JP4977699B2 - Splicer equipment - Google Patents

Description

  The present invention relates to a splicer device that twists together ends of different yarns.

  Conventionally, when forming a knitted fabric or a woven fabric, it is necessary to splice ends of different yarns. For the yarn splicing, a knotter that forms a knot, a splicer that twists the fibers at the end of the yarn and twists them so that they are intertwined to form a seam, and the like are used. The yarn joining by the knotter is performed by forming a knot between the ends of different yarns, and thus a knot is generated at the yarn joining portion. The knot portion has a large diameter and is caught in the middle of an apparatus for forming a knitted fabric or a woven fabric, so that a smooth operation becomes difficult. In splicing with a splicer, it is possible to suppress an increase in diameter at the splicing portion, so that the knitting and weaving operations can be continued smoothly.

  Splicers are used for piecing in a winder or the like that forms a cone that winds a yarn and attaches it to a loom. The splicer is made by aligning the direction of the ends of the yarns to be spliced, and the spliced portion where the ends are intertwined from the yarns connected in a straight line extends laterally to form a so-called T-shaped spliced portion. (For example, refer to Japanese Patent Application Laid-Open No. 2004-27463), the ends of the yarns are made to face each other, and the yarn splicing portion is entangled so as to cover the periphery of the yarn to be connected linearly, In other words, there is a type in which a spliced part is formed in an I-shape (for example, see Japanese Patent Application Laid-Open No. 2004-131276).

  Since the knitted fabric is basically formed of one knitting yarn, when different yarns are added, properties and colors that cannot be obtained with the same yarn can be given. In the knitting machine, it is possible to use a plurality of yarns alternately. However, if the portions where the same yarn is used are separated from each other in the formed knitted fabric, a transition yarn is generated. If the yarn is switched by piecing, no crossover yarn is generated. Further, even if a plurality of yarns can be used in the knitting machine, the number of yarns that can be used is limited because the portion for supplying the yarn is limited to a narrow area. When a knitting machine requires splicing, a knotter that forms a knot is used. When the knotter is used, it is necessary to treat the knot so that the diameter of the yarn becomes large, the smooth operation of the apparatus is hindered, and even in the knitted fabric that is formed, the knot does not come out on the surface. If splicing is performed with a splicer, it is expected that the processing of the spliced portion will be simplified. However, a splicer provided in a conventional winder or the like is large and cannot be provided in a yarn supply path of a knitting machine or the like.

  Japanese Unexamined Patent Application Publication No. 2004-27463 and Japanese Unexamined Patent Application Publication No. 2004-131276 do not describe the arrangement of each part or the specific structure for downsizing the device. In the splicer used in the knitting machine, for example, when the color is switched, in the I-shaped yarn splicing portion described above, the splicing portion becomes an intermediate color portion. In the above-described T-shaped yarn splicing portion, the yarn splicing portion comes out of the front and rear yarns, so that the color of the front and rear yarns can be switched without the intermediate color portion. In the knitting machine, it is possible to perform control such that the yarn joining is performed at the boundary portion of the pattern to change the color, and the yarn joining portion is hidden behind the knitted fabric. Therefore, for the knitting machine or the like, a splicer that forms the aforementioned T-shaped yarn splicing portion is preferable. Japanese Unexamined Patent Application Publication No. 2004-27463 describes in detail the mechanism of the head part for piecing. In order to incorporate into a knitting machine or the like, it is necessary to automatically insert a yarn to be spliced into the head. Japanese Patent Laid-Open No. 2004-27463 does not describe a thread insertion mechanism that can automatically insert a thread into the head.

  Japanese Patent Application Laid-Open No. 2004-27463 and Japanese Patent Application Laid-Open No. 2004-131276 do not describe any configuration for preventing malfunction due to fiber dust or the like.

  The objective of this invention is providing the splicer apparatus which can be reduced in size and can prevent the malfunctioning by fiber dust.

The present invention is a splicer device capable of splicing to at least one other thread while using at least one of a plurality of threads,
A holding portion that holds a tip portion of the yarn that is not in use among the plurality of yarns;
A selection unit for selecting a yarn to be spliced from the yarns held by the holding unit;
A head that joins the yarn selected by the selection unit and the yarn in use in a groove formed from an inlet on the opposite side of the holding unit to an outlet on the holding unit by joining a compressed fluid,
A thread guide lever that guides the thread selected by the selector to the entrance of the groove of the head;
A first drive unit for driving the yarn guide lever;
Suction for sucking yarn near the exit of the groove in the head,
A cutter that cuts the used yarn to be spliced and the selected yarn near the exit of the groove in the head;
A second drive unit that drives the cutter to interlock with the yarn guide lever;
A holding unit, a selection unit, a head, a thread guide lever, a first drive unit, a suction, a cutter, and a second drive unit that support the mutual positional relationship and have a base functioning as a partition;
Including
A splicer device characterized in that at least a holding part, a head part, a thread guide lever, a cutter and a suction are arranged on one side of the base, and at least a first and a second driving part are arranged on the other side of the base. is there.

In the present invention, a solenoid valve for supply control that is disposed on the other side of the base and controls supply and stop of supply of the compressed fluid to the head;
It is preferable to further include a suction control electromagnetic valve that is disposed on the other side of the base and controls the suction of the yarn by suction and the suction stop.

In the present invention, the holding unit is driven by the compressed fluid,
Preferably, a holding unit control electromagnetic valve is provided on the other side of the base, and supply and stop of supply of the compressed fluid to the holding unit are controlled by the holding unit control electromagnetic valve.

  Further, in the present invention, the selected yarn and the yarn in use are driven by the second drive unit, and the inlet portion side of the groove is closed while the selected yarn and the yarn in use are in use. It is preferable to further include a thread clamp for clamping the thread.

