JP5735849B2 - Yarn heating device - Google Patents

Description

  The present invention relates to a yarn heating device for heating a yarn.

  Conventionally, in the field of textile machinery, for example, when a yarn is heated and stretched, a yarn heating device that heats the yarn is provided. As described above, in the yarn heating device of Patent Document 1 as a device for performing heat treatment on the yarn, the yarn is wound a plurality of times between the heating roller and the separation roller, and the heat generated from the heating roller. The yarn wound around this roller is heated. Further, the yarn heating device is provided with a heat radiation plate having a flat surface facing the heating roller so as to cover the outer peripheral surface around which the yarn of the heating roller is wound. The yarn is also heated from the side opposite to the heating roller by the radiant heat reflected by the heat radiating plate to increase the heating efficiency.

Japanese Patent Laid-Open No. 7-278990 (FIG. 1)

  However, like the yarn heating device of Patent Document 1, a planar heat radiation plate is provided on the heating roller, and the yarn wound around the heating roller is further added to the direct conduction by the heating roller. Even when heated by radiation, there has been a problem that the heating efficiency is lowered due to the influence of the accompanying airflow due to the high-speed running of the yarn.

  Then, the objective of this invention is providing the yarn heating apparatus which can fully heat a yarn by further raising the heating efficiency of a yarn.

The yarn heating device according to the present invention includes a heating roller that feeds a yarn while heating the yarn, and a first heating acceleration provided to be opposed to the outer peripheral surface around which at least the yarn of the heating roller is wound. And an inner surface of the first heating promoting member that faces the heating roller has a concavo-convex shape integrated along a circumferential direction of the heating roller, and the concavo-convex concave portion , on the side facing said heating roller of the first heating promoting member, a plurality of spaces divided along the circumferential direction of the heating roller is formed.
According to another aspect, the yarn heating apparatus of the present invention is provided with a heating roller that feeds the yarn while heating the yarn, and an outer peripheral surface around which at least the yarn is wound. A first heating promoting member, and an inner surface of the first heating promoting member facing the heating roller is bent in an arc shape in a circumferential direction of the heating roller, and the plate member Are formed on the inner surface of the heating roller by brackets fixed at a predetermined interval in the circumferential direction of the heating roller, and the concave portion of the uneven shape causes the first heating promoting member to face the heating roller. A plurality of spaces divided along the circumferential direction of the heating roller are formed.

  According to the yarn heating device of the present invention, when the yarn wound around the heating roller travels, an accompanying flow along the circumferential direction of the heating roller is generated around the yarn. By forming a plurality of spaces along the circumferential direction of the heating roller on the surface facing the heating roller, a turbulent flow is generated at the outer periphery of the heating roller and wound around the heating roller. Heat transfer to the yarn can be promoted. Moreover, since the opposing surface of the 1st heating promotion member has covered the heating roller, the radiant heat thermally radiated from the heating roller can be reflected in an opposing surface, and the yarn wound around the heating roller can be heated. . From these, the heating efficiency of the yarn wound around the heating roller can be increased, and the yarn can be sufficiently heated.

  Moreover, it is preferable that the said opposing surface of a said 1st heating promotion member is carrying out the waveform shape.

  According to this, both the heating by the transmission of the yarn and the heating by the radiation can be efficiently performed by forming the concave portion that defines the space in the waveform.

  Furthermore, it is preferable that the facing surface of the first heating promoting member is far-red coated with a material that emits far-infrared rays having a peak wavelength within a range of a heat absorption wavelength determined by the material of the yarn.

  According to this, the facing surface of the first heating promoting member is coated with a material that emits far infrared rays (electromagnetic waves) having a peak wavelength within the range of the heat absorption wavelength of the yarn wound around the heating roller. . In this state, when the opposite surface is heated by the heat generated by the heating roller, far infrared rays having a wavelength that is easily absorbed by the yarn are radiated from the opposite surface, thereby increasing the heating efficiency of the yarn by radiation. it can.

In addition, the first heating promoting member includes a circumferential part of the outer peripheral surface of the heating roller where the yarn enters the heating roller, and a circumferential part of the heating roller from which the yarn exits. except, it is preferably provided along the outer peripheral surface of the heating roller.

