CN214442935U

CN214442935U - Die-casting die capable of preventing die core from deviating

Info

Publication number: CN214442935U
Application number: CN202022884640.7U
Authority: CN
Inventors: 张作坚
Original assignee: Dongguan Hongwei Precision Hardware Products Co ltd
Current assignee: Dongguan Hongwei Precision Hardware Products Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-10-22
Anticipated expiration: 2030-12-03

Abstract

The utility model provides a prevent die casting die of mold core skew, including last mold construction and lower mold construction, it includes the mould push pedal to go up the mold construction, go up the mould backing plate, the upper die base, the runner, lower mold construction includes the lower mould bottom plate, the lower mould backing plate, the die holder, form the mold core behind upper die base and the die holder compound die, it is connected with the guide bar to go up between mould push pedal and the lower mould bottom plate, each lateral surface of upper die base all is provided with the location bulge loop, each lateral surface of die holder all is provided with the lower location bulge loop that corresponds with last location bulge loop position, upward be provided with locking structure in the mould push pedal, locking structure includes elevator motor A, the locking shaft, elevator motor A installs the upper surface at last mould push pedal, the locking shaft is connected with elevator motor A, the other end of locking shaft runs through last mould push pedal and extends to the direction of mold core. The utility model has the advantages that: through setting up locking structure, lock the mold core after the compound die to prevent that the mold core from taking place the skew, ensure the quality of die-casting.

Description

Die-casting die capable of preventing die core from deviating

Technical Field

The utility model relates to a die casting die technical field especially relates to a prevent die casting die of mold core skew.

Background

The die-casting die is a tool for casting metal parts, and is a tool for completing a die-casting process on a special die-casting die forging machine. The basic process of die casting comprises the following steps: molten metal is cast at low speed or high speed and filled into the cavity of the mold, the mold has movable cavity surface, and it is pressurized and forged along with the cooling process of the molten metal, so that the shrinkage cavity and shrinkage porosity defects of the blank are eliminated, and the internal structure of the blank reaches the broken crystal grains in the forged state. The comprehensive mechanical property of the blank is obviously improved. In the prior art, the die is subjected to repeated die closing and die separating actions, so that the die core is easy to deviate, and the quality of a die-casting product is influenced. In view of this situation, a solution is urgently needed.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims to provide a prevent die casting die of mold core skew through setting up locking structure, with mold core locking behind the compound die to prevent that the mold core from taking place the skew, ensure the quality of die-casting.

The utility model provides a die-casting die for preventing die core deviation, which comprises an upper die structure and a lower die structure, wherein the upper die structure comprises an upper die push plate, an upper die base plate and a pouring gate, the pouring gate sequentially penetrates through the upper die push plate and the upper die base plate and is communicated with a die cavity of the upper die base, the lower die structure comprises a lower die base plate, a lower die base plate and a lower die base plate, the upper die base plate and the lower die base plate form a die core after die assembly, a guide rod is connected between the upper die push plate and the lower die base plate, each outer side surface of the upper die base is provided with an upper positioning convex ring, each outer side surface of the lower die base is provided with a lower positioning convex ring corresponding to the position of the upper positioning convex ring, a locking structure is arranged on the upper die push plate and comprises a lifting motor A and a locking shaft, the lifting motor A is arranged on the upper surface of the upper die push plate, one end of the locking shaft is connected with the power output end of the lifting motor A, the other end of the locking shaft penetrates through the upper die push plate and extends towards the direction of the die core, and when the die is in a die closing state, the locking shaft sequentially penetrates through the upper positioning convex ring and the lower positioning convex ring from top to bottom to realize locking action.

As a preferred scheme, the lower die base plate is connected with the lower die bottom plate through a support rod so as to form an interval space; the four sides of the lower die base plate are rotatably connected with heat dissipation structures; the heat dissipation structure comprises a mounting plate and a plurality of heat dissipation fins A sequentially arranged on one side surface of the mounting plate away from the mold core in an array mode, the length of the mounting plate is larger than the length of the side surfaces of the upper mold base and the lower mold base after mold closing, a slide rail is arranged on one side surface of the mounting plate with the heat dissipation fins A along the length direction of the side surface, the upper surface of the lower mold base plate corresponding to the heat dissipation structure is provided with a push-pull air cylinder, the power output end of the push-pull air cylinder is connected with a push-pull arm, the free end of the push-pull arm is movably connected with the slide rail through a slide block seat, and the lower portion of the mounting plate is rotatably connected with the lower mold base plate through a rotating shaft; when the push-pull arm is in the maximum extension state, the mounting plate and the lower die bottom plate form a vertical relation, and the mounting plate is close to one side surface of the die core and is in contact with the outer side wall of the die core.