  Also, in the present invention, a yarn guide for guiding a yarn in use, the yarn guide being arranged at a position closer to the selection portion than the groove of the head and protruding from the groove of the head in the depth direction of the groove. It is preferable to further include a yarn guide on which a guide surface for guiding is formed.

In the present invention, the base has a partition wall extending in a direction connecting the yarn supply side of the plurality of yarns and the yarn use side,
The selection unit is disposed on the yarn supply side of the partition from the partition wall, and is supported by the end of the base on the yarn supply side,
The first driving unit and the second driving unit are respectively supported by the base on the yarn use side and the other side of the partition wall from the selection unit,
On one side of the bulkhead, the holding part, suction, cutter and head are supported on the base in the order of the holding part, suction, cutter and head from the yarn supply side to the yarn usage side. It is preferred that

In the present invention, the first drive unit is a motor having an output shaft,
The yarn guide lever is preferably provided to be angularly displaceable within a predetermined angle range around an angular displacement axis parallel to the output shaft of the motor.

In the present invention, the second drive unit is a motor,
The cutter and the thread clamp are preferably driven by a motor via a cam mechanism.

  According to the present invention, the splicer device can select and splice an arbitrary yarn from yarns not in use as yarns in use. The head joins the selected yarn and the yarn in use in the groove formed from the inlet to the outlet by the flow of the compressed fluid, so that the yarn ends are twisted once in the groove. The yarn is then entangled with each other to form a spliced portion, and the yarn in use and the selected yarn are continuously connected at the inlet of the head. The first drive unit that drives the yarn guide lever and the second drive unit that drives the cutter can be individually provided and controlled independently, and control flexibility can be obtained. The base supports the holding unit, the selection unit, the head, the thread guide lever, the first driving unit, the suction, the cutter, and the second driving unit so as to maintain the mutual positional relationship, so that the required space for each unit is reduced. Therefore, the apparatus can be miniaturized. Moreover, since the base has a partition wall, fiber dust generated by the yarn splicing on one side of the partition wall on which the holding unit, the head unit, the thread guide lever, the cutter, and the suction are provided is caused by the first and second drive units. It is possible to suppress scattering to the other side of the partition wall to be arranged. Therefore, it is possible to prevent malfunction due to the fiber dust biting into the first and second drive units.

  According to the present invention, the supply control solenoid valve for controlling the supply and stop of supply of the compressed fluid to the head and the suction control solenoid valve for controlling the suction and suction stop of the yarn by the suction are incorporated. Since the supply control solenoid valve and the suction control solenoid valve are disposed on the other side of the partition wall, it is possible to prevent malfunction caused by fiber dust being caught in the supply control solenoid valve and the suction control solenoid valve. it can. Therefore, a suitable splicer device in which the electromagnetic valve for supply control and the electromagnetic valve for suction control are incorporated is realized.

  According to the present invention, supply and stop of supply of the compressed fluid to the holding unit are controlled by the holding unit control electromagnetic valve. Since the holding portion control solenoid valve for controlling the holding portion is disposed on the other side of the partition wall, it is possible to prevent malfunction due to the fiber dust biting into the holding portion control solenoid valve. Therefore, a suitable splicer device is realized in which the holding unit is driven by the compressed fluid and a holding unit control electromagnetic valve for controlling the holding unit is incorporated.

  According to the present invention, since the yarn clamp is driven by the second drive unit and the selected yarn and the yarn in use are fitted in the groove of the head, the inlet of the groove of the head is blocked. It is possible to efficiently perform the piecing by suppressing the compressed fluid piecing in the groove from leaking from the inlet. Furthermore, since the selected thread and the thread in use can be clamped by the thread clamp, the selected thread and the thread in use are securely held in the state where they are fitted in the groove of the head, It is possible to prevent defective splicing.

  According to the present invention, the guide surface of the yarn guide is disposed at a position where it escapes from the groove of the head in the groove depth direction. Therefore, when a tension is applied to the yarn in use, it is possible to prevent the yarn from being tensioned and being in a state where the yarn is fitted into the groove of the head. Thereby, a smooth knitting operation can be realized. Further, the yarn guide can be fixed with respect to the base, and the structure can be simplified. Further, since it is not necessary to drive the yarn guide, the structure of the splicer device can be simplified. In addition, it is not necessary to form a through hole in the base to transmit power from the drive source for driving the yarn guide, preventing fiber dust from entering the back of the base and preventing malfunction of the drive unit. Can do.

  According to the present invention, the base has the partition wall extending in the direction connecting the yarn supply side of the plurality of yarns and the yarn use side. A selection unit is arranged at the end of the base on the yarn supply side, and a holding unit, suction, cutter and head, and first and second drive units are arranged from the selection unit to the yarn use side. Then, the yarn selected by the selection unit is spliced from the selection unit to the yarn in use on the yarn usage side. Furthermore, from the holding part, the suction, cutter, and head are arranged in this order from the yarn supply side to the yarn use side, and the head has the groove outlet at the yarn supply side and the groove inlet at the yarn use side. It is arranged to be on the side. Therefore, as soon as the splicing from the currently used thread to the selected thread is completed, the currently used thread can be switched to the selected thread, and unnecessary portions cut off by the cutter of the selected thread can be removed by suction. Can be aspirated.

  According to the present invention, since the output shaft of the motor, which is the first drive unit, and the angular displacement axis of the yarn guide lever are parallel, the yarn guide lever is directly driven by the output shaft of the motor or the transmission of gears, etc. When driving through a mechanism, the required space can be reduced. The yarn guide lever can be angularly displaced within a predetermined angle range, and the space necessary for angularly moving the yarn guide lever can also be limited within the predetermined angle range. Necessary space can be reduced.

  According to the present invention, the cutter and the thread clamp are driven by the motor that is the second drive unit via the cam mechanism. Therefore, the cutter and the thread clamp can be driven with their operations synchronized.

