CN218656747U

CN218656747U - Moving die of die-casting die

Info

Publication number: CN218656747U
Application number: CN202222474847.6U
Authority: CN
Inventors: 吴恺; 刘海江; 陈小波; 洪广孝
Original assignee: Huayu Pilberg Anting Shanghai Nonferrous Parts Co ltd
Current assignee: Huayu Pilberg Anting Shanghai Nonferrous Parts Co ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-03-21
Anticipated expiration: 2032-09-19

Abstract

The utility model provides a movable mould of a die-casting mould, which comprises a movable mould body, a movable mould insert and a cooling core; the movable die insert is embedded in the top of the movable die body; the cooling core is vertically arranged in the movable mould body; the top end of the cooling core protrudes out of the top surface of the movable die insert; the bottom end of the cooling core is provided with a water inlet and a water outlet; the bottom end of the cooling core penetrates through the movable mold body, and the water inlet and the water outlet are located below the movable mold body, so that high-temperature molten metal entering the core can be prevented from flowing into the movable mold body along the water inlet and the water outlet of the cooling core to cause material channeling when the core is broken, and the follow-up cleaning process is reduced.

Description

Moving die of die casting die

Technical Field

The utility model relates to a product die-casting field especially relates to a die casting die's movable mould.

Background

The die-casting die generally comprises a fixed die and a movable die, wherein the movable die and the fixed die are matched to form a die cavity, and high-temperature molten alloy liquid enters the die cavity and is cooled by a cooling system to form a die-casting piece.

When a product has a forming hole and/or a forming cavity with a smaller size, a corresponding core is usually embedded in a core of a movable die, high-pressure cooling water is introduced into the core, good cooling water circulation is ensured, the temperature of the core is constant in the using process, and shrinkage cavities are prevented in the die-casting process.

Patent number 201420529753.7, the patent name is a die casting die with local cooling device, a local cooling core is disclosed, the one end of this local cooling core stretches into the die cavity inside, the other end is equipped with a water inlet and a delivery port, it can ensure that the core is the constancy of temperature in the use, the water inlet and the delivery port of cooling core all are located the movable mould inside, and extend to the movable mould outside through the delivery pipe and be connected with forced cooling water circulation device, in case local cooling core stretches into the inside one end of die cavity and breaks, high temperature melting's alloy liquid can get into in the delivery pipe through cracked core, because the delivery pipe is made by plastics, it can break to be heated, make high temperature melting's alloy liquid get into the movable mould inside, and scurry the material inside the movable mould, subsequent clearance degree of difficulty and clearance work load have been increased.

SUMMERY OF THE UTILITY MODEL

In view of the above prior art's shortcoming, the to-be-solved technical problem of the utility model is to provide a die casting die's movable mould, its with the cooling core advance, delivery port position adjustment in the movable mould bottom to when preventing the fracture of cooling core top, high temperature melting's alloy liquid gets into in the movable mould, effectively avoids the movable mould inside to scurry the material, reduces follow-up cleaning work.

In order to achieve the above objects and other related objects, the present invention provides a movable mold for die casting mold, which comprises a movable mold body, a movable mold insert and a cooling core; the movable die insert is embedded in the top of the movable die body; the cooling core is vertically arranged in the movable mould body; the top end of the cooling core protrudes out of the top surface of the movable die insert; the bottom end of the cooling core is provided with a water inlet and a water outlet; the bottom end of the cooling core penetrates through the movable mold body, and the water inlet and the water outlet are located below the movable mold body.

Preferably, the cooling core comprises a core body, a spot cooling tube and a joint; the core body vertically penetrates through the movable die insert, and the top of the core body protrudes out of the top surface of the movable die insert; a cavity is arranged in the mold core body, and the top of the spot cooling pipe is in threaded connection with the cavity; a water spraying pipe is arranged in the spot cooling pipe, and the top end of the water spraying pipe extends into the cavity; an annular pipe cavity is arranged between the water spraying pipe and the spot cooling pipe and is communicated with the cavity; the joint is positioned below the movable die body, and the bottom end of the spot cooling pipe penetrates through the movable die body to be connected with the joint; the water inlet and the water outlet are both positioned on the joint; the water inlet is communicated with a water spraying pipe; the water outlet is communicated with the annular tube cavity.

