Full-automatic weighing and sand separating equipment

Abstract

The invention discloses full-automatic weighing and sand separating equipment, which belongs to the technical field of quartz crucible production and comprises a sand separating and weighing roller line, the upstream of the sand separating and weighing roller line is respectively connected with a large barrel feeding roller line and a feeding box feeding roller line, and the downstream of the sand separating and weighing roller line is respectively connected with a large barrel discharging roller line and a discharging temporary storage roller line. A material barrel is supported on the large barrel feeding roller line, a material box is supported on the feeding box feeding roller line, the material barrel enters the sand separating and weighing roller line through the large barrel feeding roller line, and the material box enters the sand separating and weighing roller line through the feeding roller line. The sand separating and weighing roller line is used for controlling the material barrel to enter the large barrel discharging roller line after quartz sand in the material barrel is accurately separated into a plurality of material boxes; and the sand separating and weighing roller line controls the material box to enter the discharging buffer storage roller line after accurate quartz sand is separated into the material box.

Description

Technical Field

[0001] The invention belongs to the technical field of quartz crucible production, and in particular relates to a fully automatic weighing and sand-separating device. Background Art

[0002] At present, quartz crucibles are more and more widely used due to their high purity, strong temperature resistance, large size, high precision, good heat preservation, energy saving, stable quality and other advantages. The original melting furnace is divided by hand, which greatly increases the labor cost and makes it difficult to ensure production efficiency.

[0003] Therefore, it is urgent to design a fully automatic weighing and sand sorting equipment to solve the problems of high labor cost and low production efficiency mentioned above. Summary of the invention

[0004] In order to solve the technical problems of high labor cost and low production efficiency mentioned in the background technology, a fully automatic weighing and sand sorting equipment is provided to solve the above problems.

[0005] To achieve the above purpose, the specific technical scheme of the fully automatic weighing and sand separation equipment of the present invention is as follows: A fully automatic weighing and sand-sorting device comprises a sand-sorting and weighing drum line, wherein a large barrel feeding drum line and a feeding box feeding drum line are respectively connected to the upstream of the sand-sorting and weighing drum line, and a large barrel discharging drum line and a discharging buffer drum line are respectively connected to the downstream of the sand-sorting and weighing drum line, wherein a barrel is supported on the large barrel feeding drum line, and a material box is supported on the feeding box feeding drum line, wherein the barrel enters the sand-sorting and weighing drum line through the large barrel feeding drum line, and the material box enters the sand-sorting and weighing drum line through the feeding drum line; The sand-grading and weighing drum line divides the quartz sand in the barrel into multiple material boxes accurately, and then controls the barrel to enter the large barrel discharge drum line; the sand-grading and weighing drum line divides the material box into precise quartz sand, and then controls the material box to enter the discharge buffer drum line.

[0006] Furthermore, the sand sorting and weighing drum line includes an equipment frame, on which a sand sorting mechanism and a weighing mechanism are installed. The upstream of the sand sorting mechanism is connected to the large barrel feeding drum line, and the downstream of the sand sorting mechanism is connected to the large barrel discharging drum line. The upstream of the weighing mechanism is connected to the feeding box feeding roller line, and the downstream of the weighing mechanism is connected to the discharging buffer roller line.

[0007] Furthermore, the sand separation mechanism includes a flip frame, which is installed on the equipment frame. A first roller conveyor is provided at the bottom of the flip frame. The upstream of the first roller conveyor is connected to the barrel feed roller line, and the downstream of the first roller is connected to the barrel discharge roller line. A first air vibration funnel is slidably connected to the top of the flip frame. The shape of the first air vibration funnel matches the shape of the barrel so that the shape of the first air vibration funnel can be detachably connected to the barrel. A rotating base plate is fixedly connected to the top of the flip frame, and a flip shaft is provided on the rotating base plate. The flip shaft is connected to the first motor, and the first motor drives the flip frame to rotate around the flip shaft.

[0008] Furthermore, the rotating substrate protrudes in a direction away from the flip frame to form an overhanging substrate on the rotating substrate, and the flip axis is arranged on the overhanging substrate, so that the first motor drives the flip frame to rotate eccentrically around the flip axis.

