A heat-setting device for nylon yarn

Abstract

This utility model relates to the field of nylon filament processing technology, specifically a heating and setting device for nylon filament, including a setting box, an inlet, an outlet, a feeding roller, an adjusting roller group, and a discharging roller disposed within the setting box. The feeding roller is positioned near the inlet, and the discharging roller is positioned near the outlet. The adjusting roller group is disposed between the feeding roller and the discharging roller. The bottom of the setting box has two oil tanks: one for oiling and another for oiling. One oil tank contains an oiling roller, and the second oil tank contains an oiling roller. The nylon filament bundle enters from the inlet, passes sequentially around the feeding roller, the first oiling roller, the adjusting roller group, the second oiling roller, and the discharging roller, and exits from the outlet. The adjusting roller group is used to adjust the tension of the nylon filament bundle. This utility model can automatically adjust the tension of the nylon filament during the heating and setting process, avoiding excessive or insufficient tension, and ensuring the fiber strength and dimensional stability of the formed nylon filament bundle.

Description

Technical Field

[0001] This utility model relates to the field of nylon filament processing technology, specifically to a heating and shaping device for nylon filament. Background Technology

[0002] After glass transition drawing, nylon filaments require heat setting using a heat setting device. The tension of nylon filaments must be controlled during heat setting because tension directly regulates the molecular rearrangement behavior of the fiber, thus affecting the balance of its final properties. However, existing nylon filament heat setting devices lack a tension adjustment mechanism. When the drive mechanism is too fast, excessive tension can easily cause the nylon filaments to break. Conversely, if the tension is completely relaxed (excessive tension), the molecular chains freely contract to fully release the residual internal stress from the stretching, leading to reduced strength and excessive dimensional shrinkage of the stretched nylon filaments, affecting the fiber strength and dimensional stability after the nylon filament bundle is formed. Utility Model Content

[0003] The purpose of this invention is to address the above-mentioned shortcomings by providing a heating and setting device for nylon yarn, which can automatically adjust the tension of the nylon yarn during the heating and setting process, avoiding excessive or insufficient tension, and ensuring the fiber strength and dimensional stability of the nylon yarn bundle after forming.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A heating and setting device for nylon filament includes a setting box, an inlet located on one side of the setting box, and an outlet located on the other side of the setting box. The device is characterized by: a feeding roller, an adjusting roller group, and a discharging roller disposed within the setting box; the feeding roller being positioned near the inlet, and the discharging roller near the outlet; the adjusting roller group being positioned between the feeding roller and the discharging roller; and two oil tanks located at the bottom of the setting box, one oil tank containing an oiling roller and the other oil tank containing an oiling roller. The nylon filament bundle enters from the inlet, passes sequentially around the feeding roller, the first oiling roller, the adjusting roller group, the second oiling roller, and the discharging roller, and exits from the outlet. The adjusting roller group is used to adjust the tension of the nylon filament bundle.

[0006] Furthermore, the inner wall of the shaping box is symmetrically and vertically provided with sliding grooves, and a slider is slidably connected in the sliding grooves. The sliding grooves are located between the first oil tank and the second oil tank. The adjusting roller group includes a movable roller installed on the slider, a left fixed roller and a right fixed roller located on the left and right sides of the sliding groove, a telescopic rod for connecting the top of the sliding groove and the slider, and a spring sleeved on the telescopic rod. The beginning and end of the spring are respectively connected to the top of the sliding groove and the slider.

[0007] Furthermore, the movable roller, the left fixed roller, and the right fixed roller are all heating rollers, and the heating temperature range of the heating rollers is 160~180℃.

[0008] Furthermore, an oil scraping roller is provided between the oil passing roller and the left fixed roller. There are two oil scraping rollers, which are arranged symmetrically on the left and right, and a roller gap is left between the two oil scraping rollers.

