Injection molding machine with bubble removing mechanism

By designing guide defoaming components and input components, and combining vibration and moving contact methods to eliminate air bubbles in raw materials, the problem of air bubble generation in injection molding machines has been solved, improving product quality and production efficiency.

CN224060311UActive Publication Date: 2026-03-31四川蜀化科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing injection molding machines are prone to entrapping air during the raw material falling process, generating air bubbles, which can lead to air bubbles, blemishes, or surface defects in the molded products, affecting their appearance.

Method used

The system employs a guided defoaming assembly and an input assembly, including a guide channel, contact block, vibration motor, and vibration motor, to eliminate air bubbles in the raw material through slow guidance, vibration, and moving contact, combined with an electric auger for injection molding.

Benefits of technology

It effectively reduces the probability of air bubbles entering the mold cavity, improves the quality of molded products and production efficiency, and reduces product defects and inherent flaws.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of bubble removal of raw materials injected by an injection molding machine, in particular to an injection molding machine with a bubble removal mechanism, which comprises an injection channel, a bubble removal mechanism and a bubble removal mechanism, the bubble eliminating mechanism is used for eliminating bubbles entering during injection, and the bubble eliminating mechanism is arranged on one side of the injection channel; the bubble eliminating mechanism comprises an electric auger rod which is fixedly mounted in the injection channel; when the device is used, raw materials entering the device can be slowly guided through the guiding and bubble removing assembly, bubbles generated when air enters the raw materials can be reduced, meanwhile, the guiding and bubble removing assembly can make movable contact with the internal flowing raw materials to vibrate out the bubbles in the raw materials, and therefore the bubbles in the raw materials are better eliminated, and the product quality is effectively improved; and the input assembly can transfer the raw materials subjected to bubble removal, so that the raw materials are stably input into the injection channel, and injection molding is conducted through an electric auger rod.
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Description

Technical Field

[0001] This utility model relates to the field of degassing technology for injection molding machine raw materials, and particularly to an injection molding machine with a degassing mechanism. Background Technology

[0002] Injection molding machines are molding equipment that uses thermoplastic or thermosetting raw materials and molds to make products of various shapes. Injection molding machines are generally divided into vertical and horizontal types. However, for small and precision injection molding products such as connectors, plugs or wire plugs, vertical injection molding machines are more suitable because they take up less space and are easier to transport.

[0003] As shown in the reference case "A high-quality injection molding machine with a de-bubbling mechanism" (Announcement No. CN220129401U), reducing the falling speed of the raw material reduces the occurrence of bubbles generated by the impact of the added raw material on the liquid surface in the heating cylinder, thereby reducing the consequences of bubbles being pushed into the mold cavity by the screw rod and reducing the occurrence of defects in the molded product, thus improving the quality of the cast product.

[0004] Although existing injection molding machines have reduced the falling speed of raw materials, air can still be easily entangled in the raw materials during the falling process, generating bubbles. When these bubbles enter the molten material, they cause bubbles, blemishes, or surface defects in the molded products, affecting the appearance of the products.

[0005] Therefore, an injection molding machine with a bubble removal mechanism is proposed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide an injection molding machine with a de-bubbling mechanism to solve the above-mentioned problems. This improves the problem that although the existing injection molding machine reduces the falling speed of the raw material, the raw material is still prone to air entrapment during the falling process, generating bubbles. After these bubbles enter the molten material, they cause bubbles, defects or surface defects in the molded product, affecting the appearance of the product.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: an injection molding machine with a degassing mechanism, comprising: an injection channel, wherein a feed inlet is provided on one side of the injection channel; and a bubble elimination mechanism, wherein the bubble elimination mechanism is provided on one side of the injection channel for eliminating bubbles that enter during injection; wherein the bubble elimination mechanism includes an electric auger fixedly installed inside the injection channel, a guide degassing component is provided between the injection channel and the feed inlet, and an input component is provided on one side of the injection channel. During use, the guide degassing component can slowly guide the incoming raw material, reducing the amount of air entering the raw material and generating bubbles. Simultaneously, the guide degassing component can move and contact the internally flowing raw material to vibrate out the bubbles within the raw material, thereby better eliminating bubbles and effectively improving product quality. The input component can transfer the degassed raw material, ensuring its stable input into the injection channel for injection molding by the electric auger.

