CN113600744A - Back sand conveying and feeding device for casting - Google Patents
Back sand conveying and feeding device for casting Download PDFInfo
- Publication number
- CN113600744A CN113600744A CN202110771932.6A CN202110771932A CN113600744A CN 113600744 A CN113600744 A CN 113600744A CN 202110771932 A CN202110771932 A CN 202110771932A CN 113600744 A CN113600744 A CN 113600744A
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- conveying
- pipe
- back sand
- casting
- fixedly connected
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/14—Equipment for storing or handling the dressed mould material, forming part of a plant for preparing such material
- B22C5/16—Equipment for storing or handling the dressed mould material, forming part of a plant for preparing such material with conveyors or other equipment for feeding the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/06—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sieving or magnetic separating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention is suitable for the technical field of casting, and provides a back sand conveying and feeding device for casting, which comprises: the feed bin, the inside of feed bin is rotated and is provided with the axis of rotation, the bottom fixedly connected with spiral leaf of axis of rotation. The output shaft of first motor and the coaxial fixed connection in top of axis of rotation, coaxial coupling has one-way pivoted incomplete gear in the axis of rotation, and the feed bin is gone up to slide and is provided with waist circular frame, and the inner wall both sides of waist circular frame are provided with the rack. The fixed intercommunication of slope is on the feed bin to add the material box, and the sieve slope is fixed in the inside of adding the material box, has placed the scraping wings on the sieve, and the scraping wings rotates with oval frame to be connected. The lower extreme intercommunication of feed bin is in the one end of delivery side's pipe, and delivery side's inside is provided with carries the piece, and the terminal intercommunication that flows of delivery side's pipe is provided with the bulk cargo pipe, rotates on the bulk cargo pipe and is provided with the ring gear, and the inside of ring gear is fixed to be provided with breaks up the piece and communicates the hose. The invention has the advantages that: simple structure, the clearance is convenient, and it is convenient to use, and the conveying is smooth and easy, and the ejection of compact is even.
Description
Technical Field
The invention belongs to the technical field of casting, and particularly relates to a back sand conveying and feeding device for casting.
Background
Casting is a relatively early metal hot working process mastered by human beings, and has a history of about 6000 years. Is an important means for manufacturing tools by human beings, and the technical means is also being used nowadays. With the continuous progress of casting technology, the performance requirements of castings are higher and higher. In the casting industry, the molding sand is often divided into facing sand and back sand, the facing sand is a layer of molding sand which is in contact with a pattern during molding and has better performance, more new sand is often added for preparation, the back sand is the molding sand for filling a sand box after the facing sand is coated on the pattern, and 100% of used sand which is slightly processed is used. The back sand needs to be recycled after use, and certain impurities such as metal blocks, stones, weeds and the like can be mixed in the back sand during use. The back sand of retrieving is saved, piles up easy caking for a long time, and after filling and getting into the sand box, the caking can cause the molding sand shaping quality poor.
Disclosure of Invention
The embodiment of the invention aims to provide a back sand conveying and feeding device for casting, and aims to solve the problem of poor molding quality of molding sand caused by agglomeration.
The invention is realized in this way, a casting-use back sand conveying and feeding device, comprising:
the bin is internally used for containing back sand, a rotating shaft is rotatably arranged in the bin, the bottom of the rotating shaft is fixedly connected with a spiral blade, and the spiral blade is rotatably nested at the bottom of the bin;
the first motor is fixedly connected to the bin through a support frame, an output shaft of the first motor is coaxially and fixedly connected with the top of the rotating shaft, the rotating shaft is coaxially connected with an incomplete gear which rotates in a single direction, the bin is slidably provided with a waist-shaped frame, racks are arranged on two sides of the inner wall of the waist-shaped frame, and the incomplete gear is nested in the waist-shaped frame;
the feeding box is obliquely and fixedly communicated with the storage bin, the sieve plate is obliquely and fixedly arranged inside the feeding box, a slag discharge port is formed in the end part, away from the storage bin, of the feeding box, a material pushing plate is placed on the sieve plate, and the material pushing plate is rotationally connected with the oval frame;
when feeding is carried out, the recycled back sand is poured into the feeding box, the first motor drives the incomplete gear and the rotating shaft to rotate in the forward direction, the rotating shaft rotates to drive the spiral blades to rotate in the reverse direction without guiding, the incomplete gear is alternately meshed with the racks on two sides, and the material pushing plate is pushed to slide on the sieve plate in a reciprocating manner to carry out sieving; when the screening is not carried out and the material is guided, a motor drives the rotating shaft to rotate reversely to enable the spiral blades to rotate to finish the back sand conveying, and the incomplete gear cannot rotate and is not screened;
the lower end of the bin is communicated with one end of a conveying square pipe, a conveying piece is arranged inside the conveying square pipe, the flowing tail end of the conveying square pipe is communicated with a material scattering pipe, a gear ring is rotatably arranged on the material scattering pipe, at least one scattering sheet is fixedly arranged inside the gear ring, the material scattering pipe is communicated with a hose, a second motor is fixedly arranged on the conveying square pipe, an output shaft of the second motor is coaxially and fixedly connected with a gear, and the gear is meshed with the gear ring; the second motor drives the gear and enables the ring to rotate, and the gear drives the scattering pieces to rotate in the bulk material pipe to scatter the back sand conveyed in the bulk material pipe.
