SI20416A - Process and device for volumetric filling and control of filling in manufacture of multicomponent filled wires - Google Patents

Abstract

The invention refers to a process and devices for the volumetric filling as well as control of filling in the manufacture of multicomponent filled wires, which are used in metallurgy as filled rolled sections or applied to metallurgical processes of acquirement of various alloys by addition of various materials into liquid metals. The wires may be used also as welding media in the case of more demanding welding technologies. The process and devices for the volumetric filling as well as control of filling in the manufacture of multicomponent filled wires is characterized by a technological line for the production of filled wires designed in several stages. In the first stage, machines for unrolling of metallic tape are used for filling the wire. Next, edges of the tape are welded together on welding machines in the second stage. The tape then travels to the third level of technological processing - shaping-filling-closing and calibration of the pipe profile of the already filled wire. In the final stage, the obtained wire is wound into coils

Description

Alojz Cajnko, 2000 Maribor, Sl

PROCEDURE AND DEVICES FOR VOLUMETRIC CHARGING AND CHARGING CONTROL IN THE MANUFACTURE OF MULTIPONENTAL CHARGED WIRE

Int.CL:B 21 F1 / 00, and 3/00, B 21 K 27/2, B 23 D 1/26, and 7/00

The present invention relates to a process and apparatus for volumetric charging and charge control in the manufacture of multicomponent filled wires, which are used as filled rolled sections known as cored wire (fulredrht, fil foure, etc.). In metallurgy, it is used in metallurgical processes for the production of various alloys and is intended for the addition of various materials to liquid metals, and on the other hand, it is also used as a welding medium for more advanced welding technologies. Stuffed wire is a product that combines the pipe making process with the technology of filling the empty space inside the pipe. It is actually a metal tube made of a selected metal strip, filled with different fillers and wound on appropriate rings. The production of filled wires is part of the process of production and processing of metallic and non-metallic materials, which includes the production and preparation of a filler for a filled wire, the production and preparation of a strip for coating and the production of a filled wire on suitable devices.

It is well known that today, the world produces made-up wire by gravimetric method for stuffing materials into stuffed wire, which according to our volumetric procedure, explained below in the text of the claimed invention, has a number of disadvantages. The most important solution according to the patent is that the volumetric process takes into account the different volume of the individual fillers at different embankments

-2weights. The gravimetric process, on the other hand, has many drawbacks, as it mixes different fillers outside the metering system.

In designing the process and apparatus for volumetric charging and charge control in the manufacture of several component-filled wires, I have come from the already known technical solutions for the production of metal pipes and the recognition of defects on the systems of today's manufacturers of dispensers or. metal tube fillers and fly applications in direct production. I have also not found any patent application that addresses this or a similar technical solution, and in general a volumetric tube filling system, which gives my invention a particularly innovative and technical solution. Because of this, we are not able to provide our patent with any related solution. technical solutions already reported. Although other manufacturers of rechargeable wires, all of which have a gravimetric dosing process in their turn, have different filling control devices, to our knowledge, no manufacturer has so far connected such or similar devices to the same system and in the manner proposed by the patent. .

The present invention solves the problem of uniform and high-quality arrangement and mixing and continuous dosing of the filler, which is in the form of a metering device integrated into a line for making filled wires. In the framework of the design of the volumetric filling process, the problem of continuous control and determination of the quality of the filling and the uniform distribution of the filling over the empty space of the tubular wire has been solved. A third technical problem solved according to the invention is the coating solution and its wide applicability with individual technical solutions in improving the quality of the joining of the tape, the quality of the tab and the uniformity of the wire filling.

On the basis of the established state of the art and the experiments made in the production, we confirmed certain advantages of the process according to the invention, which is manifested primarily in the simplicity of the process and in the cheaper or. faster realization of technology and its introduction into automated production.

-3 The problem solved by the process and devices for volumetric charging and charge control in the manufacture of multicomponent charged wires is a line for the production of charged wire, consisting of several separate, interconnected and synchronized machines and devices, which I show in a descriptive way and in pictures .

We will illustrate the invention in the following way because we believe that it is so simple and that the necessary devices for its realization are in an unlimited number of versions in quality and capacity so that everyone can adapt it to their technological needs.

