Automatic quartz sand screening device and method thereof

Abstract

The application relates to the technical field of quartz sand screening, in particular to a quartz sand automatic screening device and method thereof, which comprises a fixing frame, a vibrating frame, two vibrating screens, an outlet and a discharge hopper. The vibrating frame is arranged on the fixing frame through a plurality of elastic members. The two vibrating screens are stacked on the vibrating frame in sequence. Each vibrating screen comprises an outer frame body, a screen mesh, an outlet and a discharge hopper. The screen mesh is fixed on the inner ring of the outer frame body. The outlet is arranged on the outer frame body. The discharge hopper is fixed on the outer circumferential surface of the outer frame body and is arranged opposite to the outlet. A through hole is arranged at the middle position of the screen mesh at the upper end. Compared with the prior art, the eccentric wheel is designed to make the vibrating screen vibrate in the vertical direction, which helps the quartz sand to be uniformly distributed on the screen mesh and avoids the sliding of the quartz sand to the edge of the screen mesh, which helps to separate the particles of different sizes and improves the screening precision and efficiency.

Description

Technical Field

[0001] This invention relates to the field of quartz sand screening technology, and in particular to an automated quartz sand screening device and method. Background Technology

[0002] Automated quartz sand screening equipment is a type of mechanical equipment used for screening and classifying quartz sand. Quartz sand is a common mineral that is often used in building materials, glass manufacturing, electronic products and other fields. In order to meet the requirements of different particle sizes, quartz sand needs to be screened in order to obtain the required particle size.

[0003] A search revealed that Chinese patent CN215587104U discloses a manufactured sand screening device. The screen has a circular bottom; 5 / 6 of its sides are perpendicular to the bottom, and 1 / 6 of its sides extend upwards and outwards, forming a slope leading to the inner bottom of the screen. The top of the slope and the top of the screen form a discharge port. A sealing cap extends outwards from the bottom of the screen corresponding to the discharge port. Connecting devices are provided on the symmetrical slope sides and perpendicular to the slope surface. The connecting devices are fixed components attached to the bottom of the screen's sidewall, with a rotating connecting ring at the center. A hook is positioned upwards at the top of the screen's sidewall corresponding to the fixed component. This design is based on the normal distribution curve of manufactured sand gradation, ensuring full utilization of each screen during the screening of manufactured sand, thus increasing work efficiency. However, in practical use, the above design still has the following shortcomings:

[0004] In actual use, the screening device involves pouring quartz sand onto the top circular screen, which then vibrates to screen the sand. During screening, the screen typically vibrates horizontally, causing the quartz sand to tend to move towards the edge of the screen. This allows the sand to be discharged through the discharge port at the edge of the screen. However, if too much quartz sand accumulates on the screen, the top layer will slide to the edge of the screen before being screened and discharged through the discharge port. This limits the screening effect of the screen. To solve this problem, workers add small amounts of quartz sand to the screening device multiple times. While this prevents the top layer of sand from being left unscreened, it limits the device's efficiency and increases the workload for the workers.

[0005] Therefore, this application provides an automated quartz sand screening device and method to meet the adaptive pipe lifting and lowering requirements during pipe rod stacking. Summary of the Invention

[0006] In view of this, the purpose of this invention is to provide an automated quartz sand screening device and method to solve the problem of low screening accuracy of quartz sand.

[0007] To achieve the above objectives, the present invention provides an automated quartz sand screening device, comprising:

[0008] Fixture;

[0009] A vibration frame, wherein the vibration frame is mounted on a fixed frame by a number of elastic elements;

[0010] Two vibrating screens are stacked on a vibrating frame. Each vibrating screen includes an outer frame, a screen, a discharge port, and a discharge hopper. The screen is fixed on the inner ring of the outer frame, the discharge port is opened on the outer frame, and the discharge hopper is fixed on the outer circumferential surface of the outer frame. The discharge hopper and the discharge port are directly opposite each other. A through hole is opened in the middle of the upper screen.

[0011] A top cover, which is placed on the uppermost vibrating screen;

[0012] Mounting bracket, which is fixed to the top cover and has a U-shaped structure;

[0013] A vibration source structure is mounted on a vibration frame, and the vibration source structure includes a vibration component, an adjustment component, and a positioning component.

[0014] A scraper assembly, which is mounted on a mounting bracket.

[0015] Preferably, the vibration assembly includes:

[0016] A rotating shaft is rotatably mounted on the vibration frame.