As a preferred scheme, each side of the upper die base is provided with a yielding groove a corresponding to the mounting plate, each side of the lower die base is provided with a yielding groove B corresponding to the mounting plate, and when the push-pull arm is in a maximum extending state, the mounting plate is correspondingly embedded in the yielding groove a and the yielding groove B.

As a preferred scheme, a heat dissipation abdicating groove is formed in the position, corresponding to the die cavity, of the upper surface of the upper die holder, and a plurality of heat radiating fins B are sequentially arranged in the heat dissipation abdicating groove in an array mode; the lower surface of the lower die holder is provided with a heat dissipation abdicating groove at a position corresponding to the die cavity of the lower die holder, and a plurality of radiating fins B are sequentially arranged in the heat dissipation abdicating groove in an array mode.

Preferably, the lower surface of the upper die base is provided with a bump around the die cavity, the upper surface of the lower die base is provided with a bump abdicating groove around the die cavity, the bump is inserted into the bump abdicating groove, and the bump abdicating groove is internally attached with a high-temperature resistant sealing cushion layer.

The utility model has the advantages that:

1. when the die is in a die closing state, the locking shaft sequentially penetrates through the upper positioning convex ring and the lower positioning convex ring from top to bottom to realize locking action, so that the die core is prevented from deviating, and the die-casting quality is ensured;

2. the four sides of the lower die base plate are rotatably connected with heat dissipation structures, and when the die core needs to dissipate heat and cool after finishing the pouring action, the heat dissipation structures assist in dissipating heat and cooling, so that the heat dissipation and cooling speed is increased;

3. the upper die base and the lower die base are both provided with radiating fins B, so that the radiating and cooling speed is further increased;

4. set up the structure in lug and lug groove of stepping down to the lug is stepped down the inslot and is laminated and have high temperature resistant sealed cushion layer, thereby makes the compound die after, and the lug corresponds the gomphosis in the lug groove of stepping down, further promotes the compactness of compound die.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a schematic view of the upper and lower die structures in a clamped state.

Fig. 3 is a schematic view of the upper and lower die structures in a die-separated state.

Fig. 4 is an exploded view of the present invention.

FIG. 5 is a plan view of the upper die base (showing the bumps).

Figure 6 is a plan view of the lower die base (showing the bump relief slots).

The reference signs are: the structure comprises a guide rod 10, an upper die push plate 11, an upper die cushion plate 12, an upper die seat 13, an upper die structure 14, a heat dissipation structure 15, a lower die base plate 16, a lower die cushion plate 17, a support rod 18, a locking shaft 19, an upper positioning convex ring 20, a lower positioning convex ring 21, a lower die seat 22, a lower die structure 23, an abdicating groove B24, a push-pull arm 25, a push-pull cylinder 26, a slide rail 27, a slider seat 28, a lifting motor A29, a mounting plate 30, a heat dissipation fin A31, a spacing space 32, an abdicating groove A33, a heat dissipation abdicating groove 34, a heat dissipation fin B35, a sprue 36, a bump 37, a bump abdicating groove 38 and a locking structure 39.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the following detailed description and the accompanying drawings.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; 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 according to specific situations by those skilled in the art.

