CN111957902B

CN111957902B - Core making machine

Info

Publication number: CN111957902B
Application number: CN202010933105.8A
Authority: CN
Inventors: 莫贻贵; 柳玉川; 訾陆坤; 柳嵩
Original assignee: Jinan Liuyuxin Machinery Equipment Co ltd
Current assignee: Jinan Liuyuxin Machinery Equipment Co ltd
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2022-01-25
Anticipated expiration: 2040-09-08
Also published as: CN111957902A

Abstract

The application relates to a core making machine, it still includes the working disc including the mould body that has the notes sand mouth and the board of blowing, and the connection can be dismantled on the working disc to the mould body, and the board lid of blowing is established in the notes sand mouth department of mould body, and one side of working disc is provided with the notes sand device that is used for annotating the sand in the mould body, and the opposite side of working disc is provided with and is used for carrying out the hoisting device that promotes to the board of blowing. This application is through setting up the mould body, the board blows, the working disc, annotate sand device and hoisting device, have when using the core making machine, sand device is annotated in the elder generation operation, make and annotate sand device and annotate the mould body sand, when resin sand in the mould body is annotated fully, stop annotating sand device work, then operation hoisting device, hoisting device promotes the board of blowing, and then the board of blowing is covered and is established the notes sand mouth department at the mould body under hoisting device's effect, finally reach the purpose that makes things convenient for the staff to operate the core making machine, and then realize improving the effect of core making machine core making efficiency.

Description

Core making machine

Technical Field

The application relates to the technical field of casting mold manufacturing, in particular to a core making machine.

Background

The nodular cast iron pipe is a pipe which is formed by adding nodulizer into cast molten iron above 18 and centrifugally casting the molten iron at high speed by a centrifugal nodular cast iron machine, is mainly used for conveying tap water and is an ideal selected material for tap water pipelines. The interface forms of the nodular cast iron pipe are divided into T type, K type, N1 type and S type, and core sand is needed to be used for auxiliary forming of the T type interface of the nodular cast iron pipe in the process of manufacturing the nodular cast iron pipe with the T type interface. In the process of manufacturing the core sand, a core making machine is needed to shape the resin sand mixed by the sand mixer.

In the prior art, the core making machine comprises a base, a mold body with a sand injection port and a blowing plate, wherein the mold body is fixedly arranged on the base, and the blowing plate is covered at the sand injection port of the mold body. When the core sand is manufactured by using the core making machine, workers are required to move the air blowing plate away, then resin sand is injected into the mold body through the sand injection port, the air blowing plate is covered at the sand injection port of the mold body, the resin sand in the mold body is compacted, and finally triethylamine gas is injected into the mold body, so that the rapid setting of the resin sand is accelerated, and the desired core sand is finally obtained.

In view of the above-mentioned related art, the inventor believes that in the process of manufacturing core sand by using a core making machine, a worker is required to carry a blowing plate and manually inject resin sand into a mold body, and further, the worker is inconvenient to operate, resulting in the defect that the core making efficiency of the core making machine is low.

Disclosure of Invention

In order to solve the problem of core making inefficiency of core making machine, this application provides a core making machine.

The core making machine provided by the application adopts the following technical scheme:

the utility model provides a core making machine, includes the mould body that has the notes sand mouth and blows the board, still includes the working disc, the connection can be dismantled on the working disc to the mould body, it establishes in the notes sand mouth department of mould body to blow the board lid, one side of working disc is provided with the notes sand device that is used for annotating the sand in the mould body, the opposite side of working disc is provided with and is used for carrying out the hoisting device that promotes to blowing the board.

Through adopting above-mentioned technical scheme, when using the core making machine, earlier operation is annotated sand device, make then to annotate sand device and annotate the sand to the mould body, when the resin sand in the mould body is annotated fully, stop annotate sand device work, then operate hoisting device, make hoisting device promote the board of blowing, and then make the board of blowing cover under hoisting device's effect and establish the notes sand mouth department at the mould body, finally reach the purpose that makes things convenient for the staff to operate the core making machine, and then realize improving the effect of core making machine core making efficiency.

Preferably, the die body comprises a core box and a core shaft, the core shaft is positioned in the core box, a sand containing cavity corresponding to the shape of core sand is formed between the core box and the core shaft, the core box is detachably connected with the working disc, and the core shaft is connected with the working disc in a sliding mode along the direction close to or far away from the working disc.

Through adopting above-mentioned technical scheme, the resin sand promotes the dabber after holding the shaping of sand chamber for core sand, makes relative slip take place between dabber and the working disc, makes dabber and core sand separation simultaneously, and then reaches and makes things convenient for the staff to separate core sand and dabber, finally reaches the purpose that improves staff work efficiency.

Preferably, the working disc comprises two half discs, the core box comprises two half moulds, one half mould is detachably connected with one half disc, the other half mould is detachably connected with the other half disc, a rotary disc is arranged on one side of the working disc, which is far away from the core box, and the two half discs are slidably connected with the rotary disc along the directions close to or far away from each other.

