JP2014019989A - Pneumatic clearer device in spinning machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a pneumatic nozzle to be installed at a proper position upon switching normal yarn spinning and compact yarn spinning.SOLUTION: A first positioning means 25 and a second positioning means 26 are formed in a pneumatic nozzle 16. The first positioning means 25 defines a fitting position of the pneumatic nozzle 16 assumed upon spinning a compact yarn. Upon spinning the compact yarn, when the pneumatic nozzle 16 is fitted in a rubber socket 15 to a position of the first positioning means 25, a distal end portion 19 is positioned in a proper position at a forward side of supplying on a collecting mechanism 3. The second positioning means 26 defines a fitting position of the pneumatic nozzle 16 assumed upon spinning a normal yarn. Upon spinning the normal yarn, when the pneumatic nozzle 16 is fitted in the rubber socket 16 to a position of the second positioning means 26, the distal end portion 19 is positioned in a proper position at a forward side of supplying on a draft roller mechanism 2. As a result, upon switching the compact yarn spinning and the normal yarn spinning, the pneumatic nozzle can be installed at a proper position.

Description

  The present invention relates to a pneumatic clearer device for a spinning machine that sucks and removes spun yarn at the time of yarn breakage.

  For example, if a spinning spindle with a broken yarn is left during operation of a spinning machine such as a ring spinning machine, the spun yarn is wound around a draft device or the like, which hinders subsequent splicing operations. In addition, a lot of fluff is generated and accumulated in the vicinity of the draft device, but the fluff scattered by the random movement of the spun yarn that has broken the yarn touches the spun yarn of the other spinning weight. There is a risk of inducing thread breakage. Therefore, the spinning machine is provided with a pneumatic clearer device that sucks and removes the spun yarn at the time of yarn breakage.

  In the pneumatic clearer device, for example, as disclosed in Patent Document 1, a base portion of a pipe constituting a pneumatic nozzle is connected to a pneumatic duct via a rubber socket. A support rod is installed between the roller stands, and a support member is fixed on the support rod. After the pipe is inserted into the rubber socket, the pipe is moved upward to be fitted to the support member, positioned at the normal position, and supported. Further, when the pipe is moved downward, it is detached from the support member and becomes free.

JP-A-8-260259

  In a ring spinning machine, there are a case where it operates with a draft device for spinning ordinary yarn and a case where it operates with a draft device for spinning compact yarn. In the specification of the present application, spinning of ordinary yarn means that the spun yarn spun from a draft device having a draft roller mechanism such as a three-wire type or a four-wire type is disposed downstream of the front roller of the draft device. It refers to a spinning method that is wound up by a winding device provided. Compact yarn spinning is a spinning machine spun by a drafting device having a draft roller mechanism such as a three-wire type or a four-wire type and a converging mechanism for a spinning yarn fed from a front roller of the draft device. The spinning method refers to a spinning method in which the yarn is wound around a winding device provided on the downstream side of the focusing mechanism.

  In the pneumatic clearer device disclosed in Patent Document 1, the same device is generally used during normal yarn spinning and compact yarn spinning. Therefore, the pneumatic clearer device is configured so that the length of inserting the base of the pneumatic nozzle into the rubber socket can be freely changed, and the opening of the pneumatic nozzle is positioned at an appropriate position during normal yarn spinning and compact yarn spinning. It is configured so that it can be installed.

  When switching between normal yarn spinning and compact yarn spinning, the installation work of the pneumatic nozzle is performed manually by the operator. However, in the pneumatic clearer device of Patent Document 1, since the adjustment work for inserting the pneumatic nozzle into the rubber socket is performed depending on the experience and intuition of the operator, the adjustment work of the insertion length of the pneumatic nozzle becomes complicated, and the pneumatic clearer is complicated. There is a problem that the assembly work of the apparatus takes a long time. In addition, the adjustment of the insertion length of the pneumatic nozzle is erroneous, and the installation failure of the pneumatic nozzle is likely to occur. If the insertion length of the pneumatic nozzle is incorrect, the pneumatic nozzle falls off from the support member due to vibration during the operation of the ring spinning machine, and the pneumatic clearer device loses the pneumatic clearer function.

