CN112247120A - Casting mold embedded with hard alloy and preparation process - Google Patents
Casting mold embedded with hard alloy and preparation process Download PDFInfo
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- CN112247120A CN112247120A CN202011138804.XA CN202011138804A CN112247120A CN 112247120 A CN112247120 A CN 112247120A CN 202011138804 A CN202011138804 A CN 202011138804A CN 112247120 A CN112247120 A CN 112247120A
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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
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
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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
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/04—Handling or stripping castings or ingots
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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
- B22D33/00—Equipment for handling moulds
- B22D33/04—Bringing together or separating moulds
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- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a casting mould embedded with hard alloy, which comprises a casting mechanism and a forming mechanism, wherein the casting mechanism comprises a casting mould body and a mould core; the fixed die is fixedly sleeved on one end of the limiting rod, the movable die is sleeved on the limiting rod and is in sliding connection with the limiting rod, the mounting seat is fixedly sleeved on the other end of the limiting rod and is fixedly connected with the limiting rod, the movable die is positioned between the fixed die and the mounting seat, the cooling box is fixedly sleeved on the mounting seat, and the fixed die and the movable die are positioned in the cooling box; a hydraulic cylinder is arranged on one side of the mounting seat, which is far away from the movable die, the output end of the hydraulic cylinder penetrates through the mounting seat and is connected with a movable connecting plate, the upper end and the lower end of the movable connecting plate are respectively connected with the movable die through movable plates, sliding sleeves are arranged on two sides of the movable connecting plate, and the sliding sleeves are slidably sleeved on the limiting rods; the invention can uniformly cool the die, thereby improving the cooling molding efficiency of the die and having the advantage of automatic ejection after the die is molded.
Description
Technical Field
The invention belongs to the technical field of molds, relates to a casting mold and a process, and particularly relates to a casting mold inlaid with hard alloy and a preparation process.
Background
The casting mold is used for obtaining the structural shape of the part, other easily-formed materials are used for forming the structural shape of the part in advance, then the part is placed into the mold again, a cavity with the same structural size as the part is formed in the sand mold, then the liquid with fluidity is poured into the cavity, and the liquid is cooled and solidified to form the part with the same structural shape as the mold.
The reference CN103862025A discloses a casting mold cooling apparatus and a casting mold cooling method capable of suppressing deterioration of a casting mold and a refrigerant passage, and supplying a refrigerant to the inside of the casting mold at a temperature close to a boiling point, thereby improving cooling efficiency. A casting mold cooling device (1) cools a casting mold (K) by means of a refrigerant circulating in a refrigerant passage (2), and is provided with: an expansion tank (3) for pressurizing the refrigerant so that the refrigerant boils at a preset boiling point (T0); a mold cooling unit (4) for cooling the casting mold by using the heat of vaporization of the boiling refrigerant; a throttle hole part (5) provided upstream of the mold cooling part; a pump (6) for pumping the refrigerant pressurized by the expansion tank to the throttle portion; and a heating device (7) that is provided on the downstream side of the pump and on the upstream side of the orifice portion and heats the refrigerant to a temperature close to the set boiling point (T2).
Among the prior art, after the mould casting shaping, need carry out rapid cooling to upper and lower die body, the cooling device cooling rate of current single aqueduct is slower, and the cooling water temperature difference at aqueduct both ends is great, leads to the inside cooling inhomogeneous to casting mould, produces the problem of influence to the shaping quality of work piece to and the inconvenient drawing of patterns that carries on of current casting mould, and can not carry out the automatic drawing of patterns, and carry out the problem of concentrated collection processing.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, after a mold is cast and molded, the upper mold body and the lower mold body need to be rapidly cooled, the cooling speed of a cooling device of the existing single water guide pipe is low, the temperature difference of cooling water at two ends of the water guide pipe is large, the temperature inside the casting mold is unevenly cooled, and the molding quality of a workpiece is affected, and the existing casting mold is inconvenient to demold, cannot be automatically demolded, and can be intensively collected and processed, and provides a casting mold embedded with hard alloy and a preparation process thereof.
