A tungsten powder auxiliary mixing device for tungsten wire processing

Abstract

The application relates to a mixing device, in particular to a tungsten powder auxiliary mixing device for tungsten wire processing. The tungsten powder auxiliary mixing device for tungsten wire processing comprises a mounting table, an annular mounting frame, a numerical control motor, a horizontal rod, a bearing, a curved supporting rod and an annular guide rail, etc. The bottom of the table top of the mounting table is fixedly connected with the annular mounting frame, the numerical control motor is fixedly connected to the annular mounting frame, the output shaft of the numerical control motor is keyed with the horizontal rod, the outer ring of the bearing is fixedly connected to one side of the horizontal rod, the inner ring of the bearing is keyed with the outer wall of the stirring tank, the lower part of the mounting table is uniformly distributed with a plurality of curved supporting rods, and the lower parts of the curved supporting rods are jointly fixedly connected with the annular guide rail. The stirring tank rotates by itself, the substances with high density in the tank body and other substances with low density are overturned and mixed, the stirring frame rotates more quickly in the tank body, the hydrochloric acid solution can fully play the chemical reaction effect, and the mixing difficulty in preparation of the doped tungsten wire is reduced.

Description

Technical Field

[0001] This invention relates to a mixing device, and more particularly to a tungsten powder auxiliary mixing device for tungsten wire processing. Background Technology

[0002] Tungsten wire is a fine wire made from tungsten bars through forging and drawing. Due to the high hardness and brittleness of metallic tungsten and the difficulty in processing it, appropriate amounts of potassium oxide, silicon oxide, and aluminum oxide are often added during the production of tungsten wire. The resulting wire is called doped tungsten wire. The preparation steps for doped tungsten wire are as follows: First, ammonium metatungstate, potassium silicate, aluminum nitrate, potassium hydroxide, and hydrochloric acid solution are mixed; then, the mixture is spray-dried, and the dried powder is reduced with hydrogen to produce doped tungsten powder; finally, the desired product is obtained through operations such as molding, sintering, rotary forging, and drawing.

[0003] When ammonium metatungstate, potassium silicate, aluminum nitrate, and potassium hydroxide are mixed in a certain proportion, due to the different densities of the various substances, during the stirring process, the powder of the densest substance precipitates and accumulates at the bottom of the stirring container under the action of centrifugal force, forming a concentrated area of ​​a single substance. This area forms a relatively obvious separation layer with other powdered substances. During the reaction process after adding hydrochloric acid solution, only the outer layer of the mixture in this area can participate in the complete reaction, while the single substance with the highest density in the inner part of the area cannot form a good chemical reaction with other substances. As a result, the mixture ultimately forms a mixture of completely reacted and incompletely reacted substances during the mixing process. Summary of the Invention

[0004] To overcome the drawback of the difficulty in mixing existing doped tungsten powders during preparation, an auxiliary mixing device for tungsten powder in tungsten wire processing is provided.

[0005] The technical implementation scheme of the present invention is as follows: a tungsten powder auxiliary mixing device for tungsten wire processing, comprising a mounting platform, an annular mounting frame, a CNC motor, a crossbar, a bearing, a mixing tank, curved support rods, and an annular guide rail. The annular mounting frame is fixedly connected to the bottom of the mounting platform, the CNC motor is fixedly connected to the annular mounting frame, the output shaft of the CNC motor is keyed to the crossbar, the outer ring of the bearing is fixedly connected to one side of the crossbar, the inner ring of the bearing is keyed to the outer wall of the mixing tank, several curved support rods are evenly distributed and fixedly connected to the lower part of the mounting platform, and the lower part of the curved support rods are all fixedly connected to the annular guide rail. The mixing tank is in frictional contact with the annular guide rail at a 45-degree incline, and the coefficient of friction between the mixing tank and the annular guide rail is sufficient to support the rotation of the mixing tank.

[0006] In a preferred embodiment of the present invention, a gear ring assembly is further included, and the gear ring assembly is provided on the curved support rod; the gear ring assembly includes a first inner gear ring and an outer gear ring, the first inner gear ring is fixedly connected to the middle of the curved support rod, the outer gear ring is fixedly connected to the outer wall of the mixing tank, and the outer gear ring and the first inner gear ring mesh and drive each other.

