Single-end warp thread tension synchronizer

Abstract

The utility model relates to the technical field of plastic flat yarn weaving, especially relates to a single warp tension synchronous device, including warp frame, and there is warp on the warp frame, and one end of the warp frame has a silk separating plate, a pair of silk pressing rods are symmetrically arranged on the outside one end centerline of the silk separating plate, the other end of the silk pressing rod has a front guide roller, a plurality of longitudinal rubber strips are evenly distributed on the front guide roller, and the rubber strips and the smooth surface of the opposite front guide roller are alternately distributed, one side of the front guide roller has a warp feeding roller, the longitudinal side of the warp feeding roller has a motor, the other side of the warp feeding roller has a rear guide roller, one side of the rear guide roller has a detection roller, and the other end of the detection roller has a weighing sensor, the improvement of the single warp tension synchronous device front guide roller can make the warp compare and adjust alignment according to the tension state of single yarn itself in the operation process, reduces the tension error of the whole warp, and improves the average tension precision of the warp.

Description

Technical Field

[0001] This utility model relates to the field of plastic flat yarn weaving technology, and in particular to a single warp yarn tension synchronization device. Background Technology

[0002] In the plastic flat yarn weaving industry, circular looms are the most important weaving equipment. Their high-speed and stable technical performance makes them the undisputed best-in-class product in the industry.

[0003] Based on feedback from current machine users, warp yarn splitting and breakage remain the main causes affecting equipment operation and product quality, accounting for about 90% of downtime. The reasons for this are essentially twofold: First, problems with the monofilament itself. Differences in performance indicators due to process variations in the monofilament production process, such as linear density, tensile strength, and elongation, can occur by more than 5%. Second, damage to the monofilament occurs at various stages of the circular loom weaving process. Utility Model Content

[0004] Technical objective: In order to overcome the shortcomings of the existing technology, this utility model provides a single warp tension synchronization device.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a single warp tension synchronization device, which includes a warp frame, on which warp threads are placed, and a warp dividing plate is provided at one end of the warp frame; a pair of pressure rods are symmetrically arranged on the center line of one outer end of the warp frame and the other end of the pressure rods is provided with a front guide roller, on which multiple longitudinal rubber strips are evenly distributed, and the rubber strips and the smooth surface of the front guide roller opposite to them are alternately distributed; a warp feed roller is provided on one side of the front guide roller, a motor is provided on one longitudinal side of the warp feed roller, a rear guide roller is provided on the other side of the warp feed roller, a detection roller is provided on one side of the rear guide roller, and a weighing sensor is provided at the other end of the detection roller.

[0006] Preferably, a bearing is connected between the detection roller and the weighing sensor.

[0007] Preferably, the weighing sensor is electrically connected to an amplifier, the amplifier is electrically connected to a PLC programmable controller, the PLC programmable controller is electrically connected to a frequency converter, the frequency converter is electrically connected to a motor reducer, the motor reducer is electrically connected to the warp roller, and the warp roller is electrically connected to the weighing sensor.

[0008] Preferably, the warp yarns are wound from the bottom of the guide roller to the outside of the feed roller, the warp yarns are arranged parallel to each other at the bottom of the guide roller, and the warp yarns are arranged perpendicularly between the guide roller and the feed roller.

[0009] Preferably, a chain connects the warp feed roller and the motor. The warp threads wind from the side of the warp feed roller to the bottom of the rear guide roller. The warp threads between the warp feed roller and the rear guide roller are parallel to the warp threads between the front guide roller and the warp feed roller. The warp threads wind from the bottom of the rear guide roller to the bottom of the detection roller. The warp threads between the rear guide roller and the detection roller are perpendicular to the warp threads between the warp feed roller and the rear guide roller.

[0010] Preferably, the wire separating plate on the wire guide is provided with a wire pressing hook, the other side of the wire pressing rod is provided with a wire separating plate, and the wire pressing hook is provided between the wire separating plate and the front guide roller.

