CN115319032A - Steel shot landfill shell mould casting production facility - Google Patents

Abstract

The invention discloses steel shot landfill shell mold casting production equipment which comprises a box body and a supply device, wherein the supply device comprises a first supply unit and a second supply unit, the first supply unit is used for forming a precoated sand shell mold to be poured and placing the precoated sand shell mold in the box body, and the second supply unit is used for uniformly filling steel shots into the box body and between the precoated sand shell mold and the box body so as to fix and support the outer side wall of the precoated sand shell mold. The steel shot filling shell type casting production equipment greatly reduces the production cost, is suitable for batch production, enlarges the range of production product varieties and has high production efficiency.

Description

Steel shot landfill shell mould casting production facility

Technical Field

The invention relates to the technical field of casting processes, in particular to steel shot landfill shell type casting production equipment.

Background

Casting is a method in which liquid metal is cast into a casting cavity with a shape adapted to a part, and after the liquid metal is cooled and solidified, the part or a blank is obtained. The shell mold casting is a casting produced by using a thin shell mold, and has the advantages of convenient production, high efficiency, small sand consumption, high dimensional precision and the like.

The casting process in the prior art comprises an iron film coated sand casting production process and a shell mold casting production process, wherein the iron film coated sand casting production process has high mold input cost and is not suitable for batch production; in the shell mold casting production process, one mode is as follows: the upper end and the lower end of the shell are clamped by clamps or are firmly adhered by resin, and the side wall is not supported, so that the shell has larger thickness and larger consumption of precoated sand in order to ensure the strength of the shell and prevent deformation, and the production cost is improved; the other mode is as follows: the side walls of the shell mould are supported by the stone blocks, but the heat dissipation effect is poor.

Therefore, how to provide a casting production device, which reduces the production cost, is suitable for mass production, expands the range of product varieties, has high production efficiency, and still remains a problem to be solved in the field.

Disclosure of Invention

The invention aims to provide steel shot filling shell type casting production equipment, which reduces the production cost, is suitable for batch production, enlarges the range of product varieties and has high production efficiency.

In order to solve the technical problem, the invention provides steel shot filling shell mold casting production equipment which comprises a box body and a supply device, wherein the supply device comprises a first supply unit and a second supply unit, the first supply unit is used for forming a coated sand shell mold to be poured and placing the coated sand shell mold in the box body, and the second supply unit is used for uniformly filling steel shots into the box body and between the coated sand shell mold and the box body so as to fix and support the outer side wall of the coated sand shell mold.

The steel shot filling shell mold casting production equipment combines the iron mold sand coating production process and the shell mold casting production process, and adopts the precoated sand shell mold to replace an iron mold on the basis of the iron mold sand coating process, so that the mold investment cost is reduced, and the equipment is more suitable for batch production; meanwhile, the steel shot is filled between the precoated sand shell mold and the box body, so that on one hand, the steel shot plays a role in fixing and supporting the precoated sand shell mold, and at the moment, the thickness of the shell mold can be reduced, the using amount of precoated sand is saved, and the production cost is reduced; on the other hand, the steel shots can also play a role in heat transfer, the cast castings are cooled, the cooling speed is high, the air permeability is good, the product performance is improved, the product quality is stable, the steel shots are easy to recycle, the range of the types of the products suitable for production is wide, and the cost is low.

Optionally, the second supply unit comprises a steel shot storage library for storing the steel shots, and a vibration table, wherein the steel shot storage library is provided with an outlet through which the steel shots enter the box body, and the vibration table is used for vibrating the steel shots to be uniformly filled between the coated sand shell mold and the box body.

Optionally, the side wall of the steel shot storage warehouse is provided with a first cooling component for cooling the steel shots recovered in the steel shot storage warehouse.

Optionally, the first cooling part is a circulating water pipe, and the inside of the circulating water pipe is filled with circulating cooling water.

Optionally, the supply device further comprises a third supply unit for covering sand particles on the top of the steel shot surface in the box.

