Mold exhaust structure assembly with self-cleaning function
By introducing annular grooves and channels into the mold venting structure, and combining them with a control valve to automatically control the cleaning medium, the problems of easy clogging in traditional mold venting structures and low efficiency of manual cleaning are solved, realizing automated cleaning and improving production efficiency and mold life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN DIANZHONG HENGDA TECH CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional mold venting structures are easily clogged by plastic debris and dust, resulting in poor venting. Furthermore, manual cleaning is inefficient, affecting mold lifespan and production efficiency.
Design a mold exhaust structure component with self-cleaning function, including an annular groove and a channel. The channel is connected to an external cleaning air source or liquid source. A control valve is used to automatically control the entry of the cleaning medium into the exhaust hole to achieve automatic cleaning.
It achieves automatic self-cleaning of mold vent holes, improves cleaning efficiency, reduces manual intervention, extends mold life and improves production efficiency.
Smart Images

Figure CN224311095U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of mold technology, specifically to a mold venting structure component with self-cleaning function. Background Technology
[0002] A mold is a tool used to shape articles. It uses specific shapes and structures to shape materials into the desired product shape under certain process conditions. In the injection molding process of foam boxes, the discharge of gas from the mold cavity is crucial.
[0003] Traditional foam box mold venting structures have several shortcomings: Firstly, existing mold vents are easily clogged by plastic debris, dust, and other impurities, leading to poor venting. For example, during injection molding, the flowing molten plastic may carry debris into the vents; dust in the workshop environment will also gradually accumulate at the vents. Secondly, cleaning the vents usually requires manual operation, which is time-consuming and labor-intensive, and frequent mold disassembly can cause component wear, affecting mold lifespan and production efficiency.
[0004] Therefore, it is necessary to provide a mold venting structure component with self-cleaning function to solve the above problems. Utility Model Content
[0005] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a mold venting structure component with self-cleaning function, which achieves the effect of self-cleaning the inside of the mold venting structure, thereby solving the problem of low efficiency of manual cleaning.
[0006] The technical solution adopted by this application to solve its technical problem is: a mold venting structure component with self-cleaning function, including a mold component, the mold component including a main body, the main body having a plurality of venting holes, the main body having an annular groove near the venting holes, the annular groove being able to surround the plurality of venting holes, the venting holes being able to maintain a connected state through the annular groove.
[0007] Furthermore, the interior of the main body is provided with channels that are connected to the exhaust ports, and these channels can serve as external clean air or liquid sources to enter the interior of the main body.
[0008] Furthermore, the main body is provided with a through pipe, which can be fixedly connected to the port of the channel, and the clean air source or liquid source introduced by the through pipe can enter the interior of the channel.
[0009] Furthermore, a control valve is fixedly installed on the through pipe, and the control valve can be connected to an external input structure.
[0010] Furthermore, the conduit is made of corrosion-resistant stainless steel.
[0011] Furthermore, the through pipe is located on the top edge of the mold, and an external adapter structure can be installed on the top edge of the mold, which can cover the through pipe.
[0012] Furthermore, the control valve can automatically open slightly to allow a small amount of clean gas and liquid to continuously flow in, and the control valve can automatically open fully to ensure that sufficient clean gas and liquid enter the channel.
[0013] The beneficial effects of this application are:
[0014] This application provides a mold venting structure component with self-cleaning function. By opening several sets of venting holes, the material can be effectively vented during molding. At the same time, the venting holes can be interconnected through the annular groove, and external gas or liquid can enter the annular groove and venting holes through the channel, so that the internal debris can be cleaned quickly and periodically, thereby improving the cleaning efficiency of the venting holes in the later stage. Attached Figure Description
[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:
[0016] Figure 1 This is an overall schematic diagram of a mold venting structure component with self-cleaning function according to this application;
[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0018] Figure 3 This is a sectional view of the main body;
[0019] Figure 4 for Figure 3 Schematic diagram at point B in the middle;
[0020] The following are the labeling elements in the figure:
[0021] 10. Mold assembly; 11. Main body; 12. Vent hole; 13. Mold top frame; 14. Through pipe; 15. Control valve; 16. Channel; 17. Annular groove. Detailed Implementation
[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0024] like Figures 1-4 As shown, this application provides a mold venting structure component with self-cleaning function, including a mold component 10. The mold component 10 is the basic structure of the entire mold. At the same time, the mold component 10 can be made of high-strength steel, so as to withstand the high pressure and frequent opening and closing actions during the injection molding process, ensuring the reliability and durability of the mold.
