Automatic quartz sand screening equipment and method thereof

Abstract

The invention relates to the technical field of quartz sand screening, in particular to automatic quartz sand screening equipment and a method thereof. The vibration frame is arranged on the fixing frame through a plurality of elastic pieces; the two vibrating screens are sequentially stacked on the vibrating frame, each vibrating screen comprises an outer frame body, a screen mesh, a discharging port and a discharging hopper, the screen mesh is fixed to the inner ring of the outer frame body, the discharging port is formed in the outer frame body, the discharging hopper is fixed to the peripheral face of the outer frame body, the discharging hopper and the discharging port are arranged in a right-opposite mode, and the vibrating screen is arranged on the outer frame body. A penetrating opening is formed in the middle of the screen located at the upper end. Compared with the prior art, through the design of the eccentric wheel, the vibrating screen vibrates in the vertical direction, quartz sand can be evenly distributed on the screen cloth, the situation that the quartz sand slides towards the edge of the screen cloth is avoided, particles of different sizes can be separated, and the screening precision and efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of quartz sand screening, and in particular to an automatic quartz sand screening device and a method thereof. Background Art

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

[0003] After searching, the Chinese patent with the announcement number CN215587104U discloses a machine-made sand screening device, in which the bottom of the sand and gravel screen is a circular screen; the side of the sand and gravel screen 5 / 6 is perpendicular to the bottom surface, and the side of 1 / 6 is obliquely extended upward and outward to form a slope leading to the inner bottom surface of the sand and gravel screen, and the top of the slope and the top of the sand and gravel screen form a material discharge port; a sealing cover is provided at the bottom of the sand and gravel screen corresponding to the position of the material discharge port; the symmetrical slope side of the sand and gravel screen is provided with a connecting device perpendicular to the slope surface; the connecting device is a fixing part fixedly connected to the bottom of the side wall of the sand and gravel screen, and a connecting ring that can rotate up and down is provided at the center of the fixing part, and a hook is provided upward at the top of the side wall of the sand and gravel screen corresponding to the fixing part. The above scheme is arranged according to the normal distribution curve of the machine-made sand grading, so that when a group of sand and gravel screens are used for screening machine-made sand, each screen is fully utilized to increase the work efficiency. However, the above scheme still has the following shortcomings in actual use: When the screening device is actually used, the staff pours quartz sand onto the uppermost circular screen, and the vibrating circular screen screens the quartz sand. During the screening process, the circular screen usually vibrates in the horizontal direction. This vibration action makes the quartz sand tend to move toward the edge of the circular screen, so that the quartz sand can be discharged through the discharge port on the edge of the circular screen. However, if there is too much quartz sand accumulated on the screen, the quartz sand on the top layer will slide to the edge of the circular screen and be discharged through the discharge port before being screened by the screen. This limits the screening effect of the screen on the quartz sand. In order to solve this problem, the staff will put quartz sand onto the screening device in small amounts and multiple times. Although this operation can avoid the problem of quartz sand accumulated on the top layer not being screened, it will limit the working efficiency of the device and increase the workload of the staff.

[0004] Therefore, the present application provides an automatic quartz sand screening device and method thereof to meet the needs of adaptive pipe raising and lowering when arranging pipe rods. Summary of the invention

[0005] In view of this, the object of the present invention is to provide an automatic quartz sand screening device and method thereof to solve the problem of low quartz sand screening accuracy.

[0006] Based on the above purpose, the present invention provides a quartz sand automatic screening device, comprising: Fixed frame; A vibration frame, wherein the vibration frame is arranged on a fixed frame through a plurality of elastic members; Two vibrating screens, the two vibrating screens are stacked on the vibrating frame in sequence, each of the vibrating screens comprises 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 peripheral surface of the outer frame, and the discharge hopper and the discharge port are arranged opposite to each other, and a through hole is opened in the middle of the screen at the upper end; A top cover, the top cover being placed on the uppermost vibrating screen; A mounting frame, the mounting frame is fixed on the top cover, and the mounting frame has a U-shaped structure; A vibration source structure, wherein the vibration source structure is arranged on a vibration frame, and the vibration source structure comprises a vibration component, an adjustment component and a positioning component; A scraper assembly is arranged on a mounting frame.

