A long tungsten rod powder forming machine

Abstract

The present invention belongs to the field of powder forming machines, and specifically relates to a long tungsten rod powder forming machine, comprising: a box; a mold structure, the mold structure is installed on the box; a pressing structure, the pressing structure is installed on the box; the mold structure includes a movable upper mold part and a movable lower mold part; the movable upper mold part and the movable lower mold part are both provided with a pressing cavity, and when the movable upper mold part and the movable lower mold part are matched, a spherical cavity with a diameter larger than the pressing cavity is formed between the two pressing cavities. A spherical cavity with a diameter larger than the pressing cavity is also provided between the two pressing cavities, so after filling the powder material, the spherical cavity will also be filled with powder, and a circle of protrusions will be formed in the middle of the formed tungsten rod, because the tungsten rod needs to be calcined and then cooled, and will be deformed in the middle position, and the protrusion prevents the deformation of the middle position of the tungsten rod during calcination, and it is also easy to demold the pressed tungsten rod.

Description

Technical Field

[0001] The invention belongs to the field of powder forming machines, and in particular relates to a long tungsten rod powder forming machine. Background Art

[0002] Tungsten rod is a long rod-shaped material made of tungsten metal with extremely high melting point and thermal stability. Due to its unique physical and chemical properties, tungsten rod is widely used in many fields. It is generally made of powder material through a pressing mechanism and then calcined.

[0003] Most of the traditional tungsten rod powder forming machines are horizontal pressing, such as a pressing forming machine for tungsten rod production with convenient discharging disclosed in publication number CN 219616679U. The horizontal pressing must ensure that each part is under force, and the required pressing components are larger, resulting in increased costs. The horizontal pressing easily causes an edge to be formed at the joint of the two pressing components when pressing, and it needs to be polished again. In addition, the tungsten rods pressed by the mold of the device powder are all cylindrical with the same inner diameter. The processed tungsten rods need to be calcined and then cooled, so they are easy to deform in the middle position and are not easy to demold. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a long tungsten rod powder forming machine to solve the problem that most of the traditional tungsten rod powder forming machines are lateral pressing. The lateral pressing must ensure that each part is subjected to force, and the required pressing components are larger, resulting in increased costs. The lateral pressing easily causes an edge to be formed at the joint of two pressing components during pressing. The tungsten rods pressed by the mold of the device powder are all cylindrical in shape with the same inner diameter. The processed tungsten rod needs to be calcined and then cooled, so it is easy to deform in the middle position and is not easy to demold.

[0005] A long tungsten rod powder forming machine according to an embodiment of the present invention is used to press powdered materials into a tungsten rod, comprising:

[0006] Box;

[0007] A mold structure, wherein the mold structure is mounted on the box body;

[0008] A pressing structure, which is installed on the box body and is used for pressing the tungsten rod into shape;

[0009] Wherein, the mold structure comprises a movable upper mold part and a movable lower mold part;

[0010] The movable upper mold part and the movable lower mold part are both provided with a pressing cavity, the pressing cavity on the movable upper mold part is provided with a first semi-arc cavity, the maximum diameter of the first semi-arc cavity is greater than the diameter of the pressing cavity, and the pressing cavity on the movable lower mold part is provided with a second semi-arc cavity, the maximum diameter of the second semi-arc cavity is greater than the diameter of the pressing cavity;

[0011] When the movable upper mold part is matched with the movable lower mold part, the first semi-arc-shaped cavity and the second semi-arc-shaped cavity form a spherical cavity.