Through adopting above-mentioned technical scheme, after the resin sand is the core sand in holding the sand chamber shaping, then promote the dabber, make dabber and core sand separation simultaneously, promote two half dishes again for two half dishes drive two half moulds and slide towards the direction of keeping away from each other, then make two half dishes and carousel take place relative slip, thereby make core sand and core box separation, and then realize the separation of psammitolite and mould, finally reach the purpose that makes things convenient for the staff to separate psammitolite and mould body.

Preferably, be provided with two sets of direction subassemblies that are used for leading two halves dish motion on the carousel, it is two sets of direction subassembly sets up with two halves dish one-to-one respectively, every group the direction subassembly all includes guide post and guide block, the side fixed connection that guide block and half dish deviate from the core box, the guide post is on a parallel with the slip direction setting of half dish, just guide post and carousel fixed connection, and the guide block is worn out to the guide post.

Through adopting above-mentioned technical scheme, when the staff drives two halves dish, two halves dish orientation move towards the direction of keeping away from each other, make the guide block on the two halves dish and the guide post on the carousel take place the relative slip simultaneously, and then reach the effect that the guide post guided to the motion of two halves dish, stability when increasing two halves dish and carousel and taking place the relative slip.

Preferably, it is used for carrying out the supporting component that supports to two halves dish, two sets of to set up on the carousel two sets of supporting component respectively with two halves dish one-to-one setting, every group the supporting component all includes many tracks and a plurality of wheels that roll, many the track all is on a parallel with the slip direction setting of half dish and with carousel fixed connection, it is a plurality of the wheel that rolls rotates with half dish to be connected, just roll wheel and track roll connection, and one the track corresponds a plurality of wheel settings that roll.

Through adopting above-mentioned technical scheme, when the staff promoted two half moulds, two half moulds drive on one's body respectively and rotate the roll wheel of being connected and take place relative roll with the track, roll the wheel and can play the effect of supporting half dish on the one hand, and then lead to the damage to the guide post because of the gravity of half dish is great, on the other hand roll wheel and track can further lead to the motion of half dish, reduce the half mould because of the atress uneven and the half dish between produce the phenomenon of distortion and take place.

Preferably, annotate sand device includes screw conveyer and base, the one end that self discharge gate was kept away from to screw conveyer rotates with the base to be connected, the top of screw conveyer feed inlet is provided with the feeding mechanism who is used for the screw conveyer feed, and axis of rotation between screw conveyer and the base sets up with screw conveyer's feed inlet central point collineation.

Through adopting above-mentioned technical scheme, when annotating sand in holding the sand chamber, rotate screw conveyer, make simultaneously to take place relative rotation between screw conveyer and the base, make screw conveyer's discharge gate be located directly over annotating the sand mouth then, operation feed mechanism and screw conveyer for feed mechanism supplies the screw conveyer with the resin sand in, thereby make screw conveyer carry the resin sand to holding in the sand chamber, finally reach the purpose that reduces staff's work load.

Preferably, one side that the carousel deviates from the dabber is provided with the supporting seat, the carousel rotates with the supporting seat to be connected.

Through adopting above-mentioned technical scheme, when aim at injection sand mouth department with screw conveyer's discharge gate for screw conveyer transports resin sand to holding in the sand chamber, then rotates the carousel, makes carousel and supporting seat take place relative rotation simultaneously, thereby makes injection sand mouth and screw conveyer's feed opening take place relative rotation, and then makes screw conveyer hold the sand chamber with the even injection of resin sand, finally reaches the purpose that further reduces staff's work load.

Preferably, be provided with on the supporting seat and be used for carrying out driven first drive assembly to the carousel, first drive assembly includes gear and driving motor, the gear sets up between carousel and supporting seat, the both ends face of gear rotates with carousel fixed connection and supporting seat respectively and is connected, just the axis of gear sets up with the central point collineation of carousel, driving motor and supporting seat fixed connection, and driving motor is connected with gear drive.

Through adopting above-mentioned technical scheme, when annotating the sand device and annotating sand to holding the sand chamber, start driving motor for driving motor drives the gear and rotates, makes the gear drive carousel rotate simultaneously, makes then to take place relative rotation between carousel and the supporting seat, finally reaches the automatic pivoted effect of carousel, further reduces staff's work load.

Preferably, the turntable is provided with a second driving assembly for driving the two half discs and a third driving assembly for driving the mandrel.

Through adopting above-mentioned technical scheme, use resin sand behind the shaping core sand of holding in the sand cavity, start the third drive assembly, make the third drive assembly drive the dabber simultaneously, then make dabber and psammitolite separation, then start the second drive assembly, make the second drive assembly drive two half dishes, and then make two half dishes drive the direction motion that two half moulds kept away from each other, thereby make two half moulds and psammitolite separation, and then reduce the drive of staff to dabber and two half dishes, finally reach the purpose that reduces staff's work load.

