CN211221807U - Multidirectional secondary injection mold combined type cambered surface ejection mechanism for front lamp cover of electric vehicle - Google Patents

Abstract

The utility model belongs to the technical field of the mould, especially, relate to a diversified post injection mould combination formula cambered surface ejection mechanism of electric motor car headlight cover. The utility model discloses, including last mould and lower mould, when the compound die, go up mould and lower mould and be close to each other and form the die cavity, the lower mould be close to last mould one end and be equipped with electric lampshade and insert. The utility model discloses a set up the perpendicular hole of moulding plastics and the inclined plane hole of moulding plastics, pour into the die cavity in step with the melting material, mould plastics through diversified multi-angle, but synchronous forming electric motor car lamp shade horizontal plane and lateral part inclined plane, electric motor car lamp shade lateral part wall is too thick in avoiding appearing, the speed and the accuracy of moulding plastics have been improved, after the completion of moulding plastics, the straight thimble of synchronous motion, oblique ejector pin and lamp shade cambered surface kicking block, it is ejecting with the product, straight thimble and electric motor car lamp shade horizontal plane looks butt, the scope is great, it is ejecting effectual, lamp shade cambered surface kicking block and product cambered surface looks butt, avoid causing deformation to the product cambered surface at ejecting in-process, the.

Description

Multidirectional secondary injection mold combined type cambered surface ejection mechanism for front lamp cover of electric vehicle

Technical Field

The utility model belongs to the technical field of the mould, a diversified post injection mould combination formula cambered surface ejection mechanism of electric motor car headlight cover is related to.

Background

With the development of the molding industry and the continuous innovation of the technology, the requirements of people on the aesthetic quality, the product functionality and the added value of injection molding products are changed. The novel electric vehicle headlamp frame is characterized in that injection molding products need to be subjected to secondary injection molding, multiple times of injection molding or multi-material injection molding to change the attractiveness, functionality and added value of the products, the existing electric vehicle headlamp frame is generally subjected to secondary injection molding, the side wall of the electric vehicle headlamp frame is easily too thick in the molding process, secondary treatment is needed, the injection molding accuracy is poor, and meanwhile, the arc surface of the electric vehicle headlamp frame is deformed in the ejection process, so that the surface quality of the products is poor.

In order to overcome the defects of the prior art, people continuously explore and propose various solutions, for example, a secondary injection mold is disclosed in the chinese patent application No.: 201420078975.1], the injection molding machine comprises a first movable die, a second movable die, a fixed die and a conveying device for circularly switching the second movable die and the first movable die to be aligned with the fixed die, wherein a fixed die cavity is arranged on a die core of the fixed die, a first movable die cavity is arranged on a die core of the first movable die, and the first movable die cavity and the fixed die cavity are matched to enclose a one-step molding cavity for molding a visible region of an injection molding product; one side of the mold core of the second movable mold is provided with an inclined surface, the inclined surface is in sliding fit with a sliding block mechanism for barb demolding, a sliding block cavity is arranged on a sliding block of the sliding block mechanism, and the sliding block cavity and the fixed mold cavity are matched to enclose a secondary molding cavity for molding an injection molding product barb region; the first movable die and the second movable die are both mounted on the conveying device and are connected with the conveying device in a driving mode. The utility model discloses can be to the smooth drawing of patterns of the injection moulding product that has the barb to avoid forming the parting line on this basis. But this scheme still has electric motor car headlight cover lateral wall shaping in the forming process, need carry out secondary treatment, and the accuracy of moulding plastics is relatively poor, causes deformation to electric motor car headlight cover cambered surface at ejecting in-process easily simultaneously, leads to the relatively poor defect of product surface quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above problem, a diversified overmold combination formula cambered surface ejection mechanism is provided to electric vehicle front light cover.

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

the utility model provides a diversified post injection mould combination formula cambered surface ejection mechanism of electric motor car headlight cover, includes mould and lower mould, when the compound die, goes up mould and lower mould and is close to each other and forms the die cavity, the lower mould be close to last mould one end and be equipped with electric motor car headlight cover and insert, last mould in be equipped with the perpendicular hole of moulding plastics, last mould in still be equipped with the inclined plane hole of moulding plastics, the perpendicular inject the position of hole and inclined plane hole of moulding plastics corresponding with the die cavity respectively, the lower mould in be equipped with and follow the combination formula thimble subassembly that is close to die cavity one side or keeps away.

