Polyamide fiber composite filament manufacturing method and manufacturing equipment

Abstract

The invention belongs to the technical field of composite fiber manufacturing, and discloses a polyamide fiber composite filament manufacturing method and a polyamide fiber composite filament manufacturing device.The polyamide fiber composite filament manufacturing method comprises the following steps that S1, component A fiber filaments sequentially wind around a first roller and a second roller, component B fiber filaments sequentially wind around a third roller and a fourth roller, the component A cellosilk bypassing the second roller and the component B cellosilk bypassing the fourth roller are compounded by a compounding roller, then are combined and interlaced by an interlacing nozzle, are treated by a roller loosening device, and are heated and shaped by a hot box; s2, enabling the shaped composite filament to bypass a guide roller, then guiding the shaped composite filament by a guide roller group, and winding the shaped composite filament by a winding device to obtain a nylon elastic composite fiber filament with a stable shape; wherein a tensioning mechanism is arranged on one side of the guide roller set. According to the invention, after the component A fiber yarn and the component B fiber yarn are compositely stretched, negative overfeeding is carried out by adopting a tension relaxation roller device, so that the bi-component composite fiber is crimped and shrunk, and relatively good fluffy feeling and elasticity are generated.

Description

Technical Field

[0001] The invention relates to the technical field of composite fiber production, and in particular to a method and equipment for producing nylon fiber composite filaments. Background Art

[0002] Nylon fiber has the characteristics of high strength, high wear resistance, good elasticity and recovery. Nylon fiber composite filament refers to synthetic fiber filament processed by nylon chips through spinning process. Its chemical name is polyamide (PA), commonly known as nylon. Nylon fiber composite filament has many classifications, including FDY (fully drawn yarn), POY (pre-oriented yarn) and DTY (drawn textured yarn). Nylon fiber composite filament is widely used in clothing, home textiles, industry, and other fields.

[0003] At present, composite fiber blends are all compounded together by drawing and networking, and then formed in a hot box to form composite fiber filaments. The fibers are combined together and have poor fluffiness, so the fabrics made of the fibers are relatively stiff and do not have a fluffy, soft and comfortable feel. Therefore, it is necessary to improve the production method of composite filaments in related technologies. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a method and equipment for producing nylon fiber composite filaments.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A method for producing nylon fiber composite filaments, comprising the following steps:

[0006] S1, taking the A component fiber filaments and the B component fiber filaments from their respective corresponding feeding rollers, the A component fiber filaments are passed around the first roller and the second roller in sequence, and the B component fiber filaments are passed around the third roller and the fourth roller in sequence, the A component fiber filaments passing around the second roller and the B component fiber filaments passing around the fourth roller are compounded by a compound roller, and the combined composite filaments are combined and networked by a network nozzle, and then processed by a roller relaxation device, and then heated and formed by a hot box;

[0007] S2, the shaped composite yarn passes around the guide roller, is then guided by the guide roller group, and is finally wound up by the winding device to obtain a nylon elastic composite fiber filament with a stable shape;

[0008] Among them, a tensioning mechanism is arranged on one side of the guide roller group for keeping the composite wire passing around the guide roller taut so as to improve the product winding quality.

[0009] By adopting the above technical scheme, after the A component fiber filaments and the B component fiber filaments are compositely stretched, a tension relaxation roller device is used to perform negative overfeeding, so as to give the two-component composite fiber curling and shrinkage, thereby producing better fluffiness and elasticity.

[0010] Furthermore, the A component fiber yarn is nylon bicomponent high-low viscosity elastic fiber POY, and the B component fiber yarn is nylon gear-shaped suction and discharge filament fiber POY.

[0011] Furthermore, the setting temperature in the heat box is 0°C-220°C, the drawing rates of the A component fiber filaments and the B component fiber filaments are both 0%-200%, and the drawing rate of the composite filament after being treated by the roller relaxation device is 0%-15%.

[0012] By adopting the above technical solution, the fiber filaments of component A are stretched by the first roller and the second roller, and are stretched to become drawn yarns after a certain stretching tension. The fiber filaments of component B are stretched by the third roller and the fourth roller, and are stretched to become drawn yarns after a certain stretching tension.

