Drawing and shaping structure of FDY (fully drawn yarn) filament
By designing the stretching and shaping structure of the FDY filament, and using an electric heating tube and a reciprocating pushing mechanism to heat and agitate the air between the hot rolls, the problem of temperature difference between the FDY filament on the hot rolls and the hot rolls is solved, and a more stable stretching and shaping process is achieved.
Patent Information
- Application Number
- CN202421743834.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-23
AI Technical Summary
There is a temperature difference when the FDY filament is on the hot roll and when it passes through the two hot rolls, which affects its stretching and shaping stability.
A stretched and shaped structure of FDY filament is designed, including two heat rollers, multiple electric heating pipes and a reciprocating pushing mechanism. The air between the heat rollers is heated through the electric heating pipe, and the air is agitated through the reciprocating pushing mechanism to ensure constant temperature.
The temperature difference of FDY filaments during stretching and setting is effectively reduced, the stretching and setting quality of FDY filaments is ensured, and the temperature consistency is improved.
Smart Images
Figure CN222908207U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of FDY filament processing, in particular to a stretching and setting structure for FDY filaments. Background Art
[0002] Fully drawn yarn, namely FDY, is a high-efficiency and high-level spinning processing technology developed in recent years and is still in development. The hot roll stretching process route refers to the process route of immediately stretching and setting with a hot roll after spinning and forming. In the hot roll stretching spinning process route, the screw extruder, the box body, the spinning window, etc. are the same as those in conventional spinning or high-speed spinning. The difference is that the melt stream needs to be immediately stretched after being solidified into fibers, and the stretching is carried out on the winding machine. The stretching is borne by the hot roll, and generally there are two hot rolls. The filaments coming down from the aisle first wind around the first hot roll (lower hot plate) for 8 - 10 turns to fully heat the filaments and prevent slipping during stretching. The first hot roll plays the role of stretching and heating, with a lower temperature and speed, and its speed is the spinning speed. The second hot roll plays the role of setting and heating, with a higher temperature and speed than the first hot roll. The filaments wind around it for 6 - 8 turns, also to fully heat and set and prevent slipping during stretching. The stretching is completed between the two hot rolls.
[0003] However, in the actual processing and production process, the FDY filaments are only heated by two hot rolls, but the FDY filaments cannot be heated when passing between the two hot rolls, which results in a temperature difference between when the FDY filaments are on the hot rolls and when passing between the two hot rolls, and is not conducive to the stability of the FDY filaments during stretching and setting. Therefore, a stretching and setting structure for FDY filaments is needed to meet the requirements. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the shortcoming that there is a temperature difference between when the FDY filaments are on the hot rolls and when passing between the two hot rolls in the prior art, and to provide a stretching and setting structure for FDY filaments.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] Design a stretching and setting structure for FDY filaments, including a first fixing plate, on which two driving mechanisms are fixed. On each of the two driving mechanisms, a hot roll is fixed. Both of the two hot rolls are rotatably arranged on the first fixing plate. A fixing box is fixed on the first fixing plate. The two hot rolls are arranged inside the fixing box. A box cover is sleeved on the fixing box. A plurality of fixing rods are fixed on the box cover. An electric heating tube is fixed on each fixing rod;
[0007] A plurality of fan blades are rotatably arranged on the fixing rods. Two reciprocating pushing mechanisms are symmetrically and fixedly arranged together on the fixing box and the box cover.
[0008] Preferably, two first holes are provided on the fixed box, and two second holes are provided on the box cover.
[0009] Preferably, the two second holes are respectively communicated with the two first holes.
[0010] Preferably, the reciprocating pushing mechanism includes an electric telescopic rod, the electric telescopic rod is fixed on the first fixing plate, a splicing component is fixed on the electric telescopic rod, and the splicing component is fixed on the box cover.
[0011] Preferably, the splicing component includes a second fixing plate, the second fixing plate is fixed on the electric telescopic rod, a rotating plate is rotatably provided on the second fixing plate, two baffle plates are fixed on the box cover, and the rotating plate is inserted between the two baffle plates.
