Aramid yarn winding drum flexible to adjust

Abstract

The utility model provides an aramid fiber yarn winding drum flexible to adjust, which comprises a drum body, the drum body comprises a middle shaft and fixing pieces uniformly distributed along the circumferential direction of the middle shaft, telescopic devices are arranged at two ends of the drum body, and each telescopic device comprises a telescopic block and an adjusting block; the multiple telescopic blocks are evenly distributed on the outer side of the adjusting block in the circumferential direction, and slope structures are arranged at the joints of the adjusting block and the telescopic blocks. The telescopic block is connected with a plurality of movable pieces extending in the axial direction, the movable pieces and the fixed pieces are arranged in a staggered mode, and when the adjusting block moves in the axial direction, the telescopic block drives the movable pieces to move in the radial direction. The winding device has the characteristic of flexible adjustment, the winding density is very convenient to adjust, the time cost of manually replacing the winding drum is reduced, and a large amount of occupied space is also saved.

Description

Technical Field

[0001] The utility model relates to the field of textile winding, in particular to a flexibly adjustable aramid yarn winding drum. Background Art

[0002] During production, the loose winding density and weight of the cheese significantly impact dyeing quality, both of which are prerequisites for ensuring cheese dyeing quality. Due to limitations in technical capabilities and structural performance, designers of past cheese dyeing machines lacked a true understanding of the flow patterns of the circulating dye liquor within the cheese. It was generally believed that the loose winding density of the cheese should not be too high, as this would affect the dye liquor's penetration and cause color differences between the inside, center, and outside of a single cheese. However, current applications have shown that under low specific flow rates, due to the higher dye liquor circulation system pressure and minimal dye leakage, the dye liquor can fully penetrate the denser yarn layers. The increased cheese winding density allows the dye liquor to pass between the yarns, ensuring equal contact between each point on the yarn and the dye liquor, ensuring uniform dyeing of the entire cheese fiber.

[0003] According to the winding density formula It can be seen that for a given yarn linear density, the density of the winding bobbin is inversely proportional to the sine of the winding angle 2ɑ. When ɑ = 45°, the winding density is minimum, and when the winding angle approaches 0°, the winding density is maximum. The winding angle is directly determined by the diameter of the winding drum. Therefore, by changing the winding drum diameter, the winding density can be flexibly adjusted to suit different dyes. At the same time, the large number of bobbins creates numerous interfaces between the bobbins, which not only increases leakage points but also increases the labor intensity of yarn loading and unloading. For filament yarn bobbins, each weighing 1.2 kg, the number of yarn splices increases, causing certain problems in downstream processes such as weaving. To this end, there is a trend towards dyeing larger bobbins (each weighing 2 kg to 5 kg). By increasing the winding drum diameter (while keeping the yarn layer thickness essentially unchanged), the weight is increased, reducing leakage points and yarn splices. This helps reduce the specific flow rate and improve production efficiency.

[0004] In existing technologies, winding drums have fixed dimensions. Changing these process parameters requires manual replacement, which is not only time-consuming and labor-intensive, but can also lead to yarn waste and reduced production efficiency. Furthermore, the fixed dimensions of traditional textile winding drums limit their flexibility and adaptability to different application scenarios. Utility Model Content

[0005] In order to overcome the deficiency in the prior art that the size of a winding drum cannot be adjusted, the utility model provides an aramid yarn winding drum with flexible adjustment.

[0006] The utility model adopts the following technical solutions.

[0007] A flexible and adjustable aramid yarn winding drum comprises a drum body, the drum body comprising a central axis and fixed plates uniformly distributed along the circumference of the central axis; telescopic devices are provided at both ends of the drum body, the telescopic devices comprising a telescopic block and an adjusting block;

[0008] There are multiple telescopic blocks that are evenly distributed circumferentially on the outside of the adjustment block, and a slope structure is provided at the connection between the adjustment block and the telescopic block; the telescopic block is connected to a movable piece extending in the axial direction, and there are multiple movable pieces that are staggered with the fixed piece. When the adjustment block moves in the axial direction, the telescopic block drives the movable piece to move in the radial direction.

[0009] Preferably, a slider is provided at the connection between the telescopic block and the adjusting block;

[0010] A sliding groove is provided on the adjusting block corresponding to the sliding block, and the telescopic block is slidably connected with the adjusting block through the sliding groove and the sliding block.

[0011] Preferably, the telescopic device includes an elastic reset component; the elastic reset component includes a shell, the shell is fixedly connected to the fixed plate through connecting ribs, a reset spring is provided in the shell, one end of the reset spring abuts against the telescopic block, and the other end of the reset spring abuts against the inner wall of the shell.

