US2301210A - Edge setting machine - Google Patents

Description

Nov. 10, 194.2. w. HAMANN ETAL EDGE SETTING MACHINE 4 Sheets-Sheet l Filed Sept. 21,' 1940 III Il:

N0V 10, 1942f uw. HAMANN ETAL 2,301,210

EDGE SETTING MACHINE Filed Sept. 21,y 1940 4 Sheets-Sheet 2 l /M/ NTUQS Ti g3.

Nov. 10, 1942. w. HAMANN ETAL 2,301,210

EDGE SETTING MACHINE Filed Sept. 2l, 1940 4 Sl'uaets-Sheet 5 Nov. 10, 1942. w. HAMANN TAL 2,301,210

EDGE SETTING MACHINE ll'iledSept.v 2l, 1940 4 Sheets-Sheet 4 Patented Nov. 10, 1942 EDGE SETTING IVIACHINE William Hamann, Irondequoit, and Ralph] H. Weller, Rochester, N. Y., assignors to United Shoe Machinery Corporation, Flemington, N. J., a corporation of New Jersey Application September 21, 1940, Serial No. 357,792

(Cl. lit-78) 5 Claims.

erates at high speeds, particularly so in some of' the more recent machines where Yspeeds of 6,000 tool oscillations per minute are common. In

the illustrated machine, the high-speed operat-v ing mechanism, which includes a rotatable drive shaft and an oscillatable tool shaft, is mounted in a heavy spring-supported Vibration-absorbing block or support which is generally similar to the one disclosed in United States Letters Patent No. 2,190,810, granted February 20, 1940, upon an application liled inthe name of L. E. Topham. Obviousiy, it is highly important that all of the high-speed moving parts be constantly and thoroughly lubricated during the operation of the machine. To that end, a force-feed 1ubricating system is provided which is arranged to force lubricating oil to the bearings of the moving parts of the operating mechanism. The illustrated lubricating system, which is disclosed and claimed in an application for United States Letters Patent Serial No. 406,865, filed August 14, 1941, in our names and includes an oil pump, is mounted on the block so that it moves with the block when the supporting springs yield. This construction permits the use of non-flexing conduits leading from the pump to the bearings so that the oil passages do not kink or bend with the movement of the block relatively to the housing and, as a result, the lubricating system operates with a maximum of eiliciency at all times.

In accordance with a feature of the present invention, the oscillatable tool shaft is made in two parts which may be removed from opposite ends of the heavy vibration-absorbing block and adjacent ends of which have complementally shaped interfitting surfaces, the machine comprising crank mechanism for transmitting motion between the drive shaft and the oscillatable shaft, and a clamping collar on the crank mechior surrounding and clamping together the intertting portions of the two-part oscillatable shaft and serving to connect the crank mechanism to that shaft. With the above arrangement it is possible to remove from the housing either section of thev two-part oscillatable tool shaft and the remainder of the driving mechanism without necessitating the removal of the block from the machine. The drive shaft, together with an eccentric formed integral therewith, as will appear later, is also removable from one end of the block.

With the above and other objects in View, the'- invention will now be described with reference to the accompanying drawings and Will be pointed out in the appended claims.

in the drawings:

Fig. 1 is a side elevation of an edge setting machine embodying the features of this invention, the machine being equipped With an electric driving motor; v

Fig. 2 is a side elevation of a factory powerdriven unit adapted to operate the machine shown in Fig. l;

Fig. 3 is a longitudinal sectional view on an enlarged scale taken through the head of the machine shown in Fig. 1;

Fig. 4 is a plan View on an enlarged scale of the heavy bearing block which is mounted in the head of the machine shown in Fig. 1;

Fig. 5 is a sectional View taken along line-V--V of Fig, 3;

Fig. 6 is an elevation of the left end of the kbearingA block shown in Fig. 4, the view illustrating the mounting of the oil pump and its connection with the rotatable drive shaft; and

7 is a fragmentary end View on an enlarged scale of the head of the machine shown in Fig. 1, the View illustrating the assembled relation of the end of the bearing block with respec to the end wall of the housing.

