DEN0008616MA - - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

Registration date: March 12, 1954. Announced on October 25, 1956

GERMAN PATENT OFFICE

The invention relates to. a, uf a device for treating the surface of objects of metal or other materials in one or more 'treatment baths', whereby limbs to support and move the objects corresponding to a predetermined work cycle are moved along a guide device. In such devices, e.g. B. in electroplating devices, it is common practice to attach the support members for the workpieces by means of a rope, a chain or the like. To connect to each other move the workpieces at the same time at a speed that necessarily follows the longest treatment time of the individual workpieces directed to a specific handling station. In this method, therefore, one is rigid Effective control required, in known devices of the type described in more detail above includes the guideway, "also in the vertical Direction descending and ascending sections, in order to. allow a support limb in reaching, vain such. Section together with the. attached or suspended workpieces in a treatment bath immersed or from "a treatment bath is lifted out. It is also an institution

ffl'9 659/426

N 8616 VI / 48 a

known, at which different treatment stations, are summarized in. Groups., wherein

, each group is assigned a special guideway is that makes it possible with the cheapest possible. Speed of movement of the drive chain to work. The known devices described all show a complicated one Structure from the drive 'of the movable. Parts stems from; at the establishment

ίο of the kind mentioned last is needed still special means, which have the task of removing the workpiece © from a group of. Treat.luingsstation.en to be promoted to the next group. Furthermore, an electroplating device is known in which the support members for the Workpieces are equipped with levers that can be rotated in a vertical plane and at the same time along a closed path. the. Treatment stations are guided along so · that the workpieces by a pivoting movement of the Levers are introduced into the treatment baths or can be lifted out of these. The construction of such a. Establishment is obvious complicated, and; it has those associated with the use of a simultaneous drive Disadvantage.

The invention provides a device of the type specified above, in which the. disadvantage the previously known devices are avoided and. which anyway, a relatively one. multiple construction. For this purpose, in the device according to the invention each of the links a carriage, with one for Drive serving electric motor, a suspension frame to support the to be treated Objects as well as interacting with the guide device, the energy supply to the electric motor effecting means. Slide each support link, its own. Having drive motor, it becomes possible to place the support parts at different stations along the guideway different speeds, but care should be taken that the Distance between adjacent support members not less than a certain minimum distance The movements of the individual support members can be chosen in this way that each workpiece during: the desired time at the relevant treatment ^ - · Station, remains to undergo special treatment, so> that the treatment time provided for another workpiece is not affected will.

In the inventive. Device are the. Electric motors, supplied with current by: current collector ¹ and electrically conductive contact strips, which are laid along the guide track, the contact strips having different voltages at different points along the guide track. In the device according to the invention, the means cooperating with the guide device comprise separate lines which are supported by the guide device and. to electrical voltage sources as well as '. ,: 'on on. The pantographs attached to the wagon are connected to the: on the wagon; to supply electric current provided to electric motors, the electric voltage of the voltage sources being different at different stations along the guide device. In this way, I let the device operate fully automatically, that is, according to a predetermined schedule.

The device according to the invention is further characterized in that the guide means. device comprises a fixed endless guide track, which are side by side at different heights arranged containers is arranged, wherein above each of the partition walls between the. Containers a, higher lying section: the guideway lies. By suitable choice of height differences the guideway on these partitions, d. H. on - the walls of the liquid container it possible that of a support member to immerse the workpieces carried with them in the associated liquid bath or to lift them out of the bath, without the need to use special facilities. Neither the guideway the part of a supporting member that interacts with it is still in contact with the bath fluid in touch.

In one embodiment of the device according to the invention, the projection forms of the mutually Associated portions of the guide rail an endless curve, wherein the guide track comprises a substantially straight, horizontal sections that various into at least two ¹ -denen altitudes are arranged, and provided between these sections, the substantial straight, vertical sections such that. Adjacent sections of the guideway enclosing an angle are connected to one another by a bay piece. Furthermore, "horizontal" sections of the guideway are also understood to mean those sections which have very small dimensions in the horizontal direction, ie those in which the treatment time provided for the workpiece is very short, so that the longitudinal dimension of the bath is small.

