Die-casting forming device for microcrystalline ceramic glass

Abstract

The die-casting forming device comprises a base, the upper end of the base is rotationally connected with a rotary disc, a plurality of forming dies are arranged on the upper end face of the rotary disc in an annular array mode, a support is arranged on the edge of the upper end of the base, and a storage hopper with an opening in the lower end is arranged on the support. A feeding port is formed in the upper end of the storage hopper, a spiral conveyor penetrating through an opening in the lower end of the storage hopper is rotationally connected to the middle of the upper end of the storage hopper, a driving gear is coaxially arranged on the rotary disc, a second driven gear meshed with the driving gear is coaxially arranged on the spiral conveyor, and a driving part is arranged at the lower end of the base. An incomplete gear and a driving bevel gear are arranged at the output end of the driving part, and a first driven gear matched with the incomplete gear is coaxially arranged on the rotating disc; in the die-casting forming process, the raw materials in the molten state do not need to be manually transferred to the forming die, scalding accidents can be avoided, and the safety accident rate is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of microcrystalline glass-ceramics production, and particularly to a die-casting forming device for microcrystalline glass-ceramics. Background Art

[0002] Glass-ceramics, also known as glass ceramics or microcrystalline ceramics, are a polycrystalline solid-phase material containing a vitreous body obtained by subjecting a base glass of certain specific compositions to controlled nucleation and crystallization at a certain temperature. The properties of microcrystalline ceramics are mainly determined by the main crystal phase, and the main crystal phase can be achieved by controlling nucleation, crystallization, and selecting different parent glass components. Microcrystalline ceramics combine the characteristics of glass and ceramics and are superior to metals and polymers in terms of thermal, chemical, biological, optical, and electrical properties. Utilizing the mechanical and thermal properties of microcrystalline ceramics such as high temperature resistance, thermal shock resistance, and adjustable thermal expansion, various materials that meet mechanical requirements can be manufactured. Utilizing the machinability and directional orientation of mica, glass-ceramics with high strength and machinability can be prepared. Microcrystalline ceramics can be widely used as mechanical materials in pistons, rotating blades, and cookware, and can also be used as structural materials in airplanes, rockets, and artificial satellites.

[0003] In the production process of microcrystalline ceramics, the melting method is usually adopted. In this method, various raw materials and additives are mixed evenly and melted at a high temperature of 1100°C to 1550°C. The molten raw materials are poured into a forming mold manually, and are pressed into the forming mold by a downward-moving die-casting mold for die-casting. After annealing, nucleation and crystallization are carried out at a certain temperature to obtain a glass-ceramic with fine, uniform grains and overall crystallization. Compared with the usual ceramic forming process, this method is suitable for preparing products with complex shapes and precise dimensions, and the obtained glass-ceramic products have high density, uniform composition, and no pores. However, this method has a high melting temperature, and it is extremely easy to get scalded during the manual transfer of molten raw materials, resulting in a high incidence of safety accidents. Summary of the Invention

[0004] An embodiment of the present invention provides a die-casting forming device for microcrystalline glass-ceramics, which can solve the problems in the prior art that it is extremely easy to get scalded during the manual transfer of molten raw materials and the incidence of safety accidents is high.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a die-casting molding device for microcrystalline ceramic glass, comprising a base, the upper end of the base is rotatably connected to a turntable, the upper end surface of the turntable is provided with a plurality of forming molds in a circular array, a bracket is provided at the upper end edge of the base, a storage hopper with an opening at the lower end is provided on the bracket, a feed port is provided at the upper end of the storage hopper, a screw conveyor penetrating the lower end opening is rotatably connected to the middle part of the upper end of the storage hopper, a driving gear is coaxially provided on the turntable, and the screw conveyor is coaxially provided with a gear. A second driven gear meshing with the driving gear is provided, the lower end of the base is provided with a driving part, the output end of the driving part is provided with an incomplete gear and a driving bevel gear, the turntable is coaxially provided with a first driven gear adapted to the incomplete gear, the driving bevel gear is meshed with a driven bevel gear rotatably connected to the base, the driven bevel gear is coaxially provided with a disc, the disc is eccentrically connected to a connecting rod, the upper end of the connecting rod is hinged to a mounting plate vertically slidably connected to the base, and the lower end of the mounting plate is provided with a die-casting mold adapted to the forming mold.

