Device for shaping plastic material preforms into plastic material containers

Abstract

The utility model relates to equipment (1) for forming a plastic material preform (10) into a plastic material container (15), which is provided with a conveying device (2), the conveying device conveys the plastic material preform to be formed along a predefined conveying path, the conveying device (2) is provided with a rotatable conveying carrier (22), and the rotatable conveying carrier (22) is used for conveying the plastic material preform (10) to be formed into the plastic material container (15). A plurality of forming stations (4) are arranged on the rotatable conveying carrier, the forming stations (4) each have a blow molding device, in which the plastic material preforms (10) can be formed by applying a flowable medium into the plastic material containers (15), and wherein the forming stations (4) each have an application device (40), in which the plastic material preforms (10) can be formed by applying a flowable medium into the plastic material containers (15). The utility model relates to a device (1) for injecting a flowable medium into a plastic material preform (10) in order to apply the flowable medium to the plastic material preform (10), and wherein the device has a clean chamber (8) in which the plastic material preform (10) is expanded into the plastic material container, characterized in that the device (1) has an ejection device (60) for ejecting the plastic material preform (10) into the clean chamber (8). The ejection device (60) is used for ejecting plastic material preforms or plastic material containers from the conveying path, and the ejection device (60) is integrated in the clean room, and / or the ejection device (60) is integrated in at least one wall which delimits the clean room.

Description

TECHNICAL FIELD

[0001] The present utility model relates to a device and a method for forming plastic material containers from plastic material preforms. Such devices and methods have been known for a long time. Typically, a heated plastic material preform is expanded into a container using a gas, in particular compressed air. BACKGROUND

[0002] Recently, efforts have been made to allow such containers to be manufactured in a sterile manner. This is advantageous for bottling certain beverages. In the prior art, it is tried first to manufacture the containers (for example to stretch blow the containers) and then to sterilize. Recently, systems have also become known in which the preforms have already been sterilized and then formed (for example, stretch blown) in a clean room.

[0003] Problems can arise, for example, if a container has been damaged or is damaged during the blow molding process. Such damaged containers can cause problems in the system after manufacture or after an attempt at manufacture. For this reason, it is known per se to eject the containers from the conveying path of the containers.

[0004] However, in the case of a sterile blow molding process, this ejection is accompanied by problems since it must be carefully ensured that the sterility of the blow molding process is not disturbed or interrupted. SUMMARY

[0005] It is therefore an object of the present utility model to improve the operating sequence of such a sterile blow molding machine. This is achieved according to the utility model by the subject matter of the independent claim. Advantageous embodiments and improvements are the subject matter of the dependent claims.

[0006] The device for forming plastic material containers from plastic material preforms according to the utility model has a conveying device which conveys the plastic material preforms to be formed along a predefined conveying path. The conveying device has a rotatable conveying carrier on which a plurality of forming stations are arranged, wherein the forming stations each have a blow molding device in which the plastic material preform can be formed by applying a flowable and in particular gaseous medium to the plastic material container, and the forming stations each have an application device in order to apply the flowable and in particular gaseous medium to the plastic material preform.

[0007] In addition, the device has a clean room in which the plastic material preforms are expanded and / or can be expanded into the plastic material containers.

[0008] According to the utility model, the device has an ejection device for ejecting a plastic material preform or a plastic material container from the conveying path, wherein the ejection device is at least partially and particularly preferably completely integrated into the clean room and / or the ejection device is integrated into at least one wall delimiting the clean room.

[0009] In this case, integration is understood to mean that at least one element of the ejection device is located in particular within or at the boundary of the clean room and / or the ejection device also delimits the clean room.

[0010] The utility model also relates to a method for forming a plastic material preform into a plastic material container, wherein a conveying device conveys the plastic material preform to be formed along a predefined conveying path, wherein the conveying device has a rotatable conveying carrier on which a plurality of forming stations are arranged, wherein the forming stations each have a blow molding device in which the plastic material preform can be formed by applying a flowable medium to the plastic material container, and the forming stations each have an application device for applying the flowable medium to the plastic material preform.

