Feeding device for powder forming presses

Abstract

The utility model relates to feeding device technical field, and disclose powder forming press is with feeding device, including machine body, the top of machine body is equipped with feed pipe, the top fixedly connected with feed hopper of feed pipe, the inner wall of feed hopper is equipped with screening component, the utility model discloses the work of motor can drive second gear and second gear rotate, can drive rotating rod rotation, thereby through the rotating plate sliding rod rotation is driven, because first gear outer wall one -half portion is equipped with tooth, and then the second gear rotates to the part of first gear without tooth, rotating rod will be reset by the spring force of sliding rod, and then the continuous rotation of second gear can make that the rotating plate small amplitude reciprocating rotation, the inside reciprocating rotation of screen disc in feed pipe, and then the material will pass through the screen disc when passing through feed pipe, the screen disc will be through the rotation and scatter the material, and then the material that will not appear agglomeration enters the inside of machine body.

Description

Technical Field

[0001] This utility model relates to the field of feeding devices, specifically a feeding device for a powder forming press. Background Technology

[0002] The feeding device for powder molding presses is a key component of powder molding equipment. It is mainly used to uniformly and efficiently feed powder material into the mold cavity, ensuring filling density and uniformity during the molding process. Currently, feeding devices are commonly used in powder compression molding production. Existing feeding devices mainly consist of corresponding feeding shoes. During use, material is added to the feeding shoes, and the material falls into the mold cavity by gravity. However, for powders with poor flowability or prone to bridging and agglomeration, they may not be able to fall into the mold cavity by gravity, or the amount of powder falling into the mold cavity may be insufficient. Uneven powder distribution may also occur, leading to dimensional deviations in the molded product.

[0003] To address the aforementioned issues, a feeding device for a powder forming press, published in Chinese Patent Publication No. CN210881070U, uses a cylinder to apply pressure to a lever frame, ensuring the feeding shoe adheres tightly to the work platform surface to prevent powder leakage. A linear motor drives a sliding plate to slide on a linear guide rail, which in turn causes the feeding shoe to move linearly. This linear movement of the feeding shoe causes the rubber wheel to roll, thereby rotating the stirring shaft. The stirring shaft rotates inside the feeding shoe, which can disrupt the bridging state of the powder and break up clumps. Furthermore, because the rotation speed is slow, it does not cause powder segregation.

[0004] While the comparative patent solves the problem of powders with poor flowability or prone to bridging and clumping not being able to fall into the mold cavity by gravity or having insufficient powder mass falling into the mold cavity, and also has the problem of uneven powder distribution, resulting in out-of-tolerance dimensions of the product after molding, the feeding shoe of this device needs to move back and forth continuously, which leads to greater wear on the equipment and reduces the service life of the device.

[0005] Regarding the aforementioned technologies, the device suffers from the drawback that the feeding shoe needs to move back and forth continuously, resulting in significant wear and tear on the equipment and reducing its service life. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a feeding device for a powder forming press. The feeding shoe of this device does not need to move back and forth continuously, thus reducing wear on the equipment and extending the service life of the device. This solves the problem that the feeding shoe of the existing device needs to move back and forth continuously, resulting in excessive wear on the equipment and reducing the service life of the device.

[0008] (II) Technical Solution

[0009] To achieve the goal of extending the service life of the device by eliminating the need for continuous reciprocating movement of the feeding shoe, thus preventing excessive wear on the equipment, this utility model provides the following technical solution: a feeding device for a powder forming press, comprising a body, a feeding pipe at the top of the body, a feeding hopper fixedly connected to the top of the feeding pipe, and a screening component on the inner wall of the feeding hopper.

[0010] The screening component includes a slide rail formed on the inner wall of the feed pipe, a slide plate slidably connected to the inner wall of the slide rail, a screen plate fixedly connected to the inner wall of the slide plate, a wire mesh fixedly connected to the inner wall of the screen plate, a spring fixedly connected to the outer wall of the screen plate, a sliding rod fixedly connected to the outer wall of the screen plate, and a driving component provided on the outer wall of the feed pipe.

[0011] As a preferred embodiment of this utility model, the slide is a ring-shaped structure, and the shape of the slide plate is the same as that of the slide.

[0012] As a preferred embodiment of this utility model, the inner wall of the feed tube is provided with a groove, and one end of the spring is fixedly connected to the inner wall of the groove.

