An inorganic mineral material compression molding device

Abstract

This application provides an inorganic mineral material die-casting molding apparatus, relating to the technical field of die-casting molding apparatus. The apparatus includes a mold base, a groove formed on the bottom surface of the mold base, a slider slidably installed within the groove, and a piezoelectric ceramic fixed inside the slider. It also includes a first gear sleeved on a support column, a guide column fixed to the bottom surface of the slider, and a second gear fixed to the output shaft of a motor. The first gear has an inclined guide groove, and the guide column is inserted into the guide groove. The second gear meshes with the first gear. A motor-driven gear transmission system is used. Through the cooperation of the inclined guide groove and the guide column, the rotational motion of the gears is converted into the radial linear motion of the slider, allowing the piezoelectric ceramic fixed inside the slider to move outward from the center of the mold base, thus uniformly dispersing the material around the mold before die-casting.

Description

Technical Field

[0001] This invention belongs to the technical field of die casting molding equipment, and particularly relates to a die casting molding equipment for inorganic mineral materials. Background Technology

[0002] Inorganic mineral material die-casting molding equipment is widely used in the blank forming and processing of special ceramics, refractory materials, and new building materials. Existing technology, for example, discloses a die-casting molding device for the production of inorganic plasticized microporous insulation boards, as shown in the utility model patent with authorization announcement number CN202322851431.6. This device includes a chassis, operating table, column, top plate, hydraulic cylinder, upper mold, lower mold, electric push rod, lifting pallet, cylinder, push plate, and unloading platform. Its working process is as follows: after the material is placed into the lower mold, the hydraulic cylinder pushes the upper mold to close with the lower mold to complete the die-casting; after forming, the electric push rod pushes the lifting pallet to eject the finished product from the lower mold, and then the cylinder pushes the push plate to push the finished product to the unloading platform for sliding out, thus achieving automatic unloading. This device effectively solves the problems of difficult manual part handling and low unloading efficiency.

[0003] However, this device, as well as most existing inorganic mineral material die-casting equipment, still suffers from the following technical problems: When powder or slurry is added to the mold, the material tends to naturally accumulate in the central area of ​​the mold, while the material filling around the mold is significantly insufficient. During the subsequent die-casting process, the die-casting head presses down vertically, and the material in the central area is subjected to greater pressure and flows outwards. However, due to the uneven initial distribution of the material and the frictional resistance between the material and the inner wall of the mold, it is difficult to maintain a consistent compaction degree between the center and the periphery. This results in a high density at the center and a low density at the edges of the die-cast blank, and in severe cases, defects such as delamination, cracks, or porosity may occur, directly affecting product quality. Therefore, how to achieve a uniform distribution of material from the center to the periphery within the mold before die-casting, thereby improving the density uniformity and overall quality of the die-cast blank, is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0004] This application aims to at least solve one of the technical problems of uneven initial material distribution in the prior art. To this end, this application proposes an apparatus for die casting inorganic mineral materials.

[0005] To achieve the above objectives, the specific technical solution of the present invention is as follows: An inorganic mineral material die casting molding device includes a mold base, a groove formed on the bottom surface of the mold base, a slider slidably installed in the groove, and a piezoelectric ceramic fixed inside the slider. It also includes a gear one sleeved on a support column, a guide column fixed on the bottom surface of the slider, and a gear two fixed on the output shaft of a motor. The gear one has an inclined guide groove, the guide column is inserted into the guide groove, and the gear two meshes with the gear one.

[0006] Preferably, it also includes a load-bearing base, a top frame fixed on the load-bearing base, a hydraulic cylinder mounted on the top frame, and a die-casting head fixed to the output end of the hydraulic cylinder, wherein the output end of the hydraulic cylinder moves vertically downward.

[0007] Preferably, it also includes a base plate fixed on the load-bearing base, and a mold disposed above the base plate, wherein the mold bottom is disposed at the lower opening of the mold, and the mold is coaxially disposed with the die-casting head.

[0008] Preferably, it further includes a support column connecting the mold bottom and the base plate, the top of the support column being fixedly connected to the center of the bottom surface of the mold bottom, and the gear being rotatably sleeved on the outer circumferential surface of the support column.

[0009] Preferably, a feeding plate is fixed to one side of the base plate, and a bracket is also fixed to the base plate. A cylinder is installed on the bracket, and the output end of the cylinder is fixedly connected to the outer peripheral surface of the mold, which is used to push the mold to move horizontally so that the formed material is separated from the bottom of the mold and falls onto the feeding plate.

[0010] Preferably, the grooves are arranged in a cross shape, and there are multiple sliders that are slidably disposed in each of the cross-shaped grooves.

