Quartz sand continuous automatic feeding and forming equipment

Abstract

The invention discloses quartz sand continuous automatic feeding and forming equipment which comprises a melting chamber, storage equipment, transition equipment and feeding equipment, the storage equipment comprises a storage barrel and a barrel frame, the transition equipment comprises a transition support and a transition barrel, the storage barrel is connected with the transition barrel through a transmission mechanism, and the transition barrel is connected with the melting chamber through a transmission mechanism. The feeding equipment comprises a feeding frame, a moving device, a tail end charging barrel assembly, a discharging pipe assembly and a rotating disc, the discharging pipe assembly communicates with the tail end charging barrel assembly, a servo motor is arranged on one side of the discharging pipe assembly, an output shaft of the servo motor is connected with the circle center of the rotating disc, and the lowermost end of the discharging pipe assembly is located above the edge of the rotating disc. A large number of raw materials are stored in the material storage equipment, the transition equipment is used for storing the raw materials needed by production on the day, then the materials are conveyed to the rotating disc through the tail end material barrel assembly and the discharging pipe assembly, the materials are thrown out into external mold equipment through centrifugal force generated when the rotating disc rotates, and the effect of automatic and uniform feeding is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of automatic feeding equipment, and in particular to equipment for continuous and automatic feeding and molding of quartz sand. Background Art

[0002] With the rapid development of photovoltaic and semiconductor industries, the demand for high-purity quartz crucibles is increasing. Traditional quartz crucible production is completed by manually operated quartz sand melting equipment. Among them, the quartz sand feeding and molding process directly determines the precision and quality of the finished product.

[0003] The process of pouring the quartz sand from a quartz sand bucket into the mold cavity of the melting equipment has problems such as low efficiency, uneven pouring, and easy mixing of air, which affects the quality of the final quartz crucible. The process of using a stainless steel forming rod to scrape the quartz sand flat against the rotating mold cavity wall has uneven force, making it difficult to control the thickness of the formed quartz sand, resulting in low molding accuracy, which in turn reduces the production yield of the quartz crucible and even leads to product scrapping, seriously affecting production capacity.

[0004] In addition, the lack of automation in the production process leads to a large demand for labor, and the production workshop of quartz crucibles is not suitable for long-term work due to environmental problems such as high temperature, high brightness, noise pollution and quartz sand dust pollution. In addition, the existing quartz sand feeding and molding process has the disadvantages of low feeding production efficiency, uneven feeding, easy mixing of air into the feeding, low molding precision and poor production environment due to manual work. In summary, it is urgent to develop a device for continuous automatic feeding and molding of quartz sand. In response to the above problems, a solution is proposed below. Summary of the invention

[0005] The purpose of the present invention is to provide a device for continuous and automatic feeding and molding of quartz sand, which has the advantages of high feeding efficiency, high feeding uniformity, difficult mixing of air into the feeding, high molding accuracy, high overall automation and good operation continuity.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A device for continuous and automatic feeding and molding of quartz sand, comprising a melting chamber, a material storage device, a transition device and a feeding device, wherein the material storage device comprises a material storage barrel and a material barrel rack, wherein the material storage barrel is fixed on the material barrel rack, and a weighing sensor 1 is arranged on the material barrel rack, and the weighing sensor 1 is used to monitor the overall weight of the material storage barrel, wherein the transition device comprises a transition bracket and a transition material barrel, wherein the transition material barrel is fixed on the transition bracket, and a weighing sensor 2 is arranged on the transition bracket, and the weighing sensor 2 is used to monitor the overall weight of the transition material barrel, wherein the material storage barrel and the transition material barrel are connected via a transmission mechanism, and the feeding device comprises a feeding rack, a mobile Device, terminal barrel assembly, discharge pipe assembly and turntable, the moving device is fixed on the feeding rack, the terminal barrel assembly is fixed on the moving device, the moving device is used to drive the terminal barrel assembly to move so that the terminal barrel assembly moves to the outlet of the transition barrel, the discharge pipe assembly is fixed at the lower end of the terminal barrel assembly and is communicated with the terminal barrel assembly, a servo motor is provided on one side of the lower end of the discharge pipe assembly, the output shaft of the servo motor is arranged downward, and the output shaft of the servo motor is connected to the center of the turntable, the turntable is located below the discharge pipe assembly, and the lowermost end of the discharge pipe assembly is located above the edge of the turntable.

