EP4253026A1 - Dispositif de fabrication de pièces pressées sans bord - Google Patents

Dispositif de fabrication de pièces pressées sans bord Download PDF

Info

Publication number
EP4253026A1
EP4253026A1 EP22165078.1A EP22165078A EP4253026A1 EP 4253026 A1 EP4253026 A1 EP 4253026A1 EP 22165078 A EP22165078 A EP 22165078A EP 4253026 A1 EP4253026 A1 EP 4253026A1
Authority
EP
European Patent Office
Prior art keywords
upper punch
compact
die
punch
tool system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP22165078.1A
Other languages
German (de)
English (en)
Inventor
Sebastian Noack
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Korsch AG
Original Assignee
Korsch AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Korsch AG filed Critical Korsch AG
Priority to EP22165078.1A priority Critical patent/EP4253026A1/fr
Priority to EP23164661.3A priority patent/EP4253027A1/fr
Publication of EP4253026A1 publication Critical patent/EP4253026A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/022—Moulds for compacting material in powder, granular of pasta form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/022—Moulds for compacting material in powder, granular of pasta form
    • B30B15/024—Moulds for compacting material in powder, granular of pasta form using elastic mould parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/065—Press rams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/08—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with moulds carried by a turntable

Definitions

  • the invention in a first aspect, relates to a tool system for producing a compact during a pressing process of a pressing machine, comprising an upper punch and a lower punch.
  • the upper punch comprises an upper punch molding element and the lower punch includes a lower punch molding element, which in their interaction create a geometric shape of the compact.
  • the upper punch has an upper punch edge element, whereby the upper punch has a larger diameter compared to the diameters of the upper punch forming element and the lower punch forming element, so that the upper punch can be placed on a die disk or a die during the pressing of the pressing material.
  • the invention deals with a press machine comprising the tool system according to the invention.
  • the invention relates to a pressing method for producing a compact during a pressing process using the tool system according to the invention.
  • Compacts include pressed material, the material often being in the form of powder or granules and the compact being provided by mechanical pressure.
  • a compact can be a tablet that is typically produced using tablet presses.
  • tablet presses There are essentially two types of tablet presses, namely the eccentric press and the rotary tablet press (also referred to as a rotary press).
  • Rotary presses are often used for large industrial applications.
  • rotary presses have a rotor which carries a plurality of pairs of punches, each pair of punches being formed by an upper punch and a lower punch, which are adjustable relative to one another.
  • the rotor comprises a die disk in which die openings are provided at regular intervals at least along a partial circle, in which the upper and lower dies either interact directly or have insert pieces, which are referred to as dies.
  • the material to be pressed is filled into these dies or die openings using a filling device.
  • both stamps When a pair of stamps reaches the area of the filled die or die opening due to the rotation of the rotor, the two stamps are moved towards each other by control cams and reach the area of a pressure roller station. In the pressure roller station, the punches are pressed against each other so that the material in the die opening or the die is compacted into a compact. After the pressing process is complete, both Press ram moves up or down and the tablet is ejected from the die opening or the die.
  • a web refers to a lateral surface of the compact and is often created by the contact of the material to be pressed with a wall of the die disk within the die opening or the die within a die bore.
  • a bridge is often described by the bridge height.
  • the web height is also the total height.
  • the web height is the height of the cylinder and the total height is the sum of the height of the cylinder (bar) with the heights of the two spherical caps.
  • the web of a tablet or a compact is also referred to as the “edge” in the prior art. Therefore, the terms “edge” and “bar” can be used synonymously throughout this document.
  • the bridge of a compact comes with some disadvantages that are not negligible.
  • the web has a disadvantageous effect on the stability of the compact, since there is a low breaking strength at an edge of the web or at a transition area between the web and, for example, a spherical cap. This means that the compact can easily be broken under a certain pressure.
  • the bridge of a compact also has a detrimental effect when consumed, for example when taking medication. Consumers often find the bar uncomfortable when swallowing because the bar can touch large areas of the oral cavity.
  • the bridge can also give a visual impression of reduced quality because the bridge can change color easily and/or quickly. This means that the bar can have a different color than the actual color of the compact.
  • the object of the invention was to provide a tool system that eliminates the disadvantages of the prior art.
  • the tool system should be able to reduce the size of the web of a compact or to be able to produce compacts without a web.
  • the tool system should be particularly easy to implement in prior art pressing machines, so that integration into known systems and efficient mass production of compacts with more suitable webs is possible.
