CN201483730U - Microfluidic chip injection molding pneumatic demoulding device - Google Patents
Microfluidic chip injection molding pneumatic demoulding device Download PDFInfo
- Publication number
- CN201483730U CN201483730U CN2009200646969U CN200920064696U CN201483730U CN 201483730 U CN201483730 U CN 201483730U CN 2009200646969 U CN2009200646969 U CN 2009200646969U CN 200920064696 U CN200920064696 U CN 200920064696U CN 201483730 U CN201483730 U CN 201483730U
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- Prior art keywords
- movable mold
- air
- chip
- permeable material
- injection molding
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Abstract
The utility model relates to a device adopting an air-permeable material for microfluidic chip pneumatic demoulding, which comprises a movable mold plate, an air-permeable material and a movable mold fixing plate, wherein the lower surface of a cavity of the movable mold plate is provided with a mounting hole communicated with the cavity of the movable mold plate, a movable mold insert made of the air-permeable material is embedded in the mounding hole, and the bottom of the mounding hole is provided with a vent hole for air circulation and a radial groove between the movable mold insert and the external compressed air source. During demoulding, the compressed air passes through the vent hole, is uniformly transmitted to the movable mold insert made of the air-permeable material via the radial groove and enters the space between a molded chip and the cavity of the movable mold via the movable insert made of the air-permeable material so as to ensure that the surface of the chip in demoulding is stressed uniformly and does not have buckling deformation generated in a conventional demoulding mechanism, so the surface of the chip is smooth, the subsequent bonding quality is improved, and the qualification rate is increased.
Description
Technical field
The utility model relates to a kind of device that adopts poromeric material to carry out the micro-fluidic chip demoulding.
Background technology
At present, injection molding of micro-fluidic chip adopts the method demoulding of the direct ejection goods of push rod often, easily produce in the knockout course and eject vestige, stress cracking on the surface, influence the chip list appearance quality, and the push rod release method easily produces the unbalance stress phenomenon, cause the surface warp distortion and then influence follow-up bonding quality, increase percent defective.
The utility model content
The utility model provides a kind of stripper apparatus, can eliminate the scar that ejects of chip surface, improves the unbalance stress phenomenon in the knockout course, obtains the chip of surfacing.
The utility model relates to a kind of device that adopts poromeric material to carry out the micro-fluidic chip Pneumatic demould, comprise moving platen, poromeric material and dynamic mould fixing plate, the die cavity lower surface of moving platen offers the installing hole that communicates with the die cavity of moving platen, be inlaid with the dynamic model inserts that poromeric material is made in the installing hole, the installing hole bottom is provided with the passage and the radial groove of supplied gas circulation between dynamic model inserts and external compression source of the gas.Compressed Gas passes through passage, be delivered to equably on the dynamic model inserts that poromeric material makes through radial groove, and enter the chip of moulding and the space between the dynamic model die cavity by the dynamic model inserts of making by poromeric material, produce uniform knockout press at chip surface, realize the pneumatic steady demoulding.
Offer the installing hole that communicates with the die cavity of moving platen on the die cavity lower surface of described moving platen.
The end face of described dynamic model inserts is concordant with the die cavity lower surface of moving platen.
Described dynamic model inserts is a poromeric material, as powder sintered porous metals, porous ceramics etc.
Described dynamic model inserts be shaped as cuboid, also can be other shapes, decide according to the shape of micro-fluidic chip.
Described passage is made of two apertures that vary in size and is overall structure, and cross sectional shape is circular.
The quantity of described dynamic model inserts is one or more, by the quantity decision of die cavity.
The quantity of described passage is one or more, by the quantity decision of dynamic model inserts.
The utility model passage and compressed gas source are connected; Compressed Gas can enter the chip of moulding and the space between the dynamic model die cavity by passage and poromeric material; chip surface is subjected to uniform active force when guaranteeing the demoulding; the buckling deformation phenomenon that causes in traditional mould emptier does not take place; make chip surface smooth; thereby improve follow-up bonding quality, improve qualification rate.