[0006] Preferably, a guide cylinder is provided inside the base, a sliding rod is horizontally slidably connected inside the guide cylinder, an elastic member is provided between one end of the sliding rod located at the guide cylinder and the guide cylinder, and a wedge-shaped check block is provided at one end of the sliding rod located outside the guide cylinder.

[0007] Preferably, the bracket is provided with a fixed plate located between the storage hopper and the forming mold, the fixed plate is provided with an avoidance groove, two slide grooves are relatively provided on both sides of the avoidance groove, two sliders are slidably connected in the two slide grooves, and cutters are provided on opposite sides of the two sliders.

[0008] Preferably, the fixed plate is rotatably connected to two force-guiding rods and two mutually meshing gears, two first cylindrical pins are provided on the two gears, two second cylindrical pins are provided on the two sliders, and waist-shaped holes matching the first cylindrical pins and the second cylindrical pins are provided on the two force-guiding rods. A driving pulley is provided at the output end of the driving part, and a driven pulley is coaxially provided on one of the gears, and a belt is connected for transmission between the driving pulley and the driven pulley.

[0009] Preferably, a jacket is provided on the outside of the storage hopper.

[0010] Preferably, the interior of the jacket is a vacuum structure.

[0011] Preferably, the interior of the jacket is filled with a heat-conducting medium, and a heating plate is provided inside the jacket.

[0012] Preferably, the screw conveyor is provided with a stirring rod, and the end of the stirring rod is provided with a scraper that fits the inner wall of the storage hopper.

[0013] Compared with the prior art, the present invention is provided with a base, a turntable, a forming die, a bracket, a storage hopper, a feed inlet, a screw conveyor, a driving gear, a second driven gear, a driving part, an incomplete gear, a driving bevel gear, a first driven gear, a driven bevel gear, a disc, a connecting rod, a mounting plate and a die-casting die. The raw materials in a high-temperature molten state are stored in the storage hopper. When the driving part works, it drives the incomplete gear and the driving bevel gear to rotate. When the incomplete gear rotates one week, it will drive the first driven gear to rotate intermittently once. The first driven gear drives the turntable and the driving gear to rotate intermittently once. The turntable drives the forming die to rotate intermittently once for station conversion. The driving gear drives the screw conveyor to rotate intermittently once through the second driven gear, quantitatively extruding the raw materials in the storage hopper. The extruded raw materials fall into the forming die directly below. The driving bevel gear drives the disc to rotate through the driven bevel gear. The disc drives the mounting plate and the die-casting die to lift once through the connecting rod. The die-casting die is pressed into the forming die for die-casting forming. This process does not require manual transfer of the molten raw materials to the forming die, which is beneficial to avoiding scalding accidents and reducing the incidence of safety accidents. Description of the Drawings

[0014] Figure 1 is a front view structural schematic diagram of the present invention;

[0015] Figure 2 is a front view sectional structural schematic diagram of the base of the present invention;

[0016] Figure 3 is a top view structural schematic diagram of the first driven gear of the present invention;

[0017] Figure 4 is a bottom view structural schematic diagram of the fixing plate of the present invention;

[0018] Figure 5 is a top view structural schematic diagram of the annular guide rail of the present invention;

[0019] Figure 6 is a front view sectional structural schematic diagram of the storage hopper of the present invention.

[0020] In the figure: 1, base; 2, turntable; 3, forming die; 4, support; 5, storage hopper; 6, feed inlet; 7, screw conveyor; 8, drive unit; 9, incomplete gear; 10, first driven gear; 11, driving gear; 12, second driven gear; 13, driving bevel gear; 14, driven bevel gear; 15, disc; 16, connecting rod; 17, mounting plate; 18, die-casting die; 19, guide cylinder; 20, slide bar; 21, elastic member; 22, wedge-shaped check block; 23, fixing plate; 24, relief groove; 25, chute; 26, slider; 27, cutter; 28, force guiding rod; 29, gear; 30, first cylindrical pin; 31, second cylindrical pin; 32, kidney-shaped hole; 33, driving pulley; 34, driven pulley; 35, belt; 36, jacket; 37, heating plate; 38, stirring rod; 39, scraper; 40, annular slider; 41, annular guide rail. Detailed implementation manner

