Injection mold with exhaust function
By setting a hollow shell and a moving rod structure in the exhaust pipe of the injection mold, the exhaust pipe is sealed with the buoyancy of the raw material liquid, and the spring-driven limit seat and tie rod structure are used to simplify the mold release, which solves the problem of entering the raw material liquid in the exhaust pipe The problem of mold release improves the convenience of mold release.
Patent Information
- Application Number
- CN202421025983.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2024-12-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the exhaust process of existing injection molds, raw materials are prone to flow into the exhaust pipe, resulting in inconvenient demolding.
An injection mold with exhaust function is designed, including a mold cover, exhaust pipe, and auxiliary mold release mechanism. By setting a hollow shell and a moving rod structure in the exhaust pipe, the hollow shell is used to push the buoyancy of the raw material liquid to block the exhaust gas. The pipe is also used to achieve limiting and demolding of the exhaust pipe through a spring-driven limiting seat and tie rod structure.
It effectively avoids the entry of raw material liquid inside the exhaust pipe, simplifies the mold release process, and makes the mold easier to disassemble and use.
Smart Images
Figure CN222245926U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold with an exhaust function. Background Art
[0002] According to the patent authorization announcement number: CN211917604U, an injection mold with an exhaust function is proposed. The utility model provides an injection mold with an exhaust function, by embedding and fixing at least one exhaust block on the first cavity plate against the first plane of the injection molded product, so that the exhaust block can directly contact the injection cavity, and the useless gas generated in the injection molding process is discharged through the cavity air duct of the first cavity plate and the mold frame air duct of the first mold frame plate that are communicated with the exhaust block. The exhaust block can be set at a specific position of the first cavity plate, which solves the problem of affecting the injection molding effect when air is trapped locally or at a specific position due to the various shapes of the injection molded products, improves the aesthetics of the injection molded products, and ensures the injection molding quality.
[0003] However, in the prior art injection mold exhaust structure, during the exhaust process, when the exhaust is completed, the injection molding material easily flows into the interior of the exhaust pipe, causing inconvenience in demoulding. Therefore, it is necessary to improve the prior art. Utility Model Content
[0004] The utility model aims to provide an injection mold with an exhaust function, which solves the problem that raw materials easily enter the exhaust pipe and affect demoulding.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold with an exhaust function, comprising a mold cover, an exhaust pipe is slidably connected to the inside of the mold cover, an auxiliary demolding mechanism is arranged on the mold cover, a fixing bar is fixedly connected to the middle part of the inner wall of the exhaust pipe, a moving rod is slidably connected to the inside of the fixing bar, a fixing plate is fixedly connected to the lower end of the moving rod, a hollow shell is fixedly connected to the lower end of the fixing plate, and a spring is arranged on the outer side of the moving rod.
[0006] Preferably, one end of the spring one is fixedly connected to the fixing bar, and the other end of the spring one is fixedly connected to the fixing plate. The spring one can support the fixing plate through elastic force, and the elastic force value of the spring one is smaller than the buoyancy of the hollow shell.
[0007] Preferably, the hollow shell is made of aluminum alloy material, and the shape of the hollow shell is truncated cone. The density of the aluminum alloy material is relatively low, and the hollow shell can be driven to move by the buoyancy of the molten raw material.
[0008] Preferably, the auxiliary demoulding mechanism includes a fixed frame, the upper end of the mold cover and the left and right sides of the exhaust pipe are fixedly connected with a fixed frame, the interior of the fixed frame is slidably connected with a pull rod, the end of the pull rod close to the exhaust pipe is fixedly connected to a limiting seat, the outer side of the exhaust pipe is fixedly connected to the limiting frame, a spring 2 is arranged on the outer side of the pull rod, the limiting seat is slidably connected to the limiting frame, and the limiting seat can limit the exhaust pipe through the limiting frame.
[0009] Preferably, one end of the pull rod away from the exhaust pipe is fixedly connected with a pull ring, the pull ring is in contact with the fixing frame, and the pull ring can drive the pull rod to move.
[0010] Preferably, one end of the second spring is fixedly connected to the fixing frame, and the other end of the second spring is fixedly connected to the limiting seat, and the second spring can drive the limiting seat to automatically reset through elastic force.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0012] 1. The utility model adds a hollow shell, a moving rod, a fixed plate and other structures inside the exhaust pipe. During use, the airflow can be discharged through the exhaust pipe. When the liquid level of the raw material liquid contacts the hollow shell, the hollow shell can be pushed to move upward and the exhaust pipe can be blocked, thereby effectively preventing the raw material liquid from entering the exhaust pipe and causing inconvenience in demoulding.
[0013] 2. The utility model adds structures such as a fixing frame, a limiting seat and a pull rod to the mold cover, and the limiting seat can be driven by the elastic force of the second spring to slide into the limiting frame outside the exhaust pipe to limit the exhaust pipe. When demolding is required, the limiting seat can be separated from the limiting frame, and then the mold cover can be removed in advance, and then the exhaust pipe can be removed from the injection molded part by vibration, which can make the mold easier to demold. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The overall structure of the utility model is three-dimensional Figure 1 ;
[0015] Figure 2 The overall structure of the utility model is three-dimensional Figure 2 ;
[0016] Figure 3 For the utility model Figure 1 A three-dimensional cross-sectional view of
[0017] Figure 4 For the utility model Figure 3 A-section structure enlarged view.
