CN115110214A - Hollow pricker structure - Google Patents
Hollow pricker structure Download PDFInfo
- Publication number
- CN115110214A CN115110214A CN202210880968.2A CN202210880968A CN115110214A CN 115110214 A CN115110214 A CN 115110214A CN 202210880968 A CN202210880968 A CN 202210880968A CN 115110214 A CN115110214 A CN 115110214A
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- CN
- China
- Prior art keywords
- needle
- hollow
- needle tube
- tube
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 39
- 239000007787 solid Substances 0.000 claims abstract description 23
- 238000009950 felting Methods 0.000 abstract description 4
- 239000000805 composite resin Substances 0.000 abstract description 3
- 229920005992 thermoplastic resin Polymers 0.000 abstract description 3
- 238000003672 processing method Methods 0.000 abstract description 2
- 239000004744 fabric Substances 0.000 description 17
- 229920000049 Carbon (fiber) Polymers 0.000 description 16
- 239000004917 carbon fiber Substances 0.000 description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 16
- 239000003365 glass fiber Substances 0.000 description 13
- 239000002131 composite material Substances 0.000 description 12
- 229910001220 stainless steel Inorganic materials 0.000 description 10
- 239000010935 stainless steel Substances 0.000 description 10
- 239000000047 product Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 239000000835 fiber Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 239000011165 3D composite Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B85/00—Needles
- D05B85/10—Hollow needles
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B85/00—Needles
- D05B85/02—Needles with slotted eyes, i.e. with a slit leading to the eye for thread insertion
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a hollow needle structure, which comprises a solid needle, wherein the solid needle comprises a needle point and a needle tail rod which are integrally arranged, and the needle point is used for driving a hollow needle and yarns to penetrate through a material to be processed; the hollow needle tube comprises a needle tube body, a needle tube cavity is formed in the needle tube body, and the tail rod of the needle head is inserted into and assembled in the needle tube cavity; one or two needle holes are formed in the needle tube body, and the needle holes are communicated with the cavity of the needle tube; the end part of the yarn penetrates through the needle tube cavity and the needle eye in sequence and then penetrates out. The yarns need to penetrate through the hollow pipe of the hollow felting needle and penetrate out of the end hole, double yarns are formed inside and outside the hollow felting needle, and the hollow needle is used for processing a flexible material, so that a plurality of material attributes with excellent performance can be obtained, and the processing method is significant, especially for processing a thermoplastic resin composite material.
Description
Technical Field
The invention relates to the technical field of fiber preform processing, in particular to a hollow pricker structure.
Background
With the more widespread and extensive use of fiber composite materials, the processing of fibrous semi-finished products is more and more frequent. Traditionally, steel needles have been used for many years to stitch fiber yarns through fabrics or flexible materials, and when the materials are thick and dense, stitching is difficult, which is inefficient and results in broken needles. The market for industrial grade hollow needles is at a gap. In the prior art, a hollow needle is used for embroidery and medical suture, but the application of the hollow needle in industry is blank, on one hand, industrial products are high in hardness and density, on the other hand, high-speed suture is frequently used in industry, the wear resistance of the hollow needle is greatly challenged, and the material of the hollow needle is very important.
In fact, many industrial products are flexible or semi-flexible in their semi-finished form and require reinforcing processes. With the rapid progress and development of new material manufacturing industry, some high-performance products have certain flexibility in a semi-product state, such as composite materials, and the manufactured fiber preforms or prepregs can be easily subjected to processing such as needling. In order to improve the variety adaptability and flexibility of some industrial product processing, it is necessary to develop a multipurpose hollow needle with multiple functions.
Disclosure of Invention
The invention aims to provide a hollow pricker structure, which aims to solve the problems in the prior art, and a composite material with excellent performance and a product thereof can be prepared by processing a flexible material through a hollow needle.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a hollow pricker structure, which comprises
The solid needle comprises a needle point and a needle tail rod which are integrally arranged, and the needle point is used for driving a hollow puncture needle and yarns to penetrate through a material to be processed;
the hollow needle tube comprises a needle tube body, a needle tube cavity is formed in the needle tube body, and the tail rod of the needle head is inserted into and assembled in the needle tube cavity; one or two needle holes are formed in the needle tube body, and the needle holes are communicated with the cavity of the needle tube; the end part of the yarn penetrates through the needle tube cavity and the needle eye in sequence and then penetrates out.
In one embodiment, the needle tube body is provided with two needle holes, the two needle holes are respectively a first needle hole and a second needle hole, and the first needle hole and the second needle hole are symmetrically distributed along the axial direction of the needle tube body.
