Coated sand disintegration tester and test method

Abstract

The present invention discloses a coating sand disintegration detection machine and a detection method, and relates to the coating sand detection technical field. The present invention provides a coating sand disintegration detection machine and a detection method that can avoid loose sand residue and improve the detection effect. The coating sand disintegration detection machine includes a fixed frame, the fixed frame is fixedly connected to an electronic scale, a collection frame is placed on the electronic scale, the fixed frame is fixedly connected to a heating cylinder, the side of the heating cylinder close to the collection frame is a conical funnel structure, and the heating cylinder is rotatably connected to a baffle. The coated sand piece is placed in an elastic clamp rod and heated by the heating cylinder. When the elastic clamp rod moves up and down and rotates forward and backward, the coated sand piece will also roll in the elastic clamp rod to improve the detection effect and ensure that all the loose sand falls. At the same time, the scattered loose sand can be better thrown out, reducing the residual loose sand and improving the detection accuracy. The scattered sand falls downward to the collection frame and is weighed. The disintegration performance of the coated sand is obtained according to the proportion of the scattered sand.

Description

Technical Field

[0001] The present invention relates to the technical field of coated sand detection, and in particular to a coated sand collapsibility detection machine and a detection method. Background Art

[0002] Collapsibility refers to whether the coated sand can smoothly collapse and fall off during the casting process, especially in the production of non-ferrous metal castings, when the sand core or sand mold is cooled after pouring. The coated sand collapsibility test is a method to evaluate the residual strength of the sand mold after sintering. The quality of the coated sand can be distinguished through the collapsibility test. High-quality coated sand can reduce the loss and waste generation in the casting process through its better performance, indirectly reducing the risk of water resource pollution during subsequent waste treatment, and after use, high-quality coated sand may be easier to recycle or safely dispose of during waste treatment, reducing the amount of pollutants directly entering the water body.

[0003] The patent with the patent authorization announcement number CN115931620A discloses a coated sand disintegration detection machine, which includes a weight sensor, etc. The weight sensor is electrically connected to the external display screen, and also includes a knock-off mechanism and a push-in mechanism. The upper side of the inner wall of the detection barrel is provided with a knock-off mechanism for knocking off the coated sand on the inner wall of the detection barrel, and the lower part of the detection barrel is provided with a push-in mechanism for scraping off the coated sand on the lower side of the inner wall of the detection barrel. The coated sand disintegration detection machine can clean up the coated sand stuck on the upper and lower sides of the inner wall of the detection barrel by cooperating with the knock-off hammer and the first scraper, thereby reducing the impact on the detection result. However, when the coated sand disintegration detection machine is performing detection, it relies on the clamping claw to clamp the coated sand piece. During the detection, a small amount of loose sand will remain on the contact surface between the clamping component and the coated sand piece, and the coated sand disintegration detection machine can only perform disintegration detection by driving the coated sand piece to simply rotate, and the detection effect is not good, thereby affecting the accuracy of the detection.

[0004] To this end, we propose a coated sand collapsibility detection machine and detection method that can avoid loose sand residue and improve the detection effect, so as to improve the accuracy of the detection results. Summary of the invention

[0005] In order to overcome the shortcomings of the existing coated sand disintegration tester that relies on the clamping claws to clamp the coated sand pieces, loose sand residue is easily left on the contact surface between the clamping parts and the coated sand pieces, and the existing coated sand disintegration tester can only simply rotate to perform disintegration test, resulting in poor test effect, the present invention provides a coated sand disintegration tester and a test method that can avoid loose sand residue and improve the test effect, so as to improve the accuracy of the test results.

[0006] The coated sand disintegration detection machine includes a fixed frame, the fixed frame is fixedly connected to an electronic scale, a collecting frame is placed on the electronic scale, the fixed frame is fixedly connected to a heating cylinder, the side of the heating cylinder close to the collecting frame is a conical funnel structure, the heating cylinder is rotatably connected to a baffle, and also includes symmetrically arranged guide rods, the symmetrically arranged guide rods are fixedly connected in the heating cylinder, sliding plates are slidably connected between the symmetrically arranged guide rods, the sliding plates are rotatably connected to rotating rods, the rotating rods are fixedly connected to elastic clamping rods equidistantly distributed in the circumferential direction, fixing rings are slidably connected between the symmetrically arranged guide rods, the fixing rings are sleeved on the elastic clamping rods, the side of the guide rods close to the sliding plate is fixedly connected to a cross bar, the rotating rod has a spiral groove, the cross bar and the rotating rod are slidably connected through the spiral groove, the moving plate is provided with an adjusting component for adjusting the locking tightness of the elastic clamping rod, and the heating cylinder is provided with a vibration component for controlling the up and down vibration of the sliding plate.

