JPH0561372B2 - - Google Patents

Description

Detailed Description of the Invention <Technical Field> The present invention relates to a loom equipped with a drum-type weft storage device that rotates either the drum or the yarn guide to wind and store the weft around the drum. The present invention relates to a startup preparation device that automatically winds a weft yarn around a drum when the drum is ready for startup.

<Background Art> As a conventional drum-type weft storage device, for example, as shown in Japanese Unexamined Patent Publication No. 120841/1984, either the drum or the yarn guide is rotated to wind the weft around the drum, and the weft is wound around the drum at a predetermined timing. There is a device that locks and stores the wound weft yarn using a locking body that operates.

By the way, when using this device, it is necessary to wind the weft yarn around the drum in a state that matches the starting phase before starting.

However, in the past, the weft storage device had to be operated manually to maintain that state, which made the work complicated, and there was a strong desire to be able to perform the start-up work easily.

As shown in Japanese Patent Application Laid-Open No. 58-214557, the weft storage device is connected to an auxiliary motor by an electromagnetic clutch, and prior to restarting operation, the auxiliary motor drives the weft storage device, and the weft storage device and the loom are connected. There are some that have a predetermined phase with the main shaft, but there is no specific disclosure of the control means, and the purpose is simply to correct the phase shift, so it is not useful when starting from a state where the weft is not wound. do not have.

<Object of the invention> The present invention has been made in view of the above-mentioned demands, and
It is an object of the present invention to enable easy preparation of a weft storage device at the time of startup.

<Structure of the Invention> Therefore, as shown in FIG. 1, the present invention detects the state of a clutch that is interposed in the power transmission system from the main shaft of the loom to the weft storage device and connects them only in one phase. a clutch state detection device that detects the weft storage device, a phase detection device that detects the phase of the weft storage device, and a thread winding drive device that can independently drive the weft storage device;
a manually operated switch for winding a bobbin; a drive device actuating means for receiving a signal from the switch and operating the drive device for winding a bobbin for a predetermined period of time when a clutch state detection device detects that the clutch is in a disengaged state;
During the operation of the means, the clutch is activated at a timing that is substantially shifted to the delayed side from the point in time when the phase of the weft storage device becomes the clutch connection phase with respect to the main shaft phase at the time of starting, based on a signal from the phase detection device. A clutch switching means for switching to a connectable state is provided, and after adjusting the phase of the main shaft of the loom to the starting position, preparations for weft storage operation can be made only by operating a manually operated switch for thread winding. It is.

<Example> Examples will be described below.

In FIG. 2, 1 is the frame of the loom, 2 is the warp, 3 is the back roller, 4 is the heddle, 5 is the reed, 6 is the loom, 7 is the woven fabric, and 8 is the breast beam. 9
A and 9B are yarn feeders for the weft yarns 10, and are supported by a holder 11 attached to the frame 1.
Reference numeral 12 denotes an air tensor, which is supported by stays 13 and 14 attached to the frame 1, and applies an air flow to the weft yarns 10 from the yarn supplying bodies 9A and 9B in a direction opposite to the direction in which the weft yarns travel. Apply tension. 15 is a drum type weft storage device,
The weft 10 guided from the air tensor 12 via the guide pulley 16 is measured and stored. Reference numeral 17 denotes a main nozzle for inserting the weft, which inserts the weft 10 guided from the weft storage device 15 via the guide mail 18 into the opening of the warp 2. Reference numeral 19 denotes a weft insertion yarn removing device, which is disposed between the main nozzle 17 and the two warp yarn rows. Reference numeral 22 denotes a yarn end suction device, which is arranged on the side opposite to the weft insertion side. 21 and 22 are cutters.

First, the air tensor 12 will be explained with reference to FIG.

The tips of the air injection nozzles 26 and 27 are inserted into both ends of the transparent resin pipe 25, and the band 2
8 and 29. These nozzles 2
Since nozzles 6 and 27 have the same structure, the nozzle 27 will be explained as a representative. The inner hole of the nozzle outer cylinder 30 has a large diameter part 30a on the proximal side and a small diameter part 30b on the distal end side, and a thread guide tube 32 having a thread passage hole 31 is inserted from the large diameter part 30a side to the distal end thereof. part to small diameter part 30
b and is fixed with screw 33. In this way, the small diameter portion 30b of the nozzle outer cylinder 30 and the thread guide tube 32
An annular nozzle orifice 34 is formed between the tip and the tip. Further, a connector 35 is fixed to the nozzle outer cylinder 30 so as to face inside the large diameter portion 30a.

Here, the air injection nozzle 26 is provided on the inlet side of the weft 10, and when setting the weft 10, sprays pressurized air introduced through the pressure air supply pipe 211 in the same direction as the traveling direction of the weft 10. Then, the weft yarn 10 is drawn through the pipe 25.

Further, the air injection nozzle 27 is provided on the exit side of the weft 10, and is always connected to the pressure air supply pipe 214.
The pressurized air introduced through the weft 10 is injected in a direction opposite to the traveling direction of the weft 10 and is applied to the weft 10.

Next, the weft storage device 15 and its driving device are connected to the fourth
This will be explained with reference to FIGS.

Referring to FIGS. 4 to 6, a gear box 42 of a weft storage device 15 is fixed to the frame 1 via brackets 40 and 41. gearbox 42
A rotary shaft 44 is rotatably supported via a bearing 43.

A stationary support 46 is attached to the tip of the rotating shaft 44 via a bearing 45, and a drum 48 is fixed to the stationary support 46 with bolts 47. A plurality of permanent magnets 49 are also fixed to the stationary support 46, and, facing these permanent magnets 49, a plurality of permanent magnets 51 are fixed to a fixed support 50 fixed to the gearbox 42. The magnets 49 and 51 have opposite poles different from each other, and their attractive force causes the stationary support 46 and therefore the drum 4
8 is kept stationary.

