Precoated sand shell production sand feeding device for casting

Abstract

The utility model discloses a precoated sand shell production sand feeding device for casting, and relates to the technical field of mechanical engineering, the precoated sand shell production sand feeding device comprises a bottom plate, a plurality of supporting legs are fixedly connected to the outer wall of the top of the bottom plate, a conveying belt is fixedly connected to the outer walls of the tops of the supporting legs, and a fixing frame is fixedly connected to the outer wall of the conveying belt; a first motor is fixedly connected to the outer wall of the top of the fixing frame, a rotating shaft is arranged, a second motor operates to drive the rotating shaft to rotate, a third belt wheel is driven to rotate when the rotating shaft rotates, a cam is driven to rotate when the rotating shaft and a second rotating shaft rotate, and when the cam rotates, a screen is continuously jacked upwards; according to the precoated sand screening device, the screening net slides on the surface of the sliding rod, at the moment, the screening net continuously shakes, sand on the screening net is screened, the screening effect is achieved, sand grains are more uniform, and therefore the fluidity and the filling performance of precoated sand are improved, and the surface quality and the size precision of castings are ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical engineering technical field, especially relate to the production sand delivery device of coated sand shell for casting. BACKGROUND

[0002] Coated sand is a new type of molding material for casting, with high strength, low gas, high temperature resistance and many excellent properties, which has been widely used in precision casting production in many fields such as automobile, machinery manufacturing, aerospace, etc. For example, the cylinder body of automobile engine, the cylinder body casted by using coated sand has better dimensional accuracy and surface quality, which can effectively improve the performance and reliability of the engine.

[0003] The existing equipment generally adopts the direct transmission mode when transmitting coated sand, which will cause the coated sand to contain impurities, thereby affecting the subsequent production quality, and part of the coated sand will be left on the conveying belt after transportation, which will greatly affect the next transportation. UTILITY MODEL CONTENTS

[0004] The utility model discloses a coated sand shell production sand delivery device for casting, which is provided with a rotating shaft and a scraper, and solves the problem that the existing equipment generally adopts the direct transmission mode when transmitting coated sand, which will cause the coated sand to contain impurities, thereby affecting the subsequent production quality, and part of the coated sand will be left on the conveying belt after transportation, which will greatly affect the next transportation.

[0005] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0006] The utility model discloses a coated sand shell production sand delivery device for casting, which is provided with a rotating shaft and a scraper, and solves the problem that the existing equipment generally adopts the direct transmission mode when transmitting coated sand, which will cause the coated sand to contain impurities, thereby affecting the subsequent production quality, and part of the coated sand will be left on the conveying belt after transportation, which will greatly affect the next transportation.

[0007] The top outer wall of the conveying belt is provided with a screening mechanism, the screening mechanism comprises a hollow box, the bottom outer wall of the hollow box is fixedly connected with the top outer wall of the conveying belt, the inner wall of the hollow box is provided with a sundry outlet, the inner wall of the hollow box is provided with a plurality of chute, the inner wall of the plurality of chute is fixedly connected with a sliding rod, the outer wall of the plurality of sliding rods is slidably connected with a bearing plate, the top outer wall of the plurality of bearing plates is fixedly connected with a screen, the outer wall of the hollow box is fixedly connected with a second fixed frame, the top outer wall of the second fixed frame is fixedly connected with a second motor, the bottom output end of the second motor is fixedly connected with a rotating shaft through a shaft coupling, the outer wall of the rotating shaft is fixedly connected with a belt pulley three, the inner wall of the belt pulley three is drivingly connected with a belt two, the inner wall of the belt two is drivingly connected with a belt pulley four, the inner wall of the belt pulley four is fixedly connected with a rotating shaft two, the outer wall of the rotating shaft two is rotatably connected with the inner wall of the hollow box, the rotating shaft two and the outer wall of the hollow box are fixedly connected with a cam, the outer wall of the cam is in contact with the bottom outer wall of the screen, the top outer wall of the bottom plate is fixedly connected with a collecting box, and the top outer wall of the bottom plate is provided with a cleaning mechanism.