Objects, features, and advantages of the present invention will become more apparent from the following detailed description and drawings.
It is a front view which shows the splicer apparatus 1 which is one Embodiment of this invention. It is a left view which shows the splicer apparatus. It is a perspective view which shows the splicer apparatus 1 seeing from the front side. It is a perspective view which shows the splicer apparatus 1 seeing from the front side. It is a perspective view which shows the splicer apparatus 1 seeing from the back side. It is a top view which shows the cutter 30 and the thread clamp 31. FIG. It is a perspective view which shows the cutter 30 and the thread clamp 31. FIG. It is a perspective view which shows the splicer apparatus 1 seeing from the downward direction. 3 is a block diagram showing an electrical configuration necessary for controlling splicing in the splicer device 1. FIG. It is a front view which simplifies and shows the splicer apparatus 1 in the state which has selected the yarn 12a for performing yarn splicing. It is a left view which simplifies and shows the splicer apparatus 1 of the state of FIG. FIG. 3 is a front view schematically showing a splicer device in a state where a selected yarn 12a is hooked by a tip 14a of a yarn guide lever 14; 3 is a front view schematically showing the splicer device 1 in a state in which the yarn 12a selected by the tip 14a of the yarn guide lever 14 is guided to the inlet of the splice nozzle 7. FIG. FIG. 3 is a side view showing a simplified configuration of the vicinity of the splice nozzle 7 in a state in which the yarns 12a and 12b to be spliced are fitted in the grooves 7a of the splice nozzle 7. It is a side view which simplifies and shows the structure of the splice nozzle 7 vicinity of the state which is making the thread | yarn clamp 31 and the cutter 30 act. It is a flowchart which shows the procedure of the yarn splicing operation | movement including the state shown in FIGS. It is a figure for demonstrating the yarn position 200 at the time of knitting, and the yarn position 201 at the time of yarn splicing. 3 is an enlarged plan view showing the vicinity of a yarn guide 20. FIG. A configuration is shown in which the splicer device 1 is mounted on a flat knitting machine 60 and the knitting yarn 61 is used as a yarn 12 for piecing.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a front view showing a splicer device 1 according to an embodiment of the present invention. FIG. 2 is a left side view showing the splicer device 1. 3 and 4 are perspective views showing the splicer device 1 as seen from the front side. FIG. 5 is a perspective view showing the splicer device 1 as seen from the back side. 1 to 3 and 5 show a state near the start of the yarn splicing operation, and FIG. 4 shows a state near the end of the yarn splicing operation. The splicer device 1 is also provided with a cover and a cleaning mechanism for suppressing scattering of fiber dust generated when piecing, but the description is omitted in FIGS.

  The splicer device 1 overlaps the ends of different yarns in the same direction, causes the compressed fluid to act on the overlapped portions, untwists each yarn, then entangles each yarn again and twists them together. It is a device to do. In the splicer device 1, a thread selection unit 3, a first motor 4 as a first drive unit, a second motor 5 as a second drive unit, an air mechanism unit 6, and a splice nozzle 7 are supported on a partition wall 100 of the base 2. Configured. The base 2 has a plate-like partition wall 100 that extends vertically and horizontally and is arranged vertically. The partition wall 100 supports the above-described supported bodies 3 to 7 so as to support each other in a spatially appropriate positional relationship. The thread selection unit 3 is disposed above the partition wall 100. The air mechanism 6 and the splice nozzle 7 are arranged on the near side which is one side with respect to the partition wall 100, and the first and second motors 4 and 5 are arranged on the back side which is the other side with respect to the partition wall 100. ing.

  The thread selection unit 3 is disposed on the uppermost part of the base 2 and has a plurality of thread selection plates 10. Each thread selection plate 10 is a solenoid provided individually and can be oscillated and displaced. The figure shows a state in which the rightmost thread selection plate 10 shown in FIG. 1 is selected and the ring 11 at the tip is pulled into the back side of FIG. Similarly, with the other thread selection plates 10, the ring 11 can be pulled back. A thread 12 is inserted through each ring 11. The vicinity of the tip of the thread 12 is held by the thread holder 13. The yarn holder 13 as a holding unit is included in the air mechanism unit 6 and is opened and closed by air pressure, for example, and can hold the tips of the plurality of yarns 12 in the closed state simultaneously. For ease of understanding, the subscript “a” is attached to the selected thread selection plate, its ring, and the code of the thread inserted through the ring. As shown in the figure, for example, when one thread selection plate 10a is selected, the thread 12a inserted through the ring 11a is pulled to the back side in FIG. The other yarns 12 remain on standby. The yarn 12 in use (the suffix “b” is attached to the reference numeral for easy understanding) 12 b is not held by the yarn holder 13 but is drawn below the splicer device 1.

  The yarn guide lever 14 that is angularly driven by the first motor 4 can hook the yarn 12a selected by the tip 14a. A side projection 14b is provided in the middle portion of the yarn guide lever 14, and the yarn 12b in use can be hooked in the middle of the angular displacement. A separator 15 is disposed between the yarn guide lever 14 and the yarn holder 13. The yarn holder 13, the yarn guide lever 14, and the separator 15 are provided on the front side with respect to the partition wall 100, and are arranged in this order from the front to the back in the order of the yarn holder 13, the separator 15, and the yarn guide lever 14. The yarn 12b in use passes through between the separator 15 and the yarn guide lever 14 and is guided downward. The waiting thread 12 passes through the ring 11 at the tip of the thread selection plate 10, passes the front side of the separator 15, and is held by the thread holder 13.

  The yarn guide lever 14 is angularly displaced about a horizontal axis that is perpendicular to the paper surface of FIG. The angular displacement of the yarn guide lever 14 is performed by the first motor 4. The first motor 4 has at least the motor body disposed on the back side with respect to the partition wall 100. The motor body is a portion excluding the output shaft. The first motor 4 is attached to the base 2 so that the output shaft is in a direction perpendicular to the paper surface of FIG. The output shaft of the first motor 4 can directly drive the yarn guide lever 14 or can be driven via a speed change mechanism or the like. The connection between the output shaft of the first motor 4 and the yarn guide lever 14 is realized through a hole formed in the partition wall 100. The yarn guide lever 14 is driven to reciprocate within a certain angular range. The first motor 4 switches the rotation direction in accordance with the switching of the angular displacement direction of the yarn guide lever 14.

