High-Cr nickel-based high-temperature alloy lost foam casting device

Abstract

The invention relates to a high-Cr nickel-based high-temperature alloy lost foam casting device which comprises a sand box, a compaction mechanism, a placement mechanism and a compaction mechanism, an evaporation tank is installed on the right side of an anaesthesia machine body, and the evaporation tank is connected with the anaesthesia machine body in a communicating mode. Due to the fact that the filling direction of dry sand is from top to bottom and various gaps exist in the foam mold structure, the gaps are possibly difficult to be filled with the dry sand from top to bottom, and the quality problem of a finished casting after follow-up casting is caused. The adhesion condition of the bottom of a casting after subsequent casting is easily influenced, and the quality of the casting is influenced.

Description

Technical Field

[0001] The invention relates to the technical field related to molds, and in particular to a high-Cr nickel-based high-temperature alloy lost foam casting device. Background Art

[0002] Nickel-based high-temperature alloys not only have excellent high-temperature oxidation resistance and corrosion resistance, but also have excellent high-temperature strength, creep strength, durability, fatigue resistance and other comprehensive properties. Therefore, nickel-based high-temperature alloys are not only key materials for high-temperature components of aviation and aerospace engines, but also indispensable and important materials in industrial fields such as ships, energy, and petrochemicals. They have become one of the important indicators of a country's material development level. In the lost foam casting process, the vibration device is a key equipment in the lost foam casting process. Usually, the foam mold is buried in dry sand and vibrated. In this process, vibration can ensure that the quartz sand fully fills the gaps in the model cluster and obtains a better detail replication effect.

[0003] Existing vibration compaction devices, such as the Chinese patent with announcement number CN220805426U, disclose a sand vibration compaction device for spacer iron lost foam casting, which includes a bottom plate, pillars are installed at the four corners of the upper surface of the bottom plate, air springs are installed on the top of the pillars, a bearing box is installed on the top of the four air springs, a vibration motor is installed at the bottom of the bearing box, mounting blocks are installed on the outer surfaces of both sides of the bearing box, two U-shaped clamps are symmetrically arranged on the upper side of the bearing box, and the two ends of the U-shaped clamps extend into the mounting blocks on both sides respectively, and a clamping mechanism capable of driving the two U-shaped clamps to move inward or outward at the same time is arranged inside the mounting block, and a scraper is installed on the lower surface of the U-shaped clamp, and bristles are arranged on the lower surface of the scraper. The two U-shaped clamps are driven to move by the clamping mechanism, so the bristles can be driven to clean the quartz sand splashed on the upper side of the bearing box, and the two U-shaped clamps can also quickly fix the sand box to avoid position displacement during the vibration process, which affects the vibration effect.

[0004] The above-mentioned existing technology center mainly considers the situation of quartz sand splashing, but does not take into account that during the compaction process, since the filling direction of dry sand is from top to bottom and there are various gaps in the foam mold structure, it may be difficult for the dry sand from top to bottom to fill the gaps, resulting in quality problems in the finished castings after subsequent casting. In addition, the bottom of the existing foam mold may contact the bottom of the sand box during the sand filling process, which may easily affect the adhesion of the bottom of the casting after the subsequent casting is completed, thereby affecting the quality of the casting.

[0005] Based on this, there is still room for improvement on the basis of the existing vibration compaction device. Summary of the invention

[0006] The purpose of the present invention is to provide a high-Cr nickel-based high-temperature alloy lost foam casting device to solve the deficiencies in the above-mentioned prior art.

[0007] In order to achieve the above object, the present invention provides the following technical solutions: A high-Cr nickel-based high-temperature alloy lost foam casting device comprises a sand box; a vibrating mechanism installed in the middle of the bottom of the sand box; a placing mechanism installed inside the sand box, and the placing mechanism is arranged symmetrically, the vibrating mechanism and the placing mechanism cooperate with each other, a foam mold is placed on the placing mechanism, and dry sand is filled into the sand box; a compacting mechanism is installed on one side of the sand box, the number of the compacting mechanisms is two, after the vibrating mechanism compacts the foam mold dry sand on the placing mechanism, the placing mechanism withdraws outwards to trigger the compacting mechanism to move inwards to further compact the dry sand.

