Powder adding device
By designing a downward pressing mechanism and a flexible sealing ring in the powder mixing device, the collision problem during vibration is solved, and the stability and service life of the powder mixing device are achieved.
Patent Information
- Application Number
- CN202421022241.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-13
AI Technical Summary
Existing powder adding devices are prone to collisions when vibrating, affecting powder adding stability and short service life.
A powder-adding device is designed, including a powder-adding box frame, a powder chamber, a vibration mechanism and a downward pressure mechanism. The powder chamber is pressed down through a down pressure mechanism to make its lower stop tightly against the notch edge of the powder box frame to reduce shaking. Flexible seals nest around the lower stop, buffering and sealing to prevent powder from spilling out and reduce collisions.
The stability of the powder adding device during vibration is realized, the collision with the powder adding box frame is reduced, the service life is extended, and the stable movement of the powder adding device is ensured.
Smart Images
Figure CN222470712U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of powder metallurgy technology, in particular to a powder adding device. Background Art
[0002] Powder metallurgy press is a commonly used powder molding equipment in industry, usually including a powder adding device, a powder weighing device, a powder feeding device and a molding device. During the working process of the press, the powder is added to the powder weighing device for weighing, the powder weighing device weighs a certain amount of powder and puts it into the powder adding device, and finally the powder feeding device pushes the powder adding device to the molding device, and the powder is put into the molding mold for pressing and molding.
[0003] The powder adding device usually includes a powder adding box frame and a powder bin arranged in the powder adding box frame, and a slider that matches the slide groove on the press is arranged at the lower part of the powder adding box frame. A notch is arranged at the bottom of the powder adding box frame, and the bottom of the powder bin matches in the notch so that the powder outlet at the bottom of the powder bin can be exposed below the powder adding box frame to add powder to the molding device. When adding powder, the powder adding device needs to generate vibration through a vibration mechanism to reduce the powder residue in the powder box of the powder adding device. Due to the difference between the powder box and the outside of the powder box. Due to the error in the notch of the powder adding box frame during processing, the powder bin will frequently collide with the powder adding box frame during vibration, thereby affecting the normal powder output. At the same time, there is also a gap between the slider of the powder adding box frame and the slide groove, which will cause the powder adding box frame to collide with the slide groove when the powder adding device vibrates, affecting the service life of the powder adding device. Summary of the invention
[0004] The utility model aims to provide a powder adding device, which has the advantages of being stable during vibration, not prone to collision and having a long service life.
[0005] The above technical objectives of the utility model are achieved through the following technical solutions:
[0006] The utility model provides a powder adding device, which comprises a powder adding box frame, a powder bin, a vibration mechanism and a pressing mechanism; a holding cavity for holding powder is arranged in the powder bin, a notch is arranged at the lower side of the powder adding box frame, the powder bin, the vibration mechanism and the pressing mechanism are all installed in the powder adding box frame, and the lower part of the powder bin is fitted in the lower notch of the powder adding box frame;
[0007] The vibration mechanism is connected to the powder bin and drives the powder bin to vibrate, and the pressing mechanism is connected to the powder bin and provides downward pressure to the powder bin; a lower stop is provided at the lower part of the peripheral side of the powder bin, and the lower stop is limited to be located above the notch of the powder adding box frame, and a flexible sealing ring is nested circumferentially in the lower stop, and the flexible sealing ring abuts against the edge of the lower stop and the notch of the powder adding box frame.
[0008] Furthermore, the pressing mechanism includes a connecting block and a fixed cylinder, the cylinder body of the fixed cylinder is fixed to the inner bottom wall of the powder box frame, the connecting block is fixed to the outer wall of the powder bin and is located above the fixed cylinder, and the piston rod of the fixed cylinder is connected to the connecting block.
[0009] Furthermore, two pressing mechanisms are provided, and the two pressing mechanisms are provided at the front and rear ends of the powder bin.
[0010] Furthermore, the vibration mechanism includes an electric vibrator, and the electric vibrator is arranged in the middle of one of the left and right sides of the powder bin.
[0011] Furthermore, an upper cover plate is arranged above the powder adding box frame, the upper cover plate covers the upper part of the powder adding box frame, an upper side opening is arranged on the upper cover plate, and the feed port of the powder bin is opposite to the upper side opening.
[0012] Furthermore, an upper stop is provided on the upper portion of the powder bin, and the upper opening fits with the upper stop.
[0013] Furthermore, a slider is provided at the bottom of the powder box frame, and the slider is used to slide with the slide rail of the press. The slider is provided with a mounting groove, and a shock absorbing assembly is installed in the mounting groove. The shock absorbing assembly is kept tightly between the mounting groove and the slide rail.
