CN115608948A - Cell-phone medium plate die casting die - Google Patents

Cell-phone medium plate die casting die Download PDF

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Publication number
CN115608948A
CN115608948A CN202211180209.1A CN202211180209A CN115608948A CN 115608948 A CN115608948 A CN 115608948A CN 202211180209 A CN202211180209 A CN 202211180209A CN 115608948 A CN115608948 A CN 115608948A
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CN
China
Prior art keywords
die
casting
hydraulic oil
connecting seat
mobile phone
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Pending
Application number
CN202211180209.1A
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Chinese (zh)
Inventor
汤建国
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Dongguan Rixin Hardware Electronics Co ltd
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Dongguan Rixin Hardware Electronics Co ltd
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Application filed by Dongguan Rixin Hardware Electronics Co ltd filed Critical Dongguan Rixin Hardware Electronics Co ltd
Priority to CN202211180209.1A priority Critical patent/CN115608948A/en
Publication of CN115608948A publication Critical patent/CN115608948A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/2218—Cooling or heating equipment for dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/2227—Die seals

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

The invention provides a die-casting die for a middle plate of a mobile phone, and relates to the technical field of die-casting of middle plates of mobile phones. This cell-phone medium plate die casting die, including bottom die-casting base, bottom die-casting base top position is provided with top support frame surface fixed connection has the die connecting seat under the top support frame, and sub-mould of fixedly connected with is inlayed to die connecting seat surface position, and sub-mould runs through with die connecting seat lateral wall position and has seted up die-casting aspirating hole top support frame, die connecting seat below position is provided with the die-casting loading board. The die-casting die is not influenced by the temperature generated by die-casting during die-casting, the influence on the die-casting precision due to high temperature caused by die-casting work is avoided, meanwhile, the die-casting die with four rows of positions is formed by four die-casting dies and sub dies which are arranged in a rectangular shape, the die-casting efficiency of the mobile phone middle plate is greatly improved, and meanwhile, the mode of double combination of die-casting and casting forming is adopted, so that the forming selection range of the mobile phone middle plate is wide.

