Warp warp knitting machine warp tension non-uniform jitter detection device

Abstract

The utility model relates to the technical field of textile machinery, in particular to a warp yarn tension non-uniform shaking detection device of a warp knitting machine, which is arranged between warp feeding equipment and a high-speed carbon fiber warp knitting machine and comprises a support and an induction piece. The support is installed on a supporting plate at the bottom of the let-off equipment. The induction sheet is mounted on the bracket; wherein the induction sheet is provided with an induction area, a resistor and a circuit are arranged in the induction area, and the induction area extends to the outside through a wire and is connected with an external power supply. The yarn feeding device has the advantages that due to the arrangement of the induction piece, when yarn makes contact with the induction piece, an alarm is given, the specific contact position of the yarn can be detected according to the change of resistance voltage, the downtime caused by uneven tension and shaking is shortened, and the production efficiency is improved; the stability and uniformity of warp tension are ensured, and the quality problem of fabric is reduced; and equipment faults and damages caused by uneven tension and shaking are reduced, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of textile machinery, in particular to a warp yarn tension unevenness and shaking detection device for a warp knitting machine. Background Art

[0002] In the textile industry, warp knitting machines are key equipment for producing warp knitted fabrics. The stability and uniformity of warp tension directly affect the quality and production efficiency of fabrics. However, under high-speed operation, warp tension is easily affected by various factors and produces unevenness and jitter, which not only increases the probability of downtime, but also reduces the quality of fabrics. The reasons for uneven warp tension and jitter are complex and diverse, mainly including the following aspects: insufficient design, manufacturing and installation accuracy of the mechanical structure, transmission system, tension control device, etc. of the warp knitting machine, or wear, looseness and other faults during use will affect the uniformity and stability of warp tension; improper selection of parameters such as warp type, specification, twist, or unreasonable tension setting during the production process will lead to uneven warp tension and jitter; changes in environmental factors such as temperature, humidity, and airflow in the workshop will also affect the tension of the warp. For example, changes in temperature will cause the thermal expansion and contraction of the yarn, thereby affecting its tension; the skill level, operating habits, and maintenance of the equipment by the operator will also affect the control of the warp tension. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a warp yarn tension unevenness and jitter detection device for a warp knitting machine, which effectively solves the problems in the background technology.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a warp yarn tension uneven jitter detection device for a warp knitting machine, arranged between a warp let-off device and a high-speed carbon fiber warp knitting machine, comprising: a bracket and a sensor sheet;

[0005] The bracket is installed on the support plate at the bottom of the warp let-off device;

[0006] The induction sheet is installed on the bracket;

[0007] Wherein, a sensing area is provided on the sensing sheet, and a resistor and a circuit are provided in the sensing area, which are extended to the outside through a wire and connected to an external power source.

[0008] Furthermore, the bracket includes a straight beam plate and a cross beam plate, the straight beam plate includes a first straight beam plate and a second straight beam plate, and the first straight beam plate is connected to the support plate at the bottom of the warp feeding device through a connecting plate.

[0009] Furthermore, the second straight beam plate and the first straight beam plate are both vertically arranged, and the width is smaller than that of the first straight beam plate.

[0010] Furthermore, the first straight beam plate and the second straight beam plate are both provided with through holes of the same size at intervals along the center line.

[0011] Furthermore, the second straight beam plate is connected to the first straight beam plate through the through hole, and the connection height can be flexibly adjusted.

[0012] Furthermore, the bottom end of the second straight beam plate is fixedly connected to the middle part of the cross beam plate.

[0013] Furthermore, the length direction of the crossbeam plate is consistent with the horizontal direction of the yarn running direction, and the width direction is vertically arranged.

[0014] Furthermore, upper and lower parallel sliding grooves are provided on the cross beam plate, and the sliding grooves are symmetrically arranged with the second straight beam plate as a symmetry axis.

[0015] Furthermore, the induction sheet is connected to the second straight beam plate through the slide groove and is tilted at a certain angle as required.

[0016] The beneficial effects of the utility model are as follows: through the setting of the sensing sheet, an alarm is triggered when the yarn contacts the sensing sheet, and the specific position of the yarn contact can be detected according to the change of the resistance voltage, thereby reducing the downtime caused by uneven tension and jitter and improving production efficiency; ensuring the stability and uniformity of the warp tension and reducing the occurrence of fabric quality problems; reducing equipment failures and damages caused by uneven tension and jitter and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the installation structure of the warp yarn tension unevenness and vibration detection device for a warp knitting machine in an embodiment of the utility model;

[0019] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0020] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0021] Figure numerals: 1. bracket; 11. straight beam plate; 111. first straight beam plate; 112. second straight beam plate; 12. cross beam plate; 121. slide groove; 2. induction plate; 3. support plate; 4. connecting plate; 5. through hole; 6. warp feeding device; 7. high-speed carbon fiber warp knitting machine. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0025] like Figures 1 to 3 The warp yarn tension uneven jitter detection device of the warp knitting machine shown is arranged between the warp feeding device and the high-speed carbon fiber warp knitting machine, and includes: a bracket 1 and a sensor 2; the bracket 1 is installed on the support plate 3 at the bottom of the warp feeding device; the sensor 2 is installed on the bracket 1; wherein, the sensor 2 is provided with a sensing area, and a resistor and a circuit are provided in the sensing area, and the sensing area is extended to the outside through a wire and connected to an external power supply.

