CN211438037U

CN211438037U - Magnesium alloy gooseneck device

Info

Publication number: CN211438037U
Application number: CN201922071691.5U
Authority: CN
Inventors: 胡建; 陈建
Original assignee: Changyin Auto Parts Nantong Co ltd
Current assignee: Changyin Auto Parts Nantong Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-09-08
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses a magnesium alloy gooseneck device relates to die casting machine spare part technical field. The inner chamber material that aims at solving ordinary gooseneck device is mostly high melting point metal material, it easily takes place chemical reaction with the molten metal under the environment of high temperature and frequent friction, the phenomenon of corrosion assimilation appears even, and then greatly influenced the shaping quality of metal casting, and be unfavorable for the long-time steady operation's of gooseneck device technical problem, its technical scheme main points set up ceramic sleeve, the characteristics that wettability through ceramic sleeve is extremely low and corrosion resistance is high, make its inside wall and blevile of push's outer fringe direct contact, and then effectively reduced the frame and take place chemical reaction with the molten metal in frequent friction environment, reached and improved equipment corrosion resisting property by a wide margin, effectively ensure the long-time stable effect of operation of equipment.

Description

Magnesium alloy gooseneck device

Technical Field

The utility model relates to a die casting machine spare part technical field, more specifically say, it relates to a magnesium alloy gooseneck device.

Background

At present, a die casting machine is a mechanical device which injects molten metal into a preset die cavity under the action of pressure, and opens a die casting into a solid metal casting with a specific shape after the metal liquid is cooled and formed. The gooseneck device is a hollow cavity which is settled in the molten metal, and a pushing device of the die casting machine can be introduced into an inner cavity of the gooseneck device so as to inject the molten metal into an inner cavity of the die.

The prior chinese patent publication No. CN104275464A provides a material injection device for a die casting machine, which comprises a charging barrel and a plunger reciprocally movable in an inner cavity of the charging barrel. The feed cylinder includes straight portion and gooseneck portion, passes through rake transitional coupling between the two, and the minimum of rake is less than the discharge gate minimum of gooseneck portion. The plunger comprises a plug head and a second plug head which are fixedly connected through a plug rod. A non-pressure chamber for storing molten metal is formed between the plunger and the straight portion, a pressure chamber is formed between the gooseneck portion and the straight portion, and the molten metal is pushed by the plunger to change through the pressure of the inner cavity of the charging barrel so as to be pushed into the inner cavity of the mold.

However, the inner cavity of the conventional gooseneck device is mostly made of a high-melting-point metal material, and the common gooseneck device is easily subjected to chemical reaction with molten metal in a high-temperature and frequent-friction environment, and even is corroded and assimilated, so that the forming quality of metal castings is greatly influenced, and the gooseneck device is not favorable for long-time stable operation, and therefore the improvement is needed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a magnesium alloy gooseneck device, it has improve equipment corrosion resisting property by a wide margin, effectively ensures the advantage of the long-time operating stability of equipment.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a magnesium alloy gooseneck device comprises a rack, wherein a material chamber is arranged in an inner cavity of the rack along the length direction of the rack, a material conveying pipe is arranged at the top of the material chamber, a material discharging through pipe is arranged at one end, far away from the material chamber, of the material conveying pipe, the material discharging through pipe penetrates through the rack and extends to the outside of the rack, the material chamber comprises a first through chamber and a second through chamber, the inner diameter of the first through chamber is larger than that of the second through chamber, and a ceramic sleeve is arranged on the inner side wall of the first through chamber; the conveying pipe comprises a longitudinal pipe and a horizontal pipe, and one ends of the horizontal pipe and the longitudinal pipe, which are far away from each other, are respectively communicated with the discharging through pipe and the second through chamber.

