Automatic crushing and sorting device for diamond synthetic blocks

Abstract

The invention discloses an automatic crushing and sorting device for diamond synthetic blocks. The automatic crushing and sorting device comprises a synthetic block crushing mechanism, a conveying and screening mechanism and a control module. The synthetic block crushing mechanism comprises a shell, a feeding port and a discharging port are formed in the shell, a discharging plate is arranged below the feeding port, a plurality of impact mechanisms are arranged on the periphery of the discharging plate in a surrounding mode, an inductor is arranged on one side of the discharging plate, a material channel is arranged below the discharging plate, the discharging port is formed in the tail end of the material channel, and the discharging plate is connected with an opening and closing mechanism. The impact mechanism comprises a guide groove, a guide frame is embedded in the guide groove, an impact cone is installed on the guide frame, a wobble wheel is arranged in the guide frame, the wobble wheel is connected with an output shaft of the transmission mechanism, and the wobble wheel is used for moving under driving of the transmission mechanism and driving the guide frame to move. The guide groove is used for providing a movement track and support for the guide frame when the guide frame moves. The device realizes step-by-step crushing, recovery and separation of the diamond synthetic blocks, improves the diamond recovery rate, and reduces the material loss.

Description

Technical Field

[0001] The invention relates to the field of superhard material synthesis, and in particular to an automatic crushing and sorting device for diamond synthesis blocks. Background Art

[0002] The diamond synthetic block is composed of graphite core column, pyrophyllite block, dolomite block, conductive steel ring, lining graphite and graphite sheet. In the process of product processing, it is usually necessary to break the synthetic block to detect the growth of diamond so as to adjust and optimize the process in time. However, the material properties of the various components that make up the diamond synthetic block are different, and it is difficult to separate them all at once. At present, the artificial use of steel hammers to break the synthetic block has problems such as low crushing efficiency and serious dust pollution.

[0003] In addition, a Chinese invention patent with announcement number CN117019821A discloses a fully automatic separation machine for diamond synthetic blocks, including a synthetic block separation component, a parts crushing component, a slide screening component, a magnetic separation component, a classification collection component and a synthetic column extrusion component. The synthetic block separation component adopts a hydraulic cylinder, and multiple groups of hydraulic cylinders and pressure column tooling are arranged around the synthetic column placement table. However, in actual production, the impact force of the hydraulic cylinder will not only separate the synthetic blocks, but also damage the various parts of the synthetic blocks, resulting in the mixing of diamond materials into waste materials after some synthetic blocks are crushed, which is easy to cause diamond material loss. In addition, the use of a synthetic block separation component with multiple groups of hydraulic cylinders also increases costs and causes energy waste. Therefore, the separation device of diamond synthetic blocks should be improved in the direction of efficient recovery of diamonds, energy saving and environmental protection. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art, improve the recovery rate of diamonds, reduce the loss of diamond materials, and provide an automatic crushing and sorting device for diamond synthetic blocks.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: A diamond synthetic block automatic crushing and sorting device comprises a synthetic block crushing mechanism, a conveying and screening mechanism and a control module. The synthetic block crushing mechanism is used to crush the synthetic blocks, and the conveying and screening mechanism is used to convey the crushed synthetic block components and screen the crushed synthetic block components to separate the synthetic columns; The synthetic block crushing mechanism comprises a shell, a feed port is arranged on the shell, a feed plate is arranged below the feed port, the feed plate is connected to the opening and closing mechanism, a plurality of impact mechanisms are arranged around the feed plate, a sensor is arranged on one side of the feed plate, a material channel is arranged below the feed plate, and a discharge port is arranged at the end of the material channel; The impact mechanism includes a guide groove, a guide frame is nested in the guide groove, an impact cone is installed on the guide frame, a swing wheel is arranged in the guide frame, the swing wheel is connected to the output shaft of the transmission mechanism, the swing wheel is used to move under the drive of the transmission mechanism and drive the guide frame to move, and the guide groove is used to provide a motion track and support for the guide frame when the guide frame moves; the input end of the control module is connected to the output end of the sensor, and the output end of the control module is electrically connected to the controlled ends of the transmission mechanism, the opening and closing mechanism, and the conveying and screening mechanism, respectively.

