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WO1997012080A1 - Systeme de panneaux pliants pour un tambour de placage - Google Patents

Systeme de panneaux pliants pour un tambour de placage Download PDF

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Publication number
WO1997012080A1
WO1997012080A1 PCT/US1996/015341 US9615341W WO9712080A1 WO 1997012080 A1 WO1997012080 A1 WO 1997012080A1 US 9615341 W US9615341 W US 9615341W WO 9712080 A1 WO9712080 A1 WO 9712080A1
Authority
WO
WIPO (PCT)
Prior art keywords
barrel
rib
perforated
ribs
base
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.)
Ceased
Application number
PCT/US1996/015341
Other languages
English (en)
Inventor
Stephen Gradowski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Whyco Chromium Co Inc
WHYCO CHROMIUM Co
Original Assignee
Whyco Chromium Co Inc
WHYCO CHROMIUM Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US08/534,446 external-priority patent/US5639306A/en
Priority claimed from US08/663,355 external-priority patent/US5651866A/en
Application filed by Whyco Chromium Co Inc, WHYCO CHROMIUM Co filed Critical Whyco Chromium Co Inc
Priority to JP9513587A priority Critical patent/JP2000506566A/ja
Priority to EP96933889A priority patent/EP0859878A4/fr
Publication of WO1997012080A1 publication Critical patent/WO1997012080A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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 present invention relates to barrels for holding parts during electroplating and, in particular, to barrel construction utilizing folding hinge panels and fusion welded joints.
  • Such barrels typically have six sides comprised of perforated rectangular panels, at least one of which may be removed to provide access to the interior of the drum for filling and removing parts.
  • the drums are rotated along an axis while being at least partially immersed in a bath or solution for elertroplating or otherwise chemically treating parts.
  • the individual metal parts within the barrel are retained within the barrel (due to the perforation size being less than the part size) and are simultaneously exposed to the electroplating solution which enters through the perforations in the panels.
  • Such barrels are normally removable from the plating tank in which they operate for loading and unloading the parts.
  • barrels It is not unusual for such barrels to be used for temporary part storage prior to or subsequent to the plating treatment in the bath.
  • the barrels may be moved around the plating facility, for example, by forklift truck, and may be stacked on shelving or on top of one another.
  • the barrels are subject to rough handling and the panels making up the barrel often impact against other hard objects. Since it is generally necessary to utilize non-electrically conductive materials for the panels, e.g., plastics or other non-metallic materials, and the brittleness which occurs with age and exposure to plating solutions, the panels are often weak and may easily sustain damage.
  • 3,953,633 also discloses panels having a grid-like arrangement of ribs.
  • U.S. Patent Nos. 4,422,774 and 4,162,951 disclose other plating barrel styles utilizing grid-like ribs on the side panels. While such rectangular grid structures partially fulfill a long felt need for improved panel structures, they do not provide sufficient resistance to rough handling typically encountered in plating facilities. As a result, alternative panels for barrels have used thick panel sides for increased resistance to damage.
  • the above and other objects and advantages, which will be apparent to those skilled in the art, are achieved in the present invention which is directed to a barrel for chemically treating parts having a perforated side panel for retaining the parts within the barrel while permitting passage of a bath solution into the barrel.
  • the plating barrel is constructed by machining all the side panels out of one continuous sheet of material, with an integral V-shaped notch between each side panel. Enough material is left at the bottom of each notch to form a flexible hinge. The sheet is then folded at each hinge to form the shape of the barrel, and the -
  • the panel comprises a base and a plurality of perforated sections on the base, with each perforated section containing a plurality of openings in the base for passage of the solution.
  • a plurality of ribs extends outwardly from one surface of the base, wherein the ribs separate each of the perforated sections from an adjacent perforated section.
  • the ribs are comprised of individual rib segments, with each rib segment separating one perforated section from an adjacent perforated section. Each of the rib segments intersect at a point with at least one other rib segment between adjacent perforated sections.
  • the terminating rib segment being non-colinearly oriented with respect to other intersecting ribs to provide bracing for another intersecting rib segment.
  • three of the rib segments intersect at the intersection point between adjacent perforated panel sections.
  • two of the intersecting rib segments are colinearly oriented and a third rib segment is non-colinearly oriented with respect to the first two rib segments.
  • the perforated panel sections may be rectilinear in shape such that no more than three of the rib segments intersect at an intersection point between adjacent perforated panel sections.
  • three of the rib segments intersect at the point, with two of the intersecting rib segments being colinearly oriented and the third rib segment being non-colinearly oriented with respect to the first two rib segments.
  • none of the intersecting rib segments are colinearly oriented with respect to the other two rib segments.
  • the perforated panel sections may be circular or hexagonal in shape, or a mixture of alternating square and octagonal shapes, such that no more than three of the rib segments intersect at an intersection point between adjacent perforated panel sections.
  • the barrel panel preferably comprises a chemically inert material.
  • the side of the base opposite the ribs may be substantially smooth or may be uneven.
  • Fig. 1 is a perspective view of a plating barrel incorporating the panels of the present invention utilizing a rectangular rib structure.
