KR20040107350A - A device for length-measuring and storing wefts in weaving machine having no shuttles, and method for setting position of engaging pins used in the device for length-measuring and storing wefts - Google Patents

Abstract

PURPOSE: A weft measuring storage device of a shuttless loom is characterized by reducing damage of weft and preventing weft insertion from failing. A connecting position of a holding pin and a storage drum is upper side of a rotation direction of a rotary yarn guide than a upper side of a middle axial line of the storage drum. A range of the connecting position thereof is to a position crossed the horizon passing the middle axial line and cylindrical surface of the storage drum. CONSTITUTION: A weft measuring storage device of a shuttless loom comprises: a rotary yarn guide(17) rotating continuously around a storage drum(19) at a standstill; a storage device(10) winding weft around the storage drum(19), holding and unwinding the weft with a holding pin(31) driven back and forth to circumference of the storage drum(19); and a measuring device supplying the weft from a yarn feeder to the rotary yarn guide(17) at the same velocity as velocity winding the rotary yarn guide(17). A weft insertion method is as follows: unwinding the weft wound around the storage drum(19) before starting weft insertion to start the weft insertion; and weft-inserting the weft supplied from the measuring device through the rotary yarn guide(17). A position setting method of the holding pin(31) of the weft measuring storage device is as follows: determining a period of the weft insertion in advance; and setting a position of the holding pin(31) in weft-inserting in time that residual yarn quantity of the weft of the storage drum(19) is below proper length, to be situated above the horizon passing a center of the storage drum.

Description

A DEVICE FOR LENGTH-MEASURING AND STORING WEFTS IN WEAVING MACHINE HAVING NO SHUTTLES, AND METHOD FOR SETTING POSITION OF ENGAGING PINS USED IN THE DEVICE FOR LENGTH-MEASURING AND STORING WEFTS}

The present invention relates to a weft side storage device in a loom without a drum and a method of positioning a locking pin in the weft side storage device, and particularly, to store the weft yarn by a rotary yarn guide that continuously rotates around a stationary storage drum. The storage device which winds the winding and unwinding of this weft by the retaining pin which is driven back and forth around the said storage drum, and the weft from the thread supply body is wound with the rotary yarn guide and the winding speed of this rotary yarn guide is almost the same. It has a measuring device which continuously discharges at the same speed, and the weft wound on the storage drum is released before weft loading starts, and then the wefts which are discharged from the measuring device are directly transferred through the rotary yarn guide. The present invention relates to a weft measuring storage device of a type in which weft loading is carried out by restraint non-separation.

In addition, in this specification, the description regarding the position of the locking pin refers to the axial position of the locking pin. For example, "the coupling position between the locking pin and the storage drum" indicates the position intersecting the axis of the locking pin and the main surface of the storage drum. In addition, "the straight line which ties the center of a retaining pin and a storage drum" means the straight line which ties the center of a piercing pin tip and the center of a storage drum.

As a weft measuring storage device in a loom without a drum of the above type, one disclosed in Japanese Patent Laid-Open No. 63-21955 (claims, etc.) is known. The storage device described in Japanese Patent Laid-Open No. 63-21955 discloses a stationary storage drum which is continuously rotated for a predetermined number of times in a period from the end timing of weft insertion to the end timing of the next weft insertion. And a measuring device for continuously feeding the weft yarn from the yarn supplying body to the rotating yarn guide at a speed substantially equal to the winding speed of the rotating yarn guide with respect to the rotating yarn guide. Then, at the timing of starting the weft loading, the locking pin is retracted from the state in which the locking pin is engaged with the storage drum to release the weft, and the pressure fluid for weft feeding from the weft loading nozzle is ejected. The wefts, which are wound up and stored in the storage state, are released from the storage drum and balloning is performed.

In this type of side storage device, the yarn guide is driven to wind the weft of a single (1 peak) length into the storage drum over a period equivalent to one rotation of the loom. As it is added, it is less than half or less, slower than the rate of weft loosening on the retention drum. Therefore, during the wefting period, the winding by the guide yarn is continued even after weft loading is started, but the wefts on the storage drum are gradually decreased as the weft loading progresses. At the end of weft loading, all the wefts on the storage drum are released, and the wefts from the holding device are withdrawn directly from the rotating yarn guide (without a holding drum) until the weft loading is finished. A state of restraintism is made. In this case, the weft is inserted in a straight line between the rotating yarn guide and the front yarn guide of the storage drum.

In this process, the locking pin passes through the rotary yarn guide to make the final one turn before the weft insertion is finished, and then advances toward the main surface of the storage drum, where the weft can be locked.

At the timing at which weft loading is completed, the rotary yarn guide becomes a rotational position coinciding with the position of the locking pin, the weft thread is locked to the locking pin, and the weft loading is completed.

