A kind of equipment for processing metal casting sand

Abstract

The invention relates to the technical field of vibration sand dropping, and specifically to a metal casting sand dropping processing equipment; the equipment comprises a base and a bottom plate above the base; the upper surface of the base is connected to the bottom plate by a spring; the upper surface of the bottom plate is fixedly connected to an outer cylinder with an outer hole by a support plate; the upper position of the outer cylinder is fixedly connected to and communicated with a feed box with an opening facing upward; the outer wall of the outer cylinder is symmetrically fixedly connected to a vibration motor; the inner wall of one end of the outer cylinder is rotationally sealed and connected to an annular plate, and the inner wall of the other end is rotationally sealed and connected to a circular plate; the invention drives the casting to move by rotating the inner cylinder inside the outer cylinder, so that the casting is vibrated to drop sand in different placement states, thereby improving the efficiency and thoroughness of the sand dropping on the casting, and at the same time, under the action of the centrifugal force generated by the circumferential movement of the casting, the sand particles can be quickly dropped off and moved out, so that the sand dropping efficiency of the casting is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of vibration sand dropping, in particular to a metal casting sand dropping processing device. Background Art

[0002] Sand casting is the process of producing castings by using clay-bonded sand as the modeling material. It is a process with a long history and is also the most widely used process. Molding sand is indispensable for casting. The molding sand is made into a model before casting. Usually after the sand casting is completed, when the casting is taken out, a large amount of molding sand will be adhered to the surface of the casting, and the sand needs to be removed before the casting can be used.

[0003] Vibrating sand shaker is a common casting sand treatment equipment. Vibrating sand shaker is a kind of equipment widely used in the foundry industry. It removes sand shells and other attachments on the surface of castings through vibration. Its working principle mainly relies on the vibration power generated by the vibration source. The vibration power is generally generated by the eccentric wheel or other mechanical device driven by the motor to generate unbalanced inertial force, causing the vibration table to vibrate. The vibration table is usually designed with sieve holes to facilitate the falling of sand particles. When the vibrating sand shaker is turned on, the vibration of the vibration table vibrates and impacts the bottom of the casting placed on the table, so that the adhesion of the sand shell or clay layer on the surface of the casting is overcome, and the sand particles gradually fall off the casting and fall into the collection system below through the sieve holes.

[0004] However, for some flat and heavy castings, even if the bottom of the casting is subjected to vibration force, the casting cannot be turned over. In this way, the sand grains at the bottom of the casting can fall off under the action of vibration and gravity after being loosened, while the loose sand grains on the top of the casting cannot fall off. The loose sand grains on the top of the casting cover the residual sand grains, which will also inhibit the loosening of the remaining sand grains on the top of the casting, further affecting the falling of the sand grains on the top of the casting, resulting in poor sand falling effect.

[0005] In view of this, in order to overcome the above technical problems, the present invention proposes a metal casting sand removal processing equipment to solve the above technical problems. Summary of the invention

[0006] In order to make up for the shortcomings of the prior art, the present invention proposes a sand-falling processing equipment for metal castings. The present invention drives the casting to move by rotating the inner cylinder inside the outer cylinder, so that the casting can vibrate and shake out the sand in different placement states, thereby improving the efficiency and thoroughness of sand falling on the casting. At the same time, under the action of the centrifugal force generated by the circumferential movement of the casting, the sand particles can fall off and be removed quickly, so that the sand-falling efficiency of the casting is further improved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a metal casting sand falling processing equipment described in the present invention comprises a base and a bottom plate above the base; the upper surface of the base is connected to the bottom plate by a spring; the upper surface of the bottom plate is fixedly connected to an outer cylinder with an outer hole through a support plate; the outer cylinder is fixedly connected to and communicated with a feed box with an opening facing upward at an upper position; the outer wall of the outer cylinder is symmetrically fixedly connected to a vibration motor; the inner wall of one end of the outer cylinder is rotatably sealed and connected to an annular plate, and the inner wall of the other end is rotatably sealed and connected to a circular plate; an inner cylinder with an inner hole is fixedly connected between the annular plate and the circular plate; both ends of the inner cylinder and the outer cylinder are openings; the inner diameter of the inner cylinder is adapted to the inner diameter of the annular plate; the outer wall of the inner cylinder is fixedly connected to a toggle plate; the toggle plate is arranged in contact with the inner wall of the outer cylinder; the circular plate is connected to a main motor on a side away from the inner cylinder; the main motor is fixedly connected to the bottom plate through a support arm.

