A shakeout device for casting automobile parts and a sand cleaning method thereof

Abstract

This invention relates to the field of automotive parts casting technology, and proposes a sand removal device and its sand removal method for automotive parts casting. The device includes a device body, a sand removal box, a grid, a mounting base, a sliding base, a mating push rod, a fixed base, an adjusting base, a lever, a mating block, and a first return spring. The device body includes two side mounting bases, each with a support base on its opposite side. The support bases support the sand removal box, and a sand removal opening is formed between the two support bases. The sand removal box stores sand-laden castings, and a first assembly opening is provided at the bottom of the sand removal box. By setting levers at two opposite corners of the casting, and applying opposing forces simultaneously with the two levers, the casting can rotate around its center. After the two levers move to the other end, the casting's rotation and repositioning are completed, facilitating the sand-removing structure to cover and press the circumference of the casting, making it convenient to use.

Description

Technical Field

[0001] This invention relates to the field of automotive parts casting technology, and in particular to a sand removal device and a sand removal method for automotive parts casting. Background Technology

[0002] In automotive parts casting, the shakeout process refers to the separation of the cast parts from the molding sand and core sand after pouring and forming. It is a crucial link in the casting production process. In automotive parts casting, after pouring and cooling, the castings are encased in molding sand and core sand. The shakeout process is necessary to separate the castings from the sand before they can proceed to subsequent cleaning, heat treatment, and machining processes.

[0003] Residual molding sand on the surface and inside the casting can cause serious quality problems. From a recycling perspective, the old sand separated by the shakeout can be recycled and reused after processing. Existing shakeout devices for automotive parts casting mostly use mechanical vibration shakeout, shot peening shakeout, and impact shakeout to clean sand-laden castings.

[0004] Conventionally, sand-bearing castings are stored in a sand-falling box. A grid at the bottom of the box allows molding sand to fall off the casting surface and be screened through the grid for sand removal. During impact sand removal, a cylinder drives a sand-dispersing plate to impact and disperse the molding sand on the casting surface. However, during impact sand removal, the sand-dispersing plates distributed on both sides of the casting cannot evenly impact its circumference. The casting must be manually turned repeatedly to ensure uniform impact, which is time-consuming and labor-intensive. Therefore, this solution proposes a sand removal device for automotive parts casting to address these problems. Summary of the Invention

[0005] In view of this, the present invention proposes a sand removal device for automotive parts casting, which solves the technical problem that existing sand removal devices for automotive parts casting cannot uniformly impact the periphery of the sand-bearing casting when performing impact sand removal. The sand-bearing casting needs to be manually turned over repeatedly to ensure that the sand-bearing casting is impacted and sanded evenly. The manual turning of the sand-bearing casting consumes too much time and manpower.

[0006] The technical solution of this invention is implemented as follows: This invention provides a sand removal device for casting automotive parts, comprising a device body, a sand removal box, a grid, a mounting base, a sliding base, a mating push rod, a fixed base, an adjusting base, a lever, a mating block, and a first return spring, wherein, The device body includes two side mounting seats, and a support seat is provided on one side of each of the two side mounting seats. The support seat is used to support the sand drop box, and a sand drop port is formed between the two support seats. The sand drop box is used to store castings with sand. The bottom of the sand drop box has a first assembly opening. The grid is set inside the first assembly opening for screening castings and molding sand. Two mounting bases are respectively disposed on the two side mounting bases and located above the sand drop box, and the sliding base is slidably disposed on the mounting base; A fixed seat is disposed above the sliding seat, and an adjusting seat is slidably disposed on one side of the fixed seat. The adjusting seat slides toward or away from the sand-containing casting, and the sliding direction of the adjusting seat is perpendicular to the sliding direction of the sliding seat. A lever is provided on the adjusting seat. When the sliding seat slides, the two levers press against two opposite corners of the sand-coated casting and cause the sand-coated casting to rotate. The lever has interconnected mating holes between its opposite sides, and the mating block is disposed inside the mating hole, with the side wall of the mating block being an inclined wall. A mating push rod is provided on the mounting base. When the sliding seat slides from one end of the mounting base to the other end, the mating push rod passes through the mating hole and abuts against the inclined side wall of the mating block. A through hole is formed between the mating block and the hole wall of the mating hole for the mating push rod to pass through. A first return spring is disposed between the adjusting seat and the fixed seat, and is used to reset the sliding position of the adjusting seat.

[0007] Based on the above technical solutions, preferably, an amplifying spring is fixedly connected between the sand drop box and the side mounting base, and a vibration motor is provided on the sand drop box.

[0008] Based on the above technical solutions, a preferred embodiment also includes a telescopic rod, wherein... A telescopic rod is mounted on the fixed base, and the telescopic end of the telescopic rod is fixedly connected to the adjusting base. The first return spring is sleeved on the telescopic rod and is fixedly connected to the fixed base and the adjusting base.