[0017] A fixing collar is fixedly sleeved on one end of the rotating shaft away from the vibration frame;

[0018] Second rotating shaft, one end of which is rotatably mounted on a fixed collar;

[0019] A bevel gear one is fixedly sleeved on the end of the rotating shaft two away from the fixed collar;

[0020] Motor 1, which is mounted on the vibration frame;

[0021] The second bevel gear is connected to the output shaft of the first motor, and the second bevel gear meshes with the first bevel gear.

[0022] The connecting rod is fixed to the end of the rotating shaft away from the fixed collar;

[0023] An eccentric wheel is fixed at the end of the connecting rod away from the second rotating shaft, and the eccentric wheel is eccentrically positioned relative to the connecting rod.

[0024] Preferably, the adjustment component includes:

[0025] Motor 2, which is mounted on the vibration frame;

[0026] Gear 1, which is fixedly sleeved on the output shaft of motor 2;

[0027] Gear 2 is fixedly sleeved on shaft 1, and gear 2 meshes with gear 1.

[0028] Preferably, the positioning component includes:

[0029] A rotating collar, which is rotatably sleeved on the connecting rod;

[0030] An arc-shaped plate, which is fixed to a rotating collar;

[0031] Two positioning ports are respectively opened at both ends of the arc-shaped plate;

[0032] A cylinder, which is mounted on a vibration frame;

[0033] A positioning rod, which is fixed to the telescopic end of the cylinder;

[0034] The positioning groove is formed on the vibration frame.

[0035] Preferably, the scraper assembly includes:

[0036] Motor 3, which is mounted on a mounting bracket;

[0037] A rotating rod, one end of which is fixedly connected to the output shaft of motor three, and the other end of which passes through the opening in the upper screen;

[0038] Two scrapers are fixedly mounted on a rotating rod, and the two scrapers are respectively positioned above the two screens.

[0039] Preferably, a drive assembly is provided on the mounting frame, and a dust collection assembly is shared on the mounting frame and several vibrating screens. The drive assembly includes:

[0040] Mounting cylinder, which is fixed on the mounting frame;

[0041] The rotating shaft three passes through the bottom surface of the mounting cylinder and is rotatably connected to the mounting cylinder. The rotating shaft three is connected to the output shaft of the motor three through a transmission component.

[0042] A rotating block, which is fixed to one end of the rotating shaft located inside the mounting cylinder;

[0043] A movable block, which is slidably disposed inside the mounting cylinder;

[0044] A limiting block, which is fixed on the movable block;

[0045] A limiting groove is formed on the inner surface of the mounting cylinder, and the limiting block is slidably disposed in the limiting groove.

[0046] Preferably, the vacuuming assembly includes:

[0047] An airbag, one end of which is connected to the inner top surface of the mounting cylinder, and the other end of which is connected to a moving block;

[0048] Two tracheae, one end of each of the two tracheae being connected to an airbag;

[0049] Two one-way valves are respectively installed on two air pipes;

[0050] Two annular air tubes are fixed on the inner rings of two outer frames respectively, and the two annular air tubes are connected by a pipe, with the other end of one of the air tubes connected to one of the annular air tubes.

[0051] A plurality of suction ports are provided, and the plurality of suction ports are respectively provided on two annular air pipes;

[0052] A dust collection box is mounted on a mounting frame and is connected to the other end of another air pipe.

[0053] Preferably, each of the outer frame bodies is provided with a shielding component, and the mounting bracket is provided with an adjustment component. The shielding component includes:

[0054] A sealing cylinder, which is fixed on the inner ring of the outer frame and has an arc-shaped structure;

[0055] A sliding plug is slidably connected to the inner surface of the sealing cylinder, and the sliding plug and the inner surface of the sealing cylinder are connected by a spring.

[0056] A push rod, one end of which is fixedly connected to a slide plug, and the other end of which extends to the outside of the sealing cylinder;

[0057] A baffle is fixed to one end of the push rod located outside the sealing cylinder. The baffle has an arc-shaped structure, and the side of the baffle fits against the inner ring of the outer frame. The baffle is positioned directly opposite the discharge port.

[0058] Preferably, the adjustment component includes:

[0059] A sealing box, which is fixed on a mounting bracket;

[0060] A sealing slide plate, which is slidably and sealingly connected to the inner surface of the sealing box;

[0061] A pull rod, one end of which is fixedly connected to a sealing slide plate, and the other end of which extends to the outside of the sealing box;

[0062] Oil, which accumulates between the sealing box and the sealing slide plate;

[0063] Two connecting pipes, one end of each connecting pipe is connected to a sealing box, and the other end of each connecting pipe is connected to two sealing cylinders respectively.

