Full-body marble tile screening and sorting device

Abstract

The utility model relates to the technical field of tile production equipment, in particular to a full-body marble tile screening and sorting device which comprises a first conveying mechanism and a second conveying mechanism erected above the first conveying mechanism. When passing of the defective products on the first conveying mechanism is monitored, the two ends of the third conveying mechanism can be connected with the first conveying mechanism and the second conveying mechanism correspondingly through driving of the lifting mechanism, so that the defective products on the first conveying mechanism can enter the second conveying mechanism, and therefore the automatic screening and sorting functions are achieved. The buffering mechanism is arranged on the second conveying mechanism and provided with a buffering roller. The buffer roller is located on a motion path of defective products in a normal state; and the buffer roller can be stored in the second conveying mechanism in a pressure-bearing state. When defective products enter the second conveying mechanism, collision caused by inertia can be avoided through the buffering mechanism, and the situation that normal production procedures are affected due to secondary damage of the defective products is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to ceramic tile production equipment technical field, specifically, relate to a whole body marble ceramic tile screening and sorting device. BACKGROUND

[0002] Whole body marble ceramic tile is a new type of ceramic tile formed by high temperature and high pressure technology, and the inner and outer color and texture of the whole body marble ceramic tile are consistent, and the visual continuity is good; it has the advantages of high strength, wear resistance, easy cleaning, low water absorption and environmental protection, and is suitable for various indoor places, especially in humid areas, and shows excellent practical performance and environmental protection characteristics. It has been widely used in the field of building decoration.

[0003] After the whole body marble ceramic tile is pressed and formed, a ceramic tile surface detection device is usually arranged on the conveying belt behind the pressing machine to detect the surface quality of the whole body marble ceramic tile. When a whole body marble ceramic tile with surface defects is screened, the defective product needs to be removed. Since the whole body marble ceramic tile is heavy and smooth, the weight of an 800mm*800mm whole body marble ceramic tile exceeds 10kg. Therefore, the traditional manual removal of defective products not only has low automation degree, but also has hidden dangers. Therefore, it is necessary to provide a screening and sorting device with high automation degree and good safety performance to remove the defective products on the conveying belt. SUMMARY

[0004] The utility model aims at solving one of the technical problems in the prior art. Therefore, the utility model provides a whole body marble ceramic tile screening and sorting device, which aims at providing a screening and sorting device with high automation degree and good safety performance.

[0005] The whole body marble ceramic tile screening and sorting device according to the utility model embodiment comprises:

[0006] A first conveying mechanism;

[0007] A second conveying mechanism is arranged above the first conveying mechanism;

[0008] A third conveying mechanism is rotatably connected to one end of the first conveying mechanism, and the other end of the third conveying mechanism is connected to a lifting mechanism. Under the drive of the lifting mechanism, the other end of the third conveying mechanism can enter the conveying path of the second conveying mechanism;

[0009] A buffer mechanism is arranged on the second conveying mechanism, and the buffer mechanism is provided with a buffer roller. The buffer roller is located on the movement path of the third conveying mechanism in the normal state. The buffer roller can be accommodated in the second conveying mechanism in the pressure state.

[0010] According to some embodiments of the present application, the first conveying mechanism comprises a first rack, a first conveying belt, a second conveying belt and a first driving mechanism, the first conveying belt and the second conveying belt are respectively arranged on the first rack along two sides of the conveying direction of the first conveying mechanism, and the first driving mechanism can simultaneously control the rotation of the first conveying belt and the second conveying belt.

[0011] According to some embodiments of the present application, the first conveying belt and the second conveying belt are both synchronous belts.

[0012] According to some embodiments of the present application, the third conveying mechanism comprises a third rack, a first rotating shaft, a second rotating shaft, a third conveying belt and a fourth conveying belt, the first rotating shaft is rotationally connected with the first rack, the third rack is rotationally connected with the first rotating shaft, the third rack is fixedly connected with the first rack, one end of the lifting mechanism is rotationally connected with the third rack, the other end of the lifting mechanism is rotationally connected with the second rotating shaft, and the third conveying belt and the fourth conveying belt are respectively arranged on the third rack along two sides of the conveying direction of the third conveying mechanism.

