Lost foam mold for casting aluminum ingot

Abstract

The utility model relates to the technical field of aluminum ingot production, and provides an evanescent mode mould for casting aluminum ingots, which comprises a sand box and dry sand, the dry sand is filled in the sand box, a mould cavity is arranged in the dry sand, a sprue gate penetrating through the dry sand is arranged on the inner upper side wall of the mould cavity, and the sprue gate is communicated with the dry sand. Two heat dissipation grooves matched with the sprue gate are formed in the top end of the dry sand, a heat dissipation square box is connected to the inner side wall of each heat dissipation groove, a first through opening is formed in one side of each heat dissipation square box, a first penetrating groove matched with the first through opening is formed in the dry sand, and a second through opening matched with the first penetrating groove is formed in the outer wall of the sand box; and a ventilation pipe is arranged in the first penetrating groove, the two ends of the ventilation pipe penetrate through the first through opening and the second through opening correspondingly, a draught fan matched with the ventilation pipe is installed on the outer wall of the sand box, and a top cover is rotationally connected to the top end of the heat dissipation square box, so that dry sand is prevented from falling into the heat dissipation groove, and the heat dissipation effect of the equipment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum ingot production, in particular to a lost foam mold for casting aluminum ingots. Background Art

[0002] At present, the aluminum ingot mold is a very important part in the casting production line of aluminum ingots in electrolytic aluminum plants. Therefore, in order to meet the production and product quality requirements of cast aluminum ingots in electrolytic aluminum production, the current lost foam production line has been realized; the lost foam mold in the prior art generally includes a sand box, dry sand, a pouring port and a mold cavity. Generally, the molten metal liquid is poured from the pouring port into the mold cavity where the mold is placed to realize the production of aluminum ingots.

[0003] After searching, China disclosed a lost foam mold for casting aluminum ingots with patent publication number CN215392329U on January 4, 2022, which is roughly described as including: a sand box, the sand box is filled with dry sand, a mold cavity is provided in the dry sand, a pouring port is provided at the top of the mold cavity through the dry sand, and a heat dissipation groove is also provided in the dry sand. The two heat dissipation grooves are respectively located on both sides of the pouring port, and a cooling device is also provided in the two heat dissipation grooves. The cooling device includes: a heat sink, the heat sink is arranged on the inner wall of the heat sink close to the pouring port, and a storage port extending to the outer wall of the sand box is opened on the inner wall of the heat sink away from the pouring port, and a ventilation pipe is provided in the storage port, and a filter is provided at the end of the ventilation pipe close to the pouring port, and the end of the ventilation pipe away from the pouring port is connected to the exhaust end of the exhaust pump, and the exhaust pump is arranged on the outer wall of the sand box.

[0004] Although the above-mentioned prior art solution can accelerate the cooling speed of the aluminum ingot and improve the casting efficiency, the heat dissipation groove of the device has a heat dissipation plate on only one side, and dry sand is easy to fall into the heat dissipation groove, affecting the heat dissipation effect of the equipment. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides a lost foam mold for casting aluminum ingots to solve the problem in the background technology that only one side of the heat dissipation slot has a heat dissipation plate, and dry sand is easy to fall into the heat dissipation slot, affecting the heat dissipation effect of the equipment.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a lost foam mold for casting aluminum ingots, comprising a sand box, comprising dry sand, the dry sand is filled in the sand box, a mold cavity is provided in the dry sand, a pouring port penetrating the dry sand is provided in the inner upper side wall of the mold cavity, two heat dissipation grooves matching with the pouring port are provided at the top of the dry sand, a heat dissipation square box is connected to the inner side wall of the heat dissipation groove, a first through-groove matching with the first through-groove is provided in the dry sand, a second through-groove matching with the first through-groove is provided on the outer wall of the sand box, a ventilation pipe is provided in the first through-groove, two ends of the ventilation pipe respectively penetrate the first through-groove and the second through-groove, a fan matching with the ventilation pipe is installed on the outer wall of the sand box, and a top cover is rotatably connected to the top of the heat dissipation square box.

