Die-casting die for producing front box body for automobile

Abstract

The invention relates to the technical field of automobile metal casting, in particular to a die-casting die for producing a front box body for an automobile, which can provide a plurality of supporting points to improve the stability of a formed product in the demolding process and facilitate material taking work of workers when the formed product is subjected to jacking demolding work. The air ejected from the first air ejection pipe head is blown out towards the center position of a formed product, so that the air ejection pipe head can be used in cooperation with the first air ejection pipe heads on supporting pipe fittings at the bottoms of other material ejection plugs, the blown cooling air has a collision convection effect, the cooling air can be better dispersed, and the cooling efficiency is improved. The cooling efficiency of formed products is improved; in addition, the second air spraying pipe head arranged on the upper side of the first air spraying pipe head is obliquely arranged, a pipe opening of the second air spraying pipe head faces the bottom side of the formed product, the good cooling working effect is achieved, the influence on the metal die-casting working process is avoided, and then the positive effect is achieved for improving the metal die-casting working benefits.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive metal casting, and in particular to a die-casting mold for producing a front box for automobiles. Background Art

[0002] A die-casting mold is a tool for casting metal parts, a tool for completing the die-casting process on a dedicated die-casting forging machine; the basic die-casting process is: the molten metal is first cast into the cavity of the mold at a low speed or a high speed, and the mold has a movable cavity surface, which is pressure-forged along with the cooling process of the molten metal, eliminating the shrinkage cavity and porosity defects of the blank, and also making the internal structure of the blank reach the broken grains in the forged state; the comprehensive mechanical properties of the blank are significantly improved.

[0003] For the die-casting processing of the front box for automobiles, the top mold and the bottom mold are pressed together, and then the molten metal is poured into the cavity. After shaping, it is taken out. In this process, generally after the product is shaped, the fixed mold is lifted to expose the product, and generally it still needs to be naturally cooled for a period of time. Then the staff takes down the product. In the die-casting material-taking work of this process, on the one hand, relying solely on the natural cooling method, its cooling efficiency is low, affecting the subsequent die-casting processing process; on the other hand, relying only on the staff to take the material by hand is more troublesome. There are also bottom molds with built-in ejector mechanisms, which have a single function, and when ejecting the material, the staff needs to take down the product in time, otherwise it may cause the problem of the product tilting or even falling.

[0004] Therefore, the present invention proposes a die-casting mold for producing a front box for automobiles to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a die-casting mold for producing a front box for automobiles to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A die-casting mold for producing a front box for automobiles, including a bottom mold main body and a die-casting cavity provided on the top of the bottom mold main body;

[0007] The bottom ends of the bottom mold main body are symmetrically and fixedly provided with support leg seats, the bottom ends of the support leg seats are fixedly provided with fixing plate members, and the fixing plate members are provided with mounting holes. The bottom mold main body is provided with an accommodating cavity in the vertical direction, and the accommodating cavity is connected to the ejecting member.

[0008] Preferably, one end opening of the accommodating cavity is arranged at the bottom end of the bottom mold main body, and the other end opening of the accommodating cavity is arranged in the die-casting cavity.

[0009] Preferably, the ejector member includes an ejector insertion tube, a special-shaped support plate, a connector, a gas delivery hose, a connecting plate member, a telescopic hydraulic cylinder body, and an auxiliary assembly; the ejector insertion tube is inserted into the accommodation cavity in the bottom die body, and the bottom end of the ejector insertion tube is fixedly arranged on the special-shaped support plate. A connecting plate member is fixedly arranged on the side of the special-shaped support plate. The connecting plate member is fixedly connected to one end of the telescopic hydraulic cylinder body, and the telescopic hydraulic cylinder body is fixedly arranged at the bottom end of the bottom die body.

[0010] Preferably, a connector is arranged on one side of the bottom of the ejector insertion tube, and the connector is connected to one end of the gas delivery hose.

