Magnetic powder profiling lower die

Abstract

The utility model provides a magnetic powder profiling lower die which comprises a bottom plate, a die cavity is arranged on the bottom plate, an ejection mechanism is arranged on one side of the die cavity, the ejection mechanism comprises an ejection plate, the shape of the ejection plate is matched with that of the die cavity, and the ejection plate is used for driving the ejection plate to eject a magnetic powder prepressing piece in the die cavity out of the die cavity. Wherein the bottom plate further comprises two sliding rails, the mold cavity comprises a fixed mold cavity fixed to the bottom plate and two sliding mold cavities slidably connected to the two sliding rails respectively, the two sliding mold cavities are located on the two sides of the fixed mold cavity, elastic pieces and fastening pieces are arranged on the sliding mold cavities, one ends of the fastening pieces are connected to the fixed mold cavity, and the other ends of the fastening pieces are connected to the fixed mold cavity. The ejection mechanism further comprises two ejection rods and two ejection rod drives, and the ejection rod drives are used for driving the ejection rods to move towards the sliding mold cavity and enabling the sliding mold cavity to be separated from the fixed mold cavity in the direction of the sliding rail.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of magnetic materials, and particularly to a lower die for magnetic powder pressing and molding. Background Art

[0002] Magnetic powder pressing and molding refers to a process method for manufacturing magnetic components, which is usually used to make parts of magnetic materials, such as magnets, inductors, etc. In this process, magnetic powder is usually mixed with an adhesive and pressed into the required shape under high pressure. This method is usually used to produce magnetic materials that require specific shapes and properties because it can achieve high precision and complex shapes.

[0003] During the magnetic powder pressing and molding process, the products located on both sides of the mold cavity are prone to being damaged or broken during the ejection process due to excessive clamping force, resulting in a low yield rate. There is a need for a lower die for magnetic powder pressing and molding that can reduce the clamping force of the products located on both sides of the mold cavity before ejection. Summary of the Invention

[0004] The problem to be solved by the present utility model is: to provide a lower die for magnetic powder pressing and molding to solve the problem that the products located on both sides of the mold cavity are prone to being damaged or broken during the ejection process due to excessive clamping force during the magnetic powder pressing and molding process.

[0005] The technical solution adopted by the present utility model to solve the above problems is: a lower die for magnetic powder pressing and molding, including a bottom plate, a mold cavity is arranged on the bottom plate, a top ejection mechanism is arranged on one side of the mold cavity, the top ejection mechanism includes a top plate, the shape of the top plate matches the shape of the mold cavity, the top plate drive is used to drive the top plate to eject the magnetic powder preform in the mold cavity from the mold cavity. The bottom plate further includes two slide rails, the mold cavity includes a fixed mold cavity fixed on the bottom plate and two sliding mold cavities respectively slidably connected to the two slide rails, the two sliding mold cavities are located on both sides of the fixed mold cavity, elastic members and fasteners are arranged on the sliding mold cavities, one end of the fastener is connected to the fixed mold cavity, and an elastic member is arranged between the other end and the sliding mold cavity. The top ejection mechanism further includes two ejector rods and two ejector rod drives, and the ejector rod drives are used to drive the ejector rods to move towards the sliding mold cavities and separate the sliding mold cavities from the fixed mold cavity along the slide rail direction.

[0006] This desktop recycling component for the magnetic powder pre-pressing device changes the two sides of the mold cavity into spliced and slidable mold cavities. When ejection is required, the sliding mold cavity is driven by the ejection mechanism on one side to separate it from the fixed mold cavity in the middle, so that the clamping force of the products located on both sides of the mold cavity is reduced, and then it is ejected through the pressing plate, thus avoiding the problem that the products located on both sides of the mold cavity are prone to being damaged or broken during the ejection process due to excessive clamping force during the magnetic powder pressing and molding process.

[0007] Preferably, when the fixed mold cavity and the sliding mold cavity are combined, a slot is formed. The ejector rod is cylindrical, and a conical surface is provided at its end. The conical surface of the ejector rod driven by the ejector rod driver abuts against one side surface of the sliding mold cavity, and the conical surface of the ejector rod pushes the sliding mold cavity to separate from the fixed mold cavity.

