CN210481613U

CN210481613U - Short fiber roving and filament positioning collector for composite yarn spinning and spinning frame

Info

Publication number: CN210481613U
Application number: CN201920996103.6U
Authority: CN
Inventors: 刘可帅; 许多; 苏子毅; 郭维琪; 李文斌; 徐卫林
Original assignee: Wuhan Textile University
Current assignee: Wuhan Textile University
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-05-08
Anticipated expiration: 2029-06-28

Abstract

The utility model provides a composite yarn spins and uses short fiber roving and filament location collector, it sets up between the front roller and the leather roller of spinning frame, including first counterweight plate, second counterweight plate, two protection pieces and two triangle steady pieces, the rectangle board that first counterweight plate and second counterweight plate set up side by side for controlling, and the two upper end of keeping away from one side each other corresponds the setting with the top respectively the lower extreme of protection piece is connected, and the two lower extreme of keeping away from one side each other all corresponds the setting with the below the upper end of triangle steady piece is connected, two the triangle steady piece all is equipped with the groove that gathers that is used for making filament and cotton roving to pass, first counterweight plate and second counterweight plate move to being close to each other or keeping away from along the horizontal direction to it is close to or keeping away from to drive two and gathers the groove reciprocal displacements. The device is a short fiber roving and filament positioning collector for spinning composite yarns, which has the advantages of wide application, simple operation, accurate regulation and control, higher working efficiency and product quality improvement.

Description

Short fiber roving and filament positioning collector for composite yarn spinning and spinning frame

Technical Field

The utility model belongs to the technical field of weaving equipment, concretely relates to composite yarn spins and uses short fiber roving and filament location collector and spinning frame.

Background

The composite spinning technology of the filament and the staple fiber roving can enable the yarn to simultaneously have the style, the hand feeling and the moisture absorption performance of natural staple fibers and the stiffness and the shape retention performance provided by the self-strength and elongation of the filament, and the excellent yarn quality and the unique yarn structure enable the yarn to get more and more attention in recent years and quickly develop into an important method for meeting the diversity of the textile performance. At present, the spinning method for producing filament and short fiber roving composite yarn is mainly ring spinning, air jet spinning, rotor spinning, hollow spinning and the like, wherein the most mature and widely applied ring composite spinning technology is adopted.

Yarn properties depend on the yarn structure, with different composite spinning processes producing different yarn structures. In the composite spinning yarn, the arrangement distribution between the staple fiber roving and the filament and the cooperative conformation between the staple fiber roving and the filament play a decisive role in the yarn forming performance. The yarn structure model is difficult to accurately regulate and control when various composite yarns are spun, different spinning parts are needed for different composite yarns, the production cost consumption is caused when the type of the composite yarns is changed, and meanwhile, the problems of poor coating between filaments and staple fiber roving, more hairiness, low strength and the like exist in the yarn quality.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the application is to provide a short fiber roving and filament positioning collector for composite yarn spinning, which can be mainly used for spinning various types of composite yarns such as core spun yarns, siro spinning, sirofil spinning and embedded composite spinning, and can achieve the effects of reducing yarn hairiness and improving yarn strength. Simultaneously the utility model provides a be suitable for extensive, easy operation, accurate regulation and control, work efficiency is higher, improve product quality's a composite yarn spins and uses short fiber roving and filament positioning collector.

In order to realize the purpose, the utility model adopts the technical scheme that: the utility model provides a short fiber roving and filament location collector for composite yarn spins, its sets up between the front roller and the leather roller of spinning frame, includes first counterweight plate, second counterweight plate, two protection pieces and two triangle steady pieces, first counterweight plate and second counterweight plate are for controlling the rectangular board that sets up side by side, and the two upper end of keeping away from one side each other corresponds the setting with the top respectively the lower extreme of protection piece is connected, and the two lower extreme of keeping away from one side each other all corresponds the setting with the below the upper end of triangle steady piece is connected, two triangle steady piece all is equipped with the gathering groove that is used for making filament and cotton roving pass, first counterweight plate and second counterweight plate move to being close to each other or keeping away from along the horizontal direction to it is close to or keeping away from to drive two gathering groove reciprocal displacements.

