JP2010159499A - Draw texturing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a false twisting machine provided with means for changing the distance of a heating zone on draw texturing. <P>SOLUTION: The draw texturing machine 100 including a twister 111 for twisting a traveling yarn Y, and a primary heater 109 disposed on the upstream side of the twister 111 to heat the yarn Y twisted by the twister 111, includes first yarn guide-forming means for forming a yarn guide for reciprocating the yarn Y in the primary heater 109 along the longitudinal direction of the primary heater 109, and second yarn guide-forming means for forming a yarn guide for one-way traveling the yarn Y in the primary heater 109 along the longitudinal direction of the primary heater 109. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a drawing false twister.

  As this type of technology, Patent Document 1 (Japanese Patent Laid-Open No. 2001-295151) includes a texturing heater means for forming a yarn heating space along the longitudinal direction on the upstream side of a twister. Disclosed is a drawing false twisting machine in which a yarn to be treated is heated. In this drawing false twisting machine, the yarn to be treated is preheated by the heater means, and then the yarn to be treated is reciprocated through the heater means for heat treatment, thereby shortening the heater means. I am trying.

  By the way, if the denier value of the yarn is different, the distance of the heating zone required for heating the yarn is also different. That is, a thick denier (for example, 150D or more) yarn requires a relatively long heating zone, while a fine denier (for example, 75D or less) is sufficient for a short heating zone.

  However, in the configuration of Patent Document 1, as can be seen from FIGS. 1 to 4 of Patent Document 1, the distance of the heating zone cannot be changed at all.

  This invention is made | formed in view of such various points, The main objective is to provide the technique for changing the distance of the said heating zone.

Means and effects for solving the problems

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

  According to the viewpoint of this invention, the extending | stretching false twist machine comprised as follows is provided. That is, the drawing false twisting machine is a twisting device that applies twist to the traveling yarn, and a yarn that is arranged on the upstream side of the twisting device and that heats the yarn that has been twisted by the twisting device. A heating device. First yarn path forming means for forming a yarn path for reciprocating the yarn along the longitudinal direction of the yarn heating apparatus in the yarn heating apparatus, and the yarn in the yarn path heating apparatus And a second yarn path forming means for forming a yarn path for causing the strip to travel one way along the longitudinal direction of the yarn heating device. With the above configuration, the distance of the heating zone can be changed by selecting and employing either the yarn path of the first yarn path forming means or the yarn path of the second yarn path forming means. it can. Therefore, for example, when it is desired to false twist the thick denier yarn, the yarn path of the first yarn path forming means is employed and the yarn is sufficiently heated. On the other hand, when it is desired to false twist the fine denier yarn, the yarn path of the second yarn path forming means is employed to suppress the heating of the yarn. As described above, according to the above configuration, the heating mode most suitable for each of the yarns having different denier values is realized. Therefore, it is possible to perform false twist processing without any problem with a thick denier yarn or a fine denier yarn. .

  The drawing false twisting machine is further configured as follows. That is, two yarn heating chambers are formed in the yarn heating device. The yarn path of the first yarn path forming means includes the two yarn heating chambers, and the yarn path of the second yarn path forming means includes only one of the two yarn heating chambers. According to said structure, formation in the said yarn heating apparatus of each yarn path is implement | achieved with a simple structure.

  The drawing false twisting machine is further configured as follows. In other words, a partition is provided between the two yarn heating chambers, and the oil agent generated from the yarns by heating in the yarn heating chamber corresponding to the upstream side of the yarn path of the first yarn path forming means. Smoke exhaust means for exhausting gas was provided. In this way, a partition is provided between the two yarn heating chambers, and efficient smoke exhaustion is realized by actively providing smoke exhausting means especially for the yarn heating chamber where oil gas is likely to be generated. To do. Further, since the oil agent gas does not flow into the yarn heating chamber corresponding to the downstream side, the maintenance becomes easier.

  The drawing false twisting machine is further configured as follows. That is, a separate heating source was provided for each of the two yarn heating chambers. According to the above structure, it contributes to the power consumption reduction at the time of employ | adopting the yarn path of the said 2nd yarn path formation means.

