EP3106268A1 - Tool case - Google Patents

Abstract

The invention relates to a tool case for storing, cleaning and transporting tools for a rotary tablet press, comprising: - A portable tool box shell, in which at least one tool insert is arranged, wherein - The at least one tool insert has a plurality of holding receptacles for holding tools, wherein - The holding receptacles are formed so that held in adjacent holding receptacles tools are spaced apart so that they do not touch each other, and - The holding receptacles each have at least two trained for receiving differently dimensioned tools holding surfaces.

Description

The invention relates to a tool case for storage, cleaning and transport of tools for a rotary tablet press.

Rotary tablet presses have a rotatably driven rotor, which typically includes an upper punch receptacle, a lower punch receptacle, and a die plate. In the die plate dies can be releasably secured, which have the holes for imaging of the tablets to be produced. But it is also possible that press punches of the rotary tablet press interact directly with holes in the die plate. The die plate can also be composed of several ring segments. The lower punch holder receives in paraxial holes on individual lower punch, which are aligned with the holes of the die plate. The upper punch holder receives in axially parallel holes upper punch, which are also aligned with the holes of the die plate. In the course of the rotation of the rotor, the ram with suitable guides, such as cams, together and are moved by this axially in the upper and lower punch recordings. In the area of one or more pressing stations, comprising, for example, pressure rollers, the press punches are pressed against each other in their respective associated bores of the die plate, whereby powdered material filled into the bores is pressed into tablets.

There is a need, in particular, to store in each case unused press punches and / or dies in a simple manner and if necessary to transport. In the prior art, the storage of dies and punches is usually done in permanently installed storage cabinets. Some of the press punches are also hung loosely in wire baskets for storage, which should facilitate the cleaning and the subsequent drying of the press punches. One Transport of the dies and press punches in these storage cabinets is not possible by nature. A transport of the press ram in the wire baskets is not advisable, since this would lead to damage of the mutually striking press punches, in particular the sensitive punch heads.

For transporting press dies there are also transport boxes with a foam insert in which depressions adapted to the size and shape of specific press dies are formed. This can be prevented during transport, that the press punches are damaged, for example, by striking against inner surfaces of the transport box. Press punches for different tablets to be produced, however, regularly have a different size and / or shape, for example, due to the nature of the rotary press and the desired shape and embossing of the tablets to be produced. With the known transport boxes for press dies only pressing a specific size and shape can be transported.

Matrices are commonly transported in the prior art together with the press dies in one of the transport boxes. For this purpose, the transport boxes often have a widened upper edge, in which the matrices are inserted. The cover of the transport box protects the dies as well as the punches from falling out. A disadvantage of this transport form of the matrices in particular that the matrices are unsecured and therefore against each other during transport, which can lead to damage of the matrices. Furthermore, it is disadvantageous to the above-mentioned storage and transport options for press punches as well as dies that a frequent insertion and removal of the tools for use in a rotary press, but also for cleaning is necessary. This in turn increases the risk of damage and effort.

Out US 5,004,103 A is a transport box for punches and dies known, which can also serve for storage. The transport box includes a removable insert which serves to receive the punches and dies. The rams are inserted into holders designed for a particular size and shape of the ram. The matrices are movably inserted in an upper edge of the insert in the manner mentioned above.

Based on the explained prior art, the present invention seeks to provide a tool case of the type mentioned above, which allows transport and storage of tools for a rotary tablet press even with different size and / or shape of the tools and the tools at the same time from damage protects.

The invention solves the problem by the subject matter of claim 1. Advantageous embodiments can be found in the dependent claims, the description and the figures.

The invention achieves the object by a tool case for storing and transporting tools for a rotary tablet press, comprising a portable tool case shell, in which at least one tool insert is arranged, wherein the at least one tool insert has a plurality of holding receptacles for holding tools, wherein the holding receptacles so formed in that tools held in adjacent retaining seats are spaced apart from each other such that they do not contact each other, and the retaining seats each have at least two retaining surfaces configured to receive differently dimensioned tools.

The tool case according to the invention has a tool case shell, which generally has a lower part and an upper part. The upper part can be moved between an open and a closed position with respect to the lower part, for example, be swiveled. In addition, the tool case shell in particular has a handle comprising a clamp protection, on which the tool case can be carried for transport in particular one-handed. The clamp protection may, for example, include a suitable chamfer and groove, which avoid pinching fingers. In particular, in the lower part of the tool case shell at least one tool insert for holding tools is arranged. As explained above, the basic structure of a rotary tablet press is known. The tools to be transported or stored with the tool case according to the invention may in particular be compression punches, such as upper and lower punches, or dies. The dies can be detachably arranged in a die plate in a conventional manner; they can be screwed, for example, in the die plate, the die then cooperating with bores of the dies in the manner explained.

