US2479588A - Routing and planing machine - Google Patents

Description

1949. v 1w. DIXON 2,47 88 ROUTING AND PLANING MACHINE Filed Jan. 25, 1945 '2 Sheets-Sheet 1 l 1949- J. w. DIXON ROUTING AND PLANING MACHINE 2 Sheets-Sheet 2 Filed Jan. 25, 1945 ram/5n Patented Aug. 23,1949

ROUTING AND PLANING MACHINE John W. Dixon, Indianapolis, Ind.; Louise La Von Dixon, administratrix of said John W. Dixon,

deceased Application January 25, 1945, Serial No. 574,461

4 Claims. 1

This invention relates to a router and planer for use in such places as press rooms and composing rooms for routing out cuts, stereotype casts, linotype slugs, or planing them or parts thereof to uniform type-high conditions. A primary object of the invention is that through its use, a high degree of accuracy, high speed, for use on all materials employed by the printing trade may be had. The invention permits results to be obtained within micrometer measurements, and at the same time it is relatively inexpensive to the trade.

These and many other objects and advantages of the invention, including the possible use of the operator of both of his hands with his feet squarely upon the floor without having to use foot pedals or the like, will become apparent to those versed in the art in the following description of one particular form of the invention as illustrated in the accompanying drawings, in which Fig. l is a View in side elevation with parts broken away of a structure embodying the invention;

Fig. 2, a top plan view;

Fig. 3, a vertical, central transverse section through the operating motor and tool elevation control unit on an enlarged scale;

Fig. 4, a detail in side elevation of the tool shaft drive interconnection with the motor shaft; and

Fig. 5, a wiring diagram illustrative of the motor and tool shaft control.

Like characters of reference indicate like parts throughout the several views in the drawings.

A suitable table or base I is provided on which the plates or cuts may be placed or secured by any of the conventional methods, such as by clamping within a T slot ll, all as is well known to those versed in the art. A post I2 is mounted to extend vertically above the table l0, and in the present form is shown as being mounted on the table at its left rear corner. A bracket I3 has a long vertical sleeve [4 revolubly telescoping over the upper end of the post l2 to have an arm l5 extending horizontally therefrom to be swung around at a constant elevation above the surface of the table l0.

On the outer free end of this arm I5 is a yoke l6 secured thereon is a fixed manner and between the legs of this yoke is rockably mounted a motor carrier arm I! to pivot in the yoke IS on a vertical axis therethrough as defined by the pivot and securing bolt 18. The arm I! is provided with an integral strap is slit on one side to have out-turned cars 20 and 2i normally spaced apart one from the other and interconnected by a take up bolt 22 to reduce the internal diameter of the strap I9.

This internal diameter of the strap i9 is made to be such that when the bolt 22 is not drawn up, and the ears 20 and 2| left in their normal spaced apart state, a motor 23 may be received slidingly vertically through the strap l9 and secured then in any desired elevation by being frictionally gripped by the strap H! as the ears 2D and 2| may be drawn together relatively by taking up the bolt 22. In order to permit micrometer vertical positioning of the motor 23 relative to the strap l9, some means may be provided for lowerll'lg and raising the motor 23 upon release of the bolt 22.

In the present form of the invention, such means is shown as consisting of a pin 24 fixed in the housing of the motor 23 to extend outwardly through an inclined slot 25 provided in the strap 19. This mechanism operates to cause the motor 23 to rise relative to the strap l9 by revolving the motor within the strap in a counter-clockwise direction, Figs. 1 and 2, and to lower the motor by revolving the motor in a clockwise direction. That is, as the motor 23 may be turned counter-clockwise, the pin 24 will travel upwardly in that slot 25, and reverse travel of the motor will cause the pin 24 to travel downwardly in that slot. The angle of the slot relative to the horizontal plane will determine the degree of rise and fall in accordance with the amount of rotary travel of the rotor itself. Obviously the lower the angle of the slot 25 the easier it may be to secure fine adjustments of elevation of the motor 23.

