Inner container and manufacturing method of container with inner container
A manufacturing method and liner technology, which are applied in the field of container manufacturing, can solve the problems of product scrapping, affecting the yield of thermos cups, and inability to form a vacuum layer in thermos cups, so as to achieve the effects of improving sealing and improving structural stability.
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Embodiment 1
[0033] A kind of manufacturing method of liner, such as Figure 1 to Figure 3 shown, including the following fabrication steps:
[0034] Step 1, the metal sheet is processed to form a cylindrical outer layer liner 101 with an opening at one end and a bottom at the other end;
[0035] Step 2, after molding the inner liner 102, insert the mouth of the outer liner 101 into the outer liner 101 to form the inner liner body 1;
[0036] Step 3, processing the liner body 1 so that the inner wall of the outer liner 101 and the outer wall of the inner liner 102 are closely attached;
[0037] Step 4, shrinking the mouth of the liner body 1 . The outer layer liner 101 is integrally formed by stretching or formed by welding the outer layer cylinder and the outer bottom. After the inner layer liner 102 is put into the mouth of the outer layer liner 101, the outer layer liner 101 and the outer layer liner are processed. The inner layer liner 102 is tightly fitted and discharges the air be...
Embodiment 2
[0043] A kind of manufacturing method of liner, such as figure 1 , figure 2 as well as Figure 4 As shown, the outer liner 101 in step 1 includes an outer cylinder 1011 and an outer bottom 1012 , and the outer bottom 1012 is welded to the lower end of the outer cylinder 1011 . The molding method of the outer inner liner 101 is simplified, and the manufacturing cost of the outer inner liner 101 is reduced.
[0044] In step 1, the stainless steel plate, copper plate or aluminum plate is crimped to form the outer cylinder 1011, the curled butt joint of the outer cylinder 1011 is a longitudinal weld 2, and the longitudinal weld 2 extends longitudinally along the axis of the outer cylinder 1011 . The molding method of the outer cylinder body 1011 is simplified, and the processing efficiency of the outer cylinder body 1011 is improved.
Embodiment 3
[0046] A kind of manufacturing method of liner, such as Figure 5 and Image 6 As shown, the difference from Example 1 is that in step 2, the mouth of the inner liner 102 is necked after the inner liner 102 is formed, and then the mouth of the outer liner 101 is inserted into the outer layer. The liner body 1 is formed in the liner 101 .
[0047] In step 4, the outer liner 101 is necked. Insert the inner liner 102 after the necking process into the outer liner 101 for processing, and then perform shrinking processing on the mouth of the outer liner 101, so that the gap between the mouths of the inner liner 102 and the outer liner 101 is There is a gap between them, which simplifies the processing method of the inner tank body 1 mouth.
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