By adopting the technical scheme, the ceramic sleeve has extremely low wettability and extremely high corrosion resistance, and the inner side wall of the ceramic sleeve is directly contacted with the outer edge of the pushing device, so that the phenomenon that the rack and molten metal liquid generate chemical reaction in a frequent friction environment is effectively reduced. The molten metal liquid gushes into the second through chamber under the dual action of the thrust of the pushing device and the vacuum pressure of the inner cavity of the frame, and is transmitted through the material conveying pipe and is ejected out from the notch of the discharge through pipe.

Further, a closed plate used for limiting the position of the ceramic sleeve is vertically arranged at one end of the rack in the length direction and at the first through chamber.

Through adopting above-mentioned technical scheme, when ceramic sleeve inlayed and put at first logical indoor chamber, its length direction's one end was near the second logical chamber end wall that the internal diameter is less, when the closure plate surface was hugged closely with frame and ceramic sleeve length direction's end wall, ceramic sleeve length direction's both ends all were blocked, and then made self tightly block in first logical indoor chamber to ceramic sleeve's not hard up phenomenon smooth partially in first logical indoor chamber has effectively been reduced.

Further, the surface of the closing plate facing the direction of the rack is vertically provided with a fixing piece, and the rack and the end wall of the ceramic sleeve in the length direction are jointly provided with an embedded groove for facilitating the insertion of the fixing piece.

Through adopting above-mentioned technical scheme, the preferred large-size double-screw bolt of mounting, its diameter that is close to the closing plate direction is greater than the other end diameter, and then can make mounting interference joint in embedded groove inner chamber to make the closing plate fixed laminating in frame length direction's end wall department. Meanwhile, in actual installation, an operator can wind a plurality of magnesium alloy metal wires on the outer edge of the fixing piece to enhance the connection tightness between the fixing piece and the embedded groove.

Furthermore, a buffering through pipe is arranged between the first through chamber and the second through chamber.

Through adopting above-mentioned technical scheme, the pipe diameter that the buffering siphunculus is close to first logical room direction is greater than its pipe diameter that is close to the second logical room direction, and it can supply the current diameter of molten metal liquid through reducing self to increase the pressure when molten metal liquid passes through, and then effectively ensured blevile of push and penetrated the work efficiency that molten metal liquid got into the mould inner chamber through the material room.

Furthermore, a plurality of pressure discharge through holes penetrate through the outer side wall of the rack along the thickness direction of the outer side wall of the rack, and the pressure discharge through holes are communicated with the inner cavity of the second through chamber.

Through adopting above-mentioned technical scheme, the internal diameter of row's pressure through-hole is very narrow, and it makes second logical room and frame outside have slight atmospheric pressure to exchange when blevile of push promotes the molten metal liquid, and then has effectively reduced the phenomenon that the second logical indoor chamber appears pressure intensity too high and makes the difficult conveying pipeline that gets into of molten metal liquid to the circulation efficiency of molten metal liquid in the frame inner chamber has effectively been ensured.

Furthermore, a convolution groove is arranged between the longitudinal pipe and the horizontal pipe.

By adopting the technical scheme, the joint of the longitudinal pipe and the horizontal pipe is narrower and is in a right-angle shape, and when molten metal is pushed by high pressure to quickly prop into the horizontal pipe from the longitudinal pipe, the molten metal is extremely easy to block on the inner side wall of the horizontal pipe; the rotary groove provides a high-energy metal molten solution rotary space at the moment, and the metal molten solution is accumulated at the rotary groove to reduce the phenomena of instantaneous energy loss and backflow descending during the rising of the subsequent molten metal solution.

Furthermore, the lateral wall of ejection of compact siphunculus keeping away from the horizontal pipe direction is provided with the intercommunication pipe perpendicularly, the intercommunication pipe runs through the frame and communicates with each other with the frame outside, the internal diameter of intercommunication pipe is less than the internal diameter of horizontal pipe.

