The utility model discloses a mold structure of a three-color injection molding decorative board, which comprises a punch, a mold core and a glue sealing device; the glue sealing device is arranged in a cavity defined by the punch and the mold core; the glue sealing device includes a driving mechanism; a connecting block is connected on the movable push rod of the driving mechanism; the cross section of the connecting block is trapezoidal; and the inclined plane of the connecting block is alive. The upper and lower movement of the connecting block drives the tightening block to move left and right, and the outer side of the tightening block is provided with an inclined downward convex block. A sliding groove is arranged on the side of the gate knife for sealing the third color injection mouth, and the convex block of the tightening block is embedded in the sliding groove of the gate knife, and the left and right movement of the tightening block drives the gate knife to move up and down. The mold structure of the three-color injection molding decorative board of the utility model has an oil cylinder driving the connecting block to move up and down, driving the tightening block to move left and right, and driving the brake knife to move up and down. The injection port on the convex surface of the trimming board is sealed by a gate knife, and the ABS and PMMA are injected into the plane of the trimming board. After completion, the gate knife is moved down and the TPE is injected into the convex surface of the trimming board.
【技术实现步骤摘要】
三色注塑饰板的模具结构
本技术涉及饰板注塑领域,尤其涉及一种三色注塑饰板的模具结构。
技术介绍
如图1所示的三色注塑饰板80,在饰板加工成型后需进行三色注塑,即在饰板80的平面81上先注塑第一色ABS材料,再注塑第二色PMMA材料,而后在饰板80的凸块面82上注塑第三色的软胶TPE材料。在饰板平面81上注塑ABS材料和PMMA材料时,如何将注塑第三色的凸块面82注塑口封闭,注塑的ABS材料和PMMA材料不流到饰板的凸块面,使凸块面82上不混有ABS材料和PMMA材料,保证凸块面82的注塑质量,是生产中面临的问题。
技术实现思路
针对上述问题,本技术目的在于提供一种三色注塑饰板的模具结构,饰板注塑ABS材料和PMMA材料时,第三色软胶口封口牢固,以解决现有技术中的问题。为了实现上述目的,本技术的技术方案如下:三色注塑饰板的模具结构,包括凸模、模芯、封胶装置;所述封胶装置设置在凸模、模芯界定的型腔内,封胶装置包括驱动机构,所述驱动机构的活动推杆上连接有连接块,所述连接块截面呈梯形,连接块的斜面上活动连接锲紧块,连接块的上下移动带动所述锲紧块左右移动,所述锲紧块的外侧设有斜向下的凸块,用于封堵第三色注塑口的闸刀侧面设有滑槽,所述锲紧块的凸块嵌入闸刀的滑槽中,锲紧块的左右移动带动闸刀上下移动。本技术的一种优选方案,所述连接块的斜面上设有工字型凸边,所述锲紧块上设有与所述工字型凸边适配的卡槽,所述工字型凸边卡接在所述卡槽内。本技术的另一种优选方案,所述锲紧块的凸块末端设有折块,所述凸模上设有容纳所述折块的容腔。本技术的另一种优选方案,所述连接块为铍铜连接块。本技术的另一种优 ...
【技术保护点】
1.三色注塑饰板的模具结构,其特征在于:包括凸模(11)、模芯(12)、封胶装置;所述封胶装置设置在凸模(11)、模芯(12)界定的型腔内,封胶装置包括驱动机构(20),所述驱动机构(20)的活动推杆(21)上连接有连接块(30),所述连接块(30)截面呈梯形,连接块(30)的斜面上活动连接锲紧块(40),连接块(30)的上下移动带动所述锲紧块(40)左右移动,所述锲紧块(40)的外侧设有斜向下的凸块(42),用于封堵第三色注塑口的闸刀(50)侧面设有滑槽(51),所述锲紧块(40)的凸块(42)嵌入闸刀的滑槽(51)中,锲紧块(40)的左右移动带动闸刀(50)上下移动。
【技术特征摘要】
1.三色注塑饰板的模具结构,其特征在于:包括凸模(11)、模芯(12)、封胶装置;所述封胶装置设置在凸模(11)、模芯(12)界定的型腔内,封胶装置包括驱动机构(20),所述驱动机构(20)的活动推杆(21)上连接有连接块(30),所述连接块(30)截面呈梯形,连接块(30)的斜面上活动连接锲紧块(40),连接块(30)的上下移动带动所述锲紧块(40)左右移动,所述锲紧块(40)的外侧设有斜向下的凸块(42),用于封堵第三色注塑口的闸刀(50)侧面设有滑槽(51),所述锲紧块(40)的凸块(42)嵌入闸刀的滑槽(51)中,锲紧块(40)的左右移动带动闸刀(50)上下...
【专利技术属性】
技术研发人员:赵佳欢,
申请(专利权)人:上海诚烨汽车零部件有限公司,
类型:新型
国别省市:上海,31
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