FI69318C - APPARAT FOER BEHANDLING AV KATODBASPLAOTAR - Google Patents

Description

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The invention relates to a device for treating cathode washers for electrolytic cleaning or refining, which device comprises a support device for holding a washer with an electrodeposited metal plate in a vertical position, a pair of detaching devices having 10 blades at their ends for moving the release devices so that the wedges can move apart or close to each other, the wedges being arranged to move along the washer from its top to the bottom and for moving the release device of the drive.

According to conventional electrolytic cleaning, non-ferrous or non-ferrous metals are obtained by electroprecipitation of said non-ferrous metal on a cathode washer (hereinafter referred to as "substrate plate") placed in an electrolytic cell so as to form a cathode plate with an electroprecipitated metal plate. here "cathode plate" and electroplated metal plate "metal plate"). The metal plate is then removed from the washer by means of a removal device, e.g. a wedge scraper, a knife or similar tool, by inserting the release device between the washer and the metal plate.

Figures 1a and b are vertical and side sections of two cathode plate structures A 'and A "taken for example. In the case of such cathode plates, automatic release devices are generally used in which the metal plate 2' or 2" is removed from the washer 1 'or 1 ".

In the case of the cathode plate A1, the removal function takes place in such a way that either a mechanical impact, e.g. a hammer or an impact achieved by air pressure ai-35, is directed at the upper end of the metal plate 2 '. In this case, small holes are formed in the upper edge 32 'between the washer 1' and the metal plate 2 '6931 8. The release device (not shown) is then pushed po. between the plates vertically downwards.

However, the disadvantage of the cathode plate A * is then that the edge line 32 'is unclear, because the edge part 3', as can be seen from the figures, forms an acute angle with the washer 1 ', which makes it difficult to push the release device into the release point.

The cathode plate A "is again obtained by forming a narrow portion 10 6 at one point on the side edge of the washer 1" and placing a channel-shaped insulating material 4 "on both sides of the po. The strength of the insulating material then corresponds to the thickness of the washer 1" (Fig. B) or is thinner. Thereafter, a 2 "electrodeposition of the metal plate on the substrate-15 is performed.

Removal is still done by first forming small holes in the edge line 32 "between the plates 1" and 2 "(i.e. as in structure a) and pushing the release device po. and by moving the release device first horizontally and then vertically.

In the cathode plate structure b, the edge line 32 "of which is clearer than in the structure a, the release device is easier to use, but the disadvantage of this structure is that the insulating material 4" easily detaches from the washer 1 "25 due to vibration during transport, electrolyte corrosion and the like. In this case, it is even more difficult to push the release device into the release point, so the success of the work requires the formation of a new insulating material on the washer.

30 The detachment devices used in structures a and b also have the disadvantage that the washer can be damaged if a certain impact is applied to it by forming small holes between it and the metal plate. In addition, the washer may be damaged by the compressive force exerted on it by the pressing device when the plate is held in place when the release device is used, and also when the plate is held in place when the release device is used, and also when the release device is continuously pressed against the washer during the removal operation.

5 Po. a further disadvantage of the release device is that it performs a rectilinear movement, whereby it has a long stroke, which is usually produced by means of a liquid cylinder. The cylinder must then, of course, be long. If it is desired to avoid the use of a long cylinder, it is necessary to increase the short stroke by means of a corresponding stroke extension device comprising a rack and pinion or some other similar device. In any case, the devices then become relatively large and structurally complex.

The object of the invention is to provide a treatment device which is able to eliminate the difficulties associated with previous metal plate removal devices and which does not substantially damage the washer.

This is achieved by means of a device according to the invention, characterized by control devices dimensioned so that when the wedges are located above the washer and are detached from the washer, the release devices are open to spread the wedges and when the wedges move and come to a position where both insulation materials are at the surfaces at the top of the washer, the release devices are retracted and press the wedges into the washer, with the pressed wedges continuing to move until they are positioned between the washer and the metal plate and after starting to remove the metal plate from the washer. Thus, in the device structure according to the invention, it is not necessary to apply impacts to the part of the washer into which the release device is inserted, nor to use a washer-pressing device, whereby the washer cannot be damaged. The wedges are connected to a resilient device whose spring-35 lateral force is large enough that the wedges engage the 4 69318 washers. Therefore, the removal of the metal plate takes place at the initial stage po of the removal operation. when the wedge parts move and engage the washer under the action of a spring force or a steering motion, but since the force of the steering device or the spring force of the resilient device then move apart, the release movement continues with the wedges detached from the washer. In this way, the time during which the wedges contact the washer becomes considerably shorter and the damage possibly caused by the wedges to the washer is reduced. As a result, the service intervals are extended and the service life of the washer is increased.

