US1632462A - Power press - Google Patents

Description

1,632,462 June 14, 1927- z, P. cANDEE POWER PRESS,

Filed May 1. 2925 4 Shoota-Shoet;

INVENTOR Zenas I? (cm 0'66 June 14, 1927,

Z. P. CANDEE POWER PRES 5 Filed May 1. 1925 4 Shoots-Sheet 3 INVENTOR Zenas 1. Candee BY-&

A RNEY v June 14, 1927.

z. P. CANDEE POWER PRESS F1194 May 1. 1925 4 Shoots-Sheet 4 INVENTOR I Patented June 14, 1927.

UNITED STATES PATENT OFFICE.

ZENAS 1?. CANDEE, OF WATERBURY, CONNECTICUT, ASSIGNOR TO THE WATERBURY FARREL FOUNDRY AND MACHINE COMPANY, OF WATERBURY, CONNECTICUT, A

CORPORATION OF CONNECTICUT.

POWER PRESS.

Application filed May 1, 1925. Serial No. 27,214.

This invention relates to a new and improved power press and its structure and operation is especially adapted, although not limited thereto, for that type of press wherein two dies are brought together under great pressure and the alignment of the dies should be exact.

It is the object of this invention, among other things, to produce a press wherein the 1G gate is connected with members whlch have a bearing in a solid frame both above and belowthat portion of the gate wlth wh ch the tools are connected and in the attainment of these objects, as well as others, to provide a mechanism that will be composed bf a limited number of parts so arranged as to be readily accessible for adjustment, etc., and will have great rigidity when assembled.

The improvements in the details and arrangement of parts will be apparent from an inspection of the accompanying drawings in connection with the description hereinafter contained. I U

Referring to the drawings, 1n wh1ch l1l e numerals of reference designate like parts In the several figures:

Figure 1 is a front elevation of my 1mproved power press, with some of the parts thereof shown 1n section;

Figure 2 is a side elevatlon thereof;

Figure 3 is a sectional elevat1on thereof taken. generally upon line 33 of F1gure 1;

Figure 4 is a transverse sectional plan View thereof, the parts in section being taken generally upon-line 4-4 of F1gure 1;

Figure 5 is an enlarged deta1l sect1onal plan view of-one of the rod bearlngs;

Figure 6 is a front elevation of another form of my improved die press having two rods instead of four, as shown in thety'pe of press illustrated in the preceding views;

Figure 7 is a sectional elevat on thereof, taken generally upon line 7-7 of F1gure 6; and

Figure 8 is a transverse sectionalview, taken generally upon line 8-8 of F1gure 6.

In the drawings, 10 designates the frame of the press that is shown as supported upon the legs 11, as is usual.

This frame is preferably constructed with two uprights 12, which extend between the bed 23 and the head portions 13, wlnch are joined at their upper ends by the cap 14, securedthereto by bolts 15.

J ournaled within the split bearings 16, in the frame, is a crank shaft 17,upon the crank 18 of which is thesplit sleeve 19, to which are clamped the companion connec tions 20, that are secured at their lower ends to the gate block 21 by means of the tapered pins 22.

lVithin the bed 23 and the head portion 13, are a plurality of split rod bearings 24 which are arranged in pairs with the axes of the bearings in the bed coincident with those of the bearings in the head. These rod bearings as shown are conical in form and preferably provided with slots 25 in their outside wall which do not extend to the bore of the bearing and a slot 26 which extends entirely through one wall of the hearing from the exterior to the bore thereof. These rod bearings are adjustably secured by the nuts 27 threaded upon opposite ends thereof and whereby their relative axial position may be varied and the diameter of the bore varied to a limited degree so as to insure an exact bearing surface 'for the guides 28, which may be rods, as shown, or other shapes and forms, as may seem desirable, movable therein and to take up any lost motion that may develop and disarrange the exact alignment of the operating tools. The upper end of each of these bearings is covered by a cap 29, within which is the packing 30.

A plate 31 of fiber or similar material placed within each of the slots 26, not only prevents the closing of the bearings too tightly on the rod, but oil from the bearings from running down the outside of the rods 28.

The gate 32 is provided attach corner with the cylindrical portions 33 through which project the rods 28, that are secured therein by the bolts 34, which-pass, through the integral lugs 35, between which is the filling plate 37 of fiber or similar material within the slot 36.

Upon the bed 23 is a die block 38 having tools 39 of any desired form or structure therein, and secured to the gate opposite the die block is a holder 40 or the like, having a punch 41 fixed therein.

The tools as shown herein are merely for the purpose of illustratmg the position thereof, as the function, shape and form thereof are immaterial so far as this invention is concerned. The tools may be for embossing, piercing, drawing, or for any other desired purpose.

A vertical reciprocatory movement is given the gate from the crank shaft 17 in the usual manner, during which time the rods 28 move through and are supported by the bearings 24.

By this construction the gate is guided by the rods, the bearings of which are in a solid frame, both above and below the operating faces of the tools, thus providing a very rigid structure especially desirable with a combination of blanking and embossing or stamping tools, and at the same time are accessible both for installation, operation and removal.