[0012] The invention discloses a long tungsten rod powder forming machine. The box body carries the mold structure and the pressing structure. The movable upper mold part and the movable lower mold part are installed separately. Therefore, after moving one of the molds, the pressed tungsten rod can be conveniently taken out. Therefore, the pressed tungsten rod can be easily demolded. Moreover, the length of the pressed tungsten rod can be adjusted by moving the movable lower mold part. Therefore, the invention can also press longer tungsten rods. A spherical cavity with a diameter larger than the pressed cavity is also provided between the two pressed cavities. Therefore, after filling the powder material, the spherical cavity is also filled with powder. A circle of protrusions is formed in the middle of the formed tungsten rod. Because the tungsten rod needs to be calcined and then cooled, it will deform and become thinner in the middle position. The spherical cavity is provided in the middle to well prevent the deformation of the middle position of the tungsten rod during calcination. The upper and lower pressing can well solve the problem that lateral pressing easily causes an edge to be formed at the joint of the two pressing components during pressing, and the problem that grinding is required again.

[0013] According to some embodiments of the present invention, further comprising a feeding structure;

[0014] The feeding structure comprises a feeding tank, a valve, a driving component and a movable rod;

[0015] The feeding tank is installed on the box body;

[0016] The valve is installed on the feeding tank;

[0017] The driving component is installed on the box body and is located below the feeding tank;

[0018] One end of the movable rod is mounted on the driving component, and a feed box is mounted on one end of the movable rod away from the driving component;

[0019] A plurality of feed pipes are arranged on the top of the feed box, and the feed pipes are used to connect to an external conduit.

[0020] According to some embodiments of the present invention, the movable upper mold component includes a lifting component, a movable plate, a plurality of limit rods and an upper mold body;

[0021] The lifting component is installed on the box body;

[0022] The movable plate is arranged on the lifting component;

[0023] A plurality of the limiting rods are fixedly arranged on the box body, and the movable plate is movably connected to the limiting rods through a lifting component;

[0024] The upper mold body is fixedly arranged on the movable plate.

[0025] According to some embodiments of the present invention, the movable lower mold component includes a lifting platform, a plurality of connecting columns, a mounting platform and a lower mold body;

[0026] The lifting platform is installed on the box body, the lifting component is installed with a limiting component, and the lifting end of the lifting platform is sleeved on the limiting component and movably connected to the limiting component;

[0027] One end of each of the plurality of connecting columns is fixedly disposed on the lifting end of the lifting platform;

[0028] The mounting platform is fixedly arranged at one end of the plurality of connecting columns away from the lifting platform and is movably connected to the plurality of limiting rods;

[0029] The lower mold body is mounted on the mounting platform and is located below the upper mold body, and the central axis of the lower mold body coincides with the central axis of the upper mold body.

[0030] According to some embodiments of the present invention, further comprising a blocking mechanism;

[0031] The blocking mechanism includes a fixing platform, a reinforcement member and a blocking column;

[0032] The top of the fixing platform is fixedly connected to one end of the plurality of limiting rods away from the box body, and one side of the fixing platform is fixedly connected to the box body;

[0033] The reinforcement member is fixedly arranged on the fixing platform;

[0034] The blocking column is fixedly mounted on a side of the reinforcement member away from the fixing platform, and the central axes of the reinforcement member and the blocking column coincide with the central axes of the upper mold body and the lower mold body.

[0035] According to some embodiments of the present invention, the blocking column is partially located in the pressing cavity of the movable lower mold part.

[0036] According to some embodiments of the present invention, the pressing structure includes a driving member, a limiting plate and a pressing column assembly;

[0037] The driving member is mounted on the box body and is located above the upper mold component.

[0038] According to some embodiments of the present invention, a plurality of the limiting rods are movably connected to the limiting plate, and the limiting plate is fixedly disposed on the moving end of the driving member.

[0039] According to some embodiments of the present invention, the lower pressure column assembly is installed on a side of the limiting plate away from the driving member;

[0040] The pressing end of the pressing column assembly is fixedly connected to the driving end of the driving member;

[0041] The cross-sectional diameter of the pressing end of the pressing column assembly is consistent with the cross-sectional diameter of the pressing cavity, and the central axis of the pressing column assembly coincides with the central axis of the pressing cavity.