[0007] In one embodiment, the baffle is fixedly connected to a handle.

[0008] In one embodiment, the adjustment component includes an adjustment rod, which is rotatably connected to a sliding plate. The adjustment rod is slidably connected to a rotating block, which is inserted into the sliding plate. A pull wire is wound around the adjustment rod, and the tail end of the pull wire is connected to a fixed ring.

[0009] In one embodiment, the vibration assembly includes a connecting plate, which is slidably connected to the heating tube, the connecting plate is connected to the sliding plate, a contact rod is fixedly connected to the side of the connecting plate away from the sliding plate, a mounting frame is fixedly connected to the top of the heating tube, the mounting frame is fixedly connected to the driving motor, the output shaft of the driving motor is fixedly connected to a turntable, and the turntable is fixedly connected to pushing blocks that are equidistantly distributed around the circumference.

[0010] In one embodiment, the push block is wedge-shaped, the contact rod is a horizontal structure, and the push block and the contact rod are pressed together.

[0011] In one of the embodiments, it also includes a knocking component for knocking on the outer wall of the heating tube to shake off the loose sand. The knocking component is arranged on the heating tube, and the knocking component includes fixed blocks distributed equidistantly in the circumferential direction, the fixed blocks distributed equidistantly in the circumferential direction are fixedly connected to the heating tube, the fixed blocks are rotatably connected to a knocking plate, a torsion spring is connected between the knocking plate and the adjacent fixed blocks, the heating tube is slidably connected to a pushing ring, the pushing ring is fixedly connected to an L-shaped block, a square block is fixedly connected to the side of the connecting plate close to the L-shaped block, and the square block is squeezed and fitted with the L-shaped block.

[0012] In one embodiment, the side of the knocking plate away from the push ring is an elliptical rubber block for knocking the outer wall of the heating tube, and the side of the knocking plate close to the push ring is an inwardly bent structure for extrusion cooperation with the push ring.

[0013] In one of the embodiments, it also includes a blowing assembly for blowing air to clean the loose sand remaining on the coated sand pieces and the elastic clamping rods. The blowing assembly is arranged on the heating cylinder. The blowing assembly includes an air outlet pipe, which is fixedly connected to the heating cylinder. The heating cylinder is fixedly connected to a cylinder body, a piston rod is slidably connected to the cylinder body, the piston rod is connected to a connecting plate, a connecting pipe with a one-way valve is connected between the cylinder body and the air outlet pipe, and the cylinder body is connected to an air inlet pipe with a one-way valve.

[0014] In one of the embodiments, a cleaning assembly is also included for scraping off loose sand remaining in the conical funnel at the bottom of the heating tube. The cleaning assembly is arranged on the rotating rod. The cleaning assembly includes spring telescopic rods equidistantly distributed circumferentially. The spring telescopic rods equidistantly distributed circumferentially are fixedly connected to the rotating rod. The telescopic ends of the spring telescopic rods are fixedly connected with arc-shaped scrapers, and the arc-shaped scrapers are in contact with the inner wall of the heating tube.

[0015] The method for testing the disintegration of coated sand is as follows:

[0016] S1: Heating: Place the coated sand piece into the elastic clamp rod and limit it, and heat it through the heating tube;

[0017] S2: Collapse: The contact rod and the push block cooperate to control the coated sand piece to vibrate up and down, and the cross bar and the rotating rod cooperate to control the coated sand piece to rotate and throw out the loose sand. The knocking plate knocks the outer wall of the heating cylinder, the air outlet pipe blows from top to bottom, and the arc scraper moves up and down to clean up the loose sand remaining in various places;

[0018] S3: Weighing: The dispersed sand falls into the collection frame and is weighed by an electronic scale. The disintegration performance of the coated sand is calculated based on the proportion of the dispersed sand.