[0014] Furthermore, the shock absorbing assembly includes a spring plunger and an abutment head, the plunger head of the spring plunger abuts against the inner side of the abutment head, and part of the abutment head can extend out of the mounting groove and abut against the inner wall of the slide rail under the drive of the spring plunger.
[0015] Furthermore, the abutment joint is made of copper, and a polytetrafluoroethylene gasket is arranged on the outside of the abutment joint.
[0016] Furthermore, the slider is a dovetail block, the spring plunger is arranged perpendicular to the side of the slider, and the surface of the abutment head is parallel to the side of the slider.
[0017] In summary, the utility model has the following beneficial effects:
[0018] In the powder feeding device of the utility model, the lower part of the powder bin passes through the lower notch of the powder box frame, and the powder bin is pressed down by the pressing mechanism so that the lower stop of the powder bin is tightly abutted against the edge of the lower notch of the powder box frame, so that the powder bin is not fixedly installed in the powder box frame and is not prone to shaking; a flexible sealing ring is sleeved on the side of the lower stop, and when the pressing mechanism is pressed down, the flexible sealing ring abuts against the edge of the lower notch of the powder box and the lower stop, playing a buffering and sealing role, so that the powder bin is not prone to collision with the powder box frame when vibrating, and at the same time, the powder spilled in the powder bin is not prone to directly flow out of the lower notch of the powder box frame onto the slide rail, thereby ensuring the stability of the powder adding device during movement. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the exploded structure of a powder adding device according to an embodiment of the utility model.
[0020] Figure 2 It is a three-dimensional structural schematic diagram of a powder adding box frame and a powder bin according to an embodiment of the utility model.
[0021] Figure 3 It is a three-dimensional structural schematic diagram of a powder bin and a vibration mechanism according to an embodiment of the utility model.
[0022] Figure 4 It is a schematic diagram of the top view of the powder adding device of one embodiment of the utility model.
[0023] Figure 5 It is a structural schematic diagram of a shock absorbing assembly according to an embodiment of the utility model.
[0024] In the figure:
[0025] 1000, powder adding device; 100, powder adding box frame; 110, slider; 111, mounting groove; 120, shock absorbing assembly; 121, spring plunger; 122, abutment joint; 123, polytetrafluoroethylene gasket; 200, powder bin; 210, accommodating chamber; 220, feed inlet; 230, discharge outlet; 240, lower stopper; 250, upper stopper; 300, vibration mechanism; 400, pressing mechanism; 410, connecting block; 420, fixed cylinder; 500, flexible sealing ring; 600, upper cover plate; 610, upper side opening. DETAILED DESCRIPTION
[0026] The utility model is further described below in conjunction with the accompanying drawings.
[0027] The present embodiment discloses a powder adding device 1000, which is used for a powder press. After the powder weighing device of the powder press weighs the powder, the powder adding device 1000 loads the powder and moves on the slide rail of the powder press. After reaching the molding device of the powder press, the powder is added to the molding device for compression molding.
[0028] Reference Figures 1 to 5 The powder adding device 1000 includes a powder adding box frame 100, a powder bin 200, a vibration mechanism 300 and a pressing mechanism 400. The powder bin 200, the vibration mechanism 300 and the pressing mechanism 400 are all installed in the powder adding box frame 100.
[0029] The powder bin 200 is provided with a receiving chamber 210 for receiving powder. The receiving chamber 210 penetrates the upper part of the powder bin 200 to form a feed port 220, and the receiving chamber 210 penetrates the lower part of the powder bin 200 to form a discharge port 230. After the powder weighing device weighs the powder, the powder is injected into the receiving chamber 210 from the feed port 220. When the powder adding device 1000 reaches the upper part of the molding device, the discharge port 230 is opened so that the powder in the receiving chamber 210 enters the molding device.
[0030] A notch is provided at the lower side of the powder adding box frame 100 , and the lower part of the powder bin 200 fits in the notch of the powder adding box frame 100 , so that the discharge port 230 can be exposed from the notch at the lower side of the powder adding box frame 100 to the powder adding box frame 100 , thereby ensuring that the powder can flow out of the powder bin 200 .
[0031] The vibration mechanism 300 is connected to the powder bin 200 and is used to drive the powder bin 200 to vibrate, so that the powder in the powder bin 200 is not easy to remain on the inner wall of the powder bin 200 when it flows out. The pressing mechanism 400 is connected to the powder bin 200 and provides downward pressure for the powder bin 200. A lower stop 240 is provided at the lower part of the peripheral side of the powder bin 200, and the lower stop 240 is limited to the upper part of the lower notch of the powder adding box frame 100. When the pressing mechanism 400 presses down the powder bin 200, the lower stop 240 abuts against the edge of the lower notch of the powder adding box frame 100, so that the pressing mechanism 400 presses the powder bin 200 tightly into the powder adding box frame 100, so that the powder bin 200 is not easy to shake and collide with the powder adding box frame 100 when vibrating.
