JP2010159500A - Yarn cooler, fiber machine, and method for cooling yarn - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a quite new technique for improving the cooling performance of a yarn cooler. <P>SOLUTION: This cooler 110 for bringing a traveling yarn Y into contact with a cylinder 1 to cool the yarn Y is configured to move the contact part of the cylinder 1 with the traveling yarn Y on the cylinder 1 and simultaneously cool the yarn Y. Thus, since the yarn Y travels to avoid the locally high temperature parts of the cylinder 1, the cooling performance of the cooler 110 is improved. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a yarn cooling device, a textile machine, and a yarn cooling method.

  As this type of technology, Patent Document 1 (Japanese Patent Publication No. 2003-500244) discloses a textile machine including a heating device, a cooling device, and a textured device in order to texture a thermoplastic yarn. In this cooling device, the yarn is cooled by winding the yarn in a winding shape around the outer peripheral surface of the cooling pipe. In addition, an abutment yarn guide and a withdrawal yarn guide are provided at the upstream end portion and the downstream end portion of the cooling pipe, respectively. By adjusting the attachment positions of these yarn guides appropriately, for example, strong cooling In order to realize this, the degree of winding of the yarn in the cooling pipe can be switched.

  Patent Document 2 (Japanese Patent Publication No. 2005-501980) describes that the cooling pipe itself is inclined in order to change the length of the cooling section along the surface of the cooling pipe. This technique is also similar to the technique disclosed in Patent Document 1, and the gist is that it is desired to easily switch the strength of the cooling of the yarn.

  There are a few techniques that make it possible to easily switch the strength of the yarn cooling. Based on the above patent documents, the inventors of the present invention succeeded in improving the cooling performance of the above-described yarn cooling device from a completely new viewpoint. That is, the main object of the present invention is to provide a completely new technique for improving the cooling performance of the yarn cooling device.

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 first aspect of the present invention, the yarn cooling device that cools the yarn by bringing the traveling yarn into contact with the heat receiving member is configured as follows. That is, the yarn is cooled while the contact portion of the heat receiving member with respect to the traveling yarn is shifted on the heat receiving member. According to the above configuration, the yarn travels so as to avoid a locally high temperature portion of the heat receiving member, so that the cooling performance of the yarn cooling device is improved.

  The above-described yarn cooling device is further configured as follows. That is, the heat receiving member is formed in a circular cross section. Rotation driving means for rotating the heat receiving member around its axis is provided. According to the above configuration, a contact portion of the heat receiving member with respect to the traveling yarn can be shifted on the heat receiving member with a simple configuration.

  The above-described yarn cooling device is further configured as follows. That is, a cooling channel is formed in the heat receiving member. A cooling flow generating means for forming a cooling flow in the cooling flow path was provided. According to the above configuration, the cooling performance of the yarn cooling device is further improved.

  The above-described yarn cooling device is further configured as follows. That is, the cooling flow generating means is accommodated in the heat receiving member. According to the above configuration, the yarn cooling device provided with the cooling flow generating means can be configured in a compact and compact manner.

  The above-described yarn cooling device is further configured as follows. That is, a yarn guide is provided for guiding the traveling yarn to the heat receiving member. The yarn guide is formed such that two or more traveling yarns can be guided simultaneously with respect to the heat receiving member. By forming the yarn guide in this way, when it is necessary to install a plurality of the yarn cooling devices, the required number of the yarn cooling devices can be halved.

  Moreover, since the above-described yarn cooling device is excellent in cooling performance, the yarn cooling device itself can be made compact accordingly. Accordingly, the textile machine including the yarn cooling device can be made compact.

  According to the second aspect of the present invention, the yarn cooling for cooling the yarn by bringing the traveling yarn into contact with the heat receiving member is performed by the following method. That is, the yarn is cooled while the contact portion of the heat receiving member with respect to the traveling yarn is shifted on the heat receiving member. According to this, the yarn travels so as to avoid a portion of the heat receiving member that is locally hot, so that the cooling performance of the yarn is improved.

