Hollow spindle assembly of full-wrapping type twisting machine

Abstract

The utility model discloses a hollow spindle assembly of a full-wrapping type twisting machine, which comprises a spindle seat, a spindle shell, a spindle blade and a wharve, the spindle shell is cylindrical and is sleeved at the lower position of the middle of the spindle blade, the wharve is sleeved and fixed at the lower end of the spindle blade and is positioned below the spindle shell, the wharve and the spindle shell are both mounted in the spindle seat, and the spindle seat is fixed on the spindle shell. The upper end of the spindle shell extends out of an inner cavity of the spindle seat, a sealing piece is arranged at the lower end of the spindle shell, the upper end face of the sealing piece is fixedly connected with the lower end face of the spindle shell, a through hole is formed in the middle of the sealing piece, and the sealing piece is connected to the wharve in a sleeved mode through the through hole and is matched with the wharve in a rotating mode. The hollow structure between the spindle shell and the spindle seat is filled through the sealing piece, the phenomenon of wire winding is not prone to occurring, and the machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of textile equipment technology, and in particular to a hollow spindle assembly for a fully enclosed twisting machine. Background Technology

[0002] The spindle is an important component in textile machinery, especially in spinning machines. It is used to hold yarn bobbins for feeding yarn. The spindle rod on which the yarn bobbins are mounted is driven to rotate by the machine's drive belt. Since it is necessary to replace the yarn bobbins and connect new yarn, the spindle rod needs to be disengaged from the drive belt. Therefore, the spindle rod also needs to be able to swing to disengage or tilt to disengage.

[0003] Chinese Patent Publication No. CN221940725U discloses a high-speed twisted hollow spindle with a bottom-mounted spindle disc. The spindle has a shell, a spindle assembly on one side, and a spindle fixing assembly on the other side. The spindle assembly includes a spindle rod and a spindle disc. The spindle rod is housed within the spindle shell and has an upper bearing and a lower bearing. The spindle disc is mounted on the spindle rod and positioned below the lower bearing. By adopting a bottom-mounted spindle disc structure, placing the spindle disc below the upper and lower bearings of the spindle rod, the overall length of the twisted hollow spindle is shortened, resulting in a more compact structure, better balance, and stable operation without shaking during high-speed operation, thus avoiding noise generation.

[0004] However, the aforementioned spindles frequently experience wire entanglement during use, requiring machine shutdown for cleaning and reducing work efficiency. To address this issue, a solution is proposed below. Utility Model Content

[0005] The purpose of this invention is to provide a hollow spindle assembly for a fully enclosed twisting machine, which has the advantages of avoiding wire tangling while operating at high speed and improving work efficiency.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A hollow spindle assembly for a fully enclosed twisting machine includes a spindle seat, a spindle shell, a spindle rod, and a spindle disc. The spindle shell is cylindrical and fitted onto the lower part of the spindle rod. The spindle disc is fitted and fixed to the lower end of the spindle rod and is located below the spindle shell. Both the spindle disc and the spindle shell are installed inside the spindle seat. The upper end of the spindle shell extends out of the inner cavity of the spindle seat. A sealing element is provided at the lower end of the spindle shell. The upper end face of the sealing element is fixedly connected to the lower end face of the spindle shell. A through hole is provided in the middle of the sealing element. The sealing element is fitted onto the spindle disc through the through hole and rotates with the spindle disc.

[0008] Preferably, an upper bearing and a lower bearing are fixed on the spindle rod, the distance between the upper bearing and the lower bearing is less than the length of the spindle shell, and rubber pads are fixed on the outer edges of the upper bearing and the lower bearing. Several positioning strips are provided on the outer edges of the rubber pads, and the several positioning strips are engaged with several positioning grooves on the inner wall of the spindle shell. The spindle shell is sleeved on the outside of the two bearings and is fixedly connected to the outer edges of the two rubber pads.

[0009] Preferably, the spindle shell is provided with a gasket, and the upper end of the inner cavity of the spindle shell is provided with an upper mounting cavity. The inner diameter of the upper mounting cavity is larger than the inner diameter of the other parts of the spindle inner cavity. The gasket is fixed to the lowermost side of the upper mounting cavity. The outer diameter of the gasket is the same as the inner diameter of the upper mounting cavity. The gasket is used to support the upper rubber pad.

[0010] Preferably, the sealing element includes an outer ring and an inner ring. The outer ring is located on the upper end face of the inner ring and is fixed to the lower end face of the spindle shell. The inner ring and the outer ring are designed as an integral piece, and the inner ring is fixed on the lower end face of the outer ring near the center. The inner ring and the outer ring have the same inner diameter. The inner ring is sleeved on the outer circumference of the spindle disc and rotates with the spindle disc.

[0011] The beneficial effects of this utility model are as follows: the sealing element fills the gap between the spindle shell and the spindle plate, reducing the probability of wire entanglement at this location; the spindle rod in this design adopts a fully enclosed design, that is, no grease holes are opened, reducing the probability of wire entanglement. The structures at both locations work together to greatly reduce the probability of wire entanglement in the spindle assembly of this application, thereby improving work efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the internal structure of the spindle shell in an embodiment;

[0013] Figure 2 This is a schematic diagram of the structure of the spindle holder in the embodiment;

[0014] Figure 3 This is a structural diagram of the spindle assembly in an embodiment.

[0015] Reference numerals in the attached drawings: 1. Spindle seat; 2. Spindle shell; 3. Spindle rod; 4. Spindle disc; 5. Seal; 51. Outer ring; 52. Inner ring; 6. Upper bearing; 7. Lower bearing; 8. Rubber pad; 9. Gasket. Detailed Implementation

[0016] The following description is merely a preferred embodiment of this utility model, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of this utility model's concept should be protected. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom" and "top," "inner" and "outer" refer to directions toward or away from the geometric center of a specific component.