[0013] The present application also discloses a production device for a nylon fiber composite filament production method, including a first feeding roller for A component fiber filament, a second feeding roller for B component fiber filament, a first roller, a second roller, a third roller, a fourth roller, a composite roller, a network nozzle, a roller relaxation device, a heat box, a guide roller, a guide roller group, a winding device, a vertical plate and a tensioning mechanism, wherein two vertical plates are provided and are parallel to each other, the guide roller is rotatably installed between the two vertical plates, the guide roller group includes a first guide roller rotatably installed between the two vertical plates and a second guide roller rotatably installed between the two vertical plates, the second guide roller cooperates with the first guide roller and clamps the composite filament transmitted through the guide roller, the winding device is arranged between the two vertical plates and is used to wind up the composite filament transmitted through the guide roller group, and the tensioning mechanism is arranged between the two vertical plates and is used to tension the composite filament transmitted through the guide roller.

[0014] The cam is an assembly made of a plurality of springs, each of which is connected to a pair of camshafts, each of which is connected to a pair of linking members, each of which is connected to a pair of linking members. The cam is an assembly made of a plurality of springs, each of which is connected to a pair of linking members. The cam is an assembly made of a plurality of springs, each of which is connected to a pair of linking members. The cam is an assembly made of a plurality of springs, each of which is connected to a pair of linking members.

[0015] The end of the first connecting rod away from the sliding block is hinged to the bottom of the upper mounting rod, the middle section of the lower mounting rod is hinged to the lower end of the second connecting rod, and the end of the lower mounting rod away from the lower tensioning roller is hinged to the side wall of the connecting plate close to the guide roller.

[0016] By adopting the above technical scheme, the second guide roller cooperates with the first guide roller and clamps the composite wire transmitted through the guide roller, and the winding device winds up the composite wire transmitted from the guide roller group. In this process, due to the elastic force of the first spring, the parallelogram structure formed by the upper mounting rod, the second connecting rod, the lower mounting rod and the connecting plate is continuously deformed, and the upper tensioning roller and the lower tensioning roller cooperate and press against the composite wire transmitted through the guide roller, thereby ensuring the winding quality of the composite wire by the winding device.

[0017] Furthermore, the auxiliary component includes a horizontal plate fixed to the bottom of the connecting plate, a vertical rod penetrating the horizontal plate and slidingly cooperating with the horizontal plate, a transmission ball fixed to the upper end of the vertical rod, an arc-shaped plate body fixed to the lower end of the transmission ball and cooperating with the top of the second guide roller, and a second spring sleeved on the vertical rod, the upper and lower ends of the second spring are respectively pressed against the bottom of the horizontal plate and the top of the arc-shaped plate body, and the top of the transmission ball is pressed against the bottom of the lower mounting rod.

[0018] By adopting the above technical solution, under the elastic force of the second spring, the top of the transmission ball is pressed against the bottom of the lower mounting rod. When the supply speed of the composite wire is fast, the winding speed of the winding device cannot react in time, and the composite wire tends to be loose. The second guide roller and the first guide roller tension the composite wire under the elastic force of the first spring to ensure the winding quality of the composite wire by the winding device. When the supply speed of the composite wire is normal and the winding device is full of products for rewinding, the composite wire is straightened and acts on the second guide roller and the first guide roller, so that the first spring is compressed, so that the lower mounting rod is pressed against the transmission ball downward, so that the second spring is compressed, and the bottom of the arc plate is attached to and pressed against the top of the second guide roller, so as to limit the rotation of the second guide roller and stop feeding to the winding device so as to carry out the rewinding work.

[0019] Furthermore, the cross-sections of the sliding block and the vertical slide groove are both isosceles trapezoidal, and the width of the vertical slide groove on a side away from the guide roller is greater than the width of the vertical slide groove on a side close to the guide roller.

[0020] By adopting the above technical solution, the situation where the sliding block is separated from the vertical sliding groove is avoided.

