CN219883215U - Injection molding die for front bumper of automobile - Google Patents

Abstract

The utility model relates to the technical field of forming dies and discloses an injection forming die for an automobile front bumper, which comprises a lower die, an upper die and a side shell, wherein a first inner cavity is formed in the upper end of the inner part of the upper die, a second inner cavity is formed in the lower end of the inner part of the lower die, an electric telescopic rod, a fixed plate and an inserting rod are sequentially arranged in the first inner cavity and the second inner cavity from outside to inside, a forming cavity is formed in one side of the upper end of the inner part of the lower die, forming lugs matched with the forming cavity are arranged at the lower end of the upper die, a plurality of equally-distributed perforations are formed in the forming cavity and the forming lugs, a compression refrigerator is arranged in the side shell, an air pump is arranged at the output end of the compression refrigerator, and the output end of the air pump is communicated with the first inner cavity and the second inner cavity through pipelines. The utility model improves the demoulding efficiency by adopting the mode of adopting pressurized cold air to separate the extrusion of the molded plastic piece from the mould.

Description

Injection molding die for front bumper of automobile

Technical Field

The utility model relates to the technical field of forming dies, in particular to an injection forming die for an automobile front bumper.

Background

The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and precise dimensions. Injection molding is a process used in mass production of parts of complex shape. Specifically, the heated and melted plastic is injected into a die cavity under high pressure by an injection molding machine, and a formed product is obtained after cooling and solidification.

The injection mold generally comprises an upper mold, a lower mold, an upper mold core arranged on the upper mold, a lower mold core arranged on the lower mold core, and a mold clamping/demolding device for matching the upper mold core and the lower mold core to complete injection molding. An injection molding die is required for manufacturing a front bumper of an automobile.

In the above prior art, when the front bumper of the automobile is produced by the injection molding die, the size of the bumper is large and the arc is formed, and the adhesion area between the molded plastic part and the die is large, so that the demolding is not easy to carry out, and therefore, the injection molding die for the front bumper of the automobile is provided.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides an injection molding die for an automobile front bumper, which aims to solve the problems in the prior art.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an automobile front bumper injection molding mould, includes bed die, last mould and side shell, the inside upper end of bed die is provided with first inner chamber, the inside lower extreme of bed die is provided with the second inner chamber, electric telescopic handle, fixed plate and inserted bar are installed by outside-in proper order to the inside of first inner chamber and second inner chamber, one side of the inside upper end of bed die is provided with the shaping chamber, the lower extreme of bed die is provided with the shaping lug with shaping chamber looks adaptation, the inside of shaping chamber and shaping lug all is provided with the perforation that a plurality of equidistance distribute, and inserted bar and perforation looks adaptation, the internally mounted of side shell has compression refrigerator, the air pump is installed to compression refrigerator's output, the output of air pump is linked together with first inner chamber and second inner chamber through the pipeline.

Preferably, a material injection channel is arranged on the left side of the upper end of the upper die, and the material injection channel and the upper die are integrally formed, and the material injection channel is used for injecting materials.

Preferably, an exhaust passage is arranged on the right side inside the upper end of the upper die, and the exhaust passage and the upper die are integrally formed, and the exhaust passage is used for exhausting the internal air when the material is injected.

Preferably, an inner groove is formed in the inserted link, the inner groove and the inserted link are integrally formed, and the inner groove is used for installing the driving motor.

Preferably, a driving motor is installed in the inner groove, and the driving motor is fixedly connected with the inserted link.

Preferably, the output end of the driving motor is provided with an eccentric block, the eccentric block is fixedly connected with the output end of the driving motor, the eccentric block rotates to generate vibration so that the inserted link vibrates along with the eccentric block, and the inserted link is separated from the front bumper of the automobile under the action of the vibration.

