Coating die head and coating machine
A coating die head may comprise: a coating main body comprising a first die head and a second die head arranged separately, the first die head and the second die head being spliced to define an accommodating cavity, and opposite ends of the coating main body being respectively provided with a coating inlet and a coating outlet which are in communication with the accommodating cavity; and a turbulence assembly which defines a flow channel with a cavity wall of the accommodating cavity, the turbulence assembly being adjustably arranged in the accommodating cavity.
1 . A coating die head, comprising:
a coating main body comprising a first die head and a second die head arranged separately, the first die head and the second die head being spliced to define an accommodating cavity, and opposite ends of the coating main body being respectively provided with a coating inlet and a coating outlet which are in communication with the accommodating cavity; and
a turbulence assembly which defines a flow channel with a cavity wall of the accommodating cavity, the turbulence assembly being adjustably arranged in the accommodating cavity,
wherein the turbulence assembly comprises at least one turbulence structure, which is arranged in the accommodating cavity in such a manner that the number of the at least one turbulence structure in the turbulence assembly is adjustable and/or the at least one turbulence structure each has a variable shape and/or an adjustable position; and
wherein the at least one turbulence structure comprises two or more turbulence structures; and the two or more turbulence structures comprise a turbulence base and at least one turbulence stack block, the turbulence base being fixed in the accommodating cavity, and the at least one turbulence stack block being detachably connected to the turbulence base,
wherein the at least one turbulence stack block comprises a plurality of turbulence stack blocks, which are detachably connected to the turbulence base, and at least some of the plurality of turbulence stack blocks are located upstream and/or downstream of the turbulence base in a slurry movement direction.
2 . The coating die head according to claim 1 , wherein the turbulence assembly has adjustable volume, shape and/or position; and/or
the turbulence assembly is arranged in the accommodating cavity in a replaceable manner.
3 . The coating die head according to claim 1 , wherein the turbulence base is of an I-shaped structure having two grooves for accommodating the turbulence stack blocks, the two grooves respectively facing the coating inlet and the coating outlet.
4 . The coating die head according to claim 1 , wherein the turbulence base abuts between the first die head and the second die head and is fixed.
5 . The coating die head according to claim 4 , wherein the first die head has a first abutting face, and the second die head has a second abutting face spaced apart from the first abutting face; and
the first abutting face and the second abutting face respectively abut with two end faces of the turbulence base.
6 . The coating die head according to claim 1 , wherein the accommodating cavity comprises a first portion and a second portion which are in communication with each other, the second portion being in communication with the coating inlet, the first portion being in communication with the coating outlet, the height of the first portion gradually decreasing from the end in communication with the second portion to the other end, and the turbulence base being fixed in the second portion; and/or
the accommodating cavity comprises a second portion and a third portion which are in communication with each other, the third portion being in communication with the coating inlet, the second portion being in communication with the coating outlet, the height of the third portion gradually decreasing from the end in communication with the second portion to the other end, and the turbulence base being fixedly arranged in the second portion.
7 . The coating die head according to claim 1 , wherein the turbulence assembly further comprises a fixing structure, the fixing structure penetrating and thus fixing the turbulence base and the at least one turbulence stack block.
8 . The coating die head according to claim 7 , wherein the turbulence assembly comprises at least two fixing structures members, each of the fixing structures penetrating the turbulence base and the at least one turbulence stack block in a replaceable manner; and
an end face of the fixing structure is not beyond an end face of the turbulence base and an end face of the at least one turbulence stack block.
9 . The coating die head according to claim 1 , wherein the coating inlet directly faces the coating outlet; and
turbulence assemblies are provided, and one of the turbulence assemblies faces both the coating inlet and the coating outlet in the arrangement direction of the coating inlet and the coating outlet.
10 . The coating die head according to claim 9 , wherein the coating inlet, the accommodating cavity and the coating outlet have first central axes coinciding with each other; and
one of the turbulence assemblies has a second central axis coinciding with the first central axis.
11 . The coating die head according to claim 1 , wherein the flow channel is branched into at least two sub-flow channels at the turbulence assembly, and the at least two sub-flow channels converge upstream of the coating outlet.
12 . A coating machine, comprising a coating die head of claim 1 .