CN110076310B - Production process of metal button - Google Patents
Production process of metal button Download PDFInfo
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- CN110076310B CN110076310B CN201910474223.4A CN201910474223A CN110076310B CN 110076310 B CN110076310 B CN 110076310B CN 201910474223 A CN201910474223 A CN 201910474223A CN 110076310 B CN110076310 B CN 110076310B
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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
- B22D17/14—Machines with evacuated die cavity
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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
- B22D17/16—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure specially adapted for casting slide fasteners or elements therefor
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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
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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
- B22D17/32—Controlling equipment
Abstract
The invention discloses a production process of a metal buckle, belonging to the technical field of metal buckle production, and the key points of the technical scheme are as follows: comprising the following steps, S1: melting; s2: closing the mold and vacuumizing; s3: injecting; s4: unloading; s5: stabilizing the pressure; s6: blanking; s7: removing oil; s8: cleaning; s8: and (5) storing. The content of the air in the forming cavity is reduced through vacuumizing, the generation of bubbles is reduced, and meanwhile, when the solution moves to the vertical pipe, the bubbles formed in the forming cavity can be driven to move to the vertical pipe, so that the bubbles in the forming cavity are further reduced, and the influence on the quality of a casting is reduced.
Description
Technical Field
The invention belongs to the production technology of metal buttons, and particularly relates to a production process of a metal button.
Background
Die casting is a metal casting process and is characterized in that a die cavity is used for applying high pressure to molten metal. The die is typically machined from a stronger alloy, a process somewhat analogous to die casting. Most die cast parts are iron-free, such as zinc, copper, aluminum, magnesium, lead, tin, and lead-tin alloys and their alloys. Depending on the type of die casting, either a cold chamber die casting machine or a hot chamber die casting machine may be used. The casting equipment and the die are high in manufacturing cost, so that the die casting process is generally only used for manufacturing a large number of products in batches, and a horizontal hot chamber die casting machine is also generally used for producing metal buttons made of zinc alloy.
But when die-casting, when letting in the shaping intracavity with zinc solution, can't be with the whole discharge of shaping intracavity air, the shaping intracavity can form a large amount of bubbles this moment, and the bubble can be attached to the shaping intracavity inner wall, can lead to the foundry goods surface and the inside bubble that appears this moment, influences the quality of foundry goods.
Therefore, a new technical solution is needed to solve the above problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a production process of a metal button, which reduces bubbles on the surface and in the casting in the production process and ensures that the quality of the produced casting is not easily influenced.
In order to achieve the purpose, the invention provides the following technical scheme: a production process of a metal button comprises the following steps,
s1: melting, namely melting a zinc ingot into liquid, placing the liquid in a melting furnace of a die casting machine, and immersing an opening of an injection tube;
s2: closing the die and vacuumizing, closing the movable die and the fixed die of the die casting machine, and vacuumizing the space in the molding cavity between the movable die and the fixed die;
s3: injecting, namely injecting the solution in a smelting furnace of a die casting machine into a forming cavity, and enabling the solution to flow into a vertical pipe of a defoaming pipe connected with a fixed die;
s4: discharging, namely sealing the opening of the horizontal pipe of the defoaming pipe, and refluxing the solution in the vertical pipe into the smelting furnace;
s5: stabilizing the pressure, pressurizing the solution in the molding cavity, and then maintaining the pressure until the solution in the molding cavity is cooled;
s6: blanking, wherein the fixed die is separated from the movable die, and a force towards the movable die is applied to the formed casting so that the casting is separated from the fixed die along with the movement of the movable die;
s7: deoiling, namely placing the casting into a deoiling tank for surface deoiling treatment, and adding a CY-1003B environment-friendly cleaning agent into the deoiling tank;
s8: cleaning, namely placing the casting in an ultrasonic cleaning agent for cleaning;
s8: and (4) storing, namely storing the casting in a dry environment.
Through adopting above-mentioned technical scheme, reduced the content of the air in the shaping intracavity through the evacuation, reduce the production of bubble, when solution removes to vertical intraductal simultaneously, can drive the bubble that forms in the shaping intracavity and remove to vertical intraductal, further make the bubble of shaping intracavity reduce to reduce the influence that the quality of foundry goods received.
