CN113249804A - Oil-imparting yarn guide and spinning traction machine - Google Patents
Oil-imparting yarn guide and spinning traction machine Download PDFInfo
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- CN113249804A CN113249804A CN202110109064.5A CN202110109064A CN113249804A CN 113249804 A CN113249804 A CN 113249804A CN 202110109064 A CN202110109064 A CN 202110109064A CN 113249804 A CN113249804 A CN 113249804A
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- yarn
- finish
- oil
- oil agent
- guide
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- 238000009987 spinning Methods 0.000 title claims abstract description 52
- 230000001105 regulatory effect Effects 0.000 claims abstract description 48
- 238000007599 discharging Methods 0.000 claims abstract description 23
- 238000011144 upstream manufacturing Methods 0.000 claims description 23
- 238000009825 accumulation Methods 0.000 abstract description 16
- 239000003795 chemical substances by application Substances 0.000 description 219
- 238000012360 testing method Methods 0.000 description 21
- 238000000926 separation method Methods 0.000 description 18
- 238000002955 isolation Methods 0.000 description 17
- 230000005484 gravity Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000011156 evaluation Methods 0.000 description 6
- 239000008041 oiling agent Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000012790 confirmation Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H71/00—Moistening, sizing, oiling, waxing, colouring or drying filamentary material as additional measures during package formation
- B65H71/007—Oiling, waxing by applying liquid during spooling
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/096—Humidity control, or oiling, of filaments, threads or the like, leaving the spinnerettes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/04—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments
- D06B3/045—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments in a tube or a groove
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
- B65H2701/313—Synthetic polymer threads
- B65H2701/3132—Synthetic polymer threads extruded from spinnerets
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The present invention relates to a finish applying yarn guide and a spinning draft machine, in which the unintended accumulation of finish not adhering to a yarn is suppressed. A finish applying yarn guide for applying a finish to a yarn traveling from above to below, comprising: a guide body having a flow path for allowing the oil to flow downward from above is formed. The flow path has: a yarn contact surface on which the yarn is brought into contact and the yarn is separated at an end portion on a downstream side in a flow direction of the oil agent in which the oil agent flows; a finish discharging surface for discharging the finish, which is disposed on the downstream side of the yarn contact surface in the finish flow direction, and which is formed so as to be farther from the yarn path toward the downstream side in the finish flow direction; and a pair of regulating surfaces formed at both ends of the flow path in the width direction of the flow path. The distance between the pair of regulating surfaces in the width direction is 0.35mm or less at the narrowest part of the wire contact surface formed at both sides in the width direction.
Description
Technical Field
The present invention relates to a finish applying yarn guide for applying a finish to a yarn, and a spinning and drawing machine including the finish applying yarn guide.
Background
Patent document 1: japanese patent laid-open publication No. 2002-309432
In recent years, the inventors of the present application found that: depending on the conditions such as the thickness of the yarn and the concentration of the oil, the oil that does not adhere to the yarn tends to scatter or drip. The present inventors have conducted extensive studies and found that the scattering of the oil agent and the like occurs due to the following reasons. That is, if the oil agent is unintentionally accumulated in the flow path (for example, in the space surrounded by the oil agent discharge surface and the regulating surface) in the vicinity of the yarn immediately after separation from the yarn contact surface, the accumulated oil agent is pulled by the yarn and flies out of the flow path when the yarn comes out of the oil agent application guide. This is considered to cause the oil agent to scatter.
Disclosure of Invention
The purpose of the present invention is to suppress unintended accumulation of a lubricant that does not adhere to a yarn in a lubricant applying yarn guide.
A finish applying yarn guide according to a first aspect of the present invention is a finish applying yarn guide for applying a finish to a yarn traveling from above to below, the finish applying yarn guide including a yarn guide main body having a flow path formed therein for flowing the finish from above to below, the flow path including: a yarn contact surface with which the yarn is brought into contact, the yarn being separated at an end portion on a downstream side in a flow direction of the oil agent in which the oil agent flows; a finish discharging surface for discharging the finish, the finish discharging surface being disposed downstream of the yarn contact surface in a flow direction of the finish, and being formed to be farther from the yarn path toward a downstream side in the flow direction of the finish; and a pair of regulating surfaces formed at both ends of the flow path in the width direction of the flow path, wherein the distance between the pair of regulating surfaces in the width direction is 0.35mm or less at the narrowest portion of the wire contact surface formed at both sides in the width direction.
Generally, the finish imparting guide is configured in the following orientation: the contact surface of the silk thread is positioned at the upper side, and the oil agent discharge surface is positioned at the lower side. The oil agent supplied to the oil agent applying guide thus arranged flows from above to below along the yarn contact surface and the oil agent discharge surface. As described above, when the oil agent is unintentionally accumulated in the flow path in the vicinity of the yarn separated from the yarn contact surface, the accumulated oil agent may be pulled by the yarn and fly out of the flow path to be scattered. In particular, the oil agent flowing through both ends in the width direction of the flow path is likely to flow toward the downstream side in the oil agent flow direction without contacting the yarn (i.e., without being likely to adhere to the yarn), and to be accumulated in the space. In addition, when the amount of the oil that does not adhere is large, the oil is discharged (collected) by dropping from the oil discharge surface.
In the present invention, the distance between the pair of regulating surfaces in the width direction is narrowed to 0.35mm or less at the narrowest portion of the wire contact surface formed on both sides in the width direction. This makes it easier for the oil agent flowing through the narrow portion of the flow path to come into contact with the thread (i.e., to adhere to the thread). Therefore, the amount of the oil agent flowing downstream in the oil agent flow direction without adhering to the yarn can be reduced, and as a result, the oil agent can be prevented from accumulating in the space. This can prevent the oil agent not adhering to the yarn from being unintentionally accumulated in the oil agent applying guide.
A finish applying yarn guide according to a second aspect of the present invention is a finish applying yarn guide for applying a finish to a yarn traveling from above to below, the finish applying yarn guide comprising a yarn guide body having a flow path formed therein for allowing the finish to flow from above to below, the flow path comprising: a yarn contact surface with which the yarn is brought into contact, the yarn being separated at an end portion on a downstream side in a flow direction of the oil agent in which the oil agent flows; a finish discharging surface for discharging the finish, the finish discharging surface being disposed downstream of the yarn contact surface in a flow direction of the finish, and being formed to be farther from the yarn path toward a downstream side in the flow direction of the finish; and a pair of regulating surfaces formed at both ends of the flow path in the width direction of the flow path, the pair of regulating surfaces being formed on both sides of the yarn contact surface in the width direction and not formed on both sides of the oil discharge surface in the width direction at least at an end portion on an upstream side in the oil flowing direction.
In the present invention, there is a portion where the regulating surface is not formed immediately downstream of a position where the yarn is separated from the yarn contact surface (hereinafter referred to as a separation position) in the oil agent flow direction. This can reduce the space in which the oil agent is likely to accumulate on the downstream side of the isolation position in the oil agent flow direction. Thus, in the present invention, the unintended accumulation of the oil that does not adhere to the yarn can be suppressed even in the oil applying guide.
