Full-automatic integrated coal rock sample preparation equipment

Abstract

The utility model provides full-automatic integrated coal rock sample preparation equipment, which comprises a working table, a heating assembly, a pressure driving mechanism, a sealing driving mechanism and a control system, a mold with a sample preparation cavity is arranged in the working table, and two ends of the sample preparation cavity are respectively provided with a feed port and a pressure port; the heating assembly is arranged between the mold and the workbench; the pressing driving mechanism is arranged below the workbench, a power output end of the pressing driving mechanism is provided with a tray jig, the tray jig extends into the sample preparation cavity through the pressing opening and can move up and down along the sample preparation cavity, and one end, close to the feeding opening, of the tray jig is connected with a tray for containing a sample; a pressing plate is arranged at the power output end of the sealing driving mechanism, protrudes out of the upper surface of the mold and can rotate to close or open the feeding port; the control system is electrically connected with the heating assembly, the pressure applying driving mechanism and the sealing driving mechanism. Automatic sample forming control is achieved through the control system, the sample preparation efficiency and the sample quality are improved, manpower is saved, and the operation risk is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of coal and rock sample preparation equipment, and more specifically, to a fully automatic integrated coal and rock sample preparation equipment. Background Technology

[0002] Coal petrography analysis has wide applications in coal phase research, geological exploration, and coking coal blending. Preparing qualified coal petrography slides is a prerequisite for coal petrography analysis, and the quality of the slides directly affects subsequent analytical conclusions. Currently, the preparation of coal petrography slides typically involves mixing coal samples with embedding powder in a certain proportion, placing the mixture in a container, heating and stirring the container in a furnace, and then pressing the melted material into a slide using a sample press. This preparation process, which relies on manual stirring and heating before pressing, is not only inefficient but also lacks precise control over time, temperature, and pressure, making it difficult to ensure consistent experimental conditions and resulting in unrepresentative samples. Furthermore, manual stirring during heating can cause the container to shake, posing a risk of burns. Utility Model Content

[0003] The main purpose of this invention is to provide a fully automatic integrated coal and rock sample preparation device to achieve precise control of time, temperature and pressure, ensure the consistency of test conditions, make the samples representative, improve sample quality and sample preparation efficiency, and reduce operational risks.

[0004] To achieve the above objectives, this utility model provides a fully automatic integrated coal and rock sample preparation device, including a workbench, a heating component, a pressure driving mechanism, a sealing driving mechanism, and a control system. The workbench contains a mold with a sample preparation cavity, the two ends of which have an inlet and a pressure port, respectively. The heating component is positioned between the mold and the workbench. The pressure driving mechanism is located below the workbench, and its power output end is equipped with a tray fixture. The tray fixture extends into the sample preparation cavity through the pressure port and can move up and down along the cavity. The end of the tray fixture near the inlet is connected to a tray holding the sample. The power output end of the sealing driving mechanism is equipped with a pressure plate protruding from the upper surface of the mold. The pressure plate can rotate to close or open the inlet. The control system is electrically connected to the heating component, the pressure driving mechanism, and the sealing driving mechanism, respectively.

[0005] Preferably, the mold includes a cylindrical body, and the body, pressure plate, and tray are all made of polytetrafluoroethylene polymer material.

[0006] Preferably, the sealing drive mechanism includes a rotary pressing cylinder, which is disposed on one side of the worktable, and the piston rod of the rotary pressing cylinder is connected to one end of the pressure plate.

[0007] Preferably, the worktable has a clearance groove for the operation of the rotary pressing cylinder.

[0008] Preferably, the pressure driving mechanism includes a telescopic cylinder, the pallet fixture includes a columnar body, one end of the columnar body connected to the pallet is provided with an installation groove, and the other end of the columnar body is connected to the telescopic rod of the telescopic cylinder through a floating joint; the pallet includes a support platform and a connecting column connected to the support platform, the connecting column is located below the support platform, and the connecting column is threadedly connected to the installation groove.

