A lost foam casting equipment with rapid 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:

[0003] 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.

[0004] 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.

[0005] 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

[0006] 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.

[0007] 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;

[0008] 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;

[0009] The sand mold manufacturing mechanism is placed on one side of the manufacturing position. The sand mold manufacturing mechanism includes a base. The top of the base is rotatably connected to a switching main shaft. The top of the switching main shaft is provided with a top frame body. There are four workstations on the outside of the top frame body. Three of the four workstations are respectively equipped with a sand filling component, a compaction component, and a film covering component. The remaining one of the four workstations is an open lost foam placement workstation. The sand filling component is used to evenly fill the bottom sand and middle sand into the casting box. The lost foam placement workstation is used for manually placing the lost foam profile on the bottom sand and installing two groups of casting pipes. The film covering component is used to place the thin film on the middle sand. The compaction component is used to compact the bottom sand and middle sand and open a through hole exposing the casting pipes on the thin film.

[0010] The sand mold maintenance mechanism includes a discharging component, a first clamping component, and a second clamping component. The top of the discharging component is connected to the first clamping component and the second clamping component. There is a vibration separation box on one side of the second clamping component. The sand mold maintenance mechanism includes the following working states: In the first state, the second clamping component pulls out the second side baffle, the first clamping component pushes the first side baffle, and the first side baffle pushes the sand material onto the vibration separation box. In the second state, the first clamping component and the second clamping component drive the casting box to flip downwards, and the sand cleaning component cleans the residues in the casting box and reduces the temperature of the casting box.

[0011] Further, one end of the casting box is provided with a U-shaped first storage opening, and the other end is provided with a U-shaped second storage opening. The inner bottom end of the second storage opening is flush with the inner bottom surface of the casting box. The inner bottom end of the first storage opening is higher than the inner bottom surface of the casting box. The cross-sectional area of the first storage opening is smaller than that of the second storage opening. Symmetrically arranged clamping grooves are provided at the bottom of one end of the casting box. The first side baffle fits and stops inside the first storage opening. A sealing plate is provided on the outer wall of the first side baffle, and the sealing plate is embedded in the first storage opening. Elastic clamping blocks are symmetrically provided at the bottom end of the first side baffle, and the elastic clamping blocks are clamped and embedded in the clamping grooves. Translation slide rails are provided on both sides of the top of the casting box. Sliders are symmetrically provided at the top end of the first side baffle, and the sliders are slidably embedded in the translation slide rails. Vertically arranged grooves are symmetrically provided inside the second storage opening, and the second side baffle is vertically slidably inserted into the grooves. A negative pressure joint is provided on the side of the casting box.

[0012] Further, the sand filling component includes a first driving rod. The top of the first driving rod is connected to the top frame body, and the bottom end is connected to a cover plate. The cover plate is cooperatively covered on the top of the casting box. A sand feeding pipe is provided inside the cover plate, and a stirring blade is provided in the middle of the bottom of the cover plate.

[0013] 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.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] Further, the sand cleaning component includes a bottom plate. Both ends of the surface of the bottom plate are of an open structure, and collecting boxes are provided at both ends. On both sides of the surface of the bottom plate, side enclosing plates are vertically provided. Above the inner wall of the side enclosing plates, side grooves are provided. At the center of the bottom plate, a rotatable center rotating box is installed; an activity groove is formed in the center rotating box, an activity arm slides through the activity groove, one end of the activity arm is provided with a sliding sleeve, the top of the sliding sleeve is provided with a rotatable cleaning brush column, a translation rod is slidably installed between the two side enclosing plates, the sliding sleeve is installed on the translation rod, and a hair scraping strip is provided on the bottom surface of the translation rod; an eighth driving rod is provided on the bottom surface of the bottom plate.

[0019] Further, side air extraction holes are formed below the inner wall of the side enclosing plates, a high-pressure exhaust head is provided at the center of the surface of the center rotating box, both the side air extraction holes and the high-pressure exhaust head are communicated with a circulating air box, the high-pressure exhaust head outputs cold air into the casting box from the center, and the side air extraction holes suck the hot air flowing to both sides.