A finish-applying yarn guide according to a third aspect of the invention is the finish-applying yarn guide according to the first or second aspect of the invention, wherein the interval between the pair of regulating surfaces formed on both sides of the yarn contact surface in the width direction is the narrowest at a position where the yarn is separated from the yarn contact surface.
In the present invention, the space is narrow at the isolation position and around the isolation position, and therefore, the space in which the oil agent is likely to accumulate can be reduced. This can further suppress scattering of the oil agent.
A finish applying yarn guide according to a fourth aspect of the invention is the finish applying yarn guide according to any one of the first to third aspects of the invention, wherein an angle formed by a yarn path extending from a point where the yarn is separated from the yarn contact surface to a downstream side in a yarn advancing direction and an upstream end portion of the finish discharging surface in the finish flowing direction is 50 degrees or more in a cross section orthogonal to the width direction.
When the angle is small, the influence of the surface tension becomes large in the space sandwiched between the yarn and the oil agent discharge surface immediately after the separation from the yarn contact surface, and the oil agent may be easily accumulated. In the present invention, since the angle is as large as 50 degrees or more, the influence of the surface tension can be reduced. This can prevent the oil from accumulating in the space sandwiched between the yarn and the oil discharge surface.
A finish applying yarn guide according to a fifth aspect of the invention is the finish applying yarn guide according to any one of the first to fourth aspects of the invention, wherein when the yarn guide body is disposed in a direction in which the yarn running from above to below contacts the yarn contact surface, an angle formed by the finish discharging surface and a vertical line is 60 degrees to 72 degrees in a cross section orthogonal to the width direction.
In the present invention, by setting the angle formed by the oil agent discharge surface and the vertical line to 60 degrees or more and 72 degrees or less, it is possible to achieve both the suppression of the accumulation of the oil agent in the space sandwiched between the wire and the oil agent discharge surface and the smooth discharge of the oil agent along the oil agent discharge surface by gravity.
A finish applying yarn guide according to a sixth aspect of the invention is the finish applying yarn guide according to the first or second aspect of the invention, wherein the finish discharging surface includes: a first discharge surface disposed downstream of the yarn contact surface in the oil flowing direction; and a second discharge surface that is disposed on a further downstream side than the first discharge surface in the oil flowing direction and that is curved with respect to the first discharge surface, wherein a second angle formed by the second discharge surface and a vertical line is smaller than a first angle formed by the first discharge surface and the vertical line in a cross section orthogonal to the width direction when the guide body is disposed in an orientation in which the wire that travels from above to below is in contact with the wire contact surface.
For example, by increasing the angle formed by the yarn path and the upstream end of the finish discharging surface in the finish flowing direction as in the fourth aspect, accumulation of the finish in the space sandwiched between the yarn and the finish discharging surface can be suppressed. On the other hand, when the angle formed by the oil agent discharge surface and the vertical line is increased by increasing the angle, the oil agent discharge efficiency by gravity may be decreased because the oil agent discharge surface is close to horizontal (in particular, when the oil agent starts to flow before the yarn is run, the influence of the decrease in the discharge efficiency becomes large). More specifically, if it is difficult to discharge the oil from the downstream side of the oil discharge surface in the oil flow direction, the oil may be easily accumulated on the upstream side of the oil discharge surface. In this regard, in the present invention, the second angle can be made smaller even when the first angle is made larger, so that a decrease in the oil agent discharge efficiency can be suppressed.
In the oil-applying yarn guide according to the seventh aspect of the invention, in the sixth aspect of the invention, the second angle is 50 degrees or less.
In the present invention, since the second angle is as small as 50 degrees or less, a decrease in the oil agent discharge efficiency can be more reliably suppressed.
A spinning draft machine according to an eighth aspect of the present invention includes: a spinning device for spinning a yarn; a drawing device that draws the yarn spun from the spinning device and winds the yarn around a bobbin; and a finish-applying yarn guide according to any one of the first to seventh aspects, the finish-applying yarn guide being disposed between the spinning device and the drawing device in a yarn running direction.
In general, since a yarn is spun at a high speed from a spinning device, there is a high possibility that an oil agent unintentionally accumulated in an oil agent applying yarn guide is pulled at a high speed by a high-speed running yarn and is scattered. The application of the above-described finish-applying yarn guide to such a spinning and drawing machine is particularly effective for suppressing the unintended accumulation of the finish that is not adhered to the yarn.
In the spinning draft machine according to a ninth aspect of the present invention, in the eighth aspect of the present invention, the spinning device is capable of spinning a yarn having a thickness of 55 dtex or less.
In the case of applying an oil to a relatively thin yarn, the oil flowing through the flow path at both ends of the flow path in the width direction is likely to flow toward the downstream side in the oil flowing direction without contacting the yarn (i.e., without being likely to adhere to the yarn). Therefore, the amount of the oil agent unintentionally accumulated in the oil agent applying wire guide may increase. The application of the above-described finish-applying yarn guide to such a spinning and drawing machine is particularly effective for suppressing the unintended accumulation of the finish that is not adhered to the yarn.
A spinning and drawing machine according to a tenth aspect of the present invention is the eighth or ninth aspect of the present invention, wherein the spinning and drawing machine further includes an oil supply device capable of supplying the finish oil having a mass concentration of 85% or more to the finish oil applying yarn guide.
In general, a high-concentration oil agent has a high kinematic viscosity and is difficult to adhere to a yarn (for example, in a yarn composed of a plurality of filaments, the oil agent is difficult to enter between the filaments). Therefore, the amount of the oil agent flowing downstream in the oil agent flow direction without adhering to the yarn increases. The application of the above-described finish-applying yarn guide to such a spinning and drawing machine is particularly effective for suppressing the unintended accumulation of the finish that is not adhered to the yarn.
Drawings
Fig. 1 is a side view showing a spinning draft machine according to a first embodiment.
Fig. 2 is a schematic view showing an oil agent application device.
Fig. 3 is a front view of the oil-applying thread guide of the first embodiment.
Fig. 4 is a sectional view taken along line IV-IV of fig. 3.
Fig. 5 is a table showing the result of confirming the effect of the first embodiment.
Fig. 6 is a front view of the oil applying wire guide of the second embodiment.
In FIG. 7, (a) is a sectional view taken along line VII-VII of FIG. 6, and (b) is a partially enlarged view of (a).
Fig. 8 is a table showing the result of confirming the effect of the second embodiment.
Fig. 9 is a sectional view of an oil applying guide according to a modification of the second embodiment.
Description of the symbols
1 spinning traction machine
2 spinning device
5 traction device
11 oiling agent applying guide wire device
12 oil supply device
30 guide wire device body
31 flow path
36 wire contact surface
37 oil agent-discharging surface
38 limiting surface
40 oiling agent applying guide wire device
50 wire guide body
51 flow path
56 contact surface of wire
57 oil agent discharging face
58 limit surface
101 thread path
102 thread channel
Bobbin B
Interval G2
P1 isolation Point
P3 isolation Point
Y silk thread
Angle theta a
Theta b Angle (first Angle)
Angle theta c (second angle)
Detailed Description
< first embodiment >
Next, a first embodiment of the present invention will be explained. For convenience of explanation, the directions shown in fig. 1 and 2 are the up-down direction, the left-right direction, and the front-back direction. The vertical direction is a vertical direction in which gravity acts. The front-rear direction is a direction perpendicular to the vertical direction, and the bobbins B described later are arranged. The left-right direction is a direction orthogonal to both the up-down direction and the front-back direction. The direction in which the yarn Y travels is referred to as a yarn traveling direction.
