US1489984A - Wire measuring and cutting machine - Google Patents

Description

pni 8 ,1924a ,489,984.

' W. F, DATISMAN ET AL WIRE MEASURING AND CUTTING MACHINE Amin s 1924'o W. F. DATISMAN ET AL WIRE MEASURING AND CUTTING MACHINE Filed Nov. 9, 1922 4 Sheets-Sheet 2 WVG/hem W. F. .DATISMAN ET AL WIRE MEASURING AND CUTTING MACHINE l4 sheetssheet Filed NOV. 9, 1922 Apri@ s, 1924. 2,489,984

W. F. DATISMAN -ET AL WIRE MEASURING AND CUTTINGv MACHINE Filed Nov. Q 1922 4 www-sheet 4 W jai/Swan Patented Apr. 55, 1924.

Uitl@ STATES WILLIAMF. DATISMAN .AND PETER M. HEINZ, OF DUBUQUE, OWA.

WIRE MEASURNG AND CUTTING MACHINE.

Application led November 9, 1922.

T all whom it may concern.'

Be it known that we, 1V ILLIAM F. DATIS- MAN and PETER M. HEINZ, citizens of the United States, residing at Dubuque, in the county of Dubuque and State of Iowa, have invented certain new and useful improve-A ments in Vire Measuring and Cutting Machines; and we do declare the followingto be a full, clear, and exact description of the 1o invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Our invention relates to improvements in machines for cutting wire into predetermined lengths, one of the principal objects being to provide a machine of this character which may be readily adapted for cutting the wire into a wide variety of lengths.

A further object is to provide a novel form of receiver for the cut lengths of Wire, provided with automatic dumping means for` discharging them at spaced intervals.

An automatic intermittently operating clutch is provided for operating the wire cutter at predetermined intervals and a still further aim of the invention is to provide a unique arrangement of parts whereby this clutch and in fact all parts of the machine will be properly operated.

With the foregoing in view, the invention resides in the novel subject matter hereinafter described and claimed, the description being supplemented by the accompanying drawings.

Figures 1 and 2 are side elevations looking against opposite sides of the machine.

Figure 3 is a top plan view.

Figure 4 is a longitudinal sectional view as indicated by line 4-4 of Fig. 3.

Figure 5 is a detail vertical section as indicated by line 5-5 of Fig. 2.

4Figure 6 is a duplicate of Fig. 5 with the exception that it illustrates a different position of parts.

In the drawings above briefly described, the numeral 1 designates a main frame which may be of any desirable construction, it being here shown as provided with supporting legs 2. Suitably mounted upon the well known form, including a plunger 4 operable by means of an eccentric or the like 5 on a transverse shaft 6. This shaft is normally idle but by means of an automatic clutch yet to be described, is brought into frame 1, is a wire cutter 3 of any desired or- Serial No. 599,945.

play at the proper time to operate the wire cutter 3.

The numeral 7 designates a stepped drive pulley which is loose upon the shaft 6 and carries a main drive pinion 8. One end of this pulley is provided with a plurality of teeth ,or projectingpins 9 which are adapted to co-operate with a normally retracted pin 10 carried by a cylindrical head 11 which is secured upon the shaft 6 (see Fig. 3). In the present showing, the pin 10 passes across a circumferential groove 12 inthe head 11 and is provided with a notch having a beveled side wall 13. This beveled side wall of the notch co-acts with the beveled upper end 14 of a vertical lever 15 which is fulcrumed to the frame 1 as indicated at 16. A coil spring 17 is connected at one end to lever 15y and is anchored to the frame 1 at its other end, whereby to normally draw the lever toward the bottom of the groove 12 thereby holding the pin 10 retracted against the action of its .comparatively light projecting spring 18 which is confined in the head 11. An appropriate contractible brake band 19 surrounds the drum 11 to normally hold this drum and the shaft 6 against turning and to bring them to a standstill as soon as the pin 10 is withdrawn from engagement with the teeth 9. We have here shown the brake 19 carried by the upper end of the standard 2O which rises from the frame 1 and forms one bearing for the shaft 6.

At 21, we have shown a horizontal bar associated with the lever 15 for releasing this lever from engagement with the notch 13 of the pin l0, thereby controlling the clutch connection between the pulley 7 and the shaft 6. A quick-detachable connection is provided-between the bar 21 and the lever 152 and preferably consists of a notch 22 in the lower edge of the bar 21 receiving the leg 23 on the lever 15, so that co-acting thrust shoulders are provided between said bar and lever. At the proper time, the bar is longitudinally moved with the result that the connection 22--23 moves the lever 15 against the tension of its spring 17, thereby permitting the clutch to come into play to drive the shaft 6 and operate the cutter 3. As soon as this releasing of the lever 15 has vbeen eiected, the connection 22-23 is severed under the iniiuence of a cam slot 24 iny the bar 21, co-acting with the pin 25 carried CII by the standard 20, as shown most clearly in Figs. 1 and 4. By the time this disengagement of the bar 21 and the lever 15 has taken place, the moving means for said bar has ceased to function and this bar is returned to its initial position by a suitable coil spring 26, when the proper time arrives.

