CN108315861B - Yarn guiding restraint fork and weft accumulator - Google Patents
Yarn guiding restraint fork and weft accumulator Download PDFInfo
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- CN108315861B CN108315861B CN201810300778.2A CN201810300778A CN108315861B CN 108315861 B CN108315861 B CN 108315861B CN 201810300778 A CN201810300778 A CN 201810300778A CN 108315861 B CN108315861 B CN 108315861B
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- yarn
- restraint
- weft
- support rod
- yarn guide
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- 230000000452 restraining effect Effects 0.000 claims abstract description 38
- 238000003780 insertion Methods 0.000 claims description 20
- 230000037431 insertion Effects 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 11
- 239000000919 ceramic Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 35
- 230000008569 process Effects 0.000 abstract description 34
- 238000009941 weaving Methods 0.000 abstract description 20
- 239000004744 fabric Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000004753 textile Substances 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 9
- 230000009471 action Effects 0.000 description 7
- 229910010293 ceramic material Inorganic materials 0.000 description 7
- 230000002829 reductive effect Effects 0.000 description 6
- 238000003860 storage Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009987 spinning Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
- D03D47/36—Measuring and cutting the weft
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Woven Fabrics (AREA)
- Looms (AREA)
Abstract
The application relates to the technical field of textile, in particular to a yarn guiding restraint fork and a weft accumulator. The yarn guide restraint fork comprises a mounting piece, a first supporting rod, a second supporting rod and a restraint piece, wherein the mounting piece comprises a first fixing part and a second fixing part which are fixedly connected to the sleeving part; the sleeving part is provided with a mounting hole, and the mounting piece is inserted on the driving shaft of the weft accumulator through the mounting hole; the first support rod comprises a first body connected with the first fixing part and obliquely arranged relative to the axis of the mounting hole, and a support rod extending from the first body along the axis direction of the mounting hole, and the end part of the support rod is provided with a fixing part in an extending way; the second support rod comprises a second body which is arranged in a hollow mode and connected with the second fixing part, and a yarn outlet part which is communicated with the second body; the restraining member is mounted on the holding portion, and has a yarn guide restraining ring hole for guiding and restraining the weft yarn. The yarn guiding restraint fork can prevent flaws from appearing on the cloth cover in the weaving process or weft yarns from being torn off, thereby being beneficial to high-efficiency and high-quality weaving.
Description
Technical Field
The application relates to the technical field of textile, in particular to a yarn guiding restraint fork and a weft accumulator.
Background
In the weaving process, a weft accumulator is usually adopted to store weft yarns in advance, so that the weft yarns wound on the weft accumulator in advance are released to a preset position freely by applying a certain driving force to the weft yarns through the weft insertion body in the subsequent weaving process. However, during the weft yarn flying process, even if the weft yarn pre-stored on the weft accumulator is released, the flying weft yarn still has a large moving speed, and if the weft yarn is suddenly stopped, the phenomenon that the weft yarn is torn off may occur, which is unfavorable for the continuous performance of the spinning work.
Disclosure of Invention
The application provides a yarn guiding restraint fork and a weft accumulator, which are used for solving the problem that weft yarns are easily torn off in the current spinning process, so that the continuous spinning work is not facilitated.
A first aspect of the present application provides a yarn guide restraint fork mounted on a weft accumulator, comprising:
The mounting piece comprises a sleeving part, a first fixing part and a second fixing part, wherein the first fixing part and the second fixing part are fixedly connected to two sides of the sleeving part; the sleeving part is provided with a mounting hole, and the mounting piece is inserted into the driving shaft of the weft accumulator through the mounting hole;
The first support rod comprises a first body and a support rod, the first body is connected with the first fixing part and is obliquely arranged relative to the axis of the mounting hole, the support rod extends from the first body along the axis direction of the mounting hole, and the end part of the support rod extends to form a fixing part;
the second support rod comprises a second body and a yarn outlet part, the second body is arranged in a hollow mode and is connected with the second fixing part, the second body is used for threading, the second body is obliquely arranged relative to the axis, and the yarn outlet part is connected and communicated with the second body;
And the restraint piece is arranged on the fixing part and is provided with a yarn guiding restraint ring hole for guiding and restraining the weft yarns.
