CN114775154B - Dynamic control system and method for tensile force of full-formed fabric area - Google Patents
Dynamic control system and method for tensile force of full-formed fabric area Download PDFInfo
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- CN114775154B CN114775154B CN202210378759.8A CN202210378759A CN114775154B CN 114775154 B CN114775154 B CN 114775154B CN 202210378759 A CN202210378759 A CN 202210378759A CN 114775154 B CN114775154 B CN 114775154B
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/88—Take-up or draw-off devices for knitting products
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Abstract
The invention belongs to the technical field of knitting, and particularly relates to a system and a method for dynamically controlling the regional tension of a fully-formed fabric. The method comprises the following steps: s1, presetting knitting forms and needle selection areas of all knitting modules; s2, acquiring a knitting needle area on a needle plate corresponding to each knitting module in the machine head translation process; s3, acquiring an overlapping area of each knitting module according to a knitting needle area on a needle plate corresponding to each knitting module and a needle selection area of each knitting module; and S4, dynamically controlling the drawing module to simultaneously output different pulling forces and act on the knitting needles in the overlapped areas according to the knitting forms and the overlapped areas of the knitting modules so as to act on the knitting modules. The invention can simultaneously output different tension to the knitting needles in each overlapped area on the needle plate according to the knitting form of each area of the fully-formed fabric, and simultaneously meet the tension requirement of each area in different knitting forms so as to realize that the areas in different knitting forms can be knitted simultaneously and improve the knitting efficiency.
Description
Technical Field
The invention belongs to the technical field of knitting, and particularly relates to a system and a method for dynamically controlling the regional tension of a fully-formed fabric.
Background
Because of factors such as knitting efficiency and knitting form, the knitting mode of both needle turning and knitting on the same row is common in the full forming process, the needle outlet modes of the needles in the same area in different knitting form areas can be different, the knitting mode and the needle turning exist, the pulling force required by knitting and needle turning is different, the traditional control mode at present works by the force of knitting or the force of needle turning or other modes, and the next knitting form can only be carried out after one knitting form is finished, so that the requirements of different knitting form areas can not be met simultaneously, and the knitting efficiency is greatly reduced.
Currently, some researches for producing pattern fabrics exist, for example, a chinese patent with publication number CN114108171a discloses a production process of mesh pattern fabrics, which adopts full-skived big bright yarns as raw materials, and comprises the following steps: s1, designing: designing the mesh pattern by adopting design software; s2, yarn finishing: the warping machine carries out yarn finishing operation on the fully-polished large bright yarns through a software program, so that the fully-polished large bright yarns form a combined structure; s3, warp knitting: the combined structure formed by the fully-skived large bright yarns is arranged on a working needle of a warp-wise feeding warp knitting machine to form a knitted fabric; s4, forming: and (3) performing a carving operation on the knitted fabric to form the grey cloth with a reticular pattern. The invention can continuously produce and process the reticular flower-shaped cloth, has simple and convenient operation, can continuously and quickly realize the processing operation of the reticular flower-shaped cloth, and can meet the processing quality of the reticular flower-shaped cloth. For example, the chinese patent publication No. CN113914001a discloses a flower pattern processing method for cool fabric, wherein the flower pattern is composed of longitudinal lattices and transverse lattices, each side of the longitudinal lattices is connected with one of the transverse lattices, and each side of the transverse lattices is connected with one of the longitudinal lattices; the longitudinal lattices are woven by half-needle triangles; the transverse lattices are formed by full-needle triangular weaving; the height of the longitudinal grids or the transverse grids is controlled by the cycle number of the triangular basic unit; the width of the longitudinal grids or the transverse grids is controlled by the cycle number of the pin arranging basic unit. By the process, the fabric with good air permeability and high cool feeling can be prepared, the style of the fabric can be adjusted by adjusting the circulation times of the triangle and the needle arrangement, and the market competitiveness can be effectively improved. However, no research has been conducted on how to achieve simultaneous knitting of different knitting form regions.
Therefore, a system for simultaneously outputting different pulling forces to corresponding knitting needle areas on a needle plate according to the knitting forms of all areas of a fully formed fabric is needed, and simultaneously, the pulling force requirements of the areas with different knitting forms are met, so that the areas with different knitting forms can be simultaneously knitted.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a system and a method for dynamically controlling the tension of the regions of a fully-formed fabric, which can simultaneously output different tensions to the corresponding knitting needle regions on a needle plate according to the knitting forms of the regions of the fully-formed fabric, and simultaneously meet the tension requirements of the regions of different knitting forms so as to realize that the regions of different knitting forms can be knitted simultaneously.
