Automatic stirring and mixing device for precision molding sand

Abstract

The utility model discloses an automatic stirring and mixing device for precision modeling molding sand. The automatic stirring and mixing device comprises a stirring barrel, a storage device, a mixing device and a discharging device, the stirring barrel is supported and fixed below the supporting table through a supporting frame I, the top of the stirring barrel is fixedly connected with a supporting plate I below which a connecting barrel I is fixed, the bottom of the stirring barrel is fixedly connected with a mixing barrel above which a discharging groove is formed and below which a feeding groove is formed, and a connecting barrel II is fixedly connected to the top of the mixing barrel. One end of the water pipe is fixedly connected with the connecting cylinder I, and the other end is fixedly connected with the supporting plate I; the storage device is fixedly connected to the top of the supporting table through a supporting frame II; the discharging device is fixedly connected to the bottom of the stirring barrel; the mixing device is rotationally connected between the connecting cylinder I and the connecting cylinder II and on the inner side of the mixing cylinder. The molding sand mixing device can stir mixed molding sand raw materials in multiple directions, and the molding sand raw material mixing efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of precision casting, and particularly relates to an automatic stirring and mixing device for precision molding sand. Background Art

[0002] In the molding sand production process, a mixer is required to mix various raw materials evenly to ensure that the various raw materials are fully mixed. Most of the existing molding sand stirring and mixing devices use stirring blades for stirring. The stirring blades are fixed structures, which are prone to stirring dead angles, resulting in reduced product quality. Therefore, a precision molding sand automatic stirring and mixing device is needed to evenly stir and mix the molding sand raw materials so that the molding sand raw materials can be quickly mixed;

[0003] After searching, the prior art announcement number CN 217727041 U is a multi-stage stirring and mixing device for preparing composite molding sand, which performs primary mixing of the sand material with a relatively small proportion through a distribution mechanism, and then the distribution mechanism reciprocates above the mixing tank, so as to gradually spread the sand material in the distribution mechanism onto the sand material with a relatively large proportion in the mixing tank, and mix the sand material with a relatively small proportion with the sand material with a relatively large proportion through a stirring frame 1; however, the stirring position of the stirring frame 1 is fixed, and if the molding sand is located at a position that the stirring frame 1 cannot reach, it cannot be uniformly stirred and mixed;

[0004] The prior art announcement number is CN 220295793 U, which is a sand mixing device for clamp production. The device pours the sand to be mixed into the mixing body through the installed middle feed port, so that the sand falls on the load plate, and the sand reaching a certain weight enters the mixing body through the chute, and the auxiliary feed port filters the auxiliary items and pours them into the mixing body; then the driving motor drives the stirring rod to mix the raw materials in the mixing body; after the mixing is completed, the closing cover is opened, and the shielding cover in the device is opened by the circular shaft to take out the mixed sand; and the device pushes the cleaning block through the hydraulic cylinder to clean the sand inside the mixing body; the defect of the device is also that the stirring rod is fixed in position, and the sand that cannot contact the stirring rod is difficult to be uniformly stirred and mixed;

[0005] Therefore, a precise molding sand automatic stirring and mixing device is needed, which can stir and mix the molding sand raw materials in multiple directions to improve the mixing efficiency of the molding sand raw materials. Summary of the invention

