High-frequency vibration bubble-removing injection molding device for elastomer sealing element
The automated upper and lower mold locking and unlocking mechanism solves the problems of inconvenience in using manual limit components and mold gaps in existing technologies, thereby improving the molding accuracy of elastomer seals and the stability of equipment.
Patent Information
- Application Number
- CN202521431497.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-09
- Publication Date
- 2026-05-26
- Estimated Expiration
- 2035-07-09
AI Technical Summary
In the process of removing air bubbles during high-frequency vibration, existing injection molds require manual operation of the limiting components, which is inconvenient to use and may cause gaps between the upper and lower molds, affecting the molding accuracy of the seals.
A high-frequency vibration degassing injection molding device for elastomeric seals was designed. The device uses a drive component to control the up and down movement of the upper mold, and achieves automatic locking and unlocking of the upper and lower molds through the cooperation of guide components, insert blocks, and limit slots. Combined with shock-absorbing connecting springs and buffer support blocks, it prevents rigid collisions and vibrations of the mold from affecting it.
It achieves automated mold closing and opening of the upper and lower molds, preventing gaps, improving the molding accuracy of the seals and the service life of the equipment, while reducing injection molding processes and providing a stable working environment.
Smart Images
Figure CN224276062U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding equipment technology, specifically to a high-frequency vibration degassing injection molding device for elastomer seals. Background Technology
[0002] In the injection molding process of elastomeric seals, residual air bubbles inside the product are a key issue affecting product quality. The presence of air bubbles not only reduces the mechanical properties of the seals but may also lead to seal failure, seriously affecting their application in fields with extremely high sealing performance requirements, such as automobiles and aerospace. In the existing technology, some injection molds use a vibration motor to vibrate, using high-frequency vibration to make the air bubbles in the molten material float to the surface and be expelled.
[0003] Chinese patent CN370995358U discloses a bubble removal device for injection molds. This device effectively improves the problem of residual bubbles by vibrating the injection platform with a vibration motor. Furthermore, by setting a limiting component, it prevents the cover plate and the injection platform from separating during vibration, thus avoiding flash on the molded product.
[0004] However, the limiting components that fix the cover plate and the injection platform in the above device need to be operated manually, making the device more troublesome to use. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a high-frequency vibration degassing injection molding device for elastomeric seals, which has an automatic locking function between the upper and lower molds to prevent gaps from appearing between the upper and lower molds due to high-frequency vibration degassing, thus solving the problems mentioned in the background art.
[0007] (II) Technical Solution
[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0009] A high-frequency vibration degassing injection molding device for elastomeric seals includes a base, a lower mold, and an upper mold. A vertical guide rod is fixedly installed on the base. Both the lower mold and the upper mold have sliding holes that are adapted to slide with the vertical guide rod. A vibration motor is fixedly installed on the lower surface of the lower mold. Limiting grooves are formed on both outer walls of the lower mold. Insert blocks are slidably provided on both sides of the upper mold, and the insert blocks are adapted to engage with the limiting grooves.
[0010] A driving component is provided above the base. The driving component is used to control the upper mold to move up and down. A guide component is fixedly installed at the lower end of the driving component. When the lower surface of the upper mold contacts the upper surface of the lower mold, the guide component can push the insert block to move laterally and insert it into the limiting slot. When the driving component moves upward, the guide component separates from the insert block so that the insert block can be released from the limiting slot, thereby separating the upper mold and the lower mold.
[0011] Preferably, a shock-absorbing connecting spring is fixedly installed on the lower surface of the driving component, the shock-absorbing connecting spring is fixedly connected to the upper surface of the upper mold, a buffer support block is fixedly installed on the upper surface of the upper mold, a groove is provided on one side wall of the buffer support block, and the driving component slides inside the groove.
[0012] Preferably, transverse guide rods are fixedly installed on both outer walls of the upper mold, a slide plate is slidably installed on the transverse guide rods, a return spring is fixedly installed between the slide plate and the lower mold, and the insert block is fixedly connected to the lower end of the slide plate.
[0013] Preferably, the bottom of the guide member is provided with a ramp surface, and the upper end of the slide plate is fixedly installed with a driven block. The driven block is adapted to and abuts against the ramp surface of the guide member, and the contact surfaces of the driven block and the guide member are both set as smooth surfaces.
[0014] Preferably, the limiting slot includes a trapezoidal portion and a rectangular portion, the trapezoidal portion being connected to the outer side wall of the lower mold, and the rectangular portion being formed at the end of the trapezoidal portion.