[0011] Preferably, the outer peripheral surface of the mold bottom is provided with an air hole communicating with the slide groove, and also includes an air ring sleeved on the outer peripheral surface of the mold bottom, and an air pipe connecting the air ring and the air hole. A pressure cylinder is fixed on the outer peripheral surface of the air ring, and a piston is provided inside the pressure cylinder. One end of the piston is fixedly connected to the outer peripheral surface of the mold.

[0012] Preferably, there are two pressure cylinders, which are symmetrically fixed on both sides of the air ring. Each pressure cylinder contains a piston, and both pistons are fixedly connected to the outer circumferential surface of the mold.

[0013] Preferably, the top of the slider is in contact with the bottom surface of the mold base, and the shape of the top of the slider matches the shape of the bottom surface of the mold base.

[0014] Preferably, the piezoelectric ceramic is electrically connected to an external ultrasonic generator via a wire, and the motor is a stepper motor or a servo motor.

[0015] The inorganic mineral material die-casting molding apparatus of the present invention has the following advantages: 1. This inorganic mineral material die-casting molding device employs a motor-driven gear transmission system. Through the cooperation of an inclined guide groove and a guide column, the rotational motion of the gear is converted into the radial linear motion of the slider, allowing the piezoelectric ceramic fixed inside the slider to move outward from the center of the mold bottom. During the movement, the piezoelectric ceramic continuously generates ultrasonic vibrations and transmits the vibrational energy to the material inside the mold, ensuring that the material is evenly dispersed around the mold before die-casting. This fundamentally solves the problem of material accumulation in the center and insufficient filling around the edges in traditional die-casting devices, significantly improving the density uniformity and molding quality of the die-cast parts.

[0016] 2. This invention relates to an inorganic mineral material die-casting molding device. An air ring, air pipe, and pressure cylinder are installed on the outer periphery of the mold bottom, and a piston inside the pressure cylinder is fixedly connected to the outer periphery of the mold. When the mold is pushed horizontally by the cylinder for demolding, the mold drives the piston to pull outward, creating a negative pressure airflow in the groove area. This airflow cools the piezoelectric ceramics used for extended periods, preventing performance degradation or damage due to overheating. Simultaneously, it promptly blows away dust and debris generated by the reciprocating motion of the slider within the groove, effectively avoiding sliding jamming and wear problems, thus extending the equipment's service life and maintenance cycle. This design cleverly combines demolding action with cooling and cleaning functions, requiring no additional power source or control unit, resulting in a compact structure and reliable operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is an exploded structural diagram of the feeding plate and the load-bearing base of the present invention; Figure 3 This is a schematic diagram of the gear structure of the present invention; Figure 4 This is a schematic diagram of the exploded structure of the gear and the mold base of the present invention; Figure 5 This is a top view of the mold structure of the present invention; Figure 6 For the purposes of this invention Figure 5 Schematic diagram of the cross-sectional structure of the middle AA section; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle; Figure 8 This is a schematic diagram of the exploded structure of the mold and mold base of the present invention; Figure 9 This is a schematic diagram of the flap structure of the present invention.

[0019] The markings in the diagram are as follows: 1. Load-bearing base; 11. Top frame; 12. Hydraulic cylinder; 121. Die-casting head; 13. Base plate; 131. Material feeding plate; 2. Mold; 21. Mold bottom; 22. Support column; 23. Slide groove; 231. Air hole; 24. Gear one; 241. Guide groove; 25. Slider; 251. Guide column; 252. Mounting groove; 253. Piezoelectric ceramic; 26. Piston; 261. Connecting rod; 262. Push rod; 3. Bracket; 31. Cylinder; 4. Motor; 41. Gear two; 5. Air ring; 51. Air pipe; 52. Pressurizing cylinder; 6. Positioning cylinder; 61. Lifting cylinder; 62. Support rod; 63. Flip plate; 631. Counterweight block; 64. Groove. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1 to 2 As shown, the present invention provides an inorganic mineral material die-casting molding device, which mainly includes a load-bearing base 1 and a hydraulic cylinder 12 disposed above the load-bearing base 1. The hydraulic cylinder 12 and the load-bearing base 1 are supported and fixedly connected by a top frame 11, so that the output end of the hydraulic cylinder 12 can move vertically downward, thereby completing the die-casting molding operation of the material.

[0022] A die-casting head 121 is fixedly installed below the output end of the hydraulic cylinder 12. A base plate 13 is fixedly installed above the load-bearing base 1, and a mold 2 for forming is arranged above the base plate 13. The mold 2 and the die-casting head 121 are coaxially arranged to ensure uniform pressure transmission during the die-casting process. In addition, a feeding plate 131 is fixedly installed on one side of the outer surface of the base plate 13. The die-cast material can automatically slide down the feeding plate 131 for easy collection or entry into the next process.