[0006] The present invention provides an oscillating wheel, a guide frame and an impact cone as an impact mechanism, utilizes the reciprocating motion of the oscillating wheel as a power, drives the impact cone to apply an impact force to the diamond synthetic block, and multiple impact mechanisms impact and extrude the diamond synthetic block from multiple directions, so that the diamond synthetic block is broken without damaging the diamond material; the material state is monitored by a sensor to detect whether the synthetic block is broken in place, thereby avoiding damage to the internal synthetic column, and realizing automatic control of the breaking and conveying of the diamond synthetic block by the control module.

[0007] Preferably, the impact cone comprises an impact plate and a conical protrusion arranged on the impact plate, a plurality of the conical protrusions are provided, and the impact plate is arranged perpendicular to the guide frame.

[0008] Preferably, the sensor is a force sensor or a vibration sensor.

[0009] Preferably, the blanking plate includes a first blanking plate and a second blanking plate which are arranged opposite to each other, the outer sides of the first blanking plate and the second blanking plate are hinged to the shell, the opening and closing mechanism includes a first cylinder arranged under the first blanking plate and a second cylinder arranged under the second blanking plate, the inner sides of the first blanking plate and the second blanking plate are hinged to the piston rods of the first cylinder and the second cylinder respectively, and the controlled end of the first cylinder and the controlled end of the second cylinder are both connected to the output end of the control module.

[0010] Preferably, the transmission mechanism includes a motor, a driving gear, multiple driven gears and multiple transmission shafts, the driving gear is fixedly connected to the output shaft of the motor, the driving gear is meshing and rotationally connected to the multiple driven gears, each of the driven gears is fixedly connected to one end of the corresponding transmission shaft, the other end of each of the transmission shafts is connected to the corresponding swing wheel, and the control module is connected to the controlled end of the motor.

[0011] Preferably, the swing wheel adopts a triangular cam, the guide frame adopts a square structure, and the swing wheel and the guide frame are arranged in parallel. When the swing wheel with the triangular cam structure rotates, it pushes the square guide frame outside the swing wheel. As the relative position between the swing wheel and the guide frame changes, the guide frame moves forward and backward, driving the impact cone to impact forward and backward, thereby performing a flexible impact on the synthetic block.

[0012] Preferably, the conveying and screening mechanism is arranged at the discharge port, and the conveying and screening mechanism includes a first conveyor belt, a storage bucket is arranged at the end of the first conveyor belt, a pusher claw is arranged on the side wall of the first conveyor belt, and the pusher claw is used to straighten the synthetic column. The transmission roller of the first conveyor belt adopts a permanent magnet roller. A steel ring collection bucket is arranged under the first conveyor belt, and a scraper is arranged at the opening above the steel ring collection bucket, and the scraper is used to cooperate with the conveyor belt to collect the steel rings.

[0013] Preferably, the material channel includes a first bending portion, which is an inclined slide, an inclined screen is arranged above the inclined slide, the head end of the first conveyor belt passes through the shell from the discharge port and is arranged adjacent to the end of the inclined screen, and a slag collecting bucket is arranged at the tail end of the inclined slide.

[0014] Preferably, it also includes a cutting and recycling mechanism, which includes a second conveyor belt, which is arranged at the end of the conveying and screening mechanism, and a cutting table is arranged at the end of the second conveyor belt, and a fixed groove and a tool fixing frame are arranged on the cutting table, and a vertical first cutter and a horizontal second cutter are arranged on the tool fixing frame, and the first cutter is fixed on the piston rod of the third cylinder, and the second cutter is fixed on the output shaft of the side cutting motor; the fourth cylinder and the hopper are arranged on both sides of the fixed groove, and the fourth cylinder is used to push the synthetic column in the fixed groove into the hopper, and a follower roller is arranged in the fixed groove, and the third cylinder, the fourth cylinder, and the side cutting motor are all connected to the output end of the control module. The synthetic column is cut by the first cutter on the cutting table, and the second cutter on the cutting table cooperates with the follower roller to rotate and cut the synthetic column, and the graphite skin on the outer surface of the synthetic column is removed for easy recycling.

[0015] Preferably, anti-slip baffles are evenly arranged on the second conveyor belt.