  An object of the present invention is to make it possible to accurately install a pneumatic nozzle when switching between normal yarn spinning and compact yarn spinning.

  According to a first aspect of the present invention, a pneumatic duct extending in the longitudinal direction of the spinning machine is provided, a connecting member is attached to the pneumatic duct, a proximal end portion is fitted to the connecting member, and a distal end portion is opened to the delivery side of the draft device. In a pneumatic clearer device of a spinning machine that includes a pneumatic nozzle and holds the pneumatic nozzle by a support member, one of the pneumatic nozzle and the connecting member has a position where the pneumatic nozzle is fitted to the connecting portion when compact yarn is spun. A first positioning means for defining and a second positioning means for defining a position where the pneumatic nozzle fits into the connecting portion during normal yarn spinning are provided.

  According to claim 1, the pneumatic nozzle can be accurately and easily installed at the time of switching between normal yarn spinning and compact yarn spinning. The pneumatic nozzle is dropped from the support member due to poor installation of the pneumatic nozzle, or the pneumatic nozzle is dropped. It is possible to prevent spun yarn breakage or the like at adjacent spinning weights. Further, the use of the first positioning means and the second positioning means facilitates the installation work of the pneumatic nozzle, and can greatly contribute to the reduction in man-hours for switching between normal yarn spinning and compact yarn spinning.

  According to a second aspect of the present invention, the first positioning means and the second positioning means are provided on an outer periphery of the pneumatic nozzle. According to claim 2, it is easy to form the first positioning means and the second positioning means. In particular, when the pneumatic nozzle is resin-molded, the first positioning means and the second positioning means can be integrally molded.

  According to a third aspect of the present invention, at least a part of the connection member is formed of an elastic material, and is configured to be deformable between a fitting portion of the pneumatic nozzle and a mounting portion to the pneumatic duct. To do. According to the third aspect, the opening position of the pneumatic nozzle differs between normal yarn spinning and compact yarn spinning, but a special means is used due to elastic deformation of the connecting member into which one end of the pneumatic nozzle is fitted. Therefore, the installation work of the pneumatic nozzle can be easily performed.

  In the present invention, the pneumatic nozzle can be accurately installed when switching between normal yarn spinning and compact yarn spinning.

It is a schematic side view which shows the pneumatic clearer apparatus at the time of compact yarn spinning in 1st Embodiment. It is a schematic side view showing a pneumatic clearer device at the time of spinning ordinary yarn. It is a right view of a pneumatic nozzle. It is sectional drawing of a rubber socket. It is a perspective view which shows a supporting member. The support member is shown, (a) is a plan view of the support member, (b) is a left side view of (a). It is a partial cross section right view which shows the pneumatic nozzle and rubber socket in 2nd Embodiment.

(First embodiment)
A first embodiment will be described with reference to FIGS. In the present specification, the left side of FIG. 1 will be described as the front of the ring spinning machine, and the right side will be described as the rear of the ring spinning machine. FIG. 1 shows a mechanism for spinning a compact yarn. A draft device 1 is composed of a draft roller mechanism 2 for drafting a fiber bundle F and a converging mechanism 3 for converging the spun yarn Y that has passed through the draft roller mechanism 2. The focusing mechanism 3 may be described without being included in the draft device 1. However, in this specification, the draft roller mechanism 2 and the focusing mechanism 3 are more compact in order to make it easier to compare with the mechanism for spinning ordinary yarn. A description will be given assuming that the draft device 1 at the time of yarn spinning is configured. Further, the draft device 1 is provided for each spinning spindle of the ring spinning machine, but FIG. 1 shows only one corresponding to one spinning spindle.

  The draft roller mechanism 2 is configured by a three-wire system including a front roller pair 4, a middle roller pair 5, and a back roller pair 6. The converging mechanism 3 is provided on the front side of the front roller pair 4 (downstream in the delivery direction of the spun yarn Y). And a ventilation conveyance belt 11. The suction pipe 10 is provided with a slit-like suction hole (not shown) extending in the delivery direction of the spun yarn Y. The ventilating and conveying belt 11 is made of a material having appropriate air permeability, and is rotated around the outer periphery of the bottom nip roller 7, the guide portion 9, and the suction pipe 10 by driving the bottom nip roller 7.

