CN112077544A - Manufacturing process of high-grade round machine needle - Google Patents
Manufacturing process of high-grade round machine needle Download PDFInfo
- Publication number
- CN112077544A CN112077544A CN202011039303.6A CN202011039303A CN112077544A CN 112077544 A CN112077544 A CN 112077544A CN 202011039303 A CN202011039303 A CN 202011039303A CN 112077544 A CN112077544 A CN 112077544A
- Authority
- CN
- China
- Prior art keywords
- needle
- knitting
- manufacturing
- manufacturing process
- blank
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
- D04B35/02—Knitting tools or instruments not provided for in group D04B15/00 or D04B27/00
- D04B35/04—Latch needles
Abstract
The invention relates to a manufacturing process of a high-grade circular knitting machine needle, which belongs to the technical field of manufacturing of knitting needles and comprises the following steps of (1) manufacturing a needle blank: (2) ten-link: processing a needle body; (3) quintuplet: assembling the needle body; (4) heat treatment; (5) detecting and correcting a knitting needle; (6) and (3) packaging a finished product, wherein the step (2) comprises the following specific process steps: cutting a rough surface between a curved surface on the surface of a needle blank and a needle point to form a smooth surface, making an irregular needle point into a round shape from an oval shape by using a cold heading method, and milling a round arc at the needle belly of a needle body by using a milling cutter, wherein the step (3) is a quintuplet specific process step: the steel wire for manufacturing the latch is manufactured into a needle latch meeting the requirements through mechanical extrusion, stamping, punching and shape cutting, the needle latch is arranged at the position of a needle belly through an indexing conveying device, and the alloy bars of the extruding shafts at two sides are oppositely extruded so as to solve the technical problems that semi-finished products are easily overstocked and the production efficiency is low in the manufacturing process of knitting needles in the prior art.
Description
Technical Field
The invention relates to a manufacturing process of a high-grade circular knitting machine needle, and belongs to the technical field of manufacturing of knitting needles.
Background
The competition of high-grade circular knitting machine needles is more and more intense, but the quality and the cost are closely related, and along with the increasing price competition, in order to ensure the quality and reduce the cost and improve the production efficiency, manufacturers start to start from the manufacturing process of knitting needles, strive to optimize the original production process flow and reduce the overstock of semi-finished products in a workshop so as to improve the production efficiency.
Disclosure of Invention
The invention provides a manufacturing process of a high-grade circular knitting machine needle aiming at the defects in the prior art, and aims to solve the technical problems that semi-finished products are easily overstocked and the production efficiency is low in the manufacturing process of knitting needles in the prior art.
The technical scheme for solving the technical problems is as follows: a manufacturing process of a high-grade round machine needle comprises the following steps of (1) manufacturing a needle blank: (2) ten-link: processing a needle body; (3) quintuplet: assembling the needle body; (4) heat treatment; (5) detecting and correcting a knitting needle; (6) and (3) packaging a finished product, wherein the step (2) comprises the following specific process steps: cutting a rough surface between a curved surface on the surface of a needle blank and a needle point to form a smooth surface, making an irregular needle point into a round shape from an oval shape by using a cold heading method, and milling a round arc at the needle belly of a needle body by using a milling cutter, wherein the step (3) is a quintuplet specific process step: the steel wire for manufacturing the latch is manufactured into a latch meeting the requirements through mechanical extrusion, stamping, punching and shape cutting, the latch is arranged at the position of a latch belly through an indexing conveying device, two side extruding shaft alloy bars are oppositely extruded to complete positioning and shaft manufacturing, and a front end needle tip is folded into a hook shape by using a hook tool.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the specific process for manufacturing the needle blank in the step (1) comprises the following steps: the punching process includes punching steel belt material with punching die and crank punch to separate the steel belt material into needle shape.
Further, the specific process for manufacturing the needle blank in the step (1) further comprises rolling, wherein the rolling refers to that the lateral bending of the needle blank is mechanically corrected to obtain a straight needle blank.