[0011] Preferably, an auxiliary assembly is arranged at the top end of the ejector insertion tube. The auxiliary assembly includes an internal thread docking groove, an external thread docking ring, a support pipe fitting, an ejector plug, and a jet cooling auxiliary structure; the internal thread docking groove is arranged inside the top end pipe orifice of the ejector insertion tube, and the internal thread docking groove is in threaded connection with the external thread docking ring in a matching manner. The external thread docking ring is fixedly arranged at the position of the bottom end pipe orifice of the support pipe fitting. A support pipe fitting is fixedly arranged at the top end of the support pipe fitting. The ejector plug is arranged in a cylindrical shape, and the end diameter is equal to the orifice diameter of the accommodation cavity, and the end diameter of the ejector plug is larger than the end diameter of the support pipe fitting.

[0012] Preferably, a jet cooling auxiliary structure is arranged on one side of the support pipe fitting. The jet cooling auxiliary structure includes a first jet pipe head, a first card slot body, a second jet pipe head, and a second card slot body; the first jet pipe head is arranged on one side of the support pipe fitting, and one end of the first jet pipe head is communicated with the support pipe fitting. A first card slot body is arranged at the pipe orifice of the other end of the first jet pipe head. The second jet pipe head is arranged at the upper side position of the first jet pipe head, and one end of the second jet pipe head is communicated with the first jet pipe head, and a second card slot body is arranged at the pipe orifice of the other end of the second jet pipe head.

[0013] Preferably, the first jet pipe head is arranged horizontally, and the second jet pipe head is arranged in an upward inclined manner.

[0014] Preferably, a connecting fitting is arranged at the lower side position of the first jet pipe head. The connecting fitting includes a third jet pipe head and a third card slot body; one end of the third jet pipe head is communicated with the first jet pipe head, and a third card slot body is arranged at the pipe orifice of the other end of the third jet pipe head.

[0015] Preferably, the third jet pipe head is arranged in a downward inclined manner, and the third card slot body is blocked by a set plugging chuck.

[0016] Preferably, the plugging chuck includes a rubber gasket, a handle head, a plugging head and an elastic clamping projection; one end of the rubber gasket is fixedly provided with a plugging head, and the plugging head is adaptively inserted into the third air jet pipe head. The other end of the rubber gasket is fixedly provided with a handle head. The rubber gasket is arranged as a circular gasket, and elastic clamping projections are equidistantly and fixedly arranged on the circumferential side wall of the rubber gasket.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] The die-casting mold for the front box body of an automobile designed by the present invention includes a bottom die main body and a die-casting cavity arranged on the top of the bottom die main body; support leg seats are symmetrically and fixedly arranged at the bottom end of the bottom die main body, a fixed plate member is fixedly arranged at the bottom end of the support leg seat, and mounting holes are arranged in the fixed plate member. A receiving cavity is arranged in the bottom die main body in the vertical direction, and the receiving cavity is connected to a top feeding member; one end opening of the receiving cavity is arranged at the bottom end of the bottom die main body, and the other end opening of the receiving cavity is arranged in the die-casting cavity. When performing the top demolding work on the formed product, multiple support points can be provided, improving the stability of the formed product during the demolding process and facilitating the staff to perform the material taking work; and the first air jet pipe head of the air jet cooling auxiliary structure is horizontally arranged, and the pipe orifice direction of the first air jet pipe head faces the center position of the formed product, that is, the gas ejected from the first air jet pipe head is blown towards the center position of the formed product. In this way, it can be used in cooperation with the first air jet pipe heads on the bottom support pipe fittings of other top feeding plug heads, so that the blown cooling air has a collision and convection effect, that is, the cooling air can be better dispersed, improving the cooling efficiency of the formed product; furthermore, the second air jet pipe head arranged at the upper side position of the first air jet pipe head is obliquely arranged, and the pipe orifice of the second air jet pipe head faces the bottom side position of the formed product, that is, the cold area air ejected from the second air jet pipe head can directly blow onto the formed product, having a good cooling effect, improving the cooling speed of the formed product, and enabling the mold to be taken out faster, avoiding affecting the metal die-casting work process, and thus having a positive effect on improving the metal die-casting work efficiency. Description of the Drawings