  • the invention in a first aspect, relates to a tool system for producing a compact during a pressing process of a pressing machine, comprising an upper punch and a lower punch, characterized in that the upper punch comprises an upper punch molding element and the lower punch comprises a lower punch molding element, which in their interaction form a geometric shape of the compact and the upper punch comprises an upper punch edge element and the upper punch has a larger diameter compared to the diameters of the upper punch mold element and the lower punch mold element.
  • the preferred tool system has proven to be advantageous in many ways.
  • the tool system according to the invention allows the production of compacts that have no web or a reduced web.
  • the web height can advantageously be lower than approximately 0.3 mm, preferably lower than approximately 0.2 mm, particularly preferably lower than approximately 0.1 mm, very particularly preferably approximately 0 mm be reduced.
  • Terms such as essentially, approximately etc. preferably describe a tolerance range of less than ⁇ 40%, preferably less than ⁇ 20%, particularly preferably less than ⁇ 10%, even more preferably less than ⁇ 5% and in particular less than ⁇ 1% and in particular include the exact value. Partially describes preferably at least 5%, particularly preferably at least 10%, and in particular at least 20%, in some cases at least 40%.
  • substantially rimless compacts can advantageously be provided using the preferred tool system, which has proven to be a particularly useful property of compacts.
  • the compact advantageously has reduced or no edges due to the reduction or absence of the web, which preferably form a transition region between the web and an upper and/or lower region of the compact.
  • the pellets are therefore more pleasant to consume. This results in a significant improvement compared to the prior art, in which edges in particular were described and perceived as unpleasant when swallowing the compact.
  • the unpleasant sensation is due in particular to the fact that the edges of the compacts of the prior art can touch internal areas of the oral cavity, throat and esophagus. This is advantageously avoided using the preferred tool system, since the edge can be reduced or the compact can be made rimless.
  • a particularly aesthetic appearance of the compact is advantageously created by means of the preferred tool system.
  • a substantially rimless compact is advantageously characterized by a substantially smooth surface of the compact, so that a particularly uniform geometric shape can be created.
  • the preferred tool system is advantageously able to reproducibly produce essentially rimless compacts. Due to the reproducibility of the edgelessness, masses of compacts can be produced that are exactly similar in terms of their geometric design, in particular with regard to the reduction or elimination of the web.
  • the compact has a long-lasting, uniform color.
  • the quality of the compact also increases, since undesirable discoloration can be avoided over a long period of time due to the geometric design.
  • the preferred tool system can be provided particularly easily and can also be easily implemented in known pressing machines.
  • the preferred tool system is therefore also advantageously suitable for mass production of compacts.
  • a particularly high quantity of essentially rimless compacts can advantageously be produced in a process-efficient manner as part of a pressing process.
  • the reduction in dimensions or the absence of the web is preferably made possible by the preferred tool system, in particular by the combination of the features or components of the preferred tool system.
  • the preferred tool system achieves essentially rimless compacts through the interaction of the upper punch mold element and the lower punch mold element.
  • the phrase “interaction of the upper punch mold element and the lower punch mold element” preferably means that the geometric shape of the compact can essentially be designed by the upper punch mold element and the lower punch mold element or is predetermined by them.
  • a shape of the material to be pressed is formed through the interaction of the upper punch mold element and the lower punch mold element, which preferably also determines the shape of the compact.
  • the upper punch mold element and the lower punch mold element preferably work together in such a way that they together form a geometric body in the form of a cavity.
  • Upper punch edge element includes the upper punch form element.
  • the upper punch shaped element can then be present as a notch in the upper punch edge element.
  • the preferred tool system achieves the shape of the compact through the interaction of the upper punch mold element and the lower punch mold element.
  • the larger diameter of the upper punch compared to the diameters of the upper punch mold element and the lower punch mold element is to be seen as a significant departure from the prior art. Due to the enlarged diameter, the upper punch can preferably be placed on one edge of the die disk.
  • the shape of the compact is not or not exclusively determined in the die opening of the die disk or in the die bore of the die. Instead, the geometric shape of the compact is preferably determined by the interaction of the upper punch mold element and the lower punch mold element. In preferred embodiments, the die opening can be partially involved in the shaping of the compact.
  • the upper punch edge element can be placed on the die disk at the edge of the die opening, which is made possible by the larger diameter of the upper punch.
  • the upper punch mold element is preferably located above the die opening.
  • An axially directed movement in the direction of the die opening can be carried out by the lower punch, so that the lower punch molding element is at least partially located within the die opening when pressing pressed material and shaping the compact.
