Uniform forming and pressing device for zinc oxide target material

Abstract

The uniform forming and pressing device comprises a forming table, a support, a pretreatment hot pressing mechanism and a mixing and paving mechanism, the support is fixedly arranged in the middle of the forming table, electric telescopic rods are symmetrically and fixedly arranged on the support, a lifting frame is fixedly arranged at the telescopic ends of the electric telescopic rods, and a heating bin is fixedly arranged in the middle of the bottom of the lifting frame; electric heating pipes are fixedly arranged in the heating bin, a hot pressing plate is fixedly arranged at the bottom of the heating bin, a stable guide mechanism is arranged on the lifting frame, and a mixed paving mechanism is arranged on one side of the bottom of the lifting frame. By integrating the functions of mixing and paving, hot-pressing pretreatment and cold-pressing forming, the pressing efficiency and quality of the zinc oxide target material are remarkably improved, after the hot-pressing plate carries out preliminary pressurization on the raw materials and activates the surface activity of particles, the cold-pressing plate carries out pressing forming and micropore elimination, cold pressing and hot pressing are combined in an auxiliary mode, and the pressing efficiency and quality of the zinc oxide target material are improved. The pressed zinc oxide target material is more compact, and the guide rod and the sliding sleeve ensure that the lifting frame vertically moves without deviation.

Description

Technical Field

[0001] The present invention relates to the technical field of target material preparation, in particular to a uniform forming and pressing device for zinc oxide target material. Background Art

[0002] Zinc oxide target is a solid material with high-purity zinc oxide as the main component. It has a hexagonal wurtzite crystal structure, wide bandgap semiconductor properties, high light transmittance and excellent chemical stability. The resistivity can be reduced by doping, which is comparable to indium tin oxide but at a lower cost. It is made into sheet or block structures through a specific process and is mainly used in thin film preparation technologies such as physical vapor deposition and magnetron sputtering. Zinc oxide target is a key medium connecting materials science and industrial applications. Its core value lies in promoting the innovation of semiconductors, new energy and optical technologies through high-performance thin films. It is mainly used in semiconductor devices, transparent conductive films, UV protective coatings, piezoelectric sensors and photocatalytic materials, especially in the electronic information industry and new energy fields. The demand is significant. The preparation process is mainly based on powder metallurgy, sol-gel method and chemical vapor deposition method. The sintering temperature and grain size need to be strictly controlled to ensure performance.

[0003] The utility model application number 202021406142.5 discloses a target material pressing hydraulic press. By arranging a round target mold cart and a square target mold cart in the device, targets of different specifications can be pressed, thereby improving the versatility of the hydraulic press. In addition, by arranging two mold carts, one mold cart can demould and feed the other mold cart during pressing, thereby realizing continuous production of target materials and improving work efficiency. By arranging a demoulding oil cylinder, after the pressing is completed, the demoulding oil cylinder can be used to eject the entire inner mold, separate the inner mold from the mold cart base, and then remove the pressed target material from the inner mold, thus completing the demoulding. The demoulding oil cylinder makes it easy to remove the inner mold, the product is not easily damaged, and the labor intensity is reduced.

[0004] However, the above-mentioned target material pressing hydraulic press mainly relies on the cylinder pump to push the extrusion device down for pressing, and lacks pretreatment of the zinc oxide target before pressing. After the target material raw material is placed in the inner mold in the above-mentioned target material pressing hydraulic press, it still needs to be manually flattened to facilitate subsequent pressing, which makes the pressing efficiency low. The above-mentioned target material pressing hydraulic press can only perform cold pressing treatment, and cannot combine cold pressing with hot pressing assistance, which easily leads to the pressed zinc oxide target material being not dense enough. Therefore, the present invention proposes a uniform forming and pressing device for zinc oxide target to solve the problems existing in the prior art. Summary of the Invention

[0005] In response to the above problems, the purpose of the present invention is to propose a uniform forming and pressing device for zinc oxide target materials. The uniform forming and pressing device for zinc oxide target materials significantly improves the pressing efficiency and quality of zinc oxide target materials by integrating mixing and flattening, hot pressing pretreatment and cold pressing forming functions. After the hot pressing plate initially pressurizes the raw materials and activates the surface activity of the particles, the cold pressing plate then performs pressing and forming to eliminate micropores. The cold pressing and hot pressing assistance are combined to make the pressed zinc oxide target materials denser. The guide rod and the sliding sleeve ensure that the vertical movement of the lifting frame is without offset.

