A multifunctional sand casting device

Abstract

The present application belongs to sand casting technical field, and particularly relates to a multifunctional sand casting device, which comprises a workbench, wherein the workbench is connected with a sand recycling device, a support table device is arranged on the upper surface of the workbench, a sliding partition plate is slidably connected to the support table device, vertical upward stand columns are symmetrically and fixedly connected to the two sides of the support table, a cross beam is fixedly connected to the upper end of the stand column, a feeding box device and a pressing plate device are fixedly connected to the cross beam, left-right symmetrical upper and lower two groups of rotary table devices are slidably connected to the stand column, a lower mold box and an upper mold box are rotatably connected between the rotary table devices, and the lower mold box and the upper mold box are located between the feeding box device and the support table device; the present application can guarantee the stable lifting and overturning of the lower mold box and the upper mold box, effectively avoid the deformation of the sand mold cavity, reduce the labor intensity of workers, and automatically compact and screen and recycle the sand, thereby further improving the casting efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of sand casting, and particularly relates to a multifunctional sand casting device. BACKGROUND

[0002] Sand casting is a metal casting process that uses sand as the primary mold material. In sand casting, sand molds are created using sand and a pattern, the sand molds are filled with molten metal, and the metal is allowed to cool and solidify. Sand casting is a cost-effective method that is suitable for mass production, especially for complex or large castings. The existing complex shell structures such as cylinder head, clutch housing, and drive rear axle of automobile accessories are mostly formed by sand casting.

[0003] A Chinese invention patent with application number CN202310115734.3 discloses a casting equipment for automobile accessory production, which includes a sand mold box, a casting platform, a hoisting and feeding mechanism, and a locking assembly. The bottom box and the top box are guided and positioned by the cooperation of the guide positioning group and the locking assembly, so that the top box can be centered and adjusted and accurately placed above the bottom box. The bottom box is locked and fixed to prevent it from moving when placed and fixed in the top box. Through multi-stage guide positioning, the problem of shape deviation of the cast automobile accessories caused by inaccurate placement of the sand mold box during casting assembly is avoided. The hoisting and feeding mechanism not only limits the lifting of the top box, but also improves the convenience of sand mold box assembly, effectively improving the production efficiency of sand casting. However, in actual sand casting, manual operation is still required to create the lower and upper molds before molding. During this period, the upper and lower mold boxes need to be turned over multiple times, which can cause deformation of the sand mold cavity and increase the work intensity of the workers, resulting in low casting efficiency. The feeding and pressing of the sand mold during the casting process also requires manual operation, which also limits the improvement of the casting efficiency. In addition, the existing casting device lacks a sand mold processing device, which cannot timely screen and process the sand mold, affecting the recycling of the sand mold.

[0004] Therefore, in view of the above deficiencies, the present application provides a multifunctional sand casting device that can effectively solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a multifunctional sand casting device that can assist workers in turning over the upper and lower mold boxes, automatically adding and compacting sand, and timely crushing and screening the heated and caked sand after casting, thereby effectively solving the problems in the prior art.

[0006] To achieve the above purpose, the specific technical solutions of the present application are as follows:

[0007] The utility model provides a multifunctional sand casting device, including the workbench, the sand recovery device is rotatably connected in the center of workbench, the support table device is established on the workbench upper surface, the support table device is slidably connected with the sliding baffle, the vertical upward stand is fixedly connected with both sides symmetry of support table device, the crossbeam is fixedly connected in the upper end of stand, the feeding box device and the pressing plate device are fixedly connected on the crossbeam, the left and right symmetrical upper and lower two groups of rotary table device are slidably connected on the stand, the lower rotary table device is fixedly connected with the vertically downward telescopic pneumatic cylinder device, the upper rotary table device is fixedly connected with the vertically upward telescopic pneumatic cylinder device, and the telescopic pneumatic cylinder device is fixedly installed on the crossbeam and the workbench respectively, the lower mould box and the upper mould box are rotatably connected between the rotary table device, and the lower mould box and the upper mould box are located between the feeding box device and the support table device.