[0019] Figure 1 It is a top view of the structural connection of the front box body die-casting bottom die of the present invention;

[0020] Figure 2 is Figure 1 an enlarged schematic view of the structural connection at position A in

[0021] Figure 3 It is a bottom view of the structural connection of the front box body die-casting bottom die of the present invention;

[0022] Figure 4 is Figure 3 an enlarged schematic view of the structural connection at position B in

[0023] Figure 5 Schematic diagram of the structural connection between the ejector plug and the auxiliary component of the present invention;

[0024] Figure 6 is Figure 5 Enlarged schematic diagram of the structural connection at position C in

[0025] Figure 7 Schematic diagram of the structural connection between the support pipe fitting and the jet cooling auxiliary structure of the present invention;

[0026] Figure 8 is Figure 7 Enlarged schematic diagram of the structural connection at position D in

[0027] Figure 9 Schematic diagram of the structural connection of the plugging chuck of the present invention.

[0028] In the figure: bottom die body 1, die casting cavity 11, support leg seat 2, fixed plate member 21, ejector plug 301, special-shaped support plate 302, connecting head 303, gas delivery hose 304, connecting plate member 305, telescopic hydraulic cylinder body 306, internal thread docking groove 401, external thread docking ring 402, support pipe fitting 403, ejector plug 404, first jet pipe head 501, first card slot body 502, second jet pipe head 503, second card slot body 504, third jet pipe head 601, third card slot body 602, rubber gasket 701, handle head 702, plugging head 703, elastic clamping projection 704. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely. For the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1: Please refer to Figures 1-9 , a die casting mold for the production of a front box body for an automobile, including a bottom die body 1 and a die casting cavity 11 arranged on the top of the bottom die body 1; wherein, support leg seats 2 are symmetrically and fixedly arranged at the bottom end of the bottom die body 1, a fixed plate member 21 is fixedly arranged at the bottom end of the support leg seats 2, and there are mounting holes in the fixed plate member 21. A receiving cavity is arranged in the bottom die body 1 in the vertical direction, and the receiving cavity is connected to an ejector member; one end opening of the receiving cavity is arranged at the bottom end of the bottom die body 1, and the other end opening of the receiving cavity is arranged in the die casting cavity 11. The receiving cavity is arranged as a cylindrical cavity, and multiple receiving cavities are arranged in the bottom die body 1.

[0031] A top feeding inserting tube 301 is arranged in the accommodating cavity. A top feeding plug 404 is connected and arranged at the top of the top feeding inserting tube 301. Among them, the special-shaped support plate 302 is driven by the telescopic hydraulic cylinder body 306 to move up and down, thereby driving the top feeding inserting tube 301 to move up and down, and finally driving the top feeding plug 404 to jack up the metal product formed in the die-casting cavity 11 to realize the demoulding and material taking work. And one top feeding inserting tube 301 and one top feeding plug 404 are arranged in each accommodating cavity. When carrying out the jacking demoulding work on the formed product, multiple supporting points can be provided to improve the stability of the formed product during the demoulding process and facilitate the staff to carry out the material taking work.