The invention further aims to develop a small and economical handling device which is also able to eliminate another drawback associated with conventional devices, i.e. no large or complex device structure is required as the operating device of the release device.

The release device then moves in a curved circular path from one side corner of the washer to another. Still po. the apparatus includes a release device tilting device and a control device by means of which the wedges detached from the surface of the washer by the release function of the release device 20 are made to engage the surface of the washer again. Thus, in this preferred embodiment, the wedges move in a curved path and do not make straight horizontal or vertical movements.

Thus, the movement stroke of the drive is made shorter and the drive can therefore be designed as a very simple mechanism. The release device according to the invention also does not require different control devices between the drive device and the release device, and a very simple control cam can be used as the control device.

The device according to the invention is thus very simple in construction and inexpensive to manufacture.

In the figures relating to the accompanying drawing, Figure 1 illustrates two structural examples relating to previously used washers; Fig. 35 is a vertical section of the upper part of the second structure

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5 69318 and Fig. B is a cross-sectional view of the side portion of the second structure, Fig. 2 shows a washer structure according to the parent application; Fig. a then illustrates the entire washer from the front and Fig. b is a section along the line II-II 5 in Fig. a, Fig. 3 shows a second washer structure according to the basic application; a is a front view of the entire washer and b is a section along the line III-III in Fig. a, Fig. 4 is a partially cut-away side view showing the detachment function in the washer of Fig. 2 using the treatment device of the invention; Fig. 5 is a plan view taken along line V-V of Fig. 4; Fig. 9 shows enlarged plan views of the relative position of the washer and the release device during the removal-15 operation (Fig. 4, items VI-IX); Fig. 10 is a partially cut-away side view and and show the relative position of the washer and the release device during the release operation (Fig. 10, items XI-XIV), Fig. 15 shows a plan view of the release operation in the plate according to Fig. 3 using yet another processing device structure according to the invention, Figs. 16-19 are enlarged plan views and present the washer and detach the relative position of the device during the removal operation (Fig. 15, items XVI-XX), and Figs. 20 and 21 show in plan views (in part) two further washer structures according to the invention.

Figures 2 and 3 show a washer 1 according to the base application. The washer of Figure 2 has an insulating material 4 on the right side edge of the plate and the washer of Figure 3 in the middle at the upper end of the plate, respectively. Since the insulating material 4 is an integral part of the invention, its structure will now be described in more detail.

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The insulating material 4 (line II-II in Figure 2a and enlarged section along line III-III in Figure 3a) is plastic, e.g. epoxy or polyester resin, other similar material or rubber, and is partially embedded in holes 5, 5 drilled in the washer 2. mm to the strong part. The normal thickness of the washer is 6 mm. The insulating material 4 is placed on both sides of the thin part of the washer 1 and its total strength corresponds approximately to the strength of the plate 1. It should now be noted that reference numeral 6 denotes a conventional insulating body for keeping the metal sheets apart on both sides.

In the washer 1 thus constructed, in which the insulating material 4 is attached to each side thereof and connected together by means of parts recessed in the holes 5, it cannot fall out of the washer 1 due to impact or corrosion.

When such a washer 1 is used, the edge part 3 of the metal plate 2 is obtuse (or upwards) with respect to the washer 1 (Fig. B), where po. a wedge-shaped gap C is formed between the plates 20 into which the release device can be inserted.

In the following, the removal of the metal plate 2 from the base plate 1, in which the above-mentioned insulating material 4 is placed, using the treatment device according to the invention will be described in more detail. 25 First construction: washer 1 of Figure 2.

The processing device shown in Figures 4-9 includes a support device 27 and a release device 15.

Cathode plates with a metal plate 2 on each side of the washer 1 are arranged in sets of 30 comprising about 10 plates by means of a lifting or similar device and suspended from the beam 21 at regular intervals (support device 27).

The release device 15 is arranged laterally opposite the cathode plate A and comprises a pair of release devices 8, 8 'arranged on each side of the washer and above the po. a scraper drive 19 and a cam plate 7 which keeps the release devices 8 and 8 'apart.