[0008] As a further arrangement of the above-mentioned scheme, a mounting circular groove is opened in the center of the upper plate surface of the workbench, a driving device is provided on the outer edge of the mounting circular groove, the driving device is fixedly connected to the lower end surface of the upper plate surface of the workbench, and a sand recovery device is rotatably connected in the mounting circular groove. The support table device includes a support table, a baffle plate is provided on the outer edge of the upper end surface of the support table, positioning notches opening upward are opened in the baffle plates on the left and right sides, the positioning notches are located directly below the rotary table device, and a through circular groove is opened in the center of the support table, which is concentric with the mounting circular groove.

[0009] As a further arrangement of the above-mentioned scheme, the sand recovery device includes a recovery circular table, a concentric rotary mounting shaft section is provided on the lower end of the recovery circular table, driving wheel teeth are opened on the rotary mounting shaft section, the rotary mounting shaft section is rotatably connected in the mounting circular groove, the driving wheel teeth are in transmission connection with the driving device, a vertical through material leakage passage is opened in the center of the recovery circular table, a funnel groove is opened on the upper end surface of the recovery circular table, the upper end opening of the funnel groove coincides with the outer edge of the upper end surface of the recovery circular table, the upper end opening of the funnel groove is in communication with the material leakage passage, divergent circumferentially distributed vertical rib plates are provided on the inner wall surface of the funnel groove, a fixed boss is fixedly connected at the convergence of the rib plates, the fixed boss is located directly above the material leakage passage, friction circular table brushes are uniformly rotatably connected to the upper end surfaces of the rib plates, and the upper end surfaces of the friction circular table brushes are flush with the upper end surface of the recovery circular table.

[0010] As a further arrangement of the above-mentioned scheme, a driving motor is fixedly connected to the lower end of the fixed boss, a vertical crushing shaft is connected to the output shaft of the lower end of the driving motor, and circumferentially distributed outwardly divergent disturbance columns are alternately provided on the outer wall of the crushing shaft.

[0011] As a further arrangement of the above-mentioned scheme, the lower end of the rotating installation shaft section is provided with a coaxial screen cylinder, the lower end of the screen cylinder is hingedly connected with a bottom screen plate capable of being freely clamped open and closed, and the screen cylinder and the bottom screen plate are provided with uniformly distributed screen holes.

[0012] As a further arrangement of the above-mentioned scheme, the rotating table device comprises a rotating installation table, a vertical sliding groove is formed in the rotating installation table, a fixed sliding block is arranged in the middle of the sliding groove, the rotating installation table is slidingly installed on the stand column through the sliding groove and the sliding block, a rotating square plate is fixedly connected to the inner side of the rotating installation table, a rotating circular ring groove is formed in the inner side of the rotating square plate, symmetrical electromagnetic lockers are arranged on the outer side of the rotating square plate and located on both sides of the rotating installation table, a lock column penetrating through the rotating square plate is arranged on the electromagnetic locker, the lock column is located in the rotating circular ring groove, a rotating motor is fixedly connected to the outer side of the rotating installation table, the output shaft of the rotating motor penetrates inwardly through the sliding block and the rotating square plate, the output shaft penetrates out of the rotating square plate and is located at the center of the rotating square plate, and a connecting plate is fixedly connected to the rotating installation table and is fixedly connected with the free end of the telescopic pneumatic cylinder device.

[0013] As a further arrangement of the above-mentioned scheme, the lower mold box and the upper mold box are completely identical in structure, the lower mold box is located below the upper mold box, the lower mold box comprises a mold box body, the mold box body is in the shape of a rectangle, a circular sand cavity is formed in the mold box body, the sand cavity is identical in diameter with the sand recovery device and is vertically aligned, rotating guide circular ring strips are formed on the two side surfaces of the mold box body and are slidingly connected with the rotating circular ring groove, a connecting hole is arranged at the center of the rotating guide circular ring strip, a locking hole is formed in the rotating guide circular ring strip, and the locking hole corresponds to the electromagnetic locker.

