Source: http://www.google.com/patents/US5265502?dq=5251294
Timestamp: 2013-12-21 11:10:16
Document Index: 354177759

Matched Legal Cases: ['art 124', 'art 124', 'art 125', 'arts 124', 'art 125', 'arts 524', 'arts 524', 'arts 524']

Patent US5265502 - Multiple blade set strip apparatus for cable and wire - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsThe method of processing wire to cut the wire into sections and to strip sheathing from the wire to expose wire ends at opposite ends of the sections, and by operation of wire feed mechanism and cutter mechanism, the steps that include operating the feed mechanism and cutter mechanism to displace the...http://www.google.com/patents/US5265502?utm_source=gb-gplus-sharePatent US5265502 - Multiple blade set strip apparatus for cable and wireAdvanced Patent SearchPublication numberUS5265502 APublication typeGrantApplication numberUS 07/977,217Publication dateNov 30, 1993Filing dateNov 16, 1992Priority dateNov 9, 1990Fee statusPaidPublication number07977217, 977217, US 5265502 A, US 5265502A, US-A-5265502, US5265502 A, US5265502AInventorsJack L. HoffaOriginal AssigneeEubanks Engineering CompanyExport CitationBiBTeX, EndNote, RefManPatent Citations (79), Non-Patent Citations (5), Referenced by (11), Classifications (4), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetMultiple blade set strip apparatus for cable and wireUS 5265502 AAbstract The method of processing wire to cut the wire into sections and to strip sheathing from the wire to expose wire ends at opposite ends of the sections, and by operation of wire feed mechanism and cutter mechanism, the steps that include operating the feed mechanism and cutter mechanism to displace the wire endwise along an axis to a first position; sever the wire thereby to form wire forward and rearward sections, the forward section having a rearward end portion; and, the rearward section having a forward end portion, and; stripping sheathing from the forward section rearward portion and from the rearward section forward portion thereby to expose wire ends at the portions; the cutter mechanism including three blade pairs, each pair including two blades located at opposite sides of the axis, both blades of one pair being displaced toward the wire to sever the wire, and both blades of the remaining two pairs being displaced toward the wire sections to strip sheathing from the rearward and forward portions during controlled endwise displacement of the sections. A sheathing slug or slugs may alternatively be relatively displaced along the wire section or sections to protectively overhang an end or ends of wire metal core, the slug or slugs not then be completely stripped from the section or sections.
I claim: 1. In processing means for processing longitudinally axially extending wire that includes a core and protective structure extending about the core, the combination comprisinga) blade means having first edges for relative movement laterally to sever the wire, b) said blade means having second edges separate from said first edges for relative movement laterally to penetrate said wire structure to controlled depth, c) and guide means to guide axial movement of the wire into a position to be engaged by said first and second edges, and including control means including programmable computer means for controlling said movement of said blade means including said first and second edges, d) and drive means to controllably drive said wire endwise and including wire engaging drives respectively located at first and second locations axially of said blade means, and wherein said wire engaging drives comprise first and second endless conveyors spaced apart in the direction of wire axial movement, and at said first and second locations respectively, each of said first and second endless conveyors including stretches directly above and below the wire, said stretches elongated generally in the length direction of the wire and there being means controllably operable to positively displace the conveyors and said stretches toward and away from the wire at opposite sides thereof. 2. The combination of claim 1 wherein said first and second edges are interconnected to more together toward and away from the wire.
