CN112501724B

CN112501724B - Double-fiber twisting device and twisting process

Info

Publication number: CN112501724B
Application number: CN202011340110.4A
Authority: CN
Inventors: 金焕根
Original assignee: Shaoxing Qinye Knitting Industrial Co ltd
Current assignee: Zhejiang Xianye New Material Technology Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-10-15
Anticipated expiration: 2040-11-25
Also published as: CN112501724A

Abstract

The invention relates to the technical field of spinning, in particular to a double-fiber twisting device and a twisting process. Comprises a first shaping component and a second shaping component; the first shaping assembly comprises a first telescopic piece and a first shaping block, and two edges of one first shaping block are hinged with edges of other first shaping blocks respectively; the first shaping block comprises an inclined block and an upper shaping block, the shaping block is connected with the movable rod of the first telescopic piece, and the inclined blocks on two sides of the upper shaping block are respectively hinged with two ends of the fixed block through first connecting rods; the second shaping assembly comprises a base, a second telescopic piece and two second shaping blocks arranged on the base in a sliding mode; the two second shaping blocks are hinged with the movable end of the second telescopic piece through second connecting rods respectively; the first plastic block and the second plastic block are both hollow inside, are respectively provided with an adsorption port and are communicated with a negative pressure device. The yarn structure formed by twisting flat ribbon-shaped and cylindrical fibers alternately connected and fibers alternately connected in a regular triangle shape and a reverse triangle shape can be obtained.

Description

Double-fiber twisting device and twisting process

Technical Field

The invention relates to the technical field of spinning, in particular to a double-fiber twisting device and a twisting process.

Background

With the increasing living standard of people and the continuous updating of consumption concept, the consumption requirements of consumers on the quality, variety, flower type and the like of fiber textiles, especially novel fiber fabrics, are higher and higher, and the original single and monotonous fiber products can not meet the development of times and the demands of people. The textile industry typically requires twisting of single-strand yarns to wind and twist two or more single-strand yarns into a yarn prior to spinning with the yarns. In the spinning process, the sliver (strand, yarn, thread) is twisted or axially wound around its axis to obtain "twist" or wrapping, which is called "twisting". The twisting can make the fibers or the monofilaments cohere and intertwined with each other without loosening or slipping, and has certain physical and mechanical properties (such as strength, elongation, elasticity and the like) and appearance characteristics (such as luster, hairiness, hand feeling and the like).

Patent document CN109891013A discloses such a process and system for making twisted textured yarns. The process comprises the following steps: withdrawing a first base yarn from a first supply source at a predetermined tension; heating the first base yarn to extend it by at least one first heated godet roll; withdrawing a second base yarn from a second supply at a predetermined tension; heating the second base yarn to extend it by at least one second heated godet; feeding at least one of the first raw yarn and the second raw yarn into an air texturing machine to obtain a third raw yarn; winding the third raw yarn discharged from the air texturing machine, wherein the winding is a weft winding process; twisting a first raw yarn, a second raw yarn and a third raw yarn; and the twisted third base yarn is wound again. In this application, the textured yarn is obtained by heating, but the textured yarn has a uniform shape from the top to the bottom, and the obtained yarn has relatively single properties.

Disclosure of Invention

The invention aims to solve the problems and provides a double-fiber twisting device and a twisting process.

