CN201169038Y - Rubber injecting molded cold runner - Google Patents
Rubber injecting molded cold runner Download PDFInfo
- Publication number
- CN201169038Y CN201169038Y CNU2008200525457U CN200820052545U CN201169038Y CN 201169038 Y CN201169038 Y CN 201169038Y CN U2008200525457 U CNU2008200525457 U CN U2008200525457U CN 200820052545 U CN200820052545 U CN 200820052545U CN 201169038 Y CN201169038 Y CN 201169038Y
- Authority
- CN
- China
- Prior art keywords
- guidance tape
- runner
- dirty
- plate
- upper reaches
- 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 - Lifetime
Links
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 238000001746 injection moulding Methods 0.000 claims abstract description 10
- 238000007599 discharging Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 19
- 238000004513 sizing Methods 0.000 description 16
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000032683 aging Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 235000019628 coolness Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model relates to a rubber injection molding cold runner which comprises a hot plate, and a heat insulating plate is arranged on the hot plate. Two lower runner plates and three backing plates are arranged on the heat insulating plate, and two backing plates and an upper runner plate are arranged on the two lower runner plates and the three backing plates, a mounting plate is arranged on the two backing plates and the upper runner plate, and two sprue bushings are arranged on the mounting plate, two material feeding openings which are separately arranged along the longitudinal direction are arranged above the upper runner plate, the bottom parts of the sprue bushings are connected with the runner inlet of the upper runner plate, and the two runner outlets of the upper runner plate are respectively connected with the main runners of the two lower runner plates, four subchannels are respectively arranged at the lower parts of the material inlets of the two lower runners, and each subchannel is connected with a cold runner nozzle body and a nozzle. The rubber injection molding cold runner has the advantages that cooling channels are arranged at the lower parts of the runners of the upper runner plate and two lower runner plates, and the cooling channels of the lower runner plates are communicated with all nozzle bodies.
Description
Technical field
The utility model relates to the cold runner of a kind of runner of injection molding of rubber, particularly a kind of injection molding of rubber.
Background technology
In existing injection molding of rubber technology, a kind of is to adopt hot flow path, and the sizing material after injection device will plastify directly injects mould by hot flow path through nozzle.Temperature when plastifying because of sizing material is higher, accept the heat that hot plate and mould import into when the nozzle and temperature is further raise, be easy near curing temperature, when injection finished, not only the sizing material in the hot flow path can vulcanize, and stayed sizing material in the nozzle and also usually cured and form aging glue, these aging glue are blocked nozzle, influence the injection of next mould, often need manually remove, have a strong impact on production efficiency; Another kind is a cold runner, the cold runner of using has only a feeding mouth and four discharging openings at present, owing to be subjected to the restriction of flow channel length, only being suitable for short product uses, when product was longer, the also corresponding lengthening of runner, the sizing material resistance in runner increased, pressure reduces after entering mould, easily makes product defectives such as material or compactness difference occur lacking.Therefore the cold runner of using at present can't satisfy the needs than long products processing.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art and a kind of novel injection molding of rubber cold runner is provided.
The technical solution of the utility model is: a kind of cold runner of injection molding of rubber, it comprises a hot plate, on hot plate, be provided with a thermal insulation board, on thermal insulation board, be provided with two dirty guidance tapes and three backing plates, two dirty guidance tapes are located at respectively between three backing plates, are provided with two backing plates and a upper reaches guidance tape on two dirty guidance tapes and three backing plates, and the upper reaches guidance tape is located between two backing plates, on two backing plates and upper reaches guidance tape, be provided with an installing plate, on installing plate, be provided with two sprue bush.Be provided with two feeding mouths arranged apart along its length on the guidance tape of upper reaches, the bottom of sprue bush links to each other with the runner import of upper reaches guidance tape, two discharging openings of the following relative set of upper reaches guidance tape.Dirty guidance tape is two, every is provided with a feeding mouth, the feeding mouth of dirty guidance tape connects two discharging openings of upper reaches guidance tape respectively, both two of the upper reaches guidance tape runner exits connected the sprue of two dirty guidance tapes respectively, four runners are respectively established in the bottom of two dirty guidance tape feeding mouths, each runner connects a cold runner nozzle body and nozzle, totally eight nozzles.Runner bottom at upper reaches guidance tape and two dirty guidance tapes is provided with the cooling duct, and the cooling duct of dirty guidance tape is communicated with each nozzle body, and nozzle body and nozzle pass hot plate and connect mould.
