Automatic sampling and detecting device for precise sand casting core

Abstract

The utility model discloses an automatic sampling and detecting device for a precision sand casting core. The automatic sampling and detecting device comprises a box body, a sampling mechanism, a sample storage mechanism, a track and a stirring barrel, the box body is positioned on one side of the stirring barrel; the sampling mechanism communicates with the box body and the stirring barrel; the track is fixed at the bottom of the box body, and the sample storage mechanism is located on the track in the box body and connected with one end of the sampling mechanism; the sampling mechanism comprises a threaded rod, an auger, a motor I, a gear I, a motor II and a gear II; the end, away from the threaded rod, of the supporting rod is rotationally connected to the top of the rotary disc through a bearing. The two ends of the auger are rotationally connected to the inner side wall of the threaded rod through bearings, the motor I is fixed to one end of the threaded rod, and the output shaft is connected with one end of the auger; the gear II is rotationally connected to the side wall of the stirring barrel through a connecting sleeve. Through cooperation of the sampling mechanism and the sample storage mechanism, molding sand in the mixing drum can be sampled, and multiple groups of samples at different positions can be continuously taken for detection.

Description

Technical Field

[0001] The utility model belongs to the technical field of precision sand casting, and particularly relates to an automatic sampling and detection device for precision sand casting cores. Background Art

[0002] Casting sand is formed by molding sand in a specific mold, assembling the sand to form a cavity, pouring the casting material into the sand for casting, and separating the sand and the casting after cooling to obtain the product. The molding sand is composed of a variety of materials mixed in proportion, such as natural silica sand, clay, additives, water, water glass sand and other materials. In the process of stirring and mixing the materials, it is necessary to take samples and test the mixing conditions of the materials.

[0003] After searching, the prior art announcement number is CN218785169U, which is a new type of rotor sand mixer, including a casing, an upper end surface of the casing is provided with a discharge port, and the feed port is connected to a sand hopper; a bulking cone is arranged on the bottom end surface of the casing, and the bulking cone is connected to a connecting rod; the connecting rod is connected to a gearbox, and the gearbox is connected to a first motor; a scraper is arranged at the bottom of the bulking cone, and a reinforcing plate is arranged between the scraper and the bulking cone; high-efficiency rotors are arranged on both sides of the bulking cone, and the high-efficiency rotors extend out of the casing to connect to a driving mechanism; a sampling and detection mechanism is connected to the side wall of the lower part of the casing; the sampling and detection mechanism is connected to a PLC controller, and the PLC controller is respectively connected to the driving mechanism, the first motor and the gearbox; its processing process has the following disadvantages: when the sand material is sampled and detected by the sampling and detection mechanism, only the sand material at the side wall of the casing can be sampled and detected each time, so the mixing state of the sand material cannot be accurately determined.

[0004] After searching, the prior art announcement number CN218015586U is a sand sample mixing device for precision sand casting, which comprises a mixing mechanism and a sampling mechanism, and a sampling mechanism is arranged on one side of the mixing mechanism; the mixing mechanism comprises a mixing barrel, supporting legs, a stirring mechanism, a discharge hole, a rotating disk, a first motor, and gears, and the bottom of the mixing barrel is fixedly connected to a number of supporting legs; its processing process has the following disadvantages: the sand material at the side wall of the mixing barrel is sampled and tested each time, and a group of sand samples are taken out each time, and the sand samples cannot be sampled continuously. Summary of the invention

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an automatic sampling and testing device for precision sand casting cores. Through the cooperation of a sampling mechanism and a sample storage mechanism, the molding sand inside a mixing drum can be sampled, and multiple groups of samples at different positions can be continuously taken for testing.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] An automatic sampling and testing device for precision sand casting cores comprises a box, a sampling mechanism, a sample storage mechanism, a track, and a mixing drum; the box is located at one side of the mixing drum, and the sampling mechanism connects the box and the mixing drum; the track is fixed at the bottom of the box, and the sample storage mechanism is located on the track inside the box and is connected to one end of the sampling mechanism; after the molding sand is stirred and mixed in the mixing drum, the molding sand in the mixing drum is sampled by the sampling mechanism, and the taken molding sand samples are temporarily stored in the sample storage mechanism, and then the staff takes out the samples in the sample storage mechanism and tests them.