Description

Cell-phone medium plate die casting die
Technical Field
The invention relates to the technical field of mobile phone middle plate die casting, in particular to a mobile phone middle plate die casting die.
Background
The cell-phone medium plate is the carrier of cell-phone spare parts such as fixed cell-phone screen, camera and mainboard, cell-phone medium plate is when manufacturing in prior art, cell-phone medium plate production part is through CNC lathe processing among the prior art, cause low in production efficiency, and high in production cost, also some medium plates are through die-casting shaping, but in order to guarantee the good thermal diffusivity of equipment when cell-phone medium plate die-casting among the prior art, generally one is two discharge structures, die-casting efficiency is low, and produce heat in the die-casting process, influence the die-casting precision, and the die-casting function is single, the selectivity is low.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a die-casting die for a mobile phone middle plate, which solves the problems that the efficiency is low, the cost is high and the die-casting precision is influenced due to high temperature in the long-time die-casting process of the mobile phone middle plate.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a cell-phone medium plate die casting die, includes bottom die-casting base, bottom die-casting base top position is provided with the top support frame fixedly connected with die connecting seat in the surface position under the top support frame, sub-mould of fixedly connected with is inlayed to die connecting seat surface position, sub-mould runs through with die connecting seat lateral wall position and has seted up the die-casting aspirating hole.
Through above-mentioned technical scheme, can fix sub-mould through the die connecting seat, conveniently control sub-mould for sub-mould cooperates with die casting die and uses the completion die-casting work, conveniently realizes supplementary heat dissipation through the die-casting aspirating hole.
The utility model discloses a die casting device, including mould connecting seat, die-casting loading board, fixedly connected with die casting die is inlayed to die casting loading board upper surface position, and die casting die and submodule mould are mutually supported, submodule mould edge and die-casting loading board bottom position run through sliding connection have the cooling distributive pipe, die-casting loading board lateral wall position runs through the die-casting aspirating hole of seting up a plurality of evenly distributed, through the adjustment to the product ranking, has significantly reduced the die-casting area, has reduced the individual inter-unit thickness difference of foundry goods (within 0.03), and the original structural mode thickness deviation of trade is greater than 0.1mm even.
Through above-mentioned technical scheme, the cold water in the cooling water distribution pipe realizes the circulation, can effectually dispel the heat to die-casting loading board, mould connecting seat and hydraulic cylinder position, avoids causing the die-casting precision to reduce because of high temperature, and through the continuous optimization adjustment of convection current way, lets the mould be applicable to littleer board.
Preferably, an injection cylinder is fixedly connected to the upper surface of the die-casting bearing plate, and the injection cylinder is connected with the top of the top support frame in a penetrating and sliding mode.
Preferably, the positions of two sides below the die-casting bearing plate are fixedly connected with two symmetrically-arranged hydraulic oil bins, the side wall positions of the two hydraulic oil bins are provided with through oil holes in a penetrating manner, the top positions of the two hydraulic oil bins are fixedly connected with two symmetrically-arranged hydraulic oil cylinders, and the hydraulic oil cylinders are connected with the through oil holes through hoses.
Through above-mentioned technical scheme, provide the oil pressure for hydraulic cylinder through hydraulic oil storehouse, guarantee hydraulic cylinder's normal work.
Preferably, the telescopic end of the hydraulic oil cylinder is connected with four corner positions of the lower surface of the die-casting bearing plate in a penetrating and sliding manner, and the telescopic end of the hydraulic oil cylinder is fixedly connected with four corner positions of the lower surface of the top support frame.
Through above-mentioned technical scheme, conveniently control the die connecting seat through hydraulic cylinder, sub-mould and die casting die punching press cooperation through the die connecting seat position.
Preferably, two be provided with the knockout drum between the hydraulic oil storehouse, and knockout drum lateral wall position has seted up circulating pipe, and has run through fixed connection with the knockout drum top by cooling knockout drum, two the position is provided with connection base below the hydraulic oil storehouse.
Preferably, the upper surface of the connecting base is fixedly connected with the bottom of the hydraulic oil bin and the bottom of the water distribution box at corresponding positions, and the bottom of the connecting base is fixedly connected with a bottom die-casting base.
Preferably, the top support frame and the bottom die-casting base are provided with through limiting holes at four corners of the upper surface.
Preferably, the specific working method of the mobile phone middle plate die-casting die is as follows:
the method comprises the following steps:
firstly, connecting a water inlet pipe and a water outlet pipe of a circulating water pump with a water inlet hole and a water outlet hole of a water distribution box through hoses, starting the circulating water pump to circulate water flow in a cold water distribution pipe, and cooling a hydraulic oil cylinder, a die-casting bearing plate and a die connecting seat;
starting a hydraulic oil cylinder, lifting the die connecting seat and the top supporting frame through the hydraulic oil cylinder, placing the aluminum plate at four corresponding die-casting die positions, and pressing the die connecting seat downwards through the hydraulic oil cylinder, so that die-casting can be carried out through the sub-die and the die-casting die;
