In-mold spraying system and process method thereof

A technology of internal spraying and mold cavity, which is applied to other household appliances, household components, household appliances, etc., can solve the problems of device differentiation, etc., and achieve the effects of high production efficiency, convenient operation and reliable operation

Active Publication Date: 2022-03-08
TEDERIC MACHINERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The device is mainly equipped with a nozzle on the manipulator, and uses up and down movement and horizontal movement to clamp the mold and take parts. The device is more differentiated

Method used

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  • In-mold spraying system and process method thereof
  • In-mold spraying system and process method thereof
  • In-mold spraying system and process method thereof

Examples

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Effect test

Embodiment 1

[0052] In the embodiment shown in Figure 1, an in-mold spraying system, the whole system mainly includes an injection machine 100, three half-molds, a mold temperature control unit 9, a PU injection device 8 and a double inclined mixing nozzle 5, the The injection machine 100 includes a hopper 1, an injection part 2, a front plate 3, a movable plate 10, and a mold clamping mechanism 11. The mold temperature control unit 9 controls the temperature of the three half molds to prevent the PU material from rapidly solidifying during the injection process. The three half-molds are respectively the first half-mold 4, the second half-mold 6 and the third half-mold 7, the first half-mold 4 is set on the front template 3, and the second half-mold 4 is set on the movable template 10. Half-mold 6 and third half-mold 7. Described first half mold 4 is provided with thimble 41, and ejector pin is set on the first half mold for the convenience that the workpiece that is coated with PU layer i...

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Abstract

The invention discloses an in-mold spraying system which comprises an injection machine, a PU injection device and a mold temperature control unit, the injection machine comprises a hopper, an injection part, a front mold plate, a movable mold plate and a mold closing mechanism, a first half mold is arranged on the front mold plate, a second half mold and a third half mold are arranged on the movable mold plate, and the mold temperature control unit is arranged on the second half mold. The second half mold and the third half mold are respectively assembled with the first half mold to form a base material injection mold cavity and a PU injection mold cavity, and the side surface of the third half mold is provided with a double-inclined mixing nozzle connected with a PU injection device; the outer part of the double-inclined type mixing spray head is in inclined sealing connection with the side surface of the third half mold and is in inclined sealing butt joint with the side surface of the first half mold in the mold closing process; and the internal spraying axis of the double-inclined type mixing spray head is inclined to the axis of an injection runner in the PU injection mold cavity. The invention further discloses a technological method for conducting spraying through the in-mold spraying system. And a pair of inclined mixing nozzles is obliquely mounted on the side surface of the third half mold, so that the quality stability and continuity are improved.

Description

technical field [0001] The invention relates to the technical field of injection molding, in particular to an in-mold spraying system and a process method thereof. Background technique [0002] Automotive interiors put forward higher requirements for color, touch, and intelligence. As a "smart" material, polyurethane (hereinafter referred to as PU) is flexible, hard, wear-resistant, scratch-resistant, and self-repairing. Features, as well as the advantages of free matching of colors, bright colors, and friendliness to "smart inserts", are used in the preparation of interior components such as dashboards, center consoles, door panels, and smart home appliances, and the number of applications is increasing year by year. . [0003] The existing conventional processing method is to inject semi-finished plastic parts first, and then transfer the semi-finished plastic parts to other stations for surface PU layer processing. More complicated, the whole production cycle is long. ...

Claims

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Application Information

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IPC IPC(8): B29C45/16B29C45/26B29C45/67B29C45/74B29L31/58
CPCB29C45/1671B29C45/1615B29C45/162B29C45/1603B29C45/2602B29C45/67B29C45/74B29L2031/58B29C45/7653B29C45/1679B29C45/37B29C45/80B29C45/641B29C45/78B29C2945/76498B29C2945/76535B29C2945/76702B29C2945/76735B29K2055/02B29K2069/00B29K2075/00
Inventor 郑建国周宏伟陆佳慧沈海波林武饶宾期马宏源刘波刘国林周佳
Owner TEDERIC MACHINERY
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