Rock core sample splitting device for mineral exploration and drilling

By using positioning and fixing mechanisms to surround and fill the core, the problems of core breakage and debris splashing during cutting are solved, thus improving the integrity of the core and the accuracy of analysis.

CN121762297AInactive Publication Date: 2026-03-31HENAN FIFTH GEOLOGICAL SURVEY INST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-31
Publication Date
2026-03-31
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During mineral exploration, rock cores are prone to cracks, detachment, or unevenness during sampling and preservation, which can lead to breakage and debris splashing during cutting, affecting the integrity of the sample and the accuracy of analysis.

Method used

A core splitting device for mineral exploration drilling is used, which uses positioning and fixing mechanisms to surround and fill the core with filling material. The core is fixed by the isolation membrane and filling material, which reduces the splashing and breakage of debris during cutting and ensures the integrity of the core.

Benefits of technology

This improved the integrity and purity of the core samples during the cutting process, reduced the difficulty of cleaning up debris and filler, and ensured the accuracy of subsequent analyses.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of core drilling, in particular to a mineral exploration drilling core sample splitting device which comprises a fixing mechanism detachably connected with a moving table, the fixing mechanism comprises a box body, the box body is detachably connected with the moving table, two lantern rings are arranged in the box body, and sealing plates are fixedly connected in the two lantern rings in a sleeved mode. T-shaped guide grooves are formed in the centers of the adjacent sides of the two closing plates. According to the invention, the rock core is placed at the positioning mechanism, the rock core is fixed by the positioning mechanism, and the rock core is surrounded by the positioning mechanism, so that the fixing effect on the rock core is improved, the periphery of the rock core is coated with the filler by the fixing mechanism, and the rock core and the filler are cut by the cutting equipment; when the rock core with cracks or formed by splicing is slit, the situation that rock core chips splash during cutting can be reduced through the filler, the situation that the rock core is broken is reduced, even if the rock core is broken, the rock core can be limited to the original position by the filler, and the integrity of the slit rock core is improved.
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Description

Technical Field

[0001] This invention relates to the field of core drilling technology, specifically a core splitting device for mineral exploration drilling. Background Technology

[0002] Mineral exploration requires drilling to obtain core samples, which provide direct physical evidence of underground rocks to comprehensively understand geological structures, ore body characteristics, and resource potential. Core sampling directly reveals ore body information. By analyzing core samples, the burial depth, thickness, occurrence, spatial distribution, and mineral composition of the ore body can be accurately determined. At the same time, the ore grade and chemical composition can be determined, providing basic data for assessing resource reserves. Core analysis is usually carried out using the splitting method, which involves manually or mechanically splitting the core along its long axis into two or four parts. One or one-half of the core is taken as a sample for analysis, while the other part is sealed for later use. However, during the sampling process or subsequent storage, some core samples are prone to surface cracks, partial detachment of the surface layer which is then bonded with adhesive, and unevenness at both ends. When splitting core samples, it is usually necessary to fix the core. However, when fixing such cores with conventional methods, the stress generated during the cutting process can propagate along the cracks, causing further fracture at the cracks and resulting in debris flying off due to vibrations from the cutting. Furthermore, the stress and vibration during the cutting of cores that have detached and then reassembled can easily loosen the joint, leading to separation or breakage of the reassembled part from the main body. The rotating saw blade can also easily generate debris flying off, and the broken fragments can easily mix, resulting in impurities in the sample and affecting the accuracy of subsequent analyses. When cutting cores with uneven ends, some areas may protrude, which are difficult to fix. During sawing, uneven stress can easily cause breakage or detachment, making it difficult to maintain the integrity of the sample and causing considerable inconvenience. Summary of the Invention

[0003] The purpose of this invention is to provide a core splitting device for mineral exploration drilling to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A core splitting device for mineral exploration drilling includes a housing, with a movable platform slidably connected to the top surface of the housing. A column is fixedly connected to one side of the housing, and a main cylinder is fixedly connected to the top surface of the column. A cutting device is fixedly connected to the moving end of the main cylinder. A fixing mechanism for auxiliary core fixation and a positioning mechanism for core positioning are provided. The fixing mechanism is detachably connected to the moving platform. The fixing mechanism includes a housing, which is detachably connected to the moving platform. The housing has two collars inside, and a closed plate is fixedly fitted inside each collar. A T-shaped guide groove is opened at the center of each adjacent side of the two closed plates. The positioning mechanism is located between the two closed plates. The positioning mechanism includes two moving tubes, and a roller is provided between the two moving tubes. The two ends of the two moving tubes and the roller pass through the two guide grooves respectively, and the two moving tubes and the roller are located at the three ends of the same guide groove. A rotating shaft is rotatably connected between the two ends inside the two moving tubes, and a connecting hole is opened on each adjacent side of the two moving tubes. An isolation membrane is fixedly wrapped around the outer wall of each of the two rotating shafts. One end of the isolation membrane passes through an adjacent connecting hole and is fixedly bonded to the other connecting hole.

