Apparatus and related mould

Abstract

The invention relates to a device for producing plastic containers according to a molding-filling-sealing process, comprising at least a molding device (26) having at least one mold (28) having a plurality of mold recesses (34) which predefine the contour and volume of the respective container, and a production device, the production device supplies plasticized plastic material to a respective mold (28) of a molding device (26), by means of which the container is molded and can be closed after filling a fluid, and the production device has a respective mandrel (12) of an output device (14) for filling the fluid, the mandrels (12) are each assigned to a tool recess (34) in a tool (28) of the forming device (26), characterized in that the central longitudinal axes (36) of adjacent mandrels (12) have a predeterminable constant spacing dimension A from each other, the distance dimension B between the respective adjacent mould recesses (34) of the moulds (28) which differ from one another at least with respect to the dimensions of the mould recesses (34) thereof is adapted to the distance dimension A within a parameterized range in such a way that different container dimensions can be produced using only one output device (14) and a set of parameterized moulds (28).

Description

Technical Field

[0001] The present invention relates to an apparatus for producing plastic containers according to a form-fill-seal process (BFS process) and a related mold, the apparatus comprising at least a forming device having at least one mold having a plurality of mold recesses with predetermined contours and volumes of corresponding containers; and a production device, the production device supplies plasticized plastic material to the corresponding mold of the forming device, the container is formed by means of the forming device and can be closed after filling with fluid, and the production device has individual spindles of an output device for filling with fluid, and these spindles are respectively assigned to a mold recess in a mold of the forming device. Background Art

[0002] DE102020002077A1 discloses a method and a related device for producing at least one container filled with a medium and made of a plastic material, characterized by having at least the following method steps:

[0003] - extruding the tube in a preforming position by means of an extrusion device in a vertical extrusion direction using an auxiliary gas;

[0004] - closing the hose at its lower end and separating it at its upper open end;

[0005] - transporting the preforms cut to length in this way from the preforming position into the open mold by means of a gripper device in a linear transport direction transverse to the extrusion direction;

[0006] - Transferring the preform into the open mold in the main forming position by means of a gripper device;

[0007] - closing the mould so that the preform is further shaped by the pressure gradient;

[0008] - filling and closing the preforms; and

[0009] - The clamping device is transported back for repeating the above method steps.

[0010] WO 02 / 49821 A2 discloses a method for blow molding, filling and closing containers, wherein at least one hose of plasticized plastic material is squeezed into an open mold. The hose is welded at its front end by closing the mold. In addition, the hose is cut above the mold by means of a separating element to form a filling opening. The mold is then moved with the hose section located therein into a filling position, where the container is formed and filled by means of a blow molding mandrel in the mold. After filling, the container still in the mold is closed. In addition, a corresponding device is disclosed.

[0011] WO2020 / 201061A1 discloses a blow mold for a blow molding machine, which is used to produce empty plastic containers in an extrusion or stretch blow molding process, and the blow mold includes two blow mold halves, each of which has at least one mold body and a substrate for accommodating a mold body, and at least one mold cavity is arranged in the at least one mold body. An insulating block made of insulating material is arranged between the mold body and the substrate and possible other parts of the blow mold half. In this way, the material to be heated or cooled again should be significantly reduced and the related heating or cooling basically only involves the mold body, thereby reducing the energy consumption associated with this. The mold cavity that can be heated and then immediately cooled again (in the form of the mold recess of the mold) combined with the polished molding wall surface of the mold cavity and the short cooling time also allows the manufacture of plastic containers with a bright surface.

[0012] In these and other known equipment solutions, a separate mold is manufactured for each container size and in the case of the BFS process, a specific filling or dispensing device with its respective blow molding and / or filling mandrels (hereinafter referred to as mandrels) is adapted thereto. In the case of correspondingly large-volume containers, for space reasons, the number of mold recesses in the mold and the number of associated mandrels of the filling or dispensing device must be reduced accordingly. Also, in view of the high productivity of the container, if the container size is correspondingly small, the number of mold recesses in the mold and the number of mandrels are increased. Ultimately, this leads to an increase in the expenditure on mold manufacturing and production equipment manufacturing, as shown by way of example in DE 10 20 2000 2077 A1. Summary of the invention

[0013] Starting from this prior art, the object of the present invention is to further improve the known solutions in such a way that the outlay associated with the equipment and tool production is reduced while the production rate of finished containers is comparable to that shown in the prior art.

