CN217798845U - Sand box for molding large castings - Google Patents

Abstract

The utility model discloses a sand box for large casting modeling, which comprises a frame body, wherein the top end of the frame body is provided with a net feeding body, the bottom end of the frame body is provided with a bottom net body, the outer wall of the net feeding body is provided with two groups of clamping grooves which are arranged up and down, the bottom end of the net feeding body and the top end of the bottom net body are both provided with another clamping groove which is mutually matched with the clamping grooves, fastening bolts can be inserted into the clamping grooves, and the top ends and the bottom ends of the fastening bolts are both meshed with limit nuts; through the framework, the bottom net body, the clamping groove, the fastening bolt, the limiting nut and the like which are arranged, the problem that the cast is prone to producing large errors due to the fact that the sand core inside the sand box is deformed when the sand box is moved in the process of turning over a large casting is effectively solved, and the practicability of the device is improved.

Description

Sand box for molding large castings

Technical Field

The utility model relates to a foundry goods molding technique field especially relates to a large-scale foundry goods is sand box for molding.

Background

Casting molding refers to a process of manufacturing a casting mold by using process equipment such as molding sand, a pattern and the like, and is an important process in casting production, the molding process determines the production cost, the quality and the production efficiency of the casting, in the molding process, the casting sand which is pounded and tightly clamped in an upper sand box and a lower sand box is respectively called as an upper sand mold and a lower sand mold, when the casting with a simple shape and a certain end surface at the maximum section is molded, the casting sand box for molding the large casting is generally used for molding, the existing casting sand box for molding the large casting can basically meet daily use requirements, but has some defects and needs to be improved;

in the actual use process, the prior sand box for molding large castings generally puts a pattern into a box, then puts casting sand formed by mixing silica sand, clay or bonding materials and water according to a certain proportion into the box, after pounding, takes the pattern out of a sand mold, a remained cavity is called a cavity, a gas outlet is required to be arranged at the highest position of the cavity for discharging gas generated in the cavity and in the sand mold and a core, when pouring, molten metal is poured into the cavity from an outer pouring gate, flows into the cavity through a straight pouring gate, a cross pouring gate and an inner pouring gate, and can be taken out after the molten metal is cooled and solidified.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art not enough, the utility model provides a large-scale foundry goods is sand box for molding, framework through setting up, the end net body, the draw-in groove, fastening bolt and stop nut etc, the in-process of having avoided carrying out molding to large-scale foundry goods, need make after whole sand mould, remote die joint department on two adjacent right-angle sides of sand box outer wall, glue and apply a sand mud, make the mold closing mark, put into the sand box with the pattern again inside, but at the in-process that the sand box stood up, on, take place the dislocation easily between the lower flask, the removal of sand box can make inside psammitolite take place deformation, the foundry goods that leads to pouring out produces the problem of great error, the practicality of device has been improved.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a large-scale foundry goods sand box for molding, includes the framework, the framework top is provided with the net body, the framework bottom is provided with the end net body, the draw-in groove of two sets of range from top to bottom has all been seted up to the net body outer wall, go up net body bottom and end net body top and all set up another draw-in groove of mutually supporting with the draw-in groove, and the inside fastening bolt that all can insert of draw-in groove, fastening bolt's top and bottom all mesh are provided with stop nut.

As an optimized technical scheme of the utility model, framework top and bottom surface all are provided with a plurality of groups of bosss, and the boss all forms the exhaust hole with last dictyosome and end dictyosome mutually supporting.

As an optimal technical scheme of the utility model, the boss all is the equidistance and distributes, the exhaust hole that boss and last dictyosome and end dictyosome mutually support to form all is the equidistance and distributes.

As an optimal technical scheme of the utility model, go up the screen cloth body, framework and all blocks on the bottom screen cloth body surface are provided with a plurality of groups's cardboard, and the cardboard all sets up to E shape.

As a preferred technical scheme of the utility model, the surface of cardboard all is provided with two sets of the same concave part of size and a set of lug portion, the inside of concave part all can block into in the gap that goes up the external wall of dictyosome, framework and end net set up, lug portion all can insert inside the exhaust hole.