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the technical solutions of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0022] As Figures 1 to 6 shown, a die-casting forming device for microcrystalline ceramic glass includes a base 1. A turntable 2 is rotatably connected to the upper end of the base 1. A plurality of forming dies 3 are arranged in an annular array on the upper end surface of the turntable 2. A support 4 is arranged at the upper end edge of the base 1. A storage hopper 5 with a lower opening is arranged on the support 4. A feed inlet 6 is arranged at the upper end of the storage hopper 5. A screw conveyor 7 passing through the lower opening of the storage hopper 5 is rotatably connected to the middle of the upper end of the storage hopper 5. A driving gear 11 is coaxially arranged on the turntable 2. A second driven gear 12 meshing with the driving gear 11 is coaxially arranged on the screw conveyor 7. A drive unit 8 is arranged at the lower end of the base 1. The drive unit 8 is a reduction motor. An incomplete gear 9 and a driving bevel gear 13 are arranged at the output end of the drive unit 8. A first driven gear 10 adapted to the incomplete gear 9 is coaxially arranged on the turntable 2. The driving bevel gear 13 meshes with a driven bevel gear 14 rotatably connected to the base 1. A disc 15 is coaxially arranged on the driven bevel gear 14. A connecting rod 16 is eccentrically rotatably connected to the disc 15. The upper end of the connecting rod 16 is hinged to a mounting plate 17 slidably connected to the base 1 vertically. A die-casting die 18 adapted to the forming die 3 is arranged at the lower end of the mounting plate 17.

[0023] The forming mold 3 , the storage hopper 5 and the die-casting mold 18 are all made of graphite. The upper end surface of the base 1 is provided with an annular guide rail 41 , and the lower surface of the turntable 2 is provided with an annular slider 40 adapted to the annular guide rail 41 .

[0024] During specific use, the raw materials in a high-temperature molten state are stored in the storage hopper 5. When the driving part 8 is working, it drives the incomplete gear 9 and the driving bevel gear 13 to rotate. The incomplete gear 9 rotates one circle to drive the first driven gear 10 to rotate intermittently once. The first driven gear 10 drives the turntable 2 and the driving gear 11 to rotate intermittently once. The turntable 2 drives the forming mold 3 to rotate intermittently once to perform station conversion. The driving gear 11 drives the screw conveyor 7 to rotate intermittently once through the second driven gear 12 to extrude the raw materials in the storage hopper 5 in a quantitative manner. The extruded raw materials fall into the forming mold 3 directly below. The driving bevel gear 13 drives the disc 15 to rotate through the driven bevel gear 14. The disc 15 drives the mounting plate 17 and the die-casting mold 18 to rise and fall once through the connecting rod 16. The die-casting mold 18 is pressed into the forming mold 3 for die-casting.

[0025] Preferably, a guide cylinder 19 is provided inside the base 1, and a slide rod 20 is horizontally slidably connected inside the guide cylinder 19. An elastic member 21 is provided between one end of the slide rod 20 located at the guide cylinder 19 and the guide cylinder 19. The elastic member 21 is a spring or a metal spring sheet, and a wedge-shaped check block 22 is provided at one end of the slide rod 20 located outside the guide cylinder 19.

[0026] Specifically, when the first driven gear 10 rotates under the driving action of the incomplete gear 9, the teeth of the first driven gear 10 will squeeze the elastic member 21 through the wedge-shaped check block 22, and cannot rotate in the opposite direction under the limiting action of the wedge-shaped check block 22, thereby avoiding the inertial rotation of the first driven gear 10, which is conducive to accurately controlling the discharge amount and allowing the raw materials to accurately fall into the corresponding forming mold 3.

[0027] Preferably, the bracket 4 is provided with a fixed plate 23 located between the storage hopper 5 and the forming mold 3, and an avoidance groove 24 is provided on the fixed plate 23. Two slide grooves 25 are relatively provided on both sides of the avoidance groove 24. Two sliders 26 are slidably connected in the two slide grooves 25, and cutters 27 are provided on the opposite sides of the two sliders 26. Two guide rods 28 and two mutually meshing gears 29 are rotatably connected to the fixed plate 23. Two first cylindrical pins 30 are provided on the two gears 29, and two second cylindrical pins 31 are provided on the two sliders 26. Waist-shaped holes 32 that are compatible with the first cylindrical pin 30 and the second cylindrical pin 31 are provided on the two guide rods 28. A driving pulley 33 is provided at the output end of the driving part 8, and a driven pulley 34 is coaxially provided on one of the gears 29. A belt 35 is connected for transmission between the driving pulley 33 and the driven pulley 34.

