Apparatus and Method for Preparing Diamond-Copper Composite Materials

Abstract

This invention discloses a diamond-copper composite material preparation apparatus and method, including a base plate and an infeeding mechanism for quantitatively feeding the mixed powder into a molding die. The infeeding mechanism is equipped with a mixing mechanism for quantitatively mixing diamond powder and copper powder. The base plate is equipped with a molding mechanism for pressurizing and sintering the mixed diamond powder and copper powder. The mixing mechanism of this invention uses dual motors to drive the inner rotating shaft and the inner mixing shaft to rotate in opposite directions, driving the mixing blades and the inner mixing blades to form efficient and powerful three-dimensional shearing and convection stirring. The mixing mechanism is equipped with a stepless speed regulation module based on conical wheels and conical belts, which can simultaneously change the effective transmission diameter of the active and driven conical wheels, thereby accurately and linearly adjusting the pushing reciprocating frequency of the two feeding channels, realizing independent and continuous proportional adjustment of the diamond powder and copper powder feeding amounts, and improving the process flexibility and versatility of the equipment.

Description

Technical Field

[0001] This invention relates to the field of metal powder processing technology, and in particular to an apparatus and method for preparing diamond-copper composite materials. Background Technology

[0002] Diamond-copper composites, combining the high thermal conductivity of diamond with the excellent electrical conductivity and ductility of copper, exhibit extremely high thermal conductivity and an adjustable coefficient of thermal expansion, making them ideal materials for next-generation high-performance electronic packaging and heat dissipation devices. Their performance advantages give them broad application prospects in aerospace, high-power electronic devices, lasers, and other fields.

[0003] Currently, the preparation of high-performance diamond-copper composite materials typically involves powder metallurgy, with core steps including: uniform mixing of diamond and copper powder, quantitative loading of the mixed powder, and pressure sintering under a protective atmosphere or vacuum. However, existing production equipment and processes still face numerous technical bottlenecks in this process, hindering the consistency of material properties and the improvement of production efficiency.

[0004] Specific problems manifest in the following aspects: Difficulty in controlling raw material ratios and mixing uniformity; significant differences in density, particle size, and morphology between diamond and copper powder make it difficult to achieve uniform dispersion of the two at the microscale using traditional mixing methods. Uneven mixing leads to component segregation and discontinuous thermal conductivity pathways within the composite material, severely affecting key properties such as the thermal conductivity of the final product. Furthermore, existing equipment lacks the ability to conveniently and accurately adjust the feeding ratio of the two powders during continuous production, making it difficult to adapt to the flexible production needs of different formulations. Low quantitative feeding and automation levels; the transfer of mixed powder to the molding die relies heavily on manual labor or manual addition after weighing, resulting in low efficiency and difficulty in ensuring precise consistency in the filling amount each time, leading to fluctuations in the filling amount. This directly affects the dimensional accuracy and density uniformity of the sintered product. The transfer and positioning of the molds in the entire process are mostly done manually, resulting in insufficient automation. This not only increases labor costs but also introduces operational instability. Traditional hot pressing or hot isostatic pressing equipment often treats mixing, loading, and sintering as separate processes, requiring multiple transfers of materials and molds. This increases the risk of contamination and extends the process cycle. In particular, when vacuuming and holding pressure heating the molding cavity, the insertion and removal of the molds and the sealing of the cavity lack efficient and reliable automated linkage mechanisms, resulting in long single cycle times and low overall equipment production efficiency. In addition, the recycling and reuse of molding molds usually require manual intervention, making it impossible to achieve closed-loop continuous operation of the production line. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention discloses a diamond-copper composite material preparation device and method integrating automatic quantitative mixing, precise quantitative feeding, efficient automated conveying, and integrated vacuum hot pressing molding. The technical solution adopted by this invention is as follows: the diamond-copper composite material preparation device includes a base plate and an infeeding mechanism for quantitatively infeeding the mixed powder into a molding die. The infeeding mechanism is equipped with a mixing mechanism for quantitatively mixing diamond powder and copper powder. The base plate is equipped with a molding mechanism for pressurizing and sintering the mixed diamond powder and copper powder. The placement mechanism includes a fixed base fixedly installed on the base plate, a lifting platform slidably installed inside the fixed base, a fixed sleeve fixedly installed on the lifting platform, a drop hole provided below the end of the fixed sleeve, a conveyor frame fixedly installed on the base plate, a blocking block fixedly installed on the conveyor frame, and two conveying modules with opposite conveying directions provided on the conveyor frame.

[0006] Furthermore, the placement mechanism also includes a lifting cylinder fixedly installed on a fixed base. The output end of the lifting cylinder is fixedly installed on a lifting platform. A pushing motor is fixedly installed on the lifting platform. An eccentric wheel is rotatably installed on the lifting platform. A pushing wheel is fixedly installed on the eccentric wheel. The pushing motor drives the pushing wheel to rotate through a pushing belt. An eccentric column is eccentrically fixedly installed on the eccentric wheel. A pushing rod is rotatably installed on the eccentric column. The placement mechanism also includes a pushing block slidably installed in a fixed sleeve. A placement frame is provided on the pushing block. A dropping hopper is fixedly installed below the end of the fixed sleeve. The pushing block and the pushing rod are rotatably installed.

[0007] Furthermore, the placement mechanism also includes a transfer frame fixedly installed on the conveyor frame, a transfer motor fixedly installed on the transfer frame, a transfer guide post fixedly installed on the transfer frame, a transfer screw rotatably installed on the transfer frame, the transfer screw being fixedly installed with the motor shaft of the transfer motor, a transfer block being slidably installed on the transfer guide post, the transfer block and the transfer screw forming a threaded transmission, and a transfer suction cup being provided at the bottom of the transfer block.

[0008] Furthermore, the conveying module includes a conveying motor fixedly mounted on the base plate, a motor wheel fixedly mounted on the motor shaft of the conveying motor, an input wheel and multiple driven rollers rotatably mounted inside the conveying frame, a conveying belt wound around the input wheel and multiple driven rollers, an input belt wound around the motor wheel and the input wheel, and a forming mold placed on the conveying belt.

[0009] The pusher motor drives the pusher wheel and eccentric wheel to rotate via the pusher belt. The eccentric wheel drives the eccentric column to move eccentrically. The eccentric column drives the pusher block to slide back and forth in the fixed sleeve via the pusher rod. The conveyor motor drives the motor wheel to rotate. The motor wheel drives the input wheel to rotate via the input belt. The input wheel drives the conveyor belt to move. The two conveyor belts move in opposite directions. The conveyor belt located below the hopper moves the forming mold towards the forming mechanism, while the conveyor belt located on the outside moves the forming mold away from the forming mechanism.

