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Moulding die for multicolour moulding, method for moulding multicoloured moulded article, and multicoloured moulded article

A technology for forming molds and molded products, which can be used in household appliances, other household appliances, applications, etc., and can solve problems such as pits

Active Publication Date: 2013-09-18
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the molten resin is not completely filled in the air trapping part, and pits may be formed on the outer surface

Method used

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  • Moulding die for multicolour moulding, method for moulding multicoloured moulded article, and multicoloured moulded article
  • Moulding die for multicolour moulding, method for moulding multicoloured moulded article, and multicoloured moulded article
  • Moulding die for multicolour moulding, method for moulding multicoloured moulded article, and multicoloured moulded article

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0037] (structure)

[0038] Figure 1 to Figure 15 The first embodiment of the present invention is shown. figure 1 It is a top view of a multi-color molded product, for example, a two-color molded product 3, which is a resin molded product of this embodiment. figure 2 yes figure 1 Shown along the II-II line sectional view. in addition, Figure 5 It is a cross-sectional view of the entire two-color molding die (molding die) 50 for molding the two-color molded product 3 .

[0039] Such as figure 1 and figure 2 As shown, the two-color molded product 3 of this embodiment is formed by integrally forming the optical element 1 and the cylindrical adjacent member 2 through secondary molding. The optical element 1 and the adjacent member 2 are integral. The optical element 1 is, for example, an optical lens and is a primary molded part. The adjacent member 2 is a secondary molded portion that holds the optical element 1 . The optical element 1 is, for example, a lens havin...

no. 2 Embodiment approach

[0086] (structure)

[0087] Figure 16 , Figure 17 , Figure 18 , Figure 19 as well as Figure 20 The second embodiment of the present invention is shown. This embodiment is applied to molding of the distal end portion 406 of the endoscope 401 . Figure 16 An overall configuration of an endoscope 401 for observing the inside of a body cavity and performing diagnosis, treatment, and the like in the body cavity is shown. The endoscope 401 has an insertion portion 405 that is inserted into the patient's body cavity, and the insertion portion 405 is elongated and flexible. The insertion part 405 is connected to the operation part 407 by the proximal end of the insertion part 405 .

[0088] The insertion part 405 includes an elongated flexible tube part 405a, a bent part 405b connected to the tip of the flexible tube part 405a, and a rigid tip part 406 connected to the tip of the bent part 405b. The tip portion 406 is arranged at the tip of the insertion portion 405 . Th...

no. 3 Embodiment approach

[0114] (structure)

[0115] In addition, this invention is not limited to the said embodiment. In each of the above-mentioned embodiments, as the multi-color molded product, the figure 2 The two-color molded product shown 3, Figure 20 The shown application example of the two-color molded product 413 is not necessarily limited to the two-color molded product. For example, if Figure 22A and Figure 22B As shown in the third embodiment shown, the three-color molded product 501 can also be applied to a multi-color molded product of four or more colors, although not shown in the figure.

[0116] The three-color molded product 501 of this embodiment is formed by an integral body, such as an optical element (first molding part) 502 as an optical lens, a cylindrical lens holder as a lens holder for holding the optical element 502, etc., by multicolor molding. The colored outer peripheral portion (second molding portion) 503 and the ring-shaped intermediate layer (third molding...

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Abstract

Provided is a moulding die (50) for multicolour moulding, in which a second fixed die (200, 421) comprises a hollow-shaped part (201, 427) provided in a portion corresponding to optically functional surfaces (1a1, 1a2, 412a1, 412a2, 502a, 502b). The second fixed die (200, 421) further comprises an abutment part (201A, 427A) that comes into contact only with an optical element (1, 412, 502) other than the optically functional surfaces (1a1, 1a2, 412a1, 412a2, 502a, 502b).

Description

technical field [0001] The present invention relates to a molding die for multi-color molding that combines and integrates a plurality of different resins, a method for molding a multi-color molded product, and a multi-color molded product. Background technique [0002] In general, two-color molding refers to the following techniques. The optical element and adjacent members such as the frame member of the optical element are molded using two different resin materials so that the optical element and the adjacent members are integrated. For example, Patent Document 1 discloses an example of this two-color molding. In Patent Document 1, a primary molding die for primary molding of an optical member and a secondary molding die for secondary molding of an adjacent member are provided. In addition, the movable die of the primary molding die and the movable die of the secondary molding die can be used in common. Furthermore, the optical member is molded at one time in a cavity ...

Claims

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Application Information

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IPC IPC(8): B29C45/26A61B1/00B29C45/16B29C45/34G02B3/00G02B7/02G02B23/24B29L11/00
CPCB29D11/0073B29C45/162B29C2045/1682B29D11/0048G02B7/022G02B23/2423G02B23/2476Y10T428/24942
Inventor 大塚由孝菊森一洋羽鸟彰浩
Owner OLYMPUS CORP