[0021] Furthermore, the cross section of the vertical rod is rectangular.

[0022] By adopting the above technical solution, the stability of the arc-shaped plate body during the lifting process is ensured, so that the arc-shaped plate body always maintains a state of cooperation with the second guide roller.

[0023] In summary, the present invention has the following beneficial effects:

[0024] 1. After the A component fiber and the B component fiber are compositely stretched, a tension relaxation roller device is used to perform negative overfeeding, so as to give the two-component composite fiber a curling contraction and produce a better fluffy feeling and elasticity;

[0025] 2. In the present application, the second guide roller cooperates with the first guide roller and clamps the composite wire transmitted through the guide roller, and the winding device winds up the composite wire transmitted through the guide roller group. During this process, due to the elastic force of the first spring, the parallelogram structure formed by the upper mounting rod, the second connecting rod, the lower mounting rod and the connecting plate is continuously deformed, and the upper tensioning roller and the lower tensioning roller cooperate and press against the composite wire transmitted through the guide roller, thereby ensuring the winding quality of the composite wire by the winding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of an embodiment of the present invention due to highlighting the connection plate and its connection structure;

[0028] Figure 3 yes Figure 2 A schematic diagram of the structure from another perspective;

[0029] Figure 4 is a schematic diagram of a structure for highlighting auxiliary components according to an embodiment of the present invention;

[0030] Figure 5 is a cross-sectional view of an embodiment of the present invention for highlighting a tensioning mechanism;

[0031] Figure 6 yes Figure 5 The enlarged schematic diagram of point A in the middle;

[0032] Figure 7 It is a structural schematic diagram for highlighting the tensioning mechanism according to an embodiment of the present invention.

[0033] In the figure: 1, first feeding roller; 2, second feeding roller; 3, first roller; 4, second roller; 5, third roller; 6, fourth roller; 7, compound roller; 8, network nozzle; 9, roller relaxation device; 10, hot box; 11, guide roller; 12, guide roller group; 121, first guide roller; 122, second guide roller; 13, winding device; 14, vertical plate; 15, tensioning mechanism; 151, tensioning assembly; 151 1. Sliding block; 1512. First spring; 1513. First connecting rod; 1514. Upper mounting rod; 1515. Upper tensioning roller; 1516. Second connecting rod; 1517. Lower mounting rod; 1518. Lower tensioning roller; 152. Auxiliary component; 1521. Transverse plate; 1522. Vertical rod; 1523. Transmission ball; 1524. Arc plate; 1525. Second spring; 16. Connecting plate; 161. Vertical slide groove. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0035] like Figure 1-7 As shown, the embodiment of the present application discloses a method for producing nylon fiber composite filaments, comprising the following steps:

[0036] S1, taking the A component fiber filament and the B component fiber filament from their respective corresponding feeding rollers, the A component fiber filament passes around the first roller 3 and the second roller 4 in sequence, and the B component fiber filament passes around the third roller 5 and the fourth roller 6 in sequence, the A component fiber filament passing around the second roller 4 and the B component fiber filament passing around the fourth roller 6 are compounded by the compound roller 7, the combined composite filaments are combined and networked by the network nozzle 8, and then processed by the roller relaxation device 9, and then heated and shaped by the hot box 10;

[0037] S2, the shaped composite yarn passes around the guide roller 11, is then guided by the guide roller group 12, and is finally wound by the winding device 13 to obtain a nylon elastic composite fiber filament with a stable shape;

[0038] A tensioning mechanism 15 (12) is provided on one side of the guide roller group 12 to keep the composite wire passing around the guide roller 11 taut to improve the product winding quality. Figure 1 not shown).

[0039] After the A component fiber filaments and the B component fiber filaments are compositely stretched, a tension relaxation roller device is used to perform negative overfeeding, so as to give the two-component composite fiber curling and shrinkage, thereby producing better fluffiness and elasticity.

