US3498902A - Portable unitary electroplating assembly - Google Patents

Portable unitary electroplating assembly Download PDF

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Publication number
US3498902A
US3498902A US632493A US3498902DA US3498902A US 3498902 A US3498902 A US 3498902A US 632493 A US632493 A US 632493A US 3498902D A US3498902D A US 3498902DA US 3498902 A US3498902 A US 3498902A
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US
United States
Prior art keywords
barrel
assembly
plating
members
tank
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Expired - Lifetime
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US632493A
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English (en)
Inventor
Steve W Wojtanek
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STERLING SYSTEMS Ltd
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STERLING SYSTEMS Ltd
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/16—Apparatus for electrolytic coating of small objects in bulk
    • C25D17/18—Apparatus for electrolytic coating of small objects in bulk having closed containers
    • C25D17/20—Horizontal barrels

Definitions

  • the assembly is adapted for ready positioning on the tank for operation and is readily removable therefrom for loading or unloading of articles to be plated, or other treatment of said articles.
  • Thi permits substantially continuous use of all available positions on the tank resulting in maximum efliciency in the use of the plating equipment.
  • the present invention is particularly concerned with the provision of improved means for electroplating small articles, for example, electronic components and the like.
  • Such means comprises a portable unitary assembly including a novel barrel supported on novel support means incorporating suitable drive means for rotating the barrel.
  • the unitary assembly is intended to be positioned on a tank containing electroplating fluid in which the barrel is intended to be submerged.
  • the assembly may be removed from the tank and replaced by another like assembly so that the tank and plating equipment may be continuously utilized with a minimum of lost time while barrels are being loaded or emptied, or the parts within a barrel are being further treated.
  • the barrel is adapted to be removable from its support means and may be utilized for storing the parts for subsequent operations, such as washing or drying. During such intervals another similar barrel loaded with other parts to be plated may be mounted on the support mean which is then operatively positioned on the plating tank, thereby permitting more economical and eflicient use of the plating equipment.
  • FIG. 5 is a vertical cross-sectional view of a modified embodiment of barrel construction
  • FIG. 6 is afront elevational view partly in cross-section, of another modified embodiment, of my invention.
  • FIG. 7 is an end elevational view of the embodiment illustrated in FIG. 6;
  • FIG. 8 is an elevational view of the embodiment of FIG. '6, rotated and illustrating the manner in which the barrel may be mounted on the support means;
  • FIG. 9 is an elevational view of another modified embodiment of barrel construction.
  • the numeral 10 indicates generally a unitary assembly comprising a plating barrel 11 and support and drive means 12 for said barrel.
  • Said support mean comprises a pair of vertical members 13 and 14 joined together in spaced relation at their upper ends by a pair of front and rear panels 1-6 and 17, respectively. Said panels, at each end, extend beyond the members 13 and 14, with corresponding extending portions having registering openings to receive electrical conductor bars 18, hereinafter to be described.
  • the panels 16 and 17 provide the front and rear walls of an enclosure which includes a top wall 19.
  • a bar 22 has its ends anchored in the vertical members 13 and 14 and affords handle means for carrying the assembly 10.
  • an electric motor 23 having on its shaft a drive pinion 24 which is in meshing engagement with an intermediate idler gear 26 I0- tatably supported on a stub shaft 27 anchored in the member 13.
  • a conventional adjustable timing mechanism 28 in electrical circuit with the motor 23.
  • Said timing mechanism includes a dial mounted on the outer wall of the panel 16 and a rotatable knob adapted to be rotated to adjust the device for a desired time interval.
  • a switch not shown, is provided with an actuating lever 29 which extends through an aperture in the member 14, the switch being in electrical circuit with the timing device 28 and motor 23 for controlling the same.
  • the conductor bars 18 are formed preferably of tubular copper sections, with the rear end portion of each bar being machined as at 30 to snugly engage and effect complete electrical contact with the cylindrical bus bar 31 suitably supported above the tank, not shown, containing the plating fluid.
  • the forward end portion of each conductor bar 18 is covered by a suitable insulating sleeve 32 having an insulating cap 33.
  • the insulated portions of the conductor bars 18 are adapted to rest on a suitable support member 34 provided on the electroplating tank.
  • a conventional insulated flexible electrical conductor or dangler 36. is secured to each of the conductor bars 18 by a lug 37, with each of the conductors passing through a respective axial opening 38 of the plating barrel 11, hereinafter to be described.
  • the current supply for the motor 23 and timer 28, of course, is independent of the current carried in the bus bar 31 utilized in the plating function.