[0014] The above-mentioned object is achieved by a device having all the features of patent claim 1 and a related mold designed according to the features of patent claim 3.

[0015] According to the invention, the central longitudinal axes of adjacent mandrels have a predeterminable constant distance dimension A from one another, and the distance dimension B between adjacent mold recesses of molds that differ from one another at least in terms of the size of their mold recesses is adapted within the parameterization to the distance dimension A in such a way that different container sizes can be produced using only one dispensing device and a set of parameterized molds. In this way, filled containers of different sizes can be produced using only one filling or dispensing device with a predeterminable number of mandrels and different molds. The filling material is preferably a liquid, but can also be an emulsion or suspension for medical purposes, such as an infusion solution, a dialyzing solution or an enteral nutrition solution.

[0016] Surprisingly for a person skilled in the art in the field of such forming, filling and sealing processes, the parameterization of the above-mentioned spacing dimensions has resulted in new machine and mold standards, which significantly reduce the effort in producing filled containers, in particular filled and sealed bottles with a volume of 50 ml and more, especially when, for example, the container shape / container size is to be changed with the same filling material and the mold is therefore changed. This has no equivalent in the prior art.

[0017] Within the scope of this parameterization of the distance dimension, it has proven to be advantageous to provide a predeterminable distance dimension A for the spindles of the dispensing device between 6 and 10 cm, preferably between 7 and 8 cm.

[0018] The mold used in the device is characterized in that a plurality of molds for producing different containers, in particular of different volumes, have the same spacing dimension B and that the plurality of spacing dimensions B correspond to a predeterminable spacing dimension A, which is derived as a grid dimension (Rastermaβ) within a parameterized range from the spacing between adjacent central longitudinal axes of the mandrels of the output device.

[0019] Preferably, provision is made here for the spacing dimension B of different molds for producing containers of different volumes to be determined by the distance between adjacent mold recesses as a parameterized variable It has been shown that when using semi-crystalline plastics as the plastic material for the container products, a high surface quality and a higher transparency of the container can be achieved by appropriately selecting the corresponding bridge width S, so as to ensure in a simple manner an optical non-destructive inspection of the finished container, for example with regard to possible particle contamination of the container with its contents. For this purpose, it is particularly advantageously provided that, for the production of containers with a nominal volume of less than 1 liter, the parameterized bridge width S is selected in the range of 10 mm to 40 mm, preferably 10 mm to 35 mm, particularly preferably 10 mm to 33 mm. It has proven to be particularly advantageous for the parameterization that, in order to maintain a predeterminable grid size or spacing dimension A (which is also expressed in professional terms as cavity spacing and should preferably be 75 mm), the individual bridge widths S are parameterized to 28 mm to 35 mm for a container nominal volume of 100 ml, to 23 mm to 33 mm for a container nominal volume of 250 ml and to 12 mm to 30 mm for a container nominal volume of 500 ml.

[0020] In another particularly preferred embodiment of the mold according to the invention, it is provided that the mold is essentially composed of two identical mold halves, which are superimposed on each other and define a corresponding mold recess, which is closed on the bottom side and open on the top side. Preferably, the corresponding mold half is assembled from individual segments, including a separate segment for the top side and a separate segment for the bottom side, and a separate segment located in between, which has a mold recess and a bridge arranged between the mold recesses and has a predeterminable width, and the parameterized bridge width S of the bridge remains constant within the individual segment. In this way, a modular system consisting of a plurality of different individual segments is provided, which can be assembled into a corresponding mold, so that a large number of container sizes and container shapes can be covered with only a few basic components. In particular, the same individual segments can be used for the top side and the bottom side, as long as only the individual segments located in between and having the mold recess are suitable for different container volumes. For example, for a small container volume, the axial installation length of the separate segment located in the middle can be constructed to be shorter than that of a large-volume container, that is, the container volume to be produced can be predetermined by the installation length of the mold recess or cavity in the separate segment in the middle, and during operation, the longitudinal axis of the corresponding mold recess extends coaxially with the longitudinal axis of the dispensing spindle of the filling or dispensing device, that is, although the volume in the mold changes, the spacing dimension B does not change in this case.

