Sand making device and method for casting automobile brake caliper body

Abstract

The invention provides a sand making device and method for casting an automobile brake caliper body, and relates to the technical field of sand making for casting, the sand making device comprises a bottom plate, a plurality of supporting legs are fixedly mounted on the top surface of the bottom plate, a crushing box is fixedly mounted on the top surfaces of the supporting legs, and a collecting box is movably placed in the center of the top surface of the bottom plate; a control terminal is fixedly arranged on the surface of one side of the crushing box, a material adding box is installed on the surface of the top of the crushing box in a penetrating mode, crushing assemblies are arranged on the surfaces of the inner walls of the two sides of the material adding box, a long groove is formed in the surface of the other side of the crushing box in a penetrating mode, and a shaking screening assembly is arranged on the surface of the inner wall of the crushing box. According to the device, after crude sand is crushed, the screening basket can screen crude sand particles without additionally screening the crude sand particles, and meanwhile, the screening basket continuously shakes left and right, so that the screening efficiency of the crude sand particles is improved, the processing period of the crude sand is shortened, and the sand making efficiency of the device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sand making for casting, and particularly to a sand making device and method for casting an automotive brake caliper body. Background Art

[0002] The sand making device for casting an automotive brake caliper body is a core device specifically used for preparing casting sand molds (sand cores). Its core function is to provide high-precision and high-strength molding sand molds for the casting process of the brake caliper body. The key processes of sand making include raw sand treatment, sand mixing, sand mold, drying and curing, mold assembly preparation, etc. Among them, for raw sand treatment, silica sand, chromite sand, etc. are selected, impurities are removed, and the particle size distribution is adjusted, which is an essential key step in sand making.

[0003] However, in the prior art, when the sand making device for casting an automotive brake caliper body is in use, the raw sand needs to be crushed to ensure that the particle size of the raw sand is uniform. However, most of the common sand making crushing devices for casting automotive brake calipers perform the crushing process separately. After crushing, an additional external screening device is required to screen the raw sand, which not only increases the processing cost of sand making, but also has a long processing cycle and low efficiency, reducing the efficiency of sand making. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art.

[0005] To achieve the above purpose, the present invention adopts the following technical solution: A sand making device for casting an automotive brake caliper body, comprising: a bottom plate, on the top surface of the bottom plate, a plurality of support legs are fixedly installed, on the top surface of the plurality of support legs, a crushing box is fixedly installed, in the center of the top surface of the bottom plate, a collection box is movably placed, the collection box is located directly below the lower opening of the crushing box, on the top surface of the crushing box, a feeding box is installed through, the bottom inner wall surface of the feeding box is inclined, on the inner wall surfaces of both sides of the feeding box, a crushing assembly is provided, on the other surface of the crushing box, a long groove is penetrated and opened, on the other surface of the crushing box, a guiding plate is fixedly installed, the guiding plate is located below the long groove, on the inner wall surface of the crushing box, a shaking and screening assembly is provided, the crushing assembly includes two rotating rods, the two rotating rods are movably penetrated through the inner wall surfaces of both sides of the feeding box through bearings, on one surface of the feeding box, a first motor is fixedly installed, and the output end of the first motor is fixedly connected to one end surface of one of the rotating rods.

[0006] Further, on the outer wall surfaces of the two rotating rods, cylinders are fixedly installed, both cylinders are located inside the feeding box, on the outer wall surfaces of both cylinders, a plurality of crushing convex teeth are evenly fixedly installed, and the plurality of crushing convex teeth on the surfaces of the two cylinders are arranged in a staggered manner one by one.

[0007] Further, first gears are fixedly installed on the surfaces of the other ends of the two rotating rods, and the two first gears are meshed with each other. A discharge port is formed through the lower end of the inner wall surface of one side of the feeding box.