The invention is further configured to: s1, the die casting machine comprises a base, a movable die, a fixed die, a smelting furnace, an injection tube and an injection mechanism, wherein the fixed die is fixedly connected with the base, the movable die is connected with the base in a sliding manner, the fixed die and the movable die can be pressed, one end of the injection tube is connected with an inner cavity of the fixed die, the other end of the injection tube is arranged in the smelting furnace cavity, the injection mechanism comprises an injection hydraulic cylinder fixed with the base and an injection block for driving a solution to flow, the injection block can be inserted into the injection tube, the side wall of the injection block is attached to the inner wall of the injection tube, the fixed die is connected with a defoaming mechanism for reducing bubbles, the defoaming mechanism comprises a defoaming tube communicated with the inner cavity of the fixed die and a vacuum pump for vacuumizing a molding cavity, one end of the defoaming tube is connected with the fixed die, the other end of the defoaming tube is connected with the vacuum pump, one end of the defoaming tube, one end of the injection pipe close to the fixed die is connected with a second valve for opening and closing the injection pipe, the base is connected with a control mechanism for controlling the operation of the injection mechanism and the defoaming mechanism, the control mechanism comprises a controller and a vacuum degree detector for measuring vacuum degree, and the controller is respectively and electrically connected with the vacuum degree detector, the injection hydraulic cylinder, the first valve, the second valve and the vacuum pump.
By adopting the technical scheme, the vacuum pump is utilized to reduce the air content in the forming cavity, so that the probability of generating bubbles in the forming cavity is reduced, and the quality of a casting is improved.
The invention is further configured to: the defoaming pipe comprises a horizontal pipe and a vertical pipe, the horizontal pipe and the vertical pipe are communicated with each other, and one end, far away from the horizontal pipe, of the vertical pipe is higher than the upper end face of the inner cavity of the fixed die.
Through adopting above-mentioned technical scheme, utilize the flow direction that is the vertical intraductal solution of vertical setting to restrict, make solution can fill the one-tenth die cavity, make the foundry goods difficult production in process of production scrap.
The invention is further configured to: the horizontal pipe is connected with an unloading mechanism for opening and closing an opening of the horizontal pipe, the unloading mechanism comprises an unloading block and an unloading hydraulic cylinder, the unloading block is arranged in the horizontal pipe and slides, the unloading hydraulic cylinder drives the unloading block to slide, a discharging hole facing the smelting furnace penetrates through the position, close to the vertical pipe, of the side wall of the lower end of the horizontal pipe, the unloading block is in a right-angled triangle with an inclined surface facing the upper end of the fixed die, the unloading block can seal the discharging hole, the horizontal pipe is communicated with the inner cavity of the vertical pipe at the moment, the inner cavity of the horizontal pipe can be sealed by the unloading block.
Through adopting above-mentioned technical scheme, after solution got into the horizontal pipe, start the pneumatic cylinder of unloading and make the piece of unloading move towards the cover half, utilize the piece of unloading to seal the opening of horizontal pipe, the solution in the shaping intracavity can not produce the removal this moment, and the solution in the vertical intraductal discharge opening of passing through flows into the smelting furnace, can not block up vertical pipe.
The invention is further configured to: the high-temperature-resistant liquid level sensor is arranged in the vertical pipe and used for detecting the height of a solution in the vertical pipe, the detection end of the high-temperature-resistant liquid level sensor faces the discharge hole, the high-temperature-resistant liquid level sensor is electrically connected with the controller, and the discharge hydraulic cylinder is electrically connected with the controller.
By adopting the technical scheme, the height of the solution in the vertical pipe is detected by using the high-temperature-resistant liquid level sensor, so that the height of the solution in the vertical pipe can be limited, the amount of the solution in the vertical pipe can not be excessive, the generation of waste residues of the solution due to temperature change is reduced, and the waste of materials is reduced.
The invention is further configured to: the machine base is connected with a photoelectric sensor for detecting the movement of a piston rod of the injection hydraulic cylinder, the transmitting end and the receiving end of the photoelectric sensor are respectively positioned on two sides of the injection hydraulic cylinder, the piston rod of the injection hydraulic cylinder is fixedly connected with an identification block, the identification block can pass through the space between the transmitting end and the receiving end of the photoelectric sensor, and the photoelectric sensor is electrically connected with the controller.
