Powder box

Abstract

The utility model relates to a powder box, and relates to the field of powder forming equipment. The powder box comprises a box body, a feeding port and a rotating device, the box body is provided with a cavity for containing powder, a plurality of stirring rods distributed in the circumferential direction are arranged in the cavity, a mounting shaft is arranged on the box body, the stirring rods are fixed to the mounting shaft, the mounting shaft is rotationally connected with the box body, and the rotating device for driving the mounting shaft to rotate is arranged on the box body. After powder enters the cavity from the feeding port, the rotating device drives the stirring rod to rotate so that the powder can be evenly stirred. The powder stirring device has the effect of stirring fed powder to enable the powder feeding amount to be uniform.

Description

Technical Field

[0001] The present application relates to the field of powder forming equipment, and in particular to a powder box. Background Art

[0002] A powder forming press is a device that compresses metal or ceramic powder into a product of a specific shape. Existing powder forming presses typically feature a powder feeding mechanism, which includes a powder box and a drive mechanism for moving the box. The box is connected to a powder storage barrel via a feed pipe. During powder feeding, the drive mechanism propels the box toward the mold, where the powder is sprinkled onto the mold. The box then moves back and forth, spreading the powder within the mold holes. Excess powder is then carried back into the box.

[0003] However, this method of using the powder box to spread the powder has certain drawbacks. The powder box usually moves back and forth in one direction. If the powder box is not completely filled with powder, the powder in the powder box will be pushed to one side due to inertia during the powder box movement. The powder box can only move back and forth in one direction, resulting in the powder in the other direction being unable to move. Therefore, in the direction where the powder box cannot move, if the powder intake is greater on one side and less on the other side in that direction, the die holes corresponding to the side with less powder may not be fully filled, and the powder on the other side cannot compensate. This results in uneven powder intake in different die holes, which may cause uneven thickness of the product. Utility Model Content

[0004] In order to solve the problem of uneven powder feeding, the present application provides a powder box.

[0005] The present application provides a powder box adopting the following technical solution:

[0006] A powder box comprises a box body, wherein the box body has a cavity for accommodating powder, a feed port is passed through the box body, the feed port is communicated with the cavity, a plurality of stirring rods distributed circumferentially are provided in the cavity, the box body is provided with a mounting shaft, the stirring rods are fixed on the mounting shaft, the mounting shaft is rotatably connected to the box body, and the box body has a rotating device for driving the mounting shaft to rotate.

[0007] By adopting the above technical solution, after the powder enters the cavity through the feed port, the stirring rod fixed on the mounting shaft is stirred by the driving of the rotating device. The circumferentially distributed stirring rods enable the powder in different directions in the cavity to be stirred evenly, and the amount of powder entering the die hole is relatively uniform.

[0008] Preferably, one end of the mounting shaft is provided with a mounting groove for the stirring rod to be inserted into, and the stirring rod is fixed in the mounting groove by a fastener.

[0009] Preferably, the stirring rod includes a mounting block and a stirring rod, one end of the stirring rod is fixedly connected to the mounting block, and the mounting block is snapped into the mounting groove.

[0010] Preferably, the fastener is a fixing bolt, and a plurality of the mounting blocks enclose an opening for the fixing bolt to pass through so as to fix the stirring rod on the mounting shaft.

[0011] Preferably, a washer is provided on the mounting block, the washer is sleeved on the rod of the fixing bolt, and the washer is located between the head of the fixing bolt and the mounting block.

[0012] Preferably, a scraper is connected to the stirring rod, and the stirring rod has a slot for inserting the scraper.

[0013] Preferably, one side of the box body is provided with a wear-resistant strip, and the wear-resistant strip and the stirring rod are located on the same side of the box body.

[0014] Preferably, the cavity is circular in shape, and the stirring rods are circumferentially distributed around the central axis of the mounting shaft.

[0015] Preferably, a stirring claw is provided at one end of the stirring rod away from the mounting shaft.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] The powder is fed evenly. The stirring rod stirs the powder in different directions in the powder box so that the powder fed into the die holes at different positions is relatively uniform.

[0018] The stirring rod is detachable. Compared with traditional welding, each stirring rod is separate and can be disassembled. When you need to replace an individual stirring rod, you only need to remove the stirring rod, without replacing the entire stirring blade;

[0019] The service life is long. The edges of the powder box are equipped with wear-resistant strips, and the stirring rod is equipped with a scraper strip, which is wear-resistant and can be replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of a powder box in an embodiment of the present application.

[0021] Figure 2 This is a front view of a powder box in an embodiment of the present application.

[0022] Figure 3 This is a schematic diagram of an explosion of a powder box in an embodiment of the present application.

[0023] Figure 4 This is another exploded schematic diagram of a powder box in an embodiment of the present application

[0024] Figure 5 It is a cross-sectional view of a powder box in an embodiment of the present application.

[0025] Figure 6 Schematic diagram of the explosion of the stirring rod in the embodiment of the present application.