[0015] Preferably, the driving component is slidably connected to the vertical guide rod.
[0016] Preferably, the upper surface of the upper mold is provided with an injection port and an vent.
[0017] Preferably, a spring shock absorber is fixedly installed between the lower mold and the base.
[0018] (III) Beneficial Effects
[0019] Compared with the prior art, this utility model provides a high-frequency vibration degassing injection molding device for elastomer seals, which has the following beneficial effects:
[0020] 1. This high-frequency vibration de-bubbling injection molding device for elastomeric seals controls the up-and-down movement of the upper mold by setting a driving component. It also utilizes the cooperation of guide components, insert blocks, and limit slots to achieve automatic locking when the upper and lower molds are closed and automatic unlocking when the molds are opened. This eliminates the need for manual operation of the limit components, reducing the injection molding process for elastomeric seals. At the same time, when the vibration motor drives the lower mold to vibrate, it can effectively prevent gaps from appearing between the upper and lower molds, ensuring the molding accuracy of the elastomeric seals.
[0021] 2. This high-frequency vibration degassing injection molding device for elastomeric seals, by setting up shock-absorbing connecting springs, buffer support blocks, and spring dampers between the lower mold and the base, can effectively buffer the impact force of the upper mold descending during the mold closing process, avoiding rigid collision damage to the mold. At the same time, the shock-absorbing connecting springs and spring dampers can absorb the vibration energy generated by the vibration motor, reducing the impact of mold vibration on the base and other components. This not only extends the service life of the equipment but also provides a stable working environment for the high-frequency vibration degassing process.
[0022] 3. The high-frequency vibration de-bubbling injection molding device for this elastomeric seal uses a structure combining a trapezoidal and rectangular portion for the limiting slot. During mold vibration, the insert block moves a small distance laterally due to the influence of the return spring, preventing the lock between the upper and lower molds from loosening. Combined with the ramp surface at the bottom of the guide and the transmission system consisting of the slide plate and return spring, the insert block can quickly and accurately slide into the slot to lock when the mold is closed, and automatically reset and disengage when the mold is opened. Attached Figure Description
[0023] Figure 1 This is one of the three-dimensional structural schematic diagrams of the injection molding device of this utility model;
[0024] Figure 2 This is one of the front structural cross-sectional views of the injection molding device of this utility model;
[0025] Figure 3 This is the second three-dimensional structural schematic diagram of the injection molding device of this utility model;
[0026] Figure 4 This is the second front structural sectional view of the injection molding device of this utility model;
[0027] Figure 5 This utility model Figure 4 A magnified view of the local structure at point A in the middle.
[0028] In the picture:
[0029] 1. Base; 11. Vertical guide rod;
[0030] 2. Lower mold; 21. Limiting slot; 211. Trapezoidal part; 212. Rectangular part;
[0031] 3. Upper mold; 31. Insert block; 32. Injection port; 33. Vent hole; 34. Horizontal guide rod; 35. Slide plate; 36. Return spring; 37. Follower block;
[0032] 4. Vibration motor;
[0033] 5. Driving component; 51. Guide component; 52. Shock-absorbing connecting spring;
[0034] 6. Buffer support block; 61. Groove;
[0035] 7. Spring shock absorber. Detailed Implementation
[0036] 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.
[0037] Example 1
[0038] Please see Figure 1 and Figure 3 This utility model provides a high-frequency vibration degassing injection molding device for elastomeric seals, including a base 1, a lower mold 2 and an upper mold 3. A vertical guide rod 11 is fixedly installed on the base 1. Both the lower mold 2 and the upper mold 3 are provided with sliding holes that are adapted to slide with the vertical guide rod 11. A vibration motor 4 is fixedly installed on the lower surface of the lower mold 2. Limiting slots 21 are provided on the outer walls of both sides of the lower mold 2. Insert blocks 31 are slidably provided on both sides of the upper mold 3. The insert blocks 31 are adapted to and engaged with the limiting slots 21.
[0039] A driving component 5 is provided above the base 1. The driving component 5 is used to control the upper mold 3 to move up and down. A guide component 51 is fixedly installed at the lower end of the driving component 5. When the lower surface of the upper mold 3 contacts the upper surface of the lower mold 2, the guide component 51 can push the insert block 31 to move laterally and insert it into the limiting slot 21. When the driving component 5 moves upward, the guide component 51 separates from the insert block 31 so that the insert block 31 can be dislodged from the limiting slot 21, thereby separating the upper mold 3 from the lower mold 2.
