CN214717208U

CN214717208U - Screening, impurity removing and recycling device for sand special for casting

Info

Publication number: CN214717208U
Application number: CN202121287500.XU
Authority: CN
Inventors: 张赵忠; 胡山; 王鹏华; 陶慧勇; 李长伟
Original assignee: Henan Guorong Precision Heavy Machinery Co ltd
Current assignee: Henan Guorong Precision Heavy Machinery Co ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2021-11-16
Anticipated expiration: 2031-06-09

Abstract

The utility model relates to a screening, impurity-removing and recycling device of special sand for casting, which comprises a supporting frame, wherein the supporting frame is provided with a crushing component and a screening component and comprises a top plate and a supporting column; the crushing assembly comprises a crushing box fixed at the bottom of the top plate, a feed hopper is fixed at the top of the top plate, a discharge port is formed in the bottom of the crushing box, and a crushing mechanism is arranged inside the crushing box; screening subassembly includes the screening case, be fixed with vibrating motor on the outer wall of screening case, the uncovered setting in screening case top, the periphery on screening case upper portion is provided with annular mounting bracket, be fixed with damping spring between periphery and the annular mounting bracket top on screening case upper portion, the top of screening case extends to annular mounting bracket top and sets up towards the discharge gate, the bin outlet has been seted up to screening case bottom, sieve powder incasement is fixed with the first sieve that the interval set up from top to bottom, the second sieve, the intercommunication has first row of miscellaneous pipe on the screening case, the miscellaneous pipe is arranged to the second. The sandy soil of caking carries out effective breakage before the screening, avoids the raw materials extravagant, and screening effect is good.

Description

Screening, impurity removing and recycling device for sand special for casting

Technical Field

The utility model belongs to the technical field of the casting mould, especially, relate to a screening edulcoration recovery unit of special sand for casting.

Background

Lost foam casting is also called dry sand full mold negative pressure casting, and is one of the most advanced casting processes in the world at present. The working process and the working principle of the lost foam casting are as follows: firstly preparing a foam plastic model according to the process requirements, coating a special high-temperature-resistant coating on the surface of the foam plastic model, drying, then placing the foam plastic model in a special sand box, filling dry sand according to the process requirements, compacting by utilizing three-dimensional vibration, casting molten metal in a vacuumizing state, gasifying and disappearing the foam plastic model, replacing the model with the molten metal, and copying a casting which is the same as the foam plastic model. In order to reduce the production cost of lost foam casting, the sand in the sand box needs to be recycled. Because the used sandy soil often contains a large amount of impurities, the sandy soil needs to be screened and subjected to impurity removal before being recycled. However, the screening and impurity removing device for recovering the special sand for casting in the prior art is usually simpler in structural design and single in function, only through simple filtering or vibration screening, the sand and the impurities are separated, the screening effect is not good, the agglomerated sand cannot be crushed, some massive sand and the impurities are mixed and then directly treated as waste materials, and therefore raw materials are wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a screening edulcoration recovery unit of special sand for casting for there is the screening effect not good in the screening edulcoration device who is used for retrieving the special sand for casting among the solution prior art, can not carry out the breakage to the sand of caking, thereby causes the technical problem of the waste of raw materials.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the screening, impurity removing and recycling device for the special sand for casting comprises a support frame, wherein the support frame comprises a top plate which is horizontally arranged, two vertically arranged support columns are fixed at two ends of the bottom of the top plate, and a crushing assembly and a screening assembly are sequentially arranged on the support frame from top to bottom; the crushing assembly comprises a crushing box fixedly connected to the bottom of the top plate, a feed hopper communicated with the inside of the crushing box is fixed to one side of the top plate, a discharge hole is formed in the bottom of the crushing box, a discharge valve is arranged at the discharge hole, a crushing mechanism is arranged inside the crushing box, and a driving mechanism for driving the crushing mechanism to rotate is fixed to the top of the top plate; the screening component comprises a screening box arranged below the crushing box, vibrating motors symmetrically arranged are fixed on the outer wall of the screening box, the top end of the screening box is open, an annular mounting frame is arranged on the periphery of the upper portion of the screening box, the inner wall of the annular mounting frame and the outer wall of the screening box are arranged at intervals, a plurality of damping springs uniformly arranged at intervals are fixed between the periphery of the upper portion of the screening box and the top of the annular mounting frame, the top end of the screening box extends upwards to the upper portion of the annular mounting frame and is arranged towards a discharge port, the bottom end of the screening box extends downwards to the lower portion of the annular mounting frame and is provided with a discharge port, a discharge valve is arranged at the discharge port, a first screening plate and a second screening plate which are arranged at intervals up and down are fixed inside the powder screening box, the first screening plate and the second screening plate are both obliquely arranged, screening holes are uniformly distributed on the first screening plate and the second screening plate, and the aperture of the screening holes on the first screening plate is larger than that on the second screening plate, one side intercommunication that screening case upper portion is close to first sieve bottom has downwardly extending's first row miscellaneous pipe, and one side intercommunication that screening case lower part is close to second sieve bottom has downwardly extending's second row miscellaneous pipe, all is provided with on first row miscellaneous pipe and the second row miscellaneous pipe and arranges miscellaneous valve.