The illustrated machine embodying my invention is a tWin-edge-setting machine consisting of a housing which is composed of a column i0 (Fig. l) adapted to be fastened to the floor by appropriate means and a head Il which is equipped with similar tool carrier assemblies l2 located on opposite sides. The tool carrier assemblies l2 are similar to those disclosed in the application for United States Letters Patent Serial No. 335,725 filed May 17, 1940, in the name of William Hamann, each of the assemblies including a shaft head I3 which corresponds to the shaft head it in the Hamann application. The head il is separated from the column l0 by a horizontal partition I4 (Fig. 3) which is depressed on one side of the machine to form a sump IE for the reception of lubricating oil. Formed in the partition on the other side of the machine is a rectilinear iiue 2i) (Figs. 3 and 4) which extends upwardly through the head Il and provides a passageway for a current of air, which is circulated by means that Will be described further along in this specification. The air passing through the flue 20 is utilized to cool the oil in the sump I6 and, in order to obtain the maximum benefit from this air, the sump is provided with a plurality of cooling fins 22.

Located within the head is a heavy support or bearingblock 24 (Figs. 3 and 4) which is supported by and is spaced from the partition |4 by four springs 26 (Fig. 6) that are located at the bottom corners 21 of the block. The block is provided with oppositely located cylindrical portions 29 (Fig. 4) which extend outwardly from the ends thereof and project through the side walls of the head Each of these cylindrical portions is supported by four springs 23 (Fig. '1) which are located 90 apart in filler plates 33 `that close the openings in the head through which the cylindrical end portions 23 pass when the block is placed in the machine. The space between cylindrical portions 29and the filler plates 33 is sealed by packing 32 and the ller plates are fastened to the head by screws 34 (Figs. 3 and '1). Thus, it will be seen that the heavy block 24 is supported by and is spaced from the housing by the springs 26 and 23. The function of the heavy bearing block 24 and springs 26 and 28 is generally the same as that of the similar block and springs disclosed in the before-men tioned United States Letters Patent No. 2,190,210, to L. E. Tophain.

The block 24 has formed therein a large rec tangular opening 36 (Figs. 3 and 4) that extends heightwise through the block and receives the flue 26 when the block is mounted in the head Also formed in the block a short distance to the left of the large opening 35, as viewed in Fig. 3, is a smaller opening 33 which likewise extends heightwise through the'blockV and which receives part of the tool shaft operating mechanism. The block 24 is provided with two height wise spaced longitudinal horizontal bores 33 and 46 (Fig. 3), the upper bore 39 extending through the cylindrical portions 29 of the block land the lower bore 40 extending only through the sections of the block on opposite sides of the opening 38. Each of the bores is provided with bearings 25. Mounted in the upper bore 39 is an oscillatable shaft 4| consisting of two sections 42, 43 which are connected respectively at their outer ends to the tool carrier assemblies l2 by the heads |3 and are provided at their adjacent ends with complementa-Hy shaped overlapping sections 44. Mounted in the lower bore 4i) (Fig. 3) is a I rotatable drive shaft 45 consisting of an inner end portion 46 that extends into the flue 2D, a relatively small bearing portion 65 located in the block section next to the flue, an eccentric midsection 41 in the small block opening 36, a relatively large bearing section 68 in the outer bearing block partition and an outer end portion 48 which extends a short distance beyond the end of the block. The eccentric 41 is connected with the oscillatable shaft sections 42, 43 by an leccentric strap 49 (Fig. 5) and a crank 56 which has a split hubV 52 that surrounds the overlapping shaft sections 44 and is clamped thereto by a screw 54. Thus, it will be apparent that the crank hub 52 both clamps together the sections of the oscillatable shaft and fastens the crank to the shaft, and thus forms a driving connection between the eccentric 41 and the oscillatable shaft.