The utility model provides a pair of composite yarn spins and uses short fiber roving and filament location collector adopts two designs that gather groove relative movement for replace seal wire devices such as godet wheel on the spinning frame, can adjust the filament that penetrates gather the groove and the spacing between cotton roving position according to required yarn structure, accomplish accurate regulation and control to the required structure of yarn. For example, two gathering grooves can be used for simultaneously arranging the filaments and the cotton roving to pass through from back to front, or one gathering groove is used for passing through the cotton roving, the other gathering groove is used for passing through the filaments, the distance between the filaments and the cotton roving is adjusted by adjusting the distance of the gathering grooves, meanwhile, the combination point of the filaments and the cotton roving is lifted to the inlet of the jaw line, and the yarn forming performance is improved to the maximum extent. In addition, the short fiber roving and filament positioning collector for spinning the composite yarn can be stable by means of the friction force of the leather roller and the front roller, and is convenient to install and replace.

On the basis of the technical scheme, the utility model discloses can also have following further specific selection or optimization selection.

Specifically, the protection block is an arc-shaped plate with the upper end bent backwards. The protection block is an arc-shaped plate bent backwards, and can disperse the tension of the filaments, balance the weight again and adjust the internal and external transfer forms of the filaments in the composite yarn body.

Specifically, one side of each of the two protection blocks, which is close to each other, is an arc-shaped surface with an upward opening and symmetry with each other. The design of the protection block enables the filaments to easily slide downwards into the gathering groove along the counterweight plate, and reduces the friction force on the filaments.

Specifically, the longitudinal section of the triangular stabilizing block is a right-angled triangle, the right angle of the right-angled triangle is located at the lower end, and one acute angle of the right-angled triangle extends forwards. The protection block and the triangular stabilizing block are respectively arranged at the front side and the rear side of the balancing weight block by the design, so that the gravity center balance of the balancing weight block is maintained. Simultaneously, the triangle stabilizing block that extends forward accords with the setting in space between front roller and the leather roller, and it is placed in the combination department of leather roller and front roller, its hypotenuse and leather roller cooperation, the triangle stabilizing block pass through the leather roller and make the collector subassembly remain stable with front roller syntropy frictional force, make whole composite yarn for spinning short fiber roving and filament location collector stabilize in the space between front roller and leather roller.

Specifically, the gathering groove is in a horn shape with a backward opening. Specifically, the horn mouth of the gathering groove is wide at the bottom and narrow at the top in the vertical direction, and the narrow end is a filament channel. The horizontal direction is preceding narrow wide horn mouth in back, and vertical direction is narrow wide horn mouth down, and its opening width of horn mouth is about 1cm, and the width of top end slot is 0.5mm ~ 1mm, and the depth length is 1 cm.

Specifically, the device further comprises a moving device, wherein the moving device is in transmission connection with the first counterweight plate and the second counterweight plate respectively and can drive the first counterweight plate and the second counterweight plate to move horizontally to approach or depart from each other. Specifically, the mobile device includes spout, slider and fixing bolt, the preceding terminal surface of first counterweight plate is equipped with the spout, the slider install in the rear end face of second counterweight plate to stretch into in the spout with spout sliding fit, the slider with the spout all is equipped with the through-hole of mutually supporting, fixing bolt inserts the through-hole is in order to fix the relative position of spout and slider. Or, the cross-section of spout is the I shape, fixing bolt's one end with the slider is connected, and the other end passes the second counterweight plate and be equipped with the nut, work as when the relative position of first counterweight plate and second counterweight plate needs to be fixed, only need twist the nut, through pressing from both sides tightly the fixed two relative position each other of distance between first counterweight plate and the second counterweight plate. The moving device including the sliding slot, the sliding block and the fixing bolt is only one of many means for enabling the first weight plate and the second weight plate to be close to or far away from each other along the horizontal direction through the moving device, for example, a linear module or other reciprocating devices can be implemented as well, and the details are not repeated herein.

Specifically, the first counterweight plate and/or the second counterweight plate are/is horizontally provided with scale marks used for displaying the distance between the two gathering grooves along the sliding direction of the first counterweight plate and the second counterweight plate. The scale mark line can accurately display the distance between the two gathering grooves, so that the distance between the two gathering grooves can be accurately adjusted by reading the scale.

