Powder metallurgy forming powder feeding device

Abstract

The application relates to the powder metallurgy technical field and provides a powder metallurgy forming powder feeding device which is arranged on a table plate of a forming press and comprises two parallel guide rails, support plates slidingly arranged on the guide rails and powder feeding boxes which are liftingly arranged on the two support plates through adjusting pieces. Exhaust grooves which are in communication with the inside and outside of the boxes are arranged on the powder feeding boxes, and recovery holes are arranged at the two ends of the table plate in the length direction of the guide rails. The powder is controlled between the two guide rails, the recovery holes are arranged to recover the excessive powder, powder waste is avoided, and the cost is reduced. The adjusting pieces are arranged to adjust the distance between the powder feeding boxes and the table plate, the powder is prevented from leaking out of the powder feeding boxes in a large amount, the powder feeding boxes are prevented from rubbing against the table plate, the wear of the powder feeding boxes is effectively reduced, and the replacement period of the powder feeding boxes is prolonged. The exhaust grooves are arranged to avoid 'flying powder' and secondary filling of the powder in the powder feeding boxes, and the product quality is effectively ensured.

Description

Technical Field

[0001] This application belongs to the field of powder metallurgy technology, and more specifically, relates to a powder metallurgy forming and feeding device. Background Technology

[0002] Powder metallurgy molding is a process in which powder is loaded into a mold and pressed into the desired product shape under certain pressure. Using appropriate methods and equipment to feed the powder into the mold is key to producing high-quality powder metallurgy products, reducing powder waste, and lowering costs.

[0003] The existing powder feeding device slides directly on the press platen, scattering powder across the platen without effective recovery, resulting in low powder utilization. Furthermore, because the feeding device is in direct contact with the platen, it suffers severe wear due to powder friction, requiring periodic replacement. In addition, the existing feeding device cannot effectively expel air from the mold cavity when powder enters the mold, causing powder splattering and secondary filling problems, affecting product performance. Utility Model Content

[0004] To address one of the problems existing in the prior art, the purpose of this application is to provide a powder metallurgy forming powder feeding device that can effectively solve the problems of powder waste, wear of the powder feeding device, and poor exhaust, so as to ensure product quality and reduce production costs.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a powder metallurgy forming powder feeding device is provided, which is set on the platform of the forming press, including: two parallel guide rails, a support plate slidably set on each of the guide rails, and a powder feeding box that is lifted and lowered on the two support plates by an adjusting component. The powder feeding box is provided with an exhaust groove that communicates with the inside and outside of the box, and the platform is provided with a recovery hole at both ends of the guide rails along the length direction.

[0006] In one embodiment, the guide rail is a parallel U-shaped guide rail with the opening of the U-shaped guide rail facing outward, and the support plate is provided with a plurality of rollers, which are rolled within the opening of the U-shaped guide rail.

[0007] In one embodiment, the powder feeding box has a connecting plate on its top, the adjusting component is an adjusting screw, the support plate has a positioning hole on its top, the adjusting screw is threaded onto the connecting plate, and the adjusting screw is rotatably connected to the positioning hole.

[0008] In one embodiment, the connecting plate is provided with an anti-rotation component to restrict the rotation of the adjusting screw.

[0009] In one embodiment, the anti-rotation component includes a column fixed to a connecting plate, a horizontal plate slidably disposed on the column, and a shaped column fixed to the lower surface of the horizontal plate. The adjusting screw has a shaped hole on its nut, and the shaped column is inserted into the shaped hole.

[0010] In one embodiment, the connecting plate is provided with a first limiting hole, the support plate is provided with a second limiting hole, the first limiting hole and the second limiting hole are arranged coaxially, and limiting posts are inserted into the first limiting hole and the second limiting hole.

[0011] In one embodiment, the limiting post is a pin.

[0012] In one embodiment, the front panel of the powder feeding box is an inclined plate, and the exhaust groove connects the top and bottom surfaces of the front panel. The exhaust groove includes an inclined groove and a vertical groove. The vertical groove is located close to the platform, and the width of the vertical groove is greater than the width of the inclined groove.

