A cemented carbide preparation process and processing equipment

Abstract

The invention discloses a cemented carbide preparation process and processing equipment thereof, relating to the field of cemented carbide preparation, including 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 includes a wet grinding cylinder, a discharge hole is provided on the wet grinding cylinder, a sealing docking mechanism is provided in conjunction with the discharge hole, and a side docking mechanism and a shaking mechanism are provided at the end of the wet grinding cylinder; a plug is installed in conjunction with the discharge hole, a threaded groove is provided on the plug, the sealing docking mechanism includes a driving motor 1, the driving motor 1 is connected to a matching column, a threaded column is vertically inserted into the matching column, and the side docking mechanism includes an end cover coaxially arranged with the end of the wet grinding cylinder, a conveying rod is inserted at the center of the end cover, and a nozzle is connected to the end of the conveying rod; the sealing docking mechanism facilitates the unloading operation after wet grinding, and the side docking mechanism facilitates the feeding of the wet grinding cylinder and the cleaning operation of the inside of the wet grinding cylinder after the wet grinding is completed.

Description

Technical Field

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

[0002] Cemented carbide is an alloy material made from a hard compound of a refractory metal and a binder metal through a powder metallurgy process. It exhibits high hardness, high wear resistance, and good red hardness. It is primarily used in cutting tools, mold manufacturing, mining tools, and other fields. The preparation of cemented carbide primarily involves wet grinding of the raw material powder to ensure uniformity of the hard phase powder, thereby ensuring quality during subsequent sintering.

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

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

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] 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, which is connected to a power motor and is provided with a discharge hole. The discharge hole is provided with a sealing docking mechanism, and the end of the wet grinding cylinder is provided with a side docking mechanism and a shaking mechanism.

[0007] A plug is installed in the discharge hole, and a threaded groove is provided on the plug. The sealing docking mechanism includes a driving motor 1, which is connected to a matching column, and a threaded column is vertically inserted into the matching column, and the threaded column is installed in a lifting manner.

[0008] 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 in the center of the end cover, the end of the conveying rod is connected to a nozzle, the conveying rod and the nozzle move back and forth along the axis direction of the wet grinding cylinder, the conveying rod is connected to a storage cylinder, and the storage cylinder stores a solvent for wet grinding.

[0009] As a further solution of the present invention: the wet grinding cylinder is provided with a limiting net on the inner side of the discharge hole, the inner side of the plug is provided with a matching groove that cooperates with the limiting net, the edge of the plug is evenly provided with docking protrusions, the plug is installed in cooperation with the discharge hole through the docking protrusions, the wet grinding cylinder is symmetrically provided with electric telescopic columns at the discharge hole, the electric telescopic columns are connected to the limiting plate, and the limiting plate passes through the discharge hole and cooperates with the plug.

[0010] As a further solution of the present invention: the side docking mechanism also includes a docking sleeve coaxially installed between 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 the upper frame, the support frame is connected to the upper frame through a shaking mechanism, a lower frame is provided on the lower side of the upper frame, a fixed frame is provided on the support frame, and the fixed frame is symmetrically rotatably installed with squeezing rollers on both sides of the conveying rod, one of the squeezing rollers is connected to drive motor 2, and a docking joint is also provided on the end cover, and the docking joint and the end opening of the wet grinding cylinder are sealed with each other.

[0011] As a further solution of the present invention: the wet grinding cylinder is provided with a matching ring 1 at one end of the end cover, and the matching ring 1 is respectively provided with a clamping groove 1 and a clamping groove 2, and the end cover is evenly arranged with right-angle frames in a ring shape, and the position of the right-angle frame corresponding to the clamping groove 1 is provided with a telescopic cylinder 2 and a support ball 2, and the support ball 2 cooperates with the clamping groove 1, and the position of the right-angle frame corresponding to the clamping groove 2 is provided with a telescopic cylinder 1 and a support ball 1, and the support ball 1 cooperates with the clamping groove 2, and an extension frame is fixedly installed on the axis of the end cover, and a rotating motor is provided at the end of the extension frame, and a swing frame 2 is provided on the output shaft of the rotating motor, and a material injection pipe is provided at the end of the swing frame 2.