[0008] Further, the shaking and screening assembly includes a screening basket and an inclined plate. The inclined plate is fixedly installed on the inner wall surface of one side of the crushing box. The inclined surface of the inclined plate is flush with the bottom inner wall surface of the long groove. Long plates are fixedly installed on one side surface of the inclined plate and the inner wall surface of the other side of the crushing box. Sliding grooves are formed on both side surfaces of the screening basket. The two long plates are correspondingly and movably attached to the inside of the two sliding grooves. A cross plate is fixedly installed on the bottom surface of the screening basket.

[0009] Further, a through groove is formed through the other side surface of the crushing box. A cross bar is fixedly installed between the inner wall surfaces at the left and right ends of the through groove. Two L-shaped plates are movably sleeved on the outer wall surface of the cross bar. One end surfaces of the two L-shaped plates are fixedly installed on the bottom surface of the cross plate. A first toothed plate is fixedly sleeved on the outer wall surfaces of the two L-shaped plates. The first toothed plate is located outside the crushing box.

[0010] Further, a rotating shaft is installed on the other side surface of the crushing box through a bearing. A second gear is fixedly sleeved on the outer wall surface of the rotating shaft. The second gear is meshed with the first toothed plate. A rectangular groove is formed at the position above the through groove on the other side surface of the crushing box. A second motor is fixedly installed on the inner wall surface of one side of the rectangular groove. The output end of the second motor is fixedly installed with a reciprocating lead screw. The other end surface of the reciprocating lead screw is connected to the inner wall surface of the other side of the rectangular groove through a bearing.

[0011] Further, an L-shaped connecting plate is threadedly connected to the outer wall surface of the reciprocating lead screw. The upper and lower side surfaces of the L-shaped connecting plate are correspondingly and movably attached to the upper and lower inner wall surfaces of the rectangular groove. A second toothed plate is fixedly installed on the bottom surface of the L-shaped connecting plate. The second toothed plate is meshed with the second gear.

[0012] Further, an opening and closing door is installed on the middle position of one side surface of the crushing box through a hinge. A control terminal is fixedly installed at a position near the edge of one side of the crushing box.

[0013] A method for a sand-making device used in the casting of an automotive brake caliper body, characterized by comprising the following steps:

[0014] S1. First, operate the first motor through the control terminal. The operation of the first motor drives the rotating rod connected to it to rotate. The rotation of the rotating rod drives the first gear connected to it to rotate. The two first gears mesh with each other, so that the two first gears rotate synchronously inward first, and then the two rotating rods rotate synchronously inward. The inward rotation of the two rotating rods drives the two cylinders to rotate inward. The rotation of the two cylinders drives a plurality of crushing convex teeth to rotate around the two rotating rods as the central axis;

[0015] S2. Operate the second motor through the control terminal. The operation of the second motor drives the reciprocating screw rod to rotate. The rotation of the reciprocating screw rod drives the L-shaped connecting plate to move left and right reciprocally. The movement of the L-shaped connecting plate drives the second toothed plate to move. The second toothed plate and the second gear mesh with each other, so that the second gear rotates. The second gear and the first toothed plate mesh with each other. The rotation of the second gear drives the first toothed plate to move left and right reciprocally. The movement of the first toothed plate drives the two L-shaped plates to move left and right reciprocally on the surface of the cross bar. The movement of the two L-shaped plates drives the screening basket to move reciprocally on the surface of the two long plates;

[0016] S3. At this time, add raw sand into the feeding box. The raw sand is crushed by a plurality of crushing convex teeth and falls into the screening basket. At the same time, the screening basket shakes left and right, so as to screen the crushed raw sand by shaking left and right.

[0017] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0018] 1. In the present invention, through the arranged shaking screening assembly, the operation of the second motor drives the reciprocating screw rod to rotate. The rotation of the reciprocating screw rod drives the L-shaped connecting plate to move left and right reciprocally. The movement of the L-shaped connecting plate drives the second toothed plate to move. The second toothed plate and the second gear mesh with each other, so that the second gear rotates. The second gear and the first toothed plate mesh with each other. The rotation of the second gear drives the first toothed plate to move left and right reciprocally. The movement of the first toothed plate drives the two L-shaped plates to move left and right reciprocally on the surface of the cross bar. The movement of the two L-shaped plates drives the screening basket to move reciprocally on the surface of the two long plates. Then add raw sand into the feeding box. The raw sand is crushed by a plurality of crushing convex teeth and falls into the screening basket. At the same time, the screening basket shakes left and right, so as to improve the screening efficiency of the raw sand. The smaller raw sand particles pass through the screening of the screening basket and fall into the collecting box. The larger raw sand particles are discharged from the inside of the crushing box through the inclined plate and the guiding plate, so as to complete the purpose of raw sand crushing and screening;