[0010] After mixing, the diamond and copper powders fall into the drop hopper and onto the pusher block. When the placement frame reaches below the drop hopper, the mixed diamond and copper powders fall into the placement frame and fill it, achieving a quantitative distribution. Subsequently, as the pusher block moves away from below the drop hopper with the placement frame, it blocks the powder in the drop hopper to prevent it from falling out. When the placement frame reaches above the drop hole, the diamond and copper powders in the placement frame enter the drop hopper and then fall into the forming mold located below the drop hopper. The lifting cylinder extends, causing the lifting platform to rise relative to the fixed base, thus facilitating the forming mold to carry away the diamond and copper powders. Then, the inner conveyor belt transports the forming mold to the blocking block, which blocks the forming mold. Finally, the forming mold, along with the diamond and copper powders, enters the forming mechanism.

[0011] The completed diamond-copper composite material, along with the molding die, is placed on the outer conveyor belt. The diamond-copper composite material is then manually removed, and the outer conveyor belt transports the molding die to the transfer rack. The molding die is then lifted by a transfer suction cup, and the transfer motor drives the transfer screw to rotate. The transfer screw causes the transfer block to slide along the transfer screw, and the transfer block and transfer suction cup carry the molding die to the top of the inner conveyor belt. The transfer suction cup then releases the molding die, allowing it to move from the outer conveyor belt to the inner conveyor belt. The inner conveyor belt then transports the molding die to the bottom of the discharge hopper for recycling.

[0012] Furthermore, the mixing mechanism includes an upper inlet bucket fixedly installed on the drop hopper, a mixing box fixedly installed on the upper inlet bucket, two inlets on the mixing box, an inner rotating shaft rotatably installed inside the mixing box, multiple mixing blades fixedly installed at the bottom of the inner rotating shaft, an inner mixing shaft rotatably installed inside the inner rotating shaft, multiple inner mixing blades at the bottom of the inner mixing shaft, and two mixing motors fixedly installed on the mixing box. The two mixing motors drive the inner rotating shaft and the inner mixing shaft to rotate in opposite directions via belt drives.

[0013] Furthermore, the mixing mechanism also includes an upper connecting frame fixedly mounted on a fixed base. Two ejector sleeves are fixedly mounted on the upper connecting frame. A feed hopper is fixedly mounted on each ejector sleeve. A drop-out hole is provided at the lower end of the ejector sleeve, located above the inlet. An inner push column is slidably mounted inside the ejector sleeve. An inner push frame is provided on the inner push column. An upper push connecting rod is rotatably mounted on the inner push column. An adjusting frame is fixedly mounted on the upper connecting frame. An upper eccentric disc is rotatably mounted on the adjusting frame. A lower transmission wheel is fixedly mounted on the upper eccentric disc. An upper eccentric column is eccentrically mounted on the upper eccentric disc. The upper push connecting rod is rotatably mounted on the upper eccentric column. A motor frame is fixedly mounted on the adjusting frame. A feeding motor is fixedly mounted on the motor frame.

[0014] Furthermore, the adjusting frame is equipped with two adjusting modules. Each adjusting module includes a driving conical wheel rotatably mounted on the adjusting frame, an adjusting motor fixedly mounted on the adjusting frame, a driving lead screw fixedly mounted on the motor shaft of the adjusting motor, the driving lead screw rotatably mounted to the adjusting frame, an outer guide post fixedly mounted on the adjusting frame, an internal threaded block slidably mounted on the outer guide post, the internal threaded block and the driving lead screw forming a threaded transmission, an outer adjusting conical wheel rotatably mounted outside the internal threaded block, and a driven lead screw rotatably mounted on the adjusting frame. The driving lead screw drives the driven lead screw to rotate via an adjusting belt, thus adjusting... An inner guide column is fixedly installed on the frame, and a threaded block is slidably installed on the inner guide column. The threaded block and the driven screw form a threaded transmission. An inner adjusting cone wheel is rotatably installed on the outside of the threaded block. A driven cone wheel is rotatably installed on the adjusting frame. The inner sides of the driving cone wheel, the outer adjusting cone wheel, the inner adjusting cone wheel and the driven cone wheel are conical surfaces. An inner conical belt with a conical inner surface is wound around the conical surfaces of the driving cone wheel, the outer adjusting cone wheel, the inner adjusting cone wheel and the driven cone wheel. An upper transmission wheel is fixedly installed on the driven cone wheel. A vertical transmission belt is wound around the upper transmission wheel and the lower transmission wheel. The feeding motor drives the driving cone wheel to rotate through the transmission belt.

[0015] The feeding motor drives two active cone wheels to rotate via two transmission belts. The active cone wheels drive the driven cone wheel and the upper transmission wheel to rotate via the inner cone belt. The upper transmission wheel drives the lower transmission wheel and the upper eccentric disc to rotate via the vertical transmission belt. The upper eccentric disc drives the upper eccentric column to rotate eccentrically. The upper eccentric column drives the inner push column to slide back and forth within the ejector sleeve via the upper push connecting rod.

[0016] Diamond powder and copper powder are placed into two separate feed hoppers. The diamond powder and copper powder then fall onto the inner pusher column. When the inner pusher frame reaches below the feed hopper, the diamond powder and copper powder fall into the inner pusher frame. After the inner pusher frame leaves below the feed hopper, the inner pusher column blocks the powder in the feed hopper to prevent it from falling out. When the inner pusher frame reaches above the inlet, the diamond powder and copper powder in the inner pusher frame enter the mixing box. Two mixing motors drive the inner rotating shaft and the inner mixing shaft to rotate in opposite directions via transmission belts. The mixing blades and the inner mixing blades thoroughly mix the diamond powder and copper powder. The mixed diamond powder and copper powder fall into the drop hopper.

[0017] When it is necessary to adjust the mixing ratio of diamond powder and copper powder, the motor drives the drive screw to rotate, causing the internal thread block to slide along the outer guide post, thereby adjusting the distance between the outer adjusting cone wheel and the drive cone wheel. At the same time, the drive screw drives the driven screw to rotate via the adjusting belt, causing the thread block to slide along the inner guide post, thus adjusting the distance between the inner adjusting cone wheel and the driven cone wheel. The outer adjusting cone wheel and the inner adjusting cone wheel move in the same direction. When the outer adjusting cone wheel and the inner adjusting cone wheel move to the right, the contact diameter between the inner cone belt and the drive cone wheel and the outer adjusting cone wheel increases, while the contact diameter between the inner cone belt and the driven cone wheel and the inner adjusting cone wheel decreases, thereby increasing the output speed of the driven cone wheel. Similarly, when the outer adjusting cone wheel and the inner adjusting cone wheel move to the left, the output speed of the driven cone wheel decreases. The feed ratio of diamond powder and copper powder is adjusted by adjusting the output speed of the two adjusting modules.

