Abstract:
The present invention relates to a piston assembly for pumping a liquid, in particular in a bottle filling system. The object of the invention is to propose a piston assembly for pumping a liquid, which can be cleaned and/or disinfected without dismantling of the piston or performing any other external interventions into the assembly. The object is achieved by a piston assembly for pumping a liquid, which comprises a piston 1 that travels within a cylinder 2 and has a working path A between a first inversion point U1 and a second inversion point U2, with the piston 1 forming a tight seal with respect to the cylinder 2 in the region of the working path. The assembly is characterized in that beyond one of the two inversion points U1, U2, outside of the working path A, the diameter of the cylinder 2 is enlarged in one section 8 such that the sealing closure is eliminated there, and the piston 1 can be moved into this area for a cleaning and/or disinfection process.
Abstract:
A synchronous running safeguard for transfer stations or devices for handling containers, in particular for handling bottle-like containers made of glass or plastic, having a first and a second rotary element, which each have holding elements for the containers and each have a motor drive. The rotary elements are disposed in relation to one another such that the containers can be transferred in a transfer area from one of the first holding elements to one of the second holding elements. The rotary elements, each rotationally connected, have a control element having engagement elements, and the control elements are in meshing engagement with one another. The control elements are disposed in such a way that, during operation the control elements are interengaged without contact during the rotary movement of the rotary elements and that, in the event of a fault, the control elements are interengaged with contact.
Abstract:
A method and a device for producing blow-molded containers, which are sterile at least in some areas, in a blow-molding machine. A preform made of a thermoplastic material is first guided through a heating device by a supporting device, heated in the heating device, and then supplied with a pressurized fluid, and the preform is supplied with a sterilizing radiation at least in some areas. At least one radiation source for the sterilizing radiation is arranged in the heating device in a stationary manner at a distance to the preform, and the radiation direction of at least one of the at least one radiation sources is oriented towards the opening region of the preform and/or towards the supporting device.
Abstract:
The invention relates to a method and to a device for producing containers (11) filled with a liquid filling material (21, 21.1) from preforms (2) made of a thermoplastic material, wherein the preform (2) is thermally conditioned before its transformation, and subsequently, during a forming and filling phase, in a mold (37) of a forming and filling station (10), it is transformed into the container (11) by means of the filling material (21, 21.1) as pressure medium, wherein the filling material (21, 21.1) is introduced from a forming and filling head (28) into the preform, wherein the forming and filling head (28) is moved from a rest position, which enables a supplying and insertion of a preform into the mold (37) of the forming and filling station (10), into a sealing position with respect the preform (2), wherein, during the transformation into the container (11), the preform (2) is preferably guided at least temporarily by a stretching rod (17) and stretched in axial direction, wherein, after the completion of the forming and filling phase, the container (11) is closed with a closure cap (15) before the container (11) is removed from the forming and filling station (10), wherein the closure cap (15) is supplied from a cap supplying device (50) into the area of the forming and filling station (10), and characterized in that, after the completion of the forming and filling phase, the forming and filling head (28) is moved from the sealing position into a position spaced apart from the container (11), then the closure cap (15) is supplied into the area between container (11) and forming and filling head (28), and then the closure cap (15) is pressed by the forming and filling head (28) in a longitudinal direction (32) of the container onto the container (11).
Abstract:
The invention relates to a method for producing a container (2) filled with a liquid product in which a preform (1) consisting of a thermoplastic material is stretched after a thermal conditioning with a stretching rod (11) and is shaped in an inflation process to the container (2), wherein the inflation process comprises a pre-blowing phase in which a fluid of a first pressure level is used for the inflation, and comprises a main blowing phase in which a fluid of a second pressure level that is greater than the first pressure level is used for the inflation and is characterized in that the fluid used in the pre-blowing phase is a blowing gas and that the fluid used in the main blowing phase is the product. Furthermore, the invention relates to a device for carrying out a method according to the invention.