  • Fig. 2 is a cross-sectional end view of the plating barrel of Fig. 1 immersed in a plating bath within a plating tank.
  • Fig. 3 is a top plan view of one of the panels of the present invention utilizing a rectangular rib structure.
  • Fig. 4 is an enlargement of a portion of the panel of Fig. 3.
  • Fig. 5 is an elevational view of a section of the panel portion shown in Fig. 4.
  • Fig. 6 is a perspective view of a portion of the panel of Fig. 3.
  • Fig. 7 is a cross-sectional perspective view of a portion of the panel of Fig. 3.
  • Fig. 8 is a top plan view of a portion of an alternate panel embodiment of the present invention utilizing a circular rib structure.
  • Fig. 9 is a top plan view of a portion of an another alternate panel embodiment of the present invention utilizing hexagonal rib structure.
  • Fig. 10 is a top plan view of a portion of an another alternate panel embodiment of the present invention utilizing a mixed square and octagonal rib structure.
  • Fig. 1 1 is an elevational view of a section of an alternate embodiment of the panel portion shown in Fig. 4.
  • Fig. 12 is a top plan view of the present invention illustrating the continuous sheet panel arrangement unfolded in a horizontal position.
  • Fig. 13 is a side elevational view illustrating a 90-degree V-shaped notch in between each of the side panels .
  • Fig. 14 is a greatly enlarged view of the V-shaped notch area circled in Fig.
  • Fig. 15 is a top plan view of the present invention in the folded configuration and illustrating a 30 degree fusion welded angle between panels in the folded configuration.
  • Fig. 16 is a greatly enlarged view of the area circled in Fig. 15 illustrating a fusion welded joint.
  • FIG. 1 A plating barrel 10 constructed in accordance with the present invention is shown in Fig. 1.
  • Barrel 10 includes circular end caps or plates 12, 14, having axially located center openings or holes 16, 18, respectively, for mounting onto the suspension and drive mechanism in the plating tank.
  • Extending longitudinally between the end plates are a plurality of perforated panels configured in accordance with the present invention.
  • Such panels include a fixed panel 20 as well as a removable access panel 24, each employing the staggered rib structure surrounding a plurality of openings or perforations, which will be explained in more detail below.
  • Access panel 24, which may be removed for loading or unloading parts in to the barrel, has mating edges 26, 28 on its longitudinal sides. Access panel edge 28 mates with access frame member 30 which is secured at each end to caps 12 and 14.
  • Access door 24 also includes support members 34, 36 which run along the longitudinal edges. As shown, the interior surface 22 of the panels is smooth (except for the openings or perforations in the panel), i.e., there are no strengthening ribs extending inward into the plating barrel as the panels are mounted thereon.
  • plating barrel 10 is shown mounted within plating tank 50 and almost full immersed in plating bath solution 52.
  • bath or “solution” refers to any elertroplating bath or other chemical treatment solutions which are well known in the art.
  • plating solutions which may be used with the present invention include the following bath formulations and operating conditions:
  • compositions may also be employed:
  • Barrel 10 is mounted to the drive mechanism (not shown) for rotation in the direction shown by arrow 48.
  • Panels 20, 20' may be welded or maybe mounted to fixed panel support members 38 by any well known means utilized in the prior art for such construction.
  • Access frame panel members 30, 32 receive access panel 24 and complete the support members for the plating barrel.
  • access panel 24 is secured in place on the barrel by a spring closure 40 which has opposite closure ends 42,44 which wrap around and grip support members 32 and 30, respectively.
  • a handle end 46 extending from spring closure end 42 is provided to remove the spring and remove the access panel.
  • Panel 20' has longitudinal edges 56 and ends 58, and is preferably made of a tough, impact-resistant polymer, for example, stress relieved polypropylene.
  • panel 20' Within panel 20' are plurality of rectangular sections 54 bounded by strengthening ribs, each of which sections 54 contain a plurality of small openings or perforations 80 which permit the plating bath or solution to enter the plating barrel during processing without allowing the parts to fall out.
  • openings 80 are shown as having circular configurations, any known or desired configuration may be utilized for these openings.
  • the rectangular sections 54 are bounded by longitudinal strengthening ribs 60 and ⁇ oss member strengthening ribs 70.
  • longitudinal ribs 60 intersect with cross ribs 70 in an intermediate portion of each rectangular section, preferably at a mid-point.
  • the cross ribs 70 do not continue beyond the longitudinal ribs 60 with which they intersect, but instead terminate to provide bracing for and strengthening of the longitudinal ribs.
  • This construction is in contrast to the structure of the prior art in which the ⁇ oss ribs extend beyond the longitudinal ribs with which they intersect.
  • the net effect of the panel rib configuration of the present invention is to strengthen the longitudinal ribs at the points at which they are the weakest, i.e., mid-way between the ends of the individual sections of perforations which the ribs surround and form.
  • This unique construction permits the base of the panel containing openings 80 to be relatively thin while retaining the advantages of high toughness and durability as the ribs are imparted in the course of movement around the plating facility. Since polymers such as polypropylene typically get brittle with time and as a result of contact with plating solutions, the improved strength is even more important as the barrels age.
  • the aspect ratio of each of the rectangular sections i.e., the ratio of length to width, is greater than one (1 ).
  • an aspect ratio of one a perfect square can also be used provided the cross-ribs are staggered as described above.
  • each of the openings may have a diameter in the range of 5/64 to 15/64 in. (2.0 - 6.0 mm) and a length (base thickness) of approximately 3/16 to 3/8 in. (4.8 - 9.5 mm).