Specifically, the upper ends of the first counterweight plate and the second counterweight plate are respectively connected with the corresponding lower ends of the protection blocks in a detachable mode, and the lower ends of the first counterweight plate and the second counterweight plate are respectively connected with the corresponding upper ends of the triangular stabilizing blocks in a detachable mode. Specifically, the detachable connection may be a plurality of forms such as a snap fit between the sliding groove and the protruding block, a riveting or a bolt connection, and the like. The balancing weight that counter weight is different can be changed to the aforesaid connection of dismantling, adjusts the collector weight is applicable to all kinds of fibre and yarn structure and spins to it is different to push down required weight to the roving strand of different specifications, changes the balancing weight of different weight, guarantees composite yarn spins the suppression effect of short fiber roving and filament location collector to roving strand, and maximum amplitude promotes the yarn performance.

Specifically, the height of the first counterweight plate and the second counterweight plate is 2-4cm, and the width of the first counterweight plate and the second counterweight plate is 3-5 cm. The weight counterbalance pieces with different specifications and weights are suitable for spinning different types of yarns.

Furthermore, the utility model also provides an use above-mentioned composite yarn to spin spinning frame with short fiber roving and filament location collector.

Compared with the prior art, the utility model has the main advantages that: the utility model provides a positioning collector of short fiber roving and filament which is convenient to use, high in precision, high in working efficiency, capable of improving product quality and suitable for spinning of various composite yarns, and has the advantages that different composite spinning methods can be adjusted at will to produce composite yarns with different yarn structures; meanwhile, the weight of the counterweight plate effectively increases the friction force when the filaments and the staple fiber roving are gathered in the gathering tank, thereby being beneficial to the full combination of the filaments and the staple fiber roving; the gathering groove can effectively gather fibers, reduce hairiness of the composite yarn and improve resultant yarn strength.

Drawings

FIG. 1 is a side view of a positioning collector for short fiber roving and filament for spinning composite yarn provided by the present invention;

fig. 2 is a front view of a positioning collector for short fiber roving and filament for spinning composite yarn provided by the utility model;

fig. 3 is a top view of a positioning collector for short fiber roving and filament for spinning composite yarn provided by the present invention;

fig. 4 is a detailed view of a moving device in a positioning collector for short fiber roving and filament for spinning composite yarn according to an embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a leather roller; 2. a front roller; 3. a first weight plate; 4. a second weight plate; 5. a protection block; 6. a triangular stabilizing block; 7. a gathering tank; 8. a filament; 9. short fiber roving; 10. a chute; 11. a slider; 12. And (5) fixing the bolt.

Detailed Description

For a better understanding of the present invention, the contents of the present invention will be further explained below with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the following embodiments.

As shown in figures 1-3, the utility model provides a short fiber roving and filament positioning collector for composite yarn spinning, which is arranged between a front roller 2 and a leather roller 1 of a spinning frame and comprises a first counterweight plate 3, a second counterweight plate 4, two protection blocks 5 and two triangular stabilizing blocks 6, wherein the first counterweight plate 3 and the second counterweight plate 4 are rectangular plates which are arranged side by side from left to right, the upper ends of the two sides far away from each other are respectively connected with the lower ends of the protection blocks 5 correspondingly arranged above, the lower ends of the two sides far away from each other are respectively connected with the upper ends of the triangular stabilizing blocks 6 correspondingly arranged below, the two triangular stabilizing blocks 6 are respectively provided with a gathering groove 7 for enabling the filament yarn 8 and the cotton roving yarn 9 to pass through, the first weight plate 3 and the second weight plate 4 can move toward or away from each other in the horizontal direction, thereby moving the two gathering tanks 7 toward or away from each other.

The utility model provides a pair of composite yarn spins and uses short fiber roving and 8 location collectors of long filament adopt two designs that gather groove 7 relative movement for replace seal wire devices such as godet wheel on the spinning frame, can adjust the spacing that penetrates long filament 8 and the 9 position intervals of cotton roving that gather groove 7 according to required yarn structure, accomplish accurate regulation and control to the required structure of yarn. For example, two gathering grooves 7 can be used for simultaneously setting the penetration of the filament 8 and the cotton roving 9, or one gathering groove 7 is used for penetrating the cotton roving 9, the other gathering groove is used for penetrating the filament 8, the distance between the filament 8 and the cotton roving 9 is adjusted by adjusting the distance of the gathering groove 7, and meanwhile, the combination point of the filament 8 and the cotton roving 9 is lifted to the inlet of the jaw line, so that the yarn forming performance is improved to the maximum extent. In addition, the short fiber roving and filament 8 positioning collector for spinning the composite yarn can be stable by means of the friction force of the leather roller 1 and the front roller 2, and is convenient to install and replace.