[0040] As can be seen from the above, by setting the driving component 5 to control the upper mold 3 to move up and down, and by using the guide component 51 to cooperate with the insert block 31 and the limiting slot 21, the automatic locking when the upper mold 3 and the lower mold 2 are closed and the automatic unlocking when the mold is opened are realized. There is no need to manually operate the limiting component, which reduces the injection molding process of the elastomeric seal. At the same time, when the vibration motor 4 drives the lower mold 2 to vibrate, it can effectively prevent gaps from appearing between the upper mold 3 and the lower mold 2, and ensure the molding accuracy of the elastomeric seal.
[0041] The driving component 5 mentioned in this embodiment is used to connect and install with the driving equipment for controlling mold closing, such as a hydraulic cylinder or an electric push rod.
[0042] When using this device, the upper mold 3 is driven by the drive component 5 to move downward along the vertical guide rod 11 until the upper mold 3 contacts the lower mold 2. At this time, the drive component 5 continues to move downward, causing the guide component 51 to push the insert block 31 to move laterally and insert it into the limiting slot 21 to complete the mold closing and locking. Molten elastomer material is injected into the mold, and then the vibration motor 4 is started to eliminate air bubbles in the material by high-frequency vibration. After the material solidifies and forms, the drive component 5 drives the upper mold 3 to move upward, the guide component 51 separates from the insert block 31, the insert block 31 comes out from the limiting slot 21, and then the upper mold 3 is driven upward by the drive component 5 to separate from the lower mold 2, so that the formed elastomer seal can be taken out.
[0043] Example 2
[0044] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the difference between this embodiment and the above embodiment is that a shock-absorbing connecting spring 52 is fixedly installed on the lower surface of the driving component 5, the shock-absorbing connecting spring 52 is fixedly connected to the upper surface of the upper mold 3, a buffer support block 6 is fixedly installed on the upper surface of the upper mold 3, a groove 61 is provided on one side wall of the buffer support block 6, and the driving component 5 slides inside the groove 61.
[0045] As can be seen from the above, through the combined action of the shock-absorbing connecting spring 52 and the buffer support block 6, when the upper mold 3 impacts the lower mold 2, the shock-absorbing connecting spring 52 vibrates, and at the same time, the driving component 5 contacts the lower end of the groove 61, which can effectively buffer the impact force when the upper mold 3 descends, and avoid damage to the mold due to rigid collision. Meanwhile, the buffer support block 6 should be a block structure with a certain degree of elasticity. When the driving component 5 abuts against the lower end of the groove 61, the shock-absorbing connecting spring 52 will not continue to be compressed, thus avoiding excessive compression of the shock-absorbing connecting spring 52. When the driving component 5 rises, the driving component 5 contacts the upper end of the groove 61, pulling the upper mold 3 upward, which can prevent the shock-absorbing connecting spring 52 from being overstretched.
[0046] Both sides of the upper mold 3 are fixedly installed with transverse guide rods 34, and slide plates 35 are slidably installed on the transverse guide rods 34. A return spring 36 is fixedly installed between the slide plate 35 and the lower mold 2. The insert block 31 is fixedly connected to the lower end of the slide plate 35.
[0047] As can be seen from the above, by setting the transverse guide rod 34 and the slide plate 35, the insertion block 31 can only move in a straight line along the length direction of the transverse guide rod 34. By setting the reset spring 36, the power can be provided for the insertion block 31 to disengage from the limit slot 21. When the guide member 51 separates from the driven block 37, the reset spring 36 pushes the slide plate 35 to move the insertion block 31 laterally, so that the insertion block 31 can be smoothly disengaged from the limit slot 21.
[0048] The bottom of the guide member 51 is provided with a ramp surface, and the upper end of the slide plate 35 is fixedly installed with a driven block 37. The driven block 37 is adapted to abut against the ramp surface of the guide member 51, and the contact surfaces of the driven block 37 and the guide member 51 are both set as smooth surfaces.
[0049] As can be seen from the above, due to the principle of inclined plane transmission, when the driving component 5 drives the upper mold 3 to descend, the inclined surface of the guide component 51 contacts the driven block 37 and pushes the driven block 37 to move. This can convert the vertical movement of the upper mold 3 into the lateral movement of the slide plate 35 and the insert block 31, so that the insert block 31 automatically inserts into the limiting slot 21. At the same time, the contact surfaces of the driven block 37 and the guide component 51 are both set to smooth surfaces, which can reduce frictional resistance and make the movement of the insert block 31 smoother.
