Metal powder pressing machine for powder metallurgy

Abstract

The utility model discloses a metal powder pressing machine for powder metallurgy, and relates to the technical field of metallurgy. The pressing machine comprises a pressing machine body, and a pressing assembly is arranged in the pressing machine body. The pressing assembly comprises a material pressing column in sliding fit with the interior of the pressing machine body, first toothed plates in sliding fit with the interiors of the two opposite sides of the pressing machine body, a mold in sliding fit with the interior of the pressing machine body and second toothed plates in sliding fit with the interiors of the two opposite sides of the pressing machine body. The material pressing column moves upwards to drive the first toothed plates on the two sides to slide to drive the rotating column to rotate, then the rotating column rotates to drive the second toothed plates to slide to drive the die to move downwards, the top end of the auxiliary ejector rod abuts against an auxiliary rod in the die, and the auxiliary ejector rod ejects to drive the ejector plate to slide in the die. And therefore, the firmly adsorbed metal powder is cleaned, and the working efficiency is realized and improved.

Description

Technical Field

[0001] The utility model belongs to the field of metallurgy, and in particular relates to a metal powder pressing machine for powder metallurgy. Background Art

[0002] A powder forming method that uses external pressure in the die. The pressing process consists of powder loading, pressing and demolding. During the pressing process, gaps between particles and between particles and the die wall are created, thereby applying pressure to the powder metallurgy.

[0003] A Chinese patent with the announcement number CN216607232U discloses a metal powder pressing machine for powder metallurgy, comprising a blower, one end of which is fixedly connected to one end of a blast pipe, the other end of which is fixedly connected to a feed port, and the bottom end of which is fixedly connected to one end of a feed barrel. The utility model is provided with a first pulley, the first pulley is slidably connected to a first movable rail, one end of the first movable rail is fixedly connected to a portion of a pressing column near the bottom end, the other side of the bottom end of the pressing column is fixedly connected to the other end of a second movable rail, and the second movable rail is movably connected to a second pulley. When a pressing cylinder is turned on, the pressing column is driven to move downward to press the metal powder in the mold into shape. When the pressing column descends, the second clamping plate is driven to move toward the first clamping plate to cover the top end of the mold, which is beneficial to ensure that the metal powder in the mold will not be blown away when being pressed, thereby avoiding waste of resources.

[0004] When the above-mentioned existing technology is actually used in the field of metallurgy, the pressing column is lowered into the mold to press the metal powder inside, and then the mold is rotated by the second support column to drive it into an inclined state, and then the metal powder adsorbed on the inner wall of the mold is cleaned by a blower. However, the blower cleans the metal powder that is not firmly adsorbed on the inner wall of the mold, while the metal powder that is firmly adsorbed needs to be manually cleaned by personnel, which is time-consuming and labor-intensive, and reduces work efficiency.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a metal powder pressing machine for powder metallurgy.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] A metal powder pressing machine for powder metallurgy comprises a pressing machine body, an auxiliary ejector rod is installed at the bottom of the inner wall of the pressing machine body, and a pressing assembly is arranged inside the pressing machine body;

[0009] The pressing assembly includes a pressing column that slides inside the pressing machine body, a first tooth plate that slides inside the opposite sides of the pressing machine body, a mold that slides inside the pressing machine body, a second tooth plate that slides inside the opposite sides of the pressing machine body, a rotating column that rotatably fits inside the opposite sides of the pressing machine body, a top plate that slides inside the mold, an auxiliary rod installed on one side of the top plate, and a limiting cylinder installed at the bottom of the mold. The first tooth plate cooperates with the pressing column, the second tooth plate cooperates with the mold, the first tooth plate and the second tooth plate cooperate with the rotating column, the pressing column cooperates with the mold, and the auxiliary push rod cooperates with the auxiliary rod.

[0010] Optionally, a pressing cylinder is installed on the pressing machine body, a pressing column is installed on the output end of the pressing cylinder, a first through groove is opened on one side of the pressing machine body, and the pressing column is slidably fitted in the first through groove.

[0011] Optionally, slide grooves are opened on opposite sides of the inner wall of the pressing machine body, the first tooth plate and the second tooth plate slide together in the slide grooves, the first support plates are installed on opposite sides of the pressing column, and one side of the first tooth plate is installed on one side of the first support plate.

[0012] Optionally, the rotating column rotates in the slide groove, and a gear is installed on the rotating column. The gear is located between the first tooth plate and the second tooth plate and meshes with them. Second support plates are installed on opposite sides of the mold, and one side of the second tooth plate is installed on one side of the second support plate.

[0013] Optionally, a baffle is installed inside the limiting cylinder, a second through slot is opened on one side of the baffle, the auxiliary rod slides in the second through slot, a first spring is installed between the top plate and the baffle, and the first spring is sleeved on the auxiliary rod.

