A winding spindle and a spinning winding machine

Abstract

This application discloses a winding spindle and a spinning winding machine, belonging to the technical field of spinning winding equipment. The winding spindle of this invention includes a chuck shaft assembly, a long sleeve, and a mandrel assembly. A bearing limiting sleeve is located between two adjacent bearings, with its two ends abutting against the adjacent bearings to limit the distance between them. A circumferential sleeve is fitted onto each bearing to adjust the circumferential clearance between the bearing and the inner wall of the first shaft hole and to reduce vibrations generated during high-speed rotation of the mandrel. With this design, the bearing limiting sleeve is located between two adjacent bearings and is not fitted onto the bearings themselves. The chuck shaft assembly serves as a support sleeve for each bearing in this application, reducing the size space of the original bearing outer sleeve and, to a certain extent, helping the winding spindle to balance high-speed operation and large-bundle design.

Description

Technical Field

[0001] This application belongs to the technical field of spinning and winding equipment, and particularly relates to a winding spindle and a spinning and winding machine. Background Technology

[0002] The winding spindle, also known as the spindle shaft or chuck shaft, is a key component of a spinning winding machine, used to wind yarn onto a bobbin to form a specific shape. With advancements in spinning technology, spinning winding machines are developing towards higher speeds; to save energy and increase output, spinning winding machines are evolving towards longer spindle shafts and larger package sizes.

[0003] High-speed winding and large-coil winding represent two contradictory design concepts for the winding spindle. Large-coil winding involves reducing the diameter, length, and rigidity of the winding spindle, thereby increasing the weight of the coil. High-speed winding, on the other hand, involves increasing the rotational speed of the winding spindle, which limits the reduction of its diameter.

[0004] The winding spindles in related technologies are difficult to balance high speed and large roll packaging. Summary of the Invention

[0005] This application aims to at least partially solve the technical problem in related technologies where winding spindles struggle to simultaneously achieve high speed and large package size. To this end, this application provides a winding spindle and a spinning winding machine.

[0006] In a first aspect, embodiments of this application provide a wound spindle, comprising:

[0007] A chuck shaft coupling and a long sleeve, wherein the chuck shaft coupling has a first shaft hole and the long sleeve has a second shaft hole, and one side of the long sleeve is fitted onto the chuck shaft coupling;

[0008] A mandrel assembly, comprising a mandrel, at least two bearings, a bearing retaining sleeve, and a circumferential sleeve;

[0009] Multiple bearings are spaced apart on the mandrel, and bearing limiting sleeves are sleeved on the mandrel and located between two adjacent bearings. Along the axial direction of the mandrel, the two ends of the bearing limiting sleeves abut against the bearings.

[0010] Along the axial direction of the mandrel, the bearings located at both ends of the plurality of bearings are respectively the first end bearing and the second end bearing, and the side of the first end bearing and the second end bearing away from the bearing limiting sleeve both abut against the sidewall of the first shaft hole.

[0011] The circumferential sleeves are respectively fitted onto the bearing and abut against the inner wall of the first shaft hole and the bearing;

[0012] The mandrel is located in the first shaft hole and the second shaft hole, and is fixedly connected to the long sleeve through the second shaft hole. The mandrel is rotatably connected to the chuck shaft assembly through the bearing.

[0013] In some embodiments, the mandrel assembly further includes a first axial pad and an axial assembly; the first axial pad and the mandrel assembly are both sleeved on the mandrel and located on the side of the first end bearing away from the bearing limiting sleeve and the side of the second end bearing away from the bearing limiting sleeve, respectively;

[0014] Along the axial direction of the mandrel, the two sides of the first axial pad abut against the first end bearing and the inner wall of the first shaft hole, respectively, and the two sides of the axial assembly abut against the second end bearing and the inner wall of the first shaft hole, respectively.

[0015] In some embodiments, the axial assembly includes a bearing stop, a second axial damping pad, and a retaining ring arranged sequentially along the axial direction of the mandrel. The bearing stop is disposed near the second end bearing, the second axial damping pad is installed on the bearing stop, and the retaining ring is engaged with the inner wall of the first shaft hole to abut against the second axial damping pad, the bearing stop, and the second end bearing.

[0016] In some embodiments, the first end bearing is positioned and mounted on the mandrel along the axial direction of the mandrel.

