Testing system and working method for metal riot-proof box casting materials

Abstract

The present invention relates to the technical field of casting materials, and in particular to a testing system for casting materials of a metal riot-proof box and a working method thereof, comprising a support platform, a turntable, a test assembly, a transport unit, a collection box and a test platform, wherein the transport unit is used to continuously transport molding sand blocks to the support platform; a support column is fixedly connected to the upper end of the support platform, and the upper end of the support column is rotatably connected to the turntable, and the test assembly is provided with at least three groups and respectively arranged on the outer side of the turntable, and the turntable drives the three groups of test assemblies to pass through the transport unit, the test platform and the collection box in sequence; the test assembly includes a protective cover, and a liftable pressure plate is slidably matched on the inner side of the protective cover, and a pair of support plates that can be hinged and opened and closed are arranged on the lower side of the pressure plate, and the pair of support plates are combined to clamp the molding sand block to be tested, and the pressure plate applies pressure to the molding sand block for testing. The present invention realizes the automatic testing function conveniently and efficiently.

Description

Technical Field

[0001] The invention relates to the technical field of casting materials, and in particular to a testing system for casting materials of metal riot-proof boxes and a working method thereof. Background Art

[0002] Casting is a process of melting metal into a liquid that meets certain requirements and pouring it into a mold, and then cooling, solidifying, and cleaning to obtain a casting with a predetermined shape, size, and performance. Molding sand is one of the indispensable materials in the casting process. After being heated, the molding sand is easy to become hardened and deformed, which will damage the surface of the casting. Therefore, the molding sand must have a high enough strength to avoid collapse during the molding, transportation, and box closing process, and will not damage the surface of the mold during pouring. The strength of the molding sand should not be too high, otherwise the casting will have defects due to the decrease in permeability and yieldability. Therefore, the strength of the molding sand is directly related to the quality of the casting; therefore, it is necessary to test the strength of the molding sand, which is done by sintering the molding sand and solidifying it into a specific shape for extrusion testing to detect the maximum extrusion force that the molding sand test block can withstand.

[0003] In the existing patent publication number CN113899627A, a molding sand strength detection device is disclosed, including a die assembly arranged on the equipment body; the die assembly includes a fixed die fixedly connected to one side of the equipment body and a movable die slidably connected to the other side of the equipment body, the movable die is provided with a dustproof mechanism, the movable die is slidably connected to the second connecting plate in the left and right directions, a fourth elastic member is provided between the second connecting plate and the movable die, the second connecting plate is fixedly connected to a sliding driving member that drives it to move, a pressure sensor is provided between the second connecting plate and the movable die, and the pressure sensor movably contacts the movable die.

[0004] In the above technical scheme, the silo is funnel-shaped and connected with the material guide barrel and the silo is located above the material guide barrel, so that the molding sand test blocks in the silo can enter the material guide barrel under the action of gravity. However, this scheme still requires manual placement of a batch of molding sand test blocks in the silo, which is time-consuming and labor-intensive, and has a low degree of automation. Moreover, when several molding sand test blocks move toward the material guide barrel, they are easily blocked at the entrance of the material guide barrel, making it impossible to load the material normally. The loading stability is poor, and the equipment is only suitable for spherical test blocks and cannot be used for testing the more common square molding sand blocks.

[0005] Therefore, it is necessary to provide a testing system and a working method for metal riot-proof box casting materials, which can achieve the effect of automatic testing. Summary of the invention

[0006] The object of the present invention is to provide a testing system for metal riot-proof box casting materials and a working method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a testing system for metal riot-proof box casting materials and a working method thereof, comprising a support table, a turntable, a testing assembly, a transport unit, a collection box and a testing table,

[0008] The transport part is used to continuously transport the molding sand blocks to the supporting platform;

[0009] The upper end of the support table is fixedly connected to a support column, and the upper end of the support column is rotatably connected to the turntable. The test components are provided in at least three groups and are respectively arranged on the outer side of the turntable. The turntable drives the three groups of test components to pass through the transport part, the test table and the collection box in sequence.

[0010] The test assembly includes a protective cover, the inner side of the protective cover is slidably matched with a liftable pressure plate, the lower side of the pressure plate is provided with a pair of support plates that can be hinged and opened, the pair of support plates are combined with each other to clamp the molding sand block to be tested, and the pressure plate applies pressure to the molding sand block for testing;

[0011] The collecting box and the testing table are both fixed to the upper end of the supporting table, the lower end surface of the combined supporting plate is arranged flush with the upper end surface of the testing table, and the collecting box is used to collect the molding sand blocks after the test.

