Wire arranging groove drum of wire drawing machine capable of reducing edge warping and end face sinking of yarn roll and wire arranging method of wire arranging groove drum

Abstract

The invention belongs to the technical field of glass fiber yarn production equipment, and particularly relates to a wire arranging groove drum of a wire drawing machine and a wire arranging method of the wire arranging groove drum. The winding displacement groove drum comprises a positive and negative spiral groove and a steering transition groove; the steering transition groove comprises a deceleration section and an acceleration section; and the deceleration section is smoothly connected to the positive and negative spiral groove at the natural turning vertex part. According to the yarn arranging groove drum and the yarn arranging method thereof, yarn roll edge warping and end face sinking can be reduced, and the number of abrasion or collision points between the sliding shuttle and the groove drum can be reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of glass fiber yarn production equipment, and specifically relates to a wire drawing machine wire arrangement groove drum and a wire arrangement method thereof that can reduce yarn ball warping and end face depression. Background Art

[0002] See also Figure 1 In a fiberglass winding machine using a grooved drum, the yarn is pulled back and forth around a fiberglass paper drum on the main shaft by a winding shuttle on the winding drum, forming a nearly cylindrical yarn ball. The shuttle is driven by the forward and reverse spiral grooves in the winding drum. When the shuttle reaches the ends of the forward and reverse spiral grooves, it automatically reverses direction and continues winding.

[0003] The quality of the positive and negative spiral curves on the cable groove drum directly affects the forming quality of the cylindrical yarn ball, and also affects the life of the shuttle and the groove drum. It also affects the production of small-number high-end products and the speed cannot be increased, so the groove drum curve is very critical.

[0004] The forward and reverse spiral grooves at the intersection of the two ends of the cable groove barrel are generally transitioned by arc grooves to reduce wear and improve steering efficiency. The transition groove of the steering section is referred to as the steering transition groove in this application.

[0005] See also Figure 2 and Figure 3 This kind of arc transition is to connect the top intersection with a large arc, that is, the curves at both ends are shortened and connected with a large arc. This will cause the yarn to stay too much at both ends of the yarn ball, making the edges at both ends larger. Figure 4 The advantage is that the shuttle can pass through the corner smoothly and the shuttle line speed can run faster. Figure 3 It can be seen from the figure that the vertex of the center line of the transition groove trajectory formed by this transition groove shifts negatively, and the turning motion of the shuttle will have a negative drift, that is, the turning trajectory of the shuttle is located inside the natural connecting line of the positive and negative spiral grooves.

[0006] See also Figure 5 and Figure 6 This type of arc transition is on the outside of the intersection of the positive and negative spiral groove curves. That is, when approaching the intersection of the two curves, it suddenly accelerates and pulls apart, and is connected and transitioned through a small arc. In this way, although the yarn stays at both ends of the yarn ball for a short time and does not form warping, the yarn will stay at both ends of the yarn ball too little, causing the two ends to be concave. Please refer to Figure 7 , the yarn is easy to split, the shuttle barrel is easy to be damaged, and the line speed is not fast. Figure 6 It can be seen from the figure that when the vertex of the center line of the transition groove track formed by the transition groove moves positively, the steering track of the shuttle will drift positively, that is, the steering track of the shuttle is located outside the positive and negative spiral grooves. Summary of the Invention

[0007] In view of this, the present application provides a wire drawing machine wire arrangement groove drum and a wire arrangement method thereof that can reduce the warping and end face depression of yarn balls, so as to solve all or part of the technical problems described in the background technology part of this application.

[0008] The innovative ideas of this application are: 1. The steering transition groove is improved to include both a low-speed section and an acceleration section. The low-speed section is used to allow the traversing shuttle to smoothly pass through the steering vertex, and then the acceleration section is used to speed up and return to the normal spiral groove. This avoids the defects of the two existing steering methods and has the advantages of both methods. 2. The low-speed section of the steering transition groove and one of the forward and reverse spiral grooves are naturally and smoothly connected at the natural turning apex of the forward and reverse spiral grooves, so that the steering transition groove basically exists on the spiral groove in one direction, and the spiral groove naturally and smoothly connected to the steering transition groove can arrange the wires normally without forming warping or depressions; at the same time, since the steering transition groove includes both a low-speed section and an acceleration section, the warping formed in the low-speed section and the depression formed in the acceleration section can complement each other, thereby minimizing the warping of the yarn ball and the depression of the end face.

