CN101244621B - Rubber injection moulding cold flow path - Google Patents
Rubber injection moulding cold flow path Download PDFInfo
- Publication number
- CN101244621B CN101244621B CN 200810030827 CN200810030827A CN101244621B CN 101244621 B CN101244621 B CN 101244621B CN 200810030827 CN200810030827 CN 200810030827 CN 200810030827 A CN200810030827 A CN 200810030827A CN 101244621 B CN101244621 B CN 101244621B
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- guidance tape
- runner
- dirty
- plate
- backing plate
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Abstract
The invention relates to a rubber injection molding cold runner, which comprises a hot plate, a thermal insulation board is arranged on the hot plate, two lower runner plates and three padding plates are arranged on the thermal insulation board, two padding plates and one upper runner plate are respectively arranged on the two lower runner plates and three padding plates, a mounting plate is arranged on the two padding plates and upper runner plate, two gate sleeves are arranged on the mounting plate, two feeding openings that are arranged separately along the direction of length are arranged above the upper runner plate, the bottom part of the gate sleeve is connected with the runner inlet of the upper runner plate, two runner outlets of the upper runner plate are respectively connected with the main runner of two lower runner plates, four sub-runners are arranged below each feed inlet of the two lower runner plates, each sub-runner is connected with a cold runner nozzle body and a nozzle, a cooling channel is arranged below the runners of the upper runner plate and the two lower runner plates, moreover the cooling channel of the lower runner plate is communicated with each nozzle body.
Description
Technical field
The present invention 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 Development of Rubber Injection Molding 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, affect the injection of next mould, often need to manually remove, have a strong impact on production efficiency; Another kind is cold runner, the cold runner of using at present only has a feeding mouth and four discharging openings, owing to being subject to the restriction of flow channel length, be only suitable for using in shorter product, when product was longer, runner is corresponding lengthening also, and the resistance of sizing material in runner increases, pressure reduces after entering mould, easily makes product occur lack the defectives such as material or compactness is poor.Therefore the cold runner of using at present can't satisfy the needs than long products processing.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency of prior art and a kind of novel injection molding of rubber cold runner is provided.
Technical scheme of the present invention is: a kind of cold runner of injection molding of rubber, it comprises a hot plate, be provided with a thermal insulation board at hot plate, be provided with two dirty guidance tapes and three backing plates at thermal insulation board, two dirty guidance tapes are located at respectively between three backing plates, are provided with two backing plates and a upper reaches guidance tape at two dirty guidance tapes and three backing plates, and the upper reaches guidance tape is located between two backing plates, be provided with an installing plate at two backing plates and upper reaches guidance tape, be provided with two sprue bush at installing plate.Be provided with two along its length feeding mouths arranged apart 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 arranges a feeding mouth, the feeding mouth of dirty guidance tape connects respectively two discharging openings of upper reaches guidance tape, both two of the upper reaches guidance tape runner exits connected respectively the sprue of two dirty guidance tapes, 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 the hot plate connecting mold.
Sizing material injects sprue bush by injection device, enters respectively the sprue of dirty guidance tape through the upper reaches guidance tape, enters respectively nozzle body 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 respectively upper reaches guidance tape and dirty guidance tape and nozzle body from IN1, IN2, IN3 and IN4, flow out from OUT1, OUT2,0UT3 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, then inject mould through nozzle.
The present invention compared with prior art has following features:
1. owing to having taked three coolings, although sizing material is the still impact 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.