Further, the specific process for manufacturing the needle blank in the step (1) further comprises back planing, wherein the back planing refers to the step of roughening the blanking opening on the side surface of the needle blank, and the smooth finish of the side surface of the needle blank is improved after the needle blank is processed by a planer.
Further, the specific process of the heat treatment in the step (4) is as follows: the method comprises quenching, quenching needle arrangement, quenching oil throwing and tempering, wherein the quenching uses a mesh belt quenching furnace to quench knitting needles to enable the hardness of the knitting needles to reach HRC66, the quenching needle arrangement is to arrange the knitting needles after quenching according to the consistent stitch state, the quenching oil throwing is to separate the quenching oil from the surface of a needle body by utilizing the centrifugal principle, and the tempering is to temper the knitting needles by using tempering equipment according to the process requirements to enable the hardness of the knitting needles to reach HRC59 and release the stress.
Further, the specific process of the knitting needle detection in the step (5) comprises picking and blocking A-shaped bends, wherein the picking is to pick out a knitting needle with a front bend and a back bend under a cold light source, and the blocking A-shaped bend is to detect the knitting needle with a left bend and a right bend on the inclined plane platform through projection.
Further, the specific process for correcting the knitting needles in the step (5) comprises bending and bending, wherein bending is to manually align the knitting needles with the bending degree, and bending is to manually align the knitting needles with the bending degree.
Furthermore, oil throwing, hand bending and a sand opening are further included between the step (2) and the step (3), the oil throwing is to separate lubricating oil from the surface of the needle body by utilizing a centrifugal principle, the hand bending is to mechanically straighten the knitting needle with curvature by a pressure device after mechanical processing to be smooth, and the sand opening is to wipe off burrs generated by the mechanical processing.
Further, a sand tongue and a back stitch are further included between the step (3) and the step (4), the sand tongue removes processing burrs on the surface of the needle tongue through equipment, and the back stitch is formed by chamfering the end face of the stitch through the equipment.
Further, a tongue supporting, polishing and polishing needle arrangement are further included between the step (4) and the step (5), the tongue supporting is to use a reciprocating motion of a thread to increase the flexibility of the needle tongue of the knitting needle, the polishing is to use abrasive to highly abrade the surface of the knitting needle and remove rough objects on the surface, the polishing is to use fine abrasive to further polish the surface of the knitting needle, the surface roughness is lower than 1.6, and the polishing needle arrangement is to arrange the polished knitting needle according to the consistent state of the needle.
The invention has the beneficial effects that: through optimizing production technology for the transverse connection between each process, improved production efficiency greatly, become the polymerization production chain with the dispersion production chain, reduce the circulation process, reduced the backlog of in-process, reduced the process and piled up, reduced the quantity of accent quick-witted waste needle, reduced the rejection rate, improved the yield of product.
Detailed Description
The principles and features of this invention are described below in conjunction with examples which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
A manufacturing process of a high-grade round machine needle comprises the following steps of (1) manufacturing a needle blank: the method comprises the steps of blanking, rolling and back planing, wherein the blanking is to utilize a stamping die to apply pressure on a crank punching machine to separate a steel strip material to form a needle shape, the rolling refers to the lateral bending of a needle blank to obtain a straight needle blank through mechanical correction, and the back planing refers to the rough part of a blanking opening on the side surface of the needle blank to improve the smoothness of the side surface of the needle blank after the machining of a planer.
(2) Ten-link: the needle body processing comprises the following specific process steps: cutting a rough surface between a curve surface on the surface of the needle blank and the needle point at a high speed of 3500r/min to form a smooth surface, making the irregular needle point into a round shape from an oval shape by using a cold heading method, increasing the tensile strength, and milling a round arc at the needle belly of the needle body by using a milling cutter, thereby reserving a space for installing the needle latch;
(3) the hand bending method comprises the steps of oil throwing, hand bending and sand opening, wherein the oil throwing is to separate lubricating oil from the surface of a needle body by utilizing a centrifugal principle, the hand bending is to mechanically straighten a knitting needle with curvature by a pressure device after mechanical processing to be smooth, and the sand opening is to wipe off burrs generated by the mechanical processing.
