Mixing device for glue injection equipment

The invention discloses a mixing device for glue injection equipment. The mixing device comprises a sleeve, wherein a central spindle of which two ends are conical is arranged in the sleeve; multiple spiral sleeves and multiple separation discs with disc seats are arranged on the central spindle at intervals in a sleeving manner; end covers are respectively and fixedly arranged at two ends of the sleeve by virtue of bolts; sealing rings are arranged in the end covers; a conical hole matched with the end of the central spindle is formed in one end of each end cover; a threaded hole which is communicated with the conical hole and is connected with a feeding joint is formed in the other end of each end cover; and the conical structures in the two ends of the central spindle are clamped in the conical holes of the end covers, and a certain gap is formed between the conical structures. The feeding joint is connected with a raw material conveying pipe for conveying the raw materials, multiple spiral groove structures are formed in the peripheral surfaces of the spiral sleeves, and colloidal substances can be fully stirred in the process of mixing the colloidal substances, so that the colloidal substances can be uniformly stirred, and the defect oflong traveland large stirring spaceof the mixer for the glue injection equipment in the prior artis overcome.