An insertion hole 5 is formed in the axial center of the rotating body 44 from the base end side.
2 is formed, and a hollow thread guide pipe 53 is fixed thereto. The thread guide pipe 53 is designed to rotate between the magnets 49 and 51, and its tip is bent toward the drum 48 side. A thread guiding tube 55 having a thread passing hole 54 is inserted and fixed at the base end of the insertion hole 52 . Here, the weft 1
Nozzle port 56 for drawing air when setting 0
has been formed. The space behind the nozzle port 56 connects to the rotation shaft 44 through a communication hole 57 formed in the rotation shaft 44.
It communicates with an air chamber 58 surrounding it. Air chamber 5
8, pressurized air is introduced through a pressure air supply pipe 217. 219 is a flow rate adjustment valve. Further, a guide pulley 16 is provided near the entrance side of the thread guide tube 55 and is attached to a stay 59 fixed to the gear box 42.

A balloon cover 60 surrounds the drum 48 and is fixed to the bracket 40 via a stay 61.

A handwheel 62 is fixed to the rotating shaft 44, and a gear 64 is also fixed by a key 63. Of the gears 68 and 69 fixed by a key 67 to a shaft 66 rotatably supported in the gear box 42 via a bearing 65, the gear 68 is meshed with the gear 64. A gear 73, which is fixed by a key 72 to a shaft 71 which is rotatably supported in the gear box 42 via a bearing 70, is meshed with the gear 69. A gear 74 is fixed to the gear 73 with a bolt 75.

Further, a gear 79 is fixed to a shaft 77 rotatably supported by the gear box 42 via a bearing 76 with a key 78 and meshed with the gear 74.
A hollow shaft 80 having a slot in a portion is held and fixed to the end of the shaft 77 by a fastener 81. A ring 82 is fitted onto the hollow shaft 80 and fixed with bolts 83.

84 is a drive shaft driven by the main shaft of the loom (252 in FIG. 15). A toothed pulley 85 is fixed to the drive shaft 84, and a toothed belt 89 is stretched between the toothed pulley 88 and a toothed pulley 88 fixed by a key 87 to a shaft 86 rotatably supported on the frame 1. . A joint 90 is fixed to the protruding end of the shaft 86, and one end of a shaft 92 with a spline 91 is fixed via the joint 90. The other end of the shaft 92 has a connecting body 96 having a flange 93 at one end and one tooth (single recess) 95 of a meshing clutch 94 (meshing in only one phase) at the other end. It is rotatably supported via a bearing 97. The flange 93 is integrally fixed to the ring 82 with bolts 98. Further, a switching body 100 formed with the other tooth (single convex portion) 99 of the meshing clutch 94 is attached to the intermediate spline 91 of the shaft 92 so that it can freely slide in the axial direction and be integrated in the rotational direction. It is fitted. The switching body 100 is connected to the flange 1 of the joint 90.
A compression spring 102 interposed between the clutch and the clutch 101 is biased to the left in FIG. 6, thereby causing the dog clutch 94 to engage.

Reference numeral 103 is a switching lever, and rollers 104 and 105 provided at the forked portion at one end are connected to the switching body 1.
It is inserted into the groove 106 of 00. Figures 7 and 8
Referring to the figure, this switching lever 103 is rotatably attached to a shaft 108 of a bearing 107 fixed to a bracket 41, and a pin 111 provided on a support 110 is inserted into a long hole 109 provided at the other end. It is fitted. This receiver 110 is attached to the bracket 11 on the bracket 41.
It is screwed onto the tip of a piston rod 115 of an air actuator 114 which is fixed via a stay 113 and a stay 113, and is fixed with a lock nut 116. Reference numeral 117 is a bolt serving as a stopper that is screwed into a stay 118 fixed to the bracket 112 and fixed with a lock nut 119, and is used as a stopper when the piston rod 115 of the air actuator 114 is protruded (when the dog clutch 94 is disconnected). 110 to restrict its position.

The gear 1 is also connected to the shaft 71 via a bearing 121.
22 is rotatably supported, and a suction plate 124 of an electromagnetic clutch 123 is loosely fitted. The gear 122 and the suction plate are always engaged in the rotational direction by the pin 125. A friction plate 126 is also attached to the shaft 71, and a key 127 is attached to the shaft 71, with a friction plate 126 facing the suction plate 124.
At the same time, an electromagnet 129 is rotatably supported via a bearing 128. As shown in FIG. 9, this electromagnet 129 is prevented from rotating by being fixed to the gearbox 42 via a stay 139.
It is opposite to 24. The gear 122 has a bracket 13 attached to the gearbox 42 as shown in FIG.
A small motor 132 for thread winding fixed via 1
A gear 134 fixed to an output shaft 133 is meshed with the output shaft 133.

The gear 74 of the shaft 71 is also connected to a shaft 13 rotatably supported in a gearbox 42 as shown in FIG.
The shaft 135 is meshed with a gear 136 fixed to the shaft 135, thereby rotating the shaft 135. Cams 137 and 138 are fixed to the shaft 135.
In addition, the bracket 1 fixed to the gear box 42
A lever 141, 1 is attached to a fixed shaft 140 protruding from 39.
42 is rotatably pivoted, and cam rollers 143, 144 are attached to these levers 141, 142. Then, the levers 141, 142 are biased counterclockwise in FIG. 4 by tension springs 145, 146 whose ends are locked to the levers 141, 142, and the cam rollers 143, 144 are brought into contact with the cams 137, 138. There is. Reference numeral 147 designates a stud projecting from the bracket 139, which serves both as a lock for the other ends of the tension springs 145 and 146 and as a stopper for release levers 162 and 163, which will be described later.