[0009] Furthermore, the flip frame and the first air vibration funnel are slidably connected via a first driving cylinder, and the driving cylinder drives the first air vibration funnel to move toward the barrel and tightly fixes the first air vibration funnel to the barrel.

[0010] Further, the weighing mechanism includes a weighing roller conveyor belt, the upstream of which is connected to the feed box feed roller line, and the sand separation mechanism also includes a feeding device, which is connected to the equipment frame and is located downstream of the weighing roller conveyor belt; A material distribution position for supporting the material box is provided on the weighing roller conveyor belt, and a weighing sensor is provided at the bottom of the material distribution position to weigh the material box supported on the material distribution position; After the turning frame rotates around the turning axis, the first air vibration funnel is located above the material distribution position, and the quartz sand in the material barrel enters the material box on the material distribution position through the first air vibration funnel.

[0011] Furthermore, an air filling pipe opening is provided on the first air vibration funnel, so as to fill air into the cavity formed by the first air vibration funnel and the material barrel being tightly fixed thereto through the air filling pipe opening.

[0012] Furthermore, the feeding device includes a feeding roller conveyor belt and a movable slide rail. The movable slide rail is fixedly connected to the equipment frame. A second pneumatic vibration funnel is connected to the movable slide rail. The upstream of the feeding roller conveyor belt is connected to the weighing roller conveyor belt. The downstream of the feeding roller conveyor belt is connected to the discharge buffer roller line. The feeding roller conveyor belt is sequentially provided with a waiting position, a precise feeding position and a discharge position. The movable slide rail controls the second pneumatic vibration funnel to move between the precise feeding position and the material distribution position.

[0013] Furthermore, the movable slide rail includes a horizontal slide rail and a vertical slide rail. One end of the vertical slide rail is fixedly connected to the equipment frame, and the end of the vertical slide rail away from the equipment frame is slidably connected to the horizontal slide rail, so that the horizontal slide rail slides on the vertical slide rail. The end of the horizontal slide rail away from the vertical slide rail is connected to the second air vibration funnel, so that the second air vibration funnel slides on the horizontal slide rail. The second air vibration funnel is moved to the bottom of the first air vibration funnel through the cooperation of the horizontal slide rail and the vertical slide rail to refill the second air vibration funnel.

[0014] Furthermore, a telescopic cylinder is connected to the bottom of the weighing roller conveyor belt. When the second pneumatic vibration funnel moves to the bottom of the first pneumatic vibration funnel through the cooperation of the horizontal slide rail and the vertical slide rail to refill the second pneumatic vibration funnel, the telescopic cylinder drives the weighing roller conveyor belt to descend to make way for the second pneumatic vibration funnel.

[0015] The fully automatic weighing and sand-sorting equipment of the present invention has the following advantages: the present invention realizes automatic weighing and sand-sorting of quartz sand, replaces manual weighing and sand-sorting, has fast material-sorting speed and high precision, reduces the loss caused by human operation factors, improves production efficiency, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the fully automatic weighing and sand-classifying equipment of the present invention; Figure 2 It is a schematic diagram of the orientation layout of the sand separation mechanism and the weighing mechanism of the present invention; Figure 3 It is a partial schematic diagram of the sand separation structure of the present invention; Figure 4 It is a schematic diagram of the orientation layout of the weighing mechanism and the feeding device of the present invention; Figure 5 It is a schematic diagram of the first air vibration funnel structure of the present invention.

[0017] Explanation of the marks in the figure: 1. Sand separation and weighing roller line; 11. Sand separation mechanism; 111. Turning frame; 112. First roller conveyor belt; 113. First air vibration funnel; 1131. Inflatable pipe port; 1132. Solenoid clamp valve; 114. Rotating substrate; 115. First motor; 1141. Extended substrate; 116. First driving cylinder; 118. Feeding device; 1181. Moving slide rail; 1182. Feeding roller conveyor belt; 1183. Second air vibration funnel ; 11811, horizontal slide rail; 11812, vertical slide rail; 12, weighing mechanism; 121, weighing roller conveyor belt; 122, weighing sensor; 123, telescopic cylinder; 13, equipment frame; 2, large barrel feeding roller line; 3, feeding box feeding roller line; 4, large barrel discharging roller line; 5, discharging buffer roller line; 6, barrel; 7, material box; 8, controller; 100, material distribution position; 200, waiting position; 300, precise material replenishment position; 400, discharging position. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0019] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0020] Please refer to the attached Figure 1 To Attachment Figure 5 The invention discloses a fully automatic sand-classifying device by weighing.

