Powder forming multi-stage buffer ejector plate capable of preventing demolding cracking

Abstract

The utility model discloses a powder forming anti-demoulding cracking multistage buffer ejector plate, which belongs to the technical field of powder forming, and comprises a support base, a multistage buffer is slidably connected outside the support base, an ejector plate body is fixedly connected above the multistage buffer, four contact plates are arranged in the ejector plate body, and the contact plates are arranged on the support base. A guide rod is fixedly connected to one side of the contact plate, a cleaning structure is arranged in the ejection plate body, a sliding groove is formed in the outer portion of the ejection plate body, an adjusting structure is connected to the outer portion of the ejection plate body, and the adjusting structure is connected into the sliding groove in a sliding mode. Through the arrangement of the cleaning structure, the ejection plate body, the contact plate and the guide rod, the ejection plate can clean the overturned contact plate through the cooperation of the first threaded rod, the second threaded rod and the adjusting rod, so that the product surface is prevented from being polluted by residues, the surface smoothness and consistency of formed parts are improved, and the production efficiency is improved. And the shutdown time caused by cleaning is shortened, and the overall production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of powder molding technology, specifically a multi-level buffer ejector plate for preventing demolding and cracking in powder molding. Background Technology

[0002] Powder molding technology is a technique that mixes metal powder with a binder and then uses injection molding to manufacture high-precision parts. Its core advantage lies in its ability to achieve high-precision and complex structure molding, while improving the density and mechanical properties of the product through subsequent sintering steps. Multi-stage buffer ejector plates are equipment components used in powder metallurgy molding to prevent cracking of products during demolding. Typically, in the powder metallurgy pressing process, powder is pressed into a molding die, and then the molded part is pushed out of the die by the ejector plate. The ejector plate comes into contact with the powder during use. However, most ejector plates do not have a self-cleaning structure. When the ejector plate comes into contact with the powder, residues easily accumulate, making cleaning difficult and affecting subsequent production efficiency and product quality. Utility Model Content

[0003] The purpose of this invention is to provide a multi-stage buffer ejector plate for preventing demolding and cracking in powder molding, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage buffer ejector plate for preventing demolding and cracking in powder molding, comprising a support base, a multi-stage buffer slidably connected to the support base, an ejector plate body fixedly connected above the multi-stage buffer, four contact plates disposed within the ejector plate body, a guide rod fixedly connected to one side of each contact plate, a cleaning structure disposed within the ejector plate body, a groove formed outside the ejector plate body, an adjustment structure connected outside the ejector plate body, the adjustment structure slidably connected within the groove, the adjustment structure being connected to the guide rod, the cleaning structure comprising a first threaded rod, a second threaded rod, and an auxiliary frame, an adjustment rod disposed within the auxiliary frame, a cleaning scraper slidably connected to the adjustment rod, a motor connected to one end of the first threaded rod, and an anti-slip belt connected externally to the first threaded rod.

[0005] As a further preferred embodiment of this technical solution, the guide rod is rotatably connected to the ejector plate body, and the four contact plates overlap each other.

[0006] As a further preferred embodiment of this technical solution, the first threaded rod is rotatably connected to one side of the ejector plate body, the second threaded rod is rotatably connected to the other side of the ejector plate body, and the auxiliary frame is threadedly connected to the outside of the first threaded rod.

[0007] As a further preferred embodiment of this technical solution, the auxiliary frame is threadedly connected to the outside of the second threaded rod, the motor is fixedly connected to the body of the ejector plate, and the first threaded rod is connected to the second threaded rod through an anti-slip strip.

[0008] As a further preferred embodiment of this technical solution, the adjustment structure includes a gear and a telescopic device. The telescopic device is fixedly connected to the body of the top plate, and a movable plate is connected to one end of the telescopic device. A toothed plate is fixedly connected above the movable plate.

[0009] As a further preferred embodiment of this technical solution, the gear is fixedly connected to one end of the guide rod, the gear meshes with the gear plate, and the movable plate is slidably connected in the groove.