[0008] Preferably, a square hole is provided through the center of the circular plate; a square rod is slidably connected in the square hole; the square rod is located at the central axis of the inner cylinder; the length of the square rod is adapted to the axial length of the outer cylinder; one end of the square rod is fixedly connected to the output shaft of the main motor.

[0009] Preferably, an intercepting plate is fixedly connected to the lower position of the inner wall of the feed box; the intercepting plate is composed of a combination of criss-crossing plates; a first sand-falling area is formed inside the feed box under the action of the intercepting plate; a second sand-falling area is formed between the outer wall of the inner tube and the inner wall of the outer tube; the casting can enter the second sand-falling area after initial sand falling in the first sand-falling area.

[0010] Preferably, the inner wall of the inner cylinder is movably connected to an arc plate at a lower position; the outer wall of the arc plate is arranged in contact with the inner wall of the lower half of the inner cylinder; and the arc plate can collect sand particles falling from above.

[0011] Preferably, the thickness of the arc-shaped plate becomes thinner as it moves away from the circular plate; and the sand particles on the arc-shaped plate flow out along one end of the inner cylinder away from the circular plate.

[0012] Preferably, the inner wall of the annular plate is fixedly connected to the horizontal bar along the radial direction; the square rod is provided with a horizontal groove at one end away from the main motor; the horizontal groove penetrates the lateral outer wall of the square rod; and the horizontal bar can enter into the horizontal groove.

[0013] Preferably, movable grooves are provided through two opposite inner walls of the transverse groove; an L-shaped block is slidably connected in the movable groove; the L-shaped block is connected to the outer wall of the square rod by an elastic rope; a guide surface is provided on one end of the L-shaped block close to the transverse groove and inclined toward the transverse bar; a clamping groove is provided through the transverse bar; the clamping groove is aligned with the movable groove after the transverse bar enters the transverse groove; and the end of the L-shaped block can be clamped into the clamping groove.

[0014] Preferably, the toggle plate is tilted between the outer wall of the inner cylinder and the inner wall of the outer cylinder; when the toggle plate moves from bottom to top, the vertical height of the toggle plate decreases as it moves away from the circular plate; when the toggle plate moves from top to bottom, the vertical height of the toggle plate decreases as it moves closer to the circular plate.

[0015] Preferably, the cross section of the toggle plate is corrugated; and the casting can move on the inclined toggle plate.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The present invention drives the casting to move by rotating the inner cylinder inside the outer cylinder, so that the casting can vibrate and shake out the sand in different placement states, thereby improving the efficiency and thoroughness of sand falling on the casting. At the same time, under the action of the centrifugal force generated by the circumferential movement of the casting, the sand particles can be quickly shed and removed, so that the sand falling efficiency of the casting is further improved.

[0018] 2. The present invention uses the first sand-falling zone to shake off the entire casting and the molding sand and then enter the second sand-falling zone, thereby preventing the entire casting from being stuck by the shifting plate, thereby making the casting sand-falling smoother.

[0019] 3. In the present invention, the arc plate collects the sand particles falling into the inner side of the inner cylinder, thereby preventing the sand particles inside the inner cylinder from returning to between the outer wall of the inner cylinder and the inner wall of the outer cylinder, so that the sand removal efficiency of the casting is further improved.

[0020] 4. In the present invention, during the rotation of the inner cylinder, the end of the L-shaped block is locked into the slot, so that the horizontal bar is locked into the horizontal slot, so that the horizontal bar cannot be separated from the square rod, and the inner cylinder cannot be moved out from the inside of the outer cylinder, further improving the stability of the inner cylinder moving inside the outer cylinder.