[0021] The existing melting furnace divides the quartz sand manually, which greatly increases the labor cost and makes it difficult to ensure production efficiency.

[0022] Therefore, the present invention provides a fully automatic weighing and sand separation equipment, such as Figure 1 As shown, it includes a sand-sorting and weighing drum line 1, the upstream of which is respectively connected to a large barrel feeding drum line 2 and a feeding box feeding drum line 3, the downstream of which is respectively connected to a large barrel discharging drum line 4 and a discharging buffer drum line 5, the large barrel feeding drum line 2 supports a material barrel 6, the feeding box feeding drum line 3 supports a material box 7, the material barrel 6 enters the sand-sorting and weighing drum line 1 through the large barrel feeding drum line 2, and the material box 7 enters the sand-sorting and weighing drum line 1 through the feeding drum line; the sand-sorting and weighing drum line 1 controls the material barrel 6 to enter the large barrel discharging drum line 4 after the quartz sand in the material barrel 6 is accurately divided into a plurality of material boxes 7; the sand-sorting and weighing drum line 1 controls the material box 7 to enter the discharging buffer drum line 5 after the material box 7 is divided into accurate quartz sand. Specifically, the material barrel 6 filled with quartz sand enters the sand dividing and weighing drum line 1 from the large barrel feeding roller line 2. At the same time, the empty material box 7 enters the sand dividing and weighing drum line 1 from the feeding box feeding roller line 3. The sand dividing and weighing drum line 1 accurately divides the quartz sand in the material barrel 6 into multiple material boxes 7. The material boxes 7 after accurate material division enter the discharge buffer roller line 5 for storage. When the quartz sand in the material barrel 6 in the sand dividing and weighing drum line 1 is exhausted, the material barrel 6 enters the large barrel discharging roller line 4 from the sand dividing and weighing drum line 1.

[0023] Preferably, a first reflection sensor for detecting the barrel 6 is provided at the end of the barrel discharge roller line 4, and the first reflection sensor is connected to the controller 8. The controller 8 receives the signal and calculates the output to remind the staff to collect the empty barrel 6 in time.

[0024] As a preferred embodiment, the sand-splitting and weighing drum line 1 includes an equipment frame 13, on which a sand-splitting mechanism 11 and a weighing mechanism 12 are installed. The upstream of the sand-splitting mechanism 11 is connected to the barrel feeding drum line 2, and the downstream of the sand-splitting mechanism 11 is connected to the barrel discharging drum line 4. The upstream of the weighing mechanism 12 is connected to the feeding box feeding drum line 3, and the downstream of the weighing mechanism 12 is connected to the discharging buffer drum line 5. In a specific embodiment, the material barrel 6 enters the sand-splitting mechanism 11 to separate the quartz sand from the material box 7 entering the weighing mechanism 12, and the material box 7 with the quartz sand separated enters the discharging buffer drum line 5 for storage.

[0025] As a preferred example, Figure 1-Figure 3 As shown, the sand separation mechanism 11 includes a flip frame 111, which is installed on the equipment frame 13. A first roller conveyor belt 112 is provided at the bottom of the flip frame 111. The first roller conveyor belt 112 is connected to the barrel feeding roller line 2 upstream, and the first roller is connected to the barrel discharging roller line 4 downstream. A first air vibration funnel 113 is slidably connected to the top of the flip frame 111. The shape of the first air vibration funnel 113 matches the shape of the barrel 6 so that the shape of the first air vibration funnel 113 can be detachably connected to the barrel 6. A rotating base plate 114 is fixedly connected to the top of the flip frame 111, and a flip shaft (not shown in the figure) is provided on the rotating base plate 114. The flip shaft is connected to the first motor 115, and the first motor 115 drives the flip frame 111 to rotate around the flip shaft. Specifically, after the opening direction of the first air vibration funnel 113 faces upward and is connected to the barrel 6, the first air vibration funnel 113 and the barrel 6 together form a cavity structure with an opening at the top, and the first motor 115 drives the flip frame 111 to rotate around the flip axis. At this time, the first air vibration funnel 113 and the barrel 6 located on the flip frame 111 rotate with the flip frame 111, and make the opening direction of the first air vibration funnel 113 face downward, and the quartz sand in the barrel 6 flows downward under the action of the first air vibration funnel 113 and gravity.

