DE1931651C - Method and device for the continuous production of explosive cartridges - Google Patents

Description

which the filled cartridges are manually closed and packaged.

The object of the present invention is to eliminate the disadvantages mentioned and to provide a method

shaped press die (15) encloses the filling pipe (3). 40 and to provide an apparatus for the continuous manufacture of explosive cartridges, wherein a Use a simple plastic tube without a cap and manufacture the entire cartridge in one Operation can be carried out. 45 The subject of the present invention is therefore

The present invention relates to a method, a method of the type mentioned at the outset, the there / to continuous production of explosives is characterized by. that the plastic drums Help by conveying a strand of explosives with a hose over the filling pipe by extruding a filling screw, which the explosives through testifies, the extrusion speed equal to that

Conveying speed of the explosive strand is.

a pair of screw conveyors is fed, filling ii a plastic hose with a filling tube, periodic interruption of the movement of the explosive cord, Closing and severing of the filled piece of tubing and a device for implementation this procedure.

Such a procedure is already from the German Utility model I 972447 known. It is particularly suitable for the production of large bore hole cartridges, however, it has the disadvantage that a plastic tube made before the cartridges are manufactured needed, which open, for example, like a seam in the longitudinal direction by a closure and close Hiasst, which works on the tongue and groove principle. This closure must first

opened and, after filling in the explosives, it is advantageous that the air closes from the free piece of hose nistssc must be closed again. Oust the so educated. Veivhluß contributes to the requirements of the practice a stable envelope in no way

5 ° hdem by the screw conveyor pair and the

Filling screw a predetermined amount of explosives has been conveyed and leaked into the comprehensive plastic tube, the movement is interrupted the filling screw and separates the explosive cord preferably thereby from the filling tube mouth. that you short the filling screw in a known manner rotates against the conveying direction. The screw conveyors are advantageously at a standstill.

A pull-off device, in particular a pull-off tape for the plastic tube, ensures a constant haul-off speed which is preferred

When closing the plastic bag it is

The subject matter of the present invention is furthermore a device of the type mentioned for

Carrying out the method that by a housing to which the filling tube is connected, and a Extruder is characterized, the extrusion head is arranged so that its annular press die Filling pipe encloses.

The invention is described below with reference to the preferred exemplary embodiments shown in the figures explained in more detail.

Fig. I shows the schematic representation of an inventive Device in plan view and side view;

Fig. 2 is a longitudinal section through the twin screw conveyor (metering screw);

Fig. 3 is a longitudinal section through the Füllschnckkenuehäuse and the auger neck;

4 shows the filling tube mouth provided with a ring;

FIG. 5 shows the one provided on the mouth of the filling pipe

finds to produce. As is well known, it can be hardened If there is friction, move explosives to a higher level. Through this annular gap 12 can always be a thinner The explosive film will leak out of the housing. this

5 is achieved by the fact that at the moment of counter-turning (i.e. turning to the left) the filling screw 2, part of the explosive is withdrawn and enters the annular gap 12. The one at renewed Clockwise rotation of the filling screw 2 in the Rmg-

lo crevice 12 remaining explosives is then used during a later turn to the left is replaced by fresh explosives within certain limits. The trodden Explosives fall into a collecting tray and can be returned to the feed hopper 11.

At the end of the filling pipe 3 there is preferably an outwardly rounded ring 13 on the outside thereof This located on the filling pipe 3

intended. -

Ring 13 has the task of making the plastic

KiiiL hose 7 to be cut to an exact diameter.

The manufacture of explosive cartridges requires 20 len and the plastic tube 7 Explosive material through a hopper into a housing. required indoor air, i.e. the air that is between mV which he blown under the action of a screw conveyor plastic hose7 and filling pipe3 kenpaars4 is conveyed into a housing 1 and there is to be turned against the conveying direction. the duTvh a filling screw 2 in the form of a strand arr filling tube mouth provided ring 13 is with mehredur ^: i a filling pipe 3 is pressed out. At the same time 25 Ren grooves 14 are provided, which cause the inside directly on the filling pipe3 with the help of a hose7 between two explosive strands5 with a spray head6, the air in which the compressed air is present during the closing and tr:. 15 surrounds the Füllrohr3 in a ring, a separation can escape.

Plastic tube 7 is generated. The extruding sol- The length of the exiting, made of explosive strand

rather tubular film is known per se, for example 30 and plastic tube existing cartridges is ■ dj> of the German patent 1 035 032. scanned photoelectrically and can be made through

The blast-controlled adjustment of the electrical sampling device is placed in this plastic tube 7 st. ff filled directly through the filling pipe 3. Which are determined by. After a predetermined length d> * conveyor screw pair 4 and the filling screw 2 of the strand covered by plastic tube 7 auscT / ougte The conveying effect on which the explosive 35 has stepped is achieved by means of a photoelectric impulse Moffstrang comprehensive plastic hose 7 over-filling screw 2 stopped and preferably through gnaw. Briefly turn the explosives strand on the filler to the left