[0050] The limiting slot 21 includes a trapezoidal portion 211 and a rectangular portion 212. The trapezoidal portion 211 is connected to the outer side wall of the lower mold 2, and the rectangular portion 212 is formed at the end of the trapezoidal portion 211.
[0051] As can be seen from the above, by setting the trapezoidal part 211, it is easy for the insert block 31 to slide into the limiting slot 21, which plays a role in initial guidance and positioning. By setting the rectangular part 212, a stable locking space is provided. When the mold vibrates, the insert block 31 moves laterally a small distance due to the action of the reset spring 36, and the locking between the upper mold 3 and the lower mold 2 will not loosen, thus ensuring the sealing and stability of the mold during the vibration and bubble removal process.
[0052] Example 3
[0053] like Figure 1 As shown, the difference between this embodiment and the above embodiment is that the driving component 5 is slidably connected to the vertical guide rod 11.
[0054] As can be seen from the above, the sliding connection between the driving component 5 and the vertical guide rod 11 provides guidance and support for the driving component 5, so that the guide component 51 will not move laterally during the up and down movement, thus ensuring the locking accuracy of the insertion block 31 and the limit slot 21.
[0055] The upper surface of the upper mold 3 is provided with an injection port 32 and an vent 33.
[0056] As can be seen from the above, the injection port 32 is set to inject molten elastomer material into the mold cavity, and the vent 33 is set to timely discharge air in the mold cavity during the injection process to prevent air residue from forming bubbles.
[0057] A spring shock absorber 7 is fixedly installed between the lower mold 2 and the base 1.
[0058] As can be seen from the above, by setting the spring damper 7, the vibration generated when the vibration motor 4 is working can be absorbed, and the vibration transmitted to the base 1 and other components can be reduced.
[0059] 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 high-frequency vibration degassing injection molding device for elastomeric seals, comprising a base, a lower mold, and an upper mold, characterized in that: A vertical guide rod is fixedly installed on the base. Both the lower mold and the upper mold are provided with sliding holes that are adapted to slide with the vertical guide rod. A vibration motor is fixedly installed on the lower surface of the lower mold. Limiting slots are provided on both outer walls of the lower mold. Insert blocks are slidably provided on both sides of the upper mold. The insert blocks are adapted to and engaged with the limiting slots. A driving component is provided above the base. The driving component is used to control the upper mold to move up and down. A guide component is fixedly installed at the lower end of the driving component. When the lower surface of the upper mold contacts the upper surface of the lower mold, the guide component can push the insert block to move laterally and insert it into the limiting slot. When the driving component moves upward, the guide component separates from the insert block so that the insert block can be released from the limiting slot, thereby separating the upper mold and the lower mold.
2. The high-frequency vibration degassing injection molding device for elastomer seals according to claim 1, characterized in that: A shock-absorbing connecting spring is fixedly installed on the lower surface of the driving component. The shock-absorbing connecting spring is fixedly connected to the upper surface of the upper mold. A buffer support block is fixedly installed on the upper surface of the upper mold. A groove is provided on one side wall of the buffer support block. The driving component slides inside the groove.
3. The high-frequency vibration degassing injection molding device for elastomer seals according to claim 2, characterized in that: Both sides of the upper mold are fixedly equipped with transverse guide rods, and a slide plate is slidably installed on the transverse guide rods. A return spring is fixedly installed between the slide plate and the lower mold, and the insert block is fixedly connected to the lower end of the slide plate.
4. The high-frequency vibration degassing injection molding device for elastomer seals according to claim 3, characterized in that: The bottom of the guide member is provided with a ramp surface, and the upper end of the slide plate is fixedly installed with a driven block. The driven block is adapted to and abuts against the ramp surface of the guide member, and the contact surfaces of the driven block and the guide member are both set as smooth surfaces.
5. The high-frequency vibration degassing injection molding device for elastomer seals according to claim 1, characterized in that: The limiting slot includes a trapezoidal part and a rectangular part. The trapezoidal part is connected to the outer wall of the lower mold, and the rectangular part is formed at the end of the trapezoidal part.
6. The high-frequency vibration degassing injection molding device for elastomer seals according to claim 1, characterized in that: The driving component is slidably connected to the vertical guide rod.
7. The high-frequency vibration degassing injection molding device for elastomer seals according to claim 1, characterized in that: The upper surface of the upper mold is provided with an injection port and an vent.
8. The high-frequency vibration degassing injection molding device for elastomer seals according to claim 1, characterized in that: A spring shock absorber is fixedly installed between the lower mold and the base.