In another embodiment of the invention. Device forms the projection of the interconnected sections of the Guideway an endless curve ·, the guideway essentially, straight, - horizontal Includes sections which are arranged in at least two different elevations, as well essentially straight :, vertical sections :, where each other at an angle enclosing adjacent sections of the guide track by rotatable supported, rotary switch-like sections are connected to one another, such that a support member from a section of the guideway! on an adjacent section of the guideway can get. In this way, bends in the guideway can be avoided,

"609 659/426

N 8616 VI / 48 a

the guideway then only from straight lines Sections with intermediate turnout-like ones Transitions need to exist. As a result, the .Guide track can be economically run favorable conditions, and interact with the guideway Parts of the support members can be of simpler construction.

The invention is illustrated below with reference

ίο schematic drawings of several exemplary embodiments en explained in more detail.

Abb ·, ι. is a cross section along the line II in Figure 2 and shows the invention ¹ device in which the guide track has a substantially hexagonal cross-section and wherein the straight horizontal and vertical portions of the web interconnected by curved sections.

Fig. Ί a shows on a larger scale 'details of a support member;

Fig. 2 is a. Ground plan of the one shown in Fig. 1 Contraption;

. Fig. 3 is a cross-section along line III in Fig '. 2; ■

Fig '. 4 shows a circuit diagram for an automatically operated plant;

Fig. 5 is a schematic representation of a Another embodiment of the inventive device, in which the guide track a essentially C-shaped. Has cross-section and from rectilinear horizontal and vertical There are sections that are created by turning points similar to! Transitions! connected with each other are;

Figure 6 shows a side view of a support member as used in the embodiment shown in Figure 5; the guideway is shown here i, m section; Fig. 7 is a side view of the Unterstützuingsgliedes, wherein the guide web opposite commanding shown in Fig was tilted 90 ⁰ 6. the lower part of the electric motor used for propulsion is omitted here;

Fig. 8 shows a cross section of a twistable, -like executed transition between a horizontal and a vertical section of the Guideway;

Fig. 9 shows the one in Fig '. 8 transition shown in longitudinal section.

Figs. 1 to 3 show a device for electroplating workpieces on support members ι are suspended or attached to them, in which these support members via a removal or loading station 2 along a number of treatment stations, move ,, where it z. B. to. bathrooms arranged one behind the other for cleaning, rinsing, Electroplating, rinsing, polishing and rinsing as well as a drying oven; the treatment stations are shown in Fig. 2 by the Reference numerals 3 to 9, Da, each support member with its own drive mechanism is equipped in the form of an electric motor 10 (Fig. ι a), each support member can move at a variable speed along the guide track 11 ,. To this Purpose, the motor 10 drives a drive roller 13 via a gear (not shown), which together, with a group of guide rollers 14 the guideway 11 with. Using strong springs (not shown) includes.

The guide track 11 (Fig. 2 and 3) is designed to be stationary and has. Sections n _a , "which are arranged at finger height as the sections Ho, and, these sections are connected to one another by" vertical sections ". The bay sections ii _rf connecting the vertical and horizontal sections of the guideway are kept as small as it is is possible without hindering the work of the rollers 13 and 14, and the length measurement of the movement path is made as short as possible. As can be seen from Figs. a section n _{a of} the guide track, which is arranged at a lower height, the length dimension of this section ' n _a in the direction of the guide track / is smaller than the length of the bath 3. In the illustrated embodiment, the height difference between the sections H ₀ and ii _{& selected} so that a workpiece suspended from or attached to a support member during the movement of the support member The support member is lifted out of a bath along the guide track, passed over the edge of the bath container and, if necessary, immersed in another bath. In this way it is possible to do without complicated, heavy supports; which would make it necessary to provide lifting devices by means of which the entire guide track or part of it can be moved in the vertical direction. -

In order to be able to subject the workpiece to a special treatment, it is of course possible to the concerned. Sections n ,, compared to To give the illustration a greater length in order to lift the workpiece further, so that a certain section of the web in another. The floor of the factory building is located in which facilities are provided for such special treatment.