[0026] Preferably, the first pneumatic vibration funnel 113 includes a dividing funnel, on which a first pneumatic vibrator is installed. The first pneumatic vibrator is located around the dividing funnel, and the number of the first pneumatic vibrators is not less than two, so as to evenly vibrate the dividing funnel to make the quartz sand fall evenly.

[0027] As a preferred example, Figure 3As shown, the rotating substrate 114 extends outward in a direction away from the flip frame 111 to form an extended substrate 1141 on the rotating substrate 114, and the flip axis is set on the extended substrate 1141, so that the first motor 115 drives the flip frame 111 to rotate eccentrically around the flip axis. Specifically, the eccentric rotation reduces the movement of the quartz sand in the cavity formed by the first gas vibration funnel 113 and the barrel 6, thereby reducing the contact between the quartz sand and impurities or dust in the air, thereby improving the quality of the quartz crucible manufactured by the quartz sand.

[0028] As a preferred example, Figure 3 As shown, the flip frame 111 and the first air vibration funnel 113 are slidably connected via the first driving cylinder 116, and the driving cylinder drives the first air vibration funnel 113 to move toward the barrel 6 and abuts and fixes the first air vibration funnel 113 against the barrel 6. Specifically, the first driving cylinder 116 moves downward, driving the first air vibration funnel 113 to abut and fix against the opening of the barrel 6, and then the first driving cylinder 116 transmits force to the first roller conveyor belt 112 through the first air vibration funnel 113 and the barrel 6, so that the first air vibration funnel 113 and the first roller conveyor belt 112 clamp the first air vibration funnel 113 and the barrel 6 in the middle.

[0029] Preferably, the first roller conveyor belt 112 is provided with a blocking cylinder for limiting the horizontal movement of the barrel 6 and a second reflection sensor for detecting the barrel 6. The second reflection sensor and the blocking cylinder are both connected to the controller 8. The controller 8 receives the signal from the second reflection sensor and controls the blocking cylinder to block or release. At the same time, the blocking cylinder also limits the barrel 6 to ensure the fixing effect when the first air vibration funnel 113 and the barrel 6 are flipped.

[0030] As a preferred example, Figure 4As shown, the weighing mechanism 12 includes a weighing roller conveyor belt 121, which is connected to the feed roller line 3 of the feed box upstream, and the sand dividing mechanism 11 also includes a feeding device 118, which is connected to the equipment frame 13, and the feeding device 118 is located downstream of the weighing roller conveyor belt 121; a dividing position 100 for supporting the material box 7 is provided on the weighing roller conveyor belt 121, and a weighing sensor 122 is provided at the bottom of the dividing position 100 to weigh the material box 7 supported on the dividing position 100; after the turning frame 111 rotates around the turning axis, the first air vibration funnel 113 is located above the dividing position 100, and the quartz sand in the material barrel 6 enters the material box 7 on the dividing position 100 through the first air vibration funnel 113. Specifically, in order to further ensure the accuracy of material distribution, the sand dividing structure performs coarse material distribution at the material distribution position 100 through the first air vibration funnel 113, the weighing sensor 122 is connected to the controller 8, the controller 8 is connected to the feeding device 118, the weighing sensor 122 transmits the weight parameters of the material box 7 to the controller 8, and the controller 8 controls the feeding device 118 to accurately feed the material box 7 according to the weight parameters of the material box 7, thereby ensuring the accuracy of material distribution.

