A vibrator type inertial vibration sand-falling machine

Abstract

The present invention relates to the technical field of sand-dropping machine equipment, and discloses an exciter-type inertial vibration sand-dropping machine, comprising a base, a vibration structure and a screening structure; the base is rectangular, the vibration structure is fixedly arranged on the upper wall of the base, and the screening structure is fixedly arranged on the vibration structure; the present invention has a high-efficiency screening effect; through the synergistic effect of the first vibration component and the second vibration component, the vibration effect of the first screen plate can be improved, and the overall solution can be assembled and structured according to different needs, providing flexibility and customization possibilities to meet the needs of different users and different application scenarios; by setting a toggle structure, especially the design of a toggle rod, it can be reciprocated and tilted under the screen plate, so that the toggle rod can be inserted into the screen hole under the elastic force, effectively preventing the blockage of the screen hole and ensuring the continuity and stability of the screening process.

Description

Technical Field

[0001] The invention relates to the technical field of sand shakeout machine equipment, in particular to an exciter type inertial vibration sand shakeout machine. Background Art

[0002] The sand dropping of castings is one of the important processes in the sand casting production process. Sand dropping means breaking the casting mold after it is poured and cooled to a certain temperature, so as to separate the casting mold from the sand box, that is, separating the casting from the molding sand. In recent years, although the sand dropping equipment has developed to a certain extent, its use effect is general, and the molding sand materials used in different castings are also different. If the molding sand is agglomerated due to the casting process of the profile, it is easy to block the sieve holes and cannot fall, and it will also affect the next use. In addition, the existing sand dropping machines all use their walking time to improve the effect of vibration separation. Therefore, a vibrator-type inertial vibration sand dropping machine is designed. Summary of the invention

[0003] The object of the present invention is to provide a vibrator-type inertial vibration sand-falling machine to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above problems, the present invention provides the following technical solutions: an exciter-type inertial vibration sand-falling machine, comprising a base, a vibration structure and a screening structure; the base is rectangular, the vibration structure is fixedly arranged on the upper wall of the base, and the screening structure is fixedly arranged on the vibration structure.

[0005] Preferably, the vibration structure includes two pairs of first vibration components, two pairs of adapter plates, a screening box, a pair of vibrators and a sand guide plate; the two pairs of the first vibration components are respectively fixedly arranged on the upper wall of the base and close to the four corners, the two pairs of adapter plates are L-shaped, one end of the two pairs of adapter plates are respectively fixedly arranged on the first vibration components and are symmetrical to each other, the screening box is fixedly arranged between the other ends of the two pairs of adapter plates, the screening box is a rectangular box without a lower wall and a right side wall, a pair of vibrators are respectively symmetrically and obliquely arranged in the middle of the front and rear side walls of the screening box, the sand guide plate is obliquely arranged below the screening box through two pairs of connecting rods, and the length of the connecting rod at the left end of the sand guide plate is greater than the length of the connecting rod at the right end.

[0006] Preferably, the first vibration assembly includes a lifting rod, a rod frame, a sleeve and a first spring; one end of the lifting rod is fixedly arranged on the middle part of the lower wall of one end of the adapter plate, one end of the rod frame is fixedly arranged on the upper wall of the base, and the other end of the rod frame is movably mounted on the other end of the lifting rod, and the other end of the rod frame can be lifted and moved relative to the lifting rod, the sleeve is fixedly mounted on the rod frame, and the first spring is movably mounted on the other end of the rod frame and is located between the sleeve and the adapter plate.

[0007] Preferably, the screening structure includes a plurality of second vibration components, a plurality of brackets, a plurality of first screen plates, a plurality of mounting bolts and a first guide plate; the plurality of second vibration components are the same as the first vibration components but have different heights, the plurality of second vibration components are equidistantly arranged on the center line of the upper wall of the sand guide plate, the plurality of brackets are respectively fixed on the second vibration components and are located below the screening box, the plurality of first screen plates are respectively fixed on the brackets by the plurality of mounting bolts and are attached to the lower wall of the screening box, the plurality of first screen plates block the lower wall of the screening box after being spliced, one end of the first guide plate is fixed on the right end of one of the first screen plates, and the other end of the first guide plate is inclined and located on the right side of the screening box.