[0007] Preferably, three storage barrels are provided, which are respectively an outer sand barrel, a middle sand barrel and an inner sand barrel; three filter barrels are provided, each filter barrel corresponds to one of the storage barrels; four weighing sensors 1 are provided on each storage barrel, and four weighing sensors 2 are provided on each filter barrel.

[0008] Preferably, the transmission mechanism is a screw conveyor, and three screw conveyors are provided. The screw conveyors are fixed on a barrel rack, and the feed inlet of the screw conveyor is connected to the discharge outlet of the storage barrel, and the discharge outlet of the screw conveyor is connected to the feed inlet of the transition barrel.

[0009] Preferably, a sleeve is connected to the discharge port of the transition barrel, the lower end of the sleeve is fixedly connected to the transition bracket, and a clamping valve is provided on the sleeve.

[0010] Preferably, the moving device includes a base plate, a moving motor, a moving gear, a rack and two parallel guide rails, the two guide rails are fixed on the feeding rack and are located below the three transition barrels, the length direction of the guide rails is the arrangement direction of the three transition barrels, the rack is fixed on one side of one of the guide rails and is arranged parallel to the guide rails, the two sides of the lower end of the base plate are respectively clamped on the two guide rails and are slidably connected to the guide rails, the moving motor is fixed on one side of the base plate, the output shaft of the moving motor is fixedly connected to the moving gear, and one side of the moving gear is meshed with the rack.

[0011] Preferably, the end barrel assembly includes a small barrel and several weighing sensors three, the discharge port of the small barrel is provided with a clamping valve two, the side wall of the small barrel is fixed with several angle irons, several weighing sensors three are respectively fixed on the lower end surfaces of the several angle irons, and the lower end of the weighing sensor three is fixedly connected to the bottom plate.

[0012] Preferably, the end barrel assembly also includes a barrel cover and a cylinder. A cylinder seat is fixedly provided on the side wall of the small barrel. The cylinder is fixed on the cylinder seat. The output shaft of the cylinder is arranged upward. A hinge block is hinged on the side wall of the upper end of the small barrel. One end of the hinge block is fixedly connected to the barrel cover, and the other end of the hinge block is hinged to the output shaft of the cylinder. The cylinder is used to open or close the barrel cover.

[0013] Preferably, the discharge pipe assembly includes a telescopic tube, a discharge pipe and a height adjustment mechanism, the discharge pipe is connected to the discharge port of the small barrel, the discharge pipe is fixed at the lower end of the telescopic tube, and the discharge pipe is used to put the sand in the small barrel onto the turntable.

[0014] Preferably, the height adjustment mechanism comprises two lifting motors, four wire rope reels and a lifting plate, the lowermost end of the telescopic tube is fixedly connected to the lifting plate, and the uppermost end of the discharging pipe is fixedly connected to the lifting plate, the two lifting motors are respectively located on both sides of the small material barrel, and a reducer is connected to the output shaft of the lifting motor, and a commutator is connected to the output shaft of the reducer, the commutator is fixed on the upper end surface of the bottom plate, and a wire rope reel is connected to the two output shafts of the commutator, the other end of the wire rope reel is connected to a bearing seat arranged on the upper end surface of the bottom plate, the commutator is used to drive the two wire rope reels to rotate synchronously, one end of the wire rope on the wire rope reel is adjusted in direction by a fixed pulley arranged on the lower end surface of the bottom plate and then hangs down vertically, the lowermost end of the wire rope is fixedly connected to the position of one corner of the lifting plate, and the wire ropes on the four wire rope reels are respectively fixed at the four corners of the lifting plate to keep the lifting plate horizontally set, and the two lifting motors operate synchronously to achieve adjustment of the height of the lifting plate.

[0015] Preferably, a counterweight block is fixedly provided on the lower end surface of the lifting plate, and the counterweight block is used to drive the lifting plate to move downward and keep the wire rope in a taut state.

