Blowing mold array, stretch blow molding machine and method

A blow mould assembly for moulding plastic preforms into plastic containers, comprising a blow mould unit forming a cavity, within which the plastic performs can be expanded into plastic containers, said blow mould unit being formed at least in two parts, and comprising a blow mould holder for receiving the blow mould unit, wherein the blow mould holder has at least two mould holder elements for receiving parts of the blow mould unit, and comprising a locking mechanism in order to arrest at least a part of the blow mould unit in relation to at least one mould holder element, said locking mechanism having an engagement member that can be pivoted and/or displaced in relation to a specified axis (X), which engagement member rests in an arrested condition of part of the blow mould unit in relation to a mould holder element on a section of part of the blow mould unit,

• wherein the locking mechanism has an actuating member, in order to release an arrest between the mould holder element and the blow mould unit, and a movement of this actuating member is coupled to the movement of the engagement member,
• wherein the locking mechanism includes at least two engagement members which are disposed one after the other in a longitudinal direction (L) of the blow mould unit.

A blow mould assembly for moulding plastic preforms into plastic containers, comprising a blow mould unit forming a cavity, within which the plastic preforms can be expanded into plastic containers, said blow mould unit being formed at least in two parts, and comprising a blow mould holder for receiving the blow mould unit, said blow mould holder having at least two mould holder elements for receiving parts of the blow mould unit,

• wherein the blow mould assembly includes a device for generating a negative pressure that acts between at least one part of the blow mould unit and at least one mould holder element by which negative pressure the part of the blow mould unit is retained on the mould holder element.

A method for arresting at least a part of a blow mould unit in relation to a blow mould holder, which receives the blow mould unit, in a blow mould assembly for moulding plastic preforms into plastic containers,

• wherein the part of the blow mould unit is retained on the blow mould holder with negative pressure.

A blow mould assembly for moulding plastic preforms into plastic containers, comprising a blow mould unit forming a cavity, within which the plastic preforms can be expanded into plastic containers, said blow mould unit being formed at least in two parts, and comprising a blow mould holder for receiving the blow mould unit, wherein the blow mould holder has at least two mould holder elements for receiving parts of the blow mould unit, and comprising a locking mechanism in order to arrest at least a part of the blow mould unit in relation to at least one mould holder element, said locking mechanism having an engagement member that can be pivoted and/or displaced in relation to a specified axis (X), which engagement member rests in an arrested condition of part of the blow mould unit in relation to a mould holder element on a section of part of the blow mould unit,

• wherein the locking mechanism has an actuating member, in order to release an arrest between the mould holder element and the blow mould unit, and a movement of this actuating member is coupled to the movement of the engagement member, wherein blow mould parts can respectively be unlocked by a manual actuating member, which is mounted so as to be pivotable about the axis (X) from an opening position to a closing position and has a rod-shaped body having an eccentric cross-sectional profile or an eccentric recess.

A blow mould assembly for moulding plastic preforms into plastic containers, comprising a blow mould unit forming a cavity, within which the plastic preforms can be expanded into plastic containers, said blow mould unit being formed at least in two parts, and comprising a blow mould holder for receiving the blow mould unit, wherein the blow mould holder has at least two mould holder elements for receiving parts of the blow mould unit, and comprising a locking mechanism in order to arrest at least a part of the blow mould unit in relation to at least one mould holder element, said locking mechanism having an engagement member that can be pivoted and/or displaced in relation to a specified axis (X), which engagement member rests in an arrested condition of part of the blow mould unit in relation to a mould holder element on a section of part of the blow mould unit,

• wherein the locking mechanism has an actuating member, in order to release an arrest between the mould holder element and the blow mould unit, and a movement of this actuating member is coupled to the movement of the engagement member, wherein the actuating member is displaceable in direction (Z), in order to achieve an arrest of a part of the blow mould relative to the blow mould holder.

A blow mould assembly for moulding plastic preforms into plastic containers, comprising a blow mould unit forming a cavity, within which the plastic preforms can be expanded into plastic containers, said blow mould unit being formed at least in two parts, and comprising a blow mould holder for receiving the blow mould unit, wherein the blow mould holder has at least two mould holder elements for receiving parts of the blow mould unit, and comprising a locking mechanism in order to arrest at least a part of the blow mould unit in relation to at least one mould holder element, said locking mechanism having an engagement member that can be pivoted and/or displaced in relation to a specified axis (X), which engagement member rests in an arrested condition of part of the blow mould unit in relation to a mould holder element on a section of part of the blow mould unit,

• wherein recesses are provided in the blow mould, to facilitate removal of the blow mould from the mould carrier or the master mould upon unlocking.