[0013] As a preferred embodiment of this utility model, the outer wall of the feed pipe is provided with a channel, and the channel is slidably connected to the sliding rod.

[0014] As a preferred technical solution of this utility model, the driving component includes a rotating rod rotatably connected to the outer wall of the feed pipe, a first gear is fixedly sleeved on the outer wall of the rotating rod, and teeth are provided on half of the outer wall of the first gear. A rotating plate is fixedly sleeved on the outer wall of the rotating rod, and a through groove is provided on one side of the rotating plate. The through groove is slidably sleeved with a sliding rod.

[0015] As a preferred technical solution of this utility model, the driving component further includes a frame fixedly connected to the outer wall of the feed pipe, a motor fixedly connected to one side of the frame, and a second gear fixedly connected to the output end of the motor through a coupling, the second gear meshing with the first gear.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a feeding device for a powder forming press, which has the following advantages:

[0018] 1. The motor drives the second gear to rotate, which in turn drives the rotating rod to rotate. This, in turn, drives the sliding rod to rotate via the rotating plate. Since the outer half of the first gear has teeth, when the second gear rotates to the toothless part of the first gear, the rotating rod is reset by the spring force of the sliding rod. The continuous rotation of the second gear causes the rotating plate to rotate back and forth slightly. The screen plate rotates back and forth inside the feed pipe, so the material passes through the screen plate as it passes through the feed pipe. The screen plate breaks up the material by rotating, preventing lumps of material from entering the machine. The feeding shoe of this device does not need to move back and forth continuously, which reduces wear on the equipment and extends the service life of the device.

[0019] 2. The first gear has teeth on half of its outer wall. When the second gear rotates to the part of the first gear that has no teeth, the rotating rod will be reset by the spring force of the sliding rod. The continuous rotation of the second gear can make the rotating plate rotate back and forth in a small range, which in turn makes the screen plate rotate back and forth inside the feed pipe, thus further meeting the usage requirements of the device and making it worthy of promotion. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the feeding device for a powder forming press.

[0021] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0022] Figure 3 This is a cross-sectional view of the feed pipe in this application;

[0023] Figure 4 for Figure 3 Enlarged view of the structure at point B;

[0024] Figure 5 This is a top view of the sieve disc in this application.

[0025] In the diagram: 1. Machine body; 2. Feed pipe; 3. Feed hopper; 4. Screen plate; 5. Slide rail; 6. Slide plate; 7. Groove; 8. Spring; 9. Mesh wire; 10. Channel; 11. Sliding rod; 12. Rotating rod; 13. First gear; 14. Through groove; 15. Rotating plate; 16. Frame; 17. Motor; 18. Second gear. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] Reference Figure 1-5 The first embodiment of this utility model provides a feeding device for a powder forming press, including a machine body 1, a feeding pipe 2 at the top of the machine body 1, a feeding hopper 3 fixedly connected to the top of the feeding pipe 2, and a screening component on the inner wall of the feeding hopper 3.

[0029] The screening component includes a slide 5 opened on the inner wall of the feed pipe 2, a slide plate 6 slidably connected to the inner wall of the slide 5, a screen plate 4 fixedly connected to the inner wall of the slide plate 6, a wire mesh 9 fixedly connected to the inner wall of the screen plate 4, a spring 8 fixedly connected to the outer wall of the screen plate 4, a sliding rod 11 fixedly connected to the outer wall of the screen plate 4, and a driving component provided on the outer wall of the feed pipe 2.

[0030] Specifically, the slide 5 is a ring structure, the slide plate 6 is the same shape as the slide 5, and the screen plate 4 can rotate inside the feed pipe 2 by sliding the slide plate 6 on the inner wall of the slide 5.

[0031] Specifically, the inner wall of the feed pipe 2 is provided with a groove 7, and one end of the spring 8 is fixedly connected to the inner wall of the groove 7. After the screen plate 4 is subjected to force and rotates on the inner wall of the feed pipe 2, it will be reset by the elastic force of the spring 8 when it is not subjected to force.

[0032] Specifically, a channel 10 is provided on the outer wall of the feed pipe 2. The channel 10 is slidably connected to the sliding rod 11, and the sliding rod 11 can extend to the outside of the feed pipe 2 through the channel 10.

