Reflector optical mold core drainage and exhaust structure

Abstract

The utility model discloses a reflector optical mold core drainage and exhaust structure which comprises a mold frame, a first mold core, a mold core and a second mold core are arranged in the mold frame, the mold core is located between the first mold core and the second mold core, drainage channels are arranged in the first mold core and the mold frame, a first external connection groove is formed in one side of the mold frame, and a second external connection groove is formed in the other side of the mold frame. The first external groove is communicated with the drainage channel, an air extractor is arranged at the tail end of the first external groove, exhaust channels are arranged in the second mold core and the mold frame, a second external groove is formed in the other side of the mold frame, the second external groove is communicated with the exhaust channels, and an air extractor is also arranged at the tail end of the second external groove. According to the utility model, water vapor is discharged out of the mold from the drainage channel and the first external groove by using the sucking pump, and gas is discharged out of the mold from the exhaust groove, the exhaust channel and the second external groove by using the sucking pump, so that the water vapor is effectively prevented from entering the cavity, the problem of air trapping of the reflector mold is solved, and the production yield is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reflectors, in particular to a water drainage and exhaust structure of an optical mold core of a reflector. Background Art

[0002] In order to ensure the surface shape of the reflector mold, a separate water channel needs to be set up in the optical area, and high mold temperature and high material temperature processes are usually used during injection molding.

[0003] The water channel of high-temperature optical mold core often seeps water. The high-temperature water forms water vapor and enters the cavity, which will pollute the optical surface and cause product defects. The surface of the reflector product is mirror polished. When there is trapped air during injection molding, there will be pitting, white fog and other defects on the surface of the product, which affects the yield. The existing technology is to open the vent from the parting surface, which has limited effect and cannot completely avoid the problem of trapped air. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a reflector optical core drainage and exhaust structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A reflector optical mold core drainage and exhaust structure comprises a mold frame, wherein a first mold core, a mold core and a second mold core are arranged in the mold frame, the mold core is located between the first mold core and the second mold core, a drainage channel is arranged in the first mold core and the mold frame, a first external groove is arranged on one side of the mold frame, the first external groove is connected to the drainage channel, and an air suction device is arranged at the end of the first external groove, an exhaust channel is arranged in the second mold core and the mold frame, a second external groove is arranged on the other side of the mold frame, the second external groove is connected to the exhaust channel, and an air suction device is also arranged at the end of the second external groove, a plurality of water channels are arranged in the mold core and the mold frame, a drainage groove is arranged on one side of the mold core, the drainage groove is connected to the water channel, and the drainage groove is connected to the drainage channel, an exhaust groove is arranged on the other side of the mold core, the exhaust groove is connected to the exhaust channel, and exhaust holes are arranged around the top of the mold core.

[0007] Furthermore, the depth of the drainage groove is 0.5 mm.

[0008] Furthermore, the air extraction device is specifically an air extraction pump.

[0009] Furthermore, the width of the exhaust groove is 4-5 mm, and the height of the exhaust groove is 1.5-2 mm.

[0010] Furthermore, the depth of the exhaust groove is 0.5 mm.

[0011] Furthermore, a water channel plug is provided at one end of the drainage groove.

[0012] The beneficial effects of the utility model are:

[0013] 1. By using a vacuum pump to discharge water vapor from the drainage channel and the first external groove to the outside of the mold, and then using a vacuum pump to discharge gas from the exhaust groove, the exhaust channel and the second external groove to the outside of the mold, water vapor is effectively prevented from entering the cavity and the problem of air entrapment in the reflector mold is solved, thereby improving the production yield.

[0014] 2. The water channel plug is provided in the drain trough, so that the drain trough can be cleaned conveniently and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a planar cross-sectional structure of a reflector optical core drainage and exhaust structure proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the enlarged structure of point A of a reflector optical core drainage and exhaust structure proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the enlarged structure of the B position of a reflector optical core drainage and exhaust structure proposed by the utility model;

[0018] Figure 4 A schematic diagram of the structure of one side of a core of a reflector optical core drainage and exhaust structure proposed by the utility model;

[0019] Figure 5 This is a schematic diagram of the enlarged structure of the C position of a reflector optical core drainage and exhaust structure proposed by the utility model;

[0020] Figure 6 A schematic diagram of the structure of the other side of a core of a reflector optical core drainage and exhaust structure proposed by the utility model;

[0021] Figure 7 This is a schematic diagram of the enlarged structure at D of a reflector optical core drainage and exhaust structure proposed by the utility model.