[0012] As a further solution of the present invention: the shaking mechanism includes a connecting rod arranged between the upper frames and a swing frame 1 rotatably installed between the upper frames, a telescopic motor 2 is arranged between the connecting rod and the swing frame 1, a support roller is symmetrically rotatably installed on the swing frame 1, the outer ring of the wet grinding cylinder is provided with an annular groove, and the support roller is contacted with the annular groove. Horizontal cylinders are symmetrically arranged on the upper frames, the ends of the horizontal cylinders are connected to sliding frames, a guide rail is provided on the upper frames, the sliding frames are slidably installed between the guide rails, and a telescopic motor 3 is rotatably installed between the support frame and the sliding frame.

[0013] As a further solution of the present invention: the blocking docking mechanism also includes sliding rails arranged between the upper frames, the sliding rails are symmetrically arranged, and a movable frame 1 is slidably installed between the sliding rails, the driving motor 1 is fixedly installed between the movable frame 1, and a telescopic motor 1 is arranged on the movable frame 1, and the telescopic motor 1 is connected to a connecting curved rod, and a clamping ring is provided at the end of the connecting curved rod, and the clamping ring is annularly clamped with the threaded column.

[0014] As a further solution of the present invention: a solvent separation mechanism is arranged between the upper frame and the lower frame, and the solvent separation mechanism includes a supporting cylinder, a separation cylinder is rotatably installed in the supporting cylinder, a docking tube is provided at the bottom of the supporting cylinder, and the docking tube 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 drive motor three, a drive motor four is fixedly provided at the end of the supporting cylinder, the drive motor four is connected to a drive gear, an outer gear ring is provided at the end of the separation cylinder, and the drive gear and the outer gear ring are meshed with each other.

[0015] As a further solution of the present invention: the bottom of the support cylinder is fixedly mounted on the rotating plate, and a connecting plate is symmetrically arranged between the lower frame, and the rotating plate is rotatably mounted between the connecting shaft and the connecting plate, and a locking pin is arranged between the four corners of the rotating plate and the connecting plate, and a matching rack is provided on the outer side of the support cylinder, and a clamping groove is provided on both sides of the matching rack, and a movable frame 2 is slidably clamped in the clamping groove, and a matching gear is rotatably mounted on the movable frame 2, and the matching gear is connected to a driving motor 5, and the matching gear and the matching rack are meshed with each other, and a linkage plate is connected to the movable frame 2, and a matching ring 2 is provided at the end of the linkage plate, and the matching ring 2 is annularly clamped with the end of the separation cylinder.

[0016] The cemented carbide preparation process based on the above-mentioned cemented carbide preparation and processing equipment includes the following steps: S1, raw material preparation, screening and pretreatment of raw material powder by 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 of the alloy powder by a wet grinding device to form a uniform slurry, and then separating to obtain alloy powder; S3, pressing and molding, cold pressing the alloy powder filled into the mold by a pressing device to obtain a product green body; S4, sintering, pre-sintering and high-temperature sintering of the pressed green body by a sintering device, removing the forming agent at a temperature of 600-800°C in the pre-sintering stage to preliminarily improve the strength of the green body, and heating to 1400-1600°C in a vacuum or hydrogen atmosphere in the sintering stage, melting the alloy powder to form a liquid phase, achieving densification and lasting for several hours to obtain a finished product; S5, surface treatment, surface grinding and polishing of the sintered finished product by a surface treatment device and adding a coating treatment.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) The end of the wet grinding cylinder is sealed or opened by a plugging docking mechanism, thereby facilitating the addition of alloy powder into the wet grinding cylinder. At the same time, a conveying rod and a nozzle are provided at 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 solvent is injected into the wet grinding cylinder through the conveying rod and the nozzle that move back and forth, thereby flushing out all the alloy powder remaining in the wet grinding cylinder. The alloy powder and the solvent leave the wet grinding cylinder through the discharge hole.