Optionally, the casting device further comprises a molding device, and the molding device is used for pouring a casting solution into the coated sand shell mold to form a casting and cooling the casting.

Optionally, the casting, the steel shots and the sand grains in the box body are separated and recovered to preset positions respectively.

Optionally, the recovery device further comprises a box turnover machine, wherein the box turnover machine is used for turning over the box body and pouring the casting, the steel shots and the sand grains loaded in the box body into the recovery device.

Optionally, the recovery device includes a vibratory separator that separates the castings by vibratory separation.

Optionally, the recovery device further comprises a drum screen, the mixture of the steel shot and the sand grains after being sorted by the vibration sorting machine is conveyed to the drum screen, the drum screen can horizontally rotate along an axis, screen holes are uniformly formed in the side wall of the drum screen, and the diameter of each screen hole is larger than that of each sand grain and smaller than that of each steel shot.

Optionally, the recycling device further comprises a cooling unit, and the steel shots passing through the trommel enter the cooling unit for cooling.

Optionally, the cooling unit is a cooling drum, the cooling drum can horizontally rotate along an axis, and the cooling unit further comprises a spray pipe arranged above the cooling drum, and the spray pipe can axially spray cooling water to the outer side wall of the cooling drum along the cooling drum.

Optionally, the recycling device further comprises a guide rail, and the box body can move among the supplying device, the forming device and the recycling device along the extending direction of the guide rail.

Optionally, the number of the guide rails is two, the two guide rails are arranged in parallel, the box body further comprises two ferry trolleys located at two ends of the guide rails and used for moving the box body from one of the guide rails to the other guide rail, and the supply device, the forming device and the recovery device are annularly arranged along the extending direction of the guide rails.

Optionally, the box body includes a plurality of box bodies and two box pushing machines, the number of the box bodies is greater than the maximum number of the box bodies supported by the two guide rails, one of the box pushing machines is located at one end of one of the guide rails, the other box pushing machine is located at the other end of the other guide rail, and the box pushing machines are configured to push the box bodies at the corresponding ends from the ferry trolley to be supported by the guide rails, and push the box bodies at the outermost side of the other end to be supported by the ferry trolley.

Drawings

FIG. 1 is a front view of one embodiment of a steel shot-filled shell mold casting production facility provided by the present invention;

FIG. 2 is a top view of the shot-filling shell type casting production apparatus of FIG. 1;

FIG. 3 is a schematic structural diagram of a shot storage reservoir in the shot-filling shell type casting production facility of FIG. 1;

FIG. 4 is a schematic structural diagram of a cooling drum in the steel shot-filling shell type casting production apparatus of FIG. 1;

FIG. 5 is a schematic structural diagram of a box body of the steel shot landfill shell type casting production equipment in a landfill state in FIG. 1;

wherein the reference numerals of fig. 1 to 5 are explained as follows:

1-a box body; 11-a tank body; 12-a carton pushing machine;

2-a grit storage reservoir;

31-shot storage; 311-circulating water pipe; 32-a vibration table;

41-vibration sorting machine; 42-a drum screen; 43-a cooling unit; 431-a cooling drum; 432-spray header; 44-box turnover machine; 45-waste sand warehouse; 46-a hoist;

5-a guide rail;

6-ferry trolley;

01-precoated sand shell mold; 02-steel shot; 03-sand grains;

a-a loading zone; b-a pouring area; c-a cooling zone; d-a recovery area.

Detailed Description

In order to make the technical solutions of the present invention better understood, the present invention is further described in detail with reference to the accompanying drawings and specific embodiments.

The terms "first," "second," and the like, herein are used for convenience in describing two or more structures or components that are identical or similar in structure and/or function, and do not denote any particular limitation in order and/or importance.

Referring to fig. 1 and 2, fig. 1 is a front view of an embodiment of a steel shot-filled shell type casting production apparatus according to the present invention; FIG. 2 is a top view of the shot-filling shell type casting apparatus of FIG. 1.

