EP0080211A1 - Dispositif automatique pour la charge et la décharge d'un tonneau de galvanisation - Google Patents

Dispositif automatique pour la charge et la décharge d'un tonneau de galvanisation Download PDF

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Publication number
EP0080211A1
EP0080211A1 EP82110877A EP82110877A EP0080211A1 EP 0080211 A1 EP0080211 A1 EP 0080211A1 EP 82110877 A EP82110877 A EP 82110877A EP 82110877 A EP82110877 A EP 82110877A EP 0080211 A1 EP0080211 A1 EP 0080211A1
Authority
EP
European Patent Office
Prior art keywords
basket
lid
fact
frame
workpieces
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.)
Withdrawn
Application number
EP82110877A
Other languages
German (de)
English (en)
Inventor
Francesco La Gala
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.)
GALA FRANCESCO
Original Assignee
GALA FRANCESCO
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 IT07214/81A external-priority patent/IT1221097B/it
Priority claimed from IT23724/82A external-priority patent/IT1152716B/it
Application filed by GALA FRANCESCO filed Critical GALA FRANCESCO
Publication of EP0080211A1 publication Critical patent/EP0080211A1/fr
Withdrawn legal-status Critical Current

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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 an automatic system of loading and unloading baskets for galvanic baths, providing an important technical progress in this field, as it solves many problems which hitherto rendered difficult, tiresome and even dangerous these operations.
  • metal articles and more particularly small articles are subjected to galvanic treatments such as nickeling, zinc-plating, blueing and many other similar treatments, by dipping them into a galvanic bath, closed in special foraminous boxes made of a material which cannot be attacked by the bath compositions, said boxes being rotated within the bath to attain a uniform deposition of the metal solution on the workpieces.
  • galvanic treatments such as nickeling, zinc-plating, blueing and many other similar treatments
  • the present invention solves these problems, eliminating all the drawbacks and disadvantages of the presently available systems, by an ingenious and original assembly of devices, rendering automatic all the above mentioned operations, attaining levels of performance and precision which were not expected in this industrial field.
  • the automatic loading and unloading system of the present invention substantially comprises a frame being the station where the operations are carried out, means for positioning and blocking the basket in the frame, means for releaising the closure devices of the basket lid, means for binding the lid to a pulling carriage movable on the frame, means for opening and closing said lid and means for the volumetric determination of the charge of workpieces in the basket.
  • Said basket in its turn has a support and control assembly, substantially comprising means for supporting the basket, a motor mounted cantilevered from the support means, actuating a gearing for the basket rotation, and means for recovering wear of said control gearing.
  • the loading and unloading station comprises a frame consisting of several uprights and crosspieces, forming two lateral assemblies where the mechanisms are arranged, acting on the basket coming from the galvanic baths and being placed at the center of the frame between the two lateral assemblies.
  • the frame comprises vertical uprights M , M ....M , longitudinal bars L l , L 2 ...L n and crosspieces T 1 , T 2 ...T n .
  • One of the lateral assemblies comprises the means for blocking the basket to the frame and the means for releasing the closure devices of the basket lid, while the other lateral assembly comprises the means for opening and closing the lid and to bind it to a carriage on which said means are mounted, said carriage with its movement removing the lid from the basket and placing it again on the basket, while in the central part of the frame there are the means for the self-centering positioning of the basket on its seat in the frame.
  • the basket control and support assembly comprises a sturdy upper beam, to which is attached the hook of the crane carrying the basket to the tanks of the galvanic baths, said beam being provided at both ends with a fork cooperating with the basket positioning means of the frame, and supporting at one side in a cantilevered fashion the motor controlling rotation of the basket through a set of gears meshing with one another and vertically arranged along one of the basket heads, supported by two vertical uprights and comprising also a device for recovering the gearing wear, while the lid has a system of engagement with the basket body, hindering penetration of workpieces in the lid external slots, that would lead soon to bulging and deformation of the lid, which would then have no more a perfect seal with consequent leakage of liquid and loss of workpieces.
  • the basket body has an almost pentagonal form determined by five longitudinal bars B l' B 2 , B 3' B 4 and B as its skeleton, between which the longitudinal faces 1, 2, 3 and 4 of foraminous material for the circulation of the bath liquids are extending.
  • the two basket heads are different, as the head where the basket rotation control is arranged, consists of an outer template 5 with a toothed disc 6 being the last gear of the driving train starting from the motor, while the opposite head consists of a simple closure disc 7.
  • the lid C of the basket has a number of features playing a fundamental role in the system operation.
  • the longitudinal lips of the basket mouth are different for obtaining a perfect seal of the closed lid, namely the closure or receiving lip 8 has a recess 9 where the front edge 10 of lid C is lodged, while the opposite lip 11, at which side the lid C is removed or placed, has an outer projection 12, on which the rear edge 13 of said lid is inserted, said rear edge 13 having a recess with a shape perfectly complementary to the outer projection 12.
