A yarn dyeing apparatus

Abstract

This invention relates to a yarn dyeing device, comprising an immersion tank and a dewatering mechanism disposed on one side of the immersion tank. The dewatering mechanism includes a side plate fixed to one side of the immersion tank, and a tension adjustment component and a dewatering component are respectively disposed on the surface of the side plate. The dewatering component includes a squeeze roller rotatably disposed on the side plate and an upper fixed frame and a lower water collection hopper respectively fixed on the side plate. This invention relates to the field of yarn processing technology. This yarn dyeing device, with its movable but limited-stroke movable plate, can effectively buffer the yarn while squeezing it, preventing direct impact from causing yarn breakage or significant wear. During yarn squeezing, the movable plate relieves pressure, allowing for rapid dewatering of the yarn without interfering with normal conveying.

Description

Technical Field

[0001] This invention relates to the field of yarn processing technology, specifically to a yarn dyeing device. Background Technology

[0002] Yarn is categorized into: ① Short fiber yarn, made from short fibers (natural short fibers or cut chemical fibers) through spinning, including ring-spun yarn, free-end spun yarn, and self-twisted yarn. ② Continuous filament, such as natural silk and chemical fiber filament, including twisted or untwisted, smooth filament or textured filament. ③ Yarn combining short fibers and continuous filaments, such as polyester-cotton core-spun yarn. Thread is made by twisting two or more single yarns together.

[0003] Due to market and customer demands, yarn needs to be dyed. When dyeing yarn, it is necessary to feed the yarn into a dyeing tank. However, many current dyeing equipment only have the function of dyeing. After dyeing, the yarn is squeezed out of water manually, which is time-consuming and labor-intensive, greatly reducing work efficiency.

[0004] According to the yarn dyeing equipment described in patent number CN107723962A, the water in the yarn is squeezed out by the upper and lower squeezing blocks squeezing each other during use. The multiple protrusions are designed to provide buffering between the yarns, so that the water cannot be squeezed out of the yarn all at once. Therefore, multiple protrusions and multiple limiting strips are set to squeeze the yarn multiple times. However, the following problems exist:

[0005] (1) Using the method of pressing hard from top to bottom results in low pressing efficiency and will interfere with normal conveying.

[0006] (2) The presence of multiple protrusions increases wear on the yarn surface during pressing, reducing the final product quality. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a yarn dyeing device that solves the problems mentioned above.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solution: a yarn dyeing device, including an immersion dyeing box and a dewatering mechanism disposed on one side of the immersion dyeing box, the dewatering mechanism including a side plate fixed to one side of the immersion dyeing box, and the surface of the side plate is respectively provided with a tension adjustment component and a dewatering component;

[0009] The dewatering assembly includes a squeezing roller rotatably mounted on a side plate, an upper fixed frame, and a lower water collection hopper respectively fixed to the side plate. The upper fixed frame has an inner cavity with a slot, and a movable plate is fixedly connected to the inner cavity of the slot via an elastic connecting belt. An upper limit plate is fixedly connected to the top of the upper fixed frame, and a cushioning cotton abutting against the top of the movable plate is fixedly connected to the bottom of the upper limit plate. The surface of the squeezing roller has a first protrusion and a second protrusion, the first protrusion gradually increasing in a counter-clockwise direction, and the second protrusion gradually decreasing in a counter-clockwise direction. During use, the dyed yarn is conveyed to the dewatering mechanism for squeezing and dewatering. The yarn is conveyed by a tension adjustment component and then onto the fixed frame and squeezing roller. Between the rollers, the squeezing roller rotates under the drive of the motor, causing the first protruding section to rotate upward and press the yarn upward, causing the yarn to contact the movable plate for pressing. Then, the movable plate contacts the cushioning cotton upward for buffering. Through the setting of the movable plate, which is movable but has a limited stroke, the yarn can be squeezed while effectively buffering, preventing direct impact from causing the yarn to break or cause great wear. When squeezing the yarn, the movable plate relieves the force, and the first and second air nozzles blow the squeezed water into the lower water collection hopper for collection, preventing it from adhering to the surface of the yarn again. This allows the moisture in the yarn to be fully squeezed out, resulting in higher efficiency in the next drying step.

