US1084110A - Wire-drawing appliance. - Google Patents

Description

J. H. BEECH.

WIRE DRAWING APPLIANCE.

APPLICATION FILED FEB. 15, 1912.

Patented Jan. 13, 1914.

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WIRE DRAWING APPLIANCE. APPLICATION FILED r1212 15, 1912.

1,084,110 Patented Jan. 13, 1914.

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Patented Jan. 13, 1914.

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UNITED STATES PATENT OFFICE.

JUAN H. REECE, OF JOLIET, ILLINOIS, ASSIGNOR 'IO HUMPI-IREY & SONS, OF JULIET, ILLINOIS, A COIEARTNERSHIP.

WIRE-DRAWING APPLIANCE.

Specification of Letters Patent.

Patented J an. 13, 1914.

Application filed February 15, 1912. Serial No. 677,759.

To all whom it may concern: Be it known that I, JUAN H. Enron, a c 1t1- zen of the United States, residing at Joliet, in the county of Will and State of Illino1s, have invented certain new and useful Improvements in lVire-Drawing Appliances, of which the following is a specification.

The present invention relates more particularly to the arrangement and construction of the stand carrying the wire die, and to certain safety appliances which control the movements of the wire-drawing block.

The principal object of the invention is to locate a safety appliance at the front of the bench of the appliance, which will be connected to and operate the mechanism wh ch governs the rotation of the wire-drawing block, whereby, when said safety appliance is operated, the rotation of said block will cease.

Another object of the invention is to so construct the die-stand that when the tension which is created by the operation of drawing the wire is relieved from said stand, means will act to operate the governing mechanism and stop the rotation of the block.

A further ob'ect of the invention is to provide means or looking the die-carrying port-ion of the die stand in position while the wire is being threaded therethrough, and to so arrange the connection between the governing mechanism and the locking means that the locking means for holding said stand in position must be withdrawn from operative position before the drum can be started, thus insuring that the stand is held in position after the drawing operation commences, solely by the tension created by the drawing of the wire.

The invention further consists in the features of construction and combination of parts hereinafter described and claimed.

In the drawings, Figure 1 is an elevation showing the die-stand of the present invention in operative position with respect to a wire drawing block or drum; and showing a portion of the stand upon which the various mechanisms are mounted; Fig. 2 is a side elevation of the die-stand; Fig. 3, a front view of the stand; Fig. 4, a plan view of the stand; Fig. 5, a plan view showing the housing carrying the die removed; and showing the support for the die-stand swung into position to carry the die out of drawing position; Fig. 6 is a View similar to Fig. 2, showing the movable portion of the stand swung into the position shown in Fig. 5; Fig. 7 is a view similar to Fig. 2, taken from the opposite side of the stand; Fig. 8 is a section on line 8-8 of Fig. 7 looking in the direction of the arrow; and Fig. 9 is a detail, partly in section, of the housing containing the die, and showing the connection of said housing to its support.

111 the art to which the present invention relates, it is customary to construct the wiredrawing blocks or drums so that they are tripped by suitable mechanism and thrown into clutch with a power-driven element, whereby they are rotated. Various means are employed for effecting this tripping operation, a very good method being compressed air acting on suitably arranged pistons which will effect the raising and lowering of the block to accomplish the clutching operation. The present invention is well adapted to a mechanism employing compressed air for this purpose, although it is not limited to a use in conjunction with such mechanism. It is necessary, in devices of this kind, to employ certain safetyappliances to protect the operator of the machine from being drawn into the block; that is, the hands or clothing of the operator sometimes become entangled in the wire, with the result that they are carried along with it and are thrown violently against the swiftly revolving block, resulting, in nearly every instance, in the severing of a hand or arm.

One of the main features of the present invention is to provide a safety appliance to prevent accidents of this kind.