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The release devices 8 and 8 'are supported as a pivoting structure at their lower ends on a support part 9 fixed to the support device 27 by a pin 14. At the upper ends of the release devices, wedges 10 and 10' are placed against the insulating material 5 of the washer 1. The release devices are made of a flat spring and tend to move close to each other. Therefore, they are designed so that the wedges 10 and 10 'lock to each other when they are not subjected to external forces. The drive device is supported as a pivoting structure by means of a ta-10 pin in the projection 11; the protrusion is in turn fixed to the support device 27. The end 13 of the piston rod pivots in the base plate of the release devices 8 and 8 'by means of a pin 14. The cam plate 7 is attached at its lower end to the support device 27 and is in the middle of the scrapers on the cylinder 19 and comprises higher front and rear parts 16, 16 'and 17, 17' and lower middle parts 18, 18 '.

With reference to Figures 6-9, po. device disconnect function. The state of the release devices 8 and 8 'in the positions shown in points VI to IX of Figure 4 is seen successively in Figures 6-9, in which the letters a and b denote the characters-20 in each po. in the figure, the mutual positions of the wedges 10, 10a and the washer 1 and the mutual positions of the respective parts of the release devices 8, 8 'and the cam plate 7.

When the washer 1 is supported in the predetermined position shown in Fig. 4, the release devices 8 and 8 'are located at VI, whereby they remain (Fig. 6b) apart by means of the higher parts 17 and 17' of the cam plate 7 so that the distance between the wedges 10 and 10 ' may be greater than the strength of the washer 2. The release devices 8 and 8 'then do not come into contact with the insulating material 4.

At this point, the drive device 19 is started and moves the release devices 8 and 8 '. When at point VII in Figure 4, they move to the lower portions 18 and 18 'of the cam plate 7 (Figure 7b) and are compressed by their spring force, whereby the wedges 10 and 10' adhere to both sides of the insulating material 4 of the washer 1 (Figure 7a). .

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When the release devices 8 and 8 'are then in the position VIII shown in Fig. 4, the wedges 10 and 10' (Fig. 8a) pass through the wedge-shaped opening C in the metal plate 2 and protrude between the metal plate 2 and the base plate 1, starting to remove the metal plate 2 from the base plate 1. The removal operation then continues as the wedges 8 and 8 'move along the lower portions 18 and 18' of the cam plate 7 (Fig. 8b).

When the wedges 10 and 10 'have detached the po. the plates from each other and when the release devices 8 and 8 'are approximately 10 in the position IX of Fig. 4, they engage the higher parts 16 and 16' of the cam plate 7 (Fig. 9b), and thus move apart. The wedges 10 and 10 'are at this stage detached from each surface of the washer 1. The disconnect function then continues in this position.

During the removal operation, the wedges 10 and 10 'move in a curved path, the pin 14' then being its center (shown by the arrow). When the wedges reach the position X in Fig. 4, the removal operation ends.

Second construction: washer 1 of Figure 2. The release device 20 now differs from the release device of the first construction.

The second structure is shown in Figures 10 to 14. The same parts have the same reference numerals, so now only the operation of the parts different from the first structure will be described.

The release devices 8 and 8 'are made of a flat spring, so that they are easily separated from each other. Thus, the wedges 10 and 10 'are normally detached from the washer 1.

The cam plates 7 and 7 'are located outside the release devices 8 and 8' in the support device 27 and have inner parts 16 and 16 'at their inner ends and lower parts 18 and 18' at the rear parts 30 (Figs. 11 to 14).

The removal operation with the device according to this structure will be described mainly with reference to Figs. 11 to 14.

In Figures 11 to 14, the letters a and b denote the relative positions of the wedges 10, 10 'and the washer 1 and

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9 69318 or the relative positions of the respective parts of the release devices 8, 8 'and the cam plates 7, 7'. The release devices 8 and 8 'are in the positions shown in points XI to XIV of the present figure.

When the washer 1 is supported on the support device 27 in the position predetermined in the front-5 (Fig. 10), the release devices 8 and 8 'are at point XI, whereby they are separated from each other (Fig. 11b). Their higher parts 23 and 23 'are then close to the lower parts 18 and 18' of the cam plates 7 and 7 ', so that the distance between the wedges 10 and 10' is greater than the strength of the plate 1 of the vessel 10. The wedges are now detached from the insulation material 4.

At this point, the drive device 19 is started and moves the release devices 8 and 8 '. When they reach the position XII in Fig. 10, their higher parts 23 and 23 'move towards the higher parts 16 and 16' of the cam plates 7 and 7 '(Fig. 12a) and slide towards the metal plate 2.

After the release devices 8 and 8 'enter point XIII in Fig. 10, the wedges 10 and 10' (Fig. 13a) protrude between the metal plate 2 and the washer 1, whereby the release operation begins and continues as the higher portions 23 and 23 'of the release devices 8 and 8' move to the cam plates 7 and 7. 'along the higher portions 16 and 16' (Fig. 13b).