[0007] In a preferred embodiment of the present invention, a differential stirring assembly is further included, wherein the differential stirring assembly is provided on the curved support rod; the differential stirring assembly includes a second internal gear ring, a gear and a stirring frame, the top of the curved support rod is fixedly connected to the second internal gear ring, the stirring frame is rotatably connected inside the stirring tank, the central shaft of the stirring frame passes through the tank body of the stirring tank, the top of the part of the central shaft that passes through is keyed to a gear, the gear and the second internal gear ring mesh, and the ratio of the number of teeth of the gear and the external gear ring is not greater than 1:3.

[0008] In a preferred embodiment of the present invention, a counterweight assembly is further included, wherein a counterweight assembly is provided on the side of the crossbar opposite to the bearing; the counterweight assembly includes a storage tank and counterweight blocks, the storage tank is fixedly connected to the side of the crossbar opposite to the bearing, and a plurality of counterweight blocks are placed inside the storage tank.

[0009] In a preferred embodiment of the present invention, the bottom ring surface of the annular mounting bracket has a groove, and convex plates are symmetrically fixed on the crossbar, with the convex plates and the groove engaging in sliding contact.

[0010] In a preferred embodiment of the present invention, a limiting component is further included. The limiting component is provided on the outer side wall of the storage tank. The limiting component includes a wedge block, a strip handle, and a first spring. A plurality of through slots are opened on the outer side wall of the storage tank. The wedge block is slidably connected in each through slot. The wedge block is fixedly connected to the strip handle. The strip handle and the outer side wall of the storage tank are fixedly connected to the first spring. The wedge block and the counterweight block are in contact.

[0011] In a preferred embodiment of the present invention, a metering component is further included, which is provided on the top of the mounting platform. The metering component includes a conical support block, a pointer, a measuring cup, a telescopic tube, a storage cylinder, and a second spring. The conical support block is slidably connected to the mounting platform, and several telescopic tubes are fixedly connected to the mounting platform. A second spring is provided inside each telescopic tube. The top of the movable tubes of the telescopic tubes are all fixedly connected to the storage cylinder. A valve is provided at the bottom of the storage cylinder. The measuring cup is movably connected to the mounting platform, and the pointer is hinged to the outer wall of the storage cylinder. The middle part of the pointer is placed on the top of the conical support block, and the end of the pointer points to the scale of the measuring cup.

[0012] In a preferred embodiment of the present invention, a folded tube is also included. A valve at the bottom of the storage cylinder is connected to the folded tube, which penetrates the surface of the mounting platform and extends to connect with the feeding port of the mixing tank.

[0013] The present invention has the following advantages: by rotating the stirring tank, the high-density substances inside the tank are tumbled and mixed with other low-density substances, and the stirring rack inside rotates and stirs more rapidly, which can make the hydrochloric acid solution fully exert the effect of chemical reaction and reduce the mixing difficulty when preparing doped tungsten wire.

[0014] The use of a counterweight assembly, with a counterweight block set on one side of the crossbar, allows for placement based on the weight of the mixture, achieving weight balance and preventing the rotor of the CNC motor from shifting off-center during rotation, thus extending the service life of the CNC motor. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention.

[0017] Figure 3 This is a three-dimensional structural diagram of the gear ring assembly of the present invention.

[0018] Figure 4 This is a three-dimensional structural diagram of the counterweight component of the present invention.

[0019] Figure 5 This is a three-dimensional structural diagram of the limiting component of the present invention.

[0020] Figure 6 This is a three-dimensional structural diagram of the differential stirring assembly of the present invention.

[0021] Figure 7 This is a three-dimensional structural diagram of the second external gear ring, gear, and stirring frame of the present invention.

[0022] Figure 8 This is a three-dimensional structural diagram of the metering component of the present invention.

[0023] Figure 9 This is a three-dimensional structural diagram of the telescopic tube, storage cylinder, second spring, and folding tube of the present invention.

[0024] The components are: 1-mounting platform, 2-ring mounting frame, 3-CNC motor, 4-crossbar, 41-bearing, 42-convex plate, 5-mixing tank, 6-curved support rod, 7-ring guide rail, 8-gear ring assembly, 81-first internal gear ring, 82-external gear ring, 9-counterweight assembly, 91-storage tank, 92-counterweight block, 10-limiting assembly, 101-wedge block, 102-strip handle, 103-first spring, 11-differential mixing assembly, 111-second internal gear ring, 112-gear, 113-mixing frame, 12-metering assembly, 121-conical support block, 122-pointer, 123-measuring cup, 124-telescopic tube, 125-storage cylinder, 126-second spring, 13-folding tube. Detailed Implementation

