A plastic mold with excellent air permeability

Abstract

The utility model relates to a plastic mold with excellent air permeability, characterized in that it comprises: a mold body, an air permeable component and an airtight component, the mold body is provided with a mounting body, the mounting body is provided with a plurality of card slots, the card slots are provided with through holes, the air permeable component and the airtight component are arranged in one of the card slots or a plurality of the card slots, the surface of the air permeable component is provided with an air permeable gap, and is penetrated by air holes, and the air holes are connected to the through holes. By effectively discharging the gas inside the mold, the generation of defects such as bubbles and shrinkage cavities can be avoided, and the surface quality and overall performance of the plastic product can be improved. At the same time, by the interchangeable arrangement of the air permeable component and the airtight component in the card slot, the air permeability of the mold can be flexibly adjusted according to different injection molding requirements and product structures to meet diversified production needs.

Description

Technical Field

[0001] The utility model relates to an injection mold, in particular to a plastic mold with excellent air permeability. Background Art

[0002] During the injection molding process of plastic products, if the gas inside the mold cannot be discharged smoothly, it is easy to form defects such as bubbles and shrinkage holes in the product. These defects not only affect the appearance quality of the product, but are also likely to have a serious impact on key performance such as the structural strength, sealing, and service life of the product. This problem is particularly prominent in the manufacturing of high-precision and high-requirement plastic products. Traditional plastic mold design often ignores the importance of gas emission, or only tries to solve this problem through simple exhaust hole design, but the effect is not ideal. Utility Model Content

[0003] In view of the above situation, it is necessary to provide a plastic mold with excellent air permeability that solves at least one of the above problems, characterized in that it includes: a mold body, a breathable component and an airtight component, the mold body is provided with a mounting body, the mounting body is provided with a plurality of groups of slots, the slots are provided with through holes, the breathable component and the airtight component are arranged in one of the slots or multiple slots, the surface of the breathable component is provided with a breathable gap, and is penetrated by air holes, and the air holes are connected to the through holes.

[0004] Preferably, an exhaust pipe is provided inside the mounting body and communicated with the through hole.

[0005] Preferably, the card slot is provided with a boss, and the boss is in contact with the air-permeable component or the air-impermeable component.

[0006] Preferably, the airtight component is made of aluminum alloy.

[0007] Preferably, the breathable component is made of a breathable rigid body.

[0008] Preferably, the air-permeable component and the air-impermeable component are interchangeably disposed in the card slot.

[0009] Preferably, the fitting surface between the boss and the air-permeable component or the air-impermeable component is treated with a sealing material.

[0010] Preferably, the mold body, the air-permeable component and the air-impermeable component are connected by fasteners.

[0011] 1. Improve product quality: By effectively discharging the gas inside the mold, the generation of defects such as bubbles and shrinkage holes can be avoided, and the surface quality and overall performance of plastic products can be improved.

[0012] 2. Improve production efficiency: reduce injection molding failure or product scrapping caused by gas entrapment, reduce production costs and improve production efficiency.

[0013] 3. Strong flexibility: Through the interchangeable setting of the breathable parts and the impermeable parts in the card slot, the breathability of the mold can be flexibly adjusted according to different injection molding requirements and product structures to meet diverse production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 1. Mold body; 2. Breathable component; 21. Breathable gap; 22. Breathable hole; 3. Airtight component; 4. Mounting body; 5. Slot; 6. Through hole; 7. Exhaust pipe; 8. Boss

[0015] Figure 1 It is a structural schematic diagram of a plastic mold with excellent air permeability according to an embodiment of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the installation body of the embodiment of the utility model.

[0017] Figure 3 It is a structural schematic diagram of an embodiment of the utility model in which a breathable component and an airtight component are arranged on a mounting body.

[0018] Figure 4 It is a structural schematic diagram of a drainage pipe according to an embodiment of the utility model.

[0019] Figure 5 It is a schematic structural diagram of the ventilation component of an embodiment of the utility model. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the following is a further detailed description of the plastic mold with excellent air permeability of the utility model in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "center", "longitudinal", "lateral", "up", "down", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood by specific circumstances.

