Coating die head

The utility model discloses a coating die head. The coating die head comprises an upper die head, a lower die head and an adjusting mechanism, the upper die head is provided with a through groove, a gap is formed between the lower die head and the upper die head, the adjusting mechanism comprises a driving part, a micrometer head assembly and a flow blocking part, the micrometer head assembly comprises a differential adjusting rod, a differential mounting sleeve and a differential executing rod, and the differential adjusting rod is connected with the driving part; the differential adjusting rod is in threaded connection with the differential installation sleeve and the differential execution rod. The thread pitch between the differential adjusting rod and the differential installation sleeve is larger than the thread pitch between the differential adjusting rod and the differential execution rod. The flow blocking piece is connected with the end, away from the driving piece, of the differential execution rod, and the flow blocking piece is used for being inserted into the through groove and used for adjusting the gap between the flow blocking piece and the lower die head. Fine adjustment of the flow blocking piece can be achieved, the precision of the adjusting mechanism of the coating die head is improved, and therefore the uniformity and consistency of the thickness of pole piece slurry are improved.