[0042] According to some embodiments of the present invention, a plurality of limiting columns are provided on the upper mold component, and a limiting hole matching the number of the plurality of limiting columns is opened on the movable lower mold component.

[0043] The long tungsten rod powder forming machine provided by the above technical solution has the following beneficial effects:

[0044] 1. A spherical chamber with a diameter larger than the pressing chamber is also set between the two pressing chambers. Therefore, after filling the powder material, the spherical chamber will also be filled with powder, and a circle of protrusions will be formed in the middle of the formed tungsten rod. Because the tungsten rod needs to be calcined and then cooled, it will deform and become thinner in the middle position. A spherical chamber is set in the middle. After pressing, the middle diameter of the tungsten rod will be slightly larger than the diameter of the part other than the middle of the tungsten rod, so it can well prevent the deformation of the middle position of the tungsten rod during calcination.

[0045] 2. The box supports the mold structure and the downward pressing structure, and the movable upper mold part and the movable lower mold part are installed separately. After moving one of the molds, the pressed tungsten rod can be easily taken out, so it is easy to demold the pressed tungsten rod.

[0046] 3. The length of the tungsten rod after pressing can be adjusted by moving the lower mold, so the length of the pressed tungsten rod can be adjusted as needed.

[0047] 4. Upper and lower pressing can effectively solve the problem that lateral pressing easily causes an edge to be formed at the joint of the two pressing components during pressing, which requires further polishing. Because after the upper mold body and the lower mold body are matched, they can be directly pressed together through the lower pressing structure without generating any redundant edge structure.

[0048] 5. The diameter of the spherical chamber is large. During the pressing process, the density in the middle part is more uniform. The powder will produce a force to squeeze the center of the tungsten rod, making the density in the middle part more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0050] Figure 1 The three-dimensional Figure 1 ;

[0051] Figure 2 for Figure 1 A magnified image of point A;

[0052] Figure 3 for Figure 1 The enlarged view of point B;

[0053] Figure 4 A three-dimensional diagram of a partial structure of the present invention;

[0054] Figure 5 for Figure 4 Enlarged view of point C;

[0055] Figure 6 It is a schematic diagram of the cross-sectional structure of the cooperation between the upper mold body and the lower mold body of the present invention;

[0056] Figure 7 It is a partial structural diagram of an embodiment of the present invention.

[0057] The markings in the figure are as follows:

[0058] 100, box body;

[0059] 200. Mould structure;

[0060] 210. Movable upper mold component;

[0061] 211, lifting component; 212, movable plate; 213, limiting rod; 214, upper mold body;

[0062] 215, limiting component; 216, limiting column;

[0063] 220, movable lower mold component;

[0064] 221, lifting platform; 222, connecting column; 223, mounting platform; 224, lower mold body; 225, limiting hole;

[0065] 230, pressed cavity; 240, spherical cavity;

[0066] 300, downward pressure structure;

[0067] 310, driving member; 320, limiting plate; 330, lower pressure column assembly;

[0068] 400, feeding structure;

[0069] 410, feeding tank; 420, valve; 430, driving component;

[0070] 440, movable rod; 441, feed box; 442, feed pipe;

[0071] 500, blocking mechanism;

[0072] 510, fixing platform; 520, reinforcing member; 530, blocking column;

[0073] 600, rotating rod;

[0074] 700. Cylindrical cylinder. DETAILED DESCRIPTION

[0075] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0076] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0077] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0078] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0079] Combination Figures 1 to 6 As shown, a long tungsten rod powder forming machine of the present invention is used for pressing powdered materials to form a tungsten rod, comprising:

[0080] Box 100;

[0081] A mold structure 200, wherein the mold structure 200 is installed on the box body 100;

[0082] A pressing structure 300, which is installed on the box body 100 and is used for pressing the tungsten rod into shape;

[0083] The mold structure 200 includes a movable upper mold part 210 and a movable lower mold part 220;

[0084] The movable upper mold part 210 and the movable lower mold part 220 are both provided with a pressing cavity 230, the pressing cavity 230 on the movable upper mold part 210 is provided with a first semi-arc-shaped cavity, the maximum diameter of which is greater than the diameter of the pressing cavity 230, and the pressing cavity 230 on the movable lower mold part 220 is provided with a second semi-arc-shaped cavity, the maximum diameter of which is greater than the diameter of the pressing cavity 230;

[0085] When the movable upper mold part 210 is matched with the movable lower mold part 220 , the first semi-arc-shaped cavity and the second semi-arc-shaped cavity form a spherical cavity 240 .