(spinning traction machine)
A spinning and drawing machine 1 according to a first embodiment will be described in brief with reference to fig. 1 and 2. Fig. 1 is a side view showing a spinning traction machine 1 according to a first embodiment. Fig. 2 is a schematic diagram showing a finish applying device 3 described later. As shown in fig. 1, the spinning and drawing machine 1 includes a spinning device 2, a finish applying device 3, a drawing device 4, and a drawing device 5.
The spinning device 2 is configured to spin a plurality of yarns Y made of synthetic fibers (for example, polyester) from discharge ports (not shown) of a plurality of spinning nozzles 2a arranged in a horizontal direction, for example. As an example, as shown in fig. 1, the spinning device 2 can spin 12 threads Y. Each yarn Y is, for example, a multifilament yarn composed of a plurality of filaments f. However, the yarn Y is not limited to this, and may be formed of 1 filament f. The spinning device 2 can change the thickness of the spun yarn Y (filament f) according to the opening area of the discharge port of the spinneret 2 a. As an example, the spinning device 2 can spin a fine yarn Y of 55 dtex or less. Further, a cooling device, not shown, for cooling the plurality of yarns Y immediately after being spun from the spinning device 2 is provided below the spinning device 2.
The oil application device 3 includes: a plurality of oiling agent applying yarn guides 11 provided corresponding to the plurality of yarns Y running from above to below; and an oil supply device 12 (see fig. 2) that supplies oil to the plurality of oil applying yarn guides 11. The oil application device 3 is configured to supply oil (see the left arrow in the paper of fig. 2) from the oil supply device 12 to the oil application guide 11 via the supply pipe 13, for example. The oil agent supplied to the oil agent applying guide 11 through the supply pipe 13 comes into contact with the yarn Y and adheres to the yarn Y. A part of the finish oil remaining without adhering to the yarn Y is collected into the collection tank 15 through, for example, a collection path 14 (see a downward arrow in the right direction in the drawing sheet of fig. 2) disposed below the finish oil applying yarn guide 11.
The plurality of finish applying yarn guides 11 are disposed below the spinning device 2 and the cooling device (not shown) in correspondence with the plurality of yarns Y. The plurality of finish-applying yarn guides 11 are disposed between the cooling device and the drawing device 5 (in other words, between the spinning device 2 and the drawing device 5) in the yarn running direction. The finish-applying yarn guide 11 is configured to collect a plurality of filaments f spun from the spinneret 2a into 1 yarn Y and apply finish supplied from the oil feeder 12 to the yarn Y. The details of the oiling agent applying guide 11 will be described later. The oil supply device 12 is configured to be able to supply a mixture (emulsion) of water and oil as an oil agent, for example. The oil supply device 12 can supply oil of various concentrations. As an example, the oil supply device 12 can supply the oil agent having a high concentration of 85% by mass or more.
The stretching device 4 is disposed below the oil agent applying device 3. The stretching apparatus 4 includes an incubator 16 and a plurality of heating rollers 16a housed in the incubator 16. The drawing device 4 draws the plurality of yarns Y while heating them by the plurality of heating rollers 16 a. The moisture contained in the finish oil applied to the yarn Y is evaporated by heating the yarn Y with the heating roller 16a, for example, and removed from the finish oil.
The drawing device 5 draws the plurality of yarns Y spun from the spinning device 2, and winds the yarns Y around the plurality of bobbins B to form a package P. As shown in fig. 1 and 2, the drawing device 5 includes a first godet roller 17 and a second godet roller 18 that draw the yarn Y, and a winding unit 19 that winds the drawn yarn Y around the bobbin B. The winding section 19 includes a plurality of fulcrum guides 21, a plurality of traverse guides 22, a turn table 23, 2 bobbin holders 24, and a contact roller 25.
The plurality of fulcrum yarn guides 21 are yarn guides serving as fulcrums at which the yarn Y traverses by the traversing yarn guide 22. The plurality of fulcrum wire guides 21 are provided independently of the plurality of yarns Y, and are arranged in the front-rear direction. The plurality of traverse guides 22 are provided independently of the plurality of yarns Y, and are arranged in the front-rear direction. The traverse guide 22 is driven by a motor, not shown, and traverses the yarn Y in the front-rear direction.
The turntable 23 is a disk-shaped member whose axial direction is substantially parallel to the front-rear direction. The turntable 23 is rotationally driven by a turntable motor not shown. The 2 bobbin holders 24 are axially parallel to the front-rear direction and rotatably supported by the upper end portion and the lower end portion of the turn table 23. The bobbin holders 24 are attached in a front-rear direction in a row with a plurality of bobbins B provided independently of the plurality of yarns Y. The 2 bobbin holders 24 are rotationally driven by respective independent motors (not shown). The contact roller 25 is in contact with the surfaces of the plurality of packages P supported by the upper bobbin holder 24, thereby applying a contact pressure to the surfaces of the packages P being wound, and thus carding the shapes of the packages P.
In the winding section 19 as described above, when the upper bobbin holder 24 is rotationally driven, the yarn Y traversed by the traverse guide 22 is wound around the bobbin B to form the package P. When the package P is fully wound, the vertical positions of the 2 bobbin holders 24 are switched by rotating the turn table 23. As a result, the bobbin holder 24 positioned on the lower side moves upward, and the yarn Y can be wound around the bobbin B attached to the bobbin holder 24 to form the package P.
(Structure of oil-applying yarn guide)
Next, the structure of the oil applying wire guide 11 will be described with reference to fig. 3 and 4. Fig. 3 is a front view of the oil applying thread guide 11. Fig. 4 is a sectional view taken along line IV-IV of fig. 3. Hereinafter, the direction in which the oil agent flows is referred to as the oil agent flow direction. The width direction of the flow path 31 (described later) substantially parallel to the left-right direction is simply referred to as the width direction.
The oil applying guide 11 has a guide main body 30 in which a flow path 31 for flowing the oil supply agent is formed. The guide main body 30 is made of a ceramic material such as aluminum or zirconia, for example, but is not limited thereto.
The flow path 31 extends at least in the vertical direction, and is configured to flow the oil agent from above to below. A part of the flow path 31 also functions as a passage for guiding the yarn Y from above to below. As shown in fig. 3 and 4, the flow path 31 includes a supply hole 32, a discharge port 33, a flow surface 34, and a pair of restricting walls 35 (restricting walls 35a, 35 b).
The supply hole 32 is a hole formed in the rear portion of the guide main body 30 and extending in the front-rear direction. The supply hole 32 is formed so that the supply pipe 13 can be inserted from behind. The discharge port 33 is disposed at the front end of the supply hole 32 at the middle portion in the front-rear direction of the guide main body 30. The discharge port 33 is arranged above the flow surface 34 and opens forward.
