Polymer spinning bobbin and high-speed spinning equipment

Abstract

The polymer spinning bobbin is used in high-speed spinning equipment and is characterized in that the polymer spinning bobbin comprises an outer barrel and an inner barrel, the outer barrel is arranged on the outer side of the inner barrel in a sleeved mode, a part of one end of the inner barrel extends towards the radial outer side to form a protruding part, and the protruding part extends to the position opposite to the inner barrel in the axial direction; a gap is formed between the end faces, opposite to the outer cylinder, of the protruding part, the first part of the gap is a gap in tight contact to form a wire clamping groove, and the second part of the gap is a gap in non-tight contact to form a wire guiding groove. The outer cylinder comprises a first cylinder part and a second cylinder part, the first cylinder part is sleeved on the outer side of the second cylinder part, the first cylinder part is made of a soft high polymer material, and the second cylinder part is made of a hard high polymer material. By means of the macromolecule spinning bobbin, the over-tail withdrawing rate in spinning operation can be improved, the switching success rate is increased, and collision at the moment when the bobbin makes contact with an equipment pressure roller is buffered.

Description

Technical Field

[0001] The present application relates to the technical field of textile machinery industry, and in particular to a spinning bobbin made of polymer material used on a winding head of POY, DTY, FDY, HOY, UDY, MOY, FOY, BCF, and TCS high-speed spinning equipment. Background Art

[0002] In the prior art, a large number of paper tubes are required in the spinning production process of the textile industry, which are referred to as paper tubes here. Since the material characteristics of paper tubes are that they are easily deformed by moisture and have reduced strength, paper tubes can only be disposable products. The direct disadvantage is that the spinning cost is increased, and the indirect disadvantage is that the production of paper tubes consumes a large amount of wood and produces a large amount of three wastes, which cause serious pollution to the environment. Since the spinning tubes have high requirements for tensile strength, bending strength and density, and the process requirements for the wire guide grooves and wire clamping grooves thereon are strict, even paper tubes cannot meet the use requirements with ordinary paper materials and processing technology. Among them, paper is mostly imported special paper, and a large amount of foreign exchange is required for procurement.

[0003] Since the spinning equipment was upgraded to high-speed equipment with a speed of more than 9000 revolutions, people have been continuously developing spinning tubes made of other materials. For example, there is a plastic spinning tube made of all hard materials in the prior art. When using the above-mentioned plastic spinning tube, due to the high surface hardness of the hard polymer material when switching between empty and full rolls, when the winding head rotates at high speed (9000r / min), the surface of the tube will produce radial runout when the slight protrusion is ≥5um, causing the winding head to collide with the pressure shaft. Even if the collision is slight, the winding head spindle will shake violently, causing the pressure shaft and the winding head spindle to be unable to run stably and closely. This phenomenon will cause uneven winding tension of the tow, and the breakage rate (over-tail withdrawal rate) will exceed the standard during the post-spinning process. Summary of the invention

[0004] In view of this, the present application provides a polymer spinning tube, which can improve the tail exhaustion rate, and its specific structure includes: comprising an outer tube and an inner tube, the outer tube is stacked on the outside of the inner tube, one end of the inner tube extends a part radially outward to form a protrusion, the protrusion extends to a position opposite to the inner tube in the axial direction, and a gap is formed between the end faces opposite to the protrusion and the outer tube, the first part of the gap is a gap in close contact to form a wire clamping groove, and the second part is a gap in non-close contact to form a wire guide groove; the outer tube includes a first barrel and a second barrel, the first barrel is stacked on the outside of the second barrel, the first barrel and the second barrel are two polymer materials with different hardnesses, the material hardness of the first barrel is less than that of the second barrel, a break hook is provided in the wire guide groove, the break hook is integrally formed on the outer tube, and protrudes from the outer tube to the protrusion, a cavity is provided on the radial inner side of the break hook, there are two break hooks, a notch is formed between the two, and the two break hooks are symmetrically arranged across the notch.