Through adopting above-mentioned technical scheme, utilize photoelectric sensor to confirm to press and penetrate the piece and whether seal the opening of penetrating the pipe to when the evacuation of moulding cavity, solution can not remove towards the moulding cavity, makes the process of evacuation remain stable.
The invention is further configured to: the end face of the discharging block close to the discharging hydraulic cylinder is fixedly connected with a connecting block, the connecting block is fixedly connected with a piston rod of the discharging hydraulic cylinder, a connecting hole communicated with an inner cavity of the vertical pipe penetrates through the upper end of the connecting block, and a solution in the vertical pipe can move downwards through the connecting hole.
Through adopting above-mentioned technical scheme, utilize the connecting block to make solution can not direct with the piston rod contact of the pneumatic cylinder of unloading to can not exert an influence to the use of the pneumatic cylinder of unloading.
The invention is further configured to: and a high-temperature-resistant pressure sensor for detecting the pressure of the solution in the forming cavity is connected between the connecting block and the piston rod of the discharging hydraulic cylinder, and the high-temperature-resistant pressure sensor is electrically connected with the controller.
Through adopting above-mentioned technical scheme, utilize high temperature resistant pressure sensor to detect the pressure of the solution in the shaping intracavity to make the pressure of solution too big and lead to the horizontal pipe to break.
The invention is further configured to: and a lead is spirally wound on the outer wall of the vertical pipe and is connected with a storage battery.
By adopting the technical scheme, the vertical pipe is continuously heated by utilizing the electrified lead, so that the vertical pipe always maintains a higher temperature, the temperature of the solution cannot be changed violently, and the generation of waste residues is reduced.
In conclusion, the invention has the following beneficial effects:
1. the vacuum pump is utilized to reduce the content of air in the molding cavity, so that the probability of generating bubbles is reduced during casting, and the quality of the casting is improved;
2. when the solution flows into the vertical pipe from the forming cavity, partial bubbles in the forming cavity are taken out from the forming cavity, so that the quantity of the bubbles in the forming cavity is reduced, and the quality of a casting is not easily influenced;
3. through setting up discharge mechanism, make the solution in the vertical pipe can directly flow into the smelting furnace to make solution can not solidify in the vertical pipe, can not exert an influence to defoaming mechanism's use.
Drawings
FIG. 1 is a perspective view of the present embodiment;
FIG. 2 is a schematic structural view of the furnace for showing the interior of the furnace according to the present embodiment;
fig. 3 is a schematic diagram for showing the discharging mechanism in the embodiment.
Description of the drawings: 1. die casting machine; 11. moving the mold; 12. fixing a mold; 13. a furnace; 14. injecting a pipe; 141. a first valve; 15. forming a hydraulic cylinder; 16. a machine base; 2. an injection mechanism; 21. an injection hydraulic cylinder; 22. injecting a block; 23. identifying a block; 3. a defoaming mechanism; 31. a defoaming pipe; 311. a horizontal tube; 3111. a discharge opening; 312. a vertical tube; 32. a vacuum pump; 33. a second valve; 41. A controller; 42. a vacuum degree detector; 43. a high temperature resistant liquid level sensor; 44. a photosensor; 45. a high temperature resistant pressure sensor; 5. a discharge mechanism; 51. unloading the material block; 52. a discharging hydraulic cylinder; 53. connecting blocks; 531. connecting holes; 6. a wire; 61. and (4) a storage battery.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
A production process of a metal button comprises the following steps:
s1: melting, namely melting a zinc ingot into liquid, placing the liquid in a melting furnace 13 of the die casting machine 1 and immersing an opening of the injection tube 14;
s2: closing the die and vacuumizing, closing the movable die 11 and the fixed die 12 of the die casting machine 1, and vacuumizing the space in the molding cavity between the movable die 11 and the fixed die 12;
s3: injecting, namely injecting the solution in the melting furnace 13 of the die casting machine 1 into the forming cavity and enabling the solution to flow into the vertical pipe 312 of the defoaming pipe 31 connected with the fixed die 12;
s4: discharging, namely closing the opening of the horizontal pipe 311 of the defoaming pipe 31, and enabling the solution in the vertical pipe 312 to flow back to the smelting furnace 13;
s5: stabilizing the pressure, pressurizing the solution in the molding cavity, and then maintaining the pressure until the solution in the molding cavity is cooled;
s6: blanking, wherein the fixed die 12 is separated from the movable die 11, and a force towards the movable die 11 is applied to the formed casting so that the casting is separated from the fixed die 12 along with the movement of the movable die 11;
s7: deoiling, namely placing the casting into a deoiling tank for surface deoiling treatment, and adding a CY-1003B environment-friendly cleaning agent into the deoiling tank;
s8: cleaning, namely placing the casting in an ultrasonic cleaning agent for cleaning;
s8: and (4) storing, namely storing the casting in a dry environment.