[0005] Furthermore, each of the two collars is provided with a guide rod on the opposite side, and multiple support rods are fixedly connected between the adjacent end of the two guide rods and the adjacent collar. Each of the two guide rods is fixedly connected with a sleeve at the opposite end. Rotating holes are opened at both ends of the box, and the two sleeves are respectively rotated and fitted into the two rotating holes.

[0006] Furthermore, both ends of the box are fixedly connected with internal threaded rings, and each of the two internal threaded rings is screwed with a first screw. The top of each of the two first screws is rotatably connected with a stop plate, and the outer wall of each of the two first screws is screwed with a nut.

[0007] Furthermore, the box body has two arc-shaped shells inside, and two collars are located between the two arc-shaped shells. The outer walls of the two arc-shaped shells are fixedly connected to a base plate. The bottom surface of the base plate has multiple sliding grooves. The bottom surface of the box body has multiple locking strips fixedly connected to it. The locking strips slide and engage with the adjacent sliding grooves. The inner walls of the two opposite sides of the box body are fixedly connected to a first cylinder. The movable ends of the two first cylinders are fixedly connected to the two arc-shaped shells respectively. The top of one arc-shaped shell is fixedly connected to multiple feed pipes. The top of the adjacent side of the two arc-shaped shells has a notch.

[0008] Furthermore, each of the two collars has a connecting pipe at its top, and the bottom ends of both connecting pipes penetrate the adjacent collars and are located inside the adjacent collars. Each of the two connecting pipes has a cylinder fixedly connected to its bottom end, and each of the two cylinders has a fixed pipe fixedly connected to one end. Each of the two connecting pipes has a funnel fixedly connected to its top end. Both cylinders have an open-end structure, and both cylinders and the top of the two funnels have cylindrical motors fixedly connected to their other ends. The motor shafts of the cylindrical motors are fixedly connected to augers, and the four augers are located inside the two connecting pipes and the two fixed pipes, respectively.

[0009] Furthermore, both ends of the idler roller and the two movable tubes are fixedly fitted with sleeve plates, and one end of each sleeve plate is rotatably connected to a support arm. The outer walls of the two guide rods are slidably fitted with movable cylinders, and the outer walls of the movable cylinders are rotatably connected to one end of the three adjacent support arms.

[0010] Furthermore, the outer walls of both guide rods are fixedly connected to support plates, and one side of each support plate is rotatably connected to a second screw. One end of each second screw penetrates one end of an adjacent sleeve. The outer walls of both movable cylinders are provided with protruding plates, and one side of each protruding plate is provided with a threaded hole. Both second screws are screwed into the adjacent threaded holes, and the outer walls of both second screws are screwed with nuts.

[0011] Furthermore, a cutting groove is provided in the middle of the outer wall of the idler roller. A fixing plate is fixedly connected to the center of the two closed plates on opposite sides, and a sleeve hole is provided in the center of the two fixing plates. The sleeve hole is located at the intersection of the three arms of the adjacent guide groove. The two fixing tubes are fixedly sleeved to the sleeve holes on the two fixing plates respectively. A positioning component is provided on the opposite side of the two closed plates. The positioning component includes three U-shaped guide rails. One end of each arm of the three U-shaped guide rails is fixedly connected to the outer wall of the adjacent fixing plate. The three U-shaped guide rails correspond one-to-one with the two moving tubes and the idler roller. A sliding plate is slidably engaged between the two arms of the U-shaped guide rails. A connecting hole is provided on one side of the sliding plate. The connecting hole is fixedly sleeved to the outer wall of the adjacent moving tube or the idler roller. A motor box is fixedly connected to one end of each of the two moving tubes. A drive motor is provided inside each of the two motor boxes. The motor shaft of the drive motor is fixedly connected to the end of the adjacent rotating shaft.

[0012] Furthermore, each of the two sealing plates is provided with a sealing assembly on opposite sides. The sealing assembly includes three take-up shafts, three auxiliary shafts, and three sealing belts. Side plates are rotatably sleeved at both ends of the three take-up shafts, and one end of each side plate is fixedly connected to the side wall of the adjacent sealing plate. Support plates are rotatably sleeved at both ends of the three auxiliary shafts, and one end of each support plate is fixedly connected to the side wall of the adjacent fixed plate. The three auxiliary shafts correspond one-to-one with the three take-up shafts. Circular holes are opened on one side of each of the three sealing belts. The three sealing belts correspond one-to-one with the three sliding plates on the adjacent positioning assembly, and the three sealing belts are fixedly bonded to one side of the corresponding sliding plate. The idler roller and the two moving tubes pass through the adjacent circular holes. The three sealing belts correspond one-to-one with the three take-up shafts. One end of the sealing belt passes through the adjacent U-shaped guide rail and is fixedly wound around the corresponding take-up shaft, and the other end passes through one side of the adjacent fixed plate and is fixedly wound around the corresponding auxiliary shaft.