[0006] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide an automatic stirring and mixing device for precision molding sand. The utility model stirs and mixes the molding sand raw materials in a stirring barrel in multiple directions through a mixing device, thereby improving the mixing efficiency of the molding sand raw materials and preventing uneven mixing of the molding sand raw materials from affecting the quality of castings.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] An automatic stirring and mixing device for precision molding sand comprises a stirring barrel, a storage device, a mixing device and a discharging device; the stirring barrel is supported and fixed under a support platform by a support frame I, the top of the stirring barrel is fixedly connected to a support plate I with a connecting barrel I fixed below, the bottom of the stirring barrel is fixedly connected to a mixing barrel with a discharge trough on the top and a feed trough on the bottom, the connecting barrel II is fixedly connected to the top of the mixing barrel, and one end of a water pipe is fixedly connected to the connecting barrel I, and the other end is fixedly connected to the support plate I; the storage device is fixedly connected to the top of the support platform by a support frame II; the mixing device is rotatably connected between the connecting barrels I and II and the inner side of the mixing barrel; the discharging device is fixedly connected to the bottom of the stirring barrel; the storage device comprises a storage barrel, a motor I, a scraper, a spiral blade I, a connecting pipe I, a liquid storage Bucket, water pump, support plate II; a pair of material storage barrels are provided, which are fixedly connected to the top of the support platform through the support frame II, the bottom of the material storage barrel is fixedly connected to the mixing barrel through the through hole on the support platform through the connecting pipe I, and the two ends of the support plate II are respectively fixedly connected to the pair of material storage barrels; a pair of motors I are provided, which are symmetrically fixedly connected to the two sides of the support plate II through the motor seat, and the output end of the motor I is fixedly connected to the scraper that fits the side wall of the material storage barrel through the through hole on the support plate II through the connecting shaft; the spiral blade I is located on the inner side of the connecting pipe I and is fixedly connected to the connecting shaft on the output end of the motor I; the liquid storage barrel is fixedly connected to the top of the support platform through the support frame II, and the bottom of the liquid storage barrel is fixedly connected to the water inlet of the water pump through the through hole on the support platform through a pipeline, and the water outlet of the water pump is fixedly connected to the water pipe through a connecting hose.

[0009] The mixing device includes a stirring mechanism, a motor III, a spiral blade II, a connecting shaft II, a conveying mechanism, and a rotating sleeve; the rotating sleeve is rotatably connected to the connecting tube I and the connecting tube II, and two groups of stirring mechanisms are symmetrically fixed on both sides of the rotating sleeve; the motor III is fixedly connected to the top of the support plate I through a motor seat; the connecting shaft II is fixedly connected to the inner side of the rotating sleeve through a connecting plate, and one end of the connecting shaft II passes through the through holes on the connecting tube I and the support plate I and is fixedly connected to the output end of the motor III, and the other end passes through the through holes on the connecting tube II and the mixing tube and is fixedly connected to the spiral blade II; the conveying mechanism is provided with two groups, which are symmetrically fixedly connected to the outside of the mixing tube.

[0010] The stirring mechanism is provided with a connecting box, blades, motor II, connecting plate I, connecting shaft I, and bevel gear I; one end of the connecting plate I is fixedly connected to the rotating sleeve, and the other end is fixedly connected to the motor II and the connecting box; one end of the connecting shaft I is rotatably connected to the bottom of the connecting box, and the other end passes through the through hole on the connecting plate I and is fixedly connected to the output end of the motor II, and a plurality of bevel gears are provided on the connecting shaft I; the blades are provided with a plurality of bevel gears, and the blades are fixedly connected to the bevel gear I through the through hole on the connecting box via the connecting shaft, and the bevel gear I is meshed with the bevel gear on the connecting shaft I.

[0011] The conveying mechanism is provided with a connecting pipe II, a conveying pipeline, an electric push cylinder, a sealing plate, a limiting plate and a protective shell; the conveying pipeline is fixedly connected to the mixing cylinder, and a slide groove is provided on the top of the conveying pipeline, one side is provided with a plurality of water outlet holes, and the other side is fixedly connected to the connecting cylinder II through the connecting pipe II; a pair of limiting plates are provided, which are symmetrically fixedly connected inside the conveying pipeline; the sealing plate is slidably connected between the conveying pipeline and the limiting plate, the through holes on the sealing plate correspond to the positions of the water outlet holes on the conveying pipeline, and the top end of the sealing plate is slidably connected in the slide groove at the top of the conveying pipeline; the electric push cylinder is fixedly connected to one side of the conveying pipeline through the protective shell, and the protruding end of the electric push cylinder passes through the through holes on the protective shell and is fixedly connected to the top end of the sealing plate through the connecting plate.