[0031] As a preferred example, Figure 5 As shown, the first air vibration funnel 113 is provided with an air charging nozzle 1131, so as to charge air into the cavity formed by the first air vibration funnel 113 and the material barrel 6 by the air charging nozzle 1131. Specifically, the air charging nozzle 1131 charges air into the cavity formed by the first air vibration funnel 113 and the material barrel 6 by the air charging nozzle 1131, so as to reduce the pressure difference between the cavity and the atmosphere, so that the quartz sand in the cavity can flow out smoothly, and the flow rate of the quartz sand can be controlled by controlling the flow rate of the air charging.

[0032] Preferably, an electromagnetic tube clamp valve 1132 is provided on the first air vibration funnel 113, and the electromagnetic tube clamp valve 1132 is connected to the controller 8. At the same time, the inflation pipe port 1131 is externally connected to an air pressure device, and the air pressure device is also connected to the controller 8. The controller 8 simultaneously controls the flow of the air pressure device and the opening and closing size of the electromagnetic tube clamp valve 1132, so that the air pressure device and the electromagnetic tube clamp valve 1132 cooperate to control the flow of the falling quartz sand, thereby improving the falling accuracy.

[0033] As a preferred example, Figure 4As shown, the feeding device 118 includes a feeding roller conveyor 1182 and a movable slide rail 1181. The movable slide rail 1181 is fixedly connected to the equipment frame 13. A second air vibration funnel 1183 is connected to the movable slide rail 1181. The upstream of the feeding roller conveyor 1182 is connected to the weighing roller conveyor 121, and the downstream of the feeding roller conveyor 1182 is connected to the discharge buffer roller line 5. The feeding roller conveyor 1182 is sequentially provided with a waiting position 200, a precise feeding position 300 and a discharge position 400. The movable slide rail 1181 controls the second air vibration funnel 1183 to move between the precise feeding position 300 and the material distribution position 100. Specifically, when there is quartz sand satisfying the feeding quantity in the second air vibration funnel 1183, the second air vibration funnel 1183 is located directly above the precise feeding position 300, a third reflection sensor is provided on the material distribution position 100, a fourth reflection sensor is provided on the waiting position 200, a fifth reflection sensor is provided on the precise feeding position 300, and a sixth reflection sensor is provided on the discharge position 400, for detecting whether there are material boxes 7 on the material distribution position 100, the waiting position 200, the precise feeding position 300 and the discharge position 400, wherein the third reflection sensor, the fourth reflection sensor, the fifth reflection sensor and the sixth reflection sensor are all connected to the controller 8, and the controller 8 controls After the material box 7 is weighed at the dispensing position 100, it enters the waiting position 200 to wait. When the downstream material box 7 has finished refilling, it enters the precise refilling position 300 from the waiting position 200, and enters the discharge position 400 after precise refilling through the second air vibration funnel 1183. At the same time, the controller 8 is connected to the movable slide rail 1181. The second air vibration funnel 1183 is provided with a refilling weight sensor for detecting the weight of the quartz sand in the second air vibration funnel 1183. When the quartz sand in the second air vibration funnel 1183 needs to be replenished, the controller 8 controls the movement of the movable slide rail 1181, so that the second air vibration funnel 1183 moves to the position of the dispensing position 100 for refilling.

[0034] Preferably, the second pneumatic vibration funnel 1183 includes a feeding funnel, on which a second pneumatic vibrator is installed. The second pneumatic vibrator is located on the side of the feeding funnel. The number of the second pneumatic vibrators is not less than two, so as to vibrate the feeding funnel evenly to make the quartz sand fall evenly. At the same time, the other structures of the second pneumatic vibration funnel 1183 are the same as those of the first pneumatic vibration funnel 113, and an inflation pipe port 1131 and an electromagnetic tube clamp valve 1132 are also provided.