[0014] As a further arrangement of the above-mentioned scheme, the feeding box device is fixedly installed at the middle position of the cross beam, a telescopic filler pipe capable of being telescoped is arranged at the lower end of the feeding box device, the pressing plate device comprises telescopic devices, the telescopic devices are symmetrically arranged on both sides of the feeding box device, the telescopic devices are vertically installed on the cross beam, the telescopic devices penetrate out of the cross beam at the lower end, and a circular pressing plate is fixedly connected to the lower end of the telescopic device.

[0015] The present application has the following advantages:

[0016] When the lower mold box and the upper mold box need to be turned over during the molding of the sand cavity, the telescopic pneumatic cylinder device automatically adjusts the position of the lower mold box and the upper mold box on the stand column through the rotating table device, the rotating motor drives the lower mold box and the upper mold box to turn over, and the telescopic pneumatic cylinder device and the rotating table device ensure the stable lifting and turning of the lower mold box and the upper mold box, effectively avoiding the deformation of the sand cavity, reducing the labor intensity of workers, and improving the casting efficiency.

[0017] In the casting process, the feeding box device fills the sand into the lower mold box and the upper mold box through the telescopic filler pipe, the telescopic device drives the round pressing plate to rise and fall, and the round pressing plate automatically compacts the sand in the lower mold box and the upper mold box, thereby further improving the casting efficiency and quality.

[0018] After the casting is completed, the castings are taken out, the sliding partition plate is pulled out, the telescopic device drives the round pressing plate to descend and press the sand, the sand contacts the sand recycling device, the driving device drives the recycling round table to rotate, the sand is preliminarily crushed in the rotating process of the friction round table brush, the preliminarily crushed sand enters the screen cylinder device through the material leakage channel and the funnel groove, the sand is further crushed in the falling process and contacts and collides with the crushing shaft, the crushing shaft stirs the sand at the same time, the sand falls into the recycling box after being screened by the screen cylinder and the bottom screen plate, the caked sand and the metal hard block are left in the screen cylinder device, the sand can be screened and recycled in time, and the sand recycling efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic view of the appearance of the present application;

[0020] Figure 2 is a front view of the present application;

[0021] Figure 3 is a position schematic view of the workbench and the sand recycling device of the present application;

[0022] Figure 4 is a schematic view of the workbench and the support table device of the present application;

[0023] Figure 5 is a cross-sectional axonometric schematic view of the sand recycling device of the present application;

[0024] Figure 6 is an assembly schematic view of the upper mold box and the lower mold box of the present application;

[0025] Figure 7 is a first schematic view of the rotating table device of the present application;

[0026] Figure 8 is a second schematic view of the rotating table device of the present application;

[0027] Figure 9 is a schematic view of the lower mold box of the present application;

[0028] Figure 10 is a front view of the feeding box device and the pressing plate device of the present application.

[0029] Workbench; 2, support table device; 3, sliding partition; 4, sand recycling device; 5, sieve cylinder device; 6, recycling box; 7, column; 8, rotary table device; 9, telescopic cylinder device; 10, lower mold box; 11, upper mold box; 12, cross beam; 13, feeding box device; 14, pressing plate device; 101, installation round groove; 102, driving device; 201, support table; 202, blocking strip; 2021, positioning notch; 203, through round groove; 401, recycling round table; 4011, material leakage channel; 4012, funnel groove; 4013, rib plate; 4014, friction round table brush; 4015, fixed boss; 402, rotary mounting shaft section; 403, driving wheel tooth; 404, driving motor; 405, crushing shaft; 4051, disturbance column; 501, sieve cylinder; 502, bottom sieve plate; 503, sieve hole; 801, rotary mounting table; 8011, sliding groove; 8012, sliding block; 802, rotary square plate; 8021, rotary round ring groove; 803, electromagnetic lock; 8031, lock column; 804, connecting plate; 805, rotary motor; 8051, output shaft; 1001, mold box; 1002, sand cavity; 1003, connecting hole; 1004, rotary guide round ring strip; 1005, locking hole; 1301, telescopic filler pipe; 1401, round pressing plate; 1402, telescopic device. DETAILED DESCRIPTION

[0030] In order to enable persons skilled in the art to better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor should belong to the protection scope of the present application.