[0008] As a preferred technical solution of the present invention, the compaction mechanism includes a base, which is installed in the middle of the bottom of the sand box, and a rotating component installed in the middle of the base; a vibration frame, which is slidably arranged at the upper end of the base; a vibration plate, which is slidably arranged at the upper end of the base, and the vibration plate is located inside the vibration frame, and the vibration frame and the vibration plate are intermittently vibrated up and down by the rotating component to compact the dry sand around the bottom of the foam mold; a support trigger member, which is installed on the base, and the support trigger member is used to auxiliary support the placement mechanism and lock the position of the rotating component.

[0009] As a preferred technical solution of the present invention, the rotating assembly includes an electric turntable, a vibrating member 1, a vibrating member 2, and an extrusion group. The electric turntable is installed in the middle of the base. An annular groove is provided on the edge of the electric turntable. The vibrating member 1 and the vibrating member 2 are sliding up and down from the outside to the inside in sequence. The extrusion group horizontally slidingly arranged in the annular groove extrude and fit the vibrating member 1 and the vibrating member 2.

[0010] As a preferred technical solution of the present invention, the vibrator 1 and the vibrator 2 are components with the same structure and size, a roller is arranged on the inner side of the lower end of the vibrator 1, and the upper end of the vibrator 1 is an arc structure.

[0011] As a preferred technical solution of the present invention, the extrusion group includes a sliding member, a built-in spring and an extrusion block. The sliding member is horizontally slidably arranged in an arc groove. An internal spring is connected between the inner end surface of the sliding member and the arc groove. Extrusion blocks are evenly installed on the sliding member. The number of extrusion blocks is two. The extrusion block located on the outside is used in cooperation with the lower end of the vibrating member one for extrusion, and the extrusion block located on the inside is used in cooperation with the lower end of the vibrating member two for extrusion. Ball bearings are evenly arranged on the outer end surface of the sliding member.

[0012] As a preferred technical solution of the present invention, an extrusion column 1 is provided at the lower end of the vibration frame, and an extrusion column 2 is provided at the lower end of the vibration plate. The length of the extrusion column 1 is greater than the length of the extrusion column 2, and the extrusion column 1 is used in conjunction with the upper end of the vibration component 1, and the extrusion column 2 is used in conjunction with the upper end of the vibration component 2.

[0013] As a preferred technical solution of the present invention, the support trigger member includes a lifting unit and a support rod. The lifting unit is installed on the side wall of the inner cavity of the base. The lifting unit controls the support rod to lift and lower. A corresponding groove is opened in the middle of the support rod, and the lower end inclined surface of the corresponding groove is a structure that gradually tilts downward from the outside to the inside.

[0014] As a preferred technical solution of the present invention, the placement mechanism includes an electric slider, a movable frame, a support frame, a grid plate, and a contact head. The electric slider is installed on the side wall of the sand box, a U-shaped movable frame is arranged between the electric sliders, a U-shaped support frame is arranged inside the movable frame for sliding up and down, a grid plate is installed inside the support frame, and a contact head is installed on the outer side of the movable frame. The upper end of the support rod of the initial height is clamped in the clamping groove opened at the lower edge of the grid plate.

[0015] As a preferred technical solution of the present invention, the compaction mechanism includes a guide block, a compaction plate, a linkage assembly, and loose parts. The guide block is installed on the inner wall of the sand box, and a compaction plate is slidably mounted on the guide block. A linkage assembly is arranged in the built-in cavity of the guide block. The linkage assembly is used to control the horizontal movement of the compaction plate. The upper side wall of the compaction plate is evenly provided with loose parts from top to bottom.