As shown in fig. 1 and 2, the die casting machine 1 includes a base 16, a movable die 11 slidably connected to the base 16, a fixed die 12 fixed to the base 16 by bolts, a melting furnace 13 for containing a solution, an injection tube 14 for communicating the melting furnace 13 with an inner cavity of the fixed die 12, and an injection mechanism 2 for driving the solution to move. The upper end of the machine base 16 is fixed with a forming hydraulic cylinder 15 for driving the movable die 11 to move by using bolts, and a piston rod of the forming hydraulic cylinder 15 and the end surface of the movable die 11 far away from the fixed die 12 are fixed by using bolts. The melting furnace 13 is fixed at the upper end of the base 16 by using bolts, one end of the injection tube 14 is arranged in the melting furnace 13, the opening of the end of the injection tube arranged in the melting furnace 13 is upward, the other end of the injection tube is fixed at the end, far away from the moving die 11, of the fixed die 12 by using bolts, the inner cavity of the injection tube is communicated with the inner cavity of the fixed die 12, the opening of the injection tube in the melting furnace 13 is lower than the opening connected with the fixed die 12, the opening of the injection tube close to the fixed die 12 is connected with a first valve 141 for. The injection mechanism 2 includes an injection hydraulic cylinder 21 fixed to the base 16 using a bolt and an injection block 22 for driving the solution to flow, and the injection block 22 is fixed to a piston rod of the injection hydraulic cylinder 21 using a bolt, is inserted into the injection tube 14, and has a side wall abutting against the inner wall of the injection tube 14. The fixed mold 12 is also connected with a defoaming mechanism 3 for reducing the generation of bubbles during the casting process, and the defoaming mechanism 3 comprises a vacuum pump 32 fixed to the base 16 by using bolts and a defoaming pipe 31 for connecting the vacuum pump 32 with the fixed mold 12. One end of the defoaming pipe 31 is fixed at one end of the fixed mold 12 far away from the movable mold 11 by using a bolt, the defoaming pipe is communicated with the inner cavity of the fixed mold 12 and is close to the upper end of the inner cavity of the fixed mold 12, one end of the defoaming pipe close to the vacuum pump 32 is connected with a second valve 33 for opening and closing a flow channel, and the second valve 33 is a high-temperature resistant electromagnetic valve. The base 16 is connected with a control mechanism for controlling the work of each mechanism, the control mechanism comprises a controller 41 and a vacuum degree detector 42 for measuring the vacuum degree, the vacuum degree detector 42 is arranged at the position of the defoaming pipe 31 close to the vacuum pump 32, and the controller 41 is electrically connected with the vacuum degree detector 42, the injection hydraulic cylinder 21, the first valve 141, the second valve 33 and the vacuum pump 32 respectively. When die casting is performed, the molding hydraulic cylinder 15 is opened to bring the movable mold 11 into contact with the fixed mold 12, the controller 41 is then started, the controller 41 controls the first valve 141 to be closed, the second valve 33 to be opened, the vacuum pump 32 is then controlled to be actuated to lower the air pressure in the molding chamber formed between the movable mold 11 and the fixed mold 12, when the air pressure drops to the threshold set by the vacuum degree detector 42, the vacuum degree detector 42 feeds back a signal to the controller 41, and the controller 41 controls the shot hydraulic cylinder 21 to drop, so that the shot block 22 closes one side opening of the shot tube 14, and then the first valve 141 is controlled to be opened, the second valve 33 is controlled to be closed, then the piston of the injection hydraulic cylinder 21 is controlled to continue to extend, the solution is pressed into the forming cavity for casting, and air in the forming cavity is less during the casting process, so that the generation probability of bubbles in the forming cavity is further reduced, and the quality of the casting is improved.
