes a conveying means movable to a delivery position of the beam, and a means for delivering the beam. a delivery means disposed on the conveying means to rotatably receive the beam about its axis; a driving means for displacing the delivery means with respect to the conveying means to cause the beam to be delivered; means for adjusting tension in the warp threads extending from a beam supported on the transfer means, said tension adjustment means being angularly rotatable about a first axis parallel to the axis of said beam received on said transfer means. an arm supported by the transfer means, a rotation mechanism supported by the arm, and arranged to be rotatable about a second axis parallel to the first axis and in contact with the beam; It includes a roller that receives the rotation of the rotation mechanism and applies a rotational force to the beam in a direction to wind up the warp threads, and a friction clutch that is arranged to transmit the rotation of the rotation mechanism to the roller.

(Example) Referring to FIGS. 1 to 6, the conveying device 10 has 7g3
Devices to be delivered such as looms and cradle for preparation of loom work shown in the figure 1
2, it is used as a delivery device for delivering a beam 14 around which the warp is wound, a dropper device through which the warp is passed, a heald frame, and a reed.

As shown in Figure 7F3, the delivery target device 12 includes a pair of beam receivers spaced apart in the horizontal direction to horizontally receive the beam 14, a pair of dropper receivers in section 18, and a pair of heald frame receivers. The housing includes a portion 19 and a pair of reed holder portions 20. Each beam receiver section 16 has recesses 22, 24 formed at longitudinally spaced locations therein for receiving the shank of the beam 14. A recess 22 formed on the tip side of the beam receiver portion 16 is used as a temporary placement position for the beam 14. On the other hand, the recess 24 formed on the base end side of the beam receiver portion 16 is used as the correct installation position, that is, the normal position, of the beam 14.

The beam 14 includes a drum around which the warp is wound, a pair of flanges fixed to opposite ends of the drum, a shaft protruding from the center of the flange along the axis of the drum, and a shaft attached to the shaft. This is a known bearing.

The shank received in the recesses 22, 24 may be the glaze or the bearing.

As shown in FIGS. 1 and 2, the transportation device 10 includes a cart 28 that is movable on a floor 26 to a delivery position for the device 12 to be delivered. The trolley 28 includes a pair of boxes 30 that are arranged to face each other, and a long connecting member 32 that immovably connects the boxes at their lower ends. It has a planar shape and a back shape.

A plurality of wheels 34 are rotatably attached to each box 30. The wheels 34 are rotated by synchronously controlled drive mechanisms located within the corresponding boxes 30. As a result, the truck 28 is arranged such that one box is the front part and the other box is the rear part.
2 in the longitudinal or lateral direction.

The heavy wheels 34 are pivotable so that the truck 28 can turn around corners in its path of travel. Each box 30 also accommodates a control storage area for moving the cart 28 and a control device for delivery.

The trolley 28 also includes a pair of rails 36 extending in the direction toward the delivery target device 12, that is, in the rear direction, and a pair of racks 38 extending parallel to the rails. Each rail 36 is horizontally fixed to the box 30 by a plurality of brackets 42 so as to receive the movable table 40 so as to be movable in the front-back direction. As shown in FIG. 7, each rack 38 is fixed to the corresponding box 30 by a bracket 44 with its teeth facing downward.

As shown in FIGS. 1 to 5, the movable platform 40 includes a trolley 28
A long base member 46 extending parallel to the connecting member 32, a pair of square cylindrical pillar members 48 extending upward in parallel from both ends of the base member, and the upper ends of the compatible pillar members are connected to each other. It is assembled into a gate shape by a square tube-shaped beam member 50.

As shown in FIGS. 1 to 4, a pair of auxiliary members 52 corresponding to the rails 36 are attached to the base member 46. The auxiliary member 52 projects from the end of the base member 46 above the corresponding rail 36 in parallel with the rail.

