CN219213961U

CN219213961U - I-shaped strip internal drawing demoulding mechanism of injection mould of electric vehicle tail box

Info

Publication number: CN219213961U
Application number: CN202223605831.0U
Authority: CN
Inventors: 魏兆利
Original assignee: Taizhou Yutai Locomotive Parts Co ltd
Current assignee: Taizhou Yutai Locomotive Parts Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-06-20
Anticipated expiration: 2032-12-26

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to an I-shaped strip internal drawing demolding mechanism of an injection mold of an electric vehicle tail box. The utility model comprises an upper die frame and a lower die frame, wherein an upper die fixing plate is fixed above the upper die frame through bolts, a base plate is arranged at the bottom of the lower die frame, a lower die frame fixing plate is fixed at the bottom of the base plate, an ejection mechanism is arranged on the lower die frame and comprises an upper ejection plate and a lower ejection plate which are positioned above the lower die frame fixing plate.

Description

I-shaped strip internal drawing demoulding mechanism of injection mould of electric vehicle tail box

Technical Field

The utility model belongs to the technical field of injection molds, and relates to an I-shaped strip internal drawing demolding mechanism of an injection mold of an electric vehicle tail box.

Background

The electric motor car tail-box generally passes through injection moulding, the inside of electric motor car tail-box needs to form outer buckle, the hinge is detained, interior screw, mechanical lock installation lockhole and side screw, outer buckle simultaneously, the hinge is detained, interior screw needs to have the multiunit, in order to cover outward and mould the piece, mechanical lock and electric motor car automobile body installs, can not once only carry out injection moulding to outer buckle of electric motor car tail-box among the prior art, the hinge is detained, interior screw, mechanical lock installation lockhole and side screw, consequently, the processing step is more, be unfavorable for improving work efficiency, simultaneously because a plurality of outer buckles of moulding plastics of disposable needs shaping, the hinge is detained, interior screw and mechanical lock installation lockhole and side screw, thereby the manufacturing degree of difficulty of increase mould.

Disclosure of Invention

The utility model aims to solve the problems and provides an I-shaped strip internal drawing and demolding mechanism of an injection mold of an electric vehicle tail box.

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

the utility model provides an electric motor car tail box injection mold I shape strip internal drawing demoulding mechanism, includes die carrier and lower die carrier, the top of going up the die carrier is fixed with the mould fixed plate through the bolt, the backing plate is installed to the bottom of lower die carrier, the die carrier fixed plate down is fixed with to the backing plate, be provided with ejection mechanism on the lower die carrier, ejection mechanism is including the last ejector plate and the lower ejector plate that are located lower die carrier fixed plate top, ejection mechanism's bottom and last ejector plate and lower ejector plate activity hinge, ejection mechanism's top is located down in the die carrier, the inside fixed mounting of die carrier has the mould benevolence down, lower die carrier is formed with the shaping chamber through mould benevolence and last die carrier, be provided with outer buckle shaping portion, hinge buckle shaping portion and interior screw shaping portion on the mould benevolence.

In the above-mentioned electric motor car tail-box injection mold I shape strip internal drawing demoulding mechanism, the side slot of loosing core has been seted up to one side of going up the die carrier, install the side core pole of taking out in the side slot of loosing core, side core pole one end is located the outside of going up the die carrier, and the other end of side core pole of taking out extends into in the shaping die cavity, and the tip and the mould benevolence contact of side core pole of taking out.

In the above-mentioned electric motor car tail-box injection mold I-bar internal drawing demoulding mechanism, the tip of side core pole of taking out is provided with lockhole shaping portion.

In the above-mentioned electric motor car tail-box injection mold I shape strip internal drawing demoulding mechanism, ejection mechanism still includes oblique core bar, the bottom of oblique core bar is articulated with last ejector plate and lower ejector plate activity, down die carrier and mould benevolence are run through to the upper portion of oblique core bar, down die carrier and mould benevolence have been seted up and are used for holding the oblique groove of loosing core of oblique core bar, the top of oblique core bar is provided with side screw shaping portion.

In the above-mentioned electric motor car tail-box injection mold I-bar internal drawing demoulding mechanism, outer buckle shaping portion is provided with four groups, and outer buckle shaping portion passes through the two liang fixed mounting of spacer pin in the both sides of mould benevolence.

In the above-mentioned electric motor car tail-box injection mold I-bar internal drawing demoulding mechanism, the hinge is detained shaping portion and is provided with two sets of, and two sets of hinge are detained shaping portion and are all located mould benevolence one side, be provided with cylindrical fluting on the hinge is detained shaping portion.

