Hard alloy preparation process and processing equipment thereof

Abstract

The invention discloses a hard alloy preparation technology and processing equipment thereof, and relates to the field of hard alloy preparation.The hard alloy preparation technology comprises a raw material pretreatment device, a wet grinding device, a pressing device, a sintering device and a surface treatment device.The wet grinding device comprises a wet grinding barrel, a discharging hole is formed in the wet grinding barrel, and the discharging hole is provided with a plugging butt joint mechanism in a matched mode; a side edge butt joint mechanism and a shaking mechanism are arranged at the end part of the wet grinding cylinder; a plug is mounted in the discharging hole in a matched mode, a threaded groove is formed in the plug, the plugging butt joint mechanism comprises a first driving motor, the first driving motor is connected with a matching column, a threaded column is vertically connected to the matching column in an inserted mode, the side edge butt joint mechanism comprises an end cover coaxially arranged with the end of the wet grinding barrel, a conveying rod is connected to the center of the end cover in an inserted mode, and a spray head is connected to the end of the conveying rod. And the blanking operation after wet grinding is facilitated through the plugging butt joint mechanism, and meanwhile, the feeding of the wet grinding cylinder and the cleaning operation of the interior of the wet grinding cylinder after wet grinding are facilitated through the side edge butt joint mechanism.

Description

Technical Field

[0001] The present invention relates to the field of cemented carbide preparation, and specifically relates to a cemented carbide preparation process and its processing equipment. Background Art

[0002] Cemented carbide is an alloy material made of refractory metal hard compounds and binding metals through powder metallurgy technology. It has high hardness, high wear resistance, and good red hardness, and is mainly used in fields such as cutting tools, die manufacturing, and mining tools. The preparation of cemented carbide mainly involves wet grinding of raw material powders to ensure the uniformity of hard phase powders, thereby ensuring the subsequent sintering quality.

[0003] Existing powder wet grinding equipment has problems in loading and unloading during wet grinding of powders, and it is difficult to clean the alloy powders remaining in the wet grinding cylinder after wet grinding. Summary of the Invention

[0004] The purpose of the present invention is to provide a cemented carbide preparation process and its processing equipment to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A cemented carbide preparation and processing equipment includes a raw material pretreatment device, a wet grinding device, a pressing device, a sintering device, and a surface treatment device. The wet grinding device includes a wet grinding cylinder, the wet grinding cylinder is connected to a power motor, and an outlet hole is provided on the wet grinding cylinder. The outlet hole is provided with a plugging and docking mechanism in cooperation, and a side docking mechanism and a shaking mechanism are provided at the end of the wet grinding cylinder.

[0006] A plug is installed in the outlet hole in cooperation, and a threaded groove is provided on the plug. The plugging and docking mechanism includes a driving motor I, the driving motor I is connected to a matching column, a threaded column is vertically inserted into the matching column, and the threaded column is installed for lifting.

[0007] The side docking mechanism includes an end cover coaxially arranged with the end of the wet grinding cylinder. The end cover is horizontally movably installed, a conveying rod is inserted into the center of the end cover, a spray head is connected to the end of the conveying rod, the conveying rod and the spray head move back and forth along the axis direction of the wet grinding cylinder, the conveying rod is connected to a storage cylinder, and a solvent for wet grinding is stored in the storage cylinder.

[0008] As a further scheme of the present invention: a limiting net is provided inside the wet grinding cylinder at the outlet hole part, a matching groove for cooperating with the limiting net is provided inside the plug, docking protrusions are evenly arranged on the edge of the plug, the plug is installed in the outlet hole in cooperation through the docking protrusions, and electric telescopic columns are symmetrically arranged at the outlet hole part of the wet grinding cylinder. The electric telescopic columns are connected to limiting plates, and the limiting plates pass through the outlet hole and cooperate with the plug.

[0009] As a further solution of the present invention: The side docking mechanism further includes a docking sleeve coaxially installed with the end cover. The docking sleeve is rotatably installed on the mating seat. The mating seat is connected to a support frame. The end of the wet grinding cylinder is connected to an upper frame. The support frame is connected to the upper frame through a shaking mechanism. A lower frame is arranged on the lower side of the upper frame. A fixed frame is arranged on the support frame. Squeezing rollers are symmetrically and rotatably installed on both sides of the conveying rod on the fixed frame. One of the squeezing rollers is connected to a second driving motor. A docking head is further arranged on the end cover. The docking head is hermetically matched with the opening at the end of the wet grinding cylinder.

[0010] As a further solution of the present invention: A first mating ring is arranged at one end of the wet grinding cylinder where the end cover is located. A first clamping groove and a second clamping groove are respectively arranged on the first mating ring. Right-angle frames are evenly arranged in a ring on the end cover. A second telescopic cylinder and a second supporting ball are arranged at the position corresponding to the first clamping groove on the right-angle frame. The second supporting ball is matched with the first clamping groove. A first telescopic cylinder and a first supporting ball are arranged at the position corresponding to the second clamping groove on the right-angle frame. The first supporting ball is matched with the second clamping groove. An extension frame is fixedly installed at the axial position of the end cover. A rotary motor is arranged at the end of the extension frame. A second swing frame is arranged on the output shaft of the rotary motor. A feeding pipe is arranged at the end of the second swing frame.