[0020] The present invention provides a lost foam casting device for rapid maintenance of a mold. Compared with the prior art, the following beneficial effects are achieved:

[0021] 1. By switching the main shaft, the sand filling component, the compaction component, the film covering component and the lost foam placing station can be driven to be alternately placed above the production position. In this way, rapid alternate operation of the four processes can be realized, effectively improving the lost foam casting efficiency. There is no need for the casting box to rotate back and forth among multiple stations, effectively reducing the labor intensity of workers;

[0022] 2. The sand filling component can quickly put molding sand into the casting box, and the film covering component can cover the film above the medium sand, improving 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 pat and press down; after the film covering is completed, the compaction component can be adjusted to expose the pouring pipe and press down the medium sand to ensure the tightness of the medium sand. At the same time, the film will also be pressed down together to ensure the fitting degree between the film and the medium sand; after the pressing is completed, the compaction component can cut off the part of the film covering the pouring pipe to fully expose the pouring pipe;

[0023] 3. The design of the casting box has movable first side baffles and second side baffles at both ends. When the sand is discharged after casting, the first clamping component and the second clamping component respectively drive the first side baffle and the second side baffle to act, so that the first side baffle pushes the sand material together with the workpiece to be quickly transferred onto the vibration separation box, separating the sand material from the workpiece. In this way, the blanking efficiency is effectively improved and the sand discharge is more thorough; the first clamping component and the second clamping component can also drive the casting box to turn over so that the opening of the casting box faces downward. In this way, the sand cleaning component can extend into the casting box, and the casting box can be cleaned to remove the sand material attached to the inner wall of the casting box, and the temperature of the casting box can also be reduced for the next production of the sand mold. Description of the Drawings

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 Shows a schematic structural diagram of the mold quick-maintenance lost foam casting equipment of the present invention;

[0026] Figure 2 Shows a schematic structural diagram of the casting box of the present invention;

[0027] Figure 3 Shows a schematic structural diagram of the lower sand state of the casting box of the present invention;

[0028] Figure 4 Shows a schematic structural diagram of the sand mold manufacturing mechanism of the present invention;

[0029] Figure 5 Shows a schematic structural diagram of the sand filling component of the present invention;

[0030] Figure 6 Shows a schematic structural diagram of the upper film component of the present invention;

[0031] Figure 7 Shows a schematic structural diagram of the compaction component of the present invention;

[0032] Figure 8 Shows a schematic cross-sectional structure diagram of the compaction component of the present invention;

[0033] Figure 9 Shows a schematic structural diagram of the state of the compaction component pressing down the bottom sand of the present invention;

[0034] Figure 10 Shows a schematic structural diagram of the state of the compaction component pressing down the middle sand of the present invention;

[0035] Figure 11 Shows a schematic structural diagram of the sand mold maintenance mechanism of the present invention;

[0036] Figure 12 Shows a schematic structural diagram of the second clamping component of the present invention;

[0037] Figure 13 Shows a schematic structural diagram of the state of the first side baffle pushing and feeding sand downward of the present invention;

[0038] Figure 14 Shows a schematic structural diagram of the sand cleaning component of the present invention;

[0039] 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

[0040] 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.

[0041] In order to solve the technical problems in the background technology, the following mold quick maintenance lost foam casting equipment is provided:

[0042] Combination Figures 1-14As 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;

[0043] 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.

[0044] 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.

[0045] 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.

[0046] In the above scheme:

[0047] 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;

[0048] 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;

[0049] 3. The compaction component 4 can first compact the bottom sand 91 to ensure the tightness of the bottom sand 91, eliminating the need for manual tamping with tools; after the film 95 is completely covered, the compaction component 4 can be adjusted to expose the casting pipe 94 and press down the middle sand 92 to ensure the tightness of the middle sand 92. At the same time, the film 95 will also be pressed down accordingly to ensure the degree of adhesion between the film 95 and the middle sand 92; after the pressing is completed, the compaction component 4 can cut off the part of the film 95 covering the casting pipe 94, so that the casting pipe 94 is fully exposed.

