US839121A - Wire-cutting machine. - Google Patents

Description

PATENTED DEC. 25, 1906.

J. M. DEAN.

WIRE CUTTING MACHINE.

APPLICATION FILED MAY 10, 1906. n

55 The cutters F and M consist of metal disks l R and guide S into a chute T, by which :0

JOHN M. DEAN, or LOWELL, MASSACHUSETTS, WIRE-CUTTING MACHINE.

Specification of Letters Patent. Application filed May 10, 1906. Serial No. 316,161.

Patented Dec. 25, 1906.

To tithwhom it many concern.-

Be it known that I, JOHN M. DEAN, a citizen of the United States, residing at Lowell, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Wire-Cutting Machines, of which the following is a specification.

My invention relates to machines for cutting wire rods, and more particularly to machines for cutting the pointed ends from wires to form the points ofgra hophone-machines, and also to form hac le-pins, cardpins, gill-pins, and comb-pins used in textile machinery.

The objects of my invention are to so out such points or-pins that they shall be of a uniform length and so that their butt-ends shall be smooth and shall be squarely at right angles to their length.

In the drawings, Figure 1 is an enlarged detail view of the-point-guide and cutters on the line X X of Fig. 5 from the back. Fig. 2 is end view of my machine, showing in difierent sections portions of the different arts. Fig. 3 is a general front view. Fig. 4 1s a top view of one end of the machine. Fig. 5 is an enlarged sectional view showing portions of the cutters, feed-rolls, and guides.

In this machine, the stock to be operated on consists of straight wires pointed at one or at both ends.

My machine consists of the frame or table A, which supports two arches B B. The main shaft (J, which is given motion by any suitable means, is supported by adjustable Shaft bearings D D, carried by arches B B. C carries a gearE, a cutter 'F, and feed-rolls G and H. The counter-shaft K is also carried by suitable adjustable bearings supported by table A. One of these bearings is shown at J and the other is similar thereto, but is under saddle It.

Counter-shaft K carries a gear L, whlch meshes with and receives motion from gear E. Shaft K also carries a cutter M.

The shaft C is not directly over shaft K, but is behind and parallel with it. This is to aid the stock by the force of gravity in de.

scending to the cutting-point and to prevent it from being forced out by the cutters in- 3 The bearings stead of being cut by them. of shafts C and K are adjustable in line with each other.

rigidly secured to their respective shafts. Their rims are beveled on the sides opposite from each other. Their adjoining faces are in the same plane, and their rims touch or slightly pass each other.

The feed-rollers G and H are provided with rims of rubber or other elastic material and-are of the same diameter as cutter F. Roller G is fixed on shaft C; but roller H is -made so that it can be moved along shaft C to accommodate different lengths of stock, and it can be secured in place by set-screw 6. The wires N are fed to the machine by being placed in suitable quantities upon the parallel feed-guides 11 and 12. These feedguides 11 and 12 taper toward the and nearest the feed-rollers G- and II and are bent at right angles at their outer ends. They are supported by means of angle-irons 13 and and through said slots and guides 11 and 12 are passed, respectively, bolts 27 and 36, wherebyguides 11 and 12 may be raised or lowered and may be held in place by tightening said bolts. \ngleiron 14 is fixed to base-plate'P, which in turn is fixed to table A. Angle-iron 123, however, can he slid along base-plate P and may be held in place thereon by tightening the nut of bolt 29, whose shank passes through slot- 18 in baseplate P. The head of bolt 22) extends on Feed-guides 11 and 12 may thus be raised or lowered and the distance between them vaeters and lengths.

Feed-guides 11 and 12 taper toward the feed-rollers, as stated, and rest against the slanting surface of saddle It, which is lirml fixed to table A.

curved to conform to the surfaces of feedrollers G and ll. It is between thi surfm-e 16 of saddle It and rollers G and H that rods. N pass in being cut. Guides 11 and 13 are so adjusted as to leave a portion 17 of saddle it above their ends. This is to prevent the wires N from passing through the cutters in any except in positions parallel with shafts (I 1 and K, as theymight do did they not first strike a parallel guiding-surface, such as 1.7.

Saddle It does not extend beyond cutters l" and .\l, and consequently the points? out l from wires N fall between the side of saddle 14. Each angle-iron has a vertical slot 15,

both sides of slot 18 under base-plate l..

ried to accommodate wires of different diam- The top purt'of this saddle It is made of metal and at the part 16 i.-=

are conducted to suitable receptacles. The remaining portions of wires N are carried along by feed-rollers G and II past saddle R, when they are released and roll down the slant 19 to the level portion 20 of the trayB, so placed and made as to receive them.

