Inclined hole eccentric needle valve hot runner

Abstract

The utility model relates to the technical field of part casting, and discloses an inclined hole eccentric needle valve hot runner which comprises a top plate and a fixing plate arranged on one side of the top plate, an eccentric needle valve assembly used for casting a mold is arranged on one side of the fixing plate, and an inclined hole assembly used for rapidly changing the color of the casting mold is arranged in the top plate. A heating groove is formed in one side of the fixing plate. The eccentric needle valve assembly comprises a nozzle body, a heater and locking sleeves, wherein the nozzle body is arranged in the heating groove, one end of the nozzle body penetrates through the fixing plate, the nozzle body is sleeved with the heater, and the two ends of the heater are sleeved with the locking sleeves. By arranging the eccentric needle valve assembly and the inclined hole assembly, part casting can be conducted on the mold through the eccentric needle valve assembly, when the color needs to be changed, a new material can be injected into the eccentric needle valve assembly through the inclined hole assembly, the color of the part can be changed, and therefore the color of the part can be conveniently changed.

Description

Technical Field

[0001] The utility model relates to the technical field of parts casting, in particular to a hot runner of an oblique hole eccentric needle valve. Background Art

[0002] Currently, a hot runner with an inclined hole and eccentric needle valve is a specially designed hot runner system. Its characteristic is that the needle valve is designed with an inclined hole and eccentricity. This design may help to more accurately control the flow of the melt and achieve more complex injection molding process requirements. However, the specific design details and advantages of the inclined hole and eccentricity may vary depending on the manufacturer and application scenario.

[0003] A casting mold is disclosed in the Chinese utility model patent with the announcement number CN215090512U. Although the above-mentioned prior art makes it easier to fix the casting fluid and form and the castings easier to separate, some parts may have different colors due to customer needs. In this way, multiple additional operations are required during the casting process of the parts, which makes the casting process complicated and affects the casting efficiency. Therefore, it is necessary to design a hot runner with an inclined hole and an eccentric needle valve. Utility Model Content

[0004] In order to solve the technical problem that it is inconvenient to change the color of a casting part during the casting process, the utility model provides a hot runner with an oblique hole and an eccentric needle valve.

[0005] The utility model is implemented by the following technical solutions: a hot runner with an inclined hole and an eccentric needle valve, comprising a top plate and a fixed plate arranged on one side of the top plate, one side of the fixed plate being provided with an eccentric needle valve assembly for a casting mold, the interior of the top plate being provided with an inclined hole assembly for quickly changing the color of the casting mold, a heating groove being provided on one side of the fixed plate, the eccentric needle valve assembly comprising a nozzle body arranged inside the heating groove and one end passing through the fixed plate, a heater mounted on the nozzle body and locking sleeves mounted on both ends of the heater, the inclined hole assembly comprising a flow channel plate arranged inside the heating groove, a main nozzle mounted on one side of the flow channel plate and a positioning ring mounted on one end of the main nozzle, a flow channel groove connected to the main nozzle being provided inside the flow channel plate, and an inclined hole connected to the flow channel groove being provided on one side of the nozzle body.

[0006] Through the above technical solution, parts can be cast using the eccentric needle valve assembly. When the color needs to be changed, the color of the cast parts can be changed by simply adding new material into the eccentric needle valve assembly using the inclined hole assembly.

[0007] As a further improvement of the above solution, a mounting hole is provided on the flow channel plate, a connecting block is installed on the top of the nozzle body, a thread is provided on the outer surface of the connecting block, and the nozzle body is threadedly connected to the flow channel plate through the connecting block.

[0008] Through the above technical solution, the connection between the nozzle body and the flow channel plate can ensure that the nozzle body and the auxiliary nozzle are concentric.

[0009] As a further improvement of the above solution, a casting trough is provided on the top plate, an auxiliary nozzle is provided inside the casting trough, a valve needle is connected to the nozzle body, and one end of the valve needle passes through the mounting hole and extends to the inside of the auxiliary nozzle.

[0010] Through the above technical solution, the auxiliary nozzle injects material to allow the nozzle body to cast parts.

[0011] As a further improvement of the above solution, a first positioning groove is provided on the flow channel plate, an auxiliary positioning pin is fixedly installed on the top of the nozzle body, and one end of the auxiliary positioning pin extends into the first positioning groove.

[0012] Through the above technical solution, the auxiliary positioning pins can assist in fixing the nozzle body on the flow channel plate.

[0013] As a further improvement of the above solution, one end of the nozzle body is provided with a diverter lock, and one end of the diverter lock is provided with a nozzle head sealing cap in contact with the nozzle body.