[0012] In one embodiment, the upper end of the pressure plate is fixedly connected with a fixing sleeve, the inner side of the fixing sleeve is provided with an internal thread, the inner side of the fixing sleeve is threadedly connected with a threaded rod, the upper end of the threaded rod is provided with a motor, the lower end of the motor is fixedly connected with a top plate, the top plate is fixedly connected to the rotating disk, the upper end of the protective cover is fixedly connected with a plurality of guide columns, the guide columns penetrate the top plate and slide with it, and the upper ends of the guide columns are fixedly connected with an annular end cap;

[0013] A through hole is formed in the center of the protective cover for movement of the fixed sleeve, a fixing plate is fixedly connected to the outer side of the protective cover, limiting blocks are fixedly connected to the four sides of the pressure plate, four limiting vertical grooves are formed on the inner side of the protective cover, and the limiting blocks are adapted to the limiting vertical grooves.

[0014] In one embodiment, guide rods are passed through and slidably fitted on the four sides of the fixed plate, an end cover is fixedly connected to the upper end of the guide rod, a pair of extension blocks are fixedly connected to the lower end of the guide rod, a telescopic spring member is arranged between the guide rod and the extension block, a pair of L-shaped plates are fixedly connected between the pair of extension blocks, the support plate is arranged at the lower end of the L-shaped plate, and the pair of extension blocks are hinged to the support plate.

[0015] In one embodiment, a transverse groove is opened at the lower end of the support plate, a threaded column passes through and is threadedly connected to the middle side of the L-shaped plate, the lower end of the threaded column is rotatably connected to a limiting plate, the limiting plate is adapted to the transverse groove, and a plurality of guide telescopic rods are arranged between the limiting plate and the L-shaped plate.

[0016] In one embodiment, an annular groove is provided on the inner side of the protective cover, and the annular groove is communicated with the limiting vertical groove, and the annular groove is used for the limiting block to move in an annular manner. A driving ring is rotatably connected in the annular groove, and four pairs of baffles are fixedly connected to the inner side of the driving ring. The upper and lower ends of the limiting block are provided with round chamfers, and the four pairs of baffles are adapted to the four limiting blocks. An annular tooth groove is provided on the outer side of the driving ring, and adaptation holes are provided at both ends of the protective cover. Gears are meshingly connected at both ends of the annular tooth groove, and the threaded column passes through the gear and slidably cooperates with it. Straight key grooves are provided on both sides of the threaded column, and a driving key is arranged on the inner side of the gear, and the straight key groove is adapted to the driving key. Wheel plates are rotatably connected to the upper and lower ends of the gear, and the wheel plate is fixedly connected to the protective cover, and the threaded column passes through the wheel plate and is clearance-matched with it.

[0017] When the limit plates and the horizontal grooves are fitted together, the four pairs of baffles and the four limit vertical grooves are aligned with each other;

[0018] When the limiting block is in the annular groove, the lower end surface of the pressure plate and the supporting plate are spaced apart by a distance of a molding sand block.

[0019] In one embodiment, the transport part includes a conveyor belt, guide bars are provided on both sides of the conveyor belt, the guide bars are fixedly connected to the support table, the upper end of the support table is fixedly connected to a limit frame, the limit frame is connected to the guide bar, a sinking groove is opened on the inner side of the support table, an electric telescopic rod is provided in the sinking groove, a push block is provided on the upper end of the electric telescopic rod, and the width of the push block is shorter than the molding sand block.

[0020] In one embodiment, a pair of brake blocks are provided on the outer side of the guide bar, a push plate is fixedly connected to the lower end of the brake block, a pair of fixed side plates are fixedly connected to the outer side of the support platform, and a spring telescopic rod is provided between the fixed side plates and the push plate.

[0021] In one embodiment, a dual-axis motor is fixedly connected to the inner side of the support column, and the dual-axis motor drives a rotating shaft, the upper end of the rotating shaft is fixedly connected to the turntable, the lower end of the rotating shaft is fixedly connected to pulley one, one side of the pulley one is connected to pulley two, the upper end of the pulley two is fixedly connected to a cam, one side of the cam is provided with a cross bar, a sliding groove is opened at the bottom of the support platform, the cross bar slides in the sliding groove, a return spring is provided between the sliding groove and the cross bar, both ends of the cross bar are fixedly connected to moving rods, one end of the moving rod is fixedly connected to a trapezoidal wedge block, the inner side of the push plate is fixedly connected to a triangular wedge block, and the trapezoidal wedge block is adapted to the inclined surface of the triangular wedge block.

