Die structure for solving air holes and material shortage of thermosetting material die

Abstract

The utility model discloses a die structure for solving air holes and material shortage of a thermosetting material die. The die structure comprises an upper die holder, a lower die holder, an upper die core and a lower die core, wherein the upper die core and the lower die core are arranged on the upper die holder; the injection mold further comprises an ejector pin jacking mechanism, a storage set ejector pin plate driven by the ejector pin jacking mechanism to ascend and descend and a storage ejector pin fixed to the storage set ejector pin plate, the upper mold core and the lower mold core form a cavity storage area, and the lower mold core is provided with a channel communicated with the cavity storage area. The ejector pin jacking mechanism can drive the storage ejector pin to slide in the channel, and when the storage ejector pin is located at the original position, the top of the storage ejector pin forms an ejector pin storage area in the channel; according to the utility model, the ejector pin storage area is designed in the lower mold core, so that the effective compensation for materials in the mold cavity is realized, and the product quality and the production efficiency are obviously improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mould technical field, concretely is a mould structure that solves hot -setting material mould air hole and material deficiency. BACKGROUND

[0002] Thermosetting materials have been widely used in modern industry due to their unique physical and chemical properties, such as high strength, heat resistance, chemical corrosion resistance, etc. During the manufacturing process, these materials undergo a chemical reaction when heated, forming a solid that is insoluble and infusible, making them particularly suitable for manufacturing components that need to withstand high temperature or high pressure environments. In particular, in the field of white goods and electrical switches, thermosetting materials are particularly common, becoming an indispensable key material in the manufacturing of these products.

[0003] However, these excellent properties of thermosetting materials also bring certain production challenges. Due to the complexity of the curing process and the high sensitivity to injection molding processes, problems such as air holes and material deficiency often occur during production. Air holes are usually formed when gas in the material is not timely discharged and trapped inside the product during the curing process, while material deficiency may be caused by insufficient injection pressure, unreasonable mold structure, or poor material flow.

[0004] These problems not only seriously affect the appearance quality and performance of the product, but also often lead to product scrap, thereby increasing production costs. SUMMARY

[0005] To overcome the shortcomings of the prior art, the utility model provides a mould structure for solving air holes and material deficiency in thermosetting material moulds, which solves the problems raised in the background art.

[0006] To achieve the above purpose, the utility model is implemented by the following technical solutions: a mould structure for solving air holes and material deficiency in thermosetting material moulds, comprising an upper die holder, a lower die holder, an upper die core mounted on the upper die holder, a lower die core, a ejector pin lifting mechanism mounted on the lower die holder, a storage group ejector pin plate lifted by the ejector pin lifting mechanism, and a storage ejector pin fixed on the storage group ejector pin plate, the upper die core and the lower die core form a cavity storage area, the lower die core is provided with a passage communicating with the cavity storage area, the ejector pin lifting mechanism can drive the storage ejector pin to slide in the passage, when the storage ejector pin is in the original position, the top of the storage ejector pin forms an ejector pin storage area in the passage.

[0007] As a further preferred technical solution of the utility model; when the storage ejector pin moves upward in the ejector pin lifting mechanism, the material stored in the ejector pin storage area is extruded into the cavity storage area.

[0008] As a further prior art technical scheme of the utility model, the ejector pin lifting mechanism is a hydraulic cylinder or a pneumatic cylinder or an electric push rod.

[0009] As a further prior art technical scheme of the utility model, the storage group ejector pin plate is installed at the driving end of the ejector pin lifting mechanism, and the storage ejector pin is installed at the upper part of the storage group ejector pin plate.

[0010] The utility model provides a kind of mould structure of solving hot solid material mould air hole and material shortage.Compared with prior art has the following beneficial effects:

[0011] The mould structure of solving hot solid material mould air hole and material shortage, by the ejector pin structure designed in lower mould core, the effective compensation of material in mould cavity is realized, and the quality and production efficiency of product are significantly improved.Specifically, storage ejector pin is designed as the position lower than cavity storage area in mould cavity, that is, storage ejector pin top forms ejector pin storage area in channel, and the data of this design is determined according to the size of product and the required storage amount, to ensure that storage ejector pin can accurately and effectively store material.Under the drive of ejector pin lifting mechanism, storage ejector pin moves upwards after equipment injection amount and carries out pressure maintaining, and the material stored in the upper side (ejector pin storage area) of storage ejector pin is accurately extruded into cavity storage area, effectively filling the air hole and filling bad that can exist when injection molding.

[0012] This innovative design not only greatly reduces the product scrap rate caused by air hole and material shortage, reduces production cost, but also significantly improves the appearance quality and overall performance of product. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structure schematic view of the utility model;

[0014] Figure 2 It is the structure schematic view of the utility model Figure 1 Enlarged schematic view of structure of part A.