[0050] 4. The casting box 1 is designed with movable first side baffle 11 and second side baffle 12 at both ends. When pouring the lower sand, the first clamping component 64 and the second clamping component 65 can drive the first side baffle 11 and the second side baffle 12 to act respectively, so that the first side baffle 11 can push the sand material together with the workpiece to the vibration separation box 7 quickly, separating the sand material from the workpiece. In this way, the blanking efficiency is effectively improved and the lower sand is more thorough.

[0051] 5. The first clamping component 64 and the second clamping component 65 can also drive the casting box 1 to turn over, making the opening of the casting box 1 face downward. In this way, the sand cleaning component 8 can extend into the casting box 1 to clean the casting box 1, removing the sand material attached to the inner wall of the casting box 1 and reducing the temperature of the casting box 1 for the next production of the sand mold.

[0052] In this embodiment, a U-shaped first storage opening 15 is provided at one end of the casting box 1, and a U-shaped second storage opening 16 is provided at the other end. The inner bottom end of the second storage opening 16 is flush with the inner bottom surface of the casting box 1, the inner bottom end of the first storage opening 15 is higher than the inner bottom surface of the casting box 1, the cross-sectional area of the first storage opening 15 is smaller than that of the second storage opening 16, and clamping grooves 13 are symmetrically provided at the bottom of one end of the casting box 1; the first side baffle 11 fits and stops inside the first storage opening 15, a sealing plate 112 is provided on the outer wall of the first side baffle 11, the sealing plate 112 is embedded in the first storage opening 15, elastic clamping blocks 111 are symmetrically provided at the bottom end of the first side baffle 11, and the elastic clamping blocks 111 are clamped and embedded in the clamping grooves 13. Translation slide rails 14 are provided on both sides of the top of the casting box 1, and sliding blocks 113 are symmetrically provided at the top end of the first side baffle 11, and the sliding blocks 113 are slidably embedded in the translation slide rails 14; vertical grooves are symmetrically provided inside the second storage opening 16, and the second side baffle 12 is vertically slidably inserted into the vertical grooves, and a negative pressure joint 19 is provided on the side of the casting box 1.

[0053] In the above solution:

[0054] The first side baffle 11 can slide horizontally. When it is in normal use, the elastic clamping block 111 is snapped into the clamping groove 13, and the sealing plate 112 is embedded in the first storage opening 15, so that the first side baffle 11 can carry out normal side enclosure; during blanking, the first side baffle 11 is subjected to a horizontal thrust on the side, so that the elastic clamping block 111 leaves the clamping groove 13, and the first side baffle 11 can push out the sand in the casting box 1.

[0055] The second side baffle 12 moves vertically. When it is in normal use, the second side baffle 12 closes the second storage opening 16 under the action of gravity. During sand feeding, the second side baffle 12 is lifted by the second clamping assembly 65, and the second storage opening 16 can be completely exposed, so that the sand pushed out by the first side baffle 11 can be quickly transferred to the vibration separation box 7.

[0056] The negative pressure connector 19 is used to connect with an external negative pressure device during casting to extract the air in the sand, and the film 95 can assist in improving the negative pressure suction effect from the upper part.

[0057] 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 body 33, and the bottom end is connected to the cover plate 342. The cover plate 342 is cooperatively covered on the top of the casting box 1. A sand feeding pipe 343 is arranged inside the cover plate 342, and a stirring blade 344 is arranged in the middle of the bottom of the cover plate 342.

[0058] In the above solution: during blanking, the cover plate 342 rotates above the casting box 1, and the sand in the sand storage box 9a is extracted by negative pressure to the sand feeding pipe 343 and then falls into the casting box 1, and the stirring blade 344 can disperse the falling sand.

[0059] In this embodiment, the film feeding assembly 35 includes a second driving rod 351. The top end of the second driving rod 351 is connected to the top frame body 33, and the bottom end is connected to the first moving guide rail 352. One end of the bottom of the first moving guide rail 352 is slidably connected to the storage seat 353. A film 95 roll is stored inside the storage seat 353. A translation cutter 354 and a first restraint clip 355 are installed on the output side of the storage seat 353. The other end of the bottom of the first moving guide rail 352 is fixedly provided with a second restraint clip 356. The first restraint clip 355 and the second restraint clip 356 are used to movably clamp both ends of the film 95.