Preferably, a core supporting pipe is arranged below the core, and the core supporting pipe is sleeved on the spot cooling pipe; and a limiting part is arranged below the core supporting tube.

Preferably, a casting pushing mechanism is arranged on the lower portion of the movable mold body in a sliding mode; the casting ejecting mechanism comprises a push plate and a push rod fixing plate positioned above the push plate, a plurality of push rods are inserted into the push rod fixing plate, and the push rods are used for ejecting the casting; the outer diameter of the core supporting tube is not smaller than the bottom diameter of the core body; the limiting part is located below the push plate, and first through holes for the core supporting tube to penetrate through are formed in the push plate and the push rod fixing plate.

Preferably, the push rod fixing plate is provided with a guide post, and the bottom of the movable mold body is provided with a guide hole matched with the guide post.

Preferably, the spot-cooled tube is integrally formed with the fitting.

As above, the utility model relates to a die casting die's movable mould has following beneficial effect:

the utility model adjusts the water inlet and the water outlet of the cooling core to the lower part of the movable mold body, so that when the core is broken, the high-temperature molten metal entering the core flows into the movable mold body along the water inlet and the water outlet of the cooling core to cause material channeling, and the subsequent cleaning procedures are reduced; in addition, when the core is broken and needs to be replaced, only the limiting piece needs to be removed, the core supporting cylinder is drawn out, then the spot cooling pipe and the core body connected to the spot cooling pipe are drawn out together from the lower part of the driven die body, and then new core replacement is carried out; because the casting ejecting mechanism does not need to be removed in the whole replacement process, the replacement difficulty and the replacement time of the core are effectively reduced, and the core is quickly replaced.

Drawings

Fig. 1 is an internal cross-sectional view of the moving die of the medium pressure casting die of the present invention.

FIG. 2 is a perspective view of a cooling core.

FIG. 3 is an internal cross-sectional view of the cooling core.

Fig. 4 is a partially enlarged view of a portion a in fig. 3.

FIG. 5 is a view of the bottom plate, the limiting member and the cooling core.

Fig. 6 is a perspective view of the casting ejection mechanism.

Description of the reference figures:

the mold comprises a movable mold body 1, a bottom plate 11, a supporting connecting piece 12, a limiting piece 121, a movable mold insert 2, a cooling core 3, a core body 31, a cavity 31a, a spot cooling pipe 32, an annular pipe cavity 32a, a water spray pipe 33, a joint 34, a water inlet 3a, a water outlet 3b, a core supporting pipe 35, a push plate 51, a push rod fixing plate 52, a push rod 53 and a guide column 54.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. In addition, the terms such as "upper", "lower", "left", "right", "middle", etc. used in the present specification are used for clarity of description only, and are not used to limit the scope of the present invention, and the relative relationship between the terms can be changed or adjusted without substantial technical changes.

For convenience of description, in the following embodiments, each direction is defined as follows, a height direction of a movable die body is defined as an up-down direction, a length direction of the movable die body is defined as a left-right direction, and a width direction of the movable die body is defined as a front-back direction. Accordingly, in the view of fig. 2, the upper side of the paper surface is the upward direction, the lower side of the paper surface is the downward direction, the left side of the paper surface is the left direction, the right side of the paper surface is the right direction, the front side of the paper surface is the forward direction, and the rear side of the paper surface is the rear direction.