[0040] In this embodiment, the A component fiber is a nylon bicomponent high-low viscosity elastic fiber POY, and the B component fiber is a nylon gear-shaped suction and discharge filament fiber POY. The setting temperature in the hot box 10 is 0°C-220°C, the drafting rate of the A component fiber and the B component fiber is 0%-200%, and the drafting rate of the composite fiber after being treated by the roller relaxation device 9 is 0%-15%.

[0041] The A component fiber filaments are stretched by the first roller 3 and the second roller 4, and are stretched to become drawn fibers after a certain stretching tension. The B component fiber filaments are stretched by the third roller 5 and the fourth roller 6, and are stretched to become drawn fibers after a certain stretching tension.

[0042] The present embodiment also discloses a manufacturing method of a nylon fiber composite filament manufacturing device, including a first feeding roller 1 for A component fiber filament, a second feeding roller 2 for B component fiber filament, a first roller 3, a second roller 4, a third roller 5, a fourth roller 6, a composite roller 7, a network nozzle 8, a roller relaxation device 9, a heat box 10, a guide roller 11, a guide roller group 12, a winding device 13, a vertical plate 14 and a tensioning mechanism 15, the vertical plate 14 is provided with two and parallel to each other, and the guide roller 11 is rotatably installed on the two vertical plates 14, the guide roller group 12 includes a first guide roller 121 rotatably installed between the two vertical plates 14 and a second guide roller 122 rotatably installed between the two vertical plates 14, the second guide roller 122 cooperates with the first guide roller 121 and clamps the composite wire transmitted through the guide roller 11, the winding device 13 is arranged between the two vertical plates 14 and is used to wind up the composite wire transmitted by the guide roller group 12, and the tensioning mechanism 15 is arranged between the two vertical plates 14 and is used to tension the composite wire transmitted through the guide roller 11.

[0043] In this embodiment, a connecting plate 16 is fixed between the side walls of the two vertical plates 14 close to each other, and a vertical slide groove 161 is provided on the side of the connecting plate 16 close to the guide roller 11. The tensioning mechanism 15 includes a tensioning component 151 and an auxiliary component 152. The tensioning component 151 includes a sliding block 1511 that slides with the inner wall of the vertical slide groove 161, a first spring 1512 fixed between the bottom surface of the sliding block 1511 and the inner bottom wall of the vertical slide groove 161, a first connecting rod 1513 hinged to the side of the sliding block 1511 close to the guide roller 11, an upper mounting rod 1514 hinged on the side wall of the connecting plate 16 close to the guide roller 11, and a first connecting rod 1513 rotatably mounted on the upper mounting rod 1514. 14 an upper tensioning roller 1515 away from one end of the connecting plate 16, a second connecting rod 1516 hinged to the middle section of the upper mounting rod 1514, a lower mounting rod 1517 hinged to the side wall of the connecting plate 16 close to the guide roller 11 and parallel to the upper mounting rod 1514, and a lower tensioning roller 1518 rotatably connected to one end of the lower mounting rod 1517 away from the connecting plate 16; one end of the first connecting rod 1513 away from the sliding block 1511 is hinged to the bottom of the upper mounting rod 1514, the middle section of the lower mounting rod 1517 is hinged to the lower end of the second connecting rod 1516, and one end of the lower mounting rod 1517 away from the lower tensioning roller 1518 is hinged to the side wall of the connecting plate 16 close to the guide roller 11.

[0044] The second guide roller 122 cooperates with the first guide roller 121 and clamps the composite wire transmitted through the guide roller 11, and the winding device 13 winds up the composite wire transmitted from the guide roller group 12. During this process, due to the elastic force of the first spring 1512, the parallelogram structure formed by the upper mounting rod 1514, the second connecting rod 1516, the lower mounting rod 1517 and the connecting plate 16 is continuously deformed, and the upper tensioning roller 1515 and the lower tensioning roller 1518 cooperate and press against the composite wire transmitted through the guide roller 11, thereby ensuring the winding quality of the composite wire by the winding device 13.