In foretell diversified overmold combination formula cambered surface ejection mechanism of electric vehicle headlight cover, combination formula thimble subassembly include a plurality of straight thimbles that set up in the lower mould, straight thimble can be followed the direction of being close to or keeping away from the die cavity and be reciprocal linear motion, the lower mould in still be equipped with a plurality of oblique ejector pins of lower mould central line symmetry of following, oblique ejector pin top be equipped with lamp shade cambered surface kicking block.

In the multidirectional secondary injection mold combined arc surface ejection mechanism for the electric vehicle headlamp shade, the straight ejector pins are symmetrically arranged along the central line of the lower mold, the axial line of the inclined ejector pin and the axial line of the straight ejector pin form an acute angle, and the top of the arc surface top block of the lampshade is arc-shaped.

In foretell electric vehicle lampshade diversified secondary injection mould combination formula cambered surface ejection mechanism, the lower mould in be equipped with a plurality of straight thimble spacing holes along the interior central line symmetry of lower mould, straight thimble be located the spacing downthehole shape that just straight thimble matches with the spacing hole of straight thimble spacing hole and adapt, the lower mould in still be equipped with oblique ejector pin spacing spout, oblique ejector pin be located oblique ejector pin spacing spout and the shape of oblique ejector pin and oblique ejector pin spacing spout match and adapt.

In the multidirectional secondary injection mold combined arc ejection mechanism for the electric vehicle headlight cover, the vertical surface sub-runners are arranged at one end of the lower mold close to the upper mold, and when the mold is closed, the vertical surface injection molding holes are communicated with the vertical surface sub-runners.

In the multidirectional secondary injection mold combined arc surface ejection mechanism for the electric vehicle headlamp shade, one end of the lower mold, which is close to the upper mold, is further provided with the lateral part shunting blocks, lateral part shunting channels are arranged in the lateral part shunting blocks, the lateral part shunting channels are distributed in an annular array along the central points of the lateral part shunting blocks, and the lateral part shunting channels correspond to the positions of the inclined surface injection molding holes.

In the multidirectional secondary injection mold combined arc surface ejection mechanism for the electric vehicle headlamp shade, the upper mold is internally provided with a plurality of upper mold positioning shaft holes distributed in a rectangular array along the central point of the upper mold, and the lower mold is internally provided with a plurality of lower mold positioning shaft holes distributed in a rectangular array along the central point of the lower mold.

In the multidirectional secondary injection mold combined arc surface ejection mechanism for the electric vehicle headlamp shade, the lower mold positioning shaft hole corresponds to the upper mold positioning shaft hole in position and is matched in shape, the lower mold positioning shaft hole is provided with the anti-skidding sleeve close to one side of the upper mold, the anti-skidding sleeve is provided with a plurality of fixing rings which are symmetrical along the center line of the anti-skidding sleeve, and the fixing rings are connected with the lower mold.

In the multidirectional secondary injection mold combined arc surface ejection mechanism for the electric vehicle headlamp shade, the top of the lower mold is provided with a plurality of mold closing positioning blocks which are symmetrical along the central line of the lower mold, the bottom of the upper mold is provided with a plurality of mold closing positioning grooves which are symmetrical along the central line of the upper mold, and the mold closing positioning blocks correspond to the mold closing positioning grooves in position and are matched in shape.

In the multidirectional secondary injection mold combined arc surface ejection mechanism for the electric vehicle headlamp shade, the die assembly positioning block is provided with a plurality of precision butt joint shafts which are symmetrical along the central line of the die assembly positioning block, the top of the die assembly positioning groove is connected with a plurality of butt joint shaft insertion holes which are symmetrical along the central line of the die assembly positioning groove, and the precision butt joint shafts are matched with the shapes of the butt joint shaft insertion holes.

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

1. the utility model discloses a set up the perpendicular hole of moulding plastics and the inclined plane hole of moulding plastics, pour into the die cavity in step with the melting material, mould plastics through diversified multi-angle, but synchronous forming electric motor car lamp shade horizontal plane and lateral part inclined plane, electric motor car lamp shade lateral part wall is too thick in avoiding appearing, the speed and the accuracy of moulding plastics have been improved, after the completion of moulding plastics, the straight thimble of synchronous motion, oblique ejector pin and lamp shade cambered surface kicking block, it is ejecting with the product, straight thimble and electric motor car lamp shade horizontal plane looks butt, the scope is great, it is ejecting effectual, lamp shade cambered surface kicking block and product cambered surface looks butt, avoid causing deformation to the product cambered surface at ejecting in-process, the.