The conveying part comprises a plurality of conveying rollers and shifting plates, the conveying rollers are sequentially and rotatably arranged at the upper part of the conveying square pipe in the conveying direction, the plurality of shifting plates are radially and fixedly arranged on the conveying rollers, one end of each conveying roller extends out of the conveying square pipe and is coaxially and fixedly connected with a belt pulley, and every two belt pulleys are in transmission connection through a belt; the coaxial fixedly connected with worm of output shaft of second motor, the coaxial fixedly connected with worm wheel of a belt pulley that is close to the bulk material pipe, the worm wheel meshes with the worm, and the second motor drives worm and gear revolve, and the worm drives the worm wheel and rotates, and the worm wheel drives the belt pulley and rotates and accomplish the inside transfer roller rotation of delivery side and carry out the conveying.
The invention also aims to provide that the square conveying pipe is fixedly connected to the upright post through the mounting frame.
Another objective of the present invention is to provide the mounting frame is of a concave structure, and the mounting frame is clamped at the bottom and two sides of the square conveying pipe.
The invention also aims to provide that a cover plate is fixedly connected to the conveying square pipe.
The other purpose of the invention is to provide that the inner wall of the feeding box is provided with a sliding groove at two sides of the material pushing plate in the sliding direction, and two ends of the material pushing plate are slidably nested in the sliding groove.
The other purpose of the invention is to provide that the bulk material pipe comprises a fixed pipe, a connecting frame and a connecting pipe, the fixed pipe is fixedly connected to the bottom of the square conveying pipe, the fixed pipe and the connecting pipe have the same diameter and are coaxially and fixedly communicated through the connecting frame, and the gear ring is rotatably arranged between the fixed pipe and the connecting frame.
Another object of the present invention is to provide that the connecting frame is of a concave structure, and two ends of the connecting frame are fixedly connected to the outer walls of the fixed pipe and the connecting pipe and leave a rotation space of the gear ring.
Another object of the present invention is to provide a handle fixedly disposed at the bottom of the hose.
Another object of the present invention is to provide a troweling plate fixedly connected to the bottom of the hose.
According to the casting back sand conveying and feeding device, the back sand is pushed to slide on the sieve plate in a reciprocating mode through the material pushing plate, the back sand is pushed to filter on the sieve plate, and therefore discharging of impurities is facilitated. The forward filtering and the reverse output are completed through the first motor, so that the device is simple in structure, the production and manufacturing cost is reduced, and the control is convenient and fast. The conveying roller and the kicking plate enable the back sand to be conveyed in sequence. Thereby avoided carrying the friction between the inside wall of square tube and the back sand and causing the conveying to hinder, avoided the back sand to pile up in carrying the square tube inside. The conveying roller and the shifting plate are arranged on the upper portion of the conveying square pipe, the back sand can be separated from the shifting plate through gravity, and the back sand is prevented from being left on the shifting plate. The scattering pieces rotate in the bulk material pipe to scatter the back sand conveyed in the bulk material pipe, so that the back sand can be uniformly spread in the sand box to be molded. The belt pulley and the scattering sheet are rotated by the second motor, so that the transmission and scattering are finished, the structure of the device is simplified, the production and manufacturing cost is saved, and the energy is saved. Through worm wheel and worm speed reduction transmission, the speed setting is realized conveying and is broken up in ring gear and gear cooperation, has realized speed reduction conveying, high-speed breaking up, has realized the cooperation of transmission, speed of breaking up, has improved the ability of carrying and breaking up. The invention has the advantages that: simple structure, the clearance is convenient, and it is convenient to use, and the conveying is smooth and easy, and the ejection of compact is even.