[0035] As a preferred example, Figure 4As shown, the movable slide rail 1181 includes a horizontal slide rail 11811 and a vertical slide rail 11812, one end of the vertical slide rail 11812 is fixedly connected to the equipment rack 13, and the end of the vertical slide rail 11812 away from the equipment rack 13 is slidably connected to the horizontal slide rail 11811, so that the horizontal slide rail 11811 slides on the vertical slide rail 11812, and the end of the horizontal slide rail 11811 away from the vertical slide rail 11812 is connected to the second air vibration funnel 1183, so that the second air vibration funnel 1183 slides on the horizontal slide rail 11811, and the second air vibration funnel 1183 moves to the bottom of the first air vibration funnel 113 through the cooperation of the horizontal slide rail 11811 and the vertical slide rail 11812 to refill the second air vibration funnel 1183. Optionally, the horizontal slide rail 11811 uses a dust-free belt to reduce impurities and dust in the air from mixing into the quartz sand.

[0036] As a preferred example, Figure 2 and Figure 4 As shown, a telescopic cylinder 123 is also connected to the bottom of the weighing roller conveyor 121. When the second air vibration funnel 1183 moves to the bottom of the first air vibration funnel 113 through the horizontal slide rail 11811 and the vertical slide rail 11812 to refill the second air vibration funnel 1183, the telescopic cylinder 123 drives the weighing roller conveyor 121 to descend to make way for the second air vibration funnel 1183. Specifically, the telescopic cylinder 123 is connected to the controller 8, and the controller 8 controls the movable slide rail 1181 to move the second air vibration funnel 1183 to the position of the material distribution position 100 for replenishing materials. Since the second air vibration funnel 1183 is relatively large in size and there may be a material box 7 on the material distribution position 100, the controller 8 controls the telescopic cylinder 123 to extend and retract, providing a storage space for the second air vibration funnel 1183, so that the second air vibration funnel 1183 can be located below the first air vibration funnel 113, thereby reducing the space occupancy of the entire device and making the device miniaturized and intelligent.

[0037] As a preferred example, Figure 2 As shown, in order to reduce the mixing of dust and impurities into quartz sand during the material distribution process, dust covers are respectively arranged above the barrel feeding roller line 2, the material distribution position 100, the waiting position 200 and the discharge position 400, and the dust protection of the precise filling position 300 is achieved by setting a dust cover above the second air vibration funnel 1183, wherein a dust cover with a through hole is arranged above the material distribution position 100, and a dust cover is also arranged on the first air vibration funnel 113, and the dust cover of the first air vibration funnel 113 matches the dust cover with a through hole on the material distribution position 100. When the first air vibration funnel 113 is flipped and located above the material distribution position 100, the dust cover of the first air vibration funnel 113 is embedded in the through hole of the dust cover with a through hole of the material distribution position 100, so as to achieve dust protection above the material distribution position 100.

[0038] The invention realizes automatic weighing and sorting of quartz sand, replaces manual weighing and sorting of sand, has fast sorting speed and high precision, reduces the loss caused by human operation factors, improves production efficiency and reduces production cost.

[0039] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A fully automatic weighing and sand sorting equipment, characterized in that: It includes a sand-splitting weighing drum line, wherein the upstream of the sand-splitting weighing drum line is respectively connected to a large barrel feeding drum line and a feeding box feeding drum line, and the downstream of the sand-splitting weighing drum line is respectively connected to a large barrel discharging drum line and a discharging buffer drum line, wherein the large barrel feeding drum line supports a material barrel, and the feeding box feeding drum line supports a material box, wherein the material barrel enters the sand-splitting weighing drum line through the large barrel feeding drum line, and the material box enters the sand-splitting weighing drum line through the feeding drum line; The sand-grading and weighing drum line divides the quartz sand in the barrel into multiple material boxes accurately, and then controls the barrel to enter the large barrel discharge drum line; the sand-grading and weighing drum line divides the material box into precise quartz sand, and then controls the material box to enter the discharge buffer drum line.

2. The fully automatic weighing and sand-classifying equipment according to claim 1 is characterized in that: The sand sorting and weighing drum line includes an equipment frame, on which a sand sorting mechanism and a weighing mechanism are installed. The upstream of the sand sorting mechanism is connected to the large barrel feeding drum line, and the downstream of the sand sorting mechanism is connected to the large barrel discharging drum line. The upstream of the weighing mechanism is connected to the feeding box feeding drum line, and the downstream of the weighing mechanism is connected to the discharging buffer drum line.