  According to this, the heat generated from the heating roller is difficult to escape, and the heat retention efficiency of the heating roller can be increased.

The heating roller further includes a heat insulation box in which the heating roller is accommodated, and a plate member is attached to the heat insulation box so as to be opposed to at least an outer peripheral surface around which the yarn is wound. Preferably, the plate member is the first heating promoting member, and the plurality of spaces are divided and formed on the surface of the plate member facing the heating roller.

  In the case of a plate member, for example, a plurality of spaces partitioned along the circumferential direction of the heating roller can be easily formed by alternately arranging the concave and convex portions by bending or forming concave portions with a press. And the heating efficiency of the yarn wound around the heating roller can be increased simply by attaching a plate member that can easily form a plurality of spaces thus divided to a heat insulating box in which the heating roller is conventionally accommodated. be able to.

Further, the heating roller further comprises a thermal insulation box which is accommodated, the first heating acceleration member constitutes a part of the inner wall surface of the thermal insulation box, a portion of the inner wall surface of the thermal insulation box, the heating The roller may face the outer circumferential surface around which the yarn is wound with a gap, and the plurality of spaces may be divided and formed on the facing surface side.

  According to this, the volume of the heat insulation space formed by the inner surface of the heat insulation box is reduced, and the heat insulation efficiency in the heat insulation box can be increased.

  Further, a plurality of windings are wound around the heating roller at a predetermined pitch, and at least the yarn of the separation roller is wound around the separation roller that heats the yarn like the heating roller. A second heating acceleration member provided opposite to the outer circumferential surface with a gap, and a circumferential direction of the separation roller is provided on a surface of the second heating acceleration member facing the separation roller. It is preferable that a plurality of spaces divided along the line are formed.

  According to this, by providing the second heating promotion member for the separation roller, the heating efficiency of the yarn wound around the separation roller can be increased as in the case where the first heating promotion member is provided for the heating roller. Can be raised.

  When the yarn wound around the heating roller travels, an accompanying flow along the circumferential direction of the heating roller is generated around the yarn, but the heating roller on the opposite surface side of the first heating promoting member to the heating roller. By forming a plurality of spaces along the circumferential direction, turbulent flow is generated at the outer peripheral portion of the heating roller, which promotes heat transfer to the yarn wound around the heating roller. be able to. Moreover, since the opposing surface of the 1st heating promotion member has covered the heating roller, the radiant heat thermally radiated from the heating roller can be reflected in an opposing surface, and the yarn wound around the heating roller can be heated. . From these, the heating efficiency of the yarn wound around the heating roller can be increased, and the yarn can be sufficiently heated.

It is a schematic block diagram of the thread | yarn manufacturing apparatus which concerns on this embodiment. It is a perspective view of the roller unit of FIG. It is a side view of the godet roller in the heat insulation box. It is a top view of a godet roller explaining promotion of heat transfer. It is a top view of the godet roller explaining radiation. It is a top view of the roller unit in the modification 1. FIG. 10 is a plan view of a roller unit in Modification 2. FIG. 10 is a plan view of a roller unit in Modification 3. It is a top view of the roller unit in the modification 4. FIG. 10 is a plan view of a roller unit in Modification 5. It is the perspective view seen from the inner peripheral surface side of the plate member in the modification 5. It is a top view of the roller unit in the modification 6. FIG. 10 is a plan view of a roller unit in Modification 7. It is the perspective view seen from the inner peripheral surface side of the plate member in the modification 7.

  Hereinafter, preferred embodiments of the present invention will be described. FIG. 1 is a schematic configuration diagram of a yarn manufacturing apparatus according to the present embodiment. As shown in FIG. 1, the yarn manufacturing apparatus 1 includes a spinning machine 2, two roller units 3, 4 (yarn heating device), a winder 5, and the like.

  The spinning machine 2 spins a plurality of (for example, about 24 to 32) yarns Y in a state of being arranged in the direction perpendicular to the paper surface of FIG. The roller units 3 and 4 extend a plurality of yarns Y spun from the spinning machine 2 while heating. The winder 5 winds a plurality of yarns Y stretched by the roller units 3 and 4 onto a bobbin (not shown).