[0011] Furthermore, the device has a clean room in which the plastic material preform is expanded and / or expandable into the plastic material container. Furthermore, the device has a feed device for supplying the plastic material preform to be formed to the conveying device and a discharge device for discharging the formed container from the conveying device.

[0012] According to the utility model, the device has an ejection device for ejecting a plastic material preform or a plastic material container from the conveying path, wherein the ejection device is at least partially and particularly preferably completely integrated into the clean room and / or the ejection device is integrated into at least one wall delimiting the clean room.

[0013] Therefore, preferably, the aforementioned region between the discharge device and the feed device also comprises a corresponding transfer region, i.e. in particular a region in which the containers manufactured in the machining operation are transferred from the conveying carrier and / or the forming stations to the region of the discharge device and / or in which the plastic material preforms are transferred from the feed device to the conveying carrier and / or the forming stations during the machining operation.

[0014] The device is preferably configured in such a way that the ejection device is arranged in a region in which the plastic material containers manufactured in the machining operation are transferred from the conveying carrier and / or the forming stations to the discharge device.

[0015] It should be noted that the two embodiments described here can also be combined with one another, i.e. the ejection device is both integrated in the clean room and arranged between the discharge device and the feeding device.

[0016] The arrangement between the discharge device of the feeding device is understood to mean in particular that the ejection device is arranged along the conveying path between the discharge device and the feeding device. In particular, this is a region in which already (suitably) manufactured containers have been discharged or are being discharged in the course of the machining operation, but no new containers or plastic material preforms are introduced into the blow molding device.

[0017] Particularly preferably, the angle range of the rotational movement of the conveying carrier is greater than 5°, preferably greater than 10°, more preferably slightly greater than 20°. Preferably, this is an angle range of less than 100°, preferably less than 90°, preferably less than 80°, preferably less than 70° and preferably less than 60°.

[0018] The ejection device preferably forms the clean room boundary. Preferably, the ejection device also forms or has an ejection device by means of which the plastic material preforms and / or the plastic material containers are conveyed through the clean room boundary.

[0019] The arrangement of the ejection device within the clean room boundary and / or the arrangement within the clean room can ensure that the sterile machining operation of the apparatus is not disturbed by the operation of the ejection device.

[0020] In a preferred embodiment, the apparatus has at least one movable or rotatable or rotatable part (in particular the aforementioned conveying device or conveying carrier) and a stationary or fixed part. The ejection device is preferably arranged in a fixed manner and / or in the fixed part of the apparatus.

[0021] The ejection device is preferably suitable for and intended for discarding containers, in particular plastic material preforms and blow-molded containers in the course of the operating operation. In particular, the ejection device is suitable for and intended for determining defective plastic material preforms or plastic material containers.

[0022] In a further preferred embodiment, the clean room has an annular and / or ring-like shape. Particularly preferably, at least one wall delimiting the clean room is provided. Particularly preferably, at least two walls are provided, wherein one wall and in particular the wall delimiting the clean room is movable relative to the other wall delimiting the clean room.

[0023] In the case of a further advantageous embodiment, the apparatus has a sealing device in order to seal off the clean room from the non-sterile environment, and preferably the sealing device has at least one circumferential channel which can be filled with a liquid. In this preferred embodiment, a so-called water lock is proposed in order to seal off the clean room from the non-sterile environment.

[0024] It is particularly preferred that the sealing device has a peripheral wall which projects into the peripheral channel, wherein the wall is preferably configured to be rotatable. It is particularly preferred that the rotational movement of the wall is combined with the rotational movement of the transport carrier. The peripheral wall preferably forms a clean room boundary of the clean room.

[0025] In a further preferred embodiment, the shaping stations each have a stretching device for stretching the plastic material preform in the longitudinal direction of the plastic material preform, and these stretching devices preferably each have a stretching rod which is movable in the longitudinal direction of the plastic material preform, which stretching rod can be introduced into the plastic material preform.

[0026] In the case of a further advantageous embodiment, the ejection device is suitable for and intended for ejecting the plastic material preform or the plastic material container from the clean room. In this case, it is preferably possible for the container or the plastic material preform to be removed first from the transport path in the clean room and thus, for example, to be parked in a specific area of the clean room and then to be ejected from the clean room and / or through the sterile room boundary by the ejection device.