[0008] Preferably, a toggle structure may also be installed on the base, and the toggle structure includes a plurality of second screen plates, a second material guide plate, a first electric slide rail, a hydraulic cylinder, an arm, a toggle assembly, a second electric slide rail and a tooth plate; the plurality of second screen plates are equidistantly arranged on the lower wall of the screening box and are relatively spliced, one end of the second material guide plate is fixedly arranged on the right end of one of the second screen plates and is located on the right side of the screening box, the first electric slide rail is fixedly arranged on the upper wall of the base and close to the front end, the first electric slide rail is located between the first vibration assemblies and in front of the sand guide plate, the hydraulic cylinder is fixedly arranged on the first electric slide rail and can move left and right through the first electric slide rail, the arm is L-shaped, one end of the arm is fixedly arranged on the telescopic end of the hydraulic cylinder, and the other end of the arm is located above the sand guide plate, the toggle assembly is fixedly arranged on the other end of the arm frame and is located below the second screen plate, the second electric slide rail is fixedly arranged on the other end of the arm frame and in front of the toggle assembly, and the tooth plate is fixedly arranged on the second electric slide rail.

[0009] Preferably, the toggle assembly includes a toggle frame, an axle, a gear, a plurality of toggle rods, a plurality of limit rods, a plurality of block seats and a plurality of second springs; the toggle frame is a rectangular frame, one end of the toggle frame is fixedly arranged on the other end of the arm frame, and the toggle frame is located below the second screen plate, two ends of the axle rod are respectively movably inserted through the middle of the front and rear side walls of the toggle frame, the gear is fixedly sleeved on the front end of the axle rod, and the gear can mesh with the gear plate, one ends of the plurality of toggle rods are respectively equidistantly fixedly sleeved on the axle rod, and one end of the toggle rod is movably located in the toggle frame, one ends of the plurality of limit rods are respectively equidistantly and symmetrically inserted through the left and right ends of the toggle frame, and respectively correspond to the toggle rods, the plurality of limit rods can be lifted and moved on the toggle frame and cannot be separated from the toggle frame, the plurality of block seats are respectively fixedly arranged on the top end of the limit rod, and are respectively located symmetrically on the left and right sides of the toggle rod, and the plurality of second springs are respectively movably sleeved on the limit rod, and are located between the lower wall of the block seat and the toggle frame.

[0010] Preferably, the relative side walls of the plurality of blocking seats are inclined wall surfaces and can fit with the shifting rod.

[0011] Preferably, the other end of the lever corresponds to the sieve holes of the second sieve plate, and the other end of the lever can be inserted into the sieve holes of the second sieve plate.

[0012] Preferably, the shifting lever can change the tilting direction by meshing the toothed plate with the gear.

[0013] The invention provides an exciter-type inertial vibration sand-falling machine, which has the following beneficial effects:

[0014] 1. It has efficient screening effect: through the synergistic effect of the first vibration component and the second vibration component, the vibration effect of the first screen plate can be improved, especially for thinner screen plates, the vibration amplitude is increased, thereby improving the screening efficiency and effect.

[0015] 2. Simple structure and easy operation: The use of vibration components and exciters mentioned in the solution simplifies the equipment structure, reduces operational complexity, and makes the equipment easier to maintain and operate.

[0016] 3. Flexible assembly options: The overall solution can be assembled and structured according to different needs, providing flexibility and customization possibilities to meet the needs of different users and different application scenarios.

[0017] 4. Prevent clogging of the sieve holes: By setting up a toggle structure, especially the design of the toggle rod, it can move back and forth and tilt under the sieve plate, so that the toggle rod can be inserted into the sieve hole under the elastic force, effectively preventing the sieve hole from being blocked and ensuring the continuity and stability of the screening process.

[0018] 5. Improve equipment durability: Through reasonable design, such as the use of springs and vibration components, the impact on the screen plate and the overall equipment can be reduced, thereby extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the first assembly structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the second assembly structure of the present invention.

[0021] Figure 3 It is a schematic diagram of the disassembled structure of the vibration structure of the present invention.

[0022] Figure 4 It is a schematic diagram of the split structure of the screening structure of the present invention.

[0023] Figure 5 It is a schematic diagram of the assembly structure of the toggle structure of the present invention.

[0024] Figure 6 For the present invention Figure 3 A partial enlarged view of point A in the figure.

[0025] Figure 7 For the present invention Figure 3 A partial enlarged view of point B in FIG.

[0026] Figure 8 For the present invention Figure 4 A partial enlarged view of point C in the figure.

[0027] Fig. 9 For the present invention Figure 5 A partial enlarged view of point D in the figure.

[0028] Fig.10 For the present invention Figure 5 A partial enlarged view of point E in the figure.