[0014] Optionally, a third through groove is provided on opposite sides of the pressing machine body, and the internal sliding of the third through groove is matched with a limiting column, a partition is installed on the limiting column, a second spring is installed between the partition and the top of the inner wall of the third through groove, and the second spring is sleeved on the limiting column, a third support plate is installed at one end of the limiting column, an annular auxiliary cover plate is installed between the two third support plates, and the annular auxiliary cover plate is matched with the mold.

[0015] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described below at the same time:

[0016] The upward movement of the pressing column drives the first tooth plates on both sides to move upward, and the sliding of the first tooth plates drives the rotating column to rotate, and the rotation of the rotating column drives the second tooth plates to slide, and the sliding of the second tooth plates drives the mold to move downward, so that the limiting cylinder on the bottom of the mold is sleeved on the auxiliary ejector rod, and the top end of the auxiliary ejector rod is abutted against the auxiliary rod inside the mold, so that the auxiliary ejector rod is lifted by the auxiliary ejector rod to drive the ejector plate to slide in the mold, thereby facilitating the cleaning of the firmly adsorbed metal powder, thereby achieving and improving work efficiency.

[0017] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described below are only some embodiments. A person skilled in the art can derive other drawings based on these drawings without inventive effort. In the drawings:

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0020] Figure 2 This is a schematic cross-sectional view of an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of a pressing assembly according to an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the mold according to an embodiment of the present utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the pressing machine body according to an embodiment of the present utility model;

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] Pressing machine body 1, pressing cylinder 2, auxiliary push rod 3, pressing column 5, mold 6, second tooth plate 7, slide 8, second support plate 9, first tooth plate 10, rotating column 11, gear 12, first support plate 13, limiting column 14, second spring 15, partition 16, third support plate 17, limiting cylinder 18, baffle 19, second through groove 20, push plate 21, auxiliary rod 22, first spring 23, third through groove 24, first through groove 25, annular auxiliary cover plate 26.

[0026] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0027] The present invention will now be described in further detail with reference to the accompanying drawings.

[0028] See also Figure 1-5 As shown, in this embodiment, a metal powder pressing machine for powder metallurgy is provided, comprising a pressing machine body 1, an auxiliary ejector pin 3 is installed at the bottom of the inner wall of the pressing machine body 1, and a pressing assembly is arranged inside the pressing machine body 1;

[0029] The pressing assembly includes a pressing column 5 that slides inside the pressing machine body 1, a first tooth plate 10 that slides inside the opposite sides of the pressing machine body 1, a mold 6 that slides inside the pressing machine body 1, a second tooth plate 7 that slides inside the opposite sides of the pressing machine body 1, a rotating column 11 that rotatably fits inside the opposite sides of the pressing machine body 1, a top plate 21 that slides inside the mold 6, an auxiliary rod 22 installed on one side of the top plate 21, and a limiting cylinder 18 installed at the bottom of the mold 6. The first tooth plate 10 cooperates with the pressing column 5, the second tooth plate 7 cooperates with the mold 6, the first tooth plate 10 and the second tooth plate 7 cooperate with the rotating column 11, the pressing column 5 cooperates with the mold 6, and the auxiliary push rod 3 cooperates with the auxiliary rod 22.

[0030] One aspect of the application of this embodiment is: when it is necessary to press and form metal powder, an appropriate amount of metal powder is poured into the interior of the mold 6 and retained on the surface of the top plate 21, and then the pressing column 5 slides downward in the pressing machine body 1, so that it drives the first tooth plates 10 on both sides to slide downward, and the first tooth plates 10 slide downward to drive the rotating column 11 to rotate, and then the rotating column 11 rotates to drive the second tooth plates 7 on both sides to slide upward, that is, the two second tooth plates 7 slide upward to drive the mold 6 to move toward the end of the pressing column 5, so that the pressing column 5 is located at the end of the mold 6. The metal powder inside is pressed and formed. When it is necessary to clean the impurities adsorbed on the inner wall of the mold 6, the above operations are reversed, so that the mold 6 slides downward under the action of the pressing column 5, so that the limiting cylinder 18 at the bottom of the mold 6 is sleeved on the auxiliary ejector rod 3, so that the top end of the auxiliary ejector rod 3 is matched with the end of the auxiliary rod 22 on one side of the top plate 21, so that the mold 6 can slide the top plate 21 upward along the inside of the mold 6 and scrape its inner wall under the action of the auxiliary ejector rod 3, so as to facilitate the cleaning of the firmly adsorbed metal powder, thereby achieving and improving work efficiency.