[0011] As a further solution of the present invention: The shaking mechanism includes a connecting rod arranged between the upper frames and a first swing frame rotatably installed with the upper frames. A second telescopic motor is arranged between the connecting rod and the first swing frame. Supporting rollers are symmetrically and rotatably installed on the first swing frame. An annular groove is arranged on the outer circle of the wet grinding cylinder. The supporting rollers are in contact installation with the annular groove. Horizontal cylinders are symmetrically arranged on the upper frames. A sliding frame is connected to the end of the horizontal cylinder. Guide rails are arranged on the upper frames. The sliding frame is slidably installed with the guide rails. A third telescopic motor is rotatably installed between the support frame and the sliding frame.

[0012] As a further solution of the present invention: The plugging and docking mechanism further includes slide rails arranged between the upper frames. The slide rails are symmetrically arranged. A first moving frame is slidably installed between the slide rails. The first driving motor is fixedly installed with the first moving frame. A first telescopic motor is arranged on the first moving frame. The first telescopic motor is connected to a connecting curved rod. A clamping ring is arranged at the end of the connecting curved rod. The clamping ring is annularly clamped with the threaded column.

[0013] As a further solution of the present invention: a solvent separation mechanism is provided between the upper frame and the lower frame. The solvent separation mechanism includes a support cylinder, a separation cylinder is rotatably installed in the support cylinder, a docking pipe is arranged at the bottom of the support cylinder, and the docking pipe is connected to the storage cylinder through a conduit. A stirring roller is rotatably installed at the center of the separation cylinder, the stirring roller is connected to a third driving motor, a fourth driving motor is fixedly arranged at the end of the support cylinder, the fourth driving motor is connected to a driving gear, and an external gear ring is arranged at the end of the separation cylinder. The driving gear and the external gear ring are meshed with each other.

[0014] As a further solution of the present invention: the bottom of the support cylinder is fixedly installed on a rotating plate, connecting plates are symmetrically arranged between the lower frames, the rotating plate is rotatably installed with the connecting plates through a connecting rotating shaft, and locking pins are arranged between the four corners of the rotating plate and the connecting plates. A matching rack is arranged on the outside of the support cylinder, clamping grooves are arranged on both sides of the matching rack, a second moving frame is slidably clamped in the clamping grooves, a matching gear is rotatably installed on the second moving frame, the matching gear is connected to a fifth driving motor, the matching gear and the matching rack are meshed with each other, a linkage plate is connected to the second moving frame, a second matching ring is arranged at the end of the linkage plate, and the second matching ring is annularly clamped with the end of the separation cylinder.

[0015] Based on the above cemented carbide preparation process of a cemented carbide preparation and processing device, the following steps are included: S1. Raw material preparation, screening and preprocessing the raw material powder through a raw material pretreatment device to ensure that the alloy powder particles are uniform and free of impurities; S2. Mixing and wet grinding, mixing and fully wet grinding the alloy powder through a wet grinding device, forming a uniform slurry and then separating to obtain the alloy powder; S3. Compression molding, cold-pressing the alloy powder filled into the mold through a pressing device to obtain a green product; S4. Sintering, pre-sintering and high-temperature sintering the pressed green body through a sintering device. In the pre-sintering stage, the forming agent is removed at a temperature of 600-800°C to initially improve the strength of the green body. In the sintering stage, it is heated to 1400-1600°C in a vacuum or hydrogen atmosphere, the alloy powder melts to form a liquid phase, densification is achieved and it lasts for several hours to obtain the finished product; S5. Surface treatment, polishing and adding a coating to the surface of the sintered finished product through a surface treatment device.

[0016] Compared with the prior art, the beneficial effects of the present invention are: (1) The sealing or opening of the end of the wet grinding cylinder is achieved through the plugging and docking mechanism, facilitating the addition of alloy powder into the wet grinding cylinder. Meanwhile, a conveying rod and a nozzle are arranged on the axis of the end cover. In combination with the storage cylinder, the wet grinding solvent can be fed into the wet grinding cylinder. After the wet grinding is completed, the conveying rod and the nozzle move back and forth to inject the solvent into the wet grinding cylinder, flushing out all the residual alloy powder in the wet grinding cylinder. The alloy powder and the solvent leave the wet grinding cylinder through the discharge hole.

[0017] (2) A plug is arranged in the discharge hole, and a mating groove that cooperates with the limiting net is arranged in the plug. When the plug is inserted into the discharge hole, the mating groove cooperates with the limiting net, and the inner wall of the wet grinding cylinder forms a smooth cylindrical structure, thus avoiding the wear and damage of the limiting net by the steel balls during wet grinding. After the plug is mated with the discharge hole, the plug is limited by the electric telescopic column and the limiting plate, preventing the plug from disengaging or moving around at the discharge hole during the rotation of the wet grinding cylinder and avoiding the leakage of powder and solvent.