Preferably, broken mechanism includes the pivot of vertical downward setting, and the top of pivot runs through the roof and is connected with actuating mechanism's output shaft transmission, and the bottom of pivot extends to the inside below of broken incasement portion, and the periphery fixedly connected with arc blade on pivot upper portion, arc blade equidistance set up in the pivot outside and be the heliciform and distribute.

Preferably, the outside of screening case is provided with the dust cover, the uncovered setting in bottom of dust cover, the equal fixed connection in both sides of dust cover has the bracing piece that the level set up, the other end and the support column fixed connection of bracing piece, the lower part of broken case runs through the dust cover top and extends to the inside top of dust cover, the periphery of annular mounting bracket is fixed with the backup pad that the symmetry set up, the other end of two backup pads respectively with the inner wall fixed connection of dust cover, the top of screening case is located the inside top of dust cover, the bottom of screening case extends to the below of dust cover.

Preferably, the lower part of broken case is the awl fill form, and the lower part of pivot is equipped with the collar through bolt fastening cover, a plurality of connecting rods of the periphery symmetry fixedly connected with of collar, the one end fixed connection of connecting rod on the collar, the other end fixedly connected with scraper blade of connecting rod, the scraper blade cooperatees with the lateral wall of broken case.

Preferably, the driving mechanism comprises a driving motor, an output shaft of the driving motor is in transmission connection with a reduction gearbox, a bevel gear transmission mechanism is arranged in the reduction gearbox, and a rotating shaft is in transmission connection with the output shaft of the reduction gearbox and vertically extends downwards into the crushing box.

Preferably, first sieve and second sieve are V style of calligraphy and distribute inside the screening case, and first row's miscellaneous pipe and second row's miscellaneous pipe set up respectively in the outside both sides of screening case.

The utility model has the advantages that: (1) when the screening box is used, after sand enters the interior of the screening box, under the action of the crushing mechanism, some blocky sand is crushed and scattered, and then enters the interior of the screening box through the discharge port to be screened and decontaminated, so that the crushing effect is good, the blocky sand is prevented from directly entering the interior of the screening box and being blocked by the first sieve plate and the second sieve plate, is mixed with impurities and is directly treated as waste, the waste of raw materials is avoided, the blocky sand can be prevented from blocking the first sieve plate and the second sieve plate, the normal operation of the screening box is ensured, and the screening effect is good; (2) through setting up first sieve and second sieve in screening incasement portion, and the aperture of sieve mesh is greater than the aperture of sieve mesh on the second sieve on the first sieve, and large granule impurity that contains in the sand is arranged in detaching to first sieve, and the second sieve is arranged in detaching to the tiny particle impurity that contains in the sand, passes through twice screening with sand, the effectual effect and the efficiency that improves sand screening edulcoration need not to use extra equipment to sieve convenient and fast.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Reference numerals: 1-support frame, 2-roof, 3-support column, 4-crushing case, 5-feeder hopper, 6-discharge gate, 7-discharge valve, 8-screening case, 9-vibrating motor, 10-annular mounting bracket, 11-damping spring, 12-baffle, 13-bin outlet, 14-discharge valve, 15-first sieve, 16-second sieve, 17-first row miscellaneous pipe, 18-second row miscellaneous pipe, 19-row miscellaneous valve, 20-pivot, 21-arc blade, 22-dust cover, 23-bracing piece, 24-backup pad, 25-collar, 26-connecting rod, 27-scraper blade, 28-driving motor, 29-reduction box.