[0012] The discharging device includes a motor IV, a connecting plate II, a connecting plate III, a rotating ring, a rotating plate, and a gear I; the connecting plate III is fixedly connected to the bottom of the mixing barrel, and the connecting plate II is fixedly connected to the bottom of the connecting plate III through a plurality of connecting rods; the motor IV is fixedly connected to the connecting plate III through a motor seat, and a gear is fixedly connected to the output end of the motor IV; the rotating plate is provided with a plurality of connecting plates, which are rotatably connected between the connecting plate II and the connecting plate III through a connecting shaft, and the connecting shaft on the rotating plate passes through a through hole on the connecting plate III and is fixedly connected to the gear I; the rotating ring is rotatably connected above the connecting plate III, and a plurality of gear teeth are provided on the inner and outer sides of the rotating ring, and the gear teeth on the inner side of the rotating ring mesh with the gear I, and the gear teeth on the outer side mesh with the gear on the output end of the motor IV.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1) The motor I in the storage device drives the scraper and the spiral blade I to rotate, so that the spiral blade I sends the raw sand or auxiliary additives in the storage barrel into the mixing barrel through the connecting pipe I to prevent the raw sand or auxiliary additives from being hardened under the action of gravity and unable to enter the mixing barrel through the connecting pipe I; at the same time, the scraper scrapes off the raw sand or auxiliary additives attached to the side wall of the storage barrel to prevent the raw sand or auxiliary additives from remaining in the storage barrel, causing an imbalance in the molding sand ratio and affecting the quality of the casting;

[0015] 2) The water pump draws the binder into the connecting barrel Ⅰ and then enters the conveying pipeline through the connecting pipe Ⅱ in the conveying mechanism. Then the electric push cylinder extends to drive the sealing plate to rise, so that the through hole on the sealing plate is aligned with the water outlet hole on the conveying pipeline, so that the binder flows into the mixing barrel and mixes with the raw sand and auxiliary additives; at the same time, the motor Ⅲ in the mixing device drives the stirring mechanism to rotate, and the motor Ⅱ in the stirring mechanism controls the connecting shaft Ⅰ to drive the bevel gear Ⅰ to rotate, so that the blades rotate to stir the molding sand raw materials, so that the stirring mechanism stirs and mixes the molding sand raw materials in multiple directions, improves the mixing efficiency of the molding sand raw materials, and prevents the uneven mixing of the molding sand raw materials from affecting the quality of the castings; at the same time, the molding sand enters the mixing barrel through the feeding trough at the bottom of the mixing barrel, so that the spiral blade Ⅱ stirs the molding sand and mixes the molding sand raw materials more evenly; at the same time, the spiral blade Ⅱ lifts the molding sand upward, so that the molding sand enters between the mixing barrel and the mixing barrel again from the discharge trough of the mixing barrel, so as to continuously stir the molding sand at the bottom of the mixing barrel upward, stir and mix it, and improve the mixing efficiency of the raw sand, auxiliary additives and binder;

[0016] 3) After the mixing is completed, the motor IV drives the rotating ring to rotate, so that the gear I drives the rotating plate to rotate and open, and then the motor III reverses to control the connecting shaft II to drive the spiral blade II to send the molding sand in the mixing barrel and the mixing barrel out of the device from the discharge device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 This is a structural schematic diagram of an automatic stirring and mixing device for precision molding sand of the utility model;

[0018] Attached Figure 2 Yes Figure 1 A schematic diagram of the connection structure between the storage device and the support platform;

[0019] Attached Figure 3 Yes Figure 1 Schematic diagram of the internal structure of the mixing barrel;

[0020] Attached Figure 4 Yes Figure 1 Schematic diagram of the connection structure between the middle discharge device and the mixing barrel;