[0007] Preferably, the vibration assembly comprises: A rotating shaft 1, wherein the rotating shaft 1 is rotatably mounted on the vibration frame; A fixed collar, wherein the fixed collar is fixedly mounted on an end of the rotating shaft away from the vibration frame; A second rotating shaft, one end of which is rotatably mounted on a fixed collar; Bevel gear one; Motor 1, wherein the motor 1 is mounted on the vibration frame, and the output shaft of the motor 1 is fixedly connected to the bevel gear 1; Bevel gear 2, wherein the bevel gear 2 fixed sleeve is arranged at one end of the rotating shaft 2 away from the fixed sleeve ring, and the bevel gear 2 and the bevel gear 1 are meshed with each other; A connecting rod, the connecting rod is fixed to one end of the second rotating shaft away from the fixing collar; The eccentric wheel is fixed to one end of the connecting rod away from the second rotating shaft, and the eccentric wheel is eccentrically arranged between the connecting rod.

[0008] Preferably, the adjustment component comprises: Motor 2, wherein the motor 2 is mounted on a vibration frame; Gear 1, wherein the gear 1 is fixedly sleeved on the output shaft of the motor 2; Gear 2 is fixedly sleeved on the rotating shaft 1, and the gear 2 and the gear 1 are meshed with each other.

[0009] Preferably, the positioning component comprises: A rotating sleeve, wherein the rotating sleeve is rotatably sleeved on the connecting rod; An arc-shaped plate, wherein the arc-shaped plate is fixed on the rotating collar; Two positioning openings, the two positioning openings are respectively opened at two ends of the arc plate; A cylinder, wherein the cylinder is mounted on a vibration frame; A positioning rod, the positioning rod being fixed to the telescopic end of the cylinder; A positioning groove is provided on the vibration frame.

[0010] Preferably, the scraper assembly comprises: Motor 3, wherein the motor 3 is mounted on a mounting frame; A rotating rod, one end of which is fixedly connected to the output shaft of the motor 3, and the other end of which passes through the hole on the upper screen; Two scrapers are fixedly sleeved on the rotating rod, and the two scrapers are respectively placed above the two screens.

[0011] Preferably, a driving assembly is provided on the mounting frame, and a dust collecting assembly is provided on the mounting frame and a plurality of vibrating screens, and the driving assembly comprises: A mounting tube, wherein the mounting tube is fixed on the mounting frame; A rotating shaft three, wherein the rotating shaft three passes through the bottom surface of the mounting tube, and the rotating shaft three is rotationally connected to the mounting tube, and the rotating shaft three is transmission-connected to the output shaft of the motor three via a transmission member; A rotating block, the rotating block is fixed to one end of the rotating shaft located inside the mounting cylinder; A moving block, the moving block is slidably arranged inside the mounting cylinder; A limit block, wherein the limit block is fixed on the moving block; The limiting groove is arranged on the inner surface of the installation tube, and the limiting block is slidably arranged in the limiting groove.

[0012] Preferably, the dust collection assembly comprises: An airbag, one end of which is connected to the inner top surface of the mounting tube, and the other end of which is connected to the moving block; Two tracheas, one end of each of the tracheas is connected to the air bag; Two one-way valves, the two one-way valves are respectively installed on the two air pipes; Two annular air pipes, the two annular air pipes are respectively fixed on the inner circles of the two outer frames, and the two annular air pipes are connected through a pipeline, and the other end of one of the air pipes is connected to one of the annular air pipes; A plurality of dust suction ports, wherein the plurality of dust suction ports are respectively opened on two annular air pipes; A dust collecting box is installed on the mounting frame and is connected to the other end of another air pipe.

[0013] Preferably, each of the outer frames is provided with a shielding assembly, and the mounting frame is provided with an adjusting assembly, and the shielding assembly comprises: A sealing cylinder, which is fixed on the inner ring of the outer frame and has an arc-shaped structure; A sliding plug, the sliding plug is sealingly and slidingly connected to the inner surface of the sealing cylinder, and the sliding plug and the inner surface of the sealing cylinder are connected via a spring; A push rod, one end of which is fixedly connected to the sliding plug, and the other end of which extends to the outside of the sealing cylinder; The baffle is fixed to one end of the push rod outside the sealing cylinder, the baffle is in an arc-shaped structure, and the side surface of the baffle fits with the inner circle of the outer frame, and the baffle is arranged opposite to the discharge port.

