CN220762267U - Sand blasting device for wax mold casting - Google Patents

Abstract

The utility model relates to the technical field of wax pattern casting, in particular to a sand blasting device for wax pattern casting. Including casing, mount and sand blasting mechanism, the bottom of casing has set firmly and has retrieved the fill, be equipped with the recovery mouth between casing and the recovery fill, cavity one has been seted up to the inside of casing, cavity one's both sides are equipped with assembly chamber one, the bottom and the top of casing are equipped with assembly chamber two respectively and assemble chamber three, assembly chamber one's inside is equipped with the angle adjustment mechanism to sand blasting mechanism regulation, assembly chamber two's inside is equipped with the rotating assembly who accepts the mount. According to the sand blasting device for wax mold casting, provided by the utility model, through the design of the angle adjusting mechanism and the rotating assembly, the contact area between the cast iron sand balls and the outer surface of a casting is increased, and the molding quality of the casting is improved; by the design of the magnetic attraction mechanism, the cast iron sand pellets retained in the casting are recycled, and the production cost of sand blasting is reduced.

Description

Sand blasting device for wax mold casting

Technical Field

The utility model relates to the technical field of wax pattern casting, in particular to a sand blasting device for wax pattern casting.

Background

The sand blasting adopts compressed air as power to form a high-speed spray beam to spray the sprayed material (copper ore sand, quartz sand, silicon carbide, iron sand and sea sand) onto the surface of the workpiece to be treated at a high speed, so that the appearance or shape of the surface of the workpiece is changed. The surface of the workpiece obtains a certain cleanliness and different roughness due to the impact and cutting action of the abrasive on the surface of the workpiece.

When the conventional sand blasting device for wax pattern casting carries out sand blasting on a wax pattern molded casting, most of the sand blasting device is used for uniformly placing the casting on a fixing frame and then placing the fixing frame into the sand blasting device for sand blasting through a crane, but in the practical operation process, we find that when the casting is subjected to sand blasting, most of sand blasts sprayed by a sand blasting head only can act on the local surface of the casting, so that the roughness of the outer surface of the casting after sand blasting is uneven, the molding quality and the overall appearance of the casting are affected, and the practicability is lower.

As disclosed in chinese patent (CN 211193527U), a sand blasting device for casting wax mould comprises a support, the upper surface of the support is provided with a conveying component, the upper part of the conveying component is provided with a sand blasting component, the sand blasting component comprises an outer protective frame, a connecting column is slidably mounted between the upper and lower bottom surfaces of the inner part of the outer protective frame, the inner side wall of the outer protective frame is uniformly hinged with a plurality of guide blocks at intervals, the upper surface of the guide block is provided with a chute in a penetrating way, the guide block is provided with a sand blasting head, the connecting column is slidably mounted in the chute, the upper end of the side wall of the connecting column is fixedly provided with a pushing column, one end of the pushing column, which is far away from the connecting column, is fixedly provided with a pushing plate, the pushing plate is movably connected with the outer protective frame through a telescopic rod, the telescopic rod is sleeved with a compression spring, the rear surface of the pushing plate is provided with an eccentric wheel in a propping way, and one end axle center of the eccentric wheel is provided with a rotating motor.

When the above technology is used, the following technical problems are found in the prior art: when the angle of the sand blasting head is adjusted, the position of the guide block is manually adjusted, the adjusted guide block is fixed by the fixing nut, and then the adjusted sand blasting head is subjected to up-down reciprocating motion through the cooperation of the cam and the spring.

Therefore, we design a sand blasting device for wax mould casting, which is used for providing another technical scheme for the technical problems.

Disclosure of Invention

In view of the above, it is desirable to provide a sand blasting device for wax pattern casting that can sand-blast the entire casting.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a sand blasting device for wax matrix casting, includes casing, mount and sand blasting mechanism, the mount is located in the casing, sand blasting mechanism locates the both sides of casing, the bottom of casing has set firmly and has retrieved the fill, be equipped with the recovery mouth between casing and the recovery fill, cavity one has been seted up to the inside of casing, cavity one's both sides are equipped with assembly chamber one, the bottom and the top of casing are equipped with assembly chamber two and assembly chamber three respectively, assembly chamber one's inside is equipped with the angle adjustment mechanism to sand blasting mechanism regulation, assembly chamber two's inside is equipped with the rotating assembly who accepts the mount.

