CN112030373A - Curved surface pricking pin and manufacturing method thereof - Google Patents
Curved surface pricking pin and manufacturing method thereof Download PDFInfo
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- CN112030373A CN112030373A CN202010443756.9A CN202010443756A CN112030373A CN 112030373 A CN112030373 A CN 112030373A CN 202010443756 A CN202010443756 A CN 202010443756A CN 112030373 A CN112030373 A CN 112030373A
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- puncture
- curved surface
- curved
- needle
- lancet
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000004080 punching Methods 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 claims description 5
- 238000009950 felting Methods 0.000 abstract description 19
- 239000004744 fabric Substances 0.000 abstract description 13
- 239000004745 nonwoven fabric Substances 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 241001391944 Commicarpus scandens Species 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 abstract description 3
- 239000000835 fiber Substances 0.000 description 22
- 230000000694 effects Effects 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 241000482237 Senegalia mellifera Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010273 cold forging Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H18/00—Needling machines
- D04H18/02—Needling machines with needles
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention relates to the technical field of non-woven fabric equipment, and in one aspect, provides a curved surface pricking pin which comprises a pricking part; the puncturing part is provided with a plurality of puncturing edges, and a concave curved surface is formed between every two adjacent puncturing edges. In another aspect, a method of manufacturing a curved lancet is provided, the method comprising: and punching the columnar blank, and pressing and forming the piercing arris and simultaneously forming the adjacent curved surfaces. By applying the technical scheme of the invention, the curved surface which is concave inwards is arranged, so that the contact area between the upper puncture part of the curved surface puncture needle and the fabric is reduced, the friction is reduced, the generation of harmful heat and static electricity is reduced, the fatigue strength of the curved surface puncture needle is reduced, and the service life of the curved surface puncture needle is prolonged. Meanwhile, the curved surface felting needle also obviously reduces the friction damage to the fabric in the operation, so that the fabric tends to be smoother and the curved surface felting needle is not easy to break.
Description
Technical Field
The invention relates to the technical field of non-woven fabric equipment, in particular to a curved surface felting needle and a manufacturing method thereof.
Background
In the non-woven fabric produced by the needle punching method, the fluffy fiber web is reinforced and cohered by the puncture needle of the needle punching machine, and the non-woven material with certain strength can be obtained. The basic principle is as follows: the fiber net is repeatedly punctured by the puncturing needles with the puncturing edges and the hook bodies, and when the hook bodies penetrate through the fiber net, the surface and local inner layer fibers of the fiber net are forcedly punctured into the interior of the fiber net. The original lofty web is compressed due to the friction between the fibers. When the needle exits the fiber web, the penetrated fiber bundles are separated from the hook body and are left in the fiber web; in this way, the plurality of fiber bundles entangle the web so that it cannot recover the original fluffy condition again. After repeated needling, a considerable number of fiber bundles are penetrated into the web and entangle the fibers with each other in the web to form a nonwoven material having a certain thickness and a certain strength.
Among them, needles are the most important part of nonwoven needling machines, the quality of which has a direct influence on the performance and quality of the needling process. In the production of the needle-punched non-woven fabric, a large number of needle needles are used, and the needle consumption of each needle-punched thread is between 2 and 30 thousand (the number of needle-punching machines in each thread is different); in maintenance, the puncture needles are replaced for a few hours or a few days in a few days and for a plurality of months in a most part; the quantity of the felting needles is large, and the price of each felting needle is between a few minutes and 1 yuan according to the different quality of each felting needle, so the production cost is high. Taking a domestic needle machine of a certain brand as an example, the breadth of the high-speed opposite-needling needle machine is 2.2m, the needling density is 3500s/m-6000s/m, and the needle consumption of a single device is 1 ten thousand-1.3 ten thousand felting needles. The felting needles rub the fabric in the rapid and repeated puncturing operation, and generate more heat, so that the felting needles are fatigued and have shorter service life.
The improvement of the structure of the felting needle not only affects the use cost of the felting needle and the production efficiency of the needling machine; determining the processing quality of the textile; therefore, the felting needles directly affect the economic benefit of the textile industry, and the technology of the felting needles is particularly important.
Disclosure of Invention
The invention aims to provide a curved surface pricking pin and a manufacturing method thereof, so as to solve the technical problem that the pricking pin generates more heat and is easy to fatigue in the prior art.
In order to achieve the above object, according to one aspect of the present invention, there is provided a curved lancet comprising a puncturing part; the puncturing part is provided with a plurality of puncturing edges, and a concave curved surface is formed between every two adjacent puncturing edges.