[0009] Preferably, the heating assembly includes a heating element and a heating wire. The heating element has a heating cavity for placing the mold, and the heating wire is embedded in the heating element and arranged in multiple rings around the heating cavity.

[0010] Preferably, the heating wire is surrounded by a nickel alloy steel tube, and the inside of the nickel alloy steel tube is filled with magnesium oxide insulating material.

[0011] Preferably, a heat insulation layer is provided on the outside of the heating element, and the material of the heat insulation layer includes silicone aerogel.

[0012] Preferably, a condensation pipe is provided around the outside of the mold, and the condensation pipe is located inside the heating body.

[0013] Preferably, the fully automated integrated coal and rock sample preparation equipment also includes a base plate, which is spaced below the workbench. Support columns connect the base plate and the workbench, and the number of support columns is three, which are arranged in a triangular pattern.

[0014] Compared with existing technologies, the advantages of the fully automated integrated coal and rock sample preparation equipment provided by this utility model are as follows:

[0015] (1) This utility model seals the inlet of the sample preparation chamber with a pressure plate, heats the coal sample and embedded powder in the sample preparation chamber with a heating component, and drives the tray fixture to move the tray closer to the pressure plate through a pressure driving mechanism, thereby pressing and shaping the sample through the tray and the pressure plate. The coal sample preparation equipment of this utility model can fully meet the process requirements of sample shaping, and in the sample shaping process, the time, temperature and pressure can be precisely controlled by the control system to improve the sample preparation efficiency and sample quality, ensure the consistency of test conditions, and thus ensure the reliability of data and the representativeness of the sample, avoiding errors caused by human intervention;

[0016] (2) This utility model utilizes a control system to achieve automatic sample forming control, which can save labor costs and reduce operational risks. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of a fully automatic integrated coal and rock sample preparation device provided for some embodiments of this utility model;

[0019] Figure 2 A cross-sectional view of a fully automated integrated coal and rock sample preparation device provided for some embodiments of this utility model;

[0020] Figure 3 Top view of a heating assembly provided for some embodiments of the present invention;

[0021] Figure 4 for Figure 3 Sectional view at point AA;

[0022] Figure 5 A first-view structural schematic diagram of a fully automated integrated coal and rock sample preparation device provided for some other embodiments of this utility model;

[0023] Figure 6 This is a second-view structural schematic diagram of a fully automated integrated coal and rock sample preparation device provided for some other embodiments of the present invention.

[0024] The above figures include the following reference numerals:

[0025] 10. Workbench; 101. Clearance groove; 20. Heating assembly; 201. Heating element; 202. Heating wire; 203. Heating chamber; 204. Positioning groove; 30. Pressure driving mechanism; 31. Tray fixture; 311. Mounting groove; 32. Tray; 321. Support platform; 322. Connecting column; 33. Floating joint; 40. Sealing driving mechanism; 41. Pressure plate; 42. Pressure head; 43. Vibration motor; 50. Mold; 501. Sample preparation chamber; 502. Inlet; 503. Main body; 504. Positioning flange; 60. Base plate; 70. Support column; 80. Condensation pipe; 90. Lifting platform; 901. First platform; 9 02. Second platform; 903. Column; 91. First lifting drive mechanism; 92. Rotary table; 93. Rotation drive mechanism; 931. First motor; 932. Pinion; 933. Gear; 94. Stirring paddle; 941. Stirring shaft; 942. Blade; 95. Stirring drive mechanism; 951. Second motor; 952. First support arm; 953. First pulley; 954. Second pulley; 955. Synchronous belt; 100. Feeding device; 1001. Second support arm; 1002. Second lifting drive mechanism; 1003. Feeding cup; 1004. Tilting drive mechanism; 1005. Funnel; 1006. Feeding platform. Detailed Implementation