[0009] Based on the above technical solutions, preferably, it also includes a first locking block and a first connecting spring, wherein... The sliding seat has a first assembly groove, the first locking block is slidably disposed inside the first assembly groove, the bottom of the adjusting seat has a locking groove for the first locking block to be inserted, the side of the first locking block near the adjusting seat is a slope, and the side of the first locking block away from the adjusting seat is a flat surface. A first connecting spring is disposed between the first locking block and the first assembly groove, and is used to reset the sliding position of the first locking block.

[0010] Based on the above technical solutions, the preferred embodiment also includes a fixed rail, a sliding rail, a second return spring, and a mating top frame, wherein... A side seat is provided on one side of the sliding seat. The side seat is an L-shaped seat. The fixed rail is fixedly mounted on the side seat. The sliding rail is slidably mounted on the side seat. The sliding direction of the sliding rail is adapted to the sliding direction of the adjusting seat. The fixed seat is slidably mounted on the fixed rail, and the adjusting seat is slidably mounted on the sliding rail, which is adapted to the sliding direction of the sliding seat. The slot is connected to one side of the adjusting seat. A second return spring is disposed between the fixed seat and the side seat, and is used to reset the sliding position of the fixed seat; The mating top bracket is mounted on the mounting base and located at the end of the mounting base away from the mating top rod. When the sliding base slides to the end away from the mating top rod, the mating top bracket presses against the lever and causes the first locking block to slide out of the locking groove.

[0011] Based on the above technical solutions, the preferred embodiment also includes a telescopic cylinder, a sand-dividing plate, a top rail, and a shot peening device, wherein... A telescopic cylinder is provided on the main body of the device, and the telescopic end of the telescopic cylinder extends or retracts in the direction of approaching or moving away from the sand-containing casting. A sand-dispersing plate is installed on the telescopic end of the telescopic cylinder and is used to impact and disperse the molding sand on the surface of the sand-laden casting. A top rail is positioned above the main body of the device, and the shot peening device is slidably mounted on the top rail. The discharge end of the shot peening device is connected to a discharge pipe, which is a flexible hose used to spray cast steel shot.

[0012] Based on the above technical solutions, the preferred embodiment also includes a hanging ring and a collar, wherein, The end of the discharge pipe is connected to a discharge head, and the diameter of the discharge head is larger than the diameter of the discharge pipe. A hanging ring is provided on the side wall of the shot peening machine for attaching the connection between the discharge pipe and the discharge head. A collar is slidably inserted into the inner side of the hanging ring, and a second assembly groove is provided on the side wall of the shot peening device for the collar to be inserted.

[0013] Based on the above technical solutions, preferably, it also includes a second locking block and a second connecting spring, wherein... A third assembly groove is provided on the inner side of the second assembly groove, and the second locking block is slidably disposed on the inner side of the third assembly groove. A positioning groove for the second locking block to be inserted is provided on the collar, and the second locking block is an arc-shaped locking block. A second connecting spring is disposed between the second locking block and the third assembly groove, and is used to reset the sliding position of the second locking block.

[0014] Based on the above technical solutions, a preferred embodiment also includes a side connecting plate, wherein... The sand box has a second assembly opening on one side. The side connecting plate is rotatably disposed at the second assembly opening and is used to rotate to cover the second assembly opening or to rotate to connect with the external sand-carrying casting conveyor belt. The side connecting plate is used to convey the sand-carrying casting. The side connecting plate is provided with two limiting baffles, both of which are used to limit the movement of the sand casting. A material guiding block is provided between the two limiting baffles. One side of the material guiding block is inclined, and the side of the material guiding block away from the side connecting plate is flat.

[0015] This invention also proposes a sand removal method for a sand removal device used in automotive parts casting, which is completed using the aforementioned sand removal device for automotive parts casting, and includes the following steps: S1. Place the sand-bearing casting inside the sand drop box and install a sand collection component below the sand drop opening; S2. The sand-containing castings stored inside the sand-falling box are subjected to sand-falling treatment through the sand-falling structure; S3. When it is necessary to turn the sand-containing casting, adjust the two sliding seats to move in opposite directions to complete the turning and positioning of the sand-containing casting. S4. After the sand-coated casting has completed its turn, continue to adjust the movement of the two sliding seats, and when the adjusting seat slides as far as it can towards the fixed seat, position the adjusting seat relative to the fixed seat. S5. Remove the collecting component from the sand drop outlet and remove the collected molding sand from the collecting component to complete the sand removal process for the sand-bearing casting.

