CN114318647B - Method for manufacturing exchange plating yarn feeding device and anti-loose weft knitting exchange plating jacquard fabric - Google Patents
Method for manufacturing exchange plating yarn feeding device and anti-loose weft knitting exchange plating jacquard fabric Download PDFInfo
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- CN114318647B CN114318647B CN202111460706.2A CN202111460706A CN114318647B CN 114318647 B CN114318647 B CN 114318647B CN 202111460706 A CN202111460706 A CN 202111460706A CN 114318647 B CN114318647 B CN 114318647B
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Abstract
The invention relates to an exchange plating yarn feeding device of a weft knitting circular knitting machine looping system, which comprises three air valves, a reset spring and yarn guiding fingers; the air valve and the reset spring are mutually matched to determine the in-out of the yarn guide finger, so that the distance between the yarn guide hole at the front end of the yarn guide finger and the knitting needle is changed, and the size of the yarn filling transverse angle alpha is changed. The invention also discloses a manufacturing method of the anti-drop loose weft-knitted exchange plating jacquard fabric. The invention adopts weft plain as basic structure, adds an exchange plating yarn feeding device in the original weft knitting four-needle-way single-sided large circular knitting machine looping system, three yarns are simultaneously fed into the looping system, and the exchange plating is carried out by controlling the size of the three yarn-guiding finger-pad transverse angles by a control system, so as to realize the preparation of the anti-drop loose weft knitting exchange plating jacquard fabric. The invention overcomes the defect that the existing exchange plating fabric has no elasticity and is easy to break off, and can perfectly solve the phenomena of yarn break, yarn drawing and hemming caused by scraping, cutting or repeated stretching of common spandex.
Description
Technical Field
The invention relates to the technical field of knitted fabric production, in particular to a method for manufacturing a knitted weft-knitted anti-loose exchange plating jacquard fabric and an exchange plating yarn feeding device used by the method.
Background
The weft knitting material is soft, has larger extensibility and elasticity, and has wide application in the production fields of underwear, tights, sportswear and the like. However, the glass has some defects, the dimensional stability is poor, and the phenomena of loosening and curling are easy to occur. The prior art is not capable of effectively solving the problem.
The weft knitting plating stitch has two main categories of full-loop plating and partial-loop plating, and the patent of the invention aims at the full-loop plating stitch. The yarn plating structure of all the loops is characterized in that all the loops in the fabric are formed by overlapping two loops, one surface of the fabric is exposed by one yarn, and the other surface is exposed by the other yarn.
The traditional weft-knitted exchange plating stitch is knitted on a weft-knitted four-needle-channel single-sided circular knitting machine, all loops are formed by two yarns, the face yarn is sometimes positioned above the ground yarn and sometimes below the ground yarn, and the multi-shaped plain plating stitch is formed, so that the clothing performance of the fabric is improved to a certain extent, but the pattern is single, the pattern is obtained by printing and other working procedures in the post finishing process, the production cost is increased, and the fabric has no elasticity and is easy to shed.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art and provides a novel exchange plating yarn feeding device which can realize the production of weft-knitted single-side exchange plating jacquard fabric on a weft-knitted four-needle-channel single-side circular knitting machine and overcome the defects and shortcomings of simple pattern structure, small change and limited design of the existing single-side jacquard fabric.
The invention aims to provide a loop forming system of a weft knitting four-needle-way single-sided large circular knitting machine by using the exchange plating yarn feeding device.
The invention aims to provide a manufacturing method of the anti-drop loose weft-knitted exchange plating jacquard fabric by using the exchange plating yarn feeding device and a loop forming system of a weft-knitted four-needle-channel single-sided large circular knitting machine.
The technical problems to be solved by the invention are realized by the following technical proposal. The invention relates to an exchange plating yarn feeding device of a weft knitting circular knitting machine looping system, which is characterized in that: the yarn-guiding device comprises three air valves and yarn-guiding finger brackets, wherein the right ends of the three reset springs are respectively fixed at the front ends of the three yarn-guiding fingers, the left ends of the three reset springs are respectively fixed at the right ends of the yarn-guiding finger brackets, the three yarn-guiding fingers are respectively inserted into the yarn-guiding finger brackets, and the air valves and the reset springs are mutually matched to determine the entering and exiting of the yarn-guiding fingers, so that the distance between a yarn-guiding hole at the front end of the yarn-guiding finger and a knitting needle is changed, and the size of a yarn-padding transverse angle alpha is changed; the base of the exchange plating yarn feeding device is fixed on the table surface of the machine sinker bed, and the anti-reverse-poking baffle plate of the needle tongue is fixed on the base of the special exchange plating device.
