A yarn tension regulating device for a two-for-one twisting machine

Abstract

This utility model relates to the field of twisting machine technology, specifically disclosing a yarn tension adjustment device for a twisting machine. The device includes a twisting machine body comprising a hollow spindle, a guide wheel, and a yarn winding device. An internal tension adjustment mechanism is provided within the twisting machine body. This mechanism includes a vertical plate fixedly connected to the inside of the twisting machine body. A support shaft is rotatably connected to the front end of the vertical plate, and a gear is fixedly connected to the outer wall of the support shaft. Through real-time detection of tension during yarn transport, the device promptly responds to tension fluctuations caused by changes in yarn bobbin diameter or yarn material differences, quickly adjusting the yarn transport path length to balance the tension. This effectively avoids problems such as yarn breakage and fiber damage due to excessive tension, and uneven yarn twisting and loose forming due to insufficient tension.

Description

Technical Field

[0001] This utility model relates to the field of twisting machine technology, and specifically discloses a yarn tension adjustment device for a twisting machine. Background Technology

[0002] The twisting machine is a key piece of equipment in the textile industry used to twist yarn. During the unwinding, conveying and twisting process of the yarn in the twisting machine, the stability of the tension directly affects the twisting quality of the yarn. If the tension is too high, it is easy to cause the yarn to stretch and break or the fibers to be damaged; if the tension is too low, problems such as uneven twisting and loose forming of the yarn will occur.

[0003] Existing yarn tension adjustment devices for doubling machines mostly use fixed counterweights or manual adjustment bolts to control tension, which has obvious limitations. On the one hand, this type of adjustment is a "static adjustment" and cannot dynamically adjust the tension according to changes in the yarn bobbin diameter during yarn unwinding (a decrease in yarn bobbin diameter will naturally increase the yarn unwinding tension) or differences in yarn material (such as the different elasticities of cotton yarn and chemical fiber yarn). Tension fluctuations are prone to occur. Therefore, a yarn tension adjustment device for doubling machines is needed to solve the above problems. Utility Model Content

[0004] This invention proposes a yarn tension adjustment device for a doubling machine. This yarn tension adjustment device can improve the yarn twisting quality by real-time detection and dynamic precise adjustment of yarn tension, avoiding various problems caused by abnormal tension. At the same time, it reduces the lag and error of manual operation by means of an automation mechanism.

[0005] This utility model is implemented as follows: a yarn tension adjustment device for a twisting machine, including a twisting machine body, the twisting machine body including a hollow spindle, a guide wheel and a yarn winding device, and a tension adjustment mechanism is provided inside the twisting machine body;

[0006] The tension adjustment mechanism includes a vertical plate fixedly connected inside the body of the twisting machine. A support shaft is rotatably connected to the front end of the vertical plate. A gear is fixedly connected to the outer wall of the support shaft. Two racks distributed vertically are meshed with the outer wall of the gear. Side plates are fixedly connected to the front ends of the two racks. Pressure sensors are installed on the opposite sides of the two side plates. Support plates are fixedly connected to the opposite sides of the two pressure sensors. Two support rods are fixedly connected to the opposite sides of the two support plates. Guide holes are opened through the upper ends of the multiple support rods. A motor with its output end fixedly connected to the support shaft is installed at the rear end of the vertical plate.

[0007] As a preferred embodiment of the yarn tension adjustment device for a twisting machine according to this utility model, the lower ends of the two side plates are fixedly connected to a horizontal plate, and the lower ends of the two support plates are respectively attached to the upper ends of the two horizontal plates.

[0008] As a preferred embodiment of the yarn tension adjustment device for a twisting machine according to this utility model, both of the rear ends of the two racks are fixedly connected to T-shaped sliders, and both T-shaped sliders are slidably connected to the vertical plate through T-shaped grooves.

[0009] As a preferred embodiment of the yarn tension adjustment device for a twisting machine according to this utility model, a limit block is fixedly connected to the opposite sides of both racks.

[0010] As a preferred embodiment of the yarn tension adjustment device for a twisting machine according to this utility model, ceramic wear-resistant rings are embedded in the inner walls of the plurality of guide holes.

[0011] As a preferred embodiment of the yarn tension adjustment device for a twisting machine according to this utility model, a controller is installed at the front end of the twisting machine body.

[0012] The beneficial effects of this utility model are:

[0013] This yarn tension regulating device for a doubling machine firstly achieves dynamic and precise adjustment of yarn tension. By detecting tension in real time during yarn transport, it promptly responds to tension fluctuations caused by changes in yarn bobbin diameter or differences in yarn material, quickly adjusting the yarn transport path length to balance the tension. This effectively avoids problems such as yarn breakage and fiber damage caused by excessive tension, and uneven yarn twisting and loose forming caused by insufficient tension, significantly improving the quality of yarn twisting. Secondly, the device relies on an automated detection and adjustment mechanism, eliminating the need for manual adjustment of counterweights or bolts, reducing the lag and error of manual operation. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0015] Figure 1 This is an overall structural diagram of a yarn tension adjustment device for a doubling machine according to the present invention.

