Novel side spring yarn control system of flat knitting machine

Abstract

The invention discloses a novel side spring yarn control system of a flat knitting machine, which belongs to the technical field of textile, and comprises a frame body, a rotating shaft, a user terminal and a stop lever, the rotating shaft and the stop lever are both fixedly mounted on the frame body; the device further comprises a plurality of pulleys, a plurality of sliding sleeves and a plurality of rotating sleeves. The pulleys and the sliding sleeves are fixedly installed on the frame body at equal intervals. The plurality of rotating sleeves are rotatably mounted on the outer wall of the rotating shaft at equal intervals; a short rod is fixedly installed at the upper end of the rotating sleeve, a long rod is fixedly installed at the lower end of the rotating sleeve, a pull sleeve is fixedly installed at the left end of the long rod, and the short rod and the long rod are collinear. By means of the mode, F setting adjustment at the position of the pull sleeve is achieved so that the tension requirements of different yarns can be met.

Description

Technical Field

[0001] The invention relates to the field of textile technology, and in particular to a novel side spring yarn control system for a flat knitting machine. Background Art

[0002] The flat knitting machine controlled edge spring yarn system is an automated device used in the textile industry, mainly used to control the tension and supply of yarn to ensure the quality and production efficiency of the fabric;

[0003] Among many existing technologies, Chinese patent application CN117144546A discloses a side wire frame of a computer flat knitting machine, which includes a frame body, a gear rod, a plurality of jumper rods, a plurality of guide wheels and a plurality of limit units; it also includes a plurality of groups of wire feed units, which are sequentially arranged on the plurality of jumper rods, and each wire feed unit includes: a connecting part, a first end of which is fixedly connected to the bottom of the jumper rod, and a second end opposite to the first end is provided with a first threading hole; a sliding sleeve, which is slidably connected to the connecting part between the first end and the second end of the connecting part and cannot leave the connecting part from the second end; a blocking part, which is fixedly connected to the first end position of the connecting part; and a compression spring.

[0004] However, the patent application has the problem of false triggering in detecting whether the line is broken, which makes it inconvenient to use.

[0005] Based on this, the present invention designs a novel flat knitting machine to control the side spring yarn system to solve the above problems. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a novel side spring yarn control system for a flat knitting machine.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A novel side spring yarn control system for a flat knitting machine comprises a frame, a rotating shaft, a user terminal and a stopper, wherein the rotating shaft and the stopper are fixedly mounted on the frame;

[0009] It also includes a plurality of pulleys, a plurality of sliding sleeves and a plurality of rotating sleeves, wherein the plurality of pulleys and the plurality of sliding sleeves are fixedly installed on the frame at equal intervals;

[0010] The plurality of rotating sleeves are rotatably mounted on the outer wall of the rotating shaft at equal intervals;

[0011] A short rod is fixedly installed on the upper end of the rotating sleeve, a long rod is fixedly installed on the lower end of the rotating sleeve, a pulling sleeve is fixedly installed on the left end of the long rod, and the short rod is collinear with the long rod;

[0012] The yarn slides through the sliding sleeve, the pulling sleeve and the lower end of the pulley from top to bottom;

[0013] The blocking rod cooperates with the long rod to limit the position;

[0014] Multiple sets of electric tension adjustment components are installed on the frame;

[0015] The electric tension adjustment assembly is connected to the end of the short rod;

[0016] The electric tension adjustment component is electrically connected to a computing control alarm system;

[0017] The calculation control alarm system is used to collect the tension value applied by the electric tension adjustment component on the short rod, set the adjustment value of the electric tension adjustment component, and calculate the output tension value applied by the pull sleeve on the yarn, and judge whether the yarn is broken. When it is judged that the yarn is broken, the calculation control alarm system generates a broken alarm signal;

[0018] The computing control alarm system is connected to the user terminal by wireless communication, and the computing control alarm system sends the driving tension value and the yarn breakage alarm signal to the user terminal.