  In the draft device 1, the supplied fiber bundle F is drafted by the draft roller mechanism 2. The spun yarn Y fed from the front roller pair 4 of the draft roller mechanism 2 is converged on the ventilation conveyance belt 11 by the suction force of the suction pipe 10 and is held by the bottom nip roller 7 and the top nip roller 8. Sent to the front side of. The spun yarn Y is wound around a winding mechanism (not shown) provided on the lower front side of the focusing mechanism 3.

  The pneumatic cleaner device 12 is configured as follows. In the pneumatic duct 13 disposed along the longitudinal direction of the ring spinning machine, a plurality of openings 14 corresponding to the number of spinning weights are formed along the longitudinal direction of the machine base. A rubber socket 15, which is a connecting member made of an elastic material, is attached to each opening 14 of the pneumatic duct 13 so as not to leak air. The plurality of pneumatic nozzles 16 corresponding to the number of spinning spindles of the ring spinning machine are each fitted with a base end portion 17 in a rubber socket 15. The pneumatic nozzle 16 is held by a support member 18 whose intermediate portion is fixed to a part of the ring spinning machine, so that the tip 19 is on the delivery side of the focusing mechanism 3 of each spinning weight, that is, the bottom nip roller 7 and It is disposed in front of the top nip roller 8.

  FIG. 2 shows a mechanism for spinning a normal yarn. The draft device 1 has only a draft roller mechanism 2 for drafting the fiber bundle F, and the configuration in which the focusing mechanism 3 for the spun yarn Y shown in FIG. 1 is removed. . The configuration relating to the draft roller mechanism 2 and the pneumatic clearer device 12 is the same as that in FIG. Further, unlike the case of FIG. 1, the tip 19 of the pneumatic nozzle 16 is disposed on the delivery side of the draft roller mechanism 2, that is, in front of the front roller pair 4.

  As shown in FIG. 3, the pneumatic nozzle 16 shown in FIGS. 1 and 2 is formed of a cylinder 20, and the internal space is used as the air circulation hole 21. The pneumatic nozzle 16 includes a pinching portion 24 formed by two projecting portions 22 and 23 on the outer periphery of the intermediate portion of the cylinder 20, a first positioning means 25 formed by a flange on the outer periphery on the base end portion 17 side, and an annular groove. The second positioning means 26 is provided.

  The pneumatic nozzle 16 is integrally formed of a resin material together with the clamping portion 24, the first positioning means 25, and the second positioning means 26. The first positioning means 25 and the second positioning means 26 define positions where the pneumatic nozzle 16 is fitted into the rubber socket 15.

  The first positioning means 25 defines the fitting position of the pneumatic nozzle 16 during compact yarn spinning. Therefore, in the case of compact yarn spinning shown in FIG. 1, when the pneumatic nozzle 16 fitted to the rubber socket 15 is positioned by the first positioning means 25, the tip end portion 19 is located on the front side on the delivery side of the focusing mechanism 3. Arranged at the correct position.

  The second positioning means 26 defines the fitting position of the pneumatic nozzle 16 during normal yarn spinning. Therefore, in the case of normal yarn spinning shown in FIG. 2, when the pneumatic nozzle 16 fitted to the rubber socket 15 is positioned by the second positioning means 26, the front end portion 19 is positioned forward of the draft roller mechanism 2. Placed in the exact position.

  In the case of spinning ordinary yarn, since the focusing mechanism 3 does not exist, it is necessary to bring the tip 19 of the pneumatic nozzle 16 close to the front roller pair 4 of the draft roller mechanism 2. Therefore, the second positioning means 26 is provided closer to the proximal end portion 17 side of the pneumatic nozzle 16 than the first positioning means 25. The distance between the first positioning means 25 and the second positioning means 26 is such that the position of the tip 19 of the pneumatic nozzle 16 during compact yarn spinning and the position of the tip 19 of the pneumatic nozzle 16 during normal yarn spinning. It corresponds to the distance between.

