CN115305607A - Upper pin cover plate, fiber strand conveying mechanism of ring spinning frame and core-spun yarn mechanism - Google Patents
Upper pin cover plate, fiber strand conveying mechanism of ring spinning frame and core-spun yarn mechanism Download PDFInfo
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- CN115305607A CN115305607A CN202210994627.8A CN202210994627A CN115305607A CN 115305607 A CN115305607 A CN 115305607A CN 202210994627 A CN202210994627 A CN 202210994627A CN 115305607 A CN115305607 A CN 115305607A
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- cover plate
- upper pin
- pin cover
- yarn
- roller
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/70—Constructional features of drafting elements
- D01H5/72—Fibre-condensing guides
-
- 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
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/36—Cored or coated yarns or threads
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The upper pin cover plate is characterized in that grooves which are the same as the fiber strands in number and are used for supporting the fiber strands are arranged on the fiber strand conveying channel of the upper pin cover plate, and the grooves are applied to a fiber strand conveying mechanism and a core-spun yarn mechanism of a ring spinning frame. The invention has the advantages that: 1. because the grooves are arranged on the strand channel of the upper pin cover plate, strand conveying mainly depends on the annular upper conveying belt on the upper pin, and loose fibers are gathered during spinning, spinning hairiness can be better controlled, and hairiness is obviously improved; and it only changes the local of the existing upper pin cover plate, and its structure is simple, reliable, and cost is low. 2. When the covering yarn is spun, the position of the fiber strands can be controlled, so that the relative positions of the filaments of the covering yarn and the fiber strands are fixed, the yarn leakage of the covering yarn can be reduced, and the product quality is improved.
Description
Technical Field
The invention relates to a conveying component and a conveying mechanism of a spinning frame strand and a core-spun yarn mechanism.
Background
The existing core-spun yarn mechanism:
the yarns require the outer fibers to uniformly wrap the filaments, which requires that the positions of the core spun filaments and the roving strands at the output nip of the front roller shaft are the same, and the filaments are in the middle of the transverse width of the roving strands.
As shown in the prior art in figures 1 and 2, a back roller shaft 3, a middle roller shaft 2 and a front roller shaft 1 are sequentially arranged on a roller pier component along the outgoing line direction, a back roller rubber roll 3A and a middle roller apron upper pin 2A are sequentially arranged on a cradle 22 along the outgoing line direction, the front roller rubber roll 1 forms three rows of roller drafting, the drafting multiple is 10-100, the speed ratio of the back roller shaft 3 to the middle roller shaft 2 is 1.1-2, the speed ratio of the middle roller shaft 2 to the front roller 1 is 10-80, a common lower pin 23 is arranged between the middle roller shaft 2 and the front roller 1, the lower apron 17 is arranged on the common lower pin 23, pressure is provided by the cradle 22, the cradle 22 is hinged on the roller pier component 11 through a cradle holding pipe 10, a thick sliver 20 is drawn out through a thick bobbin 21, passes through a bell mouth 6, and three rows of roller drafting become thin.
The core-spun yarn filament coil 19 is driven by a roller 7 to output filament 5, the filament 5 is input to a jaw formed by a front roller shaft 1 and a front roller rubber roller 1 through a guide roller 4 arranged on a cradle 22 and is converged with a drafted attenuated strand 25A to form a yarn 12, the yarn 12 passes through a yarn guide hook 13 and a steel wire ring 14, the steel wire ring 14 winds on a steel collar 16, and the yarn 12 forms core-spun yarn on a yarn tube 15 after winding and twisting.
Fig. 2 is a three-dimensional side view of a typical core yarn, and fig. 2 is a schematic view of a structure in which a double- ply yarn 20 and 20b is drawn to produce a siro-spun yarn.
The prior art has the following defects: as shown in fig. 3, the lateral discharge position of the roving strand 20 is controlled by a bell 6 at the rear of the rear roller shaft 3, and the lateral position of the filament 5 is controlled by a filament guide roller 4 mounted on a cradle 22. The distance from the bell mouth 6 to the combination point of the strands and the filaments 5 is more than 100 mm, the roving 20 has certain twist, the rear roller shaft 3 and the front roller shaft 1 have helical tooth patterns, the strands are uncontrollably drifted to the position of the output jaw of the front roller after being drafted at a large speed for a long distance, and the drift phenomenon is shown in fig. 15. The guide roller 4 is mounted on the cradle 22, and the lateral position of the guide roller 4 drifts each time the cradle 22 is lifted and pressed, and based on the two drifts, the fiber coating on the filament yarn 12 is not uniform after the yarn is formed.