Through adopting above-mentioned technical scheme, the axis that leads to the connecting pipe is on same water flat line with the axis of horizontal pipe, and the internal diameter that leads to the connecting pipe is less than the internal diameter of horizontal pipe, and the inner chamber that leads to the connecting pipe and ejection of compact siphunculus communicates with each other, and its one end of keeping away from ejection of compact siphunculus direction runs through the frame and extends to the frame outside to alleviate all molten metal liquid and all from ejection of compact siphunculus internal pressure when outwards spouting, and then speed and stability when having ensured molten metal liquid outwards to jet out.

Further, the frame lateral wall is provided with predetermines the groove, predetermine the groove and surround the periphery setting of material siphunculus.

Through adopting above-mentioned technical scheme, predetermine the groove and be used for the butt joint molten metal liquid mould that will get into, and then so that the whole comparatively stable butt joint mould notch of frame to guarantee the accuracy that the molten metal liquid jets into the mould inner chamber.

To sum up, the utility model discloses following beneficial effect has:

1. the ceramic sleeve is arranged, and the inner side wall of the ceramic sleeve is in direct contact with the outer edge of the material pushing device through the characteristics of extremely low wettability and extremely high corrosion resistance of the ceramic sleeve, so that the phenomenon that the frame is in chemical reaction with molten metal in a frequent friction environment is effectively reduced.

2. The buffer through pipe and the exhaust through hole are arranged to ensure the passing speed and the passing efficiency of the molten metal in the inner cavity of the material chamber; the rotary groove and the communicating pipe are arranged to further ensure the stability of the molten metal liquid ejected from the discharging through pipe.

Drawings

FIG. 1 is a schematic view of a magnesium alloy gooseneck device according to an embodiment;

FIG. 2 is a schematic longitudinal sectional view showing the positional relationship among the material chamber, the material conveying pipe and the material discharge pipe in the embodiment;

FIG. 3 is a schematic diagram of a transverse cross section for showing the positional relationship between the vent holes and the frame in the embodiment.

In the figure: 1. a frame; 101. a material chamber; 1011. a first through chamber; 1012. a second through chamber; 1013. buffering a through pipe; 102. an embedded groove is formed; 103. pressure discharge through holes; 104. presetting a groove; 2. a ceramic sleeve; 3. a closing plate; 301. a fixing member; 4. a delivery pipe; 401. a longitudinal tube; 402. a horizontal tube; 403. a convolution tank; 5. a discharge through pipe; 501. the connecting pipe is connected.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

a magnesium alloy gooseneck device, which is shown in figure 1, comprises a frame 1. The frame 1 is made of magnesium alloy, the weight is light, and the heat resistance, the self strength and the shock resistance of the frame are far higher than those of common metal materials, so that the stability of the frame in long-time operation in molten metal is guaranteed.

Referring to fig. 2, a chamber 101 is provided in the inner cavity of the housing 1 along the length direction thereof, and the chamber 101 is used for molten metal to enter the inner cavity of the housing 1 and includes a first through chamber 1011 and a second through chamber 1012. The first through chamber 1011 and the second through chamber 1012 are respectively located at both ends of the housing 1 in the longitudinal direction, and the first through chamber 1011 has a larger inner diameter than the second through chamber 1012.

Referring to fig. 2, the ceramic sleeve 2 is seamlessly embedded in the inner side wall of the first through chamber 1011, the ceramic sleeve 2 has extremely low wettability and extremely high corrosion resistance, and the inner side wall of the ceramic sleeve 2 is in direct contact with the outer edge of the pushing device, so that the phenomenon that the frame 1 and molten metal liquid generate chemical reaction in a frequent friction environment is effectively reduced.

Referring to fig. 2, a buffer tube 1013 is commonly disposed between the first through chamber 1011 and the second through chamber 1012, and the buffer tube 1013 is made of magnesium alloy and is integrally formed in the inner cavity of the housing 1. The tube diameter of the buffer tube 1013 in the direction close to the first through chamber 1011 is larger than that in the direction close to the second through chamber 1012, which increases the pressure of the molten metal when passing through by reducing the passing diameter, thereby ensuring the efficiency of the material pushing device (not shown) for injecting the molten metal into the inner cavity of the die through the material chamber 101.