  • the upper punch edge element can be placed on the edge of the die bore of a die, so that the upper punch shaped element is located above the die bore.
  • the preferred placement of the upper punch on a die is preferably made possible by the upper punch edge element and the enlarged diameter of the upper punch.
  • an axially directed movement in the direction of the die bore can be carried out by the lower punch, with the shape formation of the compact resulting from the interaction of the upper punch mold element and the lower punch mold element.
  • the die bore of the die can be partially involved in the shaping of the compact.
  • the contours of the mold elements touch each other. It can also be preferred that the die opening of the die disk or die bore of the die is partially involved in the shaping of the compact, the essential shaping being preferably achieved by the upper punch shaping element and the lower punch shaping element.
  • a tool system preferably refers to a system comprising a plurality of tools, the tools preferably being provided by the upper punch and the lower punch, in particular by the upper punch mold element, the lower punch mold element and the upper punch edge element.
  • the tool system according to the invention is preferably used to produce compacts and/or can be installed in pressing machines for this purpose.
  • a compact preferably refers to a pressed and shaped piece of the pressed material.
  • the compact can preferably be produced by the pressure that the upper punch and/or the lower punch exert on the pressed material. To maintain the strength of the compact, van der Waals forces can act and plastic deformation of powder particles and/or binders can be used.
  • the compact preferably receives its geometric shape through the interaction of the upper punch mold element and the lower punch mold element.
  • a compact can in particular be a tablet.
  • the upper punch mold element preferably designates a notch which forms part of the upper punch.
  • the upper punch mold element is preferably a notch within the upper punch edge element.
  • the upper punch preferably comprises the upper punch edge element and the upper punch shaped element.
  • the upper punch edge element preferably forms a region or a component of the upper punch, which can be guided to the die disk or die.
  • the upper punch edge element is preferably guided to the die disk or die as part of a pressing process in such a way that the upper die mold element lies above the die opening or die bore. In the context of the invention, this is expressed by the formulation "the upper punch has a larger diameter compared to the diameters of the upper punch mold element and the lower punch mold element".
  • the upper punch edge element has such dimensions that the larger diameter of the upper punch is obtained compared to the diameters of the upper punch mold element and the lower punch mold element.
  • the upper punch in particular the upper punch edge element, can be made planar on an edge of the die opening of a die disk or a die bore of a die.
  • An upper region of the compact is preferably closed off by the upper punch molding element, in particular for the shape formation of the compact.
  • the geometric shape of the compact is preferably achieved through the interaction of the upper punch mold element and the lower punch mold element.
  • the lower punch mold element preferably designates a notch which forms part of the lower punch.
  • the lower punch molding element preferably closes off a lower region of the pressed material to form the compact.
  • a base of the pressed material is formed by the lower punch, in particular the lower punch molding element.
  • the pressed material is filled, metered and/or pre-compressed into the lower punch molding element by a filling device.
  • the upper punch molding element and the lower punch molding element have a mutually congruent cross section, so that a uniform course of the surface of the compact is obtained after a pressing process.
  • an axially directed movement can be exerted by the upper punch and the lower punch, which is preferably made possible by pressure rollers in order to compress the pressed material and thus produce the compact.
  • the upper punch and the lower punch preferably refer to tools which are guided together during the rotation of the die disk and carry out a vertical movement directed towards one another in order to press the pressed material.
  • the upper punch and the lower punch are moved towards each other by one or more components, such as pressure rollers, in order to compress the pressed material into a compact.
  • the upper punch acts from above and the lower punch from below in order to exert pressure on the pressed material evenly, preferably from the top and bottom.
  • the preferred tool system is preferably to be installed in pressing machines in order to produce compacts as part of a pressing process.
  • a pressing machine preferably refers to a machine or a system for pressing the pressing material for the production of the compact using a relative movement of the upper punch and the lower punch.
  • the pressing machine can be, for example, a tablet press, in particular a rotary press.
  • a pressing process preferably refers to all steps that can be carried out by components of the pressing machine in order to compress the pressed material for the production of the compact.
  • the tool system is characterized in that for the design of the geometric shape of the compact, the upper punch edge element can be placed on an edge of a die disk, with a pressing material being located within the lower punch mold element and in a die and for the pressing process the lower punch to the upper punch is movable in an axial direction.
