CN107541825B - Textile machine - Google Patents
Textile machine Download PDFInfo
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- CN107541825B CN107541825B CN201710426467.6A CN201710426467A CN107541825B CN 107541825 B CN107541825 B CN 107541825B CN 201710426467 A CN201710426467 A CN 201710426467A CN 107541825 B CN107541825 B CN 107541825B
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- static electricity
- yarn
- textile machine
- feed roller
- roller
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
- D02G1/0266—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting false-twisting machines
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The present invention relates to a textile machine that manufactures or processes a yarn made of synthetic fibers, and suppresses the influence of static electricity to stabilize the running of the yarn. Wherein a static electricity removing mechanism (50) for removing static electricity is arranged at a charged part (18) which generates static electricity because the silk thread moves downwards in a contact state.
Description
Technical Field
The invention relates to a textile machine for producing or processing threads made of synthetic fibers.
Background
In a textile machine that processes a yarn, such as a false twist texturing machine disclosed in patent document 1, for example, a yarn running along a yarn path is processed. Therefore, static electricity is generated at a portion where the running yarn comes into contact with the yarn due to friction with the yarn. However, static electricity generally has little fatal influence, and therefore, no particular antistatic measures have been taken in textile machines.
[ patent document 1 ] Japanese patent laid-open No. 2007-277751
However, the requirements for the processing quality and the working performance of fiber machines have been increasing year by year, and in recent years, the influence of static electricity has become non-negligible. Specifically, the yarn running is unstable due to the influence of static electricity, and the threading performance is reduced, or the yarn is likely to be broken due to the yarn shaking, which causes a problem of deterioration in workability. Further, since the running of the yarn is unstable due to the influence of static electricity and the yarn does not run in the original yarn path, the yarn cannot be processed properly, and the quality of the yarn may be deteriorated.
Disclosure of Invention
The present invention has been made in view of the above problems, and an object of the present invention is to suppress the influence of static electricity, which has not been countermeasures so far, in a textile machine that manufactures or processes a yarn made of synthetic fibers, and to stabilize the running of the yarn.
The present invention is a textile machine for manufacturing or processing a yarn made of synthetic fibers, characterized in that a static electricity removing means for removing static electricity from a charged portion which generates static electricity by the yarn running in a contact state is provided.
According to the present invention, since the static electricity removing means is provided at the charged portion, the influence of the static electricity at the charged portion can be suppressed, and the running of the yarn can be stabilized.
In the present invention, the charged portion is a rotating body that rotates while contacting the yarn, and the electrostatic removing mechanism is provided to the rotating body.
In this case, although static electricity is generated by friction between the yarn and the rotating body, the static electricity removing mechanism is provided to the rotating body, and thus the static electricity can be prevented from accumulating in the rotating body.
In the present invention, the rotating body includes: a high-speed feed roller that feeds the yarn, and a low-speed feed roller that is disposed downstream of the high-speed feed roller in the yarn running direction and feeds the yarn at a slower feed speed than the high-speed feed roller in order to slacken the yarn between the high-speed feed roller and the high-speed feed roller; and at least arranging the static electricity removing mechanism on the high-speed wire feeding roller.
In the case where the yarn slacks between the high-speed yarn feeding rollers and the low-speed yarn feeding rollers, the running of the yarn slackened on the downstream side in the running direction of the yarn tends to become unstable due to the influence of static electricity accumulated on the high-speed yarn feeding rollers on the upstream side in the running direction of the yarn. Therefore, by providing the static electricity removing mechanism to the high-speed yarn feeding roller, the running of the loosened yarn can be stabilized.
For example, in the case where a twisting device for imparting twist to the yarn is provided on the upstream side of the high-speed feed roller in the yarn running direction, and a heating device for heating the yarn is provided between the high-speed feed roller and the low-speed feed roller in the yarn running direction, since the yarn heated by the heating device is in a slack state, it is effective to provide the high-speed feed roller with an electrostatic removing mechanism.
In addition, in the case where an interlacing device for imparting interlacing to the yarns is provided between the high-speed yarn feeding roller and the low-speed yarn feeding roller in the yarn running direction, since the yarns imparted with interlacing by the interlacing device are in a slack state, it is effective to provide the static electricity removing mechanism to the high-speed yarn feeding roller.
In the present invention, the static electricity removing means may be provided so as not to contact the rotating body.
When the static electricity removing mechanism comes into contact with the rotating body, there is a risk that the static electricity cannot be removed properly due to wear of the static electricity removing mechanism and the rotating body, or the frequency of replacement of parts increases. Further, since the static electricity removing mechanism is in contact with the rotating body, there is a risk that the amount of static electricity generated between the static electricity removing mechanism and the rotating body is increased inversely. However, such a problem can be avoided when the static electricity removing mechanism does not contact the rotating body.