  • the lid thickness there are long dead holes 14 for the insertion of three pins (to be described hereinafter) to bind the lid during the opening and closing stages.
  • the lid is provided on its upper surface with a projecting block 16 near the extraction side of the lid, acting as a shoulder for the closure stroke of the lid, while near its closure side there is the lid closure device, consisting of pincers 17 elastically urged to the open position and swinging on their pivots 18, but held closed by stop blocks 20.
  • the basket is supported by two vertical uprights 21, which are connected to the basket support telescopically, i.e. through a spring-loaded part 22 sliding inside them, the basket support being formed by an upper horizontal beam 23 having at each end a fork 24 provided with cylindrical pins 25 for selfcentering the assembly, as it will be apparent hereinafter.
  • the beam 23 supports in a cantilevered way the motor 26 controlling the basket rotation through a set of gears 27, 28 and 29, the latter meshing with the toothed disc 6 of the basket.
  • gears which are made of plastics like the basket in view of their dipping into the galvanic baths, undergo a certain wear, the telescopic connection between uprights 21 and beam 23 accomodates the progressive wear of said gears, keeping the lower gear 29 always meshing with the toothed disc 6.
  • the cantilevered arrangement of the motor 26 outside the basket is very useful, as it avoids that the motor is directly attacked by the bath vapours, when basket is dipped into it.
  • the central vertical uprights M 2 , M 3 , M 6 , M 7 of the frame have central intermediate crosspieces T 1 and T 2 supporting in a cantilevered way idle rollers 30 on which the basket is placed and can roll, so that the basket is safely positioned in the frame always at the same height in alignment with the devices for opening and closing the lid as provided by the system.
  • the upper crosspieces T3 and T 4 have trapezoidal plates 31 forming a self-centering saddle, on which are laying the cylindrical pins 25 of the forks 24 of the support beam 23 of the basket which is going to be placed exactly in a central position in the frame.
  • the frame lateral assembly on the said of closure of the lid (top portion of Figs. 1-2 and left side of Fig. 7) comprises a single concave wedge 101 controlled by a pneumatic or oil-hydraulic piston 102, adapted to effect closure of pincers 17 of the lid C and then opening of said lid during the pushing stage simply using the sliding on the two oblique planes 103 of said wedye 101.
  • the basket positioning is effected by a piston 106 which through rod 106' pushes an arm 107 upwardly hinged at X with respect to the center Y of the basket rotation, so that its contact point during rotation is tangent to the basket vertical axis.
  • a stop 108 On the outer disc 7 of the basket 6 there is a stop 108 that in any position acts as a push point during basket rotation.
  • the frame lateral assembly on the other side of the system (bottom position of Figs. 1-2 and right side of Fig. 7) comprises a carriage 37, sliding on the upper lateral crosspieces T 5 and T 6 through rolling bearings 38 and movable toward and away from the basket through a pneumatic cylinder 39 whose piston rod 40 is fixed to the longitudinal bar L 4 of the frame.
  • This carriage 37 is provided at the front edge with three pins 41, which are going to enter the dead holes 14 of the lid, and two vertical pneumatic cylinders 42 whose piston rods are locking the lid C during the opening and closure stages, non in a determined position but simply striking on its outer surface, finding a shoulder for pulling the lid during the opening stage in the stop blocks 104.
  • Fig. 2 it is to be noted that, after having advanced the carriage 37 to insert pins 41 into the lid C, the locking pistons 42 are positioned for its opening and the concave wedge 101, pushed by rod 105 of piston 102, closes again the pincers 17 and moves the lid until it rests against said carriage, which then is withdrawn and opens the basket lid. Finally the carriage 37 is provided with a further pneumatic cylinder 39 (see Fig. 7), whose piston rod moves the projecting block 16 during the lid closure stage.
  • the system of the present invention is completed by an automatic ancillary device loading the basket with volumetric determination of the charge of workpieces.
  • a device comprises a frame 44 for receiving a basin 45 having the shape of a funnel with top opening, provided with a vibrator 46 and a discharge door 47.
  • the basin 45 is also provided with a device for the volumetric determination of the charge, interupting the feed of workpieces to basin 45 when the preset volume is reached. With reference to Fig. 6, such volume is determined by measuring the charge level in the basin 45 with one or more magnetic sensors 109, placed inside the basin 45 at fixed positions.
  • the cylinder 102 pushes with its rod the block 101 and therefore the lid in its release position, in preparation to the complete opening of said lid (Fig. 2); this movement at the same time causes the complete insertion of pins 41 into holes 14 so that the lid is now in contact with carriage 37 and the vertical cylinders 42 push their rods against the lid surface, wholly locking it to the carriage.
  • the cylinder 106 locks it again and the basket may now be refilled with a new charge of workpieces to be processed, by means of the loading basin 45 loaded at the correct level with the intervention of the above described device for the volumetric determination of the charge.
  • the lid is now being closed, first by returning the carriage 37 toward the basket under the action of cylinder 39, then after withdrawal of the rods of cylinder 42, actuating cylinder 43, whose piston rod pushes the projecting block 16 and therefore the lid until pincers 17 are snap inserted and locked behind the stop blocks 20.
  • the lid is now closed and carriage 37 is now moved again backwards, piston rod of cylinder 43 and of cylinder 102 are withdrawn, so that the basket is now closed, free and loaded, ready for being raised by the crane and taken to the galvanic baths.