[0016] The sand removal device and sand cleaning method for casting automotive parts of the present invention have the following advantages over the prior art: (1) The sand removal device for casting automotive parts of this application stores the castings by setting a sand removal box and setting a grid for screening at the bottom of the sand removal box to facilitate the collection and cleaning of molding sand at the sand removal port. By setting a lever at two opposite corners of the casting, the casting can rotate around the center by applying opposing forces simultaneously with the two levers. After the two levers move to the other end, the casting can be rotated and repositioned. This facilitates the sand-filling structure to cover and press the circumference of the casting. Since the casting itself has volume obstruction, the adjustment seat can slide relative to the fixed seat by setting an adjustment seat. When the lever moves the casting to rotate, the lever can also slide relative to the casting to avoid the casting from getting stuck during rotation. By continuously applying force through the first reset spring, the lever can still apply force to the casting when sliding to avoid the casting, increasing the stability of the casting rotation and repositioning. By setting a mating push rod to abut against a mating block at the end of the mounting base, the position of the lever is adjusted. After the sliding seat slides to the other end, the lever can avoid the casting under the action of the mating push rod in the sliding direction of the sliding seat. By positioning the lever, it is convenient to prevent the lever from accidentally touching the casting and causing the casting to rotate unexpectedly when the sliding seat is adjusted to the reset position. By setting the lever to be released after the sliding seat is slid to the reset position, it is convenient to continuously rotate and adjust the casting in one direction. This facilitates the sand-blasting structure to punch and remove sand from the circumference of the casting. Therefore, the sand-blasting device for casting of automotive parts of this application is convenient for turning and adjusting the casting during sand-blasting, making it easy to use.

[0017] (2) By setting the first locking block, after the mating rod abuts against the mating block, the movable adjusting seat can abut against the first locking block, and under the action of the inclined side wall of the first locking block, the first locking block moves downward until it moves to the position opposite to the slot. Under the action of the first connecting spring, it can be inserted and locked into the inner side of the slot. Since the other side of the first locking block is a plane, under the action of the plane side wall of the first locking block, the positioning of the sliding position of the adjusting seat can be completed, preventing the lever from accidentally contacting the casting when the adjusting sliding seat slides to the reset position. By setting a fixed seat and an adjusting seat to slide on the fixed rail and sliding rail respectively, when the adjusting sliding seat slides to the reset position, it engages with the top frame and the lever, causing the adjusting seat and the fixed seat to slide simultaneously on the fixed rail and the sliding rail. Since the slot is connected to one side of the adjusting seat, the first locking block can be moved to disengage from the slot. After the first locking block disengages from the slot, the adjusting seat, under the action of the first reset spring, drives the sliding rail to the reset position, thus facilitating the adjustment of the casting again by using the lever, making it convenient to use.

[0018] (3) By setting the discharge pipe of the shot peening device to be a flexible hose, it is convenient to adjust the position of the discharge head for shot peening and sand removal of the castings. At the same time, it is convenient to extend the discharge head into the cavity of the casting for shot peening and sand removal of the molding sand inside the cavity. However, since the discharge pipe is a flexible hose, in order to prevent the discharge pipe from affecting the sand removal of the castings by other sand removal structures of the device, a hanging ring is set for hanging the discharge pipe. This makes it convenient to hang and position the end of the discharge pipe. By setting the diameter of the discharge head to be larger than the diameter of the discharge pipe, the discharge pipe can be hung on the hanging ring. By setting a collar to be inserted inside the hanging ring, after the discharge pipe is hung, the collar can be adjusted to slide into the second assembly groove. The collar and the hanging ring can form a closed-loop hanging structure, which makes it convenient and stable to limit the hanging position of the discharge pipe and improve the stability of the hanging of the discharge pipe. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a front perspective view of the sand removal device for casting automotive parts according to the present invention; Figure 2 This is a rear perspective view of the sand removal device for casting automotive parts according to the present invention. Figure 3 This is a front view of the sand removal device for casting automotive parts according to the present invention; Figure 4 This is a three-dimensional schematic diagram of the structure of the sand removal box of the sand removal device for casting automotive parts according to the present invention. Figure 5 The present invention relates to a sand removal device for casting automotive parts. Figure 4 A bottom-view perspective of the structure shown. Figure 6 This is a three-dimensional schematic diagram of the mounting base structure of the sand removal device for casting automotive parts according to the present invention. Figure 7 This is a three-dimensional schematic diagram of the structure of the sliding joint of the sand removal device for casting automotive parts according to the present invention. Figure 8 This is a cross-sectional schematic diagram showing the connection between the first locking block and the sliding seat of the sand removal device for casting automotive parts according to the present invention. Figure 9 The present invention relates to a sand removal device for casting automotive parts. Figure 7 Rear-view perspective view of the structure shown; Figure 10This is a three-dimensional schematic diagram of the top rail structure of the sand removal device for casting automotive parts according to the present invention. Figure 11 This is a cross-sectional schematic diagram showing the connection between the shot peening device and the hanging ring in the sand removal device for casting automotive parts according to the present invention.