At any desired elevation of the motor, the bolt 22 may be taken up so that that elevation may be maintained. In order to hold the elevation of the motor more securely, a lever 26 secured to the arm l1, herein shown as through the strap l9, rides over the bar 21 mounted across the front portion of the table ill in the present showing. This bar 21 has its upper edge in exact parallel alignment with the top face of the table Ill, and as the motor 23 may be shifted around to any desired position over the table ID by the operating lever 26, the motor 23 will remain in its fixed elevation as above indicated.

The motor 23 drives any type of routing or planing tool 28 that may be desired to be used for the particular job. Now in order to prevent having to bodily lift the motor 23 to lift the tool 28 out of cutting position over any printing surface of a plate or cut or the like that may be on the table ID, a structure is provided whereby the tool 28 is normally held in an open position above that printing surface elevation and is only loW- ered into cutting position when the motor itself is set into operation. This mechanism is illustrated particularly in Fig. 3. 7

Within the motor 23 is the usual armature 29 having a shaft 30 extending vertically therefrom and beyond the top and bottom ends. shaft 30 is tubular and carries slidingly therethrough a tool shaft 3| on the lower end of which is a chuck 32 provided to carry a tool 28. This shaft 3| is longitudinally shiftable through the shaft 30 but is driven thereby by any suitable clutch means herein shown as by a pin 33 fixed through the shaft 3| to engage slidingly in vartical slots 34 and 35 provided in the lower end of the shaft 30.

The upper end of the tool drive shaft 3! extends beyond the upper'end of the armature shaft 30 and enters a counter bore 36 provided in the extension of the housing of the motor 23 where a head 31 may travel vertically within that bore 36. A spring-36 bearing by its lower end against the lower end or the counter bore so" also bears This against the underside of the head 3-? by its upper 7 end to retain the shaft 3! normally in an upper position. 7 In other words to lower the shaft '31 to bring the tool 28- into a cutting position, the shaft gt needs to be depressed to overcome thespring In order that the'sha'ft '31 be depressed only when the motor 23- is set in operation, an electrical operator therefor is provided that maybe energized only when the motor 23 is" energized. This may be done by placing the operator ctrcui't wi'th the motor circuit such as is indicated in Fig; 5 of the wiring diagram.

This operator consists essentially era solenoid mag-net carried within a housing semounted on the" upper end of the housing of the motor 2?; herein shown as by screw" threaded engagement with that portion of the motor housing-- which carries the counter bore 36". Centrally mounted within the housing 39 'is" a metal armature lil guided within acylinder M to confine the arrriature 40 to vertical travel.

A plunger-42 is axially carried by thelower' end of'the cylinder Al and has a stem 3 extending onup through the cylinder tape in the path or the armature 40'. The lower: end of the lun'ger' $72 by a reduced diameter portiorr l i 'riormally rests on the upper end oi the shaft it. 'Thesterrr ss 'is longitudinally guidedwithina. reduced 'di'-' ameter b'ore' in: the cylinder 41 and-has -'a sliding fit so that the plunger normallyorops gravity: to: the position-above indicated. Furthermore; :thi's normal position. is furtlier'isecured' by the weight or the: armature lfl" bearingvon the upper" end of. the: stem '43. The spring 38"isoff suflleientistrength to:support both the plunger'i'z and its. attached parts plus the arm'ature cl while at' th'e same timeholding the shaft 31 in its up: pemrost osition as; indicated in Fig'; 3.-

Now when the motor 23 1's ener'giz'e'dby closing; the: switch 45', Fig. 5, to receive" current froma line source, the: winding is or the solenoid simultaneously energized since it in circuit with the motor 23',- lierein-shownas-in parallel connection; Upon the energizing:- of'tne coil" 46 the-armature {40 is pulled downwardly within 'th winding la -the winding having sufficient to -pull the armature 1 '40 down to compress the" sprins 3B and iowertne-snait' 3F and co'n'se quently the tool 28 to its lowermost cutting position as determined by the lower end of the armature 40 striking the lower end of the armature bore in the cylinder 4|, thereby establishing a fixed position for the tool. The action of the solenoid is of suificient power to retain the armature in that lowered position against the normal resistance of the tool 28 in cutting the metal of the plate or cut. Then the tool 28 may be guided about over the metal being cut simply by shifting the lever 26 in the desired direction by sliding it over the bar 27. Then when the cutting is to be discontinued, the switch 45 is allowed to open so that both the motor 23 and the soienoid w'iriding G6 are de-energized whereupon the tool 28 is immediately raised by the spring 33 even before the armature 29 comes to a stop. In other words, as long as the tool 28 is in the cutting position the winding it remains energized, and immediately upon any opening of the circuit the tool 28 is pulled upwardly;