Detailed Description

As shown in figure 1, the utility model discloses a support frame 1, support frame 1 include the roof 2 of level setting, and the both ends of roof 2 bottom are fixed with the support column 3 of vertical setting, and support frame 1 is gone up from the top down and has set gradually broken subassembly, screening subassembly. Broken subassembly includes fixed connection at the broken case 4 of 2 bottoms of roof, and one side at 2 tops of roof is fixed with the feeder hopper 5 that is linked together with broken incasement 4 inside, adds the material to broken incasement 4 inside through feeder hopper 5, and the top of feeder hopper 5 articulates there is the top cap, and reinforced finishing covers the top cap, prevents the outside loss of the inside sand dust of broken incasement 4, avoids causing environmental pollution. Discharge gate 6 has been seted up to broken case 4's bottom, and discharge gate 6 department is provided with discharge valve 7, can adjust the flexible operation to the inside load and the ejection of compact speed of broken case 4. The crushing box 4 is internally provided with a crushing mechanism, and the top of the top plate 2 is fixed with a driving mechanism for driving the crushing mechanism to rotate. Screening subassembly is including setting up screening case 8 in 4 below broken casees, be fixed with the vibrating motor 9 that the symmetry set up on screening case 8's the outer wall, the uncovered setting in top of screening case 8, the periphery on screening case 8 upper portion is provided with annular mounting bracket 10, the inner wall of annular mounting bracket 10 sets up with screening case 8's outer wall interval, guarantee that screening case 8 can freely vibrate inside annular mounting bracket 10, be fixed with the damping spring 11 that the even interval of a plurality of set up between the periphery on screening case 8 upper portion and the top of annular mounting bracket 10, damping spring 11's top and screening case 8's outer wall fixed connection, damping spring 11's bottom and annular mounting bracket 10 fixed connection, upwards extend to annular mounting bracket 10 top and towards discharge gate 6 setting on screening case 8's top, 8 circumference fixedly connected with baffle 12 are followed in screening case 8 circumference on screening case 8's upper portion, avoid sandy soil to scatter everywhere in the in-process that gets into screening case 8. The bottom downwardly extending of screening case 8 has the below of annular mounting bracket 10 and has seted up bin outlet 13, bin outlet 13 department is provided with discharge valve 14, sieve powder incasement portion is fixed with first sieve 15 that the interval set up from top to bottom, second sieve 16, first sieve 15 and the equal slope of second sieve 16 set up, all the equipartition has the sieve mesh on first sieve 15 and the second sieve 16, the aperture of sieve mesh is greater than the aperture of sieve mesh on the second sieve 16 on the first sieve 15, one side intercommunication that 8 upper portions of screening case are close to first sieve 15 bottoms has downwardly extending's first row of miscellaneous pipe 17, one side intercommunication that 8 lower parts of screening case are close to second sieve 16 bottoms has downwardly extending's second row miscellaneous pipe 18, all be provided with on first row miscellaneous pipe 17 and the second row miscellaneous pipe 18 and arrange miscellaneous valve 19.

Preferably, crushing mechanism includes vertical downwardly disposed pivot 20, and the top of pivot 20 runs through roof 2 and is connected with actuating mechanism's output shaft transmission, and the bottom of pivot 20 extends to the inside below of crushing case 4, and the periphery fixedly connected with arc blade 21 on pivot 20 upper portion, and arc blade 21 equidistance sets up in pivot 20 outside and be the heliciform and distribute. Broken mechanism not only plays the effect of broken sand piece, can also accelerate sand by the outside discharge of discharge gate 6, prevents that sand from gathering into a mass and blockking up discharge gate 6 in broken case 4, and the screening speed that can effectual improvement sand has improved work efficiency.