[0009] The solutions provided by this application to solve its technical problems are: A wire drawing machine cable arrangement groove drum capable of reducing yarn ball warping and end face depression, comprising a groove drum body, on which a forward spiral groove and a reverse spiral groove are provided; the forward spiral groove and the reverse spiral groove are smoothly connected at the intersection of both ends through a turning transition groove; it is characterized in that one end of the turning transition groove establishes a smooth connection with one of the forward spiral groove or the reverse spiral groove at the natural turning vertex of the forward spiral groove and the reverse spiral groove.

[0010] Preferably, the other end of the turning transition groove is smoothly connected to another spiral groove in the forward spiral groove and the reverse spiral groove that does not establish a smooth connection with the turning transition groove near the natural turning vertex.

[0011] Preferably, the actual turning vertex of the turning transition groove deviates from the midline of the forward spiral groove and the reverse spiral groove.

[0012] Preferably, the actual turning vertex of the turning transition groove deviates from the natural turning vertex of the forward spiral groove and the reverse spiral groove.

[0013] Preferably, the steering transition groove includes a deceleration section and an acceleration section; the deceleration section and the acceleration section are smoothly connected; the other end of the deceleration section is smoothly connected to the forward spiral groove or the reverse spiral groove near the natural turning vertex; the other end of the acceleration section is smoothly connected to the reverse spiral groove or the forward spiral groove.

[0014] Preferably, the forward spiral groove forms the center line of the forward spiral trajectory; the reverse spiral groove forms the center line of the reverse spiral trajectory; the turning transition groove forms the center line of the transition groove trajectory; the center line of the transition groove trajectory passes through the natural intersection of the forward and reverse trajectory lines at the two ends of the groove drum body, that is, the natural turning vertex; and is smoothly connected to the center line of the forward and reverse trajectory at the natural intersection of the forward and reverse trajectory lines, that is, the natural turning vertex.

[0015] Description of the steering process: The shuttle shuttles along the spiral trajectory of the groove cylinder curve to the top arc, and then turns and returns along the top arc. After passing through a point of the top arc, the shuttle accelerates and returns to the normal spiral groove. The shuttle reaches another top turning acceleration zone along the normal spiral groove trajectory and makes the same turning acceleration to enter the normal spiral groove trajectory. That is, the shuttle can smoothly pass through the arcs at both ends and turn. The yarn is accelerated to the normal spiral groove trajectory through the shuttle's appropriate multi-turn trajectory, so that the yarn stays less at both ends, reducing the warping of the yarn ends and the concavity of the yarn near the end face, and neutralizing the advantages and disadvantages of the existing two arc transitions.

[0016] The cable arrangement method corresponding to the aforementioned cable arrangement trough is: A wire drawing machine wire arranging method capable of reducing yarn ball warping and end face depression, using a wire arranging groove drum for wire arranging; characterized in that: it includes a normal wire arranging step and a turning wire arranging step; in the normal wire arranging step, the wire arranging shuttle can slide along the current spiral groove to the natural turning vertex of the forward spiral groove and the reverse spiral groove and enter the turning wire arranging step at the natural turning vertex.

[0017] Preferably, the turning and arranging step includes a deceleration step and an acceleration step; in the deceleration step, the arranging shuttle decelerates along the deceleration section of the turning transition groove to slide out of the current spiral groove; in the acceleration step, the arranging shuttle accelerates along the acceleration section of the turning transition groove to slide into the destination spiral groove that needs to be switched.

[0018] Preferably, the center line of the transition groove trajectory passes through the natural intersection of the positive spiral trajectory center line and the reverse spiral trajectory center line at the two ends of the groove drum body, that is, the natural turning vertex, and is smoothly connected to the center line of the positive spiral trajectory or the center line of the reverse spiral trajectory at the natural intersection of the positive and reverse trajectory lines, that is, the natural turning vertex.

[0019] Preferably, the actual turning vertex of the turning transition groove deviates from the natural turning vertex of the forward spiral groove and the reverse spiral groove.

[0020] Preferably, the actual turning vertex of the turning transition groove deviates from the midline of the forward spiral groove and the reverse spiral groove.