[0023] like Figures 2 to 7 As shown, a mold base 21 is provided at the lower opening of the mold 2. The mold base 21 is supported and fixedly connected to the base plate 13 by a support column 22. Specifically, the top of the support column 22 is fixedly connected to the center of the bottom surface of the mold base 21, thereby providing stable central support for the mold base 21. A groove 23 is provided on the bottom surface of the mold base 21, and the groove 23 is distributed in a cross shape. A movable slider 25 is slidably arranged inside the groove 23. The top of the slider 25 is in contact with the bottom surface of the mold base 21, thereby ensuring that the slider 25 always fits the bottom surface of the mold base 21 during sliding, avoiding gaps or shaking.

[0024] The slider 25 has an internal mounting groove 252, in which a piezoelectric ceramic 253 is fixedly installed. When energized, the piezoelectric ceramic 253 generates high-frequency ultrasonic vibrations, which are transmitted to the mold bottom 21 through the slider 25, and then act on the material inside the mold 2, promoting uniform distribution and compaction of the material.

[0025] A gear 24 is rotatably mounted on the outer circumferential surface of the support column 22. A guide groove 241 is formed through the surface of the gear 24, and the guide groove 241 has an inclined structure (i.e., the radial direction forms a certain angle with the circumferential direction). At the same time, a guide post 251 is fixedly provided on one side of the bottom surface of the slider 25, and one end of the guide post 251 extends downward and inserts into the guide groove 241. When the gear 24 rotates, the inclined guide groove 241 forces the guide post 251 to move radially, thereby driving the slider 25 to slide within the groove 23.

[0026] A gear 41 is meshed with one side of gear 24, and a motor 4 is connected to the center of the bottom surface of gear 41. The power output shaft of motor 4 drives gear 41 to rotate, which in turn drives gear 24 to rotate as well. The working process is as follows: After the material is placed inside the mold 2, motor 4 is started, and motor 4 drives gear 41 to rotate, which in turn drives gear 24 to rotate. As gear 24 rotates, the inclined guide groove 241 on its surface pushes the guide post 251, causing slider 25 to move gradually outward from the center along the slide groove 23. Since piezoelectric ceramic 253 is installed inside slider 25, the piezoelectric ceramic 253 continuously generates ultrasonic vibration during radial movement, thereby evenly distributing the material inside the mold 2 from the center to the surrounding area, effectively improving the material bulk density and molding uniformity.

[0027] like Figure 3 As shown, a bracket 3 is fixedly installed above the base plate 13, and a cylinder 31 is mounted on the bracket 3. The power output end of the cylinder 31 is fixedly connected to the outer peripheral surface of the mold 2. After the material inside the mold 2 is die-cast, the cylinder 31 pushes the mold 2 to move horizontally toward the unloading plate 131, so that the formed product detaches from above the mold bottom 21 and falls onto the unloading plate 131, realizing automatic unloading.

[0028] like Figures 3 to 8As shown, an air hole 231 is formed on the outer circumference of the mold base 21, and the air hole 231 is connected to the slide groove 23. An air ring 5 is also fitted on the outer circumference of the mold base 21. The air ring 5 is connected to the air hole 231 through an air pipe 51, so that the gas inside the air ring 5 can enter the slide groove 23 area through the air pipe 51 and the air hole 231. A pressure cylinder 52 is fixed on both sides of the outer circumference of the air ring 5, and one end of the pressure cylinder 52 is connected to the inside of the air ring 5. A retractable piston 26 is provided inside the pressure cylinder 52, and the other end of the piston 26 is fixedly connected to the outer circumference of the mold 2. When the mold 2 moves horizontally under the drive of the cylinder 31, the mold 2 will drive the piston 26 to move together, so that the piston 26 moves inside the pressure cylinder 52.

[0029] Specifically, after the material is die-cast inside mold 2, cylinder 31 pushes mold 2 to detach it from above mold bottom 21. During the movement of mold 2, piston 26 is pulled outward, increasing the internal volume of pressure cylinder 52 and creating negative pressure. This draws gas from the slide groove 23 area through air ring 5, air pipe 51, and air hole 231. This accelerates the airflow in the slide groove 23 area, effectively cooling the piezoelectric ceramic 253 inside slider 25 and preventing it from overheating during prolonged operation. Furthermore, the airflow can clean up any dust or debris that may accumulate in the slide groove 23, significantly improving the sliding conditions of slider 25, reducing friction and jamming, and extending the equipment's service life.