In the aforesaid electric motor car tail-box injection mold I shape strip internal drawing of patterns mechanism, interior screw shaping portion is located the top of mould benevolence, the upper surface of mould benevolence is the structure of indent, interior screw shaping portion comprises shaping piece, no. two shaping pieces and No. three shaping pieces, and shaping piece, no. two shaping pieces and No. three shaping pieces are provided with two sets of on the mould benevolence symmetry.

In the above-mentioned electric motor car tail-box injection mold I shape strip internal drawing demoulding mechanism, the lockhole shaping portion comprises one-level ladder platform and second grade ladder platform, second grade ladder platform outwards is formed with square arch, and bellied surface flushes with second grade ladder platform.

In the I-shaped strip internal drawing and demolding mechanism of the electric vehicle tail box injection mold, the side screw hole forming part consists of a fourth forming block and a fifth forming block, a circular groove is formed in the fifth forming block, and a cylindrical forming rod is arranged on the groove.

In the I-shaped strip internal drawing and demolding mechanism of the electric vehicle tail box injection mold, the end faces of the fourth forming block and the fifth forming block are arc-shaped, and the fourth forming block and the fifth forming block are flush with the surface of the mold core.

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

according to the utility model, molten plastic is injected into a main runner of a mold through an injection molding machine, the plastic is molded in one step in a molding cavity through an outer buckle molding part, a hinge buckle molding part and an inner screw hole molding part, the outer buckle, the hinge buckle and the inner screw hole of the electric vehicle tail box are molded at one step, a lock hole molding part on a side-drawing core rod is used for molding a mechanical lock mounting hole of the electric vehicle tail box, and side screw hole molding parts on an inclined-drawing core rod are used for molding screw holes for mounting plastic parts on two sides of the electric vehicle tail box, so that injection molding of all parts of the electric vehicle tail box can be realized only by one-time injection molding, the technological process is simplified, and the production efficiency is improved.

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 diagram of an explosive structure according to the present utility model.

Fig. 2 is a schematic view of a partial explosion of the present utility model.

Fig. 3 is a schematic view of the overall structure of the present utility model.

FIG. 4 is a schematic diagram of the mold insert structure of the present utility model.

FIG. 5 is a schematic view of the side-pulling rod of the present utility model.

FIG. 6 is a schematic view of the structure of the inclined core pulling rod of the present utility model.

In the figure: 1. a die carrier is arranged; 2. a lower die frame; 3. an upper die fixing plate; 4. a backing plate; 5. a lower die carrier fixing plate; 6. an upper ejector plate; 7. a lower ejector plate; 8. a mold core; 9. an outer clip forming part; 10. a hinge buckle forming part; 11. an inner screw hole forming part; 12. a side core-pulling slot; 13. side-drawing core bar; 14. a keyhole forming part; 15. obliquely drawing the core rod; 16. an inclined core pulling groove; 17. a side screw hole forming part; 18. a first molding block; 19. a second molding block; 20. a third molding block; 21. a first stage step; 22. a second stage step; 23. a protrusion; 24. a fifth molding block; 25. a fourth molding block; 26. a groove; 27. a cylindrical shaped rod.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1-6, an inner drawing demolding mechanism for an injection mold I-shaped strip of an electric vehicle tail box comprises an upper mold frame 1 and a lower mold frame 2, wherein an upper mold fixing plate 3 is fixed above the upper mold frame 1 through bolts, a base plate 4 is installed at the bottom of the lower mold frame 2, a lower mold frame fixing plate 5 is fixed at the bottom of the base plate 4, an ejection mechanism is arranged on the lower mold frame 2 and comprises an upper ejection plate 6 and a lower ejection plate 7 which are positioned above the lower mold frame fixing plate 5, the bottom of the ejection mechanism is movably hinged with the upper ejection plate 6 and the lower ejection plate 7, the upper part of the ejection mechanism is positioned in the lower mold frame 2, a mold core 8 is fixedly installed inside the lower mold frame 2, a molding cavity is formed between the lower mold core 8 and the upper mold frame 1, and an outer clamping molding part 9, a hinge buckle molding part 10 and an inner screw hole molding part 11 are arranged on the mold core 8.

In this embodiment, the molten plastic is injected into the main runner of the mold by the injection molding machine, and the plastic is molded in one step in the molding cavity by the outer buckle molding part 9, the hinge buckle molding part 10 and the inner screw hole molding part 11 for the outer buckle, the hinge buckle and the inner screw hole of the electric car trunk.