[0009] Furthermore, the feed roller is a preheating roller, and the heating temperature range of the preheating roller is 70~90℃.

[0010] Furthermore, a thread organizer is provided between the feed roller and the oiling roller.

[0011] The beneficial effects of this utility model are:

[0012] In practical applications, during use, the nylon filament bundle enters from the inlet, passes through the first oiling roller in oil tank one to apply oil for the first time, passes through the adjusting roller group to adjust the tension of the nylon filament bundle, passes through the second oiling roller in oil tank two to apply oil for the second time, and after the second oiling, the nylon filament bundle passes through the discharge roller and exits from the outlet. This utility model can automatically adjust the tension of the nylon filament during the heating and setting process, avoiding excessive or insufficient tension, and ensuring the fiber strength and dimensional stability of the nylon filament bundle after forming. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure reference numerals: 1. Shaping box; 11. Inlet; 12. Outlet; 13. Slide chute; 14. Slider; 2. Feed roller; 3. Discharge roller; 4. Oil tank 1; 41. Oil roller 1; 5. Oil tank 2; 51. Oil roller 2; 61. Movable roller; 62. Left fixed roller; 63. Right fixed roller; 64. Telescopic rod; 65. Spring; 7. Oil scraper roller; 8. Thread guide. Detailed Implementation

[0015] like Figure 1As shown, a heating and setting device for nylon filament includes a setting box 1, an inlet 11 located on one side of the setting box 1, and an outlet 12 located on the other side of the setting box 1. The device is characterized by: a feeding roller 2, an adjusting roller group, and a discharging roller 3 disposed within the setting box 1; the feeding roller 2 being positioned near the inlet 11, and the discharging roller 3 being positioned near the outlet 12; the adjusting roller group being positioned between the feeding roller 2 and the discharging roller 3; and an oil tank 1 4 and an oil tank 2 5 disposed at the bottom of the setting box 1. An oiling roller 41 is disposed within the oil tank 1 4, and an oiling roller 2 51 is disposed within the oil tank 2 5. A nylon filament bundle 10 enters from the inlet 11, passes sequentially around the feeding roller 2, the oiling roller 41, the adjusting roller group, the oiling roller 2 51, and the discharging roller 3, and exits from the outlet 12. The adjusting roller group is used to adjust the tension of the nylon filament bundle 10.

[0016] In use, the nylon filament bundle 10 enters through inlet 11, passes through oiling roller 41 in oil tank 1 to apply oil to the nylon filament bundle 10 for the first time, passes through adjusting roller group to adjust the tension of the nylon filament bundle 10, passes through oiling roller 51 in oil tank 2 to apply oil to the nylon filament bundle 10 for the second time, and passes through discharge roller 3 to discharge from outlet 12. This utility model can automatically adjust the tension of nylon filament during the heating and setting process, avoiding excessive or insufficient tension, and ensuring the fiber strength and dimensional stability of the nylon filament bundle 10 after forming.

[0017] like Figure 1 As shown, the inner wall of the shaping box 1 is symmetrically and vertically provided with a sliding groove 13. A slider 14 is slidably connected to the sliding groove 13. The sliding groove 13 is located between the first oil tank 4 and the second oil tank 5. The adjusting roller group includes a movable roller 61 installed on the slider 14, a left fixed roller 62 and a right fixed roller 63 located on the left and right sides of the sliding groove 13, a telescopic rod 64 for connecting the top of the sliding groove 13 and the slider 14, and a spring 65 sleeved on the telescopic rod 64. The beginning and end of the spring 65 are respectively connected to the top of the sliding groove 13 and the slider 14. In this embodiment, during normal use, the tension of the nylon filament bundle 10 causes the spring 65 to be compressed by one-third. After the first oiling, the nylon filament bundle 10 passes sequentially around the left fixed roller 62, the movable roller 61, and the right fixed roller 63 before entering the oil tank 5. When the tension of the nylon filament bundle 10 is too high, the spring 65 continues to be compressed, the slider 14 moves upward, and the movable roller 61 moves closer to the space between the left fixed roller 62 and the right fixed roller 63. The travel between the movable roller 61 and the left fixed roller 62, and between the movable roller 61 and the right fixed roller 63, decreases, and the tension of the nylon filament bundle 10 decreases. When the tension of the nylon filament bundle 10 is too low, the restoring force of the spring 65 pushes the slider 14 downward, and the travel between the movable roller 61 and the left fixed roller 62, and between the movable roller 61 and the right fixed roller 63, increases, and the tension of the nylon filament bundle 10 increases.