[0016] The beneficial effects of the present invention are: 1. The present invention adopts a continuous automatic feeding system, which can continuously supply three types of sand (outer layer sand, middle layer sand, inner layer sand) used in the production process of quartz crucible in one loading. The rotating feeding device in the middle can evenly throw the quantitatively falling quartz sand at different positions on the mold wall through centrifugal force, which can greatly improve the production efficiency and solve the problem of easy mixing of air.

[0017] 2. In addition, the present invention adopts an industrial robot for automatic molding, and cooperates with a quick-change mechanism to switch the outer, middle and inner sand layer molding rods, which can quickly, effectively and accurately replace manual labor to complete the quartz sand molding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an embodiment; Figure 2 This is a schematic diagram of the structure of the feeding equipment used to illustrate the embodiment; Figure 3 This is a schematic diagram of the structure of the upper components of the base plate according to an embodiment.

[0019] Figure numerals: 1, melting chamber; 11, melting equipment; 12, mold; 2, storage equipment; 21, storage barrel; 22, barrel rack; 23, weighing sensor 1; 24, outer sand barrel; 25, middle sand barrel; 26, inner sand barrel; 3, transition equipment; 31, transition bracket; 32, transition barrel; 33, weighing sensor 2; 34, sleeve; 35, clamp valve 1; 4, feeding equipment; 41, feeding rack; 5, moving device; 51, bottom plate; 52, moving motor; 53, moving gear; 54, rack; 55, guide rail; 6 , end barrel assembly; 61, small barrel; 62, weighing sensor three; 63, angle iron; 64, barrel cover; 65, cylinder one; 66, cylinder seat one; 67, hinge block; 68, clamp valve two; 7, discharge pipe assembly; 71, telescopic tube; 72, discharge pipe; 73, lifting motor; 74, wire rope reel; 741, wire rope; 75, lifting plate; 76, reducer; 77, commutator; 78, fixed pulley; 79, counterweight; 8, turntable; 81, servo motor; 9, screw conveyor; 10, robot; 101, sand forming knife. DETAILED DESCRIPTION

[0020] The following is only a preferred embodiment of the present invention, and the protection scope is not limited to this embodiment. All technical solutions under the concept of the present invention should belong to the protection scope of the present invention. The same parts are represented by the same figure marks. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom" and "top", "inside" and "outside" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0021] like Figures 1 to 3 As shown, a device for continuous automatic feeding and molding of quartz sand includes a melting chamber 1, a storage device 2, a transition device 3 and a feeding device 4. The melting chamber 1 is an existing device for processing quartz sand. The structure in the melting chamber 1 mainly used in this application is: a melting device 11 that can be removed from the melting chamber 1 and a mold 12 located on the melting device 11. The melting device 11 can heat the inside of the mold 12, and the quartz sand needs to be fed into the mold 12.

[0022] The material storage device 2 includes a material storage barrel 21 and a material barrel rack 22. The material barrel rack 22 is fixed on the top of the melting chamber 1. A plurality of weighing sensors 23 are arranged on the material barrel rack 22. The material storage barrel 21 is fixed on the material barrel rack 22 through the plurality of weighing sensors 23. In the present application, three material storage barrels 21 are arranged, namely, an outer sand material barrel 24, a middle sand material barrel 25 and an inner sand material barrel 26. Each material storage barrel 21 can be loaded with about 1500 kg of high-purity quartz sand. According to the daily output of 20 32-inch quartz crucibles, each crucible needs to be fed with a total of about 100 kg of material. The sand in the three material storage barrels 21 is calculated by using 1 / 3 each, which can meet the material needs of automatic production for about 2 days. Each material storage barrel 21 is monitored in real time by four weighing sensors 23 so as to replenish the quartz sand in time.

[0023] The discharge port at the lower end of the storage barrel 21 is connected to a transmission mechanism. The transmission mechanism used in this application is a screw conveyor 9, which is fixed on the barrel frame 22. The screw conveyor 9 is an existing device, and the internal spiral auger blades can convey the quartz sand at the feed port to the discharge port. Three screw conveyors 9 are provided, which are connected to three storage barrels 21 respectively.

