A heat treatment and setting device for polyester fiber yarn

Abstract

This utility model discloses a heat treatment and shaping device for polyester fiber yarn, including a drying box. A fixed frame is fixedly installed inside the drying box, and a placement plate is provided above the fixed frame. The placement plate is slidably connected to the fixed frame via a slider. A first sliding rod is fixedly installed inside the fixed frame, and the slider is slidably sleeved with the first sliding rod. A first cam is rotatably installed on the fixed frame. An installation frame is fixedly installed inside the drying box, and a movable frame is slidably installed on the installation frame. A carding frame is rotatably installed on the movable frame. Through the synergistic action of the placement plate, slider, first sliding rod, first cam, and first spring, the placement plate and the fiber yarn it carries are driven to generate controllable reciprocating vibration or oscillation inside the drying box. This dynamic treatment method effectively breaks the static structure of multi-layer stacked fiber yarn and significantly promotes the penetration and circulation of the heat medium inside the fiber layer and between different layers.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment technology for polyester fiber yarn, specifically a heat treatment and shaping device for polyester fiber yarn. Background Technology

[0002] Polyester fiber yarn (polyethylene terephthalate, PET fiber yarn) is an important synthetic fiber material, produced by melt spinning polyester chips. Heat treatment setting (such as heat relaxation and heat setting) is a key process in its production, aiming to eliminate internal stress generated during spinning and post-processing, and improve the dimensional stability, mechanical properties (such as strength and elasticity) and uniformity of subsequent dyeing of the fiber yarn.

[0003] In pursuit of processing efficiency, some existing devices employ a method of stacking multiple layers of fiber yarns and statically placing them within the heat treatment chamber. This results in the fiber yarns at the bottom and inside of the stack being covered by the upper layers, making it difficult for the heat medium (hot air or radiant heat) to effectively penetrate and act uniformly. This leads to poor heat setting of the fiber yarns in these areas, resulting in problems such as insufficient local setting and residual internal stress, which seriously affects the uniformity and quality stability of the entire batch of products. Furthermore, existing devices often lack effective dynamic combing and anti-tangling mechanisms. When the fiber yarns move in a high-temperature environment, they are highly susceptible to tangling and knotting due to tension fluctuations, inter-fiber friction, or airflow disturbances. This not only interrupts continuous production but may also cause fiber damage due to forced separation, significantly reducing production efficiency and product yield. Utility Model Content

[0004] The purpose of this invention is to provide a heat treatment and setting device for polyester fiber yarn to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat treatment and setting device for polyester fiber yarn, comprising a drying chamber, a fixed frame fixedly installed inside the drying chamber, a placement plate provided above the fixed frame, the placement plate being slidably connected to the fixed frame via a slider, a first sliding rod fixedly installed inside the fixed frame, the slider being slidably sleeved with the first sliding rod, a first cam rotatably mounted on the fixed frame, an installation frame fixedly installed inside the drying chamber, a movable frame slidably mounted on the installation frame, a carding frame rotatably mounted on the movable frame, a plurality of equidistantly distributed carding teeth fixedly installed on the carding frame, a third sliding rod fixedly installed inside the installation frame, a gear sleeved on the carding frame, and a rack slidably installed inside the movable frame, the rack meshing with the gear.

[0006] As a further preferred embodiment of this technical solution, two sets of symmetrically distributed first springs are sleeved on the first slide rod, and the two ends of the two sets of first springs are respectively fixedly connected to the first slider and the fixing frame, and the first cam is fitted to the slider.

[0007] As a further preferred embodiment of this technical solution, the movable frame is slidably sleeved with the third slide rod, and two sets of symmetrically distributed third springs are sleeved on the third slide rod, with the two ends of the two sets of third springs respectively fixedly connected to the movable frame and the mounting frame.

[0008] As a further preferred embodiment of this technical solution, a connecting rod is rotatably mounted on the movable frame, and a crank is rotatably mounted on the mounting frame, wherein the crank is rotatably connected to the end of the connecting rod away from the movable frame.

[0009] As a further preferred embodiment of this technical solution, a roller brush is rotatably mounted on the mounting frame, and the roller brush is in contact with multiple sets of combing teeth. A scraper is slidably mounted on the mounting frame, and the scraper is in contact with the roller brush. A second slide rod is fixedly mounted on the mounting frame, and a second cam is rotatably mounted on the mounting frame, and the second cam is in contact with the scraper.