In the present form of our machine, we

provide a one-way sliding connection 27 between the bar 21 and an upright operating lever 28 for said bar, this lever being fulcrumed at 29 on the frame 1 and having its lower end disposed in the path of the cam 30 on the transverse shaft 31. We also pivot a link 32 to the lower end portion of the lever 28 as indicated at 33 and provide a one-way sliding connection 34 between the other end of said link and the bar 21, a coil spring 35 being connected with said link and bar to normally retain them in the position shown in Fig. 4. If the cam shaft 31 rotates in the direction of the arrow a of Fig. 4, t-he sliding connection 27 comes into play and the link 32 pulls upon the bar 21 when the lever 28 is rocked by the cam 30, then pulling upon and releasing the lever 15. If the cam shaft 31 travels in the direction of the arrow of Fig. 4, the sliding connection 34 comes into play and the lever 28 acts directly upon the bar 21 to move the latter and release the above named lever 15. It will thus be seen that regardless ofthe direction in which the machine may be driven, the clutch will be brought into play at the desired interval.

We have shown the cam shaft 31 provided with a spur gear 36 meshing with a similar gear 37 on an idle shaft 38, one end of this idle shaft being provided with a pinion 39 meshing with a gear 40, this gear being driven by a pinion 41. This pinion 41 is carried by a transverse shaft 42 having a gear 43 which meshes with the pinion 8.

The gear is detachably mounted at 44 upon a gear carrying plate 45, which may be pivoted upon the axis of the pinion 41, a bolt 46 and curved slot 47 being provided in order that the carrying plate may be normally held against movement. By this arrangement if .it is desired to change the intervals at which the cutter 3 operates, the pinion 41 and gears 40 and 39 may be detaclied and others substituted of a different size. The slots 44a in plate 45 permit a pair of intermeslied gears (not shown) to be substituted for gear 40 if desired, which would reverse the movement of shafts 38 and 31.

At 50, a track is shown for a feed carriage 51 having a wire gripper 52 vco-operable with a stationary gripper 53. A pitman 54 is connected to the carriage 51 at one end, and at its other end is formed with spaced openings 55, any one of which may receive a wrist pin 56 on an adjustable throw crank. By providing the adjustment -56 for the pitman 54, the carriage 51 may be moved close to thek gripper 53 if small gage wire is being used, to prevent buckling. However, if much stiffer wire is used and the stroke of the carriage 51 is to be rather long, the carriage may be adjusted away from the gripper 53.

In providing the adjustable throw crank, we preferably make use of a crank arm 57 extending diametrically across the outer side of the fly wheel 58 on the transverse shaft 59, this shaft being provided with a gear 60 meshing with the gear 43 of the shaft 42. A carriage 61 is adjustable along the crank arm 57 preferably by means of a screw 62, said carriage 61 carrying the wrist pin 56. It will thus be seen that by adjusting the screw 62, the stroke of the feed carriage 51 may be accurately adjusted.

Attention may here be directed to the fact that the pulley 7 constitutes a common driving member both for the wire feeding means and the wire cutting means and while said feeding means will stroke at regular intervals, the lengths of the stroke may be varied to control the amount of wire fed through the cutter' 3. Also, by substituting a gear and pinion of a different size for the gear 39 and the pinion 41, the intervals at which the cutter 3 will operate, may readily be controlled and it will thus be seen that the cutter 3 does not necessarily operate upon each stroke of the feed carriage 51, thus the machine may be set for cutting the wire to any desired length.

In line with the wire being fed, we provide a receiving tube 63 which is provided in one side with a longitudinal discharge slot 64, normally positioned substantially as seen in Fig. 5, said tube being rotatable in an outer guard tube 632l having a. slot 642L in its lower side. One end of the tube 63 is provided with a gear 65 meshing with a gear segment 66 on the end of a. longitudinal lever 67, this lever being suitably fulcrumed upon the frame of the machine as indicated at 68 and being connected by a vertical link or arm 69 to the vertically movable plunger of the wire cutter 3. Thus, as the tube 63 is rotatably mounted, stroking of the plunger of the cutter 3 will rock said tube to the position of Fig. 6, after each length of wire is cut7 thereby moving theslot .64 downwardly into register with slot 64a and discharging the cut length of wire.