[0017] In some embodiments, the mandrel includes a first mandrel, a second mandrel, and a connector, wherein the first mandrel and the second mandrel are detachably connected by the connector; a first end bearing limiting groove is formed between the connector and the second mandrel, and the first end bearing is installed in the first end bearing limiting groove; along the axial direction of the mandrel, both sides of the first end bearing are in contact with the first end bearing limiting groove.

[0018] In some embodiments, a circumferential sleeve limiting groove is provided on the inner wall of the first shaft hole, and the circumferential sleeve is installed in the circumferential sleeve limiting groove.

[0019] In some embodiments, there is a gap between the bearing limiting sleeve and the mandrel.

[0020] In some embodiments, the mandrel is interference-fitted with the second shaft hole to fix the mandrel to the long sleeve.

[0021] In some embodiments, the winding spindle further includes a tensioning mechanism fitted onto the long sleeve, the tensioning mechanism being used to tension the bobbin.

[0022] Secondly, embodiments of this application provide a spinning and winding machine, including the winding spindle provided in the first aspect above.

[0023] The present invention has at least the following beneficial effects:

[0024] The present invention provides a winding spindle, including a chuck shaft assembly, a long sleeve and a mandrel assembly. The bearing limiting sleeve is located between two adjacent bearings, and its two ends abut against the two adjacent bearings respectively to limit the distance between the two adjacent bearings. The circumferential sleeve is respectively fitted on each bearing to adjust the circumferential clearance between the bearing and the inner wall of the first shaft hole and to reduce the vibration generated when the mandrel rotates at high speed. With this design, the bearing limiting sleeve is located between two adjacent bearings and is not fitted onto the bearings. The chuck shaft coupling serves as the support sleeve for each bearing in this application, reducing the size space of the original bearing outer sleeve. To a certain extent, this helps the winding spindle to achieve both high-speed and large-coil design. This space can be used to: 1. Increase the size of the bearings and mandrel to improve the load capacity of the winding spindle, thereby enabling high-speed winding spindle design; 2. With the bearing size unchanged, the outer diameter of the chuck shaft coupling can be reduced, thereby correspondingly reducing the outer diameter of the long sleeve and the size of the external tensioning mechanism of the long sleeve, thereby enabling large-coil winding spindle design; 3. With the bearing size unchanged, the outer diameter of the chuck shaft coupling is reduced, so that the optimized size space of the long sleeve is increased, thereby increasing the rotational speed of the winding spindle of the same specification, further facilitating the high-speed design of the winding spindle. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the mandrel assembly for winding a spindle in the related art is shown.

[0027] Figure 2 A schematic diagram of the structure of the wound spindle in one or more embodiments of this application is shown. Figure 1 .

[0028] Figure 3 It shows Figure 2 Enlarged view of a portion of point A in the middle.

[0029] Figure 4 A schematic diagram of the chuck shaft assembly of a winding spindle in one or more embodiments of this application is shown.

[0030] Figure 5 A schematic diagram of the structure of the mandrel assembly for winding a spindle in one or more embodiments of this application is shown.

[0031] Figure 6 A schematic diagram of the structure of the wound spindle in one or more embodiments of this application is shown. Figure 2 .

[0032] Reference numerals: 100-winding spindle, 110-chuck shaft assembly, 111-first shaft hole, 1111-circumferential sleeve limiting groove, 120-long sleeve, 121-second shaft hole, 130-mandrel assembly, 131-mandrel, 1311-first mandrel, 1312-second mandrel, 1313-connector, 1314-first end bearing limiting groove, 132-first end bearing, 133-second end bearing, 134-bearing limiting sleeve, 135-circumferential sleeve, 136-first axial pad, 137-axial assembly, 1371-bearing stop, 1372-second axial damping pad, 1373-limiting retaining ring, 140-tensioning mechanism, 200-bore. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0037] The winding spindle, also known as the spindle shaft or chuck shaft, is a key component of a spinning winding machine, used to wind yarn onto a bobbin to form a specific shape. With advancements in spinning technology, spinning winding machines are developing towards higher speeds; to save energy and increase output, spinning winding machines are evolving towards longer spindle shafts and larger package sizes.

