JP2011037626A - Yarn-splicing device and fiber machine having the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a yarn-splicing device and a fiber machine having the same, which selects a flow rate of fluid by instantly switching to a proper flow rate corresponding to the characteristic of yarn to be spliced. <P>SOLUTION: This fluid type yarn-splicing device for yarn-splicing includes a flow control mechanism 14 for adjusting the flow rate of the fluid. The flow control mechanism 14 includes an orifice member 32 for restricting the opening area of a flow passage of the fluid. The orifice member 32 is constituted so as to select the opening area of the flow passage different in stepwise, and the flow rate of the fluid is selected stepwise by switching selection of the opening area. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a fluid type yarn splicing device that performs yarn splicing, and a textile machine including the same.

  Conventionally, a winder that winds a yarn to form a package, and a spinning machine that winds a fiber bundle to form a package and forms a package are known. A yarn joining device is provided for joining the yarn end on the package side and the yarn end on the yarn feeding side when the yarn is cut by the defect detection device.

  As a yarn joining device, there is known a fluid type yarn joining device that uses a fluid (for example, compressed air) to untwist both yarn ends to be spliced and to connect the untwisted yarn ends. (See Patent Document 1). The yarn joining device described in Patent Document 1 includes an untwisting nozzle for untwisting both yarn ends and a yarn joining nozzle for connecting both yarn ends after untwisting. According to this yarn joining device, Both yarn ends are sucked into the untwisting nozzle, and untwisted by the action of the fluid supplied into the untwisting nozzle to loosen the fibers. Next, the untwisted portions of both yarn ends move into the yarn joining nozzle, and are swung, entangled and connected by the action of the fluid supplied to the yarn joining nozzle.

  By the way, if the yarn characteristics (type, yarn count, yarn color, etc.) are different, the ease of untwisting and connecting the yarn ends will be different. It is necessary to adjust the flow rate to an appropriate flow rate according to the characteristics of the yarn. In order to be able to adjust the flow rate of the fluid according to the characteristics of the yarn, a yarn splicing device having a flow rate adjusting mechanism in the middle of the fluid flow path has been developed. It is a structure which makes a screw protrude in a path | route, and can adjust the flow volume of a fluid steplessly by changing the opening area of a flow path by increasing / decreasing the protrusion amount of a screw.

JP 59-211162 A

  As described above, in order to set the flow rate of the fluid in the yarn splicing device to an appropriate flow rate according to the characteristics of the yarn, each time the yarn to be spliced changes, the setting of the flow rate adjusting mechanism depends on the characteristics of the yarn. It is necessary to change to an appropriate setting. However, although the conventional flow rate adjustment mechanism can change the setting steplessly, since it is set by the amount of rotation of the screw, the protruding height of the screw, etc., every time the setting of the flow rate adjustment mechanism is changed, There is a problem that an error is included in the setting. Further, since the setting is performed from the outside of the fluid flow path, it is not possible to directly confirm how much the fluid flow path is actually open. Therefore, it is difficult for the conventional yarn splicing device to reproduce the setting of the flow rate adjusting mechanism to the optimum setting according to the characteristics of the yarn. Therefore, the flow rate of the fluid is set to an appropriate flow rate according to the characteristics of the yarn. It was difficult to set.

  In addition, since the conventional yarn splicing device requires time for adjusting the screw rotation amount and the protrusion height, it is difficult to immediately switch the setting of the flow rate adjusting mechanism.

  The present invention has been made to solve the above problems, and a yarn splicing device capable of immediately switching and selecting the flow rate of a fluid to an appropriate flow rate according to the characteristics of the yarn to be spliced. It aims at providing the textile machine provided with.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

That is, the first invention is a fluid type yarn splicing device that performs yarn splicing,
A yarn splicing section for performing yarn splicing;
A flow path for supplying a fluid to the yarn joining portion;
A throttle member provided in a part of the flow path;
Have
The throttle member is configured to be able to select an opening area of a different flow path in stages, and by selecting the opening area, the opening area of the flow path is selected in stages. This is a yarn splicing device.

According to a second invention, in the first invention,
The throttle member includes a plurality of throttle holes having different diameters, and the opening area of the flow path is selected stepwise by positioning any of the throttle holes in the flow path.

According to a third invention, in the second invention,
The throttle member is a turret member, and the opening area of the flow path is selected stepwise by rotating the turret member and positioning one of the throttle holes in the flow path.

According to a fourth invention, in the third invention,
Positioning means is provided for positioning the turret member in a state where the flow path and the throttle hole communicate with each other.

According to a fifth invention, in the first invention,
The restricting member is a member that restricts the opening area of the flow path by projecting into the flow path, and the restricting member is configured to be able to select different projecting amounts in stages, and the projecting amount By switching, the opening area of the flow path is selected stepwise.

A sixth invention is the first to fifth inventions,
The flow rate adjusting mechanism includes a drive source that switches the selection of the throttle member, and the drive source operates according to the characteristics of the yarn to be spliced, and the flow according to the characteristics of the yarn to be spliced. Select the open area of the road.

  The seventh invention is a textile machine provided with the yarn splicing device of any one of the first to sixth inventions.

  As effects of the present invention, the following effects can be obtained.

  According to the first invention, by switching the selection of the opening area, the opening area of the flow path can be selected in stages, so that the reproducibility of the adjustment of the flow rate adjustment mechanism is high, and the fluid of the yarn splicing device The flow rate can be immediately switched to an appropriate flow rate according to the characteristics of the yarn to be spliced.