In the present invention, the rotating body may include a rotating shaft and a roller attached to the rotating shaft and in contact with an outer peripheral surface of the wire; the electrostatic removing mechanism is provided to the rotary shaft.
By providing the electrostatic removing mechanism to the rotary shaft, the radial increase in size of the electrostatic removing mechanism can be suppressed as compared with the case where the electrostatic removing mechanism is provided to the counter roller, and the structure can be made compact.
In the present invention, the static electricity removing mechanism may include a grounded support member and a static electricity eliminating member attached to the support member so as to extend along an outer peripheral surface of the rotary shaft.
By providing the static electricity eliminating member along the outer peripheral surface of the rotating shaft, a wide region in which the static electricity eliminating member is discharged from the rotating shaft can be ensured, and static electricity can be more stably eliminated.
In the present invention, the static electricity eliminating member may be provided along an axial direction of the rotary shaft.
Thus, variation in the static charge eliminating performance in the axial direction can be suppressed, and static charge can be eliminated appropriately.
In the present invention, the conductive fibers of the static eliminating member may be exposed to the surface at a plurality of portions.
By using such a static eliminating member, discharge is caused at a plurality of exposed portions of the conductive fibers, and therefore, the static eliminating performance of the static eliminating member can be improved.
In the present invention, a cover member may be provided to cover the periphery of the static electricity eliminating member so as not to expose the static electricity eliminating member.
If dust or the like adheres to the static eliminating member, discharge to the static eliminating member is less likely to occur, and there is a risk of deterioration in discharge performance. However, by providing the cover member as described above, adhesion of dust and the like to the static eliminating member can be suppressed, and a decrease in discharge performance can be avoided.
In the present invention, the yarn made of nylon may be processed.
When a nylon yarn is processed, static electricity is particularly likely to be generated due to friction with a charged portion. Therefore, the effect of providing the static electricity removing mechanism becomes more remarkable.
Drawings
FIG. 1 is a schematic view showing a structure of a false twist processing machine according to the present embodiment;
FIG. 2 is a schematic view showing the structure of a twisting device;
FIG. 3 is a partial perspective view of the 3 rd feed roll;
FIG. 4 is a partial perspective view of the 3 rd feed roll;
fig. 5 is a sectional view showing an installation form of the static electricity eliminating mechanism and the lid member.
Description of the reference numerals: 1-false twist processing machine (textile machine); 11-1 st wire feed roller; 12-twist stopping thread guide; 13-1 st heating means; 14-a cooling device; 15-a twisting device; 16-2 nd wire feeding roller; 17-a crosser; 18-3 rd feed roll; 19-2 nd heating device; 20-4 th wire feeding roller; 41-a drive roller; 43-rotation axis; 50-a static electricity removal mechanism; 51-a support member; 52-a static elimination component; 60-a cover member; y-filament
Detailed Description
Embodiments of the present invention are described below with reference to the drawings. The present embodiment is a form in which the textile machine according to the present invention is applied to a false twist processing machine for imparting a crimp to a synthetic fiber such as nylon or polyester to produce a processed yarn having a high stretchability.
(integral Structure of false twist processing machine)
Fig. 1 is a schematic diagram showing a structure of a false twist processing machine 1 according to the present embodiment. The false twist processing machine 1 is composed of the following parts: a yarn feeding section 2 for feeding the yarn Y, a texturing section 3 for false twisting the yarn Y fed from the yarn feeding section 2, and a winding section 4 for winding the yarn Y false twisted by the texturing section 3 into a package P.
The yarn feeding section 2 has a creel base 10 for holding a plurality of yarn feeding packages Q, and feeds a plurality of yarns Y to the processing section 3. The processing section 3 is configured by arranging a 1 st feed roller 11, a twist stop yarn guide 12, a 1 st heating device 13, a cooling device 14, a twisting device 15, a 2 nd feed roller 16, a winding device 17, a 3 rd feed roller 18, a 2 nd heating device 19, and a 4 th feed roller 20 in this order from the upstream side in the running direction of the yarn. The winding unit 4 winds the yarn Y, which is false-twisted by the processing target unit 3, by the winding device 21 to form a package P.
The false twist texturing machine 1 has a main body 5 and a winding table 6 arranged at an interval in the left-right direction of fig. 1 (hereinafter referred to as "machine width direction"). The main body 5 and the winding table 6 are provided to extend substantially the same length in a direction perpendicular to the paper surface of fig. 1 (hereinafter referred to as "longitudinal direction of the body"), and are disposed to face each other. The upper part of the main body 5 and the upper part of the winding table 6 are connected by a support frame 7. Each device constituting the processing section 3 is mainly mounted on the main body 5 and the support frame 7, and an operation space 8 surrounded by the main body 5, the winding table 6, and the support frame 7 is secured. In other words, the main body 5, the winding table 6, and the support frame 7 are arranged so as to surround the operation space 8, and the yarn Y mainly travels around the operation space 8.
