Rapid forming die for solid boron nitride

Abstract

The utility model discloses a solid boron nitride rapid forming die, which comprises a forming piece and a piston, a cavity for containing rice commercial state boron oxide is arranged in the forming piece, an upper cover plate and a lower cover plate for sealing the cavity are respectively arranged at the top and the bottom of the forming piece, and a piston rod is arranged at the central position of the upper cover plate in a sliding and penetrating manner. The lower end of the piston rod penetrates into the cavity and is fixedly provided with a piston, the piston is horizontally and transversely arranged in the cavity, the side wall of the piston is in sliding sealing connection with the inner wall of the cavity, and the piston and the upper cover plate are provided with an exhaust mechanism for exhausting gas; compression molding is simple and practical, operation is easy, mechanical operation can replace manual operation or direct manual operation can be achieved by matching with a proper tool, production cost is reduced, and equipment investment is reduced; the demolding is simple and feasible; and the solid boron nitride finished product is compact and has no hollow and crack defects.

Description

Technical Field

[0001] The utility model relates to the technical field of solid boron nitride die pressing in the aluminum industry, in particular to a solid boron nitride rapid forming die. Background Art

[0002] Solid boron nitride is specially used for lubrication and demolding of aluminum hot extrusion process. The solid boron nitride fused with paraffin has a white appearance, good stability, and good demolding and lubrication properties. It is generally prepared by buying a matching handheld applicator or making a simple handheld fixture according to the actual situation on site. However, for some production sites, this efficiency is low, and it is not economical to invest in equipment and processing equipment.

[0003] Therefore, in order to solve the above problems, we need a simplified device that can quickly prepare solid boron oxide on site manually.

[0004] Based on this, the utility model designs a solid boron nitride rapid forming die to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a solid boron nitride rapid forming die to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A solid boron nitride rapid forming mold comprises a forming part and a piston, wherein a cavity for containing boron oxide in a rice state is arranged inside the forming part, an upper cover plate and a lower cover plate for sealing the cavity are respectively installed on the top and bottom of the forming part, a piston rod is slidably penetrated through the center of the upper cover plate, the lower end of the piston rod penetrates into the cavity and is fixed with a piston, the piston is horizontally placed in the cavity, the side wall of the piston is slidably sealed with the inner wall of the cavity, and an exhaust mechanism for gas exhaust is arranged on the piston and the upper cover plate.

[0008] Preferably, a handle is installed above the piston rod through a horizontally arranged connecting plate.

[0009] Preferably, the exhaust mechanism includes a plurality of upper cover air leakage holes opened on the top surface of the upper cover plate and a plurality of piston exhaust ports opened on the surface of the piston.

[0010] Preferably, the bottom opening of the piston exhaust port is flat, and the top opening of the piston exhaust port is funnel-shaped.

[0011] Preferably, the top opening of the piston exhaust port is provided with a one-way air valve, and the one-way air valve is unidirectionally conducted toward the air leakage hole of the upper cover.

[0012] Preferably, the upper cover plate is installed on the top of the molded part in a sealed plug-in manner.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. High production efficiency: It can achieve the effect of rapid production, and its production efficiency is more than 3 times that of the existing normal pressure forming technology. If continuous production is adopted, it can achieve 5 to 10 times higher production efficiency;

[0015] 2. Good surface quality: Through compression molding technology, the surface of solid boron nitride is smoother and more oily, making it easier to play a good lubricating role;

[0016] 3. Good density: Through compression molding, the solid boron nitride structure is more compact, and through the exhaust device, the exhaust is exhausted, so the solid boron nitride has no looseness and pores, and its density is better and has higher efficiency;

[0017] 4. More environmentally friendly and more convenient to operate: Through compression molding, the molding temperature can be controlled more accurately, reducing or lowering the volatilization of the effective ingredients of paraffin, making the operating environment more friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the utility model from the front side perspective;

[0020] Figure 2 for Figure 1 Axial cross-sectional view of

[0021] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] Forming part 1, upper cover plate 2, lower cover plate 3, piston 4, piston rod 5, connecting plate 6, handle 7, upper cover air vent hole 8, piston exhaust port 9. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] See also Figure 1-3 , the utility model provides a technical solution:

[0027] A solid boron nitride rapid forming mold, comprising a forming part 1 and a piston 4, wherein a cavity for containing boron oxide in a rice state is arranged inside the forming part 1, an upper cover plate 2 and a lower cover plate 3 for sealing the cavity are respectively installed on the top and bottom of the forming part 1, a piston rod 5 is slidably penetrated through the center of the upper cover plate 2, the lower end of the piston rod 5 penetrates into the cavity and is fixed with a piston 4, the piston 4 is horizontally placed in the cavity, the side wall of the piston 4 is slidably sealed with the inner wall of the cavity, and an exhaust mechanism for gas exhaust is arranged on the piston 4 and the upper cover plate 2;

[0028] During operation, first install the lower cover plate 3 on the bottom of the molded part 1, seal the bottom of the cavity first, open the upper cover plate 2 on the molded part 1, and pour the liquid boron nitride fused with paraffin into the cavity of the molded part 1 to 90% liquid level, cover the upper cover plate 2 and lock it, and then push the piston 4 through the handle 7 and the piston rod 5 to mold the boron nitride, maintain the pressure for 1 minute, remove the lower cover plate 3, push the piston 4 to demould until the solid boron nitride is completely separated from the molded part 1, then retract the piston 4 and tighten the lower cover plate 3. During the downward pressing process, the gas is discharged by the exhaust mechanism on the piston 4 and the upper cover plate 2, and will not fill the pressing cavity space, which greatly reduces the porosity problem of solid boron oxide, and the overall operation is simple and convenient.