  The above-described yarn cooling is further performed by the following method. That is, the heat receiving member is formed in a circular cross section. The heat receiving member is rotated about its axis. According to this, the contact part of the heat receiving member with respect to the traveling yarn can be shifted on the heat receiving member in a simple manner.

  The above-described yarn cooling is further performed by the following method. That is, the traveling yarn is brought into spiral contact with the outer peripheral surface of the heat receiving member. According to this, the contact distance of the contact part of the said heat receiving member with respect to the said running thread | yarn can be ensured largely.

  The above-described yarn cooling is further performed by the following method. That is, the heat receiving member is cooled by forming a cooling flow in the heat receiving member. According to this, the cooling performance of the yarn is further improved.

Schematic diagram of the entire drawing false twisting machine according to the first embodiment of the present invention. The perspective view of the yarn cooling device which concerns on 1st embodiment of this invention. Sectional drawing of the yarn cooling device which concerns on 1st embodiment of this invention. It is a figure similar to FIG. 2, Comprising: The perspective view of the yarn cooling device which concerns on 2nd embodiment of this invention It is a figure similar to FIG. 2, Comprising: The perspective view of the yarn cooling device which concerns on 3rd embodiment of this invention

  Hereinafter, a first embodiment 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 (textile machine) includes a yarn feeding unit 102 that supplies the yarn Y from the yarn feeding package 101, and a drawing false twisting with respect to the yarn Y supplied from the yarn feeding unit 102. A yarn processing unit 103 that performs processing, 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 weights 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 is arranged in order along the running direction of the yarn Y, the first feed roller 108, the primary heater 109 (yarn heating device), the cooler 110 (yarn cooling device), and the twisting device 111. 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. Between the first feed roller 108 and the primary heater 109, a yarn guide 118 for guiding the yarn Y sent from the first feed roller 108 to the primary heater 109 is provided.

  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 in a substantially straight line in a substantially horizontal direction. 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. Since 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”, the drawing false twisting machine 100 according to this embodiment is a T type. It is called.

  As shown in FIG. 1, the cooler 110 according to the present embodiment cools the yarn Y by bringing the traveling yarn Y into contact with the cylindrical body 1 (heat receiving member) made of stainless steel. Composed. Hereinafter, the configuration of the cooler 110 will be described in detail. FIG. 2 is a perspective view of the yarn cooling device according to the first embodiment of the present invention. FIG. 3 is a cross-sectional view of the yarn cooling device according to the first embodiment of the present invention.

  As shown in FIGS. 2 and 3, the cooler 110 according to this embodiment includes a cylindrical body 1 having a circular cross section and an electric motor 2 (rotational drive) that rotationally drives the cylindrical body 1 about its axis. Means) as a main configuration.

  The cylindrical body 1 is rotatably supported via an L-shaped stay 3 with respect to a body frame (not shown) of the drawing false twisting machine 100. Specifically, as shown in FIG. 3, the hollow shaft 4 is non-rotatably supported by the L-shaped stay 3, and a bush 5 is provided on the outer peripheral side of the hollow shaft 4. On the other hand, a flange 6 is fitted into one longitudinal end portion of the cylindrical body 1, and a cylindrical inner cylindrical portion 7 extending in parallel with the longitudinal direction of the cylindrical body 1 from the inner peripheral end portion of the flange 6 is the bush 5. Thus, the cylindrical body 1 is supported rotatably on the above-described machine body frame via the L-shaped stay 3. A similar support structure is adopted for the other longitudinal end of the cylindrical body 1.

