Superfine denier polyester yarn constant tension control device

Abstract

The utility model relates to the technical field of polyester yarn processing, and discloses a superfine denier polyester yarn constant tension control device which comprises a base, and an unwinding mechanism, a guide mechanism and a constant tension control mechanism are installed above the base. According to the superfine denier polyester yarn constant tension control device, POY packages can be stably placed in the device through the arranged unwinding mechanism, the active unwinding effect can be achieved when the first servo motor is started, the material conveying direction can be guided through the arranged guiding mechanism, and the conveying speed is increased; the function of constant tension control and adjustment can be achieved through the arranged constant tension control mechanism, non-contact tension detection can be achieved through the ultrasonic sensor set, fiber damage is avoided, meanwhile, the detection precision is improved, a second servo motor is adopted to adjust the corresponding tension roller to rotate, and the detection precision is improved. The two tension rollers can move at the same time through the face gears arranged in a matched mode, and when materials pass through the space between the two tension rollers, the rotating speed of the tension rollers directly determines the traction speed of the materials.

Description

Technical Field

[0001] This application relates to the field of polyester filament processing technology, specifically to a constant tension control device for ultra-fine denier polyester filament. Background Technology

[0002] The development and preparation of ultra-fine denier polyester filament is at the forefront of fiber development. Currently, the development and research of this product at home and abroad are in the exploratory stage. Therefore, the development and preparation of this ultra-fine denier fiber is extremely difficult compared with existing production technologies, but its market prospects are very broad.

[0003] An existing patent (publication number: CN214141012U) discloses a constant tension control device for ultra-fine denier polyester yarn, including a machine body and a working chamber. A connecting base is fixedly installed inside the working chamber. The connecting base has a cavity inside, and two parallel pressing plates are movably installed inside the cavity. The upper end of the upper pressing plate is fixedly connected to a hydraulic cylinder, which is fixedly inserted through the connecting base. The lower end of the lower pressing plate is fixedly connected to an operating rod, which movably inserts through the connecting base and the working chamber. The operating rod has a threaded device. A twist-stopping guide is provided on one side of the connecting base. The twist-stopping guide is fixedly connected to the discharge port, which is fixedly inserted through the working chamber. When the material enters the cylindrical guide located inside the feed pipe through the threaded structure on the rotating wheel, the pressure of the pressing plate is adjusted by adjusting the tightness of the operating rod. When the material passes through the pressing plate and reaches the discharge port fixedly connected to the twist-stopping guide, the constant tension control process is completed.

[0004] The aforementioned comparative documents use manual adjustment of the operating lever to adjust the pressure of the pressure plate, thereby achieving the effect of constant tension control. However, the precision of manual adjustment is not high, and it cannot guarantee that the tension is controlled within a more precise range. To solve the above problems, a constant tension control device for ultra-fine denier polyester yarn is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a constant tension control device for ultrafine denier polyester yarn. By adjusting the speed of a servo motor to control the speed of two tension rollers, the device can effectively ensure constant fiber tension and improve control accuracy.

[0006] To achieve the above objectives, this application provides the following technical solution: a constant tension control device for ultra-fine denier polyester yarn, comprising a base, an unwinding mechanism, a guiding mechanism, and a constant tension control mechanism mounted on the upper surface of the base, the constant tension control mechanism comprising an ultrasonic sensor group, a microcontroller, and an operator fixedly connected to the upper surface of the base, the ultrasonic sensor group and the operator being electrically connected to the microcontroller, and a fixing frame welded to the upper surface of the base.

[0007] The inner wall of the fixed frame is rotatably connected to two tension rollers. The outer surface of each tension roller is fixedly connected to a rubber coating. The shaft end of each tension roller is fixedly connected to a planar gear. The two planar gears mesh with each other. The outer surface of the fixed frame is fixedly connected to a second servo motor electrically connected to a single-chip microcomputer. The output shaft end of the second servo motor is fixedly connected to the shaft end of the corresponding tension roller.

