CN215947503U

CN215947503U - Spinning frame aluminum rod spindle with firmly-installed yarn cutter

Info

Publication number: CN215947503U
Application number: CN202122295331.0U
Authority: CN
Inventors: 方保信; 吕跃勇; 刘滔
Original assignee: Tongxin Textile Machinery Wuhu Co ltd
Current assignee: Tongxin Textile Machinery Wuhu Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-03-04
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses an aluminum rod spindle of a spinning frame with a firmly-installed yarn cutter, which comprises an aluminum rod, a spindle disc, the yarn cutter and a spindle seat, wherein the aluminum rod vertically penetrates through the middle part of the spindle disc, the yarn cutter is fixedly connected to the top part of the periphery of the spindle disc, the bottom part of the aluminum rod is inserted into an inner cavity of the spindle seat, a flange step is arranged at the top part of the outer wall of the spindle disc, an annular groove is formed in the cylindrical surface on the upper side of the flange step, the yarn cutter comprises a blade frame and a blade, the blade is installed at the bottom part of the blade frame, an inner hole of the blade frame is in interference sleeve fit with the cylindrical surface on the upper part of the flange step, an outer riveting part is arranged at the top part of the blade frame, the material of the yarn cutter is embedded into the annular groove through the outer riveting part, an inner riveting part is arranged at the matching interface of the blade frame and the spindle disc at the top end of the spindle disc, and the material of the spindle disc is embedded into the blade frame through the inner riveting part. The utility model aims to solve the problems that the existing aluminum rod spindle yarn cutter of the spinning frame is not tightly installed, and the yarn cutter is inconvenient to replace when damaged.

Description

Spinning frame aluminum rod spindle with firmly-installed yarn cutter

Technical Field

The utility model relates to the technical field of spinning equipment, in particular to an aluminum rod spindle of a spinning frame, wherein a yarn cutter is firmly installed.

Background

The aluminum rod spindle is used for a ring spinning frame capable of automatically doffing integrally and consists of main parts such as an aluminum rod, a yarn cutter, a spindle disc, a spindle seat and the like, and the yarn cutter is arranged on the spindle disc. The yarn cutting device is formed by combining a yarn cutting blade and a blade frame, and the yarn cutting blade is wrapped by the blade frame and is fixed on the blade frame to form a whole. Hundreds and thousands of sets of aluminum rod spindles are arranged on an automatic doffing spinning machine, a yarn cutter is structurally arranged on the aluminum rod spindles and firmly fixed at the upper end of a spindle disc, doffing is carried out after the spinning machine is used for spinning full bobbins, and then empty bobbins are automatically inserted for continuous spinning. The service life of the aluminum rod spindle is about ten years generally. The yarn cutter of the aluminum rod spindle has the functions of cutting off tail yarn and automatically retaining ends when the spinning frame automatically doffs, and manual joints are needed when the ends are failed, so that the yarn cutter needs to be reliably connected, and blades are kept sharp. After a period of use, if the yarn cutter is loosened and rotated or falls off or the edge of the yarn cutting blade is worn down, the yarn cutter can cut continuous tail yarn, the function of the yarn cutter fails, the automatic yarn retention rate is lower and lower, and the yarn cutter or the whole spindle is required to be replaced.

In the prior art, the connecting structure of the yarn cutter of the aluminum rod spindle of the spinning frame is that the yarn cutter is firstly pressed on a spindle disc, and then the lower end surface of an aluminum rod presses the yarn cutter to be fixed on the spindle disc. This connection has the following problems: firstly, in the using process, the yarn cutter and the spindle disc are easy to loosen, so that the radial rotation can happen, the yarn cutter loses the function and cannot be repaired; secondly, the yarn cutter can not be disassembled and replaced when the yarn cutter is worn or damaged after long-term use, only a complete set of spindles can be replaced, and the fault downtime and the accessory consumption are increased.

Aiming at the technical problems, the utility model discloses a spinning frame aluminum rod spindle with a firmly-installed yarn cutter, which has the advantages of improving the installation tightness of the yarn cutter, preventing the yarn cutter from loosening and rotating, facilitating the replacement of the yarn cutter and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides an aluminum rod spindle of a spinning frame with a firmly-installed yarn cutter, so as to solve the technical problems that the yarn cutter and a spindle disc are easy to loosen and rotate in the circumferential direction, the yarn cutter is inconvenient to replace when damaged and the like in the prior art. The utility model has the advantages of improving the installation tightness of the yarn cutter, preventing the yarn cutter from loosening and rotating, facilitating the replacement of the yarn cutter and the like.

