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centrifugal spinning frame

A spinning frame and centrifugal technology, applied in spinning machines, continuous winding spinning machines, textiles and papermaking, etc., can solve problems such as yarn cake damage, high winding failure, and difficulty in removing the inner cover, etc. To achieve the effect of increasing the success rate

Active Publication Date: 2022-03-22
TOYOTA IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when opening the inner cover, it is necessary to remove the inner cover from the centrifuge tank. At this time, if the rotation of the centrifuge tank is stopped, or the rotation speed of the centrifuge tank is excessively reduced, the yarn cake will be destroyed due to the disappearance or reduction of the centrifugal force.
In addition, in order to avoid damage to the yarn cake and maintain the rotation speed of the centrifuge tank above the specified level, it is extremely difficult to remove the inner cover from the centrifuge tank on a technical level
In addition, if the inner cover is not attached to the centrifuge tank and the opening of the centrifuge tank is kept open to break the yarn, the thread end part caused by the broken yarn will be discharged to the outside of the centrifuge tank through the opening of the centrifuge tank. Possibility of failure in rewinding to the bobbin increases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0041]

[0042] figure 1 It is a schematic diagram showing the structure of the centrifugal spinning frame according to the first embodiment of the present invention.

[0043] Such as figure 1 As shown, the centrifugal spinning frame 1 includes a drafting device 10 , a hair suction tube 12 , a yarn guide tube 14 , a centrifugal tank 16 , a fixed cover 18 , a bobbin support portion 20 and a cover 50 . In addition, the above-mentioned constituent elements constitute one spindle as one unit of spinning. The centrifugal spinning frame 1 includes a plurality of spindles, and the structure of one of the spindles will be described here.

[0044] (drafting device)

[0045] The drafting device 10 is a device for drawing a yarn material. The draft device 10 is configured using a plurality of roller pairs including a rear roller pair 21 , an intermediate roller pair 22 , and a front roller pair 23 . The plurality of roller pairs are arranged in the order of the rear roller pair 21...

no. 1 approach effect

[0128] In the first embodiment of the present invention, the following structure is adopted, that is, the cover 50 that closes the cover opening 28 of the fixed cover 18 is provided, and when the cover opening 28 is closed with the cover 50, the centrifuge tank 16 is used to The protruding portion 52 arranged inward is configured to guide the yarn toward the inner wall 29 of the centrifuge tank 16 . Accordingly, the yarn serving as the winding starting point can be reliably wound around the inner wall region 29 a of the centrifugal pot 16 . Therefore, the success rate of rewinding to the bobbin 30 can be improved without technical difficulties such as removing the inner cover from the rotating centrifuge can.

[0129] In addition, in the first embodiment of the present invention, when the cover opening 28 of the fixed cover 18 is closed by the cover 50, the entry amount Lb of the protruding part 52 based on the lower end part 16a of the centrifuge tank 16 is ensured as 0.1mm ...

no. 2 approach

[0132] However, in the case of yarn breakage as described above, a part of the yarn protruding from the yarn discharge port 14b of the yarn guide tube 14 is separated from the inner wall 29 of the centrifuge tank 16 and exists in the space in the centrifuge tank 16 as it is. Condition. Thus, the yarns that exist away from the inner wall 29 of the centrifuge pot 16 are called "chords". In this specification, the yarn forming the string is referred to as "string yarn". The string yarn is bent by the centrifugal force accompanying the rotation of the centrifuge pot 16 , and exists independently from the yarn wound around the inner wall 29 of the centrifuge pot 16 .

[0133] As described above, if the string yarn exists in the space in the centrifuge tank 16 , the string yarn may come into contact with the outer peripheral surface of the yarn guide tube 14 , so that the string yarn may be wound around the yarn guide tube 14 . In addition, for example, when the bobbin 30 is inser...

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Abstract

The present invention provides a centrifugal spinning frame capable of increasing the success rate of rewinding to a bobbin, and overcomes technical difficulties such as removing an inner cover from a rotating centrifugal tank. The centrifugal spinning frame (1) of the present invention includes: a centrifugal tank (16) having an opening (26) of the centrifugal tank, a yarn guide tube (14) for guiding a yarn (25) into the centrifugal tank (16), a A cover (18) is fixed to the opening (28), and a cover (50) for opening and closing the cover opening (28). When the cover opening (28) is closed by the cover (50), the cover (50) enters the centrifuge tank (16) through the centrifuge tank opening (26) and is configured. The protrusion (52) guides the yarn discharged from the yarn discharge port (14b) of the yarn guide tube (14) toward the inner wall (29) of the centrifugal tank (16).

Description

technical field [0001] The present invention relates to a centrifugal spinning frame. Background technique [0002] As one of spinning frames, a centrifugal spinning frame including a cylindrical centrifugal pot is known. In the centrifugal spinning frame, first, a yarn is introduced into a centrifuge tank rotating at high speed through a yarn guide bobbin, and the introduced yarn is wound around the inner wall of the centrifuge tank by the centrifugal force accompanying the rotation of the centrifuge tank. At this time, the position of the yarn guide tube is gradually displaced downward while repeatedly reciprocating in the direction of the central axis of the centrifuge tank, thereby forming a yarn cake on the inner wall of the centrifuge tank. Next, after the yarn is broken to stop the supply of the yarn to the yarn guide bobbin, the yarn is wound back to the bobbin inserted into the centrifuge pot. At this time, if a centrifuge tank having an opening of the centrifuge ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01H1/08
CPCD01H1/08
Inventor 中村祐介槌田大辅佐藤江平
Owner TOYOTA IND CORP
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