As shown in fig. 3, the solution flows into the defoaming pipe 31 during the casting process, so that the molding cavity cannot be filled, resulting in rejection of the molded casting. Therefore, the defoaming pipe 31 comprises a horizontal pipe 311 arranged horizontally and a vertical pipe 312 arranged vertically, the inner cavity of the horizontal pipe 311 and the inner cavity of the vertical pipe 312 are communicated, and one end of the vertical pipe 312 far away from the horizontal pipe 311 is higher than the upper end surface of the forming cavity. Utilize the flow direction of the vertical intraductal 312 interior solution that is vertical setting to restrict, make solution can fill up the molding cavity, make the foundry goods difficult production in process of production scrap, solution when flowing into vertical intraductal 312 simultaneously, can bring the bubble in the molding cavity into vertical intraductal 312 simultaneously, reduced the quantity of the interior bubble of molding cavity, make the quality of foundry goods difficult for receiving the influence.
As shown in fig. 3, since the solution is gradually solidified by cooling when the casting is formed in the forming cavity, the solidified solution in the vertical pipe 312 is difficult to be taken out, and it is troublesome to separate the vacuum pump 32 from the defoaming pipe 31 to clean the vertical pipe 312. Therefore, the horizontal pipe 311 is connected with a discharging mechanism 5 for opening and closing an opening at one end of the horizontal pipe 311 far away from the fixed die 12, and the discharging mechanism 5 comprises a discharging block 51 arranged in the horizontal pipe 311 in a sliding mode and a discharging hydraulic cylinder 52 for driving the discharging block 51 to slide. The cylinder body of the discharging hydraulic cylinder 52 is connected with the base 16 by using a bolt, and the piston rod of the discharging hydraulic cylinder is fixed with the discharging block 51 by using a bolt. The discharging block 51 is in a right-angled triangle, the inclined surface of the discharging block faces the upper end of the fixed die 12, the discharging block penetrates through the lower end of the side wall of the vertical pipe 312 and is arranged in the horizontal pipe 311, a discharging hole 3111 for solution to pass through penetrates through the position, close to the vertical pipe 312, of the side wall of the lower end of the horizontal pipe 311, the discharging hole 3111 faces the upper end opening of the smelting furnace 13, the discharging block 51 can seal the discharging hole 3111, the horizontal pipe 311 is communicated with the vertical pipe 312 at the moment, and the inner cavity of the horizontal pipe 311. After the solution enters the horizontal pipe 311, the discharging hydraulic cylinder 52 is actuated to move the discharging block 51 toward the fixed mold 12, the opening of the horizontal pipe 311 is closed by the discharging block 51, and the solution in the molding chamber does not move, and the solution in the vertical pipe 312 flows into the melting furnace 13 through the discharging hole 3111 without blocking the vertical pipe 312.
As shown in fig. 3, since the vertical rod is a metal tube, the height of the solution in the vertical tube 312 can be directly seen by naked eyes, a high temperature resistant liquid level sensor 43 for detecting the height of the solution in the inner cavity of the vertical tube 312 is arranged in the vertical tube 312, the detection end of the high temperature resistant liquid level sensor 43 faces the discharge hole 3111, and the detection end and the discharge hydraulic cylinder 52 are electrically connected to the controller 41. When the height of the solution in the vertical pipe 312 reaches the threshold value set by the high temperature resistant liquid level sensor 43, the high temperature resistant liquid level sensor 43 feeds back a signal to the controller 41, and the controller 41 controls the piston rod of the discharging hydraulic cylinder 52 to move, so that the discharging block 51 closes the opening of the horizontal pipe 311. At this time, the height of the solution in the vertical pipe 312 is detected by using the high temperature resistant liquid level sensor 43, so that the height of the solution in the vertical pipe 312 can be limited, the amount of the solution in the vertical pipe 312 is not excessive, the generation of waste residues of the solution due to temperature change is reduced, and the waste of materials is reduced.
