A drawing device for PTFE multifilament

Abstract

The utility model discloses a kind of PTFE multi-strand multifilament drafting devices, it is related to a drafting device, including side plate, first guide rod and second guide rod are connected on side plate, second guide rod is longitudinally slidingly connected with side plate, the adjusting assembly that the longitudinal height of second guide rod end portion is arranged is adjusted, the side of second guide rod away from first guide rod is provided with tight adjusting assembly, tight adjusting assembly includes several position-adjustable displacement guide wheels, PTFE silk thread is sequentially passed over first guide rod top, second guide rod below and displacement guide wheel top.Compared with prior art, the beneficial effects of the utility model are: the utility model is simple in structure, convenient to use, the position of first guide rod and second guide rod can be adjusted according to the drafting requirement of PTFE multi-strand multifilament, the position of displacement guide wheel can also be adjusted, the different drafting requirements between multi-strand multifilament can be fully met by multidirectional adjustment, and the adaptability is significantly improved.

Description

Technical Field

[0001] This utility model relates to a drawing device, specifically a drawing device for PTFE multi-strand yarns. Background Technology

[0002] PTFE (polytetrafluoroethylene) multifilaments are increasingly widely used in high-end fields such as aerospace, electronics, and chemicals due to their excellent resistance to high and low temperatures, chemical stability, and mechanical properties. The drawing process, a key step in the production of PTFE multifilaments, directly affects the fiber's orientation, crystallinity, and mechanical strength; its drawing effect is closely related to the structural design of the production equipment.

[0003] Existing PTFE multifilament drawing devices mostly adopt a structure design with fixed guide rods and guide wheels, which can only meet the drawing requirements of a single specification or specific process parameters. In actual production, different application scenarios have different requirements for indicators such as the drawing ratio and tension uniformity of multifilaments. The adjustment mechanism of traditional devices is generally limited to simple adjustments, which has limited applicability. Equipment needs to be replaced or modified for different production needs, which increases production costs and operational complexity. Utility Model Content

[0004] The purpose of this invention is to provide a drawing device for PTFE multi-strand yarns to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A drawing device for PTFE multi-strand yarn includes a side plate, a first guide rod and a second guide rod connected to the side plate, the second guide rod being longitudinally slidably connected to the side plate, an adjustment component for adjusting the longitudinal height of the second guide rod being provided at its end, and a tension adjustment component being provided on the side of the second guide rod away from the first guide rod, the tension adjustment component including a plurality of position-adjustable displacement guide wheels, the PTFE yarn sequentially passing over the top of the first guide rod, the bottom of the second guide rod and the top of the displacement guide wheels.

[0006] As a further embodiment of this utility model: the side plate is provided with a plurality of longitudinally distributed through holes, the first guide rod is located in one of the through holes, and the end of the first guide rod is connected to a locking nut for locking the position of the first guide rod.

[0007] As a further improvement of this utility model: a longitudinal groove is provided on the side plate, and the second guide rod is slidably connected inside the longitudinal groove.

[0008] As a further embodiment of this utility model: an eccentric disk is rotatably connected to the other side of the side plate, and an outer ring is rotatably connected to the outer side of the eccentric disk. The outer ring is rotatably connected to the second guide rod through a connecting rod. A locking mechanism for locking the position of the eccentric disk is also provided on the eccentric disk.

[0009] As a further improvement of this utility model: the locking mechanism includes a locking bolt that is threadedly connected to the eccentric disc, and the locking bolt passes through the eccentric disc and locks with the side plate.

[0010] As a further improvement of this utility model: several positioning guide wheels are rotatably connected to the outer side of the second guide rod, and PTFE threads are all wrapped around the bottom of the positioning guide wheels.

[0011] As a further embodiment of this utility model: the tension adjustment assembly includes a connecting frame fixedly connected to the side plate, a slider slidably connected inside the connecting frame, a third guide rod rotatably connected to the side plate, a plurality of swing rods rotatably connected to the outer side of the third guide rod, a displacement guide wheel rotatably connected to the end of the swing rod, and an angle adjustment rod rotatably connected to the side of the swing rod, the other end of the angle adjustment rod being rotatably connected to the slider.

[0012] As a further improvement of this utility model: the side of the connecting frame is threaded with an adjusting screw, and the adjusting screw is rotatably connected to the slider.