[0026] Explanation of the accompanying drawings: 1. Box body; 2. Feed inlet; 3. Rotating device; 11. Cavity; 4. Stirring mechanism; 41. Stirring rod; 42. Mounting shaft; 421. Mounting groove; 5. Fastener; 411. Mounting block; 412. Stirring rod; 51. Fixing bolt; 6. Opening; 7. Notch; 8. Washer; 413. Scraper strip; 414. Card strip; 415. Card slot; 416. Stirring claw; 9. Wear-resistant strip; 31. Rotating and swinging cylinder. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-6 This application is described in further detail.

[0028] The embodiment of the present application discloses a powder box. Figure 1 and Figure 2 The powder box includes a box body 1, a feed port 2 and a rotating device 3. The box body 1 has a cavity 11 for holding powder, and a stirring mechanism 4 is provided in the cavity 11. The stirring mechanism 4 is used to stir the powder so that the powder is distributed relatively evenly. The feed port 2 runs through the box body 1, and the feed port 2 is connected to the cavity 11. One end of the feed port 2 can be connected to a storage barrel so that the feed can be replenished at any time. The rotating device 3 is located on the box body 1 and is used to drive the stirring mechanism 4 to rotate. When the powder enters the cavity 11 from the feed port 2, the rotating device 3 drives the stirring mechanism 4 to rotate so that the powder is stirred evenly.

[0029] Reference Figure 1 and Figure 3 The stirring mechanism 4 includes a fixedly connected stirring rod 41 and a mounting shaft 42. The stirring rod 41 and the mounting shaft 42 are located in the cavity 11, and there are several stirring rods 41 distributed circumferentially around the central axis of the mounting shaft 42. The cavity 11 is preferably circular, and the powder can be scraped into the cavity 11 from all directions by scraping powder with the circular edge. One end of the mounting shaft 42 is fixedly connected to the stirring rod 41, and the mounting shaft 42 has a mounting groove 421 for the stirring rod 41 to be inserted, and the stirring rod 41 is fixed in the mounting groove 421 by a fastener 5. As a preferred embodiment, the fastener 5 in the embodiment of the present application is a bolt. Obviously, other fasteners 5 such as screws and rivets can also be equivalently replaced. The other end of the mounting shaft 42 is rotatably connected to the box body 1. As a preferred embodiment, the mounting shaft 42 rotates coaxially with the rotating device 3, the rotating device 3 drives the mounting shaft 42 to rotate, and the mounting shaft 42 drives the stirring rod 41 to rotate.

[0030] Reference Figure 3 and Figure 4 In one embodiment, four stirring rods 41 are provided, and the stirring rods 41 include a mounting block 411 and a stirring rod 412. The mounting block 411 and the stirring rod 412 are fixedly connected. In this embodiment, the mounting block 411 and the stirring rod 412 are integrally arranged. The mounting block 411 is located at one end of the stirring rod 41 to be inserted into the mounting groove 421, and the stirring rod 412 is used to stir the powder. The fastener 5 that fixes the mounting block 411 to the mounting groove 421 is a fixing bolt 51. Specifically, each stirring rod 41 has a mounting block 411 at one end, and adjacent mounting blocks 411 abut against each other. The four mounting blocks 411 enclose an annular protrusion with a hole in the center, and the hole in the center is an opening 6 for installing the fixing bolt 51. Because the mounting blocks 411 abut against each other and are stuck in the mounting groove 421, the stirring rod 41 is difficult to rotate circumferentially. Obviously, the number of stirring rods 41 can be set as needed, but generally speaking, in order to ensure the stirring quality, the number of stirring rods 41 is preferably at least four. The mounting block 411 is inserted into the mounting groove 421, and the stirring rod 412 is preferably extended from the mounting groove 421 to the cavity 11 in such a manner that a notch 7 penetrating the side wall of the mounting shaft 42 is opened, and the stirring rod 412 extends from the notch 7 to the cavity 11. Figure 3 For example, the stirring rod 412 is fixedly connected to the mounting block 411 , so that the stirring rod 412 is located above the mounting groove 421 .

[0031] Reference Figure 4 and Figure 5 The fixing bolt 51 passes through the opening 6 to securely connect the stirring rod 41 to the mounting shaft 42. Specifically, the rod of the fixing bolt 51 passes through the opening 6 and is locked to the mounting shaft 42. The head of the fixing bolt 51 is pressed against the mounting block 411. The mounting block 411 is constrained between the head of the fixing bolt 51 and the mounting shaft 42, making it difficult to move axially. Thus, the stirring rod 41 is securely connected to the mounting shaft 42. Furthermore, a washer 8 is sleeved on the rod of the fixing bolt 51. The washer 8 is located between the mounting shaft 42 and the head of the fixing bolt 51. The washer 8 acts as a preventive measure and can disperse the pressure exerted by the mounting block 411 on the head of the fixing bolt 51.