Another source of danger arising from the use of these wire-drawing appliances arises from the wire breaking and the free end of the wire being swung around swiftly by the action of the drawing block, resulting in injury to the workman either at that bench or at the adjacent benches. This is also true where the workman is not paying proper attention to the machine and allows the end of the wire to pull through the die without stopping the machine. This would obviously result in the whipping of the free end of the wire through the air, resulting many times in serious injury to the operator. The present invention is so arranged that the breaking of the wire or the passing of the,

end of the wire through the die will relieve the die-stand of the tension placed thereon by the wire-drawing operation, allowing certain mechanism to act and throw the means governing the rotation of the block into position to stop such rotation.

Referring to the drawings, and particularly to Fig. 1, a bench 10 is shown, which can be of any suitable size and construction, upon the top of which is mounted a wiredrawing block or drum 11 of any suitable type. Means for revolving the drum are shown in Fig. 1, which means are fully shown and described in Letters Patent No. 961319, granted to H. B. Humphrey June 14c, 1910. Said means are therefore not claimed as a portion of the present invention, but are simply shown as illustrating one method of actuating the block; and the invention is understood not to be limited in any way to use with the mechanism for operating the block shown. Secured to one of the sides of the bench is a die-stand 12, the construction and arrangement of which constitutes the gist of the present invention. This die-stand comprises a fined portion 13 and a movable portion let. The fixed portion in the form shown consists of a platelike framework 15, adapted to be secured by suitable fastening means to the bench. Said plate is provided with suitable portions 16, which provide a mounting for a stem 17, said stem being held against rotative movement in said bearings, and surrounding said stem is a spring 18, the purpose of which will be more fully hereinafter explained. The stem 17 provides an axial center for a movable plate 19, as is best shown in Fig. 5.

The plate 19 has attached thereto, by a suitable fastening member 20, best shown in Fig. 9, a casting 21, which is provided with ears 22, between which is mounted a casing 23 adapted to carry a suitable die, not shown. A stem 24 is mounted in the ears 22, and said casing moves up and down about said stein as a pivotal center. The casing is normally held upward and out of drawing position through the medium of a coil spring 25 mounted within a sleeve 26, this latter construction being best shown in Fig. 9. The plate 19, as will be seen from a study of Fig. 7, is formed with a downwardly depending portion 27, which serves to give a firm mounting and support to said plate upon the stem 17. The coil spring 18 has one end bearing against said depending portion, as will be clearly seen in Fig. 3, and hence exerts its strength to swing the plate 19 and the parts carried thereby about the stem 17, holding them normally in the position shown in Fig. 5. It will be readily seen that such parts as are affected by the movements of the plate 19 may be said to constitute the movable portion of the die-stand.

Mounted within suitable guide members,

and lying just below the plate 19, is a slidable member 28, terminating at one end in a head 29, and at the opposite end in gripper jaws 30 said head, member and jaws constituting a safety appliance, which, however, is not claimed as a portion of the present invention. The principle of operation of this safety appliance briefly is as follows: if the operator is drawn against the head 29, the slidable member 28 will be forced inward, closing the jaws 30, which will act to sever the wire, thus preventing its further progress, and eliminating the danger of the operator being drawn into the block. This appliance, however, is only operative in case the operator should be drawn inward against the front of the stand, and furthermore does not actuate in any way to stop the rotation of the drawing block.