[0019] (2) A plug is provided in the discharge hole, and a matching groove is provided in the plug to cooperate with the limiting net. When the plug is inserted into the discharge hole, the matching groove cooperates with the limiting net, and the inner wall of the wet grinding cylinder forms a smooth cylindrical structure, thereby preventing the steel ball from wearing and damaging the limiting net during wet grinding. When the plug is matched with the discharge hole, the electric telescopic column and the limiting plate form a limit for the plug, preventing the plug from separating from the discharge hole or moving during the rotation of the wet grinding cylinder, thereby preventing the leakage of powder and solvent.

[0020] (3) The end cap cooperates with the edge of the wet grinding cylinder. The conveying rod enters or passes through the docking sleeve through the squeezing roller, thereby driving the nozzle at the end to move back and forth inside the wet grinding cylinder, thereby adding solvent to the wet grinding cylinder or using the solvent to flush the inside of the wet grinding cylinder. The end cap cooperates with the end of the wet grinding cylinder through the docking joint to complete the sealing of the end opening of the wet grinding cylinder.

[0021] (4) The end cover cooperates with the clamping groove 2 and the clamping groove 1 on the matching ring 1 through the right-angle frame, telescopic cylinder 1, support ball 1 and telescopic cylinder 2 and support ball 2 set on the edge, thereby achieving the clamping connection between the end cover and the wet grinding cylinder. The connection between support ball 1, support ball 2 and matching ring 1 not only realizes the reliable connection between the end cover and the wet grinding cylinder, but also ensures the rotation and wet grinding operation of the wet grinding cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle.

[0024] Figure 3 It is a schematic diagram of the coordination between the plug and the discharge hole in the present invention.

[0025] Figure 4 It is a schematic diagram of the separation structure of the plug and the discharge hole in the present invention.

[0026] Figure 5 It is a structural schematic diagram of the blocking and docking mechanism in the present invention.

[0027] Figure 6 It is a structural schematic diagram of the side docking mechanism in the present invention.

[0028] Figure 7 Schematic diagram of the installation of the nozzle in the present invention.

[0029] Figure 8 It is a schematic diagram of the installation of the shaking mechanism in the present invention.

[0030] Figure 9 This is a schematic diagram of the enlarged structure of point B in the present invention.

[0031] Figure 10 Schematic diagram of the structure of the solvent separation mechanism in the present invention.

[0032] Figure 11 This is a schematic structural diagram of the solvent separation mechanism in the present invention from another perspective.

[0033] Figure 12 for Figure 11 Enlarged structural diagram at point C in the middle.

[0034] Figure 13 for Figure 11 Enlarged structural diagram at point D in the middle.

[0035] 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, matching ring 1; 21, clamping groove 1; 22, clamping groove 2; 23, right-angle frame; 24, telescopic cylinder 1; 240, support ball 1; 25, telescopic cylinder 2; 250, support ball 2; 200, discharge hole; 201, plug; 2010, matching groove; 2 02. Threaded groove; 203. Docking protrusion; 204. Electric telescopic column; 205. Limit plate; 206. Limiting net; 3. Blocking docking mechanism; 30. Slide rail; 31. Mobile frame 1; 32. Threaded column; 33. Drive motor 1; 34. Telescopic motor 1; 35. Connecting curved rod; 36. Snap ring; 37. Matching column; 4. Shaking mechanism; 40. Connecting rod; 41. Telescopic motor 2; 42. Swing frame 1; 43. Support Roller; 44, annular groove; 45, telescopic motor three; 5, side docking mechanism; 50, end cover; 51, matching seat; 52, docking sleeve; 520, docking head; 53, extension frame; 54, rotating motor; 55, swing frame two; 56, injection pipe; 57, fixed frame; 58, squeezing roller; 59, driving motor two; 510, conveying rod; 5100, nozzle; 6, solvent separation mechanism; 60, connecting plate; 61, rotating Plate; 62. Locking pin; 63. Connecting shaft; 64. Support cylinder; 65. Separation cylinder; 66. Drive motor three; 67. Stirring roller; 68. Drive motor four; 69. Drive gear; 610. Outer gear ring; 611. Docking tube; 613. Snap-in groove; 614. Moving frame two; 615. Drive motor five; 616. Matching rack; 617. Matching gear; 618. Linkage plate; 619. Matching ring two; 7. Storage cylinder. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be further described in detail below in conjunction with specific implementation methods.

