JP2010132359A - Splicer device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a splicer device which can be reduced in size, and can bloc a cutout for thread insertion formed at a splice head during thread connection. <P>SOLUTION: A yarn 12a to be thread-connected by a yarn selecting part 3 is selected from a plurality of yarns 12 held by a holding part 13. The selected yarn 12a and a yarn 12b in use are guided by a yarn guide lever 14 and inserted into a thread-connecting hole 7b via the cutout 7a of the splice head 7. A cover member 300 of the yarn guide lever 14 is arranged to be fitted to the cutout 7a of the spice head 7 in a state that the yarn 12b is use and the selected yarn 12a are inserted through the thread-connecting hole 7b. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a splicer device for splicing yarn by spraying a compressed fluid onto a plurality of yarns.

  Conventionally, when forming a knitted fabric or a woven fabric, it is necessary to splice ends of different yarns. The splicer device inserts a plurality of yarns into a yarn splicing hole provided in the splice head and blows a compressed fluid, thereby untwisting fibers at the end of the yarn and then intertwining each other to form a seam. The splicer device is used, for example, for piecing in a winder that winds a yarn and forms a cone that is mounted on a loom or the like.

  In order to insert the yarn into the splicing hole, the splice head is formed with a notch reaching the splicing hole over the entire length in the axial direction of the splicing hole. In the conventional splice head, the notch is formed in a slit shape so that the yarn being spliced does not jump out by the compressed fluid, and the notch is formed wide so that the thread can be easily put in and out. In some cases, a lid member for closing the notch is provided (see, for example, Patent Documents 1, 2, and 3).

  Also, as a splicer device, when piecing is performed with the ends of the yarns to be spliced aligned, the spliced portion where the ends are intertwined from the straightly connected yarns extends laterally, so to speak, it is a T-shaped yarn. When the splicing is performed with the spliced portion formed (see, for example, Patent Document 3) and the end of the yarn facing each other, the spliced portion covers the periphery of the yarn that is linearly connected. In other words, there is a so-called I-shaped yarn splicing portion (see, for example, Patent Documents 1 and 2).

Japanese Examined Patent Publication No. 62-23699 JP 2000-63044 A JP 2004-27463 A

  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 a knitting machine, it is possible to use a plurality of yarns alternately, but if the part where the same yarn is used is separated from the knitted fabric that is formed, a transition yarn will be formed. No crossover yarn is produced. 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. 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.

  Further, when the splicer used in the knitting machine switches colors, for example, in the aforementioned I-shaped yarn splicing portion, 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. Furthermore, a mechanism for automatically inserting a yarn to be spliced into a splice head is required for incorporation into a knitting machine or the like.

  Also, when the notch for inserting the splice head thread is formed in a slit shape, if the tension applied to the thread is weak, the thread will be caught and stopped in the middle of passing the thread through the slit notch. May end up. In addition, even when the yarn can be inserted into the yarn splicing hole, the T-shaped yarn splicing portion may fit into the slit-shaped notch at the time of splicing, so that sufficient splicing may not be possible. In the case of providing a lid member that covers the notch, there is no problem as described above. However, in order to drive the lid member, some kind of drive mechanism is required, and the splicer device is enlarged.

  When the splicer devices described in Patent Documents 1 to 3 are studied, all of these splicer devices are provided in a winder and are not suitable for being provided in a yarn supply path of a knitting machine. Further, the spliced portion formed by the splicer device described in Patent Documents 1 and 2 is I-shaped and is not suitable for splicing in a knitting machine.

  The splicer devices disclosed in Patent Documents 1 to 3 are all provided with a lid member for closing the notch for inserting the yarn. In addition to the lever for guiding the thread, a mechanism for closing the notch for inserting the thread is provided, which is not suitable for downsizing. Further, Patent Document 3 does not describe a thread insertion mechanism that can automatically insert a thread into a splice head.

