CN215033357U

CN215033357U - High-strength precoated sand preparation equipment for aluminum alloy low-pressure casting

Info

Publication number: CN215033357U
Application number: CN202121583332.9U
Authority: CN
Inventors: 纪兆爱
Original assignee: Yantai Caiyue Light Alloy Technology Co ltd
Current assignee: Yantai Caiyue Light Alloy Technology Co ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2021-12-07
Anticipated expiration: 2031-07-13

Abstract

The utility model discloses an aluminum alloy low pressure casting is with high strength tectorial membrane sand preparation facilities, including oily hot box, churn and bottom plate, the inside fixed mounting of oily hot box has the electric bar, the inside fixed mounting of oily hot box has temperature sensor, the positive fixed mounting of oily hot box has the control display, the top fixed mounting of churn has the mounting bracket, the top fixed mounting of mounting bracket has agitator motor, agitator motor's output fixed mounting has the puddler, the discharge gate intercommunication of churn has out the sand pipe. The precoated sand manufactured by the arranged equipment has the advantages that the normal-temperature tensile strength can reach 3.0Mpa, the thermal-state tensile strength is 2.0Mpa, the normal-temperature bending strength is 5Mpa, the prepared precoated sand has simple process, convenient operation and high strength, the problem of low strength and easy breakage of common precoated sand is solved, the manufacturing, running and casting use processes are stable and reliable, the normal production can be completely ensured, and the cost is greatly reduced.

Description

High-strength precoated sand preparation equipment for aluminum alloy low-pressure casting

Technical Field

The utility model belongs to the technical field of the casting, concretely relates to aluminum alloy low pressure casting is with high strength tectorial membrane sand preparation equipment.

Background

The material for making the core in the casting production is generally formed by mixing casting sand, a molding sand binder, an auxiliary material and other molding materials according to a certain proportion. The core is mostly surrounded by the high temperature liquid metal in the mold, and the size of the supporting and positioning portion is generally small, so that the core sand should have high strength, air permeability, collapsibility, and collapsibility in addition to the performance of the general molding sand. The core sand is divided into clay core sand, water glass core sand, oil core sand, synthetic fat core sand, resin core sand and the like according to different binders.

The conventional low-pressure casting product generally adopts common precoated sand to manufacture a sand core, the normal-temperature tensile strength of the sand core is 1.5-1.7MPa, the thermal-state tensile strength is 0.8-1.1MPa, the normal-temperature bending strength is 3-3.5MPa, the shape of the water-cooled motor shell sand core is spiral, the wall thickness is thinner by 4.0-5.0mm, and the sand core manufactured by using the common precoated sand is low in strength, easy to break in the manufacturing and running processes, incapable of use, influenced normal production and increased in cost.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing an aluminum alloy low pressure is high strength tectorial membrane sand preparation facilities for casting has solved and has used ordinary tectorial membrane sand to make the psammitolite because intensity is low, and preparation and operation in-process are very easy fracture, and unable the use influences normal production, cost increase's problem.

In order to achieve the above object, the utility model provides a following technical scheme: a high-strength precoated sand preparation device for aluminum alloy low-pressure casting comprises an oil heating tank, a mixing drum and a bottom plate, an electric heating rod is fixedly arranged inside the oil heating box, a temperature sensor is fixedly arranged inside the oil heating box, the front surface of the oil heating box is fixedly provided with a control display, the top of the mixing drum is fixedly provided with a mounting rack, the top of the mounting rack is fixedly provided with a stirring motor, the output end of the stirring motor is fixedly provided with a stirring rod, the discharge hole of the mixing drum is communicated with a sand outlet pipe, vertical plates are fixedly arranged on both sides of the top of the bottom plate, a sand sieving frame is movably arranged at the opposite side of the vertical plate, a screen is fixedly arranged in the sand sieving frame, the front fixed mounting of screening sand frame has the installing frame, the internally mounted of installing frame has the vibrator, the top movable mounting of bottom plate has sand collecting vehicle.

Preferably, the mixing drum is fixedly installed inside the oil heating tank, and one end, far away from the bottom plate, of the vertical plate is fixedly installed on two sides of the bottom of the oil heating tank.

Through adopting above-mentioned technical scheme, the advantage lies in that the oil heat case can heat the churn, and the effect of riser is to supporting equipment.

Preferably, the top of the bottom plate is provided with a sliding chute, the bottom of the sand collecting vehicle is fixedly provided with a sliding wheel, and the specification and the size of the sliding wheel are matched with those of the sliding chute and are corresponding in position.

Through adopting above-mentioned technical scheme, the advantage lies in when sand collecting vehicle fills up, and the cooperation between accessible movable pulley and the spout is with sand collecting vehicle from the top roll-off of bottom plate, the convenient sand collecting vehicle who updates.