[0021] 5. The present invention enables the casting to move circumferentially around the inner cylinder and roll axially on the inner cylinder, thereby further changing the placement state of the casting, allowing the casting to vibrate and shed sand in more directions, so that the sand on the casting can fall off more thoroughly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Figure 1 is a stereogram of the present invention;

[0024] Figure 2 yes Figure 1 A three-dimensional image from another angle;

[0025] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0026] Figure 4 It is a three-dimensional diagram of the inner cylinder and the toggle plate in the present invention;

[0027] Figure 5 is an axial cross-sectional view of the present invention;

[0028] Figure 6 yes Figure 5 The enlarged view of point B in the middle;

[0029] Figure 7 It is a radial cross-sectional view of the present invention.

[0030] In the figure: base 1, spring 11, bottom plate 2, support plate 21, outer cylinder 3, outer hole 31, vibration motor 32, annular plate 33, circular plate 34, square hole 341, main motor 35, support arm 36, feed box 4, intercepting plate 41, plate 411, first sand falling area 42, inner cylinder 5, inner hole 51, second sand falling area 52, arc plate 53, toggle plate 6, square rod 7, transverse groove 71, movable groove 72, L-shaped block 73, elastic rope 74, guide surface 75, transverse bar 8, and card slot 81. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] like Figures 1 to 7 As shown, the present invention includes the following embodiments: Embodiment 1:

[0033] A metal casting sand removal processing equipment comprises a base 1 and a bottom plate 2 above the base 1; the upper surface of the base 1 is connected to the bottom plate 2 by a spring 11; the upper surface of the bottom plate 2 is fixedly connected to an outer cylinder 3 with an outer hole 31 through a support plate 21; the outer cylinder 3 is fixedly connected to and communicated with a feed box 4 with an opening facing upward at an upper position; the outer wall of the outer cylinder 3 is symmetrically fixedly connected to a vibration motor 32; the inner wall of one end of the outer cylinder 3 is rotatably sealed and connected to an annular plate 33, and the inner wall of the other end is rotatably sealed and connected to a circular plate 34; an inner cylinder 5 with an inner hole 51 is fixedly connected between the circular plate 33 and the circular plate 34; both ends of the inner cylinder 5 and the outer cylinder 3 are openings; the inner diameter of the inner cylinder 5 is adapted to the inner diameter of the annular plate 33; the outer wall of the inner cylinder 5 is fixedly connected to a toggle plate 6; the toggle plate 6 is arranged in contact with the inner wall of the outer cylinder 3; the circular plate 34 is connected to a main motor 35 on a side away from the inner cylinder 5; the main motor 35 is fixedly connected to the bottom plate 2 through a support arm 36.

[0034] In this embodiment, a square hole 341 is provided through the center of the circular plate 34; a square rod 7 is slidably connected in the square hole 341; the square rod 7 is located at the central axis position of the inner tube 5; the length of the square rod 7 is adapted to the axial length of the outer tube 3; one end of the square rod 7 is fixedly connected to the output shaft of the main motor 35.