[0021] Beneficial technical effects: 1. The present application discloses a wire drawing machine wire arranging groove drum and a wire arranging method thereof that can reduce warping of yarn balls and end face depressions. One end of the turning transition groove is smoothly connected to the forward spiral groove or the reverse spiral groove at the natural turning apex, which can ensure that the shuttle can arrange the wire normally in the spiral groove before or after turning without forming warping or depressions.

[0022] 2. Since the turning transition groove includes both a low-speed section and an acceleration section, the warping formed in the low-speed section can complement the depression formed in the acceleration section, further reducing the degree of warping or end face depression of the yarn ball.

[0023] 3. Since one end of the steering transition groove is smoothly connected to the forward spiral groove or the reverse spiral groove at the natural steering apex, the number of collision points between the shuttle and the grooved drum during the steering process is reduced, which is beneficial to reducing the wear of the shuttle and the grooved drum and extending the service life of the equipment.

[0024] The technical solutions and technical effects of this application are described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 : Schematic diagram of the wiring principle of the wiring trough; Figure 2 : Schematic diagram of the cable trough structure with negative shift of the steering vertex; Figure 3 : Figure 2 A magnified view of the structure of part A; Figure 4 : Figure 2 Schematic diagram of the corresponding yarn ball structure; Figure 5 : Schematic diagram of the cable trough structure with positive shift of the steering vertex; Figure 6 : Figure 5 A magnified view of the structure of part B; Figure 7 : Figure 5 Schematic diagram of the corresponding yarn ball structure; Figure 8 : Schematic diagram of the wire drawing machine cable trough structure that can reduce yarn ball warping and end face concavity; Figure 9 : Figure 8 A magnified view of the C-site structure; Figure 10 : Figure 8 Schematic diagram of the corresponding yarn ball structure; Figure 11 : Schematic diagram of the structure of the deceleration section and acceleration section on the steering transition trough; Icon Description: 1-Trough body, 2-positive spiral groove, 21-center line of positive spiral trajectory, 3-reverse spiral groove, 31-reverse spiral track center line, 4-steering transition groove, 41-deceleration section, 42-acceleration section, 43-transition groove track centerline; 5-Natural turn to the apex; 6-actual turning point; 7-Median line. DETAILED DESCRIPTION

[0026] Terminology: In this application, the term "natural turning vertex" refers to the intersection point formed by the natural extension of the centerlines of the forward and reverse spiral grooves in the absence of a transition groove. The term "actual turning vertex" refers to the actual turning vertex formed by the centerlines of the forward and reverse spiral grooves when they are smoothly connected through the transition groove. The term "median line" refers to the line connecting the multiple intermediate intersection points formed by the forward and reverse spiral grooves intersecting in the middle of the cable tray drum, located on the same side of the cable tray drum.

[0027] See also Figure 8 、 Figure 9 、 Figure 10 The wire drawing machine cable drum disclosed in this application, which can reduce yarn warping and end face concavity, includes a drum body 1, on which are provided a forward spiral groove 2 and a reverse spiral groove 3. The forward spiral groove 2 and the reverse spiral groove 3 are smoothly connected by a turning transition groove 4 at the intersection of the two ends of the drum body 1.

[0028] The centerline 21 of the forward spiral groove 2 and the centerline 31 of the reverse spiral groove 3 naturally extend to form a natural turning vertex 5. In reality, the thread-traversing shuttle does not turn at the natural turning vertex 5, and the natural turning vertex 5 is not a real point or corresponding structure. The concept of the natural turning vertex 5 is defined in this application only to illustrate and limit the technical solution of this application.

[0029] The forward spiral groove 2 and its forward spiral trajectory centerline 21, and the reverse spiral groove 3 and its reverse spiral trajectory centerline 31, extend around the groove drum body 1 and intersect each other in the middle portion of the cable arrangement groove drum to form multiple intermediate intersections. The connecting line of the intermediate intersections on the same side of the cable arrangement groove drum forms the median line 7. The purpose of defining the median line in this application is to illustrate and limit the technical solution of this application, and the reasons are not elaborated here.

[0030] The steering transition groove 4 includes a deceleration section 41 and an acceleration section 42; the deceleration section 41 and the acceleration section 42 are smoothly connected; the other end of the deceleration section 41 is smoothly connected to the forward spiral groove 2 at the natural turning vertex 5; the other end of the acceleration section 42 is smoothly connected to the reverse spiral groove 3.