2. The utility model discloses a set up perpendicular subchannel and lateral part subchannel for the speed of moulding plastics of electric motor car lamp shade horizontal plane and lateral part has shortened production cycle.

Additional advantages, objects, and features of the invention 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 invention.

Drawings

Fig. 1 is an exploded schematic view of the present invention.

Fig. 2 is an exploded view in another direction of the present invention.

FIG. 3 is a schematic structural view of the combined thimble assembly.

Fig. 4 is a schematic structural view of the upper die.

Fig. 5 is a schematic structural view of the lower mold.

Fig. 6 is a schematic view of the structure of the lower mold in the other direction.

In the figure: the device comprises an upper die 1, a lower die 2, an electric lampshade insert 3, a vertical plane injection hole 4, an inclined plane injection hole 5, a combined thimble assembly 6, a straight thimble 7, an inclined thimble 8, a lampshade cambered surface ejector block 9, a straight thimble limiting hole 10, an inclined thimble limiting sliding groove 11, a vertical plane sub-flow channel 12, a side sub-flow channel 13, a side sub-flow channel 14, an upper die positioning shaft hole 15, a lower die positioning shaft hole 16, an anti-slip sleeve 17, a fixing ring 18, a die assembly positioning block 19, a die assembly positioning groove 20, a precision butt shaft 21 and a butt shaft jack 22.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the multi-azimuth post injection mold combined arc surface ejection mechanism for the front lamp cover of the electric vehicle comprises an upper mold 1 and a lower mold 2, wherein the upper mold 1 and the lower mold 2 are close to each other to form a cavity when the molds are closed, one end of the lower mold 2 close to the upper mold 1 is provided with an electric lamp cover insert 3, the upper mold 1 is internally provided with a vertical surface injection hole 4, the upper mold 1 is internally provided with an inclined surface injection hole 5, the vertical surface injection hole 4 and the inclined surface injection hole 5 are respectively corresponding to the position of the cavity, and the lower mold 2 is internally provided with a combined ejector pin assembly 6 capable of reciprocating along one side close to the.

In this embodiment, when carrying out the secondary and moulding plastics, insert 3 with electronic lamp shade earlier and put into to lower mould 2 on, will go up mould 1 and lower mould 2 this moment and hug closely each other and be close to, form the die cavity, at the in-process of moulding plastics, the die cavity is injected into from perpendicular injection molding hole 4 and inclined plane injection molding hole 5 in the melting material, through moulding plastics of diversified multi-angle, but synchronous molding electronic lamp shade horizontal plane and lateral part inclined plane, avoid appearing electronic lamp shade lateral part wall thicknessly, the speed and the accuracy of moulding plastics have been improved, after the completion of moulding plastics, it is ejecting with the product through removing combination formula thimble assembly 6, at ejecting in-process, combination formula thimble assembly 6 and product cambered surface looks butt, avoid causing deformation to the product cambered surface at ejecting in-process, the.

Referring to fig. 1, 2 and 3, the combined thimble assembly 6 includes a plurality of straight thimbles 7 disposed in the lower mold 2, the straight thimbles 7 can reciprocate linearly along the direction close to or far away from the cavity, the lower mold 2 is further provided with a plurality of oblique thimbles 8 symmetrical along the central line of the lower mold 2, and the tops of the oblique thimbles 8 are provided with lampshade arc-surface ejector blocks 9.

Specifically speaking, in the ejection process, the product is ejected out through the straight thimble 7, the inclined ejector rod 8 and the lamp shade arc surface ejector block 9 which are synchronously moved, the straight thimble 7 is abutted to the horizontal plane of the electric vehicle lamp shade, the range is large, the ejection effect is good, the lamp shade arc surface ejector block 9 is abutted to the product arc surface, the deformation of the product arc surface in the ejection process is avoided, and the quality of an injection molding product is improved.

As shown in a combined figure 3, the straight ejector pins 7 are symmetrically arranged along the central line of the lower die 2, the included angle between the axial line of the inclined ejector pin 8 and the axial line of the straight ejector pin 7 is an acute angle, and the top of the lampshade cambered surface ejector block 9 is arc-shaped.