07]As shown in drawings: a kind of cold runner of injection molding of rubber, it comprises a hot plate 11, be provided with a thermal insulation board 10 at hot plate 11, be provided with the first dirty guidance tape 5 at thermal insulation board 10, the second dirty guidance tape 6 and three backing plates 9,12,13, described three backing plates are respectively the first backing plate 9, the second backing plate 12, the 3rd backing plate 13, the first dirty guidance tape 5 is located between the first backing plate 9 and the 3rd backing plate 13, the second dirty guidance tape 6 is located between the first backing plate 9 and the second backing plate 12, at the first dirty guidance tape 5, the second 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, described two backing plates are respectively the 4th backing plate 2, the 5th backing plate 14, upper reaches guidance tape 4 is located between the 4th backing plate 2 and the 5th backing plate 14, at the 4th backing plate 2, the 5th backing plate 14 and upper reaches guidance tape 4 are provided with an installing plate 1, be provided with two sprue bush 3 at 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 along its length feeding mouths arranged apart 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 is divided into two, respectively the first dirty guidance tape 5 and the second dirty guidance tape 6, every arranges a feeding mouth, the first dirty guidance tape 5 be connected the feeding mouth of dirty guidance tape 6 and connect respectively two discharging openings of upper reaches guidance tape 4, both two of upper reaches guidance tape 4 runner exits connected respectively the sprue of the first dirty guidance tape 5 and the second dirty guidance tape 6, four runners are respectively established in the bottom of the first dirty guidance tape 5 and the second 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, the first dirty guidance tape 5 and the second dirty guidance tape 6 is provided with the cooling duct, and the cooling duct of the first dirty guidance tape 5 and the second dirty guidance tape 6 is communicated with each nozzle body 7, and nozzle body 7 and nozzle 8 pass hot plate 11 connecting molds.
Description of drawings
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is the top 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, be provided with a thermal insulation board 10 at hot plate 11, be provided with the first dirty guidance tape 5 at thermal insulation board 10, the second dirty guidance tape 6 and three backing plates 9,12,13, described three backing plates are respectively the first backing plate 9, the second backing plate 12, the 3rd backing plate 13, the first dirty guidance tape 5 is located between the first backing plate 9 and the 3rd backing plate 13, the second dirty guidance tape 6 is located between the first backing plate 9 and the second backing plate 12, at the first dirty guidance tape 5, the second 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, described two backing plates are respectively the 4th backing plate 2, the 5th backing plate 14, upper reaches guidance tape 4 is located between the 4th backing plate 2 and the 5th backing plate 14, at the 4th backing plate 2, the 5th backing plate 14 and upper reaches guidance tape 4 are provided with an installing plate 1, be provided with two sprue bush 3 at 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 along its length feeding mouths arranged apart 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 is divided into two, respectively the first dirty guidance tape 5 and the second dirty guidance tape 6, every arranges a feeding mouth, the first dirty guidance tape 5 be connected the feeding mouth of dirty guidance tape 6 and connect respectively two discharging openings of upper reaches guidance tape 4, both two of upper reaches guidance tape 4 runner exits connected respectively the sprue of the first dirty guidance tape 5 and the second dirty guidance tape 6, four runners are respectively established in the bottom of the first dirty guidance tape 5 and the second 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, the first dirty guidance tape 5 and the second dirty guidance tape 6 is provided with the cooling duct, and the cooling duct of the first dirty guidance tape 5 and the second dirty guidance tape 6 is communicated with each nozzle body 7, and nozzle body 7 and nozzle 8 pass hot plate 11 connecting molds.