After this, the winding of the weft to the storage drum for the next weft loading is started.

In addition, the period during which the restraint non-separation is performed is set to be optimal in consideration of the effects of damage to the weft yarn into which the weft yarn is placed. That is, the purpose of employing the structure of the storage device of the above type as described in Japanese Patent Application Laid-Open No. 63-21955 is that when the weft ends, the weft is caught by the retaining pin, and a large tension acts on the weft. This is to prevent damage from occurring.

In other words, if the period of restraint escalation is set, the difference between the speed of weft insertion during free entrainment and the rate of weft insertion during restraint nonconjugation is obtained when weft encasement is performed so that all the wefts on the storage drum are released at a faster timing from the start of weft insertion. Since it becomes large, a large tension acts on the weft at the start of restraint, which may cause damage to the weft due to this. In other words, if we set the period of restraint in a short period, if wefting is performed so that the wefts are freely swept over a longer period during the wefting period, all of the same techniques as in the prior art described in JP-A-63-21955 are free. It is in a state closer to that of weft filling, and the same problem as this conventional technique arises. Therefore, the restraint period is determined and set to be optimal for the weft in consideration of these.

However, in the above-described storage device of Japanese Patent Laid-Open No. 63-21955, a problem arises in which the weft yarn is damaged by contact with a member or the like which exists around the storage device.

That is, as described above, in this type of storage device, the weft on the storage drum gradually decreases with the progress of the weft loading, and the rotary yarn guide rotates on the rotational phase of the rotary yarn guide during the last one rotation before the weft loading is completed. The rotational phase of the loosening point of the weft yarn on the storage drum is reached, and the weft yarn is pulled out in a straight line between the spinning yarn guide and the yarn guide in front of the storage drum.

In addition, as described above, the period during which the restraint is performed is set to be optimal for the weft. Generally, the restraint period is set to start from the time when the rotary yarn guide becomes about 180 ° with respect to the position of the locking pin. do. In addition, in the storage device described in Japanese Patent Laid-Open No. 63-21955, since the retaining pin is disposed vertically above the center of the storage drum, the time when the restraint is started is the last before the end of the weft yarn rotation. It is the time when the position near the vertical position of the center of the storage drum in one rotation is reached.

However, in the storage storage device of this type, the winding length of the weft against the storage drum gradually decreases during weft loading by free non-judging, and the weft of the weft for the storage drum during the last one revolution before the weft of the rotating yarn guide is finished. The length is further reduced without taking a circumference. This results in the phenomenon that the wefts on the storage drum are loosened at the same time before the start of restraint ratio (the loosening point on the storage drum reaches the rotational phase of the rotating yarn guide, and some weft remains on the storage drum). do.

It is thought that this occurs because the winding length of the weft to the storage drum gradually decreases, and the length thereof becomes shorter than the length from which the binding force to the storage drum is obtained by winding up.

And if the wefts of a certain length, which were wound on the storage drum before the restraint commencement, are loosened at once, the length of the weft between the spinning yarn guide and the yarn guide in front of the storage drum becomes that long. It will be withdrawn even more than before. In addition, the baluning gradually decreases as the rotating yarn guide approaches the position of the starting point of the restraint, and after the starting point of the restraint, the weft yarn is in a straight line between the rotating yarn guide and the front yarn guide in front of the storage drum as described above. It is withdrawn.

However, in the loom, the side storage device may be directly supported by the frame of the loom, and in this case, a bracket for supporting a part of the frame or the side storage device of the loom around the storage drum, particularly around the lower part of the storage drum. There may be a member of the back (hereinafter referred to as "peripheral member").

As described above, the weaving of the weft for the storage drum has a problem that large baling of the weft, which occurs before the restraint is started because the length of the weft for the storage drum is less than a predetermined length, comes into contact with the peripheral member existing around the bottom of the storage drum. .

In particular, the starting point of the restraint ratio is the maximum depending on the change in the properties of the weft or the change in the diameter of the thread feeder even when the rotational position of the rotary yarn guide reaches the position near the vertical position of the center of the storage drum as described above. The rotation angle of the rotary yarn guide may be delayed by about 10 degrees. Thus, the starting point of the occurrence of large ballooning of the weft is also shifted from the rotation direction of the rotary yarn guide. For this reason, this large ballooning is generated at a close position by the peripheral member, and the length of contact with the peripheral member of the weft yarn increases with the delay of the start of the restraint ratio. As a result, a large damage occurs to the weft, which causes problems in weaving the fabric, or the weft loading is not performed normally, causing a miss in the weft loading.

