CN220700299U - Ejector mechanism without top plate for automobile bumper die - Google Patents

Abstract

The utility model provides a roof-free ejection mechanism of an automobile bumper die, and belongs to the technical field of dies. The novel plastic injection molding machine comprises an upper die plate and a lower die plate, wherein a molding cavity is formed between the upper die plate and the lower die plate, a middle insert and two symmetrically arranged side inserts are arranged on the lower die plate, and a top-plate-free ejection assembly connected with the two side inserts is further arranged on the lower die plate. Can direct drive two side inserts through no roof ejecting subassembly remove ejecting with the product along the incline direction, compare in the big oblique ejection mechanism among the prior art, this application has abandoned the roof that is located the lower bolster downside, and the whole height of mould has obtained the reduction to a certain extent, sets up interior lifter plate in the lower bolster and is used for driving the side insert ejecting product that oblique top subassembly can assist the lower bolster both sides, because interior lifter plate sets up in the lower bolster inboard, also can not cause the influence to the whole height of mould.

Description

Ejector mechanism without top plate for automobile bumper die

Technical Field

The utility model belongs to the technical field of molds, and relates to a roof-free ejection mechanism of an automobile bumper mold.

Background

The automobile bumper is generally formed through die injection molding, at present, an ejection mechanism of an automobile bumper die is arranged on a top plate, the top plate is located on the lower side of a lower die plate, a section of jacking gap exists between the top plate and the lower die plate, and the whole height of the traditional automobile bumper die is high.

For example, chinese patent discloses a bumper die [ application number: 201921368690.0], including a base; the rear mold core is arranged on the base; the large straight top is arranged on the base and is in sliding connection with the rear mold core; the core pulling piece is arranged in the core pulling tunnel; the inclined top assembly is arranged on the base and is in sliding connection with the rear mold core; and the front die, the inclined top assembly and the large straight top form a core of the injection molding bumper.

Disclosure of Invention

The utility model aims to solve the problems and provides a roof-free ejection mechanism of an automobile bumper die.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides an automobile bumper mould does not have roof ejection mechanism, includes cope match-plate pattern and lower bolster, cope match-plate pattern and lower bolster between be equipped with into the die cavity, the lower bolster on be equipped with the side insert that middle insert and two symmetries set up, the lower bolster on still be equipped with the no roof ejection assembly that links to each other with two side inserts, the lower bolster in still be equipped with the interior lifter plate that is located under the middle insert, this interior lifter plate links to each other with the no roof ejection assembly, interior lifter plate on be equipped with the oblique top assembly that links to each other with middle insert.

In the automobile bumper die ejection mechanism without a top plate, the ejection assembly without the top plate comprises four lifting drivers which are distributed on the front side end face and the rear side end face of the lower die plate in a two-by-two mode, lifting side plates fixedly connected with the end portions of output shafts of the lifting drivers are further arranged on the front side end face and the rear side end face of the lower die plate, the lifting side plates are connected with the side insert through a sliding block structure, and the lower die plate is further provided with an inclined guide structure connected with the side insert.

In the ejection mechanism without the top plate of the automobile bumper die, the side insert is formed by combining the top insert and the bottom insert, the top insert is connected with the middle insert, and the bottom insert is connected with the lifting side plate.

In the ejection mechanism without the top plate of the automobile bumper die, the sliding block structure comprises a horizontal sliding groove arranged on the lifting side plate, a translation sliding block is connected in a sliding manner in the horizontal sliding groove, and the translation sliding block is fixedly connected with the bottom insert.

In the ejection mechanism without the top plate of the automobile bumper die, the inclined guide structure comprises an inner guide block fixed on the lower die plate, one side, far away from the middle insert, of the inner guide block is provided with a guide surface which is obliquely arranged, the inner side of the bottom insert is in sliding fit with the guide surface, the lower die plate is fixedly connected with an outer guide block, and the inner end surface of the outer guide block is parallel to the guide surface and is in sliding fit with the outer side wall of the bottom insert.

In the ejection mechanism without the top plate of the automobile bumper die, the lifting plate mounting cavity is formed in the lower die plate, the middle insert is arranged at the top of the lifting plate mounting cavity, two supporting seats which are in sliding connection with the inner lifting plate are fixedly connected in the lifting plate mounting cavity, and the bottom of the middle insert is fixedly connected with the supporting seats.

