EP3601941A1

EP3601941A1 - Die removal device

Info

Publication number: EP3601941A1
Application number: EP18713670.0A
Authority: EP
Inventors: Andreas Szabados
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-03-28
Filing date: 2018-03-27
Publication date: 2020-02-05
Anticipated expiration: 2038-03-27
Also published as: HUE059246T2; US10955230B2; DE102017106600A1; EP3601941B1; WO2018178105A1; US20200116464A1

Abstract

The invention relates to a device (2) for drawing a cartridge case (4) in a direction of traction (10) out of an axial borehole of a die (6), which, seen from the axial borehole, comprises an external thread (20), on the outside, for holding the die (6) in a loading press, said device comprising: a supporting plate (12) for holding the die (6) oriented with the axial borehole thereof in the direction of traction (10) and secured against a movement in the direction of traction (10) in a die borehole (18); a lifting plate (14) which is arranged upstream and at a distance (16) from the supporting plate (12) in the direction of traction, and on which a tractive element oriented in the opposite direction to the direction of traction (10) and comprising holding mean is arranged, the holding means being designed to hold the cartridge case on an end of the tractive element (24), which is oppposite the lifting plate (14); and driving means (32, 24) for moving the supporting plate (12) and the lifting plate (14) in the direction of traction (10) and/or in the opposite direction.

Description

Matrizenretter

description

The invention relates to a device for releasing stuck in a die cartridge cases according to claim 1.

Protective shooters and hunters often load empty cartridge cases, which in addition to financial benefits also brings better results than factory-loaded ammunition. To prepare empty cartridge cases is from the

DE 10 2013 020 748 B3 already known a Trimmerkalibrier device with which the inner and outer dimensions of cartridge cases are processed in a die body by means of a mill, which is also referred to as trimming. The firing of a cartridge case usually leads to an increase in the diameter over its entire length and to a longitudinal expansion of the cartridge case.

From DE 400 83 82 C2 a loading press for cartridge cases is known. DE 10 2004 04 64 62 A1 describes a combined setting and trimming die for reloading of cartridge cases. Also from US 3204518 A and US 2571272 A, the reloading of empty cartridge cases is known.

In all these devices, however, there is always the problem that the sleeves stuck in the calibrated die and can not be removed or only by force, the die can be damaged and / or unusable, which in addition to great effort and anger and financial burdens brings. Generally, cartridge cases to be filled should be calibrated by a die prior to reloading. As said, stuck cartridge cases pose a greater problem when removed from the

calibrating tool, namely the die, to be removed. In particular, there is a risk when forming a cartridge case to another degree, the stuck cartridge case is very difficult to remove, especially if the upper edge of the

Cartridge sleeve is damaged. This may be due to material fatigue after repeated loading of the cartridges, but also due to inferior material, too softly designed brass alloy, or improper handling. But even with undamaged sleeve edge, it is quite common that the sleeve from the die can not be removed.

However, the removal of a fixed sleeve from the die in the known devices often fails in practice. The reasons for this are :

Fatigue;

insufficient quality of the brass alloy;

wrong or not vertical drilling and thus skewing of the thread.

The force to remove a stuck sleeve from the die exceeds the loading capacity of the used means, which usually ends with the locking screw being removed from the threads of the die

Cartridge bottom rips. To remove the then stuck sleeve takes considerable effort and effort, bringing the polished

Inner surface of the die is usually damaged and the die can thus no longer or only conditionally used. The template rescue according to the current state of the art is uncertain and often fails for reasons mentioned above. After a

Failed action, the removal of the sleeve on the tool is very expensive and can damage the expensive die, making it often unsuitable for further use, as its internal

Change tolerances. The calibration tolerances of a cartridge are extremely small, which has two main reasons: 1. Safety of the used rifle / pistol / revolver and thus the safety of the persons operating this equipment

2. The accuracy of the projectiles, which is also an absolutely necessary safety factor in many ways.

The object of the invention is therefore to provide a device with which stuck in a die cartridge cases can be safely removed without the die is damaged by it. This object is specified by the in claim 1

Characteristics solved. Advantageous embodiments and further developments of the invention can be found in the dependent claims.

