A pressing structure and its usage method

Abstract

This invention belongs to the field of powder molding equipment, specifically relating to a pressing structure and its usage method, comprising: a mounting housing; a pressure-bearing component mounted on the mounting housing; a pressing component mounted on the pressure-bearing component; a mold component mounted on the pressing component; a linkage mold mounted on the pressing component; a demolding component mounted on the mounting housing; and a mandrel assembly mounted on the mounting housing. The demolding component employs a screw lifting mechanism to precisely drive the mold component's movement, achieving rapid and stable demolding. Particularly noteworthy is that the mandrel assembly's lifting component is linked with the mold component during demolding, causing the mandrel to eject along with the product, avoiding frictional damage caused by direct separation between the product and the mandrel, significantly reducing product damage rate and improving product qualification rate.

Description

Technical Field

[0001] This invention belongs to the field of powder forming equipment, specifically relating to a pressing structure and its usage method. Background Technology

[0002] In the field of powder metal processing, traditional pressing equipment has many problems that urgently need to be solved. On the one hand, in the conventional pressing process, the die rises directly, so the powder is only subjected to pressure for a short time, which easily leads to expansion and a high defect rate.

[0003] Furthermore, during the demolding process, the powder product is under pressure in the cavity, resulting in significant friction between the powder product and the mandrel. Traditional demolding methods often force the product out directly, which can easily damage the molded product and further reduce the product qualification rate. In addition, traditional pressing equipment experiences significant tensile forces during the pressing of powder metal. If the pressure-bearing capacity is insufficient, it can lead to premature damage to equipment components and shorten the equipment's service life. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention provides a pressing structure to address the problems in conventional pressing processes. In conventional pressing, the mold rises directly, subjecting the powder to only brief pressure, which easily leads to expansion and a high defect rate. Furthermore, during demolding, the powder product is compressed by the cavity, creating significant friction between the powder and the mandrel. Traditional demolding methods often force the product out directly, easily damaging the molded product and further reducing the product yield. Additionally, traditional pressing equipment withstands significant tensile forces during powder metal pressing; insufficient pressure resistance can cause premature damage to equipment components and shorten the equipment's lifespan.

[0005] One embodiment of the present invention provides a pressing structure for pressing powdered metal, comprising:

[0006] Mounting housing;

[0007] A pressure-bearing assembly, which is mounted on the mounting housing;

[0008] A pressing assembly, which is mounted on the pressure-bearing assembly;

[0009] A mold assembly, which is mounted on the pressing assembly;

[0010] A linkage mold, which is mounted on the pressing assembly;

[0011] A demolding assembly, which is mounted on the mounting housing;

[0012] A mandrel assembly, the mandrel assembly being mounted on the mounting housing;

[0013] The pressing assembly includes an upper pressing assembly and a lower pressing assembly; the upper pressing assembly is mounted on the pressure-bearing assembly, and the lower pressing assembly is mounted on the mounting housing.

[0014] The pressure-bearing component is used to disperse the tensile force generated during compression;

[0015] The linkage mold is used to prevent powder from overflowing from the mold during reverse powder filling.

[0016] The mold assembly is used to shape the powder to be pressed;

[0017] The demolding component is used to move the mold component to demold the product.

[0018] The mandrel assembly is used for synchronous movement during product demolding;

[0019] The mandrel assembly includes a lifting assembly and a mandrel body. The lifting assembly is mounted on the mounting housing, and the mandrel body is mounted on the output end of the lifting assembly.

[0020] The pressure-bearing component includes a pressure-bearing frame, an upper pressure-bearing plate, several guide columns, a lower pressure-bearing plate, and several transverse support columns.