Sizing material injects sprue bush by injection device, enters the sprue of dirty guidance tape respectively through the upper reaches guidance tape, enters nozzle body respectively through runner again, is injected to mould by the nozzle that is installed on the nozzle body.
Be set to the process of nozzle from cast gate at sizing material, four the tunnel independently cold oil enter upper reaches guidance tape and dirty guidance tape and nozzle body respectively from IN1, IN2, IN3 and IN4, flow out from OUT1, OUT2, OUT3 and OUT4 again, circularly sizing material is cooled off, and can regulate according to sizing material is temperature required.Sizing material enters in two runners of upper runner plate after two sprue bush inject a cold runner feeding mouth, carry out the cooling first time through cold oil, the connector of sizing material between two-layer runner plate enters dirty guidance tape subsequently, in the runner of dirty guidance tape, after cooling off for the second time, enter each nozzle body, in nozzle body, cool off for the third time again, inject mould through nozzle then.
The utility model compared with prior art has following characteristics:
1. owing to taked three coolings, although sizing material is the still influence of heated sheet and mold heat when the nozzle, temperature has rising, but the initial temperature that sizing material enters before the nozzle reduces, thereby the temperature of sizing material in nozzle can not reach curing temperature, the sizing material of staying after injection finishes in the nozzle can not cure, thereby avoids the problem of aging glue.
2. adopt two feeding mouths and eight discharging openings, the length that guarantees each runner satisfies sizing material and flows into die cavity smoothly and do not produce excessive resistance, because two feeding mouths and corresponding discharging opening are arranged apart along the length direction of cold runner, the total length of cold runner is compared and can be doubled with existing cold runner, the length of product once-forming also doubles, and has satisfied the needs of long products processing.
Below in conjunction with the drawings and specific embodiments detailed structure of the present utility model is further described.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is the vertical view of accompanying drawing 1;
Accompanying drawing 3 is the A-A cutaway view (for convenient with the aid of pictures, dirty guidance tape 5 and dirty guidance tape 6 being cut open along the runner axis) of accompanying drawing 1.
The specific embodiment
As shown in drawings: a kind of cold runner of injection molding of rubber, it comprises a hot plate 11, on hot plate 11, be provided with a thermal insulation board 10, on thermal insulation board 10, be provided with dirty guidance tape 5, dirty guidance tape 6 and three backing plates 9,12,13, dirty guidance tape 5 is located between backing plate 9 and the backing plate 13, dirty guidance tape 6 is located between backing plate 9 and the backing plate 12, at dirty guidance tape 5, dirty guidance tape 6 and three backing plates 9,12,13 are provided with two backing plates 2,14 and upper reaches guidance tapes 4, upper reaches guidance tape 4 is located at two backing plates 2, between 14, at backing plate 2,14 and upper reaches guidance tape 4 be provided with an installing plate 1, be provided with two sprue bush 3 on installing plate 1, the bottom of sprue bush 3 links to each other with the runner import of upper reaches guidance tape 4.Be provided with two feeding mouths arranged apart along its length on upper reaches guidance tape 4, the bottom of sprue bush 3 links to each other with the runner import of upper reaches guidance tape 4, two discharging openings of the following relative set of upper reaches guidance tape 4.Dirty guidance tape 5 and dirty guidance tape 6 are divided into two, every is provided with a feeding mouth, the feeding mouth of dirty guidance tape 5 and dirty guidance tape 6 is connected two discharging openings of upper reaches guidance tape respectively, both two of upper reaches guidance tape 4 runner exits connected the sprue of dirty guidance tape 5 and dirty guidance tape 6 respectively, four runners are respectively established in the bottom of dirty guidance tape 5 and dirty guidance tape 6 feeding mouths, each runner connects a cold runner nozzle body 7 and nozzle 8, totally eight nozzles.Runner bottom at upper reaches guidance tape 4, dirty guidance tape 5 and dirty guidance tape 6 is provided with the cooling duct, and the cooling duct of dirty guidance tape 5 and dirty guidance tape 6 is communicated with each nozzle body 7, and nozzle body 7 and nozzle 8 pass hot plate 11 and connect moulds.
