CN215199603U

CN215199603U - Die casting die with core pulling structure

Info

Publication number: CN215199603U
Application number: CN202022895632.2U
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: 2021-12-17
Anticipated expiration: 2030-12-03

Abstract

The utility model provides a die casting die with a core pulling structure, which comprises an upper padding plate, an upper template, a lower die holder and a lower padding plate, wherein a casting channel is arranged in the upper padding plate and the upper template; the slider is provided with a positioning inclined hole parallel to the inclined rod, the inclined rod is connected in the positioning inclined hole in a sliding mode, one side, close to the center of the upper die plate, of the slider is provided with a half die cavity, the half die cavity is located below the baffle, and the side wall, far away from the center of the upper die plate, of the half die cavity is fixed with a side forming part. The utility model can be used for pulling cores without occupying extra time, and can effectively simplify the structure of the die-casting die; when the core is pulled, the position of the die casting can be effectively limited by the baffle, and the core pulling and material removing actions are stable and reliable.

Description

Die casting die with core pulling structure

Technical Field

The utility model relates to a die casting die specifically discloses a die casting die with structure of loosing core.

Background

The die casting is a process of filling a die cavity with molten metal at high pressure and high speed, and crystallizing and solidifying the molten metal at high pressure to form a casting. 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 die-casting die can be used for producing different metal die castings, different die castings need to be equipped with the die-casting die that has different structures, and some die castings need form specific shape structure at the side, and in the prior art, be provided with the structure of loosing core at die cavity side of die-casting die for form required lateral structure, but this kind of structure of loosing core need be equipped with independent drive structure, will lead to die-casting die's with high costs, still can prolong production cycle.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a die casting die with structure of loosing core to solve the prior art problem, can effectively simplify die casting die's structure, and loose core takes off the material action reliable and stable, low in production cost.

In order to solve the prior art problem, the utility model discloses a die casting die with a core pulling structure, which comprises an upper padding plate, an upper template, a lower template seat and a lower padding plate, wherein a casting channel is arranged in the upper padding plate and the upper template;

the slider is provided with a positioning inclined hole parallel to the inclined rod, the inclined rod is connected in the positioning inclined hole in a sliding mode, one side, close to the center of the upper die plate, of the slider is provided with a half die cavity, the half die cavity is located below the baffle, and the side wall, far away from the center of the upper die plate, of the half die cavity is fixed with a side forming part.

Furthermore, one side of the half female die cavity, which is far away from the center of the upper die plate, is connected with a slot matched with the baffle.

Further, the both sides of spout all are equipped with the spacing groove, and the relative both sides of slider all are equipped with the stopper, and stopper sliding connection is in the spacing groove.

Furthermore, the bottom of the side, close to the center of the upper die plate, of the sliding block is provided with a first inclined plane, the material ejecting mechanism comprises a spring, a lifting block and a material ejecting block, the lifting block is connected to the bottom of the cavity of the material ejecting cavity through the spring, the material ejecting block is fixed on the lifting block, and the projection area of the material ejecting block is smaller than that of the lifting block.

Furthermore, both sides of the top of the lifting block are provided with a second inclined plane, and the second inclined plane is opposite to the first inclined plane.

Furthermore, both sides of the top of the material pushing block are provided with third inclined planes, and the third inclined planes are opposite to the first inclined planes.

The utility model has the advantages that: the utility model discloses a die casting die with core pulling structure is provided with a special slider core pulling structure, can move along with the action of opening and closing a die, and the core pulling does not need to occupy extra time, can finish the core pulling operation while the die sinking, can also effectively simplify the structure of the die casting die, does not need to be provided with an extra driving mechanism, and can effectively reduce the production cost; and when the core is pulled, the position of the die casting can be effectively limited by the baffle, so that the die casting is prevented from not being effectively separated from the half-cavity die cavity due to the fact that the die casting moves towards one side, and the core pulling and material removing actions are stable and reliable.

Drawings

Fig. 1 is a schematic view of the internal structure of the die assembly of the present invention.

Fig. 2 is a schematic view of the internal structure of the utility model during mold opening.

Fig. 3 is a schematic view of the three-dimensional structure of the utility model when opening the mold.