[0008] Preferably, the guiding defoaming assembly includes a guide channel fixedly installed on one side of the feed inlet. The guide channel is obliquely arranged, and a transfer chamber is fixedly connected to one side of the guide channel. The transfer chamber is connected to the injection channel. A contact block is provided inside the guide channel. The raw material is introduced through the feed inlet and slowly introduced through the oblique guide channel. When the raw material is introduced, the contact block can move and contact the incoming raw material, and vibrate the raw material during contact to remove air bubbles in the raw material, preventing air bubbles from entering the injection mold cavity and significantly reducing product defects or inherent defects caused by air bubbles.

[0009] Preferably, the guide defoaming assembly further includes an electric slide rail fixedly installed on one side of the guide channel. The contact block is fixedly connected to the electric slide rail, and a vibration motor is fixedly installed inside the contact block. When the raw material is introduced, the electric slide rail drives the contact block to reciprocate within the guide channel. When the contact block moves, the internal vibration motor synchronously vibrates it. By combining vibration and motion, the bursting and escape of bubbles in the raw material can be effectively accelerated, and bubbles can be more effectively removed from the raw material, reducing the probability of bubbles entering the mold cavity, thereby improving the quality of injection molded products.

[0010] Preferably, the side of the contact block near the feed inlet is sloping, and the side of the contact block near the transfer chamber is provided with an arc-shaped opening. When the contact block moves toward the feed inlet, the sloping surface guides the raw material to move to the other side. When the contact block moves toward the transfer chamber, the arc-shaped opening can push the raw material on the other side, making the raw material move faster, reducing the dwell time of the raw material during the movement, and improving the feeding speed and efficiency of the raw material.

[0011] Preferably, the top of the contact block is provided with a movable plate, one side of which is rotatably connected to the contact block. When the contact block moves toward the feed inlet, the movable plate remains in contact with the contact block and does not move. When the contact block moves toward the transfer chamber, the movable plate rotates, but the movable plate is a limited rotation and can only rotate 90 degrees before it cannot continue to rotate. This can increase the contact area with the raw material when the contact block moves toward the transfer chamber, thus accelerating the feeding process.

[0012] Preferably, the input component includes a guide plate fixedly installed inside the transfer chamber. The guide plate is triangular in shape, and the triangular shape of the guide plate can guide the raw materials inside the transfer chamber, so that the raw materials are stably input into the channel.

[0013] Preferably, a vibration motor is fixedly installed at the bottom of the transfer chamber, and multiple vibration rods are fixedly connected to the output end of the vibration motor. One end of each vibration rod extends into the interior of the transfer chamber. When the raw material passes through the transfer chamber, the vibration motor can vibrate the multiple vibration rods, which promotes the flow of the raw material, makes the accumulation of the raw material in the transfer chamber more loose, reduces the jamming or agglomeration of the raw material, and ensures that the raw material can flow more smoothly into the injection channel of the injection molding machine.

[0014] The beneficial effects of this utility model are:

[0015] 1. During use, the guide defoaming component can slowly guide the incoming raw material, which can reduce the amount of air entering the raw material and generating bubbles. At the same time, the guide defoaming component can move and contact with the internal flowing raw material to vibrate out the bubbles in the raw material, thereby better eliminating the bubbles in the raw material and effectively improving product quality. The input component can transfer the defoamed raw material and stably input it into the injection channel, where it is injected by the electric auger rod.

[0016] 2. When the raw material passes through the transfer chamber, the vibration motor can vibrate multiple vibration rods to promote the flow of the raw material, making the accumulation of raw material in the transfer chamber more loose, reducing the phenomenon of raw material jamming or agglomeration, and ensuring that the raw material can flow more smoothly into the injection channel of the injection molding machine. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the bubble elimination mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the guiding defoaming component of this utility model;

[0020] Figure 4 This is a schematic diagram of the input component structure of this utility model.

