CN112934319A - Sand mold waste recycling method and sand mold crushing device - Google Patents

Abstract

The invention discloses a sand mold crushing device which comprises a crushing box, wherein a rack is fixedly connected to one side of the crushing box, a crushing mechanism and a crushing mechanism are arranged in the crushing box, a partition board for separating the crushing mechanism from the crushing mechanism is arranged in the crushing box, a feed port and a discharge port are respectively formed in the top and the bottom of the crushing box, a screen for separating the crushing mechanism from the discharge port is arranged in the crushing box, and two mounting grooves are formed in one side of the crushing box. According to the invention, the scrapped sand molds are fed to the feeding hole through the feeding mechanism, the scrapped sand molds are rolled through the crushing mechanism, the crushed materials of the sand molds are crushed for the second time through the crushing mechanism, the crushing effect of the waste materials is improved, and the crushed materials with larger sizes are put into the crushing box again through the feeding hole for the second crushing treatment, so that the utilization rate of the waste materials is improved.

Description

Sand mold waste recycling method and sand mold crushing device

Technical Field

The invention relates to the technical field of sand molds, in particular to a sand mold waste recycling method and a sand mold crushing device.

Background

Sand casting is a widely used form of casting, as the name implies, that is, the manufacture of casting molds from sand, which requires the placement of a finished part pattern in the sand, followed by the filling of the pattern with sand over the entire perimeter of the pattern to form the mold.

The invention provides a sand mould waste recycling method and a sand mould crushing device, which are used for crushing a scrapped sand mould and then re-manufacturing and molding, thereby saving the cost, reducing the industrial waste and reducing the environmental pollution.

Disclosure of Invention

In order to solve the problems mentioned in the background art, a sand mold waste recycling method and a sand mold crushing device are provided.

In order to achieve the purpose, the invention adopts the following technical scheme:

a sand mold crushing device comprises a crushing box, a frame is fixedly connected with one side of the crushing box, a crushing mechanism and a crushing mechanism are arranged in the crushing box, a baffle plate for separating the crushing mechanism and the crushing mechanism is arranged in the crushing box, the top and the bottom of the crushing box are respectively provided with a feed inlet and a discharge outlet, a screen separating the crushing mechanism from the discharge port is arranged in the crushing box, two mounting grooves are arranged on one side of the crushing box, a pull rod mechanism driving the partition board and the screen to move in the horizontal direction is respectively arranged in the two mounting grooves, the crushing mechanism comprises a first electric telescopic rod fixedly arranged on one side of the top of the crushing box, a crushing plate is fixedly connected with the free end of the first electric telescopic rod, the crushing mechanism comprises three mutually meshed crushing rollers, the cross sections of the crushing rollers are in an inverted triangle shape, and the feeding mechanism is installed on the rack.

As a further description of the above technical solution:

feeding mechanism installs the follow driving wheel of installing in frame top both sides including rotating, frame bottom fixed mounting has a driving motor, fixed mounting has the action wheel that corresponds from the driving wheel on a driving motor's the output shaft, the action wheel is connected through first belt transmission from between the driving wheel, fixed mounting has feed mechanism on the first belt.

As a further description of the above technical solution:

feed mechanism includes the fixed plate of fixed mounting on first belt, flitch under the fixed plate top one side is rotated and is installed, fixed plate bottom opposite side fixed mounting has third electric telescopic handle, third electric telescopic handle's free end run through behind the fixed plate with lower flitch sliding connection, the conveyer belt is installed to frame one side.

As a further description of the above technical solution:

the crushing box top part positioned at two sides of the feeding hole is fixedly connected with a baffle and a blanking plate which is obliquely arranged.

As a further description of the above technical solution:

the bottom of the blanking plate is provided with a sliding groove, and the free end of the third electric telescopic rod is connected with the sliding groove in a sliding manner.

As a further description of the above technical solution:

the pull rod mechanism comprises a second electric telescopic rod fixedly installed on one side of the installation groove, a free end of the second electric telescopic rod is fixedly connected with a push plate, the push plate is fixedly connected with the partition board, and a limiting rod penetrating through the push plate is fixedly connected in the installation groove.

As a further description of the above technical solution:

the push plate is in threaded connection with the screen through a screw.