As shown in fig. 1, when the molding cavity is evacuated, the opening of the injection tube 14 in the melting furnace 13 needs to be closed by the injection block 22, and the opening of the injection tube 14 is covered by the solution and cannot be directly observed, so the base 16 is connected with a photoelectric sensor 44 for detecting the position of the piston rod of the injection hydraulic cylinder 21, the photoelectric sensor 44 is electrically connected with the controller 41, and the generating end and the receiving end of the photoelectric sensor are fixedly connected with the base 16 by bolts and are respectively located on two sides of the injection hydraulic cylinder 21. The piston rod side wall of the shot cylinder 21 is bolted with an identification block 23, and the identification block 23 can pass between the emitting end and the receiving end of the photosensor 44, while the shot block 22 closes one end opening of the shot tube 14. The photo-sensor 44 is used to determine whether the shot block 22 closes the opening of the shot tube 14 so that the solution does not move toward the mold cavity when the mold cavity is evacuated, stabilizing the evacuation process.
As shown in fig. 3, since the solution in the vertical pipe 312 flows into the melting furnace 13 through the discharge hole 3111 when the discharging block 51 moves toward the fixed mold 12, the solution directly contacts the piston rod of the discharging cylinder 52 and adheres to the side wall of the piston rod of the discharging cylinder 52, which affects the use of the discharging cylinder 52. Therefore, the end face of the discharging block 51 close to the discharging hydraulic cylinder 52 is welded with a rectangular connecting block 53, the upper end of the connecting block 53 penetrates through a connecting hole 531, and the solution can flow through the connecting hole 531. The use of the connecting block 53 prevents the solution from directly contacting the piston rod of the discharge cylinder 52 and thus does not affect the use of the discharge cylinder 52.
As shown in fig. 3, since pressure is applied to the solution in the molding chamber when the discharging block 51 moves toward the fixed mold 12, the solution may cause the horizontal pipe 311 to be broken when the applied pressure is excessive. Therefore, the high-temperature-resistant pressure sensor 45 is connected between the connecting block 53 and the piston rod of the discharging hydraulic cylinder 52 by using a bolt, and the high-temperature-resistant pressure sensor 45 is electrically connected with the controller 41. The pressure of the solution in the molding chamber is detected by the high temperature resistant pressure sensor 45, so that the pressure of the solution is not excessive and the horizontal tube 311 is not broken.
As shown in fig. 1, since the temperature of the vertical pipe 312 is relatively close to room temperature, the temperature of the solution entering the vertical pipe 312 is decreased, and the temperature of the solution after entering the melting furnace 13 is increased, and the drastic temperature change may cause the solution to generate waste slag, which results in waste of raw materials. Therefore, the outer wall of the vertical pipe 312 is spirally wound with the lead 6, and the lead 6 is connected with the storage battery 61. The vertical pipe 312 is continuously heated by the electrified lead 6, so that the vertical pipe 312 always maintains a higher temperature, the temperature of the solution is not changed violently, and the generation of waste residues is reduced.
The working principle is as follows:
when die casting is carried out, the forming hydraulic cylinder 15 is opened to enable the movable die 11 to be abutted with the fixed die 12, then the controller 41 is started, the controller 41 controls the first valve 141 to be closed, the second valve 33 is opened, then the vacuum pump 32 is controlled to be started to enable the air pressure in a forming cavity formed between the movable die 11 and the fixed die 12 to be reduced, when the air pressure is reduced to a threshold value set by the vacuum degree detector 42, the vacuum degree detector 42 feeds back a signal to the controller 41, the controller 41 controls the injection hydraulic cylinder 21 to be lowered, when the transmitting end and the receiving end of the photoelectric sensor 44 are blocked by the identification block 23, the signal is fed back to the controller 41, the controller 41 controls the first valve 141 to be opened, the second valve 33 is closed, then the piston of the injection hydraulic cylinder 21 is controlled to continue to extend, the solution is pressed into the forming cavity for casting, the solution enters the vertical pipe 312 under the action of pressure, when the page height of the solution in the, the high temperature resistant pressure sensor 45 feeds back a signal to the controller 41, the controller 41 controls the injection hydraulic cylinder 21 to stop and controls the piston rod of the unloading hydraulic cylinder 52 to move, so that the unloading block 51 moves towards the fixed mold 12 to apply pressure to the solution, when the pressure detected by the high temperature resistant pressure sensor 45 reaches a set threshold value, the controller 41 feeds back a signal to the controller 41 to stop the unloading hydraulic cylinder 52, at the moment, the pressure is maintained for a period of time to gradually cool and mold the unloading block in the molding cavity, the molding hydraulic cylinder 15 is started to separate the fixed mold 11 from the fixed mold 12 after molding, and the piston rod of the unloading hydraulic cylinder 52 is controlled to stretch to gradually apply a force far away from the unloading block 51 during separation, so that the casting is separated from the fixed.