  • Total panel thickness (rib plus base thickness) may preferably range from 3/8 to 1 in. (9.5 - 25.4 mm).
  • a panel may have a of length 42 in. (107 cm), width 8 in. (20.3 cm), rectangular section width 15/16 in. (23.8 mm), rectangular section length 2-5/16 in. (58.7 mm), section rib height 9/16 in. (14.3 mm), rib thickness 3/16 in. (4.8 mm), opening diameter 5/64 in. (2.0 mm), base thickness 3/16 in. (4.8 mm) and 27% panel area perforation.
  • Panels made in accordance with the present invention may provide a 10-30 percent increase in plating efficiency and a 30-60 percent reduction in plating solution drag out.
  • Panels configured in accordance with the present invention may be manufactured by any known means, for example, machining from sections of polypropylene having thickness equal to the total thickness of the panel (base thickness plus rib height). Alternatively, these panels may be manufactured by injection molding, or manufactured by a combination of the aforementioned processes. Preferably, each panel is of integral construction, i.e., made from a single piece of section of starting material, although multi-piece construction may also be utilized. The panel configuration of the present invention may also be utilized in a variety of styles and sizes of plating barrels.
  • rib configuration of the present invention is shown in Figs. 8, 9 and 10.
  • Fig. 8 there is shown a portion of panel 20" having a plurality of circular sections 90 formed by ribs 92.
  • the circular sections 90 are arranged in what is normally considered to be a "close packed” configuration.
  • each circular section there is a base containing openings (not shown) corresponding to base 62 and openings 80 described previously.
  • ribs 92 intersect such that no one of the ribs extends straight beyond the point of intersection with the other two (2) ribs.
  • Fig. 9 shows panel 20'" portion having a plurality of hexagonal sections 94 formed by ribs 96.
  • the hexagonal sections 96 are also arranged in what is normally considered to be a "close packed” configuration. Again, within each hexagonal section 94 there is a base containing openings (not shown) corresponding to base 62 and openings 80 described previously. As with the fields of the circular sections, away from panel edges 56'", 58'" ribs 96 intersect each of the other two (2) ribs such that no one of the ribs extends straight beyond the point of intersection.
  • Rib segments 102 form the boundaries of the square and octagonal sections which contain openings (not shown) corresponding to base 62 and openings 80 described previously.
  • openings not shown
  • away from panel edges 56"", 58"" ribs 102 intersect each of the other two (2) ribs such that no one of the ribs extends beyond the point of intersection in a straight line.
  • a mixture of one or more of the rectangular, square, hexagonal, octagonal or circular perforated panel section configurations may be used in a single panel.
  • Other sertion configurations bounded by ribs may be employed, provided that at least one of the ribs does not extend in a straight line beyond the point of intersection with other section-forming ribs.
  • a panel constructed in accordance with the present invention may have a substantially smooth inner surface (Fig. 5), the panel may also be constructed with a dimpled, scored, striated or otherwise uneven surface to prevent parts from sticking to the panels during treatment. Such sticking tends to occur when the parts being plated or otherwise treated have flat surfaces.
  • An embodiment of such inner surface is depicted in Fig. 1 1 in which panel 20 is shown having an uneven surface 22'"".
  • the plating barrel of Fig. 15 is formed from a continuous sheet of material 200, with plastic being preferred.
  • the sheet 200 consists of a plurality of side panels 202, 202' connerted by a flexible hinge formed from an integral notch 204 between adjacent side panels as illustrated in Figs. 12-13, with a V-shaped notch being preferred.
  • the number side panels of the plating barrel formed from the continuous sheet may vary, with five being preferred.
  • the plating barrel used for part plating described above may have the panel perforations as described above, other panel perforations or any combination of panels with and without perforations.
  • the connecting hinges are formed with a notch having an angle ⁇ between adjacent panels.
  • the angle a is preferably 90 degrees, but could vary depending upon the thickness of the panels and the width of the notch opening.
  • Sufficient material is left at the bottom of each notch 204 to form a flexible hinge 205.
  • the sheet is folded at each hinge 205 into a barrel shape illustrated in Fig. 15 with the resulting notches having angle Of' in between the adjacent side panels.
  • the angle «' the of assembled barrel is preferably 30 degrees, however, «' may vary as the number of side panels, the dimensions of the side panels and the notch widths vary.
  • the notch 204 is reinforced or filled by a similar or compatible material, such as extruded polypropylene, with a fusion welder such as the MEC 342 Extrusion Welder manufactured by Wegner North America, Inc. of Burr Ridge, IL.
  • a fusion welder such as the MEC 342 Extrusion Welder manufactured by Wegner North America, Inc. of Burr Ridge, IL.
  • the welded hinge 206 is illustrated in Fig. 16.
  • the plating barrel of Fig. 15 is assembled as follows: a continuous sheet of material shown in Figs. 12 and 13 is folded to the configuration of Fig. 15; closure ends 207 are placed on each side panel end 208; a closure panel 209 is connected in between the closure ends 207 and each notch 204 is fusion welded.
  • the present invention provides improved strength in connection with the rib configuration disclosed herein, which enables plating barrels incorporating panels made with such rib configurations to more readily withstand impact damage in plant environments. Additionally, increased strength permits a thinner base to be employed, and, consequently, the lower volume achieved in the holes forming the panel perforations significantly reduces waste an potential pollution due lo plating solution drag out.