Drawings
Fig. 1 is a three-dimensional structure diagram of a casting back sand conveying and feeding device provided by an embodiment of the invention;
fig. 2 is a schematic top structural view of a casting back sand conveying and feeding device according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of section A in FIG. 2;
fig. 4 is a schematic structural diagram of a casting back sand conveying and feeding device in a right side view according to an embodiment of the present invention;
fig. 5 is a schematic perspective view of a bin in a casting back sand conveying and feeding device according to an embodiment of the present invention;
fig. 6 is a schematic perspective view of a material scattering pipe in a casting back sand conveying and feeding device according to an embodiment of the present invention;
fig. 7 is a schematic perspective view of a gear ring and a scattering sheet in a casting back sand conveying and feeding device according to an embodiment of the invention.
In the drawings: the device comprises a storage bin 1, a support frame 2, a waist circular frame 3, an incomplete gear 4, a rotating shaft 5, a first motor 6, a feeding box 7, a sliding groove 8, a sieve plate 9, a slag discharge port 10, a material pushing plate 11, a square conveying pipe 12, a mounting frame 13, an upright post 14, a belt pulley 15, a belt 16, a conveying roller 17, a material shifting plate 18, a worm wheel 19, a second motor 20, a worm 21, a bulk material pipe 22, a gear ring 23, a gear 24, a hose 25, a trowelling plate 26, a handle 27, a fixing pipe 28, a connecting frame 29, a connecting pipe 30, spiral blades 31 and scattering sheets 32.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Fig. 1 to 4 show a structural diagram of a casting back sand conveying and feeding device according to an embodiment of the present invention. Casting is with back of body sand conveying loading attachment includes: the device comprises a storage bin 1, a feeding box 7, a conveying square pipe 12 and a hose 25.
Feed bin 1, inside is used for holding the back sand, because the back sand is the sand after using then retrieves, so the inside of back sand often contains certain impurity, for example metal fillings, stone block etc. can carry out the material loading through material loading machine, conveyer etc. feed bin 1 can be installed on second floor, frame or stand 14 to can utilize gravity to carry out the transport of back sand. The silo 1 can be arranged in a funnel-shaped structure, so that the storage capacity of the back sand and the output of the back sand are increased.
The inside rotation of feed bin 1 is provided with axis of rotation 5, and the bottom fixedly connected with spiral leaf 31 of axis of rotation 5, spiral leaf 31 rotate the nestification in the bottom of feed bin 1, and first motor 6 passes through 2 fixed connection of support frame on feed bin 1. The output shaft of the first motor 6 is coaxially and fixedly connected with the top of the rotating shaft 5, and the rotating shaft 5 is coaxially connected with the incomplete gear 4 which rotates in a single direction. The storage bin 1 is provided with a waist-shaped frame 3 in a sliding mode, racks are arranged on two sides of the inner wall of the waist-shaped frame 3, and the incomplete gear 4 is nested inside the waist-shaped frame 3.