[0024] The transition equipment 3 includes a transition bracket 31 and a transition barrel 32. The transition bracket 31 is provided with a plurality of weighing sensors 2 33. The transition barrel 32 is fixed to the transition bracket 31 through the weighing sensors 2 33. In the present application, each transition barrel 32 can be loaded with about 700 kg of quartz sand, which is sufficient for at least one day's production. The weighing sensors 2 33 are used to monitor the overall weight of the transition barrel 32 in real time for automatic refilling.

[0025] There are three filter barrels, each of which corresponds to one of the storage barrels 21. Between the corresponding storage barrel 21 and the filter barrel, the feed inlet of the screw conveyor 9 is connected to the discharge port of the storage barrel 21, and the discharge port of the screw conveyor 9 is connected to the feed inlet of the transition barrel 32.

[0026] The feeding device 4 includes a feeding rack 41, a moving device 5, a terminal barrel assembly 6, a discharge pipe 72 assembly 7 and a turntable 8. The feeding rack 41 is placed on the ground, and the transition bracket 31 is fixed on the top of the feeding rack 41. The moving device 5 is fixed on the feeding rack 41, and the terminal barrel assembly 6 is fixed on the moving device 5. The moving device 5 includes a bottom plate 51, a moving motor 52, a moving gear 53, a rack 54 and two parallel guide rails 55. The two guide rails 55 are fixed on the feeding rack 41 and are located below the three transition barrels 32. The length direction of the guide rails 55 is the arrangement direction of the three transition barrels 32, that is, the moving device 5 can drive the terminal barrel assembly 6 to move below the three transition barrels 32. The two sides of the lower end of the bottom plate 51 are respectively clamped on the two guide rails 55 and are slidably connected with the guide rails 55. The moving motor 52 is fixed on one side of the bottom plate 51. The output shaft of the moving motor 52 is fixedly connected with the moving gear 53. The rack 54 is fixed on one side of one of the guide rails 55 and is arranged parallel to the guide rail 55. One side of the moving gear 53 is meshed with the rack 54. When the moving motor 52 is started, it will drive the moving gear 53 to rotate. When the moving gear 53 rotates, it will move along the rack 54, so that the moving motor 52 will drive the bottom plate 51 to move along the length direction of the rack 54.

[0027] The end barrel assembly 6 includes a small barrel 61 and several weighing sensors 3 62. Several angle irons 63 are arranged on the side wall outside the small barrel 61. The upper end of the weighing sensor 3 62 is fixedly connected to the lower end face of the angle iron 63. The lower end of the weighing sensor 3 62 is fixedly connected to the bottom plate 51, so that the small barrel 61 is fixed to the upper end face of the bottom plate 51. The number of angle irons 63 and weighing sensors 3 62 in the present application is four. The four weighing sensors 3 62 can monitor the overall weight of the small barrel 61 in real time, which is convenient for refilling.

[0028] The end barrel assembly 6 also includes a barrel cover 64 and a cylinder 1 65. A cylinder seat 1 66 is fixed on the side wall of the small barrel 61. The cylinder 1 65 is fixed on the cylinder seat 1 66, and the output shaft of the cylinder 1 65 is arranged upward. A hinge block 67 is hinged on the side wall of the upper end of the small barrel 61. The middle position of one side of the hinge block 67 is hinged to the upper end of the small barrel 61. One end of the hinge block 67 is fixedly connected to the barrel cover 64, and the other end of the hinge block 67 is hinged to the output shaft of the cylinder. When it is necessary to open the barrel cover 64, the cylinder 65 is started, driving one end of the hinge block 67 to move downward, and the other end of the hinge block 67 drives the barrel cover 64 to flip upward, so that the barrel cover 64 is opened; when it is necessary to close the barrel cover 64, the cylinder 65 is started, driving one end of the hinge block 67 to move upward, so that the other end of the hinge block 67 drives the barrel cover 64 to flip downward, so that the barrel cover 64 covers the top of the small material barrel 61.

