CN212097352U

CN212097352U - Straight ejector block submarine gate demoulding device of automobile instrument panel injection mold

Info

Publication number: CN212097352U
Application number: CN201922235088.6U
Authority: CN
Inventors: 胡卫民; 张茂盛; 金兰芬; 肖惠平
Original assignee: Taizhou Huangyan Xingtai Plastic Mold Co ltd
Current assignee: Taizhou Huangyan Xingtai Plastic Mold Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-12-08
Anticipated expiration: 2029-12-13

Abstract

The utility model provides a submarine gate demoulding device for a straight top block of an injection mould of an automobile instrument panel, which comprises a core fixing plate, a mandril bottom plate, a mandril panel, a core plate and a straight top block, the ejector rod at the lower end of the straight ejector block penetrates through the core plate and then is connected to the ejector rod panel, the top surface of the straight ejector block is provided with a submarine gate ejector block, the bottom of the ejector rod bottom plate is provided with a lever ejection mechanism, the front end of the lever ejection mechanism is connected with an accelerating ejector rod, the accelerating ejector rod penetrates through the ejector rod bottom plate and the ejector rod panel and is positioned above the ejector rod panel, the rear end of the lever ejection mechanism is connected with a material pulling rod, the material pulling rod passes through the ejector rod bottom plate, the ejector rod panel, the core plate and the straight ejection block and then is connected with the submarine gate ejection block, the upper surface of the ejector rod panel is connected with an ejection limiting block, the top surface of the accelerating ejector rod is higher than the top surface of the ejection limiting block in a normal state, and a reset base plate is arranged on the position, corresponding to the lever ejection mechanism, of the core fixing plate.

Description

Straight ejector block submarine gate demoulding device of automobile instrument panel injection mold

Technical Field

The utility model relates to an instrument board injection mold especially relates to an instrument board injection mold straight kicking block runner shedder of hiding.

Background

In the design process of the plastic mold, the instrument panel mold usually adopts a multi-point sequence valve hot runner pouring control device, and the scheme is confirmed by a customer on the basis that filling balance is considered in point position arrangement; when the hot runner points are distributed on the straight ejector blocks on the periphery of the parting surface, the material pulling rod at the bottom of the runner needs to realize secondary ejection after the straight ejector blocks are ejected, and the automatic falling of the submarine gate on the straight ejector block can be ensured. When the hot runner gate inlet point position is designed on the straight ejector block, a spring or a nitrogen cylinder is generally considered to be adopted to drive the material pulling rod to eject and separate from the straight ejector block. Because the sizes of the submarine gates are different, the packing force is different, and the product quality is influenced by insufficient or excessive spring ejecting force. And the safety coefficient of the spring or the nitrogen cylinder is low, the working state of the die is unstable, the production efficiency of the product is seriously restricted, and the control of the product quality and the cost is not facilitated.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model aims at providing a header board injection mold straight kicking block runner shedder of hiding can accelerate ejecting material pulling rod, and simple structure is stable, and the cost is reduced has improved work efficiency.

The technical scheme of the utility model is that a straight ejector block submarine gate demoulding device of an automobile instrument panel injection mould comprises a core fixing plate, an ejector rod bottom plate, an ejector rod panel, a core plate and a straight ejector block, wherein an ejector rod at the lower end of the straight ejector block is connected to the ejector rod panel after passing through the core plate, the top surface of the straight ejector block is provided with a submarine gate ejector block, the bottom of the ejector rod bottom plate is provided with a lever ejector mechanism, the front end of the lever ejector mechanism is connected with an accelerating ejector rod, the accelerating ejector rod passes through the ejector rod bottom plate and the ejector rod panel and then is positioned above the ejector rod panel, the rear end of the lever ejector mechanism is connected with a material pulling rod, the material pulling rod passes through the ejector rod bottom plate, the ejector rod panel, the core plate and the straight ejector block and then is connected with a submarine gate ejector block, the upper surface of the ejector rod panel is connected with an ejector stopper, the, during ejection, after the top of the acceleration ejector rod contacts the core plate until the top of the ejection limiting block contacts the core plate, the acceleration ejector rod at the front end pushes the lever ejection mechanism downwards so that the material pulling rod at the rear end pushes the submarine gate ejection block upwards to eject the submarine gate.

Preferably, the lever ejection mechanism comprises a pressing plate, a positioning pin and an installation block, the positioning pin is located in the middle of the pressing plate and extends out to the left side and the right side of the pressing plate, the installation block is located below the positioning pin and connected to the bottom of the ejector rod bottom plate through screws, the accelerating ejector rod is connected to the front end of the pressing plate, the material pulling rod is connected to the rear end of the pressing plate, and the front end and the rear end of the pressing plate can freely rotate up and down around the positioning pin.