Referring particularly to Fig. 8, a rock shaft 31 is shown, which extends to the out side of the die-block and terminates in a handle or olfset portion 32. By referring to Fig. at, it will be seen that this handle eX- tends beyond the diestand and lies to the side thereof. The rock shaft 31 is mounted in suitable bearings 33 attached to the fixed portion of the die-stand, said shaft carrying an arm 34, which is adapted to be connected in any suitable manner to the mechanism which governs the rotation of the dieblock. Said mechanism, as stated, is shown in Letters Patent No. 961,.t49, granted to H. B. Humphrey June 1 1, 1910, and is not claimed as a portion of the present invention. It may be stated, however, that the arm 34; is connected to a link 34, which in turn is connected to a valve 34 which controls the passage of pressure to a motor 34, which operates a yoke 34 to control the rotation of the block, as is fully described in the above mentioned Letters Patent. At the opposite end of the shaft 31 from that upon which the handle 32 is formed is a lug 35, which, as will be clearly seen by referring to Fig. 2, underlies a pivoted latch or detent 36, which latch or detent is formed with a notch 37 adapted to engage with a pin or bolt 38 carried by the plate 19. It may be stated at this time that both the latch and bolt are actuated entirely by gravity, and that no springs are utilized to effect their operation. As is shown by dotted lines in Fig. 2, the bolt 38 is provided with a head 39, and is prevented from displacement by means of a suitably threaded stem 40, although this particular construction of bolt is not absolutely essential to the carrying out of the present invention. The rock shaft is further provided with a lug 11, best shown in Fig. 7, which is adapted to be engaged by a lug or boss 42 on the downwardly depend ing port-ion 27.

The operation of the mechanism briefly is as follows: hen wire is to be threaded through the die, the movable portion of the die-stand is swung into the position shown in Fig. 2, which is the proper position for it to assume in order to perform the wiredrawing operation. The rock shaft 31 is then swung to position the lug 35 in proper place to raise and hold the latch. in position where it will engage with the bolt 38, this position being shown by dotted lines in Fig. 2. After the stand has been thus locked in position, the wire can be threaded into the die and the device is ready for operation, but before the drum 11 can start revolving to draw the wire, the rock shaft 31 must be swung so as to place the latch 36 and the lug 35 into the position shown in full lines in Fig. 2. This removes the locking means, namely, the latch 36, which had held the movable portion of the die-stand in drawing position; and thereafter this movable portion is held in drawing position solely through the instrumentality of the pressure incident to the wire passing therethrough. YVhen the rock shaft 31 is moved to release the latch 36 from engaging or locking position, the lug 4:1 is thrown into the position shown in Fig. 7, and the handle 32 is thrown into the position shown in Fig. 41, where it is lying away from the face of the bench. When the parts are in this position, as heretofore stated, the block is revolving and wire is being drawn. If an operator should lean over the side of the die-stand to feel of the wire passing out from the die, to see whether it was burred or not, and if he should become entangled in the drawn wire, the tendency would be to throw him up against the side of the die-stand and against the handle 32. This would swing said handle to the position shown in Fig. 5 and operate the arm 34; to actuate the controlling means for the block to stop the rotation of said block and the feed of the wire, which necessarily would act to prevent the operator from being drawn against the block and thus sustain injury. Under these conditions the rock shaft 31 moves entirely independ ent of any movement of the die-stand, and, so far as actuation of this safety appliance is concerned, the position or arrangement of the die-stand is immaterial. There are two methods, however, of actuating the rock shaft to stop the rotation of the drum. The first has just been described. The second is as follows: As heretofore stated, the movable portion of the stand is held in drawing position by the tension of the wire passing therethrough. If this tension is relieved, either by the breaking of the wire or the passing of the end of the wire through the die, the spring 18 will instantly act to swing the movable portion of the die-stand into the position shown in Fig. 5, and such movement will cause the lug 42 to strike the lug 41, rocking the shaft 31 and stopping the rotation of the block and the feed of the Wire, thus eliminating the danger which arises from the whipping through the air of the loose or free end of the wire.

By the arrangement of locking mechanism for the movable portion of the diestand, which has just been described, it is an impossibility to start the wire-drawing operation without first setting all these safety appliances in operative position.

In addition to the dangers enumerated when the wire breaks, a further danger may result from the wire flying and becoming entangled in the block next adjacent.