Referring to fig. 1 and 3, a side core-pulling slot 12 is formed in one side of the upper mold frame 1, a side core-pulling rod 13 is installed in the side core-pulling slot 12, one end of the side core-pulling rod 13 is located outside the upper mold frame 1, the other end of the side core-pulling rod 13 extends into the molding cavity, and the end of the side core-pulling rod 13 contacts with the mold core 8.

The end of the side core pulling rod 13 is provided with a lock hole forming part 14.

In this embodiment, the lock hole forming portion 14 on the side core pulling rod 13 is used for forming a mechanical lock mounting hole of the electric vehicle trunk.

Specifically, referring to fig. 1 and 6, the ejector mechanism further includes an inclined core-pulling rod 15, the bottom of the inclined core-pulling rod 15 is movably hinged to the upper ejector plate 6 and the lower ejector plate 7, the upper portion of the inclined core-pulling rod 15 penetrates through the lower die frame 2 and the die core 8, inclined core-pulling grooves 16 for accommodating the inclined core-pulling rod are formed in the lower die frame 2 and the die core 8, and side screw hole forming portions 17 are formed in the top of the inclined core-pulling rod 15.

In this embodiment, the side screw hole forming portion 17 on the inclined core pulling rod 15 is used for forming screw holes for installing plastic parts on two sides of the tail box of the electric vehicle.

Specifically, as shown in fig. 1 and 2, the outer fastening forming parts 9 are provided with four groups, and the outer fastening forming parts 9 are fixedly installed on two sides of the mold core 8 by limiting pins.

In this embodiment, the outer clip forming portion 9 is fixed by a limiting pin to facilitate the disassembly of the mold.

Specifically, as shown in fig. 1 and 4, two sets of hinge buckle forming parts 10 are provided, and the two sets of hinge buckle forming parts 10 are located at one side of the mold core 8, and a cylindrical slot is provided on the hinge buckle forming part 10.

The inner screw hole forming part 11 is located at the top of the mold core 8, the upper surface of the mold core 8 is of a concave structure, the inner screw hole forming part 11 is composed of a first forming block 18, a second forming block 19 and a third forming block 20, and the first forming block 18, the second forming block 19 and the third forming block 20 are symmetrically arranged on the mold core 8.

Specifically, as shown in fig. 1 and 5, the lock hole forming portion 14 is composed of a primary step 21 and a secondary step 22, the secondary step 22 is outwardly formed with a square protrusion 23, and the surface of the protrusion 23 is flush with the secondary step 22.

Specifically, as shown in fig. 1 and 6, the side screw hole forming portion 17 is composed of a fourth forming block 25 and a fifth forming block 24, a circular groove 26 is formed in the fifth forming block 24, and a cylindrical forming rod 27 is disposed on the groove 26.

Specifically, as shown in fig. 1 and 6, the end surfaces of the fourth molding block 25 and the fifth molding block 24 are circular arc-shaped, and the fourth molding block 25 and the fifth molding block 24 are flush with the surface of the mold core 8.

The working principle of the utility model is as follows:

before injection molding starts, the upper die carrier 1 and the lower die carrier 2 are assembled, molten plastic is injected into a main runner of the die through an injection molding machine at the moment, the plastic is molded in a molding cavity through an outer clamping buckle molding part 9, a hinge buckle molding part 10 and an inner screw hole molding part 11 for one-time molding of an outer clamping buckle, a hinge buckle and an inner screw hole of an electric vehicle tail box, a lock hole molding part 14 on a side core pulling rod 13 is used for molding a mechanical lock mounting hole of the electric vehicle tail box, a side screw hole molding part 17 on an inclined core pulling rod 15 is used for molding screw holes of plastic parts mounted on two sides of the electric vehicle tail box, and thus injection molding of all parts of the electric vehicle tail box can be realized only by one-time injection molding, the technological process is simplified, and the production efficiency is improved.

After injection molding is finished, the ejection mechanism is controlled to move upwards, the molded product is ejected out through the oblique core rod 15, and the injection molding machine is simple in structure and convenient to use.

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.

Although 1, upper scaffold is used more herein; 2. a lower die frame; 3. an upper die fixing plate; 4. a backing plate; 5. a lower die carrier fixing plate; 6. an upper ejector plate; 7. a lower ejector plate; 8. a mold core; 9. an outer clip forming part; 10. a hinge buckle forming part; 11. an inner screw hole forming part; 12. a side core-pulling slot; 13. side-drawing core bar; 14. a keyhole forming part; 15. obliquely drawing the core rod; 16. an inclined core pulling groove; 17. a side screw hole forming part; 18. a first molding block; 19. a second molding block; 20. a third molding block; 21. a first stage step; 22. a second stage step; 23. a protrusion; 24. a fifth molding block; 25. a fourth molding block; 26. a groove; 27. cylindrical shaped rod, etc., but does not exclude the possibility of using other terms. These terms are only used to more conveniently describe and explain the nature of the utility model and should be construed in a manner consistent with their spirit and scope.