[0021] Attached Figure 5 Yes Figure 1 Schematic diagram of the connection structure between the mixing device and the stirring barrel;

[0022] Attached Figure 6 Yes Figure 5 A schematic diagram of the enlarged structure of part A;

[0023] Attached Figure 7 Yes Figure 5 A schematic diagram of the enlarged structure of part B;

[0024] Attached Figure 8 Yes Figure 1The structural diagram of the conveying mechanism;

[0025] Attached Fig. 9 Yes Figure 1 The structural diagram of the stirring mechanism;

[0026] In the figure: 1, mixing barrel; 101, support plate Ⅰ; 1011, connecting barrel Ⅰ; 102, mixing barrel; 1021, connecting barrel Ⅱ; 103, water pipe; 2, storage device; 201, material storage barrel; 2011, motor Ⅰ; 2012, scraper; 2013, spiral blade Ⅰ; 2014, connecting pipe Ⅰ; 202, liquid storage barrel; 2021, water pump; 203, support plate Ⅱ; 3, mixing device; 301, stirring mechanism; 3011, connecting box; 3012, blade; 3013, motor Ⅱ; 3014, connecting plate Ⅰ; 3015, connecting shaft Ⅰ ; 3016, bevel gear I; 302, motor III; 3021, spiral blade II; 3022, connecting shaft II; 303, conveying mechanism; 3031, connecting pipe II; 3032, conveying pipeline; 3033, electric push cylinder; 3034, sealing plate; 3035, limit plate; 3036, protective shell; 304, rotating sleeve; 4, discharge device; 401, motor IV; 402, connecting plate II; 403, connecting plate III; 4031, rotating ring; 404, rotating plate; 4041, gear I; 5, support frame I; 6, support table; 7, support frame II. DETAILED DESCRIPTION

[0027] To facilitate the understanding of those skilled in the art, Figure 1-9 , the technical solution of the utility model is further specifically described.

[0028] A precision molding sand automatic stirring and mixing device comprises a stirring barrel 1, a storage device 2, a mixing device 3, and a discharging device 4; the stirring barrel 1 is supported and fixed below a support platform 6 by a support frame Ⅰ5, the top of the stirring barrel 1 is fixedly connected to a support plate Ⅰ101 with a connecting barrel Ⅰ1011 fixed below, the bottom of the stirring barrel 1 is fixedly connected to a mixing barrel 102 with a discharge trough on the top and a feed trough on the bottom, the connecting barrel Ⅱ1021 is fixedly connected to the top of the mixing barrel 102, and one end of a water pipe is fixedly connected to the connecting barrel Ⅰ1011, and the other end is fixedly connected to the support plate Ⅰ101; the storage device 2 is fixedly connected to the support frame Ⅱ7 through the support frame Ⅱ7. The top of the support platform 6; the mixing device 3 is rotatably connected between the connecting cylinder Ⅰ1011, the connecting cylinder Ⅱ1021 and the inner side of the mixing cylinder 102; the discharging device 4 is fixedly connected to the bottom of the mixing barrel 1; the storage device 2 includes a storage barrel 201, a motor Ⅰ2011, a scraper 2012, a spiral blade Ⅰ2013, a connecting pipe Ⅰ2014, a liquid storage barrel 202, a water pump 2021, and a support plate Ⅱ203; the storage barrel 201 is provided with a pair, which is fixedly connected to the top of the support platform 6 through the support frame Ⅱ7, and the bottom of the storage barrel 201 is fixedly connected to the mixing barrel 1 through the connecting pipe Ⅰ2014 through the through hole on the support platform 6, and the support The two ends of plate II 203 are respectively fixedly connected to a pair of material storage barrels 201; the motor I 2011 is provided with a pair, which are symmetrically fixedly connected to the two sides of the support plate II 203 through the motor seat, and the output end of the motor I 2011 passes through the through hole on the support plate II 203 through the connecting shaft and is fixedly connected to the scraper 2012 that fits the side wall of the material storage barrel 201; the spiral blade I 2013 is located on the inner side of the connecting pipe I 2014 and is fixedly connected to the connecting shaft on the output end of the motor I 2011; the liquid storage barrel 202 is fixedly connected to the top of the support platform 6 through the support frame II 7, and the bottom of the liquid storage barrel 202 is connected to the water pump 201 through a pipeline passing through the through hole on the support platform 6 The water inlet of the water pump 2021 is fixedly connected, and the water outlet of the water pump 2021 is fixedly connected to the water pipe 103 through the connecting hose; the motor Ⅰ2011 drives the scraper 2012 and the spiral blade Ⅰ2013 to rotate, so that the spiral blade Ⅰ2013 sends the raw sand or auxiliary additives in the storage barrel 201 into the mixing barrel 1 through the connecting pipe Ⅰ2014, so as to prevent the raw sand or auxiliary additives from being hardened under the action of gravity and unable to enter the mixing barrel 1 through the connecting pipe Ⅰ2014; at the same time, the scraper 2012 scrapes off the raw sand or auxiliary additives attached to the side wall of the storage barrel 201, so as to prevent the raw sand or auxiliary additives from remaining in the storage barrel 201, causing an imbalance in the molding sand ratio and affecting the quality of the casting.