  • the pressing material is stamped into a compact by the pressure of the lower punch. It is preferred that the pressed material is brought into the lower punch molding element (for example by a filling device) and the lower punch is axially movable in the direction of the die bore. It is also preferred to fill the press material into the die bore of the die, with the lower punch molding element preferably forming a base for the press material, with the die preferably being inserted into the die opening of the die disk.
  • the lower punch for pressing the pressed material can be inserted into the die bore of the die, the upper punch comprising the upper punch edge element being placed above the die bore on the die disk, preferably on the die.
  • the press material is filled in such a way that it is located within the die or the die bore and the lower punch mold element.
  • pressure can preferably be exerted by the lower punch in order to press the pressed material into the compact.
  • the design of the shape of the compact is preferably achieved through the interaction of the upper punch mold element and the lower punch mold element. This is in In the context of the invention, it can be seen as a significant departure from the prior art, in which it was often common that the die was essentially responsible for the shape of the compact, in particular for the contour. However, as already described above, there is an edge on the compact when the die is used as such for shaping. According to the invention, it was recognized that this disadvantage can be eliminated by designing the geometric shape of the compact, preferably by allowing the upper punch to be placed on an edge of the die disk above the die opening or the die bore of the die. Preferably, the upper punch edge element can be applied over the edge of the die bore of the die and accordingly on the die during pressing.
  • the upper punch edge element can be placed on the die disk advantageously makes it possible for the upper punch mold element and the lower punch mold element to form the desired shape of the compact with a substantially precise fit, so that compacts with no or only a small web can advantageously be produced.
  • the upper punch can in a certain way, especially in the light of the prior art, be viewed as part of the die, because the shaping was essentially done in the prior art determined by the matrix.
  • the upper punch therefore preferably takes on a partial function of the matrices from the prior art.
  • the die preferably refers to an insert piece which can be inserted into the die opening.
  • the die is sleeve-shaped and fits precisely into the die opening.
  • the die bore refers to an opening that is made in the die itself. The preferred dies allow a particularly precise adjustment of the die openings to the upper and lower punches (in particular to the lower punch), with the adjustment preferably taking place through the die bore of the die.
  • Die openings preferably designate recesses in the die disk, into which a die can be inserted.
  • the die disk is preferably a plate and forms a part of the rotor, which has die openings at least along a pitch circle.
  • each die opening is assigned a pair of punches comprising an upper punch and a lower punch.
  • the die disk preferably carries out a rotation and the upper punch and the lower punch each carry out a downward and upward movement in order to compress the pressed material into a compact.
  • the die disk is present as a whole as part of the rotor. In further preferred embodiments, the die disk is segmented, with several die openings preferably being located in each segment of the die disk.
  • the pressed material is a powdered or granular material, such as coffee powder or flowerpot granules.
  • the pressing material is coffee powder.
  • coffee powder As the preferred pressing material, coffee pressings without or with a reduced web can advantageously be provided using a preferred tool system.
  • pressing coffee powder to obtain a coffee compact was not possible or only possible with disadvantages.
  • known tool systems from the prior art it was not possible to provide a stable and visually appealing coffee compact that could, for example, be further used and/or processed in coffee machines.
  • coffee powder can advantageously be used as pressing material and a coffee compact with the desired shape can be produced.
  • a spherical shape can advantageously be provided by the interaction of the upper punch mold element and the lower punch mold element, with the coffee powder being pressed as the preferred pressing material within a hollow mold of the spherical shape.
  • coffee presses can advantageously be produced using a preferred tool system, which have a particularly smooth surface, i.e. H. in particular are designed without a web and/or edges.
  • the compact is a coffee compact (i.e. a compact comprising coffee powder) which is designed in the form of a ball.
  • a usable coffee compact can advantageously be provided, which can be introduced into coffee machines due to the non-existent or reduced web and thus the essentially smooth surface.
  • the essentially smooth surface of the coffee compact that can be produced is characterized in particular by a uniform course, which ensures sufficient stability for use. Furthermore, it is preferred that the smooth surface of the coffee compact that can be produced can be characterized by a significant reduction in graininess. In particular, there are no irregular spacings between the particles of the coffee press that can be produced, which could have a detrimental effect on the shape, color gradient and/or the stability of the coffee press. A particularly aesthetic appearance of the coffee compact can also advantageously be achieved by also advantageously avoiding or reducing discoloration. A preferred tool system could therefore be used to produce a coffee compact with a substantially smooth surface, in particular with a spherical configuration.
