Quartz stone screening equipment for quartz product production and processing

Abstract

The invention relates to the technical field of quartz stone screening, and discloses quartz stone screening equipment for quartz product production and processing, the quartz stone screening equipment comprises a first screening box, the front surface of the first screening box is rotatably connected with a first box door through a hinge, and the bottom of the first screening box is fixedly connected with a second screening box; a sliding frame is slidably connected to the inner wall of the second screening box, a third screening box is fixedly connected to the outer wall of the side, away from the first screening box, of the second screening box, and when quartz stone is screened, screening operation is conducted through the first screening box, the second screening box and the third screening box; through vertical distribution of the first screening box, the second screening box and the third screening box, backflow of screened quartzite is avoided, the first screening box, the second screening box and the third screening box conduct discharging through a first box door, a second box door and a discharging bin correspondingly, and therefore blocking during quartzite discharging is avoided, and the screening efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of quartz stone screening technology, specifically to a quartz stone screening device for the production and processing of quartz products. Background Technology

[0002] Quartz stone, as we commonly refer to it, is a new type of artificial stone made of over 90% quartz crystals, along with resin and other trace elements. It is produced by pressing large-format slabs using specialized machinery under specific physical and chemical conditions; its main material is quartz.

[0003] Quartz is a mineral that easily liquefies when heated or subjected to pressure. It is also a fairly common rock-forming mineral, found in all three major rock types. Because it crystallizes last in igneous rocks, it usually lacks complete crystal faces and mostly fills the spaces between other pre-crystallized rock-forming minerals.

[0004] Patent application CN202311712632.6 discloses a quartz stone screening device for the production and processing of quartz products, belonging to the field of quartz stone screening. It includes a base, a square frame, an angled plate, and a quartz stone interception and sorting mechanism. The upper surface of the base is equipped with a servo lifting and material transfer mechanism that corresponds to the quartz stone interception and sorting mechanism.

[0005] In summary, when screening quartz, the device requires the entire square frame to be flipped over. This may cause some of the screened quartz to flow back through the material guide tube, resulting in smaller quartz being discharged from the feeding mechanism of the larger sorting bin. Consequently, the screening of quartz is not rigorous. Furthermore, after the entire square frame is flipped over, quartz accumulates on the inner wall of the feeding mechanism, which can clog the nut sleeve, reduce the feeding speed, and prevent the complete discharge of quartz, thus reducing screening efficiency.

[0006] Therefore, we propose a quartz stone screening device for the production and processing of quartz products. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a quartz screening device for the production and processing of quartz products, thereby solving the problems mentioned in the background section.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a quartz stone screening device for quartz product manufacturing and processing, comprising a first screening box, a first door rotatably connected to the front of the first screening box via a hinge, a first through hole formed on the outer wall of the first screening box away from the first door, a second screening box fixedly connected to the bottom of the first screening box, a sliding frame slidably connected to the inner wall of the second screening box, a third screening box fixedly connected to the outer wall of the second screening box away from the first screening box, a first connecting frame fixedly connected to the outer wall of the third screening box, a support leg fixedly connected to the outer wall of the first connecting frame, and a discharge bin fixedly connected to the bottom outer wall of the first connecting frame, further comprising:

[0009] The screening mechanism includes a first motor fixedly connected to a first screening box, the output end of the first motor passing through the first screening box and fixedly connected to a fixed block, a rotating block fixedly connected to the end of the fixed block away from the first motor, a roller provided on the inner wall of the rotating block, and impact rods fixedly connected to the inner wall of the roller, the number of impact rods being three, the three impact rods being symmetrically arranged about the central axis of the roller.

[0010] According to the above technical solution, the inner wall of the rotating block is fixedly connected with a baffle, and the number of the baffles is three. The three baffles are symmetrically arranged with the central axis of the rotating block as the center. A second through hole is opened on the top of the baffle. A fixed shaft is fixedly connected to the outer wall of the baffle near the roller, and the number of the fixed shafts is four. The four fixed shafts are symmetrically arranged with the central axis of the roller as the center. The second through hole facilitates the ejection of the quartz stone stuck between the baffle and the roller, thereby preventing the quartz stone from getting stuck between the roller and the baffle and being unable to fall.