[0031] The transition groove trajectory center line 43 of the turning transition groove 4 passes through the positive spiral trajectory center line 21 of the positive spiral groove 2 and the reverse spiral trajectory center line 31 of the reverse spiral groove 3 and intersects at both ends of the groove drum body 1 to form a natural turning vertex 5; and is smoothly connected to the positive spiral trajectory center line 21 at the natural turning vertex 5.

[0032] See also Figure 11 , Figure 11 The curves marked as +δx and -δx correspond to Figure 3 and Figure 6 The black bold curve is the center line 43 of the transition groove trajectory including both the deceleration section 41 and the acceleration section 42 in this application. Figure 11 It can be seen that the curve shape of the deceleration section 41 and the curve shape of the acceleration section 42 are respectively inspired by the +δx curve and the -δx curve. Therefore, the drive of the thread shuttle also has the drive characteristics of the -δx curve and the -δx curve, respectively. The difference is that the turning vertices of the +δx curve and the -δx curve do not pass through the natural turning vertex 5, but instead form positive and negative offsets of δx respectively. The curve of the deceleration section 41 in this application passes through the natural turning vertex 5 and smoothly connects with the centerline 21 of the positive spiral trajectory of the positive spiral groove 2.

[0033] During wire traversing, the traversing shuttle driven by the +δx and -δx curves must accelerate and decelerate, respectively, to pass through the centerline 7 of the drum body 1, which can easily cause warping or end surface concavity. However, the traversing shuttle driven by the centerline 43 of the transition groove trajectory of the present application can pass through the centerline 7 of the drum body 1 at the normal operating speed of the shuttle, thereby reducing warping or end surface concavity by approximately 50%.

[0034] The arranging shuttle slides through the deceleration section 41 and enters the acceleration section 42, and then accelerates back to transition to the normal spiral groove (the reverse spiral groove 3 in this embodiment) for normal wire arrangement.

[0035] The traversing shuttle may still form a certain amount of warping and end face depression when passing through the deceleration section 41 and the acceleration section 42. However, since the center line 43 of the transition groove trajectory includes both the deceleration section 41 and the acceleration section 42, the warping and end face depression formed when the traversing shuttle turns on the same side of the groove drum body 1 can be balanced to a certain extent; thereby, the degree of warping or end face depression of the yarn ball can be further reduced.

[0036] In addition, the turning vertices of the existing +δx curve and -δx curve are both located on the median line 7 of the grooved drum body 1. In this way, when the wire-laying shuttle is driven, there is a portion on both sides of the turning vertices that is subject to heavy wear or collision. Since turning transition grooves are provided at both ends of the grooved drum body 1, there are a total of four portions on the grooved drum that are subject to heavy wear or collision. In the present application, since the deceleration section 41 is smoothly connected to the forward spiral groove 2 at the natural turning vertices 5, the wire-laying shuttle does not need to accelerate and decelerate when passing through the median line 7, so there is only one portion on the turning transition groove 4 that is subject to heavy wear or collision, and there are a total of two portions on the grooved drum body 1 that are subject to heavy wear or collision. This reduces the number of collision points between the shuttle and the grooved drum during the turning process, which is beneficial to reducing the wear of the shuttle and the grooved drum and extending the service life of the equipment.

[0037] See also Figure 8 and Figure 9 In this application, the actual turning vertex 6 of the transition groove trajectory centerline 43 deviates from the midline 7 of the forward and reverse spiral grooves and the natural turning vertex 5 by a distance Dx. In practice, the structure and dimensions (e.g., curvature) of the transition groove trajectory centerline 43 can be flexibly adjusted by adjusting the value of Dx to meet specific production requirements for turning time, yarn package quality, and so on.

[0038] The wire arranging method corresponding to the aforementioned wire drawing machine wire arranging groove drum capable of reducing yarn ball warping and end surface depression includes a normal wire arranging step and a steering wire arranging step.

[0039] Among them: in the normal wire tracing step, the wire tracing shuttle can slide along the current spiral groove at the normal wire tracing speed to the natural turning vertex 5 formed by the intersection of the forward spiral groove 2 and the reverse spiral groove 3 and enter the turning wire tracing step at the natural turning vertex 5 (that is, enter the turning wire tracing step after crossing the median line 7 at the normal wire tracing speed).

