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Manufacturing method of foaming mold and sound-proof cover of high-pressure oil pump
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A foaming mold and manufacturing method technology, applied in the field of auto parts manufacturing, can solve the problems of unstable quality, low production efficiency, falling off, etc., and achieve the effects of convenient and reliable operation, improving production efficiency and saving time
Active Publication Date: 2018-12-04
武汉泰宇汽车零部件有限公司
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This method has the following disadvantages: (1) low production efficiency
(2) The quality is unstable. Due to the adhesive structure, the soundproof cover of the high-pressure oil pump is easy to fall off from the cover of the high-pressure oil pump.
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Embodiment 1
[0025] Such as figure 1 with figure 2 , this embodiment relates to a foaming mold, including an upper mold 1 and a lower mold 2, the top of the lower mold 2 is provided with at least one groove 201 for embedding an oil pump cover, and the bottom of the lower mold 2 is provided with An inflatable airbag (not shown in the figure) that vertically lifts the lower mold 2; at least one core 101 is correspondingly provided at the bottom of the upper mold 1, and when the upper mold 1 and the lower mold 2 are closed, Each core 101 enters into the oil pump cover embedded in the corresponding groove 201, a molding space is formed between the core 101 and the corresponding oil pump cover, and the top of the upper mold 1 A feeding mechanism is provided to supply materials to each of the molding spaces when the mold is closed; multiple water pipes (not shown in the figure) are uniformly arranged in the upper mold 1 and the lower mold 2, and each of the The inlet ends of the water pipes a...
Embodiment 2
[0030] The embodiment of the present invention relates to a method for manufacturing a sound-proof cover of a high-pressure oil pump, using the above-mentioned foaming mold, including the following steps:
[0031] Step 1, an oil pump cover is embedded in each of the grooves 201 of the foaming mold.
[0032] Step 2, inflating the inflatable air bag to close the upper mold 1 and the lower mold 2; in this step, the inflation pressure is controlled to be 0.2-0.25 MPa.
[0033] Step three, lock the mold.
[0034] Step 4, pouring, injecting foaming material into each of the molding spaces through the feeding mechanism.
[0035] Step 5, control the foaming time, and control the foaming temperature by supplying hot water to each water pipe; after the foaming time is up, deflate the inflatable air bag and open the mold. The foaming time is controlled at about 6 minutes / mould.
[0036] Wherein, in step 1, hot water can be supplied to each water pipe, so that the upper mold 1 and the ...
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Abstract
The invention relates to a foaming mold. The foaming mold comprises an upper mold body and a lower mold body. At least one groove where an oil pump cover is embedded is formed in the top of the lower mold body, and an inflatable airbag for enabling the lower mold body to vertically ascend and descend is arranged at the bottom of the lower mold body; and at least one core is correspondingly arranged at the bottom of the upper mold body. When the upper mold body and the lower mold body are assembled, each core enters the oil pump cover embedded into the corresponding groove, molding space is formed between the cores and the corresponding oil pump covers, and a feeding mechanism for feeding materials to the molding space during assembling is arranged at the top of the upper mold body; and the upper mold body and the lower mold body are each internally provided with a plurality of water pipes, the inlet ends of the water pipes are communicated with a water source, and the water source is connected with a water temperature control mechanism. In addition, the invention provides a method for manufacturing high-pressure oil pump noise insulation covers through the foaming mold. According to the mold, the foaming high-pressure oil pump noise insulation covers can be formed on the inner surfaces of the oil pump covers in a pouring manner, connecting structures between the oil pump covers and the foaming high-pressure oil pump noise insulation covers are stable, the foaming high-pressure oil pump noise insulation covers are not prone to falling from the oil pump covers, and the quality of products is effectively improved.
Description
technical field [0001] The invention belongs to the technical field of auto parts manufacturing, and in particular relates to a foaming mold for manufacturing a high-pressure oil pump sound-insulating cover and a method for manufacturing the high-pressure oil pump sound-insulating cover. Background technique [0002] The high-pressure oil pump for automobile needs to be covered with a soundproof cover because of its high noise. At present, the manufacturing method of the sound-proof cover of the high-pressure oil pump for automobiles is as follows: the cover of the high-pressure oil pump and the sound-proof cover of the high-pressure oil pump are glued together with a flat sealant 5910. This method has the following disadvantages: (1) Low production efficiency. (2) The quality is not stable. Due to the adhesive structure, the soundproof cover of the high-pressure oil pump is easy to fall off from the cover of the high-pressure oil pump. Contents of the invention [0003]...
Claims
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Application Information
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