The inner end portion 46 of the rotatable drive shaft 45 (Fig. 3) that extends into the ilue 23 has mounted thereon a pulley 54 which is held on the shaft by a set screw 12 and is connected to the shaft by a key 16 that has a sliding fit in a keyway formed in the pulley. The other end portion 46 of the rotatable drive shaft has mounted thereon a gear 14, and is provided with a longitudinally extending threaded recess 15 the purpose of which will be explained subsequently and which is normally plugged by a screw 16.

The high speed moving parts of this machine are at all times thoroughly lubricated by a forcefeed lubricating system which will now be described. This system comprises a gear type oil pump 86 (Figs. 3 and 6) which is fastened by screws S2 to the left end of the block 24, as viewed in Fig. 1, and extends down into the sump I6. The pump drive shaft 84 is located at one side of the gear 14 on the end of the rotatable drive shaft 45 (Fig. 6) and is coupled thereto by a gear 88. Upon operation, the pump draws oil from the sump through a strainer 93 and forces it to the different bearings through passages which will now be enumerated. The rotatable drive shaft 45 and the crank mechanism are lubricated by oil which is forced from the pump through a passage 94 (Figs. 3 and 6) in the block to the large bearing portion 63 and to a central passage 96 in the rotatable drive shaft, thence through appropriate openings to the bearings of the eccentric portion 41 and the relatively small bearing portion 66. Oil is also forced from the passage 36 through a central opening 38 in the eccentric strap 43 (Fig. 5) to the joint between the strap and the crank 53. The oscillatable shaft 4| is lubricated by oil forced from the pump Si] through a passage |00 (Fig. 6) to the top of the block, thence through a pipe |62 to pipes |34, IllB, and |68 (Fig. 3) which lead the oil to the three bearings for the oscillatable shaft. The lubricating oil escaping from the bearings is kept within the head by the packings 32 (Fig. 3) which surround the cylindrical block portions 29, the packing rings |||l which seal the openings in the iiue 20 in which the shaft section 42 is located, and the shield ||2 which protects the iiue opening in which the section 46 of the rotatable drive shaft is located. From the foregoing description it will be noticed that al1 parts of this lubricating system are xedly and non-flexibly connected with the block 24 so that they move with the block relatively to the housing and do not kink or bend, with the result that the oil is circulated at all times with the maximum of eciency. Also, by using a common drive for the oil pump and the tool shaft, a simple and efficient operating construction is provided which ensures effective lubrication of the parts continuously during the operation of the machine.

Provision has been made for the removal of the rotatable drive Vshaft and either one or both of the sections 42, 43 of the oscillatable shaft from the machine without removing the heavy block from the head. To this end, the housing has been provided with a cover plate 56 which includes an opening 51 that is located at one side of the longitudinal axis of the oscillatable shaft 4| so that when it is desired to remove one or the other of the sections 42, 43, a wrench 58 (Fig. 5) can be inserted through the opening 51 and the screw 54 backed off suiliciently to loosen the hub 52. The top edge of the block on the right of the crank mechanism as shown in Fig. 5 is channeled at 59 to provide ample clearance for wrench 58 when it is desired to turn the screw 54. The cover plate 56 is also provided with a rectangular opening 60 (Fig. 3) that is shaped similar to and registers with the top ,edge of the flue 2|), the opening being protected by a wire guard 6|.

The "rotatable drive shaft 45 can be removed through an enlarged opening 62 (Fig. 3) which is formed in the left side of the housing, as viewed in Fig. 1, opposite to the oil pump 80 and is normally closed by a side plate 63. The strainer 90 can also be removed through this opening when it is desired to clean the same. When it is desired to remove the rotatable drive shaft from the block 24, the oil pump is removed, the set screw 12 (Fig. 3) backed oif and then the screw 16 is removed from the end of the shaft. A handled tool having a threaded end portion is next screwed into the recess 15, thereby securing a rm hold on the shaft which can then be pulled from the block. As the bearing section 68, which is the largest section of the shaft, is located nearest the end of thev block, the shaft can be withdrawn without difculty.

