US1584263A - Slotter mechanism - Google Patents

Description

May 11 1926.

1,584,263 R. L. WILCOX SLO'I'TER MECHANISM 2 Sheets-Sheet 1 Filed August 14, 1922 May 11 1926.

' 1,584,263 R. L. wlLcox SLOTTER umcmmzsm Filed August 14. 1922 2 sheets-sheet 2 Patented May 11, 1926.

UNITE STTES issues rut RICHARD LESTER WILGOX, OF WATEBBUB Y, CONNECTICUT, ASSIG'NOR TO THE 'WATER- BURY FABREL FOUNDRY AND MACHINE COMEANY, OF NATERIBUBY, CONNECTI- OUT, A. CORPORATION OF CONNECTICUT.

SLO'ITER MECHANISM.

Application filed August 14, 1922. Serial No. 581,776.

This invention relates to new and useful improvements in slotter mechanisms and referring more particularly to a device of this character wherein blanks are delivered to a holding device and while so held a slot is cut therein.

It is the object of this invention, among other things, to provide in such a device an adjustable mechanism for operating the saw frame, for gripping the blank and in va' rious other ways to improve the structure of slotter mechanisms of this type so as to make the same more etlicient in its operation, more readily adjustable, and so designed as to be economically constructed and readily assembled and so far as possible the desired adjustments being made during the operation of the machine, if desired.

To these and other ends my invention consists in the slotter mechanism having certain details of construction and combinations of parts as will be hereinafter described and more particularly pointed out in the claims.

Referring to the drawings in which like numerals of reference designate corresponding parts in the several figures;

Figure 1 is a side elevation, partly in section, of that portion of a slotting machine containing the saw and gripping mechanism;

Figure 2 is a fragmentary plan view of the cam lever and some of its adjacent parts;

Figure 3 is a plan view of the mechanism substantially as shown in Figure 1;

Figure 4 is a detail plan view of a portion of the gripping mechanism;

Figure 5 is a fragn'iontary elevation of he parts substantially as shown in Figure 4; and

Figure 6 is an enlarged sectional viev; thereof, taken generally upon line (5-6 of Figure 4.

In the drawings 10 designates the bed of a slotting machine upon which is secured the body 11, having an inclined front face 12 upon the upperend of which is a plate 18. ()n this plate is a block 14 that is adjustable relatively by the screw 15 that passes through a lug 16 on the plate and is threaded into said block being secured in its several aositions by the bolts 17. Fixed in the bloc: 14 is a shaft 18 upon which is movably mounted the saw frame 19', the pinion .20 and driving wheel 21,

Journaled in the saw frame 19 is a saw 11 o 2 h tl 2 1 are r a aving ieieon a saw u and a pinion 24, the teeth of which mesh into those I of the pinion 20.

The saw frame, saw arbor and means for rotating the latter from the. driving wheel 21 through the pinions and 24 constitute no part of my present invention.

' A cam lever 25 is hinged upon a pin 26 secured in a bracket 27 connected with the bed 10, and a rocking movement is imparted thereto by a, cam 28 fixed upon the shaft 29 and rotated by means, not shown, a cam roll 30 and a spring 31 that is secured to the lever and to a fixed pin 32.

Slidable in said cam lever 25 is a block 83 that is caused to travel'in a path parallel to the length of the lever by the screw 3 1 threaded through said block and rotatably mounted in said lever, being held against endwise movement in one direction by a collar 35 and in the opposite direction by the nuts 36, a hand wheel 87 providing convenient means for manualrotation thereof.

Operatively uniting the cam lever 25 and the saw frame 19 is a connecting rod 38 that is hingedby the wrist pin 89 to the block 33, and passes through a slot 40 in the cam lever and a pin 41 journaled in the saw frame. A nut 42 threaded on this rod abuts against one face of the pin 41 and a hand knob 43 also threaded thereon abuts against the opposite face of the pin 41.