While I have herein shown and described the invention in the one particular form, it is ob vious that changes may be made in boththe mechanical and electrical design's'of the various parts and circuits all without departingfrom the spirit of the invention, and I do not desire to be limited to that precise form beyond the limita= tionsasmaybe imposed by the following claims;

I' claim:

1 In a routing and planing machine, a metor; motor carrying means shiftable horizontally} means for adjusting and fixing the meter on said means atselected elevations;- tool carrying means carried by said motor, vertically shift'a'ble there of; means normally yielding-1y holding" said tool carrying means in an upper position" of said vertical' travel; and electrically operated means err er'gi'zedf and tie-energized simultaneously with] said motor overcoming said holding means and shifting, said tool carrying means to a lower position of its; said 'verti'cal travel; and means- 0 "nfining saidmotor carrying means totravel at a} fixed elevation.

2. In a routing and planing machine. a motor; motor carrying means shiftab 1e horizontally; means for adjusting and fixing the motor on said means at selected elevations"; tool carrying means carried by'said' motor, vertically shiftable' thereof; means normally yielding'ly holding said rear carrying means in an upper position of said vertical travel; and electrically operated means energized and de-energiz'ed simultaneously with said motor overcomin said holding means and shifting said tool carrying me'ans to a lower-post tionof 'itss'aid vertical never; said motor having a tubular armature shaft; said tool; carrying means comprising a" tool chuck, and a shaft carryi ng the chuck and slidinglytelescopin'g with insaid armature shaft; and tool carrying hold ing means comprising" a spring 'lnterposed be tweeh abutmentsorr said motor and said chuck" Shaft; V

3; ma routing andplaning'machine, a motbjr; motor carrying m'eansshiftable horizontallyf means for adjusting and-fixing'the'motor onsaid n'fea'hs'at selectedelevationsi' tool carrying means carried by said motor, vertically shiftable th'ereof; meansnorm'ally' yieldi'ngly holding said tool carrying means in an" upper position of' said" ver tidal-travel; and electrically operatedmeans en-' ergizedand de ene'rg'i'z'edfsimultaneously with said n'io'tor" overcoming said holding means and shift" ing" said tool carrying means to a lower position or its" said-vertical travell said motor haviriga' tubular anmature shaft; said tool carrying means comprising a tool chuck, and a shaft carrying the chuck and slidingly telescoping within said armature shaft; and tool carrying holding means comprising a spring interposed between abutments on said motor and said chuck shaft; said electrically operated means comprising an electro-magnet, and an armature for depressing said shaft.

4. In a routing and planing machine, a motor; =motor carrying means shiftable horizontally; means for adjusting and fixing the motor on said means at selected elevations; tool carrying means carried by said motor, vertically shiftable thereof; means normally yieldingly holding said tool carrying means in an upper position of said vertical travel; and electrically operated means energized and de-energized simultaneously with said motor overcoming said holding means and shifting said tool carrying means to a lower position of its said vertical travel; said motor having a tubular armature shaft; said tool carrying means comprising a tool chuck, and a shaft carrying the chuck and slidingly telescoping within said armature shaft; and tool carrying holding means comprising a spring interposed between abutments on said motor and said chuck shaft; said electrically operated means comprising a solenoid magnet mounted on the motor, an armature shiftable by said magnet, means transmitting movement induced by said magnet of the magnet armature to produce downward travel of said tool chuck shaft in opposition to said spring.

JOHN W. DIXON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number

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