[0014] Through the above technical solution, the diverter lock is in close contact with the nozzle body, which increases the thermal conductivity of the diverter lock. The nozzle sealing cap is in contact with the diverter lock and the nozzle body at the same time, ensuring strength while preventing leakage.

[0015] As a further improvement of the above solution, a second positioning groove is opened on one side of the inner wall of the heating groove, and a center positioning pin is fixedly installed on the bottom of the flow channel plate, and one end of the center positioning pin extends into the second positioning groove.

[0016] Through the above technical solution, the central positioning pin can assist in positioning and fixing the flow channel plate.

[0017] As a further improvement of the above solution, a thermocouple for measuring the temperature of the flow channel plate is provided inside the heating tank.

[0018] Through the above technical solution, the thermocouple can measure the temperature of the flow channel plate.

[0019] As a further improvement of the above solution, a plurality of support columns are fixedly mounted on the bottom of the flow channel plate, and one end of each of the support columns is fixedly mounted to the inner wall of the heating tank.

[0020] Through the above technical solution, the support column can support and fix the flow channel plate.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The utility model provides an eccentric needle valve assembly and an oblique hole assembly, and the eccentric needle valve assembly can be used to cast parts in a mold. When the color needs to be changed, new material only needs to be injected into the eccentric needle valve assembly through the oblique hole assembly to change the color of the part. This arrangement can facilitate the change of the color of the part. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front perspective structural diagram of the utility model;

[0024] Figure 2 This is a perspective structural diagram of an eccentric needle valve assembly of the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the utility model with a heater perspective;

[0026] Figure 4 This is a perspective view of the structure of the utility model from above.

[0027] Description of main symbols:

[0028] 1. Top plate; 2. Fixed plate; 301. Nozzle body; 302. Heater; 303. Locking sleeve; 401. Flow channel plate; 402. Main nozzle; 403. Positioning ring; 5. Heating tank; 6. Connecting block; 7. Auxiliary nozzle; 8. Valve needle; 9. Diverter lock; 10. Nozzle sealing cap; 11. Auxiliary positioning pin; 12. Center positioning pin; 13. Thermocouple; 14. Support column. DETAILED DESCRIPTION

[0029] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0030] Please combine Figure 1-Figure 4The present embodiment of the present invention relates to a hot runner with an inclined hole and an eccentric needle valve, comprising a top plate 1 and a fixed plate 2 disposed on one side of the top plate 1. An eccentric needle valve assembly for a casting mold is disposed on one side of the fixed plate 2. An inclined hole assembly for rapidly changing the color of the casting mold is disposed within the top plate 1. A heating groove 5 is disposed on one side of the fixed plate 2. The eccentric needle valve assembly comprises a nozzle body 301 disposed within the heating groove 5 and having one end extending through the fixed plate 2. A heater 302 is sleeved on the nozzle body 301. Locking sleeves 303 are sleeved on both ends of the heater 302. The inclined hole assembly includes a flow channel plate 401 arranged inside the heating tank 5, a main nozzle 402 installed on one side of the flow channel plate 401 and a positioning ring 403 installed at one end of the main nozzle 402. The flow channel plate 401 has a flow channel groove connected to the main nozzle 402 inside, and the nozzle body 301 has an inclined hole connected to the flow channel groove on one side. The eccentric needle valve assembly can be used to cast parts. When the color needs to be changed, the color of the cast part can be changed by simply adding new material to the eccentric needle valve assembly using the inclined hole assembly.

[0031] Combine Figure 1 、 Figure 2 and Figure 4 , a mounting hole is provided on the flow channel plate 401, a connecting block 6 is installed on the top of the nozzle body 301, and a thread is provided on the outer surface of the connecting block 6, and the nozzle body 301 is threadedly connected to the flow channel plate 401 through the connecting block 6, a casting groove is provided on the top plate 1, and a secondary nozzle 7 is provided inside the casting groove, and a valve needle 8 is connected to the nozzle body 301, one end of the valve needle 8 passes through the mounting hole and extends to the inside of the secondary nozzle 7, and a first positioning groove is provided on the flow channel plate 401, and an auxiliary positioning pin 11 is fixedly installed on the top of the nozzle body 301, and one end of the auxiliary positioning pin 11 extends to the inside of the first positioning groove, and one end of the nozzle body 301 is sleeved with a diverter lock 9, and one end of the diverter lock 9 is provided with a nozzle head sealing cap 10 in contact with the nozzle body 301, and the diverter lock 9 is in close contact with the nozzle body 301 to increase the thermal conductivity of the diverter lock 9, and the nozzle head sealing cap 10 is in contact with the diverter lock 9 and the nozzle body 301 at the same time to ensure strength while preventing leakage.