Preferably, hoisting device includes frame and coupling assembling, coupling assembling follows vertical direction and frame sliding connection, the one end that coupling assembling kept away from the frame is articulated with the central point position of blowing the board.

Through adopting above-mentioned technical scheme, after the resin sand shaping is the psammitolite in holding the sand chamber, promote coupling assembling for coupling assembling and frame take place relative slip, make coupling assembling drive the board of blowing and the separation of mould body simultaneously, and then reduce the transport of staff to the board of blowing, finally reach the effect that reduces staff's work load.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the mold body, the air blowing plate, the working disc, the sand injection device and the lifting device, when the core making machine is used, the sand injection device is operated firstly, then the sand injection device injects sand into the mold body, when resin sand in the mold body is fully injected, the sand injection device stops working, then the lifting device is operated, the lifting device is used for lifting the air blowing plate, further the air blowing plate is covered at the sand injection port of the mold body under the action of the lifting device, and finally the purpose of facilitating the operation of a worker on the core making machine is achieved, so that the core making efficiency of the core making machine is improved;

2. by arranging the core box, the mandrel and the sand containing cavity, after the resin sand is formed into core sand in the sand containing cavity, the mandrel is pushed, so that the mandrel and the working plate slide relatively, and the mandrel is separated from the core sand, so that the core sand is conveniently separated from the mandrel by a worker, and the purpose of improving the working efficiency of the worker is finally achieved;

3. through setting up two half plates, two half moulds and carousel, after the resin sand is the core sand in holding the sand chamber shaping, then promote the dabber, make dabber and core sand separation simultaneously, promote two half plates again, make two half plates drive two half moulds and slide towards the direction of keeping away from each other, then make two half plates and carousel take place relative slip, thereby make core sand and core box separation, and then realize the separation of psammitolite and mould, finally reach the purpose that makes things convenient for the staff to separate psammitolite and mould body.

Drawings

FIG. 1 is a schematic of the mechanism of the present application;

FIG. 2 is a partial structural schematic view of the present application (containing the sand core), showing primarily the locating seats;

FIG. 3 is a partial structural schematic of the present application, showing primarily a third hydraulic cylinder;

FIG. 4 is a schematic structural view of the sand injection device;

FIG. 5 is a cross-sectional view A-A of FIG. 1, primarily illustrating the connecting tube;

FIG. 6 is an enlarged view of portion A of FIG. 2;

FIG. 7 is a schematic view of the construction of the lifting device;

fig. 8 is an enlarged view of a portion B in fig. 5.

Description of reference numerals: 100. a mold body; 110. a core box; 111. a half mold; 120. a mandrel; 121. a sand containing cavity; 122. a third hydraulic cylinder; 123. a guide tube; 200. a blowing plate; 300. a working plate; 310. half disc; 311. a second hydraulic cylinder; 312. a T-shaped groove; 313. a flat head bolt; 314. a nut; 315. a supporting seat; 316. a gear; 317. a drive motor; 320. a turntable; 321. positioning seats; 322. positioning a rod; 323. a ring plate; 324. a connector; 325. a blowing head; 326. a connecting pipe; 330. a guide assembly; 331. a guide post; 332. a guide block; 340. a support assembly; 341. a rolling wheel; 342. a track; 400. a sand injection device; 410. a screw conveyor; 411. cleaning the opening; 412. a blocking sheet; 420. a base; 430. a sand supply mechanism; 431. a storage hopper; 432. a discharging pipe; 433. a control component; 434. a control sheet; 435. a first hydraulic cylinder; 436. a gantry; 440. a locking assembly; 441. a lock lever; 442. a lock nut; 443. a locking piece; 500. a lifting device; 510. a frame; 511. a fixing plate; 512. a support pillar; 513. a reinforcement column; 514. an auxiliary plate; 515. a fourth hydraulic cylinder; 516. a wear plate; 520. a connecting assembly; 521. connecting sheets; 522. a bolt pair; 523. supporting a tube; 524. a driving plate; 525. a wheel; 526. a fifth hydraulic cylinder; 527. a drive rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses a core making machine.

Referring to fig. 1, a core making machine includes a mold body 100 having a sand injection port and a blow plate 200, and further includes a work plate 300 having a ring shape, and the mold body 100 is detachably coupled to the work plate 300. The blowing plate 200 is covered at a sand injection port of the mold body 100, a sand injection device 400 for injecting sand into the mold body 100 is installed at one side of the working plate 300, and a lifting device 500 for lifting the blowing plate 200 is installed at the other side of the working plate 300. When using the core making machine, operate sand injection device 400 earlier for sand injection device 400 pours into the resin sand into mould body 100 through the sand injection mouth into, then operate hoisting device 500, make hoisting device 500 will blow board 200 lid and establish in the sand injection mouth department of mould body 100, finally reach the effect that makes things convenient for the staff to operate the core making machine, improve the core making efficiency of core making machine.

