Ceramic material preparation method and material preparation equipment for ceramic chopper

Abstract

The invention relates to the technical field of ceramic material preparation, and discloses a ceramic material preparation method and material preparation equipment of a ceramic chopper. According to the invention, a ceramic raw material and a plastic raw material are mixed by using material preparation equipment of a ceramic chopper to obtain a high-mixing-degree ceramic-plastic mixed raw material, and then precise injection molding of the ceramic-plastic composite material is realized through banburying and modification, so that the composite ceramic material has plastic characteristics. In the overturning and mixing process of the raw materials, the raw materials at the two ends of the crushing inner cylinder are conveyed to the crushing and mixing cavity under the conveying of the pressurizing conveying sections at the two ends, so that the raw materials continuously input from the two sides can be accumulated in the crushing and mixing cavity and are crushed under the action of gradually increasing pressure, and the central stirring section is matched with the rotation of the crushing inner cylinder; and the gradually crushed raw materials are fully mixed, so that the mixing uniformity of the ceramic material for producing the ceramic chopper under the condition of lower granularity is effectively ensured.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic material preparation, in particular to a ceramic material preparation method and material preparation equipment for a ceramic splitting knife. Background Art

[0002] Semiconductor ceramic splitters, also known as ceramic capillaries or ceramic nozzles, are welding tools used in the wire bonding process in the field of semiconductor packaging. They are precision microstructured ceramic components with the advantages of high hardness, high mechanical strength, fine grains, high surface finish, high dimensional accuracy, and long service life. Ceramic splitters play an extremely important role in the field of microelectronics processing, especially in microelectronics packaging technology. It is the main packaging technology for realizing electronic interconnection between chips and pins; ceramic splitters are mainly used in semiconductor IC chip packaging and LED optoelectronic packaging. In chip packaging, wire bonding is the mainstream method of internal connection of the package, accounting for more than 90%. As a key tool in the wire bonding process, the performance and selection of ceramic splitters determine the reliability, economy and flexibility of wire bonding.

[0003] The main manufacturing material of ceramic splitters is alumina. High-density fine-grained alumina ceramics have strong wear and oxidation resistance and are easy to clean. After adding zirconium oxide, chromium oxide and other elements on the basis of alumina, the molecular structure of the ceramic splitter will be more compact, harder, more wear-resistant and have a longer life. Among them, in the preparation process of ceramic splitters, the mixing uniformity of raw materials is one of the most important factors affecting the production and molding of ceramic splitters. In the raw material mixing process of ceramic splitters, ceramic mixers and high-power mixers (material preparation equipment for ceramic splitters) are mostly used. In the mixing process, the various raw materials of the ceramic splitter can not only retain the physical properties of the raw materials, but also effectively break up the soft agglomerates during the mixing process, improve the utilization rate of raw materials, shorten the mixing time, and improve production efficiency.

[0004] However, due to the particularity of the ceramic splitter material, the initial particles of various raw materials are relatively large. Although the degree of mixing appears to be high overall, in fact, due to the size of the particles, the actual degree of mixing is not high in the amount of raw materials required for the later extrusion and molding of the ceramic splitter, which requires more rigorous pressurized mixing in the later stage, resulting in higher costs in the later stage and poor uniformity of mixing. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a ceramic material preparation method and material preparation equipment for a ceramic splitting knife.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A method for preparing ceramic materials for a ceramic splitting knife comprises the following steps:

[0008] Prepare raw materials of aluminum oxide, zirconium oxide, chromium oxide and yttrium oxide respectively, and then mix the raw materials of aluminum oxide, zirconium oxide, chromium oxide and yttrium oxide to prepare ceramic raw materials;

[0009] Prepare polypropylene, polyethylene, paraffin, dispersant, adhesive, and lubricant raw materials respectively, and then mix the polypropylene, polyethylene, paraffin, dispersant, adhesive, and lubricant raw materials to prepare plastic raw materials;

[0010] The ceramic raw material and the plastic raw material are heated and mixed by a material preparation device using a ceramic splitter to obtain a ceramic-plastic mixed raw material;

[0011] Mixing the ceramic-plastic raw material in an internal mixer to obtain a ceramic-plastic composite raw material;

[0012] The ceramic-plastic composite raw material is fed into a screw extruder, and after being plasticized by heating, the ceramic-plastic composite raw material is extruded and cut by the screw extruder to obtain a ceramic-plastic composite granular material.