[0029] In the figure: 1. base; 2. vibration structure; 21. first vibration component; 211. lifting rod; 212. rod frame; 213. sleeve; 214. first spring; 22. adapter plate; 23. screening box; 24. vibrator; 25. sand guide plate; 3. screening structure; 31. second vibration component; 32. bracket; 33. first screen plate; 34. mounting bolt; 35. first guide plate; 4. toggle structure; 41. second screen plate; 42. second guide plate; 43. first electric slide rail; 44. hydraulic cylinder; 45. arm; 46. toggle component; 47. second electric slide rail; 48. gear plate; 461. toggle frame; 462. shaft; 463. gear; 464. toggle rod; 465. limit rod; 466. stop seat; 467. second spring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-10 The present invention provides a technical solution: an exciter-type inertial vibration sand-falling machine, comprising a base 1, a vibration structure 2 and a screening structure 3; the base 1 is rectangular, the vibration structure 2 is fixedly arranged on the upper wall of the base 1, and the screening structure 3 is fixedly arranged on the vibration structure 2; vibration screening is realized by the vibration structure, and the screening structure 3 is used to carry and separate the molding sand from the casting, and improve the overall vibration.

[0032] As a further solution of the present invention, the vibration structure 2 includes two pairs of first vibration components 21, two pairs of adapter plates 22, a screening box 23, a pair of exciters 24 and a sand guide plate 25; the two pairs of first vibration components 21 are respectively fixedly arranged on the upper wall of the base 1 and close to the four corners, the two pairs of adapter plates 22 are both L-shaped, one end of the two pairs of adapter plates 22 are respectively fixedly arranged on the first vibration components 21 and are symmetrical to each other, and the screening box 23 is fixedly arranged between the other ends of the two pairs of adapter plates 22. The screening box 23 is a rectangular box without a lower wall and a right side wall. A pair of vibrators 24 are symmetrically and obliquely arranged in the middle of the front and rear side walls of the screening box 23. The sand guide plate 25 is obliquely arranged below the screening box 23 through two pairs of connecting rods, and the length of the connecting rod at the left end of the sand guide plate 25 is greater than that at the right end. The screening box 23 is supported by the first vibration component 21, and the inertial vibration of the screening box 23 is used for screening with the help of the vibrator 24. The molding sand is discharged through the sand guide plate 25 to realize the separation of sand parts.

[0033] As a further solution of the present invention, the first vibration component 21 includes a lifting rod 211, a rod frame 212, a sleeve 213 and a first spring 214; one end of the lifting rod 211 is fixedly arranged in the middle of the lower wall of one end of the adapter plate 22, one end of the rod frame 212 is fixedly arranged on the upper wall of the base 1, and the other end of the rod frame 212 is movably sleeved on the other end of the lifting rod 211, and the other end of the rod frame 212 can be lifted and moved relative to the lifting rod 211, the sleeve 213 is fixedly sleeved on the rod frame 212, and the first spring 214 is movably sleeved on the other end of the rod frame 212 and is located between the sleeve 213 and the adapter plate 22; the lifting rod 211 can be lifted and moved in the rod frame 212 to compress the spring on the sleeve 213, thereby realizing the overall force vibration.

[0034] As a further solution of the present invention, the screening structure 3 includes a plurality of second vibration components 31, a plurality of brackets 32, a plurality of first screen plates 33, a plurality of mounting bolts 34 and a first guide plate 35; the plurality of second vibration components 31 are the same as the first vibration components 21 and have different heights, the plurality of second vibration components 31 are equidistantly arranged on the center line of the upper wall of the sand guide plate 25, the plurality of brackets 32 are fixedly arranged on the second vibration components 31 and are located below the screening box 23, the plurality of first screen plates 33 are fixedly arranged on the brackets 32 by a plurality of mounting bolts 34 and are attached to the lower wall of the screening box 23, the plurality of first screen plates 33 are spliced ​​to block the lower wall of the screening box 23, one end of the first guide plate 35 is fixedly arranged on the right end of one of the first screen plates 33, and the other end of the first guide plate 35 is tilted and located on the right side of the screening box 23; the support of the second vibration component 31 causes the first screen plate 33 to be driven by the screening box 23 to strengthen the vibration and improve the screening speed and screening effect, and the molded parts are exported through the first guide plate 35.