[0014] Preferably, the adjustment component comprises: A sealing box, wherein the sealing box is fixed on the mounting frame; A sealing slide plate, wherein the sealing slide plate is sealingly and slidably connected to the inner surface of the sealing box; A pull rod, one end of which is fixedly connected to the sealing slide plate, and the other end of which extends to the outside of the sealing box; Oil, the oil is accumulated between the sealing box and the sealing slide plate; Two connecting tubes, one end of each of the connecting tubes is connected to the sealing box, and the other end of each of the connecting tubes is connected to two sealing cylinders respectively.

[0015] A method for using a quartz sand automatic screening device comprises the following steps: Step 1: The staff pours quartz sand and starts motor 1. Motor 1 drives bevel gear 1 and bevel gear 2 to rotate, causing the vibration frame to vibrate. The vertical rotation of the eccentric wheel makes the vibrating screen vibrate in the vertical direction to ensure that the quartz sand is evenly distributed on the screen. Step 2: Start the motor 3 to drive the rotating rod and the 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 to improve the screening effect. Step 3: After the screening work is completed, turn off the motor 1 to stop the vibration, start the motor 2 to rotate the eccentric wheel to the horizontal direction, and start the motor 1 again. At this time, the vibrating screen vibrates in the horizontal direction, which is convenient for discharging the screened quartz sand; Step 4: The staff pulls the pull rod upwards, so that the sealing slide plate draws out the oil in the sealing cylinder. 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; Step 5. Start motor 3, and the transmission part drives shaft 3 to rotate, which drives the dust collection device to work. Through the action of the air bag 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 keep the working environment clean.

[0016] Beneficial effects of the present invention: 1. Due to the design of the eccentric wheel, the vibrating screen vibrates in the vertical direction, which helps to evenly distribute the quartz sand on the screen and avoids the quartz sand sliding to the edge of the screen. The even distribution of the quartz sand ensures its full contact with the screen, thereby improving the screening effect. The vibration of the vibrating screen makes the quartz sand particles move and roll on the screen continuously, which helps to separate particles of different sizes and improve the screening accuracy and efficiency. The design of the scraper further enhances the screening effect. The scraper can evenly spread the quartz sand accumulated on the screen during the rotation process, so that more quartz sand particles have the opportunity to contact the screen, thereby reducing the situation of incomplete screening; 2. By controlling the position of the eccentric wheel, the staff 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 method 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 staff does not need to add quartz sand in small amounts and multiple times, which reduces the operating burden and improves work efficiency. 3. The dust generated during the screening process is absorbed by the suction port and discharged into the dust collection box by the air bag, which effectively prevents the dust from flying around, reduces the impact of dust on the surrounding environment and the health of workers, and improves 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 dust collection action is driven by motor three, and there is no need to set up a separate power source, achieving a linkage effect and saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the fixed frame, the vibrating frame and several vibrating screens in the present invention; Figure 2 It is a schematic diagram of the cross-section structure of the fixed frame, the vibrating frame and several vibrating screens in the present invention; Figure 3 For the present invention Figure 2 A is an enlarged structural diagram; Figure 4 For the present invention Figure 2 The enlarged structural diagram at B in FIG. Figure 5 is a structural schematic diagram of a vibration source structure; Figure 6 It is a structural schematic diagram of a vibrating screen; Figure 7 It is a schematic diagram of the cutaway structure of the sealing cylinder; Figure 8 is a schematic diagram of the structure of the drive component; Fig. 9 Schematic diagram of the structure of the adjustment component.

[0019] The markings in the figure are: 1. Fixed frame; 2. Vibrating frame; 3. Vibrating screen; 4. Top cover; 5. Mounting frame; 61. Rotating shaft 1; 62. Fixed collar; 63. Rotating shaft 2; 64. Bevel gear 1; 65. Motor 1; 66. Bevel gear 2; 67. Connecting rod; 68. Eccentric wheel; 71. Motor 2; 72. Gear 1; 73. Gear 2; 81. Rotating collar; 82. Arc plate; 83. Positioning port; 84. Cylinder; 85. Positioning rod; 86. Positioning slot; 91. Motor 3; 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, air bag; 112, air pipe; 113, one-way valve; 114, annular air pipe; 115, dust suction port; 116, dust collecting 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 DESCRIPTION