3. The fully automatic weighing and sand-classifying equipment according to claim 2 is characterized in that: The sand separation mechanism includes a flip frame, which is installed on the equipment frame. A first roller conveyor is provided at the bottom of the flip frame. The upstream of the first roller conveyor is connected to the barrel feeding roller line, and the downstream of the first roller is connected to the barrel discharging roller line. A first air vibration funnel is slidably connected to the top of the flip frame. The shape of the first air vibration funnel matches the shape of the barrel so that the shape of the first air vibration funnel can be detachably connected to the barrel. A rotating base plate is fixedly connected to the top of the flip frame, and a flip shaft is provided on the rotating base plate. The flip shaft is connected to the first motor, and the first motor drives the flip frame to rotate around the flip shaft.

4. The fully automatic weighing and sand-classifying equipment according to claim 3 is characterized in that: The rotating substrate protrudes outward in a direction away from the flip frame to form an outwardly extending substrate on the rotating substrate. The flip shaft is arranged on the outwardly extending substrate, so that the first motor drives the flip frame to rotate eccentrically around the flip shaft.

5. The fully automatic weighing and sand-classifying equipment according to claim 3 is characterized in that: The flip frame and the first air vibration funnel are slidably connected via a first driving cylinder, and the driving cylinder drives the first air vibration funnel to move toward the material barrel and tightly fixes the first air vibration funnel to the material barrel.

6. The fully automatic weighing and sand-classifying equipment according to claim 3 is characterized in that: The weighing mechanism includes a weighing roller conveyor belt, the upstream of which is connected to the feed box feed roller line, and the sand separation mechanism also includes a feeding device, which is connected to the equipment frame and is located downstream of the weighing roller conveyor belt; A material distribution position for supporting the material box is provided on the weighing roller conveyor belt, and a weighing sensor is provided at the bottom of the material distribution position to weigh the material box supported on the material distribution position; After the turning frame rotates around the turning axis, the first air vibration funnel is located above the material distribution position, and the quartz sand in the material barrel enters the material box on the material distribution position through the first air vibration funnel.

7. The fully automatic weighing and sand-classifying equipment according to claim 3 or 6, characterized in that: The first air vibration funnel is provided with an air filling pipe opening, so as to fill air into a cavity formed by the first air vibration funnel and the material barrel being tightly fixed thereto through the air filling pipe opening.

8. The fully automatic weighing and sand-classifying equipment according to claim 6, characterized in that: The feeding device includes a feeding roller conveyor and a movable slide rail. The movable slide rail is fixedly connected to the equipment frame. A second air vibration funnel is connected to the movable slide rail. The upstream of the feeding roller conveyor is connected to the weighing roller conveyor, and the downstream of the feeding roller conveyor is connected to the discharge buffer roller line. The feeding roller conveyor is sequentially provided with a waiting position, a precise feeding position and a discharge position. The movable slide rail controls the second air vibration funnel to move between the precise feeding position and the material distribution position.

9. The fully automatic weighing and sand-classifying equipment according to claim 8, characterized in that: The movable slide rail includes a horizontal slide rail and a vertical slide rail. One end of the vertical slide rail is fixedly connected to the equipment frame, and the end of the vertical slide rail away from the equipment frame is slidably connected to the horizontal slide rail, so that the horizontal slide rail slides on the vertical slide rail. The end of the horizontal slide rail away from the vertical slide rail is connected to the second air vibration funnel, so that the second air vibration funnel slides on the horizontal slide rail. The second air vibration funnel is moved to the bottom of the first air vibration funnel through the cooperation of the horizontal slide rail and the vertical slide rail to refill the second air vibration funnel.

10. The fully automatic weighing and sand-classifying equipment according to claim 9, characterized in that: A telescopic cylinder is also connected to the bottom of the weighing roller conveyor belt. When the second pneumatic vibration funnel moves to the bottom of the first pneumatic vibration funnel through the cooperation of the horizontal slide rail and the vertical slide rail to refill the second pneumatic vibration funnel, the telescopic cylinder drives the weighing roller conveyor belt to descend to make way for the second pneumatic vibration funnel.

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