  An object of the present invention is to provide a splicer device that includes a lid member that closes a notch for thread insertion, can be miniaturized, and forms a T-shaped yarn splicing portion.

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) a holding portion that holds an end portion of a yarn that is not in use among the plurality of yarns;
(B) a yarn selection unit that selects a yarn to be spliced from the yarns held by the holding unit;
(C) A yarn splicing hole penetrating from the inlet on the side opposite to the holding portion to the outlet on the holding portion side, and a notch for opening the yarn splicing hole over its entire length in the axial direction are formed and selected by the yarn selecting portion A splice head that is spliced by the flow of compressed fluid in a state where the thread to be used and the thread in use are inserted through the splicing hole;
(D) The hook portion that captures the yarn selected by the yarn selection portion, and the lid member that closes the notch, and the hook portion is arranged in the vicinity of the entrance of the yarn splicing hole from a predetermined origin position. The yarn selected by the yarn selection unit is moved to a position in a state where the yarn is captured by the hook unit, thereby guiding the selected yarn to the yarn splicing hole through the notch and the lid. A thread guide lever that closes the notch with a member;
(E) a drive unit that drives the thread guide lever to move between the predetermined origin position and the action position;
A splicer device comprising:

  In the splicer device of the present invention, the surface of the lid member that faces the yarn splicing hole in a state where the notch is closed by the lid member is an inner peripheral surface that faces the yarn splicing hole and continues in the circumferential direction. It is preferable to constitute a part of

In the splicer device of the present invention, it is preferable that the lid member is replaceable.
In the splicer device according to the present invention, the yarn guide is disposed closer to the yarn selection portion than the splice head, and guides the yarn in use in a direction to escape from the yarn splice hole of the splice head to the notch side. Further including
It is preferable that the yarn guide lever has a protrusion that passes through a tension path of the used yarn extending between the yarn selection portion and the yarn guide when the yarn guide lever moves between the origin position and the operation position.

  According to the present invention, the splicer device can select and splice an arbitrary yarn from yarns not in use as yarns in use. In the splice head, the selected yarn and the yarn in use are inserted through the yarn splicing hole and joined by the flow of compressed fluid to join the yarn, so the yarn is twisted at the portion inserted through the splicing hole. Are once unwound and then entangled with each other to form a spliced portion. The thread guide lever moves to the operating position where the hook part is arranged in the vicinity of the entrance of the yarn splicing hole in a state where the thread for selection is captured by the hook part. Therefore, the thread being used and the selected thread are The splice heads are continuously connected on the inlet side of the splicing hole to form a T-shaped splicing portion. Since the lid member is attached to the thread guide lever so as to close the notch of the splice head when the thread guide lever moves to the operating position, in addition to the drive unit that drives the thread guide lever, the lid member is for driving the lid member. No drive mechanism is required. Therefore, the apparatus can be reduced in size.

  Further, according to the present invention, in the state where the notch of the splice head is closed by the lid member, the lid member and the splice head form an inner circumferential surface that faces the yarn splicing hole and continues in the circumferential direction. Thread splicing can be performed smoothly without causing the inserted thread to be caught.

  Further, according to the present invention, since the lid member can be configured to be replaceable, the yarn splicing is performed according to the type of yarn, such as single yarn, twin yarn and triplet yarn composed of three single yarns, and the number of yarns. The shape of the inner peripheral surface facing the hole can be changed.

  Further, according to the present invention, the yarn guide is disposed at a position for guiding the yarn in use in a direction to escape from the splicing hole of the splice head to the notch side, and the yarn being used is spliced during knitting. Since it can be prevented from being fitted into the yarn splicing hole of the head, a smooth knitting operation can be realized. When the yarn guide lever moves to guide the selected yarn at the time of yarn splicing, the yarn guide lever protrusion passes through the thread tension path that is in use across the yarn selector and the yarn guide. By pulling the yarn, it is possible to remove the yarn in use from the yarn guide and guide it to the yarn splicing hole, so that it is not necessary to drive the yarn guide, and the structure of the splicer device can be further simplified. it can.