A plurality of engagement members 54 that slidably engage with the corresponding rails 36 are attached to the lower surface of each auxiliary member 52 at intervals in the front-rear direction. Rail 36 and engaging member 54
is engaged such that the engagement between the two is not released and the load of the moving platform 40 acts on the rail 36 via the engagement member 54.

As shown in FIG. 2, the drive mechanism 56 for moving the moving table 40 relative to the cart 28 includes a rotation source 5B attached to the end of the base member 46, and a pair of gears corresponding to the rack 38. 60. Each gear 60 is attached to the end of a shaft 62 that extends longitudinally through the base member 46 and meshes with a corresponding rack 38 .

As shown in FIG. 7, the shaft 62 is connected to the base member 46.
The supports disposed at both ends of the base member 46 are rotatably supported by members 6466. The rotation of the rotation source 58 is caused by a sprocket 6 attached to the output shaft of the rotation source.
8a and the sprocket 6 attached to the shaft 62
8b and a chain 68c hooked to both sprockets. Therefore, the movable table 40 is moved in the front-rear direction with respect to the cart 28 by rotating the rotation source 58.

As the connection mechanism 68 for the moving table 40, the sprocket 6
8a, 68b and the chain 68c, a mechanism using a so-called timing pulley having a plurality of teeth on the outer peripheral surface like a spur gear and an endless so-called timing belt having a plurality of teeth that mesh with the teeth of the timing pulley. , other coupling mechanisms can be used.

In the illustrated example, the rack 38 and the gear 60 are arranged so that the rack 38 is placed above the gear 60, or conversely, the rack 38 is placed on the moving platform 40 and the gear 60 is placed on the moving platform 40. 28, respectively. In either case, since the load of the movable base 4o is supported by the rail 36, the load of the movable base 40 does not act on the rack 38 and the gear 6o, and the movement of the movable base 40 relative to the trolley 28 becomes smooth.

Other mechanisms such as a jack can be used as a mechanism for moving the movable platform 40 in the front-back direction with respect to the trolley 28.

A pair of rails 70 corresponding to the support member 48 and a pair of threaded rods 72 are arranged on the movable table 40 so as to extend vertically in parallel at horizontally spaced positions.

Each rail 70 is fixed to the front surface of the corresponding support member 48. On the other hand, each threaded rod 72 is immovably and unrotatably attached to the movable base 40 by nuts 74 at both upper and lower ends, as shown in Figure 7j55.

A pair of elongated support stands 78, 78 which are spaced apart from each other in the vertical direction are engaged with both rails 70 so as to be movable in the vertical direction. As shown in FIG. 5, the supports 76 and 78 each have sliders 80 and 82 that are slidably and irremovably fitted into the two knolls 70, and connectors 84 and 86 that connect the sliders. , and covers 88 and 90 surrounding the connector.

As shown in FIG. 5, the sliders 80 and 82 have internal threads 92 and 94, respectively, which are threaded onto the threaded rod 72.
are rotatably arranged around the corresponding threaded rods 72. Internal threads 92 and 94 connect timing pulleys 96 and 98 and connectors 100 and 10, respectively.
2 to corresponding sliders 80 and 82, and also to corresponding timing pulleys 96 and 9.
By rotating 8, it is rotated and moved in the vertical direction. As a result, the support stands 76 and 78 are also moved in the vertical direction.

Since the support bases 76.78 are engaged with the threaded rod 72 via the female threaded bodies 92.94, it is not necessary to engage the support bases 76.78 with the rails 70, and in this case, the rails 70 are unnecessary. .

As shown in FIGS. 5 and 6, the timing pulley 9
6 and 98 are rotation sources 104 and 106 attached to support stands 76 and 78, respectively, timing pulleys 108 and 110 attached to the output shafts of the rotation sources, and rotatably supported on support stands 76 and 78. A pair of tension pulleys 112 and 114 are attached to each other, and timing belts 116 and 1 are attached to a predetermined belt.
1B. Timing pulley 96.98
These rotating members are surrounded by covers 88,90 of the corresponding supports 76 and 78.