The utility model is realized by the following technical scheme: the utility model discloses an aluminum rod spindle of a spinning frame with a firmly-installed yarn cutter, which comprises an aluminum rod, a spindle disc, a yarn cutter and a spindle seat, wherein the aluminum rod vertically penetrates through the middle part of the spindle disc, the yarn cutter is fixedly connected to the top part of the periphery of the spindle disc, a combined body is formed among the aluminum rod, the spindle disc and the yarn cutter, the bottom part of the aluminum rod is inserted into an inner cavity of the spindle seat, the spindle disc is made of steel, a flange step is arranged at the top part of the outer wall of the spindle disc, an annular groove is arranged on the cylindrical surface on the upper side of the flange step, the yarn cutter comprises a blade frame and a blade, the blade frame is fixedly installed at the bottom part of the blade frame, the blade frame is sleeved at the upper part of the flange step, the inner hole of the blade frame is in interference sleeve fit with the cylindrical surface on the upper part of the flange step, the annular groove is positioned in the inner hole of the blade frame, the material of the blade frame is aluminum, an outer riveting part is arranged at the top part of the blade frame, the material of the yarn cutter is embedded into the annular groove through the outer riveting part, the top end of the spindle disc is provided with an inner riveting part at the matching interface of the blade frame and the spindle disc, the material of the spindle disc is embedded into the blade frame through the inner riveting part, and the inner riveting part and the outer riveting part are staggered.

Preferably, in order to improve the installation tightness of the yarn cutter, the diameter of the cylindrical surface of the spindle disk on the upper part of the flange step is larger than that of the bottom of the aluminum rod, the height of the cylindrical surface of the spindle disk on the upper part of the flange step is equal to that of the yarn cutter, and the annular groove is arranged in the middle of the cylindrical surface on the upper part of the flange step.

Preferably, in order to improve the fastening nature of cutting the installation of yarn ware, the top of blade frame is around the even outer riveting portion that is not less than two places that is provided with of aluminium pole interval, and outer riveting portion is the arc shape, and outer riveting portion rivets inwards.

Preferably, in order to improve the tightness of the yarn cutter installation, at least two inner riveting parts are uniformly arranged at intervals around the aluminum rod at the top end of the spindle disc, the inner riveting parts are arc-shaped, and the inner riveting parts are riveted outwards.

The utility model has the following advantages: according to the utility model, the material of the blade holder is squeezed into the annular groove at the top of the spindle disc through the riveting of the outer riveting part, so that the situation that the yarn cutter is axially moved in a string manner is prevented; the spindle disc is made of materials to be extruded into the blade frame through riveting of the inner riveting portion, so that the yarn cutting device is prevented from rotating in the circumferential direction, and axial firmness is further enhanced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a spindle plate structure;

FIG. 3 is an enlarged view of the structure at C in FIG. 2;

FIG. 4 is a sectional view of the spindle blade, spindle disk and yarn cutter mounting structure;

FIG. 5 is an enlarged view of the structure at A in FIG. 1;

FIG. 6 is an enlarged view of the structure at B in FIG. 1;

fig. 7 is a schematic view of a mounting structure of a spindle yarn cutter of a conventional spinning machine.

In the figure: 1. an aluminum rod; 2. a spindle plate; 21. a flange step; 22. an annular groove; 23. an inner riveting part; 231. internally riveting the embedded body; 3. a yarn cutter; 31. a blade holder; 311. an outer riveting part; 32. a blade; 4. and (4) an ingot holder.

Detailed Description

The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.

Example 1

Embodiment 1 discloses a spinning frame aluminum rod spindle with a firmly-installed yarn cutter, as shown in fig. 1, the spinning frame aluminum rod spindle comprises an aluminum rod 1, a spindle disc 2, a yarn cutter 3 and a spindle base 4, the aluminum rod 1 vertically penetrates through the middle of the spindle disc 2, the yarn cutter 3 is fixedly connected to the top of the periphery of the spindle disc 2, a combination body is formed among the aluminum rod 1, the spindle disc 2 and the yarn cutter 3, the bottom of the aluminum rod 1 is inserted into an inner cavity of the spindle base 4, and the spindle disc 2 is made of steel; as shown in fig. 2 and 3, a flange step 21 is arranged at the top of the outer wall of the spindle disc 2, an annular groove 22 is arranged on the cylindrical surface of the upper side of the flange step 21, specifically, the diameter of the cylindrical surface of the spindle disc 2 on the upper part of the flange step 21 is larger than that of the bottom of the aluminum rod 1, the height of the cylindrical surface of the spindle disc 2 on the upper part of the flange step 21 is equal to that of the yarn cutter 3, the annular groove 22 is arranged in the middle of the cylindrical surface on the upper part of the flange step 21, and the annular groove 22 may be in different shapes, for example, the section of the annular groove 22 is "triangular", "trapezoidal", "rectangular", etc.; as shown in fig. 4, the yarn cutter 3 comprises a blade holder 31 and a blade 32, and the blade 32 is fixedly arranged at the bottom of the blade holder 31; as shown in fig. 1, 4, 5 and 6, the blade holder 31 is sleeved on the upper portion of the flange step 21, the inner hole of the blade holder 31 is in interference fit with the cylindrical surface of the upper portion of the flange step 21, the annular groove 22 is located in the inner hole of the blade holder 31, the blade holder 31 is made of aluminum, so that the blade holder 31 is made of soft material, the outer riveting is facilitated to extrude the material of the blade holder 31 into the annular groove 22 and the inner riveting is facilitated to extrude the material of the spindle disk 2 into the inner portion of the blade holder 31, the top of the spindle disk 2 is provided with the inner riveting portion 23 at the matching interface between the blade holder 31 and the spindle disk 2, the material of the spindle disk 2 is embedded into the inner portion of the blade holder 31 through the inner riveting portion 23, the inner riveting portion 23 is staggered from the outer riveting portion 311, the top of the blade holder 31 is provided with at least two outer riveting portions 311 at uniform intervals around the aluminum rod 1, the outer riveting part 311 is arc-shaped, the outer riveting part 311 is riveted inwards, the top end of the spindle disk 2 is uniformly provided with at least two inner riveting parts 23 at intervals around the aluminum rod 1, the inner riveting parts 23 are arc-shaped, and the inner riveting parts 23 are riveted outwards.

