摘要:
The invention discloses a method of heating a preform (50) of thermoplastic material prior to blow molding the same to form a container, with the preform (50) being held at a threaded region (58) during heating thereof. A neck portion (48) of the preform (50) close to the threaded region (58) is temporarily heated more strongly as compared to other regions. The invention further relates to a tempering device for heating such a preform (50), including at least one radiation and/or heat source acting on the preform (50) and defining several impact regions on the preform (50) with different heating intensities each. The preform (50) has associated therewith at least one reflector (52) disposed in the threaded (58) and/or neck region (48) for deflecting radiation proportions piercing the neck region (48) and for heating the neck region (48) on an inside of the preform (50).
摘要:
The invention discloses a method of heating a preform (50) of thermoplastic material prior to blow molding the same to form a container, with the preform (50) being held at a threaded region (58) during heating thereof. A neck portion (48) of the preform (50) close to the threaded region (58) is temporarily heated more strongly as compared to other regions.The invention further relates to a tempering device for heating such a preform (50), including at least one radiation and/or heat source acting on the preform (50) and defining several impact regions on the preform (50) with different heating intensities each. The preform (50) has associated therewith at least one reflector (52) disposed in the threaded (58) and/or neck region (48) for deflecting radiation proportions piercing the neck region (48) and for heating the neck region (48) on an inside of the preform (50).
摘要:
Blow-molding machine for blow-molding plastic containers with at least one blow-molding unit for stretch blow-molding preforms by means of compressed air, wherein the blow-molding unit has a force equalization means, such that at least part of the compression force which occurs is compensated for, wherein the blow-molding unit comprises a pressure piston and pressure cylinder.
摘要:
Blow-molding machine for blow-molding plastic containers with at least one blow-molding unit for stretch blow-molding preforms by means of compressed air, wherein the blow-molding unit has a force equalization means, such that at least part of the compression force which occurs is compensated for, wherein the blow-molding unit comprises a pressure piston and pressure cylinder.
摘要:
A method for the temperature control and/or regulation of a heating device (10) for preforms (46) made from a thermoplastic material, the method being intended for controlling the temperature of the preforms (46) prior to a subsequent blow molding or stretch blow molding process. The temperature control process includes at least two distinct, consecutive heating stages (12, 14), where a near uniform base temperature of the entire preform (46) is achieved in the first heating stage (12). The base temperature approximately corresponds to a maximum heating temperature (T2) for maintaining the dimensional stability of the thread section at the preform's (46) open-topped neck section. An unevenly distributed softening temperature (T3) according to a predefineable thermal profile is achieved in the second heating stage (14), with the softening temperature (T3) being required for blow molding or stretch blow molding at least the preform's (46) body section located below the thread section and/or a collar area located therebelow. The invention furthermore includes a heating device (10) for performing the method.
摘要:
A method for the temperature control and/or regulation of a heating device (10) for preforms (46) made from a thermoplastic material, the method being intended for controlling the temperature of the preforms (46) prior to a subsequent blow molding or stretch blow molding process. The temperature control process includes at least two distinct, consecutive heating stages (12, 14). At least one temperature reading of the preforms after the first heating stage is taken, and deviations of the at least one temperature reading from a specified set point temperature is determined, a first temperature reading of the at least one temperature reading being taken after the first heating stage. Radiators in the second heating stage are regulated or adjusted as a function of the first temperature reading and temperature deviations of the preforms from the specified set point temperature are compensated for prior to exit of the preforms from the heating device. The invention further includes a heating device for performing the method.
摘要:
An apparatus for heating plastics-material performs includes a conveying device which conveys the plastics-material performs along a pre-determined conveying path. A heating device is arranged along this conveying path and which heats the plastics-material performs. The apparatus has at least one first contacting element arranged downstream with respect to the heating device for acting upon a wall of the plastic-material perform with a temperature profile varying in a peripheral direction and/or longitudinal direction of the plastics-material perform. The contacting element touches with a contact face a pre-determined region— bounded in the peripheral direction and/or longitudinal direction of the plastics-material performs— of a wall of the plastics-material perform in order to act upon this region with a temperature profile different from regions not touched by the contacting element. In addition, the apparatus has an advancing device which advances the contacting element to the plastics-material perform in a pre-determined direction.
摘要:
An apparatus for heating plastics-material preforms, with a conveying device which conveys the plastics-material preforms along a pre-determined conveying path, and with a heating device which is arranged along this conveying path of the plastics-material preforms and which heats the plastics-material preforms (10). According to the invention, the apparatus has at least one first contacting element arranged downstream with respect to the heating device for acting upon a wall of the plastics-material preform with a temperature profile varying in a peripheral direction and/or longitudinal direction of the plastics-material preform, which contacting element touches with a contact face a pre-determined region—bounded in the peripheral direction and/or longitudinal direction of the plastics-material preforms—of the wall of the plastics-material preform in order to act upon this region with a temperature profile different from regions not touched by the contacting element. In addition, the apparatus has an advancing device which advances the contacting element to the plastics-material preform in a pre-determined direction.
摘要:
A process and a device for the manufacture of a hollow body, particularly of a heat-resistant hollow body, which is molded out of a heated preform of thermoplastic plastic in a contoured blow mold through the introduction of a first medium into the preform, which medium is stored in a first medium storage unit and is under a pressure (p1) (preblowing phase), and the more or less simultaneous stretching of the hollow body through a stretching rod and the introduction of a second medium in the hollow body, which medium is stored in a second medium storage unit and the pressure of which (p2) is higher than the pressure of the first medium (p1) (final blowing phase), and which is cooled by a third medium, which is medium stored in a third medium storage unit (rinsing phase), whereby the preblowing medium is under a pressure of approximately 2-20 bar, the final blowing medium is under a pressure of approximately 15-45 bar, and the cooling medium is under a pressure of approximately 30-45 bar.
摘要:
The invention relates to a method of producing beverage containers (10) with the steps: producing a plastics material container (10), wherein the plastics material container (10) is produced from a plastics material pre-form by means of a shaping device (2); conveying the container (10) to a filling device (4) filling the container (10) with a liquid and, in particular with a beverage, wherein the liquid is filled into the container (10) at a temperature which is above 50° C., wherein the container (10) is sterilized between a separating device arranged upstream of a pre-form inlet of the shaping device (2) and the filling device (4).