The false twist texturing machine 1 has a unit group called "span" including 1 set of a main body 5 and a winding table 6 arranged opposite to each other. In 1 span, each device is arranged so that false twisting can be simultaneously applied to a plurality of yarns Y running in a state of being arranged in the longitudinal direction of the machine body. The false twist processing machine 1 is configured such that the spans are arranged symmetrically in the left-right direction about a center line C of the main body 5 in the machine width direction as a symmetry axis (the main body 5 is a member common to the left and right spans), and a plurality of the spans are arranged in the machine length direction. The details of the processing portion 3 will be described below.
(processing section)
The 1 st feed roller 11 is a roller for feeding the yarn Y fed from the yarn feeding unit 2 to the 1 st heating device 13, and is disposed above the winding table 6. The 1 st feed roller 11 is configured such that a plurality of driving rollers and driven rollers, not shown, provided independently for a plurality of yarns Y fed from the yarn feeding section 2 are arranged in 1 row in the machine body longitudinal direction.
The yarn guide 12 is a member for preventing the twist applied to the yarn Y by the twisting device 15 described later from propagating upstream of the yarn guide 12 in the yarn running direction, and is disposed downstream of the 1 st feed roller 11 in the yarn running direction and upstream of the 1 st heating device 13 in the yarn running direction. The twist stop yarn guide 12 is provided independently for a plurality of yarns Y supplied from the yarn supply unit 2, and is arranged in 1 row in the machine body longitudinal direction. The specific structure of the twist-stop yarn guide 12 is not particularly limited, and the structures described in, for example, Japanese patent application laid-open Nos. 2008-544100 and 2012-102452 can be adopted.
The 1 st heating device 13 is a device for heating the yarn Y fed from the 1 st feed roller 11, and is disposed on the support frame 7. The 1 st heating device 13 extends in an oblique direction in a plane orthogonal to the longitudinal direction of the body. The twist stop yarn guide 12, the cooling device 14 and the twisting device 15 are arranged substantially along the extending direction of the 1 st heating device 13. The 1 st heating device 13 is provided in plurality for the plurality of yarns Y supplied from the yarn supply unit 2, and is arranged in 1 row in the machine body longitudinal direction.
The cooling device 14 is a device for cooling the yarn Y heated by the 1 st heating device 13, and is disposed on the downstream side of the 1 st heating device 13 in the yarn running direction and on the upstream side of the twisting device 15 in the yarn running direction. The cooling device 14 is provided independently for the plurality of yarns Y supplied from the yarn supply unit 2 and arranged in the machine body longitudinal direction.
The twisting device 15 is a device for imparting twist to the yarn Y, and is disposed on the upper portion of the main body 5. The twisting device 15 is provided independently for the plurality of yarns Y cooled by the cooling device 14, and arranged in 1 row in the machine body longitudinal direction. Details of the twisting device 15 will be described later.
The 2 nd feed roller 16 is a roller for feeding the yarn Y twisted by the twisting device 15 to the interlacing device 17, and is arranged below the twisting device 15 on the main body 5. The 2 nd feed roller 16 is configured such that a plurality of driving rollers and driven rollers, not shown, provided independently for the plurality of yarns Y twisted by the twisting device 15 are arranged in 1 line in the longitudinal direction of the machine body. Further, the speed of feeding the yarn Y by the 2 nd feed roller 16 is faster than the speed of feeding the yarn Y by the 1 st feed roller 11, and the yarn Y is stretched between the 1 st feed roller 11 and the 2 nd feed roller 16.
The interlacing device 17 is a device for imparting interlacing by ejecting air to the yarn Y, and is disposed below the 2 nd feed roller 16 on the main body 5. The interlacing device 17 is provided independently for the plurality of yarns Y fed from the 2 nd feed roller 16, and arranged in 1 line in the machine body longitudinal direction.
The 3 rd feed roller 18 is a roller for conveying the yarn Y provided with crossovers by the crossovers 17 to the 2 nd heating device 19, and is disposed below the crossovers 17 on the main body 5. The 3 rd feeding roller 18 is configured such that a plurality of driving rollers and driven rollers, not shown, provided independently for the plurality of yarns Y provided to be interlaced in the interlacing device 17 are arranged in 1 row in the machine body longitudinal direction. Further, the speed of conveyance of the yarn Y by the 3 rd feed roller 18 is slower than the speed of conveyance of the yarn Y by the 2 nd feed roller 16, and the yarn Y slacks between the 2 nd feed roller 16 and the 3 rd feed roller 18.