[0013] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure and is easy to use. According to the drawing requirements of PTFE multi-strand yarn, the positions of the first guide rod and the second guide rod can be adjusted. At the same time, the position of the displacement guide wheel can also be adjusted. Through multi-directional adjustment, the multi-strand yarn can fully meet different drawing requirements, and the applicability is significantly improved. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a PTFE multi-strand yarn drawing device.

[0015] Figure 2 This is a schematic diagram of the structure of a PTFE multi-strand drawing device from another perspective.

[0016] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle.

[0017] Figure 4 This is a schematic diagram of the structure of the second guide rod in a drawing device for PTFE multi-strand yarn.

[0018] Figure 5 This is a partially enlarged view of the tension adjustment component in a drawing device for PTFE multi-strand yarns.

[0019] In the diagram: 1. Side plate; 2. First guide rod; 3. Second guide rod; 4. Adjustment assembly; 5. Tensioning adjustment assembly; 6. Displacement guide wheel; 7. Through hole; 8. Locking nut; 9. Longitudinal groove; 10. Eccentric disc; 11. Outer ring; 12. Connecting rod; 13. Locking mechanism; 14. Locking bolt; 15. Positioning guide wheel; 16. Connecting frame; 17. Slider; 18. Third guide rod; 19. Swing rod; 20. Angle adjustment rod; 21. Adjustment screw. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] Example 1: Please refer to Figures 1 to 4 A drawing device for PTFE multi-strand yarn mainly includes a side plate 1, and a first guide rod 2, a second guide rod 3 and a tension adjustment assembly 5 installed on the side plate 1. The winding path of the PTFE yarn is as follows: it passes over the top of the first guide rod 2, the bottom of the second guide rod 3 and the top of the displacement guide wheel 6 in the tension adjustment assembly 5 in sequence.

[0025] The specific structural details are as follows: Installation, locking, and initial position adjustment of the first guide rod 2: Several through holes 7 are longitudinally distributed on the side plate 1. The first guide rod 2 is inserted into one of the through holes 7, and its end is connected to a locking nut 8. By tightening the locking nut 8, the current position of the first guide rod 2 can be directly fixed. After loosening the locking nut 8, the first guide rod 2 can be flexibly inserted into different through holes 7, thereby quickly realizing the initial position adjustment of the first guide rod 2 and meeting the basic installation positioning requirements.

[0026] The sliding connection and precise height adjustment of the second guide rod 3: A longitudinal groove 9 is provided on the side plate 1, and the second guide rod 3 is slidably connected inside the longitudinal groove 9, providing a basis for longitudinal displacement adjustment. To achieve more precise height control, an adjustment component 4 for adjusting its longitudinal height is provided at the end of the second guide rod 3, and in conjunction with the eccentric disk 10 rotatably connected to the other side of the side plate 1, further fine adjustment of the height can be achieved. An outer ring 11 is rotatably connected to the outer side of the eccentric disk 10. When the eccentric disk 10 rotates, its outer ring 11 will change its position as the eccentric disk 10 moves. Since the outer ring 11 and the second guide rod 3 are rotatably connected through a connecting rod 12, the change in the position of the outer ring 11 will drive the second guide rod 3 to slide up and down along the longitudinal groove 9 through the connecting rod 12. This sliding process can achieve stepless position adjustment, allowing the second guide rod 3 to be flexibly adjusted to any position in the longitudinal groove 9. After adjustment, the final position of the second guide rod 3 needs to be locked by tightening the position of the eccentric disk 10. The locking mechanism 13 on the eccentric disk 10 includes a locking bolt 14 threadedly connected to the eccentric disk 10. The locking bolt 14 passes through the eccentric disk 10 and locks into the side plate 1, thereby fixing the position of the eccentric disk 10 and finally locking the height of the second guide rod 3. In addition, a handle is fixedly connected to the outside of the eccentric disk 10. The eccentric disk 10 can be quickly rotated through the handle, improving the ease of operation. The locking bolt 14 can be threaded onto the handle or any suitable position on the eccentric disk 10.

[0027] The positioning guide wheel 15 is set up as follows: Several positioning guide wheels 15 are rotatably connected to the outside of the second guide rod 3. The PTFE filaments are all wrapped around the bottom of the positioning guide wheel 15. Its core function is to assist in guiding the filaments and at the same time maintain the tension stability of the filaments to ensure the smoothness of the drawing process.