Rotation source 106, timing pulley 110, and timing belt 118 are arranged in substantially the same manner as rotation source 104, timing pulley 108, and timing belt 116, respectively.

Timing pulleys 108, 110 and tension pulleys 112, 1 are used as means for transmitting the rotation of the rotation sources 104, 106 for the support bases 76, 78 to the corresponding female threads 92, 94.
14 and timing belts 116, 118, other transmission means such as sprockets and chains can be used.

As shown in FIGS. 2 and 5, each threaded rod 72 is protected from dust by a pair of bamboo springs 120, 122. As shown in FIGS. The bamboo shoot spring 120 is connected to the movable base 4 of the threaded rod 72.
It is fixed to the beam member 50 of the moving table 4° and the support stand 78 so as to surround the area between the beam member 5o of the moving table 4° and the support stand 78.

On the other hand, the bamboo shoot spring 122 is arranged so as to surround the portion of the threaded rod 72 between the support bases 76.7.
It is fixed at 8. FIG. 1 does not show the bamboo shoot spring 120° 122 in order to show the threaded rod 72.

As shown in FIGS. 1, 4, and 6, the support base 76
Each slider 80 supports a transfer arm 124. Each transfer arm 124 is connected to the base member 46 of the moving table 40.
It is engaged with a pair of rails 126 attached to the front surface of the slider 80 so as to extend parallel to the slider 80 so as to be slidable in the direction along the rails, and the beam receiver of the device 12 to be delivered corresponds to the part 16. ing. Both transfer arms 124
are laterally spaced from each other and have corresponding sliders 8 to horizontally receive and support the beam 14.
It protrudes forward from 0.

As shown in FIG. 3, each transfer arm 124 has a beam 1
There are recesses 128, 130 for receiving the four shafts. recess 12
8 and 130 are used when transferring the beam 14 to and from the recesses 22 and 24 of the device 12 to be transferred, respectively.

The depth dimension of the recess 130 is greater than the depth dimension of the recess 128 and is also greater than the radial dimension of the shaft portion 14b of the beam 14, preferably the diameter dimension of the shaft portion 14b.

As shown in FIG. 4, the transfer arm 124 is connected to the rod 13
2, and the distance between the outer surfaces of both transfer arms 124 is maintained to be slightly shorter than the distance between the inner surfaces of the beam receiver 16. Both transfer arms 124 are arranged between the beam receivers 16 when the moving table 40 is moved forward with respect to the cart 28 at the delivery position.

The rod 132 is shown in FIG. 1 as being located in front of the support 76, or is actually located below the support 76 as shown in FIGS. 4 and 5. .

As shown in FIG. 6, the distal end surface of each transfer arm 124 is an outward-facing Taper surface 124a, and the end surface of the corresponding beam receiving portion 16 is an inward-facing Taper surface 16a.

Therefore, when the transport device 10 is moved to the delivery position, if the transfer arm 124 is misaligned with respect to the beam receiver 16 in the direction in which the transfer arm 124 can move relative to the moving table 40, the moving table 40 is advanced relative to the carriage 28, the end surfaces 124a and 16a of the arm 124 and the beam receiver portion 16 come into contact with each other, and then, as the movable carriage 40 is further advanced, the outer surfaces of both arms 124 are brought into contact with each other. The arm 124 is moved along the rail 126 until the corresponding beam receiver contacts the inner surface of the portion 16. As a result, the lateral displacement of the transfer arm 124 with respect to the beam receiver section 16 is automatically corrected.

The transfer arm 124 and the beam receiver are connected to the end surface 124 of the section 16.
Only one of a and 16a may be a Taber surface.

The support stand 76 also has a transfer arm 1 for the trolley 28.
A position adjustment mechanism 134 for adjusting the position of 24 is disposed.