The technical scheme for solving the problems is to provide a double-fiber twisting device, which comprises a first fiber, a second fiber and a twisting component for twisting the first fiber and the second fiber, and is characterized in that: further comprising a first shaping component for shaping the first fiber and a second shaping component for shaping the second fiber prior to twisting; the first shaping assembly comprises a first telescopic part and a plurality of first shaping blocks, two edges of one first shaping block are hinged with edges of other first shaping blocks respectively so that the first shaping blocks form a shaping ring for the first fibers to pass through, the number of the first shaping blocks is 4+4n, and n is a natural number greater than or equal to 1; the first shaping blocks comprise a plurality of inclined blocks, an upper shaping block and a lower shaping block which are parallel to each other, and a left shaping block and a right shaping block which are vertical to the upper shaping block, the upper shaping block is connected with a movable rod of the first telescopic piece, and the movable rod of the first telescopic piece penetrates through a fixed block; the two inclined blocks on the two sides of the upper shaping block are respectively connected with the two ends of the fixed block through first connecting rods, and the two ends of each first connecting rod are respectively hinged with the fixed block and the inclined blocks; the left and right shaped blocks are evenly divided into an upper light part and a lower heavy part, and the material density of the lower heavy part is greater than that of the upper light part; the second shaping assembly comprises a base, a second telescopic piece and two second shaping blocks, wherein the second telescopic piece is suspended above the base, the two second shaping blocks are arranged on the base in a sliding mode, and a shaping cavity for the second fibers to pass through is formed between the two second shaping blocks; the two second shaping blocks are respectively connected with two ends of a movable block arranged at the movable end of the second telescopic piece through second connecting rods, and two ends of each second connecting rod are respectively hinged with the second shaping blocks and the movable block; the first shaping block and the second shaping block are both hollow inside and communicated with a negative pressure device, and the first shaping block is close to one surface of the shaping ring and the second shaping block is close to one surface of the shaping cavity respectively and is provided with an adsorption port.

Preferably, the lower shaping block is divided into an upper light part and a lower heavy part on average, and the material density of the lower heavy part is greater than that of the upper light part.

Preferably, the inner diameter of the end of the adsorption port close to the shaping ring or the shaping cavity is smaller than the inner diameter of the end far away from the shaping ring or the shaping cavity.

Preferably, the fiber forming apparatus further comprises two steam heating members, one steam heating member being disposed upstream of the first forming member in the first fiber moving direction, and the other steam heating member being disposed upstream of the second forming member in the second fiber moving direction.

Preferably, the steam heating element comprises an outer shell and an inner shell, the inner cavity of the inner shell can be used for the first fibers or the second fibers to pass through, a steam channel is formed between the outer shell and the inner shell, and a plurality of spray heads are arranged on the inner wall of the inner shell.

Preferably, a drying plate is arranged on one surface of the first shaping block close to the shaping ring and one surface of the second shaping block close to the shaping cavity respectively.

Preferably, the drying plate is a heating plate.

Preferably, the drying plate is a silica gel water absorption plate.

Preferably, the twisting assembly comprises a turntable and a winding drum, wherein the center of the turntable is connected with the output shaft of the motor, the winding drum is suspended above the center of the turntable, a first unwinding drum and a second unwinding drum are respectively arranged at two ends of the turntable, one end of the first fiber is connected with the winding drum, the other end of the first fiber is wound on the first unwinding drum, one end of the second fiber is connected with the winding drum, and the other end of the second fiber is wound on the second unwinding drum; the first extensible member and the second extensible member are arranged on the rotary table through a portal frame.

Preferably, the rotating disc is further provided with two turning rollers for changing the moving directions of the first fiber and the second fiber respectively.

Another object of the present invention is to provide a twisting process implemented by using the double fiber twisting apparatus, comprising the steps of:

(a) before twisting, controlling the first telescopic piece to be periodically telescopic so that the first fibers form a shape of alternately connecting a flat belt shape and a cylindrical shape; meanwhile, the second expansion piece is controlled to expand periodically, so that the second fibers are alternately connected in a regular triangle shape and a reverse triangle shape;

(b) and twisting the shaped first fiber and the shaped second fiber, wherein during twisting, the flat belt-shaped part of the first fiber is controlled to be twisted with the part of the second fiber connected with the regular triangle-shaped wide end and the reverse triangle-shaped wide end, and the cylindrical part of the first fiber is controlled to be twisted with the part of the second fiber connected with the regular triangle-shaped narrow end and the reverse triangle-shaped narrow end.

The invention has the beneficial effects that:

1. through the twisting device of this application, obtain one kind by flat banding and cylindric alternate connection's fibre and by regular triangle form and the yarn structure that the alternate connection's of anti-triangle form fibre twisting formed, the space reduces in general twisting fiber structure between the fibre of this kind of yarn structure, and the surface fabric that obtains with the preparation of the twisted yarn structure of this application is stiff and smooth not corrugating, has technical advantage such as intensity height and extensibility are good.

