Disclosed are a water storage tank bladder, a manufacturing method therefor, the water storage tank including the bladder, and a water treatment apparatus including the water storage tank. According to one embodiment of the present invention, the water storage tank bladder used in the water storage tank to receive and store water and discharge the stored water has a lower side of which the thickness can be thicker than the thickness of the upper side of the bladder and thicker than the thickness of the lateral sides of the bladder.

Provided is an apparatus for molding plastic preforms into plastic containers, with at least one blow molding arrangement, which includes at least a first mold carrier, a second mold carrier and a blow-molding device having at least two blow mold side parts and a base part, wherein the blow molding device can be releasably arranged on the mold carriers via a locking mechanism and forms a cavity inside which the plastic preforms can be molded into the plastic containers, wherein during the molding process, the mold carriers can be latched together by a latching device, and the apparatus includes a changeover robot which is suitable and intended for extracting the blow-molding device in an assembled state from the mold carriers.

Provided is an apparatus for molding plastic preforms into plastic containers, with at least one blow molding arrangement, which includes at least a first mold carrier, a second mold carrier and a blow-molding device having at least two blow mold side parts and a base part, wherein the blow molding device can be releasably arranged on the mold carriers via a locking mechanism and forms a cavity inside which the plastic preforms can be molded into the plastic containers, wherein during the molding process, the mold carriers can be latched together by a latching device, and the apparatus includes a changeover robot which is suitable and intended for extracting the blow-molding device in an assembled state from the mold carriers.

An extrusion blow mold machine forming hollow containers. The machine has at least one pair of opposing half molds that combine to form a mold and define a mold cavity. Each of the half molds is positioned on a carrier plate and includes first, second, and third mold segments. The first and third mold segments can move with respect to each other and with respect to the second, fixed mold segment. A mechanical structure creates vertical movement of the first and third mold segments relative to the second mold segment as the mold opens horizontally, without the aid of any electrical, hydraulic, or pneumatic device. A closing unit engages the carrier plate to move the carrier plate and its respective half mold toward and away from the opposing half mold and its respective carrier plate, thereby closing and opening the mold.

An extrusion blow mold machine forming hollow containers. The machine has at least one pair of opposing half molds that combine to form a mold and define a mold cavity. Each of the half molds is positioned on a carrier plate and includes first, second, and third mold segments. The first and third mold segments can move with respect to each other and with respect to the second, fixed mold segment. A mechanical structure creates vertical movement of the first and third mold segments relative to the second mold segment as the mold opens horizontally, without the aid of any electrical, hydraulic, or pneumatic device. A closing unit engages the carrier plate to move the carrier plate and its respective half mold toward and away from the opposing half mold and its respective carrier plate, thereby closing and opening the mold.

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 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 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.

The invention relates to a mold for molding a hollow body from a preform, the mold defining a molding cavity having the shape of the a hollow body to be molded. The mold including a first part and a second part movable relative to each other between an opened configuration, wherein the preform can be loaded inside the molding cavity, and a closed configuration, wherein the molding cavity is formed. The mold further including a locking element arranged to maintain the mold in its closed configuration in a locked position of the mold. The locking element having at least a sleeve portion arranged around a portion of the first and second parts in the closed configuration such that the sleeve portion surrounds the portion of the first and second parts and prevents the mold from moving towards its open configuration in the locked position of the mold.