The basic idea of the invention is at a distance from one another

To arrange support plate and a lifting plate, wherein in the support plate, a die is screwed, which accommodates the to be treated, stuck cartridge case. The die can be positioned with respect to this plate by an external thread and optionally additionally fixed by a lock nut. The lifting plate and the support plate can be removed by drive means from each other. These

Drive means can be manual or electrically automated type. Preferably, the lifting plate and the support plate by

Drive means in the form of jackscrews away from each other, which are screwed into the support plate and thereby push the lifting plate away from the support plate. Next, a tension element is held on the lifting plate with holding means, which is to be pulled out of the die

Cartridge sleeve holds on the lifting plate. If the lifting plate is now moved away from the support plate via the drive means, so also held on the support plate die remove from the held on the lifting plate cartridge case. The lifting plate thus comes to a passive lifting function.

The tension element with the holding means may comprise as holding means a thread, which in a sleeve bottom of the cartridge case

is screwed in. In this way, the tension element holds the

Cartridge sleeve on the lifting plate and supports it there. If the drive means comprise jackscrews in the above-mentioned manner, the two jackscrews can be screwed in evenly to lift the lifting plate, which causes the jacking screws to lift

Remove the lifting plate from the support plate and pull the cartridge case out of the die using the lag screw in the bottom of the case. The die in turn is held on the support plate as already explained. In this way, the cartridge sleeve holding the tension element is functionally relieved, so that the power transmission to the sleeve bottom trouble-free and optimal design. Any existing hole and minimum errors, such. As a crooked hole, and material defects, quality problems only play a minor role. The specified device protects the inside and outside of the die. In this case, the support plate for holding the die can be made of simple and inexpensive materials.

An alternative to the above jackscrews

Drive means, for example, the support plate and the lifting plate would be easy to press apart with a vise. Alternatively, the support plate could also be held in a vice, in which case the lifting plate and the support plate are pressed apart with the above-mentioned jackscrews.

According to a further embodiment of the invention, the lifting plate and the support plate can be positioned by guide columns relative to each other, so that the plates can not be rotated against each other and the handling of the Matrizenetters is facilitated in the fixed position of the plates. The lifting plate is long since the guide columns relative to the support plate displaced. Finally, it should be noted that the screws for adjusting the distance between the plate and the lever plate can also be wing screws, so that the device can be actuated without tools.

According to one aspect of the invention, an apparatus for drawing a cartridge case in a pulling direction comprises an axial bore of a die which, on the outside, has an external thread from the perspective of the axial bore. DE for holding the die in a loading press has a support plate for holding the die aligned with its axial bore in the pulling direction and secured against movement in the pulling direction in a die bore, seen in the pulling direction with a distance in front of the support plate arranged lifting plate, in which a tension element oriented counter to the pulling direction is arranged with retaining means, wherein the retaining means are arranged to hold the cartridge shell at an end of the tension element opposite the lifting plate, and drive means for driving the support plate and the lifting plate apart in and / or against the pulling direction ,

In a development of the specified device, the holding means may comprise a thread which is screwed into the cartridge case.

In an additional development of the specified device, the tension element may be a screw with a screw head, which is screwed against the pulling direction in the lifting plate. In a particular embodiment of the specified device, the drive means may comprise a screwed in the pulling direction by the support plate jackscrew, which is supported on the lifting plate, wherein the lifting plate is movable by screwing the jackscrew into the support plate in the pulling direction.

In another embodiment of the specified device, the drive means seen from the jackscrew opposite to the die comprise a screwed in the pulling direction by the support plate further jackscrew, which is supported on the lifting plate, wherein the lifting plate by screwing the two jackscrews in the support plate in the pulling direction is movable.

In a further development of the specified device, a distance between the two jackscrews from the die bore at right angles to the pulling direction can be the same. In a still further development of the specified device, at least one jackscrew or all jackscrews can be thumbscrew. Alternatively or additionally, the jackscrew or all lever screws can be aligned in the guide direction.

In yet another development of the specified device, the two jackscrews and die hole can be arranged in a plan view of the support plate and the lifting plate in the pulling direction along a straight line.