Preferably, the holding part is provided with a holding hole, and the holding hole is transversely arranged;
the axis of the yarn guiding restraint ring hole is perpendicular to the axis of the fixing hole.
Preferably, the restraining member is made of a smooth ceramic material or porcelain-like material.
Preferably, the restraint member includes a retaining rod and a yarn guiding body, the retaining rod is fixedly embedded in the yarn guiding body, the yarn guiding body has the yarn guiding restraint ring hole, and the cross section of the yarn guiding body is an elliptical surface.
Preferably, the restraint comprises a holding rod and a yarn guiding body, and the holding rod and the holding part are connected in an adjustable way so as to adjust the distance between the yarn guiding body and the holding part.
Preferably, the first body and the second body are symmetrically arranged, and the included angle between the axes of the first body and the second body is 95-105 degrees.
Preferably, the ratio of the length of the support rod to the length of the first body is 3:7-3:9.
Preferably, the supporting rod is of a circular columnar structure, and the length of the yarn outlet part is smaller than that of the supporting rod.
Preferably, the sleeving part, the first fixing part and the second fixing part are integrally cast, cambered surface avoiding parts are arranged between the first fixing part and the sleeving part, and the first fixing part and the second fixing part are provided with insertion holes and locking holes;
the first support rod and the second support rod are made of light materials and are respectively inserted and fixed in the insertion holes of the first fixing part and the second fixing part.
Preferably, the restraint member is disposed on a side of the first strut near the sleeving portion.
The second aspect of the present application also provides a weft accumulator, which comprises a housing, a driving shaft, a yarn carrier and the yarn guiding restraint fork provided by any one of the above, wherein the driving shaft and the yarn guiding restraint fork are both installed on the housing, the yarn carrier is installed on the driving shaft, and the yarn guiding restraint fork is arranged between the housing and the yarn carrier.
The technical scheme provided by the application can achieve the following beneficial effects:
The yarn guide restraint fork provided by the application is applied to the weft accumulator, when the pre-stored weft yarn on the weft accumulator is about to be guided and wound, the weft yarn interacts with the yarn guide restraint fork, and certain acting force can be applied to the flying weft yarn through the yarn guide restraint ring hole of the restraint member so as to restrain the flying weft yarn, so that the flying speed of the weft yarn is reduced to the weft accumulating speed of the weft accumulator within a certain period of time, the tension peak value of the weft yarn when the weft yarn stops is relatively smaller, the weft yarn is prevented from being torn due to speed mutation, the cloth cover is ensured to have higher weaving quality, and the smooth proceeding of the spinning work is ensured.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
FIG. 1 is a schematic view of a yarn guide restraint fork according to an embodiment of the present application;
FIG. 2 is an exploded view of a yarn guide restraint fork according to an embodiment of the present application;
FIG. 3 is a side view of a yarn guide restraint fork according to an embodiment of the present application;
fig. 4 is a schematic view of a part of a structure of a weft accumulator according to an embodiment of the present application.
Reference numerals:
1-a housing;
2-mounting;
22-a sleeving part;
222-mounting holes;
224-arc surface avoiding part;
24-a first fixing part;
242-inserting holes;
26-a second fixing portion;
262-locking holes;
28-screws;
4-a first strut;
42-a first body;
422-a clamping section;
44-a support bar;
46-a holder;
462-a holding hole;
6-a second strut;
62-a second body;
64-yarn outlet part;
642-a yarn outlet;
8-restraint;
82-a holding rod;
84-yarn guiding body;
842-yarn guiding constraint ring hole;
844-scarf joint holes;
9-creels;
10-weft yarns;
11-yarn dividing device.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
Detailed Description
The application will now be described in further detail with reference to specific examples thereof in connection with the accompanying drawings.
