CN114700468A

CN114700468A - Automatic manufacturing equipment for composite sand mold for cast iron

Info

Publication number: CN114700468A
Application number: CN202210348235.4A
Authority: CN
Inventors: 朱兴丰
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-07-05

Abstract

The invention discloses automatic manufacturing equipment of a composite sand mold for cast iron, which comprises an equipment base and a composite sand box, wherein the composite sand box is fixedly connected with the top of the equipment base through a stand column and a reinforcing rod, the reinforcing rod is fixedly connected with a control box, the outer wall of the control box is fixedly connected with a touch screen, a controller, a memory, a power supply and a communication module are arranged in the control box, one end of the equipment base is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a screw rod, the top of the equipment base is provided with a mounting groove corresponding to the screw rod, one end of the screw rod, which is positioned in the mounting groove, is sheathed with a slide block through threads, and the top of the slide block is fixedly connected with a placing plate. According to the invention, through the arrangement of the automatic control mechanism, the device can automatically treat sand materials, and meanwhile, the arrangement of the sliding support mechanism can facilitate the horizontal movement of the manufacturing mold and the filling of mixed resin sand materials, so that the manufacturing efficiency of the composite sand mold is improved.

Description

Automatic manufacturing equipment for composite sand mold for cast iron

Technical Field

The invention relates to the technical field of casting equipment, in particular to automatic manufacturing equipment for a composite sand mold for cast iron.

Background

The molding sand can be divided into surface sand, filling sand, single sand and the like. The facing sand is a layer of molding sand tightly attached to a casting, and the quality requirement is high. The filled sand is not contacted with molten metal after being arranged on the surface sand layer, and the quality requirement is not strict. The single sand is molding sand without surface sand and back sand, and is mainly used for machine molding. In addition, the sand mold of the large casting is usually dried and then poured, and the used molding sand contains more clay, which is called dry mold sand; the molding sand used by the wet-type pouring method is less in clay content and is called wet-type sand. The high-chromium cast iron has a wide application range, such as products of wear-resistant lining plates, pump liners, impellers, three-way pipes and the like, and the parts are generally consumables which need to be replaced in time after being used for a certain time. Such materials also have a high carbon content of iron and contain very high alloying elements due to the great shrinkage of steel.

Industrially, a molding machine is used for manufacturing a sand mold, and loose molding sand is filled into a sand box; compacting the molding sand, namely compacting the loose molding sand in the sand box by different methods such as jolt ramming, compaction, jolt ramming, injection pressing and the like, so that the sand mould has necessary strength in the processes of carrying, pouring and the like; and (4) stripping, namely taking out the pattern from the compacted sand mold by using different mechanisms. In the casting process, the sand material mixes in original molding machine sand mould and mainly relies on the manual work to accomplish, because on-the-spot operational environment is very abominable, the dust is big, and the temperature is high, and machine running speed is fast, along with the improvement that the workman required work environment and the enterprise required improvement to the degree of automation, the improvement to work efficiency requirement, the manual handling can not satisfy the manufacturing requirement yet.

But current composite sand mould manufacturing installation is comparatively simple, and the device lacks automation mechanized operation, and the equipment outside lacks and installs the control mechanism who adjusts to making to influence the availability factor and the molding sand production efficiency of manufacture equipment, the final production quality who influences the molding sand.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, automation of a composite sand mold manufacturing device is not realized, the operation between a sand filling mold and sand mixing is not smooth and inconsistent, and the matching between machines is not reasonable, so that the use efficiency and the molding sand production efficiency of manufacturing equipment are influenced, and the production quality of molding sand is finally influenced.

In order to achieve the purpose, the invention adopts the following technical scheme: the equipment sequentially carries out automatic composite sand material and mold sand filling to form a composite sand mold and comprises an equipment base and a composite sand box, wherein the composite sand box is fixedly connected with the top of the equipment base through a stand column and a reinforcing rod, a control box is fixedly connected onto the reinforcing rod, a touch screen is fixedly connected onto the outer wall of the control box, a controller, a memory, a power supply and a communication module are arranged in the control box, one end of the equipment base is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a screw rod, a mounting groove corresponding to the screw rod is formed in the top of the equipment base, a sliding block is sleeved on one end of the screw rod, which is located in the mounting groove, in a threaded manner, the top of the sliding block is fixedly connected with a placing plate, and a placing groove is formed in the top of the placing plate;

the top of the composite sand box is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a rotating rod, the bottom of the rotating rod penetrates through the outer wall of the composite sand box and extends inwards, one end of the rotating rod, which extends, is fixedly sleeved with a spiral stirring belt, the top of the composite sand box is provided with two symmetrically arranged feed inlets, and the bottom of the composite sand box is provided with a discharge outlet corresponding to the placing plate;

the composite sand box is characterized in that a baffle is slidably inserted in the discharge port, one end of the baffle penetrates through the inner wall of the discharge port and is fixedly connected with a clamping block, and a locking mechanism corresponding to the clamping block is fixedly connected to the outer wall of the composite sand box.