[0018] (3) The end cover cooperates with the edge of the wet grinding cylinder. The conveying rod enters or exits the docking sleeve through the pressing roller, driving the nozzle at the end to move back and forth inside the wet grinding cylinder, thereby adding solvent into the wet grinding cylinder or flushing the inside of the wet grinding cylinder with the solvent. The end cover part cooperates with the end of the wet grinding cylinder through the docking head to complete the sealing of the opening part at the end of the wet grinding cylinder.

[0019] (4) The end cover realizes the cooperation with the second clamping groove and the first clamping groove on the first mating ring through the right-angle frame, the first telescopic cylinder, the first supporting ball, the second telescopic cylinder, and the second supporting ball arranged on the edge, and then the clamping of the end cover and the wet grinding cylinder. The connection methods of the first supporting ball and the second supporting ball with the first mating ring not only achieve a reliable connection between the end cover and the wet grinding cylinder but also ensure the rotational wet grinding operation of the wet grinding cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 is Figure 1 the enlarged structural schematic diagram at A in

[0022] Figure 3 It is a schematic diagram of the cooperation between the plug and the discharge hole part in the present invention.

[0023] Figure 4 It is a separated structural schematic diagram of the plug and the discharge hole part in the present invention.

[0024] Figure 5 It is a schematic diagram of the structure of the plugging and docking mechanism in the present invention.

[0025] Figure 6 This is the structural schematic diagram of the side docking mechanism in the present invention.

[0026] Figure 7 This is the installation schematic diagram of the nozzle in the present invention.

[0027] Figure 8 This is the installation schematic diagram of the shaking mechanism in the present invention.

[0028] Figure 9 This is the enlarged structural schematic diagram at position B in the present invention.

[0029] Figure 10 This is the structural schematic diagram of the solvent separation mechanism in the present invention.

[0030] Figure 11 This is the structural schematic diagram of the solvent separation mechanism from another perspective in the present invention.

[0031] Figure 12 It is Figure 11 the enlarged structural schematic diagram at position C.

[0032] Figure 13 It is Figure 11 the enlarged structural schematic diagram at position D.

[0033] In the figure: 1. Lower frame; 10. Upper frame; 11. Guide rail; 12. Sliding frame; 13. Horizontal cylinder; 14. Support frame; 2. Wet grinding cylinder; 20. First mating ring; 21. First clamping groove; 22. Second clamping groove; 23. Right-angle frame; 24. First telescopic cylinder; 240. First support ball; 25. Second telescopic cylinder; 250. Second support ball; 200. Discharge hole; 201. Plug; 2010. Fitting groove; 202. Threaded groove; 203. Docking projection; 204. Electric telescopic column; 205. Limiting plate; 206. Limiting net; 3. Sealing and docking mechanism; 30. Slide rail; 31. First moving frame; 32. Threaded column; 33. First driving motor; 34. First telescopic motor; 35. Connecting curved rod; 36. Clamping ring; 37. Fitting column; 4. Shaking mechanism; 40. Connecting rod; 41. Second telescopic motor; 42. First swinging frame; 43. Support roller; 44. Annular groove; 45. Third telescopic motor; 5. Side docking mechanism; 50. End cover; 51. Fitting seat; 52. Docking sleeve; 520. Docking head; 53. Extension frame; 54. Rotating motor; 55. Second swinging frame; 56. Feeding pipe; 57. Fixed frame; 58. Extrusion roller; 59. Second driving motor; 510. Conveyor rod; 5100. Sprayer; 6. Solvent separation mechanism; 60. Connecting plate; 61. Rotating plate; 62. Locking pin; 63. Connecting rotating shaft; 64. Support cylinder; 65. Separation cylinder; 66. Third driving motor; 67. Stirring roller; 68. Fourth driving motor; 69. Driving gear; 610. External gear ring; 611. Docking pipe; 613. Clamping slot; 614. Second moving frame; 615. Fifth driving motor; 616. Fitting rack; 617. Fitting gear; 618. Linking plate; 619. Second mating ring; 7. Storage cylinder. Detailed implementation mode

[0034] The technical solution of the present invention will be further described in detail below in combination with the specific implementation mode.

[0035] As Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7As shown, a cemented carbide preparation and processing equipment includes a raw material pretreatment device, a wet grinding device, a pressing device, a sintering device, and a surface treatment device. The wet grinding device includes a wet grinding cylinder 2, which is connected to a power motor. The wet grinding cylinder 2 is provided with a discharge hole 200, and the discharge hole 200 is provided with a plugging docking mechanism 3. The end of the wet grinding cylinder 2 is provided with a side docking mechanism 5 and a shaking mechanism 4. A plug 201 is installed in the discharge hole 200, and a thread groove 202 is provided on the plug 201. The plugging docking mechanism 3 includes a driving motor 33, and the driving motor 33 is connected to a matching column 37. A threaded column 32 is vertically inserted on the matching column 37, and the threaded column 32 is installed in a lifting manner. The side docking mechanism 5 includes an end cover 50 coaxially arranged with the end of the wet grinding cylinder 2, the end cover 50 is horizontally movably installed, a conveying rod 510 is inserted in the center of the end cover 50, the end of the conveying rod 510 is connected to a nozzle 5100, the conveying rod 510 and the nozzle 5100 move back and forth along the axial direction of the wet grinding cylinder 2, the conveying rod 510 is connected to a storage cylinder 7, and the storage cylinder 7 stores a solvent for wet grinding.

