CN210415286U - Nozzle structure of mold - Google Patents

Abstract

A nozzle structure of a mold comprises a nozzle body, wherein a feeding channel and a temperature control flow channel are integrally formed in the nozzle body. The feeding channel comprises a feeding port, a discharging port and a conveying channel communicated between the feeding port and the discharging port. The temperature control flow channel comprises a liquid inlet, a liquid outlet and a fluid channel communicated between the liquid inlet and the liquid outlet, wherein the fluid channel is arranged along the periphery of the conveying channel.

Description

Nozzle structure of mold

Technical Field

This creation is about a irritate mouth structure, especially indicates a mould irritates mouth structure.

Background

The mold is a common manufacturing apparatus in the industry at present, and generally, a mold cavity corresponding to the shape of the product is formed inside the mold, and a workpiece with certain plasticity or fluidity is injected into the mold cavity and cooled to form a molded product with the same shape as the mold cavity.

Generally, the injection of the work material into the mold cavity is mostly achieved by a filling nozzle, which has a material injection passage for communicating with the mold cavity, and the work material can flow into the mold cavity for the subsequent process after entering the material injection passage from the outside. However, the temperature difference between the work material and the nozzle body is usually a certain value, which causes the work material to enter the material injection channel and contact the nozzle body to generate temperature variation, thereby affecting the dimensional accuracy of the molded product.

SUMMERY OF THE UTILITY MODEL

In view of the above, in one embodiment, a mold nozzle structure is provided, which includes a nozzle body, and a material feeding channel and a temperature control channel are integrally formed in the nozzle body. The feeding channel comprises a feeding port, a discharging port and a conveying channel communicated between the feeding port and the discharging port. The temperature control flow channel comprises a liquid inlet, a liquid outlet and a fluid channel communicated between the liquid inlet and the liquid outlet, wherein the fluid channel is arranged along the periphery of the conveying channel.

In one embodiment, the fluid channel of the temperature control flow channel is a spiral channel, and the spiral channel surrounds the conveying channel of the material feeding channel.

In one embodiment, one end of the spiral channel is closer to the discharge hole.

In one embodiment, the nozzle body includes a shaft, the feeding channel axially penetrates the shaft, and the fluid channel of the temperature control channel is located inside the shaft.

In one embodiment, the nozzle body includes an annular body integrally extending from the periphery of the shaft, and the liquid inlet and the liquid outlet of the temperature-controlled flow passage are disposed on the annular body.

In one embodiment, the liquid inlet and the liquid outlet of the temperature-controlled flow passage are respectively located at two opposite sides of the axial column of the nozzle body.

In one embodiment, a material guiding groove is disposed at an end of the shaft of the nozzle body near the material inlet, and the material guiding groove is communicated with the material inlet of the material feeding channel.

In one embodiment, the size of the outlet of the inlet channel is larger than the size of the inlet.

In summary, the mold nozzle structure of the present invention can precisely control the temperature of the nozzle body and the material feeding channel by controlling the temperature of the liquid in the temperature control flow channel, so as to keep the temperature of the material entering the material feeding channel at a predetermined temperature, thereby ensuring the size of the molded product to meet the expectation and improving the product quality. In addition, the feeding channel and the temperature control flow channel are integrally formed inside the filling nozzle body, and compared with an assembled filling nozzle, a water stopping structure (such as a rubber or silica gel sealing ring) is not required to be arranged inside the filling nozzle body, and the filling nozzle body is not easy to deform in the temperature change process.

Drawings

FIG. 1 is a perspective view of an embodiment of a nozzle structure of the present mold.

FIG. 2 is a cross-sectional view of an embodiment of the nozzle structure of the present invention.

Detailed Description

Fig. 1 is a perspective view of an embodiment of the nozzle structure of the mold of the present invention, and fig. 2 is a sectional view of the embodiment of the nozzle structure of the mold of the present invention. As shown in fig. 1 and 2, the nozzle structure 1 of the present invention can be installed on a mold to inject a plastic or fluid material (e.g., molten material) into the mold.

As shown in fig. 1 and 2, the mold nozzle structure 1 includes a nozzle body 10, and in some embodiments, the nozzle body 10 may be made of a metal material, such as brass, aluminum alloy or other metals. The inlet channel 20 and the temperature control channel 30 are integrally formed inside the nozzle body 10, that is, the nozzle body 10 of the present embodiment is a single-piece structure rather than an assembled structure, for example, the nozzle body 10, the inlet channel 20 and the temperature control channel 30 can be integrally formed by a mold.