A holder 148 fixed to the bracket 139
Sliding rods 149, 150 are slidably inserted through the slide rods 149, 150, and drive frames 151, 152 are fixed to the base ends of the sliding rods 149, 150. Drive frame 151,
The tips of the levers 141, 142 are inserted into the frames 152, and rollers 153, 154 attached to the tips are brought into contact with the inner surfaces of the drive frames 151, 152. Therefore, the sliding rod 149,1
50 is reciprocated at predetermined timing by the cams 137 and 138. Sliding rod 149, 150
Insert locking pins 155 and 156 into the tip of the
It is fixed with lock nuts 157 and 158. In this way, due to the reciprocating movement of the sliding rods 149, 150,
The locking pin 155 is arranged so that the locking pin 155 enters or exits the hole 159 at the boundary between the tapered portion 48a and the straight portion 48b of the drum 48.
is configured to enter or exit through a hole 160 in the ballooning cover 60 into a hole 161 in the straight portion 48b of the drum 48.

Reference numerals 162 and 163 are release levers, which are rotatably connected to a shaft 164 fixed to the bracket 139, and their tips are connected to the levers 141 and 14.
It faces rollers 165 and 166 installed between the two. Therefore, these release levers 16
2, 163 in the counterclockwise direction in FIG. 4, the levers 141, 142 are rotated clockwise, and the locking pins 155, 156 are moved out of the holes 159, 161 of the drum 48. be able to.

Therefore, the rotation of the rotation shaft 44 of the weft storage device 15, that is, the rotation of the yarn guide pipe 53, and the locking pin 15
5, 156 is operated by the drive shaft 84 via the dog clutch 94, but the dog clutch 94 is switched to the disengaged state, the electromagnetic clutch 123 is connected, and the bobbin winding motor 13 is operated.
This can also be done by activating 2.

167 (FIGS. 4 and 5) is a proximity switch that detects when the thread guide pipe 53 has come to the upper side, and is fixed to the gear box 42 via a bracket 168.

Reference numeral 169 (FIGS. 6 and 7) denotes an iron piece that is clamped and fixed to the hollow shaft 80, and 170 is a proximity switch that detects the proximity of the iron piece 169, which is fixed to the bracket 41. Here, the iron piece 169 and the proximity switch 170
The rotation angle of the main shaft of the loom (252 in Fig. 15) is 300 degrees (assuming 0 degrees when beating the reed).

171 and 172 (FIG. 7) are limit switches fixed to the bracket 41 via brackets 173 and 174 and arranged on both sides of the switching body 100.
One limit switch 171 is turned on only when the dog clutch 94 is engaged, and the other limit switch 172 is turned on when the dog clutch 94 is engaged.
It is set to turn on only when the power is off.

Next, the weft insertion yarn removing device 19 will be explained with reference to FIGS. 10 to 13.

180 is a threaded sword, and a reed holder 181 is fixed to the upper end thereof. Reed holder 18
The lower frame of the reed 5 is inserted together with a wedge 183 into the groove 182 of No. 1, and the wedge 183 is fixed by being pushed in with a bolt 184. The reed feathers 185 of the reed 5 have recesses 186 on the side of the fabric facing 6, and the rows of recesses 186 form weft guide grooves 187 (see FIG. 15). The main nozzle 17 is fixed to the weft insertion side end of the reed holder 181 and is opposed to the weft guide groove 187. Further, auxiliary nozzles 189 are attached to the reed holder 181 at appropriate intervals in the weft insertion direction via holding blocks 188, and are oriented obliquely to the weft guide groove 187.

190 is a cutter holder, to which a fixed blade 191 of the cutter 21 is fixed. The movable blade 192 of the cutter 21 is fixed to a shaft 193 rotatably supported by the cutter holder 190, and this shaft 193 is attached to the main shaft of the loom (252 in FIG. 15).
A drive lever 194 driven by a cam (not shown) that rotates in synchronization with the rotation of the drive lever 194 is fixed.
Here, the cutter 21 is arranged so as to be located in a space 195 where the reed feathers on the weft insertion side of the reed 5 are removed during reed beating, and more specifically, the cutter 21 is placed in a space 195 where the reed blades on the weft insertion side of the reed 5 are removed. Perform cutting movements.

196 is a pipe constituting the weft insertion yarn removing device 19, the middle part of which is flattened and flattened;
A guide hole 197 is formed in the center thereof. The pipe 196 has its upper end attached to the upper frame of the reed 5 with a bolt 19.
8, and is positioned between the cutter 21 and two rows of warp threads so that the axis of the guide hole 197 coincides with the axis of the main nozzle 17 and the weft guide groove 187. It is arranged so that A conductive path 200 is formed in the connecting body 199 and communicates with the pipe 196.
00 is connected to a flexible pipe 201.
As shown in FIG. 15, a pipe 234 from a pressure air supply source 210 is connected to this pipe 201 via a flow rate regulating valve 235 and a solenoid valve 236. Further, a flexible pipe 202 is connected to the lower end of the pipe 196, and this pipe 202 is connected to the blower 244 through a filter 244 and a pipe 245 as shown in FIG.
It is connected to the suction port.

As shown in FIG. 14, it can also be applied to an air-injection type loom using a guide device in which a guide 207 having a guide hole 205 and a weft exit gap 206 is arranged in parallel, and in this case, the removal pipe 196 is Guide hole 1
97 is made to face the guide hole 205 of the guide element 207.

Next, the air supply system will be explained with reference to FIG. 210 is a pressurized air supply source.

A pipe 211 is connected to the weft drawing nozzle 26 of the air tensor 12 from a pressure air supply source 210.
Solenoid valve 212 and flow rate adjustment valve 2
Pressurized air is supplied via 13. Further, pressure air is supplied to the weft tension applying nozzle 27 from a pressure air supply source 210 through a pipe 214 through a solenoid valve 215 and a flow rate adjustment valve 216. In addition, these flow rate adjustment valves 213 and 216 are the flow rate adjustment valve 213.
It is adjusted so that the flow rate is larger.