Preferably, one side of the oil-heat tank is communicated with an oil inlet pipe, one side of the oil-heat tank, which is communicated with the oil inlet pipe, is communicated with an oil outlet pipe, and the oil inlet pipe is positioned above the oil outlet pipe.

Through adopting above-mentioned technical scheme, the advantage lies in that the accessible advances oil pipe and adds the oil to the inside of oily hot box, and the accessible goes out oil pipe and discharges the inside oil of oily hot box.

Preferably, a valve is installed on the outer side of the sand outlet pipe, and the screen is located right below the sand outlet pipe.

Through adopting above-mentioned technical scheme, the advantage lies in that the accessible opens the valve and makes the inside sand formation of churn fall into the top of screen cloth through going out the sand pipe, conveniently sieves husky.

Preferably, the number of the electric heating rods is four, and the four electric heating rods are symmetrically distributed at four corners of the inner cavity of the oil heating box in a rectangular shape.

Through adopting above-mentioned technical scheme, the advantage lies in that the electric heat stick can heat the inside oil of oil hot box.

Preferably, the input end of the electric heating rod is connected with the output end of the control display through a lead, and the output end of the temperature sensor is connected with the input end of the control display through a lead.

Through adopting above-mentioned technical scheme, the advantage lies in that the control display opens the inside electric bar that heats of oily hot box, heats having of oily hot box inside, heats the churn through the heat transfer effect, and the temperature sensor who sets up in oily hot box in addition can detect the inside oil temperature of oily hot box in real time, conveniently adjusts heating temperature.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the inside of the mixing drum can be heated through the oil heating box, the electric heating rod inside the oil heating box is controlled to be opened through the control display, the electric heating rod can heat the oil inside the oil heating box, the mixing drum is heated through the heat transfer effect, in addition, the oil temperature inside the oil heating box can be detected in real time through the temperature sensor arranged inside the oil heating box, and the heating temperature is conveniently adjusted.

2. Can sieve the sand that the preparation was accomplished through sieve husky frame, screen cloth and the vibrator that set up, only need open the vibrator, the vibrator can drive sieve husky frame and vibrate to sieve the grit that falls into the screen cloth top, sieve simply, screening efficiency is fast.

3. The precoated sand manufactured by the arranged equipment has the advantages that the normal-temperature tensile strength can reach 3.0Mpa, the thermal tensile strength is 2.0Mpa, the normal-temperature bending strength is 5Mpa, the precoated sand is adopted to manufacture the sand core, the manufacturing process, the operation process and the casting process basically have no fracture phenomenon, the yield of the sand core and a casting is greatly improved, the cost is reduced, the manufactured precoated sand is simple in process, convenient to operate and high in strength, the problem that the common precoated sand is low in strength and easy to break is solved, the manufacturing, operation and casting use processes are stable and reliable, the normal production can be completely guaranteed, and the cost is greatly reduced.

Drawings

Fig. 1 is a schematic view of the three-dimensional appearance structure of the present invention;

FIG. 2 is a schematic view of the front view of the present invention;

FIG. 3 is a schematic top sectional view of the oil heat tank of the present invention;

fig. 4 is a schematic sectional view of the mixing drum of the present invention.

In the figure: 1. an oil heating tank; 2. a mixing drum; 3. a base plate; 4. a chute; 5. collecting sand vehicles; 6. a vibrator; 7. screening a sand frame; 8. a vertical plate; 9. controlling the display; 10. installing a frame; 11. screening a screen; 12. a mounting frame; 13. a stirring motor; 14. a sliding wheel; 15. a sand outlet pipe; 16. a valve; 17. an oil inlet pipe; 18. an oil outlet pipe; 19. an electric heating rod; 20. a temperature sensor; 21. a stirring rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-4, the present invention provides a technical solution: a high-strength precoated sand preparation device for aluminum alloy low-pressure casting comprises an oil heating box 1, the mixing drum 2 and the bottom plate 3, the inside fixed mounting of the oil-heat box 1 has the electric bar 19, the inside fixed mounting of the oil-heat box 1 has the temperature sensor 20, the positive fixed mounting of the oil-heat box 1 has the control display 9, the top fixed mounting of the mixing drum 2 has the mounting bracket 12, the top fixed mounting of the mounting bracket 12 has the agitator motor 13, the output fixed mounting of the agitator motor 13 has the puddler 21, the discharge gate intercommunication of the mixing drum 2 has the sand outlet pipe 15, the equal fixed mounting in both sides at bottom plate 3 top has the riser 8, the opposite side movable mounting of riser 8 has the screening sand frame 7, the inside fixed mounting of the screening sand frame 7 has the screen cloth 11, the positive fixed mounting of the screening sand frame 7 has the installing frame 10, the internally mounted of the installing frame 10 has the vibrator 6, the top movable mounting of the bottom plate 3 has the sand collecting vehicle 5.