FIG. 1 is a longitudinal cross-section of a line for the production of charged wires according to the volumetric method of FIG. 2.1 is a cross-sectional view of a manufactured filled tube in circular shape with diametrical longitudinal reinforcement grooves FIG. 2.2 is a cross-sectional view of a manufactured filled tube in a circular shape FIG. 2.3 is a cross-sectional view of the manufactured square tube in FIG. 2.4 is a cross-sectional view of the manufactured octagonal shaped tube in FIG. 3 is a longitudinal cross-sectional view of a volumetric charging system and a wire charging control, shown as part of the wire filling line of FIG. 4 is a longitudinal view of the dosage of two or more materials before the vibrator is used; 5 shows a longitudinal view of the dosage of two or more materials after the use of a vibrator. 6 is a transverse and longitudinal view of the suction system with suction tubes

The line for making solid wires consists of several standalone, interconnected and synchronized machines and devices, shown in Figure 1. These are the unwinding machine 1, the welding machine 2, the introducer 3, the profiling machine 4, the adjustable cylinders 5, the intermediate silos with the adjustable ruler 6, containers 7, a dosing system 8 with a vibrator and a suction device, a profiling machine for closing the pipe 9, a calibration device 10 with a measuring device and a winding machine 11, and finally a lifting device 12 and a packer for wound coiled wire 13.

The operation of all machines and devices is coordinated and synchronized.

-4The unscrewing machine 1 shown in FIG. 1 is used for mounting and reeling the coils of the coating tape. Attach the metal strap with a forklift truck or crane to the unscrewing machine. The end of the strip is introduced into the introducing device on the profiling machine and the transformation of the strip or the production of the filled wire begins.

Since the coils of the sheathing tape are shorter than the coils of the filled wire, the ends and beginnings of the sheathing coils must be welded to the corresponding welding device 2 shown in Fig. 1 to allow the welding of the metal webs to be welded together. As a rule, to produce one reel of filled wire, welding of the coiling tape is required three times.

The deployment device 3 shown in FIG. 1 serves to align and slightly pre-deform the sheathing tape prior to introducing the sheathing tape into the profiling machine 4, FIG.

The coated tape thus prepared travels through the profiler 4 at speeds of 50 and 150 m / min. In the first quarter of the profiling machine 4, the corresponding rollers first bend into a groove suitable for filling. The following rollers stabilize the groove shape and prepare attachments for later closing of the filled wire

Even before production begins, the silos 6 shown in FIG. 1 and in more detail than the silos 4 and 4.1 in FIG. 3, and containers 7 are prepared appropriately. Intermediate silos 4 and 4.1 of Fig. 3 can only be two, and there can be more than one container. Thus, the desired chemical and granulation composition of the filler can be prepared.

In the second quarter of the profiling machine, the dosing system 8 of Fig. 1, which is the subject of this patent, is installed and will be described in more detail later.

In the third quarter of the profiling machine 9, FIG. 1, the closed wire is closed and the tab and various wire profiles shown in cross-sectional view are formed.

-5 Figures 2.1, 2.1, 2.3, and 2.4, which prevents the filled wire from being opened when wound and subsequently used. The tab is also the subject of this patent and will be described in more detail later.

The fourth quarter of the profiling machine is followed by the calibration of the filled wire and the measurement of its length 10, FIG. 1. In this section of the profiling machine, the filled wire gets its final shape and diameter. At this stage of fabrication there is a greater or lesser deformation of the filled wire.

Finally, the coiled wire on the winding device 11, Fig. 1 is wound manually or semi-automatically on the drum.

With the help of the cantilever lift 12, the winding drum 13 is disassembled. The finished coil of the filled wire is removed and properly packed.

Wire profiling is a very important link in the fabrication phase, since the shape of the filled wire profile shown in Figures 2.1, 2.2, 2.3 and 2.4 provides the rigidity of the filled wire, which is necessary for the smooth use of the filled wire.