[0013] In one embodiment, the top of the powder feeding box is also provided with an observation window and a powder inlet pipe.

[0014] In one embodiment, the platform is further provided with a linear drive component for driving the powder feeding box to reciprocate.

[0015] The advantages of the powder metallurgy forming powder feeding device provided in this application are as follows:

[0016] 1. By setting two parallel guide rails on the platform, the powder is controlled between the two guide rails. By setting a recovery hole, the excess powder is pushed to the recovery hole for recovery when the powder feeding box moves back and forth during operation, thus avoiding powder waste and reducing costs.

[0017] 2. By setting an adjustable component to adjust the distance between the powder delivery box and the platform, the powder is prevented from leaking out of the powder delivery box in large quantities and from rubbing against the platform, which effectively reduces the wear of the powder delivery box and extends the replacement cycle of the powder delivery box.

[0018] 3. When the powder falls into the mold cavity, the gas inside the mold can be discharged through the venting groove on the powder feeding box, avoiding "powder flying" and secondary filling in the powder feeding box, effectively ensuring product quality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the overall structure of the powder metallurgy forming powder feeding device provided in the embodiments of this application;

[0021] Figure 2 This is a cross-sectional structural schematic diagram of the powder metallurgy forming powder feeding device provided in the embodiments of this application;

[0022] Figure 3 This is a schematic diagram of the powder metallurgy forming powder feeding device provided in the embodiments of this application, omitting the powder feeding box;

[0023] Figure 4 This is a bottom view of the powder feeding box in the powder metallurgy forming powder feeding device provided in the embodiments of this application;

[0024] Figure 5 This is a cross-sectional view of the anti-rotation component in the powder metallurgy forming powder feeding device provided in the embodiments of this application.

[0025] The following are the labeling elements in the figure:

[0026] 1. Platform; 11. Recycling hole; 2. Guide rail; 3. Support plate; 31. Roller; 4. Adjusting component; 5. Powder feeding box; 51. Exhaust trough; 52. Connecting plate; 53. Observation window; 54. Powder inlet pipe; 6. Anti-rotation component; 61. Column; 62. Horizontal plate; 63. Irregular column; 7. Limiting column. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0029] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 limitations on this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0031] like Figures 1-5 As shown, a powder metallurgy forming powder feeding device provided in this application embodiment will now be described. This powder metallurgy forming powder feeding device is mounted on the platform 1 of a forming press. The device includes: two parallel guide rails 2, support plates 3 slidably mounted on each guide rail 2, and a powder feeding box 5 that is lifted and lowered on the two support plates 3 via an adjusting member 4. The distance between the bottom surface of the powder feeding box 5 and the platform 1 can be adjusted via the adjusting member 4. The powder feeding box 5 is provided with an exhaust groove 51 communicating with the inside and outside of the box. The exhaust groove 51 is specifically located inside the front side plate of the powder feeding box 5 and does not directly contact the powder inside the box. The platform 1 has recovery holes 11 at both ends along the length of the guide rails 2. The recovery holes 11 are used to recover excess powder. The recovery holes 11 can be multiple rows of circular holes or elongated holes. A recovery box is located below the platform 1 to receive the recovered powder.

[0032] In this embodiment, the two parallel guide rails 2 serve two purposes: firstly, to slide the support plate 3, and secondly, to confine the powder between the two guide rails 2, preventing it from scattering across the entire platform 1. The guide rails 2 are parallel U-shaped rails with their openings facing outwards, meaning the openings of the two guide rails 2 face opposite directions, preventing powder from entering the guide rails 2 and affecting the movement of the rollers 31. The support plate 3 is located outside the guide rails 2, and its inner side is equipped with several rollers 31, preferably two or more. The rollers 31 roll within the openings of the U-shaped guide rails, enabling the support plate 3 to slide relative to the guide rails 2.