The flow surface 34 is formed at the middle part in the front-rear direction of the guide main body 30, and flows the oil agent from the upper side to the lower side. The flow surface 34 has a thread contact surface 36 and an oil agent discharge surface 37. The wire contact surface 36 is formed below the discharge port 33 and faces substantially forward. The wire contact surface 36 extends generally in the up-down direction. The wire contact surface 36 is slightly curved, for example, rearward as it goes downward. However, the wire contact surface 36 is not limited to this, and may be provided in a substantially planar shape, for example, in the vertical direction. The yarn contact surface 36 is formed so that the yarn Y traveling from the upper side to the lower side contacts the yarn Y and the oil agent flows from the upper side to the lower side. The position of the wire contact surface 36 where the wire Y first contacts (the position immediately below the discharge port 33) is the upper end of the wire contact surface 36. In a cross section (see fig. 4) perpendicular to the width direction, a point at which the yarn Y is separated from the yarn contact surface 36 is defined as a separation point P1. The yarn Y immediately after being separated from the yarn contact surface 36 travels so as to draw a tangent to the yarn contact surface 36 with the separation point P1 as a tangent point (that is, a part of the yarn path 101 (see fig. 4) through which the yarn Y passes corresponds to the tangent line).
Further, a surface 39 facing at least the front side is formed above the discharge port 33, similarly to the wire contact surface 36. The surface 39 extends upward and rearward relative to the discharge port 33. The yarn Y contacts the lower end of the surface 39 (the end immediately above the discharge port 33). Face 39 is not included with flow face 34.
The oil agent discharge surface 37 is formed below the thread contact surface 36 and is connected to the thread contact surface 36. The upper end of the finish oil discharge surface 37 is connected to the lower end of the thread contact surface 36. The oil agent discharge surface 37 extends obliquely rearward and downward (see fig. 4). That is, the oil agent discharge surface 37 is formed to be farther from the yarn path 101 toward the downstream side in the oil agent flow direction. The oil discharge surface 37 is formed in a substantially planar shape at least in an upstream portion in the oil flow direction, for example. The oil agent that has not adhered to the yarn Y flows downward along the oil agent discharge surface 37, and further drops onto the recovery path 14 (see fig. 2). As a result, the oil agent passes through the recovery path 14 and is recovered in the recovery tank 15 (see fig. 2).
The boundary between the thread contact surface 36 and the oil agent discharge surface 37 is defined as follows, for example. As described above, at least the portion on the upstream side in the oil agent flow direction of the oil agent discharge surface 37 is formed in a substantially planar shape. Therefore, for example, in a cross section orthogonal to the width direction, a straight line extending along the outer edge of the oil discharge surface 37 on the upstream side in the oil flow direction and a point (see point P2 in fig. 4) separated from the actual outer edge of the flow surface 34 are defined as the upstream end (in other words, the upper end) of the oil discharge surface 37 in the oil flow direction. The point P2 also corresponds to the downstream end (in other words, the lower end) of the wire contact surface 36 in the oil agent flow direction. Then, a region of the wire contact surface 36 that is within 0.88mm upward from the point P2, for example, is defined as a downstream end (in other words, a lower end) of the wire contact surface 36 in the oil agent flow direction. The separation point P1 is included at the downstream end of the wire contact surface 36 in the oil flow direction.
The pair of limiting walls 35 are walls formed at the front portion of the guide main body 30 and extending in the front-rear direction and the up-down direction. The pair of limiting walls 35 are provided on both right and left sides of the thread contact surface 36 and the oil agent discharge surface 37. A pair of regulating surfaces 38 (regulating surfaces 38a, 38b) are formed on the inner sides of the pair of regulating walls 35 in the width direction, respectively. The pair of regulating surfaces 38 are formed at least on the outer sides in the width direction of the thread contact surface 36 and the oil agent discharge surface 37 (in other words, on both ends in the width direction of the flow path 31). The regulating surfaces 38a and 38b regulate the movement of the yarn Y in the width direction, and prevent the oil agent flowing through the flow path 31 from spreading in the left-right direction.
Here, in recent years, the present inventors have found that: depending on the conditions such as the thickness of the yarn Y and the concentration of the oil, the oil supplied to the oil applying guide 11 is not collected and easily scatters or drips. The present inventors have conducted extensive studies and found that the scattering of the oil agent and the like occurs due to the following reasons. That is, in the vicinity of the yarn Y immediately after separation from the yarn contact surface 36, the oil agent may be unintentionally accumulated in a space (see the space S in fig. 4) surrounded by the flow surface 34 (the yarn contact surface 36 and the oil agent discharge surface 37) and the regulating surfaces 38a and 38b, for example, due to the influence of surface tension. When the oil agent is unintentionally accumulated in this manner, the accumulated oil agent is pulled by the yarn Y and flies out from the flow path 31 when the yarn Y comes out of the oil agent applying guide 11. This is considered to cause the oil agent to scatter.
This phenomenon becomes more remarkable as the yarn Y becomes finer. When the yarn Y is thin, the oil agent flowing through the flow path 31 at both ends of the flow path 31 in the width direction easily flows toward the downstream side in the oil agent flowing direction without contacting the yarn Y (i.e., without being adhered to the yarn Y). Therefore, the oil agent is likely to be accumulated in the space S.
In recent years, it has been studied to use a high-concentration oil agent so as to reduce the amount of water contained in the oil agent and facilitate evaporation of the water. However, when an oil agent having a high concentration is used, the following problems may occur. That is, a high-concentration finish generally has a high kinematic viscosity and is difficult to adhere to the yarn Y (for example, in a yarn Y composed of a plurality of filaments f, the finish is difficult to enter between the filaments f). Therefore, the amount of the oil agent flowing downstream in the oil agent flow direction without adhering to the yarn Y increases. Therefore, the oil agent is likely to accumulate in the space S.
Therefore, in order to suppress the unintended accumulation of the oil agent not adhering to the yarn Y, the oil agent applying guide 11 of the first embodiment is configured as follows.
(detailed construction of oil-applying yarn guide)
In order to make the plurality of filaments f converge, the width-directional interval (hereinafter also simply referred to as "interval") of the portions of the pair of regulating surfaces 38 disposed on both sides of the thread contact surface 36 in the width direction becomes narrower toward the lower side (the downstream side in the oil agent flow direction). That is, as shown in fig. 3, the interval (interval G2) at the position in the oil flowing direction where the isolation point P1 (see fig. 4) is formed is narrower than the interval (interval G1) at the upstream end of the wire contact surface 36 in the oil flowing direction. The gap G2 is the narrowest of the gaps between the regulating surfaces 38a and 38b disposed on both sides of the wire contact surface 36 in the width direction. The gap G2 is narrower than conventional ones, and is 0.35mm or less (the gap is 0.53mm in conventional products).
This makes it easy for the oil agent flowing through the narrow portion of the flow path 31 to contact with the yarn Y (i.e., to adhere to the yarn). Therefore, the amount of the oil agent flowing downstream in the oil agent flow direction without adhering to the yarn can be reduced, and as a result, the inventors of the present application have considered that the accumulation of the oil agent in the space S can be suppressed.
As described above, the gap G2 is the narrowest of the gaps between the regulating surfaces 38a and 38b disposed on both sides of the wire contact surface 36 in the width direction. Therefore, since the space S becomes small at and around the isolation point P1, the oil agent can be prevented from accumulating in the space S, and the oil agent can be further prevented from scattering or the like.