[0013] According to some embodiments of the present application, the lifting mechanism is provided with a first hydraulic cylinder and a second hydraulic cylinder, one end of the first hydraulic cylinder and one end of the second hydraulic cylinder are respectively rotationally connected with the third rack, and the other end of the first hydraulic cylinder and the other end of the second hydraulic cylinder are respectively rotationally connected with the second rotating shaft.

[0014] According to some embodiments of the present application, anti-skid stripes are respectively arranged on the surfaces of the third conveying belt and the fourth conveying belt.

[0015] According to some embodiments of the present application, the buffer mechanism comprises a buffer rack, a swing rod, a sliding sleeve, a lifting shaft, a buffer sleeve, a buffer spring and the buffer roller, the buffer rack is connected with the second conveying mechanism, one end of the swing rod is rotationally connected with the buffer rack, the other end of the swing rod is rotationally connected with the buffer roller, the sliding sleeve is sleeved on the swing rod, one end of the lifting shaft is rotationally connected with the sliding sleeve, the other end of the lifting shaft is slidingly connected with the buffer sleeve, the buffer sleeve is fixedly connected with the buffer rack, and the buffer spring is sleeved on the buffer spring.

[0016] According to some embodiments of the present application, the buffer rack is provided with sliding blocks at two ends, the sliding blocks are slidingly connected with the second conveying mechanism and are fixed on the second conveying mechanism through fastening bolts.

[0017] According to some embodiments of the present application, the lifting shaft is provided with a baffle, and the baffle can abut against the upper end surface of the buffer sleeve.

[0018] According to some embodiments of the present application, the buffer roller is a silica gel roller.

[0019] According to the marble ceramic tile screening and sorting device, at least the following

[0020] Beneficial effects:

[0021] According to the scheme of the present application, the marble ceramic tile screening and sorting device comprises a first conveying mechanism, a second conveying mechanism, a third conveying mechanism and a buffer mechanism, wherein the second conveying mechanism is erected above the first conveying mechanism; when the defective product on the first conveying mechanism is monitored to pass, the two ends of the third conveying mechanism can be connected to the first conveying mechanism and the second conveying mechanism respectively through the driving of the lifting mechanism, so that the defective product on the first conveying mechanism can enter the second conveying mechanism, thereby realizing the functions of automatic screening and sorting. The buffer mechanism is arranged on the second conveying mechanism, and the buffer mechanism is provided with a buffer roller; the buffer roller is located on the movement path of the defective product in a normal state; the buffer roller can be accommodated in the second conveying mechanism in a pressure-bearing state. When the defective product enters the second conveying mechanism, the buffer mechanism can avoid collision due to inertia and avoid secondary damage to the defective product to affect the normal production process. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view of the present application;

[0023] Figure 2 It is a structural schematic view of the present application; Figure 1 It is a local structure enlarged schematic view of A of the present application;

[0024] Figure 3 It is a structural schematic view of the third conveying mechanism of the present application;

[0025] Figure 4 It is a structural schematic view of the buffer mechanism of the present application.

[0026] In the drawings:

[0027] 100-first conveying mechanism, 110-first rack, 120-first conveying belt, 130-second conveying belt, 140-first driving mechanism;

[0028] 200-second conveying mechanism;

[0029] 300-third conveying mechanism, 310-third rack, 320-first rotating shaft, 330-second rotating shaft, 340-third conveying belt, 350-fourth conveying belt;

[0030] 400 - lifting mechanism, 410 - first hydraulic cylinder, 420 - second hydraulic cylinder;

[0031] 500 - buffering mechanism, 510 - buffering roller, 520 - buffering frame, 521 - sliding block, 522 - fastening bolt, 530 - swing lever, 540 - sliding sleeve, 550 - lifting shaft, 551 - baffle, 560 - buffering sleeve, 570 - buffering spring. DETAILED DESCRIPTION