  According to the second aspect of the present invention, by restricting the opening area of the flow path in stages by positioning any of the plurality of throttle holes in the flow path, the restriction of the flow path can be performed symmetrically in the vertical and horizontal directions. It is possible to immediately switch the flow rate of the fluid while suppressing the disturbance of the fluid.

  According to the third aspect, since the turret member is rotated and the opening area of the flow path is selected stepwise, the flow rate of the fluid can be switched immediately without using a special tool.

  According to the fourth invention, since the turret member is positioned in a state where the flow path and the throttle hole communicate with each other, the flow rate of the fluid can be accurately switched.

  According to the fifth aspect, the flow amount of the fluid can be switched immediately without using a special tool because the opening area of the flow path is selected step by step by switching the protruding amount of the throttle member. .

  According to the sixth aspect of the present invention, the driving source is operated according to the characteristic of the yarn to be spliced, and the opening area of the flow path is selected according to the characteristic of the yarn to be spliced. The flow rate of the fluid can be automatically switched.

  According to the seventh invention, the flow rate of the fluid in the yarn splicing device can be immediately switched to an appropriate flow rate according to the characteristics of the yarn to be spliced. It can be a textile machine that performs splicing.

Sectional drawing of the winder 51 as a textile machine to which the yarn splicing device 11 which concerns on the 1st Embodiment of this invention is applied. The perspective view of the yarn splicing device 11. FIG. FIG. 3 is a simplified diagram of the structure of the yarn splicing device 11. The perspective view of the state before the assembly of the flow volume adjustment mechanism 14. FIG. The perspective view of the state which attached the flow volume adjustment mechanism 14 to the flame | frame 12, and covered with the cover 16. FIG. The perspective view of the state before the assembly of the flow volume adjustment mechanism 14 in the 2nd Embodiment of this invention. The perspective view of the state which assembled the flow volume adjustment mechanism. The perspective view of the state before the assembly of the flow volume adjustment mechanism 14 in the 3rd Embodiment of this invention. The perspective view of the state which assembled the flow volume adjustment mechanism.

  FIG. 1 shows a cross-sectional view of a winder 51 as a textile machine to which the yarn splicing device 11 according to the first embodiment of the present invention is applied. The winder 51 has a plurality of yarn winding machines 52 arranged in parallel along one direction, and the yarn winding machine 52 in the winder 51 winds the yarn Y of the yarn feeding bobbin B to form a package P. In the following description, the case where the yarn joining device 11 according to the present invention is applied to the winder 51 will be described. It can also be applied to the spinning machine to be formed.

  As shown in FIG. 1, a main frame 53 is arranged along the direction in which the yarn winding machines 52 are arranged side by side. The main frame 53 supports a unit frame 54 that supports devices constituting the yarn winding machine 52, and a rail 56 that causes the doffing device 55 to travel along the line of the yarn winding machine 52. The winder 51 can form the same number of packages P as the number of yarn winding machines 52 in parallel, and the yarn winding machine 52 performs the doffing operation when the package P wound up by itself is full. Is sent to the doffing device 55, and the doffing device 55 moves to the position of the yarn winding machine 52 that has become full and performs the doffing operation of the package P. A package receiver 57 for receiving the full package P is provided in each yarn winding machine 52. Each yarn winding machine 52 is provided with a bobbin stocker 59 for storing a replenishment bobbin 58. When the package P becomes full in the yarn winding machine 52 and the full package P is doffed by the doffing device 55, a new bobbin 58 is supplied from the bobbin stocker 59. In FIG. 1, for convenience of illustration, each component is illustrated in a simplified manner, and parallel oblique lines are omitted from the cross section of each component.

  As shown in FIG. 1, the yarn winding machine 52 has a yarn feeding bobbin B, a tension device 61, a yarn joining device 11, a yarn defect detecting device 62, a traverse drum 63, and a cradle 64 in this order from the bottom to the top. In this arrangement, the yarn from the yarn feeding bobbin B is wound up to form a cone-shaped package P on the bobbin 58. The tension device 61 applies an appropriate tension to the yarn Y unwound by the yarn supplying bobbin B, and the yarn defect detecting device 62 cuts the traveling yarn Y when the defect of the yarn Y is detected. The yarn joining device 11 is a device for joining the yarn end YP on the package P side and the yarn end YB on the yarn feeding bobbin B side when the yarn breakage or yarn defect detection device 62 cuts the yarn. A guide groove for traversing the yarn Y is formed on the surface. The guide groove rotates while contacting the bobbin 58 or the package P held by the cradle 64, and the bobbin 58 or the package P while traversing the yarn Y. To wind the yarn Y.

  The yarn winding machine 52 is provided with a suction mouth 65 and a suction pipe 45 (not shown) for guiding the yarn ends YP and YB to the yarn joining device 11 at the time of yarn joining. The suction mouth 65 has a flat opening at the tip, and the base end is supported so as to be rotatable about an axis parallel to the axis of the traverse drum 63, and is connected to a suction pump (not shown). . Then, when the yarn feeding bobbin B is replaced or when the yarn breakage or yarn defect detection device 62 cuts the yarn, the suction mouth 65 pivots upward to bring the opening close to the surface of the package P, and the yarn on the package P side The end YP is captured by the air flow sucked, and the yarn end YP is turned downward with the yarn end YP sucked, whereby the yarn end YP on the package P side is pulled out of the package P and passed to the yarn joining device 11.