As a preferred technical scheme of the utility model, both ends surface all is provided with a plurality of groups closed loop lug around going up the dictyosome and the end dictyosome

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

1. through the frame body, the bottom net body, the clamping grooves, the fastening bolts, the limiting nuts and the like, the problem that after the whole sand mold is made, a piece of sand mud is adhered to and coated on the long-distance parting surface of two adjacent right-angle sides on the outer wall of the sand box to make a mold closing mark, and then a mold sample is placed into the sand box is solved, but in the process that the sand box turns over, dislocation is easy to occur between the upper sand box and the lower sand box, the sand cores in the sand box are deformed due to the movement of the sand box, so that the cast casting is large in error is caused, the fastening bolts are inserted into the clamping grooves formed in the upper net body, the frame body and the bottom net body through the movement of the fastening bolts, then the two groups of limiting nuts are moved, and the two groups of limiting nuts are matched with the fastening bolts to reinforce the positions of the upper net body, the frame body and the bottom net body, so that the dislocation of the upper net body, the frame body and the bottom net body in the moving process is avoided, and the practicability of the device is improved;

2. through exhaust hole and the boss that sets up, effectively avoided moulding the casting in-process to large-scale foundry goods, because the quantity of the molten metal of pouring into is more, the gas outlet probably can't in time discharge the gas that produces among the casting process, lead to appearing exhausting not smooth, the problem of mould that expands, support net body and end net body through the boss, it produces the exhaust hole to make between net body and end net body and the framework, gas can be through exhausting hole from the inside discharge of net body, thereby reach the purpose of guaranteeing the circulation of gas in the casting process, the stability of device has been improved.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic diagram of the explosion three-dimensional structure of the present invention;

FIG. 3 is a schematic view of the three-dimensional structure of the clamping plate of the present invention;

fig. 4 is a schematic front view of the structure of the present invention;

fig. 5 is an enlarged schematic structural view of a portion a in fig. 1 according to the present invention;

fig. 6 is an enlarged schematic structural diagram of the present invention at B in fig. 2.

Wherein: 1. a net body is arranged; 2. a frame body; 3. a bottom net body; 4. an exhaust hole; 5. a card slot; 6. fastening a bolt; 7. a limit nut; 8. a closed loop lifting lug; 9. a boss; 10. and (4) clamping the board.

Detailed Description

In order to make the technical means, creation features, achievement objects and functions of the present invention easy to understand, the present invention will be further explained with reference to the following embodiments, however, the following embodiments are only preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the embodiment, those skilled in the art can obtain other embodiments without making creative efforts, which all belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

referring to fig. 1-6, a sand box for molding large castings includes a frame 2, a top net 1 is disposed at the top end of the frame 2, a bottom net 3 is disposed at the bottom end of the frame 2, two sets of slots 5 are disposed on the outer wall of the top net 1, another slot 5 is disposed at the bottom end of the top net 1 and the top end of the bottom net 3, the slots 5 are engaged with each other, a fastening bolt 6 can be inserted into the slot 5, and a stop nut 7 is engaged with the top end and the bottom end of the fastening bolt 6.

When the positions of the upper net body 1, the frame body 2 and the bottom net body 3 need to be reinforced, the fastening bolt 6 is moved to enable the fastening bolt 6 to be inserted into the clamping grooves 5 formed in the outer walls of the upper net body 1 and the frame body 2 and the outer walls of the upper net body 1 and the bottom net body 3 on the same side, the positions of the upper net body 1, the frame body 2 and the bottom net body 3 are pre-limited by the fastening bolt 6, then the two sets of limiting nuts 7 are moved and rotated to enable the two sets of limiting nuts 7 to be meshed at the upper end and the lower end of the fastening bolt 6, the limiting nuts 7 are rotated under the limitation of the fastening bolt 6 and are attached to the outer wall surfaces of the upper net body 1, the frame body 2 and the bottom net body 3, the limiting nuts 7 can be matched with the fastening bolt 6 to reinforce the positions of the upper net body 1, the frame body 2 and the bottom net body 3, and dislocation in the moving process is avoided.

In other embodiments, the top end surface and the bottom end surface of the frame body 2 are provided with a plurality of groups of bosses 9, and the bosses 9 are matched with the upper net body 1 and the bottom net body 3 to form the exhaust holes 4;

through this design, make and go up the net body 1 and end net body 3 at the in-process of carrying out the installation, framework 2 can set up on 3 top surfaces of net body at the end through the boss 9 that sets up in the bottom, simultaneously go up net body 1 and can set up on 2 top surfaces of framework through framework 2 setting boss 9 on the top, support through boss 9, it produces multiunit exhaust hole 4 to make to go up between net body 1 and end net body 3 and the framework 2, after the molding is accomplished, the inside clearance in exhaust hole 4 is filled up by the casting sand, before pouring, through seting up the gas outlet in exhaust hole 4 department, a large amount of gas that produces when making the pouring can be followed the discharge through the gas outlet in exhaust hole 4 department, exhaust unobstructed has been ensured, the large-scale foundry goods of reduction expands the possibility of mould.