[0016] The present invention realizes the purpose of step-by-step crushing, recovery and separation of diamond synthetic blocks by cooperating with each other through the synthetic block crushing mechanism, the conveying and screening mechanism and the cutting and recovery mechanism, greatly reduces the labor cost and equipment design cost, reduces environmental pollution and avoids the problem of equipment blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings: Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a structural schematic diagram of the synthetic block crushing mechanism of the present invention; Figure 3 It is a structural schematic diagram of the impact mechanism in the synthetic block crushing mechanism of the present invention; Figure 4It is a structural schematic diagram of a blanking plate in a composite block crushing mechanism of the present invention; Figure 5 It is a schematic diagram of the internal structure of the material channel of the present invention; Figure 6 It is a structural schematic diagram of the conveying and screening mechanism of the present invention; Figure 7 It is a structural schematic diagram of the cutting and recycling mechanism of the present invention.

[0018] Description of reference numerals: 1. synthetic block crushing mechanism, 2. conveying and screening mechanism, 3. cutting and recycling mechanism, 101. feeding port, 102. impact mechanism, 1021. guide frame, 1022. swing wheel, 1023. impact plate, 1024. conical protrusion, 1025. guide groove, 103. transmission mechanism, 1031. transmission shaft, 104. housing, 105. discharge port, 106. unloading plate, 107. sensor, 108. material channel, 1081. inclined slideway, 1082. inclined leakage net, 109. slag collecting bucket, 201. first conveyor belt, 202. pusher claw, 203. storage bucket, 204. steel ring collecting bucket, 2041. scraper, 301. second conveyor belt, 3011. anti-skid baffle, 302. cutting table, 3021. first cutting knife, 3022. second cutting knife, 3023. third cylinder, 3024. fourth cylinder, 3025. fixed groove, 3026. follower roller, 303. hopper. DETAILED DESCRIPTION

[0019] like Figure 1 As shown, the present invention provides an automatic crushing and sorting device for diamond synthetic blocks, comprising a synthetic block crushing mechanism 1, a conveying and screening mechanism 2 and a control module, wherein the synthetic block crushing mechanism 1 is used to crush synthetic blocks, and the conveying and screening mechanism 2 is used to convey the crushed synthetic block components, and screen the crushed synthetic block components to separate synthetic columns.

[0020] like Figure 2 and Figure 4 As shown, the synthetic block crushing mechanism 1 includes a housing 104, a feed port 101 is provided on the housing 104, a feed plate 106 is provided below the feed port 101, the feed plate 106 is connected to the opening and closing mechanism, a plurality of impact mechanisms 102 are provided around the feed plate 106, a sensor 107 is provided on one side of the feed plate 106, a material channel 108 is provided below the feed plate 106, and a discharge port 105 is provided at the end of the material channel 108. The input end of the control module is connected to the output end of the sensor 107.

[0021] like Figure 3As shown, the impact mechanism 102 includes a guide groove 1025, a guide frame 1021 is nested in the guide groove 1025, an impact cone is installed on the guide frame 1021, a swing wheel 1022 is arranged in the guide frame 1021, and the swing wheel 1022 is connected to the output shaft of the transmission mechanism. Specifically, the swing wheel 1022 is connected to the transmission shaft 1031. The swing wheel 1022 is used to move under the drive of the transmission mechanism and drive the guide frame 1021 to move, and the guide groove 1025 is used to provide a motion track and support for the guide frame 1021 when the guide frame 1021 moves. The impact cone includes an impact plate 1023 and a conical protrusion 1024 arranged on the impact plate 1023, and a plurality of conical protrusions 1024 are arranged, and the impact plate 1023 is arranged perpendicular to the guide frame 1021. The conical protrusion 1024 is made of metal, and the plurality of conical protrusions 1024 are evenly distributed. In this embodiment, the swing wheel 1022 adopts a triangular cam, the guide frame 1021 adopts a square structure, and the swing wheel 1022 and the guide frame 1021 are arranged in parallel.

