US3854317A - Spaced forwarding device for cut wire - Google Patents

Spaced forwarding device for cut wire Download PDF

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Publication number
US3854317A
US3854317A US35491273A US3854317A US 3854317 A US3854317 A US 3854317A US 35491273 A US35491273 A US 35491273A US 3854317 A US3854317 A US 3854317A
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US
United States
Prior art keywords
chain
weight
inclined plate
wire
cut
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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English (en)
Inventor
H Sato
N Yoshida
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Neturen Co Ltd
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Neturen Co Ltd
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F23/00—Feeding wire in wire-working machines or apparatus
    • B21F23/005—Feeding discrete lengths of wire or rod
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/12—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by chains or belts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2192—Endless conveyor

Definitions

  • the present invention relates to a spaced forwarding [451. Dec. 17, 1974 7 device for cut wires which can automatically forward with specified spacing cut pieces of a long smalldiameter wire one by one to the working stage. More specifically it relates to a forwarding device for cut wires which can forward cut pieces one by one in an orderly fashion as required for the working stage, even if the timing'for cutting is not coordinated with the timing for forwarding to the working stage.
  • the improved spaced forwarding device for out wires comprises a chain equipped on the periphery with a plurality of wire-holding bosses at a specified interval and at least three sprocket wheels; and an inclined plate for forwarding the cut wires.
  • the rotating path of the chain contains an inclined part following said inclined plate and a vertical part.
  • a weight is hung from a-shaft on a fourth wheel located in higher position along the inclined part of the path, another weight is hung from a shaft on a wheel located below the vertical part of the path, in such manner that the highest and lowest wheels can be intermittently rotated and said first and fourth wheels can be shiftable along said inclined plate.
  • the lower weight is greater than the highest weight.
  • cut wires can be sent one by one to the working stage in accordance with the requirements of the working stage, evenif the timing for cutting wires is not related to the timing for forwarding them.
  • cut wires for example pieces of a steel wire which have been'cut to a specified length by a shearing machine to the working stage
  • the following forwarding method is known in the prior art. Namely, cut wires are collected in something like a concave sheet; when they accumulate to certain quantities in said sheet, one end of said sheet is pulled to displace the wires thereon upward; and the wires in the upper layer are one by one picked'up by a stopper, to be carried away on a belt conveyer.
  • This conventional method is applicable with no great difficulty for automatically carrying cut wires one by one when they are cut relatively. short.
  • wires of, say, 4mm-30mm in diameter are cut longer than 3-l0mm, they get entangled after being cut and it becomes difficult to forward them one by one automatically. Therefore, under these circumstances, they have to be manually dissentangled and sent one by one to the working stage. Even if it were made possible by some means to avoid their entanglement and send them one by one automatically, the conventional method would still be ineffective for automatic spaced forward ing of cut wires, when the timing for cutting does not coincide with the timing for sending to the working stage.
  • the object of the present invention is to provide a spaced forwarding device for wires which can smoothly forward long pieces of small diameter wires one by one automatically without entanglement and meet the requirements for the working stage, even when the timing for cutting the wires does not correspond with the timing for sending them.
  • the spaced forwarding device of the invention comprises a chain equipped on the periphery with a plural.- ity of wire-arresting bosses at specified intervals and at least first, second, and third sprocket wheels; and an inclined plate for forwarding the wires.
  • the rotating path of said chain contains an inclined part following said inclined plate and a vertical portion.
  • a weight W is hung from a shaft for a fourth sprocket wheel located in higher position along said inclined part of path than the second sprocket wheel or from a truck end, while a weight W is hung from a shaft for the third sprocket wheel located belowsaid vertical part of the path, in such a manner that the three wheels can be intermittently rotatable and the second and fourth said wheels, can be shiftable along said inclined plate.