[0037] like 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 sealing 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 the plug 201 is provided with a threaded groove 202. The sealing docking mechanism 3 includes a drive motor 33, which is connected to a mating column 37. A threaded column 32 is vertically inserted into the mating 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 installed horizontally and movably. A conveying rod 510 is inserted into 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 axis 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.

[0038] Specifically, the end of the wet grinding cylinder 2 is sealed or opened by blocking the docking mechanism 3, thereby facilitating the addition of alloy powder into the wet grinding cylinder 2. A delivery rod 510 and a nozzle 5100 are also provided at the axial position of the end cap 50. Together with the storage cylinder 7, these allow the wet grinding solvent to be delivered into the wet grinding cylinder 2. After wet grinding is complete, the reciprocating delivery rod 510 and nozzle 5100 inject solvent into the wet grinding cylinder 2, flushing out any remaining alloy powder. The alloy powder and solvent then exit the wet grinding cylinder 2 through the discharge port 200.

[0039] 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.

[0040] Specifically, a limiting net 206 is provided at the discharge hole 200 to prevent the steel balls participating in wet grinding in the wet grinding cylinder 2 from leaving the wet grinding cylinder 2 through the discharge hole 200. This effectively increases the size of the discharge hole 200, thereby increasing the discharge speed. A plug 201 is provided in the discharge hole 200, and a matching groove 2010 is provided in the plug 201 to cooperate with the limiting net 206. When the plug 201 is inserted into the discharge hole 200, the matching groove 2010 cooperates with the limiting net 206, forming 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. When the plug 201 is fitted with the discharge hole 200, the plug 201 is limited by the electric telescopic column 204 and the limit plate 205 to prevent the plug 201 from being separated from the discharge hole 200 or moving during the rotation of the wet grinding cylinder 2, thereby preventing powder and solvent leakage.

[0041] Further, such as Figure 1 、 Figure 6 、 Figure 7 As shown, the side docking mechanism 5 also includes a docking sleeve 52 coaxially installed between the end cover 50, and the docking sleeve 52 is rotatably installed on the matching seat 51. The matching seat 51 is connected to a support frame 14, and the end of the wet grinding cylinder 2 is connected to the upper frame 10. The support frame 14 is connected to the upper frame 10 through a shaking mechanism 4. The lower side of the upper frame 10 is provided with a lower frame 1, and a fixing frame 57 is provided on the support frame 14. The fixing frame 57 is symmetrically rotatably installed with squeezing rollers 58 on both sides of the conveying rod 510, and one of the squeezing rollers 58 is connected to a driving motor 2 59. The end cover 50 is also provided with a docking joint 520, and the docking joint 520 and the end opening of the wet grinding cylinder 2 are sealed with each other.

[0042] Specifically, the end cap 50 engages with the edge of the wet grinding cylinder 2. The conveying rod 510 enters or passes through the docking sleeve 52 via the squeezing roller 58, thereby driving the nozzle 5100 at the end to move back and forth within the wet grinding cylinder 2, thereby adding solvent to the wet grinding cylinder 2 or using the solvent to flush the interior of the wet grinding cylinder 2. The end cap 50 engages with the end of the wet grinding cylinder 2 via the docking joint 520, completing the sealing of the end opening of the wet grinding cylinder 2.

[0043] Further, such as Figure 2As shown, the wet grinding cylinder 2 is provided with a matching ring 20 at one end of the end cover 50, and the matching ring 20 is respectively provided with a clamping groove 21 and a clamping groove 22, and a right-angle frame 23 is evenly arranged in a ring on the end cover 50. A telescopic cylinder 25 and a supporting ball 250 are provided at the position corresponding to the clamping groove 21 on the right-angle frame 23, and the supporting ball 250 cooperates with the clamping groove 21. A telescopic cylinder 24 and a supporting ball 240 are provided at the position corresponding to the clamping groove 22 on the right-angle frame 23, and the supporting ball 240 cooperates with the clamping groove 22. An extension frame 53 is fixedly installed on the axis of the end cover 50, and a rotating motor 54 is provided at the end of the extension frame 53. A swing frame 255 is provided on the output shaft of the rotating motor 54, and a feeding pipe 56 is provided at the end of the swing frame 255.