As shown in fig. 1-3, an embodiment of the present application provides a guide restraint fork mounted on a weft accumulator as shown in fig. 4 for storing a weft yarn 10 during a weaving process. The yarn guiding restraint fork comprises a mounting piece 2, a first supporting rod 4, a second supporting rod 6 and a restraint piece 8, wherein the mounting piece 2 comprises a sleeving part 22, a first fixing part 24 and a second fixing part 26, the sleeving part 22 is provided with a mounting hole 222, the mounting piece 2 can be inserted and fixed on a driving shaft (not shown in the figure) of the weft accumulator by means of the mounting hole 222 in the mounting process of the yarn guiding restraint fork, and correspondingly, the mounting hole 222 can be provided with a special-shaped hole so as to ensure that the mounting hole and the driving shaft can form a relatively static relation; the first fixing portion 24 and the second fixing portion 26 are fixedly connected to two sides of the sleeving portion 22, and the first fixing portion 24 and the second fixing portion 26 are respectively used for fixing the first supporting rod 4 and the second supporting rod 6; specifically, the mounting member 2 may be formed by integrally forming to ensure that the first fixing portion 24 and the second fixing portion 26 form a fixed connection with the sleeve portion 22, or may be fixedly connected to the first fixing portion 24 (or the second fixing portion 26) and the sleeve portion 22 by riveting, screwing or clamping, or the like; in order to ensure that the mounting member 2 has sufficient structural strength, the mounting member 2 may be made of a metallic material having high structural strength; the first supporting rod 4 comprises a first body 42 and a supporting rod 44, wherein the first body 42 is fixedly connected with the first fixing part 24, and the first body 42 and the first fixing part are in a fixed connection relationship by adopting a welding mode or a connecting piece connection mode; the support bar 44 and the first body 42 may be integrally formed, and the support bar 44 may be formed to extend from an end of the first body 42 along a direction in which an axis of the mounting hole 222 is located, which may improve a connection strength between the support bar 44 and the first body 42; in order to facilitate the installation of the restraint 8, preferably, the end of the supporting rod 44 is provided with a holding part 46 in an extending way, and accordingly, the integrally formed holding part 46 and the supporting rod 44 can also promote the connection stability between the two; similarly, the second supporting rod 6 may be disposed in such a manner that the second body 62 in the second supporting rod 6 is hollow, and the space inside the second body is communicated with the mounting hole 222 of the sleeving part 22, so as to implement the pre-setting and subsequent releasing operations of the weft yarn 10, and the weft yarn 10 can be threaded through the yarn outlet hole 642 of the yarn outlet part 64. By arranging the second body 62 obliquely with respect to the axis of the mounting hole 222, the yarn guiding rod can more easily penetrate into the inner space of the second body 62 through the shaft hole of the housing 1 during the manual yarn threading process, and accordingly, in order to make the whole structure of the yarn guiding restraining fork more symmetrical, the first body 42 is also arranged obliquely with respect to the axis of the mounting hole 222; the yarn outlet 64 can also be used for installing other components possibly involved in the weft storing process, and the yarn outlet 64 is fixed to the end of the second body 62; in particular, the first and second struts 4, 6 may be made of the same non-magnetically conductive and high resistivity material to prevent the yarn guide restraining fork from rotating in the strongly magnetic region to generate eddy currents, which adversely affects the weaving operation; in order to reduce the centrifugal force generated by the first support rod 4 and the second support rod 6 as much as possible, both can be made of light materials, and in order to balance and reduce the centrifugal force generated by the first body 42 and the second body 62 as much as possible, the structures of the first body 42 and the second body 62 can be identical, both can be provided as hollow structures, and the cross sections of the first body and the second body can be elliptical ring surfaces or circular ring surfaces, etc.; the first supporting rod 4 and the first fixing part 24, and the second supporting rod 6 and the second fixing part 26 can be fixedly connected in various manners, and correspondingly, the supporting rod 44 is arranged on the first supporting rod 4, so that the whole structure of the yarn guiding restraining fork can be more symmetrical by the yarn outlet part 64 arranged on the second supporting rod 6, and the damage caused by uneven stress of each part in the yarn guiding restraining fork due to different centrifugal forces generated by the first supporting rod 4 and the second supporting rod 6 in the rotating process of the yarn guiding restraining fork can be further prevented; in the weft insertion process of weaving work, in order to generate restraint action on the weft yarn 10, the restraint 8 is provided with a restraint 8, the restraint 8 is installed on the fixing part 46, the restraint 8 is provided with a guide restraint ring hole 842 for guiding and restraining the weft yarn 10, the weft yarn 10 can be penetrated into the guide restraint ring hole 842 of the restraint 8 in advance in the weaving process, a certain amount of weft yarn 10 is firstly stored on a yarn frame 9 of the weft accumulator under the action of the guide restraint, and the weft yarn 10 is freely released under the action of a weft insertion body (not shown) when the weft insertion work starts, so that the weft yarn 10 pre-stored on the yarn frame 9 is carried away by one circle, and when the weft yarn 10 wound on the yarn frame 9 reaches the guide restraint ring hole 842, the guide restraint fork is driven by a servo driving system (not shown in the figure) in the weft accumulator to rotate, so that the speed of the weft yarn 10 with high speed is limited to fly, and the weft yarn 10 is lowered to the speed of the weft accumulator in a certain time period; specifically, the binding element 8 and the holding portion 46 may be connected by screwing or clamping, and the surface of the binding element 8 may be made smooth as much as possible in order to minimize friction between the binding element 8 and the weft yarn 10.