[0013] A material preparation device for a ceramic splitter, used for preparing the ceramic material of the above-mentioned ceramic splitter, comprising: a fixed support, a preparation outer cylinder is rotatably arranged on the top of the fixed support, a crushing inner cylinder is fixedly arranged inside the preparation outer cylinder, an external driving mechanism is arranged on one side of one end of the preparation outer cylinder, and the external driving mechanism can drive the preparation outer cylinder and the crushing inner cylinder to rotate synchronously; feeding mechanisms are arranged at both ends of the preparation outer cylinder, a crushing and stirring mechanism is arranged in the center of the crushing inner cylinder, the crushing inner cylinder includes two conveying and mixing chambers and a crushing and mixing chamber, the crushing and stirring mechanism includes two pressurized conveying sections and a central stirring section, and a discharging mechanism is arranged at the central bottom end of the fixed support; the two conveying and mixing chambers are respectively provided with The two feeding mechanisms are arranged at both ends of the crushing and mixing chamber, the pressurized conveying section is arranged inside the conveying and mixing chamber, and the central stirring section is arranged inside the crushing and mixing chamber; the two feeding mechanisms can simultaneously supply the premixed raw materials to both ends of the crushing inner cylinder, and under the conveyance of the pressurized conveying sections at both ends, the raw materials at both ends of the crushing inner cylinder can be conveyed to the crushing and mixing chamber while being turned and mixed with the rotation of the crushing inner cylinder; the raw materials continuously input from both sides can be accumulated inside the crushing and mixing chamber and crushed under the action of gradually increasing pressure, and at the same time, the gradually crushed raw materials are fully mixed through the central stirring section cooperating with the rotation of the crushing inner cylinder; the raw materials after mixing are discharged from the discharging mechanism.

[0014] Preferably, the external driving mechanism includes an external driving motor, a speed regulator and a driving gear. A driven ring plate is provided on the side of the preparation outer cylinder close to the external driving mechanism, and the driven ring plate is in gear meshing with the driving gear. The output shaft of the external driving motor extends into the interior of the speed regulator, and the output shaft of the speed regulator rotates coaxially with the driving gear. The power output by the external driving motor can drive the driving gear to rotate after the speed change of the speed regulator, and is transmitted to the driven ring plate to drive the preparation outer cylinder and the crushing inner cylinder to rotate synchronously.

[0015] Preferably, the crushing and stirring mechanism includes a stirring main shaft, and a stirring auger is arranged outside the stirring main shaft and inside the conveying and mixing chamber, and the outer end of the stirring auger is in close contact with the conveying and mixing chamber; under the conveyance of the two stirring augers, the raw materials at both ends of the crushing inner barrel can be continuously conveyed to the crushing and mixing chamber.

[0016] Preferably, a plurality of stirring rods are arranged outside the stirring main shaft and inside the conveying mixing chamber, and a stirring blade is arranged at one end of each stirring rod away from the stirring main shaft; the outer end of the stirring blade connected to the longest stirring rod is in contact with the inner wall of the crushing mixing chamber.

[0017] Preferably, the feeding mechanism includes a delivery box, an open feed barrel and a feeding auger, one end of the open feed barrel is connected to the end of the crushing inner barrel, and the other end of the open feed barrel is arranged directly below the bottom opening of the delivery box; the feeding auger is arranged inside the open feed barrel, and the feeding auger can provide power to transport the raw materials from one end of the open feed barrel away from the crushing inner barrel to the end of the crushing inner barrel.

[0018] Preferably, the transmission shafts of the two feeding augers are respectively fixed between the two ends of the stirring main shaft; the spiral pitches of the two feeding augers are consistent, the spiral pitches of the two stirring augers are consistent, and the spiral pitch of the two feeding augers is greater than the spiral pitch of the two stirring augers; the spiral directions of the feeding augers and the stirring augers located on both sides of the crushing mixing chamber are opposite, and when the feeding augers and the stirring augers rotate synchronously, raw materials can be input into the crushing mixing chamber from both sides of the crushing mixing chamber at the same time.

[0019] Preferably, the preparation outer cylinder and the crushing inner cylinder are connected and fixed by a plurality of bolts, an external discharge port is opened in the center of the preparation outer cylinder, an internal discharge port is opened in the center of the crushing inner cylinder, the external discharge port is aligned with the internal discharge port, and the diameter of the external discharge port is larger than the diameter of the internal discharge port.