As shown in FIG. 8, the position adjustment mechanism 134
A pair of L-shaped brackets 136 are attached to the connecting body 84 of No. 6 at intervals in the moving direction (lateral direction) of the transfer arm 124, and a pair of L-shaped brackets 136 are attached to the connecting body 84 of No. 6 at intervals in the moving direction (lateral direction) of the transfer arm 124. A pair of movably supported sliders 138, a pair of springs 140 that correspond to the sliders and move the corresponding slider toward the other slider, and a transmission body 142 that mutually transmits the movement of the slider 138 and the rod 132. Equipped with.

Each slider 13B has a rod portion 138a and a spring seat 138b fixed to the tip of the wood portion. Both sliders 138 are attached to corresponding brackets so that the spring seats 138b face each other! 36 and is slidably supported by a rod portion 138a. A spring seat 144 is disposed between the spring seat 138b of each rod portion 138a and the bracket 136, through which the rod portion 138a can slide. A washer 146 and a nut 148 for preventing the slider 138 from separating from the bracket 136 are disposed on the ring portion of each rod portion 138a on the side opposite to the spring seat 138b.

Each spring 140 is a compression coil spring in the illustrated example;
Further, it is arranged between the spring seats 138b and 144.

The transmission body 142 is fixed to the rod 132, and is connected to the slider 13 from the part fixed to the rod 132.
It protrudes into the 8th room.

In the position adjustment mechanism 134, when no force is acting on the rod 132 to displace the rod 132 relative to the movable body, the slider 138 is maintained at a position where the force of the spring 140 is balanced. Thereby, the rod 132 and thus the transfer arm 124 are maintained at a predetermined position relative to the support base 76.

However, when a force that displaces the rod 132 relative to the support base 76 acts on the rod 132, the slider 138 disposed on the side in the moving direction of the rod 132 resists the force of the corresponding spring 140 by the transmission body 142. This causes a force to be stored in the spring 140 corresponding to the amount of displacement of the rod 132.

When the force displacing the rod 132 relative to the support base 76 is released, the slider 138 disposed on the side in the direction of movement of the rod 132 is pushed back by the force accumulated in the corresponding spring 140. As a result, the transmission body 142 is pushed, and the lot 132 is moved toward the original position.

Each spring 140 may be arranged in a compressed state so as to always press the corresponding slider 138, or may be arranged in an expanded state so as not to apply a pressing force to the corresponding slider 138 unless compressed by displacement of the corresponding slider 138. It may be placed in the state. Also, at this time, the spring pressure is
48 may be adjusted so that the spring seat 138b presses the transmission body 142, or may be adjusted so that there is contact or a gap to the extent that no pressing force is applied.

As shown in FIGS. 3, 4 and 9, the support stand 78
A frame assembly 150 is supported by each slider 82 . Each frame assembly 150 includes a first stand 152 fixed to the slider 82, a pair of rails 154 fixed to extend laterally on the stand, and a first stand 152 that is movable on the stand 152 along the rails 154. Arranged frame 156
Equipped with. Both frames 156 are connected by a connecting rod 158 so that both frames move together.

The connecting rod 158 has a rack portion 160 formed in the center thereof, and when a gear 162 (see FIG. 1) meshing with the rack portion 160 is rotated,
Moved laterally. As shown in FIGS. 4 and 5, the rotation mechanism 164 that rotates the gear 162 is connected to the support base 7.
It is attached to 8.

As shown in FIG. 9, each frame assembly 150 is also provided with a first link piece 166 rotatably arranged around an axis extending in the vertical direction.

The first link piece 16B has a bearing 168 disposed at its rear end and a frame 15 extending vertically.
6 and a first lN 1170 fixed to the frame 156 so as to extend from the frame 156 in the iWi direction.

A worm wheel 172 is fixed to the rear end of each first link piece 166 coaxially with the first sleeve 170 .