(4) Quintuplet: the needle body assembly comprises the following specific process steps: manufacturing a needle tongue meeting the requirement from a steel wire for manufacturing the tongue by mechanical extrusion, stamping, punching and shape cutting, installing the needle tongue at the needle belly position through an indexing conveying device, extruding alloy bars of two side extruding shafts in opposite directions to complete positioning and shaft manufacturing, and folding a front-end needle tip into a hook shape by using a hook tool;
(5) the sand tongue is used for removing processing burrs on the surface of the needle tongue through equipment to achieve the purpose of shape modification, and the inverted stitch is used for chamfering the end face of the stitch.
(6) Heat treatment; the specific process comprises the following steps: the method comprises quenching, quenching needle arrangement, quenching oil throwing and tempering, wherein the quenching uses a mesh belt quenching furnace to carry out high-temperature quenching at 800-820 ℃ on knitting needles to ensure that the hardness of the knitting needles reaches HRC66, the quenching needle arrangement is to arrange the knitting needles after quenching according to the consistent stitch state, the quenching oil throwing is to separate the quenching oil from the surface of a needle body by utilizing the centrifugal principle, the tempering uses tempering equipment to carry out tempering treatment on the knitting needles according to the process requirement to ensure that the hardness of the knitting needles reaches HRC59, and the stress is released;
(7) the method comprises the steps of supporting a tongue, polishing and finishing, wherein the tongue supporting uses a reciprocating motion of a thread to increase the flexibility of a latch of a knitting needle, the polishing uses abrasive to highly abrade the surface of the knitting needle to remove rough objects on the surface, the polishing uses fine abrasive to further polish the surface of the knitting needle, the surface roughness is lower than 1.6, and the finishing of the finished polished knitting needle is finished according to the consistent state of the stitch.
(8) Detecting and correcting a knitting needle; the detection specific process comprises a picking needle and a clamping and picking A-bend, wherein the picking needle is used for picking out a knitting needle with a front bend and a rear bend under a cold light source, and the clamping and picking A-bend is used for detecting the knitting needle with the left bend and the right bend on an inclined platform through projection; the specific correction process comprises bending and bending, wherein bending is to manually straighten the knitting needles with the bending degree, and bending is to manually straighten the knitting needles with the bending degree;
(9) packaging a finished product: and (5) bagging, sealing and packaging the knitting needles according to the packaging process specification.
And (3) analyzing data after process optimization: the original whole set of procedures comprise 33 procedures and are optimized into 23 current procedures, the number of semi-finished products in a workshop is reduced by 40%, the process posts are optimized, the use of the ten-connection and five-connection procedures greatly improves the production efficiency on the process integration, the efficiency is improved by 30%, meanwhile, the yield is improved to 90% from 80% originally, the utilization rate of steel strips is improved due to the reduction of rejection rate, the production cost is saved, the consumption of raw materials is reduced, in addition, 176 pieces of manufacturing equipment are reduced, and the good effects of energy conservation and emission reduction are achieved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A manufacturing process of a high-grade circular knitting machine needle is characterized by comprising the following steps: the method comprises the following steps of (1) needle blank preparation: (2) ten-link: processing a needle body; (3) quintuplet: assembling the needle body; (4) heat treatment; (5) detecting and correcting a knitting needle; (6) and (3) packaging a finished product, wherein the step (2) comprises the following specific process steps: cutting a rough surface between a curved surface on the surface of a needle blank and a needle point to form a smooth surface, making an irregular needle point into a round shape from an oval shape by using a cold heading method, and milling a round arc at the needle belly of a needle body by using a milling cutter, wherein the step (3) is a quintuplet specific process step: the steel wire for manufacturing the latch is manufactured into a latch meeting the requirements through mechanical extrusion, stamping, punching and shape cutting, the latch is arranged at the position of a latch belly through an indexing conveying device, two side extruding shaft alloy bars are oppositely extruded to complete positioning and shaft manufacturing, and a front end needle tip is folded into a hook shape by using a hook tool.