  A first gear 8 is provided at the axial end portion of the inner cylinder portion 7 with a slight gap from the hollow shaft 4. A second gear 9 that meshes with the first gear 8 is provided on the output shaft 2a of the electric motor 2 supported by the L-shaped stay 3 by a method not shown. With this configuration, the output shaft 2a of the electric motor 2 rotates in a predetermined direction at a predetermined rotational speed, so that the power of the electric motor 2 is supplied to the second gear 9, the first gear 8, the inner cylinder 7, It is transmitted to the cylindrical body 1 through the flange 6 in order. In short, the electric motor 2 rotates the cylindrical body 1 about its axis.

  In addition, a blower mechanism 12 (cooling flow generating means) including a fan 10 and a fan motor 11 for rotating the fan 10 is accommodated in one longitudinal end portion of the cylindrical body 1. . The fan motor 11 is supported inside the cylindrical body 1 by a hollow shaft 4 fixedly supported by an L-shaped stay 3, and an electric wire 13 (see FIG. 2) wired in the hollow shaft 4. The fan 10 is rotated by being driven by the supplied electric power. 3, the air flow R formed by the blower mechanism 12 is provided with the blower mechanism 12 provided in the cylindrical space 1 at one end in the longitudinal direction of the cylindrical body 1. To the other end in the longitudinal direction of the cylindrical body 1. A large number of small windows (not shown) are formed in the flange 6 so as not to hinder the formation of the air flow R in the internal space Q.

  Incidentally, as shown in FIG. 2, the cooler 110 according to the present embodiment includes yarn guides 110 a and 110 b for guiding the traveling yarn Y to the cylindrical body 1. A yarn guide 110 a disposed on the upstream side of the traveling yarn Y has a substantially U-shaped notch groove and is supported by the L-shaped stay 3. Similarly, the yarn guide 110 b disposed on the downstream side of the traveling yarn Y also has a substantially U-shaped notch groove and is supported by the L-shaped stay 3. When the thread guides 110a and 110b are viewed along the axial direction of the cylindrical body 1, the thread guides 110a and 110b appear to overlap in the present embodiment.

  Next, the operation of the cooler 110 according to the present embodiment will be described with reference to FIGS.

  That is, in order to set the yarn Y in the cooler 110, while the cylindrical body 1 is rotated by the electric motor 2, the yarn Y is sucked and held by the yarn hooking gun (suction device), and the supply shown in FIG. The yarn Y drawn out from the yarn portion 102 is threaded around the thread guide 110a shown in FIG. 2, and then wound around the outer peripheral surface of the cylindrical body 1 in a spiral manner, and then threaded around the thread guide 110b. Then, it is set in the twisting device 111 shown in FIG.

  Next, the feeding of the yarn Y by the first feed roller 108 or the like is started, and further, the air blowing mechanism 12 shown in FIG. 3 is driven to form an air flow R in the internal space Q of the cylindrical body 1. Begin to cool body 1 from the inside. In this state, the yarn Y exchanges heat with the cylindrical body 1 by running while contacting the outer peripheral surface of the stainless steel cylindrical body 1 as shown in FIG. As a result, the yarn Y is cooled so as to change from 150 ° C. to 60 ° C., for example, from the yarn guide 110a to the yarn guide 110b. On the other hand, the contact portion of the cylindrical body 1 with respect to the traveling yarn Y is locally heated by receiving heat from the yarn Y. However, in the present embodiment, the yarn path of the yarn Y traveling on the outer peripheral surface of the cylindrical body 1 is held by the yarn guides 110a and 110b, while the cylindrical body 1 is indicated by a thick arrow in FIG. Therefore, the yarn Y is cooled while shifting the contact portion of the cylindrical body 1 with the traveling yarn Y on the cylindrical body 1. Accordingly, since the yarn Y travels so as to avoid a portion of the cylindrical body 1 that is locally hot, high cooling performance is exhibited.

(Summary)
(Claim 1)
As described above, in the above-described embodiment, the cooler 110 that cools the yarn Y by bringing the traveling yarn Y into contact with the cylindrical body 1 is configured as follows. That is, the yarn Y is cooled while the contact portion of the cylindrical body 1 with the traveling yarn Y is shifted on the cylindrical body 1. According to the above configuration, the yarn Y travels so as to avoid a locally high temperature portion of the cylindrical body 1, so that the cooling performance of the cooler 110 is improved.