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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)
  • Sealing Of Jars (AREA)
EP82110877A 1981-11-24 1982-11-24 Dispositif automatique pour la charge et la décharge d'un tonneau de galvanisation Withdrawn EP0080211A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT721481 1981-11-24
IT07214/81A IT1221097B (it) 1981-11-24 1981-11-24 Sistema di carico e scarico automatico dei cesti per bagni galvanotecnici e relativo gruppo di comando e di supporto di tali cesti
IT2372482 1982-10-13
IT23724/82A IT1152716B (it) 1982-10-13 1982-10-13 Sistema perfezionato di carico e scarico automatico dei cesti per bagni galvanotecnici

Publications (1)

Publication Number Publication Date
EP0080211A1 true EP0080211A1 (fr) 1983-06-01

Family

ID=26325883

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82110877A Withdrawn EP0080211A1 (fr) 1981-11-24 1982-11-24 Dispositif automatique pour la charge et la décharge d'un tonneau de galvanisation

Country Status (1)

Country Link
EP (1) EP0080211A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108220944A (zh) * 2018-01-23 2018-06-29 重庆博昶电子科技有限公司 一种发黑处理设备及其处理方法
CN108220943A (zh) * 2018-01-23 2018-06-29 重庆博昶电子科技有限公司 一种可输送工件的发黑处理设备及其处理方法
CN111876818A (zh) * 2020-08-11 2020-11-03 湖南飞阳齿轮制造有限责任公司 一种高精密齿轮齿面镀锌设备及其镀锌方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2941656A (en) * 1958-05-05 1960-06-21 Udylite Corp Barrel with automatic door panel
DE2704568A1 (de) * 1976-02-10 1977-08-11 Upo Oy Anordnung zum oeffnen und schliessen einer rotierenden trommel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2941656A (en) * 1958-05-05 1960-06-21 Udylite Corp Barrel with automatic door panel
DE2704568A1 (de) * 1976-02-10 1977-08-11 Upo Oy Anordnung zum oeffnen und schliessen einer rotierenden trommel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108220944A (zh) * 2018-01-23 2018-06-29 重庆博昶电子科技有限公司 一种发黑处理设备及其处理方法
CN108220943A (zh) * 2018-01-23 2018-06-29 重庆博昶电子科技有限公司 一种可输送工件的发黑处理设备及其处理方法
CN108220943B (zh) * 2018-01-23 2024-02-02 重庆林鹏耐磨钢球制造有限公司 一种可输送工件的发黑处理设备及其处理方法
CN108220944B (zh) * 2018-01-23 2024-03-15 西安凯龙航空技术有限公司 一种发黑处理设备及其处理方法
CN111876818A (zh) * 2020-08-11 2020-11-03 湖南飞阳齿轮制造有限责任公司 一种高精密齿轮齿面镀锌设备及其镀锌方法

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Effective date: 19840511