As a preferred embodiment of the sand blasting device for wax mould casting, the angle adjusting mechanism comprises a rotary drum, the rotary drum is provided with a plurality of rotary shafts which are rotatably connected with an assembling cavity, the inside of the assembling cavity is provided with the rotary shafts I, one end of each rotary shaft I positioned in the middle of the assembling cavity is provided with a driving motor I, the output end of each driving motor I is fixedly connected with the rotary shaft I, the middle of each rotary shaft I is provided with a driving wheel I, the rotary shafts I positioned at the top ends of the driving wheels I are respectively provided with a driven wheel I, the driving wheels I and the driven wheels I are sleeved with a transmission belt, and driving adjusting assemblies for driving the rotary drum are symmetrically arranged on the rotary shafts I.

As a preferred implementation mode of the sand blasting device for wax mould casting, a connecting shaft is arranged at the bottom of a first rotating shaft positioned in the middle of an assembly cavity, a second driving wheel is arranged on one side, close to the left, of the first rotating shaft, a second driven wheel is arranged on the connecting shaft, the second driving wheel is connected with the second driven wheel through a transmission belt, the connecting shaft is divided into two sections, one opposite sides of the two sections of the connecting shaft are rotatably connected through bearings, one end, close to the left, of the connecting shaft, opposite to the connecting shaft, is respectively provided with a driving bevel gear and a driven bevel gear, a connecting bevel gear is arranged between the driving bevel gear and the driven bevel gear, a rotating shaft is arranged in the middle of the connecting bevel gear, two ends of the rotating shaft are respectively rotatably connected with the assembly cavity through bearings, a third driving wheel is arranged on the connecting shaft, the first rotating shaft positioned at the bottom end of the third driving wheel, and the third driving wheel is connected with the third driven wheel through the transmission belt.

As a preferred implementation mode of the sand blasting device for wax mould casting, the driving adjusting component comprises cams, the cams are symmetrically arranged on two sides of a first rotating shaft, a transmission block is arranged on one inner side of each cam and fixedly connected with the rotary drum, first limiting blocks are respectively arranged on the upper end face and the lower end face of each transmission block, a compression spring is arranged on one first limiting block, and the other end of each compression spring is fixedly connected with each transmission block.

As a preferred implementation mode of the sand blasting device for wax mould casting, the rotating assembly comprises a second driving motor, the second driving motor is arranged in the second assembly cavity, a turntable is fixedly arranged at the output end of the second driving motor, a hydraulic cylinder is fixedly arranged at the top end of the turntable, a fixed disc is arranged at the output end of the hydraulic cylinder, a plurality of fixed rods are arranged on one side, opposite to the fixed frame, of the fixed disc, a plurality of first inserting holes matched with the fixed rods are formed in the fixed frame, hooks are formed in the top end of the fixed frame, and an opening I is formed in the top of the shell.

As a preferred implementation mode of the sand blasting device for wax mould casting, the sand blasting mechanism comprises a pressurizing air delivery pump arranged at the back of a shell, wherein an air sand feeding pipe and a connecting feeding pipe are respectively arranged at two sides of the pressurizing air delivery pump, a cavity II is communicated with the other end of the connecting feeding pipe, the cavity II is arranged at the back of the shell, a plurality of feeding shunt pipes are arranged at two sides of the cavity II, the tail ends of the feeding shunt pipes are communicated with a rotary drum, a storage cavity with one end closed is arranged in the rotary drum, a plurality of sand blasting heads are arranged at one side, close to the cavity I, of the rotary drum, and the sand blasting heads are communicated with the storage cavity.