Claims

1. The utility model provides an interior drawing of patterns mechanism of electric motor car tail-box injection mold I shape strip, includes die carrier (1) and lower die carrier (2), its characterized in that, the top of going up die carrier (1) is fixed with mould fixed plate (3) through the bolt, backing plate (4) are installed to the bottom of lower die carrier (2), the bottom of backing plate (4) is fixed with die carrier fixed plate (5) down, be provided with ejection mechanism on lower die carrier (2), ejection mechanism includes last ejector plate (6) and lower ejector plate (7) that are located lower die carrier fixed plate (5) top, ejection mechanism's bottom and last ejector plate (6) and lower ejector plate (7) swing joint, the top of ejection mechanism is located lower die carrier (2), die carrier (2) inside fixed mounting has mould benevolence (8), die carrier (2) are formed with into the die cavity through mould benevolence (8) and last die carrier (1), be provided with on mould benevolence (8) outside clip shaping portion (9), hinge knot portion (10) and interior shaping portion (11).

2. The electric vehicle tail box injection mold I-bar internal drawing demolding mechanism according to claim 1, wherein a side core-pulling slot (12) is formed in one side of the upper mold frame (1), a side core-pulling rod (13) is arranged in the side core-pulling slot (12), one end of the side core-pulling rod (13) is positioned outside the upper mold frame (1), the other end of the side core-pulling rod (13) extends into a molding cavity, and the end part of the side core-pulling rod (13) is in contact with the mold core (8).

3. The electric vehicle trunk injection mold spool internal drawing and demolding mechanism according to claim 2, characterized in that the end of the side drawing core bar (13) is provided with a lock hole molding part (14).

4. The electric vehicle tail box injection mold I-bar internal drawing demolding mechanism according to claim 3, characterized in that the ejection mechanism further comprises an oblique drawing core bar (15), the bottom of the oblique drawing core bar (15) is movably hinged with the upper ejector plate (6) and the lower ejector plate (7), the upper part of the oblique drawing core bar (15) penetrates through the lower mold frame (2) and the mold core (8), the lower mold frame (2) and the mold core (8) are provided with an oblique core pulling groove (16) for accommodating the oblique drawing core bar, and the top of the oblique drawing core bar (15) is provided with a side screw hole forming part (17).

5. The inner drawing and demolding mechanism for the I-shaped strip of the injection mold of the electric vehicle tail box according to claim 4, wherein four groups of outer clamping and buckling molding parts (9) are arranged, and the outer clamping and buckling molding parts (9) are fixedly arranged on two sides of the mold core (8) through limiting pins in pairs.

6. The electric vehicle trunk injection mold I-bar internal drawing demolding mechanism according to claim 5, wherein two groups of hinge buckle forming parts (10) are arranged, the two groups of hinge buckle forming parts (10) are positioned on one side of the mold core (8), and a cylindrical groove is formed in the hinge buckle forming part (10).

7. The electric vehicle tail box injection mold I-bar internal drawing demolding mechanism according to claim 6, wherein the internal screw hole forming part (11) is located at the top of the mold core (8), the upper surface of the mold core (8) is of an indent structure, the internal screw hole forming part (11) is composed of a first forming block (18), a second forming block (19) and a third forming block (20), and the first forming block (18), the second forming block (19) and the third forming block (20) are symmetrically provided with two groups on the mold core (8).

8. The electric vehicle trunk injection mold spool internal drawing and demolding mechanism according to claim 7, characterized in that the lock hole forming part (14) is composed of a primary step table (21) and a secondary step table (22), the secondary step table (22) is outwardly formed with square protrusions (23), and the surfaces of the protrusions (23) are flush with the secondary step table (22).

9. The electric vehicle trunk injection mold spool internal drawing and demolding mechanism according to claim 8, characterized in that the side screw hole forming part (17) is composed of a fourth forming block (25) and a fifth forming block (24), a circular groove (26) is formed in the fifth forming block (24), and a cylindrical forming rod (27) is arranged on the groove (26).

10. The drawing and demolding mechanism in the I-shaped bar of the injection mold of the electric vehicle tail box according to claim 9, wherein the end surfaces of the fourth molding block (25) and the fifth molding block (24) are arc-shaped, and the surfaces of the fourth molding block (25) and the fifth molding block (24) are flush with the surface of the mold core (8).