| 摘要 |
An elevating and unilateral locking linkage for a bottom mould is provided in the invention. The linkage comprises an elevating assembly and a positioning assembly (3). The elevating assembly comprises an elevating rod (12) disposed on the machine frame (2), the bottom mould (1) is mounted on an upper end of the elevating rod (12), and the elevating rod (12) is driven by a driving assembly (4) to elevate. The driving assembly (4) comprises a rotate shaft (5) rotatably connected on the machine frame (2), a cam (6) fixed on the rotation shaft (5) and a sliding part (13) mounted on the elevating rod (12), a first sliding groove (8) is opened on the cam (6), and the sliding part (13) is slidably inserted into the first sliding groove (8). In the course of rotation of the rotation shaft (5), the contact position of the first sliding groove (8) with the sliding part (13) rises or descends. The positioning assembly comprises a sliding block (31), a swing member (35) for driving the movement of the sliding block (31) and a rotation member (7) fixed on the rotation shaft (5) for controlling the swinging of the swing member (35). The linkage has at least two work positions, in the first work position, there is a certain distance between the bottom mould (1) and the machine frame (2), and the sliding block (31) is inserted between the bottom mould (1) and the machine frame (2) and contacts against the bottom mould (1), in the second working position, the sliding block (31) is separated from the bottom mould (1). In the invention, the linkage of bottom mould (1) elevating and positioning is achieved by a power source, this can save energy and reduce the volume of the whole device. |