[0020] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0021] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figures 1 to 9 As shown, the quartz sand automatic screening equipment and method thereof include a fixed frame 1; a vibrating frame 2, the vibrating frame 2 is arranged on the fixed frame 1 through a plurality of elastic members; two vibrating screens 3, the two vibrating screens 3 are stacked on the 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 circle of the outer frame, the discharge port is opened on the outer frame, the discharge hopper is fixed on the outer peripheral surface of the outer frame, and the discharge hopper is arranged opposite to the discharge port, and a through hole is opened in the middle of the screen at the upper end. Top cover 4, top cover 4 is placed on the uppermost vibrating screen 3; mounting frame 5, mounting frame 5 is fixed on top cover 4, and mounting frame 5 is U-shaped structure, in the initial state, eccentric wheel 68 is in a vertical state, one of the positioning openings 83 is opposite to the positioning groove 86, positioning rod 85 passes through the opposite positioning opening 83, and extends into the positioning groove 86, at this time, positioning rod 85 plays a role in fixing the position of arc plate 82, the position of connecting rod 67 is also fixed, in addition, two baffles 124 respectively block the two discharge ports; like Figure 3 and Figure 5 As shown, the screening device further includes a vibration source structure, which is arranged on a vibration frame 2, and includes a vibration component, an adjustment component and a positioning component; The vibration assembly includes: a rotating shaft 61, which is rotatably mounted on the vibration frame 2; a fixed collar 62, which is fixedly sleeved on one end of the rotating shaft 61 away from the vibration frame 2; a rotating shaft 63, one end of the rotating shaft 63 is rotatably mounted on the fixed collar 62; a bevel gear 64; a motor 65, which is mounted on the vibration frame 2, and the output shaft of the motor 65 is fixedly connected to the bevel gear 64; a bevel gear 66, which is fixedly sleeved on one end of the rotating shaft 63 away from the fixed collar 62, and the bevel gear 66 and the bevel gear 64 are meshed with each other; a connecting rod 67, which is fixed on one end of the rotating shaft 63 away from the fixed collar 62; an eccentric wheel 68, which is fixed on one end of the connecting rod 67 away from the rotating shaft 63, and the eccentric wheel 68 is eccentrically arranged with the connecting rod 67; The adjustment component includes: a motor 2 71, which is mounted on the vibration frame 2; a gear 1 72, which is fixedly sleeved on the output shaft of the motor 2 71; a gear 2 73, which is fixedly sleeved on the rotating shaft 1 61, and the gear 2 73 and the gear 1 72 are meshed with each other; The positioning assembly includes: a rotating collar 81, which is rotatably sleeved on the connecting rod 67; an arc plate 82, which is fixed on the rotating collar 81; two positioning holes 83, which are respectively opened at both ends of the arc plate 82; a cylinder 84, which is installed on the vibration frame 2; a positioning rod 85, which is fixed on the telescopic end of the cylinder 84; and a positioning groove 86, which is opened on the vibration frame 2. like Figure 2As shown, the screening device also includes a scraper assembly, which is arranged on the mounting frame 5, and the scraper assembly includes: a motor 3 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 3 91, and the other end of the rotating rod 92 passes through the hole on the upper end screen; two scrapers 93, both of which are fixedly sleeved on the rotating rod 92, and the two scrapers 93 are respectively placed above the two screens. When the quartz sand is screened, the staff pours the quartz sand on the upper end of the vibrating screen 3 and starts the motor 1 65. When the motor 1 65 is running, it can drive the bevel gear 1 64 to rotate, and when the bevel gear 1 64 rotates, it can drive the bevel gear 2 66 to rotate, and the connecting rod 67 and the eccentric wheel 68 will also rotate accordingly. The eccentric wheel 68 will generate centrifugal force when rotating, so that the entire vibration frame 2 vibrates, and a number of vibrating screens 3 will also vibrate accordingly. 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 perform vibrating motion in the vertical direction. This design can prevent the quartz sand from sliding toward the edge of the screen, so that the quartz sand is evenly distributed on the screen, so that the quartz sand can fully contact with the screen, thereby ensuring the screening effect of the screen on the quartz sand. In addition, when screening the quartz sand, the staff starts the motor 3 91 at the same time. When the 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. In the process of following the rotation of the rotating rod 92, the scraper 93 can evenly spread the quartz sand accumulated on the screen on the screen, so that the quartz sand can fully and comprehensively contact with the screen, which can further ensure the screening effect of the screen on