A synchronous shaft of roving frame

Abstract

The utility model discloses a synchronous shaft of a roving machine, comprising a synchronous shaft main body, wherein two sections of external threads with opposite rotation directions are arranged on the shaft body of the synchronous shaft main body, threaded cones are threadedly connected to the two sections of external threads, one end of the threaded cone is a narrow diameter end, and the other end is a wide diameter end, the outer diameter of the narrow diameter end is smaller than the outer diameter of the wide diameter end, and the narrow diameter ends of the two threaded cones are arranged facing each other. The leather cover is fixed by threading two threaded cones with a certain taper on the synchronous shaft main body, and the leather cover can be easily disassembled and assembled by disassembling and assembling the threaded cones, and the replacement of the leather cover is time-saving and labor-saving, and the efficiency is high, and the leather roller will not be damaged; the two sections of external threads on the synchronous shaft main body have opposite rotation directions, and rotate in one direction when the synchronous shaft main body is working, and a thrust to move inwards is given to the two threaded cones through the external threads, so that the positions of the two threaded cones on the synchronous shaft main body are kept fixed and will not be separated from the synchronous shaft main body, thereby ensuring the normal operation of the leather roller.

Description

Technical Field

[0001] The utility model relates to the technical field of roving frames, in particular to a synchronous shaft of a roving frame. Background Art

[0002] The roving frame is a spinning machine that turns fiber strips into roving. It is the most critical step in the textile process that affects the spinning quality. Its process consists of four parts: feeding, drafting, twisting, and winding. The drafting mechanism is the main component of the roving frame. After the slivers are fed into the drafting mechanism, they are stretched and thinned under the action of the pairs of rollers in the traction mechanism. The lower roller is a knurled type, and the upper roller is a ball bearing leather roller.

[0003] The top roller adopts a leather roller design. The leather roller is composed of a synchronous shaft and a leather cover fixedly connected together. The leather cover of the leather roller is easy to wear after long-term use. The leather roller with a worn leather cover cannot effectively control the movement of the fiber, affecting the quality of the yarn.

[0004] Since the synchronous shaft and the leather cover are tightly connected together, it is difficult to replace the leather cover. In the prior art, the leather cover on the leather roller is generally peeled off manually, which increases the labor intensity of workers and reduces production efficiency. Some leather covers are difficult to remove, and violent removal may also cause damage to the leather roller. New leather rollers can only be replaced, which increases the cost of spinning. Utility Model Content

[0005] Based on this, it is necessary to provide a roving machine synchronous shaft with a leather cover that is easy to disassemble and assemble in order to solve the technical problem that the synchronous shaft and the leather cover are difficult to disassemble and assemble.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a roving machine synchronous shaft, including a synchronous shaft main body, the shaft body of the synchronous shaft main body is provided with two sections of external threads with opposite rotation directions, the two sections of external threads of the synchronous shaft main body are threadedly connected with threaded cones, the outer walls of the two threaded cones are both tapered, one end of the threaded cone is a narrow diameter end, and the other end is a wide diameter end, the outer diameter of the narrow diameter end is smaller than the outer diameter of the wide diameter end, and the narrow diameter ends of the two threaded cones are arranged facing each other.

[0007] Optionally, the narrow diameter ends of the two threaded cones are abutted against each other.

[0008] Optionally, the two sections of external threads have the same length.

[0009] Optionally, the wide diameter end of the threaded cone is provided with a flange.

[0010] Optionally, the peripheries of the two threaded cones form a limiting space for installing the leather case, and the shape of the leather case is adapted to the limiting space.

[0011] Compared with the prior art, this technical solution has at least one of the following beneficial effects:

[0012] The leather cover is fixed by threading two thread cones with a certain taper on the main body of the synchronous shaft. The leather cover can be easily disassembled and assembled by disassembling and assembling the thread cones. The replacement of the leather cover saves time and effort, is highly efficient, and will not damage the leather roller.

[0013] The two sections of external threads on the synchronous shaft body rotate in opposite directions. When the synchronous shaft body is working, it rotates in one direction. The external threads give the two threaded cones a thrust to move inward, so that the positions of the two threaded cones on the synchronous shaft body remain fixed and will not separate from the synchronous shaft body, thereby ensuring the normal operation of the leather roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a roving frame synchronous shaft according to an embodiment of the utility model;

[0015] Figure 2 This is a structural schematic diagram of a roving frame synchronous shaft after a leather cover is installed in an embodiment of the utility model;

[0016] Figure 3 for Figure 2 Exploded view of;

[0017] Figure 4 This is an exploded schematic diagram of a roving frame synchronous shaft according to an embodiment of the utility model;

[0018] In the figure, 1. synchronous shaft body; 2. external thread; 3. threaded cone; 4. flanging; 5. limiting space; 6. leather cover. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0020] See also Figures 1 to 4 The embodiment of the present application provides a roving frame synchronous shaft, including a synchronous shaft body 1, the shaft of the synchronous shaft body 1 is provided with two sections of external threads 2 with opposite rotation directions, the two sections of external threads 2 of the synchronous shaft body 1 are both threadedly connected with thread cones 3, the outer walls of the two thread cones 3 are both tapered, one end of the thread cone 3 is a narrow diameter end, and the other end is a wide diameter end, the outer diameter of the narrow diameter end is smaller than the outer diameter of the wide diameter end, and the narrow diameter ends of the two thread cones 3 are arranged facing each other. The peripheries of the two thread cones 3 form a limiting space 5 for installing a leather case 6, and the shape of the leather case 6 is adapted to the limiting space 5.