2. This application only needs to be through controlling first extensible member and second extensible member periodically round trip movement through the setting of first shaping piece and second shaping piece, can obtain the moulding circle that the shape constantly changes and mould the chamber, combines vacuum device's use simultaneously, can effectively change fibrous shape, has easy operation, characteristics that moulding is effectual.

3. According to the shaping device, the steam heating operation is carried out on the fibers before shaping through the arrangement of the steam heating part, so that the subsequent shaping effect can be improved; and meanwhile, a drying plate is arranged on the molding block, so that the fibers are dried while molding.

Drawings

FIG. 1 is a schematic structural view of a double fiber twisting apparatus;

FIG. 2 is a schematic view of a first shaping component of a double fiber twisting apparatus;

FIG. 3 is a schematic diagram of a variation of the first shaping component of a double fiber twisting apparatus;

FIG. 4 is a schematic diagram of a second shaping component of a double fiber twisting apparatus;

FIG. 5 is a schematic view of a steam heating element in a two-fiber twisting apparatus;

in the figure: the shaping device comprises a first shaping component 1, a shaping ring 10, an inclined block 11, an upper shaping block 12, a lower shaping block 13, an upper light part 131, a lower heavy part 132, a left shaping block 14, an upper light part 141, a lower heavy part 142, a right shaping block 15, a first telescopic piece 16, a fixed block 161, a first connecting rod 162, a second shaping component 2, a base 21, a second shaping block 22, a movable block 221, a second connecting rod 222, an adsorption port 223, a drying plate 224, a second telescopic piece 23, a steam heating piece 3, an outer shell 31, an inner shell 32, a spray head 321, a motor 4, a rotating disc 41, a steering roller 411, a winding drum 5, a first unwinding drum 51 and a second unwinding drum 52.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

A two-fiber twisting apparatus, as shown in fig. 1, includes a first fiber, a second fiber, and a twisting assembly for twisting the first fiber and the second fiber. The twisting assembly in this embodiment includes a rotating disc 41 whose center is connected to the output shaft of the motor 4, and a winding drum 5 suspended above the center of the rotating disc 41, wherein a first unwinding drum 51 and a second unwinding drum 52 are respectively disposed at two ends of the rotating disc 41, one end of the first fiber is connected to the winding drum 5, the other end of the first fiber is wound on the first unwinding drum 51, one end of the second fiber is connected to the winding drum 5, and the other end of the second fiber is wound on the second unwinding drum 52. When the fiber twisting device is used, the winding drum 5 does not rotate, one end of the first fibers and one end of the second fibers are fixed along with the winding drum 5, and the other end of the first fibers and the other end of the second fibers rotate along with the rotating disc 41, so that the first fibers and the second fibers are twisted together. Meanwhile, the winding drum 5 may be connected to an output shaft of a winding motor, so that the winding drum 5 winds the twisted yarn, and drives the first unwinding drum 51 and the second unwinding drum 52 to unwind the first fiber and the second fiber continuously. In this embodiment, the first fibers are bamboo fibers, and the second fibers are polypropylene fibers.

In order to obtain a yarn with more excellent properties, a first shaping component 1 for shaping the first fiber and a second shaping component 2 for shaping the second fiber are also included in the present application before twisting.

The first shaping assembly 1 comprises a first telescopic member 16 and a plurality of first shaping blocks. The first telescopic member 16 is disposed on the turntable 41 through a gantry, that is, the gantry includes two vertical columns and a horizontal rod to form a door shape, and the fixed end of the first telescopic member 16 is disposed on the horizontal rod.