In the embodiment, the raw sand is firstly poured into the stirring cylinder 2, then the power supply is connected externally, the electric heating rod 19 in the oil heating box 1 is started through the control display 9, the oil in the oil heating box 1 is heated, the stirring cylinder 2 is heated through the heat transfer effect, in addition, the temperature sensor 20 arranged in the oil heating box 1 can detect the oil temperature in the oil heating box 1 in real time, the heating temperature is convenient to adjust, the stirring motor 13 can be started while heating, the output end of the stirring motor 13 drives the stirring rod 21 to rotate, the raw sand is stirred, when the temperature reaches 135 ℃ to 145 ℃, resin and a coupling agent solution are added into the stirring cylinder 2, then the temperature is reduced to 105 ℃ to 115 ℃, then a urotropine solution is added, calcium stearate is added after a period of time, then the temperature is reduced to 70 ℃, the valve 16 is opened after a period of time to begin unloading, then only the vibrator 6 needs to be opened, the vibrator 6 can drive the sand sieving frame 7 to vibrate, so that the sand falling into the top of the screen mesh 11 is sieved, the sieving is simple, the sieving efficiency is high, the sieved sand can fall into the sand collecting vehicle 5 to collect the sand, the coated sand manufactured by the arranged equipment has the normal-temperature tensile strength of 3.0MPa, the thermal-state tensile strength of 2.0MPa and the normal-temperature bending strength of 5MPa, the coated sand manufactured by adopting the coated sand has the advantages of basically no fracture phenomenon in the manufacturing process, the operation process and the casting process, the yield of sand cores and castings is greatly improved, the cost is reduced, the manufactured coated sand has simple process, convenient operation and high strength, the problem of low strength and easy fracture of common coated sand is solved, the manufacturing, the operation and the casting use process are stable and reliable, the normal production can be completely ensured, the cost is greatly reduced.

Example two:

as shown in fig. 1-4, on the basis of the first embodiment, the utility model provides a technical solution: 2 fixed mounting of churn is in the inside of hot case 1 of oil, the one end fixed mounting that bottom plate 3 was kept away from to riser 8 is in the both sides of hot case 1 bottom of oil, spout 4 has been seted up at the top of bottom plate 3, the bottom fixed mounting of collection sand car 5 has movable pulley 14, the specification and dimension looks adaptation of movable pulley 14 and spout 4, and the position is corresponding, one side intercommunication of hot case 1 of oil has into oil pipe 17, one side intercommunication that hot case 1 intercommunication entered oil pipe 17 has out oil pipe 18, it is located out oil pipe 18's top to advance oil pipe 17, valve 16 is installed in the outside of play sand pipe 15, screen cloth 11 is located out sand pipe 15 under.

In this embodiment, oil hot box 1 can heat churn 2, riser 8's effect supports equipment, when album sand car 5 is full, cooperation between accessible movable pulley 14 and the spout 4 will gather sand car 5 from the top roll-off of bottom plate 3, the collection sand car 5 of conveniently renewing, the accessible advances oil pipe 17 and adds oil to the inside of oil hot box 1, the accessible goes out oil pipe 18 and discharges the inside oil of oil hot box 1, the accessible is opened valve 16 and is made the inside one-tenth sand of churn 2 fall into the top of screen cloth 11 through going out sand pipe 15, conveniently sieve sand.

Example three:

as shown in fig. 1-4, on the basis of the first embodiment and the second embodiment, the utility model provides a technical solution: the number of the electric heating rods 19 is four, the four electric heating rods 19 are symmetrically distributed at four corners of the inner cavity of the oil heating box 1 in a rectangular shape, the input end of each electric heating rod 19 is connected with the output end of the control display 9 through a conducting wire, and the output end of the temperature sensor 20 is connected with the input end of the control display 9 through a conducting wire.

In this embodiment, the control display 9 opens the electric bar 19 inside the oil heating box 1, heats the inside of the oil heating box 1, heats the mixing drum 2 through the heat transfer effect, and in addition, the temperature sensor 20 arranged inside the oil heating box 1 can detect the oil temperature inside the oil heating box 1 in real time, so that the heating temperature can be conveniently adjusted.