[0008] Through the above technical scheme, the first motor is fixed by the fixed frame, so that the first motor is more stable during operation.

[0009] Further, the cleaning mechanism comprises a plurality of support plates, the bottom outer wall of the plurality of support plates is fixedly connected with the top outer wall of the bottom plate, the outer wall of the plurality of support plates is fixedly connected with a connecting plate, the inner wall of the plurality of support plates is provided with a second chute, the inner wall of the plurality of second chutes is slidably connected with a sliding shaft, and the outer wall of the plurality of sliding shafts is sleeved with a spring.

[0010] Through the above technical scheme, the sliding shaft can slide in the second chute by opening the second chute.

[0011] Further, the outer wall of one end of the plurality of sliding shafts away from the second chute is fixedly connected with a fixed plate, and the outer wall of one side of the fixed plate away from the sliding shaft is fixedly connected with a scraper.

[0012] Through the above technical scheme, the scraper is used for scraping the sand adhered to the surface of the conveying belt, so as to prevent the sand from affecting the subsequent operation.

[0013] Further, the top outer wall of one of the fixed plates is fixedly connected with a sponge pad, and the top outer wall of the bottom plate is fixedly connected with a water pump.

[0014] Through the above technical scheme, the sponge pad is used for wiping the conveying belt after cleaning, so as to prevent water stains from remaining on the surface of the conveying belt.

[0015] Further, the bottom output end of the water pump is fixedly connected with a connecting pipe, and an outer wall of an end of the connecting pipe away from the water pump is fixedly connected with a storage tank.

[0016] Through the above technical scheme, the water is stored in the storage tank, and the subsequent cleaning of the conveying belt is facilitated.

[0017] Further, the top outer wall of the storage tank is fixedly connected with the top outer wall of the bottom plate, and an outer wall of an end of the water pump away from the connecting pipe is fixedly connected with a water delivery pipe.

[0018] Through the above technical scheme, the water pump can deliver water from the storage tank through the water delivery pipe.

[0019] Further, an outer wall of an end of the water delivery pipe away from the water pump is fixedly connected with a water storage plate, and the water delivery pipe penetrates through the connecting plate to the outer wall.

[0020] Through the above technical scheme, the water delivered through the water delivery pipe is stored in the water storage plate, and subsequent storage is facilitated.

[0021] Further, an inner wall of the water storage plate is fixedly connected with a spray head, and an inner wall of the storage tank is fixedly connected with a filter plate.

[0022] Through the above technical scheme, the water in the water storage plate can be sprayed on the conveying belt through the spray head.

[0023] The utility model has the following beneficial effects:

[0024] 1, the utility model discloses a rotating shaft is set up, and the second motor is started, and the second motor operation will take rotating shaft rotation, and when rotating shaft rotates, will drive the belt pulley three to rotate, and when the belt pulley three will take belt two and rotate, and when belt two rotates, will drive the belt pulley four to rotate, and the belt pulley four rotation will take rotating shaft two and rotate, and when rotating shaft and rotating shaft two rotate, will drive the cam to rotate, and when the cam rotates, the screen cloth is constantly lifted upwards, and the screen cloth slides on the surface of the slide rod, and at this moment, the screen cloth will constantly shake, and the sand on the screen cloth is screened, reaches the screening effect, and the sand particle is more uniform, thereby improves the flowability and filling property of the coated sand, and guarantees the surface quality and dimensional accuracy of the casting.