[0018] Furthermore, the forming mechanism includes a fixed block fixedly installed on the base plate, an infeed electric cylinder fixedly installed on the fixed block, an infeed frame fixedly installed on the output end of the infeed electric cylinder, a lifting electric cylinder fixedly installed on the infeed frame, a lifting plate fixedly installed on the output end of the lifting electric cylinder, a clamping electric cylinder fixedly installed on the lifting plate, a clamping plate fixedly installed on the output end of the clamping electric cylinder, and the clamping plate and the lifting plate are slidably installed.

[0019] Furthermore, the molding mechanism also includes a molding box fixedly installed on the base plate, a heater fixedly installed inside the molding box, a piston slidably installed inside the molding box, a compaction end fixedly installed below the piston, a lifting column fixedly installed on the piston, a lifting frame fixedly installed on the lifting column, a vacuum tube fixedly installed on the molding box, a sealing plate fixedly installed on the lifting frame, and a connecting hole provided on the sealing plate. In the initial state, the sealing plate seals the vacuum tube. A sealing door panel is slidably installed on the molding box, and the sealing door panel is slidably installed with the lifting frame. A closing spring is provided between the sealing door panel and the lifting frame.

[0020] When the molding die moves to the blocking block, the lifting cylinder extends, causing the lifting plate to descend. Then, the clamping cylinder extends, clamping the molding die via the clamping plate and the lifting plate. Next, the infeed cylinder extends, placing the molding die on the heater. The infeed cylinder then retracts to prevent interference with the closing of the sealing door. Subsequently, the cylinder drives the piston, compaction end, lifting column, lifting frame, and sealing plate to descend. The lifting frame, via a closing spring, pushes the sealing door down, closing the molding box. When the sealing door closes the molding box, the compaction end has not yet contacted the diamond powder and copper powder, and the connecting hole has not yet reached the vacuum tube. Then, the compaction end… The end, lifting frame, and sealing plate continue to descend. The lifting frame slides relative to the sealing door, the closing spring is compressed, and the connecting hole reaches the vacuum tube. The external vacuum machine evacuates the molding box through the vacuum tube. At the same time, the heater heats the diamond powder and copper powder in the molding mold. Then, the compaction end compresses the diamond powder and copper powder in the molding mold. Then, the piston, compaction end, lifting column, lifting frame, and sealing plate rise. First, the compaction end leaves the molding mold. Then, the sealing plate seals the vacuum tube. Then, the sealing door opens, the electric cylinder extends, and the molding mold is removed. Then, the molding mold is placed on the outer molding box.

[0021] The preparation method of diamond-copper composite material is as follows: (1) diamond powder and copper powder are added in a certain proportion; (2) diamond powder and copper powder are mixed evenly; (3) a certain amount of diamond powder and copper powder are placed into the molding mold; (4) the molding mold with diamond powder and copper powder enters the molding mechanism; (5) the molding operation space is sealed and vacuumed; (6) diamond powder and copper powder are pressed into shape; (7) the molded product is taken out and the molding mold is reused.

[0022] The beneficial effects of this invention compared with the prior art are: (1) The mixing mechanism set up in this invention uses a dual motor to drive the inner rotating shaft and the inner mixing shaft to rotate in opposite directions, thereby driving the mixing blades and the inner mixing blades to form a highly efficient and powerful three-dimensional shearing and convection stirring, effectively overcoming the problem of uneven mixing caused by the difference in physical properties between diamond and copper powder. The mixing mechanism is equipped with a stepless speed regulation module based on a conical wheel and a conical belt. By adjusting the motor drive screw, the effective transmission diameter of the active conical wheel and the driven conical wheel can be changed synchronously, thereby accurately and linearly adjusting the pushing reciprocating frequency of the two feeding channels, realizing independent and continuous proportional adjustment of the amount of diamond powder and copper powder fed, and improving the process flexibility and versatility of the equipment; (2) The placement mechanism set up in this invention cooperates with the mixing mechanism to realize that the mixed powder falls into the placement frame and the inner push frame, which are fixed volumes. The cavity is precisely measured in volume and then pushed into the mold by mechanical movement, which ensures that the amount of powder loaded into the molding mold is highly consistent each time. This process is fully automated, eliminating the loading error caused by human factors, improving the dimensional consistency and performance stability between product batches, and providing a reliable guarantee for large-scale and standardized production; (3) The molding mechanism set up in this invention integrates and automates the actions of heating, pressurizing, vacuuming and mold entry and exit. The linkage sealing design realizes the precise timing control of first mechanically sealing the cavity, then vacuuming, and then holding pressure and heating and pressurizing. It ensures that a reliable vacuum or protective atmosphere environment can always be maintained during the most critical high-temperature pressurization stage of powder sintering, effectively preventing material oxidation. While improving product quality, it also reduces the safety risks of traditional manual operation and the dependence on operating skills. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the mechanism structure of the present invention. Figure 1 .

[0025] Figure 3 This is a schematic diagram of the mechanism structure of the present invention. Figure 2 .

[0026] Figure 4 This is a schematic diagram of the mechanism structure of the present invention. Figure 3 .

[0027] Figure 5 This is a schematic diagram of the mechanism structure of the present invention. Figure 4 .

[0028] Figure 6 This is a schematic diagram of the mechanism structure of the present invention. Figure 5 .

[0029] Figure 7 This is a schematic diagram of the hybrid mechanism structure of the present invention. Figure 1.

[0030] Figure 8 This is a schematic diagram of the hybrid mechanism structure of the present invention. Figure 2 .

[0031] Figure 9 This is a schematic diagram of the hybrid mechanism structure of the present invention. Figure 3 .

[0032] Figure 10 This is a schematic diagram of the hybrid mechanism structure of the present invention. Figure 4 .

[0033] Figure 11 This is a schematic diagram of the hybrid mechanism structure of the present invention. Figure 5 .

[0034] Figure 12 This is a schematic diagram of the hybrid mechanism structure of the present invention. Figure 6 .

[0035] Figure 13 This is a schematic diagram of the molding mechanism of the present invention. Figure 1 .

[0036] Figure 14 This is a schematic diagram of the molding mechanism of the present invention. Figure 2 .

