CN104029340A - Injection mold - Google Patents
Injection mold Download PDFInfo
- Publication number
- CN104029340A CN104029340A CN201410029402.4A CN201410029402A CN104029340A CN 104029340 A CN104029340 A CN 104029340A CN 201410029402 A CN201410029402 A CN 201410029402A CN 104029340 A CN104029340 A CN 104029340A
- Authority
- CN
- China
- Prior art keywords
- cavity
- glue
- feeder
- blank space
- plastic
- 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
- 238000002347 injection Methods 0.000 title claims abstract description 16
- 239000007924 injection Substances 0.000 title claims abstract description 16
- 229920003023 plastic Polymers 0.000 claims abstract description 20
- 239000004033 plastic Substances 0.000 claims abstract description 20
- 230000002787 reinforcement Effects 0.000 claims description 21
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000003014 reinforcing effect Effects 0.000 abstract 5
- 230000009466 transformation Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
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
- B29C45/2602—Mould construction elements
-
- 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
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to an injection mold. The injection mold comprises a male mold and a female mold which are disposed oppositely. The female mold and the male mold form a cavity when the female mold and the male mold are assembled. The cavity is provided with a plurality of straight bars. Intersections of more than three straight bars form reinforcing ribs. The outside of the cavity is a blank space. The blank space is provided with a plurality of plastic inlets. Melt plastic is injected into the cavity through the plastic inlets. Two ends of each of the plastic inlets are corresponding to the reinforcing ribs in the cavity. According to the injection mold, the plastic inlets are corresponding to the reinforcing ribs in the cavity, namely the plastic feeding positions are adjusted to be close to the reinforcing ribs, and therefore force bearing points are at the reinforcing ribs during a process of cutting the plastic inlets after the plastic is cooled, thus avoiding pulling concave and transformation of a molded product.
Description
Technical field
The present invention relates to a kind of injection mold.
Background technology
As shown in Figure 1, when producing the working of plastics such as keyboard, conventionally the mode adopting is to utilize male model and master mold matched moulds to produce cavity 10, in described cavity 10, comprise some thinner straight-bars 11, three form reinforcement 12 with upper straight rod 11 intersections, existing way is to utilize the glue-feeder 30 be horizontally placed on the blank space 20 corresponding with straight-bar 11 centre positions to the plastics that pass into melting in cavity 10, after plastics are cooling, male model is separated with master mold, take out the product of moulding, now, the plastics that are arranged in the glue-feeder 30 of blank space need to be removed by follow-up cutting step, but because the position of glue-feeder 30 is just positioned at the thin centre position partly of product, cut in process, the thinner part of product is stressed to be concentrated, easily there is drawing recessed distortion.
Summary of the invention
The invention provides a kind of injection mold, to solve after injecting products moulding, while cutting glue-feeder, be prone to the problem of drawing recessed distortion.
For solving the problems of the technologies described above, the invention provides a kind of injection mold, comprise the male model and the master mold that are oppositely arranged, when described male model and master mold matched moulds, form cavity, comprise some straight-bars in described cavity, San Geyi upper straight rod intersection forms reinforcement, the outside of described cavity is blank space, described blank space is provided with some glue-feeders, and described glue-feeder is to the plastics of injecting melting in described cavity, and the two ends of described glue-feeder are the reinforcement place in corresponding described cavity respectively.
Preferably, described blank space is rectangle, and the two ends of described glue-feeder lay respectively at cornerwise two ends of described rectangle.
Preferably, described blank space is rectangle, and described glue-feeder is V font, and the two ends of described glue-feeder lay respectively at the two ends on a limit of described rectangle.
Injection mold provided by the invention, comprise the male model and the master mold that are oppositely arranged, when described male model and master mold matched moulds, form cavity, in described cavity, comprise some straight-bars, San Geyi upper straight rod intersection forms reinforcement, and the outside of described cavity is blank space, and described blank space is provided with some glue-feeders, described glue-feeder is to the plastics of injecting melting in described cavity, and the two ends of described glue-feeder are the reinforcement place in corresponding described cavity respectively.The present invention is by corresponding to the position of glue-feeder at the reinforcement place in cavity, namely adjusts position into glue near described reinforcement, after plastics are cooling, cuts in the process of glue-feeder, and stress point is positioned at reinforcement place, avoids shaped article to occur drawing recessed distortion.
Accompanying drawing explanation
Fig. 1 is the position relationship schematic diagram of injection mold glue-feeder and shaped article in prior art;
Fig. 2 is the injection mold glue-feeder of the embodiment of the invention and the position relationship schematic diagram of shaped article.
In Fig. 1: 10-cavity, 11-straight-bar, 12-reinforcement, 20-blank space, 30-glue-feeder;
In Fig. 2: 100-cavity, 110-straight-bar, 120-reinforcement, 200-blank space, 300-glue-feeder.
The specific embodiment
For the technical scheme of more detailed statement foregoing invention, below list specific embodiment and carry out Proof Technology effect; It is emphasized that these embodiment are not limited to limit the scope of the invention for the present invention is described.