A pressurized air supply source 21 is provided in the air chamber 58 to the nozzle port 56 of the weft drawing air of the weft storage device 15.
Solenoid valve 21 by pipe 217 from 0
Pressure air is supplied through the flow control valve 8 and the flow rate adjustment valve 219.

The air actuator 114 for switching the dog clutch 94 is supplied with pressurized air from a pressure air supply source 210 through a pipe 220 and a solenoid valve 221. However, the solenoid valve 221 opens the air actuator 114 side to the atmosphere in a closed state.

A pipe 222 from a pressure air supply source 210 is connected to the main nozzle 17 via a pressure regulator 223, a solenoid valve 224, and a mechanical valve 225. The mechanical valve 225 is configured to open at a predetermined rotation angle of the main shaft 252 of the loom. In addition, these pressure regulating valves 223 and solenoids 2
24 and mechanical valve 225, a pipe 226 from the pressurized air supply 210.
are connected via a solenoid valve 227, a flow rate adjustment valve 228, and a check valve 229.

A pipe 232 from an auxiliary nozzle tank 231 connected to a pressure air supply source 210 via a solenoid valve 230 is connected to the auxiliary nozzle 189 via a mechanical valve 233. The mechanical valve 233 is provided for each auxiliary nozzle 189 or for each group thereof, and is configured to open at a predetermined rotation angle of the main shaft 252 of the loom.

Removal pipe 196 of weft insertion yarn removal device 19
A pipe 2 connected to the upper end of the pipe via a connecting body 199
01 is a pipe 23 from a pressurized air supply source 210
4 as the flow rate adjustment valve 235 and the solenoid valve 23
It is connected via 6. Also, this pipe 20
1 includes a pipe 237 from the pressurized air supply source 210.
A pipe 240 branched from downstream of the solenoid valve 238 of an air circuit that sends pressurized air to an air actuator 239 for applying warp tension through a solenoid valve 238 is connected through a check valve 241 and a flow rate adjustment valve 242. .

The lower end of the removal pipe 196 and the yarn end suction device 20 on the side opposite to the weft insertion are connected to pipes 202 and 20, respectively.
Filter 244 and pipe 245 by 243
It is connected to the suction port of the blower 246 via.

Next, the drive section of the loom will be explained with reference to FIG. 15.

A pulley 251 is fixed to the output shaft of the main motor 250, and a belt 254 is stretched between this pulley 251 and a pulley 253 fixed to the main shaft 252.
A main shaft 252 is driven. In addition, the electromagnetic brake 2 connected to the output shaft of the main motor 250
55, the main shaft 252 is braked. Reference numeral 256 is a small inching motor, and its output shaft is connected to the pulley 251 via an electromagnetic clutch 257, so that the main shaft 252 can be driven at a slow speed.

Then, a gear 258 is fixed to the main shaft 252,
This gear 258 and a gear 259 fixed to the drive shaft 84 are meshed with each other to drive the drive shaft 84.

Here, the solenoid valve 212,
215, 218, 221, 224, 227, 23
0,236,238, electromagnetic clutch 123, thread winding motor 132, block 246, main motor 2
50, electromagnetic brake 255, inching motor 256, electromagnetic clutch 257, proximity switch 16
7,170 and limited switch 171,17
2 is connected to the control device 300.

Control device 300 is composed of a microcomputer.

Referring to Figure 6, 301 is the CPU, 302 is
RAM, 303 is ROM, 304 is bus line,
305 is an input interface, and 306 is an output interface.

307 is a rotating disk that rotates in synchronization with the main shaft 252 of the loom and has protrusions 308 around it, for example, every 1°;
Reference numeral 309 is an angle sensor that outputs an angle signal according to the protrusion 308 by facing the protrusion 308 of the rotating disk 307, and the signal from the angle sensor 309 is sent to the input interface 305.
Input via .

310 is a switch for preparing to start the loom; 31
1 is a switch for operating the loom, 312 is a switch for stopping the loom, 313 is a switch for reverse inching, 314 is a switch for forward inching, 315
is a 1-cycle reverse inching switch, 316
31 is a start position adjustment switch for adjusting the phase of the main shaft 252 of the loom to the start position;
7 is a thread winding switch for winding the thread onto the drum 48 in order to adjust the phase of the weft storage device 15 to the start position; 318 is a manual clutch disengagement switch for disengaging the clutch 94 during manual operation of the loom; 319 is a switch for disengaging the weft 10; This is a switch for pulling the thread through the air tensor 12, the weft storage device 15, and the main nozzle 17, and signals from these are also input via the input interface 305. The pull-through switch 319 is an automatic return type foot switch, and the others are automatic return type push button switches.

320 is a weft feeler that detects defective weft insertion;
The 321 weft is a warp feeler that detects warp breakage, and signals from these are also input via the input interface 305.

Numerals 322 to 327 are presetters for various angles and times, and signals from these are also input via the input interface 305.

Of course, signals from the proximity switches 167, 170 and limit switches 171, 172 are also input via the input interface 305.

328 to 336 are the solenoid valves 21
2,215,218,221,224,227,
Driver for driving 230, 236, 238, 33
7 is a driver for driving the electromagnetic clutch 123;
338 is a driver for driving the bobbin winding motor 132, 339 is a driver for driving the blower 246, 340 is a driver for driving the main motor 250, 341 is a driver for driving the electromagnetic brake 255, and 342 is the inching motor. 256
A driving driver 343 is the electromagnetic clutch 2
This is a driver for 57 drive. These drivers 328 to 343 are connected to output interface 306.

Reference numeral 346 is an operation display lamp, and 347 is a driver for driving the operation display recessed lamp 346. This driver 347 is also connected to the output interface 306.

Here, the CPU 301 performs input/output and arithmetic processing according to a program based on the flowcharts of FIGS. 17 and 18. However, there are two CPUs 301, and one is the first
One operates according to the flowchart of FIG. 7, and the other operates according to the flowchart of FIG. 18.