[0019] 2. In the present invention, by combining crushing and screening, after the raw sand is crushed, the screening basket can directly screen the raw sand particles without using additional external screening equipment to screen the raw sand particles, realizing integrated operation, which not only improves the sand making effect, but also reduces the cost and shortens the operation cycle. Description of the Drawings

[0020] Figure 1 Schematic diagram of the three-dimensional structure provided by the present invention;

[0021] Figure 2 Schematic diagram of the filler port structure provided by the present invention;

[0022] Figure 3 Schematic diagram provided by the present invention;

[0023] Figure 4 Schematic diagram of the sectional structure of the device provided by the present invention;

[0024] Figure 5 Provided by the present invention Figure 4 Left view structure diagram;

[0025] Figure 6 Schematic diagram provided by the present invention;

[0026] Figure 7 Provided by the present invention Figure 6 Bottom view structure diagram;

[0027] Figure 8 Provided by the present invention Figure 5 Schematic diagram of the structure of A in;

[0028] Legend description:

[0029] 1. Bottom plate; 2. Support leg; 3. Crushing box; 4. Collection box; 5. Control terminal; 6. Feeding box; 7. Crushing component; 701. Rotating rod; 702. First motor; 703. Cylinder; 704. Crushing convex teeth; 705. First gear; 706. Discharge port; 8. Long groove; 9. Shaking and screening component; 901. Screening basket; 902. Chute; 903. Inclined plate; 904. Long plate; 905. Cross plate; 906. L-shaped plate; 907. Through groove; 908. Cross bar; 909. First toothed plate; 910. Rotating shaft; 911. Second gear; 912. Rectangular groove; 913. Second motor; 914. Reciprocating lead screw; 915. L-shaped connecting plate; 916. Second toothed plate; 10. Guide plate. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1-8, the present invention provides a technical solution: a sand-making device for casting an automotive brake caliper body, comprising: a bottom plate 1, on the top surface of the bottom plate 1, a plurality of support legs 2 are fixedly installed, on the top surfaces of the plurality of support legs 2, a crushing box 3 is fixedly installed, in the center of the top surface of the bottom plate 1, a collection box 4 is movably placed, the collection box 4 is directly below the lower opening of the crushing box 3, on the top surface of the crushing box 3, a feeding box 6 is installed through, the bottom inner wall surface of the feeding box 6 is inclined, on the inner wall surfaces of both sides of the feeding box 6, a crushing assembly 7 is provided, on the other side surface of the crushing box 3, a long slot 8 is penetrated, on the other side surface of the crushing box 3, a guiding plate 10 is fixedly installed, the guiding plate 10 is located below the long slot 8, on the inner wall surface of the crushing box 3, a shaking and screening assembly 9 is provided;

[0032] The shaking and screening assembly 9 includes a screening basket 901 and an inclined plate 903. The inclined plate 903 is fixedly installed on the inner wall surface of one side of the crushing box 3. The inclined surface of the inclined plate 903 is flush with the bottom inner wall surface of the long slot 8. On one side surface of the inclined plate 903 and on the inner wall surface of the other side of the crushing box 3, long plates 904 are fixedly installed.

[0033] Specifically: the bottom inner wall surface of the feeding box 6 is inclined. After the raw sand is crushed, it can fall on the uppermost end of the screening frame through the inclined surface of the feeding box 6. The first motor 702 plays a role in driving one of the rotating rods 701 to rotate. When in use, a storage device can be placed at a position corresponding to the guiding plate 10 on one side of the device to collect the larger-grained raw sand.