As shown in fig. 5, the feeding box 7 is fixedly communicated with the feed bin 1 in an inclined manner, the sieve plate 9 is fixed in the feeding box 7 in an inclined manner, a slag discharge port 10 is formed in the end part, far away from the feed bin 1, of the feeding box 7, a material pushing plate 11 is placed on the sieve plate 9, and the material pushing plate 11 is rotatably connected with the kidney-shaped frame 3. The first motor 6 is electrically connected to a controller, and the rotation speed and the rotation direction of the first motor 6 can be controlled by the controller. When the feeding is carried out, the back sand used in circulation is poured into the feeding box 7, and the back sand falls on the sieve plate 9. The first motor 6 is started in the forward direction, under the driving of the first motor 6, the first motor 6 drives the rotating shaft 5 to rotate, the incomplete gear 4 and the rotating shaft 5 rotate together, the rotating shaft 5 rotates to drive the spiral blade 31 to rotate in the reverse direction, and the spiral blade 31 does not guide materials downwards in the reverse direction. The incomplete gear 4 is alternatively meshed with racks on two sides, so that the material pushing plate 11 is pushed to slide on the sieve plate 9 in a reciprocating mode, and the sand backing slides downwards under the action of gravity. The scraping wings 11 push the back sand to slide upwards on the sieve plate 9, and the back sand passes through the sieve plate 9, enters the feeding box 7 and finally enters the bin 1 for storage. The impurities can not be pushed out from the slag discharge port 10 through the sieve plate 9. When not screening and carry out the guide, start first motor 6 and drive axis of rotation 5 antiport, axis of rotation 5 drives spiral leaf 31 and rotates the bottom of accomplishing the back of the body sand and carry out from feed bin 1. Because the incomplete gear 4 is of a one-way transmission structure, the incomplete gear 4 cannot rotate at the moment, and therefore material guiding without screening is completed. The sliding grooves 8 are formed in the inner wall of the feeding box 7 on two sides of the sliding direction of the material pushing plate 11, and the two ends of the material pushing plate 11 are nested in the sliding grooves 8 in a sliding mode, so that the material pushing plate 11 is guided in a sliding mode, friction is reduced, and the material pushing plate 11 slides smoothly. The arrangement of the slag discharge port 10 can be a certain distance away from the pushing limit value of the material pushing plate 11, and impurities left on the sieve plate 9 can be manually cleaned out, which is not described herein. The two ends of the waist-shaped frame 3 can slide through the storage bin 1, so that the waist-shaped frame 3 is connected in a sliding manner.
The lower extreme intercommunication of feed bin 1 is in the one end of carrying square pipe 12, and the intercommunication department sets up to the chamfer structure to form the bent angle, avoided the sand backing to block up in the turn. The square conveyor pipe 12 can be horizontally arranged or provided with a slope, so that the transverse position is transferred, the square conveyor pipe 12 is preferably arranged on the slope, and the smoothness of conveying can be improved by using gravity. The inside transport piece that is provided with of square conveyer pipe 12, the structure can be opened at square conveyer pipe 12's top, and transport piece includes a plurality of transfer rollers 17 and switch-off plate 18. Conveying roller 17 direction of delivery rotates the upper portion that sets up at conveying side pipe 12 in proper order, and the radial fixed a plurality of switch-plates 18 that are provided with on conveying roller 17, and conveying side pipe 12 and coaxial fixedly connected with belt pulley 15 are stretched out to conveying roller 17's one end, and each belt pulley 15 is two liang carried out the transmission through belt 16 and is connected. The square conveying pipe 12 can be fixedly connected to the upright posts 14 through mounting frames 13, and the mounting frames 13 can be of a concave structure. The mounting bracket 13 is clamped at the bottom and two sides of the square conveyer pipe 12, so that the square conveyer pipe 12 can be supported and clamped, the mounting bracket 13 is fixed on the stand column 14 through screws, the mounting is convenient and quick, the problem that the mounting is blocked on the ground is avoided, the space utilization rate is improved, the three-dimensional conveying is realized, and meanwhile, the gravity utilization is realized for conveying. The square conveying pipe 12 can be fixedly connected with a cover plate, so that the impurities are prevented from entering the square conveying pipe 12 to cause pollution. The belt 16 is used for transmission to drive the belt pulley 15 to rotate, so that the conveying roller 17 and the material stirring plate 18 rotate, and the material stirring plate 18 rotates to push and stir the back sand inside the conveying square pipe 12 to be sequentially conveyed. Thereby avoided the friction between 12 inner walls of square conveyer pipe and the back sand to cause the conveying to hinder, avoided the back sand to pile up inside square conveyer pipe 12. The conveying roller 17 and the material stirring plate 18 are arranged on the upper portion of the conveying square pipe 12, and the back sand can be separated from the material stirring plate 18 through gravity, so that the back sand is prevented from remaining on the material stirring plate 18. Of course, the conveying belt may be disposed inside the square conveying pipe 12, and the conveying belt is disposed at the bottom of the square conveying pipe 12, so that when the back sand is conveyed inside the square conveying pipe 12, friction exists between the back sand and the square conveying pipe 12, which may cause transmission obstruction of the back sand.