The output ends of the touch screen, the communication module and the power supply are connected with the input end of the controller, and the output end of the controller is connected with the input ends of the first motor, the second motor and the storage respectively.

On this basis, the bottom fixedly connected with of equipment base has a plurality of latch segments, be equipped with the latch port on the latch segment.

On the basis, the top of compound sand workbin and equipment base one end passes through anchor strut fixed connection.

On the basis, a sliding rod is fixedly connected in the mounting groove, a sliding opening corresponding to the sliding rod is formed in the sliding block, a plurality of steel balls are connected in the sliding opening in a sliding mode, and the edges of the steel balls are in contact with the sliding rod.

On this basis, be equipped with a plurality of fixed mouths on placing the inside wall of board.

On the basis, the two feeding ports are internally provided with a screen mesh in a sliding way.

On the basis, the inner bottom of the composite sand box is fixedly connected with a material guide plate corresponding to the discharge hole.

On the basis, the inner wall of the composite sand box is provided with an observation port, and a transparent glass plate is fixedly inserted in the observation port.

On the basis, the locking mechanism comprises a fixed block and a clamping rod, the clamping rod is slidably inserted into the fixed block, a clamping groove corresponding to the clamping rod is formed in the clamping block, a clamping sleeve is fixedly sleeved at one end, close to the clamping block, of the clamping rod, and a pull rod is fixedly connected at one end, far away from the clamping sleeve, of the clamping rod.

On the basis, the clamping rod is sleeved with a spring, and two ends of the spring are fixedly connected with the clamping sleeve and the fixing block respectively.

The invention relates to a manufacturing method of automatic manufacturing equipment of composite molding sand, which comprises the following steps: earlier through touch-sensitive screen input control instruction, drive first motor and second motor start, then will wait to mix resin sand material through the feed inlet and fill in compound sand workbin, the second motor drives the bull stick rotation, thereby mix the sand material through spiral stirring area, mix the back that finishes, place the mould on placing the board, first motor drives the screw rod and rotates, thereby the drive is placed the below that board 7 removed the discharge gate, then open the baffle, form the molding sand with sand material packing in mould. Of course, the sand is compacted by a compacting device which may include compressed air vibrating compacting devices, gas powered compacting devices, pressure compacting devices, vibratory compacting devices or combined pressure and vibration compacting devices, etc. as are commonly used in the art.

The invention has the following beneficial effects:

1. according to the invention, through the arrangement of the automatic control mechanism, the device can automatically process sand materials to form composite sand materials, and meanwhile, the arrangement of the sliding support mechanism can facilitate the horizontal movement of a sand mold and the filling of mixed resin sand materials, so that the manufacturing efficiency of the composite sand mold is improved;

2. according to the automatic equipment, the arrangement of the locking blocks is added, so that the equipment base can be conveniently fixed, the sliding rods can be arranged to prevent the sliding blocks from shaking, the sand can be screened due to the arrangement of the screen, the internal condition of the composite sand box can be conveniently observed due to the design of the observation port, and the sand can be conveniently led out due to the arrangement of the guide plate.

3. According to the invention, the mixed resin sand material is filled into the composite sand box through the feeding hole, a control instruction is input through the touch screen, then the controller controls the first motor and the second motor to start, the second motor drives the rotating rod to rotate, so that the sand material is mixed through the spiral stirring belt to form the mixed sand material, after the mixing is finished, the mold is placed on the placing plate, the first motor drives the screw rod to rotate, so that the placing plate is driven to move to the lower part of the discharging hole, then the baffle is opened, the sand material is filled into the mold, therefore, under the synergistic action of all the components, the operation of the molding sand equipment is smooth and continuous, the matching among machines is reasonable, the use efficiency of manufacturing equipment and the production efficiency of molding sand are rapidly improved, and the production quality of the molding sand is greatly improved finally.

