RU2472104C1 - Method of knocking down small arms bullets - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: bullet and its components are knocked down by punch in die with tubular extractor. Bullet rests on tubular extractor while core to be extracted is displaced by punch toward tubular extractor. Note here that bullet jacket stays in die while core is pushed by punch in tubular extractor opening and removed from die. Then, jacket is removed from die by said extractor.

EFFECT: higher quality of cartridge knocking out.

8 dwg

Description

The invention relates to the field of disposal of small arms cartridges, and in particular to a technology for separating bullets and / or their elements into components including a shell, a lead shirt and a core. The method simplifies the separation of the bullet and eliminates the subsequent sorting of bullet elements.

Currently, the disposal of small arms cartridges and their elements is an urgent problem. Inventive activity in solving the tasks is aimed at creating a technology for the dismantling of ammunition and their individual elements, ensuring safety and environmental requirements of the process, while reducing energy and labor costs by using equipment that is simple in design.

The invention is known (RF patent No. 2089841 dated 09/10/1997), which describes a method for dismantling bullets with an empty shell nose and core, including notching the shell nose in a stepped matrix, detaching the nose and moving the shell from the animated part of the core, removing the shell from the core .

A positive solution in this method is the centering of the bullet over a large diameter and placement in the hole of the matrix. This eliminates misalignment of the bullet with a small diameter of the matrix and punches.

The disadvantage of this method is to perform dismantling in different matrices, which requires the transfer of the shell to carry out the next operation in another matrix on additional equipment.

There is another way to dismantle bullets of small arms cartridges according to the patent of the Russian Federation No. 2399868 dated 09/20/2010. By this method, the bullet is partially inserted into the guide sleeve with the nose in the matrix. Then, a punch is applied to the open part of the core and its nose is guided through the shell and the calibrated hole of the matrix.

At the same time, the nose with the part of the lead shirt and the core is separated from the bullet and pushed through the calibration hole of the matrix. During the reverse stroke of the punch, the remaining part of the shell and the lead shirt are removed from it.

A positive solution in this method is that the bullet nose is separated in one stroke of the punch, the core is removed from the shell and the shell is removed from the lead shirt from the punch.

The disadvantage of this method is that when the nose of the shell is removed and the core is removed from it, it is partially located in the guide sleeve and partially in the tick-borne gripping organ of the transport rotor. This does not guarantee the necessary centering of the punch, bullet and matrix during dismantling and leads to instability in the size and shape of the shell and its nose. With this method of dismantling, the bullet is divided into a shell with lead, a core and a nose with lead. In the future, the spout with lead requires their separation and sorting.

A known method of separating lead from a metal shell in a rotary drum furnace at a temperature of 680-740 ° C for 5-10 minutes with the separation of molten lead and metal elements (RF patent No. 2318177 from 02.27.2008).

A significant disadvantage of this method is the high energy consumption and the release of environmentally harmful vapors into the atmosphere.

The objective of the proposed method of dismantling the bullet is to simplify and increase the stability of the process of dividing the bullet into its constituent parts. Dismantling the core from the bullet is carried out in one operation and in one matrix.

The technical result obtained from the invention consists in the qualitative separation of the bullet into its constituent elements without further sorting.

More specifically, the invention is illustrated by drawings, which show:

Figure 1 - the initial position of the bullet and tool;

Figure 2 - position of the bullet with the support of its end part on a tubular ejector;

Figure 3 - position of the elements of the bullet after dismantling;

Figure 4 - position of the shell with a lead jacket after its removal from the matrix;

Figure 5 - position of the bullet while resting its animate part on a tubular ejector;

6 - the position of the elements of the bullet after dismantling when resting on a tubular ejector its animated part;

Fig.7 - the position of the shell and the lead shirt before the separation of lead and its position after separation from the shell;

Fig. 8 is the position of a part of the shell after it is removed from the matrix.