[0044] Specifically, the end cover 50 cooperates with the snap-in groove 6132 and the snap-in groove 6131 on the matching ring 1 20 through the right-angle frame 23, telescopic cylinder 1 24, support ball 1 240, telescopic cylinder 2 25, and support ball 2 250 arranged on the edge, thereby achieving the snap connection between the end cover 50 and the wet grinding cylinder 2, and the connection between the support ball 1 240, the support ball 2 250 and the matching ring 1 20 not only realizes the reliable connection between the end cover 50 and the wet grinding cylinder 2, but also ensures the rotation wet grinding operation of the wet grinding cylinder 2.

[0045] More specifically, after the end cover 50 is separated from the end of the wet grinding cylinder 2, the swing frame 55 can be driven to rotate by the rotating motor 54 so that the feeding tube 56 points to the opening of the end of the wet grinding cylinder 2, thereby performing the feeding operation of the alloy powder.

[0046] Further, such as Figure 8 、 Figure 9 As shown, the shaking mechanism 4 includes a connecting rod 40 arranged between the upper frame 10 and a swing frame 42 rotatably installed between the upper frame 10, a telescopic motor 2 41 is arranged between the connecting rod 40 and the swing frame 1 42, a support roller 43 is symmetrically rotatably installed on the swing frame 1 42, an annular groove 44 is provided on the outer ring of the wet grinding cylinder 2, and the support roller 43 is contacted with the annular groove 44. A horizontal cylinder 13 is symmetrically arranged on the upper frame 10, and the end of the horizontal cylinder 13 is connected to a sliding frame 12. A guide rail 11 is provided on the upper frame 10, and the sliding frame 12 is slidably installed between the guide rail 11. A telescopic motor 3 45 is rotatably installed between the support frame 14 and the sliding frame 12.

[0047] Specifically, to enhance the wet grinding effect and increase the speed at which the alloy powder is discharged from the wet grinding drum 2 during discharge, a telescopic motor 3 45 is provided between the support frame 14 and the sliding frame 12. This motor 3 45 is used to control the up and down swinging of the end of the wet grinding drum 2. It should be noted that the end of the wet grinding drum 2 closest to the power motor is connected to a universal joint, allowing the wet grinding drum 2 to swing up and down without being separated from the power motor.

[0048] 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, so as 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.

[0049] 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, and a movable frame 31 is slidably installed between the slide rails 30, the drive motor 33 is fixedly installed between the movable frame 31, and a telescopic motor 34 is provided on the movable frame 31, and the telescopic motor 34 is connected to a connecting bent rod 35. A clamping ring 36 is provided at the end of the connecting bent rod 35, and the clamping ring 36 is annularly clamped with the threaded column 32.

[0050] 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 realize threaded matching, so that the plug 201 can detach from or enter the discharge hole 200.

[0051] Further, such as Figure 10 As shown, a solvent separation mechanism 6 is provided 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, and a docking tube 611 is provided at the bottom of the support cylinder 64, and the docking tube 611 is connected to the storage cylinder 7 through a conduit, and a stirring roller 67 is rotatably installed at the center of the separation cylinder 65, and the stirring roller 67 is connected to a drive motor three 66, and a drive motor four 68 is fixedly provided at the end of the support cylinder 64, and the drive motor four 68 is connected to a drive gear 69, and an outer gear ring 610 is provided at the end of the separation cylinder 65, and the drive gear 69 and the outer gear ring 610 are engaged with each other.

[0052] Specifically, the powder and solvent after wet grinding fall into the separation drum 65 together, and the separation drum 65 is driven to rotate in the support drum 64 by the drive motor 4 68 and the drive gear 69, similar to the dehydration mode of a washing machine to achieve the separation between the alloy powder and the solvent. The residual solvent is stirred and heated and dried by the stirring roller 67 and the drive motor 3 66, and an electric heating wire is set in the stirring roller 67 for heating operation.

