Intelligent yarn feeder control method of fully automatic computer flat knitting machine and fully automatic computer flat knitting machine

Abstract

The present invention discloses a smart yarn mouth control method for a fully automatic computerized flat knitting machine and the fully automatic computerized flat knitting machine. The fully automatic computerized flat knitting machine includes a plurality of intarsia yarn mouths, and is characterized in that each intarsia yarn mouth is driven and controlled by a separate servo motor; the smart yarn mouth control method comprises: using a smart yarn mouth control system to separate the knitting pattern data of the fabric into rows, generating a mechanical action for knitting each knitting pattern of the fabric in each row, and then driving each intarsia yarn mouth to execute the action by its corresponding servo motor; the present invention greatly improves the knitting efficiency, effectively reduces the generation of rotten edges, thereby reducing the waste rate, saving costs and improving efficiency.

Description

Technical Field

[0001] The present invention belongs to the field of fully-automatic computerized flat knitting machine control, and specifically relates to an intelligent yarn feeder control method for a fully-automatic computerized flat knitting machine. The present invention also relates to a fully-automatic computerized flat knitting machine to which the intelligent yarn feeder control method is applied. Background Art

[0002] In existing fully automatic computerized flat knitting machines, in order to meet the pattern requirements of the fabric, the computerized flat knitting machine needs to drive the yarn feeder control device to switch the color-changing electromagnet, and replace different yarn feeders by driving different yarn feeders to achieve the purpose of changing the yarn color.

[0003] Specifically, the existing traditional machine head color change is basically through the machine head color change seat, which switches the color change electromagnet during the operation of the machine head, and synchronously drives different yarn feeders (for example, yarn feeder A and yarn feeder B). However, after knitting is completed, if a yarn feeder is found to be out of a safe position, the machine head needs to run idle to bring it to a safe position, which significantly affects the working efficiency of the machine head. Alternatively, if yarn feeder A is found to be stopped in an unsafe position, yarn feeder B needs to be forcibly replaced to continue knitting. However, this will cause yarn feeder A to hit the needle tongue, and there is even the possibility that yarn feeder B and yarn feeder A will collide.

[0004] Moreover, the applicant has further discovered that when the machine head is used to run idle to bring the yarn feeder that is not in a safe position to a safe position, some specific problems may arise: when the knitting pattern is certain specific patterns, the number of rows in which the machine head runs idle and kicks the yarn feeder exceeds the number of effective knitting rows, which means that more than half of the machine head's calculations are invalid clothing knitting operations, resulting in an increase in the number of rows in which the machine head runs idle, and the corresponding knitting production efficiency is significantly reduced.

[0005] To this end, based on the applicant's dedicated research and development experience in computerized flat knitting machines, we hope to improve the above technical problems by seeking technical solutions. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide an intelligent yarn feeder control method for a fully automatic computerized flat knitting machine and a fully automatic computerized flat knitting machine, which greatly improves the weaving efficiency, effectively reduces the generation of rotten edges, thereby reducing the waste rate, saving costs and improving efficiency.

[0007] The technical solution adopted in the present invention is as follows:

[0008] A method for controlling an intelligent yarn feeder of a fully automatic computerized flat knitting machine, the fully automatic computerized flat knitting machine comprising a plurality of intarsia yarn feeders, each of which is driven and controlled by a separate servo motor; the method comprising: using an intelligent yarn feeder control system to separate the knitting pattern data of a fabric into rows, generating a mechanical action for knitting each knitting pattern of the fabric in each row, and then driving each intarsia yarn feeder to execute the action by its corresponding servo motor.

[0009] Preferably, the row disassembly method of the Zhipao yarn mouth control system includes: when the width between two intarsia areas in the knitting pattern data of the fabric is greater than the intarsia safety needle number, the Zhipao yarn mouth control system is driven by a servo motor with two intarsia yarn mouths in a single row, and the two intarsia yarn mouths complete the single-row knitting work of the corresponding two knitting patterns.

[0010] Preferably, the row disassembly method of the Zhipao yarn mouth control system includes: when the width between two intarsia areas in the knitting pattern material of the fabric is less than or equal to the intarsia safety stitch number, the Zhipao yarn mouth control system drives the servo motor drive mode with a stepped intarsia yarn mouth distribution, and when one of the intarsia yarn mouths completes the knitting work of its corresponding intarsia area and returns to the safe position, the other intarsia yarn mouth completes the knitting work of its corresponding intarsia area.