[0013] Furthermore, each of the three secondary shafts is fixedly fitted with a bevel gear at both ends. The bevel gears on the secondary shafts at both ends mesh with the bevel gear on the secondary shaft in the middle. A connecting rod is provided between the winding shafts at both ends and the winding shaft in the middle. Universal joints are fixedly connected to both ends of the connecting rods. The universal joints at both ends of the connecting rods are fixedly connected to two adjacent winding shafts respectively. The enclosure assembly is equipped with two motor boxes, and each motor box contains a drive motor. The motor ends of the two drive motors are fixedly connected to one secondary shaft and one winding shaft respectively. Both motor boxes are fixedly connected to adjacent enclosure plates.

[0014] Compared with the prior art, the beneficial effects of the present invention are: By placing the core into the positioning mechanism and then using the positioning mechanism to fix and surround the core, the fixation effect of the core is improved. Then, the core is surrounded by filler material using the fixing mechanism. Finally, the core and filler material are cut using a cutting device. When cutting cores with cracks or those that are pieced together, the filler material can reduce the amount of core debris flying during cutting, thus reducing the possibility of core breakage. Even if the core itself breaks, it will be confined in place by the filler material, improving the integrity of the core after cutting.

[0015] By placing the core between two moving tubes and rollers, and between two isolation films, and then rotating the two second screws to drive the adjacent moving cylinders to move, the moving cylinders pull the moving tubes and rollers synchronously towards the fixed tubes to clamp the core. Then, the drive motor is started to drive the rotating shaft to rotate and roll up the isolation film, so that the isolation film rolls up to cover the core. For cores with cracks or spliced ​​together, the core can be completely covered and fixed. By starting the first cylinder, the arc-shaped shell moves towards the collar, causing the two arc-shaped shells to close and clamp the two collars, thus forming a closed space between the two collars. First, the filler, such as foundry sand, is fed into the space between the two isolation membranes through the connecting pipe and the fixed pipe. When the filler is fed in, the auger is driven by the cylindrical motor to rotate to facilitate the delivery of the filler. The filler can contact both ends of the core. Then, the filler is fed into the arc-shaped shell through the feed pipe, so that the filler fills the space between the two arc-shaped shells and the core, thus wrapping the core completely. The core surface is separated from the filler by the isolation membrane. Then, the filler and the core are cut by the cutting equipment. After cutting, the filler is removed manually. Due to the isolation membrane, the adhesion between the filler and the core is reduced, making it easier to clean the filler. When filling the arc-shaped shell with filler, the drive motor is started to drive the adjacent take-up shaft or sub-shaft to rotate. The take-up shaft is driven by the universal joints on the two linkages, so that the three take-up shafts on the sealing assembly rotate synchronously to wind up the sealing tape. The three sub-shafts on the sealing assembly rotate synchronously to wind up the sealing tape through the bevel gear drive. This makes the sealing tape cover the gaps in the guide groove, reducing the leakage of filler from the gaps in the guide groove. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the box body and the moving platform structure in this invention; Figure 3 This is a schematic diagram of the fixing mechanism and positioning mechanism in this invention; Figure 4 This is the present invention. Figure 3 Enlarged view of a portion of point A in the middle; Figure 5 This is the present invention. Figure 3 Enlarged view of a section at point B in the middle; Figure 6 This is a cross-sectional schematic diagram showing the positional relationship between the isolation membrane and the moving tube in this invention; Figure 7 This is a schematic diagram of the rotating cylinder, moving cylinder, and sleeve structure in this invention; Figure 8 This is a schematic diagram of the cross-sectional structure of the connecting pipe and the fixing pipe in this invention; Figure 9 This is a schematic diagram of the planar structure of the closed component in this invention; Figure 10 This is a schematic diagram of the closed component structure in this invention.