[0019] Furthermore, the electric tension adjustment assembly includes a spring, a tension sensor and a screw stepper motor, one end of the spring is hinged to the end of the short rod, the other end of the spring is fixedly connected to one end of the tension sensor, and the other end of the tension sensor is hinged to the output end of the screw stepper motor; the screw stepper motor is fixedly mounted on the frame;

[0020] The tension sensor and the screw stepper motor are both electrically connected to a calculation control alarm system, and the calculation control alarm system collects the tension value of the tension sensor.

[0021] Furthermore, the computing control alarm system includes a central controller, a data acquisition device, a multi-channel motor driver, an alarm unit, a tension calculation module and a wireless communication module;

[0022] The central controller is electrically connected to the data collector, the multi-channel motor driver, the alarm unit, and the wireless communication module; the tension calculation module is communicatively connected to the central controller; the multi-channel motor driver is electrically connected to the screw stepper motor; and the wireless communication module is wirelessly connected to the user terminal;

[0023] The data collector is electrically connected to the tension sensor and collects the tension value F1, and the data collector sends F1 to the central control to send F1 to the tension calculation module;

[0024] The central controller is used to set the adjustment value L2 of the screw stepper motor. The central controller identifies the value of L2 and generates a control signal for controlling the adjustment of the screw stepper motor. The central controller sends the control signal to the multi-channel motor drive to adjust to the corresponding position.

[0025] Furthermore, F3 represents the output tension at the pull sleeve and adopts the following formula:

[0026] F3 = F2 * S1 / S2;

[0027] F2 = F1 * COS (C);

[0028] COS(C)=(S3 2 +S1 2 -L1 2 ) / 2S3S1;

[0029] S3=S4+X;

[0030] X = F1 / K;

[0031] The distance L1 between point B and point A is calculated using the following formula: L1 2 =L2 2 +L3 2 ;

[0032] Where L2 represents the distance between point B and point E, L3 represents the distance between point E and point A and L3 is a constant;

[0033] Point E represents the intersection of the horizontal line where B is located and the vertical line where A is located;

[0034] Where F2 is the driving force perpendicular to the short rod, and cos(C) is the cosine value of C in the triangle composed of A, B, and C:

[0035] A represents the rotation center point of the rotating sleeve, B represents the output end point of the screw stepper motor, and C represents the end point of the short rod;

[0036] S1 represents the distance between B and A, S2 represents the vertical distance between A and the horizontal line where the pull sleeve (8) is located, S3 represents the distance between C and A, S4 represents the original length of the spring, K represents the elastic coefficient of the spring, and X represents the elongation of the spring.

[0037] Furthermore, the tension calculation module calculates the output tension F3 at the pull sleeve based on the adjustment value L2. 设定 , the output tension F3 设定 It indicates the output tension at the pull sleeve when no yarn passes through, and the long rod moves to the position that conflicts with the stop rod.

[0038] Furthermore, when F3=F3 设定 At this time, the traction force of the yarn at the pull sleeve is zero, and the tension calculation module determines that the yarn is broken.

[0039] Furthermore, when the tension calculation model

[0040] The multi-channel motor driver issues a disconnection alarm when receiving a disconnection alarm signal;

[0041] The wireless communication module receives the thread break alarm signal and sends it to the user terminal, and the user terminal prompts the user that the yarn is broken.

[0042] Furthermore, the central controller sends F3 calculated by the tension calculation module to the wireless communication module, and then the wireless communication module sends it to the user terminal.

[0043] Compared with the prior art, the present invention has the following beneficial effects: 1. It only needs to collect the tension value F1 of the tension sensor, and set the distance L2 between the output end point B and the E point of the screw stepper motor as the adjustment variable, thereby realizing the adjustment of the pull sleeve F3. 设定 Adjustable to suit different yarn tension requirements.