[0025] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0026] Example 1

[0027] A tungsten powder auxiliary mixing device for tungsten wire processing, such as Figure 1 , Figure 2 As shown, the assembly includes a mounting platform 1, an annular mounting frame 2, a CNC motor 3, a crossbar 4, a bearing 41, a mixing tank 5, curved support rods 6, and an annular guide rail 7. The annular mounting frame 2 is welded to the bottom of the mounting platform 1. The CNC motor 3 is mounted inside the annular mounting frame 2 by a welded bracket. The output shaft of the CNC motor 3 is keyed to the middle of the crossbar 4. The outer ring of the bearing 41 is welded to the right side of the crossbar 4, and the inner ring of the bearing 41 is keyed to the outer wall of the mixing tank 5. Four curved support rods 6 are evenly distributed and fixed to the lower part of the mounting platform 1. The lower part of the four curved support rods 6 is welded together with the annular guide rail 7. The mixing tank 5 is in frictional contact with the annular guide rail 7 at a 45-degree incline. The friction coefficient between the mixing tank 5 and the annular guide rail 7 allows the mixing tank 5 to rotate along the trajectory of the annular guide rail 7. After the CNC motor 3 starts working, the crossbar 4 carries the bearing 41 and the tilted mixing tank 5 to rotate and displace, and provides a stable movement trajectory for the mixing tank 5 during the rotational contact between the mixing tank 5 and the annular guide rail 7.

[0028] like Figure 1 , Figure 3 As shown, it also includes a gear ring assembly 8, which is provided on the curved support rod 6; the gear ring assembly 8 includes a first internal gear ring 81 and an external gear ring 82, the middle of the four curved support rods 6 are fixed to the first internal gear ring 81, the external gear ring 82 is keyed to the outer wall of the mixing tank 5, the external gear ring 82 and the first internal gear ring 81 mesh and drive each other, and with the rotational displacement of the mixing tank 5, the mixing tank 5 begins to rotate stably on its own under the action of the external gear ring 82 and the bearing 41.

[0029] like Figure 1 , Figure 6 , Figure 7 As shown, it also includes a differential stirring assembly 11, which is mounted on the curved support rod 6. The differential stirring assembly 11 includes a second internal gear ring 111, a gear 112, and a stirring frame 113. The tops of the four curved support rods 6 are welded together with the second internal gear ring 111. The stirring frame 113 is rotatably connected inside the mixing tank 5. The stirring frame 113 consists of a central shaft and irregularly shaped rods welded to the central shaft to achieve better mixing and avoid vortex formation. The central shaft of the stirring frame 113 passes through the tank body of the mixing tank 5, and the top of the part of the central shaft that passes through is keyed to the gear 112. The gear 112 meshes with the second internal gear ring 111. In this embodiment, the gear ratio of the gear 112 to the external gear ring 82 is 1:4, that is, the stirring frame 113 rotates four times for every one rotation of the mixing tank 5.

[0030] Various powdered substances and solvents, which have been proportioned for preparing doped tungsten wires, are sequentially poured into the mixing tank 5. The CNC motor 3 is started, and the crossbar 4 rotates, causing the mixing tank 5 to move along the rotation trajectory. The external gear 112 and the first internal gear 112 of the tank body mesh and drive the mixing tank 5 to rotate during the displacement process, achieving rotational mixing of the substances inside the tank. While the mixing tank 5 rotates during the displacement process, the gear 112, under the action of the second external gear 112, causes the stirring frame 113 to rotate. When the mixing tank 5 rotates once, the stirring frame 113 rotates four times. This rotation of the mixing tank 5 causes the high-density substances inside to tumble and mix with other low-density substances. The stirring frame 113 performs faster rotational stirring inside, which allows the hydrochloric acid solution to fully exert its chemical reaction effect and reduces the mixing difficulty when preparing doped tungsten wires.

[0031] Example 2

[0032] Based on Example 1, such as Figure 1 , Figure 4 As shown, it also includes a counterweight assembly 9. The counterweight assembly 9 is provided on the left side of the crossbar 4 relative to the bearing 41. The counterweight assembly 9 includes a storage tank 91 and counterweight blocks 92. The storage tank 91 is welded on the left side of the crossbar 4 relative to the bearing 41, and five counterweight blocks 92 are placed inside the storage tank 91.

