Easy-to-demould hot-press forming mould

Abstract

The utility model discloses a hot-press forming mold easy to demold, and belongs to the technical field of hot-press forming devices. A hot press forming mold easy to demold comprises a material pressing mold body; the upper pressing block is connected into the material pressing die body in a sliding manner; the lower pressing block is connected in the pressing die body in a sliding manner; the upper pressing block is positioned right above the lower pressing block; the upper pressing block and the lower pressing block are conical blocks; according to the utility model, the conical upper pressing block and the conical lower pressing block are in sliding fit with the material pressing hole in the material pressing die body, so that the ejection of raw materials can be reduced in the material pressing process; meanwhile, the upper pressing block and the lower pressing block are arranged to be conical blocks, so that the contact area between the upper pressing block and the material pressing mold body and the contact area between the lower pressing block and the material pressing mold body are effectively reduced, the possibility that the two sets of pressing blocks adhere to the material pressing holes due to overflowing of resin is reduced, and subsequent demolding operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of hot pressing forming molds, in particular to a hot pressing forming mold that is easy to demould. Background Art

[0002] Hot pressing is a simple and common preparation method in the field of material processing. It mainly fixes the mold on a heating plate, injects the sample, uses heating and pressurizing the mold, controls the curing temperature and time of the sample, and then takes out the finished model after cooling.

[0003] However, the hot pressing molds in the prior art still have certain deficiencies in the processing process. During the hot pressing process of the powder and resin mixture, as the temperature rises, a small amount of resin may overflow from the material cavity. After the overflowed resin solidifies, it may stick the pressing block to the pressing mold body, which may cause difficulty in demolding. Utility Model Content

[0004] The utility model aims to solve the problems raised in the above background technology and provides a hot pressing forming mold which is easy to demould.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A hot pressing forming mold that is easy to demould, comprising:

[0007] Pressing mold;

[0008] The upper pressing block is slidably connected in the pressing die body;

[0009] A lower pressing block is slidably connected in the pressing die body;

[0010] The upper pressing block is located directly above the lower pressing block;

[0011] The upper pressing block and the lower pressing block shown are both conical blocks.

[0012] Preferably, a pressing hole is provided in the pressing die body, and the upper pressing block and the lower pressing block are both slidably connected in the pressing hole.

[0013] Preferably, a lower pressing plate is connected to the bottom of the pressing die, and an upper pressing plate is connected to the top of the pressing die.

[0014] Furthermore, a pressure block is connected to the upper pressure block, and the upper pressure plate and the top wall of the pressure block are against each other.

[0015] Preferably, a screw hole is provided on the pressing die body, and a demoulding pin is connected to the screw hole.

[0016] Furthermore, the pressing hole is a cylindrical through hole.

[0017] Furthermore, the bottom diameter of the upper pressing block and the top diameter of the lower pressing block are both smaller than the diameter of the pressing hole.

[0018] Compared with the prior art, the utility model provides a hot pressing forming mold that is easy to demould, and has the following beneficial effects:

[0019] The parts not involved in the device are the same as the prior art or can be implemented by the prior art. The utility model forms a slip fit with the pressing hole in the pressing die through the conical upper pressing block and the conical lower pressing block provided in the utility model, so that the raw material spraying out can be reduced during the pressing process; at the same time, by setting the upper pressing block and the lower pressing block as conical blocks, the contact area between the upper pressing block, the lower pressing block and the pressing die is effectively reduced, and the possibility of the two groups of pressing blocks sticking to the pressing hole due to resin overflow is reduced, which is more convenient for subsequent demolding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a hot pressing forming mold that is easy to demould proposed by the utility model;

[0021] Figure 2 The utility model discloses an exploded view of a hot pressing forming mold which is easy to demould.

[0022] In the figure: 1, upper pressure plate; 2, pressure block; 3, upper pressure block; 4, pressing die; 401, screw hole; 402, pressing hole; 5, lower pressure block; 6, lower pressure plate; 7, demoulding pin. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Embodiment 1:

[0025] Reference Figure 1-Figure 2 , a hot pressing forming mold that is easy to demould, comprising:

[0026] Pressing die 4;

[0027] The upper pressing block 3 is slidably connected in the pressing die body 4;

[0028] The lower pressing block 5 is slidably connected in the pressing die body 4;

[0029] The upper pressing block 3 is located directly above the lower pressing block 5;

[0030] The upper pressing block 3 and the lower pressing block 5 shown are both conical blocks.