  The drawing false twisting machine is further configured as follows. That is, to heat the yarn on the yarn path between the first yarn path forming means and the downstream yarn heating chamber to the downstream yarn heating chamber. A heating source was provided. According to the configuration described above, when the yarn path of the first yarn path forming means is adopted, the yarn exits from the upstream yarn heating chamber to the downstream yarn heating chamber. Can be prevented from cooling.

  The drawing false twisting machine is further configured as follows. That is, among the yarn paths of the first yarn path forming means, the running direction of the yarn is set on the yarn path between the upstream side of the yarn heating chamber and the downstream side of the yarn heating chamber. A guide roller for reversing was provided. This guide roller is provided with a rotation control means for switching between the permissible and prohibition of the rotation. That is, when the rotation of the guide roller is allowed, propagation of the twist applied to the yarn by the twisting device is hindered by the guide roller. On the other hand, when the rotation of the guide roller is prohibited, a large difference occurs in the tension between the upstream and downstream yarns across the guide roller. Thus, whether the rotation of the guide roller is allowed or prohibited has a considerable influence on the propagation of the twist and the tension difference. Therefore, according to the above configuration, since the guide roller can be switched between permissible and prohibition of rotation, selection that fits different priorities depending on the yarn type is realized.

  The drawing false twisting machine is further configured as follows. That is, among the yarn paths of the first yarn path forming means, the running direction of the yarn is set on the yarn path between the upstream side of the yarn heating chamber and the downstream side of the yarn heating chamber. A guide roller for reversing was provided. The bearing of the guide roller was an air bearing or a magnetic bearing. In the above configuration, the bearing of the guide roller is heated by the heating source. By using the air bearing or the magnetic bearing as the bearing, the rotation of the guide roller is hardly affected by heat. .

Schematic diagram of the entire drawing false twisting machine according to the first embodiment of the present invention. 1 is a cross-sectional view taken along line AA in FIG. B line arrow view of FIG. Overall schematic view of a drawing false twisting machine according to a second embodiment of the present invention. C line arrow view of FIG. Overall schematic view of the drawing false twister according to the third embodiment of the present invention. The figure which concerns on 3rd embodiment of this invention, and is similar to FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an overall schematic diagram of a drawing false twisting machine according to a first embodiment of the present invention.

  In the present embodiment, the drawing false twisting machine 100 includes a yarn supplying unit 102 that supplies the yarn Y from the yarn supplying package 101, and a yarn that performs drawing false twisting on the yarn Y supplied from the yarn supplying unit 102. A weight comprising: a processing unit 103; and a winding unit 104 that winds the yarn Y that has been subjected to the drawing false twisting process by the yarn processing unit 103 to form a winding package P having a predetermined diameter. A plurality of 105 are provided. The plurality of weights 105 are provided side by side in the direction perpendicular to the paper surface of FIG. For the purpose of making the drawing false twisting machine 100 compact, as shown in FIG. 1, the yarn supplying unit 102 and the winding unit 104 are arranged one above the other.

  The yarn supply package 101 is held by a peg 107 of a common creel stand 106 with a plurality of weights 105.

  The yarn processing unit 103 includes, in order along the traveling direction of the yarn Y, a first feed roller 108, a primary heater 109 (yarn heating device), a cooler 110, a twisting device 111, and a second feed roller. 114, an interlace nozzle 115, a secondary heater 116, and a third feed roller 117. The yarn feed speed of the second feed roller 114 is set to be larger than the yarn feed speed of the first feed roller 108 so that the yarn Y is stretched between the first feed roller 108 and the second feed roller 114. Is done. On the other hand, the yarn feed speed of the third feed roller 117 is compared with the yarn feed speed of the second feed roller 114 so that the yarn Y is relaxed between the second feed roller 114 and the third feed roller 117. Set small.

  The twisting device 111 imparts twist to the traveling yarn Y, and the twist imparted to the yarn Y propagates from the twisting device 111 toward the upstream side in the traveling direction of the yarn Y. The yarn Y is heat-set by the primary heater 109 while being twisted while being drawn, then cooled by the cooler 110 and untwisted when passing through the twisting device 111. The yarn Y that has been subjected to the drawing false twist treatment is provided with a converging property similar to that of the twisted yarn by appropriately forming an entangled portion in the interlace nozzle 115. Thereafter, the yarn Y is subjected to a predetermined heat treatment in the secondary heater 116 in a relaxed state, and is wound as a winding package P in the winding unit 104.