  In addition, since the structure of the spinning machine 2 and the winding machine 5 is the same as the conventional structure among the components of the yarn manufacturing apparatus 1 described above, detailed description thereof will be omitted, and the roller units 3 and 4 will be described below. This will be described in detail.

  The roller units 3 and 4 are disposed below the spinning machine 2. FIG. 2 is a perspective view of the roller unit of FIG. FIG. 3 is a side view of the godet roller in the heat insulation box. In FIG. 2, the roller unit 4 on the downstream side in the running direction of the yarn Y among the two roller units 3 and 4 is illustrated. Since the roller units 3 and 4 have the same structure, the structure of the roller unit 4 will be described below by taking the roller unit 4 as an example, and only the difference between the roller unit 3 and the roller unit 4 will be described. And in order to make it easy to understand which of the roller units 3 and 4 is being explained, the components of the roller unit 3 are represented by a symbol (for example, a dash attached to the component of the roller unit 4). A description will be given with a godet roller 11 ′, a separate roller 12 ′, and the like.

  As shown in FIGS. 1 to 3, the roller unit 4 includes a godet roller 11, a separate roller 12, corrugated plates 30 and 31 (first and second heating promoting members), and a heat insulating box 13 for housing them. Have. The heat insulation box 13 is a substantially rectangular parallelepiped box made of a heat insulating material. The heat retaining box 13 is provided with a door 13a that can be opened and closed.

  A godet roller 11 and a separate roller 12 are accommodated in the heat insulating box 13. The godet roller 11 is a drive roller that is disposed on the side opposite to the door 13a of the heat retaining box 13 and is cantilevered by a frame (not shown), and is sent from the roller unit 3 on the upstream side in the running direction (lower left in FIG. 1). Take a plurality of yarns Y. And the godet roller 11 will rotate, if it drives with the drive motor 37 (refer FIG. 3), and will send the wound several yarn Y to the running direction downstream.

  The separate roller 12 is disposed below the godet roller 11, and is a driven roller that is cantilevered on a frame (not shown) disposed on the side opposite to the door 13 a of the heat retaining box 13, similar to the godet roller 11. The plurality of yarns Y taken up by the godet roller 11 are wound around the godet roller 11 and the separate roller 12 at a predetermined pitch so as not to overlap each other, and are wound a plurality of times. Note that the separation roller 12 may be a driving roller, similar to the godet roller 11.

  Then, when the godet roller 11 rotates and the plurality of yarns Y travel, the separation roller 12 around which the yarns Y are wound also rotates. The plurality of yarns Y sent from the separation roller 12 are sent to the winder 5 on the downstream side in the running direction (downward in FIG. 1).

  Further, the godet roller 11 is a heating roller having a heater 15 (see FIG. 2) therein, and the yarn Y is heated while being wound and fed between the godet roller 11 and the separation roller 12. And the godet roller 11 and the separation roller 12 are arrange | positioned in the heat insulation box 13, and the heat | fever generated by the heater 15 is prevented from escaping outside from the heat insulation box 13 by closing the door 13a.

  In the bottom wall 23 of the heat insulation box 13, two slits 24a and 24b extending substantially parallel to the direction in which the plurality of yarns Y are arranged are formed on both sides of the rollers 11 and 12 with respect to the horizontal direction in FIG. Has been. The slit 24a is open at the end on the door 13a side (opening / closing opening side of the heat insulation box 13) in order to insert the yarn Y from the front surface when threading the rollers 11 and 12. The slit 24 a serves as an entrance for putting the yarn Y into the heat insulation box 13 when winding the yarn around the winder 5.

  Similarly to the slit 24a, the slit 24b is open at the end on the door 13a side in order to insert the yarn Y from the front when threading onto the rollers 11 and 12, but the length is longer than the slit 24a. It is getting shorter. The slit 24 b serves as an outlet for taking out the yarn Y from the inside of the heat insulating box 13 when winding the yarn around the winder 5.