As shown in fig. 6, a bulk material pipe 22 is communicated with the flowing end of the square conveying pipe 12, a gear ring 23 is rotatably arranged on the bulk material pipe 22, at least one scattering sheet 32 is fixedly arranged inside the gear ring 23, the bulk material pipe 22 is communicated with a hose 25, a second motor 20 is fixedly arranged on the square conveying pipe 12, and an output shaft of the second motor 20 is coaxially and fixedly connected with a worm 21 and a gear 24. A worm wheel 19 is coaxially and fixedly connected with one belt pulley 15 close to the bulk pipe 22, the worm wheel 19 is meshed with the worm 21, and a gear 24 is meshed with the gear ring 23. And starting the second motor 20, wherein the second motor 20 drives the worm 21 and the gear 24 to rotate, the worm 21 drives the worm wheel 19 to rotate, and the worm wheel 19 drives the belt pulley 15 to rotate, so that the conveying roller 17 inside the conveying square pipe 12 is rotated for conveying. As shown in fig. 6 and 7, the gear 24 drives the gear ring 23 to rotate, the gear ring 23 drives the scattering sheet 32 to rotate inside the scattering pipe 22, the back sand inside the square conveying pipe 12 is discharged from the scattering pipe 22, the back sand is accumulated inside the silo 1 and is stirred and conveyed inside the square conveying pipe 12, and the back sand may be agglomerated, which results in poor molding quality. The scattering sheets 32 rotate inside the scattering pipe 22 to scatter the back sand conveyed inside the scattering pipe 22, so that the back sand can be uniformly spread inside the sand box for molding. The rotation of the belt pulley 15 and the scattering sheet 32 is completed by a second motor 20, thereby completing the transmission and scattering, simplifying the structure of the device, saving the production and manufacturing costs and saving the energy. Through the reduction transmission of the worm wheel 19 and the worm 21, the gear ring 23 and the gear 24 are matched to realize the setting of the transmission and scattering speeds, so that the reduction transmission and the high-speed scattering are realized, the matching of the transmission and the scattering speeds is realized, and the transmission and scattering capacity is improved.
The bulk pipe 22 comprises a fixed pipe 28, a connecting frame 29 and a connecting pipe 30, the fixed pipe 28 is fixedly connected to the bottom of the square conveying pipe 12, the fixed pipe 28 and the connecting pipe 30 are of the same diameter and are coaxially and fixedly communicated through the connecting frame 29, and the gear ring 23 is rotatably arranged between the fixed pipe 28 and the connecting frame 29, so that sealed communication is formed. The connecting frame 29 may be disposed at the periphery of the ring gear 23 so as to structurally fix the fixing tube 28, the ring gear 23 and the connecting tube 30. The connecting frame 29 may be a concave structure and provided with a plurality of connecting frames, and both ends of the connecting frame 29 are fixedly connected to the outer walls of the fixing tube 28 and the connecting tube 30 and leave a rotating space of the gear ring 23. The fixed pipe 28 and the connecting pipe 30 hold the ring gear 23 and form a rotation guide. The outer wall of the square conveying pipe 12 is fixedly provided with a cover which covers the belt pulley 15, the belt 16, the worm wheel 19 and the worm 21, so that the transmission obstruction caused by the fact that sundries enter the belt 16 is avoided.
The bottom of the material dispersing pipe 22 is communicated with a hose 25, and the conveying direction and position of the back sand can be changed by holding the hose 25, so that the back sand is uniformly spread in the sand box. The bottom of the hose 25 is fixedly provided with a handle 27, and the handle 27 can facilitate the holding and changing of the bottom of the hose 25. The bottom of the hose 25 is fixedly connected with a troweling plate 26. When the back sand is transferred and received, the bottom of the hose 25 is moved, and the troweling plate 26 trowels the back sand inside the sand box. The hose 25 may be of a telescopic construction so as to vary the location of the sand production.