Each worm wheel 172 is meshed with a worm 176 fixed to a common rod 174. rod 17
4 is rotatably supported by a frame 156, and is rotated forward and backward by a rotation mechanism 178 shown in FIGS. 3 and 4 supported by one frame 156. Both worms 176 are threaded in opposite directions. Therefore, when the rod 174 is rotated by the rotation mechanism 178, the first link pieces 166 are angularly rotated in opposite directions. Note that the rod 174 and the rotation mechanism 178 are not shown in FIG.

Each first link piece 166 has a second link piece 166 extending in the vertical direction at its tip. The second link piece 182 is supported via II'1l180. The second shaft 180 is rotatably supported by the first link piece 166 by a bearing 184 or fixed to the second link piece 182. First and second 11iI! Sprockets 188 and 190 connected by a chain 186 are fixed to +166 and 182, respectively. Therefore, each second link piece 182 is connected to the corresponding first link piece 16.
6 is rotated angularly in a direction opposite to that of the first link piece 166.

The number of teeth on sprockets 188 and 190 is selected to be 2:1. Therefore, each second link piece 182 is
As the corresponding first link piece 166 rotates, the first
The rotation angle of the link piece 166 is twice that of the rotation angle of the link piece 166.

As a result, the linkage consisting of the first and second links 166.182
82 are rotated in opposite directions by the rotation of the rotation mechanism 178, and are expanded and contracted.

As shown in FIG. 1, an arm 192 that supports the dropper device, the heald frame, and the reed is connected to the tip of each second link piece 182. A chuck 194 for gripping the dropper device and a chuck 196 for gripping the heald frame are suspended from each arm 192. chuck 194
are interconnected by rods 198.

The transport device 10 further includes a tension adjustment mechanism 200 that applies tension to the warp threads of the beam 14 supported by the transfer arm 124.
including.

As shown in FIGS. 9 to 11, the tension adjustment mechanism 200 is angularly rotatable around an axis extending in a direction (lateral direction) parallel to the axis of the beam 14 supported by the transfer arm 124. A support arm 202 supported by one transfer arm 124, a case 204 supported by the support arm,
A rotation source 206 fixed to the case and a support arm 20
Case 2 can be rotated around an axis parallel to the rotation axis of Case 2.
04, a roller 210 rotatably supported by the shaft, a rotor 212 rotatably supported by the shaft 208, and a support arm 202.
A circular stator 214 is fixed to the transfer arm 124 so as to be centered on the rotation center of the rotor 212 , and a connecting body 216 is hung between the rotor 212 and the stator 214 .

Support arm 202 and stator 214 are located on opposite sides of transfer arm 124 by dowel 218 and nut 220, as shown in FIG.

The shaft 208 is connected to the case 20 as shown in FIG.
4 in a direction parallel to the center of rotation of the support arm 202, and the rotation source 206 rotates the bevel gear 222°22.
Rotated through 4.

The roller 210 is disposed at one end of the shaft 208 so as to be in contact with the outer peripheral surface of the flange 14a of the beam 14, and is also connected to the shaft 208 via a friction clutch 226.
It is connected to 8. The rotor 212 is connected to the shaft 208
The other friction clutch 2 is located at the other end.
It is connected to shaft 208 via 28.

In addition, in the illustrated example, the rotor 212 and the stator 214
is a sprocket and the link 216 is a chain, although other means may be used instead, such as timing pulleys and timing belts.

While receiving the warp-wound beam 14 on the transfer arm 124 and transferring the warp-wound beam 14,
The rotation source 206 of the tension adjustment mechanism 200 is rotated in one direction. As a result, since the rotational force in the counterclockwise direction in FIG. 10 acts on the rotor 212 via the friction clutch 228, the rotational force in the clockwise direction in FIG. is the support arm 20
It acts on 2.

