US1467551A - Stop motion for braiding machines - Google Patents

Description

Sept. i1 1, 1923., 15467551 F. 'w. MANsrlEL-D i sToR MOTION-FORBRAID'ING MACHINES t FiledrMay 27, "1922 v2 shetsfsneet 1' 357 *I 'v l y :Il "`l 'F191- f nii ll'llllllllllllllllllIIIII n Inven'for. Frank W. Mansfield bym Anya;

` sept. 11, 1923.

F. w. MANSFIELD STOP MOTION FOR BRAIDING' MACHINES Filed May 27, 1,922

Fig. 2

2 Sh'eei'zs-Sheet I2 Invenlo. y Frank W. Mansfield NWS Patented Sept. 11, 1923.

Unir-En srars FRANK-YW. MANSFIELD, OF

cANToN,--MAssACHUsETTs.

sToP MOTION Fon BRAIDNG MACHINES."

Application mea May 27,

To aZZfwwm itmajz/ concern.' i

Be it known that I, FRANK W. .MANS-` FmLD, a citizen' of the United States, and resident of Canton, county of Norfolk7 State of Massachusetts, have invented an Improvement in Stop Motions for `Braiding Machines, of which the following description, in connectionwith the accompanying drawing, is a-'specificatiom like characters on the drawing representing like parts.

This-invention relates to braiding ma? chines and particularly tostop Vmotions for braiding machines and has for its object to provide anovel stop motionwhich is 'con-` structed to automatically stop the machine whenever an imperfection is formed inl the braided product delivered from i the 'machine which c'auses an increase in the size of the product.v

Thel invention is useful in connection with any braiding machines where it 'is de sired to produce a' braided product which is free from knots,' bunches or enlargements. but it is especially useful in connection'with braiding machines that are adapted to braid iish lines or other similar cord because it provides for stopping the vbraiding machine at once lin case a knot or" other bunch is braided into the product in such a way as to cause a bunch or enlargement therein.

The invention consists of a gauging 'eye which is situated justabove the braiding point and through which the product passes7 said eye having a diameter of a size to permit the product to freely pass so long as it is of the requiredsize vbut which'will prevent the passage of a bunch or an enlargement in the product. This 'gauging eye is so connected with the stop mechanism that whenever a bunch or enlargement en gages the eye the stop motion will be Opf erated to stop the machine automatically.

In orderto give an understanding of the invention I have illustrated in thedrawings a selected 'embodiment thereof which will now be described afterwhich the novel fea.- tures will be pointed out in theappended claims.l

Fig. 1 of the drawings is a side'view of a braiding machine embodying my invention with most of fthe braiding carriers omitted.

i922. serial No. 564,058.

' Fig. 2 is a horizontal sectional view taken vv just above the plate 2.

Fig. 3 is a side Iview ofthe driving clutch. Fig. 4; is a View'of the gauging eye. 'The braiding'machine herein shown is of the well-known vconstruction and 'comprises a base-1 supporting a plate 2 in which is 'formed the raceways 3 in which the spin-- dies :il of thek braiding carriers 5 operate, each; carrier'having a bobbinv 6 thereon.

These carriers are moved through the raceways/by means ofthe usual gears'7 that are situated below'the plate 2 and said gears 7 are driven from a driving gear 8 whichis fast lon a verticalshaft 9. The: driving gear 8 is in turn drivenrfrom a belt pulley ,'"f 10 that is loose on said shaft,- said belt' pullley being operated from a driving belt 13 provided with a clutch member 1'1 adapted to "be clutched to a clutchvmember 12 rigid with the ldriving gear 8. 'The driving pul` ley. 1 0 is slidable longitudinally of the shaft '9' andwhen it is in its elevatedposition shown in full lines Fig. 3 it will bek clutched. to the gear 8 and shaft 9 thereby operating the machinebuty when it is lowered into the 'dottedA line position vit -is disengaged' from gear andy the" machinewill` the driving come to rest.

The pulley 10 is raised into its elevated position by meansof a lever`14 pivoted to the frame at 15 and situated Vbeneath the .pulley,said'lever thus'constituting a sup- .port for the; driving pulley.' This lever has al latch'16 pivoted thereto which' is adapted vknock-offv member beingynormall'y held in the position .'shownin Fig. 2 by means ofqa to engage van' 'arm 17l on a swinging knock-f4 ofi' member 18 that Vis situated above Vthe spring20. Thisknock-off member is -adapted to beengaged bythe tensionweight 21 on any bobbin carrier `when it falls due to breakage'of-the corresponding thread, the engagement of 'the' fallen vtension `weight with the knock-oifrmember 18 'sw-inging the 'latter into athe dotted line position Fig. 2

therebyreleasing-:the'finger 17 from r.the latch 16 and allowing the lever 14' and pulley llO-,to dropintothe dotted line position Fig; 3 thus disconnecting'the driving element from the gear 8 and stopping the machine.