the quartz sand and avoid the situation where the quartz sand is not fully screened. like Figure 2 , Figure 6 and Figure 8As shown, a driving component is arranged on the mounting frame 5, and a dust collecting component is arranged on the mounting frame 5 and the plurality of vibrating screens 3, and the driving component comprises: a mounting cylinder 101, the mounting cylinder 101 is fixed on the mounting frame 5; a rotating shaft 102, the rotating shaft 102 passes through the bottom surface of the mounting cylinder 101, and the rotating shaft 102 is rotatably connected with the mounting cylinder 101, and the rotating shaft 102 is connected with the output shaft of the motor 3 91 through a transmission member; a rotating block 103, the rotating block 103 is fixed to one end of the rotating shaft 102 located inside the mounting cylinder 101; a moving block 104, the moving block 104 is slidably arranged inside the mounting cylinder 101; a limiting block 105, the limiting block 105 is fixed on the moving block 104; a limiting groove 106, the limiting groove 106 is arranged on the inner surface of the mounting cylinder 101, and the limiting block 105 is slidably arranged in the limiting groove 106, The assembly includes: an air bag 111, one end of which is connected to the inner top surface of the mounting tube 101, and the other end of which is connected to the moving block 104; two air pipes 112, one ends of which are both connected to the air bag 111; two one-way valves 113, which are respectively mounted on the two air pipes 112; two annular air pipes 114, which are respectively fixed on the inner circles of the two outer frames, and the two annular air pipes 114 are connected through pipelines, and the other end of one of the air pipes 112 is 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; a dust collecting box 116, which is mounted on the mounting frame 5, and is connected to the other end of the other air pipe 112; The screening device also has the function of absorbing dust, which can collect the dust generated during the screening process to prevent the dust from flying around. Specifically, when the motor 3 91 is running, it can drive the rotating shaft 3 102 to rotate through the transmission member, and when the rotating shaft 3 102 rotates, it can drive the rotating block 103 to rotate. Since the rotating block 103 and the moving block 104 form a cylindrical structure together, the rotating block 103 and the moving block 104 are of the same size, and the opposite ends of the rotating block 103 and the moving block 104 are both provided with inclined surfaces. The outer surfaces of the rotating block 103 and the moving block 104 are both in contact with the inner surface of the mounting tube 101. Therefore, during the rotation of the rotating block 103, the inclined surface part of the moving block 104 can squeeze the inclined surface part 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, so the moving block 104 will move under the squeezing action of the rotating block 103. The block 104 can continuously move up and down, and the moving block 104 can continuously squeeze and stretch the airbag 111 during the process of moving up and down. The two one-way valves 113 on the two air pipes 112 have opposite flow limiting directions. Specifically, one of the one-way valves 113 limits the airflow to only enter the interior of the airbag 111, and the other one-way valve 113 limits the airflow to only flow out of the interior of the airbag 111. Therefore, when the airbag 111 is stretched, the airbag 111 can extract the air in the two annular air pipes 114 through the corresponding air pipe 112. When the airbag 111 is compressed, the gas in the airbag 111 will be pressed into the interior of the dust collecting box 116 through the corresponding air pipe 112. Therefore, with the operation of the motor three 91, the 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 the dust collecting box 116. This design can collect the dust generated during the screening process and prevent the dust from escaping everywhere. It is worth noting that the transmission member adopts a chain drive transmission mode. Specifically, the transmission member may include two synchronous wheels and a synchronous belt. The synchronous belt is sleeved on the two synchronous wheels to realize the transmission between the two synchronous wheels. The transmission angle between the two synchronous wheels and the synchronous belt is greater than 120°. In some other embodiments, the transmission member can also adopt a sprocket and chain transmission mode. Without departing from the basic concept of the present invention, the transmission mode of the transmission member can be flexibly changed, which should be regarded as within the protection scope defined by the present invention. In addition, the dust box 116 is connected to the mounting frame 5 by a detachable structure, which is convenient for the staff to clean the dust in the dust box 116. The connection structure between the dust box 116 and the mounting frame 5 is a prior art and is not an innovative part of the present technical solution. It will not be described in detail here. like Figure 