Hot pressing die

Abstract

A hot pressing die comprises an upper die plate, an upper die core arranged on the upper die plate, a lower die plate and a lower die core arranged on the lower die plate, four corners of the lower die core are respectively provided with a first insert in an embedded mode, the first inserts are made of glass fiber plate materials, and a clamping frame is arranged on the peripheral edge of the lower die core.

Description

Technical Field

[0001] This utility model relates to the field of mold design, and in particular to a hot pressing mold. Background Technology

[0002] In the hardware manufacturing industry, steel is widely used in the manufacture of hot-pressed hardware mold cores due to its high strength and good mechanical properties. However, in actual production, the problem of corner damage to hardware components is quite prominent. This is mainly due to the interference fit design between the hardware components and the fixture. An interference fit means that the hardware components need to overcome a certain resistance during assembly to tightly engage with the fixture. While this design ensures the stability of the hardware components during processing, the direct contact between the metal materials introduces new problems. Due to the high hardness of metals, hardware components are easily scratched by the fixture during assembly and processing, affecting their appearance quality and performance.

[0003] Furthermore, the four corners of the hardware components are also susceptible to deformation due to pressure during the hot pressing process. This is mainly because insufficient precision and dimensional control of the mold cavity lead to uneven pressure distribution on the hardware components during hot pressing. As areas of concentrated stress, the four corners are more prone to deformation, thus affecting the overall dimensional and shape accuracy of the hardware components. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a hot pressing mold. By embedding fiberglass inserts at the four corners of the lower mold core, the cushioning performance of the fiberglass material effectively reduces scratches and pressure damage to metal products, improves the durability of the mold core, and extends its service life.

[0005] The objective of this utility model is achieved through the following solution:

[0006] A hot press mold includes an upper template, an upper mold core disposed on the upper template, a lower template, and a lower mold core disposed on the lower template. Each of the four corners of the lower mold core is embedded with a first insert, and the first insert is made of fiberglass board material. The four edges of the lower mold core are provided with clamping frames.

[0007] Furthermore, the first insert is fixedly disposed at the four corners of the lower mold core by adhesive bonding.

[0008] Furthermore, the first insert is detachably mounted at the four corners of the lower mold core by fasteners.

[0009] Furthermore, the clamping frame includes four baffles movably disposed on the lower template, the baffles being able to approach or move away from the lower mold core; in the mold-closed state, the baffles abut against the side edge of the lower mold core.

[0010] Furthermore, the baffle is slidably disposed on the lower template, and the baffle is driven by a driving device to reciprocate on the lower template.

[0011] Furthermore, the lower mold core has at least one vent hole through it, and the lower mold plate has a through hole corresponding to the vent hole.

[0012] Furthermore, a second insert is embedded in each of the four sides of the lower mold core, and the second insert abuts against the clamping frame.

[0013] Furthermore, a limiting post is protruded on the upper surface of the lower mold core.

[0014] The advantage of this invention lies in the fact that first inserts made of fiberglass board are embedded at the four corners of the lower mold core. The use of fiberglass board in these first inserts not only effectively reduces scratches and dents on metal products but also reduces the risk of damage to the lower mold core, protecting the surface integrity of the hot press mold. This design not only optimizes the performance of the hot press mold but also significantly extends its service life. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a hot pressing mold according to the present invention.

[0017] Figure 2 for Figure 1 A schematic diagram of a hot press mold without the upper template and upper mold core.

[0018] Figure 3 for Figure 2 A schematic diagram of a hot-pressing mold without the lower mold core. Detailed Implementation

[0019] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. Based on the description of the present invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.

[0020] The terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the invention.

[0021] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0022] Please see Figure 1 , Figure 2 A hot press mold includes an upper template 10, an upper mold core 20 disposed on the upper template 10, a lower template 30, and a lower mold core 40 disposed on the lower template 30. Each of the four corners of the lower mold core 40 is embedded with a first insert 41, and the first insert 41 is made of fiberglass board material, which has excellent heat resistance, high strength and good dimensional stability.

[0023] In this embodiment, the first insert 41 is fixedly disposed at the four corners of the lower mold core 40 by adhesive bonding. Preferably, epoxy resin adhesive is used to firmly bond the first insert 41 to the lower mold core 40 to ensure structural stability and durability. During the bonding process, the surfaces of the first insert 41 and the lower mold core 40 are first pretreated to improve the adhesion and wettability of the bonding surfaces. Then, epoxy resin adhesive is evenly applied to the bonding surface of the first insert 41, and the first insert 41 is then precisely placed at the four corners of the lower mold core 40. By applying appropriate pressure and holding it for a period of time, the epoxy resin adhesive is fully cured, thereby achieving a firm bond between the first insert 41 and the lower mold core 40. Through high-strength bonding technology and surface treatment, the durability of the mold core is improved, and the service life of the hot press mold is extended.

[0024] In another embodiment, the first insert 41 is detachably mounted at the four corners of the lower mold core 40 by fasteners. The first insert 41 is detachably mounted at the four corners of the lower mold core 40 by fasteners such as bolts and nuts. This design allows the first insert 41 to be easily disassembled and replaced when worn or damaged, reducing the maintenance cost of the hot press mold. When the first insert 41 wears or is damaged due to prolonged use or exposure to high pressure and temperature, it is not necessary to disassemble or scrap the entire hot press mold; the damaged first insert 41 can be easily removed simply by loosening the bolts and nuts.