[0023] See also Figures 1 to 5 The plastic mold with excellent air permeability of the embodiment of the utility model is characterized in that it includes: a mold body 1, a breathable component 2 and an airtight component 3, the mold body 1 is provided with a mounting body 4, the mounting body 4 is provided with a plurality of card slots 5, the card slots 5 are provided with through holes 6, the breathable component 2 and the airtight component 3 are arranged in one of the card slots 5 or multiple of the card slots 5, the surface of the breathable component 2 is provided with a breathable gap 21, and is penetrated by a breathable hole 22, and the breathable hole 22 is connected with the through hole 6.

[0024] In the above embodiment, after the mold body 1 is closed, the plastic raw material is injected into the mold. At this time, if it is necessary to exhaust at a specific position, the air-permeable component 2 can be arranged in the corresponding slot 5. The air-permeable gap 21 on the surface of the air-permeable component 2 and the air holes 22 that penetrate through it allow the gas inside the mold to be discharged smoothly through these channels, so as to avoid the gas being trapped inside the product during the injection molding process, causing bubbles or defects. If it is necessary to prevent the discharge of gas at certain positions, for example, in order to form a specific product structure or texture, the air-impermeable component 3 can be arranged in the corresponding slot 5. The air-impermeable component 3 can effectively prevent the gas from passing through these positions, ensuring the smooth progress of the injection molding process. The through hole 6 arranged in the slot 5 is connected to the air hole 22, which helps to further promote the discharge and circulation of the gas. These through holes 6 are connected to the exhaust device outside the mold, and the gas is discharged from the outside of the mold through the exhaust pipe 7.

[0025] Furthermore, the surface of the air-permeable component 2 is provided with air-permeable gaps 21 and air holes 22 that penetrate therethrough. The air-permeable gaps 21 and the air holes 22 together constitute an efficient exhaust system, so that the gas inside the mold can be quickly discharged. The air-permeable gaps 21 allow the gas to circulate inside the mold and guide the gas to find an outlet. These gaps are designed to be small enough to ensure that they do not affect the molding accuracy of the plastic product, while being able to effectively guide the flow of gas. The air holes 22 are the main channels for gas discharge. They penetrate the air-permeable component 2 and are connected to the channels inside the mold, forming a smooth exhaust path. When the gas flows to the vicinity of the air holes 22 through the air-permeable gaps 21, it can be smoothly discharged from the outside of the mold through these channels.

[0026] Please refer to Figures 1 to 5 In another embodiment, an exhaust pipe 7 is provided inside the mounting body 4 and communicated with the through hole 6 .

[0027] In the above embodiment, the exhaust pipe 7 is the main channel for exhausting the gas inside the mold, and is closely connected to the through hole 6 to form a complete exhaust system. During the injection molding process, when the gas inside the mold flows to the through hole 6 through the air permeable gap 21 and the air permeable hole 22 of the air permeable component 2, the gas can quickly enter the exhaust pipe 7 and then be discharged outside the mold.

[0028] Please refer to Figures 1 to 5 In another embodiment, the slot 5 is provided with a boss 8 , and the boss 8 is in contact with the air-permeable component 2 or the air-impermeable component 3 .

[0029] In the above embodiment, the boss 8 makes the air-permeable component 2 or the air-impermeable component 3 more stable and accurate during installation. The fit of the boss 8 with the air-permeable component 2 or the air-impermeable component 3 can prevent the components from being offset or shaking during the installation process, thereby improving the precision and stability of the mold. The boss 8 is arranged at the bottom or side of the slot 5, and its shape and size match the air-permeable component 2 or the air-impermeable component 3. When these components are placed in the slot 5, the boss 8 will fit closely therewith to form a stable supporting structure. Not only does it enhance the connection strength between the components, but it also makes the entire mold structure more compact and firm. In addition, the boss 8 can also play a role in positioning and guiding. During the installation process, the operator can quickly and accurately find the placement position of the component through the boss 8, thereby simplifying the installation steps and improving work efficiency.

[0030] Please refer to Figures 1 to 5 In another embodiment, the airtight component 3 is made of aluminum alloy.

[0031] In the above embodiment, the aluminum alloy has airtightness and corrosion resistance. Improving the airtight component 3 can effectively resist the erosion of these chemical substances, extend the service life of the mold, and improve the airtightness.