  FIG. 1 and FIG. 2 are perspective views showing a pricing device 1 according to an embodiment of the present invention as viewed from above the front side. FIG. 1 shows a state in which the yarn guide lever 14 is at the origin position. 2 shows a state in which the yarn guide lever 14 is in the operating position.

  The splicer device 1 includes a base 2, a yarn selection unit 3, first and second drive units realized by an electric motor, a holding unit 13, a splice head (hereinafter referred to as a head) 7, a yarn guide lever 14, a suction unit 19, The thread presser 23, the cutter 30, the thread clamp 31, and the partition wall 100 are supported.

  The thread selection unit 3 is disposed on the uppermost part of the base 2 provided above the partition wall 100. On the front side of the partition wall 100, the thread presser 23, the holding unit 13, the suction unit 19, the cutter 30, the head 7, and the thread clamp 31 are arranged in this order from top to bottom, and on the back side of the partition wall First and second driving units are arranged. In the splicer device 1, the yarn being used is supplied from above to below, but the operation of the splicer device 1 is not significantly affected by gravity. It is also possible to supply the yarn.

  The thread selection unit 3 has a plurality of thread selection levers 10 that can be oscillated and displaced by individually provided solenoids. A thread 12 is inserted into a ring 11 provided at the tip of the thread selection lever 10. For ease of understanding, the suffix “a” is attached to the selected thread selection lever, its ring, and the code of the thread inserted through the ring. Although FIG. 1 shows a state in which the rightmost thread selection lever 10a is selected and the ring 11a at the distal end is drawn toward the base 2, the other thread selection levers 10 can be operated in the same manner. The unselected yarn 12 continues in a standby state, and its end portion is held by the holding unit 13. The holding portion 13 is opened and closed by fluid pressure, and can hold the end portions of the plurality of yarns 12 simultaneously in the closed state. The yarn 12 in use (the suffix “b” is attached to the reference numeral for easy understanding) 12 b is not held by the holding portion 13 but is drawn below the splicer device 1.

  The yarn guide lever 14 has a predetermined origin position and a working position where the yarn splicing is performed by the first drive unit responding to a signal from the lever origin sensor 135 that detects the origin position and the action position sensor 136 that detects the action position. Is driven around the predetermined axis, and is driven so as to reciprocate within a certain angular range. The origin position of the thread guide lever 14 is a position where the thread guide lever 14 is retracted from each thread 12, and the operating position is a position where the selected thread 12a can be inserted into the splicing hole 7b. A hook portion 14a is provided at the free end of the yarn guide lever 14, and the yarn 12a selected by the hook portion 14a can be hooked. A protrusion 14b is provided at the intermediate portion of the yarn guide lever 14, and the yarn 12b in use can be hooked in the middle of the angular displacement. Further, the lid member 300 is detachably attached to a portion of the yarn guide lever 14 near the hook portion 14a. The lid member 300 is fitted into a notch 7a of the head 7 described later when the yarn guide lever 14 is in the operating position.

  A separator 15 is disposed between the yarn guide lever 14 and the holding portion 13. The holding part 13, the thread 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 holding part 13, the separator 15 and the thread 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 lever 10, passes the front side of the separator 15, and is held by the holding unit 13.

  FIG. 3 is a perspective view showing the head 7 and the lid member 300 of the yarn guide lever 14 taken out. FIG. 3A is a view before the lid member 300 is fitted into the notch 7a of the head 7. FIG. A state is shown and FIG.3 (2) shows the state after a fitting.