[0019] The present invention has the following advantages:

[0020] 1. Put the coated sand piece into the elastic clamp rod and heat it with the heating tube. When the elastic clamp rod moves up and down and rotates forward and backward, the coated sand piece will also roll in the elastic clamp rod to improve the detection effect and ensure that all the loose sand falls down. At the same time, it can also better throw out the scattered sand, reduce the residual loose sand, and improve the detection accuracy. The scattered sand falls down to the collection frame for weighing. The collapsing performance of the coated sand can be obtained according to the proportion of the collapsed loose sand.

[0021] 2. The knocking plate rotates continuously to knock on the outer wall of the heating tube, thereby shaking off the loose sand remaining on the inner wall of the heating tube, avoiding the loose sand remaining on the inner wall of the heating tube and causing inaccurate test results.

[0022] 3. The piston rod continuously slides up and down to make the air outlet pipe blow air downward, cleaning the loose sand remaining on the elastic clamp rod and the coated sand parts downward to improve the accuracy of the detection.

[0023] 4. The arc-shaped scraper moves up and down to scrape off the loose sand remaining in the conical funnel at the bottom of the heating cylinder, further improving the accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the fixing frame, electronic scale, collecting frame, heating cylinder and baffle of the present invention.

[0026] Figure 3 It is a schematic cross-sectional view of the heating tube, guide rod, sliding plate, rotating rod and other components of the present invention.

[0027] Figure 4 It is a three-dimensional structural schematic diagram of the sliding plate, rotating rod, elastic clamping rod and fixing ring of the present invention.

[0028] Figure 5 It is a schematic diagram of the partial three-dimensional structure of the regulating component of the present invention.

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the vibration component of the present invention.

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the striking component of the present invention.

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of the fixing block, the knocking plate and the torsion spring of the present invention.

[0032] Fig. 9 It is a schematic diagram of the three-dimensional structure of the blowing assembly of the present invention.

[0033] Fig.10 It is a schematic cross-sectional view of the air outlet pipe, cylinder body, piston rod, connecting pipe and air inlet pipe of the present invention.

[0034] Fig.11 It is a schematic diagram of the three-dimensional structure of the cleaning component of the present invention.

[0035] Marked in the figure: 1-fixed frame, 2-electronic scale, 201-collecting frame, 3-heating cylinder, 4-baffle, 5-guide rod, 6-sliding plate, 7-rotating rod, 71-elastic clamping rod, 8-fixing ring, 9-cross bar, 10-adjusting rod, 11-rotating block, 12-pull wire, 13-connecting plate, 131-contact rod, 14-mounting frame, 15-drive motor, 16-turntable, 161-pushing block, 17-fixed block, 18-knocking plate, 181-torsion spring, 19-pushing ring, 191-L-shaped block, 20-square block, 21-exhaust pipe, 22-cylinder body, 23-piston rod, 24-connecting pipe, 241-intake pipe, 25-spring telescopic rod, 26-arc scraper. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope and application scope of the present invention are not limited.

[0037] Embodiment 1: Coated sand disintegration test machine, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes a fixing frame 1, an electronic scale 2, a collection frame 201, a heating cylinder 3, a baffle 4, a guide rod 5, a sliding plate 6, a rotating rod 7, an elastic clamping rod 71, a fixing ring 8, a cross bar 9, an adjustment component and a vibration component. The lower part of the fixing frame 1 is fixedly connected to the electronic scale 2, and the collection frame 201 is placed on the upper side of the electronic scale 2. The upper part of the fixing frame 1 is fixedly connected to the heating cylinder 3, and the lower part of the heating cylinder 3 is a conical funnel structure. The front side of the heating cylinder 3 is rotatably connected to the baffle 4, and the left part of the front side of the baffle 4 is fixedly connected to a handle. The left and right parts of the heating cylinder 3 are fixedly connected to the guide rod 5. The left and right guide rods 5 is slidably connected with a sliding plate 6, a rotating rod 7 is rotatably connected with the middle of the sliding plate 6, and an elastic clamping rod 71 equidistantly distributed in the circumferential direction is fixedly connected to the upper part of the rotating rod 7, a fixing ring 8 is slidably connected between the upper parts of the left and right guide rods 5, and the fixing ring 8 is sleeved on the elastic clamping rod 71, a cross bar 9 is fixedly connected to the lower part of the left guide rod 5, a spiral groove is opened at the lower part of the rotating rod 7, and the cross bar 9 is slidably connected to the rotating rod 7 through the spiral groove, an adjusting component for adjusting the locking tightness of the elastic clamping rod 71 is provided on the sliding plate 6, and a vibration component for controlling the up and down vibration of the sliding plate 6 is provided on the heating cylinder 3.