[0010] As a further preferred embodiment of this technical solution, the scraper is slidably sleeved with the second slide rod, and two sets of symmetrically distributed second springs are sleeved on the second slide rod. The two ends of the two sets of second springs are respectively fixedly connected to the scraper and the mounting bracket.

[0011] This utility model provides a heat treatment and setting device for polyester fiber yarn, which has the following beneficial effects:

[0012] (1) Through the synergistic action of the placement plate, slider, first slide rod, first cam and first spring, the present invention drives the placement plate and the fiber thread it carries to generate controllable reciprocating vibration or oscillation in the drying box. This dynamic processing method effectively breaks the static structure of multi-layer stacked fiber thread, significantly promotes the penetration and circulation of heat medium (hot air or radiant heat) in the fiber layer and between different layers, and solves the problem of insufficient heating and insufficient shaping of the bottom and inner fiber thread caused by stacking and covering in the prior art. This ensures that the internal stress of the whole batch of fiber thread is eliminated more thoroughly, the dimensional stability is higher, and the mechanical properties are more uniform. Through the driving mechanism composed of the moving frame, third slide rod, third spring, crank and connecting rod, the carding frame and its multiple sets of carding teeth are driven to perform regular reciprocating motion. Simultaneously, through the meshing of gears and racks, the combing teeth can be driven to rotate during movement. This composite motion of the combing teeth can continuously and gently comb the dynamic fiber threads during the heat treatment process, dispersing the fiber bundles in real time. This effectively prevents entanglement and knotting caused by tension fluctuations, inter-fiber friction, or airflow disturbances under high-temperature environments. It greatly reduces the risk of production interruptions and equipment damage, ensuring smooth continuous and automated production, and significantly improving production efficiency and yield.

[0013] (2) By setting a roller brush that fits into the combing teeth, the roller brush can automatically remove loose fibers, hairs and impurities attached to the combing teeth during the combing teeth movement. In conjunction with the scraper driven by the second cam and guided and reset by the second slide and the second spring, the debris adhering to the surface of the roller brush can be removed in time, realizing the efficient self-cleaning of the combing mechanism. This design effectively avoids the problem of fiber residue accumulation affecting the combing effect or even causing secondary entanglement, ensuring the long-term stability and reliability of the combing anti-entanglement function, and reducing the frequency of equipment maintenance and downtime. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the fixing frame of this utility model;

[0016] Figure 3 This is a schematic diagram of the mounting bracket of this utility model;

[0017] Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point A;

[0018] Figure 5 For the present utility model Figure 3 Enlarged view of the structure at point -B;

