Abstract:
An apparatus for shaping plastics material pre-form into plastics material containers, comprises a blow mold device which forms a cavity inside. The plastics material pre-forms are expanded to form the plastics material containers. The blow mold device has a first blow mold part, a second blow mold part, and a base part. A blow mold carrier device holds the blow mold device. The blow mold carrier device has a first carrier part for holding the first blow mold part and a second carrier part for holding the second blow mold part. A third carrier part holds the base part. A centering mechanism centers the base part. The centering mechanism has a first engagement element which is which is movable with respect to a second engagement element. One of the first and second engagement elements is arranged on the third carrier part.
Abstract:
The invention relates to a shaping apparatus (1) for the shaping of plastics material pre-forms (10) into plastics material containers (10A) with a plurality of blow moulding stations (8) and with at least one control device (55; 55A; 55B; 55C) for the control of blow molding pressures and/or volume flows at the blow molding stations (8), in which the at least one control device (55; 55A; 55B; 55C) comprises at least one control valve (56) with a control piston part (58) which is guided in a cylinder part (57) and by means of which a cross-section (59) of a blow molding air duct (60) is capable of being closed, wherein the control device (55; 55A; 55B; 55C) has a drive unit (61) operating in an electromagnetic manner in order to effect a change in position of the control piston part (58) inside the cylinder part (57) and thus also to control the blow molding pressures and/or volume flows at the blow molding stations (8).
Abstract:
Apparatus for forming plastic preforms into plastic containers, with at least one blowing station arranged on a moving carrier, wherein the blowing station has a blow mould carrier for holding a blow mould and the blow mould carrier has a first blow mould carrier part and a second blow mould carrier part, wherein the second blow mould carrier part can be moved away from the first blow mould carrier part in order to open the blow mould for removal of a plastic container and/or for insertion of a preform, and wherein the second blow mould carrier part can be moved towards the first blow mould carrier part in order to transfer the blow mould into a closed state for forming the preform, wherein that the second blow mould carrier part has a lower density and/or strength than the first blow mould carrier part.
Abstract:
A stretch-blow molding machine having at least one blow molding station, in which a split blow mold, an adjustable blow nozzle with a valve section, a stretching rod with a stretching rod drive system, and an electronic control unit are provided, the electronic control unit arranged in the blow molding station is equipped with hardware and software for selectively operating the blow molding station with a combination of a cam drive and a pneumatic drive, or a combination of an electric servo drive and a pneumatic drive, or only an electric servo drive in the stretching rod drive system. The movement of the stretching rod is initiated in the stretch-blow molding machine in the production process of a container by means of an electric servomotor with the beginning of or during the locking phase of the blow mold and before the blow nozzle is placed, and the stretching rod is already displaced to a position in which the stretching rod is either very closely approached to the preform bottom or contacts the preform bottom, or has even already pre-stretched the preform, until the blow nozzle is placed.
Abstract:
An apparatus for shaping plastics material pre-form into plastics material containers, comprises a blow mould device which forms a cavity inside. The plastics material pre-forms are expanded to form the plastics material containers. The blow mould device has a first blow mould part, a second blow mould part, and a base part. A blow mould carrier device holds the blow mould device. The blow mould carrier device has a first carrier part for holding the first blow mould part and a second carrier part for holding the second blow mould part. A third carrier part holds the base part. A centering mechanism centers the base part. The centering mechanism has a first engagement element which is which is movable with respect to a second engagement element. One of the first and second engagement elements is arranged on the third carrier part.
Abstract:
Apparatus for shaping plastics material pre-forms into plastics material containers includes a conveying device which conveys the pre-forms along a pre-set path. The conveying device has a movable station carrier arranged at least indirectly on a stationary base carrier on which are arranged a plurality of shaping stations which have in each case blow moulding devices which have cavities, inside which the pre-forms are shaped. The apparatus has a changing device for removing the blow moulding devices from the blow mould carriers and/or for arranging blow moulding devices on the blow mould carriers. The changing device has a first control device for controlling a removing and/or an arranging movement of the blow moulding devices on the blow mould carriers, and a second control device for controlling a blow moulding procedure, wherein the first control device and the second control device preferably co-operate at least for a time.
Abstract:
The invention relates to a shaping apparatus (1) for the shaping of plastics material pre-forms (10) into plastics material containers (10A) with a plurality of blow moulding stations (8) and with at least one control device (55; 55A; 55B; 55C) for the control of blow moulding pressures and/or volume flows at the blow moulding stations (8), in which the at least one control device (55; 55A; 55B; 55C) comprises at least one control valve (56) with a control piston part (58) which is guided in a cylinder part (57) and by means of which a cross-section (59) of a blow moulding air duct (60) is capable of being closed, wherein the control device (55; 55A; 55B; 55C) has a drive unit (61) operating in an electromagnetic manner in order to effect a change in position of the control piston part (58) inside the cylinder part (57) and thus also to control the blow moulding pressures and/or volume flows at the blow moulding stations (8).
Abstract:
Apparatus for forming plastic preforms into plastic containers, with at least one blowing station arranged on a moving carrier, wherein the blowing station has a blow mould carrier for holding a blow mould and the blow mould carrier has a first blow mould carrier part and a second blow mould carrier part, wherein the second blow mould carrier part can be moved away from the first blow mould carrier part in order to open the blow mould for removal of a plastic container and/or for insertion of a preform, and wherein the second blow mould carrier part can be moved towards the first blow mould carrier part in order to transfer the blow mould into a closed state for forming the preform, wherein that the second blow mould carrier part has a lower density and/or strength than the first blow mould carrier part.
Abstract:
An apparatus (1) for the shaping of plastics material pre-forms (10) into plastics material containers (20) with a movable carrier (2) on which is arranged at least one shaping station (4), wherein the shaping station has a blow moulding device (6), and wherein the shaping station additionally has a stressing device (12) which acts upon the plastics material pre-forms with a flowable medium for their expansion, wherein the shaping station additionally has a rod-like body (14) which is capable of being inserted into the plastics material pre-forms in order to stretch them in the longitudinal direction (L) thereof, wherein the shaping station has a drive device (24) which moves the rod-like body (14) with respect to the plastics material pre-form. According to the invention a coupling device (30) is provided which couples a movement of the rod-like body (14) with respect to the plastics material pre-form to a movement of the stressing device (12) with respect to the plastics material pre-form (10)—in particular in a mechanical manner—at least for a time, and the apparatus has an influencing device (40) which influences a supply movement of the stressing device (12) towards the plastics material pre-form at least locally.
Abstract:
An apparatus (1) for the conveying of plastics material pre-forms (10) along a pre-set conveying path (P) with a first guide rail (2) and a second guide rail (4) for guiding the plastics material pre-forms (10), wherein the plastics material pre-forms (10) are guided between the guide rails (2, 4) and the guide rails (2, 4) have in each case first support faces (12, 14) which extend along the conveying path (P) and which support the plastics material pre-forms (10) during the conveying thereof. The apparatus (1) has a stressing device (42, 44) for acting upon the plastics material pre-forms (10) with a gaseous medium. The plastics material pre-forms are conveyed along their conveying path by being acted upon with the gaseous medium, and a geometrical position of the guide rails is capable of being altered with respect to each other.