[0026] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Example 1

[0027] Please see Figures 1 to 4 As shown, the fully automatic integrated coal and rock sample preparation equipment provided by this utility model will now be described. This fully automated integrated coal and rock sample preparation equipment includes a workbench 10, a heating component 20, a pressure driving mechanism 30, a sealing driving mechanism 40, and a control system. The workbench 10 contains a mold 50 with a sample preparation chamber 501. The sample preparation chamber 501 has an inlet 502 and a pressure port at both ends, respectively. The heating component 20 is located between the mold 50 and the workbench 10. The pressure driving mechanism 30 is located below the workbench 10. The power output end of the pressure driving mechanism 30 is equipped with a tray fixture 31. The tray fixture 31 extends into the sample preparation chamber 501 through the pressure port and can move up and down along the sample preparation chamber 501. The end of the tray fixture 31 near the inlet 502 is connected to a tray 32 holding the sample. The power output end of the sealing driving mechanism 40 is equipped with a pressure plate 41. The pressure plate 41 protrudes from the upper surface of the mold 50 and can rotate to close or open the inlet 502. The control system is electrically connected to the heating component 20, the pressure driving mechanism 30, and the sealing driving mechanism 40, respectively.

[0028] Specifically, the pressure plate 41, the mold 50, and the pressure driving mechanism 30 are arranged from top to bottom (relative to...). Figure 1 (As shown in the diagram) arranged sequentially. The mold 50 is set between the pressure plate 41 and the pressure driving mechanism 30, and can be fixed on the worktable 10. The mold 50 is set vertically, and the feed port 502 is located at the top of the sample preparation chamber 501. It is used to put in the raw material made by mixing coal sample and embedding powder in a certain proportion. The pressure port is located at the bottom of the sample preparation chamber 501, and is used for the tray fixture 31 to extend into the sample preparation chamber 501. The tray fixture 31 is used to fix the tray 32, and the tray 32 is used to carry the raw material for sample preparation. The pressure plate 41 is used to seal the feed port 502. It can rotate under the action of the sealing driving mechanism 40, thereby opening or closing the feed port 502. The size of the pressure plate 41 is larger than the size of the feed port 502. After the pressure plate 41 is pressed down, it can effectively seal the feed port 502, and it does not need to be perfectly aligned, which greatly reduces the difficulty of use and maintenance. The principle of this scheme is as follows: the heating component 20 heats the coal sample and embedded powder in the sample preparation chamber 501 to fully fuse them, thus eliminating the need for manual stirring, saving labor costs, and reducing operational risks. Under the driving action of the pressure drive mechanism 30, the tray fixture 31 and tray 32 move up and down, so that the fully fused raw material can be pressed into shape when the pressure plate 41 closes the feed port 502, and the shaped sample is pushed out of the sample preparation chamber 501 when the pressure plate 41 releases the feed port 502. This coal sample preparation equipment can fully meet the process requirements of sample forming, and during the sample forming process, the control system can accurately control time, temperature, and pressure to improve sample preparation efficiency and sample quality, ensure the consistency of test conditions, and thus ensure the reliability of data and the representativeness of samples, avoiding errors caused by manual intervention.

[0029] In this embodiment, the mold 50 includes a cylindrical body 503. The body 503, pressure plate 41, and tray 32 are all made of polytetrafluoroethylene (PTFE) polymer material. The mixture of coal sample and embedding powder has a certain viscosity, making it difficult to demold after molding. In this embodiment, the body 503, pressure plate 41, and tray 32 are all made of PTFE polymer material. After the sample is pressed and molded, the PTFE polymer material can prevent the sample from adhering to the mold 50, tray 32, and pressure plate 41, thus eliminating the need for additional separation measures and solving the problem of difficult demolding, thereby improving production efficiency and product quality.

