在管模制作中,企口板合口的连接方法一般有两种:一种是在企口板上钻孔,用螺栓螺母连接;另一种是在企口板上开槽,用跌倒螺栓连接。这两但容易引起企口板(特别是螺栓连接处)变形。随着使用时间的延长,变形量增加,从而引起筒体接合处缝隙增大,使管体制作时跑浆越加严重。而使用前者,虽然企口板变形较小,使用寿命较长,但操作不便,而且因螺栓时常丢失,需要配备很多备件。因此,我们提出了一种设想,即采用图1的连接形式, In the production of pipe moulds, there are generally two types of connection methods for the gauge plate joints: one is to drill holes in the gusset plate and connect them with bolts and nuts; the other is to grooving the gusset plate and connecting with falling bolts. . These two but easily lead to deformation of the plate (especially bolted joints). With the prolonged use of time, the amount of deformation increases, resulting in an increase in the gap at the joint of the cylinder, making the slurry run more severe when the pipe body is manufactured. However, the use of the former, although the plate is deformed slightly and has a long service life, it is inconvenient to operate, and because the bolt is often lost, many spare parts are required. Therefore, we propose an idea that uses the connection form of Figure 1,