The 2 nd heating device 19 is a device for heating the yarn Y fed from the 3 rd feed roller 18, and is disposed below the 3 rd feed roller 18 on the main body 5. The 2 nd heating means 19 extends in the vertical direction, one for each span.
The 4 th feed roller 20 is a roller for feeding the yarn Y heat-treated by the 2 nd heating device 19 to the winding device 21, and is disposed below the winding table 6. The 4 th feed roller 20 is configured such that a plurality of driving rollers and driven rollers, not shown, provided independently for the plurality of yarns Y heat-treated by the 2 nd heating device 19 are arranged in 1 line in the longitudinal direction of the machine body. Further, the speed of conveyance of the yarn Y by the 4 th feed roll 20 is slower than the speed of conveyance of the yarn Y by the 3 rd feed roll 18, and the yarn Y slacks between the 3 rd feed roll 18 and the 4 th feed roll 20.
The processing section 3 configured as described above applies twist to the yarn Y drawn between the 1 st feed roll 11 and the 2 nd feed roll 16 by the twisting device 15. The twist formed by the twisting device 15 propagates to the twist stop guide 12, but does not propagate upstream of the twist stop guide 12 in the yarn running direction. The drawn and twisted yarn Y is heated by the 1 st heating device 13, and then cooled by the cooling device 14 to be heat-set. The false twisted yarn Y passes through the twisting device 15 and is untwisted before reaching the 2 nd feed roller 16, but since the twist of the yarn Y is heat-set as described above, the single fibers maintain a wavy false twisted state. The yarn Y is slackened between the 2 nd feed roll 16 and the 3 rd feed roll 18, and crossovers are imparted to the yarn Y by the crosser 17. The entangled yarn Y is heat-set by the 2 nd heating device 19 while being loosened between the 3 rd feed roll 18 and the 4 th feed roll 20. Finally, the yarn Y fed from the 4 th feed roller 20 is wound by the winding device 21 to form a package P.
(twisting device)
Fig. 2 is a schematic view showing the structure of the twisting device 15. The twisting device 15 of the present embodiment is a so-called friction disc type device, and is configured such that friction discs 32 are attached to 3 spindles 31. Each spindle 31 is provided with 2 friction disks 32 at intervals in the axial direction of the spindle. The friction disks 32 are offset from each other in the axial direction of the spindle between the spindles 31. The 3 spindles 31 are arranged such that their centers are located at the vertices of an equilateral triangle when viewed in the axial direction of the spindles. As a result, the twisting device 15 has a structure in which a plurality of (6 in the present embodiment) friction disks 32 are arranged in a spiral shape.
When a motor, not shown, is driven, the spindles 31 rotate, and the friction plates 32 rotate integrally with the spindles 31. Then, the thread Y is brought into contact with the peripheral surface of the rotating friction disk 32 and travels between the friction disks 32 in the substantially axial direction of the spindle, whereby twist is imparted to the thread Y.
(influence of static)
In the false twist texturing machine 1 configured as described above, there are problems that the yarn ends fail to be fed between the 3 rd yarn feeding roller 18 and the 4 th yarn feeding roller 20, the yarn chatter is large, and the occurrence rate of yarn breakage is high. The present inventors have conducted intensive studies on this problem, and as a result, found that the problem is caused by static electricity accumulated on the 3 rd feed roller 18. In practice, if static electricity is removed from the 3 rd feed roll 18, the voltage developed at the 3 rd feed roll 18 drops from about 1500 volts to less than 100 volts, stabilizing the travel of the filament Y between the 3 rd feed roll 18 and the 4 th feed roll 20. As a result, the threading property can be improved, and the workability can be improved by suppressing the occurrence of yarn breakage. Further, since the running of the yarn Y is stable, the quality of the yarn Y can be expected to be improved.
In consideration of the above results, the false twist texturing machine 1 of the present embodiment is provided with a static electricity removing means for the 3 rd feed roller 18. The following describes the static electricity removing mechanism provided on the 3 rd feed roller 18. The static electricity removing means can be provided not only to the 3 rd feed roller 18 but also to all charged portions of the false twist texturing machine 1 which are adversely affected by static electricity.
(static electricity removing mechanism)
Fig. 3 and 4 are partial perspective views of the 3 rd feed roll 18. More specifically, fig. 3 shows a state in which the cover member 45 covering the rotary shaft 43 and the cover member 60 covering the static electricity removing mechanism 50 are assembled, and the rotary shaft 43 and the static electricity removing mechanism 50 are not visible. On the other hand, fig. 4 shows a state in which the covers 45 and 60 are removed and the rotary shaft 43 and the static electricity removing mechanism 50 are exposed. In fig. 4, illustration of the driven roller 42 and the support bracket 44 is omitted.