[0027] In a further preferred embodiment, the apparatus has a filter apparatus and in particular air filters which filter the air which reaches the plastic material preform. These are preferably so-called HEPA filters.

[0028] It is particularly preferred that the infeed apparatus and the outfeed apparatus each have a transport star or a transport star wheel in order to supply the plastic material preforms or to discharge the plastic material containers. In this case, a further ejection device can be provided via which the plastic material preforms are fed to the clean room and / or to the transport carrier, and / or an ejection device is provided via which the (appropriately shaped) plastic material containers are removed from the clean room and / or from the transport carrier or from the individual shaping stations (during normal operation).

[0029] However, the infeed device preferably also transports the plastic material preforms in the clean room and / or under clean room conditions. It is particularly preferred that the containers are further transported within the clean room and, in particular, that the outfeed device or components thereof are also located within the clean room.

[0030] It is particularly preferred that the ejection device allows ejection during the manufacture, in particular without having to re-sterilize the apparatus after the ejection.

[0031] It is particularly preferred that the apparatus allows at least two independent operating modes, or can be operated in at least two independent operating modes, namely on the one hand a processing operation in which the plastic material preforms are formed into plastic material containers, and on the other hand a sterilization operation in which the apparatus is sterilized.

[0032] It is particularly preferred that the ejection device is adapted and determined to eject both the plastic material preform and the plastic material container from the clean room as well as intermediate products generated during the molding process.

[0033] As mentioned above, the apparatus particularly preferably has a feed device for supplying the plastic material preform to be molded to the conveying device as well as a discharge device for discharging the molded container from the conveying device, and the ejection device is preferably arranged between the discharge device and the feed device. The ejection device can also be geometrically arranged between the discharge device and the feed device, or components of the ejection device can be geometrically arranged between the discharge device and the feed device.

[0034] The arrangement of the ejection device in this angular range also offers the advantage that in this area the blow molds are usually open in the processing mode, as they have just been removed and no new plastic material preform has been introduced. This area is therefore particularly suitable for removing the plastic material preform and / or the plastic material container from the conveying path.

[0035] In the case of a further advantageous embodiment, the ejection device is arranged below the conveying path of the plastic material preform. In this way, a simple ejection process is possible, as the effect of gravity can be used to convey the plastic material preform or the plastic material container to the ejection device. Thus, in order to reach the ejection device, the container can fall out or drop from the conveying path.

[0036] The ejection device preferably has an opening which sweeps over an angular range of at least 5°, preferably at least 10°, preferably at least 12°, preferably at least 15°, preferably at least 20°. It is particularly preferred that the size of this opening provided or achievable by the ejection device is set such that the plastic material preform as well as the plastic material container can fall through the opening.

[0037] The ejection device is preferably configured in such a way that the clean room does not have to be disinfected again once the plastic material preform or the plastic material container has been ejected.

[0038] The ejection device preferably has a closure device and in particular at least one closure lid which seals the aforementioned opening in the processing operation of the system. Preferably, the closure lid can be opened outwardly and / or downwardly with respect to the clean room.

[0039] In a preferred embodiment, the apparatus has a suction device for suctioning the flowable medium from the clean room, wherein the suction device is in particular arranged in the area of the ejection device. It is particularly preferred that the suction device is also arranged between the outlets or between the discharge device and the inlet, respectively, via which the plastic material preform is guided to the apparatus.

[0040] It is particularly preferred that the suction device is located between the clean room and a receiving device which will be described in detail below and serves to receive the ejected plastic material preform or plastic material container. It is particularly preferred that the clean room boundary is also located in this region, since an overpressure is preferably present in the region above the suction force, i.e. in the clean room. The suction force preferably prevents bacteria or impurities from entering the clean room.

[0041] In a preferred embodiment, the suction device is arranged below the clean room, i.e. closer to the earth's core. The clean room boundary is preferably arranged above the suction device.

[0042] As mentioned above, the apparatus particularly preferably has a receiving space for receiving the ejected plastic material preform or plastic material container or intermediate product. It is particularly preferred that the receiving space is arranged outside the clean room. It is particularly preferred that the receiving space is located below the clean room and in particular below the ejection device.