I also use an end guide or gage S, which consists of a flat piece of metal of suitable shape set parallel with cutters F and M and supported by a horizontal screw-threaded shank 22, passed through a hole in arch B. It can be moved to and from the cutters and revolved on shank 22, and it can be held in any position by means of adjusting-nuts 21, carried by shank 22. This guide S is intended to gage the lengths of the pins or points 7 which are to be cut from wires N, as it is parallel to cutters F and M and can be moved toward or from them. The pointed ends of wires N are automatically kept in contact with guide S by having the whole machine arranged so that it is higher at the side opposite to the side at which are the cutters and this guide S, as see Fig. 3. This tends to make all the wires N keep evenly in contact with guide S, as the jarring of the machine causes them to slide in that direction until their points touch it lightly.

In order to support the ends of points 7 while wires N are passing through the cutters and are actually being cut and so that they may be cut squarely and cleanly, I form a projection 41 at the end of guide- S. This projection 41 is at the part 42 concave in shape, as shown in Fig. 1, to conform to the contour of the curved part 16 of saddle R. Guide S is so set by rotating it upon shank 22 as to bring the curved part 42 of projection 41 a distance a trifle less than the radius of one wire N above the curved part 16 of saddle R. Projection 41 of guide S extends almost or quite to a point opposite the point of contact of cutters F and M. By the use of this point-guide 41 the tips of the points 7 of wires N are supported during the period when wires N are being cut at nearly their extreme tips, and as the bodies of said wires are also firmly held between saddle R and rollers G and H the cut is clean and at right angles to the axis of the wires. End guide S stops and is continued by guide 41 at the point where the cutters begin to cut. Were it not for point-guide 41 the cut would be likely to be diagonal.

To make the space between saddle R and rollers G and H conform to the diameters of different wires which it is desired to cut, I carry shafts C and Kin adjustable bearings. The bearings at one end of these shafts are shown in detail in Figs. 2 and 4 at D and J. Bearing D is carried by arch B and consists of slanting guides 32 integral with said arch and the box 33. Adjusting-bolts 31 and 31 at top and bottom allow the box 33 to be moved back and forth and to be adjusted with delicacy and when adjusted to be held firmly in place. Bearing J consists of slanting guides 36 in line with guides 32, carried by table A and box 37. Adjusting-bolts 35 and 35 at top and bottom allow this hearing to be adjusted in a similar manner to bearing D. By nmking bearings D and J adjustable I can take up or allow for any wear on cutters F and M.

The advantages of my invention are speed in operation, accuracy in cutting, and adjustability.

That I claim as my invention, and desire to cover by Letters Patent, is

1. In awire-cutting machine, lower adjustable bearings, upper adjustable bearings in line therewith, parallel shafts carried thereby, cooperating rotary cutters carried by said shafts, guide-rollers carried by the upper of said shafts, a guide-saddle cooperating therewith, feed-guides, and an end guide as described.

2. In a wire-cutting machine, lower slanting adjustable bearings, upper slanting adjustable hearings in line therewith but not perpendicularly above them, parallel shafts carried thereby, cooperating rotary cutters carried by said shafts, guide-rollers carried by the upper of said shafts, a guide-saddle cooperating therewith, feed-guides, and an end guide as described.

3. In a wire-cutting machine, downwardlyinclined parallel shafts, feed-rollers carried by the upper of said shafts, a guide-saddle and feed-guides inclined correspondingly with said shafts, cooperating rotary cutters carried near the lower ends of said shafts, and an end guide parallel with and outside of said cutters.

4. In a wire-cutting machine, a drivingshaft, a guide-roller fixed thereon, a guideroller slidably adjustable thereon, a rotary cutter fixed thereon, a lower shaft parallel with said driving-shaft, and a rotary cutter fixed thereon, combined with slanting feedguides, a feed-guide saddle which projects above the lower ends of said feed-guides and comprises a surface adjoining the guiderolls which is concaved to correspond with their rims, and an end guide as described.

5. In a wire-cutting machine, cooperating rotary cutters, a guide-saddle, cooperating guide-rollers, adjustable feed-guides, and an adjustable end guide as described.

6. In a wire-cutting machine, cooperating rotary cutters, a guide-saddle, cooperating guide-rollers, adjustable feed-guides, and an end guide capable of lateral adjustment and comprising a oint-guide adapted to support the points of t 1e wires while being cut.

7. In a'wire-cutting machine, lower adjustable bearings, upper adjustable hearings in line therewith, parallel shafts carried thereby, coo crating rotary cutters carried by said sha ts, a guide-roller fixed to the upper shaft, and a guide-roller slidably adjustable I points of the wires while being cut, as dexo along saidup er shaft, combined with inscribed.

clined adjustable feed-guides, a fixed guide- In testimony whereof I affix my signature saddle which projects above the lower ends in presence of two witnesses.

of said feed-guides and com ris'es a surface adjoining the guide-rollers w 'ch is concaved JOHN DEAN to correspond with their rims, and an end Witnesses: guide capable of lateral adjustment and com- FISHER H. PEARSON,

prising a point-guide adapted to support the FLQRENOE A. PARR.

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