As a further description of the above technical solution:

the crushing box is internally and rotatably provided with a transmission shaft sleeved inside the crushing roller, the outer side of the crushing box is fixedly provided with a second driving motor in transmission connection with the transmission shaft, and the transmission shafts are in transmission connection through a second belt.

As a further description of the above technical solution:

and a plurality of grinding teeth which are arranged in a staggered manner are arranged on the opposite surfaces of the grinding box and the grinding plate.

As a further description of the above technical solution:

a sand mould waste recycling method comprises the following steps:

s1, crushing the scrapped sand mold through a sand mold crushing device to obtain crushed materials of the sand mold;

s2, mixing 90% of sand mould crushed materials, 5% of kaolin and 5% of bauxite with water, and stirring by a stirrer to obtain a mixture;

the kaolin is one or a mixture of more of montmorillonite, bentonite and attapulgite;

the bauxite consists of 1 percent of bauxite with 16-30 meshes, 1 percent of bauxite with 30-60 meshes, 1 percent of bauxite with 40-70 meshes and 2 percent of bauxite with 700 meshes;

and S3, pressing and molding the mixture through a hydraulic press to obtain a recycled sand mold semi-finished product, and air-drying for 2-3 days in a natural environment to obtain a reusable sand mold finished product.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. in the invention, a scrapped sand mold is fed to a feeding hole through a feeding mechanism, firstly, the scrapped sand mold is rolled through a crushing mechanism, a rolling plate and the scrapped sand mold are pushed to move towards the inner wall of a crushing box through a first electric telescopic rod to extrude the scrapped sand mold, then, a partition plate is pulled to a mounting groove through a pull rod mechanism, crushed materials of the sand mold fall down, the crushed materials of the sand mold are crushed secondarily through the crushing mechanism to improve the crushing effect of waste materials, under the transmission action of a second belt, a second driving motor drives crushing rollers to rotate, 3 meshing positions are formed among three crushing rollers to be crushed, the crushed materials are screened through a screen mesh, the quality of the waste materials is improved, the crushed materials with smaller size are discharged through a discharging hole, the crushed materials with larger size are left on the screen mesh, the screen mesh is pulled to the mounting groove through the pull rod mechanism, the box door is opened, and the crushed materials with larger size are put into the crushing, and the secondary crushing treatment is carried out, so that the utilization rate of waste materials is improved.

2. In the invention, a mixture obtained by mixing 90% of sand mould crushed aggregates, 5% of kaolin and 5% of bauxite with water is remolded and molded by a hydraulic press, and the mixture is dried for 2 to 3 days in a natural environment to obtain a new reusable sand mould, thereby saving the cost, reducing the generation of industrial garbage and simultaneously reducing the environmental pollution.

Drawings

Fig. 1 is a schematic view showing an internal structure of a sand mold crushing apparatus according to an embodiment of the present invention;

FIG. 2 illustrates a schematic front view of a drawbar mechanism of a sand mold crushing apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic bottom view of a blanking plate of a sand mold crushing apparatus according to an embodiment of the present invention;

FIG. 4 illustrates a schematic rear view of a sand mold crushing apparatus provided in accordance with an embodiment of the present invention;

fig. 5 is a front view schematically illustrating a sand mold crushing apparatus according to an embodiment of the present invention.

Illustration of the drawings:

1. a crushing box; 2. a crushing roller; 3. a drive shaft; 4. screening a screen; 5. a discharge port; 6. a partition plate; 7. grinding the teeth; 8. a baffle plate; 9. a feed inlet; 10. rolling the plate; 11. a first electric telescopic rod; 12. a blanking plate; 13. a pull rod mechanism; 14. mounting grooves; 15. pushing the plate; 16. a limiting rod; 17. a second electric telescopic rod; 18. a screw; 19. a frame; 20. a driven wheel; 21. a first belt; 22. a driving wheel; 23. a first drive motor; 24. a blanking plate; 25. a fixing plate; 26. a third electric telescopic rod; 27. a conveyor belt; 28. a second belt; 29. a second drive motor; 30. a chute.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-5, the present invention provides a technical solution: a sand mould crushing device comprises a crushing box 1, a box door corresponding to a mounting groove 14 is arranged on the outer side of the crushing box 1, a frame 19 is fixedly connected to one side of the crushing box 1, a crushing mechanism and a crushing mechanism are arranged in the crushing box 1, a partition plate 6 for separating the crushing mechanism from the crushing mechanism is arranged in the crushing box 1, a feed inlet 9 and a discharge outlet 5 are respectively arranged at the top and the bottom of the crushing box 1, a screen 4 for separating the crushing mechanism from the discharge outlet 5 is arranged in the crushing box 1, two mounting grooves 14 are arranged on one side of the crushing box 1, a pull rod mechanism 13 for driving the partition plate 6 and the screen 4 to move in the horizontal direction is respectively arranged in the two mounting grooves 14, the crushing mechanism comprises a first electric telescopic rod 11 fixedly arranged on one side of the top of the crushing box 1, a rolling plate 10 is fixedly connected to the free end of the first electric telescopic rod 11, a plurality of, the grinding capacity is improved, the grinding mechanism comprises three mutually meshed grinding rollers 2, the cross sections of the three grinding rollers 2 are in an inverted triangle form, a transmission shaft 3 sleeved inside the grinding rollers 2 is rotatably installed in the grinding box 1, a second driving motor 29 in transmission connection with the transmission shaft 3 is fixedly installed on the outer side of the grinding box 1, the transmission shafts 3 are in transmission connection through a second belt 28, and a feeding mechanism is installed on the rack 19;

the scrapped sand molds are fed to the feeding port 9 through the feeding mechanism, firstly, the scrapped sand molds are rolled through the crushing mechanism, the rolling plate 10 and the scrapped sand molds are pushed to move towards the inner wall of the crushing box 1 through the first electric telescopic rod 11 to extrude the scrapped sand molds, then, the partition plate 6 is pulled towards the mounting groove 14 through the pull rod mechanism 13, the crushed materials of the sand molds fall down, the crushed materials of the sand molds are crushed for the second time through the crushing mechanism, the crushing effect of waste materials is improved, the crushing rollers 2 are driven to rotate through the second driving motor 29 under the transmission action of the second belt 28, the crushing treatment is carried out at 3 meshing positions formed by the three crushing rollers 2, the crushed materials after crushing are screened through the screen 4, the quality of the waste materials is improved, the crushed materials with smaller size are discharged through the discharging port 5, the crushed materials with larger size are left on the screen 4, the screen 4 is pulled towards the mounting groove 14, and opening the box door, putting the large-size crushed aggregates into the crushing box 1 again through the feed inlet 9, and performing secondary crushing treatment to improve the utilization rate of the waste materials.

Referring to fig. 1, the feeding mechanism includes driven wheels 20 rotatably mounted on two sides of the top of the frame 19, a first driving motor 23 is fixedly mounted at the bottom of the frame 19, a driving wheel 22 corresponding to the driven wheels 20 is fixedly mounted on an output shaft of the first driving motor 23, the driving wheel 22 and the driven wheels 20 are in transmission connection through a first belt 21, and a feeding mechanism is fixedly mounted on the first belt 21;

the feeding mechanism comprises a fixing plate 25 fixedly mounted on the first belt 21, a blanking plate 24 is rotatably mounted on one side of the top of the fixing plate 25, a third electric telescopic rod 26 is fixedly mounted on the other side of the bottom of the fixing plate 25, the free end of the third electric telescopic rod 26 penetrates through the fixing plate 25 and then is in sliding connection with the blanking plate 24, a sliding groove 30 is formed in the bottom of the blanking plate 24, the free end of the third electric telescopic rod 26 is in sliding connection with the sliding groove 30, and a conveying belt 27 is mounted on one side of the rack 19;

the top of the crushing box 1 positioned at the two sides of the feeding hole 9 is fixedly connected with a baffle plate 8 and an obliquely arranged blanking plate 12, and the scrapped sand mold is blocked by the baffle plate 8, so that the scrapped sand mold can smoothly enter the crushing box 1 through the feeding hole 9;

the scrapped sand mold is fed onto the blanking plate 24 through the conveyor belt 27, the driving wheel 22 is driven to rotate anticlockwise through the first driving motor 23, the first belt 21 is driven to rotate synchronously, the feeding mechanism is driven to ascend vertically, when the blanking plate 24 is aligned with the blanking plate 12, the blanking plate 24 is pushed to rotate upwards through the free end of the third electric telescopic rod 26, the scrapped sand mold slides into the blanking plate 12, and the scrapped sand mold enters the crushing box 1 through the blanking plate 12 and the feeding hole 9 to be crushed.