[0010] As a further aspect of the present invention: a first air nozzle is fixed on one side of the movable plate and connected to an external air source through an air intake pipe, the first air nozzle facing the bottom of the movable plate.

[0011] As a further aspect of the present invention, the dewatering assembly also includes a second air nozzle fixed between the upper fixed frame and the lower water collection hopper and connected to an external air source, the second air nozzle facing the surface of the extrusion roller.

[0012] As a further aspect of the present invention: the tension adjustment assembly includes two upper fixed rollers rotatably disposed on the side plate and a sliding block slidably disposed between the two upper fixed rollers on the side plate. The sliding block is driven by a cylinder, and a lower movable roller driven by a motor is rotatably connected to the surface of the sliding block. The sliding block moves up and down, driving the lower movable roller to move up and down to adjust the tension force to adapt to the dewatering assembly.

[0013] As a further aspect of the present invention: multiple sets of tension adjustment components and dewatering components are provided, and they are staggered on the surface of the side plate. One tension adjustment component corresponds to one dewatering component for adaptation. When the dewatering component presses the yarn, it increases the tension on the yarn and increases the yarn stroke. At this time, the cylinder drives the sliding block to move upward to retract, leaving enough yarn length to keep the yarn in a straight state. After pressing, when the extrusion roller contacts the yarn, the sliding block moves downward to pull the yarn and increase the stroke. Repeated operation ensures that the tension on the yarn is not too large, which would cause the yarn to break.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. This invention, through the setting of a movable but limited-stroke movable plate, can effectively buffer the yarn while squeezing it, preventing direct impact from causing the yarn to break or cause significant wear. When squeezing the yarn, the movable plate relieves the force, and the yarn can be quickly dehydrated without interfering with the normal conveying state.

[0016] 2. In this invention, a tension adjustment component is matched with a dewatering component. When the dewatering component presses the yarn, it increases the tension on the yarn and increases the yarn's stroke. At this time, the cylinder drives the sliding block to move upward to contract the yarn, leaving enough yarn length to keep the yarn in a straight state. After pressing, when the extrusion roller contacts the yarn, the sliding block moves downward to pull the yarn, increasing the stroke. This repeated operation ensures that the tension on the yarn is not too great, which could cause the yarn to break. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a cross-sectional view of the upper fixing frame of the present invention;

[0019] Figure 3 This is a three-dimensional schematic diagram of the extrusion roller of the present invention;

[0020] Figure 4 For the present invention Figure 1 A magnified view of a portion of point A in the middle.

[0021] In the diagram: 1. Dyeing box; 2. Side plate; 3. Upper fixed roller; 4. Sliding block; 5. Lower movable roller; 6. Upper fixed frame; 7. Empty trough; 8. Elastic connecting belt; 9. Movable plate; 10. First air nozzle; 11. Air inlet pipe; 12. Upper limit plate; 13. Buffer cotton; 14. Squeeze roller; 15. First raised section; 16. Second raised section; 17. Lower water collection hopper; 18. Second air nozzle. Detailed Implementation

[0022] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0023] Please see Figure 1-4 The present invention provides a technical solution: a yarn dyeing device, including a dyeing tank 1 and a dewatering mechanism disposed on one side of the dyeing tank 1. The dewatering mechanism includes a side plate 2 fixed on one side of the dyeing tank 1, and a tension adjustment component and a dewatering component are respectively disposed on the surface of the side plate 2.

[0024] The dewatering assembly includes a squeezing roller 14 rotatably mounted on a side plate 2, an upper fixed frame 6, and a lower water collection hopper 17 respectively fixed on the side plate 2. The upper fixed frame 6 has an inner cavity with a slot 7. A movable plate 9 is fixedly connected to the inner cavity of the slot 7 via an elastic connecting belt 8. An upper limit plate 12 is fixedly connected to the top of the upper fixed frame 6, and a cushioning cotton 13, which abuts against the top of the movable plate 9, is fixedly connected to the bottom of the upper limit plate 12. The surface of the squeezing roller 14 has a first protrusion 15 and a second protrusion 16. The first protrusion 15 gradually rises counterclockwise, and the second protrusion 16 gradually decreases counterclockwise. During use, the dyed yarn is conveyed to the dewatering mechanism for squeezing and dewatering. After being conveyed by the tension adjustment assembly, the yarn is transported to the upper fixed frame 6 and the squeezing roller 14. Between rollers 14, the squeezing roller 14 rotates under the drive of the motor, causing the first protruding section 15 to rotate upward and press the yarn upward, causing the yarn to contact the movable plate 9 for pressing. Then the movable plate 9 contacts the buffer cotton 13 upward for cushioning. Through the setting of the movable plate 9, which is movable but has a limited stroke, the yarn can be squeezed and cushioned effectively, preventing direct impact from causing the yarn to break or cause great wear. When squeezing the yarn, the movable plate 9 relieves the force, and the first air nozzle 10 and the second air nozzle 18 blow the squeezed water into the lower water collection hopper 17 for collection, preventing secondary adhesion to the surface of the yarn, so that the moisture in the yarn is fully squeezed out, which can achieve higher efficiency in the next drying step.