The illustrated machine may either be driven by a self-contained power unit or from a factory source of power such as overhead pulleys. rihe embodiment shown in Fig. 1 is equipped with a self-contained power unit that consists of an electric motor ||4 having a pulley ||6 which is coupled with the pulley 64 on the rotatable drive shaft by a belt ||8. The pulley IIS is equipped with fan blades |20 that draw air in through louvers |22 in the casing opposite to the motor ||4 and force the air upwardly past the ns 22 on the sump through the flue 20 and out through an opening 66 in the cover plate 56, thereby cooling the oil in the sump I6.

When the machine is to be driven by a source of factory power such as an overhead shaft, the belt ||8 is disconnected, the cover plate 55 removed, and the cover plate assembly |26 (Fig. 2) is mounted on the top of the housing in its stead. The cover plate assembly |2 includes an enclosed portion |23 that opens onto the flue 2t, and in which is mounted a pulley |30 that is provided with fan blades |32. The pulley |30 is connected to a countershaft |34 upon which is mounted a fixed pulley |36, an idler pulley |37 and a belt shifter |38. The pulley |30 is connected with the rotatable drive shaft pulley 64 by a belt which extends down through the flue 2|) and around the pulley 64. This connection is made by loosening the hub screw 54 (Fig. 5), pulling the oscillatable shaft section 42 to the right, as viewed in Fig. 3, until it clears the flue 2|), whereupon the belt may be passed down through the flue 20, around the pulley 64, and connected to the pulley |30. After this connection has been made, the section 42 is moved back to its assembled position and is coupled with the section 40 by tightening the screw 54. When the pulley |30 is rotated to drive the machine, the blades |32 suck air through openings in the portion |28 and force it down through the flue 20, past the sump I6, and out through the louvers |22, cooling the lubricating oil in the manner just described.

Having thus described our invention what we claim as new and desire to secure by Letters Patent of the United States is:

l. An edge setting machine comprising a housing, a block located within the housing, edge setting tool operating mechanism journaled in the block, said mechanism comprising a rotatable drive shaft and a two part oscillatable tool shaft, the adjacent ends of the two oscillatable shaft parts having complementally shaped interitting surfaces, crank mechanism for transmitting motion between the drive shaft and the oscillatable shaft, and a clamping collar on one of the members of the crank mechanism for surrounding and clamping the intertting portions of the two part oscillatable shaft thereby to connect the crank mechanism to that shaft and to fasten the shaft parts together.

2. An edge setting machine comprising a housing having an opening, a heavy block located within the housing, a tool shaft and a drive shaft journaled in the block, crank mechanism interconnecting the tool shaft and the drive shaft, said crank mechanism including a split shaft clamping member located in a position which is accessible to a tool inserted through the opening in the housing so that the shaft clamping member can be loosened and the shafts removed from the block without necessitating the removal of the block from the housing.

3. An edge setting machine comprising a housing, a heavy block located within the housing, a two-part tool shaft and an eccentric drive shaft journaled in the block, crank mechanism interconnecting the eccentric portion of the drive shaft and the tool shaft, said crank mechanism including a member having a split clamping collar thereon arranged to surround and fasten together the adjacent ends of the two part tool shaft, and a clamp operating member arranged in a position which is accessible to a tool inserted through an opening in the housing so that the clamping collar can be loosened and the shafts removed from the block without necessitating the removal of the block from the housing.

4. An edge setting machine comprising a housing having a head and a cover-plate, a heavy block mounted within the head of said housing, a two-part tool shaft journaled in the block, driving mechanism including a clamping member arranged to couple the two shaft parts together, said cover plate having an opening therein arranged for the insertion of a tool for operating the clamping member whereby said clamping member may be loosened and the shaft sections selectively removed from the block without removing the cover plate or the block,

5. An edge setting machine comprising a housing, a heavy block located within the housing, tool operating means including a rotatable drive shaft journaled in said block, said drive shaft having an eccentric integral therewith and being arranged for withdrawal from one end of the block, said housing having an opening therein opposite the end of the block from which the shaft is withdrawn so that the shaft together with the eccentric can be removed from the block without necessitating the removal of the block from the housing.

WILLIAM HAMANN. RALPH H. WELLER.

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