[0017] In the diagram: 100, housing; 110, moving table; 200, column; 210, cutting equipment; 300, fixing mechanism; 310, box body; 311, internal threaded ring; 312, first screw; 313, abutment plate; 320, arc-shaped shell; 321, bottom plate; 322, first cylinder; 323, feed pipe; 330, collar; 340, guide rod; 341, sleeve; 342, second screw; 350, sealing plate; 351, fixing plate; 3 60. Connecting pipe; 361. Cylinder; 362. Fixed pipe; 363. Screwdriver; 400. Positioning mechanism; 401. Motor box; 410. Moving pipe; 411. Rotating shaft; 412. Isolation membrane; 413. Motor box; 420. Idler roller; 430. Sleeve plate; 431. Support arm; 440. Moving cylinder; 450. U-shaped guide rail; 451. Sliding plate; 452. Sealing belt; 460. Rewinding shaft; 461. Sub-shaft; 462. Connecting rod. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-10 In this embodiment of the invention, a core splitting device for mineral exploration drilling includes a housing 100, with a movable platform 110 slidably connected to the top surface of the housing 100. A column 200 is fixedly connected to one side of the housing 100, and a main cylinder is fixedly connected to the top surface of the column 200. A cutting device 210 is fixedly connected to the moving end of the main cylinder. The device includes: A fixing mechanism 300 for auxiliary core fixation and a positioning mechanism 400 for core positioning are provided. The fixing mechanism 300 is detachably connected to the moving stage 110. The fixing mechanism 300 includes a housing 310, which is detachably connected to the moving stage 110. Two collars 330 are provided inside the housing 310, and a closing plate 350 is fixedly fitted inside each of the two collars 330. A T-shaped guide groove is provided at the center of each adjacent side of the two closing plates 350. The positioning mechanism 400 is located between the two closing plates 350 and includes two... A movable tube 410 is provided, and a roller 420 is provided between two movable tubes 410. The two ends of the two movable tubes 410 and the roller 420 respectively pass through two guide grooves, and the two movable tubes 410 and the roller 420 are located at the three ends of the same guide groove. A rotating shaft 411 is rotatably connected between the two ends inside the two movable tubes 410, and a connecting hole is opened on the adjacent side of the two movable tubes 410. An isolation film 412 is fixedly wrapped around the outer wall of the two rotating shafts 411. One end of the isolation film 412 passes through an adjacent connecting hole and is fixedly bonded to the other connecting hole.

[0020] Specifically, the core sample is fixed to the moving table 110 using the fixing mechanism 300 and the positioning mechanism 400. Then, the main cylinder is activated to drive the cutting device 210 to move downwards and contact the core sample. The moving table 110 is then moved to move the core sample, thereby splitting the core sample. When fixing the core sample to the moving table 110, one end of the isolation film 412 is pulled out from the inside of the adjacent moving tube 410 and then adhered to the inside of the connecting hole on the other moving tube 410 using adhesive, so that the two isolation films 412 form two layers of film between the two moving tubes 410. Then, the core sample is placed above the roller 420 and between the two moving tubes 410, with the core sample positioned between the two layers of film formed by the two isolation films 412, so that the two isolation films 412 wrap around the core sample. Then, the two moving tubes 410 and the roller 420 are moved synchronously towards the center of the closing plate 350, while the rotating shaft 411 is rotated to wind up the sample. The isolation membrane 412 allows the two moving tubes 410 and the roller 420 to clamp the core, and the two isolation membranes 412 are tightened and attached to the core to surround it. The roller 420 is located outside the two isolation membranes 412, thereby using the isolation membranes 412 to surround and fix the core, improving the fixing effect of the core. When fixing some cores with surface cracks, the two isolation membranes 412 can be placed on the outside of the core to hold the core in place and assist in fixing the core, reducing the possibility of the core breaking due to pressure during fixing and clamping. When fixing some cores with surface detachment, the detached part of the core can be spliced ​​with the core gap and then covered and fixed with the two isolation membranes 412 to keep the detached part of the core stable with the core body. Then, the core is cut as a whole using the cutting equipment 210, which facilitates subsequent core analysis and evaluation. The isolation membrane 412 can be made of soft materials such as plastic and nylon. Example 1

[0021] like Figures 1-4 and Figure 7 As shown, in this embodiment, guide rods 340 are provided on opposite sides of the two collars 330, and multiple support rods are fixedly connected between the adjacent ends of the two guide rods 340 and the adjacent collars 330. Sleeves 341 are fixedly connected to opposite ends of the two guide rods 340. Rotating holes are opened at both ends of the box body 310, and the two sleeves 341 are respectively rotatably fitted into the two rotating holes. Internal threaded rings 311 are fixedly connected to both ends of the box body 310, and first screws 312 are screwed into the two internal threaded rings 311. The top ends of the two first screws 312 are rotatably connected to abutment plates 313, and nuts are screwed into the outer walls of the two first screws 312.

[0022] In this embodiment, the collar 330 is fixed by the support rod and the guide rod 340, and the collar 330 and the guide rod 340 are supported inside the box 310 by the sleeve 341. After the core is clamped by the two moving tubes 410 and the roller 420, the two collars 330, the two moving tubes 410 and the roller 420 can be rotated synchronously by rotating any sleeve 341, thereby adjusting the position of the core being cut by the cutting device 210. Then, the two first screws 312 are rotated to drive the abutment plate 313 to abut against the sleeve 341 for fixation. The edge of the sleeve 341 and the outer layer of the abutment plate 313 are provided with abrasive material to improve friction. Then, the nut on the first screw 312 is screwed on to abut against the inner thread ring 311 to fix the first screw 312.

