Precise PDMS mold

Abstract

The utility model provides a precise PDMS (polydimethylsiloxane) mould, which comprises an adjusting base and a mould body, the mould body is adjustably arranged in the adjusting base, a silicon wafer is arranged in the mould body, an insert pin is arranged at the top of the mould body, micrometers are arranged on the periphery of the adjusting base, and the silicon wafer is arranged in the mould body. And the micrometer is used for adjusting and aligning the aperture position of the silicon wafer. According to the utility model, the precision and yield of PDMS products can be effectively improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a precision PDMS mold. Background Art

[0002] For traditional PDMS products, punching is carried out after PDMS is formed, and a puncher is used to open holes in the product. The following defects mainly exist:

[0003] 1. Manual alignment punching will result in defects such as low precision, deviation, pore diameter deformation, and hole wall cutting marks.

[0004] 2. The shape is limited. Generally, only circular holes are available on the market at present. Content of the Utility Model

[0005] The main purpose of the utility model is to provide a precision PDMS mold, aiming to improve the precision and yield of PDMS products and reduce production costs.

[0006] To achieve the above purpose, the utility model provides a precision PDMS mold, including: an adjustment base and a mold body. The mold body is adjustably arranged in the adjustment base. A silicon wafer is arranged in the mold body. A dowel pin is arranged at the top of the mold body. Micrometers are arranged around the adjustment base, and the micrometers are used to adjust and align the pore diameter position of the silicon wafer.

[0007] A further technical solution of the utility model is that the mold body includes a first lower mold, a second lower mold, a cover plate and an upper mold. The first lower mold is adjustably arranged in the adjustment base. The second lower mold is adjustably arranged on the first lower mold. The silicon wafer is arranged on the second lower mold. The cover plate is covered on the silicon wafer. The upper mold is arranged on the cover plate. The dowel pin is arranged on the upper mold.

[0008] A further technical solution of the utility model is that a first adjustment chute is arranged at the bottom of the first lower mold, and a first slide rail corresponding to the first adjustment chute is arranged at the bottom of the adjustment base.

[0009] A further technical solution of the utility model is that a second adjustment chute is arranged at the top of the first lower mold, and a second slide rail corresponding to the second adjustment chute is arranged at the bottom of the second lower mold.

[0010] A further technical solution of the utility model is that a pouring port is opened on one side of the cover plate.

[0011] The beneficial effects of the precision PDMS mold of the utility model are:

[0012] 1. The utility model has common interchangeability. By replacing the cover plate and the upper die, it can be adapted to products with different thicknesses and different structures, reducing the mold cost.

[0013] 2. Using the utility model can directly achieve the aperture, and the aperture can be of different customizable shapes. Combined with the adjustment of the micrometer, it can accurately adjust the alignment of the aperture, improve the precision of the product, greatly improve the yield rate, reduce the cost, and break the high-cost manufacturing in the PMDS laboratory. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the preferred embodiment of the precision PDMS mold of the utility model;

[0015] Figure 2 is a schematic exploded view of the preferred embodiment of the precision PDMS mold of the utility model.

[0016] Reference Numerals in the Drawings:

[0017] Adjusting base 1; Mold body 2; Silicon wafer 3; Insert pin 4; Micrometer 5; First lower die 6; Second lower die 7; Cover plate 8; Upper die 9; First adjustment chute 10; Second adjustment chute 11; Second slide rail 12; First screw 13; Second screw 14; Flat head locking screw 15.

[0018] In order to make the purpose, technical solutions and advantages of the utility model clearer, the following further details the utility model with reference to the drawings and embodiments. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0020] The utility model provides a precision PDMS mold. The precision PDMS mold of the utility model is applied to the production of PMDS products. Through the mold, PDMS opening can be achieved without post-drilling.

[0021] Please refer to Figure 1 and Figure 2 , the preferred embodiment of the precision PDMS mold of the utility model includes: an adjusting base 1 and a mold body 2. The mold body 2 is adjustably arranged in the adjusting base 1. A silicon wafer 3 is arranged in the mold body 2. An insert pin 4 is arranged at the top of the mold body 2. A micrometer 5 is arranged around the adjustment. The micrometer 5 is used to adjust and align the aperture position of the silicon wafer 3.