As a preferred implementation mode of the sand blasting device for wax mold casting, the interior of the assembly cavity III is provided with the magnetic attraction mechanism, the magnetic attraction mechanism comprises winding rollers symmetrically arranged in the assembly cavity III, one side of one winding roller is provided with a second rotating shaft, the other end of the second rotating shaft is connected with a third driving motor, the second rotating shaft is provided with a fourth driving wheel, one side of the other winding roller is provided with a third rotating shaft, the other end of the third rotating shaft is rotationally connected with the assembly cavity III, the third rotating shaft is provided with a fourth driven wheel, the fourth driving wheel and the fourth driven wheel are sleeved with a driving belt, the winding roller is wound with magnetic strips, the bottom of each magnetic strip is symmetrically provided with a second limiting block, and the top of the first cavity is provided with a second opening matched with each magnetic strip.

As a preferred implementation mode of the sand blasting device for wax pattern casting, provided by the utility model, the front end of the shell is connected with the bin gate through the hinge, the middle part of the bin gate is provided with the observation window, one side of the bin gate opposite to the shell is provided with the plurality of magnetic blocks, and the shell is provided with the second plug-in hole matched with the magnetic blocks.

It can be clearly seen that the technical problems to be solved by the present application must be solved by the above-mentioned technical solutions of the present application.

Meanwhile, through the technical scheme, the utility model has at least the following beneficial effects:

1. according to the sand blasting device for the wax mould casting, provided by the utility model, the injection angle of the sand blasting head is adjusted through the design of the angle adjusting mechanism, so that the coverage range of the sand blasting head is increased, the contact area between the cast iron sand pellets and the outer surface of a casting is increased, and the molding quality of the casting after sand blasting treatment is improved.

2. According to the sand blasting device for wax mold casting, provided by the utility model, through the design of the rotating assembly, the fixing frame can rotate in the sand blasting device, so that the contact area of the cast iron sand balls and the outer surface of a casting is further increased, and the molding quality of the casting is improved.

3. According to the sand blasting device for the wax mould casting, provided by the utility model, the cast iron sand pellets which are retained in the casting after sand blasting treatment are recovered through the design of the magnetic attraction mechanism, so that the resource waste caused by the cast iron sand pellets falling on the ground in the process of removing the casting is avoided, the workload of manually recovering and cleaning the cast iron sand pellets which are retained in the casting is reduced, the work efficiency of the casting sand blasting treatment is improved, and the production cost of the casting sand blasting treatment is reduced to a certain extent.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the bin gate of the utility model in an open state;

FIG. 3 is a schematic view of the magnetic attraction mechanism in the working position;

FIG. 4 is a schematic side cross-sectional view of the present utility model;

FIG. 5 is a schematic view showing the internal structure of the first assembly chamber of the present utility model;

FIG. 6 is a schematic view of the structure of FIG. 5A according to the present utility model;

FIG. 7 is a schematic view of the cam of the present utility model;

FIG. 8 is a schematic view of a first position structure of a first stop block according to the present utility model;

FIG. 9 is a schematic view of a rotating assembly according to the present utility model;

FIG. 10 is a schematic view of a structure of a fixing frame and a rotating assembly according to the present utility model;

FIG. 11 is a schematic view of the sand blasting mechanism of the present utility model;

fig. 12 is a schematic structural view of the magnetic attraction mechanism of the present utility model.

In the figure: 1. a housing; 2. a fixing frame; 3. a recovery bucket; 4. recovering the mouth; 5. a first cavity; 6. the first assembling cavity is formed; 7. the second assembly cavity is formed; 8. an assembling cavity III; 9. a rotating drum; 10. a first rotating shaft; 11. a first driving wheel; 12. a driven wheel I; 13. a connecting shaft; 14. a second driving wheel; 15. a driven wheel II; 16. driving a bevel gear; 17. a driven bevel gear; 18. connecting a bevel gear; 20. a third driving wheel; 21. a driven wheel III; 22. a cam; 23. a transmission block; 24. a first limiting block; 25. a compression spring; 26. a second driving motor; 27. a turntable; 28. a hydraulic cylinder; 29. a fixed plate; 30. a fixed rod; 31. a first plug hole; 32. a hook; 33. an opening I; 34. a pressurized air delivery pump; 35. a gas sand feeding pipe; 36. connecting a feeding pipe; 37. a cavity II; 38. feeding a shunt tube; 39. a blasting head; 40. a wind-up roll; 41. a second rotating shaft; 42. a third driving motor; 43. a driving wheel IV; 44. a third rotating shaft; 45. a driven wheel IV; 46. a magnetic strip; 47. a second limiting block; 48. an opening II; 49. a bin gate; 50. an observation window; 51. a magnetic block; 52. and a second plug hole.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1