[0035] During work, after the casting is completed, the staff will use a crane to move the casting box to the top of the feed box 4, and then open the bottom plate of the casting box, so that the casting and sand in the casting box enter the feed box 4 along the upper port of the feed box 4, and the lower port of the feed box 4 is connected with the inner side of the outer tube 3, so the casting and sand in the feed box 4 will enter between the inner side of the outer tube 3 and the outer side of the inner tube 5. As the casting box is located directly above the feed box 4, the vibration motor 32 starts to work, and the vibration motor 32 will transmit the vibration force to the outer tube 3 and the inner tube 5. The feed box 4 will vibrate with the vibration of the outer tube 3, and the sand on the casting will loosen under the vibration. During the vibration of the vibration motor 32, the main motor 35 will drive the square rod 7 to rotate The square rod 7 passes through the square hole 341 in the center of the circular plate 34, so the square rod 7 will drive the circular plate 34 to rotate during its rotation, and the circular plate 34 will drive the inner cylinder 5 to rotate during its rotation. Although the ends of the inner cylinder 5 and the outer cylinder 3 are both open, the ends of the inner cylinder 5 and the outer cylinder 3 are blocked by the annular plate 33 and the circular plate 34, so that the casting between the inner wall of the outer cylinder 3 and the outer wall of the inner cylinder 5 cannot be removed. As the circular plate 34 rotates, the circular plate 34 will drive the inner cylinder 5 to rotate, and the inner cylinder 5 will drive the toggle plate 6 on the outer wall to move synchronously during its rotation. There are multiple toggle plates 6, and the multiple toggle plates 6 are evenly distributed around the central axis of the inner cylinder 5. During the rotation of the inner cylinder 5, the toggle plate 6 will dial the casting at the connecting position of the feed box 4 and the outer cylinder 3 into the outer wall of the inner cylinder 5 and the outer cylinder 3. The casting moves between the outer wall of the inner cylinder 5 and the inner wall of the outer cylinder 3 as the toggle plate 6 is toggled. The toggle plate 6 on the outer wall of the inner cylinder 5 serves to limit the casting, so that the casting moves in the circumferential direction around the inner cylinder 5 under the toggle of the toggle plate 6. The casting moves from top to bottom as the inner cylinder 5 and the toggle plate 6 are toggled. The casting is in an upright position at the uppermost position of the outer wall of the inner cylinder 5, and is in an inverted position at the lowermost position of the outer wall of the inner cylinder 5. The casting is in a lateral state during the up and down movement. The casting undergoes a cyclic transformation of upright-sideways-inverted-sideways-upright under the toggle of the inner cylinder 5 and the toggle plate 6. During the movement of the casting in the space between the outer wall of the inner cylinder 5 and the inner wall of the outer cylinder 3, the vibration motor 32 will continuously vibrate The force is transmitted to the outer cylinder 3 and the inner cylinder 5, and finally the vibration force is transmitted to the casting. The casting will be vibrated in different placement states, so that the sand grains on the casting can be quickly detached, and the fallen sand grains will pass through the inner hole 51 on the inner cylinder 5 or the outer hole 31 on the outer cylinder 3 and fall into the upper surface of the bottom plate 2, and finally flow away along the edge of the bottom plate 2. The toggle plate 6 can also scrape the inner wall of the outer cylinder 3 in time during the movement of the inner wall of the outer cylinder 3, so as to scrape away the sand grains on the inner wall of the outer cylinder 3 in time. In addition, when the inner cylinder 5 rotates to drive the casting and the toggle plate 6 to rotate, the casting and the sand grains will be subjected to centrifugal force. The sand grains on the casting are easier to fall off under the action of centrifugal force. After falling off from the casting, the sand grains will quickly flow out along the outer hole 31 or the inner hole 51;The spring 11 between the bottom plate 2 and the base 1 serves the purpose of support and elastic connection, so that the vibration of the inner cylinder 5 and the outer cylinder 3 is maximized, and the purpose of vibration sand falling is achieved. After the casting completes the shedding of sand particles, the main motor 35 and the vibration motor 32 are stopped, and the circular plate 34 is pushed away from the main motor 35 by a thrust machine or other equipment, or the annular plate 33 is pulled away from the main motor 35. In the process of moving away from the main motor 35, the circular plate 34 will drive the square hole 341 to move along the square rod 7. When the toggle plate 6 does not break away from the inner wall of the outer cylinder 3, The circular plate 34 is controlled to move away from the main motor 35. The circular plate 34 pushes out the casting on the inner wall of the outer cylinder 3 during the process of moving away from the main motor 35. The inner cylinder 5 is moved out from the inner side of the outer cylinder 3 and a part of it is retained as the circular plate 34 pushes it. In this way, the part of the toggle plate 6 that has not moved out of the inner wall of the outer cylinder 3 supports the inner cylinder 5. Then, the main motor 35 is controlled to rotate at a low speed, so that the casting on the inner cylinder 5 falls off and is collected by the collection box below. The casting unloading process after sand falling is completed. After the casting unloading is completed, the circular plate 34 is controlled to move close to the main motor 35, so that the inner cylinder 5 returns to the inner side of the outer cylinder 3.