[0022] In this embodiment, a swing wheel 1022, a guide frame 1021 and an impact cone are provided as the impact mechanism 102, and the reciprocating motion of the swing wheel 1022 is used as a power to drive the impact cone on the guide frame to apply an impact force to the diamond synthetic block. Multiple impact mechanisms 102 impact and squeeze the diamond synthetic block from multiple directions, so that the diamond synthetic block is broken without damaging the diamond material. The sensor 107 is used to monitor whether the breaking is in place to avoid damaging the internal synthetic column, so that the control module automatically controls the breaking and transportation of the diamond synthetic block.

[0023] In this embodiment, the blanking plate 106 includes a first blanking plate and a second blanking plate that are relatively arranged. The outer sides of the first blanking plate and the second blanking plate are hinged to the shell 104. The opening and closing mechanism includes a first cylinder arranged under the first blanking plate and a second cylinder arranged under the second blanking plate. The inner sides of the first blanking plate and the second blanking plate are respectively hinged to the piston rods of the first cylinder and the second cylinder. The controlled end of the first cylinder and the controlled end of the second cylinder are both connected to the output end of the control module.

[0024] The sensor 107 may be a force sensor or a vibration sensor. In this embodiment, a vibration sensor is used to sense the change of the vibration force of the synthesis block and output a signal to the control module.

[0025] In this embodiment, four impact mechanisms 102 are provided, which are located around the blanking plate 106. The impact mechanisms act from all sides of the composite block to improve the crushing efficiency.

[0026] In this embodiment, the transmission mechanism 103 includes a motor, a driving gear, a plurality of driven gears and a plurality of transmission shafts. The driving gear is fixedly connected to the output shaft of the motor, and the driving gear is meshed and rotatably connected to the plurality of driven gears. In this embodiment, four driven gears are provided. Each driven gear is fixedly connected to one end of a corresponding transmission shaft 1031, and the other end of each transmission shaft 1031 is connected to a corresponding swing wheel 1022, and a control module is connected to a controlled end of the motor.

[0027] In this embodiment, Figure 5 As shown, the material channel 108 includes a first bending portion, which is an inclined slide 1081. An inclined filter 1082 is arranged above the inclined slide 1081. The head end of the first conveyor belt 201 of the conveying and screening mechanism 2 penetrates into the shell 104 from the discharge port 105 and is arranged close to the end of the inclined filter 1082. A slag collection bucket 109 is arranged at the tail end of the inclined slide. After the slag filtered by the inclined filter 1082 falls into the inclined slide, it slides into the slag collection bucket 109 through the inclined slide to collect the slag. The synthetic block assembly after filtering out the slag includes a steel ring and a synthetic column, and the synthetic block assembly is transported out of the discharge port 105 through the first conveyor belt.

[0028] like Figure 6 As shown, the conveying and screening mechanism 2 is arranged at the discharge port 105, and the conveying and screening mechanism 2 includes a first conveyor belt 201, and the output end of the control module is connected to the controlled end of the first conveyor belt 201. A storage bucket 203 is arranged at the end of the first conveyor belt 201, and a pusher 202 is arranged on the side wall of the first conveyor belt 201. The pusher 202 is used to adjust the synthetic column. The transmission roller on the right side of the first conveyor belt 201 adopts a permanent magnetic roller. A steel ring collection bucket 204 is arranged below the first conveyor belt 201, and a scraper 2041 is arranged at the opening above the steel ring collection bucket 204. The scraper 2041 is used to cooperate with the first conveyor belt 201 to collect the steel ring. The storage bucket 203 is used to temporarily store the synthetic column. The bottom of the storage bucket 203 adopts an inclined hollow structure. The inclined structure is convenient for sliding down to the bottom of the storage bucket, and the hollow structure is convenient for further cleaning of the broken materials on the synthetic column.