6 , Figure 7 and Fig. 9As shown, each outer frame is provided with a shielding assembly, and the mounting frame 5 is provided with an adjusting assembly, and the shielding assembly 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 sealingly and slidingly connected to the inner surface of the sealing cylinder 121, and the sliding plug 122 is connected to the inner surface of the sealing cylinder 121 through a spring; a push rod 123, one end of the push rod 123 is fixedly connected to the sliding plug 122, and the other end of the push rod 123 extends to the outside of the sealing cylinder 121; a baffle 124, which is fixed to one end of the push rod 123 located outside the sealing cylinder 121, and has an arc-shaped structure, and the baffle 124 The side surface of the outer frame is fitted with the inner circle of the outer frame, and the baffle 124 is arranged opposite to the discharge port. The adjustment component includes: a sealing box 131, which is fixed on the mounting frame 5; a sealing slide plate 132, which is sealingly and 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 is accumulated between the sealing box 131 and the sealing slide plate 132; two connecting pipes 134, one end of which is connected to the sealing box 131, and the other end of which is connected to the two sealing cylinders 121 respectively; After the screening work is completed, the staff first turns off the motor 1 65 to stop the rotation of the bevel gear 1 64 and the bevel gear 2 66, and then starts the motor 2 71. When the motor 2 71 is running, it drives the gear 1 72 to rotate. When the gear 1 72 rotates, it can drive the gear 2 73 meshing with it to rotate. When the gear 2 73 rotates, it can drive the rotating shaft 1 61 to rotate. The rotation of the rotating shaft 1 61 drives the fixed collar 62 to rotate. The rotating shaft 2 63, the bevel gear 2 66, the connecting rod 67 and the eccentric wheel 68 will also rotate accordingly until the eccentric wheel 68 rotates 90 degrees, so that the eccentric wheel 68 rotates to the horizontal direction. The staff turns off the motor 2 71 at this time, and starts the motor 1 65 again. According to the above principle, the motor 1 65 can drive the eccentric wheel 68 to rotate when it is running. Since the eccentric wheel 68 is in the horizontal direction at this time, the eccentric wheel 68 rotates so that the plurality of vibrating screens 3 can vibrate in the horizontal direction. In this case, the quartz sand on the screen can slide toward the edge of the screen, which is convenient for discharging the quartz sand after screening. Further, the staff pulls the pull rod 133 upward, and the pull rod 133 can drive the sealing slide plate 132 to move when it moves upward. The sealing slide plate 132 moves upward. When the oil is pumped out, the sliding plug 122 can be reset under the action of the spring, so that the sliding plug 122 drives the push rod 123 to move, and the push rod 123 can drive the baffle 124 to move until the baffle 124 is staggered 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, so that the automatic discharge of the quartz sand can be realized. Based on the above process, the staff can control the horizontal direction or Vibrate in the vertical direction. When the vibrating screen 3 vibrates in the vertical direction, the vibrating screen 3 can fully and comprehensively screen the quartz sand. When the vibrating screen 3 vibrates in the horizontal direction, the vibrating screen 3 can realize automatic discharging. It is worth noting that the rotating shaft 61 is coaxially arranged 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 2 66 can always be in a position meshing with the bevel gear 64. This design enables the motor 65 to smoothly drive the eccentric wheel 68 in the horizontal state or the vertical state to rotate; The present invention also discloses a method for using the quartz sand automatic screening device, comprising the following steps: Step 1: The staff pours quartz sand and starts the motor 1 65. The motor 1 65 drives the bevel gear 1 64 and the bevel gear 2 66 to rotate, causing the vibration frame 2 to vibrate. The vertical rotation of the eccentric wheel 68 causes the vibration screen 3 to vibrate in the vertical direction, ensuring that the quartz sand is evenly distributed on the screen. Step 2: Start the motor 3 91 to drive the rotating rod 92 and the 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 to improve the screening effect. Step 3: After the screening work is completed, turn off the motor 1 65 to stop the vibration, start the motor 2 71 to rotate the eccentric wheel 68 to the horizontal direction, and start the motor 1 65 again. At this time, the vibrating screen 3 vibrates in the horizontal direction, which is convenient for discharging the screened quartz sand; Step 4: The staff pulls the pull rod 133 upwards, so that the sealing slide plate 132 draws 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 the motor 3 91, the transmission member drives the shaft 3 102 to rotate, and drives the dust collection device to work. Through the action of the air bag 111 and the 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.

