# US 12,005,621 B2 · Manufacturing method and injection molding system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,005,621 B2 - Document ID: US12005621B2 - Status: Granted - Kind: B2 - Application number: 17/611,513 - Filed: 2020-05-13 - Published: 2022-06-30 - Granted: 2024-06-11 - Earliest claimed: 2019-05-17 - Assignees: Canon Virginia, Inc. - Applicants: Canon Virginia, Inc. - Inventors: Koki Kodaira; Yuichi Yanahara - Web page: https://patentgrep.com/patent/US12005621B2 ## CPC - A61P 41/00: Drugs used in surgical methods, e.g. surgery adjuvants for preventing adhesion or for vitreum substitution - B29C 45/7686: {the ejected articles, e.g. weight control} - A61L 31/041: {Mixtures of macromolecular compounds} - A61L 31/042: {Polysaccharides} - B29C 45/0408: {involving at least a linear movement (B29C45/0433 takes precedence)} - B29C 45/1756: {Handling of moulds or mould parts, e.g. mould exchanging means (moulds per se B29C45/26)} - C08J 3/075: Macromolecular gels - C08L 1/28: Alkyl ethers - C08L 5/08: Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof - A61L 2400/06: Flowable or injectable implant compositions - A61L 2430/38: for reconstruction of the spine, vertebrae or intervertebral discs - B29C 2945/76464: cameras - B29C 2945/76973: By counting - C08J 2301/28: Alkyl ethers - C08J 2405/08: Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof - C08L 2203/02: for biomedical use - A61P: SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K) - C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29) - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) ## Abstract A method for manufacturing a molded part while changing between multiple molds including a first ejecting step of opening a first mold and ejecting the molded part from the first mold, a checking step of checking the ejected molded part to determine if the molded part is acceptable, a first injecting step of closing the first mold and performing injection into the first mold, a second ejecting step of, where the ejected molded part is determined to be acceptable, changing the first mold to a second mold and ejecting the molded part from the second mold after the first injecting step, and a third ejecting step of, in a case where the molded part ejected in the first ejecting step is determined to be non-acceptable, not changing the first mold to the second mold and ejecting the molded part from the first mold. ## Claims ### Claim 1 A method for manufacturing a molded part by an injection molding machine while changing between multiple molds, the method comprising: a first ejecting step of opening a first mold in the injection molding machine and ejecting the molded part from the first mold; a checking step of checking the molded part, ejected in the first ejecting step, to determine if the molded part is an acceptable part; a first injecting step of closing the first mold and performing injection into the first mold; and a second ejecting step, wherein, in a case where the molded part ejected in the first ejecting step is determined to be an acceptable part, the second ejecting step includes changing the first mold in the injection molding machine to a second mold, a second injecting step of closing the second mold and performing injection into the second mold, and ejecting another molded part from the second mold after the first injecting step; and wherein, in a case where the molded part ejected in the first ejecting step is determined to be a non-acceptable part, the second ejecting step does not include changing the first mold to the second mold, and includes ejecting the molded part from the first mold. ### Claim 2 (depends on 1) The method according to claim 1, wherein a shape of the first mold is different from a shape of the second mold. ### Claim 3 (depends on 1) The method according to claim 1, wherein the checking step includes analyzing a captured image of the molded part. ### Claim 4 (depends on 1) The method according to claim 1, wherein the checking step is completed before start of changing from the first mold to the second mold. ### Claim 5 (depends on 1) The method according to claim 1, further comprising: a placing step of placing the molded part ejected from the first mold into a cavity in the second mold; and a second injecting step of closing the second mold into which the molded part is placed and performing injection into the second mold. ### Claim 6 (depends on 5) The method according to claim 5, wherein the placing step includes, in a case where the molded part ejected from the first mold is the non-acceptable part, the molded part different from the non-acceptable part, ejected from the first mold, and checked as the acceptable part is placed in the cavity in the second mold. ### Claim 7 A method for manufacturing a molded part by an injection molding machine while alternating between multiple molds, the method comprising: a first ejecting step of opening a first mold in the injection molding machine and ejecting the molded part from the first mold; a checking step of checking the molded part, ejected in the first ejecting step, to determine if the molded part is an acceptable part; a first injecting step of closing the first mold and performing injection into the first mold; a first changing step of changing the first mold in the injection molding machine to a second mold; a second ejecting step of, in a case where the molded part ejected in the first ejecting step is an acceptable part, that includes a second injecting step of closing the second mold and performing injection into the second mold, and ejecting another molded part from the second mold after the first changing step; and a second changing step of, in a case where the molded part ejected in the first ejecting step is a non-acceptable part, not ejecting the another molded part from the second mold, and changing the second mold in the injection molding machine to the first mold. ### Claim 8 (depends on 7) The method according to claim 7, wherein a shape of the first mold is different from a shape of the second mold. ### Claim 9 (depends on 7) The method according to claim 7, wherein the checking step includes analyzing a captured image of the molded part. ### Claim 10 (depends on 7) The method according to claim 7, wherein the checking step is completed before start of changing from the first mold to the second mold. ### Claim 11 (depends on 7) The method according to claim 7, further comprising: a placing step of placing the molded part ejected from the first mold into a cavity in the second mold; and a second injecting step of closing the second mold into which the molded part is placed and performing injection into the second mold. ### Claim 12 (depends on 11) The method according to claim 11, wherein the placing step includes, in a case where the molded part ejected from the first mold is the non-acceptable part, the molded part different from the non-acceptable part, ejected from the first mold, and checked as the acceptable part is placed in the cavity in the second mold. ### Claim 13 A method for manufacturing a molded part by an injection molding machine while changing between multiple molds, the method comprising: a first injection step for injecting material into a first mold positioned at a molding operation position of the injection molding machine; a first ejecting step for ejecting, from the first mold, a molded part created from the material injected in the first injecting step; a second injection step for injecting material into the first mold; a determination step for determining if the molded part ejected in the first ejecting step is a non-acceptable part; a second ejecting step for ejecting from the first mold a molded part created from the material injected in the second injecting step; a first changing step, performed after the determination step and before the second ejecting step, for conveying the first mold from the molding operation position and conveying a second mold into the molding operation position; and a second changing step of, in a case where the molded part ejected in the first ejecting step is a non-acceptable part, not ejecting another molded part from the second mold, and changing the second mold in the injection molding machine to the first mold, wherein the second mold is different from the first mold, and wherein the injection molding machine comprises a camera and the determining in the determination step is performed via an image of the molded part captured by the camera.