  The head 7 is formed with a yarn splicing hole 7b that penetrates in the vertical direction and a notch 7a that opens the splicing hole 7b over its entire length in the axial direction. The lower side of the yarn splicing hole 7b is an inlet, and the upper side is an outlet. As shown in FIG. 3, the cross-sectional shape perpendicular to the axial direction of the notch 7a is substantially V-shaped, and the cross-sectional shape perpendicular to the axial direction of the yarn splicing hole 7b is substantially C-shaped. The head 7 has a gas injection hole for injecting compressed air as a compressed fluid into the yarn joining hole in a direction perpendicular to the axis of the yarn joining hole 7b. The wedge-shaped lid member 300 is formed so as to be fitted into the notch 7a.

  In the present embodiment, the lid member 300 is replaced so that the size and shape of the yarn splicing hole 7b can be changed according to the type of yarn, the thickness of the yarn, the material of the yarn, the number of yarns, and the like. can do. FIG. 4 is a plan view showing the head 7 and the lid members 300a, 300b, and 300c, and shows a modification of the shape of the lid member 300. FIG. Here, in each figure of FIG. 4, the gas injection hole 7c is formed in the position facing the notch 7a.

  In the lid member 300a shown in FIG. 4A, the surface 301a facing the yarn splicing hole 7b is curved in a direction away from the yarn splicing hole 7b, and is formed in a cylindrical shape that is continuous in the circumferential direction by the lid member 300a and the head 7. The inner surface is configured. As a result, the portion where the yarn inserted through the yarn joining hole 7b is caught is eliminated, and the yarn joining can be performed smoothly.

  In the lid member 300b shown in FIG. 4 (2), the inner surface formed by the lid member 300a and the head 7 is continuous in the circumferential direction, and the surface 301b facing the yarn splicing hole 7b of the lid member 300b is formed on a plane. . As a result, the compressed air injected from the gas injection hole 7c can be violently blown to the yarn inserted through the yarn splicing hole 7b, and the yarn can be untwisted and entangled strongly.

  In the lid body 300c shown in FIG. 4 (3), the inner surface formed by the lid member 300a and the head 7 is continuous with the circumferential direction and is a portion facing the gas injection hole 7c along the gas injection hole 7c. It protrudes. In such a case, the flow of compressed air injected from the gas injection hole 7c collides with the inner surface 301c facing the yarn joining hole 7b of the lid 300c, and then flows mainly divided in the circumferential direction of the yarn joining hole 7b. The swirl flow swirls in the circumferential direction, and the yarn to be spliced can be entangled more strongly.

  Referring to FIGS. 1 and 2, the thread presser 23 is for holding the thread 12 arranged in the action area, as with the holding part 13, and is closer to the thread selection part 3 side above the holding part 13. It is provided in the position. The thread presser 23 is driven by compressed air, similarly to the holding unit 13, and is realized by, for example, an air cylinder.

  The suction portion 19 is provided in the vicinity of the exit of the yarn splicing hole 7b, and can suck the end of the yarn together with the surrounding air.

  On the back side with respect to the partition wall 100, an electromagnetic valve for the head for supplying and stopping the supply of compressed air to the gas injection hole of the head 7, and introduction and stop of introduction of the suction force to the suction portion 19 are performed. And a solenoid valve for the suction part. Illustrations of the conduit for guiding the compressed air to the head 7 and the conduit connected to the suction unit 19 are omitted. Further, on the back side of the partition wall 100, a solenoid valve for a holding unit for supplying and stopping the supply of compressed air to the holding unit 13 and a supply and supply stop of compressed air to the yarn presser 23 are performed. And an electromagnetic valve for holding the yarn for the purpose.

  The yarn guide 20 guides the yarn 12b in use and positions the stretch path of the yarn 12b in use during knitting. FIG. 5 is a diagram for explaining the yarn position 200 during knitting and the yarn position 201 during yarn splicing. The yarn guide 20 is disposed near the exit of the head 7 and closer to the selection unit 3 than the head 7 and guides the yarn 12b in use in a direction to escape from the yarn joining hole 7b to the notch 7a. Specifically, the yarn guide 20 is formed between the partition wall 100 and the separator 15 at the lower end portion of the separator 15 and at the end portion in the direction of exiting from the yarn splicing hole 7b toward the notch 7a. The

  The yarn guide 20 has a V-shaped groove, and has two guide surfaces formed to taper as it advances in the direction opposite to the direction of escape from the yarn splicing hole 7b to the notch 7a. The yarn in use at the time of knitting is guided to the yarn guide 20 and guided to the yarn introduction portion 202 that guides the yarn in use discharged from the splicer device 1 and is given tension. It escapes from the yarn splicing hole 7b and is located in the notch 7a.