[0034] In one embodiment, the crushing assembly 7 includes two rotating rods 701. The two rotating rods 701 are movably penetrated through the inner wall surfaces of both sides of the feeding box 6 through bearings. On one side surface of the feeding box 6, a first motor 702 is fixedly installed. The output end of the first motor 702 is fixedly connected to one end surface of one of the rotating rods 701. On the outer wall surfaces of the two rotating rods 701, cylinders 703 are fixedly installed. The two cylinders 703 are both located inside the feeding box 6. On the outer wall surfaces of the two cylinders 703, a plurality of crushing convex teeth 704 are uniformly fixedly installed. The plurality of crushing convex teeth 704 on the surfaces of the two cylinders 703 are arranged in a staggered manner one by one.

[0035] Specifically, as Figures 1-3 shown: when the plurality of crushing convex teeth 704 rotate around the two rotating rods 701 as the central axes, the raw sand can be crushed.

[0036] In one embodiment, on the other end surfaces of the two rotating rods 701, first gears 705 are fixedly installed. The two first gears 705 are meshed with each other. At the lower end of the inner wall surface of one side of the feeding box 6, a discharge port 706 is penetrated.

[0037] Specifically, as Figures 2-3As shown: The two first gears 705 mesh with each other. When one of the first gears 705 rotates, it can drive the other first gear 705 to rotate. At the same time, the two first gears 705 rotate synchronously towards the inside.

[0038] In one embodiment, sliding grooves 902 are formed on both side surfaces of the screening basket 901. The two long plates 904 are correspondingly and movably attached to the inside of the two sliding grooves 902. A cross plate 905 is fixedly installed on the bottom surface of the screening basket 901.

[0039] Specifically, as Figures 4-7 shown: The cooperation between the two sliding grooves 902 and the two long plates 904 enables the screening basket 901 to shake. When the screening basket 901 moves to the extreme ends, the discharge port 706 is always located above the inside of the screening basket 901, ensuring that the raw sand particles can fall into the inside of the screening basket 901. Protective plates are provided on both sides of the screening basket 901 to prevent the raw sand from splashing and falling outside.

[0040] In one embodiment, a through groove 907 is formed through the other side surface of the crushing box 3. A cross bar 908 is fixedly installed between the inner walls at the left and right ends of the through groove 907. Two L-shaped plates 906 are movably sleeved on the outer wall surface of the cross bar 908. One end surfaces of the two L-shaped plates 906 are fixedly installed on the bottom surface of the cross plate 905. A first toothed plate 909 is fixedly sleeved on the outer wall surfaces of the two L-shaped plates 906. The first toothed plate 909 is located outside the crushing box 3.

[0041] Specifically, as Figure 8 shown: The two L-shaped plates 906 are movably sleeved on the surface of the cross bar 908, which plays a role in ensuring the stable movement of the two L-shaped plates 906. The two L-shaped plates 906 play a role in driving the screening basket 901 to move left and right.

[0042] In one embodiment, a rotating shaft 910 is installed on the other side surface of the crushing box 3 through a bearing. A second gear 911 is fixedly sleeved on the outer wall surface of the rotating shaft 910. The second gear 911 meshes with the first toothed plate 909. A rectangular groove 912 is formed at the position above the through groove 907 on the other side surface of the crushing box 3. A second motor 913 is fixedly installed on one inner wall surface of the rectangular groove 912. The output end of the second motor 913 is fixedly installed with a reciprocating lead screw 914. The other end surface of the reciprocating lead screw 914 is connected to the other inner wall surface of the rectangular groove 912 through a bearing.

[0043] Specifically, as Figure 8 shown: The second gear 911 meshes with the first toothed plate 909. When the second gear 911 rotates, it can drive the first toothed plate 909 to move. The second motor 913 plays a role in driving the reciprocating lead screw 914 to rotate. When the first toothed plate 909 moves to the extreme ends, it will never disengage from the second gear 911.