[0009] By adopting the above technical scheme, molten metal is injected into the mold cavity through the pouring port to perform casting, the top cover is rotated so that the top cover is away from the top of the heat dissipation box, and the fan is started to drive air into the heat dissipation slot through the ventilation pipe, thereby driving the hot air to be discharged from the heat dissipation slot through the top of the heat dissipation box, thereby achieving rapid cooling of the workpiece after the casting is completed. The heat dissipation box is used to isolate the heat dissipation slot and the drying sand to prevent the drying sand from falling into the heat dissipation slot, and the top cover is used to prevent dust and drying sand from entering the heat dissipation slot when the equipment is not in use, thereby avoiding affecting the heat dissipation effect of the equipment.

[0010] Optionally, a dust screen is provided on the inner wall of the heat dissipation box near the top.

[0011] By adopting the above technical solution, the dustproof net is used to reduce dust and dry sand from entering the heat dissipation slot when the equipment is in use, so as to avoid affecting the heat dissipation effect of the equipment.

[0012] Optionally, a card slot is provided on the outer wall of the heat dissipation box, and a first through hole is provided on the top cover. A sliding rod is slidably connected to the inside of the first through hole, and one end of the sliding rod is fixedly connected to a clamping piece that matches the card slot. A blocking plate is provided at one end of the sliding rod, and a spring is sleeved on the sliding rod. Both ends of the spring are respectively connected to the blocking plate and the top cover, and one end of the clamping piece is fixedly connected to a hand handle.

[0013] By adopting the above technical solution, when the top cover needs to be opened, the card is pulled out of the card slot, and the top cover can be rotated to open. When the top cover needs to be closed, the card is pulled and the top cover is rotated so that the top cover is close to the top of the heat dissipation box. The spring drives the blocking plate and the sliding rod to move, thereby driving the card and the card slot to engage with each other, so as to fix the top cover, thereby achieving the purpose of improving the stability of the equipment.

[0014] Optionally, a torsion spring is provided between the heat dissipation box and the top cover.

[0015] By adopting the above technical solution, the torsion spring is used to drive the top cover to rotate when the card is out of the card slot, so as to facilitate the opening of the top cover and reduce the probability of accidental closing of the top cover, thereby achieving the purpose of improving the stability of the equipment.

[0016] Optionally, a water cooling groove is provided inside the dry sand, two matching second through grooves are provided on the inner wall of the water cooling groove, two third openings matching the second through grooves are provided on the sand box, heat dissipation water pipes are evenly laid inside the water cooling groove, both ends of the heat dissipation water pipes pass through the second through grooves and the third openings, and a water pump is installed at one end of the heat dissipation water pipe.

[0017] By adopting the above technical solution, the water pump is started to drive cold water through the heat dissipation water pipe, so that the cold water absorbs the heat in the water cooling tank and takes it out of the equipment, thereby improving the heat dissipation efficiency of the equipment.

[0018] (III) Beneficial effects

[0019] In summary, the present invention includes at least one of the following beneficial technical effects:

[0020] 1. The cast aluminum ingot uses a lost foam mold, and the molten metal is injected into the mold cavity through the pouring port for casting. The top cover is rotated to make the top cover away from the top of the heat dissipation box, and the fan is started to drive the air into the heat dissipation slot through the ventilation pipe, thereby driving the hot air to be discharged from the heat dissipation slot through the top of the heat dissipation box, thereby realizing the rapid cooling of the workpiece after the casting is completed. The heat dissipation box is used to isolate the heat dissipation slot and the drying sand to prevent the drying sand from falling into the heat dissipation slot. The top cover is used to prevent dust and drying sand from entering the heat dissipation slot when the equipment is not in use, thereby avoiding affecting the heat dissipation effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a first side structural schematic diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the first cross-sectional structure of the utility model;

[0023] Figure 3 For this utility model Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0024] Figure 4 This is a schematic diagram of the second cross-sectional structure of the utility model.