[0029] The mixing device 3 includes a stirring mechanism 301, a motor III 302, a spiral blade II 3021, a connecting shaft II 3022, a conveying mechanism 303, and a rotating sleeve 304; the rotating sleeve 304 is rotatably connected to the connecting cylinder I 1011 and the connecting cylinder II 1021, and two sets of stirring mechanisms 301 are symmetrically fixed on both sides of the rotating sleeve 304; the motor III 302 is fixedly connected to the top of the support plate I 101 through a motor seat; the connecting shaft II 3022 is fixedly connected to the inner side of the rotating sleeve 304 through a connecting plate, and one end of the connecting shaft II 3022 passes through the through holes on the connecting cylinder I 1011 and the support plate I 101 and is fixedly connected to the output end of the motor III 302, and the other end passes through the through holes on the connecting cylinder II 1021 and the mixing cylinder 102 and is fixedly connected to the spiral blade II 3021; ​​the conveying mechanism 30 There are two groups 3, which are symmetrically fixedly connected to the outside of the mixing barrel 102 respectively; the water pump 2021 draws the binder into the connecting barrel I 1011 and then adds the binder to the mixing barrel 1 through the conveying mechanism 303; at the same time, the motor III 302 drives the stirring mechanism 301 to rotate to stir and mix the raw sand, auxiliary additives and binder in the mixing barrel 1 to form molding sand; at the same time, the molding sand enters the mixing barrel 102 through the feeding groove at the bottom of the mixing barrel 102, so that the spiral blade II 3021 stirs the molding sand and mixes the molding sand raw materials more evenly; at the same time, the spiral blade II 3021 lifts the molding sand upward, so that the molding sand enters between the mixing barrel 1 and the mixing barrel 102 again from the discharge groove of the mixing barrel 102, so that the molding sand at the bottom of the mixing barrel 1 is continuously stirred upward, stirred and mixed, and the mixing efficiency of the raw sand, auxiliary additives and binder is improved.

