A powder metallurgy product forming machine

Abstract

The utility model is applicable to the technical field of powder metallurgy forming machines, and provides a powder metallurgy product forming machine, comprising: a base; a lower die seat fixed at a central position on the top of the base by bolts; an extrusion die cavity opened at a central position on the top of the lower die seat; a support column welded to the top of the base near the outer side of the lower die seat; a top plate welded to the top of the support column; two first hydraulic cylinders symmetrically fixed to the top of the top plate by bolts; an upper die seat fixed to the output end of the first hydraulic cylinder; a material guide platform that can be raised and lowered at the bottom of the mold core, and a gap between the mold core and the material guide platform are utilized to realize feeding and control the feeding speed, so that metallurgical powder can be directly guided and fed to the inside of the extrusion die cavity, so that the feeding operation and the extrusion molding operation are combined, and the two operations are closely connected, thereby greatly improving the molding efficiency of powder metallurgy products, and no manual feeding is required, saving manpower.

Description

Technical Field

[0001] The utility model belongs to the technical field of powder metallurgy forming machines, in particular to a powder metallurgy product forming machine. Background Art

[0002] Powder metallurgy is a process technology that produces metal powder or uses metal powder as raw material, and then forms and sinters it to manufacture metal materials, composite materials and various types of products. Powder metallurgy forming machine is one of the basic processes in powder metallurgy production. Its purpose is to make loose powder into semi-finished products or finished products with predetermined geometric shape, size, density and strength.

[0003] Existing powder metallurgy product molding machines require workers to use a tray to hold powder materials, then move the tray to the top of the mold, and finally pour the powder materials on the tray into the mold. This is inconvenient for workers to add powder materials to the mold, and manual loading operations are cumbersome and inefficient.

[0004] Therefore, a powder metallurgy product forming machine is proposed. Utility Model Content

[0005] The utility model provides a powder metallurgy product forming machine, aiming to solve the above problems.

[0006] The utility model is implemented as follows: a powder metallurgy product forming machine comprises: a base; a lower die seat fixed at the central position of the top of the base by bolts; an extrusion die cavity opened at the central position of the top of the lower die seat; a support column welded to the top of the base near the outer position of the lower die seat; a top plate welded to the top of the support column; two first hydraulic cylinders symmetrically fixed to the top of the top plate by bolts; an upper die seat fixed to the output end of the first hydraulic cylinder; a mold core integrally formed at the central position of the bottom of the upper die seat; a powder storage cavity opened at the central position of the bottom of the mold core; a concave hole opened on the inner side wall of the powder storage cavity; a second hydraulic cylinder fixed to the top of the concave hole by bolts; a material guide table fixed to the output end of the second hydraulic cylinder; a feed box fixed to the central position of the top of the top plate by bolts; and a corrugated hose fixed between the feed box and the mold core by an adhesive.

[0007] Preferably, the extrusion die cavity and the die core match each other, and the lower die base and the upper die base are precisely butted.

[0008] Preferably, an inner wall on one side of the bottom of the powder storage chamber is provided with an inclined surface, and the inclined surface on the top of the material guiding platform matches the inclined surface.

[0009] Preferably, there are four concave holes in total, and the four concave holes are symmetrically opened on the inner wall of the powder storage cavity.

[0010] Preferably, the corrugated hose passes through the upper mold base, and the loading box and the mold core are both connected to the corrugated hose.

[0011] Preferably, the cross section of the material guiding platform is an isosceles triangle structure.

[0012] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0013] By using the liftable material guide platform at the bottom of the mold core and the gap between the mold core and the material guide platform to realize material loading and control the feeding speed, the metallurgical powder can be directly guided and fed into the interior of the extrusion mold cavity, thereby combining the feeding operation with the extrusion molding operation. The two operations are closely connected, thereby greatly improving the molding efficiency of powder metallurgy products, and no manual loading is required, saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the mold core structure of the utility model;

[0016] Figure 3 It is an explosion schematic diagram of the utility model;

[0017] Figure 4 It is a cross-sectional view of the mold core of the utility model.