[0006] To achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: a uniform forming and pressing device for zinc oxide target material, comprising a forming table, a bracket, a pretreatment hot pressing mechanism and a mixing and flattening mechanism, a bracket is fixed in the middle of the forming table, the pretreatment hot pressing mechanism comprises an electric telescopic rod, a lifting frame, a heating chamber, an electric heating pipe, a hot pressing plate and a guiding and stabilizing mechanism, the electric telescopic rods are symmetrically fixed on the bracket, the lifting frame is fixed on the telescopic end of the electric telescopic rod, a heating chamber is fixed in the middle of the bottom of the lifting frame, electric heating pipes are arranged and fixed in the heating chamber, a hot pressing plate is fixed at the bottom of the heating chamber, a stabilizing guiding mechanism is provided on the lifting frame, and a mixing and flattening mechanism is provided on one side of the bottom of the lifting frame.

[0007] A further improvement is that the bottom of the heating chamber is connected to the top of the hot pressing plate for heat conduction, and the electric heating tubes are arranged in multiple groups.

[0008] Further improvements are: the stable guide mechanism includes a guide rod, a sliding sleeve, a limit sleeve and a pressure sensor, the guide rod is symmetrically fixed on the inner side of the bottom of the bracket, the sliding sleeve is symmetrically fixed on the front and back of the lifting frame, the sliding sleeve slides along the guide rod, the limit sleeve is horizontally arranged and fixed on the bottom of the lifting frame, and the pressure sensor is fixed on the bottom of the limit sleeve.

[0009] A further improvement is that: the middle group of limiting sleeves is located outside the heating chamber, the inner side of the bottom of the limiting sleeve is surrounded by chamfers, and the middle of the front side of the limiting sleeve is open.

[0010] Further improvements are: the mixing and leveling mechanism includes a turntable, a motor and a stirring needle, a turntable is rotatably provided at the lower side of the lifting frame, a motor is fixedly provided at the upper side of the lifting frame, the output end of the motor is drive-connected to the turntable, stirring needles are fixed around the bottom of the turntable, and multiple groups of stirring needles are fixed around.

[0011] A further improvement is that a cold pressing plate is fixedly provided on the other side of the bottom of the lifting frame, and the cold pressing plate is located in the limiting sleeve on the other side of the bottom of the lifting frame.

[0012] A further improvement is that: slide rails are fixed symmetrically on the front and back of the forming table, a sliding table is slidably provided above the slide rails, and mold grooves are symmetrically opened on the sliding table, and an inner mold is slidably inserted into the mold groove.

[0013] A further improvement is that a handle is fixedly provided on the front side of the inner mold, and limit baffles are symmetrically fixedly provided on both sides of the forming table.

[0014] The beneficial effects of the present invention are as follows: the present invention significantly improves the pressing efficiency and quality of zinc oxide target materials by integrating mixed paving, hot pressing pretreatment and cold pressing forming functions. After the hot pressing plate preliminarily pressurizes the raw materials and activates the surface activity of the particles, the cold pressing plate then performs pressing and forming to eliminate micropores. The cold pressing and hot pressing assistance are combined to make the pressed zinc oxide target material denser. The guide rod and the sliding sleeve ensure that the vertical movement of the lifting frame is without offset. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall front sectional view of the present invention;

[0016] Figure 2 A top view of the inner mold of the present invention;

[0017] Figure 3 It is an enlarged schematic diagram of point A of the present invention.