The 3 rd feed roller 18 includes a drive roller 41 that is rotationally driven by a drive motor, not shown, and a driven roller 42 that is in contact with the drive roller 41 and rotates in accordance with the rotation of the drive roller 41. The driving roller 41 is made of a conductive material, which is a metal, and the driven roller 42 is made of an insulating material, which is a rubber. The yarn Y (not shown in fig. 3 and 4) is nipped between the driving roller 41 and the driven roller 42, and when the driving roller 41 rotates in a predetermined direction, the yarn Y is fed to the downstream side in the yarn running direction.
A plurality of driving rollers 41 are attached to a rotating shaft 43 (see fig. 4) extending in the longitudinal direction of the machine body. That is, the plurality of driving rollers 41 are supported by a common rotating shaft 43. The rotation shaft 43 is rotated by the drive motor, and the plurality of drive rollers 41 are rotated by the rotation shaft 43. The rotary shaft 43 is also made of a conductive material, which is a metal, as in the drive roller 41. A plurality of driven rollers 42 are provided along the longitudinal direction of the body corresponding to the plurality of driving rollers 41. Each driven roller 42 is rotatably supported by a support bracket 44 and a bearing, not shown, which are provided independently.
In the 3 rd feed roller 18, static electricity generated by friction with the yarn Y is hard to move to the driven roller 42, which is an insulating member, and therefore, the static electricity moves to the driving roller 41, which is a conductive member, and can move to the rotating shaft 43, which is a conductive member, via the driving roller 41. The rotary shaft 43 is rotatably supported by a bearing, not shown. The bearings supporting the driven roller 42 and the bearings supporting the rotating shaft 43 use insulating grease for lubrication, and static electricity is less likely to be discharged through these bearings. Therefore, the driving roller 41 and the rotating shaft 43 made of conductive materials are particularly likely to accumulate static electricity.
Therefore, in the present embodiment, as shown in fig. 4, in order to remove static electricity from the rotary shaft 43, a static electricity removing mechanism 50 including a support member 51 and a static electricity eliminating member 52 is provided in the vicinity of the rotary shaft 43. Fig. 5 is a sectional view showing an installation form of the static electricity eliminating mechanism 50 and the cover member 60, and is a view schematically showing a cross section orthogonal to the longitudinal direction of the body.
The static electricity eliminating mechanism 50 is composed of a metal support member 51 fixed to a metal frame 5a constituting the main body 5, and a static electricity eliminating member 52 attached to the support member 51. The support member 51 is fixed to the housing 5a and is indirectly grounded via the housing 5 a. Further, the support member 51 may be directly grounded.
As shown in fig. 5, the support member 51 includes a fixing portion 51a fixed to the housing 5a by a bolt, a holding portion 51b holding the static electricity eliminating member 52, a connecting portion 51c connecting the fixing portion 51a and the holding portion 51b, and a cover mounting portion 51d to which a cover member 60 described later is mounted.
The fixing portion 51a and the holding portion 51b face each other, and the rotation shaft 43 is located between the fixing portion 51a and the holding portion 51 b. The holding portion 51b has a flat plate shape extending in the axial direction of the rotary shaft 43, and is disposed at a position above the upper end (top) of the rotary shaft 43 by about 5mm to 10 mm. The static eliminating member 52 is a member in which conductive fibers are exposed at a plurality of portions on the surface. By providing the static electricity eliminating member 52 along the rotation shaft 43 in this way, discharge can be generated from the rotation shaft 43 to the static electricity eliminating member 52 at many locations, and static electricity can be effectively removed from the rotation shaft 43. According to the above configuration, the static electricity generated in the 3 rd feed roller 18 by the contact with the yarn Y is discharged through the drive roller 41, the rotary shaft 43, the static electricity eliminating member 52, the support member 51, and the housing 5 a. In addition, neither the support member 51 nor the static electricity eliminating member 52 is in contact with the rotary shaft 43.
The periphery of the static electricity removing mechanism 50 fixed to the housing 5a is covered with a cover member 60. The cover member 60 is formed in a substantially U-shape, and includes a cover portion 60a covering the static electricity removing mechanism 50 and a fixing portion 60b bent at a substantially right angle at one end of the cover portion 60 a. The cover member 60 is bolted to the frame 5a by the fixing portion 60b, and the other end of the cover portion 60a is bolted to the cover attachment portion 51d of the support member 51. As shown in fig. 3, the outer peripheral surface of the cover 60a is located at substantially the same position in the radial direction as the outer peripheral surface of the drive roller 41, and the static electricity eliminating mechanism 50 and the cover 60 do not protrude outward in the radial direction from the drive roller 41.