[0020] Preferably, a sealing mechanism is arranged between the preparation outer cylinder and the crushing inner cylinder, and the sealing mechanism comprises two sealing arc plates and two telescopic rod groups, and the inner and outer sides of the two sealing arc plates are respectively slidably connected with the inner wall of the preparation outer cylinder and the outer wall of the crushing inner cylinder, and the movable end of the telescopic rod of each telescopic rod group is connected and fixed to the sealing arc plates; when the telescopic rods of the two telescopic rod groups are synchronously extended to the longest state, the external discharge port and the internal discharge port are both closed by the sealing arc plates; when the telescopic rods of the two telescopic rod groups are synchronously shortened to the shortest state, the distance between the two sealing arc plates is the largest, and the external discharge port and the internal discharge port are both open.

[0021] Preferably, the discharge mechanism includes a connecting cylinder and a guiding cylinder, one end of the connecting cylinder is connected to the guiding cylinder, and the other end of the connecting cylinder is open. When the external discharge port and the internal discharge port are moved to the top of the connecting cylinder by the drive of the external driving mechanism, the sealing arc plate can open the external discharge port and the internal discharge port, and the mixed raw materials that fall into the connecting cylinder are discharged through the guidance of the guiding cylinder.

[0022] Compared with the prior art, the present invention provides a ceramic material preparation method and material preparation equipment for a ceramic splitting knife, which has the following beneficial effects:

[0023] 1. The ceramic material preparation method of the ceramic splitter is to obtain a ceramic-plastic mixed raw material with a high degree of mixing by mixing the ceramic raw material and the plastic raw material using a material preparation device of the ceramic splitter, and then realize the precision injection molding of the ceramic-plastic composite material through mixing and modification, so that the composite ceramic material has plastic properties, and obtain precision ceramic blanks through a precision ceramic mold molding process, and can mass-produce precision ceramic blanks. Compared with traditional dry-pressed blanks, the precision of the ceramic blanks is improved, and the production efficiency is improved.

[0024] 2. In the material preparation equipment of the ceramic splitter, the raw materials are fed from two feeding mechanisms on both sides respectively, and the power output by the external driving motor of the external driving mechanism can drive the driving gear to rotate after the speed change of the speed regulator, and is transmitted to the driven ring plate through the gear meshing between the driven ring plate and the driving gear to drive the preparation outer cylinder and the crushing inner cylinder to rotate synchronously, so that the raw materials entering the crushing inner cylinder can be turned over and mixed by the continuous rotation of the preparation outer cylinder and the crushing inner cylinder; and in the process of turning over and mixing the raw materials, the raw materials at both ends of the crushing inner cylinder are conveyed to the crushing mixing chamber under the conveyance of the pressurized conveying sections at both ends, so that the raw materials continuously input from both sides can be accumulated in the crushing mixing chamber and crushed under the action of gradually increasing pressure, so that the particles in the raw materials can be effectively mixed, and the original large particles in the raw materials can be effectively pressed and crushed by the pressure provided by the pressurized conveying section, and the gradually crushed raw materials can be fully mixed in the central stirring section in coordination with the rotation of the crushing inner cylinder, so as to effectively ensure the mixing uniformity of the ceramic materials at a lower particle size for producing the ceramic splitter.

[0025] 3. The material preparation equipment of this ceramic splitter has the feed augers and the stirring augers located on both sides of the crushing and mixing chamber in opposite spiral directions. When the feed augers and the stirring augers rotate synchronously, the raw materials can be simultaneously input into the crushing and mixing chamber from both sides of the crushing and mixing chamber, and the spiral pitch of the two feed augers is greater than the spiral pitch of the two stirring augers. The smaller spiral pitch of the stirring augers can provide a greater conveying thrust for the raw materials in the conveying process, effectively ensuring that the raw materials accumulated in the crushing and mixing chamber can be crushed under the action of gradually increasing pressure, and can provide a more effective mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is one of the three-dimensional structural schematic diagrams of a material preparation device for a ceramic splitting knife of the present invention;

[0027] Figure 2 This is a second schematic diagram of the three-dimensional structure of a material preparation device for a ceramic splitter of the present invention;

[0028] Figure 3 A cross-sectional view of a material preparation device for a ceramic splitting knife of the present invention;

[0029] Figure 4 It is a partial structural schematic diagram of a material preparation device for a ceramic splitting knife of the present invention;

[0030] Figure 5 It is an assembly schematic diagram of a preparation outer cylinder, a crushing inner cylinder and a crushing and stirring mechanism of a material preparation device for a ceramic splitter of the present invention;

[0031] Figure 6It is a schematic diagram of the assembly of a preparation outer cylinder, a crushing inner cylinder and a sealing mechanism of a material preparation device for a ceramic splitter of the present invention;

[0032] Figure 7 It is a three-dimensional structural schematic diagram of a feeding auger and a crushing and stirring mechanism of a material preparation device for a ceramic splitter of the present invention;

[0033] Figure 8 The present invention is a schematic diagram of the three-dimensional structure of a crushing and stirring mechanism of a material preparation device for a ceramic splitter.