[0038] High-speed winding and large-coil winding represent two contradictory design concepts for the winding spindle. Large-coil winding involves reducing the diameter, length, and rigidity of the winding spindle, thereby increasing the weight of the coil. High-speed winding, on the other hand, involves increasing the rotational speed of the winding spindle, which limits the reduction of its diameter.

[0039] The winding spindles in related technologies are difficult to balance high speed and large roll packaging.

[0040] Therefore, in related technologies, wound spindles suffer from the technical problem of simultaneously achieving high speed and large-roll capacity. This application provides a wound spindle that can at least partially solve the aforementioned technical problems.

[0041] The applicant of this application analyzed the structure of wound spindles in related technologies and found that the structure of the mandrel assembly in these technologies limits the development of wound spindles towards higher speeds and larger package sizes. For examples of mandrel assemblies in related technologies, please refer to [link to related technologies]. Figure 1 As shown, the assembly includes a mandrel 1, two bearings 2, and a bearing sleeve 3. The two bearings 2 are fitted onto the mandrel 1, and the bearing sleeve 3 is fitted onto both the mandrel 1 and the two bearings 2 to limit the distance between the bearings 2. With this design, the dimensions of the chuck shaft assembly and the long sleeve, which are fitted outside the mandrel assembly, will be limited by the dimensions of the bearing sleeve, thus restricting the development of winding spindles towards higher speeds and larger coil sizes.

[0042] This application is described below with reference to the accompanying drawings and specific embodiments:

[0043] This application provides a winding spindle 100, which optimizes the structure of the mandrel assembly 130, enabling the winding spindle 100 to balance high-speed and large-roll development.

[0044] like Figure 2 As shown, the winding spindle 100 of this application includes a chuck shaft coupling 110, a long sleeve 120, and a mandrel assembly 130.

[0045] The chuck shaft coupling 110 has a first shaft hole 111 and the long sleeve 120 has a second shaft hole 121. The first shaft hole 111 and the second shaft hole 121 are used to install the spindle assembly 130. One side of the long sleeve 120 is fitted onto the chuck shaft coupling 110.

[0046] The spindle assembly 130 includes a spindle 131, at least two bearings, a bearing retaining sleeve 134, and two circumferential sleeves 135.

[0047] Multiple bearings are spaced apart on the spindle 131 to provide support at multiple points along the axis of the spindle 131, ensuring the stability of the spindle 131's rotation.

[0048] Bearing retaining sleeves 134 are fitted onto the mandrel 131 and located between adjacent bearings. Along the axial direction of the mandrel 131, the two ends of the bearing retaining sleeves 134 abut against the bearings. Along the axial direction of the mandrel 131, the bearings at both ends of the multiple bearings are designated as first end bearings 132 and second end bearings 133. The sides of the first end bearings 132 and second end bearings 133 away from the bearing retaining sleeves 134 abut against the sidewall of the first shaft hole 111. In other words, the number of bearing retaining sleeves 134 is one less than the number of bearings. For example, three bearings would have two bearing retaining sleeves 134. These bearing retaining sleeves 134 are fitted onto the mandrel and located between two adjacent bearings. Among the multiple bearings, the bearings closer to both ends are called end bearings, namely the first end bearing 132 and the second end bearing 133. The sides of these two end bearings away from the bearing retaining sleeves 134 abut against the inner wall of the first shaft hole to limit the distance between the two end bearings. The bearing retaining sleeves 134 limit the distance between the bearings located in the middle. With this design, multiple bearings are fixed in the first shaft hole 111 by the bearing limiting sleeve 134 and the inner wall of the first shaft hole 111. They will not move along the axis of the spindle 131, preventing the bearings from shifting closer or further apart during the high-speed rotation of the spindle 131 and failing to provide stable support for the spindle 131, thus ensuring the stability of the rotation of the spindle 131.

[0049] In some embodiments, such as Figure 1As shown, two bearings are provided, and a bearing limiting sleeve 134 is provided. The bearing limiting sleeve 134 limits the minimum distance between the two bearings, and the inner wall of the first shaft hole 111 limits the maximum distance between the two bearings. Under the action of the bearing limiting sleeve 134 and the inner wall of the first shaft hole 111, the two bearings are fixed in the first shaft hole 111 and will not move towards or away from each other along the axis of the spindle 131. This prevents the two bearings from getting closer or further apart during the high-speed rotation of the spindle 131 and from failing to provide stable support for the spindle 131, thus ensuring the stability of the rotation of the spindle 131.