As shown in fig. 1 and fig. 2, the feeding channel 20 is used for injecting a work material, in the embodiment, the feeding channel 20 includes a feeding port 21, a discharging port 22 and a conveying channel 23 communicating between the feeding port 21 and the discharging port 22, when the filling nozzle structure 1 is installed in a mold, the discharging port 22 of the feeding channel 20 can be communicated with a mold cavity of the mold, and after the work material is injected from the feeding port 21, the work material can flow out of the discharging port 22 through the conveying channel 23 and enter the mold cavity of the mold, so as to perform a subsequent molding operation.

As shown in fig. 1 and fig. 2, the temperature control flow channel 30 and the material inlet channel 20 are not communicated with each other, and the temperature control flow channel 30 includes a liquid inlet 31, a liquid outlet 32 and a fluid channel 33 communicated between the liquid inlet 31 and the liquid outlet 32, wherein the fluid channel 33 is disposed along the periphery of the conveying channel 23 of the material inlet channel 20. For example, in the present embodiment, the fluid channel 33 is a spiral channel surrounding the conveying channel 23 of the feeding channel 20 and surrounding the periphery of the conveying channel 23, but the present embodiment is not limited thereto, and in other embodiments, the fluid channel 33 may be a channel with other shapes (such as a cylinder or a cone).

As shown in fig. 1 and 2, the temperature control channel 30 can introduce liquid to control the temperature of the workpiece injected from the material inlet channel 20, so as to accurately control the dimensional accuracy of the molded product. Specifically, if the work material is not kept at a predetermined temperature when entering the cavity of the mold, the dimension of the molded product is affected, and it is more desirable to avoid the occurrence of the problem in the case of a molded product (e.g., an optical lens) requiring a precise dimension.

For example, since the temperature of the nozzle body 10 is different from the temperature of the work material, such as the work material is mostly in a molten state and exceeds 100 ℃, the temperature of the nozzle body 10 depends on the temperature of the environment where the nozzle body is placed, and thus there is generally a considerable temperature difference between the work material and the nozzle body 10. Therefore, before the work material is injected from the material inlet channel 20, the present embodiment can introduce a hot liquid (e.g. hot water or hot oil) from the liquid inlet 31 of the temperature-controlled flow channel 30 and flow out from the liquid outlet 32 through the fluid channel 33 to preheat the nozzle body 10, for example, the temperature of the nozzle body 10 and the material inlet channel 20 is close to or consistent with the temperature of the work material, so as to precisely control the work material entering from the material inlet channel 20 to be kept at a desired temperature, thereby ensuring the size of the formed product to meet the desired requirement and improving the product quality. Furthermore, the fluid channel 33 is disposed along the outer periphery of the conveying channel 23, so as to accelerate the temperature of the feeding channel 20 to reach the desired temperature.

In addition, the material feeding channel 20 and the temperature control flow channel 30 are integrally formed inside the nozzle body 10, and compared to an assembled nozzle, the nozzle body 10 of the present embodiment does not need to have a water stop structure (such as a rubber or silicone sealing ring), and the nozzle body 10 is not easily deformed during the temperature variation process. In detail, since the nozzle body 10 is a one-piece structure, there is no tolerance in assembly, thereby preventing mutual extrusion deformation of a plurality of components due to temperature variation and eliminating assembly processes.

In some embodiments, as shown in fig. 1 and 2, the temperature-controlled flow passage 30 can also be used for cooling the nozzle body 10. For example, after the work material is injected into the cavity of the mold and cooled to form a molded product, the cooling liquid can be introduced from the liquid inlet 31 of the temperature controlled flow channel 30 and flow out from the liquid outlet 32 through the fluid channel 33, so as to accelerate cooling of the nozzle body 10 and enable smooth demolding of the molded product, thereby achieving the advantage of greatly saving the manufacturing time.

In some embodiments, as shown in fig. 1 and fig. 2, after the external liquid is introduced from the liquid inlet 31 of the temperature-controlled flow channel 30 and flows out from the liquid outlet 32 through the fluid channel 33, the liquid flowing out can be repeatedly introduced into the liquid inlet 31 to achieve a circulation effect, or after the external liquid is introduced from the liquid inlet 31 of the temperature-controlled flow channel 30, the external liquid can be left in the fluid channel 33 for a while and is not discharged, which is not limited.

As shown in fig. 1 and 2, the nozzle body 10 includes a shaft 11 and a ring 12, in this embodiment, the shaft 11 is a cylinder, but this is not limited thereto, and the shaft 11 may also be a cylinder with other shapes (such as square, trapezoid or oval, etc.), depending on the mold used for the nozzle body 10, which is not limited thereto. The annular body 12 extends integrally (in this case, extends radially) from the periphery of the shaft post 11, in this embodiment, the annular body 12 is located between two ends of the shaft post 11, that is, a part of the section of the shaft post 11 protrudes from one side of the annular body 12, and the other section of the shaft post 11 protrudes from the other side of the annular body 12, so that the cross-section of the nozzle body 10 is formed, but this is not limited, and the cross-section of the nozzle body 10 may also be T-shaped or other shapes.

