Feeding auxiliary device of injection molding machine

By combining a servo motor-driven rotating rod with a cleaning scraper, a spiral conveyor rod, and striking rubber balls, the sticking and clogging problems in the plastic conveying process are solved, achieving efficient material conveying and cleaning, and improving the production efficiency and finished product quality of the injection molding machine.

CN223532886UActive Publication Date: 2025-11-11TIANJIN MINGAO BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422819049.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2025-11-11
Estimated Expiration
2034-11-19

AI Technical Summary

Technical Problem

In existing technologies, plastics are prone to sticking and clogging injection molding machines during the conveying process, leading to cleaning difficulties and material waste, especially for liquid or powdered raw materials, and requiring multiple power sources to drive them.

Method used

The system uses a servo motor-driven rotating rod and a cleaning scraper in conjunction with a spiral conveyor rod, along with striking rubber balls and conveying blades, to achieve the mixing and conveying of liquid or powdered raw materials. The cleaning scraper removes adhering materials to prevent blockages.

Benefits of technology

The simplified mechanical structure reduces the failure rate, improves raw material utilization, reduces cleaning difficulty and material waste, ensures uniform mixing and flowability of materials, and avoids clogging problems.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a feeding auxiliary device of an injection molding machine, which relates to the technical field of feeding of injection molding machines and comprises a discharging barrel, one end of the discharging barrel is fixedly connected with a fixed support, the lower end of the discharging barrel is fixedly connected with a conveying main body shell, and one side of the upper end of the fixed support is fixedly connected with a servo motor. The output end of the servo motor is fixedly connected with a rotating rod, the other end of the rotating rod is fixedly connected with a rotating rod, the outer side, close to the discharging barrel, of the rotating rod is fixedly connected with a cleaning scraper support, the four ends of the cleaning scraper support are fixedly connected with cleaning scrapers, and the cleaning scrapers and the side wall of the discharging barrel are used in a matched mode. After liquid or powdery raw materials are poured into a discharging barrel, a servo motor at the upper end of a fixed support is started, the servo motor drives a rotating rod to rotate, and the rotating rod drives a spiral material conveying rod to stir the liquid or powdery raw materials and convey the liquid or powdery raw materials into a material conveying main body shell at the lower end; the rotating rod rotates and drives the cleaning scraper support to rotate at the same time.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding machine feeding technology, specifically an injection molding machine feeding auxiliary device. Background Technology

[0002] The feeding device is responsible for uniformly conveying plastic granules or powder into the heating cylinder of the injection molding machine, ensuring a stable material supply during the injection molding process. During the feeding process, the material can be preheated or dried, which helps improve the flowability and molding performance of the plastic, thereby improving the quality of the finished product. A well-designed feeding system helps prevent the material from being contaminated during the conveying process, thus ensuring the quality of the product. Feeding plays a crucial role in the injection molding process, affecting not only production efficiency but also directly related to the quality of the finished product.

[0003] The above-mentioned utility model has the following problems:

[0004] In existing technologies, when plastics are transported in liquid or powder form during the injection molding process, they tend to stick to the inside of the injection molding machine, resulting in material residue. Furthermore, the inlet of the injection molding machine is prone to blockage when using materials with larger particles or poor flowability. Cleaning the sticky or blocked rubber increases the difficulty and time cost of cleaning, and requires multiple power sources to operate.

[0005] Therefore, those skilled in the art have provided a feeding auxiliary device for injection molding machines to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to provide a feeding auxiliary device for injection molding machines to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A feeding auxiliary device for an injection molding machine includes a feeding hopper. A fixed bracket is fixedly connected to one end of the feeding hopper, and a material conveying body shell is fixedly connected to the lower end of the feeding hopper. A servo motor is fixedly connected to one side of the upper end of the fixed bracket, and a rotating rod is fixedly connected to the output end of the servo motor. A rotating rod is fixedly connected to the other end of the rotating rod.

[0009] As a further embodiment of this utility model: a cleaning scraper bracket is fixedly connected to the outer side of the rotating rod near the discharge bucket, and a cleaning scraper is fixedly connected to each of the four ends of the cleaning scraper bracket. The cleaning scraper and the side wall of the discharge bucket cooperate with each other.

[0010] As a further embodiment of this utility model: a driven rod is rotatably connected to one side of the upper wall of the fixed bracket, a driving roller is fixedly connected to the rotating rod near the servo motor, a driven roller is fixedly connected to one side of the driven rod, and the other end of the driven rod is rotatably connected to the bottom wall of the material conveying body shell.