[0032] Combine Figure 1 A second positioning groove is provided on one side of the inner wall of the heating tank 5, and a center positioning pin 12 is fixedly installed on the bottom of the flow channel plate 401. One end of the center positioning pin 12 extends into the second positioning groove. A thermocouple 13 for measuring the temperature of the flow channel plate 401 is provided inside the heating tank 5. A plurality of support columns 14 are fixedly installed on the bottom of the flow channel plate 401, and one end of the plurality of support columns 14 are fixedly installed on the inner wall of the heating tank 5. The center positioning pin 12 can assist in the positioning and fixation of the flow channel plate 401.

[0033] The implementation principle of an inclined hole eccentric needle valve hot runner in the embodiment of the present application is: the casting mold is installed on one side of the nozzle body 301, and the material is fed into the auxiliary nozzle 7, and the nozzle body 301 can be used to cast parts. When the color needs to be changed, the material is injected into the main nozzle 402 to allow the material to enter the flow channel groove of the flow channel plate 401. The material enters the inclined hole of the nozzle body 301 through the flow channel groove. The material entering the inclined hole will enter the mold through the nozzle body 301, thereby changing the color. This setting can facilitate changing the color of the parts.

[0034] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A hot runner with an inclined hole and an eccentric needle valve, comprising a top plate (1) and a fixed plate (2) arranged on one side of the top plate (1), characterized in that: An eccentric needle valve assembly for a casting mold is provided on one side of the fixed plate (2), an inclined hole assembly for quickly changing the color of the casting mold is provided inside the top plate (1), a heating groove (5) is provided on one side of the fixed plate (2), the eccentric needle valve assembly comprises a nozzle body (301) arranged inside the heating groove (5) and one end of which passes through the fixed plate (2), a heater (302) sleeved on the nozzle body (301), and locking sleeves (303) sleeved on both ends of the heater (302), the inclined hole assembly comprises a flow channel plate (401) arranged inside the heating groove (5), a main nozzle (402) mounted on one side of the flow channel plate (401), and a positioning ring (403) mounted on one end of the main nozzle (402), a flow channel groove connected to the main nozzle (402) is provided inside the flow channel plate (401), and an inclined hole connected to the flow channel groove is provided on one side of the nozzle body (301).

2. The oblique hole eccentric needle valve hot runner according to claim 1, characterized in that: A mounting hole is provided on the flow channel plate (401), a connecting block (6) is installed on the top of the nozzle body (301), a thread is provided on the outer surface of the connecting block (6), and the nozzle body (301) is threadedly connected to the flow channel plate (401) via the connecting block (6).

3. The oblique hole eccentric needle valve hot runner according to claim 1, characterized in that: A casting groove is provided on the top plate (1), an auxiliary nozzle (7) is provided inside the casting groove, a valve needle (8) is connected to the nozzle body (301), and one end of the valve needle (8) passes through the mounting hole and extends to the inside of the auxiliary nozzle (7).

4. The oblique hole eccentric needle valve hot runner according to claim 1, characterized in that: A first positioning groove is provided on the flow channel plate (401), and an auxiliary positioning pin (11) is fixedly mounted on the top of the nozzle body (301), with one end of the auxiliary positioning pin (11) extending into the interior of the first positioning groove.

5. The oblique hole eccentric needle valve hot runner according to claim 1, characterized in that: One end of the nozzle body (301) is sleeved with a diverter lock (9), and one end of the diverter lock (9) is provided with a nozzle head sealing cap (10) connected to the nozzle body (301).

6. The oblique hole eccentric needle valve hot runner according to claim 1, characterized in that: A second positioning groove is provided on one side of the inner wall of the heating groove (5), and a center positioning pin (12) is fixedly mounted on the bottom of the flow channel plate (401), with one end of the center positioning pin (12) extending into the second positioning groove.

7. The oblique hole eccentric needle valve hot runner according to claim 1, characterized in that: A thermocouple (13) for measuring the temperature of the flow channel plate (401) is provided inside the heating tank (5).

8. The oblique hole eccentric needle valve hot runner according to claim 1, characterized in that: A plurality of support columns (14) are fixedly mounted on the bottom of the flow channel plate (401), and one end of each of the plurality of support columns (14) is fixedly mounted on the inner wall of the heating tank (5).

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