  At the time of yarn splicing, the yarn 12b in use is caught by the protrusion 14b while the yarn guide lever 14 is angularly displaced from the origin position to the operating position, and is separated from the yarn guide 20 to the front side from the back side of the separator 15. And is guided by the hook portion 14a and disposed in the yarn splicing hole 7b. Thus, since it is not necessary to drive the yarn guide 20 in order to guide the yarn 12b in use to the yarn splicing hole 7b, the structure of the apparatus can be simplified.

  FIG. 6 is an enlarged view showing the vicinity of the head 7. The cutter 30 has a fixed blade 30a and a movable blade 30b, is disposed in the vicinity of the exit of the yarn splicing hole 7b of the head 7, and can cut the yarn disposed in the splicing hole 7b. The yarn clamp 31 includes a fixed portion 31a and a movable portion 31b. The yarn clamp 31 is provided near the entrance of the yarn splicing hole 7b of the head 7 and can hold the yarn disposed in the yarn splicing hole 7b. The cutter 30 and the thread clamp 31 are driven by the second drive unit, and the second drive unit drives the movable blade 30a to be displaced with respect to the fixed blade 30b as shown in FIGS. 6 (1) and 6 (2). .

  The movable part 31b of the thread clamp 31 moves following the angular displacement of the movable blade 30b, and the selected thread 12a and the thread 12b in use are inserted through the thread splice hole 7b as shown in FIG. ), The entrance of the yarn splicing hole 7b can be closed, and the selected yarn 12a and the yarn 12b in use can be sandwiched between the fixing portions 31a.

  For example, a stepping motor is used for the first and second drive units, and the angular position and the rotation direction can be adjusted by the number of drive pulses generated.

  FIG. 7 is a flowchart showing the procedure of the yarn splicing operation. 8 to 11 show the operating state of the yarn joining device 1 included in the flowchart of FIG. Hereinafter, each step of the flowchart shown in FIG. 7 will be described with reference to FIGS. 6 and 8 to 11 as appropriate.

  The yarn splicing operation is started when the yarn 12 needs to be changed. In step s1, the thread 12 is inserted through the ring 11 at the tip of the plurality of thread selection levers 10, and at least one thread 12b is in use. The other end portion of the yarn 12 is held by the holding portion 13. The holding portion 13 holds the end portion of the waiting yarn 12 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 for the state of each part, the thread presser 23 does not press the thread, the holding part 13 holds the end part of the waiting thread 12, the suction part 19 does not suck the thread, and the cutter 30 The two blades 30a and 30b are open, the yarn clamp 31 does not block the inlet of the head 7, and the head 7 is not supplied with compressed air for yarn splicing. Further, the holding portion 13 holds the end portion of the yarn 12 to be held so as to protrude downward from the holding portion 13, and this end portion can be sucked by the suction portion 19. The yarn guide lever 14 is at the origin position. The operation of each unit is controlled by a control unit realized by a microcomputer, for example.

  In step s2, as shown in FIG. 8 and FIG. 9, at least one yarn 12a is selected by the yarn selection unit 3. The selected yarn 12a is moved to the position where the yarn guide lever 14 is hooked by the angular displacement of the yarn guide lever 14 and is hooked by the hook portion 14a.