[0021] This invention provides a pressing structure in which a mold assembly is moved to the pressing position via a demolding assembly. After moving to the pressing position, powder is filled, and then the upper pressing assembly is activated. The upper pressing assembly presses down, while the lower pressing assembly is fixed to the lower pressure plate. During the pressing process, a mandrel stabilizes the entire device. During the pressing process, the linked mold keeps the pressing mold tightly against the mold assembly. Because the mold rises too quickly during the pressing process, the powder is only briefly stressed after pressing, and the rapid rise of the mold can cause the powder to expand (expansion due to insufficient pressure resistance). The powder pressing time can be controlled by setting the pressing time of the linked mold and the rising time of the upper pressing assembly. The linked mold only stops pressing when the upper pressing assembly rises to the limit point of the linked mold. The components are lifted together, and the mold rises before the product is demolded. During demolding, the demolding component is activated, which moves the mold component to demold the product. During this process, there is a certain friction between the mandrel and the formed powder product (because the powder is blocked by the cavity inside the mold component, resulting in a large friction between the powder product and the mandrel). If the product is directly demolded, it is likely to damage the formed product. Therefore, this invention simultaneously activates the lifting component to move the mandrel, which will be demolded along with the product (after demolding, the powder product is not blocked by the cavity on the mold component, making it easier to demold). Demolding the product afterward will be more stable. The pressure-bearing component bears the force generated when pressing the powder during the pressing process.

[0022] In one embodiment, the pressure-bearing frame is disposed on the mounting housing;

[0023] The upper pressure plate is fixedly mounted on the pressure-bearing assembly;

[0024] One end of each of the guide posts is fixedly disposed on the side of the upper pressure plate away from the pressure frame;

[0025] The lower pressure plate is fixedly mounted on the pressure frame, and the end of the guide column away from the upper pressure plate is fixedly mounted on the lower pressure plate, with the lower pressure plate located below the upper pressure plate.

[0026] Several of the aforementioned transverse support columns are disposed on the bearing frame;

[0027] The pressure-bearing frame is symmetrically provided with horizontal components, which are symmetrically and detachably installed on the pressure-bearing frame by bolts.

[0028] In one embodiment, the mold assembly is movably mounted on a plurality of the support columns;

[0029] The mold assembly is provided with a molding cavity.

[0030] In one embodiment, the upper pressing assembly includes a driving member and an upper pressing member;

[0031] The drive component is mounted on the pressure-bearing assembly;

[0032] The upper pressure component is installed at the output end of the driving component;

[0033] The upper pressure component is provided with an opening that matches the size of the mandrel.

[0034] In one embodiment, the pressing assembly includes a moving assembly and a fixed mold;

[0035] The movable component is fixedly mounted on the lower pressure plate;

[0036] The fixed mold is fixedly mounted on the output end of the movable component;

[0037] The fixed mold is provided with a pressing chamber, the mandrel part is located in the pressing chamber, and the central axis of the pressing chamber coincides with the central axis of the forming cavity.

[0038] In one embodiment, the linkage mold includes a cylinder, a movable plate, and an upper mold;

[0039] The cylinders are symmetrically arranged on the upper pressure component;

[0040] The movable plate is movably connected to several of the support columns, and one side of the movable plate is fixedly mounted on the output end of two of the cylinders.

[0041] The upper mold is fixedly mounted on the side of the movable plate away from the cylinder.

[0042] In one embodiment, the demolding assembly includes a lead screw lifting mechanism;

[0043] The lead screw lifting mechanism is mounted on the mounting housing;

[0044] The lifting end of the lead screw lifting mechanism is fixed to the mold assembly.

[0045] In one embodiment, the mandrel body portion is located in the compression chamber.

[0046] In one embodiment, the pressing chamber and the upper pressing member are located within the forming cavity during pressing.

[0047] One embodiment of the present invention provides a method of using a pressing structure, comprising:

[0048] A pressing structure as described in any one of the above embodiments, and

[0049] Steps for using a compression structure:

[0050] The mold assembly is moved to the pressing position via the demolding assembly. After being moved to the pressing position, powder is filled. After filling, the upper pressing assembly is activated, and the upper pressing assembly presses down. The lower pressing assembly is fixed on the lower pressure plate. During the pressing process, the mandrel stabilizes the entire equipment. During the pressing process, the linkage mold keeps the pressing mold tightly attached to the mold assembly. After the upper pressing assembly rises for a period of time, the linkage mold is retracted. At this time, the product is demolded. During the demolding process, the demolding assembly is activated, and the demolding assembly drives the mold assembly to move, thereby demolding the product. At the same time, the lifting assembly is activated to drive the mandrel to move. The mandrel will come out together with the product.