Referring to fig. 2, in order to facilitate the separation of the sand core from the mold body 100, the mold body 100 includes a core box 110 and a mandrel 120, the mandrel 120 is located in the core box 110, and a sand containing cavity 121 corresponding to the shape of the core sand is formed between the core box 110 and the mandrel 120. The core box 110 is detachably connected to the work plate 300, and the spindle 120 is slidably connected to the work plate 300 in a direction approaching or departing from the work plate 300. The operating plate 300 comprises two half plates 310, the core box 110 comprises two half dies 111, one half die 111 is detachably connected with one half plate 310, and the other half die 111 is detachably connected with the other half plate 310. The side of the working plate 300 facing away from the core box 110 is provided with a rotary plate 320, and the two half plates 310 are slidably connected with the rotary plate 320 along the directions approaching to or departing from each other. After the resin sand becomes a sand core in the sand containing cavity 121, the mandrel 120 is pushed, the mandrel 120 and the half disc 310 slide relatively, the mandrel 120 is separated from the sand core, the two half dies 111 are pushed, the two half dies 111 move towards the direction away from each other, and finally the core box 110 is separated from the sand core.

In order to increase the stability when the half discs 310 and the rotating disc 320 slide relatively, two sets of guide assemblies 330 for guiding the movement of the half discs 310 are installed on the rotating disc 320, and the two sets of guide assemblies 330 are respectively arranged corresponding to the half discs 310 one to one. Each group of guide assemblies 330 comprises a guide column 331 and a guide block 332, the guide block 332 is fixedly connected with the side surface of the half disc 310, which is far away from the core box 110, the guide column 331 is arranged parallel to the sliding direction of the half disc 310, the guide column 331 is fixedly connected with the rotary disc 320, and the guide column 331 penetrates out of the guide block 332. When the half disc 310 and the turntable 320 slide relatively, the guide block 332 and the guide post 331 slide relatively, so that the guide post 331 guides the sliding of the half disc 310, and further, the stability of the half disc 310 and the turntable 320 when the half disc 310 and the turntable 320 slide relatively is ensured.

Referring to fig. 3, in order to reduce the damage to the guide column 331 caused by the gravity of the half discs 310, two sets of support assemblies 340 for supporting the two half discs 310 are mounted on the turntable 320, the two sets of support assemblies 340 are respectively arranged in one-to-one correspondence with the two half discs 310, each set of support assembly 340 includes a plurality of rails 342 and a plurality of rolling wheels 341, and the plurality of rails 342 are uniformly arranged on both sides of the guide column 331. The plurality of rails 342 are arranged parallel to the sliding direction of the half disc 310 and are fixedly connected with the turntable 320, and the rails 342 are arranged with their openings facing the half disc 310. A plurality of rolling wheels 341 are rotatably connected to the half disc 310, the rolling wheels 341 are rotatably connected to the rail 342, and a rail 342 is disposed corresponding to the plurality of rolling wheels 341. When the half disc 310 and the turntable 320 slide relatively, the rolling wheel 341 rolls relative to the rail 342, and the rolling wheel 341 can bear the gravity of the half disc 310, thereby reducing the damage to the guide post 331 caused by the gravity of the half disc 310.

Referring to fig. 4, in order to realize automatic sand injection to the yarn accommodating cavity, the sand injection device 400 comprises a screw conveyor 410 and a base 420, wherein one end of the screw conveyor 410, which is far away from the discharge hole of the screw conveyor, is rotatably connected with the base 420, a feeding mechanism for feeding the screw conveyor 410 is installed at the top of the feed hole of the screw conveyor 410, and the rotating axis between the screw conveyor 410 and the base 420 is arranged in a collinear way with the central point of the feed hole of the screw conveyor 410. The sand supply mechanism 430 includes a storage hopper 431 and a discharge pipe 432, the storage hopper 431 is fixedly connected with the superstructure of the factory, and the discharge pipe 432 is arranged to communicate with one end of the storage hopper 431 near the screw conveyor 410. The blanking pipe 432 is provided with a control component 433 for controlling the blanking of the blanking pipe 432, the control component 433 comprises a control sheet 434 and a first hydraulic cylinder 435, the control sheet 434 is connected with the blanking pipe 432 in a sliding manner along the length direction perpendicular to the blanking pipe 432, and one end of the control sheet 434 penetrates into the blanking pipe 432. The feeding pipe 432 is provided with a portal frame 436, an opening of the portal frame 436 is fixedly connected with two opposite sides of the feeding pipe 432, and a space for the control sheet 434 to slide is formed between the portal frame 436 and the feeding pipe 432. The cylinder body of the first hydraulic cylinder 435 is fixedly connected with one end of the portal frame 436 far away from the blanking pipe 432, and the piston rod of the first hydraulic cylinder 435 penetrates into a space formed by the portal frame 436 and blanking and is hinged with the control sheet 434.

