Application and device TSF machines. Application and device TSF machine tools Homemade TVF devices in everyday life

Specifications

The bottom plate is 600 mm above the floor level, rigidly fixed on the frame of the press.
Sizes of the working area 2500x1200 mm
Disclosure of the press 1500 mm
The course of the main hydraulic cylinders of 1200 mm
Two main upper hydraulic cylinders 2x 80 tons, each
Max. Pressure in hydraulic system 250 Bar
Pressure Pressure Pressure Gauge on Press Control Panel
Plate closure speed 1000 mm for 30 seconds
Low speed when squeezed 10 mmv sec
Press Opening Speed \u200b\u200b1000 mm for 30 seconds
Two side hydraulic cylinders 40 tons each
The speed of closing and opening side cylinders 1000 mm for 30 seconds

To install a device for lateral compression (pressure) in height (5 positions) there is a series of holes on the racks of the frame of the press, located at a distance of 100 mm from each other.
The device for lateral pressure is fixed with special fingers.
Stop the top plate in the upper position - using an end microswitch. (Regulation regulated)
Switching high intersection of the press on a low-terminal microswitch (regulated position).

The press control unit is installed on the frame of the press.
This control unit contains the following components:
2 buttons to turn on and off high pressure
When the upper plate begins to move at low speed, the operator presses the "Start" button, and the pressing cycle ends automatically.
Timer setting the time during which the press must be closed
Emergency stop unit.

OBEL.- P.TWHGeneratorA typeOpa.40 L.

HF power - 40 kW
. Air cooling
. Frequency 13.56 MHz for industrial use
. Output type - symmetrical
. Obnefography All devices capable of radiating microwaves are sacted at the top of the generator and are shielded by special protection.

Generator control unit

PLC Control - Siemens PLC
. Fully automatic control of HF-POWER
. Ability to have several heating modes for details of various shapes for complex parts.

Safety

In accordance with the requirements of the EU. Safety is a fencing around the press and a generator at a distance of 1000 mm. The side of the loading side of the fence is lighter and opens for the supply of blanks.

Some advantagesOBEL.- P HF.

OBEL-P generator and press are produced by the Obel-P group in Denmark

More than 60 years of experience in the production of generators and presses
There is no HF interference from the generator or press (influence on radio waves)
Fixed frequency 13.56 MHz
Symmetric output for the effective distribution of HF energy throughout the area of \u200b\u200bthe workpiece.
Fully automatic control of the RF generator (Siemens PLC)
Automatic HF-Poser compensates for power consumption drops and retains its maximum value during the entire exposure process (drying)
Computer control for the RF generator
Ability to use multiple management programs for very heavy and difficult blanks.
Powerful frame of the press.
High quality hydraulics, power supply and cylinders from Danish and German suppliers.
Microswitches such as Omron.

High frequency (TWH) currents have a lot of useful properties. The main thing is the ability to pass along the surface of the conductor without affecting its core. Thanks to this feature, the surface of the conductor through which high-frequency currents pass is heated quickly and up to high temperatures.

With the higher the frequency of currents, the faster and stronger the conductor is heated.

1 Application of TWH in industry

High frequency currents are currents in which the number of oscillations in one second reaches one million. Voltage in TDC machines can be from one thousand to several hundred thousand volts.

TWH devices are widely used in industry.

with the help of TVH in induction furnaces, there is melting of any metal. The convenience of this method is that it can be applied under a complete vacuum. This avoids the oxidation and pollution of metals;
using high-frequency currents produce hardening metal. The peculiarity of this hardening is that only the shell of the product is tempered, the inner part remains plastic. It protects the metal from fragility;
using TVF devices weld some details in the automotive industry.;
in medicine, high-frequency currents are used to treat skin diseases, the method of improving blood circulation in capillaries, joints, spine, heating internal organs;

The latest invention based on high-frequency currents was the machine for welding stretch ceilings from PVC. This device we will look at more.

1.1 TSF devices for the device of stretch ceilings PVC

Stretch ceilings today rightfully occupy one of the first places in the interior of the house. They have high aesthetic qualities, quite quickly mounted, allow you to hide ceiling communications. In addition, patterns, drawings and, even, own photos can be applied on the stretched canvases.

With the help of coloring and formation of cloth, designers decide the issues of a visual increase in space, artificial point lighting of premises and much more.

The only problem is that the width of the PVC rumble for stretch ceilings does not exceed 3 meters. And if the cloth from the tissue is connected by the weaving method, then the seam on PVC is similarly impossible.

Seam on stretch ceilings from fabric or PVC should be:

durable. The canvas on the ceiling has a sufficiently high tension coefficient. Therefore, the seam on fabric or PVC should be so strong so as not to be broken and did not stretch during installation, no time;
invisible. The beauty of stretch ceilings is precisely the fact that they look like a single canvas of a beautiful cloth. Any bend or significantly reduce the aesthetics of the interior.

It is these two tasks that can be flawlessly solve with the help of a TWH apparatus for stretch ceilings.

1.2 Device

TSF machines consist of the following mechanisms:

The mechanism of suppression of the electric arge. In the event of the appearance of sparks or, as a result, the electric arc, the canvas can be buried. In addition, there is a possibility of failure of the welded electrode itself. Therefore, the machine is equipped with an automatic regulator, which reduces the generator power, in case of risk of sparks.
Mechanism for suppressing interference. Since high-frequency currents create their own high magnetic field, but at the same time are sensitive to other magnetic fields, the machine is equipped with a screen, creating, a kind, protective dome over a separate TVF device.
The safety device protects the machine from the voltage drops in the power grid.
Welded device. This mechanism connects PVC to the canvas by means of dielectric heating.
Drive mechanism. Most machines are equipped with two types of drives: foot and pneumatic. The pneumatic drive is more accurate and more secure, as it allows you to protect the machine and the web from the sintering and other service personnel errors.
In addition, each machine provides for the presence of an inverter, which, in fact, generates high-frequency currents.