The purpose of the invention can be realized by the following technical scheme:
a casting mould embedded with hard alloy comprises a casting mechanism and a forming mechanism;
the casting mechanism and the forming mechanism are horizontally arranged and are communicated, and a cooling box is sleeved on the forming mechanism;
the casting mechanism comprises a melting tank, an injection molding pipe and a feeding pipe, the melting tank is communicated with a feeding hole of the injection molding pipe through a delivery pump, a discharging hole of the injection molding pipe is communicated with a fixed die of the molding mechanism through the feeding pipe, and the injection molding pipe is arranged on the base;
the forming mechanism comprises a fixed die, a movable die, a limiting rod, a mounting seat, a hydraulic cylinder, a movable plate, a sliding sleeve and a movable connecting plate, the fixed die is fixedly sleeved on one end of the limiting rod, the movable die is sleeved on the limiting rod and is in sliding connection with the limiting rod, the mounting seat is fixedly sleeved on the other end of the limiting rod and is fixedly connected with the limiting rod, the movable die is positioned between the fixed die and the mounting seat, a cooling box is fixedly sleeved on the mounting seat, and the fixed die and the movable die are positioned in the cooling box;
one side of the mounting seat, which is far away from the movable die, is provided with a hydraulic cylinder, the output end of the hydraulic cylinder penetrates through the mounting seat and is connected with a movable connecting plate, the upper end and the lower end of the movable connecting plate are respectively connected with the movable die through movable plates, two sides of the movable connecting plate are provided with sliding sleeves, and the sliding sleeves are sleeved on the limiting rods in a sliding manner.
Preferably, the cooling box includes the top case, the under casing, the top case is located the top of under casing, and top case and under casing communicate each other, be provided with the dispersion subassembly in the top incasement, the dispersion subassembly includes the annular frame, the shunt tubes, the orifice, the screw rod, the annular frame is the loop configuration, and the annular frame sets up on the outside of cover half and movable mould, the ring array is provided with the multiunit shunt tubes on the inner wall of annular frame, and communicate each other with the shunt tubes, the shunt tubes evenly is provided with the multiunit orifice on the lateral wall of cover half and movable mould, evenly be provided with the orifice of multiunit on the inner wall of annular frame.
Preferably, the inboard of annular frame is provided with limit slide, is provided with the mounting groove with screw rod looks adaptation on the inner wall of cooler bin, and limit slide is located the mounting groove to with the cooler bin slip even, the screw rod runs through limit slide to with limit slide threaded connection, the one end of screw rod is connected with the output of motor, the motor is installed on the inner wall of cooler bin.
Preferably, the top in the bottom box is provided with the stock guide, and the stock guide sets up along the bottom box symmetry, and the stock guide slope sets up, and is provided with the carriage between two sets of stock guides to with carriage sliding connection, the front of carriage is provided with takes out the board, the front of bottom box be provided with take out the through-hole of board looks adaptation.
Preferably, the bottom one side of under casing is provided with the pump body, and the input of the pump body advances the pipe through the condensation and is connected with the cold source, and the output of the pump body passes through condensation exit tube and annular frame intercommunication, and the annular frame is the hollow tube, and the condensation exit tube is flexible hose.
Preferably, a cavity is arranged between the fixed die and the movable die, the cavity is positioned in the movable die, and an ejection mechanism is arranged in the movable die.
Preferably, ejection mechanism includes the roof, the spliced pole, the connecting plate, the guide post, the cavity, the elastic component, the roof is located the die cavity, and with the inner wall sliding connection of die cavity, the lateral wall of roof is connected with the one end of spliced pole, the other end of spliced pole extends to in the cavity of movable mould, and with movable mould sliding connection, the other end of spliced pole is installed and is connected at the connecting plate, the both sides of connecting plate and the inner wall sliding connection of cavity, the lateral wall that the spliced pole was kept away from to the connecting plate passes through the inner wall connection of elastic component with the cavity, the cover half is provided with the guide post on being close to the lateral wall of movable mould, the guide post extends to in the cavity of movable.
Preferably, the elastic element comprises a sliding column, a mounting cylinder, a sliding plate and a spring; the installation section of thick bamboo is installed on the inner wall of cavity, and the lateral wall that the spliced pole was kept away from to the one end and the connecting plate of traveller is connected, and the other end of traveller extends to the installation section of thick bamboo to with installation section of thick bamboo sliding connection, the other end and the slide of traveller are connected, the slide with the inner wall sliding connection of installation section of thick bamboo, be provided with the spring on the inner wall of installation section of thick bamboo, the one end and the slide that the installation section of thick bamboo.