According to the invention, the at least one tool insert has a plurality of holding receptacles in which tools for a rotary tablet press can be held. The holding receivers are designed such that tools held in adjacent holding receivers are spaced apart from one another and held securely so that they do not touch one another even during transport, and in particular the associated movements and different arrangements in space. The holding receptacles, for example all holding receptacles of the tool insert, each have at least two holding surfaces in which differently dimensioned tools can be received. Thus, a tool of a first dimension, for example, a first diameter, are held by the first holding surface of a holding receptacle and alternatively it can be a tool of a second, different measure, for example, a second, different diameter, held by the second holding surface of the same holding receptacle. It can also be provided on the same holding receptacle, a third holding surface for holding a tool of a third, in turn different measure, for example, a third, again different diameter is formed. Of course, more than three such support surfaces can be provided. The holding surfaces can be formed precisely fitting for the respective tools. The holding surfaces can hold the tools safe to move. In particular, the tools may be held so that they can not be displaced laterally on the tool insert so that they touch each other.

According to the invention, a storage and transport of the tools are possible without the risk of damage especially in the closed state of the tool case. The tools are held securely in their respective position. At the same time, the retaining surfaces of the retaining seats allow the secure holding of tools of different dimensions with only one tool insert in a flexible manner. So it serves a tool insert for receiving and holding tools of different sizes. The tools may differ, for example, in their height and / or in their diameter. In the case of press dies, for example, the height and / or the diameter of the respective punch heads may differ.

The retaining seats may have a circular cross-sectional area. But there are also other cross-sectional areas conceivable. Also, in particular, the holding surfaces designed for the respective tool dimensions may have circular cross-sectional areas. But there are also other cross-sectional areas conceivable here.

The tool case according to the invention allows easy handling of different tools, such as different size and / or shape. A uniform transport and storage concept is provided. The lifetime of the tools is extended by avoiding damage. The tools must less often between different storage or

Be repackaged means of transport, which further facilitates the process. The tools can be carried by one operator in the tool case according to the invention with one hand, resulting in ergonomic advantages and a reduction in health burden. A storage of tools arranged in several tools is possible in a simple manner, for example by stacking the tool box. The tool cases may have stacking aids, such as stacking ribs, for easy stacking of two or more tool cases.

The tool case according to the invention can also accommodate a plurality of tool inserts designed in the manner according to the invention. Also, several tool inserts can be arranged side by side and / or one above the other in the tool case shell. In particular, both tool inserts for dies and tool inserts for press dies can be arranged in the tool case shell. The tool case shell can have indentations of different depths to accommodate the tool inserts for dies and the tool inserts for press dies.

According to a preferred embodiment, the at least one tool insert can be detachably held in the tool case shell, so that tools held in the holding receptacles of the at least one tool insert can be removed from the tool box shell together with the at least one tool insert for cleaning. This results in a simplification of the regularly required cleaning of the tools, since the respective tools can be removed together with the tool insert from the tool box shell and used in a cleaning device for cleaning. Repacking the tools is not required. As a result, the risk of damage and the physical stress on an operator and the cleaning costs are further reduced. Also, such a simple cleaning of the tool insert without tools is possible.

The at least one tool insert can, for example, be held detachably in a holding frame of the tool box shell, in particular of a lower part of the tool box shell. But there are also other releasable holding mechanisms conceivable.

Alternatively it can be provided that the at least one tool insert is fixedly arranged in the tool case shell, in particular is integrally connected to the tool case shell. This results in a particularly simple structure and thus a particularly simple production of the tool case. The tool case can then be designed in such a way that the tool case shell can be cleaned together with the tool insert fixedly arranged in the tool case shell and the tools arranged in the tool insert.

According to a further embodiment, the holding receptacles of the at least one tool insert can be designed such that tools held in the holding receptacles protrude beyond the top of the at least one tool insert by an equal height. The tops of the tools, for example, in the operation with a pressing device, in particular pressure rollers, the rotary tablet press cooperating mirror surfaces of press dies or the tops of dies are in this embodiment, therefore, in a common plane. In particular, the at least two retaining surfaces of the holding receptacles can be designed such that tools of a first height fly on holding surfaces of a first depth and tools of a second, larger height on holding surfaces of a second, larger depth, so that both tools are at a substantially same height over a The top of the at least one tool insert protrude. By the aforementioned embodiment it is ensured that, for example, an inner side of an upper part of the tool case shell in the closed state safely on all Tool tops rests. The tools are thus kept very safe.