  The front openings of the slits 24a and 24b are closed by the door 13a when the door 13a is closed.

  The corrugated plate 30 is formed by folding a plate member made of stainless steel having a mirror-finished surface, and forming a concave portion and a convex portion by continuously arranging triangular peaks of two sides, above the godet roller 11. It arrange | positions and is being fixed to the heat insulation box 13 through the supporting member 32. FIG. The corrugated plate 30 is opposed to the outer peripheral surface (substantially the upper half of the godet roller 11) around which the yarn Y of the godet roller 11 is wound with a gap in which the yarn Y can travel. As shown in FIG. A plurality of spaces 35 (see FIG. 4) defined by concave portions partitioned along the circumferential direction of the godet roller 11 are formed on the surface (inner circumferential surface) side of the corrugated plate 30 facing the godet roller 11. Yes.

  Further, the length of the corrugated plate 30 along the axial direction of the godet roller 11 is shorter than the axial length of the godet roller 11, and the godet roller 11 protrudes from the corrugated plate 30 toward the opening / closing port of the heat insulating box 13. 25. Further, the facing surface 30a of the corrugated plate 30 facing the godet roller 11 is coated with far red (for example, ceramic coating).

  Similar to the corrugated sheet 30, the corrugated sheet 31 is formed by folding a plate member made of stainless steel having a mirror-finished surface, and forming concave and convex parts by continuously arranging triangular peaks of two sides. It is arranged below the godet roller 11 and is fixed to the heat insulation box 13 via a support member (not shown). The corrugated sheet 31 is between the godet roller 11 and the separating roller 12, and has a clearance between the outer peripheral surface (the lower part of the godet roller 11) around which the yarn Y of the godet roller 11 is not wound and the yarn Y can travel. The concavities and convexities are alternately arranged along the circumferential direction of the godet roller 11. A plurality of spaces defined by concave portions partitioned along the circumferential direction of the separation roller 12 are also formed on the surface (inner circumferential surface) side of the corrugated plate 31 facing the separation roller 12.

  The length of the corrugated sheet 31 along the axial direction of the godet roller 11 is the same as the axial length of the godet roller 11. Further, the facing surface 31a of the corrugated plate 31 facing the godet roller 11 is coated with far red (for example, ceramic coating). In this way, the godet roller 11 has a space around the yarn Y that first enters the godet roller 11, a space around the yarn Y that comes out last, and a space in which the yarn Y moves in the process of applying the yarn Y. Except for the space over which the yarn Y is bridged to the separate roller 12, the entire circumference is covered with corrugated plates 30,31.

  The roller unit 3 is arranged in a posture that is upside down with respect to the roller unit 4. The roller units 3 and 4 have different rotational speeds of the godet roller 11 as will be described later.

  In the yarn manufacturing apparatus 1 having the above-described configuration, first, the plurality of yarns Y spun from the spinning machine 2 are end portions on the side opposite to the opening of the slit 24a ′ (the back side in FIG. 1). It passes through the vicinity and enters the heat insulating box 13 ′ and is taken up by the godet roller 11 ′ of the roller unit 3.

  Then, the yarn Y taken up by the godet roller 11 ′ in the heat insulation box 13 ′ is wound a plurality of times between the godet roller 11 ′ and the separate roller 12 ′, and then separated from the godet roller 11 ′ and slit 24b ′. Through the vicinity of the opening of the roller unit 4, exits the heat insulating box 13 ′, enters the heat insulating box 13 through the vicinity of the end opposite to the opening of the slit 24 a (the back side in FIG. 1), and the godet roller of the roller unit 4. 11 is sent.

  Thereafter, the yarn Y taken up by the godet roller 11 in the heat insulation box 13 is wound a plurality of times between the godet roller 11 and the separation roller 12, and then leaves the godet roller 11 and passes through the vicinity of the opening of the slit 24b. It goes out of the heat insulation box 13 and is sent to the winder 5.