[0030] In this embodiment, the sealing drive mechanism 40 includes a rotary pressing cylinder, which is disposed on one side of the worktable 10. The piston rod of the rotary pressing cylinder is connected to one end of the pressure plate 41. The rotary pressing cylinder operates to cause the pressure plate 41 to rotate and press down or to lift and rotate. It can be understood that the rotary pressing cylinder can simultaneously drive the pressure plate 41 to rotate and lift. During the sample preparation process, after the raw material is placed in the sample preparation chamber 501, the rotary pressing cylinder drives the pressure plate 41 to rotate and descend to close the inlet 502. After the sample is formed, the rotary pressing cylinder drives the pressure plate 41 to lift and rotate away from the inlet 502 to avoid interfering with the pressure driving mechanism 30 in pushing the sample out of the sample preparation chamber 501. The worktable 10 is provided with a clearance groove 101 for the operation of the rotary pressing cylinder. Specifically, a clearance groove 101 is provided on one side of the workbench 10. The rotary pressing cylinder is installed in the clearance groove 101. The clearance groove 101 is used to avoid the piston rod of the rotary pressing cylinder, so that the piston rod of the rotary pressing cylinder can extend into or out of the clearance groove 101. At the same time, since the rotary pressing cylinder is installed in the clearance groove 101, the volume and weight of the equipment are reduced.

[0031] In this embodiment, the pressure driving mechanism 30 includes a telescopic cylinder, and the tray fixture 31 includes a cylindrical body. One end of the cylindrical body connected to the tray 32 is provided with a mounting groove 311, and the other end of the cylindrical body is connected to the telescopic rod of the telescopic cylinder via a floating joint 33. The tray 32 includes a support platform 321 and a connecting column 322 connected to the support platform 321. The connecting column 322 is located below the support platform 321, and the connecting column 322 is threadedly connected to the mounting groove 311 for easy replacement. The bottom surfaces of the connecting column 322 and the mounting groove 311 are fitted with a clearance fit. The cylindrical body is made of aluminum, and by utilizing the thermal conductivity of aluminum, the tray 32 at its upper end can be quickly heated, ensuring uniform heating of the sample's bottom. The floating joint 33 facilitates the connection between the telescopic rod of the telescopic cylinder and the tray fixture 31, making the connection structure more stable. Simultaneously, the floating joint 33 has a correction function, effectively solving the problem of misalignment between the main body 503 of the mold 50 and the cylindrical body caused by accumulated errors.

[0032] See Figure 3 and Figure 4As shown, in this embodiment, the heating assembly 20 includes a heating body 201 and a heating wire 202. The heating body 201 has a heating cavity 203 for placing the mold 50. The heating wire 202 is embedded in the heating body 201 and arranged in multiple rings around the heating cavity 203. A nickel alloy steel tube is sleeved on the outside of the heating wire 202, and the inside of the nickel alloy steel tube is filled with magnesium oxide insulating material. The joint of the heating wire 202 is insulated using ceramic embedding technology, which avoids the situation where a single heating wire melts or breaks due to external force, rendering it unusable. The multiple ring arrangement also allows the sample to be heated evenly. The heating body 201 is preferably made of aluminum, which can achieve rapid heating by utilizing the thermal conductivity of aluminum. The heating body 201 is also provided with a heat insulation layer (not shown in the figure), which is made of silicon-based aerogel. Silicon-based aerogel is lightweight, thin, easy to process, and has a low thermal conductivity, providing good heat insulation performance and effectively isolating high temperatures. Preferably, the heating element 201 is wrapped with a layer of silicon as a heat insulation layer to provide heat insulation and heat preservation.

[0033] See Figure 3 and Figure 4 As shown, in this embodiment, the heating body 201 is also provided with a positioning groove 204. The positioning groove 204 is located at the top of the heating cavity 203 and communicates with the heating cavity 203. The body 503 of the mold 50 has a positioning flange 504 that cooperates with the positioning groove 204 on its outside. The body 503 is placed in the heating cavity 203, and the positioning flange 504 is installed in the positioning groove 204. A flange is used to press the positioning flange 504 above it. Through the above settings, the mold 50 can be quickly positioned during installation and replacement, and the mold 50 can be effectively prevented from shifting.

