A lost foam casting equipment with quick mold maintenance

Abstract

The invention provides a mold quick-maintenance lost foam casting device, comprising a casting box, one end of which is provided with a first side baffle, and the other end of which is provided with a second side baffle; a conveying track, one end of which is a making position, and the other end of which is a unloading position, the unloading position is provided with a vibration separation box and a sand cleaning component, and the making position is provided with a receiving component; a sand mold making mechanism, which is placed on one side of the making position, and the sand mold making mechanism comprises a base, the top of the base is rotatably connected to a switching spindle, the top of the switching spindle is provided with a top frame body, four workstations are arranged on the outer side of the top frame body, and three of the four workstations are respectively installed with a sand filling component, a compacting component and an upper film component; a sand mold maintenance mechanism, which comprises a unloading component, a first clamping component and a second clamping component; the invention can quickly complete sand mold making and maintenance, and effectively improve the efficiency of lost foam casting.

Description

Technical Field

[0001] The invention relates to the technical field of lost foam casting, and in particular to a quick-mold maintenance lost foam casting device. Background Art

[0002] Lost foam casting is a common casting process, the core of which is to use a disappearing foam model to form the cavity of the casting. In the traditional lost foam casting process, there are many problems in the production and blanking procedures of the sand mold, which affect the production efficiency and the safety of workers' operation, as follows: 1. In the prior art, the production of sand molds requires manual pressing of bottom sand and middle sand. This process is not only time-consuming and labor-intensive, but also difficult to ensure the uniformity and density of the sand layer, which affects the quality of the casting.

[0003] 2. During the sand mold making process, it is necessary to manually open a through hole in the film so that the casting tube can extend outward; this step not only increases the complexity of the operation, but also easily leads to casting failure due to inaccurate hole opening.

[0004] 3. In the traditional method, the casting box needs to be turned over when unloading the sand mold, and the sand needs to be unloaded by its own weight; however, this method often leads to incomplete unloading, and a large amount of sand is still attached to the inner wall of the casting box, increasing the workload of subsequent cleaning; the temperature inside the casting box after casting is high, and manual cleaning of the sand attached to the box is not only difficult, but also poses a safety hazard, and workers are easily injured by high temperatures. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a mold quick-maintenance lost foam casting device, which solves the problems mentioned in the background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A mold quick maintenance lost foam casting device, comprising a casting box, which is a rectangular parallelepiped structure with an open top, a first side baffle plate at one end of the casting box, and a second side baffle plate at the other end; The conveying track has a production position at one end and a discharge position at the other end. The discharge position is provided with a vibration separation box and a sand cleaning component, and the production position is provided with a receiving component; A sand mold making mechanism is placed on one side of the making position. The sand mold making mechanism includes a base. The top of the base is rotatably connected to the switching spindle. The top of the switching spindle is provided with a top frame. Four stations are provided on the outside of the top frame. Three of the four stations are respectively equipped with a sand filling component, a compaction component and an upper film component. The remaining one of the four stations is an open lost foam placement station. The sand filling component is used to evenly fill the bottom sand and the medium sand into the casting box. The lost foam placement station is used to manually place the lost profile on the bottom sand and install two groups of casting pipes. The upper film component is used to place the film on the medium sand. The compaction component is used to compact the bottom sand and the medium sand and open a through hole on the film to expose the casting pipe. The sand mold maintenance mechanism includes a discharge assembly, a first clamping assembly and a second clamping assembly. The top end of the discharge assembly is connected to the first clamping assembly and the second clamping assembly, and a vibration separation box is provided on one side of the second clamping assembly. The sand mold maintenance mechanism includes the following working states: in the first state, the second clamping assembly draws up the second side baffle, the first clamping assembly pushes the first side baffle, and the first side baffle pushes the sand material to be transferred to the vibration separation box; in the second state, the first clamping assembly and the second clamping assembly drive the casting box to flip downward, and the sand cleaning assembly cleans the residue in the casting box and reduces the temperature of the casting box.

[0007] Furthermore, a U-shaped first receiving opening is provided at one end of the casting box, and a U-shaped second receiving opening is provided at the other end, the inner bottom end of the second receiving opening is flush with the inner bottom surface of the casting box, the inner bottom end of the first receiving opening is higher than the inner bottom surface of the casting box, the cross-sectional area of ​​the first receiving opening is smaller than the cross-sectional area of ​​the second receiving opening, and a card slot is symmetrically provided at the bottom of one end of the casting box; the first side baffle is fitted and stopped on the inner side of the first receiving opening, and a sealing plate is provided on the outer wall of the first side baffle, and the sealing plate is embedded in the first receiving opening, and elastic blocks are symmetrically provided at the bottom end of the first side baffle, and the elastic blocks are engaged and embedded in the card slot, and translation rails are provided on both sides of the top of the casting box, and sliders are symmetrically provided on the top of the first side baffle, and the sliders are slidably embedded in the translation rails; vertical grooves are symmetrically provided inside the second receiving opening, and the second side baffle is vertically slid and inserted into the vertical groove, and a negative pressure joint is provided on the side of the casting box.