[0025] In the figure: 1. sand box; 2. drying sand; 3. mold cavity; 4. pouring port; 5. heat dissipation box; 6. ventilation pipe; 7. fan; 8. top cover; 9. dust screen; 10. slot; 11. sliding rod; 12. clamp; 13. stop plate; 14. spring; 15. hand handle; 16. torsion spring; 17. water cooling tank; 18. heat dissipation water pipe; 19. water pump. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0028] Reference Figure 1-Figure 3 , a lost foam mold for casting aluminum ingots, including a sand box 1, including dry sand 2, the dry sand 2 is filled in the sand box 1, a mold cavity 3 is opened in the dry sand 2, a pouring port 4 penetrating the dry sand 2 is opened on the inner upper side wall of the mold cavity 3, two heat dissipation grooves matching with the pouring port 4 are opened on the top of the dry sand 2, a heat dissipation square box 5 is connected to the inner side wall of the heat dissipation groove, a first opening is opened on one side of the heat dissipation square box 5, a first through groove matching with the first opening is opened in the dry sand 2, a second opening matching with the first through groove is opened on the outer wall of the sand box 1, a ventilation pipe 6 is arranged in the first through groove, and both ends of the ventilation pipe 6 respectively penetrate the first opening and the second opening, and the sand box 1 A fan 7 matched with the ventilation pipe 6 is installed on the outer wall. The top of the heat dissipation box 5 is rotatably connected with a top cover 8. The molten metal is injected into the mold cavity 3 through the pouring port 4 to perform casting. The top cover 8 is rotated to make the top cover 8 away from the top of the heat dissipation box 5. The fan 7 is started to drive the air into the heat dissipation groove through the ventilation pipe 6, thereby driving the hot air to be discharged from the heat dissipation groove through the top of the heat dissipation box 5, thereby realizing the rapid cooling of the workpiece after the casting is completed. The heat dissipation box 5 is used to isolate the heat dissipation groove and the drying sand 2 to prevent the drying sand 2 from falling into the heat dissipation groove. The top cover 8 is used to prevent dust and drying sand 2 from entering the heat dissipation groove when the equipment is not in use, thereby avoiding affecting the heat dissipation effect of the equipment.

[0029] Reference Figure 2 and Figure 3 A dustproof net 9 is provided near the top of the inner wall of the heat dissipation box 5. The dustproof net 9 is used to reduce dust and dry sand 2 from entering the heat dissipation groove when the device is in use, so as to avoid affecting the heat dissipation effect of the device.

[0030] Reference Figure 2 and Figure 3The outer wall of the heat dissipation box 5 is provided with a card slot 10, and the top cover 8 is provided with a first through hole. The interior of the first through hole is slidably connected with a sliding rod 11, and one end of the sliding rod 11 is fixedly connected with a card member 12 that matches the card slot 10. One end of the sliding rod 11 is provided with a blocking plate 13, and a spring 14 is sleeved on the sliding rod 11. The two ends of the spring 14 are respectively connected to the blocking plate 13 and the top cover 8, and one end of the card member 12 is fixedly connected with a hand handle 15. When the top cover 8 needs to be opened, the card member 12 is pulled out of the card slot 10, and the top cover 8 can be rotated to open it. When the top cover 8 needs to be closed, the card member 12 is pulled and the top cover 8 is rotated so that the top cover 8 is close to the top of the heat dissipation box 5. The spring 14 drives the blocking plate 13 and the sliding rod 11 to move, thereby driving the card member 12 and the card slot 10 to be engaged, so as to fix the top cover 8, thereby achieving the purpose of improving the stability of the equipment.

[0031] Reference Figure 2 and Figure 3 A torsion spring 16 is provided between the heat dissipation box 5 and the top cover 8. The torsion spring 16 is used to drive the top cover 8 to rotate when the card 12 is out of the card slot 10, so as to facilitate the opening of the top cover 8 and reduce the probability of accidental closing of the top cover 8, so as to achieve the purpose of improving the stability of the equipment.

[0032] Reference Figure 1-Figure 4 A water cooling groove 17 is provided inside the dry sand 2, and two second through grooves matching each other are provided on the inner side wall of the water cooling groove 17. Two third through openings matching the second through grooves are provided on the sand box 1. Heat dissipation water pipes 18 are evenly laid inside the water cooling groove 17, and both ends of the heat dissipation water pipes 18 penetrate the second through grooves and the third through openings. A water pump 19 is installed at one end of the heat dissipation water pipe 18. When the water pump 19 is started, cold water is driven to pass through the heat dissipation water pipe 18, so that the cold water absorbs the heat in the water cooling groove 17 and takes it out of the equipment, thereby improving the heat dissipation efficiency of the equipment.