When the sand injection device 400 supplies sand to the sand accommodating cavity 121, the screw conveyor 410 is rotated, and meanwhile, the discharge opening of the screw conveyor 410 is positioned right above the sand injection opening. Then, the first hydraulic cylinder 435 is activated, so that the first hydraulic cylinder 435 drives the control piece 434, so that the control piece 434 and the blanking pipe 432 slide relatively, and the resin sand in the storage hopper 431 directly enters the screw conveyor 410 through the blanking pipe 432, and finally the screw conveyor 410 transports the resin sand into the sand accommodating chamber 121.

In order to facilitate cleaning of the screw conveyor 410 by workers, a plurality of cleaning openings 411 are formed in the outer wall of the screw conveyor 410, a plurality of blocking pieces 412 are mounted on the outer wall of the screw conveyor 410 through locking assemblies 440, and the blocking pieces 412 and the cleaning openings 411 are arranged in a one-to-one correspondence manner. The locking assembly 440 includes a plurality of locking rods 441 and a plurality of locking pieces 443 having an L-shape, and the plurality of locking pieces 443 and the plurality of locking rods 441 are arranged in one-to-one correspondence. The plurality of locking rods 441 are uniformly arranged on two opposite sides of the blocking piece 412, the locking rods 441 are vertically and fixedly connected with the outer wall of the spiral conveyor 410, one end, away from the spiral conveyor 410, of each locking rod 441 penetrates through the locking piece 443, one ends, away from the spiral conveyor 410, of the plurality of locking rods 441 are in threaded connection with locking nuts 442, and the locking nuts 442 are abutted to the corresponding locking pieces 443. The corner of the L-shaped locking piece 443 is arranged toward the screw conveyor 410, and the plurality of locking pieces 443 abut against the stopper piece 412.

When the staff need clear up the inside of screw conveyer 410, twist lock nut 442 for locking piece 443 and the clearance that has movablely between blocking the piece 412, then slide and block piece 412 or rotate locking piece 443, then make and block piece 412 and taken off, thereby make clearance mouth 411 leak, and then make things convenient for the staff to clear up the inside of screw conveyer 410. After the cleaning is completed, the blocking piece 412 is abutted against the locking piece 443, and finally the blocking piece 412 is fixed.

Referring to fig. 3, in order to increase the uniformity of the sand injection device 400 in injecting sand into the sand accommodating cavity 121, a support seat 315 is installed on one side of the rotary table 320 facing away from the mandrel 120, and the rotary table 320 is rotatably connected with the support seat 315. The support base 315 is mounted with a first driving assembly for driving the turntable 320, the first driving assembly includes a gear 316 and a driving motor 317, and the gear 316 is disposed between the turntable 320 and the support base 315. Two end faces of the gear 316 are respectively fixedly connected with the turntable 320 and rotatably connected with the supporting seat 315, and the axis of the gear 316 is arranged in a collinear way with the central point of the turntable 320. The driving motor 317 is fixedly connected with the support base 315, and the driving motor 317 is in transmission connection with the gear 316. When annotating sand device 400 and supplying sand to holding sand chamber 121, start driving motor 317 for driving motor 317 drives gear 316, makes gear 316 drive carousel 320 and supporting seat 315 to take place relative rotation simultaneously, and then makes the feed opening of holding sand chamber 121 and screw conveyer 410 take place relative rotation, finally reaches the effect of annotating sand device 400 and evenly annotating sand to holding sand chamber 121.

Referring to fig. 5, in order to reduce the workload of the worker, a second driving assembly for driving the two half discs 310 and a third driving assembly for driving the spindle 120 are installed on the turntable 320. The second driving assembly includes two second hydraulic cylinders 311, the two second hydraulic cylinders 311 are disposed corresponding to the two half discs 310, and the two second hydraulic cylinders 311 are disposed parallel to the sliding direction of the half discs 310. The cylinder bodies of the two second hydraulic cylinders 311 are hinged to the turntable 320, the piston rod of one second hydraulic cylinder 311 is hinged to the turntable 320, and the piston rod of the other second hydraulic cylinder 311 is hinged to the other plate. The third driving assembly comprises a third hydraulic cylinder 122 and a plurality of guide pipes 123, a cylinder body of the third hydraulic cylinder 122 is fixedly connected with the central point of the rotating disc 320, and a piston rod of the third hydraulic cylinder 122 penetrates through the two half discs 310 and is detachably connected with the side surface of the mandrel 120 facing the rotating disc 320. The plurality of guide pipes 123 are uniformly arranged on the peripheral side of the third hydraulic cylinder 122, one ends of the plurality of guide pipes 123 are detachably connected with the side surface of the mandrel 120 facing the rotating disc 320, and the other ends of the plurality of guide pipes 123 penetrate into the rotating disc 320 and are slidably connected with the rotating disc 320.

After the resin sand is formed into a sand core in the sand accommodating cavity 121, the third hydraulic cylinder 122 is started, so that the third hydraulic cylinder 122 drives the mandrel 120 to move towards the turntable 320, meanwhile, the guide pipe 123 and the turntable 320 slide relatively, and then the mandrel 120 is separated from the sand core. Then, the second hydraulic cylinder 311 is started, so that the second hydraulic cylinder 311 drives the half disc 310, and the half discs 310 drive the two half molds 111 to move in the direction away from each other, so that the two half molds 111 are separated from the sand core.