The guideway can, according to Fig. 1 a, a Have cross-section in the form of a regular hexagon. The flat / side surfaces of the guideway can then serve various purposes. In order to prevent the support members from moving relative to the axis 15 of the guideway twist, you can use the surfaces 16 and 17 as running surfaces for the rollers 13 and 14, while the guideway is supported, for example, on the surface 18, ·;

The lines for supplying electricity to the electric motors. 10 are attached to the surface i5 _{a of the} guideway; they are isolated from the guideway and parallel to each other and parallel

, 609 659/426

N8616 Vl / 48a

arranged to the direction of the axis 15. In your illustrated embodiment there are three. Lines 19 are provided, which are supported by insulation. The required control ^{1 of} the separately driven support members can be made possible by interrupting the mentioned lines at suitable points and providing switches at these points, as well as by the. Lines on suitable. Points electricity supplies. Furthermore, the guideway consists of separate; rectilinear, sections as well as curved, sections where the relevant. Lines are arranged in such a way that the lines are connected to one another when the separate components are joined together, in this way it is possible to change the course of the guideway in a relatively simple manner when other treatment baths are used or if, other height differences are provided, should :.

A suitable arrangement of the line 20 for the current used for electroplating can be achieved if, one, this line * is isolated from the guideway and approximately at the same height as the edge 21 of the galvanic. Bath 5 (Fig. 3) supported, In the vicinity of an end wall, this bath, the line 20 can have a, vertical, section 2o _a (Fig. 3). In this way it is possible to put the workpiece on the support member under tension before it is immersed in the bath liquid. If a. Moving the support member along this bath, a second brush holder 22 attached to the support member is connected to the line 20 via the associated contact brushes, so that the electroplating current can be fed to the workpieces via a flexible cable 23 and a suspension frame 24. The frame 24 is with the interposition of an iso'-Heren. Hinge 25 attached to a horizontal arm 26 of the support member 1 so that the frame with the workpieces can always assume a vertical position when the support member moves, the arm 26 constantly maintaining its horizontal position. At the removal and loading station 2, the frame is together with the. treated workpieces are removed from the arm 26 and replaced by a new frame loaded with parts to be treated.

Fig. 4 shows schematically a circuit by means of which the speed of movement of each individual support member can be regulated. The electric motor 10 is a direct current motor, which was chosen because of its favorable operating characteristics and the availability of direct current. The power supply comprises two bus bars 117 and 118 and two each self-contained rails, 119 and 120 for guiding the support members ¹ 1, wherein said guide rails are divided by the Führüngsrollen 14 of the support members to be bridged Isolationszwischenstlicke into sections. From the 220 volt network 121, 122, the rails 117 and 118 and, the sections 119 and. 120 of the guide rails are supplied ^{with a DC voltage of 42Vo 1} It via a control transformer 123 and a rectifier arrangement 124. Sections 125 and. 126 of the guide rails are supplied from the 220 volt network via a control transformer 127 and a rectifier arrangement 128 with a DC voltage of 6VoIt. The guide rails are further subdivided into sections 129 to 143, with sections 131 and 143 adjoining each other. connect sections 119 and 120, respectively. The sections can be connected to one another and / or to the line rails 117 and 118 by cross connections 144 to 158; this is done using a timer 159, which is set to about 1 minute 8 &, a pole reversing switch 160 and a switch 161, which turns on the pole reversing switch as soon as section 130 has a positive polarity with respect to the voltage in section 40.