[0022] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention continuously transports the molding sand block to the supporting table through the transportation part, and then drives at least one group of test components to move in a circular manner through the rotation of the turntable, so that the test component first moves to the transportation part, and then a pair of unfolded support plates are relatively rotated upward to clamp the molding sand block and move it upward, until the pair of support plates are completely merged, and the molding sand block is supported on the lower side of the protective cover, thereby completing the loading of the molding sand block, and then the turntable drives the molding sand block to move to the upper side of the test table, and the lower end surface of the merged support plate is flush with the upper end surface of the test table, so that the test table is attached to the lower side of the pair of support plates for support, thereby improving the stability of the subsequent pressure test, and then the pressure plate is descended along the protective cover to apply pressure to the molding sand block. A pressure sensor is arranged on the inner side to detect the maximum extrusion pressure on the molding sand block, that is, the maximum pressure that the molding sand block can withstand when it is broken, so as to realize the function of extrusion test on the molding sand block; then the turntable drives the tested molding sand block to move to the upper side of the collecting box, and a pair of support plates are unfolded downward, so that the tested molding sand block falls into the collecting box along a pair of inclined support plates for collection, so as to realize the function of automatic unloading; then the test assembly can be returned to the transportation department, and the above steps can be repeated to realize the continuous testing function of the molding sand block, which greatly improves the work efficiency, and does not require manual intervention throughout the process, with a high degree of automation. By setting the support plate, the loading and unloading functions of the molding sand block can be realized at the same time, and the extrusion test of the molding sand block can be completed in cooperation with the pressure plate, which is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0024] In the attached picture:

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2is a schematic diagram of the interior of the protective cover of the present invention;

[0027] Figure 3 is a three-dimensional schematic diagram of a support plate of the present invention;

[0028] Figure 4 is a schematic diagram of the bottom of the support plate of the present invention;

[0029] Figure 5 It is a schematic diagram of a partial cross-section of the main view of the present invention;

[0030] Figure 6 yes Figure 5 A local enlarged schematic diagram of region A;

[0031] Figure 7 It is a three-dimensional schematic diagram of the transport unit of the present invention;

[0032] Figure 8 is a schematic diagram of the bottom of the support platform of the present invention;

[0033] In the figure: 1, protective cover; 101, pressure plate; 102, fixed sleeve; 103, threaded rod; 104, limit block; 105, limit vertical groove; 106, drive ring; 107, baffle; 108, annular tooth groove; 109, gear; 110, fixed plate;

[0034] 2. Support plate; 201. Extension block; 202. Guide rod; 203. L-shaped plate; 204. Horizontal groove; 205. Threaded column; 206. Limiting plate;

[0035] 3. Rotating plate; 301. Pulley 1; 302. Brake block; 303. Push plate; 304. Fixed side plate; 305. Pulley 2; 306. Cam; 307. Crossbar; 308. Moving rod; 309. Trapezoidal wedge;

[0036] 4. Transportation department; 401. Conveyor belt; 402. Guide strip; 403. Limiting frame;

[0037] 5. Support table; 501. Electric telescopic rod; 502. Pushing block;

[0038] 6. Molding sand block;

[0039] 7. Collection box; 701. Test bench;

[0040] 8. Dual-axis motor; 801. Rotating axis;

[0041] 9. Motor; 901. Top plate; 902. Guide column. DETAILED DESCRIPTION

[0042] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0043] See also Figure 1-8 The present invention provides a technical solution: a testing system for metal riot-proof box casting materials and a working method thereof, comprising a support table 5, a turntable 3, a testing assembly, a transport unit 4, a collection box 7 and a testing table 701,

[0044] The transporting part 4 is used for continuously transporting the molding sand block 6 to the supporting platform 5;

[0045] The upper end of the support platform 5 is fixedly connected with a support column, and the upper end of the support column is rotatably connected to the turntable 3. There are at least three groups of test components and they are respectively arranged on the outer side of the turntable 3. The turntable 3 drives the three groups of test components to pass through the transport part 4, the test platform 701 and the collection box 7 in sequence.

[0046] The test assembly includes a protective cover 1, the inner side of the protective cover 1 is slidably matched with a liftable pressure plate 101, the lower side of the pressure plate 101 is provided with a pair of support plates 2 that can be hinged and opened, the pair of support plates 2 are combined with each other to clamp the molding sand block 6 to be tested, and the pressure plate 101 applies pressure to the molding sand block 6 for testing;

[0047] The collecting box 7 and the testing table 701 are both fixed to the upper end of the supporting table 5. The lower end surface of the combined supporting plate 2 is flush with the upper end surface of the testing table 701. The collecting box 7 is used to collect the molding sand blocks 6 after the test.