The invention relates to an exchange plating yarn feeding device, which has the further preferable technical scheme that: the corresponding yarn guiding holes of the three yarn guiding fingers are respectively penetrated with a color yarn A, a color yarn B and a low-temperature thermal bonding spandex C; when one of the air valves is closed, the yarn guiding finger at the corresponding position is far away from the knitting needle, and the low-temperature thermal bonding spandex C penetrated in the corresponding yarn guiding hole is padded into the knitting needle to form ground yarn, so that the ground yarn is fixed; at this time, the other two air valves are opened to push the yarn guiding fingers at the corresponding positions to move towards the inner side of the needle cylinder along the radial direction, so that the reset spring is tensioned, the yarn guiding fingers are close to the knitting needles, and the color yarn A and the color yarn B in the corresponding yarn guiding holes are padded into the knitting needles to form the face yarn 1 and the face yarn 2 respectively.
The invention relates to an exchange plating yarn feeding device, which has the further preferable technical scheme that: when pattern data design pattern diagram, ground yarn is low temperature thermal bonding spandex C, face yarn is changed at will in colored yarn A and B according to pattern requirement, and different colored yarn coverage areas in exchange plating tissue are distinguished by using different color blocks.
The invention relates to an exchange plating yarn feeding device, which has the further preferable technical scheme that: the air valve is controlled to open and close according to the pattern data file, so that the yarn-laying transverse angle alpha of the variable-color yarn is changed A And alpha B And alpha C The yarn A is used as the face yarn 1, the yarn B is used as the face yarn 2, the corresponding air valve is opened, the low-temperature thermal bonding spandex C is used as the ground yarn, and the corresponding air valve is closed; and on the contrary, the yarn B is used as the surface yarn 1, the yarn A is used as the surface yarn 2, the corresponding air valve is opened, the low-temperature thermal bonding spandex C is used as the ground yarn, and the corresponding air valve is closed, so that the yarn exchanging and plating operation is realized.
The invention also discloses a loop forming system of the weft knitting four-needle-way single-sided large circular knitting machine, which is characterized in that: the looping system comprises the exchange plating yarn feeding device according to any one of the technical schemes, and further comprises a control system; the control system comprises an encoder connected with the main shaft, after a knitting needle synchronizing signal is obtained, the encoder sends a signal to the main controller for processing, the main controller outputs a control signal corresponding to the selection or non-selection of the air valve according to pattern file data, the control signal is transmitted to the driving circuit, and the driving circuit drives the special device for exchanging plating to execute jacquard information.
The invention also discloses a manufacturing method of the anti-drop loose weft-knitted exchange plating jacquard fabric, which is characterized by comprising the following specific steps:
(1) Yarn threading configuration: each looping system is fed with A, B two colored yarns and A, B, C low-temperature bonding spandex C, wherein the yarns have different yarn-laying transverse angles, the low-temperature bonding spandex C is used as ground yarn, the colored yarn A is used as surface yarn 1, and the colored yarn B is used as surface yarn 2 to cover the ground yarn C; when the plating jacquard is required to be exchanged, the control system controls the yarn guiding fingers according to the design of the patterns to change the yarn padding transverse angles of the yarn with the color A and the yarn with the color B to change the yarn with the color B into the face yarn 1 and the yarn with the color A into the face yarn 2 to cover the ground yarn C;
(2) Flower type data: in the design software of the exchange plating jacquard fabric, according to the required design pattern data information, the A color yarn is used as the surface yarn 1 to cover the ground yarn C area, and the B color yarn is used as the surface yarn 1 to cover the ground yarn C area; converting the pattern data information into an upper machine file capable of controlling yarn guiding fingers to work so as to control the covering relation of colored yarns in the actual weaving process;
(3) Weaving by an upper machine: the method comprises the steps of importing an upper machine file into a control system of a machine, controlling a yarn guiding finger to move along the radial direction of a needle cylinder according to upper machine file information by an exchange plating yarn feeding device, changing the yarn filling transverse angle of the yarn guiding finger so as to achieve the aim of exchange plating, and knitting the designed jacquard fabric;
(4) And (3) post-finishing: and (5) after the fabric is taken off, the warp post-finishing procedure is carried out, and the anti-loose weft-knitted exchange plating jacquard finished fabric is obtained.