A preparation process of a casting die inlaid with hard alloy comprises the following steps:
the first step is as follows: adding a casting material containing hard alloy into a melting tank to enable the casting material to be in a molten state, conveying the casting material in the melting tank into an injection molding pipe through a conveying pump, and then entering a cavity formed between a fixed die and a movable die through a feeding pipe;
the second step is that: the pump body is controlled to work, cold source gas is input into the annular frame along the condensation inlet pipe and the condensation outlet pipe by the pump body, a plurality of groups of spray holes are uniformly arranged on the inner wall of the annular frame, a plurality of groups of shunt pipes are arranged on the annular array on the inner wall of the annular frame and are mutually communicated with the shunt pipes, so that the cold source gas is sprayed out from the spray holes of the annular frame and the spray holes of the shunt pipes to cool the die in the cavity, the die can be uniformly cooled due to the arrangement of the annular frame and the connection with the shunt pipes, the efficiency of cooling and molding the die is improved, the quality of molding the die is improved, the problems that in the prior art, after the die is cast and molded, the upper die body and the lower die body need to be rapidly cooled, the cooling rate of the existing cooling device with a single water guide pipe is slow, and the difference of the, the forming quality of the workpiece is influenced;
after cooling, the motor is controlled to work to drive the screw rod to rotate, so that the annular frame is driven to move through the limiting slide block and is positioned at the end part of the cooling box; then, by controlling the hydraulic cylinder to work, because the output end of the hydraulic cylinder penetrates through the mounting seat and is connected with the movable connecting plate, the upper end and the lower end of the movable connecting plate are respectively connected with the movable mold through the movable plate, and the two sides of the movable connecting plate are provided with sliding sleeves, the movable mold moves towards the direction far away from the fixed mold;
the third step: when the movable mould moves in the direction away from the fixed mould, the connecting plate moves in the direction close to the cavity under the action of the spring of the elastic piece, the connecting plate is connected with the top plate through the connecting column, the inner mould of the cavity is ejected out by the top plate, the ejected mould directly falls into the material guide plates, the material guide plates are obliquely arranged, the bearing frame is arranged between the two groups of material guide plates, the prepared casting mould inlaid with the hard alloy slides into the bearing frame to be collected, and then the casting mould is taken out by pulling the drawing plate.
Compared with the prior art, the invention has the beneficial effects that: adding a casting material containing hard alloy into a melting tank to enable the casting material to be in a molten state, conveying the casting material in the melting tank into an injection molding pipe through a conveying pump, and then entering a cavity formed between a fixed die and a movable die through a feeding pipe;
the pump body is controlled to work, cold source gas is input into the annular frame along the condensation inlet pipe and the condensation outlet pipe by the pump body, a plurality of groups of spray holes are uniformly arranged on the inner wall of the annular frame, a plurality of groups of shunt pipes are arranged on the annular array on the inner wall of the annular frame and are mutually communicated with the shunt pipes, so that the cold source gas is sprayed out from the spray holes of the annular frame and the spray holes of the shunt pipes to cool the die in the cavity, the die can be uniformly cooled due to the arrangement of the annular frame and the connection with the shunt pipes, the efficiency of cooling and molding the die is improved, the quality of molding the die is improved, the problems that in the prior art, after the die is cast and molded, the upper die body and the lower die body need to be rapidly cooled, the cooling rate of the existing cooling device with a single water guide pipe is slow, and the difference of the, the forming quality of the workpiece is influenced;
after cooling, the motor is controlled to work to drive the screw rod to rotate, so that the annular frame is driven to move through the limiting slide block and is positioned at the end part of the cooling box; then, by controlling the hydraulic cylinder to work, because the output end of the hydraulic cylinder penetrates through the mounting seat and is connected with the movable connecting plate, the upper end and the lower end of the movable connecting plate are respectively connected with the movable mold through the movable plate, and the two sides of the movable connecting plate are provided with sliding sleeves, the movable mold moves towards the direction far away from the fixed mold;
when the movable mould moves towards the direction of keeping away from the cover half, make under the effort of the spring of elastic component, the connecting plate moves towards the direction of being close to the die cavity, the connecting plate passes through the spliced pole and connects the roof, make the roof ejecting with the inner mold of die cavity, and ejecting mould directly falls into the stock guide, the stock guide slope sets up, and be provided with the carriage between two sets of stock guides, make the casting mould of inlaying the carbide that is prepared to slide and collect in the carriage, then the pulling take-out board just takes out the casting mould, when separating through cover half and movable mould, can make the mould of die cavity drop automatically and the unloading through ejection mechanism, then, concentrate the collection with fashioned mould through the stock guide.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic perspective view of the connection between the casting mechanism and the forming mechanism according to the present invention.