[0036] In this embodiment, the circular plate 34 has a certain thickness, so that the circular plate 34 can maintain sliding with the square rod 7 after the inner cylinder 5 is moved out of the outer cylinder 3, and it is also convenient to clean the inner cylinder 5 after it is moved out;

[0037] In this embodiment, the inner cylinder 5 rotates inside the outer cylinder 3 to drive the casting to move, so that the casting can be vibrated and sand can be shaken out in different placement states, thereby improving the efficiency and thoroughness of sand falling on the casting. At the same time, under the action of the centrifugal force generated by the circumferential movement of the casting, the sand particles can be quickly shed and removed, so that the sand falling efficiency of the casting is further improved. Embodiment 2:

[0038] The lower position of the inner wall of the feed box 4 is fixedly connected to an intercepting plate 41; the intercepting plate 41 is composed of criss-crossing plates 411; a first sand-falling area 42 is formed inside the feed box 4 under the action of the intercepting plate 41; a second sand-falling area 52 is formed between the outer wall of the inner tube 5 and the inner wall of the outer tube 3; the casting can enter the second sand-falling area 52 after preliminary sand-falling in the first sand-falling area 42.

[0039] During operation, after the casting box is controlled to move to the top of the feed box 4, the vibration motor 32 and the main motor 35 are controlled to work. The main motor 35 rotates at a low speed, and the vibration motor 32 rotates at a high speed. After the bottom plate of the casting box is opened, the whole piece of casting and the molding sand will enter the feed box 4 along the upper port of the feed box 4. The whole piece of casting and the molding sand will fall and be intercepted by the interception plate 41 at the lower position of the feed box 4. The interception plate 41 divides the lower position of the feed box 4 into a plurality of square falling areas, so that the whole piece of casting and the molding sand cannot continue to move downward if they are larger than the falling area. The whole piece of casting and the molding sand are intercepted on the interception plate 41. The plate 41 vibrates with the vibration, so that the whole casting and the molding sand are pre-vibrated and shaken out in the first sand-falling area 42, and the whole casting and the molding sand are shaken apart in the first sand-falling area 42, and finally a plurality of castings are formed, and the plurality of castings pass through the casting area and enter the second sand-falling area 52, and the casting moves circumferentially with the rotation of the inner tube 5 and the toggle plate 6, and shakes out in the second sand-falling area 52 under the continuous vibration of the vibration motor 32; in this embodiment, the whole casting and the molding sand are shaken apart in the first sand-falling area 42 and then enter the second sand-falling area 52, thereby preventing the whole casting from being stuck by the toggle plate 6, thereby making the casting shake out more smoothly. Embodiment 3:

[0040] The inner wall of the inner tube 5 is movably connected to the arc plate 53 at the lower position; the outer wall of the arc plate 53 is arranged in contact with the inner wall of the lower half of the inner tube 5; the arc plate 53 can collect sand particles falling from above.

[0041] In this embodiment, the thickness of the arc plate 53 becomes thinner as it moves away from the circular plate 34 ; the sand particles on the arc plate 53 flow out along the end of the inner tube 5 away from the circular plate 34 .

[0042] During operation, after the casting and sand enter the feed box 4, the sand on the casting will enter between the outer wall of the inner cylinder 5 and the inner wall of the outer cylinder 3 under the action of its own gravity. Due to the shielding of the toggle plate 6 in the second sand falling area 52, the sand in the feed box 4 will continue to move downward and pass through the inner hole 51 to fall into the inner side of the inner cylinder 5, and finally fall onto the upper surface of the arc plate 53 for collection. Since the arc plate 53 is movably connected to the inner wall of the inner cylinder 5, the arc plate 53 is also located at the lower position of the inner side of the inner cylinder 5 when the inner cylinder 5 rotates, so that the arc plate 53 is always located directly below the feed box 4, realizing the feed box 4. The sand particles dropped from the material box 4 are collected. In addition, when the casting in the second sand dropping area 52 moves to the position just above the arc plate 53, the sand particles on the casting will also pass through the inner hole 51 and fall on the upper surface of the arc plate 53. The arc plate 53 collects the sand particles that fall into the inner side of the inner cylinder 5, thereby preventing the sand particles inside the inner cylinder 5 from returning to between the outer wall of the inner cylinder 5 and the inner wall of the outer cylinder 3, so that the sand dropping efficiency of the casting is further improved; the sand particles on the arc plate 53 move away from the circular plate 34 due to vibration and its own gravity, and finally flow out along the inner side of the inner cylinder 5 away from the end of the circular plate 34. Embodiment 4:

[0043] The inner wall of the annular plate 33 is fixedly connected to the horizontal bar 8 along the radial direction; the square rod 7 is provided with a horizontal groove 71 at one end away from the main motor 35; the horizontal groove 71 penetrates the lateral outer wall of the square rod 7; and the horizontal bar 8 can enter into the horizontal groove 71.