According to the curved surface puncture needle, the first end of the puncture part is formed with a needle point, and the second end of the puncture part is connected with the needle handle.
According to the curved surface pricking pin, the same pricking edge is provided with a plurality of barbs, protruding barbs are formed at the joint of the barbs and the pricking edge, and the barbs are arranged at the positions far away from the pin tips.
According to the curved surface pricking pin, the pricking edges are three which are uniformly distributed at intervals; barbs on the adjacent puncture ridges are arranged in a staggered manner; the curved surface is an arc surface.
According to the curved surface puncture needle, a structural line segment is connected between two adjacent puncture edges on the cross section of the puncture part, and the area of a region surrounded by the structural line segment and the puncture edges is set as B; the area of a region surrounded by a recess at one position on the cross section and a construction line segment corresponding to the recess is set as A; the ratio of A to B is 6-15%.
According to the curved surface pricker of the invention, the ratio of A to B is preferably 11.9%.
According to the curved-surface puncture needle, the first end of the puncture part is provided with a crown-shaped needle point; the curved lancet is formed as a crown lancet.
According to the curved surface puncture needle, the puncture part is twisted into a spiral shape, and the spiral angle is 60-70 degrees; the curved spike is formed as a curved spiral spike.
According to the curved lancet of the present invention, the spiral angle is preferably 65-68 degrees.
According to another aspect of the present invention, there is provided a method of manufacturing a curved lancet for use in any one of the above disclosures, the method comprising: and punching the columnar blank, and pressing and forming the piercing arris and simultaneously forming the adjacent curved surfaces.
The invention has the beneficial effects that:
by applying the technical scheme of the invention, the curved surface which is concave inwards is arranged, so that the contact area between the upper puncture part of the curved surface puncture needle and the fabric is reduced, the friction is reduced, the generation of harmful heat and static electricity is reduced, the fatigue strength of the curved surface puncture needle is reduced, and the service life of the curved surface puncture needle is prolonged. Meanwhile, the curved surface felting needle also obviously reduces the friction damage to the fabric in the operation, so that the fabric tends to be smoother and the curved surface felting needle is not easy to break.
Drawings
FIG. 1 is a schematic diagram of the construction of a preferred embodiment of the curved lancet of the present invention;
FIG. 2 is a partial schematic view of section A of FIG. 1;
FIG. 3 is a partial schematic view (side view) of section B of FIG. 2;
FIG. 4 is a schematic view of the structure of the puncturing part in FIG. 1;
FIG. 5 is a schematic view of the area B in the cross section of the puncturing part in FIG. 1;
FIG. 6 is a schematic view of region A in the cross-section of the puncturing part in FIG. 1;
FIG. 7 is a schematic structural view of a preferred embodiment of the curved spiral spike of the present invention;
reference numerals:
the puncture needle comprises a needle point 1, a barb 2, a puncture part 3, a needle waist 4, a needle handle 5, a bent handle 6, a hook groove 7, a hook thorn 8, a puncture edge 9 and a curved surface 10.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to the attached drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Example one
Referring to fig. 1-6, the present invention provides a curved surface pricking pin, which comprises a pricking part 3; the puncturing part 3 has a plurality of puncturing edges 9, and a concave curved surface 10 is formed between two adjacent puncturing edges 9.
The puncturing part 3 is also called a needle blade, and the puncturing part 3 is a main working part of the curved needle. The first end of the puncture part 3 is formed with a needle point 1, and the second end of the puncture part 3 is connected with a needle handle 5. Further, a bent handle 6 is connected to the needle handle 5, a needle waist 4 is connected between the needle handle 5 and the puncturing part 3, and the needle waist 4 is an intermediate section or a transition section. The puncture part 3, the needle waist 4, the needle shaft 5, and the bent shaft 6 are generally formed in one piece.
The same puncture arris 9 is provided with a plurality of barbs 2, each barb 2 comprises a hook groove 7 and a barb 8, each barb 8 is formed at the joint of the corresponding barb 2 and the corresponding puncture arris 9, each barb 8 is protruded, and each barb 8 is arranged at a position far away from the needle point 1.
When the barb type fiber net is in operation, the curved surface pricking pins repeatedly prick the fiber net, and when the barb type 2 penetrates through the fiber net, the fiber net surface and local inner layer fibers are forcedly pricked into the fiber net. The barb 2 on the puncture edge 9 is combined with the curved surface 10 which is concave inwards, so that more fibers can be hooked and taken in, the working efficiency of the puncture needle is improved, and good economic benefit can be achieved.