[0019] In the diagram: 1. Drying oven; 2. Fixing frame; 3. Placement plate; 4. First slide bar; 5. First spring; 6. Slider; 7. First cam; 8. Combing frame; 9. Combing teeth; 10. Gear; 11. Rack; 12. Roller brush; 13. Scraper brush; 14. Second slide bar; 15. Second spring; 16. Second cam; 17. Moving frame; 18. Third slide bar; 19. Third spring; 20. Connecting rod; 21. Crank; 22. Mounting frame. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figures 1-5As shown, in this embodiment, a heat treatment and setting device for polyester fiber yarn includes a drying chamber 1, a fixed frame 2 fixedly installed inside the drying chamber 1, a placement plate 3 provided above the fixed frame 2, the placement plate 3 being slidably connected to the fixed frame 2 via a slider 6, a first sliding rod 4 fixedly installed inside the fixed frame 2, the slider 6 being slidably sleeved with the first sliding rod 4, a first cam 7 rotatably mounted on the fixed frame 2, an installation frame 22 fixedly installed inside the drying chamber 1, a movable frame 17 slidably mounted on the installation frame 22, a carding frame 8 rotatably mounted on the movable frame 17, a plurality of sets of equidistantly distributed carding teeth 9 fixedly installed on the carding frame 8, a third sliding rod 18 fixedly installed inside the installation frame 22, and a gear 10 sleeved on the carding frame 8. A rack 11 is slidably installed inside the movable frame 17, and the rack 11 meshes with the gear 10. Two sets of symmetrically distributed first springs 5 ​​are sleeved on the first slide rod 4. The two ends of the two sets of first springs 5 ​​are respectively fixedly connected to the first slider 6 and the fixed frame 2. The first cam 7 is fitted against the slider 6. The movable frame 17 is slidably sleeved with the third slide rod 18. Two sets of symmetrically distributed third springs 19 are sleeved on the third slide rod 18. The two ends of the two sets of third springs 19 are respectively fixedly connected to the movable frame 17 and the mounting frame 22. A connecting rod 20 is rotatably installed on the movable frame 17. A crank 21 is rotatably installed on the mounting frame 22. The crank 21 is rotatably connected to the end of the connecting rod 20 away from the movable frame 17. The connection is achieved through the placement plate 3, the slider 6, the first slide rod 4, and the first... The synergistic effect of cam 7 and first spring 5 drives the placement plate 3 and the fiber thread it carries to generate controllable reciprocating vibration or oscillation in the drying chamber 1. This dynamic processing method effectively breaks the static structure of multi-layer stacked fiber thread, significantly promotes the penetration and circulation of heat medium inside the fiber layer and between different layers, and solves the problem of insufficient heating and insufficient shaping of the bottom and inner fiber thread caused by stacking and covering in the prior art. This ensures that the internal stress of the whole batch of fiber thread is eliminated more thoroughly, the dimensional stability is higher, and the mechanical properties are more uniform. Through the driving mechanism composed of the movable frame 17, the third slide rod 18, the third spring 19, the crank 21, and the connecting rod 20, the carding frame 8 and the multiple sets of carding teeth 9 on it are driven to perform regular reciprocating motion. Simultaneously, through the meshing of gear 10 and rack 11, the combing teeth 9 can be driven to rotate during movement. This composite motion of the combing teeth 9 can continuously and gently comb the dynamic fiber threads during the heat treatment process, dispersing the fiber bundles in real time. This effectively prevents entanglement and knotting caused by tension fluctuations, inter-fiber friction, or airflow disturbances under high-temperature conditions. This greatly reduces the risk of production interruptions and equipment damage, ensures the smooth operation of continuous and automated production, and significantly improves production efficiency and yield.

[0022] like Figure 4 and Figure 5As shown, a roller brush 12 is rotatably mounted on the mounting frame 22, and the roller brush 12 is in contact with multiple sets of combing teeth 9. A scraper brush 13 is slidably mounted on the mounting frame 22, and the scraper brush 13 is in contact with the roller brush 12. A second slide rod 14 is fixedly mounted on the mounting frame 22, and a second cam 16 is rotatably mounted on the mounting frame 22. The second cam 16 is fitted with the scraper 13, and the scraper 13 is slidably sleeved with the second slide rod 14. Two sets of symmetrically distributed second springs 15 are sleeved on the second slide rod 14. The two ends of the two sets of second springs 15 are fixedly connected to the scraper 13 and the mounting bracket 22, respectively. By setting the roller brush 12 to fit with the combing teeth 9, the roller brush 12 can automatically remove loose fibers, hairs and impurities attached to the combing teeth 9 during the movement of the combing teeth 9. With the scraper 13 driven by the second cam 16 and guided and reset by the second slide rod 14 and the second spring 15, the debris adhering to the surface of the roller brush 12 can be removed in time, realizing the efficient self-cleaning of the combing mechanism. This design effectively avoids the problem of fiber residue accumulation affecting the combing effect or even causing secondary entanglement, ensuring the long-term stability and reliability of the combing anti-entanglement function, and reducing the frequency of equipment maintenance and downtime.