[0005] With the above specific structure, the hard second barrel is used to make the skeleton of the bobbin in the inner layer to ensure the rigidity of the bobbin. At the same time, the soft first barrel is used to make the buffer layer of the bobbin on the surface to ensure that the bobbin has a good buffering function when contacting the pressure shaft, thereby reducing noise and vibration and improving the exhaustion rate of the tail.

[0006] In addition, a break hook is provided in the wire guide groove, the break hook is integrally formed on the first barrel portion, protrudes from the first barrel portion toward the protruding portion, a cavity is provided on the radial inner side of the break hook, there are two break hooks, a notch is formed therebetween, and the two break hooks are symmetrically arranged across the notch, so that the bobbin can be used in both directions, and the operator does not need to distinguish them, which greatly facilitates the operation.

[0007] As a possible implementation, the wire clamping groove is a V-shaped groove.

[0008] By adopting the above possible implementation method, the wire clamping groove can clamp the spinning wire, so that the polymer spinning tube can fix the spinning to achieve subsequent winding.

[0009] Optionally, the length of the wire clamping groove in the circumferential direction is greater than that of the wire guiding groove.

[0010] Through the wire guide groove, the spinning can smoothly enter the wire clamping groove.

[0011] As a possible implementation, the wire clamping groove is connected to the wire guiding groove via a transition groove, and the opening size of the transition groove is larger as it is closer to the wire guiding groove.

[0012] Optionally, the end surface of the break hook facing the protrusion is an inclined surface inclined in the axial direction and radial direction, and the closer to the notch, the farther away from the protrusion. The radial outer surface of the break hook is formed as an inclined surface, and the closer to the protrusion, the more inclined radially inward.

[0013] By adopting the above possible implementation method, it is possible to easily realize the spinning of the fully wound spindle by pulling off the spinning.

[0014] The breaking hooks symmetrically arranged in the guide groove can enable the polymer spinning tube to have the ability to cut off the spinning wound in two directions. Therefore, the polymer spinning tube can be used in both directions.

[0015] As a possible implementation, as the breakaway hook extends from the outer tube to the notch, its thickness gradually decreases. The breakaway hook adjacent to the notch may be located at the upper end of the first tube portion.

[0016] By adopting the above possible implementation method, since the break hook is integrally formed with the outer cylinder, the break hook adjacent to the notch is located above the first cylinder portion, and its material is also the same hard polymer material as the upper part of the first cylinder portion, and the break hook at the adjacent notch is thinner, which makes it easier to break the spinning connected to the fully wound spindle.

[0017] As a possible implementation, the wire groove includes a wire groove partition.

[0018] As a possible implementation, the wire groove partition is formed by providing a groove on the end surface of the outer tube facing the protrusion, and providing a protrusion that cooperates with the groove on the end surface of the protrusion facing the outer tube.

[0019] As a possible implementation, the wire clamping partition groove is arranged in the middle position of the tightly fitting gap in the wire clamping groove, that is, in the middle position in the circumferential direction.

[0020] As a possible implementation, the material hardness of the first barrel portion is in the range of Shore hardness D35° to D55°, and the material hardness of the second barrel portion is in the range of Shore hardness D65° to D85°.

[0021] The present application also relates to a winding head and a pressure shaft, wherein the polymer spinning tube described above is used on the winding head, and the pressure shaft can contact the first barrel portion of the outer barrel through relative movement, and the first barrel portion is made of a soft polymer material with a material hardness less than that of the second barrel portion, so that the first barrel portion of the outer barrel forms a buffer for the contact of the pressure shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The various technical features of the present application and the relationship between them are further explained below with reference to the accompanying drawings. The accompanying drawings are exemplary, and some technical features are not shown in actual proportion. In addition, some drawings may omit technical features that are commonly used in the technical field to which the present application belongs and are not essential for understanding and implementing the present application, or additional technical features that are not essential for understanding and implementing the present application may be shown. In other words, the combination of the various technical features shown in the accompanying drawings is not used to limit the present application. In addition, throughout the present application, the same figure numbers refer to the same content. The specific description of the drawings is as follows:

[0023] Figure 1 This is a schematic diagram of a polymer spinning bobbin according to an embodiment of the present application;

[0024] Figure 2 This is a front view of a polymer spinning bobbin according to an embodiment of the present application;

[0025] Figure 3 This is a rear view of a polymer spinning bobbin according to an embodiment of the present application;

[0026] Figure 4 This is a right side view of a polymer spinning bobbin according to an embodiment of the present application;

[0027] Figure 5 This is a cross-sectional view of a polymer spinning bobbin according to an embodiment of the present application;

[0028] Figure 6 This is a partial cross-sectional view of a polymer spinning bobbin according to an embodiment of the present application;

[0029] Figure 7 This is a schematic diagram of the outer cylinder of a polymer spinning bobbin according to an embodiment of the present application;

[0030] Figure 8 This is a vertical cross-sectional view of the outer tube of the polymer spinning tube according to the embodiment of the present application;

[0031] Fig. 9 This is a top view of the outer tube of a polymer spinning tube according to an embodiment of the present application;

[0032] Fig.10 This is a bottom view of the outer tube of a polymer spinning tube according to an embodiment of the present application;

[0033] Fig.11 This is a schematic diagram of the inner tube of a polymer spinning tube according to an embodiment of the present application;

[0034] Fig.12 This is a vertical cross-sectional view of the inner tube of a polymer spinning tube according to an embodiment of the present application;

[0035] Fig.13This is a top view of the inner tube of a polymer spinning tube according to an embodiment of the present application;

[0036] Fig.14 This is a bottom view of the inner tube of a polymer spinning tube according to an embodiment of the present application.

[0037] Explanation of the reference numerals: 100 - outer cylinder; 110 - first cylinder portion; 111 - pull-off hook; 120 - second cylinder portion; 130 - notch; 200 - inner cylinder; 210 - protrusion; 220 - wire clamping groove partition; 221 - groove; 222 - protrusion; 300 - wire clamping groove; 400 - wire guide groove; 500 - transition groove. DETAILED DESCRIPTION

[0038] Below, the specific implementation methods of the present application are described in detail with reference to the accompanying drawings.

[0039] The present application provides a polymer spinning tube in a straight tube shape, which is mainly used in high-speed spinning equipment and can improve the tail exhaustion rate. Figure 1 As shown, it comprises an outer cylinder 100 and an inner cylinder 200 , and the outer cylinder 100 is stacked on the outer side of the inner cylinder 200 .

[0040] Among them, Figure 1 As shown, a portion of the inner cylinder 200 extends out from the upper end of the outer cylinder 100 to form a protrusion 210, and the protrusion 210 extends to a position opposite to the outer cylinder 100 in the axial direction. The outer diameter of the protrusion 210 is substantially the same as the outer diameter of the outer cylinder 100, so that the spinning tube as a whole is a flangeless cylindrical tube, which will contact the pressure bar of the winding equipment at the beginning of winding.

[0041] A gap is formed between the protrusion 210 and the end of the outer cylinder 100, and the gap is used for spinning to enter. It includes two parts in the circumferential direction. One part is a V-shaped gap (a slope is formed on the protrusion 210 and the outer cylinder 100, and the slopes on both sides are combined to form a V-shaped gap, and the bottom angle of the V-shaped gap is in contact.), that is, the wire clamping groove 300, and the other part is a V-shaped gap that is not in contact with the outer cylinder 100 (the bottom angle of the V-shaped gap that is not in contact is not in contact), that is, the wire guide groove 400. The length of the wire clamping groove 300 in the circumferential direction is greater than that of the wire guide groove 400. Figure 1 , 2 As shown, the wire clamping groove 300 is connected to the wire guiding groove 400 through the transition groove 500, and the opening size of the transition groove 500 becomes larger as it is closer to the wire guiding groove.