[0031] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described below in combination with the drawings and embodiments. Figures 1-10 The present application will be described in detail below in combination with the embodiments.

[0032] As Figure 1 , Figure 2As shown, the multifunctional sand casting device, the center of the workbench 1 is rotatably connected with a sand recycling device 4, the upper surface of the workbench 1 is provided with a support table device 2, the support table device 2 is slidably connected with a sliding partition plate 3, the both sides of the support table device 2 are symmetrically fixedly connected with vertical upward columns 7, the upper end of the column 7 is fixedly connected with a crossbeam 12, the crossbeam 12 is fixedly connected with a feeding box device 13 and a pressing plate device 14, the column 7 is slidably connected with two groups of left-right symmetrical rotating table devices 8, the lower rotating table device 8 is fixedly connected with a vertically downward telescopic cylinder device 9, the upper rotating table device 8 is fixedly connected with a vertically upward telescopic cylinder device 9, the telescopic cylinder devices 9 are respectively fixedly installed on the crossbeam 12 and the workbench 1, the rotating table devices 8 are rotatably connected with a lower mold box 10 and an upper mold box 11, and the lower mold box 10 and the upper mold box 11 are located between the feeding box device 13 and the support table device 2.

[0033] As shown in Figure 3 , Figure 4 , the center of the upper plate surface of the workbench 1 is provided with a mounting circular groove 101, the outer edge of the mounting circular groove 101 is provided with a driving device 102, the driving device 102 is fixedly connected to the lower end surface of the upper plate surface of the workbench 1, the mounting circular groove 101 is rotatably connected with the sand recycling device 4, the support table device 2 comprises a support table 201, the outer edge of the upper end surface of the support table 201 is provided with a baffle plate 202, the baffle plate 202 on the left and right sides is provided with a positioning gap 2021 opening upward, and the positioning gap 2021 is located directly below the rotating table device 8; the center of the support table 201 is provided with a penetrating circular groove 203, and the penetrating circular groove 203 is concentric with the mounting circular groove 101.

[0034] As shown in Figure 3 , Figure 5 , the sand recycling device 4 comprises a recycling circular table 401, the lower end of the recycling circular table 401 is provided with a concentric rotating mounting shaft section 402, the rotating mounting shaft section 402 is provided with a driving wheel tooth 403, the rotating mounting shaft section 402 is rotatably connected in the mounting circular groove 101, the driving wheel tooth 403 is in transmission connection with the driving device 102, the center of the recycling circular table 401 is provided with a vertically penetrating material leakage passage 4011, the upper end surface of the recycling circular table 401 is provided with a hopper groove 4012, the upper end opening of the hopper groove 4012 coincides with the outer edge of the upper end surface of the recycling circular table 401, the upper end opening of the hopper groove 4012 is in communication with the material leakage passage 4011, the inner wall surface of the hopper groove 4012 is provided with divergent circumferentially distributed vertical rib plates 4013, the rib plates 4013 are fixedly connected with a fixed boss 4015 at the convergence, the fixed boss 4015 is located directly above the material leakage passage 4011, and the upper end surfaces of the rib plates 4013 are uniformly rotatably connected with friction circular table brushes 4014, and the upper end surfaces of the friction circular table brushes 4014 are flush with the upper end surface of the recycling circular table 401.

[0035] The lower end of the fixed boss 4015 is fixedly connected with a driving motor 404, a vertical crushing shaft 405 is connected on the lower end output shaft of the driving motor 404, the outer wall of the crushing shaft 405 is staggered and provided with outwardly diverging disturbance columns 4051 distributed in a circle, a sieve cylinder 501 is mounted on the lower end of the rotating mounting shaft section 402 and coaxial, a bottom sieve plate 502 capable of being freely clamped open and closed is hinged on the lower end of the sieve cylinder 501, sieve holes 503 are uniformly opened on the sieve cylinder 501 and the bottom sieve plate 502, and the sieve cylinder 501 and the bottom sieve plate 502 can constitute a closed screening cylinder.