The embodiment of the invention provides a casting back sand conveying and feeding device, and when feeding is carried out, the recycled back sand is poured into the feeding box 7 and falls on the sieve plate 9. The first motor 6 is started in the forward direction, under the driving of the first motor 6, the first motor 6 drives the rotating shaft 5 to rotate, the incomplete gear 4 and the rotating shaft 5 rotate together, the rotating shaft 5 rotates to drive the spiral blade 31 to rotate in the reverse direction, and the spiral blade 31 does not guide materials downwards in the reverse direction. The incomplete gear 4 is alternatively meshed with the worms 21 on two sides, so that the material pushing plate 11 is pushed to slide on the sieve plate 9 in a reciprocating manner, and the back sand slides downwards under the action of gravity. The sieve plate 9 pushes the back sand to slide on the sieve plate 9, and the back sand passes through the sieve plate 9, enters the feeding box 7 and finally enters the bin 1 for storage. The impurities can not be pushed out from the slag discharge port 10 through the sieve plate 9. When not screening and carry out the guide, start first motor 6 and drive axis of rotation 5 antiport, axis of rotation 5 drives spiral leaf 31 and rotates the bottom of accomplishing the back of the body sand and carry out from feed bin 1. Because the incomplete gear 4 is of a one-way transmission structure, the incomplete gear 4 cannot rotate at the moment, and therefore material guiding without screening is completed. The second motor 20 is started to drive the worm 21 and the gear 24 to rotate, the worm 21 drives the worm wheel 19 to rotate, and the worm wheel 19 drives the belt pulley 15 to rotate, so that the conveying roller 17 rotates in the current direction inside the conveying square pipe 12 to finish the conveying of the back sand. The tail end of the conveying square pipe 12 driven by the back sand finally enters the bulk material pipe 22. The second motor 20 drives the gear 24 to rotate, so that the gear ring 23 rotates, the gear ring 23 drives the scattering sheets 32 to rotate inside the bulk material pipe 22, and the back sand inside the conveying square pipe 12 is discharged from the bulk material pipe 22. The scattering sheets 32 rotate inside the scattering pipe 22 to scatter the back sand conveyed inside the scattering pipe 22, so that the back sand can be uniformly spread inside the sand box for molding. Finally, the sand is discharged from the bottom of the hose 25 into the interior of the sand box, and after the interior of the sand box is filled, the troweling plate 26 is pushed, and the troweling plate 26 trowels the back sand inside the sand box. The back sand is pushed to slide on the sieve plate 9 in a reciprocating manner through the material pushing plate 11, and the back sand is pushed to be filtered on the sieve plate 9, so that the impurities are conveniently discharged. The forward filtering and the reverse output are completed through the first motor 6, so that the device is simple in structure, the production and manufacturing cost is reduced, and the control is convenient and fast. The conveying roller 17 and the kicker plate 18 convey the back sand in sequence. Thereby avoided the friction between 12 inner walls of square conveyer pipe and the back sand to cause the conveying to hinder, avoided the back sand to pile up inside square conveyer pipe 12. The conveying roller 17 and the material stirring plate 18 are arranged on the upper portion of the conveying square pipe 12, and the back sand can be separated from the material stirring plate 18 through gravity, so that the back sand is prevented from remaining on the material stirring plate 18. The scattering sheets 32 rotate inside the scattering pipe 22 to scatter the back sand conveyed inside the scattering pipe 22, so that the back sand can be uniformly spread inside the sand box for molding. The rotation of the belt pulley 15 and the scattering sheet 32 is completed by a second motor 20, thereby completing the transmission and scattering, simplifying the structure of the device, saving the production and manufacturing costs and saving the energy. Through the reduction transmission of the worm wheel 19 and the worm 21, the gear ring 23 and the gear 24 are matched to realize the setting of the transmission and scattering speeds, so that the reduction transmission and the high-speed scattering are realized, the matching of the transmission and the scattering speeds is realized, and the transmission and scattering capacity is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a back sand is carried loading attachment for casting which characterized in that, back sand is carried loading attachment for casting includes:
the bin is internally used for containing back sand, a rotating shaft is rotatably arranged in the bin, the bottom of the rotating shaft is fixedly connected with a spiral blade, and the spiral blade is rotatably nested at the bottom of the bin;
the first motor is fixedly connected to the bin through a support frame, an output shaft of the first motor is coaxially and fixedly connected with the top of the rotating shaft, the rotating shaft is coaxially connected with an incomplete gear which rotates in a single direction, the bin is slidably provided with a waist-shaped frame, racks are arranged on two sides of the inner wall of the waist-shaped frame, and the incomplete gear is nested in the waist-shaped frame;