[0029] Wherein, a handle 7 is installed above the piston rod 5 through a horizontally arranged connecting plate 6;

[0030] During operation, when manual operation is adopted, manual pressing can be performed through the handle 7. When it is necessary to cooperate with machine production, for example, multiple straight-row installations arranged side by side, with an external pressing device on the top, the handle 7 can be directly removed at this time, so that the connecting plate 6 can be used as the force-bearing surface for cooperation in production, which is more convenient to adapt to various production environments.

[0031] Example 2

[0032] The difference between this embodiment and embodiment 1 is that:

[0033] The exhaust mechanism includes a plurality of upper cover air leakage holes 8 opened on the top surface of the upper cover plate 2 and a plurality of piston exhaust ports 9 opened on the surface of the piston 4;

[0034] Furthermore, the bottom opening of the piston exhaust port 9 is flat, and the top opening of the piston exhaust port 9 is funnel-shaped;

[0035] Furthermore, the top opening of the piston exhaust port 9 is provided with a one-way air valve, which is unidirectionally conducted toward the upper cover air leakage hole 8;

[0036] During operation, when the piston 4 is pressed down, the gas generated by cooling will pass through the piston exhaust port 9 on the piston 4 and be discharged from the upper cover vent hole 8 on the upper cover plate 2. The piston exhaust port 9 on the piston 4 is processed with a special shape. In order to prevent the top of the solid boron oxide molding from being too uneven, the bottom of the piston exhaust port 9 here adopts a flattened design. This design can also increase the contact area of ​​gas overflow and facilitate gas extraction. The top opening of the piston exhaust port 9 is set to a funnel shape, which allows the gas to quickly and evenly diffuse to the top space of the piston 4 without generating an impact airflow with a large peak, reducing the reverse impact force of the airflow impact on the piston, and preventing the piston from generating non-horizontal panting, affecting the overall die pressing action. Secondly, a one-way air valve is designed to prevent the air pressure in the die pressing area from decreasing, and the airflow flows back from the piston exhaust port 9 to the bottom space of the piston 4, causing the problem of air holes on the top of the solid boron oxide.

[0037] Example 3

[0038] The difference between this embodiment and embodiment 1 is that:

[0039] Wherein, the upper cover plate 2 is installed on the top of the molded part 1 in a sealed plug-in manner;

[0040] During operation, both the upper cover plate 2 and the lower cover plate 3 need to be disassembled and assembled. The lower cover plate 3 can be installed using a traditional screw seal to ensure the support sealing of the bottom, while the upper cover plate 2 mainly plays a guiding and sealing role, and the upper cover plate 2 and the piston 4 are connected as a whole. In order to improve the convenience of disassembly, a plug-in seal can be used for quick disassembly and assembly to improve production efficiency.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A solid boron nitride rapid molding die, comprising a molding part (1) and a piston (4), wherein a cavity for containing boron oxide in a rice state is arranged inside the molding part (1), characterized in that: An upper cover plate (2) and a lower cover plate (3) for sealing the cavity are respectively installed at the top and bottom of the molded part (1); a piston rod (5) is slidably inserted through the center of the upper cover plate (2); the lower end of the piston rod (5) penetrates into the cavity and is fixed with a piston (4); the piston (4) is horizontally placed in the cavity; the side wall of the piston (4) is slidably sealed with the inner wall of the cavity; and an exhaust mechanism for exhausting gas is provided on the piston (4) and the upper cover plate (2).

2. A solid boron nitride rapid forming mold according to claim 1, characterized in that: A handle (7) is installed above the piston rod (5) via a horizontally arranged connecting plate (6).

3. A solid boron nitride rapid forming die according to claim 1, characterized in that: The exhaust mechanism comprises a plurality of upper cover air leakage holes (8) provided on the top surface of the upper cover plate (2) and a plurality of piston exhaust ports (9) provided on the surface of the piston (4).

4. A solid boron nitride rapid forming die according to claim 3, characterized in that: The bottom opening of the piston exhaust port (9) is flat, and the top opening of the piston exhaust port (9) is funnel-shaped.

5. A solid boron nitride rapid forming die according to claim 3, characterized in that: The top opening of the piston exhaust port (9) is provided with a one-way air valve, and the one-way air valve is unidirectionally conducted toward the upper cover air leakage hole (8).

6. A solid boron nitride rapid forming die according to claim 1, characterized in that: The upper cover plate (2) is installed on the top of the molded part (1) in a sealed plug-in manner.

Images