Tension adjustment mechanism 200 is maintained in the position shown in solid lines in FIG. 10 when received in beam 14 or recess 128;
When the beam 14 is received in the recess 130, it is maintained in the position shown by the dash-dotted line in the figure. Additionally, if the roller 210 is not in contact with the beam 14, the support arm 202 will
Roller 210 is rotated angularly until it contacts flange 14a of beam 14. On the other hand, if the roller 210 comes into contact with the flange 14a of the beam 14, the friction clutch 228 will slip and the support arm 202 will not rotate any further.

When the rotation source 206 of the tension adjustment mechanism 200 is rotated, a counterclockwise rotational force is applied to the roller 21 in FIG.
0, a rotational force acts on the beam 14 in the clockwise direction in FIG. 10, that is, in the direction of winding up the warp threads. Therefore, if there is any slack in the warp threads extending from the beam 14, the warp threads will be wound around the beam 14 accordingly. When the tension of the warp threads extending from the beam 14 exceeds a value determined by the friction clutch 226, slippage occurs in the friction clutch 226.
Roller 210 does not rotate.

When a force for pulling out the warp yarns from the beam 14, that is, an excessive tension, acts on the tip of the warp yarns, the beam 14 is rotated in the direction of unwinding the warp yarns, so that the warp yarns are pulled out from the beam 14. At this time, the roller 210 is rotated by the rotation of the beam 14 in a direction opposite to the direction of rotation by the rotation source 206 against the force of the friction clutch.

When delivering the warp-wound beam 14, the dropper device with the warp passed through, the heald frame, and the reed to the delivery target device 12, the conveying device 10 moves the shaft portion 14b of the beam 14 into the recess 12.
8 and chuck the dropper device and heald frame 194.
and 196, and is moved to the delivery position.

At the time of delivery, the reed is removably locked to the heald frame. In addition, the leading edge 111 of the warp threads extending from the beam 14 is
It is attached to a reed. For this reason, the warp or dropper device,
There is no chance of it coming off the heald frame or reed.

While the transport device 10 is being moved to the delivery position, the moving platform 40
The arm 192 has been retracted to a predetermined position, the support bases 76 and 78 have been lowered to a predetermined height, and the transfer arm 124 is maintained in a predetermined position by the position adjustment mechanism 134.

Further, the warp threads wound around the beam 14 are passed through warp passing members such as a dropper device, a heald frame, and a reed, and are maintained at a predetermined tension by a tension adjustment mechanism 200.

When the transport device 10 is moved to the receiving position, first, the rotation sources 104 and 106 for the support stands 76 and 78 are rotated in the normal direction, and the support stands 76 and 78 are elevated to a predetermined height position. . As a result, the beam 14 is raised until the height position of its shaft portion 14b is slightly above that of the upper surface of the beam receiver portion 16, and the dropper device, heald frame, and reed are placed at their lower edges. is raised until it is above the top surface of the device 12 to be delivered.

Next, in order to deliver the beam 14, the rotation source 58 for the movable table 40 is rotated in the normal direction, and the movable table 40 is advanced a predetermined distance. As a result, the transfer arm 124 is advanced to a position where the recess 128 coincides with the recess 22 of the beam receiver 16 in the front-rear direction.

When the transfer arm 124 moves forward, if the transfer arm 124 is slightly deviated from the beam holder 16 in the direction along the rail 126, the transfer arm 124 will move toward the end surface 12 of the transfer arm.
4a and the beam holder are moved relative to the support base 76 by the joint action with the end surface 16a of the section 16, so that the transfer arm 124 and the beam holder in the direction along the rail 126 will not be affected by the relative positional deviation between the section 16. will be corrected automatically. Further, when the transfer arm 124 is moved relative to the support base 76, the transmission body 142 of the position adjustment mechanism 134 is moved, so that a force corresponding to the amount of movement of the transfer arm 124 is applied to the position adjustment mechanism 134.
34 in one of the springs 140.

