CN218517702U

CN218517702U - Metal casting mould of easy drawing of patterns

Info

Publication number: CN218517702U
Application number: CN202222331969.XU
Authority: CN
Inventors: 郭鑫; 赵星宇
Original assignee: Yizheng Precision Machinery Yixing Co ltd
Current assignee: Yizheng Precision Machinery Yixing Co ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2023-02-24
Anticipated expiration: 2032-09-02

Abstract

The utility model discloses a metal casting mould of easy drawing of patterns, concretely relates to casting mould technical field, comprising a base plate, the equal fixed mounting in bottom plate lower extreme four corners has the landing leg, bottom plate lower extreme middle part fixed mounting has actuating mechanism, the equal fixed mounting in bottom plate upper end four corners has the slide bar, bottom plate upper end middle part fixed mounting has thrust unit, two the mounting hole inner chamber all rotates installs the lead screw, four slide bar surface upper portion and surface lower part common slidable mounting respectively have last mould and lower mould. A metal casting mould of easy drawing of patterns, when foundry goods cooling shaping, open two second fans and two first fans, lower the temperature to mould etc. open actuating mechanism, make the lower mould and go up the mould separation through mechanical connection, when being located four ejector pins of lower part and bottom plate upper end and hugging closely this moment, the foundry goods stops to descend, with foundry goods jack-up, makes foundry goods and lower mould separation, makes things convenient for the drawing of patterns, improves the life of casting mould.

Description

Metal casting mould of easy drawing of patterns

Technical Field

The utility model relates to a casting mould technical field, in particular to metal casting mould of easy drawing of patterns.

Background

The casting is a metal molding object obtained by a casting method, namely molten liquid metal is injected into a casting mold prepared in advance, a blank is obtained after cooling, and then the casting is subjected to subsequent processing means such as polishing and the like to obtain an object with certain characteristics, namely the casting; the castings are mainly used for machine part castings, the proportion of the castings in mechanical products is large, and some castings can be used as tools, vessels and the like which are used by people in daily life.

When a casting mold is used for producing a blank part, molten metal is usually introduced into the casting mold, the part is taken out after the metal is cooled and solidified into a target part, then the mold is taken to produce the next part, in the process, part of the casting mold does not have convenient demolding capacity, in addition, the temperature of the mold rises sharply during casting, heat cannot be rapidly discharged, and the service life of the mold is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a metal casting mould of easy drawing of patterns, can effectively solve the problem in the background art.

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

the utility model provides a metal casting mould of easy drawing of patterns, includes the bottom plate, the equal fixed mounting in bottom plate lower extreme four corners has the landing leg, bottom plate lower extreme middle part fixed mounting has actuating mechanism, the equal fixed mounting in bottom plate upper end four corners has the slide bar, bottom plate upper end middle part fixed mounting has thrust unit, bottom plate upper end left side middle part and upper end right side middle part all seted up with the communicating mounting hole of bottom plate lower extreme, two the mounting hole inner chamber all rotates installs the lead screw, two screw surface upper portion and the screw thread opposite direction of surface lower part, four slide bar surface upper portion and surface lower part common slidable mounting respectively have last mould and lower mould.

Preferably, a second vent groove is formed in the side wall of the upper die, a plurality of second through holes communicated with the inner cavity of the second vent groove are formed in the inner surface of the upper die, a second isolation net is fixedly mounted on the inner surfaces of the second through holes, and the lower part of the left end and the lower part of the right end of the upper die are respectively in threaded connection with the upper parts of the outer surfaces of the two screw rods; the second ventilating groove enables air to flow in the upper die, so that the cooling speed of the die and the casting is accelerated.

Preferably, a pouring opening and a heat discharging opening communicated with an inner cavity of the upper die are respectively and fixedly arranged at the left part and the right part of the upper end of the upper die, second air inlet pipes communicated with an inner cavity of a second vent groove are respectively and fixedly arranged at the middle part and the middle part of the front end and the middle part of the rear end of the upper die, and second fans are respectively and rotatably arranged in the inner cavities of the two second air inlet pipes; the two second fans rotate in opposite directions, so that the flow speed of air in the inner cavity of the second ventilating groove is increased.

Preferably, a first ventilation groove is formed in the side wall of the lower die, a plurality of first through holes communicated with the inner cavity of the first ventilation groove are formed in the inner surface of the lower die, a first isolation net is fixedly mounted on the inner surface of each first through hole, and the upper part of the left end and the upper part of the right end of the lower die are respectively in threaded connection with the lower parts of the outer surfaces of the two screw rods; the first separation net can prevent casting sand and the like from entering the inner cavity of the lower die.