[0029] In this embodiment, Figure 7As shown, the present invention further includes a cutting and recycling mechanism 3, which includes a second conveyor belt 301, and the second conveyor belt 301 is arranged at the end of the conveying and screening mechanism 3. In this embodiment, the second conveyor belt is arranged at the end of the storage bucket 203. The second conveyor belt 301 is evenly provided with anti-slip baffles 3011. A cutting table 302 is provided at the end of the second conveyor belt 301, and a fixed groove 3025 and a tool fixing frame are provided on the cutting table. A vertical first cutter 3021 and a horizontal second cutter 3022 are provided on the tool fixing frame. The first cutter 3021 is fixed on the piston rod of the third cylinder 3023, and the second cutter 3022 is fixed on the output shaft of the side cutting motor; the fourth cylinder 3024 and the hopper 303 are correspondingly provided on both sides of the fixed groove 3025. The fourth cylinder 3024 is used to push the synthetic column in the fixed groove 3025 into the hopper 303. A follower roller 3026 is provided in the fixed groove 3025. Two follower rollers 3026 are provided and are relatively arranged on the inner wall of the fixed groove 3025. The third cylinder 3023, the fourth cylinder 3024, and the side cutting motor are all connected to the output end of the control module. In this embodiment, the side cutting motor adopts a reciprocating motor.

[0030] The specific working process of this embodiment is as follows: the diamond synthetic block is put into the synthetic block crushing mechanism 1 from the feed port 101 and falls on the unloading plate 106. After the sensor 107 on the unloading plate 106 detects that the unloading plate 106 has a high-intensity vibration, the motor is started, and the transmission mechanism drives the impact cone of the impact mechanism 102 to move back and forth, and performs a flexible impact on the diamond synthetic block. When the triangular swing wheel 1022 rotates, it impacts the square guide frame 1021 outside the swing wheel 1022. As the relative position between the three vertices of the triangular swing wheel 1022 and the guide frame 1021 changes, the guide frame 1021 is driven to move forward and backward, and the impact cone is driven to impact forward and backward, thereby performing a flexible impact on the synthetic block, thereby crushing the stones outside the diamond synthetic block. After the crushing is completed, the sensor 107 detects that the vibration of the material discharge plate 106 is weakened to a certain intensity, and the control module controls the material discharge plate 106 to open, so that the crushed material is leaked into the material channel 108, and the slag material is filtered out through the inclined filter 1082 in the material channel 108, and the slag material falls into the slag collection bucket 109, and the filtered synthetic column and steel ring enter the conveying and screening mechanism 2 from the discharge port 105 through the first conveyor belt 201. The claw 202 set on the inner wall of the conveying and screening mechanism 2 corrects the position of the synthetic column to ensure that the synthetic column is smoothly conveyed into the storage bucket 203, and the steel ring is adsorbed by the permanent magnetic roller on the right side of the first conveyor belt 201, and the adsorbed steel ring is scraped off by the scraper 2041 above the steel ring collection bucket 204, and falls into the steel ring collection bucket 204. The synthetic column in the storage bucket 203 is conveyed to the cutting table 302 through the second conveyor belt 301. The second cutter 3022 on the cutting table 302 cooperates with the follower roller 3026 to remove the graphite skin on the outer surface of the synthetic column. Then, the first cutter 3021 splits the synthetic column under the action of the third cylinder 3023, and the fourth cylinder 3024 pushes the split synthetic column to the hopper 303, thereby completing the automatic crushing, sorting and recycling of the diamond synthetic block.

[0031] In this embodiment, the synthetic block crushing mechanism 1, the conveying and screening mechanism 2 and the cutting and recovery mechanism 3 cooperate with each other to achieve the purpose of step-by-step crushing, recovery and separation of diamond synthetic blocks, greatly reducing labor costs and equipment design costs, reducing environmental pollution, and avoiding equipment blockage problems.

[0032] The above are only preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope defined by the claims.

Claims

1. A diamond synthetic block automatic crushing and sorting device, comprising a synthetic block crushing mechanism, a conveying and screening mechanism and a control module, characterized in that: The synthetic block crushing mechanism is used to crush the synthetic blocks, and the conveying and screening mechanism is used to convey the crushed synthetic block components and screen the crushed synthetic block components to separate the synthetic columns; The synthetic block crushing mechanism comprises a shell, a feed port is arranged on the shell, a feed plate is arranged below the feed port, the feed plate is connected to the opening and closing mechanism, a plurality of impact mechanisms are arranged around the feed plate, a sensor is arranged on one side of the feed plate, a material channel is arranged below the feed plate, and a discharge port is arranged at the end of the material channel; The impact mechanism includes a guide groove, a guide frame is nested in the guide groove, an impact cone is installed on the guide frame, a swing wheel is arranged in the guide frame, the swing wheel is connected to the output shaft of the transmission mechanism, the swing wheel is used to move under the drive of the transmission mechanism and drive the guide frame to move, and the guide groove is used to provide a motion track and support for the guide frame when the guide frame moves; the input end of the control module is connected to the output end of the sensor, and the output end of the control module is electrically connected to the controlled ends of the transmission mechanism, the opening and closing mechanism, and the conveying and screening mechanism, respectively.