  Thereby, the yarn Y travels from the spinning machine 2 toward the winder 5 at a speed of, for example, about 4000 to 6000 m / min. At this time, the yarn Y is heated while being fed between the rollers 11 and 12 and between the rollers 11 'and 12'. Further, the godet roller 11 of the roller unit 4 has a higher rotational speed than the godet roller 11 ′ of the roller unit 3, and the heated yarn Y is rotated between the godet roller 11 and the godet roller 11 ′. The film is stretched with a force corresponding to the difference.

  By the way, the yarn Y wound around the godet roller 11 in the heat insulating box 13 is directly heated by conduction from the outer peripheral surface of the godet roller 11 heated by the heater 15.

  Further, when the yarn Y wound around the godet roller 11 travels, an accompanying flow 33 along the circumferential direction of the godet roller 11 is generated around the yarn Y as shown in FIG. At this time, the corrugated plate 30 is provided opposite to the outer peripheral surface on which the yarn Y of the godet roller 11 is wound, and the corrugated plate 30 is continuously arranged with irregularities alternately arranged along the circumferential direction of the godet roller 11. Because of the waveform, this accompanying flow 33 collides with the concave wall surface of the corrugated plate 30 (the wall surface defining the space 35), and a turbulent flow 34 is generated at the outer periphery of the godet roller 11.

  Then, the turbulent flow 34 increases the relative speed with the yarn Y and promotes convective heat transfer, so that the heat transfer to the yarn Y wound around the godet roller 11 can be promoted. Moreover, since a plurality of turbulent flows 34 are continuously generated along the circumferential direction of the godet roller 11, it is possible to continuously promote the transfer of heat to the yarn Y that is wound around the godet roller 11 and travels.

  Further, since the facing surface 30a of the corrugated plate 30 covers the godet roller 11, as shown in FIG. 5, the electromagnetic wave 36 heated by the godet roller 11 and thermally radiated from the godet roller 11 is reflected, as shown in FIG. The yarn Y wound around the godet roller 11 by radiation can be heated, and heat radiation from the surface of the godet roller 11 can be reduced.

  At this time, although depending on the type of the yarn Y, in general, the range of the heat absorption wavelength of the yarn is within the wavelength range of far infrared rays belonging to a partial range of electromagnetic waves. For example, when the yarn Y is PET, the peak wavelength of the heat absorption wavelength is about 10 μm. And it is generally said that the wavelength of far infrared rays is about 4 to 1000 μm.

  Therefore, when the facing surface 30a is heated by the heat generated by the godet roller 11 by coating the facing surface 30a of the corrugated plate 30 with a ceramic material that particularly emits electromagnetic waves close to the peak wavelength of this PET, From 30a, an electromagnetic wave having a wavelength close to the heat absorption wavelength of the yarn Y is radiated. The electromagnetic wave having this wavelength is easily absorbed by the yarn Y, and the heating efficiency of the yarn Y by radiation can be increased. That is, according to the type of the yarn Y, the ceramic material coated on the facing surface 30a may be changed so that the heat absorption wavelength of the yarn and the wavelength emitted by the ceramic are close to each other.

  Furthermore, since the corrugated sheet 30 is a triangular recess having two sides, both the heating by the transmission of the yarn Y and the heating by radiation can be efficiently performed.

  Further, since the corrugated plates 30 and 31 cover the entire circumference of the godet roller 11 except for the space over which the yarn Y is bridged from the godet roller 11 to the separate roller 12, heat generated from the godet roller 11 becomes difficult to escape, The heat retention efficiency of the godet roller 11 can be increased, and the power consumption of the heater 15 necessary for heating the yarn Y to an appropriate temperature can be reduced. From the above, the heating efficiency of the yarn Y wound around the godet roller 11 can be increased, and the yarn Y can be sufficiently heated. Further, the godet roller 11 can be reduced in size by reducing the number of windings of the yarn Y around the godet roller 11.

  Furthermore, since the corrugated plates 30 and 31 are plate members, it is possible to easily form a shape in which irregularities are alternately arranged by simply bending. And the heating efficiency of the thread | yarn Y wound around the godet roller 11 can be raised only by attaching the plate member which can be formed in this way to the heat insulation box 13 in which the godet roller 11 was accommodated conventionally.