[0029] The discharge port of the transition barrel 32 is connected with a sleeve 34, the lower end of the sleeve 34 is fixedly connected to the transition bracket 31, a clamp valve 1 35 is provided on the sleeve 34, and a clamp valve 2 68 is provided on the discharge port of the small barrel 61. The clamp valve 1 35 and the clamp valve 2 68 in the present application are both electromagnetic clamp valves, and other valves that can realize automatic control of opening and closing can also be used to control the outflow of quartz sand in the transition barrel 32 and the small barrel 61. The quartz sand in the transition barrel 32 will flow into the sleeve 34, and the lower end of the sleeve 34 is fixed so that the position of the discharge port of the sleeve 34 is fixed. When the moving device 5 drives the small barrel 61 to move to the bottom of the sleeve 34 corresponding to one of the transition barrels 32, the clamp valve 1 35 on the sleeve 34 is controlled to open, so that the quartz sand in the transition barrel 32 can flow into the small barrel 61.

[0030] The discharge pipe 72 assembly 7 is fixed to the lower end of the terminal barrel assembly 6, and the discharge pipe 72 assembly 7 includes a telescopic pipe 71, a discharge pipe 72 and a height adjustment mechanism. The telescopic pipe 71 is a prior art, which is formed by connecting a plurality of pipes with gradually decreasing diameters, and the pipe located at the bottom can be retracted into the inside of the pipe located at the top. The discharge pipe 72 is connected to the pipe with the smallest diameter of the telescopic pipe 71, and the pipe with the largest diameter in the telescopic pipe 71 is fixedly connected to the discharge port of the small barrel 61. The quartz sand in the small barrel 61 can be fed into the discharge pipe 72 through the telescopic pipe 71 and flow out from the lower end of the discharge pipe 72.

[0031] A servo motor 81 with an output shaft facing downward is provided on one side of the lower end of the discharge pipe 72 assembly 7, and the output shaft of the servo motor 81 is connected to the center of the turntable 8. The turntable 8 is located below the discharge pipe 72, and the discharge port of the discharge pipe 72 is located above the non-center position of the turntable 8. That is, the quartz sand flowing out of the discharge pipe 72 will fall on the edge of the turntable 8.

[0032] The fixed position of the servo motor 81 is located at the connection between the discharge pipe 72 and the telescopic tube 71, so the extension and contraction of the telescopic tube 71 will not affect the relative position between the discharge pipe 72 and the turntable 8. The turntable 8 will be located in the mold 12 on the melting device 11. The mold 12 in the present application is cylindrical, and there is no top cover on the top of the mold 12. The telescopic tube 71 can drive the turntable 8 to move up and down in the mold 12. During operation, the highest height of the turntable 8 will not move out of the mold 12. When there is quartz sand on the turntable 8, the servo motor 81 drives the turntable 8 to rotate, so that the quartz sand on the turntable 8 is thrown onto the inner wall of the mold 12 under the action of centrifugal force. The telescopic tube 71 can drive the turntable 8 so that the quartz sand can be evenly sprinkled on the inner wall of the mold 12 in the height direction.

[0033] The height adjustment mechanism includes two lifting motors 73, four wire rope reels 74 and a lifting plate 75. The lifting plate 75 is fixed at the connection between the discharge tube 72 and the telescopic tube 71, and the servo motor 81 is fixed on one side of the lifting plate 75. One lifting motor 73 and two wire rope reels 74 form a group, and the two groups are respectively located on both sides of the small barrel 61. Taking one group as an example for structural description, a commutator 77 is arranged on the bottom plate 51, the input shaft of the commutator 77 is arranged upward, and the two output shafts are arranged on both sides. The commutator 77 is a prior art. A reducer 76 is connected to the output shaft of the lifting motor 73. In this application, a planetary reducer 76 is used. The output shaft of the reducer 76 is connected to the input shaft of the commutator 77. When the lifting motor 73 is started, the two output shafts of the commutator 77 will rotate in the same direction and at the same speed.

[0034] One end of the two wire rope reels 74 is connected to the two output shafts of the commutator 77 respectively. In order to facilitate the rotation of the wire rope reels 74, the other ends of the two wire rope reels 74 are connected to the bearing seat on the base plate 51. When the commutator 77 drives the two wire rope reels 74 to rotate synchronously, the wire rope 741 wound on the two wire rope reels 74 can be released or retracted synchronously. The wire rope 741 released from the wire rope reel 74 will pass through the two fixed pulleys 78 set under the base plate 51, and then vertically downward. The two fixed pulleys 78 can change the direction of the wire rope 741 and play a limiting role. The lower ends of the four wire ropes 741 are respectively fixed at the four corners of the lifting plate 75, so that the lifting plate 75 is balanced and keeps a horizontal state.