[0048] First, the molding sand block 6 is continuously transported to the supporting platform 5 through the transport part 4, and then the turntable 3 rotates to drive at least one group of test components to move in a circular manner, so that the test components are first moved to the transport part 4, and then a pair of unfolded support plates 2 are rotated upward relative to each other to clamp the molding sand block 6 and move it upward, until the pair of support plates 2 are completely merged, and the molding sand block 6 is supported on the lower side of the protective cover 1, thereby completing the loading of the molding sand block 6, and then the turntable 3 drives the molding sand block 6 to move to the upper side of the test bench 701, and the lower end surface of the merged support plate 2 is flush with the upper end surface of the test bench 701, so that the test bench 701 is attached to the lower side of the pair of support plates 2 for support, thereby improving the stability of the subsequent pressure test, and then the pressure plate 101 is descended along the inside of the protective cover 1 to apply pressure to the molding sand block 6, and a pressure plate 101 is set on the inner side of the pressure plate 101. There is a pressure sensor to detect the maximum extrusion force on the molding sand block 6, that is, the maximum pressure that the molding sand block 6 can withstand when it is broken, so as to realize the function of extrusion test on the molding sand block 6; then the turntable 3 drives the tested molding sand block 6 to move to the upper side of the collection box 7, and a pair of support plates 2 are unfolded downward, so that the tested molding sand block 6 falls into the collection box 7 along a pair of inclined support plates 2 for collection, realizing the function of automatic unloading, and then the test assembly can be returned to the transport part 4, and the above steps are repeated to realize the continuous testing function of the molding sand block 6, which greatly improves the work efficiency, and does not require manual intervention throughout the process, with a high degree of automation. By setting the support plate 2, the loading and unloading functions of the molding sand block 6 can be realized at the same time, and the pressure plate 101 can also be used to complete the extrusion test of the molding sand block 6, which is highly practical;

[0049] Preferably, three groups of test components are provided, which can simultaneously and cyclically perform the steps of loading, pressure testing and unloading of the molding sand block 6, thereby further improving the test efficiency.

[0050] The upper end of the pressure plate 101 is fixedly connected with a fixing sleeve 102, the inner side of the fixing sleeve 102 is provided with an internal thread, the inner side of the fixing sleeve 102 is threadedly connected with a threaded rod 103, the upper end of the threaded rod 103 is provided with a motor 9, the lower end of the motor 9 is fixedly connected with a top plate 901, the top plate 901 is fixedly connected to the rotating disk 3, the upper end of the protective cover 1 is fixedly connected with a plurality of guide posts 902, the guide posts 902 penetrate the top plate 901 and slide with it, and the upper end of the guide posts 902 is fixedly connected with an annular end cover;

[0051] A through hole is formed in the center of the protective cover 1 for the fixed sleeve 102 to move, a fixed plate 110 is fixedly connected to the outside of the protective cover 1, and limiting blocks 104 are fixedly connected to the four sides of the pressure plate 101. Four limiting vertical grooves 105 are formed on the inside of the protective cover 1, and the limiting blocks 104 are adapted to the limiting vertical grooves 105.

[0052] Preferably, the threaded rod 103 is driven to rotate by the motor 9, which is threadedly connected to the fixed sleeve 102, and a limit block 104 is set to slide along the limit vertical groove 105 for guidance, so that the pressure plate 101 moves up and down in the protective cover 1 to test the molding sand block 6.

[0053] The four sides of the fixed plate 110 are penetrated and slidably matched with guide rods 202, the upper end of the guide rods 202 is fixedly connected with an end cover, the lower end of the guide rods 202 is fixedly connected with a pair of extension blocks 201, a telescopic spring member is arranged between the guide rods 202 and the extension blocks 201, a pair of L-shaped plates 203 are fixedly connected between the pair of extension blocks 201, the support plate 2 is arranged at the lower end of the L-shaped plate 203, and the pair of extension blocks 201 are hingedly connected to the support plate 2.

[0054] A transverse groove 204 is provided at the lower end of the support plate 2, and a threaded column 205 passes through and is threadedly connected to the middle side of the L-shaped plate 203. The lower end of the threaded column 205 is rotatably connected to a limit plate 206, which is adapted to the transverse groove 204. A plurality of guide telescopic rods are arranged between the limit plate 206 and the L-shaped plate 203.

[0055] Preferably, a pair of support plates 2 are provided with two ends hingedly connected to a pair of extension blocks 201. Since the support plates 2 have their own weight, the support plates 2 are unfolded downward in a natural state. When the opening and closing thereof needs to be controlled, a limit plate 206 and a transverse groove 204 are provided. Specifically, the limit plate 206 is adapted to the transverse groove 204. Since the support plates 2 are under the action of gravity, the transverse groove 204 is always in contact with the limit plate 206. When the threaded column 205 rotates, it is threadedly connected with the L-shaped plate 203, thereby driving the limit plate 206 to move upward, and the guide telescopic rod guides, so that one end of the limit plate 206 contacts the support plate 2 and pushes it upward, so that the support plate 2 flips upward, thereby clamping the molding sand block 6, until the limit plate 206 is completely fitted in the transverse groove 204, the pair of support plates 2 can be completely merged, and the loading work is completed. When the limit plate 206 moves downward, the support plate 2 slowly opens downward for unloading.