[0025] A first air nozzle 10 is fixed on one side of the movable plate 9 and is connected to an external air source through an air intake pipe 11. The first air nozzle 10 faces the bottom of the movable plate 9.

[0026] The dewatering assembly also includes a second air nozzle 18 fixed between the upper fixed frame 6 and the lower water collection hopper 17 and connected to an external air source. The second air nozzle 18 faces the surface of the extrusion roller 14.

[0027] The tension adjustment assembly includes two upper fixed rollers 3 rotatably mounted on the side plate 2 and a sliding block 4 slidably mounted between the two upper fixed rollers 3 on the side plate 2. The sliding block 4 is driven by a cylinder, and a lower movable roller 5 driven by a motor is rotatably connected to the surface of the sliding block 4. The sliding block 4 moves up and down, driving the lower movable roller 5 to move up and down to adjust the tension force to adapt to the dewatering assembly.

[0028] Multiple tension adjustment components and dewatering components are provided, and they are staggered on the surface of side plate 2. One tension adjustment component corresponds to one dewatering component. When the dewatering component presses the yarn, it increases the tension on the yarn and increases the yarn stroke. At this time, the cylinder drives the sliding block 4 to move upward to retract, leaving enough yarn length to keep the yarn in a straight state. After pressing, when the circular surface of the extrusion roller 14 contacts the yarn, the sliding block 4 moves downward to pull the yarn and increase the stroke. The operation is repeated to ensure that the tension on the yarn is not too large, which would cause the yarn to break.

[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A yarn dyeing apparatus, comprising an immersion dyeing tank (1) and a dewatering mechanism disposed on one side of the immersion dyeing tank (1), characterized in that: The dewatering mechanism includes a side plate (2) fixed to one side of the dyeing tank (1), and the surface of the side plate (2) is respectively provided with a tension adjustment component and a dewatering component; The water removal assembly includes a squeezing roller (14) rotatably mounted on a side plate (2) and an upper fixing frame (6) and a lower water collection hopper (17) respectively fixed on the side plate (2). The inner cavity of the upper fixing frame (6) is provided with a slot (7). The inner cavity of the slot (7) is fixedly connected to a movable plate (9) by an elastic connecting strip (8). An upper limit plate (12) is fixedly connected to the top of the upper fixing frame (6). A buffer cotton (13) that abuts against the top of the movable plate (9) is fixedly connected to the bottom of the upper limit plate (12). The surface of the squeezing roller (14) is provided with a first protrusion (15) and a second protrusion (16). The first protrusion (15) gradually rises in a counterclockwise direction, and the second protrusion (16) gradually decreases in a counterclockwise direction. The movable plate (9) has one A first air nozzle (10) is fixed on the side and connected to an external air source through an air inlet pipe (11). The first air nozzle (10) faces the bottom of the movable plate (9). The water removal assembly also includes a second air nozzle (18) fixed between the upper fixed frame (6) and the lower water collection hopper (17) and connected to an external air source. The second air nozzle (18) faces the surface of the extrusion roller (14). The tension adjustment assembly includes two upper fixed rollers (3) rotatably arranged on the side plate (2) and a sliding block (4) slidably arranged between the two upper fixed rollers (3) on the side plate (2). The sliding block (4) is driven by a cylinder. The surface of the sliding block (4) is rotatably connected to a lower movable roller (5) driven by a motor. Multiple sets of tension adjustment assembly and water removal assembly are provided and are staggered on the surface of the side plate (2).

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