[0036] As shown in Figure 6 , Figure 7 , Figure 8 The rotating table device 8 includes a rotating mounting table 801, a vertical sliding groove 8011 is opened on the rotating mounting table 801, a fixed sliding block 8012 is arranged in the middle of the sliding groove 8011, the rotating mounting table 801 is slidingly mounted on the stand column 7 through the sliding groove 8011 and the sliding block 8012, a rotating square plate 802 is fixedly connected to the inner side of the rotating mounting table 801, a rotating circular groove 8021 is opened on the inner side of the rotating square plate 802, symmetrical electromagnetic lockers 803 are arranged on the outer side of the rotating square plate 802 and located on both sides of the rotating mounting table 801, lock columns 8031 penetrating the rotating square plate are arranged on the electromagnetic lockers 803, the lock columns 8031 are located in the rotating circular groove 8021, a rotating motor 805 is fixedly connected to the outer side of the rotating mounting table 801, an output shaft 8051 of the rotating motor 805 penetrates the sliding block 8012 and the rotating square plate 802 inwardly, the output shaft 8051 penetrates out of the rotating square plate 802 and is located at the center of the rotating square plate 802, a connecting plate 804 is fixedly connected to the rotating mounting table 801, and the connecting plate 804 is fixedly connected with the free end of the telescopic pneumatic cylinder device 9.

[0037] As shown in Figure 9 The lower die box 10 and the upper die box 11 are completely the same in structure, the lower die box 10 is located below the upper die box 11, the lower die box 10 includes a die box body 1001, the die box body 1001 is in a whole rectangular shape, a circular sand cavity 1002 is opened in the die box body 1001, the sand cavity 1002 is the same in diameter as the sand recycling device 4 and is vertically aligned, rotating guide circular strips 1004 are opened on the two side surfaces of the die box body 1001, the rotating guide circular strips 1004 are slidingly connected with the rotating circular groove 8021, a connecting hole 1003 is arranged at the center of the rotating guide circular strip 1004, a locking hole 1005 is opened on the rotating guide circular strip 1004, and the locking hole 1005 corresponds to the electromagnetic locker 803.

[0038] As shown in Figure 10As shown, the feeding box device 13 is fixedly installed at the middle position of the cross beam 12, and the lower end of the feeding box device 13 is provided with a telescopic filling pipe 1301. The pressing plate device 14 includes telescopic devices 1402 which are symmetrically arranged on both sides of the feeding box device 13, and the telescopic devices 1402 are vertically installed on the cross beam 12, and the lower end of each telescopic device 1402 penetrates through the cross beam 12, and the lower end of each telescopic device 1402 is fixedly connected with a circular pressing plate 1401 which is horizontally arranged and concentric with the sand cavity 1002.