  • the tool system is characterized in that the upper punch has an upper punch insert, the upper punch insert comprising the upper punch forming element and the upper punch edge element.
  • the size and/or shape of the compact can be varied, in particular optimized, by replacing the upper punch insert.
  • the size and/or shape of the upper punch mold element can be adjusted, resulting in a wide range of design options.
  • the diameter, height and/or shape of the compact can be optimized by appropriately selecting the upper punch mold element via an associated upper punch insert.
  • an upper punch insert is also advantageous in that the upper punch has a multi-component structure.
  • the majority of components of the Upper punch can be provided, for example, by a punch shaft and the upper punch insert comprising the upper punch edge element and the upper punch mold element.
  • the upper punch insert can be connected to the upper punch shaft, for example, by a detachable connection.
  • a multi-component use is advantageous in that it allows structural components to be replaced easily and quickly for maintenance, cleaning and/or process optimization. Consequently, the installation of an upper punch insert results in increased process efficiency.
  • an upper punch insert preferably refers to a component that forms part of the upper punch and has the upper punch edge element and the upper punch molding element.
  • the upper punch insert can be made by a releasable connection, such as. B. a screw or bolt connection can be attached.
  • the tool system is characterized in that an additional pressing force can be exerted on the pressing material by the upper punch, preferably after the interaction of the upper punch mold element and the lower punch mold element.
  • the additional pressing force results in a higher level of pressure being exerted on the pressed material.
  • the pressure for pressing the pressed material does not have to come exclusively from the lower punch, but can also preferably be combined with the additional pressing force from the upper punch.
  • the upper punch can also be involved in exerting a pressing force for pressing the pressed material.
  • a particularly high pressing force can be achieved and the compact can be provided particularly quickly and with high reliability.
  • the additional pressing force of the upper punch preferably means exerting pressure on the pressed material. This can be made possible, for example, by setting up the roller guide of the upper punch. It may also be preferred to exert additional pressure on the pressed material through the upper punch insert.
  • the tool system is characterized in that the upper punch edge element comprises a buffer layer, so that the pressing process on the die disk is cushioned.
  • the buffer layer does not damage the die disk and/or the upper punch due to the cushioning during the pressing process.
  • This also advantageously results in long-lasting functionality of the tool system according to the invention, since effects such as wear and tear caused by the application of pressure during the pressing process are avoided.
  • This advantageously reduces material loss of the die disk and/or the upper punch, since the surface is not stressed by the impacting effect of the upper punch with the help of the buffer layer.
  • a buffer layer is located on the matrix.
  • the presence of the buffer layer on the die causes the upper punch to be cushioned when the pressing material is pressed and can advantageously protect the die and/or the upper punch from wear.
  • a buffer layer refers to a layer that is attached to the upper punch edge element and/or to the die and serves to cushion the upper punch.
  • the buffer layer is provided by an elastomer, which enables sufficient cushioning of the upper punch.
  • the tool system is characterized in that the buffer layer is selected from a group comprising Vulkolan and/or Elastollan.
  • the materials mentioned above are advantageously particularly easy and inexpensive to process and are also well suited for mass attachment to the upper punch edge element and/or to the die. Likewise, these materials are particularly well suited for application and/or coating to the upper punch edge element and/or on the die in order to obtain a desired protective effect of the upper punch edge element, the die disk and/or the die.
  • the tool system is characterized in that the upper punch mold element and the lower punch mold element, in their interaction, form an ellipsoid, a sphere, an oblong, a cone and/or a pyramid.
  • a variety of geometric configurations of the compact can thus advantageously be made possible, which advantageously have no or only a small web and thus form a substantially smooth surface.
  • an ellipsoid preferably refers to the three-dimensional equivalent of an ellipse and can advantageously be provided essentially borderless using the preferred tool system.
  • the upper punch mold element and the lower punch mold element essentially form two halves of the ellipsoid in order to obtain this geometric body. In the interaction of the upper punch mold element and the lower punch mold element, these would form the ellipsoid.
  • a ball can also be provided as a geometric body for the compact, in which case it is preferred that the upper punch molding element and the lower punch molding element essentially form two halves of the ball.
  • an oblong, a cone and/or a pyramid can also be provided as a geometric configuration of the compact by means of the preferred tool system, it being preferred that in these shapes too the upper punch mold element and the lower punch mold element essentially form two halves of the geometric body .
  • the die bore when using a die or a die opening is involved in the shaping of the compact.
  • the tool system is characterized in that two or more compacts can be pressed at the same time using one tool system.