[0011] Preferably, the intarsia safety needle count is based on the basic goal of preventing two intarsia yarn feeders from colliding in a single row, and the smaller the intarsia safety needle count, the better.

[0012] Preferably, the number of intarsia safety needles is at least greater than the number of needles corresponding to the width of an intarsia yarn feeder, or at least greater than the distance from the parking position of the intarsia yarn feeder to the knitting area.

[0013] Preferably, the intarsia yarn feeder has a width ranging from 0.4 to 0.6 inches.

[0014] Preferably, the fully automatic computerized flat knitting machine includes 16-20 intarsia yarn mouths, and each intarsia yarn mouth is driven and controlled by a separate servo motor.

[0015] Preferably, the Zhipao yarn mouth control system includes a servo driver, a frame board servo circuit control board and a transfer control board, and the frame board servo circuit control board is bidirectionally communicated with the servo driver and the transfer control board respectively, wherein the transfer control board is connected to each servo motor driver.

[0016] Preferably, the rack board servo circuit control board is bidirectionally connected to the servo driver and the transfer control board via CAN communication.

[0017] Preferably, a fully automatic computerized flat knitting machine adopts the intelligent yarn feeder control method as described above.

[0018] The present invention breaks the traditional mode of the existing machine head driving the yarn mouth, and proposes that each intarsia yarn mouth is controlled by an independent servo motor. At the same time, it is particularly proposed to compare the width between the two intarsia areas in the knitting pattern data of the fabric with the intarsia safety needle number, and determine the knitting mode of the intarsia yarn mouth according to the comparison result; after actual verification, the intelligent yarn mouth control method provided by the present application can improve the knitting efficiency by up to about 85% when knitting a specific pattern, and can independently control up to 20 intarsia yarn mouths. The intarsia yarn mouth can accurately and reliably stay at the parking point and accurately cooperate with the needle output and needle reduction of the machine head, so as to realize hanging hair, partial jacquard, multi-color intarsia, reverse yarn plating and complex patterns that ordinary computer flat knitting machines cannot knit. The knitting of complex patterns is higher, the precision is more accurate and the fabric quality is better; at the same time, since the parking point of each intarsia yarn mouth is accurate during work, the knitting efficiency is greatly improved, the generation of rotten edges is effectively reduced, thereby reducing the waste rate, saving costs and improving efficiency.

[0019] The present invention also proposes an intelligent yarn mouth control connection structure, which is specifically composed of a servo driver, a frame plate servo circuit control board and a transfer control board. The frame plate servo circuit control board is bidirectionally connected to the servo driver and the transfer control board respectively. Each inlay yarn mouth is driven and controlled by a separate servo motor, and the transfer control board is connected to each servo motor drive. The structure is simple and reliable, easy to implement, and very suitable for batch promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the Zhixing yarn feeder control connection structure (equivalent to the Zhipao yarn feeder control system) in a specific embodiment of the present application;

[0021] Figure 2 This is a control principle block diagram of the intelligent yarn feeder control method according to the specific implementation method of this application;

[0022] Figure 3 Schematic diagram of the distribution of intarsia yarn feeders when the width between intarsia areas is less than or equal to the intarsia safety stitch count in a specific embodiment of the present application;

[0023] Figure 4 This is a schematic diagram of the distribution of the intarsia yarn feeders when the width between the intarsia areas is greater than the intarsia safety stitch count in a specific embodiment of the present application. DETAILED DESCRIPTION

[0024] An embodiment of the present invention discloses a smart yarn mouth control method for a fully automatic computerized flat knitting machine. The fully automatic computerized flat knitting machine includes multiple intarsia yarn mouths, and each intarsia yarn mouth is driven and controlled by a separate servo motor. The smart yarn mouth control method includes: using a smart yarn mouth control system to split the knitting pattern data of the fabric into rows, generating a mechanical action for knitting each knitting pattern of the fabric in each row, and then driving each intarsia yarn mouth to execute the action by its corresponding servo motor.

[0025] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0026] See Figure 1 The figure shows an intelligent yarn mouth control connection structure of a fully automatic computerized flat knitting machine. The fully automatic computerized flat knitting machine includes multiple intarsia yarn mouths. The intelligent yarn mouth control connection structure (equivalent to the intelligent yarn mouth control system) includes a servo driver 1, a frame board servo circuit control board 2 and a transfer control board 3. The frame board servo circuit control board 2 is bidirectionally connected to the servo driver 1 and the transfer control board 3 respectively. Each intarsia yarn mouth is driven and controlled by a separate servo motor, and the transfer control board 3 is driven and connected to each servo motor.