  On the other hand, the suction pipe 45 (not shown) captures the yarn end YB on the yarn feeding bobbin B side at the time of yarn joining, and passes this yarn end YB to the yarn joining device 11. Then, the yarn splicing device 11 splices the yarn end YP on the package P side captured by the suction mouth 65 and the yarn end YB on the yarn feeding bobbin B side captured by the suction pipe 45, so that the yarn Y Is ready for rewinding. When the yarn end YP on the package P side is pulled out by the suction mouse 65, the package P is rotated reversely by rotating the traverse drum 63 in the direction opposite to the winding of the yarn Y, and the yarn end YP. It is easy to pull out.

  Next, the yarn joining device 11 according to the first embodiment of the present invention will be described. FIG. 2 is a perspective view of the yarn joining device 11, and FIG. 3 is a simplified diagram of the structure of the yarn joining device 11. The yarn splicing device 11 uncompresses the yarn end YP on the package P side to be spliced and the yarn end YB on the yarn feeding bobbin B side, and connects the untwisted yarn ends YP and YB with compressed air (air). ).

  As shown in FIG. 2, the yarn joining device 11 includes a frame 12, a yarn joining unit 13, and a flow rate adjusting mechanism 14. The frame 12 is attached to the unit frame 54 of the winder 51, and the yarn joining portion 13 and the flow rate adjusting mechanism 14 are attached to the frame 12. In order to let the frame 12 pass the untwisting air passage 41 for passing the untwisting air, the yarn joining air passage 42 for passing the yarn joining air, and the cleaning air for removing yarn waste and the like. The cleaning air flow path 43 is provided (see FIG. 3), and an air inlet 44 for connecting an air supply means (not shown) is provided in these flow paths. The frame 12 is provided with a mounting portion 15 for mounting the flow rate adjusting mechanism 14, and the flow rate adjusting mechanism 14 is connected to each flow path in the mounting portion 15 or without the flow rate adjusting mechanism 14. An untwisting air joint 411, a yarn splicing air joint 421, and a cleaning air joint 431 for piping are provided. The flow rate adjusting mechanism 14 connected to each flow path constitutes a part of the flow path for passing each air. In the present embodiment, since the flow rate adjusting mechanism 14 is connected only to the untwisting air passage 41, the yarn joining air passage 42 is provided between the yarn joining air joint 421 and the cleaning air joint 431, respectively. The pipe 45 having the same diameter as the cleaning air flow path 43 is connected (see FIG. 3).

  In the yarn joining section 13, the yarn end YP on the package P side and the yarn end YB on the yarn feeding bobbin B side are guided by a suction mouth 65 and a suction pipe 45 (not shown) of the yarn winding machine 52, and both yarn ends YP , YB untwisting and connection. As shown in FIGS. 2 and 3, the first untwisting nozzle 71 sucks the yarn end YB on the yarn feeding bobbin B side and performs untwisting, and the first untwisting nozzle 71a is exposed to the first unwinding nozzle 71a. A twisted pipe 71b and a first untwisting air outlet 71c for injecting untwisting air in the first untwisting pipe 71b are provided. The first untwisting air outlet 71c is connected to the untwisting air flow path 41 and is disposed in the vicinity of the first suction port 71a of the first untwisting pipe 71b. It is tilted toward the center. By injecting untwisting air from the first untwisting air outlet 71c, a spiral flow is generated in the first untwisting pipe 71b, and the yarn end YB on the yarn feeding bobbin B side is first from the first suction port 71a. It is sucked into the untwisting pipe 71b, and the fiber at the yarn end YB is untwisted and loosened.

  The second untwisting nozzle 72 sucks the yarn end YP on the winding package P side and performs untwisting. The second untwisting pipe 72b with the second suction port 72a exposed, and the second untwisting pipe And a second untwisting air outlet 72c for injecting untwisting air within 72b. The second untwisting air outlet 72c is connected to the untwisting air flow path 41 and is disposed in the vicinity of the second suction port 72a of the second untwisting pipe 72b. It is tilted toward the center. By injecting untwisting air from the second untwisting air outlet 72c, a spiral flow is generated in the second untwisting pipe 72b, and the yarn end YP on the winding package P side is second from the second suction port 72a. The fiber is sucked into the untwisting pipe 72b, and the fiber at the yarn end YP is untwisted and loosened.

  The yarn joining nozzle 73 entangles and connects the untwisted portion of the yarn end YP on the package P side and the untwisted portion of the yarn end YB on the yarn feeding bobbin B side that has been untwisted and loosened. It is arranged between the untwisting nozzle 71 and the second untwisting nozzle 72. The yarn joining nozzle 73 includes an accommodation portion 73a for accommodating the yarn end YP on the package P side and the yarn end YB on the yarn feeding bobbin B side, and the yarn end YP on the package P side and the yarn end YB on the yarn feeding bobbin B side. Is formed in the tangential direction of the side wall of the accommodating portion 73a, and a yarn splicing air outlet 73c for injecting yarn splicing air is formed. The yarn joining air outlet 73c is connected to the yarn joining air flow path. A swirling flow is generated in the accommodating portion 73a by the yarn splicing air injected from the yarn splicing air outlet 73c, and the untwisted portion of the yarn end YP on the package P side that has been untwisted and loosened, and the yarn feeding bobbin B side And the untwisted portion of the yarn end YB are intertwined and connected.