[0018] like Figure 1 As shown, the movable roller 61, the left fixed roller 62, and the right fixed roller 63 are all heating rollers, and the heating temperature range of the heating rollers is 160~180℃. In this embodiment, when the movable roller 61, the left fixed roller 62, and the right fixed roller 63 are all heating rollers, the strength of the nylon yarn after heating and shaping can be significantly improved.

[0019] like Figure 1 As shown, an oil scraping roller 7 is provided between the oil-passing roller 41 and the left fixed roller 62. There are two oil scraping rollers 7, which are symmetrically arranged on the left and right sides, and a roller gap is left between the two oil scraping rollers 7. In this embodiment, the nylon filament bundle 10 passes through the roller gap to scrape off excess oil.

[0020] like Figure 1 As shown, the feed roller 2 is a preheating roller, and the heating temperature range of the preheating roller is 70~90℃. In this embodiment, when the feed roller 2 is a preheating roller with a temperature of 70~90℃, the heating effect of the heating roller can be significantly improved.

[0021] like Figure 1 As shown, a yarn guide 8 is provided between the feed roller 2 and the oiling roller 41; in this embodiment, the yarn guide 8 can be used to straighten the nylon filament bundle 10 before heating and shaping.

[0022] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the scope defined by this utility model.

Claims

1. A heating and setting device for nylon yarn, comprising a setting box, an inlet disposed on one side of the setting box, and an outlet disposed on the other side of the setting box, characterized in that: The shaping box contains a feed roller, an adjusting roller group, and a discharge roller. The feed roller is positioned near the inlet, and the discharge roller is positioned near the outlet. The adjusting roller group is positioned between the feed roller and the discharge roller. The bottom of the shaping box has an oil tank 1 and an oil tank 2. Oil tank 1 contains an oiling roller 1, and oil tank 2 contains an oiling roller 2. The nylon filaments enter from the inlet, pass through the feed roller, oiling roller 1, adjusting roller group, oiling roller 2, and discharge roller in sequence, and then exit from the outlet. The adjusting roller group is used to adjust the tension of the nylon filaments. The inner wall of the shaping box is symmetrically and vertically provided with sliding grooves. A slider is slidably connected in the sliding grooves. The sliding grooves are located between oil tank one and oil tank two. The adjusting roller group includes a movable roller installed on the slider, a left fixed roller and a right fixed roller set on the left and right sides of the sliding groove, a telescopic rod for connecting the top of the sliding groove and the slider, and a spring sleeved on the telescopic rod. The beginning and end of the spring are respectively connected to the top of the sliding groove and the slider. The movable roller, the left fixed roller, and the right fixed roller are all heating rollers, and the heating temperature range of the heating rollers is 160~180℃.

2. The heating and setting device for nylon yarn according to claim 1, characterized in that, An oil scraper is provided between the oil-passing roller and the left fixed roller. There are two oil scraper rollers, which are arranged symmetrically on the left and right, with a gap between them.

3. The heating and setting device for nylon yarn according to claim 1, characterized in that, The feed roller is a preheating roller, and the heating temperature range of the preheating roller is 70~90℃.

4. The heating and setting device for nylon yarn according to claim 1, characterized in that, A thread organizer is provided between the feed roller and the oiling roller.

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