(test for confirming Effect)
In order to confirm the effect of making the gap G2 narrower than before, the present inventors performed the following confirmation test. First, the present inventors prepared 8 specimens (example 1, example 2, and comparative example) each, as a finish applying guide, for 3 kinds of test pieces described later.
The conditions for applying the oil to the guide in examples and comparative examples will be specifically described. In example 1, the gap G1 was 1.2mm and the gap G2 was 0.35 mm. In example 2, the gap G1 was 0.9mm and the gap G2 was 0.27 mm. In the comparative example (conventional product), the gap G1 was 1.8mm, and the gap G2 was 0.53 mm.
As examples of the yarn Y, two thick and thin FDY yarns (48 yarn 55 dtex and 24 yarn 44 dtex) made of polyester are used. As an example of the oil agent, an oil agent having a concentration of 90% by mass was used. Then, the yarn Y was advanced while supplying the oil agent to the oil agent applying guide 11, and the occurrence of scattering and dripping of the oil agent (presence or absence of scattering and dripping) was evaluated. Specifically, the state of the oil agent scattering or the like is checked as follows. That is, for example, a bias lamp NP-1 ("NP-1" is a model) of CSC, which can be used in a clean room, is attached with a green filter, and light is irradiated to a site to be observed, and whether or not there is scattering of an oil agent is confirmed by visual observation. The observation range is 30mm to 180mm from the lower end of the oil application guide toward the lower side.
First, the evaluation results using the 55 dtex string Y are shown in the upper table of fig. 5. In the table, 3-stage evaluations (i.e., "no", "scattering and dripping") are described as "the presence or absence of scattering and dripping of the oil agent". "none" is an evaluation showing good results without causing scattering and dripping of the oil agent. The term "scattering" means that although scattering of the oil agent occurs, dripping of the oil agent does not occur. "scattering and dripping" indicates that both scattering and dripping of the oil solution occur.
In example 1, 6 specimens were evaluated for "none" out of 8 specimens, "2 specimens were evaluated for" scattering ", and 0 specimen was evaluated for" scattering and dripping ". In example 2 as well, 6 specimens were evaluated for "none" out of 8 specimens, "2 specimens were evaluated for" scattering ", and 0 specimen was evaluated for" scattering and dripping ". In the comparative example, 2 specimens were evaluated for "none" out of 8 specimens, "5 specimens were evaluated for" scattering ", and 1 specimen was evaluated for" scattering and dripping ". By narrowing the gap G2 to 0.35mm or less in this manner, the effect of suppressing the scattering of the oil agent and the like can be remarkably observed. The reason for this can be considered as: as described above, the amount of the oil agent flowing downstream in the oil agent flowing direction without adhering to the yarn Y is reduced, and as a result, the oil agent can be prevented from accumulating in the space.
Next, the evaluation results using the 44 dtex yarn Y are shown in the table on the lower side of the paper of fig. 5. Compared with the case of using the 55 dtex yarn Y, the tendency of scattering and dropping of the oil agent was observed more. The reason for this can be considered as: as described above, of the oil agent flowing through the flow path 31, the oil agent flowing in the width direction at both ends of the flow path 31 easily flows toward the downstream side in the oil agent flowing direction without coming into contact with the yarn Y (i.e., without being able to adhere to the yarn Y).
In example 1, 0 test piece was evaluated as "none", 3 test pieces were evaluated as "scattering", and 5 test pieces were evaluated as "scattering and dripping". In example 2, 0 test piece was evaluated as "none", 6 test pieces were evaluated as "scattering", and 2 test pieces were evaluated as "scattering and dripping". In the comparative example, 0 test piece was evaluated as "none", 1 test piece was evaluated as "scattering", and 7 test pieces were evaluated as "scattering and dripping". In this way, when the yarn Y was thin and 44 dtex, the oil agent was scattered in any of the test specimens, and by narrowing the gap G2 to 0.35mm or less, the effect of suppressing the dripping of the oil agent was observed. In this way, regardless of the thickness of the yarn Y, scattering or dripping of the oil agent is suppressed by narrowing the gap G2.
As described above, the gap G2 is narrowed to 0.35mm or less. This makes it easier for the oil agent flowing through the narrow portion of the flow path 31 to contact with the yarn Y (i.e., to adhere to the yarn Y). Therefore, the amount of the oil agent flowing downstream in the oil agent flowing direction without adhering to the yarn Y can be reduced, and as a result, the accumulation of the oil agent in the space S can be suppressed. This can prevent the oil agent not adhering to the yarn Y from being unintentionally accumulated in the oil agent applying guide 11.
The gap G2 is the narrowest of the gaps between the regulating surfaces 38a and 38b disposed on both sides of the wire contact surface 36 in the width direction. Therefore, the space in which the oil agent is likely to accumulate can be reduced at and around the isolation point P1, and therefore, the scattering of the oil agent and the like can be further suppressed.
In general, since the yarn is spun at a high speed from the spinning device 2, the unintentionally accumulated finish oil is pulled at a high speed by the yarn Y traveling at a high speed and is likely to be scattered. The application of the finish-applying yarn guide 11 to the spinning and drawing machine 1 is particularly effective in preventing the unintended accumulation of the finish that is not adhered to the yarn Y.
In addition, when an oil is applied to a fine yarn Y of 55 dtex or less, of the oil flowing through the flow path 31, the oil flowing in both ends of the flow path 31 in the width direction easily flows to the downstream side in the oil flowing direction without contacting the yarn Y (i.e., without being adhered to the yarn). Therefore, the amount of the oil agent unintentionally accumulated in the oil agent applying guide 11 may be increased. The application of the finish-applying yarn guide 11 to the spinning and drawing machine 1 is particularly effective in preventing the unintended accumulation of the finish that is not adhered to the yarn Y.
Further, an oil agent having a high concentration of 85% by mass or more has a high kinematic viscosity and is less likely to adhere to the yarn Y. Therefore, the amount of the oil agent flowing downstream in the oil agent flowing direction without adhering to the yarn Y increases. The application of the finish-applying yarn guide 11 to the spinning and drawing machine 1 is particularly effective in preventing the unintended accumulation of the finish that is not adhered to the yarn Y.
< second embodiment >
Next, a second embodiment of the present invention will be described with reference to (a) and (b) in fig. 6 and 7. Note that the same reference numerals are given to components similar to those of the first embodiment, and the description thereof will be omitted as appropriate. Fig. 6 is a front view of the oil applying wire guide 40 of the second embodiment. FIG. 7 (a) is a sectional view taken along line VII-VII of FIG. 6. Fig. 7 (b) is an enlarged view of the region R1 shown in fig. 7 (a).
The finish applying yarn guide 40 (see fig. 6 and 7 (a) and (b)) of the second embodiment is a yarn guide equipped with the finish applying device 3 (see fig. 1) of the spinning and drawing machine 1 (see fig. 1) in the same manner as the finish applying yarn guide 11 of the first embodiment.