[0021] In another preferred embodiment of the mold, it is provided that the individual segments, in particular the individual segments with the mold recesses and the bridges with parameterized width located therebetween, are made of aluminum bronze, particularly preferably of beryllium-free aluminum bronze. The use of such materials, compared to other used materials such as aluminum, steel or non-ferrous metals, allows an increase in the thermal conductivity of the mold, thereby increasing the productivity of the BFS production process and providing good inspectability of the container product.

[0022] In order to improve the surface quality of the container, it can also be preferably provided that the surface of the mold recess of the mold is polished.

[0023] Due to the standardization of the individual segments for the molds, these molds can also be uniformly temperature-controlled and provided with connections for conducting cooling media in a particularly simple manner.

[0024] Within the scope of the overall parameterization, it has also proven to be advantageous in terms of productivity if the corresponding mold has 4 to 12, particularly preferably 8, mold recesses as a further grid size.

[0025] The subject of the solution according to the invention also relates to a system consisting of a set of molds, characterized in that, in order to produce plastic containers of different volumes, individual molds are provided, which have mold recesses of different sizes, which have the same spacing dimension B with respect to each other within the parameterization range, and the spacing dimension corresponds to the predeterminable spacing dimension A between the mandrels of the filling or dispensing device. Through this system, different molds can be used to produce container products with different volumes without substantially modifying the filling or dispensing device. Typical nominal filling quantities (the quantity to be contained in the package according to Section 6 of the Metering Act) of such containers for infusion solutions are, for example, 50 ml, 100 ml, 250 ml and 500 ml. Since a certain amount of air is also required in the container, the total volume of these containers is always greater than the nominal filling quantity. For nominal filling quantities above 50 ml, the container is usually completely formed in the mold by blowing in sterile air via the corresponding mandrel before filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The solution according to the invention is described in detail below with reference to the accompanying drawings using an exemplary embodiment. The accompanying drawings are shown in principle and not to scale. The accompanying drawings are as follows:

[0027] Figure 1 A perspective view of a filling or dispensing device with eight mandrels and a central control unit arranged below the filling or dispensing device according to Figure 3 The mold halves of the mold shown;

[0028] Figure 2 A perspective view of a mold consisting of two mold halves separated from one another, each of which is essentially assembled from three individual segments;

[0029] Figures 3 to 5 showing in perspective view the mold halves of the mold for container sizes of 100 ml, 250 ml and 500 ml respectively; and

[0030] Figure 6 The container product is shown in a side view, which can be, for example, Figure 3 The mold shown is manufactured. DETAILED DESCRIPTION

[0031] In the prior art already cited, the hose extruded from the hose head is introduced into the mold by means of a clamp (DE 10 20 20 00 2 077 A1) or is extruded directly into an open mold.

[0032] For simplicity, Figure 1Only the filling or dispensing device 14 and its individual blow-molding-filling mandrels 12 of the above-mentioned structure are shown, which are used for blow molding and dispensing the corresponding filling medium into the container body 18 of the container 16 to be manufactured respectively. The above-mentioned dispensing device 14 can be moved up and down in the vertical direction by means of a servo drive 20. In this way, in particular, the mandrel 12 can be moved back upward after the corresponding container body 18 is filled, so that the sealing unit (not shown further) can close the corresponding container product through the head part 22 to be molded, which is usually connected to the container body 18 in one piece via a neck part 24 (see Figure 6 ). The above-mentioned sealing unit is prior art, and thus will not be described in detail here.

[0033] For the sake of simpler illustration and better understanding, the aforementioned numerous additional components of the extrusion head or the shaping device are not shown in any case.

