Sand mixing device for casting machinery

Abstract

The utility model provides a sand mixing device for casting machinery, and relates to the technical field of casting machinery, the sand mixing device comprises a box body, the interior of the box body is hollow, a material inlet is formed in the top of the box body, and the sand mixing device further comprises a grinding assembly and a sand mixing assembly, the sand mixing assembly is mounted at the bottom of the box body; and the screening assembly is arranged in the middle section in the box cavity and located between the grinding assembly and the sand mixing assembly. According to the equipment, sand grains can be crushed and ground, meanwhile, an electric heating wire can prevent the sand grains from caking, the crushing and grinding effect is better, the sand grains are screened through a screening assembly so that the product quality can be guaranteed, the production requirements of mechanical castings can be met, the sand grains are fully stirred and mixed through a sand mixing assembly, and the production efficiency is improved. And the efficiency of the whole mechanical casting production line is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to foundry machinery technical field, specifically, relate to a kind of sand mixing device for foundry machinery. BACKGROUND

[0002] Sand mixing device is one of important equipment in foundry production process, in foundry machinery process, different raw materials such as sand, binder etc. are uniformly mixed, to prepare sand that meets specific performance requirements, sand mixing device plays a key role in this link, directly affects the quality and production efficiency of foundry products.

[0003] After searching, in the prior art, patent application number CN217964622U discloses "a kind of industrial electric furnace production casting mechanical sand mixing device convenient to use", including sand mixer main body, the sand mixer main body is equipped with mixing mechanism, the sand mixer main body is equipped with crushing mechanism;The mixing mechanism includes the first support plate fixed with the sand mixer main body right side, the first support plate is fixed with the first motor on the upper surface, the output shaft of the first motor is fixed with the screw rod penetrating the sand mixer main body right side, the outer surface of the screw rod is fixed with two threaded blocks.The sand mixing device of casting mechanical convenient to use of industrial electric furnace production, all mixing mechanism, mixing mechanism is operated by the first motor, so that screw rod drives threaded block to move, threaded block drives second motor to move, second motor operates, so that first rotating rod drives stirring rod to rotate, to carry out stirring and mixing, compared with the traditional sand mixing device of casting mechanical of industrial electric furnace production, mixing and stirring effect is stronger, and the application range is more extensive.But still have the following defects:

[0004] In the above patent document, the screening device without material after crushing by crushing mechanism, since crushing mechanism cannot crush all sand particles into the size meeting product standard at one time, directly mixes sand particles of different sizes together, which will directly affect the quality of cast products during subsequent mechanical casting.

[0005] Therefore, we improve it, and propose a kind of sand mixing device for foundry machinery. UTILITY MODEL CONTENT

[0006] The utility model aims at: for the screening processing device without material after crushing by crushing mechanism, since crushing mechanism cannot crush all sand particles into the size meeting product standard at one time, directly mixes sand particles of different sizes together, which will affect product quality during subsequent mechanical casting.

[0007] In order to realize the above-mentioned utility model purposes, the utility model provides the following technical solutions:

[0008] A kind of sand mixing device for foundry machinery, to improve the above-mentioned problems.

[0009] The application is particularly as follows:

[0010] A sand mixing device for foundry machinery, comprising a box body, the inside of the box body is hollow and the top of the box body is provided with a material inlet, further comprising:

[0011] A crushing assembly arranged on the inner side wall of the box body and below the material inlet;

[0012] A sand mixing assembly installed on the bottom inner wall of the box body;

[0013] A screening assembly arranged in the middle section of the box body cavity and between the crushing assembly and the sand mixing assembly;

[0014] The crushing assembly comprises a first support plate fixedly connected to the outer wall of the box body, a first motor fixedly connected to the top of the first support plate, a first gear fixedly connected to the output end of the first motor, a first rotating rod fixedly connected to the end of the first gear away from the first motor, and a second rotating rod rotatably connected between the side walls of the box body and extending outwardly through the side walls of the box body, the outer walls of the first rotating rod and the second rotating rod are fixedly connected with crushing rollers, the extending end of the second rotating rod is fixedly connected with a second gear, the first gear and the second gear are engaged, and the interiors of the first rotating rod and the second rotating rod are provided with electric heating wires;

[0015] The screening assembly comprises a first screening net fixedly connected to the inner wall of the box body, a limiting slide channel opened in the side wall of the box body, a second screening net slidingly connected to the inner wall of the limiting slide channel, a second support plate fixedly connected to the outer wall of the box body, a fixed base fixedly connected to the top of the second support plate, a moving rod fixedly connected to the end of the second screening net close to the fixed base, a limiting block fixedly connected to the end of the moving rod away from the fixed base, a spring fixedly connected between the fixed base and the limiting block and sleeved on the outer wall of the moving rod, a second motor fixedly connected to the top of the second support plate, and a cam fixedly connected to the output end of the second motor, one end of the moving rod passing through the fixed base abuts against the cam;

[0016] The side wall of the box body is further fixedly connected with an auger, the bottom inlet of the auger is fixedly connected with a receiving box, the top outlet of the auger is located above the material inlet, the side wall of the box body is provided with a discharging chute, and the receiving box and the discharging chute are in communication.