[0038] When using the device, the staff controls the baffle plate 4 to rotate forward and open it by the handle, and then puts the coated sand piece into the elastic clamp rod 71, controls the fixing ring 8 to slide downward by the adjustment component, and the fixing ring 8 slides downward to control the elastic clamp rod 71 to retract inward to confine the coated sand piece, and then closes the baffle plate 4, and heats the coated sand piece by the heating cylinder 3. After heating and cooling, the sliding plate 6 is driven to slide up and down by the vibration component, and the sliding plate 6 slides up and down to drive the rotating rod 7 and the elastic clamp rod 71 to move up and down, thereby driving the coated sand piece to vibrate up and down. When the rotating rod 7 moves up and down, it will also cooperate with the cross bar 9 to perform Positive and negative rotation can make the coated sand pieces tumble in the elastic clamping rod 71 through vibration and rotation, providing better detection effect for the coated sand pieces, ensuring that all the scattered sand on the coated sand pieces falls off, and at the same time, the scattered sand can be better thrown out, and the hollow structure composed of multiple elastic clamping rods 71 ​​can also make the scattered sand leak out better, reducing the residual scattered sand, and the scattered sand falls downward through the funnel structure at the bottom of the heating tube 3 and gathers and falls into the collection frame 201, avoiding the splashing and loss of scattered sand to affect the test accuracy, and the scattered sand is weighed by the electronic scale 2, and the disintegration performance of the coated sand is known according to the proportion of the scattered sand.

[0039] like Figure 1 and Figure 6 As shown, the vibration assembly includes a connecting plate 13, a contact rod 131, a mounting frame 14, a driving motor 15, a turntable 16 and a pushing block 161. The left portion of the heating cylinder 3 is slidably connected to the connecting plate 13, the lower portion of the connecting plate 13 is connected to the left portion of the sliding plate 6, the upper portion of the connecting plate 13 is fixedly connected to the contact rod 131, the upper side of the heating cylinder 3 is fixedly connected to the mounting frame 14, the mounting frame 14 is fixedly connected to the driving motor 15, the output shaft of the driving motor 15 is fixedly connected to the turntable 16, the turntable 16 is fixedly connected to the pushing blocks 161 equidistantly distributed in the circumferential direction, the pushing blocks 161 are wedge-shaped, the contact rod 131 is a horizontal structure, and the pushing blocks 161 are squeezed and fitted with the contact rod 131.

[0040] By setting a vibration component, the coated sand piece can be controlled to vibrate up and down, so that the coated sand piece can be better disintegrated. The specific operation is as follows: the staff starts the driving motor 15, the output shaft of the driving motor 15 rotates to drive the turntable 16 to rotate, the turntable 16 rotates to drive the push block 161 to rotate, when the push block 161 rotates to contact the contact rod 131, the push block 161 continues to rotate to squeeze the contact rod 131 to move upward, the contact rod 131 moves upward to drive the connecting plate 13 to slide upward, and the connecting plate 13 slides upward to drive the sliding plate 6 When the push block 161 is rotated to be disengaged from the contact rod 131, the connecting plate 13, the contact rod 131, the sliding plate 6, the rotating rod 7, the elastic clamping rod 71 and the coated sand piece move downward under the action of gravity. When the next pushing block 161 is rotated to be in contact with the contact rod 131, the above-mentioned action is repeated to make the coated sand piece vibrate up and down continuously, so that the coated sand piece can be better collapsed. When the device is used, the staff turns off the driving motor 15.

[0041] like Figure 3 , Figure 4 and Figure 5 As shown, the adjustment component includes an adjustment rod 10, a rotating block 11 and a pull wire 12. The right part of the sliding plate 6 is rotatably connected to the adjustment rod 10, and the rotating block 11 is slidably connected to the adjusting rod 10. The rotating block 11 is inserted into the sliding plate 6. The rear part of the adjustment rod 10 is wound with a pull wire 12, and the tail end of the pull wire 12 is connected to the fixed ring 8.