Preferably, the protection block 5 is an arc-shaped plate with the upper end bent backwards. The design can disperse the tension of the filament, balance the weight again and adjust the internal and external transfer forms of the filament in the composite yarn body.

Preferably, the two protection blocks 5 are provided with arc-shaped surfaces with upward openings and symmetrical to each other at the sides close to each other. The design of the protective block 5 enables the filament 8 to easily slide down into the gathering groove 7 along the counterweight plate, and reduces the friction force on the filament 8.

Preferably, the longitudinal section of the triangular stabilizing block is a right-angled triangle, the right-angled triangle is located at the lower end, and one acute angle of the right-angled triangle extends forwards. The design ensures that the protection block 5 and the triangular stabilizing block are respectively arranged at the front side and the rear side of the counterweight plate, thereby maintaining the gravity center balance. Simultaneously, the triangle stabilizing block that extends forward accords with the setting in space between front roller 2 and the leather roller 1, and it is placed in the combination department of leather roller 1 and front roller 2, its hypotenuse and the cooperation of leather roller 1, the triangle stabilizing block make the collector subassembly keep stable through leather roller 1 and front roller 2 syntropy frictional force, make whole composite yarn for spinning staple fiber roving and filament location collector stabilize in the space between front roller 2 and leather roller 1.

Preferably, the gathering tank 7 is flared in a rearward direction. Specifically, the horn mouth of the gathering groove 7 is wide at the bottom and narrow at the top in the vertical direction, and the narrow mouth end is a long filament 8 channel. The horizontal direction is preceding narrow wide horn mouth in back, and vertical direction is narrow wide horn mouth down, and its opening width of horn mouth is about 1cm, and the width of top end slot is 0.5mm ~ 1mm, and the depth length is 1 cm.

Preferably, the device further comprises a moving device, wherein the moving device is in transmission connection with the first weight plate 3 and the second weight plate 4 respectively and can drive the first weight plate and the second weight plate to move horizontally to approach or depart from each other. Specifically, the mobile device includes spout 10, slider 11 and fixing bolt 12, the preceding terminal surface of first counterweight plate 3 is equipped with spout 10, slider 11 install in the rear end face of second counterweight plate 4, and stretch into in the spout 10 with spout 10 sliding fit, slider 11 with spout 10 all is equipped with the through-hole of mutually supporting, fixing bolt 12 inserts the through-hole is in order to fix spout 10 and slider 11's relative position. Or, the cross-section of spout 10 is the I shape, the wrench movement one end of fixing bolt 12 with slider 11 is connected, and the other end passes second counterweight plate 4 is equipped with the nut, works as when the relative position of first counterweight plate 3 and second counterweight plate 4 needs to be fixed, only needs the wrench movement the nut, through pressing from both sides tightly the fixed two relative position each other of distance between first counterweight plate 3 and the second counterweight plate 4. The moving device including the sliding slot 10, the sliding block 11 and the fixing bolt 12 is only one of many means for enabling the first weight plate 3 and the second weight plate 4 to move closer to or away from each other in the horizontal direction through the moving device, such as a linear module or other reciprocating devices, and the details are not repeated herein.

Preferably, the first weight plate 3 and/or the second weight plate 4 are/is horizontally provided with scale marks for displaying the distance between the two gathering tanks 7 along the sliding direction of the two weight plates. The scale markings can accurately display the distance between the two gathering grooves 7, so that the distance between the two gathering grooves 7 can be accurately adjusted by reading the scales.

Preferably, the upper ends of the first counterweight plate 3 and the second counterweight plate 4 are respectively connected with the corresponding lower end of the protection block 5 in a detachable manner, and the lower ends of the first counterweight plate 3 and the second counterweight plate 4 are respectively connected with the corresponding upper ends of the triangular stabilizing blocks 6 in a detachable manner. Specifically, the detachable connection may be a plurality of forms such as a snap fit between the sliding groove and the protruding block, a riveting or a bolt connection, and the like. The balancing weight that counter weight is different can be changed to the aforesaid connection of dismantling, adjusts the collector weight is applicable to all kinds of fibre and yarn structure and spins to it is different to push down required weight to the roving strand of different specifications, changes the balancing weight of different weight, guarantees composite yarn spins the suppression effect of short fiber roving and 8 location collectors of long filament to roving strand, and maximum amplitude promotes the yarn performance.