In order to solve the above problems of the prior art, the present invention in the weft side storage device of the above-described type, the problem of weaving or weft to reduce the damage of the weft due to the contact of the weft and the peripheral member loosened when we put The purpose is to prevent mistakes in the insertion.

1 is a partial cross-sectional side view showing an embodiment of the weft side storage device of the present invention.

FIG. 2 is a front view of main parts of the embodiment shown in FIG. 1; FIG.

3 is a timing chart showing the operation of the weft measuring instrument of the present invention.

Figure 4 is a partial cross-sectional side view showing the main portion of another embodiment of the weft side storage device of the present invention.

5 is a front view of the main parts in the embodiment shown in FIG. 4;

Fig. 6 is a schematic diagram showing a position adjusting mechanism of the weft stop device in the embodiment shown in Fig. 4;

Fig. 7 is a sectional side view showing the main portion of another embodiment of the weft side storage device of the present invention.

Fig. 8 is a sectional side view showing the main portion of another embodiment of the weft side storage device of the present invention.

※ Explanation of symbols about main part of drawing ※

1: loom frame 3: weft storage device

5: weft nozzle 10: storage device

17: Rotating Yarn Guide 19: Undercurrent Drum

19a: drum piece 19b: insertion hole of the engagement pin

20: measuring device 21: rotary roller

23: driven roller 30: weft stop device

31: Jigepin Y: Weft

C: Center of Retention Drum V: Vertical Line

H: horizon

In order to achieve the above object, the weft measuring device in the loom without a drum of the present invention is wound and unwound by the weft yarns in the storage drum by a rotary yarn guide that rotates continuously around the stationary storage drum. A storage device which is carried out by a retaining pin that is driven back and forth around the storage drum, and a measuring device that continuously discharges the weft from the thread supply to the rotary yarn guide at about the same speed as the winding yarn guide. Then, the weft yarn wound on the storage drum is released before the weft filling starts, and then the weft filling is started, and then the weft filling by the restraint noncement which the weft which is sent out from the measuring device is directly put through the rotary yarn guide is performed. Wherein the engaging plate has a coupling position with the storage drum more than a vertical position at the center of the storage drum. Group rotary yarn guide rotating direction upstream side, and of also being arranged so that the range of I D to a position where the surface of the storage drum and the center horizontal line passing through the storage drum of a cross with the invention.

Preferably, the locking pins may be disposed such that a straight line that ties the center of the retaining pin and the storage drum forms an angle of 10 degrees or more on the upstream side of the rotating yarn guide with respect to a vertical line passing through the center of the storage drum. In addition, the locking pin may be disposed such that the angle is approximately 45 degrees.

The locking pin may be arranged so that its attachment position can be adjusted in the circumferential direction of the storage drum.

In addition, the method of setting the stopper pin position in the weft measuring device of the present invention is that the weft loading storage device of the above type is determined in advance and the period of weft loading due to restraint non-constraints is simultaneously determined. The point is that the position of the locking pin is set so that the rotational position of the rotary yarn guide at the time when the residual amount becomes less than the predetermined length is above the horizontal line passing through the center of the storage drum.

In addition, the term "predetermined length" refers to the storage at the time when the weft on the storage drum is loosened because the winding length of the weft yarn that is constrained to the storage drum decreases and the length thereof becomes short and the binding force is lost. The length of the weft on the drum.

Next, embodiments of the present invention will be described in detail with reference to the drawings.

1 and 2 as an embodiment of the present invention, weft side storage device of the present invention in a loom without a drum, for example, a water spray type loom fixed with a nozzle 5 into the weaving frame 1 of the loom. The specific example which employ | adopted (3) is shown. The weft measuring device 3 includes a storage device 10 supported by the frame 1 of the loom, a measuring device 20 supported by the storage device 10, and a weft monitoring device 30.

In the storage device 10, the fixed cover 11 is supported on the frame 1 of the loom through the bracket 8, and the rotating shaft 13 is rotatable through the bearing 12 in the fixed cover 11. Is supported. A pleat 13b is assembled to the rotary shaft 13 at the rear end side, and the pleat 13b is operatively connected by a drive shaft driven by a main shaft of a loom (not shown) and a timing belt 6. Therefore, the rotating shaft 13 is driven to rotate in synchronism with the main shaft of the loom through the timing belt 6 and the fleece 13b and is continuously rotated at a constant speed for a predetermined number of times predetermined for one rotation of the loom.