[0030] The stirring mechanism 301 is provided with a connecting box 3011, blades 3012, a motor II 3013, a connecting plate I 3014, a connecting shaft I 3015, and a bevel gear I 3016; one end of the connecting plate I 3014 is fixedly connected to the rotating sleeve 304, and the other end is fixedly connected to the motor II 3013 and the connecting box 3011; one end of the connecting shaft I 3015 is rotatably connected to the bottom of the connecting box 3011, and the other end passes through the through hole on the connecting plate I 3014 and is fixedly connected to the output end of the motor II 3013, and a plurality of bevel gears are provided on the connecting shaft I 3015; There are several blades 3012, and the blades 3012 are fixedly connected to the bevel gear I 3016 through the through hole on the connecting box 3011 through the connecting shaft, and the bevel gear I 3016 is meshed with the bevel gear on the connecting shaft I 3015; the motor III 302 drives the stirring mechanism 301 to rotate, and the motor II 3013 controls the connecting shaft I 3015 to drive the bevel gear I 3016 to rotate, so that the blades 3012 rotate to stir the molding sand raw materials, so that the stirring mechanism 301 can achieve multi-directional stirring and mixing, improve the mixing efficiency of the molding sand raw materials, and prevent the uneven mixing of the molding sand raw materials from affecting the quality of the casting.

[0031] The conveying mechanism 303 is provided with a connecting pipe II 3031, a conveying pipeline 3032, an electric push cylinder 3033, a sealing plate 3034, a limiting plate 3035, and a protective shell 3036; the conveying pipeline 3032 is fixedly connected to the mixing barrel 102, and a slide groove is provided on the top of the conveying pipeline 3032, one side is provided with a plurality of water outlet holes, and the other side is fixedly connected to the connecting barrel II 1021 through the connecting pipe II 3031; the limiting plate 3035 is provided with a pair, which is symmetrically fixedly connected inside the conveying pipeline 3032; the sealing plate 3034 is slidably connected between the conveying pipeline 3032 and the limiting plate 3035, and the through hole on the sealing plate 3034 is aligned with the water outlet hole on the conveying pipeline 3032 The top of the sealing plate 3034 is slidably connected to the slide groove at the top of the conveying pipe 3032; the electric push cylinder 3033 is fixedly connected to one side of the conveying pipe 3032 through the protective shell 3036, and the protruding end of the electric push cylinder 3033 passes through the through hole on the protective shell and is fixedly connected to the top of the sealing plate 3034 through the connecting plate; after the water pump 2021 draws the adhesive into the connecting cylinder Ⅰ1011, the adhesive enters the conveying pipe 3032 through the connecting pipe Ⅱ3031, and then the electric push cylinder 3033 extends to drive the sealing plate 3034 to rise, so that the through hole on the sealing plate 3034 is aligned with the water outlet hole on the conveying pipe 3032, so that the adhesive flows into the mixing barrel 1 and mixes with the original sand and auxiliary materials.

[0032] The discharging device 4 includes a motor IV 401, a connecting plate II 402, a connecting plate III 403, a rotating ring 4031, a rotating plate 404, and a gear I 4041; the connecting plate III 403 is fixedly connected to the bottom of the mixing barrel 1, and the connecting plate II 402 is fixedly connected to the bottom of the connecting plate III 403 through a plurality of connecting rods; the motor IV 401 is fixedly connected to the connecting plate III 403 through a motor seat, and a gear is fixedly connected to the output end of the motor IV 401; the rotating plate 404 is provided with a plurality of connecting shafts, which are rotatably connected between the connecting plate II 402 and the connecting plate III 403, and the connecting shaft on the rotating plate 404 passes through the connecting plate III 403. The through hole on the rotating ring 4031 is fixedly connected with the gear Ⅰ4041; the rotating ring 4031 is rotatably connected above the connecting plate Ⅲ403, and a plurality of gear teeth are provided on the inner and outer sides of the rotating ring 4031, and the gear teeth on the inner side of the rotating ring 4031 are meshed with the gear Ⅰ4041, and the gear teeth on the outer side are meshed with the gear on the output end of the motor Ⅳ401; after the mixing is completed, the motor Ⅳ401 drives the rotating ring 4031 to rotate, so that the gear Ⅰ4041 drives the rotating plate 404 to rotate and open, and then the motor Ⅲ302 reverses, controls the connecting shaft Ⅱ3022 to drive the spiral blade Ⅱ3021 to send the molding sand in the mixing barrel 1 and the mixing barrel 102 out of the device from the discharging device 4.

