DE2745633A1 - SAFETY SWITCH DEVICE FOR EXPLOSIVE FORMING PLANTS - Google Patents

Description

Safety switchgear for explosive equipment

The invention relates to a device which allows an automatic workflow in the case of explosive forming to run, if the safety regulations are complied with, applicable in particular for serial production.

tis are switching devices for explosive forming known in which the ignition source is connected to the detonator of the explosive charge by means of manual actuation of an ignition switch and this is detonated, after the transformation caused by the labor force is controlled acoustically or optically, the worker may initiate further control work processes will.

These switching devices have the disadvantage that they are designed for the production of individual pieces or small quantities and are not suitable for series or flow production.
The safety requirements state that the worker may only initiate further work processes after the ignition switch has been actuated, when the deformation has taken place, so that no unused explosives can escape.
The constant control of the reshaping carried out in series production by the workers represents an unacceptably high psychological burden. There is a risk of error and fatigue due to the monotonously repetitive work processes.

809823/0549

The aim of the invention is to eliminate the psychological Stress on the workforce, especially at the risk of Overtiredness as well as that necessary for serial production Control of the piece time.

The object of the invention is to provide an automatic Control and switching device that complies with the technical safety requirements and thereby the automatic sequence of the explosive uniforming and thus an economically favorable production allows.

The ii. Features of the invention are that the im Part to be reshaped located explosive charge or the Igniter, an ignition switch and a Scha11aufnähmeeinheit assigned. In the Umformtakt the igniter is automatically checked by the ignition switch and at positive test initiated by switching on the ignition current source.

Through the sound of the detonation is over the sound run receiving the signal "conversion takes place" won and the workflow is automatically continued by activating the actuators of the Umiormanlage. at If the explosive charge is not detonated, the workflow is interrupted and an error message is issued signals.

The invention is to be explained in more detail below using an exemplary embodiment.
The accompanying drawings show

iig. 1 device for controlling an automatic Work process in the case of explosive forming

In part 1 to be reshaped there is the explosive charge *, 2 as well as the detonator 5

At the Umformtaiet the igniter * becomes an automatic one Durcttgantsprülung u; with xi the help of a test current subjected, which corresponds to the test conditions for detonators.

809823/0549

lift the igniter 3 intact, se comes the test current to flow and via the combination threshold value switch-preamplifier-actuator the ignition current source is switched on.

i> The ignition current source is designed in such a way that a short circuit current flows and initiates the igniter 3. In terms of equipment, the ignition switch * »is a combination of continuity tester and ignition power source, constructed as a single unit.

1C The detonation of the explosive charge 2 is carried out with the aid of the Schallaufnahn.eeinheit 5 »whose .sensitivity is adjustable is recorded.

The sound recording unit 5 is only ready for operation when the actuator has switched the ignition current source.

This avoids incorrect signals.

The switching signal is processed with the aid of the sound _{pick-up unit i ?, which represents an ivoiabination of carbon microphone adapters,} amplifier actuators, so that the workflow is continued automatically.

if the detonation does not occur, the automatic one is activated Workflow interrupted and an error message given. Wake up safety regulations then proceed with the undetonated cargo.

Ζ ¹ ? By erfindungseemäße device for controlling an automatic operating sequence for explosive Unlormung is provided an apparatus for the serial application of detonating explosives e in äxplosivuinforuiung with the aim of high quantities

2Q can be produced economically while observing the safety regulations.

809823/05 ^ 9

summary

Safety switching device for iSxplosivumiorciananlagen

The iCrfindun ^ refers to the area of the explosion.

The aim of the invention is to eliminate the psychological Stress on the workforce, especially the risk of fatigue and that necessary for series production Reduction of the piece time.

The essence of the invention is that the im to be reshaped Part 1 located explosive charge 2 or the detonator 3, an ignition switch 4 and a sound recording unit 5 are assigned. The detonator is in the üiaformtakt 3 automatically checked by the ignition switch 4 and at positive test initiated by switching on the ignition current source.

Through the sound of the detonation, the sound pick-up unit the signal "conversion takes place" is obtained and the workflow is automatically activated by activating the actuators the forming plant continued. If not succeeded If the explosive charge detonates, the workflow is interrupted and an error message is signaled.

Area of application are in the Öerienfertunu, used Egg forming systems with automatic workflow.

i'ig. 1

809823/0549

Claims (1)

Pat ent claims fc Device for safeguarding during explosive forming, characterized in that an ignition switch (4) is used for automatic checking of the ignition device and connection of the ignition current and a sound recording unit (5) is anteoronet to control the actuators (fa) of the U ml "or mania g e. 1 sheet of drawings I 809823/05 ^ 9 C ^ fGlNAL INSPECTED