  The first yarn shifting lever 74a and the second yarn shifting lever 74b are arranged so that the yarn end YP on the package P side led to the front of the yarn joining nozzle 73 and the yarn end YB on the yarn feeding bobbin B side are guided before the untwisting. After untwisting to the yarn joining nozzle 73, the untwisted portions of both yarn ends YP and YB are positioned in the accommodating portion 73a of the yarn joining nozzle 73 in preparation for the connection of both yarn ends YP and YB. The positions of both yarn ends YP and YB are adjusted. The first yarn gathering lever 74a and the second yarn gathering lever 74b are configured to turn from a standby position on the side of the yarn joining nozzle 73 toward the yarn joining nozzle 73 by a driving device (not shown). The shift lever 74a and the second yarn shift lever 74b move the yarn end YP on the package P side and the yarn end YB on the yarn supply bobbin B side, which are led to the front of the yarn joining nozzle 73, to the yarn joining nozzle 73, respectively. In addition, the first yarn shifting lever 74a and the second yarn shifting lever 74b are further turned to an appropriate position after the yarn ends YP and YB are untwisted, so that the untwisted portions of the yarn ends YP and YB are moved. The positions of both yarn ends YP and YB are pulled out from the first untwisting nozzle 71 and the second untwisting nozzle 72 and the untwisting portions of both yarn ends YP and YB are located in the accommodating portion 73a of the yarn joining nozzle 73. Adjust.

  The first yarn end cutter 75a cuts the yarn end YB on the yarn feeding bobbin B side brought to the yarn joining nozzle by the first yarn moving lever 74a before untwisting the yarn end YB on the yarn feeding bobbin B side. The second yarn end cutter 75b has an appropriate length, and the second yarn end cutter 75b is wound around the yarn joining nozzle by the second yarn moving lever 74b before the yarn end YP on the winding package P side is untwisted. The yarn end YP on the P side is cut to an appropriate length. The first clamp plate 76a clamps and fixes the yarn end YP on the winding package P side, and the second clamp plate 76b clamps and fixes the yarn end YB on the yarn feeding bobbin B side. Is.

  The yarn presser lever 77 has both the yarn end YP, the untwisted portion of both yarn ends YP, YB located in the accommodating portion 73a of the yarn joining nozzle 73 by the first yarn moving lever 74a and the second yarn moving lever 74b. After adjusting the position of YB, the position of the untwisted part of both yarn ends YP and YB is fixed. The yarn holding lever 77 includes a first fork 77a and a second fork 77b, and is configured to turn from a standby position on the side of the yarn joining nozzle 73 toward the yarn joining nozzle 73 by a driving device (not shown). Yes. The yarn holding lever 77 is rotated in the direction of the yarn joining nozzle 73 after the positions of the two yarn ends YP and YB are adjusted by the first yarn moving lever 74a and the second yarn moving lever 74b, and the first fork 77a and the yarn are moved. The yarn ends YP and YB on the winding package P side are fixed with the splicing nozzle 73, and the yarn end YB on the yarn supplying bobbin B side is fixed between the second fork 77b and the yarn splicing nozzle 73. After the positions of both yarn ends YP and YB are fixed, yarn joining air is jetted by the yarn joining nozzle 73, and the untwisted portions of both yarn ends YP and YB are entangled and connected.

  Next, the flow rate adjusting mechanism 14 will be described. FIG. 4 is a perspective view of a state before the assembly of the flow rate adjusting mechanism 14, and FIG. 5 is a perspective view of the state in which the flow rate adjusting mechanism 14 is attached to the frame 12 and covered with the cover 16. The flow rate adjusting mechanism 14 applied to the yarn splicing device 11 according to the present embodiment is supplied from the air supply means (not shown) to the first untwisting nozzle 71 and the second untwisting nozzle 72 of the yarn splicing unit 13. The flow rate of the untwisting air is selected stepwise.

  As shown in FIG. 4, the flow rate adjusting mechanism 14 includes a main body 21, a pressing member 22, and a turret member 31 as a throttle member. The main body 21 and the pressing member 22 are provided with an air flow path 23 that is connected to the untwisting air flow path 41 and allows the untwisting air to pass therethrough. The turret member 31 has a plurality of different opening areas. A throttle hole 33 is provided. By supporting the main body 21 and the pressing member 22 so as to sandwich the turret member 31, and rotating the turret member 31 to position one of the throttle holes 33 of the turret member 31 in the middle of the air flow path 23, The opening area of the path 23 is selected in stages, and the flow rate of the untwisting air is switched. Hereinafter, the structure of the flow rate adjusting mechanism 14 will be described in detail.

  First, the turret member 31 has a disk shape, and a support shaft 34 that serves as a rotation shaft of the turret member 31 is provided on both sides of the center. A plurality of throttle holes 33 are formed on an imaginary circumference on the turret member 31 with the support shaft 34 as the center, and each throttle hole 33 is located in the middle of the air flow path 23, so that the air flow path The opening area of 23 is restricted, and the flow rate of the air for untwisting is restricted. The aperture holes 33 have different opening areas so that different opening areas can be selected in stages. The opening area of each throttle hole 33 is set so that the flow rate of the air for untwisting becomes a flow rate suitable for untwisting of each yarn Y according to the characteristics of various yarns Y to be spliced. Yes. By positioning one of the throttle holes 33 in the middle of the air flow path 23, the opening area of the air flow path 23 can be selected stepwise. That is, the flow rate of the untwisting air can be selected step by step by the number of throttle holes 33.