Fig. 3 is a schematic view of the structure of the cooling tank of the present invention.
Fig. 4 is a schematic perspective view of the inside of the cooling box according to the present invention.
FIG. 5 is a schematic structural diagram of the connection relationship between the fixed mold and the movable mold in the present invention.
Fig. 6 is a schematic structural view of the elastic member of the present invention.
In the figure: 1. a casting mechanism; 2. a molding mechanism; 3. a cooling tank; 4. a base; 5. a melting tank; 6. injection molding a tube; 7. a feed pipe; 8. fixing a mold; 9. moving the mold; 10. a limiting rod; 11. a mounting seat; 12. a hydraulic cylinder; 13. a movable plate; 14. a sliding sleeve; 15. a movable connecting plate; 16. a condensing inlet pipe; 17. a pump body; 18. a condensation pipe; 19. a material guide plate; 20. drawing the plate; 21. an annular frame; 22. a shunt tube; 23. spraying a hole; 24. a screw; 25. a top box; 26. a bottom box; 27. a bearing frame; 28. a cavity; 29. a top plate; 30. connecting columns; 31. a connecting plate; 32. a guide post; 33. a cavity; 34. an elastic member; 35. a traveler; 36. mounting the cylinder; 37. a slide plate; 38. a spring.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a casting mold with a hard alloy insert includes a casting mechanism 1 and a forming mechanism 2;
the casting mechanism 1 and the forming mechanism 2 are horizontally arranged, the casting mechanism 1 is communicated with the forming mechanism 2, and the forming mechanism 2 is sleeved with a cooling box 3;
the casting mechanism 1 comprises a melting tank 5, an injection molding pipe 6 and a feeding pipe 7, wherein the melting tank 5 is communicated with a feeding hole of the injection molding pipe 6 through a delivery pump, a discharging hole of the injection molding pipe 6 is communicated with a fixed die 8 of the molding mechanism 2 through the feeding pipe 7, and the injection molding pipe 6 is arranged on the base 4;
the forming mechanism 2 comprises a fixed die 8, a movable die 9, a limiting rod 10, a mounting seat 11, a hydraulic cylinder 12, a movable plate 13, a sliding sleeve 14 and a movable connecting plate 15, wherein the fixed die 8 is fixedly sleeved on one end of the limiting rod 10, the movable die 9 is sleeved on the limiting rod 10 and is in sliding connection with the limiting rod 10, the mounting seat 11 is fixedly sleeved on the other end of the limiting rod 10 and is fixedly connected with the limiting rod 10, the movable die 9 is positioned between the fixed die 8 and the mounting seat 11, a cooling box 3 is fixedly sleeved on the mounting seat 11, and the fixed die 8 and the movable die 9 are positioned in the cooling box 3;
one side of the mounting seat 11 far away from the movable mold 9 is provided with a hydraulic cylinder 12, the output end of the hydraulic cylinder 12 penetrates through the mounting seat 11 and is connected with a movable connecting plate 15, the upper end and the lower end of the movable connecting plate 15 are respectively connected with the movable mold 9 through a movable plate 13, sliding sleeves 14 are arranged on two sides of the movable connecting plate 15, and the sliding sleeves 14 are slidably sleeved on the limiting rods 10.
The cooling box 3 comprises a top box 25, a bottom box 26, the top box 25 is located above the bottom box 26, the top box 25 and the bottom box 26 are communicated with each other, a dispersing assembly is arranged in the top box 25 and comprises an annular frame 21, a shunt pipe 22, spray holes 23 and a screw 24, the annular frame 21 is of an annular structure, the annular frame 21 is arranged on the outer sides of the fixed die 8 and the movable die 9, a multi-component flow pipe 22 is arranged on the inner wall of the annular frame 21 in an annular array mode and communicated with the shunt pipe 22, multiple groups of spray holes 23 are evenly formed in the side wall, facing the fixed die 8 and the movable die 9, of the shunt pipe 22, and multiple groups of spray holes 23 are evenly formed in the inner wall.