In use, the filled wire is dosed or injected into the liquid metal. It is very important that the injection of the filled wire is vertically and centrally repeated with the liquid melt, that the wire does not become entangled at high speed injections, that the wire does not open during injection and that the wire dissolves in the lower third of the repeat. Such quality of the filled wire is ensured by the appropriate shape of the tab and the appropriate profile.

The shape of the tab is the same for all forms of filled wire. It is essential that the segments of the flap fit tightly and that they are pressed into each other in the final stage of fabrication of the filled wire, that is, in calibration. The length of the inner part of the Z tab is determined and substantially dependent on the type of filler and the purpose of use and the rate of arrival of the alloy or the rate of consumption of the welding technology.

-6The tab shown in Figures 2.1, 2.2, 2.3, and 2.4 is defined by at least four times the thickness of the pipe wall and must be at least four times the length of the pipe-making tape thickness defined as S in the above-mentioned figures.

For larger thicknesses of the sheathing tape and unpretentious injection conditions, the rigid stiffness of the filled wire is already provided by the tab. Nevertheless, we improve the stability of the injection with the appropriate profile shape shown in Figure 2.1. For larger thicknesses, the profile form shown in Figure 2.2 is sufficient for the coating strip; in Figure 2.3. and in Figure 2.4. are profile shapes that are suitable for thinner sheet thicknesses and for very specific injection conditions.

The proper quality of the filled wire, which will not be excessively deformed or even torn when used and which will allow accurate and reliable dosing of the filler into the melt, can be achieved by uniform filling, where every small particle of five or more thousand meters long filled wire will be reliably fully filled .

A particular problem of charge uniformity is the production of multicomponent filled wires, where one component represents the required alloying or cooling (if used as a welding wire) element, and the other or more other components are only filler to fill the volume of the charged wire. This problem is solved by the patent Procedure and Device for Volumetric Charging and Charging Control in the Production of Multicomponent Charged Wires.

The process and apparatus for volumetric filling and charge control for the manufacture of multi-component filled wires are shown in Figure 3. It consists of a work table 1, filler 3 and 3.1, two filling silos 4 and 4.1, two dosing wheels 5, a conveyor belt 2, a hopper with adjustable ruler 6, sheath tape vibrator 7, suction device 8, maximum charge limiter 9, and laser charge control device 10.

-Ί The whole system is integrated into the line for the production of stuffed wire and is attached to the workbench (1), to which are also attached the roller frames for the transformation of the stuffed wire.

Two functionally designed bulk silos (4) and (4.1) allow for the preparation of two different fillers, different chemical and granular compositions and different bulk weights. The shape of the silo and the shaking and vibrating devices installed in and on the silo prevent the materials from being mixed in the silo and ensure a controlled and uniform granulation composition of the filler.

Two adjustable metering wheels (5), located below the intake silos, allow accurate and uniform volumetric dosing of the material. Both dosing wheels can be adjusted to suit the dosing volume depending on the fill weight and the desired ratio of the individual components.

Batch shaped metering wheels add the right amount of material to the conveyor belt (2). First, a more important or more demanding filler (3) is added to the conveyor belt, and then an even less demanding filler (3.1).

The adjustable ruler (6) aligns the added material on the conveyor belt to the required width and thickness of the layer. Then, the addition process is repeated with another, less demanding filler or a combination of different fillers. The adjustable fill hopper, which is located at the end of conveyor belt 2, allows a uniform transition of bilayer-added material from the conveyor belt into a suitably reshaped belt for lining the poses. 1.1 shown in Figures 3 and

4.

Both materials are dosed very precisely, but as shown in Figure 4, they are not yet mixed at the time of dosing. Such a filled filled wire would not give optimal results when used, as it would be different

-8 wettability of materials and different surface stresses resulted in different melting conditions. This would result in one material standing earlier than the other. The melt would have different local concentrations of dosage materials, and in the worst case, the rapidly burning dust would already burn on the melt surface.

It is therefore necessary to ensure that the filling is homogenised immediately with the vibrator (7) located behind the hopper. Due to the vibrations, the lower and upper layers are completely mixed, thus ensuring local homogenization of a mixture of two or more fillers, which, in the final stage of the production of the charged wire, also, during the calibration phase, are adhered to the homogeneous mass shown in pos. 2.2 in FIG. 3 and 5. Such a mass does not decompose when using a filled wire, so the treatment of the melt with such a filled wire is uniform and of good quality.