[0008] Preferably, a T-shaped groove is opened at the lower end of the sliding mold cavity, and a connecting portion with a T-shaped cross-section is provided on the slide rail, and the connecting portion is embedded in the T-shaped groove.

[0009] Preferably, the elastic member is a spring.

[0010] Preferably, the sliding mold cavity has a countersunk hole and a through hole. The lower end of the spring is installed at the bottom of the countersunk hole. One end of the fastener is threadedly connected to one side of the fixed mold cavity, and the other end has a nut. The lower end surface of the nut abuts against the upper end surface of the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a perspective view of the present invention;

[0012] Figure 2 is a perspective view of the ejecting mechanism of the present invention;

[0013] Figure 3 is a front view of the mold cavity of the present invention;

[0014] Illustration: 1. Base plate; 1.1 Slide rail; 1.1.1 Connecting portion; 2. Mold cavity; 2.1 Fixed mold cavity; 2.2 Sliding mold cavity; 2.2.1 Elastic member; 2.2.11 Spring; 2.2.2 Fastener; 2.2.21 Nut; 2.2.3 T-shaped groove; 2.2.4 Countersunk hole; 2.2.5 Through hole; 3. Ejecting mechanism; 3.1 Top plate; 3.2 Top plate driver; 3.3 Ejector rod; 3.4 Ejector rod driver; 4. Slot; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] Before detailing any embodiment of the present invention, it should be understood that the present invention is not limited in its application to the construction and arrangement details of the components set forth in the following description or illustrated in the following drawings. The present invention is capable of other embodiments and of being practiced or carried out in various ways. Additionally, it should be understood that the terminology and phrases used herein are for the purpose of description and should not be regarded as limiting. As used herein, "including" or "having" and their variants are intended to cover the listed items and their equivalents as well as additional items. Unless otherwise specified or limited, the terms "mounted", "connected", "supported", and "coupled" and their variants are used broadly and cover both direct and indirect mounting, connection, support, and coupling. Further, "connected" and "coupled" are not limited to physical or mechanical connection or coupling.

[0016] Moreover, in the disclosure of the present utility model, the orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present utility model. Secondly, the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. The term "a" should not be construed as limiting the quantity.

[0017] Those skilled in the art should understand that the embodiments of the present utility model described above and shown in the drawings are only examples and do not limit the present utility model. The object of the present utility model has been completely and effectively achieved. The functions and structural principles of the present utility model have been demonstrated and explained in the embodiments. Without departing from the said principles, the embodiments of the present utility model can have any deformation or modification.

[0018] The embodiments of the present utility model will be further described below in conjunction with the drawings.

[0019] This desktop recovery component for a magnetic powder pre-pressing device includes the following structures: a structure of a lower die for magnetic powder molding, specifically including that the lower die includes a bottom plate 1, and a die cavity 2 is arranged on the bottom plate 1. The die cavity 2 is a space for forming a magnetic powder molded part.

[0020] Please refer to Figure 2 , and an ejection mechanism 3 is equipped on one side of the die cavity 2 for ejecting the magnetic powder molded part from the die cavity 2. The ejection mechanism 3 includes a top plate 3.1 and a top plate drive 3.2. The shape of the top plate 3.1 matches that of the die cavity 2, and the top plate drive 3.2 is used to drive the action of the top plate 3.1 to eject the magnetic powder molded part.

[0021] The bottom plate 1 further includes two slide rails 1.1, and the function of these slide rails 1.1 is to support and guide the movement of the sliding die cavity 2.2.

[0022] The die cavity 2 is divided into a fixed die cavity 2.1 and a sliding die cavity 2.2. The fixed die cavity 2.1 is fixed on the bottom plate 1, while the sliding die cavity 2.2 is connected to the bottom plate 1 through the slide rails 1.1 and can slide along the slide rails 1.1.

[0023] The ejection mechanism 3 further includes two ejector rods 3.3 and two ejector rod drivers 3.2. When the fixed mold cavity 2.1 and the sliding mold cavity 2.2 are combined, a slot 4 is formed. The ejector rod 3.3 is pushed into the slot 4, and the conical surface of the ejector rod 3.3 abuts against one side of the sliding mold cavity 2.2, thereby pushing the sliding mold cavity 2.2 to separate from the fixed mold cavity 2.1.