the feeding box is obliquely and fixedly communicated with the storage bin, the sieve plate is obliquely and fixedly arranged inside the feeding box, a slag discharge port is formed in the end part, away from the storage bin, of the feeding box, a material pushing plate is placed on the sieve plate, and the material pushing plate is rotationally connected with the oval frame;
when feeding is carried out, the recycled back sand is poured into the feeding box, the first motor drives the incomplete gear and the rotating shaft to rotate in the forward direction, the rotating shaft rotates to drive the spiral blades to rotate in the reverse direction without guiding, the incomplete gear is alternately meshed with the racks on two sides, and the material pushing plate is pushed to slide on the sieve plate in a reciprocating manner to carry out sieving; when the screening is not carried out and the material is guided, a motor drives the rotating shaft to rotate reversely to enable the spiral blades to rotate to finish the back sand conveying, and the incomplete gear cannot rotate and is not screened;
the lower end of the bin is communicated with one end of a conveying square pipe, a conveying piece is arranged inside the conveying square pipe, the flowing tail end of the conveying square pipe is communicated with a material scattering pipe, a gear ring is rotatably arranged on the material scattering pipe, at least one scattering sheet is fixedly arranged inside the gear ring, the material scattering pipe is communicated with a hose, a second motor is fixedly arranged on the conveying square pipe, an output shaft of the second motor is coaxially and fixedly connected with a gear, and the gear is meshed with the gear ring; the second motor drives the gear and enables the ring to rotate, and the gear drives the scattering pieces to rotate in the bulk material pipe to scatter the back sand conveyed in the bulk material pipe.
2. The casting-use back sand conveying and feeding device according to claim 1, wherein the conveying piece comprises a plurality of conveying rollers and a plurality of shifting plates, the conveying directions of the conveying rollers are sequentially and rotatably arranged on the upper portion of the conveying square pipe, the plurality of shifting plates are radially and fixedly arranged on the conveying rollers, one ends of the conveying rollers extend out of the conveying square pipe and are coaxially and fixedly connected with belt pulleys, and every two belt pulleys are in transmission connection through a belt; the coaxial fixedly connected with worm of output shaft of second motor, the coaxial fixedly connected with worm wheel of a belt pulley that is close to the bulk material pipe, the worm wheel meshes with the worm, and the second motor drives worm and gear revolve, and the worm drives the worm wheel and rotates, and the worm wheel drives the belt pulley and rotates and accomplish the inside transfer roller rotation of delivery side and carry out the conveying.
3. The casting-use back sand conveying and feeding device according to claim 1, wherein the conveying square pipe is fixedly connected to the upright post through a mounting frame.
4. The casting-use back sand conveying and feeding device according to claim 3, wherein the mounting frame is of a concave structure and is clamped at the bottom and two sides of the conveying square pipe.
5. The casting-use back sand conveying and feeding device according to claim 1, wherein a cover plate is fixedly connected to the conveying square pipe.
6. The casting back sand conveying and feeding device as claimed in claim 1, wherein sliding grooves are formed in the inner wall of the feeding box on two sides of the pushing plate in the sliding direction, and two ends of the pushing plate are slidably nested in the sliding grooves.
7. The casting-use back sand conveying and feeding device according to any one of claims 1 to 6, wherein the bulk pipe comprises a fixed pipe, a connecting frame and a connecting pipe, the fixed pipe is fixedly connected to the bottom of the square conveying pipe, the fixed pipe and the connecting pipe are of the same diameter and are coaxially and fixedly communicated through the connecting frame, and the gear ring is rotatably arranged between the fixed pipe and the connecting frame.
8. The casting-use back sand conveying and feeding device as claimed in claim 7, wherein the connecting frame is of a concave structure, and two ends of the connecting frame are fixedly connected to the outer walls of the fixed pipe and the connecting pipe and leave a rotating space of the gear ring.
9. The foundry sand-backing conveying and feeding device of claim 1, wherein a handle is fixedly arranged at the bottom of the hose.
10. The casting back sand conveying and feeding device as claimed in claim 1, wherein a troweling plate is fixedly connected to the bottom of the hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110771932.6A CN113600744B (en) | 2021-07-08 | 2021-07-08 | Back sand conveying and feeding device for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110771932.6A CN113600744B (en) | 2021-07-08 | 2021-07-08 | Back sand conveying and feeding device for casting |
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Cited By (1)
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| CN115007802A (en) * | 2022-06-14 | 2022-09-06 | 浙江机电职业技术学院 | Efficient automatic sand feeding device for cast 3D printer |
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| CN113600744B (en) | 2023-04-28 |
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