As shown in fig. 2, two edges of a first shaping block are hinged to edges of other first shaping blocks, so that a plurality of first shaping blocks form a shaping ring 10 for a first fiber to pass through, wherein the hinged manner can be connected by a common hinge. In order to ensure that the first shaping blocks can enclose an approximate circle, the number of the first shaping blocks is 4+4n, wherein n is a natural number which is more than or equal to 1. In this embodiment, n is 1, that is, the first shaping block of the present application includes 4 inclined blocks 11, an upper shaping block 12 and a lower shaping block 13 which are parallel to each other, and a left shaping block 14 and a right shaping block 15 which are both perpendicular to the upper shaping block 12.

In order to control the shape change of the shaping ring 10, the upper shaping block 12 is connected to the movable rod of the first telescopic element 16, and the movable rod of the first telescopic element 16 passes through a fixed block 161; the inclined blocks 11 on two sides of the upper shaping block 12 are respectively connected with two ends of the fixed block 161 through a first connecting rod 162, and two ends of the first connecting rod 162 are respectively hinged with the fixed block 161 and the inclined blocks 11. The left and

right shaping blocks

14 and 15 are equally divided into an upper lightweight portion 141 and a lower heavy portion 142, and the material density of the lower heavy portion 142 is greater than that of the upper lightweight portion 141, so that the left and

right shaping blocks

14 and 15 can be always maintained in a vertical state by gravity. In general, the lower blocks 14 may naturally maintain a horizontal state, but in order to ensure the horizontal state, the lower blocks 13 may be equally divided into the upper light parts 131 and the lower heavy parts 132, and the material density of the lower heavy parts 132 is greater than that of the upper light parts 131. The

top light portions

141 and 131 are the most simple ones, that is, the hollow portions, and in this case, the bottom heavy portion 142 and the bottom heavy portion 132 may be the solid portions.

After the above-mentioned structural arrangement is completed, the shaping ring 10 can be subjected to structural changes as shown in fig. 3. The fixed block 161 is kept stationary, when the first telescopic member 16 extends to push the upper shaping block 12 to move downward, the inclined blocks 11 at the two ends of the first telescopic member are driven to rotate with the connected end of the first telescopic member to move downward under the action of the hinge, and the other end of the inclined block 11 pushes the left shaping block 14 and the right shaping block 15 to move outward, so that the shaping ring 10 is changed from an approximately regular circle shape to an approximately elliptical shape. The first expansion piece 16 is further extended until the end surface of the sloping block 11 is attached to the end surface of the upper shaping block 12, so that the shaping ring 10 forms a square shape. On the contrary, when the first expansion piece 16 is shortened, the upper shaping block 12 is driven to move upwards, and the shape can be changed from square to approximate perfect circle.

At this time, the inside of the first shaping block is hollow and is communicated with the negative pressure device, and an adsorption port 223 is arranged on one surface of the first shaping block close to the shaping ring 10. When the first fiber passes through the shaping ring 10, the part of the first fiber in the shaping ring 10 can be adsorbed to the first shaping block by negative pressure, and is pulled to form the shape of the shaping ring 10 at the moment, so that the shaping of the first fiber is realized. By means of the first shaping component 1, the first fibres can be formed into a flat ribbon-like and cylindrical alternating connected shape.

As shown in fig. 4, the second shaping assembly 2 includes a base 21, a second telescopic member 23 suspended above the base 21, and two second shaping blocks 22 slidably disposed on the base 21, wherein a shaping cavity 20 for passing the second fiber is formed between the two second shaping blocks 22. Similarly, the second expansion piece 23 is provided on the turntable 41 via a gantry, and the base 21 is fixed to the turntable 41. The two second shaping blocks 22 are respectively connected with two ends of a movable block 221 arranged at the movable end of the second telescopic member 23 through a second connecting rod 222, and two ends of the second connecting rod 222 are respectively hinged with the second shaping blocks 22 and the movable block 221.