[0018] Among them: 1. Forming table; 2. Bracket; 3. Electric telescopic rod; 4. Lifting frame; 5. Heating chamber; 6. Electric heating tube; 7. Hot pressing plate; 8. Guide rod; 9. Sliding sleeve; 10. Limit sleeve; 11. Pressure sensor; 12. Turntable; 13. Motor; 14. Stirring needle; 15. Cold pressing plate; 16. Slide rail; 17. Sliding table; 18. Mold slot; 19. Inner mold; 20. Handle; 21. Limit baffle. DETAILED DESCRIPTION

[0019] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the examples. The examples are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0020] China's zinc oxide target industry is booming, with a wide range of applications ensuring a vibrant market outlook. Target types are also diversifying according to the demands of different application areas. The following details target types in different application areas and, based on public market data and industry trends, forecasts future development trends. The electronics industry is one of the primary consumers of zinc oxide targets, placing particularly stringent demands on high purity. High-purity zinc oxide targets are primarily used in thin film fabrication, optoelectronic components, and semiconductor material manufacturing. With the continuous advancement of electronic technology, the popularity of consumer electronics such as smartphones, tablets, and laptops is driving a continued increase in demand for integrated circuit chips, and advanced manufacturing processes are increasingly reliant on high-purity zinc oxide targets. Applications in the pharmaceutical field are primarily focused on medical devices and drug delivery systems. In recent years, zinc oxide materials have garnered widespread attention due to their biocompatibility and excellent antibacterial properties. Research has shown that zinc oxide nanoparticles exhibit antibacterial properties and can be used to prepare antibacterial wound dressings and disinfectant products. Furthermore, zinc oxide targets can be used in the manufacture of medical devices, such as bone repair materials and dentures. Demand for zinc oxide targets in the chemical industry is primarily focused on catalysts, pigments, and preservatives. Zinc oxide, a highly efficient catalyst, can be used in the production of a variety of organic compounds, such as ethanol and acetone. It is also widely used in materials such as pigments, cosmetics, and plastics to enhance color vividness, wear resistance, and light stability. In addition to these key applications, zinc oxide targets are also used in specialized fields such as energy and environmental protection, and nanomaterials. With technological advancements and the continuous development of new materials, the demand for zinc oxide targets will become more diverse, giving rise to a trend toward customized zinc oxide targets.

[0021] Based on this, according to Figure 1 、 Figure 2 、 Figure 3 As shown, this embodiment provides a uniform forming and pressing device for zinc oxide target material, including a forming table 1, a bracket 2, a pretreatment hot pressing mechanism and a mixing and flattening mechanism. The bracket 2 is fixed in the middle of the forming table 1. The pretreatment hot pressing mechanism includes an electric telescopic rod 3, a lifting frame 4, a heating chamber 5, an electric heating pipe 6, a hot pressing plate 7 and a guide stabilization mechanism. The electric telescopic rod 3 is symmetrically fixed on the bracket 2. The lifting frame 4 is fixed at the telescopic end of the electric telescopic rod 3. A heating chamber 5 is fixed in the middle of the bottom of the lifting frame 4. The heating chamber 5 is arranged and fixed. Electric heating tube 6, a hot pressing plate 7 is fixed at the bottom of the heating chamber 5, and the bottom of the heating chamber 5 is connected to the top of the hot pressing plate 7 for heat conduction. The electric heating tube 6 is arranged in multiple groups. When forming and pressing are performed, the electric heating tube 6 starts to heat the hot pressing plate 7, and the electric telescopic rod 3 is extended to drive the lifting frame 4 and the hot pressing plate 7 to descend to perform preliminary hot pressing pretreatment on the target material in the inner mold 19, effectively improving the density of the target material, thereby improving the bending strength of the target material and extending the service life of the target material. A stabilizing guide mechanism is provided on the lifting frame 4, and a mixing and leveling mechanism is provided on one side of the bottom of the lifting frame 4.