First, the operation of the above-mentioned apparatus will be explained with reference to the flowchart shown in FIG.

When starting the loom, when a predetermined length of weft is wound around the drum 48 and the loom is ready to start,
First, the start preparation switch 310 is closed.

Then, the blower 246 is driven, and then the electromagnetic clutch 257 that connects the output shaft of the main motor 250 and the inching motor 256 is turned off (disconnected). The arranged solenoid valve 224,
Solenoid valve 230 disposed upstream of tank 231 to auxiliary nozzle 187 is closed.

Next, the operating switch 311 is closed.

Then, the electromagnetic brake 255 is turned off and the main motor 250 is driven. Therefore, the main shaft 252 is rotationally driven via the pulley 251, belt 254, and pulley 253, and the loom is operated.

During operation of the loom, the main shaft 252 causes the gears 258,
The drive shaft 84 is rotationally driven via the shaft 259. The shaft 86 is rotationally driven by the drive shaft 84 via the toothed pulley 85, the toothed belt 89, and the toothed pulley 88, and the switching body 100 is further rotationally driven via the joint 90 and the shaft 92. And the switching body 100
The connecting body 96 is rotationally driven via the dog clutch 94, and the shaft 77 is further rotationally driven via the bolt 98, ring 82, bolt 83, and hollow shaft 80. Then, the shaft 71 is rotationally driven by the shaft 77 via the gears 79 and 74. At this time, axis 7
1 rotates once for each rotation of the main shaft 252.

Rotation of gear 74 on shaft 71 causes shaft 135 to rotate via gear 136 meshing therewith.
At this time, the shaft 135 also rotates once for each rotation of the main shaft 252. Then, as the shaft 135 rotates, cams 137 and 138 fixed thereto rotate.
Cam rollers 143, 144, levers 141, 14
2, rollers 153, 154, drive frames 151, 15
2, the sliding rods 149, 150 reciprocate at predetermined timing. As a result, the locking pin 15
5,156 enters and exits the holes 159, 161 of the drum 48 at predetermined timing.

On the other hand, the rotation of the shaft 71 causes the gear 73 fixed thereto to rotate, and the shaft 66 to rotate via the gear 69. Then, due to the rotation of the shaft 66, the gear 6
The rotary shaft 44 rotates via 8 and 63. At this time, the rotating shaft 44 rotates four times for each rotation of the main shaft 252. As a result, the yarn guide pipe 53 rotates around the drum 48 and winds the weft yarn 10 around the drum 48.

In this way, by rotating the yarn guide pipe 53, the weft yarn 10 for one weft insertion is wound around the straight portion 48b between the locking pins 155 and 156 just before weft insertion.

When it comes time to insert the weft, the first thing to do is to use the mechanical valve 2.
25 closes and pressurized air is injected from the main nozzle 17. Immediately after this, the locking pin 156 exits from the hole 161 and releases the locking of the weft 10, so the weft 1
0 is indexed by air jet from the main nozzle 17 and inserted into the weft guide groove 187 via the guide hole 197 of the removal pipe 196. In conjunction with this, the auxiliary nozzle 1 is activated slightly before the tip of the weft 10 reaches the
The mechanical valve 233 of 89 opens and blows out air from the auxiliary nozzle 189, blowing off the tips of the weft yarns 10 one after another. The mechanical valve 233 of the auxiliary nozzle 189 through which the tip of the weft yarn 10 has passed is closed and air injection is stopped. The insertion of the weft yarn 10 ends when the weft yarn 10 is locked by the locking pin 156, but just before this, the mechanical valve 225 closes to stop the air injection from the main nozzle 17.

During the beating process, the locking pin 156 is inserted into the hole 16.
1, the locking pin 155 exits from the hole 159, and the weft 10 wound around the tapered portion 48a
(approximately one weft insertion) is transferred to the straight portion 48b, and then the locking pin 155 again enters the hole 159 to lock the weft 10 that is continuously wound again. In this state, the machine waits until the next weft insertion.

In addition, the solenoid valve 216 is the main power source of the loom.
The valve opens at the same time when the nozzle 27 is turned on, and a weak airflow is constantly ejected into the pipe 25 from the nozzle opening 34 of the nozzle 27, indexing the weft 10 in the opposite direction to its traveling direction, that is, from the drum 48 side to the yarn supplying body 9a side. Thus, tension is applied to the weft yarn 10.

While the loom is operating, signals from the weft filler 320, warp filler 321, and stop switch 312 are monitored. For example, if a weft insertion failure occurs and a stop signal is issued from the weft filler 320, the stop angle is changed. After setting the opening to 180°,
The solenoid valves 224 and 230 are closed to prevent the injection of excess air, the main motor 250 is turned off, and the electromagnetic brake 255 is turned off.
Turn on.

In addition, when a warp yarn breakage occurs and a stop signal is issued from the warp feeler 321, or when the stop switch 312 is closed, the loom is stopped in the same way, but in this case, the stopping angle is set to the warp 2.
The electromagnetic brake 255 and the like are activated.

In this stopping process, the weft yarn 10 that has failed to be inserted is beaten and cut by the cutter 21, and the next weft insertion is carried out by the solenoid valve 22.
4,230 by residual air in the downstream piping system. Then, it stops at approximately 200 to 300 degrees in the middle of the reed stroke. This last weft 10 is not cut by the cutter 21 and continues to the main nozzle 17 side.

Next, it is determined whether or not a pulse signal is input from the angle sensor 309 within a predetermined time, and when the pulse signal is no longer input, it is determined that the loom has stopped.

After determining the stop, the current rotation angle, that is, the stop angle read from the pulse signal of the angle sensor 309 is compared with the set stop angle.

When the actual stopping angle exceeds the set stopping angle (this is almost the case in the case of stopping due to defective weft insertion), turn on (connected state) the electromagnetic clutch 257 for connecting the inching motor 256, and After lighting the operation display lamp 346,
A clutch disengagement signal is generated to disengage the dog clutch 94.