Preferably, the top surface of the reset cushion plate is a plane, and the front end and the rear end of the pressure plate keep consistent in height when the bottom surface of the pressure plate contacts the reset cushion plate.

Preferably, when the heights of the front end and the rear end of the pressing plate are consistent, the height difference between the top surface of the accelerating ejector rod and the top surface of the ejecting limiting block is smaller than or equal to the total height of the front end and the rear end of the pressing plate in vertical movement.

The utility model adopts a mechanical structure to accelerate the ejection of the material pulling rod, has simple and stable structure, reduces the cost and improves the working efficiency; the defects of insufficient or overlarge ejection force, inconvenient later maintenance such as replacement of the nitrogen cylinder and the like caused by the air pressure of the nitrogen cylinder due to the unstable factor of the secondary ejection structure of the nitrogen cylinder are avoided; the working efficiency is improved, the production cost is reduced, and the large-scale production and application are facilitated; has wide market prospect and commercial development significance.

Drawings

FIG. 1 is a top view of a product and a straight top block of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic structural diagram of a first stage of the ejection cylinder in FIG. 2;

FIG. 4 is a schematic structural view of a second stage of the ejection cylinder in FIG. 2;

fig. 5 is a schematic view of the connection structure among the middle straight ejector block, the material pulling rod, the accelerating ejector rod, the lever ejection mechanism and the reset base plate of the present invention;

FIG. 6 is a schematic view of a connection structure between the material pulling rod, the accelerating mandril, the lever ejection mechanism and the reset base plate in FIG. 5;

FIG. 7 is an exploded view of FIG. 6;

wherein: 1-core fixing plate; 2-a mandril bottom plate; 3, a mandril panel; 4-a core plate; 5, straightening a top block; 6, a mandril; 7, ejecting a block from the submarine gate; 8-a lever ejection mechanism; 9-accelerating ejector rod; 10, pulling a material rod; 11-ejecting a limiting block; 12-a reset backing plate; 13-a platen; 14-a positioning pin; 15-mounting block; a, products.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 7, the utility model provides a straight ejector block submarine gate demoulding device of an injection mould of an automobile instrument panel, which comprises a core fixing plate 1, an ejector rod bottom plate 2, an ejector rod panel 3, a core plate 4 and a straight ejector block 5, wherein an ejector rod 6 at the lower end of the straight ejector block 5 passes through the core plate 4 and then is connected to the ejector rod panel 3, a submarine gate ejector block 7 is arranged on the top surface of the straight ejector block 5, a lever ejector mechanism 8 is arranged at the bottom of the ejector rod bottom plate 2, the front end of the lever ejector mechanism 8 is connected with an accelerating ejector rod 9, the accelerating ejector rod 9 passes through the ejector rod bottom plate 2 and the ejector rod panel 3 and then is positioned above the ejector rod panel 3, the rear end of the lever ejector mechanism 8 is connected with a pulling rod 10, the pulling rod 10 passes through the ejector rod bottom plate 2, the ejector rod panel 3, the core plate 4 and the straight ejector block 5 and then is, the top surface of the acceleration ejector rod 9 is higher than the top surface of the ejection limiting block 11 in a normal state, a reset backing plate 12 is arranged on the position, corresponding to the lever ejection mechanism 8, of the core fixing plate 1, and during ejection, after the top of the acceleration ejector rod 9 contacts the core plate 4 until the top of the ejection limiting block 11 contacts the core plate 4, the acceleration ejector rod 9 at the front end pushes the lever ejection mechanism 8 downwards to enable the material pulling rod 10 at the rear end to push the submarine gate ejection block 7 upwards to eject a submarine gate.

Preferably, the lever ejection mechanism 8 comprises a pressing plate 13, a positioning pin 14 and an installation block 15, the positioning pin 14 is located in the middle of the pressing plate 13 and extends out to the left and right sides of the pressing plate 13, the installation block 15 is located below the positioning pin 14 and is connected to the bottom of the ejector rod bottom plate 2 through screws, the acceleration ejector rod 9 is connected to the front end of the pressing plate 13, the material pulling rod 10 is connected to the rear end of the pressing plate 13, the front end and the rear end of the pressing plate 13 can freely rotate up and down around the positioning pin 14, when the heights of the front end and the rear end of the pressing plate 13 are consistent, the height difference between the top surface of the acceleration ejector rod 9 and the top surface of the ejection limiting block 11 is smaller than or equal to the total height of the vertical movement of the front end and the rear.