[0011] According to the above technical solution, the outer wall of the roller is fixedly connected with a first protrusion, and the number of the first protrusions is six. The six first protrusions are symmetrically arranged around the central axis of the roller. The outer wall of the roller is provided with a third through hole. The inner wall of the first protrusion away from the roller is slidably connected to the fixed shaft. The top of the first protrusion is fixedly connected with a first spring. The end of the first spring away from the first protrusion is fixedly connected to the baffle. The first spring plays a role in damping the rotating roller. And by sliding between the first protrusion and the fixed shaft, the distance between the outer wall of the roller and the baffle can be changed, thereby reducing the possibility of the quartz stone getting stuck.

[0012] According to the above technical solution, a fourth through hole is provided on the top outer wall of the sliding frame, a second motor is fixedly connected to the top inner wall of the sliding frame, and a connecting block is fixedly connected to the outer wall of the end of the sliding frame away from the second motor. There are two connecting blocks, and the two connecting blocks are arranged with the central axis of the sliding frame as the center. The fourth through hole is used for secondary screening of quartz stones of different sizes, thereby increasing the accuracy of screening.

[0013] According to the above technical solution, the output end of the second motor is fixedly connected to a second connecting frame, and the inner wall of the second connecting frame is rotatably connected to a rotating roller via a rotating shaft. The outer surface of the rotating roller is fixedly connected to a second protrusion. There are three rotating rollers, and the three rotating rollers are symmetrically arranged with the central axis of the second connecting frame as the center. The second protrusion is used to push out the quartz stone stuck in the inner wall of the fourth through hole, thereby avoiding the blockage of the fourth through hole.

[0014] According to the above technical solution, a hydraulic rod is fixedly connected to the outer wall of the third screening box. The hydraulic rod passes through the third screen and is fixedly connected to a limiting block. The outer surface of the hydraulic rod is movably sleeved with the connecting block. A second spring is fixedly connected to the bottom of the connecting block. A sliding block is fixedly connected to the end of the second spring away from the connecting block. The inner wall of the sliding block is slidably connected to the hydraulic rod. The limiting block can be removed from the bottom of the hydraulic rod, thereby facilitating the replacement of the entire sliding frame.

[0015] According to the above technical solution, a screen is fixedly connected to the inner wall of the third screening box. The inner wall of the screen is slidably connected to the sliding frame. The screen and the third screening box have a certain angle, which facilitates the sliding of the top quartz stone into the sliding frame. The mesh size of the screen is the same as that of the fourth through hole. The screen is used to screen the top quartz stone, thereby improving the accuracy of quartz stone screening.

[0016] According to the above technical solution, a first support frame is fixedly connected to the top outer wall of the second screening box. There are two first support frames, which are symmetrically arranged around the central axis of the first screening box. The end of the first support frame away from the second screening box is fixedly connected to the first screening box. The top of the third screening box is rotatably connected to a second box door via a hinge. The top of the third screening box is fixedly connected to a second support frame. The end of the second support frame away from the third screening box is fixedly connected to the outer wall of the second screening box. The first support frame supports the outer wall of the first screening box, thereby preventing the first screening box from shaking during the process of swinging the quartz stone.

[0017] Compared with the prior art, the present invention provides a quartz stone screening device for the production and processing of quartz products, which has the following beneficial effects:

[0018] 1. This invention relates to a quartz stone screening device for quartz product manufacturing and processing. During the screening process, quartz stone is screened using a first screening box, a second screening box, and a third screening box. The vertical distribution of the first, second, and third screening boxes prevents the backflow of screened quartz stone. The first, second, and third screening boxes discharge material through a first door, a second door, and a discharge hopper, respectively, thus preventing blockage during quartz stone discharge and improving screening efficiency.

[0019] 2. The present invention uses a screening mechanism to rotate a rotating block via a first motor, which in turn drives a drum to rotate. The drum's outer wall is slidably connected to a fixed shaft, thereby changing the distance between the drum and the baffle by varying the position of the quartz stones on the inner wall of the drum, thus reducing the possibility of quartz stone blockage.

[0020] 3. In this invention, when the sliding frame slides downward under the action of the hydraulic rod, the quartz stones that have not passed through the fourth through hole slide down from the top of the sliding frame to the top surface of the screen through the conical top of the sliding frame. By means of the tilt angle of the screen, the quartz stones that roll down to the top can be screened a second time, thereby preventing some smaller quartz stones from falling down in time.

