Multi-color injection molding hot runner structure

Abstract

The utility model discloses a multicolor injection molding hot runner structure which comprises a runner hot nozzle, a power device is fixedly connected to the upper surface of the hot runner hot nozzle, a rotating shaft is fixedly connected to the output end of the power device, a scraping plate is fixedly connected to the end, away from the power device, of the rotating shaft, and a supporting plate is arranged in the hot runner hot nozzle. Leak holes are formed in the supporting plate, a rotating motor is fixedly connected to the lower surface of the supporting plate, a power shaft is fixedly connected to the output end of the rotating motor, and stirring blades are fixedly connected to the end, away from the rotating motor, of the power shaft. By means of the structure, the scraping effect is achieved when plastic enters the hot runner hot nozzle, the situation that the plastic is blocked on the supporting plate, normal use is affected, the plastic is stirred, and the interior of the hot runner hot nozzle is dredged is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of hot runner molds, in particular to a multi-color injection hot runner structure. Background Art

[0002] The existing multi-color injection hot runner structure is a heating component system that injects melted plastic into the mold cavity. For example, the Chinese patent discloses "a multi-color injection hot runner structure", and its application number is "CN202021175590.9". By setting a color-changing valve in the color-changing device and using a motor to drive the color-changing valve to rotate, different feed pipes can be switched to connect with the injection pipe, thereby controlling different colors of sol to enter the injection pipe to participate in injection molding. By setting a return table at the lower end of the valve needle, the plastic solidified at the hot nozzle can be promptly recovered into the injection pipe after each product is injected to continue heating and melting for use in injecting the next product. However, during its use, it is easy to cause plastic blockage, affecting the use effect. Utility Model Content

[0003] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art and to provide a multi-color injection hot runner structure. By arranging a support plate, a motor and a scraper inside the hot runner nozzle, the plastic can be scratched when entering the hot runner nozzle, thereby preventing it from being blocked on the support plate and affecting normal use. By arranging a rotating motor and a stirring blade inside the hot runner nozzle, the plastic can be stirred and the inside of the hot runner nozzle can be cleared.

[0004] The present invention also provides a multi-color injection hot runner structure as mentioned above, including: a hot runner nozzle, the upper surface of the hot runner nozzle is fixedly connected to a power device, the output end of the power device is fixedly connected to a rotating shaft, the end of the rotating shaft away from the power device is fixedly connected to a scraper, a support plate is provided inside the hot runner nozzle, a leakage hole is provided inside the support plate, the lower surface of the support plate is fixedly connected to a rotating motor, the output end of the rotating motor is fixedly connected to a power shaft, and the end of the power shaft away from the rotating motor is fixedly connected to a stirring blade. Through the above device, the effect of scratching the plastic when it enters the hot runner nozzle is achieved, preventing it from being blocked on the support plate, affecting normal use and stirring of the plastic, and clearing the hot runner nozzle.

[0005] According to the multi-color injection hot runner structure described in the utility model, a hot nozzle is fixedly connected to the lower surface of the hot runner nozzle, and a shaping mold is fixedly connected to the lower surface of the hot nozzle.

[0006] According to the multi-color injection hot runner structure described in the utility model, a protective shell is fixedly connected to the lower surface of the support plate, and the rotating motor is inside the protective shell. The above device is used to protect the rotating motor.

[0007] According to the multi-color injection hot runner structure described in the utility model, the lower surface of the protective shell is fixedly connected to a support rod and a heating wire. The support rod is inside the heating wire. Through the above device, the melted plastic in the hot runner nozzle can continue to be heated.

[0008] According to the multi-color injection hot runner structure described in the utility model, a feed hole is provided inside the hot runner nozzle, and a No. 1 feed pipe and a No. 2 feed pipe are provided inside the feed hole. Through the above device, multiple plastics can enter the hot runner nozzle.

[0009] According to the multi-color injection hot runner structure described in the utility model, valves are provided on the No. 1 feed pipe and the No. 2 feed pipe. Through the above devices, the cutoff and circulation of plastic can be controlled.

[0010] According to the multi-color injection hot runner structure described in the utility model, dust covers are fixedly connected to the upper surfaces of the No. 1 feed pipe and the No. 2 feed pipe, and threaded sleeves are provided at the parts where the dust covers are fixedly connected to the No. 1 feed pipe and the No. 2 feed pipe. Through the above device, a dust-proof effect is achieved when the machine is not in use.

[0011] According to the multi-color injection hot runner structure described in the utility model, the power device is a motor, and the output end of the motor is fixedly connected to the rotating shaft. Through the above device, the effect of providing power to the rotating shaft is achieved. Beneficial effects

[0012] Compared with the existing technology, this multi-color injection hot runner structure, by arranging a support plate, a motor and a scraper inside the hot runner nozzle, can achieve the effect of scratching the plastic when it enters the hot runner nozzle, preventing it from being blocked on the support plate and affecting normal use; by arranging a rotating motor and a stirring blade inside the hot runner nozzle, the plastic can be stirred and the hot runner nozzle can be unblocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is the main structure diagram of the multi-color injection hot runner structure of the utility model;

[0015] Figure 2 This is a left-side cross-sectional view of the multi-color injection hot runner structure of the utility model;

[0016] Figure 3 This is a right-side sectional view of the multi-color injection hot runner structure of the utility model.