[0012] The stretching and setting structure of FDY filaments proposed by the present utility model has the beneficial effects that: when the stretching and setting structure of FDY filaments is in use, multiple electric heating tubes on the box cover are used to heat the FDY filaments passing between the two hot rollers, so as to reduce the temperature difference during the stretching and setting of FDY filaments and ensure the quality of FDY filaments during stretching and setting. In addition, the reciprocatingly moving multiple electric heating tubes and multiple fan blades can also stir the air in the fixed box, making the temperature during the stretching and setting of FDY filaments in the fixed box more constant. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is the front view of the stretching and setting structure of FDY filaments proposed by the present utility model;
[0014] Figure 2 is the right view of the stretching and setting structure of FDY filaments proposed by the present utility model;
[0015] Figure 3 is the top view of the stretching and setting structure of FDY filaments proposed by the present utility model;
[0016] Figure 4 is the state diagram of the box cover of the stretching and setting structure of FDY filaments proposed by the present utility model away from the structural fixed box.
[0017] In the figure: 1, first fixing plate; 2, fixed box; 3, driving mechanism; 4, hot roller; 5, box cover; 6, first hole; 7, second hole; 8, electric heating tube; 9, fixed rod; 10, fan blade; 11, electric telescopic rod; 12, second fixing plate; 13, rotating plate; 14, baffle plate. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0019] Example 1: Reference Figures 1-3 The stretching and shaping structure of FDY filaments includes a first fixed plate 1, on which two driving mechanisms 3 are fixed, and on which two driving mechanisms 3 are fixed hot rollers 4, and the two hot rollers 4 are both rotatably arranged on the first fixed plate 1, and the two hot rollers 4 rotate at different speeds, one slow and the other fast, so that the stretching and shaping operation is completed while heating the FDY filaments, a fixed box 2 is fixed on the first fixed plate 1, and the two hot rollers 4 are arranged inside the fixed box 2, and a box cover 5 is mounted on the fixed box 2, and the box cover 5 is used to cover the fixed box 2, so as to reduce the heat loss inside the fixed box 2, and a plurality of fixed rods 9 are fixed on the box cover 5, and an electric heating tube 8 is fixed on each fixed rod 9, and the air between the two hot rollers 4 is heated at a constant temperature by the plurality of electric heating tubes 8, especially when the two hot rollers 4 are just started, the heating effect of the plurality of electric heating tubes 8 is particularly obvious.
[0020] Two first holes 6 are provided on the fixed box 2, and two second holes 7 are provided on the box cover 5. The two second holes 7 are respectively connected to the two first holes 6. After the box cover 5 is sleeved on the fixed box 2, the two first holes 6 and the two second holes 7 are provided for FDY filaments to enter and exit the fixed box 2.
[0021] When in use, the FDY filament coming down the channel first passes through the first hole 6 into the interior of the fixed box 2 and is wound around the two hot rollers 4, and finally passes through the other first hole 6 to pass through the fixed box 2, and then the box cover 5 is covered on the fixed box 2, and the FDY filament is allowed to pass through the two second holes 7 on the box cover 5. At this time, the multiple electric heating tubes 8 on the box cover 5 are arranged between the two hot rollers 4. In the process of stretching and shaping the FDY filament by the two hot rollers 4, the multiple electric heating tubes 8 on the box cover 5 are used to heat the FDY filament passing between the two hot rollers 4, thereby reducing the temperature difference of the FDY filament during stretching and shaping, thereby ensuring the quality of the FDY filament during stretching and shaping.