[0086] The present invention relates to a long tungsten rod powder forming machine. The box body 100 carries the mold structure 200 and the pressing structure 300. The movable upper mold part 210 and the movable lower mold part 220 are installed separately. Therefore, after moving one of the molds, the pressed tungsten rod can be conveniently taken out. Therefore, it is easy to demould the pressed tungsten rod. By moving the movable lower mold part 220, the length of the pressed tungsten rod can be adjusted. Therefore, the present invention can also press longer tungsten rods. A cavity 230 with a diameter larger than the pressing cavity 230 is provided between the two pressing cavities. The spherical chamber 240 is formed in the tungsten rod. Therefore, after the powder material is filled, the spherical chamber 240 will also be filled with powder, and a circle of protrusions will be formed in the middle of the formed tungsten rod. Because the tungsten rod needs to be calcined and then cooled, it will deform and become thinner in the middle. The spherical chamber 240 is set in the middle. After pressing, the middle diameter of the tungsten rod will be slightly larger than the diameter of the part other than the middle of the tungsten rod. Therefore, it can well prevent the deformation of the middle position of the tungsten rod during calcination. The upper and lower pressing solves the problem that lateral pressing easily causes an edge to be formed at the joint of the two pressing components during pressing.

[0087] In this embodiment, after the movable upper mold part 210 and the movable lower mold part 220 are matched, the powder is poured into the mold and then pressed into shape. The connection between the spherical cavity 240 and the two pressing cavities 230 is an arc portion, so the spherical cavity 240 can also be completely filled when filling the powder.

[0088] It should be noted that the spherical chamber 240 does not protrude excessively to both sides, so there will be no problem of powder being unable to fill the spherical chamber 240 when filling powder. The spherical chamber 240 is composed of a first semi-arc cavity and a second semi-arc cavity. When combined, the movable upper mold part 210 and the movable lower mold part 220 are in a mating state.

[0089] In one embodiment, a feeding structure 400 is also included;

[0090] The feeding structure 400 includes a feeding tank 410, a valve 420, a driving component 430 and a movable rod 440;

[0091] The feeding tank 410 is installed on the box body 100;

[0092] The valve 420 is installed on the feeding tank 410;

[0093] The driving component 430 is installed on the box body 100 and is located below the feeding tank 410;

[0094] One end of the movable rod 440 is mounted on the driving component 430, and a feed box 441 is mounted on the end of the movable rod 440 away from the driving component 430;

[0095] A plurality of feed pipes 442 are disposed on the top of the feed box 441 , and the feed pipes 442 are used to connect to an external conduit.

[0096] In this embodiment, the powder materials are placed in the feeding tank 410, and the outflow of the powder materials is controlled by the valve 420. The feeding tank 410 needs to be connected to the feeding pipe 442 through an external conduit. The feed box 441 is located on the top of the movable upper mold component 210 when feeding powder. The position of the feed box 441 can be adjusted by the driving component 430. The driving component 430 can be a cylinder, a servo motor or other components that can adjust the movable rod 440 and the feed box 441, and is not limited here.