[0022] In the figure: 1. mold frame; 2. first mold core; 3. second mold core; 4. mold core; 5. drainage channel; 6. first external groove; 7. exhaust channel; 8. second external groove; 9. water channel; 10. drainage groove; 11. exhaust groove; 12. exhaust hole; 13. water channel plug. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-Figure 7 A reflector optical mold core drainage and exhaust structure comprises a mold frame 1, wherein a first mold core 2, a mold core 4 and a second mold core 3 are arranged in the mold frame 1, the mold core 4 is located between the first mold core 2 and the second mold core 3, a drainage channel 5 is arranged in the first mold core 2 and the mold frame 1, a first external groove 6 is arranged on one side of the mold frame 1, the first external groove 6 is communicated with the drainage channel 5, and an exhaust device is arranged at the end of the first external groove 6, an exhaust channel 7 is arranged in the second mold core 3 and the mold frame 1, a second external groove 8 is arranged on the other side of the mold frame 1, the second external groove 8 is communicated with the exhaust channel 7, and an exhaust device is also arranged at the end of the second external groove 8, the mold core 4 is arranged in the middle of the first mold core 2 and the second mold core 3, a drainage channel 5 is arranged in the first mold core 2 and the mold frame 1, a first external groove 6 is arranged on one side of the mold frame 1, the first external groove 6 is communicated with the exhaust channel 7, and an exhaust device is also arranged at the end of the second external groove 8, A plurality of water channels 9 are provided inside the mold frame 1, a drainage groove 10 is provided on one side of the mold core 4, the drainage groove 10 is connected with the water channel 9, the drainage groove 10 is connected with the drainage channel 5, the mold core 4 is cooled through the water channel 9, and then the water vapor seeping out of the water channel plug 13 enters the drainage groove 10, and then the water vapor is discharged from the drainage channel 5 and the first external groove 6 to the outside of the mold by a vacuum pump, an exhaust groove 11 is provided on the other side of the mold core 4, the exhaust groove 11 is connected with the exhaust channel 7, exhaust holes 12 are provided around the top of the mold core 4, and a vacuum pump is used to discharge the gas from the exhaust groove 11, the exhaust channel 7 and the second external groove 8 to the outside of the mold.

[0025] The depth of the drain groove 10 is 0.5mm, the exhaust device is specifically an exhaust pump, the width of the exhaust groove 11 is 4-5mm, the height of the exhaust groove 11 is 1.5-2mm, the depth of the exhaust groove 11 is 0.5mm, and a water channel plug 13 is provided at one end of the drain groove 10 to facilitate cleaning of the drain groove 10.

[0026] Working principle: When in use, first, the core 4 is cooled through the water channel 9, and then the water vapor seeping out of the water channel plug 13 enters the drainage groove 10, and then the vacuum pump is used to discharge the water vapor from the drainage channel 5 and the first external groove 6 to the outside of the mold, and then the vacuum pump is used to discharge the gas from the exhaust groove 11, the exhaust channel 7 and the second external groove 8 to the outside of the mold.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A reflector optical core drainage and exhaust structure, comprising a mold frame (1), characterized in that: The mold frame (1) is provided with a first mold core (2), a mold core (4) and a second mold core (3), the mold core (4) is located between the first mold core (2) and the second mold core (3), a drainage channel (5) is provided in the first mold core (2) and the mold frame (1), a first external groove (6) is provided on one side of the mold frame (1), the first external groove (6) is connected to the drainage channel (5), an exhaust device is provided at the end of the first external groove (6), an exhaust channel (7) is provided in the second mold core (3) and the mold frame (1), and a second external groove (6) is provided on the other side of the mold frame (1). An external groove (8), the second external groove (8) is connected to the exhaust channel (7), and the end of the second external groove (8) is also provided with an exhaust device. A plurality of water channels (9) are provided in the mold core (4) and the mold frame (1). A drainage groove (10) is provided on one side of the mold core (4), the drainage groove (10) is connected to the water channel (9), and the drainage groove (10) is connected to the drainage channel (5). An exhaust groove (11) is provided on the other side of the mold core (4), and the exhaust groove (11) is connected to the exhaust channel (7). Exhaust holes (12) are provided around the top of the mold core (4).

2. A reflector optical core drainage and exhaust structure according to claim 1, characterized in that: The depth of the drainage groove (10) is 0.5 mm.

3. A reflector optical core drainage and exhaust structure according to claim 1, characterized in that: The air extraction device is specifically an air extraction pump.

4. A reflector optical core drainage and exhaust structure according to claim 1, characterized in that: The width of the exhaust groove (11) is 4-5 mm, and the height of the exhaust groove (11) is 1.5-2 mm.

5. The reflector optical core drainage and exhaust structure according to claim 1, characterized in that: The depth of the exhaust groove (11) is 0.5 mm.

6. A reflector optical core drainage and exhaust structure according to claim 1, characterized in that: A water channel plug (13) is provided at one end of the drainage groove (10).

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