[0051] The pressing structure provided by the above technical solution has the following beneficial effects:

[0052] 1. The demolding assembly adopts a screw lifting mechanism to precisely drive the mold assembly to move, achieving fast and stable demolding. In particular, the lifting component of the mandrel assembly is linked with the mold assembly during the demolding process, so that the mandrel comes out with the product, avoiding friction damage caused by the direct separation of the product and the mandrel, greatly reducing the product damage rate and improving the product qualification rate.

[0053] 2. Through the controllable linkage mold, the pressing time and the coordination with the rising time of the upper pressing component can be precisely set, effectively solving the problem of powder expansion due to short pressing time and insufficient force, significantly reducing the defect rate. The linkage mold is always in close contact with the mold component during the pressing process, ensuring that the powder is formed under sufficient pressure, improving product quality and stability, and reducing raw material waste.

[0054] 3. The pressure frame, upper pressure plate, lower pressure plate, and horizontal support columns work together to effectively disperse the tensile force generated during pressing, greatly improving the pressure-bearing capacity of the pressing equipment. The pressure frame not only bears the tensile force itself, but also shares the pressure through the support base, bearing plate, and horizontal support columns to prevent the frame from denting. The guide columns ensure that the upper pressing components do not shift during pressing, and the horizontal components can be easily adjusted to ensure the level of the installation parts, ensuring stable pressing conditions, improving product yield, reducing equipment failure and maintenance costs, and extending the service life of the equipment. Attached Figure Description

[0055] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0056] Figure 1 This is a front view of the present invention;

[0057] Figure 2 This is a perspective view of the present invention;

[0058] Figure 3 for Figure 2 Enlarged view of point A;

[0059] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0060] Figure 5 This is a schematic diagram of the pressure-bearing frame of the present invention;

[0061] Figure 6 This is a partial structural diagram of the present invention. Figure 1 ;

[0062] Figure 7 for Figure 6 Enlarged view of point B;

[0063] Figure 8 This is a partial structural diagram of the present invention. Figure 2 ;

[0064] Figure 9 This is a partial structural diagram of the present invention. Figure 3;

[0065] Figure 10 This is a partial structural diagram of the present invention. Figure 4 ;

[0066] Figure 11 This is a diagram showing the stress points of the pressure-bearing frame of the present invention.

[0067] The markings in the diagram are explained as follows:

[0068] 100. Install the housing;

[0069] 200. Pressure-bearing components;

[0070] 210. Pressure-bearing frame; 211. Horizontal component;

[0071] 220. Upper bearing plate; 230. Guide column; 240. Lower bearing plate; 250. Lateral support column;

[0072] 300. Suppression components;

[0073] 310. Upper pressing component;

[0074] 311. Driving component; 312. Upper pressing component;

[0075] 320. Lower pressing component;

[0076] 321. Moving component; 322. Fixed mold; 323. Pressing chamber;

[0077] 400. Mold assembly; 410. Molding cavity;

[0078] 500, linkage mold;

[0079] 510. Cylinder; 520. Movable plate; 530. Upper mold;

[0080] 600. Demolding assembly;

[0081] 610. Screw lifting mechanism;

[0082] 700, mandrel assembly;

[0083] 710. Lifting assembly; 720. Core rod body. Detailed Implementation

[0084] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0085] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0086] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0087] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0088] Combination Figures 1 to 11 As shown, one embodiment of the present invention provides a pressing structure for pressing powdered metal, comprising:

[0089] Mounting housing 100;

[0090] Pressure-bearing component 200, which is mounted on the mounting housing 100;

[0091] A pressing component 300 is mounted on the pressure-bearing component 200;

[0092] A mold assembly 400 is mounted on the pressing assembly 300;

[0093] A linkage mold 500 is mounted on the pressing assembly 300;

[0094] Demolding assembly 600, which is mounted on the mounting housing 100;

[0095] Mandrel assembly 700, the mandrel assembly 700 being mounted on the mounting housing 100;

[0096] The pressing assembly 300 includes an upper pressing assembly 310 and a lower pressing assembly 320; the upper pressing assembly 310 is mounted on the pressure-bearing assembly 200, and the lower pressing assembly 320 is mounted on the mounting housing 100.