In this embodiment, the contained angle between the axial lead of oblique ejector pin 8 and the 7 axial leads of straight thimble is the acute angle, mutually noninterfere and oblique ejector pin 8 slope setting at ejecting in-process, avoids when ejecting with the product cambered surface butt, destroys the product cambered surface, has improved the quality on product surface, has reduced the fish tail.

Referring to fig. 3 and 6, the lower die 2 is provided with a plurality of straight thimble limiting holes 10 which are symmetrical along the central line in the lower die 2, the straight thimble 7 is positioned in the straight thimble limiting hole 10, the straight thimble 7 is matched with the straight thimble limiting hole 10 in shape, the lower die 2 is further provided with an oblique thimble limiting sliding groove 11, the oblique thimble 8 is positioned in the oblique thimble limiting sliding groove 11, and the oblique thimble 8 is matched with the oblique thimble limiting sliding groove 11 in shape.

In this embodiment, the straight thimble spacing hole 10 plays a limiting role in the straight thimble 7, ensures that the straight thimble 7 can only move along the straight thimble spacing hole 10 track in the ejection process, improves the ejection accuracy, and the oblique ejector pin spacing chute 11 plays a limiting role in the oblique ejector pin 8, ensures that the oblique ejector pin 8 can only move along the oblique ejector pin spacing chute 11 track, and further improves the ejection accuracy.

Referring to fig. 5, one end of the lower die 2 close to the upper die 1 is provided with a vertical surface runner 12, and when the dies are closed, the vertical surface injection molding hole 4 is communicated with the vertical surface runner 12.

In the embodiment, in the injection molding process, the molten material injected from the vertical surface injection molding hole 4 flows into the vertical surface sub-channel 12, and flows into the cavity after flowing through the vertical surface sub-channel 12, so that the injection molding speed is increased, and the horizontal surface of the electric vehicle lampshade is molded.

Referring to fig. 5, one end of the lower mold 2 close to the upper mold 1 is further provided with a side shunting block 13, side shunting channels 14 are arranged in the side shunting block 13, the side shunting channels 14 are distributed in an annular array along the central point of the side shunting block 13, and the side shunting channels 14 correspond to the positions of the inclined surface injection molding holes 5.

In the embodiment, in the injection molding process, the molten material injected from the inclined surface injection molding hole 5 flows into the side part flow block 13, enters the side part runner 14 and then flows into the side part cavity, so that the side part of the electric vehicle lampshade is synchronously molded, and the injection molding efficiency is improved.

With reference to fig. 4 and 6, the upper die 1 is provided with a plurality of upper die positioning shaft holes 15 distributed in a rectangular array along the central point of the upper die 1, and the lower die 2 is provided with a plurality of lower die positioning shaft holes 16 distributed in a rectangular array along the central point of the lower die 2.

In this embodiment, during mold closing, the upper mold positioning shaft hole 15 and the lower mold positioning shaft hole 16 are close to each other until they are in close contact with each other, and the positioning shaft is inserted into the upper mold positioning shaft hole 15 and the lower mold positioning shaft hole 16 to position the upper mold 1 and the lower mold 2.

Referring to fig. 4, 5 and 6, the lower mold positioning shaft hole 16 corresponds to the upper mold positioning shaft hole 15 in position and has a shape matching with the upper mold positioning shaft hole 15, an anti-slip sleeve 17 is disposed on one side of the lower mold positioning shaft hole 16 close to the upper mold 1, a plurality of fixing rings 18 symmetrical to each other along the center line of the anti-slip sleeve 17 are disposed on the anti-slip sleeve 17, and the fixing rings 18 are connected with the lower mold 2.

In this embodiment, the fixing ring 18 fixes the anti-slip sleeve 17, so as to prevent the anti-slip sleeve 17 from falling off during the mold closing or opening process, and after the anti-slip sleeve 17 is inserted into the positioning shaft, the friction force between the anti-slip sleeve 17 and the positioning shaft is increased, so as to achieve the anti-slip effect.

Referring to fig. 4 and 5, a plurality of mold closing positioning blocks 19 symmetrical along the center line of the lower mold 2 are arranged at the top of the lower mold 2, a plurality of mold closing positioning grooves 20 symmetrical along the center line of the upper mold 1 are arranged at the bottom of the upper mold 1, and the mold closing positioning blocks 19 correspond to the mold closing positioning grooves 20 in position and are matched in shape.