[0056] An annular groove is provided on the inner side of the protective cover 1, which is communicated with the limiting vertical groove 105. The limiting block 104 is provided with an annular movement in the annular groove. A driving ring 106 is rotatably connected in the annular groove. Four pairs of baffles 107 are fixedly connected to the inner side of the driving ring 106. The upper and lower ends of the limiting block 104 are provided with round chamfers. The four pairs of baffles 107 are adapted to the four limiting blocks 104. An annular tooth groove 108 is provided on the outer side of the driving ring 106. Adaptation holes are provided at both ends of the protective cover 1. Gears 109 are meshed and connected at both ends of the annular tooth groove 108. The threaded column 205 passes through the gear 109 and slides with it. Straight key grooves are provided on both sides of the threaded column 205. A driving key is provided on the inner side of the gear 109. The straight key groove is adapted to the driving key. The upper and lower ends of the gear 109 are rotatably connected with wheel plates, and the wheel plate is fixedly connected to the protective cover 1. The threaded column 205 passes through the wheel plate and is clearance-matched with it.

[0057] When the limiting plate 206 and the horizontal groove 204 are fitted together, the four pairs of baffles 107 and the four limiting vertical grooves 105 are aligned with each other;

[0058] When the limiting block 104 is in the annular groove, the lower end surface of the pressure plate 101 and the support plate 2 are spaced apart by a distance of a molding sand block 6 .

[0059] Preferably, when the pressure test is performed, the threaded rod 103 rotates to drive the fixed sleeve 102 and the pressure plate 101 to move, and the limit blocks 104 on the four sides of the pressure plate 101 slide along the limit vertical grooves 105 for guidance, so that the pressure plate 101 is pressed down to test the molding sand block 6 until the molding sand block 6 is broken, and the test is completed. At this time, the rotary disk 3 drives the test assembly to move from the test bench 701 to the upper side of the collection box 7, and at this time, the pressure plate 101 continues to descend until the limit blocks 104 move into the annular groove and are stuck in the baffle 107 (such as Figure 2As shown in the figure, the limit block 104 is now out of the limit vertical groove 105 and is in the annular groove and cannot continue to descend. Therefore, when the threaded rod 103 rotates, due to the lack of guidance, it can no longer drive the pressure plate 101 to move downward, but directly transmits torque through the threaded connection between the threaded rod 103 and the fixed sleeve 102 to drive the fixed sleeve 102 and the pressure plate 101 to rotate synchronously, and the limit block 104 is stuck between the baffles 107, so that the rotation of the pressure plate 101 drives the drive ring 106 to rotate synchronously. When the drive ring 106 rotates, it meshes with the gear 109 through the annular tooth groove 108, driving the gear 109 to rotate. The gear 109 is driven by the drive key and the straight The key slot can drive the threaded column 205 to rotate, and the threaded column 205 moves downward, so that the limit plate 206 moves downward, and the support plate 2 loses support and slowly opens downward, and the tested molding sand block 6 is unloaded into the collection box 7. In other words, the motor 9 drives the threaded rod 103 to rotate, and first drives the pressure plate 101 to descend to perform a pressure test on the molding sand block 6. After the test, the threaded column 205 is also driven to rotate, thereby controlling the support plate 2 to open for unloading. No additional drive components or control programs are required for the whole process. It can be achieved by only driving the threaded rod 103 to rotate by the motor 9, which saves costs, has a high degree of automation, and has stable process connection.

[0060] Furthermore, after the unloading of the support plate 2 is completed, the rotary disk 3 can drive the test assembly to rotate, so that the pair of support plates 2 remain in the open state and move to the transport part 4, and then the motor 9 drives the threaded rod 103 to rotate in the reverse direction, and similarly, the pressure plate 101 drives the drive ring 106 to rotate in the reverse direction, and the drive ring 106 can drive the threaded column 205 to reverse, thereby driving the limit plate 206 to move upward, pushing the pair of support plates 2 to flip and merge, and then directly clamping the new molding sand block 6 for testing;

[0061] When the pressure plate 101 is in the annular groove, it indicates that the test operation has been completed. At this time, the molding sand block 6 is in a broken state and needs to be unloaded. Therefore, it is necessary to control the height of the molding sand block 6 to ensure that its overall height is at least higher than the annular groove during the test so that the pressure plate 101 can be lowered for pressure testing. However, in this way, when the support plates 2 merge with each other to clamp the new molding sand block 6 and rise, since the pressure plate 101 is in the annular groove, the distance between the pressure plate 101 and the support plate 2 is not enough to accommodate the molding sand block 6. Therefore, the support plate 2 is arranged to be able to be lifted and lowered vertically. Specifically, under the action of gravity, the extension block 201, the L-shaped plate 203 and the support plate 2 naturally hang down, and the end cover at the upper end of the guide rod 202 contacts the fixed plate 110. At this time, when the support plate 2 is taking materials, the distance between the support plate 2 and the pressure plate 101 in the annular groove can accommodate the molding sand block 6 (such as Figure 5As shown in the figure, the limit plate 206 and the transverse groove 204 are fitted together, and the support plate 2 cannot move up further, so that the threaded column 205, the gear 109, the drive ring 106 and the pressure plate 101 cannot continue to rotate in the opposite direction. At this time, the baffle 107 on the drive ring 106 is aligned with the limit vertical groove 105, and the limit block 104 of the pressure plate 101 is guided again. Therefore, the threaded rod 103 continues to reverse, and the pressure plate 101 can be driven to rise along the limit vertical groove 105 until it rises to the point where the pressure plate 101 contacts the upper end of the protective cover 1, and then the pressure plate 101 pushes the protective cover 1 to rise as a whole, and the guide column 902 guides, thereby raising the support plate 201 in a naturally drooping state. The horizontal height of the support plate 2 makes it higher than the test bench 701. At the same time, the support plate 2 also moves to the upper side of the test bench 701, and the pressure plate 101 descends. The support plate 2 falls on the test bench 701 and the protective cover 1 also resets and descends. Since the support plate 2 is on the test bench 701, when the protective cover 1 descends and resets, relative to the descent of the support plate 2, the straight key grooves on both sides of the threaded column 205 and the inner driving keys of the gear 109 slide and adapt to each other, thereby reducing the distance between the support plate 2 and the annular groove. At this time, the pressure plate 101 descends, and the molding sand block 6 can be tested first. After the test is completed, the pressure plate 101 continues to descend into the annular groove to drive the unloading.