In one embodiment, the yarns comprise a first yarn and a second yarn, the first yarn penetrates through the first needle hole after penetrating from the end part of the needle tube cavity, and the second yarn penetrates through the second needle hole after penetrating from the end part of the needle tube cavity.
In one embodiment, the solid needle and the hollow needle tube are made of hard materials.
In one embodiment, the solid needle is made of a hard material, and the hollow needle tube is made of a deformable material.
In one embodiment, the outer diameter of the hollow needle tube is 0.2mm-8mm, and the inner diameter of the hollow needle tube is 0.1mm-6 mm.
In one embodiment, the maximum outer diameter of the needle tip is larger than or equal to the outer diameter of the hollow needle tube.
In one embodiment, the edges of the first needle eye and the second needle eye are rounded.
Compared with the prior art, the invention has the following beneficial technical effects:
the hollow pricker structure comprises a solid needle head and a hollow needle tube, wherein a needlepoint of the solid needle head is used for driving the hollow pricker and yarns to penetrate through a material to be processed; a needle tube cavity is arranged in a needle tube body of the hollow needle tube, and a tail rod of the needle head is inserted and assembled in the needle tube cavity; the needle tube body is provided with a first needle eye and a second needle eye which are communicated with the cavity of the needle tube; the end part of the yarn penetrates through the first needle hole, the needle tube cavity and the second needle hole in sequence and then penetrates out. The yarns need to penetrate through the hollow pipe of the hollow felting needle and penetrate out of the end hole, double yarns are formed inside and outside the hollow felting needle, and the hollow needle is used for processing a flexible material, so that a plurality of material attributes with excellent performance can be obtained, and the processing method is significant, especially for processing a thermoplastic resin composite material.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a hollow lancet in an embodiment of the invention;
FIG. 2 is an exploded view of a hollow spike in an embodiment of the present invention;
FIG. 3 is a drawing of the connection of hollow needles to yarns in an embodiment of the present invention;
200-yarn, 400-hollow needle tube, 500-needle eye, 600-solid needle, 700-needle tail rod, 800-needle tube cavity and 900-needle point.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a hollow pricker structure, which aims to solve the problems in the prior art, and a composite material with excellent performance and a product thereof can be prepared by processing a flexible material through a hollow needle.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1-3, the present invention provides a hollow needle structure, which includes a solid needle 600, the solid needle 600 includes a needle tip 900 and a needle tail rod 700, which are integrally arranged, the needle tip 900 is used to drive the hollow needle and a yarn 200 to penetrate through a material to be processed; the hollow needle tube 400, the hollow needle tube 400 includes the needle tube body, there is a cavity 800 in the needle tube body, the needle tail rod 700 is inserted and assembled in the cavity 800 of the needle tube; the needle tube body is provided with a first needle eye and a second needle eye, and the first needle eye and the second needle eye are respectively positioned at two sides of the needle tube cavity 800 and communicated with the needle tube cavity 800; the ends of the yarn 200 pass through the first eye, the needle tube cavity 800 and the second eye in sequence and then exit.
In one embodiment, the needle tube body is symmetrically provided with a first needle hole and a second needle hole along the axial direction of the needle tube body. The opposed double needle holes are used to pass the double yarn, the yarn 200 is passed through the hollow needle and out of the end needle hole. The yarn 200 is passed through the hollow tube of the hollow needle and out of the end holes, forming a double yarn inside and outside the hollow needle, which carries the yarn 200 into or through the flexible material, and then withdrawing the hollow needle so that the yarn remains in or passes through the flexible material. The local strength of the composite material can be enhanced by sewing or needling the multi-layer fabric or fabric lap or the multi-layer prepreg or prepreg lap using the hollow needling with the yarns 200.
In one embodiment, the solid needle 600 and the hollow needle tube 400 are made of hard materials, and the hollow needle is a rigid needle; the rigid needling linearly punctures the flexible material.
In yet another embodiment, the solid needle 600 is made of a hard material and the hollow needle tube 400 is made of a deformable material, in which case the hollow needle is a flexible needle; the flexible needle can perform curve puncture on the flexible material. The front and back needling treatment can be carried out on the thick flexible material to achieve the effect or purpose of rapid enhancement, and the front and back needling treatment and curve needling can be carried out on the flexible material with a complex shape to obtain the flexible material prefabricated body with the three-dimensional structure.
In one embodiment, the hollow needle tube has an outer diameter of 0.2mm to 8mm and an inner diameter of 0.1mm to 6 mm.
In one embodiment, the maximum outer diameter of the needle tip is greater than or equal to the outer diameter of the hollow needle cannula.
In one embodiment, the edges of the first needle eye and the second needle eye are rounded.