  The main body 21 is provided with a support hole 24 for rotatably supporting the support shaft 34 of the turret member 31, and at a position communicating with the throttle hole 33 in a state where the turret member 31 is supported by the support hole 24. An air flow path 23 is provided. A seal member 25 that ensures airtightness between the air flow path 23 and the throttle hole 33 of the turret member 31 is disposed on the surface facing the turret member 31, and around the opening of the air flow path 23, A seal groove 26 for mounting the seal member 25 is formed. Further, on the surface facing the turret member 31, a convex portion 211 is provided for securing the space between the turret member 31 and making the turret member 31 rotatable. A fixed hole 212 is formed in the convex portion 211. A stay 213 for attaching the flow rate adjusting mechanism 14 to the frame 12 by the fixing means 223 is provided on the upper portion of the main body 21. An air channel joint 231 (not shown) for connecting to the untwisting air joint 411 of the frame 12 is provided at the opening of the air channel 23 on the surface opposite to the surface facing the turret member 31. ing.

  As with the main body 21, the pressing member 22 is provided with a support hole 24 (not shown) for rotatably supporting the support shaft 34 of the turret member 31, and the turret member 31 is supported by the support hole 24. The air flow path 23 is provided at a position communicating with the throttle hole 33 in the state. A seal member 25 that ensures airtightness between the air flow path 23 and the throttle hole 33 of the turret member 31 is disposed on the surface facing the turret member 31, and around the opening of the air flow path 23, A seal groove 26 (not shown) for mounting the seal member 25 is formed. A through hole 221 is formed at a position communicating with the fixing hole 212 formed in the convex portion 211 of the main body 21 so that the fixing means 222 can fix the through hole 221. An air flow path joint 231 for connecting to the untwisting air joint 411 of the frame 12 is provided at the opening of the air flow path 23 on the surface opposite to the surface facing the turret member 31.

  The main body 21, the pressing member 22, and the turret member 31 are assembled by attaching the sealing members 25 to the sealing grooves 26 of the main body 21 and the pressing member 22, and supporting the support shaft 34 of the turret member 31 with the main body 21 and the pressing member 22. The turret member 31 is sandwiched between the main body 21 and the pressing member 22 so as to be supported by the hole 24, and the main body 21 and the pressing member 22 are fixed by the fixing means 222. The turret member 31 is rotatable with respect to the main body 21 and the pressing member 22, and when the turret member 31 is rotated, the throttle holes 33 communicating with the air flow path 23 of the main body 21 and the pressing member 22 are switched in order. To. In addition, an indication indicating that the air flow path 23 and the throttle hole 33 are in communication with each other, or positioning means for positioning the turret member 31 in a state in which the air flow path 23 and the throttle hole 33 are in communication are provided. May be. As the positioning means, for example, a convex part that can be projected and retracted is provided in a part of the main body 21, and the turret member 31 has a plurality of concave parts that engage with the convex part in a state where the air flow path 23 and the throttle hole 33 are in communication. This can be realized by providing each throttle hole 33. The air flow rate can be accurately switched by the positioning means. In addition, by communicating with the air flow path 23 and the center of the throttle hole 33 being aligned, the air flow path 23 can be squeezed vertically and horizontally, and untwisting while suppressing disturbance of the untwisting air. The air flow rate can be switched.

  As shown in FIG. 2, the flow rate adjusting mechanism 14 configured as described above connects the air flow path joint 231 of the flow rate adjusting mechanism 14 to the untwisting air joint 411 of the frame 12, and the stay 213 and the fixing means. It is attached in the attachment part 15 of the frame 12 using the H.223. And the cover 16 which covers the attaching part 15 of the flame | frame 12 is mounted | worn as shown in FIG. The cover 16 is formed with a slit 161 so that a part of the turret member 31 of the flow rate adjusting mechanism 14 is exposed. With the cover 16 attached, the turret member 31 is rotated to switch the flow rate of the untwisting air. I am doing so.

  The yarn splicing device 11 according to the first embodiment described above has the following effects.

  By rotating the turret member 31 of the flow rate adjusting mechanism 14 and positioning any of the throttle holes 33 in the middle of the air flow path 23, the opening area of the air flow path 23 can be selected stepwise. Since the flow rate of the untwisting air can be selected stepwise by selecting the opening area stepwise, the reproducibility of adjustment of the flow rate adjusting mechanism 14 is high, and the flow rate of the untwisting air is reduced It is possible to immediately switch to an appropriate flow rate according to the characteristics of the yarn Y to be spliced.

  Moreover, since the turret member 31 is rotated and the opening area of the air flow path 23 is selected stepwise, the flow rate of the untwisting air can be switched immediately without using a special tool.

  Next, a yarn splicing device 11 according to a second embodiment of the present invention will be described with reference to the drawings. FIG. 6 is a perspective view of a state before the assembly of the flow rate adjusting mechanism 14 applied to the yarn joining device 11 according to the second embodiment of the present invention, and FIG. 7 is a state of the assembled flow rate adjusting mechanism 14. A perspective view is shown. As shown in FIGS. 6 and 7, the flow rate adjusting mechanism 14 of the yarn splicing device 11 according to the present embodiment does not rotate the throttle member 32 like the turret member 31 but makes it advance and retract linearly. This is greatly different from the flow rate adjusting mechanism 14 according to the first embodiment.

