Injection mould having function of automatic screw thread disassembly
An injection mold and automatic unloading technology, which is applied in the field of injection molds, can solve the problems such as the difficult demoulding of the threaded connection between the core and the workpiece, and achieve the effect of low demoulding difficulty and fast mold opening speed
Inactive Publication Date: 2016-07-13
CHONGQING FUXIN GLASS
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Problems solved by technology
[0003] In view of this, the purpose of the present invention is to provide an injection mold for automatic unthreading, so as to solve the problem that the threaded connection between the core and the workpiece is difficult to demould
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[0011] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0012] Such as figure 1 As shown, the injection mold for automatically unthreading in this embodiment includes a fixed platen 1, a movable platen 3, and a support plate 5 connected to the movable platen. The movable platen is also provided with a core 7 whose axis is parallel to the mold opening direction. , the front end of the core is provided with an external thread, the rear end of the core protrudes from the support plate, and the core rotates with the movable template and the support plate;
[0013] It also includes a bracket 6 and a distance screw 4 whose end is connected with the bracket and the other end is located in the movable template. The movable template is provided with a first through hole that slides and fits with the head of the distance screw. A second through hole is provided which slides with the screw part of the distance screw, ...
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The invention discloses an injection mould having a function of automatic screw thread disassembly. The injection mould comprises a fixed die plate, a movable die plate, a mounting plate, a core, the front end of which is provided with an external screw thread, a support, and a fixed-pitch screw, one end of which is connected to the support and the other end of which is located in the movable die plate. When the external screw thread arranged at the front end of the core has only one thread pitch in a workpiece, the head of the fixed-pitch screw abuts against the mounting plate. In the injection mould, a rear end of the core protrudes from the mounting plate and is in screw lever connection with an opening and closing die of the injection mould. When the die is open, a screw lever drives the core to rotate to make the screw thread located at the front end of the core exit the workpiece. When the screw thread of the core has one thread pitch in the workpiece, the head of the fixed-pitch screw abuts against the mounting plate, and when die opening continues, the fixed-pitch screw draws the mounting plate to quickly open a parting face, and the workpiece is taken out of a concave die, and if the die opening continues, the workpiece will be completely separated from the core and the concave die. The injection mould is high in die opening speed and low difficulty degree of core demoulding.
Description
technical field [0001] The invention relates to a mold, in particular to an injection mold for a threaded workpiece. Background technique [0002] For workpieces with threads, after injection molding, due to the threaded connection between the workpiece and the core, it is very difficult to demould the core. How to quickly demould the core has become a technical problem. Contents of the invention [0003] In view of this, the object of the present invention is to provide an injection mold for automatic unthreading, so as to solve the problem that the threaded connection between the core and the workpiece is difficult to demould. [0004] The injection mold for automatic thread unloading of the present invention includes a fixed platen, a movable platen, and a support plate connected with the movable platen. The movable platen is also provided with a core whose axis is parallel to the mold opening direction, and the front end of the core is provided with There are external...
Claims
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Inventor 陈雄
Owner CHONGQING FUXIN GLASS