[0042] Among them, Figure 6As shown, the outer barrel 100 includes a first barrel portion 110 and a second barrel portion 120. The first barrel portion 110 is overlapped on the outside of the second barrel portion 120. The first barrel portion 110 is composed of a soft polymer material; the second barrel portion 120 is composed of a hard polymer material. The second barrel portion 120 is made of a hard polymer material, and the inner layer of the barrel serves as the skeleton of the barrel, thereby ensuring the rigidity and strength of the barrel. At the same time, the first barrel portion 110 is made of a soft polymer material, and the surface layer of the barrel serves as a buffer layer of the barrel, so that when the spinning barrel and the pressure shaft bar contact the pressure shaft bar through relative movement, it can play a good buffering function, thereby reducing noise and jitter, and improving the tail exhaustion rate.

[0043] In this embodiment, the inner cylinder 200 is made of a hard polymer material, which is the same material as the second cylinder portion 120 of the outer cylinder. In addition, in other embodiments, the inner cylinder 200 may be made of a hard polymer material different from that of the second cylinder portion 120 of the outer cylinder.

[0044] In this embodiment, the hardness of the soft polymer material is Shore hardness D35° to D55°, and the hardness of the hard polymer material is Shore hardness D65° to D85°. In addition, in other embodiments, soft polymer materials and hard polymer materials with other hardness can also be used.

[0045] Among them, the wire guide groove 400 is a non-tightly fitting (non-contacting) V-shaped gap. A breaking hook 111 is provided in the wire guide groove 400, and the breaking hook 111 is integrally formed on the outer cylinder 100, extending and protruding from the outer cylinder 100 toward the protrusion 210, and the breaking hook 111 is used to break the spinning. The wire clamping groove 300 cooperates with the wire guide groove 400 to accurately clamp the switched filament bundle when the spinning equipment is running at high speed, and ensures that the tail wire is clear and reduces the waste wire rate. It can be understood that the wire guide groove 400 is formed by the first barrel 110, the second barrel 120 and the protrusion 210, so there is a cavity on the inner side (radially inner side) of the breaking hook 111.

[0046] In this embodiment, there are two breaking hooks 111, which are arranged opposite to each other along the wire guide groove 400, and are spaced apart to form a notch 130. At the same time, the two breaking hooks 111 are symmetrically arranged in the circumferential direction with the middle point of the wire guide groove 400. Therefore, the spinning can be broken when the bobbin rotates clockwise or counterclockwise, so that the polymer spinning bobbin provided by the present application is no longer restricted by the rotation direction and can have the function of being used in both directions. Figure 2 The end surface of the breaking hook 111 facing the protrusion 210 is an inclined surface, inclined in the axial direction and radial direction. When viewed from the side, the closer to the other breaking hook (that is, the closer to the notch 130), the lower its height (that is, the farther away from the protrusion 210). In this way, the spinning can easily enter the notch 130 and be broken. In addition, the operation Figure 6The outer surface (radial outer surface) of the break hook 111 is also formed as an inclined surface, which is inclined more inwardly as it approaches the protruding portion 210. Fig. 9 As shown, as the breaking hook 111 extends from the outer cylinder 100 to the notch 130, its thickness gradually decreases, and the breaking hook 111 adjacent to the notch 130 is located at the upper end of the first cylinder 110. Since the breaking hook 111 and the outer cylinder 100 are formed as one piece, the breaking hook 111 adjacent to the notch 130 is located above the first cylinder 110, and its material is also the same as the hard polymer material above the first cylinder 110, and the breaking hook 111 adjacent to the notch 130 is thinner, so it is easier to break the spinning connected to the fully wound spindle.

[0047] Among them, Figure 6 As shown, the gap between the wire clamping groove 300 and the wire guide groove 400 is a V-shaped groove structure, which is convenient for spinning to enter the wire guide groove 400, and then further enter the wire clamping groove 300 as the bobbin rotates. As other embodiments, the shape of the wire clamping groove 300 and the wire guide groove 400 is not limited to V-shaped, for example, it can also be U-shaped or open square.