  • Said weights are set in'the relation of W W By dependently or independently rotating said first and second wheels intermittently, cut wires can be successively engaged by the wire-arresting bosses for spaced forwarding.
  • said second wheel is mounted on a truck 33 which is movable along guide rails laid with the same inclination angle as said inclined plate; the relation of said two weights is so set as to be W W p. Qcos QSinO (p. is the frictional coefficient and Q is the weight of the truck and its load).
  • a mechanism which, acting upon order from the wire-cutting part, halts the rotation of said second wheel or causes its rotation by a specified number of degress.
  • one end of said scissors being fixed to the truck and'the other end fixed close to the position of the first I wheel; thereby the movement of .the chaintogether with the rotation of said first and second wheels is made smooth.
  • .More than two-sets of such a spaced forwarding device for wire are preferably to be disposed in parallel said rotatable wheels all being fitted on the same shaft.
  • FIG. 1 is a schematic plan view illustrating a working 7 stage to which the present invention is applicable.
  • FIG. 2(a) to FIG. 6 illustrate the operation of the present invention, FIG. 2(a) being a side view showing cut wires being forwarded at specified intervals.
  • FIG. 2(b) is a plan view of the same (cut wires not.
  • FIG. 3(a) shows a cross-section at 3a3a of the same as in FIG. 2(b).
  • FIG. 3(b) is a side view of the same as in FIG. 3(a).
  • FIG. 3(0) is a detailed longitudinal section view of the clutch mechanism36 in FIG. 3(b).
  • FIG. 3(d) is a plan view of the rotatable wheel consituting the clutch mechanism in FIG. 3(0).
  • FIG. 3(e) is a plan view of a wheel to be coupled with said rotatable wheel. 1
  • FIGS. 30') and 3(g) are respectively side views explaining the working relationshipbetween said rotatable wheel in FIG. 3(d) and said wheel in FIG. 3(e).
  • FIG. 4(a) is a partial plan view of the chain to be used in the present invention.
  • FIG. 4(b) is a front view of the chain in FIG. 4(a).
  • FIG. 5 is a plan view of a plurality of mechanisms of FIG. 2(a) being arranged in parallel. 7
  • FIG. 6' is a side view explaining the wire-forwarding relationship between the device of the present invention and the machining part.
  • FIGS. 1 to 6 the present invention can be described as follows:
  • FIG. 1 which shows a layout under which the .present invention is applied
  • 1 is the cutting part where a wire 4 (for instance steel wire) of small diameter unwound from the coil 4 is successively cut to a specified I length by shear 5 of the prior art.
  • Wire pieces cut in this 3 gases- 1w invention aims at the improvement of, the forwarding device 2 in FIG. 1.
  • FIG. 2(a) to FIG. 6 The specific operation of the present invention is to be described referring to FIG. 2(a) to FIG. 6.
  • FIG. 2(a) to FIG. 6 denotes chains ofidentical structure arranged in parallel at specified intervals.
  • the chain 30 should be one known in the prior art, such as illustrated in FIGS. 4(a), 4(b) or one conforming to the International Standard R S 40.
  • roller plates 30c, (30d) are arranged in parallel with predetermined spacing. At the two outside ends of said plates 30c (-l-d) are located both ends of the pin link plates 30a, 30b which are equipped with wire-arresting bosses.
  • rollers 30s are disposed.
  • the roller chain 30 as seen from FIG. 2(a) comprises an inclined part 30 A having a certain pre-determined angle and a vertical part 30 B.
  • the inside surface of the end corresponding to the high position at the left extreme in FIG-2(a) follows a part of the outside of the sprockets 13a, 13b disposed in parallel at specified intervals, while the inside surface of the end corresponding to the low position at the extreme right in FIG. 2(a), follows a part of the outside of the sprockets 6a, 6b disposed parallel at specified intervals.
  • the sprockets 13a, 13b are of the same diameter and are pivoted to the shaft 14, and these sprockets 13a, 13b are driven by shaft 14 to rotate in the same direction at the same velocity.
  • the sprockets 6a, 6b are of the same diameter and are pivoted to the same shaft 7; and these sprockets 6a, 6b driven by shaft 7 to rotate in the same direction at the same velocity.
  • the clutch 36 to be used here is one known rotatable round body 36a and said non-rotatable round body 36b are of the same diameter.
  • 365,366 are formed at specified intervals on the specified periphery of said rotatable round body 36a, while 30 is bent nearly perpendicularly 'at the sprockets 6a,
  • the bottom inside of said vertical part 30B follows the outside of the sprockets 27a, 27b.