[0044] When the yarn passes through the sliding sleeve, the pull sleeve, and the pulley in sequence, the F3 at the pull sleeve is calculated to be different from the F3 when no yarn passes through. 设定 Whether the two values ​​are equal can be used to determine whether the yarn has passed through the draw sleeve, thereby realizing the yarn breakage detection without the need for a sensor, thus avoiding the problem of false triggering of the sensor detection.

[0045] 2. Calculate the F3 value by the lever principle. When the short rod and the long rod are balanced, the sum of the moments at both ends is zero. Therefore, the numerical value of F3 can be obtained by F2*S1=F3*S2, and the numerical value of F3 can reflect the magnitude of the force applied to the yarn.

[0046] 3. Users can monitor the size of F3 in real time through the user terminal and obtain yarn breakage alarm in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0048] Figure 1 It is a schematic plan view of a novel flat knitting machine controlling a side spring yarn system of the present invention;

[0049] Figure 2 It is a block diagram of a novel flat knitting machine controlling a side spring yarn system of the present invention;

[0050] Figure 3 It is a schematic diagram of force analysis of the rotating sleeve, short rod and long rod of the present invention;

[0051] Figure 4It is a schematic diagram between points A, B, C and between points A, B, E of the present invention;

[0052] Figure 5 It is a schematic diagram between points B and C of the present invention.

[0053] The numbers in the figure represent:

[0054] 1. Frame 2. Pulley 3. Sliding sleeve 4. Rotating shaft 5. Rotating sleeve 6. Short rod 7. Long rod 8. Pull sleeve 9. Spring 10. Tension sensor 11. Screw stepper motor 12. Central controller 13. Data collector 14. Multi-channel motor driver 15. Alarm unit 16. Tension calculation module 17. Wireless communication module 18. User terminal 19. Yarn 20. Stop rod. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0056] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0057] Embodiment 1: In some embodiments, please refer to the drawings of the specification Figure 1-Figure 5 A novel flat knitting machine control side spring yarn system comprises a frame 1, a rotating shaft 4, a user terminal 18 and a stop bar 20, wherein the rotating shaft 4 and the stop bar 20 are fixedly mounted on the frame 1;

[0058] It also includes a plurality of pulleys 2, a plurality of sliding sleeves 3 and a plurality of rotating sleeves 5, wherein the plurality of pulleys 2 and the plurality of sliding sleeves 3 are fixedly mounted on the frame 1 at equal intervals;

[0059] A plurality of rotating sleeves 5 are rotatably mounted on the outer wall of the rotating shaft 4 at equal intervals;

[0060] A short rod 6 is fixedly installed on the upper end of the rotating sleeve 5, a long rod 7 is fixedly installed on the lower end of the rotating sleeve 5, a pull sleeve 8 is fixedly installed on the left end of the long rod 7, and the short rod 6 and the long rod 7 are collinear;

[0061] The yarn 19 slides through the sliding sleeve 3, the pulling sleeve 8 and slides along the lower end of the pulley 2 from top to bottom;

[0062] The blocking rod 20 cooperates with the long rod 7 to limit the position;

[0063] A plurality of electric tension adjustment components are installed on the frame 1;

[0064] The electric tension adjustment assembly is connected to the end of the short rod 6;

[0065] The electric tension adjustment assembly is electrically connected to a computing control alarm system;

[0066] The calculation control alarm system is used to collect the tension value applied by the electric tension adjustment component on the short rod 6, set the adjustment value of the electric tension adjustment component, and calculate the output tension value applied by the pull sleeve 8 on the yarn 19, and at the same time judge whether the yarn 19 is broken. When it is judged that the yarn 19 is broken, the calculation control alarm system generates a broken alarm signal;

[0067] The calculation control alarm system is connected to the user terminal 18 by wireless communication, and the calculation control alarm system sends the driving tension value and the yarn 19 breakage alarm signal to the user terminal 18.

[0068] When the present invention is used, it is only necessary to collect the tension value F1 of the tension sensor 10, and set the distance L2 between the output end point B and the point E of the screw stepping motor 11 as the adjustment variable, thereby realizing the adjustment of the tension value F3 at the pull sleeve 8. 设定 Adjust to suit the tension requirements of different yarns 19.