[0008] Furthermore, the sand filling assembly includes a first driving rod, the top end of which is connected to the top frame and the bottom end is connected to a cover plate, the cover plate is fitted over the top of the casting box, a sand casting tube is provided inside the cover plate, and a stirring blade is provided in the middle of the bottom of the cover plate.

[0009] Furthermore, the upper film assembly includes a second driving rod, the top end of the second driving rod is connected to the top frame, the bottom end is connected to the first movable guide rail, the bottom end of the first movable guide rail is slidably connected to the storage seat, the storage seat stores a film roll inside, a translation cutter and a first constraint clamp are installed on the output side of the storage seat, and a second constraint clamp is fixedly provided at the other end of the bottom of the first movable guide rail, and the first constraint clamp and the second constraint clamp are used to movably clamp the two ends of the film.

[0010] Furthermore, the compaction assembly includes a third driving rod, the top end of the third driving rod is connected to the top frame body, and the bottom end is connected to the pressure plate, the surface of the pressure plate is provided with an avoidance hole for avoiding the casting pipe, and the outer periphery of each avoidance hole is provided with multiple groups of fixing rods, and the top of the fixing rod is provided with a fixing ring, and the top surface of the fixing ring is rotatably installed with a gear ring, and the side wall of the gear ring is meshed and connected to the driving gear, and the driving gear is arranged on the side of the fixing ring, and the top surface of the gear ring is provided with a horizontal telescopic rod, and the inner end of the horizontal telescopic rod is vertically connected to the fourth driving rod, and the bottom end of the fourth driving rod is connected to the cutting motor, and the bottom end of the cutting motor is connected to the horizontally arranged cutting wheel; when the pressure plate presses down the bottom sand, the cutting wheel blocks the avoidance hole; when the pressure plate presses down the middle sand, the cutting wheel is lifted and placed on one side of the casting pipe, and the cutting wheel makes a circular motion to cut off the part of the casting pipe wrapped by the film.

[0011] Furthermore, the receiving assembly includes a fifth driving rod, a lower plate body is provided at the top end of the fifth driving rod, a vibration plate is installed in the middle of the surface of the lower plate body, a matching block is provided on the top of the vibration plate, and a matching groove which is engaged with the matching block is provided on the bottom surface of the casting box; the vibration plate is used to drive the casting box to shake when the sand filling assembly is filling sand.

[0012] Furthermore, the unloading assembly includes a second movable guide rail, a bottom bracket is slidably installed on the top of the second movable guide rail, a sixth driving rod is provided on the top of the bottom bracket, an opening and closing guide rail is provided on the top side wall of the sixth driving rod, and the bottom of the opening and closing guide rail is connected to the first clamping assembly and the second clamping assembly; the first clamping assembly includes a first hanging arm, the top of the first hanging arm is slidably connected to the opening and closing guide rail, the bottom end of the first hanging arm is rotatably connected to the first magnetic suction plate and a first flipping motor is installed at the rotating connection.

[0013] Furthermore, the second clamping assembly includes a seventh driving rod, which is vertically slidably installed at the bottom of the opening and closing guide rail, the bottom end of the seventh driving rod is vertically connected to the second hanging arm, the outer end of the second hanging arm is connected to the fine-tuning guide rail, the bottom end of the fine-tuning guide rail is slidably installed with a third hanging arm, the inner side of the bottom end of the third hanging arm is rotatably connected to the second magnetic plate and a second flip motor is installed at the rotating connection, telescopic splints are provided on both sides of the second magnetic plate, and clamping sleeves are symmetrically provided on both sides of the casting box, and the telescopic splints are fitted and embedded in the clamping sleeves.

[0014] Furthermore, the sand cleaning component includes a base plate, both ends of the surface of the base plate are open structures and are provided with collection boxes at both ends, side panels are vertically provided on both sides of the surface of the base plate, side grooves are provided on the upper inner walls of the side panels, and a rotatable central rotating box is installed at the center of the base plate; a movable groove is opened in the central rotating box, a movable arm slides through the inside of the movable groove, a sliding sleeve is provided at one end of the movable arm, a rotatable cleaning brush column is provided on the top of the sliding sleeve, a translation rod is slidably installed between the two sets of side panels, the sliding sleeve is installed on the translation rod, and a scraping strip is provided on the bottom surface of the translation rod; an eighth driving rod is provided on the bottom surface of the base plate.

[0015] Furthermore, a side exhaust hole is opened at the lower part of the inner wall of the side panel, and a high-pressure exhaust head is provided at the center of the surface of the center rotating box. The side exhaust hole and the high-pressure exhaust head are connected to the circulating air box. The high-pressure exhaust head outputs cold air from the center into the casting box, and the side exhaust hole sucks in hot air flowing to both sides.