[0050] To adjust the circumferential clearance between the bearing and the inner wall of the first shaft hole 111 and to reduce the vibration occurring during the rotation of the spindle 131, this application provides circumferential sleeves 135. The circumferential sleeves 135 are respectively fitted onto the bearings and abut against the inner wall of the first shaft hole 111 and the bearings. That is, the number of circumferential sleeves 135 is greater than or equal to the number of bearings, with at least one circumferential sleeve 135 fitted onto each bearing. The circumferential sleeves 135 abut against both the bearing and the inner wall of the first shaft hole 111, so that vibrations from the bearings can be transmitted to the circumferential sleeves 135. During operation, the rotational speed, winding quality, and rigidity of the winding spindle 100 change, as do the external excitations. Vibration is inevitable during the winding process, which can affect the winding quality to some extent. With the design of this application, the bearing and the inner wall of the first shaft hole 111 are flexibly connected by the circumferential sleeve 135, which can reduce the impact of the vibration of the mandrel 131 on the chuck shaft coupling 110 and the long sleeve 120 to a certain extent, thereby ensuring the winding quality of the winding spindle 100 of this application.

[0051] In some embodiments, such as Figure 1 The setup shown has two circumferential sleeves 135, one of which is fitted onto each of the two bearings.

[0052] The mandrel 131 is located within the first shaft hole 111 and the second shaft hole 121, and is fixedly connected to the outer sleeve through the second shaft hole 121; the mandrel 131 is rotatably connected to the chuck shaft coupling 110 via a bearing. In use, the chuck shaft coupling 110 is mounted on the machine base; the end of the mandrel 131 furthest from the long sleeve 120, i.e. Figure 1 The left end of the mandrel 131 is connected to the drive device. The drive device drives the mandrel 131 to rotate at high speed. When the mandrel 131 rotates, the chuck shaft coupling 110 is stationary. Since the mandrel 131 and the long sleeve 120 are fixed, the mandrel 131 will drive the long sleeve 120 to rotate together, thereby realizing the winding of the wire.

[0053] The structure of the chuck shaft coupling 110 is diverse, and can be as follows: Figure 4The integrated structure shown can also be composed of multiple connected components. The chuck shaft coupling 110 connects to the machine base; therefore, the chuck shaft coupling 110 typically has connecting holes, connecting bolts, etc., for connection, but this application does not limit the specific details. Figure 4 As shown, in some embodiments, a flange is provided on the chuck shaft assembly 110, which is connected to the machine base by bolts through the through holes on the flange.

[0054] The current effective working length of the winding spindle is usually up to 1800mm. Due to the size limitation of the working tube, a tensioning mechanism is also required. The diameter of the long sleeve is usually only between 100 and 115mm. Therefore, even saving a few millimeters of space in the diameter direction will improve the working condition of the winding spindle.

[0055] However, in the related technology, the bearing outer sleeve 3 is respectively fitted on the two bearings 2 on both sides of the length direction to limit and support the two bearings 2. This design will increase the diameter of the mandrel assembly to a certain extent, thereby increasing the outer diameter of the winding spindle.

[0056] With this design, the spindle 131 is rotatably connected to the chuck shaft assembly 110 via multiple bearings. The spindle 131 and the long sleeve 120 are fixedly connected. During the rotation of the spindle 131, vibration is reduced by the circumferential sleeve 135, the distance between two adjacent bearings is limited by the bearing limiting sleeve 134, and the distance between the first end bearing 132 and the second end bearing 133 is limited by the inner wall of the first shaft hole 111, so as to ensure that the distance between each bearing meets the requirements. With this design, the bearing limiting sleeve 134 is located between two adjacent bearings and is not fitted onto the bearings. The chuck shaft coupling 110 serves as a support sleeve for each bearing in this application, reducing the size space of the bearing outer sleeve 2 in related technologies. This, to a certain extent, helps the winding spindle 100 to balance high-speed and large-coil design. Utilizing this space, the following can be achieved: 1. Since this solution does not have a bearing outer sleeve 2 and the bearing limiting sleeve 134 is not located above each bearing, the size of each bearing can be increased, thereby increasing the size of the mandrel 131 to improve the load capacity of the winding spindle 100, thus enabling a high-speed design for the winding spindle 100; 2. Since this solution does not have a bearing outer sleeve 2 and the bearing limiting sleeve 134 is not located above each bearing, the size of each bearing can be increased, thereby increasing the size of the mandrel 131 to improve the load capacity of the winding spindle 100, thus enabling a high-speed design for the winding spindle 100; Since sleeve 134 is not located above each bearing, the outer diameter of chuck shaft coupling 110 can be reduced while the dimensions of each bearing remain unchanged. Consequently, the outer diameter of long sleeve 120 and the dimensions of external tensioning mechanism 140 of long sleeve 120 can be reduced accordingly, thereby realizing the large-coil design of winding spindle 100. 3. Since this solution does not have bearing outer sleeve 2 and bearing limiting sleeve 134 is not located above each bearing, the outer diameter of chuck shaft coupling 110 can be reduced while the dimensions of each bearing remain unchanged. This allows for a larger space for optimization of the dimensions of long sleeve 120, thereby optimizing the design of long sleeve 120 and increasing the rotational speed of winding spindle 100 of the same specification, further facilitating the high-speed design of winding spindle 100.

