CN210308820U - A mould for car electrical apparatus box - Google Patents
A mould for car electrical apparatus box Download PDFInfo
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- CN210308820U CN210308820U CN201920734302.XU CN201920734302U CN210308820U CN 210308820 U CN210308820 U CN 210308820U CN 201920734302 U CN201920734302 U CN 201920734302U CN 210308820 U CN210308820 U CN 210308820U
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Abstract
The utility model discloses a mould for car electrical apparatus box uses at mould technical field, has solved the in-process that adopts traditional mould to produce, often can appear moulding plastics unsaturated, the technical problem of the condition of fracture appears easily, and its technical scheme main points are: the die comprises a front template, a front die core arranged on the front template, a rear template and a rear die core arranged on the rear template; the front template is provided with a front mold accommodating groove for accommodating a front mold core, and the front template can be also detachably provided with a front insert; the front die core and the front insert are both provided with glue inlet runners; the technical effect who has all is equipped with into gluey runner on the merciful and peaceful mold insert of front mould to make the plastics of hot melt can enter into the die cavity simultaneously from a plurality of runners of advancing to glue, guaranteed that the product can mould plastics plump, thereby guaranteed the quality of product.
Description
Technical Field
The utility model relates to the technical field of mold, in particular to a mold for automobile electrical box.
Background
The design of injection mold needs go on according to the concrete structure of product, and to some degree of depth and the more casing class products of strengthening rib, production is comparatively difficult.
Particularly, as shown in fig. 1 and 2, the automotive electrical box includes a housing 21 and a reinforcing rib 22 fixedly disposed on a side wall of the housing 21, and during a production process using a conventional mold, a situation that injection molding is not saturated and cracking is easily caused often occurs; the other production mode is that the upper part and the lower part are welded together, so that the structural strength of the produced product is not high enough, and the production efficiency is low; it is desirable to provide a mold to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a mould for car electrical apparatus box, its advantage is that all be equipped with on the benevolence of front mould and the preceding mold insert and advance gluey runner to make the plastics of hot melt can follow a plurality of runners of advancing to glue and enter into the die cavity simultaneously, guaranteed that the product can mould plastics fully, thereby guaranteed the quality of product.
The above technical purpose of the present invention can be achieved by the following technical solutions: a mould for an automobile electrical box comprises a front template, a front mould core arranged on the front template, a rear template and a rear mould core arranged on the rear template; the front template is provided with a front mold accommodating groove for accommodating a front mold core, and the front template can be also detachably provided with a front insert; and the front die core and the front insert are respectively provided with a glue inlet flow passage.
According to the technical scheme, the front template is used for installing the front mold core, the rear template is used for installing the rear mold core, the front mold accommodating groove is used for accommodating the front mold core, and the front mold core, the rear mold core and the front insert are all used for molding a product; the front insert is detachably connected with the front template, so that the front insert can be conveniently replaced when being worn, and the stability of a molded product is ensured; the plastic that advances that sets up on front mould benevolence and the preceding mold insert flows in for supplying the hot melt to the shaping product, a plurality of runner that advances that glue make the hot melt plastics can be more full fill in the molding cavity moreover, thereby can form the better product of quality, avoided moulding plastics unsaturated condition.
The utility model discloses further set up to: the front mold insert is provided with a plurality of front mold inserts around the front mold core, the front mold plate is provided with a limiting groove, and the front mold insert is provided with a limiting block placed in the limiting groove.
Through the technical scheme, the limiting blocks are matched with the limiting grooves, so that the front mold insert is not easy to fall off from the front mold insert, the front mold insert is more stable to be matched with the front mold insert, and a formed product is more stable.
The utility model discloses further set up to: and an avoiding gap is arranged between the outer side wall of the limiting block and the inner side wall of the limiting groove.
Through the technical scheme, the avoidance gap enables the outer side of the limiting block not to be abutted to the inner side wall of the limiting groove, the surface needing to be matched for machining is reduced, and therefore machining cost is well reduced.
