US2425576A

US2425576A - Suction cleaning device for spinning machines and the like

Info

Publication number: US2425576A
Application number: US541807A
Authority: US
Inventors: Meinard F Thoma
Original assignee: Individual
Current assignee: Individual
Priority date: 1944-06-23
Filing date: 1944-06-23
Publication date: 1947-08-12
Anticipated expiration: 1964-08-12

Description

Aug. 12, 1947. M. F. THOMA 2,425,576

SUCIION CLEANING DEVICE FOR SPINNING MACHINES AND THE LIKE Filed June 23, 1944 I'm/e for:

9 f Mei/mm F T60121 I) lit 3 Patented Aug. 12, 1947 SUCTION CLEANING DEVICE FOR SPINNING MACHINES AND THE LIKE Meinard F. Thoma, Fitchburg, Mass.

Application June 23, 1944, Serial No. 541,807 2 Claims. (Cl. 19-'-139) The present invention relates to an improved suction device for employment in connection with the drawing rolls of spinning frames and similar textile machinery, for collecting and removing broken ends, as well as for keeping the cylindrical roll surfaces free from any accumulation of fly, lint and other waste material.

Suction devices for collecting and removing broken ends from spinning machinery, as heretofore constructed, have comprised suction heads extending in proximity to the drawing rolls, with each head providing a series of spaced suction openings arranged to coincide with the spacing of the individual rovings. Such a prior device is shown, for example, in the copending application of Heinrich Thoma, Serial No. 414,796, filed October 13, 1941, for Exhaust plant for spinning machines for catching and removing thread ends, since issued as Patent No. 2,354,893 on August 1, 1944.

According to the present invention, there is provided an improved suction device of the above described general construction, which device is characterized by the employment of suction heads so constructed as to be capable of performing the dual function of removing loose ends, as well as keeping clean the adjacent roll surfaces from any accumulation of fly, lint, or other waste material.

The above and other advantageous features of the invention will hereinafter more fully appear from the following description, considered in connection with the accompanying drawings, in which- Fig. 1 is a diagrammatic'view, partially in section, showing the installation of a suction device embodying the invention in association with a spinning machine.

Fig. 2 is a View in front elevation of a portion of the drawing roll section of the spinning frame shown in Fig. 1, on an enlarged scale.

Fig. 3 is a vertical sectional view along the line 33 of Fig. 2, looking in the direction of the arrows.

Fig. 4 is a plan view of an individual suction head and its associated conduit, such as is shown in Fig. 2.

Referring first to Fig. 1, there is shown a portion of a'spinning frame providing spools I, from which roving 2 is drawn by rolls 3 for winding on spindles 4 in a manner usual with the operation of spinning machinery. In accordance with the present invention, there is incorporated in the spinning frame a conduit 5 extending longitudinally of the machine, this conduit being creel spool stand 6.

readily built into the existing machine below the The conduit 5 has a rectangular cross section, with one end closed as indicated in Fig. 4, and its opposite open end connected to a suitable suction source as indicated by the arrows at I.

The conduit 5 provides a series of suction heads 8 projecting from opposite sides thereof, with the several heads of each series extending along the machine transversely to the rovings 2, as the latter move downwardly from the drawing rolls 3 to the spindles 4, as indicated in Fig. 1. As best shown in Figs. 2 and 3, each suction head 8 provides a continuous slot 9 constructed in such a manner as to not only collect and remove broken ends of rovings, but also to prevent the accumulation of fly and lint on the associated drawing rolls 3. It is to be noted in Fig. 2 that the front drawing roll 3 provides the usual fluted portions I0 separated by smooth portions II of smaller diameter, and the suction slot 9 of each head 8 is formed with end collecting portions I2 and cleaning portions l3 corresponding in length to the above described roll portions I0 and II, respectively.

Referring 'now to Fig. 3, it will be seen that the end collecting portion I2 of each suction slot 9 is located forward of the axis of the front drawing roll 3 just below the fluted portion I0, so that any broken ends of roving 2 will be drawn into the suction head, as indicated by the dotted arrciw. Furthermore, it is apparent that the cleaning portion I3 is disposed so that it is close to the smooth portion II of the roll 3 where it will function to remove any fly, lint, or other waste material from this portion of the roll, as indicated 'by the dotted arrow.

It will also be apparent from a consideration of Fig. 4 that each suction head 8, as viewed in plan, will show the slot 9 as a continuous alternating line, with the lengths of the end collecting portions I2 and cleaning portions I3 corresponding to the lengths of the fluted portions I0 and smooth portions II of the particular front roll 3 with which the head may be employed. Therefore, each suction head performs a dual function, namely to collect and remove any broken ends from the associated drawing rolls and to continuously exert a cleaning action'on the smooth roll surfaces between the fluted portions. Obviously, a cleaning action is also performed by the end collecting slot portions I2, with respect to any fly or lint on the fluted roll portions I0.

From the foregoing, it follows that by the present invention there is provided an improved suction cleaning device for spinning machines and the like, whereby loose ends of roving will be efiectively gathered and removed, along with any waste material such as fly and lint resulting from the spinning operation.

I claim:

1. A device for collecting and removing broken ends in machines for performing a textile operation on roving, comprising in combination cooperating rolls for passing roving therebetween, a suction element extending longitudinally of the rolls, said element being connected to a source of suction at one end and closed at its other and providing a continuous longitudinally extending slot of irregular form having portions extending parallel to the roll surfaces for collecting and removing broken ends from the rolls, and other portions offset with respect to said first named slot portions for removing loose fly, lint and other waste material resulting from the textile operation. I

2. A device for collecting and removing broken ends in spinning and like machines, comprising in combination cooperating pairs of rolls, certain of which provide alternate fluted and smooth portions of difierent diameters, a suction element extending longitudinally of the rolls, said element REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,104,881 Ezell et al July 28, 1914 908,341 Shipp Dec. 29, 1908 299,855 Sargent June 3, 1884 FOREIGN PATENTS Number Country Date 636,247 Gennany Oct. 5, 1936 186,107 Germany June 12, 1907 658,780 France June 19, 1929 38,881 France Aug. 8, 1931