Specifically, when the mold is closed, the mold closing positioning block 19 is inserted into the mold closing positioning groove 20 to play a role in clamping and matching, so that the upper mold 1 and the lower mold 2 are prevented from rotating circumferentially in the injection molding process, and the injection molding accuracy is improved.

As shown in fig. 4 and 5, the mold closing positioning block 19 is provided with a plurality of precision docking shafts 21 which are symmetrical along the central line of the mold closing positioning block 19, the top of the mold closing positioning groove 20 is connected with a plurality of docking shaft insertion holes 22 which are symmetrical along the central line of the mold closing positioning groove 20, and the precision docking shafts 21 are matched with the docking shaft insertion holes 22 in shape.

In this embodiment, after the compound die locating piece 19 is inserted to the compound die locating slot 20, the precision butt joint shaft 21 is inserted to the butt joint shaft jack 22, accomplishes the cooperation of second grade joint, has further improved the joint counterpoint effect, ensures to go up mould 1 and lower mould 2 and does not take place circumferential direction, has further improved the accuracy of moulding plastics.

The utility model discloses a theory of operation is:

when carrying out the secondary and moulding plastics, put into 3 with electric lampshade inserts on lower mould 2 earlier, will go up mould 1 and lower mould 2 this moment and hug closely each other and be close to, compound die locating piece 19 inserts in compound die constant head tank 20, play screens adaptation effect, avoid moulding plastics the in-process, it takes place circumferential direction to go up mould 1 and lower mould 2, the precision is to the axle 21 and insert to butt joint axle jack 22, accomplish the cooperation of second grade joint, the joint counterpoint effect has further been improved, ensure to go up mould 1 and lower mould 2 and do not take place circumferential direction, the accuracy of moulding plastics has further been improved.

Go up and form the die cavity between mould 1 and the lower mould 2, in the process of moulding plastics, the mould cavity is injected from perpendicular injection molding hole 4 and inclined plane injection molding hole 5 to the melting material that injects from perpendicular injection molding hole 4 flows into perpendicular subchannel 12, the melting material flows into in the die cavity behind perpendicular subchannel 12 of flowing through, shape electric vehicle lamp shade horizontal plane, the melting material that injects from inclined plane injection molding hole 5 flows into lateral part class piece 13, flow into lateral part die cavity after entering into lateral part subchannel 14, shape electric vehicle lamp shade lateral part in step, the efficiency of moulding plastics has been improved, through moulding plastics of diversified multi-angle, but synchronous shaping electric vehicle lamp shade horizontal plane and lateral part inclined plane, avoid appearing electric vehicle lamp shade lateral part wall thicknessly, the speed and the accuracy of moulding plastics have been improved.

After the injection molding is completed, the product is ejected out through the synchronous moving straight ejector pin 7, the inclined ejector pin 8 and the lamp shade arc-surface ejector block 9, the straight ejector pin 7 is abutted to the horizontal plane of the electric vehicle lamp shade, the range is large, the ejection effect is good, the lamp shade arc-surface ejector block 9 is abutted to the product arc surface, deformation to the product arc surface in the ejection process is avoided, and the quality of the injection molded product is improved.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein will be apparent to those skilled in the art without departing from the spirit of the invention.

Although terms such as the upper die 1, the lower die 2, the electric lampshade insert 3, the vertical plane injection hole 4, the inclined plane injection hole 5, the combined thimble assembly 6, the straight thimble 7, the inclined thimble 8, the lampshade cambered surface top block 9, the straight thimble limit hole 10, the inclined thimble limit chute 11, the vertical plane branch channel 12, the side flow block 13, the side branch channel 14, the upper die positioning shaft hole 15, the lower die positioning shaft hole 16, the anti-slip sleeve 17, the fixing ring 18, the die assembly positioning block 19, the die assembly positioning groove 20, the precision butt shaft 21 and the butt shaft jack 22 are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims (10)

1. The utility model provides a diversified post injection mould combination formula cambered surface ejection mechanism of electric motor car headlight cover, includes mould (1) and lower mould (2), when the compound die, goes up mould (1) and lower mould (2) and is close to each other and form the die cavity, a serial communication port, lower mould (2) be close to mould (1) one end and be equipped with electric motor car headlight cover (3) of inserting, last mould (1) in be equipped with perpendicular injection hole (4), last mould (1) in still be equipped with inclined plane injection hole (5), perpendicular injection hole (4) and inclined plane injection hole (5) corresponding with the position of die cavity respectively, lower mould (2) in be equipped with and follow combination formula thimble assembly (6) that are close to die cavity one side or keep away from die cavity one side reciprocating motion.