  In the present embodiment, the cooler 110 and the primary heater 109 are laid out so as to be in a substantially straight line obliquely upward. Each weight 105 is also arranged on the left side of the drawing so as to be symmetric with respect to the symmetry axis C. And since the cooler 110 and the primary heater 109 laid out symmetrically with respect to the symmetry axis C recall the alphabet “V”, the drawing false twisting machine 100 according to this embodiment is referred to as a V type.

  In the present embodiment, a guide roller G1 is provided in the vicinity of the lower end portion 109b of the primary heater 109. A guide roller G <b> 2 is provided at the upper end portion 109 a of the primary heater 109. A guide roller G3 is provided in the vicinity of the upper end 109a of the primary heater 109. With this configuration, in the drawing false twisting machine 100 according to the present embodiment, two ways of yarn paths of the yarn Y are formed.

  That is, one is indicated by a solid line in FIG. 1, and a yarn path for a thick denier (hereinafter simply referred to as a thick denier yarn) for reciprocating the yarn Y along the longitudinal direction of the primary heater 109 in the primary heater 109. It is called a road.) In this case, the yarn Y that has passed through the first feed roller 108 is guided into the primary heater 109 via the guide roller G1, travels inside the primary heater 109 toward the guide roller G2, and reaches the guide roller G2. And the guide roller G2 reverses the traveling direction by 180 degrees, travels again in the primary heater 109 toward the cooler 110, and eventually passes through the primary heater 109 and is guided into the cooler 110.

  The other is indicated by a two-dot chain line in FIG. 1, and a yarn path for fine denier (hereinafter simply referred to as fine denier) for causing the yarn Y to travel one way along the longitudinal direction of the primary heater 109 in the primary heater 109. This is referred to as a yarn thread). In this case, the yarn Y that has passed through the first feed roller 108 is guided into the primary heater 109 through the guide roller G3 and the guide roller G2 in this order, and travels in the primary heater 109 toward the cooler 110. Eventually, it passes through the primary heater 109 and is guided into the cooler 110.

  In the present embodiment, the first yarn path forming means forms the thick denier yarn path and includes at least the guide roller G1 and the guide roller G2. The second yarn path forming means forms the fine denier yarn path and includes at least a guide roller G2.

  Next, the configuration of the primary heater 109 and each yarn path will be described with reference to FIGS. FIG. 2 is a cross-sectional view taken along line AA in FIG. 3 is a view taken in the direction of arrow B in FIG.

  As shown in FIGS. 2 and 3, two yarn heating chambers 1 a and 1 b (yarn heating chambers) are formed in the primary heater 109. As shown by a solid line in FIG. 3, the thick denier yarn path from the first feed roller 108 to the cooler 110 is formed including the two yarn heating chambers 1a and 1b. On the other hand, the thin denier yarn path from the first feed roller 108 to the cooler 110 as shown by the broken line in FIG. 3 bypasses the yarn heating chamber 1a of the two yarn heating chambers 1a and 1b, It is formed including only the yarn heating chamber 1b.

  As shown in FIG. 2, the primary heater 109 is doubled so as to surround the heating source 2a for the yarn heating chamber 1a, the heating source 2b for the yarn heating chamber 1b, and these heating sources 2a and 2b. The heat insulating materials 3 and 4 to be formed are provided as a main configuration. And the said heat insulating materials 3 * 4 are opened in one direction by two places, The said yarn heating chamber 1a is formed between the heat insulating material 3 and the heating source 2a, Between the heat insulating material 3 and the heating source 2b The above-described yarn heating chamber 1b is formed. In this configuration, reference symbols Y1 and Y2 indicate thick denier yarn paths, and reference symbols Y1 and Y3 indicate thin denier yarn paths. The atmospheric temperature in the yarn heating chamber 1a is controlled by the heating source 2a, and the atmospheric temperature in the yarn heating chamber 1b is controlled by the heating source 2b. In short, the yarn heating chamber 1a and the yarn heating chamber 1b are provided with separate heating sources 2a and 2b, respectively, and the ambient temperature in each of the yarn heating chambers 1a and 1b is two independent heating sources 2a and 2b. Can be freely controlled. Reference numeral 5 denotes a heating element such as a nichrome wire that the heating sources 2a and 2b have.