[0016] The present invention provides a mold quick maintenance lost foam casting device. Compared with the prior art, it has the following beneficial effects: 1. By switching the main shaft, the sand filling component, compaction component, film upper component and lost foam placement station can be driven to be alternately placed above the production station. In this way, the four processes can be quickly alternated, effectively improving the efficiency of lost foam casting. There is no need for the casting box to turn back and forth between multiple stations, effectively reducing the workload of workers; 2. The sand filling component can quickly put the molding sand into the casting box, and the upper film component can cover the film on the middle sand, which improves the working efficiency of sand filling and film covering; the compaction component can first compact the bottom sand to ensure the tightness of the bottom sand, without the need for manual use of tools to beat and press down; after the film covering is completed, the compaction component can be adjusted to expose the casting tube and press down the middle sand to ensure the tightness of the middle sand. At the same time, the film will also be pressed down together to ensure the fit between the film and the middle sand; after the pressing is completed, the compaction component can cut off the part of the film covering the casting tube to fully expose the casting tube; 3. The casting box is designed with a first side baffle and a second side baffle that are movable at both ends. When the casting is completed and the sand is unloaded, the first clamping assembly and the second clamping assembly can respectively drive the first side baffle and the second side baffle to move, so that the first side baffle pushes the sand material and the workpiece to be quickly transferred to the vibrating separation box, so that the sand material and the workpiece are separated, thereby effectively improving the unloading efficiency and making the sand unloading more thorough; the first clamping assembly and the second clamping assembly can also drive the casting box to flip so that the opening of the casting box faces downward, so that the sand cleaning assembly can be extended into the casting box to clean the casting box to remove the sand material attached to the inner wall of the casting box, and to reduce the temperature of the casting box for the next sand mold production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 The schematic diagram of the structure of the mold quick maintenance lost foam casting equipment of the present invention is shown; Figure 2 A schematic diagram of the casting box structure of the present invention is shown; Figure 3 The schematic diagram of the structure of the casting box under the sand of the present invention is shown; Figure 4 The schematic diagram of the structure of the sand mold making mechanism of the present invention is shown; Figure 5 The schematic diagram of the structure of the sand filling assembly of the present invention is shown; Figure 6 The schematic diagram of the structure of the upper membrane assembly of the present invention is shown; Figure 7 A schematic diagram of the compaction assembly structure of the present invention is shown; Figure 8 A schematic diagram of the cross-sectional structure of the compaction assembly of the present invention is shown; Fig. 9 It shows a schematic structural diagram of the compaction assembly of the present invention in a state of pressing the bottom sand; Fig.10 It shows a schematic structural diagram of the compaction assembly of the present invention in a state of pressing down medium sand; Fig.11 A schematic diagram of the structure of the sand mold maintenance mechanism of the present invention is shown; Fig.12 A schematic diagram of the structure of the second clamping assembly of the present invention is shown; Fig.13 It shows a schematic structural diagram of the first side baffle of the present invention in a state of pushing the material down; Fig.14 The schematic diagram of the structure of the sand cleaning assembly of the present invention is shown; As shown in the figure: 1. casting box, 11. first side baffle, 111. elastic block, 112. blocking plate, 113. slider, 12. second side baffle, 13. slot, 14. translation slide rail, 15. first receiving port, 16. second receiving port, 17. matching slot, 18. sleeve, 19. negative pressure joint, 2. conveying track, 3. sand mold making mechanism, 31. base, 32. switching spindle, 33. top frame, 34. sand filling assembly, 341. first driving rod, 342. cover plate, 343. sand throwing pipe, 344. 4. stirring blade, 35. upper film assembly, 351. second driving rod, 352. first moving guide rail, 353. storage seat, 354. translation cutter, 355. first restraining clamp, 356. second restraining clamp, 4. compacting assembly, 41. third driving rod, 42. pressing plate, 421. avoidance hole, 43. fixing ring, 431. fixing rod, 432. driving gear, 44. gear ring, 45. horizontal telescopic rod, 46. fourth driving rod, 47. cutting motor, 471. cutting wheel, 5. receiving assembly, 51. Fifth driving rod, 52, lower plate, 53, vibration plate, 54, matching block, 6, unloading assembly, 61, second moving guide rail, 62, bottom bracket, 621, sixth driving rod, 63, opening and closing guide rail, 64, first clamping assembly, 641, first hanging arm, 642, first magnetic plate, 643, first flip motor, 65, second clamping assembly, 651, seventh driving rod, 652, second hanging arm, 653, fine-tuning guide rail, 654, third hanging arm, 655, second magnetic plate, 656, second flip motor, 6 57. Telescopic splint, 7. Vibration separation box, 8. Sand cleaning component, 81. Bottom plate, 811. Collecting box, 82. Side panel, 821. Side groove, 822. Side exhaust hole, 83. Center rotating box, 831. Movable groove, 832. High-pressure exhaust head, 84. Movable arm, 85. Sliding sleeve, 86. Cleaning brush column, 87. Translation rod, 871. Scraping strip, 88. Eighth driving rod, 89. Circulating bellows, 91. Bottom sand, 92. Middle sand, 93. Vanishing profile, 94. Casting tube, 95. Film, 9a. Sand storage box. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are 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.

