The new model relates to a steel bar breaking machine.The tendon breaking machine comprises a storage platform, a puncture device and a driving device.The storage desk is used to store meat products.The puncture device has a first plate body, a plurality of needle bodies and a second plate body, the needle bodies are arranged on the first plate body, the second plate body has a plurality of holes, the positions of the holes are relative to the needle bodies, the needle bodies pass through the holes, and stab into the meat food to cut the muscle of the meat food.The driving device is used to drive the puncture device to move.The new type of broken tendon machine can save the processing time of meat food and improve the processing efficiency.Moreover, the new type of steel bar breaking machine is easy to operate and safe.本新型係關於斷筋機。該斷筋機包括：一置物台、一穿刺裝置及一驅動裝置。該置物台用以置放肉類食品。該穿刺裝置具有一第一板體、複數個針體及一第二板體，該等針體設置於該第一板體，該第二板體具有複數個孔洞，該等孔洞之位置係相對於該等針體，該等針體穿過該等孔洞，且刺入肉類食品，以切斷肉類食品之筋。該驅動裝置用以驅動該穿刺裝置移動。利用本新型之斷筋機可節省肉類食品之處理時間，增進處理效率。並且，本新型之斷筋機操作簡易且安全。