[0016] Figure 2 This is a left-side structural view of the present invention.

[0017] Figure 3 This is the main view of the structure of this utility model.

[0018] Figure 4 This is a partial structural diagram of the present invention.

[0019] The markings in the diagram are: 1. Twisting machine body; 2. Yarn winding device; 3. Guide wheel; 4. Vertical plate; 5. Hollow spindle; 6. Support shaft; 7. Gear; 8. Rack; 9. Side plate; 10. Horizontal plate; 11. Support rod; 12. Guide hole; 13. T-slider; 14. Pressure sensor; 15. Support plate; 16. Motor; 17. Limit block. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0021] Please see Figure 1-4 A yarn tension adjustment device for a twisting machine includes a twisting machine body 1, which includes a hollow spindle 5, a guide wheel 3 and a yarn winding device 2. The twisting machine body 1 is provided with a tension adjustment mechanism inside.

[0022] The tension adjustment mechanism includes a vertical plate 4 fixedly connected inside the body 1 of the twisting machine. A support shaft 6 is rotatably connected to the front end of the vertical plate 4. A gear 7 is fixedly connected to the outer wall of the support shaft 6. Two racks 8 distributed vertically are meshed with the outer wall of the gear 7. A side plate 9 is fixedly connected to the front end of each of the two racks 8. A pressure sensor 14 is installed on the opposite side of each of the two side plates 9. A support plate 15 is fixedly connected to the opposite side of each of the two pressure sensors 14. Two support rods 11 are fixedly connected to the opposite side of each of the two support plates 15. A guide hole 12 is opened through the upper end of each of the multiple support rods 11. A motor 16 with its output end fixedly connected to the support shaft 6 is installed at the rear end of the vertical plate 4.

[0023] In this embodiment: When the yarn tension adjusting device for the doubling machine is working, the yarn first unwinds from the yarn winding device 2, passes sequentially through the guide wheel 3, the guide holes 12 on the multiple support rods 11, and then passes through the hollow spindle 5 to complete the twisting; when the yarn passes through the guide holes 12, it will generate tension on the support rods 11. This tension is transmitted to the pressure sensor 14 on the side plate 9 through the support plate 15. The pressure sensor 14 detects the pressure signal corresponding to the yarn tension in real time; when the yarn tension fluctuates due to changes in the yarn bobbin diameter (decrease in diameter leads to increased tension) or material differences, if the pressure value detected by the pressure sensor 14 exceeds or If the tension is below the preset range, the control system of the twisting machine body 1 will start the motor 16 at the rear end of the vertical plate 4. The output end of the motor 16 drives the support shaft 6 to rotate, and the gear 7 on the outer wall of the support shaft 6 rotates accordingly. The gear 7 drives the two vertically distributed racks 8 that mesh with it to move in opposite directions. The racks 8 drive the front side plate 9, pressure sensor 14, support plate 15 and support rod 11 to move synchronously, thereby adjusting the length of the yarn conveying path formed by multiple guide holes 12. When the path becomes longer, it can buffer excessive tension, and when the path is shortened, it can supplement insufficient tension, so as to stabilize the yarn tension within a suitable range and ensure the yarn quality when the hollow spindle 5 is twisted.

[0024] As a technical optimization of this utility model, the lower ends of the two side plates 9 are fixedly connected to the horizontal plates 10, and the lower ends of the two support plates 15 are respectively attached to the upper ends of the two horizontal plates 10.

[0025] In this embodiment, the horizontal plate 10 can provide vertical support for the support plate 15, preventing the tension generated when the yarn passes through the guide hole 12 from causing the support plate 15 to shift downward or wobble. This ensures that the support plate 15 always remains horizontal, allowing the pressure sensor 14 to stably receive the tension signal transmitted from the support plate 15. This prevents inaccurate pressure detection due to the positional shift of the support plate 15, which would affect the accuracy of subsequent tension adjustment.

[0026] As a technical optimization of this utility model, the rear ends of the two racks 8 are fixedly connected to T-shaped sliders 13, and the two T-shaped sliders 13 are slidably connected to the vertical plate 4 through T-shaped grooves.

[0027] In this embodiment, both T-shaped sliders 13 are slidably connected to the vertical plate 4 through T-shaped grooves, which can provide stable guidance and limit for the movement of the rack 8, ensuring the precise operation of the tension adjustment mechanism.

[0028] As a technical optimization of this utility model, the opposite sides of the two racks 8 are fixedly connected to limit blocks 17.

[0029] In this embodiment, the limiting block 17 effectively limits the movement range of the rack 8, preventing excessive movement under the drive of the gear 7 that could lead to component damage or functional failure.