[0030] like Figure 9 As shown, a positioning cylinder 6 is fixedly installed on one side of the upper part of the base plate 13. Inside the positioning cylinder 6 is a retractable lifting cylinder 61, which can move up and down along the axial direction of the positioning cylinder 6. A flap 63 is movably connected to the end of the lifting cylinder 61. The connection point of the flap 63 is not located at its center, but rather offset away from the mold 2. A support rod 62 is fixed above one side of the outer circumference of the lifting cylinder 61, and this support rod 62 is arranged close to the mold 2. A counterweight 631 is fixed to one side of the bottom surface of the flap 63. Under the gravity of the counterweight 631, the flap 63 can maintain a horizontal posture in its initial state (when not under material pressure) to catch molded products falling from the mold 2.

[0031] A slot 64 is formed through the surfaces of the lifting cylinder 61 and the positioning cylinder 6, extending axially. A connecting rod 261 is fixedly connected between the two pistons 26, and a push rod 262 is connected to the end of the connecting rod 261. One end of the push rod 262 extends below the slot 64. The push rod 262 is generally inclined, with its end near the slot 64 positioned higher.

[0032] The linkage operation process is as follows: When the material inside the mold 2 needs to be discharged, under the operation of the motor 4 and the piezoelectric ceramic 253, the material can be quickly detached from the mold 2 through vibration. Then, when the cylinder 31 pushes the mold 2 to move horizontally towards the flip plate 63, the piston 26 moves accordingly and drives the push rod 262 to move synchronously through the connecting rod 261. The push rod 262 passes under the slot 64. Because it is inclined and its high point is close to the slot 64, the lifting cylinder 61 moves downward along the positioning cylinder 6 during the movement of the push rod 262. As the lifting cylinder 61 moves downward, the flip plate 63 and the supporting rod 62 move downward synchronously. At this time, the material that has been formed inside the mold 2 detaches from the bottom opening of the mold 2 under the action of gravity and falls onto the flip plate 63. When the mold 2 continues to move and passes the balance fulcrum of the flip plate 63, the weight of the formed material will force the flip plate 63 to overcome the torque of the counterweight block 631 and tilt, so that the material automatically slides onto the discharge plate 131. After the material slides down, the load on the flip plate 63 disappears, and it returns to a horizontal position under the gravity of the counterweight block 631. At the same time, when the cylinder 31 reverses and drives the mold 2 to reset, the push rod 262 retracts, and the lifting cylinder 61 can move up again through the push rod 262 to prepare for the next material receiving.

[0033] The working principle of an inorganic mineral material die casting molding device: In the initial state, the operator puts the inorganic mineral powder or slurry to be die cast into the mold 2. At this time, the mold 2 is located above the mold bottom 21 and is coaxially aligned with the die casting head 121.

[0034] When motor 4 is started, its output shaft drives gear 21 to rotate, which in turn drives gear 24, which meshes with it, to rotate synchronously around support column 22. Gear 24 has an inclined guide groove 241 on its surface, into which guide column 251 on the bottom of slider 25 is inserted. When gear 24 rotates, the inclined guide groove 241 forces guide column 251 to move radially outward, thereby causing slider 25 to slide from the center outward along the cross-shaped groove 23 on the bottom surface of mold base 21. Simultaneously, piezoelectric ceramic 253 installed inside slider 25 is energized to generate high-frequency ultrasonic vibrations. These vibrations are transmitted through slider 25 to mold base 21 and then act on the material inside mold 2. As slider 25 moves outward from the center, the ultrasonic vibrations of piezoelectric ceramic 253 continuously and evenly distribute the material around mold 2, effectively preventing uneven material accumulation or excessively high density at the center.

[0035] After the material is laid, the hydraulic cylinder 12 is activated, and its output end drives the die-casting head 121 to move vertically downwards, entering the mold 2 to die-cast the material. Because the material has been evenly distributed through ultrasonic vibration, the stress distribution during the die-casting process is more uniform, and the molding quality is significantly improved.

[0036] After die casting is completed, hydraulic cylinder 12 drives die casting head 121 to retract. Then, cylinder 31 starts, its output pushing mold 2 horizontally toward the unloading plate 131. During the horizontal movement of mold 2, mold 2 drives piston 26, which is fixedly connected to its outer circumference, to be pulled outwards within pressure cylinder 52. The increased volume of pressure cylinder 52 creates negative pressure, drawing gas from the groove 23 area through air ring 5, air pipe 51, and air holes 231 on mold bottom 21. This creates a forced airflow within groove 23, providing air cooling for the piezoelectric ceramic 253, which operates for extended periods. Furthermore, the airflow cleans any dust or debris that may accumulate within groove 23, ensuring smooth sliding of slider 25.