Referring to fig. 2 and 6, in order to facilitate the worker to replace the mold body 100, a plurality of T-shaped grooves 312 are formed in each of the two half discs 310 along the direction toward the mandrel 120, and flat-head bolts 313 are installed in each of the plurality of T-shaped grooves 312. The bolt head of the flat-head bolt 313 is abutted against the groove wall of the T-shaped groove 312, one end of the flat-head bolt 313, which is far away from the bolt head, penetrates through the T-shaped groove 312 and penetrates through the half-mold 111, the flat-head bolt 313 is connected with a nut 314 in a threaded manner, and the nut 314 is abutted against the side face, which is far away from the half-mold 310, of the half-mold 111. When the worker needs to replace the mold body 100, the nut 314 is screwed so that the nut 314 is separated from the flat-head bolt 313, and then the worker can remove the mold half 111. The mandrel 120 is then detached from the third hydraulic cylinder 122 and the guide tube 123, allowing the worker to remove the mandrel 120. Finally, the half die 111 and the mandrel 120 which need to be used are mounted, the relative position relation between the flat head bolt 313 and the T-shaped groove 312 can be adjusted according to the sizes of different die bodies 100, so that the die bodies 100 of different models can be fixed on the half disc 310, and finally, the effect of facilitating replacement of the die bodies 100 by workers is achieved.

Referring to fig. 7, in order to further reduce the workload of workers, the lifting device 500 includes a frame 510 and a connecting assembly 520, wherein the connecting assembly 520 is slidably connected to the frame 510 in a vertical direction, and one end of the connecting assembly 520 away from the frame 510 is hinged to a central point of the blowing plate 200. A fourth hydraulic cylinder 515 for driving the connecting assembly 520 is mounted on the frame 510, a cylinder body of the fourth hydraulic cylinder 515 is hinged with the frame 510, and a piston rod of the fourth hydraulic cylinder 515 is hinged with the connecting assembly 520. When the blowing plate 200 is lifted, the fourth hydraulic cylinder 515 is started, so that the fourth hydraulic cylinder 515 drives the connecting assembly 520, the connecting assembly 520 and the rack 510 slide relatively, the connecting assembly 520 drives the blowing plate 200 to move, and finally, the blowing plate 200 moves automatically.

In order to reduce the influence of the blowing plate 200 on the working of the worker, the frame 510 includes a fixing plate 511 and a supporting column 512, the fixing plate 511 is fixedly connected to the ground, the supporting column 512 is arranged perpendicular to the fixing plate 511, the supporting column 512 is rotatably connected to the fixing plate 511, and a cylinder body of the fourth hydraulic cylinder 515 is hinged to one end of the supporting column 512. A reinforcing column 513 for increasing the lateral supporting force borne by the supporting column 512 is vertically and fixedly connected to the fixing plate 511, an auxiliary plate 514 is vertically and fixedly connected to one end of the reinforcing column 513, which is far away from the fixing plate 511, and one end of the supporting column 512, which is far away from the fixing plate 511, is rotatably connected to the auxiliary plate 514. The auxiliary plate 514 is provided with a fourth driving assembly for driving the supporting column 512, the fourth driving assembly comprises a fifth hydraulic cylinder 526 and a driving rod 527, the driving rod 527 is vertically and fixedly connected with the supporting column 512, the cylinder body of the fifth hydraulic cylinder 526 is rotatably connected with the auxiliary plate 514, and the piston rod of the fifth hydraulic cylinder 526 is hinged with one end of the driving rod 527.

When the blowing plate 200 is required to be covered at the sand injection port, the fifth hydraulic cylinder 526 is started, so that the fifth hydraulic cylinder 526 drives the driving rod 527, and then the driving rod 527 drives the supporting column 512 and the fixing plate 511 to rotate relatively, so that the blowing plate 200 is positioned right above the sand injection port. Then, the fourth hydraulic cylinder 515 is activated, so that the fourth hydraulic cylinder 515 drives the connecting component 520, and the blowing plate 200 is covered on the sand injection port.

In order to increase the service life of the lifting device 500, the connecting assembly 520 includes two connecting pieces 521, and the two connecting pieces 521 are respectively disposed on two opposite sides of the supporting column 512. The two connecting pieces 521 are fixedly connected through a plurality of bolt pairs 522, a support tube 523 is sleeved on a bolt rod of each bolt pair 522, and two ends of the support tube 523 are respectively abutted to two opposite side surfaces of the two connecting pieces 521. The opposite side surfaces of the two connecting pieces 521 are fixedly connected with 7-shaped driving pieces 524, the two driving pieces 524 are arranged on the opposite sides of the piston rod of the fourth hydraulic cylinder 515, the corners of the two 7-shaped driving pieces 524 are oppositely arranged, and the piston rod of the fourth hydraulic cylinder 515 is hinged with the two driving pieces 524. One end, far away from the supporting column 512, of each connecting piece 521 is hinged to the corresponding blowing plate 200, wear-resisting plates 516 are fixedly connected to the side faces, close to and far away from the corresponding blowing plate 200, of the corresponding supporting column 512, a plurality of wheels 525 are rotatably connected to the corresponding wear-resisting plates 516 of the two connecting pieces 521, and the wheels 525 are in rolling connection with the wear-resisting plates 516.