  In step s3, the first drive unit is controlled to start angular displacement from the origin position of the yarn guide lever 14 toward the operating position. While the thread guide lever 14 is angularly displaced, the selected thread 12a is hooked by the hook portion 14a and the thread 12b being used is hooked by the protrusion 14b. As a result, the yarn 12a can be pulled out sideways as shown in FIG. Although the ends of the yarns 12a are held together with the ends of the other waiting yarns by the holding unit 13, illustration of the other yarns is omitted. The thread 12b in use is guided by the thread guide 20 through the back side of the separator 15 until it is caught by the protrusion 14b, and when it is caught by the protrusion 14b, as shown in FIGS. 10 and 11, the thread guide 20 , And moves to the near side of the separator 15 beyond the side edge of the separator 15 and enters the working area of the thread presser 23. As shown in FIG. 8, the waiting thread 12 also enters the working area of the thread presser 23. However, when the thread 12c on the right side of the currently used thread 12b is selected, the selected thread 12c entrains the used thread 12b without using the protrusion 14b. These yarns 12 and 12 b can be temporarily held by the yarn presser 23.

  In step s4, the yarn guide lever 14 reaches the operating position and ends the angular displacement. The hook portion 14 a at the free end of the yarn guide lever 14 guides the selected yarn 12 a to the lower entrance of the head 7, and the selected yarn 12 a is fitted into a yarn splicing hole 7 b provided in the head 7. The end side of the selected thread 12 a is held by the holding portion 13 above the head 7. The yarn 12b in use gets over the side end of the separator 15 and is inserted into the open yarn retainer 23, and is guided by the hook portion 14a of the free end of the yarn guide lever 14 to enter the yarn splicing hole 7b. Be placed. When the yarn guide lever 14 reaches the operating position, the lid member 300 is fitted into the notch 7a of the head 7, so that a dedicated drive mechanism for driving the lid member 300 is not required, and the notch 7a is removed. Can be closed.

  In step s5, as shown in FIG. 11, the end portions of the yarns 12 and 12a held by the holding portion 13 that protrude downward from the holding portion 13 are sucked by the suction portion 19, and at the same time, the yarn presser 23 Thus, the currently used thread 12b and the waiting thread 12 are pressed.

  In step s6, as shown in FIGS. 6 (1) and (2), the movable portion of the yarn clamp 31 is displaced to close the entrance of the yarn splicing hole 7b of the head 7, and simultaneously fitted into the yarn splicing hole 7b. The selected thread 12a and the used thread 12b are sandwiched between the fixed part 31a and the movable part 31b, and the selected thread 12a and the used thread 12b are held near the exit of the yarn splicing hole 7b by the cutter 30. Disconnect.

  Next, in step s7, compressed air is supplied to the yarn joining hole 7b to start the yarn joining. The compressed air injected from the gas injection holes forms an airflow in the direction from the inlet to the outlet, and the yarns 12a and 12b are untwisted in the airflow and then entangled again to perform piecing. In step s8, the holding of the yarn 12 by the holding unit 13 is released, and the end of the selected yarn 12a is released from the holding unit 13 and sucked by the suction unit 19 as yarn waste. At this time, the thread 12 in standby, including the thread 12 b in use, is pressed by the thread presser 23.

  In step s9, the supply of compressed air to the yarn joining hole is stopped, and the yarn joining is finished. In step s10, the holding unit 13 holds the vicinity of the end of the yarn 12 in the standby state. The yarn 12b in use is held by the holding unit 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 yarn holding by the yarn clamp 31 is released by the second drive unit, the entrance of the yarn splicing hole 7b is opened, and the cutting edge of the cutter 30 is opened.

  In the next step s12, the suction portion and the yarn presser solenoid valves are controlled to stop the suction of the yarn 12 by the suction portion 19, and the press of the yarn 12 by the yarn presser 23 is stopped. In step s13, the yarn driving lever 14 is returned to the origin position by the first drive unit, and the yarn splicing operation is completed.