A moving in the manner described Support member, i, that runs from left to right according to Fig. 5, moves at one speed of 10 cm / s along section 120, with a speed of 1 cm / s along the section 126 and at a speed of .10 cm / s along section 132; then comes this Support member on section 133 comes to a stop, moving at a speed of 10 cm / s along section 134 stands up the section 135 still, moves.sich at a speed from ι ο cm / s along the section 136, is on the section. 137 still, moves at a speed of 10 cm / s on the section 138, moves at a speed from. 10 cm / s on the section: 140 back and forth. here, moves again at a speed of ι ο · cm / s along the section 141, is on the Section 142 is still and moving, eventually with a speed of 10 cm / s along the section 143 connected to section 120 is; the sections 131 and 119 connected with each other.

The workflow described, which applies to a specific series ¹ of treatments, can: be modified in a simple manner. After the setting has been made, each support member, together with the suspension frame 24 and the associated workpieces, is automatically placed in the correct one. Way along the treatment stations 3 to 8, with an operator only having to make handouts at the removal and loading stations 2 and 9).

Fig. 5 is a schematic representation of another. Embodiment of the invention Contraption; in, this figure are those parts that correspond to the parts of the just described According to the exemplary embodiment, identified by the same reference numerals. The endless one Guide track 11 'was cut at a certain point and for reasons of German

609 '659/426

N8616 VI / 48 a

possibility in the Zaichen level, whereby the points I and II of the guideway correspond to each other. The ones with the. Support members, connected and the workpieces bearing. Racks are denoted by the letters A through K. The guide track ii 'has a, C-shaped, transverse,. section (Fig. 6) and comprises only straight horizontal sections ii /, ii _ft 'and straight vertical sections ii /. Two at a time

ίο each other at an angle disposed adjacent sections I Ij / C and ¹¹ siftd interconnected by rotating soft similarly executed transitions n _e; Details of these transitions are in the. Fig. 8 and 9 shown. Man. seen from Fig. 5 that the device comprises a lower horizontal section 11 / comprises, having such a length that may be located in this section at the same time a plurality of support members, so that the corresponding ^1. Racks C ₁ D ₁ E with the workpieces at the same time in one and the same. Bathroom hanging. The support members carrying the workpieces B ₁ E and / are each located in one of the transitions 11 _e , which are designed in a manner similar to turning points. The guideway also includes a lower horizontal section 11 / of. shorter length, on which there is only one support member that carries the workpiece F. Furthermore, the guide track has sections of as short a length as possible in the direction of the movement of the support members, these sections being intended for very short treatment times / for the workpieces; they are located at the points indicated by the workpieces G ₁ H ₁ I and K , moving here, the support members only move along the associated, straight, vertical sections 11 / up and down.

A device of the type just described offers the advantage that the length dimension of the device can be shorter than the previous one described device, while at the same time making the device as simple as possible, since only straight sections of the guideway need to be executed, Both of the embodiments described can be expanded as required in a simple manner by one, a section of the guideway, added, so that one other treatment methods for the Workpieces: can provide. It is also possible,

50, the device according to the invention for a treatment method to set up, which differs significantly from that described with reference to Figs. 1 to 3. Treatment method differs. For example, the treatment times for the workpieces in the different, baths can be changed independently of each other, and there can be different types Deposits on the workpieces are generated.

Figures 6 and 7 show a support link. 1 ', the one with a guideway. 11 'of C-shaped cross-section can be used, in this case are used to power the Drive motor '10' four lines 19 'are provided.

The motor drives a gear 62 which is connected to a rack arranged along the guide track n ' 63 cooperates. The end section: 26 'of a frame for the workpieces is with the Motor frame connected. To absorb the forces resulting from the load on the suspension frame Attack with workpieces on the guideway, the support member has four Guide rollers 13 'and, four guide rollers 14'.