  • the simultaneous pressing of several compacts can preferably be made possible in such a way that, for example, as part of a compression of the pressed material, several upper punch and lower punch mold elements are present in one punch.
  • the upper punch comprises two or more upper punch edge elements with corresponding upper punch mold elements and the lower punch includes a corresponding number of lower punch mold elements.
  • a die has a corresponding number of die openings in the die opening. If, for example, two compacts are to be produced during an interaction of the upper punch and the lower punch, it is preferred that the upper punch has two upper punch edge elements, each with an upper punch shaped element, the lower punch has two lower punch shaped elements and the die has two die bores. With a higher number of compacts to be produced, it is preferred that the number of components described is increased in an analogous manner.
  • the preferred option of pressing several compacts at the same time has significant advantages in the context of a pressing process. For example, during a rotation of the die disk, twice the amount of compacts can be produced with two mold elements of a stamp, three times the amount of compacts with three mold elements each, four times the amount of compacts with four mold elements each, etc. This advantageously results in a significant improvement in the yield of pellets that can be produced.
  • the tool system is characterized in that the upper punch and/or the lower punch are roller-guided for an axially directed movement for the pressing process.
  • a roller guide of a pair of punches comprising an upper punch and a lower punch preferably means that the pressing force is transmitted to the punches by pressure rollers during the pressing of the press material.
  • a pressure roller preferably refers to a wheel that is mounted on an axle and ensures that a punch carries out an axially directed movement in the direction of the die opening.
  • the pressure roller preferably carries out a rolling movement during one revolution of the matrix disk.
  • several pressure rollers are used, and it is also preferred that the pressure rollers are part of a pressure roller station.
  • the pressure rollers preferably guide the upper punch and the lower punch together, so that the upper punch mold element and the lower punch mold element interact, which in turn shapes the shape of the compact.
  • the tool system is characterized in that the compact has a smooth surface after the pressing process, preferably essentially without edges and/or edges.
  • the compact has no or only a reduced web, so that a particularly homogeneous design of the surface of the compact is possible.
  • the invention relates to a press machine comprising a preferred tool system.
  • a pressing machine refers to any machine that is set up to compress pressed material for the production of compacts.
  • the compaction of the press material is preferably carried out by the preferred tool system as part of the press machine.
  • the pressing machine is a tablet press, for example a rotary press.
  • the press machine preferably has a rotor, which forms a crucial component of the press machine.
  • the rotor preferably contains an upper punch holder, a lower punch holder and a die disk.
  • the lower punch holder preferably accommodates individual lower punches in axially parallel bores, which are aligned with the die bores of the die or die openings in the die disk.
  • the upper punch holder accommodates upper punches in axially parallel bores, which are also aligned with the die bores or die openings.
  • the rotor in addition to the die disk, in whose die openings there are preferably dies and the pressed material is filled into the die bore or into the die openings, the rotor can preferably have filling curves.
  • the filling curves mechanically control the movement of the stamps and ensure that the compact can be pressed precisely.
  • the pressing machine has a filling unit.
  • the filling unit includes a filler neck into which the pressed material is filled and a filler shoe through which the pressed material is fed into the die opening or die bore.
  • the press machine has at least one printing station.
  • a printing station comprises one or more pressure rollers, which preferably act on the upper and lower punches in order to press the pressed material filled into die bores or die openings into a solid compact.
  • the compact advantageously has reduced or no edges due to the reduction or the absence of the web, which preferably form a transition region between the web and an upper and/or lower region of the compact.
  • this makes the pellets more pleasant to swallow.
  • the preferred pressing method enables a particularly aesthetic design of the surface of the compact, since irregularities in the contour of the compact are essentially prevented.
  • the upper punch edge element preferably rests on an edge of the die disk above the die opening.
  • the upper punch mold element preferably forms an upper end of the pressed material in order to carry out the shape design of the compact.
  • the lower punch comprising the lower punch mold element preferably carries out an axially directed movement in the direction of the die opening, so that the lower punch mold element and the upper punch mold element interact congruently and a substantially smooth surface of the compact results without deviations in the course.
  • the preferred pressing method can also be carried out when a die is inserted into the die opening of a die disk.
  • the upper punch and the lower punch carry out an axially directed movement in the direction of the die bore of a die.
  • the pressing method is characterized in that an additional pressing force is exerted on the pressing material by the upper punch, preferably after the interaction of the upper punch molding element and the lower punch molding element.
