Double-layer sliding block inclined sliding demolding mechanism of automobile exterior trimming plate mold

Abstract

A double-layer sliding block inclined sliding demolding mechanism of an automobile exterior trimming panel mold comprises a fixed mold compound plate and a movable mold compound plate, a fixed mold plate and a fixed mold insert are arranged below the fixed mold compound plate, a movable mold plate and a movable mold insert are arranged on the movable mold compound plate, an automobile exterior trimming panel formed through injection molding is arranged between the movable mold insert and the fixed mold insert, and an assembling inverted buckle is arranged on one side of the automobile exterior trimming panel. An inclined sliding groove is formed in the position, corresponding to the movable mold insert, of the movable mold plate, a lower inclined sliding block is arranged in the inclined sliding groove in a sliding mode, a lower inverted buckle insert is arranged on the head portion of the lower inclined sliding block, a corresponding upper inclined sliding block is arranged on the lower inclined sliding block, and an upper inverted buckle insert is arranged on the head portion of the upper inclined sliding block. A limiting linkage structure is arranged between the upper inclined sliding block and the lower inclined sliding block, the upper back-off insert and the lower back-off insert are matched to form a back-off insert, the back-off insert is matched with the assembling back-off, a sealing strip groove is formed in the upper back-off insert, the sealing strip groove is matched with a sealing strip, an oil cylinder is arranged on the corresponding side wall of the movable mold plate, and an oil cylinder rod of the oil cylinder is connected with the lower inclined sliding block.

Description

Technical Field

[0001] The utility model relates to an oblique sliding demoulding mechanism of a double-layer slider of an automobile exterior panel mold, belonging to the field of injection molds. Background Art

[0002] Injection molds are used to produce automotive exterior panels, such as bumper trims and other products. According to the product appearance and structural analysis, a seal is set in the assembly undercut on one side of the product for water sealing. After the assembly undercut and seal are formed, they need to be demolded before the product can be ejected (taken out) of the mold. Conventional seal demolding generally adopts an inclined ejection structure, but the seal of this product is located in the assembly undercut, and the assembly undercut interferes with the demolding direction of the seal, resulting in the seal being unable to be ejected normally. Therefore, the applicant designed a double-layer slider oblique sliding structure to achieve smooth demolding of the seal and the assembly undercut. Summary of the invention

[0003] The utility model aims to overcome the disadvantages of the prior art and provides a double-layer slider oblique sliding demoulding mechanism for an automobile exterior panel mold which adopts a double-layer slider oblique sliding structure to enable a seal and an assembly undercut to be smoothly ejected.

[0004] The utility model discloses a double-layer slider oblique sliding demoulding mechanism for a mold of an automobile exterior panel, comprising a fixed mold duplicate plate and a movable mold duplicate plate, a cushion block is arranged under the fixed mold duplicate plate, a hot runner system is arranged between the cushion blocks, a fixed mold plate is arranged under the cushion block, a fixed mold insert is arranged in the fixed mold plate, a mold foot is arranged on the movable mold duplicate plate, an upper top plate and a lower top plate are arranged between the mold feet, a movable mold plate is arranged on the mold foot, a movable mold insert is arranged in the movable mold plate, an injection-molded automobile exterior panel is arranged between the movable mold insert and the fixed mold insert, an assembly undercut is arranged on one side of the automobile exterior panel, a sealing strip is arranged in the assembly undercut, and a sealing strip is arranged between the movable mold plate and the movable mold An inclined slide groove is arranged at the corresponding position of the insert, a lower inclined slider is slidingly arranged in the inclined slide groove, a lower inverted insert is arranged at the head of the lower inclined slider, a corresponding upper inclined slider is arranged on the lower inclined slider, an upper inverted insert is arranged at the head of the upper inclined slider, a limiting linkage structure is arranged between the upper inclined slider and the lower inclined slider, the upper inverted insert cooperates with the lower inverted insert to form an inverted insert, the inverted insert cooperates with the assembly inverted, a sealing groove is formed on the upper inverted insert, the sealing groove cooperates with the seal, an oil cylinder is arranged on the corresponding side wall of the movable template, and the cylinder rod of the oil cylinder is connected to the lower inclined slider.