When the fourth hydraulic cylinder 515 drives the two connecting pieces 521, the two connecting pieces 521 slide relative to the supporting column 512, so that the wheel 525 slides relative to the wear plate 516, and the friction between the two connecting pieces 521 and the supporting column 512 is reduced. The support tube 523 on the bolt pair 522 enables the distance between the two connecting pieces 521 to be larger than the column diameter of the support column 512, so that a gap is left between the opposite side surfaces of the two connecting pieces 521 and the support column 512, and the occurrence of relative friction between the opposite two sides of the two connecting pieces 521 and the support column 512 is reduced.

In order to increase the stability of the two half discs 310 during operation, the positioning seat 321 is fixedly connected to the rotating disc 320, the positioning seat 321 is located between the two half discs 310, the ends of the two half discs 310 close to each other are fixedly connected with the positioning rod 322, and the ends of the two positioning rods 322 close to each other are inserted into the positioning seat 321. When the two half discs 310 move towards the direction of approaching each other, the two positioning rods 322 are respectively inserted into the two opposite sides of the positioning seat 321, so as to reduce the phenomenon that the half discs 310 are twisted in the horizontal direction due to uneven stress on the half discs 310, and finally achieve the effect that the two half moulds 111 are tightly abutted with the seam.

Referring to fig. 5 and 8, in order to inject the triethylamine gas into the sand accommodating cavity 121, an inner hollow ring plate 323 is fixedly connected to one end of the mandrel 120 close to the rotating disc 320, a plurality of connectors 324 are arranged on one side of the ring plate 323 close to the central point of the mandrel 120 and are in hollow communication with the inner part of the ring plate 323, and the number of the connectors 324 is the same as that of the guide pipes 123. One side of the ring plate 323, which is far away from the central point of the mandrel 120, is communicated with the inside of the ring plate 323 in a hollow manner, and is provided with a plurality of blowing heads 325, the plurality of blowing heads 325 are all positioned at the bottom of the sand accommodating cavity 121, and the plurality of blowing heads 325 are communicated with the sand accommodating cavity 121. One end of the guide pipe 123 far away from the turntable 320 penetrates through the spindle 120, one end of the connecting head 324 far away from the annular plate 323 is communicated with a connecting pipe 326, and one end of the connecting pipe 326 far away from the connecting head 324 is communicated with one end of the corresponding guide pipe 123 far away from the turntable 320.

When the sand containing cavity 121 is blown, one end of the guide pipe 123 penetrating into the turntable 320 is communicated with an external gas supply device, triethylamine gas enters the hollow annular plate 323 through the guide pipe 123, the connecting pipe 326 and the connecting head 324, and the triethylamine gas entering the annular plate 323 enters the sand containing cavity 121 through the blowing head 325, so that the resin sand is rapidly shaped into the sand core in the sand containing cavity 121.

In this embodiment, the power sources of the first hydraulic cylinder 435, the second hydraulic cylinder 311, the third hydraulic cylinder 122, the fourth hydraulic cylinder 515, and the fifth hydraulic cylinder 526 are all hydraulic pumps.

The implementation principle of the core making machine in the embodiment of the application is as follows: in the core making using the core making machine, the mixed resin sand is input into the storage hopper 431, and then the screw conveyor 410 is rotated so that the discharging hopper of the screw conveyor 410 is aligned with the sand injection port of the mold body 100. The first hydraulic cylinder 435 is then actuated so that the first hydraulic cylinder 435 drives the control piece 434, and the resin sand in the storage hopper 431 is then fed into the screw conveyor 410 through the discharge pipe 432.

Simultaneously start driving motor 317 and screw conveyer 410, driving motor 317 drives carousel 320, makes carousel 320 drive under driving motor 317 and drives mould body 100 and rotate consequently to make the sand injection mouth of mould body 100 and the feed opening of screw conveyer 410 rotate relatively. The screw conveyor 410 transports the resin sand falling into the interior thereof, and then the resin sand is made to fall into the sand accommodating chamber 121 at the discharge port of the screw conveyor 410.

After the sand accommodating cavity 121 is filled with resin sand, the fifth hydraulic cylinder 526 is started, and then the fifth hydraulic cylinder 526 drives the supporting column 512, so that the blowing plate 200 is located right above the sand injection port of the mold body 100. And then, the fifth hydraulic cylinder 526 is started, so that the fifth hydraulic cylinder 526 drives the two connecting pieces 521, and the blowing plate 200 is covered at the sand injection port of the mold body 100.