The invention provides steel shot filling shell mold casting production equipment which comprises a box body 1 and a supply device, wherein the supply device comprises a first supply unit and a second supply unit, the first supply unit is used for forming a coated sand shell mold 01 to be poured and placing the coated sand shell mold 01 in the box body 1, and the second supply unit is used for uniformly filling steel shots 02 into the box body 1 and between the coated sand shell mold 01 and the box body 1 so as to fix and support the outer side wall of the coated sand shell mold 01.

The steel shot filling shell mold casting production equipment combines the iron mold sand coating production process and the shell mold casting production process, and adopts the film-coated sand shell mold 01 to replace an iron mold on the basis of the iron mold sand coating process, so that the mold investment cost is reduced, and the equipment is more suitable for batch production; meanwhile, the steel shot 02 is filled between the precoated sand shell mold 01 and the box body 1, so that on one hand, the outer side wall of the precoated sand shell mold 01 is fixed and supported, and at the moment, the thickness of the precoated sand shell mold 01 can be reduced, the using amount of precoated sand is saved, and the production cost is reduced; on the other hand, the steel shot 02 can also play a role in heat transfer, the cast casting is cooled, the cooling speed is high, the air permeability is good, the product performance is improved, the product quality is stable, the steel shot 02 is easy to recycle, the range of the types of the products suitable for production is wide, and the cost is low.

In this embodiment, the number of the precoated sand shell molds 01 to be cast at one time is two, and in practical application, the number of single casting is not limited, and the design can be performed by comprehensively considering the size of the box body 1, the casting efficiency and other factors.

In addition, the steel shots 02 referred to herein do not represent that the material is only steel, and the steel shots 02 may be made of any other metal material capable of transferring heat, such as steel, iron-carbon alloy, and the like.

Specifically, in the present embodiment, the second supply unit includes a shot storage 31 for storing the shots 02, and a vibration table 32, the shot storage 31 is provided with an outlet through which the shots 02 can enter the tank 1, and the vibration table 32 is configured to vibrate the shots 02 to be uniformly filled between the precoated sand shell mold 01 and the tank 1, so as to fix the precoated sand shell mold 01.

In this embodiment, the outlet is disposed at the bottom of the shot storage 31, and a valve is disposed at the outlet for opening or closing the outlet; meanwhile, as shown in fig. 1, when the container 1 is loaded in the loading area a, the vibration table 32 is located at the bottom of the container 1, and the steel shot 02 is compacted by vibration.

After the pouring is finished, the steel shots 02 are recycled into the steel shot storage 31, and the steel shots 02 need to be cooled in order to not influence the heat transfer efficiency of the steel shots 02 in the next pouring; therefore, in this embodiment, the side wall of the steel shot storage 31 is provided with a first cooling component for cooling the steel shots 02 recovered in the steel shot storage 31.

Specifically, the first cooling component may be a circulating water pipe 311, and circulating cooling water is filled in the circulating water pipe 311, so that heat of the steel shot 02 is taken away through the circulating flow of the cooling water, and the purpose of cooling is achieved.

Of course, the specific embodiment of the first cooling component is not limited as long as the cooling function can be achieved, and it is also feasible to cool the steel shots 02 by providing a cooling fan.

Further, in the present embodiment, the supply apparatus further includes a third supply unit for coating the sand 03 on the surface of the steel shot 02 at the top inside the box 1.

Because the casting liquid can not be prevented from splashing during pouring, if the surface of the top steel shot 02 is not covered with sand grains 03, the splashed casting liquid can adhere the steel shot 02 together, and the steel shot 02 can not be used continuously, so that the surface of the top steel shot 02 is covered with the sand grains 03, the steel shot 02 can be protected, and subsequent recycling is facilitated.

As shown in fig. 2, the third supply unit is a sand storage tank 2, and an opening is arranged at the bottom of the sand storage tank 2, and a valve is arranged at the opening for opening or closing the outlet.