As shown in FIGS. 1 and 2, the inlet channel 20 extends axially through the shaft 11, and the fluid channel 33 of the temperature-controlled flow channel 30 is located inside the shaft 11 and adjacent to the delivery channel 23 of the inlet channel 20. In the present embodiment, the fluid channel 33 is a spiral channel and one end of the fluid channel 33 is adjacent to the discharge port 22, so as to ensure that the work material is maintained at a predetermined temperature when being discharged from the discharge port 22 to the mold.

As shown in fig. 1 and fig. 2, in the embodiment, the liquid inlet 31 and the liquid outlet 32 of the temperature control flow channel 30 are disposed on the annular body 12, and the liquid inlet 31 and the liquid outlet 32 are respectively located at two opposite sides of the axial column 11, but this is not limited thereto, and the liquid inlet 31 and the liquid outlet 32 may also be disposed at other portions (e.g., on the axial column 11) according to different requirements.

In some embodiments, as shown in fig. 1 and fig. 2, the size of the discharge port 22 of the material inlet channel 20 is larger than that of the material injection port 21, that is, the inner diameter of the conveying channel 23 is gradually increased from the material injection port 21 to the discharge port 22 (the conveying channel 23 is in a tapered shape), so that the flow path of the work material can be smoother and the occurrence of blockage can be avoided.

In some embodiments, as shown in fig. 2, a material guiding groove 111 is disposed at an end of the shaft 11 of the nozzle body 10 close to the injection port 21 of the material feeding channel 20, and the material guiding groove 111 is communicated with the injection port 21, so that the work material can be injected into the material guiding groove 111 and then flow into the conveying channel 23 from the injection port 21, so as to prevent the work material from overflowing. In addition, in the embodiment, the aperture of the material guiding groove 111 is larger than the aperture of the material filling opening 21, and the aperture of the material guiding groove 111 gradually decreases toward the material filling opening 21, so that the work material can be more conveniently filled and can be quickly guided into the material filling opening 21.

In summary, the mold nozzle structure of the present invention can precisely control the temperature of the nozzle body 10 and the material feeding channel 20 by controlling the temperature of the liquid in the temperature control flow channel 30, so as to keep the temperature of the work material entering the material feeding channel 20 at a predetermined temperature, thereby ensuring the size of the molded product to meet the expectation and improving the product quality. In addition, the feeding channel 20 and the temperature control flow channel 30 are integrally formed inside the nozzle body 10, and compared with an assembled nozzle, no water stop structure (such as a rubber or silicone sealing ring) is required to be arranged inside the nozzle body 10, and the nozzle body 10 is not easily deformed in the process of temperature change.

Although the present disclosure has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made without departing from the spirit and scope of the disclosure as defined by the appended claims.

Description of the symbols

1 mould pours mouth structure

10 pouring nozzle body

11 axle post

111 material guiding groove

12 Ring body

20 feeding channel

21 injection port

22 discharge hole

23 conveying channel

30 temperature control runner

31 liquid inlet

32 liquid outlet

33 fluid passage.

Claims (8)

1. A mold nozzle structure comprising: a irritate mouth body, should irritate the inside an organic whole of mouth body and be formed with a pan feeding passageway and a temperature control runner, this pan feeding passageway includes a sprue, a discharge gate and communicates a transfer passage between this sprue and this discharge gate, this temperature control runner includes a income liquid mouth, a liquid outlet and communicates a fluid passage between this income liquid mouth and this liquid outlet, wherein this fluid passage is along the configuration of this transfer passage's periphery.

2. The nozzle structure of claim 1, wherein the fluid passage is a spiral passage surrounding the delivery passage.

3. The nozzle structure of claim 2, wherein an end of the spiral channel is adjacent to the outlet.

4. The nozzle structure of claim 1, wherein the nozzle body comprises a shaft, the inlet channel axially extends through the shaft, and the fluid channel of the temperature-controlled flow channel is located inside the shaft.

5. The nozzle structure of claim 4, wherein the nozzle body comprises an annular body integrally extending from the periphery of the stem, the liquid inlet and the liquid outlet of the temperature-controlled flow passage being disposed on the annular body.

6. The nozzle structure of claim 5, wherein the liquid inlet and the liquid outlet are located on opposite sides of the axial column.

7. The nozzle structure of claim 4, wherein a material guiding groove is disposed at an end of the shaft near the injection port, and the material guiding groove is connected to the injection port.

8. The mold nozzle structure of claim 1, wherein the size of the outlet is larger than the size of the inlet.

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