Die exhaust structure
By setting mounting slots and threaded connections on the mold for the venting components, the problem of long cleaning time for mold venting grooves is solved, and the venting components can be quickly replaced, thus improving mold processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIUZHOU HUAQIAO FASTENING PART CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-17
AI Technical Summary
Existing mold venting channels are prone to leaving debris during use, resulting in long cleaning times and affecting processing efficiency.
Mounting slots are provided on the lower and upper molds, and exhaust components are installed in them. The exhaust components can be quickly installed and removed through threaded connections and plug-in structures, making them easy to replace.
It enables quick replacement of venting components, avoids the time spent cleaning debris from the venting channels, and improves mold processing efficiency.
Smart Images

Figure CN224130358U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, specifically to a mold venting structure. Background Technology
[0002] Injection molding is an important molding and manufacturing method for polymer products. It involves injecting heated and molten polymer material into a mold, which then cools and is demolded to obtain the desired product. When the mold closes, a certain amount of gas is trapped within the mold cavity. Furthermore, various gases are generated during the melting process of the polymer material. The common method to solve the problem of trapped gas in the mold is to directly carve venting channels into the mold, extending from the cavity to the outside of the mold.
[0003] However, debris easily accumulates in the venting channels during use, requiring cleaning to maintain venting effectiveness. This cleaning process takes up processing time, reducing efficiency. To address this issue, we propose a mold venting structure. Utility Model Content
[0004] The purpose of this invention is to provide a mold venting structure to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a mold venting structure, comprising:
[0006] The lower mold has an upper mold at its top. Both the lower and upper molds have cavities on their mating sidewalls. Each mating sidewall has two mounting grooves containing venting components. Each venting component has a venting groove. Both the lower and upper molds have grooves on their front and rear sidewalls. Each groove has two threaded holes on its inner wall. A locking block is welded to the bottom outer wall of the venting component. Two fastening bolts are threaded onto the locking block and threaded into the threaded holes of the groove.
[0007] Preferably, a plurality of plug-in posts are fixedly welded to the outer wall of the exhaust component, and a plurality of plug-in slots are provided on the bottom wall of the mounting groove, with the plurality of plug-in posts being movably inserted into the plurality of plug-in slots respectively.
[0008] Preferably, a knob is fixedly installed on the outer end of the fastening bolt.
[0009] Preferably, the exhaust component is made of a high-temperature resistant metal material.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] 1. This utility model provides an exhaust system by opening mounting grooves on both the lower and upper molds and installing exhaust components in the mounting grooves. The two exhaust components can form an exhaust channel after being fitted together, allowing the mold to exhaust through the exhaust grooves on the exhaust components during production. When there are a lot of debris left on the exhaust grooves of the exhaust components that are not easy to clean quickly, the exhaust components can be removed directly and a new exhaust component can be installed, so that the mold can be reused. This avoids the problem of spending a long time cleaning the debris in the exhaust grooves of the mold, which affects the production efficiency of mold processing.
[0012] 2. The exhaust component of this utility model is connected to the mold by a locking block and a fastening bolt, which facilitates quick assembly and disassembly of the exhaust component and makes it easy to replace the exhaust component quickly, thus improving the convenience of replacing the exhaust component. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of a mold venting structure proposed in this utility model;
[0014] Figure 2 This is a three-dimensional structural diagram of the venting component in a mold venting structure proposed in this utility model;
[0015] Figure 3 This is a bottom-view perspective view of the exhaust component in a mold exhaust structure proposed in this utility model.
[0016] Figure 4 This is a three-dimensional structural diagram of the lower mold in a mold venting structure proposed in this utility model.