The existing ring spinning frame and fiber strand conveying mechanism:
according to the fiber strand conveying mechanism of the ring spinning frame disclosed in the patent document CN110616479A and the lower spinning assembly of the fiber strand conveying mechanism of the ring spinning frame disclosed in the patent document CN 113417035A, as shown in fig. 5, a back roller shaft 3, a middle roller shaft 2, a front roller shaft 1, a back roller rubber covered roller 3A, a middle roller upper pin 8, and a front roller rubber covered roller 1 are sequentially arranged on a roller pier assembly along the yarn outgoing direction, and a cradle 22 is sequentially provided with three rows of rollers for drafting, pressure is provided by the cradle 22, the rotating speed of the middle roller shaft 2 is generally 1.1-2 times that of the back roller shaft 3, the rotating speed of the front roller shaft 1 is 10-90 times that of the middle roller shaft 2, and the middle roller upper pin 8 and the middle roller lower pin 9 are arranged between the middle roller shaft 2 and the front roller shaft 1.
As shown in fig. 9 and 10, the middle roller upper pin 8 comprises a middle roller rubber roller 8b, an upper pin frame body 8c, a tension block 8d, a gauge block 8f, a single-groove upper pin cover plate 8g and a flexible conveyer belt 8e; as shown in fig. 13, the middle roller lower pin 9 includes a lower pin positioning 9a, a lower pin main body 9c, a spinning block 9b, and a fixing screw 9d. As shown in fig. 14, a stable space is formed between the upper pin cover plate 8g and the lower pin main body 9c, the spinning block 9b by the spacing block 8f, and the soft conveyer belt 8e is driven by the middle roller rubber roller 8b to convey the fiber strand 24 in the space. The roving 20 is fed to the yarn guide 13, the traveler 14, and the ring 16 by the above-mentioned draft, and finally twisted and wound on the bobbin 15 to form a yarn. Because the speed ratio of the middle roller rubber roller 8b to the front roller rubber roller 1A is large and changes rapidly, the fiber strands are in a flat state in the space formed by the upper pin cover plate 6, the lower pin 2 and the conveyer belt 7, as shown in figure 7, the fiber strands in the flat state are sent into a jaw formed by the front roller shaft 1 and the front roller rubber roller 1A, so that the fibers at two sides cannot twist into yarns, and harmful hairiness is formed.
Disclosure of Invention
The invention solves the defects of the prior art and provides the slotted upper pin cover plate of the fiber strand conveying mechanism of the ring spinning frame, so that the slotted upper pin cover plate can guide strands more accurately.
The invention also provides a fiber strand conveying mechanism of the ring spinning frame, so that the fiber strand conveying mechanism can guide strands more accurately.
The invention also provides a core-spun yarn spinning mechanism, which can better control the position of the fiber strand of the core-spun yarn and ensure that the fiber on the filament is uniformly coated after the yarn is formed.
The technical scheme adopted by the invention for solving the defects is as follows:
the upper pin cover plate is characterized in that grooves for supporting the fiber strands, the number of which is the same as that of the fiber strands, are arranged on the fiber strand conveying channel of the upper pin cover plate.
The fiber strand conveying mechanism of the ring spinning frame comprises the upper pin cover plate.
The covering yarn mechanism comprises a fiber strand conveying mechanism of a ring spinning frame and a covering yarn filament conveying mechanism, wherein an upper pin cover plate of the fiber strand conveying mechanism of the ring spinning frame is the upper pin cover plate, and the covering yarn filament conveying mechanism conveys covering yarn filaments into a groove in a strand channel of the upper pin cover plate to be mixed with fiber strands of the fiber strand conveying mechanism of the ring spinning frame.