[0097] The pressure-bearing component 200 is used to disperse the tensile force generated during compression;

[0098] The linkage mold 500 is used to prevent powder from overflowing from the mold during reverse powder filling.

[0099] The mold assembly 400 is used to shape the powder to be pressed;

[0100] The demolding component 600 is used to move the mold component 400 to demold the product.

[0101] The mandrel assembly 700 is used for synchronous movement during product demolding;

[0102] The mandrel assembly 700 includes a lifting assembly 710 and a mandrel body 720. The lifting assembly 710 is mounted on the mounting housing 100, and the mandrel body 720 is mounted on the output end of the lifting assembly 710.

[0103] The pressure-bearing component 200 includes a pressure-bearing frame 210, an upper pressure-bearing plate 220, several guide columns 230, a lower pressure-bearing plate 240, and several transverse support columns 250.

[0104] In this embodiment of the invention, the mold assembly 400 is moved to the pressing position by the demolding assembly 600. After being moved to the pressing position, powder is filled. After powder filling, the upper pressing assembly 310 is activated, and the upper pressing assembly 310 presses down. The lower pressing assembly 320 is fixed on the lower pressure plate 240. During the pressing process, the entire device is stabilized by a mandrel. During the pressing process, the linkage mold 500 can keep the pressing mold in close contact with the mold assembly 400 for a period of time (this time is controllable and can be controlled by program control or other means). In general pressing processes, if the mold rises too quickly, the powder is only briefly stressed after pressing, which causes the powder to easily expand, resulting in defective products (expansion is due to not being pressed under pressure for a long time). The powder pressing time can be controlled by setting the pressing time of the linkage mold 500 and the rising time of the upper pressing assembly 310. When the forming component 310 rises to the boundary point of the linkage mold 500, the linkage mold 500 is also driven to rise. After the linkage mold 500 rises, the product is demolded. During the demolding process, the demolding component 600 is activated, which drives the mold component 400 to move, thereby demolding the product. During this process, there is a certain friction between the mandrel and the formed powder product (because the powder is blocked by the cavity in the mold component 400, resulting in a large friction between the powder product and the mandrel). If it is directly demolded, it is likely to damage the formed product. Therefore, the present invention simultaneously activates the lifting component 710 to drive the mandrel to move. The mandrel will be demolded along with the product (after demolding, the powder product is not blocked by the cavity on the mold component 400, making it easier to demold). Demolding the product afterward will be more stable. The pressure component 200 bears the force generated when pressing the powder during the pressing process.

[0105] In one embodiment, the pressure-bearing frame 210 is disposed on the mounting housing 100;

[0106] The upper pressure plate 220 is fixedly mounted on the pressure-bearing component 200;

[0107] One end of each of the guide posts 230 is fixedly disposed on the side of the upper pressure plate 220 away from the pressure frame 210;

[0108] The lower pressure plate 240 is fixedly mounted on the pressure frame 210, and the end of the guide column 230 away from the upper pressure plate 220 is fixedly mounted on the lower pressure plate 240, with the lower pressure plate 240 located below the lower pressure plate.

[0109] Several of the aforementioned transverse support columns 250 are disposed on the pressure-bearing frame 210;

[0110] A horizontal component 211 is symmetrically arranged on the pressure-bearing frame 210. The horizontal component 211 is symmetrically and detachably installed on the pressure-bearing frame 210 by bolts.