[0022] Embodiment 2: In Embodiment 1, although multiple electric heating tubes 8 are added to heat the FDY filaments between the two heat rollers 4, whether multiple electric heating tubes 8 or two heat rollers 4, these heat sources are fixed. During the operation of multiple electric heating tubes 8 and two heat rollers 4, the air in the fixed box 2 does not flow, which easily leads to uneven heating in the fixed box 2. Figures 1-4, as another preferred embodiment of the present utility model, the difference from Embodiment 1 is that a plurality of fan blades 10 are rotatably provided on the fixing rod 9, and two reciprocating pushing mechanisms are symmetrically and fixedly arranged together on the fixing box 2 and the box cover 5. When the two reciprocating pushing mechanisms drive the box cover 5 to reciprocate, they can drive the plurality of fan blades 10 to rotate, so as to stir the air in the fixing box 2, and then make the air in the fixing box 2 be heated more evenly.
[0023] The reciprocating pushing mechanism includes an electric telescopic rod 11. The electric telescopic rod 11 is fixed on the first fixing plate 1. A splicing component is fixed on the electric telescopic rod 11. The splicing component is fixed on the box cover 5. The splicing component can not only fix the box cover 5 on the electric telescopic rod 11, but also enable the box cover 5 to be detached from the electric telescopic rod 11 when it needs to be separated from the fixing box 2, without affecting the separation between the box cover 5 and the fixing box 2;
[0024] The splicing component includes a second fixing plate 12. The second fixing plate 12 is fixed on the electric telescopic rod 11. A rotating plate 13 is rotatably provided on the second fixing plate 12. Two baffle plates 14 are fixed on the box cover 5. The rotating plate 13 is inserted between the two baffle plates 14.
[0025] After the box cover 5 is installed on the fixing box 2, rotate the two rotating plates 13 so that each rotating plate 13 rotates between the two baffle plates 14. During use, due to the blocking of the two baffle plates 14 on the two rotating plates 13, when the electric telescopic rod 11 expands and contracts, it can drive the box cover 5 to reciprocate on the fixing box 2. When the box cover 5 needs to be removed from the fixing box 2, rotate the two rotating plates 13 again so that each rotating plate 13 rotates out of the space between the two baffle plates 14, and then directly remove the box cover 5, which will not affect the maintenance of the multiple electric heating tubes 8 and the two heating rollers 4 in the box cover 5 and the fixing box 2.
[0026] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.
Claims
1. A stretching and shaping structure for FDY filaments, comprising a first fixing plate (1), characterized in that: Two driving mechanisms (3) are fixed on the first fixed plate (1), and a heat roller (4) is fixed on each of the two driving mechanisms (3). The two heat rollers (4) are rotatably arranged on the first fixed plate (1). A fixing box (2) is fixed on the first fixed plate (1), and the two heat rollers (4) are arranged inside the fixing box (2). A box cover (5) is mounted on the fixing box (2), and a plurality of fixing rods (9) are fixed on the box cover (5), and an electric heating tube (8) is fixed on each of the fixing rods (9); The fixing rod (9) is rotatably provided with a plurality of fan blades (10), and two reciprocating pushing mechanisms are symmetrically fixed on the fixing box (2) and the box cover (5).
2. The stretching and shaping structure of FDY filament according to claim 1, characterized in that: The fixing box (2) is provided with two first holes (6), and the box cover (5) is provided with two second holes (7).
3. The stretching and shaping structure of FDY filament according to claim 2, characterized in that: The two second holes (7) are respectively connected to the two first holes (6).
4. The stretching and shaping structure of FDY filament according to claim 1, characterized in that: The reciprocating pushing mechanism comprises an electric telescopic rod (11), the electric telescopic rod (11) is fixed on the first fixing plate (1), a splicing assembly is fixed on the electric telescopic rod (11), and the splicing assembly is fixed on the box cover (5).
5. The stretching and shaping structure of FDY filament according to claim 4, characterized in that: The splicing assembly comprises a second fixed plate (12), the second fixed plate (12) being fixed on the electric telescopic rod (11), a rotating plate (13) being rotatably provided on the second fixed plate (12), two baffles (14) being fixed on the box cover (5), and the rotating plate (13) being inserted between the two baffles (14).