[0057] In order to adjust the axial clearance between the first end bearing 132 and the inner wall of the first shaft hole 111, adjust the axial clearance between the second end bearing 133 and the inner wall of the first shaft hole 111, and further reduce the impact of vibration generated by the high-speed rotation of the mandrel 131 on the winding quality, in some embodiments, the mandrel assembly 130 further includes a first axial pad 136 and an axial assembly 137. The first axial pad 136 and the mandrel assembly 130 are both sleeved on the mandrel 131 and are respectively located on the side of the first end bearing 132 away from the bearing limiting sleeve 134 and the side of the second end bearing 133 away from the bearing limiting sleeve 134. Along the axial direction of the mandrel 131, the two sides of the first axial pad 136 abut against the first end bearing 132 and the inner wall of the first shaft hole 111, respectively, and the two sides of the axial assembly 137 abut against the second end bearing 133 and the inner wall of the first shaft hole 111, respectively. With this design, the side of the first end bearing 132 furthest from the second end bearing 133 abuts against the first axial pad 136, indirectly abutting against the inner wall of the first shaft hole 111. The side of the second end bearing 133 furthest from the first end bearing 132 abuts against the axial assembly 137, indirectly abutting against the inner wall of the first shaft hole 111. With this design, the axial vibration of the mandrel 131 is transmitted to the first axial pad 136 and the axial assembly 137, and then to the chuck shaft coupling 110 and the long sleeve 120. Through the vibration damping effect of the first axial pad 136 and the axial assembly 137, the impact of the axial vibration of the mandrel 131 on the chuck shaft coupling 110 and the long sleeve 120 is reduced, thereby ensuring the winding quality.

[0058] In some embodiments, such as Figure 3 As shown, the axial assembly 137 includes a bearing stop 1371, a second axial damping pad 1372, and a retaining ring 1373 arranged sequentially along the axial direction of the spindle 131. The bearing stop 1371 is positioned close to the second end bearing 133. The second axial damping pad 1372 is mounted on the bearing stop 1371. The retaining ring 1373 is engaged with the inner wall of the first shaft hole 111 to abut against the second axial damping pad 1372, the bearing stop 1371, and the second end bearing 133. The bearing stop 1371 transmits the axial vibration of the spindle 131 and positions and supports the second axial damping pad 1372. With this design, the vibration of the second end bearing 133 is evenly transmitted to the bearing stop 1371, so that the second axial damping pad 1372 is evenly stressed and performs a better damping function. In some embodiments, a retaining ring groove is provided on the inner wall of the first shaft hole 111, and the retaining ring 1373 is engaged in the retaining ring groove. After the retaining ring 1373 is engaged with the first shaft hole 111 through the retaining ring groove, it presses against the second axial damping pad 1372. The second damping pad 1372 then presses against the bearing stop 1371, which in turn presses against the second end bearing 133, thereby limiting the position of the second end bearing 133. In some embodiments, the bearing stop 1371 is provided with a mounting groove, and the second axial damping pad 1372 is located in the mounting groove.

[0059] The materials of the circumferential sleeve 135, the first axial pad 136, and the second axial damping pad 1372 are varied, including rubber, polyurethane, silicone, etc., and are not limited in this application.