The rotation ri, 104 for the support platform 76 is then reversed and the support platform 76 is lowered into position 5h. As a result, the transfer arm 124 is lowered to a position where the beam receiver is below the height position of the portion 16, and the beam 14 is lowered to the position where the beam receiver is lower than the height position of the transfer arm 1
From the recess 128 of 24 the beam receiver collapses into the recess 22 of part 16.

Next, the rotation 'rA58 for the moving table 40 is reversed, and
The moving table 40 is moved back a predetermined distance. As a result, the transfer arm 124 is moved to a position where the recess 130 coincides with the recess 22 of the beam receiver 16 in the front-rear direction.

Next, the rotation source 104 for the support stand 76 is rotated in the normal direction again, and the support stand 76 is raised to a predetermined position. As a result, the upper surface of the transfer arm 124 is connected to the shaft portion 14b of the beam 14.
The beam 14 is moved upward to a position slightly above the height of the beam 14, and the first sleeve portion 14b of the beam 14 is received in the recess 130.

Next, the rotation source 58 for the movable table 40 is further rotated in the normal direction, and the movable table 40 is further advanced a predetermined distance. As a result,
The transfer arm 124 is moved to a position where the recess 130 coincides with the recess 24 of the beam receiver part 16 in the front-rear direction,
The shaft portion 14b of the beam 14 is received in the recess 24. When the transfer arm 124 moves forward, the shaft portion 14b of the beam 14 is received in the recess 130, and the beam receiver is moved on the upper surface of the portion 16. Thereby, there is no possibility that a large rotational moment will act on the transfer arm 124.

Then, after the rotation source 104 for the support base 76 is reversed,
The rotation source 58 for the carriage 40 is reversed, thereby lowering the support platform 76 into position and retracting the carriage 40 into position. This causes the beam 14 to move into the recess 128.
The beam 14 is passed from 130 to the recess 22 to the recess 24, and the delivery of the beam 14 is completed.

During transfer of beam 14, rotation source 206 of tension adjustment mechanism 200 is rotated. For this reason, the bow length adjustment machine J+ is 2
Even when the transfer arm 124 is moved in the up-down direction and the front-back direction, the roller 210 of 00 moves the flange f4a of the beam 14 due to the angular rotational force acting on the support arm 202.
is in contact with. As a result, the rollers 210 apply a rotational force to the beam 14 in the direction of winding up the warp threads, and the tension of the warp threads is always maintained at a value determined by the friction clutch 226.

When the transfer arm 124 is separated from the beam receiver 16, the transfer arm 124 is moved by the spring 14 of the position adjustment mechanism 134.
The force accumulated at 0 causes the rail 1 to move against the support base 76.
26 and automatically returned to a predetermined position in the lateral direction.

Simultaneously with or after the delivery of the beam 14, the dropper device δ, the heald frame, and the reed are moved toward the reed by the operation of the dropper device, the heald frame, and the reed rotation source 106. While being moved, the rotation mechanism 178 is rotated in the normal direction. As a result, the link mechanism consisting of the link pieces 166 and 182 is extended, and the dropper device and the heald frame are moved to positions facing the dropper receiver section 18 and the heald frame receiver section 19, respectively, in the vertical direction. In this position, the dropper device and the heald frame are lowered to a predetermined position by normal rotation of the rotation source 106, and then lowered to a predetermined position by normal rotation of the rotation source 106.
The respective receivers are removed from the chucks 194 and 196 by the operator and transferred to the sections 18 and 19, respectively.

The reed is removed from the heald frame when the heald frame is transferred, and the reed holder is transferred to the section 20.

The rotation mechanism 178 is then reversed to retract the surface linkage mechanism. After that, the delivery of the beam 14 is completed,
With the movable table 40 being retracted to a predetermined position, the rotation source 106 for the support table 78 is reversed, and the support table 78 is returned to a predetermined height position.

When receiving the beam 14, dropper device, heald frame, and reed with warp wound thereon from the delivery target device 12, the transport device!
0 is operated in the opposite direction.