The utility model discloses a theory of operation and use flow: firstly, raw sand is poured into the interior of a mixing drum 2, then a power supply is connected externally, an electric heating rod 19 in an oil heating box 1 is started through a control display 9, the interior of the oil heating box 1 is heated, the mixing drum 2 is heated through a heat transfer effect, in addition, an oil temperature in the oil heating box 1 can be detected in real time through a temperature sensor 20 arranged in the oil heating box 1, the heating temperature is conveniently adjusted, a mixing motor 13 is started during heating, the output end of the mixing motor 13 drives a mixing rod 21 to rotate, the raw sand is mixed, when the temperature reaches 135 ℃ to 145 ℃, resin and a coupling agent solution are added into the mixing drum 2, then the temperature is reduced to 105 ℃ to 115 ℃, a urotroping solution is added, calcium stearate is added after a period of time, then the temperature is reduced to 70 ℃, the valve 16 is opened after a period of time to begin unloading, then only the vibrator 6 needs to be opened, the vibrator 6 can drive the sand sieving frame 7 to vibrate, so that the sand falling into the top of the screen mesh 11 is sieved, the sieving is simple, the sieving efficiency is high, the sieved sand can fall into the sand collecting vehicle 5 to collect the sand, the coated sand manufactured by the arranged equipment has the normal-temperature tensile strength of 3.0MPa, the thermal-state tensile strength of 2.0MPa and the normal-temperature bending strength of 5MPa, the coated sand manufactured by adopting the coated sand has the advantages of basically no fracture phenomenon in the manufacturing process, the operation process and the casting process, the yield of sand cores and castings is greatly improved, the cost is reduced, the manufactured coated sand has simple process, convenient operation and high strength, the problem of low strength and easy fracture of common coated sand is solved, the manufacturing, the operation and the casting use process are stable and reliable, the normal production can be completely ensured, the cost is greatly reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an aluminum alloy is high strength tectorial membrane sand preparation equipment for low pressure casting, includes oil heating case (1), churn (2) and bottom plate (3), its characterized in that: the oil-heating box is characterized in that an electric heating rod (19) is fixedly mounted inside the oil-heating box (1), a temperature sensor (20) is fixedly mounted inside the oil-heating box (1), a control display (9) is fixedly mounted on the front side of the oil-heating box (1), a mounting frame (12) is fixedly mounted at the top of the stirring drum (2), a stirring motor (13) is fixedly mounted at the top of the mounting frame (12), a stirring rod (21) is fixedly mounted at the output end of the stirring motor (13), a discharge port of the stirring drum (2) is communicated with a sand outlet pipe (15), vertical plates (8) are fixedly mounted on the two sides of the top of the bottom plate (3), sand screening frames (7) are movably mounted on the opposite sides of the vertical plates (8), a screen mesh (11) is fixedly mounted inside the sand screening frames (7), and a mounting frame (10) is fixedly mounted on the front side of the sand screening frames (7), the mounting frame (10) is internally provided with a vibrator (6), and the top of the bottom plate (3) is movably provided with a sand collection vehicle (5).

2. The equipment for preparing the high-strength precoated sand for the low-pressure casting of the aluminum alloy according to claim 1, characterized in that: the mixing drum (2) is fixedly arranged in the oil heating tank (1), and one end of the vertical plate (8) far away from the bottom plate (3) is fixedly arranged on two sides of the bottom of the oil heating tank (1).

3. The equipment for preparing the high-strength precoated sand for the low-pressure casting of the aluminum alloy according to claim 1, characterized in that: the top of the bottom plate (3) is provided with a sliding groove (4), the bottom of the sand collecting vehicle (5) is fixedly provided with a sliding wheel (14), and the specification and the size of the sliding wheel (14) are matched with those of the sliding groove (4) and the positions of the sliding wheel and the sliding groove are corresponding to each other.

4. The equipment for preparing the high-strength precoated sand for the low-pressure casting of the aluminum alloy according to claim 1, characterized in that: one side of the oil-heat box (1) is communicated with an oil inlet pipe (17), one side of the oil-heat box (1) communicated with the oil inlet pipe (17) is communicated with an oil outlet pipe (18), and the oil inlet pipe (17) is positioned above the oil outlet pipe (18).

5. The equipment for preparing the high-strength precoated sand for the low-pressure casting of the aluminum alloy according to claim 1, characterized in that: and a valve (16) is arranged on the outer side of the sand outlet pipe (15), and the screen (11) is positioned right below the sand outlet pipe (15).

6. The equipment for preparing the high-strength precoated sand for the low-pressure casting of the aluminum alloy according to claim 1, characterized in that: four electric heating rods (19) are arranged, and the four electric heating rods (19) are symmetrically distributed at four corners of the inner cavity of the oil heating box (1) in a rectangular shape.

7. The equipment for preparing the high-strength precoated sand for the low-pressure casting of the aluminum alloy according to claim 1, characterized in that: the input end of the electric heating rod (19) is connected with the output end of the control display (9) through a lead, and the output end of the temperature sensor (20) is connected with the input end of the control display (9) through a lead.