CN218203230U - Special-shaped section pipe for compact spinning - Google Patents
Special-shaped section pipe for compact spinning Download PDFInfo
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- CN218203230U CN218203230U CN202221581346.1U CN202221581346U CN218203230U CN 218203230 U CN218203230 U CN 218203230U CN 202221581346 U CN202221581346 U CN 202221581346U CN 218203230 U CN218203230 U CN 218203230U
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Abstract
The utility model discloses a special-shaped section tube for compact spinning, which comprises a negative pressure tube body, wherein a guide surface and an assembly part are formed on the negative pressure tube body; the negative pressure pipe body is internally provided with a negative pressure cavity, the negative pressure cavity is an abnormal cavity, the cross section of the negative pressure cavity is of an inverted trapezoid structure and is arranged along the length direction of the negative pressure pipe body, a trapezoid lower bottom corresponding to the inverted trapezoid cross section is replaced by a smooth curved surface consistent with the guide surface, arc-shaped inner contraction parts are arranged on two sides of the inverted trapezoid cross section, and arc-shaped air guide surfaces protruding towards the negative pressure cavity side are arranged on the inner contraction parts; the lower surface of the negative pressure pipe body is formed with an air suction hole connected with the negative pressure cavity, the corresponding guide surface is formed with a plurality of gathering grooves connected with the negative pressure cavity, and the surfaces of the gathering grooves are wrapped with a grid porous rubber ring. The utility model discloses can effectively improve the effect that gathers of the must strip of yarn, reduce the marginal filoplume volume of yarn, along the maintenance cycle of the maintenance of effective extension equipment, prolong the life of negative pressure pipe body simultaneously.
Description
Technical Field
The utility model relates to a textile processing technology field, concretely relates to special-shaped cross section pipe device for closely spinning.
Background
The existing compact spinning technology is mainly formed by reforming a ring spinning frame, in the process of compact spinning, a gathering device is added between a drafting part and a yarn forming part, drafted fiber strands are transversely gathered by utilizing an air flow or a mechanical device, the width of the fiber strands is reduced under the action of the gathering force, an original spinning triangular area is eliminated or basically does not exist, the twisting of the yarn fiber strands is realized in a parallel and compact state, the drafting and gathering separation is realized, the hairiness of the formed yarn can be greatly reduced, the strength of the yarn is improved, and the yarn body is smooth, compact and firm.
The yarn strand is delivered from the front opening of the front roller under the action of negative pressure air flow, passes through the guide surface of the special-shaped section pipe, is gathered on the gathering groove along with the rotation and delivery of the grid porous rubber ring, is controlled on a driving roller by the delivery sizing roller on the downstream side of the grid porous rubber ring, is twisted by a spindle and a steel collar, is gathered and rotated to be gradually changed from a flat belt shape into a cylinder, and the ends of the fibers are twisted into the yarns to form a bundle of parallel and tightly gathered yarns. In a thread (Suessen) compact spinning device, a special-shaped section pipe directly influences the processing quality of compact spinning, but the existing special-shaped negative pressure suction pipe is too simple in design, the gathering tightness of yarn strands is difficult to control, the gathering effect is still to be improved, the edges of the yarn strands still generate a certain proportion and quantity of yarn hairiness after passing through a negative pressure pipe, and the using effect is still to be improved.
SUMMERY OF THE UTILITY MODEL
The technical problem solved by the utility model is to provide a special-shaped section pipe for closely spinning to solve the defect in the above-mentioned technical background.