  The splice nozzle 7 is a head portion that performs yarn splicing, and is disposed below the yarn holder 13 on the front side of the partition wall 100. The splicing nozzle 7 is formed with a linear groove 7a extending vertically from the inlet to the outlet, and the thread 12b being used and the selected thread 12a are fitted into the groove 7a, and the compressed fluid is compressed in the groove 7a. Yarn splicing can be performed by exposing to the flow of The groove 7a extends vertically, and has an inlet on the lower side opposite to the yarn holder 13 and has an outlet on the upper side which is the yarn holder 13 side. As the compressed fluid used in the splice nozzle 7, compressed air used in the air mechanism unit 6 is used.

  The second motor 5 has at least a motor body disposed on the back side with respect to the partition wall 100 and is attached to the base 2. The second motor 5 is attached so that the output shaft faces upward in FIG. The output shaft of the second motor 5 drives the yarn splicing mechanism 18. The yarn splicing mechanism 18 includes members that perform processing relating to yarn splicing in the vicinity of the inlet and the outlet of the groove 7a of the splice nozzle 7, respectively.

  Near the outlet of the groove 7a, the tip of the suction 19 is opened, and the end of the yarn can be sucked together with the surrounding air. The suction 19 is included in the air mechanism unit 6 and sucks a yarn end and the like by a suction force generated by a negative pressure generated around a negative pressure generating nozzle that ejects compressed air. Further, a yarn guide 20 for guiding the yarn in use is provided near the outlet of the splice nozzle 7.

  The yarn guide 20 is disposed closer to the yarn selection portion 3 than the groove 7a of the splice nozzle 7, and a guide surface 20a for guiding the yarn in use is formed at a position where the yarn guide 20 escapes from the groove 7a in the depth direction of the groove. Is done. Specifically, the thread guide 20 is formed at the lower end of the separator 15 and at the end opposite to the suction direction of the suction 19. The yarn guide 20 is formed between the partition wall 100 and the separator 15 and has a V-shaped groove. The V-shaped groove is formed by two guide surfaces that are tapered as the suction 19 is advanced in the suction direction. The guide surface protrudes in a direction opposite to the suction direction of the suction 19 from the suction 19 and the groove 7 a of the splice nozzle 7. A straight line connecting the guide portion and the yarn introduction portion 202 for introducing the yarn in use discharged from the splicer device 1 is warped from the groove 7 a of the splice nozzle 7.

  Furthermore, a thread presser 23 is provided at a position near the thread selection section 3 above the thread retainer 13. The thread retainer 23 is included in the air mechanism 6 and can retain the thread 12 in the same manner as the thread retainer 13. The yarn holder 13 and the yarn presser 23 are each realized by an air cylinder and driven by compressed air.

  A first solenoid valve unit 130 in which a supply control solenoid valve and a suction control solenoid valve are unitized is disposed behind the partition wall 100 and is fixed to the base 2. The supply control solenoid valve controls the supply and stop of supply of compressed air to the splice nozzle 7 and controls the execution and stop of the splicing operation of the yarn 12 by the splice nozzle 7. The suction control solenoid valve controls supply and stop of supply of compressed air to the negative pressure generation nozzle for generating suction force, and controls suction and suction stop by suction. Illustrations of a conduit that guides the compressed air to the splice nozzle 7, a negative pressure generating nozzle, a conduit connected to the nozzle, and the like are omitted. Further, on the back side with respect to the partition wall 100, a second solenoid valve unit 131 in which a thread holding control solenoid valve and a thread presser control solenoid valve are unitized is disposed and fixed to the base 2. The electromagnetic valve for yarn holding control controls supply and stop of supply of compressed air to the yarn holding 13 and controls execution and stop of holding of the yarn 12 by the yarn holding 13. The solenoid valve for thread presser control controls the supply and stop of supply of compressed air to the thread retainer 23, and controls the execution and stoppage of the thread 12 by the thread retainer 23.

  FIG. 6 is a plan view showing the configuration of the cutter 30 and the thread clamp 31. FIG. 7 is a perspective view showing the configuration of the cutter 30 and the thread clamp 31. FIG. 8 is a perspective view showing the splicer device 1 as viewed from below. 6 and 7 show only a part of the configuration of the splicer device 1 for easy understanding. A cutter 30 is disposed in the vicinity of the outlet of the groove 7 a of the splice nozzle 7. A thread clamp 31 is provided near the entrance of the groove 7 a of the splice nozzle 7. The cutter 30 and the yarn clamp 31 are included in the yarn splicing mechanism 18 and are driven by the second motor 5.

  A cam 36 is attached to the output shaft 5 a of the second motor 5. The cam 36 is disposed on the back side with respect to the partition wall 100. The cutter 30 has a fixed blade 30b and a movable blade 30a. A cutter operating mechanism 110 realized by a link mechanism is provided on the front side of the partition wall 100 and supported by link support shafts 35 and 45 fixed to the base 2. A cam follower link 111 is fixed to one link of the cutter operating mechanism 110 and is fixed to the movable blade 30a, and a cam driven link 111 provided through the hole of the partition wall 100 is fixed to the other link. The cam follower link 111 is provided with a follower 112 that contacts the cam surface of the cam 36. A cam mechanism is configured including the cam 36 and the cam follower link 111. Further, a follower abutting spring 113 is provided that applies a spring force to either the cutter operating mechanism 110 or the cam follower link 111 to abut the follower 112 against the cam surface of the cam 36. Therefore, the cam 36 is driven by the second motor 5, and the movable blade 30 a of the cutter 30 is driven to be displaced with respect to the fixed blade 30 b via the cutter operating mechanism 110.