[0021] In the diagram: 1. Injection channel; 2. Feed inlet; 3. Bubble removal mechanism; 31. Electric auger rod; 32. Guide defoaming assembly; 321. Guide channel; 322. Electric slide rail; 323. Contact block; 324. Vibration motor; 325. Movable plate; 326. Transfer chamber; 33. Input assembly; 331. Guide plate; 332. Vibration motor; 333. Vibration rod. Detailed Implementation

[0022] 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.

[0023] In practical implementation: such as Figure 1-4 As shown, an injection molding machine with a degassing mechanism includes: an injection channel 1, with a feed inlet 2 on one side of the injection channel 1; and a bubble elimination mechanism 3, which is used to eliminate bubbles entering during injection and is located on one side of the injection channel 1. The bubble elimination mechanism 3 includes an electric auger rod 31 fixedly installed inside the injection channel 1. A guide degassing component 32 is provided between the injection channel 1 and the feed inlet 2. An input component 33 is provided on one side of the injection channel 1. During use, the guide degassing component 32 can slowly guide the incoming material, reducing the amount of air entering the material and generating bubbles. Simultaneously, the guide degassing component 32 can move and contact the internally flowing material to vibrate out the bubbles, thereby better eliminating bubbles and effectively improving product quality. The input component 33 can transfer the degassed material, ensuring its stable input into the injection channel 1 for injection molding by the electric auger rod 31.

[0024] During injection molding, the injected raw material can be squeezed and injected by the electric auger rod 31. The guide defoaming component 32 is located between the feed port 2 and the injection channel 1. It can remove air bubbles from the raw material moving during feeding without affecting the normal feeding, thereby effectively improving product quality.

[0025] The guide defoaming assembly 32 includes a guide channel 321 fixedly installed on one side of the feed inlet 2. The guide channel 321 is inclined, and a transfer chamber 326 is fixedly connected to one side of the guide channel 321. The transfer chamber 326 is connected to the injection channel 1. A contact block 323 is provided inside the guide channel 321. The raw material is introduced through the feed inlet 2 and slowly introduced through the inclined guide channel 321. When the raw material is introduced, the contact block 323 can move and contact the incoming raw material, and vibrate the raw material during contact to remove air bubbles in the raw material, preventing air bubbles from entering the injection mold cavity and significantly reducing product defects or inherent defects caused by air bubbles.

[0026] like Figure 2 , Figure 3 and Figure 4 As shown, the guide defoaming assembly 32 also includes an electric slide rail 322 fixedly installed on one side of the guide channel 321. The contact block 323 is fixedly connected to the electric slide rail 322. A vibration motor 324 is fixedly installed inside the contact block 323. When the raw material is introduced, the electric slide rail 322 drives the contact block 323 to reciprocate within the guide channel 321. When the contact block 323 moves, the internal vibration motor 324 synchronously vibrates it. By combining vibration and motion, the bursting and escape of bubbles in the raw material can be effectively accelerated, and bubbles can be more effectively removed from the raw material, reducing the probability of bubbles entering the mold cavity, thereby improving the quality of injection molded products.

[0027] The contact block 323 has a sloping side near the feed inlet 2 and an arc-shaped opening on the side near the transfer chamber 326. When the contact block 323 moves towards the feed inlet 2, the sloping side guides the material, facilitating its movement to the other side. When the contact block 323 moves towards the transfer chamber 326, the arc-shaped opening pushes the material on the other side, allowing for faster movement, reducing the material's dwell time, and improving the feeding speed and efficiency. A movable plate 325 is provided on the top of the contact block 323. One side of the movable plate 325 is rotatably connected to the contact block 323. When the contact block 323 moves toward the feed inlet 2, the movable plate 325 remains in contact with the contact block 323. When the contact block 323 moves toward the transfer chamber 326, the movable plate 325 rotates. However, the movable plate 325 is a limited rotation and can only rotate 90 degrees before it cannot continue to rotate. This can increase the contact area with the raw material when the contact block 323 moves toward the transfer chamber 326, thus accelerating the feeding process.