  In the above embodiment, the heat receiving member has a circular cross section. However, if the configuration in which the yarn Y is cooled while shifting the contact portion of the heat receiving member with the traveling yarn Y on the heat receiving member can be realized, The heat receiving member is not limited to a heat receiving member having a shape, and may be a heat receiving member having another cross-sectional shape. An example of the heat receiving member having another cross-sectional shape is a flat plate.

  In the above embodiment, the cylindrical body 1 is rotated while the yarn path of the yarn Y is held by the thread guides 110a and 110b. In addition to or in place of this, the cylindrical body 1 is rotated. The thread guides 110a and 110b can be moved while being fixed. That is, for example, in FIG. 2, the yarn guides 110 a and 110 b are reciprocated along the circumferential direction of the cylindrical body 1.

(Claim 2)
The cooler 110 is further configured as follows. That is, the heat receiving member is formed in a circular cross section. An electric motor 2 for rotating the heat receiving member around its axis is provided. According to the above configuration, the contact portion of the heat receiving member with respect to the traveling yarn Y can be shifted on the heat receiving member with a simple configuration.

  Note that the heat receiving member having a circular cross section includes not only the cylindrical body 1 which is a cylindrical heat receiving member but also a heat receiving member having a frustoconical shape, for example. Moreover, the rotation speed of the cylindrical body 1 (for example, diameter 20-80 mm) is arbitrary, for example, is about 1-10 rpm.

(Claim 3)
The cooler 110 is further configured as follows. That is, the air blowing mechanism 12 for forming the air flow R in the internal space Q of the cylindrical body 1 is provided. According to the above configuration, the cooling performance of the cooler 110 is further improved.

(Claim 4)
The cooler 110 is further configured as follows. That is, the air blowing mechanism 12 was accommodated inside the cylindrical body 1. According to the above configuration, the cooler 110 provided with the blower mechanism 12 can be configured in a compact and compact manner.

(Claim 6)
Further, since the cooler 110 is excellent in cooling performance, the cooler 110 itself can be made compact accordingly. Therefore, the drawing false twisting machine 100 including the cooler 110 can be made compact. In the above embodiment, the drawing false twisting machine 100 is taken up as a textile machine. However, the invention is not limited to this, and the invention of the present application can be applied to other types of textile machines without any problem.

  Next, a second embodiment of the present invention will be described. FIG. 4 is a view similar to FIG. 2 and is a perspective view of the yarn cooling device according to the second embodiment of the present invention. Hereinafter, the present embodiment will be described mainly with respect to differences from the first embodiment, and overlapping descriptions will be omitted as appropriate.

  That is, in the first embodiment, each of the yarn guides 110a and 110b is formed so as to guide only one yarn Y with respect to the cylindrical body 1. Instead, in this embodiment, FIG. As shown in FIG. 2, the yarn guides 110a and 110b are each provided with two substantially U-shaped notches so that the two yarns Y can be guided simultaneously with respect to the cylindrical body 1. A groove may be formed.

  In this embodiment, the yarn paths of the two yarns Y guided to the outer peripheral surface of the cylindrical body 1 by the thread guides 110 a and 110 b draw an S-wound spiral on the outer peripheral surface of the cylindrical body 1. In other words, the two running yarns Y are spirally wound around the outer peripheral surface of the cylindrical body 1 in the same direction.

(Claim 5)
As described above, the cooler 110 is provided with the yarn guides 110 a and 110 b for guiding the traveling yarn Y to the cylindrical body 1. The yarn guides 110a and 110b are formed so as to be able to guide two traveling yarns Y to the cylindrical body 1 at the same time. By forming the yarn guides 110a and 110b in this way, when it is necessary to install a plurality of coolers 110, the required number of coolers 110 can be halved. In the same way, if a necessary number of substantially U-shaped notch grooves are provided in the yarn guide 110a and the yarn guide 110b, for example, three or more running yarns Y are formed in the cylindrical body 1. You can guide them.