[0022] The stable guide mechanism includes a guide rod 8, a sliding sleeve 9, a limit sleeve 10 and a pressure sensor 11. The guide rod 8 is symmetrically fixed on the inner side of the bottom of the bracket 2, and the sliding sleeve 9 is symmetrically fixed on the front and back of the lifting frame 4. The sliding sleeve 9 slides along the guide rod 8. The limit sleeve 10 is fixedly arranged horizontally on the bottom of the lifting frame 4, and a pressure sensor 11 is fixed on the bottom of the limit sleeve 10. The middle group of limit sleeves 10 is located on the outside of the heating chamber 5. The inner side of the bottom of the limit sleeve 10 is surrounded by chamfers, and the middle front side of the limit sleeve is opened. When the lifting frame 4 moves up and down, it drives the sliding sleeve 9 to slide up and down along the guide rod 8, which plays a role in limiting the sliding sleeve 9. After the lifting frame 4 descends to the specified position, the pressure sensor 11 probe contacts the surface of the sliding table 17 to facilitate the precise downward pressing of the hot pressing plate 7 and the cold pressing plate 15. At the same time, the limit sleeve 10 facilitates the hot pressing plate 7 and the cold pressing plate 15 to quickly and accurately dock with the inner mold 19.

[0023] The mixing and leveling mechanism includes a turntable 12, a motor 13 and a stirring needle 14. A turntable 12 is rotatably provided at the bottom of the lifting frame 4, and a motor 13 is fixed at the top of the lifting frame 4. The output end of the motor 13 is drive-connected to the turntable 12. A stirring needle 14 is fixed around the bottom of the turntable 12, and multiple groups of stirring needles 14 are fixed around it. Before pressing, the target raw material is poured into the inner mold 19 and the sliding table 17 is pushed to slide horizontally along the slide rail 16 to the bottom of the turntable 12. After alignment with the bottom of the lifting frame 4, the motor 13 drives the turntable 12 to rotate, driving the stirring needle 14 to rotate so that the raw material is automatically leveled in the inner mold 19 for subsequent uniform molding and pressing, which solves the problem of manual preliminary leveling of the raw material after it is placed in the inner mold 19 for subsequent pressing, thereby effectively improving the pressing efficiency.

[0024] A cold pressing plate 15 is fixedly provided on the other side of the bottom of the lifting frame 4. The cold pressing plate 15 is located in the limiting sleeve 10 on the other side of the bottom of the lifting frame 4. After being rotated and flattened, the sliding table 17 is pushed to move the inner mold 19 to the bottom of the hot pressing plate 7 and the cold pressing plate 15 respectively for hot pressing pretreatment and cold pressing forming, thereby realizing the combination of cold pressing and hot pressing assistance, and solving the problem that the pressed zinc oxide target material is not dense enough.

[0025] Slide rails 16 are fixed symmetrically on the front and back of the forming table 1, and a sliding table 17 is slidably provided above the slide rails 16. The sliding table 17 is symmetrically provided with mold grooves 18, and an inner mold 19 is slidably inserted into the mold groove 18 for easy pushing.

[0026] A handle 20 is fixed on the front side of the inner mold 19, and limit baffles 21 are symmetrically fixed on both sides of the forming table 1. The handle 20 can be used to quickly pull the inner mold 19 out of the mold groove 18 for replacement, so as to realize the pressing of zinc oxide targets of different shapes.

[0027] When the uniform forming and pressing device for zinc oxide targets is in operation, the zinc oxide raw material is first poured into the inner mold, and the sliding table is pushed along the slide rail to the bottom of the turntable of the mixing and leveling mechanism. The motor is started to drive the turntable to rotate, and the stirring needle automatically stirs and levels the raw material in the mold. The sliding table is then pushed to the bottom of the hot pressing plate in sequence, and the lifting frame is driven down by the electric telescopic rod. The guide rod and sliding sleeve are used to accurately position the hot pressing plate, and the electric heating tube in the heating chamber preheats the hot pressing plate for preliminary hot pressing. After completion, the sliding table moves to the bottom of the cold pressing plate, and the lifting frame descends again to allow the cold pressing plate to perform pressing and forming. During the process, a pressure sensor monitors the pressure in real time, and a limit sleeve ensures precise alignment. After forming, the mold is replaced by the handle of the inner mold, realizing continuous pressing of targets of different shapes. The entire process integrates automatic material laying, hot pressing pretreatment, and cold pressing, solving the problems of insufficient target density and low efficiency of manual material laying.