Preferably, the height of the first weight plate 3 and the second weight plate 4 is 2-4cm, and the width is 3-5 cm. The weight counterbalance pieces with different specifications and weights are suitable for spinning different types of yarns.

Example 1:

and spinning the core-spun yarn composite yarn by adopting the polyester staple fiber roving with the fixed weight of 300tex and the polyester filament with the fixed weight of 125 dtex. A 21tex core yarn was spun on a JWFA1520 type spinning frame. The specific process parameters are as follows: the roving basis weight is 300 tex; the spun yarn is quantified by 21 tex; the ingot speed is 8000 r/min; the draft ratio is 14.3; the rotating speed of the leather roller 3 is 14.3 m/min; twist multiplier 335. The polyester filament yarn 8 passes through the cambered surface on the protection block 5 and is sent into a gathering groove 7 on the triangular stabilizing block 6 along the surface of the counterweight plate, and meanwhile, the short fiber roving yarn 9 sent into the jaw line passes through the gathering groove 7 which is the same as the filament yarn 8. The two-dimensional bidirectional horn mouth in the gathering groove 7 plays a role in bunching the roving strands, and the polyester filaments 8 pass through the top end narrow opening of the same gathering groove 9, so that the polyester filaments 8 are effectively positioned in the middle of the polyester staple fiber roving 9.

The surface of the core-spun yarn using the collector is smooth, the hairiness quantity is small, the gathering effect of the collector reduces the triangular area, and the hairiness and the surface structure of the yarn are greatly improved. The twisting triangular space is symmetrical and balanced in the spinning process, the fiber strips play a role in twisting the filaments 8 positioned in the center, the fibers are driven to be fully transferred inside and outside, and the amount of filoplume wrapping can be effectively increased. And the transfer amplitude and frequency of the coated fibers on the filament 8 are stabilized, the cohesion among the fibers is improved, the mutual slippage among the fibers is reduced, and the strength of the yarn is obviously improved. Compared with the traditional ring spun core spun yarn, the harmful hairiness is reduced by 40 percent when the diameter is more than 3mm, and the strength is improved by 10 percent.

Example 2:

the sirospun composite yarn is spun by adopting cotton short fiber roving with the fixed weight of 5.20g/10m and polyester filament with the fixed weight of 2.44tex/12 f. The filaments 8 are accurately positioned, and the feeding position of the filaments 8 is adjusted by selecting the distance position between the gathering groove 9 penetrated by the filaments 8 and the gathering groove 9 penetrated by the cotton roving 8, so that the siro spinning wrapping structure is regulated and controlled. The specific spinning process is that the spun yarn has the fixed quantity of 55.8 tex; the draft ratio is 10.7; the ingot speed is 8000 r/min; the rotating speed of the leather roller 3 is 14.3 m/min; twist multiplier 380. Polyester filament yarn 8 passes through the cambered surface on the protection block 5 and is sent into a gathering groove 7 on the triangular stabilizing block 6 along the surface of the balancing weight, and meanwhile, short fiber roving yarn 9 sent into the jaw line passes through the gathering groove 7 which is 7mm away from the gathering groove 7 through which the filament yarn 8 passes. The two-dimensional bidirectional horn mouth in the gathering groove 9 plays a bundling effect on the short fiber rough yarn 9, the polyester filament 8 is positioned to the narrow mouth at the top end of the gathering groove 7 at a position 7mm apart from the narrow mouth through the sliding of the counterweight plate module, and the wrapping degree of the filament 8 on the surface of the cotton yarn is effectively controlled.

By changing the relative positions of the filaments 8 and the staple rovings 9 in the spinning triangle, the yarn has different cooperative conformations of the filaments 8 and the staple rovings 9. Because the feeding position of the filament 8 is far away from the short fiber roving 9, the wrapping effect of the filament 8 on the short fiber roving 9 is tighter, the single fiber in the short fiber roving 9 can not transversely come out of the yarn body to form hairiness due to the larger influence of the torsional force, and then the single fiber passes through the gathering point and is subjected to the tighter wrapping effect of the filament 8, so that part of the hairiness is wrapped by the filament 8. Compared with the traditional sirospun composite yarn, the harmful hairiness is reduced by 23 percent by more than 3mm, and the strength is improved by 4.6 percent.