[0035] When the two lifting motors 73 are synchronously running forward, the lifting plate 75 can be lifted, so that the telescopic tube 71 can be retracted; when the lifting motors 73 are running reversely, the height of the lifting plate 75 can be lowered, so that the telescopic tube 71 can be extended. In order to make the telescopic tube 71 more smoothly extended, a counterweight block 79 is fixed at the bottom of the lifting plate 75. The counterweight block 79 can increase the overall weight of the lifting plate 75, so that the lifting plate 75 can drive the telescopic tube 71 to extend downward when not being pulled upward by the wire rope 741, and the wire rope 741 can be kept taut.

[0036] Working principle: The conventional production process is to manually pour quartz sand into the mold 12 of the melting device 11, and then manually shape it with a molding rod, and repeat it three times. After completing the outer, middle and inner layers of quartz sand feeding and molding processes, the melting device 11 automatically moves to the melting chamber 1 for the melting process, and after completion, exits the melting chamber 1 for the demolding process. The present application uses a quartz sand continuous automatic feeding and molding device to replace manual labor to complete the quartz sand feeding and quartz sand molding process on the wall of the mold 12 in the production process.

[0037] The outer sand material barrel 24, the middle sand material barrel 25 and the inner sand material barrel 26 are arranged on the top of the melting chamber 1. Each storage barrel 21 can be loaded with about 1500kg of high-purity quartz sand, which can meet the material needs of automatic production for about 2 days (based on the daily output of 20 32-inch quartz crucibles, each crucible needs to be charged with about 100kg of material, and the outer, middle and inner sand are calculated with 1 / 3 respectively). Each storage barrel 21 is monitored by four weighing sensors 23 in real time to monitor the weight of the remaining material so as to replenish the quartz sand in time.

[0038] Each storage barrel 21 conveys the quartz sand to three transition barrels 32 through a screw conveyor 9. Each transition barrel 32 can be loaded with about 700 kg of quartz sand, which can meet at least one day's production needs. Similarly, each transition barrel 32 is monitored in real time by four weighing sensors 2 33 for the weight of the remaining material so as to automatically refill the material. A normally closed clamp valve 1 35 is provided at the discharge port below each transition barrel 32 to control the discharge on and off. In this application, a single quartz crucible needs to discharge about 33 kg of a single type of quartz sand.

[0039] Taking the feeding of the outer sand material barrel 24 as an example, the mobile device 5 drives the small material barrel 61 to the lower part of the transition material barrel 32 corresponding to the outer sand material barrel 24 through the gear rack 54 transmission mechanism to receive the material. The quartz sand in the small material barrel 61 falls to the edge of the turntable 8 through the telescopic tube 71 and the discharge pipe 72, and then the turntable 8 is driven to rotate by the servo motor 81 on the lifting plate 75. The centrifugal force generated by the rotation evenly throws the outer quartz sand on the wall of the mold 12. The mold 12 always keeps a uniform rotation speed during the feeding and molding process, and the rotation speed is about 50~80rpm.

[0040] Since the entire process of dropping materials is carried out in a closed pipe, and the edge of the turntable 8 is relatively close to the wall of the mold 12 during the throwing process, which is set to about 20 mm in this application, the problem of air mixing during the feeding process can be effectively avoided. Among them, the rotation speed of the turntable 8 is about 1000~1200rpm, and the diameter of the turntable 8 is about 200~250mm. During the rotation of the turntable 8, the telescopic tube 71 is driven by the wire rope 741 to slowly rise and fall, so as to ensure the uniformity of feeding in the vertical direction.