The utility model discloses a working process does: firstly, a hot runner is injected through a submarine gate, and after injection and pressure maintaining are finished, an ejection oil cylinder drives an ejector rod panel 3, an ejector rod bottom plate 2, a straight ejection block 5, a submarine gate ejection block 7 and a material pulling rod 10 to eject simultaneously; when the ejection is carried out until the accelerating ejector rod 9 touches the bottom surface of the core plate 4, the ejector rod panel 3 and the ejector rod bottom plate 2 drive the straight ejection block 5 to continue ejecting, and the accelerating ejector rod 9 is pressed downwards under the stress, so that the lever ejection mechanism 8 pushes the material pulling rod 10 on the other side to accelerate upward ejection under the lever action of the positioning pin 14; the accelerated ejection of the material pulling rod 10 drives the submarine gate to automatically separate from the product and separate from the straight ejection block 5, so that the ejection action is finished; when the die is reset, the die is driven by the oil cylinder to move downwards, the accelerating ejector rod 9 is not stressed any more, and the accelerating ejector rod 9 and the material pulling rod 10 move according to the lever balance principle. When the ejector rod bottom plate 2 is reset and is about to reach the bottom, the lever ejection mechanism 8 is controlled by the reset base plate 12 to be restored to the original position, and ejection, reset and reliable and stable of the whole structure are guaranteed.

The above, it is only the preferred embodiment of the present invention, not to make any restriction on the utility model, all the bases the technical principle of the present invention is to any simple modification, equivalent change or modification made by the above embodiments, still belong to the technical solution scope of the present invention.

Claims

1. The utility model provides a header board injection mold straight kicking block runner shedder that hides which characterized in that: the core mold comprises a core fixing plate (1), an ejector rod bottom plate (2), an ejector rod panel (3), a core plate (4) and a straight ejector block (5), wherein an ejector rod (6) at the lower end of the straight ejector block (5) penetrates through the core plate (4) and then is connected to the ejector rod panel (3), a submarine gate ejector block (7) is arranged on the top surface of the straight ejector block (5), a lever ejector mechanism (8) is arranged at the bottom of the ejector rod bottom plate (2), an accelerating ejector rod (9) is connected to the front end of the lever ejector mechanism (8), the accelerating ejector rod (9) penetrates through the ejector rod bottom plate (2) and the ejector rod panel (3) and then is positioned above the ejector rod panel (3), a material pulling rod (10) is connected to the rear end of the lever ejector mechanism (8), and the material pulling rod (10) penetrates through the ejector rod bottom plate (2), the ejector rod panel (3), the core plate (4) and, the top surface of the ejector rod panel (3) is connected with an ejection limiting block (11), the top surface of the acceleration ejector rod (9) is higher than that of the ejection limiting block (11) in a normal state, a reset cushion plate (12) is arranged at the position, corresponding to the lever ejection mechanism (8), on the core fixing plate (1), in the process that the top of the acceleration ejector rod (9) contacts the core plate (4) and then contacts the core plate (4) until the top of the ejection limiting block (11) contacts the core plate (4), the acceleration ejector rod (9) at the front end pushes the lever ejection mechanism (8) downwards to enable the material pulling rod (10) at the rear end to push the hidden sprue ejection block (7) upwards to eject the hidden sprue.

2. The automotive instrument panel injection mold drop head block submarine gate demolding device according to claim 1, wherein: the lever ejection mechanism (8) comprises a pressing plate (13), a positioning pin (14) and an installation block (15), wherein the positioning pin (14) is located in the middle of the pressing plate (13) and extends out to the left side and the right side of the pressing plate (13), the installation block (15) is located below the positioning pin (14) and is connected to the bottom of the ejector rod bottom plate (2) through a screw, the accelerating ejector rod (9) is connected to the front end of the pressing plate (13), the material pulling rod (10) is connected to the rear end of the pressing plate (13), and the front end and the rear end of the pressing plate (13) can freely rotate up and down around the positioning pin (14).

3. The automotive instrument panel injection mold drop head block submarine gate demolding device according to claim 2, wherein: the top surface of the reset backing plate (12) is a plane, and the front end and the rear end of the pressing plate (13) keep consistent in height when contacting the reset backing plate (12).

4. The automotive instrument panel injection mold drop head block submarine gate demolding device according to claim 2, wherein: when the heights of the front end and the rear end of the pressure plate (13) are consistent, the height difference between the top surface of the accelerating ejector rod (9) and the top surface of the ejecting limiting block (11) is smaller than or equal to the total height of the front end and the rear end of the pressure plate (13) moving up and down.