The invention adopts the following technical scheme:
a dynamic control system for the tension of a full-molded fabric area comprises a machine head, a needle plate, a drawing module and a control module, wherein the control module comprises a preset unit, a control unit, a knitting needle area acquisition unit and an overlapping area acquisition unit;
the machine head comprises a plurality of knitting modules which are arranged in different areas, the needle plate comprises a plurality of knitting needles which are arranged in parallel, the needle plate is fixed, and the machine head can move horizontally relative to the needle plate;
the knitting needle area acquisition unit is respectively connected with the machine head and the overlapping area acquisition unit, and the control unit is respectively connected with the preset unit, the overlapping area acquisition unit and the drawing module;
the preset unit is used for presetting the knitting form and the needle selection area of each knitting module;
the knitting needle area acquisition unit is used for acquiring the knitting needle area on the needle plate corresponding to each knitting module in the machine head translation process;
an overlapping area obtaining unit, configured to obtain an overlapping area of each knitting module according to a knitting needle area on a needle plate corresponding to each knitting module and a needle selection area of each knitting module;
and the control unit is used for dynamically controlling the drawing module to simultaneously output different pulling forces and act on the knitting needles in the overlapped areas according to the knitting forms and the overlapped areas of the knitting modules so as to act on the knitting modules.
As a preferred scheme, the drawing module comprises a plurality of drawing units, the control unit is respectively connected with the plurality of drawing units, and each drawing unit is respectively connected with a corresponding number of knitting needles on the needle plate through a fabric;
the control unit controls the tension output of each drawing unit to simultaneously output different tensions to the knitting needles in each overlapping area.
Preferably, the control unit is further configured to control the corresponding drawing unit of the needle to resume the initial tension output when the needle leaves the overlap region.
Preferably, the plurality of knitting modules are arranged at intervals in regions.
Preferably, the knitting form includes a stitch-over form and a knitting form.
As a preferred scheme, a plurality of knitting modules are respectively provided with an image recognition unit, and the image recognition units are connected with a knitting needle region acquisition unit;
the image recognition unit is used for carrying out image recognition on the needle plate in the moving process of the machine head so as to obtain a knitting needle image corresponding to the knitting module;
and the knitting needle area acquisition unit is used for acquiring the knitting needle area on the needle plate corresponding to the knitting module according to the knitting needle image.
As a preferred scheme, the machine head comprises a coordinate calculation unit, and the coordinate calculation unit is connected with the knitting needle region acquisition unit;
the coordinate calculation unit is used for calculating the position coordinates of the knitting module in the moving process of the machine head;
and the knitting needle area acquisition unit is used for acquiring the knitting needle area on the needle plate corresponding to the knitting module according to the position coordinates of the knitting module.
The dynamic control method for the tension of the fully-formed fabric area is also provided, and based on the dynamic control system for the tension of the fully-formed fabric area, the dynamic control method comprises the following steps:
s1, presetting knitting forms and needle selection areas of all knitting modules;
s2, acquiring a knitting needle area on a needle plate corresponding to each knitting module in the machine head translation process;
s3, acquiring an overlapping area of each knitting module according to a knitting needle area on a needle plate corresponding to each knitting module and a needle selection area of each knitting module;
and S4, dynamically controlling the drawing module to simultaneously output different pulling forces and act on the knitting needles in the overlapped areas according to the knitting forms and the overlapped areas of the knitting modules so as to act on the knitting modules.
Preferably, after step S4, step S5 is further included:
and S5, when the knitting needle leaves the overlapped area, controlling the pulling module to output the pulling force of the knitting needle to recover to the initial pulling force.
Preferably, in step S2, specifically:
and acquiring a knitting needle area on a needle plate corresponding to the knitting module according to the position coordinates of the knitting module in the moving process of the machine head.
The invention has the beneficial effects that:
the knitting needles in the overlapped areas on the needle plate can be simultaneously output with different tension according to the knitting forms of all the areas of the fully-formed fabric, and meanwhile, the tension requirements of all the different knitting form areas are met, so that the different knitting form areas can be knitted simultaneously, and the knitting efficiency is improved.
Because the quantity of the knitting needles required by different knitting forms is different, the needle selection area is preset for each knitting module, and the knitting needles in the same area range are not adopted for all the knitting modules, so that the adaptability of the system to different knitting forms is improved, and the arrangement also lays a foundation for simultaneously knitting various knitting forms.