[0069] When the yarn 19 passes through the sliding sleeve 3, the pull sleeve 8, and the pulley 2 in sequence, the F3 at the pull sleeve 8 is calculated to be different from the F3 when the yarn 19 does not pass through. 设定 Whether the yarn 19 is equal to each other can be determined to determine whether the yarn 19 passes through the pull sleeve 8, thereby achieving the goal of not needing to detect the breakage of the yarn 19 through a sensor, thus avoiding the problem of false triggering of the sensor detection.

[0070] Embodiment 2: In some embodiments, Figure 1-Figure 5 As shown, as a preferred embodiment of the present invention, the electric tension adjustment assembly includes a spring 9, a tension sensor 10 and a screw stepper motor 11, one end of the spring 9 is hinged to the end of the short rod 6, the other end of the spring 9 is fixedly connected to one end of the tension sensor 10, and the other end of the tension sensor 10 is hinged to the output end of the screw stepper motor 11; the screw stepper motor 11 is fixedly installed on the frame 1;

[0071] The tension sensor 10 and the screw stepper motor 11 are both electrically connected to the calculation control alarm system, and the calculation control alarm system collects the tension value of the tension sensor 10 .

[0072] The calculation control alarm system includes a central controller 12, a data acquisition device 13, a multi-channel motor driver 14, an alarm unit 15, a tension calculation module 16 and a wireless communication module 17;

[0073] The central controller 12 is electrically connected to the data collector 13, the multi-channel motor driver 14, the alarm unit 15, and the wireless communication module 17. The tension calculation module 16 is in communication connection with the central controller 12. The multi-channel motor driver 14 is electrically connected to the screw stepper motor 11. The wireless communication module 17 is in wireless communication connection with the user terminal 18.

[0074] The data collector 13 is electrically connected to the tension sensor 10 and collects the tension value F1. The data collector 13 sends F1 to the central controller 12, and the central controller 12 sends F1 to the tension calculation module 16;

[0075] The central controller 12 is used to set the adjustment value L2 of the screw stepper motor 11. The central controller 12 identifies the value of L2 and generates a control signal for controlling the adjustment of the screw stepper motor 11. The central controller 12 sends the control signal to the multi-channel motor driver 14. The multi-channel motor driver 14 controls the output end of the screw stepper motor 11 to adjust to the corresponding position according to the signal.

[0076] Embodiment 3: In some embodiments, Figure 1-Figure 5 As shown, as a preferred embodiment of the present invention, F3 represents the output tension at the pull sleeve 8 and adopts the following formula:

[0077] F3 = F2 * S1 / S2;

[0078] F2 = F1 * COS (C);

[0079] COS(C)=(S3 2 +S1 2 -L1 2 ) / 2S3S1;

[0080] S3=S4+X;

[0081] X = F1 / K;

[0082] The distance L1 between point B and point A is calculated using the following formula: L1 2 =L2 2 +L3 2 ;

[0083] Where L2 represents the distance between point B and point E, L3 represents the distance between point E and point A and L3 is a constant;

[0084] Point E represents the intersection of the horizontal line where B is located and the vertical line where A is located;

[0085] Where F2 represents the driving force perpendicular to the short rod 6, and cos(C) represents the cosine value of C in the triangle composed of A, B, and C:

[0086] A represents the rotation center point of the rotating sleeve 5, B represents the output end point of the screw stepping motor 11, and C represents the end point of the short rod (6);

[0087] S1 represents the distance between B and A, S2 represents the vertical distance between A and the horizontal line where the pull sleeve 8 is located, F3 represents the output tension value applied to the pull sleeve 8, S3 represents the distance between C and A, S4 represents the original length of the spring 9 (ignoring the length of the tension sensor 10), K represents the elastic coefficient of the spring 9, and X represents the elongation of the spring 9.