[0005] The double-layer slider oblique sliding demoulding mechanism of the automobile exterior panel mold of the utility model, when demoulding, the dynamic mold plate and the dynamic mold insert of the mold are driven by power to open the mold with the fixed mold plate and the fixed mold insert, and the automobile exterior panel remains on the dynamic mold insert. At this time, the assembly undercut and the seal have not yet been disengaged from the undercut insert and the seal groove. Therefore, the oil cylinder works to drive the lower oblique slider to slide outward obliquely, so that the lower undercut insert is first disengaged from the assembly undercut. At the same time, after the lower undercut insert moves, the upper undercut insert loses the support of the lower undercut insert and will fall off downward (the position of the fall is very small), so that the seal is disengaged from the seal groove. At the same time, under the action of the limit linkage structure, the lower oblique slider drives the upper oblique slider to slide outward together, so that the upper undercut insert is disengaged from the assembly undercut, and the demoulding of the assembly undercut and the seal is completed. This scheme adopts a double-slider oblique sliding demoulding structure to realize the linkage demoulding of the assembly undercut and the seal set therein, with stable action and reliable coordination, so that the product can be demoulded smoothly.

[0006] The utility model discloses a double-layer slider oblique sliding demoulding mechanism for a mold for an automobile exterior panel, wherein the limit linkage structure comprises a linkage block arranged on the lower oblique slider, an empty limiting groove arranged on the upper oblique slider, the linkage block extending into the empty limiting groove, when the oil cylinder drives the lower oblique slider and the lower inverted buckle insert to slide obliquely outward, the linkage block follows to move in the empty limiting groove, and at the same time, after the lower oblique slider and the lower inverted buckle insert move, after sliding a certain distance, the upper inverted buckle insert loses the support of the lower inverted buckle insert and will follow to fall off downward, so that the seal will fall off from the seal groove, and at this time, the linkage block hits the outer inner wall of the empty limiting groove, and under the action of the linkage block, the upper oblique slider is driven to slide obliquely outward together, and the upper inverted buckle insert and the lower inverted buckle insert are completely pulled out of the assembly inverted buckle, and the assembly inverted buckle and the demoulding of the seal are completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic diagram of the structure of the double-layer slider oblique demoulding mechanism of the automobile exterior panel mold of the utility model;

[0008] Figure 2 yes Figure 1 A local enlarged view of point A;

[0009] Figure 3 It is a schematic diagram of the limit linkage structure of the utility model;

[0010] Figure 4 It is a schematic diagram of an automobile exterior trim panel of the present utility model. DETAILED DESCRIPTION

[0011] The utility model relates to a double-layer slider oblique sliding demoulding mechanism for an automobile exterior panel mold, such as Figure 1 — Figure 4As shown, it includes a fixed mold plate 1 and a movable mold plate 2, a cushion block 3 is arranged under the fixed mold plate, a hot runner system is arranged between the cushion blocks, a fixed mold plate 5 is arranged under the cushion block, a fixed mold insert 6 is arranged in the fixed mold plate, a mold foot 7 is arranged on the movable mold plate, an upper top plate 8 and a lower top plate 9 are arranged between the mold feet, a movable mold plate 10 is arranged on the mold foot, a movable mold insert 11 is arranged in the movable mold plate, an injection-molded automobile exterior panel 12 is arranged between the movable mold insert 11 and the fixed mold insert 6, an assembly undercut 13 is arranged on one side of the automobile exterior panel, a seal 15 is arranged in the assembly undercut, and an inclined slide groove 17 is arranged at the corresponding position of the movable mold plate 10 and the movable mold insert 11 A lower inclined slider 18 is slidably arranged in the inclined slide groove, a lower inverted insert 19 is arranged at the head of the lower inclined slider, a corresponding upper inclined slider 20 is arranged on the lower inclined slider, an upper inverted insert 21 is arranged at the head of the upper inclined slider 20, a limiting linkage structure is arranged between the upper inclined slider 20 and the lower inclined slider 18, the upper inverted insert 21 cooperates with the lower inverted insert 19 to form an inverted insert, the inverted insert cooperates with the assembly inverted 13, a sealing groove 22 is formed on the upper inverted insert, the sealing groove 22 cooperates with the seal 15, an oil cylinder 23 is arranged on the corresponding side wall of the movable template 10, and the cylinder rod of the oil cylinder 23 is connected to the lower inclined slider 18.