[0032] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0033] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by up, down and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0034] In the description of the present application, the plural refers to two or more. If there is a description of first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0035] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting and the like should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0036] Reference Figures 1 to 4The utility model discloses a kind of whole marble ceramic tile screening sorting devices, whole marble ceramic tile screening sorting device includes first conveying mechanism 100, second conveying mechanism 200, third conveying mechanism 300 and buffer mechanism 500, wherein, second conveying mechanism 200 is erected above first conveying mechanism 100;One end of third conveying mechanism 300 and first conveying mechanism 100 rotationally connected, the other end of third conveying mechanism 300 and lifting mechanism 400 are connected, under the drive of lifting mechanism 400, the other end of third conveying mechanism 300 can enter the conveying path of second conveying mechanism 200;Buffer mechanism 500 is arranged on second conveying mechanism 200, and buffer mechanism 500 is provided with buffer roller 510;Buffer roller 510 is located on the movement path of third conveying mechanism 300 in normal state;Buffer roller 510 can be received in second conveying mechanism 200 in pressure state.

[0037] Specifically, in the embodiment, the first conveying mechanism 100 is the main conveying mechanism, and the first conveying mechanism 100 is located on the production line and is part of the production line conveying mechanism. The second conveying mechanism 200 is erected above the first conveying mechanism 100, and the second conveying mechanism 200 is a conveying channel for products with defects. In the embodiment, the design of the double-layer conveying mechanism can save space. In the embodiment, the products mainly refer to whole marble ceramic tiles, ceramic tiles in sheet or plate shape and with smooth surfaces; the products with defects or defective products all refer to whole marble ceramic tiles with surface defects. In the normal state, the third conveying mechanism 300 is received in the first conveying mechanism 100, and the first conveying mechanism 100 and the second conveying mechanism 200 have no connection channel. When it is monitored that the product with defects on the first conveying mechanism 100 passes, specifically, the monitoring mechanism can be a laser sensor. When the laser sensor receives the signal of the preposed full inspection equipment, the lifting mechanism 400 can be controlled to act. Further, through the drive of the lifting mechanism 400, the two ends of the third conveying mechanism 300 can be connected to the first conveying mechanism 100 and the second conveying mechanism 200 respectively, to establish a screening and sorting channel, so that the product with defects on the first conveying mechanism 100 can enter the second conveying mechanism 200, thereby realizing the functions of automatic screening and sorting. The buffer mechanism 500 is arranged on the second conveying mechanism 200, and the buffer mechanism 500 is provided with the buffer roller 510. The buffer roller 510 is located on the movement path of the defective product in the normal state. The buffer roller 510 can be received in the second conveying mechanism 200 in the pressure state. When the product with defects enters the second conveying mechanism 200, the buffer mechanism 500 can avoid collision due to inertia and avoid secondary damage to the product with defects, thereby affecting the normal production process. Through the design of the mechanism, the automatic screening and sorting functions can be realized, with high automation degree and good safety performance.

[0038] In some embodiments of the utility model, first conveying mechanism 100 includes first rack 110, first conveyor belt 120, second conveyor belt 130 and first drive mechanism 140, first conveyor belt 120 and second conveyor belt 130 are respectively around first rack 110 along the both sides of the conveying direction of first conveying mechanism 100, first drive mechanism 140 can control first conveyor belt 120 and second conveyor belt 130 rotation simultaneously.In this embodiment, first rack 110 is the skeleton of first conveying mechanism 100, provides the stable support frame, ensures the accurate positioning and stable operation of other components.First conveying mechanism 100 adopts the structure of first conveyor belt 120 and second conveyor belt 130 parallelly arranged synchronous conveying, not only can stably convey the product, and first conveyor belt 120 and second conveyor belt 130 can form the receiving space between, to be used for receiving third conveying mechanism 300, first drive mechanism 140 controls first conveyor belt 120 and second conveyor belt 130 rotation simultaneously, to be used for ensuring the synchronous performance of first conveyor belt 120 and second conveyor belt 130, thereby keeping the smoothness and efficiency of the conveying process of product in first conveying mechanism 100, avoid appearing skid or deviation.

[0039] In this embodiment, first conveying mechanism 100 and second conveying mechanism 200 all adopt the same structure, the difference lies in that the vertical height of second conveying mechanism 200 is higher than first conveying mechanism 100.