Abstract:
A method and a device for producing blow-molded containers, which are sterile at least in some areas, in a blow-molding machine. A preform made of a thermoplastic material is first heated, then stretched by a stretching rod in a blowing station, and then supplied with a pressurized fluid via a blow nozzle, wherein a sterilization device is arranged in the blowing station. The sterilization device has at least one radiation source which emits a sterilizing radiation onto the stretching rod and/or onto the blow nozzle.
Abstract:
A device for blow molding containers. Preheated preforms made of a thermoplastic material are transferred within a blow molding machine to a blowing device. In the region of the blowing device, the preforms are shaped into containers by the blow molding by a blowing pressure. In the region of the device for blow molding containers, a blowing nozzle seal is arranged, which is brought against a support ring of the preform. The blowing nozzle seal is formed by a sealing element and a support sleeve. The blowing nozzle seal is first mechanically preloaded in relation to the support ring after contact with the support ring and then is further loaded pneumatically. An accommodating space that surrounds the mouth section of the preform is thereby provided, which accommodating space has substantially the same pressure as the interior of the preform in order to avoid deformation of the mouth section.
Abstract:
The method relates to a method for filling a container (13, 32) with carbonized liquid filling material and for closing the filled container, in which the filling material is introduced in a filling station (10, 30) by a filling head (11, 33) at defined filling pressure into the container (13, 32), wherein the filling head (11, 33) is firstly moved from an idle position, which permits supplying and inserting a container (13, 32) into the filling station (10, 30), into a working position toward the inserted container, in which an end region (16) of the filling head seals off the opening (14) of the container, the container (13, 32) is then filled, the filling head (11, 33) is moved after completion of the filling phase back out of the working position into an idle position spaced apart from the container (13, 32) and the container (13, 32) is then closed in the filling station (10, 30) using a cap (20) at least enough that filling material can no longer escape, and the container (13, 32) is then removed from the filling station (11, 33), characterized in that before the movement of the filling head (11, 33) from the working position into the idle position spaced apart from the container (13), an overpressure lying between the ambient pressure and the filling pressure is set in a pressure chamber (15) of the filling station (10, 30) surrounding the opening (14) of the inserted container (13, 32), which overpressure is selected in such a way that possible foaming up of the filling material located in the container (13, 32) is minimized enough that filling material does not escape from the container (13, 32) when the filling head (11, 33) is raised out of the working position after the filling procedure.
Abstract:
The invention relates to a molding and filling station of a system for manufacturing filled containers from preforms (10) by means of liquid filling material (15) introduced into the preform (10) under pressure, said molding and filling station comprising a stretch rod (11) and a liquid duct (16) which can be controlled by means of a filling valve (14) and which is designed to surround the stretch rod (11) at least partially and ends in at least one outlet opening (17) which can be placed on the orifice (18) of the preform (10), the molding and filling station being characterized in that a gas barrier (20) is arranged in the liquid duct (16) between the filling valve (14) and the outlet opening (17).
Abstract:
The present invention relates to a mold for molding hollow bodies from parisons. It is the object of the invention to provide such a mold having a closing mechanism, which allows the mold to be securely held closed even under high pressure and which is in addition easy to clean. The object is achieved according to the invention by a two-part mold (1a, 1b) for molding hollow bodies, in particular containers, from parisons by way of a gaseous or liquid pressure medium introduced under pressure into the parison, in which at least a part of the mold (1a, 1b) is supported so it is rotatable about an axis of rotation (3), and therefore the two parts are transferable from an open position into a closed position, and wherein each mold part (1a, 1b) is connected to one end of a toggle lever (4a, 4b) so it is rotatable about an axis (5a, 5b) parallel to the axis of rotation (3). The two other ends of the two toggle levers are connected to one another and to an actuating mechanism (7, 8, 9) so they are rotatable about an axis (6) parallel to the axis of rotation. The mold is characterized according to the invention in that the toggle levers (4a, 4b) are located shortly before their dead center in the closed position of the mold and the actuating mechanism (7, 8, 9) exerts an elastic force on the connecting axis (6) of the toggle levers (4a, 4b) in the direction of their dead center.