Drawings

FIG. 1 is a schematic structural diagram of an automatic manufacturing apparatus for a composite sand mold for cast iron according to the present invention;

FIG. 2 is a schematic top view of the base of the automatic manufacturing equipment for composite sand molds for cast iron according to the present invention;

FIG. 3 is a schematic view of the structure at A in FIG. 1;

fig. 4 is a control system diagram of the automatic manufacturing equipment for the composite sand mold for cast iron provided by the invention.

In the figure: 1. an equipment base; 2. a composite sand box; 3. a column; 4. a first motor; 5. a screw; 6. a slider; 7. placing the plate; 8. a second motor; 9. a rotating rod; 10. a helical mixing zone; 11. a baffle plate; 12. a clamping block; 13. a locking block; 14. a reinforcing rod; 15. a slide bar; 16. steel balls; 17. screening a screen; 18. a material guide plate; 19. a transparent glass plate; 20. a fixed block; 21. a clamping rod; 22. a card sleeve; 23. a pull rod; 24. a spring; 25. a control box; 26. a touch screen; 27. a controller; 28. a memory; 29. a power source; 30. a communication module; 31. and a power supply connector.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

The invention discloses automatic manufacturing equipment of a composite sand mold for cast iron, which refers to fig. 1-4 and comprises an equipment base 1 and a composite sand box 2, wherein the bottom of the equipment base 1 is fixedly connected with a plurality of locking blocks 13, the locking blocks 13 are provided with locking ports (not shown in the figure), the equipment base 1 is conveniently fixed, the composite sand box 2 is fixedly connected with the top of one end of the equipment base 1 through a reinforcing rod 14, and the composite sand box 2 is fixedly connected with the top of the equipment base 1 through an upright post 3; as a preferred embodiment of the present invention, referring to fig. 1, one end of an apparatus base 1 is fixedly connected with an input end of a first motor 4, an output end of the first motor 4 is fixedly connected with a screw 5, the first motor 4 is used for driving the screw 5 to rotate, the screw 5 is used for driving a slider 6 to slide, referring to fig. 1, a mounting groove corresponding to the screw 5 is arranged at the top of the apparatus base 1, one end of the screw 5 located in the mounting groove is in threaded sleeve connection with the slider 6, a slide rod 15 is fixedly connected in the mounting groove, the slider 6 is used for supporting a placing plate 7, the slide rod 15 is used for supporting the slider 6, a slide opening corresponding to the slide rod 15 is arranged on the slider 6, a plurality of steel balls 16 are slidably connected in the slide opening, the edges of the steel balls 16 are in contact with the slide rod 15 to reduce friction between the slide rod 15 and the inner wall of the slide opening, the placing plate 7 is fixedly connected at the top of the slider 6, the placing groove is arranged at the top of the placing plate 7, place and be equipped with a plurality of fixed mouths on the inside wall of board 7, conveniently fix the mould.

As a preferred embodiment of the invention, an observation port is arranged on the inner wall of the composite sand box 2, a transparent glass plate 19 is fixedly inserted in the observation port, so that the internal condition of the composite sand box 2 can be conveniently observed, a second motor 8 is fixedly connected to the top of the composite sand box 2, a rotating rod 9 is fixedly connected to the output end of the second motor 8, the bottom of the rotating rod 9 penetrates through the outer wall of the composite sand box 2 and extends inwards, a spiral stirring belt 10 is fixedly sleeved at the extending end of the rotating rod 9, the spiral stirring belt 10 can be driven to rotate, and the composite sand material is used for mixing the composite sand material, wherein sawdust and quartz sand are mixed to obtain sawdust resin sand; the top of compound sand workbin 2 is equipped with two feed inlets that the symmetry set up, and equal slip is inserted in two feed inlets is equipped with screen cloth 17, screens the sand material, and the bottom of compound sand workbin 2 is equipped with and places the discharge gate that board 7 corresponds, and the interior bottom fixedly connected with of compound sand workbin 2 and the stock guide 18 that the discharge gate corresponds make things convenient for the derivation of mixed sand material.