[0008] The above scheme guides the material conveying direction through a guiding mechanism, and the constant tension control mechanism enables constant tension control and adjustment. The ultrasonic sensor group enables non-contact tension detection, avoiding damage to the fibers and improving detection accuracy. A second servo motor rotates the corresponding tension roller, and two planar gears allow the two tension rollers to move simultaneously. When the material passes through the gap between the two rollers, the roller speed directly determines the material's traction speed. If the second servo motor speed increases, the tension roller speed increases, the material is pulled faster, and the tension increases; conversely, if the speed decreases, the tension decreases. This simple structure achieves higher control accuracy.

[0009] Furthermore, a protective plate is fixedly connected to the upper surface of the base, and the protective plate is located above the microcontroller.

[0010] The above solution, through the protective plate, can protect the microcontroller and reduce the chance of damage to the microcontroller.

[0011] Furthermore, the unwinding mechanism includes an unwinding frame fixedly connected to the upper surface of the base, an unwinding roller rotatably connected to the inner wall of the unwinding frame, a limit block fixedly connected to the outer surface of the unwinding roller, and a threaded groove provided at one end of the unwinding roller.

[0012] The above scheme, through the cooperation of the set limit blocks and threaded grooves, can facilitate the limiting effect on other components.

[0013] Furthermore, a first servo motor is fixedly connected to the outer surface of the unwinding frame. The output shaft end of the first servo motor is fixedly connected to the rotating shaft end of the unwinding roller. The first servo motor is electrically connected to a single-chip microcomputer. A POY roll is sleeved on the outside of the unwinding roller. A limit groove is opened on the inner wall of the POY roll. The limit groove is adapted to the limit block.

[0014] With the above scheme, when the first servo motor starts, it can drive the unwinding roller to rotate. When the unwinding roller rotates, the POY roll can be rotated together with the unwinding roller through the limit block and limit groove, so as to achieve stable unwinding.

[0015] Furthermore, a limiting ring is threadedly connected to the outer surface of the threaded groove, and an anti-slip sleeve is fixedly connected to the outer surface of the limiting ring.

[0016] The above solution allows for easy positioning of the POY roll by setting a limiting ring, thereby optimizing the unwinding process. The anti-slip sleeve increases the friction on the surface of the limiting ring, facilitating adjustment of its position and enabling it to accommodate POY rolls of different sizes.

[0017] Furthermore, the guiding mechanism includes two first guide rollers and a second guide roller fixedly connected to the upper surface of the base. The second guide roller is located between the two first guide rollers, and the height of the second guide roller is greater than the height of the first guide rollers.

[0018] The above method can guide the conveying of ultra-fine denier polyester filaments, making it convenient to transport materials to designated locations.

[0019] Furthermore, an anti-slip pad is fixedly connected to the bottom surface of the base, and the bottom surface of the anti-slip pad is provided with evenly distributed anti-slip patterns.

[0020] The above method can increase the friction between the base and the contact surface, thereby improving the stability of the base.

[0021] Furthermore, positioning holes are provided at all four corners of the base.

[0022] The above solution allows the base to be positioned and installed in a suitable location using the positioning holes, thereby improving overall stability.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This ultra-fine denier polyester filament constant tension control device features an unwinding mechanism that stably positions POY rolls within the device. When the first servo motor is activated, it enables active unwinding. A guiding mechanism directs the material transport, and a constant tension control mechanism adjusts the tension. An ultrasonic sensor array enables non-contact tension detection, preventing fiber damage and improving accuracy. A second servo motor rotates the corresponding tension roller, and a planar gear allows both rollers to move simultaneously. The rotational speed of the tension rollers directly determines the material's traction speed as it passes between them. Increasing the second servo motor speed accelerates the tension roller speed, resulting in faster material traction and increased tension; conversely, decreasing the speed reduces tension. This simple structure achieves high control precision. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this application;

[0026] Figure 2 This is a partial bottom view of the structure of this application;

[0027] Figure 3 This is a partial exploded structural diagram of the structure in this application;

[0028] Figure 4 This is a partial first top view of the structure of this application;

[0029] Figure 5 This is a partial second top view of the structure of this application.