[0023] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0024] The present 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 the present invention should be included in the scope of protection of the present invention.

Claims

1. A quartz sand automatic screening equipment, characterized in that: include: Fixed frame (1); A vibration frame (2), wherein the vibration frame (2) is arranged on the fixed frame (1) via a plurality of elastic members; Two vibrating screens (3), the two vibrating screens (3) are stacked on the vibrating frame (2) in sequence, each vibrating screen (3) comprises 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 peripheral surface of the outer frame, and the discharge hopper and the discharge port are arranged opposite to each other, and a through opening is opened in the middle of the screen at the upper end; A top cover (4), the top cover (4) being placed on the uppermost vibrating screen (3); A mounting frame (5), the mounting frame (5) being fixed on the top cover (4), and the mounting frame (5) being a U-shaped structure; A vibration source structure, the vibration source structure being arranged on a vibration frame (2), the vibration source structure comprising a vibration component, an adjustment component and a positioning component; A scraper assembly, wherein the scraper assembly is arranged on a mounting frame (5).

2. The automatic quartz sand screening equipment according to claim 1, characterized in that: The vibration assembly comprises: A rotating shaft (61) rotatably mounted on the vibration frame (2); A fixed collar (62), wherein the fixed collar (62) is fixedly sleeved on an end of the 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); Bevel gear one (64); Motor 1 (65), wherein the motor 1 (65) is mounted on the vibration frame (2), and an output shaft of the motor 1 (65) is fixedly connected to the bevel gear 1 (64); Bevel gear 2 (66), wherein the bevel gear 2 (66) is fixedly sleeved on one end of the rotating shaft 2 (63) away from the fixed sleeve ring (62), and the bevel gear 2 (66) and the bevel gear 1 (64) are meshed with each other; A connecting rod (67), wherein the connecting rod (67) is fixed to an end of the second rotating shaft (63) away from the fixing collar (62); An eccentric wheel (68) is fixed to an end of the connecting rod (67) away from the second rotating shaft (63), and the eccentric wheel (68) is eccentrically arranged between the connecting rod (67).

3. The automatic quartz sand screening equipment according to claim 2, characterized in that: The adjustment component comprises: Motor 2 (71), wherein the motor 2 (71) is mounted on the vibration frame (2); Gear 1 (72), wherein the gear 1 (72) is fixedly sleeved on the output shaft of the motor 2 (71); Gear 2 (73), wherein the gear 2 (73) is fixedly sleeved on the rotating shaft 1 (61), and the gear 2 (73) and the gear 1 (72) are meshed with each other.

4. The automatic quartz sand screening equipment according to claim 3, characterized in that: The positioning component comprises: A rotating sleeve (81), wherein the rotating sleeve (81) is rotatably sleeved on the connecting rod (67); An arc-shaped plate (82), wherein the arc-shaped plate (82) is fixed on the rotating collar (81); Two positioning openings (83), the two positioning openings (83) being respectively provided at two ends of the arc-shaped plate (82); A cylinder (84), wherein the cylinder (84) is mounted on the vibration frame (2); A positioning rod (85), wherein the positioning rod (85) is fixed to the telescopic end of the cylinder (84); A positioning groove (86), wherein the positioning groove (86) is formed on the vibration frame (2).

5. The automatic quartz sand screening equipment according to claim 1, characterized in that: The scraper assembly comprises: Motor three (91), the motor three (91) being mounted on a mounting frame (5); A rotating rod (92), one end of which is fixedly connected to the output shaft of the motor three (91), and the other end of which passes through the hole on the upper screen; Two scrapers (93), both of which are fixedly sleeved on the rotating rod (92), and the two scrapers (93) are respectively placed above the two screens.

6. The automatic quartz sand screening equipment according to claim 1, characterized in that: The mounting frame (5) is provided with a driving assembly, and the mounting frame (5) and a plurality of vibrating screens (3) are provided with a dust collecting assembly together, and the driving assembly comprises: A mounting cylinder (101), wherein the mounting cylinder (101) is fixed on the mounting frame (5); A rotating shaft three (102), the rotating shaft three (102) passing through the bottom surface of the mounting tube (101), the rotating shaft three (102) and the mounting tube (101) being rotationally connected, and the rotating shaft three (102) and the output shaft of the motor three (91) being transmission connected via a transmission member; A rotating block (103), wherein the rotating block (103) is fixed to one end of the rotating shaft (102) located inside the mounting cylinder (101); A moving block (104), the moving block (104) being slidably disposed inside the mounting cylinder (101); A limit block (105), wherein the limit block (105) is fixed on the moving block (104); A limiting groove (106), wherein the limiting groove (106) is provided on the inner surface of the mounting tube (101), and the limiting block (105) is slidably disposed in the limiting groove (106).