[0062] Since the driving ring 106 and the gear 109 are meshedly connected, and the threaded column 205 and the L-shaped plate 203 are threadedly connected, the transmission accuracy is improved, and when the limit plate 206 and the horizontal groove 204 are in contact with each other, the four pairs of baffles 107 and the four limit vertical grooves 105 are aligned with each other, and since the threaded connection is self-locking, the position of the driving ring 106 can be kept stationary when not working, ensuring that the limit block 104 can stably move back and forth between the limit vertical groove 105 and the baffle 107.

[0063] The transport part 4 includes a conveyor belt 401, guide bars 402 are arranged on both sides of the conveyor belt 401, the guide bars 402 are fixedly connected to the support platform 5, the upper end of the support platform 5 is fixedly connected to the limit frame 403, the limit frame 403 is connected to the guide bar 402, a sinking groove is opened on the inner side of the support platform 5, an electric telescopic rod 501 is arranged in the sinking groove, a push block 502 is arranged on the upper end of the electric telescopic rod 501, and the width of the push block 502 is shorter than the molding sand block 6.

[0064] Preferably, a plurality of molding sand blocks 6 are transported by a conveyor belt 401, and a guide bar 402 is provided to guide the transport direction, so that the plurality of molding sand blocks 6 are sequentially arranged into the limit frame 403 for positioning, and then the pusher block 502 is driven to rise by the electric telescopic rod 501, thereby pushing the frontmost molding sand block 6 to rise, so as to facilitate the unfolded support plate 2 to clamp and load the material. Specifically, the width of the pusher block 502 is set to be shorter than the molding sand block 6 (such as Figure 5As shown), when clamping, a pair of support plates 2 first contact the lower sides of the two ends of the lifted molding sand block 6, and the pusher block 502 is reset and merged with the support plates 2, thereby lifting and supporting the molding sand block 6 to complete the loading.

[0065] A pair of brake blocks 302 are arranged on the outer side of the guide bar 402 , and a push plate 303 is fixedly connected to the lower end of the brake block 302 . A pair of fixed side plates 304 are fixedly connected to the outer side of the support platform 5 , and a spring telescopic rod 1 is arranged between the fixed side plates 304 and the push plate 303 .

[0066] Preferably, since several molding sand blocks 6 are arranged together in sequence, and in order to avoid interference between the support plate 2 and the subsequent molding sand blocks 6, brake blocks 302 are provided for orderly material transportation. Specifically, a pair of push plates 303 drive a pair of brake blocks 302 to merge with each other, and a pair of brake blocks 302 are clamped at both ends of the molding sand blocks 6 to limit their movement, thereby leaving enough space for the support plate 2 to clamp and feed materials. When the molding sand blocks 6 need to be replenished, the pair of brake blocks 302 are unfolded to each other, so that the current molding sand block 6 is transported to the upper side of the push block 502, and then the pair of brake blocks 302 are merged again under the resetting action of the spring telescopic rod 1, and the subsequent molding sand blocks 6 are limited, thereby realizing continuous screening of single molding sand blocks 6 for feeding.

[0067] A dual-axis motor 8 is fixedly connected to the inner side of the support column, and the dual-axis motor 8 drives a rotating shaft 801. The upper end of the rotating shaft 801 is fixedly connected to the turntable 3, and the lower end of the rotating shaft 801 is fixedly connected to a pulley 1 301. One side of the pulley 1 301 is connected to a pulley 2 305. The upper end of the pulley 2 305 is fixedly connected to a cam 306. A cross bar 307 is provided on one side of the cam 306. A sliding groove is provided at the bottom of the support platform 5. The cross bar 307 slides in the sliding groove. A return spring is provided between the sliding groove and the cross bar 307. Moving rods 308 are fixedly connected to both ends of the cross bar 307. One end of the moving rod 308 is fixedly connected to a trapezoidal wedge block 309. A triangular wedge block is fixedly connected to the inner side of the push plate 303. The trapezoidal wedge block 309 is adapted to the inclined surface of the triangular wedge block.