As a preferred embodiment of the invention, a baffle plate 11 is inserted in the discharge hole in a sliding manner, one end of the baffle plate 11 penetrates through the inner wall of the discharge hole and is fixedly connected with a clamping block 12, and a locking mechanism corresponding to the clamping block 12 is fixedly connected to the outer wall of the composite sand box 2, so that the baffle plate 11 is conveniently fixed. When the baffle 11 needs to be opened, the locking mechanism is separated from the fixture block 12 in a loosening mode, and when the baffle does not need to be opened, the locking mechanism is locked with the fixture block 12, so that the amount of the composite sand is effectively controlled. As a further preferable feature, in this embodiment of the present invention, referring to fig. 3, the locking mechanism of the present invention is also optimized, the locking mechanism includes a fixing block 20 and a clamping rod 21, the clamping rod 21 is slidably inserted on the fixing block 20, a clamping slot corresponding to the clamping rod 21 is provided on the clamping block 12 for fixing the clamping block 12, a clamping sleeve 22 is fixedly sleeved on one end of the clamping rod 21 close to the clamping block 12, a pull rod 23 is fixedly connected to one end of the clamping rod 21 far from the clamping sleeve 22, a spring 24 is sleeved on the clamping rod 21, and two ends of the spring 24 are respectively fixedly connected to the clamping sleeve 22 and the fixing block 20, so as to elastically support the clamping rod 21. Compared with the locking device in the prior art, the locking mechanism adopts a flexible locking mode, and compared with the locking of a bolt and a nut, the locking mechanism can be controlled by pulling and releasing the pull rod, when the pull rod is lifted upwards, the spring 24 is in a stretching state, the clamping rod 21 leaves the clamping block 12, and the state of the clamping block 12 relative to the baffle plate 11 can be controlled while the fixation is cancelled; when the force disappears after hands are released, the clamping block 12 is rebounded, and is locked.

As a preferred embodiment of the invention, the composite sand box 2 is fixedly connected with the top of the equipment base 1 through the upright post 3 and the reinforcing rod 14, the reinforcing rod 14 is fixedly connected with the control box 25, the outer wall of the control box 25 is fixedly connected with the touch screen 26, the control box 25 is internally provided with the controller 27, the memory 28, the power supply 29 and the communication module 30, and the reinforcing rod 14 is fixedly connected with the control box 25; the invention realizes operation through automatic control. Referring to fig. 1, the output terminals of the touch screen 26, the communication module 30 and the power supply 29 are all connected to an input terminal of a controller 27, and the output terminals of the controller 27 are connected to input terminals of the first motor 4, the second motor 8 and the memory 28, respectively.

The automation equipment of the invention implements the working principle: earlier through touch-sensitive screen 26 input control command, drive first motor 4 and second motor 8 and start, then will wait to mix the resin sand material through the feed inlet and fill in compound sand workbin 2, second motor 8 drives bull stick 9 and changes, thereby mix the sand material through spiral stirring area 10, mix the back that finishes, place the sand mould on placing board 7, first motor 4 drives screw rod 5 and rotates, thereby it removes the below to the discharge gate to drive and place board 7, then open baffle 11, fill the sand material in the mould. Communication module 30's setting, can carry out the receipt of remote control instruction, power connection 31's output can conveniently charge to power 29 simultaneously, latch segment 13's setting, can make things convenient for fixed equipment base 1, slide bar 15 can prevent rocking of slider 6 simultaneously, the setting of screen cloth 17 simultaneously, can filter the sand material, the while viewing aperture can conveniently be observed the compound sand workbin 2 internal conditions, the setting of stock guide 18 simultaneously, can make things convenient for the derivation of sand material. It must be noted that the automatic manufacturing equipment of the invention ensures that the operation of the molding sand equipment is smooth and continuous under the synergistic action of all the components and the matching between the machines is reasonable, thereby rapidly improving the use efficiency of the manufacturing equipment and the production efficiency of the molding sand and finally greatly improving the production quality of the molding sand.

In the present invention, the molding sand is compacted in the mold by a compacting device, which may include a compressed air vibrating compacting device, a gas-powered compacting device, a pressure compacting device, a vibration compacting device, or a combined pressure and vibration compacting device, etc., which are commonly used in the art. In addition, the sand mold may include an upper mold, a lower mold and a sand core, the composite sand material (for example, sawdust resin sand) of the present invention is filled into the lower mold, and when the thickness of the sawdust resin sand is 120-150 mm, the filling is stopped and the filled sawdust resin sand is compacted; continuously filling resin sand into the lower mold of the mold, and placing the fixedly connected sand core on the surface of the resin sand when the filling height of the resin sand is flush with the height of the lower mold cavity of the mold; resin sand is continuously filled into the lower mold of the mold, and the resin sand with the height of 250mm is compacted once every time until the resin sand is higher than the lower mold of the mold and cannot be stacked continuously (the filling speed is increased and the action is rapid under the matching of the locking mechanism and the clamping block in the multiple filling operations, and the filling speed is increased by 10-20%); buckling the upper mold to the lower mold; and (3) placing the mold and the sand mold together for 4-5 hours, opening the mold, and lifting the sand core out of the mold to complete the manufacture of the sand mold.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a compound sand mould automatic manufacturing equipment for cast iron which characterized in that: the equipment sequentially carries out automatic composite sand material filling and mold sand filling to form a composite sand mold, and comprises an equipment base (1) and a composite sand box (2), wherein the composite sand box (2) is fixedly connected with the top of the equipment base (1) through an upright post (3) and a reinforcing rod (14);