The inboard of annular frame 21 is provided with limit slide, is provided with the mounting groove with 24 looks adaptations of screw rod on the inner wall of cooler bin 3, and limit slide is located the mounting groove to slide with cooler bin 3 and even, screw rod 24 runs through limit slide, and with limit slide threaded connection, the one end of screw rod 24 is connected with the output of motor, and the motor is installed on the inner wall of cooler bin 3.
The top in the bottom box 26 is provided with the stock guide 19, the stock guide 19 is symmetrically arranged along the bottom box 26, the stock guide 19 is obliquely arranged, a bearing frame 27 is arranged between the two groups of stock guide 19 and is slidably connected with the bearing frame 27, the front surface of the bearing frame 27 is provided with a drawing plate 20, and the front surface of the bottom box 26 is provided with a through hole matched with the drawing plate 20.
One side of the bottom box 26 is provided with a pump body 17, the input end of the pump body 17 is connected with a cold source through a condensation inlet pipe 16, the output end of the pump body 17 is communicated with an annular frame 21 through a condensation outlet pipe 18, the annular frame 21 is a hollow pipe, and the condensation outlet pipe 18 is a flexible hose.
A cavity 28 is arranged between the fixed die 8 and the movable die 9, the cavity 28 is positioned in the movable die 9, and an ejection mechanism is arranged in the movable die 9.
The ejection mechanism comprises a top plate 29, a connecting column 30, a connecting plate 31, guide columns 32, a cavity 33 and an elastic piece 34, wherein the top plate 29 is positioned in the cavity 28 and is in sliding connection with the inner wall of the cavity 28, the side wall of the top plate 29 is connected with one end of the connecting column 30, the other end of the connecting column 30 extends into the cavity 33 of the movable mold 9 and is in sliding connection with the movable mold 9, the other end of the connecting column 30 is installed on the connecting plate 31 and is connected with the two sides of the connecting plate 31 and the inner wall of the cavity 33, the side wall of the connecting plate 31, which is far away from the connecting column 30, is connected with the inner wall of the cavity 33 through the elastic piece 34, the guide columns 32 are arranged on the side wall of the fixed mold 8, which is close to the movable mold 9.
The elastic piece 34 comprises a sliding column 35, a mounting cylinder 36, a sliding plate 37 and a spring 38; the installation cylinder 36 is installed on the inner wall of the cavity 33, one end of the sliding column 35 is connected with the side wall of the connecting plate 31 far away from the connecting column 30, the other end of the sliding column 35 extends to the installation cylinder 36 and is connected with the installation cylinder 36 in a sliding mode, the other end of the sliding column 35 is connected with the sliding plate 37, the sliding plate 37 is connected with the inner wall of the installation cylinder 36 in a sliding mode, a spring 38 is arranged on the inner wall of the installation cylinder 36, and one end, far away from the installation cylinder 36, of the spring 38 is connected with the sliding.
A preparation process of a casting die inlaid with hard alloy comprises the following steps:
the first step is as follows: adding a casting material containing hard alloy into a melting tank 5 to enable the casting material to be in a molten state, then conveying the casting material in the melting tank 5 into an injection molding pipe 6 through a conveying pump, and then entering a cavity 28 formed between a fixed die 8 and a movable die 9 through a feeding pipe 7;
the second step is that: the pump body 17 is controlled to work, the pump body 17 inputs cold source gas into the annular frame 21 along the condensation inlet pipe 16 and the condensation outlet pipe 18, because a plurality of groups of spray holes 23 are uniformly arranged on the inner wall of the annular frame 21, and the multi-group flow pipes 22 are arranged on the inner wall of the annular frame 21 in an annular array and are communicated with the shunt pipes 22, the cold source gas is sprayed out from the spray holes 23 of the annular frame 21 and the spray holes 23 of the shunt pipes 22 to cool a mould in a cavity 28, and because the annular frame 21 is arranged and connected with the shunt pipes 22, the mould can be uniformly cooled, the mould cooling forming efficiency is improved, the mould forming quality is improved, the problem that in the prior art, after the mould is cast and formed, the upper mould body and the lower mould body need to be rapidly cooled, the cooling rate of the existing cooling device of a single water guide pipe is slow, and the cooling difference water temperature at, the problem that the temperature inside the casting die is not uniformly reduced and the forming quality of the workpiece is affected is caused;