[0021] In the diagram: 1. Device body; 11. Side mounting base; 12. Support base; 121. Sand drop port; 21. Sand drop box; 211. First assembly opening; 212. Second assembly opening; 22. Grid mesh; 23. Amplifying spring; 24. Vibration motor; 31. Mounting base; 32. Sliding joint base; 321. First assembly slot; 322. Side seat; 33. Matching top rod; 34. Matching top frame; 41. Fixed base; 42. Adjusting base; 421. Slot; 43. Toggle rod; 431. Matching hole; 432. Through hole; 44. Matching block; 45. Telescopic rod; 46. First return spring; 4 7. Fixed rail; 48. Sliding rail; 49. Second return spring; 51. First locking block; 52. First connecting spring; 61. Telescopic cylinder; 62. Sand separating plate; 63. Top rail; 64. Shot peening device; 641. Second assembly slot; 642. Third assembly slot; 65. Discharge pipe; 66. Discharge head; 71. Hanging ring; 711. Sliding hole; 72. Collar; 721. Positioning slot; 73. Connecting rod; 74. Second locking block; 75. Second connecting spring; 81. Side connecting plate; 82. Limiting baffle; 83. Material guide block; 84. Limiting bracket; 10. External sand-bearing casting conveyor belt. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figures 1-11As shown, the sand removal device for casting automotive parts of the present invention includes a device body 1, a sand removal box 21, a grid 22, a mounting base 31, a sliding joint 32, a mating push rod 33, a fixed base 41, an adjusting base 42, a lever 43, a mating block 44, and a first return spring 46. The device body 1 includes two side mounting bases 11, each with a support base 12 on its opposite side. The support base 12 supports the sand removal box 21, and a sand removal opening 121 is formed between the two support bases 12. The sand removal box 21 stores castings with sand. A first assembly opening 211 is opened at the bottom of the sand removal box 21, and the grid 22 is disposed inside the first assembly opening 211 for screening castings and molding sand. Two mounting bases 31 are respectively disposed on the two side mounting bases 11 and located above the sand removal box 21. The sliding joint 32 is slidably disposed on the mounting base 31. The fixed base 41 is disposed above the sliding joint 32, and the adjusting base 42 is slidably disposed on the fixed base 41. On one side of the fixed seat 41, the adjusting seat 42 slides towards or away from the sand-laden casting, and the sliding direction of the adjusting seat 42 is perpendicular to the sliding direction of the sliding joint 32; the lever 43 is disposed on the adjusting seat 42, and when the sliding joint 32 slides, the two levers 43 respectively press against two opposite corners of the sand-laden casting, causing the sand-laden casting to rotate; the two opposite sides of the lever 43 are provided with interconnected mating holes 431, and the mating block 44 is disposed inside the mating hole 431, and is fitted with... The side wall of the mating block 44 is an inclined wall; the mating push rod 33 is set on the mounting base 31. When the sliding seat 32 slides from one end of the mounting base 31 to the other end, the mating push rod 33 passes through the mating hole 431 and abuts against the inclined side wall of the mating block 44. A through hole 432 is formed between the mating block 44 and the hole wall of the mating hole 431 for the mating push rod 33 to pass through; the first return spring 46 is set between the adjusting seat 42 and the fixed seat 41 and is used to reset the sliding position of the adjusting seat 42.

[0024] In practice, the sand-laden casting is placed inside the sand-falling box 21, and a sand collection component is installed below the sand-falling port 121. The sand-laden casting stored inside the sand-falling box 21 is subjected to sand-falling treatment through the sand-falling structure. At this time, the separated molding sand falls through the grid 22 and is stored inside the collection component below the sand-falling port 121. When it is necessary to turn the sand-laden casting, the two sliding seats 32 are adjusted to move towards each other. At this time, the sliding seats 32 drive the levers 43 to move through the adjusting seat 42. The two levers 43 push the two opposite corners of the sand-laden casting respectively, and the adjusting seat 42 slides relative to the fixed seat 41 to complete the turning and repositioning of the sand-laden casting. After the sand-bearing casting has completed its rotation, continue to adjust the movement of the two sliding seats 32. At this time, the sliding seats 32 slide towards the end, and the push rod 33 extends into the interior of the mating hole 431 and presses against the inclined side wall of the mating block 44, so that the adjusting seat 42 slides as far as possible towards the fixed seat 41. At this time, the adjusting seat 42 can completely avoid the sand-bearing casting, and the position of the adjusting seat 42 relative to the fixed seat 41 is positioned. This makes it convenient to avoid the lever 43 from contacting the sand-bearing casting when adjusting the sliding seat 32 to the reset position, so as to prevent the sand-bearing casting from accidentally rotating. Remove the collecting component from the sand drop port 121 and remove the collected molding sand from the collecting component to complete the sand cleaning treatment of the sand-bearing casting.