[0030] In the picture:

[0031] 1. Base; 2. Unwinding mechanism; 201. Unwinding frame; 202. Unwinding roller; 203. Limiting block; 204. Threaded groove; 205. First servo motor; 206. Limiting ring; 207. Anti-slip sleeve; 3. POY roll; 4. Limiting groove; 5. Guiding mechanism; 501. First guide roller; 502. Second guide roller; 6. Constant tension control mechanism; 601. Ultrasonic sensor group; 602. Microcontroller; 603. Operator; 604. Protective plate; 605. Fixing frame; 606. Tension roller; 607. Rubber coating; 608. Planar gear; 609. Second servo motor; 7. Anti-slip pad; 8. Positioning hole. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] Please see Figure 1 , Figure 2 and Figure 3This embodiment of a constant tension control device for ultra-fine denier polyester yarn includes a base 1. An unwinding mechanism 2, a guiding mechanism 5, and a constant tension control mechanism 6 are mounted above the base 1. The unwinding mechanism 2 includes an unwinding frame 201 fixedly connected to the upper surface of the base 1. An unwinding roller 202 is rotatably connected to the inner wall of the unwinding frame 201. A limit block 203 is fixedly connected to the outer surface of the unwinding roller 202. A threaded groove 204 is provided at one end of the unwinding roller 202. The limit block 203 and the threaded groove 204 cooperate to facilitate the limiting effect on other components. A first servo motor 205 is fixedly connected to the outer surface of the unwinding frame 201. The output shaft end of the first servo motor 205 is fixedly connected to the rotating shaft end of the unwinding roller 202. The first servo motor 205 is electrically connected to a microcontroller 602. The unwinding roller 202 is externally sleeved with… There is a POY roll 3. The inner wall of the POY roll 3 has a limiting groove 4. The limiting groove 4 is adapted to the limiting block 203. When the first servo motor 205 is started, it can drive the unwinding roller 202 to rotate. When the unwinding roller 202 rotates, the POY roll 3 can rotate together with the unwinding roller 202 through the limiting block 203 and the limiting groove 4 to achieve stable unwinding. The outer surface of the threaded groove 204 is threadedly connected to the limiting ring 206. The outer surface of the limiting ring 206 is fixedly connected to the anti-slip sleeve 207. The limiting ring 206 can conveniently limit the position of the POY roll 3, thereby optimizing the unwinding process. The anti-slip sleeve 207 can increase the friction of the surface of the limiting ring 206, making it convenient to adjust the position of the limiting ring 206, thereby adapting to POY rolls 3 of different sizes.

[0034] Please see Figure 1 , Figure 2 and Figure 4 The guiding mechanism 5 includes two first guide rollers 501 and one second guide roller 502 fixedly connected to the upper surface of the base 1. The second guide roller 502 is located between the two first guide rollers 501, and the height of the second guide roller 502 is greater than the height of the first guide rollers 501. It can guide the conveying of ultra-fine denier polyester yarn, making it convenient to transport the material to the designated position. An anti-slip pad 7 is fixedly connected to the bottom surface of the base 1. The bottom surface of the anti-slip pad 7 has evenly distributed anti-slip textures, which can increase the friction between the base 1 and the contact surface, thereby improving the stability of the base 1. Positioning holes 8 are provided at the four corners of the base 1. The base 1 can be positioned and installed in a suitable position through the positioning holes 8, thereby improving the overall stability.