In the vicinity of the intermediate portion of the rotary shaft 13, the holder 17b is assembled so as not to rotate on the rotary shaft 13, and the holder 17b is inserted into the hole 17d formed in the holder 17b in the state of the conduit pipe 17c. ) Is attached. The rotary yarn guide 17 is attached to the tip of the conduit tube 17c. In addition, the inner hole of the conduit tube 17c communicates with the conduit hole 13a installed in the rotating shaft 13 through the hole 17d of the holder 17b, and the weft yarn Y supplied from the measuring device 20 described later is The yarn guide 9 is led to the rotary yarn guide 17 through the yarn guide 9, the yarn hole 13a, and the hole 17d.

At the front end of the rotating shaft 13, a fixed disk 15 for supporting the drum holder 16 to which the drum piece 19a forming the storage drum 19 is attached is assembled, and the fixed disk 15 is a bearing. (14) is assembled so as to be rotatable about the rotation shaft (13). However, the fixed disk 15 includes a plurality of permanent magnets 15a, 15a on the outer circumference thereof. These are embedded at predetermined intervals, while the fixed cover 11 has permanent magnets 15a, 15a,... Of the fixed disk 15. The magnet casing 18 having a face opposite to the buried face is fixed so that the permanent magnets 18a, 18a, 18a are arranged so as to face the permanent magnet 15a. Since they are embedded at predetermined intervals, the fixed disk 15 prevents relative rotation with respect to the fixed cover 11 due to the rotation of the rotary shaft 13 by the suction action of the permanent magnets 15a and 18a. It becomes the state to do.

The measuring device 20 has a rotating roller 21 supported by the fixed cover 11 through the shaft 25 and a driven roller 23 supported by the support arm 26 attached to the rear end of the fixed cover 11. It includes.

The shaft 25 supporting the rotating roller 21 is rotatably supported by the fixed cover 11 through the bearing 22. A pleat 25a is assembled to the shaft 25, and the pleat 25a is connected to the pleat 13b by the timing belt 6. Therefore, the rotary roller 21 is driven in synchronization with the main shaft of the loom through the timing belt 6, the fleece 25a and the shaft 25, similarly to the rotary shaft 13.

In addition, the driven roller 23 is in a state of being press-contacted to the rotary roller 21 so that the weft yarn Y drawn from the thread supply body (not shown) is inserted between the driven roller 23 and the rotary roller 21. do. Therefore, the rotary roller 21 is driven to rotate, and the weft yarn Y is continuously discharged toward the yarn guide 9 at a predetermined speed in cooperation with the driven roller 23.

In addition, the rate at which the weft yarn Y is discharged by the measuring device 20 is set to be almost the same as the speed at which the weft yarn is wound to the storage drum 19 by the rotary yarn guide 17. That is, the measuring device 20 sends the weft yarn as long as the storage drum is wound once while the rotary yarn guide 17 is rotated, and the weft yarn having a length of one weft in the period corresponding to one rotation of the loom is drawn at a constant speed. It is set to send.

The weft stopper 30 is supported by the support portion 18b integrally formed on the magnet casing 18 fixed to the fixed cover 11 and is disposed to face the predetermined drum piece 19a.

The weft monitoring device 30 has a driving means (not shown) such as an electronic solenoid therein and a locking pin 31 which is driven back and forth by the driving means. Then, the retaining pin 31 is driven back and forth toward the insertion hole 19b formed in the opposing drum piece 19a, so that weft locking and loosening of the weft on the storage drum 19 can be performed.

In front of the weft side storage device 3, a clamper 8 placed on the frame 1 and yarn guides 4a and 4b provided before and after the clamper 7 are disposed, and the weft storage device 3 is disposed. The weft (Y) withdrawn from the storage drum (19) is led to the nozzle (5) for the weft through the yarn guide (4a), the clamper (7) and the yarn guide (4b).

The action of the weft measuring storage device 3 in the loom without a drum having the above configuration is generally as described above. That is, based on FIG. 3, the rotational position of the rotary yarn guide 17 is set to substantially coincide with the position of the stopper pin 31 at a timing for ending the weft insertion (270 ° in the loom crank angle in the illustrated example). Therefore, the weft yarn Y, which is drawn out from the rotary yarn guide 17, is engaged by the catching pin 31 at the end of the weft loading, and the winding of the weft yarn 19 is started again. In addition, the rotary yarn guide 17 is set for a predetermined number of times (five turns in the illustrated example) for a period corresponding to one turn of the loom from the end of the weft loading (up to the end of the next weft loading). It rotates continuously and winds the weft Y to the storage drum 19.

After that, when the timing of weft loading starts again (in the example shown, 90 degrees of the loom crank angle), the retaining pin 31 is retracted to release the weft yarn Y on the storage drum 19. The weft loading is started by the injection of the pressure fluid of (5) and the gripping release of the crank 7. The weft loading of the weft yarn Y, which has been wound on the storage drum 19, is released until then, and the weft loading is performed in the free non-visible state. During the wefting period, the weft yarn Y on the storage drum 19 gradually decreases because the unwinding speed by weft loading is larger than the winding speed by the rotary yarn guide 17.