[0033] Because the mixing tank 5 is installed on the right side of the crossbar 4, it has a certain weight after various powdery substances and solvents are added. When the CNC motor 3 is working, the weight on both sides of the crossbar 4 becomes seriously unbalanced, causing the rotor to deviate from its axis during rotation, resulting in severe wear and reducing the service life of the CNC motor 3. By selectively placing counterweights 92 in the storage tank 9 according to the weight of the substances added in the mixing tank 5, the weight error on both sides of the crossbar 4 can be reduced, thereby protecting the rotor and extending the service life of the CNC motor 3.

[0034] like Figure 2 , Figure 4 As shown, the bottom ring surface of the annular mounting bracket 2 has a groove, and the crossbar 4 is symmetrically fixed with a protruding plate 42, which is in sliding contact with the groove.

[0035] When the crossbar 4 rotates, the convex plate 42 slides along the annular groove at the bottom of the annular mounting bracket 2, causing the crossbar 4 to deflect during rotation, making the rotation process more stable.

[0036] like Figure 4 , Figure 5As shown, it also includes a limiting component 10. The limiting component 10 is provided on the outer side wall of the storage tank 91. The limiting component 10 includes a wedge block 101, a strip handle 102 and a first spring 103. Five through slots are opened on the outer side wall of the storage tank 91. The wedge block 101 is slidably connected in each of the five through slots. The strip handle 102 is welded together with the five wedge blocks 101. The first spring 103 is fixed between the strip handle 102 and the outer side wall of the storage tank 91. In the initial state, the first spring 103 maintains the force of the wedge block 101 sliding into the through slot. The wedge block 101 and the counterweight block 92 are in contact.

[0037] To prevent the counterweight 92 from being thrown out during rotation, after the counterweight 92 is placed in the storage tank 9, the counterweight 92 is limited and fixed by the wedge block 101 to avoid the risk of the counterweight 92 being thrown out during rotation.

[0038] like Figure 1 , Figure 8 As shown, it also includes a metering component 12, which is provided on the top of the mounting platform 1. The metering component 12 includes a conical support block 121, a pointer 122, a measuring cup 123, a telescopic tube 124, a storage cylinder 125, and a second spring 126. The conical support block 121 is slidably connected to the platform of the mounting platform 1. The top of the conical support block 121 has an arc-shaped notch. Four telescopic tubes 124 are welded to the top of the platform of the mounting platform 1. The second spring 126 is provided inside the telescopic tubes 124. The top of the movable tubes of the four telescopic tubes 124 are welded together to the storage cylinder 125. The bottom of the storage cylinder 125 is connected to a valve. The measuring cup 123 is movably connected to the platform of the mounting platform 1. The pointer 122 is hinged to the outer wall of the storage cylinder 125. The middle part of the pointer 122 is placed at the arc-shaped notch at the top of the conical support block 121, and the end of the pointer 122 points to the scale of the measuring cup 123.

[0039] After ammonium metatungstate is poured into the storage cylinder 125, since the remaining dopants are proportioned according to the amount of ammonium metatungstate, the pointer 122 placed on the top of the conical support block 121 can be pressed down by the storage cylinder 125 to observe the scale value of the measuring cup 123 pointed to by the pointer 122. The corresponding dopants can be added accordingly, and the proportion of different dopants can be adjusted by sliding the conical support block 121 below the pointer.

[0040] like Figure 2 , Figure 9 As shown, it also includes a folded pipe 13. The valve at the bottom of the storage cylinder 125 is connected to the folded pipe 13. The folded pipe 13 penetrates the table surface of the mounting platform 1 and can be extended to connect with the feeding port of the mixing tank 5.

[0041] After the powdered tungsten powder is prepared, the folded tube 13 is stretched and connected to the feeding port of the mixing tank 5. The valve at the bottom of the storage cylinder 125 is opened, and the material inside the storage cylinder 125 is poured into the mixing tank 5. Then the mixing tank is closed.

[0042] It should be understood that the above description is for illustrative purposes only and is not intended to limit the invention. Those skilled in the art will understand that variations of the invention are included within the scope of the claims herein.