[0035] Please see Figure 2 , Figure 4 and Figure 5The constant tension control mechanism 6 includes an ultrasonic sensor group 601, a microcontroller 602, and an operator 603 fixedly connected to the upper surface of the base 1. Both the ultrasonic sensor group 601 and the operator 603 are electrically connected to the microcontroller 602. The ultrasonic sensor group 601 is composed of multiple ultrasonic sensors. Through the ultrasonic sensor group 601, non-contact tension detection of the ultra-fine denier polyester filament conveyed above can be achieved, avoiding damage and improving detection accuracy. The ultrasonic sensor group 601 emits ultrasonic signals and detects their reflections. The time it takes for the object to arrive is used to calculate the distance between the object and the target. In a tension control system, this principle can be used to indirectly estimate the tension of the fiber. The microcontroller 602 integrates a tension feedback algorithm to achieve fast response and precise control. The operator 603 allows the operator to easily monitor and adjust the device parameters. A protective plate 604 is fixedly connected to the upper surface of the base 1. The protective plate 604 is located above the microcontroller 602 and can protect the microcontroller 602, reducing the chance of damage to the microcontroller 602.

[0036] Please see Figure 2 , Figure 4 and Figure 5 A fixing frame 605 is welded to the upper surface of the base 1. Two tension rollers 606 are rotatably connected to the inner wall of the fixing frame 605. A rubber coating 607 is fixedly connected to the outer surface of each tension roller 606. A planar gear 608 is fixedly connected to the rotating shaft end of each tension roller 606. The two planar gears 608 mesh with each other. A second servo motor 609, electrically connected to a microcontroller 602, is fixedly connected to the outer surface of the fixing frame 605. The output shaft end of the second servo motor 609 is fixedly connected to the rotating shaft end of the corresponding tension roller 606. When the second servo motor 609 starts, it can drive the corresponding tension roller 606 to rotate. The two planar gears 608 can make the two tension rollers 606 move simultaneously, allowing them to rotate in opposite directions. The rubber coating 607 ensures that the fiber does not slip when conveyed between the two tension rollers 606. The second servo motor 609 adjusts its speed according to the control signal, driving the two tension rollers 606 to rotate synchronously, thereby changing the fiber traction speed and achieving tension regulation. By adjusting the speed of the second servo motor 609 to control the speed of the two tension rollers 606, the constant fiber tension can be effectively ensured. This design has a simple structure, high control precision, and the synchronization of the two tension rollers 606 is guaranteed by gear transmission. It is very suitable for the production needs of ultra-fine denier polyester filament. Gear transmission can ensure that the speed of the two tension rollers 606 is strictly synchronized, avoiding uneven fiber tension distribution due to speed differences. The mechanical efficiency of gear transmission is high, and it can withstand large loads, making it suitable for high-speed, continuous production.

[0037] It should be noted that the accuracy of the ultrasonic sensor group 601 needs to reach ±0.1% or higher to ensure the accuracy of the detection signal. The microcontroller 602 can introduce a fuzzy control algorithm to automatically optimize the tension control strategy based on parameters such as material properties and linear velocity. The second servo motor 609 needs to have high-precision speed control capability and fast response speed to adapt to high-speed production environments.

[0038] In this embodiment, a constant tension control device for ultra-fine denier polyester yarn allows the POY roll 3 to be stably placed in the device via an unwinding mechanism 2. When the first servo motor 205 is started, it achieves active unwinding. A guiding mechanism 5 guides the material conveying direction, and a constant tension control mechanism 6 adjusts the tension. An ultrasonic sensor group 601 enables non-contact tension detection, avoiding damage to the fibers and improving detection accuracy. A second servo motor 609 rotates the corresponding tension roller 606, and two planar gears 608 allow the two tension rollers 606 to move simultaneously. When the material passes through the gap between the two tension rollers 606, the rotational speed of the tension rollers 606 directly determines the material's traction speed. If the rotational speed of the second servo motor 609 increases, the rotational speed of the tension rollers 606 increases, the material is pulled faster, and the tension increases; conversely, if the rotational speed decreases, the tension decreases. This simple structure achieves higher control accuracy.