  The rubber socket 15 is made of rubber having elasticity, and as shown in FIG. 4, the fitting portion 29 of the proximal end portion 17 of the pneumatic nozzle 16 and the mounting portion 30 and the fitting portion 29 attached to the opening portion 14 of the pneumatic duct 13. It is comprised from the deformation | transformation part 31 which connects between the mounting part 30. FIG. Moreover, the inside of the fitting part 29, the deformation | transformation part 31, and the mounting part 30 is formed in the cavity, and forms the airflow path. The inner diameter of the fitting portion 29 is formed to be the same as or slightly smaller than the outer shape of the base end portion 17 of the pneumatic nozzle 16. Therefore, when the proximal end portion 17 of the pneumatic nozzle 16 is fitted while slightly expanding the fitting portion 29, the outer peripheral surface of the pneumatic nozzle 16 and the inner peripheral surface of the fitting portion 29 are elastic of the fitting portion 29. Adhering by force, air flow leakage is prevented.

  The mounting portion 30 includes a small-diameter annular groove 32 and large-diameter flanges 33 and 34 formed with the annular groove 32 interposed therebetween. The rubber socket 15 is fixed to the pneumatic duct 13 by inserting the flange 34 into the pneumatic duct 13 and elastically holding the peripheral wall surface of the opening 14 by the flanges 33 and 34. The deformation portion 31 is formed in a bellows shape by the large diameter portion 35 and the small diameter portion 36, and is configured so that the rubber socket 15 can be freely deformed in a direction of 360 degrees with respect to the center line X of the rubber socket 15.

  The support member 18 is made of a metal plate material 37 bent in an L shape, and as shown in FIGS. 5 and 6, the support member 18 has a length that can cover the eight spindles (in FIGS. 5 and 6, A portion is broken, and only a length corresponding to 6 spindles is shown). The plate member 37 is provided with eight engagement grooves 38 (only six are shown in the figure) opened to the front side of the spinning weight, and the interval between the engagement grooves 38 is equal to the distance between the spinning weights. It is set to be. Further, a fixing bracket 40 having a hole 39 for attaching the plate member 37 to a part of the frame of the ring spinning machine is provided at one end of the plate member 37. Although not shown, a fixing bracket similar to the fixing bracket 40 is provided at the other end of the plate member 37.

  The operation for adjusting the mounting position of the pneumatic nozzle 16 will be described with reference to FIGS. A draft device 1 shown in FIG. 1 is configured to spin compact yarn in which a draft roller mechanism 2 is provided with a focusing mechanism 3. The support member 18 is disposed at a position at the time of spinning the compact yarn, and is attached to a part of the frame of the ring spinning machine with a bolt or the like (not shown) through the fixing fitting 40. The rubber socket 15 is attached to the opening 14 of the pneumatic duct 13 by the mounting portion 30.

  The pneumatic nozzle 16 is inserted while the base portion 17 pushes the fitting portion 29 of the rubber socket 15 in a state where the clamping portion 24 does not interfere with the support member 18 (a position below the support member 18 in FIG. 1). Then, the first positioning means 25 is inserted to a position where it contacts the entrance of the fitting portion 29. Next, the pneumatic nozzle 16 is pushed upward in FIG. 1 so that the plate material 37 of the support member 18 enters the clamping portion 24.

  At this time, the cylinder 20 of the pneumatic nozzle 16 is fitted into the engaging groove 38 of the plate member 37 and the elastic force of the rubber socket 15 acts, so that the pneumatic nozzle 16 is held by the support member 18. Therefore, the pneumatic nozzle 16 has the tip 19 accurately disposed at an appropriate position at the time of spinning the compact yarn in front of the focusing mechanism 3 and the air circulation hole 21 communicates with the pneumatic duct 13. The spun yarn Y can be sucked accurately.