  • the sprockets 27a, 27b are of the same diameter and oppose each other at a specified distance, both being pivoted to the shaft 28. These sprockets 27a, 27b, are driven by shaft 28 to rotate in the same'direction at the same velocity.
  • the shafts7, 28 respectively for the sprockets 6a, 6b and 27a, 27b are situated in the same vertical plane. It is desirable that the sprockets 6a, 6b and 13a, 13b be of the same diameter.
  • the periphery of the 4 chain 30 is designed to run along the peripheries of the idle sprockets 26a, 26b respectively.
  • a weight W is hung via a wire 32 from shaft 19 of the sprockets 18a, 18b in such manner that the shaft 19 and the sprockets 18a, 18b are rotatable.
  • a sprocket wheel 8 is fitted with its center fixed to the shaft portion 7 between the sprockets 6a and 6b; and the periphery of sprocket wheel 8 is connected via a chain 30 to the periphery of a sprocket wheel 9 of the same diameter.
  • a rotatable wheel 11 is pivoted to the drive shaft 10 for sprocket wheel 9, there are positioned, separated by a specified distance, a limit switch Ls and switch dog 12 that can be contacted by the former.
  • Drive shaft 10 is moved upon a signal instruction from the working stage 3.
  • Ro-' convexes 363-366 are formed on said round body 36b at respective positions permitting them to fit into said concaves 363-366.
  • round body 36 is so fitted as to be independent of the rotation of the shaft 16; that is, the shaft 16 is disposed through the hollow center 367 of the round body 36b.
  • the part along the periphery of the round body 36b are notched 36R as shown in FIG. 3(c); and the coil 361 are arranged along said notches 36R.
  • round body 36b is displaced in the arrow direction in- FIG. 3(c) and then rotable round body 36a will be disengaged from the round body 36b and become free to rotate.
  • coil 361 areenergized and at the same time the shaft 14 of the sprockets 13a, 13b is turned in the specified direction and if the energization of said coil 361 is so set that said coil may be deenergized after t seconds of energization.
  • shaft 14 may be deenergized after t +d seconds of energization using for instance a conventional electrical timer or the like, then upon the instruction signal from cutting part 1, rotatable round body 36a will rotate as a result of being driven via the sprocket wheel 15a,
  • sprocket wheels 18a, 18b which are pivoted to shaft 19 and to said shaft 19, rotatable bodies 201a, 20lb are pivoted in parallel at a specified distance, said bodies 201a, 20lb being equipped on their periphery with wire-arresting bosses 20-23.
  • Sprocket 18a and 18b are so constructed as to be able to interlock via the chain 24 with the sprocket wheel 15a, 15b.
  • Wire-arresting bosses 20-23 areso constructed that as the rotatable bodies 201a, 20lb turn, their tops may successively project above the top surface of the inclined plate 34. Since the sprocket wheel 18a, 18b can interlock with the sprocket wheels 15a, 15b and rotate together with the latter, it is possible to stop the cut wire forwarded from the cutting part 1 first by the wire-arresting bosses 20-23 and then successively engage the cut wire by the engaging bosses of the chain 30.
  • bosses 20-23 are so set thatsaid bosses can successively project above the-top of the inclined plate 34 for every turning by a specified angle of said sprocket 18a, 18b.
  • the size and height of the arresting bosses 20-23 be greater than those of the wire-holding bosses 301-N on the chain 30.
  • One end of said Nurenberg scissors 38 is attached to the shaft 360; of the sprocket 360a, 36Gb in such manner that the-sprocket 360a, 360b can be rotatable, the shaft 360;'is also attached to the truck 33 via supporting member 336 in such manner that the shaft 360' can be rotatable, while the other end of the Nurenberg scissor 38 is fitted at the point 363 close to the sprocket 6a, 6b.
  • the sprocket wheel 360-362 are so situated as their peripheries are always in contact with the corresponding under surface of the sprocket wheel 360a, 360b is situated on the truck 33, the movement of the truck 33 on the guide rails is accompanied by the movement of said sprocket wheels 360-362 along the slope of said inclined plate 34.
  • the gaps between the sprocket wheels 360-361 and 361 362 are narrowed, thereby increasing the resistance of the Nurenberg scissors 38.
  • said gaps between the sprocket wheel 360361, 361-362 are widened, thereby decreasing the resistance of the Nurenberg scissors 38.
  • the truck 33 serves sprockets13a, 13b, 15a, 15b, 17a, 17b, 18a, 18b and rotatable bodies 201a, 20lb.
  • the mounting of the truck with these rotatable bodies can be realized as follows: one of the ends of supports 335, 334, 336, are fitted respectively to the shafts of the rotatable bodies such that the corresponding shafts are able to rotate, while the ends of said supports are fixed to specified positions on the truck 33.
