US1925845A - Wire straightening and cutting machine - Google Patents

Description

Sept. 5, 1933.

J. H. MOORE 1,925,845

WIRF STRAIGHTENING AND CUTTING MACHINE Filed May 31, 1930 5 Sheets-Sheet 1 INVENTUR. J05) 1700252.

Sept. 5, 1933. J. H. MOORE WIRE STRAIGHTENING AND CUTTING MACHINE Filed May 51, 1930 5 Sheets-Sheet 2 I N V EN TOR sa/y lfaafes.

A TTORNE Y.

spt. 5, 1933. H MOORE 1,925,845

WIRE STRAIGHTENING AND CUTTING MACHINE Filed May 31, 1930 3 Sheets-Sheet 3 11v TOR. Q 64 yaa' e Patented Sept. 5, 1933 uNirao stares WIRE STRAIGH'EENING AND CUTTING MACHINE John H. Moore, Detroit, Mich, assignor to Andrew A. Brien Application May 31, 1930. Serial No. 458,418 4 Claims. (01. 140-140) My invention relates to a new and useful improvement in a wire straightening and cutting machine. adapted for use in straightening wire so as to remove therefrom all bends and kinks, and also adapted upon passage of the wire therethrough to cut the same into pre-determined lengths. It is an object of the present invention to provide a machine of this class in which a quick operation may be effected and a heating of the wire reduced to a minimum.

Another object of the invention is the provision in a machine of this class of a cutting mechanism so constructed and operated that the delay of travel of the wire while the cutting operation is performed is reduced to a minimum.

Another object of the invention is the provision of a cutting mechanism having a control so operated that a minimum resistance is offered to the travel of the wire in order to operate the control.

Another object of the invention is the provision of a device of this class which will be simple in structure, economical of manufacture, speedy and efficient in operation, and durable and compact. v

Other objects will appear hereinafter.

The invention consists in the combination and arrangement of parts hereinafter described and claimed.

The invention will be best understood by a reference to accompanying drawings which form a part of this specification and which Fig. 1 is a side elevational view of the invention.

Fig. 2 is a top plan view of the invention.

Fig. 3 is a view taken on line 3--3 of Fig. 2.

Fig. 4 is a fragmentary end elevational view of the cutting mechanism.

Fig. 5 is a View taken on 5-5 of Fig. 2.

Fig.6 is a view taken on 6--6 of Fig. 5.

Fig. is a view taken on line '77 of Fig. 2.

Fig. 8 is a view taken on line 8-8 of Fig. 2.

The invention comprises a bed or base 17 supported by suitable standards 18 and 19. A sup port 20 serves as a rest foran electric motor 21, the drive shaft 22 of which is connected through the clutch connection 23 withthe shaft 24 on whichis fixedly mounted the bevel gear 25 meshing with the gear 26 which is mounted on the shaft 2'7. A gear 28 is also mounted on the shaft 2'7 and connected by the chain belt 29 to the gear 30 which is mounted on the shaft 31.

The shaft also carries a feed roller 42 which cooperateswith the feed wheel or roller 45 in which is formed the peripheral groove 44 for feeding the strand of wire 62. As shown in Fig. 2 and Fig. 3 an arm 59 is provided with. a bore 60 in which is positioned a bushing 61 having a bore formed therein of substantially the same diameter as the wire 62 which is fed therethrough.

Projecting upwardly from the bed 17 is a support 63 on which is mounted the bearing 64 in which is journaled the reduced portion 65 of the barrel 68 to provide a neck on the barrel in which is positioned the wire guiding bushing 66. This barrel is tubular and opens at its opposite ends through the openings 6'7 and 69. Extending radially of the barrel 68 are a number of straightening elements. These elements comprise the block '70. Positioned in an opening '75 formed in the block '70 is a roller '76 which is rotatably mounted on the shaft '77. A threaded stem '78 projects outwardly from one end of the block '70 and threads into the bushing '79 which is threaded into a bushing '79 mounted in a press fit in the barrel 68. The opposite ends of the barrel are wire engaging members each comprising a block which is radially slidable of the barrel 68. A passage 81 is formed in the block 80 and mounted in this passage are the wire engaging heads 81 and 82 formed with curvilinear wire engaging surfaces. A threaded stem 83 projects from the blocl: 80 and is threaded into the bushing 84 which is threaded into the bushing 84 mounted in a press fit in the barrel 68. An extension 85 is formed on the barrel to provide a pulley. A neck 86 projects outwardly from this pulley forming extension and is journaled in the bearing 8'7 whichis secured by the plates 88 and 89 and the bolts 90 to the standard or support 91 which projects upwardly from the bed 1'7. Extending outwardly from the standard 91 is a bracket having the spaced supports 92 and 93 on which are rotatably supported the wire feed wheels 94 and 95 each being provided with the peripheral groove 96. The wheel 95 is mounted on the shaft 9'7. These arms 92 and 98 are provided with the slots 103 in which engage the bushing 104 which serves as a bearing for the shaft 106 on which the feed wheel 94 is mounted. A spring 107 is mounted in each of the arms 92 and 93 and held in position by the plugs 108 pressed against the bushing 104 and serves to resist relative movement of the feed wheels 94 and 95 in one direction. Fixedly mounted on the shaft 106 is a pinion 109 meshing with the gear 110 which is fixedly mounted on the shaft 9'7. A friction wheel 111 is also fixedly mounted on the shaft 9'7.