The utility model discloses further set up to: the aperture of the glue inlet channel is gradually reduced towards the rear mold core, a point sprue is arranged at one end, close to the rear mold core, of the glue inlet channel, and a transition arc is arranged between the point sprue and the glue inlet channel.
Through the technical scheme, the glue inlet flow channel is in the shape of the circular truncated cone, so that the problem that hot-melt plastic is overstocked when flowing towards the rear mold core is avoided, the hot-melt plastic can enter a mold cavity formed between the rear mold core and the front mold core more quickly and stably, and a product can be molded more fully.
The utility model discloses further set up to: the positions of the front insert and the front mold core close to the spot gate are provided with bulges.
Through the technical scheme, the surface of the product is formed with the depressions due to the protrusions, so that the residues of the spot pouring gate after being pulled off cannot exceed the surface of the product, and the surface quality of the product is guaranteed.
The utility model discloses further set up to: the rear die core is provided with forming grooves for forming reinforcing ribs, the forming grooves are criss-cross and latticed, a plurality of forming convex blocks are formed between the forming grooves and are latticed, ejector pin holes are formed in the forming convex blocks, and ejector pins penetrate through the ejector pin holes.
By the technical scheme, the latticed reinforcing ribs are formed on the product through the latticed forming grooves, so that the structural strength of the product is improved better; the thimble hole that sets up on the shaping lug is used for wearing to establish the thimble for the thimble can be more stable ejecting from the die cavity with the product.
The utility model discloses further set up to: the back mould core is provided with a plurality of top pin holes.
Through above-mentioned technical scheme, the thimble hole is equipped with a plurality ofly to can be even a plurality of thimbles, after the product shaping, can be steady push up the product from the mould down, thereby better avoided the product again by the ejecting time because the atress is uneven and the fracture, also better avoided the product too closely and the condition that is difficult to take out with the mould laminating.
The utility model discloses further set up to: the front template is provided with a positioning block, and the rear template is provided with a positioning groove matched with the positioning block.
Through the technical scheme, the cooperation of locating piece and constant head tank for preceding template and back template complex are more accurate, thereby better improvement the cooperation precision of preceding template and back template, thereby better improvement the precision of the product of processing out.
The utility model discloses further set up to: fool-proof inclined planes are arranged on the front template and the rear template.
Through the technical scheme, when the fool-proof inclined planes on the front template and the rear template are positioned on the same plane, the front template and the rear template can be correctly installed, so that the correct installation of the front template and the rear template can be ensured, and the efficiency of die installation is improved.
To sum up, the utility model discloses following beneficial effect has:
1. the front die core and the front die insert are respectively provided with a glue inlet runner, when the product is subjected to injection molding again, hot-melt plastic can enter a die cavity formed between the front die core and the rear die core from a plurality of glue inlet runners simultaneously, and the product can be ensured to be more stable and full in injection molding;
2. the latticed forming grooves are used for forming latticed reinforcing ribs, so that the overall structural strength of the product is better enhanced, and the product is not easy to crack.
Drawings
FIG. 1 is a schematic view of the bottom of an electrical box of an automobile;
FIG. 2 is a schematic view of the interior of the electrical box of the vehicle;
FIG. 3 is an overall configuration diagram of the present embodiment;
FIG. 4 is an exploded view of the front mold plate, the front mold core, the rear mold plate and the rear mold core of the present embodiment;
FIG. 5 is a schematic structural view showing the connection relationship between the front insert and the front mold plate according to the present embodiment;
FIG. 6 is a schematic structural diagram of a glue inlet channel according to the present embodiment;
FIG. 7 is an enlarged schematic view of portion A of FIG. 6;
fig. 8 is a schematic structural diagram of a positional relationship between the rear mold core and the pin hole in the present embodiment.