In addition, the forming device comprises pouring equipment located in the pouring area B and cooling equipment located in the cooling area C, wherein the pouring equipment is used for pouring casting liquid into the coated sand shell mold 01 to form a casting, and the cooling equipment is used for cooling the casting.

Further, the recovery device is also included, and is used for separating the casting, the steel shots 02 and the sand grains 03 in the box body 1 and respectively recovering the casting, the steel shots 02 and the sand grains 03 to preset positions.

Through setting up recovery unit, separate the recovery with foundry goods, shot 02 and grit 03 in the box 1 to the foundry goods carries out subsequent processing step, recovery such as shot 02 and grit 03 and prepares follow-up use, carries out automated control, reduces artifical intensity of labour, improves production efficiency, obtains the improvement of big degree in the aspect of site management and sanitation.

After casting, the precoated sand shell mold 01 is broken into sand lumps due to high-temperature failure, and after passing through a recovery device, it is recovered together with the sand particles 03 into the waste sand silo 45.

Further, a box turnover machine 44 is further included, and the box turnover machine 44 is used for turning over the box body 1 and pouring the castings, the steel shots 02 and the sand grains 03 loaded in the box body 1 into a recovery device so as to carry out sorting operation.

In particular, the recovery device comprises a first sorting unit for sorting out the castings and a second sorting unit to which the mixture of steel shots 02 and grit 03 is transferred, in particular by means of the elevator 46, for separating the steel shots 02 and grit 03.

The first sorting unit is a vibration sorting machine 41, and because the cast is relatively different from the sand 03 and the steel shot 02 in mass and volume, the cast can be easily separated from the sand 03 and the steel shot 02 through vibration.

The second sorting unit is a drum screen 42, the drum screen 42 can horizontally rotate along an axis, screen holes are formed in the side wall of the drum screen 42, the diameter of each screen hole is larger than that of each sand 03 and smaller than that of each steel shot 02, after the mixture of the sand 03 and the steel shots 02 enters the drum screen 42, the sand 03 leaves the drum screen 42 through the screen holes and enters the old sand storage 45, and the steel shots 02 leave the drum screen 42 through the end parts, so that the sand 03 and the steel shots 02 are separated.

Further, the recovery device also comprises a cooling unit 43, and the steel shots 02 passing through the drum screen 42 enter the cooling unit 43 for cooling.

Specifically, the cooling unit 43 includes a cooling drum 431, the steel shots 02 are conveyed to the inside of the cooling drum 431 by a lifter 46, the cooling drum 431 is horizontally rotatable along an axis, and the cooling unit further includes a shower pipe 432 provided above the cooling drum 431, a length of the shower pipe 432 is not less than a length of the cooling drum 431, and the shower pipe 432 is capable of spraying cooling water to an outer side wall of the cooling drum 431 along an axial direction of the cooling drum 431.

In the embodiment, the cooling water is sprayed to the outer side wall of the cooling roller 431, so that the steel shots 02 inside the cooling roller 431 are cooled, and meanwhile, the steel shots 02 cannot be in direct contact with the cooling water, so that rusting is avoided; in addition, the cooling drum 431 rotates slowly, so that the steel shots 02 at different positions inside the cooling drum 431 can be cooled.

Therefore, in the steel shot landfill shell type casting production equipment of the embodiment, after the steel shot 02 is cast, the steel shot 02 is subjected to two cooling procedures, firstly, the steel shot 02 is subjected to primary cooling through the cooling unit 43, and then, the steel shot 02 returns to the steel shot storage 31 to be subjected to secondary cooling through the circulating water pipe 311, so that the steel shot 02 can have good heat transfer efficiency in subsequent use.

In addition, the cooling method of the cooling drum 431 is not limited, and it is possible to provide a circulating water pipe, a cooling fan, and the like, in addition to spraying the cooling water through the spray pipe 432.

Further, the box body 1 further comprises a guide rail 5 which plays a role of guiding, and the box body 1 can move among the supplying device, the forming device and the recovering device in sequence along the extending direction of the guide rail 5.