[0037] Reference numerals: 101-Base plate; 102-Conveyor frame; 103-Conveyor motor; 104-Motor wheel; 105-Input belt; 106-Input wheel; 107-Driven roller; 108-Conveyor belt; 109-Fixed base; 110-Pushing motor; 111-Pushing belt; 112-Pushing wheel; 113-Eccentric wheel; 114-Eccentric column; 115-Pushing rod; 116-Pushing block; 117-Placement frame; 118-Discharge hopper; 119-Forming mold; 120-Transfer motor; 121-Transfer frame; 122-Transfer block; 123-Transfer screw; 124-Transfer guide post; 125-Transfer suction cup; 126-Lifting cylinder; 127-Lifting platform; 128-Fixing sleeve; 129-Blocking block; 201-Falling hopper; 130-Falling hole; 202-Upper inlet hopper; 203-Inner rotating shaft; 204-Mixing blade; 205-Mixing box; 206-Mixing motor; 207-Ejection sleeve; 208-Feed hopper; 209-Upper connecting frame; 210-Upper eccentric plate; 211-Upper eccentric column; 212-Upper push connecting rod; 213-Inner push Column; 214-Inner push frame; 215-Inlet; 216-Motor frame; 217-Feeding motor; 218-Discharge hole; 219-Internal mixing blade; 220-Internal mixing shaft; 221-Adjusting frame; 222-Conduction belt; 223-Drive conical pulley; 224-Adjusting motor; 225-Drive screw; 226-Outer guide column; 227-Internal threaded block; 228-External adjusting conical pulley; 229-Adjusting belt; 230-Driven screw; 231-Inner guide column; 232-Threaded block; 233-Internal adjusting conical pulley; 234-Driven conical pulley; 2 35-Upper drive wheel; 236-Inner conical belt; 237-Vertical drive belt; 238-Lower drive wheel; 301-Fixing block; 302-Infeed / outfeed electric cylinder; 303-Infeed / outfeed frame; 304-Lifting electric cylinder; 305-Lifting plate; 306-Clamping electric cylinder; 307-Clamping plate; 308-Forming box; 309-Vacuum tube; 310-Closed door panel; 311-Lifting frame; 312-Closing spring; 313-Lifting column; 314-Piston; 315-Closed plate; 316-Connecting hole; 317-Heater; 318-Compacting end. Detailed Implementation

[0038] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0039] Example: Reference Figures 1-14 A diamond-copper composite material preparation device includes a base plate 101 and an infeeding mechanism for quantitatively infeeding the mixed powder into a molding die 119. The infeeding mechanism is equipped with a mixing mechanism for quantitatively mixing diamond powder and copper powder, and the base plate 101 is equipped with a molding mechanism for pressurizing and sintering the mixed diamond powder and copper powder. The feeding mechanism includes a fixed base 109 fixedly installed on the base plate 101, a lifting platform 127 slidably installed inside the fixed base 109, a fixed sleeve 128 fixedly installed on the lifting platform 127, a drop hole 130 provided at the lower end of the fixed sleeve 128, a conveyor frame 102 fixedly installed on the base plate 101, a blocking block 129 fixedly installed on the conveyor frame 102, and two conveying modules with opposite conveying directions provided on the conveyor frame 102.

[0040] like Figures 2-6 As shown, the feeding mechanism also includes a lifting cylinder 126 fixedly installed on the fixed base 109. The output end of the lifting cylinder 126 is fixedly installed on the lifting platform 127. A pusher motor 110 is fixedly installed on the lifting platform 127. An eccentric wheel 113 is rotatably installed on the lifting platform 127. A pusher wheel 112 is fixedly installed on the eccentric wheel 113. The pusher motor 110 drives the pusher wheel 112 to rotate through the pusher belt 111. An eccentric column 114 is eccentrically fixedly installed on the eccentric wheel 113. A pusher rod 115 is rotatably installed on the eccentric column 114. The feeding mechanism also includes a pusher block 116 slidably installed in the fixed sleeve 128. A placement frame 117 is provided on the pusher block 116. A dropping hopper 118 is fixedly installed below the end of the fixed sleeve 128. The pusher block 116 and the pusher rod 115 are rotatably installed.

[0041] like Figures 2-6 As shown, the placement mechanism also includes a transfer frame 121 fixedly installed on the conveyor frame 102. A transfer motor 120 is fixedly installed on the transfer frame 121. A transfer guide post 124 is fixedly installed on the transfer frame 121. A transfer screw 123 is rotatably installed on the transfer frame 121. The transfer screw 123 is fixedly installed with the motor shaft of the transfer motor 120. A transfer block 122 is slidably installed on the transfer guide post 124. The transfer block 122 and the transfer screw 123 form a threaded transmission. A transfer suction cup 125 is provided at the bottom of the transfer block 122.

[0042] like Figures 2-6 As shown, the conveying module includes a conveying motor 103 fixedly mounted on the base plate 101. A motor wheel 104 is fixedly mounted on the motor shaft of the conveying motor 103. An input wheel 106 and a plurality of driven rollers 107 are rotatably mounted inside the conveying frame 102. A conveying belt 108 is wound around the input wheel 106 and the plurality of driven rollers 107. An input belt 105 is wound around the motor wheel 104 and the input wheel 106. A forming mold 119 is placed on the conveying belt 108.

[0043] The pusher motor 110 drives the pusher wheel 112 and the eccentric wheel 113 to rotate via the pusher belt 111. The eccentric wheel 113 drives the eccentric column 114 to move eccentrically. The eccentric column 114 drives the pusher block 116 to slide back and forth in the fixed sleeve 128 via the pusher rod 115. The conveyor motor 103 drives the motor wheel 104 to rotate. The motor wheel 104 drives the input wheel 106 to rotate via the input belt 105. The input wheel 106 drives the conveyor belt 108 to move. The two conveyor belts 108 move in opposite directions. The conveyor belt 108 located below the hopper 118 moves the forming mold 119 toward the forming mechanism. The conveyor belt 108 located on the outside moves the forming mold 119 away from the forming mechanism.

[0044] After mixing, the diamond powder and copper powder fall into the drop hopper 201 and onto the pusher block 116. When the placement frame 117 reaches below the drop hopper 201, the mixed diamond powder and copper powder fall into the placement frame 117 and fill it completely, achieving a quantitative distribution. Subsequently, as the pusher block 116 moves away from below the drop hopper 201 with the placement frame 117, it blocks the powder in the drop hopper 201 to prevent it from falling out. When the placement frame 117 reaches above the drop hole 130, the diamond powder and copper powder in the placement frame 117... Diamond powder and copper powder enter the hopper 118 and then fall into the forming mold 119 located below the hopper 118. The lifting cylinder 126 extends and drives the lifting platform 127 to rise relative to the fixed base 109, so that the forming mold 119 can carry away the diamond powder and copper powder. Then, the inner conveyor belt 108 transports the forming mold 119 to the blocking block 129. The blocking block 129 blocks the forming mold 119, and then the forming mold 119 carries the diamond powder and copper powder into the forming mechanism.