Preferably, the outside of screening case 8 is provided with dust cover 22, the uncovered setting in bottom of dust cover 22, the bracing piece 23 that the equal fixed connection in both sides of dust cover 22 has the level to set up, the other end and the support column 3 fixed connection of bracing piece 23, the lower part of broken case 4 runs through the dust cover 22 top and extends to the inside top of dust cover 22, the periphery of broken case 4 lower part closely laminates with the inner wall at dust cover 22 top, the periphery of annular mounting bracket 10 is fixed with the backup pad 24 that the symmetry set up, the other end of two backup pads 24 respectively with the inner wall fixed connection of dust cover 22, the top of screening case 8 is located the inside top of dust cover 22, the bottom of screening case 8 extends to the below of dust cover 22. Through setting up dust cover 22, at the inside sand of broken case 4 to the in-process that flows in screening case 8, can play certain effect that blocks, collect to the sand dust, prevent that the sand dust from to loss all around, reduce the pollution to the environment.

Preferably, the lower part of crushing case 4 is the awl fill form, is favorable to the unloading, and the lower part of pivot 20 is equipped with collar 25 through the fixed cover of bolt, and a plurality of connecting rods 26 of the peripheral symmetry fixedly connected with of collar 25, the one end fixed connection of connecting rod 26 are on collar 25, the other end fixedly connected with scraper blade 27 of connecting rod 26, scraper blade 27 and the lateral wall of crushing case 4 cooperate. Scraper 27 is used for scraping the sand that gets adhesion on the lateral wall of broken case 4, makes the sand discharge totally, avoids the raw materials extravagant, and scraper 27 can adopt the silica gel material, reduces the wearing and tearing that scraper 27 caused to broken case 4 inner wall.

Preferably, the driving mechanism comprises a driving motor 28, an output shaft of the driving motor 28 is in transmission connection with a reduction gearbox 29, a bevel gear transmission mechanism is arranged in the reduction gearbox 29, and the rotating shaft 20 is in transmission connection with the output shaft of the reduction gearbox 29 and vertically extends downwards into the crushing box 4. Bevel gear transmission can change the transmission direction, can also reduce the rotational speed of power supply, control the slew velocity of pivot 20 to can use manpower sparingly.

Preferably, the first sieve plate 15 and the second sieve plate 16 are distributed inside the sieve box 8 in a V shape, and the first impurity discharging pipe 17 and the second impurity discharging pipe 18 are respectively arranged on two sides of the outside of the sieve box 8. Collect large granule impurity and tiny particle impurity respectively in the both sides of screening case 8, structural layout is reasonable, avoids producing mutual interference between first row's miscellaneous pipe 17 and the second row miscellaneous pipe 18.

