High-precision optical element low-degradation process processing device
By designing an optical element processing device with multi-stage exhaust channels connected to a vacuum pump, the problem of gas generation during the molding of optical infrared windows was solved, achieving low-degradation molding and high-efficiency production.
Patent Information
- Application Number
- CN202520006829.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2035-01-03
Smart Images
Figure CN223604922U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to optical element exhaust technology field, concretely relates to a high accuracy optical element low degradation process processing device. BACKGROUND
[0002] With the development of society, the new energy automobile industry is growing, the demand of unmanned is increasing, the research and development of laser radar is a big trend in the future, the current unmanned technology is being fully laid out, and the safety of driving is guaranteed. The forming and appearance of the optical laser radar window are extremely strict, so the appearance of the product is extremely important in injection molding, which is beneficial to the infrared sensing distance precision of the laser radar window after assembly, and improves the effectiveness of detection. However, the raw material of the optical infrared window is very easy to produce gas, which causes white fog on the appearance and affects the light spot, which directly increases the cost waste in the production process of the product, so the staff needs to frequently maintain the mold core in the production process, the production cost is high, the operation steps are many, and multiple operators are needed to meet the production rhythm of the product. SUMMARY
[0003] The utility model discloses a high accuracy optical element low degradation process processing device.
[0004] The utility model provides the following technical scheme:
[0005] The utility model discloses a high accuracy optical element low degradation process processing device, including fixed module, fixed in the fixed module's fixed mould insert and fixed mould insert, movable mould insert and fixed on movable mould insert, the fixed mould insert is in fixed mould insert, movable mould insert, movable mould insert with fixed mould insert, fixed mould insert and fixed mould insert are matched with a cavity for injection, the side wall of fixed mould insert and fixed mould insert is symmetrically avoided and has a multistage exhaust passage, the fixed module is provided with the external connection channel of the multistage exhaust passage intercommunication, the end of external connection channel passes through the outer wall of fixed module, and is used for connecting with external vacuum pump.
[0006] Further, the end of the external connection channel is a PT1 / 4 tooth hole for connecting with the vacuum pump.
[0007] Further, the multistage exhaust passage includes sequentially connected first exhaust passage, second exhaust passage and third exhaust passage, the first exhaust passage is directly contacted and communicated with the cavity, and the third exhaust passage is directly contacted and communicated with the external connection channel.
[0008] Further, the depth of the first exhaust passage is 0.025mm, and the width is 2mm.
[0009] Further, the depth of the secondary exhaust passage is 0.08mm, and the width is 4mm.
[0010] Compared with the prior art, the outer connecting passage of the device is connected with the vacuum pump to realize a low-degradation forming process of the optical-grade infrared-transparent window, reduce the gas quality problem of the product surface, reduce the manufacturing cost of the enterprise, and improve the market competitiveness. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a cross-sectional structure schematic view of the utility model.
[0012] Figure 2 It is an enlarged schematic view of A.
[0013] Figure 3 It is an enlarged schematic view of B.
[0014] In the figure, 00 is a cavity, 01 is an injection molding passage, 1 is a fixed mold block, 2 is a fixed mold insert, 3 is a fixed mold insert part, 4 is a movable mold insert, 5 is a movable mold insert part, 6 is a multi-stage exhaust passage, 61 is a primary exhaust passage, 62 is a secondary exhaust passage, 63 is a tertiary exhaust passage, 7 is an outer connecting passage, 70 is the end of the outer connecting passage, and 8 is a vacuum pump. DETAILED DESCRIPTION
[0015] The utility model will be further described below in combination with the drawings.