[0053] Further, such as Figure 11 、 Figure 12 、 Figure 13 As shown, the bottom of the support cylinder 64 is fixedly mounted on the rotating plate 61, and a connecting plate 60 is symmetrically arranged between the lower frame 1. The rotating plate 61 is rotatably mounted between the connecting plate 60 by connecting the rotating shaft 63. A locking pin 62 is provided between the four corners of the rotating plate 61 and the connecting plate 60. A matching rack 616 is provided on the outer side of the support cylinder 64, and a clamping groove 613 is provided on both sides of the matching rack 616. A movable frame 2 614 is slidably clamped in the clamping groove 613. A matching gear 617 is rotatably mounted on the movable frame 2 614, and the matching gear 617 is connected to the driving motor 5 615. The matching gear 617 and the matching rack 616 are meshed with each other. A linkage plate 618 is connected to the movable frame 2 614, and a matching ring 2 619 is provided at the end of the linkage plate 618. The matching ring 2 619 is annularly clamped with the end of the separation cylinder 65.

[0054] Specifically, after the alloy powder is separated from the solvent 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 movable frame 2 614 to move, thereby pushing the separation cylinder 65 away from the support cylinder 64, and realizing the collection of powder in the separation cylinder 65.

[0055] The cemented carbide preparation process based on the above-mentioned cemented carbide preparation and processing equipment includes the following steps:

[0056] S1. Raw material preparation: the raw material powder is screened and pretreated by 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 fully wet-grinded by a wet grinding device to form a uniform slurry, which is then separated to obtain alloy powder; S3. Pressing and molding: the alloy powder filled into the mold is cold-pressed by a pressing device to obtain a product embryo; S4. Sintering: the pressed embryo is pre-sintered and high-temperature sintered by a sintering device. During the pre-sintering stage, the forming agent is removed at a temperature of 600-800°C to initially improve the strength of the embryo. During the sintering stage, the embryo 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: the surface of the sintered finished product is polished and coated by a surface treatment device.

[0057] The working principle of the embodiment of the present invention is as follows: Figures 1-13As shown, 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 provided at the axial position of the end cover 50. In combination with the storage cylinder 7, the wet grinding solvent can be delivered into the wet grinding cylinder 2, 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. A limiting net 206 is provided 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 from the discharge hole 200, and at the same time effectively increase the size of the discharge hole 200, thereby improving the discharge speed. A plug 201 is positioned within the discharge hole 200, and a mating groove 2010 is provided within the plug 201, which cooperates with the limiting mesh 206. When the plug 201 is inserted into the discharge hole 200, the mating groove 2010 and the limiting mesh 206 engage, forming a smooth cylindrical structure on the inner wall of the wet grinding drum 2, thereby preventing the steel balls from abrading and damaging the limiting mesh 206 during wet grinding. Once the plug 201 engages with the discharge hole 200, the plug 201 is restrained by an electrically operated telescopic column 204 and a limiting plate 205, preventing the plug 201 from separating from the discharge hole 200 or moving during rotation of the wet grinding drum 2, thereby preventing leakage of powder and solvent. The end cap 50 engages with the edge of the wet grinding cylinder 2. The conveying rod 510 enters or exits the docking sleeve 52 via the squeeze roller 58, thereby driving the nozzle 5100 at the end to move back and forth within the wet grinding cylinder 2, thereby adding solvent to the wet grinding cylinder 2 or flushing the interior of the wet grinding cylinder 2 with solvent. The end cap 50 engages with the end of the wet grinding cylinder 2 via the docking joint 520, sealing the open end of the wet grinding cylinder 2. The end cap 50, through the right-angle bracket 23, telescopic cylinder 1 24, support ball 1 240, telescopic cylinder 2 25, and support ball 2 250 provided on the edge, engages with the engaging groove 6132 and engaging groove 6131 on the mating ring 1 20. The engagement between the end cap 50 and the wet grinding cylinder 2, and the connection between the support balls 1 240 and 250 and the mating ring 1 20, not only ensures a secure connection between the end cap 50 and the wet grinding cylinder 2, but also ensures the rotational wet grinding operation of the wet grinding cylinder 2. After the end cap 50 is separated from the end of the wet grinding cylinder 2, the swing frame 2 55 can be driven to rotate by the rotating motor 54 so that the feeding tube 56 points to the opening of 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 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.To ensure stable support for the wet grinding drum 2 during wet grinding, an annular groove 44 and a swinging frame 1 42 are provided. When the wet grinding drum 2 is swung up and down, the swinging frame 1 42 is controlled by a telescopic motor 2 41 to disengage from the annular groove 44 and maintain an inclined position, thereby avoiding interference with the up and down swinging of the wet grinding drum 2. During wet grinding of the wet grinding drum 2, the annular groove 44 is stably supported by the swinging frame 1 42 and the support roller 43. The telescopic motor 1 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 mate with the threaded groove 202 on the plug 201 and achieve threaded engagement, allowing the plug 201 to disengage from or enter the discharge hole 200. The wet-milled powder and solvent fall together into the separation drum 65. Drive motor 4 68 and drive gear 69 drive the separation drum 65 to rotate within the support drum 64, similar to the dehydration mode of a washing machine, to separate the alloy powder and solvent. The remaining solvent is stirred and heated by a stirring roller 67 and drive motor 3 66, and a heating wire is installed within the stirring roller 67 to provide heating. After the alloy powder and solvent are separated and dried, the support drum 64 and separation drum 65 are controlled to rotate as a whole, and the drive motor 5 615 drives the movable frame 2 614 to move, thereby pushing the separation drum 65 away from the support drum 64, and collecting the powder in the separation drum 65.