[0034] In the figure: 1. fixed support; 2. preparation outer cylinder; 21. driven ring plate; 22. external discharge port; 3. crushing inner cylinder; 31. conveying mixing chamber; 32. crushing mixing chamber; 33. internal discharge port; 4. external driving mechanism; 41. external driving motor; 42. speed regulator; 43. driving gear; 5. feeding mechanism; 51. delivery box; 52. open feeding cylinder; 53. feeding auger; 6. crushing and stirring mechanism; 61. pressurized conveying section; 62. central stirring section; 63. stirring main shaft; 64. stirring auger; 65. stirring rod; 66. stirring blade; 7. discharge mechanism; 71. connecting cylinder; 72. guide cylinder; 8. blocking mechanism; 81. blocking arc plate; 82. telescopic rod group. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a ceramic material preparation method and material preparation equipment for a ceramic splitting knife.

[0037] Embodiment 1:

[0038] A method for preparing ceramic materials for a ceramic splitting knife comprises the following steps:

[0039] Prepare raw materials of aluminum oxide, zirconium oxide, chromium oxide, and yttrium oxide respectively, and then mix the raw materials of aluminum oxide, zirconium oxide, chromium oxide, and yttrium oxide to prepare a ceramic raw material (in specific use, the mass ratio of the raw materials of aluminum oxide, zirconium oxide, chromium oxide, and yttrium oxide is a common technical solution in the art, and in this application, the ratio is 85:13:0.5:1.5);

[0040] Prepare polypropylene, polyethylene, paraffin, dispersant, adhesive, and lubricant raw materials respectively, and then mix the polypropylene, polyethylene, paraffin, dispersant, adhesive, and lubricant raw materials to prepare plastic raw materials (in specific use, the mass ratio of polypropylene, polyethylene, paraffin, dispersant, adhesive, and lubricant raw materials is a common technical solution in the field, and the types of raw materials of dispersant, adhesive, and lubricant are also common formulas in the field. In this application, the ratio is 20:20:26:9:9:16);

[0041] The ceramic raw material and the plastic raw material are heated and mixed using a material preparation device with a ceramic splitter to obtain a ceramic-plastic mixed raw material (in specific use, the mass ratio of the ceramic raw material to the plastic raw material is a common technical solution in the art, and in this application, the ratio is 4:1);

[0042] Mixing the ceramic-plastic raw material in an internal mixer to obtain a ceramic-plastic composite raw material;

[0043] The ceramic-plastic composite raw material is fed into a screw extruder, and after being plasticized by heating, the ceramic-plastic composite raw material is extruded and cut by the screw extruder to obtain a ceramic-plastic composite granular material.

[0044] Therefore, it is possible to obtain a ceramic-plastic mixed raw material by mixing the ceramic raw material and the plastic raw material using a ceramic splitter material preparation equipment, and then through refining and modification, achieve precision injection molding of ceramic-plastic composite materials, so that the composite ceramic material has plastic properties, and obtain precision ceramic blanks through precision ceramic mold molding technology. Precision ceramic blanks can be produced in large quantities. Compared with traditional dry-pressed blanks, it not only improves the accuracy of the ceramic blanks, but also improves production efficiency.

[0045] Embodiment 2:

[0046] See also Figure 1-Figure 8, a material preparation device for a ceramic splitting knife, used for preparing the ceramic material of the ceramic splitting knife as described in Example 1, comprising: a fixed support 1, a preparation outer cylinder 2 is rotatably arranged at the top of the fixed support 1, a crushing inner cylinder 3 is fixedly arranged inside the preparation outer cylinder 2, an external driving mechanism 4 is arranged on one side of one end of the preparation outer cylinder 2, and the external driving mechanism 4 can drive the preparation outer cylinder 2 and the crushing inner cylinder 3 to rotate synchronously; feeding mechanisms 5 are arranged at both ends of the preparation outer cylinder 2, and a crushing inner cylinder 3 (a heater and a thermocouple are arranged inside the shell of the crushing inner cylinder 3, wherein the heater and the thermocouple are common technical means in the prior art, and in actual use, the heater and the thermocouple are connected to an external control circuit, the temperature is detected by the thermocouple, and the power of the heater is controlled according to the detected temperature of the thermocouple to control the temperature inside the crushing inner cylinder 3) A crushing stirring mechanism 6 is arranged in the center, and the crushing inner cylinder 3 includes two conveying mixing chambers 31 and a crushing chamber The crushing and mixing chamber 32, the crushing and stirring mechanism 6 includes two pressurized conveying sections 61 and a central stirring section 62, and a discharging mechanism 7 is arranged at the central bottom end of the fixed support 1; the two conveying and mixing chambers 31 are respectively arranged at the two ends of the crushing and mixing chamber 32, the pressurized conveying section 61 is arranged inside the conveying and mixing chamber 31, and the central stirring section 62 is arranged inside the crushing and mixing chamber 32; the two feeding mechanisms 5 can simultaneously supply the premixed raw materials to the two ends of the crushing inner cylinder 3, and under the conveyance of the pressurized conveying sections 61 at both ends, the raw materials at both ends of the crushing inner cylinder 3 can be conveyed to the crushing and mixing chamber 32 while being turned and mixed with the rotation of the crushing inner cylinder 3; the raw materials continuously input from both sides can be accumulated in the crushing and mixing chamber 32 and crushed under the action of gradually increasing pressure, and at the same time, the gradually crushed raw materials are fully mixed through the central stirring section 62 in coordination with the rotation of the crushing inner cylinder 3; the raw materials after mixing are discharged from the discharging mechanism 7.

[0047] The external driving mechanism 4 includes an external driving motor 41, a speed regulator 42 and a driving gear 43. A driven ring plate 21 is provided on the side of the preparation outer cylinder 2 close to the external driving mechanism 4, and the driven ring plate 21 is gear-engaged with the driving gear 43; the output shaft of the external driving motor 41 extends into the interior of the speed regulator 42, and the output shaft of the speed regulator 42 rotates coaxially with the driving gear 43. The power output by the external driving motor 41 can drive the driving gear 43 to rotate after the speed regulator 42 changes speed, and is transmitted to the driven ring plate 21 to drive the preparation outer cylinder 2 and the crushing inner cylinder 3 to rotate synchronously.

[0048] When in use, firstly, according to the ceramic material preparation method of a ceramic splitting knife in embodiment 1, ceramic raw materials and plastic raw materials are prepared in advance respectively, and then the ceramic raw materials and plastic raw materials can be fed from the two feeding mechanisms 5 on both sides respectively, or the ceramic raw materials and plastic raw materials can be premixed respectively, and then the premixed raw materials can be fed from the two feeding mechanisms 5 on both sides respectively, and the power output by the external driving motor 41 of the external driving mechanism 4 can drive the driving gear 43 to rotate after the speed change of the speed regulator 42, and is transmitted to the driven ring plate 21 through the gear meshing between the driven ring plate 21 and the driving gear 43 to drive the preparation outer cylinder 2 and the crushing inner cylinder 3 to rotate synchronously, so that the preparation outer cylinder 2 and the crushing inner cylinder 3 can be continuously rotated to The raw materials entering the crushing inner cylinder 3 are turned over and mixed; and in the process of turning over and mixing the raw materials, the raw materials at both ends of the crushing inner cylinder 3 are conveyed to the crushing mixing chamber 32 under the conveyance of the pressurized conveying sections 61 at both ends, so that the raw materials continuously input from both sides can be accumulated in the crushing mixing chamber 32 and crushed under the action of gradually increasing pressure, so that the particles in the raw materials can be effectively mixed, and at the same time, the original large particles in the raw materials can be effectively pressed and crushed through the pressure provided by the pressurized conveying section 61, and the gradually crushed raw materials can be fully mixed in coordination with the rotation of the crushing inner cylinder 3 in the central stirring section 62, so as to effectively ensure the mixing uniformity of the ceramic materials for producing ceramic splitters at a lower particle size.

[0049] Embodiment three:

[0050] See also Figure 1-Figure 8 The difference from the above-mentioned embodiment 2 is that the crushing and stirring mechanism 6 includes a stirring main shaft 63, and a stirring auger 64 is arranged outside the stirring main shaft 63 and inside the conveying and mixing chamber 31, and the outer end of the stirring auger 64 is in close contact with the conveying and mixing chamber 31; under the conveyance of the two stirring auger 64, the raw materials at both ends of the crushing inner cylinder 3 can be continuously conveyed to the crushing and mixing chamber 32.

[0051] A plurality of stirring rods 65 are arranged outside the stirring main shaft 63 and inside the conveying mixing chamber 31 , and a stirring blade 66 is arranged at one end of each stirring rod 65 away from the stirring main shaft 63 ; the outer end of the stirring blade 66 connected to the longest stirring rod 65 is in contact with the inner wall of the crushing mixing chamber 32 .