The utility model discloses the technical problem who solves adopts following technical scheme to realize:
a special-shaped section tube for compact spinning comprises a negative pressure tube body, wherein a guide surface is formed on the upper surface of the negative pressure tube body, and the guide surface is an outward-convex smooth curved surface; an assembly part for fixing the position of the negative pressure pipe body in front of the drafting device is formed on the lower surface of the negative pressure pipe body;
the negative pressure pipe body is provided with a negative pressure cavity which is a special-shaped cavity, the section of the special-shaped cavity is of an inverted trapezoidal structure and is arranged along the length direction of the negative pressure pipe body, the lower bottom of the trapezoid corresponding to the section is replaced by a smooth curved surface consistent with the guide surface, arc-shaped inward-contracting parts are arranged on two sides of the section, and the inward-contracting parts are provided with arc-shaped air guide surfaces protruding towards the negative pressure cavity side;
the lower surface of the negative pressure pipe body is provided with an air suction hole connected with the negative pressure cavity, the corresponding guide surface is provided with a plurality of gathering grooves connected with the negative pressure cavity, and the surfaces of the gathering grooves are wrapped with grid porous rubber rings.
By way of further limitation, the mounting portion is an i-shaped slot or a dovetail slot.
The arc-shaped inner contraction part is formed by molding a rubber material, and the cross section of the arc-shaped inner contraction part is in a semi-drop shape with a small upper part and a big lower part.
By way of further limitation, the air suction holes are a plurality of circular air suction holes, and the air suction holes are arranged on the lower surface of the negative pressure pipe body at equal intervals.
By way of further limitation, the air suction holes are elongated air suction holes and are arranged on the lower surface of the negative pressure pipe body along the length direction of the negative pressure pipe body.
As a further limitation, the gathering grooves are arranged on the guide surface at equal intervals;
the gathering groove is a slender strip-shaped groove, the width of two sides of the strip-shaped groove is larger than the width of the middle of the gathering groove, the gathering groove is obliquely arranged on the guide surface, and an included angle between the obliquely arranged strip-shaped groove and the length direction of the guide surface is 75-80 degrees.
As a further limitation, a transverse groove is arranged at the middle position of the gathering groove, the transverse groove and the gathering groove are arranged in a staggered manner, and a transverse groove rubber strip matched with the transverse groove is embedded in the transverse groove;
the coverage area of the transverse groove adhesive tape on the gathering groove is 10-15% of the projection area of the gathering groove;
the transverse groove rubber strip is preferably arranged at the position of the gathering groove corresponding to 1/3 of the length of the gathering groove at the feeding side.
As a further limitation, the grid porous rubber ring is a rubber ring structure formed by vulcanized rubber, and meshes are uniformly formed on the rubber ring structure.
Has the advantages that: the utility model relates to a dysmorphism cross section pipe for closely spinning, this dysmorphism cross section pipe can replace traditional water droplet shape cross section pipe on the device is closely spun in thread senson (Suessen), it is through setting up the negative pressure chamber, when making utilize this dysmorphism cross section pipe to carry out negative pressure and adsorb, can make the fibre palpus strip carry out the shape through the increase negative pressure value and gather the time palpus strip laminating and more closely eliminate the spinning triangle-shaped district, and then reduce the filoplume quantity at palpus strip edge, and simultaneously, the cooperation through cross slot adhesive tape and slant gathering groove can effectively improve the result of use of the porous rubber ring of net, prevent that it from taking place aversion and loss in the use, and then the maintenance cycle of extension equipment.
Drawings
Fig. 1 is a schematic structural diagram of the present invention with a preferred embodiment removed.
Fig. 2 is a side sectional view of the structure of fig. 1.