[0036] Specifically, the end of the wet grinding cylinder 2 is sealed or opened by blocking the docking mechanism 3, so as to facilitate the addition of alloy powder into the wet grinding cylinder 2. At the same time, a conveying rod 510 and a nozzle 5100 are arranged at the axial position of the end cover 50, and the wet grinding solvent can be delivered into the wet grinding cylinder 2 in combination with the storage cylinder 7, and after the wet grinding is completed, the solvent is injected into the wet grinding cylinder 2 by the conveying rod 510 and the nozzle 5100 that move back and forth, so as to flush out all the alloy powder remaining in the wet grinding cylinder 2. The alloy powder and the solvent leave the wet grinding cylinder 2 through the discharge hole 200.

[0037] Further, such as Figure 3 , Figure 4 As shown, the wet grinding cylinder 2 is provided with a limiting net 206 on the inner side of the discharge hole 200, and the inner side of the plug 201 is provided with a matching groove 2010 that cooperates with the limiting net 206. The edge of the plug 201 is evenly provided with docking protrusions 203, and the plug 201 is installed in cooperation with the discharge hole 200 through the docking protrusions 203. The wet grinding cylinder 2 is symmetrically provided with electric telescopic columns 204 at the discharge hole 200, and the electric telescopic columns 204 are connected to the limiting plate 205, and the limiting plate 205 passes through the discharge hole 200 and cooperates with the plug 201.

[0038] Specifically, a limiting net 206 is provided at the discharge hole 200. The purpose is to prevent the steel balls participating in wet grinding in the wet grinding cylinder 2 from leaving the wet grinding cylinder 2 at the discharge hole 200, and at the same time effectively increases the size of the discharge hole 200, thereby improving the discharge speed. A plug 201 is provided in the discharge hole 200, and a mating groove 2010 that cooperates with the limiting net 206 is provided in the plug 201. When the plug 201 is inserted into the discharge hole 200, the mating groove 2010 cooperates with the limiting net 206, and the inner wall of the wet grinding cylinder 2 forms a smooth cylindrical structure, thereby preventing the steel balls from wearing and damaging the limiting net 206 during wet grinding. After the plug 201 and the discharge hole 200 are mated, the plug 201 is limited by the electric telescopic column 204 and the limiting plate 205 to prevent the plug 201 from detaching from or moving around at the discharge hole 200 during the rotation of the wet grinding cylinder 2, and to prevent powder and solvent leakage.

[0039] Further, as Figure 1 , Figure 6 , Figure 7 shown, the side docking mechanism 5 further includes a docking sleeve 52 coaxially installed with the end cap 50. The docking sleeve 52 is rotatably installed on the mating seat 51. The mating seat 51 is connected to a support frame 14. The end of the wet grinding cylinder 2 is connected to an upper frame 10. The support frame 14 is connected to the upper frame 10 through a shaking mechanism 4. A lower frame 1 is provided on the lower side of the upper frame 10. A fixing frame 57 is provided on the support frame 14. Pressing rollers 58 are symmetrically and rotatably installed on both sides of the conveying rod 510 on the fixing frame 57. One of the pressing rollers 58 is connected to a second driving motor 59. A docking head 520 is further provided on the end cap 50. The docking head 520 is hermetically mated with the end opening of the wet grinding cylinder 2.

[0040] Specifically, the end cap 50 and the edge of the wet grinding cylinder 2 cooperate with each other. The conveying rod 510 enters or exits the docking sleeve 52 through the pressing roller 58, thereby driving the nozzle 5100 at the end to move back and forth inside the wet grinding cylinder 2, and then adding solvent into the wet grinding cylinder 2 or flushing the inside of the wet grinding cylinder 2 with the solvent. The end cap 50 is mated with the end of the wet grinding cylinder 2 through the docking head 520 to complete the sealing of the end opening part of the wet grinding cylinder 2.

[0041] Further, as Figure 2As shown in the figure, a mating ring one 20 is provided at one end of the wet grinding cylinder 2 located at the end cover 50. A clamping groove one 21 and a clamping groove two 22 are respectively provided on the mating ring one 20. Right-angle brackets 23 are evenly arranged in a ring on the end cover 50. At the position corresponding to the clamping groove one 21 on the right-angle bracket 23, a telescopic cylinder two 25 and a supporting ball two 250 are provided. The supporting ball two 250 cooperates with the clamping groove one 21. At the position corresponding to the clamping groove two 22 on the right-angle bracket 23, a telescopic cylinder one 24 and a supporting ball one 240 are provided. The supporting ball one 240 cooperates with the clamping groove two 22. An extension bracket 53 is fixedly installed at the axis position of the end cover 50. A rotating motor 54 is provided at the end of the extension bracket 53. A swinging bracket two 55 is provided on the output shaft of the rotating motor 54. A feeding pipe 56 is provided at the end of the swinging bracket two 55.