In this embodiment, the number of the guide rails 5 is two, the two guide rails 5 are arranged in parallel, the apparatus further includes two ferry trolleys 6 located at two ends of the guide rails 5, the ferry trolleys are used for moving the box body 1 from one of the guide rails 5 to the other guide rail 5, and the supply device, the forming device and the recovery device are annularly arranged along the extending direction of the guide rails 5.

As shown in fig. 2, the pouring zone B and the cooling zone C are arranged on the same guide rail 5; the loading area A and the recovery area D are arranged on the other guide rail 5, and the arrangement can enable the structure of the steel shot filling shell mold casting production equipment to be more compact, reduce the occupied space and improve the practicability of the equipment.

In addition, loading district A, pouring zone B, cooling space C and recovery area D annular are arranged for box 1 can be according to the cyclic movement between feeding device, forming device and recovery unit of technology order, improves automatic level, effectively improves work efficiency.

Further, the box body 1 comprises a plurality of box bodies 11 and two box pushing machines 12, the number of the box bodies 11 is more than the maximum number of the box bodies 11 supported by the two guide rails 5, one box pushing machine 12 is located at one end of one guide rail 5, the other box pushing machine 12 is located at the other end of the other guide rail 5, and the box pushing machines 12 are used for pushing the box bodies 11 at the corresponding ends from the ferry trolley 6 to be supported on the guide rails 5 and pushing the box bodies 11 at the outermost sides of the other ends to be supported on the ferry trolley 6.

Specifically, taking the view angle of fig. 2 as an example, the guide rail 5 located above the page is defined as an upper guide rail; the guide rail 5 positioned below the page is a lower guide rail; the box pushing machine 12 corresponding to the upper guide rail is an upper left box pushing machine; the box pusher 12 corresponding to the lower guide rail is a lower right box pusher.

In this embodiment, the number of the box bodies 11 is one more than that which can be accommodated on the two guide rails 5, so that when the upper left box pushing machine pushes the loaded box bodies 11 to the upper guide rail pouring area B, the castings inside the box bodies 11 at the right ends of the upper guide rails are cooled and pushed to the ferry trolley 6 supported on the right side, the ferry trolley 6 on the right side drives the box bodies 11 to move to the lower guide rails, the lower right box pushing machine operates, and the box bodies 11 are conveyed to the recovery area D for recovery; meanwhile, when the box body 11 enters the recovery area D, the box body 11 loaded on the left side of the lower guide rail is pushed to the ferry trolley 6 on the left side, the ferry trolley 6 on the left side drives the box body 11 to move to the upper guide rail, the steps are repeated, the molding and recovery processes are continued, and the steps are repeated in a circulating mode, so that the uninterrupted automatic molding process is realized.

In addition to the case pushing machine 12 for circulating and reciprocating the case body 11, it is also possible to directly provide a driving means such as a motor or the like to the case body 11 for driving the rollers at the bottom of the case body 11. Of course, the driving mode of the embodiment is simpler in structure, and the production cost is reduced.

The present invention provides a steel shot filling shell type casting production device, which is described in detail above, and the principle and the implementation of the present invention are explained in the present document by using specific examples, and the above description of the examples is only used to help understanding the method and the core idea of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (15)

1. The steel shot filling shell mold casting production equipment is characterized by comprising a box body (1) and a supply device, wherein the supply device comprises a first supply unit and a second supply unit, the first supply unit is used for forming a coated sand shell mold (01) to be poured and placing the coated sand shell mold (01) in the box body (1), and the second supply unit is used for uniformly filling steel shots (02) into the box body (1) and between the coated sand shell mold (01) and the box body (1) so as to fix and support the outer side wall of the coated sand shell mold (01).