[0043] It is particularly preferred that the ejection device can establish a connection between the clean room and the receiving space. It is particularly preferred that the receiving space can be completely enclosed. However, it is particularly preferred that the receiving space also has a door or the like, in particular in order to be able to finally remove the ejected container or plastic material preform from the clean room.

[0044] In a further preferred embodiment, the receiving space can be connected to the clean room and / or the ejection device via an interface.

[0045] The suction device described above preferably has a pump device in order to actively allow the suction of gaseous media from the clean room.

[0046] It is particularly preferred that the suction device has at least one tube which is arranged at least partially inside the clean room. The tube is preferably vertically oriented. It is particularly preferred that at least two such tubes are provided. These can in particular be arranged laterally next to the ejection device. The tubes are particularly preferably terminated and / or started in the clean room. It is particularly preferred that the suction device is arranged at least partially below the clean room. It is particularly preferred that the clean room boundary is thus located above this suction device.

[0047] It is particularly preferred that the suction device is configured such that the flowable medium in the clean room flows in the direction of the ejection device. In this way, a flow is particularly preferably generated vertically downwards. In the processing mode, the clean room is particularly preferably exposed to an overpressure relative to the surroundings. In this way, it can be made impossible for gaseous media to enter the clean room.

[0048] Preferably, no suction is required from the lower part of the apparatus, in particular from the area below the ejection gate, since this area is not part of the sterile area. Preferably, the ejection device has an ejection gate, which, however, is particularly preferably openable only when the further closure device is folded up or sealed, as described in more detail below.

[0049] However, in this way, these further baffles do not form the clean room boundary, but are used only to maintain an overpressure in the clean room when the door of the receiving space is open. In this case, the clean room boundary is preferably just above the further sealing device (as explained in more detail below), since an overpressure exists in this upper area relative to the lower area, for example the receiving space for receiving the ejected containers.

[0050] This ensures that no bacteria enter the clean room. As mentioned above, a distinction can be made between a sterilization mode and a production mode. In the sterilization mode, in which no containers are produced, the interior of the clean room is sterilized. For example, H2O2 can be introduced. In the production mode, in which containers are produced, preferably no hydrogen peroxide or another sterilizing agent is introduced into the clean room.

[0051] The blowing of the containers is preferably carried out with filtered air, in particular with HEPA filtered air. In the sterilization mode, the ejection gate cannot be opened, since otherwise hydrogen peroxide would reach the outside. The door can be opened only in the production mode, since no hydrogen peroxide or other sterilizing agent can come out of the clean room during the production process. However, in this case, it is preferably ensured that the clean room is not contaminated. This is preferably achieved by an overpressure prevailing in the upper area of the clean room or generally in the clean room.

[0052] As mentioned above, a receiving space for receiving the ejected plastic material preforms or plastic material containers can be particularly preferably connected to the ejection device. As mentioned above, for this purpose, for example, a further sealing device, for example a door or the like, can be provided.

[0053] In the normal operation of the apparatus, the receiving space is preferably separated from the clean room. The door can be opened temporarily in order to transfer the plastic material preforms or containers that have been ejected from the clean room and / or the conveying path into the receiving space. In this case, the ejected synthetic scrap preforms or plastic material containers can remain in the clean room for a certain time, for example in the region of the ejection device, after they have been ejected from the conveying path, and are then ejected from the clean room and preferably into the receiving space.

[0054] In a preferred embodiment, the apparatus has a state detection device which is suitable for detecting defective molding processes and / or defective molded containers. Such containers can subsequently be separated off. Particularly preferably, such a state detection device can be assigned to each molding station.

[0055] Thus, for example, during the expansion process, it can be determined that a pressure drop occurs, etc., which indicates a bursting of the container. In addition, a visual inspection of the container or the plastic material preform is also possible, whereby the ejection process can be initiated.

[0056] For example, it can be determined that a certain plastic material preform already has a defect at the beginning of the blow molding process. In this case, the forming of the plastic material preform can be omitted, for example, and the plastic material preform can be conveyed. The plastic material preform can then be ejected.

