CN104943074A - Vacuum-pumping injection mould - Google Patents
Vacuum-pumping injection mould Download PDFInfo
- Publication number
- CN104943074A CN104943074A CN201510395504.2A CN201510395504A CN104943074A CN 104943074 A CN104943074 A CN 104943074A CN 201510395504 A CN201510395504 A CN 201510395504A CN 104943074 A CN104943074 A CN 104943074A
- Authority
- CN
- China
- Prior art keywords
- board
- air
- molding
- vacuum
- lower bolster
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/34—Moulds having venting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a vacuum-pumping injection mould. The vacuum-pumping injection mould comprises an upper fixed board, an upper molding board, a lower molding board and a lower fixed board, wherein an upper mould core is arranged in the upper molding board; a lower mould core corresponding to the upper mould core is fixedly arranged in the lower molding board; a movable ejector block is arranged between the lower molding board and the lower fixed board; an air discharge needle upwards extending into the lower mould core is fixedly arranged on the movable ejector board; air guide holes corresponding to the air discharge needle are formed in the lower molding board and the lower mould core; and an air extracting hole which is communicated with the air guide holes is formed in the side surface of the lower molding board. In this way, according to the vacuum-pumping injection mould disclosed by the invention, the air extracting hole carries out vacuum-pumping on a molding cavity under the driving of an external air extractor, and then carries out injection molding of plastic, so that an oil cylinder extends out when 80% of the molding cavity is filled, and the air discharge needle lifts along with the movable ejector board to seal the air guide holes, thereby stopping vacuum-pumping to complete injection molding, facilitating automatic control and increasing the qualified rate of products.
Description
Technical field
The present invention relates to injection mold field, particularly relate to one and vacuumize injection mold.
Background technology
Compared with metallic article, the production efficiency of plastic cement products is high, lightweight, and anti-corrosive properties are good, and Application comparison is extensive.Injecting products carries out cooling mainly through the plastics injecting fusing in mould and moulds, high to the structural requirement of mould.
Injection mold is generally cope match-plate pattern and lower bolster composition, and the core rod in cope match-plate pattern and lower bolster matches and obtains the shape chamber of product, and the plastics of fusing are injected shape chamber from cast gate and filled.After the mold is closed, core rod in cope match-plate pattern and lower bolster forms airtight shape chamber, only communicated with the external world by cast gate, shape remains with air in chamber, and when the plastics of fusing are injected from cast gate, cast gate is filled up by plastics, air in shape chamber cannot be overflowed, easily there is incompleteness in the product filling effect in shape chamber being produced to certain impact, particularly labyrinth, reduces product percent of pass.
Summary of the invention
The technical problem that the present invention mainly solves is to provide one and vacuumizes injection mold, takes the partial air in Die away, improves qualification rate.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide one to vacuumize injection mold, comprise: upper mounted plate, cope match-plate pattern, lower bolster and bottom plate, described cope match-plate pattern is set in parallel in below upper mounted plate, described lower bolster is set in parallel in above bottom plate, upper mold core is provided with in described cope match-plate pattern, the lower mold core corresponding with upper mold core is fixedly installed in described lower bolster, one piece of movable panel is provided with between described lower bolster and bottom plate, described movable panel is fixedly installed the air-out needle extended upwardly among lower mold core, described lower bolster be provided with the gas port corresponding with air-out needle in lower mold core, described lower bolster side is provided with the aspirating hole be connected with gas port.
In a preferred embodiment of the present invention, described lower bolster is provided with oil cylinder, the telescopic end of described oil cylinder is connected with movable panel and drives moving up and down of movable panel.
In a preferred embodiment of the present invention, the cylinder that described air-out needle comprises top and the tapered rod be connected to below cylinder.
In a preferred embodiment of the present invention, the open top of described gas port is arranged on the intracavity bottom of lower mold core.
In a preferred embodiment of the present invention, between described cope match-plate pattern and upper mounted plate, be provided with water gap plate.
The invention has the beneficial effects as follows: the one that the present invention points out vacuumizes injection mold, after matched moulds, upper mold core and lower mold core form airtight shape chamber, aspirating hole vacuumizes shape chamber under the drive of outside air exhauster, then the injection moulding of plastics is carried out, when being filled into about 80% in shape chamber, oil cylinder stretches out, and air-out needle rises with movable panel and carries out shutoff to gas port, stops vacuumizing and completing injection moulding, be conducive to Automated condtrol, improve the qualification rate of product.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is a kind of structural representation vacuumizing injection mold one preferred embodiment of the present invention.