[0031] In this embodiment, a pressing cylinder 2 is mounted on the pressing machine body 1 , and a pressing column 5 is mounted on the output end of the pressing cylinder 2 . A first through slot 25 is provided on one side of the pressing machine body 1 , and the pressing column 5 is slidably fitted in the first through slot 25 .

[0032] By turning on the pressing cylinder 2, the output end of the pressing cylinder 2 drives the pressing column 5 to slide in the first through groove 25, thereby facilitating the control of the matching relationship between the pressing column 5 and the mold 6, and pressing and molding the metal powder inside, thereby saving manpower.

[0033] In this embodiment, slide grooves 8 are provided on opposite sides of the inner wall of the pressing machine body 1, and the first tooth plate 10 and the second tooth plate 7 are slidably fitted in the slide grooves 8. First support plates 13 are installed on opposite sides of the pressing column 5, and one side of the first tooth plate 10 is installed on one side of the first support plate 13. The rotating column 11 rotates and fits in the slide groove 8. A gear 12 is installed on the rotating column 11. The gear 12 is located between the first tooth plate 10 and the second tooth plate 7 and meshes with them. Second support plates 9 are installed on opposite sides of the mold 6, and one side of the second tooth plate 7 is installed on one side of the second support plate 9.

[0034] When the metal powder adsorbed on the inner wall of the mold 6 needs to be cleaned, the pressing column 5 moves upward, causing the first support plates 13 on both sides of the pressing column 5 to move upward, and the first toothed plate 10 on one side of the first support plate 13 slides upward, and then the first toothed plate 10 slides upward to drive the gear 12 to mesh and rotate, and then the gear 12 rotates to drive the second toothed plate 7 to slide downward, so that the second support plate 9 on the side of the second toothed plate 7 drives the mold 6 to slide downward, thereby causing the limiting cylinder 18 at the bottom of the mold 6 to slide downward, and the auxiliary ejector rod 3 is inserted into the limiting cylinder 18 on the bottom of the mold 6 and abuts against the end of the auxiliary rod 22, and then the mold 6 continues to slide downward so that the auxiliary ejector rod 3 inside the limiting cylinder 18 will drive the auxiliary rod 22 to slide upward, and the first spring 23 will contract, thereby driving the top plate 21 on the auxiliary rod 22 to clean the metal powder adsorbed on the inner wall of the mold 6.

[0035] In this embodiment, a baffle 19 is installed inside the limiting cylinder 18, and a second through groove 20 is opened on one side of the baffle 19. The auxiliary rod 22 slides in the second through groove 20. A first spring 23 is installed between the top plate 21 and the baffle 19, and the first spring 23 is sleeved on the auxiliary rod 22.

[0036] By moving the die 6 upward and moving the auxiliary rod 22 away from the top end of the auxiliary ejector rod 3 , the first spring 23 drives the ejector plate 21 to reset through the operating force, thereby achieving and improving the compacting efficiency of the metal powder.

[0037] In this embodiment, slide grooves 8 are provided on opposite sides of the inner wall of the pressing machine body 1, and the first tooth plate 10 and the second tooth plate 7 are slidably fitted in the slide grooves 8. First support plates 13 are installed on opposite sides of the pressing column 5, and one side of the first tooth plate 10 is installed on one side of the first support plate 13. The rotating column 11 rotates and fits in the slide groove 8. A gear 12 is installed on the rotating column 11. The gear 12 is located between the first tooth plate 10 and the second tooth plate 7 and meshes with them. Second support plates 9 are installed on opposite sides of the mold 6, and one side of the second tooth plate 7 is installed on one side of the second support plate 9.

[0038] When metal powder needs to be pressed and formed, an appropriate amount of metal powder is poured into the interior of the mold 6 and retained on the surface of the top plate 21. The pressing cylinder 2 is then turned on, so that the pressing cylinder 2 drives the pressing column 5 to slide downward, causing the first support plates 13 on both sides of the pressing column 5 to slide downward in the slide groove 8, and the first tooth plate 10 moves downward along with the first support plate 13 in the slide groove 8, and then the first tooth plate 10 slides downward to drive the gear 12 to engage and rotate, and then the gear 12 rotates to drive the second tooth plate 7 to engage and slide, so that the second support plate 9 on the second tooth plate 7 drives the mold 6 to slide toward the pressing column 5, so that the pressing column 5 is located inside the mold 6 and the metal powder inside it is pressed and formed.

[0039] The pressing machine body 1 of this embodiment is provided with a third through groove 24 on opposite sides, and the interior of the third through groove 24 is slidably matched with the limiting column 14, and a partition 16 is installed on the limiting column 14. A second spring 15 is installed between the partition 16 and the top of the inner wall of the third through groove 24, and the second spring 15 is sleeved on the limiting column 14. A third support plate 17 is installed at one end of the limiting column 14, and an annular auxiliary cover plate 26 is installed between the two third support plates 17, and the annular auxiliary cover plate 26 is matched with the mold 6.