(III) beneficial effects

Compared with the prior art, the utility model provides the injection molding die for the front bumper of the automobile, which has the following beneficial effects:

1. the electric telescopic rod is started to shrink, the inserting rod is pulled out from the perforation to be drawn into the first inner cavity and the second inner cavity, the compression refrigerator is started to be matched with the air pump to inject cold air into the first inner cavity and the second inner cavity, the cold air in the first inner cavity and the second inner cavity is discharged out of the extrusion plastic part through the perforation, pushing acting force on the plastic part is generated through air pressure, the upper die and the lower die are separated, the cooling of the plastic part is accelerated by the cold air, and the plastic part is separated from the upper die and the lower die by the air pressure, so that the plastic part is more convenient to demould, and the problem that the existing die is difficult to demould in the background technology is solved.

Drawings

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view showing the internal structure of the upper and lower molds of the present utility model;

FIG. 3 is a cross-sectional view of the first lumen and second lumen structures of the present utility model;

fig. 4 is a cross-sectional view of the structure of the plunger of the present utility model.

In the figure: 1. a lower die; 2. an upper die; 3. a side case; 4. a compression refrigerator; 5. a material injection channel; 6. an exhaust passage; 7. a first lumen; 8. a second lumen; 9. an electric telescopic rod; 10. a fixing plate; 11. a rod; 12. perforating; 13. a molding cavity; 14. forming a bump; 15. an inner tank; 16. a driving motor; 17. and an eccentric block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a technical scheme, referring to fig. 1, 2, 3 and 4, an injection molding die for an automobile front bumper comprises a lower die 1, an upper die 2 and a side shell 3, wherein a first inner cavity 7 is arranged at the upper end of the inner part of the upper die 2, a second inner cavity 8 is arranged at the lower end of the inner part of the lower die 1, an electric telescopic rod 9, a fixed plate 10 and an inserting rod 11 are sequentially arranged in the first inner cavity 7 and the second inner cavity 8 from outside to inside, a molding cavity 13 is arranged at one side of the upper end of the inner part of the lower die 1, a molding lug 14 matched with the molding cavity 13 is arranged at the lower end of the upper die 2, a plurality of through holes 12 distributed at equal intervals are arranged in the molding cavity 13 and the molding lug 14, the inserting rod 11 is matched with the through holes 12, a compression refrigerator 4 is arranged in the inner part of the side shell 3, an air pump is arranged at the output end of the compression refrigerator 4, and the output end of the air pump is communicated with the first inner cavity 7 and the second inner cavity 8 through a pipeline.

When the electric telescopic rod 9 is started to shrink when in use, the inserted rod 11 is pulled out from the perforation 12 and is retracted into the first inner cavity 7 and the second inner cavity 8, the compression refrigerator 4 is started to inject cold air into the first inner cavity 7 and the second inner cavity 8 by matching with the air pump, the cold air in the first inner cavity 7 and the second inner cavity 8 is discharged out of the extruded plastic part through the perforation 12, pushing acting force on the plastic part is generated through air pressure, the upper die 1 and the lower die 2 are separated at the same time, the cooling of the plastic part is accelerated by the cold air, and the plastic part is separated from the upper die 1 and the lower die 2 by the air pressure at the same time. It should be noted that, for the sake of saving the space, the innovative elements of the present patent are highlighted, and the present solution is to improve the related structure of the non-injection molding based on the existing injection molding mold, such as the molding cavity 13, the driving motor 16, the air pump, the compression refrigerator 4 and other conventional devices, which are not described in the present patent.

Referring to fig. 2 and 3, a material injecting channel 5 is disposed at the left side of the upper end of the upper mold 2, and the material injecting channel 5 is integrally formed with the upper mold 2, and the material injecting channel 5 is used for injecting material.

Referring to fig. 2 and 3, an exhaust passage 6 is provided on the right side of the upper end of the upper mold 2, and the exhaust passage 6 is integrally formed with the upper mold 2, and the exhaust passage 6 is used for exhausting the internal air during material injection.