Preferably, four corners of the bottom wall of the inner cavity of the lower die are respectively provided with a sliding hole communicated with the lower end of the lower die, the middle part of the front end and the middle part of the rear end of the lower die are respectively fixedly provided with a first air inlet pipe communicated with the inner cavity of the first ventilating groove, and the inner cavities of the two first air inlet pipes are respectively rotatably provided with a first fan; the slide hole can make the top rod on the upper part slide up and down.

Preferably, the pushing device comprises a top plate, and pulling mechanisms are fixedly mounted at four corners of the lower end of the top plate; the pulling mechanism can pull the lower end of the top plate to be tightly attached to the bottom wall of the inner cavity of the lower die when the lower die is connected with the upper die.

Preferably, the pulling mechanism comprises a circular plate, ejector rods are fixedly mounted in the middle of the upper end and the middle of the lower end of the circular plate, the upper ends of the four ejector rods positioned on the upper part respectively penetrate through the inner cavities of the four sliding holes to extend to the upper part and are fixedly connected with the lower end of the top plate, a spring is fixedly mounted on the outer side of the lower end of the circular plate, and the lower end of the spring is fixedly connected with the upper end of the bottom plate; the spring can pull the lower end of the top plate to be tightly attached to the bottom wall of the lower die inner cavity.

Preferably, the driving mechanism comprises a motor, the upper end of the motor is fixedly connected with the right part of the lower end of the bottom plate, the output end of the motor is fixedly connected with an installation rod through a coupler, the left part and the right part of the outer surface of the installation rod are fixedly provided with first bevel gears, the lower ends of the two screw rods are fixedly provided with second bevel gears, and the outer surfaces of the two second bevel gears are respectively meshed with the outer surfaces of the two first bevel gears; the motor can drive the two screw rods to synchronously rotate simultaneously.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model relates to a pour into molten metal into the lower mould through watering the mouth and go up between the mould inner chamber, then open second fan and two first fans, through second ventilation groove and first ventilation groove inner chamber, cool down the mould, cool down mould and foundry goods, secondly open actuating mechanism and pass through mechanical connection, make the lower mould and last mould keep away from each other, when four ejector pins that are located the lower part are hugged closely with the bottom plate upper end, the foundry goods stops to descend, and the lower mould continues to descend, make foundry goods and lower mould separation, make things convenient for the drawing of patterns, improve casting mold's life.

Drawings

FIG. 1 is a schematic view of the overall structure of a metal casting mold of the present invention, which is easy to demold;

FIG. 2 is a schematic view of the internal structure of the upper mold;

FIG. 3 is a schematic view of the inner structure of the lower mold;

FIG. 4 is a schematic view of the overall structure of the pushing device;

FIG. 5 is a schematic view of the overall structure of the pulling mechanism;

fig. 6 is a schematic view of the overall structure of the drive mechanism.

In the figure: 1. a base plate; 2. a support leg; 3. a drive mechanism; 31. a motor; 32. mounting a rod; 33. a first bevel gear; 4. a slide bar; 5. mounting holes; 6. a screw rod; 61. a second bevel gear; 7. a lower die; 711. a first vent slot; 712. a first through hole; 72. a slide hole; 73. a first air inlet pipe; 74. a first fan; 8. a pushing device; 81. a top plate; 82. a pulling mechanism; 821. a circular plate; 822. a top rod; 823. a spring; 9. an upper die; 911. a second vent groove; 912. a second through hole; 92. a pouring opening; 93. a heat exhaust port; 94. a second air inlet pipe; 95. a second fan.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in figures 1-6, a metal casting mold easy to demold comprises a bottom plate 1, wherein support legs 2 and slide bars 4 are fixed, the support legs 2 are fixedly arranged at four corners of the lower end of the bottom plate 1, a driving mechanism 3 is fixedly arranged in the middle of the lower end of the bottom plate 1 and drives a lower mold 7 and an upper mold 9 to move, the driving mechanism 3 comprises a motor 31 and drives a mounting rod 32 to rotate, the upper end of the motor 31 is fixedly connected with the right part of the lower end of the bottom plate 1, the output end of the motor 31 is fixedly connected with the mounting rod 32 through a coupler and fixes a first bevel gear 33, the left part and the right part of the outer surface of the mounting rod 32 are fixedly provided with a first bevel gear 33 which is mutually meshed with a second bevel gear 61 and drives the screw rods 6 to rotate, the lower ends of the two screw rods 6 are fixedly provided with a second bevel gear 61, two second bevel gear 61 surfaces respectively with two first bevel gear 33 external surface meshes together, make two lead screw 6 rotations of motor 31 simultaneous drive, the equal fixed mounting in bottom plate 1 upper end four corners has slide bar 4, reciprocate lower mould 7 and last mould 9 and lead, 1 upper end middle part fixed mounting of bottom plate has thrust unit 8, separate foundry goods and lower mould 7, 1 upper end left side middle part of bottom plate and upper end right side middle part have all been seted up with the communicating mounting hole 5 of 1 lower extreme of bottom plate, 5 inner chambers of two mounting holes are all rotated and are installed lead screw 6, two lead screw 6 surface upper portions and the screw direction of surface lower part are opposite, lower mould 7 and last mould 9 are kept away from each other or are close to each other, four slide bar 4 surface upper portions and surface lower part respectively common slidable mounting have last mould 9 and lower mould 7.