[0034] See Figure 1 and Figure 2 As shown, in this embodiment, the fully automated integrated coal and rock sample preparation equipment also includes a base plate 60, which is spaced below the workbench 10. Support columns 70 connect the base plate 60 and the workbench 10. There are three support columns 70 arranged in a triangular pattern. The support columns 70 are made of aluminum. The triangular support arrangement of the three support columns 70 effectively ensures the stability and processing accuracy of the overall equipment, and reduces the probability of damage and the weight of the equipment. Of course, the number of support columns 70 can also be one, two, or more than three; this embodiment does not impose any limitations.

[0035] In this embodiment, the control system includes an intelligent controller (e.g., a PLC), a display screen, a timer, a pressure sensor, a temperature sensor, and a position sensor. The display screen, timer, pressure sensor, temperature sensor, and position sensor are respectively located in their respective positions and are all connected to the intelligent controller. When the coal sample preparation equipment is powered on, after being started with a single button, all mechanical actions are performed according to the set program. Guided by the signals from the timer, pressure sensor, temperature sensor, and position sensor, the equipment automatically completes the programmed operations in sequence until the sample is ejected from the coal sample preparation equipment. Example 2

[0036] See Figures 1 to 4 As shown, a fully automatic integrated coal and rock sample preparation device according to Embodiment 2 of this utility model will now be described. The only difference between this embodiment and Embodiment 1 is that a condenser pipe 80 is arranged around the outside of the mold 50, and the condenser pipe 80 is located inside the heating body 201. The condenser pipe 80 has a spiral structure, and cooling oil flows through it during operation, enabling uniform and rapid cooling of the sample. After cooling and shaping, the pressure driving mechanism 30 pushes the sample out of the sample preparation chamber 501. During sample preparation, the working temperature has reached the boiling point of water. If water cooling is used, high-pressure gas can easily be generated, posing a safety hazard. If air cooling is used, the cooling temperature is too low, making rapid shaping impossible. This embodiment uses a surrounding oil cooling method, which, compared with traditional water cooling and air cooling methods, is not only safer but also enables rapid cooling and shaping of the sample, greatly improving sample preparation efficiency.

[0037] The workflow of the above solution is as follows:

[0038] Add the mixed coal sample and embedding powder into the sample preparation chamber 501, start the equipment with one button, rotate the pressing cylinder to drive the pressure plate 41 to rotate and descend to close the feed port 502, and use the control system to precisely control the heating temperature and heating time to fully integrate the coal sample and embedding powder. Apply pressure through the preset telescopic cylinder of the control system, and the telescopic rod of the telescopic cylinder automatically rises to press the mixed raw materials into shape. Then, the sample is quickly cooled through the condenser pipe 80 to solidify the sample. After the sample is cooled and solidified, rotate the pressing cylinder to drive the pressure plate 41 to rise and rotate away from the feed port 502. At this time, the telescopic cylinder pushes the formed sample out of the sample preparation chamber 501. Example 3

[0039] See Figures 5 to 6As shown, a fully automatic integrated coal and rock sample preparation device provided in Embodiment 3 of this utility model will now be described. The difference between this embodiment and Embodiment 2 is only that: a pressure head 42 is connected to the side of the pressure plate 41 facing the mold 50. The pressure head 42 is used to close or open the feed port 502. A vibration motor 43 is provided between the pressure head 52 and the pressure plate 41. The vibration motor 43 is electrically connected to the control system. The pressure head 42 is driven by the vibration motor to generate vibration. Preferably, the vibration motor 43 is a flat vibration motor. After the sample cools, the vibration motor 43 operates, causing the pressure head 42 to vibrate, which facilitates the separation of the sample from the mold 50, thereby making it easier for the pressure driving mechanism 30 to push the sample out of the sample preparation chamber 501. Example 4

