Softened injection molding material feeding mechanism with spray sterilization device

By introducing a spray sterilization device into the feeding mechanism of the injection molding machine, and using auger mixing and atomizing nozzles for sterilization, the problem of bacterial contamination during the injection molding process is solved, achieving uniform mixing and efficient sterilization of raw materials, thereby improving product quality and safety.

CN223493751UActive Publication Date: 2025-10-31珠海得米新材料有限公司
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Patent Information

Application Number
CN202423008483.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-10-31
Estimated Expiration
2034-12-06

AI Technical Summary

Technical Problem

Existing injection molding machine feeding mechanisms lack effective spray sterilization functions, which may lead to plastic parts being contaminated by bacteria and viruses during the injection molding process, affecting product quality and safety.

Method used

A feeding mechanism with a spray sterilization device was designed. The auger is driven by a motor to rotate and cooperate with the sleeve to achieve uniform stirring and mixing of raw materials. At the same time, the sterilizing agent is evenly sprayed by the atomizing nozzle to ensure that the agent is in full contact with the raw materials.

Benefits of technology

It improves the uniformity and flowability of raw materials, ensures the sterilization effect of raw materials, reduces material retention and blockage, and improves production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of injection molding processing, in particular to a softened injection molding material feeding mechanism with a spray sterilization device. According to the technical scheme, an auger is rotationally installed in a charging barrel through a first retainer, a cover plate is installed at the top end of the charging barrel, a motor is installed on the cover plate, and a magnetic coupler is installed at the top end of the auger; the motor is in magnetic coupling with a magnetic coupler of the auger through a magnetic coupler of the speed reducer, a medicament box is installed on the portion, located on one side of the motor, of the cover plate, a liquid storage box is installed above the magnetic coupler of the speed reducer, and medicaments in the medicament box are sprayed out through an atomizing nozzle of the liquid storage box. According to the utility model, medicaments in the liquid storage box are pumped out through the water pump and are uniformly sprayed on raw materials in the charging barrel through the atomizing nozzle, so that microorganisms such as bacteria, viruses and the like in the raw materials are effectively killed, and the sanitary quality and the safety of products are improved.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically to a feeding mechanism for softened injection molding materials with a spray sterilization device. Background Technology

[0002] Injection molding machines are classified in many ways according to their working principles, but they are all machines that pressurize molten plastic to fill a mold. Injection molding machines have the ability to mold complex-shaped, precisely dimensional, or dense plastic products with metal inserts in one step, and are widely used in various fields such as national defense, electromechanical, automotive, transportation, building materials, packaging, agriculture, education and health, and people's daily lives. After the plastic is melted, it needs to be transported by a feeding mechanism to the injection system of the injection molding machine.

[0003] A search revealed that patent CN202322711861.8 discloses a plastic injection molding feeding mechanism with an exhaust structure. While this device injects molten raw material into the mixing cylinder 1 via a pipe connected to the feed port 2, and the stirring motor 4 drives the stirring rod 5 to rotate, slowly stirring the material inside the mixing cylinder 1, it lacks a spray sterilization function. During injection molding, it relies solely on the high temperature of the melting plastic for sterilization. This sterilization method may not be comprehensive or effective, as the effectiveness of high-temperature sterilization is limited by factors such as the melting point of the plastic, the heating temperature, and the heating time. Furthermore, not all types of microorganisms can be effectively killed at the plastic's melting temperature. Relying solely on high temperature for sterilization may not completely eliminate bacteria, viruses, or other microorganisms in the mixing cylinder and pipes. These microorganisms may contaminate the plastic parts during injection molding, affecting product quality and safety. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a softening injection molding feeding mechanism with a spray sterilization device, which solves the problems mentioned in the background art.

[0005] The solution of this utility model to the above-mentioned technical problems is as follows:

[0006] A softening injection molding feeding mechanism with a spray sterilization device includes a barrel, an auger rotatably mounted inside the barrel via a first retainer, a cover plate mounted on the top of the barrel, a flip cover rotatably mounted on the cover plate via a hinge, and a motor mounted on the cover plate, the motor being connected to the auger via a drive.