[0017] Legend:

[0018] 1. Shaping mold; 2. Hot nozzle; 3. Hot runner nozzle; 4. Motor; 5. Scraper; 6. Support plate; 7. Leak hole; 8. Rotating motor; 9. Protective shell; 10. Power shaft; 11. Stirring blade; 12. Support rod; 13. Heating wire; 14. Feed hole; 15. Feed pipe No. 1; 16. Feed pipe No. 2; 17. Valve; 18. Rotating shaft; 19. Dust cover; 20. Threaded sleeve. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0020] Reference Figure 1-3 , the utility model embodiment of a multi-color injection hot runner structure, which includes: a hot runner nozzle 3, the upper surface of the hot runner nozzle 3 is fixedly connected to a power device, the power device provides power, the output end of the power device is fixedly connected to a rotating shaft 18, the rotating shaft 18 drives the scraper 5 to move, the rotating shaft 18 is fixedly connected to the end away from the power device, the scraper 5 scratches the plastic blocked on the support plate 6, a support plate 6 is provided inside the hot runner nozzle 3, the support plate 6 carries the plastic entering the hot runner nozzle 3, the support plate 6 is provided with a leakage hole 7, the leakage hole 7 causes the plastic to fall, the lower surface of the support plate 6 is fixedly connected to a rotating motor 8, the rotating motor 8 provides power, the output end of the rotating motor 8 is fixedly connected to a power shaft 10, the power shaft 10 drives the stirring blade 11 to rotate, and the end of the power shaft 10 away from the rotating motor 8 is fixedly connected to the stirring blade 11, the stirring blade 11 clears the inside of the hot runner nozzle 3.

[0021] The hot runner nozzle 3 is fixedly connected to the bottom surface of the nozzle 2, which is also fixedly connected to the molding mold 1. A protective shell 9 is fixedly connected to the bottom surface of the support plate 6. This shell protects the rotating motor 8, which is located inside the protective shell 9. A support rod 12 and a heating wire 13 are fixedly connected to the bottom surface of the protective shell 9. The support rod 12 has the heating wire 13 mounted on it, which continuously heats the inside of the hot runner nozzle 3. The support rod 12 is located inside the heating wire 13. A feed hole 14 is provided inside the hot runner nozzle 3, allowing plastic to enter the nozzle 3. Feed hole 14 contains a first feed pipe 15 and a second feed pipe 16, which can inject plastics of different colors. Feed pipes 15 and 16 are each equipped with a valve 17, which controls the amount of plastic entering the nozzle 3. Dust covers 19 are fixedly connected to the upper surfaces of feed pipes 15 and 16. Dust covers 19 can prevent dust from falling when the device is not in use. The parts where dust covers 19 are fixedly connected to feed pipes 15 and 16 have threaded sleeves 20, which ensure a tight connection between feed pipes 15 and 16. The power device is a motor 4, which provides power. The output end of motor 4 is fixedly connected to rotating shaft 18, which provides power to rotating shaft 18.

[0022] Working principle: When in use, open the dust cover 19 and pour plastics of different colors into the No. 1 feed pipe 15 and the No. 2 feed pipe 16. The valve 17 can be opened in the order of need to allow plastics of different colors to enter the hot runner nozzle 3 from the feed hole 14. At the same time, the motor 4 and the rotating motor 8 are started. The motor 4 drives the scraper 5 to scrape the plastic blocked on the support plate 12. The plastic falling from the leak hole 7 is stirred inside by the stirring blade 11 driven by the rotating motor 8. The No. 1 feed pipe 15, the No. 2 feed pipe 16 and the hot runner nozzle 3 are all equipped with heating wires 13 to heat the internal plastic to keep it in a molten state, and finally enter the shaping mold 1 through the hot nozzle 2.

[0023] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A multi-color injection hot runner structure, characterized in that: include: A hot runner nozzle (3) is provided, wherein the upper surface of the hot runner nozzle (3) is fixedly connected to a power device, the output end of the power device is fixedly connected to a rotating shaft (18), the end of the rotating shaft (18) away from the power device is fixedly connected to a scraper (5), a support plate (6) is provided inside the hot runner nozzle (3), a leak hole (7) is provided inside the support plate (6), a rotating motor (8) is fixedly connected to the lower surface of the support plate (6), the output end of the rotating motor (8) is fixedly connected to a power shaft (10), and the end of the power shaft (10) away from the rotating motor (8) is fixedly connected to a stirring blade (11).

2. A multi-color injection hot runner structure according to claim 1, characterized in that: The lower surface of the hot runner nozzle (3) is fixedly connected to a hot nozzle (2), and the lower surface of the hot nozzle (2) is fixedly connected to a shaping mold (1).

3. The multi-color injection hot runner structure according to claim 1, characterized in that: A protective shell (9) is fixedly connected to the lower surface of the support plate (6), and the rotating motor (8) is inside the protective shell (9).

4. The multi-color injection hot runner structure according to claim 3, characterized in that: A support rod (12) and a heating wire (13) are fixedly connected to the lower surface of the protective shell (9), and the support rod (12) is inside the heating wire (13).

5. The multi-color injection hot runner structure according to claim 1, characterized in that: A feed hole (14) is provided inside the hot runner nozzle (3), and a first feed pipe (15) and a second feed pipe (16) are provided inside the feed hole (14).

6. The multi-color injection hot runner structure according to claim 5, characterized in that: The No. 1 feed pipe (15) and the No. 2 feed pipe (16) are provided with valves (17).

7. The multi-color injection hot runner structure according to claim 5, characterized in that: A dust cover (19) is fixedly connected to the upper surfaces of the No. 1 feed pipe (15) and the No. 2 feed pipe (16), and a threaded sleeve (20) is provided at the portion where the dust cover (19) is fixedly connected to the No. 1 feed pipe (15) and the No. 2 feed pipe (16).

8. The multi-color injection hot runner structure according to claim 1, characterized in that: The power device is a motor (4), and the output end of the motor (4) is fixedly connected to a rotating shaft (18).

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