Then, the insertion hole 19b of the drum piece 19a facing the stopper pin 31 after passing through the position of the stopper pin 31 to perform the last one turn (the fifth turn winding operation) before the end of weft insertion. Going toward, we are able to engage the weft (Y). After that, the weft yarn Y on the storage drum 19 is completely loosened and weft loading by the restraint non-seaming starts from the point when the weft yarn Y is in a straight line between the rotary yarn guide 17 and the yarn guide 14a. In addition, the starting time of the restraint ratio is set to the time when the rotary yarn guide 17 is rotated about a half circumference (180 degrees) from the position of the locking pin 31. After this, the weft loading by the restraint non-separation is performed until the end of the weft loading, and the above operation is repeated again from the time when the weft loading is completed.

In the example shown in the weft side storage device of this type, the conventional type in which the retaining pin 31 of the storage device 10 is disposed at a position perpendicular to the center C of the storage drum 19 (dotted line in Fig. 2). The straight line L, that is, the locking pin 31, which binds the locking pin 31 and the center C of the storage drum 19 upstream of the rotational direction of the rotary yarn guide 17 (in the direction of arrow K in FIG. 45 ° with respect to the vertical line (V) passing through the center (C) of the storage drum 19 is a straight line (L) connecting the storage position of the storage drum (19) and the center (C) of the storage drum (19). (Also in FIG. 1, the locking pin 31 (weft stop device 30) is shown to be disposed at the vertical position of the center C of the storage drum 19, but this is not the case of the weft stop device 30). For the sake of simplicity, the configuration is illustrated as such for convenience, and as in FIG. 2, the angle is 45 degrees with respect to the vertical line V passing through the center C. Is deployed).

Therefore, in the storage device 10, the rotational position of the rotary yarn guide 17 at the end of weft insertion becomes 45 degrees ahead of the vertical position of the center C, and thus the starting point of the restraint ratio. The rotational position of the rotary yarn guide 17 in the last one revolution before the end of the weft insertion is at a time point 45 degrees ahead of the position near the vertically lower position of the center C. FIG.

As a result, when the remaining amount of the weft yarn Y on the storage drum 19 becomes less than a predetermined length and is released at once, that is, the rotational position of the rotary yarn guide 17 at the time of starting large baluning of the weft yarn as described above It becomes a position higher than the horizontal line H passing through the center C located above the peripheral member, such as the frame 1 which exists in the lower periphery of the storage drum 19. As shown in FIG. Since the weaving of the weft (Y) is generated from the position of the rotary yarn guide 17 as a starting point, the above-mentioned largely ballooned weft yarn is formed in the state where the rotary yarn guide 17 is at such a high position. Y) does not touch the peripheral member.

In addition, since the baling of the weft yarn Y decreases gradually as the rotary yarn guide 17 approaches the rotational position at the start of the restraint, the rotary yarn guide 17 is in the vicinity of the position where the peripheral member is present. In the early stage, the ballooning of the weft Y becomes smaller. Therefore, the length of the contact with the weft (Y) peripheral member is sufficiently small, thereby avoiding damage to the weft (Y) as possible.

In addition, in the illustrated storage device 10, the stopper pin 31 can be positioned in the circumferential direction of the storage drum 19. In detail, the magnet casing 18 for supporting the weft stop device 30 through the support 18b is fixed to the fixing cover 11 by the screw member 11a through a long hole 18c formed along its outer circumference. . Therefore, the magnet casing 18 is rotatable with respect to the fixed cover 11 along the long hole 18c by loosening the screw member 11a, and the weft measuring device 30 is driven by the rotation of the magnet casing 18. It is possible to change the position along the circumferential direction of the storage drum 19 in the range of 18c.

In addition, the fixed disk 15 for supporting the drum piece 19a of the storage drum 19 through the drum holder 16 has a magnet casing 18 by the suction action of the permanent magnets 15a and 18a as described above. Relative rotation against is blocked. Therefore, when the magnet casing 18 is rotated with respect to the fixed cover 11 as described above, the fixed disk 15 also rotates accordingly. Thus, even when the position of the weft stop device 30 is changed, the weft stop device 30 is changed. And the positional relationship between the drum piece 19a opposite to it does not change, and the insertion hole 19b of the drum piece 19a opposite to the stopper pin 31 remains in the opposite state.

In addition, the position adjustment range of the engagement pin 31 can be set freely by the formation length of the long hole 18c. Therefore, the retaining pin in the desired range within the rotational direction upstream of the rotary yarn guide 17 and the horizontal line H passing through the center C than the vertical position of the center C of the storage drum 19 What is necessary is just to form the long hole 18c suitably so that the engagement position to the storage drum 19 of 31 may be adjusted.