[0017] As a preferred technical scheme of the present application, the sand mixing assembly comprises a supporting vertical plate fixedly connected to the bottom of the box, a third motor fixedly connected to the side wall of the supporting vertical plate, a rotating block fixedly connected to the driving end of the third motor, a connecting rod fixedly connected to the outer wall of the rotating block, a stirring rod rotatably connected to one end of the connecting rod away from the rotating block and penetrating through the connecting rod, a third gear fixedly connected to one end of the stirring rod close to the bottom wall of the box, and a fourth gear fixedly connected to the inner bottom wall of the box.

[0018] As a preferred technical scheme of the present application, the side wall of the box is provided with a material outlet, and the bottom of the box is fixedly connected with supporting legs.

[0019] As a preferred technical scheme of the present application, the top of the first supporting plate and the second supporting plate is provided with a protective cover.

[0020] Compared with the prior art, the present application has the following beneficial effects:

[0021] In the scheme of the present application:

[0022] Through the screening assembly, the sand particles after the crushing roller crushing treatment fall to the first screening net, the first screening net is inclined, the sand particles with a larger size fall into the receiving box through the discharge chute, the auger lifts the sand particles with a larger size to the material inlet for re-crushing treatment, and the sand particles with a qualified size fall to the bottom of the box, so that the screening and selection of the sand particles are realized, and the screening treatment device without material after the crushing mechanism crushing in the prior art is solved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is an overall structure schematic view of a sand mixing device for a casting machine provided by the present application;

[0024] Figure 2 It is a cross-sectional structure schematic view of a sand mixing device for a casting machine provided by the present application;

[0025] Figure 3 It is a cross-sectional structure schematic view of a sand mixing device for a casting machine provided by the present application;

[0026] Figure 4 It is an enlarged schematic view of structure A of a sand mixing device for a casting machine provided by the present application;

[0027] Figure 5 It is a sand mixing assembly structure schematic view of a sand mixing device for a casting machine provided by the present application;

[0028] Figure 6 Fig. 2 is a schematic diagram of the overall structure of a sand mixing device for a casting machine according to an embodiment of the present application.

[0029] Indicated in the figure are:

[0030] 1, box; 2, material inlet; 3, crushing assembly; 301, first support plate; 302, first motor; 303, first gear; 304, first rotating rod; 305, second rotating rod; 306, crushing roller; 307, second gear; 4, sand mixing assembly; 401, support vertical plate; 402, third motor; 403, rotating block; 404, connecting rod; 405, stirring rod; 406, third gear; 407, fourth gear; 408, stirring paddle; 5, screening assembly; 501, first screening net; 502, limiting slide; 503, second screening net; 504, second support plate; 505, fixed base; 506, moving rod; 507, limiting block; 508, spring; 509, second motor; 510, cam; 6, auger; 7, material receiving box; 8, discharge chute; 9, material outlet; 10, support leg. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments.

[0032] Therefore, the following detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but only represents some embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0033] It should be noted that the embodiments in the present application and the features and technical schemes in the embodiments can be combined with each other without conflict.

[0034] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0035] As Figures 1-6 shown, the present embodiment proposes a sand mixing device for a casting machine, which comprises a box 1, the box 1 is hollow inside and is provided with a material inlet 2 at the top, and further comprises:

[0036] a crushing assembly 3, the crushing assembly 3 is arranged on the inner side wall of the box 1 and is located below the material inlet 2;

[0037] A sand mixing assembly 4 is arranged on the inner wall of the bottom of the box 1.

[0038] A screening assembly 5 is arranged in the middle of the cavity of the box 1 between the crushing assembly 3 and the sand mixing assembly 4.