[0042] Specifically, the end cover 50 realizes the cooperation with the clamping groove 613 two and the clamping groove 613 one on the mating ring one 20 through the right-angle brackets 23, the telescopic cylinder one 24, the supporting ball one 240, the telescopic cylinder two 25, and the supporting ball two 250 provided at the edge. Furthermore, the clamping between the end cover 50 and the wet grinding cylinder 2 is achieved. The connection methods of the supporting ball one 240 and the supporting ball two 250 with the mating ring one 20 not only realize the reliable connection between the end cover 50 and the wet grinding cylinder 2 but also ensure the rotational wet grinding operation of the wet grinding cylinder 2 at the same time.

[0043] More specifically, after the end cover 50 is separated from the end part of the wet grinding cylinder 2, the swinging bracket two 55 can be driven to rotate by the rotating motor 54, so that the feeding pipe 56 points to the opening part at the end of the wet grinding cylinder 2, thereby performing the feeding operation of the alloy powder.

[0044] Further, as Figure 8 、 Figure 9 shown, the shaking mechanism 4 includes a connecting rod 40 arranged between the upper frames 10 and a swinging bracket one 42 rotatably installed between the upper frames 10. A telescopic motor two 41 is provided between the connecting rod 40 and the swinging bracket one 42. Support rollers 43 are symmetrically and rotatably installed on the swinging bracket one 42. An annular groove 44 is provided on the outer ring of the wet grinding cylinder 2. The support rollers 43 are in contact installation with the annular groove 44. Horizontal cylinders 13 are symmetrically provided on the upper frames 10. A sliding bracket 12 is connected to the end of the horizontal cylinder 13. A guide rail 11 is provided on the upper frames 10. The sliding bracket 12 is slidably installed with the guide rail 11. A telescopic motor three 45 is rotatably installed between the support frame 14 and the sliding bracket 12.

[0045] Specifically, in order to improve the wet grinding effect and increase the feeding speed of the alloy powder inside the wet grinding cylinder 2 during feeding, a telescopic motor 3 45 is provided between the support frame 14 and the sliding frame 12, and the telescopic motor 3 45 is used to control the end of the wet grinding cylinder 2 to swing up and down. It should be noted that the end of the wet grinding cylinder 2 close to the power motor is connected with a universal joint, so that the wet grinding cylinder 2 does not need to be separated from the power motor when swinging up and down.

[0046] More specifically, in order to ensure stable support for the wet grinding cylinder 2 during wet grinding, an annular groove 44 and a swinging frame 42 are provided. When the wet grinding cylinder 2 is controlled to swing up and down, the swing frame 42 is controlled by the telescopic motor 41 to disengage from the annular groove 44 and maintain an inclined posture to avoid interference with the wet grinding cylinder 2 swinging up and down. When the wet grinding cylinder 2 is wet grinding, the annular groove 44 is stably supported by the swing frame 42 and the support roller 43.

[0047] Further, such as Figure 5 As shown, the blocking docking mechanism 3 also includes a slide rail 30 arranged between the upper frame 10, the slide rail 30 is symmetrically arranged, a moving frame 31 is slidably installed between the slide rails 30, the drive motor 33 is fixedly installed between the moving frame 31, a telescopic motor 34 is arranged on the moving frame 31, the telescopic motor 34 is connected to a connecting bent rod 35, and a clamping ring 36 is arranged at the end of the connecting bent rod 35, and the clamping ring 36 is annularly clamped with the threaded column 32.

[0048] Specifically, the connecting bent rod 35 and the clamping ring 36 are driven to move up and down by the telescopic motor 34, thereby controlling the threaded column 32 to move up and down, thereby controlling the threaded column 32 and the threaded groove 202 on the plug 201 to dock with each other and achieve threaded cooperation, so that the plug 201 can detach from or enter the discharge hole 200.

[0049] Further, such as Figure 10 As shown, a solvent separation mechanism 6 is arranged between the upper frame 10 and the lower frame 1, and the solvent separation mechanism 6 includes a support cylinder 64, in which a separation cylinder 65 is rotatably installed, a docking tube 611 is arranged at the bottom of the support cylinder 64, and the docking tube 611 is connected to the storage cylinder 7 through a conduit, a stirring roller 67 is rotatably installed at the center of the separation cylinder 65, and the stirring roller 67 is connected to a driving motor three 66, a driving motor four 68 is fixedly arranged at the end of the support cylinder 64, and the driving motor four 68 is connected to a driving gear 69, and an outer gear ring 610 is arranged at the end of the separation cylinder 65, and the driving gear 69 and the outer gear ring 610 are meshed with each other.

[0050] Specifically, the powder and the solvent after the wet grinding fall into the separation cylinder 65 together. The driving motor four 68 and the driving gear 69 are combined to drive the separation cylinder 65 to rotate in the support cylinder 64, and the separation between the alloy powder and the solvent is realized in a mode similar to the dehydration of a washing machine. For the remaining solvent, the stirring roller 67 and the driving motor three 66 are used to stir and heat-dry it, and an electric heating wire is arranged in the stirring roller 67 for heating operation.