  A partition wall 6 (partition) is formed between the yarn heating chambers 1a and 1b, and the yarn heating chambers 1a and 1b are spatially independent from each other. In the present embodiment, the partition wall 6 includes a pair of heat sources 2 a and 2 b and a heat insulating material portion 4 a corresponding to a part of the heat insulating material 4. And, in the yarn heating chamber 1a corresponding to the upstream side of the thick denier yarn path, a smoke exhausting mechanism 7 (smoke exhausting means) for exhausting the oil agent gas generated from the yarn Y (Y2) by heating. Is provided. The smoke exhausting mechanism 7 includes a plurality of exhaust passages 9 having one end opened on the inner wall surface 8a of the yarn heating chamber 1a and the other end opened on the outer wall surface 8b of the heat insulating material 4, and the plurality of exhaust passages 9 shown in FIG. The communication flow path 10 for communicating with the exhaust blower 11 schematically shown in FIG. The plurality of exhaust passages 9 are uniformly formed along the longitudinal direction of the yarn heating chamber 1a as shown in FIG. In FIG. 3, the arrow drawn in the communication channel 10 is an image of the flow of the oil gas in the communication channel 10. However, although it is not necessary to have an equal interval, it is desirable that the exhaust passage 9 be located in the vicinity of the guide piece 12. This is because the accompanying flow of the yarn Y is disturbed by the guide piece 12 and the smoke is peeled off.

  2 and 3, the primary heater 109 according to this embodiment is configured in a non-contact manner. That is, the primary heater 109 includes a plurality of guide pieces 12 that support the yarn Y that travels while being stretched in the primary heater 109 in a state where a twist is applied. The guide pieces 12 are arranged in the yarn heating chamber 1a as shown in FIG. 2, and are laid out at equal intervals along the longitudinal direction of the yarn heating chamber 1a as shown in FIG. Similarly, the guide pieces 12 are arranged in the yarn heating chamber 1b and laid out at equal intervals along the longitudinal direction of the yarn heating chamber 1b. As shown in FIG. 2, each guide piece 12 is formed with a thread accommodating groove 12a that opens in the same direction as the opening direction of the yarn heating chambers 1a and 1b, and the yarn accommodating groove 12a has a thread accommodating groove 12a. By accommodating Y, the yarn Y running in the primary heater 109 is prevented from fluttering while being stretched in the primary heater 109 while being twisted. Is to be prevented. The yarn heating chamber 1a side opening 9a of the exhaust passage 9 is formed so as to be very close to each of the guide pieces 12, as shown in FIG. The adhesion can be suppressed to the maximum.

  Next, the guide rollers G1 to G3 will be described. That is, as shown in FIG. 3, the guide roller G <b> 1 is provided in the vicinity of the lower end portion 109 b of the primary heater 109, and the yarn Y fed from the first feed roller 108 is used as the yarn in the primary heater 109. Guide to the heating chamber 1a.

  Further, the guide roller G2 is disposed on the yarn path between the upstream yarn heating chamber 1a and the downstream yarn heating chamber 1b of the thick denier yarn path as shown in FIG. It is used to reverse the running direction of the yarn Y from the upper direction to the lower direction. This guide roller G2 is rotatably supported by the primary heater 109 via a bearing 13 schematically shown by a broken line. This bearing 13 is comprised by the air bearing or the magnetic bearing in this embodiment. The guide roller G2 is provided with a brake mechanism 14 (rotation control means) for switching between allowing and prohibiting the rotation. In the present embodiment, the brake mechanism 14 includes a friction member, a pressing means such as a compression spring for pressing the friction member against the outer peripheral surface of the guide roller G2, and a pressing for prohibiting the pressing by the pressing means. And prohibiting means. The rotation of the guide roller G2 can be switched between permitted and prohibited by allowing the friction member to be pressed against the outer peripheral surface of the guide roller G2 or by using a pressing prohibiting means. Further, as shown in FIG. 3, the yarn Y is heated on the yarn path between the upstream yarn heating chamber 1a and the downstream yarn heating chamber 1b of the thick denier yarn path. A heating source 15 is provided. In the present embodiment, the heating source 15 is disposed in the vicinity of the yarn path between the upstream yarn heating chamber 1a and the downstream yarn heating chamber 1b. The guide roller G2 is heated indirectly by heating. The guide roller G2 is disposed in the upper end portion 109a of the primary heater 109 and is surrounded by the heat insulating material 16.