A belt 112 extends around the pulley 113 which is fixedly mounted on the shaft 24. The shaft 24 is journaled in a bearing mounted in the standard 18. A pinion carried on the end of the shaft 24 meshes with the internal gear 121 fixedly mounted on the shaft 122 which is journaled in the bearing 123 mounted on the standard 124 and also journaled in the standard 18. A pulley 126 is fixedly mounted on the end of the shaft 122 and serves to drive, through the belt 127, the pulley 128 which is loosely mounted on the shaft 129 which is journaled in a suitable bearing 130 and in a block 133 projecting laterally from the standard 131 which extends upwardly from the bed 17. A wire guiding bushing 132 is also mounted in the standard 131.

Fixedly mounted on the shaft 129 is the gear 134 which meshes with the gear 135 fixedly mounted on the shaft 136. An arm-137 carries thehead 138 which is mounted on the face of the gear 135 eccentrically by the bolt 139. An extension guide rod 140 projects outwardly from the end of the arm 137 and is slidably projected through the guide sleeve 141 mounted on the standard 131. A cutting element 142 is carried by the arm 137 at the recessed portion 143. The construction is such that as the shaft 24 is rotated the gears 134 and 135 will rotate so as to move the cutting element across the bore of the bushing 132 and cut the wire 62 projecting therefrom. The guide sleeve 141 is rotatably mounted and the passage of the arm 137 across the bore of the bushing 132, because of the eccentric mounting and the method of construction will occupy a minimum amount of time. This arm moves across the bore by a small fraction of rotation of the gear 135.

The pulley 128 is recessed, as at 147,- and the circumferential surface of this recess is provided with pockets 148. Fixedly mounted on the shaft 129 so as to rotate therewith is a collar.

rotation of the'collar 149 and the shaft 129 thus 1 serving to oscillate the cutter arm 137. Embracing one edge of the collar 149 is a' half ring 155 projecting outwardly" from which is a cam plate 156. Fixedly mounted on the pin 152'and'projecting radially outwardly therefrom is a dog 157.

The ring 155 is engaged by the pivotally mounted" arm 158 which is connected by the cable 159 to the core 160 of the electro-inagnet 161 which is connected to one side of a battery 162. A plate 164 is mounted on the bed 17 and'projecting upwardly therefrom are the supports 165 and 166 which are in spaced relation. Rods 167 connect the supports165. A block 168 is positioned between the supports 165 and 166 and is slidably mounted on the rods 167 which project there through. Springs 169 resist slidable movement of this block 168 in one direction. Rotatably mounted on a pin 170 projecting upwardly from the block is a contact disc 171 carrying on its upper face a contact plate 172 which is connected by the wire 173 to the pin 170 which is grounded through the wire 174. Projecting inwardly from the support 166 is a supporting arm 175. Slidably projected through this supporting arm 175 is a pin 177 carrying the contact head 178 which is normally held by the spring 179 in engagement with the upper surfaceof the contact disc 171. This pin 173 is connected by the wire 130 to the electromagnet 161. The construction is such that as the friction wheel 111 rotates, the contact disc 171 will be rotated. When the dog 153 is in engagement in one of the pockets 148, the shaft 129 will be rotated and will continue to rotate in the direction indicated, by the arrow in Fig. 8 until the dog 157 engagesthe cam plate 156 upon which, through a rocking of the pin 152 thedog 153 will be rocked against the compression of the spring 154 out of engagement with the pulley 128 and thus the shaft 129 will remain stationary. This condition will continue until the contact 172 engages the contact head 178 upon which a longitudinal movement of the core 160 will effect a rocking of the arm 158. This arm 158 engages the half ring 155 in a notch 158 and serves to prevent upward swinging of this ring 155. When the arm 158 is rocked by the core 160 a disengagement of the arm 158 from the half ring 155 will permit the dog 157 to force the half ring 155 upwardly so that the dog 153 will engage in one of the pockets 148 and the shaft 129 will be rotated. When the electromagnet is de-energized the dog 157 will have cleared the cam plate 156, and the arm 158 will return to the position shown in Fig. 8, in response to the pressure of the spring 158". The gearing of the mechanism is such that when the proper length of wire has traveled through the straightening mechanism, thecircuit to the electromagnet will be established and the cutting operation effected. In this way there is an automatic control provided whereby no back-thrust will be placed on the wire in order to operate the cutting mechanism.

While I have illustrated and described the preferred form of my invention, I do not wish to limit myself to the precise details of structure but desire to avail myself of such variations and modifications as may come within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a'device of the class described: a wire feeding means; a wire cutting mechanism rotating means for operating said cutting mechanism, said rotating means being normally non-rotative; a rotating mechanism for rotating said means; re-

leasable means for connecting said rotating .mechanism with said rotating means; said releasable means being normally in non-connecting position; means controlling the said releasable means; and means operable upon a feeding of a pre-determined amount of wire through saidv feeding mechanism for actuating said control means; and releasing said releasable means .for movement to connecting position. a

2. In a device of the class described: a rotatable member; anarm mounted adjacent one end eccentrically on said member; and a cutting element carried by said arm intermediate its'ends; and a guide member engaging the free end of said arm. I x

3. In a device of the class described: a rotatable member; an arm mounted at one end eccentrically on said member, said arm having a recess formed therein intermediate its ends; a cutting element mounted on said arm guiding said arm upon rotation of said rotatable member.

4. In a'device of the class described, a rotatable at said recess; and, a guide 3 member for engaging and member; an arm connected adjacent one end eccentrically to said member; a cutting element carried on said member intermediate its ends; and a swingably mounted guide member having a passage formed therein, the free end of said arm projecting through said passage.

I JOHN H. MOORE.

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