  The thread clamp 31 includes a fixed part 31a and a movable part 31b. The fixing portion 31a is disposed on one of the two protrusions divided across the groove 7a of the splice nozzle 7. The movable portion 31b is supported on one link support shaft 35 so as to be angularly displaceable, and is angularly displaced by following the angular displacement of the movable blade 30a of the cutter 30 via the kick spring 40. The movable portion 31b is formed to be movable from the other projection of the splice nozzle 7 to one projection. The movable portion 31b is configured to be movable between an abutting position where it passes through the vicinity of the entrance of the groove 7a and abuts on the fixed portion 31a and a separated position that is separated from the fixed portion 31a by angular displacement. By moving the movable portion 31b to the contact position, the thread accommodated in the groove 7a of the splice nozzle 7 can be clamped and clamped. As described above, the thread clamp 31 closes the entrance of the groove 7a in a state where the selected thread 12a and the used thread 12b are fitted in the groove 7a, and also selects the selected thread 12a and the used thread 12b. Are clamped by the fixed portion 31a and the movable portion 31b. In this way, the yarn arranged in the groove 7a of the splice nozzle 7 can be clamped from the direction perpendicular to the axis thereof to strongly clamp the yarn.

  In the splicer device 1, the thread presser 23, the thread retainer 13, the suction 19, the thread guide 20, the cutter 30, the splice nozzle 7, and the thread clamp 31 are arranged in this order from the top to the bottom with respect to the partition wall 100. Is arranged in.

  FIG. 9 is a block diagram showing an electrical configuration necessary for controlling the splicing in the splicer device 1. The control unit 50 receives an instruction to perform piecing and an instruction to select which thread to switch to a thread in use. Further, the control unit 50 selects and electrically drives a solenoid for swinging and displacing the yarn selection plate corresponding to the selected yarn with respect to the yarn selection unit 3. Further, the control unit 50 electrically opens and closes the electromagnetic valves of the first and second electromagnetic valve units 130 and 131 for the yarn holder 13, the yarn presser 23, the splice nozzle 7 and the suction 19 to supply compressed air. The supply is stopped individually and the drive is controlled individually.

  For example, stepping motors are used as the first and second motors 4 and 5, and the angular position and the rotation direction can be adjusted by the number of drive pulses generated. In the control of the first motor 4, the control unit 50 responds to signals from the lever origin sensor 135 that detects the origin position of the yarn guide lever 14 and the action position sensor 136 that detects the action position. Then, the yarn guide lever is angularly displaced. The origin position of the thread guide lever 14 is a position where the thread guide lever 14 is retracted from each thread 12. The action position is a position where the selected thread 12a can be fitted into the groove 7a. In the control of the second motor 5, the control unit 50 responds to a signal from the cam origin sensor 137 that selects the origin position of the cam 36, and is a number that is angularly displaced to a predetermined angular position on the basis of the origin position of the cam 36. Control to give a pulse. The origin position of the cam 36 is a position where the blades 30a and 30b of the cutter 30 are opened and the thread clamp 31 opens the entrance of the groove 7a. The first and second motors 4 and 5 are driven to reciprocate so as to correspond to a certain angle range.

  FIG. 10 is a front view schematically showing the splicer device 1 in a state in which the yarn 12a for piecing is selected. FIG. 11 is a left side view schematically showing the splicer device 1 in the state of FIG. FIG. 12 is a front view schematically showing the splicer device in a state in which the selected yarn 12a is hooked at the tip 14a of the yarn guide lever 14. FIG. FIG. 13 is a front view schematically showing the splicer device 1 in a state in which the yarn 12 a selected by the tip 14 a of the yarn guide lever 14 is guided to the inlet of the splice nozzle 7. FIG. 14 is a side view schematically showing a configuration in the vicinity of the splice nozzle 7 in a state where the yarns 12a and 12b to be spliced are fitted in the grooves 7a of the splice nozzle 7. FIG. FIG. 15 is a side view showing a simplified configuration near the splice nozzle 7 in a state where the thread clamp 31 and the cutter 30 are acting. FIG. 16 is a flowchart showing the procedure of the yarn splicing operation including the states shown in FIGS.

  The yarn splicing operation is executed under the control of the control unit 50, and is started when the yarn 12 needs to be changed. In step s1, the yarns 12 are inserted through the rings 11 at the tips of the plurality of yarn selection plates 10, respectively. Of these, at least one yarn 12b is in use. The other ends of the yarn 12 are held by a yarn holder 13. The end of the waiting yarn 12 is held by the yarn holder 13 on the front side of the separator 15. The thread 12b in use is separated from the waiting thread 12 so as to pass through the back side of the separator 15 and extend downward. As a state of each part, the thread presser 23 is in an OFF state and does not press the thread. The yarn holding 13 is ON, and the end of the waiting yarn 12 is held. The suction 19 is OFF and is in a state where the yarn is not sucked. The cutter 30 is OFF, and the two blades 30a and 30b are opened. The thread clamp 31 is in a state where the inlet of the splice nozzle 7 is not blocked. That is, the cam 36 is at the origin position. The splice nozzle 7 is in an OFF state and no compressed fluid flows for piecing. In the yarn holding 13, the tip of the yarn 12 to be held is held so as to protrude downward from the yarn holding 13. The tip of the yarn 12 coming out from below the yarn holder 13 can be sucked if the suction 19 is turned on. The yarn guide lever 14 is at the origin position.

  In step s2, as shown in FIGS. 10 and 11, the control unit 50 causes the yarn selection unit 3 to select at least one yarn 12a. In particular, as clearly shown in FIG. 11, the selected yarn 12a moves to a position where it is caught by the tip 14a at a position on the movement locus of the angular displacement of the yarn guide lever 14. The side projection 14b of the thread guide lever 14 is provided at a position where the thread 12b in use can be hooked.