The utility model discloses a theory of operation and working process: during the use, close discharge valve 7, carry the sand that will retrieve to broken incasement 4 inside by feeder hopper 5, driving motor 28 drives pivot 20 and rotates, and when pivot 20 rotated, arc blade 21 and scraper blade 27 of connection on pivot 20 rotated simultaneously, carried out the breakage to the cubic sand in broken case 4. The breakage finishes, opens discharge valve 7, and pivot 20 promotes the whereabouts of sand at the pivoted in-process, and inside sand got into screening case 8 by discharge gate 6, through control discharge valve 7, can adjust the inside load and the ejection of compact speed of broken case 4. Drive first sieve 15, second sieve 16 and vibrate under vibrating motor 9's effect, and the large granule impurity that contains in the sand is detached through first sieve 15 to the inside sand that gets into screening case 8, and the tiny particle impurity that contains in the sand is detached through second sieve 16, and the net sand through the screening outwards discharges by bin outlet 13, and large granule impurity outwards discharges through first trash pipe 17, and tiny particle impurity outwards discharges through second trash pipe 18.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. The utility model provides a screening edulcoration recovery unit of special sand for casting, includes the support frame, its characterized in that: the supporting frame comprises a top plate which is horizontally arranged, supporting columns which are vertically arranged are fixed at two ends of the bottom of the top plate, and a crushing assembly and a screening assembly are sequentially arranged on the supporting frame from top to bottom; the crushing assembly comprises a crushing box fixedly connected to the bottom of the top plate, a feed hopper communicated with the inside of the crushing box is fixed to one side of the top plate, a discharge hole is formed in the bottom of the crushing box, a discharge valve is arranged at the discharge hole, a crushing mechanism is arranged inside the crushing box, and a driving mechanism for driving the crushing mechanism to rotate is fixed to the top of the top plate; the screening component comprises a screening box arranged below the crushing box, vibrating motors symmetrically arranged are fixed on the outer wall of the screening box, the top end of the screening box is open, an annular mounting frame is arranged on the periphery of the upper portion of the screening box, the inner wall of the annular mounting frame and the outer wall of the screening box are arranged at intervals, a plurality of damping springs uniformly arranged at intervals are fixed between the periphery of the upper portion of the screening box and the top of the annular mounting frame, the top end of the screening box extends upwards to the upper portion of the annular mounting frame and is arranged towards a discharge port, the bottom end of the screening box extends downwards to the lower portion of the annular mounting frame and is provided with a discharge port, a discharge valve is arranged at the discharge port, a first screening plate and a second screening plate which are arranged at intervals up and down are fixed inside the powder screening box, the first screening plate and the second screening plate are both obliquely arranged, screening holes are uniformly distributed on the first screening plate and the second screening plate, and the aperture of the screening holes on the first screening plate is larger than that on the second screening plate, one side intercommunication that screening case upper portion is close to first sieve bottom has downwardly extending's first row miscellaneous pipe, and one side intercommunication that screening case lower part is close to second sieve bottom has downwardly extending's second row miscellaneous pipe, all is provided with on first row miscellaneous pipe and the second row miscellaneous pipe and arranges miscellaneous valve.

2. The screening, impurity-removing and recycling device for the sand special for casting according to claim 1, characterized in that: broken mechanism includes the pivot of vertical downward setting, and the top of pivot runs through the roof and is connected with actuating mechanism's output shaft transmission, and the bottom of pivot extends to the below of broken incasement portion, and the periphery fixedly connected with arc blade on pivot upper portion, arc blade equidistance set up in the pivot outside and be the heliciform and distribute.

3. The screening, impurity-removing and recycling device for the sand special for casting according to claim 2, characterized in that: the outside of screening case is provided with the dust cover, the uncovered setting in bottom of dust cover, the equal fixed connection in both sides of dust cover has the bracing piece that the level set up, the other end and the support column fixed connection of bracing piece, the lower part of broken case runs through the dust cover top and extends to the inside top of dust cover, the periphery of annular mounting bracket is fixed with the backup pad that the symmetry set up, the other end of two backup pads respectively with the inner wall fixed connection of dust cover, the top of screening case is located the inside top of dust cover, the bottom of screening case extends to the below of dust cover.

4. The screening, impurity-removing and recycling device for the sand special for casting according to claim 3, characterized in that: the lower part of broken case is the awl and fights the form, and the lower part of pivot is passed through bolt fastening cover and is equipped with the collar, a plurality of connecting rods of the periphery symmetry fixedly connected with of collar, and the one end fixed connection of connecting rod is on the collar, the other end fixedly connected with scraper blade of connecting rod, and the scraper blade cooperatees with the lateral wall of broken case.

5. The screening, impurity-removing and recycling device for the sand special for casting according to any one of claims 2 to 4, characterized in that: the driving mechanism comprises a driving motor, an output shaft of the driving motor is in transmission connection with a reduction gearbox, a bevel gear transmission mechanism is arranged in the reduction gearbox, and a rotating shaft is in transmission connection with the output shaft of the reduction gearbox and vertically extends downwards into the crushing box.

6. The screening, impurity-removing and recycling device for the sand special for casting according to any one of claims 1 to 4, characterized in that: first sieve and second sieve are the V style of calligraphy and distribute inside the screening case, and first row's miscellaneous pipe sets up respectively in the outside both sides of screening case with the miscellaneous pipe of second row.