In some cases it is desirable that the weight of the gate, rods and parts connected therewith, should be taken off the crank shaft, which results in a smoother running machine. The mechanism for accom plishing this purpose, as herein shown, comprises the rod 42 that is fixed in the upper end of each of the rods 28 and having-a collar -13 thereon, between which and the cap 29 is a coil spring 44, the tension of which may be varied through the nuts 45.

. Each of these springs is enclosed within a tube 46.

In Figures 1 to 4, inclusive, the structure shown is designed for a power press having four rods 28. A two rod machine or other multiple of rods may be used with equal advantage. In Figures 6, 7, and 8 is illustrated a type of press wherein there are only two such rods, but the parts adjacent to the rods are the same in both cases.

In this latter form, the head portion 49 projects forward from the uprights 50 and is connected with the bed 23 by'the rods 51. The gate 47 in this type of press is slightly modified to provide for the two-rod type, the cylindrical portions t8 thereof being in rear of the tools and extending above and below the corners thereof as in the other type. This gate is actuated from the crank shaft 52. through the connection 53. Otherwise the construction and opleration of the mechanism is substantially t e same.

There are minor changes and alterations that may be made within my invention, aside from those suggested, and I would therefore have it understood that I do not limit myself to the exact construction herein shown and described, but claim all that falls fairly within the spirit and scope of the appended claims.

Having described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a power press, a frame having a bed and a head located above the bed in spaced relation thereto, bearings carried by the head, bearings carried by the bed and alined with the respective bearings of the head, a gate between the bed and head, a plurality of guide rods, means to fixedly'secure the guide rods to the gate intermediate the ends of the rods,'the rods having their ends projecting above and below the gate and being movable in the respective bearings, and means to effect adjustment of each of the bearings so as to accurately aline same with respect to theguide rods.

3. In a power press, a frame having a bed and a head located above the bed in spaced relation thereto, bearings carried by the head, bearings carried by the bed and alined with the respective bearingsof the head, a gate between the bed and head, a plurality of gulde rods, means to fixedly secure the guide rods to the gate intermediatethe ends of the rods, the rods having their ends proectmg above and below thegate and being movable in the respective bearings, and means to enable adjustment of the diameters of the bores of the bearings.

4. In a power press, a. frame having a bed and a head located above the bed in spaced relation thereto, bearings carried by the head, bearings carried by the bed and alined 5. In a power press, a. frame having a bed I and a head located above the bed in spaced relation thereto, bearings carried byttthe head, bearings carried by the bed and alined with. the respective bearings of the head, a. gate between the bed and head, a plurality of guide rods, split portions carried by the gate and formed to receive intermediate por tions of the guide rods, and means to secure the split portions to the rods so as to fixedly secure the latter to the gate, said rods having their ends extending above and below the gate and being received in the respective bearings.

. 6. In a power press, a, frame having. a bed and a head located above the bed in spaced relation thereto, bearings carried by the head, bearings carried by the bed and alined with the respective bearings of the head, a plurality of guide rods, cylindrical members on the gate formed to receive intermediate parts v ings carried of the rods and projecting downwardly from the ate and toward the bed, and means to fixefly secure the rods in the members, the rods having their ends extending above and below the gate and being received in the respective bearings.

7 In a power press, a frame having a bed and a head spaced above the bed, alined bearthe bed and by the head, a gate between t e bed and head, downwardly extending split members carried by the gate, guide rods having intermediate portions thereof received in the members, and means to clamp the split members to the rods so as to fixedly secure the latter to the gate, the

' rods having their ends projecting above and below the gate and movably received in the bearings.

8. In a power press, a frame having a bed and a head located above the bed in spaced relation thereto, bearings carried by the I head, bearings carried by the bed and alined with, the respective bearings of the head, a gate between the bed and head, and a plurality of guides fixedly secured to the gate having parts projecting above and below the gate and being movable in the respective f bearings.

9. In a power press, a frame having a bed and a head located above the bed in spaced relation thereto, bearings carried by the head, bearings carried by the bed and alined with the respective bearings of the head, a gate between the bed and head, a plurality of guides fixedly secured to the gate having parts projecting above and below the gate and being movable in the respective bearings, and means to efl'ect adjustment of each of the bearings so as to accurately aline same with respect to the guide rods.

10. A power press having a frame with a bed and a head portion opposite to each other and anopen space therebetween, a gate movably mounted between the head and the bed; a plurality of guides fixed to the gate and projecting above and below the same and through the said bed and head portions; an extension rod connected wit-h each of'said guides; a collar thereon; anda spring be tween the guide and collar.

11 In combination with-the frame of a press, guides, a gate associated with the guides, and a bearing for each of the guides, having a conical exterior, a slot extendin through the wall thereof into the bore of the bearings, and means for moving the endwise position of the bearings whereby the diameter of said bore may be varied to a limited degree.

In testimony whereof, I have hereunto af-

Images