[0044] In one embodiment, an L-shaped connecting plate 915 is threadedly connected to the outer wall surface of the reciprocating lead screw 914. The upper and lower surface of the L-shaped connecting plate 915 are correspondingly and movably attached to the upper and lower inner wall surfaces of the rectangular groove 912. A second toothed plate 916 is fixedly installed on the bottom surface of the L-shaped connecting plate 915, and the second toothed plate 916 meshes with the second gear 911.

[0045] Specifically, as Figure 8 shown: The L-shaped connecting plate 915 moves by means of the reciprocating lead screw 914 and the rectangular groove 912. The reciprocating lead screw 914 plays a role in driving the L-shaped connecting plate 915 to reciprocate left and right. The L-shaped plate 906 plays a role in driving the second toothed plate 916 to reciprocate left and right. The second toothed plate 916 plays a role in driving the second gear 911 to rotate. When the L-shaped plate 906 moves to the extreme positions at both ends, the second toothed plate 916 never disengages from the second gear 911.

[0046] In one embodiment, a hinged opening and closing door is installed at the middle position on one side surface of the crushing box 3, and a control terminal 5 is fixedly provided at a position near the edge on one side of the crushing box 3.

[0047] Specifically, as Figure 1 shown: The opening and closing door can be used to open and clean the screening basket 901 inside the crushing box 3. The control terminal 5 can be associated and controlled with the equipment, and its operation and docking are all prior arts, which will not be elaborated here.

[0048] The present invention also provides a method for a sand-making device for casting an automotive brake caliper body, including the following steps:

[0049] S1. First, operate the first motor 702 through the control terminal 5. The operation of the first motor 702 drives the rotating rod 701 connected thereto to rotate. The rotation of the rotating rod 701 drives the first gear 705 connected thereto to rotate. The two first gears 705 mesh with each other, so that the two first gears 705 rotate synchronously towards the inside first, and then the two rotating rods 701 rotate synchronously towards the inside. The two rotating rods 701 rotating towards the inside drive the two cylinders 703 to rotate towards the inside. The rotation of the two cylinders 703 drives a plurality of crushing convex teeth 704 to rotate with the two rotating rods 701 as the central axes;

[0050] S2. Operate the second motor 913 through the control terminal 5. The operation of the second motor 913 drives the reciprocating lead screw 914 to rotate. The rotation of the reciprocating lead screw 914 drives the L-shaped connecting plate 915 to move left and right reciprocally. The movement of the L-shaped connecting plate 915 drives the second toothed plate 916 to move. The second toothed plate 916 meshes with the second gear 911, so that the second gear 911 rotates. The second gear 911 meshes with the first toothed plate 909. The rotation of the second gear 911 drives the first toothed plate 909 to move left and right reciprocally. The movement of the first toothed plate 909 drives the two L-shaped plates 906 to move left and right reciprocally on the surface of the cross bar 908. The movement of the two L-shaped plates 906 drives the screening basket 901 to move reciprocally on the surface of the two long plates 904;

[0051] S3. At this time, add the raw sand into the inside of the feeding box 6. The raw sand is crushed by the multiple crushing convex teeth 704 and falls into the inside of the screening basket 901. At the same time, the screening basket 901 shakes left and right, so as to screen the crushed raw sand by shaking left and right.

[0052] Working principle:

[0053] When using this sand making device for casting automotive brake calipers to crush the raw sand, operate the first motor 702 and the second motor 913 through the control terminal 5. The operation of the first motor 702 drives one of the rotating rods 701 to rotate. The rotation of one of the rotating rods 701 drives one of the first gears 705 to rotate. The two first gears 705 mesh with each other, so that the two first gears 705 rotate synchronously towards the inside first. Furthermore, the two rotating rods 701 rotate towards the inside. The rotation of the two rotating rods 701 drives the two cylinders 703 to rotate towards the inside. The rotation of the two cylinders 703 drives the multiple crushing convex teeth 704 to rotate with the two rotating rods 701 as the central axes;