Referring to fig. 1-12, specifically, by designing the angle adjusting mechanism, when the sand blasting head 39 performs sand blasting on the casting on the fixing frame 2, the coverage area of the cast iron sand pellets sprayed by the sand blasting head 39 is wider, so that the contact area between the cast iron sand pellets and the outer surface of the casting is increased, and by designing the rotating assembly, the fixing frame 2 can rotate in the cavity one 5, so that the contact area between the cast iron sand pellets and the outer surface of the casting is further improved, and the molding quality of the casting after sand blasting is improved.

Referring to fig. 4 to 7, in particular, the cams 22 may be provided in five and are classified into three different types according to the positions provided in the first fitting chamber 6:

the first type is arranged in the middle of the first assembling cavity 6, two arc-shaped blocks are symmetrically arranged on the cam 22, and the radian of each arc-shaped block can be set to 90 degrees so as to be matched with the transmission block 23, so that the sand blasting head 39 arranged in the middle of the first assembling cavity 6 can swing up and down to a larger extent;

the second type is symmetrically arranged on two sides of the first cam 22, three arc-shaped blocks are uniformly distributed on the cam 22, the radian of each arc-shaped block can be set to 60 degrees so as to be matched with the transmission block 23, the swing amplitude of the sand blasting head 39 is controlled, the excessive swing amplitude of the sand blasting head 39 is prevented, cast iron sand pellets sprayed by the sand blasting head 39 directly collide with the first cavity 5, and the utilization efficiency of the cast iron sand pellets is influenced;

the third type is arranged on the other side of the second cam 22, four arc-shaped blocks are uniformly distributed on the cam 22, and the radian of each arc-shaped block can be set to 45 degrees, so that the swing angle of the sand blasting head 39 is further reduced, the collision between the cast iron sand pellets and the first cavity 5 is prevented, and the utilization efficiency of the cast iron sand pellets during sand blasting treatment is improved.

Referring to fig. 8, specifically, the number of limiting blocks cooperating with the cam 22 may be five, and may be divided into five different types according to the positions of the limiting blocks in the first assembly chamber 6:

the first type of limiting block is arranged at the top end of the first assembling cavity 6, the transmission block 23 is arranged between the two limiting blocks, the transmission block 23 is rotationally arranged inside the first assembling cavity 6 through a rotating shaft arranged in the middle, and in the two types of limiting blocks, the distance between the limiting block positioned above the transmission block 23 and the transmission block 23 is far smaller than the distance between the limiting block positioned below and the transmission block 23, so that the upward swinging amplitude of the spray head is ensured to be smaller when the transmission block 23 is matched with the cam 22, and the utilization rate of cast iron sand pellets is improved;

the second type of limiting block is arranged below the first type of limiting block, and the distance between the limiting block positioned above the transmission block 23 and the transmission block 23 is slightly smaller than the distance between the lower limiting block and the transmission block 23 in the two types of limiting blocks, so that the upward swing amplitude of the spray head is controlled;

the third type of limiting block is matched with the first type of cam 22 and is arranged in the middle of the first assembling cavity 6, the distance between the first limiting block 24 and the transmission block 23 is equal, and the first limiting block 24 positioned at the bottom end of the transmission block 23 is provided with a compression spring 25, so that the first limiting block 24 can always press the transmission block 23 through the action of the compression spring 25, the transmission block 23 can be reset to the initial position under the action of the compression spring 25 and the limiting block when the transmission block 23 is not contacted with the arc-shaped block, and the sand blasting head 39 can return to the original position after swinging to the maximum amplitude, and continuous operation of swinging is ensured;

