| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection molder capable of reducing cost of a sensor.SOLUTION: The invention relates to an injection molder (1) capable of moving forward, and backward, an injection device (3) by a drive mechanism (16) having a spring body (27). The spring body (27) is compressed when an injection nozzle contacts a mold, and touch force is generated. A magnetostriction displacement sensor (29) is provided on the injection molder (1). The magnetostriction displacement sensor (29) comprises: one wave guide (30) fixed to a mold platen; first and second magnets (31, 32); and a detection part (33) for detecting positions of the first and second magnets (31, 32) on the wave guide (30). The forward and backward movement positions of the injection device (3) are detected by the first magnet (31), and compression of the spring body is detected by the second magnet (32).SELECTED DRAWING: Figure 1 |