3. In processing means for processing longitudinally axially extending wire that includes a core and protective structure extending about the core, the combination comprisinga) blade means having first edge means for relative movement laterally to sever the wire, b) said blade means having second edge means separate from said first edge means for relative movement laterally to penetrate said wire structure to programmably selected controlled depth, c) guide means to guide axial movement of the wire to a location for engagement by said first and second edge means, d) means to controllably drive said wire to position the wire to be severed by said first edge means, thereby to produce forward and rearward wire sections, e) control means including programmable computer means for controlling said movement of said blade means including said first and second edges, f) said means to controllably drive said wire including wire engaging drives respectively located at first and second locations axially of said blade means, and wherein said wire engaging drives comprise first and second endless conveyors spaced apart in the direction of wire axial movement, and at said first and second locations respectively, each of said first and second endless conveyors including stretches directly above and below the wire, said stretches elongated generally in the length direction of the wire and there being means controllably operable to positively displace the conveyors and said stretches toward and away from the wire at opposite sides thereof. 4. In processing means for processing longitudinally axially extending wire that includes a core and protective structure extending about the core, the combination comprisinga) first blade means for relative movement laterally to sever the wire, b) other blade means spaced axially from said first blade means for relative movement laterally to penetrate said wire structure to programmably selected controlled depth, c) guide means to guide axial movement of the wire at a location between said first and other blade means, d) and drive means to controllably drive said wire to:i) position the wire to be severed by said first blade means, thereby to produce forward and rearward wire sections, ii) controllably relatively displace at least one of said sections axially, into position to enable penetration of said other blade means into said protective structure, for subsequent stripping of selected length of the protective structure from a rearward portion of the forward section or from a forward portion of the rearward section, as during controlled endwise displacement of said section by said drive means, e) said means to controllably drive the wire including wire engaging drives respectively located at a first location at an axial side of said first blade means remote from said other blade means, and at a second location at an axial side of said other blade means remote from said first blade means, f) and wherein said wire engaging drives comprise first and second endless conveyors spaced apart in the direction of wire axial movement, and at said first and second locations respectively, each of said first and second endless conveyors including stretches directly above and below the wire, said stretches elongated generally in the length direction of the wire and there being means controllably operable to positively displace the conveyors and said stretches toward and away from the wire at opposite sides thereof. 5. The combination of claim 4 including control means operatively connected with said blade means for controllably effecting said movement thereof.
6. The combination of claim 5 wherein said first and second blade edge means are interconnected to move together toward and away from the wire.
7. The combination of claim 1 including control means operatively connected with said first and second blade edge means for controllably effecting said movement thereof.
8. The combination of claim 7 wherein said first and second blade edge means are interconnected to move together toward and away from the wire.
9. In processing means for processing longitudinally axially extending wire that includes a core and protective structure extending about the core, the combination comprisinga) blade means having first edge means for relative movement laterally to sever the wire, b) said blade means having second edge means separate from said first edges for relative movement laterally to penetrate said wire structure to controlled depth, c) control means, including programmable computer means, d) guide means to guide axial movement of the wire to a location for engagement by said first and second edge means, e) said control means including means to controllably drive said wire to position the wire to be severed by said first edge means, thereby to produce forward and rearward wire sections, f) and said control means including means to controllably change the relative axial positions of the blades relative to the wire sections, to enable penetration of said second edge means into said protective structure, for subsequent stripping of selected lengths of the protective structure from a rearward portion of the forward section and from a forward portion of the rearward section, g) and drive means to controllably drive said wire axially and including wire engaging drives respectively located at first and second locations axially of said blade means, and wherein said wire engaging drives comprise first and second endless conveyors spaced apart in the direction of wire axial movement, and at said first and second locations respectively, each of said first and second endless conveyors including stretches directly above and below the wire, said stretches elongated generally in the length direction of the wire and there being means controllably operable to positively displace the conveyors and said stretches toward and away from the wire at opposite sides thereof. 10. In processing means for processing longitudinally axially extending wire that includes a core and protective structure extending about the core, the combination comprisinga) first blade means for relative movement laterally to sever the wire, b) second blade means spaced from said first blade means for relative movement laterally to penetrate said wire structure to programmably selected controlled depth, c) control means, including programmable computer means, d) guide means to guide axial movement of the wire, to a location for engagement by said first and second blade means, e) and said control means including drive means to controllably drive said wire to:i) position the wire to be severed by said first blade means, thereby to produce forward and rearward wire sections, ii) controllably relatively displace at least one of said sections axially, into position to enable penetration of said other blade means into said protective structure, for subsequent stripping of selected length of the protective structure from a rearward portion of the forward section or from a forward portion of the rearward section, as during controlled endwise displacement of said section by said drive means, f) said drive means including wire engaging drives respectively located at a first and second locations axially of said blade means, and wherein said wire engaging drives comprise first and second endless conveyors spaced apart in the direction of wire axial movement, and at said first and second locations respectively, each of said first and second endless conveyors including stretches directly above and below the wire, said stretches elongated generally in the length direction of the wire and there being means controllably operable to positively displace the conveyors and said stretches toward and away from the wire at opposite sides thereof. 11. The combination of claim 10 wherein said first and second blade means respectively include first and second blade edge means which are directly interconnected to move together toward and away from the wire.