[0033] An automatic stirring and mixing device for precision molding sand, the working process is as follows:

[0034] The motor Ⅰ2011 in the storage device 2 drives the scraper 2012 and the spiral blade Ⅰ2013 to rotate. The scraper 2012 scrapes off the raw sand or additives attached to the side wall of the storage barrel 201. At the same time, the spiral blade Ⅰ2013 delivers the raw sand or additives in the storage barrel 201 to the mixing barrel 1 through the connecting pipe Ⅰ2014; at the same time, the water pump 2021 draws the binder into the connecting cylinder Ⅰ1011, and then the binder is added to the mixing barrel 1 through the conveying mechanism 303 in the mixing device 3; at the same time, the motor Ⅲ302 drives the stirring mechanism 301 to rotate to stir and mix the raw sand, additives and binder in the mixing barrel 1 in multiple directions; at the same time, the molding sand passes through the mixing barrel 102. The feeding trough at the bottom enters the mixing drum 102, and the spiral blade II 3021 stirs and mixes the molding sand while lifting the molding sand upward, so that the molding sand enters between the mixing drum 1 and the mixing drum 102 again from the discharge trough of the mixing drum 102, thereby continuously stirring the molding sand at the bottom of the mixing drum 1 upward for stirring and mixing it; after the mixing is completed, the motor IV 401 in the discharge device 4 drives the rotating ring 4031 to rotate, so that the gear I 4041 drives the rotating plate 404 to rotate and open, and then the motor III 302 reverses, controls the connecting shaft II 3022 to drive the spiral blade II 3021 to send the molding sand in the mixing drum 1 and the mixing drum 102 out of the device from the discharge device 4.

[0035] To sum up, electronic or electrical components including but not limited to motors, electric cylinders, water pumps, etc. are components in the prior art, obtained through private customization or purchase, and the electrical connections between the components are conventional circuit connections in the prior art and are not within the scope of protection of the present utility model.

[0036] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. An automatic stirring and mixing device for precision molding sand, comprising a stirring barrel, a storage device, a mixing device, and a discharge device; characterized in that The mixing barrel is supported and fixed below the support platform by a support frame I, the top of the mixing barrel is fixedly connected to a support plate I with a connecting barrel I fixed below, the bottom of the mixing barrel is fixedly connected to a mixing barrel with a discharge trough on the top and a feed trough on the bottom, the connecting barrel II is fixedly connected to the top of the mixing barrel, and one end of the water pipe is fixedly connected to the connecting barrel I, and the other end is fixedly connected to the support plate I; the storage device is fixedly connected to the top of the support platform through the support frame II; the mixing device is rotatably connected between the connecting barrel I and the connecting barrel II and the inner side of the mixing barrel; the discharge device is fixedly connected to the bottom of the mixing barrel; The mixing device includes a stirring mechanism, a motor III, a spiral blade II, a connecting shaft II, a conveying mechanism, and a rotating sleeve; the rotating sleeve is rotatably connected to the connecting tube I and the connecting tube II, and two groups of stirring mechanisms are symmetrically fixed on both sides of the rotating sleeve; the motor III is fixedly connected to the top of the support plate I through a motor seat; the connecting shaft II is fixedly connected to the inner side of the rotating sleeve through a connecting plate, and one end of the connecting shaft II passes through the through holes on the connecting tube I and the support plate I and is fixedly connected to the output end of the motor III, and the other end passes through the through holes on the connecting tube II and the mixing tube and is fixedly connected to the spiral blade II; the conveying mechanism is provided with two groups, which are symmetrically fixedly connected to the outside of the mixing tube.