after the die connecting seat is pressed down, the top supporting frame and the die connecting seat are lifted up through a hydraulic oil cylinder, and the die-cast aluminum alloy middle plate is taken down from the die-casting bearing plate;
the second method comprises the following steps:
firstly, connecting a water inlet pipe and a water outlet pipe of a circulating water pump with a water inlet hole and a water outlet hole of a water distribution box through hoses, starting the circulating water pump to circulate water flow in a cold water distribution pipe, and cooling a hydraulic oil cylinder, a die-casting bearing plate and a die connecting seat;
pressing the sub-dies of the four dies arranged in a rectangular shape and the die-casting die through a hydraulic oil cylinder, and injecting casting and medium liquid into the die-casting die through a pressure injection cylinder to cast the mobile phone middle plate;
and step three, after casting is finished, rapidly cooling and forming under the action of a cold water diversion pipe, separating the sub-mold from the die-casting mold through a hydraulic oil cylinder, and taking out the cast and formed mobile phone middle plate.
(III) advantageous effects
The invention provides a mobile phone middle plate die-casting die. The method has the following beneficial effects:
1. according to the die-casting machine, the cooling water distributing pipe is arranged in the die-casting machine, the die-casting bearing plate, the hydraulic oil cylinder, the die connecting seat and the sub-dies are cooled through the cooling water distributing pipe, the die-casting precision can be effectively prevented from being reduced, the service life of equipment is prolonged, meanwhile, the die-casting die is provided with the injection cylinder, casting liquid is injected into the four die-casting dies which are distributed in a rectangular mode through the injection cylinder, four-production die-casting is achieved through the four sub-dies which are distributed in the rectangular mode, the die-casting forming efficiency is improved, meanwhile, the influence of high temperature on die-casting is avoided, and meanwhile, the middle plate of the cast mobile phone can be rapidly cooled and formed.
2. According to the invention, four uniformly arranged sub-dies and die-casting dies are arranged to be matched, so that the die-casting efficiency of the mobile phone middle plate is greatly improved, the time for machining the four mobile phone middle plates by a traditional CNC (computer numerical control) machine tool is 8-10 minutes, and the time for machining the mobile phone middle plates by a traditional die-casting technology is 2-2.5 minutes, but the invention can be used for die-casting by a hydraulic oil cylinder and the sub-dies only by putting an aluminum plate into the die-casting dies, so that the sub-dies and the die-casting dies with four displacement structures are die-cast simultaneously, the operation efficiency is greatly improved, the production time of the four mobile phone middle plates is shortened to 22-28 seconds, the traditional displacement structure mode of 1X2 of the mobile phone middle plates in the industry is broken, and after repeated verification, a 1X4 displacement structure mode is introduced, the dies can ensure stable production on a 400T die-casting machine, the production efficiency is greatly improved, namely, the limit capacity of the traditional die-casting technology combined with the self condition of equipment per day is 8000 pieces, and the invention reaches 14000 pieces per shift per day.
Drawings
Fig. 1 is a schematic structural diagram of a die-casting mold position of a mobile phone middle plate die-casting mold according to the present invention;
fig. 2 is a schematic perspective view of a die-casting mold for a middle plate of a mobile phone according to the present invention;
fig. 3 is a schematic partial structure diagram of a die-casting mold for a middle plate of a mobile phone according to the present invention;
fig. 4 is a schematic structural diagram of a position of a die-casting mold of a mobile phone middle plate die-casting mold according to the present invention;
fig. 5 is a schematic structural diagram of connection of a die-casting mold and an injection cylinder of the die-casting mold for the middle plate of the mobile phone.
Wherein, 1, base die-casting; 2. a connection base; 3. die-casting a pressure relief hole; 4. a top support frame; 5. the limiting hole is penetrated; 6. a mold connecting seat; 7. die-casting a bearing plate; 8. a hydraulic oil sump; 9. die-casting the air extraction hole; 10. a through oil hole; 11. a hydraulic cylinder; 12. a sub-mold; 13. an injection cylinder; 14. a water distribution box; 15. a die-casting die; 16. and cooling the water distribution pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1 to 5, an embodiment of the present invention provides a mobile phone middle plate die-casting mold, including a bottom die-casting base 1, a top support frame 4 is disposed above the bottom die-casting base 1, four corners of the upper surfaces of the top support frame 4 and the bottom die-casting base 1 are provided with through limit holes 5 in a penetrating manner, and a mold connecting seat 6 is fixedly connected to the lower surface of the top support frame 4.
Fixedly connected with sub-mould 12 is inlayed to mould connecting seat 6 lower surface position, and sub-mould 12 runs through with mould connecting seat 6 lateral wall position and has seted up die-casting aspirating hole 9, and mould connecting seat 6 below position is provided with die-casting loading board 7, and die-casting loading board 7 below both sides position fixedly connected with two hydraulic oil bins 8 that the symmetry set up.
Be provided with water knockout drum 14 between two hydraulic oil storehouses 8, and the circulating pipe has been seted up to water knockout drum 14 lateral wall position, and the cooling water knockout drum 16 with 14 tops of water knockout drum run through fixed connection, two hydraulic oil storehouses 8 below position is provided with connecting base 2, connecting base 2 upper surface and the hydraulic oil storehouse 8 bottom and the water knockout drum 14 bottom fixed connection of corresponding position.