[0011] The beneficial effects of this utility model are:

[0012] This invention provides a single warp tension synchronization device. Through improvements to the front guide roller, the warp yarn can automatically compare and adjust its tension with that of surrounding yarns during operation, reducing overall warp tension error and improving the average tension accuracy of the warp yarns. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0014] Figure 1 This is a schematic diagram of the overall structure of a single warp tension synchronization device according to the present invention;

[0015] Figure 2 This is a partial structural schematic diagram of a single warp tension synchronization device according to the present invention;

[0016] Figure 3 This is a schematic diagram of the front guide roller structure of a single warp tension synchronization device according to the present invention;

[0017] Figure 4 This is a schematic diagram of the control principle of a single warp tension synchronization device according to the present invention.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Warp beam; 2. Warp yarn; 3. Divider plate; 4. Pressure rod; 5. Pressure hook; 6. Front guide roller; 7. Warp feed roller; 8. Motor; 9. Rear guide roller; 10. Detection roller; 11. Weighing sensor; 12. Bearing. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1 To be continued Figure 4The principles and features of this utility model are described, and the examples given are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0021] Please see Figures 1-4 This invention provides a single warp tension synchronization device, comprising a warp frame 1 with warp yarns 2 on it, and a yarn separating plate 3 at one end of the warp frame 1; a pair of pressure rods 4 are symmetrically arranged on the centerline of one outer end of the yarn separating plate 3 on the warp frame 1, and a front guide roller 6 is arranged at the other end of the pressure rods 4; multiple longitudinal rubber strips are evenly distributed on the front guide roller 6, and the rubber strips are alternately distributed with the smooth surface of the front guide roller 6 opposite to them; a warp feed roller 7 is arranged on one side of the front guide roller 6, and a motor 8 is arranged on one longitudinal side of the warp feed roller 7; a rear guide roller 9 is arranged on the other side of the warp feed roller 7, and a detection roller 10 is arranged on one side of the rear guide roller 9; a weighing sensor is arranged at the other end of the detection roller 10. Sensor 11; the warp yarn 2 is transmitted from the warp yarn frame 1 placed on the ground through the upper and lower yarn dividing plates 3, the pressure rod 4, the pressure hook 5, the front guide roller 6, the feed roller 7, the rear guide roller 9, and the detection roller 10 to the main machine; the pressure rod 4 and the lower yarn dividing plate 3 are fixed on the frame; the front guide roller 6 and the rear guide roller 9 are mounted on the frame with bearing seats at both ends; the feed roller 7 is also fixed on the frame with bearings at both ends, and one end is equipped with a sprocket connected to the motor 8 mounted on the same frame via a chain; the detection roller 10 is mounted on the frame with a bearing seat at one end, and the other end is mounted on one end of the weighing sensor 11 via a bearing 12, and the other end is mounted on the frame; multiple longitudinal rubber strips are evenly distributed on the front guide roller 6, and the smooth surface of the front guide roller 6 opposite to it is alternately distributed.

[0022] Please see Figures 1-4 A bearing 12 is connected between the detection roller 10 and the load cell 11; the load cell 11 detects the tension on the detection roller 10, and the bearing 12 enables the detection roller 10 to rotate independently of the load cell 11.

[0023] Please see Figures 1-4 An amplifier is electrically connected to the load cell 11, a PLC programmable controller is electrically connected to the amplifier, a frequency converter is electrically connected to the PLC programmable controller, a motor reducer is electrically connected to the frequency converter, and the motor reducer is electrically connected to the warp feed roller 7. The load cells 11 on the warp feed roller 7 are electrically connected to each other. The dynamic tension of the warp is determined by sensing the pressure of the traveling warp on the surface of the guide roller using sensor technology. The sensor signal is then analyzed by the PLC programmable controller and compared with the preset set value. The PID stabilization control system program in the PLC analyzes the comparison value and the feedback signal controls the output of the warp feed motor, which is dynamically corrected by the connected warp feed roller to realize closed-loop warp feed tension control.

[0024] Please see Figures 1-4The warp yarn 2 wraps around the outside of the guide roller 7 from the bottom of the guide roller 6. The warp yarn 2 is arranged parallel to the bottom of the guide roller 6 and vertically between the guide roller 6 and the guide roller 7. The warp yarn 2 horizontally and vertically wraps around the bottom of the guide roller 6 and between the guide roller 6 and the guide roller 7, thereby reducing the tension of the warp yarn 2 on the guide roller 6 and the guide roller 7.

[0025] Please see Figures 1-4 A chain connects the warp feed roller 7 to the motor 8. The warp yarn 2 wraps around the side of the warp feed roller 7 to the bottom of the rear guide roller 9. The warp yarn 2 between the warp feed roller 7 and the rear guide roller 9 is parallel to the warp yarn 2 between the front guide roller 6 and the warp feed roller 7. The warp yarn 2 wraps around the bottom of the rear guide roller 9 to the bottom of the detection roller 10. The warp yarn 2 between the rear guide roller 9 and the detection roller 10 is perpendicular to the warp yarn 2 between the warp feed roller 7 and the rear guide roller 9. Bearings are also installed at both ends of the warp feed roller 7 and fixed on the frame. One end is equipped with a sprocket and connected to the motor 8, which is also mounted on the frame, via a chain. The motor 8 drives the warp feed roller 7 to rotate, thereby pulling the warp yarn 2. The warp yarn 2 wraps horizontally around the detection roller 10, reducing the tension error of the detection roller 10 on the warp yarn 2.