[0054] The operation of the second motor 913 drives the reciprocating lead screw 914 to rotate. The rotation of the reciprocating lead screw 914 drives the L-shaped connecting plate 915 to move left and right reciprocally. The movement of the L-shaped connecting plate 915 drives the second toothed plate 916 to move. The second toothed plate 916 meshes with the second gear 911, so that the second gear 911 rotates. The second gear 911 meshes with the first toothed plate 909. The rotation of the second gear 911 drives the first toothed plate 909 to move left and right reciprocally. The movement of the first toothed plate 909 drives the two L-shaped plates 906 to move left and right reciprocally on the surface of the cross bar 908. The movement of the two L-shaped plates 906 drives the screening basket 901 to move reciprocally on the surface of the two long plates 904. Subsequently, raw sand is added into the feeding box 6. The raw sand is crushed by multiple crushing convex teeth 704 and falls into the interior of the screening basket 901. At the same time, the screening basket 901 shakes left and right, thereby accelerating the screening efficiency of the raw sand. The smaller raw sand particles pass through the screening of the screening basket 901 and fall into the interior of the collection box 4. The larger raw sand particles are discharged from the interior of the crushing box 3 through the inclined plate 903 and the guiding plate 10, thus achieving the purpose of raw sand crushing and screening. The screened raw sand can be uniformly collected for the next process operation;

[0055] Through the cooperation of the above structures, the screening basket 901 can screen the raw sand particles after the raw sand is crushed, without the need to additionally use external screening equipment to screen the raw sand particles. At the same time, the screening basket 901 shakes left and right continuously, thereby accelerating the screening efficiency of the raw sand particles, reducing the processing cycle of the raw sand, and improving the sand making efficiency of the device.

[0056] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A sand making device for casting an automobile brake caliper body, characterized in that: include: A bottom plate (1), a plurality of supporting legs (2) are fixedly mounted on the top surface of the bottom plate (1), a crushing box (3) is fixedly mounted on the top surfaces of the plurality of supporting legs (2), a collecting box (4) is movably placed at the center of the top surface of the bottom plate (1), the collecting box (4) is located directly below the lower end opening of the crushing box (3), a feeding box (6) is installed through the top surface of the crushing box (3), the bottom inner wall surface of the feeding box (6) is inclined, crushing assemblies (7) are provided on the inner wall surfaces of both sides of the feeding box (6), a long groove (8) is penetrated through the other side surface of the crushing box (3), a guide plate (10) is fixedly mounted on the other side surface of the crushing box (3), the guide plate (10) is located below the long groove (8), and a shaking screening assembly (9) is provided on the inner wall surface of the crushing box (3); The shaking screening assembly (9) comprises a screening basket (901) and an inclined plate (903), wherein the inclined plate (903) is fixedly mounted on the inner wall surface of one side of the crushing box (3), the inclined surface of the inclined plate (903) is flush with the inner wall surface of the bottom of the long groove (8), and the long plate (904) is fixedly mounted on the inner wall surface of the other side of the crushing box (3).

2. The sand making device for casting an automobile brake caliper body according to claim 1, characterized in that: The crushing assembly (7) comprises two rotating rods (701), the two rotating rods (701) movably penetrate the inner wall surfaces on both sides of the feeding box (6) through bearings, a first motor (702) is fixedly installed on one side surface of the feeding box (6), an output end of the first motor (702) is fixedly connected to one end surface of one of the rotating rods (701), a cylinder (703) is fixedly installed on the outer wall surfaces of the two rotating rods (701), the two cylinders (703) are both located on the inner side of the feeding box (6), a plurality of crushing convex teeth (704) are evenly fixedly installed on the outer wall surfaces of the two cylinders (703), and the plurality of crushing convex teeth (704) on the surfaces of the two cylinders (703) are staggered one by one.

3. The sand making device for casting an automobile brake caliper body according to claim 2, characterized in that: A first gear (705) is fixedly mounted on the other end surfaces of the two rotating rods (701), and the two first gears (705) are meshed with each other. A discharge port (706) is formed through the lower end of the inner wall surface of one side of the material adding box (6).