[0052] The feeding mechanism 5 includes a delivery box 51, an open feeding barrel 52 and a feeding auger 53. One end of the open feeding barrel 52 is connected to the end of the crushing inner barrel 3, and the other end of the open feeding barrel 52 is arranged directly below the bottom opening of the delivery box 51; the feeding auger 53 is arranged inside the open feeding barrel 52, and the feeding auger 53 can provide power for transporting raw materials from one end of the open feeding barrel 52 away from the crushing inner barrel 3 to the end of the crushing inner barrel 3.

[0053] The transmission shafts of the two feeding augers 53 are respectively fixed between the two ends of the stirring main shaft 63; the spiral pitches of the two feeding augers 53 are consistent, and the spiral pitches of the two stirring augers 64 are consistent, and the spiral pitch of the two feeding augers 53 is greater than the spiral pitch of the two stirring augers 64; the spiral directions of the feeding augers 53 and the stirring augers 64 located on both sides of the crushing mixing chamber 32 are opposite. When the feeding augers 53 and the stirring augers 64 rotate synchronously, raw materials can be input into the crushing mixing chamber 32 from both sides of the crushing mixing chamber 32 at the same time.

[0054] Therefore, in specific use, on both sides of the crushing and mixing chamber 32, inside the two feeding mechanisms 5, the raw materials transported to the delivery box 51 can first fall into the end of the open feeding cylinder 52 close to the delivery box 51, and then, under the conveying action of the feeding auger 53, the raw materials are conveyed from the end of the open feeding cylinder 52 away from the crushing inner cylinder 3 to the end of the crushing inner cylinder 3, and then, through the setting of the stirring auger 64, since the outer end of the stirring auger 64 is in close contact with the conveying and mixing chamber 31, the raw materials at both ends of the crushing inner cylinder 3 can be continuously conveyed to the crushing and mixing chamber 32 under the conveying of the two stirring auger 64, and can be conveyed through The spiral directions of the feeding augers 53 and the stirring augers 64 located on both sides of the crushing and mixing chamber 32 are opposite. When the feeding augers 53 and the stirring augers 64 rotate synchronously, the raw materials can be simultaneously input into the crushing and mixing chamber 32 from both sides of the crushing and mixing chamber 32, and the spiral pitch of the two feeding augers 53 is greater than the spiral pitch of the two stirring augers 64. The smaller spiral pitch of the stirring augers 64 can provide a greater conveying thrust to the raw materials in the conveying process, effectively ensuring that the raw materials accumulated inside the crushing and mixing chamber 32 can be crushed under the action of gradually increasing pressure, thereby providing a more effective mixing effect.

[0055] Embodiment 4:

[0056] See also Figure 1-Figure 8 The difference from the above-mentioned embodiment 2 and embodiment 3 is that the preparation outer cylinder 2 and the crushing inner cylinder 3 are connected and fixed by a plurality of bolts, an external discharge port 22 is opened in the center of the preparation outer cylinder 2, and an internal discharge port 33 is opened in the center of the crushing inner cylinder 3. The external discharge port 22 and the internal discharge port 33 are aligned, and the diameter of the external discharge port 22 is larger than the diameter of the internal discharge port 33, thereby reducing the probability of the material discharged from the internal discharge port 33 entering the preparation outer cylinder 2 and the crushing inner cylinder 3, and effectively ensuring the discharge of the mixed raw materials.

[0057] A sealing mechanism 8 is arranged between the preparation outer cylinder 2 and the crushing inner cylinder 3, and the sealing mechanism 8 includes two sealing arc plates 81 and two telescopic rod groups 82. The inner and outer sides of the two sealing arc plates 81 are respectively slidably connected with the inner wall of the preparation outer cylinder 2 and the outer wall of the crushing inner cylinder 3, and the movable end of the telescopic rod of each telescopic rod group 82 is connected and fixed to the sealing arc plate 81; when each telescopic rod of the two telescopic rod groups 82 is synchronously extended to the longest state, the external discharge port 22 and the internal discharge port 33 are both closed by the sealing arc plate 81; when each telescopic rod of the two telescopic rod groups 82 is synchronously shortened to the shortest state, the distance between the two sealing arc plates 81 is the largest, and the external discharge port 22 and the internal discharge port 33 are both open.

[0058] The discharge mechanism 7 includes a connecting tube 71 and a guiding tube 72. One end of the connecting tube 71 is connected to the guiding tube 72, and the other end of the connecting tube 71 is open. When the external discharge port 22 and the internal discharge port 33 are moved to the top of the connecting tube 71 by the drive of the external driving mechanism 4, the arc blocking plate 81 can open the external discharge port 22 and the internal discharge port 33, and the mixed raw materials falling into the connecting tube 71 are discharged through the guidance of the guiding tube 72.