(Effect)
According to the present embodiment, since the static electricity removing mechanism 50 for removing static electricity from the charged portion (the 3 rd feed roller 18) where static electricity is generated by the yarn Y traveling in a state of contact is provided, the influence of static electricity at the charged portion can be suppressed, and the traveling of the yarn Y can be stabilized.
In the present embodiment, the charged portion is a rotating body (the 3 rd feed roller 18) that contacts the yarn Y while advancing, and the electrostatic removing mechanism 50 is provided to the rotating body. In this case, although static electricity is generated by friction between the yarn Y and the rotating body, the static electricity removing mechanism 50 is provided to the rotating body, and thus the static electricity can be prevented from being accumulated on the rotating body.
In the present embodiment, the rotating body includes a high-speed feed roller (3 rd feed roller 18) that feeds the yarn Y and a low-speed feed roller (4 th feed roller 20) that is disposed downstream of the high-speed feed roller in the yarn running direction and feeds the yarn Y at a slower feed speed than the high-speed feed roller in order to slacken the yarn Y between the high-speed feed roller and the high-speed feed roller, and the static electricity removing mechanism 50 is provided at least for the high-speed feed roller. In this way, when the yarn Y is slackened between the high-speed yarn feeding rollers and the low-speed yarn feeding rollers, the running of the yarn Y slackened on the downstream side in the running direction of the yarn is likely to be unstable due to the influence of static electricity accumulated on the high-speed yarn feeding rollers on the upstream side in the running direction of the yarn. Therefore, by providing the static electricity removing mechanism 50 to the high-speed yarn feeding roller, the running of the loosened yarn Y can be stabilized.
In the present embodiment, a twisting device 15 for imparting twist to the yarn Y is provided on the upstream side in the yarn running direction of the high-speed feed roller (3 rd feed roller 18), and a 2 nd heating device 19 for heating the yarn Y is provided between the high-speed feed roller and the low-speed feed roller (4 th feed roller 20) in the yarn running direction. In this case, since the yarn Y heated by the 2 nd heating device 19 is in a slack state, the yarn Y is likely to be shaken on the downstream side in the yarn running direction of the high-speed yarn feeding roller, and it is particularly effective to provide the static electricity removing mechanism 50 to the high-speed yarn feeding roller.
In the present embodiment, the static electricity removing mechanism 50 is provided so as not to contact the rotating body (the 3 rd feed roller 18, particularly, the rotating shaft 43). When the static electricity removing mechanism 50 is in contact with the rotating body, there is a risk that static electricity cannot be removed properly due to wear of the static electricity removing mechanism 50 and the rotating body, or the frequency of replacement of parts increases. Further, since the static electricity removing mechanism 50 is in contact with the rotating body, there is a risk of inversely increasing the amount of static electricity generated between the static electricity removing mechanism 50 and the rotating body. However, when the static electricity removing mechanism 50 is not in contact with the rotating body, abrasion of the static electricity removing mechanism 50 and the rotating body can be prevented, and the above-described problem can be avoided.
In the present embodiment, the rotating body (the 3 rd feed roller 18) has a structure including a rotating shaft 43 and a roller 41 attached to the rotating shaft 43 and having the yarn Y in contact with the outer peripheral surface thereof, and the rotating shaft 43 is provided with an electrostatic removing mechanism 50. By providing the electrostatic removing mechanism 50 on the rotary shaft 43 in this way, the electrostatic removing mechanism 50 can be prevented from being increased in size in the radial direction, as compared with the case where the counter roller 41 is provided, and the structure can be made compact.
In the present embodiment, the static electricity eliminating mechanism 50 has a structure including a support member 51 that is grounded and a static electricity eliminating member 52 that is attached to the support member 51 along the outer peripheral surface of the rotary shaft 43. By providing the static electricity eliminating member 52 along the outer peripheral surface of the rotating shaft 43, a wide region in which the static electricity is discharged from the rotating shaft 43 to the static electricity eliminating member 52 can be ensured, and static electricity can be removed more firmly.
In the present embodiment, the static eliminating member 52 is provided along the axial direction of the rotating shaft 43, so that it is possible to suppress variations in discharge performance in the axial direction and to perform appropriate discharge.
In the static eliminator 52 of this embodiment, discharge occurs at a plurality of exposed portions of the conductive fibers, and therefore, the static eliminating performance of the static eliminator can be improved.
In the present embodiment, a cover member 60 is provided to cover the static electricity eliminating member 52 so as not to expose it. When dust or the like adheres to the static electricity eliminating member 52, discharge to the static electricity eliminating member 52 is less likely to occur, and the static electricity eliminating performance may be degraded. However, by providing the cover member 60 as described above, adhesion of dust and the like to the static eliminating member 52 can be suppressed, and a decrease in static eliminating performance can be avoided.
