A fixing mechanism for inserts in apg process
A technology of fixing mechanisms and inserts, applied in the direction of coating, etc., can solve the problems affecting product quality, product water pressure and other performance deviation from the design value, etc.
Active Publication Date: 2017-10-31
SHANGHAI ROX ELECTRIC
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Problems solved by technology
If there is no effective insert fixing mechanism to allow the insert to shrink freely, the product taken out of the mold will have a large residual stress around the insert, which will greatly affect the quality of the product
At present, the insert is fixed in the mold and cannot be moved, and the water pressure and other properties of the formed product seriously deviate from the design value, so there is an urgent need for a fixing mechanism that can shrink the insert freely to improve the electrical properties of the epoxy resin product. , to ensure the safe and reliable operation of the power product
Method used
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Embodiment Construction
[0021] The structure of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0022] Such as figure 1 , figure 2 and image 3 As shown, the fixing mechanism of an insert in an APG process provided by the present invention can be applied to the fixing of a mold insert in an APG process, and the mold includes an upper half-mold 12 and a lower half-mold 13, and the insert 11 has a first end ( figure 2 Not marked in) and the second end ( figure 2 Not marked in), wherein, the fixing mechanism includes:
[0023] The first fixed part, the first fixed part is passed through the upper half mold 12, which includes the first fixed block 2, the first movable block 14, the slider 1, and the first guide block 15, the first fixed block A fixed block 2 is provided with a chute ( figure 2 not shown); the slider 1 is located in the chute and can slide in the shrinking direction of the insert 11; one end of the first movable bl...
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The invention discloses a fixing mechanism for an insert in the APG technology. The fixing mechanism comprises a first fixing part and a second fixing part. The first fixing part comprises a first fixed block, a first movable block, a sliding block and a first guiding block. A sliding groove is formed in the first fixed block. The sliding block is located in the sliding groove and can slide in the contracting direction of the insert. One end of the first movable block is connected with the sliding block, and the other end of the first movable block abuts against the first end of the insert. One end of the first guiding block is connected with the insert, and the other end of the first guiding block is fixed to the first movable block. The second fixing part comprises a second fixed block, a second movable block, a limiting block and a second guiding block. The second fixed block is of a cylindrical structure. The limiting block is arranged at one end of the second fixed block, and the other end of the second fixed block is used for the second movable block to be inserted. One end of the second movable block abuts against the limiting block, and the other end of the second movable block abuts against the insert. One end of the second guiding block is connected with the second end of the insert. Compared with the prior art, the fixing mechanism for the insert in the APG technology is applied to the APG technology so that the insert can be positioned in a die, and the insert can contract freely after being positioned.
Description
technical field [0001] The invention relates to a mold assembly in the field of injection molding, in particular to a fixing mechanism for an insert in an APG process. Background technique [0002] The APG process refers to the automatic pressure gel process of epoxy resin, that is, the process of heating epoxy resin to make it thermoset. At present, almost all insulation products of high-voltage electrical equipment have inserts; the positioning structure of inserts in the mold is crucial. [0003] Due to the requirements of the molding process, the mold must undergo secondary curing for a certain period of time after the casting is completed. During the secondary curing process, the inserts fixed in the mold will be affected by the contraction force of the epoxy resin and generate great stress. If there is no effective insert fixing mechanism to allow the insert to shrink freely, the product taken out of the mold will have a large residual stress around the insert, which ...
Claims
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IPC IPC(8): B29C45/14
CPCB29C45/14065
Inventor 徐元贵
Owner SHANGHAI ROX ELECTRIC