in the fourth type and the fifth type, the distance between the two limiting blocks is opposite to the distance between the limiting blocks in the second type and the first type respectively, and the compression spring 25 applies downward extrusion force to the transmission block 23, so that the limiting blocks are reset after the arc-shaped blocks are contacted, and the normal operation of swing is ensured;

it should be noted that in this embodiment, the transmission block 23 is disposed in the middle of the two limiting blocks, and the transmission block 23 is rotationally disposed in the first assembly cavity 6 through a rotating shaft disposed in the middle, so that one end of the transmission block 23 can be pressed down while the other end can drive the sandblasting head 39 to move in the opposite direction, thereby ensuring the normal swing of the sandblasting head 39.

The sand blasting process of the utility model is as follows:

after the casting is placed on the fixed frame 2, the fixed frame 2 is lifted by a crane, the fixed frame 2 is placed in the sand blasting device along the opening II 48, the hydraulic cylinder 28 can drive the fixed disc 29 to ascend, the fixed disc 29 is driven to rotate by the driving motor II 26, the fixed rod 30 is inserted into the first inserting hole 31, the fixed frame 2 is fixed, the bin door 49 is closed at the moment, the magnetic block 51 arranged on the bin door 49 is inserted into the second inserting hole, the driving motor I is controlled to rotate, the driving motor drives the first rotating shaft 10 to rotate clockwise, the first rotating shaft 10 drives the first rotating shaft 10 positioned above the first rotating shaft 10 to rotate clockwise through the matching of the driving wheel 11 and the first driven wheel 12 with a driving belt, the first rotating shaft 10 is driven to rotate clockwise through the matching of the second driving wheel 14 and the second driven wheel 15 with the driving belt, the connecting shaft 13 positioned below the first rotating shaft 10 is driven, counterclockwise rotation of the other connecting shaft 13 is realized through the matching of the driving bevel gears 18 and the driven bevel gear 17, and the first rotating shaft 21 and the second rotating shaft 10 is driven by the matching of the driving bevel gear 13, so that the sand blasting quality can not be formed by the sand blasting cavity is improved.

Referring to fig. 9-10, specifically, the bottom of the first cavity 5 is a groove design inclined towards the middle, the recovery ports 4 are symmetrically arranged inside the first cavity 5, and the receiving hopper communicated with the bottom of the first cavity 5 is of an inverted cone design, so that the iron casting sand pellets can be more conveniently collected by the design, the iron casting sand pellets are prevented from being accumulated inside the first cavity 5, and the collection efficiency of the iron casting sand pellets is improved.

Example two

In the first embodiment, when the sand blasting device is used for performing sand blasting on a casting, if a groove exists in the casting, part of the cast iron sand pellets sprayed by the sand blasting head 39 remain in the casting after the sand blasting is finished, and need to be cleaned manually, and when the casting is removed from the sand blasting device, part of the cast iron sand pellets can be scattered onto the ground from the casting, so that uniform cleaning and recovery are difficult, and resource waste is caused;

referring to fig. 12, specifically, through the design of the magnetic attraction mechanism, the cast iron pellets retained in the casting after the sand blasting treatment are cleaned uniformly, when the cast iron pellets are cleaned, the second driving motor 26 drives the second rotating shaft 19 to rotate, the winding roller 40 rotates clockwise, the magnetic strips 46 on the winding roller 40 move downwards along with the second rotating shaft 19 and the third rotating shaft 44, and the fourth driving shaft 43, the fourth driven wheel 45 and the driving belt enable the third rotating shaft 44 and the third rotating shaft 44 to rotate synchronously, so that the magnetic strips 46 positioned on two sides of the first cavity 5 move downwards along the second opening 48, the cast iron pellets in the casting are adsorbed on the magnetic strips 46 under the magnetic force of the magnetic strips 46, the first driving motor can be started at this moment, so that the fixed frame 2 rotates between the two magnetic strips 46, the cast iron pellets retained in the casting are adsorbed in all directions, the fixed frame 2 can be moved out of the inside the sand blasting device through a crane after the adsorption is completed, the warehouse door 49 is closed, the third driving motor 42 reversely drives the magnetic strips 46 to rise, the cast iron pellets are attached on the magnetic strips 46, the cast iron pellets fall off from the second opening 48, the cast iron pellets fall off from the first opening 48, and the cast iron pellets fall into the casting can be recovered, and the casting sand can be recovered, and the cost is reduced.