[0021] 4. The present invention uses a second motor and a rotating roller. The second motor causes the rotating roller to rotate, thereby cleaning the fourth through hole at the top of the sliding frame through the second protrusion on the outer surface of the rotating roller. This prevents some quartz from clogging the inner wall of the fourth through hole, thus avoiding blockage of the fourth through hole and a reduction in screening speed. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall front structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall front cross-sectional structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the second and third screening boxes of the present invention;

[0025] Figure 4 For the present invention Figure 2 A magnified structural diagram of A in the middle;

[0026] Figure 5 This is a schematic diagram of the screening mechanism structure of the present invention;

[0027] Figure 6 This is an exploded view of the screening mechanism of the present invention;

[0028] Figure 7 This is a schematic diagram of the sliding frame structure of the present invention.

[0029] In the diagram: 1. First screening box; 101. First box door; 102. First through hole; 103. First support frame; 104. Second screening box; 105. Third screening box; 1051. Screen; 106. First connecting frame; 1061. Support leg; 107. Second support frame; 108. Second box door; 109. Discharge hopper; 2. Screening mechanism; 201. First motor; 2011. Fixed block; 202. Rotating block; 2021. Baffle; 20 22. Fixed shaft; 2023. Second through hole; 203. Roller; 2031. Third through hole; 2032. Impact rod; 2033. First protrusion; 2034. First spring; 3. Sliding frame; 301. Fourth through hole; 302. Second motor; 303. Second connecting frame; 304. Rotating roller; 305. Second protrusion; 306. Connecting block; 307. Hydraulic rod; 308. Limiting block; 309. Second spring; 3010. Sliding block. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] Example 1: See Figures 1-4This invention provides a technical solution: a quartz stone screening device for quartz product manufacturing and processing, comprising a first screening box 1, a first door 101 rotatably connected to the front of the first screening box 1 via a hinge, a first through hole 102 formed on the outer wall of the first screening box 1 away from the first door 101, the first through hole 102 facilitating the entry of a screwdriver to separate the fixed block 2011 and the rotating block 202, thereby allowing the rotating block 202 to be replaced entirely according to different sizes of quartz stones, and a second screening box 1 fixedly connected to the bottom of the first screening box 1. 04. A sliding frame 3 is slidably connected to the inner wall of the second screening box 104. A third screening box 105 is fixedly connected to the outer wall of the second screening box 104 on the side away from the first screening box 1. A first connecting frame 106 is fixedly connected to the outer wall of the third screening box 105. Support legs 1061 are fixedly connected to the outer wall of the first connecting frame 106. There are three support legs 1061, which are symmetrically arranged around the central axis of the first connecting frame 106. A discharge hopper 109 is fixedly connected to the bottom outer wall of the first connecting frame 106. The system also includes:

[0034] The screening mechanism 2 includes a first motor 201 fixedly connected to the first screening box 1. The output end of the first motor 201 passes through the first screening box 1 and is fixedly connected to a fixing block 2011. A rotating block 202 is fixedly connected to the end of the fixing block 2011 away from the first motor 201. A roller 203 is provided on the inner wall of the rotating block 202. An impact rod 2032 is fixedly connected to the inner wall of the roller 203. The impact rod 2032 is used to break some of the quartz stones with cracks, so that the quartz stones can fall into a suitable screening box after screening, thereby improving the accuracy of screening. There are three impact rods 2032, and the three impact rods 2032 are symmetrically arranged with the central axis of the roller 203 as the center.

[0035] A screen 1051 is fixedly connected to the inner wall of the third screening box 105. The inner wall of the screen 1051 is slidably connected to the sliding frame 3. The screen 1051 and the third screening box 105 have a certain angle. The screen 1051 is used to screen the quartz stones at the top, thereby improving the accuracy of quartz stone screening and facilitating the sliding of quartz stones at the top of the sliding frame 3. The mesh size of the screen 1051 is the same as that of the fourth through hole 301. In this invention, when the sliding frame 3 slides downward under the action of the hydraulic rod 307, the quartz stones that have not passed through the fourth through hole 301 slide from the top of the sliding frame 3 to the top surface of the screen 1051 through the conical top of the sliding frame 3. By means of the inclination angle of the screen 1051, the quartz stones that have rolled to the top can be screened a second time, thereby preventing some smaller quartz stones from falling down in time.