[0060] In the above solution: When the upper film assembly 35 moves above the casting box 1, the worker first places the film roll 95 in the storage seat 353, then pulls the film 95 outwards into the second restraint bar 356. Subsequently, the storage seat 353 translates along the first moving guide rail 352, and the film roll 95 releases an appropriate length of the film 95. Then, the first restraint bar 355 clamps the film 95, and the translation cutter 354 translates to cut off the film 95. The second driving rod 351 drives the first moving guide rail 352 to descend, so that the film 95 covers the casting box 1, and the first restraint bar 355 and the second restraint bar 356 are loosened.

[0061] 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 a pressing plate 42. Avoidance holes 421 for avoiding the casting pipe 94 are formed on the surface of the pressing plate 42. A plurality of groups of fixing rods 431 are provided on the outer periphery of each avoidance hole 421. A fixing ring 43 is provided at the top end of the fixing rod 431. A toothed ring 44 is rotatably installed on the top surface of the fixing ring 43. The side wall of the toothed ring 44 is meshed and connected to a driving gear 432. The driving gear 432 is arranged at the side of the fixing ring 43. A horizontal telescopic rod 45 is provided on the top surface of the toothed ring 44. The inner end of the horizontal telescopic rod 45 is vertically connected to a fourth driving rod 46. The bottom end of the fourth driving rod 46 is connected to a cutting motor 47. The bottom end of the cutting motor 47 is connected to a 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 and placed on one side of the casting pipe 94, and the cutting wheel 471 makes a circular motion to cut off the part of the film 95 wrapping the casting pipe 94.

[0062] In the above solution:

[0063] 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.

[0064] Before pressing down the middle sand 92, the fourth driving rod 46 drives the cutting wheel 471 to be lifted above 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 middle sand 92, the casting pipe 94 extends out of the avoidance hole 421, the driving gear 432 drives the toothed ring 44 to rotate, and then drives 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 cutting the film 95 in a circular shape.

[0065] In this embodiment, the receiving assembly 5 includes a fifth driving rod 51. A lower plate body 52 is provided at the top of the fifth driving rod 51. A vibrating flat plate 53 is installed in the middle of the surface of the lower plate body 52. A matching block 54 is provided at the top of the vibrating flat plate 53. A matching groove 17 engaged with the matching block 54 is formed in the bottom surface of the casting box 1. The vibrating flat plate 53 is used to drive the casting box 1 to shake when the sand filling assembly 34 fills the sand.

[0066] In the above solution: when the casting box 1 moves to the manufacturing position, the fifth driving rod 51 drives the lower plate body 52 to lift, and the matching block 54 is embedded in the matching groove 17. After the casting box 1 is lifted, the vibrating flat plate 53 can drive the casting box 1 to vibrate when vibrating.

[0067] In this embodiment, the discharging assembly 6 includes a second moving guide rail 61. A bottom bracket 62 is slidably installed on the top of the second moving guide rail 61. A sixth driving rod 621 is provided at the top of the bottom bracket 62. An opening and closing guide rail 63 is provided on the side wall of the top of the sixth driving rod 621. The bottom of the opening and closing guide rail 63 is connected to a first clamping assembly 64 and a second clamping assembly 65. The first clamping assembly 64 includes a first lifting arm 641. The top of the first lifting arm 641 is slidably connected to the opening and closing guide rail 63. The bottom of the first lifting arm 641 is rotatably connected to a first magnetic suction 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. The seventh driving rod 651 is vertically slidably installed at the bottom of the opening and closing guide rail 63. The bottom of the seventh driving rod 651 is vertically connected to a second lifting arm 652. The outer end of the second lifting arm 652 is connected to a fine adjustment guide rail 653. A third lifting arm 654 is slidably installed at the bottom of the fine adjustment guide rail 653. The inner side of the bottom of the third lifting arm 654 is rotatably connected to a second magnetic suction plate 655, and a second flipping motor 656 is installed at the rotating connection. Telescopic clamping plates 657 are provided on both sides of the second magnetic suction plate 655. Clamping sleeves 18 are symmetrically provided on both sides of the casting box 1. The telescopic clamping plates 657 are fitted and embedded in the clamping sleeves 18.