Reference numerals: 1. a front template; 2. a front mold core; 3. a rear template; 4. a rear mold core; 5. a front template; 6. a front mold accommodating groove; 7. a front insert; 8. a glue inlet flow channel; 9. a limiting groove; 10. a limiting block; 11. avoiding the gap; 12. dotting a gate; 13. a transition arc; 14. a protrusion; 15. forming a groove; 16. forming a bump; 17. a thimble hole; 18. positioning blocks; 19. positioning a groove; 20. a fool-proof inclined plane; 21. a housing; 22. reinforcing ribs; 23. a front mold mounting plate; 24. and (4) mounting a rear mould plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b):
referring to fig. 3 and 4, a mold for an automotive electrical box includes a front mold plate 1, a rear mold plate 3, a front mold core 2 disposed on the front mold plate 1, and a rear mold core 4 disposed on the rear mold plate 3; a front mold accommodating groove 6 for accommodating the front mold core 2 is formed in the front mold plate 1, and a rear mold accommodating groove for accommodating the rear mold core 4 is formed in the rear mold; the front template 1 is connected with a front template mounting plate 23 through bolts, the front mold core 2 is connected with the front template mounting plate 23 through bolts, the rear template 3 is connected with a rear mold mounting plate 24 through bolts, and the rear mold core 4 is connected with the rear mold mounting plate 24 through bolts.
Referring to fig. 4, a positioning block 18 is fixed on the front template 1, a positioning groove 19 matched with the positioning block 18 is arranged on the rear template 3, and the positioning block 18 is matched with the positioning groove 19, so that the matching of the front template 1 and the rear template 3 is more accurate; all be equipped with on front forms 1 and the back template 3 and prevent slow-witted inclined plane 20, prevent that slow-witted inclined plane 20 sets up along front forms 1 or the thickness direction of back template 3, prevent that slow-witted inclined plane 20 is used for discerning the relative position when front forms 1 and the installation of back template 3, when the installation, when preventing slow-witted inclined plane 20 parallel and level on front forms 1 and the back template 3, front forms 1 and the installation that just can be correct of back template 3.
Referring to fig. 5 and 6, a front insert 7 is detachably arranged on the front template 1, and a limit groove 9 is formed in one side of the front template 1 close to the front template mounting plate 23; preceding mold insert 7 is last to be fixed with stopper 10, and stopper 10 sets up in spacing groove 9, and stopper 10 places the surperficial parallel and level of back stopper 10 and the surperficial parallel and level of preceding template 1 in spacing groove 9 in addition, and preceding template 1 is connected the back with preceding mould mounting panel 23, and preceding mould mounting panel 23 restricts stopper 10 on the preceding mould mold insert wherein with preceding template 1 to make preceding mold insert 7 can not drop from preceding template 1, can be stable carry out the shaping of product. Be equipped with between the lateral wall of stopper 10 and the inside wall of spacing groove 9 and dodge clearance 11 for when stopper 10 was put into spacing groove 9, stopper 10 lateral wall and spacing groove 9's inside wall contactless, thereby reduced the requirement of machining precision, saved the processing cost.
Referring to fig. 6 and 7, the front mold core 2 and the front insert 7 are both provided with a glue inlet flow passage 8, and the glue inlet flow passage 8 is in a circular truncated cone shape, that is, the cross section is in a trapezoid shape; the glue inlet flow passage 8 is gradually reduced towards the rear mold core 4, and the molten plastic enters a mold cavity for molding formed between the front mold core 2 and the rear mold core 4 along the glue inlet flow passage 8, so that the product is molded quickly. A point sprue 12 is arranged at one end of the glue inlet runner 8 close to the rear mold core 4, and a transition arc 13 is arranged between the point sprue 12 and the glue inlet runner 8; the molten plastic enters the glue inlet runner 8 and then reaches the point gate 12, and the transition arc 13 is in smooth transition, so that the molten plastic is prevented from being accumulated at the transition position; the front insert 7 and the front mold core 2 are provided with the bulges 14 at positions close to the point gate 12, the bulges 14 enable the surface of the product to be formed with the depressions, the formed plastic in the point gate 12 is broken and can have a small amount of residue on the surface of the product, and the depressions can contain the residual plastic, so that the influence on the product quality caused by the fact that the residual plastic protrudes out of the surface of the product is avoided.