[0034] In accordance with Figure 1 In the illustration of FIG. 1 , a mold half 32 of the mold 28 is shown below the filling or dispensing device 14 in each case, as described in more detail for predeterminable container sizes in FIG. Figure 2 The simplified illustration above is intended only to illustrate that each mandrel 12 is assigned a mold recess 34, which has the introduced hose material or container material. Figure 1 Only one half of the mold recess 34 in the relevant mold half 32 is shown. The mold recess 34 formed by the two closed mold halves 30, 32 as the corresponding mold 28 is used as a whole for container production, and the plastic hoses respectively plasticized by the extrusion head enter the assigned mold recess 34 of the corresponding mold 28 of the molding device 26. The molded hose is separated on the top side, and the container body 18 is molded in the relevant mold recess 34 by blow molding and / or vacuum molding with the help of the set mandrel and filled with a predeterminable medium such as a liquid drug by the mandrel 12 of the filling or dispensing device 14. For this purpose, the filling or dispensing device 14 is located in a lowered filling position with its mandrel 12 using the servo drive 20. Subsequently, the device 14 moves back upward in the opposite direction and performs head molding and sealing as described above with the help of a sealing unit not further shown. The container product produced in this way leaves the mold 28 as a filled container 16, as it is in Figure 6 Of course, other container geometries can be manufactured at will if desired.

[0035] like Figure 1 As further shown, the central longitudinal axes 36 of adjacent mandrels 12 have a predeterminable constant spacing dimension A from one another. All filling mandrels 12 are designed as hollow cylinders for fluid delivery and are concentric with their respective central longitudinal axes 36. For simplicity, only the filling mandrels 12 are described. Figure 1The distance dimension A is plotted as an assumed variable between the two right mandrels 12 in the viewing direction. However, the distance dimension A is constant between all adjacent mandrels 12. Within the scope of parameterization, the distance dimension B between the individual adjacent mold recesses 34 of the molds 28 that differ from one another at least in terms of the size of their mold recesses 34 is adapted to the distance dimension A in such a way that different container sizes can be produced using only one output device 14 and a set of parameterized molds 28. Figure 1 In the view of FIG. 1 , the spacing dimension B corresponding to the spacing dimension A is formed by the central longitudinal axis 38 of two adjacent mold recesses 34 of the mold 28. In this respect, the spacing dimension B, like the spacing dimension A, is also an assumed reference variable within the scope of the parameterization. Figure 1 Only half of the mold recess 34 is shown in the figure; however, once the mold halves 30, 32 are placed against each other to form the complete mold 28, the distance dimension relationship between A and B also applies to the corresponding complete mold recess 34. In this case, it has proven to be particularly advantageous to select the predeterminable distance dimension A between 6 cm and 10 cm, preferably between 7 cm and 8 cm.

[0036] Especially from Figures 3 to 5 As can be seen, all molds 28 for different container volumes, for example 100 ml, 250 ml and 500 ml, have the same spacing dimension B, which corresponds to the spacing dimension according to Figure 1 The predeterminable spacing dimension A. Figures 3 to 5 The illustration shows a respective front view of a mold half 32 of a respective mold 28, and the central longitudinal axis 38 of adjacent mold recesses 34 or mold recess halves for the respective mold half 32 of the respective mold 28. Figures 3 to 5 All molds 28 are identical. In particular, according to Figure 3 The mold 28 corresponds to the Figure 1 Thus, a plurality of molds 28 for different containers 16 with different container volumes have the same spacing dimension B, which corresponds to the spacing dimension according to Figure 1 The distance dimension A is measured between the central longitudinal axes 36 of two adjacent mandrels 12 in the mandrel arrangement of FIG. Thus, the distance dimension B results from the distance A within the parameterization.

[0037] The distance dimension between the central longitudinal axes 38 of two adjacent mold recesses 34, which is indicated by the reference symbol B, is also referred to as the cavity distance in professional terms, and a cavity distance B of 75 mm has proven to be particularly advantageous within the scope of the embodiment proposed here. Figures 3 to 5 In the figure, only the corresponding central longitudinal axis 38 is drawn for the two right-hand mold recesses 34; however, the relationship applies to Figures 3 to 5 All the tool recesses 34 of the tool 28 are equidistant from each other.

[0038] In order to Figures 3 to 5 In order to achieve a constant spacing dimension B in different molds 28 for producing containers 16 of different volumes, different bridge widths S between adjacent mold recesses 34 are achieved for the molds 28 as parameterized variables.