[0045] The completed diamond-copper composite material, along with the molding die 119, is placed on the outer conveyor belt 108. The diamond-copper composite material is then manually removed. The outer conveyor belt 108 then transports the molding die 119 to the transfer rack 121. The transfer suction cup 125 picks up the molding die 119, and the transfer motor 120 drives the transfer screw 123 to rotate. The transfer screw 123 drives the transfer block 122 to slide along the transfer screw 123. The transfer block 122 and the transfer suction cup 125 carry the molding die 119 to the top of the inner conveyor belt 108. The transfer suction cup 125 then releases the molding die 119, allowing it to move from the outer conveyor belt 108 to the inner conveyor belt 108. The inner conveyor belt 108 then transports the molding die 119 to the bottom of the discharge hopper 118 for recycling.

[0046] like Figures 7-12As shown, the mixing mechanism includes an upper inlet hopper 202 fixedly installed on a drop hopper 201, a mixing box 205 fixedly installed on the upper inlet hopper 202, two inlets 215 provided on the mixing box 205, an inner rotating shaft 203 rotatably installed inside the mixing box 205, multiple mixing blades 204 fixedly installed at the bottom of the inner rotating shaft 203, an inner mixing shaft 220 rotatably installed inside the inner rotating shaft 203, multiple inner mixing blades 219 provided at the bottom of the inner mixing shaft 220, and two mixing motors 206 fixedly installed on the mixing box 205. The two mixing motors 206 drive the inner rotating shaft 203 and the inner mixing shaft 220 to rotate in opposite directions via belt drives.

[0047] like Figures 7-12 As shown, the mixing mechanism also includes an upper connecting frame 209 fixedly mounted on a fixed base 109. Two ejector sleeves 207 are fixedly mounted on the upper connecting frame 209. A feed hopper 208 is fixedly mounted on each ejector sleeve 207. A drop-out hole 218 is provided at the lower end of each ejector sleeve 207, located above the inlet 215. An inner pusher column 213 is slidably mounted inside the ejector sleeve 207. An inner pusher frame 214 is provided on the inner pusher column 213. An upper push rod 212 is rotatably mounted. An adjusting frame 221 is fixedly mounted on the upper connecting frame 209. An upper eccentric disc 210 is rotatably mounted on the adjusting frame 221. A lower transmission wheel 238 is fixedly mounted on the upper eccentric disc 210. An upper eccentric column 211 is eccentrically mounted on the upper eccentric disc 210. The upper push rod 212 and the upper eccentric column 211 are rotatably mounted. A motor frame 216 is fixedly mounted on the adjusting frame 221. A feeding motor 217 is fixedly mounted on the motor frame 216.

[0048] like Figures 7-12As shown, the adjusting frame 221 is equipped with two adjusting modules. Each adjusting module includes a drive cone wheel 223 rotatably mounted on the adjusting frame 221, an adjusting motor 224 fixedly mounted on the adjusting frame 221, a drive screw 225 fixedly mounted on the motor shaft of the adjusting motor 224, the drive screw 225 rotatably mounted to the adjusting frame 221, an outer guide post 226 fixedly mounted on the adjusting frame 221, an internal thread block 227 slidably mounted on the outer guide post 226, the internal thread block 227 and the drive screw 225 forming a threaded transmission, an outer adjusting cone wheel 228 rotatably mounted outside the internal thread block 227, and a driven screw 230 rotatably mounted on the adjusting frame 221. The drive screw 225 drives the driven screw 230 to rotate via an adjusting belt 229. The adjusting frame 221 is also equipped with... An inner guide post 231 is provided, on which a threaded block 232 is slidably mounted. The threaded block 232 and the driven lead screw 230 form a threaded transmission. An inner adjusting cone wheel 233 is rotatably mounted on the outside of the threaded block 232. A driven cone wheel 234 is rotatably mounted on the adjusting frame 221. The inner sides of the driving cone wheel 223, the outer adjusting cone wheel 228, the inner adjusting cone wheel 233, and the driven cone wheel 234 are conical surfaces. An inner conical belt 236 with a conical inner surface is wound around the conical surfaces of the driving cone wheel 223, the outer adjusting cone wheel 228, the inner adjusting cone wheel 233, and the driven cone wheel 234. An upper transmission wheel 235 is fixedly mounted on the driven cone wheel 234. A vertical transmission belt 237 is wound around the upper transmission wheel 235 and the lower transmission wheel 238. The feeding motor 217 drives the driving cone wheel 223 to rotate through the transmission belt 222.

[0049] The feeding motor 217 drives two active cone wheels 223 to rotate via two transmission belts 222. The active cone wheels 223 drive the driven cone wheel 234 and the upper transmission wheel 235 to rotate via the inner cone belt 236. The upper transmission wheel 235 drives the lower transmission wheel 238 and the upper eccentric disc 210 to rotate via the vertical transmission belt 237. The upper eccentric disc 210 drives the upper eccentric column 211 to rotate eccentrically. The upper eccentric column 211 drives the inner push column 213 to slide back and forth within the ejection sleeve 207 via the upper push connecting rod 212.

[0050] Diamond powder and copper powder are placed into two feed hoppers 208 respectively. Then, the diamond powder and copper powder fall onto the inner pusher 213. When the inner pusher frame 214 reaches below the feed hopper 208, the diamond powder and copper powder fall into the inner pusher frame 214 respectively. Then, when the inner pusher frame 214 leaves below the feed hopper 208, the inner pusher 213 blocks the powder in the feed hopper 208 to prevent the powder from falling out. When the inner pusher frame 214 reaches above the inlet 215, the diamond powder and copper powder in the inner pusher frame 214 enter the mixing box 205. Two mixing motors 206 drive the inner rotating shaft 203 and the inner mixing shaft 220 to rotate in opposite directions through the transmission belt. The diamond powder and copper powder are fully mixed by the mixing blades 204 and the inner mixing blades 219. The mixed diamond powder and copper powder fall into the drop hopper 201.

[0051] When it is necessary to adjust the mixing ratio of diamond powder and copper powder, the driving screw 225 is rotated by the adjusting motor 224, causing the internal thread block 227 to slide along the outer guide post 226, thereby adjusting the distance between the external adjusting cone wheel 228 and the driving cone wheel 223. At the same time, the driving screw 225 drives the driven screw 230 to rotate via the adjusting belt 229, causing the thread block 232 to slide along the inner guide post 231, thereby adjusting the distance between the internal adjusting cone wheel 233 and the driven cone wheel 234. The external adjusting cone wheel 228 and the internal adjusting cone wheel 233 are oriented in the same direction. When the outer adjusting cone wheel 228 and the inner adjusting cone wheel 233 move to the right, the contact diameter between the inner cone belt 236 and the driving cone wheel 223 and the outer adjusting cone wheel 228 increases, while the contact diameter between the inner cone belt 236 and the driven cone wheel 234 and the inner adjusting cone wheel 233 decreases. This causes the output speed of the driven cone wheel 234 to increase. Similarly, when the outer adjusting cone wheel 228 and the inner adjusting cone wheel 233 move to the left, the output speed of the driven cone wheel 234 decreases. The ratio of diamond powder to copper powder feed is adjusted by regulating the output speed of the two regulating modules.