  The draft device 1 shown in FIG. 2 comprises only a draft roller mechanism 2 and is configured to spin ordinary yarn. When the ring spinning machine is switched from compact yarn spinning to normal yarn spinning (the same applies when switching from normal yarn spinning to compact yarn spinning), the rubber socket 15 may remain attached to the opening 14 of the pneumatic duct 13. . The support member 18 is disposed at a position higher than the position at the time of compact yarn spinning (see FIG. 1) so that it can cope with normal yarn spinning. It is attached to a part of the frame of the ring spinning machine.

  The pneumatic nozzle 16 is in a state in which the clamping portion 24 does not interfere with the support member 18 (a position slightly lower than the support member 18 in FIG. 2) while the base end portion 17 spreads the fitting portion 29 of the rubber socket 15. Inserted until the second positioning means 26 overlaps with the entrance of the fitting portion 29. Next, the pneumatic nozzle 16 is pushed upward in FIG. Since the position of the tip 19 of the pneumatic nozzle 16 at the time of spinning the normal yarn is an upper position as compared with the spinning of the compact yarn, when the pneumatic nozzle 16 is pushed up, the deformed portion 31 of the rubber socket 15 is shown in FIG. It deforms as follows.

  Further, the plate member 37 of the support member 18 enters the clamping portion 24 of the pneumatic nozzle 16, and the engagement groove 38 is engaged with the cylinder 20. For this reason, the pneumatic nozzle 16 is held by the support member 18 by the action of the elastic force of the rubber socket 15. Therefore, the pneumatic nozzle 16 has the tip 19 accurately disposed at an appropriate position during normal yarn spinning in front of the draft roller mechanism 2, and can accurately suck the spun yarn Y when the yarn breaks. .

  As described above, in the first embodiment, by forming the first positioning means 25 and the second positioning means 26 in the pneumatic nozzle 16, the pneumatic nozzle 16 is switched when switching between compact yarn spinning and normal yarn spinning. Can be easily and accurately placed at an appropriate position. Note that the simple configuration of forming the deformable portion 31 in the rubber socket 15 can sufficiently tolerate the change of the tip 19 of the pneumatic nozzle 16 in the vertical direction of the ring spinning machine. Further, since the support member 18 is constituted by the plate material 37, the number of parts can be reduced and the configuration can be simplified.

(Second Embodiment)
FIG. 9 shows the second embodiment. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In the second embodiment, the fitting hole 43 of the fitting portion 42 of the rubber socket 41 is provided with the first positioning means 44 when spinning the compact yarn and the second positioning means 45 when spinning the normal yarn. . The first positioning means 44 is composed of an annular groove carved in the inner wall surface on the back side of the fitting hole 43, and the second positioning means 45 is an annular groove carved in the inner wall surface on the inlet side of the fitting hole 43. It is comprised by. The distance between the first positioning means 44 and the second positioning means 45 is between the position of the tip 19 of the pneumatic nozzle 46 during compact yarn spinning and the position of the tip 19 of the pneumatic nozzle 46 during normal yarn spinning. Corresponds to distance.

  On the other hand, the pneumatic nozzle 46 is formed with an annular positioning protrusion 47 on the base end 17 side. The positioning projection 47 is formed in such a manner that when the proximal end portion 17 of the pneumatic nozzle 46 is inserted into the fitting hole 43 of the rubber socket 41 and fitted into the first positioning means 44, the distal end portion 19 of the pneumatic nozzle 46 is shown in FIG. 1 is set to an appropriate position during spinning of the compact yarn shown in FIG. 1 (when the positioning projection 47 is fitted to the second positioning means 45, the tip 19 of the pneumatic nozzle 46 is shown in FIG. (It will be the proper position when spinning ordinary yarn shown).

  Therefore, during compact yarn spinning, the pneumatic nozzle 46 is inserted into the fitting hole 43 of the fitting portion 42 by inserting the proximal end portion 17 of the pneumatic nozzle 46 until the positioning projection 47 is fitted to the first positioning means 44. The tip portion 19 is disposed at an appropriate position. Further, during normal yarn spinning, the pneumatic nozzle 46 is inserted into the fitting hole 43 of the fitting portion 42 by inserting the proximal end portion 17 of the pneumatic nozzle 46 until the positioning projection 47 is fitted to the second positioning means 45. The tip portion 19 is disposed at an appropriate position.