[0035] As a further solution of the present invention, a toggle structure 4 can also be installed on the base 1, and the toggle structure 4 includes a plurality of second screen plates 41, a second guide plate 42, a first electric slide rail 43, a hydraulic cylinder 44, an arm 45, a toggle assembly 46, a second electric slide rail 47 and a tooth plate 48; the plurality of second screen plates 41 are equidistantly arranged on the lower wall of the screening box 23 and are relatively spliced, one end of the second guide plate 42 is fixedly arranged on the right end of one of the second screen plates 41, and is located on the right side of the screening box 23, the first electric slide rail 43 is fixedly arranged on the upper wall of the base 1 and close to the front end, the first electric slide rail 43 is located between the first vibration assembly 21, and is located in front of the sand guide plate 25, the hydraulic cylinder 44 is fixedly arranged on the first electric slide rail 43 and can move left and right through the first electric slide rail 43, and the arm 45 is L-shaped, one end of the arm 45 is fixedly arranged on the telescopic end of the hydraulic cylinder 44, and the other end of the arm 45 is located above the sand guide plate 25, the toggle assembly 46 is fixedly arranged on the other end of the arm 45 and is located below the second screen plate 41, the second electric slide rail 47 is fixedly arranged on the other end of the arm 45 and is located in front of the toggle assembly 46, and the tooth plate 48 is fixedly arranged on the second electric slide rail 47; the toggle assembly 46 on the hydraulic cylinder 44 is driven by the first electric slide rail 43 to fit under the second screen plate 41 and move left and right, the sieve holes of the second screen plate 41 are cleaned to prevent blockage, and the tooth plate 48 is driven by the second electric slide rail 47 to move left and right to adjust the toggle rod 464 in the toggle assembly 46 to tilt to the left or right, and can contact the second screen plate 41 as the first electric slide rail 43 is driven.

[0036] As a further solution of the present invention, the toggle assembly 46 includes a toggle frame 461, an axle 462, a gear 463, a plurality of toggle rods 464, a plurality of limit rods 465, a plurality of stoppers 466 and a plurality of second springs 467; the toggle frame 461 is a rectangular frame, one end of the toggle frame 461 is fixedly arranged on the other end of the arm frame 45, and the toggle frame 461 is located below the second screen plate 41, the two ends of the axle 462 are respectively movable and penetrate the middle of the front and rear side walls of the toggle frame 461, the gear 463 is fixedly sleeved on the front end of the axle 462, and the gear 463 can engage with the tooth plate 48, one end of a plurality of toggle rods 464 are respectively equidistantly fixed and sleeved on the axle 462, and one end of the toggle rod 464 is movably located in the toggle frame 461, one end of a plurality of limit rods 465 are respectively equidistantly and symmetrically movable and penetrate the left and right ends of the toggle frame 461, and correspond to the toggle rod 464 respectively, and a plurality of limit rods 465 are respectively equidistantly and symmetrically movable and penetrate the left and right ends of the toggle frame 461, and correspond to the toggle rod 464 respectively, The positioning rods 465 can be lifted and lowered on the toggle frame 461 and cannot be separated from the toggle frame 461. A plurality of blocking seats 466 are fixedly arranged on the top of the limiting rod 465 and are symmetrically located on the left and right sides of the toggle rod 464. The opposite side walls of the plurality of blocking seats 466 are inclined wall surfaces and can fit with the toggle rod 464. A plurality of second springs 467 are movably mounted on the limiting rod 465 and are located between the lower wall of the blocking seat 466 and the toggle frame 461. With the driving of the first electric slide rail 43, when the toggle frame 461 is forced to move left and right, the toggle rod 464 contacts the lower wall of the second sieve plate 41 and is subjected to force, prompting the toggle rod 464 to flip and press on the blocking seat 466, and press down the second spring 467 to be subjected to force. When one end of the toggle rod 464 is inserted into the sieve hole of the second sieve plate 41, the second spring 467 reverse group is used to force one end of the toggle rod 464 to bounce into the sieve hole for cleaning.

[0037] As a further solution of the present invention, the other end of the lever 464 corresponds to the sieve holes of the second sieve plate 41, and the other end of the lever 464 can be inserted into the sieve holes of the second sieve plate 41 to clean the sieve holes according to design requirements.

[0038] As a further solution of the present invention, the lever 464 can change the tilting direction by engaging with the gear 463 through the tooth plate 48, so that the lever 464 can be moved back and forth for cleaning.

[0039] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process. The specific work is as follows.