In the moving process of the machine head, the pulling force output of the drawing unit is dynamically adjusted, the same knitting needle can successively knit different knitting modules, the utilization rate of the knitting needle is improved, the number of the knitting needles is reduced on the basis of simultaneously knitting different knitting modules, and the knitting cost is reduced.
When the knitting needle leaves the overlapped area, the pulling unit corresponding to the knitting needle is controlled to recover the initial tension output, and the plurality of knitting modules are arranged at intervals in different areas, so that the buffer is provided for dynamically adjusting the tension output of the pulling unit, and the phenomenon that the tension is not adjusted in time is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a system for dynamic control of the tension in a fully formed fabric region according to the present invention;
fig. 2 is a flow chart of a method for dynamically controlling the tension of a fully-formed fabric region according to the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
The first embodiment is as follows:
referring to fig. 1, the embodiment provides a dynamic control system for a tension of a fully-formed fabric region, which includes a machine head, a needle plate, a drawing module, and a control module, where the control module includes a preset unit, a control unit, a knitting needle region acquisition unit, and an overlap region acquisition unit;
the machine head comprises a plurality of knitting modules arranged in different areas, the needle plate comprises a plurality of knitting needles arranged in parallel, the needle plate is fixed and can move horizontally relative to the needle plate;
the knitting needle area acquisition unit is respectively connected with the machine head and the overlapping area acquisition unit, and the control unit is respectively connected with the preset unit, the overlapping area acquisition unit and the drawing module;
the preset unit is used for presetting the knitting form and the needle selection area of each knitting module;
a knitting needle area acquisition unit, which is used for acquiring the knitting needle area on the needle plate corresponding to each knitting module in the head translation process (namely, the knitting needle area falling into the projection area when the knitting module setting area is projected onto the needle plate);
the overlapping area acquisition unit is used for acquiring the overlapping area of each knitting module according to the knitting needle area on the needle plate corresponding to each knitting module and the needle selection area of each knitting module;
and the control unit is used for dynamically controlling the drawing module to simultaneously output different pulling forces and act on the knitting needles in the overlapped areas according to the knitting forms and the overlapped areas of the knitting modules so as to act on the knitting modules.
It can be known that, in this embodiment, the knitting form and the needle selection area of each knitting module are preset, and each knitting module passes through a different knitting needle area on the needle plate during the movement of the machine head from one side of the needle plate to the other side, in the movement, the area acquisition unit acquires the knitting needle area on the needle plate corresponding to each knitting module, further acquires the overlapping area (i.e., the overlapping portion between the knitting needle area and the needle selection area) of each knitting module according to the knitting needle area on the needle plate corresponding to each knitting module and the needle selection area of each knitting module, and finally dynamically controls the drawing module to simultaneously output different tensions and apply to the knitting needles in each overlapping area according to the knitting form and the overlapping area of each knitting module, so as to apply to each knitting module.
The invention can simultaneously output different tension to the knitting needles in each overlapped area on the needle plate according to the knitting form of each area of the fully-formed fabric, and simultaneously meet the tension requirement of each area in different knitting forms so as to realize that the areas in different knitting forms can be knitted simultaneously and improve the knitting efficiency.
Because the quantity of the knitting needles needed by different knitting forms is different, the needle selection area is preset for each knitting module, and not all knitting modules adopt the knitting needles in the same area range, so that the adaptability of the system to different knitting forms is improved, and the setting also lays a foundation for simultaneously knitting various knitting forms (if the preset is not carried out, the knitting needles passed by each knitting module in the machine head moving process are all knitted, and if a certain knitting module finishes knitting, redundant knitting needles knit the knitting module at the moment, so that the damage is caused to the knitting module).
Specifically, the method comprises the following steps:
the drawing module comprises a plurality of drawing units, the control unit is respectively connected with the plurality of drawing units, each drawing unit is respectively connected with a corresponding number of knitting needles on the needle plate through a fabric, the number of the knitting needles can be 1, 2 or 3, and the like, and the drawing module can be specifically set according to actual requirements;
the control unit controls the tension output of each drawing unit to simultaneously output different tensions to the knitting needles in each overlapping area.
And the control unit is also used for controlling the pulling unit corresponding to the knitting needle to recover the initial tension output when the knitting needle leaves the overlapped area.
The plurality of knitting modules are arranged at intervals in regions.
In the moving process of the machine head, the pulling force output of the drawing unit is dynamically adjusted, the same knitting needle can successively knit different knitting modules, the utilization rate of the knitting needle is improved, the number of the knitting needles is reduced on the basis of simultaneously knitting different knitting modules, and the knitting cost is reduced.