[0007] The barrel is fitted with a sleeve by a second retainer. The auger is rotatably installed inside the sleeve. The bottom end of the barrel is provided with a discharge pipe, and there is a gap between the discharge pipe and the sleeve. The top end of the auger is equipped with a magnetic coupler.

[0008] A speed reducer is installed at the output end of the motor. The speed reducer is connected to a magnetic coupler for transmission. The motor is magnetically coupled to the auger through the magnetic coupler of the speed reducer, thereby driving the auger through the motor. A medicine box is installed on the cover plate on one side of the motor. The medicine box is provided with a conduit. A liquid storage box is installed above the magnetic coupler of the speed reducer. The conduit of the medicine box extends into the liquid storage box. An atomizing nozzle is installed at the bottom of the liquid storage box.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, when the raw materials in the barrel are stirred, the raw materials enter the auger through the gap between the discharge pipe and the sleeve, and the auger and the sleeve work together to lift and stir the raw materials in the barrel.

[0011] The beneficial effects of adopting the above-mentioned further solutions are:

[0012] The auger and sleeve design allows for effective lifting and mixing of raw materials within the barrel. The auger's rotation not only propels the flow of raw materials but also shears, compresses, and mixes them through the shape and arrangement of its blades, thus improving mixing efficiency. Raw materials continuously enter the auger for mixing through the gap between the discharge pipe and the sleeve. This design ensures uniform distribution and thorough mixing of raw materials within the barrel, preventing accumulation and waste, and improving material utilization. The tight fit between the auger and sleeve reduces dead zones during mixing. Driven by the auger, the raw materials continuously change position and state, avoiding material stagnation and uneven mixing problems that can occur in traditional mixing methods.

[0013] Furthermore, when the raw material in the barrel is discharged, the raw material enters the auger through the gap between the discharge pipe and the sleeve, and the auger and the discharge pipe cooperate to discharge the material from the discharge pipe.

[0014] The beneficial effects of adopting the above-mentioned further solutions are:

[0015] When raw materials need to be discharged from the cylinder, they enter the auger through the gap between the discharge pipe and the sleeve. The rotational motion of the auger ensures that the raw materials are discharged continuously and stably from the discharge pipe, avoiding material blockage or poor flow problems that may occur in traditional feeding methods. Due to the tight cooperation between the auger and the discharge pipe, the raw materials can pass through the discharge pipe quickly under the push of the auger. This design significantly improves the discharge efficiency, enabling the equipment to complete a large number of feeding tasks in a short time. Through the cooperation between the auger and the discharge pipe, the raw materials can be fully pushed and squeezed during the discharge process, thereby avoiding the residue of raw materials in the cylinder or discharge pipe. This helps to reduce raw material waste and ensures the cleanliness and hygiene of the equipment.

[0016] Furthermore, a water pump is installed at the bottom of the liquid storage box. The water pump is evenly distributed on the bottom surface of the liquid storage box, and two atomizing nozzles are symmetrically distributed on both sides of the water pump as a group.

[0017] The beneficial effects of adopting the above-mentioned further solutions are:

[0018] The water pump is evenly distributed on the bottom surface of the storage tank, ensuring uniform pressure of the liquid agent drawn from the tank, thus resulting in uniform droplet size from the atomizing nozzle. This uniform spraying effect helps the agent distribute evenly on the raw materials, improving the sterilization effect. Because the atomizing nozzle produces tiny droplets, these droplets can adhere more effectively to the surface of the raw materials, thereby improving the utilization rate of the agent. In addition, the evenly distributed atomizing nozzle ensures extensive coverage of the agent within the barrel, reducing agent waste. The atomized agent particles can more easily penetrate into the tiny gaps in the raw materials, thus more effectively killing bacteria, viruses, and other microorganisms. Furthermore, due to the small and evenly distributed droplets, the sterilization effect is more significant, improving overall production efficiency and product quality.

[0019] Furthermore, a bracket is installed on the cover plate, and the motor is mounted on the cover plate via the bracket.

[0020] The beneficial effects of adopting the above-mentioned further solutions are:

[0021] Mounting the motor on the cover plate using a bracket ensures its stability during operation. The bracket, acting as a support structure, can withstand the motor's weight and vibrations generated during operation, preventing the motor from wobbling or vibrating and affecting its normal operation. Securely mounting the motor on the cover plate with a bracket ensures its normal operation, thereby improving the overall performance of the equipment. Stable motor operation reduces failure rates and downtime, improving production efficiency and quality.