[0040] Working principle 1: Through the stable support of the base 1, the molding sand and the profile can be poured into the screening box 23 in the vibration structure 2 so that it is located on the first screening plate; the vibration exciter 24 is controlled to drive and generate vibration force, which can cause the screening box 23 supported by the first vibration component 21 installed through the adapter plate 22 to vibrate, and at the same time drive the sand guide plate 25 and the first screening plate 33 in the screening structure 3 to vibrate;

[0041] The vibration of the screening box 23 will be lifted and moved in the rod frame 212 by the lifting rod 211, and the first spring 214 on the compression sleeve 213 will be compressed to achieve the inertial vibration effect, so that the screening box 23 can achieve enhanced vibration; the same principle is used to drive the first screen plate 33 fixed on the bracket 32 ​​by the mounting bolts 34 to vibrate by the second vibration component 31, so as to achieve sand leakage screening; and the first screen plate 33 will increase the vibration amplitude by the second vibration component 31 to improve the screening efficiency;

[0042] The sieved molding sand passes through the first sieve plate 33 and falls onto the sand guide plate 25 , and can be received and transported by tilting the sand guide plate 25 to the left due to vibration; and the profiles will stay in the screening box 23 or be discharged with the help of the first guide plate 35 due to vibration.

[0043] Working principle 2: Through the stable support of the base 1, the molding sand and the profile can be poured into the screening box 23 in the vibration structure 2 so that it is located on the first screening plate; the vibration exciter 24 is controlled to drive and generate vibration force, which can cause the screening box 23 supported by the first vibration component 21 installed through the adapter plate 22 to vibrate, and at the same time drive the sand guide plate 25 and the second screen plate 41 to vibrate;

[0044] The vibration of the screening box 23 will be lifted and moved in the rod frame 212 by the lifting rod 211, and the first spring 214 on the compression sleeve 213 will be compressed to achieve the inertial vibration effect, so that the screening box 23 can achieve enhanced vibration to achieve screening;

[0045] The sieved molding sand passes through the second sieve plate 41 and falls onto the sand guide plate 25. The sand guide plate 25 vibrates and tilts to the left to receive and transport the molding sand. The molding sand will stay on the second sieve plate 41 in the sieve box 23 or be discharged by the second guide plate 42 due to vibration.

[0046] During the vibration screening process, the hydraulic cylinder 44 can be driven to move back and forth left and right by controlling the first electric slide rail 43 in the toggle structure 4; when the hydraulic cylinder 44 moves to the right, the second electric slide rail 47 needs to be controlled to drive the tooth plate 48 to move to the right, and the tooth plate 48 is engaged with the gear 463 in the toggle assembly 46, and the tooth plate 48 is disengaged from the gear 463, driving the shaft 462 to rotate in the toggle frame 461, so that the multiple toggle rods 464 are tilted to the left and fit on the stopper 466 on the left side;