[0008] The sampling mechanism comprises a threaded rod, an auger, a motor I, a gear I, a motor II, and a gear II; a support rod is fixed at one end of the threaded rod, a feed port is provided at the top of the end of the threaded rod located in the mixing drum, and a discharge port is provided at the bottom of the end of the threaded rod located in the box; the end of the support rod away from the threaded rod is rotatably connected to the top of the sample storage mechanism through a bearing; both ends of the auger are rotatably connected to the inner wall of the threaded rod through bearings, the motor I is fixed to one end of the threaded rod, and the output shaft is connected to one end of the auger; the gear II is rotatably connected to the side wall of the mixing drum through a connecting sleeve, and the motor II is fixed to the inner side of the box On the wall, the output shaft is provided with gear I, gear I is meshed with gear II; the threaded rod is connected with gear II through a thread; motor II provides power to drive gear I to rotate, gear I drives gear II to rotate, gear II drives the threaded rod and the sample storage mechanism to move along the track through the thread, so that the threaded rod enters the inside of the mixing drum, so as to sample the molding sand inside the mixing drum; then motor I provides power to drive the auger to rotate, so as to transport the sample from the mixing drum to the sample storage drum, which is convenient for taking out the sample for testing, and can continuously take multiple groups of samples at different positions for testing.

[0009] The sample storage mechanism includes a moving block, a turntable, a sample storage cylinder, a rotating shaft, a groove wheel, a disc, a rotating rod, a mounting plate, and a motor III; a plurality of wheels are provided at the bottom of the moving block, and the gears are located inside the track; the turntable is rotatably connected to the top of the moving block, and a plurality of evenly distributed placement grooves are provided on the turntable; the sample storage cylinder is installed in the placement groove, and the sample storage cylinder corresponds to the discharge port on the threaded rod; the rotating shaft is rotatably connected to the moving block through a bearing, one end of which is located above the moving block and connected to the turntable, and the other end is located in a square groove below the moving block; the groove wheel is connected to one end of the rotating shaft located in the square groove; the disc is rotatably connected to the bottom of the moving block through a rotating shaft, and a rotating shaft on one side of the disc is connected to the rotating shaft. A gear III is provided on it, a rotating rod is fixedly mounted on the rotating shaft on the other side of the disc, a toggle rod is provided at the end of the rotating rod away from the disc, and the toggle rod is connected to the groove wheel; a mounting plate is fixed on the side wall of the moving block, a motor III is fixed on the mounting plate, and a gear IV is provided on the output shaft; gear III and gear IV are meshingly connected; motor III provides power to drive gear IV to rotate, gear IV drives the disc to rotate through gear III, the disc drives the rotating rod and the toggle rod to rotate, the toggle rod rotates to drive the groove wheel to rotate, the groove wheel drives the turntable to rotate through the rotating shaft, the turntable drives the sample storage cylinder to rotate, thereby rotating the empty sample storage cylinder to the bottom of the discharge port, and the sample is received and temporarily stored.

[0010] A symmetrical mounting groove is provided on the inner wall of the sample storage barrel, a push plate is provided at the bottom of the sample storage barrel, and a connecting rod is snap-connected in the mounting groove; one end of the connecting rod is connected to the push plate, and the other end passes through the top of the sample storage barrel and is provided with a handle; when the sample storage barrel and the sample are taken out of the box, the handle is pushed, and the handle drives the connecting rod and the push plate to move along the sample storage barrel, thereby facilitating the removal of the sample inside the sample storage barrel for testing.