The invention is to improve the existing top pin cover plate to form a new top pin cover plate, and the new top pin cover plate is applied to a fiber strand conveying mechanism and a core-spun yarn spinning mechanism of a ring spinning frame, and other parts of the fiber strand conveying mechanism and the core-spun yarn spinning mechanism of the ring spinning frame are not changed.
Compared with the prior art, the invention has the advantages that:
1. because the grooves are arranged on the strand channel of the upper pin cover plate, strand conveying mainly depends on the annular upper conveying belt on the upper pin, and loose fibers are gathered during spinning, spinning hairiness can be better controlled, and hairiness is obviously improved; and it only changes the local of the existing upper pin cover plate, and its structure is simple and reliable, and cost is low.
2. When the covering yarn is spun, the position of the fiber strands can be controlled, so that the relative positions of the filaments and the fiber strands of the covering yarn are fixed, and the yarn leakage of the covering yarn can be reduced, thereby improving the product quality.
3. When more than one groove of the upper pin cover plate is formed, an obvious carding effect can be formed, and the yarn splitting effect of the yarn discharged by the front roller jaw is more obvious.
Drawings
Fig. 1 is a schematic view of a conventional core yarn spinning mechanism.
Fig. 2 is a side view three-dimensional schematic diagram of a prior art core spun yarn spinning mechanism.
Fig. 3 is a side view of a three-dimensional representation of the path followed by a roving after a prior art hidden cradle.
Fig. 4 is a side three-dimensional schematic view of a cradle hidden in a prior art core spun yarn spinning.
Fig. 5 is a schematic view of a conventional ring spinning structure.
FIG. 6 is a side three-dimensional schematic view of a prior art ring spun two-ply yarn.
FIG. 7 is a schematic view of the shape of a fiber at the nip of a drafting front roller without a grooved top pin cover plate in the prior art.
FIG. 8 is a schematic view of the shape of the fiber at the nip of the grooved top pin cover drafting front roller of the embodiment of the present invention.
FIG. 9 is a schematic view of the structure of the middle roller upper pin according to the embodiment of the present invention.
FIG. 10 is a schematic view of the structure of the middle roller upper pin according to another embodiment of the present invention.
FIG. 11 is a schematic view of an upper pin cover plate of an embodiment of the present invention.
FIG. 12 is a schematic view of an upper pin cover plate according to another embodiment of the present invention.
Fig. 13 is a schematic view of a lower pin structure employed in the present invention.
FIG. 14 is a schematic view of the upper pin cover plate and lower pin of the present invention.
FIG. 15 is a schematic representation of fiber drift for a prior art slotless top pin cover plate.
FIG. 16 is a schematic view of a slotted pin-on cover plate gathering and positioning fibers according to an embodiment of the present invention.
FIG. 17 is a schematic view of a core spun yarn spinning mechanism employing a slotted pin cover plate in accordance with an embodiment of the present invention.
FIG. 18 is a three-dimensional schematic view of a core spun yarn spinning mechanism employing a slotted pin cover plate in accordance with an embodiment of the present invention.
FIG. 19 is a three-dimensional schematic view of an embodiment of the present invention employing a slotted pin-over plate and hiding two cradle corespun yarn mechanisms.
Detailed Description
The invention is further explained by the embodiment in the following with the attached drawings.
As shown in fig. 5 and 6, the fiber sliver conveying mechanism of the ring spinning frame comprises a roller pier component 11 and a cradle 22 hinged on the roller pier through a cradle holding pipe 10, wherein a rear roller shaft 3, a middle roller upper pin 8 and a front roller shaft 1 are sequentially and movably arranged on the roller pier component 11 along the wire outlet direction, a rear roller rubber roller 3A, a middle roller rubber roller 4 and a front roller rubber roller 1A are sequentially arranged on the cradle 22 along the wire outlet direction, a middle roller lower pin 9 is arranged on the roller pier between the middle roller shaft 3 and the front roller shaft 1, the middle part of the upper surface of the middle roller lower pin 9 is provided with an arc surface, the middle roller upper pin component 8 is arranged above the lower pin 9, and the middle roller upper pin 8 and the middle roller lower pin 9 are arranged between the middle roller shaft 2 and the front roller shaft 1 to guide slivers 20.