[0042] The position of the fixing ring 8 can be adjusted by setting an adjusting component, and then the locking tightness of the elastic clamping rod 71 can be adjusted to better fix the coated sand piece. The specific operation is as follows: when the coated sand piece is placed in the elastic clamping rod 71, the staff pulls the rotating block 11 to slide forward on the adjusting rod 10. After the rotating block 11 slides forward, it no longer gets stuck in the sliding plate 6. At this time, the staff can control the adjusting rod 10 to rotate, and the adjusting rod 10 rotates the winding pull wire 12, and then the fixing ring 8 is driven to slide downward through the pull wire 12. The fixing ring 8 slides downward to squeeze the elastic clamping rod 71 to retract inward, and then it is close to the coated sand piece to fix it. When the elastic clamping rod 71 fixes the coated sand piece, the staff pushes the rotating block 11 to slide backward, and the rotating block 11 slides backward and gets stuck in the sliding plate 6, thereby fixing the adjusting rod 10, so that the elastic clamping rod 71 remains in a state of being close to the coated sand piece for fixing.

[0043] Embodiment 2: Based on embodiment 1, Figure 1 , Figure 7 and Figure 8 As shown, it also includes a knocking component for knocking the outer wall of the heating tube 3 to shake off the loose sand, the knocking component includes a fixed block 17, a knocking plate 18, a torsion spring 181, a push ring 19, an L-shaped block 191 and a square block 20, the upper part of the heating tube 3 is fixedly connected with four circumferentially equidistantly distributed fixed blocks 17, the fixed block 17 is rotatably connected with the knocking plate 18, the knocking plate 18 and the adjacent fixed block 17 are connected with a torsion spring 181, the upper side of the heating tube 3 is slidably connected with the push ring 19, the lower part of the knocking plate 18 is an elliptical rubber block for knocking the outer wall of the heating tube 3, the upper part of the knocking plate 18 is an inwardly bent structure for extrusion cooperation with the push ring 19, the left part of the push ring 19 is fixedly connected with the L-shaped block 191, the upper part of the connecting plate 13 is fixedly connected with the square block 20, and the square block 20 is extrusion-fitted with the L-shaped block 191.

[0044] By setting a knocking component, the outer wall of the heating tube 3 can be knocked to prevent loose sand from remaining on the inner wall of the heating tube 3 and causing inaccurate detection results. The specific operation is as follows: the connecting plate 13 slides upward to drive the square block 20 to move upward, the square block 20 moves upward to squeeze the L-shaped block 191 to move upward, the L-shaped block 191 moves upward to drive the pushing ring 19 to slide upward, the pushing ring 19 slides upward to squeeze the upper part of the knocking plate 18 to swing outward, and the lower part of the knocking plate 18 swings inward to knock the outer wall of the heating tube 3, the torsion spring 181 is deformed, and when the connecting plate 13 drives the square block 20 to move downward, under the action of the torsion spring 181 resetting, the knocking plate 18 is reversed and reset accordingly, and when the knocking plate 18 is reversed, it will also squeeze the push ring 19 to slide downward and reset, and when the connecting plate 13 slides upward again, repeating the above action can make the knocking plate 18 continuously knock on the outer wall of the heating tube 3, thereby shaking off the loose sand remaining on the inner wall of the heating tube 3.

[0045] like Figure 1 , Fig. 9 and Fig.10 As shown, it also includes an air blowing assembly for blowing air to clean the loose sand remaining on the coated sand pieces and the elastic clamping rod 71, the air blowing assembly includes an air outlet pipe 21, a cylinder body 22, a piston rod 23, a connecting pipe 24 and an air inlet pipe 241, the air outlet pipe 21 is fixedly connected to the upper side of the heating cylinder 3, the cylinder body 22 is fixedly connected to the left front part of the upper side of the heating cylinder 3, the cylinder body 22 is slidably connected to the piston rod 23, the piston rod 23 is connected to the connecting plate 13, the lower side of the cylinder body 22 and the air outlet pipe 21 are connected by a connecting pipe 24 with a one-way valve, and the lower side of the cylinder body 22 is connected to an air inlet pipe 241 with a one-way valve.