The parts thus far described are or may be all as usual in braiding machines and form no part of the present invention, and in the operation of the machinev the braie'e ing carriers are carried around in the races 3 thereby to braid together the threads 22 from the various bobbins to form the cord or other nished product 23. This cord may be either a round cord or.a flat cord depending on the character of the raceways 3.

The present invention: relates toa novel device for stopping the machine automatically in case the cord orother braided product 23 is formed with: a bunch or--k'not or other enlarged spot. .This is accomplished .by providing a gauging eye 24 which is situated just above the braiding point 25 and which is of a size to allow the braided product 23 to pass freely therethrough provided said product does not exceed itsproper or `predetermined diameter.` vIf: thev braided product is a round cord or ai line such asa sh line, then the hole throughl the`r part 24: will be round and w-ill have adiameter jusiL sufficient to permit the cordv 23l to pass freely therethrough. This rgauging eyev isv shown as carried by the 'end' of .a lever 26 pivoted to the frame as shown at27. This arm 26 is normally acted upon'V by a spring which holds it inthe horizontal position shown but if for any reason, a knot *or bunch is formed in the braidedl product 23,- as indicated by dotted lines 28, the engagement of .this knot or bunch with the gauging eye 24k will swing the lever 26 upwardly intothe `dotted line position. 1

Means are provided whereby such swinging movement of the lever 26 will operate to release the latch 16 from the knock-off member 18 thus allowing the driving pulley 10 to be automatically disconnected from the driving gear 8. i j

Thev formation of the bunch or knot 28 may result from various causes, such for instance as a knot in one of the'threads -22zor because some lintzor threadend or' some other foreign object gets caught Vfon;one of the threads 22 lor becomes braided into. the

cord.

The means herein shown'for releasing the latch 16 by the swingingmovement ofthe lever 26 comprises a rod 29which is pivotally connected at its upper end to the end of the lever 26,as shown at 30 and at its lower end is connected to ya dog3'1 that is i f slidable vertically on a'pin 32 carried bly the knock-off member' 18. lThis dog'31 has an larm 33 provided with afshoulder 311.

56 is a spring secured at one end to the Aframe' and at the other'end'to the rod 29,

said spring normally holding the parts. in the position shown Ain AFig? 1'.jfThe shaft 9 has a pin or proj ection'35extending radially j. thereby V,bringing the shoulder 34 into the path of movement of the pin 35. The shaft 9 is rotating in the direction of the arrow Fig. 2 and when the dog has been thus lowered the pin 39 engages the shoulder 34 .and operates through the dog to swing the knock-ofl` member 18 into its dotted line position thus releasing the latch 16 and bringing the machine to rest.

` After the knot 28 has been removed and i before the machine is'started again the lever 26 and dog 31 will be returned to the yfull line position shown in Fig. 1.

It is; desirable that the gauging eye24 should be situatedvclose toy ther braiding point 25 and as this point varies in ak vertical direction depending on theV character of the yarn being braided, I have provided means for adjusting the lever 26 vertically. `'Ihis is accomplished by pivoting said lever on a supporting member .36 which in turnA is `vertically adjustable onV a bracket armv 37 secured to or forming part of the frame,

the member 36 being retained iny vertical adjustable position by a clamping bolt 38.

The connection 30 between the rod and member 36is also preferably an adjustable one so as to permit of this desirable vertical adjustment. Vhile I have illustrated herein aselected embodiment vof my invention I do not wish to be limited to the constructional yfeatures shown. i

I claim: j j j 1. In a braiding machine, the combination with braiding mechanism for forming a braided product having a predetermined transverse dimension, of a drivingshaft for ioo iio

operating the machine, said shafthaving a` projection, a driving pulley slidably mounted on the shaft and adapated by its sliding movement to be clutched to or unclutched from the shaft, a latch for holding the pulley in clutched relation to the shaft, a knockoff lever to retain the latch in its operative position, al dog carried by the knock-offlever and normally situated out of thefpath of movement of said projection, andwmjeans-to move'the'dog into such path of movement when a defect is formed in the product, whereby the projection on the shaft engages the dog and thus shifts the knock-oft' lever to release the latch.

2. In a braiding machine, the combination withbrading mechanism, ofv a driving shaft Iso therefor having a projection 35, a knock-015i' lever 18 controlling the operation of the shaft, a dog 33 carried by the knock-oli' lever and normally situated out of the path or"` 5 movement of the projection, a gauging eye through which the braided product passes from the braiding point, and connections between said eye and dog by which the latter is shifted into the path of movement of the projection when said eye is moved by a knot, 10 bunch or other enlarged portion of lthe braided product.

In testimony whereof, I have signed my name to this specication.

FRANK W. MANSFIELD.

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