[0022] Specifically, in this embodiment, the mold body 2 includes a first lower mold 6, a second lower mold 7, a cover plate 8, and an upper mold 9. The first lower mold 6 is adjustably disposed in the adjustment base 1. The second lower mold 7 is adjustably disposed on the first lower mold 6. The silicon wafer 3 is disposed on the second lower mold 7. The cover plate 8 is covered on the silicon wafer 3. The upper mold 9 is disposed on the cover plate 8. The insert pin 4 is disposed on the upper mold 9. In this embodiment, the insert pin 4 can be of different shapes according to requirements.

[0023] During use, the mold body 2 is loaded into the adjustment base 1 and placed on the two-dimensional measuring instrument. Through the aperture of the insert pin 4, the aperture position of the silicon wafer 3 is adjusted and aligned through the micrometer 5. After adjustment, the upper and lower mold screws of the mold are tightened, and then the mold body 2 is taken out. PDMS is poured through the pouring port and cured and formed by the existing technology.

[0024] Specifically, in this embodiment, a first adjustment sliding groove 10 is provided at the bottom of the first lower mold 6, and a first sliding rail corresponding to the first adjustment sliding groove 10 is provided at the bottom of the adjustment base 1.

[0025] A second adjustment sliding groove 11 is provided at the top of the first lower mold 6, and a second sliding rail 12 corresponding to the second adjustment sliding groove 11 is provided at the bottom of the second lower mold 7.

[0026] In this embodiment, a pouring port is provided on one side of the cover plate 8.

[0027] The entire assembly and working process of the precision PDMS mold of the present utility model is as follows:

[0028] 1. Load the silicon wafer 3 into the second lower mold 7, cover the cover plate 8, and fix it with six flat head locking screws 15;

[0029] 2. Put on the first lower mold 6;

[0030] 3. Cover the upper mold 9, pass the first screw 13 through the cover plate 8 and the second lower mold 7, and lock and fix it with the first lower mold 6;

[0031] 4. Load the assembled mold body 2 into the adjustment base 1 and tighten the second screw 14;

[0032] 5. Loosen the first screw 13. At this time, the first lower mold 6 and the second lower mold 7 can move left and right, forward and backward;

[0033] 6. Place the two-dimensional projector. Through the holes of the insert pin 4, adjust through four micrometers 5 to align the aperture of the insert pin 4 with the aperture on the silicon wafer 3;

[0034] 7. After alignment, tighten the first screw 13 to fix the upper mold 9 and the first lower mold 6 together. Loosen the second screw 14, remove the entire mold body 2, and install the insert pin 4 into the mold.

[0035] 8. The mold adjustment is completed, and pouring and curing are carried out to form the product.

[0036] The beneficial effects of the precision PDMS mold of the present utility model are as follows:

[0037] 1. The present utility model has common interchangeability. By replacing the cover plate and the upper mold, it can be adapted to products with different thicknesses and different structures, reducing the mold cost.

[0038] 2. Using the present utility model can directly achieve the aperture, and the aperture can be customized in different shapes. Combined with the adjustment of the micrometer, the aperture alignment can be accurately adjusted, improving the precision of the product, greatly increasing the yield rate, reducing the cost, and breaking the high-cost manufacturing in the PMDS laboratory.

[0039] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structure or process transformation made by using the description and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A precision PDMS mold, characterized in that, Including: An adjusting base and a mold body. The mold body is adjustably arranged in the adjusting base. A silicon wafer is arranged in the mold body. A dowel pin is arranged at the top of the mold body. Micrometers are arranged around the adjustment part, and the micrometers are used to adjust and align the aperture position of the silicon wafer.

2. The precision PDMS mold according to claim 1, wherein The mold body includes a first lower mold, a second lower mold, a cover plate and an upper mold. The first lower mold is adjustably arranged in the adjusting base. The second lower mold is adjustably arranged on the first lower mold. The silicon wafer is arranged on the second lower mold. The cover plate is covered on the silicon wafer. The upper mold is arranged on the cover plate. The dowel pin is arranged on the upper mold.

3. The precision PDMS mold according to claim 2, wherein A first adjusting chute is arranged at the bottom of the first lower mold. A first slide rail corresponding to the first adjusting chute is arranged at the bottom of the adjusting base.

4. The precision PDMS mold according to claim 3, wherein A second adjusting chute is arranged at the top of the first lower mold. A second slide rail corresponding to the second adjusting chute is arranged at the bottom of the second lower mold.

5. The precision PDMS mold according to claim 2, wherein A pouring port is formed on one side of the cover plate.

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