after cooling, the motor is controlled to work to drive the screw rod 24 to rotate, so that the annular frame 21 is driven to move through the limiting slide block, and the annular frame 21 is positioned at the end part of the cooling box 3; then, by controlling the operation of the hydraulic cylinder 12, because the output end of the hydraulic cylinder 12 passes through the mounting seat 11 and is connected with the movable connecting plate 15, the upper end and the lower end of the movable connecting plate 15 are respectively connected with the movable mold 9 through the movable plate 13, and the two sides of the movable connecting plate 15 are provided with the sliding sleeves 14, the movable mold 9 moves in the direction away from the fixed mold 8;
the third step: when the movable mold 9 moves away from the fixed mold 8, the connecting plate 31 moves towards the direction close to the cavity 28 under the action of the spring 38 of the elastic piece 34, the connecting plate 31 is connected with the top plate 29 through the connecting column 30, so that the top plate 29 ejects out the inner mold of the cavity 28, the ejected mold directly falls into the material guide plates 19, the material guide plates 19 are obliquely arranged, the bearing frame 27 is arranged between the two groups of material guide plates 19, the prepared casting mold embedded with the hard alloy slides into the bearing frame 27 to be collected, and then the pulling plate 20 is pulled to take out the casting mold.
The working principle of the invention is as follows: adding a casting material containing hard alloy into a melting tank 5 to enable the casting material to be in a molten state, then conveying the casting material in the melting tank 5 into an injection molding pipe 6 through a conveying pump, and then entering a cavity 28 formed between a fixed die 8 and a movable die 9 through a feeding pipe 7;
the pump body 17 is controlled to work, the pump body 17 inputs cold source gas into the annular frame 21 along the condensation inlet pipe 16 and the condensation outlet pipe 18, because a plurality of groups of spray holes 23 are uniformly arranged on the inner wall of the annular frame 21, and the multi-group flow pipes 22 are arranged on the inner wall of the annular frame 21 in an annular array and are communicated with the shunt pipes 22, the cold source gas is sprayed out from the spray holes 23 of the annular frame 21 and the spray holes 23 of the shunt pipes 22 to cool a mould in a cavity 28, and because the annular frame 21 is arranged and connected with the shunt pipes 22, the mould can be uniformly cooled, the mould cooling forming efficiency is improved, the mould forming quality is improved, the problem that in the prior art, after the mould is cast and formed, the upper mould body and the lower mould body need to be rapidly cooled, the cooling rate of the existing cooling device of a single water guide pipe is slow, and the cooling difference water temperature at, the problem that the temperature inside the casting die is not uniformly reduced and the forming quality of the workpiece is affected is caused;
after cooling, the motor is controlled to work to drive the screw rod 24 to rotate, so that the annular frame 21 is driven to move through the limiting slide block, and the annular frame 21 is positioned at the end part of the cooling box 3; then, by controlling the operation of the hydraulic cylinder 12, because the output end of the hydraulic cylinder 12 passes through the mounting seat 11 and is connected with the movable connecting plate 15, the upper end and the lower end of the movable connecting plate 15 are respectively connected with the movable mold 9 through the movable plate 13, and the two sides of the movable connecting plate 15 are provided with the sliding sleeves 14, the movable mold 9 moves in the direction away from the fixed mold 8;
when the movable mold 9 moves away from the fixed mold 8, the connecting plate 31 moves towards the direction close to the cavity 28 under the action of the spring 38 of the elastic piece 34, the connecting plate 31 is connected with the top plate 29 through the connecting column 30, the top plate 29 ejects out the inner mold of the cavity 28, the ejected mold directly falls into the material guide plates 19, the material guide plates 19 are obliquely arranged, the bearing frame 27 is arranged between the two groups of material guide plates 19, the prepared casting mold embedded with the hard alloy slides into the bearing frame 27 to be collected, then the pulling plate 20 is pulled to take out the casting mold, when the fixed mold 8 and the movable mold 9 are separated, the mold in the cavity 28 automatically falls off and is discharged through the ejection mechanism, and then the formed mold is collected in a centralized manner through the material guide plates 19.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (9)