[0040] See Figures 5 to 6As shown, a fully automatic integrated coal and rock sample preparation device provided in Embodiment 4 of this utility model will now be described. The difference between this embodiment and Embodiment 3 is only that the coal sample preparation device further includes a stirring device, which includes a lifting platform 90, a first lifting drive mechanism 91, a rotating platform 92, a rotating drive mechanism 93, a stirring paddle 94, and a stirring drive mechanism 95. The first lifting drive mechanism 91 is mounted on the base plate 60 and is used to drive the lifting platform 90 to move up and down along the axial direction of the sample preparation chamber 501. The rotating drive mechanism 93 is mounted on the lifting platform 90 and is used to rotate and position the rotating platform 92. The stirring paddle 94 is used to stir the raw materials in the sample preparation chamber 501. The stirring drive mechanism 95 is mounted above the rotating platform 92 and is used to drive the stirring paddle 94 to rotate. The first lifting drive mechanism 91, the rotating drive mechanism 93, and the stirring drive mechanism 95 are electrically connected to the control system. In this embodiment, the lifting platform 90 includes a first platform 901 and a second platform 902. The first platform 901 is spaced above the second platform 902, and multiple columns 903 connect the two. The first lifting drive mechanism 91 is a cylinder, the cylinder body of which is vertically mounted above the base plate 60. The telescopic rod of the cylinder is connected below the second platform 902. The telescopic rod of the cylinder drives the lifting platform 90 to move up and down vertically through telescopic movement. The rotating platform 92 is located above the first platform 901 and is adjacent to the first platform. The rotary drive mechanism 93, connected by a rotating link 901, includes a first motor 931, a pinion 932, and a large gear 933. The main body of the first motor 931 is fixedly mounted above the second platform 902. The output shaft of the first motor 931 is connected to the pinion 932, and the rotation shaft of the rotary table 92 is connected to the large gear 933, which is located between the first platform 901 and the second platform 902. The pinion 932 and the large gear 933 mesh. The rotary table is rotated by controlling the start and stop of the first motor 931. 92. Rotation and positioning; The stirring paddle 94 includes a stirring shaft 941 and multiple blades 942, which are disposed at one end of the stirring shaft 941 and evenly arranged around the circumference of the stirring shaft 941. The stirring drive mechanism 95 includes a second motor 951, a first support arm 952, a first pulley 953, a second pulley 954, and a synchronous belt 955. The main body of the second motor 951 is vertically disposed above the rotating table 92. The output shaft of the second motor 951 is rotatably connected to one end of the first support arm 952. The output shaft of the machine 951 is located above the first support arm 952 and is connected to the first pulley 953, and can drive the first pulley 953 to rotate. The second pulley 954 is rotatably connected above the first support arm 952 and is spaced apart from the first pulley 953. The first pulley 953 and the second pulley 954 are connected by a synchronous belt 955. The cylinder, the first motor 931, and the second motor 951 are electrically connected to the control system, and the control system controls the lifting cylinder, the first motor 931, and the second motor 951 to move respectively.In the coal sample preparation process, after the raw materials are poured into the sample preparation chamber 501, the first motor 931 is started, causing the rotary table 92 to rotate and positioning the stirring paddle 94 above the sample preparation chamber 501; the first lifting drive mechanism 91 is started, causing the lifting table 90 to rise and fall to adjust the height of the stirring paddle 94, so that the stirring paddle 94 extends into the sample preparation chamber 501; the heating component 20 and the second motor 951 are started to heat and stir the raw materials, thereby quickly and evenly mixing the raw materials and shortening the sample preparation time; after the raw materials are evenly mixed, the second motor 951 and the heating component 20 are turned off, the stirring paddle 94 stops stirring, and the heating component 20 stops heating; the first motor 931 is started, causing the rotary table 92 to rotate and positioning the stirring paddle 94 away from the sample preparation chamber 501; the rotating pressing cylinder is started to seal the sample preparation chamber 501. After the sample is formed, the rotating pressing cylinder drives the pressure plate 41 to rise and rotate away from the feed port 502 to avoid interfering with the pressure driving mechanism 30 to push the sample out of the sample preparation chamber 501. Example 5