7. The automatic quartz sand screening equipment according to claim 6, characterized in that: The dust collection component comprises: An airbag (111), one end of the airbag (111) being connected to the inner top surface of the mounting tube (101), and the other end of the airbag (111) being connected to the moving block (104); Two tracheas (112), one end of each of the two tracheas (112) being connected to the airbag (111); Two one-way valves (113), the two one-way valves (113) being respectively installed on the two air pipes (112); Two annular air pipes (114), the two annular air pipes (114) being fixed to the inner circles of the two outer frames respectively, and the two annular air pipes (114) being connected via a pipeline, and the other end of one of the air pipes (112) being connected to one of the annular air pipes (114); A plurality of dust suction ports (115), wherein the plurality of dust suction ports (115) are respectively opened on two annular air pipes (114); A dust collecting box (116), wherein the dust collecting box (116) is mounted on the mounting frame (5), and the dust collecting box (116) is connected to the other end of another air pipe (112).

8. The automatic 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 frame (5) is provided with an adjusting component, wherein the shielding component comprises: A sealing cylinder (121), wherein the sealing cylinder (121) is fixed on the inner ring of the outer frame, and the sealing cylinder (121) is an arc-shaped structure; A sliding plug (122), the sliding plug (122) being sealingly slidably connected to the inner surface of the sealing cylinder (121), the sliding plug (122) and the inner surface of the sealing cylinder (121) being connected via a spring; A push rod (123), one end of the push rod (123) being fixedly connected to the sliding plug (122), and the other end of the push rod (123) extending to the outside of the sealing cylinder (121); A baffle (124) is fixed to one end of the push rod (123) located outside the sealing cylinder (121); the baffle (124) is in an arc-shaped structure, and the side surface of the baffle (124) is in contact with the inner circle of the outer frame; the baffle (124) is arranged opposite to the discharge port.

9. The automatic quartz sand screening equipment according to claim 8, characterized in that: The adjustment component comprises: A sealing box (131), wherein the sealing box (131) is fixed on the mounting frame (5); A sealing slide plate (132), the sealing slide plate (132) being sealingly slidably connected to the inner surface of the sealing box (131); A pull rod (133), one end of the pull rod (133) being fixedly connected to the sealing slide plate (132), and the other end of the pull rod (133) extending to the outside of the sealing box (131); Oil, the oil being accumulated between the sealing box (131) and the sealing slide plate (132); Two connecting tubes (134), one end of each of the connecting tubes (134) is connected to the sealing box (131), and the other end of each of the connecting tubes (134) is connected to the two sealing cylinders (121) respectively.

10. A method for using an automatic quartz sand screening device, based on the automatic quartz sand screening device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: A worker pours quartz sand and starts motor 1 (65). Motor 1 (65) drives bevel gear 1 (64) and bevel gear 2 (66) to rotate, causing the vibration frame (2) to vibrate. The vertical rotation of the eccentric wheel (68) causes the vibration screen (3) to vibrate in the vertical direction, ensuring that the quartz sand is evenly distributed on the screen. Step 2: start the motor 3 (91) to drive the rotating rod (92) and the scraper (93) to rotate, and the scraper (93) evenly distributes the quartz sand on the vibrating screen (3) to ensure that the quartz sand is fully in contact with the screen, thereby improving the screening effect; Step 3: After the screening work is completed, turn off the motor 1 (65) to stop the vibration, start the motor 2 (71) to rotate the eccentric wheel (68) to the horizontal direction, and start the motor 1 (65) again. At this time, the vibrating screen (3) vibrates in the horizontal direction, which is convenient for discharging the screened quartz sand; Step 4: The staff member pulls the pull rod (133) upwards, so that the sealing slide plate (132) draws out the oil in the sealing cylinder (121). After the oil is drawn out, the push rod (123) drives the baffle plate (124) to open the discharge port, and the quartz sand is automatically discharged through the discharge hopper; Step 5: start the motor three (91), the transmission member drives the rotating shaft three (102) to rotate, and drives the dust collection device to work. Through the action of the air bag (111) and the dust collection port (115), the dust generated during the screening process is sucked into the dust collection box (116), so as to prevent the dust from flying around and keep the working environment clean.

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