In the ejection mechanism without the top plate of the automobile bumper die, the inclined top assembly comprises two inclined top rods which are obliquely arranged and are opposite in inclination direction, and the bottom of each inclined top rod is hinged with the inner lifting plate, and the top of each inclined top rod is fixedly connected with an inclined top block which is in sliding connection with the middle insert block.

In the ejection mechanism without the top plate of the automobile bumper die, the bottom of the top insert is also connected with two support rods in a sliding mode, and the bottoms of the support rods are fixedly connected with the inner lifting plate.

In the ejection mechanism without the top plate of the automobile bumper die, two glue inlet flow passages are further formed in the lower die plate, the glue inlet flow passages are arranged on a straight ejection block which is in sliding connection with the lower die plate, and the bottoms of the straight ejection block are fixedly connected with the inner lifting plate through a straight ejection rod.

In the ejection mechanism without the top plate of the automobile bumper die, the lower die plate is further provided with three side core-pulling pieces connected with the side parts of the middle insert side in parallel, each side core-pulling piece comprises a core-pulling seat and a core-pulling rod, the inner end of the core-pulling seat is propped against the side parts of the middle insert and is in sliding connection with the lower die plate, and the core-pulling rod is obliquely fixed on the upper die plate and is inserted into the core-pulling seat.

Compared with the prior art, the utility model has the advantages that:

1. can direct drive two side inserts through no roof ejecting subassembly remove ejecting with the product along the incline direction, compare in the big oblique ejection mechanism among the prior art, this application has abandoned the roof that is located the lower bolster downside, and the whole height of mould has obtained the reduction to a certain extent, sets up interior lifter plate in the lower bolster and is used for driving the side insert ejecting product that oblique top subassembly can assist the lower bolster both sides, because interior lifter plate sets up in the lower bolster inboard, also can not cause the influence to the whole height of mould.

2. The lifting side plates on the front side end face and the rear side end face of the lower template can be driven to synchronously lift by the synchronous action of the four lifting drivers, the lifting side plates can drive the two side inserts to move through the sliding block structure, and the inclined guide structure can guide the side inserts so as to drive the side inserts to move upwards obliquely to one side close to the middle insert to eject a product and separate the side inserts from the product.

3. When the lifting side plate moves vertically upwards, the bottom insert can be driven to move through the translation sliding block, the translation sliding block can slide in the horizontal sliding groove, so that the bottom insert can move along the inclined direction, the guide surface on the inner guide block is matched with the outer guide block to limit the bottom insert, the bottom insert can be guided, and the bottom insert and the top insert can move obliquely upwards to one side close to the middle insert.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.

Drawings

FIG. 1 is a schematic view of the external structure of the present utility model;

FIG. 2 is a three-dimensional view of the lower template;

FIG. 3 is a cross-sectional view of the lower die plate;

fig. 4 is a partial structural schematic diagram of the present utility model.

In the figure, an upper die plate 1, a lower die plate 2, a forming cavity 3, a middle insert 4, a side insert 5, a top-plate-free ejection assembly 6, an inner lifting plate 7, a lifting driver 8, a lifting side plate 9, a top insert 10, a bottom insert 11, a horizontal sliding groove 12, a translation sliding block 13, an inner guide block 14, a guide surface 15, an outer guide block 16, a lifting plate mounting cavity 17, a supporting seat 18, an inclined ejector rod 19, an inclined ejector block 20, a supporting rod 21, a straight ejector block 22, a straight ejector rod 23, a core-pulling seat 24 and a core-pulling rod 25.

Detailed Description

As shown in fig. 1-4, an ejector mechanism without a top plate for an automobile bumper die comprises an upper die plate 1 and a lower die plate 2, a molding cavity 3 is arranged between the upper die plate 1 and the lower die plate 2, a middle insert 4 and two symmetrically arranged side inserts 5 are arranged on the lower die plate 2, an ejector assembly without a top plate 6 connected with the two side inserts 5 is further arranged on the lower die plate 2, an inner lifting plate 7 positioned under the middle insert 4 is further arranged in the lower die plate 2, the inner lifting plate 7 is connected with the ejector assembly without the top plate 6, and an oblique top assembly connected with the middle insert 4 is arranged on the inner lifting plate 7.