[0011] As a further embodiment of this utility model: a belt is fitted on the outer side of the driving roller, the other end of the belt is fitted on the outer side of the driven roller, the other end of the driven rod is rotatably connected to the bottom wall of the material conveying body shell, and a fixing member is fixedly connected to the outer side of the driven rod near the lower end of the discharge hopper.

[0012] As a further embodiment of this utility model: telescopic spring rods are fixedly connected to both ends of the fixing member, and a striking rubber ball is fixedly connected to the other end of the telescopic spring rods. A material conveying port is opened on the inner side of the material conveying body shell near the material discharge bucket, and a transmission rod is rotatably connected through the material conveying body shell near the material conveying port.

[0013] As a further embodiment of this utility model: a first bevel gear is fixedly connected to the outer side of the driven rod near the transmission rod, a second bevel gear is fixedly connected to the end of the transmission rod near the first bevel gear, the first bevel gear and the second bevel gear are meshed with each other, and a conveying blade is fixedly connected to the outer side of the transmission rod near the material inlet.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention uses a servo motor to drive the cleaning scraper and spiral conveyor rod in the feeding hopper to rotate, which in turn drives the striking rubber ball and conveying blades to rotate. A single power source drives the injection molding machine's feeding auxiliary device, reducing mechanical complexity, lowering the failure rate, and facilitating maintenance and management. The spiral conveyor rod effectively agitates liquid or powdered raw materials and smoothly conveys them to the main conveying body. The cleaning scraper bracket, working in conjunction with the cleaning scraper, removes raw materials adhering to the side walls of the feeding hopper, ensuring higher material utilization and reducing waste. The striking rubber ball effectively loosens raw materials adhering to the hopper wall, improving material flowability and preventing blockages. The spiral blades effectively agitate liquid or powdered raw materials during rotation, ensuring uniform mixing and preventing sedimentation or stratification. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a feeding auxiliary device for an injection molding machine.

[0017] Figure 2 This is a cross-sectional view of the material discharge hopper in a feeding auxiliary device for an injection molding machine.

[0018] Figure 3This is a schematic diagram of the cleaning scraper in a feeding auxiliary device for an injection molding machine.

[0019] Figure 4 This is a schematic diagram of the outer shell of the material conveying body in a feeding auxiliary device for an injection molding machine.

[0020] In the diagram: 1. Feeding bucket, 2. Fixed bracket, 3. Servo motor, 4. Rotating rod, 5. Spiral conveyor rod, 6. Cleaning scraper bracket, 7. Cleaning scraper, 8. Driven rod, 9. Driving roller, 10. Driven roller, 11. Belt, 12. Conveying body shell, 13. Fixing component, 14. Telescopic spring rod, 15. Striking rubber ball, 16. Feeding port, 17. Transmission rod, 18. First bevel gear, 19. Second bevel gear, 20. Conveying blade. Detailed Implementation

[0021] 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.

[0022] Example 1

[0023] Reference Figure 1 , 2 3. This embodiment provides a feeding auxiliary device for an injection molding machine, including a feeding hopper 1. A fixed bracket 2 is fixedly connected to one end of the feeding hopper 1. A conveying body shell 12 is fixedly connected to the lower end of the feeding hopper 1. A servo motor 3 is fixedly connected to one side of the upper end of the fixed bracket 2. A rotating rod 4 is fixedly connected to the output end of the servo motor 3. A rotating rod 4 is fixedly connected to the other end of the rotating rod 4. A cleaning scraper bracket 6 is fixedly connected to the outer side of the rotating rod 4 near the feeding hopper 1. Cleaning scrapers 7 are fixedly connected to all four ends of the cleaning scraper bracket 6. The scraper 7 and the side wall of the discharge bucket 1 work together. After the liquid or powdered raw material is poured into the discharge bucket, the servo motor at the upper end of the fixed bracket is started. The servo motor drives the rotating rod to rotate. The rotating rod drives the spiral conveyor rod to stir the liquid or powdered raw material and transport it to the lower conveyor body shell. At the same time, the rotating rod drives the cleaning scraper bracket to rotate. The cleaning scraper bracket drives the cleaning scrapers at the four ends to continue to clean and scrape the liquid or powdered raw material adhering to the side wall of the discharge bucket, and drives it to move downward.