Injection mold provided by the invention, as shown in Figure 2, comprise the male model (not shown) and the master mold (not shown) that are oppositely arranged, when described male model and master mold matched moulds, form cavity 100, in described cavity 100, comprise some straight-bars 110, three form reinforcement 120 with upper straight rod 110 intersections, the outside of described cavity 100 is blank space 200, described blank space 200 is provided with some glue-feeders 300, described glue-feeder 300 is to the plastics of injecting melting in described cavity 100, and the two ends of described glue-feeder 300 are reinforcement 120 places in corresponding described cavity 100 respectively.The present invention is by corresponding to the position of glue-feeder 300 at reinforcement 120 places in cavity 100, namely adjust position into glue near described reinforcement 120, after plastics are cooling, cut in the process of glue-feeder, stress point is positioned at reinforcement 120 places, avoids shaped article to occur drawing recessed distortion.
Preferably, please continue to refer to Fig. 2, described blank space 200 is rectangle, and the two ends of described glue-feeder 300 lay respectively at cornerwise two ends of described rectangle.Certainly, described glue-feeder 300 also can be V font, and the two ends of described glue-feeder 300 lay respectively at the two ends on a limit of described rectangle.Only need guarantee the corresponding described reinforcement 120 in position of glue-feeder 300.
In sum, injection mold provided by the invention, comprise the male model and the master mold that are oppositely arranged, when described male model and master mold matched moulds, form cavity 100, in described cavity 100, comprise some straight-bars 110, three form reinforcement 120 with upper straight rod 110 intersections, the outside of described cavity 100 is blank space 200, described blank space 200 is provided with some glue-feeders 300, described glue-feeder 300 is to the plastics of injecting melting in described cavity 100, and the two ends of described glue-feeder 300 are reinforcement 120 places in corresponding described cavity 100 respectively.The present invention is by corresponding to the position of glue-feeder 300 at reinforcement 120 places in cavity 100, namely adjust position into glue near described reinforcement 120, after plastics are cooling, cut in the process of glue-feeder, stress point is positioned at reinforcement 120 places, avoids shaped article to occur drawing recessed distortion.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these change and modification.
Claims (3)
1. an injection mold, comprise the male model and the master mold that are oppositely arranged, when described male model and master mold matched moulds, form cavity, in described cavity, comprise some straight-bars, San Geyi upper straight rod intersection forms reinforcement, and the outside of described cavity is blank space, described blank space is provided with some glue-feeders, described glue-feeder, to the plastics of injecting melting in described cavity, is characterized in that, the two ends of described glue-feeder are the reinforcement place in corresponding described cavity respectively.
2. injection mold as claimed in claim 1, is characterized in that, described blank space is rectangle, and the two ends of described glue-feeder lay respectively at cornerwise two ends of described rectangle.
3. injection mold as claimed in claim 1, is characterized in that, described blank space is rectangle, and described glue-feeder is V font, and the two ends of described glue-feeder lay respectively at the two ends on a limit of described rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410029402.4A CN104029340A (en) | 2014-01-22 | 2014-01-22 | Injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410029402.4A CN104029340A (en) | 2014-01-22 | 2014-01-22 | Injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104029340A true CN104029340A (en) | 2014-09-10 |
Family
ID=51460444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410029402.4A Pending CN104029340A (en) | 2014-01-22 | 2014-01-22 | Injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104029340A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110391107A (en) * | 2018-04-20 | 2019-10-29 | 致伸科技股份有限公司 | The forming method of button cap |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001009875A (en) * | 1999-07-02 | 2001-01-16 | Minebea Co Ltd | Injection mold |
| CN202114874U (en) * | 2011-05-30 | 2012-01-18 | 圣美精密工业(昆山)有限公司 | Feeding dot structure of keyboard frame |
| CN203185582U (en) * | 2013-01-25 | 2013-09-11 | 昆山咏联电子塑胶有限公司 | Composite metal keyboard and injection mold thereof |
-
2014
- 2014-01-22 CN CN201410029402.4A patent/CN104029340A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001009875A (en) * | 1999-07-02 | 2001-01-16 | Minebea Co Ltd | Injection mold |
| CN202114874U (en) * | 2011-05-30 | 2012-01-18 | 圣美精密工业(昆山)有限公司 | Feeding dot structure of keyboard frame |
| CN203185582U (en) * | 2013-01-25 | 2013-09-11 | 昆山咏联电子塑胶有限公司 | Composite metal keyboard and injection mold thereof |
Non-Patent Citations (1)
| Title |
|---|
| 苗利蕾等: "基于Moldex3D注射成型中浇口位置与数目的数值模拟", 《塑料》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110391107A (en) * | 2018-04-20 | 2019-10-29 | 致伸科技股份有限公司 | The forming method of button cap |
| CN110391107B (en) * | 2018-04-20 | 2021-09-28 | 致伸科技股份有限公司 | Forming method of key cap |
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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: 20140910 |