US2583849A

US2583849A - Suction end-catcher in ring spinning and twisting machines

Info

Publication number: US2583849A
Application number: US86661A
Authority: US
Inventors: Just Christian
Original assignee: Joh Jacob Rieter und Cie AG
Current assignee: Joh Jacob Rieter und Cie AG
Priority date: 1948-04-19
Filing date: 1949-04-11
Publication date: 1952-01-29
Anticipated expiration: 1969-01-29
Also published as: DE828816C; BE488044A; CH271619A; GB676875A; FR983393A

Description

Jan. 29, 1952 c JUST SUCTION END-CATCHER IN RING SPINNING AND TWISTING MACHINES Filed April 11. 1949 Patented Jan. 29, 1952 SUCTION END-CATCHER IN RING SPINNING AND TWISTING MACHINES Christian Just, Winterthur. Switzerland, assignor to Actiengesellschaft .loh. Jacob Rieter & Cie., Winterthur, Switzerland Application April 11, 1949, Serial No. 86,661 In Sweden April 19, 1948 My present invention relates to the arrangement of auxiliary means for pneumatically sucking-ofi thread ends in ring frames and ring twisting frames.

7 Claims. (crew-cam her a and is rockablymounted in the main wall i, and a locking arm or detent I3 is pinned to each end of rod 12, outside the end shield. The said detents are engageable on studs I4 fixed to In frames provided with such suction means, -5 the small sides of structure In and project thereit has been customary to dispose portions therefrom. Further, a swing gate [5 which extends of in a special box secured to the frame, which arover the entire width of the machine or chamber rangement, however, requires excessive space and c, is pinned to said rod l2 so that, when dishinders the trafiic in the mill rooms. When setengaging the detents l3 from'the studs l4 and ting up in the mill new machines provided with '10 swinging the same upwards to the position shown such boxes, the additional space required therefor naturally reduces the number of spindles which can be accommodated in the room. Such additional structural units or annexes therefore are uneconomical, so much more as various parts already present in one frame-endwall are duplicated in the said box.

The said disadvantages are avoided by the arrangement according to the present invention in that the motor-driven suction fan and a filter are incorporated in one of the frame end shields which is formed as a box.

The space enclosed by the said end-shield suitably is divided by a filter and an apron wall supporting the suction fan into two compartments, F f

however, the foot portion of the end shield'has been swung open.

In Fig. l, the roller beam 2 and spindle rail 3 are fixed to the main wall I of the end shield. An apron wall 4 provided in the upper portion of the end shield is spaced from the main Wall i and extends over the entire width of the machine, as does a filter screen 5 which together with the apron wall 4 subdivides the space of the boxlike end shield in two chambers a and b. The electric drive motor 6- is flanged to the apron wall 4, and the fan wheel 1 is pinned to the overhung shaft end of motor 6. A suction port 8 is formed in the main wall I coaxially of the fan wheel 3 and opens towards the machine. A central suction header or collecting duct 9 opens into the suction port 8.

The filter or screen 5 is disposed in a swing structure I c which is pivoted on pins H to the foot of main wall I so that it may be tilted away from the machine. A rod 12 traverses the chain in Fig. 2,.the gate l5 shuts the bottom opening in the upper portion of chamber a. The motor 6 disposed in chamber b projects through an opening in the wall [6 of the end shield into a hood H which has an open bottom. The fan wheel 1 is disposed in the upper portion of chamber a.

The fan 1 driven by motor 6 sucks air containing fibres and perhaps lengths of thread through the header 9 from the drawing means of the machine and moves the same in direction of the arrows shown towards the filter screen 5. The fibres and broken ends are retained on the screen 5 and in the chamber a, while the air traverses the screen 5 and the chamber a and flows to the outside partly through the hood I! and partly through the openings of a screen [8. The fibres and thread ends, collected on the filter screen 5 have to be removed from time to time. For such purpose either of the detents I3 is swung manually from its locking position shownin Fig. 1 into the position shown in Fig. 2, the other detent l3 also being swung into such latter position through the axle rod l2. During such rocking movement, an extension l9 provided on each detent I3 is disengaged from the appurtenant stud M of the structure I 0, which permits the latter to tilt to the position shown in Fig. 2, and the swing gate I5 is brought into abutment against the foot of the apron 4 whereby the air stream is prevented from entering the lower portion of chamber a.