  The guide roller G3 is disposed in the vicinity of the upper end 109a of the primary heater 109 in the present embodiment, and the fine denier yarn path between the first feed roller 108 and the guide roller G2 interferes with the primary heater 109. To prevent it.

  With the above configuration, the first yarn path forming means according to this embodiment includes the guide roller G1 and the guide roller G2. The second yarn path forming means includes a guide roller G2 and a guide roller G3.

  Next, the operation of the drawing false twisting machine 100 according to this embodiment will be described. Here, the operation around the primary heater 109 will be described in particular.

  That is, when a thick denier yarn path is employed, the yarn Y is transferred to the first feed roller 108, the guide roller G1, the guide roller G2, and the cooler 110 as shown by the solid line in FIG. Thread them in order. Further, the prohibition of the rotation of the guide roller G2 by the brake mechanism 14 is canceled in advance. Furthermore, the atmosphere in the yarn heating chambers 1a and 1b is sufficiently heated using the heating sources 2a and 2b shown in FIG. Then, as shown in FIG. 1, the yarn Y is twisted using the twisting device 111 and the yarn Y is stretched using the first feed roller 108 and the second feed roller 114. When running, the twist imparted by the twisting device 111 goes up to the guide roller G1 in FIG. The yarn Y traveling toward the downstream side from the guide roller G1 is guided and heated in the yarn heating chamber 1a, and the oil agent that has been soaked in the yarn Y in the yarn heating chamber 1a is evaporated. The oil gas generated by this evaporation is efficiently exhausted by the exhaust mechanism 7. Then, when the yarn Y that has passed through the yarn heating chamber 1a reaches the guide roller G2, the traveling direction is reversed by 180 degrees from the upper side to the lower side on the paper surface by the guide roller G2, and then inside the yarn heating chamber 1b. To be introduced. The yarn Y is further heated in the yarn heating chamber 1b, and eventually passes through the yarn heating chamber 1b and is fed to the cooler 110.

  On the other hand, when the fine denier yarn path is adopted, the yarn Y is transferred to the first feed roller 108, the guide roller G3, the guide roller G2, and the cooler 110 as shown by a broken line in FIG. Thread them in order. Further, the prohibition of the rotation of the guide roller G2 by the brake mechanism 14 is canceled in advance. Furthermore, only the atmosphere in the yarn heating chamber 1b is sufficiently heated using the heating source 2b shown in FIG. Then, as shown in FIG. 1, the yarn Y is twisted using the twisting device 111, and the yarn Y is stretched using the first feed roller 108 and the second feed roller 114. When running, the twist imparted by the twisting device 111 goes up to the guide roller G2 in FIG. This is because the twist imparted to the fine denier yarn Y is difficult to go up beyond the guide roller. The yarn Y traveling downstream from the first feed roller 108 is guided into the yarn heating chamber 1b through the guide roller G3 and the guide roller G2 and heated. In addition, the fine denier yarn Y is considered to be remarkably less evaporated by heating than the thick denier yarn Y. Therefore, even if the fine denier yarn Y is heated in the yarn heating chamber 1b, almost no oil gas is generated in the yarn heating chamber 1b. Then, the yarn Y that has passed through the yarn heating chamber 1b is eventually fed to the cooler 110. When this fine denier yarn path is employed, a smoke exhaust suction port may be provided on the upstream side, the downstream side, or both of the primary heater 109 as in the prior art.