[0032] Among them, the top feeding plug 404 set in this solution is fixedly provided with a support pipe fitting 403 at the bottom end of the top feeding plug 404, and an external thread docking ring 402 is arranged at the bottom end of the support pipe fitting 403 and is threadedly connected with the internal thread docking groove 401 inside the top end pipe orifice of the top feeding inserting tube 301 to realize the detachable setting, which is convenient for the later replacement and maintenance work; among them, the top feeding component includes a top feeding inserting tube 301, a special-shaped support plate 302, a connecting head 303, a gas delivery hose 304, a connecting plate member 305, a telescopic hydraulic cylinder body 306 and an auxiliary component; the top feeding inserting tube 301 is inserted and arranged in the accommodating cavity in the bottom die body 1, and the bottom end of the top feeding inserting tube 301 is fixedly arranged on the special-shaped support plate 302. A connecting plate member 305 is fixedly arranged on the side of the special-shaped support plate 302. The connecting plate member 305 is fixedly connected with one end of the telescopic hydraulic cylinder body 306, and the telescopic hydraulic cylinder body 306 is fixedly arranged at the bottom end of the bottom die body 1; a connecting head 303 is arranged on one side of the bottom of the top feeding inserting tube 301, and the connecting head 303 is connected with one end of the gas delivery hose 304; an auxiliary component is arranged at the top end of the top feeding inserting tube 301, and the auxiliary component includes an internal thread docking groove 401, an external thread docking ring 402, a support pipe fitting 403, a top feeding plug 404 and a jet cooling auxiliary structure; the internal thread docking groove 401 is arranged inside the top end pipe orifice of the top feeding inserting tube 301, and the internal thread docking groove 401 is threadedly connected with the external thread docking ring 402 in a matching manner. The external thread docking ring 402 is fixedly arranged at the position of the bottom end pipe orifice of the support pipe fitting 403. The top end of the support pipe fitting 403 is fixedly provided with a top feeding plug 404. The top feeding plug 404 is set to be cylindrical, and the end diameter is set to be equal to the cavity orifice diameter of the accommodating cavity, and the end diameter of the top feeding plug 404 is larger than the end diameter of the support pipe fitting 403.

[0033] When the formed product is demolded by the ejector plug 404 and natural cooling is required for a period of time, this solution provides a blowing cooling operation through the combined use of the jet cooling auxiliary structure, the ejector pipe 301, and the gas delivery hose 304. That is, when the ejector pipe 301 moves upward driven by the telescopic hydraulic cylinder body 306, the ejector pipe 301 pushes the ejector plug 404 upward to push the formed product upward, and the ejector plug 404 is separated from the accommodation cavity until the first jet pipe head 501 and the second jet pipe head 503 provided on the side wall of the support pipe fitting 403 are exposed. That is, a jet cooling auxiliary structure is provided on one side of the support pipe fitting 403, and the jet cooling auxiliary structure includes a first jet pipe head 501, a first card slot body 502, a second jet pipe head 503, and a second card slot body 504. The first jet pipe head 501 is provided on one side of the support pipe fitting 403, and one end of the first jet pipe head 501 is communicatively connected to the support pipe fitting 403. A first card slot body 502 is provided at the pipe orifice at the other end of the first jet pipe head 501. The second jet pipe head 503 is provided above the first jet pipe head 501, and one end of the second jet pipe head 503 is communicatively connected to the first jet pipe head 501. A second card slot body 504 is provided at the pipe orifice at the other end of the second jet pipe head 503. The first jet pipe head 501 is horizontally arranged, and the second jet pipe head 503 is arranged to be inclined upward. Among them, the cooling gas is transported through the gas delivery hose 304, enters the ejector pipe 301, then flows into the support pipe fitting 403, and is ejected from the first jet pipe head 501 and the second jet pipe head 503. Here, to avoid the third jet pipe head 601 provided below the first jet pipe head 501 from affecting the jet cooling operation, the initial state of the third jet pipe head 601 is blocked by a plugging chuck at its pipe orifice, so that the ejected gas is ejected from the first jet pipe head 501 and the second jet pipe head 503. A connecting fitting is provided below the first jet pipe head 501, and the connecting fitting includes a third jet pipe head 601 and a third card slot body 602. One end of the third jet pipe head 601 is communicatively connected to the first jet pipe head 501, and a third card slot body 602 is provided at the pipe orifice at the other end of the third jet pipe head 601. The third jet pipe head 601 is arranged to be inclined downward, and the third card slot body 602 is blocked by a plugging chuck provided.