[0028] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A uniform forming and pressing device for zinc oxide target material, characterized in that: The invention comprises a forming table (1), a bracket (2), a pre-treatment hot pressing mechanism and a mixing and flattening mechanism. The bracket (2) is fixedly provided in the middle of the forming table (1). The pre-treatment hot pressing mechanism comprises an electric telescopic rod (3), a lifting frame (4), a heating chamber (5), an electric heating pipe (6), a hot pressing plate (7) and a guide and stabilizing mechanism. The electric telescopic rod (3) is symmetrically fixedly provided on the bracket (2). The lifting frame (4) is fixedly provided at the telescopic end of the electric telescopic rod (3). A heating chamber (5) is fixedly provided in the middle of the bottom of the lifting frame (4). The electric heating pipe (6) is arranged and fixedly provided in the heating chamber (5). A hot pressing plate (7) is fixedly provided at the bottom of the heating chamber (5). A stabilizing guide mechanism is provided on the lifting frame (4). A mixing and flattening mechanism is provided on one side of the bottom of the lifting frame (4).

2. The uniform forming and pressing device for zinc oxide target according to claim 1, characterized in that: The bottom of the heating chamber (5) is connected to the top of the hot pressing plate (7) for heat conduction, and the electric heating tubes (6) are arranged in multiple groups.

3. The uniform forming and pressing device for zinc oxide target according to claim 1, characterized in that: The stable guide mechanism comprises a guide rod (8), a sliding sleeve (9), a limiting sleeve (10) and a pressure sensor (11); the guide rod (8) is symmetrically fixed on the inner side of the bottom of the bracket (2); the sliding sleeve (9) is symmetrically fixed on the front and rear sides of the lifting frame (4); the sliding sleeve (9) slides along the guide rod (8); the limiting sleeve (10) is transversely arranged and fixed on the bottom of the lifting frame (4); and the pressure sensor (11) is fixed on the bottom of the limiting sleeve (10).

4. The uniform forming and pressing device for zinc oxide target according to claim 3, characterized in that: The middle group of limiting sleeves (10) is located outside the heating chamber (5), the inner side of the bottom of the limiting sleeve (10) is surrounded by a chamfer, and the middle of the front side of the limiting sleeve (10) is open.

5. The uniform forming and pressing device for zinc oxide target according to claim 1, characterized in that: The mixing and paving mechanism comprises a turntable (12), a motor (13) and a stirring needle (14); a turntable (12) is rotatably provided below one side of the lifting frame (4); a motor (13) is fixedly provided above one side of the lifting frame (4); an output end of the motor (13) is drivingly connected to the turntable (12); stirring needles (14) are fixedly provided around the bottom of the turntable (12); and a plurality of groups of stirring needles (14) are fixedly provided around the bottom of the turntable (12).

6. The uniform forming and pressing device for zinc oxide target according to claim 2, characterized in that: A cold pressing plate (15) is fixedly provided on the other side of the bottom of the lifting frame (4), and the cold pressing plate (15) is located in the limiting sleeve (10) on the other side of the bottom of the lifting frame (4).

7. The uniform forming and pressing device for zinc oxide target according to claim 1, characterized in that: Slide rails (16) are fixedly provided on the molding table (1) in a symmetrical manner in front and back, a slide table (17) is slidably provided above the slide rails (16), and mold grooves (18) are symmetrically provided on the slide table (17), and an inner mold (19) is slidably inserted into the mold groove (18).

8. The uniform forming and pressing device for zinc oxide target according to claim 7, characterized in that: A handle (20) is fixedly provided on the front side of the inner mold (19), and limit baffles (21) are symmetrically fixedly provided on both sides of the forming table (1).

Images