[0012] Preferably, the telescopic device further comprises a locking assembly, which is fixed to one end of the adjusting block. The locking assembly comprises two symmetrically arranged snap-in blocks, and protrusions are arranged at intervals on the outer wall of the central axis, and the snap-in blocks abut against the protrusions.

[0013] Preferably, a locking spring is provided between the clamping block and the adjusting block, and the locking spring enables the two sliding blocks to always have a movement tendency toward each other.

[0014] The beneficial effects of the utility model are:

[0015] The utility model provides a flexible adjustable aramid yarn winding drum, comprising a drum body. The drum body is composed of a fixed plate and a movable plate fixedly connected to a telescopic block. Telescopic devices are provided at both ends of the drum body. The telescopic devices include an adjusting block and a telescopic block. The axial movement of the adjusting block drives the telescopic block to expand and contract radially. The movement of the telescopic block drives the movable plates to move away from or toward each other, thereby changing the diameter of the drum body.

[0016] In summary, the utility model has the characteristics of flexible adjustment, and it is very convenient to adjust the winding density, which not only reduces the time cost of manual replacement of the reel, but also saves a lot of floor space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the present utility model;

[0019] Figure 2 This is a sectional view of the three-dimensional structure of an embodiment of the present utility model;

[0020] Figure 3 A cross-sectional view of an embodiment of the present invention;

[0021] Figure 4 for Figure 3 A magnified view of part A;

[0022] Figure 5 It is a cross-sectional view of an adjusting block in one embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 1. Cylinder; 11. Central axis; 111. Protrusion; 12. Fixed plate; 2. Telescopic device; 21. Telescopic block; 211. Movable plate; 212. Slider; 22. Adjusting block; 221. Slide groove; 3. Elastic reset assembly; 31. Housing; 32. Reset spring; 33. Connecting rib; 4. Locking assembly; 41. Locking spring; 42. Snap-in block. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0026] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0027] It should be noted that, in the present application, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0028] As attached Figure 1-5 The aramid yarn winding drum shown here includes a body 1, which includes a central axis 11 and fixed plates 12 uniformly distributed along the circumference of the central axis 11. The body 1 is provided with telescopic devices 2 at both ends, which include telescopic blocks 21 and adjustment blocks 22. The central axis 11 is used to fix the telescopic devices 2 provided at both ends of the body 1.

[0029] The telescopic block 21 is circumferentially arranged on the outside of the adjustment block 22; the outer wall of the telescopic block 21 is connected to a movable piece 211, the axial movement of the adjustment block 22 drives the telescopic block 21 to expand and contract radially, and the telescopic block 21 drives the movable piece 211 to move radially along the central axis 11.

[0030] Furthermore, the cross-sectional areas at both ends of the adjustment block 22 are different.

[0031] In some embodiments, there are multiple telescopic blocks 21 , the movable pieces 211 and the fixed pieces 12 are staggered, the telescopic blocks 21 are circumferentially arranged outside the adjustment block 22 , and the telescopic blocks 21 and the adjustment block 22 are slidably connected.

[0032] In some embodiments, a slider 212 is provided at the connection between the telescopic block 21 and the adjustment block 22. A slot 221 is provided on the adjustment block 22 corresponding to the slider 212. The telescopic block 21 and the adjustment block 22 are connected via the slot 221 and the slider 212. The slot 221 is arranged at a certain angle to the horizontal plane.

[0033] In some embodiments, the telescopic device 2 includes an elastic reset component 3; the elastic reset 3 component includes a shell 31, the shell 31 is fixedly connected to the cylinder 1 through a connecting rib 33, and a reset spring 32 is provided in the shell 31, one end of the reset spring 32 abuts against the telescopic block 21, and the other end of the reset spring 32 abuts against the inner wall of the shell 31. The reset spring 32 makes the telescopic blocks 21 always have a tendency to move closer to each other. Under the axial movement of the adjustment block 22 towards each other, the telescopic blocks 21 will move in the direction away from each other and enter the internal space of the shell 31. Due to the limiting effect of the shell 31, the telescopic block 21 will not move axially with the adjustment block 22 but can only move radially; further, a guide protrusion guiding the movement direction of the telescopic block 21 is also provided in the shell 31 to ensure that the telescopic blocks 21 do not interfere with each other when moving.

[0034] The housing 31 also acts as a side disc, ensuring good yarn loop stability during winding and unwinding.