[0030] As a technical optimization of this utility model, ceramic wear-resistant rings are embedded in the inner walls of multiple guide holes 12.

[0031] In this embodiment: the ceramic wear-resistant ring can improve the wear resistance of the guide hole 12. During the twisting process, the yarn needs to continuously pass through the guide hole 12, generating high-frequency friction with the hole wall. The ceramic material has high hardness and low wear resistance coefficient, which is far superior to the guide hole 12 body, and can effectively resist the hole wall wear caused by long-term friction.

[0032] As a technical optimization of this utility model, a controller is installed at the front end of the twisting machine body 1.

[0033] In this embodiment: the controller can establish an electrical connection with the pressure sensor 14 and the motor 16 in the tension adjustment mechanism. The pressure sensor 14 detects the pressure signal corresponding to the yarn tension in real time and transmits it to the controller. The controller can quickly analyze whether the signal is within the preset tension range. If tension fluctuation occurs (such as the pressure value exceeding or falling below the threshold), it can immediately send a command to the motor 16 to control the start, stop and speed of the motor 16. Then, the support rod 11 is driven by the gear 7 and rack 8 to adjust the yarn conveying path and realize the automatic adjustment of tension.

[0034] The working principle and usage process of this utility model are as follows: When the yarn tension adjustment device for the twisting machine is working, the yarn first unwinds from the yarn winding device 2, passes through the guide wheel 3 and the guide holes 12 on multiple support rods 11 in sequence, and then passes through the hollow spindle 5 to complete the twisting; when the yarn passes through the guide holes 12, it will generate tension on the support rods 11. This tension is transmitted to the pressure sensor 14 on the side plate 9 through the support plate 15. The pressure sensor 14 detects the pressure signal corresponding to the yarn tension in real time; when the yarn tension fluctuates due to changes in the diameter of the yarn bobbin (the diameter decreases, causing the tension to increase) or differences in material, if the pressure sensor 14 detects the pressure... If the force exceeds or falls below the preset range, the control system of the twisting machine body 1 will start the motor 16 at the rear end of the vertical plate 4. The output end of the motor 16 drives the support shaft 6 to rotate, and the gear 7 on the outer wall of the support shaft 6 rotates accordingly. The gear 7 drives the two vertically distributed racks 8 that mesh with it to move in opposite directions. The racks 8 drive the front side plate 9, pressure sensor 14, support plate 15 and support rod 11 to move synchronously, thereby adjusting the length of the yarn conveying path formed by multiple guide holes 12. When the path becomes longer, it can buffer excessive tension, and when the path is shortened, it can supplement insufficient tension, ultimately stabilizing the yarn tension within a suitable range and ensuring the yarn quality when the hollow spindle 5 is twisted.

[0035] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] However, the above are merely specific embodiments of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A yarn tension regulating device for a two-for-one twister comprising a two-for-one twister body (1), characterized in that: The twisting machine body (1) includes a hollow spindle (5), a guide wheel (3) and a yarn winding device (2), and a tension adjustment mechanism is provided inside the twisting machine body (1); The tension adjustment mechanism includes a vertical plate (4) fixedly connected inside the body (1) of the twisting machine. A support shaft (6) is rotatably connected to the front end of the vertical plate (4). A gear (7) is fixedly connected to the outer wall of the support shaft (6). Two racks (8) distributed vertically are meshed on the outer wall of the gear (7). A side plate (9) is fixedly connected to the front end of each of the two racks (8). A pressure sensor (14) is installed on the opposite side of each of the two side plates (9). A support plate (15) is fixedly connected to the opposite side of each of the two pressure sensors (14). Two support rods (11) are fixedly connected to the opposite side of each of the two support plates (15). A guide hole (12) is opened through the upper end of each of the multiple support rods (11). A motor (16) with its output end fixedly connected to the support shaft (6) is installed at the rear end of the vertical plate (4).

2. A yarn tension regulating device for a two-for-one twister as claimed in claim 1, characterized in that: The lower ends of the two side plates (9) are fixedly connected to the horizontal plates (10), and the lower ends of the two support plates (15) are respectively attached to the upper ends of the two horizontal plates (10).

3. A yarn tension regulating device for a two-for-one twister as claimed in claim 1, characterized in that: The rear ends of the two racks (8) are fixedly connected to T-shaped sliders (13), and the two T-shaped sliders (13) are slidably connected to the vertical plate (4) through T-shaped grooves.

4. A yarn tension regulating device for a two-for-one twister as defined in claim 1, wherein: Limiting blocks (17) are fixedly connected to the opposite sides of the two racks (8).

5. A yarn tension regulating device for a two-for-one twister as defined in claim 1, wherein: Ceramic wear-resistant rings are embedded in the inner walls of the multiple guide holes (12).

6. A yarn tension regulating device for a two-for-one twister as defined in claim 1, wherein: A controller is installed at the front end of the twisting machine body (1).

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