Referring to fig. 1 and 2, the pull rod mechanism 13 includes a second electric telescopic rod 17 fixedly installed at one side of the installation groove 14, a push plate 15 is fixedly connected to a free end of the second electric telescopic rod 17, the push plate 15 is fixedly connected to the partition 6, and a limit rod 16 penetrating through the push plate 15 is fixedly connected to the inside of the installation groove 14;

the push plate 15 is in threaded connection with the screen 4 through a screw 18;

through the motion of second electric telescopic handle 17 pulling push pedal 15, and then drive baffle 6 or screen cloth 4 motion, wherein, smash 1 one side of case and have the recess with baffle 6 and screen cloth 4 looks adaptation, wherein, through upwards screwing out screen cloth 4 with screw rod 18 to take out screen cloth 4, throw into again through feed inlet 9 with the great waste material of size on screen cloth 4 and smash the processing once more in crushing case 1.

Specifically, the sand mold waste recycling method comprises the following steps:

s1, crushing the scrapped sand mold through a sand mold crushing device to obtain crushed materials of the sand mold;

s2, mixing 90% of sand mould crushed materials, 5% of kaolin and 5% of bauxite with water, and stirring by a stirrer to obtain a mixture;

the kaolin is one or a mixture of more of montmorillonite, bentonite and attapulgite;

the bauxite consists of 1 percent of bauxite with 16-30 meshes, 1 percent of bauxite with 30-60 meshes, 1 percent of bauxite with 40-70 meshes and 2 percent of bauxite with 700 meshes;

and S3, pressing and molding the mixture through a hydraulic press to obtain a recycled sand mold semi-finished product, and air-drying for 2-3 days in a natural environment to obtain a reusable sand mold finished product.

The working principle is as follows: when the sand mould crushing device is used, S1, crushing the scrapped sand mould through the sand mould crushing device to obtain crushed materials of the sand mould;

the use method of the crushing device comprises the following steps:

firstly, the scrapped sand molds are fed onto a blanking plate 24 through a conveyor belt 27, a driving wheel 22 is driven to rotate anticlockwise through a first driving motor 23, a first belt 21 is further driven to rotate synchronously, a feeding mechanism is driven to ascend vertically, when the blanking plate 24 is aligned with a blanking plate 12, the blanking plate 24 is pushed to rotate upwards through the free end of a third electric telescopic rod 26, and the scrapped sand molds slide into the blanking plate 12 and enter a crushing box 1 through the blanking plate 12 and a feeding hole 9;

then, the first electric telescopic rod 11 pushes the rolling plate 10 and the scrapped sand mold to move towards the inner wall of the crushing box 1 to extrude the scrapped sand mold, then the second electric telescopic rod 17 pulls the partition plate 6 towards the installation groove 14, the crushed material of the sand mold falls down, then under the transmission action of the second belt 28, the second driving motor 29 drives the crushing rollers 2 to rotate, the three crushing rollers 2 form 3 meshed parts for crushing treatment, the crushing effect of waste materials is improved, then the crushed material is screened through the screen 4, the quality of the waste materials is improved, the crushed material with smaller size is discharged through the discharge port 5, and the crushed material with larger size is left on the screen 4;

finally, the screen 4 is pulled to the mounting groove 14 through the second electric telescopic rod 17, the box door is opened, the screw 18 is screwed out of the screen 4 upwards so as to take out the screen 4, and the waste with larger size on the screen 4 is thrown into the crushing box 1 again through the feeding hole 9 for secondary crushing treatment, so that the waste utilization rate is improved;

s2, mixing 90% of sand mould crushed materials, 5% of kaolin and 5% of bauxite with water, and stirring by a stirrer to obtain a mixture;

and S3, pressing and molding the mixture through a hydraulic press to obtain a recycled sand mold semi-finished product, and air-drying for 2-3 days in a natural environment to obtain a reusable sand mold finished product.