[0028] Specifically, when the driving part 8 works, it drives the driving pulley 33 to rotate synchronously. The driving pulley 33 drives the driven pulley 34 to rotate through the belt 35. The driven pulley 34 drives the gear 29 arranged coaxially therewith to rotate. This gear 29 drives another gear 29 to rotate synchronously. Under the guiding action of the two sliding grooves 25, the first cylindrical pins 30 on the two gears 29 drive the two guide rods 28 to swing reciprocally through the two waist-shaped holes 32. The two waist-shaped holes 32 drive the two sliders 26 to slide reciprocally through the two second cylindrical pins 31, shearing the falling raw materials to prevent the molten raw materials from sticking and not being separable, so that they cannot fall smoothly into the lower molding die 3.

[0029] Preferably, a jacket 36 is arranged outside the storage hopper 5. The inside of the jacket 36 is a vacuum structure. The vacuum structure is beneficial to improving the heat insulation and heat preservation performance of the storage hopper 5, preventing the molten raw materials from cooling down before die-casting.

[0030] Preferably, a jacket 36 is arranged outside the storage hopper 5. The inside of the jacket 36 is filled with a heat-conducting medium, which is kerosene. A heating plate 37 is arranged inside the jacket 36. A stirring rod 38 is arranged on the screw conveyor 7. A scraper 39 that fits the inner wall of the storage hopper 5 is arranged at the end of the stirring rod 38. The heating plate 37 heats the heat-conducting medium. The heated heat-conducting medium transfers the heat to the raw materials in the storage hopper 5, keeping the raw materials in a molten state continuously. Moreover, the stirring rod 38 and the scraper 39 can rotate synchronously with the screw conveyor 7, scraping the raw materials on the inner wall of the storage hopper 5 and remixing them twice, which is beneficial to the uniform transfer of heat in the raw materials.

[0031] When the present invention is in use, raw materials in a high-temperature molten state are stored in the storage hopper 5. The heating plate 37 heats the heat-conducting medium, and the heated heat-conducting medium transfers heat to the raw materials in the storage hopper 5, keeping the raw materials in a molten state continuously. When the driving part 8 works, it drives the incomplete gear 9, the driving bevel gear 13 and the driving pulley 33 to rotate. When the incomplete gear 9 rotates one week, it drives the first driven gear 10 to rotate intermittently once. The first driven gear 10 drives the turntable 2 and the driving gear 11 to rotate intermittently once. The turntable 2 drives the forming die 3 to rotate intermittently once for station conversion. The driving gear 11 drives the screw conveyor 7 to rotate intermittently once through the second driven gear 12, extruding the raw materials in the storage hopper 5 quantitatively. The driving pulley 33 drives the driven pulley 34 to rotate through the belt 35. The driven pulley 34 drives the gear 29 arranged coaxially with it to rotate. This gear 29 drives another gear 29 to rotate synchronously. Under the guiding action of the two sliding grooves 25, the first cylindrical pins 30 on the two gears 29 drive the two guide rods 28 to swing reciprocally through the two waist-shaped holes 32. The two waist-shaped holes 32 drive the two sliders 26 to slide reciprocally through the two second cylindrical pins 31, shearing the falling raw materials. The sheared and falling raw materials fall into the forming die 3 directly below. The driving bevel gear 13 drives the disc 15 to rotate through the driven bevel gear 14. The disc 15 drives the mounting plate 17 and the die-casting die 18 to lift once through the connecting rod 16. The die-casting die 18 is pressed into the forming die 3 for die-casting forming.

[0032] Compared with the prior art, through the cooperative setting of the base 1, the turntable 2, the forming die 3, the bracket 4, the storage hopper 5, the feed inlet 6, the screw conveyor 7, the driving gear 11, the second driven gear 12, the driving part 8, the incomplete gear 9, the driving bevel gear 13, the first driven gear 10, the driven bevel gear 14, the disc 15, the connecting rod 16, the mounting plate 17 and the die-casting die 18 in the present invention, raw materials in a high-temperature molten state are stored in the storage hopper 5. When the driving part 8 works, it drives the incomplete gear 9 and the driving bevel gear 13 to rotate. When the incomplete gear 9 rotates one week, it drives the first driven gear 10 to rotate intermittently once. The first driven gear 10 drives the turntable 2 and the driving gear 11 to rotate intermittently once. The turntable 2 drives the forming die 3 to rotate intermittently once for station conversion. The driving gear 11 drives the screw conveyor 7 to rotate intermittently once through the second driven gear 12, extruding the raw materials in the storage hopper 5 quantitatively. The extruded raw materials fall into the forming die 3 directly below. The driving bevel gear 13 drives the disc 15 to rotate through the driven bevel gear 14. The disc 15 drives the mounting plate 17 and the die-casting die 18 to lift once through the connecting rod 16. The die-casting die 18 is pressed into the forming die 3 for die-casting forming. In this process, there is no need for manual transfer of the molten raw materials to the forming die 3, which is beneficial to avoiding scalding accidents and reducing the incidence of safety accidents.