[0032] Reference Figure 3 and Figure 6The stirring rod 412 is connected to a scraper 413, which is used to scrape away excess powder. Since the scraper 413 will have greater friction with the mold, the scraper 413 needs to be made of a wear-resistant material to increase its service life. The scraper 413 can be made of materials such as silicone or rubber. In a preferred embodiment, the scraper 413 is detachably connected to the stirring rod 412, and a clip 414 is provided on the scraper 413 along its length. The stirring rod 412 is provided with a slot 415 for the clip 414 to be inserted into. Specifically, one end of the slot 415 passes through the end of the stirring rod 412 away from the installation shaft 42. When installing the scraper 413, align the scraper 413 with the end of the slot 415 away from the installation shaft 42, and push the scraper 413 to finally make the clip 414 completely inserted into the slot 415. Obviously, the scraper 413 and the stirring rod 412 can also be connected by gluing.

[0033] A stirring claw 416 is provided at one end of the stirring rod 412 away from the mounting shaft 42. Due to the centrifugal effect, when the stirring rod 412 rotates, more powder will be present around the cavity 11, and less powder will be present in the center of the cavity 11. The provision of the stirring claw 416 can improve the stirring efficiency around the cavity.

[0034] One side of the box body 1 is provided with a wear-resistant strip 9, which is arranged on the same side as the cavity 11. The wear-resistant strip 9 is arranged along the circumference of the box body 1 on the side of the box body 1 on which it is located. The wear-resistant strip 9 can also be arranged around the cavity 11, and the wear-resistant strip 9 encloses the cavity 11. When the powder box moves, the wear-resistant strip 9 is in direct contact with the mold, and the wear-resistant strip 9 scrapes excess powder back into the cavity 11. The surface of the wear-resistant strip 9 and the scraping strip 413 facing the mold are on the same plane, so that the wear-resistant strip 9 and the scraping strip 413 are in contact with the mold at the same time. The wear-resistant strip 9 prevents the box body 1 from directly contacting the mold and is easy to replace, thereby increasing the service life of the entire powder box.

[0035] Reference Figure 2 and Figure 5 One embodiment of the rotating device 3 utilizes a rotary oscillating cylinder 31 capable of reciprocating motion within a certain angular range. The output shaft of the rotary oscillating cylinder 31 is coaxial with the mounting shaft 42 and connected via a flat key. Alternatively, the rotating device 3 may utilize other types of rotary cylinders or other actuators.

[0036] The working principle of a powder box according to an embodiment of the present application is as follows: after powder is fed from the feed port 2, the rotating device 3 drives the mounting shaft 42 to rotate, which in turn drives the stirring rod 41 to rotate. The stirring rod 412 stirs and evenly distributes the powder. Therefore, when the powder box is moved above the mold, the amount of powder entering the mold is relatively uniform. The wear-resistant strip 9 scrapes powder that has been spilled out of the cavity 11 back into the cavity 11. Similarly, the scraping strip 413 can also bring back excess powder.

[0037] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A powder box, comprising a box body (1), wherein the box body (1) has a cavity (11) for accommodating powder, and a feed port (2) passing through the box body (1), wherein the feed port (2) is in communication with the cavity (11), and wherein: A plurality of stirring rods (41) distributed circumferentially are provided in the cavity (11); a mounting shaft (42) is provided on the box body (1); the stirring rods (41) are fixed on the mounting shaft (42); the mounting shaft (42) is rotatably connected to the box body (1); and a rotating device (3) is provided on the box body (1) for driving the mounting shaft (42) to rotate.

2. The powder box according to claim 1, characterized in that: One end of the installation shaft (42) is provided with an installation groove (421) for the stirring rod (41) to be inserted into, and the stirring rod (41) is fixed in the installation groove (421) by a fastener (5).

3. The powder box according to claim 2, characterized in that: The stirring rod (41) comprises a mounting block (411) and a stirring rod (412), one end of the stirring rod (412) is fixedly connected to the mounting block (411), and the mounting block (411) is snapped into the mounting groove (421).

4. The powder box according to claim 3, characterized in that: The fastener (5) is a fixing bolt (51), and a plurality of the mounting blocks (411) enclose an opening (6) for the fixing bolt (51) to pass through the opening (6) so as to fix the stirring rod (41) on the mounting shaft (42).

5. The powder box according to claim 4, characterized in that: A washer (8) is provided on the mounting block (411), and the washer (8) is sleeved on the rod of the fixing bolt (51). The washer (8) is located between the head of the fixing bolt (51) and the mounting block (411).

6. The powder box according to claim 1, characterized in that: The stirring rod (41) is connected to a scraper bar (413), and the stirring rod (41) is provided with a slot (415) for inserting the scraper bar (413).

7. The powder box according to claim 1, characterized in that: One side of the box body (1) is provided with a wear-resistant strip (9), and the wear-resistant strip (9) and the stirring rod (41) are located on the same side of the box body (1).

8. The powder box according to claim 1, characterized in that: The cavity (11) is circular in shape, and the stirring rods (41) are circumferentially distributed around the central axis of the installation shaft (42).

9. The powder box according to claim 1, characterized in that: A stirring claw (416) is provided at one end of the stirring rod (41) away from the mounting shaft (42).

Images