  As shown in FIGS. 6 and 7, the flow rate adjusting mechanism 14 includes a main body 21, a pressing member 22, and a throttle member 32. The main body 21 and the pressing member 22 are provided with an air flow path 23 that is connected to the untwisting air flow path 41 and allows the untwisting air to pass therethrough. A throttle hole 33 is provided. By supporting the main body 21 and the pressing member 22 so as to sandwich the throttle member 32, the throttle member 32 is linearly advanced and retracted, and any one of the throttle holes 33 of the throttle member 32 is positioned in the middle of the air flow path 23. The opening area of the air flow path 23 is selected in stages, and the flow rate of the untwisting air is switched. Hereinafter, the structure of the flow rate adjusting mechanism 14 will be described in detail.

  First, the throttle member 32 has a flat plate shape, and a plurality of throttle holes 33 are formed on a virtual straight line. As with the turret member 31 of the first embodiment, each throttle hole 33 is located in the middle of the air flow path 23 so as to restrict the opening area of the air flow path 23 and reduce the flow rate of untwisting air. It is. The aperture holes 33 have different opening areas so that different opening areas can be selected in stages. The opening area of each throttle hole 33 is set so that the flow rate of the air for untwisting becomes a flow rate suitable for untwisting of each yarn Y according to the characteristics of various yarns Y to be spliced. Yes. By positioning one of the throttle holes 33 in the middle of the air flow path 23, the opening area of the air flow path 23 can be selected stepwise. That is, the flow rate of the untwisting air can be selected step by step by the number of throttle holes 33.

  On the surface of the main body 21 that faces the diaphragm member 32, a convex portion 211 that secures a space between the pressing member 22 and guides the diaphragm member 32 so that the diaphragm member 32 can move forward and backward is provided vertically. An air flow path 23 is provided at a position communicating with the throttle hole 33 of the throttle member 32 while being supported by the upper and lower convex portions 211. In addition, a seal member 25 that secures airtightness between the air flow path 23 and the throttle hole 33 of the throttle member 32 is disposed on the surface facing the throttle member 32, and around the opening of the air flow path 23. A seal groove 26 for mounting the seal member 25 is formed. An air channel joint 231 (not shown) for connecting to the untwisting air joint 411 of the frame 12 is provided at the opening of the air channel 23 on the surface opposite to the surface facing the throttle member 32. ing. A fixed hole 212 is formed in the convex portion 211, and a stay 213 for attaching the flow rate adjusting mechanism 14 to the frame 12 by the fixing means 223 is provided in the upper portion of the main body 21.

  The pressing member 22 is provided with an air flow path 23 at a position communicating with the throttle hole 33 of the throttle member 32, and the air channel 23 and the throttle hole of the throttle member 32 are provided on the surface facing the throttle member 32. A sealing member 25 that secures airtightness with the sealing member 33 is disposed, and a sealing groove 26 (not shown) for mounting the sealing member 25 is formed around the opening of the air flow path 23. Yes. A through hole 221 is formed at a position communicating with the fixing hole 212 formed in the convex portion 211 of the main body 21 so that the fixing means 222 can fix the through hole 221. An air flow path joint 231 for connecting to the untwisting air joint 411 of the frame 12 is provided at the opening of the air flow path 23 on the surface opposite to the surface facing the throttle member 32.

  The assembly of the main body 21, the pressing member 22, and the diaphragm is performed by mounting the sealing member 25 in the sealing groove 26 of the main body 21 and the pressing member 22, and supporting the diaphragm member 32 between the upper and lower convex portions 211 of the main body 21, After the diaphragm member 32 is sandwiched between the main body 21 and the pressing member 22, the main body 21 and the pressing member 22 are fixed by the fixing means 222. The throttle member 32 is movable forward and backward with respect to the main body 21 and the pressing member 22, and when the throttle member 32 is advanced and retracted, the throttle hole 33 communicating with the air flow path 23 of the main body 21 and the pressing member 22 is switched in order. . In addition, an indication indicating that the air flow path 23 and the throttle hole 33 are in communication with each other, or positioning means for positioning the throttle member 32 in a state in which the air flow path 23 and the throttle hole 33 are in communication are provided. May be. The air flow rate can be accurately switched by the positioning means. In addition, by communicating with the air flow path 23 and the center of the throttle hole 33 being aligned, the air flow path 23 can be squeezed vertically and horizontally, and untwisting while suppressing disturbance of the untwisting air. The air flow rate can be switched.

  The flow rate adjusting mechanism 14 configured as described above connects the air flow path joint 231 of the flow rate adjusting mechanism 14 to the untwisting air joint 411 of the frame 12, and uses the stay 213 and the fixing means 223 to fix the frame 12. It attaches in the attaching part 15 (refer FIG. 2).

  The yarn splicing device 11 according to the second embodiment described above has the following effects.

  The opening area of the air flow path 23 can be selected stepwise by linearly moving the throttle member 32 of the flow rate adjusting mechanism 14 so that one of the throttle holes 33 is positioned in the middle of the air flow path 23. it can. Since the flow rate of the untwisting air can be selected stepwise by selecting the opening area stepwise, the reproducibility of adjustment of the flow rate adjusting mechanism 14 is high, and the flow rate of the untwisting air is reduced It is possible to immediately switch to an appropriate flow rate according to the characteristics of the yarn Y to be spliced.

  Further, since the throttle member 32 is moved back and forth linearly and the opening area of the air flow path 23 is selected stepwise, the flow rate of the untwisting air can be switched immediately without using a special tool. Can do.