[0016] As a preferred technical solution of the present invention, the linkage assembly includes a gear condition, an elastic telescopic rod, an alignment head, a connecting frame, and a rack. The gear condition is horizontally slidably arranged in the built-in cavity, an elastic telescopic rod is connected between the gear condition and the built-in cavity, an alignment head corresponding to the position of the contact head is installed at the inner end of the gear condition, a gear is meshed between the gear condition and the rack, the gear is rotatably arranged in the built-in cavity, the rack is installed at the side wall position of the connecting frame, and the outer end of the connecting frame is installed on the compacting plate.

[0017] As a preferred technical solution of the present invention, the loose parts include an inner core rod, a connecting sleeve, and a breaking head. The inner core rod is installed on a compacting plate, and the inner core rod sliding sleeve is arranged inside the connecting sleeve. The connecting sleeve and the inner core rod are elastically connected. The breaking heads are symmetrically and slidably arranged at the upper and lower ends of the connecting sleeve. The breaking heads are used for extrusion cooperation with the extrusion groove opened on the inner core rod, and the inner wall of the extrusion groove is paved with a magnetic layer. The breaking head is made of iron material.

[0018] In summary, this application includes the following beneficial technical effects: The invention discloses a high-Cr nickel-based high-temperature alloy lost foam casting device. The invention intermittently vibrates the area below the foam mold so that the dry sand below the foam mold can enter the tiny foam mold gap, and the vibration also improves the compactness of the lower area of ​​the dry sand. At the same time, the invention places the foam mold on a grid plate to ensure that it does not contact the bottom of the sand box (separated placement), and the subsequent grid plate can be withdrawn so that the foam mold is completely in the dry sand. When the grid plate is withdrawn outward, in order to maintain the compactness of the dry sand, the invention further compacts the dry sand by squeezing the two sides toward each other, thereby ensuring the compaction degree of the dry sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 is an overall cross-sectional view of the present invention; Figure 3 It is a top view of the electric turntable, the first vibrating member, and the second vibrating member of the present invention; Figure 4 The present invention Figure 2 A local enlarged view of point X; Figure 5 The present invention Figure 2 A local enlarged view of the Y position; Figure 6 The present invention Figure 2 A local enlarged view of the Z position; Figure 7 The present invention Figure 2 A partial enlarged view of point A. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-Figure 7 This application is described in further detail.

[0021] An embodiment of the present application discloses a high-Cr nickel-based high-temperature alloy lost foam casting device. The present application squeezes and compacts the dry sand in the sand box by vibrating the bottom of the area below the foam mold and squeezing the two sides, thereby improving the compactness between the dry sand.

[0022] Reference Figure 1 to Figure 2As shown, a high-Cr nickel-based high-temperature alloy lost foam casting device disclosed in this embodiment includes a sand box 1, a vibrating mechanism 2, a placing mechanism 3, and a compacting mechanism 4. The sand box 1 is a fixed foundation, the vibrating mechanism 2 is installed in the middle of the bottom of the sand box 1, the placing mechanism 3 is installed inside the sand box 1, and the placing mechanism 3 is arranged symmetrically. The vibrating mechanism 2 and the placing mechanism 3 cooperate with each other, the foam mold is placed on the placing mechanism 3, and the dry sand is filled into the sand box 1. The compacting mechanism 4 is installed on one side of the sand box 1. The number of the compacting mechanisms 4 is two. After the vibrating mechanism 2 vibrates the foam mold dry sand on the placing mechanism 3, the placing mechanism 3 withdraws outward to trigger the compacting mechanism 4 to move inward to further compact the dry sand.