Detailed description of the invention
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
One vacuumizes injection mold, comprise: upper mounted plate 1, cope match-plate pattern 11, lower bolster 21 and bottom plate 2, described cope match-plate pattern 11 is set in parallel in below upper mounted plate 1, described lower bolster 21 is set in parallel in above bottom plate 2, upper mold core 12 is provided with in described cope match-plate pattern 11, be fixedly installed the lower mold core 22 corresponding with upper mold core 12 in described lower bolster 21, after matched moulds, between upper mold core 12 and lower mold core 22, form the shape chamber of product 5.
One piece of movable panel 3 is provided with between described lower bolster 21 and bottom plate 2, described movable panel 3 is fixedly installed the air-out needle 4 extended upwardly among lower mold core 22, the gas port 23 corresponding with air-out needle 4 is provided with in described lower bolster 21 and lower mold core 22, described lower bolster 21 side is provided with the aspirating hole 24 be connected with gas port 23, aspirating hole 24 is connected with outside air exhauster, the open top of described gas port 23 is arranged on the intracavity bottom of lower mold core 22, therefore gas port 23 communicates with the shape chamber of product 5, gas port 23 can be utilized to vacuumize.
Described lower bolster 21 is provided with oil cylinder 6, the telescopic end of described oil cylinder 6 is connected with movable panel 3 and drives moving up and down of movable panel 3, meanwhile, air-out needle 4 moves up and down, the cylinder that described air-out needle 4 comprises top and the tapered rod be connected to below cylinder with movable panel 3.Before injection moulding, oil cylinder 6 shrinks, air-out needle 4 move down and the cylinder at air-out needle 4 top is moved down and and produce certain gap between gas port 23, be convenient to shape chamber air and extract out from gas port 23 and aspirating hole 24.
After the filling plastic injected to 80% of shape chamber, the telescopic end of oil cylinder 6 ejects, the cylinder at air-out needle 4 top rises and fills the open top of gas port 23, plastics are avoided to flow into gas port 23, in lower mold core 22, the top end face of air-out needle 4 compensate for the opening of gas port 23, reduces the burr that injection moulding is formed, and improves the presentation quality of product.
Water gap plate 13 is provided with between described cope match-plate pattern 11 and upper mounted plate 1.Water gap plate 13 water flowing can carry out the cooling of mould, improves product 5 and cools and the efficiency of the demoulding.
In sum, the one that the present invention points out vacuumizes injection mold, can vacuumize the shape chamber of mould, improves the qualification rate of product, and avoids the product burr problem that gas port causes, applied widely.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. one kind vacuumizes injection mold, comprise: upper mounted plate, cope match-plate pattern, lower bolster and bottom plate, described cope match-plate pattern is set in parallel in below upper mounted plate, described lower bolster is set in parallel in above bottom plate, upper mold core is provided with in described cope match-plate pattern, the lower mold core corresponding with upper mold core is fixedly installed in described lower bolster, it is characterized in that, one piece of movable panel is provided with between described lower bolster and bottom plate, described movable panel is fixedly installed the air-out needle extended upwardly among lower mold core, described lower bolster be provided with the gas port corresponding with air-out needle in lower mold core, described lower bolster side is provided with the aspirating hole be connected with gas port.
2. according to claim 1ly vacuumize injection mold, it is characterized in that, described lower bolster is provided with oil cylinder, and the telescopic end of described oil cylinder is connected with movable panel and drives moving up and down of movable panel.
3. according to claim 1ly vacuumize injection mold, it is characterized in that, the cylinder that described air-out needle comprises top and the tapered rod be connected to below cylinder.
4. according to claim 3ly vacuumize injection mold, it is characterized in that, the open top of described gas port is arranged on the intracavity bottom of lower mold core.