In other embodiments, the bosses 9 are distributed equidistantly, and the exhaust holes 4 formed by the bosses 9 and the upper net body 1 and the bottom net body 3 which are matched with each other are distributed equidistantly;

through the design, the bosses 9 are matched with the upper net body 1, the frame body 2 and the bottom net body 3 to generate a plurality of groups of exhaust holes 4 with the same size, so that the aim of ensuring that gas generated in the casting process can be uniformly discharged through the gas outlets formed in the exhaust holes 4 is fulfilled.

In other embodiments, the upper net body 1, the frame body 2 and the bottom net body 3 are all provided with a plurality of clamping plates 10 in a clamping manner, and the clamping plates 10 are all arranged in an E shape;

through this design, make cardboard 10 can block in the gap department between net body 1, framework 2 and the end net body 3 to reach the position of reinforcing net body 1, framework 2 and end net body 3, guarantee the purpose of the distance between adjacent net body 1, framework 2 and the end net body 3 simultaneously.

In other embodiments, the surfaces of the clamping plates 10 are all provided with two sets of groove portions and a set of bump portions, the inner portions of the groove portions can be clamped into the gaps formed on the outer walls of the upper net body 1, the frame body 2 and the bottom net body 3, and the bump portions can be inserted into the exhaust holes 4;

through this design, make cardboard 10 go into net body 1, framework 2 and end net body 3 inside back can with last net body 1, framework 2 and the outer wall of end net body 3 closely laminate after going into to reach the mesh that improves cardboard 10's reinforcement effect.

In other embodiments, the front and rear end surfaces of the upper net body 1 and the bottom net body 3 are provided with a plurality of groups of closed-loop lifting lugs 8;

through this design, make the staff when standing up last dictyosome 1, framework 2 and end dictyosome 3, can pass closed loop lug 8 through making hoist top-down to through mutually supporting of hoist and closed loop lug 8 to go up dictyosome 1, framework 2 and end dictyosome 3 and carry out integral hoisting, the hoist can not drop from closed loop lug 8 at the hoist and mount in-process, security when having improved the device and using.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a sand box for large casting molding, includes framework (2), its characterized in that: the novel net rack is characterized in that a net loading body (1) is arranged at the top end of the frame body (2), a bottom net body (3) is arranged at the bottom end of the frame body (2), two groups of clamping grooves (5) which are arranged up and down are formed in the outer wall of the net loading body (1), another clamping groove (5) which is matched with the clamping groove (5) is formed in the bottom end of the net loading body (1) and the top end of the bottom net body (3), fastening bolts (6) can be inserted into the clamping grooves (5), and the top ends and the bottom ends of the fastening bolts (6) are provided with limit nuts (7) in an engaged mode.

2. The flask for molding large castings according to claim 1, wherein: the top end and the bottom end surface of the frame body (2) are provided with a plurality of groups of bosses (9), and the bosses (9) are matched with the upper net body (1) and the bottom net body (3) to form exhaust holes (4).

3. The flask for molding large castings according to claim 2, wherein: boss (9) all are the equidistance and distribute, boss (9) all are the equidistance with last mesh body (1) and bottom mesh body (3) exhaust hole (4) of mutually supporting formation and distribute.

4. The flask for molding large castings according to claim 1, wherein: go up the dictyosome (1), framework (2) and end dictyosome (3) surface and all block and be provided with a plurality of groups cardboard (10), and cardboard (10) all set up to E shape.

5. The flask for molding large castings according to claim 4, wherein: the surface of cardboard (10) all is provided with two sets of the same concave part of size and a set of lug portion, the inside of concave part all can block into in the gap that goes up dictyosome (1), framework (2) and end dictyosome (3) outer wall and set up, lug portion all can insert inside exhaust hole (4).

6. The flask for molding large castings according to claim 1, wherein: the front end surface and the rear end surface of the upper net body (1) and the bottom net body (3) are provided with a plurality of groups of closed-loop lifting lugs (8).

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