In an additional development, the specified device may comprise a lock nut which can be screwed onto the external thread of the die for fixing the die to the support plate. In this case, the lock nut can optionally be arranged on a side facing away from the lifting plate of the support plate.

In a further additional development of the specified device, the support plate and the lifting plate can be held out against each other in the pulling direction.

In a preferred embodiment of the specified device, the guide may comprise at least one linear rail on which the lifting plate and the support plate are held displaceable relative to each other. Particularly preferably, the guide can comprise at least four linear rails, which are arranged point-symmetrical to the die bore. In this case, at least one linear rail can be fastened to the support plate or the lifting plate.

In the following the invention will be explained in more detail by means of exemplary embodiments in conjunction with the drawing. It shows:

1 shows an apparatus for pulling a cartridge case from a die according to a first embodiment; Figure 2 shows an apparatus for pulling a cartridge case from a die according to a second embodiment; Figure 3 shows an apparatus for pulling a cartridge case from a die according to a third embodiment; Figure 4 shows an apparatus for pulling a cartridge case from a die according to a fourth embodiment; and

Figure 5 is a plan view of the apparatus of Figure 4. Like reference numerals in the several figures indicate like parts and will be described only once.

1 shows a device 2 for pulling a cartridge case 4 from a die 6, as it is for example from DE 10 2013 020 748 B3, according to a first embodiment. Such matrices 6 are used in the field of shooting sports and hunting when refilling empty cartridges in load presses and are well known in the art. For a closer view of the structure of the die 6 should therefore be omitted.

The die 6 has, in a manner known per se, a central axial bore into which a cartridge case 4 for trimming and calibrating

can be pressed. Remains the cartridge case 4 in the central bore, however, stuck and can not be easily pulled out, the die 6 with the cartridge case 4 stuck in it is unusable. The cartridge case 6 protrudes usually with its bottom 8 out of the die 6, so that the bottom 8 of the die 6 protrudes. Here's the below

described device 2 with the idea of saving such a die 6 by the cartridge case 4 stuck in it is pulled out in a pulling direction 10.

The device 2 has a support plate 12 arranged normal to the pulling direction 10 and a lifting plate 14 arranged normal to the pulling direction 10, both of which are arranged in the pulling direction 10 at a predetermined spacing 16 from one another. The support plate 12 has a running in the pulling direction 10

Matrizenbohrung 18 with an internal thread not shown in the figures, in that the die 6 with an external thread 20, which is formed in a conventional manner to the die 6, can be screwed. The die 6 is doing with the bottom 8 of

Cartridge sleeve 4 directed to the lifting plate 14 screwed into the support plate 12. The die 6 in a screwed into the support plate 12 according to this rule state is shown in the figures.

The lifting plate 14 has a running in the pulling direction 10

Zugschraubenbohrung 22 with a likewise not shown in the figures further internal thread. In this Zugschraubenbohrung 22 is opposite to the pulling direction 10 concentric with the

External thread 20 of the die 6 arranged lag screw 24th

screwed. An opposite to the pulling direction 10 seen end of the lag screw 24 is also in the bottom 8 of the cartridge case 4th

screwed. For this purpose, if the lag screw 10 is not as

corresponding tapping screw is executed, a corresponding bottom hole 26 are formed by the bottom 8 of the cartridge case 4 in advance or cut. The lag screw 24 is used as a pulling means for pulling the cartridge case 24, wherein on the traction means a holding means in the form of a screw thread is formed. As an alternative pulling means, for example, a gripper can be used.

In order to screw the lag screw 22 to the lifting plate 14, the lag screw can be at her the cartridge case. 4

have a screw head 28 opposite end. In an analogous manner, a lock nut 30 can be screwed onto its external thread 20 and braced against the support plate 12 to increase the mechanical support of the die 6.

In the manner described above, the support plate 12 and the

Lifting plate 14 on the die 6 and held therein

Cartridge sleeve 4 held against each other mechanically. To the Cartridge 4 in the pulling direction 10 to pull out of the die 6, the support plate 12 and the lifting plate 14 only in or against the pulling direction 10 are moved apart, what with suitable drive means, such as a not further

could happen vice.