  • the structural members, hereinabove described, including the gears 24 and 26 and insulating sleeves 32 are preferably formed of polypropylene or any other suitable material which is inert to the action of the planting fluids.
  • the barrel indicated generally by the numeral 11, comprises a pair of end disc members 39 and 41, formed of polypropylene or other suitable material and having axial shaft portions 42 and 43 respectively, received in bearing apertures provided in the members 13 and 14 respectively.
  • Each of the end discs 39 and 41 is provided with an axial opening 38 through which pass the conductors 36.
  • the disc 39 is provided on its periphery with 0 gear teeth 44 adapted to engage with the teeth of the onal in form.
  • Said body is formed or a plurality of panels a, b, c, d, e and 1, each of which comprises a sheet of woven fabric 46 of any suitable inert material which is unaffected by' electroplating fluids, said fabric may be woven from polypropylene filaments and may have any desired size mesh, depending upon the character of the articles being plated, so as to avoid penetration of any parts of the articles into the mesh openings.
  • the fabric sheet 46 of five of the panels b, c, d, e and f should be integral so as to afford a continuous surface, thereby to avoid the possibility of any of the articles being plated from lodging in any joint between-adjacent panels,
  • bonded to the woven fabric 46 are five rectangular grid sections 47 formed of a suitable inert lastic material, such as acrylic resin.
  • the panel structure is similar to that described in my co-pending application Ser. No. 563,517, filed July 7, 1966.
  • Panels b and f are provided with longitudinally extending solid rigid edge members 48 and 49, respectively, shaped in cross-section substantially as illustrated in FIG. 2.
  • Said members are formed of polypropylene, acrylic resin or any other suitable material and are suitably bonded to the fabric 46 and respective grid sections 47.
  • the removable closure panel a includes upper and lower longitudinal rigid edge members 51 and 52, respectively, shaped in cross-section substantially as illustrated in FIG. 2, and adapted to cooperate with the edge members 48 and 49, respectively.
  • One or more spring clamps 53 mounted on edge member 49 serve to secure the closure panel a in closed position.
  • the barrel components are held in assembled relation by screws 54 which secure corresponding ends of the edge members 48 and 49 to respective disc members 39 and 41.
  • one or more tie rods 56 shaped substantially like that illustrated in FIG. 3, and having threaded ends passing through registering openings in the end disc members 39 and 41 serve to clamp said disc members to the body portion of the barrel.
  • the tie rod 56 is provided with an intermediate sinuous portion 57 or a suitable loop to automatically compensate for axial expansion and contraction of the barrel which occurs as a result of its being exposed to differentials in temperature between the plating fluid in the tank and the ambient air, as when the barrel is removed from the plating tank. As seen in FIG.
  • the sinuous portion 57 of the tie rod 56 is adapted to lie flat against the outer surface of one of the panels.
  • the tie rods are secured by nuts which effect clamping of the body panels between the end disc members 39 and 41 to provide a rigid structure.
  • tie rods and nuts formed from titanium metal are highly suitable for the instant application. This metal is unaffected by plating fluids and provides the desirable machining, forming and service characteristics required.
  • a plurality of unitary assemblies 10, as above described, is employed in connection with a plating tank, the said assemblies, when on the tank, each being supported by their respective bars 18, at their rearward ends, on a bus bar 31, and, at their forward ends, on a support member 34, both bar 31 and member 34 extending longitudinally of the tank.
  • the barrel 11 is completely submerged in the tank fluid, while the super structure of the support and drive means 12, of course, is disposed above the level of the fluid.
  • the barrel 11 is loaded through the opening thereof with parts to be plated while the assembly is removed from the plating tank.
  • the closure panel a is replaced and locked in closed position and the entire assembly may then be lifted by the carrying bar 22 and moved to operative position on the plating tank, as above described.
  • the assembly 10 is rendered operative.
  • the timer 28 is adjusted to record a desired time interval, the end of which is signaled by suitable audible or visual means-to inform the operator that the plating interval is completed.
  • the barrel 11 is a permanent compound of the unitary assembly 10, in the event the barrel 11 becomes defective, it may readily be replaced by a substitute barrel without any difficulty. Thus, a user may salvage the major part of the assembly, with a minimum of cost.
  • the body 58 of the barrel is generally cylindrical in shape, being formed of a unitary fabric section 59 bonded to a unitary grid section 61,
  • the opposed longitudinal edges of the body are spaced apart and are provided with solid rigidifying edge members 62 and 63.
  • the edge member 62 includes a longitudinally extending semi-cylindrical bead 64 while the opposite edge member includes a corresponding longitudinally extending recess 66.
