Preparation method of self-heating sheet

The invention provides a preparation method of a self-heating sheet. The preparation method comprises the following steps of: mixing self-heating raw materials into a pasty material in a batching device, conveying the pasty material to a forming device through a feeding device, enabling a transmission mechanism to drive a scraping mechanism to move on the forming device for scraping, and forming the pasty material on the conveying device through a group of forming holes in the forming device. According to the preparation method, the mixed heating sheet material can be directly prepared into arequired shape, so that the production link is shortened, the labor cost and the equipment cost are reduced, and the production efficiency is improved. 本申请提供了一种自发热片的制备方法，包括：在配料装置内将自发热原料混合成糊状料；通过送料装置将所述糊状料输送至成型装置；传动机构带动刮料机构在所述成型装置上运动进行刮料；所述糊状料通过所述成型装置上的一组成型孔在输送装置上成型。通过所述制备方法可将混合好的发热片材料直接制备成所需的形状，缩短生产环节，降低人工成本和设备成本，提高生产效率。