US1794691A - Forming machine - Google Patents

Description

March 3, 1931. E. HOUSER FORMING MACHINE Filed Dc, 23, 1929 :s Sheets-Sheet 1' March-3, 1931. E. HOUSE R 3 5 FORMING MACHINE Filed Dec. 25. --l929 3 Sheets-Sheet. 2

March 3, 1931. HOUSER 1,794,691

FORMING MACHINE Filed Dec. 23, 1929 3 Sheets-Sheet 3 Z5; I I Z6 4 a'g as l7 a Patented Mar. 3, 1931 UNITED, STATES.

' PATENT: IC -e EDWARD HoUsEmfonMUNom, INDIANA, ASSIGNOB TO THE MOORE COMPANY, or

mnvcm, INDIAN A CORPORATION OF INDIANA FORMING MACHINE. 7

My invention relates to forming machines and is of particular service in shaping the borders that surround coiled spring mattresse's, these borders being made of rods which the coiled springs are connected.

In one feature of my invention an anvil is employed which has an arcuate working surface upon which the rod or other object to be shaped is pressed by means of a'forming member, preferably a roller, which is mounted to turn upon the axis of the anvil.

In another featureof the invention two forming devices may beemployed, each preferably made as hitherto generally described. These two forming devices simultaneously operate upon a rod to bend the end portions thereof at right angles to the intermediate portion to form the'rod into U shape. Two

of these bent rodswith their'ends Welded together may constitute the mattressborder hitherto mentioned. I p

The inventionin its preferred embodiment,

- is inclusive of reciprocating rack bars which are in mesh with arcuate racks or gears that are concentric with the anvils, these two rack barsbeing engaged byopposite sides of gear-i ing to cause them to be simultaneously moved inward and simultaneously moved outward to" operate simultaneously upon the 'rod or other object which isto be shaped atseparated parts. A fly wheel. is brought into actuating relation with another rack bar that operates thegearing that pertains to the first mentioned rack bars. 5 The mechanism through which the flyv wheel operates is preferably similar to that employed in' punch presses, and controlled by similar pedestal operated clutching mechanism. The rack bar that is directly controlled by the fly wheelis desirably vertically arranged and'is moved up and down for each cycle of operations,

' causing outward and inward movement of the rollers for 'each cycle'of operations.

The invention has other characteristics and will be more fully set forth in connection with the accompanying drawingsinwhich Fig. 1

is an elevation illustrating the preferred embodiment thereof; Fig. 2' illustrates two halves of a'border, which may be formed by the machine, these two halves being welded on a larger scale.

togethelysome of the springs of the mattress havingsuch a. frame being also, illustrated; Fig. 3 is a sectional view on line 3+3 'ofFig. 1; Fig. 4 is a sectional View on line 4+4 of Fig. 3; Fig. 5 is a sectional view on line 5e-5 of Fig. 1; Fig. "6is a sectional View on line 66 of Fig. 1, on a larger scale; Fig. 7is a sectional view on line 7 7 of Fig. 1-; and Fig. 8 is a sectional View on line 88 of Fig. 1, also and-extending along the bar, whereby the anvils maybe adjusted somewhat along the bar and with respect to each other. The bar is further supported by two pedestals 9 and 10 which arerespectively bolted to the anvils 5 and 5';

The rods or} blanks 11 which are to be shaped are carried by the brackets 12 and 13 which are bolted to the pedestals 9 and 10, respectively. The bracket 12has two pocketed portions 12, 12 and the bracket '13 has two pocketed portions 13 and 13 The unformed rods are carried in the pockets 12,

13'. After the rods have beenshaped, they ".85

are carried in the pockets 12 ,13 i a Each rod 11 that is to be shaped is placed upon the anvils 5 and 5, the position of such rod being defined by the stop 14: which is provided upon the left hand end of the mounting bar 3; v Theleft hand end of the rod 11 that is-to be'operated upon extends" s'ufliciently to the left of the anvil 5 and the right the right of the anvil 5, so that after the forming mechanism has been applied-to the rod, the end portions of suchrod will be g. 2. I will U-shaped half 15 ofthe' frame, Fi

. describe the forming mechanism at the left.

use"

hand end'of {this rod extendssufficiently-to-- I downwardly defiected'suficiently to make a 7 ing mechanism with prime exponents added.