Meanwhile, another CPU is operating according to the flowchart shown in FIG. That is, first, it is determined whether or not the main motor 250 is on as an interlock, and if it is not on, it is therefore determined whether or not a clutch disengagement signal has been generated except during normal operation.
(first time only) and manual clutch disengagement switch 31
8 is closed or not. and,
The first time the clutch disengagement signal is generated, the solenoid valve 221 is opened to send pressurized air to the air actuator 114, and the piston rod 1 is
15 is projected, the switching lever 103 is rotated clockwise in FIG.
0 to the right to disengage the dog clutch 94. At this time, when it is confirmed that the limit switch 172 is turned on, the clutch answer signal is turned off and outputted to the CPU, which operates according to the flowchart in FIG.
Solenoid valve 236 and blower 246 are turned on for a predetermined period of time.

In the flowchart of FIG. 18, when the manual clutch disengagement switch 318 is closed, the valve 221 is opened, the dog clutch 94 is disengaged, and after confirming that the limit switch 172 is turned on, , the clutch answer signal is turned OFF and output. Furthermore, after the above operation is performed by generating a clutch disengagement signal or closing the manual clutch disengagement switch 318, whether or not the pull-in switch 319 is closed or not, and whether the thread winding switch 31
7 is closed or not.

Returning to the flowchart in Figure 17, another CPU
When it is confirmed that the clutch answer signal from
55 is turned off, and the main shaft 252 is reversed by the inching motor 256 via the electromagnetic clutch 257. At this time, since the clutch 94 is in the disengaged state, only the loom side is driven, and the weft storage device 15
is not driven.

Then, when the angle signal from the angle sensor 309 is detected and the set stop angle is reached, the inching motor 256 is turned off, the electromagnetic brake 255 is turned on to perform braking, and the lamp 346 is turned off.

If the actual stopping angle does not exceed the set stopping angle, then it is determined whether the actual stopping angle and the setting stopping angle match, and if they match, the stop is continued. continue. If they do not match, that is, if the actual stop angle does not reach the set stop angle (this is almost the case in the case of a stop due to warp breakage), turn on the electromagnetic clutch 257 (connected state). , also lamp 34
After turning on the inching motor 256, the inching motor 256 is turned on and driven forward, and the electromagnetic brake 2 is turned on.
55 is turned off, and the loom and the weft storage device 15 are driven in normal rotation at a slow speed. Then, when the set stop angle is reached, the inching motor 256 is turned off and the electromagnetic brake 255 is turned on to perform braking.
Also, the lamp 346 is turned off.

After stopping at the set stop angle, if the stop is due to defective weft insertion, the solenoid valve 236 is opened and the blower 246 is operated. When the solenoid valve 236 is opened, a jet airflow is generated from the upper side of the removal pipe 196 to the lower side across the guide hole 197 via the pipe 201 and the connecting body 199, and when the blower 246 is operated, the removal pipe A suction airflow is created below 196.

In this way, the guide hole 19 is caused by the jet air flowing downward in the pipe 196 and crossing the guide hole 197.
Blowing the weft 10 inserted through thread 7 downward,
The blown weft yarn 10 is sucked into the lower side of the pipe 196 by the suction airflow by the blower 246, and the last weft insertion yarn is pulled out from the warp opening.

This operation is performed for a preset time, and when the preset time has elapsed, the solenoid valve 236 is closed and the blower 246 is turned off.

In this example, the removal airflow is generated after the loom stops to remove the last inserted weft yarn, but the removal airflow is generated along with the operation of the electromagnetic brake 255, and the removal action is also performed during the stopping process. You may also do this.

After the weft insertion is stopped due to a weft insertion failure and the last weft is automatically removed, the operator closes the one-cycle reverse inching switch 315 from that state.

Once the one-cycle reverse inching switch 315 is closed, the electromagnetic clutch 25 can be activated by pressing it momentarily.
7 is on, the lamp 346 is on, and a clutch disengagement signal is generated.If the clutch 94 is already disengaged and the clutch answer signal is off, then after confirming that the limit switch 172 is on, the inching motor 256 is turned on. The electromagnetic brake 255 is turned off and the main shaft 252 of the loom is reversed at a slow speed. At this time, since the clutch 94 is in the disengaged state, the length measurement and storage of the weft yarn 10 is not performed, and the weft yarn 10 is not wasted. Thereafter, when the inching motor 256 is turned off, the electromagnetic brake 255 is turned on, and the lamp 346 is turned off after one cycle of reverse rotation to the set stop angle (180°), the motor stops.

In this state, the weft yarn 10 that has become defective in weft insertion is manually pulled out.

During this stop, the reverse inching switch 3
13, the main shaft 252 of the loom can be intermittently reversed at a slow speed while the forward rotation inching switch 314 is closed. , the main shaft 252 of the loom (if the clutch 94 is not disengaged, the main shaft 252 and the weft storage device 15) can be rotated normally at a slow speed.

After pulling out the weft thread 10 that has become defective in weft insertion, the main shaft 2 must be
52 and the weft storage device 15 must be brought into a state consistent with the closed start (300°). still,
At this time, the phase of the main shaft 252 is 180 degrees, and the phase of the weft storage device 15 is at a stop angle of 200 to 300 degrees.

For this reason, the operator usually operates the start positioning switch 316 and the thread winding switch 317.
Conclude in this order.

First, when the start positioning switch 316 is closed, the electromagnetic clutch 257 is turned on, the lamp 346 is turned on, and a clutch disengagement signal is generated, as shown in the flowchart of FIG. After confirming that the limit switch 172 is turned on, the inching motor 256 is turned on, the electromagnetic brake 255 is turned off, and the main shaft 2 of the loom is turned on.
52 at a slow speed. Then, when the inching motor 256 is turned off, the electromagnetic brake 255 is turned on, and the lamp 346 is turned off when the rotation is reversed to 300 degrees at which the mouth is closed, the machine stops. Now spindle 2
52 alignment is completed.