  Next, a yarn splicing device 11 according to a third embodiment of the present invention will be described with reference to the drawings. FIG. 8 is a perspective view of a state before the assembly of the flow rate adjusting mechanism 14 applied to the yarn joining device 11 according to the third embodiment of the present invention, and FIG. 9 is a state of the assembled flow rate adjusting mechanism 14. A perspective view is shown. As shown in FIGS. 8 and 9, the yarn splicing device 11 according to the present embodiment is such that the throttle member 32 projects into the air flow path 23, and is changed by switching the projection amount of the throttle member 32. The point that the flow rate of the twisting air is switched is greatly different from the flow rate adjusting mechanism 14 in the first and second embodiments.

  As shown in FIGS. 8 and 9, the flow rate adjusting mechanism 14 includes a main body 21 and a throttle member 32. The main body 21 is provided with an air passage 23 connected to the untwisting air passage 41 and allowing the untwisting air to pass therethrough. The throttle member 32 projects into the air flow path 23, thereby narrowing the opening area of the air flow path 23. The throttle member 32 is configured to be able to select different projection amounts in stages. By switching the protrusion amount, the opening area of the air flow path 23 is selected in stages, and the flow rate of the untwisting air is switched. Hereinafter, the structure of the flow rate adjusting mechanism 14 will be described in detail.

  First, the main body 21 is provided with an air flow path 23 for allowing untwisting air to pass therethrough, and an insertion hole 214 having a circular cross section is provided in a direction intersecting the air flow path 23. The insertion hole 214 is a hole for moving the insertion portion 35 of the throttle member 32 forward and backward in the air flow path 23. On the side of the insertion hole 214, a positioning convex portion 215 for determining the position of the throttle member 32 in the forward / backward direction is provided. Air flow passage joints 231 for connecting to the untwisting air joint 411 of the frame 12 are provided at openings at both ends of the air flow passage 23, and the flow rate adjusting mechanism 14 is fixed to the fixing means 223 at the upper part of the main body 21. A stay 213 for attaching to the frame 12 is provided.

  The aperture member 32 includes an insertion portion 35 and an operation portion 36. The insertion portion 35 is a member having a circular cross section that can be inserted into the insertion hole 214 of the main body 21, and projects into the air flow path 23 of the main body 21, thereby narrowing the opening area of the air flow path 23. . A seal groove (not shown) is formed in the vicinity of the distal end of the insertion portion 35, and a seal member 37 is provided to ensure the airtightness of the insertion hole 214 and the insertion portion 35.

  The operation unit 36 changes the protruding amount of the insertion unit 35 and positions the insertion unit 35. The operation portion 36 is a disk-shaped member fixed to the end portion of the insertion portion 35, and a plurality of positioning concave portions 361 are formed in the circumferential direction at positions facing the positioning convex portions 215 of the main body 21. The positioning recess 361 is engaged with the positioning protrusion 215 to determine the position of the insertion portion 35 in the forward / backward direction, that is, the amount of protrusion into the air flow path 23. Since the depth of each positioning recess 361 determines the amount of protrusion of the insertion portion 35 and determines the opening area of the air flow path 23, the depth of the positioning recess 361 depends on various yarns to be spliced. Depending on the characteristics of Y, the flow rate of the untwisting air is set to be a flow rate suitable for untwisting of each yarn Y. By fitting any of the positioning recesses 361 of the operation unit 36 to the positioning projections 215 of the main body 21, the projection amount of the projections to the air flow path 23 can be selected in stages, and the opening area of the air flow path 23 can be selected. Can be selected step by step. That is, the flow rate of the untwisting air can be selected stepwise by the number of positioning recesses 361.

  In assembling the main body 21 and the throttle member 32, the insertion portion 35 is inserted into the insertion hole 214 of the main body 21 in a state where the seal member 37 is mounted in the sealing groove of the insertion portion 35. When the diaphragm member 32 is movable forward and backward with respect to the main body 21 and the positioning concave portion 361 is fitted to the positioning convex portion 215, the protruding amount of the insertion portion 35 is determined. When switching the flow rate of the untwisting air, the throttle member 32 is pulled out a little to release the fitting between the positioning convex portion 215 and the positioning concave portion 361, and the throttle member 32 is moved again with the operation portion 36 rotated. The flow rate of the untwisting air can be switched by pushing and fitting the positioning convex portion 215 to the other positioning concave portion 361.

  An urging means for urging the diaphragm member 32 toward the main body 21 may be provided so as to maintain a state where the positioning concave portion 361 and the positioning convex portion 215 are fitted. Further, the operation unit 36 and the insertion unit 35 may be freely rotatable so that the insertion unit 35 does not rotate when the operation unit 36 is rotated when the flow rate of the untwisting air is switched. In this case, since the insertion part 35 only needs to be able to advance and retreat with respect to the insertion hole, the cross-sectional shapes of the insertion part 35 and the insertion hole may not be circular.

  The flow rate adjusting mechanism 14 configured as described above connects the air flow path joint 231 of the flow rate adjusting mechanism 14 to the untwisting air joint 411 of the frame 12, and uses the stay 213 and the fixing means 223 to fix the frame 12. It attaches in the attaching part 15 (refer FIG. 2).

  The yarn splicing device 11 according to the third embodiment described above has the following effects.

  Since the opening area of the air flow path 23 is selected stepwise by moving the throttle member 32 of the flow rate adjusting mechanism 14 back and forth and switching the protruding amount of the throttle member 32, the flow rate of the fluid can be reduced without using a special tool. Can be switched immediately.

  Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made. For example, in the yarn splicing device 11 according to the present embodiment, the flow rate adjusting mechanism 14 is used for adjusting the flow rate of the untwisting air, but it may be used for adjusting the flow rate of the yarn splicing air or cleaning air. Good. In that case, according to the characteristics of the various yarns Y to be spliced, a flow rate adjusting mechanism so that the flow rate of the yarn splicing air and the cleaning air becomes a flow rate suitable for untwisting and cleaning each yarn Y. 14 is set.