Claims

1. A tungsten powder auxiliary mixing device for tungsten wire processing, comprising a mounting platform (1), an annular mounting frame (2), and a CNC motor (3), wherein the annular mounting frame (2) is fixedly connected to the bottom of the mounting platform (1), and the CNC motor (3) is fixedly connected to the annular mounting frame (2), characterized in that, It also includes a crossbar (4), a bearing (41), a mixing tank (5), a curved support rod (6), and an annular guide rail (7). The output shaft of the CNC motor (3) is connected to the crossbar (4) via a key. The outer ring of the bearing (41) is fixed to one side of the crossbar (4), and the inner ring of the bearing (41) is keyed to the outer wall of the mixing tank (5). Several curved support rods (6) are evenly distributed and fixed to the lower part of the mounting platform (1). The lower part of the curved support rods (6) is jointly fixed to the annular guide rail (7). The mixing tank (5) is in frictional contact with the annular guide rail (7) at a 45-degree inclination. The friction coefficient between the mixing tank (5) and the annular guide rail (7) can support the rotation of the mixing tank (5). It also includes a gear ring assembly (8). The curved support rod (6) is provided with a gear ring assembly (8). The gear ring assembly (8) includes a first inner gear ring (81) and an outer gear ring (82). The curved support rod (6) The first internal gear ring (81) is fixedly connected in the middle, and the outer gear ring (82) is fixedly connected on the outer wall of the mixing tank (5). The outer gear ring (82) and the first internal gear ring (81) mesh and drive each other. It also includes a differential stirring assembly (11). The differential stirring assembly (11) is provided on the curved support rod (6). The differential stirring assembly (11) includes a second internal gear ring (111), a gear (112) and a stirring frame (113). The second internal gear ring (111) is fixedly connected to the top of the curved support rod (6). The stirring frame (113) is rotatably connected inside the mixing tank (5). The central shaft of the stirring frame (113) passes through the tank body of the mixing tank (5). The top of the part through which the central shaft passes is keyed to the gear (112). The gear (112) meshes with the second internal gear ring (111). The ratio of the number of teeth of the gear (112) to the number of teeth of the outer gear ring (82) is not greater than 1:

3.

2. The tungsten powder auxiliary mixing device for tungsten wire processing according to claim 1, characterized in that, It also includes a counterweight assembly (9), on the side of the crossbar (4) opposite to the bearing (41) the counterweight assembly (9); the counterweight assembly (9) includes a storage tank (91) and counterweight blocks (92), the storage tank (91) is fixedly connected to the side of the crossbar (4) opposite to the bearing (41), and several counterweight blocks (92) are placed inside the storage tank (91).

3. The tungsten powder auxiliary mixing device for tungsten wire processing according to claim 2, characterized in that, The bottom ring of the mounting bracket (2) has a groove, and the crossbar (4) is symmetrically fixed with a protrusion (42), which slides in contact with the groove.

4. The tungsten powder auxiliary mixing device for tungsten wire processing according to claim 3, characterized in that, It also includes a limiting component (10), which is provided on the outer side wall of the storage tank (91); the limiting component (10) includes a wedge block (101), a strip handle (102) and a first spring (103). Several through slots are opened on the outer side wall of the storage tank (91), and the wedge block (101) is slidably connected in the through slots. The wedge block (101) is fixedly connected to the strip handle (102). The strip handle (102) and the outer side wall of the storage tank (91) are fixedly connected to the first spring (103). The wedge block (101) and the counterweight (92) are in contact.

5. A tungsten powder auxiliary mixing device for tungsten wire processing according to claim 4, characterized in that, It also includes a metering component (12), which is provided on the top of the mounting platform (1); the metering component (12) includes a conical support block (121), a pointer (122), a measuring cup (123), a telescopic tube (124), a storage cylinder (125), and a second spring (126). The conical support block (121) is slidably connected to the mounting platform (1), and several telescopic tubes (124) are fixedly connected to the mounting platform (1). The second spring (126) is provided inside the telescopic tube (124). The top of the movable tube of the telescopic tube (124) is fixedly connected to the storage cylinder (125). The bottom of the storage cylinder (125) is provided with a valve. The measuring cup (123) is movably connected to the mounting platform (1). The pointer (122) is hinged to the outer wall of the storage cylinder (125). The middle part of the pointer (122) is placed on the top of the conical support block (121), and the end of the pointer (122) points to the scale of the measuring cup (123).

6. The tungsten powder auxiliary mixing device for tungsten wire processing according to claim 5, characterized in that, It also includes a folded pipe (13), and the valve at the bottom of the storage cylinder (125) is connected to the folded pipe (13). The folded pipe (13) penetrates the table surface of the mounting platform (1), and the folded pipe (13) extends to connect with the feeding port of the mixing tank (5).

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