The delivery of explosives is separated with the help of a pipe mouth. At the same time, the För-S.hnecken is not without danger, especially when the pair of snails4 is also still. During the shutdown of a twin screw pair, a filling screw is in a position or when the filling screw 2 is turned to the left, an enclosed space is supplied with explosives. Relieving the pressure of the already filled cartridge by means of a trigger device is required8. preferably a take-off belt, further a support channel 10 provided through which. A vacuum is created in the empty piece of hose that is now emerging, into which a certain amount of explosive is constantly flowing. This relief channel 10 should therefore preferably open into the feed funnel II of a hose section before the normal filling level is cut off, an air displacement device. This ensures that the filling is actuated. This results in the empty tube stucco central screw 2 is always filled and the filling tube at the _r-to-center along and displaced by a slight Hemund occurring strand a constant Austrittsge- v.egung 50 in the axial direction which has inside the Rauschwindigkeit. This is particularly important. The air that is displaced is higher than that in the calibration ring 13 so that a plastic tube with evenly provided grooves 14 is formed together with the inner wall thickness. of the hose to the rear end of one above the

By attaching a relief channel !. 10 55 tube guide rollers located in the filling tube 3 are also fed into the housing 1 of the screw feeder 2, where it exits. This air also avoids dangerous pressure build-ups. Cooled down through the filling pipe3. After the hose zenschnittsverigungen the discharge channel 10 can be brought together, any amount of explosive conveyed by the filling impulse in the housing 1 can be set in motion by means of photoelectrider pressure in the housing 1 and the amount of explosive conveyed by the filling impulse 2. This will be presented. Such Quersclinittsveränderung preferably ^e::... Ie so-called "Doppelklipsniascliinckann used, for example by built-in contact, Schic- that u essentially of a double forth Einrichtur ä" s are obtained sixteenth Lultverdriingungsmechanismiis, two clip devices

iun and an intermediate I run »'■ ·! k / ι-ιιμ.

_l inter alia LJ ,! I Il! _{Till Ii L 1} ,, in lutlLKil neiiK.ii. . “» .... ». ρ _σ

Between the Füllschneekengehause and the Füllschnck- gen and one in between

and severing device 9 are moved at the same speed to avoid warping or tearing of the hose. For this purpose the air displacement and separation device is preferred mounted on a mobile trolley and is at the beginning of the disconnection process with the help of an electrical Clutch coupled to the drive device of the haul-off belt. Instead of the electric Clutch, a differently actuated clutch can also be used. After the During the separation process, the carriage automatically moves mechanically or pneumatically into the starting position back.

This not only makes it possible to completely remove explosive cartridges, in particular large bore cartridges to manufacture safely and without personnel expenditure, but it will also be cartridges with more uniform Filling and exact dimensions.

1 sheet of drawings

Claims (1)

Invoice, as there is a risk that it will be improperly or a somewhat rough treatment rips open The danger even exists during the Production on the cartridge machine there Explosive mass, to ensure a complete filling of the shell, under a certain pressure in the hose is introduced, so the closure is under tensile stress from the outset. Apart from that such a hose with tongue and groove is relatively expensive to manufacture. He's waiting the cartridge machine is not available in endless form, but only in certain lengths, which are wound on drums or the like. Once such a hose section has been processed, the cartridge, 5 niermaschine shut down and threaded a new hose section. The procedure works so not completely continuous. This known method is carried out with: a device that has a filling tube with angeordao therein Neter filling screw and a pair of screw conveyors arranged at right angles to it and a device for Closing and separating and has a pull-off device for the filled hose. Large diameter cartridges were also used of claims *! up to 3. * 5 so far mainly made manually. As a filling characterized in that when closing the machine was a housing with two against each other des Kunststoffsch'a.I use the air from the open air of the running snails which bpreng Hose piece is cramped. conveyed substance into a filling tube. On this full pipe 5. Device for carrying out the method was manually a one-sided closed art rens according to one of claims I to 4 with e-.nem 30 fabric hose pulled up, which represents the cartridge case and filling tube with Fü.ischneckc arranged therein. The filling augers were with the help of a FuL. to this end, the conveyor screw lever switch arranged at right angles can be actuated. When filling, a pair of ducks and a device to length the filled cartridges and consequently also to close and cut them off and a trigger for the filled hose was estimated and only checked by means of random samples. Uanacn WUR net through a housing (1), to which the filling pipe (3) connects, and an extruder (5), whose
The spray head (6) is arranged so that its ring- Patent claims: I. Process for the continuous manufacture of explosive cartridges by conveying a Explosives strand with the help of a filling screw, which the explosives through a pair of screw conveyors is fed. Filling into a plastic tube with a filling tube, periodic Interrupting the movement of the explosive cord, sealing and separating the filled one Hose piece, characterized in that the plastic hose over the Filling tube produced by extrusion, the extrusion speed being equal to the conveyor speed of the explosive cord is. 2 method .lach claim 1. characterized in that the movement of the explosive strand is periodically interrupted by briefly turning the filling screw counter to the conveying direction. 3. The method according to claim 1 or 2, characterized in that the plastic tube with constant speed is withdrawn.