nism at the right hand end of the machine belng similar thereto, snmlar characters of reference being applied to the latter form- The member which cooperates with the anvil 5 to turn the left hand end of the rod 11 is inclusive of a lever 16 which carries a roller 17. The lever 16 is journaled upon a stationary shaft 18, which is bolted to the adjacent anvil 5. This anvil has an arcuate forming surface which is coaxial with the lever and which bulges toward the adjacent end of the machine. When the lever 16 is turned toward the adjacent end of the ma chine, said roller rolls upon the rod 11 that is interposed between it and the anvil, whereby the adjacent end of said rod is turned at right angles to the intermediate portion of this rod. Both ends of th rod 11 are operated upon simultaneously, as will later. appear, whereby the rod is transformed into one of the U-shaped members 15, Fig. 2. The roller 17 is journaled upon a stud 19 having a reduced portion that passes through an upright slot 20 in the lever 16. A nut 21 isscrewed upon said stud to clamp the lever between it and the larger portion of the stud, whereby the position ofthe forming roller 17 is determined. A block 22 is also slidingly re-- ceived in the slot 20. A bolt 23 is screwed through the outer end of the lever into ongagement with said block, whereby the block engages the stud and serves to prevent the stud and the roller thereon from being tilted in the forming operation. The lever 16 is operated by a mutilated or arcuate gear 24' which is normally fixed with respect to and is coaxial with such lever. Said mutilated pinion or arcuate. rack 24 is in mesh with the teeth of a reciprocable bar 25. This rack bar is directed at its outer end by the channel bar 26 which is upon the bracket 27. This bracket is bolted to the mounting bar 3, the mounting bolts 28 passing through arcuate slots in the bracket 27 that are coaxial with the lever 16, wherebythe position ofthe guide 26 is adjusted to compensate for change in position of the guide that would result from the adjustment effected by the corresponding bolts 7 The inner end of the rack bar 25 is guided by the tablejl, which is formed with a guiding groove, one side of which is engaged by one side of said rack-bar. A spur gear 29 engages the rack teeth upon the inner end of the bar 25 whereby said rackbar'is moved longitudinally along the guides 'pro-,

vided for it and to effect oscillating movement of the corresponding arcuate rack. 24.

' The spur gears 29 and 29 arecoaxial and bars, the roller 17 is moved counterclockwise over the arcuate surface of the anvil 5 and the roller 17' ismoved clockwise over the arcuate surface of the anvil 5. To prevent the rod 11 that is being operated upon from buckling upwardly between the anvils, I provide abutments 34 upon the mounting rod 8 and which overlie such rod. These abutments also serve as positioners for the rod, as such rod is being located upon the anvi-ls. 7

Any suitable means may be employed for reciprocating the upright rack 38. The means illustrated is inclusive of a fly wheel 35 from which. motion is imparted to the rack bar during automatically limited periods. The usual. mechanism employed for this purpose is found in punch presses, for example.

It wvillnot be necessary, therefore, to describe this mechanism in detail, it being sufficient to say that the rack bar 33 is mounted in a cross head 36 which is reciprocated within guides 37 operated by the pitman 38 which is operated by the crank 39 that, in turn, is operated by the fly wheel 35 through the intermediation of well known clutching mechanism 40, each time this clutching mechanism is brought into action by the depression of the foot leveretl which is connected with the clutching mechanism by the link &2, as is 7 well understood by those skilled in the art.

Eachtime the foot lever 41 is depressed, the

rack bar 33 is first-lowered and then. elevated,

whereby the rack bars 25 and 25 are first -moved outwardly and then are inwardly withdrawn, with the results stated. After each complete cycle of operations of the rack bars and'associatedparts the formed rod is ejected. This ejecting means is inclusive of pawls 43, 43 which are respectively pivotally mounted upon mountings 44 and 44 that are carried byv the rack bar-s25 and 25', respectively. These pawls, in their outward movements with the rack bars that carry them, ride over. ends of the bell crank levers45 and 45, but; when the said pawls move inwardly, they arebrought into engagement with these bell crank arms after the rod has been. formed and force movement of the bell cranks in horizontal planes, the other ends of saidbell cranks pushing laterally upon the formed- -rodto movethis rod from the anvils and deposit the intermediate portion thereof in the pockets 12 13 Afterthe bell cranks have performed their function, they are retracted (ill by the coiled springs 46, 46' against stop pins 47, 4-7 that 'definethe idle positions of said bell cranksf. v

The guide 48 that pertains to the inner end of the rack bar 25 is adjustably mounted upon the cross head guides 37 to compensate for adjustment effected at the corresponding bolts 7. T he arcuate rack or gear 24 is secured in fixed relation with a corresponding lever 16 by means ofbolts 49 which pass through slots in said gear that are coaxialtherewith for purposes of netment. The two shafts 18, 18 have reduced portions which pass through the struts 50, 50' and are clampedthereto by nuts 51, 51'. These struts are bolted. to the pedestal 2. They take part in holding said shafts 18, 18' at right angles to the mounting bar 3. The shafts 18,18 pass through horizontal slots that areformed in the struts 50, 51, whereby adjustment ofthe rear ends of the shafts may be effected, the front ends of the shafts being adjustable, as previously described.