[0023] like Figure 1-5 and Figures 7-8 As shown, in this embodiment, the box body 310 has two arc-shaped shells 320 inside, and two collars 330 are located between the two arc-shaped shells 320. A base plate 321 is fixedly connected to the outer wall of each of the two arc-shaped shells 320. Multiple sliding grooves are formed on the bottom surface of the base plate 321. Multiple retaining strips are fixedly connected to the inner bottom surface of the box body 310, and these strips slide into adjacent sliding grooves. A first cylinder 322 is fixedly connected to each of the two opposite inner sidewalls of the box body 310, and the movable ends of the two first cylinders 322 are respectively connected to the two arc-shaped shells 320. A curved shell 320 is fixedly connected. Multiple feed pipes 323 are fixedly connected to the top of one curved shell 320. Notches are opened on the top of adjacent sides of two curved shells 320. Connecting pipes 360 are provided at the top of two collars 330, and the bottom ends of both connecting pipes 360 penetrate the adjacent collars 330 and are located inside the adjacent collars 330. A cylinder 361 is fixedly connected to the bottom end of each connecting pipe 360, and a fixing pipe 362 is fixedly connected to one end of each cylinder 361. The top ends of both connecting pipes 360 are fixedly connected to... The device is equipped with funnels. Both cylinders 361 are open at one end, and cylindrical motors are fixedly connected to the other end of each cylinder 361 and the top of each funnel. The motor shafts of the cylindrical motors are fixedly connected to augers 363. Four augers 363 are located inside the two connecting pipes 360 and the two fixed pipes 362, respectively. Sleeves 430 are fixedly sleeved at both ends of the roller 420 and the two moving pipes 410. Support arms 431 are rotatably connected to one end of each sleeve 430. Moving cylinders are slidably sleeved on the outer walls of the two guide rods 340. 440, the outer wall of the movable cylinder 440 is rotatably connected to one end of the three adjacent support arms 431. The outer walls of the two guide rods 340 are fixedly connected to support plates, and the two support plates are rotatably connected to one side of the second screw 342. One end of the two second screws 342 passes through one end of the adjacent sleeve 341. The outer walls of the two movable cylinders 440 are provided with protruding plates, and the two protruding plates are provided with threaded holes on one side. The two second screws 342 are screwed into the adjacent threaded holes, and the outer walls of the two second screws 342 are screwed with nuts.

[0024] In practice, two people manually and synchronously rotate two second screws 342 at the box body 310, causing the second screws 342 to drive the moving cylinder 440 to move. The moving cylinder 440, through adjacent support arms 431, drives two moving tubes 410 and rollers 420 to move synchronously towards or away from each other, thereby controlling the positions of the moving tubes 410 and rollers 420. After the positions of the moving tubes 410 and rollers 420 are fixed, the nuts are screwed into contact with the end face of the sleeve 341 to fix the position of the second screws 342. After the core is clamped by the moving tubes 410 and rollers 420 and the core is covered by two isolation membranes 412, the two first cylinders 322 can be activated to drive the adjacent arc-shaped shells 320 to move towards the two collars 330, so that the two arc-shaped shells 320... Two collars 330 are clamped together, and two arc-shaped shells 320 are closed into a cylindrical shape, thus forming a closed space between the two collars 330. The core, held by the rollers 420 and the moving pipe 410, naturally aligns its ends with the two fixed pipes 362. Then, by starting the cylindrical motor, the adjacent augers 363 rotate, and fillers such as foundry sand are fed into the connecting pipe 360. The fillers are then transported by the augers 363 inside the connecting pipe 360 ​​to the inside of the cylinder 361, and then by the augers 363 inside the fixed pipe 362 to the space between the two isolation membranes 412. During the filling process, vibration can be generated by manually tapping the arc-shaped shells 320, or the box 310 can be placed on a vibration table to assist in compacting the internal fillers, thereby ensuring the two isolation membranes 412 are properly aligned. 2. The internal space is filled with filler material, and both ends of the core are in contact with the filler material. Then, the filler material is fed into the arc-shaped shell 320 through the feed pipe 323, so that the space between the two arc-shaped shells 320 and the core is filled with filler material, thereby fixing the core completely inside the filler material. Then, the box 310 is transported to the moving platform 110 and fixed to the moving platform 110. When cutting the core that originally had cracks or was pieced together with the main body, the cutting device 210 is moved down and cuts the filler material, the isolation membrane 412 and the core together through two notches. The movable moving platform 110 moves the box 310 to cut the core, so that when the core is cut, the surrounding filler material resists it, and the core is cut. Both ends of the core are filled with a backing material, reducing vibration and improving cutting accuracy. During cutting, the backing material helps to hold together any fragments that occur, facilitating subsequent processing and improving the core's integrity. If the core is fragile, the backing material can also confine the broken pieces, further enhancing the core's integrity. During cutting, the presence of a certain thickness of backing material beneath the core ensures the saw blade cuts into the core without completely severing the backing material. After cutting, the first cylinder 322 is activated to disengage the arc-shaped shell 320 from the collar 330, allowing for manual removal of the backing material.Because the release membrane 412 acts as a barrier between the filler and the core, only the two ends of the core are in direct contact with the filler. This prevents the filler from adhering to the core surface, making subsequent cleaning of the filler much easier. In this embodiment, a servo motor can also be installed inside the sleeve 341, and the motor shaft of the servo motor can be connected to the second screw 342. Then, the two servo motors can be controlled by a synchronous controller to drive the two second screws 342 to rotate synchronously. The specific method can be selected by the user according to their needs. In this embodiment, the filler can be foundry sand, which is a material used in the foundry industry to manufacture sand molds or sand cores. The specific particle size and material can be selected as needed.