[0040] When it is necessary to prevent omissions during pressing and molding, the pressing column 5 moves downward to drive the mold 6 to move upward, and the mold 6 moves upward to abut against the annular auxiliary cover plate 26, and the annular auxiliary cover plate 26 moves as the mold 6 moves upward, thereby preventing omissions during pressing of the metal powder. 26 will drive the third support plates 17 on both sides to move, and the limiting column 14 on the third support plate 17 drives the second spring 15 on the partition 16 to contract. When the pressing column 5 is away from the mold 6, the second spring 15 drives the limiting column 14 and the annular auxiliary cover plate 26 to reset through the operating force, thereby reducing the waste of resources.

[0041] The present invention is not limited to the above-described embodiments. Any structural changes made under the guidance of the present invention should be understood by anyone. Any technical solution that is the same or similar to the present invention falls within the scope of protection of the present invention. The technology, shape, and structure not described in detail in the present invention are all known technologies.

Claims

1. A metal powder compacting machine for powder metallurgy, characterized in that: include: A pressing machine body (1), an auxiliary ejector rod (3) is installed at the bottom of the inner wall of the pressing machine body (1), and a pressing assembly is arranged inside the pressing machine body (1); The pressing assembly comprises a pressing column (5) slidingly fitted inside the pressing machine body (1), a first tooth plate (10) slidingly fitted inside the opposite sides of the pressing machine body (1), a mold (6) slidingly fitted inside the pressing machine body (1), a second tooth plate (7) slidingly fitted inside the opposite sides of the pressing machine body (1), a rotating column (11) rotatably fitted inside the opposite sides of the pressing machine body (1), a top plate (21) slidingly fitted inside the mold (6), an auxiliary rod (22) installed on one side of the top plate (21), and a limiting cylinder (18) installed at the bottom of the mold (6); the first tooth plate (10) cooperates with the pressing column (5), the second tooth plate (7) cooperates with the mold (6), the first tooth plate (10) and the second tooth plate (7) cooperate with the rotating column (11), the pressing column (5) cooperates with the mold (6), and the auxiliary push rod (3) cooperates with the auxiliary rod (22).

2. The metal powder compacting machine for powder metallurgy according to claim 1, characterized in that: A pressing cylinder (2) is mounted on a pressing machine body (1), a pressing column (5) is mounted on the output end of the pressing cylinder (2), a first through slot (25) is opened on one side of the pressing machine body (1), and the pressing column (5) is slidably fitted in the first through slot (25).

3. The metal powder compacting machine for powder metallurgy according to claim 1, characterized in that: Slide grooves (8) are provided on opposite sides of the inner wall of the pressing machine body (1), and the first tooth plate (10) and the second tooth plate (7) are slidably fitted in the slide grooves (8). First support plates (13) are provided on opposite sides of the pressing column (5), and one side of the first tooth plate (10) is provided on one side of the first support plate (13).

4. The metal powder compacting machine for powder metallurgy according to claim 3, characterized in that: The rotating column (11) is rotatably engaged in the slide groove (8). A gear (12) is installed on the rotating column (11). The gear (12) is located between the first tooth plate (10) and the second tooth plate (7) and meshes with them. Second support plates (9) are installed on opposite sides of the mold (6), and one side of the second tooth plate (7) is installed on one side of the second support plate (9).

5. The metal powder compacting machine for powder metallurgy according to claim 1, characterized in that: A baffle (19) is installed inside the limiting cylinder (18), a second through slot (20) is opened on one side of the baffle (19), an auxiliary rod (22) is slidably fitted in the second through slot (20), a first spring (23) is installed between the top plate (21) and the baffle (19), and the first spring (23) is sleeved on the auxiliary rod (22).

6. The metal powder compacting machine for powder metallurgy according to claim 1, characterized in that: A third through slot (24) is provided on opposite sides of the pressing machine body (1), and the interior of the third through slot (24) is slidably fitted with a limiting column (14).

7. The metal powder compacting machine for powder metallurgy according to claim 6, characterized in that: A partition plate (16) is installed on the limiting column (14), a second spring (15) is installed between the partition plate (16) and the top of the inner wall of the third through groove (24), and the second spring (15) is sleeved on the limiting column (14).

8. The metal powder compacting machine for powder metallurgy according to claim 7, characterized in that: A third support plate (17) is installed at one end of the limiting column (14), an annular auxiliary cover plate (26) is installed between the two third support plates (17), and the annular auxiliary cover plate (26) is matched with the mold (6).

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