[0027] Preferably, in this embodiment, the rack board servo circuit control board 2 is connected to the servo driver 1 and the transfer control board 3 in a two-way communication manner via a CAN communication circuit.

[0028] Specifically preferably, in this embodiment, the rack board servo circuit control board 2 is connected to the servo driver 1 through a bidirectional communication connection via a first CAN communication plug-in 4; a first plug interface (not shown) adapted to the plug 41 of the first CAN communication plug-in 4 is provided on the rack board servo circuit control board 2.

[0029] Specifically preferably, in this embodiment, the rack board servo circuit control board 2 and the adapter control board 3 are connected for bidirectional communication through the second CAN communication plug-in 5; the rack board servo circuit control board 2 is provided with a second plug interface (not shown in the figure) adapted to the plug 51 of the second CAN communication plug-in 5; the adapter control board 3 is provided with a plug interface (not shown in the figure) adapted to another plug 52 of the second CAN communication plug-in 5.

[0030] In order to achieve the target current output to each servo motor and at the same time simplify the circuit layout structure, preferably, in this embodiment, the adapter control board 3 is also provided with a third CAN communication plug-in 6 connected to each servo motor, and a color ring resistor 7 is connected in series at the plug end of the third CAN communication plug-in 6; the resistance range of the color ring resistor 7 is 100-150Ω; specifically preferably, in this embodiment, the color ring resistor 7 is connected in series to the circuit of the third CAN communication plug-in 6, and a heat shrink tube 7a is used for heat shrink protection.

[0031] Further preferably, in the present embodiment, the fully automatic computerized flat knitting machine includes 16-20 intarsia yarn mouths, the number of servo motors is 16-20, and each intarsia yarn mouth is driven and controlled by a separate servo motor; specifically preferably, in the present embodiment, the number of servo motors is 16, and the resistance of the color ring resistor 7 is 120Ω.

[0032] Based on the intelligent yarn feeder control connection structure of the above scheme, this embodiment proposes an intelligent yarn feeder control method for a fully automatic computerized flat knitting machine. The fully automatic computerized flat knitting machine includes multiple intarsia yarn feeders, each of which is driven and controlled by a separate servo motor. The intelligent yarn feeder control method includes: using the intelligent yarn feeder control system to separate the knitting pattern data of the fabric into rows, generating the mechanical action of knitting each knitting pattern of the fabric in each row, and then driving each intarsia yarn feeder to execute the action by its corresponding servo motor;

[0033] Preferably, in this embodiment, the row dismantling method of the Zhipao yarn mouth control system includes: when the width between the two intarsia areas in the knitting pattern material of the fabric is greater than the intarsia safety needle number, the Zhipao yarn mouth control system drives the servo motor driving mode of a single row with two intarsia yarn mouths, and the two intarsia yarn mouths complete the single-row knitting work of the corresponding two knitting patterns; when the width between the two intarsia areas in the knitting pattern material of the fabric is less than or equal to the intarsia safety needle number, the Zhipao yarn mouth control system drives the servo motor driving mode of a stepped intarsia yarn mouth distribution (also known as "one row dismantled into multiple rows in a stepped form"), and when one of the intarsia yarn mouths completes the knitting work of its corresponding intarsia area and returns to the safety position, the other intarsia yarn mouth completes the knitting work of its corresponding intarsia area; finally, the pattern row dismantling method design is entered into the Zhipao yarn mouth control system to complete the knitting work (that is, the pattern entry system completes the weaving).

[0034] It should be noted that the "comparison between the width between the two intarsia areas and the number of intarsia safety stitches" mentioned above in this application is an exemplified minimum unit comparison principle. In actual application, the matching intarsia yarn mouth drive operation mode can be selected according to actual conditions.

[0035] For more details, see Figure 3As shown in the figure, when it is found that the width between the four intarsia areas is less than the intarsia safety needle number, the four intarsia yarn feeders (including yarn feeder 1, yarn feeder 2, yarn feeder 3, yarn feeder 4) adopt the servo motor drive mode of the stepped intarsia yarn feeder distribution; please refer to Figure 4 As shown, when it is found that the width between the four intarsia areas is greater than the intarsia safety stitch number, a servo motor drive mode with four intarsia yarn feeders (including yarn feeder 1, yarn feeder 2, yarn feeder 3, and yarn feeder 4) in a single row is adopted.