[0058] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. Any reference numerals in the claims shall not be construed as limiting the claims involved.

[0059] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A cemented carbide preparation and processing equipment, 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 sealing docking mechanism (3) is provided in conjunction 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 fitted in the discharge hole (200), and a threaded groove (202) is provided on the plug (201). The plugging and 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 into the matching column (37), and the threaded column (32) is installed in a lifting manner. The side docking mechanism (5) comprises an end cap (50) coaxially arranged with the end of the wet grinding cylinder (2), the end cap (50) being movably installed horizontally, a delivery rod (510) being plugged into the center of the end cap (50), the end of the delivery rod (510) being connected to a nozzle (5100), the delivery rod (510) and the nozzle (5100) moving back and forth along the axis of the wet grinding cylinder (2), the delivery rod (510) being connected to a storage cylinder (7), the storage cylinder (7) storing a solvent for wet grinding; 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). The limiting plate (205) passes through the discharge hole (200) and cooperates with the plug (201); 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 provided on the lower side of the upper frame (10), a fixing frame (57) being provided 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); The end cap (50) cooperates with the edge of the wet grinding cylinder (2), and the conveying rod (510) enters or passes through the docking sleeve (52) through the squeezing roller (58), thereby driving the nozzle (5100) at the end to move back and forth inside the wet grinding cylinder (2), thereby adding solvent into the wet grinding cylinder (2) or using the solvent to flush the inside of the wet grinding cylinder (2). The end cap (50) cooperates with the end of the wet grinding cylinder (2) through the docking joint (520), completing the sealing of the end opening of the wet grinding cylinder (2).

2. The cemented carbide preparation and processing equipment according to claim 1, characterized in that: The wet grinding cylinder (2) is provided with a matching ring (20) at one end of the end cover (50), and the matching ring (20) is provided with a clamping groove (21) and a clamping groove (22). The end cover (50) is evenly arranged with right-angle brackets (23) in a circular shape. The right-angle bracket (23) is provided with a telescopic cylinder (25) and a supporting ball (250) at a position corresponding to the clamping groove (21). The supporting ball (250) cooperates with the clamping groove (21). The right-angle bracket A telescopic cylinder (24) and a supporting ball (240) are provided at a position corresponding to the second clamping groove (22) on (23), and the supporting ball (240) cooperates with the second clamping groove (22). An extension frame (53) is fixedly installed at the axis of the end cover (50), and a rotating motor (54) is provided at the end of the extension frame (53). A swing frame (55) is provided on the output shaft of the rotating motor (54), and a material injection pipe (56) is provided at the end of the swing frame (55).