[0011] A motor, a transmission shaft and an arc plate are provided at the feed port of the threaded rod; the motor is fixed inside the side wall of the threaded rod, the transmission shaft is rotatably connected to the side wall of the feed port through a bearing, and a pair of arc plates are symmetrically fixed on the transmission shaft; the motor provides power to drive the arc plate to rotate through the transmission shaft, and the arc plate drives the molding sand to enter the threaded rod through the feed port; when the feeding is completed, the arc plate is horizontally located at the feed port, thereby preventing the molding sand from entering the inside of the threaded rod when the threaded rod moves.

[0012] The side wall of the box is provided with an opening and closing door, which can facilitate the taking and placing of the sample storage tube and the convenient maintenance of the internal mechanism of the box.

[0013] A clamping mechanism is fixedly connected to one side of the sample storage mechanism; the clamping mechanism includes a support frame, an electric push rod, and a pressure hammer; the support frame is located on one side of the turntable, one end of which is connected to the moving block, and the other end extends above the turntable; the electric push rod is fixed to the end of the support frame located above the turntable, and the pressure hammer is fixed to the output end of the electric push rod and corresponds to the sample storage tube in the turntable placement slot; the electric push rod provides power to drive the pressure hammer to move downward, so that the pressure hammer compacts the molding sand sample in the sample storage tube.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1) In the sampling mechanism, motor II provides power to drive gear I to rotate, gear I drives gear II to rotate, and gear II drives the threaded rod and the sample storage mechanism to move along the track through the thread, so that the threaded rod enters the mixing drum, so that the molding sand inside the mixing drum can be sampled; then motor I provides power to drive the auger to rotate, so as to transport the sample from the mixing drum to the sample storage drum, which is convenient for taking out the sample for testing, and can continuously take multiple groups of samples at different positions for testing;

[0016] 2) Motor III in the sample storage mechanism provides power to drive gear IV to rotate, gear IV drives the disc to rotate through gear III, the disc drives the rotating rod and the toggle rod to rotate, the toggle rod rotates to drive the groove wheel to rotate, the groove wheel drives the turntable to rotate through the rotating shaft, the turntable drives the sample storage tube to rotate, so that the sample storage tube rotates to the bottom of the sampling mechanism to receive the sample and temporarily store it. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1This is a schematic diagram of the structure of an automatic sampling and testing device for precision sand casting cores. Figure 1 ;

[0018] Attached Figure 2 This is a schematic diagram of the structure of an automatic sampling and testing device for precision sand casting cores. Figure 2 ;

[0019] Attached Figure 3 Yes Figure 2 The enlarged structural diagram of the middle A part;

[0020] Attached Figure 4 This is a schematic diagram of the internal structure of an automatic sampling and testing device for precision sand casting cores of the utility model;

[0021] Attached Figure 5 This is a schematic diagram of the structure of the sample storage mechanism in the automatic sampling and detection device for precision sand casting cores of the utility model. Figure 1 ;

[0022] Attached Figure 6 This is a schematic diagram of the structure of the sample storage mechanism in the automatic sampling and detection device for precision sand casting cores of the utility model. Figure 2 ;

[0023] Attached Figure 7 It is a structural schematic diagram of a threaded rod in an automatic sampling and testing device for a precision sand casting core of the utility model;

[0024] Attached Figure 8 Yes Figure 7 A schematic diagram of the enlarged structure of the middle B part;

[0025] In the figure: 1, box body; 101, opening and closing door; 2, sampling mechanism; 201, threaded rod; 2011, feeding port; 20111, motor; 20112, transmission shaft; 20113, curved plate; 2012, discharging port; 2013, support rod; 202, auger; 203, motor I; 204, gear I; 205, motor II; 206, gear II; 3, sample storage mechanism; 301, moving block; 3011, square slot; 3012, wheel; 302 , turntable; 3021, placement slot; 303, sample storage tube; 3031, installation slot; 3032, push plate; 3033, connecting rod; 304, rotating shaft; 305, groove wheel; 306, disc; 3061, gear III; 307, rotating rod; 3071, toggle rod; 308, mounting plate; 309, motor III; 3091, gear IV; 4, clamping mechanism; 401, support frame; 402, electric push rod; 403, pressure hammer; 5, track; 6, mixing drum. DETAILED DESCRIPTION

[0026] To facilitate the understanding of those skilled in the art, Figure 1-8 , the technical solution of the utility model is further specifically described.