When the knitting needle leaves the overlapped area, the pulling unit corresponding to the knitting needle is controlled to recover the initialized tension output, wherein the initialized tension refers to the tension which cannot influence the knitting modules, so that the knitting needle leaving the overlapped area is prevented from continuing knitting, and the plurality of knitting modules are arranged at intervals in different areas, so that the buffer is provided for dynamically adjusting the tension output of the pulling unit.
The control module further comprises a storage unit which is connected with the control unit, the knitting forms comprise a stitch-over form, a knitting form and the like (it should be noted that the knitting forms can also comprise other knitting forms, and the embodiment is only illustrated by way of example), each form has corresponding tension data, and the tension data corresponding to each knitting form can be stored in the storage unit. When the control unit controls the tension, corresponding tension data is extracted according to the knitting form of each knitting module to control.
Furthermore, if considering the production of fabrics with different patterns, the needle-turning tension and the knitting tension corresponding to the fabrics with different patterns will be different, so that the needle-turning tension and the knitting tension corresponding to each pattern can be stored in the storage unit and form a corresponding relationship, for example:
pattern 1: the knitting tension is 400N, and the needle turning tension is-1N;
and (3) pattern 2: the knitting tension is 300N, and the needle turning tension is 100N;
……
and (3) pattern n: the knitting tension is 400N, and the needle turning tension is 10N.
When the production of fabrics with different patterns is considered, the patterns required to be produced by the knitting needs to be preset in the preset unit, and the control unit extracts corresponding tension data according to the types of the patterns and the knitting forms of the knitting modules to perform tension control.
More specifically, for obtaining the knitting needle area on the corresponding needle plate of the knitting module, the embodiment provides two schemes, one is an image recognition method, and the other is a coordinate method.
The image identification method specifically comprises the following steps:
the plurality of knitting modules are provided with image recognition units, and the image recognition units are connected with the knitting needle region acquisition units;
the image recognition unit is used for carrying out image recognition on the needle plate in the moving process of the machine head so as to obtain a knitting needle image corresponding to the knitting module;
and the knitting needle area acquisition unit is used for acquiring the knitting needle area on the needle plate corresponding to the knitting module according to the knitting needle image.
The coordinate method specifically comprises the following steps:
the machine head comprises a coordinate calculation unit which is connected with the knitting needle area acquisition unit;
the coordinate calculation unit is used for calculating the position coordinate of the knitting module in the moving process of the machine head;
and the knitting needle area acquisition unit is used for acquiring the knitting needle area on the needle plate corresponding to the knitting module according to the position coordinates of the knitting module.
Example two:
referring to fig. 2, the present embodiment provides a method for dynamically controlling a tension of a fully-formed fabric region, and a system for dynamically controlling a tension of a fully-formed fabric region according to the first embodiment includes the following steps:
s1, presetting knitting forms and needle selection areas of all knitting modules;
s2, acquiring a knitting needle area on a needle plate corresponding to each knitting module in the machine head translation process;
s3, acquiring an overlapping area of each knitting module according to a knitting needle area on a needle plate corresponding to each knitting module and a needle selection area of each knitting module;
and S4, dynamically controlling the drawing module to simultaneously output different pulling forces and act on the knitting needles in the overlapped areas according to the knitting forms and the overlapped areas of the knitting modules so as to act on the knitting modules.
Specifically, the method comprises the following steps:
after step S4, step S5 is further included:
and S5, when the knitting needle leaves the overlapped area, controlling the pulling module to output the pulling force of the knitting needle to restore to the initial pulling force.
In step S2, specifically:
and acquiring the knitting needle area on the needle plate corresponding to the knitting module according to the position coordinates of the knitting module in the moving process of the machine head.
It should be noted that, similar to the embodiments, the method for dynamically controlling the tension of the fully-formed fabric region provided in the embodiments is not described herein.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope of the present invention.
Claims (10)
1. A dynamic control system for the tension of a fully-formed fabric area is characterized by comprising a machine head, a needle plate, a drawing module and a control module, wherein the control module comprises a preset unit, a control unit, a knitting needle area acquisition unit and an overlapping area acquisition unit;
the machine head comprises a plurality of knitting modules which are arranged in different areas, the needle plate comprises a plurality of knitting needles which are arranged in parallel, the needle plate is fixed, and the machine head can move horizontally relative to the needle plate;
the knitting needle area acquisition unit is respectively connected with the machine head and the overlapping area acquisition unit, and the control unit is respectively connected with the preset unit, the overlapping area acquisition unit and the drawing module;
the preset unit is used for presetting the knitting form and the needle selection area of each knitting module;
the knitting needle area acquisition unit is used for acquiring the knitting needle area on the needle plate corresponding to each knitting module in the machine head translation process;
an overlapping area acquisition unit, configured to acquire an overlapping area of each knitting module according to a knitting needle area on a needle plate corresponding to each knitting module and a needle selection area of each knitting module, where the overlapping area is an overlapping portion of the knitting needle area and the needle selection area;
and the control unit is used for dynamically controlling the drawing module to simultaneously output different pulling forces and act on the knitting needles in the overlapped areas according to the knitting forms and the overlapped areas of the knitting modules so as to act on the knitting modules.