The specific embodiments are only for explaining the present invention, and the present invention is not limited thereto, and those skilled in the art can make modifications without inventive contribution to the present embodiments as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (9)
1. The production process of the metal button is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
s1: melting, namely melting a zinc ingot into liquid, placing the liquid in a melting furnace (13) of a die casting machine (1) and immersing an opening of an injection tube (14);
s2: closing the dies and vacuumizing, closing the movable die (11) and the fixed die (12) of the die casting machine (1), and vacuumizing the space in a forming cavity between the movable die (11) and the fixed die (12);
s3: injecting, namely injecting the solution in a smelting furnace (13) of the die casting machine (1) into a forming cavity, and enabling the solution to flow into a vertical pipe (312) of a defoaming pipe (31) connected with the fixed die (12);
s4: discharging, namely closing the opening of the horizontal pipe (311) of the defoaming pipe (31) and enabling the solution in the vertical pipe (312) to flow back to the smelting furnace (13);
s5: stabilizing the pressure, pressurizing the solution in the molding cavity, and then maintaining the pressure until the solution in the molding cavity is cooled;
s6: blanking, wherein the fixed die (12) is separated from the movable die (11), and a force towards the movable die (11) is applied to the molded casting to enable the casting to be separated from the fixed die (12) along with the movement of the movable die (11);
s7: deoiling, namely placing the casting into a deoiling tank for surface deoiling treatment, and adding a CY-1003B environment-friendly cleaning agent into the deoiling tank;
s8: cleaning, namely placing the casting in an ultrasonic cleaning agent for cleaning;
s8: and (4) storing, namely storing the casting in a dry environment.
2. The process for producing a metal button according to claim 1, wherein: s1 die casting machine (1) including frame (16), movable mould (11), cover half (12), smelting pot (13), press and penetrate pipe (14) and press and penetrate mechanism (2), cover half (12) and frame (16) fixed connection, movable mould (11) and frame (16) slide and are connected, but cover half (12) and movable mould (11) pressfitting, the one end and the cover half (12) inner chamber of pressing and penetrating pipe (14) are connected, the other end of pressing and penetrating pipe (14) is arranged in smelting pot (13) intracavity, press and penetrate mechanism (2) including pressing and penetrate pneumatic cylinder (21) and the injection piece (22) that drive solution flows with frame (16) is fixed, it fits with pressing and penetrating pipe (14) inner wall to insert injection piece (22) and its lateral wall in pressing and penetrating pipe (14), cover half (12) are connected with defoaming mechanism (3) that reduce the bubble, defoaming mechanism (3) include that the forming tube (31) that communicates with cover half (12) inner chamber and the vacuum pump that the defoaming chamber was taken out the vacuum are connected with (32) One end of the defoaming pipe (31) is connected with the fixed die (12), the other end of the defoaming pipe (31) is connected with the vacuum pump (32), one end of the defoaming pipe (31) close to the vacuum pump (32) is connected with a first valve (141) for opening and closing the defoaming pipe (31), one end of the injection pipe (14) close to the fixed die (12) is connected with a second valve (33) for opening and closing the injection pipe (14), the machine base (16) is connected with a control mechanism for controlling the injection mechanism (2) and the defoaming mechanism (3) to work, the control mechanism comprises a controller (41) and a vacuum degree detector (42) for measuring the vacuum degree, and the controller (41) is electrically connected with the vacuum degree detector (42), the injection hydraulic cylinder (21), the first valve (141), the second valve (33) and the vacuum pump (32) respectively.