[0025] The sand removal device for casting automotive parts of this application stores castings by setting a sand removal box 21 and setting a grid 22 for screening at the bottom of the sand removal box 21 to facilitate the collection and cleaning of molding sand at the sand removal port 121.

[0026] By setting levers 43 at two opposite corners of the casting, the casting can rotate around the center by applying opposing forces simultaneously with the two levers 43. After the two levers 43 move to the other end, the casting can be rotated and repositioned, which facilitates the sand-blasting structure to cover and stamp the periphery of the casting. Since the casting itself has volume obstruction, the adjustment seat 42 can slide relative to the fixed seat 41, so that when the levers 43 rotate the casting, they can also slide relative to the casting to avoid the casting from getting stuck during rotation. The first return spring 46 continuously applies force, so that the levers 43 can still apply force to the casting when sliding to avoid the casting, increasing the stability of the casting rotation and repositioning. By setting the mating push rod 33 to abut against the mating block 44 at the end of the mounting base 31, the position of the lever 43 is adjusted. After the sliding seat 32 slides to the other end, under the action of the mating push rod 33, the lever 43 can avoid the casting in the sliding direction of the sliding seat 32. By positioning the lever 43, it is convenient to prevent the lever 43 from accidentally touching the casting when the sliding seat 32 slides to the reset position, which would cause the casting to rotate unexpectedly. By setting the lever 43 to be released after the sliding seat 32 slides to the reset position, it is convenient for the lever 43 to continuously rotate and adjust the casting in one direction. This facilitates the sand-punching structure to punch and remove sand from the circumference of the casting. Thus, the sand-punching device for casting of automotive parts of this application is convenient for turning and adjusting the casting during sand-punching, making it easy to use.

[0027] In a preferred embodiment, an amplifying spring 23 is fixedly connected between the sand drop box 21 and the side mounting base 11, and a vibration motor 24 is provided on the sand drop box 21.

[0028] In practice, the sand-falling box 21 can be vibrated on the support base 12 by adjusting the vibration motor 24 to perform vibration sand-falling treatment.

[0029] In a preferred embodiment, the device also includes a telescopic rod 45, wherein the telescopic rod 45 is mounted on the fixed seat 41 and the telescopic end of the telescopic rod 45 is fixedly connected to the adjusting seat 42. The first reset spring 46 is sleeved on the telescopic rod 45 and is fixedly connected to the fixed seat 41 and the adjusting seat 42.

[0030] This design allows the adjusting seat 42 to slide relative to the fixed seat 41 via the telescopic rod 45, while the first return spring 46 is sleeved on the telescopic rod 45 to increase the telescopic stability of the first return spring 46.

[0031] In a preferred embodiment, the device further includes a first locking block 51 and a first connecting spring 52. The sliding seat 32 has a first mounting groove 321. The first locking block 51 is slidably disposed inside the first mounting groove 321. The bottom of the adjusting seat 42 has a locking groove 421 for the first locking block 51 to be inserted into. The side of the first locking block 51 near the adjusting seat 42 is inclined, and the side of the first locking block 51 away from the adjusting seat 42 is flat. The first connecting spring 52 is disposed between the first locking block 51 and the first mounting groove 321 and is used to reset the sliding position of the first locking block 51.

[0032] By setting the first locking block 51, after the mating rod 33 abuts against the mating block 44, the movable adjusting seat 42 can abut against the first locking block 51. Under the action of the inclined side wall of the first locking block 51, the first locking block 51 moves downward until it is aligned with the slot 421. Under the action of the first connecting spring 52, it can be inserted and locked into the inner side of the slot 421. Since the other side of the first locking block 51 is a plane, under the action of the plane side wall of the first locking block 51, the positioning of the sliding position of the adjusting seat 42 can be completed, preventing the lever 43 from accidentally contacting the casting when the adjusting sliding seat 32 slides to the reset position.

[0033] It also includes a fixed rail 47, a sliding rail 48, a second return spring 49, and a mating top frame 34. A side seat 322, which is L-shaped, is provided on one side of the sliding seat 32. The fixed rail 47 is fixedly mounted on the side seat 322, and the sliding rail 48 is slidably mounted on the side seat 322. The sliding direction of the sliding rail 48 matches the sliding direction of the adjusting seat 42. The fixed seat 41 is slidably mounted on the fixed rail 47, and the adjusting seat 42 is slidably mounted on the sliding rail 48, which is compatible with the sliding... The sliding direction of the connecting seat 32 is adapted to the sliding direction, and the slot 421 is connected to one side of the adjusting seat 42; the second reset spring 49 is disposed between the fixed seat 41 and the side seat 322, and is used to reset the sliding position of the fixed seat 41; the mating top bracket 34 is disposed on the mounting seat 31 and is located at the end of the mounting seat 31 away from the mating top rod 33. When the sliding seat 32 slides to the end away from the mating top rod 33, the mating top bracket 34 presses against the lever 43 and causes the first locking block 51 to slide out of the slot 421.