[0045] The auxiliary component 152 includes a horizontal plate 1521 fixed to the bottom of the connecting plate 16, a vertical rod 1522 penetrating the horizontal plate 1521 and slidingly matched with the horizontal plate 1521, a transmission ball 1523 fixed to the upper end of the vertical rod 1522, an arc-shaped plate body 1524 fixed to the lower end of the transmission ball 1523 and matched with the top of the second guide roller 122, and a second spring 1525 sleeved on the vertical rod 1522, the upper and lower ends of the second spring 1525 are respectively pressed against the bottom of the horizontal plate 1521 and the top of the arc-shaped plate body 1524, and the top of the transmission ball 1523 is pressed against the bottom of the lower mounting rod 1517.

[0046] Under the elastic force of the second spring 1525, the top of the transmission ball 1523 is pressed against the bottom of the lower mounting rod 1517. When the supply speed of the composite wire is fast, the winding speed of the winding device 13 cannot react in time, and the composite wire tends to loosen. The sliding block 1511 moves upward under the elastic force of the first spring 1512. Due to the parallelogram structure formed by the upper mounting rod 1514, the second connecting rod 1516, the lower mounting rod 1517 and the connecting plate 16, and the top of the transmission ball 1523 is pressed against the bottom of the lower mounting rod 1517 under the action of the second spring 1525, the second guide roller 122 and the first guide roller 121 are tensioned with the composite wire under the elastic force of the first spring 1512 to ensure the winding quality of the composite wire by the winding device 13. When the supply speed of the composite wire is normal and the winding device 13 is filled with products for changing the roll, the composite wire is straightened and acts on the second guide roller 122 and the first guide roller 121, so that the first spring 1512 is compressed, thereby causing the lower mounting rod 1517 to press downward against the transmission ball 1523, so that the second spring 1525 is compressed, and the bottom of the arc-shaped plate 1524 is in contact with and pressed against the top of the second guide roller 122, thereby limiting the rotation of the second guide roller 122 and stopping the supply of material to the winding device 13 so as to facilitate the roll changing work.

[0047] To prevent the sliding block 1511 from escaping from the vertical slide groove 161 , the cross-sections of the sliding block 1511 and the vertical slide groove 161 are both isosceles trapezoidal, and the width of the vertical slide groove 161 away from the guide roller 11 is greater than the width of the vertical slide groove 161 close to the guide roller 11 .

[0048] In order to ensure the stability of the arc-shaped plate 1524 during the lifting process, the cross section of the vertical rod 1522 is rectangular.

[0049] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A method for producing nylon fiber composite filament, characterized in that: The steps include: S1, taking the A component fiber filaments and the B component fiber filaments from their respective corresponding feeding rollers, the A component fiber filaments are passed around the first roller (3) and the second roller (4) in sequence, and the B component fiber filaments are passed around the third roller (5) and the fourth roller (6) in sequence, the A component fiber filaments passing around the second roller (4) and the B component fiber filaments passing around the fourth roller (6) are compounded by a compound roller (7), the combined composite filaments are combined and networked by a network nozzle (8), and then processed by a roller relaxation device (9), and then heated and shaped by a heat box (10); S2, the shaped composite yarn passes around the guide roller (11), is then guided by the guide roller group (12), and is finally wound by the winding device (13), thereby obtaining a nylon elastic composite fiber filament with a stable shape; A tensioning mechanism (15) is provided on one side of the guide roller group (12) for keeping the composite wire that passes around the guide roller (11) tensioned so as to improve the product winding quality.

2. The method for producing nylon fiber composite filament according to claim 1, characterized in that: The A-component fiber yarn is nylon bicomponent high-low-viscosity elastic fiber POY, and the B-component fiber yarn is nylon gear-shaped suction and discharge filament fiber POY.

3. The method for producing nylon fiber composite filament according to claim 2, characterized in that: The setting temperature in the hot box (10) is 0°C-220°C, the drafting rates of the A component fiber filaments and the B component fiber filaments are both 0%-200%, and the drafting rate of the composite filament after being treated by the roller relaxation device (9) is 0%-15%.