As can be seen from the above, in the weaving method provided by the present application, the weft yarn 10 is made to pass through the yarn guiding and restraining loop hole of the yarn guiding and restraining fork in advance, during the weaving process, a certain amount of weft yarn 10 is pre-stored on the creel 9, then the weft yarn 10 pre-stored on the creel 9 is released freely to the preset position under the action of the weft insertion body, when the weft yarn 10 on the creel 9 is tensioned in the yarn guiding and restraining loop hole, the yarn guiding and restraining fork generates a certain restraining action to the weft yarn 10 in the free releasing state, thereby gradually reducing the flying speed of the weft yarn 10, so that the tension peak value of the weft yarn 10 is relatively smaller when the release of the weft yarn 10 is stopped, thereby preventing the occurrence of flaws on the cloth cover or the occurrence of the phenomenon that the weft yarn 10 is torn off, and further ensuring the smooth weaving work.
In detail, during weaving, the accumulator is operated as an auxiliary tool of the loom, and the accumulator works synchronously with the loom, and provides raw material for the weft yarn 10 for the normal operation of the loom, for example, the amount of weft yarn 10 required for one cycle of operation of the loom is stored by rotating the yarn guide restraint fork in the accumulator for a plurality of turns, and during the operation of the loom, the yarn guide restraint fork continuously works to store the weft yarn 10 on the creel 9 continuously, and the specific number of turns rotated by the yarn guide restraint fork is determined by the specification of the fabric to be woven.
In the whole process of storing the weft yarn-releasing the weft yarn-restraining weft yarn, a yarn guiding restraint fork for storing the weft yarn 10 continuously rotates, the weft yarn 10 is wound on a creel 9, when the quantity of the weft yarn 10 prestored on the creel 9 reaches a certain value, the weft yarn 10 enters a free release process under the action of a weft insertion body, the speed of the weft yarn 10 continuously increases, the release process of the weft yarn 10 is divided into a plurality of stages, and the speed of the weft yarn 10 continuously increases from zero in the first stage, and the quantity of the weft yarn 10 on the creel 9 still increases because the speed of releasing the weft yarn 10 is smaller than the speed of storing the weft yarn 10 at the moment; the second stage, starting from the moment when the release speed of the weft yarn 10 is greater than the storage speed of the weft yarn 10, the quantity of the weft yarn 10 wound on the creel 9 is greater than the quantity of the weft yarn 10 wound on the creel 9 again, in which process the residual quantity of the weft yarn 10 on the creel 9 is continuously reduced, the stage continues until the weft yarn 10 wound on the guide fork 9 newly is tensioned by the weft yarn 10 in front of the third stage, the weft yarn 10 is tensioned on the guide fork, the release speed of the weft yarn 10 is gradually reduced within a certain time under the action of the guide fork until the end of a weft insertion working process, at which time the quantity of the weft yarn 10 wound on the guide fork 9 is just equal to the quantity of the weft yarn 10 released under the action of the weft insertion body, and the released weft yarn 10 synchronously enters the loom to finish the weaving work.