[0032] Among them, a flexible sealing ring 500 is nested circumferentially in the lower stop 240. When the lower part of the powder bin 200 passes through the lower notch and the pressing mechanism 400 presses down, the flexible sealing ring 500 abuts against the edge of the lower notch of the powder adding box and the lower stop 240, playing a buffering and sealing role, so that the powder bin 200 is not easy to collide with the powder adding box frame 100 when vibrating. At the same time, the powder spilled from the powder bin 200 is not easy to flow out directly from the lower notch of the powder adding box frame 100 onto the slide rail, thereby ensuring the stability of the powder adding device 1000 during movement.
[0033] In this embodiment, the pressing mechanism 400 includes a connecting block 410 and a fixed cylinder 420. The cylinder body of the fixed cylinder 420 is fixed to the inner bottom wall of the powder box frame 100, the connecting block 410 is fixed to the outer wall of the powder bin 200 and is located above the fixed cylinder 420, and the piston rod of the fixed cylinder 420 is connected to the connecting block 410. When the piston rod of the fixed cylinder 420 contracts, it drives the connecting block 410 to move downward, thereby pressing down the powder bin 200.
[0034] There are two pressing mechanisms 400, which are arranged at the front and rear ends of the powder bin 200. The front and rear direction here refers to the direction parallel to the movement of the powder adding mechanism on the slide rail. The two pressing mechanisms 400 press down the powder bin 200 at both ends of the powder bin 200, so that the powder bin 200 is balanced in force and not easy to tilt, thereby ensuring the stability of the powder adding device 1000 when working.
[0035] In this embodiment, the vibration mechanism 300 includes an electric vibrator, which generates vibration by rotating a vibration motor. The electric vibrator is arranged in the middle of one of the left and right sides of the powder bin 200, where the left and right directions refer to the horizontal direction perpendicular to the movement direction of the powder adding device 1000. Thus, the vibration of the vibration mechanism 300 can be transmitted to the inner wall of the powder bin 200 more evenly, so that powder is not easily left in every corner of the inner wall of the powder bin 200.
[0036] An upper cover plate 600 is provided above the powder adding box frame 100. The upper cover plate 600 is fixedly covered on the upper part of the powder adding box frame 100, and the structure formed by the upper cover plate 600 and the powder adding box frame 100 encloses the powder bin 200, the pressing mechanism 400 and the vibration mechanism 300, so that the overall structure of the powder adding device 1000 is more compact and beautiful, and the powder bin 200, the pressing mechanism 400 and the vibration mechanism 300 are not easily damaged by external influences.
[0037] The upper cover plate 600 is provided with an upper opening 610 , and the feed port 220 of the powder bin 200 is directly opposite to the upper opening 610 , so that the powder weighing device can add the weighed powder into the powder bin 200 through the feed port 220 .
[0038] An upper stop 250 is provided on the upper part of the powder bin 200, and the upper opening 610 is matched with the upper stop 250, that is, the upper stop 250 extends vertically so as to be inserted into the upper opening 610 and abut against the peripheral wall of the upper opening 610, and the upper stop 250 extends horizontally so as to avoid abutting against the lower edge of the upper opening 610. In this way, the powder bin 200 and the upper cover 600 are closely matched, and the powder bin 200 is further not easy to shake relative to the powder adding box frame 100, thereby improving the stability of the powder adding device 1000.
[0039] A slider 110 is provided at the bottom of the powder adding box frame 100, and the slider 110 is used to slide and cooperate with the slide rail of the press. In this embodiment, the slider 110 is a dovetail block, and the corresponding slide groove on the slide rail of the powder press is a dovetail groove.
[0040] The slider 110 is provided with a mounting groove 111, in which a shock absorbing assembly 120 is installed. The shock absorbing assembly 120 is kept tightly between the mounting groove 111 and the slide rail, so that the slider 110 is relatively stable when sliding along the slide rail, and is not easy to shake and collide due to the vibration of the vibration mechanism 300.