2. The manufacturing process of the high-grade circular knitting machine needle according to claim 1, characterized in that: the specific process for manufacturing the needle blank in the step (1) comprises the following steps: the punching process includes punching steel belt material with punching die and crank punch to separate the steel belt material into needle shape.
3. The manufacturing process of the high-grade circular knitting machine needle according to claim 2, characterized in that: the specific process for manufacturing the needle blank in the step (1) further comprises rolling, wherein the rolling refers to obtaining a straight needle blank by mechanically correcting the lateral bend of the needle blank.
4. The manufacturing process of the high-grade circular knitting machine needle according to claim 3, characterized in that: the specific process for manufacturing the needle blank in the step (1) further comprises back planing, wherein the back planing refers to the step of machining a rough part of a blanking opening on the side surface of the needle blank by a planer to improve the smoothness of the side surface of the needle blank.
5. The manufacturing process of the high-grade circular knitting machine needle according to claim 4, characterized in that: the specific process of the heat treatment in the step (4) is as follows: the method comprises quenching, quenching needle arrangement, quenching oil throwing and tempering, wherein the quenching uses a mesh belt quenching furnace to quench knitting needles to enable the hardness of the knitting needles to reach HRC66, the quenching needle arrangement is to arrange the knitting needles after quenching according to the consistent stitch state, the quenching oil throwing is to separate the quenching oil from the surface of a needle body by utilizing the centrifugal principle, and the tempering is to temper the knitting needles by using tempering equipment according to the process requirements to enable the hardness of the knitting needles to reach HRC59 and release the stress.
6. The manufacturing process of the high-grade circular knitting machine needle according to claim 5, characterized in that: and (5) detecting the knitting needle, wherein the specific process comprises a picking needle and a clamping and picking A-shaped bend, the picking needle picks out the knitting needle with the front bend and the back bend under a cold light source, and the clamping and picking A-shaped bend is the knitting needle with the left bend and the right bend on the inclined platform through projection inspection.
7. The manufacturing process of the high-grade circular knitting machine needle according to claim 6, characterized in that: and (5) the specific process of correcting the knitting needles comprises bending and bending, wherein bending is to manually align the knitting needles with the bending degree, and bending is to manually align the knitting needles with the bending degree.
8. The manufacturing process of the high-grade circular knitting machine needle according to claim 1, characterized in that: and (3) oil throwing, hand bending and a sand opening are further included between the step (2) and the step (3), the oil throwing is to separate lubricating oil from the surface of the needle body by utilizing a centrifugal principle, the hand bending is to mechanically straighten the knitting needle with curvature by a pressure device after mechanical processing to be smooth, and the sand opening is to wipe off burrs generated by the mechanical processing.
9. The manufacturing process of the high-grade circular knitting machine needle according to claim 1, characterized in that: and (4) a sand tongue and a reversed stitch are further included between the step (3) and the step (4), the sand tongue removes processing burrs on the surface of the needle tongue through equipment, and the reversed stitch is formed by chamfering the end face of the stitch through the equipment.