In order to make the effect of restraining the weft yarn 10 by the restraint 8 better, the holding portion 46 is preferably provided with a holding hole 462, so that the holding hole 462 is transversely arranged, and the axis of the yarn guiding restraint ring 842 is perpendicular to the axis of the holding hole 462. Specifically, the holding hole 462 may be formed by drilling, or the holding hole 462 may be directly formed on the holding portion 46 during the manufacturing process of the supporting rod 44, and the holding hole 462 may be a round hole, a square hole or a hole with other shape, accordingly, since the restraint member 8 is connected to the holding portion 46 through the holding hole 462, the shape of the structure on the restraint member 8 matching with the holding hole 462 is adapted to the shape of the holding hole 462; the holding hole 462 is arranged laterally, that is, the shortest connection between the center of the holding hole 462 and the axis of the mounting hole 222 coincides with the axis of the holding hole 462, and the axis of the holding hole 462 is arranged perpendicular to the axis of the mounting hole 222; by arranging the axis of the yarn guiding and restraining ring hole 842 perpendicular to the axis of the holding hole 462, the matching angle between the two is more gentle when the weft yarn 10 wound from the creel 9 flies far away from the yarn guiding and restraining fork after passing through the yarn guiding and restraining ring hole 842 in the process of guiding or restraining the weft yarn 10 through the yarn guiding and restraining ring hole 842 of the restraint 8; meanwhile, the plane of the yarn guiding restraint ring 842 of the restraint member 8 arranged in this way is always perpendicular to the tangential plane of the creel 9 during the weft storage process, which is beneficial to pre-storing the weft yarns 10 on the creel 9.
In a preferred embodiment, the restraint member 8 can be made of a smooth alumina ceramic material or a porcelain-like material, the restraint member 8 is made of the ceramic material, the smoothness of the surface of the restraint member can be improved, and the ceramic material has higher wear resistance; the porcelain-like material can be a material formed by compounding a plurality of materials. In addition, the yarn discharging portion 64 may be made of such a ceramic material, and the outer surface of the yarn discharging portion 64 may be set as smooth as possible to prevent excessive friction between the weft yarn 10 and the yarn discharging portion 64 from interfering with the yarn discharging process; the yarn outlet 642 may be formed in a circular or oval shape.
Further, the restraint 8 includes a holding rod 82 and a yarn guide 84, the holding rod 82 can be fitted and fixed to the yarn guide 84, the yarn guide 84 has a yarn guide restraint loop 842, and in order to further balance the restraint and guide effect of the yarn guide restraint loop 842 on the weft yarn 10, it is preferable that the cross section of the yarn guide 84 be elliptical. Specifically, the yarn guiding body 84 may be made of alumina ceramic material, the holding rod 82 may be made of metal or ceramic material, etc., the yarn guiding body 84 may be provided with an engagement hole 844 engaged with the holding rod 82, and the two may be connected by using glass solder as an intermediate layer, or fixedly connected by soldering or bonding, etc.; the fact that the cross section of the yarn guiding body 84 is an elliptical surface is specifically understood that the cross section of the yarn guiding body 84 cut by the plane of the straight line where the radius of the yarn guiding body is located includes one or two elliptical surfaces, and by providing the outer circumferential surface of the yarn guiding constraint ring 842 with such a structure, the blocking effect of the yarn guiding body 84 on the weft yarn 10 in the process of guiding the weft yarn 10 can be relatively reduced while the constraint effect is ensured, so that the guiding effect of the yarn guiding body 84 on the weft yarn 10 is improved, and the abrasion of the weft yarn 10 and the yarn guiding body 84 in the weft storage process is reduced.
Further, the restraint 8 includes a retaining rod 82 and a yarn guiding body 84, during the weft insertion process, the angle formed between the flying weft yarn section and the weft yarn section located at the downstream of the yarn guiding restraint ring 842 directly determines the restraint force of the yarn guiding restraint fork on the flying weft yarn 10, and the weft insertion process is also influenced by factors such as the thickness of the weft yarn 10 and the initial flying speed of the weft yarn 10, preferably, the restraint 8 and the retaining portion 46 can form an adjustable connection relationship, thereby achieving the purpose of adjusting the distance between the yarn guiding body 84 and the retaining portion 46, so that the angle between the two weft yarn sections can be adjusted, thereby achieving the purpose of adjusting the restraint force of the yarn guiding restraint fork on the flying weft yarn 10, and ensuring the implementation of weft insertion work; in addition, the distance between the yarn guide 84 and the holding portion 46 can be adjusted, and the distance between the yarn guide 84 and the yarn frame 9 can be correspondingly adjusted according to the size (or diameter) change of the yarn frame 9 during the weft storage process, so that the weft storage operation can be performed more reliably and with higher quality. Specifically, the holding hole 462 may be provided as a threaded hole, and the outer circumferential surface of the holding rod 82 may be provided with external threads, so that the retaining rod 82 and the holding portion 46 form a threaded connection, so that the distance between the restraint 8 and the holding portion 46 may be adjusted, so that in the weaving work, the distance between the yarn guide 84 and the holding portion 46 may be correspondingly adjusted according to factors such as the thickness, the material, and the initial flying speed of the weft yarn 10, so as to ensure that weft yarns 10 with different thicknesses or initial speeds can be freely released to a preset position.