[0023] In the actual operation process, the foam mold is placed on the placement mechanism 3, and the dry sand is filled into the sand box 1 (the filling area is the area between the compaction mechanism 4 and the sand box 1). After filling, the area below the foam mold is preferentially vibrated by the vibration mechanism 2, so that the dry sand particles enter the gap of the foam mold faster (the selection of the foam mold, according to the material and structural characteristics of the tray casting, selects the appropriate specifications of foam plastic as the pattern material, determines the formula of the lost foam coating, ensures that the foam pattern has excellent performance after coating, and reasonably designs the mold structure to ensure sufficient rigidity and strength), which improves the filling efficiency. The compaction is filled to a certain degree. After compaction, the placing mechanism 3 is withdrawn to both sides so that the bottom of the foam mold is in direct contact with the dry sand. The placing mechanism 3 moving outward cooperates with the compacting mechanism 4 so that the compacting mechanisms 4 on both sides move toward each other, thereby further compacting the dry sand. Subsequently, the molten metal liquid is poured into the foam mold. The metal liquid (liquid metal of nickel-based high-temperature alloy) burns the foam mold and leaves solid metal of the same shape, thereby obtaining a casting. Subsequently, the placing mechanism 3 moves toward each other, and the compacting mechanism 4 moves in the opposite direction under the action of elasticity to loosen the dry sand, which is beneficial to the subsequent removal of the casting.

[0024] Reference Figure 2 As shown, since the filling direction of dry sand is from top to bottom, the compactness of the dry sand below the foam mold is lower than that of the upper area of ​​dry sand. The present application provides a vibration compaction mechanism 2 placed below the foam mold, and its specific structure is as follows: the vibration compaction mechanism 2 includes a base 21, a rotating assembly 22, a vibration frame 23, a vibration plate 24, and a support trigger 25. The base 21 is installed in the middle of the bottom of the sand box 1, and the rotating assembly 22 is installed in the middle of the base 21. The vibration frame 23 is slidably arranged at the upper end of the base 21, and the vibration plate 24 is slidably arranged at the upper end of the base 21, and the vibration plate 24 is located inside the vibration frame 23. The vibration frame 23 and the vibration plate 24 are intermittently vibrated up and down by the rotating assembly 22, so as to compact the dry sand around the bottom of the foam mold. The support trigger 25 is installed on the base 21, and the support trigger 25 is used to assist in supporting the placement mechanism 3 and to lock the position of the rotating assembly 22.

[0025] In the actual operation process, through the rotation of the rotating component 22, under the effect of extrusion, the vibration frame 23 and the vibration plate 24 are intermittently vibrated up and down (the vibration height of the vibration frame 23 is higher than the height of the vibration plate 24, the frequency of the vibration frame 23 is greater than the frequency of the vibration plate 24, and the peripheral frequency is greater than the middle frequency, so that the dry sand has a tendency to vibrate and gather toward the middle), thereby vibrating the lower area of ​​the foam mold. After the bottom is vibrated, the support trigger member 25 descends, so that the vibration operation disappears and the placement mechanism 3 is unlocked and movable.

[0026] Reference Figure 3 to Figure 4 As shown, the rotating assembly 22 includes an electric turntable 221, a vibrating member 1 222, a vibrating member 223, and an extrusion group 224. The electric turntable 221 is installed in the middle of the base 21. An annular groove is provided on the edge of the electric turntable 221. The vibrating member 1 222 and the vibrating member 223 are slidably arranged up and down from the outside to the inside. The extrusion group 224 horizontally slidably arranged in the annular groove extrudes and cooperates with the vibrating member 1 222 and the vibrating member 223. The extrusion group 224 completely retracted in the annular groove supports the bottom of the vibrating member 1 222 and the vibrating member 223 so that the vibrating member 1 222 and the vibrating member 223 are both in an extended state, so as to cooperate with the extrusion column 1 and the extrusion column 2. After the support trigger 25 is lowered, the support trigger 25 is supported by the support trigger 25. The cooperation between the trigger member 25 and the extrusion group 224 makes the extrusion group 224 partially extend out of the annular groove. At this time, the height of the vibrating member 222 and the vibrating member 223 drops and no longer contacts the extrusion column 1 and the extrusion column 2, and the cooperation operation stops; the vibrating member 222 and the vibrating member 223 are components with the same structure and size. A roller is arranged on the inner side of the lower end of the vibrating member 222, which reduces the difficulty of extrusion. The upper end of the vibrating member 222 is an arc structure, which reduces the difficulty of extrusion cooperation; the lower end of the vibration frame 23 is provided with an extrusion column 1, and the lower end of the vibration plate 24 is provided with an extrusion column 2. The length of the extrusion column 1 is greater than that of the extrusion column 2, and the extrusion column 1 is used in conjunction with the upper end of the vibrating member 222, and the extrusion column 2 is used in conjunction with the upper end of the vibrating member 223.