[0039] Therefore, in order to produce a container 16 with a volume of 100 ml, according to Figure 3 The (half-shown) mold 28 uses a value of 32.2 mm as the parameterized variable or bridge width S, which is Figure 3 The values ​​are shown as being measured between adjacent walls of mutually adjacent mold recesses 34. Figure 3 In the embodiment of FIG. 5 , the bridge width S is the same for all mold recesses 34 .

[0040] In accordance with Figure 4 In the embodiment for producing a container 16 with a volume of 250 ml, a value of 26.5 mm is selected as the bridge width S and thus as a parameterized variable, while the spacing dimension B remains constant. As mentioned above, the spacing dimension B is Figures 3 to 5 All molds 28 are kept the same. Figure 5 In the embodiment of the mold 28 for producing a corresponding container volume of 500 ml, a value of 26.5 mm is also selected as the bridge width S, which is consistent with the Figure 4 The width S of the bridge portion corresponds to Figure 4 The container volume of 250 ml is shown in half compared to the Figure 5 The container volume of 500 ml, which is doubled in the solution of , is obtained by the following manner: the corresponding mold recess 34 is correspondingly extended in the axial direction (ie, in an orientation concentric with the respective central longitudinal axis 38). In this regard, the spacing dimension B also remains constant and is adapted to the spacing dimension A.

[0041] Overall, for containers 16 with a volume of less than 1 liter, the parameterized bridge width S is produced in the range of 10 to 40 mm, preferably 10 to 35 mm, particularly preferably 10 to 33 mm, as shown in FIG. Figures 3 to 5 As described in the implementation method of .

[0042] In particular, in order to maintain a predeterminable spacing dimension A of preferably 75 mm, for containers, in particular for infusion solutions or flushing solutions and with a nominal fill volume of not more than 500 ml, the individual bridge widths S are parameterized to 28 mm - 35 mm for a container nominal volume of 100 ml, to 23 mm to 33 mm for a container nominal volume of 250 ml and to 12 mm to 30 mm for a container nominal volume of 500 ml.

[0043] If only containers with a nominal filling volume of not more than 250 ml are to be produced with one set of molds 28 , then preferably the spacing dimension A is 50 mm and the bridge width S as a parameterized variable is 10 mm to 20 mm.

[0044] In addition, if Figure 2 It is further shown that each mold 28 consists essentially of two identical mold halves 30, 32, which define, overlapping one another, respective mold recesses 34 which are closed toward the bottom side 40 and open toward the top side 42. Figure 2 As can be seen further in the figure, the respective mold halves 30, 32 are assembled from individual segments 44, 46, 48, including individual segments 44 for the top side and individual segments 46 for the bottom side 40, as well as individual segments 48 located therebetween, which have the main part of the respective mold recess 34. Between adjacent mold recesses 34 in a row there are respective bridges 50 extending parallel to each other, whose bridge width S is determined according to Figures 3 to 5 The illustration of is parameterized accordingly and remains constant within the individual segments 46. In this regard, the bridge 50 extends transversely to the longitudinal orientation of the respective individual segments 44, 46 and 48. Figure 2 As can be seen from the view, the corresponding mold 28 is provided with a connection 52, which is used for supplying and discharging a cooling medium, which is not described in more detail, in order to quickly cool the introduced plasticized plastic material within the scope of container production or to apply a vacuum in the corresponding mold recess 34 to ensure that the plastic material is cleanly attached to the mold wall of each mold recess 34.

[0045] like Figures 3 to 5 As shown, a system of individual dies 28 is provided, which have die recesses 34 of different sizes, but all of which have the same spacing dimension B from one another within the parameterization, which corresponds to a predeterminable spacing dimension A between adjacent mandrels 12 of the discharge device 14. In this regard, the dies 28 usually differ from one another within the parameterization essentially only by the predeterminable bridge width S of the individual bridges 50 of each die 28.

[0046] In order to reasonably maintain the relative parameters of the spacing dimension B and the bridge width S, it has proven advantageous within the scope of a rapid production sequence to provide a total of eight mandrels 12 and eight mold recesses 34 in each mold 28. This enables a high production output of finished containers 16.