[0041] Finally, the device is also equipped with a robot 10, which is equipped with a sand forming knife 101, which includes an outer layer sand forming knife, a middle layer sand forming knife and an inner layer sand forming knife according to different layers. After the quartz sand in the outer layer sand material barrel 24 is added, since the mold 12 is always in a rotating state, the outer layer of quartz sand will always stick to the inner wall of the mold 12 under the action of the centrifuge and will not fall off. At this time, the robot 10 places the outer layer sand forming knife to the designated position in the mold 12, and scrapes the outer layer of quartz sand attached to the inner wall of the mold 12 flat, and this process lasts for about 30 seconds; then the middle layer of quartz sand is added, and after the addition is completed, the middle layer of quartz sand adheres to the surface of the outer layer of quartz sand, and the robot 10 uses the middle layer of sand forming knife to scrape it flat, and this process lasts for about 30 seconds; finally, the inner layer of quartz sand is added, and after the addition is completed, the inner layer of quartz sand adheres to the surface of the middle layer of quartz sand, and the robot 10 uses the inner layer of sand forming knife to scrape it flat, and this process lasts for about 30 seconds. In the process, each layer of sand needs to be molded to ensure the overall molding accuracy. The robot 10 here is a mechanical arm, which is a prior art and can rotate in all directions to scrape the quartz sand in the mold 12 flat.

[0042] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for continuous and automatic feeding and molding of quartz sand, comprising a melting chamber (1), a material storage device (2), a transition device (3) and a feeding device (4), characterized in that: The material storage device (2) comprises a material storage barrel (21) and a material barrel rack (22), wherein the material storage barrel (21) is fixed on the material barrel rack (22), and a weighing sensor 1 (23) is arranged on the material barrel rack (22), and the weighing sensor 1 (23) is used to monitor the overall weight of the material storage barrel (21). The transition device (3) comprises a transition bracket (31) and a transition material barrel (32), wherein the transition material barrel (32) is fixed on the transition bracket (31), and a weighing sensor 2 (33) is arranged on the transition bracket (31), and the weighing sensor 2 (33) is used to monitor the overall weight of the transition material barrel (32). The material storage barrel (21) and the transition material barrel (32) are connected via a transmission mechanism, and the feeding device (4) comprises a feeding rack (41), a moving device (5), an end barrel assembly (6), and a discharge pipe (72) assembly. (7) and a turntable (8), the moving device (5) is fixed on the feeding rack (41), the terminal barrel assembly (6) is fixed on the moving device (5), the moving device (5) is used to drive the terminal barrel assembly (6) to move so that the terminal barrel assembly (6) moves to the outlet of the transition barrel (32), the discharge pipe (72) assembly (7) is fixed on the lower end of the terminal barrel assembly (6) and is communicated with the terminal barrel assembly (6), a servo motor (81) is provided on one side of the lower end of the discharge pipe (72) assembly (7), the output shaft of the servo motor (81) is arranged downward, and the output shaft of the servo motor (81) is connected to the center of the turntable (8), the turntable (8) is located below the discharge pipe (72) assembly (7), and the lowermost end of the discharge pipe (72) assembly (7) is located above the edge of the turntable (8).

2. The equipment for continuous and automatic feeding and molding of quartz sand according to claim 1, characterized in that: There are three material storage barrels (21), which are respectively an outer sand material barrel (24), a middle sand material barrel (25) and an inner sand material barrel (26); there are three filter material barrels, each of which corresponds to one of the material storage barrels (21); each of the material storage barrels (21) is provided with four weighing sensors one (23); and each of the filter material barrels is provided with four weighing sensors two (33).

3. The equipment for continuous and automatic feeding and molding of quartz sand according to claim 1, characterized in that: The transmission mechanism is a screw conveyor (9), and three screw conveyors (9) are provided. The screw conveyors (9) are fixed on a barrel rack (22), and the feed inlet of the screw conveyor (9) is connected to the discharge outlet of the storage barrel (21), and the discharge outlet of the screw conveyor (9) is connected to the feed inlet of the transition barrel (32).

4. The equipment for continuous and automatic feeding and molding of quartz sand according to claim 2, characterized in that: A sleeve (34) is connected to the discharge port of the transition barrel (32), the lower end of the sleeve (34) is fixedly connected to the transition bracket (31), and a clamping valve (35) is provided on the sleeve (34).