[0027] In the actual operation process, the electric turntable 221 drives the vibrating member 1 222 and the vibrating member 2 223 to rotate horizontally, and the cooperation of the vibrating member 1 222 and the vibrating member 2 223 and the extrusion column 1 and the extrusion column 2 drives the vibrating frame 23 and the vibrating plate 24 to vibrate intermittently up and down.

[0028] Reference Figure 4As shown, the extrusion group 224 includes a sliding member 2241, a built-in spring 2242 and an extrusion block 2243. The sliding member 2241 is horizontally slidably arranged in an arc groove. An built-in spring 2242 is connected between the inner end surface of the sliding member 2241 and the arc groove. The built-in spring 2242 always keeps the sliding member 2241 in a tendency to push outward. Extrusion blocks 2243 are evenly installed on the sliding member 2241. The number of extrusion blocks 2243 is two. The extrusion block 2243 located on the outside is used in cooperation with the lower end of the vibrating member 1 222 for extrusion, and the extrusion block 2243 located on the inside is used in cooperation with the lower end of the vibrating member 223 for extrusion. The outer end surface of the sliding member 2241 is evenly provided with balls to reduce friction resistance.

[0029] Reference Figure 4 As shown, the support trigger member 25 includes a lifting unit and a support rod 251. The lifting unit is installed on the side wall of the inner cavity of the base 21. The lifting unit controls the support rod 251 to lift and lower. A corresponding groove is opened in the middle of the support rod 251. The lower end slope of the corresponding groove is a structure that gradually tilts downward from the outside to the inside, which reduces the difficulty of subsequently re-squeezing the sliding member 2241 to fully retract into the annular groove.

[0030] During the actual operation, the extrusion group 224, which is completely retracted in the annular groove, has its extrusion block 2243 respectively supporting the bottom of the vibrating member 1 222 and the vibrating member 2 223 so that the vibrating member 1 222 and the vibrating member 2 223 are both in an extended state, so as to be used in conjunction with the extrusion column 1 and the extrusion column 2. After the support trigger member 25 descends, the support rod 251 is driven to descend through the lifting unit. After the corresponding groove is aligned with the position of the sliding member 2241, the sliding member 2241 is inserted into the corresponding groove under the action of the built-in spring 2242. At this time, the extrusion block 2243 is separated from the vibrating member 1 222 and the vibrating member 2 223, and the lower end surfaces of the vibrating member 1 222 and the vibrating member 2 223 are in contact with the upper end surface of the sliding member 2241. At this time, the height of the vibrating member 1 222 and the vibrating member 2 223 is reduced and no longer in contact with the extrusion column 1 and the extrusion column 2, and the coordinated operation stops.

[0031] Reference Figure 2 , Figure 5 As shown, the placement mechanism 3 includes an electric slider, a movable frame 31, a support frame 32, a grid plate 33, and a contact head 34. The electric slider is installed on the side wall of the sand box 1, and a U-shaped movable frame 31 is arranged between the electric sliders. A U-shaped support frame 32 is arranged inside the movable frame 31 to slide up and down, and a grid plate 33 is installed inside the support frame 32. A contact head 34 is installed on the outer side of the movable frame 31, and the upper end of the support rod 251 of the initial height is clamped in the clamping groove opened at the lower edge of the grid plate 33.

[0032] In the actual operation process, the foam mold is placed on the grid plate 33 (the grid plate 33 is a grid plate structure, which ensures that the foam mold can be placed while the dry sand can flow normally). After the bottom dry sand area is vibrated, the support rod 251 is driven down by the lifting unit until the upper end of the support rod 251 is out of the clamping groove position. At this time, the support frame 32 drives the grid plate 33 to drop slightly (the grid plate 33 drops a little height to separate it from the lower end surface of the foam mold as much as possible), and then the movable frame 31, the support frame 32, and the grid plate 33 are driven to move outward by the electric slider (the resistance of the movable frame 31, the support frame 32, and the grid plate 33 is small when moving, which basically does not affect the compactness of the dry sand, and the compaction mechanism 4 is used for secondary compaction later, so it will not cause looseness).

