EP1254974A1 - Method and apparatus for shifting of metal anode plates or bars hanging on contact beams - Google Patents

Abstract

The method of displacement of anode plates (8) on suspension beams over electrolytic surface finishing or plating tanks (9). The method involves feeding fresh anode plates into the area of the strips to be plated to be positioned on either side of the strips. The anode plates on several suspension beams can be positioned simultaneously.

Description

The invention relates to a method and an apparatus for moving from Contact bar hanging metal anode plates or metal anode rods in Electrolyte tanks through an anode slide, especially for electrolytic Coil finishing or coating systems.

In such plants, metallic tape, e.g. Steel strip, in an electrolytic Process continuously coated, e.g. tinned. The metal anode plates or the metal anode rods using a hook-like tool in the treatment area on both sides of the steel strip to be coated positioned. It is known to pack entire anodes by attacking a push rod to be moved mechanically or hydraulically on the last attached outer anode. The push rod is connected to a push device that is is located approximately at the level of the anode heads and is transportable (DE-OS 23 23 788). The actuation of the pushing device, i.e. the driving back and forth takes place still by an operator. The anodes are also attached still by hand. It is possible through the thruster, the anodes with the system running at full speed in a short time and without accident or Risk of damaging the belt. However, it is still like before difficult, the anode package sufficiently accurate to the metal strip to be coated align and follow up during coating and e.g. the To change the coating thickness in the band edge area.

The invention is based, regardless of the replenishment of the task new anode plates or anode rods, whole anode packages faster and position it more precisely.

The object is achieved according to the invention in that the on the anode bench put on new anodes automatically in the area of the to be coated Band pushed and centered or staggered on both sides positioned in a controlled manner on the belt. This allows the entire anode package the number of new, unused anodes compared to the one to be coated Belt moved and moved to the most favorable coating position become. The entire anode package thus becomes the one to be coated Band aligned favorably. The position of the anode stack is no longer the same Handling dependent on the operator.

According to further advantageous steps, it is provided that with the Retraction of the anode slide on the opposite side one or more used ones Anodes pulled out of the coating area and into the Change position are driven.

The performance of the system can also be increased by using several Metal anode plates located at the contact bar can be moved simultaneously.

With the device for moving metal anode plates hanging on contact bars in electrolyte tanks by means of an anode slide, in particular in electrolytic strip finishing or coating systems, the posed Object achieved according to the invention in that a beam crossbar is supported on both sides of the bridge bearing and that perpendicular and / or under one acute angle to the tape running direction by means of a drive several on the Metal anodes placed on the contact bar can be moved into the coating position are. This allows a controlled positioning of the anodes over the Bandwidth take place and the whole anode package can be adjusted. The entire set of anodes can be increased by the number of new, unused ones Anodes shifted in relation to the strip to be coated and in the cheapest Position.

According to further features, it is provided that the beam crossbar is positioned next to one another the treatment tank arranged slidably supported bridge bearings and has rotatably mounted adjusting spindle, at one end of the adjusting spindle a drive motor attacks. When rotating by the drive motor, the can be operated electrically, hydraulically or pneumatically, the beam crossbar pushed back and forth.

According to a further embodiment it is provided that the adjusting spindle and the pivot bearings and threaded nuts are surrounded by a base frame that even from a front travel frame and a rear travel frame Part lengths is surrounded. The adjusting spindle therefore remains in any position surrounded by the base frame and thus protected.

Another improvement is that one located on the beam crossbar Hook into the rearmost used metal anode using a catch can be snapped into place.

An increase in performance of the system is achieved in that the beam crossbar interacts with several contact bars running parallel to each other. A shift of the beam crossbar affects everyone on the contact beam metal anodes.

The adjustment of the beam crossbar can be technically and economically favorable be carried out by using a single drive for the multiple contact bars Beam crossbar is provided.

For safe operation and fault-free operation, it is also advantageous that the buffers on the beam crossbar are electrically insulated and / or electrically isolated driver pawls are provided.

The security of the functions can be further increased by the entire Beam crossbar is hung or stored in an electrically insulated manner.

In the drawing, exemplary embodiments are shown, based on which the method and the device will be explained below.

Fig. 1

xeine Draufsicht auf die Balkentraverse mit Brückenlagern,

Fig. 2

einen senkrechten Längsschnitt B-B aus Fig. 1,

Fig. 2A

eine Einzelheit C aus Fig. 2 und

Fig. 3

einen senkrechten Querschnitt A-A aus Fig. 2.

Show it:

Fig. 1

x a top view of the beam crossbar with bridge bearings,

Fig. 2

2 shows a vertical longitudinal section BB from FIG. 1,

Figure 2A

a detail C from Fig. 2 and

Fig. 3

a vertical cross section AA from FIG. 2.

1, a beam crossbar 1 is formed, which is arranged at the ends Bridge bearings 2 and 3 is supported. The beam crossbar 1 runs vertically and / or at an acute angle to the tape running direction 4 (see FIG. 3) of the metal strip to be coated, in particular steel strip 5. The metal strip 5 is led around a current roller 6, so that the metal strip 5 between two rows of anodes (soluble metal anode plates or metal anode rods) continuously transported past becomes.