[0059] Thus, through the setting of the blocking mechanism 8, the external discharge port 22 and the internal discharge port 33 can be blocked respectively through the two sides of the two blocking arc plates 81, and the two blocking arc plates 81 are moved away from each other under the action of the corresponding telescopic rod group 82, so that the external discharge port 22 and the internal discharge port 33 can be opened synchronously, and then under the drive of the partial driving mechanism 4, when the external discharge port 22 and the internal discharge port 33 move to the top of the connecting tube 71, the external discharge port 22 and the internal discharge port 33 are opened, so that the mixed raw materials can fall completely into the interior of the connecting tube 71 under the action of gravity and the stirring blades 66 connected to the longest stirring rod 65, and finally be discharged through the guidance of the guide tube 72.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing ceramic materials for a ceramic splitting knife, characterized in that: The steps include: Prepare raw materials of aluminum oxide, zirconium oxide, chromium oxide and yttrium oxide respectively, and then mix the raw materials of aluminum oxide, zirconium oxide, chromium oxide and yttrium oxide to prepare ceramic raw materials; Prepare polypropylene, polyethylene, paraffin, dispersant, adhesive, and lubricant raw materials respectively, and then mix the polypropylene, polyethylene, paraffin, dispersant, adhesive, and lubricant raw materials to prepare plastic raw materials; The ceramic raw material and the plastic raw material are heated and mixed by a material preparation device using a ceramic splitter to obtain a ceramic-plastic mixed raw material; Mixing the ceramic-plastic raw material in an internal mixer to obtain a ceramic-plastic composite raw material; The ceramic-plastic composite raw material is fed into a screw extruder, and after being plasticized by heating, the ceramic-plastic composite raw material is extruded and cut by the screw extruder to obtain a ceramic-plastic composite granular material.

2. A material preparation device for a ceramic splitting knife, used for preparing the ceramic material of the ceramic splitting knife as claimed in claim 1, characterized in that: include: A fixed support (1), wherein a preparation outer cylinder (2) is rotatably disposed at the top end of the fixed support (1), a crushing inner cylinder (3) is fixedly disposed inside the preparation outer cylinder (2), and an external driving mechanism (4) is disposed on one side of one end of the preparation outer cylinder (2), and the external driving mechanism (4) is capable of driving the preparation outer cylinder (2) and the crushing inner cylinder (3) to rotate synchronously; Both ends of the preparation outer cylinder (2) are provided with a feeding mechanism (5); a crushing and stirring mechanism (6) is provided in the center of the crushing inner cylinder (3); the crushing inner cylinder (3) comprises two conveying and mixing chambers (31) and a crushing and mixing chamber (32); the crushing and stirring mechanism (6) comprises two pressurized conveying sections (61) and a central stirring section (62); and a discharge mechanism (7) is provided at the central bottom end of the fixed support (1); The two conveying and mixing chambers (31) are respectively arranged at two ends of the crushing and mixing chamber (32), the pressurized conveying section (61) is arranged inside the conveying and mixing chamber (31), and the central stirring section (62) is arranged inside the crushing and mixing chamber (32); The two feeding mechanisms (5) can simultaneously supply premixed raw materials to both ends of the crushing inner cylinder (3); under the conveying of the pressurized conveying sections (61) at both ends, the raw materials at both ends of the crushing inner cylinder (3) can be conveyed to the crushing mixing chamber (32) while being turned and mixed as the crushing inner cylinder (3) rotates; The raw materials continuously input from both sides can be accumulated inside the crushing and mixing chamber (32) and crushed under the action of gradually increasing pressure, and at the same time, the gradually crushed raw materials are fully mixed by the central stirring section (62) in coordination with the rotation of the crushing inner cylinder (3); The mixed raw materials are discharged from the discharge mechanism (7).

3. The material preparation device for a ceramic splitting knife according to claim 2, characterized in that: The external driving mechanism (4) comprises an external driving motor (41), a speed regulator (42) and a driving gear (43); a driven ring plate (21) is provided on a side of the preparation outer cylinder (2) close to the external driving mechanism (4); the driven ring plate (21) is in gear meshing engagement with the driving gear (43); The output shaft of the external drive motor (41) extends into the interior of the speed regulator (42), and the output shaft of the speed regulator (42) rotates coaxially with the drive gear (43). The power output by the external drive motor (41) can drive the drive gear (43) to rotate after the speed regulator (42) changes speed, and is transmitted to the driven ring plate (21) to drive the preparation outer cylinder (2) and the crushing inner cylinder (3) to rotate synchronously.