[0018] In the figure: 1. base; 2. lower die base; 3. extrusion cavity; 4. support column; 5. top plate; 6. first hydraulic cylinder; 7. upper die base; 8. core; 9. powder storage cavity; 10. concave hole; 11. second hydraulic cylinder; 12. material guide platform; 13. feeding box; 14. corrugated hose. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0020] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] The present utility model provides a powder metallurgy product forming machine, such as Figure 1-4 As shown, it includes a base 1, a lower die base 2 is fixedly connected to the central position of the top of the base 1 by bolts, an extrusion die cavity 3 is opened at the central position of the top of the lower die base 2, a support column 4 is fixedly connected to the top of the lower die base 2 near the outer position of the lower die base 2 by bolts, a top plate 5 is fixedly connected to the top of the support column 4 by bolts, two first hydraulic cylinders 6 are symmetrically fixedly connected to the top of the top plate 5 by bolts, the two first hydraulic cylinders 6 are fixedly connected to the upper die base 7 through the output ends on one side thereof, the lower die base 2 and the upper die base 7 are precisely connected, and a mold core 8 is integrally formed at the central position of the bottom of the upper die base 7. The extrusion die cavity 3 and the die core 8 match each other. A powder storage cavity 9 is opened at the bottom center of the die core 8. A recessed hole 10 is opened on the inner wall of the powder storage cavity 9. There are four recessed holes 10 in total, and the four recessed holes 10 are symmetrically opened on the inner wall of the powder storage cavity 9. The inner top of the recessed hole 10 is fixedly connected to the second hydraulic cylinder 11 by bolts. The second hydraulic cylinder 11 is fixedly connected to the material guide platform 12 through the output end of one side thereof. A loading box 13 is fixedly connected to the top center of the top plate 5 by bolts. A corrugated hose 14 is fixed between the loading box 13 and the die core 8 by adhesive.

[0022] It should be noted that, since the existing powder metallurgy product forming machines require workers to use a tray to hold the powder material, then move the tray to the top of the mold, and finally pour the powder material on the tray into the mold, it is inconvenient for workers to add the powder material to the mold, and the manual loading operation is cumbersome and inefficient. This embodiment uses the liftable guide platform 12 at the bottom of the mold core 8 to realize loading and control the loading speed by utilizing the gap between the mold core 8 and the guide platform 12. The metallurgical powder can be directly guided and loaded into the interior of the extrusion mold cavity 3, thereby realizing the combination of loading operation and extrusion molding operation. The two operations are closely connected, thereby greatly improving the molding efficiency of powder metallurgy products, and no manual loading is required, saving manpower.

[0023] Specifically, in the present embodiment, the present scheme mainly comprises a loading box 13 and a mold core 8. When in use, the metallurgical powder is poured into the loading box 13. Under the guidance of the corrugated hose 14, the metallurgical powder enters the powder storage cavity 9. When the powder metallurgy product molding operation is performed, the first hydraulic cylinder 6 drives the upper mold base 7 to move downward through the output end on one side thereof, and the mold core 8 at the bottom of the upper mold base 7 moves downward synchronously. A part of the mold core 8 is inserted into the inner side of the extrusion cavity 3 of the lower mold base 2. When the metallurgical powder is loaded, the second hydraulic cylinder 11 drives the guide table 12 to move downward through the output end on one side thereof, and a gap is generated between the guide table 12 and the mold core 8. The metallurgical powder in the powder storage cavity 9 flows into the extrusion cavity 3 under the guidance of the guide table 12. , metallurgical powder is gradually accumulated at the inner bottom of the extrusion cavity 3. When the filling amount of the metallurgical powder reaches the required requirement, the second hydraulic cylinder 11 drives the guide table 12 to move upward and reset through the output end on one side thereof. The guide table 12 and the bottom of the core 8 are in the same plane. At this time, the first hydraulic cylinder 6 drives the upper die seat 7 to continue to move downward through the output end on one side thereof, and the core 8 at the bottom of the upper die seat 7 moves downward synchronously. The core 8 is inserted into the powder storage cavity 9. The metallurgical powder in the powder storage cavity 9 is fully extruded and formed to realize stamping forming. After the metallurgical powder product is formed, the first hydraulic cylinder 6 drives the upper die seat 7 to move upward through the output end on one side thereof, and the metallurgical powder product in the extrusion cavity 3 is exposed, and the metallurgical powder product is taken out.