[0025] like Figures 6-7 and Figures 9-10 As shown, in this embodiment, a cutting groove is provided in the middle of the outer wall of the idler roller 420. A fixing plate 351 is fixedly connected to the center of each of the two closed plates 350 on opposite sides. Each fixing plate 351 has a sleeve hole at its center, located at the intersection of the three arms of adjacent guide grooves. Two fixing tubes 362 are respectively fixedly sleeved into the sleeve holes on the two fixing plates 351. A positioning assembly is provided on the opposite side of each of the two closed plates 350. The positioning assembly includes three U-shaped guide rails 450, with one end of each arm of the three U-shaped guide rails 450 connected to the adjacent fixed plate. The outer wall of the fixed plate 351 is fixedly connected, and three U-shaped guide rails 450 correspond one-to-one with two moving tubes 410 and rollers 420 respectively. Sliding plates 451 are slidably engaged between the two arms of the U-shaped guide rails 450. A connecting hole is opened on one side of the sliding plate 451, and the connecting hole is fixedly sleeved with the outer wall of the adjacent moving tube 410 or roller 420. A motor box 413 is fixedly connected to one end of each of the two moving tubes 410, and a drive motor is installed inside each of the two motor boxes 413. The motor shaft of the drive motor is connected to the end of the adjacent rotating shaft 411. The two sealing plates 350 are fixedly connected, and each sealing component is provided on one side opposite to the other. The sealing component includes three take-up shafts 460, three auxiliary shafts 461, and three sealing strips 452. Side plates are rotatably sleeved at both ends of the three take-up shafts 460, and one end of each side plate is fixedly connected to the side wall of the adjacent sealing plate 350. Support plates are rotatably sleeved at both ends of the three auxiliary shafts 461, and one end of each support plate is fixedly connected to the side wall of the adjacent fixed plate 351. The three auxiliary shafts 461 correspond one-to-one with the three take-up shafts 460. Each of the three sealing strips 452 has a sealing component on one side. A circular hole is provided. Three sealing strips 452 correspond one-to-one with three sliding plates 451 on the adjacent positioning components. Each of the three sealing strips 452 is fixedly bonded to one side of the corresponding sliding plate 451. The roller 420 and two moving tubes 410 pass through the adjacent circular hole. Each of the three sealing strips 452 corresponds one-to-one with three take-up shafts 460. One end of the sealing strip 452 passes through the adjacent U-shaped guide rail 450 and is fixedly wound around the corresponding take-up shaft 460. The other end passes through one side of the adjacent fixed plate 351 and is fixedly wound around the corresponding auxiliary shaft 461.

[0026] In practice, the controller starts the drive motor, which drives the rotating shaft 411 to wind up the isolation film 412. The drive motor is equipped with a mechanical braking device so that the motor shaft does not rotate when the drive motor is not started. The moving tube 410 and the roller 420 are limited by the U-shaped guide rail 450 and the sliding plate 451, so that the moving tube 410 and the roller 420 always remain parallel to each other. When it is necessary to put filler into the arc shell 320, the sealing tape 452 can be wound up by the winding shaft 460 and the auxiliary shaft 461, so that the sealing tape 452 is straightened and naturally seals the gap of the guide groove on the sealing plate 350, reducing the occurrence of filler falling from the gap of the guide groove. The sealing tape 452 can be made of materials such as leather, so that the sealing tape 452 is not easily deformed and is not easily broken. Example 2

[0027] Based on Embodiment 1, the bevel gear and connecting rod 462 are provided to facilitate the winding shaft 460 and the auxiliary shaft 461 in winding the closed tape 452.