4. The material preparation device for a ceramic splitting knife according to claim 2, characterized in that: The crushing and stirring mechanism (6) comprises a stirring main shaft (63), a stirring auger (64) is arranged outside the stirring main shaft (63) and inside the conveying and mixing chamber (31), and the outer end of the stirring auger (64) is in close contact with the conveying and mixing chamber (31); Under the conveying of the two stirring augers (64), the raw materials at both ends of the crushing inner cylinder (3) can be continuously conveyed to the crushing mixing chamber (32).

5. The material preparation device for a ceramic splitting knife according to claim 4, characterized in that: A plurality of stirring rods (65) are arranged outside the stirring main shaft (63) and inside the conveying mixing chamber (31), and a stirring blade (66) is arranged at one end of each stirring rod (65) away from the stirring main shaft (63); The outer end of the stirring blade (66) connected to the longest stirring rod (65) is in contact with the inner wall of the crushing and mixing chamber (32).

6. The material preparation device for a ceramic splitting knife according to claim 5, characterized in that: The feeding mechanism (5) comprises a delivery box (51), an open feeding cylinder (52) and a feeding auger (53), one end of the open feeding cylinder (52) is connected to the end of the crushing inner cylinder (3), and the other end of the open feeding cylinder (52) is arranged directly below the bottom opening of the delivery box (51); The feeding auger (53) is arranged inside the open feeding cylinder (52), and the feeding auger (53) can provide power to transport the raw materials from one end of the open feeding cylinder (52) away from the crushing inner cylinder (3) to the end of the crushing inner cylinder (3).

7. The material preparation device for a ceramic splitting knife according to claim 6, characterized in that: The transmission shafts of the two feeding augers (53) are respectively fixed between the two ends of the stirring main shaft (63); The spiral pitches of the two feeding augers (53) are consistent, the spiral pitches of the two stirring augers (64) are consistent, and the spiral pitch of the two feeding augers (53) is greater than the spiral pitch of the two stirring augers (64); The feeding auger (53) and the stirring auger (64) located on both sides of the crushing and mixing chamber (32) have opposite spiral directions. When the feeding auger (53) and the stirring auger (64) rotate synchronously, raw materials can be simultaneously input into the crushing and mixing chamber (32) from both sides of the crushing and mixing chamber (32).

8. The material preparation equipment for a ceramic splitting knife according to claim 2, characterized in that: The preparation outer cylinder (2) and the crushing inner cylinder (3) are connected and fixed by a plurality of bolts; an external discharge port (22) is provided at the center of the preparation outer cylinder (2), and an internal discharge port (33) is provided at the center of the crushing inner cylinder (3); the external discharge port (22) and the internal discharge port (33) are aligned, and the diameter of the external discharge port (22) is greater than the diameter of the internal discharge port (33).

9. The material preparation device for a ceramic splitting knife according to claim 8, characterized in that: A blocking mechanism (8) is provided between the preparation outer cylinder (2) and the crushing inner cylinder (3), and the blocking mechanism (8) comprises two blocking arc plates (81) and two telescopic rod groups (82), the inner and outer sides of the two blocking arc plates (81) are respectively slidably connected to the inner wall of the preparation outer cylinder (2) and the outer wall of the crushing inner cylinder (3), and the movable end of the telescopic rod of each telescopic rod group (82) is fixedly connected to the blocking arc plate (81); When each telescopic rod of the two telescopic rod groups (82) is synchronously extended to the longest state, the external discharge port (22) and the internal discharge port (33) are both closed by the arc blocking plate (81); When each telescopic rod of the two telescopic rod groups (82) is synchronously shortened to the shortest state, the distance between the two arc blocking plates (81) is the largest, and the external discharge port (22) and the internal discharge port (33) are both open.

10. The material preparation device for a ceramic splitting knife according to claim 9, characterized in that: The discharge mechanism (7) comprises a connecting tube (71) and a guiding tube (72); one end of the connecting tube (71) is connected to the guiding tube (72), and the other end of the connecting tube (71) is open. When the external discharge port (22) and the internal discharge port (33) are moved to the top of the connecting tube (71) by the driving of the external driving mechanism (4), the arc blocking plate (81) can open the external discharge port (22) and the internal discharge port (33), and the raw materials that have been mixed and have fallen into the connecting tube (71) are discharged through the guidance of the guiding tube (72).

Images