  • the additional pressing force results in a higher pressure on the pressed material.
  • the printing can therefore preferably also be carried out using a combination of upper stamp and lower stamp.
  • the upper punch can preferably be involved in exerting a pressing force for pressing the pressed material.
  • a particularly high pressing force can be achieved and the compact can be provided particularly quickly and with high reliability. It may also be preferred to exert additional pressure on the pressed material using a preferred upper punch insert.
  • the pressing method is characterized in that the lower punch is guided axially upwards after the pressing process from the die opening of the die disk after the production of the compact and the compact is ejected via an ejection station.
  • the axially directed upward movement leads the compact out of the die openings. After the preferred removal, the compact can preferably be ejected via the ejection station.
  • the ejection station refers to a station of a pressing machine, which preferably removes compacts produced after the interaction of the upper punch and lower punch.
  • the ejection station has an ejection rail, which represents a transport route for the manufactured compact in order to carry out further steps for the production and/or logistics of the compact. It may be preferred to fill the compacts into one or more containers or to carry out further control measures on the compacts produced, for example with regard to the material composition.
  • the ejection station can eject a compact if the die disk has a die in its die openings.
  • the pressing process is characterized in that the lower punch is removed after the pressing process the die bore of the die is guided axially upwards after the production of the compact and the compact is ejected via an ejection station.
  • Fig. 1 shows an embodiment of a preferred tool system 1 for use in pressing machines as part of pressing processes for producing compacts.
  • the tool system 1 includes an upper punch 3 and a lower punch 5, which form a pair of punches to compress the pressed material.
  • the upper punch 3 comprises an upper punch edge element 11, the upper punch 3 also having an upper punch molding element 7 and the lower punch 5 having a lower punch molding element 9 . Due to the upper punch edge element 11, the upper punch 3 has a larger diameter compared to the diameters of the upper punch mold element 7 and the lower punch mold element 9.
  • the upper punch mold element 7 is present as a notch in the upper punch edge element 11 and forms an upper end for the pressing material to design the geometric shape of the Presslings.
  • the upper punch edge element 11 can be placed on a die 13 to compress the pressed material.
  • the upper punch molding element 7 and the lower punch molding element 9 work together, with a section of the die 5 also being involved in shaping the compact.
  • the lower punch mold element 9 For a better illustration of the lower punch mold element 9, there is a section to the right of the preferred tool system 1 , which shows the lower punch 5 including the lower punch mold element 9 .
  • the lower punch 5 can be moved into the die bore of the die 13 in an axially directed manner, so that the lower punch molding element 9 with the upper punch molding element 7 forms the shape of the compact. Part of the die 13 is involved in the formation of the shape of the compact.
  • the use of the preferred tool system 1 advantageously results in a substantially rimless compact, ie a compact without or with a reduced web, which comes with numerous advantages and represents a significant improvement over the state of the art.
  • the advantage here is that a substantially smooth surface of the compact is produced, which has no irregularities and in particular is designed without edges, so that the compact has a particularly high symmetry. Due to the particularly uniform design, the compact that can be produced with it has improved stability and resistance to breakage.
  • the compact also advantageously has reduced or no edges due to the reduction or the absence of the web, which preferably form a transition region between the web and an upper and/or lower region of the compact.
  • the pellets are therefore more pleasant to consume and do not interfere with swallowing the pellet, for example when taking medication.
  • the smooth surface of the compact creates a particularly aesthetic appearance, since there are no irregularities in the contour.
  • the upper punch edge element 11 and the upper punch mold element 7 form sections of an upper punch insert 15, so that the upper punch 3 is constructed in multiple components. Due to a multi-component structure of the upper punch 3 , maintenance and cleaning of, for example, the upper punch mold element 7 and upper punch edge element 11 is advantageously much easier to carry out.
  • Fig. 2 also shows an embodiment of the preferred tool system 1.
  • the tool system 1 includes the upper punch 3 and the lower punch 5, through which the upper punch molding element 7 and the lower punch molding element 9 interact during a pressing process, whereby a substantially rimless compact can be produced.
  • the die 13 is also involved in shaping the compact.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
EP22165078.1A 2022-03-29 2022-03-29 Dispositif de fabrication de pièces pressées sans bord Withdrawn EP4253026A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP22165078.1A EP4253026A1 (fr) 2022-03-29 2022-03-29 Dispositif de fabrication de pièces pressées sans bord
EP23164661.3A EP4253027A1 (fr) 2022-03-29 2023-03-28 Dispositif pour fabriquer des pièces moulées sans bordure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22165078.1A EP4253026A1 (fr) 2022-03-29 2022-03-29 Dispositif de fabrication de pièces pressées sans bord

