Internally hollow body, mold and method thereof
A technology for hollow bodies and molds, which can be applied to other household appliances, rigid containers, packaging, etc., and can solve problems such as waste, leakage of contents from opening holes, and long production time of hollow bodies.
Inactive Publication Date: 2020-02-07
法布里齐奥波里 +1
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, the hollow body and the method of manufacture described in this patent application have some disadvantages
The inner hollow body may suffer accidental breakage if subjected to certain loads and / or drop tests
In particular, in the event of a drop, one of the two half-shells will separate from the other half-shell and / or the connecting element due to the impact of the impact, resulting in the appearance of open holes and leakage of the contents
[0007] Moreover, the production time of the hollow body in the prior art is long and produces a lot of waste, which limits the efficiency and benefit of production
Method used
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Embodiment Construction
[0021] According to the attached figures, an internal hollow plastic body with an internal cavity 2 preferably suitable for containing liquid, solid or gaseous material is generally indicated at 1 .
[0022] The term "inside" means that the cavity 2 of the hollow body is the interior of the hollow body, that is to say, for example, that the hollow body has an inner surface at least partially delimiting the cavity, which is connected to at least partially the flow in the cavity. or the contained liquid, solid or gaseous material; and the outer surface of the hollow body, which is in contact with the external environment or, for example, with other elements contained in the cavity or different elements of the flow element. Internal hollow bodies of this type include, for example, ducts, channels, pipes or container bodies.
[0023] Said inner hollow body 1 comprises a main body 4 shaped to include a side wall 6 having an inner surface 8 at least partially delimiting said cavity ...
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A plastic, internally hollow body (1) has a cavity (2) for containing liquid, solid or gaseous material and comprises a shaped main body (4) and a closure body joined together by a joining element (20), overmolded to the main body (4) and to the closure body (14). A method for producing the internally hollow body (1) provides for joining the main body (4) and the closure body (14) in the same stepwherein a second closure body (14') and / or of a second main body to be used in a subsequent union step are molded to obtain a second internally hollow body. The internally hollow body (1) is molded by means of a mold (500) comprising punch impressions (511', 521', 531') and die impressions (511, 521, 531) and a movable shaped element (540) which engages with the punch or with the die and which ismovable to transfer the first main body (4) from a main die (531) or a punch impression (531') to a union impression of a die (511) or punch (511').
Description
technical field [0001] The invention relates to the manufacture of internal hollow bodies. In particular, the invention relates to a specific type of internal hollow body made of plastic, such as a container, a method for its manufacture and an associated mold suitable for use in the manufacture method. Background technique [0002] It is known in the art to manufacture plastic hollow containers designed to contain various liquid, solid or gaseous substances from various industrial sectors (food, chemical, pharmaceutical, etc.) by means of rotational molding or blow molding techniques. Examples of such containers include those designed to contain substances that cannot escape uncontrollably and therefore must have a closure system (screw cap, pressure cap, valve, etc.). [0003] Internal hollow bodies, such as the containers described above, and the corresponding known production techniques present several disadvantages. [0004] In the prior art, the internal hollow bodie...
Claims
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IPC IPC(8): B29C45/26B29C45/16B29C45/14B65D21/02
CPCB29C45/26B29C45/1615B29C45/14467B65D21/02B29C2045/2683B29C45/162B29C66/542B29C45/0062B65D11/10B65D21/0231B29L2031/7172B29C66/24244
Inventor 法布里齐奥·波里翁贝托·奈那
Owner 法布里齐奥波里