(Other Examples)

In the above-described embodiment, the straight line L, which binds the locking pin 31 (the coupling position of the locking pin 31 and the storage drum 19) and the center C of the storage drum 19, passes through the center C. Although the engagement pin 31 is disposed to form an angle of 45 degrees with respect to the vertical line V, the arrangement of the engagement pin 31 in the present invention is not limited thereto, and the vertical line through which the engagement pin 31 passes through the center C. The straight line L connecting the stopper pin 31 and the center C is perpendicular to the horizontal line H that is upstream of the rotational direction of the rotary yarn guide 1 and passes through the center C, rather than (V). Range up to 90 degrees relative to V).

According to the configuration of the present invention as described above, compared to the conventional weft measuring device of the type described above, which exists around the lower part of the weft yarn and the storage drum, which occurs before the restraint is started during the last one revolution before the end of the weft insertion of the rotary yarn guide. Excessive contact with the peripheral member can be reduced.

In particular, the position of the locking pin 31 is set so that the straight line L connecting the locking pin 31 and the center C forms an angle of 10 degrees or larger with respect to the vertical line V, so that the change of the physical properties of the weft yarn or the thread supply Due to the delay of the start of the restraint ratio due to the change of the sieve, it is possible to prevent the weft yarn Y and the peripheral member from excessively contacting and damage the weft yarn due to it.

Also, as in the above embodiment, the position of the engagement pin 31 is set so that the angle formed by the straight line L and the vertical line V, which binds the engagement pin 31 and the center C, is sufficiently larger than the above 10 degrees. The contact itself between (Y) and the peripheral member can be made little or little, so that the damage caused by contact with the peripheral member can be avoided even if the weft is susceptible to damage.

In addition, the positioning of the locking pin 31 within the above range may be appropriately set in consideration of the type of the weft yarn Y to be inserted, the rotation speed of the rotary yarn guide 17, and the like. In addition, the weft yarn (Y) on the storage drum (19) described above is the time when the remaining amount of the weft yarn (Y) on the storage drum (19) during the last one revolution before the weft insertion of the rotary yarn guide (17) becomes less than or equal to a predetermined length. In consideration of the rotational position of the rotary yarn guide 17 and the height position of the peripheral member at the time when is released at the same time, the rotational position of the rotary yarn guide 17 at that time is at least the center C of the storage drum 19. The position of the stopper pin 31 may be set so as to be a position higher than the horizontal line H passing through).

In addition, in the present invention, the position of the engagement pin 31 on the upstream side of the rotary yarn guide 17 is the maximum angle of the straight line L that connects the engagement pin 31 and the center C with the vertical line V. By setting it within the range which becomes 90 degree, attachment, positioning, adjustment, etc. of the weft stopper 30 are performed without a trouble.

In the above embodiment, the magnet casing 18 supporting the weft stop device 30 as a configuration for changing the position of the weft stop device 30 (the stop pin 31) along the circumferential direction of the storage drum 19. ) Is rotatable with respect to the fixed cover 11, but instead of this, the configuration shown in FIGS. 4 to 6 may be used.

In the configuration shown in FIGS. 4 to 6, the weft measuring device 30 is supported by the fixing cover 11 instead of the magnet casing 18, and the bracket is provided with respect to the guide 11b attached to the main surface of the fixing cover 11. It is attached via 33.

In addition, the guide 11b extends over the range of about 1/4 week from the upper position on the main surface of the fixing cover 11 to the upstream side of the rotating yarn guide 17, and is fixed to the fixing cover 11 at both ends thereof. It is attached to the upper end of the support parts 11c and 11c provided integrally by the screw members 11d and 11d. Therefore, a gap exists between the support portions 11c and 11c by the height of the support portion 11c between the guide 11b and the fixed cover 11. Further, the guide 11b is formed with long holes 11e and 11e through which the screw members 33a and 33a screwed into the bracket 33 are inserted between the support portions 11c and 11c as shown in FIG.

The fixing member 33b is disposed at a position opposite to the bracket 33 of the guide 11b, that is, at a position corresponding to the bracket 33 of the gap between the fixing cover 11 and the guide 11b. Screw member 33a is embedded in 33b).

Therefore, in the storage device in the present embodiment, by tightening the screw members 33a and 33a, the guide 11b is tightened by the bracket 33 and the fixing member 33b, and accordingly the bracket for the guide 11b ( 33) is fixed. Conversely, by loosening the screw members 33a and 33a, the tightening state of the guide 11b by the bracket 33 and the fixing member 33b is released, and the bracket 33 is guided along the long hole 11e. It becomes movable in the longitudinal direction of. Then, the position in the circumferential direction of the storage drum 19 of the weft stopper 30 (the stop pin 31) is adjusted.