[0025] The lower mold core 40 is equipped with clamping frames 50 around its perimeter. These clamping frames 50 fix and support the lower mold core 40, while also enhancing the overall rigidity of the hot press mold. During hot pressing, the clamping frames 50 prevent the lower mold core 40 from deforming due to stress, thus ensuring the molding accuracy and quality of the product. Furthermore, the clamping frames 50 facilitate mold assembly and disassembly, improving production efficiency. In the closed mold state, the upper mold core 20, lower mold core 40, and clamping frames 50 form the molding cavity.

[0026] Furthermore, the clamping frame 50 includes a baffle 51 movably mounted on the lower template 30, which can move closer to or further away from the lower mold core 40. The baffle 51 is connected to the lower template 30 via a guiding mechanism, such as a slide rail or guide groove, and can move closer to or further away from the lower mold core 40 in a specific direction. In the closed mold state, the baffle 51 abuts against the side edge of the lower mold core 40, serving to fix and support the lower mold core 40, while simultaneously enhancing the overall rigidity of the hot press mold and preventing deformation during hot pressing. The design of the slide rail and guide groove not only allows the baffle 51 to move smoothly along a predetermined trajectory but also reduces friction and wear during movement, thereby extending the service life of the hot press mold. The movable design of the baffle 51 also improves the flexibility of the clamping frame 50. When it is necessary to clean the inside of the hot press mold or replace the lower mold core 40, the baffle 51 can easily move along the guiding mechanism away from the lower mold core 40, providing sufficient operating space for the operator. This not only simplifies the maintenance and replacement process of molds, but also improves production efficiency and reduces production costs.

[0027] Furthermore, the baffle 51 is slidably mounted on the lower template 30, and is driven by a driving device to reciprocate on the lower template 30. The baffle 51 is connected to the lower template 30 via a slide rail or similar guiding mechanism, ensuring that the baffle 51 can reciprocate smoothly on the lower template 30. A driving device is cleverly installed at one or both ends of the baffle 51; preferably, the driving device is a cylinder, responsible for providing power for the sliding of the baffle 51. By controlling the working state of the driving device, the position of the baffle 51 on the lower template 30 can be precisely adjusted, thereby realizing the automated opening and closing and adjustment functions of the clamping frame 50. This automated adjustment improves the operating efficiency of the hot press mold.

[0028] Please see Figure 3 The lower mold core 40 has at least one vent hole 42 through it, and the lower mold plate 30 has a through hole 31 corresponding to the vent hole 42. During the hot pressing process, the mold cavity is connected to the outside through the vent hole 42 and the through hole 31. The gas in the mold cavity enters the through hole 31 of the lower mold plate 30 through the vent hole 42 and is finally discharged outside the hot pressing mold, ensuring that no air bubbles are generated in the mold cavity.

[0029] The lower mold core 40 has a second insert 43 embedded at each of its four sides, and the second insert 43 abuts against the clamping frame 50. This ensures the stability and precision of the hot press mold in the closed state and helps prevent deformation or damage caused by uneven stress during hot pressing. It not only improves the durability and reliability of the hot press mold, but also provides a strong guarantee for high-quality product production.

[0030] The upper surface of the lower mold core 40 is provided with a limiting post 44 to ensure accurate positioning of the upper mold core 20 and the lower mold core 40 during mold closing. The limiting post 44 can ensure accurate positioning of the upper mold core 20 and the lower mold core 40 during high-speed, high-pressure mold closing.

[0031] The hot press mold provided by this utility model has first inserts 41 made of fiberglass board embedded in the four corners of the lower mold core 40. It not only utilizes the high strength and cushioning performance of fiberglass board to effectively reduce scratches and pressure damage to hardware components during the mold closing process, but also significantly improves the overall durability of the mold through its excellent wear resistance.

[0032] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A hot press mold comprising an upper die plate, an upper die core provided on the upper die plate, a lower die plate, and a lower die core provided on the lower die plate, characterized by: Each of the four corners of the lower mold core is fitted with a first insert, and the first insert is made of fiberglass board. The four edges of the lower mold core are provided with a clamping frame.

2. The hot press mold of claim 1, wherein: The first insert is fixedly disposed at the four corners of the lower mold core by adhesive bonding.

3. The hot press mold of claim 1, wherein: The first insert is detachably mounted at the four corners of the lower mold core by fasteners.

4. The hot press mold of claim 1, wherein: The clamping frame includes four baffles that are movably disposed on the lower template. The baffles can be close to or away from the lower mold core. In the mold-closed state, the baffles abut against the side edge of the lower mold core.

5. The hot press mold of claim 4, wherein: The baffle is slidably disposed on the lower template, and the baffle is driven by a driving device to reciprocate on the lower template.

6. The hot press mold of claim 1, wherein: The lower mold core has at least one vent hole, and the lower mold plate has a through hole corresponding to the vent hole.

7. The hot press mold of claim 1, wherein: The lower mold core has a second insert embedded on each of its four sides, and the second insert abuts against the clamping frame.

8. The hot press mold of claim 1, wherein: The upper surface of the lower mold core is provided with a limiting post.

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