[0060] In some embodiments, a first end bearing 132 is mounted on the mandrel 131 along its axial direction. With this design, the first end bearing 132 is limited in the axial direction by the bearing limiting sleeve 134 and the first axial pad 136, and since the first end bearing 132 is also limited and mounted on the mandrel 131, the mandrel 131 will not move along the axial direction of the first end bearing 132, thus ensuring the stability of the mandrel 131 during rotation and guaranteeing the winding quality. It should be noted that with this design, the mandrel 131 is limited by the first end bearing 132, and each bearing and component such as the bearing limiting sleeve 134 are limited within the first shaft hole 111 by the limiting retaining ring 1373. In this way, the mandrel assembly 130 and the chuck shaft coupling 110 are integrated into a single unit, further optimizing the structural design of the winding spindle 100 and ensuring the integrity of the mandrel assembly 130 and the chuck shaft coupling 110.

[0061] In some embodiments, such as Figure 5 As shown, the mandrel 131 includes a first mandrel 1311, a second mandrel 1312, and a connector 1313. The first mandrel 1311 and the second mandrel 1312 are detachably connected by the connector 1313. When the first mandrel 1311 and the second mandrel 1312 are connected by the connector 1313, the connector 1313 and the second mandrel 1312 together form a first end bearing limiting groove 1314. Along the axial direction of the mandrel 131, the two sides of the first end bearing 132 contact the first end bearing limiting groove 1314, so that the first end bearing 132 is limited and installed on the mandrel 131 along the axial direction of the mandrel 131. With this design, during installation, the first end bearing 132 is first fitted onto the second spindle 1312, and then the first spindle 1311 and the second spindle 1312 are connected via the connector 1313. After connection, the side of the first end bearing 132 away from the second end bearing 133 contacts the connector 1313, and the side closer to the second end bearing 133 contacts the first spindle 1311. The connector 1313 can be a coupling or the like, and is not limited in this application.

[0062] To facilitate the installation of the circumferential sleeve 135, and to reduce the space occupied by the circumferential sleeve 135 in the radial direction of the first shaft hole 111, in some embodiments, such as Figure 4As shown, a circumferential sleeve limiting groove 1111 is formed on the inner wall of the first shaft hole 111, and the circumferential sleeve 135 is installed in the circumferential sleeve limiting groove 1111. With this design, the circumferential sleeve 135 is limited and installed in the circumferential sleeve limiting groove 1111, which prevents the circumferential sleeve 135 from shifting too much along the axial direction of the mandrel 131 during the operation of the winding spindle 100, thus losing its vibration damping function and helping to ensure the continuous and stable operation of the winding spindle 100 of this application. At the same time, with this design, the circumferential sleeve 135 is partially located in the circumferential sleeve limiting groove 1111, reducing its space occupation in the radial direction of the first shaft hole 111, further ensuring the high-speed and large-coil design of the winding spindle 100.

[0063] like Figure 5 As shown, there is a gap between the bearing limiting sleeve 134 and the mandrel 131 to avoid contact and friction between the mandrel 131 and the bearing limiting sleeve 134 during rotation, which would affect the rotation of the mandrel 131 and ensure the continuous and stable operation of the winding spindle 100 of this application.

[0064] The mandrel 131 is located within the second shaft hole 121 and is fixedly connected to the long sleeve 120 via the second shaft hole 121 in various ways. For example, glue can be applied between the mandrel 131 and the second shaft hole 121 for bonding; the mandrel 131 and the second shaft hole 121 can be fixedly connected by welding; or, for another example, keyways can be formed on the mandrel 131 and the second shaft hole 121 for key-based connection. In some embodiments, for ease of installation, the mandrel 131 is press-fitted with the second shaft hole 121 to fix the mandrel 131 to the long sleeve 120.

[0065] To facilitate the fixing of the bobbin 200 by the winding spindle 100 in this application, in some embodiments, such as Figure 6 As shown, the winding spindle 100 of this application also includes a tensioning mechanism 140, which is sleeved on the long sleeve 120 and is used to tension the bobbin 200. In use, the bobbin 200 is sleeved on the tensioning mechanism 140, and then the tensioning mechanism 140 is controlled to expand and tighten the bobbin 200. The structure of the tensioning mechanism 140 is varied and is known to those skilled in the art, and will not be described in detail here. Under normal circumstances, the tensioning mechanism 140 expands under the action of high-pressure air to press against the bobbin 200 located thereon, so that the spinning yarn or the like is wound on the bobbin 200.