[0023] This utility model provides a heat treatment and shaping device for polyester fiber yarn. The specific working principle is as follows: Through the coordinated action of the placement plate 3, slider 6, first slide rod 4, first cam 7 and first spring 5, the placement plate 3 and the fiber yarn it carries are driven to generate controllable reciprocating vibration or oscillation in the drying chamber 1. This dynamic treatment method effectively breaks the static structure of multi-layer stacked fiber yarn, significantly promotes the penetration and circulation of heat medium inside the fiber layer and between different layers, and solves the problem of insufficient heating and insufficient shaping of the bottom and inner fiber yarns due to stacking and covering in the prior art. This ensures that the internal stress of the whole batch of fiber yarns is eliminated more thoroughly, the dimensional stability is higher, and the mechanical properties are more uniform. Through the driving mechanism composed of the movable frame 17, third slide rod 18, third spring 19, crank 21 and connecting rod 20, the carding frame 8 and its multiple sets of carding teeth 9 are driven to perform regular reciprocating motion. Simultaneously, through the meshing of gear 10 and rack 11, the combing teeth 9 can be driven to rotate during movement. This composite motion of the combing teeth 9 can continuously and gently comb the dynamic fiber threads during the heat treatment process, dispersing the fiber bundles in real time, effectively preventing entanglement and knotting caused by tension fluctuations, inter-fiber friction, or airflow disturbances under high-temperature conditions. This greatly reduces the risk of production interruption and equipment damage, ensures the smooth operation of continuous and automated production, and significantly improves production efficiency and yield. By setting a roller brush 12 that fits against the combing teeth 9, the roller brush 12 can automatically remove loose fibers, fuzz, and impurities attached to the combing teeth 9 during the movement of the combing teeth 9. In conjunction with the scraper brush 13 driven by the second cam 16 and guided and reset by the second slide rod 14 and the second spring 15, the debris adhering to the surface of the roller brush 12 can be removed in time, achieving efficient self-cleaning of the combing mechanism. This design effectively avoids the problem of fiber residue accumulation affecting the combing effect or even causing secondary entanglement, ensuring the long-term stability and reliability of the combing anti-entanglement function, and reducing the frequency of equipment maintenance and downtime.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat treatment and setting device for polyester fiber yarn, comprising a drying oven (1), characterized in that: A fixed frame (2) is fixedly installed inside the drying box (1). A placement plate (3) is provided above the fixed frame (2). The placement plate (3) is slidably connected to the fixed frame (2) via a slider (6). A first sliding rod (4) is fixedly installed inside the fixed frame (2). The slider (6) is slidably sleeved with the first sliding rod (4). A first cam (7) is rotatably installed on the fixed frame (2). An installation frame (22) is fixedly installed inside the drying box (1). A movable frame (17) is slidably installed on the installation frame (22). A combing frame (8) is rotatably installed on the movable frame (17). Multiple sets of equidistant combing teeth (9) are fixedly installed on the combing frame (8). A third sliding rod (18) is fixedly installed inside the installation frame (22). A gear (10) is sleeved on the combing frame (8). A rack (11) is slidably installed inside the movable frame (17). The rack (11) is meshed with the gear (10).

2. The heat treatment and setting device for polyester fiber yarn according to claim 1, characterized in that: Two sets of symmetrically distributed first springs (5) are sleeved on the first slide rod (4). The two ends of the two sets of first springs (5) are fixedly connected to the first slider (6) and the fixing frame (2) respectively. The first cam (7) is fitted to the slider (6).

3. The heat treatment and setting device for polyester fiber yarn according to claim 1, characterized in that: The movable frame (17) is slidably sleeved with the third slide rod (18). Two sets of symmetrically distributed third springs (19) are sleeved on the third slide rod (18). The two ends of the two sets of third springs (19) are fixedly connected to the movable frame (17) and the mounting frame (22), respectively.

4. The heat treatment and setting device for polyester fiber yarn according to claim 1, characterized in that: A connecting rod (20) is rotatably mounted on the movable frame (17), and a crank (21) is rotatably mounted on the mounting frame (22). The crank (21) is rotatably connected to the end of the connecting rod (20) away from the movable frame (17).

5. The heat treatment and setting device for polyester fiber yarn according to claim 1, characterized in that: A roller brush (12) is rotatably mounted on the mounting frame (22), and the roller brush (12) is in contact with multiple sets of combing teeth (9). A scraper brush (13) is slidably mounted on the mounting frame (22), and the scraper brush (13) is in contact with the roller brush (12). A second slide rod (14) is fixedly mounted on the mounting frame (22). A second cam (16) is rotatably mounted on the mounting frame (22), and the second cam (16) is in contact with the scraper brush (13).

6. The heat treatment and setting device for polyester fiber yarn according to claim 5, characterized in that: The scraper (13) is slidably sleeved with the second slide rod (14), and two sets of symmetrically distributed second springs (15) are sleeved on the second slide rod (14). The two ends of the two sets of second springs (15) are respectively fixedly connected to the scraper (13) and the mounting bracket (22).

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