[0064] A method for using an automated quartz sand screening device includes the following steps:

[0065] Step 1: The staff pours in the quartz sand and starts motor 1. Motor 1 drives bevel gear 1 and bevel gear 2 to rotate, causing the vibrating frame to vibrate. The vertical rotation of the eccentric wheel causes the vibrating screen to vibrate in the vertical direction, ensuring that the quartz sand is evenly distributed on the screen.

[0066] Step 2: Start motor 3 to drive the rotating rod and scraper to rotate. The scraper evenly distributes the quartz sand on the vibrating screen to ensure that the quartz sand is in full contact with the screen mesh and improve the screening effect.

[0067] Step 3: After the screening is completed, turn off motor 1 to stop the vibration, start motor 2 to rotate the eccentric wheel to the horizontal direction, and start motor 1 again. At this time, the vibrating screen will vibrate in the horizontal direction, which facilitates the discharge of the screened quartz sand.

[0068] Step 4: The staff pulls the lever upwards to draw out the oil from the sealing cylinder by the sealing slide plate. After the oil is drawn out, the push rod drives the baffle to open the discharge port, and the quartz sand is automatically discharged through the discharge hopper.

[0069] Step 5: Start motor three. The transmission components drive shaft three to rotate, which in turn drives the dust collection equipment to work. Through the action of the airbag and the dust suction port, the dust generated during the screening process is sucked into the dust collection box to prevent the dust from flying around and to keep the working environment clean.

[0070] The beneficial effects of this invention are:

[0071] 1. Due to the design of the eccentric wheel, the vibrating screen vibrates in the vertical direction, which helps the quartz sand to be evenly distributed on the screen and prevents it from sliding towards the edge of the screen. The even distribution of the quartz sand ensures full contact with the screen, thereby improving the screening effect. The vibration of the vibrating screen causes the quartz sand particles to move and roll continuously on the screen, which helps to separate particles of different sizes and improves the screening accuracy and efficiency. The design of the scraper further enhances the screening effect. During the rotation of the scraper, it can spread the quartz sand accumulated on the screen evenly, so that more quartz sand particles have the opportunity to contact the screen, thereby reducing the situation of incomplete screening.

[0072] 2. By controlling the position of the eccentric wheel, the operator can freely adjust the vibration of the vibrating screen in the horizontal or vertical direction. When the vibrating screen vibrates in the vertical direction, it can fully and comprehensively screen the quartz sand. This vibration mode can ensure that the quartz sand is evenly distributed during the screening process, thereby improving the screening effect and screening accuracy. When the vibrating screen vibrates in the horizontal direction, it can realize automatic discharge, which makes the screening process more intelligent and efficient. The operator does not need to add quartz sand in small amounts and multiple times, reducing the operating burden and improving work efficiency.

[0073] 3. The dust generated during the sieving process is absorbed through the suction port and discharged into the dust collection box by the airbag, effectively preventing dust from scattering everywhere, reducing the impact of dust on the surrounding environment and the health of workers, and improving the cleanliness and comfort of the working environment. By collecting dust in a timely and effective manner, the risk of workers inhaling dust can be reduced, improving work safety and personnel health protection. In addition, the suction action is driven by three motors, eliminating the need for a separate power source and achieving a linkage effect, thus saving energy. Attached Figure Description

[0074] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0075] Figure 1 This is a three-dimensional structural diagram of the fixed frame, vibrating frame, and several vibrating screens in this invention;

[0076] Figure 2 This is a cross-sectional schematic diagram of the fixed frame, vibrating frame, and several vibrating screens in this invention;

[0077] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the diagram;

[0078] Figure 4 For the present invention Figure 2 Enlarged structural diagram at point B in the diagram;

[0079] Figure 5 This is a schematic diagram of the vibration source structure;

[0080] Figure 6 This is a schematic diagram of the structure of a vibrating screen;

[0081] Figure 7 This is a cross-sectional view of the sealing cylinder;

[0082] Figure 8 This is a schematic diagram of the drive component.

[0083] Figure 9 This is a schematic diagram of the adjustment component.