[0057] It is particularly preferred that the apparatus also has a distribution device which distributes a specific forming station to a specific plastic material preform or plastic material container, which forming station can cause a fault. In this way, it can be determined that a specific forming station is producing defective plastic material containers, and this forming station can be appropriately closed for a certain period of time.

[0058] In the case of a further advantageous embodiment, the apparatus has a control device which at least partially allows the plastic material preform or the plastic material container to be conveyed by the conveying device between the discharge device and the feed device and / or in the open state of the blow molding device.

[0059] As described above, in the normal processing mode, no containers are conveyed between the discharge device and the feed device, since the containers already manufactured have been distributed in this area and no new plastic material preforms are supplied. This means that there are generally no complete containers in this area. However, when a fault is detected, the control device can cause the respective incomplete or defective container to be conveyed to this area in order to eject it.

[0060] It is particularly preferred that the conveying device has a holding device and in particular a controlled holding device for holding the plastic material preform or the container. The control device can then cause the holding device to eject the container in the area between the discharge device and the feed device.

[0061] It is particularly preferred that the apparatus has a guide device in order to open and close the blow molding device. It is particularly preferred that the plastic material preform or the container falls when the blow molding device is open. However, in addition, it is also possible to eject directly on the feed device or the discharge device, for example by means of a so-called pusher.

[0062] In a preferred embodiment, the ejection device is integrated into the clean room as described above and / or the ejection device is integrated into at least one wall delimiting the clean room.

[0063] In a further advantageous embodiment, the ejection device allows the container to be ejected from the conveying path (but not necessarily from the clean room) during the ongoing manufacturing process.

[0064] The utility model also relates to a method for forming a plastic material preform into a plastic material container, wherein a conveying device conveys the plastic material preform to be formed along a predefined conveying path, in particular during a processing operation, and wherein the conveying device has a rotatable conveying carrier on which a plurality of forming stations are arranged, wherein the forming stations each have a blow molding device in which the plastic material preform is formed by applying a flowable medium to the plastic material container, and wherein the forming stations each have an application device for applying the flowable medium, in particular a gaseous medium, to the plastic material preform, wherein the apparatus also comprises a clean room in which the plastic material preform is expanded into the plastic material container.

[0065] According to the utility model, the plastic material preform or the plastic material container is ejected from the apparatus, in particular from the clean room, by means of an ejection device, wherein the ejection device is integrated into the clean room and / or the ejection device is already integrated into at least one wall delimiting the clean room.

[0066] In a further method for forming a plastic material preform into a plastic material container according to the utility model, a conveying device conveys the plastic material preform to be formed along a predefined conveying path, wherein the conveying device has a rotatable conveying carrier on which a plurality of forming stations are arranged, and wherein the forming stations each have a blow molding device in which the plastic material preform is formed by applying a flowable medium to the plastic material container, and the forming stations each have an application device for applying the flowable medium to the plastic material preform, wherein the apparatus has a clean room in which the plastic material preform is expanded with the flowable medium, wherein the plastic material preforms are fed to the conveying device by means of a feeding device, and the formed plastic material preforms are discharged from the conveying device by means of a discharge device.

[0067] According to the utility model, the plastic material preform or the plastic material container is ejected from the apparatus, in particular from the clean room, by means of an ejection device, wherein the ejection occurs in the region of the discharge device and / or in the conveying direction of the plastic material preforms between the discharge device and the feeding device.

[0068] The ejection between the discharge device and the feeding device is also understood to mean ejection directly at the discharge device or directly at the feeding device, i.e. in those portions in which the containers are transferred from the forming stations to the discharge device or the plastic material preforms are transferred from the feeding device to the forming stations.

[0069] Preferably, the ejection occurs in the region in which the blow molding device has been opened or is opened during the processing operation.

[0070] It is particularly preferred that during the operation the plastic material preform is ejected from the conveying path.