In addition, in this configuration, since the stop pin 31 is positioned independently of the storage drum 19, the position in the circumferential direction of the drum piece 19a of the storage drum 19 is changed in accordance with the change of the position of the stop pin 31. Then, it is necessary to adjust so that the insertion hole 19b of the drum piece may be in a position opposite to the stopper pin 31.

As for the position adjustment of the drum piece 19a, the fixed disk 15 supporting the drum piece 19a is rotatable with respect to the rotating shaft 13, and is adapted to the suction action of the permanent magnets 15a and 18a. Since the rotational phase with respect to the fixed cover 11 is maintained, it is possible to rotate the fixed disk 15 by applying a force larger than the suction force of the permanent magnet. Therefore, the operator rotates the fixed disk 15 in such a direction in accordance with the positional adjustment of the retaining pin 31 in the circumferential direction, thereby resetting the drum piece 19a having the insertion hole 19b formed therein. Can be opposed to

However, since the rotational position of the fixed disk 15 is adjusted by one pitch unit of the permanent magnet, the position of the locking pin 31 and the position of the insertion hole 19b of the drum piece 19 do not necessarily match. Occurs. In this case, the magnet casing 18 is slightly rotated by using the same configuration as that of the embodiment of FIGS. 1 and 2, that is, the configuration of the long hole 18c and the screw member 11a formed in the magnet casing 18, and the locking pin 31. ) And the insertion hole 19 may be finely adjusted.

As the configuration for changing the position of the weft stop device 30 (the stop pin 31) along the circumferential direction of the storage drum 19, the configurations described in Figs. 7 and 8 can be considered in addition to the above configurations. 7 and 8 are all cases in which the weft stop device 30 is supported by the magnet casing 18, similarly to the embodiment of FIGS. 1 and 2, but the descriptions of the weft stop device and its support are shown. The configuration is omitted.

In the configuration of FIGS. 7 and 8, the magnet casing 18 is fitted inside the distal end portion 11f of the fixed cover 11 at its outer circumferential surface 18d so as to slide along the inner circumferential surface of the distal end portion 11f to rotate. have.

In the configuration of FIG. 7, the pressing fixing member 34 is provided as the rotation stopping means of the magnet casing 18d with respect to the fixing cover 11, and the front end faces of both the fixing cover 11 and the magnet casing 18 are provided. have. The pressing fixing member 34 is fixed to the front end surface 11g of the fixing cover 11 by the screw member 34a and also touches the front end surface 18e of the magnet casing 18 to tighten the screw member 34a. Is pressed against this tip end surface 18e. Therefore, in the configuration of FIG. 7, the fixing cover 11 and the magnet casing 18 are prevented from relative rotation by tightening the screw member 34a, and the fixing cover 11 and the fixing cover 11 are loosened by loosening the screw member 34a. The magnet casing 18 becomes rotatable so that the rotational phase of the magnet casing 18 relative to the fixed cover 11 can be adjusted.

In addition, in the structure of FIG. 8, the push screw 35 screwed into the front-end | tip part 11f of the fixed cover 11 is provided as rotation stop means of the magnet casing 18d with respect to the fixed cover 11, and this push screw ( 35 is dipped so that its front end touches the outer peripheral surface 18d of the magnet casing 18. Therefore, in the configuration of FIG. 8, the front end of the pressing screw 35 is pressed by the outer circumferential surface 18d of the magnet casing 18 by driving the pressing screw 35 so that the fixing cover 11 and the magnet casing 18 are pressed. The rotation of the magnet casing 18 with respect to the fixed cover 11 is brought into a state of preventing relative rotation, and the fixing cover 11 and the magnet casing 18 can be rotated relative to each other by returning the push screw 35. The phase can be adjusted.

The present invention is not limited to any one of the above embodiments, and various modifications can be made without departing from the spirit of the present invention.

According to the weft measuring device of the present invention described above, the position of the rotating yarn guide at the end of the weft insertion, that is, the position of locking the weft by the engagement pin and the storage drum is combined, the rotation yarn compared to the conventional storage device of the conventional type It becomes the upstream of the rotation direction of a guide. Therefore, the rotational position of the rotational yarn guide at the start of the restrictional clearance to secure a predetermined period of restraint is also upstream of the rotational direction, and thus the rotational yarn guide at the time when the residual amount on the storage drum becomes less than or equal to a predetermined length. The rotational position of is also the upstream side of the rotational yarn guide in comparison with the conventional apparatus. As a result, even if a delay in starting the restraint ratio occurs due to the change in the properties of the weft or the change in the diameter of the thread supply, the contact length between the weft and the peripheral member can be suppressed to a certain extent.