The elements mounted as described on the machine for sucking-oil broken ends require only little space, and the arrangement operates very economically owing to the aerodynamically favorable location of the suction blower and filter screen. By reason of the fact that the air-outlet hood surrounds the motor to a substantial amount, the motor is well cooled so as to permit to use a fully closed motor, which affords a high reliability of operation. Owing to the arrangement of the filter screen as described, the latter may be cleaned while the suction means are in 3 operation so that such cleaning does not disturb the spinning operation proper.

What I claim as new and desire to secure by Letters Patent is:

1. In a textile ring frame or ring twisting 'frame having an end shield formed as a hollow box-like structure, a motor-driven suction fan located in said box-like end shield, a filter screen located in the box-like structure in position to receive air from the fan and filter out broken thread ends which have been sucked away from the textile frame by the fan.

2. In a, ring spinning or ring twisting frame having pneumatic suction means for broken threads, the combination with an end shield supporting longitudinally extending members of the frame, said end shield being formed by a box like structure, of a partition wall within the end shield structure, a motor driven fan mounted on said partition wall, and a filter screen within said structure, said partition wall and said filter soreen'dividing said box-like structure into two chambers, said suction fan being arranged for delivering the drawn-in air stream into one of said chambers and forcing it across said filter screen into the other chamber, whereby broken threads and fibres are collected by said filter screen.

3. A ring spinning or ring twisting frame as claimed'in claim 2 and comprising an electric motor driving said suction fan, said motor being carried by said partition wall on one side thereof and said suction fan being disposed on the other side of the partition wall.

4. In a ring spinning or ring twisting frame having pneumatic suction means for broken threads, the combination with an end shield supporting longitudinally extending members of the name, saidend shield being formed by a box-' like structure, a, partition wall within said structure to provide two chambers within the end shield, a filter screen forming part of said par ti'tion. wall, a motor driven suction fan disposed in. one of said chambers, an electric motor carried by said partition wall and disposed opposite said suction fan inthe other chamber, the wall of said other chamber forming an outwardly open hood member surrounding said motor,- whereby the stream of air delivered by said suction fan mm said first mentioned chamber traverses said filter screen to'pas's into said other chamber and to be discharged therefrom through said open hood rri'ember.v

In a ring spinning and ring twisting frame the combination with an end shield su porting longitudinally extending members of said frame; or an arrangement for neumatically drawing off broken threads, said arrangement including a box like en'dshield structure, a partition wall within said box-like structure to divide said structure into two chambers, a motor driven suc tion fan disposed in one of said chambers, an electric motor carried by said partition wall. and

disposed in the other chamber, a filter compartment pivotally mounted in said end shield structure, a filter screen disposed in said filter compartment, said filter screen in normal position of the filter compartment forming an extension of said partition wall, whereby the stream of air delivered by said suction fan into said first mentioned chamber is forced to traverse said filter screen and to flow into said other chamber, a pivotally mounted closing gate adapted to interrupt communication between saidfirst mentioned chamber and the filter compartment and locking means for holding the filter compartment in said normal position, said locking means being operatively connected to said closing gate, whereby upon release of said locking means to swing the filter compartment away from the end shield, said closing gate is actuated to close said first chamber and intercept the air stream delivered by said suction fan.

6. A ring spinning or ring twisting frame coinprising an end shield supporting the endsof 1on gitudinally extending members of the frame, said end shield forming a box-like structure, a substantially vertical partition wall depending from the top of said end shield, a filter screen extending from the lower edge of said partition wall towards the bottom of the end shield, said partition wall and filter screen vertically dividing the end shield in two chambers, a suction fan disposed in one of said chambers, a longitudinally extending suction line abutting at said chamber, an electric motor driving said suction fan, said motor being secured to said partition wall and disposed in the other of said chambers, and an air outlet in said other chamber in proximity to said motor, whereby the stream of air drawn by the fan through said suction conduit and delivered into said first mentioned chamber is forced through said filter screen into said second mentioned chamber and discharged towards said outlet.

7. In a ring spinning or ring twisting frame having pneumatic suction means for broken threads and fibres, the combination with an end shield supporting longitudinally extending members of theframe, said end shield being formed by a box-like structure provided with air inlet and outlet openings, a central suction collector for broken threads and fibres connected to said air inlet opening, a motor driven suction fan mounted within said box-like end shield structure to draw in air through said suction collector and expel the drawn in air through said outlet opening", and a filter screen disposed within said endshield structure in the path of air between said inlet and outlet openings whereby broken threads and fibres arriving with the suction air through said collector are separated from the air by said filter screen.

CHRISTIAN JUST.

No references cited,