[0018] In the figure: 1. mold cover; 2. exhaust pipe; 3. auxiliary demoulding mechanism; 4. fixing bar; 5. moving rod; 6. fixing plate; 7. hollow shell; 8. spring one; 31. fixing frame; 32. pull rod; 33. pull ring; 34. limit seat; 35. spring two; 36. limit frame. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1 , Figure 2 , Figure 3 An injection mold with exhaust function includes a mold cover 1, an exhaust pipe 2 is slidably connected inside the mold cover 1, an auxiliary demoulding mechanism 3 is arranged on the mold cover 1, a fixing bar 4 is fixedly connected to the middle of the inner wall of the exhaust pipe 2, a moving rod 5 is slidably connected inside the fixing bar 4, a fixing plate 6 is fixedly connected to the lower end of the moving rod 5, a hollow shell 7 is fixedly connected to the lower end of the fixing plate 6, and a spring 8 is arranged on the outer side of the moving rod 5.
[0021] See also Figure 1 , Figure 2 , Figure 3 One end of a spring 8 is fixedly connected to the fixing bar 4, and the other end of the spring 8 is fixedly connected to the fixing plate 6. The spring 8 can support the fixing plate 6 by elastic force, and the elastic force value of the spring 8 is less than the buoyancy of the hollow shell 7. The hollow shell 7 is made of aluminum alloy material. The shape of the hollow shell 7 is a truncated cone. The density of the aluminum alloy material is relatively low, and the hollow shell 7 can be moved by the buoyancy of the molten raw material.
[0022] See also Figure 1 , Figure 3 , Figure 4The auxiliary demoulding mechanism 3 includes a fixed frame 31, and the upper end of the mold cover 1 and the left and right sides of the exhaust pipe 2 are fixedly connected with the fixed frame 31, and the inside of the fixed frame 31 is slidably connected with a pull rod 32, and the end of the pull rod 32 close to the exhaust pipe 2 is fixedly connected to the limiting seat 34, and the outer side of the exhaust pipe 2 is fixedly connected to the limiting frame 36, and the outer side of the pull rod 32 is provided with a spring 2 35, and the limiting seat 34 is slidably connected to the limiting frame 36, and the limiting seat 34 can limit the exhaust pipe 2 through the limiting frame 36, and the pull rod 32 is fixedly connected with a pull ring 33 at one end away from the exhaust pipe 2, and the pull ring 33 contacts the fixed frame 31, and the pull ring 33 can drive the pull rod 32 to move, one end of the spring 2 35 is fixedly connected to the fixed frame 31, and the other end of the spring 2 35 is fixedly connected to the limiting seat 34, and the spring 2 35 can drive the limiting seat 34 to automatically reset through elastic force.
[0023] The specific implementation process of the utility model is as follows: when in use, the molten raw material liquid is injected into the interior of the mold box. During the injection process of the mold box, the gas is discharged to the outside of the mold cover 1 through the exhaust pipe 2. When the liquid level of the raw material liquid contacts the hollow shell 7, the hollow shell 7 floats upward under the buoyancy of the liquid surface. When the buoyancy of the hollow shell 7 is greater than the elastic force of the spring 8, the hollow shell 7 moves upward under the action of the buoyancy. When the hollow shell 7 contacts the exhaust pipe 2, the exhaust pipe 2 can be sealed to prevent excessive raw material liquid from entering the interior of the exhaust pipe 2.
[0024] When demoulding is required, the pull ring 33 is pulled, and the pull ring 33 drives the limit seat 34 to move through the pull rod 32 and compresses the spring 2 35. When the limit seat 34 is separated from the limit frame 36, the limit of the exhaust pipe 2 can be released, and then the mold cover 1 can be easily removed from the injection molded part, so that the mold can be more convenient to demould.
[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An injection mold with exhaust function, comprising a mold cover (1), characterized in that: The mold cover (1) is internally slidably connected to an exhaust pipe (2), an auxiliary demoulding mechanism (3) is provided on the mold cover (1), a fixing strip (4) is fixedly connected to the middle of the inner wall of the exhaust pipe (2), a moving rod (5) is internally slidably connected to the fixing strip (4), a fixing plate (6) is fixedly connected to the lower end of the moving rod (5), a hollow shell (7) is fixedly connected to the lower end of the fixing plate (6), and a spring (8) is provided on the outer side of the moving rod (5).
2. The injection mold with exhaust function according to claim 1, characterized in that: One end of the spring one (8) is fixedly connected to the fixing strip (4), and the other end of the spring one (8) is fixedly connected to the fixing plate (6).
3. The injection mold with exhaust function according to claim 1, characterized in that: The hollow shell (7) is made of aluminum alloy material, and the shape of the hollow shell (7) is a truncated cone.
4. The injection mold with exhaust function according to claim 1, characterized in that: The auxiliary demoulding mechanism (3) comprises a fixed frame (31), the upper end of the mold cover (1) and the left and right sides of the exhaust pipe (2) are fixedly connected to the fixed frame (31), the interior of the fixed frame (31) is slidably connected to a pull rod (32), one end of the pull rod (32) close to the exhaust pipe (2) is fixedly connected to a limiting seat (34), the outer side of the exhaust pipe (2) is fixedly connected to a limiting frame (36), a spring 2 (35) is arranged on the outer side of the pull rod (32), and the limiting seat (34) is slidably connected to the limiting frame (36).
5. The injection mold with exhaust function according to claim 4, characterized in that: One end of the pull rod (32) away from the exhaust pipe (2) is fixedly connected to a pull ring (33), and the pull ring (33) is in contact with the fixing frame (31).
6. The injection mold with exhaust function according to claim 4, characterized in that: One end of the second spring (35) is fixedly connected to the fixing frame (31), and the other end of the second spring (35) is fixedly connected to the limiting seat (34).