[0021] When the roving frame synchronous shaft of this embodiment is used, a leather cover 6 adapted to the limiting space 5 is assembled, and the inner wall of the leather cover 6 is in contact with the outer wall of the threaded cone 3;

[0022] During installation, one of the threaded cone cylinders 3 is first installed on the corresponding external thread 2, and then the leather case 6 is mounted on the threaded cone cylinder 3. Since the threaded cone cylinder 3 has a certain taper, the leather case 6 can be smoothly and conveniently installed on the threaded cone cylinder 3; then the other threaded cone cylinder 3 is installed on the corresponding external thread 2. Since the threaded cone cylinder 3 has a certain taper, it can also be smoothly inserted into the leather case 6. Only when the threaded cone cylinder 3 is finally tightened, the threaded cone cylinder 3 and the leather case 6 are completely fitted, and there will be a little resistance, so that the leather case 6 can be conveniently installed;

[0023] Since the two sections of external threads 2 on the synchronous shaft body 1 rotate in opposite directions, when the leather cover 6 and the threaded cone 3 remain stationary, the synchronous shaft body 1 keeps rotating in the forward direction, and the external threads 2 give the two threaded cones 3 a thrust to move inward, so that the positions of the two threaded cones 3 on the synchronous shaft body 1 remain fixed and will not move in opposite directions and cause separation from the synchronous shaft body 1;

[0024] It can be seen that when the synchronous shaft body 1 rotates in the positive direction during operation, the synchronous shaft body 1 will give the two threaded cones 3 a close-together extrusion force through the external thread 2, so that the positions of the two threaded cones 3 on the synchronous shaft body 1 remain fixed, so that the position of the leather cover 6 is fixed;

[0025] When the leather cover 6 needs to be replaced, first clamp and fix the synchronous shaft body 1, then use a tool wrench to rotate one of the threaded cones 3, remove the threaded cone 3 from the synchronous shaft body 1, and then directly remove the leather cover 6. The operation is simple, the replacement of the leather cover 6 saves time and effort, is highly efficient, and will not damage the leather roller.

[0026] In one embodiment, in order to stably support the leather case 6, the narrow diameter ends of the two threaded cones 3 are optionally arranged to abut against each other. In this way, the middle of the leather case 6 can fit with the narrow diameter ends of the two threaded cones 3, and there will be no gap in the middle of the leather case 6. The threaded cones 3 stably support the leather case 6, thereby increasing the service life of the belt.

[0027] In one embodiment, in order to keep the positions of the two threaded cones 3 on the synchronous shaft body 1 symmetrical and to enable the leather cover 6 to be centered after installation, the lengths of the two sections of external threads 2 are optionally set to be the same. The distances between the two sections of external threads 2 and the center of the synchronous shaft body 1 are the same, so that after the two threaded cones 3 are installed on the synchronous shaft body 1, the distances between the two sections of external threads 2 and the center of the synchronous shaft body 1 are the same. After the leather cover 6 is installed on the two threaded cones 3, it can be centered on the synchronous shaft body 1, which is convenient for stable operation.

[0028] In one embodiment, in order to prevent the leather cover 6 from being separated from the threaded cone 3 due to thermal expansion when the taper of the threaded cone 3 is set to be small, optionally, a flange 4 is provided at the wide diameter end of the threaded cone 3. The leather cover 6 is limited between the two turns, and the flange 4 can block the leather cover 6 to prevent the leather cover 6 from being separated from the threaded cone 3 due to thermal expansion.

[0029] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0030] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A roving frame synchronous shaft, comprising a synchronous shaft body (1), characterized in that: The shaft of the synchronous shaft body (1) is provided with two sections of external threads (2) with opposite rotation directions. The two sections of external threads (2) of the synchronous shaft body (1) are both threadedly connected with threaded cones (3). The outer walls of the two threaded cones (3) are both tapered. One end of the threaded cones (3) is a narrow diameter end and the other end is a wide diameter end. The outer diameter of the narrow diameter end is smaller than the outer diameter of the wide diameter end. The narrow diameter ends of the two threaded cones (3) are arranged facing each other.

2. The roving frame synchronous shaft according to claim 1, characterized in that: The narrow diameter ends of the two threaded cones (3) are in contact with each other.

3. The roving frame synchronous shaft according to claim 1, characterized in that: The two sections of external threads (2) have the same length.

4. The roving frame synchronous shaft according to claim 1, characterized in that: The wide diameter end of the threaded cone (3) is provided with a flange (4).

5. The roving frame synchronous shaft according to claim 1, characterized in that: The peripheries of the two threaded cones (3) form a limiting space (5) for installing the leather cover (6), and the shape of the leather cover (6) is adapted to the limiting space (5).

Images