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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)

Abstract

La présente invention concerne un tambour destiné au traitement chimique de pièces et comportant un système de panneaux qui retiennent ces pièces à l'intérieur du tambour (10) tout en y permettant la pénétration d'une solution servant de bain. Ce système de panneaux comprend plusieurs panneaux latéraux (202, 202') formés à partir d'une tôle continue (200), avec des charnières intégrées pour relier les panneaux. Ces charnières (205) comportent une rainure (204) qui a un centre ainsi qu'un premier et un deuxième côtés dont l'épaisseur est supérieure à celle du centre, et une matière fondue dans la rainure, qu'elle remplit. Les panneaux latéraux comportent une base et plusieurs sections perforées sur la base, chaque section perforée comportant plusieurs ouvertures dans la base pour le passage de la solution. Plusieurs nervures s'étendent vers l'extérieur à partir d'une surface de la base, séparant les sections perforées les unes des autres. Ces nervures sont constituées par des segments dont chacun sépare une section perforée d'une section perforée voisine. Chacun des segments de nervures a une intersection, en un point, avec au moins un autre segment de nervure, entre des sections perforées voisines. A chacun des points d'intersection, au moins un segment de nervure se termine avec d'autres, le segment de nervure qui se termine n'étant pas orienté de manière colinéaire par rapport à d'autres nervures qui forment une intersection, pour renforcer un autre segment de nervure formant une intersection. De préférence, trois des segments de nervures se rencontrent en un point d'intersection entre des sections de panneaux voisines. Les sections de panneaux perforés peuvent être rectilignes, circulaires ou hexagonales.
PCT/US1996/015341 1995-09-27 1996-09-25 Systeme de panneaux pliants pour un tambour de placage Ceased WO1997012080A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP9513587A JP2000506566A (ja) 1995-09-27 1996-09-25 めっきバレルのための折畳み可能なパネル配列
EP96933889A EP0859878A4 (fr) 1995-09-27 1996-09-25 Systeme de panneaux pliants pour un tambour de placage

