# US 12,109,579 B2 · Multi-needle head, method of aligning end portion of multi-needle head, and alignment device used therein > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,109,579 B2 - Document ID: US12109579B2 - Status: Granted - Kind: B2 - Application number: 17/695,976 - Filed: 2022-03-16 - Published: 2022-10-20 - Granted: 2024-10-08 - Earliest claimed: 2021-04-14 - Assignees: Gosantech Co., Ltd. - Applicants: Gosantech Co., Ltd. - Inventors: Dongkyun Shin - Web page: https://patentgrep.com/patent/US12109579B2 ## CPC - B05B 15/60: Arrangements for mounting, supporting or holding spraying apparatus - B05B 5/035: characterised by gasless spraying {, e.g. electrostatically assisted airless spraying (B05B5/04, B05B5/043, B05B5/047 take precedence)} - B05B 5/16: Arrangements for supplying liquids or other fluent material - B05B 13/0278: {Arrangement or mounting of spray heads (B05B13/0207 takes precedence)} - B05D 1/02: performed by spraying - B05C 5/027: {Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated (B05C5/0254 takes precedence)} - B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D) - B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02) - B05C: APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (spraying apparatus, atomising apparatus, nozzles B05B; plant for applying liquids or other fluent materials to objects by electrostatic spraying B05B5/08) ## Abstract Proposed is a multi-needle head. The multi-needle head includes at least one adapter mounted with a needle in which liquid is discharged therethrough, and includes a holder in which the adapter is fixed. An O-ring having an outer diameter thereof larger than a width of a body of the adapter is coupled to the body of the adapter, a fixing hole into which the body of the adapter is inserted is formed in the holder, and an O-ring fixing portion having an inner diameter thereof larger than an inner diameter of the fixing hole is formed in the middle of the fixing hole such that the O-ring is positioned at the O-ring fixing portion. A vertical width of the O-ring fixing portion is larger than a vertical width of the O-ring, thereby allowing a height of the adapter that is fixed to the holder to be adjusted. ## Claims ### Claim 1 A multi-needle head comprising: at least one adapter mounted with a needle in which liquid is discharged therethrough; and a holder in which the adapter is fixed, wherein an O-ring having an outer diameter thereof larger than a width of a body of the adapter is coupled to the body of the adapter, a fixing hole into which the body of the adapter is inserted is formed in the holder, and an O-ring fixing portion having an inner diameter thereof larger than an inner diameter of the fixing hole is formed in the middle of the fixing hole such that the O-ring is positioned at the O-ring fixing portion, wherein a vertical width of the O-ring fixing portion is larger than a vertical width of the O-ring, thereby allowing a height of the adapter that is fixed to the holder to be adjusted. ### Claim 2 (depends on 1) The multi-needle head of claim 1, wherein the holder is formed of a plurality of parts that is cut on the basis of the fixing hole, and the plurality of parts is assembled after the adapter to which the O-ring is coupled is inserted into the holder while the plurality of parts that forms the holder is in a separated state. ### Claim 3 (depends on 2) The multi-needle head of claim 2, wherein when the holder formed of the plurality of parts is assembled, a position of the adapter is fixed. ### Claim 4 (depends on 1) The multi-needle head of claim 1, further comprising a manifold which is coupled to an upper portion of the holder and which is configured to supply the liquid to a plurality of needles, wherein a housing of the manifold is provided with a cavity which is filled with the liquid and which is formed on a position corresponding to the adapter, and the housing of the manifold is provided with a supply pipe through which the liquid is supplied to the cavity and a collecting pipe through which the liquid inside the cavity is discharged outside. ### Claim 5 (depends on 4) The multi-needle head of claim 4, further comprising an exhaust pipe connected to the cavity, wherein a valve configured to open and close the exhaust pipe is mounted on the exhaust pipe. ### Claim 6 (depends on 3) A method of aligning an end portion of the needle of the multi-needle head of claim 3, the method comprising: temporally assembling a holder by inserting an adapter into a fixing hole of the holder and assembling the holder to an extent that a height of the adapter is capable of being adjusted; aligning a height of the end portion of the needle by adjusting the height of the adapter; and fixing the holder so that the height of the adapter is fixed. ### Claim 7 (depends on 3) A device for aligning an end portion of a needle of the multi-needle head of claim 3, the device comprising: a reference portion provided with a reference surface that is a flat surface capable of matching a height of the end portion of the needle to be constant; a stand provided with a stand surface on which a holder of the multi-needle head is placed, the stand being configured to maintain a space between the reference surface and the stand surface; and an adjusting portion capable of adjusting a space between a bottom surface of the holder and the reference surface, wherein when the multi-needle head is in a state of being placed on the stand surface, the space between the bottom surface of the holder and the reference surface is adjusted until each end portion of all of a plurality of needles is in contact with the reference surface. ### Claim 8 (depends on 7) The device of claim 7, wherein the reference surface is inclined at a predetermined angle to the ground, and a stand surface is arranged at an angle perpendicular to the reference surface so that the multi-needle head is diagonally placed.