  In general, when the godet roller 11 rotates and the yarn Y travels, an accompanying flow is generated around the yarn Y. Except for the space over which the yarn Y is bridged from the godet roller 11 to the separate roller 12, Since the corrugated plates 30 and 31 cover the entire circumference of the godet roller 11, the accompanying flow is generated only between the corrugated plates 30 and 31 and the godet roller 11 and is generated outside the corrugated plates 30 and 31. Can be suppressed. As described above, the corrugated plates 30 and 31 function as windproof plates that suppress the occurrence of the accompanying flow in addition to increasing the heating efficiency of the yarn Y. Accordingly, the yarn quality of the traveling yarn Y can be suppressed and the yarn quality can be improved.

  Moreover, since the godet roller 11 has the protrusion part 25 which faced the opening / closing opening of the heat insulation box 13 rather than the corrugated plate 30, when performing threading to the godet roller 11 and the separate roller 12, the door 13a is opened. The inside of the heat insulating box 13 can be exposed and can be easily threaded on the protruding portion 25 protruding from the corrugated plate 30 of the godet roller 11. Note that the threading workability can be improved by widening the gap between the corrugated plate 30, the godet roller 11 and the separation roller 12 on the threading operation surface side (front surface). In this case, the corrugated plate 30 can be provided throughout the godet roller 11 without providing the protruding portion 25.

  Furthermore, if the plate member which is the corrugated plate 30 is not a shape in which unevenness is arranged, but is a planar shape along the outer peripheral surface of the godet roller 11, if the plate member is too close to the godet roller 11, the godet roller 11 is rotated. When the yarn Y wound around the godet roller 11 is caused to travel, a negative pressure is generated between the plate member and the godet roller 11, and the yarn Y is attracted to the opposite surface of the plate member. There is a risk that proper tension is not applied to the strip Y.

  Therefore, in this embodiment, since the plate member is the corrugated plate 30 in which the unevenness is arranged, a turbulent flow 34 is generated between the plate member and the godet roller 11 instead of the laminar flow. It becomes difficult for the yarn Y to be attracted to the surface 30a, and an appropriate tension can be applied to the yarn Y.

  Next, modified examples in which various changes are made to the present embodiment will be described. However, components having the same configuration as in the present embodiment are denoted by the same reference numerals, and description thereof is omitted as appropriate. Hereinafter, when an example in which the configuration of the roller unit 4 is changed is described, it is understood that the same change can be made to the configuration of the roller unit 3.

  In this embodiment, since the separating roller 12 is not a heating roller provided with a heater, no corrugated plate is disposed for the separating roller 12. However, as shown in FIG. In the case of the heating roller provided with the corrugated plate 41 and the yarn Y, the separating roller 12 is opposed to the outer peripheral surface around which the yarn Y is wound with a gap therebetween. The corrugated plate 42 may be provided facing the outer peripheral surface with a gap (Modification 1). In this case, similarly to the yarn Y wound around the godet roller 11 described above, the heating efficiency of the yarn Y wound around the separate roller 12 can be increased.

  Further, in the present embodiment, the corrugated plate 30 is a plate member and is attached to the heat insulating box 13, but as shown in FIG. 7, a part of the inner wall surface 63 a of the heat insulating box 63 is the yarn of the godet roller 11. The outer circumferential surface on which the strip Y is wound may be opposed to the outer circumferential surface with a gap, and the inner wall surface 63a may have an irregular shape in which irregularities are alternately arranged along the circumferential direction of the godet roller 11 (Modification 2). In this case, a plurality of spaces 65 divided along the circumferential direction of the godet roller 11 are formed between the inner wall surface 63 a and the godet roller 11. And it is preferable that the heat insulating material 64 is accommodated in the cavity between the inner wall surface and the outer wall surface of the heat insulation box 63. According to this, the volume of the heat insulation space formed by the inner surface of the heat insulation box 63 is reduced, and the heat insulation efficiency in the heat insulation box 63 can be increased.

  Further, in this embodiment, the yarn Y is wound a plurality of times between the godet roller 11 and the separation roller 12, but the yarn Y is less than 360 degrees only on the godet roller 11 without providing the separation roller 12. It is good also as one-sided.