[0036] Preferably, in the present embodiment, the intarsia safety stitch count is based on the basic goal of preventing two intarsia yarn feeders from colliding in a single row, and the smaller the intarsia safety stitch count, the better; further preferably, in the present embodiment, the intarsia safety stitch count is at least greater than the number of stitches corresponding to the width of an intarsia yarn feeder, or at least greater than the distance from the parking position of the intarsia yarn feeder to the knitting area, wherein the larger value between the number of stitches corresponding to the width of an intarsia yarn feeder and the distance from the parking position of the intarsia yarn feeder to the knitting area is used as the basis for determining the value of the intarsia safety stitch count, that is, the intarsia safety stitch count should be greater than the larger value; specifically preferably, in the present embodiment, the intarsia yarn feeder width range is 0.4-0.6 inches, typically 0.5 inches, and the specific intarsia safety stitch count can be determined based on actual conditions, and the present application does not impose any specific limitation on its specific numerical range.

[0037] Preferably, this embodiment further proposes a fully automatic computerized flat knitting machine, which adopts the above-mentioned intelligent yarn feeder control method and the above-mentioned intelligent yarn feeder control connection structure.

[0038] After actual verification, the intelligent yarn feeder control method provided by this embodiment can improve the weaving efficiency by up to about 85% when weaving specific patterns. The intarsia yarn feeder can accurately and reliably stay at the parking point and precisely cooperate with the needle output and needle reduction of the machine head. It can realize hanging hair, partial jacquard, multi-color intarsia, reverse yarn plating and complex patterns that ordinary computer flat knitting machines cannot weave. When weaving complex patterns, the efficiency is higher, the precision is more accurate, and the fabric quality is better. At the same time, since the parking point of each intarsia yarn feeder in this embodiment is accurate during work, the weaving efficiency is greatly improved, and the generation of rotten edges is effectively reduced, thereby reducing the waste rate, saving costs and improving efficiency.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0040] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A method for controlling a smart yarn feeder of a fully automatic computerized flat knitting machine, wherein the fully automatic computerized flat knitting machine includes a plurality of intarsia yarn feeders, characterized in that: Each intarsia yarn mouth is driven and controlled by a separate servo motor; the Zhixing yarn mouth control method includes: using the Zhipao yarn mouth control system to separate the knitting pattern data of the fabric into rows, generating the mechanical action of knitting each knitting pattern of the fabric in each row, and then driving each intarsia yarn mouth to execute the action by its corresponding servo motor; The row dismantling method of the Zhipao yarn mouth control system includes: when the width between two intarsia areas in the knitting pattern data of the fabric is greater than the intarsia safety stitch count, the Zhipao yarn mouth control system is driven by a servo motor with two intarsia yarn mouths in a single row, and the two intarsia yarn mouths complete the single row knitting work of the corresponding two knitting patterns; The Zhipao yarn feeder control system has a row disassembly method comprising: when the width between two intarsia areas in the knitting pattern of the fabric is less than or equal to the intarsia safety stitch count, the Zhipao yarn feeder control system drives a servo motor with a stepped intarsia yarn feeder distribution, and when one intarsia yarn feeder completes the knitting work of its corresponding intarsia area and returns to a safe position, the other intarsia yarn feeder completes the knitting work of its corresponding intarsia area; The basic goal of the intarsia safety needle count is to prevent two intarsia yarn feeders from colliding in a single row, and the smaller the intarsia safety needle count, the better.

2. The intelligent yarn feeder control method according to claim 1, characterized in that: The intarsia safety needle number is at least greater than the needle number corresponding to the width of an intarsia yarn feeder, or at least greater than the distance from the intarsia yarn feeder parking position to the knitting area.

3. The intelligent yarn feeder control method according to claim 1, characterized in that: The width of the intarsia yarn feeder ranges from 0.4 to 0.6 inches.

4. The intelligent yarn feeder control method according to claim 1, characterized in that: The fully automatic computerized flat knitting machine comprises 16 to 20 intarsia yarn mouths, each of which is driven and controlled by a separate servo motor.

5. The intelligent yarn feeder control method according to claim 1, characterized in that: The Zhipao yarn feeder control system includes a servo driver, a frame plate servo circuit control board and a transfer control board. The frame plate servo circuit control board is bidirectionally connected to the servo driver and the transfer control board respectively, wherein the transfer control board is connected to each servo motor driver.

6. The intelligent yarn feeder control method according to claim 5, characterized in that: The rack plate servo circuit control board is connected to the servo driver and the transfer control board in a two-way communication manner respectively through a CAN communication mode.

7. A fully automatic computerized flat knitting machine, characterized in that: The intelligent yarn feeder control method according to any one of claims 1 to 6 is adopted.

Images