Please refer to fig. 1-6, the utility model provides a prevent die casting die of mold core skew, including last mold structure 14 and lower mold structure 23, go up mold structure 14 and include last mold push plate 11, go up mold backing plate 12, upper die base 13, runner 36, go up mold backing plate 12 and install the lower surface at last mold push plate 11, go up mold base 13 and install the lower surface at last mold backing plate 12, runner 36 runs through the die cavity intercommunication of last mold push plate 11 and upper die backing plate 12 and upper die base 13 in proper order. The lower die structure 23 comprises a lower die base plate 16, a lower die backing plate 17 and a lower die base plate 22, wherein the lower die backing plate 17 is arranged above the lower die base plate 16, the lower die backing plate 17 is connected with the lower die base plate 16 through a support rod 18 so as to form an interval space 32, and the lower die base plate 22 is arranged on the upper surface of the lower die backing plate 17. The upper die holder 13 and the lower die holder 22 are matched to form a die core, and a guide rod 10 is connected between the upper die push plate 11 and the lower die bottom plate 16.

Each lateral surface of upper die base 13 all is provided with location bulge loop 20, each lateral surface of lower die base 22 all is provided with the lower location bulge loop 21 that corresponds with last location bulge loop 20 position, be provided with locking structure 39 on last mould push pedal 11, locking structure 39 includes elevator motor A29, locking shaft 19, elevator motor A29 installs the upper surface at last mould push pedal 11, the one end and the power take off end of elevator motor A29 of locking shaft 19 are connected, the other end of locking shaft 19 runs through last mould push pedal 11 and extends to the direction of mold core, when being in the compound die state, elevator motor A29 power take off, make locking shaft 19 from last to running through last location bulge loop 20 and lower location bulge loop 21 in proper order down and realize locking action, thereby prevent that the mold core from taking place the skew, ensure the quality of die-casting.

The four sides of the lower die base plate 17 are rotatably connected with heat dissipation structures 15. The heat dissipation structure 15 comprises a mounting plate 30 and a plurality of heat dissipation fins A31 sequentially arranged on one side surface of the mounting plate 30 far away from the mold core in an array mode, the length of the mounting plate 30 is larger than the length of the side surfaces of the upper mold base 13 and the lower mold base 22 after mold closing, a slide rail 27 is arranged on one side surface of the mounting plate 30 with the heat dissipation fins A31 along the length direction of the side surface, push-pull air cylinders 26 are arranged on the upper surface of the lower mold base plate 16 corresponding to the heat dissipation structure 15, the power output ends of the push-pull air cylinders 26 are connected with push-pull arms 25, the free ends of the push-pull arms 25 are movably connected with the slide rails 27 through slide block seats 28, and the lower portions of the mounting plate 30 are rotatably connected with the lower mold base plate 17 through rotating shafts; when the push-pull arm 25 is in the maximum extension state, the mounting plate 30 is in a perpendicular relationship with the lower mold base plate 16, and the side of the mounting plate 30 close to the mold core is in contact with the outer side wall of the mold core. Each side of the upper die holder 13 is provided with a yielding groove a33 corresponding to the mounting plate 30, each side of the lower die holder 22 is provided with a yielding groove B24 corresponding to the mounting plate 30, and when the push-pull arm 25 is in a maximum extending state. After pouring is finished, when heat dissipation and cooling actions are required, the push-pull air cylinders 26 on all sides output power, the mounting plates 30 are pushed to be lifted to be perpendicular to the lower die base plate 16 through the push-pull arms 25, the mounting plates 30 are correspondingly embedded in the receding grooves A33 and the receding grooves B24, the side walls of the mounting plates 30 are attached to the inner groove arms of the receding grooves A33 and the receding grooves B24, and therefore heat dissipation and cooling are achieved by matching with the mold cores.

A heat dissipation abdicating groove 34 is formed in the position, corresponding to the die cavity, of the upper surface of the upper die holder 13, and a plurality of heat dissipation fins B35 are sequentially arranged in the heat dissipation abdicating groove 34 in an array manner; the lower surface of the lower die holder 22 is provided with a heat dissipation abdicating groove 34 at a position corresponding to the die cavity, and a plurality of heat dissipation fins B35 are sequentially arranged in the heat dissipation abdicating groove 34 in an array manner. Through such structural arrangement, the speed of heat dissipation and temperature reduction is further improved.

