A feed mechanism for an elasticizer

Abstract

The utility model relates to the technical field of elasticizer, and the utility model discloses a kind of feeding mechanism of elasticizer, including elasticizer body and the feeding mechanism being set to its one end. The feeding mechanism is sequentially provided with material discharging roll, venturi yarn guide unit and non-contact tension detection unit by support. Venturi yarn guide unit is connected with air pipe, and air pipe other end is connected with workshop compressed air source, and middle section is equipped with electrical proportional valve. Non-contact tension detection unit and electrical proportional valve are electrically connected with intelligent control unit, and form closed-loop control system. The utility model makes yarn in venturi in suspended state, whole course is without mechanical contact, fundamentally avoids yarn friction damage, significantly reduces hairiness, broken end and static electricity, especially suitable for high-end sensitive fiber. Meanwhile, the system can realize millisecond level real-time tension adjustment, control precision is high, and tension is uniform, which is beneficial to improve production efficiency, speed and product quality, and reduce maintenance cost and energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of texturing machine technology, specifically a feeding mechanism for a texturing machine. Background Technology

[0002] Texturing machines are core equipment in the chemical fiber textile industry, and the performance of their feeding mechanism directly determines the quality of the finished yarn. In existing technology, the yarn guiding mechanism of texturing machines generally uses yarn guides made of hard materials such as ceramics and alumina. During the yarn's journey, it undergoes continuous physical contact and friction with the surface of these yarn guides. This traditional method has the following inherent drawbacks:

[0003] 1. Severe yarn damage: Friction can cause fuzz on the fiber surface and even breakage of single filaments, seriously affecting the strength and appearance quality of the yarn. This type of damage is particularly fatal for high-performance or high-value-added fibers such as ultra-fine denier, spandex, and carbon fiber.

[0004] 2. Static electricity generation: High-speed friction easily generates and accumulates static electricity, leading to yarn fuzz, entanglement, increased breakage rate, and poor production stability, especially in dry environments.

[0005] 3. Lagging tension control: In the traditional method, tension detection and control are usually located after or even further away from the yarn guide. Its regulation relies on mechanical damping or roller speed correction, which is slow to respond and cannot make real-time and forward-looking precise adjustments to the yarn tension, resulting in poor tension uniformity.

[0006] 4. High component wear and maintenance costs: As a vulnerable part, the yarn guide needs to be replaced regularly, which increases downtime and maintenance costs.

[0007] Although there are some improvement solutions in the industry, such as optimizing the shape of the yarn guide or using more wear-resistant materials, none of them have been able to fundamentally get rid of the core contradiction of "contact friction".

[0008] In view of this, we propose a feeding mechanism for a texturing machine. Summary of the Invention

[0009] The purpose of this invention is to provide a feeding mechanism for a texturing machine to solve the problems mentioned in the background art.

[0010] A feeding mechanism for a texturing machine includes a texturing machine, with a feeding mechanism at one end of the texturing machine. The feeding mechanism is fixedly connected to a support and sequentially arranged a feeding roll, a venturi tube yarn guide unit, and a non-contact tension detection unit. One end of the venturi tube yarn guide unit is fixedly connected to an air pipe, and the other end of the air pipe is fixedly connected to a compressed air source in the workshop. An electro-proportional valve is fixedly connected in the middle of the air pipe. The non-contact tension detection unit is electrically connected to an intelligent control unit of the electro-proportional valve (REXROTH electro-proportional valve).

[0011] Preferably, the Venturi tube yarn guiding unit is specifically an annular nozzle with a specific vortex air passage machined inside. Its structure is not a complex, precise air cavity, but rather utilizes the Venturi effect. Compressed air enters tangentially, forming a uniform and stable rotating airflow field within the annular cavity.

[0012] Preferably, the non-contact tension detection unit is an optical tension detector (Italian BTSR sensor TS55 / D100E / IP), which is located behind the yarn output end of the venturi tube yarn guide unit. The sensor monitors the dynamic tension value of the yarn in real time in a non-contact manner and transmits the tension signal to the intelligent control unit in real time.

[0013] Preferably, the core of the intelligent control unit is a microprocessor (such as a PLC or a microcontroller), which pre-stores the target tension value required by the process. The control unit receives the real-time tension signal from the non-contact tension detection unit, compares and calculates it with the target tension value, generates control commands based on the calculation results, and sends them to the electro-proportional valve.

[0014] Preferably, the control terminal of the electro-proportional valve is electrically connected to the output terminal of the intelligent control unit, and is used to receive the control signal from the intelligent control unit and linearly adjust the compressed air pressure output to the venturi tube yarn guide unit in response to the control signal.

[0015] Preferably, the output terminal of the non-contact tension detection unit is electrically connected to the input terminal of the intelligent control unit. The intelligent control unit receives the yarn tension signal collected in real time by the non-contact tension detection unit, compares the real-time tension signal with the preset target tension value, and generates the control signal according to the comparison result. By adjusting the opening of the electro-proportional valve, a closed-loop feedback control system is formed to stabilize the yarn tension near the target tension value.