[0034] The first air jet nozzle 501 is horizontally arranged, and the nozzle direction of the first air jet nozzle 501 faces the center position of the molded product, that is, the gas ejected from the first air jet nozzle 501 is blown towards the center position of the molded product. In this way, it can be used in cooperation with the first air jet nozzles 501 on the bottom support pipe fittings 403 of other ejector plugs 404, so that the blown cooling air has a collision and convection effect, that is, the cooling air can be better dispersed, improving the cooling efficiency of the molded product. Furthermore, the second air jet nozzle 503 arranged on the upper side of the first air jet nozzle 501 is inclined, and the nozzle of the second air jet nozzle 503 faces the bottom side position of the molded product, that is, the cold air ejected from the second air jet nozzle 503 can directly blow onto the molded product, having a good cooling effect, improving the cooling speed of the molded product, enabling the demolding work to be carried out faster, avoiding affecting the metal die-casting work process, and thus having a positive effect on improving the metal die-casting work efficiency. After the molded product is cooled, the operator removes the molded product, and then pauses the gas delivery work of the gas delivery hose 304, that is, the telescopic hydraulic cylinder body 306 drives the special-shaped support plate 302 to reset, thereby driving the ejector plug 301 to reset, and finally the ejector plug 404 is reset into the receiving cavity. At this time, the top surface of the ejector plug 404 is flush with the top cavity opening of the receiving cavity. Then, die-casting processing is carried out again, and the material taking work for the die-cast molded product is carried out according to the same operation as above.

[0035] For the plugging chuck, it includes a rubber gasket 701, a handle head 702, a plugging head 703, and an elastic clamping projection 704; one end of the rubber gasket 701 is fixedly provided with a plugging head 703, and the plugging head 703 is adaptively inserted into the third air jet nozzle 601. The other end of the rubber gasket 701 is fixedly provided with a handle head 702. The rubber gasket 701 is set as a circular gasket, and elastic clamping projections 704 are equidistantly fixedly arranged on the circumferential side wall of the rubber gasket 701. That is, in the case of long-term operation, if there is slag remaining in the die-casting cavity 11, or when foreign impurities fall into the die-casting cavity 11 when the molded product is pushed upward, the third air jet nozzle 601 provided can perform corresponding blowing and impurity removal work on the impurities in the die-casting cavity 11. That is, at this time, by pulling the handle head 702 at one end of the rubber gasket 701, the plugging of the nozzle of the third air jet nozzle 601 by the plugging head 703 is released, that is, the plugging head 703 is separated from the nozzle of the third air jet nozzle 601. At this time, when the molded product is cooled, some gas will also be blown from the third air jet nozzle 601 towards the die-casting cavity 11, having a certain effect of cleaning impurities, and thus having a corresponding positive effect on improving the die-casting processing quality.

[0036] When it is necessary to clean the die-casting cavity 11 separately, that is, not during the upward pushing and feeding operation, in order to avoid the gas ejection of the first gas injection nozzle head 501 and the second gas injection nozzle head 503 from affecting the gas ejection of the third gas injection nozzle head 601, it is also possible to block them with a plugging chuck adapted to the nozzle openings of both the first gas injection nozzle head 501 and the second gas injection nozzle head 503, that is, all the ejected gas is ejected from the third gas injection nozzle head 601. This can increase the wind force ejected from the third gas injection nozzle head 601 and further improve the cleaning effect on the die-casting cavity 11. That is, whether to block the first gas injection nozzle head 501, the second gas injection nozzle head 503, and the third gas injection nozzle head 601 with the plugging chuck provided in this solution can be changed according to the actual die-casting work requirements, and it has excellent flexibility in die-casting work.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A die-casting mold for producing a front box body for an automobile, comprising a bottom mold body (1) and a die-casting cavity (11) arranged on the top of the bottom mold body (1); Features: A supporting leg seat (2) is symmetrically fixedly arranged at the bottom end of the bottom mold body (1), a fixing plate (21) is fixedly arranged at the bottom end of the supporting leg seat (2), and a mounting hole is arranged in the fixing plate (21), and a accommodating cavity is arranged in the bottom mold body (1) in the vertical direction, and the accommodating cavity is connected to the top material component.

2. The die-casting mold for producing the front box body of an automobile according to claim 1, characterized in that: One end opening of the accommodating cavity is arranged at the bottom end of the bottom mold body (1), and the other end opening of the accommodating cavity is arranged in the die casting cavity (11).

