2results about How to "Good molding precision" patented technology

The present application relates to the field of construction technology for building expansion joints, and in particular to a synchronous construction device for expansion joint positions and a method for using the device, which includes side templates corresponding to both sides of the expansion joint, two forming templates arranged between the two side templates, and a number of connecting mechanisms for connecting the two forming templates, wherein the side templates are parallel to the forming templates, and the outer walls of the two forming templates facing each other are fixedly connected with a number of vertically distributed fixed rails; the connecting mechanism includes two connecting rails and a number of connecting pipes, wherein the connecting rails are horizontally arranged and connected to the fixed rails by sliding along the length direction, and the connecting pipes are distributed along the length direction of the connecting rails, and the two ends of the connecting pipes are respectively threadedly connected to the two connecting rails; the forming template is provided with a number of fastening mechanisms for connecting the side templates, and the fastening end of the fastening mechanism connected to the forming template is plugged into the connecting pipe. The present application can optimize the forming accuracy of the expansion joint while performing synchronous construction of the expansion joint position in a limited space.

The utility model belongs to 3D printing technical field discloses a kind of high-temperature 3D printers of printable PEEK material, including mobile spray head assembly, box body assembly, lift printing platform, control system, frame, the mobile spray head assembly is installed at the top of box body assembly, the mobile spray head assembly includes printing spray head, wire-feeding mechanism and X axis, Y axis horizontal direction moving part, the outside of printing spray head is provided with water-cooling heat dissipation pipe cover, the wire-feeding mechanism is installed above printing spray head, and the printing spray head is installed on the printing spray head support of X axis, Y axis horizontal direction moving part.The utility model designs the heat preservation cavity of airtight, heating element and air supply element are configured in heat preservation cavity, can manufacture circulating heat flow in cavity, ensure that the heat distribution of printing piece near in cavity is uniform, temperature is reasonable controllable, alleviate temperature gradient phenomenon when printing piece cooling, so that printing piece obtains better forming precision and mechanical property.