In the drawings, the positions are indicated:

1 - bullet; 2 - matrix; 3 - punch; 4 - a shell with a lead shirt; 5 - core; 6 - deformed shell with a lead shirt; 7 - a ring; 8 - tubular ejector; 9 - shell nose; 10 - a punch with a conical end face of its working part; 11 - part of the deformed shell; 12 - part of a deformed lead shirt; 13 - tubular ejector with an inner diameter equal to the inner diameter of the shell.

The method of dismantling a bullet of small arms cartridges is as follows. Bullet 1, oriented upward with its nose, is fed into the hole of the matrix 2 by the punch 3 and abuts against the tubular ejector 8 with its end part. With a further stroke, the punch 3 deforms the animated part of the shell 4 with a lead jacket. In this case, the deformation force by the punch 3 is transmitted to the conical part of the core 5. The core moves in the shell with a lead jacket and cuts off the ring bend of the shell end relative to the hole of the tubular ejector 8. A further stroke, the punch 3 pushes the ring 7 and the core 5 into the hole of the tubular ejector, from where they are removed into the container. Then the punch 3 and the tubular ejector 8 are moved in the opposite direction and remove the deformed shell with a lead jacket, which are sent to the container.

This method also allows the dismantling of the bullet with less deformation of the remaining part of the shell by placing the bullet in the matrix with the nose down and centering it with the hole of the tubular ejector 8 (shown in Fig. 5).

During the course of the punch 3, it abuts against the end face of the core 5 and moves it towards the tubular ejector. At the same time, as with the similar method according to RF patent No. 2399868, the nose 9 with the part of the lead jacket and the core, which are removed through the hole in the ejector, is separated from the bullet by the inner edge of the hole of the tubular ejector (shown in Fig. 6). In this case, the remaining part of the bullet is completely in the matrix. The remaining part of the shell and lead bullet shirt are removed from the matrix by an ejector (shown in figure 4).

This method also allows the separation of the remaining parts of the shell and the lead shirt mechanically.

After removing the core from the bullet according to the above methods, the remaining part of the shell and lead jacket is a partially deformed height and diameter cylinder layer.

The method is as follows (shown in Fig.7 and 8). The deformed shell portion 11 with the deformed lead shirt portion 12 is fed into the matrix 2, similar to that used in the above dismantling methods. The end face of the deformed part of the shell rests on the end face of the tubular ejector 13. The outer diameter of the tubular ejector 13 is equal to the largest outer diameter of the shell, and the outer diameter of the punch 10 is equal to the largest inner diameter of the shell. Since the shell and the lead shirt were partially deformed when the core was dismantled, the end face of the punch 10 was made conical to ensure reliable separation of lead from the shell and its expansion.

With a further course, the punch 10 enters a part of the deformed shell 11 and separates the lead from its inner wall. A portion of the deformed lead jacket 12 is moved toward the hole of the tubular ejector 13. The lead completely separated from the shell is removed by the punch through the hole of the tubular ejector, which is made at a large distance from the end face by a large diameter. This allows lead to be freely removed from the tubular ejector into the container.

The lead-free shell is removed from the matrix by a tubular ejector in the opposite direction. In this case, the punch also moves in this direction. If the shell at its exit from the matrix is on the punch, then it is removed from it by shooting. Shells removed from the matrix are collected in containers.

The positive results of work carried out on experimental equipment according to the proposed method for dismantling a bullet fully confirmed its possible practical application in the production of recycling small arms cartridges.

Claims (1)

A method for dismantling a bullet of small arms cartridges consisting of a shell, a lead shirt and a core, including the operation of separating the bullet and / or its parts into components, characterized in that the dismantling is performed by a punch in a matrix with a tubular ejector in which the dismantled product is placed, while the product rests on a tubular ejector, and the disassembled part of the product is moved by the punch towards the tubular ejector, while the shell of the product remains in the matrix, and the inner element protrudes lkivayut punch into the hole of the tubular ejector and is removed from the matrix, after which the shell is removed from the matrix tubular ejector.

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