A bottom blowing device for plastic hollow containers of a blow molding machine belongs to the technical field of hollow plastic product molding machinery. It comprises a supporting base with a push plate lifting cavity, the upper part of which is connected with a guide sleeve base with a guide sleeve base cavity; a bottom blowing base with a bottom blowing base cavity, the lower front and rear sides of which are connected with the tops of guide posts, and the middle front and rear sides are respectively provided with bottom blowing base hanging lugs. A bottom blowing base lifting driving mechanism is connected with the bottom of the guide sleeve base and fixed with the bottoms of the guide posts. Left and right blowing needle mechanisms are arranged in the bottom blowing base cavity. A first acting cylinder is horizontally arranged at the lower right part of the bottom blowing base, and its first acting cylinder column faces the left blowing needle mechanism and is connected with it. A second acting cylinder is horizontally arranged at the lower left part of the bottom blowing base, and its second acting cylinder column faces the right blowing needle mechanism and is connected with it. It meets the blowing molding process requirements for parisons; reduces labor intensity; improves blowing molding efficiency; avoids thread damage and chipping.
Country Code: CN
Application Number: CN201620712268.2