[0028] like Figure 2 , Figure 3 and Figure 4As shown, the input component 33 includes a guide plate 331 fixedly installed inside the transfer chamber 326. The guide plate 331 is triangular in shape. The triangular shape of the guide plate 331 can guide the raw material in the transfer chamber 326, so that the raw material is stably input into the injection channel 1. A vibration motor 332 is fixedly installed at the bottom of the transfer chamber 326. Multiple vibration rods 333 are fixedly connected to the output end of the vibration motor 332, and one end of each vibration rod 333 extends into the interior of the transfer chamber 326. When the raw material passes through the transfer chamber 326, the vibration motor 332 can vibrate the multiple vibration rods 333, which promotes the flow of the raw material and makes the accumulation of the raw material in the transfer chamber 326 more loose, reducing the jamming or agglomeration of the raw material, and ensuring that the raw material can flow more smoothly into the injection channel 1 of the injection molding machine.

[0029] In use, the raw material is introduced through the feed inlet 2 and slowly guided through the inclined guide channel 321. During the introduction of the raw material, the electric slide rail 322 drives the contact block 323 to reciprocate within the guide channel 321. Simultaneously, the internal vibration motor 324 vibrates the contact block 323 as it moves. This combination of vibration and motion effectively accelerates the bursting and escape of air bubbles in the raw material, more effectively removing them and reducing the probability of bubbles entering the mold cavity, thereby improving the quality of the injection molded product. The contact block 323 moves towards the feed inlet 2 via the inclined surface... The guide material allows the material to be easily moved to the other side. When the contact block 323 moves towards the transfer chamber 326, the material on the other side can be pushed through the arc-shaped opening, making the material move faster and reducing the dwell time of the material during the movement. This improves the pouring speed and efficiency of the material. When the material passes through the transfer chamber 326, the vibration motor 332 can vibrate multiple vibration rods 333 to promote the flow of the material. This makes the accumulation of the material in the transfer chamber 326 more loose, reducing the jamming or agglomeration of the material and ensuring that the material can flow more smoothly into the injection channel 1 of the injection molding machine.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An injection molding machine having a bubble removing mechanism, characterized by comprising: The utility model relates to an injection channel (1) is provided with feed inlet (2) on one side of injection channel (1), bubble elimination mechanism (3) is used for eliminating the bubble that enters when injecting, and the bubble elimination mechanism (3) is arranged on one side of injection channel (1), wherein the bubble elimination mechanism (3) includes electric screw rod (31) fixedly installed in the inside of injection channel (1), the injection channel (1) is provided with guiding bubble-removing component (32) between injection channel (1) and feed inlet (2), and one side of injection channel (1) is provided with input component (33). The guiding bubble-removing component (32) includes guiding channel (321) fixedly installed on one side of feed inlet (2), the guiding channel (321) is obliquely arranged, one side of the guiding channel (321) is fixedly connected with transfer bin (326), the transfer bin (326) is communicated with injection channel (1), and the inside of the guiding channel (321) is provided with contact block (323). The guiding bubble-removing component (32) further includes electric slide rail (322) fixedly installed on one side of the guiding channel (321), the contact block (323) is fixedly connected with the electric slide rail (322), and the inside of the contact block (323) is fixedly installed with vibration motor (324). One side of the contact block (323) close to the feed inlet (2) is arranged as an inclined surface, and one side of the contact block (323) close to the transfer bin (326) is provided with a circular arc opening.

2. An injection molding machine having a bubble removing mechanism according to claim 1, characterized in that: The top of the contact block (323) is provided with a movable plate (325), and one side of the movable plate (325) is rotatably connected with the contact block (323).

3. An injection molding machine having a bubble removing mechanism according to claim 2, characterized in that: The input component (33) includes a guide plate (331) fixedly installed in the inside of the transfer bin (326), and the guide plate (331) is arranged in a triangular shape.

4. An injection molding machine having a bubble removing mechanism according to claim 2, characterized in that: The bottom of the transfer bin (326) is fixedly installed with a vibration motor (332), the output end of the vibration motor (332) is fixedly connected with a plurality of vibration rods (333), and one end of the plurality of vibration rods (333) extends into the inside of the transfer bin (326).

5. An injection molding machine having a bubble removing mechanism according to claim 2, characterized in that: ​ 6. An injection molding machine having a bubble removing mechanism according to claim 2, characterized in that: ​ 7. An injection molding machine having a bubble removing mechanism according to claim 6, characterized in that: ​

Citation Information

Patent Citations

  • High-quality injection molding machine with bubble removing mechanism

    CN220129401U