[0068] Preferably, a dual-axis motor 8 is provided to drive the rotating shaft 801, and the rotating shaft 801 drives the turntable 3 to rotate intermittently, thereby driving the test assembly to move, and sequentially performing the functions of loading, testing and unloading. At the same time, the rotating shaft 801 also drives the pulley 1 301 to rotate, and drives the pulley 2 305 to rotate through the belt connection, and the pulley 2 305 drives the cam 306 to rotate, so that the cam 306 pushes the cross bar 307, and the cross bar 307 moves to push the moving rod 308 and the trapezoidal wedge block 309 to move, and the trapezoidal wedge block 309 and the triangular wedge block inclined surface slide with each other, thereby pushing the triangular wedge block to move, so that a pair of push plates 303 can be moved away from each other, so that the brake block 302 releases the restriction on the molding sand block 6, that is, when the test assembly is intermittently displaced, the brake block 302 is also synchronously driven to open and close intermittently, so that each time the support plate 2 moves to the upper side of the push block 502 to take the material, the brake block 302 automatically releases the molding sand block 6 for loading and matching, and the two have good synchronization and high degree of automation;

[0069] Preferably, the size of pulley 1 301 is set larger than that of pulley 2 305, thereby changing the transmission ratio between the two, so that when pulley 1 301 rotates one-third of a circle, pulley 2 305 rotates one circle. When the test component moves from the unloading process to the loading process, the cam 306 rotates one circle, thereby driving a pair of brake blocks 302 to separate and merge from each other, releasing a single molding sand block 6 for loading, and the loading stability is high.

[0070] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, internal communication between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the meanings of the above terms in this application can be understood according to specific circumstances.

[0071] The above is a detailed introduction to the testing system and working method for metal riot-proof box casting materials provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and core idea of ​​the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A testing system for metal riot-proof box casting materials, comprising a support table (5), a turntable (3), a testing assembly, a transport unit (4), a collection box (7) and a testing table (701), characterized in that: The transporting part (4) is used to continuously transport the molding sand block (6) to the supporting platform (5); The upper end of the support platform (5) is fixedly connected to a support column, and the upper end of the support column is rotatably connected to the turntable (3). The test components are provided in at least three groups and are respectively arranged on the outside of the turntable (3). The turntable (3) drives the three groups of test components to pass through the transport part (4), the test platform (701) and the collection box (7) in sequence. The test assembly comprises a protective cover (1), the inner side of the protective cover (1) is slidably matched with a liftable pressure plate (101), the lower side of the pressure plate (101) is provided with a pair of support plates (2) that can be hinged and opened, the pair of support plates (2) are combined with each other to clamp the molding sand block (6) to be tested, and the pressure plate (101) applies pressure to the molding sand block (6) for testing; The collecting box (7) and the testing table (701) are both fixed to the upper end of the supporting table (5), the lower end surface of the combined supporting plate (2) is arranged flush with the upper end surface of the testing table (701), and the collecting box (7) is used to collect the molding sand blocks (6) after the test; The upper end of the pressure plate (101) is fixedly connected to a fixing sleeve (102), the inner side of the fixing sleeve (102) is provided with an internal thread, the inner side of the fixing sleeve (102) is threadedly connected to a threaded rod (103), the upper end of the threaded rod (103) is provided with a motor (9), the lower end of the motor (9) is fixedly connected to a top plate (901), the top plate (901) is fixedly connected to the rotating plate (3), the upper end of the protective cover (1) is fixedly connected to a plurality of guide columns (902), the guide columns (902) penetrate the top plate (901) and are slidably matched therewith, and the upper ends of the guide columns (902) are fixedly connected to an annular end cover; A through hole is formed in the center of the protective cover (1) for the fixed sleeve (102) to move, a fixed plate (110) is fixedly connected to the outside of the protective cover (1), four sides of the pressure plate (101) are fixedly connected to limiting blocks (104), and four limiting vertical grooves (105) are formed on the inside of the protective cover (1), and the limiting blocks (104) are matched with the limiting vertical grooves (105); The four sides of the fixed plate (110) are penetrated by guide rods (202) that are slidably matched, the upper end of the guide rod (202) is fixedly connected to an end cover, the lower end of the guide rod (202) is fixedly connected to a pair of extension blocks (201), a telescopic spring member is provided between the guide rod (202) and the extension block (201), a pair of L-shaped plates (203) are fixedly connected between the pair of extension blocks (201), the support plate (2) is provided at the lower end of the L-shaped plate (203), and the pair of extension blocks (201) are hingedly connected to the support plate (2); A transverse groove (204) is provided at the lower end of the support plate (2); a threaded column (205) passes through the middle side of the L-shaped plate (203) and is threadedly connected; the lower end of the threaded column (205) is rotatably connected to a limit plate (206); the limit plate (206) is adapted to the transverse groove (204); and a plurality of guide telescopic rods are provided between the limit plate (206) and the L-shaped plate (203); An annular groove is provided on the inner side of the protective cover (1), the annular groove is communicated with the limiting vertical groove (105), the limiting block (104) is provided with an annular groove for annular movement, a driving ring (106) is rotatably connected in the annular groove, four pairs of baffles (107) are fixedly connected to the inner side of the driving ring (106), the limiting block (104) is provided with rounded chamfers at both the upper and lower ends, the four pairs of baffles (107) are adapted to the four limiting blocks (104), an annular tooth groove (108) is provided on the outer side of the driving ring (106), and the protective cover (1) is provided with a plurality of tooth grooves (108). Adaptation holes are provided at both ends of the cover (1), gears (109) are meshedly connected at both ends of the annular tooth groove (108), the threaded column (205) passes through the gear (109) and is slidably matched with the gear (109), straight key grooves are provided on both sides of the threaded column (205), a driving key is provided on the inner side of the gear (109), the straight key groove is matched with the driving key, the upper and lower ends of the gear (109) are rotatably connected with wheel plates, the wheel plates are fixedly connected to the protective cover (1), and the threaded column (205) passes through the wheel plate and is clearance-matched with the wheel plate; When the limiting plate (206) and the transverse groove (204) are in contact with each other, the four pairs of baffles (107) and the four limiting vertical grooves (105) are aligned with each other; When the limiting block (104) is in the annular groove, the distance between the lower end surface of the pressure plate (101) and the support plate (2) is equal to the distance of a molding sand block (6).