[0032] Please refer to Figures 1 to 5 In another embodiment, the breathable component 2 is made of a breathable rigid body.

[0033] In the above embodiment, the internal pore structure of the breathable steel body is interconnected, so that the gas can pass through the porous body inside the material under the action of pressure difference, thereby improving the breathability efficiency of the breathable component 2.

[0034] Please refer to Figures 1 to 5 In another embodiment, the air-permeable component 2 and the air-impermeable component 3 are interchangeably disposed in the card slot 5 .

[0035] In the above embodiment, when it is necessary to improve the air permeability of the mold, the operator can install the air permeable component 2 in the corresponding slot 5. The air permeable gaps 21 and air holes 22 of these air permeable components 2 can effectively discharge the gas inside the mold, avoid the generation of bubbles and defects, and thus improve the quality and molding efficiency of the plastic product. In certain specific injection molding processes, if it is necessary to prevent the discharge of gas at certain positions to form a specific product structure or texture, the operator can easily install the airtight component 3 in the corresponding slot 5. The airtight component 3 can fit tightly on the slot 5, effectively preventing gas from passing through these positions, and ensuring the smooth progress of the injection molding process. This interchangeable design not only simplifies the adjustment process of the mold, but also reduces the cost of using the mold. Because it is not necessary to manufacture different molds for each different injection molding requirement or product structure, it can be achieved by replacing the air permeable component 2 and the airtight component 3. This not only saves the manufacturing cost of the mold, but also shortens the production cycle and improves production efficiency. In addition, this design also makes the maintenance and maintenance of the mold simpler. When the air-permeable component 2 or the air-impermeable component 3 is worn or damaged, it is only necessary to remove it and replace it with a new one, without overhauling or replacing the entire mold.

[0036] Please refer to Figures 1 to 5 In another embodiment, the fitting surface between the boss 8 and the air-permeable component 2 or the air-impermeable component 3 is treated with a sealing material.

[0037] In the above embodiments, the use of sealing materials can ensure that the connection between the bonding surfaces is tighter and gap-free, thereby effectively preventing gas or liquid from leaking from the bonding surfaces during the injection molding process.

[0038] Please refer to Figures 1 to 5In another embodiment, the mold body 1, the air-permeable component 2 and the air-impermeable component 3 are connected by fasteners.

[0039] In the above embodiment, the interchangeability of the air-permeable component 2 and the air-impermeable component 3 can also be achieved through the fastener connection. Since the fastener connection is universal and flexible, the air-permeable component 2 and the air-impermeable component 3 of different specifications or materials can be easily replaced without changing the overall structure of the mold to meet different injection molding requirements.

[0040] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A plastic mold with excellent air permeability, characterized in that: include: A mold body, a breathable component and an airtight component, wherein the mold body is provided with a mounting body, the mounting body is provided with multiple groups of slots, the slots are provided with through holes, the breathable component and the airtight component are arranged in one of the slots or multiple slots, the breathable component has a breathable gap on its surface and is penetrated by air holes, and the air holes are connected to the through holes.

2. The plastic mold with excellent air permeability as claimed in claim 1, characterized in that: An exhaust pipe is arranged inside the installation body and communicated with the through hole.

3. The plastic mold with excellent air permeability as claimed in claim 1, characterized in that: The slot is provided with a boss, and the boss is in contact with the air-permeable component or the air-impermeable component.

4. The plastic mold with excellent air permeability as claimed in claim 1, characterized in that: The airtight component is made of aluminum alloy.

5. The plastic mold with excellent air permeability as claimed in claim 1, characterized in that: The air-permeable component is made of an air-permeable rigid body.

6. The plastic mold with excellent air permeability as claimed in claim 1, characterized in that: The air-permeable component and the air-impermeable component are interchangeably arranged in the card slot.

7. The plastic mold with excellent air permeability as claimed in claim 3, characterized in that: The fitting surface between the boss and the air-permeable component or the air-impermeable component is treated with a sealing material.

8. The plastic mold with excellent air permeability as claimed in claim 1, characterized in that: The mold body, the air-permeable component and the air-impermeable component are connected by fasteners.

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