[0039] The crushing assembly 3 comprises a first support plate 301 fixedly connected to the outer wall of the box 1, a first motor 302 fixedly connected to the top of the first support plate 301, a first gear 303 fixedly connected to the output end of the first motor 302, a first rotating rod 304 fixedly connected to the end of the first gear 303 away from the first motor 302, and a second rotating rod 305 rotatably connected between the side walls of the box 1 and extending outwardly through the side walls of the box 1, wherein the outer wall of the first rotating rod 304 and the second rotating rod 305 is fixedly connected with a crushing roller 306, the extending end of the second rotating rod 305 is fixedly connected with a second gear 307, the first gear 303 and the second gear 307 are engaged, and the inside of the first rotating rod 304 and the second rotating rod 305 is provided with an electric heating wire.

[0040] The screening assembly 5 comprises a first screening net 501 fixedly connected to the inner wall of the box 1, a limiting slide 502 arranged on the side wall of the box 1, a second screening net 503 slidably connected to the inner wall of the limiting slide 502, a second support plate 504 fixedly connected to the outer wall of the box 1, a fixed base 505 fixedly connected to the top of the second support plate 504, a moving rod 506 fixedly connected to the end of the second screening net 503 close to the fixed base 505, a limiting block 507 fixedly connected to the end of the moving rod 506 away from the fixed base 505, a spring 508 fixedly connected between the fixed base 505 and the limiting block 507 and sleeved on the outer wall of the moving rod 506, a second motor 509 fixedly connected to the top of the second support plate 504, and a cam 510 fixedly connected to the output end of the second motor 509, wherein the end of the moving rod 506 passing through the fixed base 505 abuts against the cam 510.

[0041] The side wall of the box 1 is further fixedly connected with an auger 6, the bottom feed inlet of the auger 6 is fixedly connected with a receiving box 7, the top discharge outlet of the auger 6 is located above the material inlet 2, the side wall of the box 1 is provided with a discharge slot 8, and the receiving box 7 is in communication with the discharge slot 8.

[0042] As Figure 3 and Figure 5As shown, in a preferred embodiment, based on the above method, the sand mixing assembly 4 further includes a support vertical plate 401 fixedly connected to the bottom of the box 1, a third motor 402 fixedly connected to the side wall of the support vertical plate 401, a rotating block 403 fixedly connected to the drive end of the third motor 402, a connecting rod 404 fixedly connected to the outer wall of the rotating block 403, a stirring rod 405 rotatably connected to the end of the connecting rod 404 away from the rotating block 403 and passing through the connecting rod 404, a third gear 406 fixedly connected to the end of the stirring rod 405 near the bottom wall of the box 1, and a fourth gear 407 fixedly connected to the inner bottom wall of the box 1. The outer wall of the stirring rod 405 is provided with stirring blades 408, and the third gear 406 meshes with the fourth gear 407.

[0043] like Figure 6 As shown, in a preferred embodiment, based on the above method, the side wall of the box 1 is provided with a material outlet 9, and the bottom of the box 1 is fixedly connected with a support leg 10.

[0044] like Figure 6 As shown, in a preferred embodiment, based on the above method, a protective cover is further installed on the top of the first support plate 301 and the second support plate 504.

[0045] Specifically, the sand mixing device for the casting machine in use: the sand particles to be mixed are poured into the material inlet 2, as the sand particles enter the box 1, the first motor 302 and the electric heating wire are started, the driving end of the first motor 302 rotates clockwise to drive the first gear 303 and the first rotating rod 304 to rotate clockwise, the first gear 303 rotates clockwise to drive the second gear 307 meshed therewith to rotate counterclockwise, further, the second gear 307 drives the second rotating rod 305 to rotate counterclockwise, the first rotating rod 304 drives the crushing roller 306 on the outer wall thereof to rotate clockwise, and the second rotating rod 305 drives the crushing roller 306 on the outer wall thereof to rotate counterclockwise, so that the crushing roller 306 is used for crushing the larger materials, the heating treatment of the electric heating wire can effectively prevent the sand particles from caking, and the crushing treatment of the materials is more sufficient, the sand particles after the crushing treatment of the crushing roller 306 fall onto the first screening net 501, the first screening net 501 is arranged obliquely, the sand particles with a larger size fall into the receiving box 7 through the discharge groove 8, the auger 6 lifts the sand particles with a larger size to the material inlet 2 for crushing treatment again, and the sand particles with a qualified size fall to the bottom of the box 1, in the screening process, the second motor 509 is started, the rotation of the second motor 509 drives the cam 510 to rotate, when the protruding end of the cam 510 is in contact with the limiting block 507, the cam 510 drives the moving rod 506 to move, further driving the second screening net 503 to slide in the limiting slide 502, when the recessed end of the cam 510 is in contact with the limiting block 507, the moving rod 506 drives the second screening net 503 to reset under the rebound force of the spring 508, the reciprocating linear motion of the second screening net 503 can effectively prevent the materials from blocking the mesh of the screening net, thereby improving the screening efficiency, after the sand particles pass through the screening net, the sand particles fall into the bottom of the box 1, at this time, the third motor 402 is started, the third motor 402 drives the rotating block 403 to rotate, further driving the connecting rod 404 and the stirring rod 405 to make a circular motion in the box 1, at the same time, the third gear 406 starts to rotate under the action of the fourth gear 407 meshed therewith, thereby driving the stirring rod 405 to rotate, the stirring paddle 408 is used for sufficiently stirring and mixing the sand particles, and after the sand mixing is completed, the sand particles are discharged through the material outlet 9.

