Spinning head and spinning apparatus

Abstract

In an embodiment, a spinning head includes a head main body and a nozzle, and a storage cavity storing a material liquid is formed inside the head main body. The nozzle projects from an outer peripheral surface of the head main body, and an ejection port ejecting a material liquid is formed at a projection end. A flow path communicating with the storage cavity extends through an inside of the nozzle to the ejection port. The ejection port is located on an upper side of a vertical direction relative to the connecting part to the storage cavity, and at least a part of the flow path is tilted relative to a horizontal plane. An upper end of the connecting part of the flow path to the storage cavity is located at the same height as or on the upper side relative to an upper end of the storage cavity.

What is claimed is: 
     
         1 . A spinning head configured to eject a material liquid against an area in which a transfer target is transferred in a vertical direction in a transfer path, the spinning head comprising:
 a head main body in which a storage cavity capable of storing the material liquid is formed in an inside; and   a nozzle projecting from an outer peripheral surface of the head main body, an ejection port, which is capable of ejecting the material liquid, being formed at a projection end projecting from the head main body, the flow path, which is connected to the storage cavity, extending up to the ejection port through an inside of the nozzle, wherein   the ejection port is located on an upper side of the vertical direction with respect to a connecting part to the storage cavity, at least a part of the flow path is tilted with respect to a horizontal plane, and   an upper end of the connecting part of the flow path to the storage cavity is located either at a same height as an upper end of the storage cavity or on the upper side of the vertical direction with respect to the upper end of the storage cavity.   
     
     
         2 . The spinning head according to  claim 1 , wherein
 a flow path peripheral surface of the flow path includes a flow path upper surface adjacent to the flow path from the upper side of the vertical direction, and   the flow path upper surface is constituted only by a part tilted with respect to the horizontal plane in such a manner that it extends upward in the vertical direction as it is closer to the ejection port, or only by the tilted part and a horizontal part extending horizontally.   
     
     
         3 . The spinning head according to  claim 1 , wherein the flow path includes:
 a first flow path extending part;   a second flow path extending part that is provided closer to the ejection port compared to the first flow path extending part and that has a smaller flow path cross-section area compared to the first flow path extending part; and   a flow path cross-section changing part provided between the first flow path extending part and the second flow path extending part, the flow path cross-sectional area of the flow path cross-section changing part being reduced from the first flow path extending part toward the second first flow path extending part, and   an upper end of a connecting part of the second flow path cross-section changing part to the flow path cross-section changing part is located either at a same height as an upper end of each of the flow path cross-section changing part and the first flow path extending part or on the upper side of the vertical direction with respect to the upper end of each of the flow path cross-section changing part and the first flow path extending part.   
     
     
         4 . The spinning apparatus according to  claim 1 , wherein
 an axial direction of the head main body intersects with both of the vertical direction and the projection direction of the nozzle, and   a cross-sectional shape of the storage cavity in a cross section perpendicular to the axial direction of the head main body is uniform within a range in which the connecting part of the flow path to the storage cavity is formed in the axial direction of the head main body.   
     
     
         5 . A spinning apparatus comprising:
 the spinning apparatus according to  claim 1 ; and   the transfer path on which the transfer target is transferred along the vertical direction in an area in which the material liquid is ejected from the nozzle of the spinning head.