The upper pin component comprises an upper pin cover plate I8 g or an upper pin cover plate II 8h of an arc surface which is matched with the arc surface of the lower pin 9 in a concave-convex mode, an annular conveying belt 8e, a single-groove roving yarn guide 8a or a double-groove roving yarn guide 8j, an upper pin frame body 8c and a tensioning block 8d, the annular upper conveying belt 8e is sleeved on the outer surfaces of the upper pin cover plates 8g and 8h and a middle roller rubber roller 8b, and the middle roller upper pin 8 is connected to the cradle 22.
The slotted upper pin cover plates 8g and 8h are used for controlling the strands to be in fixed positions and enabling the strands to be folded, the single-slotted upper pin cover plate 8g is used for single-strand yarn spinning, and the double-slotted upper pin cover plate 8h is used for double-strand yarn spinning.
As shown in fig. 9 and 10, the middle roller upper pin 8 is provided with a double groove upper pin cover plate 8h and a roving guide 8j, and is suitable for double-strand yarn spinning.
As shown in fig. 11, a groove 81 for the fiber strand fed from the middle roller upper pin 8 is formed in the fiber strand feeding path of the upper pin cover plate one 8g, and the groove 81 can support the fiber strand.
The shape of the upper pin cover plate groove 81 can be varied depending on the spinning material to accommodate the difference in the spinning material and the thickness of the yarn.
As shown in fig. 12, two grooves 81 are formed on the strand conveying path of the upper pin cover plate two 8h corresponding to the two strands 20, so that each strand 20 is supported by its corresponding groove 81.
The number of the upper pin cover plate grooves 81 can be changed so as to meet the requirements of single-strand spinning, double-strand spinning and multi-strand spinning.
As shown in fig. 9, the middle roller upper pin 8 is an embodiment of a middle roller upper pin 8, and the middle roller upper pin 8 includes a middle roller rubber roller 8b, a roving guide, an upper pin frame body 8c, a tension block 8d, a gauge block 8f, an upper pin cover plate 8g, and a flexible conveyer belt 8e. The middle roller upper pin 8, fitted with a single slot upper pin cover plate-8 g, is tensioned in the direction of the outgoing thread, the upper belt 8e is of soft material, the upper belt 8e creates a groove in the position of the upper pin cover plate 8g slot, which closes and positions the strands, the fibers are controlled to gather as shown in fig. 16.
As shown in FIG. 10, another embodiment of the middle roller upper pin 8 is provided, which uses another structure of the upper pin cover plate two 8h, and the rest parts are the same as those of the previous embodiment.
As shown in fig. 13, the middle roller lower pin 9 includes a lower pin positioning 9a, a lower pin main body 9c, a spinning block 9b, and a fixing screw 9d. Since the middle roller lower pin 9 is used in cooperation with the middle roller upper pin 8, the middle roller lower pin 9 is already known in the art and will not be described in detail herein.
The middle roller lower pin 9 can also adopt other structures in the prior art.
As shown in fig. 14, a stable space is formed between the upper pin cover plate 8g and the lower pin body 9c, and the spinning block 9b by the spacing block 8f, the soft conveyer belt 8e is driven by the middle roller rubber roll 8b to convey the fiber in the space, the single-groove strand yarn adopts the single-groove upper pin cover plate 8g and the single-groove roving carrier 8a of the single groove 85, and the double-groove strand yarn adopts the double-groove upper pin cover plate two 8h and the double-groove roving carrier 8j of the double groove 85.
The roving 20 is fed to the yarn guide 13, the traveler 14, and the ring 16 by the above-mentioned draft, and finally twisted and wound on the bobbin 15 to form a yarn. Due to the existence of the grooves 8g and 8h of the upper pin cover plate, the soft conveying belt 8e can form a groove under the action of drafting tension, the fibers are gathered and positioned in the grooves, and finally the states shown in figures 8 and 16 are formed, so that gathered strands 24A and 25A are formed, and harmful hairiness of the yarns is reduced.
As shown in fig. 14, the slots of the upper pin cover plates 8g and 8h must be lower than the line connecting the highest points of the front roller shaft 1 and the middle roller shaft 2, i.e. the drafted fiber strands must be supported and limited by the groove 81.