[0033] Reference Figure 6 to Figure 7 As shown, after the placement mechanism 3 is withdrawn from the bottom of the foam mold, in order to maintain the compactness of the dry sand, the present application is provided with a compaction mechanism 4 for close compaction on both sides. The specific structure is that the compaction mechanism 4 includes a guide block 41, a compaction plate 42, a linkage assembly 43, and loose parts 44. The guide block 41 is installed on the inner wall of the sand box 1, and a compaction plate 42 is slidably provided on the guide block 41. A linkage assembly 43 is provided in the built-in cavity opened by the guide block 41. The linkage assembly 43 is used to control the horizontal movement of the compaction plate 42. The upper half of the side wall of the compaction plate 42 is evenly provided with loose parts 44 from top to bottom.

[0034] Reference Figure 6 As shown, the linkage assembly 43 includes a gear condition 431, an elastic telescopic rod 432, an alignment head 433, a connecting frame 434, and a rack 435. The gear condition 431 is horizontally slidably arranged in the built-in cavity. The elastic telescopic rod 432 is connected between the gear condition 431 and the built-in cavity. The inner end of the gear condition 431 is installed with an alignment head 433 corresponding to the position of the contact head 34. A gear is meshed between the gear condition 431 and the rack 435. The gear is rotatably arranged in the built-in cavity. The rack 435 is installed at the side wall position of the connecting frame 434, and the outer end of the connecting frame 434 is installed on the compacting plate 42.

[0035] In the actual operation process, the movable frame 31, the support frame 32, and the grid plate 33 are driven to move outward by the electric slider. During the movement, the synchronously moving contact head 34 contacts the alignment head 433, and then the two move synchronously outward. With the cooperation of the gear condition 431, the gear and the rack 435, the connecting frame 434, the compacting plate 42, and the loose parts 44 are driven to move synchronously inward, and the compacting plates 42 arranged on both sides are synchronously brought close to compact, thereby further compacting the dry sand.

[0036] Reference Figure 7As shown, in the subsequent casting removal process, since the dry sand has been compacted before, it is difficult to remove the mold at present. In order to speed up the casting removal efficiency, the loose parts 44 provided in the present application are used to break up the dry sand. The specific structure is that the loose parts 44 include an inner core rod 441, a connecting sleeve 442, and a breaking head 443. The inner core rod 441 is installed on the compaction plate 42, and the inner core rod 441 is slidably sleeved inside the connecting sleeve 442. The connecting sleeve 442 and the inner core rod 441 are elastically connected. The upper and lower ends of the connecting sleeve 442 are symmetrically slidably provided with breaking heads 443. The breaking head 443 is used for extrusion cooperation with the extrusion groove opened by the inner core rod 441, and the inner wall of the extrusion groove is paved with a magnetic layer. The breaking head 443 is made of iron material.

[0037] In the actual operation process, after the casting is formed, the movable frame 31, the support frame 32, and the grid plate 33 are driven by the electric slider to move inward and reset, and the compaction plate 42 and the loose parts 44 move outward with the cooperation of the elastic telescopic rod 432 and the gear condition 431, the gear, and the rack 435. The compaction plate 42 moves outward so that the compaction area increases, so that the compacted dry sand has a tendency to diffuse, and the loose parts 44 moving outward, the inner core rod 441 of the loose parts 44 moving outward moves outward alone, thereby squeezing the breaking head 443 to extend, and then the inner core rod 441 drives the connecting sleeve 442 and the extended breaking head 443 to move outward, thereby further breaking up the dry sand.