The at least one tool insert may have at least one marking that indicates which tools can be held in the at least one tool insert. In particular, the marking may specify for holding which tool types the at least two holding surfaces of the holding receptacles of the tool insert are suitable. Specifically, the tag may indicate whether two or more types of tools can be held in the tool holder holding fixtures. For example, can be provided as a label, a name of the tools to be held. The aforementioned embodiment allows a simple and rapid recognition of whether the tool insert contains a required tool and / or whether the tool insert is suitable for receiving a particular tool. The tool insert may be made of plastic, for example in an injection molding process. In this case, the inscription can be applied or applied by the injection mold during the production of the tool insert.

According to a further embodiment, it may be provided that the tool case shell has a lower part receiving the at least one tool insert and an upper part pivotable relative to the lower part between an open position and a closed position, wherein the upper part in the closed position with an inner side of the at least one Tool held tools rests so that the tools between the at least one tool insert and the inside of the upper part are held firmly. In particular, the at least one tool insert in the tool case according to the invention, for example by a plug connection, be locked. Thus, a secure hold of the at least one tool insert in the tool case can be ensured even if no tools are held in the holding receptacles. The tool case shell can also be Have lock, with which the tool case is lockable. When closed, the tool between the tool insert and the inner surface of the upper part is held positionally secure even with respect to a direction of movement perpendicular to the top of the tool insert. In particular, it is advantageous in this embodiment, when the tools protrude by an equal height above an upper surface of the at least one tool insert. A movement of the tool in the tool box and an associated risk of damage can then be completely prevented. One or more hinges connecting the upper part and the lower part can also participate in the positionally secure holding of the tool.

The upper part and / or the lower part of the tool case shell may be integrally formed, in particular of a plastic material. So it can also be the upper part and the lower part integrally connected to each other, for example by one or more film hinges. However, it is also conceivable that the upper part and the lower part are separate parts, which are connected by one or more separate hinges. Also, the tool insert may be integrally formed, for example of plastic material. All parts of the tool case made of a plastic material can be produced in a particularly simple manner in production engineering in a plastic injection molding process or the like.

According to a further embodiment, the inside of the upper part of the tool case shell may have a relative to the upper part of a softer material, preferably a plastic or foam material, existing insert which rests in the closed position of the upper part on the tool held by the at least one tool insert. This results in a particularly good protection of the tools.

The tool case shell may further comprise at least one viewing window through which at least one held by at least one tool insert Tool is visible from the outside. Thus, in particular, the degree of occupancy of the tool case can be seen. Of course, if no tool is held in the at least one tool box, no tool is visible through the viewing window from the outside. It is also possible to provide labeling fields which, for example, identify a tool type stored in the tool case and / or a manufacturer of the tool and / or a user of the tool, etc. Also, an identifying coloring of at least a part of the tool case is possible on the basis of which it can be seen from the outside that the tool case serves to hold certain tools.

According to a further embodiment, the at least one tool insert may have a first side and a second side opposite the first side, wherein the tool insert is reversible, so that the at least two differently dimensioned tools from the first or from the second side into the holding receptacles of the at least one Tool insert can be used. In particular, the at least two retaining surfaces of the holding receptacles can each be arranged on one of the opposite sides of the tool insert. As a result, the insertion of a tool of a first dimension on a holding surface in the holding receptacle from a first side and the insertion of a tool of a second dimension on the other holding surface in the same holding receptacle is made possible. The ability of the tool insert for selectively receiving a plurality of tools of different dimensions can thus be given in a simple manner (also) by a reversibility of the tool insert.

According to a preferred embodiment, the at least two support surfaces are steppedly offset from one another. The at least two retaining surfaces may be parallel to one another and offset by a step such that one of the retaining surfaces lies deeper in the retaining receptacle than the other retaining surface. If, for example, two retaining surfaces are provided, then a tool of a first dimension can be received by the first retaining surface and, alternatively, one Tool of a second, different measure of the second holding surface are received, wherein the second measurement tool, for example, may have a different diameter than the tool of first dimension. If matrices are provided as tools, then for example a lower retaining surface lying deeper in the retaining receptacle can be formed as a closed surface and at least one retaining surface located above it and stepped like an open surface. In holding receptacles with a circular cross section, the lower holding surface may be formed as a circular surface and the at least one offset overlying holding surface as the lower holding surface annularly enclosing surface. As a result, a recording of a first or a second tool of different sizes in the same holding receptacle while simultaneously secure displacement of the respective tool in the holding receptacle is made possible in a simple manner. But it can also be provided three or more staggered holding surfaces to allow an optional recording of three or more than three tools of different dimensions.