[0034] By setting the fixed seat 41 and the adjusting seat 42 to slide on the fixed rail 47 and the sliding rail 48 respectively, when the adjusting sliding seat 32 slides to the reset position, it cooperates with the top frame 34 to abut against the lever 43, and the adjusting seat 42 and the fixed seat 41 slide simultaneously on the fixed rail 47 and the sliding rail 48. Since the slot 421 is connected to one side of the adjusting seat 42, the first locking block 51 can be moved to disengage from the slot 421. After the first locking block 51 disengages from the slot 421, the adjusting seat 42 drives the sliding rail 48 to move to the reset position under the action of the first reset spring 46, which facilitates the adjustment of the casting by the lever 43 again, making it convenient to use.

[0035] In a preferred embodiment, the device further includes a telescopic cylinder 61, a sand-distributing plate 62, a top rail 63, and a shot peening device 64. The telescopic cylinder 61 is mounted on the device body 1, and its telescopic end extends towards or away from the sand-bearing casting. The sand-distributing plate 62 is mounted on the telescopic end of the telescopic cylinder 61 and is used to impact and disperse the molding sand on the surface of the sand-bearing casting. The top rail 63 is mounted above the device body 1, and the shot peening device 64 is slidably mounted on the top rail 63. The discharge end of the shot peening device 64 is connected to a discharge pipe 65, which is a flexible hose, for spraying cast steel shot.

[0036] In practice, by adjusting the telescopic cylinder 61 to extend and retract, the sand-distributing plate presses against the surface of the casting to impact and remove sand from the casting. The steel shot is then sprayed out through the discharge pipe 65 toward the surface or interior of the casting to complete the shot peening and sand removal treatment of the casting.

[0037] By setting the discharge pipe 65 of the shot peening device 64 to a flexible hose, it is convenient to adjust the position of the discharge head 66 for shot peening and sand removal of the casting, and at the same time, it is convenient to extend the discharge head 66 into the cavity of the casting for shot peening and sand removal of the cavity molding sand.

[0038] It also includes a hanging ring 71 and a collar 72. The end of the discharge pipe 65 is connected to a discharge head 66, and the diameter of the discharge head 66 is larger than the diameter of the discharge pipe 65. The hanging ring 71 is set on the side wall of the shot peening machine 64 and is used to hang the connection between the discharge pipe 65 and the discharge head 66. The collar 72 is slidably inserted into the inner side of the hanging ring 71, and a second assembly groove 641 for the collar 72 to be inserted is opened on the side wall of the shot peening machine 64.

[0039] In practice, a connecting rod 73 is provided on the outer side of the collar 72, and a sliding hole 711 is provided on the hanging ring 71 for the connecting rod 73 to pass through. This design facilitates the movement of the adjusting collar 72.

[0040] Since the discharge pipe 65 is a flexible hose, in order to prevent the discharge pipe 65 from interfering with the sand removal process of other sand removal structures in the device, a hanging ring 71 is provided for hanging the discharge pipe 65. This allows for convenient hanging and positioning of the end of the discharge pipe 65. By setting the diameter of the discharge head 66 to be larger than the diameter of the discharge pipe 65, the discharge pipe 65 can be hung on the hanging ring 71. A collar 72 is slidably inserted inside the hanging ring 71. After the discharge pipe 65 is hung, the collar 72 can be adjusted to slide into the second assembly groove 641. The collar 72 and the hanging ring 71 can form a closed-loop hanging structure, thereby conveniently and stably limiting the hanging position of the discharge pipe 65 and improving the stability of the hanging of the discharge pipe 65.

[0041] It also includes a second locking block 74 and a second connecting spring 75. The inner side of the second assembly groove 641 is provided with a third assembly groove 642. The second locking block 74 is slidably disposed on the inner side of the third assembly groove 642. The collar 72 is provided with a positioning groove 721 for the second locking block 74 to be inserted. The second locking block 74 is an arc-shaped locking block. The second connecting spring 75 is disposed between the second locking block 74 and the third assembly groove 642 and is used to reset the sliding position of the second locking block 74.

[0042] Specifically, after the adjusting collar 72 moves to the inside of the second assembly slot 641, the second locking block 74 is inserted into the inside of the positioning slot 721 under the action of the second connecting spring 75, thus completing the positioning process of the collar 72 insertion position for easy use.

[0043] In a preferred embodiment, a side connecting plate 81 is also included. A second assembly opening 212 is provided on one side of the sand drop box 21. The side connecting plate 81 is rotatably disposed at the second assembly opening 212 and is used to rotate to cover the second assembly opening 212 or to rotate to connect with the external sand-carrying casting conveyor belt 10. The side connecting plate 81 is used to convey sand-carrying castings. Two limiting baffles 82 are provided on the side connecting plate 81. Both limiting baffles 82 are used to limit the movement position of the sand-carrying castings. A material guiding block 83 is provided between the two limiting baffles 82. One side of the material guiding block 83 is inclined, and the side of the material guiding block 83 away from the side connecting plate 81 is flat.