[0026] The implementation process of the utility model is to set the device between the warp feeding equipment and the high-speed carbon fiber warp knitting machine, adjust the height up and down through the through holes 5 on the first straight beam plate 111 and the second straight beam plate 112, and set the inclination angle through the slide grooves 121 arranged in parallel with the upper and lower parts of the sensor plate 2. When the yarn tension is insufficient or jitters, the yarn will contact the sensor plate 2, and the sensor plate 2 is provided with a resistor and a circuit. When the yarn contacts the sensor plate 2, since the yarn is conductive, it will cause a short circuit in the circuit. By detecting the voltage change of the circuit, the position of the uneven yarn tension can be detected, thereby realizing the detection of uneven yarn tension.

[0027] In the utility model, the bracket 1 includes a straight beam plate 11 and a cross beam plate 12. The straight beam plate 11 includes a first straight beam plate 111 and a second straight beam plate 112. The first straight beam plate 111 is connected to the support plate 3 at the bottom of the warp feeding device through a connecting plate 4. A stable supporting frame is formed by the combination of the straight beam plate 11 and the cross beam plate 12. The straight beam plate is connected to the support plate 3 at the bottom of the warp feeding device through the connecting plate 4, which simplifies the installation process of the bracket.

[0028] In the utility model, the second straight beam plate 112 and the first straight beam plate 111 are both vertically arranged, and the width is smaller than the first straight beam plate 111, which can provide a stable support effect and ensure the stability of the entire structure. At the same time, since the width of the second straight beam plate 112 is smaller than that of the first straight beam plate 111, while maintaining sufficient support strength, the lightweight of the material is achieved, which is beneficial to reduce the overall weight of the bracket and reduce the pressure on the bottom support plate of the warp feeding device. The first straight beam plate 111 and the second straight beam plate 112 are both provided with through holes 5 of the same size at intervals along the center line. The second straight beam plate 112 is connected to the first straight beam plate 111 through the through holes 5, and the connection height can be flexibly adjusted. The provision of the through holes 5 facilitates the installation and disassembly of the fixings during the installation process, and facilitates the flexible adjustment of the upper and lower heights.

[0029] In the present invention, the bottom end of the second straight beam plate 112 is fixedly connected to the middle of the cross beam plate 12. The length direction of the cross beam plate 12 is consistent with the horizontal direction of the yarn running direction, so that the cross beam plate can directly bear the horizontal tension or impact force generated during the yarn running process; the width direction is vertically arranged to provide sufficient vertical support force to ensure the stability of the entire support structure in the vertical direction. This optimization of force distribution helps to reduce the risk of stress concentration and fatigue damage.

[0030] In the utility model, a vertically parallel slide 121 is provided on the cross beam 12, and the slide 121 is symmetrically arranged with the second straight beam 112 as the axis of symmetry. According to the number of yarns, a plurality of sensing pieces 2 can be arranged for tension detection. Through the guidance and fixation of the slide 121, the position offset and angle deviation of the sensing piece 2 during installation and use can be reduced, thereby reducing the error and improving the accuracy and stability of the detection. The sensing piece 2 is connected to the second straight beam 112 through the slide 121 and tilted at a certain angle as required, so that the position and angle of the sensing piece 2 can be flexibly adjusted according to the actual working conditions or detection requirements, thereby improving the adaptability and flexibility of the equipment.

[0031] Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A warp yarn tension unevenness and jitter detection device for a warp knitting machine, arranged between a warp let-off device (6) and a high-speed carbon fiber warp knitting machine (7), characterized in that: include: A bracket (1) and a sensor sheet (2); The bracket (1) is mounted on a support plate (3) at the bottom of the warp let-off device (6); The induction sheet (2) is mounted on the bracket (1); The sensing sheet (2) is provided with a sensing area, in which a resistor and a circuit are provided, and the sensing area is extended to the outside through a wire and connected to an external power source.

2. The warp yarn tension unevenness and jitter detection device for a warp knitting machine according to claim 1, characterized in that: The support (1) comprises a straight beam plate (11) and a cross beam plate (12); the straight beam plate (11) comprises a first straight beam plate (111) and a second straight beam plate (112); the first straight beam plate (111) is connected to a support plate (3) at the bottom of the warp let-off device via a connecting plate (4).

3. The warp yarn tension unevenness and jitter detection device for a warp knitting machine according to claim 2, characterized in that: The second straight beam plate (112) and the first straight beam plate (111) are both vertically arranged, and have a width smaller than that of the first straight beam plate (111).

4. The warp yarn tension unevenness and jitter detection device for a warp knitting machine according to claim 2, characterized in that: The first straight beam plate (111) and the second straight beam plate (112) are both provided with through holes (5) of the same size at intervals along the midline.

5. The warp yarn tension unevenness and jitter detection device for a warp knitting machine according to claim 4, characterized in that: The second straight beam plate (112) is connected to the first straight beam plate (111) via the through hole (5), and the connection height can be flexibly adjusted.

6. The warp yarn tension unevenness and jitter detection device for a warp knitting machine according to claim 2, characterized in that: The bottom end of the second straight beam plate (112) is fixedly connected to the middle part of the cross beam plate (12).

7. The warp yarn tension unevenness and jitter detection device for a warp knitting machine according to claim 2, characterized in that: The length direction of the cross beam plate (12) is consistent with the horizontal direction of the yarn running direction, and the width direction is vertically arranged.

8. The warp yarn tension unevenness and jitter detection device for a warp knitting machine according to claim 2, characterized in that: The cross beam plate (12) is provided with a sliding groove (121) which is parallel to the upper and lower sides, and the sliding groove (121) is symmetrically arranged with the second straight beam plate (112) as a symmetry axis.

9. The warp yarn tension unevenness and jitter detection device for a warp knitting machine according to claim 8, characterized in that: The induction sheet (2) is connected to the second straight beam plate (112) via the slide groove (121) and is tilted at a certain angle as required.

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