The number of the puncture edges 9 is three, and the puncture edges are uniformly distributed at intervals; the barbs 2 on the adjacent puncture ridges 9 are arranged in a staggered manner; the curved surface 10 is an arc surface.
At this time, the cross section of the puncturing part 3 is formed in an approximately triangular shape inwardly depressed in an arc shape. By adopting the shape, the contact area between the puncture part 3 and the fabric is reduced, so that the friction area between the puncture part 3 and the fabric is reduced, heat and static electricity harmful to the fiber are not easily generated, the fatigue of the curved surface puncture needle is greatly reduced, and the service life of the curved surface puncture needle is greatly prolonged. Meanwhile, the friction damage to the fabric is reduced.
The hook groove 7 can adopt a smooth transition surface, and the hook thorn 8 can also be processed into a circular arc angle. The barb 2 structure can reduce the sliding resistance of the fiber at the barb 2 during the puncturing process; the fabric tends to be more flat, and the puncture part 3 is not easy to break; meanwhile, the whole structure is integrated, so that the puncture part 3 can be prevented from falling off.
A structural line segment is connected between two adjacent puncture ridges 9 on the cross section of the puncture part 3, and the area of a region enclosed by the structural line segment and the puncture ridges 9 is set as B; the area of a region (when the curved surface 10 is an arc surface, the arc region) surrounded by a recess at one position on the cross section and a construction line segment corresponding to the recess is set as A; the ratio of A to B is 6-15%.
The ratio of A to B is preferably 11.9%.
The construction segments are virtual and are specifically presented only to illustrate the area in which A, B is located. This line segment is not a part of the cross section of the puncturing part 3. Wherein the area ratio of A to B depends on the distance of the most concave point of the arch area from the center of the curved surface pricker. The area ratio is larger if the distance is shorter, and smaller if the distance is shorter.
However, when the area ratio is larger, the heat dissipation effect of the curved surface pricking pin is obviously improved, but the structural strength of the curved surface pricking pin is reduced, and as the area ratio is continuously increased, even the strength is reduced to directly influence the service life of the curved surface pricking pin; otherwise, the heat dissipation effect is reduced, the structural strength is enhanced, and along with the continuous reduction of the area ratio, the heat dissipation effect is even reduced to directly influence the service life of the curved surface felting needle, and under the condition of poor heat dissipation effect, the production quality of the fabric can be influenced by harmful heat. The preferred area ratio is 6-15%, preferably 11.9%, depending on the material required for the production of the curved needles. Within the range, the felting needle has the best heat dissipation and structural strength balance, the original service life of the felting needle can be effectively prolonged by 20-30%, the replacement frequency of the curved felting needle is reduced, the production efficiency of the non-woven fabric is improved, and the influence of heat on the production quality is also avoided.
Example two
The invention provides a coronary lancet which is formed by the curved lancet in the first embodiment. The first end of the puncture part is provided with a crown-shaped needle point.
EXAMPLE III
Referring to fig. 1-7, the present invention provides a curved spiral lancet formed from a curved lancet of one embodiment. The puncture part 3 is twisted into a spiral shape; the spiral angle is 60-70 degrees.
The helix angle is preferably 65 to 68 degrees.
The needle point 1 and the puncture edge 9 keep smooth transition, and the edge can smoothly penetrate into the fabric.
Example four
The invention provides a manufacturing method of a curved surface puncture needle, which is applied to a curved surface puncture needle, a crown puncture needle and a curved surface spiral puncture needle which are sequentially disclosed in the first embodiment to the third embodiment; the manufacturing method comprises the following steps: the columnar blank is punched, and the piercing arris 9 is formed by pressing and simultaneously the adjacent curved surfaces 10 are formed.
Taking a curved surface puncture needle with three puncture edges 9 as an example, the manufacturing process of the curved surface puncture needle comprises the following steps: cold forging, sharpening, pressing triangle, punching, heat treatment and packaging. Wherein, the curved surface 10 is once-through formed in the process of pressing the triangle, and the specific processing process is as follows: and placing the sharpened columnar blank on a punching machine, and simultaneously forming the curved surface 10 on the adjacent surfaces in the process of pressing into a triangle.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A curved surface puncture needle comprises a puncture part; the puncture part is characterized by comprising a plurality of puncture edges, and a concave curved surface is formed between every two adjacent puncture edges.
2. The curved lancet of claim 1, wherein the first end of the lancing portion is formed with a needle tip and the second end of the lancing portion is attached to a needle handle.