[0024] Example 2

[0025] Reference Figure 1 , 24. This embodiment is based on the previous embodiment, but differs in that a driven rod 8 is rotatably connected to the upper wall of one side of the fixed bracket 2, a driving roller 9 is fixedly connected to the rotating rod 4 near the servo motor 3, a driven roller 10 is fixedly connected to the outer side of one end of the driven rod 8, and the other end of the driven rod 8 is rotatably connected to the bottom wall of the material conveying body shell 12. A belt 11 is sleeved on the outer side of the driving roller 9, and the other end of the belt 11 is sleeved on the outer side of the driven roller 10. The other end is rotatably connected to the bottom wall of the conveying body shell 12. A fixing member 13 is fixedly connected to the outer side of the driven rod 8 near the lower end of the discharge hopper 1. Telescopic spring rods 14 are fixedly connected to both ends of the fixing member 13. A striking rubber ball 15 is fixedly connected to the other end of the telescopic spring rod 14. A conveying port 16 is opened on the inner side of the conveying body shell 12 near the discharge hopper 1. A transmission rod 17 is rotatably connected to the conveying body shell 12 near the conveying port 16. The outer side of the driven rod 8 near the transmission rod 17 is fixedly connected to... A first bevel gear 18 is connected to a transmission rod 17, and a second bevel gear 19 is fixedly connected to one end of the transmission rod 17 near the first bevel gear 18. The first bevel gear 18 and the second bevel gear 19 are meshed with each other. A conveying blade 20 is fixedly connected to the outer side of the transmission rod 17 near the conveying port 16. When the rotating rod rotates, it drives the driving roller to rotate, which drives the belt to rotate. The belt drives the driven roller to rotate, which drives the driven rod to rotate. The driven rod drives the fixed part to rotate, which drives the telescopic spring rods at both ends to rotate. The telescopic spring rods drive the striking rubber to strike the lower end of the discharge bucket. The striking rubber can effectively loosen the raw material adhering to the bucket wall, increase its fluidity, and promote the smooth discharge of the raw material. At the same time, the first bevel gear near the lower end of the driven rod drives the second bevel gear to rotate, which drives the transmission rod to rotate. The transmission rod drives the conveying blade to rotate at the conveying port, which drives the material to flow out smoothly from the conveying port.

[0026] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] 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 auxiliary device for an injection molding machine, comprising a feeding hopper (1), characterized in that, One end of the feeding hopper (1) is fixedly connected to a fixed bracket (2), the lower end of the feeding hopper (1) is fixedly connected to a conveying body shell (12), one side of the upper end of the fixed bracket (2) is fixedly connected to a servo motor (3), the output end of the servo motor (3) is fixedly connected to a rotating rod (4), the other end of the rotating rod (4) is fixedly connected to a spiral conveying rod (5), the outer side of the rotating rod (4) is fixedly connected to a cleaning scraper bracket (6) near the feeding hopper (1), and all four ends of the cleaning scraper bracket (6) are fixedly connected to cleaning scrapers (7). The cleaning scrapers (7) and the side wall of the feeding hopper (1) cooperate with each other. A driven rod (8) is rotatably connected to the upper wall of one side of the fixed bracket (2). A driving roller (9) is fixedly connected to the rotating rod (4) near the servo motor (3). A driven roller (10) is fixedly connected to the outer side of one end of the driven rod (8). The other end of the driven rod (8) is rotatably connected to the bottom wall of the material conveying body shell (12). A belt (11) is sleeved on the outer side of the driving roller (9). The other end of the belt (11) is sleeved on the outer side of the driven roller (10). The driven rod (8) is fixedly connected to a fixing member (13) on the outer side of the lower end of the feeding bucket (1). The two ends of the fixing member (13) are fixedly connected to a telescopic spring rod (14), and the other end of the telescopic spring rod (14) is fixedly connected to a striking rubber ball (15).

2. The feeding auxiliary device for an injection molding machine according to claim 1, characterized in that, The material conveying body shell (12) has a material conveying port (16) on the inner side near the material discharge bucket (1), and a transmission rod (17) is rotatably connected through the material conveying body shell (12) near the material conveying port (16).

3. The feeding auxiliary device for an injection molding machine according to claim 1, characterized in that, The driven rod (8) is fixedly connected to the outer side of the transmission rod (17) with a first bevel gear (18), and the transmission rod (17) is fixedly connected to the end of the first bevel gear (18) with a second bevel gear (19). The first bevel gear (18) and the second bevel gear (19) are meshed with each other.

4. The feeding auxiliary device for an injection molding machine according to claim 3, characterized in that, The transmission rod (17) is fixedly connected to the outer side near the feed inlet (16) with a feed blade (20).