2. The automatic crushing and sorting device for diamond synthetic blocks according to claim 1 is characterized in that: The impact cone comprises an impact plate and a conical protrusion arranged on the impact plate, a plurality of the conical protrusions are provided, and the impact plate is arranged perpendicular to the guide frame.

3. The automatic crushing and sorting device for diamond synthetic blocks according to claim 1 is characterized in that: The sensor is a force sensor or a vibration sensor.

4. The automatic crushing and sorting device for diamond synthetic blocks according to claim 1 is characterized in that: The blanking plate includes a first blanking plate and a second blanking plate which are arranged opposite to each other, the outer sides of the first blanking plate and the second blanking plate are hinged to the shell, the opening and closing mechanism includes a first cylinder arranged below the first blanking plate and a second cylinder arranged below the second blanking plate, the inner sides of the first blanking plate and the second blanking plate are hinged to the piston rods of the first cylinder and the second cylinder respectively, and the controlled end of the first cylinder and the controlled end of the second cylinder are both connected to the output end of the control module.

5. The automatic crushing and sorting device for diamond synthetic blocks according to claim 1 is characterized in that: The transmission mechanism includes a motor, a driving gear, multiple driven gears and multiple transmission shafts, the driving gear is fixedly connected to the output shaft of the motor, the driving gear is meshed and rotationally connected to the multiple driven gears, each of the driven gears is fixedly connected to one end of the corresponding transmission shaft, the other end of each of the transmission shafts is connected to the corresponding swing wheel, and the control module is connected to the controlled end of the motor.

6. The automatic crushing and sorting device for diamond synthetic blocks according to claim 1 is characterized in that: The swing wheel adopts a triangular cam, the guide frame adopts a square structure, and the swing wheel and the guide frame are arranged in parallel.

7. The automatic crushing and sorting device for diamond synthetic blocks according to claim 1 is characterized in that: The conveying and screening mechanism is arranged at the discharge port, and the conveying and screening mechanism includes a first conveyor belt, a storage bucket is arranged at the end of the first conveyor belt, a pusher claw is arranged on the side wall of the first conveyor belt, and the pusher claw is used to straighten the synthetic column. The transmission roller of the first conveyor belt adopts a permanent magnetic roller. A steel ring collection bucket is arranged under the first conveyor belt, and a scraper is arranged at the opening above the steel ring collection bucket. The scraper is used to cooperate with the conveyor belt to collect the steel rings.

8. The automatic crushing and sorting device for diamond synthetic blocks according to claim 7 is characterized in that: The material channel includes a first bending portion, which is an inclined slide, and an inclined leakage net is arranged above the inclined slide. The head end of the first conveyor belt passes through the shell from the discharge port and is arranged closely to the end of the inclined leakage net. A slag collection bucket is arranged at the tail end of the inclined slide.

9. The automatic crushing and sorting device for diamond synthetic blocks according to claim 1 is characterized in that: It also includes a cutting and recycling mechanism, which includes a second conveyor belt, which is arranged at the end of the conveying and screening mechanism, a cutting table is arranged at the end of the second conveyor belt, a fixed groove and a tool fixing frame are arranged on the cutting table, a vertical first cutter and a horizontal second cutter are arranged on the tool fixing frame, the first cutter is fixed on the piston rod of the third cylinder, and the second cutter is fixed on the output shaft of the side cutting motor; a fourth cylinder and a hopper are arranged on both sides of the fixed groove, and the fourth cylinder is used to push the synthetic column in the fixed groove into the hopper, and a follower roller is arranged in the fixed groove, and the third cylinder, the fourth cylinder and the side cutting motor are all connected to the output end of the control module.

10. The automatic crushing and sorting device for diamond synthetic blocks according to claim 9, characterized in that: Anti-skid baffles are evenly arranged on the second conveyor belt.

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