[0016] Beneficial effects

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. Completely eliminates yarn damage: Since the yarn is suspended in the center of the Venturi tube, there is no mechanical contact throughout the process, which fundamentally eliminates problems such as fuzz, breakage and static electricity caused by friction. It is especially suitable for processing various high-end and sensitive fiber materials, and the quality of finished yarn is improved.

[0019] 2. Improve production efficiency and speed: Eliminate the problems of broken ends caused by friction and static electricity, making production operation more stable and allowing the equipment to operate at higher speeds, thereby significantly improving production efficiency.

[0020] 3. Achieve precise and intelligent tension control: Innovatively integrating non-contact yarn guiding with online tension detection and closed-loop feedback control, it enables real-time fine-tuning of tension. Fast response and high control accuracy ensure uniform tension, providing core technological support for the production of ultra-high-end products.

[0021] 4. Significantly reduces maintenance costs and energy consumption: It eliminates the need for traditional, easily damaged ceramic yarn guides and their replacement costs. Furthermore, the non-contact design results in minimal operating resistance, contributing to lower overall machine energy consumption. Attached Figure Description

[0022] Figure 1 This is an overall structural diagram of the present invention.

[0023] The following are the labels in the diagram: 1. Texturing machine; 2. Feeding mechanism; 201. Unwinding roll; 202. Venturi tube yarn guiding unit; 203. Non-contact tension detection unit; 204. Air pipe; 205. Electro-proportional valve; 206. Intelligent control unit. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" 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 component 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.

[0025] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figure 1 This utility model provides a technical solution:

[0028] A feeding mechanism for a texturing machine includes a texturing machine 1. A feeding mechanism 2 is provided at one end of the texturing machine 1. A feeding roll 201, a Venturi tube yarn guide unit 202, and a non-contact tension detection unit 203 are sequentially and fixedly connected to the feeding mechanism 2 via a bracket. One end of the Venturi tube yarn guide unit 202 is fixedly connected to an air pipe 204, and the other end of the air pipe 204 is fixedly connected to a compressed air source in the workshop. An electro-proportional valve 205 is fixedly connected in the middle of the air pipe 204. The non-contact tension detection unit 203 is electrically connected to an intelligent control unit 205. 6. The Venturi tube yarn guiding unit 202 is specifically an annular nozzle with a specific vortex air passage internally processed. The non-contact tension detection unit 203 is specifically an optical tension detector, which is located behind the yarn output end of the Venturi tube yarn guiding unit 202. The core of the intelligent control unit 206 is a microprocessor, which includes a PLC or a single-chip microcomputer. The control terminal of the electro-proportional valve 205 is electrically connected to the output terminal of the intelligent control unit 206, and the output terminal of the non-contact tension detection unit 203 is electrically connected to the input terminal of the intelligent control unit 206.

[0029] Understandably, after the yarn is drawn out from the unwind roll 201, it is introduced into the yarn channel of the Venturi tube yarn guide unit 2. Compressed air is introduced from the air pipe 204, generating negative pressure in the annular nozzle, which adsorbs and pulls the yarn through. Subsequently, the yarn passes through the non-contact tension sensor 203, which detects its tension value in real time and uploads it to the intelligent control unit 206. The intelligent control unit 206 compares the measured value with the set value, calculates the control quantity, and sends a command to the electro-proportional valve 205 to dynamically adjust the air intake pressure, thereby forming a perfect closed-loop control to keep the output tension constant. In this way, the yarn can be stably introduced from the feeding mechanism 2 into the texturing machine 1.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A feeding mechanism for a texturing machine, characterized in that, The machine includes a texturing machine (1), on one side of which a smart control unit (206) is fixedly installed. At one end of the texturing machine (1) is a feeding mechanism (2). On the feeding mechanism (2), a feeding roll (201), a venturi tube yarn guide unit (202), and a non-contact tension detection unit (203) are fixedly connected in sequence via a bracket. At one end of the venturi tube yarn guide unit (202), an air pipe (204) is fixedly connected. At the other end of the air pipe (204), a compressed air source in the workshop is fixedly connected. An electric proportional valve (205) is fixedly connected in the middle of the air pipe (204).

2. The feeding mechanism of a texturing machine according to claim 1, characterized in that, The Venturi tube yarn guiding unit (202) is specifically a unit with an annular nozzle internally machined.

3. The feeding mechanism of a texturing machine according to claim 1, characterized in that, The non-contact tension detection unit (203) is specifically an optical tension detector, which is located behind the yarn output end of the venturi tube yarn guide unit (202).

4. The feeding mechanism of a texturing machine according to claim 1, characterized in that, The core of the intelligent control unit (206) is a microprocessor, which includes a PLC or a microcontroller.

5. The feeding mechanism of a texturing machine according to claim 1, characterized in that, The control terminal of the electro-proportional valve (205) is electrically connected to the output terminal of the intelligent control unit (206).

6. The feeding mechanism of a texturing machine according to claim 1, characterized in that, The output of the non-contact tension detection unit (203) is electrically connected to the input of the intelligent control unit (206).

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