The principle of the invention is that weft plain is adopted as basic structure, knitting needles are determined by means of triangular needle selection, transformation is carried out on the basis of an original weft knitting four-needle single-sided large circular knitting machine, each looping system is additionally provided with an exchange plating yarn feeding device, an existing exchange plating device with two yarn guiding fingers is additionally provided with a spandex yarn guiding finger, spandex yarn is penetrated into the exchange plating device to serve as ground yarn, the yarn guiding device is fixed, the other two yarn guiding fingers respectively penetrate through two colored yarns to serve as face yarn 1 and face yarn 2, three yarns are simultaneously fed into the looping system, and the size of the transverse angle of the yarn padding of the three yarn guiding fingers is controlled by a control system to carry out exchange plating so as to realize the preparation of the anti-drop loose weft knitting exchange plating jacquard fabric.
Compared with the prior art, the invention has the following beneficial effects:
1. compared with the existing exchange plating yarn feeding device with two yarn guiding fingers, the exchange plating yarn feeding device provided by the invention is additionally provided with one low-temperature thermal bonding spandex yarn guiding finger, can be added with low-temperature thermal bonding spandex with excellent thermal stability and elasticity, and overcomes the defects of easy curling and yarn stripping of common spandex after scratching, cutting and the like; solves the defect that the original exchange plating fabric has no elasticity.
2. According to the invention, the exchange plating yarn feeding device and the control system are additionally arranged on each looping system of the weft-knitted four-needle-way single-sided circular knitting machine, the control system controls the yarn guiding fingers to move along the radial direction of the needle cylinder according to the pattern data information provided by jacquard design software, and weft-knitted single-sided exchange plating jacquard fabric is produced on the weft-knitted four-needle-way single-sided circular knitting machine, so that the defects and defects of simple pattern structure, small change and limited design of the existing single-sided jacquard fabric are overcome. The low-temperature bonding spandex is used as ground yarn in the knitting process, and the spandex is fixed; the two colored yarns are respectively used as the face yarn 1 and the face yarn 2 (the face yarn 1 is covered above the face yarn 2) according to the pattern requirements, the relative positions of the two colored yarns on the front surface and the back surface of the fabric can be exchanged according to the pattern requirements, the prepared single-sided jacquard fabric has the advantages of unlimited pattern size, uniform and stable structure, simple post finishing process and reduced production cost.
3. The invention can prepare the fabric on the weft-knitted four-needle-track single-sided circular knitting machine, does not need special equipment, can produce the anti-drop loose weft-knitted exchange plating jacquard fabric by only carrying out relevant modification on the existing equipment, and has simple modification process and low cost. The pattern can be freely designed according to the pattern requirement, the formation is realized by the mutual exchange of yarns instead of needle selection, and the defect that the size of the jacquard pattern produced on a computer jacquard single-sided circular knitting machine is limited is overcome.
4. According to the method, the low-temperature thermal bonding spandex is added as the ground yarn, so that the fabric has more excellent elasticity and thermal stability, the structure of the fabric is uniform and stable, the fabric can be cut randomly in the sewing process, overlock is not required, and the defect that the sewing folded edge is too thick is greatly reduced; the prepared fabric has excellent anti-loose property, random cutting and non-curling properties. In the post-treatment process, only simple water washing shaping is needed, so that the production efficiency is improved, the post-treatment process procedures are reduced, the production cost is reduced, and the pollution to the environment is reduced. The defect that the existing exchange plating fabric is not elastic and easy to break off is overcome, and the phenomena of yarn break, yarn drawing and hemming caused by scraping, cutting or repeated stretching of common spandex can be perfectly solved.