[0052] like Figure 13 , Figure 14 As shown, the molding mechanism includes a fixing block 301 fixedly installed on the base plate 101. An infeed cylinder 302 is fixedly installed on the fixing block 301. An infeed frame 303 is fixedly installed on the output end of the infeed cylinder 302. A lifting cylinder 304 is fixedly installed on the infeed frame 303. A lifting plate 305 is fixedly installed on the output end of the lifting cylinder 304. A clamping cylinder 306 is fixedly installed on the lifting plate 305. A clamping plate 307 is fixedly installed on the output end of the clamping cylinder 306. The clamping plate 307 and the lifting plate 305 are slidably installed together.

[0053] like Figure 13 , Figure 14 As shown, the molding mechanism also includes a molding box 308 fixedly installed on the base plate 101. A heater 317 is fixedly installed inside the molding box 308. A piston 314 is slidably installed inside the molding box 308. A compaction end 318 is fixedly installed below the piston 314. A lifting column 313 is fixedly installed on the piston 314. A lifting frame 311 is fixedly installed on the lifting column 313. A vacuum tube 309 is fixedly installed on the molding box 308. A sealing plate 315 is fixedly installed on the lifting frame 311. A connecting hole 316 is provided on the sealing plate 315. In the initial state, the sealing plate 315 seals the vacuum tube 309. A sealing door plate 310 is slidably installed on the molding box 308. The sealing door plate 310 and the lifting frame 311 are slidably installed. A closing spring 312 is provided between the sealing door plate 310 and the lifting frame 311.

[0054] When the molding die 119 moves to the blocking block 129, the lifting cylinder 304 extends, causing the lifting plate 305 to descend. Then, the clamping cylinder 306 extends, clamping the molding die 119 via the clamping plate 307 and the lifting plate 305. Next, the in-and-out cylinder 302 extends, placing the molding die 119 on the heater 317. Then, the in-and-out cylinder 302 retracts to prevent interference with the closing of the sealing door 310. Subsequently, the cylinder drives the piston 314, the compaction end 318, the lifting column 313, the lifting frame 311, and the sealing plate 315 to descend. The lifting frame 311 pushes the sealing door 310 down via the closing spring 312, causing the sealing door 310 to close the molding box 308. When the sealing door 310 closes the molding box 308, the compaction end 318 has not yet contacted the diamond powder and copper powder, and the connecting hole 316 has not yet reached the vacuum tube 309. Then, the compaction end... End 318, lifting frame 311 and closing plate 315 continue to descend. Lifting frame 311 slides relative to closing door plate 310. The closing spring 312 is compressed. The connecting hole 316 reaches the vacuum tube 309. The external vacuum machine evacuates the molding box 308 through the vacuum tube 309. At the same time, heater 317 heats the diamond powder and copper powder in the molding mold 119. Then, compaction end 318 compresses the diamond powder and copper powder in the molding mold 119 into a mold. Then, piston 314, compaction end 318, lifting column 313, lifting frame 311 and closing plate 315 rise. First, compaction end 318 leaves the molding mold 119. Then, closing plate 315 closes the vacuum tube 309. Then, closing door plate 310 opens. Inlet and outlet electric cylinder 302 extends and removes molding mold 119. Then, molding mold 119 is placed on the outer molding box 308.

[0055] A method for preparing diamond-copper composite material, characterized by the following steps: (1) diamond powder and copper powder are added in a certain proportion; (2) diamond powder and copper powder are mixed evenly; (3) a certain amount of diamond powder and copper powder are placed into the molding mold 119; (4) the molding mold 119 carries the diamond powder and copper powder into the molding mechanism; (5) the space of the molding operation is sealed and vacuumed; (6) the diamond powder and copper powder are pressed into shape; (7) the molded product is taken out and the molding mold 119 is reused.

[0056] Working principle: The feeding motor 217 drives two active cone wheels 223 to rotate through two transmission belts 222. The active cone wheels 223 drive the driven cone wheel 234 and the upper transmission wheel 235 to rotate through the inner cone belt 236. The upper transmission wheel 235 drives the lower transmission wheel 238 and the upper eccentric disk 210 to rotate through the vertical transmission belt 237. The upper eccentric disk 210 drives the upper eccentric column 211 to rotate eccentrically. The upper eccentric column 211 drives the inner push column 213 to slide back and forth in the ejection sleeve 207 through the upper push connecting rod 212. Diamond powder and copper powder are placed into two feed hoppers 208 respectively. Then, the diamond powder and copper powder fall onto the inner pusher 213. When the inner pusher frame 214 reaches below the feed hopper 208, the diamond powder and copper powder fall into the inner pusher frame 214 respectively. Then, when the inner pusher frame 214 leaves below the feed hopper 208, the inner pusher 213 blocks the powder in the feed hopper 208 to prevent the powder from falling out. When the inner pusher frame 214 reaches above the inlet 215, the diamond powder and copper powder in the inner pusher frame 214 enter the mixing box 205. Two mixing motors 206 drive the inner rotating shaft 203 and the inner mixing shaft 220 to rotate in opposite directions through the transmission belt. The diamond powder and copper powder are fully mixed by the mixing blades 204 and the inner mixing blades 219. The mixed diamond powder and copper powder fall into the drop hopper 201.

[0057] When it is necessary to adjust the mixing ratio of diamond powder and copper powder, the driving screw 225 is rotated by the adjusting motor 224, causing the internal thread block 227 to slide along the outer guide post 226, thereby adjusting the distance between the external adjusting cone wheel 228 and the driving cone wheel 223. At the same time, the driving screw 225 drives the driven screw 230 to rotate via the adjusting belt 229, causing the thread block 232 to slide along the inner guide post 231, thereby adjusting the distance between the internal adjusting cone wheel 233 and the driven cone wheel 234. The external adjusting cone wheel 228 and the internal adjusting cone wheel 233 are oriented in the same direction. When the outer adjusting cone wheel 228 and the inner adjusting cone wheel 233 move to the right, the contact diameter between the inner cone belt 236 and the driving cone wheel 223 and the outer adjusting cone wheel 228 increases, while the contact diameter between the inner cone belt 236 and the driven cone wheel 234 and the inner adjusting cone wheel 233 decreases. This causes the output speed of the driven cone wheel 234 to increase. Similarly, when the outer adjusting cone wheel 228 and the inner adjusting cone wheel 233 move to the left, the output speed of the driven cone wheel 234 decreases. The ratio of diamond powder to copper powder feed is adjusted by regulating the output speed of the two regulating modules.