[0044] Preferably, a limiting bracket 84 is provided on the outside of the sand drop box 21, which is used to support the rotation position of the positioning side connecting plate 81.

[0045] In practice, the sand-laden castings falling from the external sand-laden casting conveyor belt 10 are guided by the side connecting plate 81 into the sand drop box 21. Two limiting baffles 82 are set to shield the sand-laden castings from both sides to improve their stability during descent. By setting one side of the material guide block 83 as an inclined surface and the other side of the material guide block 83 away from the side connecting plate 81 as a flat surface, when the side connecting plate 81 is rotated to cover the second assembly opening 212, the flat surface of the material guide block 83 can still abut against the sand-laden casting, allowing the sand-laden casting to move into the sand drop box 21. This also facilitates the positioning of the sand-laden castings and makes them convenient to use.

[0046] This application also proposes a sand removal method for a sand removal device used in automotive parts casting, which is completed by the aforementioned sand removal device for automotive parts casting, including the following steps: Step 1: Place the sand-bearing casting inside the sand drop box 21, and set a sand collection component below the sand drop port 121; Step 2: The sand-containing castings stored inside the sand-falling box 21 are subjected to sand-falling treatment through the sand-falling structure. At this time, the separated molding sand falls through the grid 22 and is stored inside the collection component below the sand-falling port 121. Step 3: When it is necessary to turn the sand-containing casting, adjust the two sliding seats 32 to move towards each other. At this time, the sliding seats 32 drive the levers 43 to move through the adjusting seat 42. The two levers 43 push the two opposite corners of the sand-containing casting respectively, and the adjusting seat 42 slides relative to the fixed seat 41 to complete the turning and repositioning of the sand-containing casting. Step 4: After the sand-bearing casting has completed its rotation, continue to adjust the movement of the two sliding seats 32. At this time, the sliding seats 32 slide towards the end, and the push rod 33 extends into the interior of the mating hole 431 and presses against the inclined side wall of the mating block 44, so that the adjusting seat 42 slides as far as possible towards the fixed seat 41. At this time, the adjusting seat 42 can completely avoid the sand-bearing casting. Position the adjusting seat 42 relative to the fixed seat 41 to facilitate the adjustment of the sliding seat 32 to the reset position, and avoid the lever 43 from contacting the sand-bearing casting, which could cause the sand-bearing casting to rotate unexpectedly. Step 5: Remove the collecting component from the sand drop outlet 121 and remove the collected molding sand from the collecting component to complete the sand removal process for the sand-bearing casting.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sand-falling device for casting automotive parts, characterized in that: The device includes a main body, a sand-falling box, a grid, a mounting base, a sliding joint, a mating push rod, a fixed base, an adjusting base, a lever, a mating block, and a first return spring. The device body includes two side mounting seats, and a support seat is provided on one side of each of the two side mounting seats. The support seat is used to support the sand drop box, and a sand drop port is formed between the two support seats. The sand drop box is used to store castings with sand. The bottom of the sand drop box has a first assembly opening. The grid is set inside the first assembly opening for screening castings and molding sand. Two mounting bases are respectively disposed on the two side mounting bases and located above the sand drop box, and the sliding base is slidably disposed on the mounting base; A fixed seat is disposed above the sliding seat, and an adjusting seat is slidably disposed on one side of the fixed seat. The adjusting seat slides toward or away from the sand-containing casting, and the sliding direction of the adjusting seat is perpendicular to the sliding direction of the sliding seat. A lever is provided on the adjusting seat. When the sliding seat slides, the two levers press against two opposite corners of the sand-coated casting and cause the sand-coated casting to rotate. The lever has interconnected mating holes between its opposite sides, and the mating block is disposed inside the mating hole, with the side wall of the mating block being an inclined wall. A mating push rod is provided on the mounting base. When the sliding seat slides from one end of the mounting base to the other end, the mating push rod passes through the mating hole and abuts against the inclined side wall of the mating block. A through hole is formed between the mating block and the hole wall of the mating hole for the mating push rod to pass through. A first return spring is disposed between the adjusting seat and the fixed seat, and is used to reset the sliding position of the adjusting seat.

2. The sand removal device for casting automotive parts as described in claim 1, characterized in that: An amplifying spring is fixedly connected between the sand drop box and the side mounting base, and a vibration motor is installed on the sand drop box.