Referring to fig. 1 and 2, a closing plate 3 is vertically disposed at one end of the machine frame 1 in the length direction and located in the first through chamber 1011, the closing plate 3 is made of magnesium alloy, and the outer surface of the closing plate is tightly attached to the machine frame 1 and the end wall of the ceramic sleeve 2 in the length direction, so as to reduce the phenomenon that the ceramic sleeve 2 is loosened in the inner cavity of the first through chamber 1011.

Referring to fig. 2, a fixing member 301 is integrally formed on a surface of the closing plate 3 facing the frame 1, and the fixing member 301 is preferably a large-sized stud. The frame 1 and the ceramic sleeve 2 are provided with an inner caulking groove 102 together near one end of the closing plate 3, and the fixing piece 301 can be in interference clamping in the inner cavity of the inner caulking groove 102, so that the closing plate 3 is fixedly attached to the end wall of the frame 1 in the length direction.

Referring to fig. 2, the top of the second through chamber 1012 is connected to a feed pipe 4, one end of the feed pipe 4 away from the second through chamber 1012 is connected to a discharge pipe 5, and the discharge pipe 5 penetrates through the rack 1 and extends to the outside of the rack 1. The material pushing device frequently rubs in the first through chamber 1011 to push the molten metal, and the molten metal rushes into the second through chamber 1012 under the dual actions of the pushing force and the vacuum pressure of the inner cavity of the rack 1 and is transmitted through the material conveying pipe 4 and is ejected outwards from the notch of the discharging through pipe 5.

Referring to fig. 1 and 3, a plurality of pressure discharge through holes 103 are formed in the outer side wall of the frame 1 along the thickness direction thereof, and in this embodiment, the number of the pressure discharge through holes 103 is two. The inner diameter of the pressure discharge through hole 103 is very narrow, and when the pushing device pushes the molten metal, the second through chamber 1012 and the outside of the rack 1 have slight air pressure exchange, so that the phenomenon that the molten metal is difficult to enter the material conveying pipe 4 due to overhigh pressure in the second through chamber 1012 is effectively reduced.

Referring to FIG. 2, the feed delivery pipe 4 comprises a longitudinal pipe 401 and a horizontal pipe 402, and the longitudinal pipe 401 is perpendicular to the top wall of the second through-chamber 1012 and communicates with the inner cavity of the second through-chamber 1012 so that the molten metal is introduced into the longitudinal pipe 401 from the second through-chamber 1012. The horizontal pipe 402 is vertically welded at one end of the longitudinal pipe 401 far away from the direction of the second through chamber 1012, the inner cavities of the two are communicated, one end of the horizontal pipe 402 far away from the direction of the longitudinal pipe 401 is vertically welded at the outer side wall of the discharge through pipe 5, the inner cavities of the two are also communicated, and molten metal enters the horizontal pipe 402 from the longitudinal pipe 401 and then is converged at the discharge through pipe 5, and is ejected outwards from the notch of the discharge through pipe 5 under the action of pressure in the pipe.

Referring to fig. 2, a rotary groove 403 is commonly disposed at a joint where the longitudinal pipe 401 and the horizontal pipe 402 meet each other, and the rotary groove 403 is used for buffering and retaining molten metal under high-pressure transmission, so as to reduce the phenomenon that the molten metal instantaneously flows back and descends after being impacted when the molten metal is pushed into the horizontal pipe 402 from the longitudinal pipe 401 in a state of high kinetic energy.

Referring to fig. 2, a through pipe 501 is vertically welded at one end of the discharge through pipe 5 away from the horizontal pipe 402, the central axis of the through pipe 501 and the central axis of the horizontal pipe 402 are on the same horizontal line, and the inner diameter of the through pipe 501 is smaller than the inner diameter of the horizontal pipe 402. The inner cavity of leading to connecting pipe 501 and ejection of compact siphunculus 5 communicates with each other, and its one end of keeping away from ejection of compact siphunculus 5 direction runs through frame 1 and extends to frame 1 outside to alleviate the internal pressure of ejection of compact siphunculus 5 inner chamber, ensure that molten metal liquid is stable orderly outwards jets out from ejection of compact siphunculus 5's notch.