The lower surface of the upper die holder 13 is provided with a bump 37 around the die cavity, the upper surface of the lower die holder 22 is provided with a bump abdicating groove 38 around the die cavity for the bump 37 to be inserted into, and a high-temperature resistant sealing cushion layer is attached in the bump abdicating groove 38. Therefore, after the die is closed, the convex block is correspondingly embedded in the convex block receding groove, and the tightness of the die closing is further improved.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a die casting die of anti-mold core skew, includes mould structure (14) and lower mould structure (23), it includes mould push plate (11), last die cushion board (12), upper die base (13), runner (36) to go up mould structure (14), runner (36) run through in proper order go up mould push plate (11) and last die cushion board (12) with the die cavity intercommunication of upper die base (13), lower mould structure (23) include lower die bed board (16), lower die cushion board (17), die holder (22), upper die base (13) with form the mold core behind die holder (22) compound die, go up mould push plate (11) with be connected with guide bar (10), its characterized in that between lower die bed board (16): each outer side surface of the upper die holder (13) is provided with an upper positioning convex ring (20), each outer side surface of the lower die holder (22) is provided with a lower positioning convex ring (21) corresponding to the upper positioning convex ring (20), the upper die push plate (11) is provided with a locking structure (39), the locking structure (39) comprises a lifting motor A (29) and a locking shaft (19), the lifting motor A (29) is arranged on the upper surface of the upper die push plate (11), one end of the locking shaft (19) is connected with the power output end of the lifting motor A (29), the other end of the locking shaft (19) penetrates through the upper die push plate (11) and extends towards the direction of the die core, when the mould is in a mould closing state, the locking shaft (19) sequentially penetrates through the upper positioning convex ring (20) and the lower positioning convex ring (21) from top to bottom to realize locking action.

2. The die casting mold for preventing die core shift of claim 1, wherein: the lower die base plate (17) is connected with the lower die bottom plate (16) through a support rod (18) so as to form an interval space (32); the four sides of the lower die base plate (17) are rotatably connected with heat dissipation structures (15); the heat dissipation structure (15) comprises a mounting plate (30) and a plurality of heat dissipation fins A (31) which are sequentially arranged on the mounting plate (30) in an array mode and far away from one side face of the mold core, the length of the mounting plate (30) is larger than the length of the side faces of the upper mold base (13) and the lower mold base (22) after mold closing, a sliding rail (27) is arranged on one side face, provided with the heat dissipation fins A (31), of the mounting plate (30) along the length direction of the side face, a push-pull cylinder (26) is arranged on the upper surface of the lower mold base plate (16) and in a position corresponding to the heat dissipation structure (15), the power output end of the push-pull cylinder (26) is connected with a push-pull arm (25), the free end of the push-pull arm (25) is movably connected with the sliding rail (27) through a sliding block base (28), and the lower portion of the mounting plate (30) is rotatably connected with the lower mold base plate (17) through a rotating shaft; when the push-pull arm (25) is in the maximum extension state, the mounting plate (30) and the lower die bottom plate (16) form a vertical relation, and one side surface of the mounting plate (30) close to the die core is contacted with the outer side wall of the die core.

3. The die casting mold for preventing die core shift of claim 2, wherein: each side of upper die base (13) all be provided with the groove A (33) of stepping down that mounting panel (30) correspond, each side of die holder (22) all be provided with the groove B (24) of stepping down that mounting panel (30) correspond, when push-and-pull arm (25) were in the biggest state of stretching out, mounting panel (30) correspond the gomphosis in groove A (33) of stepping down and groove B (24) of stepping down.

4. The die casting mold for preventing die core shift of claim 1, wherein: a heat dissipation abdicating groove (34) is formed in the upper surface of the upper die holder (13) at a position corresponding to the die cavity of the upper die holder, and a plurality of cooling fins B (35) are sequentially arranged in the heat dissipation abdicating groove (34) in an array manner; the lower surface of the lower die holder (22) and the position corresponding to the die cavity of the lower die holder are provided with heat dissipation abdicating grooves (34), and a plurality of cooling fins B (35) are sequentially arranged in the heat dissipation abdicating grooves (34) in an array mode.

5. The die casting mold for preventing die core shift of claim 1, wherein: the lower surface of the upper die base (13) surrounds the die cavity and is provided with a convex block (37), the upper surface of the lower die base (22) surrounds the die cavity and is provided with a convex block abdicating groove (38) for the convex block (37) to be inserted into, and a high-temperature resistant sealing cushion layer is attached to the inner part of the convex block abdicating groove (38).