It should be noted that in this embodiment, the stopper at the bottom of the magnetic strip 46 may be made of a material such as a plastic wood board for isolating the magnetic force of the magnetic strip 46, so as to ensure the normal falling of the cast iron pellets during the winding process of the magnetic strip 46.

The utility model provides a sand blasting device for wax mould casting, which comprises the following using process:

after the casting is placed on the fixing frame 2, the fixing frame 2 is lifted through the crane, the sand blasting device is placed inside along the opening II 48, the hydraulic cylinder 28 can drive the fixing disc 29 to ascend at the moment, the driving motor II 26 drives the fixing disc 29 to rotate, the fixing rod 30 is inserted into the inserting hole I31 to fix the fixing frame 2, the bin gate 49 is closed at the moment, the driving motor I is controlled to rotate and drive the cam 22 in the assembling cavity I6 to rotate, the sand blasting head 39 can swing back and forth in the cavity I5 at the moment, and comprehensive sand blasting treatment is carried out on the casting by matching with the rotation of the fixing frame 2.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims (8)

1. The utility model provides a sand blasting device for wax matrix casting, includes casing (1), mount (2) and sand blasting mechanism, in casing (1) was located to mount (2), the both sides of casing (1) are located to sand blasting mechanism, its characterized in that: the utility model discloses a sand blasting machine, including casing (1), sand blasting mechanism, cavity, angle adjustment mechanism, rotation subassembly that is equipped with to mount (2) is equipped with in the bottom of casing (1), retrieve fill (3) set firmly to the bottom of casing (1), be equipped with between casing (1) and retrieve fill (3) and retrieve mouth (4), cavity (5) have been seted up to the inside of casing (1), the both sides of cavity (5) are equipped with assembly chamber (6), the bottom and the top of casing (1) are equipped with assembly chamber two (7) and assembly chamber three (8) respectively, the inside of assembly chamber one (6) is equipped with the angle adjustment mechanism to sand blasting mechanism regulation, the inside of assembly chamber two (7) is equipped with the rotation subassembly of accepting mount (2).

2. The sand blasting device for wax mold casting according to claim 1, wherein the angle adjusting mechanism comprises a rotary drum (9), the rotary drum (9) is provided with a plurality of rotary shafts (10) which are rotatably connected with the first assembling cavity (6), one end of the first rotating shaft (10) positioned in the middle of the first assembling cavity (6) is provided with a first driving motor, the output end of the first driving motor is fixedly connected with the first rotating shaft (10), the middle of the first rotating shaft (10) is provided with a first driving wheel (11), the first rotating shafts (10) positioned at the top ends of the first driving wheels (11) are respectively provided with a first driven wheel (12), a transmission belt is sleeved on the first driving wheel (11) and the first driven wheel (12), and driving adjusting assemblies for driving the rotary drum (9) are symmetrically arranged on the first rotating shaft (10).

3. The sand blasting device for wax mold casting according to claim 2, wherein a connecting shaft (13) is arranged at the bottom of a rotating shaft one (10) positioned in the middle of the first assembling cavity (6), a driving wheel two (14) is arranged on one side, close to the left, of the rotating shaft one (10), a driven wheel two (15) is arranged on the connecting shaft (13), the driving wheel two (14) is connected with the driven wheel two (15) through a transmission belt, the connecting shaft (13) is divided into two sections, one side, opposite to the connecting shaft (13), of the two sections is rotatably connected through a bearing, a driving bevel gear (16) and a driven bevel gear (17) are respectively arranged at one end, opposite to the connecting shaft (13) on the left, of the connecting shaft (13) and the connecting shaft (13) on the right, a connecting bevel gear (18) is arranged between the driving bevel gear (16) and the driven bevel gear (17), the middle of the connecting bevel gear (18) is provided with a rotating shaft, two ends of the rotating shaft are respectively rotatably connected with the bearing and the first assembling cavity (6), a driving wheel three (20) is arranged on the connecting shaft (13) on the right, and the driving wheel three (20) is respectively connected with the driven wheel three (21) through the three driving wheel belt (21).