[0039] The working principle of the above embodiment is as follows: During use, the limiting groove 4 inside the POY roll 3 is fitted onto the outside of the limiting block 203 fixedly connected to the surface of the unwinding roller 202, and the limiting ring 206 is screwed onto one end of the unwinding roller 202, thereby achieving the effect of installing the POY roll 3 on the unwinding mechanism 2. Then, the fibers are sequentially passed around the guide mechanism 5 and then led out between the two tension rollers 606. Then, the first servo motor 205 and the second servo motor 609 can be started to perform unwinding and constant tension control. The fibers conveyed by the guide mechanism 5 will pass through the ultrasonic sensor. The material is then conveyed above group 601 and between two tension rollers 606. The ultrasonic sensor group 601 enables non-contact tension detection and transmits the data to the microcontroller 602 for analysis. The microcontroller 602 then controls the operation of the second servo motor 609. When the tension is too high, the speed of the second servo motor 609 will decrease, thereby reducing the tension. When the tension is too low, the speed of the second servo motor 609 will increase, causing the tension rollers 606 to rotate faster, thus increasing the tension. This simple structure achieves higher control precision.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A constant tension control device for ultra-fine denier polyester yarn, comprising a base (1), characterized in that: The base (1) is equipped with an unwinding mechanism (2), a guiding mechanism (5) and a constant tension control mechanism (6). The constant tension control mechanism (6) includes an ultrasonic sensor group (601), a microcontroller (602) and an operator (603) fixedly connected to the upper surface of the base (1). The ultrasonic sensor group (601) and the operator (603) are both electrically connected to the microcontroller (602). A fixing frame (605) is welded to the upper surface of the base (1). The inner wall of the fixed frame (605) is rotatably connected to two tension rollers (606). Each tension roller (606) has a rubber coating (607) fixedly connected to its outer surface. Each tension roller (606) has a planar gear (608) fixedly connected to its shaft end. The two planar gears (608) mesh with each other. The outer surface of the fixed frame (605) is fixedly connected to a second servo motor (609) electrically connected to a microcontroller (602). The output shaft end of the second servo motor (609) is fixedly connected to the shaft end of the corresponding tension roller (606).

2. The constant tension control device for ultra-fine denier polyester yarn according to claim 1, characterized in that: A protective plate (604) is fixedly connected to the upper surface of the base (1), and the protective plate (604) is located above the microcontroller (602).

3. The constant tension control device for ultra-fine denier polyester yarn according to claim 1, characterized in that: The unwinding mechanism (2) includes an unwinding frame (201) fixedly connected to the upper surface of the base (1), an unwinding roller (202) rotatably connected to the inner wall of the unwinding frame (201), a limit block (203) fixedly connected to the outer surface of the unwinding roller (202), and a threaded groove (204) opened at one end of the unwinding roller (202).

4. The constant tension control device for ultra-fine denier polyester yarn according to claim 3, characterized in that: The outer surface of the unwinding frame (201) is fixedly connected to a first servo motor (205). The output shaft end of the first servo motor (205) is fixedly connected to the rotating shaft end of the unwinding roller (202). The first servo motor (205) is electrically connected to a single-chip microcomputer (602). The unwinding roller (202) is sleeved with a POY roll (3). The inner wall of the POY roll (3) is provided with a limiting groove (4). The limiting groove (4) is adapted to the limiting block (203).

5. The constant tension control device for ultra-fine denier polyester yarn according to claim 3, characterized in that: The outer surface of the threaded groove (204) is threadedly connected to a limiting ring (206), and the outer surface of the limiting ring (206) is fixedly connected to an anti-slip sleeve (207).

6. The constant tension control device for ultra-fine denier polyester yarn according to claim 1, characterized in that: The guiding mechanism (5) includes two first guide rollers (501) and a second guide roller (502) fixedly connected to the upper surface of the base (1). The second guide roller (502) is located between the two first guide rollers (501), and the height of the second guide roller (502) is greater than the height of the first guide rollers (501).

7. The constant tension control device for ultra-fine denier polyester yarn according to claim 1, characterized in that: The base (1) is fixedly connected to an anti-slip pad (7), and the bottom surface of the anti-slip pad (7) is provided with uniformly distributed anti-slip patterns.

8. The constant tension control device for ultra-fine denier polyester yarn according to claim 1, characterized in that: Positioning holes (8) are provided at the four corners of the base (1).

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