[0039] The working process of the application is as follows: the sliding partition plate 3 is placed in the baffle plate 202 on the end face of the support table 201, the sliding partition plate 3 separates the sand recycling device 4 and the lower mold box 10, the lower telescopic cylinder device 9 is started, the lower mold box 10 is moved to the lowermost position through the rotating table device 8, the lower end face of the lower mold box 10 is in abutment with the upper end face of the sliding partition plate 3, after the mold is placed in the middle of the sliding partition plate 3, the telescopic filling pipe 1301 is started to add sand to the lower mold box 10, the telescopic device 1402 drives the round pressing plate 1401, the round pressing plate 1401 compacts the sand, the lower telescopic cylinder device 9 drives the lower mold box 10 to rise to a certain height, the electromagnetic lock 803 drives the lock column 8031 to pop up, the lock column 8031 is out of contact with the locking hole 1005, the lower mold box 10 is unlocked, the rotating motor 805 drives the lower mold box 10 to rotate 180°, under the guidance of the rotating guide circular ring strip 1005 and the rotating circular ring groove 8021, the overturning process is stable, the sand cavity is prevented from being deformed, after overturning, the lower mold box 10 is relocked, at this time, the lower mold box 10 is moved to the upper side, the telescopic cylinder device 9 drives the lower mold box 10 to descend to the lowermost position, the telescopic cylinder device 9 on the upper side drives the upper mold box 11 to descend, the upper mold box 11 is in abutment with the lower mold box 10, the sand in the upper mold box 11 is added, compacted and overturned, and the process is the same as the above process, the telescopic cylinder device 9 automatically adjusts the positions of the lower mold box 10 and the upper mold box 11 on the stand column 7 through the rotating table device 8, the rotating motor 805 drives the lower mold box 10 and the upper mold box 11 to overturn, the telescopic cylinder device 9 and the rotating table device 8 ensure that the lower mold box 10 and the upper mold box 11 stably rise and fall and overturn, the deformation of the sand cavity is effectively avoided, the labor intensity of workers is reduced, and the casting efficiency is improved; after the casting is completed, the castings are taken out, the sliding partition plate 3 is pulled out, the telescopic device 1402 drives the round pressing plate 1401 to descend and press the sand, the sand is in contact with the sand recycling device 4, the driving device 102 drives the recycling circular table 401 to rotate, the sand is preliminarily crushed in the rotating process of the friction circular table brush 4014, the preliminarily crushed sand enters the sieve cylinder device 5 through the material leakage channel 4011 and the hopper groove 4012, the sand is further crushed in the falling process and in contact with the crushing shaft 405, the disturbance column 4051 on the crushing shaft 405 stirs the sand at the same time, the sand falls into the recycling box after being screened through the sieve holes 503 on the sieve cylinder 501 and the bottom sieve plate 502 for recycling, the agglomerated sand and metal hard blocks are left in the sieve cylinder device 5, the sand can be timely screened and recycled, and the sand recycling efficiency is improved.

[0040] The foregoing merely illustrates the principles of the application and application of its leading features. This application is not limited to the illustrative embodiments shown and described herein. Rather, this application is capable of operating within a further range of conditions and environments than those specifically described herein, and further modifications can be made without departing from the spirit or scope of the application. Accordingly, the description is to be construed as illustrative only and not restrictive of the broad disclosure or application of the application. The specification and drawings are, accordingly, to be regarded simply as illustrative and with the scope of the application being measured by the appended claims, and not with the specification. No admission is made that any reference constitutes prior art. It is my intent, therefore, to be limited only as appears in the following claims.

[0041] Furthermore, it should be understood that although the description above relates to embodiments, not every embodiment contains only one independent technical solution, and the description above is only for the sake of clarity, and those skilled in the art should understand the description as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A multifunctional sand casting apparatus comprising a work table, characterized by, The workbench center is rotationally connected with a sand recycling device, a support table device is arranged on the upper surface of the workbench, a sliding partition plate is slidably connected to the support table device, vertical upward stand columns are fixedly connected to the two sides of the support table device in a symmetrical manner, a cross beam is fixedly connected to the upper end of the stand column, an upper end of the cross beam is fixedly connected with a feeding box device and a pressing plate device, two groups of rotary table devices are symmetrically and slidably connected to the upper and lower sides of the stand column, a vertically downward telescopic cylinder device is fixedly connected to the lower rotary table device, and a vertically upward telescopic cylinder device is fixedly connected to the upper rotary table device; the telescopic cylinder devices are respectively fixedly installed on the cross beam and the workbench; and a lower mold box and an upper mold box are rotationally connected between the rotary table devices. A mounting circular groove is formed in the center of the upper plate surface of the workbench, a driving device is arranged at the outer edge of the mounting circular groove, and the driving device is fixedly connected to the lower end surface of the upper plate surface of the workbench; the support table device comprises a support table, a baffle plate is arranged at the outer edge of the upper end surface of the support table, and positioning notches are formed in the baffle plates on the left and right sides and open upward; the positioning notches are located directly below the rotary table devices; and a through circular groove is formed in the center of the support table and concentric with the mounting circular groove. The sand recycling device comprises a recycling circular table, a concentric rotary mounting shaft section is arranged at the lower end of the recycling circular table, driving wheel teeth are formed in the rotary mounting shaft section, the rotary mounting shaft section is rotationally connected in the mounting circular groove, the driving wheel teeth are in transmission connection with the driving device, a vertical through leakage passage is formed in the center of the recycling circular table, a funnel groove is formed in the upper end surface of the recycling circular table, the upper end opening of the funnel groove coincides with the outer edge of the upper end surface of the recycling circular table, the upper end opening of the funnel groove is in communication with the leakage passage, vertical rib plates are arranged on the inner wall surface of the funnel groove in a circumferentially distributed manner, a fixed boss is fixedly connected to the convergence of the rib plates, the fixed boss is located directly above the leakage passage, and friction circular table brushes are rotationally connected to the upper end surfaces of the rib plates in a uniform manner.