Behind the vibrator 7, a three-piece suction system 8 is shown, as shown in Figures 3 and 6, which ensures uniform charging even when starting and stopping the production of the charged wire or when changing the manufacturing speed. With each change in speed, the dosing system adds a little too much material to the groove of the coating tape. This excess material would later prevent the quality of the wire from being closed and calibrated due to excessive volume. Therefore, the suction system 8 in FIG. 3 and shown in position 3.1 in FIG. 6, the excess amount of charge is extracted here, and the larger particles are mechanically captured by the adjustable limiter of the maximum of charge 9, FIG.

3.

At the end of the volumetric charge and charge control device for the production of multicomponent charged wires Fig. 3, there is also a laser meter of the thickness of the filler layer 10 in a bent sheath, which, before closing and calibrating the filled wire, accurately measures the thickness of the layer and compares it with the required thickness layer that provides a fully charged wire. The laser gauge 10 measures the thickness of the layer along the entire length of the charged wire and logs the measurements numerically and graphically. At the same time as an audible signal, a signifier and a stop of the line, it immediately warns of any unacceptable deviation and enables the employee on the line for the production of the charged wire

-9Failures. The laser also detects possible incomplete mixing of different materials, Figures 4 and 5, since the reflection from the smaller grains of material 1, in Fig. 5, is different from that of the large grains 2, in Figures 4 and 5. Measurements can be observed on the monitor at a line for making a stuffed wire and on a monitor in a reverse office.

In addition, the protocols can be attached to the sales documentation to provide the end user with complete charge control for each coil of charged wire.

To accomplish this task, the process and apparatus for volumetric charging and charge control in the manufacture of multicomponent filled wires according to the invention are characterized by the features of the first patent claim, namely: the process is designed with (in itself known) the order of carrying out the technological operations of making the filled wire and in the proper proportion mixing and granulating two or more fillers over the entire length of the solid wire produced.

Claims (11)

Patent claims 1. The method and device for an ox metric charge and a charge control for the manufacture of multicomponent stuffed wires are designed in such a way that the set up line for the production of stuffed wire is characterized in that the technological process for the production of solid wire is designed using volumetric wire filling and in the first stage of the technological process the tape unwinding devices are started, then the edges of the welding machine are welded at the second level, at the next level of transformation the tape is formed in the form of a groove and as the groove goes to the next level of technological processing of filling-closing and calibration The grooved profile is already filled with wire into various tubular shapes and in the final stage of the process the wire thus obtained is wound on the coils. 2. The method of claim 1, characterized in that it can be performed on an automatic production line. The method according to claim 1, characterized in that, during the strip transformation phase, the tape-forming device can be shaped into a circular shape. The method according to claim 1, characterized in that, during the strip transformation phase, the strip-profiling device can be shaped into a circular shape with diametrical longitudinal reinforcements. 5. The method according to claim 1, characterized in that, during the strip transformation phase, the strip-forming device can be shaped into a square shape. -116. The method according to claim 1, characterized in that, during the strip transformation phase, the strip-profiling device can be shaped into a polygonal shape. The method according to claim 1, characterized in that the granulation of one or more different fillers is prescribed in the groove of the grooved strip at the dosing device. 8. The method according to claim 1, characterized in that during the filling phase of the grooved strip on the vibrating device, the dosed amount of filler poured into the groove is mixed uniformly with one another. 9. The method according to claim 1, characterized in that during the filling phase of the grooved strip on the straightening and suction device, the dosage amount in the groove is aligned and the remainder of the filling is sucked away. 10. The method according to claim 1, characterized in that at the stage of closing the grooved tape on the laser metering device, the insufficient amount of the prescribed granulation is detected in the groove. 11. The method according to claim 1, characterized in that, during the closing phase of the recessed strip, a tab is produced at the calibration device, which must not be less than four times the thickness of the strip. 12. The method according to claim 1, characterized in that, in the winding phase of the strip, winding devices are used which allow winding of the wire, regardless of the type of filling and the diameter of the wire.