[0024] The sliding mold cavity 2.2 has a countersunk hole 2.2.4 and a through hole 2.2.5. The lower end of the spring 2.2.11 is installed at the bottom of the countersunk hole 2.2.4, and the fastener 2.2.2 is connected to the fixed mold cavity 2.1 through the through hole 2.2.5. The other end of the fastener 2.2.2 has a nut 2.2.21, and its lower end surface abuts against the upper end surface of the spring 2.2.11 to fix the position of the sliding mold cavity 2.2.

[0025] Specifically, the ejector rod driver 3.4 drives the ejector rod 3.3 into the slot 4. The conical surface of the ejector rod 3.3 abuts against one side of the sliding mold cavity 2.2, thereby pushing the sliding mold cavity 2.2 to separate from the fixed mold cavity 2.1. Then, the top plate driver 3.2 drives the top plate 3.1 to eject the magnetic powder compacted part.

[0026] The above description is only for the best embodiment of the present invention, but it should not be construed as a limitation to the claims. The present invention is not limited to the above embodiments, and its specific structure allows changes. All changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

Claims

1. A magnetic powder pressing lower die, characterized in that: The invention comprises a bottom plate (1), a mold cavity (2) is arranged on the bottom plate (1), an ejection mechanism (3) is arranged on one side of the mold cavity (2), the ejection mechanism (3) comprises a top plate (3.1) and a top plate drive (3.2), the top plate (3.1) has a shape matching that of the mold cavity (2), the top plate drive (3.2) is used to drive the top plate (3.1) to eject the magnetic powder pressed part in the mold cavity (2) from the mold cavity (2), wherein the bottom plate (1) also comprises two slide rails (1.1), the mold cavity (2) comprises a fixed mold cavity (2.1) fixed on the bottom plate (1) and two sliding mold cavities (2.2) respectively connected to the two slide rails (1.1) in a sliding manner, and the two The sliding mold cavity (2.2) is respectively located on both sides of the fixed mold cavity (2.1); an elastic member (2.2.1) and a fastener (2.2.2) are arranged on the sliding mold cavity (2.2); one end of the fastener (2.2.2) is connected to the fixed mold cavity (2.1); an elastic member (2.2.1) is arranged between the other end and the sliding mold cavity (2.2); the ejection mechanism (3) further comprises two ejector rods (3.3) and two ejector rod drives (3.4); the ejector rod drives (3.4) are used to drive the ejector rods (3.3) to move toward the sliding mold cavity (2.2) and separate the sliding mold cavity (2.2) from the fixed mold cavity (2.1) along the direction of the slide rail (1.1).

2. A magnetic powder pressing lower die according to claim 1, characterized in that: The fixed mold cavity (2.1) and the sliding mold cavity (2.2) form a slot (4) when they are combined; the push rod (3.3) is cylindrical and has a conical surface at its end; the push rod drive (3.4) drives the push rod (3.3) to enter the slot (4) and causes the conical surface of the push rod (3.3) to abut against a side surface of the sliding mold cavity (2.2) to push the sliding mold cavity (2.2) and the fixed mold cavity (2.1) to separate.

3. A magnetic powder pressing lower die according to claim 1, characterized in that: A T-shaped groove (2.2.3) is provided at the lower end of the sliding mold cavity (2.2), and a connecting portion (1.1.1) with a T-shaped cross section is provided on the sliding rail (1.1), and the connecting portion (1.1.1) is embedded in the T-shaped groove (2.2.3).

4. A magnetic powder pressing lower die according to claim 1, characterized in that: The elastic member (2.2.1) is a spring (2.2.11).

5. A magnetic powder pressing lower die according to claim 4, characterized in that: The sliding mold cavity (2.2) has a countersunk hole (2.2.4) and a through hole (2.2.5); the lower end of the spring (2.2.11) is installed at the bottom of the countersunk hole (2.2.4); one end of the fastener (2.2.2) passes through the through hole (2.2.5) and is threadedly connected to one side of the fixed mold cavity (2.1); the other end has a nut (2.2.21); the lower end surface of the nut (2.2.21) abuts against the upper end surface of the spring (2.2.11).

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