  In step s3, the control unit 50 controls the first motor 4 to start angular displacement from the origin position of the yarn guide lever 14 toward the operating position. When the thread guide lever 14 is hooked with the thread 12a selected by the thread selection unit 3 at the tip 14a while the thread guide lever 14 is angularly displaced, it can be pulled out sideways as shown in FIG. Although the end of the yarn 12a is held together with the end of the other waiting yarn by the yarn holding 13, the illustration of the other yarn is omitted. During the angular displacement of the thread guide lever 14, the thread 12b being used is hooked by the side protrusion 14b. The thread 12b in use passes through the back side of the separator 15 until it is caught by the side protrusion 14b. When hooked on the side protrusion 14b, the thread guide lever 14 is angularly displaced and moves to the front side of the separator 15 beyond the side edge of the separator 15 as shown in FIGS. It enters the presser 23. As shown in FIG. 10, the waiting thread 12 also enters the thread retainer 23. However, when the thread 12c that is on the right side of the currently used thread 12b is selected, the selected thread 12c entrains the used thread 12b without using the side protrusion 14b. These yarns 12 and 12b can be temporarily held by turning on the yarn presser 23.

  In step s4, the control unit 50 ends the angular displacement when the yarn guide lever 14 reaches the operating position. The leading end 14 a of the yarn guide lever 14 guides the selected yarn 12 a to the lower entrance of the splice nozzle 7, and the selected yarn 12 a is fitted into a splicing groove 7 a provided in the splice nozzle 7. The end of the selected yarn 12a is held by a yarn holder 13 above the splice nozzle 7. The thread 12b in use passes over the side end of the separator 15 and is inserted into the thread retainer 23 that is opened in the OFF state, and extends to the ring 11b of the thread selection plate 10b.

  In step s5, the control unit 50 controls the suction control electromagnetic valve to turn on the suction 19, and at the same time controls the yarn presser control electromagnetic valve to turn on the thread presser 23. Since the suction 19 is turned ON, as shown in FIG. 13, the tip of the yarn 12 held on the yarn holding 13 including the selected yarn 12a, the tip of the yarn holding down 13 from the yarn holding 13 is the suction. 19 is aspirated. Further, the thread presser 23 presses the thread 12b in use.

  In step s6, the control unit 50 controls the second motor 5 to start angular displacement of the cam 36 from the origin position. As a result, the movable portion 31b of the thread clamp 31 is angularly displaced and turned ON, the inlet of the groove 7a of the splice nozzle 7 is closed, and at the same time, the selected thread 12a fitted in the groove 7a and the in-use thread 12a. The thread 12b is clamped in cooperation with the fixing portion 31a. Further, by starting the angular displacement of the cam 36 from the origin position, the cutter 30 is turned on, and the selected thread 12a and the used thread 12b are cut in the vicinity of the exit of the groove 7a. As described above, in step s6, the state shown in FIG. 14 is changed to the state shown in FIG.

  Next, in step s7, the control unit 50 controls the supply control solenoid valve to start the supply of compressed air to the groove 7a of the splice nozzle 7 and start the yarn splicing. The groove 7a of the splice nozzle 7 is provided with a nozzle of compressed air, forms an air flow in the direction from the inlet to the outlet, untwists the yarns 12a and 12b in the air flow, and then entangles them again to form the yarn by splicing. Perform splicing. In step s8, the control unit 50 controls the yarn holding control electromagnetic valve to turn off the yarn holding 13 and release the holding of the yarn 12. The selected end of the yarn 12a is released from the yarn holder 13 and is sucked into the suction 19 as yarn waste. Since the thread presser 23 is turned ON in step s6, the waiting thread 12 including the thread 12b in use is pressed by the thread presser 23. For example, if the suction force of the suction 19 is sufficient, the yarn holder 13 can be turned off even if the yarn presser 23 is not provided.

  In step s9, the control unit 50 controls the supply control solenoid valve to stop the supply of compressed air to the groove 7a of the splice nozzle 7 and finish the yarn splicing. In step s10, the control unit 50 controls the yarn holding control electromagnetic valve to turn on the yarn holding 13, and holds the vicinity of the end of the yarn 12 in the standby state. The yarn 12b in use is held by the yarn holder 13 at the upper part from the cutting position by the cutter 30 in step s6, and enters a standby state. In step s11, the control unit 50 controls the second motor 5 to angularly displace the cam 36 to the origin position in a direction opposite to the angular displacement direction in step s6. The thread clamp 31 is turned off to release the spliced thread, and the inlet of the groove 7a of the splice nozzle 7 is opened. Further, the cutter 30 is also turned off, and the cutting edge is opened.

  In the next step s12, the control unit 50 controls the suction control solenoid valve and the thread presser control solenoid valve to turn off the suction 19 and the thread presser 23 simultaneously. The suction of the thread 12 by the suction 19 is stopped, and the pressing of the thread 12 by the thread presser 23 is stopped. In step s13, the control unit 50 rotates the first motor 4 in the direction opposite to that in step s3, returns the yarn guide lever 14 to the origin position, and the yarn splicing operation ends.

  FIG. 17 is a diagram for explaining the yarn position 200 during knitting and the yarn position 201 during yarn splicing. FIG. 18 is an enlarged plan view showing the vicinity of the yarn guide 20. As shown in FIG. 18, the groove 7a of the splice nozzle 7 is formed with a V-shaped space 7b that is recessed in a V-shape and a yarn splicing space 7c that continues to the deepest region of the V-shaped space 7b. The yarn splicing space 7c is formed so as to swell from the deepest region of the V-shaped space 7b.