Wherein: 1. a negative pressure tube body; 2. a suction hole; 3. a gathering tank; 4. a grid porous rubber ring; 5. a transverse groove adhesive tape; 6. a guide surface; 7. a negative pressure chamber; 8. mounting grooves; 9. a dovetail groove; 10. an arc-shaped adduction part.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
Referring to fig. 1-2, a preferred embodiment of the special-shaped cross-section tube for compact spinning, in this embodiment, the special-shaped cross-section tube for compact spinning includes a negative pressure tube body 1, two ends of the negative pressure tube body 1 are closed, a negative pressure cavity 7 is formed in the middle of the negative pressure tube body 1, the negative pressure tube body 1 is a special-shaped tube body, and a side cross-sectional structural view thereof is shown in fig. 2:
the negative pressure tube body 1 comprises an upper surface as a guide surface 6 and a lower surface as an assembly surface, the outer surface of the guide surface 6 is a continuous smooth convex cambered surface, six gathering grooves 3 are uniformly arranged on the guide surface 6 at equal intervals, the gathering grooves 3 are through grooves, the lower parts of the gathering grooves are connected with a negative pressure cavity 7, the six gathering grooves 3 are in the same shape and structure and are elongated grooves, the widths of two sides of the gathering grooves 3 are larger than the width of the middle of the gathering grooves, and the gathering grooves are obliquely arranged in the length direction of the guide surface 6, in the embodiment, the included angle between the obliquely arranged gathering grooves 3 and the length direction of the guide surface is 80 degrees, the continuous cambered surface guide surface 6 and the gathering grooves 3 are matched to have stronger mechanical performance influence on the fiber strands in motion, the gathering effect is better, and when the gathering grooves 3 are in a working state, the fiber strands in motion can be adsorbed by sleeving the surfaces of the grid porous rubber rings 4, and further the effect of eliminating a spinning triangular area is achieved.
Meanwhile, in this embodiment, a transverse groove is provided at a position corresponding to 1/3 of the length of the collecting groove 3 on the feeding side, the transverse groove is a blind groove and penetrates through the collecting groove 3 in the width direction of the position, a transverse groove adhesive tape 5 matched with the transverse groove is embedded in the transverse groove, the transverse groove adhesive tape 5 is used for being matched with the grid porous rubber ring 4, the grid porous rubber ring 4 is prevented from shifting in the working process when being sleeved on the negative pressure tube body 1, and in order to reduce the adsorption effect of the transverse groove adhesive tape 5 on the negative pressure cavity 7 side, the coverage area of the transverse groove adhesive tape 5 on the collecting groove 3 is 12% of the projection area of the collecting groove 3.
In this embodiment, the transverse groove rubber strip 5 and the grid porous rubber ring 4 are made of vulcanized rubber of the same material, and meshes are uniformly formed on the rubber ring surface of the grid porous rubber ring 4.
A dovetail groove 9 is formed on the mounting surface of the negative pressure tube body 1 as a mounting portion by which the negative pressure tube body can be positionally fixed and mounted before the draft device. Meanwhile, three air suction holes 2 are formed in the assembling surface, the three air suction holes 2 are circular holes, the upper portions of the three air suction holes 2 are communicated with the negative pressure cavity 7, and the lower portions of the three air suction holes can be connected with a negative pressure generating device, so that working negative pressure is generated in the negative pressure cavity 7 through the action of the connected negative pressure generating device.
In another embodiment, the suction holes 2 can be replaced by long-strip-shaped suction holes arranged along the length direction of the negative pressure tube body, and the effect is similar.
The main structure of the negative pressure cavity 7 of the present embodiment is an inverted trapezoidal structure as shown in the figure, the upper bottom of the inverted trapezoidal structure corresponds to the assembly portion, and the lower bottom is replaced by a smooth curved surface consistent with the guide surface 6, meanwhile, arc-shaped inside-contracting portions 10 are formed on both sides of the negative pressure cavity 7, the arc-shaped inside-contracting portions 10 are formed by plastic materials and are adhered to both side walls of the negative pressure cavity 7 through adhesives, the cross section of the arc-shaped inside-contracting portions 10 is in a semi-water-drop shape with a small upper part and a large lower part, so as to form an inside-contracting portion similar to the inside-contracting neck structure in the vertical upward direction of the negative pressure cavity 7.