[0046] By setting up an air blowing component, air can be blown from top to bottom to clean up the loose sand remaining on the elastic clamping rod 71 and the coated sand pieces, so as to improve the accuracy of detection. The specific operation is as follows: the connecting plate 13 slides up and down to drive the piston rod 23 to slide up and down, the piston rod 23 slides upward to inhale air into the cylinder body 22 through the air inlet pipe 241, and when the piston rod 23 slides downward, the air in the cylinder body 22 is squeezed into the air outlet pipe 21 through the connecting pipe 24, and then air is blown downward from the air outlet pipe 21 to clean up the loose sand remaining on the elastic clamping rod 71 and the coated sand pieces, so as to improve the accuracy of detection.

[0047] like Fig.11 As shown, it also includes a cleaning component for scraping off the loose sand remaining in the conical funnel at the bottom of the heating tube 3. The cleaning component includes a spring telescopic rod 25 and an arc scraper 26. Three spring telescopic rods 25 equidistantly distributed in the circumferential direction are fixedly connected to the lower part of the rotating rod 7. The telescopic end of the spring telescopic rod 25 is fixedly connected to the arc scraper 26, and the arc scraper 26 is in contact with the inner wall of the heating tube 3.

[0048] By setting up a cleaning component, the loose sand remaining in the conical funnel at the bottom of the heating tube 3 can be scraped off, further reducing the residual loose sand. The specific operation is as follows: when the rotating rod 7 moves up and down, it will also drive the arc scraper 26 to move up and down through the spring telescopic rod 25. The up and down movement of the arc scraper 26 can scrape off the loose sand remaining in the conical funnel at the bottom of the heating tube 3, further improving the accuracy of the detection. When the arc scraper 26 moves up and down, under the action of the extension and retraction of the spring telescopic rod 25, the arc scraper 26 can maintain a state of being in contact with the inner wall of the heating tube 3, thereby ensuring the cleaning effect.

[0049] Example 3: Based on Examples 1 and 2, a method for detecting the collapsibility of coated sand is provided, wherein the steps are as follows:

[0050] S1: Heating: The coated sand piece is placed in the elastic clamp rod 71 and is limited in position, and heated by the heating cylinder 3;

[0051] S2: Collapse: The contact rod 131 cooperates with the push block 161 to control the coated sand piece to vibrate up and down, and the cross bar 9 cooperates with the rotating rod 7 to control the coated sand piece to rotate and throw out the loose sand. The knocking plate 18 knocks on the outer wall of the heating cylinder 3, the air outlet pipe 21 blows air from top to bottom, and the arc scraper 26 moves up and down to clean up the loose sand remaining in various places, so as to improve the detection accuracy;

[0052] S3: Weighing: The dispersed sand falls into the collection frame 201 and is weighed by the electronic scale 2. The disintegration performance of the coated sand is obtained based on the proportion of the dispersed sand.

[0053] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coated sand collapsibility testing machine, comprising a fixed frame (1), the fixed frame (1) being fixedly connected to an electronic scale (2), a collecting frame (201) being placed on the electronic scale (2), a heating cylinder (3) being fixedly connected to the fixed frame (1), a side of the heating cylinder (3) close to the collecting frame (201) being a conical funnel structure, and a baffle (4) being rotatably connected to the heating cylinder (3), characterized in that: The heating tube (3) further comprises guide rods (5) which are symmetrically arranged, the guide rods (5) being fixedly connected in the heating tube (3), a sliding plate (6) being slidably connected between the guide rods (5), a rotating rod (7) being rotatably connected to the sliding plate (6), the rotating rod (7) being fixedly connected to elastic clamping rods (71) which are equidistantly distributed in the circumferential direction, a fixing ring (8) being slidably connected between the guide rods (5), the fixing ring (8) being sleeved on the elastic clamping rod (71), a cross bar (9) being fixedly connected on one side of the guide rod (5) close to the sliding plate (6), the rotating rod (7) being provided with a spiral groove, the cross bar (9) being slidably connected to the rotating rod (7) via the spiral groove, the moving plate (6) being provided with an adjusting component for adjusting the locking tightness of the elastic clamping rod (71), and the heating tube (3) being provided with a vibration component for controlling the upward and downward vibration of the sliding plate (6); The vibration assembly comprises a connecting plate (13), the connecting plate (13) is slidably connected to the heating cylinder (3), the connecting plate (13) is connected to the sliding plate (6), a contact rod (131) is fixedly connected to the side of the connecting plate (13) away from the sliding plate (6), a mounting frame (14) is fixedly connected to the top of the heating cylinder (3), the mounting frame (14) is fixedly connected to a driving motor (15), the output shaft of the driving motor (15) is fixedly connected to a rotating disk (16), and the rotating disk (16) is fixedly connected to pushing blocks (161) distributed equidistantly in the circumferential direction; The adjusting assembly comprises an adjusting rod (10), the adjusting rod (10) is rotatably connected to a sliding plate (6), the adjusting rod (10) is slidably connected to a rotating block (11), the rotating block (11) is inserted into the sliding plate (6), a pull wire (12) is wound around the adjusting rod (10), and the tail end of the pull wire (12) is connected to a fixing ring (8); The pushing block (161) is wedge-shaped, the contact rod (131) is a horizontal structure, and the pushing block (161) and the contact rod (131) are pressed and matched; The invention also comprises an air blowing assembly for cleaning loose sand remaining on the coated sand piece and the elastic clamping rod (71) by blowing air. The air blowing assembly is arranged on the heating cylinder (3). The air blowing assembly comprises an air outlet pipe (21). The air outlet pipe (21) is fixedly connected to the heating cylinder (3). The heating cylinder (3) is fixedly connected to a cylinder body (22). A piston rod (23) is slidably connected to the cylinder body (22). The piston rod (23) is connected to the connecting plate (13). A connecting pipe (24) with a one-way valve is connected between the cylinder body (22) and the air outlet pipe (21). The cylinder body (22) is connected to an air inlet pipe (241) with a one-way valve.