  • the truck 33 can move along the guide rails 35 positioned outside of both lateral edges of chain 30. Saidguide rails 35 are fitted to the main body 37 at the same angle of inclination as the inclined plate 34.
  • a weight W At a specified position on drive shaft 19 of the rotatable bodies 201a, 201b, one end of wire 32 so fitted as to permit rotation of shaft 19, while at the other end of said wire 32 is hung via the sprocket 31 a weight W Likewise, the weight W is hung from the shaft 28 via wire 29.
  • the relationship between the weight W, and the weight W is set such that W W,; when, however, truck 33 is used as described above, the relationship is set such that W W, p. Qcos 0 QSin 0 where p.
  • FIGS. 2(a), (b), 331 denotes the wheel of the truck 33;332 is the axle.
  • More than one set of such a chain and an inclined plate 34 are, as indicated in FIG. 5, laid out in parallel between, say, the wirecutting part 1 and the machining part 3.
  • the cutting part 1 issues an instruction signal as follows: A long wire is sent to a conventional shear; the tip of said wire hits the stopper, thereby bringing the shear into action. In the course of cutting the wire into pieces, the shear comes into contact with the limit in the round body 36b the spring 362 exerts a force to revert said body 36b to the original position. Thereby the convex released from the corresponding concave fits into a next concave; thus, the rotatable round body 36a is turned just by an angle equivalent to the distance between said concaves and then it stops. Thereby the sprockets 13a, 13b are turned just by the number of degrees defined, an angle of 6.
  • cut wires go down by their own'gravity along the inclined plate 34 and come to be arrested by bosses 20 projecting on the periphery of the rotatable bodies 201a, 201b Supposing that following the arrest of a cut wire by the boss 20, a next wire is produced from the cutting part 1.
  • the shafts 14, 19 turn just by the specified angle in the reversed-A direction.
  • the truck 33 goes up the guide rails just over a specified distance; and the boss 21 juts out above the top of the inclined plate 34.
  • the first cut wire descends by its own gravity along the inclined plate 34 out of the boss 20 and gets arrested by the boss 306, while the next cut wire is engaged by the next boss 21. In this fashion,
  • the sprocket 13a (13b) remains at the same position as before the instructions or it makes downward displacement over a distance determined by the intermittent rotation angle.
  • FIG. 2(b) and FIG. 6 A test example of the device according to the present invention is given below.
  • a device as illustrated in FIG. 2(b) and FIG. 6 was used under the following conditions.
  • the sprockets 13a, 13b and 6a, 6b were made to rotate intermittently at the same time or different times, thereby it has been confirmed that spaced forwarding of cut wire can take place with smoothness through specified angle rotation of these sprockets.
  • a spaced forwarding device for cut wires comprising a. chain means including a plurality of wire arresting bosses at predetermined intervals on the periphery of said chain;
  • first weight means suspended from a first of said.
  • the device-of claim 2 further including an additional rotatable wheel means mounted on said truck means and interlocked with -said'first rotatable wheel means said additional wheel means including wire arresting bosses at specified intervals along the periphery thereof wherebycut wires are engaged by said arresting bosses on said additional wheel means and transferred to said arresting bosses on said chain'means.
  • the device of claim 1 further including at least three of said devices arranged parallel to each other wherein corresponding rotatablewheel means are mounted on a single shaft.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pusher Or Impeller Conveyors (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
US35491273 1972-04-26 1973-04-26 Spaced forwarding device for cut wire Expired - Lifetime US3854317A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4127472A JPS5335342B2 (cs) 1972-04-26 1972-04-26

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US946584A (en) * 1904-11-14 1910-01-18 John Rutherford Smith Feeding mechanism for stamping-machines.
US2244817A (en) * 1938-07-21 1941-06-10 Waterbury Farrel Foundry Co Feed mechanism
US2999527A (en) * 1958-04-01 1961-09-12 Kelsey Hayes Co Automatic restrike die and feed mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US946584A (en) * 1904-11-14 1910-01-18 John Rutherford Smith Feeding mechanism for stamping-machines.
US2244817A (en) * 1938-07-21 1941-06-10 Waterbury Farrel Foundry Co Feed mechanism
US2999527A (en) * 1958-04-01 1961-09-12 Kelsey Hayes Co Automatic restrike die and feed mechanism

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Publication number Publication date
JPS492269A (cs) 1974-01-10
JPS5335342B2 (cs) 1978-09-26

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