It will be observed that the gears which operate the racks 25 and 25 are of different diameters and that the anvils in association with these racks are of corresponding diameters. This enables the formation of curvatures of differing diameters in the corners of the formed rods, it being usual to make the borders or frames that surround the mattresses of such different curvatures at their corners, as illustrated in Fig. 2.

Changes may be made Without departing from the invention.

Having thus described my. invention, I claim: 3 i

1. A forming machine including one member in the form of an anvil having an arcuate work engaging surface; a work engaging member coaxial with said work engaging surface, said members being relatively rotatable and related to receive and engage work therebetween; age-ar in connection with one of the aforesaid members to turn it with re spect to the other; an operating reciprocating rack in mesh with said gear; and an ejector operable by said rack and related thereto to be operable thereby after the conclusion of the forming operation.

, 2. A forming machine including one member in the form of an anvil having an arouate work engaging surface; a second member in the form of a roller opposite the anvil; a mounting on which the roller turns, said anvil and roller being related to receive and engage Work therebetween, said mounting and anvil being coaxial and relatively rotatable; a gear coupled with one of the latter two elements; a reciprocating operatingrack in mesh with said gear; and an ejector operable by said rack and related thereto to be operable thereby after the con clusion of the forming operation.

3. A forming machine including one member-in the form'of an anvil having an arcuate work engaging surface; a work engaging member coaxial with said work engaging surface, said members being relatively rotatable and related to receive and engage work thereing operating engagement with said lever when the rack is moving 1H 1ts non-operating stroke. I

4. A forming machine including one member in the form of an anvil having an arcuate work engaging surface; a'second member 1n the form of a roller opposite the anvil; a

mounting on which the roller turns, saidanvil and roller being related to receive and engage work therebetween, said mounting and anvilbeing coaxial and relatively rotatable; a gear coupled with one of the latter two elements a reciprocating operating rack in mesh with said gear; an ejector operable by said rackand related thereto to be operable thereby after the conclusion. of the forming oper ation; a bell crank lever positioned to engage andjejeet the formed work; and a pawl R coupled with said rack and in escaping relation with the bell crank when the rack is moving in a functioning direction and having operating engagement with saidlever when the rack is moving in its non-operating stroke.

5. A forming machine including two anvils each having an arcuate work engaging surface; two work engaging members each an- .80 "moving 1n a function ng directlon and hav- 'vil having a work engaging member individual thereto and coaxial therewith; and means for effecting relativerotation of each anvill and the work engaging member individual thereto, in the forming operation, and oppositely to the direction of the relative rotation of the other anvil and work engaging member related thereto. r a 6. A forming machine including two anvils eachhaving an arcuatework engagingsurface two work engaging members eachanvil having a work engaging member individual thereto and coaxial therewith; two gears, each anvil and the cooperating work engaging member having a gear individual'thereto,

which is connected with one of these elements toturn it with respect to the other; two operating reciprocating racks, each of the aforesaid gears having such a rack individual thereto and in mesh therewith; and means for reciprocating said racks in opposite directions.

7 A forming machine including two anvilseach having an arcuate work engaging surface; two work engaging members each anvil having a work engaging member individual thereto and coaxial therewith; two gears, each anvil and the cooperating work engaging member having a gear individual thereto, which is connected with one of these elements to turn it with respect to theother;

two operating reciprocating racks each of the aforesaid gears-having such a rack individual thereto and 1n mesh therewith; gearing 111 mesh with both of said racks and effecting reciprocation thereof in opposite directions;

and a reciprocable rack in mesh with said gearing.

8. A forming machine including two anvils each having an arcuate work engaging surface; two work engaging members, each anvil having a work engaging member individual thereto and coaxial therewith; two gears,

each anvil and the cooperating work engagmg member having a gear individual thereto, which is connected with one of these elements to turn it with respect to the other; two operating reciprocating racks each of the afore said gears having such a rack individual thereto and in mesh therewith; gearing in mesh with bothof said racks and effecting reciprocation thereof in opposite directions; a rack in mesh with said gearing; and tripping mechanism in actuating relation with the latter rack.

9. The structure of claim 7 wherein the gearing is inclusive of two gears of different diameters, one in mesh with one of the racks operated by the gearing, and the other in mesh with the other rack operated by the gearing, thework engaging surface of the anvil that is associated with the rack that is operated by the gear of smaller diameter being of shorter radius than the work engaging surface of the other anvil.

10. The structure of claim 8 wherein the gearing is inclusive of two gears of different diameters, one in mesh with one of the racks operated by the gearing, and the other in mesh with the other rack operated by the gearing, the work engaging surface of the anvil that is associated with the rack that is operated by the gear of smaller diameter being of shorter radius than the work engaging surface of the other anvil.

In testimony whereof, I hereunto subscribe V my name.

EDWARD nousna'

Images