[0037] When the mold 2 is pushed away from the mold bottom 21 by the cylinder 31, the piston 26 moves accordingly, and drives the push rod 262 to move synchronously through the connecting rod 261. The push rod 262 passes under the slot 64. Because it is inclined and its highest point is close to the slot 64, the lifting cylinder 61 moves downward along the positioning cylinder 6 during the movement of the push rod 262. As the lifting cylinder 61 moves downward, the flap 63 and the support rod 62 move downward synchronously. At this time, the material that has been formed inside the mold 2 detaches from the bottom opening of the mold 2 under the action of gravity and falls onto the flap 63. When the mold 2 continues to move and passes the balance fulcrum of the flap 63, the weight of the formed material will force the flap 63 to tilt against the torque of the counterweight 631, so that the material automatically slides onto the discharge plate 131.

[0038] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. An inorganic mineral material die-casting molding device, characterized in that, The device includes a mold base (21), a groove (23) on the bottom surface of the mold base (21), a slider (25) slidably installed in the groove (23), and a piezoelectric ceramic (253) fixed inside the slider (25). It also includes a gear one (24) sleeved on a support column (22), a guide column (251) fixed on the bottom surface of the slider (25), and a gear two (41) fixed on the output shaft of a motor (4). The gear one (24) has an inclined guide groove (241) and the guide column (251) is inserted into the guide groove (241). The gear two (41) meshes with the gear one (24).

2. The inorganic mineral material die-casting molding apparatus according to claim 1, characterized in that, It also includes a load-bearing base (1), a top frame (11) fixed on the load-bearing base (1), a hydraulic cylinder (12) mounted on the top frame (11), and a die-casting head (121) fixed on the output end of the hydraulic cylinder (12), the output end of the hydraulic cylinder (12) moving vertically downward.

3. The inorganic mineral material die-casting molding apparatus according to claim 2, characterized in that, It also includes a base plate (13) fixed on the load-bearing base (1) and a mold (2) set above the base plate (13), wherein the mold bottom (21) is set at the lower opening of the mold (2) and the mold (2) is coaxially set with the die-casting head (121).

4. The inorganic mineral material die-casting molding apparatus according to claim 3, characterized in that, It also includes a support column (22) connecting the mold base (21) and the base plate (13). The top of the support column (22) is fixedly connected to the center of the bottom surface of the mold base (21), and the gear (24) is rotatably sleeved on the outer circumferential surface of the support column (22).

5. The inorganic mineral material die-casting molding apparatus according to claim 3, characterized in that, A feeding plate (131) is fixed on one side of the base plate (13). A bracket (3) is also fixed on the base plate (13). A cylinder (31) is installed on the bracket (3). The output end of the cylinder (31) is fixedly connected to the outer peripheral surface of the mold (2) to push the mold (2) to move horizontally so that the formed material is removed from the bottom of the mold (21) and falls onto the feeding plate (131).

6. The inorganic mineral material die-casting molding apparatus according to claim 5, characterized in that, The grooves (23) are arranged in a cross shape, and the number of sliders (25) is multiple and they are respectively slidably arranged in each of the cross-shaped grooves (23).

7. The inorganic mineral material die-casting molding apparatus according to claim 6, characterized in that, The outer circumferential surface of the mold base (21) is provided with an air hole (231) communicating with the slide groove (23), and also includes an air ring (5) sleeved on the outer circumference of the mold base (21), and an air pipe (51) connecting the air ring (5) and the air hole (231). A pressure cylinder (52) is fixed on the outer circumferential surface of the air ring (5), and a piston (26) is provided inside the pressure cylinder (52). One end of the piston (26) is fixedly connected to the outer circumferential surface of the mold (2).

8. The inorganic mineral material die-casting molding apparatus according to claim 7, characterized in that, The number of pressure cylinders (52) is two and they are symmetrically fixed on both sides of the air ring (5). Each pressure cylinder (52) has a piston (26) inside it, and both pistons (26) are fixedly connected to the outer circumferential surface of the mold (2).

9. The inorganic mineral material die-casting molding apparatus according to claim 8, characterized in that, The top of the slider (25) is in contact with the bottom surface of the mold base (21), and the top shape of the slider (25) matches the bottom surface of the mold base (21).

10. The inorganic mineral material die-casting molding apparatus according to claim 9, characterized in that, The piezoelectric ceramic (253) is electrically connected to an external ultrasonic generator via a wire, and the motor (4) is a stepper motor or a servo motor.

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