Description of drawings
Below in conjunction with drawings and the embodiments the utility model is described in further details.
Fig. 1 is the structural representation of the utility model Pneumatic demould device embodiment 1;
Fig. 2 is the structural representation of the utility model Pneumatic demould device embodiment 2.
The specific embodiment
Embodiment 1
Pneumatic demould apparatus structure schematic diagram as shown in Figure 1, this demolding structure comprise moving platen 3, the cuboid dynamic model inserts of being made by poromeric material 2, passage 4 and the radial groove 5 that is connected with dynamic model inserts 2 bottoms.Have the installing hole that communicates with the die cavity of moving platen on the die cavity lower surface 1 of moving platen 3, dynamic model inserts 2 is fixedly mounted in the installing hole, and interference fit between the installing hole, and the end face of dynamic model inserts 2 is concordant with the die cavity lower surface 1 of moving platen.Passage 4 is made of two apertures that vary in size and is overall structure, radial groove 5 is distributed in the installing hole bottom of being offered on the die cavity lower surface 1 of moving platen by passage 4 radial that sets out, passage 4 and radial groove 5 constitute the Pneumatic demould passage of demolding structure, are connected with compressed gas source and dynamic model inserts 2.
During the demoulding, Compressed Gas is by passage 4, be delivered to equably on the dynamic model inserts 2 that poromeric material makes through radial groove 5, and enter the chip of moulding and the space between the dynamic model die cavity by the dynamic model inserts of making by poromeric material 2, produce uniform knockout press at chip surface, realize the pneumatic steady demoulding.
Demolding structure as shown in Figure 2 is embodiment 2 of the present utility model, different with embodiment 1 is, the dynamic model inserts 2 that poromeric material is made is stepped cuboid, and the mode that connects fastening moving platen 3 and dynamic mould fixing plate 6 by screw is fixedly mounted in the installing hole of being offered on the die cavity lower surface 1 of moving platen 3.In the present embodiment, the dynamic model inserts 2 that poromeric material is made is than being easy to mounting or dismounting among the embodiment 1.
In conjunction with the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is exemplary; not restrictive; any innovation and creation that do not exceed the utility model aim and claim are all within protection of the present utility model.
Claims (4)
1. injection molding of micro-fluidic chip Pneumatic demould device, it is characterized in that: comprise moving platen, poromeric material and dynamic mould fixing plate, offer the installing hole that communicates with the die cavity of moving platen on the die cavity lower surface of moving platen, be inlaid with the dynamic model inserts that poromeric material is made in the installing hole, the passage and the radial groove of supplied gas circulation arranged at the installing hole bottom.
2. injection molding of micro-fluidic chip Pneumatic demould device according to claim 1, the end face of described dynamic model inserts is concordant with the die cavity lower surface of moving platen.
3. injection molding of micro-fluidic chip Pneumatic demould device according to claim 1 is characterized in that: described dynamic model inserts be shaped as cuboid, or with the micro-fluidic chip corresponding shape.
4. injection molding of micro-fluidic chip Pneumatic demould device according to claim 1 is characterized in that: described passage is two holes that vary in size, and cross sectional shape is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200646969U CN201483730U (en) | 2009-06-03 | 2009-06-03 | Microfluidic chip injection molding pneumatic demoulding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200646969U CN201483730U (en) | 2009-06-03 | 2009-06-03 | Microfluidic chip injection molding pneumatic demoulding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201483730U true CN201483730U (en) | 2010-05-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200646969U Expired - Fee Related CN201483730U (en) | 2009-06-03 | 2009-06-03 | Microfluidic chip injection molding pneumatic demoulding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201483730U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107225740A (en) * | 2017-07-05 | 2017-10-03 | 上海小糸车灯有限公司 | The lens die ejecting structure and extrusion method of a kind of inert gas auxiliary ejection |
-
2009
- 2009-06-03 CN CN2009200646969U patent/CN201483730U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107225740A (en) * | 2017-07-05 | 2017-10-03 | 上海小糸车灯有限公司 | The lens die ejecting structure and extrusion method of a kind of inert gas auxiliary ejection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20110603 |