Provided is a method for manufacturing a synthetic resin container, including: after the shaping of a container, drawing back a liquid inside the container to a pressurized liquid feeding unit side by a suckback mechanism disposed at a predetermined position in a feeding channel of the liquid from the pressurized liquid feeding unit to a mouth tube portion of a preform; closing the feeding channel by means of a valve mechanism disposed on the downstream side of the suckback mechanism; introducing a gas into the container so that the volume reduction deformation of the container resulting from the drawing back of the liquid is restored to its original shape; and adjusting a headspace inside the container with the amount of volume change associated with the volume reduction deformation.

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.

A molding unit (1) for blow molding a container from a parison, the container including a wall portion and a base, the molding unit (1) including: a mold sidewall (2) extending along a main axis (X) and having an inner molding surface (3) defining a counter print of the wall portion of the container, and an opening (8) at a lower end of the inner molding surface (3), a cylinder jacket (10) fixed to the mold sidewall (2) and extending axially below the opening (8); a movable mold base (14) having a cylindrical bracket (17) slidingly received within the cylinder jacket (10) and a body (15) axially protruding from the bracket (17), a wear ring (33) fixed to the mold base (14), the wear ring (33) including a cylindrical guiding bushing (34) interposed between the bracket (17) and the cylinder jacket (10).

A blow molding device of the invention includes a pair of blow cavity split molds (50A, 50B), a chuck member (80) that chucks a mouth portion (20) and conveys a preform (10A), a blow core mold (70) that includes a tubular portion (71) which surrounds circumferences of the mouth portion and a flange (25) and introduces blow air into the preform, and a pair of projecting members (60A, 60B) which have a halved ring shape and are provided detachably on each upper surface of the pair of blow cavity split molds. Each of the pair of projecting members includes an airtight sealing portion (61) which is in contact with a lower end face of the tubular portion of the blow core mold, and a positioning portion (62) which positions the flange of the preform.

A molding apparatus that adsorbs thermoplastic resin extruded in a sheet form from an extruding machine, onto a cavity of a mold, and shapes the thermoplastic resin into a shape according to the cavity is provided. The molding apparatus may include a frame that is positioned on a periphery of the mold and is movable relative to the mold, wherein a suction part for suctioning the thermoplastic resin is provided in a contact surface of the frame to contact the thermoplastic resin, and the suction part is provided in a linear shape along with a longitudinal direction of the frame positioned on the periphery of the mold.

There is provided a system, a method and preform suitable for executing liquid forming of the preform into a final-shaped container. The present technology includes various improvements to methods, apparatuses, and systems for forming final-shaped containers from preforms using a liquid destined to be contained in the final-shaped container.

An apparatus (100) for the fabrication of a container (300) comprising a mold (121) defining the form of said container (300) and configured to accommodate a substantially tubular preform, an injection head (115) configured to interface with the preform (108) and establish fluid communication with a cavity thereof; and an injection valve (202), said injection valve (202) configured to selectively permit fluid communication through said injection head (115); said apparatus (100) further comprising at least one compression means (303A, 303B) mobile relative to said mold (121) such that said at least one compression means (303A, 303B) is disposed outside said mold cavity (105) in a retracted position and projects into said mold cavity (105) in an extended position.

A blow core mold unit includes a first core member configured to be loosely fitted to a neck portion of a preform, a second core member provided around the first core member and in contact with a neck mold, and a third core member provided in a space portion formed between the first core member and the second core member, and the blow core mold unit has a second supply flow path for supplying a high-pressure fluid into the space portion.

A method, system, and preform for liquid forming of the preform into a final-shaped container using the liquid to be contained in the final-shaped container. The preform undergoes a stretching step to a size less than the size of a base of the final-shaped container, before being relocated and stretched to the final shape by the liquid. A stretch rod sealably connects with an interior surface of the preform to partially isolate a gate portion of the preform. The isolation is effected by a portion of the inner surface of the preform extending inwardly, or by a deformable member on the stretch rod which can selectively extend outwardly to contact the interior surface of the preform. The stretch rod includes a selectively heatable tip to heat the gate portion of the preform. The gate portion of the preform includes inner, outer, and core layers which comprise a material configured to affect the thermal properties of the gate portion.

A gaiter seal for shielding a functional element of a container-processing machine extends between parts of a working head of the container-processing machine includes axially-adjacent gaiter modules that extend along an axis and support-and-sliding elements at interfaces between adjacent gaiter modules. The support-and-sliding elements radially support and guide the first and second gaiter-modules along the functional element.