The numerals 70 designate a pair of vertical bars suitably secured to one side of the frame 1 and bent substantially upon themselves at their upper portions to provide bearings 71 which non-rotatably hold the tube 63a, the free ends of said bars being eX- tended downwardly from the bearings 71 to provide guide arms 72 parallel with the upright portions of thel bars 70 for guiding the discharged lengths of Wire Onto hookshaped rests 73 which are formed by upwardly bending the lower ends of said bars. These rests are spaced apart so that a number of the cut lengths of wire held thereby, may easily be grasped in one hand and removed.

ln connection with the features of construction above set forth, we prefer to provide suitable wire guiding and straightening rollers 74 of any well known or desired type.

A machine of the character set forth is well adapted for cutting wire of different gages into any desired lengths and as excellent results have been obtained from the details disclosed, they lare preferably followed. However, within the scope of the invention as claimed, numerous minor changes may be made.

I claim:

l. A machine of the class described comprising intermittently operating wire cutting means, means for intermittently feeding wire to said cutting means, a receiving tube for the cut lengths of wire, the open inner end of said tube being in substantially axial alinement with the path on which the wire is fed and being provided in one side with a slot through which the cut lengths of wire are discharged, and means for rotating said tube atpredetermined intervals to dispose said slot in discharging position.

2. A machine of the class described comprising means for intermittently advancing a wire along a straight path, a tube into which predetermined lengths of the wire are successively fed, said tube having a longitudinal slot in one side, means for cutting off the lengths of wire after feeding to said tube, a pinion on said tube, a. gear segment meshing with said pinion, and means connecting said segment operatively with said cutting means for turning said tube to discharge the cut lengths of wire through its slot.

3. A machine of the class described comprising means for intermittently advancing a wire along a straight path, a tube into which predetermined lengths of the wire are successively fed, said tube having a longitudinal slot in one side, means for cutting off the lengths of wire after feeding to said tube, a pinion on said tube, a lever connected with and operated by said cutting means, and a gear segment on said lever meshing with said pinion for turning said tube to discharge the cut lengths of wire through its slot.

4. A machine of the class described comprising means for intermittently advancing a wire along a straight path, a tube into which predetermined lengths of the wire are successively fed, said tube having a longitudinal slot in one side, means for cutting off the lengths of wire after feeding to said tube, a non-rotatable slotted tube receiving the rst named tube, rigidly supported upstanding bars having bearings at their upper ends holding said non-rotatable tube and having upwardly facing rests at their lower ends, and means for turning said first named tube to discharge the wire through its slot and the slot of said non-rotatable tube onto said rests.

5. A structure as specified in claim l; together with a slotted guard tube around said first named tube to normally prevent springing of the wire, from the slot of said first named tube, the two slots coming into register when the iirst named tube is turned.

6. A machine of the class described comprising means for intermittently advancing a wire along a straight path, a pair of tubes one within the other into which predetermined lengths of the wire are fed and then cut olf, said tubes having longitudinal slots normally out of register, and means for relatively turning said tubes to register their slots for discharging each cut length of wire.

7. A wire cutting machine comprising intermittently operating wire cutting means, intermittently operating wire feeding means, and means synchronizing the movements of `said cutting and feeding means including means whereby the intervals at which said cutting means operates may be shortened or lengthened independent of said feeding means.

8. A wire cutting machine comprising intermittently operating wire cutting means, intermittently operating wire feeding means, a train of gearing for synchronizing said feeding and cutting means, including a gear in mesh with two pinions, said gear and one of said pinions being detachable to permit substitution of a gear and pinion of another size, a carrier for said gear swingable about the axis of said one pinion, and mea-ns for holding said carrier normally against movement.

9. A wire cutting machine comprising a clutch-driven, cutter, a clutch-controlling member movable in one direction for throwing the cutter clutch into operation, a rotary shaft for effecting movement of said controlling member, driving means for the cutter clutch and said shaft including a common driving member, and operating connections between said shaft and said clutchcontrolling member for moving the latter in said one direction regardless of the direction in which said driving member and said shaft rotate.

l0. A wire cutting machine comprising a clutch-driven cutter, a clutch-controlling member movable in one direction for throwing the cutter clutch into operation, a rotary shaft for eecting movement of said controlling member, driving means for the cutter clutch and said shaft including a common driving member, a, level slidably connected et one end with said clutch Controlling membei1 and ulerumed between its ends on a stationary support, means on said shaft foi' Co-eotion With the other end of said lever to roel; the latter, and a link oonneeting said other end of said lever with Said Clutch controlling member, one end of said link having a sliding connection with 10 the associated part.

In testimony whereof we have hereunto aiixed our signatures.

IWILLIAM F. DATISMAN. PETER M. HEINZ.

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