Next, if the thread winding switch 317 is closed,
In the flowchart of FIG. 18, the solenoid valve 236 is opened and the blower 246 is operated to generate a suction airflow from the upper side of the guide hole 197 of the removal pipe 196 to the lower side. Immediately after this airflow is generated, the electromagnetic clutch 123 and the thread winding motor 132 are turned on for a predetermined period of time.

As a result, the electromagnet 12 of the electromagnetic clutch 123
9 sucks the suction plate 124 and presses it against the friction plate 126, and connects the output shaft 133 of the thread winding motor 132, the gear 134, the gear 122, the pin 125, and the suction plate 12.
4. Rotate the shaft 71 at a slow speed via the friction plate 126 and key 127. The gear 7 rotates due to the rotation of the shaft 71.
4, 136 to drive the shaft 135 and therefore the cams 137, 138 to lock the locking pin 15.
5,156 enters and exits. On the other hand, in conjunction with this movement, that is, due to the rotation of the shaft 71, the gear 7
The rotating shaft 44 is rotated via the shaft 66 and the gears 68 and 64, and the weft 10 is wound around the drum 48 by the thread guide pipe 53.

Then, when the phase of the weft storage device 15 reaches 300°, the iron piece 169 faces the proximity switch 170 and the proximity switch 170 is turned on.
Specifically, when the pulse signal emitted from the proximity switch 170 falls, the solenoid valve 221 is closed. Then, air actuator 114
The piston rod 115 is pulled in by a spring (not shown) inside, and the elastic force of the spring 102 causes the switching body 100 of the dog clutch 94 to move to the seventh position.
It is moved to the left in the figure, that is, to the side of the connecting body 96, so that the convex portion 99 on the end surface of the switching body 100 comes into contact with the end surface of the connecting body 96. This clutch 94 is designed to engage only in one phase (300°), and the phase of the weft storage device 15 has already passed 300°, so at this time, the convex portion on the end face of the switching body 100 is not yet engaged. 99 does not engage with the recess 95 on the end surface of the connecting body 96,
Limit switch 171 is off and limit switch 172 is on. In this way clutch 94
When the bobbin winding motor 132 further rotates with the switching body 100 and the connecting body 96 in contact with each other, the next
When the angle reaches 300°, the convex part 99 finally becomes the concave part 9.
Enter 5 and engage. In this state, even if the bobbin winding motor 132 is on, the convex portion 99 and the concave portion 95
Due to the load on the main shaft 252 side due to the meshing with the
The thread winding motor 132 does not rotate, and the weft storage device 15 does not operate. Thereafter, as time passes, the electromagnetic clutch 123 is turned off and the bobbin winding motor 132 is turned off.At this stage, due to the loss of rotational torque, the switching body 100 is completely moved to the left by the spring 102, and the dog clutch 94 is turned off. The convex portion 99 and the concave portion 95 are completely engaged, and the limit switch 171 is turned on and the limit switch 172 is turned off. In addition, the thread winding motor 13
If the ON time of 2 is set to be short so that the inertia rotates immediately before the meshing timing, the meshing will be smooth.

During this time, it is determined whether or not the limit switch 171 is on.
When turned on, the solenoid valve 236 is closed and the blower 246 is turned off.

As a result, the yarn guide pipe 53 rotates one rotation (4 rotations) from 300 degrees with respect to the phase of the loom, so during this period the yarn guide pipe 53 winds the weft yarn 10 around the drum 48, and the locking pins 155, 156 also close the holes 159. ,1
61 enters and exits at a predetermined timing,
When the locking pin 156 is withdrawn, it is sucked out by the suction airflow in the removal pipe 196, and
Weft yarn 1 between drum 48 and removal pipe 196
0 waits in a tense state.

Furthermore, since the clutch 94 is automatically disengaged and then reconnected to stop the drive, the loom is reset to a stopped state.
If the above-mentioned start operation (dry firing start) is performed in this state, the operation will start again.

That is, by closing the start preparation switch 310, it returns to its original position in the flowchart of FIG. 17, and by closing the operation switch 311, it starts operating again. It should be noted that the weft 10 between the main nozzle 17 and the removal pipe 196 is cut by the cutter 21 during the first blank firing.

When drawing the weft yarn 10 through the air tensor 12, the rotating shaft 44, the yarn guide pipe 53, and the main nozzle 17, the drawing switch (foot switch) 31 is activated before closing the thread winding switch 317 mentioned above.
Conclude 9.

Then, it is determined whether the proximity switch 167 is on or not, that is, whether the thread guide pipe 53 is at the upper side (a position where it is easy to work), and if it is not, the electromagnetic clutch 123 is turned on and the The thread winding motor 132 is driven.

As a result, the output shaft support 133, gear 134, gear 122, pin 125, suction plate 124, friction plate 1
26. Rotate the shaft 71 at a slow speed via the key 127. Rotation of shaft 71 drives shaft 135 through gears 74, 136, thus driving cam 13.
7,138 to lock the locking pins 155,156.
enter and exit. On the other hand, in conjunction with this movement, that is, due to the rotation of the shaft 71, the gears 73 and 6
9, shaft 66, rotating shaft 44 via gears 68, 64
is rotated, and the weft yarn 10 is wound around the drum 48 by the yarn guide pipe 53.

Then, the thread guide pipe 53 is connected to the proximity switch 16.
7, the electromagnetic clutch 123 and the thread winding motor 132 are turned off. The reason for doing this is to make it easier to work with the thread guide pipe 53 on the upper side.