[0097] It should be noted that if Figure 7 As shown, the driving component 430 of the present invention adopts the linkage of a servo motor and a cylinder to drive the movable rod 440 to rise and fall and translate. A rotating rod 600 is fixedly arranged on the output shaft of the servo motor, and the rotating rod 600 is rotatably connected to the movable rod 440. The cylinder is a cylindrical cylinder 700, and one end of the cylindrical cylinder 700 is rotatably connected to the box body 100, and the other end is rotatably connected to the end of the movable rod 440 away from the feed box 441. The height of the feed box 441 can be adjusted by adjusting the cylinder, and the horizontal movement of the feed box 441 can be adjusted by adjusting the servo motor. Because this scheme is not the focus of the present invention, it is not specifically described in the claims. The description here is for the convenience of understanding the overall scheme.

[0098] In one embodiment, the movable upper mold component 210 includes a lifting component 211, a movable plate 212, a plurality of limiting rods 213 and an upper mold body 214;

[0099] The lifting component 211 is installed on the box body 100;

[0100] The movable plate 212 is disposed on the lifting component 211;

[0101] A plurality of the limiting rods 213 are fixedly arranged on the box body 100, and the movable plate 212 is movably connected to the limiting rods 213 via a lifting component 211;

[0102] The upper mold body 214 is fixedly disposed on the movable plate 212 .

[0103] In this embodiment, the lifting component 211 can be a component driven by a screw rod, a cylinder or other components that can lift the movable plate 212. This is not a sole limitation. After the lifting component 211 is started, it drives the movable plate 212 to move on the limiting rod 213. The limiting rod 213 limits the movable plate 212 and prevents the mold from shifting when the mold is matched, resulting in waste during pressing. After the movable plate 212 moves, it also drives the upper mold body 214 to move. The upper mold body 214 is used to cooperate with the movable lower mold component 220.

[0104] In one embodiment, the movable lower mold component 220 includes a lifting platform 221, a plurality of connecting columns 222, a mounting platform 223 and a lower mold body 224;

[0105] The lifting platform 221 is installed on the box body 100, and the lifting component 211 is installed with a limiting component 215. The lifting end of the lifting platform 221 is sleeved on the limiting component 215 and movably connected to the limiting component 215.

[0106] One end of each of the connecting columns 222 is fixedly disposed on the lifting end of the lifting platform 221;

[0107] The mounting platform 223 is fixedly disposed on one end of the plurality of connecting columns 222 away from the lifting platform 221 and is movably connected to the plurality of limiting rods 213;

[0108] The lower mold body 224 is installed on the installation platform 223 and is located below the upper mold body 214 . The central axis of the lower mold body 224 coincides with the central axis of the upper mold body 214 .

[0109] In this embodiment, the lifting platform 221 can be driven by a screw rod, a cylinder or other components that can lift the movable plate 212. No sole limitation is made here. The lifting platform 221 is used to drive the connecting column 222, the mounting platform 223 and the lower mold body 224 to rise and fall. The mounting platform 223 and the movable plate 212 are both movably connected to the limit rod 213, so that the upper mold body 214 and the lower mold body 224 will not be skewed when they are matched, which can better prevent the formation of waste after pressing and improve the yield of tungsten rods.

[0110] In one embodiment, a blocking mechanism 500 is also included;

[0111] The blocking mechanism 500 includes a fixing platform 510, a reinforcement member 520 and a blocking column 530;

[0112] The top of the fixing platform 510 is fixedly connected to one end of the plurality of limiting rods 213 away from the box body 100, and one side of the fixing platform 510 is fixedly connected to the box body 100;

[0113] The reinforcement member 520 is fixedly disposed on the fixing platform 510;

[0114] The blocking column 530 is fixedly mounted on a side of the reinforcement member 520 away from the fixing platform 510, and the central axes of the reinforcement member 520 and the blocking column 530 coincide with the central axes of the upper mold body 214 and the lower mold body 224;

[0115] The blocking column 530 is partially located in the pressing cavity 230 of the movable lower mold part 220 .

