US1541792A - Braiding machine - Google Patents

Description

Jur,` 16, 1925. v1541.792A

. l J. H. coNNoLLY BRAIDING MACHINE Filed oct. s. '.1922 2 sheets-sheet 1 (5524K June 16, 1925. 1,541,792

J. H. CONNOLLY BRAIDING MACHINE Filed Oei.' 5. 1922 Sheets-Sheet 2 ure 1,

Patented June 16, 1925.

"UNITED STATES JAMES H. CONNOLLY, OF PAITUGKET,l RHODE ISLAND.

BRAIDING MACHINE.

Application filed October 5, 1922. Serial N'o. 592,534.

To all 'whom t may concern:

Be it known that I, JAMES H. CoNNoLLY, a citizen of the United States, residing at Pawtucket, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Braiding Machines, of which the following is a speciiication.

My invention relates to braiding machines and has for its essential objects a more perfect control of the rotation of the bobbin to insure a. uniform tension on the yarn; to maintainthe carrier in a perfectly vertical position and insure a smooth movement of the carrier base; and to increase the speed of travel of the carrier.

To the above tends essentially my invention `consists in such parts and in such combinations of parts as fall within the scope of the appended claims.

In the accompanying drawings which form a part of this specification,

Figure 1 is a side elevation, partially in vertical central section of a carrier embodying my invention as showing the wound yarn or filament in broken lines,

Figure `2, a section on line 2-2 of Figure 1,

Figure 3, a sectionon line 3-3 of Figure 2, i Y

Figure4, a section on line4-4'of Fig- Figure 5, a fragmentary plan View of the guide plate unit, showing carrier `guides therein in transverse section, and' Figure 6, a vertical section ofthe unit on line 6 6 of Figure 5. Like reference `characters parts throughoutthe views. p In detail my lbraider consists of a guide plate unit 10 comprising acenter plate 11, quoits "12, and outer plate 13, all arranged in the usual manner toform a pair of sinuous vintersecting guide-channels 14 extend' ing around the unit having straight por-y tions approaching all crossover points. In detail the plate 11, quoits 12, and plate 13 have marginal or peripheral vertical iianges 1T, 18, and 19 respectively.extending both above and below the horizontal plane of the web portionsof the plates.` The flange 1S forms with the web portion 12 of each quoit a nearly annular cavity or recess 21 from which extend passages 22 communicating with curved horizontally disposedgrooves 2? in the iiangel disposed upon opposite indicate like portions of the quoit periphery. The ungrooved portions of each quoit periphery constitute lands 24 at the points of intersection of the guide channels at the crossovers. In the passages 22 are lengths of absorbent material 25 adapted to convey oil from the recess 21 to the guide grooves 23 whereby lubrication is aft'ordedto the carrier bases.

The carrier includes an oblong foot or top plate 30, a bottom plate or base 31 having a depending central lug or stub shaft 32 for engagement with the usual driving members. The foot land base are connected 'by two spaced posts 33 and 34 in longitu- Upon the respective posts' both for replacements the posts usually pass.

looselythrough holes 40 in the plate 36, the bushings are a .sliding fit, and the posts provided with threads 42 to enga-ge in threaded perforations 44 in the base. The posts 33 and 34 may be integral ,with the foot or may be fixed thereto. In this instance they are fastened by dowel pins 46 to the-foot, and are integral respectively with the spindle 48 and thread guide post 49, both of which extend through the foot.

The portion of the foot through which the spindle passes is made with an elevation or shoulder 52, while "the post 49 extends through a thickened portion or elevation 53.1 The foot with these, elevated portions constitute the body portion of the carrier.

The elevation 52 has a horizontal bore or recess 55 in which is seated a helical spring 56 pressingat one end against the elevation or against a filler plug 57 fast thereim'and abutting with its other end against a bolt 58 which presses against an arm 60 pivoted at one end to a screw G1 in the foot. The

free end of the arm has an angular lateral head or finger 62.

for the purpose otpermitting ready withdrawal of the bobbin 7 5. Fast to or integral with the lower end of the sleeve or tube 67 is a base 69 provided with a depending peripheral flange 70 having vertical equispaced cavities or grooves 71. The base rests upon the elevation 52 or upon a. collar 7 3 upon the spindle and the liange 7.0 is adapted to enclose and engage the head 62 of the member 60. The head naturally registers in the grooves 71 to restrain rotation except during the take oli operation, but the portions ot the flange between the grooves also have frictional contact with the head and assist in preventing racing oi the sleeve and consequent loss of tension. The bobbin 7 5 has frictional engagement with the sleeve 67 of the bobbin carrier and rotates therewith. The base 77 oi the bobbin has radial slots 78 to loosely receive similarly disp sed lugs 79 on the disk 69. For the purpose of maintaining the bobbin in axial positi-en on the tube 67 there is fast in the latter, at a point above the spindle, a pin 31 upon which is pivoted the lower end ot a spring comprising a. vertically disposed shank 33, resilient inclined depending arm 34;, and a terminal linger 85. The latter is adapted to press against the end of the bobbin.