3. The process for producing a metal button according to claim 2, wherein: the defoaming tube (31) comprises a horizontal tube (311) and a vertical tube (312), the horizontal tube (311) and the vertical tube (312) are communicated with each other, and one end, far away from the horizontal tube (311), of the vertical tube (312) is higher than the upper end face of the inner cavity of the fixed die (12).
4. The process for producing a metal button according to claim 3, wherein: the horizontal pipe (311) is connected with a discharging mechanism (5) for opening and closing an opening of the horizontal pipe, the discharging mechanism (5) comprises a discharging block (51) arranged in the horizontal pipe (311) in a sliding mode and a discharging hydraulic cylinder (52) for driving the discharging block (51) to slide, a discharging hole (3111) facing the smelting furnace (13) penetrates through the position, close to the vertical pipe (312), of the side wall of the lower end of the horizontal pipe (311), the discharging block (51) is in a right-angled triangle with an inclined surface facing the upper end of the fixed die (12), the discharging block (51) can seal the discharging hole (3111), the horizontal pipe (311) is communicated with the inner cavity of the vertical pipe (312), the discharging block (51) can seal the inner cavity of the horizontal pipe (311), and the discharging hole (3111) is opened at the moment.
5. The process for producing a metal button according to claim 4, wherein: be provided with in vertical pipe (312) and detect high temperature resistant level sensor (43) of solution height in vertical pipe (312), the detection end of high temperature resistant level sensor (43) is towards discharge opening (3111), high temperature resistant level sensor (43) are connected with controller (41) electricity, discharge hydraulic cylinder (52) are connected with controller (41) electricity.
6. The process for producing a metal button according to claim 2, wherein: the machine base (16) is connected with a photoelectric sensor (44) for detecting the movement of a piston rod of the injection hydraulic cylinder (21), the transmitting end and the receiving end of the photoelectric sensor (44) are respectively positioned at two sides of the injection hydraulic cylinder (21), the piston rod of the injection hydraulic cylinder (21) is fixedly connected with an identification block (23), the identification block (23) can pass through the position between the transmitting end and the receiving end of the photoelectric sensor (44), and the photoelectric sensor (44) is electrically connected with the controller (41).
7. The process for producing a metal button according to claim 4, wherein: the end face, close to the discharging hydraulic cylinder (52), of the discharging block (51) is fixedly connected with a connecting block (53), the connecting block (53) is fixedly connected with a piston rod of the discharging hydraulic cylinder (52), a connecting hole (531) communicated with the inner cavity of the vertical pipe (312) penetrates through the upper end of the connecting block (53), and a solution in the vertical pipe (312) can move downwards through the connecting hole (531).
8. The process for producing a metal button according to claim 7, wherein: and a high-temperature-resistant pressure sensor (45) for detecting the pressure of the solution in the forming cavity is connected between the connecting block (53) and the piston rod of the discharging hydraulic cylinder (52), and the high-temperature-resistant pressure sensor (45) is electrically connected with the controller (41).
9. The process for producing a metal button according to claim 2, wherein: the outer wall of the vertical pipe (312) is spirally wound with a lead (6), and the lead (6) is connected with a storage battery (61).
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| CN116148296B (en) * | 2023-04-19 | 2023-08-25 | 中国科学院过程工程研究所 | Detection method of automatic XRF detection integrated device for metal-containing solid materials |
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| JPH07232258A (en) * | 1994-02-23 | 1995-09-05 | Ryobi Ltd | Casting method using electromagnetic pump |
| CN102284691B (en) * | 2010-06-18 | 2015-08-12 | 株式会社东芝 | Vacuum casting device |
| JP6065673B2 (en) * | 2013-03-15 | 2017-01-25 | 宇部興産機械株式会社 | Mold venting device |
| CN104668504B (en) * | 2013-11-30 | 2017-06-16 | 中国科学院金属研究所 | Non-crystaline amorphous metal component casting equipment and technique |
| CN206779417U (en) * | 2017-05-26 | 2017-12-22 | 刘衍芳 | A kind of die casting machine workpiece ejecting mechanism |
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