[0031] A pressing hole 402 is provided in the pressing die body 4 , and the upper pressing block 3 and the lower pressing block 5 are both slidably connected in the pressing hole 402 .

[0032] The bottom of the pressing die body 4 is connected to a lower pressing plate 6 , and the top of the pressing die body 4 is connected to an upper pressing plate 1 .

[0033] The upper pressing block 3 is connected to the pressure block 2, and the upper pressing plate 1 and the top wall of the pressure block 2 are against each other.

[0034] The pressing die body 4 is provided with a screw hole 401 , and a demoulding pin 7 is connected to the screw hole 401 .

[0035] The pressing hole 402 is a cylindrical through hole.

[0036] The bottom diameter of the upper pressing block 3 and the top diameter of the lower pressing block 5 are both smaller than the diameter of the pressing hole 402 .

[0037] It should be noted that the upper pressing block 3 , the lower pressing block 5 and the pressing hole 402 are in a sliding fit.

[0038] During use, the lower pressing plate 6 is placed on the operating platform, the pressing die body 4 is placed in the middle of the lower pressing plate 6, the lower pressing block 5 is placed in the pressing hole 402 in the pressing die body 4, and the lower pressing block 5 is slid to the bottom of the pressing die body 4;

[0039] Pour the raw material to be pressed into the pressing die 4 and compact it with an angle spoon to reduce the raw material powder from being ejected with the gas during the pressing process. Put the upper pressing block 3 into the pressing hole 402 in the pressing die 4.

[0040] Move the assembled structure onto the platform of the hot press, put the pressure block 2 into the pressing mold 4, place the pressure block 2 directly above the upper pressing block 3, place the upper pressing plate 1 on the top of the pressure block 2, and place the pressure block 2 in the middle of the upper pressing plate 1. Start the hot press and pressurize to 2.5Mpa, and heat to 175℃ at the same time. After reaching the temperature, keep the temperature and pressure for 1 hour, release the pressure, and cool naturally to room temperature to complete the hot pressing process.

[0041] After the raw materials are successfully hot-pressed, the hot-pressed structure is removed from the hot press platform, the lower pressing plate 6 is removed, the four demoulding pins 7 are respectively installed in the four equally spaced screw holes 401 of the pressing mold body 4, and the structure is moved to the hot press platform. The hot press is started to remove the lower pressing block 5, the raw material block and the upper pressing block 3 from the mold. After demoulding, the lower pressing block 5 and the upper pressing block 3 are separated from the raw material block to obtain the hot-pressed raw material block.

[0042] By forming a slip fit between the conical upper pressing block 3 and the conical lower pressing block 5 and the pressing hole 402 in the pressing die 4 in the utility model, the raw material spraying can be reduced during the pressing process; at the same time, by setting the upper pressing block 3 and the lower pressing block 5 as conical blocks, the contact area between the upper pressing block 3, the lower pressing block 5 and the pressing die 4 is effectively reduced, and the possibility of the two groups of pressing blocks sticking to the pressing hole 402 due to resin overflow is reduced, which is more convenient for subsequent demolding operations.

[0043] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hot pressing mold that is easy to demould, characterized in that: include: Pressing die body (4); An upper pressing block (3) is slidably connected in a pressing die body (4); A lower pressing block (5) is slidably connected in the pressing die body (4); The upper pressing block (3) is located directly above the lower pressing block (5); The upper pressing block (3) and the lower pressing block (5) shown are both conical blocks.

2. The easy-to-release hot pressing mold according to claim 1, characterized in that: A pressing hole (402) is provided in the pressing die body (4), and the upper pressing block (3) and the lower pressing block (5) are both slidably connected in the pressing hole (402).

3. The easy-to-release hot pressing mold according to claim 1, characterized in that: The bottom of the pressing die (4) is connected to a lower pressing plate (6), and the top of the pressing die (4) is connected to an upper pressing plate (1).

4. The easy-to-release hot pressing mold according to claim 3, characterized in that: The upper pressing block (3) is connected to a pressure block (2), and the upper pressing plate (1) and the top wall of the pressure block (2) are in contact with each other.

5. The easy-to-release hot pressing mold according to claim 1, characterized in that: The pressing die body (4) is provided with a screw hole (401), and a demoulding pin (7) is connected to the screw hole (401).

6. The easy-to-release hot pressing mold according to claim 2, characterized in that: The pressing hole (402) is a cylindrical through hole.

7. The easy-to-release hot pressing mold according to claim 6, characterized in that: The bottom diameter of the upper pressing block (3) and the top diameter of the lower pressing block (5) are both smaller than the diameter of the pressing hole (402).

Images