3. The sand removal device for casting automotive parts as described in claim 1, characterized in that: It also includes telescopic poles, among which, A telescopic rod is mounted on the fixed base, and the telescopic end of the telescopic rod is fixedly connected to the adjusting base. The first return spring is sleeved on the telescopic rod and is fixedly connected to the fixed base and the adjusting base.

4. The sand removal device for casting automotive parts as described in claim 1, characterized in that: It also includes a first locking block and a first connecting spring, wherein, The sliding seat has a first assembly groove, the first locking block is slidably disposed inside the first assembly groove, the bottom of the adjusting seat has a locking groove for the first locking block to be inserted, the side of the first locking block near the adjusting seat is a slope, and the side of the first locking block away from the adjusting seat is a flat surface. A first connecting spring is disposed between the first locking block and the first assembly groove, and is used to reset the sliding position of the first locking block.

5. The sand removal device for casting automotive parts as described in claim 4, characterized in that: It also includes a fixed rail, a sliding rail, a second return spring, and a mating top frame, among which, A side seat is provided on one side of the sliding seat. The side seat is an L-shaped seat. The fixed rail is fixedly mounted on the side seat. The sliding rail is slidably mounted on the side seat. The sliding direction of the sliding rail is adapted to the sliding direction of the adjusting seat. The fixed seat is slidably mounted on the fixed rail, and the adjusting seat is slidably mounted on the sliding rail, which is adapted to the sliding direction of the sliding seat. The slot is connected to one side of the adjusting seat. A second return spring is disposed between the fixed seat and the side seat, and is used to reset the sliding position of the fixed seat; The mating top bracket is mounted on the mounting base and located at the end of the mounting base away from the mating top rod. When the sliding base slides to the end away from the mating top rod, the mating top bracket presses against the lever and causes the first locking block to slide out of the locking groove.

6. The sand removal device for casting automotive parts as described in claim 1, characterized in that: It also includes telescopic cylinder components, sand-dividing plates, top rails, and shot peening equipment, among which, A telescopic cylinder is provided on the main body of the device, and the telescopic end of the telescopic cylinder extends or retracts in the direction of approaching or moving away from the sand-containing casting. A sand-dispersing plate is installed on the telescopic end of the telescopic cylinder and is used to impact and disperse the molding sand on the surface of the sand-laden casting. A top rail is positioned above the main body of the device, and the shot peening device is slidably mounted on the top rail. The discharge end of the shot peening device is connected to a discharge pipe, which is a flexible hose used to spray cast steel shot.

7. The sand removal device for casting automotive parts as described in claim 6, characterized in that: It also includes hanging rings and collars, among which, The end of the discharge pipe is connected to a discharge head, and the diameter of the discharge head is larger than the diameter of the discharge pipe. A hanging ring is provided on the side wall of the shot peening machine for attaching the connection between the discharge pipe and the discharge head. A collar is slidably inserted into the inner side of the hanging ring, and a second assembly groove is provided on the side wall of the shot peening device for the collar to be inserted.

8. The sand removal device for casting automotive parts as described in claim 7, characterized in that: It also includes a second locking block and a second connecting spring, wherein, A third assembly groove is provided on the inner side of the second assembly groove, and the second locking block is slidably disposed on the inner side of the third assembly groove. A positioning groove for the second locking block to be inserted is provided on the collar, and the second locking block is an arc-shaped locking block. A second connecting spring is disposed between the second locking block and the third assembly groove, and is used to reset the sliding position of the second locking block.

9. The sand removal device for casting automotive parts as described in claim 1, characterized in that: It also includes side connecting plates, among which, The sand box has a second assembly opening on one side. The side connecting plate is rotatably disposed at the second assembly opening and is used to rotate to cover the second assembly opening or to rotate to connect with the external sand-carrying casting conveyor belt. The side connecting plate is used to convey the sand-carrying casting. The side connecting plate is provided with two limiting baffles, both of which are used to limit the movement of the sand casting. A material guiding block is provided between the two limiting baffles. One side of the material guiding block is inclined, and the side of the material guiding block away from the side connecting plate is flat.

10. A method for removing sand from a sand-shedding device used in the casting of automotive parts, characterized in that: The process, performed by the sand-removing device for casting automotive parts according to any one of claims 1 to 9, includes the following steps: S1. Place the sand-bearing casting inside the sand drop box and install a sand collection component below the sand drop opening; S2. The sand-containing castings stored inside the sand-falling box are subjected to sand-falling treatment through the sand-falling structure; S3. When it is necessary to turn the sand-containing casting, adjust the two sliding seats to move in opposite directions to complete the turning and positioning of the sand-containing casting. S4. After the sand-coated casting has completed its turn, continue to adjust the movement of the two sliding seats, and when the adjusting seat slides as far as it can towards the fixed seat, position the adjusting seat relative to the fixed seat. S5. Remove the collecting component from the sand drop outlet and remove the collected molding sand from the collecting component to complete the sand removal process for the sand-bearing casting.

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