3. The curved surface puncture needle according to claim 2, wherein a plurality of barbs are provided on the same puncture ridge, a protruding barb is formed at the joint of the barb and the puncture ridge, and the barb is arranged away from the needle tip.
4. The curved lancet of claim 3, wherein said lancing ridges are provided as three evenly spaced apart strips; barbs on the adjacent puncture ridges are arranged in a staggered manner; the curved surface is an arc surface.
5. The curved surface puncture needle according to claim 1, wherein a structural line segment is connected between two adjacent puncture ridges on the cross section of the puncture part, and the area of a region surrounded by the structural line segment and the puncture ridges is set as B; the area of a region surrounded by a recess at one position on the cross section and a construction line segment corresponding to the recess is set as A; the ratio of A to B is 6-15%.
6. The curved lancet of claim 5, wherein the ratio of A to B is preferably 11.9%.
7. The curved lancet of any one of claims 1 and 3-6, wherein the first end of the piercing portion has a crown-shaped tip; the curved lancet is formed as a crown lancet.
8. The curved lancet of any one of claims 1 to 6, wherein the lancet portion is twisted in a spiral with a helix angle of 60 to 70 degrees; the curved spike is formed as a curved spiral spike.
9. The curved lancet of claim 8, wherein the spiral angle is preferably 65-68 degrees.
10. A method of manufacturing a curved lancet for use in any one of claims 1 to 9, the method comprising: and punching the columnar blank, and pressing and forming the piercing arris and simultaneously forming the adjacent curved surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010443756.9A CN112030373A (en) | 2020-05-22 | 2020-05-22 | Curved surface pricking pin and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010443756.9A CN112030373A (en) | 2020-05-22 | 2020-05-22 | Curved surface pricking pin and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112030373A true CN112030373A (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010443756.9A Pending CN112030373A (en) | 2020-05-22 | 2020-05-22 | Curved surface pricking pin and manufacturing method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201512668U (en) * | 2009-09-03 | 2010-06-23 | 台州宇星制针有限公司 | Trilobular anti-rapture non-woven pricking pin |
| EP2218812A1 (en) * | 2009-02-12 | 2010-08-18 | Groz-Beckert KG | Needle for a textile machine |
| CN102304822A (en) * | 2011-08-22 | 2012-01-04 | 青岛锦钻针业有限公司 | Rifle-shaped felting needle |
| CN202380235U (en) * | 2011-12-24 | 2012-08-15 | 陈忠响 | Novel pricking needle of needle machine |
| CN203007596U (en) * | 2013-01-21 | 2013-06-19 | 沈阳市卡特尔非织造布有限公司 | Carbon fiber cloth acupuncture needle |
| CN104846557A (en) * | 2015-05-11 | 2015-08-19 | 上海丰威织针制造有限公司 | Triangular-cross-section felting needle provided with spiral needle blades |
| CN204849273U (en) * | 2015-07-21 | 2015-12-09 | 台州市幼龙制针有限公司 | Protruding type arc tooth nonwoven needle with spiral crochet hook body |
| CN212834400U (en) * | 2020-05-22 | 2021-03-30 | 上海丰威织针制造有限公司 | Curved surface felting needle |
-
2020
- 2020-05-22 CN CN202010443756.9A patent/CN112030373A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2218812A1 (en) * | 2009-02-12 | 2010-08-18 | Groz-Beckert KG | Needle for a textile machine |
| CN201512668U (en) * | 2009-09-03 | 2010-06-23 | 台州宇星制针有限公司 | Trilobular anti-rapture non-woven pricking pin |
| CN102304822A (en) * | 2011-08-22 | 2012-01-04 | 青岛锦钻针业有限公司 | Rifle-shaped felting needle |
| CN202380235U (en) * | 2011-12-24 | 2012-08-15 | 陈忠响 | Novel pricking needle of needle machine |
| CN203007596U (en) * | 2013-01-21 | 2013-06-19 | 沈阳市卡特尔非织造布有限公司 | Carbon fiber cloth acupuncture needle |
| CN104846557A (en) * | 2015-05-11 | 2015-08-19 | 上海丰威织针制造有限公司 | Triangular-cross-section felting needle provided with spiral needle blades |
| CN204849273U (en) * | 2015-07-21 | 2015-12-09 | 台州市幼龙制针有限公司 | Protruding type arc tooth nonwoven needle with spiral crochet hook body |
| CN212834400U (en) * | 2020-05-22 | 2021-03-30 | 上海丰威织针制造有限公司 | Curved surface felting needle |
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