  As described above, in the second embodiment, the first positioning means 44 and the second positioning means 45 are provided on the rubber socket 41 side, so that the pneumatic nozzle 46 is properly set when switching between compact yarn spinning and normal yarn spinning. It can be easily arranged at the position, and the same effect as the first embodiment can be obtained.

  The present invention is not limited to the configuration of each of the embodiments described above, and various modifications are possible within the scope of the gist of the present invention, and can be implemented as follows.

(1) In the first embodiment, the first positioning means 25 may be formed by an annular groove in the same manner as the second positioning means 26.
(2) In the first embodiment, one or both of the first positioning means 25 and the second positioning means 26 may be configured with marks by coloring or embossing instead of forming flanges or annular grooves.
(3) In the second embodiment, the first positioning means 44 and the second positioning means 45 are not limited to the annular grooves and may be configured by one or a plurality of arc-shaped grooves. Further, the positioning protrusion 47 may be configured to protrude from a part of the outer periphery of the pneumatic nozzle 46.

(4) In the first embodiment and the second embodiment, the rubber sockets 15 and 41 do not need to be formed in a bellows shape, and may be configured to be elastically deformable.
(5) In the first embodiment and the second embodiment, the rubber sockets 15 and 41 may be configured such that the centers of the fitting portions 29 and 42 are eccentric from the center of the opening 14 of the pneumatic duct 13. good. In this example, when switching between compact yarn spinning and normal yarn spinning, the rubber sockets 15 and 41 are turned upside down and attached to the opening so that the pneumatic nozzles 16 and 46 are fitted to the rubber sockets 15 and 41. The tip 19 of the pneumatic nozzles 16 and 46 can be disposed at an appropriate position in the vertical direction without largely deforming the rubber sockets 15 and 41 simply by fitting into the portions 29 and 42.

(6) The connecting member of the present invention is not limited to a rubber member such as the rubber sockets 15 and 41, and is a structure using a plastic material, a metal material, or an elastic material such as a rubber material for a part thereof. Also good.
(7) The support member 18 shown in the first and second embodiments is changed to a configuration in which a support member for each spinning weight is attached to a support rod as disclosed in Patent Document 1. Also good.

DESCRIPTION OF SYMBOLS 1 Draft apparatus 2 Draft roller mechanism 3 Condensing mechanism 12 Pneumatic clearer apparatus 13 Pneumatic ducts 15 and 41 Rubber socket (connection member)
16, 46 Pneumatic nozzle 17 Base end portion 18 Support member 19 Tip portion 20 Tube 21 Air flow hole 24 Nipping portion 25, 44 First positioning means 26, 45 Second positioning means 29, 42 Fitting portion 30 Mounting portion 31 Deformation portion 37 Plate material 38 Engagement groove 47 Positioning projection F Fiber bundle X Center line Y Spinning yarn

Claims (3)

A pneumatic duct extending in the longitudinal direction of the spinning machine is disposed, a connecting member is attached to the pneumatic duct, a proximal end portion is fitted to the connecting member, and a pneumatic nozzle is provided with a distal end portion that opens on the delivery side of the draft device, In the pneumatic clearer device of the spinning machine that holds the pneumatic nozzle by a support member,
One of the pneumatic nozzle and the connecting member is provided with a first positioning means for defining a position where the pneumatic nozzle is fitted into the connecting portion during compact yarn spinning, and the pneumatic nozzle is connected to the connecting portion during normal yarn spinning. A pneumatic cleaner device in a spinning machine, comprising a second positioning means for defining a fitting position.   The pneumatic clearer apparatus for a spinning machine according to claim 1, wherein the first positioning means and the second positioning means are provided on an outer periphery of the pneumatic nozzle.   2. The connection member according to claim 1, wherein at least a part of the connection member is formed of an elastic material, and is configured to be deformable between a fitting portion of the pneumatic nozzle and a mounting portion to the pneumatic duct. A pneumatic cleaner device in a spinning machine according to claim 2.

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