In order to prevent damage to the mounting member 2 due to an excessive difference between forces applied to the mounting member 2 by the first body 42 and the second body 62, specifically, the first body 42 and the second body 62 may be symmetrically disposed during formation of the first body 42 and the second body 62, and both may be symmetrically disposed about a plane passing through the axis of the mounting hole 222, so that centrifugal forces generated by the first body 42 and the second body 62 are almost uniform during weaving. Preferably, an included angle between the two can be set to be between 95 and 105 degrees, so that in the process of realizing the self function of the two, the convenience of manual yarn threading of a worker is improved, and the working efficiency of the weaving process is further improved; meanwhile, the angle between the first body 42 and the second body 62 is kept between 95 ° and 105 °, and the space occupied by the interior installation space of the weft accumulator, specifically the space in the cavity generated by the housing 1 of the weft accumulator, can be as small as possible. In a more preferred embodiment, the angle between the first body 42 and the second body 62 may be 100 °, i.e. both the two are 50 ° with respect to the axis of the mounting hole 222, which is more convenient for hand threading, and allows the entire yarn guide restraining fork to be more closely mounted in the cavity formed by the housing 1.
Since the supporting rod 44 is disposed obliquely with respect to the first body 42, and in order to ensure that the restraining member 8 mounted on the supporting rod 44 can better perform its guiding and restraining actions on the weft yarn 10, the supporting rod 44 needs to have a certain length, obviously, the longer the supporting rod 44 is, the greater the centrifugal force generated by the supporting rod is, in order to reduce the magnitude of the supporting force generated by the supporting rod 44 as much as possible, alternatively, the ratio of the length of the supporting rod 44 to the length of the first body 42 may be 3:7-3:9, more preferably, the ratio of the length of the supporting rod 44 to the length of the first body 42 may be 3:8, which is also convenient for the weft storing work.
Further, the supporting rod 44 may be provided in a circular column structure to reduce resistance generated when it rotates, and in consideration of the fact that other components may need to be mounted on the yarn discharging part 64, in order to prevent the normal operation of the weft accumulator from being affected by the excessively long total length of the yarn discharging part 64 after the other components are mounted, it is preferable that the length of the yarn discharging part 64 is smaller than that of the supporting rod 44, and accordingly, in order to balance centrifugal force generated by the two, the outer circumference of the yarn discharging part 64 may be provided to be greater than that of the supporting rod 44, or the cross-sectional area of the yarn discharging part 64 may be made to be greater than that of the supporting rod 44, thereby ensuring that centrifugal force generated by the two during rotation is substantially uniform, so as to improve durability and reliability of the mounting member 2.