[0028] like Figures 9-10 As shown, in this embodiment, bevel gears are fixedly sleeved at both ends of the three secondary shafts 461. The bevel gears on the secondary shafts 461 at both ends mesh with the bevel gear on the secondary shaft 461 in the middle. A connecting rod 462 is provided between the winding shafts 460 at both ends and the winding shaft 460 in the middle. Universal joints are fixedly connected to both ends of the connecting rod 462. The universal joints at both ends of the connecting rod 462 are fixedly connected to two adjacent winding shafts 460 respectively. The enclosure assembly is equipped with two motor boxes 401, and each of the two motor boxes 401 is equipped with a drive motor. The motor ends of the two drive motors are fixedly connected to one secondary shaft 461 and one winding shaft 460 respectively. Both motor boxes 401 are fixedly connected to adjacent enclosure plates 350.

[0029] In practical implementation, all drive motors are equipped with mechanical braking devices to ensure that the motor end will not rotate when not started. After the moving tube 410 and the idler roller 420 move, the two drive motors can be started to drive the adjacent take-up shaft 460 and the sub-shaft 461 to rotate. The sub-shaft 461 drives the three sub-shafts 461 to rotate synchronously through bevel gear transmission to wind up the sealing tape 452. The take-up shaft 460 drives the three take-up shafts 460 to rotate synchronously through the universal joints on the two connecting rods 462 to wind up the sealing tape 452. This allows the sealing tape 452 to seal the gaps in the guide grooves on the sealing plate 350, reducing the occurrence of filler falling from the gaps in the guide grooves. The sealing tape 452 can be made of materials such as leather, making the sealing tape 452 less prone to deformation and breakage.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A core splitting device for mineral exploration drilling, comprising a housing (100), wherein a movable platform (110) is slidably connected to the top surface of the housing (100), a column (200) is fixedly connected to one side of the housing (100), and a main cylinder is fixedly connected to the top surface of the column (200), wherein a cutting device (210) is fixedly connected to the movable end of the main cylinder, characterized in that, Include: Fixed mechanism (300), with the mobile station (110) is detachable connection, the fixed mechanism (300) includes box body (310), and box body (310) is detachable connection with mobile station (110), the box body (310) inside is provided with two collars (330), and two collars (330) inside are fixedly sleeved with closure plate (350), two the closure plate (350) adjacent side center is equipped with T-shaped guide slot; Positioning mechanism (400), located between two closure plates (350), the positioning mechanism (400) includes two moving pipes (410), and two moving pipes (410) are provided with a plurality of supporting rollers (420), two the moving pipe (410) and the both ends of supporting roller (420) are respectively penetrated through two guide slots, and two moving pipes (410) and supporting roller (420) are respectively located at three end portions of the same guide slot, two the moving pipe (410) inside both ends are rotatably connected with shaft (411), and two moving pipes (410) adjacent side are equipped with communication hole, two the outer side wall of shaft (411) is fixedly wound with isolation film (412), and the isolation film (412) one end is penetrated through adjacent one communication hole and is fixedly bonded with another communication hole.

2. The mineral exploration coring split-sampling device of claim 1, wherein, Two the collar (330) is away from the side is equipped with guide rod (340), and two guide rods (340) adjacent end and adjacent collar (330) between are fixedly connected with a plurality of supporting rods, two the guide rod (340) is away from the end is fixedly connected with sleeve (341), the both ends of box body (310) are equipped with rotation hole, and two sleeve (341) are respectively rotationally sleeved in two rotation holes.

3. A mineral exploration coring split-sampling device according to claim 2, characterised in that, The both ends of box body (310) are fixedly connected with internal thread ring (311), and the first screw rod (312) is screwed in the inside of two internal thread rings (311), two the top of first screw rod (312) is rotatably connected with the resistance plate (313), and the nut is screwed on the outer side wall of two first screw rods (312).

4. A mineral exploration coring split-sampling device according to claim 2 or 3, characterised in that, The outer side wall of supporting roller (420) is equipped with cutting slot in the middle, two the fixed plate (351) is fixedly connected with the closure plate (350) away from the side center, and the sleeve hole is equipped in the center of two fixed plates (351), the sleeve hole is located at the three-arm intersection of adjacent guide slot, two the closure plate (350) is provided with positioning assembly away from the side, the positioning assembly includes: Three U-shaped guide rails (450), both arms of which are fixedly connected with the outer side walls of adjacent fixed plates (351), and the three U-shaped guide rails (450) correspond to two moving pipes (410) and carrier rollers (420) one by one, sliding plates (451) are slidingly connected between the two arms of the U-shaped guide rail (450), a connecting hole is formed in one side of the sliding plate (451), the connecting hole is fixedly sleeved with the outer side wall of the adjacent moving pipe (410) or carrier roller (420), and one end of each of the two moving pipes (410) is fixedly connected with a motor box (413), and a drive motor is arranged in each of the two motor boxes (413), and the motor shaft of the drive motor is fixedly connected with the end of the adjacent rotating shaft (411).