[0048] Among them, Figure 3 , 4 As shown, a wire groove partition 220 is provided at the middle point of the wire groove 300. The wire groove partition 220 can prevent the spinning from completely entering the wire groove 300. In this embodiment, the wire groove partition 220 is formed by providing a groove on one side and a protrusion on the other side of the two end surfaces facing each other of the outer cylinder 100 and the protrusion 210. Figure 7 , 8 As shown in FIG. 9 , in this embodiment, a groove 221 is provided on one side of the outer cylinder 100; Fig.11 , 14 As shown, a protrusion 222 is provided on one side of the protruding portion 210, and two protrusions 222 are provided at intervals.

[0049] It can be understood that the first barrel portion 110 is made of elastic polymer material, and therefore the structure formed by it also includes an elastic polymer material portion.

[0050] In summary, the polymer spinning bobbin involved in the embodiment of the present application can be recycled for many times, thereby reducing production costs. In addition, since the use of polymer materials will not cause size changes and physical properties to decrease due to the humid production environment. The polymer bobbin manufactured using this technology can be used according to the fatigue cycle of the bobbin material and the degree of damage to the surface of the bobbin to formulate the number of cycles, when reaching the fatigue scrap period, it can be recycled and granulated for reuse, thereby reducing the pollution to the environment caused by the elimination of waste pipes. The bobbin of the embodiment of the present application can be injection molded, and the injection molding precision is high, and mass production can also ensure the accuracy of the size. Further, the outer cylinder 100 of the polymer spinning bobbin involved in the embodiment of the present application is composed of a hard first barrel 110 and a soft second barrel 120, which has the effect of reducing the noise and jitter of the bobbin, thereby improving the over-tail exhaustion rate. At the same time, the pull-off hook 111 symmetrically arranged in the guide wire groove 400 can enable the polymer spinning bobbin to have the ability to cut off the spinning wound in two directions, thereby, the polymer spinning bobbin involved in the embodiment of the present application can be used in both directions. In addition, the outer two-thirds of the gap of the wire clamping groove 300 is in a V-shaped groove structure, so that the polymer spinning tube involved in the embodiment of the present application can have the function of being compatible with thick and thin spinning lines.

[0051] It is worth noting that the material of the bobbin made entirely of hard polymer material (such as the material of the second barrel 120 mentioned above) generally has a bending modulus of more than 6000Mpa and a bending strength of more than 200Mpa, which far exceeds the physical property requirements of the paper tube. However, the surface hardness of the material is 75D Shore A, which exceeds the hardness of the paper tube by 25%. In spinning production, when switching between empty and full rolls, due to the high surface hardness of the hard polymer material, the slight protrusions (≥5um) on the surface of the bobbin will produce radial runout when the winding head rotates at high speed (9000r / min), and will collide with the pressure shaft. Even if this collision is slight, the winding head spindle will cause violent shaking, causing the pressure shaft and the winding head spindle to be unable to run stably and fit. This phenomenon will cause uneven tension of the filament bundle winding and an excessive breakage rate during the tailing process. However, the bending modulus of the polymer bobbin made entirely of soft polymer material on the high-speed spinning machine is too low to meet the working requirements. Therefore, the polymer spinning bobbin involved in the embodiment of the present application is made of a composite of hard polymer material and soft polymer material, which takes into account the characteristics of the soft polymer material bobbin and the hard polymer material bobbin, and takes the advantages of both to complement each other. The bobbin skeleton is made of hard polymer material in the inner layer of the bobbin to ensure the rigidity of the bobbin, and the buffer layer of the bobbin is made of soft polymer material on the surface to ensure that the bobbin has a good buffering function when it contacts the pressure shaft bar.