A second vent groove 911 is formed in the side wall of the upper die 9, so that air can flow in the upper die 9, a plurality of second through holes 912 which are communicated with the inner cavity of the second vent groove 911 are formed in the inner surface of the upper die 9, so that air can enter the inner cavity of the upper die 9, a second separation net is fixedly mounted on the inner surface of each of the plurality of second through holes 912, casting sand and the like are prevented from entering the inner cavity of the upper die 9, the lower part of the left end and the lower part of the right end of the upper die 9 are respectively in threaded connection with the upper parts of the outer surfaces of the two screw rods 6, so that the screw rods 6 can drive the upper die 9 to move, a pouring port 92 and a heat exhaust port 93 which are communicated with the inner cavity of the upper die 9 are respectively fixedly mounted on the left part and the right part of the upper end of the upper die 9, molten metal can enter the inner cavity of the upper die 9 through the pouring port 92, second air inlet pipes 94 which are communicated with the inner cavity of the second vent groove 911 are fixedly mounted on the middle part of the front end and the middle part of the rear end of the upper die 9, so that air inlet can enter the inner cavity of the second vent groove 911, and second air inlet pipes 95 are rotatably mounted in the inner cavities of the two second air inlet pipes 94.

A first ventilation groove 711 is formed in the side wall of the lower die 7 to enable air to flow in the lower die 7, a plurality of first through holes 712 which are communicated with the inner cavity of the first ventilation groove 711 are formed in the inner surface of the lower die 7 to enable air to enter the inner cavity of the lower die 7, a first separation net is fixedly mounted on the inner surface of each of the plurality of first through holes 712 to prevent casting sand and the like from entering the inner cavity of the lower die 7, the upper portions of the left end and the right end of the lower die 7 are respectively in threaded connection with the lower portions of the outer surfaces of the two screw rods 6 to enable the screw rods 6 to drive the lower die 7 to move, slide holes 72 which are communicated with the lower end of the lower die 7 are formed in four corners of the bottom wall of the inner cavity of the lower die 7 to enable the ejector rod 822 positioned on the upper portion to slide up and down, first air inlet pipes 73 which are communicated with the inner cavity of the first ventilation groove 711 are fixedly mounted in the middle portions of the front end and the middle portions of the rear end of the lower die 7 to enable outside air to enter the inner cavity of the first ventilation groove 711, and first fans 74 are rotatably mounted in the inner cavities of the two first air inlet pipes 73.

Pushing device 8 includes roof 81, prevent foundry goods and lower mould 7 synchronous motion, the equal fixed mounting in roof 81 lower extreme four corners has pulling mechanism 82, pulling roof 81 lower extreme and lower mould 7 inner chamber diapire hug closely together when making lower mould 7 be connected with last mould 9, pulling mechanism 82 includes plectane 821, prevent that ejector pin 822 continues the rebound, plectane 821 upper end middle part and the equal fixed mounting in lower extreme middle part have ejector pin 822, it removes to promote roof 81, four ejector pin 822 upper ends that are located upper portion run through four slide opening 72 inner chambers respectively and extend to upper portion and all be in the same place with roof 81 lower extreme fixed connection, plectane 821 lower extreme outside fixed mounting has spring 823, pulling roof 81 lower extreme and lower mould 7 inner chamber diapire hug closely, spring 823 lower extreme and bottom plate 1 upper end fixed connection are in the same place, fix the position of spring 823.