[0017] like Figure 1 and Figure 3 As shown, a hollow spindle assembly for a fully enclosed twisting machine includes a spindle seat, a spindle shell, a spindle rod, and a spindle disc. The spindle seat is the mechanism for connecting to the external structure. In this design, the spindle seat remains unchanged and adopts a structure similar to existing equipment. Its external structure is set according to the installation location. The part relevant to the technical points of this design is its inner cavity, in which both the spindle disc and the spindle shell are installed.

[0018] The spindle shell is cylindrical and installed inside the spindle holder. The spindle disc is fitted and fixed to the lower end of the spindle rod. The spindle disc and the spindle rod are fixedly connected. The spindle disc will be installed into the inner cavity of the spindle holder. A bottom rod is fixed at the lower end of the spindle disc. The bottom rod will pass through the lower end of the inner cavity of the spindle holder and be located on the outside of the spindle holder.

[0019] There is a certain gap between the spindle tray and the lower end face of the spindle shell. In this design, a sealing element is provided at the lower end of the spindle shell to reduce the gap between it and the spindle tray.

[0020] The seal consists of an outer ring and an inner ring, which are integrally designed. The outer ring is located on the upper end face of the inner ring and is fixed to the lower end face of the spindle shell. The inner ring is fixed to the lower end face of the outer ring near its center, and the inner and outer rings have the same inner diameter. The inner ring is fitted around the outer circumference of the spindle disc and rotates with it. The inner diameter of the inner ring is slightly larger than the outer diameter of the spindle disc, with a small gap between them. This gap does not hinder the rotation of the spindle disc, and because of the small gap, it prevents wire tangling.

[0021] After the spindle shell is installed into the inner cavity of the spindle holder, a portion of the upper part of the spindle shell will protrude above the inner cavity of the spindle holder. In actual use, it will be surrounded by the structure of other parts of the spindle holder, making the spindle shell less prone to damage.

[0022] The spindle housing is fitted onto the lower middle part of the spindle rod, and this position is designated as the spindle rod's mounting position. The spindle disc is located below the spindle housing, i.e., below the mounting position. An upper bearing and a lower bearing are installed at the mounting position. The upper and lower bearings are independent bearings, respectively fitted onto the upper and lower ends of the mounting position. The inner edges of the two bearings are fixedly connected to the mounting position, and rubber pads are fixedly installed on the outer edges of both bearings. The spindle housing is fitted onto the two rubber pads and is locked in place with them.

[0023] The distance between the upper and lower bearings is less than the length of the spindle housing. After the spindle housing is installed in the mounting position, it will completely cover the upper and lower bearings, protecting the two bearings from damage.

[0024] Several positioning strips are provided on the outer edge of the rubber pad, and these positioning strips engage with several positioning grooves on the inner wall of the spindle shell to prevent slippage between the rubber pad and the spindle shell. Due to the properties of the rubber material, the rubber pad can absorb shock, thereby effectively reducing noise.

[0025] Existing technologies often include grease holes on the spindle rod. This design, however, uses a fully enclosed spindle design without these holes, further reducing the probability of wire tangling. Furthermore, existing technologies require a connecting bracket to link the two bearings before the spindle housing is fixed to the outside of that bracket. This design uses two independent bearings, facilitating disassembly and maintenance.

[0026] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hollow spindle assembly for a fully enclosed twisting machine, comprising a spindle seat, a spindle shell, a spindle rod, and a spindle disc, characterized in that, The spindle shell is cylindrical and is fitted onto the lower part of the spindle rod. The spindle disc is fitted and fixed to the lower end of the spindle rod, and the spindle disc is located below the spindle shell. Both the spindle disc and the spindle shell are installed inside the spindle seat. The upper end of the spindle shell extends out of the inner cavity of the spindle seat. A sealing element is provided at the lower end of the spindle shell. The upper end face of the sealing element is fixedly connected to the lower end face of the spindle shell. A through hole is provided in the middle of the sealing element. The sealing element is fitted onto the spindle disc through the through hole and rotates with the spindle disc.

2. The hollow spindle assembly of a fully enclosed twisting machine according to claim 1, characterized in that, An upper bearing and a lower bearing are fixed on the spindle rod. The distance between the upper bearing and the lower bearing is less than the length of the spindle shell. Rubber pads are fixed on the outer edges of the upper bearing and the lower bearing. Several positioning strips are provided on the outer edges of the rubber pads. The positioning strips are engaged with several positioning grooves on the inner wall of the spindle shell. The spindle shell is sleeved on the outside of the two bearings and is fixedly connected to the outer edges of the two rubber pads.

3. The hollow spindle assembly of a fully enclosed twisting machine according to claim 1, characterized in that, The spindle shell is provided with a gasket, and the upper end of the inner cavity of the spindle shell is provided with an upper mounting cavity. The inner diameter of the upper mounting cavity is larger than the inner diameter of the other parts of the spindle inner cavity. The gasket is fixed to the lowermost side of the upper mounting cavity. The outer diameter of the gasket is the same as the inner diameter of the upper mounting cavity. The gasket is used to support the upper rubber pad.

4. The hollow spindle assembly of a fully enclosed twisting machine according to claim 1, characterized in that, The sealing element includes an outer ring and an inner ring. The outer ring is located on the upper end face of the inner ring and is fixed to the lower end face of the spindle shell. The inner ring and the outer ring are designed as a single piece, and the inner ring is fixed on the lower end face of the outer ring near the center. The inner and outer rings have the same inner diameter. The inner ring is sleeved on the outer circumference of the spindle disc and rotates with the spindle disc.

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