[0036] Two first support frames 103 are fixedly connected to the top outer wall of the second screening box 104. These two first support frames 103 are symmetrically arranged about the central axis of the first screening box 1. The end of each first support frame 103 away from the second screening box 104 is fixedly connected to the first screening box 1. The first support frames 103 support the outer wall of the first screening box 1, thus preventing the first screening box 1 from shaking during the swinging of the quartz stones. A second door 108 is rotatably connected to the top of the third screening box 105 via a hinge. A second support frame 107 is fixedly connected to the top of the third screening box 105. The end of the second support frame 107 away from the third screening box 105 is fixedly connected to the second door 108. The outer wall of the box 104 is fixedly connected, and the second support frame 107 supports the second screening box 104. This invention provides a quartz stone screening device for quartz product manufacturing and processing. When screening quartz stone, the screening operation is carried out through the first screening box 1, the second screening box 104, and the third screening box 105. The vertical distribution of the first screening box 1, the second screening box 104, and the third screening box 105 avoids the backflow of the screened quartz stone. The first screening box 1, the second screening box 104, and the third screening box 105 discharge through the first box door 101, the second box door 108, and the discharge bin 109, respectively, thereby avoiding blockage when the quartz stone is discharged and improving the screening efficiency.

[0037] The working principle of this embodiment is as follows: After all the quartz stones to be screened are placed inside the drum 203, the first box door 101 is closed. The first motor 201 causes the rotating block 202 to rotate, which in turn drives the drum 203 to roll, thereby improving the efficiency of the drum 203 in screening quartz stones. As the drum 203 slides along the inner wall of the fixed shaft 2022, it shakes during the rolling process, which in turn throws out the quartz stones stuck in the third through hole 2031 of the drum 203. The quartz stones falling through the third through hole 2031 of the drum 203 land on the top of the sliding frame 3 for secondary screening. The impact rod 2032, which is fixedly connected to the inner wall of the drum 203, contacts the quartz stones, thereby contacting the quartz stones that are about to break or have cracks. After the quartz stones fall onto the impact rod 2032, they impact the quartz stones, breaking the quartz stones that are about to break. As the quartz stones fall, the screening accuracy of the quartz stones is improved.

[0038] Example 2: Please refer to Figures 5-6Based on Embodiment 1, the present invention provides a technical solution: a baffle 2021 is fixedly connected to the inner wall of the rotating block 202. There are three baffles 2021, which are symmetrically arranged around the central axis of the rotating block 202. A second through hole 2023 is provided at the top of the baffle 2021. The second through hole 2023 facilitates the ejection of the quartz stone stuck between the baffle 2021 and the roller 203, thereby preventing the quartz stone from getting stuck between the roller 203 and the baffle 2021 and being unable to fall. A fixed shaft 2022 is fixedly connected to the outer wall of the side of the baffle 2021 near the roller 203. There are four fixed shafts 2022, which are symmetrically arranged around the central axis of the roller 203.

[0039] The outer wall of the roller 203 is fixedly connected with six first protrusions 2033, which are symmetrically arranged around the central axis of the roller 203. A third through hole 2031 is provided on the outer wall of the roller 203. The inner wall of the first protrusion 2033 away from the roller 203 is slidably connected to the fixed shaft 2022. A first spring 2034 is fixedly connected to the top of the first protrusion 2033. The first spring 2034 dampens the rotating roller 203, and the sliding between the first protrusion 2033 and the fixed shaft 2022 further reduces vibration. The distance between the outer wall of the variable roller 203 and the baffle 2021 is adjusted to reduce the possibility of quartz stone getting stuck. The end of the first spring 2034 away from the first protrusion 2033 is fixedly connected to the baffle 2021. The present invention uses the screening mechanism 2 to make the rotating block 202 rotate through the first motor 201, thereby driving the roller 203 to rotate. Through the sliding connection between the outer wall of the roller 203 and the fixed shaft 2022, the distance between the roller 203 and the baffle 2021 is changed by the different positions of the quartz stone on the inner wall of the roller 203, thereby reducing the possibility of quartz stone clogging.