By removal of the hand knob 43 from the connecting rod the saw frame 19 can be swung upon its pivot mounting to its open and inoperative position, designated by the broken lines 44 in Figure 1. As the pin 41 is loosely mounted in the saw frame, it can be readily removed therefrom, a knurled portion 45 being provided to insure a positive grip thereon.

As the cam lever 25 is actuated through the mechanism above described, a rocking movement is imparted to the saw frame 19, the length and position of the arc of travel being variable through the adjustment of the block 33 in the cam lever 25. This is accomplished during the operation of the machine by reason of the manipulation of the hand wheel 37. i

The nut 42 and hand knob 43 threaded upon the connecting rod 38 also provide means for determining the position of the saw frame 19 relatively to the adjacent parts.

The saw frame 19 after being moved downwardly, at which time the cut is made in the head of the blank, is returned to its up position by the spring 68 which surrounds a loosely mounted pin 69 having a head '70 on its upper end. The spring abuts at one end against the head 70 and at the other end against the body 11. This spring also has a tendency to resist the downward movement of the saw frame through the connecting rod 38 and thereby insures a steady movement of the saw.

Mounted so as to swing upon a pin 46 fixed in the body 11 is a grip lever 47, having adjustably secured thereon a clamp dial 4:8, by a screw 49 or similar means' The washer 52 secured to the top of the pin 46 by a screw 53 or the like, prevents axial movement of the grip lever 47 upon the said pin. The underside of the dial is provided with a cylindrical boss 50, which projects into a recess 51 in the grip lever at? so as to assist in holding said clamp dial against lateral movement. 'This is not entirely essential, but assists however in relieving any strain there may be upon the screw 49.

Journaled, with its axis substantially parallel with that of the pin 48, is a dial shaft 54; which is intermittently rotated by means, not shown, but of any conventional form. Fixed on this dial shaft 54 is a carrying dial 55 having a plurality of notches 56 in the periphery thereof. One of these notches at each rest position of the dial registers with the opening 57 between the chute plates 59 that lead from a hopper (not shown) or other source of succession of blanks. Also when in such position a blank, designated 60, is held in one of the notches against the face of the clamp dial 18, substantially as shown in Figure the blanks being dropped into the notch in the carrying dial opposite the open space 57 and conveyed by it to the gripping position as shown in Figure 4, any suitable guard being provided to hold the blank in the notch during this movement.

A rocking motion is imparted to the grip lever +t7 in timed relation to the movement of the carrying dial through a rock lever 58 which is pivotally mounted upon astud 61 fixed in the body 11, having a cam roll 62 at its lower end which rides against the face of a cam 63 fixed on the shaft 29, a screw 64 being threaded through the upper end of this lever and impinging against the grip lever 47 substantially as shown in Figure 3.

As the cam 68 rotates, the lever 58 is rocked upon its pivot mounting, imparts alateral movement to the grip lever 4-7 and moves the clamp dial is again-st the blank and holds it against movement in the carrying dial while the saw 23 cuts a slot in the end thereof, all of the parts being operated in timed relation to accomplish this result.

Lateral adjustment of the saw 23 is obtained by means of the screw 65 which passes through a lug connected with the bed 11, and is threaded into the plate 13 which is secured in its several positions by bolts 17. All slack or wear of the parts that would permit axial movement of the saw 23 is prevented by means of a screw 66 that is threaded through the saw frame 19, and rides against the face of a lug (37 on block 14;.

Minor changes and alterations may be made within my invention, aside from those herein 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. hat I claim as new and desire to secure by Letters Patent, is:

1. In a device of the character described; a body member; a block adjustably mounted thereon; a saw frame pivotally mounted on the block; a driving shaft; :1 saw connected with the saw frame; means for actuating the saw frame from the driving shaft irrespective of the relative position of theblock on the body member and whereby the saw is drawn toward the blank; and a compression spring between the saw frame and body member at a point between the saw and where power is applied to the saw frame from the shaft that resists the movement of the saw frame when actuated by such power. In a device of the character described; a body member; a block adjustably mounted thereon; a saw frame pivotally mounted on the block; a. driving shaft; a saw connected with the saw frame means for actuating the saw frame from the driving shaft irrespective of the relative position of the block on the body member and whereby the saw is drawn toward the blank; and a compression spring between the saw frame and body member at a point between the saw and where power is applied to the saw frame from the shaft that resists the movement of the saw frame when actuated by such power; and means for varying the length and position of the stroke of the saw, operative while the saw and frame are in motion. 3. In a device of the character described; a frame; a pivotally mounted saw frame; a driving shaft; a lever pivotally connected at one end to the frame and s'uppprted adjacent to the other end by spring means; a cam connected with a shaft for imparting movement to the lever; a block mounted in the cam lever between its pivot mounting and the shaft; a member held against rotation in the cam 16v and threaded 113 6 the block; a haeawhen or slidab-ly the like for rotating said member that projects outwardly from the lever in front of the pivot mounting thereof and accessible for manipulation during the movement of the lever; a connecting rod between the block and saw frame; a hand wheel or the like threaded on said rod for varying the point of contact therewith and the saw frame; variable during the movement of the saw frame; and a saw mounted in the saw frame between its pivot mounting and the point of the pivotal connection of the connecting rod.

4;. In a device of the character described; a frame; a pivotally mounted saw frame; a driving shaft; a lever pivotally connected at one end to the frame and supported adjacent to the other end by spring means; a cam connected with the shaft for imparting movement to the lever; a block slidably mounted in the cam lever between the pivot mounting and the shaft; a member held against rotation in the cam lever and threaded into the block; a hand wheel or the like for rotating the same proj ecting outwardly from the lever in front of the pivot mounting thereof and accessible for manipulation during the movement of the lever; a connecting rod between the block and saw frame; a hand wheel or the like threaded on said 10d for varying the point of contact there with and the saw frame, variable during the movement of the saw frame; a saw mounted in the saw frame between its pivot mounting and the pivotal connection of the connecting rod; and a yielding member between the frame and saw frame between the saw and the juncture point of the connecting rod with the saw frame.

5. In a device of the character described, a carrier dial; a rock lever; a gripping member connected therewith; a driving shaft; a cam thereon; the said rock lever being actuated by the cam and having a part thereon in contact with said gripping member whereby said gripping member will move toward said carrier dial in timed relation therewith and positively grip a blank therebetween with an unyielding pressure.

6. In a device of the character described; a carrier dial; a gripping member for holding a blank in the carrier dial; a shaft;

means independent of the carrier dial be tween the gripping member and driving shaft for actuating the gripping member in timed relation with the movement of the carrier dial for positively gripping a blank therebetween with an unyielding pressure.

7. In a device of the character described; a saw frame; means for imparting a rock ing movement to the saw frame comprising in part a connection member; and means for pivotally and adjustably securing the connection member to the saw frame, comprising a pin pivotally mounted in the saw frame and through which the connection member projects at substantially a right angle to the axis of the pin, a nut on the connection member upon one side of the pin and a hand knob on the connection member upon the opposite side of the pin, both the nut and hand knob co-operating with the pin to prevent movement of the connection member relatively to the pin.

8. In a device of the character described; a carrier dial; a rock lever; a gripping member connected therewith; a second rock lever pivotally mounted upon a fixed part; means for actuating said second rock lever; and a member connected with said second rock lever havingcontact with the first of said rock levers whereby the movement of said second rock lever is transmitted to said gripping member through said first rock lever and a blank held between said carrier dial and gripping member with a positive unyielding pressure.

9. In a device of the character described;

a saw frame; yielding means for moving the saw frame in one direction; a driving shaft; a cam upon the shaft; a pivotally mounted cam lever actuated in one direction by the cam, yielding means for moving the cam lever in the opposite direction; a block slidably mounted in the cam lever between its pivot mounting and the cam; and a connection between the block and saw frame, whereby motion is imparted to the saw frame in one direction from the cam both the saw frame and cam lever being movable in the same direction by the yielding means.

In testimony whereof, I have hereunto affixed my signature.

RICHARD LESTER IVILGOX.

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