The deformation of the plastic cavity 20 is simple, when the second telescopic member 23 is extended, the second telescopic member will drive the two second plastic blocks 22 to move in the direction away from each other under the action of the second connecting rod 222, so that the width of the plastic cavity 20 is increased, otherwise, when the second telescopic member 23 is shortened, the width of the plastic cavity 20 is shortened. Similarly, the second shaped block 22 is hollow inside and communicates with the negative pressure device, and a suction port 223 is provided on a side of the second shaped block 22 adjacent to the shaped cavity 20. When the second fiber passes through the plastic cavity 20, the part of the second fiber in the plastic cavity 20 is adsorbed to the second plastic block 22 by negative pressure, and is pulled to form the shape of the plastic cavity 20, so that the second fiber is molded. By means of the second shaping component 2, the second fibers can be formed into a shape with alternating regular and reverse triangular connections.

In order to further improve the negative pressure absorption effect, in the present embodiment, the inner diameter of the end of the absorption port 223 close to the shaping ring 10 or the shaping cavity 20 is smaller than the inner diameter of the end far from the shaping ring 10 or the shaping cavity 20.

In order to improve the shaping effect, the present embodiment further includes two steam heating members 3, one steam heating member 3 is disposed upstream of the first shaping component 1 along the first fiber moving direction, and the other steam heating member 3 is disposed upstream of the second shaping component 2 along the second fiber moving direction. That is, as shown in fig. 1, a steam heating member 3 is disposed between the first shaping member 1 and the first unwinding bobbin 51, and another steam heating member 3 is disposed between the second shaping member 2 and the second unwinding bobbin 52. That is, before shaping, the fiber is first steam heated, so that the shape of the fiber is easy to change during subsequent shaping.

For example, as shown in fig. 5, the steam heating element 3 includes an outer shell 31 and an inner shell 32, an inner cavity of the inner shell 32 can allow the first fiber or the second fiber to pass through, a steam channel is formed between the outer shell 31 and the inner shell 32, and a plurality of nozzles 321 are respectively disposed at the top, the bottom, and the inner side of the inner shell 32 to uniformly and comprehensively heat the fibers with steam.

Since the fibers, while more deformable by steam heating, also carry moisture, if twisted directly, it can make the yarn difficult to dry. Therefore, in the present embodiment, a drying plate 224 is further disposed on a side of the first shaping block adjacent to the shaping ring 10 and a side of the second shaping block 22 adjacent to the shaping cavity 20. Such drying plate 224 may be a silica gel suction plate or a hot plate, so that the fibers are dried while being adsorbed onto the shaping block.

In addition, since the fibers are shaped in the horizontal direction and twisted in the vertical direction, the turn table 41 is further provided with two turning rollers 411 for changing the moving directions of the first fibers and the second fibers, respectively.

Therefore, the twisting process implemented by the double-fiber twisting device comprises the following steps:

a, before twisting, controlling the first expansion piece 16 to expand and contract periodically, so that the first fibers form a shape of flat belt-shaped and cylindrical alternate connection; meanwhile, the second expansion piece 23 is controlled to expand and contract periodically, so that the second fibers form a shape of alternately connecting a regular triangle shape and a reverse triangle shape;

