A structure of honeycomb paper expanding machine, the expanding machine being adapted to expand or stretch a honeycomb paper, the honeycomb paper includes a plurality of connecting portions and a plurality of cutoff portions, the expanding machine mainly comprising:
- a chassis;
- a feeding roller, which is rotatably mounted at an end of the chassis and is provided for bear and support the honeycomb paper;
- a guiding roller, which is rotatably mounted to the chassis and is arranged at one side of the feeding roller;
- an expansion roller assembly, which is rotatably mounted to the chassis and is arranged at one side of the guiding roller that is opposite to the feeding roller, wherein the expansion roller assembly comprises an upper expansion roller, a lower expansion roller arranged on one side of the upper expansion roller and rotatable in a direction opposite thereto, and a passage gap formed between the upper expansion roller and the lower expansion roller;
- a plurality of first upper projection assemblies, which are arranged in a manner of circumferentially surrounding and mounted to the upper expansion roller at intervals in an axial direction, wherein the first upper projection assemblies each comprise a plurality of first upper projecting portions arranged in a manner of being spaced from each other in a longitudinal direction, and a plurality of first upper supporting portions arranged alternate with respect to the first upper projecting portions;
- a plurality of second upper projection assemblies, which are arranged in a manner of circumferentially surrounding and mounted to the upper expansion roller at intervals in an axial direction and are arranged alternate with respect to the first upper projection assemblies, wherein the second upper projection assemblies each comprise a plurality of second upper projecting portions arranged in a manner of being spaced from each other in a longitudinal direction and are located at one side of each of the first upper supporting portions, and a plurality of second upper supporting portions arranged alternate with respect to the second upper projecting portions and are located at one side of each of the first upper projecting portions;
- a plurality of first lower projection assemblies, which are arranged in a manner of circumferentially surrounding and mounted to the lower expansion roller at intervals in an axial direction, wherein the first lower projection assemblies each comprises a plurality of first lower projecting portions arranged in a manner of being spaced from each other in a longitudinal direction, and a plurality of first lower supporting portions are arranged alternate with respect to the first lower projecting portions;
- and
- a plurality of second lower projection assemblies, which are arranged in a manner of circumferentially surrounding and mounted to the lower expansion roller at intervals in an axial direction and are arranged alternate with respect to the first lower projection assemblies, wherein the second lower projection assemblies each comprises a plurality of second lower projecting portions arranged in a manner of being spaced from each other in a longitudinal direction and are located at one side of each of the first lower supporting portions, and a plurality of second lower supporting portions arranged alternate with respect to the second lower projecting portions and are located at one side of each of the first lower projecting portions;
- wherein the expansion roller assembly, during rotation, is operable such that the first upper projecting portions and the first lower supporting portions that are located at one side of the passage gap are set to correspond, in position, to each other;
- the second upper projecting portions and the second lower supporting portions that are located at one side of the passage gap are set to correspond, in position, to each other;
- the first lower projecting portions and the first upper supporting portions that are located at one side of the passage gap are set to correspond, in position, to each other;
- and the second lower projecting portions and the second upper supporting portions that are located at one side of the passage gap are set to correspond, in position, to each other;
- wherein the first upper projection assemblies and the second upper projection assemblies are arranged on at least one first fitting joint portion, and the first lower projection assemblies and the second lower projection assemblies are arranged on at least one second fitting joint portion.