Publications (1)

Publication Number Publication Date
EP4253026A1 true EP4253026A1 (fr) 2023-10-04

Family

ID=80999094

Family Applications (2)

Application Number Title Priority Date Filing Date
EP22165078.1A Withdrawn EP4253026A1 (fr) 2022-03-29 2022-03-29 Dispositif de fabrication de pièces pressées sans bord
EP23164661.3A Pending EP4253027A1 (fr) 2022-03-29 2023-03-28 Dispositif pour fabriquer des pièces moulées sans bordure

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP23164661.3A Pending EP4253027A1 (fr) 2022-03-29 2023-03-28 Dispositif pour fabriquer des pièces moulées sans bordure

Country Status (1)

Country Link
EP (2) EP4253026A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU487786A1 (ru) * 1973-08-27 1975-10-15 Всесоюзный Научно-Исследовательский Конструкторско-Технологический Институт Подшипниковой Промышленности Устройство дл прессовани заготовок шариков
GB1590468A (en) * 1977-09-12 1981-06-03 Ptx Petronix Inc Apparatus and method for compacting powder material
WO1995000043A1 (fr) * 1993-06-22 1995-01-05 Unifrost Gesellschaft M.B.H. Preparation de fruits a noyau fourres
WO1999058320A1 (fr) * 1998-05-12 1999-11-18 Fuisz Technologies Ltd. Ameliorations apportees a un ensemble matrice avec tete destine a façonner des unites posologiques par compression
JP2002273600A (ja) * 2001-01-12 2002-09-25 Kansai Koso Kk 固形剤製造装置
EP2335915A1 (fr) * 2008-09-08 2011-06-22 Taisho Pharmaceutical Co., Ltd Matrice de compression de comprimés
JP2012148321A (ja) * 2011-01-20 2012-08-09 Kikusui Seisakusho Ltd 粉体圧縮成形機及び成形物の製造方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3591903A (en) * 1969-10-15 1971-07-13 Nat Forge Co Isostatic press with multipart mold
DE19854075A1 (de) * 1998-11-24 2000-05-25 Henkel Kgaa Verfahren zur Serienfertigung von Formkörpern mit geringer Härteschwankung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU487786A1 (ru) * 1973-08-27 1975-10-15 Всесоюзный Научно-Исследовательский Конструкторско-Технологический Институт Подшипниковой Промышленности Устройство дл прессовани заготовок шариков
GB1590468A (en) * 1977-09-12 1981-06-03 Ptx Petronix Inc Apparatus and method for compacting powder material
WO1995000043A1 (fr) * 1993-06-22 1995-01-05 Unifrost Gesellschaft M.B.H. Preparation de fruits a noyau fourres
WO1999058320A1 (fr) * 1998-05-12 1999-11-18 Fuisz Technologies Ltd. Ameliorations apportees a un ensemble matrice avec tete destine a façonner des unites posologiques par compression
JP2002273600A (ja) * 2001-01-12 2002-09-25 Kansai Koso Kk 固形剤製造装置
EP2335915A1 (fr) * 2008-09-08 2011-06-22 Taisho Pharmaceutical Co., Ltd Matrice de compression de comprimés
JP2012148321A (ja) * 2011-01-20 2012-08-09 Kikusui Seisakusho Ltd 粉体圧縮成形機及び成形物の製造方法

Also Published As

Publication number Publication date
EP4253027A1 (fr) 2023-10-04

Similar Documents

Publication Publication Date Title
DE2604648C2 (de) Rundlaufpresse
DE69405010T2 (de) Rundlauf-tablettiermaschine
EP0204266B1 (fr) Presse à tablettes
EP1764173B1 (fr) Dispositif pour mouler de la poudre par pression
AT392210B (de) Tablettiermaschine
WO2006136611A1 (fr) Machine de formation de pastilles a plateau tournant, et procede pour realiser une pastille multicouche
DE60111246T2 (de) Schlagschmiedemaschine und verfahren zum formen eines gegenstandes
EP3079894A2 (fr) Procédé de fabrication d'une pièce moulée
DE1577221C3 (de) Presse zum Verpressen von pulverförmigem Material
DE69119932T2 (de) Schieber zur Zweistufenbefüllung von Keramikformen, insbesondere zur Herstellung druckglasierter Keramikplatten
DE2852429A1 (de) Verfahren bei der herstellung von sinterteilen und werkzeug zur ausuebung des verfahrens
DE1502303A1 (de) Tablettenpresse
DE3916774C2 (fr)
DE2029094B2 (de) Rundlauf-Tablettierpresse
EP2111972B1 (fr) Poinçon pour une presse rotative
EP4253026A1 (fr) Dispositif de fabrication de pièces pressées sans bord
EP2281683B1 (fr) Procédé de production d'un élément de poudre comprimé et dispositif correspondant
DE4318512C2 (de) Verfahren und Vorrichtung zum Extrudieren von pulverförmigem Material
DE19828004B4 (de) Verfahren zur Erzielung einer konstanten Preßkraft bei Tablettiermaschinen
DE2002684A1 (de) Verfahren und Vorrichtung zur Herstellung von Zahnradkoerpern mit Schraub- oder Schneckenverzahnung
EP2776237B1 (fr) Procédé et presse de compression d'une pièce constituée d'au moins deux matériaux métalliques et/ou céramiques pulvérulents et/ou granulaires différents
DE102009031367B3 (de) Pressstempel für eine Rundläuferpresse
DE976579C (de) Presswerkzeug zum Herstellen von zu sinternden Presskoerpern aus Metallpulver
EP1473145A2 (fr) Procédé pour le pressage d'essai de comprimés
DE535906C (de) Verfahren zur Herstellung von Drucktypen durch Zusammenpressen von Metallpulvern

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20240405