[0033] In summary, the working principle and working process of the lost foam mold for casting aluminum ingots are as follows: when in use, first, the molten metal is injected into the mold cavity 3 through the pouring port 4 to perform casting, the top cover 8 is rotated so that the top cover 8 is away from the top of the heat dissipation box 5, and the fan 7 is started to drive the air into the heat dissipation slot through the ventilation pipe 6, thereby driving the hot air to be discharged from the heat dissipation slot through the top of the heat dissipation box 5, thereby achieving rapid cooling of the workpiece after the casting is completed. The heat dissipation box 5 is used to isolate the heat dissipation slot and the drying sand 2 to prevent the drying sand 2 from falling into the heat dissipation slot. The top cover 8 is used to prevent dust and drying sand 2 from entering the heat dissipation slot when the equipment is not in use, thereby avoiding affecting the heat dissipation effect of the equipment. The dustproof net 9 is used to reduce dust and drying sand 2 from entering the heat dissipation slot when the equipment is in use, thereby avoiding affecting the heat dissipation effect of the equipment. When the top cover 8 needs to be opened, the card 12 is pulled out of the card slot 10, and the top cover 8 can be rotated to open. When the top cover 8 needs to be closed, the card 12 is pulled and the top cover 8 is rotated so that the top cover 8 is close to the top of the heat dissipation box 5. The spring 14 drives the blocking plate 13 and the sliding rod 11 to move, thereby driving the card 12 and the card slot 10 to engage with each other, so as to fix the top cover 8, thereby achieving the purpose of improving the stability of the equipment. The torsion spring 16 is used to drive the top cover 8 to rotate when the card 12 is out of the card slot 10, so as to facilitate the opening of the top cover 8 and reduce the probability of accidental closure of the top cover 8, so as to achieve the purpose of improving the stability of the equipment. The water pump 19 is started to drive cold water to pass through the heat dissipation water pipe 18, so that the cold water absorbs the heat in the water cooling tank 17 and takes it out of the equipment, thereby improving the heat dissipation efficiency of the equipment.

[0034] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A lost foam mold for casting aluminum ingots, comprising a sand box (1), characterized in that: The invention comprises dry sand (2), which is filled in a sand box (1), a mold cavity (3) is provided in the dry sand (2), a pouring port (4) penetrating the dry sand (2) is provided on the inner upper side wall of the mold cavity (3), two heat dissipation grooves matching with the pouring port (4) are provided on the top of the dry sand (2), a heat dissipation box (5) is connected to the inner side wall of the heat dissipation groove, a first opening is provided on one side of the heat dissipation box (5), a first through-groove matching with the first opening is provided in the dry sand (2), a second opening matching with the first through-groove is provided on the outer wall of the sand box (1), a ventilation pipe (6) is provided in the first through-groove, two ends of the ventilation pipe (6) respectively penetrate the first opening and the second opening, a fan (7) matching with the ventilation pipe (6) is installed on the outer wall of the sand box (1), and a top cover (8) is rotatably connected to the top of the heat dissipation box (5).

2. The lost foam mold for casting aluminum ingots according to claim 1, characterized in that: A dustproof net (9) is provided on the inner side wall of the heat dissipation box (5) near the top.

3. The lost foam mold for casting aluminum ingots according to claim 1, characterized in that: A card slot (10) is provided on the outer wall of the heat dissipation box (5), a first through hole is provided on the top cover (8), a sliding rod (11) is slidably connected inside the first through hole, one end of the sliding rod (11) is fixedly connected to a clamping member (12) matched with the card slot (10), a blocking plate (13) is provided at one end of the sliding rod (11), a spring (14) is sleeved on the sliding rod (11), and two ends of the spring (14) are respectively connected to the blocking plate (13) and the top cover (8).

4. The lost foam mold for casting aluminum ingots according to claim 3, characterized in that: One end of the clamp (12) is fixedly connected to a hand-held handle (15).

5. The lost foam mold for casting aluminum ingots according to claim 1, characterized in that: A torsion spring (16) is provided between the heat dissipation box (5) and the top cover (8).

6. The lost foam mold for casting aluminum ingots according to claim 1, characterized in that: The dry sand (2) is provided with a water cooling groove (17) inside, and two second through grooves matching each other are provided on the inner side wall of the water cooling groove (17). The sand box (1) is provided with two third openings matching each other with the second through grooves. Heat dissipation water pipes (18) are evenly laid inside the water cooling groove (17), and both ends of the heat dissipation water pipes (18) pass through the second through grooves and the third openings. A water pump (19) is installed at one end of the heat dissipation water pipe (18).

Images