The invention discloses a novel rubber material device. The novel rubber material device comprises a rack body. The rack body is internally provided with a front-back through concaved cavity with an upward opening. The bottom wall of the concaved cavity is internally provided with a first sliding cavity which extends leftwards and rightwards. A first knife groove communicating with the first sliding cavity and the concaved cavity is formed between the first sliding cavity and the concaved cavity and extends leftwards and rightwards. The first sliding cavity is internally provided with a firstsliding block which can slide leftwards and rightwards. The left side in the bottom wall of the first sliding cavity is provided with a groove. The right side of the groove is provided with a first oblique face. The right side of the lower end face of the first sliding block is provided with a second oblique face coordinating with the first oblique face. The left end wall and the right end wall ofthe first sliding cavity are internally provided with a second sliding cavity and a third sliding cavity which extend up and down. The second sliding cavity is internally provided with a second sliding block which slides up and down, and the third sliding cavity is internally provided with a third sliding block which slides up and down. The first sliding block is internally provided with a firstleft-right through thread groove, and the first thread groove is internally provided with a first threaded rod in a thread fit manner.