[0084] The diagram is marked as follows:

[0085] 1. Fixed frame; 2. Vibrating frame; 3. Vibrating screen; 4. Top cover; 5. Mounting frame; 61. Rotating shaft one; 62. Fixed collar; 63. Rotating shaft two; 64. Bevel gear one; 65. Motor one; 66. Bevel gear two; 67. Connecting rod; 68. Eccentric wheel; 71. Motor two; 72. Gear one; 73. Gear two; 81. Rotating collar; 82. Arc plate; 83. Positioning port; 84. Cylinder; 85. Positioning rod; 86. Positioning groove; 91. Motor three; 92. Rotating rod ; 93. Scraper; 101. Mounting cylinder; 102. Rotating shaft three; 103. Rotating block; 104. Moving block; 105. Limiting block; 106. Limiting groove; 111. Airbag; 112. Air pipe; 113. One-way valve; 114. Annular air pipe; 115. Dust suction port; 116. Dust collection box; 121. Sealing cylinder; 122. Sliding plug; 123. Push rod; 124. Baffle; 131. Sealing box; 132. Sealing slide plate; 133. Pull rod; 134. Connecting pipe. Detailed Implementation

[0086] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0087] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0088] like Figures 1 to 9As shown, the automated quartz sand screening equipment and method includes a fixed frame 1; a vibrating frame 2, which is mounted on the fixed frame 1 by several elastic elements; and two vibrating screens 3, which are stacked sequentially on the vibrating frame 2. Each vibrating screen 3 includes an outer frame, a screen, a discharge port, and a discharge hopper. The screen is fixed on the inner ring of the outer frame, the discharge port is located on the outer frame, and the discharge hopper is fixed on the outer circumference of the outer frame, with the discharge hopper and discharge port facing each other. A through-hole is provided in the middle of the upper screen. The top cover 4 is placed on the uppermost vibrating screen 3; the mounting frame 5 is fixed on the top cover 4 and has a U-shaped structure. In the initial state, the eccentric wheel 68 is in a vertical state, one of the positioning ports 83 is directly opposite the positioning groove 86, the positioning rod 85 passes through the directly opposite positioning port 83 and extends into the positioning groove 86. At this time, the positioning rod 85 fixes the position of the arc plate 82, and the position of the connecting rod 67 is also fixed. In addition, the two baffles 124 block the two discharge ports respectively.

[0089] like Figure 3 and Figure 5 As shown, the screening device also includes a vibration source structure, which is mounted on the vibration frame 2. The vibration source structure includes a vibration component, an adjustment component, and a positioning component.

[0090] The vibration assembly includes: a first rotating shaft 61, which is rotatably mounted on the vibration frame 2; a fixed collar 62, which is fixedly sleeved on the end of the first rotating shaft 61 away from the vibration frame 2; a second rotating shaft 63, one end of which is rotatably mounted on the fixed collar 62; a first bevel gear 64, which is fixedly sleeved on the end of the second rotating shaft 63 away from the fixed collar 62; a first motor 65, which is mounted on the vibration frame 2; a second bevel gear 66, which is connected to the output shaft of the first motor 65 and meshes with the first bevel gear 64; a connecting rod 67, which is fixed on the end of the second rotating shaft 63 away from the fixed collar 62; and an eccentric wheel 68, which is fixed on the end of the connecting rod 67 away from the second rotating shaft 63 and is eccentrically positioned with respect to the connecting rod 67.

[0091] The adjustment assembly includes: a second motor 71, which is mounted on the vibration frame 2; a first gear 72, which is fixedly sleeved on the output shaft of the second motor 71; and a second gear 73, which is fixedly sleeved on the first rotating shaft 61, and the second gear 73 meshes with the first gear 72.

[0092] The positioning assembly includes: a rotating collar 81, which is rotatably sleeved on the connecting rod 67; an arc-shaped plate 82, which is fixed on the rotating collar 81; two positioning ports 83, which are respectively opened at both ends of the arc-shaped plate 82; a cylinder 84, which is mounted on the vibration frame 2; a positioning rod 85, which is fixed to the telescopic end of the cylinder 84; and a positioning groove 86, which is opened on the vibration frame 2.