2. The automatic stirring and mixing device for precision molding sand according to claim 1 is characterized in that The stirring mechanism is provided with a connection box, blades, a motor II, a connection plate I, a connection shaft I, and a bevel gear I; one end of the connection plate I is fixedly connected to the rotating sleeve, and the other end is fixedly connected to the motor II and the connection box; One end of the connecting shaft I is rotatably connected to the bottom of the connecting box, and the other end passes through the through hole on the connecting plate I and is fixedly connected to the output end of the motor II, and a plurality of bevel gears are provided on the connecting shaft I; the blades are provided with a plurality of bevel gears, and the blades are fixedly connected to the bevel gear I through the through hole on the connecting box through the connecting shaft, and the bevel gear I is meshed with the bevel gear on the connecting shaft I.

3. The automatic stirring and mixing device for precision molding sand according to claim 1, characterized in that The conveying mechanism is provided with a connecting pipe II, a conveying pipeline, an electric push cylinder, a sealing plate, a limiting plate and a protective shell; the conveying pipeline is fixedly connected to the mixing cylinder, and a slide groove is provided on the top of the conveying pipeline, one side is provided with a plurality of water outlet holes, and the other side is fixedly connected to the connecting cylinder II through the connecting pipe II; a pair of limiting plates are provided, which are symmetrically fixedly connected inside the conveying pipeline; the sealing plate is slidably connected between the conveying pipeline and the limiting plate, the through holes on the sealing plate correspond to the positions of the water outlet holes on the conveying pipeline, and the top end of the sealing plate is slidably connected in the slide groove at the top of the conveying pipeline; the electric push cylinder is fixedly connected to one side of the conveying pipeline through the protective shell, and the protruding end of the electric push cylinder passes through the through holes on the protective shell and is fixedly connected to the top end of the sealing plate through the connecting plate.

4. The automatic stirring and mixing device for precision molding sand according to claim 1, characterized in that The storage device includes a material storage barrel, a motor I, a scraper, a spiral blade I, a connecting pipe I, a liquid storage barrel, a water pump, and a support plate II; a pair of material storage barrels are provided, which are fixedly connected to the top of the support platform through a supporting frame II, and the bottom of the material storage barrel is fixedly connected to the mixing barrel through a connecting pipe I passing through a through hole on the support platform, and the two ends of the support plate II are respectively fixedly connected to a pair of material storage barrels; a pair of motors I are provided, which are symmetrically fixedly connected to the two sides of the support plate II through a motor seat, and the output end of the motor I is fixedly connected to the scraper that fits the side wall of the material storage barrel through a connecting shaft passing through the through hole on the support plate II; the spiral blade I is located on the inner side of the connecting pipe I and is fixedly connected to the connecting shaft on the output end of the motor I; the liquid storage barrel is fixedly connected to the top of the support platform through a supporting frame II, and the bottom of the liquid storage barrel is fixedly connected to the water inlet of the water pump through a pipeline passing through the through hole on the support platform, and the water outlet of the water pump is fixedly connected to the water pipe through a connecting hose.

5. The automatic stirring and mixing device for precision molding sand according to claim 1, characterized in that The discharging device includes a motor IV, a connecting plate II, a connecting plate III, a rotating ring, a rotating plate, and a gear I; the connecting plate III is fixedly connected to the bottom of the mixing barrel, and the connecting plate II is fixedly connected to the bottom of the connecting plate III through a plurality of connecting rods; the motor IV is fixedly connected to the connecting plate III through a motor seat, and a gear is fixedly connected to the output end of the motor IV; the rotating plate is provided with a plurality of connecting plates, which are rotatably connected between the connecting plate II and the connecting plate III through a connecting shaft, and the connecting shaft on the rotating plate passes through a through hole on the connecting plate III and is fixedly connected to the gear I; the rotating ring is rotatably connected above the connecting plate III, and a plurality of gear teeth are provided on the inner and outer sides of the rotating ring, and the gear teeth on the inner side of the rotating ring mesh with the gear I, and the gear teeth on the outer side mesh with the gear on the output end of the motor IV.

Images