The thread guide post 49 is rectangular in cross section and has fastened in its upper portion a late-ral thread kguide 37, and in its upper end a thread guide 88. Slidably mounted on the post 49 is a tension weight.

`Comprising a shank V and a liange 91. Upon the latter rests a helical spring 93 upon which rests a bearing ring 95 abutting against the thread guide 87. Upon the flange ,91 is a thread guide 97 and a lateral projection 98. The projection engages the vertical portion 99 of an angular lever arm having an inclined upper portion 101 and whose horizontal portion 102 is pivoted at its end upon a pin 103 fast in the portion 52 of the foot. A finger 105 on the lever portion 102 normally contacts with the arm 60, so that as the weight in its upward travel engages the lever portion 101 the linger 105 compresses the spring 56 and presses the head ot the member G0 out of engagement with its groove 71 to release the disk 69.

In operation the carrier bases are impelled through thechannels la by the usual mechanism acting upon the stub shaft 32. The bushings 317 and 38 run freely in these channels, and together with the enclosed posts 33, 34, and the plates 30, 31, and 30 act to restrain the carrier in an upright and nonswaying position as well as guide the same through the various portions of the channels. The grooves 23 accommodate the guide plate 36 through the curved portions, and this plate draws lubricating oil from the grooves during its travel therethrough. At the straight portions of the channels adjacent the intersections, the sides of the plate 36 slide along' the lands 24k and assist in eliiecting the cross over. To further insure against deviation at the cross overs or intersections the posts 33 and 34 are so spaced as to equal approximately the length ot the straight portion oi a channel at one side ot the point oi' intersection ot two channels. lt will be observed that he constituent parts ot the bases are replaceable for wear. A less desirable construction of the base isone in which the parts 30, 31, 3G, 37 and 3S are an integral whole.

As braiding material is taken to the braiding point vot the machine it is led through guides 83, 9T and 8'? and 'thence from the bobbin. 'lension is maintained in the braiding material by weight and compression spring 93. The braiding material is led from the bobbin on such side as to normally lieep the notched liange 70, and therefore the bobbin, locked against the linger 62. As the braiding material is drawn oli to the braiding point the weight rises against the spring 93 and it more material is desired to be taken oil' than can be provided by slight action of the weight and spring said weight will rise against spring 93 until it moves the inclined upper portion of the lever arm su tliciently to cause the finger 105 to thrust head 62 out of contact with notches in flange 70, thereby releasing the bobbin 7 5 and permitting it to rotate and cause yarn to be unwound `due to tension set up by the weight and spring 93. lmmediately as the linger 62 is removed from the notches against the action ol spring 55 the latter will thrust the pawl against the smooth inner face of the flange 7 0, and thereby cause a friction which will restrain flange 7 0 and consequently the bobbin from too free a rotation, and consequent loss oit' tension in the thread.

It is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

I claim 1. In a braiding machin-e, a guide plate unit provided with sinuous intersecting channels, and with peripheral grooves opening into the channels, and a carrier base comprising posts slidablv mounted in the channels, plates upon the ends of the posts, and a guide plate carried by the posts registering in the grooves.

2. In a braiding machine, a guide plate unitprovided with sinuous intersecting channels, and with peripheral grooves opening into the channels, and a carrier base comprising a top plate and a bottom plate engaging exterior portions of the unit. posts spaced from each other in the channels connecting the top and bottom plates, an intermediate plate provided with holes through which the posts pass slidably in the grooves, and bushings on the posts between the guide plate and the top and bottom plates.

3. In a braiding machine, a guide plate unit provided With sinuous intersecting channels and With peripheral grooves opening into the' channels, and a carrier base comprising posts slidably mounted in the channels, a pair of bushings mounted in each of said posts, and adapted to roll in said channel and a plate connecting said posts and serving as a separator of the individuals of each pair of bushings.

t. In a braiding machine, a guide plate unit provided With sinuous intersecting channels, a carrier base comprising posts slidably mounted in the channels, a pair of rotatable bushings mounted on each side of said posts and adapted to roll in said channel, a plate connecting said posts and serving to separate the individuals of each pair of bushings, said channels being provided With peripheral grooves opening into the channels to permit clearance for the said plate.

5. In a braiding machine, a guide plate unit provided With sinuous intersecting channels, said guide plate being provided with peripheral grooves opening into said channels, and terminating adjacent the region of intersection` a carrier base comprising posts slidablv mounted in said channels, plates upon the ends of the posts, and a guide plate carried by the post-s and registering in the grooves.

In testimony whereof I have aiiixed my signature.

' -JAMES CONNOLLY.

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