Drawings
FIG. 1 is a schematic diagram of the relationship between the positions of plating and threading of exchange plating;
FIG. 2 is a schematic front view of an exchange plating feed device;
FIG. 3 is a schematic top view of the exchange plating feed device;
FIG. 4 is a schematic diagram of an exchange plating loop;
fig. 5 is a control system and control flow chart of the exchange plating feed device.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments accompanied with figures are described in detail below. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents are intended to fall within the scope of the claims appended hereto.
Fig. 1 is a schematic diagram showing the relationship between the yarn passing positions of the exchange plating yarns, wherein each looping system is fed with A, B, C three-color yarns, A, B, C-color yarns have different yarn-laying transverse angles, color yarn C is low-temperature thermal bonding spandex, the yarn is fixed as a ground yarn, and color yarn a is covered on the yarn C as a face yarn 1. When a plating jacquard is required to be exchanged, the control system controls the yarn guiding fingers according to the pattern file to change the yarn-laying transverse angle of the A, B yarn so that the colored yarn B becomes the face yarn 1 to be covered on the ground yarn C.
Fig. 2 and 3 are a front view and a plan view of a schematic diagram of an exchange plating feed device, respectively, fig. 4 is a schematic diagram of an exchange plating loop, and a black thick loop region represents that a yarn is a face yarn 1, a yarn is a face yarn 2 and covers a ground yarn C region, and a black loop region represents that a yarn is a face yarn 1, and a yarn is a face yarn 2 and covers a ground yarn C region. Fig. 5 is a control system and control flow diagram of the exchange plating feed device.
The exchange plating yarn feeding device comprises three air valves 1, 1'', a yarn guiding finger support 2 and three air valvesThe right ends of the return springs 3, 3' are respectively fixed at the front ends of three yarn guiding fingers 4, 4', the left ends of the three return springs 3, 3' are respectively fixed at the right ends of the yarn guiding finger support 2, the three yarn guiding fingers 4, 4' are respectively inserted into the yarn guiding finger support 2, the air valves 1, 1' and the return springs 3, 3' are mutually matched to determine the in and out of the yarn guiding fingers 4, 4', so that the distance between the yarn guiding holes 5, 5' at the front ends of the yarn guiding fingers 4, 4' and the knitting needles 6 is changed, thereby changing the size of the yarn padding transverse angle alpha and the maximum yarn padding transverse angle alpha C The low-temperature thermal bonding spandex in the yarn guide hole of the yarn guide finger is ground yarn, and the transverse angle of the yarn is smallα A （α B ) The yarn on the yarn-guiding finger is plated yarn, namely the face yarn 1. The base 10 of the exchange plating yarn feeding device is fixed on the bed surface 11 of the machine sinker by a screw 9, and the anti-latch reverse-pulling baffle 7 is fixed on the base 10 of the special exchange plating device by a screw 8.
In the exchange plating yarn feeding device: the yarn guide hole 5 is internally provided with the yarn of A color, the yarn guide hole 5' is internally provided with the yarn of B color, and the yarn guide hole 5″ is internally provided with the yarn of C color; when the air valve 1 is opened, the yarn guiding finger 4 is pushed to move towards the inner side of the needle cylinder 12 along the radial direction, so that the reset spring 3 is tensioned, the yarn guiding finger 4 is close to the knitting needle 6, the color yarn A in the yarn guiding hole 5 is padded into the knitting needle 6 to form the face yarn 1, the air valve 1 'is opened, the color yarn B in the yarn guiding hole 5' is padded into the knitting needle 6 to form the face yarn 2, at the moment, the air valve 1'' is closed, and the color yarn C is padded into the knitting needle 11 to form the ground yarn; vice versa, color yarn B as face yarn 1, color yarn a as face yarn 2, and color yarn C as ground yarn form a new tread pattern. The distance between the base 10 of the exchange plating feed device and the guide finger rest 2 determines the adjustment range of the lateral angle α of the plating, and can be set as required.
With respect to the pattern data file, different color blocks can be used to distinguish between different colored yarn coverage areas in the exchange plating tissue when designing the pattern. The air valve is controlled to be opened and closed according to the pattern data file, so that the yarn padding transverse angle alpha of three color yarns is changed A And alpha B And alpha C The air valves corresponding to the yarn A and the yarn B are opened when the yarn A is used as the face yarn, the air valves corresponding to the yarn C is closed when the yarn C is used as the ground yarn, and vice versa,the purpose of exchanging plating is achieved.