[0093] like Figure 2 As shown, the screening device also includes a scraping assembly, which is mounted on the mounting frame 5. The scraping assembly includes: a motor 91, which is mounted on the mounting frame 5; a rotating rod 92, one end of which is fixedly connected to the output shaft of the motor 91, and the other end of which passes through the opening on the upper screen; and two scrapers 93, both of which are fixedly sleeved on the rotating rod 92 and placed above the two screens respectively. When screening quartz sand, the operator pours the quartz sand onto the upper vibrating screen 3 and starts the motor 65. When the motor 65 is running, it drives the bevel gear 66 to rotate. When the bevel gear 66 rotates, it drives the bevel gear 64 to rotate. When the bevel gear 64 rotates, it drives the rotating shaft 63 to rotate. Furthermore, the connecting rod 67 and the eccentric wheel 68 will also rotate. When the eccentric wheel 68 rotates, it will generate centrifugal force, thereby causing the entire vibrating frame 2 to vibrate. Vibrating screen 3 will also vibrate. It should be noted that since the eccentric wheel 68 is located in a vertical position, when the eccentric wheel 68 rotates in the vertical direction, several vibrating screens 3 can vibrate in the vertical direction. This design can prevent the quartz sand from sliding towards the edge of the screen, so that the quartz sand is evenly distributed on the screen, thus allowing the quartz sand to fully contact the screen and ensuring the screening effect of the screen for quartz sand. In addition, when screening quartz sand, the operator starts motor 3 91 at the same time. When motor 3 91 is running, it can drive the rotating rod 92 to rotate, and the rotating rod 92 can drive the two scrapers 93 to rotate. As the scrapers 93 follow the rotating rod 92, the scrapers 93 can spread the quartz sand accumulated on the screen evenly on the screen, so that the quartz sand can fully and comprehensively contact the screen. This can further ensure the screening effect of the screen for quartz sand and avoid the situation of incomplete screening of quartz sand.

[0094] like Figure 2 , Figure 6 and Figure 8As shown, a drive assembly is provided on the mounting frame 5. The mounting frame 5 and several vibrating screens 3 are jointly provided with a dust collection assembly. The drive assembly includes: a mounting cylinder 101, fixed to the mounting frame 5; a rotating shaft 102, passing through the bottom surface of the mounting cylinder 101 and rotatably connected to it, and connected to the output shaft of the motor 91 via a transmission component; a rotating block 103, fixed to one end of the rotating shaft 102 located inside the mounting cylinder 101; a moving block 104, slidably disposed inside the mounting cylinder 101; a limiting block 105, fixed to the moving block 104; and a limiting groove 106, formed on the inner surface of the mounting cylinder 101, with the limiting block 105 slidably disposed within it. The components include: an airbag 111, one end of which is connected to the inner top surface of the mounting cylinder 101, and the other end of which is connected to the moving block 104; two air pipes 112, one end of which is connected to the airbag 111; two one-way valves 113, which are respectively installed on the two air pipes 112; two annular air pipes 114, which are respectively fixed on the inner rings of the two outer frames and are connected to each other by a pipe, with the other end of one of the air pipes 112 connected to one of the annular air pipes 114; a plurality of dust suction ports 115, which are respectively opened on the two annular air pipes 114; and a dust collection box 116, which is installed on the mounting frame 5 and is connected to the other end of the other air pipe 112.

[0095] The screening device also has a dust absorption function, which can collect the dust generated during the screening process and prevent the dust from scattering everywhere. Specifically, when the motor 391 is running, it can drive the rotating shaft 3102 to rotate through the transmission component. When the rotating shaft 3102 rotates, it can drive the rotating block 103 to rotate. Since the rotating block 103 and the moving block 104 together form a cylindrical structure, the rotating block 103 and the moving block 104 are the same size. The opposite ends of the rotating block 103 and the moving block 104 are provided with inclined surfaces. The outer surfaces of the rotating block 103 and the moving block 104 are in contact with the inner surface of the mounting cylinder 101. Therefore, during the rotation of the rotating block 103, its inclined surface can squeeze the inclined surface of the moving block 104. Under the limiting action of the limiting block 105 and the limiting groove 106, the moving block 104 cannot rotate with the rotating block 103. Therefore, the moving block 104 will move under the squeezing action of the rotating block 103. Thus, during the rotation of the rotating block 103, the moving block 104 moves... Block 104 can move up and down continuously. During the up and down movement, block 104 can continuously squeeze and stretch airbag 111. The two one-way valves 113 on the two air pipes 112 have opposite flow restriction directions. Specifically, one one-way valve 113 restricts the airflow to only enter the interior of airbag 111, and the other one-way valve 113 restricts the airflow to only flow out of the interior of airbag 111. Therefore, when airbag 111 is stretched, airbag 111 can draw air from the two annular air pipes 114 through the corresponding air pipe 112. When airbag 111 is compressed, the gas in airbag 111 will be forced into the interior of dust collection box 116 through the corresponding air pipe 112. Therefore, with the operation of motor 3 91, several dust suction ports 115 on the two annular air pipes 114 can absorb the dust generated during the screening process, and the airbag 111 discharges the dust into the interior of dust collection box 116. This design can collect the dust generated during the screening process and prevent the dust from scattering everywhere.