[0010] This utility model provides a multi-stage buffer ejector plate for preventing demolding and cracking in powder molding, which has the following features:

[0011] Beneficial effects:

[0012] (1) This utility model sets up a cleaning structure, an ejector plate, a contact plate and a guide rod. The motor drives the first threaded rod to rotate. Since the first threaded rod is connected to the second threaded rod through an anti-slip strip, the first threaded rod and the second threaded rod will rotate synchronously. The auxiliary frame will slide on its surface. When the auxiliary frame slides to the appropriate position, the cleaning scraper will overlap the surface of the contact plate. When the cleaning scraper moves on the surface of the adjusting rod, it will clean the contact plate. The ejector plate can clean the flipped contact plate through the cooperation between the first threaded rod, the second threaded rod and the adjusting rod, so as to avoid residue contamination of the product surface, improve the surface smoothness and consistency of the molded parts, reduce the downtime due to cleaning and improve the overall production efficiency.

[0013] (2) By setting an adjustment structure, when the formed powder is pushed out, the telescopic device applies a pushing force to the moving plate, and the moving plate slides in the groove. Since the toothed plate meshes with the gear, the contact plate rotates around the guide rod, so that the four contact plates can achieve the function of synchronous flipping. The flipped contact plate can push out other powder in time, ensuring the flexibility of the ejector plate. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional cross-sectional structural diagram of the ejector plate of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the adjustment structure of this utility model;

[0017] Figure 4This is a three-dimensional cross-sectional structural diagram of the cleaning structure of this utility model.

[0018] In the diagram: 1. Support base; 2. Multi-stage buffer; 3. Ejector plate; 4. Contact plate; 5. Guide rod; 6. Cleaning structure; 601. First threaded rod; 602. Second threaded rod; 603. Auxiliary frame; 604. Adjusting rod; 605. Cleaning scraper; 606. Anti-slip strip; 607. Motor; 7. Adjusting structure; 701. Gear; 702. Telescopic device; 703. Moving plate; 704. Toothed plate; 8. Slide groove. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] This utility model provides a technical solution: such as Figure 1 and Figure 4 As shown in this embodiment, a multi-stage buffer ejector plate for preventing demolding and cracking in powder molding includes a support base 1. A multi-stage buffer 2 is slidably connected to the support base 1. An ejector plate body 3 is fixedly connected above the multi-stage buffer 2. Four contact plates 4 are provided inside the ejector plate body 3. A guide rod 5 is fixedly connected to one side of the contact plate 4. A cleaning structure 6 is provided inside the ejector plate body 3. A groove 8 is opened outside the ejector plate body 3. An adjustment structure 7 is connected to the outside of the ejector plate body 3. The adjustment structure 7 is slidably connected in the groove 8. The adjustment structure 7 is connected to the guide rod 5. The cleaning structure 6 includes a first threaded rod 601, a second threaded rod 602, and an auxiliary frame 603. An adjustment rod 604 is provided inside the auxiliary frame 603. A cleaning scraper 605 is slidably connected to the outside of the adjustment rod 604. A motor 607 is connected to one end of the first threaded rod 601. An anti-slip belt 606 is drivenly connected to the outside of the first threaded rod 601.

[0021] like Figure 1 and Figure 3 As shown, the adjustment structure 7 includes a gear 701 and a telescopic device 702. The telescopic device 702 is fixedly connected to the outside of the ejector plate 3. One end of the telescopic device 702 is connected to a movable plate 703. A toothed plate 704 is fixedly connected above the movable plate 703. The gear 701 is fixedly connected to one end of the guide rod 5. The gear 701 meshes with the toothed plate 704. The movable plate 703 is slidably connected in the slide groove 8.

[0022] By setting the slide groove 8, the telescopic device 702 applies a thrust to the moving plate 703, and the moving plate 703 will slide in the slide groove 8, so that the slide groove 8 plays a certain guiding role in the movement of the toothed plate 704, and avoids the toothed plate 704 from deviating during movement.