2. The system for dynamically controlling the regional tension of the fully formed fabric according to claim 1, wherein the drawing module comprises a plurality of drawing units, the control units are respectively connected with the plurality of drawing units, and each drawing unit is respectively connected with a corresponding number of knitting needles on the needle plate through the fabric;
the control unit controls the tension output of each drawing unit to simultaneously output different tensions to the knitting needles in each overlapping area.
3. The system for dynamically controlling the tension of a fully formed fabric area according to claim 2, wherein the control unit is further configured to control the corresponding drawing unit of the knitting needle to resume the initial tension output when the knitting needle leaves the overlapping area.
4. The system of claim 3, wherein the plurality of knitting modules are spaced apart in different regions.
5. The system of claim 1, wherein the knitting pattern comprises a needle-over pattern and a knitting pattern.
6. The system for dynamically controlling the tension of a fully formed fabric area according to claim 1, wherein a plurality of knitting modules are provided with image recognition units, and the image recognition units are connected with the knitting needle area acquisition units;
the image recognition unit is used for carrying out image recognition on the needle plate in the moving process of the machine head so as to obtain a knitting needle image corresponding to the knitting module;
and the knitting needle area acquisition unit is used for acquiring the knitting needle area on the corresponding needle plate of the knitting module according to the knitting needle image.
7. The system for dynamically controlling the tension of the fully formed fabric area according to claim 1, wherein the machine head comprises a coordinate calculation unit, and the coordinate calculation unit is connected with the knitting needle area acquisition unit;
the coordinate calculation unit is used for calculating the position coordinate of the knitting module in the moving process of the machine head;
and the knitting needle area acquisition unit is used for acquiring the knitting needle area on the needle plate corresponding to the knitting module according to the position coordinates of the knitting module.
8. A method for dynamically controlling tension of a fully formed fabric region, based on a system for dynamically controlling tension of a fully formed fabric region according to any one of claims 1 to 7, comprising the steps of:
s1, presetting knitting forms and needle selection areas of all knitting modules;
s2, acquiring a knitting needle area on a needle plate corresponding to each knitting module in the machine head translation process;
s3, acquiring an overlapping area of each knitting module according to a knitting needle area on a needle plate corresponding to each knitting module and a needle selection area of each knitting module;
and S4, dynamically controlling the drawing module to output different tensile forces simultaneously and act on the knitting needles in the overlapped areas according to the knitting forms and the overlapped areas of the knitting modules so as to act on the knitting modules.
9. The method for dynamically controlling the tension of a fully formed fabric area according to claim 8, wherein after the step S4, the method further comprises a step S5:
and S5, when the knitting needle leaves the overlapped area, controlling the pulling module to output the pulling force of the knitting needle to recover to the initial pulling force.
10. The method for dynamically controlling the tension of a fully-formed fabric area according to claim 8, wherein in step S2, the method comprises:
and acquiring the knitting needle area on the needle plate corresponding to the knitting module according to the position coordinates of the knitting module in the moving process of the machine head.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210378759.8A CN114775154B (en) | 2022-04-12 | 2022-04-12 | Dynamic control system and method for tensile force of full-formed fabric area |
| PCT/CN2022/097252 WO2023197427A1 (en) | 2022-04-12 | 2022-06-07 | Regional pulling force dynamic control system and method for fully fashioned fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210378759.8A CN114775154B (en) | 2022-04-12 | 2022-04-12 | Dynamic control system and method for tensile force of full-formed fabric area |
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| Publication Number | Publication Date |
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| CN114775154A CN114775154A (en) | 2022-07-22 |
| CN114775154B true CN114775154B (en) | 2022-10-18 |
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| CN202210378759.8A Active CN114775154B (en) | 2022-04-12 | 2022-04-12 | Dynamic control system and method for tensile force of full-formed fabric area |
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| Country | Link |
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| CN (1) | CN114775154B (en) |
| WO (1) | WO2023197427A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114775154A (en) | 2022-07-22 |
| WO2023197427A1 (en) | 2023-10-19 |
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