[0020] In order to solve the technical problems in the background technology, the following mold quick maintenance lost foam casting equipment is provided: Combination Figure 1-Figure 14As shown, the present invention provides a mold quick maintenance lost foam casting device, a casting box 1, which is a rectangular parallelepiped structure with an open top, a first side baffle 11 is provided at one end of the casting box 1, and a second side baffle 12 is provided at the other end; The conveying track 2 has a production position at one end and a discharge position at the other end. A vibration separation box 7 and a sand cleaning component 8 are provided at the discharge position, and a receiving component 5 is provided at the production position. The sand mold making mechanism 3 is placed on one side of the making position. The sand mold making mechanism 3 includes a base 31. The top of the base 31 is rotatably connected to the switching spindle 32. The top of the switching spindle 32 is provided with a top frame 33. Four stations are arranged on the outer side of the top frame 33. Three of the four stations are respectively installed with a sand filling component 34, a compaction component 4 and an upper film component 35. The remaining one of the four stations is an open lost foam placement station. The sand filling component 34 is used to evenly fill the bottom sand 91 and the middle sand 92 into the casting box 1. The lost foam placement station is used to manually place the lost profile 93 on the bottom sand 91 and install two groups of casting tubes 94. The upper film component 35 is used to place the film 95 on the middle sand 92. The compaction component 4 is used to compact the bottom sand 91 and the middle sand 92 and open a through hole on the film 95 to expose the casting tube 94. The sand mold maintenance mechanism includes a discharge assembly 6, a first clamping assembly 64 and a second clamping assembly 65. The top end of the discharge assembly 6 is connected to the first clamping assembly 64 and the second clamping assembly 65, and a vibration separation box 7 is provided on one side of the second clamping assembly 65. The sand mold maintenance mechanism includes the following working states: in the first state, the second clamping assembly 65 pulls up the second side baffle 12, the first clamping assembly 64 pushes the first side baffle 11, and the first side baffle 11 pushes the sand material to be transferred to the vibration separation box 7; in the second state, the first clamping assembly 64 and the second clamping assembly 65 drive the casting box 1 to flip downward, and the sand cleaning assembly 8 cleans the residue in the casting box 1 and reduces the temperature of the casting box 1.

[0021] In the above scheme: 1. By switching the main shaft 32, the sand filling assembly 34, the compacting assembly 4, the upper film assembly 35 and the lost foam placement station can be driven to be alternately placed above the production station. In this way, the four processes can be quickly alternated, effectively improving the efficiency of lost foam casting. There is no need for the casting box 1 to turn back and forth between multiple stations, effectively reducing the workload of workers; 2. The sand filling component 34 can quickly put the molding sand into the casting box 1, and the upper film component 35 can cover the film 95 on the middle sand 92, thereby improving the working efficiency of sand filling and film covering; 3. The compacting component 4 can first compact the bottom sand 91 to ensure the tightness of the bottom sand 91 without manual use of tools to pat and press down; after the film 95 is covered, the compacting component 4 can be adjusted to expose the casting tube 94 and press down the medium sand 92 to ensure the tightness of the medium sand 92. At the same time, the film 95 will also be pressed down to ensure the fit between the film 95 and the medium sand 92; after the pressing is completed, the compacting component 4 can cut off the part of the film 95 covering the casting tube 94 to fully expose the casting tube 94; 4. The casting box 1 is designed to have a first side baffle 11 and a second side baffle 12 at both ends. When the casting is completed and the sand is unloaded, the first clamping assembly 64 and the second clamping assembly 65 respectively drive the first side baffle 11 and the second side baffle 12 to move, so that the first side baffle 11 pushes the sand material and the workpiece to be quickly transferred to the vibration separation box 7, so that the sand material and the workpiece are separated, thus effectively improving the unloading efficiency and making the unloading more thorough; 5. The first clamping assembly 64 and the second clamping assembly 65 can also drive the casting box 1 to flip so that the opening of the casting box 1 faces downward. In this way, the sand cleaning assembly 8 can extend into the casting box 1 to clean the casting box 1 to remove the sand attached to the inner wall of the casting box 1, and to reduce the temperature of the casting box 1 to facilitate the production of the next sand mold.

[0022] In this embodiment, a U-shaped first receiving opening 15 is provided at one end of the casting box 1, and a U-shaped second receiving opening 16 is provided at the other end. The inner bottom end of the second receiving opening 16 is flush with the inner bottom surface of the casting box 1, and the inner bottom end of the first receiving opening 15 is higher than the inner bottom surface of the casting box 1. The cross-sectional area of ​​the first receiving opening 15 is smaller than the cross-sectional area of ​​the second receiving opening 16. A card slot 13 is symmetrically provided at the bottom of one end of the casting box 1; the first side baffle 11 is fitted to stop the inner side of the first receiving opening 15, and the outer wall of the first side baffle 11 is provided with a There is a blocking plate 112, which is embedded in the first receiving port 15. The bottom end of the first side baffle 11 is symmetrically provided with an elastic block 111, which is engaged and embedded in the card slot 13. Both sides of the top of the casting box 1 are provided with translation rails 14. The top of the first side baffle 11 is symmetrically provided with sliders 113, which are slidably embedded in the translation rails 14. The inside of the second receiving port 16 is symmetrically provided with vertical grooves, and the second side baffle 12 is vertically slidably inserted into the vertical grooves. A negative pressure joint 19 is provided on the side of the casting box 1.