5. The equipment for continuous and automatic feeding and molding of quartz sand according to claim 2, characterized in that: The moving device (5) comprises a base plate (51), a moving motor (52), a moving gear (53), a rack (54) and two parallel guide rails (55). The two guide rails (55) are fixed on the feeding rack (41) and are located below the three transition material barrels (32). The length direction of the guide rails (55) is the arrangement direction of the three transition material barrels (32). The rack (54) is fixed on one side of one of the guide rails (55) and is arranged parallel to the guide rail (55). The two sides of the lower end of the base plate (51) are respectively clamped on the two guide rails (55) and are slidably connected to the guide rails (55). The moving motor (52) is fixed on one side of the base plate (51). The output shaft of the moving motor (52) is fixedly connected to the moving gear (53). One side of the moving gear (53) is meshed with the rack (54).

6. The equipment for continuous automatic feeding and molding of quartz sand according to claim 5, characterized in that: The terminal barrel assembly (6) comprises a small barrel (61) and a plurality of weighing sensors (62). A clamping valve (68) is provided on the discharge port of the small barrel (61). A plurality of angle irons (63) are fixed on the side wall of the small barrel (61). The plurality of weighing sensors (62) are respectively fixed on the lower end surfaces of the plurality of angle irons (63). The lower ends of the weighing sensors (62) are fixedly connected to the bottom plate (51).

7. The equipment for continuous automatic feeding and molding of quartz sand according to claim 6, characterized in that: The terminal barrel assembly (6) further comprises a barrel cover (64) and a cylinder one (65). A cylinder seat one (66) is fixedly provided on the side wall of the small barrel (61). The cylinder one (65) is fixed on the cylinder seat one (66). The output shaft of the cylinder one (65) is arranged upward. A hinge block (67) is hingedly connected to the side wall at the upper end of the small barrel (61). One end of the hinge block (67) is fixedly connected to the barrel cover (64), and the other end of the hinge block (67) is hingedly connected to the output shaft of the cylinder. The cylinder one (65) is used to open or close the barrel cover (64).

8. The equipment for continuous and automatic feeding and molding of quartz sand according to claim 7, characterized in that: The discharge pipe (72) assembly (7) comprises a telescopic tube (71), a discharge pipe (72) and a height adjustment mechanism. The discharge pipe (72) is connected to the discharge port of the small material barrel (61). The discharge pipe (72) is fixed to the lowermost end of the telescopic tube (71). The discharge pipe (72) is used to discharge the sand material in the small material barrel (61) onto the turntable (8).

9. The equipment for continuous and automatic feeding and molding of quartz sand according to claim 8, characterized in that: The height adjustment mechanism comprises two lifting motors (73), four wire rope reels (74) and a lifting plate (75). The lowermost end of the telescopic tube (71) is fixedly connected to the lifting plate (75), and the uppermost end of the discharge tube (72) is fixedly connected to the lifting plate (75). The two lifting motors (73) are respectively located on both sides of the small material barrel (61). The output shafts of the lifting motors (73) are connected to reducers (76). The output shafts of the reducers (76) are connected to commutators (77). The commutators (77) are fixed to the upper end surface of the bottom plate (51). The two output shafts of the commutators (77) are both connected to a wire rope reel (74). The wire rope reels (7 The other end of the steel wire rope (74) is connected to a bearing seat arranged on the upper end surface of the bottom plate (51), and the commutator (77) is used to drive the two steel wire rope reels (74) to rotate synchronously. One end of the steel wire rope (741) on the steel wire rope reel (74) is adjusted in direction by a fixed pulley (78) arranged on the lower end surface of the bottom plate (51) and then hangs vertically downward. The lowermost end of the steel wire rope (741) is fixedly connected to the position of one corner of the lifting plate (75). The steel wire ropes (741) on the four steel wire rope reels (74) are respectively fixed at the four corners of the lifting plate (75) to keep the lifting plate (75) horizontally arranged. The two lifting motors (73) operate synchronously to adjust the height of the lifting plate (75).

10. The equipment for continuous and automatic feeding and molding of quartz sand according to claim 9, characterized in that: A counterweight block (79) is fixedly disposed on the lower end surface of the lifting plate (75), and the counterweight block (79) is used to drive the lifting plate (75) to move downward and keep the steel wire rope (741) in a taut state.

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