[0016] Reference Figure 1 In an embodiment of the utility model, a high-precision optical element low-degradation process machining device comprises a fixed mold block 1, a fixed mold insert 2 and a fixed mold insert part 3 fixed in the fixed mold block 1, a movable mold insert 4 and a movable mold insert part 5 fixed on the movable mold insert 4, the fixed mold insert part 3 is in the fixed mold insert 2, the movable mold insert 4, the movable mold insert part 5 and the fixed mold insert 2, the fixed mold insert part 3 have a cavity 00 for injection molding in cooperation with the fixed mold insert 2, the fixed mold insert part 3 and the fixed mold insert 2 are symmetrically avoided on the side wall of the fixed mold insert 2 and have a pair of multi-stage exhaust passages 6, the fixed mold block 1 is provided with an outer connecting passage 7 in communication with the multi-stage exhaust passage 6, the end 70 of the outer connecting passage penetrates the outer wall of the fixed mold block 1 and is used for being connected with an external vacuum pump, the fixed mold block and the fixed mold insert part further have an injection molding passage (prior art) in communication with the cavity 00, in actual application, the external vacuum pump is connected with the outer connecting passage 7, the external injection molding gun head utilizes the injection molding passage 01 to injection mold the cavity 00, the vacuum pump is opened and the gas in the cavity 00 is extracted through the multi-stage exhaust groove 6 and the outer connecting passage 7, after the injection molding of the finished product is completed, the movable mold insert 4 and the movable mold insert part 5 are removed by a mechanical arm, and then the product is taken out (prior art).
[0017] Referring to Figure 1 In an embodiment of the present application, the end 70 of the external passage is a PT1 / 4 tooth hole for connecting with the vacuum pump, facilitating the connection of the air exhaust pipe of the vacuum pump.
[0018] Referring to Figure 2 In an embodiment of the present application, the multi-stage exhaust passage 6 comprises a first-stage exhaust passage 61, a second-stage exhaust passage 62 and a third-stage exhaust passage 63 connected in sequence, the first-stage exhaust passage 61 is in direct contact and communication with the cavity 00, the third-stage exhaust passage 63 is in direct contact and communication with the external passage 7, the multi-stage design prevents glue overflow and ensures that the gas in the cavity 00 can be taken away during vacuum air exhaust.
[0019] Referring to Figure 3 In the above embodiment, the depth (perpendicular to the plane) of the first-stage exhaust passage 61 (the cross section is rectangular) is 0.025mm, and the width d1 is 2mm; preventing the material from entering the first-stage exhaust groove 61 to cause blockage and material overflow. Figure 3
[0020] Referring to Figure 3 In the above embodiment, the depth (perpendicular to the plane) of the second-stage exhaust passage 62 (the cross section is rectangular) is 0.08mm, and the width d2 is 4mm; during air exhaust, the exhaust volume is increased to make the air exhaust of the first-stage exhaust groove 61 more smooth, and prevent glue overflow. Figure 3
[0021] In actual application, the external vacuum pump is connected with the external passage 7, and the gas in the cavity 00 is exhausted through the multi-stage exhaust groove 6 and the external passage 7 after the vacuum pump is turned on.
[0022] The embodiments of the present application are given for the purpose of illustration and description, although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.
Claims
1. A high-precision optical element low-degradation process machining device, comprising a fixed mold module, a fixed mold insert fixed in the fixed mold module, a movable mold insert fixed on a movable mold insert, and a movable mold insert fixed on the movable mold insert, the fixed mold insert being in the fixed mold insert; the movable mold insert, the movable mold insert and the fixed mold insert, the fixed mold insert have a cavity for injection molding, characterized in that: The side wall matched with the fixed mold block is symmetrically avoided from a pair of multi-stage exhaust passages, and an external connecting passage is arranged on the fixed mold block and communicated with the multi-stage exhaust passages; the end of the external connecting passage penetrates the outer wall of the fixed mold block and is used for being connected with an external vacuum pump.
2. The high-precision optical element low-degradation process machining device according to claim 1, characterized in that: The end of the external connecting passage is a PT1 / 4 tooth hole used for being connected with the vacuum pump.
3. The high-precision optical element low-degradation process machining device according to claim 1, characterized in that: The multi-stage exhaust passage comprises a first-stage exhaust passage, a second-stage exhaust passage and a third-stage exhaust passage which are sequentially communicated; the first-stage exhaust passage is directly contacted and communicated with the cavity; and the third-stage exhaust passage is directly contacted and communicated with the external connecting passage.
4. The high-precision optical element low-degradation process machining device according to claim 3, characterized in that: The depth of the first-stage exhaust passage is 0.025 mm, and the width is 2 mm.
5. The high precision optical element low degradation process machining apparatus of claim 3, wherein: The depth of the second-stage exhaust passage is 0.08 mm, and the width is 4 mm.