阅读说明：本技术 一种圆纬机积极送纱方式送纱量的计算方法 (A kind of calculation method of circular knitting machine active yarn transmission mode thread-feeding amount ) 是由 丛洪莲 蒋高明 王伟荣 高哲 董智佳 张爱军 于 2019-08-14 设计创作，主要内容包括：本发明公开了一种圆纬机积极送纱方式送纱量的计算方法。通过计算一定数量织针编织线圈结构的纱线长度,储纱轮可以在编织过程中根据编织需要的纱线长度改变送纱量,保证纱线进入编织区域时的张力恒定,减小相同线圈之间的大小差异,使得花纹更加清晰,布面更加平整,极大的提高了织物的质量和美观度。(The invention discloses a kind of calculation methods of circular knitting machine active yarn transmission mode thread-feeding amount.By the length of yarn for calculating certain amount knitting needle woven stitch structure, yarn storage wheel can change thread-feeding amount according to the length of yarn that braiding needs in the weaving process, guarantee constant tension when yarn enters woven extent, reduce the difference in size between identical coil, so that decorative pattern is more clear, cloth cover is more smooth, greatly improves the quality and aesthetics of fabric.)

1. a kind of calculation method of circular knitting machine active yarn transmission mode thread-feeding amount, which is characterized in that including the following steps:

(1) flower pattern technique imports weft-knitted fabric computer aided system, and system obtains the institutional framework of flower pattern；

(2) by selecting the machine number and cam system triangle sinking depth of circular knitting machine, determining yarn in braiding lopping, tuck and floating When line, single coil structure length of yarn；

(3) according to circular knitting machine maximum speed and machine total needle amount, when calculating circular knitting machine is run with maximum speed, one piece of knitting needle is completed The time that coil braid needs；

(4) according to circular knitting machine servo motor response frequency, the response time of servo motor is learnt；

(5) when being run according to servo motor response time and machine with maximum speed one piece of knitting needle complete that coil braid needs when Between, it calculates knitting needle and completes the minimum knitting needle quantity that the coil braid time is greater than the servo motor response time；

(6) knitting needle not less than the minimum knitting needle quantity numerical value calculated in (5) is chosen, knitting needle carries out coil volume by cam system It knits, the length of yarn that braiding needs when completing；

(7) length of yarn needed when being completed according to braiding obtains the thread-feeding amount of yarn storage wheel.

2. a kind of calculation method of circular knitting machine active yarn transmission mode thread-feeding amount according to claim 1, which is characterized in that with Selection corresponds to yarn storage wheel not less than the length of yarn of the knitting needle braiding needs of the minimum knitting needle quantity numerical value calculated in step (5) and send Yarn amount.

3. a kind of calculation method of circular knitting machine active yarn transmission mode thread-feeding amount according to claim 1, which is characterized in that step Suddenly it in (6), chooses knitting needle numerical value and is equal to the minimum knitting needle quantity calculated in step (5).

4. a kind of calculation method of circular knitting machine active yarn transmission mode thread-feeding amount according to claim 1, which is characterized in that step Suddenly it in (1), while system obtains flower pattern institutional framework, carries out flower pattern and decomposes to obtain weave diagram.

Technical field

The present invention relates to a kind of calculation methods of circular knitting machine active yarn transmission mode thread-feeding amount, belong to textile process technology neck Domain.

Background technique

Yarn-feeding mechanism is an important device of circular knitting machine.Major part jacquard circular knitting machine is sent using passive type at present Yarn is backed off from creel by means of the tension that loop-forming element when braiding generates yarn and guides to woven extent by yarn.According to Yarn speed is sent in the consumption yarn amount difference change of each moment, but tension can generate certain fluctuation when yarn enters woven extent, so that Coil size has certain difference, and it is smooth to influence cloth cover.

Summary of the invention

For overcome the deficiencies in the prior art, the present invention provides a kind of calculating of circular knitting machine active yarn transmission mode thread-feeding amount Method.

The present invention is achieved through the following technical solutions:

A kind of calculation method of circular knitting machine active yarn transmission mode thread-feeding amount, including the following steps:

(1) flower pattern technique imports weft-knitted fabric computer aided system, and system obtains the institutional framework of flower pattern；

(2) by selecting the machine number and cam system triangle sinking depth of circular knitting machine, determine yarn in braiding lopping, tuck When with flotation line, single coil structure length of yarn；

(3) according to circular knitting machine maximum speed and machine total needle amount, when calculating circular knitting machine is run with maximum speed, one piece of knitting needle Complete the time that coil braid needs；

(4) according to circular knitting machine servo motor response frequency, the response time of servo motor is learnt；

(5) one piece of knitting needle completes coil braid needs when being run according to servo motor response time and machine with maximum speed Time, calculate knitting needle complete the coil braid time be greater than the servo motor response time minimum knitting needle quantity；

(6) knitting needle not less than the minimum knitting needle quantity numerical value calculated in (5) is chosen, knitting needle carries out line by cam system Circle braiding, the length of yarn that braiding needs when completing；

(7) length of yarn needed when being completed according to braiding obtains the thread-feeding amount of yarn storage wheel.

A kind of calculation method of circular knitting machine active yarn transmission mode thread-feeding amount is fallen into a trap with choosing not less than step (5) The length of yarn that the knitting needle braiding of the minimum knitting needle quantity numerical value of calculation needs corresponds to yarn storage wheel thread-feeding amount.

A kind of calculation method of circular knitting machine active yarn transmission mode thread-feeding amount in step (6), chooses knitting needle numerical value etc. The minimum knitting needle quantity calculated in step (5).

A kind of calculation method of circular knitting machine active yarn transmission mode thread-feeding amount, in step (1), system obtains flower pattern group While knitting structure, carries out flower pattern and decompose to obtain weave diagram.

Advantageous effects of the invention:

By calculating the length of yarn of certain amount knitting needle woven stitch structure, yarn storage wheel can basis in the weaving process Braiding need length of yarn change thread-feeding amount, guarantee constant tension when yarn enters woven extent, reduce identical coil it Between difference in size so that decorative pattern is more clear, cloth cover is more smooth, greatly improves the quality and aesthetics of fabric.

Calculation method of the invention is simple, can be derived that the thread-feeding amount that yarn storage wheel conveys as needed, greatly improves The speed and quality of fabric processing.

Detailed description of the invention

Fig. 1 is the calculation flow chart for the calculation method that a kind of jacquard circular knitting machine positive type of the present invention send yarn mode thread-feeding amount；

Fig. 2 is the flower pattern plan of weave of fabric in embodiment 1.

Fig. 3 is the flower pattern plan of weave of fabric in embodiment 2.

Specific embodiment

The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention Technical solution, and not intended to limit the protection scope of the present invention.