(Summary)
(Claim 1)
As described above, in the first embodiment, the drawing false twisting machine 100 is configured as follows. That is, the drawing false twisting machine 100 is arranged on the upstream side of the twisting device 111 that imparts a twist to the traveling yarn Y, and the above-mentioned yarn that has been twisted by the twisting device 111. And a primary heater 109 for heating Y. A first yarn path forming means for forming a yarn path for reciprocating the yarn Y along the longitudinal direction of the primary heater 109 in the primary heater 109; and the yarn Y in the primary heater 109. And a second yarn path forming means for forming a yarn path for traveling one way along the longitudinal direction of the primary heater 109. With the above configuration, the distance of the heating zone can be changed by selecting and employing either the yarn path of the first yarn path forming means or the yarn path of the second yarn path forming means. it can. Therefore, for example, when it is desired to false twist the thick denier yarn Y, the thick denier yarn path which is the yarn path of the first yarn path forming means is employed, and the yarn Y is heated sufficiently. On the other hand, when it is desired to false twist the fine denier yarn Y, the fine denier yarn path which is the yarn path of the second yarn path forming means is employed to suppress the heating of the yarn Y. As described above, according to the above configuration, the heating mode most suitable for each of the yarns Y having different denier values is realized. Therefore, it is possible to use the thick denier yarn Y and the fine denier yarn Y without any problem. Can be twisted.

(Claim 2)
The drawing false twisting machine 100 is further configured as follows. That is, two yarn heating chambers 1 a and 1 b are formed in the primary heater 109. The thick denier yarn path includes the two yarn heating chambers 1a and 1b, and the thin denier yarn path includes the yarn heating chamber 1b of the two yarn heating chambers 1a and 1b. According to the above configuration, formation of each yarn path in the primary heater 109 is realized with a simple configuration.

(Claim 3)
The drawing false twisting machine 100 is further configured as follows. That is, a partition wall 6 is provided between the two yarn heating chambers 1a and 1b, and an oil gas generated from the yarn Y by heating in the yarn heating chamber 1a corresponding to the upstream side of the thick denier yarn path. A smoke exhaust mechanism 7 for exhausting smoke is provided. In this way, a partition is provided between the two yarn heating chambers 1a and 1b, and an efficient smoke exhausting mechanism 7 is provided for the yarn heating chamber 1a in which the oil agent gas is easily generated. Smoke is realized. Further, since the oil agent gas does not flow into the yarn heating chamber 1b corresponding to the downstream side, the maintenance becomes easier.

(Claim 4)
The drawing false twisting machine 100 is further configured as follows. That is, separate heating sources 2a and 2b are provided in the two yarn heating chambers 1a and 1b, respectively. According to the above structure, it contributes to the power consumption reduction at the time of employ | adopting the thread path for fine deniers. That is, when the fine denier yarn path is adopted, the energization of the heating source 2a can be stopped without any problem.

(Claim 5)
The drawing false twisting machine 100 is further configured as follows. That is, among the thick denier yarn paths, a heating source 15 for heating the yarn Y is provided on the yarn path between the upstream yarn heating chamber 1a and the downstream yarn heating chamber 1b. . According to the above configuration, when the thick denier yarn path is adopted, the yarn Y is prevented from cooling down from the upstream yarn heating chamber 1a to the downstream yarn heating chamber 1b. it can.

(Claim 6)
The drawing false twisting machine 100 is further configured as follows. That is, of the thick denier yarn path, the guide roller G2 for reversing the traveling direction of the yarn Y on the yarn path from the upstream yarn heating chamber 1a to the downstream yarn heating chamber 1b. Was provided. The guide roller G2 is provided with a brake mechanism 14 for switching between permission and prohibition of rotation. That is, when the rotation of the guide roller G2 is allowed, propagation of the twist applied to the yarn Y by the twisting device 111 is inhibited by the guide roller G2. On the other hand, when the rotation of the guide roller G2 is prohibited, a large difference occurs in the tension between the upstream and downstream yarns Y with the guide roller G2 interposed therebetween. Thus, whether the rotation of the guide roller G2 is permitted or prohibited has a considerable influence on the propagation of the twist and the tension difference. Therefore, according to the configuration described above, the guide roller G2 can switch between allowing and prohibiting its rotation, so that selection that fits different priorities depending on the thread type is realized.