All these mechanisms are installed on the bed representing the table. Such. the bed allows you to conveniently lay a cloth for welding and avoid bends or curvatures.

1.3 Principle of Job

The principle of operation of TDC machines for stretch ceilings is based on the dielectric heating of two canvases in contact with each other. In the process of welding in some cases, additive materials can be used.

Such devices allow spike to produce:

fast;
evenly;
securely;
werewing only specific points.

The spike process is performed by two electrodes through which the dielectric current passes.

Spike can be produced in three ways:

jack;
vansel;
T-shaped seam.

TSF Machines manufactured by China for PVC in industry Apply not only for soldering tension ceilings. With their help make:

airbags for cars;
children's inflatable balls and circles;
beach slides and attractions, type "Banana";
beach bags and mattresses, and other PVC products.

1.4 How does the TTH machine work? (video)

2 TWH machine with their own hands

Make a full-fledged device for the soldering of stretch ceilings and other PVC cauldons with their own hands are quite problematic, if not to say it is impossible.

After all, it is necessary to make it necessary to make it not only to decide how to receive high-frequency currents, but also to produce or acquire the mechanisms for suppressing an arc, interference suppressing, to install a press, drive and much more.

As for the simplest inverter, working on the basis of Foucault currents for melting and hardening the metal rods, then he can be made of a conventional welding inverter.

Welding is generally a fairly universal device. With its help, the production and processes of welding and cutting of the metal are carried out, pyrolysis processes and, as it turns out, to obtain high-frequency currents for rapid melting of metals and not only.

In the process of manufacturing the apparatus, with your own hands, except for the welding inverter itself, the mechanism of water cooling and the coil, which is best made from a copper tube with a cross section of 10 mm. It is this coil that will perform the function of the inductor, or the contour with induction (high-frequency) currents.

2.1 Production process

Inside the welding inverter you need to carry out a cooling system. It can be aqueous or fronic cooling, powerful coolers or heat sink radiators.
From the copper tube with a cross section of 10 mm and a long 1 meter twist the spiral - inductor (in appearance it resembles a boiler). Both end of the tube, long 10-15 cm, should be curved in one direction and be on the same level.
Close both end of the inducer in the welding inverter grooves for welding cables.

With the help of such an induction device made by their own hands from the welding inverter, it is possible to smell the rods from the metal with a diameter of up to 10 mm for 20-30 seconds. After this time, the metal will redden and will be ready both for forging and hardening the upper layers.

The more turns of the inductor, the higher the frequency of induction currents.

2.2 How to use the machine?

Use the TSF machine, made with their own hands, is quite simple.

Turn on the inverter cooling system.
Turn on the inverter itself.
Let's prevent the rod metal inside the inductor, so that it does not touch the walls of the coil itself.
We are waiting for 20-30 seconds until it blooms the metal, and start working with it.

2.3 Homemade TVF devices in everyday life

It is quite simple and cheap you can make a homemade heating system or water heater based on induction currents. To do this, it is enough to wind the inductor around the pipe (the optimal number of turns is 90) and turn it on.

In this case, it is important to ensure that the inverter is not turned on if there is no fluid in the system, or it does not circulate. Such an oversight can lead to the melting of the pipeline system itself.

When it comes to the furniture from the massif, we are talking about a hot joinery press. This type of press has perfectly proven itself and, depending on the requirements, can be staffed in the most different way.

The system includes:
- high frequency current generator
- Press
- hydrostation
- Remote Control.

System Features:
- use of high-frequency heating of the dielectric medium
- automatic PLC control
- boot and unloading tables
- time exposure of one shield size 2440 * 1200 mm, 1-3 minutes
- Ability to glue a shield of 12 meters long by consistent warming up

Operation of the press:
1. The billets are wrapped in glue stacked on the feed table.
2. Pressing the button, the automatic feed pusher supplies the workpiece into the press.
3. Vertical pressure on the workpiece is created by vertically located hydraulic cylinders, which are automatically turned on, after which the blanks are compressed by side presser hydraulic cylinders and bonding them (blanks) into a solid shield.
4. Tweed is turned on, glue is heated, (the heating time is set by staff) during heating the upper and lateral compression of the blanks, by means of hydraulic cylinders, occurs during heating.
5. After heating, the pressure of the hydraulic cylinders is automatically turned off, the press opens, and the finished shield comes out of the press.

Brief specifications

Technical characteristics of the press

High Frequency Generator Specifications 30 kW

Power	AC 38 V, 50 Hz, 3 phases
Incoming power	40 kva
Power output	30 kW
Frequency	6.78 MHz
Electric lamp	FU924 FA.
Glow voltage	AC 7.5.
Switching mode	Condenser variable capacity
Type of cooling	Air
Setting mode	Capacity variable
Protection type	Two-stage heat heating, overheating warning, electrical Fan Protection, Door Switch Protection
Output mode	One-sided output

http://mwm.com.ua/catalog/pr_129

See also:

Press with twege heating for the production of glued shield

6. 2 Production of a furniture shield. 1 Materials for the manufacture of furniture shield. Technological sequence used equipment