[0047] At this time, the hydraulic cylinder 44 can be driven to extend and drive the arm 45 to drive the toggle assembly 46 to rise, so that the toggle rod 464 is attached to the lower wall of the second sieve plate 41 and is located below the left end of the screening box 23, and the toggle rod 464 is pressed against the lower wall of the second sieve plate 41 and will flip again at a certain angle, and compress the second spring 467 under the stop seat 466 through the limit rod 465; then as the toggle rod 464 moves to the right, when the toggle rod 464 enters the sieve hole from the non-porous part of the second sieve plate 41, it will bounce into the sieve hole with the help of the second spring 467 to clean the sieve hole, and the lumped molding sand can be broken up and made to fall apart with the help of vibration; when the first electric slide rail 43 drives the toggle assembly 46 to move to the left, it will also move to the left with the help of the tooth plate 48 to drive the toggle rod 464 to flip and tilt to the right, so that it can fit with the stop seat 466 on the right, and can be used for cleaning in the same way as the above-mentioned operating principle.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An exciter-type inertial vibration sand-falling machine, characterized in that: It comprises a base (1), a vibration structure (2) and a screening structure (3); the base (1) is rectangular, the vibration structure (2) is fixedly arranged on the upper wall of the base (1), and the screening structure (3) is fixedly arranged on the vibration structure (2); The vibration structure (2) comprises two pairs of first vibration components (21), two pairs of adapter plates (22), a screening box (23), a pair of vibrators (24) and a sand guide plate (25); Two pairs of the first vibration components (21) are respectively fixedly arranged on the upper wall of the base (1) and near the four corners, the two pairs of adapter plates (22) are both L-shaped, one end of the two pairs of adapter plates (22) are respectively fixedly arranged on the first vibration components (21) and are symmetrical to each other, the screening box (23) is fixedly arranged between the other ends of the two pairs of adapter plates (22), the screening box (23) is a rectangular box without a lower wall and a right side wall, a pair of the exciters (24) are respectively symmetrically arranged obliquely at the middle of the front and rear side walls of the screening box (23), the sand guide plate (25) is obliquely arranged below the screening box (23) through two pairs of connecting rods, and the length of the connecting rod at the left end of the sand guide plate (25) is greater than the length of the connecting rod at the right end; The base (1) is also provided with a toggle structure (4), the toggle structure (4) comprising a plurality of second screen plates (41), a second material guide plate (42), a first electric slide rail (43), a hydraulic cylinder (44), an arm (45), a toggle assembly (46), a second electric slide rail (47) and a tooth plate (48); A plurality of second sieve plates (41) are equidistantly arranged on the lower wall of the screening box (23) and are relatively spliced; one end of the second material guide plate (42) is fixedly arranged on the right end of one of the second sieve plates (41) and is located on the right side of the screening box (23); the first electric slide rail (43) is fixedly arranged on the upper wall of the base (1) and close to the front end; the first electric slide rail (43) is located between the first vibration components (21) and is located in front of the sand guide plate (25); the hydraulic cylinder (44) is fixedly arranged on the first electric slide rail (43) and is capable of The arm (45) is L-shaped and moves left and right through the first electric slide rail (43). One end of the arm (45) is fixedly arranged on the telescopic end of the hydraulic cylinder (44), and the other end of the arm (45) is located above the sand guide plate (25). The toggle assembly (46) is fixedly arranged on the other end of the arm (45) and is located below the second screen plate (41). The second electric slide rail (47) is fixedly arranged on the other end of the arm (45) and is located in front of the toggle assembly (46). The tooth plate (48) is fixedly arranged on the second electric slide rail (47); The toggle assembly (46) comprises a toggle frame (461), a shaft (462), a gear (463), a plurality of toggle rods (464), a plurality of limit rods (465), a plurality of stop seats (466), and a plurality of second springs (467); The toggle frame (461) is a rectangular frame. One end of the toggle frame (461) is fixedly mounted on the other end of the arm frame (45), and the toggle frame (461) is located below the second screen plate (41). The two ends of the shaft rod (462) are respectively and movably penetrate the middle of the front and rear side walls of the toggle frame (461). The gear (463) is fixedly sleeved on the front end of the shaft rod (462), and the gear (463) is engaged with the tooth plate (48). One ends of a plurality of the toggle rods (464) are respectively and equidistantly fixedly sleeved on the shaft rod (462), and one end of the toggle rod (464) is movably located in the toggle frame (461). If One end of the limit rod (465) is symmetrically and equidistantly movable through the left and right ends of the toggle frame (461), and corresponds to the toggle rod (464) respectively. A plurality of the limit rods (465) can be lifted and moved on the toggle frame (461) and cannot be separated from the toggle frame (461). A plurality of the blocking seats (466) are fixedly arranged on the top of the limit rod (465) and are symmetrically located on the left and right sides of the toggle rod (464). A plurality of the second springs (467) are movably sleeved on the limit rod (465) and are located between the lower wall of the blocking seat (466) and the toggle frame (461).

2. The vibrator-type inertial vibration sand-falling machine according to claim 1, characterized in that: The first vibration component (21) comprises a lifting rod (211), a rod frame (212), a sleeve (213) and a first spring (214); One end of the lifting rod (211) is fixedly mounted on the middle part of the lower wall of one end of the adapter plate (22); one end of the rod frame (212) is fixedly mounted on the upper wall of the base (1); and the other end of the rod frame (212) is movably mounted on the other end of the lifting rod (211); the other end of the rod frame (212) can be lifted and moved relative to the lifting rod (211); the sleeve (213) is fixedly mounted on the rod frame (212); and the first spring (214) is movably mounted on the other end of the rod frame (212) and is located between the sleeve (213) and the adapter plate (22).

3. The vibrator-type inertial vibration sand-falling machine according to claim 1, characterized in that: The side walls opposite to the plurality of blocking seats (466) are all inclined wall surfaces and fit closely with the shifting rod (464).

4. The vibrator-type inertial vibration sand-falling machine according to claim 2, characterized in that: The other ends of the lever (464) respectively correspond to the sieve holes of the second sieve plate (41), and the other ends of the lever (464) can be inserted into the sieve holes of the second sieve plate (41).

5. The vibrator-type inertial vibration sand-falling machine according to claim 3, characterized in that: The shifting rod (464) engages with the gear (463) through the toothed plate (48) to change the tilting direction.

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