[0026] Please see Figures 1-4 The wire separating plate 3 on the wire frame 1 is equipped with a wire pressing hook 5, and the wire separating plate 3 is provided on the other side of the wire pressing rod 4. The wire pressing hook 5 is provided between the wire separating plate 3 and the front guide roller 6.

[0027] During operation, multiple longitudinal rubber strips are evenly distributed on the guide roller 6 before the drive warp feed roller 7, alternating with the smooth surface of the guide roller 6 opposite it. Driven by overall friction, the warp yarns rotate and travel along the surface of the guide roller 6. When a warp yarn with a high tension passes through, the alternating rubber and smooth surfaces on the guide roller 6 generate different frictional forces due to differences in material and surface roughness. The magnitude of the frictional force is directly proportional to the contact pressure, which is a reflection of the monofilament tension on the surface of the guide roller 6. When the monofilament is on the rubber surface, the friction is greater, and the monofilament keeps moving synchronously with the guide roller 6, being taut. When the monofilament is on the smooth surface, the friction is less, and the sliding length of the monofilament is compensated. This results in a pulling and releasing operation of the warp yarn within the length range between the guide roller and the warp feed roller 7, gradually reducing the tension. This operation continues as the guide roller 6 rotates continuously until the tension returns to normal.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A single warp tension synchronization device, comprising a warp holder (1), characterized in that: The warp frame (1) has warp threads (2), and a splitting plate (3) is provided at one end of the warp frame (1). A pair of pressure rods (4) are symmetrically arranged on the center line of one end of the splitting plate (3) of the warp frame (1). A front guide roller (6) is provided at the other end of the pressure rod (4). Multiple longitudinal rubber strips are evenly distributed on the front guide roller (6). The rubber strips and the smooth surface of the front guide roller (6) opposite to them are alternately distributed. A warp feed roller (7) is provided on one side of the front guide roller (6). A motor (8) is provided on one longitudinal side of the warp feed roller (7). A rear guide roller (9) is provided on the other side of the warp feed roller (7). A detection roller (10) is provided on one side of the rear guide roller (9). A weighing sensor (11) is provided at the other end of the detection roller (10).

2. The single warp tension synchronization device according to claim 1, characterized in that: A bearing (12) is connected between the detection roller (10) and the weighing sensor (11).

3. The single warp tension synchronization device according to claim 2, characterized in that: The weighing sensor (11) is electrically connected to an amplifier, the amplifier is electrically connected to a PLC programmable controller, the PLC programmable controller is electrically connected to a frequency converter, the frequency converter is electrically connected to a motor reducer, the motor reducer is electrically connected to the warp roller (7), and the weighing sensor (11) on the warp roller (7) is electrically connected to each other.

4. A single warp tension synchronization device according to claim 3, characterized in that: The warp threads (2) are wound from the bottom of the front guide roller (6) to the outside of the warp feed roller (7). The warp threads (2) are arranged parallel to each other at the bottom of the front guide roller (6) and perpendicular to each other between the front guide roller (6) and the warp feed roller (7).

5. A single warp tension synchronization device according to claim 4, characterized in that: A chain connects the warp feed roller (7) to the motor (8). The warp threads (2) wrap around from the side of the warp feed roller (7) to the bottom of the rear guide roller (9). The warp threads (2) between the warp feed roller (7) and the rear guide roller (9) are parallel to the warp threads (2) between the front guide roller (6) and the warp feed roller (7). The warp threads (2) wrap around from the bottom of the rear guide roller (9) to the bottom of the detection roller (10). The warp threads (2) between the rear guide roller (9) and the detection roller (10) are perpendicular to the warp threads (2) between the warp feed roller (7) and the rear guide roller (9).

6. A single warp tension synchronization device according to claim 5, characterized in that: The warp beam (1) is provided with a wire-pressing hook (5) on the wire-separating plate (3), and the other side of the wire-pressing rod (4) is provided with a wire-separating plate (3). A wire-pressing hook (5) is provided between the wire-separating plate (3) and the front guide roller (6).

Images