[0052] In the actual production process, the tail test data of the spinning bobbin made of all hard polymer materials and the polymer spinning bobbin involved in the embodiment of the present application were compared, and the results are as follows:

[0053] (1) A company in Fujian Province conducted two tail-end tests on all-rigid polymer bobbins (10 bobbins were tested each time), and the tail-end rejection rates were 70% and 80% respectively (the generally accepted qualified standard in the industry is 92%).

[0054] (2) The polymer spinning bobbin involved in the embodiment of the present application was tested for 5 cycles in a certain enterprise in Zhejiang Province (24 bobbins were tested in each cycle), and the tail removal rate was 95%.

[0055] In the actual production process, when switching the bobbin, the performance of various bobbin surfaces when in contact with the pressure shaft lever is as follows:

[0056] (1) Taking the paper bobbin as the reference target, there is obvious noise during switching, and the winding head has no obvious shaking.

[0057] (2) The all-rigid polymer bobbin makes significantly more noise than the paper bobbin during switching, and the winding head vibrates significantly.

[0058] (3) The polymer spinning bobbin involved in the embodiment of the present application has significantly lower noise when switching compared to the paper bobbin, and the winding head runs smoothly.

[0059] In summary, the bobbin of the prior art can only be used for unidirectional rotation (clockwise rotation or counterclockwise rotation), while the polymer material bobbin of the embodiment of the present application can be used in both directions, and the polymer material bobbin thread seam does not need to distinguish the thickness of the filament bundle and can be universal. That is, the embodiment of the present application provides a polymer material spinning bobbin that is not limited in the direction of rotation, and a polymer material spinning bobbin that can be used for bidirectional rotation. At present, the application field of polyester filament POY process is mostly paper bobbins, which can only rotate in one direction and are disposable consumables. The polymer material bobbin of the present invention can be used for clockwise and counterclockwise rotation, and the polymer material bobbin can be recycled many times. The user does not need to sort and select the rotation direction and the width of the thread seam of the polymer material bobbin when recycling, which provides great convenience to the user.

[0060] The embodiment of the present application uses different hard and soft polymer materials to manufacture polymer spinning bobbins. The hard and rigid polymer materials ensure bending modulus, bending strength, and impact strength, and the soft polymer materials ensure stable switching operation, collision and wear when the bobbin contacts the pressure shaft, and reduce vibration.

[0061] Some bobbins in the prior art that may affect the novelty of the polymer spinning bobbin involved in the embodiments of the present application are described as follows:

[0062] (1) First, the bobbin of the present invention is used in high-speed spinning machines, and the function of the soft polymer material coated on its surface is to buffer and reduce shock. However, some bobbin surfaces in the prior art are provided with silicone materials, which significantly prevent the yarn from being cut by the bobbin, which is different from the specific problem solved by the polymer spinning bobbin involved in the embodiments of the present application.

[0063] (2) There is also a bobbin used in a loom, which is used to prevent the yarn from twisting and knotting. Although the materials used are similar to those of the polymer spinning bobbin involved in the embodiments of the present application, the two are not used in the same field, and the structural shapes are not the same, so they cannot provide inspiration for the present application.

[0064] (3) Although the polymer spinning bobbins involved in the embodiments of the present application and some bobbins all belong to the field of accessories for textile production, the processes and equipment used are not of the same category, and there are also obvious differences in structure and shape. This difference cannot be regarded as the same technical solution simply because the Chinese characters used are the same. The spinning bobbins referred to in the present invention are bobbins used on the winding heads of high-speed spinning equipment for processing POY, DTY, FDY, HOY, UDY, MOY, FOY, BCF, TCS and other spinning, while similar bobbins in the prior art are not bobbins used in this field.

[0065] (4) The polymer spinning bobbin involved in the embodiment of the present application is a straight tube, and contacts the pressure bar of the winding device at the beginning of winding. However, the bobbins disclosed in some prior arts are I-shaped and used on completely different equipment. Some of the bobbins are equipped with silicone protective layers and rubber layers, and the specific technical problems solved by them are different from the problems of the present invention, and the purposes they play in the application are different.