A Fig. 8 and 9, one of the rotating soft similarly executed, transitions n _e, each having two upper horizontal guide track portions 11 /, and a perpendicular guideway section 11 / interconnect; This is, for example, the transition identified in FIG. 5 with the reference number 84. The gearwheel.62 driven by the motor 10 'can interact with a gearwheel 64 which is provided at an interruption in a toothed rack 65, which in turn is directed to the horizontal or vertical sections H ₆ 'and 11 / the guide track ii' provided rack 63 can be aligned; the gear 64 is supported by a bearing 66. The rack 65 and the bearing 66 are provided on a guide track section 67, which in turn is attached to. a shaft 68 is attached, which is arranged coaxially with the motor shaft 69 .und is rotatably mounted in a stationary bushing 70. A rotary movement of the guide section 67 is brought about by the gear wheels 62, 64, the gear wheel 71 and the gear wheel 72 which are fixedly connected to the gear wheel 64. The gear 72 is fixedly connected to the bushing 70, The. Map sections of the guideway section 67 as well as the edge sections of the vertical and horizontal guideway sections 11 / and ιIj ', which face the shaft.68, are designed in the shape of an arc of a circle.

When a 'support member 1' _{comes from the left guide track section H 6} 'onto the section 67, one of the guide rollers 14' strikes a stop 73, which can be withdrawn by switching on a spool 74, as further movement of the support member 1 'is caused by the stop 73 is prevented while the motor 10 'continues to drive the gear 62, the movable guide section: 67 is turned in that the associated shaft 68 as a result of the power transmission through the gear wheels 64, 71 and 72 in the bushing 70 rotates until the rack 65 and the flanges of the section 67 are aligned with the rack 63 and the flanges of the guide track section 11 /; this alignment is for example ensured by the fact that the ¹ Abischnitt 67 against a stop, not shown, abuts.

At this moment the coil 74 is energized so that the ¹ stop 73 is withdrawn, and the support member along the vertical. Section 11 / can move down.

After a certain. Time that is the treatment time for that on the support limb

.609 959/426

N8616 Vl148a

suspended workpiece K corresponds, the support member moves along the section ii / upwards until again one of the associated guide rollers on the. Stop 73 abuts. The section 67 is then rotated by the gear mechanism 64, 71, 72 driven by means of the motor pinion 62 until the rack 65 is again aligned with the rack 63 on the right guide track section 11 ^ '; this can be achieved by, the. Section 67 at. can abut a stop, not shown. At the same time, the stop 73 is withdrawn by switching on the coil 74 so that the support member can resume its movement in the horizontal direction, but this movement now takes place along the guide track section 1 i _b ' on the right side.

Claims (5)

PATENT CLAIMS:
20th i. Device for treating the surface of objects, made of metal or other, -ren. Materials in one or more, e.g. B. galvanic treatment baths with limbs to support and move the objects along a guide device according to a predetermined working cycle, characterized in that each link has one Trolley with an electric motor used to drive it, a suspension frame for support the objects to be treated and those interacting with the guide device, comprises means effecting the supply of energy to the electric motor. 2. Apparatus according to claim I, characterized in that the with the Führungseinrich ^ Device cooperating means comprise separate lines passing through the guide device supports and. attached to electrical voltage sources, as well as to the car Pantographs are connected, and. that the electrical voltage of the Voltage sources different at different points along the guide device! is. 3. Apparatus according to claim 1 or 2, there, -by characterized in that the guide device one at different heights longitudinally next to each other arranged containers includes fixed, endless guide track and that above each partition between the containers one higher. lying section of the Guideway lies. 4. Apparatus according to claim 1, 2 or 3, characterized in that the projection of the interconnected sections of the guide track forms an endless curve, the guide track is essentially straight, horizontal sections arranged in at least two different heights and between these sections provided: , essentially straight ¹ , comprises vertical sections, so that adjacent sections of the guideway enclosing an angle are connected to one another by a bay piece. 5. Apparatus according to claim 4, characterized in that that the adjacent sections of the guideway, supported by, rotatably, Turnout-like sections are connected to one another in such a way that a support member of a section of the guide track can extend to an adjacent section of the guideway ,. For this purpose 3 sheets of drawings