(Structure of oil-applying yarn guide)
The structure of the oil applying wire guide 40 will be explained. The finish applying wire guide 40 has a wire guide main body 50 (corresponding to the wire guide main body 30 of the finish applying wire guide 11) in which a flow path 51 (corresponding to the flow path 31 of the finish applying wire guide 11) is formed. The flow path 51 includes a supply hole 52, a discharge port 53, a flow surface 54 (a thread contact surface 56 and an oil agent discharge surface 57), and a pair of restricting walls 55 (restricting walls 55a and 55 b).
The supply hole 52 corresponds to the supply hole 32 of the oil agent applying guide 11. The discharge port 53 corresponds to the discharge port 33 of the oil application guide 11. The flow surface 54 corresponds to the flow surface 34 of the oil application guide 11. The thread contact surface 56 corresponds to the thread contact surface 36 of the oil agent applying thread guide 11. The oil agent discharge surface 57 corresponds to the oil agent discharge surface 37 of the oil agent applying guide 11. The pair of limiting walls 55 correspond to the pair of limiting walls 35 of the oil agent applying guide 11. The regulating wall 55 is formed with regulating surfaces 58 (regulating surfaces 58a, 58b) corresponding to the regulating surface 38 of the oil agent applying guide 11. Further, a surface 59 corresponding to the surface 39 of the finish applying yarn guide 11 is formed above the discharge port 53. Hereinafter, the main common points and different points between the oil agent applying wire guide 40 and the oil agent applying wire guide 11 will be described.
The lower end of the wire contact surface 56 is defined in the same manner as the oiling agent application guide 11. That is, in the cross section orthogonal to the width direction (see fig. 7 (a)), a point at which the yarn Y is separated from the yarn contact surface 56 is set as the separation point P3. The yarn Y immediately after separation from the yarn contact surface 56 travels so as to draw a tangent to the yarn contact surface 56 with the separation point P3 as a tangent point (that is, a part of the yarn path 102, which is a path through which the yarn Y passes, corresponds to the tangent line).
The upper end of the oil agent discharge surface 57 is connected to the lower end of the wire contact surface 56. The oil discharge surface 57 is formed to be farther rearward from the yarn path 102 toward the downstream side in the oil flow direction (see fig. 7 (a)). The oil agent discharge surface 57 is, for example, substantially planar (i.e., substantially linear in a cross-sectional view perpendicular to the width direction) throughout the entire oil agent flow direction.
As in the oil applying guide 11, the boundary between the wire contact surface 56 and the oil discharge surface 57 is defined as follows, for example. That is, in a cross section orthogonal to the width direction, a straight line extending along the outer edge of the oil discharge surface 57 on the upstream side in the oil flow direction and a point (see point P4 in fig. 7 a) separated from the actual outer edge of the flow surface 54 are defined as the upstream end (in other words, the upper end) of the oil discharge surface 57 in the oil flow direction. The point P4 corresponds to the downstream end (in other words, the lower end) of the wire contact surface 56 in the oil agent flow direction. Then, a region of the wire contact surface 56 that is within 0.61mm upward from the point P4, for example, is defined as a downstream end (in other words, a lower end) of the wire contact surface 56 in the oil agent flow direction. The isolation point P3 is included at the downstream end of the wire contact surface 56 in the oil flow direction. A region of the oil discharge surface 57 located rearward from the point P4 within 3mm, for example, is defined as an upstream end of the oil discharge surface 57 in the oil flowing direction.
In the finish applying yarn guide 40, a pair of regulating surfaces 58 are formed on both sides in the width direction of the yarn contact surface 56. On the other hand, the pair of regulating surfaces 58 are not formed on both sides of the oil agent discharge surface 57 in the width direction. That is, in the flow path 51, there are portions where the regulating surfaces 58a and 58b are not formed on the oil agent flow direction downstream side of the separation point P3. As a result, the space surrounded by the flow surface 54 and the regulating surfaces 58a and 58b (i.e., the space in which the oil agent is likely to accumulate) becomes smaller on the downstream side of the isolation point P3 in the oil agent flow direction. In fig. 7 (a), the pair of regulating surfaces 58 are not formed on both sides in the width direction of the entire region of the oil agent discharge surface 57.
Similarly to the finish oil applying yarn guide 11, the width-directional distance between the regulating surface 58a and the regulating surface 58b (hereinafter, simply referred to as "distance") becomes narrower toward the lower side (the downstream side in the finish oil flow direction). That is, as shown in fig. 5, the interval (interval G2) at the position in the oil flowing direction where the isolation point P3 is formed is narrower than the interval (interval G1) at the upstream end of the wire contact surface 56 in the oil flowing direction. Of the intervals between the restriction surfaces 58a and 58b, the interval G2 is narrowest.
As shown in fig. 7 (a), in a cross section perpendicular to the width direction, an angle formed by a tangent line (see the yarn path 102) of the yarn contact surface 56 with the isolation point P3 as a tangent point and an upstream end portion of the oil discharge surface 57 in the oil flow direction is represented by θ a. In this case, θ a is preferably 50 degrees or more, for example. The reason for this is that when θ a is small, the influence of the surface tension becomes large in the space sandwiched between the yarn Y immediately after separation from the yarn contact surface 56 and the oil agent discharge surface 57, and the oil agent may easily accumulate. By increasing θ a to 50 degrees or more, the influence of the surface tension is reduced, and the oil agent can be prevented from accumulating in the space sandwiched between the yarn Y and the oil agent discharge surface 57. This configuration can also be applied to the oil agent applying guide 11 of the first embodiment.
In addition, as in the second embodiment, when the wire guide body 50 is arranged in a direction in which the wire Y running from the upper side to the lower side is brought into contact with the wire contact surface 56, an angle formed by the oil agent discharge surface 57 and the vertical line in the cross section orthogonal to the width direction is represented by θ b. More specifically, θ b is an angle formed by the perpendicular line and a surface of the oil discharge surface 57 at the upstream end (defined as above) in the oil flowing direction. θ b is preferably 60 degrees or more and 72 degrees or less, for example. By increasing θ b to 60 degrees or more, the influence of the surface tension is reduced, and the oil agent can be prevented from accumulating in the space sandwiched between the yarn Y and the oil agent discharge surface 57. Further, by decreasing θ b to 72 degrees or less, the orientation of the oil agent discharge surface 57 approaches the vertical direction, and the gravity component along the orientation of the oil agent discharge surface 57 increases. Thereby, the oil agent is smoothly discharged along the oil agent discharge surface by gravity. This configuration can also be applied to the oil agent applying guide 11 of the first embodiment.
As shown in fig. 7 b, when the distance in the front-rear direction from the separation point P3 to the tip of the regulating wall 55 is L, the space surrounded by the flow surface 54 and the regulating surfaces 58a and 58b (the space in which the oil agent is likely to accumulate) can be reduced by reducing L. However, if L is too short, the oil may leak to the front side, and therefore L is preferably 0.75mm or more, for example. This configuration can also be applied to the oil agent applying wire guide 11 of the first embodiment.