  As shown in FIG. 18, the guide surface 20 a of the yarn guide 20 is formed to be separated from the yarn splicing space 7 c by a predetermined first set distance D1 or more in a direction opposite to the suction direction of the suction 19. As a result, the yarn in use at the time of knitting is guided to the yarn guide 20 and to the yarn introduction portion 202 that guides the yarn in use discharged from the splicer device 1. When the tension is applied, the yarn is stretched as shown in FIG. 17, and the yarn in use escapes from the yarn splicing space 7c and is positioned in the V-shaped space 7b. Thus, the yarn can be smoothly fed out by passing through a wider area than the yarn splicing space 7c.

  Further, as shown in FIG. 13, the tip 14a of the yarn guide lever 14 disposed at the operating position is formed so as to be separated from the yarn splicing space 7c by a predetermined second set distance D2 or more in the suction direction of the suction 19. . As a result, at the time of yarn joining, the yarn being used is guided by the tip 14a of the yarn guide lever 14 and placed in the yarn joining space 7c. Similarly, the selected yarn is also guided by the tip 14a of the yarn guide lever 14 and placed in the yarn splicing space 7c.

  This makes it possible to guide the yarn with a simple structure. Further, since the yarn guide 20 is connected to the separator 15, the yarn guide 20 can be disposed in the vicinity of the suction 19 and can be prevented from interfering with the splice nozzle 7 and the yarn guide lever 14.

  FIG. 19 shows a configuration in which the splicer device 1 is mounted on the flat knitting machine 60 and the knitting yarn 61 is used as the yarn 12 for piecing. The splicer device 1 can be attached to other devices such as a loom or a winder. The flat knitting machine 60 is proposed, for example, as Japanese Patent Application No. 2004-303761. Although not shown, a cone capable of supplying a plurality of types of yarns with different colors and properties is placed on the flat knitting machine 60. Knitting of the knitted fabric by the flat knitting machine 60 is performed by selectively driving the knitting needles arranged on the needle bed 62 with a cam mechanism mounted on a carriage 63 that runs along the needle bed 62. In order to supply the knitting yarn 61 to the knitting needle, the carriage 63 carries the yarn feeder 64. In the flat knitting machine 60, a plurality of yarn feeders 64 can be selected and the knitting yarns 61 can be switched. However, the number of usable yarn feeders 64 is limited, and therefore the number of knitting yarns 61 that can be changed is also limited. There is a limit. If the splicer device 1 can switch the knitting yarns 61, even one yarn feeder 64 can switch the knitting yarns 61 to be supplied to a plurality, and the number of knitting yarns 61 used for the knitted fabric to be knitted can be greatly increased. Can be increased.

  The length of the knitting yarn 61 knitted in the knitted fabric to be knitted can be calculated in advance under the condition that the tension variation of the knitting yarn 61 is small. In order to improve the quality of the knitted fabric to be knitted, it is preferable to avoid sudden tension fluctuations, and therefore, a knitting yarn constant delivery device 65 is provided. When the timing at which the splicer device 1 switches the knitting yarn 61 is adjusted so as to match the position at which the knitting yarn 61 is switched on the knitted fabric, the knitting yarn switches at the knitted fabric at the spliced portion where the type of the knitting yarn 61 is switched. Weaved near the part. It is also possible to perform knitting processing so that the yarn splicing portion is not visible from the surface of the knitted fabric.

  As described above, in the splicer device 1 mounted on the side of the flat knitting machine 60, the base 2 is arranged so that the supply side of the plurality of knitting yarns 61 is the upper side and the use side of the knitting yarns 61 is the lower side. Since the first motor 4 and the second motor 5 are supported by the selection unit 3 at the top and the lower part of the yarn selection unit 3, respectively, the selected knitting yarn 61 can be spliced down. Since the first motor 4 drives the yarn guide lever 14 to be angularly displaced about the horizontal axis, the selected knitting yarn 61 can be hooked on the yarn guide lever 14 and guided downward. Since the second motor 5 includes the second motor 5 whose output shaft is directed downward, the second motor 5 can be driven downward for piecing. Since the suction 19 is disposed in the vicinity of the outlet of the groove 7a of the splice nozzle 7, yarn waste generated by the yarn splicing can be sucked and removed.

  The base 2 supports the splice nozzle 7 below the first motor 4, the second motor 5 and the suction 19 so that the outlet is on the upper side and the inlet is on the lower side. When the splicing nozzle 7 becomes the entrance and the piecing from the knitting yarn 61 in use to the selected knitting yarn is completed, the knitting yarn 61 in use can be immediately switched to the selected yarn.

  However, since the operation of the splicer device 1 is not significantly affected by gravity, the arrangement of each part can be made upside down, for example, so as to supply the yarn from below to above.

  In the splicer device 1, at least one yarn 12 b of the plurality of yarns 12 can be spliced to at least one other yarn 12 a during use. For example, two yarns 12a can be selected and spliced with three yarns 12b in use. The yarn holder 13 holds the leading end side of the yarn 12 that is not in use among the plurality of yarns 12, and the yarn selection unit 3 is a yarn to be spliced from the yarns 12 held by the yarn holder 13. Since 12a is selected, an arbitrary yarn 12a can be selected from the plurality of yarns 12 to perform piecing. Since the splicing nozzle 7 joins the yarn 12a selected by the yarn selecting unit 3 and the yarn 12b in use in the groove 7a by the flow of the compressed fluid, the splice nozzle 7 is selected as the yarn 12b in use. The thread 12a is continuously connected at the inlet of the splice nozzle 7.

  The yarn guide lever 14 hooks the yarn 12a selected by the yarn selection unit 3 to the tip 14a and guides the yarn 12a to the entrance of the groove 7a and arranges it in the groove 7a. Is also guided to the groove 7a and placed in the groove 7a together with the selected thread 12a. The yarn guide lever 14 is driven by the first motor 4. The suction 19 sucks the yarn 12 near the exit of the groove 7a. The thread clamp 31 closes the inlet of the groove 7a during splicing while the selected thread 12a and the thread 12b in use are fitted in the groove 7a, thereby preventing the compressed fluid from leaking from the inlet. , Can be spliced efficiently. The yarn clamp 31 clamps the yarn 12b being used and the yarn 12a selected by the yarn selection unit 3 near the entrance of the groove 7a while being spliced by the splice nozzle 7, and is clamped after the yarn splicing is completed. Therefore, the tension applied to the yarn can be prevented from acting on the yarn joining portion formed in the groove 7a during the yarn joining.