[0066] The following is passed Figure 2The structure shown illustrates the installation process of the wound spindle 100 of this application: First, the first axial washer 136 is installed in the first shaft hole 111 of the chuck shaft coupling 110; then, two circumferential sleeves 135 are installed in the circumferential sleeve limiting grooves 1111; next, the first end bearing 132 is installed on the second mandrel 1312; then, the first mandrel 1311 and the second mandrel 1312 are connected by a connector 1313 to fix the first end bearing 132; next, the second end bearing 133 and the bearing limiting sleeve 134 are installed on the second mandrel 1312; then, the first mandrel 1311, the second mandrel 1312, the first end bearing 132, and the second end mandrel 1312 are connected. The bearing 133 is inserted into the first shaft hole 111, so that the first end bearing 132 and the second end bearing 133 are respectively located in the two circumferential sleeves 135; then the axial assembly 137 is installed. Specifically, the second axial damping pad 1372 is first installed on the bearing stop 1371, then the second axial damping pad 1372 and the bearing stop 1371 are fitted together on the second spindle 1312, then the limiting retaining ring 1373 is fitted on the second spindle 1312 and snapped into the retaining ring groove on the inner wall of the first shaft hole 111; finally, the second shaft hole 121 of the long sleeve 120 and the second spindle 1312 are aligned and interference-fitted so that the long sleeve 120 is installed on the second spindle 1312.

[0067] In summary, in the winding spindle 100 of this application, the mandrel 131 is rotatably connected to the chuck shaft assembly 110 through multiple bearings. The mandrel 131 and the long sleeve 120 are fixedly connected. During the rotation of the mandrel 131, vibration is reduced by the circumferential sleeve 135, the distance between two adjacent bearings is limited by the bearing limiting sleeve 134, and the distance between the first end bearing 132 and the second end bearing 133 is limited by the inner wall of the first shaft hole 111, so as to ensure that the distance between each bearing meets the requirements. With this design, the bearing limiting sleeve 134 is located between two adjacent bearings and is not fitted onto the bearings. The chuck shaft coupling 110 serves as a support sleeve for each bearing in this application, reducing the size space of the bearing outer sleeve 2 in related technologies. This, to a certain extent, helps the winding spindle 100 to balance high-speed and large-coil design. Utilizing this space, the following can be achieved: 1. Since this solution does not have a bearing outer sleeve 2 and the bearing limiting sleeve 134 is not located above each bearing, the size of each bearing can be increased, thereby increasing the size of the mandrel 131 to improve the load capacity of the winding spindle 100, thus enabling a high-speed design for the winding spindle 100; 2. Since this solution does not have a bearing outer sleeve 2 and the bearing limiting sleeve 134 is not located above each bearing, the size of each bearing can be increased, thereby increasing the size of the mandrel 131 to improve the load capacity of the winding spindle 100, thus enabling a high-speed design for the winding spindle 100; Since sleeve 134 is not located above each bearing, the outer diameter of chuck shaft coupling 110 can be reduced while the dimensions of each bearing remain unchanged. Consequently, the outer diameter of long sleeve 120 and the dimensions of external tensioning mechanism 140 of long sleeve 120 can be reduced accordingly, thereby realizing the large-coil design of winding spindle 100. 3. Since this solution does not have bearing outer sleeve 2 and bearing limiting sleeve 134 is not located above each bearing, the outer diameter of chuck shaft coupling 110 can be reduced while the dimensions of each bearing remain unchanged. This allows for a larger space for optimization of the dimensions of long sleeve 120, thereby optimizing the design of long sleeve 120 and increasing the rotational speed of winding spindle 100 of the same specification, further facilitating the high-speed design of winding spindle 100.