5. according to claim 1ly vacuumize injection mold, it is characterized in that, between described cope match-plate pattern and upper mounted plate, be provided with water gap plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510395504.2A CN104943074A (en) | 2015-07-08 | 2015-07-08 | Vacuum-pumping injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510395504.2A CN104943074A (en) | 2015-07-08 | 2015-07-08 | Vacuum-pumping injection mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104943074A true CN104943074A (en) | 2015-09-30 |
Family
ID=54158396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510395504.2A Pending CN104943074A (en) | 2015-07-08 | 2015-07-08 | Vacuum-pumping injection mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104943074A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869985A (en) * | 2016-06-12 | 2016-08-17 | 江苏天瑞仪器股份有限公司 | Vacuum cover plate structure for desorption ion source sampling device |
| CN112406004A (en) * | 2020-10-30 | 2021-02-26 | 嘉兴天行健精密模具有限公司 | Machining equipment for improving machining precision of injection mold and machining method thereof |
| CN114801042A (en) * | 2022-06-23 | 2022-07-29 | 赫比(成都)精密塑胶制品有限公司 | Mould suitable for screen cloth inserts injection moulding product |
| CN117885272A (en) * | 2024-01-31 | 2024-04-16 | 宁波富佳斯模塑科技有限公司 | Injection mold for drawer of automobile armrest box |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2691828Y (en) * | 2004-03-15 | 2005-04-13 | 佑企精密工业股份有限公司 | Improved vacuum extraction structure of plastic shaping mould |
| CN103538217A (en) * | 2013-10-29 | 2014-01-29 | 杨永明 | Light guide plate mould |
| CN203831731U (en) * | 2014-04-30 | 2014-09-17 | 深圳市晶鑫晟精密组件有限公司 | Tunnel slide air discharging mold |
| CN204773327U (en) * | 2015-07-08 | 2015-11-18 | 骏伟塑胶制品（太仓）有限公司 | Evacuation injection mold |
-
2015
- 2015-07-08 CN CN201510395504.2A patent/CN104943074A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2691828Y (en) * | 2004-03-15 | 2005-04-13 | 佑企精密工业股份有限公司 | Improved vacuum extraction structure of plastic shaping mould |
| CN103538217A (en) * | 2013-10-29 | 2014-01-29 | 杨永明 | Light guide plate mould |
| CN203831731U (en) * | 2014-04-30 | 2014-09-17 | 深圳市晶鑫晟精密组件有限公司 | Tunnel slide air discharging mold |
| CN204773327U (en) * | 2015-07-08 | 2015-11-18 | 骏伟塑胶制品（太仓）有限公司 | Evacuation injection mold |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869985A (en) * | 2016-06-12 | 2016-08-17 | 江苏天瑞仪器股份有限公司 | Vacuum cover plate structure for desorption ion source sampling device |
| CN112406004A (en) * | 2020-10-30 | 2021-02-26 | 嘉兴天行健精密模具有限公司 | Machining equipment for improving machining precision of injection mold and machining method thereof |
| CN114801042A (en) * | 2022-06-23 | 2022-07-29 | 赫比(成都)精密塑胶制品有限公司 | Mould suitable for screen cloth inserts injection moulding product |
| CN114801042B (en) * | 2022-06-23 | 2022-09-30 | 赫比(成都)精密塑胶制品有限公司 | Mould suitable for screen cloth inserts injection moulding product |
| CN117885272A (en) * | 2024-01-31 | 2024-04-16 | 宁波富佳斯模塑科技有限公司 | Injection mold for drawer of automobile armrest box |
| CN117885272B (en) * | 2024-01-31 | 2024-07-05 | 宁波富佳斯模塑科技有限公司 | Injection mold for drawer of automobile armrest box |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204413070U (en) | Cold-box core blower | |
| CN104943074A (en) | Vacuum-pumping injection mould | |
| CN107839161A (en) | A kind of Anti-bubble injection mold for being easy to the demoulding | |
| CN205969716U (en) | Automatic injection moulding device of clearance mould | |
| CN103878938A (en) | Improved automatic demoulding pouring mould for outer barrels of dust collectors | |
| CN204842881U (en) | Automatic core shooting machine of blowing | |
| CN204773327U (en) | Evacuation injection mold | |
| CN105397060A (en) | Vertical-type high-pressure casting die for in-die automatic cutting casting system | |
| CN215359409U (en) | Pressure injection mold for oil seal of oil pump | |
| CN208514825U (en) | A kind of mold | |
| CN206765244U (en) | A kind of bottle cap of vacuum flask mould | |
| CN205497945U (en) | Injection moulding mould is assisted to automobile cooling water pipe gas | |
| CN105084719A (en) | Mold for producing glass products | |
| CN204486710U (en) | A kind of block mould structure | |
| CN104260291B (en) | Compact inspection shaft well seat demoulding mechanism | |
| CN204396790U (en) | Lost foam forming machine | |
| CN211221852U (en) | Injection mold for header board with buffering way | |
| CN205341881U (en) | Aluminum alloy wheel hub middle and low voltage casting mould | |
| CN204278419U (en) | The injection mold demolding structure coordinated by straight push rod and angle ejector rod | |
| CN209126095U (en) | A kind of uniform moulding injection mold for optical mirror slip | |
| CN208529614U (en) | A kind of pull ring production mould | |
| CN107364093B (en) | A kind of plastic mould with vibrating function | |
| CN207841961U (en) | A kind of injection mold with ejecting mechanism | |
| CN208812464U (en) | Sliding block accelerates loose-core injection mould | |
| CN206780913U (en) | A kind of decorative shell mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150930 |