2 bottom fixedly connected with bottom die-casting bases 1 of connection base, and 8 lateral wall positions in two hydraulic oil storehouses run through to have offered and run through oilhole 10, the hydraulic cylinder 11 that two symmetries set up of 8 top fixedly connected with in two hydraulic oil storehouses, sliding connection is run through with four corner positions on 7 lower surfaces of die-casting loading board to hydraulic cylinder 11's flexible end.
The telescopic end of the hydraulic oil cylinder 11 is fixedly connected with four corner positions of the lower surface of the top support frame 4, the hydraulic oil cylinder 11 is connected with the through oil hole 10 through a hose, the upper surface of the die-casting bearing plate 7 is fixedly connected with an injection cylinder 13, and the injection cylinder 13 is connected with the top of the top support frame 4 in a sliding mode in a penetrating mode.
The upper surface of the die-casting bearing plate 7 is fixedly connected with a die-casting die 15 in an embedded mode, the die-casting die 15 is matched with a sub-die 12, the edge of the sub-die 12 is connected with a cooling water distribution pipe 16 in a penetrating mode at the bottom of the die-casting bearing plate 7, a plurality of die-casting air extraction holes 9 which are evenly distributed are formed in the side wall of the die-casting bearing plate 7 in a penetrating mode, an injection cylinder 13 in the middle of the four die-casting dies 15 is connected with a pipeline of casting solution, molten media are injected into the die-casting die 15, the molten media are cooled between the die-casting die 15 and the sub-die 12 through matching of the die-casting die 15 and the sub-die 12, and the middle plate of the mobile phone is formed.
Example two:
the specific working method of the mobile phone middle plate die-casting die is as follows:
the method comprises the following steps:
the first step is that a limiting slide rod is arranged at the positions of through limiting holes 5 at the positions of a bottom die-casting base 1 and a top supporting frame 4, two ends of the limiting slide rod are fixedly connected with the top and the bottom of a die-casting machine, and the deformation and bending of the telescopic end of the hydraulic oil cylinder 11 caused by the fact that the hydraulic oil cylinder 11 is subjected to longitudinal shearing force when lifted can be effectively avoided through the limiting slide rod.
Firstly, connecting a water inlet pipe and a water outlet pipe of a circulating water pump with a water inlet hole and a water outlet hole of a water distribution box 14 through hoses, starting the circulating water pump to circulate water in a cold water distribution pipe 16, and cooling the hydraulic oil cylinder 11, the die-casting bearing plate 7 and the die connecting seat 6;
step three, starting a hydraulic oil cylinder 11, lifting the die connecting seat 6 and the top supporting frame 4 through the hydraulic oil cylinder 11, placing the aluminum plate at four corresponding positions of a die-casting die 15, and pressing the die connecting seat 6 downwards through the hydraulic oil cylinder 11, so that die-casting can be carried out through the sub-die 12 and the die-casting die 15;
and step four, after the die connecting seat 6 is pressed down, the top supporting frame 4 and the die connecting seat 6 are lifted up through the hydraulic oil cylinder 11, and the die-cast aluminum alloy middle plate is taken down from the die-casting bearing plate 7.
The second method comprises the following steps:
firstly, connecting a water inlet pipe and a water outlet pipe of a circulating water pump with a water inlet hole and a water outlet hole of a water distribution box 14 through hoses, starting the circulating water pump to circulate water in a cold water distribution pipe 16, and cooling a hydraulic oil cylinder 11, a die-casting bearing plate 7 and a die connecting seat 6;
pressing the sub-dies 12 of the four dies which are arranged in a rectangular manner and are arranged with the die-casting die 15 through the hydraulic oil cylinder 11, and injecting casting and medium liquid into the die-casting die 15 through the pressure injection cylinder 13 to cast the middle plate of the mobile phone;
and step three, after casting is finished, rapidly cooling and forming under the action of a cold water diversion pipe 16, separating the sub-mold 12 from the die-casting mold 15 through the hydraulic oil cylinder 11, and taking out the cast and formed mobile phone middle plate.
Example three:
the difference between the first embodiment and the second embodiment lies in that the cold water diversion pipe 16 can be replaced by a heat exchange copper pipe, one end of the heat exchange copper pipe is connected with a turbo blower, the heat at the positions of the hydraulic oil cylinder 11, the die-casting bearing plate 7 and the die connecting seat 6 is absorbed by the heat exchange copper pipe, and the turbo blower is used for realizing that the air flow in the heat dissipation copper pipe flows at a high speed to take away the heat so as to realize quick heat dissipation.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a cell-phone medium plate die casting die, includes bottom die-casting base (1), its characterized in that: a top support frame (4) is arranged above the bottom die-casting base (1), a die connecting seat (6) is fixedly connected to the lower surface of the top support frame (4), a sub-die (12) is fixedly connected to the lower surface of the die connecting seat (6) in an embedded mode, and a die-casting air exhaust hole (9) is formed in the side wall position of the sub-die (12) and the die connecting seat (6) in a penetrating mode;