[0025] 2, the utility model discloses a scraper is set, when the surface of the conveyer belt is in contact with the scraper, the scraper will be extruded and retract, in the process of retracting, the spring will be extruded, and the spring will also exert the opposite force on the scraper to make the scraper adhere to the surface of the conveyer belt and clean the sand adhered on the conveyer belt, then start the water pump, the water pump will extract the water stored in the storage tank through the connecting pipe, then transmit to the water storage plate through the water pipe, then the water storage plate will clean the surface of the conveyer belt through the spray head, prevent the sand on the surface, finally, the sponge pad is used to clean the water stain remaining on the surface of the conveyer belt, the effect of cleaning the conveyer belt is achieved, the residual sand particles can not continuously accumulate, the surface of the conveyer belt is not uneven, and the running resistance of the conveyer belt is increased.

[0026] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages mentioned above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0028] Figure 1 It is the whole structure schematic view of the utility model;

[0029] Figure 2 It is the whole structure sectional view of the utility model;

[0030] Figure 3 It is the utility model Figure 2 The enlarged view of A place;

[0031] Figure 4 It is the right view structure schematic view of the utility model;

[0032] Figure 5 It is the sectional view of the utility model sliding groove two structure;

[0033] Figure 6 It is the utility model Figure 5 The enlarged view of B place.

[0034] In the drawings, the component list represented by each sign is as follows:

[0035] 1, bottom plate; 101, support leg; 102, conveyor belt; 103, fixed frame; 104, first motor; 105, rotating shaft; 106, pulley; 107, belt; 108, pulley two; 109, rotating shaft two; 2, screening mechanism; 201, hollow box; 202, sundry outlet; 203, screen; 204, chute; 205, slide bar; 206, bearing plate; 207, rotating shaft; 208, cam; 209, fixed frame two; 210, second motor; 211, pulley three; 212, belt two; 213, rotating shaft two; 214, pulley four; 215, collection box; 3, cleaning mechanism; 301, support plate; 302, connecting plate; 303, chute two; 304, sliding shaft; 305, spring; 306, fixed plate; 307, scraper; 308, sponge pad; 309, storage box; 310, filter plate; 311, water pump; 312, connecting pipe; 313, water delivery pipe; 314, water storage plate; 315, spray head. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] Please refer to Figures 1-6As shown, the utility model is for the production of coated sand shell sand feeding device for casting, including bottom plate 1, the top outer wall of bottom plate 1 is fixedly connected with several support legs 101, the top outer wall of several support legs 101 is fixedly connected with conveyer belt 102, support leg 101 is used to support conveyer belt 102, the outer wall of conveyer belt 102 is fixedly connected with fixed frame 103, the top outer wall of fixed frame 103 is fixedly connected with first motor 104, the bottom output end of first motor 104 is fixedly connected with rotating shaft 105 through coupling, the outer wall of rotating shaft 105 is fixedly connected with belt pulley 106, the inner wall of belt pulley 106 is transmissionly connected with belt 107, the inner wall of belt 107 is transmissionly connected with belt pulley two 108, the inner wall of belt pulley two 108 is fixedly connected with rotating shaft two 109, rotating shaft two 109 and rotating shaft 105 and conveyer belt 102 are all transmissionly connected, staff starts first motor 104, first motor 104 will drive rotating shaft 105 rotation, rotating shaft 105 rotation will drive belt pulley 106 rotation, belt pulley 106 rotation will drive belt 107 rotation, belt 107 rotation will drive belt pulley two 108 rotation, belt pulley two 108 rotation will drive rotating shaft two 109 rotation, at this time, conveyer belt 102 will start operation, the top outer wall of conveyer belt 102 is provided with screening mechanism 2, screening mechanism 2 includes hollow box 201, the bottom outer wall of hollow box 201 is fixedly connected with the top outer wall of conveyer belt 102, the inner wall of hollow box 201 is provided with sundries outlet 202, staff pours sand into the inside of hollow box 201, sand will first fall on screen 203, then after screening, the sand meeting the requirements will drop down, and the sand not meeting the requirements will fall into collecting box 215 through sundries outlet 202 and be collected, the inner wall of hollow box 201 is provided with several sliding grooves 204, the inner wall of several sliding grooves 204 is fixedly connected with slide rod 205, the outer wall of several slide rods 205 is slidably connected with bearing plate 206, the top outer wall of several bearing plates 206 is fixedly connected with screen 203, the outer wall of hollow box 201 is fixedly connected with fixed frame two 209, the top outer wall of fixed frame two 209 is fixedly connected with second motor 210, the bottom output end of second motor 210 is fixedly connected with rotating shaft 207 through coupling, the outer wall of rotating shaft 207 is fixedly connected with belt pulley three 211, the inner wall of belt pulley three 211 is transmissionly connected with belt two 212, the inner wall of belt two 212 is transmissionly connected with belt pulley four 214, the inner wall of belt pulley four 214 is fixedly connected with rotating shaft two 213, the outer wall of rotating shaft two 213 is rotationally connected with the inner wall of hollow box 201, the outer wall of rotating shaft two 213 and rotating shaft 207 are all fixedly connected with cam 208, the outer wall of cam 208 contacts with the bottom outer wall of screen 203, staff starts second motor 210, second motor 210 will drive rotating shaft 207 rotation, rotating shaft 207 rotation will drive 211 rotation, belt pulley three 211 rotation will drive belt two 212 rotation,When the belt two 212 rotates, the belt pulley four 214 will rotate, and the belt pulley four 214 will drive the shaft two 213 to rotate, and then the cam 208 on the shaft 207 and the shaft two 213 will rotate, and will keep colliding with the screen 203, so that the screen 203 keeps shaking, thereby realizing the screening of the sand, the top outer wall of the bottom plate 1 is fixedly connected with a collection box 215, and the top outer wall of the bottom plate 1 is provided with a cleaning mechanism 3.