[0051] Further, as Figure 11 , Figure 12 , Figure 13 shown, the bottom of the support cylinder 64 is fixedly installed on the rotating plate 61. Connecting plates 60 are symmetrically arranged between the lower frames 1. The rotating plate 61 is rotatably installed with the connecting plates 60 through a connecting rotating shaft 63. Locking pins 62 are arranged between the four corners of the rotating plate 61 and the connecting plates 60. A matching rack 616 is arranged on the outer side of the support cylinder 64. Clamping grooves 613 are arranged on both sides of the matching rack 616. A moving frame two 614 is slidably clamped in the clamping grooves 613. A matching gear 617 is rotatably installed on the moving frame two 614. The matching gear 617 is connected with a driving motor five 615. The matching gear 617 meshes with the matching rack 616. A linkage plate 618 is connected to the moving frame two 614. A matching ring two 619 is arranged at the end of the linkage plate 618. The matching ring two 619 is annularly clamped with the end of the separation cylinder 65.

[0052] Specifically, after the separation of the alloy powder and the solvent and the drying treatment are realized, by controlling the overall rotation of the support cylinder 64 and the separation cylinder 65, and using the driving motor five 615 to drive the moving frame two 614 to move, the separation cylinder 65 is pushed away from the support cylinder 64, and the powder collection in the separation cylinder 65 is realized.

[0053] Based on the above-mentioned cemented carbide preparation process of a cemented carbide preparation and processing device, it includes the following steps: S1. Raw material preparation: The raw material powder is screened and pretreated through a raw material pretreatment device to ensure that the alloy powder particles are uniform and free of impurities; S2. Mixing and wet grinding: The alloy powder is mixed and sufficiently wet ground through a wet grinding device, and after forming a uniform slurry, the alloy powder is obtained through separation; S3. Compression molding: The alloy powder filled into the mold is cold-pressed and formed through a pressing device to obtain a green product; S4. Sintering: The pressed green body is pre-sintered and high-temperature sintered through a sintering device. In the pre-sintering stage, the forming agent is removed at a temperature of 600 - 800 °C to initially improve the strength of the green body. In the sintering stage, it is heated to 1400 - 1600 °C in a vacuum or hydrogen atmosphere, and the alloy powder melts to form a liquid phase, realizing densification and lasting for several hours to obtain a finished product; S5. Surface treatment: The sintered finished product is surface polished and coated through a surface treatment device.

[0054] The working principle of the embodiments of the present invention is as follows: Figures 1 - 13As shown in the figure, the sealing or opening of the end of the wet grinding cylinder 2 is achieved through the plugging and docking mechanism 3, which facilitates the addition of alloy powder into the wet grinding cylinder 2. At the same time, a conveying rod 510 and a nozzle 5100 are arranged at the axial position of the end cover 50. In combination with the storage cylinder 7, the wet grinding solvent can be fed into the wet grinding cylinder 2, and after the wet grinding is completed, the solvent is injected into the wet grinding cylinder 2 through the reciprocating conveying rod 510 and nozzle 5100, so as to wash out all the residual alloy powder in the wet grinding cylinder 2. The alloy powder and the solvent leave the wet grinding cylinder 2 through the discharge hole 200. A limiting net 206 is arranged at the discharge hole 200 to prevent the steel balls participating in the wet grinding in the wet grinding cylinder 2 from leaving the wet grinding cylinder 2 through the discharge hole 200, and at the same time, the size of the discharge hole 200 is effectively increased, thereby improving the discharge speed. A plug 201 is arranged in the discharge hole 200, and a mating groove 2010 that cooperates with the limiting net 206 is arranged in the plug 201. When the plug 201 is inserted into the discharge hole 200, the mating groove 2010 cooperates with the limiting net 206 to form a smooth cylindrical structure on the inner wall of the wet grinding cylinder 2, thereby preventing the steel balls from wearing and damaging the limiting net 206 during wet grinding. After the plug 201 is engaged with the discharge hole 200, the electric telescopic column 204 and the limiting plate 205 are used to limit the plug 201 to prevent the plug 201 from disengaging or moving around at the discharge hole 200 during the rotation of the wet grinding cylinder 2, and to prevent the powder and the solvent from leaking. The end cover 50 cooperates with the edge of the wet grinding cylinder 2, and the conveying rod 510 enters or exits the docking sleeve 52 through the pressing roller 58, thereby driving the nozzle 5100 at the end to move back and forth inside the wet grinding cylinder 2, and then adding solvent into the wet grinding cylinder 2 or flushing the inside of the wet grinding cylinder 2 with the solvent. The end cover 50 cooperates with the end of the wet grinding cylinder 2 through the docking head 520 to complete the sealing of the opening part at the end of the wet grinding cylinder 2. The end cover 50 is engaged with the clamping grooves 613-2 and 613-1 on the mating ring 20 through the right-angle frame 23, the first telescopic cylinder 24, the first supporting ball 240, the second telescopic cylinder 25, and the second supporting ball 250 arranged at the edge, and then the end cover 50 is clamped with the wet grinding cylinder 2. The connection methods of the first supporting ball 240 and the second supporting ball 250 with the mating ring 20 not only realize the reliable connection between the end cover 50 and the wet grinding cylinder 2, but also ensure the rotational wet grinding operation of the wet grinding cylinder 2. After the end cover 50 is separated from the end of the wet grinding cylinder 2, the swing frame 2 can be rotated by the rotating motor 54, so that the feeding pipe 56 points to the opening part at the end of the wet grinding cylinder 2, thereby performing the feeding operation of the alloy powder. In order to improve the wet grinding effect and at the same time improve the feeding speed of the alloy powder inside the wet grinding cylinder 2 during feeding, a third telescopic motor 45 is arranged between the support frame 14 and the sliding frame 12, and the third telescopic motor 45 is used to control the end of the wet grinding cylinder 2 to swing up and down. It should be noted that one end of the wet grinding cylinder 2 close to the power motor is connected by a universal joint, so that the wet grinding cylinder 2 can swing up and down without being separated from the power motor.In order to ensure stable support for the wet grinding cylinder 2 during wet grinding, an annular groove 44 and a swinging frame 42 are provided. When the wet grinding cylinder 2 is controlled to swing up and down, the swinging frame 42 is controlled by the telescopic motor 41 to disengage from the annular groove 44 and maintain an inclined posture to avoid interference with the wet grinding cylinder 2 swinging up and down. When the wet grinding cylinder 2 is wet grinding, the annular groove 44 is stably supported by the swinging frame 42 and the support roller 43. The telescopic motor 34 drives the connecting curved rod 35 and the clamping ring 36 to move up and down, thereby controlling the threaded column 32 to move up and down, thereby controlling the threaded column 32 to dock with the threaded groove 202 on the plug 201 and realize threaded matching, so that the plug 201 is separated from or enters the discharge hole 200. The wet-milled powder and the solvent fall into the separation cylinder 65 together. The driving motor 4 68 and the driving gear 69 drive the separation cylinder 65 to rotate in the support cylinder 64, similar to the dehydration mode of a washing machine, to separate the alloy powder and the solvent. The residual solvent is stirred and heated by the stirring roller 67 and the driving motor 3 66. The stirring roller 67 is provided with a heating wire for heating. After the alloy powder and the solvent are separated and dried, the support cylinder 64 and the separation cylinder 65 are controlled to rotate as a whole, and the driving motor 5 615 is used to drive the moving frame 2 614 to move, so as to push the separation cylinder 65 away from the support cylinder 64, and collect the powder in the separation cylinder 65.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Any reference numeral in a claim shall not be regarded as limiting the claim involved.