This is a continuation of application Ser. No. 765,986 filed Sep. 26, 1991 which is a continuation-in-part of Ser. No. 659,557 filed Feb. 22, 1991, which is a continuation-in-part of Ser. No. 611,057 filed Nov. 9, 1990 and now U.S. Pat. No. 5,146,672.
b) first cutter means including multiple blades located for movement toward the axis, and a first drive means for controllably displacing the multiple cutter blades toward the axis to sever the
Referring to FIG. 11, the wire severing blades 13a and 13b are fully laterally retracted, as are the wire sheathing stripping blades 16a and 16b. Blades 17a and 17b are in axial alignment with blades 16a and 16b, and are not shown. Note V-angled blade edges 13a' and 13a'', and blade edges 13b' and 13b''. The blades 13a, 16a and 17a at one side of the wire 10 are interconnected by axially extending carrier rod 80; and the blades 13b, 16b and 17b at the opposite ends of the wire are interconnected by axially extending carrier rod 81, laterally spaced from rod 80. Rods 80 and 81 are relatively movable laterally toward one another to effect wire severing, as by blades 13a and 13b (see FIG. 9 and also FIG. 1b). Rods 80 and 81 are further laterally movable toward one another to effect penetration of the blade edges 16a' and 16a'', and 16b' and 16b'' into the sheathing (as in FIGS. 10 and 10a), and as also seen in FIG. 1d. Thereafter, the wire forward and rearward sections 10a and 10b are separated as in FIG. 1e to endwise strip the slugs 10aa and 10bb, off the wire cores, as also seen in FIG. 11. Dropping of the slug is also seen in FIG. 11, as is lowering of a wire guide lower sector B of guide 11b'', to release the slug. The upper guide sector is shown at A. A drive 130 is operable to lower and raise sector B.
Referring now to FIGS. 13a-13b, the elements which correspond to those in FIGS. 1a)-1f) bear the same numerals. FIG. 13a corresponds to FIG. 1c; and FIG. 13b corresponds to FIG. 1e. In FIG. 13b, prior to the time the blades 16a, 16b, 17a, and 17b penetrate into the sheathing 11b, the wire sections 10a and 10b are displaced, endwise axially oppositely, to controlled extent as by drives 21a and 21b, under computer control, so as to control such displacement. See for example the displacements d.sub.1, This in effect controls the length 1.sub.1 and 1.sub.2 of slugs of insulation 11b' and 11b'', as between slug ends 11c' and 11c'' and 11d' and 11d''ends 11c'' and 11d'' being adjacent, respectively, the cutters 16a and 16b, and 17a and 17b which penetrate and out the insulation.
Thereafter, the blades 16a and 16b, and 17a and 17b penetrate into the sheathing, and wire sections 10a and 10b are displaced axially endwise oppositely (see arrows 200 and 201), to controlled extents h.sub.1 and h.sub.2 as by the computer-controlled drives 21a and 21b, to relatively displace the insulation slugs to positions shown in FIGS. 13b, 13c and 13d, wherein the slugs protectively overhang the cut ends 11aa and 11bb of wire core. This protects against fraying of ends of wire clustered strands as seen at 11c in FIGS. 13b-13d. The blades are then retracted, to leave the wire sections and slugs, as seen in FIG. 13c, the final product being seen in FIG. 13d. Note the exposed wire core extents 11f and 11g between the opposite end insulation slugs 11b' and 11b'', and the main extent 11j of insulation. The slugs are held in position on the core by friction, and may be pulled off at time of wire use.