[0027] An automatic sampling and testing device for precision sand casting cores comprises a box 1, a sampling mechanism 2, a sample storage mechanism 3, a track 5, and a mixing drum 6; the box 1 is located at one side of the mixing drum 6, and the sampling mechanism 2 is connected to the box 1 and the mixing drum 6; the track 5 is fixed to the bottom of the box 1, and the sample storage mechanism 3 is located on the track 5 inside the box 1, and is connected to one end of the sampling mechanism 2; after the molding sand is stirred and mixed in the mixing drum 6, the molding sand in the mixing drum 6 is sampled by the sampling mechanism 2, and the taken molding sand sample enters the sample storage mechanism 3 for temporary storage, and then the staff takes out the sample in the sample storage mechanism 3 and tests it.

[0028] The sampling mechanism 2 includes a threaded rod 201, an auger 202, a motor I 203, a gear I 204, a motor II 205, and a gear II 206; a support rod 2013 is fixed at one end of the threaded rod 201; a feed port 2011 is provided at the top of one end of the threaded rod 201 located in the mixing drum 6, and a discharge port 2012 is provided at the bottom of one end located in the box body 1; the end of the support rod 2013 away from the threaded rod 201 is rotatably connected to the top of the sample storage mechanism 3 through a bearing; both ends of the auger 202 are rotatably connected to the inner wall of the threaded rod 201 through bearings, the motor I 203 is fixed to one end of the threaded rod 201, and the output shaft is connected to one end of the auger 202; the gear II 206 is rotatably connected to the side wall of the mixing drum 6 through a connecting sleeve; the motor II 2 05 is fixed on the inner wall of the box body 1, and the output shaft is provided with a gear Ⅰ204, and the gear Ⅰ204 is meshed and connected with the gear Ⅱ206; the threaded rod 201 is connected with the gear Ⅱ206 through a thread; the motor Ⅱ205 provides power to drive the gear Ⅰ204 to rotate, and the gear Ⅰ204 drives the gear Ⅱ206 to rotate, and the gear Ⅱ206 drives the threaded rod 201 and the sample storage mechanism 3 to move along the track through the thread, so that the threaded rod 201 enters the inside of the mixing drum 6, so that the molding sand inside the mixing drum 6 can be sampled; then the motor Ⅰ203 provides power to drive the auger 202 to rotate, so as to transport the sample from the mixing drum 6 to the sample storage drum 303, so as to facilitate the sample to be taken out for detection; the motor Ⅱ205 provides power to drive the gear Ⅰ204 to rotate.

[0029] The sample storage mechanism 3 includes a moving block 301, a turntable 302, a sample storage cylinder 303, a rotating shaft 304, a groove wheel 305, a disc 306, a rotating rod 307, a mounting plate 308, and a motor III 309; a plurality of wheels 3012 are provided at the bottom of the moving block 301, and the wheels 3012 are located inside the track 5; the turntable 302 is rotatably connected to the top of the moving block 301, and a plurality of evenly distributed placement slots 3021 are provided on the turntable 302; the sample storage cylinder 303 is installed on the placement In the groove 3021, the sample storage cylinder 303 corresponds to the discharge port 2012 on the threaded rod 201; the rotating shaft 304 is rotatably connected to the moving block 301 through a bearing, one end of which is located above the moving block 301 and connected to the turntable 302, and the other end is located in the square groove 3011 below the moving block 301; the groove wheel 305 is connected to one end of the rotating shaft 304 located in the square groove 3011; the disc 306 is rotatably connected to the bottom of the moving block 301 through a rotating shaft, and one side of the disc 306 The rotating shaft is provided with a gear III 3061, the rotating rod 307 is fixedly mounted on the rotating shaft on the other side of the disc 306, the end of the rotating rod 307 away from the disc 306 is provided with a toggle rod 3071, and the toggle rod 3071 is connected to the groove wheel 305; the mounting plate 308 is fixed on the side wall of the moving block 301, the motor III 309 is fixed on the mounting plate 308, and the output shaft is provided with a gear IV 3091; the gear III 3061 and the gear IV 3091 are meshed and connected; the motor III 309 provides The power drives gear IV 3091 to rotate, gear IV 3091 drives disc 306 to rotate through gear III 3061, disc 306 drives rotating rod 307 and toggle rod 3071 to rotate, the toggle rod 3071 rotates to drive the groove wheel 305 to rotate, the groove wheel 305 drives the turntable 302 to rotate through the rotating shaft 304, the turntable 302 drives the sample storage cylinder 303 to rotate, thereby rotating the empty sample storage cylinder 303 to the bottom of the discharge port 2012 to receive the sample.