b, twisting the shaped first fiber and the shaped second fiber, and controlling the flat belt-shaped part of the first fiber to be twisted with the part of the second fiber connected with the regular triangle wide end and the reverse triangle wide end, and controlling the cylindrical part of the first fiber to be twisted with the part of the second fiber connected with the regular triangle narrow end and the reverse triangle narrow end.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A twin fibre twisting apparatus comprising a first fibre, a second fibre, and a twisting assembly for twisting the first fibre and the second fibre, characterised in that: further comprising a first shaping component (1) for shaping the first fiber and a second shaping component (2) for shaping the second fiber before twisting; the first shaping assembly (1) comprises a first telescopic part (16) and a plurality of first shaping blocks, two edges of one first shaping block are respectively hinged with edges of other first shaping blocks so that the first shaping blocks surround a shaping ring (10) for the first fibers to pass through, the number of the first shaping blocks is 4+4n, and n is a natural number greater than or equal to 1; the first shaping blocks comprise a plurality of inclined blocks (11), an upper shaping block (12) and a lower shaping block (13) which are parallel to each other, and a left shaping block (14) and a right shaping block (15) which are both vertical to the upper shaping block (12), the upper shaping block (12) is connected with a movable rod of the first telescopic part (16), and the movable rod of the first telescopic part (16) penetrates through a fixed block (161); the inclined blocks (11) on two sides of the upper shaping block (12) are respectively connected with two ends of the fixed block (161) through first connecting rods (162), and two ends of each first connecting rod (162) are respectively hinged with the fixed block (161) and the inclined blocks (11); the left and right shaped blocks (14, 15) are each equally divided into an upper light portion (141) and a lower heavy portion (142), the material density of the lower heavy portion (142) being greater than the material density of the upper light portion (141); the second shaping assembly (2) comprises a base (21), a second telescopic part (23) suspended above the base (21) and two second shaping blocks (22) arranged on the base (21) in a sliding manner, and a shaping cavity (20) for the second fibers to pass through is formed between the two second shaping blocks (22); the two second shaping blocks (22) are respectively connected with two ends of a movable block (221) arranged at the movable end of the second telescopic part (23) through second connecting rods (222), and two ends of each second connecting rod (222) are respectively hinged with the second shaping blocks (22) and the movable block (221); first shaping piece and second shaping piece (22) are all inside hollow and communicate with negative pressure device, first shaping piece is close to the one side of moulding circle (10) second shaping piece (22) are close to the one side in moulding chamber (20) is equipped with respectively and adsorbs mouth (223).

2. A twin fibre twisting apparatus according to claim 1 in which: the lower shaped block (13) is equally divided into an upper light part (131) and a lower heavy part (132), and the material density of the lower heavy part (132) is greater than that of the upper light part (131).

3. A twin fibre twisting apparatus according to claim 1 in which: the inner diameter of one end of the adsorption port (223) close to the shaping ring (10) or the shaping cavity (20) is smaller than that of one end far away from the shaping ring (10) or the shaping cavity (20).

4. A twin fibre twisting apparatus according to claim 1 in which: still include two steam heating parts (3), along first fibre direction of motion, one steam heating part (3) set up in the upstream of first moulding subassembly (1), along second fibre direction of motion, another steam heating part (3) set up in the upstream of second moulding subassembly (2).

5. A twin fibre twisting apparatus according to claim 4 in which: steam heating spare (3) include shell (31) and inner shell (32), inner shell (32) inner chamber can supply first fibre or second fibre to pass through, form steam channel between shell (31) and inner shell (32), inner shell (32) inner wall is equipped with a plurality of shower nozzles (321).

6. A twin fibre twisting apparatus according to claim 4 in which: one face, close to the shaping ring (10), of the first shaping block and one face, close to the shaping cavity (20), of the second shaping block (22) are respectively provided with a drying plate (224).

7. A twin fibre twisting apparatus according to claim 6 in which: the drying plate (224) is a heating plate.

8. A twin fibre twisting apparatus according to claim 1 in which: the twisting assembly comprises a rotating disc (41) with the center connected with an output shaft of a motor (4) and a winding drum (5) suspended above the center of the rotating disc (41), a first winding drum (51) and a second winding drum (52) are respectively arranged at two ends of the rotating disc (41), one end of a first fiber is connected with the winding drum (5), the other end of the first fiber is wound on the first winding drum (51), one end of a second fiber is connected with the winding drum (5), and the other end of the second fiber is wound on the second winding drum (52); the first telescopic piece (16) and the second telescopic piece (23) are arranged on the turntable (41) through a portal frame.

9. A twin fibre twisting apparatus according to claim 8 in which: the rotating disc (41) is also provided with two steering rollers (411) which are respectively used for changing the moving directions of the first fiber and the second fiber.

10. A twisting process implemented by using the double fiber twisting apparatus of any one of claims 1 to 9, wherein: the method comprises the following steps:

(a) before twisting, controlling the first telescopic member (16) to periodically stretch so that the first fibers form a shape of flat belt and cylinder alternately connected; meanwhile, the second expansion piece (23) is controlled to expand and contract periodically, so that the second fibers form a shape of alternately connecting a regular triangle shape and a reverse triangle shape;