And finally, communicating an external gas supply device with the guide pipe 123, so that triethylamine gas enters the hollow annular plate 323 through the guide pipe 123, the connecting pipe 326 and the connecting head 324, and then the triethylamine gas entering the annular plate 323 enters the sand accommodating cavity 121 through the gas blowing head 325, so that the resin sand is quickly shaped into the sand core in the sand accommodating cavity 121.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A core making machine characterized by: the sand injection mold comprises a mold body (100) with a sand injection port, a blowing plate (200) and a working disc (300), wherein the mold body (100) is detachably connected to the working disc (300), the blowing plate (200) is covered at the sand injection port of the mold body (100), one side of the working disc (300) is provided with a sand injection device (400) for injecting sand into the mold body (100), and the other side of the working disc (300) is provided with a lifting device (500) for lifting the blowing plate (200); the die body (100) comprises a core box (110) and a mandrel (120), the mandrel (120) is positioned in the core box (110), a sand containing cavity (121) corresponding to the shape of core sand is formed between the core box (110) and the mandrel (120), the core box (110) is detachably connected with the working disc (300), and the mandrel (120) is connected with the working disc (300) in a sliding manner along the direction close to or far away from the working disc (300); a turntable (320) is arranged on one side of the working disc (300) departing from the core box (110); mandrel (120) are close to inside hollow ring board (323) of one end fixedly connected with of carousel (320), one side that ring board (323) are close to mould body (100) central point and the inside cavity intercommunication of ring board (323) have arranged a plurality of connectors (324), a plurality of gas blowing heads (325) have been arranged to the inside cavity intercommunication of ring board (323), gas blowing heads (325) are used for blowing to mould body (100), and connecting pipe (326) have been arranged to the one end intercommunication that ring board (323) were kept away from in connector (324).

2. Core making machine as claimed in claim 1, characterized in that: the working plate (300) comprises two half plates (310), the core box (110) comprises two half dies (111), one half die (111) is detachably connected with one half plate (310), the other half die (111) is detachably connected with the other half plate (310), and the two half plates (310) are in sliding connection with the rotating plate (320) along the directions close to or far away from each other.

3. Core making machine as claimed in claim 2, characterized in that: be provided with two sets of direction subassembly (330) that are used for leading two half dishes (310) motion on carousel (320), two sets of direction subassembly (330) set up with two half dishes (310) one-to-one respectively, every group direction subassembly (330) all include guide post (331) and guide block (332), guide block (332) and half dish (310) deviate from the side fixed connection of core box (110), guide post (331) are on a parallel with the slip direction setting of half dish (310), just guide post (331) and carousel (320) fixed connection, and guide block (332) are worn out in guide post (331).

4. Core making machine as claimed in claim 2, characterized in that: set up two sets of supporting component (340) that are used for carrying out the support to two half dishes (310) on carousel (320), two sets of supporting component (340) set up with two half dishes (310) one-to-one respectively, every group supporting component (340) all include many track (342) and a plurality of rolling wheel (341), many track (342) all are on a parallel with the slip direction setting of half dish (310) and with carousel (320) fixed connection, it is a plurality of rolling wheel (341) are rotated with half dish (310) and are connected, just rolling wheel (341) and track (342) roll connection, and one track (342) correspond a plurality of rolling wheel (341) and set up.

5. Core making machine as claimed in claim 1, characterized in that: annotate sand device (400) including screw conveyer (410) and base (420), the one end that self discharge gate was kept away from in screw conveyer (410) is rotated with base (420) and is connected, the top of screw conveyer (410) feed inlet is provided with the feed mechanism who is used for the feed to screw conveyer (410), and the axis of rotation between screw conveyer (410) and base (420) sets up with the feed inlet central point collineation of screw conveyer (410).

6. Core making machine as claimed in claim 4 or 5, characterized in that: one side that carousel (320) deviates from dabber (120) is provided with supporting seat (315), carousel (320) and supporting seat (315) rotate to be connected.

7. Core making machine according to claim 6, characterized in that: be provided with on supporting seat (315) and be used for carrying out the first drive assembly of driven to carousel (320), first drive assembly includes gear (316) and driving motor (317), gear (316) set up between carousel (320) and supporting seat (315), the both ends face of gear (316) rotates with carousel (320) fixed connection and supporting seat (315) respectively and is connected, just the axis of gear (316) sets up with the central point collineation of carousel (320), driving motor (317) and supporting seat (315) fixed connection, and driving motor (317) are connected with gear (316) transmission.

8. Core making machine as claimed in claim 2, characterized in that: the turntable (320) is provided with a second driving assembly for driving the two half discs (310) and a third driving assembly for driving the mandrel (120).

9. Core making machine as claimed in claim 1, characterized in that: the lifting device (500) comprises a rack (510) and a connecting assembly (520), wherein the connecting assembly (520) is connected with the rack (510) in a sliding mode along the vertical direction, and one end, far away from the rack (510), of the connecting assembly (520) is hinged to the central point of the blowing plate (200).