[0030] A symmetrical mounting groove 3031 is provided on the inner wall of the sample storage barrel 303, a push plate 3032 is provided at the bottom of the sample storage barrel 303, and a connecting rod 3033 is snap-connected in the mounting groove 3031; one end of the connecting rod 3033 is connected to the push plate 3032, and the other end passes through the top of the sample storage barrel 303 and is provided with a handle; when the sample storage barrel 303 and the sample are taken out of the box body 1, the handle is pushed, and the handle drives the connecting rod 3033 and the push plate to move along the sample storage barrel 303, thereby facilitating the removal of the sample inside the sample storage barrel 303 for testing.

[0031] A motor 20111, a transmission shaft 20112 and an arc plate 20113 are provided at the feed port 2011 of the threaded rod 201; the motor 20111 is fixed inside the side wall of the threaded rod 201, the transmission shaft 20112 is rotatably connected to the side wall of the feed port 2011 through a bearing, and the arc plate is provided with a pair of symmetrically fixed on the transmission shaft 20112; the motor 20111 provides power to drive the arc plate 20113 to rotate through the transmission shaft 20112, and the arc plate 20113 drives the molding sand to enter the threaded rod 201 through the feed port 2011; when the feeding is completed, the arc plate 20113 is horizontally located at the feed port 2011, so as to prevent the molding sand from entering the inside of the threaded rod 201 when the threaded rod 201 moves.

[0032] The side wall of the box body 1 is provided with an opening and closing door 101 , which can facilitate the taking and placing of the sample storage tube 303 and the convenient maintenance of the internal mechanism of the box body 1 .

[0033] A clamping mechanism 4 is fixedly connected to one side of the sample storage mechanism 3; the clamping mechanism 4 includes a support frame 401, an electric push rod 402, and a pressure hammer 403; the support frame 401 is located on one side of the turntable 302, one end of which is connected to the moving block 301, and the other end extends above the turntable 302; the electric push rod 402 is fixed to one end of the support frame 401 located above the turntable 302, and the pressure hammer 403 is fixed to the output end of the electric push rod 402, and corresponds to the sample storage tube 303 in the placement groove of the turntable 302; the electric push rod 402 provides power to drive the pressure hammer 403 to move downward, so that the pressure hammer 403 compacts the molding sand sample in the sample storage tube 303.

[0034] An automatic sampling and testing device for precision sand casting cores has the following working process: after the molding sand is stirred and mixed in the mixing drum 6, the molding sand at different positions in the mixing drum 6 is sampled through the sampling mechanism 2, and the taken molding sand samples enter the sample storage mechanism 3 for temporary storage, and the electric push rod 402 provides power to drive the pressure hammer 403 to move downward, so that the pressure hammer 403 compacts the molding sand sample in the sample storage cylinder 303, and then the staff takes out the sample in the sample storage mechanism 3 and tests it.

[0035] To sum up, electronic or electrical components including but not limited to motors, motor I, motor II, motor III, electric push rods, etc. are components in the prior art, obtained through private customization or purchase, and the electrical connections between the components are conventional circuit connections or electrical connections in the prior art, and are not within the scope of protection of the present utility model.

