LIQUID CIRCULATION MECHANISM, LIQUID CIRCULATION DEVICE, AND LIQUID DISCHARGE DEVICE

• Main Authors: OTSURU MUNECHIKA, URABE YUICHI, NAKADA TOSHIO, SHIOHARA YUKI, ARAFUKA KAZUSHI
• Format: Patent
• Language: English; Japanese
• Published: 10.08.2022
• Subjects: CORRECTION OF TYPOGRAPHICAL ERRORS; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; LINING MACHINES; PERFORMING OPERATIONS; PRINTING; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS

To provide a liquid circulation mechanism, a liquid circulation device and a liquid discharge device which can circulate a liquid at a flow rate according to a control state.SOLUTION: Between a first storage part 41 in a supply flow passage 19 and a liquid discharge head 21, and between the liquid discharge head 21 in a recovery flow passage 35 and the first storage part 41, branch parts 61A and 66A, a plurality of flow passages 62A, 62B, 67A and 67B branched at the branch parts 61A and 66A, and junction parts 61B and 66B where the plurality of flow passages 62A, 62B, 67A and 67B join with each other. The flow passages where the liquid flows in the plurality of flow passages 62A, 62B, 67A and 67B can be switched. Each of pressure control parts 63A, 63B, 68A and 68B opens the flow passages by setting a pressure on the side of the liquid discharge head 21 at a predetermined pressure, and the predetermined pressures of opening the flow passages in each of the plurality of flow passages 62A, 62B, 67A and 67B are different.SELECTED DRAWING: Figure 3 【課題】制御状況に応じた流速で液体を循環させることができる液体循環機構、液体循環装置及び液体吐出装置を提供する。【解決手段】供給流路１９における第１貯留部４１と液体吐出ヘッド２１との間、及び、回収流路３５における液体吐出ヘッド２１と第１貯留部４１との間には、分岐部６１Ａ，６６Ａと、分岐部６１Ａ，６６Ａにて分岐する複数の流路６２Ａ，６２Ｂ，６７Ａ，６７Ｂと、複数の流路６２Ａ，６２Ｂ，６７Ａ，６７Ｂが合流する合流部６１Ｂ，６６Ｂと、が設けられる。複数の流路６２Ａ，６２Ｂ，６７Ａ，６７Ｂにおいて液体が流れる流路を切替可能に構成される。各圧力調整部６３Ａ，６３Ｂ，６８Ａ，６８Ｂは、液体吐出ヘッド２１側の圧力が所定の圧力になることで流路を開放し、複数の流路６２Ａ，６２Ｂ，６７Ａ，６７Ｂのそれぞれで流路を開放する所定の圧力が異なる。【選択図】図３