In the present embodiment, the drive means are provided with a first jackscrew 32 and a second jackscrew 34, respectively provided by a first jackscrew hole 36

or a second Hebeschraubenbohrung 38 through the

Support plate 12 are screwed in the pulling direction 10. The two jackscrews 32, 34 are point-symmetrical with the

Matrizenbohrung 18 arranged as a center of symmetry to each other. The jackscrews 32, 34 are screwed into the support plate 12 so far that a 10 seen in the direction of pull front end touches the lifting plate 14. In this state, by further screwing the jackscrews 32, 34 in the

Hebeschraubenbohrungen 36, 38, the lifting plate 14 of the

Support plate 12 are removed, so that the above

Plate spacing 16 increases and so the cartridge case 4 from the

Die 6 is pulled. As jackscrews 32, 34 thumbscrews should preferably be used, because this without

Leave the wrench operated. It is not necessary, however, so can the jackscrews 32, 34 also heads with screws 35 form, which are moved with a suitable wrench.

When using the device 2 for extracting the

Cartridge sleeve 4 from the die 6, the support plate 12 should always be largely parallel to the lifting plate 14 to prevent tilting of all acting in the device 2 screws. This is on the one hand ensured by the aforementioned point-symmetrical arrangement of the jackscrews 32, 34, so that the jackscrews 32, 34 and the die bore 18 are arranged in a plan view of the device 2 in the pulling direction 10 on a common line are. But also the aforementioned locknut 30 avoids the tilting alternatively or additionally effective.

In the device 2 according to the embodiment of Figure 2, the lock nut 18 is omitted by way of example. This is readily possible because the die 6 with its external thread 20 in the

Internal thread 6 of the support plate 5 forcibly guided in the pulling direction and at a sufficiently low pitch of the external thread 20 is also fixed.

In the device 2 according to FIG. 3, the jackscrews 32, 34 are screwed into the lever plate 14 counter to the pulling direction 10. Although the device 2 of Figure 3 is not so easy to place on a base such as a table, but bothers when turning the

Lifting screws 32, 34, the die 6 is not. The selection of the embodiment of the device 2 according to FIG. 2 or FIG. 3 should be application-dependent.

FIGS. 4 and 5 show an embodiment of the device 2

starting from the device 2 of Figure 3 shown. However, the training shown can also be readily in the

Implement devices 2 of Figures 1 and 2.

In the device 2 of FIGS. 4 and 5, the lifting plate 14 is held opposite the support plate 12 by a guide which is independent of the aforementioned screws. The guide comprises four linear rails, which in the present embodiment as four

Guide columns 40 are executed. Each guide column 40 has at its seen in the direction of pull 10 front and rear end of a hexagonal head 42 which either integral with the

Guide column 40 may be formed or screwed onto the guide column 40 as a nut. The guide column 40 are arranged with respect to the die bore 18 seen point-symmetrical to each other. The guide columns 40 may on the support plate 12 or the

Lifting plate 14 to be fixed while the other accordingly

Lifting plate 14 and support plate 12 along the

Guide columns 40 can slide. Although not shown in FIGS. 1 to 3, guide columns 40, as already mentioned, can also be installed in these exemplary embodiments.

The device 2 can be used in use, for example, as follows:

First, in the bottom 8 of the stuck in the die 6

Cartridge 4, the bottom hole 26 drilled. Then a thread with a tap in the bottom hole 26 of

Cartridge sleeve 2 cut. Thereafter, the lag screw 24 is guided by the Zugschraubenbohrung 22 of the lifting plate 14 and in the

cut threads of the bottom hole 26 of the cartridge case 2 screwed. Then, the two jackscrews 32, 34 in the corresponding Hebeschraubenbohrungen 36 either on the

Support plate 12 is screwed in Figures 1 and 2 or on the lifting plate 14 in Figures 3 and 4 and the die 6 is with her

External thread 8 stabilized in the die bore 8. In this case, the support plate 12 may preferably be fastened in a vise. Then, the two jackscrews 32, 34 evenly

screwed so that they are supported on the lifting plate 14 in Figures 1 and 2 and the support plate 12 in Fig. 3 and 4 and the lifting plate 14 of the support plate 12 in and / or opposite

Move the pulling direction 10 away. As a result, the cartridge case 4 is pulled out of the die 6 by the tension screw 24. Is the

Cartridge sleeve 4 freed from the die 6, the Zugehraube 24 is removed from the bottom 8 of the cartridge case 4 and the die 6 can be reused.