[0071] In a further preferred method the plastic material preform or the plastic material container is ejected from the clean room. BRIEF DESCRIPTION OF DRAWINGS

[0072] Further advantages and embodiments can be seen in the drawings, in which:

[0073] Figure 1 A schematic view of a device according to the utility model is shown;

[0074] Figure 2 A detailed view of a device according to the utility model is shown;

[0075] Figure 3 A schematic view of a suction from a clean room is shown;

[0076] Figure 4 Another schematic view of a suction from a clean room is shown. DETAILED DESCRIPTION

[0077] Figure 1 A device 1 for forming plastic material preforms 10 into plastic material containers 15 is shown. The device has a rotatable carrier 22 on which a plurality of forming stations 4 are arranged. These individual forming stations each have a blow mold or blow device 82 which forms a cavity for inflating the plastic material preform inside it.

[0078] Reference 84 denotes an application device for inflating the plastic material preform 10. This can be, for example, a blow nozzle which can be applied to the mouth of the plastic material preform to inflate the latter. Reference 90 denotes a valve device, such as a valve block, which preferably has a plurality of valves which control the application of different pressure levels to the plastic material preform.

[0079] In a preferred method, a pre-blowing pressure Pi is first applied to the plastic material preform, then an intermediate blow pressure Pi which is higher than the pre-blowing pressure, and finally a final blow pressure P2 which is higher than the intermediate blow pressure Pi. After the plastic material container has been inflated, the pressure or compressed air is preferably returned from the container to the respective pressure container.

[0080] Reference 88 denotes a stretch rod for expanding the plastic material preform in the longitudinal direction of the plastic material preform. Preferably, all forming stations have such a blow mold 82 and a stretch rod 88. The number of these forming stations is preferably between 2 and 100, preferably between 4 and 60, preferably between 6 and 40.

[0081] The plastic material preforms 10 are fed to the apparatus via a first conveying device 62, such as in particular, but not exclusively, a conveying star wheel. The plastic material containers 15 are conveyed via a second conveying device 64. The conveying device 62 is thus the aforementioned feed device, and the conveying device 64 is the aforementioned discharge device.

[0082] The reference 7 denotes a pressure supply, such as a compressor or a compressed air connection. Compressed air is delivered via a connecting line 72 to a rotary distributor 74, and from there via a further line 76 to the reservoir 2a, which in this case is preferably an annular channel.

[0083] In addition to the annular channel 2a shown, further annular channels are preferably provided, which, however, are concealed, for example, beneath the annular channel 2a shown in Fig. Figure 1 The reference 98 denotes a connecting line which delivers pressurized air to the molding stations 4 or to their valve blocks 90. Preferably, each of the annular channels is connected via a corresponding connecting line to all of the molding stations.

[0084] The reference 8 schematically denotes a clean room, which here is preferably annular and surrounds the conveying path of the plastic material preforms 10. Preferably, the conveying carriers, which can be rotated relative to their (geometric) axis of rotation, are arranged outside the clean room 8. Preferably, the clean room is sealed from the non-sterile environment by a sealing device, which preferably has at least two buffer tanks.

[0085] The reference 60 generally schematically denotes an ejection device. As described above, the ejection device is arranged between the discharge device 64 and the feed device 62.

[0086] Figure 2 A partial view of the apparatus according to the application is shown. Here, the clean room 8 can be seen, in which the plastic material preforms are molded into plastic material containers. The reference 60 generally denotes an ejection device for ejecting the containers (not shown) from the clean room.

[0087] In this case, the ejection device has a shutter device 92, which here is shown in the open state, i.e. in a state in which the plastic material preforms or the plastic material containers can be guided out of the clean room into the receiving space 80, under the action of gravity.

[0088] In the closed state of the shutter 92, the clean room 8 is delimited from the receiving space 80.

[0089] The reference 94 denotes a closure device and in particular a door, with which the receiving space 80 can be opened in order to finally remove the ejected plastic material preforms or plastic material containers.

[0090] It is particularly preferred that a locking mechanism is provided which prevents the door 94 from being opened when the baffle of the ejection device 92 is in the Figure 2 position shown, i.e. in the open position. In this way, the door 94 can be prevented from being opened as long as there is a flow connection between the clean room 8 and the receiving space 80, whereby the clean room can be contaminated.

[0091] Generally, a clean room refers to a room with a higher purity than a sterile environment. Specifically, there are significantly fewer bacteria or impurities in the clean room than outside the clean room.

