Non-symmetric and volume reduced preforms and containers stretch blow moulded therefrom by a continuously rotating, preform feed, stretch-blow-moulding machine dedicated to the stretch-blow-moulding of containers from non-symmetric or reduced volume injection moulded preforms; the non-symmetric or reduced volume preforms including an integral handle extending from a first junction point to a second junction point on a body of the preform; the body of the preform and the integral handle constituted from the same material.

A method for operating a device to produce a product includes capturing at least one quality data record that includes measured values of one or more quality parameters that each correspond to one property of the product. The method captures at least one associated machine data record including actual values of several adjustable machine parameters of the device, chronologically assigns the quality data record to the machine data record, and generates a first data record comprising chronologically-correlated measured values and actual values. The preceding steps are repeated at least once to generate at least one second data record. A correlation is determined between the quality parameter(s) and the machine parameter(s). The method provides a corresponding target value for at least one of the adjustable machine parameters on the basis of the control model, proceeding from a target value of the quality parameter(s).

The apparatus for manufacturing a resin container includes a heating unit configured to heat a preform using heaters and, a blow molding unit configured to blow-mold the preform that has been heated, accumulators that are connected to the blow molding unit and for storing a pressurized gas to be used for blow molding, and a connection pipe that connects the heating unit and the accumulators via an electrically driven valve, in which the electrically driven valve is closed when electric power is supplied, and is opened when electric power is not supplied to cause the gas in the accumulators to flow to the heating unit.

In a blow-molding apparatus, a cooling device and a heating device are each driven by being supplied with electricity of a predetermined voltage from a supply power source. The blow-molding apparatus comprises: a monitoring device configured to constantly monitor fluctuation of the predetermined voltage; and an output automatic control mechanism configured to, in a case where the predetermined voltage monitored by the monitoring device fluctuates beyond a normal range, automatically fluctuate an output of at least one of the heating device and the cooling device to keep the output in a certain range, thereby adjusting at least one of the preform temperature and the ambient temperature to fall within a normal temperature range.

- - - Provided is a control method for a manufacturing device for manufacturing a resin container by blow-molding a preform, the method including: acquiring a target value for the temperature inside a heating device for heating the preform to a temperature that is appropriate for blow-molding; acquiring the actual measured value of the temperature inside the heating device, the temperature having been detected by a sensor disposed inside the heating device; calculating the temperature difference between the target value and the actual measured value; and adjusting the heating performance and the cooling performance of the heating device on the basis of the temperature difference. - - -

Non-symmetric and volume reduced preforms and containers stretch blow moulded therefrom by a continuously rotating, preform feed, stretch-blow-moulding machine dedicated to the stretch-blow-moulding of containers from non-symmetric or reduced volume injection moulded preforms; the non-symmetric or reduced volume preforms including an integral handle extending from a first junction point to a second junction point on a body of the preform; the body of the preform and the integral handle constituted from the same material.

Systems and methods control the operation of a blow molder. An indication of a crystallinity of at least one container produced by the blow molder may be received along with a material distribution of the at least one container. A model may be executed, where the model relates a plurality of blow molder input parameters to the indication of crystallinity and the material distribution and where a result of the model comprises changes to at least one of the plurality of blow molder input parameters to move the material distribution towards a baseline material distribution and the crystallinity towards a baseline crystallinity. The changes to the at least one of the plurality of blow molder input parameters may be implemented.

A plastic bottle manufacturing device (50) includes a preform heating part (52) that includes a plurality of heating bodies (65), a blow-molding part (54) that molds a plastic bottle (20) by blow-molding a preform (10), and a preform temperature measuring part (53) that measures temperatures of the preform (10) at a plurality of measurement points (P) in a longitudinal direction of the preform (10). The plurality of measurement points (P) are provided in correspondence with the plurality of heating bodies (65). A control unit (70) controls an output of each heating body (65) based on an optimal temperature distribution at each measurement point (P) of the preform (10) that has been predetermined and an actually measured temperature distribution at each measurement point (P) of the preform (10).

Systems and methods control the operation of a blow molder. An indication of a crystallinity of at least one container produced by the blow molder may be received along with a material distribution of the at least one container. A model may be executed, where the model relates a plurality of blow molder input parameters to the indication of crystallinity and the material distribution and where a result of the model comprises changes to at least one of the plurality of blow molder input parameters to move the material distribution towards a baseline material distribution and the crystallinity towards a baseline crystallinity. The changes to the at least one of the plurality of blow molder input parameters may be implemented.

The apparatus for manufacturing a resin container includes a heating unit configured to heat a preform using heaters and, a blow molding unit configured to blow-mold the preform that has been heated, accumulators that are connected to the blow molding unit and for storing a pressurized gas to be used for blow molding, and a connection pipe that connects the heating unit and the accumulators via an electrically driven valve, in which the electrically driven valve is closed when electric power is supplied, and is opened when electric power is not supplied to cause the gas in the accumulators to flow to the heating unit.