  In the present embodiment, the facing surface 30a of the corrugated plate 30 is ceramic coated. However, the present invention is not limited to ceramic and may be far-red coated with various materials according to the type of the yarn Y.

  Further, in the present embodiment, the plate member covering the outer peripheral surface around which the yarn Y of the godet roller 11 is wound is the corrugated plate 30 in which triangular waves are continuously arranged along the circumferential direction of the godet roller 11. Any shape may be used as long as the unevenness is alternately arranged along the circumferential direction (Modification 3). For example, as shown in FIG. 8, the plate member 66 connects the plurality of rectangular recesses 67 having a right angle between the bottom wall and the side wall and the plurality of recesses 67 along the circumferential direction of the godet roller 11. An uneven shape in which a plurality of connecting portions 68 are alternately arranged may be used. In this case, a plurality of spaces 69 divided along the circumferential direction of the godet roller 11 are formed on the surface (inner peripheral surface) side of the plate member 66 facing the godet roller 11.

  In addition, in the present embodiment, the concave and convex shapes are arranged along the circumferential direction of the godet roller 11, and a plurality of spaces 35 divided along the circumferential direction of the godet roller 11 are formed. Any configuration may be employed as long as a plurality of spaces are divided along the line (Modifications 4, 5, and 6).

  (Modification 4) For example, as shown in FIG. 9, the plate member 70 has a planar shape and is bent in an arc shape along the circumferential direction of the godet roller 11. One side of the plurality of L-shaped brackets 71 is welded to the opposite surface. The plurality of brackets 71 have one side that is not welded extending toward the center of the godet roller 11 in the radial direction, and are spaced apart from each other in the circumferential direction of the godet roller 11. In this manner, a plurality of spaces 72 partitioned by the bracket 71 and partitioned along the circumferential direction of the godet roller 11 may be formed on the surface of the plate member 70 facing the godet roller 11.

  (Modification 5) For example, as shown in FIGS. 10 and 11, the plate member 76 is bent in an arc shape along the circumferential direction of the godet roller 11, for example, by pressing from the inner peripheral surface 77 side. A plurality of prismatic projections 78 that are recessed toward the radially outer side of the godet roller 11 are formed. The plurality of protrusions 78 have a triangular cross-section, and are arranged in a matrix form spaced apart along the axial direction of the godet roller 11 and spaced apart along the circumferential direction of the godet roller 11. In this manner, a plurality of spaces 79 that are partitioned along the circumferential direction of the godet roller 11 and defined by the recesses of the protrusions 78 may be formed on the inner peripheral surface 77 side of the plate member 76.

  (Modification 6) For example, as shown in FIG. 12, the plate member 80 is not a corrugated shape as in the above-described embodiment, but is formed by continuous triangular peaks with two oblique sides having different apexes. It has a saw-tooth shape. The short hypotenuse 80a of the two hypotenuses is arranged on the downstream side in the rotation direction of the godet roller 11 (clockwise direction in FIG. 12), and extends toward the rotation center of the godet roller 11. In this manner, a plurality of spaces 81 defined by the concave portions partitioned along the circumferential direction of the godet roller 11 may be formed on the inner peripheral surface side of the plate member 80. According to this, the accompanying flow along the circumferential direction of the godet roller 11 collides with the hypotenuse 80a, and a vortex is likely to occur in the space 81.

  Furthermore, in this embodiment, although formed with the linear convex part and the recessed part, it may be formed with a curved convex part and a recessed part (modification 7). For example, as shown in FIGS. 13 and 14, the plate member 85 is bent in an arc shape along the circumferential direction of the godet roller 11. For example, the diameter of the godet roller 11 is pressed by pressing from the inner peripheral surface 86 side. A plurality of curved protrusions 87 that are recessed outward in the direction are formed. The plurality of protrusions 87 have a curved cross section, and are arranged apart from each other along the axial direction of the godet roller 11 and arranged side by side along the circumferential direction of the godet roller 11. In this way, a plurality of spaces 88 that are partitioned along the circumferential direction of the godet roller 11 and defined by the recesses of the protrusions 87 may be formed on the inner peripheral surface 86 side of the plate member 85.