4. The sand blasting device for wax mold casting according to claim 2, wherein the driving adjusting assembly comprises cams (22), the cams (22) are symmetrically arranged on two sides of the first rotating shaft (10), a transmission block (23) is arranged on one side, which is located inwards, of the cams (22), the transmission block (23) is fixedly connected with the rotary drum (9), limiting blocks (24) are respectively arranged on the upper end surface and the lower end surface of the transmission block (23), one limiting block (24) is provided with a compression spring (25), and the other end of the compression spring (25) is fixedly connected with the transmission block (23).

5. The sand blasting device for wax mold casting according to claim 1, wherein the rotating assembly comprises a driving motor II (26), the driving motor II (26) is arranged in the assembly cavity II (7), a rotary table (27) is fixedly arranged at the output end of the driving motor, a hydraulic cylinder (28) is fixedly arranged at the top end of the rotary table (27), a fixed disc (29) is arranged at the output end of the hydraulic cylinder (28), a plurality of fixed rods (30) are arranged on one side, opposite to the fixed disc (29), of the fixed frame (2), a plurality of first inserting holes (31) matched with the fixed rods (30) are formed in the fixed frame (2), a hook (32) is arranged at the top end of the fixed frame (2), and an opening I (33) is formed in the top of the shell (1).

6. The sand blasting device for wax mold casting according to claim 1, wherein the sand blasting mechanism comprises a pressurized air delivery pump (34) arranged at the back of the shell (1), two sides of the pressurized air delivery pump (34) are respectively provided with an air sand feeding pipe (35) and a connecting feeding pipe (36), the other end of the connecting feeding pipe (36) is communicated with a cavity II (37), the cavity II (37) is arranged at the back of the shell (1) and two sides of the cavity II (37) are provided with a plurality of feeding shunt pipes (38), the tail ends of the feeding shunt pipes (38) are communicated with the rotary drum (9), one end of the rotary drum (9) is provided with a storage cavity, one side, close to the cavity I (5), of the rotary drum (9) is provided with a plurality of sand blasting heads (39), and the sand blasting heads (39) are communicated with the storage cavity.

7. The sand blasting device for wax mold casting according to claim 1, wherein a magnetic attraction mechanism is arranged in the assembly cavity III (8), the magnetic attraction mechanism comprises winding rollers (40) symmetrically arranged in the assembly cavity III (8), one winding roller (40) is provided with a second rotating shaft (19) on one side, the other end of the second rotating shaft (19) is connected with a third driving motor (42), a fourth driving wheel (43) is arranged on the second rotating shaft (19), one side of the winding roller (40) is provided with a third rotating shaft (44), the other end of the third rotating shaft (44) is rotationally connected with the assembly cavity III (8), a fourth driven wheel (45) is arranged on the third rotating shaft (44), a transmission belt is sleeved on the fourth driving wheel (43) and the fourth driven wheel (45), a magnetic strip (46) is wound on the winding roller (40), a second limiting block (47) is symmetrically arranged at the bottom of the magnetic strip (46), and an opening (48) matched with the magnetic strip (46) is arranged at the top of the first cavity (5).

8. The sand blasting device for wax mold casting according to claim 1, wherein the front end of the shell (1) is connected with a bin gate (49) through a hinge, an observation window (50) is arranged in the middle of the bin gate (49), a plurality of magnetic blocks (51) are arranged on one side, opposite to the shell (1), of the bin gate (49), and a second plug hole (52) matched with the magnetic blocks (51) is arranged on the shell (1).