[0023] like Figure 2 and Figure 4As shown, the guide rod 5 is rotatably connected inside the ejector plate 3, the four contact plates 4 overlap each other, the first threaded rod 601 is rotatably connected to one side inside the ejector plate 3, the second threaded rod 602 is rotatably connected to the other side inside the ejector plate 3, the auxiliary frame 603 is threaded to the outside of the first threaded rod 601, the auxiliary frame 603 is threaded to the outside of the second threaded rod 602, the motor 607 is fixedly connected inside the ejector plate 3, and the first threaded rod 601 is connected to the second threaded rod 602 through the anti-slip strip 606;

[0024] By setting an anti-slip strip 606, the motor 607 drives the first threaded rod 601 to rotate. Since the first threaded rod 601 is connected to the second threaded rod 602 through the anti-slip strip 606, the first threaded rod 601 and the second threaded rod 602 will rotate synchronously, and the auxiliary frame 603 will slide on its surface, so that the auxiliary frame 603 can move evenly on the surface of the first threaded rod 601 and the second threaded rod 602, avoiding the phenomenon of tilting when the auxiliary frame 603 moves.

[0025] This utility model provides a multi-stage buffer ejector plate for preventing demolding and cracking in powder molding. The specific working principle is as follows:

[0026] When the ejector plate pushes out the formed powder, the contact plate 4 comes into contact with the powder. After the formed powder is pushed out, the telescopic device 702 applies a pushing force to the moving plate 703, and the moving plate 703 slides in the groove 8. Since the toothed plate 704 meshes with the gear 701, the contact plate 4 rotates around the guide rod 5. When the contact plate 4 has finished flipping, the motor 607 drives the first threaded rod 601 to rotate. Since the first threaded rod 601 is connected to the second threaded rod 602 through the anti-slip strip 606, the first threaded rod 601 and the second threaded rod 602 will rotate synchronously, and the auxiliary frame 603 will slide on its surface. When the auxiliary frame 603 slides to the appropriate position, the cleaning scraper 605 will overlap the surface of the contact plate 4, and the cleaning scraper 605 will clean the contact plate 4 when it moves on the surface of the adjusting rod 604.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A powder forming anti-mold-release cracking multi-stage cushioning ejection plate comprising a supporting base (1), characterized in that: The support base (1) is slidably connected to a multi-stage buffer (2). An ejector plate (3) is fixedly connected above the multi-stage buffer (2). Four contact plates (4) are provided inside the ejector plate (3). A guide rod (5) is fixedly connected to one side of each contact plate (4). A cleaning structure (6) is provided inside the ejector plate (3). A sliding groove (8) is opened on the outside of the ejector plate (3). An adjustment structure (7) is connected to the outside of the ejector plate (3). The adjustment structure (7) is slidably connected to... Inside the chute (8), the adjustment structure (7) is connected to the guide rod (5). The cleaning structure (6) includes a first threaded rod (601), a second threaded rod (602), and an auxiliary frame (603). An adjustment rod (604) is provided inside the auxiliary frame (603). A cleaning scraper (605) is slidably connected to the adjustment rod (604). A motor (607) is connected to one end of the first threaded rod (601). An anti-slip belt (606) is driven to the outside of the first threaded rod (601).

2. A multi-stage cushioning ejection plate for powder forming without mold release cracking according to claim 1, characterized in that: The guide rod (5) is rotatably connected inside the ejector plate (3), and the four contact plates (4) overlap each other.

3. A multi-stage cushioning ejector plate for powder forming without mold release cracking as defined in claim 1, wherein: The first threaded rod (601) is rotatably connected to one side inside the ejector plate (3), the second threaded rod (602) is rotatably connected to the other side inside the ejector plate (3), and the auxiliary frame (603) is threadedly connected to the outside of the first threaded rod (601).

4. A multi-stage cushioning ejector plate for powder forming without ejection cracking as defined in claim 1, wherein: The auxiliary frame (603) is threaded to the outside of the second threaded rod (602), the motor (607) is fixedly connected inside the ejector plate (3), and the first threaded rod (601) is connected to the second threaded rod (602) through the anti-slip strip (606).

5. A multi-stage cushioning ejector plate for powder forming without ejection cracking as defined in claim 1, wherein: The adjustment structure (7) includes a gear (701) and a telescopic device (702). The telescopic device (702) is fixedly connected to the outside of the ejector plate (3). One end of the telescopic device (702) is connected to a movable plate (703). A toothed plate (704) is fixedly connected above the movable plate (703).

6. A multi-stage cushioning ejector plate for powder forming ejection without die cracking, according to claim 5, wherein: The gear (701) is fixedly connected to one end of the guide rod (5), the gear (701) meshes with the toothed plate (704), and the movable plate (703) is slidably connected in the slide groove (8).

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