  Since the cutter 30 cuts the used yarn 12b to be spliced and the selected yarn 12a in the vicinity of the exit of the groove 7a, the length of the spliced portion to be formed can be limited. Since the second motor 5 is provided with the cutter 30 and the thread clamp 31 separately from the first motor 4 that drives the thread guide lever 14, the cutter 30 and the thread clamp 31 are independent of the thread guide lever 14. For example, with a weak yarn, the yarn guide lever 14 can be angularly displaced at a low speed, and other mechanisms can be moved at a normal speed.

  The base 2 includes a yarn holder 13, a yarn selector 3, a splice nozzle 7, a yarn guide lever 14, a first motor 4, a suction 19, a cutter 30, and a second motor 5. Therefore, each part can be arranged so that the required space is reduced, each part can be supported compactly, and the apparatus can be downsized. In addition, since the base 2 has the partition wall 100, a thread splice is performed on the front side of the partition wall 100 where the thread holding 13, the splice nozzle 7, the thread guide lever 14, the cutter 30, the suction 19 and the thread guide 20 are provided. It is possible to suppress the generated fiber dust from scattering to the back side of the partition wall 100 where the first and second motors 4 and 5 and the first and second electromagnetic valve units 130 and 131 are disposed. Therefore, it is possible to prevent malfunction caused by fiber dust getting caught in the first and second motors 4 and 5 and the first and second electromagnetic valve units 130 and 131. Thus, a suitable splicer device 1 can be realized. Moreover, the splicer device 1 incorporating the electromagnetic valve can be realized.

  Since the output shaft of the first motor 4 and the angular displacement axis of the yarn guide lever 14 are parallel, the space required for driving the yarn guide lever 14 by the first motor 4 can be reduced. The yarn guide lever can be angularly displaced within a predetermined angle range, and the space necessary for angularly moving the yarn guide lever can also be limited within the predetermined angle range. Necessary space can be reduced. The cutter 30 and the thread clamp 31 are driven by the second motor 5 through a cam mechanism. Therefore, the cutter 30 and the thread clamp 31 can be driven with their operations synchronized.

  The present invention can be implemented in various other forms without departing from the spirit or main features thereof. Therefore, the above-described embodiment is merely an example in all respects, and the scope of the present invention is shown in the claims, and is not restricted by the text of the specification. Further, all modifications and changes belonging to the scope of the claims are within the scope of the present invention.

Claims (8)

A splicer device capable of splicing to at least one other thread while using at least one of a plurality of threads,
A holding portion that holds a tip portion of the yarn that is not in use among the plurality of yarns;
A selection unit for selecting a yarn to be spliced from the yarns held by the holding unit;
A head that joins the yarn selected by the selection unit and the yarn in use in a groove formed from an inlet on the opposite side of the holding unit to an outlet on the holding unit by joining a compressed fluid,
A thread guide lever that guides the thread selected by the selector to the entrance of the groove of the head;
A first drive unit for driving the yarn guide lever;
Suction for sucking yarn near the exit of the groove in the head,
A cutter that cuts the used yarn to be spliced and the selected yarn near the exit of the groove in the head;
A second drive unit that drives the cutter to interlock with the yarn guide lever;
A holding unit, a selection unit, a head, a thread guide lever, a first drive unit, a suction, a cutter, and a second drive unit that support the mutual positional relationship and have a base functioning as a partition;
Including
A splicer device, wherein at least a holding part, a head part, a thread guide lever, a cutter and a suction are arranged on one side of the base, and at least first and second driving parts are arranged on the other side of the base. A solenoid valve for supply control, which is disposed on the other side of the base and controls supply and stop of supply of compressed fluid to the head;
The splicer device according to claim 1, further comprising a suction control electromagnetic valve disposed on the other side of the base and controlling suction and suction stop of the yarn by suction. The holding part is driven by the compressed fluid,
3. A holding part control electromagnetic valve is provided on the other side of the base, and supply and stop of supply of compressed fluid to the holding part are controlled by the holding part control electromagnetic valve. The splicer device described in 1.   Driven by the second drive unit, the selected yarn and the used yarn are fitted in the groove, the inlet portion side of the groove is closed, and the selected yarn and the used yarn are clamped. The splicer device according to any one of claims 1 to 3, further comprising a thread clamp to be operated.   A yarn guide that guides the yarn being used, and is a guide surface that is arranged closer to the selection portion than the groove of the head and guides the yarn that is being used to a position where it has escaped from the groove of the head in the depth direction of the groove. The splicer device according to any one of claims 1 to 4, further comprising a yarn guide on which the thread is formed. The base has a partition wall extending in a direction connecting the yarn supply side of the plurality of yarns and the yarn use side,
The selection unit is disposed on the yarn supply side of the partition from the partition wall, and is supported by the end of the base on the yarn supply side,
The first driving unit and the second driving unit are respectively supported by the base on the yarn use side and the other side of the partition wall from the selection unit,
On one side of the bulkhead, the holding part, suction, cutter and head are supported on the base in the order of the holding part, suction, cutter and head from the yarn supply side to the yarn usage side. The splicer device according to any one of claims 1 to 5, wherein The first drive unit is a motor having an output shaft,
The thread guide lever is provided so as to be angularly displaceable within a predetermined angle range around an angular displacement axis parallel to the output shaft of the motor. Splicer device. The second driving unit is a motor,
5. The splicer device according to claim 4, wherein the cutter and the thread clamp are driven by a motor via a cam mechanism.

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