According to a further preferred embodiment, the at least two retaining surfaces may be formed by a plurality of support webs, each extending from an inner wall of the respective holding receptacle in the direction of the center of the respective holding receptacle. In particular, the support webs may extend from an inner wall of the respective holding receptacle so far in the direction of the center of the respective holding receptacle that they touch each other. Thus, the support webs can form continuous webs. Alternatively, the support webs may be formed such that they do not touch with their projecting into the center of the respective support surface free ends. In particular, the holding receivers may preferably have a circular cross-sectional area. Furthermore, the holding receivers may preferably be formed as an opening penetrating the tool insert from the first to the second side. In particular, the at least two holding surfaces can be formed by exactly three support webs or exactly six support webs. tools, which are held in the holding receptacles of at least one tool insert, can be placed on these support webs. This configuration enables a secure holding of the tools and at the same time a particularly thorough and efficient cleaning of the tools held in the tool insert, since only a small part of the tools is covered by the support webs and, for example, a fluid cleaning agent can easily reach the tools from both sides. Also, the support webs may each be stepped. The support webs may each have one or more stages. In particular, the support webs may be offset such that the support surfaces formed by the support webs are arranged at different heights in the holding receptacles. At the same height located stages of the support webs can thus jointly define a respective holding surface.

According to a further preferred embodiment, the support webs on a first side at least two, in particular exactly two, stepwise staggered support planes and have on a second side at least one, for example, exactly one support plane, so that on the at least two stepwise offset support planes on the first Side optionally at least two differently dimensioned tools can be added and on the at least one supporting plane on the second side by turning the tool insert at least one, for example, a precise, tool of a certain size can be added. According to this embodiment, the holding receptacles of the tool insert can each accommodate at least three tools of different dimensions optionally. The advantage of this embodiment is that a single tool insert is suitable for receiving at least three tools of different sizes.

According to a further embodiment, the at least one tool insert is designed to be stackable. In particular, several inventive Tool inserts on each other or be stackable formed. The tool inserts can be stackable, regardless of whether the retaining seats of the stackable tool inserts are designed to receive dies or punches. Tool inserts for dies can be stacked on die inserts for dies or die inserts for dies on die inserts for dies. Tool inserts for dies can also be stackable on tool inserts for stamps or tool inserts for stamps on die inserts for dies. The at least one tool insert may, for example, have elevations and / or depressions which can be brought into engagement with recesses and / or elevations of a further tool insert in order to stack the tool inserts.

According to a further embodiment, the tools held in the holding receptacles of the at least one tool insert can be dies for rotary tablet presses. Matrices are known to be sleeve-shaped inserts, which are inserted into corresponding receiving bores of the die plate and releasably fixed therein, for example by a suitable screwing. The matrices each have at least one bore, into which the material to be pressed is filled during operation. The upper and lower punches then work together in the holes for producing the tablets.

According to another embodiment, the tools held in the holding receptacles of the at least one tool insert may be press punches for rotary tablet presses, in particular upper and lower punches, wherein the press punches each have a punch head and a punch shaft and have a pressing portion facing away from the punch head, end of the punch shaft , The pressing section has the pressing geometry which dips into the bores of the die plate and produces the tablets. Also the press punches can be designed as guided punches, in particular with feather keys.

In accordance with a further embodiment, the at least one tool insert may be held at an upper end of at least one stamp basket and at least one shaft insert may be held below the at least one tool insert in the at least one stamp basket, wherein the at least one shaft insert has a plurality of shaft holding receptacles for holding the stamp shanks in the at least having a tool insert held pressing die, wherein the shaft holding receptacles may be formed for receiving Stempelschäften up to a defined diameter. Press punches for rotary tablet presses usually have an elongated shape and, as explained, have a punch head and a punch shaft. The press punches can be held in a tool insert according to the invention by its punch head. The stamp head can be held in one of the at least two holding surfaces of one of the holding receptacles. The adjoining the stamp head stamp shaft can then protrude through the at least one tool insert into the at least one stamp basket, in which the at least one tool insert can be held. In order to prevent that held in adjacent holding receptacles of at least one tool insert press dies against each other during transport, the stamp shafts may protrude at least in part in each case holding a shaft holding at least one shaft insert. This at least one shaft insert can be located deeper in the at least one punch basket below the at least one tool insert and the shaft holding receptacles can be located substantially centrally below the respective holding receptacles of the at least one tool insert. The shaft holding receptacles can be designed for receiving punch shafts up to a defined diameter.

According to a further embodiment, the at least one tool insert can be releasably held in the at least one punch basket. Alternatively or additionally, the at least one shaft insert can be detachably held in the at least one punch basket. Removable tool inserts have the advantage that they can be turned or replaced to allow the inclusion of press stamps with punch heads of other dimensions, for example, larger diameter, in the punch basket. Preferably, both the at least one tool insert and the at least one shaft insert are detachably held in the at least one punch basket. This makes it possible to hold several, in particular all, different punch sizes and punch shapes in only one embodiment of the punch basket.