10. The manufacturing process of the high-grade circular knitting machine needle according to claim 8 or 9, characterized in that: and (5) a step of supporting a tongue, polishing and polishing a needle, wherein the tongue is used for increasing the flexibility of the needle tongue of the knitting needle by using reciprocating motion of a thread, the polishing is to highly abrade the surface of the knitting needle by using an abrasive to remove rough objects on the surface, the polishing is to further polish the surface of the knitting needle by using a fine abrasive, the surface roughness is lower than 1.6, and the polishing needle is to finish the polished knitting needle according to the consistent state of the needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011039303.6A CN112077544A (en) | 2020-09-28 | 2020-09-28 | Manufacturing process of high-grade round machine needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011039303.6A CN112077544A (en) | 2020-09-28 | 2020-09-28 | Manufacturing process of high-grade round machine needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112077544A true CN112077544A (en) | 2020-12-15 |
Family
ID=73738491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011039303.6A Pending CN112077544A (en) | 2020-09-28 | 2020-09-28 | Manufacturing process of high-grade round machine needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112077544A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203212788U (en) * | 2013-03-28 | 2013-09-25 | 于勇 | Latch bending preventing machine needle |
| KR101725909B1 (en) * | 2016-01-21 | 2017-04-11 | 김동진 | Manufacture Method of Surgical Needle, and Sugical Needle Prepared thereby |
| CN109837653A (en) * | 2017-11-24 | 2019-06-04 | 蔡宇 | A kind of needle of needleloom and preparation method thereof |
| CN110629392A (en) * | 2019-09-28 | 2019-12-31 | 福建省精新科技制针有限公司 | Circular knitting machine needle and preparation method thereof |
-
2020
- 2020-09-28 CN CN202011039303.6A patent/CN112077544A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203212788U (en) * | 2013-03-28 | 2013-09-25 | 于勇 | Latch bending preventing machine needle |
| KR101725909B1 (en) * | 2016-01-21 | 2017-04-11 | 김동진 | Manufacture Method of Surgical Needle, and Sugical Needle Prepared thereby |
| CN109837653A (en) * | 2017-11-24 | 2019-06-04 | 蔡宇 | A kind of needle of needleloom and preparation method thereof |
| CN110629392A (en) * | 2019-09-28 | 2019-12-31 | 福建省精新科技制针有限公司 | Circular knitting machine needle and preparation method thereof |
Non-Patent Citations (5)
| Title |
|---|
| （美）杨 基（YANKEE，H.W.）: "《机械制造方法 下》", 30 November 1988, 北京：高等教育出版社, pages: 105 * |
| 上海市经济委员会: "《工人岗位规范手册 能力、知识 纺织卷》", 31 August 1990, 上海科学普及出版社, pages: 757 - 772 * |
| 全球纺织网资讯中心: "《百度,https://m.tnc.com.cn/info/c-001001-d-3572884.html》", 24 May 2016 * |
| 曹光兴: "《国外纺织器材》", 31 May 1982, 纺织工业出版社, pages: 347 - 348 * |
| 泰州市姜堰双星制针有限公司: "《微信，http://www.jysxzz.com/news/4_18》", 12 July 2017 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101716715B (en) | Processing method of titanium and titanium alloy wires | |
| CN104259377B (en) | The integrated automatic press moulding process of chain, chain transition carrier bar and chain transition carrier bar | |
| CN107282839A (en) | A kind of forging technology of forging | |
| CN110369669B (en) | Forging process of aviation compressor blade based on stainless steel material | |
| CN104646956A (en) | Process for machining ball cage bell-like shell | |
| CN104589005A (en) | Molding process for straight bevel gear | |
| CN111790769B (en) | Forging process of transmission steering arm | |
| CN102233364B (en) | Martensite air valve steel bar production method | |
| CN105081195B (en) | Chain, sharp-tooth chain plate and chain plate automatic punch forming technology | |
| CN110076272A (en) | A kind of 1215 material forging technologies | |
| CN106270777A (en) | A kind of bands for band manufacture method and bands for band | |
| CN108213868B (en) | Process for machining metal thin-wall part by machining center | |
| CN112077544A (en) | Manufacturing process of high-grade round machine needle | |
| CN114367624A (en) | Automatic multi-station forging production line for sector gear shaft | |
| CN110369970A (en) | A kind of high-strength thinned Bridge guardrail cold-bending molding technology | |
| CN104384877A (en) | Processing process of rear axle circular cone driven gear | |
| CN113894198B (en) | Multi-pass flaring spin forming process for high-temperature alloy cylindrical part | |
| CN110587245B (en) | Production process of belt wheel shaft of washing machine | |
| CN105081196B (en) | Chain, K-type accessory plate and automatic punch forming technology of accessory plate | |
| CN111250939B (en) | Needle turning sheet production process | |
| CN106271425A (en) | A kind of mechanical processing technique of connecting rod | |
| CN211343823U (en) | Support spring | |
| CN111037213A (en) | Forging method for double-nut D-shaped connecting shackle of R6-level mooring chain accessory | |
| CN110193584A (en) | A kind of grass trimmer crank blank forging technique | |
| CN104438532A (en) | Brake fluted disc machining process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201215 |