[0116] In this embodiment, the fixed platform 510 is used to support the reinforcement 520 and the blocking column 530. The fixed platform 510 is located below the lower mold body 224. The blocking column 530 is used to block the bottom of the pressing cavity 230 on the movable lower mold component 220 when the pressing structure 300 is pressed down to prevent powder leakage. After the height of the movable lower mold component 220 is adjusted, the position of the blocking column 530 in the pressing cavity 230 can be adjusted, so that tungsten rods of different lengths can be pressed.

[0117] It should be noted that when the upper mold body 214 and the lower mold body 224 are separated, both can be cleaned, which is easier to clean than traditional molds that cannot be separated.

[0118] In one embodiment, the pressing structure 300 includes a driving member 310, a limiting plate 320 and a pressing column assembly 330;

[0119] The driving member 310 is mounted on the box body 100 and is located above the upper mold component;

[0120] The plurality of limit rods 213 are movably connected to the limit plate 320, and the limit plate 320 is fixedly disposed on the moving end of the driving member 310;

[0121] The lower pressure column assembly 330 is installed on a side of the limiting plate 320 away from the driving member 310;

[0122] The pressing end of the pressing column assembly 330 is fixedly connected to the driving end of the driving member 310;

[0123] The cross-sectional diameter of the pressing end of the pressing column assembly 330 is consistent with the cross-sectional diameter of the pressing cavity 230 , and the central axis of the pressing column assembly 330 and the central axis of the pressing cavity 230 coincide with each other.

[0124] In this embodiment, the driving member 310 can be a component driven by a screw rod, a cylinder or other components that can move the limit plate 320. This is not a sole limitation. The driving member 310 can drive the limit plate 320 and the lower pressure column assembly 330 to move. The lower pressure column assembly 330 is used to penetrate into the pressing cavity 230 to extrude the powder. The powder is squeezed between the lower pressure column assembly 330 and the blocking column 530. The limit plate 320 is limited by the limit rod 213, so that the lower pressure column assembly 330 can be lifted and lowered more stably without large deviation.

[0125] In one embodiment, a plurality of limiting posts 216 are disposed on the upper mold component, and a limiting hole 225 matching the number of the limiting posts 216 is opened on the movable lower mold component 220 .

[0126] Working principle of the present invention:

[0127] The powder is connected to the external conduit through the feeding tube and enters the feeding pipe 442, and then enters the feeding box 441. The powder enters the pressing cavity 230 of the upper mold body 214 from the feeding box 441, and is blocked by the blocking column 530 when entering the pressing cavity 230 of the lower mold body 224. At this time, the driving member 310 is started, and the driving member 310 can drive the limiting plate 320 and the lower pressure column assembly 330 to move. The lower pressure column assembly 330 is used to penetrate into the pressing cavity 230 to extrude the powder. The powder is squeezed between the lower pressure column assembly 330 and the blocking column 530. After the extrusion is completed, the movable upper mold component 210 is moved. After the movement, the upper mold body 214 is separated from the lower mold body 224, and the pressed tungsten rod can be taken out after separation.