(test for confirming Effect)
As described above, in order to confirm the effect of the oil agent discharge surface 57 without the regulating surfaces 58a and 58b formed on both sides in the width direction, the present inventors performed the following confirmation test in the same manner as in the first embodiment. The present inventors prepared 8 specimens (example 2 and example 3 described later) each as a finish applying guide. The test piece of example 3 is the oiling agent applying guide 40 of the second embodiment. The test piece of example 3 was subjected to the same conditions as the test piece of example 2 (oil application guide 11) except that the regulating surfaces 58a and 58b were not formed on both sides in the width direction of the oil agent discharge surface 57. That is, in the test piece of example 3, the gap G1 was 0.9mm, and the gap G2 was 0.27 mm. Test conditions such as the type of running yarn Y and the concentration of the finish are the same as those of the confirmation test of the first embodiment.
First, the evaluation results using the 55 dtex string Y are shown in the upper table of fig. 8. In example 3, 8 specimens were evaluated for "none", 0 specimen was evaluated for "scattering", and 0 specimen was evaluated for "scattering and dripping" out of 8 specimens. The evaluation results using the 44 dtex yarn Y are shown in the table on the lower side of the paper of fig. 8. In example 3, 8 specimens were evaluated for "none", 0 specimen was evaluated for "scattering", and 0 specimen was evaluated for "scattering and dripping" out of 8 specimens. Even when the yarn Y having such a thickness was run, it was confirmed that scattering and dripping of the oil agent could be suppressed. The reason for this can be considered as: as described above, since the space in which the oil agent is likely to accumulate is small, it is possible to suppress the oil agent from being unintentionally accumulated.
As described above, the restricting surfaces 58a and 58b are not formed on the downstream side of the separation point P3 in the oil flow direction. This makes it possible to reduce the space surrounded by the flow surface 54 and the regulating surfaces 58a and 58b (i.e., the space in which the oil agent is likely to accumulate) on the downstream side of the isolation point P3 in the oil agent flow direction. This can prevent the oil agent not adhering to the yarn Y from being unintentionally accumulated in the oil agent applying guide 40.
Further, since θ a is large and 50 degrees or more, the influence of the surface tension can be reduced, and the accumulation of the oil agent in the space sandwiched between the yarn Y and the oil agent discharge surface 57 can be suppressed.
Further, since θ b is in the range of 60 degrees to 72 degrees, the influence of the surface tension can be reduced, and the accumulation of the oil agent in the space sandwiched between the yarn Y and the oil agent discharge surface 57 can be suppressed. Further, the gravity component along the direction of the oil agent discharge surface 57 increases. This enables the oil to be smoothly discharged along the oil discharge surface 57 by gravity.
Next, a modification of the second embodiment will be described. Note that the same reference numerals are given to portions having the same configuration as that of the second embodiment, and the description thereof will be appropriately omitted.
(1) The pair of regulating surfaces 58 are not formed at all on both sides in the width direction of the oil agent discharge surface 57, but are not limited thereto. For example, the pair of regulating surfaces 58 may be formed on both sides in the width direction of a portion other than the upstream end portion of the oil agent discharge surface 57, instead of being formed on both sides in the width direction of the upstream end portion (defined as above) of the oil agent discharge surface 57 in the oil agent flow direction. That is, the pair of regulating surfaces 58 may be formed so as not to be present on both sides in the width direction of at least the upstream end portion of the oil agent discharge surface 57 in the oil agent flow direction.
(2) The interval G2 in example 3 described above is 0.27mm (i.e., the interval G2 in example 3 is the same as in example 2), but the interval G2 is not limited to this value. That is, since the regulating surfaces 58a and 58b are not formed on both sides in the width direction of the end portion of the oil agent discharge surface 57 on the upstream side in the oil agent flow direction, the space in which the oil agent is likely to accumulate can be reduced in the vicinity of the yarn Y immediately after separation from the yarn contact surface 56. In this way, the oil agent not adhering to the yarn Y can be prevented from being unintentionally accumulated.
(3) The θ a is preferably 50 degrees or more, but is not limited thereto. θ a may also be less than 50 degrees.
(4) The θ b is preferably 60 degrees to 72 degrees, but is not limited thereto. Ob may also be less than 60 degrees or greater than 72 degrees.
(5) As described above, by increasing θ a, the oil agent can be prevented from accumulating in the space sandwiched between the yarn Y and the oil agent discharge surface 57. On the other hand, when θ a is increased and θ b is also increased, the oil agent discharge surface 57 is close to horizontal, and therefore the oil agent discharge efficiency by gravity may be reduced (particularly, when the oil agent starts to flow before the yarn is run, the influence of the reduction in the discharge efficiency becomes large). More specifically, if it is difficult to discharge the oil from the downstream side of the oil discharge surface 57 in the oil flow direction, the oil may be easily accumulated on the upstream side of the oil discharge surface 57. Therefore, for example, as shown in fig. 9, the oil agent discharge surface 61 of the oil agent applying guide 60 may not be substantially planar as a whole, unlike the oil agent discharge surface 57. The oil agent discharge surface 61 includes, for example, a first discharge surface 62 and a second discharge surface 63. The first discharge surface 62 is a surface formed immediately downstream of the wire contact surface 56 in the oil agent discharge direction. In a cross section orthogonal to the width direction, an angle (first angle) formed by the first discharge surface 62 and the vertical line is θ b. The second discharge surface 63 is a surface formed on the downstream side of the first discharge surface 62 in the oil agent discharge direction. The second discharge surface 63 is curved with respect to the first discharge surface 62. In a cross section orthogonal to the width direction, when an angle (second angle) formed by the second discharge surface 63 and the perpendicular line is θ c, θ c is smaller than θ b. Accordingly, since θ c can be reduced even when θ b is increased, a decrease in efficiency of oil agent discharge by gravity can be suppressed. More specifically, θ c is preferably 50 degrees or less. The inventor of the application finds that: by reducing θ c to 50 degrees or less, a decrease in the efficiency of oil agent discharge can be more reliably suppressed. This modification can be applied to the oil applying wire guide 11 of the first embodiment. For example, θ a and θ b may be in the angular range shown in the second embodiment, but are not necessarily limited thereto.
Next, a modified example common to the first embodiment and the second embodiment will be described.
(1) The yarn path 101 (yarn path 102) on the downstream side in the yarn running direction from the isolation point P1 (isolation point P3) is the same as a tangent line having the isolation point P1 (isolation point P3) as a tangent point, but the present invention is not limited thereto. For example, the wire contact surface 36 (wire contact surface 56) may be substantially planar, and the wire Y may be bent rearward at a position where the wire Y is separated from the wire contact surface 36 (wire contact surface 56).
(2) The distance G2 is the narrowest of the gaps in the width direction of the pair of regulating surfaces 38 (the pair of regulating surfaces 58), but the present invention is not limited to this. The interval may be, for example, the narrowest on the upstream side or the downstream side of the position where the separation point P1 (separation point P3) is formed in the oil flowing direction.
(3) The finish applying yarn guides 11 and 40 are provided in the spinning and drawing machine 1, but are not limited thereto. The finish applying yarn guides 11 and 40 may be provided in a textile machine other than the spinning and drawing machine 1, which advances the yarn from above to below.