[0088] The tension calculation module 16 calculates the output tension F3 at the pull sleeve 8 based on the adjustment value L2 设定 , output tension F3 设定 It represents the output tension at the pull sleeve 8 when no yarn 19 passes through the pull sleeve 8, and at this time, the long rod 7 moves to the position that conflicts with the stop rod 20;

[0089] When F3=F3 设定 At this time, the traction force of the yarn 19 at the pull sleeve 8 is zero, and the tension calculation module 16 determines that the yarn 19 is broken.

[0090] When the tension calculation module 16 determines that the yarn 19 is broken, the central controller 12 generates a broken wire alarm signal and sends it to the alarm unit 15 and the wireless communication module 17;

[0091] The multi-channel motor driver 14 issues a disconnection alarm when receiving a disconnection alarm signal;

[0092] The wireless communication module 17 receives the disconnection alarm signal and sends it to the user terminal 18 , and the user terminal 18 prompts the user that the yarn 19 is disconnected.

[0093] The central controller 12 sends F3 calculated by the tension calculation module 16 to the wireless communication module 17 , and then the wireless communication module 17 sends it to the user terminal 18 .

[0094] When the present invention is used, the F3 value is calculated by the lever principle. When the short rod 6 and the long rod 7 are balanced, the sum of the moments at both ends is zero. Therefore, the numerical value of F3 can be obtained by F2*S1=F3*S2, and the numerical value of F3 can reflect the magnitude of the force applied to the yarn 19.

[0095] When the present invention is used, the user can monitor the size of F3 in real time through the user terminal 18 and obtain the yarn 19 breakage alarm in time.

[0096] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A new type of flat knitting machine control side spring yarn system, characterized in that: It comprises a frame (1), a rotating shaft (4), a user terminal (18) and a blocking rod (20), wherein the rotating shaft (4) and the blocking rod (20) are both fixedly mounted on the frame (1); It also comprises a plurality of pulleys (2), a plurality of sliding sleeves (3) and a plurality of rotating sleeves (5), wherein the plurality of pulleys (2) and the plurality of sliding sleeves (3) are fixedly mounted on the frame (1) at equal intervals; The plurality of rotating sleeves (5) are rotatably mounted on the outer wall of the rotating shaft (4) at equal intervals; A short rod (6) is fixedly mounted on the upper end of the rotating sleeve (5), a long rod (7) is fixedly mounted on the lower end of the rotating sleeve (5), a pull sleeve (8) is fixedly mounted on the left end of the long rod (7), and the short rod (6) and the long rod (7) are colinear; The yarn (19) slides through the sliding sleeve (3), the pulling sleeve (8) in sequence from top to bottom and slides through along the lower end of the pulley (2); The blocking rod (20) cooperates with the long rod (7) to limit the position; A plurality of electric tension adjustment components are installed on the frame (1); The electric tension adjustment assembly is connected to the end of the short rod (6); The electric tension adjustment component is electrically connected to a computing control alarm system; The calculation control alarm system is used to collect the tension value applied by the electric tension adjustment component to the short rod (6), set the adjustment value of the electric tension adjustment component, and calculate the output tension value applied by the pull sleeve (8) to the yarn (19), and at the same time judge whether the yarn (19) is broken. When it is judged that the yarn (19) is broken, the calculation control alarm system generates a broken alarm signal; The computing control alarm system is wirelessly connected to the user terminal (18), and the computing control alarm system sends the driving tension value and the yarn (19) break alarm signal to the user terminal (18).

2. The novel flat knitting machine control side spring yarn system according to claim 1 is characterized in that: The electric tension adjustment component comprises a spring (9), a tension sensor (10) and a screw stepping motor (11); one end of the spring (9) is hinged to the end of the short rod (6); the other end of the spring (9) is fixedly connected to one end of the tension sensor (10); the other end of the tension sensor (10) is hinged to the output end of the screw stepping motor (11); the screw stepping motor (11) is fixedly mounted on the frame (1); The tension sensor (10) and the screw stepping motor (11) are both electrically connected to a calculation control alarm system, and the calculation control alarm system collects the tension value of the tension sensor (10).

