Hollow ball, mold for manufacturing hollow ball and method for manufacturing hollow ball
A hollow ball and mold technology, applied in the field of mechanical parts, can solve problems such as product failure, hollow ball cracking or degumming, and achieve the effect of improving strength
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Embodiment 1
[0045] The purpose of this embodiment is to provide a hollow ball, which does not have a bonding seam, and thus can effectively avoid the problem of easy degumming and cracking of the hollow ball in the prior art due to the existence of a bonding seam, specifically ;
[0046] See figure 1 , including a liner 1 and a shell 2 covering the liner 1, wherein the liner 1 is set as a hollow spherical structure, and the shell 2 is integrally formed.
[0047] It should be noted that the hollow ball provided in this embodiment is widely used in the following equipment such as highly corrosive pipelines, anti-corrosion pools, pump valves and other equipment to play a role in sealing and protecting. Since the inner liner 1 is provided, the inner liner 1 can effectively improve the strength of the hollow ball, so that the hollow ball can bear strong external pressure. And because the hollow ball provided by the present invention is integrally formed, there is no bonding seam, so in a hig...
Embodiment 2
[0051] The purpose of this embodiment is to provide a mold for making hollow balls, specifically,
[0052] Please also see figure 2 , image 3 and Figure 4 , including: outer mold 3, upper mold 4, lower mold 5, auxiliary mold 6 and positioning mechanism.
[0053] Wherein, the outer mold 3 is set as a cylindrical structure, the inner cavity of the outer mold 3 is set as a mold cavity, and the upper mold 4 and the lower mold 5 are detachably arranged on the upper and lower parts of the mold cavity; the auxiliary mold 6 is sleeved outside the outer mold 3 To position the outer mold 3; the positioning mechanism is arranged along the circumferential direction of the outer mold 3 to abut and position the inner container 1.
[0054] The spherical space formed by the upper mold 4 and the lower mold 5 is the molding space of the hollow ball. The auxiliary mold 6 is set outside the outer mold 3 to stably fix the outer mold 3 and avoid the hollow space caused by the displacement of ...
Embodiment 3
[0064] The purpose of this embodiment is to provide a method for making hollow spheres, using the mold for making hollow spheres disclosed in Example 2. In order to save space, the relevant technical features of the mold for making hollow spheres disclosed in Example 2 are here The description will not be repeated, including the following steps:
[0065] in particular,
[0066] Step S1, blank manufacturing process:
[0067] Step S11, the first feeding: the lower mold 5 is put into the mold cavity of the outer mold 3, the raw material of the outer shell 2 is added into the mold cavity, the inner liner 1 is put into the mold cavity, and the center of the inner liner 1 is positioned at the On the central axis of the mold cavity;
[0068] Step S12, the first rotation: rotate the outer mold 3 around the central axis of the outer mold 3, so that the raw materials of the shell 2 are evenly distributed around the liner 1;
[0069] Step S13, secondary feeding: add another half of th...
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