[0096] It is worth noting that the transmission component adopts a chain drive transmission method. Specifically, the transmission component may include two synchronous pulleys and a synchronous belt. The synchronous belt is sleeved on the two synchronous pulleys to realize the transmission between the two synchronous pulleys. The transmission wrap angle between the two synchronous pulleys and the synchronous belt is greater than 120°. In some other embodiments, the transmission component may also adopt a sprocket and chain transmission method. Without departing from the basic concept of the present invention, the transmission method of the transmission component can be flexibly changed, and all should be considered as within the protection scope defined by the present invention. In addition, the dust collection box 116 and the mounting frame 5 are connected by a detachable structure, which facilitates the cleaning of dust in the dust collection box 116 by the staff. The connection structure between the dust collection box 116 and the mounting frame 5 is existing technology and is not considered as an innovative part of the technical solution. It will not be described in detail here.

[0097] like Figure 6 , Figure 7 and Figure 9 As shown, each outer frame is equipped with a shielding component, and the mounting bracket 5 is equipped with an adjustment component. The shielding component includes: a sealing cylinder 121, which is fixed to the inner ring of the outer frame and has an arc-shaped structure; a sliding plug 122, which is slidably connected to the inner surface of the sealing cylinder 121 and is connected to the inner surface of the sealing cylinder 121 by a spring; a push rod 123, one end of which is fixedly connected to the sliding plug 122 and the other end of which extends to the outside of the sealing cylinder 121; and a baffle 124, which is fixed to the end of the push rod 123 located outside the sealing cylinder 121 and has an arc-shaped structure. The sides of the outer frame and the inner ring of the outer frame fit together. The baffle 124 is positioned directly opposite the discharge port. The adjustment assembly includes: a sealing box 131, which is fixed on the mounting bracket 5; a sealing slide plate 132, which is slidably connected to the inner surface of the sealing box 131; a pull rod 133, one end of which is fixedly connected to the sealing slide plate 132, and the other end of which extends to the outside of the sealing box 131; oil, which accumulates between the sealing box 131 and the sealing slide plate 132; and two connecting pipes 134, one end of which is connected to the sealing box 131, and the other end of which is connected to two sealing cylinders 121 respectively.

[0098] After the screening process is completed, the operator first shuts off motor 65, stopping bevel gears 64 and 66 from rotating. Then, motor 71 is started. Motor 71 drives gear 72, which in turn drives gear 73, which meshes with it. Gear 73's rotation drives shaft 61, which in turn drives fixed collar 62. Shaft 63, bevel gear 66, connecting rod 67, and eccentric wheel 68 also rotate until eccentric wheel 68 rotates 90°, bringing it to a horizontal position. Upward, the operator shuts off motor 2 (71) and restarts motor 1 (65). Based on the above principle, motor 1 (65) drives eccentric wheel 68 to rotate. Since eccentric wheel 68 is horizontal, its rotation causes several vibrating screens 3 to vibrate horizontally. Under these conditions, the quartz sand on the screen can slide towards the edge of the screen, facilitating the discharge of the screened quartz sand. Furthermore, the operator pulls the lever 133 upward. As lever 133 moves upward, it drives the sealing slide plate 132 to move. The sealing slide plate 132 moves... When in motion, the oil in the two sealed cylinders 121 can be extracted. When the oil is extracted, the sliding plug 122 can be reset under the action of the spring, causing the sliding plug 122 to drive the push rod 123 to move. When the push rod 123 moves, it can drive the baffle 124 to move until the baffle 124 is misaligned with the discharge port. At this time, the baffle 124 no longer blocks the discharge port, and the quartz sand will be discharged through the discharge port and the discharge hopper under the action of the horizontally vibrating screen, thus realizing the automatic discharge of quartz sand. Based on the above process, the operator can control the position of the eccentric wheel 68 to control the vibrating screen 3 in the horizontal direction or Vibrating vertically, the vibrating screen 3 can fully and comprehensively screen the quartz sand. When vibrating horizontally, the vibrating screen 3 can automatically discharge the material. It is worth noting that the rotating shaft 61 is coaxial with the output shaft of the motor 65, and the bevel gear 64 is fixed on the output shaft of the motor 65. When the rotating shaft 61 rotates, the bevel gear 66 can always be in the position of meshing with the bevel gear 64. This design allows the motor 65 to smoothly drive the eccentric wheel 68 located in the horizontal or vertical state to rotate.