[0023] In the above scheme: The first side baffle 11 can slide horizontally. When in normal use, the elastic block 111 is inserted into the slot 13, and the blocking plate 112 is embedded in the first receiving opening 15, so that the first side baffle 11 performs normal side enclosure. When unloading, the first side baffle 11 is subjected to a horizontal side thrust, so that the elastic block 111 leaves the slot 13, and the first side baffle 11 can push out the sand in the casting box 1. The second side baffle 12 is in a vertically movable manner. In normal use, the second side baffle 12 closes the second receiving opening 16 under the action of gravity. When sand is discharged, the second side baffle 12 is lifted up by the second clamping assembly 65 to fully expose the second receiving opening 16, so that the sand pushed out by the first side baffle 11 can be quickly transferred to the vibration separation box 7; The negative pressure connector 19 is used to connect to an external negative pressure device during casting to extract the air in the sand material, and the film 95 can assist in improving the negative pressure suction effect from the top.

[0024] In this embodiment, the sand filling assembly 34 includes a first driving rod 341, the top end of the first driving rod 341 is connected to the top frame 33, and the bottom end is connected to the cover plate 342, the cover plate 342 is fitted on the top of the casting box 1, a sand throwing tube 343 is provided inside the cover plate 342, and a stirring blade 344 is provided in the middle of the bottom of the cover plate 342.

[0025] In the above scheme, when unloading, the cover plate 342 rotates to the top of the casting box 1, and the sand in the sand storage box 9a is sucked out to the sand throwing pipe 343 by negative pressure, and then falls into the casting box 1, and the stirring blades 344 can scatter the falling sand.

[0026] In this embodiment, the upper film assembly 35 includes a second driving rod 351, the top end of the second driving rod 351 is connected to the top frame 33, and the bottom end is connected to the first movable guide rail 352. The bottom end of the first movable guide rail 352 is slidably connected to the storage seat 353. The storage seat 353 stores a roll of film 95. The output side of the storage seat 353 is installed with a translation cutter 354 and a first constraint clamp 355. The other end of the bottom of the first movable guide rail 352 is fixed with a second constraint clamp 356. The first constraint clamp 355 and the second constraint clamp 356 are used to movably clamp the two ends of the film 95.

[0027] In the above scheme: when the upper film assembly 35 moves to above the casting box 1, the worker first places the film 95 roll in the storage seat 353, and then pulls the film 95 outward to the second constraint clamp 356, and then the storage seat 353 translates along the first movable guide rail 352, and the film 95 roll releases the film 95 of appropriate length, and then the first constraint clamp 355 clamps the film 95, and the translation cutter 354 translates to cut the film 95; the second driving rod 351 drives the first movable guide rail 352 to descend, so that the film 95 covers the casting box 1, and the first constraint clamp 355 and the second constraint clamp 356 are loosened.

[0028] In this embodiment, the compaction assembly 4 includes a third driving rod 41, the top end of the third driving rod 41 is connected to the top frame body 33, and the bottom end is connected to the pressure plate 42. The surface of the pressure plate 42 is provided with an avoidance hole 421 for avoiding the casting pipe 94. The outer periphery of each avoidance hole 421 is provided with a plurality of fixed rods 431. The top of the fixed rod 431 is provided with a fixed ring 43. The top surface of the fixed ring 43 is rotatably mounted with a gear ring 44. The side wall of the gear ring 44 is meshed and connected to the driving gear 432. The driving gear 432 is provided on the side of the fixed ring 43. A horizontal telescopic rod 45 is provided on the top surface of the gear ring 44, the inner end of the horizontal telescopic rod 45 is vertically connected to the fourth driving rod 46, the bottom end of the fourth driving rod 46 is connected to the cutting motor 47, and the bottom end of the cutting motor 47 is connected to the horizontally arranged cutting wheel 471; when the pressing plate 42 presses down the bottom sand 91, the cutting wheel 471 blocks the avoidance hole 421; when the pressing plate 42 presses down the middle sand 92, the cutting wheel 471 is lifted up and placed on one side of the casting tube 94, and the cutting wheel 471 makes a circular motion to cut off the part of the casting tube 94 wrapped by the film 95.