In the utility model, the ejector assembly 6 without the top plate can directly drive the two side inserts to move along the inclined direction to eject the product, compared with a large inclined ejector mechanism in the prior art, the ejector mechanism abandons the top plate positioned at the lower side of the lower die plate, the overall height of the die is reduced to a certain extent, and the inner lifting plate is arranged in the lower die plate and used for driving the inclined ejector assembly to assist the side inserts at two sides of the lower die plate to eject the product.

Specifically speaking, the ejection assembly 6 without the top plate comprises four lifting drivers 8 which are distributed on the front side end face and the rear side end face of the lower die plate 2 in pairs, lifting side plates 9 which are fixedly connected with the end parts of output shafts of the lifting drivers 8 are further arranged on the front side end face and the rear side end face of the lower die plate 2, the lifting side plates 9 are connected with the side inserts 5 through a sliding block structure, and the lower die plate 2 is further provided with an inclined guide structure connected with the side inserts 5. The lifting side plates on the front side end face and the rear side end face of the lower template can be driven to synchronously lift by the synchronous action of the four lifting drivers, the lifting side plates can drive the two side inserts to move through the sliding block structure, and the inclined guide structure can guide the side inserts so as to drive the side inserts to move upwards obliquely to one side close to the middle insert to eject a product and separate the side inserts from the product.

It will be appreciated by those skilled in the art that the lift drive may be an oil cylinder, an air cylinder, a linear motor, or the like.

Preferably, as shown in fig. 3 and 4, the side insert 5 is formed by combining the top insert 10 and the bottom insert 11, so that maintenance and replacement costs when the side insert is damaged can be reduced, the top insert 10 is connected with the middle insert 4, and the bottom insert 11 is connected with the lifting side plate 9.

Specifically, the sliding block structure comprises a horizontal sliding groove 12 arranged on the lifting side plate 9, a translation sliding block 13 is connected in a sliding manner in the horizontal sliding groove 12, and the translation sliding block 13 is fixedly connected with the bottom insert 11. When the lifting side plate moves vertically upwards, the bottom insert can be driven to move through the translation sliding block, and the translation sliding block can slide in the horizontal sliding groove, so that the bottom insert can move along the inclined direction.

Specifically speaking, the inclined guide structure comprises an inner guide block 14 fixed on the lower die plate 2, a guide surface 15 which is obliquely arranged is arranged on one side, far away from the middle insert 4, of the inner guide block 14, the inner side of the bottom insert 11 is in sliding fit with the guide surface 15, an outer guide block 16 is fixedly connected to the lower die plate 2, and the inner end surface of the outer guide block 16 is parallel to the guide surface 15 and is in sliding fit with the outer side wall of the bottom insert 11. The guide surface on the inner guide block is matched with the outer guide block, so that the bottom insert can be limited, the bottom insert can be guided, and the bottom insert and the top insert can move upwards obliquely towards one side close to the middle insert.

Specifically, as shown in fig. 3 and 4, a lifting plate installation cavity 17 is formed in the lower die plate 2, the middle insert 4 is arranged at the top of the lifting plate installation cavity 17, two supporting seats 18 which are in sliding connection with the inner lifting plate 7 are fixedly connected in the lifting plate installation cavity 17, and the bottom of the middle insert 4 is fixedly connected with the supporting seats 18. The lifting plate installation cavity arranged on the inner side of the lower template can be used for the up-and-down movement of the inner lifting plate, and the supporting seat can fix the middle insert at the top of the lifting plate installation cavity.

Specifically, referring to fig. 2 and 4, the oblique top assembly includes two oblique top rods 19 disposed obliquely and having opposite oblique directions, the bottom of the oblique top rod 19 is hinged to the inner lifting plate 7, and the top of the oblique top rod is fixedly connected with an oblique top block 20 slidably connected with the middle insert 4. The lifting side plate can also drive the inner lifting plate to move when moving, and the inner lifting plate can drive the inclined ejector blocks to move upwards through the two inclined ejector rods to apply thrust to the product so as to eject the product by matching with the side insert.

Preferably, the bottom of the top insert 10 is also slidably connected with two support rods 21, and the bottom of the support rods 21 is fixedly connected with the inner lifting plate 7. The two inner support rods can move together with the inner lifting plate, when the side insert moves obliquely upwards, the top insert can generate horizontal displacement, and the support rods can always keep propping against the top insert so as to support and limit and guide the top insert.