Referring to fig. 1 and 8, the rear mold core 4 is provided with a plurality of molding grooves 15 for molding the reinforcing ribs 22, the molding grooves 15 are arranged in a criss-cross manner, the criss-cross molding grooves 15 are in a grid shape, the molding grooves 15 enable the surface of the product to be formed with the grid-shaped reinforcing ribs 22, and the grid-shaped reinforcing ribs 22 better increase the structural strength of the product and enable the product not to crack easily when being taken out; a plurality of forming convex blocks 16 are formed among the latticed forming grooves 15, thimble holes 17 penetrating through the rear die core 4 are formed in the forming convex blocks 16, thimbles penetrate through the thimble holes 17, and one end of each thimble facing the front die core 2 is flush with the surface of each forming convex block 16; after the product is molded, the ejector pins slide simultaneously, so that the product can be ejected out, and the product is more easily and stably demoulded.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (9)
1. A mould for an automobile electrical box comprises a front template (1), a front mould core (2) arranged on the front template (1), a rear template (3) and a rear mould core (4) arranged on the rear template (3);
the front mould is characterized in that a front mould accommodating groove (6) for accommodating a front mould core (2) is formed in the front mould plate (1), and a front insert (7) can be detachably arranged on the front mould plate (1); and the front mold core (2) and the front insert (7) are both provided with a glue inlet runner (8).
2. The mold for the automobile electrical box according to claim 1, wherein a plurality of front inserts (7) are arranged around the front mold core (2), the front mold plate (1) is provided with a limiting groove (9), and the front inserts (7) are provided with a limiting block (10) placed in the limiting groove (9).
3. The mold for the automobile electrical box according to claim 2, characterized in that an avoiding gap (11) is arranged between the outer side wall of the limiting block (10) and the inner side wall of the limiting groove (9).
4. The mold for the automobile electrical box according to claim 1, wherein the caliber of the glue inlet flow channel (8) is gradually reduced towards the rear mold core (4), a spot gate (12) is arranged at one end of the glue inlet flow channel (8) close to the rear mold core (4), and a transition arc (13) is arranged between the spot gate (12) and the glue inlet flow channel (8).
5. The mold for the automotive electrical box according to claim 2, characterized in that the front insert (7) and the front core (2) are provided with protrusions (14) at positions close to the spot gate (12).
6. The mold for the automobile electrical box according to claim 1, wherein the rear mold core (4) is provided with molding grooves (15) for molding the reinforcing ribs (22), the molding grooves (15) are criss-cross and are in a grid shape, a plurality of molding protrusions (16) are formed between the grid molding grooves (15), the molding protrusions (16) are provided with thimble holes (17), and thimbles are penetrated in the thimble holes (17).
7. The mold for the electrical box of the automobile as claimed in claim 6, wherein the plurality of the thimble holes (17) are uniformly formed on the rear mold core (4).
8. The mold for the automobile electrical box according to claim 1, wherein a positioning block (18) is arranged on the front mold plate (1), and a positioning groove (19) matched with the positioning block (18) is arranged on the rear mold plate (3).
9. The mold for the automobile electrical box according to claim 1, wherein foolproof slopes (20) are respectively formed on the front mold plate (1) and the rear mold plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920734302.XU CN210308820U (en) | 2019-05-21 | 2019-05-21 | A mould for car electrical apparatus box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920734302.XU CN210308820U (en) | 2019-05-21 | 2019-05-21 | A mould for car electrical apparatus box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210308820U true CN210308820U (en) | 2020-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920734302.XU Active CN210308820U (en) | 2019-05-21 | 2019-05-21 | A mould for car electrical apparatus box |
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| Country | Link |
|---|---|
| CN (1) | CN210308820U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117429012A (en) * | 2023-12-22 | 2024-01-23 | 厦门市松竹精密科技有限公司 | Injection mold for molding product with insert and production method thereof |
-
2019
- 2019-05-21 CN CN201920734302.XU patent/CN210308820U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117429012A (en) * | 2023-12-22 | 2024-01-23 | 厦门市松竹精密科技有限公司 | Injection mold for molding product with insert and production method thereof |
| CN117429012B (en) * | 2023-12-22 | 2024-03-08 | 厦门市松竹精密科技有限公司 | Injection mold for molding product with insert and production method thereof |
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