[0028] Example 2: This example discloses the following technical solutions based on the previous example: Please refer to... Figure 5The tension adjustment assembly 5 includes a connecting frame 16 fixedly connected to the side plate 1. A slider 17 is slidably disposed inside the connecting frame 16, and an adjusting screw 21 is threadedly connected to the side of the connecting frame 16. The adjusting screw 21 is rotatably connected to the slider 17. By rotating the adjusting screw 21, the slider 17 can be directly driven to slide smoothly along the connecting frame 16. At the same time, a third guide rod 18 is rotatably connected to the side plate 1. Several swing rods 19 are rotatably connected to the outside of the third guide rod 18. A displacement guide wheel 6 is rotatably connected to the end of the swing rod 19, and an angle adjusting rod 20 is rotatably connected to the side of the swing rod 19. The other end of the angle adjusting rod 20 is rotatably connected to the slider 17. When the slider 17 changes position under the adjustment of the adjusting screw 21, it will drive the swing rod 19 to swing around the third guide rod 18 through the angle adjusting rod 20. Then, the third guide rod 18 will drive the displacement guide wheel 6 to change the tension position, thereby realizing the fine adjustment of the tension of the thread. Furthermore, the angle adjustment rod 20 and the slider 17 can be connected by a hinge seat. The hinge seat is rotatably connected to the angle adjustment rod 20 and locked to the slider 17 by screws. After loosening the screws, the position of the hinge seat can be finely adjusted, thereby achieving the purpose of finely adjusting the displacement guide wheel 6 and further improving the accuracy of tension adjustment.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A drawing device for PTFE multi-strand yarns, comprising a side plate (1), characterized in that, A first guide rod (2) and a second guide rod (3) are connected to the side plate (1). The second guide rod (3) is longitudinally slidably connected to the side plate (1). An adjustment component (4) for adjusting the longitudinal height is provided at the end of the second guide rod (3). A tension adjustment component (5) is provided on the side of the second guide rod (3) away from the first guide rod (2). The tension adjustment component (5) includes several position-adjustable displacement guide wheels (6). PTFE threads pass around the top of the first guide rod (2), the bottom of the second guide rod (3), and the top of the displacement guide wheels (6) in sequence.

2. The PTFE multi-strand drawing device according to claim 1, characterized in that, The side plate (1) has several through holes (7) arranged longitudinally. The first guide rod (2) is located in one of the through holes (7). The end of the first guide rod (2) is connected to a locking nut (8) to lock the position of the first guide rod (2).

3. The drawing device for PTFE multifilament yarn according to claim 1, characterized in that, The side plate (1) has a longitudinal groove (9), and the second guide rod (3) is slidably connected inside the longitudinal groove (9).

4. The PTFE multi-strand drawing device according to claim 2, characterized in that, An eccentric disc (10) is rotatably connected to the other side of the side plate (1). An outer ring (11) is rotatably connected to the outer side of the eccentric disc (10). The outer ring (11) is rotatably connected to the second guide rod (3) through a connecting rod (12). A locking mechanism (13) for locking the position of the eccentric disc (10) is also provided on the eccentric disc (10).

5. The PTFE multifilament drawing device according to claim 4, characterized in that, The locking mechanism (13) includes a locking bolt (14) threadedly connected to the eccentric disc (10), and the locking bolt (14) passes through the eccentric disc (10) and locks into the side plate (1).

6. The drawing device for PTFE multifilament yarn according to claim 1, characterized in that, The second guide rod (3) is rotatably connected to several positioning guide wheels (15), and the PTFE threads all pass under the positioning guide wheels (15).

7. The drawing device for PTFE multifilament yarn according to claim 1, characterized in that, The tension adjustment assembly (5) includes a connecting frame (16) fixedly connected to the side plate (1), a slider (17) slidably connected inside the connecting frame (16), a third guide rod (18) rotatably connected on the side plate (1), a number of swing rods (19) rotatably connected to the outside of the third guide rod (18), a displacement guide wheel (6) rotatably connected to the end of the swing rod (19), and an angle adjustment rod (20) rotatably connected to the side of the swing rod (19), the other end of the angle adjustment rod (20) rotatably connected to the slider (17).

8. The drawing device for PTFE multifilament yarn according to claim 7, characterized in that, The connecting frame (16) is threadedly connected to an adjusting screw (21) on its side, and the adjusting screw (21) is rotatably connected to the slider (17).

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