[0038] The sand is poured into the hollow box 201, and the sand will first fall onto the screen 203, and then after screening, the sand meeting the requirements will fall down, and the sand not meeting the requirements will fall into the collection box 215 through the sundry outlet 202 for collection.

[0039] The cleaning mechanism 3 comprises a plurality of support plates 301, the bottom outer wall of the plurality of support plates 301 is fixedly connected with the top outer wall of the bottom plate 1, the outer wall of the plurality of support plates 301 is fixedly connected with a connecting plate 302, the support plate 301 is used for supporting and fixing the connecting plate 302, preventing it from falling off, the inner wall of the plurality of support plates 301 is provided with a sliding groove two 303, the inner wall of the plurality of sliding grooves two 303 is slidably connected with a sliding shaft 304, the outer wall of the plurality of sliding shafts 304 is sleeved with a spring 305, the outer wall of one end of the plurality of sliding shafts 304 away from the sliding groove two 303 is fixedly connected with a fixed plate 306, the outer wall of one side of the fixed plate 306 away from the sliding shaft 304 is fixedly connected with a scraper 307, the scraper 307 will be extruded when it contacts the conveying belt 102, the scraper 307 will retract backward when it is extruded, and the spring 305 will be extruded when it retracts, the top outer wall of one fixed plate 306 is fixedly connected with a sponge pad 308, the sponge pad 308 cleans the surface of the conveying belt after the conveying belt is cleaned, preventing water stains from existing on the surface of the conveying belt, thereby affecting the subsequent production quality, the top outer wall of the bottom plate 1 is fixedly connected with a water pump 311, the bottom output end of the water pump 311 is fixedly connected with a connecting pipe 312, and the outer wall of one end of the connecting pipe 312 away from the water pump 311 is fixedly connected with a storage box 309.

[0040] When the scraper 307 contacts the surface of the conveying belt, it will retract backward due to extrusion, and the spring 305 will be extruded in the process of retraction, and the spring 305 will also exert an opposite force on the scraper 307 to make the scraper 307 tightly adhere to the surface of the conveying belt and clean it.