Preferably, the sleeving part 22, the first fixing part 24 and the second fixing part 26 can be made of metal materials and are integrally cast, so that the overall structural strength of the mounting part 2 can be greatly improved, in order to prevent the mounting part 2 from being blocked by other parts in the rotating process, the arc surface avoiding parts 224 are arranged at the connecting parts between the first fixing part 24 and the second fixing part 26 and the sleeving part 22, and the surfaces of the arc surface avoiding parts 224 can be arranged as smooth as possible, so that the blocking of air to the arc surface avoiding parts 224 is reduced to the minimum in the rotating process of the yarn guiding restraint fork, and the yarn guiding restraint fork can be kept to rotate at a high speed under smaller blocking; the first fixing portion 24 and the second fixing portion 26 may be provided with the insertion hole 242 and the locking hole 262, the first body 42 and the second body 62 may be inserted into the insertion hole 242 of the first fixing portion 24 and the insertion hole 242 of the second fixing portion 26 respectively, and then the operation of fixedly connecting the first fixing portion 24 and the first supporting rod 4 and the operation of fixedly connecting the second fixing portion 26 and the second supporting rod 6 may be completed by means of the screw 28 passing through the locking hole 262, so that the connection manner is simple and reliable, and the disassembly and assembly are convenient in the subsequent maintenance and repair replacement process; preferably, the first body 42 and the second body 62 may be provided with a holding section 422, so that the first body 42 and the second body 62 both form a multi-section structure, the holding section 422 is inserted into the insertion hole 242, so that the first body 42 and the first fixing portion 24 complete the predetermined positioning, and in the subsequent use process, the holding section 422 and the first fixing portion 24 may also form a limiting relationship, so as to further promote the connection stability therebetween. In addition, during the operation of the yarn guiding and restraining fork, since the rotation speed of the yarn guiding and restraining fork is relatively high, in order to improve the structural strength thereof, optionally, the middle area of the sleeving part 22 is arranged in a shrinking manner along the axial direction of the mounting hole 222, and the connection area between the sleeving part and the first fixing part 24 and the second fixing part 26 can be increased.
In the process of weaving work, the restraint 8 is positioned at the outer side of the creel 9 to complete the guiding work of the weft yarn 10, but a certain distance needs to be kept between the restraint 8 and the creel 9, and the distance cannot be too large or too small; preferably, the restraint 8 may be disposed on a side of the first strut 4 near the sleeving portion 22, that is, the yarn guiding restraint ring 842 of the restraint 8 may be disposed inside the first strut 4, so that when the structure between the restraint 8 and the creel 9 is compact, a relatively large gap may be provided between the first strut 4 and the creel 9 to prevent interference between the first strut 4 and the weft yarn 10 on the creel 9 after a certain amount of weft yarn 10 is stored on the creel 9, which affects normal weaving operation, and the distance between the restraint 8 and the retaining portion 46 is adjustable, so that the foregoing problem does not exist.
Based on the yarn guiding and restraining fork provided by any of the above embodiments, as shown in fig. 4, the present application further provides a weft accumulator, in which weft yarn 10 can be pre-stored in the weft accumulator during the weaving process, the weft accumulator comprises a housing 1, a driving shaft, a creel 9, a yarn dividing device 11, and the yarn guiding and restraining fork provided by any of the above embodiments, wherein the driving shaft and the yarn guiding and restraining fork are both installed on the housing 1, the creel 9 is installed on the driving shaft in the servo driving system, and the yarn guiding and restraining fork is disposed between the housing 1 and the creel 9; the yarn dividing device 11 is used for finishing the weft yarn in the yarn storing process, and can arrange the weft yarn 10 on the creel 9 at a set interval by creeping itself from the end of the creel 9 away from the shell 1. Specifically, the shell 1 can be a shell structure made of metal, and the size of the creel 9 can be flexibly set according to actual requirements; the yarn dividing device 11 can be arranged in the inner cavity of the creel 9, and fins of the yarn dividing device can extend out of strip-shaped holes of the creel 9.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (6)
1. A yarn guide restraint fork mounted on a weft accumulator, comprising:
The mounting piece comprises a sleeving part, a first fixing part and a second fixing part, wherein the first fixing part and the second fixing part are fixedly connected to two sides of the sleeving part; the sleeving part is provided with a mounting hole, and the mounting piece is inserted into the driving shaft of the weft accumulator through the mounting hole;
The first support rod comprises a first body and a support rod, the first body is connected with the first fixing part and is obliquely arranged relative to the axis of the mounting hole, the support rod extends from the first body along the axis direction of the mounting hole, and the end part of the support rod extends to form a fixing part;
the second support rod comprises a second body and a yarn outlet part, the second body is arranged in a hollow mode and is connected with the second fixing part, the second body is used for threading, the second body is obliquely arranged relative to the axis, and the yarn outlet part is connected and communicated with the second body;
A restraining member attached to the holding portion, the restraining member having a yarn guide restraining ring hole for guiding and restraining the weft yarn;
Wherein the length of the yarn outlet part is smaller than the length of the supporting rod, the outer circumference of the yarn outlet part is larger than the outer circumference of the supporting rod, or the cross-sectional area of the yarn outlet part is larger than the cross-sectional area of the supporting rod;
the fixing part is provided with a fixing hole which is transversely arranged;
the axis of the yarn guide restraint ring hole is perpendicular to the axis of the fixing hole;
The first body and the second body are symmetrically arranged, and the included angle between the axes of the first body and the second body is 95-105 degrees;
The ratio of the length of the supporting rod to the length of the first body is 3:7-3:9;
the restraint piece is arranged on one side of the first support rod, which is close to the sleeving part.