[0128] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the paper document and the contents of the drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A long tungsten rod powder forming machine, used for pressing powdered materials into tungsten rods, characterized in that: include: box(100); A mold structure (200), wherein the mold structure (200) is installed on the box body (100); A pressing structure (300), the pressing structure (300) being installed on the box body (100) and used for pressing the tungsten rod into shape, the pressing structure (300) comprising a pressing column assembly (330); Wherein, the mold structure (200) comprises a movable upper mold part (210) and a movable lower mold part (220); The movable upper mold component (210) and the movable lower mold component (220) are both provided with a pressing cavity (230); the pressing cavity (230) on the movable upper mold component (210) is provided with a first semi-arc-shaped cavity, the maximum diameter of the first semi-arc-shaped cavity is greater than the diameter of the pressing cavity (230); the pressing cavity (230) on the movable lower mold component (220) is provided with a second semi-arc-shaped cavity, the maximum diameter of the second semi-arc-shaped cavity is greater than the diameter of the pressing cavity (230); The cross-sectional diameter of the lower pressing end of the lower pressing column assembly (330) is consistent with the cross-sectional diameter of the pressing cavity (230), and the central axis of the lower pressing column assembly (330) and the central axis of the pressing cavity (230) coincide with each other; When the movable upper mold part (210) is matched with the movable lower mold part (220), a spherical cavity (240) is formed between the first semi-arc-shaped cavity and the second semi-arc-shaped cavity; The movable upper mold component (210) comprises a lifting component (211), a movable plate (212), a plurality of limiting rods (213) and an upper mold body (214); The lifting component (211) is installed on the box body (100); The movable plate (212) is arranged on the lifting component (211); A plurality of the limiting rods (213) are fixedly arranged on the box body (100), and the movable plate (212) is movably connected to the limiting rods (213) via a lifting component (211); The upper mold body (214) is fixedly arranged on the movable plate (212); The movable lower mold component (220) comprises a lifting platform (221), a plurality of connecting columns (222), a mounting platform (223) and a lower mold body (224); The lifting platform (221) is installed on the box body (100), the lifting component (211) is installed with a limiting component (215), and the lifting end of the lifting platform (221) is sleeved on the limiting component (215) and movably connected to the limiting component (215); One end of each of the plurality of connecting columns is fixedly disposed on a lifting end of the lifting platform (221); The mounting platform (223) is fixedly arranged at one end of the plurality of connecting columns away from the lifting platform (221) and is movably connected to the plurality of limiting rods (213); The lower mold body (224) is mounted on the mounting platform (223) and is located below the upper mold body (214), and the central axis of the lower mold body (224) coincides with the central axis of the upper mold body (214); Also included is a blocking mechanism (500); The blocking mechanism (500) comprises a fixing platform (510), a reinforcement member (520) and a blocking column (530); The top of the fixing platform (510) is fixedly connected to one end of the plurality of limiting rods (213) away from the box (100), and one side of the fixing platform (510) is fixedly connected to the box (100); The reinforcement member (520) is fixedly arranged on the fixing platform (510); The blocking column (530) is fixedly mounted on a side of the reinforcing member (520) away from the fixing platform (510), and the central axes of the reinforcing member (520) and the blocking column (530) coincide with the central axes of the upper mold body (214) and the lower mold body (224); The blocking column (530) is partially located in the pressing cavity (230) of the movable lower mold part (220).

2. A long tungsten rod powder forming machine as claimed in claim 1, characterized in that: Also included is a feeding structure (400); The feeding structure (400) comprises a feeding tank (410), a valve (420), a driving component (430) and a movable rod (440); The feeding tank (410) is installed on the box body (100); The valve (420) is installed on the feeding tank (410); The driving component (430) is mounted on the box body (100) and is located below the feeding tank (410); One end of the movable rod (440) is mounted on the driving component (430), and a feed box (441) is mounted on one end of the movable rod (440) away from the driving component (430); A plurality of feed pipes (442) are provided on the top of the feed box (441), and the feed pipes (442) are used to connect to an external conduit.

3. A long tungsten rod powder forming machine as claimed in claim 1, characterized in that: The pressing structure (300) further comprises a driving member (310), a limiting plate (320) and a pressing column assembly (330); The driving member (310) is mounted on the box body (100) and is located above the upper mold component.

4. A long tungsten rod powder forming machine as claimed in claim 3, characterized in that: The plurality of limit rods (213) are movably connected to the limit plate (320), and the limit plate (320) is fixedly arranged on the moving end of the driving member (310).

5. A long tungsten rod powder forming machine as claimed in claim 3, characterized in that: The lower pressure column assembly (330) is installed on a side of the limiting plate (320) away from the driving member (310); The pressing end of the pressing column assembly (330) is fixedly connected to the driving end of the driving member (310).

6. A long tungsten rod powder forming machine as claimed in claim 1, characterized in that: The upper mold component is provided with a plurality of limiting columns (216), and the movable lower mold component (220) is provided with limiting holes (225) whose number matches the plurality of limiting columns (216).

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