[0038] Working principle: Step 1: Making the foam mold; Step 2: Buried box molding, dry sand is filled into the sand box 1. After filling, the area below the foam mold is first vibrated by the vibration mechanism 2, so that the dry sand particles enter the gap of the foam mold faster. After vibration, the placement mechanism 3 is withdrawn to both sides so that the bottom of the foam mold is in direct contact with the dry sand. The placement mechanism 3 moving outward cooperates with the compaction mechanism 4 so that the compaction mechanisms 4 on both sides move toward each other, thereby further compacting the dry sand. Step 3: negative pressure pouring; Step 4: Cooling; Step 5: Sand removal and cleaning. After the casting is formed, the movable frame 31, the support frame 32, and the grid plate 33 are driven by the electric slider to move inward and reset. Under the cooperation of the elastic telescopic rod 432, the gear condition 431, the gear, and the rack 435, the compacting plate 42 and the loose parts 44 move outward. The compacting plate 42 moving outward increases the compaction area, so that the compacted dry sand has a tendency to diffuse. The loose parts 44 moving outward, the inner core rod 441 of which moves outward alone, thereby squeezing the breaking head 443 to extend out. Then the inner core rod 441 drives the connecting sleeve 442 and the extended breaking head 443 to move outward, thereby further breaking up the dry sand. After the dry sand is loosened, the casting can be easily taken out. Step 6: Casting inspection.

[0039] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-Cr nickel-based high-temperature alloy lost foam casting device, characterized in that: include: Sand box (1); A vibration mechanism (2) installed in the middle of the bottom of the sand box (1); A placing mechanism (3) is installed inside the sand box (1), and the placing mechanism (3) is arranged symmetrically on both sides. The vibrating mechanism (2) cooperates with the placing mechanism (3), and the foam mold is placed on the placing mechanism (3), and dry sand is filled into the sand box (1); The compacting mechanism (4) is installed on one side of the sand box (1). There are two compacting mechanisms (4). After the compacting mechanism (2) compacts the foam mold dry sand on the placement mechanism (3), the placement mechanism (3) withdraws outwards, thereby triggering the compacting mechanism (4) to move inwards and further compact the dry sand.

2. A high-Cr nickel-based high-temperature alloy lost foam casting device according to claim 1, characterized in that: The vibration mechanism (2) comprises: A base (21) is mounted in the middle of the bottom of the sand box (1), and a rotating assembly (22) is mounted in the middle of the base (21); A vibration frame (23) is slidably disposed on the upper end of the base (21); A vibration plate (24) is slidably disposed on the upper end of the base (21) and is located inside the vibration frame (23). The vibration frame (23) and the vibration plate (24) are intermittently vibrated up and down by a rotating assembly (22) so as to compact the dry sand around the bottom of the foam mold. A support trigger member (25) is mounted on the base (21), and the support trigger member (25) is used to provide auxiliary support to the placement mechanism (3) and to lock the position of the rotating assembly (22).

3. A high-Cr nickel-based high-temperature alloy lost foam casting device according to claim 2, characterized in that: The rotating assembly (22) comprises an electric turntable (221), a first vibrating member (222), a second vibrating member (223), and an extrusion group (224); the electric turntable (221) is mounted in the middle of the base (21); an annular groove is provided on the edge of the electric turntable (221); the first vibrating member (222) and the second vibrating member (223) are slidably arranged in the annular groove from the outside to the inside in sequence, and the extrusion group (224) is horizontally slidably arranged in the annular groove to extrude and fit the first vibrating member (222) and the second vibrating member (223); The vibration member 1 (222) and the vibration member 2 (223) are components of the same structure and size. A roller is arranged on the inner side of the lower end of the vibration member 1 (222), and the upper end of the vibration member 1 (222) is an arc structure.