Claims (1)
1. the cold runner of an injection molding of rubber, it is characterized in that: it comprises a hot plate (11), be provided with a thermal insulation board (10) at hot plate (11), be provided with the first dirty guidance tape (5) at thermal insulation board (10), the second dirty guidance tape (6) and three backing plates (9,12,13), described three backing plates are respectively the first backing plate (9), the second backing plate (12), the 3rd backing plate (13), the first dirty guidance tape (5) is located between the first backing plate (9) and the 3rd backing plate (13), the second dirty guidance tape (6) is located between the first backing plate (9) and the second backing plate (12), at the first dirty guidance tape (5), the second 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), described two backing plates are respectively the 4th backing plate (2), the 5th backing plate (14), upper reaches guidance tape (4) is located between the 4th backing plate (2) and the 5th backing plate (14), in the 4th backing plate (2), the 5th backing plate (14) and upper reaches guidance tape (4) are provided with an installing plate (1), be provided with two sprue bush (3) at installing plate (1), on upper reaches guidance tape (4), be provided with two along its length feeding mouths arranged apart, 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 is divided into two, respectively the first dirty guidance tape (5) and the second dirty guidance tape (6), every arranges a feeding mouth, the first dirty guidance tape (5) be connected the feeding mouth of dirty guidance tape (6) and connect respectively two discharging openings of upper reaches guidance tape (4), both two runner exits of upper reaches guidance tape (4) connected respectively the sprue of the first dirty guidance tape (5) and the second dirty guidance tape (6), four runners are respectively established in the bottom of the first dirty guidance tape (5) and the second 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 the first dirty guidance tape (5) and the second dirty guidance tape (6) is provided with the cooling duct, and the cooling duct of the first dirty guidance tape (5) and the second dirty guidance tape (6) is communicated with each nozzle body (7), and nozzle body (7) and nozzle (8) pass hot plate (11) connecting mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810030827 CN101244621B (en) | 2008-03-13 | 2008-03-13 | Rubber injection moulding cold flow path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810030827 CN101244621B (en) | 2008-03-13 | 2008-03-13 | Rubber injection moulding cold flow path |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101244621A CN101244621A (en) | 2008-08-20 |
| CN101244621B true CN101244621B (en) | 2013-01-23 |
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ID=39945404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810030827 Expired - Fee Related CN101244621B (en) | 2008-03-13 | 2008-03-13 | Rubber injection moulding cold flow path |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101244621B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101607430B (en) * | 2009-05-05 | 2012-07-04 | 东华机械有限公司 | Cold flow-passage floating nozzle structure of rubber injection machine |
| CN102107497A (en) * | 2009-12-28 | 2011-06-29 | 海尔集团公司 | Double-layer splitter plate hot runner |
| CN102092121B (en) * | 2010-12-09 | 2013-03-27 | 浙江德玛克机械有限公司 | Injection-mould hot runner plate |
| CN102267220A (en) * | 2011-08-04 | 2011-12-07 | 苏州腾行精密模具有限公司 | Runner structure for injection molding of rubber tube |
| CN102689414A (en) * | 2012-06-14 | 2012-09-26 | 苏州腾行精密模具有限公司 | Mould runner structure and rubber mould with same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0960714A2 (en) * | 1996-10-14 | 1999-12-01 | Schöttli Ag | Hot runner injection mould |
| CN2915464Y (en) * | 2006-03-23 | 2007-06-27 | 衡阳华意机械有限公司 | Cold flow passage board multiple-nozzle injection transfer molding rubber device |
| CN200940240Y (en) * | 2006-03-24 | 2007-08-29 | 广东工业大学 | Mould for injection and compression formation of articles |
| CN201169038Y (en) * | 2008-03-13 | 2008-12-24 | 衡阳华意机械有限公司 | Rubber injecting molded cold runner |
-
2008
- 2008-03-13 CN CN 200810030827 patent/CN101244621B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0960714A2 (en) * | 1996-10-14 | 1999-12-01 | Schöttli Ag | Hot runner injection mould |
| CN2915464Y (en) * | 2006-03-23 | 2007-06-27 | 衡阳华意机械有限公司 | Cold flow passage board multiple-nozzle injection transfer molding rubber device |
| CN200940240Y (en) * | 2006-03-24 | 2007-08-29 | 广东工业大学 | Mould for injection and compression formation of articles |
| CN201169038Y (en) * | 2008-03-13 | 2008-12-24 | 衡阳华意机械有限公司 | Rubber injecting molded cold runner |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2001-260185A 2001.09.25 |
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| Publication number | Publication date |
|---|---|
| CN101244621A (en) | 2008-08-20 |
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Granted publication date: 20130123 Termination date: 20160313 |
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| CF01 | Termination of patent right due to non-payment of annual fee |