[0017] In the diagram: 1. Lower mold; 2. Upper mold; 3. Cavity; 4. Mounting groove; 5. Venting component; 6. Venting groove; 7. Groove; 8. Threaded hole; 9. Locking block; 10. Fastening bolt; 11. Insertion post; 12. Insertion groove; 13. Knob. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 1-4 This utility model provides a technical solution: a mold venting structure, comprising:
[0020] The lower mold 1 has an upper mold 2 at its top. Cavities 3 are formed on the side walls of the lower mold 1 and the upper mold 2 that are in contact with each other. Two mounting grooves 4 are formed on the side walls of the lower mold 1 and the upper mold 2 that are in contact with each other. An exhaust component 5 is provided in the mounting groove 4. An exhaust groove 6 is formed on the exhaust component 5. Grooves 7 are formed on the front and rear side walls of the lower mold 1 and the upper mold 2. Two threaded holes 8 are formed on the inner wall of the groove 7. A locking block 9 is fixedly welded to the bottom wall of the outer end of the exhaust component 5. Two fastening bolts 10 are threadedly connected to the locking block 9. The fastening bolts 10 are threadedly connected to the threaded holes 8 in the groove 7.
[0021] Multiple insertion posts 11 are fixedly welded to the outer wall of the exhaust component 5, and multiple insertion slots 12 are provided on the bottom wall of the mounting groove 4. The multiple insertion posts 11 are respectively movably inserted into the multiple insertion slots 12. Through the insertion and cooperation between the insertion posts 11 and the insertion slots 12, the exhaust component 5 can be limited and fixed in the mounting groove 4 when it is installed.
[0022] A knob 13 is fixedly installed on the outer end of the fastening bolt 10. The knob 13 can easily turn the fastening bolt 10, making it convenient to disassemble and assemble the fastening bolt 10.
[0023] The exhaust component 5 is made of high-temperature resistant metal material to prevent deformation of the exhaust component 5 due to high temperature.
[0024] Working principle: This utility model has mounting grooves 4 on both the lower mold 1 and the upper mold 2, and venting components 5 are installed in the mounting grooves 4. The two venting components 5 can form a venting channel after they are attached, so that the mold can vent through the venting grooves 6 on the venting components 5 during production. When there are a lot of debris left on the venting grooves 6 of the venting components 5 and it is not convenient to clean them quickly, the venting components 5 can be removed directly and a new venting component 5 can be installed, so that the mold can be reused. This avoids the problem of taking a long time to clean the debris in the venting grooves of the mold, which affects the production efficiency of mold processing. The venting components 5 are connected to the mold by locking blocks 9 and fastening bolts 10, which facilitates quick disassembly and assembly of the venting components 5, thereby facilitating the quick replacement of the venting components 5 and improving the convenience of replacing the venting components 5.
[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A mold exhaust structure characterized by, include: The lower mold (1) is provided with an upper mold (2) at its top. A cavity (3) is provided on the side wall where the lower mold (1) and the upper mold (2) fit together. Two mounting grooves (4) are provided on the side wall where the lower mold (1) and the upper mold (2) fit together. An exhaust component (5) is provided in the mounting groove (4). An exhaust groove (6) is provided on the exhaust component (5). A groove (7) is provided on the front and rear side walls of the lower mold (1) and the upper mold (2). Two threaded holes (8) are provided on the inner wall of the groove (7). A locking block (9) is fixedly welded to the bottom wall of the outer end of the exhaust component (5). Two fastening bolts (10) are threadedly connected to the locking block (9). The fastening bolts (10) are threadedly connected to the threaded holes (8) of the groove (7).
2. The mold venting structure of claim 1, wherein: Multiple plug-in posts (11) are fixedly welded to the outer wall of the exhaust component (5), and multiple plug-in slots (12) are opened on the bottom wall of the mounting groove (4). The multiple plug-in posts (11) are respectively movably inserted into the multiple plug-in slots (12).
3. The mold venting structure of claim 1, wherein: A knob (13) is fixedly installed on the outer end of the fastening bolt (10).
4. The mold venting structure of claim 1, wherein: The exhaust component (5) is made of high-temperature resistant metal material.