  • a removable closure member 67 which may be planar or arcuate in shape includes a panel which like the body 58 is formed of a fabric section bonded to the grid section and which is provided along a longitudinal edge with a solid rigid edge member 68 having a bead 69 adapted to snugly engage in the recess 66 and having along the opposite edge a ridge member 70 having a recess 71 adapted to snugly receive the head 64.
  • a removable spring clamp 72 shaped substantially as shown, serves to secure the closure member 67 to the body.
  • the body 58 is secured to the end disc members 39 and 41 by screws, and one or more tie rods 73, similar to the tie rod 56, serve to clamp the body 58 to said end disc members 39 and 41, in the same manner, as hereinabove explained.
  • the tie rod 73 in this instance, is transversely arcuate in form, as illustrated,
  • FIGS. 6 through 8 wherein is shown another modified embodiment of my invention, the support and drive means for the barrel is substantially identical to that hereinbefore described and, accordingly, corresponding primed numerals will be employed to identify corresponding parts.
  • the vertical member 14' is formed in two sections connected by a hinge 74 so that the free end of the member 14' may be swung outwardly, as illustrated in FIG. 6, to afford clearance for the positioning of the barrel 76 hereinafter to be described.
  • a disc member 41 provided with an axial stub shaft 77 is rotatably supported in an aperture provided in the member 14' and is secured against axial displacement by a locking ring 78.
  • the disc member 41' and shaft 77 are axially bored to receive a conductor 36' which dangles into the barrel 76.
  • the disc member 39' similarly is provided with a bearing aperture rotatably receiving the stub shaft 79 and is provided on its periphery with gear teeth 81 adapted to mseh With the idler gear 26'.
  • a locking ring 82 in engagement with the stub shaft 74 affords means for preventing axial displacement of the disc member 39.
  • Said disc member is provided with a plurality of sockets 83. It will be noted that the disc members 39' and 41' constitute permanent parts of the support means 12, although each may be removed from the support means for replacement, if desired.
  • a locking bar 86 is pivotally secured to the lower end of the vertical member 13', as at 87, while its distal end may be bent in the form of a loop 88 to provide a shoulder cooperating with bayonet slot 89 in the vertical member 14, as illustrated clearly in FIGS. 6 and 7 to lock the barrel 76 in operative position.
  • the barrel, 76 includes a base 91 provided with a plurality of projections 84 adapted to engage in the recesses 83 provided in the disc member 39' to provide driving engagement for the barrel.
  • the barrel 76 includes top and intermediate annular rings 92 and 93, respectively, integrally formed with a handle portion 94.
  • the cylindrical wall 96 of the barrel is comprised of a woven fabric bonded to a rigidifying grid, similar to that hereinbefore described.
  • the barrel 76 is intended to be supported on the support means 12' in the manner illustrated in FIG. 6, the disc member 41' affording a closure member for the open end of the barrel.
  • the disc member 41' may be provided with a plurality of circumferentially spaced resilient clamping elements 97 or other suitable means which are adapted to engage the annular ring 92 of the barrel to secure the barrel to the disc member 41 for effective closure and proper alignment of the barrel in relation to the disc member 41'.
  • the entire assembly may be moved from an operative position on the plating tank to a place remote therefrom for loading of a batch of articles to be plated, similarly as in the first described embodiment.
  • the barrel 76 is easily removable from the supporting means 12 so that another similar barrel may be substituted therefor.
  • a barrel 76 may be readily removed from the support means, immediately after a plating interval as illustrated in FIG.
  • FIG. 9 illustrates another modified barrel construction in which the body 99 is cylindrical and is provided with a closed bottom 101.
  • the top of the barrel is open and is surrounded by an upper rim 102 which is recessed for about one-half of its diameter as at 105, to accommodate a bail 103 pivotally anchored in the recess.
  • the bail 103 when received in the recess 105 affords with the balancee of the rim 102 a substantially continuous planar end surface to engage and seal against the disc member 41, in the manner illustrated in FIG. 4.
  • intermediate reinforcing ribs may be provided on the barrel body 99.
  • a portable unitary assembly for use with an electroplating tank comprising, a support frame having a pair of spaced depending legs with one of said legs being fixed and the other hinged, a first disc member rotatably supported on said fixed leg, a second disc member rotatably supported on said hinged leg, said disc members being coaxially disposed when said leg members are in parallelism, a barrel having a closed end and an open end and adapted to contain articles to be plated, said barrel being removably supported between said disc members and in coaxial registration therewith with one of said disc members providing a closure for the open end of said barrel, said hinged leg being swingable out of parallelism to permit removal or insertion of the barrel between said legs.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
US632493A 1967-03-27 1967-03-27 Portable unitary electroplating assembly Expired - Lifetime US3498902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63249367A 1967-03-27 1967-03-27