According to a further embodiment, the at least one punch basket can be detachably held in the tool case shell, so that taken in the holding receptacles of at least one tool insert press rests for cleaning together with the at least one punch basket and the at least one tool insert and the at least one shaft insert from the tool box shell can be. A removal of the punch basket together with the inserts and the press punches located therein from the tool box is particularly advantageous since the punches are always held securely and do not need to be removed from the punch basket for cleaning. This reduces the risk of damage. The at least one stamp basket can have as large a mesh as possible in one, in particular in all, side walls, in order to allow adequate wetting of the pressing dies with cleaning agent.

Fig. 1

eine perspektivische Ansicht des erfindungsgemäßen Werkzeugkoffers in einer ersten Ausführung mit einem Werkzeugeinsatz für Matrizen,

Fig. 2

eine perspektivische Ansicht zweier Seiten eines wendbaren Werkzeugeinsatzes für Matrizen,

Fig. 3

einen Schnitt durch den erfindungsgemäßen Werkzeugkoffer aus Figur 1 mit geschlossenem Oberteil mit zwei Werkzeugeinsätzen für Matrizen,

Fig. 4

eine perspektivische Ansicht eines erfindungsgemäßen Werkzeugkoffers in einer zweiten Ausführung mit einem Werkzeugeinsatz für Pressstempel,

Fig. 5

eine perspektivische Ansicht zweier Seiten eines erfindungsgemäßen wendbaren Werkzeugeinsatzes für Pressstempel, gehalten in jeweils einem Stempelkorb,

Fig. 6

einen Schnitt durch zwei Ansichten zweier erfindungsgemäßer Werkzeugeinsätze für Pressstempel mit darin gehaltenen Pressstempeln,

Fig. 7

einen Schnitt durch den erfindungsgemäßen Werkzeugkoffer aus Fig. 4 mit drei Werkzeugeinsätzen für Pressstempel, gehalten in jeweils einem Stempelkorb.

Embodiments of the invention will be explained in more detail with reference to figures. They show schematically:

Fig. 1

a perspective view of the tool case according to the invention in a first embodiment with a tool insert for dies,

Fig. 2

a perspective view of two sides of a reversible tool insert for dies,

Fig. 3

a section through the tool case according to the invention FIG. 1 with closed top with two die inserts for dies,

Fig. 4

a perspective view of a tool case according to the invention in a second embodiment with a tool insert for press dies,

Fig. 5

a perspective view of two sides of a reversible tool insert according to the invention for press dies, held in a respective stamping basket,

Fig. 6

a section through two views of two inventive tool inserts for press stamps held therein press dies,

Fig. 7

a section through the tool case according to the invention Fig. 4 with three tool inserts for press dies, each held in a punch basket.

Unless otherwise indicated, like reference characters designate like items throughout the figures. FIG. 1 shows a tool case according to the invention for the storage, transport and cleaning of two tool inserts for matrices of a rotary tablet press. The tool case has a lower part 10 of a tool case shell, which in the present example is made in one piece from a plastic material, produced for example in a plastic injection molding process. The lower part 10 is hingedly connected via three hinges 12 with an upper part 14 of the tool case shell, so that the upper part 14 is adjustable between an open position and a closed position. The upper part 14 can also be made in one piece from a plastic material, produced for example in a plastic injection molding process. The lower part 10 includes a handle portion 16 and the upper part 14 includes a handle portion 18. In the closed state, the handle portions 16, 18 form a handle for carrying the tool case. In addition, the tool case shell comprises two locks 20 by which the tool case can be closed in the closed position.

In the lower part 10 of the tool case shell, a tool insert 26 for dies is detachably held and locked in the insert holders 25 provided therefor. The tool insert 26 can be inserted into the insert holders 25 and held against displacement and / or jamming. The toolbox off Fig. 1 has two insert holders 25, so can accommodate up to two tool inserts 26, in which representation only one tool bit 26 is added.

The inventive tool insert 26 for matrices Fig. 1 is in Fig. 2 to be recognized in detail. It is in the tool insert 26 in Fig. 2 two views of the same tool bit 26. The tool bit 26 is reversible, so that the right view shows a first side and the left view shows a second side of the tool bit 26. A located on both sides of the tool insert inscription 27 indicates the name of the matrices that can be used in the tool bit 26. Furthermore, the tool insert 26 on two opposite sides on handles 36, of which only one is visible. The handles 36 facilitate insertion of the tool bit 26 in the tool case shell and a removal of the Tool insert 26 from the tool box shell and the transport of the tool insert 26.