Referring to fig. 1, frame 1 lateral wall is seted up one and is the predetermined groove 104 of rectangle, and predetermined groove 104 sets up around the periphery of ejection of compact siphunculus 5, and it is used for docking the mould that molten metal liquid will get into, and then so that the whole comparatively stable butt joint mould notch of frame 1 to guarantee the accuracy that molten metal liquid jets into the mould inner chamber.

The working principle is as follows:

the pushing device is communicated with the first through chamber 1011 and reciprocates in the inner cavity of the first through chamber, and the inner side wall of the ceramic sleeve 2 is directly contacted with the outer edge of the pushing device, so that the phenomenon that the rack 1 and molten metal generate chemical reaction in a frequent friction environment is effectively reduced.

The molten metal gushes into the second through chamber 1012 under the dual action of the thrust of the pushing device and the vacuum pressure of the inner cavity of the frame 1, and is transmitted through the feed delivery pipe 4 and is ejected out from the notch of the discharge through pipe 5.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a magnesium alloy gooseneck device, includes frame (1), frame (1) inner chamber is provided with material room (101) along its length direction, material room (101) top is provided with conveying pipeline (4), the one end that material room (101) direction was kept away from in conveying pipeline (4) is provided with ejection of compact siphunculus (5), ejection of compact siphunculus (5) run through frame (1) and extend to frame (1) outside, its characterized in that: the material chamber (101) comprises a first through chamber (1011) and a second through chamber (1012), the inner diameter of the first through chamber (1011) is larger than that of the second through chamber (1012), and a ceramic sleeve (2) is arranged on the inner side wall of the first through chamber (1011); the conveying pipe (4) comprises a longitudinal pipe (401) and a horizontal pipe (402), and one ends, far away from each other, of the horizontal pipe (402) and the longitudinal pipe (401) are respectively communicated with the discharging through pipe (5) and the second through chamber (1012).

2. The magnesium alloy gooseneck device of claim 1, wherein: and a closing plate (3) used for limiting the position of the ceramic sleeve (2) is vertically arranged at one end of the machine frame (1) in the length direction and positioned at the first through chamber (1011).

3. The magnesium alloy gooseneck device of claim 2, wherein: the surface of the closing plate (3) towards the direction of the rack (1) is vertically provided with a fixing piece (301), and the end walls of the rack (1) and the ceramic sleeve (2) in the length direction are jointly provided with an inner embedded groove (102) convenient for the insertion of the fixing piece (301).

4. The magnesium alloy gooseneck device of claim 1, wherein: a buffer through pipe (1013) is arranged between the first through chamber (1011) and the second through chamber (1012).

5. The magnesium alloy gooseneck device of claim 4, wherein: the outer side wall of the rack (1) is provided with a plurality of pressure discharge through holes (103) in a penetrating mode along the thickness direction of the outer side wall, and the pressure discharge through holes (103) are communicated with the inner cavity of the second through chamber (1012).

6. The magnesium alloy gooseneck device of claim 1, wherein: a convolution groove (403) is arranged between the longitudinal pipe (401) and the horizontal pipe (402).

7. The magnesium alloy gooseneck device of claim 6, wherein: the lateral wall that horizontal pipe (402) direction was kept away from in ejection of compact siphunculus (5) is provided with leads to connecting pipe (501) perpendicularly, lead to connecting pipe (501) run through frame (1) and communicate with each other with frame (1) outside, the internal diameter of leading to connecting pipe (501) is less than the internal diameter of horizontal pipe (402).

8. The magnesium alloy gooseneck device of claim 7, wherein: the outer side wall of the rack (1) is provided with a preset groove (104), and the preset groove (104) is arranged around the periphery of the discharge through pipe (5).