The reference signs are: the die casting device comprises an upper padding plate 10, a casting channel 11, an upper template 20, an inclined rod 21, a baffle 22, a lower template 30, a sliding groove 31, a limiting groove 32, a first inclined surface 33, a lower die holder 40, a material ejecting cavity 41, a lower padding plate 50, a sliding block 60, a positioning inclined hole 61, a half female die cavity 62, a side forming part 63, a slot 64, a limiting block 65, a material ejecting mechanism 70, a spring 71, a lifting block 72, a second inclined surface 721, a material ejecting block 73, a third inclined surface 731 and a die casting part 80.

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 accompanying drawings and detailed description.

Refer to fig. 1 to 3.

The embodiment of the utility model discloses die casting die with structure of loosing core, include from last to setting gradually upper padding plate 10 down, cope match-plate pattern 20, lower bolster 30, die holder 40 and lower bolster 50, be equipped with same casting passageway 11 in upper padding plate 10 and the cope match-plate pattern 20, the bottom of cope match-plate pattern 20 is fixed with two down tubes 21 and two baffles 22, down tube 21 is from last to keeping away from the center slope of cope match-plate pattern 20 down, two baffles 22 are located between two down tubes 21, casting passageway 11 is located between two baffles 22, be equipped with spout 31 in the lower bolster 30, the line between two down tubes 21 is parallel to each other with spout 31, spout 31 runs through the relative both sides of lower bolster 30, sliding connection has two sliders 60 in the spout 31, be equipped with liftout chamber 41 in the die holder 40, be equipped with liftout mechanism 70 in the liftout chamber 41;

each sliding block 60 is provided with a positioning inclined hole 61 parallel to the inclined rod 21, the two inclined rods 21 are respectively connected in the two positioning inclined holes 61 in a sliding manner, one side of each sliding block 60 close to the center of the upper die plate 20 is provided with a half cavity 62, namely, the half cavity 62 is positioned on one side of the positioning inclined hole 61 close to the center of the upper die plate 20, the two half cavities 62 can be combined to form a die-casting cavity, the two half cavities 62 are respectively positioned below the two baffle plates 22, a side molding part 63 is fixed on the side wall of the half cavity 62 far away from the center of the upper die plate 20, the side molding part 63 can be a transversely arranged rod or plate and other structural parts used for adjusting the shape of the die-casting cavity, and preferably, the side molding part 63 and the half cavity 62 are of an integrally molded structure.

When the die is closed, as shown in fig. 1, the upper die plate 20 is tightly attached to the upper side of the lower die plate 30, the sides of the two sliders 60 are tightly attached and contacted under the driving action of the diagonal rod 21, the two half die cavities 62 are spliced to form a die-casting die cavity, the baffle 22 is inserted into the half die cavities 62, molten metal is cast into the die cavity through the casting channel 11, and a die-casting part 80 is obtained after the molten metal is solidified and formed; during die opening, as shown in fig. 2 and 3, the upper die plate 20 is far away from the lower die plate 30 and ascends, the slider 60 moves far away from the center of the upper die plate 20 under the action of the inclined rod 21, the two half die cavities 62 are separated from two sides of the die casting 80 in a back-to-back manner, the baffle 22 can effectively limit the position of the die casting 80 from two sides of the top, so that the die casting 80 is prevented from moving to one side along with one slider 60, the die casting 80 can be ensured to be effectively separated from the half die cavities 62 and the side forming parts 63, stripping operation is reliable and continuous, and finally the die casting 80 is ejected and stripped by the ejection mechanism 70.

In the present embodiment, a slot 64 matching with the baffle plate 22 is connected to one side of each half cavity 62 away from the center of the upper platen 20, and when the mold is closed, the baffle plate 22 is inserted into the slot 64, so that the design of the cavity is less limited, and the general range is wider.

In this embodiment, both sides of the sliding groove 31 are provided with the limiting grooves 32, the limiting grooves 32 are parallel to the sliding groove 31, the two opposite sides of each sliding block 60 are provided with the limiting blocks 65, each limiting block 65 is connected to each limiting groove 32 in a sliding manner, the position of the sliding block 60 can be effectively limited by the limiting blocks 65 matching with the limiting grooves 32, the sliding block 60 is prevented from moving along the upper and lower direction deviating from the lower template 30, the moving track of the sliding block 60 can be ensured to be always in a translation manner, and the stability of die opening and die closing actions is improved.