1. The utility model provides a casting mould of inlay carbide which characterized in that: comprises a casting mechanism (1) and a forming mechanism (2);
the casting mechanism (1) and the forming mechanism (2) are horizontally arranged, the casting mechanism (1) is communicated with the forming mechanism (2), and the forming mechanism (2) is sleeved with a cooling box (3);
the casting mechanism (1) comprises a melting tank (5), an injection molding pipe (6) and a feeding pipe (7), the melting tank (5) is communicated with a feeding port of the injection molding pipe (6) through a delivery pump, a discharging port of the injection molding pipe (6) is communicated with a fixed die (8) of the forming mechanism (2) through the feeding pipe (7), and the injection molding pipe (6) is arranged on the base (4);
the forming mechanism (2) comprises a fixed die (8), a movable die (9), a limiting rod (10), a mounting seat (11), a hydraulic cylinder (12), a movable plate (13), a sliding sleeve (14) and a movable connecting plate (15), wherein the fixed die (8) is fixedly sleeved on one end of the limiting rod (10), the movable die (9) is sleeved on the limiting rod (10) and is in sliding connection with the limiting rod (10), the mounting seat (11) is fixedly sleeved on the other end of the limiting rod (10) and is fixedly connected with the limiting rod (10), the movable die (9) is positioned between the fixed die (8) and the mounting seat (11), a cooling box (3) is fixedly sleeved on the mounting seat (11), and the fixed die (8) and the movable die (9) are positioned in the cooling box (3);
one side of the mounting seat (11) far away from the movable die (9) is provided with a hydraulic cylinder (12), the output end of the hydraulic cylinder (12) penetrates through the mounting seat (11) and is connected with a movable connecting plate (15), the upper end and the lower end of the movable connecting plate (15) are respectively connected with the movable die (9) through a movable plate (13), sliding sleeves (14) are arranged on two sides of the movable connecting plate (15), and the sliding sleeves (14) are sleeved on the limiting rods (10) in a sliding mode.
2. The casting mould with the hard alloy as claimed in claim 1, wherein the cooling box (3) comprises a top box (25), a bottom box (26), the top box (25) is located above the bottom box (26), the top box (25) and the bottom box (26) are communicated with each other, a dispersion assembly is arranged in the top box (25), the dispersion assembly comprises an annular frame (21), a shunt pipe (22), a spray hole (23) and a screw rod (24), the annular frame (21) is of an annular structure, the annular frame (21) is arranged on the outer sides of the fixed die (8) and the movable die (9), a plurality of groups of shunt tubes (22) are arranged on the inner wall of the annular frame (21) in an annular array, and are communicated with the shunt tubes (22), a plurality of groups of spray holes (23) are uniformly formed in the side walls of the shunt tubes (22) facing the fixed die (8) and the movable die (9), and a plurality of groups of spray holes (23) are uniformly formed in the inner wall of the annular frame (21).
3. The casting mold for the hard alloy-inlaid casting, according to claim 2, characterized in that a limiting slide block is arranged on the inner side of the annular frame (21), an installation groove matched with the screw rod (24) is arranged on the inner wall of the cooling box (3), the limiting slide block is positioned in the installation groove and is connected with the cooling box (3) in a sliding manner, the screw rod (24) penetrates through the limiting slide block and is connected with the limiting slide block in a threaded manner, one end of the screw rod (24) is connected with the output end of a motor, and the motor is arranged on the inner wall of the cooling box (3).
4. The casting mold set with the hard alloy as claimed in claim 2, wherein the guide plates (19) are arranged on the top inside the bottom box (26), the guide plates (19) are symmetrically arranged along the bottom box (26), the guide plates (19) are obliquely arranged, a bearing frame (27) is arranged between the two groups of guide plates (19) and is slidably connected with the bearing frame (27), the drawing plate (20) is arranged on the front surface of the bearing frame (27), and the through holes matched with the drawing plate (20) are arranged on the front surface of the bottom box (26).
5. The casting mold for the hard alloy-inlaid casting, as recited in claim 2, wherein a pump body (17) is disposed on one side of the bottom box (26), an input end of the pump body (17) is connected with a cold source through a condensation inlet pipe (16), an output end of the pump body (17) is communicated with the annular frame (21) through a condensation outlet pipe (18), the annular frame (21) is a hollow pipe, and the condensation outlet pipe (18) is a flexible hose.