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 (10)

1. A sand mold crushing device comprises a crushing box (1), wherein one side of the crushing box (1) is fixedly connected with a rack (19), and the sand mold crushing device is characterized in that a crushing mechanism and a crushing mechanism are arranged in the crushing box (1), a partition plate (6) for separating the crushing mechanism from the crushing mechanism is arranged in the crushing box (1), a feed inlet (9) and a discharge outlet (5) are respectively formed in the top and the bottom of the crushing box (1), a screen (4) for separating the crushing mechanism from the discharge outlet (5) is arranged in the crushing box (1), two mounting grooves (14) are formed in one side of the crushing box (1), a pull rod mechanism (13) for driving the partition plate (6) and the screen (4) to move in the horizontal direction is respectively mounted in the two mounting grooves (14), the crushing mechanism comprises a first electric telescopic rod (11) fixedly mounted on one side of the top of the crushing box (1, the free end fixedly connected with of first electric telescopic handle (11) rolls board (10), rubbing crusher constructs including three intermeshing's crushing roller (2), and is three the transversal form of personally submitting of crushing roller (2) is the form of falling triangle, install feeding mechanism on frame (19).

2. A sand mould crushing apparatus according to claim 1, wherein the feeding mechanism comprises driven wheels (20) rotatably mounted on two sides of the top of the frame (19), a first driving motor (23) is fixedly mounted at the bottom of the frame (19), a driving wheel (22) corresponding to the driven wheels (20) is fixedly mounted on an output shaft of the first driving motor (23), the driving wheel (22) and the driven wheels (20) are in transmission connection through a first belt (21), and a feeding mechanism is fixedly mounted on the first belt (21).

3. A sand mould crushing device according to claim 2, wherein the feeding mechanism comprises a fixed plate (25) fixedly installed on the first belt (21), a blanking plate (24) is rotatably installed on one side of the top of the fixed plate (25), a third electric telescopic rod (26) is fixedly installed on the other side of the bottom of the fixed plate (25), the free end of the third electric telescopic rod (26) penetrates through the fixed plate (25) and then is slidably connected with the blanking plate (24), and a conveying belt (27) is installed on one side of the rack (19).

4. A sand mould crushing plant as claimed in claim 3, characterised in that the top of the crushing box (1) on both sides of the feed opening (9) is fixedly connected with a baffle (8) and an obliquely arranged blanking plate (12).

5. A sand mould crushing device according to claim 4, wherein the bottom of the blanking plate (24) is provided with a sliding groove (30), and the free end of the third electric telescopic rod (26) is connected with the sliding groove (30) in a sliding way.

6. A sand mould crushing device according to claim 1, wherein the pull rod mechanism (13) comprises a second electric telescopic rod (17) fixedly installed at one side of the installation groove (14), a push plate (15) is fixedly connected to the free end of the second electric telescopic rod (17), the push plate (15) is fixedly connected with the partition plate (6), and a limiting rod (16) penetrating through the push plate (15) is fixedly connected in the installation groove (14).

7. A sand mould crushing device according to claim 6, characterised in that the push plate (15) is screwed to the screen (4) by means of screws (18).

8. The sand mold crushing device according to claim 1, wherein the transmission shaft (3) sleeved inside the crushing roller (2) is rotatably installed in the crushing box (1), a second driving motor (29) in transmission connection with the transmission shaft (3) is fixedly installed on the outer side of the crushing box (1), and the transmission shafts (3) are in transmission connection through a second belt (28).

9. A sand mould crushing plant according to claim 1, characterised in that the opposite faces of the crushing box (1) and the milling plate (10) have a number of milling teeth (7) arranged offset.

10. A sand mould waste recycling method is characterized by comprising the following steps:

s1, crushing the scrapped sand mold through a sand mold crushing device to obtain crushed materials of the sand mold;

s2, mixing 90% of sand mould crushed materials, 5% of kaolin and 5% of bauxite with water, and stirring by a stirrer to obtain a mixture;

the kaolin is one or a mixture of more of montmorillonite, bentonite and attapulgite;

the bauxite consists of 1 percent of bauxite with 16-30 meshes, 1 percent of bauxite with 30-60 meshes, 1 percent of bauxite with 40-70 meshes and 2 percent of bauxite with 700 meshes;

and S3, pressing and molding the mixture through a hydraulic press to obtain a recycled sand mold semi-finished product, and air-drying for 2-3 days in a natural environment to obtain a reusable sand mold finished product.

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