  The yarn guide 110a according to the above embodiment has two substantially U-shaped notch grooves. Instead, the yarn guide 110a has a yarn guide portion having a substantially U-shaped notch groove. It may be combined. In short, the yarn guide 110a may be an integral type or a separate type.

  Next, a third embodiment of the present invention will be described. FIG. 5 is a view similar to FIG. 2, and is a perspective view of a yarn cooling device according to the third embodiment of the present invention. Hereinafter, the present embodiment will be described mainly with respect to differences from the second embodiment, and overlapping descriptions will be omitted as appropriate.

  In the second embodiment, each yarn Y is set in the cooler 110 such that the two yarns Y traveling along the outer circumferential surface of the cylindrical body 1 draw a spiral in the same direction. did. On the other hand, in the present embodiment, each yarn Y is guided to the outer peripheral surface of the cylindrical body 1 so that the yarn paths of the two traveling yarns Y draw spirals in different directions. Set to. In the present embodiment, each yarn Y draws a spiral of about 180 degrees when viewed from the axial direction of the cylindrical body 1. For this reason, the installation position of the thread guide 110b is slightly different from that of the second embodiment.

  The reason why the yarn paths of the two traveling yarns Y draw a spiral in different directions is as follows. That is, when the yarns Y having different twist directions are cooled, there is a possibility that the adverse effects caused by the differences in the twist directions can be offset.

  The preferred embodiments of the present invention have been described above, but each of the above embodiments can be implemented as follows.

  That is, although the drawing false twisting machine 100 shown in FIG. 1 is a so-called T type, it may be a so-called V type or M type instead.

DESCRIPTION OF SYMBOLS 1 Cylindrical body 2 Electric motor 12 Blower mechanism 100 Stretch false twister 110 Cooler

Claims (10)

A yarn cooling device that cools the yarn by bringing the traveling yarn into contact with the heat receiving member,
The yarn is cooled while shifting the contact portion of the heat receiving member with respect to the traveling yarn on the heat receiving member.
A yarn cooling device characterized by that. The yarn cooling device according to claim 1,
The heat receiving member is formed in a circular cross section,
Provided with a rotation driving means for rotating the heat receiving member around its axis;
A yarn cooling device characterized by that. The yarn cooling device according to claim 2,
Forming a cooling channel in the heat receiving member;
A cooling flow generating means for forming a cooling flow in the cooling flow path is provided.
A yarn cooling device characterized by that. The yarn cooling device according to claim 3,
The cooling flow generating means is housed inside the heat receiving member.
A yarn cooling device characterized by that. The yarn cooling device according to any one of claims 1 to 4,
While providing a yarn guide for guiding the traveling yarn to the heat receiving member,
This yarn guide is formed such that two or more of the traveling yarns can be guided simultaneously with respect to the heat receiving member.
A yarn cooling device characterized by that. Comprising the yarn cooling device according to any one of claims 1 to 5,
A textile machine characterized by that. A yarn cooling method for cooling the yarn by bringing the traveling yarn into contact with the heat receiving member,
Cooling the yarn while shifting the contact portion of the heat receiving member to the traveling yarn on the heat receiving member;
A yarn cooling method characterized by the above. The yarn cooling method according to claim 7,
The heat receiving member is formed in a circular cross section,
Rotating the heat receiving member around an axis;
A yarn cooling method characterized by the above. The yarn cooling method according to claim 8,
Bringing the traveling yarn into spiral contact with the outer peripheral surface of the heat receiving member;
A yarn cooling method characterized by the above. The yarn cooling method according to claim 8 or 9, wherein
Cooling the heat receiving member by forming a cooling flow in the heat receiving member;
A yarn cooling method characterized by the above.

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