Claims (1)
1, a kind of cold runner of injection molding of rubber, it is characterized in that: it comprises a hot plate (11), on hot plate (11), be provided with a thermal insulation board (10), on thermal insulation board (10), be provided with dirty guidance tape (5), dirty guidance tape (6) and three backing plates (9), (12), (13), dirty guidance tape (5) is located between backing plate (9) and the backing plate (13), dirty guidance tape (6) is located between backing plate (9) and the backing plate (12), in dirty guidance tape (5), dirty guidance tape (6) and three backing plates (9), (12), (13) be provided with two backing plates (2), (14) and a upper reaches guidance tape (4), upper reaches guidance tape (4) is located at two backing plates (2), (14) between, in backing plate (2), (14) and upper reaches guidance tape (4) be provided with an installing plate (1), on installing plate (1), be provided with two sprue bush (3), on upper reaches guidance tape (4), be provided with two feeding mouths arranged apart along its length, the bottom of sprue bush (3) links to each other with the runner import of upper reaches guidance tape (4), two discharging openings of the following relative set of upper reaches guidance tape (4), dirty guidance tape (5) and dirty guidance tape (6) are divided into two, every is provided with a feeding mouth, the feeding mouth of dirty guidance tape (5) and dirty guidance tape (6) is connected two discharging openings of upper reaches guidance tape (4) respectively, both two runner exits of upper reaches guidance tape (4) connected the sprue of dirty guidance tape (5) and dirty guidance tape (6) respectively, four runners are respectively established in the bottom of dirty guidance tape (5) and dirty guidance tape (6) feeding mouth, each runner connects a cold runner nozzle body (7) and nozzle (8), totally eight nozzles, in upper reaches guidance tape (4), the runner bottom of dirty guidance tape (5) and dirty guidance tape (6) is provided with the cooling duct, and the cooling duct of dirty guidance tape (5) and dirty guidance tape (6) is communicated with each nozzle body (7), and nozzle body (7) and nozzle (8) pass hot plate (11) and connect mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200525457U CN201169038Y (en) | 2008-03-13 | 2008-03-13 | Rubber injecting molded cold runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200525457U CN201169038Y (en) | 2008-03-13 | 2008-03-13 | Rubber injecting molded cold runner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201169038Y true CN201169038Y (en) | 2008-12-24 |
Family
ID=40208091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200525457U Expired - Lifetime CN201169038Y (en) | 2008-03-13 | 2008-03-13 | Rubber injecting molded cold runner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201169038Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244621B (en) * | 2008-03-13 | 2013-01-23 | 衡阳华意机械有限公司 | Rubber injection moulding cold flow path |
| CN106182627A (en) * | 2016-08-30 | 2016-12-07 | 健大电业制品（昆山）有限公司 | A kind of bakelite material cold runner system |
-
2008
- 2008-03-13 CN CNU2008200525457U patent/CN201169038Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244621B (en) * | 2008-03-13 | 2013-01-23 | 衡阳华意机械有限公司 | Rubber injection moulding cold flow path |
| CN106182627A (en) * | 2016-08-30 | 2016-12-07 | 健大电业制品（昆山）有限公司 | A kind of bakelite material cold runner system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081224 Effective date of abandoning: 20080313 |
|
| RGAV | Abandon patent right to avoid regrant |