Box filling machine and box filling method

A box filling machine comprises a first conveying channel, a second conveying channel and a third conveying channel which are in butt joint in sequence, the conveying direction of the first conveying channel is parallel to the conveying direction of the third conveying channel and perpendicular to the conveying direction of the second conveying channel, and a box filling station is arranged at the end, close to the first conveying channel, of the second conveying channel. The boxing station is provided with a box feeding device, a lower partition plate putting device used for upwards rotating the side vertical partition plates to be in the horizontal state and a boxing mechanical arm used for putting the products and the partition plates into boxes, the third conveying channel is provided with an upper hinge closing station and a box sealing station, and a box pushing mechanism is arranged between the boxing station and the box sealing station. The boxing method comprises the steps that a lower partition plat