[0022] Furthermore, a support frame is provided on the outer side of the material cylinder, and the material cylinder is supported on the plane by the support frame.

[0023] The beneficial effects of adopting the above-mentioned further solutions are:

[0024] The support frame provides stable support for the material cylinder, allowing it to be firmly mounted on a flat surface. This stability ensures that the cylinder will not wobble or tilt during operation, thus guaranteeing the safety and reliability of the equipment. The design of the support frame also allows for better vertical support of the cylinder, saving horizontal space.

[0025] This invention provides a feeding mechanism for softening injection molding materials with a spray sterilization device. It has the following beneficial effects:

[0026] A motor drives a reducer, which in turn drives the auger to rotate via a magnetic coupler, achieving efficient mixing of the raw materials within the drum. The cooperation between the auger and the sleeve ensures that the raw materials are effectively lifted and mixed within the drum, guaranteeing their uniformity and flowability. During discharge, the raw materials re-enter the auger through the gap between the discharge pipe and the sleeve. The rotation of the auger propels the raw materials smoothly out of the discharge pipe, ensuring continuous and stable feeding.

[0027] The reagent box can store bactericides or other chemical agents, which are then delivered to the storage tank via a conduit. A water pump extracts the reagent from the storage tank and sprays it evenly onto the raw materials in the feed cylinder through an atomizing nozzle. The atomizing nozzle design ensures thorough contact between the reagent and the raw materials, effectively killing bacteria, viruses, and other microorganisms, thus improving the hygiene and safety of the product. The spray volume and pump operation can be controlled to adapt to the needs of different raw materials and processes. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0029] In the attached diagram:

[0030] Figure 1 This is a schematic diagram of the main appearance of the present utility model;

[0031] Figure 2 This is a cross-sectional view of the material cylinder of this utility model;

[0032] Figure 3 This is a schematic diagram of the main appearance of the liquid storage box of this utility model;

[0033] Figure 4 This is a bottom view of the liquid storage box of this utility model.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Discharge pipe; 10. Material cylinder; 11. Magnetic coupler; 12. First retainer; 13. Second retainer; 14. Sleeve; 15. Screwdriver; 2. Support frame; 3. Liquid storage box; 301. Water pump; 302. Atomizing nozzle; 4. Flip cover; 5. Agent box; 501. Guide tube; 6. Reducer; 7. Motor; 8. Bracket; 9. Cover plate. 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] Please see Figures 1 to 4 As shown, the embodiments provided by this utility model are as follows:

[0038] Example 1

[0039] A softening injection molding feeding mechanism with a spray sterilization device includes a barrel 10. A support frame 2 is provided on the outer side of the barrel 10. The barrel 10 is supported and mounted on a plane by the support frame 2, which provides stable support for the barrel 10, allowing it to be firmly mounted on the plane. This stability ensures that the barrel 10 will not shake or tilt during operation, thus guaranteeing the safety and reliability of the equipment. The design of the support frame 2 allows the barrel 10 to be better supported in the vertical direction, thereby saving horizontal space. An auger 15 is rotatably mounted inside the barrel 10 via a first retainer 12. A cover plate 9 is mounted on the top of the barrel 10. A flip cover 4 is rotatably mounted on the cover plate 9 via a hinge. A motor 7 is mounted on the cover plate 9. A bracket 8 is mounted on the cover plate 9. The motor 7 is mounted on the cover plate 9 via the bracket 8. The mounting of the motor 7 on the cover plate 9 via the bracket 8 ensures the stability of the motor 7 during operation. The bracket 8 serves as a support structure for the motor 7, capable of bearing the weight of the motor 7 and the vibrations generated during operation, thus preventing the motor 7 from being affected by shaking or vibration and thus ensuring its normal operation. The bracket 8 securely mounts the motor 7 onto the cover plate 9, ensuring its normal operation and improving the overall performance of the equipment. Stable operation of the motor 7 reduces failure rates and downtime, improving production efficiency and quality. The motor 7 is connected to the auger 15. A sleeve 14 is mounted inside the material cylinder 10 via a second retainer 13. The auger 15 is rotatably mounted inside the sleeve 14. A discharge pipe 1 is located at the bottom of the material cylinder 10, with a gap between the discharge pipe 1 and the sleeve 14. When the raw material in the material cylinder 10 is stirred, it enters the auger 15 through the gap between the discharge pipe 1 and the sleeve 14. The auger 15 and the sleeve 14 work together to lift and stir the raw material within the material cylinder 10. The design of the auger 15 and the sleeve 14 ensures that the raw material can be effectively lifted and stirred within the material cylinder 10. The rotational motion of the auger 15 not only propels the flow of raw materials but also achieves shearing, compression, and mixing of the materials through the shape and arrangement of its blades, thereby improving mixing efficiency. Through the gap between the discharge pipe 1 and the sleeve 14, raw materials can continuously enter the auger 15 for mixing. This design ensures uniform distribution and thorough mixing of raw materials within the barrel 10, avoiding accumulation and waste, and improving material utilization. The tight fit between the auger 15 and the sleeve 14 reduces dead zones during mixing. Driven by the auger 15, the raw materials continuously change position and state, thus avoiding material retention and uneven mixing problems that may occur in traditional mixing methods. When raw materials are discharged from the barrel 10, they enter the auger 15 through the gap between the discharge pipe 1 and the sleeve 14, and are discharged from the discharge pipe 1 through the interaction between the auger 15 and the discharge pipe 1. When raw materials need to be discharged from the barrel 10, they enter the auger 15 through the gap between the discharge pipe 1 and the sleeve 14.The rotational motion of the auger 15 ensures a continuous and stable discharge of raw materials from the discharge pipe 1, avoiding material blockage or poor flow problems that may occur in traditional feeding methods. Due to the close cooperation between the auger 15 and the discharge pipe 1, the raw materials can quickly pass through the discharge pipe 1 under the push of the auger 15. This design significantly improves discharge efficiency, enabling the equipment to complete a large number of feeding tasks in a short time. Through the cooperation between the auger 15 and the discharge pipe 1, the raw materials can be fully pushed and squeezed during the discharge process, thus avoiding material residue in the material cylinder 10 or the discharge pipe 1. This helps reduce material waste and ensures the cleanliness and hygiene of the equipment. A magnetic coupler 11 is installed at the top of the auger 15.

[0040] Example 2

[0041] To facilitate the operation of the auger 15 and ensure that the agent is evenly sprayed onto the surface of the raw material, for example, such as Figures 1 to 4 As shown, the present invention further includes: a reducer 6 installed at the output end of the motor 7, the reducer 6 being connected to a magnetic coupler 11, and the motor 7 being magnetically coupled to the auger 15 via the magnetic coupler 11 of the reducer 6, thereby driving the auger 15 through the motor 7; a medicine box 5 installed on the cover plate 9 on one side of the motor 7, the medicine box 5 having a conduit 501; a liquid storage box 3 installed above the magnetic coupler 11 of the reducer 6; and a conduit 5 of the medicine box 5. A nozzle 302 is inserted into the liquid storage box 3. An atomizing nozzle 302 and a water pump 301 are both installed at the bottom of the liquid storage box 3. The water pumps 301 are evenly distributed on the bottom surface of the liquid storage box 3, with two atomizing nozzles 302 arranged symmetrically on either side of each other. This even distribution of the water pumps 301 ensures uniform pressure of the liquid agent drawn from the liquid storage box 3, resulting in uniform droplet size from the atomizing nozzles 302. This uniform spraying effect contributes to the even distribution of the agent on the raw material, improving the sterilization effect. Because the atomizing nozzles 302 can produce tiny droplets, these droplets can adhere more effectively to the surface of the raw material, thereby improving the utilization rate of the agent. Furthermore, the evenly distributed atomizing nozzles 302 ensure extensive coverage of the agent within the container 10, reducing agent waste. The atomized agent particles can more easily penetrate into the tiny gaps in the raw material, thus more effectively killing bacteria, viruses, and other microorganisms. In addition, due to the small and evenly distributed droplets, the sterilization effect is more significant, improving overall production efficiency and product quality.