[0040] This method differs from existing wire-trapping methods in that the existing wire-trapping trough must accelerate or decelerate within the transition groove, which can easily cause warping or end-face concavity. The present invention utilizes a transition groove 4 that is smoothly connected to the forward spiral groove 2 or reverse spiral groove 3. The wire-trapping shuttle can slide at a normal speed across the center line 7 and the natural turning vertex 5, thereby reducing warping or end-face concavity by approximately 50%. Furthermore, the number of bump points or heavy wear points within the transition groove can be reduced from two to one.

[0041] The wire traversing shuttle enters the turning wire traversing step (corresponding to the turning process of the wire traversing shuttle), successively undergoes the deceleration stage and the acceleration stage, and transitions from the current spiral groove back to the destination spiral groove (in this embodiment, from the forward spiral groove 2 to the reverse spiral groove 3).

[0042] In the deceleration step, the wire shuttle decelerates along the deceleration section 41 of the steering transition groove 4 to slide out of the current spiral groove; in the acceleration step, the wire shuttle accelerates along the acceleration section 42 of the steering transition groove 4 to slide into the target spiral groove to be switched.

[0043] When the yarn shuttle passes through the deceleration section 41 and the acceleration section 42, it may still form a certain amount of warping and end surface depression. However, since the same side of the groove drum includes both the deceleration section 41 and the acceleration section 42, the warping and end surface depression on the same side can be compensated to a certain extent, further improving the quality of the yarn ball.

[0044] The complete wiring process of this application is as follows ( Figure 8 Take this as an example): BZ01, the traversing shuttle shuttles along the spiral trajectory of the groove drum curve to the top arc (that is, the entrance of the deceleration section 41 of the turning transition groove 4); BZ02, the traversing shuttle turns back along the top arc (that is, it decelerates in the deceleration section 41 and slides out of the current spiral groove and turns toward the forward spiral groove 2); At BZ03, the thread traversing shuttle passes through the top arc and turns to a point (i.e., the thread traversing shuttle passes through the deceleration section and enters the acceleration section 42), causing the shuttle to accelerate and return to the normal spiral groove (i.e., the thread traversing shuttle accelerates in the acceleration section 42 and transitions back to the normal spiral groove, i.e., the reverse spiral groove 3 begins normal thread traversing); BZ04: The wire-laying shuttle follows the normal spiral groove trajectory to the other top turning and accelerating zone and performs the same turning and accelerating to enter the normal spiral groove trajectory (i.e., the shuttle follows the normal spiral groove trajectory to the turning transition groove 4 at the other end of the groove drum body 1 and similarly turns and accelerates at low speed to return to the normal spiral groove, i.e., to the forward spiral groove 2 to begin normal wire-laying). The BZ01-BZ04 loops enable continuous drawing and winding. This allows the shuttle to smoothly pass through the arcs at both ends and turn. The yarn is accelerated to its normal spiral groove trajectory through the shuttle's appropriate multiple-turn trajectory, minimizing yarn retention at both ends and reducing warping and concavity near the end faces of the yarn balls, thus neutralizing the advantages and disadvantages of the two existing arc transitions.

[0045] It should be noted that the various embodiments described above illustrate the structure and steps of the wire traversing shuttle, which switches from the forward spiral groove 2 to the reverse spiral groove 3. In alternative embodiments, the wire traversing shuttle can also switch from the reverse spiral groove 3 to the forward spiral groove 2. However, the structure of the turning transition groove 4 on the wire traversing drum remains unchanged, including a deceleration section 41 and an acceleration section 42. The deceleration section 41 smoothly connects to the current spiral groove at the natural turning vertex 5.

[0046] In addition, in the above various embodiments, the traversing shuttle is in the transition from the current spiral groove to the normal spiral groove after sequentially going through the deceleration section 41 and the acceleration section 42; in a modified embodiment, the motion trajectory of the traversing shuttle can also be in the opposite direction. Figure 8 For example, the yarn traversing shuttle can also transition from the current spiral groove (reverse spiral groove 3) through the acceleration section 42 and the deceleration section 41 to return to the normal spiral groove (forward spiral groove). In other words, the yarn traversing shuttle first accelerates in the acceleration section 42 and enters the deceleration section 41, then decelerates smoothly in the deceleration section 41 and switches back to the normal spiral groove. Although the motion states are opposite, the technical effect of reducing yarn warping and end surface defects, as well as reducing wear and the number of bumps, is still achieved.