A plurality of retaining seats 28 having a circular cross-sectional area can be seen. The holding receivers 28 form holes in the tool insert 26, thus projecting through the tool insert 26. Retaining surfaces are formed by support planes 34, 34 ', 34 "of support webs 32 in each of the retainer seats 28. In this embodiment, each retainer receptacle 28 has three support webs 32 directed from the inner wall of the hole-like retainer receptacles 28 respectively into the center of the retainer seats 28 The support webs 32 project into the inner retaining wall 28 approximately half the radius of the circular retaining seats 28 and are arranged at equal angular intervals of approximately 120 ° to the inner wall of the retaining seats 28. The support webs 32 are on a first side (right view in FIG Fig. 2 ) two support planes 34, 34 'on and on a second side (left view in Fig. 2 Overall, therefore, the tool insert 26 has three retaining surfaces formed by the three support planes 34, 34 ', 34 "for receiving dies. The support levels 34, 34 'of the first side of the support webs 32 are staggered such that a support plane 34' is lower in the respective holding receptacle 28, as the other support plane 34. The support levels 34, 34 ', 34 "lie in mutually parallel planes On each of the support planes 34, 34 ', 34 ", a die of a different size can be accommodated. The upper of the staggered support planes 34 of the first side of the support webs 32 is formed for receiving the matrices 38. In this case, the matrices 38 lie on the corresponding support plane 34 so that they are held laterally substantially non-displaceable, since the matrices 38 and the associated support levels 34 have a comparable diameter. On the other hand, due to a defined depth of the support planes 34, the matrices 38 protrude beyond the top side of the tool insert 26 by a defined height. The matrices 38 'are held in the retaining seats 28 by the support planes 34' formed for these matrices 38 '. The support levels 34 'are step-like The matrices 38 'have a smaller diameter than the matrices 38, so that the matrices 38' are also held in a secure manner in the associated supporting planes 34 'of a likewise smaller diameter. On the second side of the support webs 32, as in the left view of the tool bit 26 in Fig. 2 The support planes 34 "are adapted to receive third dimension arrays 38", and the arrays 38 "have a diameter greater than the diameter of the arrays 38 and 38 '. , The matrices 38 "are accordingly held in a shift-proof manner in the holding receptacles 28. Furthermore, in FIG. 2 Still shown are matrices 38 "'of a fourth size which are also received on the support planes 34' Since the matrices 38"'have a smaller diameter than the matrices 38', the matrices 38 "'on the support planes 34' are substantially shift resistant held with more tolerance.

The tool insert 26 can be inserted into the insert holders 25 of the tool case shell of a tool case according to the invention and removed for cleaning together with the dies held therein. A cleaning can be done for example in a dedicated dishwasher. Due to the described shape of the support webs only a very small area of the matrices is covered, so that the matrices can be washed around particularly well with detergent. The hole-like shape of the holding receptacles also contributes to a good cleaning of the matrices. It is particularly advantageous that the matrices for cleaning do not have to be removed from the holding receptacles, but can be cleaned together with the tool insert.

Two of the tool inserts 26 according to the invention can be found in the insert holders 25 of the tool case shell of the tool case according to the invention Fig. 1 be recorded. In the closed position keeps the inside of the upper part 14 of the tool case shell held in the mold inserts dies substantially fixed in position. For this purpose, the inside of the upper part 14 may comprise an insert 39 made of plastic or foam material, which rests in the closed position of the upper part 14 on the dies. FIG. 3 shows such a tool case according to the invention in the closed state in a sectional view. Evident are two tool inserts 26 each with two different held in the respective holding receptacles 28 matrices 38, 38. "The matrices 38 lie on the support surfaces 34 of the first side of the support webs 32, the matrices 38" lie on the support surfaces 34 "of the support webs 32 on the second side of a structurally identical, but inverted tool insert 26. A plastic or foam insert 39 arranged on the inside of the upper part 14 of the tool case shell holds the matrices 38, 38 "firmly fixed in the holding receptacles 28. Because of the small difference in the height of the Carrying levels 34, 34 ', 34 "of the support webs 32 protrude the matrices 38 somewhat further into the foam insert than the matrices 38".

FIG. 4 shows the tool case according to the invention in a second embodiment, which differs from the in Fig. 1 in that this tool case is designed for the reception of three tool inserts 126, 126 ', 126 "for press punches In addition, this tool case has a viewing window 24 in the upper part 14 of the tool case shell, through which it can be seen even when the tool case is closed The tool inserts 126, 126 ', 126 "are held in punch baskets 144, which are held in the tool case FIG. 5 can be seen in detail. In the stamp baskets 144 tool inserts 126, 126 ', 126 "of different designs for press ram 138 different sizes can be used Fig. 4 are three stamp baskets 144, each with different tool inserts 126, 126 ', 126 "used for very different stamp sizes in the tool case shell of a tool case according to the invention.