[0042] Working principle:

[0043] When mixing and conveying raw materials are required, motor 7 is started first. The output end of motor 7 is connected to magnetic coupler 11 via reducer 6. Magnetic coupler 11 uses magnetic principle to transmit the power of motor 7 to auger 15 without contact. This magnetic coupling transmission method avoids the leakage and wear problems of traditional transmission methods, improving transmission efficiency and reliability. Magnetic coupler 11 drives auger 15 to rotate inside sleeve 14. The blades of auger 15 lift the raw materials from the bottom of cylinder 10 upwards, mixing and stirring them during the lifting process. When the raw materials need to be discharged, they re-enter auger 15 through the gap between discharge pipe 1 and sleeve 14. The rotation of auger 15 pushes the raw materials smoothly out of discharge pipe 1.

[0044] A bactericide or other chemical agent is stored in the agent container 5. The agent is delivered to the storage container 3 through the conduit 501. The water pump 301 is started, and the water pump 301 draws out the agent from the storage container 3. The drawn-out agent is atomized through the atomizing nozzle 302. The atomizing nozzle 302 uses high-pressure gas or mechanical principles to spray the agent into tiny particles. The atomized agent particles are evenly sprayed onto the raw material in the material cylinder 10. The agent comes into full contact with the raw material, killing bacteria, viruses, and other microorganisms.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] 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. A feeding mechanism for softened injection molding compound with a spray sterilization device, comprising a barrel (10), wherein an auger (15) is rotatably mounted inside the barrel (10) via a first retainer (12), a cover plate (9) is mounted on the top of the barrel (10), a flip cover (4) is rotatably mounted on the cover plate (9) via a hinge, and a motor (7) is mounted on the cover plate (9), wherein the motor (7) is drively connected to the auger (15), characterized in that: The sleeve (14) is mounted inside the material cylinder (10) by a second retainer (13). The auger (15) is rotatably installed inside the sleeve (14). The bottom end of the material cylinder (10) is provided with a discharge pipe (1), and there is a gap between the discharge pipe (1) and the sleeve (14). The top end of the auger (15) is equipped with a magnetic coupler (11). A speed reducer (6) is installed at the output end of the motor (7). The speed reducer (6) is connected to the magnetic coupler (11) for transmission. The motor (7) is magnetically coupled to the magnetic coupler (11) of the auger (15) through the magnetic coupler (11) of the speed reducer (6), thereby driving the auger (15) through the motor (7). A medicine box (5) is installed on the cover plate (9) on one side of the motor (7). A conduit (501) is provided on the medicine box (5). A liquid storage box (3) is installed above the magnetic coupler (11) of the speed reducer (6). The conduit (501) of the medicine box (5) extends into the liquid storage box (3). An atomizing nozzle (302) is installed at the bottom of the liquid storage box (3).

2. The softening injection molding feeding mechanism with a spray sterilization device according to claim 1, characterized in that: When the raw material in the material cylinder (10) is stirred, the raw material enters the auger (15) through the gap between the discharge pipe (1) and the sleeve (14), and the raw material is lifted and stirred in the material cylinder (10) by the cooperation between the auger (15) and the sleeve (14).

3. The softening injection molding feeding mechanism with a spray sterilization device according to claim 1, characterized in that: When the raw material in the cylinder (10) is discharged, the raw material enters the auger (15) through the gap between the discharge pipe (1) and the sleeve (14), and the auger (15) and the discharge pipe (1) cooperate with each other to discharge the material from the discharge pipe (1).

4. The softening injection molding feeding mechanism with a spray sterilization device according to claim 1, characterized in that: A water pump (301) is installed at the bottom of the liquid storage box (3). The water pump (301) is evenly distributed on the bottom surface of the liquid storage box (3), and two atomizing nozzles (302) are symmetrically distributed on both sides of the water pump (301).

5. The softening injection molding feeding mechanism with a spray sterilization device according to claim 1, characterized in that: A bracket (8) is installed on the cover plate (9), and the motor (7) is mounted on the cover plate (9) via the bracket (8).

6. The softening injection molding feeding mechanism with a spray sterilization device according to claim 1, characterized in that: The outer side of the material cylinder (10) is provided with a support frame (2), and the material cylinder (10) is supported on the plane by the support frame (2).

Citation Information

Patent Citations

  • Plastic part injection molding feeding mechanism with exhaust structure

    CN221136791U