[0099] This invention also discloses a method for using an automated quartz sand screening device, comprising the following steps:

[0100] Step 1: The staff pours in the quartz sand and starts the motor 65. The motor 65 drives the bevel gear 64 and bevel gear 66 to rotate, causing the vibrating frame 2 to vibrate. The vertical rotation of the eccentric wheel 68 causes the vibrating screen 3 to vibrate in the vertical direction, ensuring that the quartz sand is evenly distributed on the screen.

[0101] Step 2: Start motor 3 91, which drives the rotating rod 92 and scraper 93 to rotate. The scraper 93 evenly distributes the quartz sand on the vibrating screen 3, ensuring that the quartz sand is in full contact with the screen and improving the screening effect.

[0102] Step 3: After the screening is completed, turn off motor 1 65 to stop the vibration, start motor 2 71 to rotate the eccentric wheel 68 to the horizontal direction, and start motor 1 65 again. At this time, the vibrating screen 3 will vibrate in the horizontal direction, which is convenient for discharging the screened quartz sand.

[0103] Step 4: The staff pulls the lever 133 upwards, causing the sealing slide plate 132 to draw out the oil in the sealing cylinder 121. After the oil is drawn out, the push rod 123 drives the baffle 124 to open the discharge port, and the quartz sand is automatically discharged through the discharge hopper.

[0104] Step 5: Start motor 391. The transmission component drives the rotating shaft 3102 to rotate, which in turn drives the dust collection equipment to work. Through the action of airbag 111 and dust suction port 115, the dust generated during the screening process is sucked into the dust collection box 116 to prevent the dust from flying around and to keep the working environment clean.

[0105] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0106] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. An automated quartz sand screening device, characterized in that, include: Fixture (1); Vibration frame (2), the vibration frame (2) is mounted on the fixed frame (1) by a number of elastic elements; Two vibrating screens (3) are stacked on a vibrating frame (2) in sequence. Each vibrating screen (3) includes an outer frame, a screen, a discharge port and a discharge hopper. The screen is fixed on the inner ring of the outer frame. The discharge port is opened on the outer frame. The discharge hopper is fixed on the outer circumference of the outer frame and the discharge port is directly opposite each other. A through hole is opened in the middle of the upper screen. Top cover (4), which is placed on the uppermost vibrating screen (3); Mounting bracket (5), which is fixed on top cover (4) and has a U-shaped structure; The vibration source structure is set on the vibration frame (2) and includes a vibration component, an adjustment component and a positioning component; A scraper assembly, which is mounted on a mounting bracket (5); The vibration assembly includes: Rotary shaft one (61), said rotating shaft one (61) is rotatably mounted on the vibration frame (2); A fixing collar (62) is fixedly sleeved on the end of the rotating shaft (61) away from the vibrating frame (2); Rotating shaft two (63), one end of which is rotatably mounted on a fixed collar (62); A bevel gear (64) is fixedly sleeved on the end of the rotating shaft (63) away from the fixed collar (62); Motor 1 (65), said motor 1 (65) is mounted on the vibration frame (2); Bevel gear two (66) is connected to the output shaft of motor one (65), and bevel gear two (66) meshes with bevel gear one (64); Linkage (67), which is fixed to the end of the rotating shaft (63) away from the fixed collar (62); An eccentric wheel (68) is fixed at one end of the connecting rod (67) away from the second rotating shaft (63), and the eccentric wheel (68) and the connecting rod (67) are eccentrically positioned. The adjustment component includes: Motor 2 (71), which is mounted on the vibration frame (2); Gear 1 (72), which is fixedly sleeved on the output shaft of motor 2 (71); Gear 2 (73), which is fixedly sleeved on shaft 1 (61), and gear 2 (73) meshes with gear 1 (72); The positioning component includes: Rotating collar (81), which is rotatably sleeved on connecting rod (67); An arc-shaped plate (82) is fixed on a rotating collar (81); Two positioning ports (83) are respectively opened at both ends of the arc-shaped plate (82); Cylinder (84), said cylinder (84) is mounted on vibrating frame (2); Positioning rod (85), the positioning rod (85) is fixed to the telescopic end of cylinder (84); Positioning groove (86) is formed on the vibration frame (2).

2. The automated quartz sand screening equipment according to claim 1, characterized in that, The scraper assembly includes: Motor 3 (91), which is mounted on mounting bracket (5); Rotating rod (92), one end of which is fixedly connected to the output shaft of motor three (91), and the other end of which passes through the opening on the upper screen; Two scrapers (93) are fixedly mounted on the rotating rod (92) and placed above the two screens respectively.