In this embodiment, the arc-shaped inside contraction part 10 can obtain a more excellent collecting effect on the guide surface 6 when the wind pressure (absolute value) is increased at the position of the air intake hole 2; particularly, when larger negative pressure is generated at the position of the air suction hole 2, the uniform gathering effect on the guide surface 6 can be enhanced; if the arc-shaped inward-closing part 10 is not arranged, when a larger negative pressure is used for adsorption on the air suction holes 2, the adsorption force of the middle position of the gathering groove 3 is obviously larger than that of the outer side, so that large abrasion is easily generated at the corresponding position of the grid porous rubber ring 4 after a period of use, blockage is easily generated, frequent cleaning is needed, and the gathering effect is slightly poor.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes, modifications and/or alterations to the present invention may be made by those skilled in the art after reading the technical disclosure of the present invention, and all such equivalents may fall within the scope of the present invention as defined by the appended claims.
Claims (10)
1. The special-shaped cross section tube for compact spinning is characterized by comprising a negative pressure tube body, wherein a guide surface is formed on the upper surface of the negative pressure tube body, and the guide surface is an outward-convex smooth curved surface; an assembly part for fixing the position of the negative pressure pipe body in front of the drafting device is formed on the lower surface of the negative pressure pipe body;
the negative pressure pipe body is provided with a negative pressure cavity which is a special-shaped cavity, the section of the special-shaped cavity is of an inverted trapezoidal structure and is arranged along the length direction of the negative pressure pipe body, the lower bottom of the trapezoid corresponding to the section is replaced by a smooth curved surface consistent with the guide surface, arc-shaped inward-contracting parts are arranged on two sides of the section, and the inward-contracting parts are provided with arc-shaped air guide surfaces protruding towards the negative pressure cavity side;
the lower surface of the negative pressure pipe body is provided with an air suction hole connected with the negative pressure cavity, the corresponding guide surface is provided with a plurality of gathering grooves connected with the negative pressure cavity, and the surfaces of the gathering grooves are wrapped with grid porous rubber rings.
2. The profiled cross-section tube for compact spinning of claim 1, wherein the fitting is an I-shaped groove or a dovetail groove.
3. The profiled cross-section tube for compact spinning of claim 1, wherein the curved adduction portion is formed of a rubber material and has a semi-drop shape with a cross section that is small at the top and large at the bottom.
4. The profiled cross-section tube for compact spinning of claim 1, wherein the air suction holes are a plurality of circular air suction holes, and the plurality of air suction holes are arranged at equal intervals on the lower surface of the negative pressure tube body.
5. The profiled cross-section tube for compact spinning as claimed in claim 1, wherein the suction hole is an elongated suction hole provided on a lower surface of the negative pressure tube body along a length direction of the negative pressure tube body.
6. A shaped cross-section tube for compact spinning as claimed in claim 1, wherein the nesting grooves are equally spaced on the guide surface.
7. The profiled cross-section tube for compact spinning as claimed in claim 6, wherein the gathering groove is an elongated strip groove having a width on both sides greater than a width in the middle and disposed diagonally on the guide surface, the diagonally disposed strip groove having an angle of 75 to 80 ° with a length direction of the guide surface.
8. The special-shaped cross-section tube for compact spinning according to claim 1, wherein the gathering groove is provided with a transverse groove at a middle position, the transverse groove and the gathering groove are staggered, and a transverse groove rubber strip matched with the transverse groove is embedded in the transverse groove.
9. The profiled cross-section tube for compact spinning of claim 8, wherein the area covered by the cross-slot adhesive tape on the gathering tank is 10-15% of the projected area of the gathering tank.
10. The profiled cross-section tube for compact spinning of claim 8, wherein the cross-slot strip is disposed on the gathering tank at a position corresponding to 1/3 of the length of the gathering tank on the feeding side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221581346.1U CN218203230U (en) | 2022-06-23 | 2022-06-23 | Special-shaped section pipe for compact spinning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221581346.1U CN218203230U (en) | 2022-06-23 | 2022-06-23 | Special-shaped section pipe for compact spinning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218203230U true CN218203230U (en) | 2023-01-03 |
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ID=84648262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221581346.1U Active CN218203230U (en) | 2022-06-23 | 2022-06-23 | Special-shaped section pipe for compact spinning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218203230U (en) |
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2022
- 2022-06-23 CN CN202221581346.1U patent/CN218203230U/en active Active
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