[0040] The working principle of this embodiment is as follows: After the rotating block 202 drives the roller 203 to roll, the roller 203 filters the quartz stone through the third through hole 2031. The first protrusion 2033 fixedly connected to the outer wall of the roller 203 is slidably connected to the fixed shaft 2022, so that the distance between the roller 203 and the baffle 2021 changes according to the position of the quartz stone inside the roller 203, thereby preventing the quartz stone from getting stuck between the roller 203 and the baffle 2021. The second through hole 2023 opened on the inner wall of the baffle 2021 facilitates the quartz stone thrown out from the third through hole 2031 to fall down, reducing the impact of the baffle 2021 on the quartz stone filtering.

[0041] Example 3: For the technical features that differ from Example 1, please refer to [link / reference]. Figure 7The present invention provides a technical solution: a fourth through hole 301 is provided on the top outer wall of the sliding frame 3. The fourth through hole 301 is used to perform secondary screening of quartz stones of different sizes, thereby increasing the accuracy of screening. A second motor 302 is fixedly connected to the top inner wall of the sliding frame 3. A connecting block 306 is fixedly connected to the outer wall of the end of the sliding frame 3 away from the second motor 302. There are two connecting blocks 306, and the two connecting blocks 306 are arranged with the central axis of the sliding frame 3 as the center.

[0042] The output end of the second motor 302 is fixedly connected to the second connecting frame 303. The inner wall of the second connecting frame 303 is rotatably connected to the rotating roller 304 via a rotating shaft. The outer surface of the rotating roller 304 is fixedly connected to the second protrusion 305. The second protrusion 305 is used to push out the quartz stone stuck in the inner wall of the fourth through hole 301, thereby avoiding the blockage of the fourth through hole 301. There are three rotating rollers 304, and the three rotating rollers 304 are symmetrically arranged with the central axis of the second connecting frame 303 as the center.

[0043] A hydraulic rod 307 is fixedly connected to the outer wall of the third screening box 105. The hydraulic rod 307 passes through the third screen 1051 and is fixedly connected to a limiting block 308. The limiting block 308 can be removed from the bottom of the hydraulic rod 307, thereby facilitating the replacement of the entire sliding frame 3. The outer surface of the hydraulic rod 307 is movably sleeved with the connecting block 306. A second spring 309 is fixedly connected to the bottom of the connecting block 306. The second spring 309 is used to cause the entire sliding frame 3 to vibrate. The second spring 309 is located away from the connecting block. One end of 306 is fixedly connected to a sliding block 3010. The inner wall of the sliding block 3010 is slidably connected to the hydraulic rod 307. In this invention, the second motor 302 and the rotating roller 304 are used to rotate the rotating roller 304. The second motor 302 causes the rotating roller 304 to rotate, thereby cleaning the fourth through hole 301 at the top of the sliding frame 3 through the second protrusion 305 on the outer surface of the rotating roller 304. This prevents some quartz from clogging the inner wall of the fourth through hole 301, which would cause the fourth through hole 301 to become blocked and reduce the screening speed.

[0044] The working principle of this embodiment is as follows: After the quartz stone after initial screening falls to the top of the sliding frame 3, it undergoes secondary screening through the fourth through hole 301 at the top of the sliding frame 3. When the sliding frame 3 passes through the second spring 309, the entire sliding frame 3 vibrates, thereby improving the screening efficiency at the top of the sliding frame 3. The second motor 302 causes the second connecting frame 303 to rotate, thereby cleaning the inner wall of the top of the sliding frame 3 through the rotating roller 304 that is rolled on the inner wall of the second connecting frame 303. The second protrusion 305 that is fixedly connected to the outer surface of the rotating roller 304 cleans the fourth through hole 301, thereby reducing the quartz stone from clogging the fourth through hole 301, which in turn reduces the screening rate of the sliding frame 3.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quartz screening device for quartz product manufacturing and processing, comprising a first screening box (1), a first door (101) rotatably connected to the front of the first screening box (1) via a hinge, a first through hole (102) being provided on the outer wall of the first screening box (1) away from the first door (101), a second screening box (104) fixedly connected to the bottom of the first screening box (1), a sliding frame (3) slidably connected to the inner wall of the second screening box (104), a third screening box (105) fixedly connected to the outer wall of the second screening box (104) away from the first screening box (1), a first connecting frame (106) fixedly connected to the outer wall of the third screening box (105), a support foot (1061) fixedly connected to the outer wall of the first connecting frame (106), and a discharge hopper (109) fixedly connected to the bottom outer wall of the first connecting frame (106), characterized in that: The screening mechanism (2) includes a first motor (201) fixedly connected to the first screening box (1). The output end of the first motor (201) passes through the first screening box (1) and is fixedly connected to a fixing block (2011). A rotating block (202) is fixedly connected to one end of the fixing block (2011) away from the first motor (201). A roller (203) is provided on the inner wall of the rotating block (202). An impact rod (2032) is fixedly connected to the inner wall of the roller (203). There are three impact rods (2032), and the three impact rods (2032) are symmetrically arranged with the central axis of the roller (203) as the center.