  FIG. 12 shows a configuration in which the splicer device 1 is mounted on the flat knitting machine 60 and knitting is performed using the knitting yarn 61 as the yarn 12. 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 Laid-Open No. 2006-118059. 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 64 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. The timing at which the splicer device 1 switches the knitting yarn 61 is adjusted to match the position at which the knitting yarn 61 is switched on the knitted fabric.

  Each of the above-described embodiments is an example of the present invention, and the configuration can be changed within the scope of the invention. For example, in each of the embodiments described above, compressed air is used as the compressed fluid. However, the type of fluid is not limited to air, and an inert gas such as nitrogen gas is used instead of air for the yarn to be spliced. It can also be used. Further, pressurized water may be used as the compressed fluid.

It is a perspective view which sees the splicer apparatus 1 in which the thread | yarn guide lever 14 exists in an origin position from the front side upper direction. It is a perspective view which shows the splicer apparatus 1 in which the thread | yarn guide lever 14 exists in an action position seeing from upper direction of a front side. It is a perspective view which takes out and shows the head 7 and the cover member 300. FIG. It is a top view which shows the head 7 and cover member 300a, 300b, 300c. 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. FIG. 6A is a side view schematically showing the configuration in the vicinity of the head 7 in a state where the yarns 12a and 12b to be spliced are fitted in the yarn splicing holes 7b of the head 7. FIG. These are the side views which simplify and show the structure of the head 7 vicinity in the state which is making the thread | yarn clamp 31 and the cutter 30 act. It is a flowchart which shows the procedure of a yarn splicing operation | movement. 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. 3 is a front view schematically showing a splicer device in a state where a selected yarn 12a is hooked by a hook portion 14a at a free end of a yarn guide lever 14. FIG. 3 is a front view schematically showing the splicer device 1 in a state in which the yarn 12a selected by the hook portion 14a at the free end of the yarn guide lever 14 is guided to the inlet of the head 7. 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.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Splicer apparatus 2 Base 3 Thread selection part 4 1st drive part 5 2nd drive part 7 Splice head 10, 10a, 10b Thread selection lever 12, 12a, 12b, 12c Thread 13 Holding part 14 Thread guide lever 20 Thread guide 23 Thread Holding

Claims (4)

A splicer device capable of splicing to at least one other thread while using at least one of a plurality of threads,
(A) a holding portion that holds an end portion of a yarn that is not in use among the plurality of yarns;
(B) a yarn selection unit that selects a yarn to be spliced from the yarns held by the holding unit;
(C) A yarn splicing hole penetrating from the inlet on the side opposite to the holding portion to the outlet on the holding portion side, and a notch for opening the yarn splicing hole over its entire length in the axial direction are formed and selected by the yarn selecting portion A splice head that is spliced by the flow of compressed fluid in a state where the thread to be used and the thread in use are inserted through the splicing hole;
(D) An action in which a hook portion that captures the yarn selected by the yarn selection portion and a lid member that closes the notch is provided, and the hook portion is arranged in the vicinity of the entrance of the yarn splicing hole from a predetermined origin position. The selected thread is guided to the splicing hole through the notch by moving the thread selected by the thread selecting section to a position while being captured by the hook section, and the lid A thread guide lever that closes the notch with a member;
(E) a drive unit that drives the thread guide lever to move between the predetermined origin position and the action position;
A splicer device comprising:   In a state where the notch is closed by the lid member, the surface of the lid member facing the yarn splicing hole constitutes a part of the inner peripheral surface that faces the yarn splicing hole and continues in the circumferential direction. The splicer device according to claim 1.   The splicer device according to claim 2, wherein the lid member is replaceable. A yarn guide that is arranged closer to the yarn selection part than the splice head and guides the yarn in use in a direction to escape from the yarn splice hole of the splice head to the notch side;
The yarn guide lever has a protrusion that passes through a tension path of the used yarn extending between the yarn selection portion and the yarn guide when the yarn guide lever moves between the origin position and the operation position. The splicer device according to any one of claims 1 to 3.

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