In this embodiment, the bottom of each slider 60 near the center of the upper mold plate 20 is provided with a first inclined surface 33, the first inclined surface 33 inclines from top to bottom away from the center of the upper mold plate 20, the ejector mechanism 70 includes a spring 71, an elevator block 72 and an ejector block 73, the elevator block 72 is connected to the cavity bottom of the ejector cavity 41 through the spring 71, the ejector block 73 is fixed on the elevator block 72, the projection area of the ejector block 73 is smaller than that of the elevator block 72, that is, the ejector block 73 and the elevator block 72 form a structural member with a convex cross section, when the mold is opened, the two sliders 60 move away from each other, an ejector channel is formed between the two sliders 60, the elevator block 72 and the ejector block 73 rise under the action of the spring 71, the ejector block 73 ejects the die casting 80, the two first inclined surfaces 33 effectively limit the ejector block 73 in the ejector cavity 41, and can effectively ensure that the first inclined surface 33 can effectively act on the ejector block 73 when the mold is closed again, thereby causing the ejector pad 73 to be driven down to reset.

Based on the above embodiment, the two sides of the top of the lifting block 72 are both provided with a second inclined surface 72, preferably, the second inclined surface 72 is parallel to the first inclined surface 33, and the two second inclined surfaces 721 are respectively opposite to the two first inclined surfaces 33, so that the stability and smoothness of the descending action of the lifting block 72 pushed by the slider 60 can be effectively improved.

In this embodiment, the third inclined surfaces 731 are disposed on two sides of the top of the ejector block 73, preferably, the third inclined surfaces 731 are parallel to the first inclined surfaces 33, and the two third inclined surfaces 731 are respectively opposite to the two first inclined surfaces 33, so that the stability and smoothness of the sliding block 60 for pushing the ejector block 73 to descend can be effectively improved, and preferably, the ejector block 73 has a quadrangular frustum pyramid structure.

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. A die-casting die with a core-pulling structure comprises an upper backing plate (10), an upper die plate (20), a lower die plate (30), a lower die holder (40) and a lower backing plate (50), wherein a casting channel (11) is arranged in the upper backing plate (10) and the upper die plate (20), the die-casting die is characterized in that two inclined rods (21) and two baffles (22) are fixed at the bottom of the upper die plate (20), the two baffles (22) are positioned between the two inclined rods (21), a sliding chute (31) is arranged in the lower die plate (30), two sliding blocks (60) are connected in the sliding chute (31) in a sliding manner, a material ejecting cavity (41) is arranged in the lower die holder (40), and a material ejecting mechanism (70) is arranged in the material ejecting cavity (41);

be equipped with on slider (60) with location inclined hole (61) that down tube (21) are parallel, down tube (21) sliding connection in location inclined hole (61), slider (60) are close to be equipped with half die cavity (62) on one side at cope match-plate pattern (20) center, half die cavity (62) are located the below of baffle (22), half die cavity (62) are kept away from the lateral wall at cope match-plate pattern (20) center is fixed with side formed part (63).

2. The die casting mold with the core pulling structure as set forth in claim 1, wherein a slot (64) matching with the baffle (22) is connected to a side of the half cavity (62) away from the center of the upper die plate (20).

3. The die-casting die with the core-pulling structure is characterized in that limiting grooves (32) are formed in two sides of the sliding groove (31), limiting blocks (65) are formed in two opposite sides of the sliding block (60), and the limiting blocks (65) are connected in the limiting grooves (32) in a sliding mode.

4. The die-casting die with the core-pulling structure is characterized in that a first inclined surface (33) is arranged at the bottom of one side, close to the center of the upper die plate (20), of the sliding block (60), the material ejecting mechanism (70) comprises a spring (71), an elevating block (72) and an ejecting block (73), the elevating block (72) is connected to the cavity bottom of the material ejecting cavity (41) through the spring (71), the ejecting block (73) is fixed on the elevating block (72), and the projection area of the ejecting block (73) is smaller than that of the elevating block (72).

5. The die-casting die with the core-pulling structure as recited in claim 4, wherein a second inclined surface (721) is arranged on each of two sides of the top of the lifting block (72), and the second inclined surfaces (721) are opposite to the first inclined surfaces (33).

6. The die-casting die with the core-pulling structure as claimed in claim 4 or 5, wherein a third inclined surface (731) is arranged on each of two sides of the top of the ejector block (73), and the third inclined surface (731) is opposite to the first inclined surface (33).