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/534,446 US5639306A (en) 1995-09-27 1995-09-27 Barrel for chemically treating parts
US08/663,355 1996-06-13
US08/534,446 1996-06-13
US08/663,355 US5651866A (en) 1996-06-13 1996-06-13 Foldable panel arrangement for plating barrel

Publications (1)

Publication Number Publication Date
WO1997012080A1 true WO1997012080A1 (fr) 1997-04-03

Family

ID=27064463

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/015341 Ceased WO1997012080A1 (fr) 1995-09-27 1996-09-25 Systeme de panneaux pliants pour un tambour de placage

Country Status (4)

Country Link
EP (1) EP0859878A4 (fr)
JP (1) JP2000506566A (fr)
CN (1) CN1202208A (fr)
WO (1) WO1997012080A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000066814A1 (fr) * 1999-04-28 2000-11-09 Richard Tscherwitschke Gmbh Tambour de galvanoplastie
EP3986593A4 (fr) * 2019-06-20 2023-06-14 NP Innovation AB Panneau filtrant pour filtres à tambour

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6767405B2 (en) * 2002-07-10 2004-07-27 Carmeda Ab Apparatus and process for coating articles
US8685233B2 (en) * 2006-08-22 2014-04-01 Dork Ketal Chemicals (I) Private Limited Method of removal of calcium from hydrocarbon feedstock
JP5878957B2 (ja) * 2014-07-22 2016-03-08 株式会社ベイテックジャパン めっき用バレル
CN104313673A (zh) * 2014-10-23 2015-01-28 杭州沃丰过滤设备有限公司 一种组装式全网面滚筒
CN104499036A (zh) * 2014-11-14 2015-04-08 无锡信大气象传感网科技有限公司 电镀滚筒
CN105200502B (zh) * 2015-10-08 2017-09-19 江苏宏联环保科技有限公司 防堵塞电镀滚筒
CN105200504A (zh) * 2015-10-08 2015-12-30 江苏宏联环保科技有限公司 蜂窝状滤孔的电镀滚筒
CN110280440A (zh) * 2019-07-23 2019-09-27 通海云石工贸有限公司 钢结构扣接件生产涂料装置

Citations (3)

* 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
US3953633A (en) * 1974-06-20 1976-04-27 Westlake Plastics Company Plastic electroplating barrel with ribbed perforate modular panels
US4401542A (en) * 1981-05-28 1983-08-30 The Harshaw Chemical Company Metal finishing barrel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953633A (en) * 1974-06-20 1976-04-27 Westlake Plastics Company 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
US4401542A (en) * 1981-05-28 1983-08-30 The Harshaw Chemical Company Metal finishing barrel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0859878A4 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000066814A1 (fr) * 1999-04-28 2000-11-09 Richard Tscherwitschke Gmbh Tambour de galvanoplastie
US6702932B1 (en) 1999-04-28 2004-03-09 Richard Tscherwitschke Gmbh Electroplating barrel
EP3986593A4 (fr) * 2019-06-20 2023-06-14 NP Innovation AB Panneau filtrant pour filtres à tambour
US12128335B2 (en) 2019-06-20 2024-10-29 N P Innovation Ab Filter panel for drum filters

Also Published As

Publication number Publication date
EP0859878A4 (fr) 2000-06-28
CN1202208A (zh) 1998-12-16
EP0859878A1 (fr) 1998-08-26
JP2000506566A (ja) 2000-05-30

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