(Claim 7)
The drawing false twisting machine 100 is further configured as follows. That is, of the thick denier yarn path, the guide roller G2 for reversing the traveling direction of the yarn Y on the yarn path from the upstream yarn heating chamber 1a to the downstream yarn heating chamber 1b. Was provided. The bearing 13 of the guide roller G2 is an air bearing or a magnetic bearing. In the above configuration, the bearing 13 of the guide roller G2 is heated by the heating source 15. By using the bearing 13 as an air bearing or a magnetic bearing, the rotation of the guide roller G2 is caused by heat. It becomes difficult to be affected.

  Next, a second embodiment of the present invention will be described. FIG. 4 is an overall schematic view of a drawing false twisting machine according to the second embodiment of the present invention. FIG. 5 is a view taken in the direction of arrow C in FIG. Hereinafter, the present embodiment will be described with a focus on differences from the first embodiment, and description of overlapping portions will be omitted as appropriate.

  In the first embodiment, the primary heater 109 is laid out so as to be substantially in line with the cooler 110 as shown in FIG. 1, whereas the primary heater 109 according to the present embodiment is shown in FIG. As shown in FIG. 4, it is laid out in an upright position so as to form an acute angle with the cooler 110. Also in the present embodiment, as in the first embodiment, the weights 105 are also arranged on the left side of the sheet so as to be symmetric with respect to the symmetry axis C. In addition, since the cooler 110 and the primary heater 109 laid out symmetrically with respect to the symmetry axis C recall the alphabet “M”, the drawing false twisting machine 100 according to the present embodiment is referred to as an M type.

  In the present embodiment, a guide roller G4 is provided at the lower end 109d of the primary heater 109. Further, a guide roller G5 and a guide roller G6 are provided in the vicinity of the upper end portion 109c of the primary heater 109. With this configuration, in the drawing false twisting machine 100 according to the present embodiment, two yarn paths of the yarn Y are formed as in the first embodiment. That is, the thick denier yarn path according to the first embodiment is indicated by a solid line in FIG. 5, and similarly, the fine denier yarn path is indicated by a broken line in FIG.

  That is, in this embodiment, when the thick denier yarn path is employed, the yarn Y that has passed through the first feed roller 108 is guided into the primary heater 109 via the guide roller G6 and the guide roller G5, and this primary It travels toward the guide roller G4 in the heater 109, and when it reaches the guide roller G4, the travel direction is reversed 180 degrees by the guide roller G4, travels again toward the cooler 110 in the primary heater 109, and eventually the primary It passes through the heater 109 and is guided into the cooler 110.

  On the other hand, in the present embodiment, when the fine denier yarn path is adopted, the yarn Y that has passed through the first feed roller 108 is directly introduced into the primary heater 109, and the interior of the primary heater 109 is directed to the cooler 110. After a while, it passes through the primary heater 109 and is led into the cooler 110.

  In the present embodiment, the first yarn path forming means forms the thick denier yarn path and includes at least the guide roller G5 and the guide roller G4. The second yarn path forming means forms the fine denier yarn path. The second yarn path forming means is realized by the layout itself in which the upper end portion 109c, the lower end portion 109d of the primary heater 109 and the first feed roller 108 are arranged in a substantially straight line.

  Next, a third embodiment of the present invention will be described. FIG. 6 is an overall schematic view of a drawing false twisting machine according to the third embodiment of the present invention. Hereinafter, the present embodiment will be described with a focus on differences from the first embodiment, and description of overlapping portions will be omitted as appropriate.

  In the first embodiment, the cooler 110 and the primary heater 109 are laid out so as to be in a substantially straight line obliquely upward. On the other hand, the cooler 110 and the primary heater 109 according to the present embodiment are It is laid out so as to be substantially straight in a substantially horizontal direction. Also in the present embodiment, as in the first embodiment, the weights 105 are also arranged on the left side of the sheet so as to be symmetric with respect to the symmetry axis C. Further, the cooler 110, the primary heater 109, and the winding unit 104, which are laid out symmetrically with respect to the symmetry axis C, recall the alphabet “T”. Therefore, the drawing false twisting machine 100 according to the present embodiment is a T type. It is called.

  In the present embodiment, a guide roller G7 is provided at the right end 109e of the primary heater 109, and a yarn guide 118 is provided in the vicinity of the right end 109e. A guide roller G8 is provided in the vicinity of the left end 109f of the primary heater 109. With this configuration, in the drawing false twisting machine 100 according to the present embodiment, two yarn paths of the yarn Y are formed as in the first embodiment. That is, the thick denier yarn path according to the first embodiment is indicated by a solid line in FIG. 7, and similarly, the fine denier yarn path is indicated by a broken line in FIG.