  In the present embodiment, the godet roller 11 and the separation roller 12 are accommodated in the heat insulation box 13, but the heat insulation box 13 may not be provided.

  Furthermore, in this embodiment, in addition to providing the corrugated plate 30 to the outer peripheral surface on which the yarn Y of the godet roller 11 is wound, the outer surface on which the yarn Y of the godet roller 11 is not wound is provided. In contrast, the corrugated plate 31 is provided, but the corrugated plate 31 may not be provided.

  In the present embodiment, the example in which the present invention is applied to a roller unit including a godet roller and a separate roller for stretching the yarn Y while being heated has been described. However, the present invention is not limited thereto, and the yarn is heated. It is also possible to apply the present invention to other yarn heating devices provided with a heating roller for feeding in the same manner.

DESCRIPTION OF SYMBOLS 1 Yarn manufacturing apparatus 3, 4 Roller unit 11 Godet roller 12 Separate roller 15 Heater 30, 31 Corrugated plate 30a, 31a Opposite surface Y Yarn

Claims (8)

A heating roller that feeds the yarn while heating,
A first heating promoting member provided to face at least a peripheral surface around which the yarn is wound around the heating roller, with a gap therebetween,
The inner surface of the first heating promoting member facing the heating roller has an uneven shape integrated along the circumferential direction of the heating roller,
A plurality of spaces partitioned along the circumferential direction of the heating roller are formed on the surface of the first heating promoting member facing the heating roller by the concave and convex portions. Strip heating device.   The yarn heating device according to claim 1, wherein the facing surface of the first heating promoting member has a corrugated shape.   The said opposing surface of the said 1st heating promotion member is far-red coated with the material which radiates | emits a far infrared ray which has a peak wavelength in the range of the heat absorption wavelength determined by the material of the said thread | yarn. The yarn heating apparatus according to 1 or 2. The first heating accelerating member excludes a part in a circumferential direction where the yarn enters the heating roller and a part in the circumferential direction where the yarn exits from the heating roller, of the outer peripheral surface of the heating roller. , yarn heating apparatus according to any one of claims 1 to 3, characterized in that provided along the outer peripheral surface of the heating roller. It further comprises a heat insulation box in which the heating roller is accommodated,
A plate member is attached to the heat retaining box so as to be opposed to the outer peripheral surface around which at least the yarn of the heating roller is wound with a gap therebetween,
The plate member is the first heating promotion member,
The yarn heating device according to any one of claims 1 to 4, wherein the plurality of spaces are divided and formed on a surface of the plate member facing the heating roller. It further comprises a heat insulation box in which the heating roller is accommodated,
The first heating promotion member constitutes a part of the inner wall surface of the heat insulation box,
A portion of the inner wall surface of the thermal insulation box faces spaced outer peripheral surface a gap in which the yarn is wound in the heating roller, said plurality of spaces are formed are divided into the facing side The yarn heating apparatus according to claim 2 or 3, wherein A separate roller that is wound a plurality of times at a predetermined pitch with the heating roller, and that heats the yarn in the same manner as the heating roller;
A second heating promoting member provided to face at least a peripheral surface around which the yarn is wound of the separate roller with a gap, and
The plurality of spaces partitioned along the circumferential direction of the separate roller are formed on the surface of the second heating promoting member facing the separate roller. The yarn heating apparatus according to item 1. A heating roller that feeds the yarn while heating,
  A first heating promoting member provided to face at least a peripheral surface around which the yarn is wound around the heating roller, with a gap therebetween,
  An inner surface facing the heating roller of the first heating promoting member is fixed to the inner surface of the plate member at a predetermined interval in the circumferential direction of the heating roller, and a plate member bent in an arc shape in the circumferential direction of the heating roller. It is a concavo-convex shape formed with the brackets made,
  A plurality of spaces partitioned along the circumferential direction of the heating roller are formed on the surface of the first heating promoting member facing the heating roller by the concave and convex portions. Strip heating device.

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