2. The coated sand collapsibility detection machine according to claim 1, characterized in that: The baffle (4) is fixedly connected with a handle.

3. The coated sand collapsibility detection machine according to claim 1, characterized in that: The invention also comprises a knocking assembly for knocking the outer wall of the heating tube (3) to shake off the loose sand. The knocking assembly is arranged on the heating tube (3). The knocking assembly comprises fixed blocks (17) distributed equidistantly in the circumferential direction. The fixed blocks (17) distributed equidistantly in the circumferential direction are fixedly connected to the heating tube (3). The fixed blocks (17) are rotatably connected to a knocking plate (18). A torsion spring (181) is connected between the knocking plate (18) and the adjacent fixed blocks (17). The heating tube (3) is slidably connected to a push ring (19). The push ring (19) is fixedly connected to an L-shaped block (191). A square block (20) is fixedly connected to a side of the connecting plate (13) close to the L-shaped block (191). The square block (20) is extrusion-matched with the L-shaped block (191).

4. The coated sand disintegration detection machine according to claim 3, characterized in that: The side of the knocking plate (18) away from the pushing ring (19) is an elliptical rubber block for knocking the outer wall of the heating tube (3), and the side of the knocking plate (18) close to the pushing ring (19) is an inwardly bent structure for extrusion-matching with the pushing ring (19).

5. The coated sand collapsibility detection machine according to claim 1, characterized in that: The invention also comprises a cleaning assembly for scraping off loose sand remaining in the conical funnel at the bottom of the heating cylinder (3); the cleaning assembly is arranged on the rotating rod (7); the cleaning assembly comprises spring telescopic rods (25) equidistantly distributed in the circumferential direction; the spring telescopic rods (25) equidistantly distributed in the circumferential direction are fixedly connected to the rotating rod (7); the telescopic ends of the spring telescopic rods (25) are fixedly connected to arc-shaped scrapers (26); the arc-shaped scrapers (26) are in contact with the inner wall of the heating cylinder (3).

6. A method for detecting the disintegration of coated sand, characterized in that: The method is applied to the coated sand collapsibility detection machine described in any one of claims 1 to 5 above, and the steps are as follows: S1: Heating: The coated sand piece is placed in the elastic clamping rod (71) for limiting, and heated by the heating cylinder (3); S2: Scattering: The contact rod (131) and the push block (161) cooperate to control the coated sand piece to vibrate up and down, and the cross bar (9) and the rotating rod (7) cooperate to control the coated sand piece to rotate and throw out the loose sand, the knocking plate (18) knocks the outer wall of the heating cylinder (3), the air outlet pipe (21) blows air from top to bottom, and the arc scraper (26) moves up and down, all of which are used to clean up the loose sand remaining in various places; S3: Weighing: The dispersed loose sand falls downward into the collection frame (201) and is weighed by the electronic scale (2). The disintegration performance of the coated sand is calculated based on the proportion of the dispersed loose sand.

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