The comparative test of the upper pin cover plate without the groove after the groove is formed is as follows:
a longitude and latitude 506 spinning frame is adopted, the diameter of three rows of rollers is 25, 30 BR17 color spinning is tested, the average length of pure cotton fibers is 28 millimeters, single yarns and same spindles are compared with the hairiness of a cover plate with grooves and without grooves on a same roving, and the testing instrument is a YG172A yarn hairiness testing instrument produced by Shaanxi Chang Ling textile electromechanical technology limited.
As can be seen from the above table, the hairiness index value of the grooved upper pin cover plate with the groove of more than 3mm is far smaller than that of the grooved upper pin cover plate without the groove, so that the yarn smoothness and quality of the grooved upper pin cover plate are good.
The visual display of the hairiness contrast can be seen in fig. 7 and 8, fig. 7 is a schematic diagram of the fiber shape at the nip of the drafting front roller without the slotted upper pin cover plate, and fig. 8 is a schematic diagram of the fiber shape at the nip of the drafting front roller with the slotted upper pin cover plate.
As can also be seen from fig. 7 and 8, the yarn hairiness of the slotted top-pin cover plate is significantly better than that of the non-slotted top-pin cover plate.
Covering yarn mechanism:
the core-spun yarn mechanism shown in fig. 17, 18 and 19 is added with a filament conveying mechanism on the basis of the ring spinning, wherein the filament conveying mechanism comprises a core-spun yarn filament roll 19, a roller 7, a filament 5 and a guide roller 4 arranged on a cradle 22.
The core-spun yarn filament coil 19 is driven by a roller 7 to output filament 5, the filament 5 is input into a jaw formed by a front roller shaft 1 and a front roller rubber roller 1 through a guide roller 4 arranged on a cradle 22 and is converged with a drafting thinning strand 25A to form a yarn 12, the yarn 12 passes through a yarn guide hook 13 and a steel wire ring 14, the steel wire ring 14 winds on a steel collar 16, and the yarn 12 is wound and twisted to form the core-spun yarn on a yarn tube 15.
The covering yarn mechanism adopts the upper pin cover plate I8 g and the upper pin cover plate II 8h, and as the guide roller 4 and the upper pin 8 of the middle roller are both arranged on the cradle 22, the guide roller 4 and the upper pin cover plates 8g and 8h are positioned under the deviation condition of the cradle 22, and the strand 25 is positioned close to the joint of the filament and the strand, the positioning is accurate, and the non-uniformity of covering yarn is greatly reduced.
Claims (4)
1. The upper pin cover plate is characterized in that grooves for supporting the fiber strands, the number of which is the same as that of the fiber strands, are arranged on the fiber strand conveying channel of the upper pin cover plate.
2. The upper pin cover plate of claim 1 wherein the upper pin cover plate has two grooves.
3. The fiber strand conveying mechanism of the ring spinning frame comprises an upper pin cover plate, and is characterized in that the upper pin cover plate is the upper pin cover plate according to claim 1 or 2.
4. Covering yarn mechanism, including the fibrous strand conveying mechanism and the covering yarn filament conveying mechanism of ring spinning frame, its characterized in that: the upper pin cover plate of the fiber strand conveying mechanism of the ring spinning frame is the upper pin cover plate according to claim 3, and the covering yarn filament conveying mechanism conveys the covering yarn filament into the groove on the strand channel of the upper pin cover plate to be mixed with the fiber strands of the fiber strand conveying mechanism of the ring spinning frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210994627.8A CN115305607A (en) | 2022-08-18 | 2022-08-18 | Upper pin cover plate, fiber strand conveying mechanism of ring spinning frame and core-spun yarn mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210994627.8A CN115305607A (en) | 2022-08-18 | 2022-08-18 | Upper pin cover plate, fiber strand conveying mechanism of ring spinning frame and core-spun yarn mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115305607A true CN115305607A (en) | 2022-11-08 |
Family
ID=83863019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210994627.8A Pending CN115305607A (en) | 2022-08-18 | 2022-08-18 | Upper pin cover plate, fiber strand conveying mechanism of ring spinning frame and core-spun yarn mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115305607A (en) |
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2022
- 2022-08-18 CN CN202210994627.8A patent/CN115305607A/en active Pending
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