4. The sand making device for casting an automobile brake caliper body according to claim 1, characterized in that: The two side surfaces of the screening basket (901) are provided with slide grooves (902), the two long plates (904) are correspondingly and movably fitted inside the two slide grooves (902), and the bottom surface of the screening basket (901) is fixedly provided with a horizontal plate (905).

5. The sand making device for casting an automobile brake caliper body according to claim 1, characterized in that: A through groove (907) is formed through the other side surface of the crushing box (3), a cross bar (908) is fixedly installed between the inner walls at the left and right ends of the through groove (907), and two L-shaped plates (906) are movably fitted on the outer wall surface of the cross bar (908), one end surface of the two L-shaped plates (906) are fixedly installed on the bottom surface of the cross plate (905), and a first tooth plate (909) is fixedly installed on the outer wall surface of the two L-shaped plates (906), and the first tooth plate (909) is located on the outside of the crushing box (3).

6. The sand making device for casting an automobile brake caliper body according to claim 1, characterized in that: A rotating shaft (910) is installed on the other side surface of the crushing box (3) via a bearing, and a second gear (911) is fixedly sleeved on the outer wall surface of the rotating shaft (910), and the second gear (911) and the first tooth plate (909) are meshed with each other. A rectangular groove (912) is provided on the other side surface of the crushing box (3) at a position above the through groove (907), and a second motor (913) is fixedly installed on the inner wall surface of one side of the rectangular groove (912), and a reciprocating screw rod (914) is fixedly installed on the output end of the second motor (913), and the other end surface of the reciprocating screw rod (914) is connected to the inner wall surface of the other side of the rectangular groove (912) via a bearing.

7. The sand making device for casting an automobile brake caliper body according to claim 6, characterized in that: The outer wall surface of the reciprocating screw rod (914) is threadedly connected with an L-shaped connecting plate (915), and the upper and lower side surfaces of the L-shaped connecting plate (915) correspond to the upper and lower side inner wall surfaces of the movably fitted rectangular groove (912), and the bottom surface of the L-shaped connecting plate (915) is fixedly mounted with a second tooth plate (916), and the second tooth plate (916) and the second gear (911) are meshed with each other.

8. The sand making device for casting an automobile brake caliper body according to claim 1, characterized in that: An opening and closing door is installed at a middle position on a surface of one side of the crushing box (3) via a hinge, and a control terminal (5) is fixedly provided at a position close to an edge of one side of the crushing box (3).

9. A method for producing a sand making device for casting a vehicle brake caliper body according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. The first motor (702) is controlled and operated in advance through the control terminal (5). The operation of the first motor (702) drives the rotating rod (701) connected thereto to rotate. The rotation of the rotating rod (701) drives the first gear (705) connected thereto to rotate. The two first gears (705) are meshed with each other, so that the two first gears (705) rotate inward synchronously first, thereby causing the two rotating rods (701) to rotate inward synchronously. The inward rotation of the two rotating rods (701) drives the two cylinders (703) to rotate inward. The rotation of the two cylinders (703) drives the multiple crushing protruding teeth (704) to rotate around the two rotating rods (701) as the central axis; S2. The second motor (913) is operated by the control terminal (5). The operation of the second motor (913) drives the reciprocating screw (914) to rotate. The rotation of the reciprocating screw (914) drives the L-shaped connecting plate (915) to move back and forth. The movement of the L-shaped connecting plate (915) drives the second tooth plate (916) to move. The second tooth plate (916) and the second gear (911) are meshed with each other, so that the second gear (911) rotates. The second gear (911) and the first tooth plate (909) are meshed with each other. The rotation of the second gear (911) drives the first tooth plate (909) to move back and forth. The movement of the first tooth plate (909) drives the two L-shaped plates (906) to move back and forth on the surface of the cross bar (908). The movement of the two L-shaped plates (906) drives the screening basket (901) to move back and forth on the surface of the two long plates (904); S3. At this time, raw sand is added to the inside of the adding box (6). The raw sand is crushed by a plurality of crushing convex teeth (704) and falls into the inside of the screening basket (901). At the same time, the screening basket (901) is shaken left and right, thereby shaking and screening the crushed raw sand left and right.

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