Plastic blow molding die
A blow molding and molding die technology, applied in the field of models used in plastic blow molding, can solve the problems of reducing the quality of molded products, elastic recovery deformation, etc., and achieve the effects of reducing product defective rate, avoiding elastic recovery deformation, and simple operation.
Inactive Publication Date: 2018-04-06
宁波得晴电器科技有限公司
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Problems solved by technology
[0004] However, there are the following problems in the above patents: after the blow molding is completed, there is no cooling process, and the molded product is directly ejected, which will cause elastic recovery deformation of the finished product after demoulding, thereby reducing the quality of the molded product
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[0019] The present invention will be described in further detail below by means of specific embodiments:
[0020] The reference signs in the drawings of the description include: frame 1, fixed mold 2, movable mold 3, forming mold 4, chute 5, screw rod 6, injection port 7, core mold 8, ventilation channel 9, spring 10, molding cavity 11 , cold air channel 12, temperature sensor 13, cold air box 14, bellows 15, slider 16.
[0021] like figure 1 and figure 2 As shown, the plastic blow molding mold includes a frame 1, a fixed mold 2, a movable mold 3 and a forming mold 4, the fixed mold 2 is welded on the frame 1, and there are two forming molds 4, and the two forming molds 4 are The central axis of the fixed mold 2 is axisymmetrically slidably connected to the frame 1. The frame 1 is threaded with a screw 6, the lower end of the screw 6 is welded to the movable mold 3, the movable mold 3 has an injection port 7, the bottom of the movable mold 3 has a cavity, and the periphera...
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The invention belongs to the technical field of models used for plastic blow molding and in particular relates to a plastic blow molding die. The plastic blow molding die comprises a rack, wherein a fixed die is fixedly arranged on the rack, a mandrel is fixedly arranged at the middle part of the fixed die, a forming die is axisymmetrically arranged at the two sides of the fixed die, the forming die is slidably connected with the rack, a vent hole is formed in the mandrel, a ventilation channel is formed in the mandrel, the ventilation channel is communicated with the vent hole, the rack is inthreaded connection with a screw, one end of the screw is coaxially connected with a moving die, an injection molding hole and a cavity which can be inserted by the mandrel are formed in the moving die, a spring is connected between the forming die and the moving die, a forming cavity is formed in the forming die, a cool air channel and a temperature sensor are arranged outside the forming die, acool air box is also arranged on the rack, the cool air box is communicated with the cool air channel, and the temperature sensor is used for controlling the cool air box to be opened and closed. Byadopting the plastic blow molding die provided by the invention, a molded product after blow molding is completed can be cooled in the die, and the plastic blow molding die provided by the invention is mainly applied to plastic blow molding.
Description
technical field [0001] The invention belongs to the technical field of molds used in plastic blow molding methods, and in particular relates to a plastic blow molding mold. Background technique [0002] In the molding process of plastic blow molding products, the traditional process adopts the extrusion-blow molding method. The product produced by this method has irremovable protruding cracks on the surface of the product, making the surface of the product unattractive and smooth. And it is inevitable that there will be redundant scraps, which will cause waste of production raw materials and increase the cost of product molding at the same time. [0003] For this reason, disclose a kind of mold of directly injecting, blowing plastic hollow container molding product among the Chinese patent CN100467252C. Including injection mold assembly and blow molding assembly; injection mold assembly includes movable mold and fixed mold arranged in the up and down direction, and the ope...
Claims
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IPC IPC(8): B29C49/48B29C49/70B29C49/64B29C49/06
CPCB29C49/06B29C49/48B29C49/64B29C49/70B29C2049/023
Inventor 孙文清
Owner 宁波得晴电器科技有限公司