The control system of the weft knitting four-needle-channel single-sided circular knitting machine looping system comprises an encoder 14 connected with a main shaft to obtain a knitting needle 6 synchronizing signal, the encoder 14 sends the signal to a main controller 15 for processing, the main controller outputs a control signal corresponding to the opening or closing of an air valve according to pattern file data to generate the control signal, the control signal is transmitted to a driving circuit 16, and the driving circuit 16 drives a special device for exchanging plating to execute jacquard information.
The production method of the weft-knitted single-side exchange plating jacquard fabric comprises the following steps:
first step, yarn threading configuration: as shown in fig. 3, each looping system fed A, B, C with three colored yarns A, B, C having different yarn-laying angles, colored yarn a as position yarn 1 over ground yarn C. When jacquard is needed, the machine computer controls the yarn guiding fingers according to the pattern file to change the yarn laying angle of the yarn B of the A color yarn to change the yarn B into the face yarn 1 to cover the ground yarn C.
Second step, flower type data: in the design software of the exchange plating jacquard fabric, pattern data information is designed according to the requirement, and the area of the ground yarn C is covered by the yarn A serving as the surface yarn 1 and the area of the ground yarn C is covered by the yarn B serving as the surface yarn 1 are distinguished by utilizing different colors. As shown in fig. 4, the black thick-colored region represents the region where the yarn of color a is the face yarn 1, the yarn of color B is the face yarn 2 and the ground yarn C is covered, and the black-colored region represents the region where the yarn of color B is the face yarn 1, and the yarn of color a is the face yarn 2 and the ground yarn C is covered. The pattern data information is converted into an upper machine file capable of controlling yarn guiding fingers to work, so that the covering relation of the colored yarns in the actual weaving process can be controlled.
Thirdly, weaving on a machine: the method is characterized in that an upper machine file is imported into a control system of a machine, a yarn guiding finger is controlled to move along the radial direction of a needle cylinder by an exchange plating yarn feeding device according to the upper machine file information, so that the purpose of exchange plating is achieved by changing the yarn filling transverse angle of the yarn guiding finger, and the designed anti-loose weft knitting exchange plating jacquard fabric is knitted.
And fourthly, washing and shaping the fabric after the machine is put down, and the like, so as to obtain the anti-loose exchange plating jacquard finished fabric.
Claims (3)
1. An exchange plating yarn feeding device of a weft knitting circular knitting machine looping system is characterized in that: the yarn-guiding device comprises three air valves and yarn-guiding finger brackets, wherein the right ends of the three reset springs are respectively fixed at the front ends of the three yarn-guiding fingers, the left ends of the three reset springs are respectively fixed at the right ends of the yarn-guiding finger brackets, the three yarn-guiding fingers are respectively inserted into the yarn-guiding finger brackets, and the air valves and the reset springs are mutually matched to determine the entering and exiting of the yarn-guiding fingers, so that the distance between a yarn-guiding hole at the front end of the yarn-guiding finger and a knitting needle is changed, and the size of a yarn-padding transverse angle alpha is changed; the base of the exchange plating yarn feeding device is fixed on the table surface of the machine sinker bed, and the anti-reverse-poking baffle plate of the needle tongue is fixed on the base of the special exchange plating device; the corresponding yarn guiding holes of the three yarn guiding fingers are respectively penetrated with a color yarn A, a color yarn B and a low-temperature thermal bonding spandex C; when the pattern data is used for designing a pattern diagram, the ground yarn is low-temperature bonding spandex C, the surface yarn is randomly changed in the colored yarns A and B according to pattern requirements, and different color blocks are utilized to distinguish different color yarn coverage areas in the exchange plating tissue; controlling the opening and closing of the air valve according to the pattern data file, so as to change the yarn padding transverse angles alpha A, alpha B and alpha C of the three colored yarns; the yarn A is used as the face yarn 1, the yarn B is used as the face yarn 2, the corresponding air valve is opened, the low-temperature thermal bonding spandex C is used as the ground yarn, and the corresponding air valve is closed; and on the contrary, the yarn B is used as the surface yarn 1, the yarn A is used as the surface yarn 2, the corresponding air valve is opened, the low-temperature thermal bonding spandex C is used as the ground yarn, and the corresponding air valve is closed, so that the yarn exchanging and plating operation is realized.