[0029] In the above scheme: When pressing down the bottom sand 91, the cutting motor 47 is placed above the avoidance hole 421, and the cutting wheel 471 extends into the avoidance hole 421 and blocks the avoidance hole 421. In this way, when the pressing plate 42 presses down the bottom sand 91, the bottom surface of the pressing plate 42 is a flat surface, and the cutting wheel 471 can assist in pressing down; Before pressing down the medium sand 92, the fourth driving rod 46 drives the cutting wheel 471 to be lifted up to the top of the pressing plate 42, and the horizontal telescopic rod 45 contracts, so that the cutting wheel 471 is placed on one side of the avoidance hole 421. When pressing down, the pressing plate 42 fits the medium sand 92, and the casting tube 94 extends out of the avoidance hole 421. The driving gear 432 drives the gear ring 44 to rotate, thereby driving the cutting wheel 471 to make a circular motion. At the same time, the cutting motor 47 drives the cutting wheel 471 to rotate, thereby circularly cutting the film 95.

[0030] In this embodiment, the receiving component 5 includes a fifth driving rod 51, a lower plate body 52 is provided at the top of the fifth driving rod 51, a vibration plate 53 is installed in the middle of the surface of the lower plate body 52, a matching block 54 is provided on the top of the vibration plate 53, and a matching groove 17 that is engaged with the matching block 54 is opened on the bottom surface of the casting box 1; the vibration plate 53 is used to drive the casting box 1 to shake when the sand filling component 34 is filling sand.

[0031] In the above scheme: when the casting box 1 moves to the production position, the fifth driving rod 51 drives the lower plate 52 to lift up, and the matching block 54 is embedded in the matching groove 17. After the casting box 1 is lifted up, the vibrating plate 53 can drive the casting box 1 to vibrate when vibrating.

[0032] In this embodiment, the unloading assembly 6 includes a second movable guide rail 61, a bottom bracket 62 is slidably installed on the top of the second movable guide rail 61, a sixth driving rod 621 is provided on the top of the bottom bracket 62, an opening and closing guide rail 63 is provided on the top side wall of the sixth driving rod 621, and the bottom of the opening and closing guide rail 63 is connected to the first clamping assembly 64 and the second clamping assembly 65; the first clamping assembly 64 includes a first hanging arm 641, the top of the first hanging arm 641 is slidably connected to the opening and closing guide rail 63, the bottom end of the first hanging arm 641 is rotatably connected to the first magnetic plate 642, and a first flipping motor 643 is installed at the rotating connection. The second clamping assembly 65 includes a seventh driving rod 651, which is vertically slidably installed at the bottom of the opening and closing guide rail 63. The bottom end of the seventh driving rod 651 is vertically connected to the second hanging arm 652. The outer end of the second hanging arm 652 is connected to the fine-tuning guide rail 653. The bottom end of the fine-tuning guide rail 653 is slidably installed with a third hanging arm 654. The inner side of the bottom end of the third hanging arm 654 is rotatably connected to the second magnetic plate 655 and a second flip motor 656 is installed at the rotating connection. Telescopic splints 657 are provided on both sides of the second magnetic plate 655. The two sides of the casting box 1 are symmetrically provided with clamping sleeves 18, and the telescopic splints 657 are fitted and embedded in the clamping sleeves 18.

[0033] In the above scheme: when unloading, the first hanging arm 641 moves along the opening and closing guide rail 63, so that the first magnetic plate 642 is attached to the first side baffle 11, and the seventh driving rod 651 moves along the opening and closing guide rail 63, so that the second magnetic plate is attached to the second side baffle 12, and the seventh driving rod 651 contracts, thereby driving the second side baffle 12 to be lifted up and separated from the second receiving opening 16, and the first hanging arm 641 moves horizontally, and the first magnetic plate 642 can push the first side baffle 11 to move horizontally, thereby pushing out the sand material; After the sand is discharged, the first side baffle 11 and the second side baffle 12 are reset, and the telescopic clamp 657 is retracted so that the telescopic clamp 657 is inserted into the ferrule 18. The first magnetic plate 642 and the second magnetic plate 655 are turned over synchronously so that the opening of the casting box 1 faces downward, and the sixth driving rod 621 drives the casting box 1 to descend so that the sand cleaning assembly 8 enters the casting box 1. After cleaning, the casting box 1 opens upward, and the chassis moves along the second movable guide rail 61, so that the casting box 1 is transferred to the rollers of the conveying track 2, and the rollers can drive the casting box 1 to transfer to the production position.

[0034] In this embodiment, the sand cleaning component 8 includes a base plate 81, both ends of the surface of the base plate 81 are open structures and are provided with collection boxes 811 at both ends, side panels 82 are vertically provided on both sides of the surface of the base plate 81, side grooves 821 are provided on the upper inner walls of the side panels 82, and a rotatable central rotating box 83 is installed at the center of the base plate 81; a movable groove 831 is opened in the central rotating box 83, and a movable arm 84 slides through the inside of the movable groove 831, and a sliding sleeve 85 is provided at one end of the movable arm 84, and a rotatable cleaning brush column 86 is provided on the top of the sliding sleeve 85, a translation rod 87 is slidably installed between the two groups of side panels 82, the sliding sleeve 85 is installed on the translation rod 87, and a scraping strip 871 is provided on the bottom surface of the translation rod 87; an eighth driving rod 88 is provided on the bottom surface of the base plate 81.

