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Mold structure with elimination of inlay lines

A mold and mosaic technology, which is applied in the field of mold structures with the elimination of mosaic lines, can solve the problems of limited processing costs of injection molded parts, high processing costs, restrictions on the application of 3D printing technology, and high costs, and achieve the effect of optimizing cooling efficiency

Active Publication Date: 2019-05-07
SICHUAN CHANGHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, at present, the cost of processing injection molds with conformal cooling channels using 3D printing technology is quite high, and the single-piece processing cost of injection molded parts reduced by shortening the cooling time is limited. Generally, more than hundreds of thousands of pieces need to be produced to recover the processing of 3D printing. High cost and high processing cost limit the application of 3D printing technology in molds

Method used

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  • Mold structure with elimination of inlay lines
  • Mold structure with elimination of inlay lines
  • Mold structure with elimination of inlay lines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 , figure 2 Shown, a kind of mold structure that has eliminated inlaid mosaic line, comprises mold 11, and mold 11 has mold clamping plane, as figure 1 As shown, the mold 11 is a convex mold, and the clamping plane of the mold 11 is recessed inwardly with an inlay cavity, and an inlay piece 13 is closely fitted in the inlay cavity of the mold 11, and the inlay piece 13 is relatively opposite to the mold 11. The mold clamping plane protrudes outwards to form a punch, and the contact part of the mosaic piece 13 and the mosaic cavity of the mold 11 forms a mosaic line 14 . A mold cooling waterway 12 is opened inside the mold 11 , and a conformal cooling waterway 15 communicated with the mold cooling waterway 12 is opened inside the insert piece 13 . The inlaid piece 13 and its conformal cooling waterway 15 in this embodiment are processed by additive manufacturing, and the composition of the metal powder is the same as that of the mold steel of the mold ...

Embodiment 2

[0031] Such as image 3 Shown, a kind of mold structure that has eliminated inlaid mosaic line, comprises die 21, and die 21 has clamping plane, as image 3As shown, the concave mold 21 is a concave mold, and the clamping plane of the concave mold 21 is recessed inwardly with an inlay cavity, and an inlay piece A23 is closely fitted in the inlay cavity of the concave mold 21, and the inlay piece A23 is opposite The mold clamping plane of the die 21 is recessed inwardly to form a die, and the contact part of the insert A23 and the insert cavity of the die 21 forms an insert line A24. There is a mold cooling waterway A22 inside the die 21, and a conformal cooling waterway A25 connected with the mold cooling waterway A22 is opened inside the insert piece A23. The inlaid piece A23 and its conformal cooling waterway A25 of this embodiment are processed by additive manufacturing, and the composition of the metal powder is the same as that of the die steel of the die 21, or the inla...

Embodiment 3

[0034] Such as Figure 4 Shown, a kind of mold structure that has to eliminate inlaid mosaic line, comprises punch 31, and punch 31 has clamping plane, as image 3 As shown, the punch 31 is a punch, and the clamping plane of the punch 31 is recessed inwardly with an inlay cavity, and an inlay piece B33 is closely fitted in the inlay cavity of the punch 31, and the inlay piece B33 is opposite The mold clamping plane of the punch 31 protrudes outward to form a punch, and the contact part between the insert piece B33 and the insert cavity of the punch 31 forms an insert line B34. There is a mold cooling waterway B32 inside the punch 31, and a conformal cooling waterway B35 connected with the mold cooling waterway B32 is opened inside the insert piece B33. The inlaid piece B33 and its conformal cooling waterway B35 of this embodiment are processed by additive manufacturing, and the composition of the metal powder is the same as that of the die steel of the punch 31, or the inlaid...

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Abstract

The invention discloses a mould structure provided with an eliminating splicing line. The mould structure comprises a mould, wherein the mould is provided with a mould clamping plane, the mould clamping plane of the mould is sunken inward to form a splicing cavity, a splicing piece is mounted in close fit in the splicing cavity of the mould, and a contact part of the splicing piece and the splicing cavity of the mould forms a splicing line; a mould cooling water circuit is formed in the interior of the mould, and a conformal cooling water circuit communicated with the mould cooling water circuit is formed in the interior of the splicing piece; the mould clamping plane of the mould is sunken at a splicing line position and a groove is formed, the groove is in central symmetry relative to the splicing line, the groove comprises a small groove and a big groove arranged above the small groove, the small groove is arranged between the edge of the splicing piece and the edge of the mould, the big groove is arranged between the edge of the splicing piece and the edge of the mould, and the big groove and the small groove are communicated. The mould structure disclosed by the invention can avoid influence of the splicing piece on apparent quality of an injection moulded plastic part, and the conformal cooling water circuit also can be introduced for optimizing cooling efficiency of the splicing piece.

Description

technical field [0001] The invention relates to the field of mold design and processing, in particular to a mold structure capable of eliminating inlay lines. Background technique [0002] The mold is designed and processed according to the requirements of injection molding products. In the design of plastic molds, it can be designed independently or inlaid. For some plastic parts, the mosaic line of the mosaic structure is likely to affect the apparent quality of the parts, and the overall design must be adopted. However, for the overall design of special-shaped parts, the traditional mechanical processing method processes the special-shaped parts, and the straight-through water channel has a great influence on the cooling effect. If additive manufacturing is used to process the conformal water channel, the overall processing cost is quite high. For this kind of contradiction, the existing practice is generally to sacrifice cooling efficiency, carry out overall design, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/73B29C45/26B23P15/24
CPCB23P15/24B29C45/2602B29C45/7312
Inventor 潘晓勇彭德权刘勇刘佳其
Owner SICHUAN CHANGHONG ELECTRIC CO LTD