Claims (10)
1. A finish-applying yarn guide for applying a finish to a yarn running from above to below,
comprises a guide body having a flow path formed therein for allowing the oil to flow downward from above,
the flow path includes:
a yarn contact surface with which the yarn is brought into contact, the yarn being separated at an end portion on a downstream side in a flow direction of the oil agent in which the oil agent flows;
a finish discharging surface for discharging the finish, the finish discharging surface being disposed downstream of the yarn contact surface in a flow direction of the finish, and being formed to be farther from the yarn path toward a downstream side in the flow direction of the finish; and
a pair of regulating surfaces formed at both ends of the flow path in the width direction of the flow path,
the distance between the pair of regulating surfaces in the width direction is 0.35mm or less at the narrowest portion of the wire contact surface formed on both sides in the width direction.
2. A finish-applying yarn guide for applying a finish to a yarn running from above to below,
comprises a guide body having a flow path formed therein for allowing the oil to flow downward from above,
the flow path includes:
a yarn contact surface with which the yarn is brought into contact, the yarn being separated at an end portion on a downstream side in a flow direction of the oil agent in which the oil agent flows;
a finish discharging surface for discharging the finish, the finish discharging surface being disposed downstream of the yarn contact surface in a flow direction of the finish, and being formed to be farther from the yarn path toward a downstream side in the flow direction of the finish; and
a pair of regulating surfaces formed at both ends of the flow path in the width direction of the flow path,
the pair of limiting surfaces are formed by a pair of limiting surfaces,
formed on both sides of the wire contact surface in the width direction,
the oil discharge surface is not formed on both sides in the width direction of at least an end portion on the upstream side in the oil flowing direction.
3. The finish-imparting wire guide according to claim 1 or 2,
the distance between the pair of regulating surfaces formed on both sides of the yarn contact surface in the width direction is the narrowest at a position where the yarn is separated from the yarn contact surface.
4. An oil-imparting yarn guide according to any one of claims 1 to 3,
in a cross section orthogonal to the above-described width direction,
an angle formed by a yarn path extending from a point where the yarn is separated from the yarn contact surface to a downstream side in a yarn advancing direction and an upstream end portion of the finish discharging surface in the finish flowing direction is 50 degrees or more.
5. The finish-imparting yarn guide according to any one of claims 1 to 4,
when the yarn guide body is disposed in a direction in which the yarn running from above to below contacts the yarn contact surface, an angle formed by the finish oil discharge surface and a vertical line is 60 degrees to 72 degrees in a cross section orthogonal to the width direction.
6. The finish-imparting wire guide according to claim 1 or 2,
the oil agent discharge surface includes:
a first discharge surface disposed downstream of the yarn contact surface in the oil flowing direction; and
a second discharge surface which is disposed on a downstream side of the first discharge surface in the oil agent flow direction and is curved with respect to the first discharge surface,
when the yarn guide body is arranged in a direction in which the yarn running from the upper side to the lower side is in contact with the yarn contact surface, a second angle formed by the second discharge surface and a vertical line is smaller than a first angle formed by the first discharge surface and the vertical line in a cross section orthogonal to the width direction.
7. The finish-imparting wire guide of claim 6,
the second angle is 50 degrees or less.
8. A spinning traction machine is characterized by comprising:
a spinning device for spinning a yarn;
a drawing device that draws the yarn spun from the spinning device and winds the yarn around a bobbin; and
a finish-applying yarn guide as claimed in any one of claims 1 to 7, wherein the finish-applying yarn guide is disposed between the spinning device and the drawing device in a yarn running direction.
9. Spinning draft machine according to claim 8,
the spinning device can spin a yarn with a thickness of 55 dtex or less.
10. Spinning draft machine according to claim 8 or 9,
the oil supply device is provided with an oil supply device which can supply oil with the mass percentage concentration of more than 85% to the oil supply guide.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020021400A JP7475004B2 (en) | 2020-02-12 | 2020-02-12 | Oil application guide and spinning take-off machine |
| JP2020-021400 | 2020-02-12 |
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| Publication Number | Publication Date |
|---|---|
| CN113249804A true CN113249804A (en) | 2021-08-13 |
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|---|---|---|---|
| CN202110109064.5A Pending CN113249804A (en) | 2020-02-12 | 2021-01-27 | Oil-imparting yarn guide and spinning traction machine |
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| Country | Link |
|---|---|
| EP (1) | EP3865444B1 (en) |
| JP (1) | JP7475004B2 (en) |
| CN (1) | CN113249804A (en) |
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| JP2024009536A (en) | 2022-07-11 | 2024-01-23 | Ｔｍｔマシナリー株式会社 | Textile machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003049322A (en) * | 2001-07-31 | 2003-02-21 | Teijin Ltd | Method for melt-spinning polyester yarn |
| JP2004076236A (en) * | 2002-08-22 | 2004-03-11 | Nippon Ester Co Ltd | Yarn thread processing unit and method for cleaning the yarn thread processing unit |
| CN1608149A (en) * | 2001-12-27 | 2005-04-20 | 东洋纺织株式会社 | Spinneret, oiling device, production device and production method for synthetic fibers |
| CN202226973U (en) * | 2011-09-06 | 2012-05-23 | 江苏恒力化纤股份有限公司 | Tempering tank for industrial yarn spinning oil agent |
| CN108996317A (en) * | 2017-06-06 | 2018-12-14 | 日本Tmt机械株式会社 | yarn winding machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1161551A (en) * | 1997-08-21 | 1999-03-05 | Teijin Ltd | Oil solution-applying guide |
| JP2002309432A (en) | 2001-04-12 | 2002-10-23 | Teijin Seiki Textile Machinery Co Ltd | Spinning oil supply guide |
| JP2003201619A (en) | 2001-12-28 | 2003-07-18 | Toyobo Co Ltd | Apparatus for applying finishing agent for elastic fiber |
| JP2008303497A (en) * | 2007-06-07 | 2008-12-18 | Jtc:Kk | Oil supply guide |
| DE102016005925A1 (en) * | 2015-07-21 | 2017-01-26 | Oerlikon Textile Gmbh & Co. Kg | Preparation thread guide |
| JP7186006B2 (en) * | 2018-02-05 | 2022-12-08 | Ｔｍｔマシナリー株式会社 | Lubrication guide and spinning take-up device |
-
2020
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2021
- 2021-01-27 CN CN202110109064.5A patent/CN113249804A/en active Pending
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003049322A (en) * | 2001-07-31 | 2003-02-21 | Teijin Ltd | Method for melt-spinning polyester yarn |
| CN1608149A (en) * | 2001-12-27 | 2005-04-20 | 东洋纺织株式会社 | Spinneret, oiling device, production device and production method for synthetic fibers |
| JP2004076236A (en) * | 2002-08-22 | 2004-03-11 | Nippon Ester Co Ltd | Yarn thread processing unit and method for cleaning the yarn thread processing unit |
| CN202226973U (en) * | 2011-09-06 | 2012-05-23 | 江苏恒力化纤股份有限公司 | Tempering tank for industrial yarn spinning oil agent |
| CN108996317A (en) * | 2017-06-06 | 2018-12-14 | 日本Tmt机械株式会社 | yarn winding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3865444B1 (en) | 2024-05-01 |
| JP7475004B2 (en) | 2024-04-26 |
| EP3865444A1 (en) | 2021-08-18 |
| TWI815079B (en) | 2023-09-11 |
| JP2021127532A (en) | 2021-09-02 |
| TW202140872A (en) | 2021-11-01 |
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