Referring to fig. 4, an inner groove 15 is provided in the inside of the plunger 11, and the inner groove 15 is integrally formed with the plunger 11, and the inner groove 15 is used for mounting a driving motor 16.

Referring to fig. 4, a driving motor 16 is installed inside the inner groove 15, and the driving motor 16 is fixedly connected with the plunger 11.

Referring to fig. 4, an eccentric block 17 is mounted at an output end of a driving motor 16, the eccentric block 17 is fixedly connected with an output end of the driving motor 16, the driving motor 16 is started to rotate the eccentric block 17, vibration is generated by rotation of the eccentric block 17 to vibrate the insert rod 11, and the insert rod 11 is separated from a front bumper of an automobile under the action of the vibration.

The working principle of the device is as follows: the upper die 2 and the lower die 1 are combined, materials are injected into the forming cavity 13 through the material injection channel 5, the front bumper of the automobile is formed after cooling, when the automobile is demolded, the driving motor 16 is started to enable the eccentric block 17 to rotate, the eccentric block 17 rotates to generate vibration so that the inserting rod 11 vibrates along with the eccentric block, under the vibration force, the inserting rod 11 is separated from the front bumper of the automobile, the separation of the joint part of the inserting rod 11 and the plastic part is more convenient, the electric telescopic rod 9 is started to enable the inserting rod 11 to shrink, the inserting rod 11 is pulled out of the perforation 12 and is retracted into the first cavity 7 and the second cavity 8, the compression refrigerator 4 is started to be matched with the air pump to inject cold air into the first cavity 7 and the second cavity 8, the cold air inside the first cavity 7 and the second cavity 8 is matched with the air pump to discharge extruded plastic part through the perforation 12, pushing force is generated on the plastic part through air pressure, meanwhile, the upper die 1 and the lower die 2 are separated, the cooling of the plastic part is accelerated, and the air pressure simultaneously separates the plastic part from the upper die 1 and the lower die 2.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an automobile front bumper injection molding mould, includes bed die (1), goes up mould (2) and side shell (3), its characterized in that: the inside upper end of last mould (2) is provided with first inner chamber (7), the inside lower extreme of bed die (1) is provided with second inner chamber (8), the inside of first inner chamber (7) and second inner chamber (8) is installed electric telescopic handle (9), fixed plate (10) and inserted bar (11) by outside-in proper order, one side of the inside upper end of bed die (1) is provided with shaping chamber (13), the lower extreme of bed die (2) is provided with shaping lug (14) with shaping chamber (13) looks adaptation, the inside of shaping chamber (13) and shaping lug (14) all is provided with perforation (12) that a plurality of equidistance distribute, and inserted bar (11) and perforation (12) looks adaptation, internally mounted of side shell (3) has compression refrigerator (4), the air pump is installed to the output of air pump, the output of air pump is linked together with first inner chamber (7) and second inner chamber (8) through the pipeline.

2. The injection molding die for a front bumper of an automobile according to claim 1, wherein: the left side inside the upper end of the upper die (2) is provided with a material injection channel (5), and the material injection channel (5) and the upper die (2) are integrally formed.

3. The injection molding die for a front bumper of an automobile according to claim 1, wherein: an exhaust channel (6) is arranged on the right side inside the upper end of the upper die (2), and the exhaust channel (6) and the upper die (2) are integrally formed.

4. The injection molding die for a front bumper of an automobile according to claim 1, wherein: an inner groove (15) is formed in the inserted rod (11), and the inner groove (15) and the inserted rod (11) are integrally formed.

5. The injection molding die for a front bumper of an automobile according to claim 4, wherein: the driving motor (16) is arranged in the inner groove (15), and the driving motor (16) is fixedly connected with the inserted link (11).

6. The injection molding die for a front bumper of an automobile according to claim 5, wherein: an eccentric block (17) is arranged at the output end of the driving motor (16), and the eccentric block (17) is fixedly connected with the output end of the driving motor (16).