Example one
The hollow needle is made of stainless steel, the outer diameters of the solid needle 600 and the hollow needle tube 400 are the same, and the outer diameter of the needle tail rod 700 is the same as the inner diameter of the hollow needle tube 400. The needle tail rod 700 is inserted into the end of the hollow tube, a needle eye 500 or a needle hole is distributed on the hollow needle tube 400 which is far away from the top end of the tail rod, glass fiber yarns penetrate through the hollow needle tube 400 and penetrate out of the needle eye 500 or the needle hole, and the multilayer glass fiber cloth is sewn or needled, so that the glass fiber cloth layers are connected into a whole, and the integral effect of non-layering is achieved.
Example two
The hollow needle is made of stainless steel, the outer diameters of the solid needle 600 and the hollow needle tube 400 are the same, and the outer diameter of the needle tail rod 700 is the same as the inner diameter of the hollow needle tube 400. The tail rod of the needle head part is inserted into the end head of the hollow tube, a needle eye 500 or a needle hole is distributed on the hollow needle tube 400 away from the top end of the tail rod, carbon fiber yarns penetrate through the hollow needle tube 400 and penetrate out of the needle eye 500 or the needle hole, and the multi-layer carbon fiber cloth is sewn or needled, so that the carbon fiber cloth layers are connected into a whole, and the integral effect of no layering is achieved.
EXAMPLE III
The hollow needle is made of stainless steel, the solid needle 600 and the hollow needle tube 400 have the same outer diameter, and the tail rod 700 has the same outer diameter as the hollow needle tube 400. The tail rod of the needle head part is inserted into the end head of the hollow tube, two opposite needle holes or needle holes are distributed on the hollow needle tube 400 away from the top end of the tail rod, two glass fiber yarns simultaneously penetrate through the hollow needle tube 400 and respectively penetrate out of the opposite needle holes 500 or needle holes, and the multilayer glass fiber cloth is sewn or needled, so that the glass fiber cloth layers are connected into a whole, and the integral effect of no layering is achieved.
Example four
The hollow needle is made of stainless steel, the outer diameters of the solid needle 600 and the hollow needle tube 400 are the same, and the outer diameter of the needle tail rod 700 is the same as the inner diameter of the hollow needle tube 400. The tail rod of the needle head part is inserted into the end head of the hollow tube, two opposite needle holes 500 or needle holes are distributed on the hollow needle tube away from the top end of the tail rod, two carbon fiber yarns simultaneously penetrate through the hollow needle tube 400 and respectively penetrate out of the opposite needle holes 500 or needle holes, and the multilayer carbon fiber fabric or carbon fiber felt is sewn or needled, so that the carbon fiber fabric or the carbon fiber felt is connected into a whole and has a non-layered integral effect.
EXAMPLE five
The thermosetting resin hollow needle tube 400 is prepared by adopting a glass fiber pultrusion process, and the solid needle head 600 is prepared by adopting stainless steel. The solid needle 600 and the hollow needle tube 400 have the same outer diameter, and the needle tail 700 has the same outer diameter as the hollow needle tube 400. Inserting a tail rod of a needle head part into the end head of a hollow tube, distributing a needle eye 500 or a needle hole on the hollow tube far away from the top end of the tail rod, penetrating glass fiber yarns through the hollow tube 400 and out of the needle eye 500 or the needle hole, injecting epoxy resin into a plurality of hollow tubes penetrated with the glass fiber yarns to ensure that the glass fiber yarns in the needle tubes are impregnated with the resin, heating to ensure that the glass fiber yarns and the resin in the needle tubes are cured, integrally puncturing the multilayer glass fiber cloth by utilizing the cured composite material needle tubes and a stainless steel needle head, respectively pulling out the stainless steel needle head, leaving the composite material needle tubes in the multilayer glass fiber cloth, and carrying out secondary heating and curing when preparing the multilayer cloth composite material to prepare the high-thickness three-dimensional composite material.
EXAMPLE six
The thermosetting resin hollow needle tube 400 is prepared by a carbon fiber pultrusion process, and the solid needle head 600 is prepared by stainless steel. The solid needle 600 and the hollow needle tube 400 have the same outer diameter, and the needle tail 700 has the same outer diameter as the hollow needle tube 400. Inserting a tail rod of a needle head part into the end head of a hollow tube, distributing two needle holes 500 or needle holes on the hollow needle tube 400 which is far away from the top end of the tail rod, penetrating carbon fiber yarns through the hollow needle tube 400 and out of the needle holes 500 or needle holes, injecting epoxy resin into a plurality of hollow tubes which are penetrated with the carbon fiber yarns to ensure that the carbon fiber yarns in the needle tubes are impregnated with the resin, heating to ensure that the carbon fiber yarns and the resin in the needle tubes are cured, integrally puncturing the multi-layer carbon fiber cloth by utilizing the cured composite material needle tube and a stainless steel needle head, respectively pulling out the stainless steel needle head, leaving the composite material needle tube in the multi-layer carbon fiber cloth, and carrying out secondary heating and curing when preparing the multi-layer cloth composite material to prepare the high-thickness three-dimensional carbon fiber composite material.