[0036] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. An automatic sampling and detection device for precision sand casting cores, comprising a box, a sampling mechanism, a sample storage mechanism, a track, and a mixing drum; characterized in that The box is located on one side of the mixing drum, and the sampling mechanism is connected to the box and the mixing drum; the track is fixed at the bottom of the box, and the sample storage mechanism is located on the track inside the box and connected to one end of the sampling mechanism; The sampling mechanism comprises a threaded rod, an auger, a motor I, a gear I, a motor II, and a gear II; a support rod is fixed at one end of the threaded rod, a feed port is provided at the top of the end of the threaded rod located in the mixing drum, and a discharge port is provided at the bottom of the end of the threaded rod located in the box; an end of the support rod away from the threaded rod is rotatably connected to the top of the sample storage mechanism through a bearing; both ends of the auger are rotatably connected to the inner wall of the threaded rod through bearings, the motor I is fixed at one end of the threaded rod, and the output shaft is connected to one end of the auger; the gear II is rotatably connected to the side wall of the mixing drum through a connecting sleeve, the motor II is fixed on the inner wall of the box, the output shaft is provided with a gear I, and the gear I is meshed and connected with the gear II; the threaded rod is connected to the gear II through a thread; The sample storage mechanism includes a moving block, a turntable, a sample storage cylinder, a rotating shaft, a groove wheel, a disc, a rotating rod, a mounting plate, and a motor III; a plurality of wheels are arranged at the bottom of the moving block, and the gear is located inside the track; the turntable is rotatably connected to the top of the moving block, and a plurality of evenly distributed placement grooves are arranged on the turntable; the sample storage cylinder is installed in the placement groove, and the sample storage cylinder corresponds to the discharge port on the threaded rod; the rotating shaft is rotatably connected to the moving block through a bearing, one end of which is located above the moving block and connected to the turntable, and the other end is located in a square groove below the moving block; the groove wheel is connected to one end of the rotating shaft located in the square groove; the disc is rotatably connected to the bottom of the moving block through the rotating shaft, a gear III is arranged on the rotating shaft on one side of the disc, the rotating rod is fixedly mounted on the rotating shaft on the other side of the disc, a toggle rod is arranged at the end of the rotating rod away from the disc, and the toggle rod is connected to the groove wheel; the mounting plate is fixed on the side wall of the moving block, the motor III is fixed on the mounting plate, and a gear IV is arranged on the output shaft; the gear III is meshed with the gear IV.

2. The automatic sampling and detection device for precision sand casting cores according to claim 1 is characterized in that A symmetrical mounting groove is arranged on the inner wall of the sample storage tube, a push plate is arranged at the bottom of the sample storage tube, and a connecting rod is snap-connected in the mounting groove; one end of the connecting rod is connected to the push plate, and the other end passes through the top of the sample storage tube and is provided with a handle.

3. The automatic sampling and testing device for precision sand casting cores according to claim 1 is characterized in that A motor, a transmission shaft and an arc plate are arranged at the threaded rod feed port; the motor is fixed inside the side wall of the threaded rod, the transmission shaft is rotatably connected to the side wall of the feed port through a bearing, and a pair of arc plates are symmetrically fixed on the transmission shaft.

4. The automatic sampling and testing device for precision sand casting cores according to claim 1 is characterized in that A clamping mechanism is fixedly connected to one side of the sample storage mechanism; the clamping mechanism includes a support frame, an electric push rod, and a pressure hammer; the support frame is located on one side of the turntable, one end of which is connected to the moving block, and the other end extends above the turntable; the electric push rod is fixed to one end of the support frame above the turntable, and the pressure hammer is fixed to the output end of the electric push rod and corresponds to the sample storage tube in the turntable placement slot.

5. The automatic sampling and testing device for precision sand casting cores according to claim 1 is characterized in that An opening and closing door is arranged on the side wall of the box body.

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