[0033] Reference Figure 1-5 The driving component includes a rotating rod 12 rotatably connected to the outer wall of the feed pipe 2. A first gear 13 is fixedly sleeved on the outer wall of the rotating rod 12. The outer half of the outer wall of the first gear 13 is provided with teeth. A rotating plate 15 is fixedly sleeved on the outer wall of the rotating rod 12. A through groove 14 is opened on one side of the rotating plate 15. The through groove 14 is slidably sleeved with the sliding rod 11. The rotating rod 12 can rotate outside the feed pipe 2 and can drive the sliding rod 11 to move through the rotating plate 15. Then the sliding rod 11 can drive the screen plate 4 to reset.

[0034] Furthermore, the drive component also includes a frame 16 fixedly connected to the outer wall of the feed pipe 2. A motor 17 is fixedly connected to one side of the frame 16. The output end of the motor 17 is fixedly connected to a second gear 18 via a coupling. The second gear 18 meshes with the first gear 13. When the motor 17 is started, the output end of the motor 17 can drive the second gear 18 to rotate via the coupling. The second gear 18 can then drive the first gear 13 to rotate, which in turn drives the rotating rod 12 to rotate. This, in turn, drives the sliding rod 11 to rotate via the rotating plate 15. Since the outer half of the first gear 13 has teeth, when the second gear 18 rotates to the part of the first gear 13 without teeth, the rotating rod 12 will be reset by the elastic force of the sliding rod 11 through the spring 8. The continuous rotation of the second gear 18 can cause the rotating plate 15 to rotate back and forth slightly, thereby causing the screen 4 to rotate back and forth inside the feed pipe 2.

[0035] During operation, the motor 17 is started, and the output end of the motor 17 drives the second gear 18 to rotate via the coupling. The second gear 18 then drives the first gear 13 to rotate, which in turn drives the rotating rod 12 to rotate. This, in turn, drives the sliding rod 11 to rotate via the rotating plate 15. Since the outer half of the first gear 13 has teeth, when the second gear 18 rotates to the part of the first gear 13 without teeth, the rotating rod 12 will be reset by the elastic force of the sliding rod 11 through the spring 8. The continuous rotation of the second gear 18 can cause the rotating plate 15 to rotate back and forth slightly, which in turn causes the screen plate 4 to rotate back and forth inside the feed pipe 2. As the material passes through the feed pipe 2, it will pass through the screen plate 4. The screen plate 4 will break up the material by rotating, so that no lumpy material will enter the machine body 1. Thus, the feeding shoe of this device does not need to move back and forth continuously, which will not cause excessive wear on the equipment.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A feeding device for a powder forming press, comprising a machine body (1), wherein a feed pipe (2) is provided at the top of the machine body (1), and a feed hopper (3) is fixedly connected to the top of the feed pipe (2), characterized in that: The inner wall of the feed hopper (3) is provided with a screening component; The screening component includes a slide (5) opened on the inner wall of the feed pipe (2), a slide plate (6) slidably connected to the inner wall of the slide (5), a screen plate (4) fixedly connected to the inner wall of the slide plate (6), a wire mesh (9) fixedly connected to the inner wall of the screen plate (4), a spring (8) fixedly connected to the outer wall of the screen plate (4), a sliding rod (11) fixedly connected to the outer wall of the screen plate (4), and a driving component provided on the outer wall of the feed pipe (2). The outer wall of the feed pipe (2) is provided with a channel (10), and the channel (10) is slidably connected to the sliding rod (11); the driving component includes a rotating rod (12) rotatably connected to the outer wall of the feed pipe (2), a first gear (13) is fixedly sleeved on the outer wall of the rotating rod (12), the outer half of the outer wall of the first gear (13) is provided with teeth, a rotating plate (15) is fixedly sleeved on the outer wall of the rotating rod (12), a through groove (14) is provided on one side of the rotating plate (15), and the through groove (14) is slidably sleeved with the sliding rod (11); the driving component also includes a frame (16) fixedly connected to the outer wall of the feed pipe (2), a motor (17) is fixedly connected to one side of the frame (16), and a second gear (18) is fixedly connected to the output end of the motor (17) through a coupling, and the second gear (18) meshes with the first gear (13).

2. The feeding device for a powder forming press according to claim 1, characterized in that: The slide (5) is a ring structure, and the slide plate (6) has the same shape as the slide (5).

3. The feeding device for a powder forming press according to claim 1, characterized in that: The inner wall of the feed pipe (2) is provided with a groove (7), and one end of the spring (8) is fixedly connected to the inner wall of the groove (7).

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