2. The testing system for metal riot-proof box casting materials according to claim 1, characterized in that: The transport part (4) comprises a conveyor belt (401), guide bars (402) are arranged on both sides of the conveyor belt (401), the guide bars (402) are fixedly connected to the support platform (5), the upper end of the support platform (5) is fixedly connected to a limit frame (403), the limit frame (403) is butted against the guide bar (402), a sinking groove is provided on the inner side of the support platform (5), an electric telescopic rod (501) is arranged in the sinking groove, a pusher block (502) is arranged at the upper end of the electric telescopic rod (501), and the width of the pusher block (502) is shorter than that of the molding sand block (6).

3. The testing system for metal riot-proof box casting materials according to claim 2, characterized in that: A pair of brake blocks (302) are arranged on the outside of the guide bar (402), and a push plate (303) is fixedly connected to the lower end of the brake block (302). A pair of fixed side plates (304) are fixedly connected to the outside of the support platform (5), and a spring telescopic rod is arranged between the fixed side plates (304) and the push plate (303).

4. The testing system for metal riot-proof box casting materials according to claim 3, characterized in that: A dual-axis motor (8) is fixedly connected to the inner side of the support column, and the dual-axis motor (8) drives a rotating shaft (801), the upper end of the rotating shaft (801) is fixedly connected to the turntable (3), the lower end of the rotating shaft (801) is fixedly connected to a pulley 1 (301), one side of the pulley 1 (301) is connected to a pulley 2 (305), the upper end of the pulley 2 (305) is fixedly connected to a cam (306), and one side of the cam (306) is provided with a cross bar. (307), a sliding groove is provided at the bottom of the support platform (5), the cross bar (307) slides in the sliding groove, a return spring is provided between the sliding groove and the cross bar (307), both ends of the cross bar (307) are fixedly connected with a moving rod (308), one end of the moving rod (308) is fixedly connected with a trapezoidal wedge block (309), the inner side of the push plate (303) is fixedly connected with a triangular wedge block, and the trapezoidal wedge block (309) is adapted to the inclined surface of the triangular wedge block.

5. The working method of the testing system for metal riot-proof box casting materials according to claim 1, characterized in that The following steps are involved: S1, continuously transporting the molding sand block (6) to the support platform (5) through the transport unit (4); S2, the rotating disk (3) is rotated to drive the three groups of test assemblies to move in a circular manner, so that the test assemblies are first moved to the transport portion (4), and then the pair of unfolded support plates (2) are rotated upward relative to each other to clamp the molding sand block (6) and move upward until the pair of support plates (2) are completely combined to support the molding sand block (6) on the lower side of the protective cover (1); S3, the rotating disk (3) then drives the molding sand block (6) to move to the upper side of the test bench (701), the test bench (701) supports a pair of support plates (2), and then the pressure plate (101) descends along the protective cover (1) to apply pressure to the molding sand block (6); S4. Then, the rotary disk (3) drives the tested molding sand block (6) to move to the upper side of the collection box (7), and a pair of support plates (2) unfold downward to discharge the tested molding sand block (6) into the collection box (7).

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