According to the hollow needle structure, the yarns 200 made of some special fibers have certain temperature resistance, and many new materials have certain flexibility or deformability after being heated, so that a plurality of material attributes with excellent performance can be obtained by processing the materials at a certain temperature, namely processing the flexible materials by using the hollow needle, and the hollow needle structure is significant, particularly processing thermoplastic resin composite materials.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. A hollow lancet structure, comprising: comprises that
The solid needle comprises a needle point and a needle tail rod which are integrally arranged, and the needle point is used for driving a hollow puncture needle and yarns to penetrate through a material to be processed;
the hollow needle tube comprises a needle tube body, a needle tube cavity is formed in the needle tube body, and the tail rod of the needle head is inserted into and assembled in the needle tube cavity; one or two needle holes are formed in the needle tube body, and the needle holes are communicated with the cavity of the needle tube; the end part of the yarn penetrates through the needle tube cavity and the needle eye in sequence and then penetrates out.
2. The hollow lancet structure of claim 1, wherein: the needle tube body is provided with two needle holes, the two needle holes are respectively a first needle hole and a second needle hole, and the first needle hole and the second needle hole are symmetrically distributed along the axis direction of the needle tube body.
3. The hollow lancet structure of claim 2, wherein: the yarn includes first yarn and second yarn, first yarn certainly follow after the tip of needle tubing cavity penetrates first pinhole is worn out, the second yarn certainly follow after the tip of needle tubing cavity penetrates the second pinhole is worn out.
4. The hollow lancet structure of claim 1, wherein: the solid needle head and the hollow needle tube are both made of hard materials.
5. The hollow lancet structure of claim 1, wherein: the solid needle head is made of hard materials, and the hollow needle tube is made of deformable materials.
6. The hollow lancet structure of claim 1, wherein: the outer diameter of the hollow needle tube is 0.2mm-8mm, and the inner diameter of the hollow needle tube is 0.1mm-6 mm.
7. The hollow lancet structure of claim 1, wherein: the maximum outer diameter of the needle tip is larger than or equal to the outer diameter of the hollow needle tube.
8. The hollow lancet structure of claim 2, wherein: the edges of the first needle eye and the second needle eye are processed by round corners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210880968.2A CN115110214B (en) | 2022-07-26 | 2022-07-26 | Hollow needle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210880968.2A CN115110214B (en) | 2022-07-26 | 2022-07-26 | Hollow needle structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115110214A true CN115110214A (en) | 2022-09-27 |
| CN115110214B CN115110214B (en) | 2024-04-30 |
Family
ID=83333933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210880968.2A Active CN115110214B (en) | 2022-07-26 | 2022-07-26 | Hollow needle structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115110214B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003019380A (en) * | 2001-07-05 | 2003-01-21 | Mariko Chiba | Repair needle for pushing fivers unsewn |
| JP2008018149A (en) * | 2006-07-14 | 2008-01-31 | Teiboo Kk | Sewing needle |
| KR20080090344A (en) * | 2007-04-04 | 2008-10-08 | 정우종 | Needle including a hole havig a changealbe form |
| CN201305750Y (en) * | 2008-10-27 | 2009-09-09 | 郑隆玫 | Double-hole needle |
| CN201686838U (en) * | 2010-05-12 | 2010-12-29 | 潘旭 | Double-hole needle |
| KR102262528B1 (en) * | 2020-02-20 | 2021-06-07 | 정세찬 | Splittable needle for easy knots |
-
2022
- 2022-07-26 CN CN202210880968.2A patent/CN115110214B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003019380A (en) * | 2001-07-05 | 2003-01-21 | Mariko Chiba | Repair needle for pushing fivers unsewn |
| JP2008018149A (en) * | 2006-07-14 | 2008-01-31 | Teiboo Kk | Sewing needle |
| KR20080090344A (en) * | 2007-04-04 | 2008-10-08 | 정우종 | Needle including a hole havig a changealbe form |
| CN201305750Y (en) * | 2008-10-27 | 2009-09-09 | 郑隆玫 | Double-hole needle |
| CN201686838U (en) * | 2010-05-12 | 2010-12-29 | 潘旭 | Double-hole needle |
| KR102262528B1 (en) * | 2020-02-20 | 2021-06-07 | 정세찬 | Splittable needle for easy knots |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115110214B (en) | 2024-04-30 |
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