[0035] In the above scheme: when the central rotating box 83 rotates, it can drive the movable arm 84, the sliding sleeve 85, and the translation rod 87 to move synchronously, so that the cleaning brush column 86 can make a rectangular motion, and the cleaning brush column 86 can clean the inner wall of the casting box 1, thereby cleaning the attached sand on the inner wall of the casting box 1, and the sand material can fall onto the bottom plate 81. When the translation rod 87 moves back and forth, the scraper strip 871 can push the fallen sand material into the collection box 811, and the sand material in the collection box 811 and the sand material in the vibration separation box 7 will be drawn out into the sand storage box 9a; the translation rod 87 is located above the central rotating box 83.

[0036] In this embodiment, a side exhaust hole 822 is opened at the lower part of the inner wall of the side panel 82, and a high-pressure exhaust head 832 is provided at the center of the surface of the center rotating box 83. The side exhaust hole 822 and the high-pressure exhaust head 832 are both connected to the circulating air box 89. The high-pressure exhaust head 832 outputs cold air from the center to the casting box 1, and the side exhaust hole 822 inhales the hot air flowing to both sides.

[0037] In the above scheme: the translation rod 87 is located above the high-pressure exhaust head 832, the circulating fan discharges high-pressure air to the central rotating box 83, and then discharges high-pressure cold air upward through the high-pressure exhaust head 832, and the high-pressure cold air is discharged to the inner middle part of the casting box 1. The high-pressure cold air pushes the hot air to move around from the middle, and then the hot air is extracted through the side exhaust holes 822, and the hot air is dissipated through the heat dissipation channel in the circulating air box 89.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mold quick maintenance lost foam casting equipment, characterized in that: include: The casting box is a rectangular parallelepiped structure with an open top, and a first side baffle is provided at one end of the casting box and a second side baffle is provided at the other end; The conveying track has a production position at one end and a discharge position at the other end. The discharge position is provided with a vibration separation box and a sand cleaning component, and the production position is provided with a receiving component; A sand mold making mechanism is placed on one side of the making position. The sand mold making mechanism includes a base. The top of the base is rotatably connected to the switching spindle. The top of the switching spindle is provided with a top frame. Four stations are provided on the outside of the top frame. Three of the four stations are respectively equipped with a sand filling component, a compaction component and an upper film component. The remaining one of the four stations is an open lost foam placement station. The sand filling component is used to evenly fill the bottom sand and the medium sand into the casting box. The lost foam placement station is used to manually place the lost profile on the bottom sand and install two groups of casting pipes. The upper film component is used to place the film on the medium sand. The compaction component is used to compact the bottom sand and the medium sand and open a through hole on the film to expose the casting pipe. The sand mold maintenance mechanism includes a discharge assembly, a first clamping assembly and a second clamping assembly. The top end of the discharge assembly is connected to the first clamping assembly and the second clamping assembly, and a vibration separation box is provided on one side of the second clamping assembly. The sand mold maintenance mechanism includes the following working states: in the first state, the second clamping assembly draws up the second side baffle, the first clamping assembly pushes the first side baffle, and the first side baffle pushes the sand material to be transferred to the vibration separation box; in the second state, the first clamping assembly and the second clamping assembly drive the casting box to flip downward, and the sand cleaning assembly cleans the residue in the casting box and reduces the temperature of the casting box.

2. The mold quick maintenance lost foam casting equipment according to claim 1, characterized in that: A U-shaped first receiving opening is provided at one end of the casting box, and a U-shaped second receiving opening is provided at the other end. The inner bottom end of the second receiving opening is flush with the inner bottom surface of the casting box, the inner bottom end of the first receiving opening is higher than the inner bottom surface of the casting box, the cross-sectional area of ​​the first receiving opening is smaller than the cross-sectional area of ​​the second receiving opening, and a card slot is symmetrically provided at the bottom of one end of the casting box; the first side baffle is fitted and stopped on the inner side of the first receiving opening, and a sealing plate is provided on the outer wall of the first side baffle, and the sealing plate is embedded in the first receiving opening, and elastic blocks are symmetrically provided at the bottom end of the first side baffle, and the elastic blocks are engaged and embedded in the card slot, and translation rails are provided on both sides of the top of the casting box, and sliders are symmetrically provided on the top of the first side baffle, and the sliders are slidably embedded in the translation rails; vertical grooves are symmetrically provided inside the second receiving opening, and the second side baffle is vertically slid and inserted into the vertical groove, and a negative pressure joint is provided on the side of the casting box.

3. The mold quick maintenance lost foam casting equipment according to claim 1, characterized in that: The sand filling assembly comprises a first driving rod, the top end of which is connected to the top frame body and the bottom end is connected to the cover plate, the cover plate is fitted on the top of the casting box, a sand throwing pipe is arranged inside the cover plate, and a stirring blade is arranged in the middle of the bottom of the cover plate.