  Further, although only the flow rate adjusting mechanism 14 for adjusting the flow rate of the untwisting air is provided, the flow rate adjusting mechanism 14 for adjusting the flow rate of the yarn splicing air or the cleaning air may be provided in parallel. Further, a flow rate adjusting mechanism 14 for adjusting the flow rate of the untwisting air supplied to the first untwisting nozzle 71 and a flow rate adjusting mechanism 14 for adjusting the flow rate of the untwisting air supplied to the second untwisting nozzle 72. May be provided separately.

  Further, the flow rate adjusting mechanism 14 is provided with a drive source for switching the selection of the throttle member 32, and the drive source is operated according to the characteristics of the yarn Y to be spliced, and the characteristics of the yarn Y to be spliced. It is also possible to selectively position the fluid according to the flow rate. In this case, the drive source operates according to the characteristics of the yarn Y to be spliced, and the flow rate of the fluid is selected according to the characteristics of the yarn Y to be spliced. The flow rate can be switched automatically.

  Further, a yarn Y characteristic determining means for determining the characteristic of the yarn Y to be spliced is provided, and the drive source of the flow rate adjusting mechanism 14 is operated in accordance with the determination result of the yarn Y characteristic determining means. The flow rate of the 11 fluids may be automatically switched. For example, the yarn Y characteristic determining means includes a sensor for determining the yarn type, yarn count, yarn color, and the like in the vicinity of the untwisting nozzle, and determines the characteristic of the yarn Y according to the detection value of the sensor. It may be. In this case, even if the characteristics of the yarn Y are changed, the flow rate of the fluid of the yarn joining device 11 can be automatically set to an appropriate state, and a good seam can be formed.

  The technical scope of the present invention described above is not limited to the above embodiment, and is not limited to the shape of the above embodiment. The technical scope of the present invention broadly covers the entire scope of technical ideas that the present invention truly intends, as will be apparent from the matters described in the present specification and drawings.

DESCRIPTION OF SYMBOLS 11 Yarn splicing device 12 Frame 13 Yarn splicing part 14 Flow rate adjusting mechanism 15 Attachment part 16 Cover 161 Slit 21 Main body 211 Protruding part 212 Fixing hole 213 Stay 214 Insertion hole 215 Positioning convex part 22 Pressing member 221 Through hole 222, 223 Fixing means 23 Air channel 231 Air channel joint 24 Support hole 25 Sealing member 26 Sealing groove 31 Turret member 32 Throttle member 33 Throttle hole 34 Support shaft 35 Insertion unit 36 Operation unit 361 Positioning recess 37 Seal member 41 Untwisting air channel 42 Yarn splicing air flow path 43 Cleaning air flow path 411 Untwisting air coupling 421 Yarn splicing air coupling 431 Cleaning air coupling 44 Air inlet 45 Pipe 51 Winder 52 Yarn winding machine 53 Main frame 54 Unit frame 55 Doffing device 56 rail 57 package 58 Bobbin 59 Bobbin stocker 61 Tension device 62 Yarn defect detection device 63 Traverse drum 64 Cradle 65 Suction mouse 71 First untwisting nozzle 71a First suction port 71b First untwisting pipe 71c First untwisting air outlet 72 First 2 Untwisting nozzle 72a Second suction port 72b Second untwisting pipe 72c Second untwisting air outlet 73 Yarn splicing nozzle 73a Receiving portion 73b Guide inclined portion 73c Yarn splicing air outlet 74a First yarn shifting lever 74b Second yarn Shift lever 75a 1st yarn end cutter 75b 2nd yarn end cutter 76a 1st clamp plate 76b 2nd clamp plate 77 Thread holding lever 77a 1st fork 77b 2nd fork Y Thread P Package B Yarn supply bobbin

Claims (7)

A fluid type yarn splicing device for performing yarn splicing,
A yarn splicing section for performing yarn splicing;
A flow path for supplying a fluid to the yarn joining portion;
A throttle member provided in a part of the flow path;
Have
The throttle member is configured to be able to select an opening area of a different flow path in stages, and by selecting the opening area, the opening area of the flow path is selected in stages. Yarn splicing device.   The throttle member includes a plurality of throttle holes having different diameters, and an opening area of the flow path is selected stepwise by positioning any of the throttle holes in the flow path. Item 2. The yarn splicing device according to Item 1.   The throttle member is a turret member, and the opening area of the flow path is selected stepwise by rotating the turret member and positioning one of the throttle holes in the flow path. The yarn splicing device according to claim 2.   4. The yarn splicing device according to claim 3, wherein positioning means for positioning the turret member in a state where the flow path and the throttle hole are in communication with each other is provided.   The restricting member is a member that restricts the opening area of the flow path by projecting into the flow path, and the restricting member is configured to be able to select different projecting amounts in stages, and the projecting amount The yarn splicing device according to claim 1, wherein the opening area of the flow path is selected in a stepwise manner by switching.   The flow rate adjusting mechanism includes a drive source that switches the selection of the throttle member, and the drive source operates according to the characteristics of the yarn to be spliced, and the flow according to the characteristics of the yarn to be spliced. The yarn joining device according to any one of claims 1 to 5, wherein an opening area of the road is selected.   A textile machine comprising the yarn splicing device according to any one of claims 1 to 6.

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