2. The quartz stone screening equipment for quartz product manufacturing and processing according to claim 1, characterized in that: The inner wall of the rotating block (202) is fixedly connected with a baffle (2021). There are three baffles (2021). The three baffles (2021) are symmetrically arranged with the central axis of the rotating block (202) as the center. The top of the baffle (2021) is provided with a second through hole (2023). The outer wall of the baffle (2021) near the roller (203) is fixedly connected with a fixed shaft (2022). There are four fixed shafts (2022). The four fixed shafts (2022) are symmetrically arranged with the central axis of the roller (203) as the center.

3. The quartz stone screening equipment for quartz product manufacturing and processing according to claim 1, characterized in that: The outer wall of the roller (203) is fixedly connected with a first protrusion (2033). There are six first protrusions (2033). The six first protrusions (2033) are symmetrically arranged with the central axis of the roller (203) as the center. The outer wall of the roller (203) is provided with a third through hole (2031). The inner wall of the first protrusion (2033) away from the roller (203) is slidably connected to the fixed shaft (2022). The top of the first protrusion (2033) is fixedly connected with a first spring (2034). The end of the first spring (2034) away from the first protrusion (2033) is fixedly connected to the baffle (2021).

4. The quartz stone screening equipment for quartz product manufacturing and processing according to claim 1, characterized in that: The top outer wall of the sliding frame (3) is provided with a fourth through hole (301). The top inner wall of the sliding frame (3) is fixedly connected to a second motor (302). The outer wall of the end of the sliding frame (3) away from the second motor (302) is fixedly connected to a connecting block (306). There are two connecting blocks (306), and the two connecting blocks (306) are set with the central axis of the sliding frame (3) as the center.

5. A quartz stone screening device for quartz product manufacturing and processing according to claim 4, characterized in that: The output end of the second motor (302) is fixedly connected to a second connecting frame (303). The inner wall of the second connecting frame (303) is rotatably connected to a rotating roller (304) via a rotating shaft. The outer surface of the rotating roller (304) is fixedly connected to a second protrusion (305). There are three rotating rollers (304), and the three rotating rollers (304) are symmetrically arranged with the central axis of the second connecting frame (303) as the center.

6. The quartz stone screening equipment for quartz product manufacturing and processing according to claim 4, characterized in that: A hydraulic rod (307) is fixedly connected to the outer wall of the third screening box (105). The hydraulic rod (307) passes through the third screen (1051) and is fixedly connected to a limiting block (308). The outer surface of the hydraulic rod (307) is movably sleeved with a connecting block (306). A second spring (309) is fixedly connected to the bottom of the connecting block (306). A sliding block (3010) is fixedly connected to the end of the second spring (309) away from the connecting block (306). The inner wall of the sliding block (3010) is slidably connected to the hydraulic rod (307).

7. The quartz stone screening equipment for quartz product manufacturing and processing according to claim 1, characterized in that: The inner wall of the third screening box (105) is fixedly connected with a screen (1051). The inner wall of the screen (1051) is slidably connected to the sliding frame (3). The screen (1051) and the third screening box (105) have a certain angle, so that the quartz stone at the top of the sliding frame (3) can slide in easily. The mesh count of the screen (1051) is the same as that of the fourth through hole (301).

8. The quartz stone screening equipment for quartz product manufacturing and processing according to claim 1, characterized in that: The top outer wall of the second screening box (104) is fixedly connected to a first support frame (103). There are two first support frames (103). The two first support frames (103) are symmetrically arranged with the central axis of the first screening box (1) as the center. The end of the first support frame (103) away from the second screening box (104) is fixedly connected to the first screening box (1). The top of the third screening box (105) is rotatably connected to a second box door (108) through a hinge. The top of the third screening box (105) is fixedly connected to a second support frame (107). The end of the second support frame (107) away from the third screening box (105) is fixedly connected to the outer wall of the second screening box (104).

Images