Preferably, as shown in fig. 2 and 4, the lower die plate 2 is further provided with two glue inlet channels, the glue inlet channels are arranged on a straight top block 22 slidably connected with the lower die plate 2, and the bottom of the straight top block 22 is fixedly connected with the inner lifting plate 7 through a straight top rod 23. The glue inlet flow channel is arranged on the straight ejection block, so that the residual materials in the glue inlet flow channel can be ejected synchronously when the product is ejected.

In this embodiment, as shown in fig. 2, three side core-pulling members connected to the side portion of the middle insert 4 are further disposed on the lower die plate 2 side by side, the side core-pulling members include a core-pulling seat 24 and a core-pulling rod 25, the inner end of the core-pulling seat 24 abuts against the side portion of the middle insert 4 and is slidably connected with the lower die plate 2, and the core-pulling rod 25 is obliquely fixed on the upper die plate 1 and is inserted into the core-pulling seat 24. The core drawing seat can be used for forming a groove at the side part of a product when the product is injected, and when the mold is opened, the upper mold plate moves upwards to drive the core drawing rod which is obliquely arranged to vertically move upwards, and the core drawing rod moves upwards to drive the core drawing seat to move in the direction away from the forming cavity so as to draw core, so that the product is conveniently demolded.

The working principle of the utility model is as follows: compared with a large-inclined ejection mechanism in the prior art, the ejector mechanism has the advantages that the ejector assembly 6 without the top plate can directly drive two side inserts to move in the inclined direction to eject a product, the ejector mechanism abandons the top plate positioned on the lower side of the lower die plate, the overall height of the die is reduced to a certain extent, an inner lifting plate is arranged in the lower die plate to drive the inclined ejection assembly to assist the side inserts on two sides of the lower die plate to eject the product, and the inner lifting plate is arranged on the inner side of the lower die plate and cannot influence the overall height of the die;

the lifting side plates on the front side end face and the rear side end face of the lower template can be driven to synchronously lift by the synchronous action of the four lifting drivers, the lifting side plates can drive the two side inserts to move through the sliding block structure, the inclined guide structure can guide the side inserts to move obliquely upwards to enable the side inserts to be close to the middle insert to eject products and enable the side inserts to be separated from the products, the bottom inserts can be driven to move through the translation sliding blocks to move vertically upwards when the lifting side plates move vertically, the translation sliding blocks can slide in the horizontal sliding grooves to enable the bottom inserts to move along the inclined direction, and the guide surfaces on the inner guide blocks cooperate with the outer guide blocks to limit the bottom inserts to guide the bottom inserts, so that the bottom inserts and the top inserts can move obliquely upwards to the side close to the middle insert;

the lifting side plates can also drive the inner lifting plate to move when moving, the inner lifting plate can vertically move upwards to drive the inclined ejector blocks to move upwards to apply thrust to a product through the two inclined ejector rods, the two inner supporting rods can move together with the inner lifting plate to eject the product through the side inserts, the top inserts can generate horizontal upward displacement when the side inserts move upwards in an inclined mode, the supporting rods can always keep propped against the top inserts to support and limit the top inserts, the core-pulling seat can form a groove on the side portion of the product when the product is molded, the upper die plate can move upwards to drive the core-pulling rods which are obliquely arranged to vertically move upwards when the die is opened, and the core-pulling rods can move upwards to drive the core-pulling seat to move away from the direction of the forming cavity so as to facilitate demolding of the product.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although the upper die plate 1, the lower die plate 2, the molding cavity 3, the intermediate insert 4, the side insert 5, the top-less ejector assembly 6, the inner lifter plate 7, the lifter actuator 8, the lifter side plate 9, the top insert 10, the bottom insert 11, the horizontal runner 12, the translation slide 13, the inner guide block 14, the guide surface 15, the outer guide block 16, the lifter plate mounting cavity 17, the support base 18, the angled ejector rod 19, the angled ejector block 20, the support rod 21, the straight ejector block 22, the straight ejector rod 23, the core-pulling base 24, the core-pulling rod 25, etc. are used more herein, these terms are used only for the convenience of describing and explaining the essence of the present utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims (9)