2. The steel shot landfill shell type casting production apparatus as recited in claim 1, wherein the second supply unit includes a steel shot storage 31 for storing the steel shot 02, and a vibration table 32, the steel shot storage 31 being provided with an outlet through which the steel shot 02 enters the tank 1, the vibration table 32 being configured to vibrate the steel shot 02 to be uniformly filled between the precoated sand shell mold 01 and the tank 1.

3. The steel shot landfill shell type casting production facility as recited in claim 2, wherein the side wall of the steel shot storage 31 is provided with a first cooling means for cooling the steel shot 02 recovered in the steel shot storage 31.

4. The steel shot-burying shell-type casting production plant as recited in claim 3, wherein said first cooling member is a circulating water pipe (311), and an inside of said circulating water pipe (311) is filled with circulating cooling water.

5. The shot-filling shell-type casting production plant as recited in any one of claims 1 to 4, characterised in that the supply means further comprises a third supply unit for coating sand grains (03) on the surface of the steel shot (02) in the top portion of the tank (1).

6. The apparatus of claim 5, further comprising a molding device for pouring a casting solution into the coated sand shell mold (01) to form a casting and cooling the casting.

7. The apparatus for producing a steel shot-filled shell mold casting according to claim 6, further comprising a recovery device for separating the casting, the steel shots (02) and the sand grains (03) in the box body (1) and recovering them to predetermined positions, respectively.

8. The steel shot landfill shell type casting production facility as recited in claim 7, further comprising a box turnover machine (44), the box turnover machine (44) being configured to turn over the box body (1) and dump the casting, the steel shots (02), and the sand grains (03) loaded inside the box body (1) into the reclamation apparatus.

9. The apparatus for producing a steel shot landfill shell mold casting according to claim 7, wherein the recovery device includes a vibratory separator (41), and the vibratory separator (41) separates the casting by vibration.

10. The steel shot landfill shell type casting production apparatus of claim 9, wherein the recovery device further includes a drum screen (42), the mixture of the steel shots (02) and the sand grains (03) sorted by the vibration sorter (41) is conveyed to the drum screen (42), the drum screen (42) can horizontally rotate along an axis, and a side wall of the drum screen (42) is uniformly provided with screen holes, and the diameter of the screen holes is larger than that of the sand grains (03) and smaller than that of the steel shots (02).

11. The shot-filling shell-type casting production plant according to claim 10, wherein the recycling apparatus further comprises a cooling unit (43), the steel shots (02) passing through the trommel (42) entering the cooling unit (43) for cooling.

12. The shot-filling shell-type casting production facility as recited in claim 11, wherein the cooling unit (43) includes a cooling drum (431), the cooling drum (431) being horizontally rotatable along an axis, and further includes a shower pipe (432) provided above the cooling drum (431), the shower pipe (432) being capable of spraying cooling water to an outer side wall of the cooling drum (431) in an axial direction of the cooling drum (431).

13. The shot-filling shell-type casting production plant of claim 7, further comprising a guide rail (5), the box (1) being movable along the extension of the guide rail (5) between the feeding means, the forming means and the recovery means.

14. Shot-filling shell-and-mould casting plant according to claim 13, characterized in that said rails (5) are two in number, two of said rails (5) being arranged in parallel, and in that it further comprises two ferry trolleys (6) at the two ends of said rails (5) for moving said box (1) from one of said rails (5) to the other of said rails (5), said feeding means, said forming means and said recovery means being arranged annularly along the extension of said rails (5).

15. The steel shot-filled shell type casting production plant as recited in claim 14, characterised in that the box body (1) comprises a plurality of box bodies (11) and two box pushers (12), the number of the box bodies (11) being greater than the maximum number of the box bodies (11) that can be supported by the two guide rails (5), one of the box pushers (12) being located at one end of one of the guide rails (5) and the other box pusher (12) being located at the other end of the other guide rail (5), the box pushers (12) being adapted to push the box bodies (11) at the respective ends from the ferry trolley (6) to be supported on the guide rails (5) and to push the box bodies (11) at the outermost side of the other end to be supported on the ferry trolley (6).

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