5. The mineral exploration coring split-sampling device of claim 4, wherein, The carrier roller (420) and the two moving pipes (410) are fixedly sleeved with sleeve plates (430) at both ends, the sleeve plates (430) are rotatably connected with supporting arms (431) at one end, the outer side walls of the two guide rods (340) are slidingly sleeved with moving cylinders (440), and the outer side walls of the moving cylinders (440) are rotatably connected with one end of the adjacent three supporting arms (431).

6. The mineral exploration coring split-sampling device of claim 5, wherein, The outer side walls of the two guide rods (340) are fixedly connected with supporting plates, and the supporting plates are rotatably connected with second screws (342) on one side, the ends of the two second screws (342) penetrate through one end of the adjacent sleeve (341), the outer side walls of the two moving cylinders (440) are provided with protruding plates, and threaded holes are formed in one side of the two protruding plates, the two second screws (342) are screwed with the adjacent threaded holes, and nuts are screwed on the outer side walls of the two second screws (342).

7. The mineral exploration coring split-sampling device of claim 4, wherein, The opposite sides of the two closing plates (350) are provided with closing assemblies, the closing assembly comprises: Three winding shafts (460) rotatably sleeved with side plates at both ends, and the side plates are fixedly connected with the side walls of the adjacent closing plates (350) at one end; Three auxiliary shafts (461) rotatably sleeved with supporting plates at both ends, and the supporting plates are fixedly connected with the side walls of the adjacent fixed plates (351) at one end, and the three auxiliary shafts (461) correspond to the three winding shafts (460) one by one; Three closing belts (452) having circular holes formed on one side, the three closing belts (452) correspond to the three sliding plates (451) on the adjacent positioning assembly one by one, and the three closing belts (452) are fixedly bonded on one side of the corresponding sliding plate (451), the carrier roller (420) and the two moving pipes (410) penetrate through the adjacent circular holes, the three closing belts (452) correspond to the three winding shafts (460) one by one, one end of the closing belt (452) penetrates through the adjacent U-shaped guide rail (450) and is fixedly wound with the corresponding winding shaft (460), and the other end penetrates through one side of the adjacent fixed plate (351) and is fixedly wound with the corresponding auxiliary shaft (461).

8. The mineral exploration coring split-sampling device of claim 7, wherein, Both ends of the three auxiliary shafts (461) are fixedly sleeved with bevel gears, the bevel gears on the two ends of the auxiliary shaft (461) are in mesh with the bevel gears on the middle auxiliary shaft (461), the connecting rods (462) are arranged between the two ends of the winding shaft (460) and the middle winding shaft (460), the two ends of the connecting rod (462) are fixedly connected with universal joints, the universal joints at the two ends of the connecting rod (462) are fixedly connected with two adjacent winding shafts (460) respectively, the two motor boxes (401) are arranged in pairs, the driving motors are arranged in the two motor boxes (401), the motor ends of the two driving motors are fixedly connected with an auxiliary shaft (461) and a winding shaft (460) respectively, and the two motor boxes (401) are fixedly connected with adjacent sealing plates (350).

9. The mineral exploration coring split-sampling device of claim 1, wherein, Both ends of the three auxiliary shafts (461) are fixedly sleeved with bevel gears, the bevel gears on the two ends of the auxiliary shaft (461) are in mesh with the bevel gears on the middle auxiliary shaft (461), the connecting rods (462) are arranged between the two ends of the winding shaft (460) and the middle winding shaft (460), the two ends of the connecting rod (462) are fixedly connected with universal joints, the universal joints at the two ends of the connecting rod (462) are fixedly connected with two adjacent winding shafts (460) respectively, the two motor boxes (401) are arranged in pairs, the driving motors are arranged in the two motor boxes (401), the motor ends of the two driving motors are fixedly connected with an auxiliary shaft (461) and a winding shaft (460) respectively, and the two motor boxes (401) are fixedly connected with adjacent sealing plates (350).

10. The mineral exploration coring split-sampling device of claim 9, wherein, The box body (310) is internally provided with two arc-shaped shells (320), and the two sleeve rings (330) are located between the two arc-shaped shells (320), the outer side walls of the two arc-shaped shells (320) are fixedly connected with bottom plates (321), a plurality of sliding grooves are formed in the bottom surfaces of the bottom plates (321), a plurality of clamping strips are fixedly connected to the inner bottom surface of the box body (310), the clamping strips are slidably clamped in the adjacent sliding grooves, the two opposite inner side walls of the box body (310) are fixedly connected with first air cylinders (322), the movable ends of the two first air cylinders (322) are fixedly connected with the two arc-shaped shells (320) respectively, a plurality of feeding pipes (323) are fixedly connected to the top of one arc-shaped shell (320), and notches are formed in the top of the adjacent side of the two arc-shaped shells (320).