As shown in fig. 1 and 3, the utility model provides a movable die of a die casting mold for forming a casting in cooperation with a fixed die of the die casting mold, when the movable die and the fixed die are assembled, a mold cavity is formed between the movable die and the fixed die; the movable die of the die-casting die comprises a movable die body 1, a movable die insert 2 and a cooling core 3; the movable die insert 2 is embedded in the top of the movable die body 1; the cooling core 3 is vertically arranged in the movable mould body 1, and the top end of the cooling core 3 penetrates through the movable mould insert 2 and extends into the mould cavity; the bottom of the cooling core 3 passes through the movable mold body 1 and extends to the lower part of the movable mold body 1, and the part of the cooling core 3, which is positioned below the movable mold body 1, is provided with a water inlet 3a and a water outlet 3b, so that high-pressure cooling water enters the cooling core 3 from the water inlet 3a and is discharged from the water outlet 3b after internal circulation, and cooling at the top of the cooling core 3 is realized.

Because the water inlet 3a and the water outlet 3b are adjusted to the lower part of the movable mold body 1 from the interior of the driven mold body 1, when the cooling mold core 3 is broken and communicated with the mold cavity, the high-temperature alloy liquid entering the cooling mold core 3 from the mold cavity is directly discharged from the lower part of the driven mold body 1, the high-temperature alloy liquid is prevented from flowing into the movable mold body 1 and mixing in the movable mold body 1, and the subsequent cleaning operation of the movable mold body 1 is effectively reduced.

Further, as shown in fig. 2 to 4, the cooling core 3 includes a core body 31, a spot-cooling pipe 32, and a joint 34; the core body 31 is vertically arranged in the movable die insert 2 in a penetrating manner, the top of the core body 31 protrudes out of the top surface of the movable die insert 2 to extend into the die cavity, and the lower end of the spot cooling pipe 32 penetrates through the movable die body 1 and is connected with the joint 34; the water inlet 3a and the water outlet 3b are both positioned on the joint 34; a cavity 31a is arranged in the core body 31, and the top of the spot cooling pipe 32 is connected to the cavity 31a through threads; a water spraying pipe 33 is arranged in the chilling pipe 32, the top end of the water spraying pipe 33 extends into the top position of the cavity 31a, and the bottom end of the water spraying pipe 33 extends into the joint 34 and is communicated with the water inlet 3 a; an annular cavity 32a is arranged between the water spraying pipe 33 and the spot cooling pipe 32, and the annular cavity 32a is used for communicating the cavity 31a with the water outlet 3b; during the use, only need lead to high-pressure cold water in water inlet 3a department, high-pressure cold water can reach the top position department blowout of die cavity 31a through spray pipe 33, makes high-pressure cooling water and die cavity 31a contact and exchange the heat, and the heat absorption's exchange water can flow to delivery port 3b position through annular lumen 32a to discharge through delivery port 3b, repeats above-mentioned step, can reduce the temperature of core body 31 rapidly.

It is understood that the spot cooling pipe 32 is integrally formed with the joint 34 or screwed thereto, but not limited thereto, and the spot cooling pipe 32 is preferably integrally formed with the joint 34 in this embodiment.

Further, as shown in fig. 1, 2 and 5, a core support pipe 35 is provided below the core body 31, the core support pipe 35 is sleeved on the spot cooling pipe 32, and the diameter of the core support pipe 35 is not smaller than the bottom diameter of the core body 31; a limiting piece 121 is arranged below the core supporting tube 35, and the limiting piece 121 is positioned below the movable die body 1 and is relatively fixed with the movable die body 1 so as to realize supporting and limiting of the core supporting tube 35; preferably, the diameter of the core support tube 35 is equal to the bottom diameter of the core body 31.

As shown in fig. 1, 5 and 6, a casting ejecting mechanism is arranged at the lower part of the movable mold body 1 in a sliding manner; the casting push-out mechanism comprises a push plate 51 and a push rod fixing plate 52 positioned above the push plate 51, wherein a plurality of push rods 53 are inserted into the push rod fixing plate 52, and the push rods 53 are used for pushing out a casting; the bottom of the movable die body 1 is provided with a bottom plate 11 through a bolt, and the bottom plate 11 is provided with an opening for the push plate 51 to pass through; the limiting part 121 is located at the opening of the bottom plate 11 and below the push plate 51; the limiting member 121 is mounted on the bottom plate 11 through a supporting connecting member 12; the support connecting member 12 is provided with a second through hole for the core support tube 35 to pass through so as to limit the radial movement of the core support tube 35; the push plate 51 and the push rod fixing plate 52 are each provided with a first through hole through which the core support pipe 35 passes so that the casting push-out mechanism does not interfere with the cooling core 3 when moving up and down.