[0092] The reference 52 denotes a further ejection device via which plastic material preforms can be supplied here to the clean room.

[0093] The reference 70 denotes a suction device for suctioning gaseous media. This suctioning takes place via two tubes, as indicated by the arrows P1.

[0094] It is not necessary to suck off the lower portion (below the baffle 92), since this area is not part of the sterile zone or the clean room. As already shown, the ejection gate 94 can only be opened when the baffle 92 is folded upwards. However, the baffle 92 does not form a mechanical clean room boundary, but is preferably only used to maintain an overpressure in the clean room when the door 94 is opened. Since there is an overpressure in the upper area relative to the lower area, the clean room boundary extends just above the baffle 92. This ensures that no bacteria reach the clean room 8.

[0095] Figure 3 and Figure 4 The function of this suctioning is shown.

[0096] In the case shown in Figure 3 , the baffle 92 is open. The suctioning takes place here along the arrows P1. Thus, the reference G denotes the clean room boundary, which, however, extends above the baffle 92.

[0097] Figure 4 The case is shown in which the baffle 92 is closed. Here, the clean room boundary also extends above the closure cover 92. In this case, the door 94 can also be opened, in particular in order to remove the container from the receiving space.

[0098] The applicant reserves the right to claim all features disclosed in the application document as essential to the invention, as far as they are novel individually or in combination with respect to the prior art. It is also pointed out that features which are per se advantageous are also described in the individual figures. The person skilled in the art will immediately recognize that the specific features described in the figures can be advantageous even without the further features from the figure. Furthermore, the person skilled in the art will recognize that advantages can also result from a combination of several features shown in a single figure or in different figures.

Claims

1. An apparatus (1) for forming plastic material preforms (10) into plastic material containers (15), the apparatus having a conveying device (2) which conveys the plastic material preforms to be formed along a predefined conveying path, wherein the conveying device (2) has a rotatable conveying carrier (22) on which a plurality of forming stations (4) are arranged, wherein the forming stations (4) each have a blow molding device within which the plastic material preforms (10) can be formed by applying a flowable medium into the plastic material containers (15), and the forming stations (4) each have an application device (40) in order to apply the flowable medium to the plastic material preforms (10), and wherein the apparatus has a clean room (8) within which the plastic material preforms (10) are expanded into the plastic material containers, characterized in that the apparatus (1) has an ejection device (60) for ejecting a plastic material preform or a plastic material container from the conveying path and in particular from the clean room, and in that the ejection device (60) is integrated in the clean room and / or the ejection device (60) is integrated in at least one wall which delimits the clean room.

2. The apparatus (1) according to claim 1, characterized in that the apparatus (1) has a sealing device (50) in order to seal off the clean room (8) from an unsterile environment.

3. The apparatus (1) according to claim 2, characterized in that the sealing device (50) has at least one circumferential channel (52) which can be filled with a liquid.

4. The apparatus (1) according to claim 1, characterized in that the ejection device (60) is suitable for and intended for ejecting a plastic material preform or a plastic material container from the clean room.

5. The apparatus (1) according to claim 1, characterized in that the apparatus has a feed device (62) for feeding plastic material preforms (10) to be formed to the conveying device and a discharge device (64) for discharging formed containers (15) from the conveying device.

6. The apparatus (1) according to claim 5, characterized in that the ejection device (60) is arranged in the region of the discharge device and / or between the discharge device (62) and the feed device (64).

7. The apparatus (1) according to claim 1, characterized in that the ejection device (60) is arranged below the conveying path of the plastic material preforms or the plastic material containers (15).

8. The apparatus (1) according to claim 1, characterized in that the apparatus (1) has a suction device (70) for suctioning flowable medium from the clean room, wherein the suction device (70) is in particular arranged in the region of the ejection device.

9. The apparatus (1) according to claim 1, characterized in that The device (1) has a receiving space (80) for receiving the ejected plastic material preform or plastic material container.

10. Device (1) according to claim 9, characterized in that the receiving space can be connected to the ejection device by means of an interface.

11. Device according to claim 1, characterized in that the device has a state detection device which is suitable for detecting a defective forming process and / or an incorrectly formed container.

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