[0111] In this embodiment of the invention, the pressure-bearing frame 210 is used to withstand the tensile force when pressing powder, thereby improving the pressure-bearing capacity of the pressing equipment. The guide column 230 is used to ensure that the upper pressing assembly 310 does not shift during pressing. The transverse support column 250 increases the pressure-bearing capacity of the pressure plate and shares some of the tensile force with the pressure-bearing frame 210 (the force points are as follows). Figure 11 As shown in the figure, it maintained overall stability;

[0112] It should be noted that the pressure-bearing frame 210 is equipped with a support base that matches the size of the lower pressure-bearing plate 240. This support base also helps to distribute the pressure. Without the transverse support column 250, if the load-bearing frame could not withstand the tensile force of the pressure, the entire frame would sag towards the center point. The addition of the transverse support column 250 improves the overall load-bearing capacity. Furthermore, the portion of the pressure-bearing frame 210 near the top is integrally formed with a load-bearing plate (such as...). Figure 11 As shown in the diagram, the bearing plate is also designed to improve the overall pressure-bearing capacity, which is explained here.

[0113] Furthermore, such as Figure 7 As shown, the horizontal component 211 is a horizontal block. The pressure frame 210, the upper pressure plate 220, several guide columns 230 and the lower pressure plate 240 are first installed as a whole, and then placed into the bearing frame. The lower pressure plate 240 is located on two horizontal blocks. The horizontal blocks are used to ensure that the overall installed components are horizontal. If it is found that they are not in a horizontal state, horizontal blocks of different thicknesses can be replaced for adjustment. If the installed components are not in a horizontal state, it will affect the pressing state and the yield of the product. The horizontal component 211 can be easily disassembled to adjust the level of the installed components, and the components placed in the bearing frame can be quickly adjusted to be horizontal.

[0114] In one embodiment, the mold assembly 400 is movably mounted on a plurality of the support columns;

[0115] The mold assembly 400 is provided with a molding cavity 410.

[0116] In this embodiment of the invention, the mold assembly 400 is movably connected to several support columns. Driven by the demolding assembly 600, it can move on the support columns and can be moved to a designated position as needed, thereby facilitating the pressing of powder. The molding cavity 410 is used to shape the pressed powder.

[0117] Furthermore, when the demolding component 600 moves the mold component 400, it can be used for subsequent demolding. After the demolding component 600 moves, the molded product will be slowly demolded. This is explained here.

[0118] In one embodiment, the upper pressing assembly 310 includes a driving member 311 and an upper pressing member 312;

[0119] The drive component 311 is mounted on the pressure-bearing assembly 200;

[0120] The upper pressure member 312 is installed at the output end of the driving member 311;

[0121] The upper pressure member 312 is provided with an opening that matches the size of the mandrel.

[0122] In this embodiment of the invention, the driving component 311 drives the upper pressing component 312 to press down. At the same time, the upper pressing component 312 drives the linkage mold 500 to press down, and the linkage mold 500 compacts the powder. (It should be noted that the linkage component is installed on the upper pressing component 312. When the upper pressing component 312 rises, the pressing end of the linkage component can still be kept in the mold component 400, thereby preventing the powder from expanding and causing product damage.) The opening is used to facilitate the movement of the mandrel on the upper pressing component 312.

[0123] In one embodiment, the lower pressing assembly 320 includes a moving assembly 321 and a fixed mold 322;

[0124] The movable component 321 is fixedly mounted on the lower pressure plate 240;

[0125] The fixed mold 322 is fixedly mounted on the output end of the movable component 321;

[0126] The fixed mold 322 is provided with a pressing chamber 323, and the mandrel part is located in the pressing chamber 323. The central axis of the pressing chamber 323 coincides with the central axis of the molding cavity 410.

[0127] In this embodiment of the invention, the moving component 321 is used to drive the fixed mold 322 to move, so as to facilitate the adjustment of the position of the fixed mold 322 according to the size of the mold forming (the fixed mold 322 is adjusted in the forming cavity 410 to press the powder in conjunction with the linkage mold 500). The fixed mold 322 is provided with a through hole, which is connected to the pressing chamber 323. The through hole is to facilitate the movement of the mandrel in the fixed mold 322 (it should be noted that the mandrel is movably connected in the fixed mold 322. During pressing, the mandrel part is located in the pressing chamber 323, which facilitates the powder to be pressed into the corresponding shape). The pressing end of the linkage mold 500 is provided with a through hole that matches the size of the mandrel, so that it will not be affected by the mandrel when pressing down.