[0068] Based on the same inventive concept, this application also provides a spinning and winding machine, which includes the winding spindle 100 provided above. Typically, the spinning and winding machine also includes a base and a drive unit. The chuck shaft coupling 110 of the winding spindle 100 is fixedly connected to the base, and the end of the mandrel 131 of the winding spindle 100 away from the long sleeve 120 is drive-connected to the drive unit, so that the drive unit drives the mandrel 131 to rotate the long sleeve 120 at high speed. Since this spinning and winding machine includes the winding spindle 100 provided above, it naturally possesses all the beneficial effects of the winding spindle 100 of this application, which will not be elaborated upon here.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0070] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0071] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A winding spindle, characterized in that include: The chuck shaft connector (110) and the long sleeve (120) are provided. The chuck shaft connector (110) has a first shaft hole (111) and the long sleeve (120) has a second shaft hole (121). One side of the long sleeve (120) is fitted onto the chuck shaft connector (110). The mandrel assembly (130) includes a mandrel (131), at least two bearings, a bearing retaining sleeve (134), and a circumferential sleeve (135); Multiple bearings are spaced apart on the mandrel (131), and the bearing limiting sleeve (134) is sleeved on the mandrel (131) and located between two adjacent bearings. Along the axial direction of the mandrel (131), the two ends of the bearing limiting sleeve (134) abut against the bearing. Along the axial direction of the spindle (131), the bearings located at both ends of the plurality of bearings are a first end bearing (132) and a second end bearing (133), and the side of the first end bearing (132) and the second end bearing (133) away from the bearing limiting sleeve (134) both abut against the side wall of the first shaft hole (111). The circumferential sleeve (135) is respectively sleeved on the bearing and abuts against the inner wall of the first shaft hole (111) and the bearing; The mandrel (131) is located in the first shaft hole (111) and the second shaft hole (121), and is fixedly connected to the long sleeve (120) through the second shaft hole (121). The mandrel (131) is rotatably connected to the chuck shaft coupling (110) through the bearing.

2. The wound spindle according to claim 1, characterized in that, The mandrel assembly (130) further includes a first axial pad (136) and an axial assembly (137); the first axial pad (136) and the mandrel assembly (130) are both sleeved on the mandrel (131) and are respectively located on the side of the first end bearing (132) away from the bearing limiting sleeve (134) and the side of the second end bearing (133) away from the bearing limiting sleeve (134); Along the axial direction of the mandrel (131), the first axial pad (136) abuts against the first end bearing (132) and the inner wall of the first shaft hole (111) on both sides, and the axial assembly (137) abuts against the second end bearing (133) and the inner wall of the first shaft hole (111) on both sides.

3. The wound spindle according to claim 2, characterized in that, The axial assembly (137) includes a bearing stop (1371), a second axial damping pad (1372), and a retaining ring (1373) arranged sequentially along the axial direction of the spindle (131). The bearing stop (1371) is located close to the second end bearing (133). The second axial damping pad (1372) is installed on the bearing stop (1371). The retaining ring (1373) is engaged with the inner wall of the first shaft hole (111) to abut against the second axial damping pad (1372), the bearing stop (1371), and the second end bearing (133).

4. The wound spindle according to claim 3, characterized in that, Along the axial direction of the mandrel (131), the first end bearing (132) is positioned and mounted on the mandrel (131).

5. The wound spindle according to claim 4, characterized in that, The mandrel (131) includes a first mandrel (1311), a second mandrel (1312), and a connector (1313). The first mandrel (1311) and the second mandrel (1312) are detachably connected by the connector (1313). The connector (1313) and the second mandrel (1312) together form a first end bearing limiting groove (1314). The first end bearing (132) is installed in the first end bearing limiting groove (1314). Along the axial direction of the mandrel (131), both sides of the first end bearing (132) are in contact with the first end bearing limiting groove (1314).

6. The wound spindle according to any one of claims 1-5, characterized in that, The inner wall of the first shaft hole (111) is provided with a circumferential sleeve limiting groove (1111), and the circumferential sleeve (135) is installed in the circumferential sleeve limiting groove (1111).

7. The wound spindle according to any one of claims 1-5, characterized in that, There is a gap between the bearing limiting sleeve (134) and the mandrel (131).

8. The wound spindle according to any one of claims 1-5, characterized in that, The mandrel (131) is press-fitted with the second shaft hole (121) so that the mandrel (131) is fixedly connected to the long sleeve (120).

9. The wound spindle according to any one of claims 1-5, characterized in that, The winding spindle (100) also includes a tensioning mechanism (140), which is sleeved on the long sleeve (120) and is used to tension the bobbin (200).

10. A spinning and winding machine, characterized in that, Includes the wound spindle (100) according to any one of claims 1-9.

Images