[0041] See Figures 5 to 6As shown, a fully automatic integrated coal and rock sample preparation device provided in Embodiment 5 of this utility model will now be described. The difference between this embodiment and Embodiment 4 is only that the coal sample preparation device further includes a feeding device 100, which includes a second support arm 1001, a second lifting drive mechanism 1002, a feeding cup 1003, and a tilting drive mechanism 1004. The second lifting drive mechanism 1002 and the tilting drive mechanism 1004 are electrically connected to the control system. The second lifting drive mechanism 1002 is disposed above the rotary table 92 and is used to drive the second support arm 1001 to move up and down along the axial direction of the sample preparation chamber 501. One end of the second support arm 1001 is connected to the lifting end of the second lifting drive mechanism 1002. The other end of the second support arm 1001 is provided with a funnel 1005 for introducing raw materials into the sample preparation chamber 501. The funnel 1005 is arranged along the axial direction of the sample preparation chamber 501. The height of the funnel 1005 can be finely adjusted by the second lifting drive mechanism 1002 to achieve funnels suitable for different specifications. The feeding cup 1003 is used to hold raw materials and is arranged on one side of the sample preparation chamber 501. The flipping drive mechanism 1004 is used to drive the feeding cup 1003 to flip so that the raw materials are poured into the funnel 1005. In this embodiment, a loading platform 1006 is provided above the base plate 60, and a flipping drive mechanism 1004 is installed on the loading platform 1006. The flipping drive mechanism 1004 is located on one side of the sample preparation chamber 501 through the loading platform 1006. A feeding cup 1003 is installed at the drive end of the flipping drive mechanism 1004. The second lifting drive mechanism 1002 adopts a lifting cylinder, and the flipping drive mechanism 1004 adopts a flipping cylinder.Before sample preparation, position the feeding cup 1003 with its opening facing upwards and pour the raw material into it. Activate the first lifting drive mechanism 91 to adjust the height of the lifting platform 90 so that the bottom of the funnel 1005 is higher than the top of the mold 50. After adjustment, close the first lifting drive mechanism 91. Activate the first motor 931 to control the rotary table 92 to rotate to the feeding position, aligning the bottom opening of the funnel 1005 with the sample preparation chamber 501. Close the first motor 931. Activate the second lifting drive mechanism 1002, which lowers the funnel 1005 via the second support arm 1001, allowing the bottom of the funnel 1005 to extend into the sample preparation chamber 501 to prevent the raw material from spilling out. After the funnel 1005 is in place, the second lifting drive mechanism 1002 is closed; the flipping drive mechanism 1004 is activated, causing the feeding cups 1003 to flip with their openings facing the funnel 1005 to pour the raw material into the funnel 1005. After the raw material enters the sample preparation chamber 501 through the funnel 1005, the flipping drive mechanism 1004 controls the feeding cups 1003 to flip in the opposite direction to reset the feeding cups 1003 (i.e., the openings of the feeding cups 1003 face upwards); the second lifting drive mechanism 1002 is activated, and the funnel 1005 is raised through the second support arm 1001 until the bottom of the funnel 1005 is away from the top of the mold 50, then the second lifting drive mechanism is closed. 1002; Start the first motor 931 to control the rotation of the rotary table 92, rotate the stirring paddle 94 to a position above the sample preparation chamber 501, then turn off the first motor 931; Start the first lifting drive mechanism 91 to raise and lower the lifting platform 90 to adjust the height of the stirring paddle 94, so that the stirring paddle 94 extends into the sample preparation chamber 501; Start the heating component 20 and the second motor 951 to heat and stir the raw materials; After the raw materials are evenly mixed, turn off the second motor 951 and the heating component 20; Start the first lifting drive mechanism 91, raise the lifting platform 90 so that the bottom of the stirring paddle 94 is away from the top of the mold 50, then turn off the first lifting drive mechanism 951. 1. Start the first motor 931 to rotate the rotary table 92, position the stirring paddle 94 away from the sample preparation chamber 501, and then turn off the first motor 931. Start the rotary pressing cylinder to seal the inlet 502 of the sample preparation chamber 501, then start the pressure driving mechanism 30 to press the raw material into shape. Then start the condenser pipe 80 to quickly cool and solidify the sample. After the sample has cooled and solidified, start the vibration motor 43 to separate the sample from the mold 50, and then turn off the vibration motor 43. Start the rotary pressing cylinder to drive the pressure plate 41 to rise and rotate away from the inlet 502, and then the pressure driving mechanism 30 pushes the formed sample out of the sample preparation chamber 501. Through the above settings, this utility model can realize automatic control of the sample preparation process, save labor costs, reduce operational risks, and make the test conditions more stable during the sample preparation process, which is conducive to improving sample quality and effectively improving sample preparation efficiency.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fully automated integrated coal and rock sample preparation device, characterized in that, include: A workbench, wherein the workbench is provided with a mold having a sample preparation cavity, and the sample preparation cavity has a material inlet and a pressure outlet at both ends; A heating assembly is disposed between the mold and the worktable; A pressure-driving mechanism is provided below the workbench. The power output end of the pressure-driving mechanism is provided with a tray fixture. The tray fixture extends into the sample preparation chamber through the pressure port and can move up and down along the sample preparation chamber. The end of the tray fixture near the inlet is connected to the tray holding the sample. A sealing drive mechanism is provided with a pressure plate at its power output end. The pressure plate protrudes from the upper surface of the mold and can rotate to close or open the feed port. The control system is electrically connected to the heating component, the pressure driving mechanism, and the sealing driving mechanism, respectively.