The anodes 7 are located on a contact bar 8 and hang from it in an electrolyte tank 9 which is up to the liquid level 10 with electrolyte liquid is filled. The metal anodes 7 hang in the coating position 11, i.e. in a distance from the metal strip 5, which is electrolytically favorable.

The beam crossbar 1 has sliding bearings 12 and 13 with pivot bearings 14 and 17, which together with threaded nuts 15 and 16 by means of an adjusting spindle 18 can be pushed out.

The beam crossbar 1 forms a front and a rear at the ends Travel frame 19 and 20. In Fig. 1, the left travel frame 19 is in the rest position drawn and the right traversing frame 20 in the change position with a displacement path 21, which depends on the width ratio of the metal strip 5 is so that different widths can be treated.

The displacement path 21 is carried out by means of a drive 22, which is on the adjusting spindle 18 stores and e.g. can consist of an electric rotary motor 22a.

The adjusting spindle 18 and the rotary bearings 14 and 17 and the threaded nuts 15 and 16 are surrounded by a base frame 23, which itself is from the front Travel frame 19 and the rear travel frame 20 on the partial lengths shown 24 is surrounded. The anode slide 1a is on the front travel frame 19 attached.

On the beam crossbar 1 (FIG. 2A) a hook 25 is also attached, which is a driver pawl 26 owns. The driver pawl 26 is in the last one or more used metal anodes 7 snap into place and these can then be pulled out become.

The beam crossbar 1 can have a plurality of contact beams running parallel to one another 8 (as visible in Fig. 3). For several contact bars 8 is the Drive 22 is provided as the only drive that the beam crossbar 1 in total adjusted.

On the beam crossbar 1 there are electrically insulated displacement buffers 27 and / or electrically isolated driver pawls 26 are provided. The entire beam crossbar 1 can be hung or stored in an electrically insulated manner his.

LIST OF REFERENCE NUMBERS

1

Traverse bar

1a

anode slide

2

bridge bearings

3

bridge bearings

4

Tape direction

5

Metal, especially steel tape

6

current role

7

Metal anode

8th

contact bars

9

electrolyte tank

10

liquid level

11

coating position

12

sliding bearings

13

sliding bearings

14

pivot bearing

15

threaded nut

16

threaded nut

17

pivot bearing

18

adjusting spindle

19

front travel frame

20

rear travel frame

21

displacement

22

drive

22a

drive motor

23

base frame

24

partial length

25

hook

26

electrically isolated driver pawl

27

electrically insulated shift buffer

Claims (11)

Method for moving metal anode plates or metal anode rods hanging on contact bars in electrolyte tanks, by means of an anode slide, in particular for electrolytic strip finishing or coating systems,
characterized in that the new anodes placed on the anode bench are automatically pushed into the area of the strip to be coated and are positioned in a controlled manner in the center or in a defined offset on both sides of the strip. Method according to claim 1,
characterized in that at the same time as the anode slide moves back on the opposite side, one or more used anodes are pulled out of the coating area and moved into an exchange position. Method according to one of claims 1 or 2,
characterized in that metal anode plates located on several contact bars are each displaced simultaneously. Device for displacing metal anode plates or metal anode rods hanging on contact bars in electrolyte tanks by means of an anode slide, in particular for electrolytic strip finishing or coating systems,
characterized in that a beam cross-member (1) is supported on bridge bearings (2; 3) on both sides and that perpendicularly and / or at an acute angle to the strip running direction (4) by means of a drive (22) a plurality of metal plates placed on the contact beam (8) Anodes (7) can be moved into the coating position (11). Device according to claim 4,
characterized in that the beam cross-member (1) has an adjusting spindle (18) which is displaceably supported and rotatably mounted on bridge bearings (2; 3) arranged next to the electrolyte tank (9), a drive motor (22a) acting on one end of the adjusting spindle (18). Device according to one of claims 4 or 5,
characterized in that the adjusting spindle (18) and the rotary bearings (14, 17) and threaded nuts (15, 16) are surrounded by a base frame (23) which itself is supported by a front travel frame (19) and a rear travel frame (20) Part lengths (24) is surrounded. Device according to one of claims 4 to 6,
characterized in that a hook (25) arranged on the beam crossbar (1) can be snapped into the rearmost used metal anode (7) by means of a driver pawl (26). Device according to one of claims 4 to 7,
characterized in that the beam crossbar (1) interacts with a plurality of contact beams (8) running parallel to one another. Device according to one of claims 4 to 8,
characterized in that a single drive (22) for the beam crossmember (1) is provided for a plurality of contact beams (8). Device according to one of claims 4 to 9,
characterized in that sliding buffers (27) and / or driving pawls (26) suspended in an electrically insulated manner are provided on the beam cross member (1). Device according to one of claims 4 to 9,
characterized in that the entire beam crossbar (1) is suspended or stored in an electrically insulated manner.

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