In addition, when the nylon yarn Y is processed, static electricity is particularly likely to be generated due to friction with a charged portion. Therefore, the effect of providing the static electricity removing means 50 in the false twist processing machine 1 according to the present embodiment is more remarkable when processing the yarn Y made of nylon.
(other embodiments)
Although the embodiments of the present invention have been described above, the form in which the present invention can be applied is not limited to the above-described embodiments, and appropriate modifications can be made without departing from the spirit of the present invention as will be described below by way of example.
For example, the present invention is applied to the false twist processing machine 1 in the above embodiment. However, the present invention may be applied to a textile machine that produces or processes a yarn made of synthetic fibers, such as a false twist processing machine or a spinning and drawing device having a configuration other than the above-described embodiments.
As also mentioned in the above embodiment, the portion where the static electricity removing mechanism 50 is provided is not limited to the 3 rd feed roller 18. For example, in the crosser 17, since the yarn Y is set in a slack state in order to appropriately impart crossovers, the running of the yarn Y is likely to be unstable due to the influence of static electricity accumulated on the 2 nd feed roller 16 disposed on the upstream side in the yarn running direction of the crosser 17. Therefore, it is also effective to provide the electrostatic removing mechanism 50 to the 2 nd feed roller 16. In this case, the 2 nd wire feed roll 16 corresponds to the "high speed wire feed roll" of the present invention, and the 3 rd wire feed roll 18 corresponds to the "low speed wire feed roll" of the present invention. The basic structure of the 2 nd feed roll 16 is the same as that of the 3 rd feed roll 18.
Further, if static electricity is generated in the friction disc type twisting device 15, the running of the yarn Y in the twisting device 15 becomes unstable, and the yarn Y does not pass through a predetermined yarn path, and there is a risk that proper twist cannot be imparted. Therefore, it is also effective to provide the static electricity removing mechanism 50 to the twisting device 15.
Alternatively, the static electricity removing mechanism 50 may be provided at an appropriate charged portion such as the 1 st feed roller 11, the 4 th feed roller 20, the twist stopping guide 12, or the like.
The specific configuration of the static electricity removing mechanism 50 is not limited to the configuration described in the above embodiment. For example, although the static electricity removing mechanism 50 is provided to the rotary shaft 43 of the driving roller 41 in the above embodiment, it may be provided to the driving roller 41. Further, the static electricity removing mechanism 50 may be configured to contact the charged portion. Further, a metal needle for static elimination or the like may be disposed near the charged site, and discharge may be generated from the charged site to the metal needle or the like. The static eliminating member 52 may be, for example, a thread woven with conductive fibers or tied into a string. Since the string-like thread is bound, the support member 51 can be easily attached. Specifically, the wire is looped around the support member 51, bonded to the support member 51 with a conductive adhesive, or fixed to the support member 51 with an appropriate wire or the like, thereby facilitating attachment of the static eliminating member 52 to the support member 51.
Further, although the twisting device 15 is a friction disc type device in the above embodiment, a belt type holding twisting device such as that disclosed in japanese patent application laid-open No. 2010-65354 may be applied.
Claims (16)
1. A textile machine for producing or processing threads made of synthetic fibers, characterized in that,
a static electricity removing mechanism for removing static electricity from a charged portion which generates static electricity as the yarn descends in a contact state;
the charged part is a rotating body which rotates while contacting the yarn,
the electrostatic removing mechanism is provided to the rotating body;
the rotating body includes:
a high-speed feed roller for conveying the thread, and
a low-speed feed roller disposed downstream of the high-speed feed roller in the yarn running direction and configured to feed the yarn at a lower feed speed than the high-speed feed roller so as to slacken the yarn between the high-speed feed roller and the low-speed feed roller;
the textile machine is provided with the static electricity removing mechanism for removing static electricity at least from the high-speed feeding roller.
2. The textile machine according to claim 1, wherein a twisting device for imparting twist to said filaments is provided on the upstream side in the direction of travel of said filaments of said high-speed feed rolls, and a heating device for heating said filaments is provided between said high-speed feed rolls and said low-speed feed rolls in the direction of travel of said filaments.
3. The textile machine of claim 1 wherein an interlacing device is provided between said high speed feed rolls and said low speed feed rolls in the direction of travel of the filaments to impart interlacing to the filaments.
4. The textile machine of claim 1, wherein the static electricity removing means is provided so as not to contact the rotating body.
5. The textile machine of claim 2, wherein the static electricity removing means is provided so as not to contact the rotating body.
6. The textile machine of claim 3, wherein the static electricity removing means is provided so as not to contact the rotating body.