[0033] In this embodiment, the top of the powder feeding box 5 is provided with a connecting plate 52, which extends above the top of the support plate 3. Two connecting plates 52 are provided, each corresponding to one of the support plates 3. The adjusting component 4 is an adjusting screw. The top of the support plate 3 is provided with a positioning hole. The adjusting screw is threaded onto the connecting plate 52 and is rotatably connected to the positioning hole. That is, the adjusting screw is threaded onto the connecting plate 52 and then rotated into the positioning hole. When the adjusting screw rotates, its depth position in the positioning hole remains unchanged. Because it is threaded onto the connecting plate 52, the connecting plate 52 can be raised or lowered. The powder feeding box 5 is raised or lowered by rotating the adjusting screw, thereby adjusting the distance between the powder feeding box 5 and the platform 1. In this embodiment, two adjusting screws are spaced apart on the same connecting plate 52.

[0034] like Figure 5 As shown, to ensure the stability of the distance between the powder feeding box 5 and the platform 1, an anti-rotation component 6 is provided on the connecting plate 52 to limit the rotation of the adjusting screw. Once the distance is determined, the anti-rotation component 6 restricts the rotation of the adjusting screw, effectively preventing changes in the distance. Each adjusting screw is equipped with one anti-rotation component 6. Specifically, the anti-rotation component 6 includes a column 61 fixed on the connecting plate 52, a horizontal plate 62 slidably mounted on the column 61, and a shaped column 63 fixed to the lower surface of the horizontal plate 62. The adjusting screw nut has a shaped hole, and the shaped column 63 is inserted into the shaped hole. The shaped hole is preferably an internal hexagonal hole; correspondingly, the shaped column 63 is a hexagonal column. This effectively prevents the adjusting screw from rotating, and also ensures that when the shaped column 63 is aligned with the shaped hole, the fine-tuning rotation angle is relatively small. During adjustment, first slide the horizontal plate 62 upwards on the column 61 to separate the irregularly shaped column 63 from the irregularly shaped hole. Then, rotate the adjusting screw until the position is adjusted correctly. Afterward, insert the irregularly shaped column 63 into the irregularly shaped hole, effectively preventing the adjusting screw from rotating. During specific adjustments, when the adjusting screw is fully rotated, fine adjustments can be made to align and insert the irregularly shaped column 63 into the irregularly shaped hole. This fine adjustment will not significantly affect the spacing. Of course, if higher precision is required, the irregularly shaped hole and column 63 can be designed as larger polygonal structures, such as octagons or dodecagons.

[0035] To ensure that the powder feeding box 5 only moves in a linear motion and to effectively protect the adjusting screw, the connecting plate 52 has a first limiting hole, and the support plate 3 has a second limiting hole. The first and second limiting holes are coaxially aligned, and limiting posts 7 are inserted into both holes. The limiting posts 7 guide the lifting and lowering of the powder feeding box 5, thereby preventing horizontal movement and avoiding the horizontal shearing force generated by vibration during the operation of the molding press from affecting the adjusting screw. Two or three limiting posts 7 can be provided on the same connecting plate 52 as needed. The limiting posts 7 can be fixed to the connecting plate 52 and then movably inserted into the second limiting hole; or, the limiting posts 7 can be fixed to the support plate 3 and then movably inserted into the first limiting hole. Specifically, the limiting posts 7 are pins, preferably cylindrical pins.

[0036] In this embodiment, as Figure 2 As shown, the front panel of the powder feeding box 5 is an inclined plate. Specifically, most of the front panel of the powder feeding box 5 is an inclined plate, and the bottom part is a vertical plate. The venting groove 51 is set inside the front panel. The venting groove 51 connects the top surface and the bottom surface of the front panel. The venting groove 51 includes an inclined groove and a vertical groove. The vertical groove is set close to the platform 1. The width of the vertical groove is greater than the width of the inclined groove. This makes the vertical groove wider, which can effectively prevent powder from clogging the venting groove 51.