[0041] The top outer wall of the storage box 309 is fixedly connected with the top outer wall of the bottom plate 1, the water pump 311 is fixedly connected with the water delivery pipe 313 away from the outer wall of one end of the connecting pipe 312, the outer wall of the other end of the water delivery pipe 313 is fixedly connected with the water storage plate 314, the water pump 311 extracts the water in the storage box 309 through the connecting pipe 312, and then the water is transmitted to the water storage plate 314 through the water delivery pipe 313 for subsequent use, the water delivery pipe 313 penetrates through the connecting plate 302 to the outer wall, the inner wall of the water storage plate 314 is fixedly connected with the spray head 315, and the inner wall of the storage box 309 is fixedly connected with the filter plate 310.

[0042] The staff starts the water pump 311, the water pump 311 extracts the water stored in the storage box 309 through the connecting pipe 312, then transmits the water to the water storage plate 314 through the water delivery pipe 313, and finally sprays the water through the spray head 315.

[0043] One specific application of the embodiment is:

[0044] When the staff needs to use the device, first pour the sand into the hollow box 201, the sand will first fall on the screen 203 when entering the hollow box 201, then start the second motor 210, the second motor 210 running will drive the rotating shaft 207 to rotate, when the rotating shaft 207 rotates, it will drive the belt pulley three 211 to rotate, when the belt pulley three 211 rotates, it will drive the belt two 212 to rotate, when the belt two 212 rotates, it will drive the belt pulley four 214 to rotate, the belt pulley four 214 rotates will drive the rotating shaft two 213 to rotate, when the rotating shaft 207 and the rotating shaft two 213 rotate, it will drive the cam 208 to rotate, when the cam 208 rotates, the screen 203 is constantly lifted up, the screen 203 slides on the surface of the slide rod 205, at this time the screen 203 will constantly shake, the sand on the screen 203 is screened, the sand that meets the production requirements will fall on the conveyor belt 102 below the hollow box 201 for next step use, and the sand that does not meet the requirements will remain on the screen 203 and will fall through the sundries outlet 202 to the collection box 215 when shaken, then the conveyor belt 102 will transport the qualified sand out, when the conveyor belt 102 transports the sand, the surface of the conveyor belt 102 will remain some sand, when the surface of the conveyor belt 102 contacts the scraper 307, the scraper 307 will be extruded to retract, in the process of retraction, the spring 305 will be extruded, at the same time, the spring 305 will also exert an opposite force on the scraper 307 to make the scraper 307 tightly adhere to the surface of the conveyor belt and clean the sand adhered on the conveyor belt 102, then start the water pump 311, the water pump 311 will extract the water stored in the storage tank 309 through the connecting pipe 312, then transmit to the water storage plate 314 through the water pipe 313, then the water storage plate 314 will clean the surface of the conveyor belt 102 through the nozzle 315 to prevent the surface from existing sand, finally, the sponge pad 308 cleans the water stains remaining on the surface of the conveyor belt 102.