[0035] In some embodiments, the telescopic device 2 also includes a locking assembly 4, which is fixed to one end of the adjusting block 22. The locking assembly 4 includes two symmetrically arranged snap-in blocks 42. The snap-in blocks 42 are slidably arranged on the adjusting block 22. Protrusions 111 are arranged at intervals on the outer wall of the central axis 11, and the snap-in blocks 42 abut against the protrusions 111.

[0036] In some embodiments, a locking spring 41 is provided between the clamping block 42 and the adjusting block 22 , and the locking spring 41 ensures that the two clamping blocks 42 always tend to move closer to each other.

[0037] When the engaging block 42 abuts against the protrusion 111, the adjusting block 22 is locked to the central shaft 11, thereby preventing the adjusting block 22 from moving radially backward due to the elastic force of the return spring 32. Furthermore, the locking assembly 4 prevents the movable piece 211 from accidentally moving during the winding operation of the bobbin body 1, thereby preventing the yarn from loosening.

[0038] The working principle of this utility model is:

[0039] Through the cooperation of the slide groove 221 and the buckle, as well as the cooperation of the elastic reset component 3 and the locking component 4, the axial movement of the adjustment block 22 can drive the telescopic block 21 to expand and contract radially. When the adjustment blocks 22 at both ends of the cylinder 1 move toward each other, the corresponding telescopic blocks 21 move toward each other, and the movable piece 211 connected to the telescopic block 21 also moves with the telescopic block 21, so that the diameter of the cylinder 1 becomes larger and larger; conversely, when the adjustment blocks 22 at both ends of the cylinder 1 move toward each other, the diameter of the cylinder 1 becomes smaller and smaller.

[0040] When the operator needs to increase the diameter of the cylinder 1, they can move the adjustment blocks 22 on both sides of the cylinder 1 toward each other, which in turn moves the telescopic blocks 21 away from each other. The movable piece 211 connected to the telescopic blocks 21 also moves with the telescopic blocks 21, thereby increasing the diameter of the cylinder 1. Because the protrusions 111 on the central axis 11 are provided with inclined surfaces, when the locking assembly 4 moves toward each other, it will not hinder the movement of the adjustment blocks 22, and the position of the adjustment blocks 22 can be automatically locked.

[0041] When the operator needs to adjust the diameter of the cylinder 1 to reduce it, they first manually move the engaging blocks 42 away from each other so that they no longer contact the protrusions 111. At this point, the adjustment block 22 is unlocked and, under the force of the return spring 32, moves away from each other, gradually reducing the diameter of the cylinder 1. Once the diameter is adjusted to the desired size, the operator simply releases the engaging blocks 42, locking the adjustment block 22 and preventing it from sliding relative to the central axis 11, completing the diameter adjustment.

[0042] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A flexible aramid yarn winding drum, characterized in that: The cylinder comprises a central axis and fixed plates uniformly distributed along the circumference of the central axis. Both ends of the cylinder are provided with telescopic devices, which include a telescopic block and an adjusting block. There are multiple telescopic blocks that are evenly distributed circumferentially on the outside of the adjustment block, and a slope structure is provided at the connection between the adjustment block and the telescopic block; the telescopic block is connected to a movable piece extending in the axial direction, and there are multiple movable pieces that are staggered with the fixed piece. When the adjustment block moves in the axial direction, the telescopic block drives the movable piece to move in the radial direction.

2. The flexibly adjustable aramid yarn winding drum according to claim 1, characterized in that: A slider is provided at the connection between the telescopic block and the adjusting block; A sliding groove is provided on the adjusting block corresponding to the sliding block, and the telescopic block is slidably connected with the adjusting block through the sliding groove and the sliding block.

3. The flexibly adjustable aramid yarn winding drum according to claim 2, characterized in that: The telescopic device includes an elastic reset component; the elastic reset component includes a shell, the shell is fixedly connected to the fixed plate through a connecting rib, a reset spring is provided in the shell, one end of the reset spring abuts against the telescopic block, and the other end of the reset spring abuts against the inner wall of the shell.

4. The flexibly adjustable aramid yarn winding drum according to claim 3, characterized in that: The telescopic device also includes a locking assembly, which is fixed to one end of the adjustment block. The locking assembly includes two symmetrically arranged clamping blocks. Protrusions are arranged at intervals on the outer wall of the central axis, and the clamping blocks abut against the protrusions.

5. The flexibly adjustable aramid yarn winding drum according to claim 4, characterized in that: A locking spring is provided between the clamping block and the adjusting block, and the locking spring enables the two sliding blocks to always have a movement tendency to move closer to each other.

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