[0044] In this embodiment, movable grooves 72 are provided through the two opposite inner walls of the transverse groove 71; an L-shaped block 73 is slidably connected in the movable groove 72; the L-shaped block 73 is connected to the outer wall of the square rod 7 by an elastic rope 74; a guide surface 75 is provided on one end of the L-shaped block 73 close to the transverse groove 71 and inclined toward the transverse bar 8; a clamping groove 81 is provided through the transverse bar 8; the clamping groove 81 is aligned with the movable groove 72 after the transverse bar 8 enters the transverse groove 71; the end of the L-shaped block 73 can be clamped into the clamping groove 81.

[0045] During operation, the main motor 35 will drive the square rod 7 to rotate during rotation, and the end of the square rod 7 close to the main motor 35 drives the circular plate 34 to rotate through the square hole 341, and the end of the square rod 7 away from the main motor 35 drives the horizontal bar 8 in the horizontal groove 71 to rotate, and the horizontal bar 8 will drive the annular plate 33 to rotate during rotation, and the annular plate 33 and the circular plate 34 will drive the inner cylinder 5 to rotate during synchronous rotation. The inner cylinder 5 is more stable when driven by both ends of the square rod 7. In addition, during the rotation of the inner cylinder 5, the end of the L-shaped block 73 is stuck in the slot 81, so that the horizontal bar 8 is locked in the horizontal slot 71, so that the horizontal bar 8 cannot be separated from the square rod 7, and the inner cylinder 5 cannot be moved out from the inner side of the outer cylinder 3, further improving the stability of the inner cylinder 5 in the inner side of the outer cylinder 3. After the casting is completed with the sand falling process, the casting needs to be taken out from the inner side of the outer cylinder 3, so the two L-shaped blocks 73 are moved away from each other, and the L-shaped blocks 73 are moved away from each other. The locking chute 77 is pressed against the locking chute 74 so that the locking chute 72 is locked and the locking chute 73 is locked in the locking chute 71. Embodiment 5:

[0046] The toggle plate 6 is tiltedly arranged between the outer wall of the inner tube 5 and the inner wall of the outer tube 3; when the toggle plate 6 moves from bottom to top, the vertical height of the toggle plate 6 decreases as it moves away from the circular plate 34; when the toggle plate 6 moves from top to bottom, the vertical height of the toggle plate 6 decreases as it moves closer to the circular plate 34.

[0047] In this embodiment, the cross section of the toggle plate 6 is corrugated; the casting can move on the inclined toggle plate 6 .

[0048] During operation, after the casting and the molding sand enter the outer wall of the inner tube 5 and the inner wall of the outer tube 3, as the main motor 35 rotates, the main motor 35 will drive the circular plate 34 and the inner tube 5 to rotate. During the rotation of the inner tube 5, multiple toggle plates 6 on the outer wall will be driven to move. The moving stages of the toggle plates 6 are composed of a combination of top-down and bottom-up. During the top-down process of the toggle plates 6, the casting contacts the toggle plates 6 and rolls toward the circular plate 34 under the dual effects of vibration force and gravity under the action of the inclined toggle plates 6. The casting will change its placement state during rolling, so that the casting can be vibrated and sanded in more placement states. In addition, by setting the cross-section of the toggle plates 6 to a corrugated shape, the corrugated surface on the toggle plates 6 increases the friction with the casting. The casting can smoothly roll toward the circular plate 34 instead of moving, and the sand particles falling off the casting are difficult to gather toward the circular plate 34 due to the friction of the corrugated surface of the toggle plate 6, so that the sand particles falling off the casting can be dispersed and flow out between the inner cylinder 5 and the outer cylinder 3, thereby improving the sand particle outflow efficiency; after the toggle plate 6 moves to the lowest point, it starts to move from bottom to top, and the casting will move along the inclined toggle plate 6 away from the circular plate 34, and the placement direction of the casting is changed again, and this is repeated; in this embodiment, the casting can move circumferentially around the inner cylinder 5 while also being able to roll axially on the inner cylinder 5, thereby further changing the placement state of the casting, allowing the casting to vibrate and shed sand in more directions, so that the sand particles on the casting can fall off more thoroughly.

