Patent classifications
B29C33/20
Foaming apparatus for refrigerator cabinets and related foaming method
A foaming apparatus for foaming a refrigerator cabinet includes a frame including a supporting structure, and first and second foaming jigs restrained to the supporting structure opposite to each other relative to the supporting structure. The first and second foaming jigs being respectively arranged in a lower position and in an upper position relative to a vertical direction of the foaming apparatus in an operating condition thereof. Each foaming jig includes a bottom wall, peripheral walls configured to enclose an outer shell of the refrigerator cabinet, a plug configured to engage an inner shell of the refrigerator cabinet, and at least one injection head configured to carry out injection of a foaming mixture into the refrigerator cabinet received therein. The peripheral walls and the plug are restrained to the supporting structure, whereas the bottom wall is removably mounted to the peripheral walls.
Foaming apparatus for refrigerator cabinets and related foaming method
A foaming apparatus for foaming a refrigerator cabinet includes a frame including a supporting structure, and first and second foaming jigs restrained to the supporting structure opposite to each other relative to the supporting structure. The first and second foaming jigs being respectively arranged in a lower position and in an upper position relative to a vertical direction of the foaming apparatus in an operating condition thereof. Each foaming jig includes a bottom wall, peripheral walls configured to enclose an outer shell of the refrigerator cabinet, a plug configured to engage an inner shell of the refrigerator cabinet, and at least one injection head configured to carry out injection of a foaming mixture into the refrigerator cabinet received therein. The peripheral walls and the plug are restrained to the supporting structure, whereas the bottom wall is removably mounted to the peripheral walls.
Production method of mold having recessed pattern, and manufacturing method of pattern sheet
Provided are a production method of a mold having a recessed pattern, and a manufacturing method of a pattern sheet having good accuracy and excellent productivity. The production method of a mold includes: a step of preparing an electroform having a protruding pattern and a mold having a first mold and a second mold forming a cavity; a step of fixing the electroform excluding an end portion of the electroform to the first mold; a clamping step of clamping the electroform excluding the end portion of the electroform and a region of the protruding pattern between the first mold and the second mold to form the cavity; and an injection step of filling the cavity with a resin.
Production method of mold having recessed pattern, and manufacturing method of pattern sheet
Provided are a production method of a mold having a recessed pattern, and a manufacturing method of a pattern sheet having good accuracy and excellent productivity. The production method of a mold includes: a step of preparing an electroform having a protruding pattern and a mold having a first mold and a second mold forming a cavity; a step of fixing the electroform excluding an end portion of the electroform to the first mold; a clamping step of clamping the electroform excluding the end portion of the electroform and a region of the protruding pattern between the first mold and the second mold to form the cavity; and an injection step of filling the cavity with a resin.
Method of moulding and mould tool
A method of moulding (10; 20) and apparatus (108; 208; 308) therefor, in which a workpiece (100) is preheated and/or post-cooled before and/or after a moulding process, allowing optimal use of the tool for high precision moulding operations.
Movable platen, opening/closing apparatus and molding apparatus
A movable platen according to the present invention includes: a mold clamping platen 42 having a projecting portion 62 in a mold closing direction-side surface; a mold mounting platen 44 mounted to the projecting portion 62 of the mold clamping platen 42; and a guide mechanism 50 fixed to the mold clamping platen 42 and supporting the mold mounting platen 44. Only the mold clamping platen 42 is fixed to the guide mechanism 50, while the mold mounting platen 44 is not fixed but placed on platen surface support portions 52.
Movable platen, opening/closing apparatus and molding apparatus
A movable platen according to the present invention includes: a mold clamping platen 42 having a projecting portion 62 in a mold closing direction-side surface; a mold mounting platen 44 mounted to the projecting portion 62 of the mold clamping platen 42; and a guide mechanism 50 fixed to the mold clamping platen 42 and supporting the mold mounting platen 44. Only the mold clamping platen 42 is fixed to the guide mechanism 50, while the mold mounting platen 44 is not fixed but placed on platen surface support portions 52.
METHOD FOR MANUFACTURING FIBER REINFORCED RESIN MOLDED ARTICLE, AND MANUFACTURING DEVICE THEREOF
Provided is a method for manufacturing a fiber reinforced resin molded article capable of distributing the pressure without concentration on the vicinity of the resin inlet and so preventing the deformation of a preform, and such a manufacturing device thereof. The method lowers a lower core as a moving core in a lower mold (first mold) (away from a preform) to let resin flow toward the lower mold (first mold). This distributes the pressure concentrated in the vicinity of the resin inlet and prevents deformation of the preform.
APPARATUSES, METHODS, AND PRODUCTS FOR COLD SPRAY ADDITIVE MANUFACTURING OF MULTI CURVED AND REINFORCED COMPONENTS
Implementations provide cold spray additive manufacturing (“CSAM”)-based fabrication of a complex multi curvature part (“CMCP”) by cold spraying onto a mold. Implementations achieve the desired shape and dimensions of a CMCP having variable surface thicknesses and utilize reinforcements integrated during CSAM. Reinforcements are integral to each CMCP as soon as fabrication is complete, and maintain stiffness, avoid fluttering, and provide other similar benefits. Implementations provide a stiff CMCP with multiple curvatures having fully controllable variable thicknesses. Integral reinforcements added during fabrication avoid tolerance issues by avoiding coupling non-reinforced CMCPs to reinforcements or other post-fabrication adjustments. CSAM-based CMCPs, having directly integrated reinforcements, exhibit superior tolerances that do not need to be re-worked or otherwise corrected after fabrication. Reinforcement attachment methods that have complex load transfer behavior are not necessary. In some implementations, simplifying load transfer increases the maximum load and decreases the overall weight of the finished CMCP.
APPARATUSES, METHODS, AND PRODUCTS FOR COLD SPRAY ADDITIVE MANUFACTURING OF MULTI CURVED AND REINFORCED COMPONENTS
Implementations provide cold spray additive manufacturing (“CSAM”)-based fabrication of a complex multi curvature part (“CMCP”) by cold spraying onto a mold. Implementations achieve the desired shape and dimensions of a CMCP having variable surface thicknesses and utilize reinforcements integrated during CSAM. Reinforcements are integral to each CMCP as soon as fabrication is complete, and maintain stiffness, avoid fluttering, and provide other similar benefits. Implementations provide a stiff CMCP with multiple curvatures having fully controllable variable thicknesses. Integral reinforcements added during fabrication avoid tolerance issues by avoiding coupling non-reinforced CMCPs to reinforcements or other post-fabrication adjustments. CSAM-based CMCPs, having directly integrated reinforcements, exhibit superior tolerances that do not need to be re-worked or otherwise corrected after fabrication. Reinforcement attachment methods that have complex load transfer behavior are not necessary. In some implementations, simplifying load transfer increases the maximum load and decreases the overall weight of the finished CMCP.