[0058] The pusher motor 110 drives the pusher wheel 112 and the eccentric wheel 113 to rotate via the pusher belt 111. The eccentric wheel 113 drives the eccentric column 114 to move eccentrically. The eccentric column 114 drives the pusher block 116 to slide back and forth in the fixed sleeve 128 via the pusher rod 115. The conveyor motor 103 drives the motor wheel 104 to rotate. The motor wheel 104 drives the input wheel 106 to rotate via the input belt 105. The input wheel 106 drives the conveyor belt 108 to move. The two conveyor belts 108 move in opposite directions. The conveyor belt 108 located below the hopper 118 moves the forming mold 119 toward the forming mechanism. The conveyor belt 108 located on the outside moves the forming mold 119 away from the forming mechanism.

[0059] After mixing, the diamond powder and copper powder fall into the drop hopper 201 and onto the pusher block 116. When the placement frame 117 reaches below the drop hopper 201, the mixed diamond powder and copper powder fall into the placement frame 117 and fill it completely, achieving a quantitative distribution. Subsequently, as the pusher block 116 moves away from below the drop hopper 201 with the placement frame 117, it blocks the powder in the drop hopper 201 to prevent it from falling out. When the placement frame 117 reaches above the drop hole 130, the diamond powder and copper powder in the placement frame 117... Diamond powder and copper powder enter the hopper 118 and then fall into the forming mold 119 located below the hopper 118. The lifting cylinder 126 extends and drives the lifting platform 127 to rise relative to the fixed base 109, so that the forming mold 119 can carry away the diamond powder and copper powder. Then, the inner conveyor belt 108 transports the forming mold 119 to the blocking block 129. The blocking block 129 blocks the forming mold 119, and then the forming mold 119 carries the diamond powder and copper powder into the forming mechanism.

[0060] When the molding die 119 moves to the blocking block 129, the lifting cylinder 304 extends, causing the lifting plate 305 to descend. Then, the clamping cylinder 306 extends, clamping the molding die 119 via the clamping plate 307 and the lifting plate 305. Next, the in-and-out cylinder 302 extends, placing the molding die 119 on the heater 317. Then, the in-and-out cylinder 302 retracts to prevent interference with the closing of the sealing door 310. Subsequently, the cylinder drives the piston 314, the compaction end 318, the lifting column 313, the lifting frame 311, and the sealing plate 315 to descend. The lifting frame 311 pushes the sealing door 310 down via the closing spring 312, causing the sealing door 310 to close the molding box 308. When the sealing door 310 closes the molding box 308, the compaction end 318 has not yet contacted the diamond powder and copper powder, and the connecting hole 316 has not yet reached the vacuum tube 309. Then, the compaction end... End 318, lifting frame 311 and closing plate 315 continue to descend. Lifting frame 311 slides relative to closing door plate 310. The closing spring 312 is compressed. The connecting hole 316 reaches the vacuum tube 309. The external vacuum machine evacuates the molding box 308 through the vacuum tube 309. At the same time, heater 317 heats the diamond powder and copper powder in the molding mold 119. Then, compaction end 318 compresses the diamond powder and copper powder in the molding mold 119 into a mold. Then, piston 314, compaction end 318, lifting column 313, lifting frame 311 and closing plate 315 rise. First, compaction end 318 leaves the molding mold 119. Then, closing plate 315 closes the vacuum tube 309. Then, closing door plate 310 opens. Inlet and outlet electric cylinder 302 extends and removes molding mold 119. Then, molding mold 119 is placed on the outer molding box 308.

[0061] The completed diamond-copper composite material, along with the molding die 119, is placed on the outer conveyor belt 108. The diamond-copper composite material is then manually removed. The outer conveyor belt 108 then transports the molding die 119 to the transfer rack 121. The transfer suction cup 125 picks up the molding die 119, and the transfer motor 120 drives the transfer screw 123 to rotate. The transfer screw 123 drives the transfer block 122 to slide along the transfer screw 123. The transfer block 122 and the transfer suction cup 125 carry the molding die 119 to the top of the inner conveyor belt 108. The transfer suction cup 125 then releases the molding die 119, allowing it to move from the outer conveyor belt 108 to the inner conveyor belt 108. The inner conveyor belt 108 then transports the molding die 119 to the bottom of the discharge hopper 118 for recycling.

[0062] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the present invention based on the technical solution and inventive concept of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A diamond-copper composite material preparation apparatus, comprising a base plate (101) and an infeeding mechanism for quantitatively infeeding the mixed powder into a molding die (119), characterized in that: The feeding mechanism is provided with a mixing mechanism for quantitatively mixing diamond powder and copper powder, and the base plate (101) is provided with a forming mechanism for pressing and sintering the mixed diamond powder and copper powder. The placement mechanism includes a fixed base (109) fixedly installed on the base plate (101), a lifting platform (127) slidably installed inside the fixed base (109), a fixed sleeve (128) fixedly installed on the lifting platform (127), a drop hole (130) provided below the end of the fixed sleeve (128), a conveyor frame (102) fixedly installed on the base plate (101), a blocking block (129) fixedly installed on the conveyor frame (102), and two conveying modules with opposite conveying directions provided on the conveyor frame (102).

2. The diamond-copper composite material preparation apparatus according to claim 1, characterized in that: The feeding mechanism also includes a lifting cylinder (126) fixedly mounted on a fixed base (109). The output end of the lifting cylinder (126) is fixedly mounted to the lifting platform (127). A pusher motor (110) is fixedly mounted on the lifting platform (127). An eccentric wheel (113) is rotatably mounted on the lifting platform (127). A pusher wheel (112) is fixedly mounted on the eccentric wheel (113). The pusher motor (110) drives the pusher wheel through a pusher belt (111). (112) Rotation, an eccentric column (114) is eccentrically fixed on the eccentric wheel (113), a push rod (115) is rotatably mounted on the eccentric column (114), the placement mechanism also includes a push block (116) slidably mounted in the fixed sleeve (128), a placement frame (117) is provided on the push block (116), a dropping hopper (118) is fixedly mounted below the end of the fixed sleeve (128), the push block (116) and the push rod (115) are rotatably mounted.

3. The diamond-copper composite material preparation apparatus according to claim 2, characterized in that: The placement mechanism also includes a transfer frame (121) fixedly installed on the conveyor frame (102). A transfer motor (120) is fixedly installed on the transfer frame (121). A transfer guide post (124) is fixedly installed on the transfer frame (121). A transfer screw (123) is rotatably installed on the transfer frame (121). The transfer screw (123) is fixedly installed with the motor shaft of the transfer motor (120). A transfer block (122) is slidably installed on the transfer guide post (124). The transfer block (122) and the transfer screw (123) form a threaded transmission. A transfer suction cup (125) is provided at the bottom of the transfer block (122).

