CN203171946U - High-sealing vacuuming die with multiple injection heads - Google Patents
High-sealing vacuuming die with multiple injection heads Download PDFInfo
- Publication number
- CN203171946U CN203171946U CN 201320207725 CN201320207725U CN203171946U CN 203171946 U CN203171946 U CN 203171946U CN 201320207725 CN201320207725 CN 201320207725 CN 201320207725 U CN201320207725 U CN 201320207725U CN 203171946 U CN203171946 U CN 203171946U
- Authority
- CN
- China
- Prior art keywords
- sealing
- vacuuming
- material barrel
- end cover
- injection heads
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a high-sealing vacuuming die with multiple injection heads. The high-sealing vacuuming die with the multiple injection heads comprises a material barrel (1), a lower die box ejector rod fixing plate (2), a lower die box pushing plate (3) and a lower die box cushion plate (4), wherein a material barrel sealing end cover (5) is sleeved at the bottom of the material barrel and passes through the lower die box ejector rod fixing plate and the lower die box pushing plate in sequence; and the tail end of the material barrel sealing end cover is fixedly connected to the lower die box cushion plate. The high-sealing vacuuming die with the multiple injection heads has the beneficial effects that the material barrel sealing cover is designed at the lower end of each material barrel, seal rings are arranged at the upper end and the lower end of each material barrel sealing end cover, original ultra-large type sealing rubber is replaced by small-diameter seal rings, and the sealing rings cannot bear the compressing force generated in back-and-forth movement, so that the vacuuming performance of the die is ensured; and simultaneously, the high-sealing vacuuming die with the multiple injection heads is simple to mount and convenient to maintain, and greatly prolongs the service life and increases the cost of a sealing component.
Description
Technical field
The utility model relates to the injection head mould, relate in particular to have an excellent sealing vacuumize many injection heads mould.
Background technology
Development day by day along with the semiconductor packages industry, appearance and the traditional Q FN of ultra-thin POP and LED encapsulation, a large amount of productions of BGA encapsulation, performance indications to product require more and more higher, vacuumize many injection heads mould and can largely satisfy the encapsulation performance index of these products, and its course of work is finished by vacuum extractor and sealing device, traditional mould that vacuumizes is generally whole mould bases sealing, the size of mould bases itself is just bigger, and seal is the super-large diameter fluorubber, compress rubber by matched moulds and play sealing function, because contact-making surface is too big, sealing property is not very good, vacuum can't improve, when using a period of time, the rubber of sealing usefulness can produce wearing and tearing in the process of mould open/close, distortion, the vacuum that can not reach mould needs must be asked.
The utility model content
The technical problems to be solved in the utility model is that the existing sealing property that vacuumizes many injection heads mould is bad, long-time use can cause the rubber abrasion deformation of sealing usefulness to cause mould vacuum to reduce, provide for this reason a kind of have an excellent sealing vacuumize many injection heads mould.
The technical solution of the utility model is: what have excellent sealing vacuumizes many injection heads mould, it comprises barrel, following diaphragm capsule push rod fixed head, following diaphragm capsule push pedal and following diaphragm capsule backing plate, described barrel bottom is set with the barrel end cover, described barrel end cover passes down diaphragm capsule push rod fixed head successively and reaches diaphragm capsule push pedal down, and its end is fixed in down on the diaphragm capsule backing plate.
The improvement of such scheme is that described barrel end cover and described barrel contact position are provided with sealing ring.
The improvement of such scheme is that described barrel end cover and described diaphragm capsule backing plate contact position down are provided with sealing ring.
Sealing ring described in the such scheme is teflin ring.
The beneficial effects of the utility model are to be provided with sealing ring in two ends up and down at each barrel lower end design barrel end cover and at the barrel end cover, not only original ultra-large type caulking gum has been made into the sealing ring of minor diameter, more make the compression stress of the generation that sealing ring do not moved back and forth, guarantee the performance that vacuumizes of mould, install simple simultaneously, easy to maintenance, prolonged life-span and the cost of seal greatly.
Description of drawings
Fig. 1 is the utility model schematic diagram;
Among the figure, 1, barrel, 2, diaphragm capsule push rod fixed head down, 3, diaphragm capsule push pedal down, 4, diaphragm capsule backing plate down, 5, the barrel end cover, 6, sealing ring.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1, the utility model comprises barrel 1, following diaphragm capsule push rod fixed head 2, following diaphragm capsule push pedal 3 and following diaphragm capsule backing plate 4, the barrel bottom is set with barrel end cover 5, and the barrel end cover passes down diaphragm capsule push rod fixed head and diaphragm capsule push pedal down successively, and its end is fixed in down on the diaphragm capsule backing plate.
The present invention increases the barrel end cover is set between barrel and following diaphragm capsule backing plate, and the material of this barrel end cover can be based on steel external application NBR rubber, the PA nylon material is also arranged with FKM fluorine glue material.
The barrel end cover can be provided with sealing ring 6 with the barrel contact position separately, the barrel end cover also can be provided with sealing ring with following diaphragm capsule backing plate contact position separately, certainly preferably be equipped with sealing ring with barrel contact position, barrel end cover with following diaphragm capsule backing plate contact position in order to reach better sealing effectiveness, the sealing circle can be teflin ring, this sealing ring corrosion-and high-temp-resistant can certainly be the sealing ring of other material.
The utility model dependence barrel and following diaphragm capsule backing plate compress the sealing ring in the barrel end cover, completely cut off the air in barrel and the external world, reduce the pore bubble of plastic-sealed body interior tissue, improve the plastic packaging product quality indicator, have also reduced the plastic packaging cost.Reduce the wearing and tearing of going into bit error and injection head and barrel simultaneously, prolong die life.
The sealing ring of a polytetrafluoroethylene (PTFE) respectively is installed in barrel end cover above and below during installation simultaneously, by screw the sealing ring in the barrel end cover is compressed with barrel and following diaphragm capsule backing plate respectively, it is hedged off from the outer world, the refractory seals spare and the vacuum extractor that cooperate the setting in the diaphragm capsule outside again, during work, can take inner air rapidly away, reach the vacuum that mould needs.
Claims (3)
1. what have excellent sealing vacuumizes many injection heads mould, it comprises barrel (1), following diaphragm capsule push rod fixed head (2), following diaphragm capsule push pedal (3) and following diaphragm capsule backing plate (4), it is characterized in that described barrel bottom is set with barrel end cover (5), described barrel end cover passes down diaphragm capsule push rod fixed head successively and reaches diaphragm capsule push pedal down, and its end is fixed in down on the diaphragm capsule backing plate.
As claimed in claim 1 have an excellent sealing vacuumize many injection heads mould, it is characterized in that described barrel end cover and described barrel contact position, barrel end cover and described diaphragm capsule backing plate contact position down are provided with sealing ring (6).
As claimed in claim 2 have an excellent sealing vacuumize many injection heads mould, it is characterized in that described sealing ring is teflin ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320207725 CN203171946U (en) | 2013-04-23 | 2013-04-23 | High-sealing vacuuming die with multiple injection heads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320207725 CN203171946U (en) | 2013-04-23 | 2013-04-23 | High-sealing vacuuming die with multiple injection heads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203171946U true CN203171946U (en) | 2013-09-04 |
Family
ID=49068696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320207725 Expired - Fee Related CN203171946U (en) | 2013-04-23 | 2013-04-23 | High-sealing vacuuming die with multiple injection heads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203171946U (en) |
-
2013
- 2013-04-23 CN CN 201320207725 patent/CN203171946U/en not_active Expired - Fee Related
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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: 20130904 Termination date: 20140423 |