the reinforcing rod (14) is fixedly connected with a control box (25), the outer wall of the control box (25) is fixedly connected with a touch screen (26), a controller (27), a memory (28), a power supply (29) and a communication module (30) are arranged in the control box (25), one end of the equipment base (1) is fixedly connected with a first motor (4), the output end of the first motor (4) is fixedly connected with a screw rod (5), the top of the equipment base (1) is provided with a mounting groove corresponding to the screw rod (5), one end of the screw rod (5) in the mounting groove is in threaded sleeve connection with a sliding block (6), the top of the sliding block (6) is fixedly connected with a placing plate (7), and the top of the placing plate (7) is provided with a placing groove;

the top of the composite sand box (2) is fixedly connected with a second motor (8), the output end of the second motor (8) is fixedly connected with a rotating rod (9), the bottom of the rotating rod (9) penetrates through the outer wall of the composite sand box (2) and extends inwards, one extending end of the rotating rod (9) is fixedly sleeved with a spiral stirring belt (10), the top of the composite sand box (2) is provided with two symmetrically arranged feed inlets, and the bottom of the composite sand box (2) is provided with a discharge outlet corresponding to the placing plate (7);

the composite sand box is characterized in that a baffle (11) is slidably inserted into the discharge hole, one end of the baffle (11) penetrates through the inner wall of the discharge hole and is fixedly connected with a clamping block (12), and a locking mechanism corresponding to the clamping block (12) is fixedly connected onto the outer wall of the composite sand box (2).

2. The automatic manufacturing equipment of the composite sand mold for cast iron according to claim 1, characterized in that: the bottom of the equipment base (1) is fixedly connected with a plurality of locking blocks (13), and locking ports are formed in the locking blocks (13); the output ends of the touch screen (26), the communication module (30) and the power supply (29) are connected with the input end of the controller (27), and the output end of the controller (27) is connected with the input ends of the first motor (4), the second motor (8) and the memory (28) respectively.

3. The automatic manufacturing equipment of the composite sand mold for cast iron according to claim 2, characterized in that: the bottom of the control box (25) is fixedly inserted with a power connector (31), and the output end of the power connector (31) is connected with the input end of the power supply (29).

4. The automatic manufacturing equipment of the composite sand mold for cast iron according to claim 3, characterized in that: the mounting groove is internally and fixedly connected with a sliding rod (15), a sliding opening corresponding to the sliding rod (15) is formed in the sliding block (6), a plurality of steel balls (16) are connected in the sliding opening in a sliding mode, and the edges of the steel balls (16) are in contact with the sliding rod (15).

5. The automatic manufacturing equipment of the composite sand mold for cast iron according to claim 1, characterized in that: a plurality of fixing openings are formed in the inner side wall of the placing plate (7).

6. The automatic manufacturing equipment of the composite sand mold for cast iron according to claim 5, characterized in that: and a screen (17) is inserted in the two feeding ports in a sliding way.

7. The automatic manufacturing equipment of the composite sand mold for cast iron according to claim 6, characterized in that: the inner bottom of the composite sand box (2) is fixedly connected with a material guide plate (18) corresponding to the discharge hole.

8. The automatic manufacturing equipment of the composite sand mold for cast iron according to claim 1, characterized in that: an observation port is formed in the inner wall of the composite sand box (2), and a transparent glass plate (19) is fixedly inserted into the observation port.

9. The automatic manufacturing equipment of the composite sand mold for cast iron according to claim 8, characterized in that: locking mechanism includes fixed block (20) and kelly (21), kelly (21) slide and insert and locate on fixed block (20), be equipped with the draw-in groove that corresponds with kelly (21) on fixture block (12), the fixed cover of one end that kelly (21) is close to fixture block (12) has connect cutting ferrule (22), the one end fixedly connected with pull rod (23) of cutting ferrule (22) are kept away from in kelly (21).

10. The automatic manufacturing equipment of the composite sand mold for cast iron according to claim 9, characterized in that: the clamp rod (21) is sleeved with a spring (24), and two ends of the spring (24) are fixedly connected with the clamp sleeve (22) and the fixing block (20) respectively.