A reciprocating drive swings the part 124a to position 124a' and back, under the control of master control 35. That drive, for example, includes a motor 130, and linkage means, including interconnected links 131-134 operatively connected between the motor shaft 135'' and the part 124a. A corresponding motor 130a and links 131a-134a are connected to part 125a to pivot same. Guide parts 124a and 125a have concave arcuate wire guide surfaces, as at 124aa.
In FIG. 14, the plunger 135 is connected to the linkage 133 and 132. See also FIG. 17 showing plunger 135 connected at 132a to link 132. The nose 135' of the plunger is shown pushing the wire slug 10aa to the left. A similar pusher is operated in conjunction with pivoting of wire guide part 125a. A wire guide opening appears at 140 in FIG. 14. Motors 130 and 130a operate in one direction (rotate 180 (-180
The blades are shown as thin, flat steel sheets, formed to have dovetailed tongue ends at 213a.sub.1, 216a.sub.1, 217a.sub.1, and at 213b.sub.1, 216b.sub.1, and 217b.sub.1. Such dovetailed ends are receivable in and gripped by dovetailed groove holders schematically indicated at 229 and 230, assuring ease of replacement of the blades, while also assuring positive gripping of the blades and their proper alignment.
Such holders 229 and 230 may be considered as parts of the drives 218a and 219a, respectively. The blades themselves have V-shaped cutting edges arranged in pairs in opposed relation. Thus, blades 213a and 213b have opposed V-shaped edges at 213a.sub.2 and 213b.sub.2, which sidewardly slidably overlap completely during wire severing (see FIG. 18b); blades 216a and 216b have opposed V-shaped edges at 216a.sub.2 and 216b.sub.2 which sidewardly slidably overlap to limited extent during sheathing stripping (see FIGS. 18d and 18e); and blades 217a and 217b have opposed V-shaped edges at 217a.sub.2 and 217b.sub.2 which sidewardly overlap to limited extent during sheathing stripping (see FIGS. 18d and 18e). Such opposed V-shapes of the cutting edges assure complete severing of the sheathing.
FIG. 19 also shows conveyor rotors 260 and 261, and 262 and 263. These carry the belts 249 and 250. Axle 25811 for rotor 261 is suitably driven by axle 258', as via a belt and pulleys; and axle 257'' is suitably driven by axle 257', as via a belt and pulleys (see in FIG. 2 drive belts 14 and 15, etc.). Accordingly, when the belt stretches 249' and 250' are closed against the opposite sides of the wire 210b, and the motor 252 is operating, the wire is displaced endwise. Similar drives for conveyors 247 and 248 are provided, as shown.
In FIGS. 31-33, the blade holder 280 is held in interengagement at 311 with the block 298 by a clamp 312, which engages the front side of the holder at 313. A fastener 314 attaches the clamp to the block 298. Dovetailed tongue end 216a' of blade 216a has one angled edge surface 216a.sub.1 ', engaged with correspondingly dovetailed surface 280a.sub.1, for retention. A retainer in the form of a shaft 420 has an interior flat surface 420a rotatable into corresponding engagement with the oppositely angled surface 216a.sub.2 ' of the blade, thereby to retain and locate the blade, vertically. Set screws 420a keep shaft 420 from rotating.
The trap door parts 524a and 524b, and pusher parts 524b and 525b, have associated reciprocating drives, to open and close then in timed relation, as described. See for example in FIGS. 35a-35c the links 556 and 557, respectively, pivotally connected with parts 524a and 524b, as at 556a and 557a, the links passing through guide openings 558 and 559 in the blade holder structure.
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