[0015] In the drawing: 1, upper mould core;2, lower mould core;3, cavity storage area;4, ejector pin storage area;5, storage ejector pin;6, storage group ejector pin plate;7, ejector pin lifting mechanism;8, upper mould base;9, lower mould base. DETAILED DESCRIPTION

[0016] The technical scheme in the embodiments of the utility model will be clearly and completely described in the embodiments of the utility model in conjunction with the drawings, and obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments.Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of the utility model.

[0017] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a mold structure for solving the problems of air holes and material shortages in thermosetting material molds, including an upper mold base 8, a lower mold base 9, an upper mold core 1 and a lower mold core 2 mounted on the upper mold base 8. The upper mold base 8, lower mold base 9, upper mold core 1, and lower mold core 2 are all prior art and will not be described in detail here. In this embodiment, it also includes an ejector pin lifting mechanism 7 mounted on the lower mold base 9, a material storage group ejector plate 6 driven by the ejector pin lifting mechanism 7 for lifting, and a material storage ejector pin 5 fixed on the material storage group ejector plate 6. The upper mold core 1 and the lower mold core 2 form a cavity material storage area 3. The lower mold core 2 has a channel communicating with the cavity material storage area 3. The ejector pin lifting mechanism 7... The ejector pin 5 can be driven to slide within the channel. When the ejector pin 5 is in its original position, the top of the ejector pin 5 forms an ejector pin storage area 4 within the channel. Below the channel, in the lower mold base 9, there is also a hole for the ejector pin to pass through. The so-called original position of the ejector pin 5 is its initial position, in which the top of the ejector pin 5 forms an ejector pin storage area 4 within the channel for storing material. The size of the ejector pin storage area 4 is determined according to the size of the product and the required amount of material. When the ejector pin 5 moves upward through the ejector pin lifting mechanism 7, the material stored in the ejector pin storage area 4 is squeezed into the cavity storage area 3.

[0018] Generally, the ejector pin lifting mechanism 7 is a hydraulic cylinder, a pneumatic cylinder, or an electric push rod; in this embodiment, a hydraulic cylinder is selected.

[0019] The storage group ejector plate 6 is installed on the drive end of the ejector lifting mechanism 7. Taking a hydraulic cylinder as an example, the storage group ejector plate 6 and the piston rod of the hydraulic cylinder are fixedly connected. The storage ejector pin 5 is installed on the upper part of the storage group ejector plate 6 and is fixed by known methods such as screwing or welding.

[0020] When using this mold structure, firstly, after the upper mold base 8 and the lower mold base 9 are closed, the ejector pin lifting mechanism 7 remains stationary, so that the material storage ejector pin is in its original position, and the material storage ejector pin 5 leaves the ejector pin storage area 4 at the top of the channel.

[0021] Then, the injection molding equipment injects thermosetting material into the mold until the cavity storage area 3 and the ejector pin storage area 4 are filled;

[0022] Then, when the injection of the thermosetting material is preserved, the ejector pin lifting mechanism 7, that is, the piston rod of the oil cylinder in the embodiment, is extended, driving the storage group ejector pin plate 6 to move upwards, so that the storage ejector pin 5 moves upwards in the channel until the storage ejector pin 5 reaches the product shape surface of the mold cavity, and the thermosetting material stored in the ejector pin storage area 4 is supplemented into the cavity storage area 3.

[0023] Finally, after the upper die holder 8 and the lower die holder 9 are opened, the position of the storage ejector pin 5 remains unchanged, and then it is withdrawn downward again when the mold is closed for the next production, and the above process is repeated.

Claims

1. A mold structure for solving the problems of porosity and material shortage in thermosetting material molds, comprising an upper mold base (8), a lower mold base (9), an upper mold core (1) and a lower mold core (2) mounted on the upper mold base (8), characterized in that, It also includes an ejector pin lifting mechanism (7) installed on the lower mold base (9), a material storage group ejector plate (6) driven by the ejector pin lifting mechanism (7) to lift and lower, and a material storage ejector pin (5) fixed on the material storage group ejector plate (6). The upper mold core (1) and the lower mold core (2) form a cavity storage area (3). The lower mold core (2) is provided with a channel communicating with the cavity storage area (3). The ejector pin lifting mechanism (7) can drive the material storage ejector pin (5) to slide in the channel. When the material storage ejector pin (5) is in the original position, the top of the material storage ejector pin (5) forms an ejector pin storage area (4) in the channel.

2. The mold structure according to claim 1, characterized in that, When the material storage pin (5) moves upward in the pin lifting mechanism (7), the material stored in the pin storage area (4) is squeezed into the cavity storage area (3).

3. The mold structure according to claim 1, characterized in that, The ejector pin lifting mechanism (7) is a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

4. The mold structure according to claim 3, characterized in that, The storage group ejector plate (6) is installed on the drive end of the ejector lifting mechanism (7), and the storage ejector pin (5) is installed on the upper part of the storage group ejector plate (6).

Images