CN209775400U

CN209775400U - Injection mold for automobile front bumper

Info

Publication number: CN209775400U
Application number: CN201920069658.6U
Authority: CN
Inventors: 雷威
Original assignee: Suzhou Sansheng Famous Mould Co Ltd
Current assignee: Suzhou Sansheng Famous Mould Co Ltd
Priority date: 2019-01-16
Filing date: 2019-01-16
Publication date: 2019-12-13
Anticipated expiration: 2029-01-16

Abstract

the utility model discloses a car front bumper injection mold, including die holder and upper die base, the upper end surface pin joint of die holder has the die board, the lower extreme surface pin joint of upper die base has the convex die board, department is provided with the runner seat in the middle of the upper end surface of upper die base, the inside of runner seat runs through there is the runner, the lower extreme of runner is provided with the sprue, the lower extreme pin joint of convex die board has the terrace die mold insert, be provided with the die cavity between convex die board and the concave die board, the inside of concave die board is close to the outside of die cavity and is provided with along with shape cooling water course. The utility model discloses a be provided with a series of structures and make this device can shorten the injection time effectively in the use, can make the molten fluid arrive each position of die cavity simultaneously as far as possible, improved the quality of injection molding to can improve cooling efficiency and effect effectively, make the injection molding obtain more even cooling, be favorable to the shaping work of injection molding.

Description

Injection mold for automobile front bumper

Technical Field

The utility model relates to a bumper production field specifically is a bumper injection mold before car.

Background

In the production process of the front bumper of the automobile, an injection mold is usually needed to be used for carrying out forming work on the front bumper, the cavity of the injection mold for the front bumper of the automobile is approximate to a U shape, the injection of the existing injection mold for the front bumper of the automobile cannot be carried out through a single runner, the injection time cannot be effectively shortened, the molten fluid cannot reach all positions of the cavity as far as possible simultaneously, the quality of an injection molding piece is reduced, the cooling efficiency and the cooling effect cannot be effectively improved, the injection molding piece cannot be cooled more uniformly, and the injection molding piece is not beneficial to forming work of the injection molding piece.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bumper injection mold before car to solve the problem that proposes among the above-mentioned background art.

in order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an automobile front bumper injection mold, includes die holder and upper die base, the pin joint of the upper end surface of die holder has the die board, the pin joint of the lower extreme surface of upper die base has the convex die board, the department is provided with the runner seat in the middle of the upper end surface of upper die base, the inside of runner seat has run through there is the runner, the lower extreme of runner is provided with the sprue, the lower extreme pin joint of convex die board has the terrace die mold insert, be provided with the die cavity between convex die board and the die board, the inside outside that is close to the die cavity of concave die board is provided with the conformal cooling water course.

Preferably, a central flow channel is arranged at the center of the lower end of the main flow channel, edge flow channels are arranged around the lower end of the main flow channel, the number of the edge flow channels is four, and the edge flow channels and the central flow channel are communicated with the main flow channel.

Preferably, a water inlet is formed in one end of the shape following cooling water channel, a water outlet is formed in the other end of the shape following cooling water channel, the number of the shape following cooling water channels is eight, and the eight shape following cooling water channels are uniformly distributed outside the cavity.

Preferably, demolding ejector rods penetrate through two sides of the interior of the lower die base, and connecting pins are arranged between the lower die base and the female die plate and between the upper die base and the male die plate.

preferably, connecting bolts are arranged between the convex template and the convex mold insert, and the number of the connecting bolts is four.

Preferably, the edge between the concave template and the convex template is provided with a guide pillar, and guide pillar grooves are formed in four corners of the outer surface of the lower end of the convex template.

To sum up, the utility model discloses following beneficial effect has:

1. The lower end of the sprue is provided with the main runner, the center of the lower end of the main runner is provided with the center runner, the periphery of the lower end of the main runner is provided with the edge runners, the number of the edge runners is four, the edge runners and the center runner are communicated with the main runner, in the using process, firstly, the concave template and the convex template are matched, molten plastic fluid flows into the main runner from the sprue in the sprue seat, then flows to the edge of the cavity from the edge runners under the action of pressure, and simultaneously flows to the middle position in the cavity from the center runner, the injection time can be effectively shortened by matching the multiple runners, the molten fluid can reach all positions of the cavity as far as possible, and the quality of an injection molding piece is improved;

2. the water inlet is formed in one end of the shape-following cooling water channel, the water outlet is formed in the other end of the shape-following cooling water channel, the number of the shape-following cooling water channels is eight, the eight groups of shape-following cooling water channels are uniformly distributed outside the cavity, the distances between each group of shape-following cooling water channels and the cavity are the same, secondly, after injection is completed, cooling work needs to be carried out on the injection molding piece, cooling water enters from the water inlet of each group of shape-following cooling water channels, rapidly reaches the water outlet and is discharged from the water outlet.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

Fig. 2 is an internal view of the male mold insert of the present invention;

Fig. 3 is a side view of the cavity plate of the present invention.

In the figure: 1. a lower die holder; 2. an upper die holder; 3. a cavity plate; 4. a convex template; 5. a sprue seat; 6. a gate; 7. a main flow channel; 71. a center flow passage; 72. an edge runner; 8. a male die insert; 9. a conformal cooling water channel; 91. a water inlet; 92. a water outlet; 10. a cavity; 11. a guide post; 12. a guide post groove; 13. and connecting the bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: an injection mold for a front bumper of an automobile comprises a lower die holder 1 and an upper die holder 2, wherein a concave die plate 3 is connected with the outer surface of the upper end of the lower die holder 1 in a pin joint mode, a convex die plate 4 is connected with the outer surface of the lower end of the upper die holder 2 in a pin joint mode, a sprue seat 5 is arranged in the middle of the outer surface of the upper end of the upper die holder 2, a sprue 6 penetrates through the sprue seat 5, a main runner 7 is arranged at the lower end of the sprue 6, a convex die insert 8 is connected with the lower end of the convex die plate 4 in a pin joint mode, a cavity 10 is arranged between the convex die plate 4 and the concave die plate 3, and a conformal cooling water channel 9 is arranged inside the concave die plate 3 and close to the outer part of the cavity 10, is beneficial to the molding work of injection molding parts.