[0056] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A cemented carbide preparation and processing device, characterized in that, The invention comprises a raw material pretreatment device, a wet grinding device, a pressing device, a sintering device, and a surface treatment device, wherein the wet grinding device comprises a wet grinding cylinder (2), the wet grinding cylinder (2) is connected to a power motor, a discharge hole (200) is provided on the wet grinding cylinder (2), a blocking docking mechanism (3) is provided in cooperation with the discharge hole (200), and a side docking mechanism (5) and a shaking mechanism (4) are provided at the end of the wet grinding cylinder (2); A plug (201) is installed in the discharge hole (200), and a thread groove (202) is provided on the plug (201). The plugging and docking mechanism (3) comprises a driving motor (33), and the driving motor (33) is connected to a matching column (37). A threaded column (32) is vertically inserted on the matching column (37), and the threaded column (32) is installed in a lifting manner. The side docking mechanism (5) comprises an end cover (50) coaxially arranged with the end of the wet grinding cylinder (2); the end cover (50) is horizontally movably installed; a conveying rod (510) is inserted into the center of the end cover (50); a nozzle (5100) is connected to the end of the conveying rod (510); the conveying rod (510) and the nozzle (5100) move back and forth along the axial direction of the wet grinding cylinder (2); the conveying rod (510) is connected to a storage cylinder (7); and a solvent for wet grinding is stored in the storage cylinder (7).

2. The carbide preparation and processing equipment according to claim 1, characterized in that, The wet grinding cylinder (2) is provided with a limiting net (206) on the inner side of the material discharge hole (200); the inner side of the plug (201) is provided with a matching groove (2010) that matches with the limiting net (206); the edge of the plug (201) is evenly provided with docking protrusions (203); the plug (201) is mounted in cooperation with the material discharge hole (200) via the docking protrusions (203); the wet grinding cylinder (2) is symmetrically provided with electric telescopic columns (204) at the material discharge hole (200); the electric telescopic columns (204) are connected to the limiting plate (205); the limiting plate (205) passes through the material discharge hole (200) and matches with the plug (201).

3. A cemented carbide preparation and processing device according to claim 1, characterized in that The side docking mechanism (5) further comprises a docking sleeve (52) coaxially mounted between the end cover (50), the docking sleeve (52) being rotatably mounted on the matching seat (51), the matching seat (51) being connected to a support frame (14), the end of the wet grinding cylinder (2) being connected to an upper frame (10), the support frame (14) being connected to the upper frame (10) via a shaking mechanism (4), a lower frame (1) being arranged at the lower side of the upper frame (10), a fixing frame (57) being arranged on the support frame (14), squeezing rollers (58) being rotatably mounted on the fixing frame (57) on both sides of the conveying rod (510), one of the squeezing rollers (58) being connected to a second driving motor (59), and a docking joint (520) being sealed and matched with an end opening of the wet grinding cylinder (2).