[0128] In one embodiment, the linkage mold 500 includes a cylinder 510, a movable plate 520, and an upper mold 530;

[0129] The cylinders 510 are symmetrically arranged on the upper pressure member 312;

[0130] The movable plate 520 is movably connected to several of the support columns, and one side of the movable plate 520 is fixedly mounted on the output end of two cylinders 510.

[0131] The upper mold 530 is fixedly disposed on the side of the movable plate 520 away from the cylinder 510.

[0132] In this embodiment of the invention, when the cylinder 510 is not activated, the upper pressing component 312 drives the movable plate 520 and the upper mold 530 to move and press down. During the upward movement of the upper pressing component 312, the cylinder 510 is activated, and the cylinder 510 drives the movable plate 520 and the upper mold 530 to descend, so that the upper mold 530 remains in the molding cavity 410. During the pressing process, the upper mold 530 is kept in close contact with the mold assembly 400 by the cylinder 510. Because the mold rises too quickly during the pressing process, the powder is only briefly subjected to force after pressing. The rapid rise of the mold will cause the powder to expand (the expansion is due to the lack of pressure resistance for a long time). The pressing time of the powder can be controlled by setting the pressing time of the cylinder 510 and the rising time of the upper pressing component 310. When the upper pressing component 310 rises to the limit point of the cylinder 510, the linkage mold 500 is driven to rise together. After the linkage mold 500 rises, the product is demolded.

[0133] In one embodiment, the demolding assembly 600 includes a lead screw lifting mechanism 610;

[0134] The lead screw lifting mechanism 610 is mounted on the mounting housing 100;

[0135] The lifting end of the lead screw lifting mechanism 610 is fixed to the mold assembly 400.

[0136] In this embodiment of the invention, the mold assembly 400 is raised and lowered by a lead screw lifting mechanism, so that the mold assembly 400 can be moved to a designated position as needed.

[0137] In one embodiment, the mandrel body 720 is partially located in the pressing chamber 323;

[0138] During pressing, the pressing chamber 323 and the upper pressing member 312 are located inside the forming cavity 410.

[0139] In this embodiment of the invention, the longitudinal diameter of the mandrel body 720 is consistent with the diameter of the through hole of the fixed mold 322. The mandrel body 720 passes through the through hole of the fixed mold 322 and extends to the pressing chamber 323. The above does not mean that the mandrel is always located in the pressing chamber 323, but only one state, because the mandrel body 720 can be adjusted by the lifting component 710. This is explained here.

[0140] One embodiment of the present invention provides a method of using a pressing structure, comprising:

[0141] A pressing structure as described in any one of the above embodiments, and

[0142] Steps for using a compression structure:

[0143] The mold assembly 400 is moved to the pressing position by the demolding assembly 600. After moving to the pressing position, powder is filled. After powder filling, the upper pressing assembly 310 is activated and presses down. The lower pressing assembly 320 is fixed on the lower pressure plate 240. During the pressing process, the mandrel stabilizes the entire equipment. During the pressing process, the linkage mold 500 keeps the pressing mold tightly attached to the mold assembly 400. After the upper pressing assembly 310 rises for a period of time, the linkage mold 500 is retracted. At this time, the product is demolded. During the demolding process, the demolding assembly 600 is activated. The demolding assembly 600 drives the mold assembly 400 to move, thereby demolding the product. At the same time, the lifting assembly 710 is activated to drive the mandrel to move. The mandrel will be ejected along with the product.