Further, a center runner 71 is arranged at the center of the lower end of the main runner 7, edge runners 72 are arranged around the lower end of the main runner 7, the number of the edge runners 72 is four, the edge runners 72 and the center runner 71 are communicated with the main runner 7, the injection time can be shortened by matching the edge runners 72 and the center runner 71, and the molten fluid can reach all positions of the cavity 10 as far as possible.

Further, one end of the shape following cooling water channel 9 is provided with a water inlet 91, the other end of the shape following cooling water channel 9 is provided with a water outlet 92, the number of the shape following cooling water channels 9 is eight, the eight groups of shape following cooling water channels 9 are uniformly distributed outside the cavity 10, the distances between the groups of shape following cooling water channels 9 and the cavity 10 are the same, and the front bumper injection molding piece can be cooled more uniformly and rapidly.

Further, drawing of patterns ejector pin has run through to the inside both sides of die holder 1, all is provided with the connecting pin between die holder 1 and cavity board 3 and upper die base 2 and the convex die board 4, and the connecting pin is used for fixed two sets of templates.

Further, connecting bolts 13 are arranged between the male die plate 4 and the male die insert 8, the number of the connecting bolts 13 is four, and the connecting bolts 13 are used for facilitating installation and disassembly of the male die insert 8.

Further, the edge between the concave die plate 3 and the convex die plate 4 is provided with a guide pillar 11, guide pillar grooves 12 are formed in four corners of the outer surface of the lower end of the convex die plate 4, and the guide pillars 11 are used for determining the horizontal relative positions of the concave die plate 3 and the convex die plate 4.

It should be noted that, the utility model relates to an injection mold for front bumper of automobile, in the using process, firstly, the female mold plate 3 and the male mold plate 4 are matched, the melted plastic fluid flows into the main runner 7 from the sprue 6 in the sprue seat 5, then flows to the edge of the cavity 10 from the edge runner 72 under the action of pressure, and flows to the middle position in the cavity 10 from the central runner 71, the multi-group runners are used in cooperation to effectively shorten the injection time, so that the melted fluid can reach each position of the cavity 10 as far as possible, thereby improving the quality of the injection molding piece, secondly, after the injection is finished, the injection molding piece needs to be cooled, the cooling water enters from the water inlet 91 of each group of conformal cooling water channels 9, rapidly reaches the water outlet 92, and is discharged from the water outlet 92, because the shape of the conformal cooling water channel 9 is close to the cavity 10, and the distance between each group of conformal cooling water channels 9 and the cavity 10 is the same, can improve cooling efficiency and effect effectively like this for the injection molding obtains more even cooling, is favorable to the shaping work of injection molding, and at last, after the cooling is accomplished, external power unit control upper die base 2 goes upward, thereby removes the die block board 4 from die block board 3, and it is ejecting with the injection molding through the drawing of patterns ejector pin, gets into next processing link, and whole use is ended here, and is comparatively practical.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a bumper injection mold before car, includes die holder (1) and upper die base (2), its characterized in that: the die is characterized in that a concave die plate (3) is connected to the outer surface of the upper end of the lower die base (1) in a pin mode, a convex die plate (4) is connected to the outer surface of the lower end of the upper die base (2) in a pin mode, a sprue seat (5) is arranged in the middle of the outer surface of the upper end of the upper die base (2), a sprue (6) penetrates through the sprue seat (5), a main runner (7) is arranged at the lower end of the sprue (6), a convex die insert (8) is connected to the lower end of the convex die plate (4) in a pin mode, a die cavity (10) is arranged between the convex die plate (4) and the concave die plate (3), and a conformal cooling water channel (9) is arranged in.

2. The injection mold for the front bumper of the automobile as claimed in claim 1, wherein: the center of the lower end of the main flow channel (7) is provided with a center flow channel (71), edge flow channels (72) are arranged around the lower end of the main flow channel (7), the number of the edge flow channels (72) is four, and the edge flow channels (72) and the center flow channel (71) are communicated with the main flow channel (7).

3. The injection mold for the front bumper of the automobile as claimed in claim 1, wherein: one end of the shape following cooling water channel (9) is provided with a water inlet (91), the other end of the shape following cooling water channel (9) is provided with a water outlet (92), the number of the shape following cooling water channels (9) is eight, and the eight groups of the shape following cooling water channels (9) are uniformly distributed outside the cavity (10).

4. The injection mold for the front bumper of the automobile as claimed in claim 1, wherein: demolding ejector rods penetrate through two sides of the interior of the lower die base (1), and connecting pins are arranged between the lower die base (1) and the concave die plate (3) and between the upper die base (2) and the convex die plate (4).

5. The injection mold for the front bumper of the automobile as claimed in claim 1, wherein: connecting bolts (13) are arranged between the male die plate (4) and the male die insert (8), and the number of the connecting bolts (13) is four.

6. The injection mold for the front bumper of the automobile as claimed in claim 1, wherein: guide posts (11) are arranged at the edges between the concave die plate (3) and the convex die plate (4), and guide post grooves (12) are formed in the four corners of the outer surface of the lower end of the convex die plate (4).