Example 3:

the device for positioning and gathering the filaments 8 and the short fiber rough yarns 9 is also suitable for various composite spinning methods such as sirofil spinning, embedded composite spinning and the like.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A short fiber roving and filament positioning collector for spinning composite yarns is arranged between a front roller (2) and a leather roller (1) of a spinning frame and is characterized by comprising a first counterweight plate (3), a second counterweight plate (4), two protection blocks (5) and two triangular stabilizing blocks (6), wherein the first counterweight plate (3) and the second counterweight plate (4) are rectangular plates which are arranged side by side from left to right, the upper ends of the two sides far away from each other are respectively connected with the lower ends of the protection blocks (5) correspondingly arranged above, the lower ends of the two sides far away from each other are respectively connected with the upper ends of the triangular stabilizing blocks (6) correspondingly arranged below, the two triangular stabilizing blocks (6) are respectively provided with a weight gathering slot (7) for enabling a filament (8) and a cotton roving (9) to pass through, and the first counterweight plate (3) and the second counterweight plate (4) move to be close to or far away from each other along the horizontal direction, thereby driving the two gathering grooves (7) to move close to or away from each other.

2. The short fiber roving and filament positioning collector for spinning composite yarns according to claim 1, characterized in that: the protection block (5) is an arc-shaped plate with the upper end bent backwards.

3. The short fiber roving and filament positioning collector for spinning composite yarns according to claim 2, characterized in that: one sides of the two protection blocks (5) close to each other are arc-shaped surfaces with upward openings and symmetry with each other.

4. The short fiber roving and filament positioning collector for spinning composite yarns according to claim 1, characterized in that: the longitudinal section of the triangular stabilizing block (6) is a right-angled triangle, the right angle of the right-angled triangle is positioned at the lower end, and one acute angle of the right-angled triangle extends forwards.

5. The short fiber roving and filament positioning collector for spinning composite yarns according to claim 1, characterized in that: the gathering groove (7) is a horn mouth which is narrow in the front and wide in the rear in the horizontal direction and narrow in the upper part and wide in the lower part in the vertical direction, the diameter of the opening end of the horn mouth is 1cm, the diameter of the narrow mouth at the top end is 0.5 mm-1 mm, and the depth length is 1 cm.

6. A collector for positioning the roving and filament of staple fiber for spinning composite yarn according to any one of claims 1 to 5, characterized in that: the movable device is in transmission connection with the first counterweight plate (3) and the second counterweight plate (4) respectively and can drive the first counterweight plate and the second counterweight plate to move horizontally to be close to or far away from each other.

7. The short fiber roving and filament positioning collector for spinning composite yarns according to claim 6, characterized in that: the mobile device comprises a sliding groove (10), a sliding block (11) and a fixing bolt (12), the front end face of the first counterweight plate (3) is provided with the sliding groove (10), the sliding block (11) is installed on the rear end face of the second counterweight plate (4) and extends into the sliding groove (10) and the sliding groove (10) in a sliding fit mode, the sliding block (11) and the sliding groove (10) are respectively provided with a through hole matched with each other, and the fixing bolt (12) is inserted into the through hole to fix the relative positions of the sliding groove (10) and the sliding block (11).

8. The short fiber roving and filament positioning collector for spinning composite yarns according to claim 6, characterized in that: and scale marks for displaying the distance between the two gathering grooves (7) are horizontally arranged on the first counterweight plate (3) and/or the second counterweight plate (4) along the sliding direction of the two.

9. The short fiber roving and filament positioning collector for spinning composite yarns according to claim 6, characterized in that: the upper end of first counterweight plate (3) and second counterweight plate (4) respectively with correspond the connection can be dismantled to the lower extreme of protection piece (5), the lower extreme of first counterweight plate (3) and second counterweight plate (4) respectively with correspond with the connection can be dismantled to the upper end of triangle steady block (6).

10. A spinning frame is characterized in that: a short fiber roving and filament positioning collector for spinning composite yarns according to any one of claims 1 to 9 is arranged between a front roller (2) and a leather roller (1) of the spinning machine.