3. The automated quartz sand screening equipment according to claim 1, characterized in that, A drive assembly is provided on the mounting frame (5), and a dust collection assembly is provided on the mounting frame (5) and several vibrating screens (3). The drive assembly includes: Mounting cylinder (101), which is fixed on mounting bracket (5); Rotary shaft three (102) passes through the bottom surface of mounting cylinder (101) and is rotatably connected to mounting cylinder (101). Rotary shaft three (102) is connected to the output shaft of motor three (91) through a transmission component. Rotating block (103), the rotating block (103) is fixed at one end of the rotating shaft three (102) located inside the mounting cylinder (101); A movable block (104) is slidably disposed inside the mounting cylinder (101); A limiting block (105) is fixed on a moving block (104); The limiting groove (106) is opened on the inner surface of the mounting cylinder (101), and the limiting block (105) is slidably disposed in the limiting groove (106).

4. The automated quartz sand screening equipment according to claim 3, characterized in that, The dust collection assembly includes: An airbag (111) is connected at one end to the inner top surface of the mounting cylinder (101) and at the other end to the moving block (104). Two tracheas (112), one end of each trachea (112) is connected to an air bag (111); Two one-way valves (113) are respectively installed on two air pipes (112); Two annular air tubes (114) are fixed on the inner rings of the two outer frames respectively, and the two annular air tubes (114) are connected by a pipe. The other end of one of the air tubes (112) is connected to one of the annular air tubes (114). A plurality of suction ports (115) are provided on two annular air pipes (114); A dust collection box (116) is mounted on a mounting bracket (5) and is connected to the other end of another air pipe (112).

5. The automated quartz sand screening equipment according to claim 1, characterized in that, Each of the outer frames is provided with a shielding component, and the mounting bracket (5) is provided with an adjustment component. The shielding component includes: A sealing cylinder (121) is fixed on the inner ring of the outer frame, and the sealing cylinder (121) has an arc-shaped structure. A sliding plug (122) is slidably connected to the inner surface of the sealing cylinder (121), and the sliding plug (122) and the inner surface of the sealing cylinder (121) are connected by a spring. A push rod (123), one end of which is fixedly connected to a slide plug (122), and the other end of which extends to the outside of the sealing cylinder (121); Baffle (124) is fixed to one end of push rod (123) located outside sealing cylinder (121). Baffle (124) has an arc-shaped structure, and the side of baffle (124) fits against the inner ring of outer frame. Baffle (124) is set directly opposite the discharge port.

6. The automated quartz sand screening equipment according to claim 5, characterized in that, The adjustment component further includes: A sealing box (131) is fixed on a mounting bracket (5); A sealing slide plate (132) is slidably connected to the inner surface of a sealing box (131); A pull rod (133), one end of which is fixedly connected to a sealing slide plate (132), and the other end of which extends to the outside of the sealing box (131); Oil, which accumulates between the sealing box (131) and the sealing slide plate (132); Two connecting pipes (134) are connected at one end to a sealing box (131), and at the other end to two sealing cylinders (121).

7. A method of using an automated quartz sand screening device, based on any one of claims 1-6, characterized in that, Includes the following steps: Step 1: The staff pours in the quartz sand and starts the motor 1 (65). The motor 1 (65) drives the bevel gear 1 (64) and bevel gear 2 (66) to rotate, causing the vibrating frame (2) to vibrate. The vertical rotation of the eccentric wheel (68) causes the vibrating screen (3) to vibrate in the vertical direction, ensuring that the quartz sand is evenly distributed on the screen. Step 2: Start motor 3 (91) to drive the rotating rod (92) and scraper (93) to rotate. The scraper (93) evenly distributes the quartz sand on the vibrating screen (3) to ensure that the quartz sand is in full contact with the screen and improve the screening effect. Step 3: After the screening work is completed, turn off motor 1 (65) to stop the vibration, start motor 2 (71) to rotate the eccentric wheel (68) to the horizontal direction, and start motor 1 (65) again. At this time, the vibrating screen (3) vibrates in the horizontal direction, which facilitates the discharge of the screened quartz sand. Step 4: The staff pulls the lever (133) upwards, causing the sealing slide plate (132) to draw out the oil in the sealing cylinder (121). After the oil is drawn out, the push rod (123) drives the baffle (124) to open the discharge port, and the quartz sand is automatically discharged through the discharge hopper. Step 5: Start motor 3 (91), the transmission component drives shaft 3 (102) to rotate, and drive the dust collection equipment to work. Through the action of air bag (111) and dust suction port (115), the dust generated during the screening process is sucked into the dust collection box (116) to prevent the dust from flying around and keep the working environment clean.

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