[0068] In the above solution: when discharging, the first lifting arm 641 moves along the opening and closing guide rail 63, so that the first magnetic suction plate 642 fits and adsorbs the first side baffle 11. The seventh driving rod 651 moves along the opening and closing guide rail 63, so that the second magnetic suction plate fits and adsorbs the second side baffle 12. The seventh driving rod 651 contracts, thereby driving the second side baffle 12 to lift and separate from the second receiving port 16. The first lifting arm 641 translates, and the first magnetic suction plate 642 can push the first side baffle 11 to translate, thereby pushing out the sand material.

[0069] After the sand is filled, the first side baffle 11 and the second side baffle 12 are reset. The telescopic clamping plates 657 retract, so that the telescopic clamping plates 657 are inserted into the clamping sleeves 18. The first magnetic suction plate 642 and the second magnetic suction plate 655 are flipped synchronously, so that the opening of the casting box 1 faces downward. The sixth driving rod 621 drives the casting box 1 to descend, so that the sand cleaning assembly 8 enters the casting box 1.

[0070] After cleaning, the casting box 1 has its opening facing upwards, and the chassis body moves along the second moving 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 be transferred to the manufacturing position.

[0071] In this embodiment, the sand cleaning assembly 8 includes a bottom plate 81. Both ends of the surface of the bottom plate 81 are of open structures and both ends are provided with collection boxes 811. On both sides of the surface of the bottom plate 81, side enclosing plates 82 are vertically provided. Above the inner wall of the side enclosing plates 82, side grooves 821 are provided. At the center of the bottom plate 81, a rotatable central rotating box 83 is installed; an activity groove 831 is formed in the central rotating box 83, and an activity arm 84 slidably penetrates through the inside of the activity groove 831. One end of the activity arm 84 is provided with a sliding sleeve 85, and at the top of the sliding sleeve 85, a rotatable cleaning brush column 86 is provided. A translation rod 87 is slidably installed between the two groups of side enclosing plates 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 bottom plate 81.

[0072] In the above solution: when the central rotating box 83 rotates, it can drive the activity arm 84, the sliding sleeve 85, and the translation rod 87 to move synchronously. In this way, the cleaning brush column 86 can perform a rectangular motion, and the cleaning brush column 86 can clean the inner wall of the casting box 1, thereby cleaning the adhering sand on the inner wall of the casting box 1. The sand material can fall onto the bottom plate 81. When the translation rod 87 reciprocates, the scraping strip 871 can push the fallen sand material into the collection box 811. The sand material in the collection box 811 and the sand material in the vibration separation box 7 are both pumped into the sand storage box 9a; the translation rod 87 is located above the central rotating box 83.

[0073] In this embodiment, side air extraction holes 822 are formed in the lower part of the inner wall of the side enclosing plates 82, and a high-pressure exhaust head 832 is provided at the center of the surface of the central rotating box 83. The side air extraction holes 822 and the high-pressure exhaust head 832 are both communicated with the circulating air box 89. The high-pressure exhaust head 832 outputs cold air into the casting box 1 from the center, and the side air extraction holes 822 suck in the hot air flowing to both sides.

[0074] In the above solution: 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 upwards through the high-pressure exhaust head 832. The high-pressure cold air is discharged to the middle part of the inside of the casting box 1. The high-pressure cold air pushes the hot air to move around from the middle part, and then the hot air is extracted through the side air extraction holes 822. The hot air is dissipated through the heat dissipation channels in the circulating air box 89.

[0075] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0076] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate 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 comprises 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 arranged on one side of the second clamping assembly; the sand mold maintenance mechanism comprises the following working states: in the first state, the second clamping assembly pulls 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; 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.

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 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.

6. 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.

7. The mold quick maintenance lost foam casting equipment according to claim 6, 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.

8. 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.

9. The mold quick maintenance lost foam casting equipment according to claim 8, 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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