  That is, in the present embodiment, when the thick denier yarn path is adopted, the yarn Y that has passed through the first feed roller 108 is guided into the primary heater 109 via the guide roller G8, and the inside of the primary heater 109 Is driven toward the guide roller G7. When the guide roller G7 is reached, the travel direction is reversed by 180 degrees by the guide roller G7, travels again in the primary heater 109 toward the cooler 110, and eventually the primary heater 109 is turned off. It escapes and is led into the cooler 110.

  On the other hand, in this embodiment, when the fine denier yarn path is adopted, the yarn Y that has passed through the first feed roller 108 is guided into the primary heater 109 via the yarn guide 118, and the inside of the primary heater 109 The vehicle travels toward the cooler 110 and eventually passes through the primary heater 109 and is guided into the cooler 110.

  In the present embodiment, the first yarn path forming means forms the thick denier yarn path and includes at least the guide roller G8 and the guide roller G7. The second yarn path forming means forms the fine denier yarn path and includes at least a yarn guide 118.

  Although the preferred embodiments of the present invention have been described above, the above embodiments can be implemented with the following modifications.

  That is, for example, in each of the above-described embodiments, the primary heater 109 has a plurality of yarns Y that travel in the primary heater 109 laid out at equal intervals along the longitudinal direction of the primary heater 109 as shown in FIG. A so-called non-contact type supported by the guide piece 12 was adopted. However, instead of this, the primary heater 109 supports the yarn Y traveling in the primary heater 109 by a guide rail (not shown) having a U-shaped cross section laid along the longitudinal direction of the primary heater 109. It may be an expression.

100 Stretching false twisting machine 109 Primary heater 111 Twisting device Y Yarn

Claims (7)

A twisting device for imparting twist to the traveling yarn;
A yarn heating device that is arranged on the upstream side of the twisting device and heats the yarn that has been twisted by the twisting device;
A drawing false twisting machine comprising:
First yarn path forming means for forming a yarn path for reciprocating the yarn along the longitudinal direction of the yarn heating device in the yarn heating device;
A second yarn path forming means for forming a yarn path for causing the yarn to travel one way along the longitudinal direction of the yarn heating apparatus in the yarn path heating device;
A drawing false twisting machine characterized by comprising: The drawing false twisting machine according to claim 1,
Two yarn heating chambers are formed in the yarn heating device,
The yarn path of the first yarn path forming means includes the two yarn heating chambers,
The yarn path of the second yarn path forming means includes only one of the two yarn heating chambers;
A drawing false twisting machine characterized by that. The drawing false twisting machine according to claim 2,
While providing a partition between the two yarn heating chambers,
In the yarn heating chamber corresponding to the upstream side of the yarn path of the first yarn path forming means, a smoke exhausting means for exhausting the oil agent gas generated from the yarn by heating is provided.
A drawing false twisting machine characterized by that. The drawing false twister according to claim 2 or 3,
A separate heating source was provided for each of the two yarn heating chambers,
A drawing false twisting machine characterized by that. The drawing false twisting machine according to any one of claims 2 to 4,
Heat for heating the yarn on the yarn path between the first yarn path forming means and the downstream yarn heating chamber and the downstream yarn heating chamber. Provided a source,
A drawing false twisting machine characterized by that. The drawing false twisting machine according to claim 2,
Of the yarn paths of the first yarn path forming means, the running direction of the yarn is reversed to the yarn path between the upstream side yarn heating chamber and the downstream side yarn heating chamber. A guide roller for
This guide roller is provided with a rotation control means for switching between permission and prohibition of rotation,
A drawing false twisting machine characterized by that. The drawing false twisting machine according to claim 5,
Of the yarn paths of the first yarn path forming means, the running direction of the yarn is reversed to the yarn path between the upstream side yarn heating chamber and the downstream side yarn heating chamber. A guide roller for
The guide roller bearing is an air bearing or a magnetic bearing.
A drawing false twisting machine characterized by that.

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