3. The die-casting mold for producing the front box body of an automobile according to claim 1, characterized in that: The ejection member comprises an ejection insert (301), a special-shaped support plate (302), a connector (303), a gas delivery hose (304), a connecting plate (305), a telescopic hydraulic cylinder (306) and an auxiliary component; the ejection insert (301) is inserted into a receiving cavity in a bottom mold body (1), and the bottom end of the ejection insert (301) is fixedly arranged on the special-shaped support plate (302), a connecting plate (305) is fixedly arranged on the side of the special-shaped support plate (302), the connecting plate (305) is fixedly connected to one end of the telescopic hydraulic cylinder (306), and the telescopic hydraulic cylinder (306) is fixedly arranged at the bottom end of the bottom mold body (1).

4. The die-casting mold for producing the front box body of an automobile according to claim 3, characterized in that: A connector (303) is provided on one side of the bottom of the top material inserting tube (301), and the connector (303) is connected to one end of a gas delivery hose (304).

5. The die-casting mold for producing the front box body of an automobile according to claim 3, characterized in that: The top end of the ejection tube (301) is provided with an auxiliary component, and the auxiliary component includes an internal threaded docking groove (401), an external threaded docking ring (402), a support pipe (403), a ejection plug (404) and an auxiliary structure for jet cooling; the internal threaded docking groove (401) is arranged on the inner side of the top end pipe opening of the ejection tube (301), and the internal threaded docking groove (401) and the external threaded docking ring (402) are threadedly connected in a matching manner, and the external threaded docking ring (402) is fixedly arranged at the bottom pipe opening position of the support pipe (403), and the top end of the support pipe (403) is fixedly provided with a ejection plug (404), and the ejection plug (404) is arranged in a cylindrical shape, and the end diameter is equal to the cavity opening diameter of the accommodating cavity, and the end diameter of the ejection plug (404) is larger than the end diameter of the support pipe (403).

6. The die-casting mold for producing the front box body of an automobile according to claim 5, characterized in that: A jet cooling auxiliary structure is arranged on one side of the support pipe (403), and the jet cooling auxiliary structure comprises a first jet pipe head (501), a first slot body (502), a second jet pipe head (503) and a second slot body (504); the first jet pipe head (501) is arranged on one side of the support pipe (403), and one end of the first jet pipe head (501) is connected to the support pipe (403), and the pipe mouth of the other end of the first jet pipe head (501) is provided with a first slot body (502); the second jet pipe head (503) is arranged on the upper side of the first jet pipe head (501), and one end of the second jet pipe head (503) is connected to the first jet pipe head (501), and the pipe mouth of the other end of the second jet pipe head (503) is provided with two slot bodies (504).

7. The die-casting mold for producing the front box body of an automobile according to claim 6, characterized in that: The first air jet head (501) is arranged horizontally, and the second air jet head (503) is arranged tilted upward.

8. The die-casting mold for producing the front box body of an automobile according to claim 6, characterized in that: A connecting accessory is provided at the lower side of the first jet pipe head (501), and the connecting accessory comprises a third jet pipe head (601) and a third slot body (602); one end of the third jet pipe head (601) is connected to the first jet pipe head (501), and the other end of the third jet pipe head (601) is provided with a third slot body (602).

9. The die-casting mold for producing the front box body of an automobile according to claim 8, characterized in that: The third air injection pipe head (601) is arranged to be tilted downward, and the third slot body (602) is blocked by a blocking clamp.

10. The die-casting mold for producing the front box of an automobile according to claim 9, characterized in that: The plugging clamp comprises a rubber clamping pad (701), a handle head (702), a plugging head (703) and an elastic clamping protrusion (704); one end of the rubber clamping pad (701) is fixedly provided with the plugging head (703), and the plugging head (703) is adapted to be plugged with the third air injection pipe head (601); the other end of the rubber clamping pad (701) is fixedly provided with the handle head (702); the rubber clamping pad (701) is configured as a circular pad, and the circumferential side wall of the rubber clamping pad (701) is fixedly provided with elastic clamping protrusions (704) at equal intervals.

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