[0066] It can be understood that the present application also relates to a winding head having the polymer spinning bobbin involved in the embodiments of the present application.

[0067] The term "comprising" used throughout the present application should not be interpreted as being limited to what is listed thereafter; it does not exclude other structural elements or steps.

[0068] It can be understood that those skilled in the art can combine the features mentioned in one or more embodiments mentioned in the entire application with the features in other embodiments in any appropriate manner to implement the application.

[0069] Note that the above are only preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may also include more other equivalent embodiments without departing from the technical concept of the present application, all of which belong to the protection scope of the present application.

Claims

1. A polymer spinning bobbin for use in high-speed spinning equipment, characterized in that: The invention comprises an outer cylinder and an inner cylinder, wherein the outer cylinder is sleeved on the outer side of the inner cylinder, and one end of the inner cylinder extends a part radially outward to form a protrusion, and the protrusion extends to a position opposite to the inner cylinder in the axial direction, and a gap is formed between the end faces opposite to the protrusion and the outer cylinder, and the first part of the gap is a gap in close contact to form a wire clamping groove, and the second part is a gap in non-close contact to form a wire guiding groove; The outer cylinder comprises a first cylinder portion and a second cylinder portion, the first cylinder portion is sleeved on the outside of the second cylinder portion, the first cylinder portion and the second cylinder portion are made of polymer materials with different hardness, and the hardness of the material of the first cylinder portion is less than that of the second cylinder portion; A break hook is provided in the wire guide groove, the break hook is integrally formed on the outer tube, protrudes from the outer tube toward the protruding portion, a cavity is provided on the radial inner side of the break hook, there are two break hooks, a notch is formed between the two, and the two break hooks are symmetrically arranged across the notch.

2. The polymer spinning bobbin according to claim 1, characterized in that: The wire clamping groove and the wire guiding groove are V-shaped grooves.

3. The polymer spinning bobbin according to claim 1, characterized in that: The length of the wire clamping groove in the circumferential direction is greater than that of the wire guiding groove. The wire clamping groove is connected to the wire guiding groove via a transition groove. The opening size of the transition groove becomes larger as it is closer to the wire guiding groove.

4. The polymer spinning bobbin according to claim 1, characterized in that: As the break hook extends from the outer tube to the notch, the thickness thereof gradually decreases.

5. The polymer spinning bobbin according to claim 1, characterized in that: The end surface of the break hook facing the protruding portion is an inclined surface inclined to the axial direction and the radial direction, and the closer it is to the notch, the farther it is from the protruding portion.

6. The polymer spinning bobbin according to claim 1, characterized in that: The radially outer surface of the break hook is formed as an inclined surface, which is inclined radially inward as it approaches the protruding portion.

7. The polymer spinning bobbin according to claim 1, characterized in that: The wire groove includes a wire groove partition, which is formed by arranging a groove on the end surface of the outer tube facing the protruding portion, and arranging a protrusion matching the groove on the end surface of the protruding portion facing the outer tube, thereby forming the wire groove partition.

8. The polymer spinning bobbin according to claim 7, characterized in that: The wire clamping partition groove is arranged at the middle position of the wire clamping groove in the circumferential direction.

9. The polymer spinning bobbin according to any one of claims 1 to 8, characterized in that: The material hardness of the first barrel portion is in the range of Shore hardness D35° to D55°, and the material hardness of the second barrel portion is in the range of Shore hardness D65° to D85°.

10. A high-speed spinning device, comprising a winding head and a pressure shaft, characterized in that: The winding head is provided with a polymer spinning tube as described in any one of claims 1-9, and the pressure shaft can contact the first barrel portion through relative movement. The first barrel portion is made of a soft polymer material with a material hardness lower than that of the second barrel portion, so that the first barrel portion forms a buffer for the contact of the pressure shaft portion.

Images