[Brief explanation of drawings]

FIG. 1 is a perspective view schematically showing the conveying device of the present invention, and FIG.
3 is an enlarged sectional view taken along line 3-3 in FIG. 2, and FIG. 4 is a rear view showing the conveying device of the present invention.
Figure 5 is an enlarged view taken along line 5-5 of Figure 'fJ3, showing the shape of the movable table for hemostasis with some members removed. Figure 6 is a cross-sectional view taken along line 6-6 in Figure 4, and Figure 7 is an enlarged view of the drive mechanism for the moving platform. 8 is an enlarged sectional view showing the position adjustment mechanism, and FIG. 9 is 9-91 of FIG. 4! 10 is an enlarged side view showing the tension adjustment mechanism, FIG. 11 is an enlarged view taken along line 11-11 in FIG. 10, and FIG. 10 is an enlarged view taken along line 12-12 in FIG. 10. FIG. 10・Transportation device, 12: Delivery target device 514:
Beam, 16: Beam receiver, 2nd: Trolley,
40: moving table, 56: drive mechanism for moving table, 76: supporting table, 104: rotation source for supporting table, 1
24: G arm, 200: Tension-1 adjustment mechanism, 202:
Support arm, 204: case, 206; rotation source,
208: shaft, 210: roller, 212: rotor, 214: stator, 216: chain, 22
6.228: Friction clutch.

Claims (7)

[Claims] (1) A device for adjusting the tension of the warp threads of a beam rotatably received by a conveying device for machinery, the device being capable of angularly rotating the warp threads of a beam parallel to the axis of the beam. an arm supported by means; a rotation mechanism supported by the arm; and a rotation mechanism arranged to be rotatable about a second axis parallel to the first axis and in contact with the beam; a warp tension adjustment device, comprising: a roller that applies a rotational force to the beam in a direction of winding the warp in response to the rotation of the beam; and a friction clutch arranged to transmit the rotation of the rotation mechanism to the roller. . (2) Furthermore, a rotor disposed rotatably around the second axis, another friction clutch that transmits rotation of the rotation mechanism to the rotor, and a rotor rotatably arranged around the first axis. a circular stator that is non-rotatably attached to the conveying device; and a circular stator that is arranged to extend from the stator through the rotor and back to the stator, and that is immovable relative to the stator in the circumferential direction thereof. Claim (1)
) The warp tension adjustment device described in ). (3) The rotation mechanism includes a shaft rotatably supported by the arm around the second axis, and a rotation source that rotates the shaft around the axis, and includes the rotor and the fixed The warp tension adjusting device according to claim 2, wherein the child is connected to the shaft via a corresponding friction clutch. (4) The rotor is connected to one end of the shaft via a corresponding friction clutch, and the stator is connected to the other end of the shaft via a corresponding friction clutch. The warp tension adjustment device according to (3). (5) The rotor and stator are sprockets,
The warp tension adjusting device according to claim 2, wherein the connecting body is an endless chain. (6) The warp tension adjusting device according to claim (1), wherein the roller is brought into contact with an outer peripheral surface of a flange of the beam. (7) A conveyance device for delivering a beam wound with warp threads to a loom or a preparation stand, the conveyance means being movable to a delivery position for the beam, and the conveyance means for delivering the beam. a delivery means disposed at and rotatably receives the beam around its axis; a drive means for displacing the delivery means with respect to the conveying means in order to deliver the beam; and a drive means supported by the delivery means. means for adjusting tension in the warp threads extending from the beam, the tension adjusting means being angularly rotatable about a first axis parallel to the axis of the beam received by the transfer means; an arm supported by the arm, a rotation mechanism supported by the arm, and a second axis parallel to the first axis.
a roller that is arranged to be rotatable around an axis and in contact with the beam, and applies a rotational force to the beam in a direction to wind up the warp yarns in response to the rotation of the rotation mechanism; and the rotation mechanism. and a friction clutch arranged to transmit the rotation of the warp beam to the roller.