2. A weft knitting four-needle-way single-sided large circular knitting machine looping system is characterized in that: the looping system comprising the exchange plating feed device of claim 1, further comprising a control system; the control system comprises an encoder connected with the main shaft, after a knitting needle synchronizing signal is obtained, the encoder sends a signal to the main controller for processing, the main controller outputs a control signal corresponding to the selection or non-selection of the air valve according to pattern file data, the control signal is transmitted to the driving circuit, and the driving circuit drives the special device for exchanging plating to execute jacquard information.
3. The manufacturing method of the anti-drop loose weft-knitted exchange plating jacquard fabric is characterized by comprising the following specific steps of:
(1) Yarn threading configuration: each looping system is fed with A, B two colored yarns and A, B, C low-temperature bonding spandex C, wherein the yarns have different yarn-laying transverse angles, the low-temperature bonding spandex C is used as ground yarn, the colored yarn A is used as surface yarn 1, and the colored yarn B is used as surface yarn 2 to cover the ground yarn C; when the plating jacquard is required to be exchanged, the control system controls the yarn guiding fingers according to the design of the patterns to change the yarn padding transverse angles of the yarn with the color A and the yarn with the color B to change the yarn with the color B into the face yarn 1 and the yarn with the color A into the face yarn 2 to cover the ground yarn C;
(2) Flower type data: in the design software of the exchange plating jacquard fabric, according to the required design pattern data information, the A color yarn is used as the surface yarn 1 to cover the ground yarn C area, and the B color yarn is used as the surface yarn 1 to cover the ground yarn C area; converting the pattern data information into an upper machine file capable of controlling yarn guiding fingers to work so as to control the covering relation of colored yarns in the actual weaving process;
(3) Weaving by an upper machine: the method comprises the steps of importing an upper machine file into a control system of a machine, controlling a yarn guiding finger to move along the radial direction of a needle cylinder according to upper machine file information by an exchange plating yarn feeding device, changing the yarn filling transverse angle of the yarn guiding finger so as to achieve the aim of exchange plating, and knitting the designed jacquard fabric;
(4) And (3) post-finishing: and (5) after the fabric is taken off, the warp post-finishing procedure is carried out, and the anti-loose weft-knitted exchange plating jacquard finished fabric is obtained.
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB162688A (en) * | 1919-10-08 | 1921-05-12 | Richard Donald Spence | Improvements in and relating to machine knitting |
| GB1441106A (en) * | 1972-09-23 | 1976-06-30 | Bentley Eng Co Ltd | Plating feeders subscribers station identification apparatus |
| KR100336414B1 (en) * | 2000-01-06 | 2002-05-10 | 최형권 | Method of triple knitted fabrics supplying threads to thread guides and it's useing thread guides |
| CN100395391C (en) * | 2006-03-17 | 2008-06-18 | 东华大学 | Large bobbin radius single side weft-knitting three-thread plating feeder |
| TWM373926U (en) * | 2009-08-19 | 2010-02-11 | rong-hao Hong | Yarn nozzle structure capable of knitting double-sided color-changing patterns |
| CN104532458B (en) * | 2014-12-16 | 2017-08-25 | 江南大学 | The production method and yarn feeding device of a kind of weft-knitted one side reverse plating jacquard fabric |
| JP6042475B2 (en) * | 2015-03-20 | 2016-12-14 | 佰龍機械廠股▲ふん▼有限公司 | How the flat knitting machine weaves the yarn exchange plating on one side of the technology |
| CN105483923B (en) * | 2015-12-18 | 2018-08-10 | 江南大学 | A kind of equipment and production method of the arbitrary line transfer interval jacquard fabric of weft knitting |
| JP6807451B2 (en) * | 2017-04-07 | 2021-01-06 | 株式会社島精機製作所 | Plating knitting method with a flat knitting machine |
| CN110438634B (en) * | 2019-07-16 | 2021-03-02 | 东华大学 | High-shape-preserving knitted collar and preparation method thereof |
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