4. The diamond-copper composite material preparation apparatus according to claim 3, characterized in that: The conveying module includes a conveying motor (103) fixedly mounted on the base plate (101), a motor wheel (104) fixedly mounted on the motor shaft of the conveying motor (103), an input wheel (106) and a plurality of driven rollers (107) rotatably mounted inside the conveying frame (102), a conveying belt (108) wrapped around the input wheel (106) and the plurality of driven rollers (107), an input belt (105) wrapped around the motor wheel (104) and the input wheel (106), and a forming mold (119) placed on the conveying belt (108).

5. The diamond-copper composite material preparation apparatus according to claim 1, characterized in that: The mixing mechanism includes an upper inlet hopper (202) fixedly installed on the drop hopper (201), a mixing box (205) fixedly installed on the upper inlet hopper (202), two inlets (215) provided on the mixing box (205), an inner rotating shaft (203) rotatably installed inside the mixing box (205), a plurality of mixing blades (204) fixedly installed at the bottom of the inner rotating shaft (203), an inner mixing shaft (220) rotatably installed inside the inner rotating shaft (203), a plurality of inner mixing blades (219) provided at the bottom of the inner mixing shaft (220), and two mixing motors (206) fixedly installed on the mixing box (205). The two mixing motors (206) drive the inner rotating shaft (203) and the inner mixing shaft (220) to rotate in opposite directions respectively through belt drive.

6. The diamond-copper composite material preparation apparatus according to claim 5, characterized in that: The mixing mechanism further includes an upper connecting frame (209) fixedly mounted on the fixed base (109). Two ejector sleeves (207) are fixedly mounted on the upper connecting frame (209). A feed hopper (208) is fixedly mounted on the ejector sleeve (207). A drop-out hole (218) is provided at the lower end of the ejector sleeve (207). The drop-out hole (218) is located above the inlet (215). An inner push column (213) is slidably mounted inside the ejector sleeve (207). An inner push frame (214) is provided on the inner push column (213). An upper push rod (212) is rotatably mounted. An adjusting frame (221) is fixedly mounted on the upper connecting frame (209). An upper eccentric disc (210) is rotatably mounted on the adjusting frame (221). A lower transmission wheel (238) is fixedly mounted on the upper eccentric disc (210). An upper eccentric column (211) is eccentrically mounted on the upper eccentric disc (210). The upper push rod (212) and the upper eccentric column (211) are rotatably mounted. A motor frame (216) is fixedly mounted on the adjusting frame (221). A feeding motor (217) is fixedly mounted on the motor frame (216).

7. The diamond-copper composite material preparation apparatus according to claim 6, characterized in that: The adjusting frame (221) is provided with two adjusting modules. Each adjusting module includes a drive cone wheel (223) rotatably mounted on the adjusting frame (221). An adjusting motor (224) is fixedly mounted on the adjusting frame (221). A drive screw (225) is fixedly mounted on the motor shaft of the adjusting motor (224). The drive screw (225) is rotatably mounted to the adjusting frame (221). An outer guide post (226) is fixedly mounted on the adjusting frame (221). An internal threaded block (227) is slidably mounted on the outer guide post (226). The internal threaded block (227) and the driving screw (225) form a threaded transmission. An external adjusting cone wheel (228) is rotatably mounted on the internal threaded block (227). A driven screw (230) is rotatably mounted on the adjusting frame (221). The driving screw (225) drives the driven screw (230) to rotate through the adjusting belt (229). The inner guide post (231) is fixedly mounted on the adjusting frame (221). A threaded block (232) is slidably mounted on the inner guide post (231). The threaded block (232) and the driven lead screw (230) form a threaded transmission. An inner adjusting cone wheel (233) is rotatably mounted on the outer side of the threaded block (232). A driven cone wheel (234) is rotatably mounted on the adjusting frame (221). The inner sides of the driving cone wheel (223), the outer adjusting cone wheel (228), the inner adjusting cone wheel (233), and the driven cone wheel (234) are conical surfaces. The outer conical surface of the wheel (223), the outer conical wheel (228), the inner conical wheel (233), and the driven conical wheel (234) is wrapped with an inner conical belt (236) with a conical surface on the outside. An upper drive wheel (235) is fixedly installed on the driven conical wheel (234). A vertical drive belt (237) is wrapped around the upper drive wheel (235) and the lower drive wheel (238). The feeding motor (217) drives the active conical wheel (223) to rotate through the transmission belt (222).

8. The diamond-copper composite material preparation apparatus according to claim 1, characterized in that: The forming mechanism includes a fixed block (301) fixedly installed on a base plate (101), an inlet / outlet electric cylinder (302) fixedly installed on the fixed block (301), an inlet / outlet frame (303) fixedly installed on the output end of the inlet / outlet electric cylinder (302), a lifting electric cylinder (304) fixedly installed on the inlet / outlet frame (303), a lifting plate (305) fixedly installed on the output end of the lifting electric cylinder (304), a clamping electric cylinder (306) fixedly installed on the lifting plate (305), and a clamping plate (307) fixedly installed on the output end of the clamping electric cylinder (306). The clamping plate (307) and the lifting plate (305) are slidably installed together.

9. The diamond-copper composite material preparation apparatus according to claim 8, characterized in that: The molding mechanism further includes a molding box (308) fixedly installed on the base plate (101). A heater (317) is fixedly installed inside the molding box (308). A piston (314) is slidably installed inside the molding box (308). A compaction end (318) is fixedly installed below the piston (314). A lifting column (313) is fixedly installed on the piston (314). A lifting frame (311) is fixedly installed on the lifting column (313). A vacuum tube is fixedly installed on the molding box (308). The vacuum tube (309) is fixedly installed on the lifting frame (311). The sealing plate (315) is provided with a connecting hole (316). In the initial state, the sealing plate (315) seals the vacuum tube (309). The forming box (308) is slidably installed with a sealing door plate (310). The sealing door plate (310) is slidably installed with the lifting frame (311). A closing spring (312) is provided between the sealing door plate (310) and the lifting frame (311).

10. The diamond-copper composite material preparation apparatus according to claim 1, characterized in that: A method for preparing diamond-copper composite material, characterized by the following steps: (1) diamond powder and copper powder are added in a certain proportion; (2) diamond powder and copper powder are mixed evenly; (3) a certain amount of diamond powder and copper powder are placed into a molding mold (119); (4) the molding mold (119) carries the diamond powder and copper powder into the molding mechanism; (5) the space of the molding operation is sealed and vacuumed; (6) the diamond powder and copper powder are pressed into shape; (7) the molded product is taken out and the molding mold (119) is reused.

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