[0040] In some embodiments of the utility model, first conveyor belt 120 and second conveyor belt 130 are all synchronous belts.In this embodiment, first conveyor belt 120 and second conveyor belt 130 adopt the cooperation mode of synchronous belt and synchronous wheel transmission connection, and the synchronization effect is good.Specifically, in this embodiment, the both ends of first conveying mechanism 100 are respectively provided with driving shaft, and the mutually parallel synchronous wheels are fixedly arranged on the driving shaft, and first conveyor belt 120 or second conveyor belt 130 is respectively transmissionally connected with the corresponding synchronous wheel, through the design of the mechanism, the synchronous rotation of first conveyor belt 120 and second conveyor belt 130 can be realized, thereby keeping the smoothness and efficiency of the conveying process of product in first conveying mechanism 100, avoiding appearing skid or deviation.

[0041] In some embodiments of the utility model, third conveying mechanism 300 includes third frame 310, first rotating shaft 320, second rotating shaft 330, third conveyor belt 340, fourth conveyor belt 350, first rotating shaft 320 and first frame 110 rotationally connected, third frame 310 and first rotating shaft 320 rotationally connected, third frame 310 and first frame 110 fixedly connected, one end of lifting mechanism 400 and third frame 310 rotationally connected, the other end of lifting mechanism 400 and second rotating shaft 330 rotationally connected, third conveyor belt 340 and fourth conveyor belt 350 are respectively arranged on third frame 310 along the both sides of third conveying mechanism 300 conveying direction. In this embodiment, third frame 310 and first frame 110 are fixedly connected, third frame 310 is used as the support framework of third conveying mechanism 300, first rotating shaft 320 is rotationally connected with first frame 110 and third frame 310 respectively, in this embodiment, first rotating shaft 320 can be rotationally connected with first frame 110 and third frame 310 through bearing or shaft sleeve. Third conveying mechanism 300 can adopt independent driving mechanism to control the rotation of first rotating shaft 320, or can not adopt driving mechanism, and only moves to second conveying mechanism 200 on third conveyor belt 340 and fourth conveyor belt 350 through the inertial force of product, and the specific setting can be determined according to the inertial force of product and the maximum elevation angle of third conveying mechanism 300. Specifically, in this embodiment, when detecting that there is defective product passing through first conveying mechanism 100, lifting mechanism 400 is started, drives second rotating shaft 330 to rise, and makes third conveyor belt 340 and fourth conveyor belt 350 close to the conveyor belt of first conveying mechanism 100. At this time, a direct current path from first conveying mechanism 100 to second conveying mechanism 200 is formed, and the unqualified product can smoothly enter into second conveying mechanism 200, and is sent to the designated area for further processing through second conveying mechanism 200. On the contrary, when the screening and sorting are not needed, third conveying mechanism 300 rotates around first rotating shaft 320 and is stored back to the original position, which does not affect the normal operation of first conveying mechanism 100.

[0042] In some embodiments of the utility model, lifting mechanism 400 is provided with first hydraulic cylinder 410 and second hydraulic cylinder 420, one end of first hydraulic cylinder 410 and second hydraulic cylinder 420 is rotationally connected with third frame 310 respectively, the other end of first hydraulic cylinder 410 and second hydraulic cylinder 420 is rotationally connected with second rotating shaft 330 respectively. In this embodiment, the driving mode of double hydraulic cylinders is adopted, which not only can improve the rotation torque of third conveying mechanism 300, but also can reduce the movement error of single hydraulic cylinder control.

[0043] In some embodiments of the utility model, anti -skid stripe is arranged on the surface of third conveyor belt 340 and fourth conveyor belt 350 respectively. In this embodiment, when the product with defect on first conveying mechanism 100 is monitored to pass, specifically, monitoring mechanism can be laser sensor, when laser sensor receives the signal of preposed full -inspection equipment, can control the action of lifting mechanism 400. Further, through the drive of lifting mechanism 400, the both ends of third conveying mechanism 300 can be connected with first conveying mechanism 100 and second conveying mechanism 200 respectively, establishes screening sorting channel, so that the product with defect on first conveying mechanism 100 can enter into second conveying mechanism 200, to realize the function of automatic screening and sorting. Since third conveying mechanism 300 is in the inclined state when screening and sorting, to avoid the product from slipping when moving on third conveyor belt 340 and fourth conveyor belt 350, by setting anti -skid stripe on third conveyor belt 340 and fourth conveyor belt 350, the friction between third conveyor belt 340 and fourth conveyor belt 350 and product can be improved.