2. The multifunctional sand casting apparatus according to claim 1, wherein A driving motor is fixedly connected to the lower end of the fixed boss, a vertical crushing shaft is connected to the output shaft of the driving motor, outwardly diverging disturbance columns are arranged on the outer wall of the crushing shaft in a circumferentially distributed manner.

3. The multifunctional sand casting apparatus according to claim 1, wherein A coaxial screen cylinder is mounted at the lower end of the rotary mounting shaft section, a bottom screen plate capable of being freely clamped open and closed is hingedly connected to the lower end of the screen cylinder, and screen holes are uniformly distributed on the screen cylinder and the bottom screen plate.

4. The multifunctional sand casting apparatus according to claim 1, wherein The rotating table device comprises a rotating mounting table, a vertical sliding groove is formed in the rotating mounting table, a fixed sliding block is arranged in the middle of the sliding groove, the rotating mounting table is slidingly mounted on the stand column through the sliding groove and the sliding block, a rotating square plate is fixedly connected to the inner side of the rotating mounting table, a rotating circular groove is formed in the inner side of the rotating square plate, symmetrical electromagnetic lockers are arranged on the outer side of the rotating square plate and located on both sides of the rotating mounting table, a lock post penetrating through the rotating square plate is arranged on the electromagnetic locker, the lock post is located in the rotating circular groove, a rotating motor is fixedly connected to the outer side of the rotating mounting table, the output shaft of the rotating motor penetrates the sliding block and the rotating square plate inward, the output shaft penetrates out of the rotating square plate and is located at the center of the rotating square plate, a connecting plate is fixedly connected to the rotating mounting table, and the connecting plate is fixedly connected to the free end of the telescopic cylinder device.

5. The multifunctional sand casting apparatus according to claim 4, wherein The lower mold box and the upper mold box are completely same in structure, the lower mold box is located below the upper mold box, the lower mold box comprises a mold box body, the mold box body is in a whole rectangular shape, a circular sand cavity is formed in the mold box body, the sand cavity is same in diameter with the sand recycling device and is vertically aligned, rotating guide circular strips are formed on the two side surfaces of the mold box body, the rotating guide circular strips are slidingly connected with the rotating circular groove, a connecting hole is arranged at the center of the rotating guide circular strip, a locking hole is formed in the rotating guide circular strip, and the locking hole is corresponding to the electromagnetic locker.

6. The multifunctional sand casting apparatus according to claim 1, wherein The feeding box device is fixedly mounted at the middle position of the cross beam, the lower end of the feeding box device is provided with an extendable telescopic filling pipe, the pressing plate device comprises telescopic devices, the telescopic devices are symmetrically arranged on both sides of the feeding box device, the telescopic devices are vertically mounted on the cross beam, the lower end of the telescopic device penetrates out of the cross beam, and the lower end of the telescopic device is fixedly connected with a circular pressing plate.

Images