When the cooling core 3 is damaged and needs to be replaced, the limiting part 121 corresponding to the cooling core 3 is only required to be firstly removed from the supporting connecting piece 12, and the core supporting tube 35 is extracted from the bottom of the supporting connecting piece 12; then the spot cooling pipe 32 and the core body 31 in threaded connection with the spot cooling pipe 32 are drawn out from the bottom of the support connecting piece 12 together, and then a new cooling core can be replaced; because the casting ejecting mechanism does not need to be removed in the whole replacing process, the replacing difficulty and the replacing time of the core are effectively reduced, and the core is quickly replaced.

As shown in fig. 1 and 6, the push rod fixing plate 52 is provided with a guide post 54, and the bottom of the movable mold body 1 is provided with a guide hole matched with the guide post 54, so as to ensure the stability of the up-and-down movement of the casting push-out mechanism.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the claims of the present invention.

Claims

1. A movable die of a die-casting die comprises a movable die body (1), a movable die insert (2) and a cooling core (3); the movable die insert (2) is embedded in the top of the movable die body (1); the cooling core (3) is vertically arranged in the movable mould body (1); the top end of the cooling core (3) protrudes out of the top surface of the movable die insert (2), and the bottom end of the cooling core (3) is provided with a water inlet (3 a) and a water outlet (3 b); the cooling mold core is characterized in that the bottom end of the cooling mold core (3) penetrates through the movable mold body (1), and the water inlet (3 a) and the water outlet (3 b) are located below the movable mold body (1).

2. A movable die-casting die as claimed in claim 1, wherein the cooling core (3) comprises a core body (31), a spot-cooling pipe (32) and a joint (34); the core body (31) vertically penetrates through the movable die insert (2), and the top of the core body (31) protrudes out of the top surface of the movable die insert (2); a cavity (31 a) is arranged in the core body (31), and the top of the spot cooling pipe (32) is in threaded connection with the cavity (31 a); a water spray pipe (33) is arranged in the spot cooling pipe (32), and the top end of the water spray pipe (33) extends into the cavity (31 a); an annular cavity (32 a) is formed between the water spraying pipe (33) and the spot cooling pipe (32), and the annular cavity (32 a) is communicated with the cavity (31 a); the joint (34) is positioned below the movable mold body (1), and the bottom end of the spot cooling pipe (32) penetrates through the movable mold body (1) and is connected with the joint (34); the water inlet (3 a) and the water outlet (3 b) are both positioned on the joint (34); the water inlet (3 a) is communicated with a water spraying pipe (33); the water outlet (3 b) is communicated with the annular cavity (32 a).

3. The movable die casting die as claimed in claim 2, wherein a core support pipe (35) is provided below the core body (31), the core support pipe (35) being fitted over the spot cooling pipe (32); a limiting piece (121) is arranged below the core supporting tube (35).

4. A movable die for a die casting mold according to claim 3, wherein a casting push-out mechanism is provided slidably in a lower portion of the movable die body (1); the casting ejecting mechanism comprises a push plate (51) and a push rod fixing plate (52) positioned above the push plate (51), a plurality of push rods (53) are inserted into the push rod fixing plate (52), and the push rods (53) are used for ejecting the casting; the outer diameter of the core supporting pipe (35) is not less than the bottom diameter of the core body (31); the limiting piece (121) is positioned below the push plate (51), and the push plate (51) and the push rod fixing plate (52) are respectively provided with a first through hole for the core supporting tube (35) to pass through.

5. The movable die of the die-casting die as claimed in claim 4, wherein the push rod fixing plate (52) is provided with a guide post (54), and the bottom of the movable die body (1) is provided with a guide hole matched with the guide post (54).

6. A moving die for a die casting mold as claimed in claim 2, wherein the spot-cooled tube (32) is formed integrally with the joint (34).