4. A cemented carbide preparation and processing device according to claim 3, characterized in that, One end of the wet grinding cylinder (2) located at the end cover (50) is provided with a first mating ring (20). A first clamping groove (21) and a second clamping groove (22) are respectively arranged on the first mating ring (20). Right-angle brackets (23) are annularly and evenly arranged on the end cover (50). A second telescopic cylinder (25) and a second support ball (250) are arranged at a position corresponding to the first clamping groove (21) on the right-angle bracket (23). The second support ball (250) cooperates with the first clamping groove (21). A first telescopic cylinder (24) and a first support ball (240) are arranged at a position corresponding to the second clamping groove (22) on the right-angle bracket (23). The first support ball (240) cooperates with the second clamping groove (22). An extension bracket (53) is fixedly installed at the axial position of the end cover (50). A rotary motor (54) is arranged at the end of the extension bracket (53). A second swing bracket (55) is arranged on the output shaft of the rotary motor (54). A feeding pipe (56) is arranged at the end of the second swing bracket (55).

5. A cemented carbide preparation and processing device according to claim 3, characterized in that, The shaking mechanism (4) includes a connecting rod (40) arranged between the upper machine frames (10) and a first swing bracket (42) rotatably installed between the upper machine frames (10). A second telescopic motor (41) is arranged between the connecting rod (40) and the first swing bracket (42). Support rollers (43) are symmetrically and rotatably installed on the first swing bracket (42). An annular groove (44) is arranged on the outer ring of the wet grinding cylinder (2). The support rollers (43) are in contact installation with the annular groove (44). Horizontal cylinders (13) are symmetrically arranged on the upper machine frames (10). A sliding bracket (12) is connected to the end of the horizontal cylinder (13). A guide rail (11) is arranged on the upper machine frames (10). The sliding bracket (12) is slidably installed with the guide rail (11). A third telescopic motor (45) is rotatably installed between the support frame (14) and the sliding bracket (12).

6. A cemented carbide preparation and processing device according to claim 3, characterized in that, The plugging and docking mechanism (3) further includes a slide rail (30) arranged between the upper machine frames (10). The slide rails (30) are symmetrically arranged. A first moving bracket (31) is slidably installed between the slide rails (30). A first driving motor (33) is fixedly installed with the first moving bracket (31). A first telescopic motor (34) is arranged on the first moving bracket (31). The first telescopic motor (34) is connected with a connecting curved rod (35). A clamping ring (36) is arranged at the end of the connecting curved rod (35). The clamping ring (36) is annularly clamped with the threaded column (32).

7. A cemented carbide preparation and processing device according to claim 6, characterized in that, A solvent separation mechanism (6) is provided between the upper frame (10) and the lower frame (1). The solvent separation mechanism (6) includes a support cylinder (64). A separation cylinder (65) is rotatably installed inside the support cylinder (64). A docking pipe (611) is provided at the bottom of the support cylinder (64). The docking pipe (611) is connected to a storage cylinder (7) through a conduit. A stirring roller (67) is rotatably installed at the center of the separation cylinder (65). The stirring roller (67) is connected to a third driving motor (66). A fourth driving motor (68) is fixedly provided at the end of the support cylinder (64). The fourth driving motor (68) is connected to a driving gear (69). An external gear ring (610) is provided at the end of the separation cylinder (65). The driving gear (69) meshes with the external gear ring (610).

8. A cemented carbide preparation and processing device according to claim 7, characterized in that, The bottom of the support cylinder (64) is fixedly installed on a rotating plate (61). Connecting plates (60) are symmetrically provided between the lower frames (1). The rotating plate (61) is rotatably installed with the connecting plates (60) through a connecting rotating shaft (63). Locking pins (62) are provided between the four corners of the rotating plate (61) and the connecting plates (60). A matching rack (616) is provided on the outer side of the support cylinder (64). Clamping grooves (613) are provided on both sides of the matching rack (616). A second moving frame (614) is slidably clamped in the clamping grooves (613). A matching gear (617) is rotatably installed on the second moving frame (614). The matching gear (617) is connected to a fifth driving motor (615). The matching gear (617) meshes with the matching rack (616). A linkage plate (618) is connected to the second moving frame (614). A second matching ring (619) is provided at the end of the linkage plate (618). The second matching ring (619) is annularly clamped with the end of the separation cylinder (65).

9. The cemented carbide preparation process of a cemented carbide preparation and processing device according to claim 1, characterized in that, It includes the following steps: S1. Raw material preparation: Screen and preprocess the raw material powder through a raw material pretreatment device to ensure that the alloy powder particles are uniform and free of impurities; S2. Mixing and wet grinding: Mix and fully wet grind the alloy powder through a wet grinding device. After forming a uniform slurry, the alloy powder is obtained through separation; S3. Compression molding: Cold compress the alloy powder filled into the mold through a pressing device to obtain a green product; S4. Sintering: Pre-sinter and high-temperature sinter the pressed green body through a sintering device. In the pre-sintering stage, the forming agent is removed at a temperature of 600 - 800 °C to initially improve the strength of the green body. In the sintering stage, it is heated to 1400 - 1600 °C in a vacuum or hydrogen atmosphere. The alloy powder melts to form a liquid phase, achieving densification and lasting for several hours to obtain the finished product; S5. Surface treatment: Polish and add a coating to the surface of the finished product obtained by sintering through a surface treatment device.

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