[0044] In some embodiments of the utility model, buffer mechanism 500 includes buffer frame 520, swing bar 530, sliding sleeve 540, lifting shaft 550, buffer sleeve 560, buffer spring 570 and buffer roller 510, buffer frame 520 is connected with second conveying mechanism 200, one end of swing bar 530 is rotationally connected with buffer frame 520, the other end of swing bar 530 is rotationally connected with buffer roller 510, sliding sleeve 540 is sleeved on swing bar 530, one end of lifting shaft 550 is rotationally connected with sliding sleeve 540, the other end of lifting shaft 550 is slidingly connected with buffer sleeve 560, buffer sleeve 560 is fixedly connected with buffer frame 520, buffer spring 570 is sleeved with buffer spring 570. Specifically, in the embodiment, when the product enters second conveying mechanism 200 along third conveying mechanism 300, the product needs to adjust its state from the inclined state to the horizontal state under the action of inertial force and gravity, and the buffer mechanism 500 is arranged to avoid the product from being subjected to severe impact, so that the posture of the product can be gradually adjusted along with the change of buffer mechanism 500. Specifically, in the embodiment, buffer frame 520 serves as the main body of buffer mechanism 500, and buffer frame 520 is connected with second conveying mechanism 200, and in the embodiment, the connection mode can be fixed connection or adjustable connection. One end of swing bar 530 is rotationally connected with buffer frame 520, and the other end is connected with buffer roller 510, and the swing bar 530 is designed to allow the swing bar 530 to swing freely within a certain range. Sliding sleeve 540 is sleeved on swing bar 530 to guide and limit the movement of swing bar 530, and also provides support for the connection of subsequent components. One end of lifting shaft 550 is rotationally connected with sliding sleeve 540, and the other end is slidingly connected with buffer sleeve 560, forming a support for connecting swing bar 530 and buffer sleeve 560. Buffer sleeve 560 is fixed on buffer frame 520 to provide a sliding track for lifting shaft 550, and is also the fixing point of buffer spring 570 to ensure the positioning and stability of the entire buffer mechanism 500. Buffer spring 570 is sleeved on buffer sleeve 560 to absorb and release energy, and effectively relieves the impact force. Buffer roller 510 is located at the end of swing bar 530 and directly contacts and bears the pressure from the product, and disperses and consumes impact energy through its elastic deformation to protect the product from damage. Through the design of the mechanism, the buffer roller 510 can be automatically reset, with high automation and good buffering effect.

[0045] In some embodiments of the utility model, the both ends of buffer frame 520 are respectively provided with sliding block 521, sliding block 521 and second conveying mechanism 200 are slidably connected, and are fixed on second conveying mechanism 200 through fastening bolt 522. In the embodiment, buffer frame 520 can be adjusted along the conveying direction of second conveying mechanism 200 through sliding block 521, so that the initial position of buffer roller 510 can be controlled. Improve the buffering effect.

[0046] In some embodiments of the utility model, baffle 551 is arranged on lifting shaft 550, and baffle 551 can abut against the upper end face of buffer sleeve 560. By arranging baffle 551, the moving distance of lifting shaft 550 can be controlled, and buffer spring 570 can be supported.

[0047] In some embodiments of the utility model, buffer roller 510 is a silica gel roller. Specifically, in the embodiment, the shaft part of buffer roller 510 is made of metal, and a silica gel sleeve is formed on the outer peripheral wall of the shaft part. In the embodiment, buffer roller 510 made of silica gel has good elasticity and recovery, and after being compressed or stretched, buffer roller 510 can quickly return to the original state. In the buffering process, the silica gel roller can effectively absorb the impact force, and at the same time ensure that it returns to the original state after each impact, providing durable and reliable performance for frequent load cycles.

[0048] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range of ordinary skilled persons in the technical field without departing from the purpose of the utility model.