3. The novel flat knitting machine control side spring yarn system according to claim 2 is characterized in that: The computing control alarm system comprises a central controller (12), a data acquisition device (13), a multi-channel motor driver (14), an alarm unit (15), a tension calculation module (16) and a wireless communication module (17); The central controller (12) is electrically connected to the data acquisition device (13), the multi-channel motor driver (14), the alarm unit (15), and the wireless communication module (17); the tension calculation module (16) is communicatively connected to the central controller (12); the multi-channel motor driver (14) is electrically connected to the screw stepper motor (11); and the wireless communication module (17) is wirelessly communicatively connected to the user terminal (18); The data collector (13) is electrically connected to the tension sensor (10) and collects the tension value F1. The data collector (13) sends F1 to the central controller (12), and the central controller (12) sends F1 to the tension calculation module (16); The central controller (12) is used to set the adjustment value L2 of the screw stepper motor (11). The central controller (12) identifies the value of L2 and generates a control signal for controlling the adjustment of the screw stepper motor (11). The central controller (12) sends the control signal to the multi-channel motor driver (14). The multi-channel motor driver (14) controls the output end of the screw stepper motor (11) to adjust to a corresponding position according to the signal.

4. The novel flat knitting machine side spring yarn control system according to claim 3 is characterized in that: F3 represents the output tension at the pull sleeve (8) and adopts the following formula: F3 = F2 * S1 / S2; F2 = F1 * COS (C); COS(C)=(S3 2 +S1 2 -L1 2 ) / 2S3S1; S3=S4+X; X = F1 / K; The distance L1 between point B and point A is calculated using the following formula: L1 2 =L2 2 +L3 2 ; Where L2 represents the distance between point B and point E, L3 represents the distance between point E and point A and L3 is a constant; Point E represents the intersection of the horizontal line where B is located and the vertical line where A is located; Where F2 is the driving force perpendicular to the short rod (6), and cos(C) is the cosine value of C in the triangle formed by A, B, and C: A represents the rotation center point of the rotating sleeve (5), B represents the output end point of the screw stepping motor (11), and C represents the end point of the short rod (6); S1 represents the distance between B and A, S2 represents the vertical distance between A and the horizontal line where the pull sleeve (8) is located, S3 represents the distance between C and A, S4 represents the original length of the spring (9), K represents the elastic coefficient of the spring (9), and X represents the elongation of the spring (9).

5. The novel side spring yarn control system of the flat knitting machine according to claim 4 is characterized in that: The tension calculation module (16) calculates the output tension F3 at the pull sleeve (8) based on the adjustment value L2. 设定 , the output tension F3 设定 It indicates the output tension of the draw sleeve (8) when no yarn (19) passes through the draw sleeve (8), at which time the long rod (7) moves to a position where it contacts the stop rod (20).

6. The novel flat knitting machine side spring yarn control system according to claim 5 is characterized in that: When F3=F3 设定 When the pulling force of the yarn (19) at the pull sleeve (8) is zero, the pulling force calculation module (16) determines that the yarn (19) is broken.

7. The novel flat knitting machine side spring yarn control system according to claim 6 is characterized in that: When the tension calculation module (16) determines that the yarn (19) is broken, the central controller (12) generates a broken yarn alarm signal and sends it to the alarm unit (15) and the wireless communication module (17); The multi-channel motor driver (14) issues a disconnection alarm when receiving a disconnection alarm signal; The wireless communication module (17) receives the disconnection alarm signal and sends it to the user terminal (18), and the user terminal (18) prompts the user that the yarn (19) is disconnected.

8. The novel side spring yarn control system for a flat knitting machine according to claim 7 is characterized in that: The central controller (12) sends F3 calculated by the tension calculation module (16) to the wireless communication module (17), which then sends it to the user terminal (18).

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