In short, the invention thus provides a simple

Ability to remove stuck cartridge cases from a die. It will be apparent to those skilled in the art that modifications of the invention are readily possible.

Claims

claims

1. Device (2) for pulling a cartridge case (4) in a pulling direction (10) from an axial bore of a die (6) which externally has an external thread (20) for holding the die (6) in a loading press from the perspective of the axial bore , full :

a support plate (12) for holding the die (6) aligned with its axial bore in the pulling direction (10) and secured against movement in the pulling direction (10) in a die bore (18),

- A in the pulling direction (10) seen with a distance (16) in front of the support plate (12) arranged lifting plate (14) on which an opposite to the pulling direction (10) aligned tension element (24) is arranged with holding means, wherein the holding means set are to hold the cartridge case (4) on one of the lifting plate (14) opposite end of the tension element (24), and

Drive means (32, 34) for driving apart the support plate (12) and the lifting plate (14) in and / or against the pulling direction (10).

2. Device (2) according to claim 1, wherein the holding means comprise a thread which in the cartridge case (4) can be screwed.

3. Device (2) according to claim 1 or 2, wherein the tension element (24) is a screw with a screw head, which is screwed against the pulling direction in the lifting plate (14).

4. Device (2) according to one of the preceding claims, wherein the drive means (32, 34) in the pulling direction (10) through the support plate (12) or the lifting plate (14) screwed jackscrew (32, 34) comprise, respectively on the lifting plate (14) and the support plate (12) is supported, wherein the lifting plate (14) or the support plate (12) by screwing the jackscrew (32, 34) in the support plate (12) or the lifting plate (14) in the Pulling direction (10) is movable.

5. Device (2) according to claim 4, wherein the drive means (32, 34) seen from the jackscrew (32, 34) opposite to the die (6) in the pulling direction (10) through the support plate (12) or the lifting plate ( 14) screwed further jackscrew (34, 32), which is supported on the lifting plate (14) or the support plate (12), wherein the lifting plate (14) or the support plate (12) by screwing the two jackscrews (34, 32) in the support plate (12) or the lifting plate (14) in the pulling direction (10) is movable.

6. Device (2) according to claim 5, wherein a distance between the two jackscrews (32, 34) of the die bore (6) at right angles to the pulling direction (10) is the same.

7. Device (2) according to one of claims 4 to 6, wherein the jackscrew (9, 10) is a thumbscrew.

8. Device (2) according to one of claims 4 to 7, wherein the jackscrew in the guide direction (??) is aligned.

9. Device (2) according to one of the preceding claims, wherein the two jackscrews (32, 34) and die bore (6) in a plan view of the support plate (12) and the lifting plate (14) in the pulling direction (10) along a straight Line are arranged.

10. Device (2) according to claim one of the preceding claims, comprising a on the external thread of the die (6) aufschraubbare lock nut (30) for fixing the die (6) on the support plate (12).

11. The device (2) according to claim 10, wherein the lock nut (30) in the pulling direction (10) seen behind the support plate (12) is arranged.

12. Device (2) according to one of the preceding claims, wherein the support plate (12) and the lifting plate (14) against each other in the pulling direction (10) out (40) are held.

13. Device (2) according to claim 12, wherein the guide (40) comprises at least one linear rail on which the lifting plate (14) and the support plate (12) are held displaceable relative to each other.

14. Device (2) according to claim 12 or 13, wherein the guide (40) comprises at least four linear rails, which are arranged point-symmetrically to the die bore (6).

15. Device (2) according to claim 13 or 14, wherein at least one linear rail to the support plate (12) or the lifting plate (14) is attached.