I claim:

1. In a wire drawing appliance, the combination of a bench, a wire drawing block mounted thereon, means for rotating said block, a die stand comprising a fixed section detachably secured to said bench and a movable section mounted on said fixed section, means for actuating said movable section after the strain incident to the passing of the wire through the die has been relieved, a shiftable member carried by the fixed section and arranged in the path of n'lovement of the movable section and shifted by contact therewith, means for controlling the rotation of said block, and a connection between the shiftable member and rotating means whereby the shifting of said 1nember stops the rotation of said block, substantially as described.

2. In a wire drawing appliance, the combination of a wire drawing block, means for rotating said block, a movable die carrier, means for moving said carrier after the strain incident to the passing of wire through the die has been relieved, means for controlling the rotation of said block, a shiftable member movable independent of the die carrier and having its extremity eX- tending to the outside of said die carrier and forming a safety member, a connection between said shiftable member and said rotating means, and said shiftable member be ing located in the path of travel of the die carrier and actuated by contact therewith, substantially as described.

3. In a wire drawing appliance, the com bination of a wire drawing block, means for rotating said block, means actuated by a medium under pressure for controlling the rotation of said block, means for governing the flow of said medium, a die stand, a shift able member extending beyond the die stand and constituting a safety device, and a connection between said shiftable member and governing means, substantially as descrioed.

4:. In a wire drawing appliance, tie coinbination of a wire drawing block, means for governing the rotation of said block, a die stand comprising a fixed section and a movable section, a movable member supported by the fixed section and having its extrenr ity extending to the outside of the die stand and providing a safety member, a connection between said movable member and governing means, and said movable member being located in the path of travel of the movable section and moved by engagement with said movable member into position to stop the rotation of said block, substantially as described.

In a wire t ra-wing appliance, the combination of a wire drawing block, means for rotating said block, means for governing the rotation of said block, a die stand comprising a fixed section and a movable section, a shiftable member carried by said fixed sec tion, a connection between said shiftable member and governing means, said movable section being held out of normal position by the tension of the wire passing through the die, said shiftable member having a portion thereof extending to the outside of the die stand and forming a safety appliance, said member being movable independent of the movable section of the die stand and arranged in the path of travel of said movable section, whereby it is actuated by engagement with the movable section, substantially as described.

6. In a wire drawing appliance, the combination of a bench, a wire drawing block mounted thereon, means for rotating said block, means for controlling said rotation, a die stand comprising a fixed section detachably secured to said bench and a movable section mounted in the fixed section, a rock shaft carried by the fixed section, and a connection between said rock shaft and controlling means, said movable section being held in drawing position by the strain incident to the wire drawing operation, said rock shaft being actuated by engagement with said movable section when said section is returned to normal position to stop the rotation of the drum, substantially as described.

7. In a wire drawing appliance, the combination of a wire drawing block, means for rotating said block, means for controlling said. rotation, a die stand comprising a fixed section and a movable section, a rock shaft carried by the fixed section, and a. connection between said rock shaft and controlling means, said movable section being held in drawn position by the strain incident to the wire drawing operation, said rock shaft being actuated by said movable section, when said section is returned to normal position, whereby the rotation of the drum is arrested, the end of said shaft extending to the out side of said stand, and said shaft being movable irrespective to the position of said movable section, substantially as described.

8. In a wire-drawing appliance, the combination of a wire-drawing block, means for rotating said block, means for governing said rotation, a die-stand comprising a fixed section and a movable section, a shiftable member, a connection between the shift-able member and governing means, a. latch for holding the movable section in drawing po sition, a connection between said latch and shift-able member, whereby said latch is thrown out of locking position when said shiftable member is thrown into position to actuate the governing mechanism to rotate the block, and means for actuating said shiftable member when said movable section is thrown out of drawing position, to stop the rotation of said block, substantially as described.

9. In a wire-drawing appliance, the combination of a wire-drawing block, means for rotating said block, means for governing said rotation, a die-stand, a rock shaft carried by said stand and extending to the outside thereof, an offset on the extended portion of said rock shaft, and a connection between said rock shaft and governing means, substantially as described.