4. A high-Cr nickel-based high-temperature alloy lost foam casting device according to claim 3, characterized in that: The extrusion group (224) comprises a sliding member (2241), an internal spring (2242) and an extrusion block (2243); the sliding member (2241) is horizontally slidably arranged in the arc groove; an internal spring (2242) is connected between the inner end surface of the sliding member (2241) and the arc groove; extrusion blocks (2243) are evenly mounted on the sliding member (2241); the number of the extrusion blocks (2243) is two; the extrusion block (2243) located on the outside is used in conjunction with the lower end of the first vibrating member (222) for extrusion; the extrusion block (2243) located on the inside is used in conjunction with the lower end of the second vibrating member (223) for extrusion; and balls are evenly arranged on the outer end surface of the sliding member (2241).

5. The high-Cr nickel-based high-temperature alloy lost foam casting device according to claim 3, characterized in that: The lower end of the vibration frame (23) is provided with a first extrusion column, and the lower end of the vibration plate (24) is provided with a second extrusion column. The length of the first extrusion column is greater than the length of the second extrusion column. The first extrusion column is used in conjunction with the upper end of the first vibration member (222), and the second extrusion column is used in conjunction with the upper end of the second vibration member (223).

6. A high-Cr nickel-based high-temperature alloy lost foam casting device according to claim 2, characterized in that: The support trigger member (25) comprises a lifting unit and a support rod (251). The lifting unit is mounted on the side wall of the inner cavity of the base (21). The lifting unit controls the support rod (251) to move up and down. A corresponding groove is provided in the middle of the support rod (251). The lower end inclined surface of the corresponding groove is a structure that gradually slopes downward from the outside to the inside.

7. A high-Cr nickel-based high-temperature alloy lost foam casting device according to claim 6, characterized in that: The placement mechanism (3) comprises an electric slider, a movable frame (31), a support frame (32), a grid plate (33), and a contact head (34); the electric slider is installed on the side wall of the sand box (1); a U-shaped movable frame (31) is arranged between the electric sliders; a U-shaped support frame (32) is arranged inside the movable frame (31) to slide up and down; a grid plate (33) is installed inside the support frame (32); a contact head (34) is installed at the outer position of the movable frame (31); and the upper end of the support rod (251) of the initial height is clamped in a clamping groove provided at the lower edge of the grid plate (33).

8. The high-Cr nickel-based high-temperature alloy lost foam casting device according to claim 7, characterized in that: The compacting mechanism (4) comprises a guide block (41), a compacting plate (42), a linkage assembly (43), and loose parts (44); the guide block (41) is installed at the inner side wall of the sand box (1); the compacting plate (42) is slidably mounted on the guide block (41); a linkage assembly (43) is arranged in the built-in cavity of the guide block (41); the linkage assembly (43) is used to control the compacting plate (42) to move horizontally; and the upper side wall of the compacting plate (42) is evenly provided with loose parts (44) from top to bottom.

9. The high-Cr nickel-based high-temperature alloy lost foam casting device according to claim 8, characterized in that: The linkage assembly (43) comprises a gear condition (431), an elastic telescopic rod (432), an alignment head (433), a connecting frame (434), and a rack (435); the gear condition (431) is horizontally slidably arranged in the built-in cavity; an elastic telescopic rod (432) is connected between the gear condition (431) and the built-in cavity; an alignment head (433) corresponding to the position of the contact head (34) is installed at the inner end of the gear condition (431); a gear is meshed between the gear condition (431) and the rack (435); the gear is rotatably arranged in the built-in cavity; the rack (435) is installed at a side wall position of the connecting frame (434); and the outer end of the connecting frame (434) is installed on the compacting plate (42).

10. The high-Cr nickel-based high-temperature alloy lost foam casting device according to claim 8, characterized in that: The loose parts (44) include an inner core rod (441), a connecting sleeve (442), and a scattering head (443). The inner core rod (441) is installed on the compacting plate (42). The inner core rod (441) is slidably sleeved inside the connecting sleeve (442). The connecting sleeve (442) and the inner core rod (441) are elastically connected. The scattering heads (443) are symmetrically slidably arranged at the upper and lower ends of the connecting sleeve (442). The scattering heads (443) are used in cooperation with the extrusion groove provided in the inner core rod (441) by extrusion, and the inner wall of the extrusion groove is paved with a magnetic layer. The scattering heads (443) are made of iron material.

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