7. The textile machine according to any of claims 1 to 6, wherein said rotary body is formed with:
a rotating shaft, and
a roller mounted on the rotating shaft, the wire contacting an outer peripheral surface thereof;
the electrostatic removing mechanism is provided to the rotary shaft.
8. The textile machine of claim 7, wherein said static electricity removing mechanism is configured to have:
a grounded support member, and
and a static electricity eliminating member attached to the support member so as to be along an outer peripheral surface of the rotating shaft.
9. The textile machine of claim 8, wherein the static elimination component is disposed along an axial direction of the rotating shaft.
10. The textile machine according to claim 8, wherein the conductive fibers of the static eliminating member are exposed to the surface at a plurality of portions.
11. The textile machine according to claim 9, wherein the conductive fibers of the static eliminating member are exposed to the surface at a plurality of portions.
12. The textile machine according to claim 8, wherein a cover member is provided to cover a periphery of the static electricity eliminating member so that the static electricity eliminating member is not exposed.
13. The textile machine according to claim 9, wherein a cover member is provided to cover a periphery of the static electricity eliminating member so that the static electricity eliminating member is not exposed.
14. The textile machine according to claim 10, wherein a cover member is provided to cover a periphery of the static electricity eliminating member so that the static electricity eliminating member is not exposed.
15. The textile machine according to claim 11, wherein a cover member is provided to cover a periphery of the static electricity eliminating member so that the static electricity eliminating member is not exposed.
16. A fibre machine according to any of claims 1 to 6, characterized in that said threads made of nylon are processed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016126468A JP6697963B2 (en) | 2016-06-27 | 2016-06-27 | Textile machinery |
| JP2016-126468 | 2016-06-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107541825A CN107541825A (en) | 2018-01-05 |
| CN107541825B true CN107541825B (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710426467.6A Active CN107541825B (en) | 2016-06-27 | 2017-06-08 | Textile machine |
Country Status (4)
| Country | Link |
|---|---|
| EP (2) | EP3974568B1 (en) |
| JP (1) | JP6697963B2 (en) |
| CN (1) | CN107541825B (en) |
| TW (1) | TWI735605B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110923892A (en) * | 2019-11-22 | 2020-03-27 | 杭州昌翔化纤新材料有限公司 | Static device is led to hot box |
| CN112239904A (en) * | 2020-10-22 | 2021-01-19 | 河北瑞日机电科技有限公司 | Upper pin assembly capable of leading out static electricity of main drafting zone |
| JP2024029748A (en) | 2022-08-22 | 2024-03-06 | Ｔｍｔマシナリー株式会社 | Yarn processing apparatus and yarn processing apparatus system |
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| CN203513870U (en) * | 2013-09-17 | 2014-04-02 | 宜昌经纬纺机有限公司 | Glass fiber twisting equipment |
| CN204325617U (en) * | 2014-12-11 | 2015-05-13 | 徐州华奥纺织有限公司 | A kind of static elimination roller |
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| CN204168573U (en) * | 2014-09-10 | 2015-02-18 | 新昌县远德纺织机械有限公司 | The adjustable Destaticizing device of a kind of weaving loom |
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- 2017-06-08 CN CN201710426467.6A patent/CN107541825B/en active Active
- 2017-06-19 EP EP21206657.5A patent/EP3974568B1/en active Active
- 2017-06-19 EP EP17176573.8A patent/EP3266913B1/en active Active
- 2017-06-21 TW TW106120777A patent/TWI735605B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US2690628A (en) * | 1951-05-11 | 1954-10-05 | Int Harvester Co | Glass fiber drawing mechanism with means for accentuating strand discharge |
| CN202127542U (en) * | 2011-07-21 | 2012-01-25 | 孙洛雷 | Static electricity eliminator |
| CN103482411A (en) * | 2012-06-11 | 2014-01-01 | 日本Tmt机械株式会社 | Winding tube, packages wound on the tube and method for producing packages |
| CN203513870U (en) * | 2013-09-17 | 2014-04-02 | 宜昌经纬纺机有限公司 | Glass fiber twisting equipment |
| CN204325617U (en) * | 2014-12-11 | 2015-05-13 | 徐州华奥纺织有限公司 | A kind of static elimination roller |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3266913B1 (en) | 2023-01-18 |
| TWI735605B (en) | 2021-08-11 |
| JP6697963B2 (en) | 2020-05-27 |
| JP2018003167A (en) | 2018-01-11 |
| EP3974568A1 (en) | 2022-03-30 |
| CN107541825A (en) | 2018-01-05 |
| TW201800632A (en) | 2018-01-01 |
| EP3266913A1 (en) | 2018-01-10 |
| EP3974568B1 (en) | 2023-10-04 |
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