[0047] For the sake of simplicity, all illustrations of the mold 28 do not show the associated forming means for producing the head part 22 for the corresponding container 16. The above-mentioned head forming means are very common and will not be described in detail here.

[0048] In addition, semicrystalline polyolefins are suitable as plastics for the production method according to the invention and as container materials, such as polyethylene (PE), in particular low-density polyethylene (PE-LD), high-density polyethylene (PE-HD) and polypropylene (PP). Blends of semicrystalline polyolefins with amorphous polyolefins, such as cycloolefin polymers (COP) and cycloolefin copolymers (COC), can also be processed advantageously. Thus, it is also possible to produce a container 16 as in DE 103 47 908 A1, which has a corresponding multilayer structure for the container wall.

[0049] As a specific example, a BP321 bottle packaging machine of the company rommelag in Wiblingen, Germany, was used to manufacture a closed one-piece infusion container 16 filled with water, which had four different nominal volumes (100 ml, 250 ml, 500 ml and 1000 ml) and an average wall thickness of 0.35 to 0.52 mm from different PP and PE materials according to the blow molding, filling and sealing or capping process. The materials used were PP: LyondellBasell RP 270G; Borealis SB 815MO, Flint Hills Rexene 23M2A and LDPE: LyondellBasell Purell 3020D and 3220D. For this purpose, a mold 28 made of different materials with eight cavities or mold recesses 34 and bridges 50 with different bridge widths S from 20 mm to 50 mm was used. In the context of plastic container production, the corresponding mold recess 34 is cooled accordingly by supplying a suitable cooling medium via the sub-connector 52 . Figure 6 The container shape of the container 16 shown in FIG. 1 and produced by means of the device according to the invention corresponds to that of DE 10 2016 002 467 A1. Figure 1 and Figure 2 The container solution shown in .

[0050] In addition, the filled container body 18 is sterilized by heat treatment (autoclaving). The optical quality (transparency) of the different containers 16 is determined similarly to ASTM D1003-11. Total transmittance, haze and image clarity, surface gloss and color all have an influence on transparency. The transmittance, haze and clarity values ​​of the individual BFS containers 16 are determined using a haze-gard plus measuring device from BYK Gardner GmbH, 82538 Geretsried. The device measures the transmittance at a light wavelength of 550-650 nm. At the measuring point, the wall thickness of the container 16 is about 0.45 mm.

[0051] The best results can be achieved with a container 16 and a bridge width S of between 10 and 40 mm, preferably between 10 and 35 mm, particularly preferably between 10 and 33 mm, in particular if the mold 28 and its mold recess 34 are made of a beryllium-containing copper alloy, whose beryllium content is usually between 0.5% and 3%. However, it is particularly preferred to use a mold 28 made of beryllium-free (beryllium content less than 0.3%) aluminum bronze with an aluminum content of between 8% and 16%, although its thermal conductivity at 20° C. is significantly below 100 W / (m*K).

[0052] Despite the temperature control of the mold 28, the bridge width S and therefore the heat capacity directly available for cooling the hot soft plastic hose plays a decisive role in the crystallization behavior (nucleation and nucleus growth) of the plastic used. This is particularly true when using molds 28 made of aluminum bronze. For the transparency properties of the respective container 16, it has proven to be advantageous if the wall of the mold recess 34 of each mold 28 is polished.

[0053] In this way, a device is provided for the low-cost production of containers 16, in particular for filling them with fluids for medical purposes according to the BFS process, by means of which the surface quality of the container 16 can be improved and the transparency increased by reasonable parameterization of the bridge width S when using semi-crystalline plastics, and optical non-destructive inspections, for example regarding particle contamination of the container 16 and its contents, can be facilitated.