[0049] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A metal casting sand removal treatment device, comprising a base (1) and a bottom plate (2) above the base (1); the upper surface of the base (1) and the bottom plate (2) are connected via a spring (11); characterized in that: The upper surface of the bottom plate (2) is fixedly connected to an outer cylinder (3) with an outer hole (31) through a support plate (21); the outer cylinder (3) is fixedly connected to and communicated with a feed box (4) with an opening facing upward at an upper position; the outer wall of the outer cylinder (3) is symmetrically fixedly connected to a vibration motor (32); the inner wall of one end of the outer cylinder (3) is rotatably sealedly connected to an annular plate (33), and the inner wall of the other end is rotatably sealedly connected to a circular plate (34); an inner cylinder (5) with an inner hole (51) is fixedly connected between the annular plate (33) and the circular plate (34); the inner diameter of the inner cylinder (5) is adapted to the inner diameter of the annular plate (33); the outer wall of the inner cylinder (5) is fixedly connected to a toggle plate (6); the toggle plate (6) is arranged in contact with the inner wall of the outer cylinder (3); the side of the circular plate (34) away from the inner cylinder (5) is connected to a main motor (35); the main motor (35) is fixedly connected to the bottom plate (2) through a support arm (36); The lower part of the inner wall of the feed box (4) is fixedly connected to an interception plate (41); the interception plate (41) is composed of crisscrossed plate members (411); a first sand-falling area (42) is formed inside the feed box (4) under the action of the interception plate (41); a second sand-falling area (52) is formed between the outer wall of the inner tube (5) and the inner wall of the outer tube (3); the casting can enter the second sand-falling area (52) after preliminary sand-falling in the first sand-falling area (42); The inner wall of the inner cylinder (5) is movably connected to the arc plate (53) at the lower position; the outer wall of the arc plate (53) is arranged in contact with the inner wall of the lower half of the inner cylinder (5); the arc plate (53) can collect sand particles falling from above; The thickness of the arc-shaped plate (53) becomes thinner as it moves away from the circular plate (34); the sand particles on the arc-shaped plate (53) flow out along one end of the inner cylinder (5) away from the circular plate (34).

2. The metal casting sand removal processing equipment according to claim 1, characterized in that: A square hole (341) is provided through the center of the circular plate (34); a square rod (7) is slidably connected in the square hole (341); the square rod (7) is located at the central axis of the inner cylinder (5); the length of the square rod (7) is adapted to the axial length of the outer cylinder (3); one end of the square rod (7) is fixedly connected to the output shaft of the main motor (35).

3. The metal casting sand removal processing equipment according to claim 2, characterized in that: The inner wall of the annular plate (33) is fixedly connected to the transverse bar (8) along the radial direction; a transverse groove (71) is provided at one end of the square rod (7) away from the main motor (35); the transverse groove (71) penetrates the lateral outer wall of the square rod (7); and the transverse bar (8) can enter the transverse groove (71).

4. The metal casting sand removal processing equipment according to claim 3 is characterized in that: The two opposite inner walls of the transverse groove (71) are provided with movable grooves (72); an L-shaped block (73) is slidably connected in the movable groove (72); the L-shaped block (73) is connected to the outer wall of the square rod (7) via an elastic rope (74); a guide surface (75) is provided at one end of the L-shaped block (73) close to the transverse groove (71) and inclined toward the transverse bar (8); a clamping groove (81) is provided through the transverse bar (8); the clamping groove (81) is aligned with the movable groove (72) after the transverse bar (8) enters the transverse groove (71); and the end of the L-shaped block (73) can be clamped into the clamping groove (81).

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