公开(公告)号：US12023863B2

公开(公告)日：2024-07-02

申请号：US17298011

申请日：2019-04-29

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Jordi Blanch Costa ,  Daniel Gonzalez Perello ,  Sergi Culubret Cortada ,  Fernando Juan Jover ,  Steven J. White ,  Donald Higgins

IPC: B29C64/218 ,  B29C64/295 ,  B33Y30/00

CPC classification number: B29C64/218 ,  B29C64/295 ,  B33Y30/00

Abstract: An additive manufacturing machine (34) comprising a build material spreading system (2). The spreading system (2) has a moveable spreader (4) with an exterior surface (8) to spread build material. The spreading system (2) also has a heater (10) located separate from the spreader (4). The heater (10) has a heat dissipater (20) extending around the spreader (4) to retain, between the dissipater (20) and the spreader (4), air (36) heated by the dissipater (20).

公开(公告)号：US12053929B2

公开(公告)日：2024-08-06

申请号：US17433211

申请日：2019-04-29

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Cristian Ferris Roig ,  Tania Torm Obradors ,  Jordi Blanch Costa

IPC: B29C64/295 ,  B29C64/153 ,  B29C64/165 ,  B29C64/245 ,  B29C64/25 ,  B33Y10/00 ,  B33Y30/00 ,  H05B3/26

CPC classification number: B29C64/295 ,  B29C64/153 ,  B29C64/165 ,  B29C64/245 ,  B29C64/25 ,  B33Y10/00 ,  B33Y30/00 ,  H05B3/26 ,  H05B2203/013

Abstract: A build unit for a three-dimensional printer, comprising a housing comprising sidewalls and a build platform movable within the housing. The housing and the build platform form a build chamber. The build unit further comprises a lateral heater mounted on the housing. The lateral heater is operable to apply a uniform housing temperature across all the section of the build unit by delivering variable power density along the housing.

公开(公告)号：US20220194001A1

公开(公告)日：2022-06-23

申请号：US17416125

申请日：2019-09-10

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Esteve Comas Cespedes ,  Xavier Soler Pedemonte ,  Jordi Blanch Costa

IPC: B29C64/268 ,  B29C64/393

Abstract: A printing unit comprises a movable carriage being movable along a path and having a plurality of energy emitters arranged in an array, a controller to control a supplied energy level of the emitters, and a sensor unit to measure an emitted energy level of each emitter, wherein the controller is to compare the measured energy level with a target energy level associated with the supplied energy level to obtain and to generate a matrix indicating a compensation value for each emitter based on the comparison result so as to calibrate the energy level of comparison result.