2. The electric vehicle headlight cover multi-azimuth post-injection mold combined type arc surface ejection mechanism according to claim 1, wherein the combined type ejector pin assembly (6) comprises a plurality of straight ejector pins (7) arranged in the lower mold (2), the straight ejector pins (7) can do reciprocating linear motion along a direction close to or far away from the cavity, a plurality of inclined ejector rods (8) symmetrical along the central line of the lower mold (2) are further arranged in the lower mold (2), and a lampshade arc surface ejector block (9) is arranged at the top of each inclined ejector rod (8).

3. The electric vehicle headlight cover multi-azimuth post-injection mold combined type arc ejection mechanism according to claim 2, wherein the straight ejector pins (7) are symmetrically arranged along a center line of the lower mold (2), an included angle between an axial line of the inclined ejector pin (8) and an axial line of the straight ejector pin (7) is an acute angle, and the top of the lampshade arc ejection block (9) is arc-shaped.

4. The electric vehicle headlight cover multi-azimuth post-injection mold combined arc surface ejection mechanism according to claim 3, wherein a plurality of straight thimble limiting holes (10) symmetrical along a central line in the lower mold (2) are arranged in the lower mold (2), the straight thimbles (7) are positioned in the straight thimble limiting holes (10) and the straight thimbles (7) are matched with the shapes of the straight thimble limiting holes (10), an oblique thimble limiting sliding groove (11) is further arranged in the lower mold (2), the oblique thimbles (8) are positioned in the oblique thimble limiting sliding groove (11) and the oblique thimbles (8) are matched with the shapes of the oblique thimble limiting sliding groove (11).

5. The electric vehicle headlight cover multi-azimuth post-injection mold combined arc ejection mechanism according to claim 1, wherein one end of the lower mold (2) close to the upper mold (1) is provided with a vertical surface runner (12), and when the molds are closed, the vertical surface injection molding hole (4) is communicated with the vertical surface runner (12).

6. The electric vehicle headlight cover multi-azimuth post-injection mold combined arc ejection mechanism according to claim 1, wherein one end of the lower mold (2) close to the upper mold (1) is further provided with a side shunting block (13), the side shunting block (13) is internally provided with side shunting channels (14), the side shunting channels (14) are distributed along the central point of the side shunting block (13) in an annular array, and the side shunting channels (14) correspond to the positions of the inclined surface injection molding holes (5).

7. The electric vehicle headlight cover multi-azimuth post-injection mold combined arc ejection mechanism according to claim 1, wherein a plurality of upper mold positioning shaft holes (15) are arranged in the upper mold (1) and distributed in a rectangular array along the central point of the upper mold (1), and a plurality of lower mold positioning shaft holes (16) are arranged in the lower mold (2) and distributed in a rectangular array along the central point of the lower mold (2).

8. The electric vehicle headlight cover multi-azimuth post-injection mold combined arc ejection mechanism according to claim 7, wherein the lower mold positioning shaft hole (16) corresponds to the upper mold positioning shaft hole (15) in position and matches in shape, the lower mold positioning shaft hole (16) is provided with an anti-slip sleeve (17) on one side close to the upper mold (1), the anti-slip sleeve (17) is provided with a plurality of fixing rings (18) symmetrical along the center line of the anti-slip sleeve (17), and the fixing rings (18) are connected with the lower mold (2).

9. The electric vehicle headlight cover multi-azimuth post-injection mold combined arc ejection mechanism according to claim 1, wherein a plurality of mold closing positioning blocks (19) symmetrical along a center line of the lower mold (2) are arranged at the top of the lower mold (2), a plurality of mold closing positioning grooves (20) symmetrical along a center line of the upper mold (1) are arranged at the bottom of the upper mold (1), and the mold closing positioning blocks (19) correspond to the mold closing positioning grooves (20) in position and are matched in shape.

10. The electric vehicle headlight cover multi-azimuth post-injection mold combined arc ejection mechanism according to claim 9, wherein a plurality of precision butt shafts (21) symmetrical along a center line of the mold closing positioning block (19) are disposed on the mold closing positioning block (19), a plurality of butt shaft insertion holes (22) symmetrical along the center line of the mold closing positioning groove (20) are connected to the top of the mold closing positioning groove (20), and the precision butt shafts (21) and the butt shaft insertion holes (22) are matched in shape.

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