10. In a wire drawing appliance, the combination of a bench, a wire drawing bloclt thereon, means for rotating said block, means for governing said rotation, a die stand comprising a fixed section detachably secured to said bench, and a movable section mounted in the fixed section, a rock shaft carried by the fixed section and means for shifting said movable section out of drawing position when the movable section is relieved of the tension incident to the wire drawing operation, said rock shaft being actuated by contact with said movable section, when said section is thrown out of drawin position, whereby the governing means are moved and the rotation of the block arrested, substantially as described.

11. In a wire drawing appliance, the combination of a bench, a wire drawing block mounted thereon, means for rotating said block, means for governing the rotation of said block, a die stand comprising a fixed section detachably secured to said bench and a movable section mounted in said fixed section, a rock shaft carried by the fixed section, tension mechanism for shifting said movable section out of drawing position when the movable section is relieved of the tension incident to the wire drawing operation and a protuberance on the movable section adapted to engage and rock said shaft when said section is thrown out of drawing position, whereby the rotation of said block is stopped, substantially as described.

12. In a wire-drawing appliance, the combination of a wire-drawing bloc means for rotating said block, means for governing the rotation of said block, a die-stand comprising a fixed section and a movable section, a rock shaft latch mechanism controlled by said rock shaft, for holding the movable section in drawing position, said shaft when moved to position to start the block throwing the latch mechanism out of locking position, means for throwing said movable section out of drawing position when the tension is relieved from the wire being drawn, and means for actuating said rock shaft when said movable section is thrown out of drawing position, to stop the rotation of the drum, substantially as described.

13. In a wire-drawing appliance, the combination of a wire-drawing block, means for rotating said block, means for governing the rotation of said block, a die stand comprising a fixed section and a movable section, a rock shaft, latch mechanism controlled by said rock shaft, for holding the movable section in drawing position, said shaft when moved to position to start the block throwing said latch out of locking position, tension mechanism for throwing said movable section out of drawing position when the tension is relieved from the wire being drawn, and a protuberance on said movable section, adapted to engage said shaft when said section is thrown out of drawing position, to stop the rotation of the block, substantially as described.

14e. In a wire-drawing appliance, the combination of a wire-drawing block, means for rotating said block, means for governing said rotation, a die-stand comprising a fixed section and a movable section, a rock shaft, means for shifting said movable section out of drawing position when the movable section is relieved of the tension incident to the drawing operation, said rock shaft being actuated when said movable section is thrown out of drawing position, to move the governing means and stop the rotation of the block, and an offset on the end of said shaft, lying to the outside of the diestand and constituting a safety member, substantially as described.

15. In a wiredrawing appliance, the combination of a wire-drawing block, means for rotating said block, means for governing the rotation of said block, a die-stand comprising a fixed section and a movable section, a rock shaft, latch mechanism controlled by said rock shaft, for holding the movable section in drawing position, said shaft when moved to position to start the block throw ing the latch mechanism out of locking position, means for throwing said movable section out of drawing position when the tension is relieved from the wire being drawn, means for actuating said rock shaft when said movable section is thrown out of draw ing position, to stop the rotation of the drum, and an offset on the end of said shaft, lying to the outside of the die-stand and constituting a safety member, substantially as described.

16. In a wire-drawing appliance, the combination of a wire-drawing block, means for rotating said block, means for governing the rotation of said block, a die-stand comprising a fixed section and a movable section, a rock shaft, latch mechanism controlled by said rock shaft, for holding the movable section in drawing position, said shaft when moved to position to start the block throwing said latchout of locking position, ten sion mechanism for throwing said movable section out of drawing position when the tension is relieved from the wire being drawn, a protuberance on said movable section, adapted to engage said shaft when said section is thrown out of drawing position, to stop the rotation of the block, and an offset on the end of said shaft, lying to the outside of the die-stand and constituting a safety member, substantially as described.

JUAN H. REEGE.

Witnesses:

Lnwrs W'. CONNELL, "W. J. ROBINSON.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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