4. A manufacturing device for the nylon fiber composite filament manufacturing method according to any one of claims 1 to 3, characterized in that: The invention comprises a first feeding roller (1) for A component fiber filaments, a second feeding roller (2) for B component fiber filaments, a first roller (3), a second roller (4), a third roller (5), a fourth roller (6), a composite roller (7), a network nozzle (8), a roller relaxation device (9), a heat box (10), a guide roller (11), a guide roller group (12), a winding device (13), a vertical plate (14) and a tensioning mechanism (15), wherein two vertical plates (14) are provided and are parallel to each other, the guide roller (11) is rotatably installed between the two vertical plates (14), and the guide roller group (12) is arranged on the vertical plate (14). 12) comprises a first guide roller (121) rotatably mounted between the two vertical plates (14) and a second guide roller (122) rotatably mounted between the two vertical plates (14), the second guide roller (122) cooperates with the first guide roller (121) and clamps the composite wire transmitted through the guide roller (11), the winding device (13) is arranged between the two vertical plates (14) and is used to wind up the composite wire transmitted from the guide roller group (12), and the tensioning mechanism (15) is arranged between the two vertical plates (14) and is used to tension the composite wire transmitted through the guide roller (11).

5. The manufacturing equipment of nylon fiber composite filament according to claim 4, characterized in that: A connecting plate (16) is fixed between the side walls of the two vertical plates (14) close to each other, and a vertical slide groove (161) is arranged on the side of the connecting plate (16) close to the guide roller (11). The tensioning mechanism (15) comprises a tensioning assembly (151) and an auxiliary assembly (152). The tensioning assembly (151) comprises a sliding block (1511) slidably matched with the inner wall of the vertical slide groove (161), a first spring (1512) fixed between the bottom surface of the sliding block (1511) and the inner bottom wall of the vertical slide groove (161), and a first spring (1512) hinged to the side of the sliding block (1511) close to the guide roller (11). A connecting rod (1513), an upper mounting rod (1514) hinged on the side wall of the connecting plate (16) close to the guide roller (11), an upper tensioning roller (1515) rotatably mounted on the end of the upper mounting rod (1514) away from the connecting plate (16), a second connecting rod (1516) hinged to the middle section of the upper mounting rod (1514), a lower mounting rod (1517) hinged on the side wall of the connecting plate (16) close to the guide roller (11) and parallel to the upper mounting rod (1514), and a lower tensioning roller (1518) rotatably connected to the end of the lower mounting rod (1517) away from the connecting plate (16); The end of the first connecting rod (1513) away from the sliding block (1511) is hinged to the bottom of the upper mounting rod (1514), the middle section of the lower mounting rod (1517) is hinged to the lower end of the second connecting rod (1516), and the end of the lower mounting rod (1517) away from the lower tensioning roller (1518) is hinged to the side wall of the connecting plate (16) close to the guide roller (11).

6. The manufacturing equipment of nylon fiber composite filament according to claim 5, characterized in that: The auxiliary component (152) comprises a horizontal plate (1521) fixed to the bottom of the connecting plate (16), a vertical rod (1522) penetrating the horizontal plate (1521) and slidably matched with the horizontal plate (1521), a transmission ball (1523) fixed to the upper end of the vertical rod (1522), an arc-shaped plate (1524) fixed to the lower end of the transmission ball (1523) and matched with the top of the second guide roller (122), and a second spring (1525) sleeved on the vertical rod (1522), wherein the upper and lower ends of the second spring (1525) are respectively pressed against the bottom of the horizontal plate (1521) and the top of the arc-shaped plate (1524), and the top of the transmission ball (1523) is pressed against the bottom of the lower mounting rod (1517).

7. The manufacturing equipment of nylon fiber composite filament according to claim 6, characterized in that: The cross-sections of the sliding block (1511) and the vertical slide groove (161) are both isosceles trapezoidal, and the width of the vertical slide groove (161) on the side away from the guide roller (11) is greater than the width of the vertical slide groove (161) on the side close to the guide roller (11).

8. The manufacturing equipment of nylon fiber composite filament according to claim 4, characterized in that: The cross section of the vertical rod (1522) is rectangular.

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