It should be noted that, the utility model relates to a metal casting mould of easy drawing of patterns, pour into fused metal into lower mould 7 and go up between the mould 9 inner chamber through watering mouth 92, the gas that produces at this in-process discharges through heat extraction port 93, at the fashioned in-process of foundry goods cooling, open two second fans 95 and two first fans 74, through being located anterior second fan 95 and first fan 74 with air suction second ventilation groove 911 and first ventilation groove 711 inner chamber respectively, cool down mould and foundry goods, high temperature air is taken out through second fan 95 and first fan 74 that are located the rear portion, in time cool down mould and foundry goods, casting molding with higher speed, treat behind the foundry goods shaping, open actuating mechanism 3 and pass through mechanical connection and under two lead screw 6's effect, make lower mould 7 and last mould 9 keep away from each other, in the in-process that lower mould 7 descends, when being located four ejector pins 822 of lower part and bottom plate 1 upper end and hugging closely, the foundry goods stops descending, and lower mould 7 continues to descend, make the foundry goods and lower mould 7 separate, reach the effect of drawing of fast drawing of patterns.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A metal casting mould easy to demould comprises a bottom plate (1) and is characterized in that: bottom plate (1) lower extreme four corners equal fixed mounting has landing leg (2), bottom plate (1) lower extreme middle part fixed mounting has actuating mechanism (3), bottom plate (1) upper end four corners equal fixed mounting has slide bar (4), bottom plate (1) upper end middle part fixed mounting has thrust unit (8), bottom plate (1) upper end left side middle part and upper end right side middle part all seted up with communicating mounting hole (5), two of bottom plate (1) lower extreme mounting hole (5) inner chamber all rotates and installs lead screw (6), two lead screw (6) surface upper portion and surface lower part screw thread opposite direction, four slide bar (4) surface upper portion and surface lower part common slidable mounting respectively have last mould (9) and lower mould (7).

2. The easy-to-demold metal casting mold of claim 1, wherein: a second vent groove (911) is formed in the side wall of the upper die (9), a plurality of second through holes (912) communicated with the inner cavity of the second vent groove (911) are formed in the inner surface of the upper die (9), a plurality of second isolation nets are fixedly mounted on the inner surfaces of the second through holes (912), and the lower portion of the left end and the lower portion of the right end of the upper die (9) are in threaded connection with the upper portions of the outer surfaces of the two screw rods (6) respectively.

3. The easy-to-demold metal casting mold of claim 2, wherein: go up mould (9) upper end left part and upper end right part respectively fixed mounting with go up mould (9) inner chamber communicating watering mouth (92) and heat extraction mouth (93), go up mould (9) front end middle part and rear end middle part equal fixed mounting have with second ventilating duct (911) inner chamber communicating second air-supply line (94), two second air-supply line (94) inner chamber all rotates and installs second fan (95).

4. The easy-to-demold metal casting mold of claim 1, wherein: a first ventilation groove (711) is formed in the side wall of the lower die (7), a plurality of first through holes (712) communicated with the inner cavity of the first ventilation groove (711) are formed in the inner surface of the lower die (7), a plurality of first isolation nets are fixedly mounted on the inner surface of the first through holes (712), and the upper portion of the left end and the upper portion of the right end of the lower die (7) are in threaded connection with the lower portions of the outer surfaces of the two screw rods (6) respectively.

5. The easy-to-demold metal casting mold of claim 4, wherein: the lower mould (7) inner chamber diapire four corners all seted up with communicating slide opening (72) of lower mould (7) lower extreme, lower mould (7) front end middle part and rear end middle part all fixed mounting have with first ventilation groove (711) inner chamber communicating first air-supply line (73), two first air-supply line (73) inner chamber all rotates and installs first fan (74).

6. An easy-to-demold metal casting mold as defined in claim 5, wherein: the pushing device (8) comprises a top plate (81), and pulling mechanisms (82) are fixedly mounted at four corners of the lower end of the top plate (81).

7. The easy-to-demold metal casting mold of claim 6, wherein: pulling mechanism (82) includes plectane (821), plectane (821) upper end middle part and lower extreme middle part all fixed mounting have ejector pin (822), four that are located upper portion ejector pin (822) upper end runs through four slide opening (72) inner chambers respectively and extends to upper portion and all be in the same place with roof (81) lower extreme fixed connection, plectane (821) lower extreme outside fixed mounting has spring (823), spring (823) lower extreme and bottom plate (1) upper end fixed connection are in the same place.

8. The easy-to-demold metal casting mold of claim 1, wherein: actuating mechanism (3) are including motor (31), motor (31) upper end and bottom plate (1) lower extreme right part fixed connection are in the same place, motor (31) output passes through shaft coupling fixedly connected with installation pole (32), the equal fixed mounting of installation pole (32) surface left part and surface right part has first conical gear (33), two the equal fixed mounting of lead screw (6) lower extreme has second conical gear (61), two second conical gear (61) surface is in the same place with two first conical gear (33) surface meshing respectively.