US2953895A - Device for lubricating spindles in twisting frames - Google Patents

Description

Sept. 27, 1960 P. DALIX DEVICE FOR LUBRICATING SPXNDLES IN TWISTING FRAMES Filed Dec. 5, 1958 rfOE/WFY United States Patent DEVICE FOR LUBRICATING SPINDLES IN TWISTING FRAMES Paul Dalix, Vaulx-en-Velin, France, assignor to Chimie tex Societe Anonyme, Geneva, Switzerland, a corporation of Switzerland Filed Dec. '5, 1958, Ser. No. 778,464 Claims priority, application France Dec. 6, 1957 1 Claim. (Cl. 57-133) This invention relates to twisting frames and has for an object to provide novel and improved means for lubricating the spindles.

In cap twisting frames of the type commonly in use, the caps are mounted on fixed vertical spindles on which sleeves slide with a reciprocating vertical movement. The sleeves in turn carry rotating supports by means of which the cop or take-up bobbin is centered and driven. Each sleeve is attached to a spindle plate which is actuated with appropriate reciprocating movement for the adjustment of the stroke. The sliding sleeve dips into the oil contained in a fixed cup concentric with and attached to the spindle each time it passes through its lower dead center position in its vertical reciprocating movement.

A disc member mounted at the lower end of the sliding sleeve carries away a small reserve of oil in each of its upward movements and 'effects, through ports formed in the sliding sleeve, the necessary lubrication for the movement of the latter on the spindle.

This lubricating device as heretofore used has serious disadvantages. It is difficult to prevent oil leakages from the cup and, quite apart from the loss of oil, the flow of oil blackened by dirty grease on the frame is unsightly. Moreover, moisture may penetrate into the cup and promote the formation of dirty grease. Lubrication by this system requires constant attention and the oil must be renewed frequently.

It is accordingly a further object of the present invention to provide a lubricating device which eliminates these disadvantages.

The device according to this invention is designed for lubrication with semi-solid grease. The aforesaid disadvantages are obviated to a large extent by confining the grease in a substantially closed chamber into which it is introduced through an appropriate valve.

The nature of the invention will be better understood from the following description, taken in connection with the accompanying drawing in which a specific embodiment of the invention has been set forth for purposes of illustration.

In the drawing the device is illustrated by a sectional elevation of the sliding sleeve which is provided with lubricating means according to the invention.

Referring to the drawing more in detail, there is mounted on the spindle 1 of the hell (not shown), a sliding sleeve 2 having a flange 3' carrying a cushioning "ice element 4 which rests on a spindle plate 3 actuated with a vertical reciprocating movement for controlling the travel. The sliding sleeve 2 supports above the flange 3 two fluid-tight bearings 5 and 6, of which the inner races are shrunk on the sleeve. The outer races are mounted in a pulley-7 forming a part of the rotating support. A boss 8 is carried by the pulley 7 and projects upwardly therefrom. A sleeve 10 carried by the boss 8 is formed with a disc 9 which is carried by the end of the pulley 7. The cop or bobbin for the winding of the thread is centered on the unit comprising the disc 9 and the sleeve 10 by a method which is well known in the art. The said cop or bobbin has not been shown.

The sliding sleeve 2 carires at its lower end a concentric cup 11 open at its lower end, into which is screwed a plug 12, which is also open at its lower end. The cup 11 is fixed, for example by screwing, on the lower part of the sliding sleeve 2, but any other securing means may be employed. Grease 13 is introduced into the chamber enclosed within the cup 11 by means of a valve-type lubricator 14. A small port 15 permits the quantity of grease in the chamber to be checked.

A packing 16, for example of felt, is mounted in the plug 12. The said packing is held in position by a pressure member 17 secured by a threaded cap 18 screwed onto the lower part of the plug 12.

Since the cup 11 is completely closed contamination of the grease from the outside is eliminated with a consequent reduction in the frequency with which the grease or oil must be renewed. At the same time the foreign substances are prevented from contaminating either the lubricant or the bearing surface between the sleeve and the spindle.

Although a specific embodiment of the invention has been shown for purposes of illustration it is to be understood that various changes and modifications may be made therein as will be readily apparent to a person skilled in the art.

What is claimed is:

In a cap spinning frame with fixed cap spindles, a sleeve mounted for axial reciprocation on each of said spindles, a cap support rotatably mounted on said sleeve and means lubricating said sleeve with semi-solid grease and comprising a cup disposed around and concentric with said spindle, said cup having a closed top wall secured to the lower end of said sleeve, having a bottom wall forming a closure, said bottom wall having packing means forming a seal with said spindle whereby on reciprocation of the said sleeve and cup the spindle is lubricated by said grease.

References Cited in the file of this patent UNITED STATES PATENTS 387,245 Milson Aug. 7, 1888 2,245,564 Bergmann et a1. June 17, 1941 2,780,049 Findlow Feb. 5, 1957 2,835,104 Guthrie May 20, 1958 V FOREIGN PATENTS 230,232 Great Britain Mar. 12, 1925

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