[0037] In this embodiment, the powder feeding box 5 has an observation window 53 on its top for observing the powder condition inside. The powder feeding box 5 also has two powder inlet pipes 54 on its top, which are used to introduce powder into the powder feeding box 5. The bottom of the powder feeding box 5 is open to facilitate the powder falling into the mold. The observation window 53 can be made of transparent glass or acrylic to prevent powder spillage.

[0038] In this embodiment, the platform 1 is also equipped with a linear drive component that drives the powder feeding box 5 to reciprocate. The linear drive component can be a hydraulic cylinder (not shown in the figure). The piston end of the hydraulic cylinder is rotatably connected to the powder feeding box 5 through a hinge seat, so that the lifting and lowering of the powder feeding box 5 does not affect the connection between the hydraulic cylinder and the powder feeding box 5. Of course, a pneumatic cylinder or an electric push rod can also be used instead of a hydraulic cylinder. In other embodiments, other linear drive components can also be used to drive the support plate 3, such as a drive structure composed of a motor and a gear rack, such as a conventional lead screw assembly.

[0039] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A powder metallurgy forming powder feeding device, disposed on the platform (1) of a forming press, characterized in that, It includes: two parallel guide rails (2), a support plate (3) slidably mounted on each of the guide rails (2), and a powder feeding box (5) mounted on the two support plates (3) by means of an adjusting member (4). The powder feeding box (5) is provided with an exhaust groove (51) communicating with the inside and outside of the box. The platform (1) is provided with a recycling hole (11) at both ends of the guide rails (2) along the length direction.

2. The powder metallurgy forming and feeding device as described in claim 1, characterized in that: The guide rail (2) is a parallel U-shaped guide rail with the opening facing outward. The support plate (3) is provided with several rollers (31), which are rolled inside the opening of the U-shaped guide rail (2).

3. The powder metallurgy forming and powder feeding device as described in claim 2, characterized in that: The powder feeding box (5) has a connecting plate (52) on its top. The adjusting component (4) is an adjusting screw. The support plate (3) has a positioning hole on its top. The adjusting screw is threaded on the connecting plate (52) and is rotatably connected to the positioning hole.

4. The powder metallurgy forming and feeding device as described in claim 3, characterized in that: The connecting plate (52) is provided with an anti-rotation component (6) to restrict the rotation of the adjusting screw.

5. The powder metallurgy forming and feeding device as described in claim 4, characterized in that: The anti-rotation component (6) includes a column (61) fixed on the connecting plate (52), a horizontal plate (62) slidably disposed on the column (61), and a shaped column (63) fixed on the lower surface of the horizontal plate (62). The adjusting screw has a shaped hole on its nut, and the shaped column (63) is inserted into the shaped hole.

6. The powder metallurgy forming and feeding device as described in claim 5, characterized in that: The connecting plate (52) is provided with a first limiting hole, and the support plate (3) is provided with a second limiting hole. The first limiting hole and the second limiting hole are arranged on the same axis, and a limiting post (7) is inserted into the first limiting hole and the second limiting hole.

7. The powder metallurgy forming and feeding device as described in claim 6, characterized in that: The limiting post (7) is a pin.

8. The powder metallurgy forming and feeding device according to any one of claims 1-7, characterized in that: The front plate of the powder feeding box (5) is an inclined plate. The exhaust groove (51) connects the top and bottom surfaces of the front plate. The exhaust groove (51) includes an inclined groove and a vertical groove. The vertical groove is located near the platform (1). The width of the vertical groove is greater than the width of the inclined groove.

9. The powder metallurgy forming and feeding device as described in claim 8, characterized in that: The powder feeding box (5) is also provided with an observation window (53) and a powder inlet pipe (54) on its top.

10. The powder metallurgy forming and powder feeding device as described in claim 9, characterized in that: The platform (1) is also provided with a linear drive component that drives the powder feeding box (5) to reciprocate.

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