[0012] During demoulding, the dynamic mold plate 10 and the dynamic mold insert 11 of the mold are driven by power to open the mold with the fixed mold plate 5 and the fixed mold insert 6, and the automobile exterior panel 12 remains on the dynamic mold insert 11. At this time, the assembly undercut 13 and the seal 15 have not yet come out of the undercut insert and the seal groove. Therefore, the oil cylinder 23 works to drive the lower inclined slider 18 to slide outward obliquely, so that the lower undercut insert 19 first comes out of the assembly undercut 13. At the same time, after the lower undercut insert 19 moves, the upper undercut insert 21 loses the support of the lower undercut insert 19 and will fall off downward (the falling position is very small), so that the seal 15 comes out of the seal groove 22. At the same time, under the action of the limit linkage structure, the lower inclined slider 18 drives the upper inclined slider 20 to slide outward together, so that the upper undercut insert 21 comes out of the assembly undercut, and the demoulding of the assembly undercut 13 and the seal 15 is completed. The present invention adopts a double-slider oblique-sliding demoulding structure, which realizes the linkage demoulding of the assembly undercut and the seal arranged therein, with stable action and reliable cooperation, so that the product can be demoulded smoothly. The limit linkage structure includes a linkage block 25 arranged on the lower oblique slider 18, and an air-avoiding limit groove 26 arranged on the upper oblique slider 20, wherein the linkage block 25 extends into the air-avoiding limit groove 26. When the oil cylinder drives the lower oblique slider and the lower undercut insert to slide outward obliquely, the linkage block 25 moves in the air-avoiding limit groove accordingly. At the same time, after the lower oblique slider and the lower undercut insert move, after sliding a certain distance, the upper undercut insert loses the support of the lower undercut insert and will fall off downward accordingly, so that the seal will fall out of the seal groove. At this time, the linkage block 25 hits the outer inner wall of the air-avoiding limit groove. Under the action of the linkage block, the upper oblique slider 20 is driven to slide outward obliquely together, so that the upper undercut insert and the lower undercut insert are completely pulled out of the assembly undercut, and the demoulding of the assembly undercut and the seal is completed.

[0013] In actual production, the demoulding mechanism of this scheme can be applied to one-mold multi-cavity molds such as one-out-one, one-out-two and one-out-four, and can also be applied to molds for single-color or two-color injection molding products. It has a wide range of applications and good practicality.

Claims

1. A double-layer slider oblique demoulding mechanism for an automobile exterior panel mold, comprising a fixed mold plate (1) and a movable mold plate (2), a cushion block (3) being arranged under the fixed mold plate, a hot runner system being arranged between the cushion blocks, a fixed mold plate (5) being arranged under the cushion block, a fixed mold insert (6) being arranged in the fixed mold plate, a mold foot (7) being arranged on the movable mold plate, an upper top plate (8) and a lower top plate (9) being arranged between the mold feet, a movable mold plate (10) being arranged on the mold foot, a movable mold insert (11) being arranged in the movable mold plate, an automobile exterior panel (12) being injection molded between the movable mold insert (11) and the fixed mold insert (6), an assembly undercut (13) being arranged on one side of the automobile exterior panel, a seal (15) being arranged in the assembly undercut, characterized in that: An inclined slide groove (17) is arranged at corresponding positions of the movable template (10) and the movable mold insert (11), a lower inclined slider (18) is slidably arranged in the inclined slide groove, a lower inverted insert (19) is arranged at the head of the lower inclined slider, a corresponding upper inclined slider (20) is arranged on the lower inclined slider, an upper inverted insert (21) is arranged at the head of the upper inclined slider (20), a limit linkage structure is arranged between the upper inclined slider (20) and the lower inclined slider (18), the upper inverted insert (21) cooperates with the lower inverted insert (19) to form an inverted insert, the inverted insert cooperates with the assembly inverted insert (13), a sealing groove (22) is formed on the upper inverted insert, and the sealing groove (22) cooperates with the sealing strip (15), and an oil cylinder (23) is arranged on the corresponding side wall of the movable template (10), and the oil cylinder rod of the oil cylinder (23) is connected to the lower inclined slider (18).

2. The double-layer slider oblique demoulding mechanism of the automobile exterior panel mold according to claim 1, characterized in that The position-limiting linkage structure comprises a linkage block (25) arranged on the lower inclined slider (18), a clearance-avoiding position-limiting groove (26) arranged on the upper inclined slider (20), and the linkage block (25) extending into the clearance-avoiding position-limiting groove (26).

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