[0047] The above describes the technical solution and technical effects of the present application in detail in combination with the drawings and specific embodiments of the specification. It should be noted that technicians in this field can also develop other embodiments on this basis; any simple deformation and equivalent substitution that does not deviate from the innovative concept of the present application are covered by the present application and fall within the scope of protection of this patent.

Claims

1. A wire drawing machine cable arrangement groove drum capable of reducing yarn curling and end face concavity, comprising a groove drum body (1); The grooved drum body (1) is provided with a forward spiral groove (2) and a reverse spiral groove (3); The forward spiral groove (2) and the reverse spiral groove (3) are smoothly connected at the intersection of both ends via a turning transition groove (4); Its characteristics are: One end of the turning transition groove (4) establishes a smooth connection with one of the forward spiral groove (2) or the reverse spiral groove (3) at the natural turning vertex (5) of the forward spiral groove (2) or the reverse spiral groove (3).

2. The wire drawing machine cable arrangement drum capable of reducing yarn warping and end face concavity according to claim 1, characterized in that: The actual turning vertex (6) of the turning transition groove (4) deviates from the natural turning vertex (5) of the forward spiral groove (2) and the reverse spiral groove (3).

3. The wire drawing machine cable arrangement drum capable of reducing yarn warping and end face concavity according to claim 1, characterized in that: The actual turning vertex (6) of the turning transition groove (4) deviates from the midline (7) of the forward spiral groove (2) and the reverse spiral groove (3).

4. The wire drawing machine cable arrangement drum capable of reducing yarn warping and end face concavity according to claim 1, characterized in that: The steering transition groove (4) comprises a deceleration section (41) and an acceleration section (42); The deceleration section (41) and the acceleration section (42) are smoothly connected; The other end of the deceleration section (41) is smoothly connected to the forward spiral groove (2) or the reverse spiral groove (3) at the natural turning vertex (5); The other end of the acceleration section (42) is smoothly connected to the forward spiral groove (2) or the reverse spiral groove (3).

5. The wire drawing machine cable arrangement drum capable of reducing yarn warping and end face concavity according to claim 1, characterized in that: The positive spiral groove (2) forms a positive spiral track center line (21); The reverse spiral groove (3) forms a reverse spiral track center line (31); The turning transition groove (4) forms a transition groove trajectory center line (43); The transition groove track centerline (43) passes through the natural turning vertices (5) of the positive spiral track centerline (21) and the reverse spiral track centerline (31) at both ends of the groove drum body (1); and is smoothly connected to the positive spiral track centerline (21) or the reverse spiral track centerline (31) at the natural turning vertices (5).

6. A wire drawing machine arrangement method capable of reducing yarn warping and end face concavity, using a wire arrangement groove drum for arrangement; characterized by: Including normal wiring steps and steering wiring steps; In the normal wire arranging step, the wire arranging shuttle can slide along the current spiral groove to the natural turning vertex (5) of the forward spiral groove (2) and the reverse spiral groove (3) and enter the turning wire arranging step at the natural turning vertex (5).

7. The wire drawing machine arrangement method capable of reducing yarn warping and end face concavity according to claim 6, characterized in that: The steering and wiring step includes a deceleration step and an acceleration step; In the deceleration step, the wire shuttle decelerates and slides out of the current spiral groove along the deceleration section (41) of the steering transition groove (4); In the acceleration step, the wire shuttle slides along the acceleration section (42) of the steering transition groove (4) and accelerates to slide into the target spiral groove to be switched.

8. The wire drawing machine arrangement method capable of reducing yarn warping and end face concavity according to claim 6, characterized in that: The transition groove track centerline (43) passes through the natural turning vertices (5) of the positive spiral track centerline (21) and the reverse spiral track centerline (31) at both ends of the groove drum body (1), and is tangent to the positive spiral track centerline (21) or the reverse spiral track centerline (31) at the natural turning vertices (5).

9. The wire drawing machine arrangement method capable of reducing yarn warping and end face concavity according to claim 6, characterized in that: The actual turning vertex (6) of the turning transition groove (4) deviates from the natural turning vertex (5) of the forward spiral groove (2) and the reverse spiral groove (3).

10. The wire drawing machine arrangement method capable of reducing yarn warping and end face concavity according to claim 6, characterized in that: The actual turning vertex (6) of the turning transition groove (4) deviates from the midline (7) of the forward spiral groove (2) and the reverse spiral groove (3).

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