[0041] The shock absorbing assembly 120 includes a spring plunger 121 and a butt joint 122. The spring in the spring plunger 121 can provide a driving force for the plunger head toward the outside. The plunger head of the spring plunger 121 abuts against the inner side of the butt joint 122. Part of the butt joint 122 can extend out of the mounting groove 111 and abut against the inner wall of the slide rail under the drive of the spring plunger 121. In this way, the butt joint 122 is kept against the slide rail. At the same time, when the vibration mechanism 300 vibrates, the energy transmitted to the powder adding device 1000 is converted into the elastic energy of the spring plunger 121, thereby playing a buffering role, making it difficult for the slider 110 to collide with the slide rail, and the powder adding device 1000 operates stably.
[0042] Preferably, the abutment joint 122 is made of copper to ensure its strength and ductility. A polytetrafluoroethylene gasket 123 is arranged on the outside of the abutment joint 122 to prevent the abutment joint 122 from being worn.
[0043] In this embodiment, the spring plunger 121 is arranged perpendicular to the side of the slider 110, and the surface of the abutment head 122 is parallel to the side of the slider 110. Thus, the elastic force of the spring plunger 121 can stably act on the abutment head 122, so that the abutment head 122 stably abuts against the inner wall of the slide rail.
[0044] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.
Claims
1. A powder adding device, characterized in that: The powder adding device (1000) comprises a powder adding box frame (100), a powder bin (200), a vibration mechanism (300) and a pressing mechanism (400); a containing cavity (210) for containing powder is provided in the powder bin (200); a notch is provided at the lower side of the powder adding box frame (100); the powder bin (200), the vibration mechanism (300) and the pressing mechanism (400) are all installed in the powder adding box frame (100); and the lower part of the powder bin (200) fits in the lower notch of the powder adding box frame (100); The vibration mechanism (300) is connected to the powder bin (200) and drives the powder bin (200) to vibrate, and the downward pressure mechanism (400) is connected to the powder bin (200) and provides downward pressure for the powder bin (200); a lower stopper (240) is provided at the lower part of the peripheral side of the powder bin (200), and the lower stopper (240) is limited to the upper part of the notch of the powder adding box frame (100), and a flexible sealing ring (500) is circumferentially nested in the lower stopper (240), and the flexible sealing ring (500) abuts against the edge of the lower stopper (240) and the notch of the powder adding box frame (100).
2. A powder adding device as claimed in claim 1, characterized in that: The pressing mechanism (400) comprises a connecting block (410) and a fixed cylinder (420), wherein the cylinder body of the fixed cylinder (420) is fixed to the inner bottom wall of the powder adding box frame (100), the connecting block (410) is fixed to the outer wall of the powder bin (200) and is located above the fixed cylinder (420), and the piston rod of the fixed cylinder (420) is connected to the connecting block (410).
3. A powder adding device as claimed in claim 2, characterized in that: Two pressing mechanisms (400) are provided, and the two pressing mechanisms (400) are arranged at the front and rear ends of the powder bin (200).
4. A powder adding device as claimed in claim 3, characterized in that: The vibration mechanism (300) comprises an electric vibrator, and the electric vibrator is arranged in the middle of one of the left and right sides of the powder bin (200).
5. A powder adding device as claimed in claim 1, characterized in that: An upper cover plate (600) is arranged above the powder adding box frame (100), and the upper cover plate (600) covers the upper part of the powder adding box frame (100). An upper opening (610) is arranged on the upper cover plate (600), and a feed port (220) of the powder bin (200) is directly opposite to the upper opening (610).
6. A powder adding device as claimed in claim 5, characterized in that: An upper stopper (250) is provided at the upper portion of the powder bin (200), and the upper opening (610) fits with the upper stopper (250).
7. A powder adding device as claimed in claim 1, characterized in that: A slider (110) is provided at the bottom of the powder adding box frame (100), and the slider (110) is used for slidingly matching with the slide rail of the press. The slider (110) is provided with a mounting groove (111), and a shock absorbing component (120) is installed in the mounting groove (111). The shock absorbing component (120) is kept tightly between the mounting groove (111) and the slide rail.
8. A powder adding device as claimed in claim 7, characterized in that: The shock absorbing assembly (120) comprises a spring plunger (121) and an abutment joint (122); the plunger head of the spring plunger (121) abuts against the inner side of the abutment joint (122); a portion of the abutment joint (122) can extend out of the mounting groove (111) and abut against the inner wall of the slide rail under the drive of the spring plunger (121).
9. A powder adding device as claimed in claim 8, characterized in that: The abutment joint (122) is made of copper, and a polytetrafluoroethylene gasket (123) is arranged on the outside of the abutment joint (122).
10. A powder adding device as claimed in claim 8, characterized in that: The slider (110) is a dovetail block, the spring plunger (121) is arranged perpendicular to the side of the slider (110), and the surface of the abutment head (122) is parallel to the side of the slider (110).