[0025] The mold assembly 10 includes a main body 11, on which several sets of vent holes 12 are provided on each surface. The vent holes 12 are responsible for venting air and other gases during the injection molding process, preventing defects such as air holes and material shortages in the foam box due to gas residue, thereby improving product quality.
[0026] The main body 11 is fixedly mounted with a mold top frame 13. The mold top frame 13 can be located at the top edge of the main body 11, playing a key role in sealing and positioning. At the same time, during the injection molding process, it cooperates with other parts of the mold assembly 10 to prevent the plastic melt from overflowing. The mold top frame 13 can also provide structural support for the cleaning system of the vent hole 12, ensuring that the cleaning medium flows within the preset path and avoiding leakage.
[0027] The main body 11 has an annular groove 17 near the exhaust port 12, and the annular groove 17 can surround several sets of exhaust ports 12, so that the several sets of exhaust ports 12 can maintain a series connection. The main body 11 has a channel 16 inside, which can be connected to the exhaust port 12. At the same time, the channel 16 can be used as an external cleaning air source or liquid source to enter the interior of the main body 11. After the cleaning air source or liquid source flows into the annular groove 17 through the channel 16, these cleaning air sources or liquid sources can be quickly and evenly distributed to each exhaust port 12, thereby achieving a simultaneous self-cleaning effect on multiple exhaust ports 12, and thus greatly improving the cleaning efficiency.
[0028] The main body 11 is provided with a through pipe 14, and a control valve 15 is fixedly installed on the through pipe 14. The control valve 15 can be connected to an external input structure, so that an external clean air source or liquid source can enter the inside of the through pipe 14 through the control valve 15. The through pipe 14 can be fixedly connected to the port of the channel 16, so that the clean air source or liquid source introduced by the through pipe 14 can enter the inside of the channel 16 to perform self-cleaning for the exhaust port 12. The control valve 15 can be controlled manually or automatically, so that the timing and flow rate of the clean air source or liquid source can be precisely adjusted.
[0029] When injection molding is completed, the mold assembly 10 opens the mold and removes the product, then enters the automatic cleaning stage. First, the control system (not shown) issues a command to open the control valve 15. At this time, the cleaning gas or liquid will flow rapidly from the channel 16 into the annular groove 17 under pressure. Since the annular groove 17 is interconnected with each vent hole 12, the cleaning gas or liquid will quickly and evenly enter the vent hole 12. The cleaning gas or liquid flows in the vent hole 12, and uses its pressure and flow impact to wash away the plastic debris, dust and other impurities attached to the inner wall of the vent hole 12. These impurities are discharged from the vent hole 12 along with the cleaning gas or liquid, and the cleaning process is finally completed.
[0030] Furthermore, the flow rate and cleaning time of the cleaning gas or liquid can be adjusted through the control valve 15 according to the actual situation to ensure that the exhaust port 12 is clean. After cleaning is completed, the control valve 15 needs to be closed to prepare for the next injection molding production.
[0031] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A mold venting structure assembly with self-cleaning function, comprising a mold assembly (10), characterized in that: The mold assembly (10) includes a main body (11), on which a plurality of vent holes (12) are provided. A ring groove (17) is provided on the main body (11) near the vent holes (12). The ring groove (17) can surround the plurality of vent holes (12), and the vent holes (12) can be kept in series through the ring groove (17).
2. The mold venting structure assembly with self-cleaning function according to claim 1, characterized in that: The main body (11) has a channel (16) inside, which can be connected to the exhaust port (12) respectively. The channel (16) can be used as an external clean air source or liquid source to enter the interior of the main body (11).
3. A mold venting structure assembly with self-cleaning function according to claim 1, characterized in that: The main body (11) is provided with a pipe (14), which can be fixedly connected to the port of the channel (16), and the clean air source or liquid source introduced by the pipe (14) can enter the interior of the channel (16).
4. A mold venting structure assembly with self-cleaning function according to claim 3, characterized in that: A control valve (15) is fixedly installed on the pipe (14), and the control valve (15) can be connected to an external input structure.
5. A mold venting structure assembly with self-cleaning function according to claim 3, characterized in that: The through pipe (14) is made of corrosion-resistant stainless steel.
6. A mold venting structure assembly with self-cleaning function according to claim 3, characterized in that: The through pipe (14) is located on the top edge of the mold (13), and an external adapter structure can be installed on the top edge of the mold (13). The adapter structure of the top edge of the mold (13) can cover the through pipe (14).
7. A mold venting structure assembly with self-cleaning function according to claim 4, characterized in that: The control valve (15) can automatically open slightly to allow a small amount of clean gas and liquid to be continuously introduced. The control valve (15) can automatically open fully to ensure that sufficient clean gas and liquid enter the channel (16).