a die-casting bearing plate (7) is arranged below the die connecting seat (6), a die-casting die (15) is fixedly connected to the upper surface of the die-casting bearing plate (7) in an embedded mode, an injection cylinder (13) is fixedly connected to the upper surface of the die-casting bearing plate (7), the injection cylinder (13) is connected with the top of the top supporting frame (4) in a penetrating and sliding mode, the die-casting die (15) arranged on the surface of the bearing plate (7) is of four row position structures in rectangular distribution, two shunt pipelines are arranged on two sides of the injection cylinder (13), and four liquid outlet heads of the two shunt pipelines are respectively connected with the four die-casting dies (15) in rectangular distribution to form a four-out die-casting die;
the die-casting die (15) is matched with the sub-die (12), the edge of the sub-die (12) is connected with the bottom of the die-casting bearing plate (7) in a penetrating and sliding mode through a cooling water distribution pipe (16), and the side wall of the die-casting bearing plate (7) is provided with a plurality of die-casting air suction holes (9) which are evenly distributed in a penetrating mode.
2. The die-casting die for the middle plate of the mobile phone according to claim 1, wherein: die-casting loading board (7) below both sides position fixedly connected with hydraulic oil storehouse (8) that two symmetries set up, and two hydraulic oil storehouse (8) lateral wall positions run through and have seted up and run through oilhole (10), two hydraulic oil storehouse (8) top position fixedly connected with hydraulic cylinder (11) that two symmetries set up, and hydraulic cylinder (11) with run through oilhole (10) and pass through the hose connection.
3. The die-casting die for the middle plate of the mobile phone as claimed in claim 2, wherein: the telescopic end of the hydraulic oil cylinder (11) is in penetrating sliding connection with four corner positions of the lower surface of the die-casting bearing plate (7), and the telescopic end of the hydraulic oil cylinder (11) is fixedly connected with four corner positions of the lower surface of the top supporting frame (4).
4. The die-casting die for the middle plate of the mobile phone as claimed in claim 2, wherein: two be provided with water diversion box (14) between hydraulic pressure oil storehouse (8), and water diversion box (14) lateral wall position has seted up circulating pipe, and has cooled off water diversion pipe (16) and run through fixed connection with water diversion box (14) top, two hydraulic pressure oil storehouse (8) below position is provided with connection base (2).
5. The die-casting die for the middle plate of the mobile phone as claimed in claim 4, wherein: the hydraulic oil storage tank is characterized in that the upper surface of the connecting base (2) is fixedly connected with the bottom of the hydraulic oil storage tank (8) and the bottom of the water distribution tank (14) at the corresponding positions, and the bottom of the connecting base (2) is fixedly connected with the bottom die-casting base (1).
6. The middle plate die-casting die for the mobile phone according to claim 1, wherein: four corner positions of the upper surface of the top support frame (4) and the bottom die-casting base (1) are penetrated through and provided with penetrating limiting holes (5).
7. The die-casting die for the middle plate of the mobile phone according to any one of claims 1 to 6, wherein: the specific working method of the mobile phone middle plate die-casting die is as follows:
the method comprises the following steps:
firstly, connecting a water inlet pipe and a water outlet pipe of a circulating water pump with a water inlet hole and a water outlet hole of a water distribution box (14) through hoses, starting the circulating water pump to circulate water flow in a cold water distribution pipe (16), and cooling a hydraulic oil cylinder (11), a die-casting bearing plate (7) and a die connecting seat (6);
step two, a hydraulic oil cylinder (11) is started, the die connecting seat (6) and the top supporting frame (4) are lifted up through the hydraulic oil cylinder (11), the aluminum plate is placed at four corresponding positions of the die-casting die (15), the die connecting seat (6) is pressed downwards through the hydraulic oil cylinder (11), and die-casting can be carried out through the sub-die (12) and the die-casting die (15);
after the die connecting seat (6) is pressed down, the top supporting frame (4) and the die connecting seat (6) are lifted up through a hydraulic oil cylinder (11), and the die-cast aluminum alloy middle plate is taken down from the position of the die-casting bearing plate (7);
the second method comprises the following steps:
firstly, connecting a water inlet pipe and a water outlet pipe of a circulating water pump with a water inlet hole and a water outlet hole of a water distribution box (14) through hoses, starting the circulating water pump to circulate water flow in a cold water distribution pipe (16), and cooling a hydraulic oil cylinder (11), a die-casting bearing plate (7) and a die connecting seat (6);
pressing the sub-mold (12) of the four-mold arranged in a rectangular shape and a die-casting mold (15) through a hydraulic oil cylinder (11), and injecting casting and medium liquid into the die-casting mold (15) through a pressure injection cylinder (13) to cast the mobile phone middle plate;
and thirdly, after casting is finished, rapidly cooling and forming under the action of a cold water diversion pipe (16), separating the sub-mold (12) from the die-casting mold (15) through a hydraulic oil cylinder (11), and taking out the cast and formed mobile phone middle plate.
CN202211180209.1A 2022-09-27 2022-09-27 Cell-phone medium plate die casting die Pending CN115608948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211180209.1A CN115608948A (en) 2022-09-27 2022-09-27 Cell-phone medium plate die casting die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211180209.1A CN115608948A (en) 2022-09-27 2022-09-27 Cell-phone medium plate die casting die

Publications (1)

Publication Number Publication Date
CN115608948A true CN115608948A (en) 2023-01-17

Family

ID=84861524

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211180209.1A Pending CN115608948A (en) 2022-09-27 2022-09-27 Cell-phone medium plate die casting die

Country Status (1)

Country Link
CN (1) CN115608948A (en)

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