[0144] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the paper parts and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A pressing structure for pressing powdered metal, characterized in that, include: Mounting housing (100); A pressure-bearing assembly (200) is used to disperse the tensile force generated during compression. The pressure-bearing assembly (200) includes a pressure-bearing frame (210), an upper pressure plate (220), a plurality of guide columns (230), a lower pressure plate (240), and a plurality of transverse support columns (250). The pressure-bearing frame (210) is disposed on the mounting housing (100). One end of each of the guide columns (230) is fixedly disposed on the side of the upper pressure plate (220) away from the pressure-bearing frame (210). The lower pressure plate (240) is fixedly disposed on the side of the upper pressure plate (220) away from the pressure-bearing frame (210). On the pressure frame (210), the guide post (230) is fixedly mounted on the lower pressure plate (240) at one end away from the upper pressure plate (220), and the lower pressure plate (240) is located below the lower pressing assembly (320); a plurality of transverse support posts (250) are all mounted on the pressure frame (210); horizontal assemblies (211) are symmetrically arranged on the pressure frame (210), and the horizontal assemblies (211) are symmetrically and detachably mounted on the pressure frame (210) by bolts; the lower pressure plate (240) is mounted on the horizontal assemblies; Mandrel assembly (700) for synchronous movement during product demolding; mandrel assembly (700) includes lifting assembly (710) and mandrel body (720), the lifting assembly (710) is mounted on the mounting housing (100), and the mandrel body (720) is mounted on the output end of the lifting assembly (710); A pressing assembly (300) includes an upper pressing assembly (310) and a lower pressing assembly (320); the upper pressing assembly (310) is mounted on the pressure-bearing assembly (200), and the lower pressing assembly (320) is mounted on the mounting housing (100); the upper pressing assembly (310) includes a driving member (311) and an upper pressing member (312); the driving member (311) is mounted on the pressure-bearing assembly (200); the upper pressing member (312) is mounted on the output end of the driving member (311); the upper pressing member (312) is provided with an opening that matches the size of the mandrel body (720); A mold assembly (400) is mounted on the pressing assembly (300) and is used to shape the powder to be pressed. A linkage mold (500) includes a cylinder (510), a movable plate (520), and an upper mold (530); the cylinders (510) are symmetrically arranged on the upper pressure member (312); the movable plate (520) is movably connected to a plurality of guide columns (230), and one side of the movable plate (520) is fixedly arranged on the output end of two cylinders (510); the upper mold (530) is fixedly arranged on the side of the movable plate (520) away from the cylinders (510); A demolding assembly (600) is mounted on the mounting housing (100) and is used to move the mold assembly (400) to demold the product.

2. The pressing structure as described in claim 1, characterized in that, The mold assembly (400) is movably mounted on a plurality of the guide posts (230); The mold assembly (400) is provided with a molding cavity (410).

3. The pressing structure as described in claim 2, characterized in that, The lower pressing assembly (320) includes a moving assembly (321) and a fixed mold (322); The movable component (321) is fixedly mounted on the lower pressure plate (240); The fixed mold (322) is fixedly mounted on the output end of the movable component (321); The fixed mold (322) is provided with a pressing chamber (323), and the mandrel assembly (700) is partially located in the pressing chamber (323). The central axis of the pressing chamber (323) coincides with the central axis of the molding cavity (410).

4. The pressing structure as described in claim 1, characterized in that, The demolding assembly (600) includes a screw lifting mechanism (610). The lead screw lifting mechanism (610) is mounted on the mounting housing (100); The lifting end of the screw lifting mechanism (610) is fixed to the mold assembly (400).

5. The pressing structure as described in claim 3, characterized in that, The core rod body (720) is located in the pressing chamber (323).

6. The pressing structure as described in claim 3, characterized in that, During pressing, the pressing chamber (323) and the upper pressing member (312) are located inside the forming cavity (410).

7. A method of using the pressing structure as described in any one of claims 1-6, characterized in that, The steps include: The mold assembly (400) is moved to the pressing position by the demolding assembly (600). After moving to the pressing position, powder is filled. After filling the powder, the upper pressing assembly (310) is started. The upper pressing assembly (310) presses down. The lower pressing assembly (320) is fixed on the lower pressure plate (240). During the pressing process, the mandrel stabilizes the entire equipment. During the pressing process, the linkage mold (500) keeps the pressing mold tightly attached to the mold assembly (400). After the upper pressing assembly (310) rises for a period of time, the linkage mold (500) is retracted. At this time, the product is demolded. During the demolding process, the demolding assembly (600) is started. The demolding assembly (600) drives the mold assembly (400) to move, thereby demolding the product. During this process, the lifting assembly (710) is started at the same time to drive the mandrel to move. The mandrel will come out with the product.

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