And solenoid valves 212, 218, 2
27 is opened. In this way, air tensor 12
Pressurized air is injected from the weft thread drawing nozzle 26 , the weft thread drawing air nozzle port 56 in the rotating shaft 44 , and the main nozzle 17 . Since the flow rate from the nozzle 26 for drawing the weft is set to be larger than the flow rate from the nozzle 27 for applying tension, the air injected into the pipe 25 flows through the nozzle 27. It is ejected from the thread hole 31. For this reason, the weft 10 is passed through the thread hole 3 of the nozzle 26.
1, it is drawn into the pipe 25 by the suction airflow generated there, and then discharged from the thread passage hole 31 of the nozzle 27. Next, weft 1
0 into the thread passing hole 5 of the thread guide tube 55 of the rotating shaft 44.
4, it is sucked in by the suction airflow generated by the airflow ejected from the nozzle port 56 and flowing out from the tip of the yarn guide pipe 53 through the insertion hole 52, and the tip of the yarn guide pipe 53 is sucked in. The liquid is discharged between the ballooning cover 60 and the drum 48. Next, when the tip of the weft yarn 10 is passed through the guide 18 and brought to the inlet of the rear main nozzle 17, it is sucked in in the same manner as described above, and is discharged from the outlet. is inserted. In this way, the work of pulling the weft yarn 10 through each device can be easily performed.

When the drawing operation is completed, the drawing switch (foot switch) 319 is opened.

Then, based on whether the lead-in switch 319 has changed from on to off, the solenoid valve 2
12, 218, and 227 are closed, and the injection of air for drawing is stopped.

Then, the solenoid valve 236 is opened for, for example, 5 seconds set by the presetter to generate a downward airflow in the removal pipe 196, and the blower 246 is turned on for the same period of time to remove the filter 2.
44, removal pipe 196 via pipe 202
Actively sucks the downward airflow inside. As a result, the guide hole 197 of the removal pipe 196 can be removed as described above.
The tip of the weft yarn 10 that has been drawn through is sucked into the removal pipe 196.

After this, the thread winding switch 317 may be closed.

Although this embodiment shows a weft storage device 15 in which the yarn guide pipe 53 is rotated to wind the weft yarn around the stationary drum 48, the present invention is designed to rotate the yarn guide pipe 53 and wind the weft yarn around the stationary drum 48. The present invention can also be applied to a weft storage device in which the weft is wound around a drum by rotation.

<Effects of the Invention> As explained above, according to the present invention, after adjusting the phase of the main shaft of the loom to the starting position, it is possible to prepare the weft storage device for starting only by operating the manual winding switch. This has the effect of making preparations for starting extremely easy. In particular, even if the weft is not wound on the weft storage device or is wound to some extent, the starting phase is reached after at least one winding is performed, so it is extremely practical.

[Brief explanation of the drawing]

Figure 1 is a block diagram showing the configuration of the present invention, Figure 2 is a block diagram showing the configuration of the present invention.
The figure is a plan view of a loom showing one embodiment of the present invention.
The figure is a sectional view of the air tensor, FIG. 4 is a side view of the drum type weft storage device, FIG. 5 is a plan view of the same as above, FIG. 6 is a view in the direction of the arrow in FIG. 6, FIG. 8 is a sectional view in the direction of FIG. 7, FIG. 9 is a view in the direction of the arrow in FIG. The figure is a plan view of the same as above, Figure 12 is a side view of the removing pipe, Figure 13 is a cross-sectional view of Figure 12, and Figure 14 is a side view of a portion of the weft insertion yarn removing device showing a modified form. , Fig. 15 is an overall diagram of the system including the air and electrical systems, Fig. 16 is a block diagram showing the hardware configuration of the control device, and Figs. 17 and 18 are flowcharts showing the software configuration of the control device. be. 2... warp, 5... reed, 10... weft, 12...
... Air tensor, 15 ... Drum type weft storage device, 17 ... Main nozzle, 19 ... Weft insertion yarn removal device, 21 ... Cutter, 44 ... Rotating shaft, 48
... Drum, 53 ... Thread guide pipe, 55, 56
...Locking pin, 94...Matching clutch, 95...
...Concave portion, 96...Connection body, 99...Convex portion, 100
... Switching body, 114 ... Air actuator, 1
23... Electromagnetic clutch, 132... Bobbin winding motor, 170... Proximity switch, 171, 172...
...Limit switch, 197...Removal pipe,
210... Pressure air supply source, 246... Blower,
250...Main motor, 252...Main shaft, 255...
...Electromagnetic brake, 256 ... Inching motor, 257 ... Electromagnetic clutch, 300 ... Control device, 301 ... CPU, 316 ... Start positioning switch, 317 ... Thread winding switch.

Claims (1)

[Claims] 1. Power transmitted from the main shaft 252 of the loom through a clutch 94 that is connected only in one phase,
Either the drum 48 or the yarn guide 53 is rotated to wind the weft yarn 10 around the drum 48, and the locking bodies 155, 156 are actuated at a predetermined timing to lock the weft yarn 10 wound around the drum 48. In a loom equipped with a drum-type weft storage device 15 that stores weft yarns, clutch state detection devices 171 and 172 detect the state of the clutch 94, and a phase detection device 17 detects the phase of the weft storage device 15.
0, a bobbin winding drive device 123, 132 capable of independently driving the weft storage device 15, a bobbin winding manual operation switch 317, and the clutch state detection device 171, which receives a signal from the switch 317.
172 detects that the clutch 94 is in the disengaged state, the bobbin winding drive device 123,
132 for a predetermined period of time; and during operation of the drive means, the phase of the weft storage device 15 is determined based on the signal from the phase detection device 170 relative to the phase of the main shaft 252 at the time of starting the clutch 94. and a clutch switching means for switching the clutch 94 to a connectable state at a timing substantially delayed from the time when the clutch 94 reaches the connecting phase. 2. The clutch 94 has a single recess 95 on one of opposing surfaces of a pair of members 96 and 100 that are brought into contact and separated by a switching operation, and a single protrusion 99 that can mesh with the recess 95 on the other side. A starting preparation device for a loom according to claim 1, which is a dog clutch having the following.