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Method for manufacturing hollow article

一种制造方法、中空的技术，应用在中空物品、其他家里用具、家里用具等方向，能够解决制造工序妨碍等问题，达到前置时间缩短、数目均匀的效果

Inactive Publication Date: 2018-07-31
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the density at the time of obtaining the hollow product is generated in this way, there is a possibility of hindering the subsequent manufacturing process using the hollow product.

Method used

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  • Method for manufacturing hollow article

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Experimental program
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Effect test

no. 1 approach

[0031] refer to figure 1 ˜ FIG. 7 , the manufacturing method according to the first embodiment will be described. This manufacturing method is a method of manufacturing the hollow product P mentioned later. The hollow product P is a member in which a space P0 is formed. The hollow product P uses an air flow meter for measuring the flow rate of air, and the air to be measured flows inside.

[0032] figure 1 It is a perspective view which shows the molding apparatus 10 used for the manufacturing method which concerns on this 1st Embodiment. The forming device 10 has a table 21 , a nozzle 23 , three sets of movable dies 30 and fixed dies 40 , and two inner dies 50 .

[0033] The table 21 is a flat member whose thickness direction is a vertical direction. A rotation shaft 22 extending vertically is provided at the lower portion of the table 21 . The rotary shaft 22 rotates in the direction shown by the arrow RT by the drive of the actuator not shown, and the table 21 also ro...

no. 2 approach

[0106] Next, refer to Figure 8 , Figure 9A as well as Figure 9BThe manufacturing method according to the second embodiment will be described. The manufacturing method according to the second embodiment is the same as the manufacturing method according to the first embodiment. First, the pair of split bodies are formed, and then the pair of split bodies are joined to form a hollow product. The manufacturing method according to the second embodiment uses a molding apparatus 100 different from the molding apparatus 10 used in the manufacturing method according to the first embodiment. The same reference numerals are assigned to the same configurations of the molding apparatus 100 as those of the molding apparatus 10 as appropriate, and description thereof will be omitted.

[0107] Figure 8 It is a perspective view showing the forming apparatus 100 used in the manufacturing method according to the second embodiment. The forming apparatus 100 has a table 21 , a nozzle 23 ,...

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Abstract

A method for manufacturing a hollow article includes a first molding step and a second molding step performed alternately and repeatedly with a moving step interposed therebetween. In the first molding step, a resin is injected between a first mold (31, 310) and a second mold (41, 410) arranged at an injection station (11) and die-matched without sandwiching an inner mold (50, 50A, 50B, 50C) therebetween to bond a pair of divided bodies (P1, P2) together. In the second molding step, a resin is injected between the first mold and the second mold arranged at the injection station and die-matchedwith the inner mold sandwiched therebetween to mold a pair of divided bodies, a hollow article is extracted from between the first mold and the second mold arranged at an extraction station, and theinner mold is extracted with the pair of divided bodies remaining between the first mold and the second mold arranged at a set-up station.

Description

[0001] This application claims the priority of Japanese Patent Application No. 2015-225734 filed on November 18, 2015, and uses the entire content here. technical field [0002] The present disclosure relates to a method of manufacturing a hollow product by first molding a pair of split bodies and then joining the pair of split bodies to form a hollow product using three sets of a first die, a second die, and an inner die. Background technique [0003] As a method of manufacturing a hollow product in which a space is formed, a method of obtaining one hollow product from a pair of divided bodies is known. In such a manufacturing method, the injection of the resin into the mold is generally performed in two steps. [0004] For example, the manufacturing method described in the following patent document 1 is also called mold slide injection. In this manufacturing method, first, a pair of divided bodies is molded by performing the first injection of resin between the clamped mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/16B29C33/34B29C45/06B29C45/26
CPCB29C45/06B29L2022/00B29C2045/14524B29C2045/1617B29C45/1615B29C2045/067B29C2045/0072B29C45/0062B29C45/32
Inventor 冈部沙也佳荒井毅石亩学
Owner DENSO CORP
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