1. The automobile bumper die ejection mechanism without the top plate comprises an upper die plate (1) and a lower die plate (2), and is characterized in that a molding cavity (3) is arranged between the upper die plate (1) and the lower die plate (2), a middle insert (4) and two symmetrically arranged side inserts (5) are arranged on the lower die plate (2), an ejection assembly (6) without the top plate connected with the two side inserts (5) is further arranged on the lower die plate (2), an inner lifting plate (7) positioned under the middle insert (4) is further arranged in the lower die plate (2), the inner lifting plate (7) is connected with the ejection assembly (6) without the top plate, an oblique top assembly connected with the middle insert (4) is arranged on the inner lifting plate (7),

the ejection assembly (6) without the top plate comprises four lifting drivers (8) which are distributed on the front side end face and the rear side end face of the lower die plate (2), lifting side plates (9) fixedly connected with the end parts of output shafts of the lifting drivers (8) are further arranged on the front side end face and the rear side end face of the lower die plate (2), the lifting side plates (9) are connected with the side inserts (5) through sliding block structures, and inclined guide structures connected with the side inserts (5) are further arranged on the lower die plate (2).

2. The ejection mechanism without top plate for the automobile bumper die according to claim 1, wherein the side insert (5) is formed by combining a top insert (10) and a bottom insert (11), the top insert (10) is connected with the middle insert (4), and the bottom insert (11) is connected with the lifting side plate (9).

3. The ejection mechanism without the top plate for the automobile bumper die according to claim 2, wherein the sliding block structure comprises a horizontal sliding groove (12) arranged on the lifting side plate (9), a translation sliding block (13) is connected in a sliding manner in the horizontal sliding groove (12), and the translation sliding block (13) is fixedly connected with the bottom insert (11).

4. The ejection mechanism without a top plate for the automobile bumper die according to claim 2, wherein the inclined guide structure comprises an inner guide block (14) fixed on the lower die plate (2), one side, far away from the middle insert (4), of the inner guide block (14) is provided with a guide surface (15) which is obliquely arranged, the inner side of the bottom insert (11) is in sliding fit with the guide surface (15), the lower die plate (2) is fixedly connected with an outer guide block (16), and the inner end surface of the outer guide block (16) is parallel to the guide surface (15) and is in sliding fit with the outer side wall of the bottom insert (11).

5. The ejection mechanism without a top plate for the automobile bumper die according to claim 1, wherein a lifting plate mounting cavity (17) is formed in the lower die plate (2), the middle insert (4) is arranged at the top of the lifting plate mounting cavity (17), two supporting seats (18) which are in sliding connection with the inner lifting plate (7) are fixedly connected in the lifting plate mounting cavity (17), and the bottom of the middle insert (4) is fixedly connected with the supporting seats (18).

6. The ejection mechanism without a top plate for the automobile bumper die according to claim 1, wherein the oblique top assembly comprises two oblique top rods (19) which are obliquely arranged and are opposite in oblique direction, and the bottom of each oblique top rod (19) is hinged with the inner lifting plate (7) and the top of each oblique top rod is fixedly connected with an oblique top block (20) which is in sliding connection with the middle insert (4).

7. The ejection mechanism without the top plate for the automobile bumper die according to claim 2, wherein the bottom of the top insert (10) is further connected with two support rods (21) in a sliding manner, and the bottoms of the support rods (21) are fixedly connected with the inner lifting plate (7).

8. The ejection mechanism without a top plate for the automobile bumper die according to claim 1, wherein the lower die plate (2) is further provided with two glue inlet flow passages, the glue inlet flow passages are arranged on a straight ejection block (22) which is in sliding connection with the lower die plate (2), and the bottom of the straight ejection block (22) is fixedly connected with the inner lifting plate (7) through a straight ejection rod (23).

9. The ejection mechanism without a top plate for the automobile bumper die according to claim 1, wherein three side core-pulling members connected with the side parts of the middle insert (4) are arranged on the lower die plate (2) side by side, each side core-pulling member comprises a core-pulling seat (24) and a core-pulling rod (25), the inner end of the core-pulling seat (24) abuts against the side parts of the middle insert (4) and is in sliding connection with the lower die plate (2), and the core-pulling rod (25) is obliquely fixed on the upper die plate (1) and is inserted into the core-pulling seat (24).