Claims

1. A device for producing plastic containers (16) according to a form-fill-seal process, the device comprising at least a forming device (26) and a production device, the forming device having at least one mold (28), the mold having a plurality of mold recesses (34) predetermining the contour and volume of the corresponding container (16), the production device supplying plasticized plastic material to the corresponding mold (28) of the forming device (26), the container (16) is formed by means of the forming device and can be closed after filling with a fluid, and the production device has individual mandrels (12) of the output device (14) for filling with fluid, the mandrels being respectively assigned to a mold recess (34) in a mold (28) of the forming device (26), characterized in that The central longitudinal axes (36) of adjacent mandrels (12) have a predetermined constant spacing dimension A with respect to one another, and the spacing dimension B between adjacent mold recesses (34) of molds (28) that differ from one another at least in terms of the size of their mold recesses (34) is adapted within a parameterized range to the spacing dimension A in such a way that different container sizes can be produced using only one output device (14) and a set of parameterized molds (28).

2. The device according to claim 1, characterized in that The predeterminable distance dimension A is between 5 cm and 10 cm, preferably between 5 cm and 8 cm.

3. A mold for producing containers of different volumes, the mold being particularly designed for use in an apparatus according to claim 1 or 2, characterized in that: A plurality of dies (28) in the die have the same spacing dimension B and the plurality of spacing dimensions B correspond to a predeterminable spacing dimension A which results within a parameterized range from the spacing between adjacent central longitudinal axes (36) of a mandrel (12) of a dispensing device (14).

4. The mold according to claim 3, characterized in that: In order to produce containers (16) of different volumes, the spacing dimension B is achieved by different bridge widths S between adjacent mold recesses (34) as a parameterized variable.

5. A mould according to claims 3 to 4 for producing containers (16) having a nominal filling volume of not more than 1 litre, characterised in that The parameterized web width S is selected within the range of 10 to 40 mm, preferably 10 to 35 mm, particularly preferably 10 to 33 mm.

6. The mold according to any one of claims 3 to 5, characterized in that In order to maintain a predeterminable spacing dimension A of preferably 75 mm, the individual bridge widths S are parameterized to 28 mm-35 mm for a container nominal volume of 100 ml, 23 mm-33 mm for a container nominal volume of 250 ml and 12 mm-30 mm for a container nominal volume of 500 ml.

7. The mold according to any one of claims 3 to 6, characterized in that The molds each consist essentially of two identical mold halves (30, 32) which fit together and define a corresponding mold recess (34) which is closed on the bottom side (40) and open on the top side (42).

8. The mold according to any one of claims 3 to 7, characterized in that The respective mold halves (30, 32) are assembled from individual segments (44, 46, 48), including an individual segment (44) for the top side (42) and an individual segment (46) for the bottom side (40) and an individual segment (48) located therebetween, the individual segments located therebetween having mold recesses (34) and bridges (50) with a predeterminable width arranged between the mold recesses, the parameterized bridge width S of the bridges being kept constant within the individual segments (46).

9. The mold according to any one of claims 3 to 8, characterized in that The individual segments (44, 46, 48), in particular the individual segments (48) with the die recesses (34) and the bridges (50) with parameterized width S located between the die recesses, are made of aluminum bronze, particularly preferably of beryllium-free aluminum bronze.

10. The mold according to any one of claims 3 to 9, characterized in that The surface of the mold recess (34) is polished.

11. The mold according to any one of claims 3 to 10, characterized in that The mold is temperature-controllable and preferably has a connection ( 52 ) for supplying a cooling medium.

12. The mold according to any one of claims 3 to 11, characterized in that The molds each have 4 to 12, preferably 8, mold recesses (34).

13. A system consisting of a group of individual dies (28), in particular according to any one of claims 3 to 12, for use in a device, in particular according to claim 1 or 2, characterized in that: In order to produce plastic containers (16) of different volumes, individual molds (28) are provided, which have mold recesses (34) of different sizes, which have the same spacing dimension B with respect to one another within a parameterized range, and which corresponds to a predeterminable spacing dimension A between adjacent mandrels (16) of an output device (14).

14. The system according to claim 13, characterized in that The system comprises at least two moulds (28) with which plastic containers (16) with nominal filling volumes of 500 ml and 250 ml can be produced, in particular for medical purposes, such as for infusion and / or irrigation.

15. The system according to claim 13, characterized in that The system comprises at least two moulds (28) with which plastic containers (16) with nominal filling volumes of 250 ml and 100 ml can be produced, in particular for medical purposes, such as for infusion and / or irrigation.

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