Claims

1. A bulk marble tile screening and sorting device, characterized by, The utility model relates to a kind of conveying device, including: First conveying mechanism (100); Second conveying mechanism (200), which is arranged above the first conveying mechanism (100); Third conveying mechanism (300), one end of the third conveying mechanism (300) is rotatably connected with the first conveying mechanism (100), and the other end of the third conveying mechanism (300) is connected with a lifting mechanism (400), which can be driven by the lifting mechanism (400) to enter the conveying path of the second conveying mechanism (200); Buffering mechanism (500) is arranged on the second conveying mechanism (200), and the buffering mechanism (500) is provided with a buffer roller (510); the buffer roller (510) is located on the movement path of the third conveying mechanism (300) in a normal state; the buffer roller (510) can be accommodated in the second conveying mechanism (200) in a pressure state.

2. The bulk marble tile screening and sorting device of claim 1, wherein, The first conveying mechanism (100) includes a first rack (110), a first conveyor belt (120), a second conveyor belt (130) and a first driving mechanism (140), the first conveyor belt (120) and the second conveyor belt (130) are arranged on the first rack (110) on both sides of the conveying direction of the first conveying mechanism (100) respectively, and the first driving mechanism (140) can control the rotation of the first conveyor belt (120) and the second conveyor belt (130) simultaneously.

3. The bulk marble tile screening and sorting apparatus of claim 2, wherein, The first conveyor belt (120) and the second conveyor belt (130) are both synchronous belts.

4. The bulk marble tile screening and sorting apparatus of claim 2, wherein, The third conveying mechanism (300) includes a third rack (310), a first rotating shaft (320), a second rotating shaft (330), a third conveyor belt (340) and a fourth conveyor belt (350), the first rotating shaft (320) is rotatably connected with the first rack (110); the third rack (310) is rotatably connected with the first rotating shaft (320), and the third rack (310) is fixedly connected with the first rack (110); one end of the lifting mechanism (400) is rotatably connected with the third rack (310), and the other end of the lifting mechanism (400) is rotatably connected with the second rotating shaft (330); the third conveyor belt (340) and the fourth conveyor belt (350) are arranged on the third rack (310) on both sides of the conveying direction of the third conveying mechanism (300) respectively.

5. The bulk marble tile screening and sorting apparatus of claim 4, wherein, The lifting mechanism (400) is provided with a first hydraulic cylinder (410) and a second hydraulic cylinder (420), one end of the first hydraulic cylinder (410) and the second hydraulic cylinder (420) is rotatably connected with the third rack (310) respectively, and the other end of the first hydraulic cylinder (410) and the second hydraulic cylinder (420) is rotatably connected with the second rotating shaft (330) respectively.

6. The bulk marble tile screening and sorting apparatus of claim 4, wherein, Anti-skid stripes are arranged on the surfaces of the third conveyor belt (340) and the fourth conveyor belt (350) respectively.

7. The bulk marble tile screening and sorting device of claim 1, wherein, The buffer mechanism (500) comprises a buffer frame (520), a swing lever (530), a sliding sleeve (540), a lifting shaft (550), a buffer sleeve (560), a buffer spring (570) and the buffer roller (510); the buffer frame (520) is connected with the second conveying mechanism (200); one end of the swing lever (530) is rotationally connected with the buffer frame (520), and the other end of the swing lever (530) is rotationally connected with the buffer roller (510); the sliding sleeve (540) is sleeved on the swing lever (530); one end of the lifting shaft (550) is rotationally connected with the sliding sleeve (540), the other end of the lifting shaft (550) is slidingly connected with the buffer sleeve (560), and the buffer sleeve (560) is fixedly connected with the buffer frame (520); the buffer spring (570) is sleeved on the buffer spring (570).

8. The bulk marble tile screening and sorting apparatus of claim 7, wherein, Both ends of the buffer frame (520) are respectively provided with sliding blocks (521), the sliding blocks (521) are slidingly connected with the second conveying mechanism (200), and the sliding blocks (521) are fixed on the second conveying mechanism (200) through fastening bolts (522).

9. The bulk marble tile screening and sorting apparatus of claim 7, wherein, The lifting shaft (550) is provided with a baffle (551), and the baffle (551) can abut against the upper end face of the buffer sleeve (560).

10. The bulk marble tile screening and sorting apparatus of claim 7, wherein, The buffer roller (510) is a silica gel roller.

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