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US632493A Expired - Lifetime US3498902A (en) 1967-03-27 1967-03-27 Portable unitary electroplating assembly

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US (1) US3498902A (fr)
CH (1) CH521450A (fr)
DE (1) DE1771035A1 (fr)
FR (1) FR1559409A (fr)
GB (1) GB1205484A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936985A (en) * 1975-02-20 1976-02-10 National Plastics & Plating Supply Co., Inc. Panel for electroplating barrel sidewall
US4014774A (en) * 1974-06-20 1977-03-29 Westlake Plastics Co. Plastic electroplating barrel with ribbed perforate modular panels
DE2748763A1 (de) * 1977-10-31 1979-05-03 Tscherwitschke Gmbh Richard Galvanisieraggregat mit wahlweise austauschbaren, ankuppelbaren trommeln
DE2923410A1 (de) * 1978-07-31 1980-02-21 Semi Alloys Inc Metallischer verschluss zur hermetischen abdichtung eines behaelters und verfahren zur herstellung des verschlusses
US4284481A (en) * 1978-07-31 1981-08-18 Norman Hascoe Method of fabricating a metallic hermetic sealing cover for a container
US6756027B2 (en) 2000-05-24 2004-06-29 Superior Graphite Co. Method of preparing graphite intercalation compounds and resultant products

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111101186B (zh) * 2020-02-11 2021-04-09 兰溪龙升装饰工艺品有限公司 一种五金零件加工用滚镀机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US199504A (en) * 1878-01-22 Improvement in japanning
US344503A (en) * 1886-06-29 Julius smith
US1018947A (en) * 1911-06-10 1912-02-27 Charles Louis Wall Churn.
US3008893A (en) * 1960-06-21 1961-11-14 Belke Mfg Co Electroplating barrel assemblies
US3244613A (en) * 1962-05-24 1966-04-05 Pamarco Inc Arrangement for suspending and rotating rollers in chrome plating baths for plating purposes
US3328278A (en) * 1964-12-11 1967-06-27 Daniels Plating Barrel & Suppl Plating apparatus with removable barrel
US3345282A (en) * 1964-08-10 1967-10-03 Carl W Jenks Portable barrel plating unit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US199504A (en) * 1878-01-22 Improvement in japanning
US344503A (en) * 1886-06-29 Julius smith
US1018947A (en) * 1911-06-10 1912-02-27 Charles Louis Wall Churn.
US3008893A (en) * 1960-06-21 1961-11-14 Belke Mfg Co Electroplating barrel assemblies
US3244613A (en) * 1962-05-24 1966-04-05 Pamarco Inc Arrangement for suspending and rotating rollers in chrome plating baths for plating purposes
US3345282A (en) * 1964-08-10 1967-10-03 Carl W Jenks Portable barrel plating unit
US3328278A (en) * 1964-12-11 1967-06-27 Daniels Plating Barrel & Suppl Plating apparatus with removable barrel

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014774A (en) * 1974-06-20 1977-03-29 Westlake Plastics Co. Plastic electroplating barrel with ribbed perforate modular panels
US3936985A (en) * 1975-02-20 1976-02-10 National Plastics & Plating Supply Co., Inc. Panel for electroplating barrel sidewall
DE2748763A1 (de) * 1977-10-31 1979-05-03 Tscherwitschke Gmbh Richard Galvanisieraggregat mit wahlweise austauschbaren, ankuppelbaren trommeln
DE2923410A1 (de) * 1978-07-31 1980-02-21 Semi Alloys Inc Metallischer verschluss zur hermetischen abdichtung eines behaelters und verfahren zur herstellung des verschlusses
US4284481A (en) * 1978-07-31 1981-08-18 Norman Hascoe Method of fabricating a metallic hermetic sealing cover for a container
US6756027B2 (en) 2000-05-24 2004-06-29 Superior Graphite Co. Method of preparing graphite intercalation compounds and resultant products

Also Published As

Publication number Publication date
FR1559409A (fr) 1969-03-07
CH521450A (de) 1972-04-15
GB1205484A (en) 1970-09-16
DE1771035A1 (de) 1972-01-05

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