[0045] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A sand delivery device for coated sand shell production for foundry use, comprising a base plate (1), characterised in that: The top outer wall of the bottom plate (1) is fixedly connected with a plurality of supporting legs (101), the top outer wall of the plurality of supporting legs (101) is fixedly connected with a conveying belt (102), the outer wall of the conveying belt (102) is fixedly connected with a fixing frame (103), the top outer wall of the fixing frame (103) is fixedly connected with a first motor (104), the bottom output end of the first motor (104) is fixedly connected with a rotating shaft (105) through a shaft coupling, the outer wall of the rotating shaft (105) is fixedly connected with a belt pulley (106), the inner wall of the belt pulley (106) is transmissionally connected with a belt (107), the inner wall of the belt (107) is transmissionally connected with a belt pulley two (108), the inner wall of the belt pulley two (108) is fixedly connected with a rotating shaft two (109), and the rotating shaft two (109), the rotating shaft (105) and the conveying belt (102) are all transmissionally connected; The top outer wall of the conveying belt (102) is provided with a screening mechanism (2), the screening mechanism (2) comprises a hollow box (201), the bottom outer wall of the hollow box (201) is fixedly connected with the top outer wall of the conveying belt (102), the inner wall of the hollow box (201) is provided with a sundry outlet (202), the inner wall of the hollow box (201) is provided with a plurality of chute (204), the inner wall of the plurality of chute (204) is fixedly connected with a sliding rod (205), the outer wall of the plurality of sliding rod (205) is slidingly connected with a bearing plate (206), the top outer wall of the plurality of bearing plate (206) is fixedly connected with a screen (203), the outer wall of the hollow box (201) is fixedly connected with a fixing frame two (209), the top outer wall of the fixing frame two (209) is fixedly connected with a second motor (210), the bottom output end of the second motor (210) is fixedly connected with a rotating shaft (207) through a shaft coupling, the outer wall of the rotating shaft (207) is fixedly connected with a belt pulley three (211), the inner wall of the belt pulley three (211) is transmissionally connected with a belt two (212), the inner wall of the belt two (212) is transmissionally connected with a belt pulley four (214), the inner wall of the belt pulley four (214) is fixedly connected with a rotating shaft two (213), the outer wall of the rotating shaft two (213) is rotationally connected with the inner wall of the hollow box (201), the rotating shaft two (213) and the outer part of the hollow box (201) are both fixedly connected with a cam (208), the outer wall of the cam (208) is in contact with the bottom outer wall of the screen (203), the top outer wall of the bottom plate (1) is fixedly connected with a collecting box (215), and the top outer wall of the bottom plate (1) is provided with a cleaning mechanism (3).

2. The coated sand shell production sand delivery apparatus for foundry use according to claim 1, characterized by, The cleaning mechanism (3) comprises a plurality of support plates (301), the bottom outer wall of the plurality of support plates (301) is fixedly connected with the top outer wall of the bottom plate (1), the outer wall of the plurality of support plates (301) is fixedly connected with a connecting plate (302), the inner wall of the plurality of support plates (301) is provided with a sliding groove two (303), the inner wall of the plurality of sliding grooves two (303) is slidably connected with a sliding shaft (304), and the outer wall of the plurality of sliding shafts (304) is sleeved with a spring (305).

3. The coated sand shell production sand delivery apparatus of claim 2, wherein, The outer wall of one end of the plurality of sliding shafts (304) away from the sliding groove two (303) is fixedly connected with a fixed plate (306), and the outer wall of one side of the fixed plate (306) away from the sliding shaft (304) is fixedly connected with a scraper (307).

4. The coated sand shell production sand delivery apparatus of claim 3, wherein, The top outer wall of one of the fixed plates (306) is fixedly connected with a sponge pad (308), and the top outer wall of the bottom plate (1) is fixedly connected with a water pump (311).

5. The coated sand shell production sand delivery apparatus of claim 4, wherein, The bottom output end of the water pump (311) is fixedly connected with a connecting pipe (312), and the outer wall of one end of the connecting pipe (312) away from the water pump (311) is fixedly connected with a storage tank (309).

6. The coated sand shell production sand delivery apparatus of claim 5, wherein, The top outer wall of the storage tank (309) is fixedly connected with the top outer wall of the bottom plate (1), and the outer wall of one end of the water pump (311) away from the connecting pipe (312) is fixedly connected with a water delivery pipe (313).

7. The coated sand shell production sand delivery apparatus of claim 6, wherein, The outer wall of one end of the water delivery pipe (313) away from the water pump (311) is fixedly connected with a water storage plate (314), and the water delivery pipe (313) penetrates through the connecting plate (302) to the outer wall.

8. The coated sand shell production sand delivery apparatus of claim 7, wherein, The inner wall of the water storage plate (314) is fixedly connected with a spray head (315), and the inner wall of the storage tank (309) is fixedly connected with a filter plate (310).

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