6. The casting die for the insert of the hard alloy as claimed in claim 1, wherein a cavity (28) is arranged between the fixed die (8) and the movable die (9), the cavity (28) is arranged in the movable die (9), and an ejection mechanism is arranged in the movable die (9).
7. The casting mold for the insert of the hard alloy according to claim 6, wherein the ejection mechanism comprises a top plate (29), a connecting column (30), a connecting plate (31), a guide post (32), a cavity (33) and an elastic member (34), the top plate (29) is positioned in the cavity (28) and is slidably connected with the inner wall of the cavity (28), the side wall of the top plate (29) is connected with one end of the connecting column (30), the other end of the connecting column (30) extends into the cavity (33) of the movable mold (9) and is slidably connected with the movable mold (9), the other end of the connecting column (30) is installed on the connecting plate (31) and is connected with the inner wall of the cavity (33), the side wall of the connecting plate (31) far away from the connecting column (30) is connected with the inner wall of the cavity (33) through the elastic member (34), the guide post (32) is arranged on the side wall of the fixed mold (8) close to the movable mold (9, the guide post (32) extends into the cavity (33) of the movable die (9) and is abutted against the connecting plate (31), and the guide post (32) is connected with the movable die (9) in a sliding manner.
8. The casting mold as defined in claim 7, wherein the elastic member (34) comprises a strut (35), a mounting cylinder (36), a slide plate (37), and a spring (38); install on the inner wall of cavity (33) installation section of thick bamboo (36), the lateral wall that spliced pole (30) were kept away from with connecting plate (31) to the one end of traveller (35) is connected, the other end of traveller (35) extends to installation section of thick bamboo (36), and with installation section of thick bamboo (36) sliding connection, the other end and slide (37) of traveller (35) are connected, the inner wall sliding connection of slide (37) and installation section of thick bamboo (36), be provided with spring (38) on the inner wall of installation section of thick bamboo (36), the one end that installation section of thick bamboo (36) was kept away from in spring (38) is connected with slide (37).
9. A process for the preparation of a cemented carbide-tipped casting mold as defined in any one of claims 1 to 8, comprising the steps of:
the first step is as follows: adding a casting material containing hard alloy into a melting tank (5) to enable the casting material to be in a molten state, then conveying the casting material in the melting tank (5) into an injection molding pipe (6) through a conveying pump, and then entering a cavity (28) formed between a fixed die (8) and a movable die (9) through a feeding pipe (7);
the second step is that: the pump body (17) is controlled to work, cold source gas is input into the annular frame (21) by the pump body (17) along the condensation inlet pipe (16) and the condensation outlet pipe (18), and as a plurality of groups of spray holes (23) are uniformly formed in the inner wall of the annular frame (21), and a plurality of groups of shunt pipes (22) are arranged in an annular array on the inner wall of the annular frame (21) and are communicated with the shunt pipes (22), the cold source gas is sprayed out from the spray holes (23) of the annular frame (21) and the spray holes (23) of the shunt pipes (22) to cool a mold in the cavity (28);
after cooling, the motor is controlled to work to drive the screw rod (24) to rotate, so that the annular frame (21) is driven to move through the limiting slide block, and the annular frame (21) is positioned at the end part of the cooling box (3); then, by controlling the hydraulic cylinder (12) to work, as the output end of the hydraulic cylinder (12) penetrates through the mounting seat (11) and is connected with the movable connecting plate (15), the upper end and the lower end of the movable connecting plate (15) are respectively connected with the movable mold (9) through the movable plate (13), and sliding sleeves (14) are arranged on two sides of the movable connecting plate (15), the movable mold (9) moves towards the direction far away from the fixed mold (8);
the third step: when the movable die (9) moves in the direction far away from the fixed die (8), under the action force of a spring (38) of the elastic piece (34), the connecting plate (31) moves in the direction close to the cavity (28), the connecting plate (31) is connected with the top plate (29) through the connecting column (30), the top plate (29) ejects out an inner die of the cavity (28), the ejected die directly falls into the material guide plates (19), the material guide plates (19) are obliquely arranged, the bearing frame (27) is arranged between the two groups of material guide plates (19), the prepared casting die inlaid with the hard alloy slides into the bearing frame (27) to be collected, and then the casting die is taken out by pulling the drawing plate (20).
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| CN112247120B (en) | 2021-09-03 |
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