3. The cemented carbide preparation and processing equipment according to claim 1, characterized in that: The shaking mechanism (4) includes a connecting rod (40) arranged between the upper frame (10) and a swing frame (42) rotatably mounted between the upper frame (10), a telescopic motor (41) is arranged between the connecting rod (40) and the swing frame (42), a support roller (43) is symmetrically rotatably mounted on the swing frame (42), an annular groove (44) is provided on the outer ring of the wet grinding cylinder (2), and the support roller (43) is contact-mounted with the annular groove (44), a horizontal cylinder (13) is symmetrically arranged on the upper frame (10), an end of the horizontal cylinder (13) is connected to a sliding frame (12), a guide rail (11) is provided on the upper frame (10), the sliding frame (12) is slidably mounted on the guide rail (11), and a telescopic motor (45) is rotatably mounted between the support frame (14) and the sliding frame (12).

4. The cemented carbide preparation and processing equipment according to claim 1, characterized in that: The blocking docking mechanism (3) further comprises slide rails (30) arranged between the upper frames (10), the slide rails (30) being symmetrically arranged, a movable frame (31) being slidably mounted between the slide rails (30), the drive motor (33) being fixedly mounted between the movable frame (31), a telescopic motor (34) being arranged on the movable frame (31), the telescopic motor (34) being connected to a connecting curved rod (35), a clamping ring (36) being provided at the end of the connecting curved rod (35), and the clamping ring (36) being annularly clamped to the threaded column (32).

5. The cemented carbide preparation and processing equipment according to claim 4, characterized in that: A solvent separation mechanism (6) is provided between the upper frame (10) and the lower frame (1), and the solvent separation mechanism (6) comprises a support cylinder (64), a separation cylinder (65) is rotatably installed in the support cylinder (64), a docking tube (611) is provided 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 provided 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 provided at the end of the separation cylinder (65), and the driving gear (69) and the outer gear ring (610) are meshed with each other.

6. The cemented carbide preparation and processing equipment according to claim 5, characterized in that: The bottom of the support cylinder (64) is fixedly mounted on the rotating plate (61), and a connecting plate (60) is symmetrically arranged between the lower frame (1). The rotating plate (61) is rotatably mounted between the connecting plate (60) and the connecting plate (60) via a connecting shaft (63). Locking pins (62) are arranged between the four corners of the rotating plate (61) and the connecting plate (60). A matching rack (616) is arranged on the outside of the support cylinder (64), and a clamping groove (613) is arranged on both sides of the matching rack (616). The clamping groove (613) is provided on the outer side of the support cylinder (64). 13) A movable frame 2 (614) is slidably connected thereto, a mating gear (617) is rotatably mounted on the movable frame 2 (614), the mating gear (617) is connected to a driving motor 5 (615), the mating gear (617) and the mating rack (616) are meshed with each other, a linkage plate (618) is connected to the movable frame 2 (614), a mating ring 2 (619) is provided at the end of the linkage plate (618), and the mating ring 2 (619) is annularly connected to the end of the separation cylinder (65).

7. A cemented carbide preparation process based on the cemented carbide preparation and processing equipment according to claim 1, characterized in that: The following steps are involved: S1. Raw material preparation: screening and pre-treating the raw material powder through the raw material pre-treatment 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 by a wet grinding device to form a uniform slurry and then separating to obtain alloy powder; S3, pressing and molding, cold-pressing the alloy powder filled into the mold by a pressing device to obtain a product embryo; S4, sintering, pre-sintering and high-temperature sintering of the pressed green body by 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, the green body is heated to 1400-1600°C in a vacuum or hydrogen atmosphere, and the alloy powder is melted to form a liquid phase to achieve densification. The process lasts for several hours to obtain the finished product. S5. Surface treatment: The surface of the sintered finished product is polished and coated by a surface treatment device.

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