In the Fig. 5 shown punch baskets 144 are in the insert brackets 25 of the tool box shell Fig. 4 can be used and locked and removed from these. The embodiment of the tool insert 126 shown here corresponds to the embodiment in FIG Fig. 4 rightmost. The tool insert 126 for press punches according to the invention, like the tool insert 26 for dies, is suitable for receiving a plurality of differently dimensioned tools. The left and the right view in Fig. 5 show respectively a first and a second side of the reversible tool bit 126. A plurality of retaining seats 128 having a circular cross-sectional area can be seen. The holding receivers 128 form holes in the tool insert 126, thus projecting from a first to a second side of the tool insert 126 through the tool insert 126. In the holding receptacles 128, holding surfaces are formed by support planes 134, 134 'of support webs 132. Each holding receptacle 128 has in this embodiment six support webs 132 which are directed from the inner wall of the hole-like holding receptacles 128 respectively in the center of the holding receptacles 128. The support webs 132 are arranged at regular angular intervals of approximately 60 ° on the inner wall of the holding receivers 128. Of course, fewer or more than six, in particular at least three, support webs 132 may be provided, wherein the respective angular distances between the support webs 132 may then result from a substantially uniform distribution of the support webs 132 in the holding receptacle 128. The support webs 132 have on a first side, left view in Fig. 5 , a support plane 134 on and on a second side, right view in Fig. 5 , a second support plane 134 '. Overall, the tool insert 126 thus has two support surfaces formed by the two support levels 134, 134 'for receiving press dies 138, 138' of different sizes. There are each the punch heads 140, 140 'of the ram stamps 138, 138' on the support webs 132 of the holding receptacles 128, while the punch shafts 142, 142 'protrude through the holding receptacles 128 into the punch basket 144.

The support planes 134 are not centered, but arranged at one end of the holding receptacles 128. In the left view in Fig. 5 Accordingly, the end of the holding receivers 128 in the right-hand view is located at an upper side of the turned tool bit 126. Consequently, the carrying planes 134 in the left-hand view are designed to receive punching dies 138 with a higher punch head 140 , as the supporting planes 134 ', which are formed for receiving press dies 138' with a lower punch head 140 '. In general, both support planes 134, 134 'are formed in such a way that the punch heads of the press dies 138, 138' project beyond the surface of the respective tool insert 126 by an equal height, as in FIG Fig. 6 and Fig. 7 to recognize. As with the tool inserts for the matrices, the reason for this is that the press punches are due to the in Fig. 4 Shown upper part 14 of the tool case shell, in particular by a arranged on the inside of the upper part 14 plastic or foam insert 39, fixed in position in the holding receptacles 128 are held. Furthermore, the plunger 138, 138 'on the corresponding support levels 134, 134' are held substantially secure against displacement.

In addition to the tool bit 126, the punch basket 144 may receive different shaft inserts 146 for holding the punch shanks 142 of the dies 138, 138 ', as in FIG Fig. 5 and in particular in Fig. 7 to recognize. The shaft inserts 146 are each suitable for receiving Stempelschäften 142 to a certain diameter and give the press dies 138 additional support during transport. In particular, the shaft inserts prevent abutment of the punch shanks 142 of adjacent pressing dies 138. These shank inserts 146 can also be removed from the punch basket 144 in order, for example, to be exchanged for shaft inserts of a different size.

An advantage of the removability of the tool inserts 126 and the shaft inserts 146 from the punch basket 144 is the possibility of using only one single embodiment of the punch basket 144. The punch basket 144 can be removed for cleaning together with the therein held tool insert 126, the shaft insert 146 and held therein press dies 138 from the tool box. A cleaning can be done for example in a dedicated dishwasher. Due to the described shape of the support webs 132 only a very small area of the punch heads 140, 140 'hidden, so that the punch heads 140, 140' as well as the entire ram 138, 138 'can be particularly well washed with detergent. In addition, due to the described shape of the support webs 132, the die tips 188 inserted into the punch basket 144 and shank insert 146 are protected by a higher layer. It is particularly advantageous that the pressing plungers 138, 138 'do not have to be removed from the holding receptacles 128 for cleaning, but can be cleaned together with the tool insert 126 and the shaft insert 146. In order to further improve the cleaning result, the punch basket 144 has the largest possible mesh or openings without losing stability.

In Fig. 6 different embodiments of press dies 138 can be seen, which differ in particular in the height of their punch heads 140 and the execution of their punch shafts 142. The four different illustrated embodiments of press dies 138 are held in two different sides of two different tool inserts 126, 126 '. It can be clearly seen that all of the press dies 138, in particular the punch heads 140, project beyond the tool inserts 126, 126 'by the same height. The mirror surfaces of the punch heads are therefore in a common plane. This is also in Fig. 7 to recognize. In this way, a particularly secure hold of the ram in the tool case is made possible because the upper part 14 of the tool case shell holds the ram 138 substantially fixed in position.