2. The fully automated integrated coal and rock sample preparation equipment according to claim 1, characterized in that, The mold includes a cylindrical body, and the body, the pressure plate, and the tray are all made of polytetrafluoroethylene polymer material.

3. The fully automated integrated coal and rock sample preparation equipment according to claim 1, characterized in that, The sealing drive mechanism includes a rotary pressing cylinder, which is disposed on one side of the worktable, and the piston rod of the rotary pressing cylinder is connected to one end of the pressure plate.

4. The fully automated integrated coal and rock sample preparation equipment according to claim 3, characterized in that, The workbench is provided with a clearance groove for the operation of the rotary downward cylinder.

5. The fully automated integrated coal and rock sample preparation equipment according to claim 1, characterized in that, The pressure driving mechanism includes a telescopic cylinder, and the tray fixture includes a columnar body. One end of the columnar body connected to the tray is provided with a mounting groove, and the other end of the columnar body is connected to the telescopic rod of the telescopic cylinder through a floating joint. The tray includes a support platform and a connecting column connected to the support platform. The connecting column is located below the support platform and is threadedly connected to the mounting groove.

6. The fully automated integrated coal and rock sample preparation equipment according to claim 1, characterized in that, The heating assembly includes a heating element and a heating wire. The heating element has a heating cavity for placing the mold, and the heating wire is embedded in the heating element and arranged in multiple rings around the heating cavity.

7. The fully automated integrated coal and rock sample preparation equipment according to claim 6, characterized in that, The heating wire is surrounded by a nickel alloy steel tube, and the inside of the nickel alloy steel tube is filled with magnesium oxide insulating material.

8. The fully automated integrated coal and rock sample preparation equipment according to claim 6, characterized in that, The heating element is provided with a heat insulation layer on the outside, and the heat insulation layer is made of silicone aerogel.

9. The fully automated integrated coal and rock sample preparation equipment according to claim 6, characterized in that, The mold is surrounded by condensation pipes, which are located inside the heating body.

10. The fully automated integrated coal and rock sample preparation equipment according to claim 1, characterized in that, It also includes a base plate, which is spaced apart below the workbench. Support columns connect the base plate and the workbench. There are three support columns, which are arranged in a triangular pattern.

Images