[0046] All the technical features in the embodiment can be freely combined according to actual needs.

[0047] The above embodiment is a preferred implementation scheme of the utility model, in addition, the utility model can be implemented in other ways, and any obvious replacement without departing from the technical scheme concept is within the protection scope of the utility model.

Claims

1. A sand mixing device for a casting machine, comprising a housing (1), characterized in that, The box (1) is hollow inside and is provided with a material inlet (2) at the top, further comprising: a crushing assembly (3) arranged on the inner side wall of the box (1) and below the material inlet (2); a sand mixing assembly (4) mounted on the bottom inner wall of the box (1); a screening assembly (5) arranged in the middle section of the cavity of the box (1) and between the crushing assembly (3) and the sand mixing assembly (4); wherein the crushing assembly (3) comprises a first support plate (301) fixedly connected to the outer wall of the box (1), a first motor (302) fixedly connected to the top of the first support plate (301), a first gear (303) fixedly connected to the output end of the first motor (302), a first rotating rod (304) fixedly connected to the end of the first gear (303) away from the first motor (302), and a second rotating rod (305) rotatably connected between the side walls of the box (1) and extending outwardly through the side walls of the box (1), the outer walls of the first rotating rod (304) and the second rotating rod (305) being fixedly connected with a crushing roller (306), the extending end of the second rotating rod (305) being fixedly connected with a second gear (307), the first gear (303) and the second gear (307) being engaged, and the interiors of the first rotating rod (304) and the second rotating rod (305) being provided with an electric heating wire; wherein the screening assembly (5) comprises a first screening net (501) fixedly connected to the inner wall of the box (1), a limiting slide (502) opened in the side wall of the box (1), a second screening net (503) slidingly connected to the inner wall of the limiting slide (502), a second support plate (504) fixedly connected to the outer wall of the box (1), a fixed base (505) fixedly connected to the top of the second support plate (504), a moving rod (506) fixedly connected to the end of the second screening net (503) close to the fixed base (505), a limiting block (507) fixedly connected to the end of the moving rod (506) away from the fixed base (505), a spring (508) fixedly connected between the fixed base (505) and the limiting block (507) and sleeved on the outer wall of the moving rod (506), a second motor (509) fixedly connected to the top of the second support plate (504), and a cam (510) fixedly connected to the output end of the second motor (509), the end of the moving rod (506) passing through the fixed base (505) abutting against the cam (510); wherein the side wall of the box (1) is further fixedly connected with an auger (6), the bottom inlet of the auger (6) is fixedly connected with a receiving box (7), the top outlet of the auger (6) is located above the material inlet (2), the side wall of the box (1) is provided with a discharge chute (8), and the receiving box (7) is in communication with the discharge chute (8).

2. A sand mixer for a foundry machine according to claim 1, wherein The sand mixing assembly (4) comprises a supporting vertical plate (401) fixedly connected to the bottom of the box body (1), a third motor (402) fixedly connected to the side wall of the supporting vertical plate (401), a rotating block (403) fixedly connected to the driving end of the third motor (402), a connecting rod (404) fixedly connected to the outer wall of the rotating block (403), a stirring rod (405) rotatably connected to one end of the connecting rod (404) away from the rotating block (403) and penetrating through the connecting rod (404), a third gear (406) fixedly connected to one end of the stirring rod (405) close to the bottom wall of the box body (1), and a fourth gear (407) fixedly connected to the inner bottom wall of the box body (1), wherein the outer wall of the stirring rod (405) is provided with stirring paddles (408), and the third gear (406) is engaged with the fourth gear (407).

3. A sand mixer for a foundry machine according to claim 1, wherein The side wall of the box body (1) is provided with a material outlet (9), and the bottom of the box body (1) is fixedly connected with supporting legs (10).

4. A sand mixer for a foundry machine according to claim 1, wherein The top of the first supporting plate (301) and the second supporting plate (504) is provided with a protective cover.

Images