[0033] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A die-casting forming device for microcrystalline glass-ceramics, comprising a base (1), characterized in that: The upper end of the base (1) is rotatably connected to a turntable (2), and a plurality of forming molds (3) are provided in a circular array on the upper end surface of the turntable (2). A bracket (4) is provided at the upper edge of the base (1), and a storage hopper (5) with an opening at the lower end is provided on the bracket (4). The upper end of the storage hopper (5) is provided with a feed port (6). The middle part of the upper end of the storage hopper (5) is rotatably connected to a screw conveyor (7) that passes through the lower end opening. The turntable (2) is coaxially provided with a driving gear (11), and the screw conveyor (7) is coaxially provided with a second driven gear (12) that meshes with the driving gear (11). The lower end of the base (1) is provided with a driving portion. (8), the output end of the driving portion (8) is provided with an incomplete gear (9) and a driving bevel gear (13), the turntable (2) is coaxially provided with a first driven gear (10) adapted to the incomplete gear (9), the driving bevel gear (13) is meshed with a driven bevel gear (14) rotatably connected to the base (1), the driven bevel gear (14) is coaxially provided with a disk (15), the disk (15) is eccentrically connected to a connecting rod (16), the upper end of the connecting rod (16) is hinged to a mounting plate (17) vertically slidably connected to the base (1), and the lower end of the mounting plate (17) is provided with a die-casting mold (18) adapted to the forming mold (3).

2. The die-casting forming device for the microcrystalline glass-ceramics according to claim 1, wherein: A guide cylinder (19) is provided inside the base (1), and a slide rod (20) is horizontally slidably connected inside the guide cylinder (19). An elastic member (21) is provided between one end of the slide rod (20) located on the guide cylinder (19) and the guide cylinder (19), and a wedge-shaped check block (22) is provided at one end of the slide rod (20) located outside the guide cylinder (19).

3. The die-casting forming device for the microcrystalline glass-ceramics according to claim 1 or 2, characterized in that: The bracket (4) is provided with a fixed plate (23) located between the storage hopper (5) and the forming mold (3); the fixed plate (23) is provided with an avoidance groove (24); two chute grooves (25) are oppositely provided on both sides of the avoidance groove (24); two sliders (26) are slidably connected in the two chute grooves (25); and cutters (27) are provided on opposite sides of the two sliders (26).

4. The die-casting forming device for microcrystalline glass-ceramics according to claim 3, characterized in that: The fixed plate (23) is rotatably connected to two force-guiding rods (28) and two mutually meshing gears (29); two first cylindrical pins (30) are provided on the two gears (29); two second cylindrical pins (31) are provided on the two sliders (26); waist-shaped holes (32) adapted to the first cylindrical pins (30) and the second cylindrical pins (31) are opened on the two force-guiding rods (28); a driving pulley (33) is provided at the output end of the driving part (8); a driven pulley (34) is coaxially provided on one of the gears (29); a belt (35) is connected between the driving pulley (33) and the driven pulley (34).

5. The die-casting forming device for microcrystalline glass-ceramics according to claim 1, characterized in that: The outside of the storage hopper (5) is provided with a jacket (36).

6. The die-casting forming device for microcrystalline glass-ceramics according to claim 5, wherein: The interior of the jacket (36) is a vacuum structure.

7. The die-casting forming device for microcrystalline glass-ceramics according to claim 5, characterized in that: The interior of the jacket (36) is filled with a heat-conducting medium, and a heating plate (37) is arranged inside the jacket (36).

8. The die-casting forming device for microcrystalline glass-ceramics according to claim 1, characterized in that: A stirring rod (38) is arranged on the screw conveyor (7), and a scraper (39) that fits against the inner wall of the storage hopper (5) is arranged at the end of the stirring rod (38).

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