In particular, when the position where the engagement pin and the storage drum are coupled is set such that a straight line connecting the center of the retention pin and the storage drum forms an angle of 10 degrees or more on the upstream side of the rotational direction of the rotating yarn guide with respect to the vertical line passing through the center of the storage drum. In almost all cases when a delay in the start of restraints occurs, damage to the weft due to excessive contact between the weft and the peripheral member can be prevented.

In addition, the angle formed by the straight line connecting the center of the retaining pin and the storage drum with respect to the vertical line passing through the center of the storage drum at an upstream side of the rotational direction of the rotating yarn guide is sufficiently larger than 10 degrees, for example, about 45 degrees. By setting the position of the zip pin, not only the amount of contact between the weft and the peripheral member can be prevented from being excessive due to the delay in the start of the restraint, and the contact itself between the weft and the peripheral member can be reduced. Even if the weft yarn used is easily damaged, damage due to contact with the peripheral member can be prevented.

In addition, the position of the locking pin is set such that the engagement position between the locking pin and the storage drum is such that the horizontal line passing through the center of the storage drum and the main surface of the storage drum intersect or more downstream of the rotational direction of the rotating yarn guide. Attaching and adjusting the locking pin can be easily performed without disturbing the member. Particularly, if it is set near the 45 degree angle position as described above, the operation will be more easily performed.

The position of the locking pin can be arbitrarily set within the above range by allowing the locking pin to be adjusted in the circumferential direction of the storage drum. The optimal one can be set.

According to the setting method of the locking pin position in the weft side storage device of the present invention, the weft side storage device of the above type has a point in time where the amount of remaining room on the storage drum of the weft thread loosened on the storage drum as the weft is inserted becomes less than a predetermined length. The rotational position of the rotating yarn guide is higher than the height of the peripheral member before the rotating yarn guide reaches the lower part of the storage drum where the peripheral member exists. At this point, the ballooning is eliminated to some extent, so that damage to the weft due to the contact between the weft and the peripheral member can be avoided as much as possible.

Claims (5)

A storage device in which the weft yarn is wound around the storage drum by a rotary yarn guide that continuously rotates around the storage drum in a stationary state, and the holding and unwinding of the weft yarn is performed by a stopper pin driven back and forth around the storage drum; A measuring device for continuously feeding the weft from the sieve to said rotary yarn guide at a speed substantially equal to the winding speed of said rotary yarn guide, A form in which the weft yarn is wound by the restraint drum in which the weft yarn wound on the storage drum is released before the weft filling starts, and then the weft yarn which is sent out from the measuring device is directly put by the weft yarn through the rotary yarn guide. Is, The retaining plate has an engagement position with the storage drum at an upstream side in the rotation direction of the rotary yarn guide than a vertical position of the storage drum center, and a horizontal line passing through the center of the storage drum and a main surface of the storage drum intersect with each other. Weft side storage device in a loom without a drum, characterized in that arranged to be within the range to the position. The method of claim 1, The locking pin is disposed so that the locking pin and the straight line that binds the center of the storage drum is arranged to the angle of 10 degrees or more on the upstream side of the rotation direction with respect to the vertical line passing through the center of the storage drum. Weft side storage device in a loom without a drum characterized in that. The method of claim 1, The locking pins are arranged such that a straight line connecting the center of the locking pin and the storage drum forms an angle of approximately 45 degrees with respect to the vertical line passing through the center of the storage drum at an upstream side in the rotation direction of the rotary yarn guide. Weft storage equipment in looms without teeth. The method of claim 1, And the retaining pin is arranged to adjust its attachment position in the circumferential direction of the storage drum. A storage device which winds the weft yarn around the storage drum by means of a rotating yarn guide that continuously rotates around the storage drum in a stationary state, and stops and unwinds the weft yarn by a stopper pin driven back and forth around the storage drum. And a measuring device for continuously weaving the weft yarn from the rotary yarn guide at about the same speed as the winding yarn guide. The weft yarn by the restraint non-weft which the weft yarn wound on the storage drum before the weft filling start is released and the weft filling is started, and then the weft which is sent out from the measuring device is directly put through the rotating yarn guide. In the weft measuring device in the loom without The rotational position of the rotary yarn guide at the time when the period of weft loading by the restraint non-seam is determined in advance and the amount of remaining yarns on the storage drum during the weft loading period becomes less than or equal to a predetermined length is greater than the horizontal line passing through the center of the storage drum. Positioning pin position setting method of the weft side storage device in a loom without a book, characterized in that for setting the position of the locking pin to be upward.