When the wedges 10 and 10 'perform the removal function po. in the position and when the release devices 8 and 8 'come approximately 25 to the position XIV of Fig. 10, their higher parts 23 and 23' detach from the higher parts of the cam plates 7 and 7 '(Fig. 14b). The scrapers are then again separated from each other, and the wedges 10 and 10 'are detached from the surfaces of the washer 1. The disconnect function then continues in this position.

During the removal operation, the wedges 10 and 10 'move in a curved path, the pin 14' then being at its center, i.e. in a manner corresponding to the first structure. When the wedges have entered point XV in Fig. 10, the removal operation ends.

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Third construction: washer 1 of Figure 3.

The third structure is shown in Figures 15 to 19. The base plate 1 should now be referred to as a vertical plate, while the washer associated with the second structure is horizontal. However, the washer of this construction corresponds in many respects to the washer of the previous construction, so the same parts are used by the same reference numerals. Also, the description is limited to parts that differ from the second structure.

The handling device of Fig. 15 has a chain conveyor 29, 10 to which the lower end of the washer 1 is further connected, a support device comprising guide rods 30 on each side of the beam 21 of the washer 1, and a release member 15 '.

The washer 1 is moved to the release position so that the conveyor 29 supports its lower edge and the guide rods 30 are attached to each side of the beam 21. The release member 15 'is opposite the washer 1 and comprises a pair of release devices 8, 8' located on each side of the plate 1. In addition, the release member has an actuator using the release devices 8, 8 'and two cam plates 7, 7' for keeping the release devices 8, 20 8 'apart. The release devices in this bag structure are springs and thus tend to move apart. If they are not subjected to external forces, the wedges 10 and 10 'are detached from the washer 1. Reference numeral 28 denotes the guide frame of the support device 27 comprising the drive device 19'. The cam plates 7, 7 '(Fig. 15) located outside the release devices 8 and 8' in the support device 27 via the support rod 31 (Figs. 16 to 19) are provided with parts 16 and 16 'higher at the lower ends and low portions 18 and 18' at their upper ends, respectively. .

The detaching function will now be described in more detail with reference to Figures 16 to 19. In these letters, the letters a and b denote the relative position of the wedges 10, 10 'and the washer 1 and the respective positions of the detaching devices 8, 8' and cam plates 7, 7 ', respectively. 15 in positions XVI - IXX.

tl 1 1 6931 8 This structure differs from the above-mentioned other structure in that the release devices 8, 8 'move linearly in the vertical direction. The cam plates 7, 7 'act on the release devices 8, 8' po. in the structures, however, in exactly the same 5 ways, so this function is no longer described.

Although some preferred structures related to the invention have been presented above to illustrate the matter, it will be apparent that various structural modifications may be made within the scope of the appended claims.

In this connection, it should also be noted that the washers 1 shown in Figs. 20 and 21 have an insulating material 4 of different shapes, and that a cylinder is used in the figures as a drive device and a cam plate as a control device 15, respectively. Po. however, other similar devices may be used for these purposes.

Claims (6)

An apparatus for treating cathode base plates for electrolytic purification or refining, said apparatus comprising a support device (27, 29, 30) for holding a base plate (1) provided with an electrically precipitated metal plate (2) in an upright position; a pair of stripping devices (8, 8 '), the ends of which are provided with sharp wedges (10, 10') and comprising a pair of elastic devices 10 for moving said stripping devices so that the wedges (10, 10 ') can move in apart or close to each other, the wedges being arranged to move along the base plates (1) from its Upper to its lower portion; and a drive means (19, 19 ') for moving the stripping device (8, 8'), characterized by control devices (16, 16 '; 23, 23') so dimensioned that the wedges (10, 10 ') are located above the base plates and at a distance from the same, the stripping means (8, 8 ') are open and propagate the wedges (10, 10'), and then the wedges (10, 10 ') move and reach the point where they lie at an insulating mat. bed surfaces of the base plate (1) Upper portion, the stripping means (8, 8 ') are contracted and engaging the wedges with the base plates (1), whereby the engaged pressed wedges (10, 10') continue to move until the stripping of the metal plates (2) starts from the base plates (1), the stripping device opens to release the wedges from the surface of the base plates (1). Processing apparatus according to claim 1, characterized in that the stripping device (8, 8 ') is arranged to move the wedges (10, 10') along a circular beak-shaped path extending from the upper corner on one side of the cathode base plates (1) to the lower corner. on the other side of the same (first and second embodiments). Processing apparatus according to claim 1, characterized in that the stripping device II