2. The thread guide restraint fork of claim 1 wherein the restraint is made of a smooth ceramic or porcelain-like material.
3. The yarn guide restraining fork according to claim 1, wherein the restraining member comprises a retaining rod and a yarn guide body, the retaining rod is fixedly embedded in the yarn guide body, the yarn guide body is provided with the yarn guide restraining ring hole, and the cross section of the yarn guide body is an elliptical surface.
4. The yarn guide restraint fork of claim 1 wherein the restraint comprises a retaining bar and a yarn guide, the retaining bar and the retaining portion being adjustably connected to adjust the distance between the yarn guide and the retaining portion.
5. The yarn guide restraint fork of claim 1 wherein the support bar is a circular columnar structure.
6. The yarn guide restraint fork according to claim 1, wherein the sleeve portion, the first fixing portion and the second fixing portion are integrally cast, cambered surface avoiding portions are arranged between the first fixing portion and the second fixing portion and between the first fixing portion and the sleeve portion, and insertion holes and locking holes are formed in the first fixing portion and the second fixing portion;
The first support rod and the second support rod are made of light materials, the first support rod is fixedly inserted into the insertion hole of the first fixing portion, and the second support rod is fixedly inserted into the insertion hole of the second fixing portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810300778.2A CN108315861B (en) | 2018-04-04 | 2018-04-04 | Yarn guiding restraint fork and weft accumulator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810300778.2A CN108315861B (en) | 2018-04-04 | 2018-04-04 | Yarn guiding restraint fork and weft accumulator |
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| Publication Number | Publication Date |
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| CN108315861A CN108315861A (en) | 2018-07-24 |
| CN108315861B true CN108315861B (en) | 2024-04-26 |
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| CN201810300778.2A Active CN108315861B (en) | 2018-04-04 | 2018-04-04 | Yarn guiding restraint fork and weft accumulator |
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| JP2002339193A (en) * | 2001-05-11 | 2002-11-27 | Toyota Industries Corp | Weft insertion controller in jet loom |
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| CN206266802U (en) * | 2016-11-18 | 2017-06-20 | 浙江三禾智能科技有限公司 | A kind of electronic weft storage device of contained flight |
| CN107841818A (en) * | 2017-12-13 | 2018-03-27 | 浙江三禾智能科技有限公司 | A kind of weft accumulator of new contained flight |
| CN208167221U (en) * | 2018-04-04 | 2018-11-30 | 浙江三禾智能科技有限公司 | Guide restrains fork and weft accumulator |
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2018
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|---|---|---|---|---|
| US4153213A (en) * | 1977-03-11 | 1979-05-08 | Aktiebolaget Iro | Thread-delivery device for textile machines |
| US4811762A (en) * | 1986-07-15 | 1989-03-14 | Sulzer Brothers Limited | Weft yarn store for a loom |
| JP2002339193A (en) * | 2001-05-11 | 2002-11-27 | Toyota Industries Corp | Weft insertion controller in jet loom |
| CN105369455A (en) * | 2015-06-05 | 2016-03-02 | 欧真自动化科技（上海）有限公司 | Synchronous servo weft accumulator |
| CN105256447A (en) * | 2015-10-31 | 2016-01-20 | 计剑华 | Weft accumulator and weft accumulation method thereof |
| CN206266802U (en) * | 2016-11-18 | 2017-06-20 | 浙江三禾智能科技有限公司 | A kind of electronic weft storage device of contained flight |
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| Publication number | Publication date |
|---|---|
| CN108315861A (en) | 2018-07-24 |
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