The principle of the utility model is as follows: as shown in fig. 7, in the prior art, a yarn cutter 3 is fixedly sleeved on the periphery of the top of a spindle disc 2 and is in interference fit with the spindle disc 2, and then the yarn cutter 3 is pressed from the top of the yarn cutter 3 when an aluminum rod 1 and the spindle disc 2 are fixedly mounted, in the present invention, the material of a blade holder 31 is squeezed into an annular groove 22 at the top of the spindle disc 2 by riveting of an outer riveting part 311, so that the yarn cutter 3 is prevented from axial movement; through the riveting of the inner riveting part 23, the material of the spindle disc 2 is squeezed into the blade holder 31 to form the inner riveting embedding body 231, as shown in fig. 6, thereby preventing the yarn cutter 3 from rotating in the circumferential direction and further enhancing the connection firmness of the yarn cutter 3, and further realizing the fastening installation of the yarn cutter 3, the yarn cutter 3 can not generate the conditions of axial movement and circumferential rotation in the using process of the spindle, meanwhile, when the yarn cutter 3 is damaged, the yarn cutter 3 can be detached only by prying the yarn cutter 3 to separate the inner riveting part 23 from the outer riveting part 311, and a new yarn cutter cylindrical surface 3 is fixedly sleeved on the upper part of the flange step 21 for outer riveting and inner riveting, so that the yarn cutter 3 can be conveniently replaced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. An aluminum rod spindle of a spinning frame with a firmly-installed yarn cutter is characterized by comprising an aluminum rod, a spindle disc, a yarn cutter and a spindle seat, wherein the aluminum rod vertically penetrates through the middle of the spindle disc, the yarn cutter is fixedly connected to the top of the periphery of the spindle disc, the aluminum rod, the spindle disc and the yarn cutter form a combined body, the bottom of the aluminum rod is inserted into an inner cavity of the spindle seat, the spindle disc is made of steel, a flange step is arranged on the top of the outer wall of the spindle disc, an annular groove is formed in a cylindrical surface on the upper side of the flange step, the yarn cutter comprises a blade holder and a blade, the blade is fixedly installed at the bottom of the blade holder, the blade holder is sleeved on the upper portion of the flange step, an inner hole of the blade holder is in interference fit with the cylindrical surface on the upper portion of the flange step, and the annular groove is located in the inner hole of the blade holder, the material of the blade frame is aluminum, an outer riveting part is arranged at the top of the blade frame, the material of the yarn cutter is embedded into the annular groove through the outer riveting part, an inner riveting part is arranged at the position, located at the matching interface of the blade frame and the spindle disc, of the top end of the spindle disc, the material of the spindle disc is embedded into the blade frame through the inner riveting part, and the inner riveting part and the outer riveting part are staggered in position.

2. The aluminum bar spindle of the spinning frame with the firmly installed yarn cutter as claimed in claim 1, wherein the diameter of the cylindrical surface of the spindle disk on the upper part of the flange step is larger than that of the bottom of the aluminum bar, the height of the cylindrical surface of the spindle disk on the upper part of the flange step is equal to that of the yarn cutter, and the annular groove is located in the middle of the cylindrical surface of the upper part of the flange step.

3. The aluminum bar spindle of the spinning frame with the firmly installed yarn cutter as claimed in claim 1, wherein at least two outer riveting portions are evenly arranged at intervals around the aluminum bar at the top end of the blade holder, the outer riveting portions are in an arc shape, and the outer riveting portions are riveted inwards.

4. The aluminum rod spindle of the spinning frame with the firmly installed yarn cutter as claimed in claim 1, wherein the top end of the spindle disc is provided with at least two inner riveting parts at regular intervals around the aluminum rod, the inner riveting parts are arc-shaped, and the inner riveting parts are riveted outwards.