[0024] In a further preferred embodiment of the present invention, Figure 1-4 As shown, an inner wall on one side of the bottom of the powder storage chamber 9 is provided with an inclined surface, and the inclined surface on the top of the material guide platform 12 matches the inclined surface, and the cross section of the material guide platform 12 is an isosceles triangle structure.

[0025] In this embodiment, the material guide platform 12 with an isosceles triangle structure can be used to guide the metallurgical powder inside the powder storage cavity 9 to both sides when it flows downward. When there is a gap between the material guide platform 12 and the mold core 8, the metallurgical powder can be guided out of the powder storage cavity 9, so that the metallurgical powder can be loaded into the interior of the extrusion mold cavity 3.

[0026] In a further preferred embodiment of the present invention, Figure 1 , Figure 3 and Figure 4 As shown, the corrugated hose 14 passes through the upper mold base 7 , and the upper material box 13 and the mold core 8 are both connected to the corrugated hose 14 .

[0027] In this embodiment, the metallurgical powder in the loading box 13 can enter the mold core 8 through the corrugated hose 14 .

[0028] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0029] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0030] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0031] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A powder metallurgy product forming machine, characterized in that: include: Base (1); A lower die base (2) fixed to the center of the top of the base (1) by bolts; An extrusion die cavity (3) is provided at the center of the top of the lower die base (2); A support column (4) welded to the top of the base (1) at a position close to the outer side of the lower die base (2); A top plate (5) welded to the top of the support column (4); Two first hydraulic cylinders (6) symmetrically fixed to the top of the top plate (5) by bolts; An upper die base (7) fixed to the output end of the first hydraulic cylinder (6); A mold core (8) integrally formed at the center of the bottom of the upper mold base (7); A powder storage cavity (9) is provided at the center of the bottom of the mold core (8); A recessed hole (10) formed on the inner wall of the powder storage chamber (9); A second hydraulic cylinder (11) fixed to the top of the inner part of the recessed hole (10) by means of bolts; A material guide platform (12) fixed to the output end of the second hydraulic cylinder (11); A loading box (13) fixed at the center of the top of the top plate (5) by bolts; A corrugated hose (14) is fixed between the loading box (13) and the mold core (8) by adhesive.

2. A powder metallurgy product forming machine as claimed in claim 1, characterized in that: The extrusion die cavity (3) and the die core (8) are matched and fitted, and the lower die base (2) and the upper die base (7) are precisely butted.

3. A powder metallurgy product forming machine as claimed in claim 1, characterized in that: An inner wall on one side of the bottom of the powder storage chamber (9) is provided with an inclined surface, and the inclined surface on the top of the material guide platform (12) matches the inclined surface.

4. A powder metallurgy product forming machine as claimed in claim 1, characterized in that: A total of four concave holes (10) are provided, and the four concave holes (10) are symmetrically arranged on the inner side wall of the powder storage cavity (9).

5. A powder metallurgy product forming machine as claimed in claim 1, characterized in that: The corrugated hose (14) passes through the upper die seat (7), and the upper material box (13) and the die core (8) are both connected to the corrugated hose (14).

6. A powder metallurgy product forming machine as claimed in claim 1, characterized in that: The cross section of the material guiding platform (12) is an isosceles triangle structure.

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