Claims (15)

Tool case for storing and transporting tools (38, 138) for a rotary tablet press, characterized by - A portable tool case shell, in which at least one tool insert (26, 126) is arranged, wherein - The at least one tool insert (26, 126) a plurality of holding receptacles (28, 128) for holding tools (38, 138), wherein - The holding receptacles (28, 128) are formed so that in adjacent holding receptacles (28, 128) held tools (38, 138) are spaced apart from each other so that they do not touch, and - The holding receptacles (28, 128) each have at least two for receiving different sized tools (38, 138) formed holding surfaces. Tool case according to claim 1, characterized in that the at least one tool insert (26, 126) is detachably held in the tool case shell so that tools (38, 138) held in the holding receivers (28, 128) of the at least one tool insert (26, 126) ) for cleaning together with the at least one tool insert (26, 126) can be removed from the tool box shell. Tool case according to one of the preceding claims, characterized in that the holding receptacles (28, 128) of the at least one tool insert (26, 126) are formed such that in the holding receptacles (28, 128) held tools (38, 138) by a same Height beyond an upper surface of the at least one tool insert (26, 126) protrude. Tool case according to one of the preceding claims, characterized in that the tool case shell has a lower part (10) receiving the at least one tool insert (26, 126) and a top part (14) pivotable relative to the lower part (10) between an open position and a closed position in that the upper part (14) rests in the closed position with an inside on tools (38, 138) held by the at least one tool insert (26, 126), so that the tools (38, 138) between the at least one tool insert (26 , 126) and the inside of the upper part (14) are held firmly. Tool case according to claim 4, characterized in that the inside of the upper part (14) of the tool case shell has an opposite the upper part (14) of a softer material, preferably a plastic or foam material, existing insert which in the closed position of the upper part (14 ) rests on the tools (38, 138) held by the at least one tool insert (26, 126). Tool case according to one of the preceding claims, characterized in that the at least one tool insert (26, 126) has a first side and a second side opposite the first side, wherein the tool insert (26, 126) is reversible, so that the at least two different dimensioned tools (38, 138) can be inserted from the first or from the second side into the holding receptacles (28, 128) of the at least one tool insert (26, 126). Tool case according to one of the preceding claims, characterized in that the at least two retaining surfaces are formed offset stepwise to each other. Tool case according to one of the preceding claims, characterized in that the at least two holding surfaces are formed by a plurality of support webs (32, 132), each starting from an inner wall of the respective holding receptacle (28, 128) in the direction of the center of the respective holding receptacle ( 28, 128). Tool case according to claim 8, characterized in that the support webs (32, 132) do not touch. Tool case according to claims 6 to 8, characterized in that the support webs (32) on a first side at least two stepped staggered support planes (34, 34 ') and on a second side at least one support plane (34 "), so that on the at least two staggered support planes (34, 34 ') on the first side of the support webs (32) optionally at least two differently dimensioned tools (38, 38') can be added and on the at least one support plane (34 ") on the second side the support webs (32) at least one tool (38 ") of a certain size can be accommodated. Tool case according to one of the preceding claims, characterized in that the tools held in the holding receptacles (28) of the at least one tool insert (26) are dies (38) for rotary tablet presses. Tool case according to one of Claims 1 to 10, characterized in that the tools held in the holding receptacles (128) of the at least one tool insert (126) are press punches (138) for rotary tablet presses, the press punches (138) having a punch head (140) and a Stamping shaft (142). Tool case according to claim 12, characterized in that the at least one tool insert (126) is held at an upper end of at least one punch basket (144) and at least one shaft insert (146) below the at least one tool insert (126) in the at least one punch basket (144 ), the at least one shaft insert (146) having a plurality of shaft retaining seats (128) for holding the punch shafts (142) of the ram (138) held in the at least one tool bit (126), the shaft retaining seats (128) for receiving Stamp shanks (142) are formed up to a defined diameter. Tool case according to claim 13, characterized in that the at least one tool insert (126) is releasably held in the at least one punch basket (144) and / or that the at least one shaft insert (146) is releasably held in the at least one punch basket (144). Tool case according to claim 13 or 14, characterized in that the at least one punch basket (144) is releasably held in the tool case shell, so that in the holding receptacles (128) of the at least one tool insert (126) held ram (138) for cleaning together with the at least one punch basket (144) and the at least one tool insert (126) and the at least one Shaft insert (146) can be removed from the tool box shell.

Images