4. The mold quick maintenance lost foam casting equipment according to claim 1, characterized in that: The upper film assembly includes a second driving rod, the top end of the second driving rod is connected to the top frame, the bottom end is connected to the first movable guide rail, the bottom end of the first movable guide rail is slidably connected to the storage seat, a film roll is stored inside the storage seat, a translation cutter and a first constraint clamp are installed on the output side of the storage seat, and a second constraint clamp is fixedly provided at the other end of the bottom of the first movable guide rail, and the first constraint clamp and the second constraint clamp are used to movably clamp the two ends of the film.

5. The mold quick maintenance lost foam casting equipment according to claim 1, characterized in that: The compaction assembly includes a third driving rod, the top end of the third driving rod is connected to the top frame body, and the bottom end is connected to the pressure plate. The surface of the pressure plate is provided with an avoidance hole for avoiding the casting pipe, and the outer periphery of each avoidance hole is provided with multiple groups of fixing rods, and the top of the fixing rod is provided with a fixing ring, and the top surface of the fixing ring is rotatably installed with a gear ring, and the side wall of the gear ring is meshed and connected to the driving gear, and the driving gear is arranged on the side of the fixing ring. The top surface of the gear ring is provided with a horizontal telescopic rod, and the inner end of the horizontal telescopic rod is vertically connected to the fourth driving rod, and the bottom end of the fourth driving rod is connected to the cutting motor, and the bottom end of the cutting motor is connected to the horizontally arranged cutting wheel; when the pressure plate presses down the bottom sand, the cutting wheel blocks the avoidance hole; when the pressure plate presses down the middle sand, the cutting wheel is lifted and placed on one side of the casting pipe, and the cutting wheel moves in a circular motion to cut off the part of the casting pipe wrapped by the film.

6. The mold quick maintenance lost foam casting equipment according to claim 1, characterized in that: The receiving assembly includes a fifth driving rod, a lower plate body is provided at the top end of the fifth driving rod, a vibrating plate is installed in the middle of the surface of the lower plate body, a matching block is provided on the top of the vibrating plate, and a matching groove which is engaged with the matching block is provided on the bottom surface of the casting box; the vibrating plate is used to drive the casting box to shake when the sand filling assembly is filling sand.

7. The mold quick maintenance lost foam casting equipment according to claim 1, characterized in that: The unloading assembly includes a second movable guide rail, a bottom bracket is slidably installed on the top of the second movable guide rail, a sixth driving rod is provided on the top of the bottom bracket, an opening and closing guide rail is provided on the top side wall of the sixth driving rod, and the bottom of the opening and closing guide rail is connected to the first clamping assembly and the second clamping assembly; the first clamping assembly includes a first hanging arm, the top of the first hanging arm is slidably connected to the opening and closing guide rail, the bottom end of the first hanging arm is rotatably connected to the first magnetic suction plate, and a first flip motor is installed at the rotating connection.

8. The mold quick maintenance lost foam casting equipment according to claim 7, characterized in that: The second clamping assembly includes a seventh driving rod, which is vertically slidably installed at the bottom of the opening and closing guide rail, the bottom end of the seventh driving rod is vertically connected to the second hanging arm, the outer end of the second hanging arm is connected to the fine-tuning guide rail, the bottom end of the fine-tuning guide rail is slidably installed with a third hanging arm, the inner side of the bottom end of the third hanging arm is rotatably connected to the second magnetic plate and a second flip motor is installed at the rotating connection, telescopic splints are provided on both sides of the second magnetic plate, and clamping sleeves are symmetrically provided on both sides of the casting box, and the telescopic splints are fitted and embedded in the clamping sleeves.

9. The mold quick maintenance lost foam casting equipment according to claim 1, characterized in that: The sand cleaning component includes a base plate, both ends of the surface of the base plate are open structures and are provided with collection boxes at both ends, side panels are vertically provided on both sides of the surface of the base plate, side grooves are provided on the upper inner walls of the side panels, and a rotatable central rotating box is installed at the center of the base plate; a movable groove is opened in the central rotating box, a movable arm slides through the inside of the movable groove, a sliding sleeve is provided at one end of the movable arm, a rotatable cleaning brush column is provided on the top of the sliding sleeve, a translation rod is slidably installed between the two sets of side panels, the sliding sleeve is installed on the translation rod, and a scraping strip is provided on the bottom surface of the translation rod; an eighth driving rod is provided on the bottom surface of the base plate.

10. The mold quick maintenance lost foam casting equipment according to claim 9, characterized in that: A side exhaust hole is opened at the lower part of the inner wall of the side panel, and a high-pressure exhaust head is provided at the center of the surface of the central rotating box. The side exhaust hole and the high-pressure exhaust head are both connected to the circulating bellows. The high-pressure exhaust head outputs cold air into the casting box from the center, and the side exhaust hole inhales hot air.

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