CN104527006A - Internally heating hot runner system - Google Patents
Internally heating hot runner system Download PDFInfo
- Publication number
- CN104527006A CN104527006A CN201410802965.2A CN201410802965A CN104527006A CN 104527006 A CN104527006 A CN 104527006A CN 201410802965 A CN201410802965 A CN 201410802965A CN 104527006 A CN104527006 A CN 104527006A
- Authority
- CN
- China
- Prior art keywords
- nozzle body
- nozzle
- hot runner
- spraying nozzle
- heating
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 39
- 239000007787 solid Substances 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005507 spraying Methods 0.000 abstract 8
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008439 repair process 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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7331—Heat transfer elements, e.g. heat pipes
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides an internally heating hot runner system. The internally heated hot runner system comprises a spraying nozzle body; a heating rod is embedded into the center of the spraying nozzle body; a spraying nozzle insert is arranged in the upper part of the spraying nozzle body and is in interference fit with the spraying nozzle body; and the lead of the heating rod is fixed by a high-temperature resistant solid adhesive. The heating rod which is arranged in the spraying nozzle body to serve as a heating element is used for heating the tip of the spraying nozzle body to a temperature capable of melting a medium in a hot runner. The internally heating hot runner system provided by the invention overcomes the defects of the prior art, is simple in structure and small in size, is convenient to manufacture and install, is not easy to interfere with a mould and is highly flexible. In addition, the heating hot runner system is low in risk of gel leakage of the spraying nozzle body and dispenses with the phenomenon that a plurality of components of the traditional structure are matched by threads. Moreover, the internally heating hot runner system can be maintained and changed easily and rapidly and has a little influence to production.
Description
Technical field
The present invention relates to a kind of TOP-TIP realized by inner principle of heating, belong to Hot runner Technology field.
Background technology
Hot flow path (hot runner) uses in injection mold, is to adopt adiabatic or heating means to the running gate system of injection mold, makes its plastic melt remain molten condition, thus avoids producing the solidifying material of running gate system.The application of Hot runner Technology can save raw material, reduces costs; Shorten molding cycle, improve machine efficiency; Improve products surface quality and mechanical property.TOP-TIP is different according to the mode of thermal compensation, and can be divided into internal heat type TOP-TIP and external heating type heat flow passage system, for internal heat type TOP-TIP, studies in China is very few.
Plain edition external heating type heat flow passage system, as shown in Figure 1, is made up of begin to speak plate 7, flow distribution plate 8 and main burner 9 of the nozzle of nozzle body 1, spring heating collar 2, core body sleeve 3, nozzle core 4, jump ring 5, sealing ring 6, mould.Nozzle body 1 and spring heating collar 2 are interference fit, nozzle body 1 and jump ring 5 are that small―gap suture fits through and is threaded, nozzle core 4 is enclosed within after outside spring heating collar 2, blocked with the begin to speak jump ring of plate 7 of the nozzle of mould, main burner 9 and nozzle body 1 are all that bolt is connected, the shortcoming of this structure is: system temperature is almost suitable with plastic processing temperature, and heat loss is large, needs to adopt good measure; Its construction package can produce thermal expansion from room temperature to operating temperature, thermal expansion during installation and debugging in necessary budgetary structure, and at room temperature balanced installation, debugs successfully under just guaranteeing operating temperature, and installation process is complicated; And good sealing effectiveness must be had, if design, processing, assembling, injection technique is improper etc. all likely causes leakage glue, burn failure may be caused time serious, even cause stopping production.
Summary of the invention
It is simple that the technical problem to be solved in the present invention is to provide a kind of structure, and making and installation is convenient, and with low cost, volume is little, flexibility is large and the TOP-TIP realized by inner principle of heating of convenient for maintaining and replacing.
In order to solve the problems of the technologies described above, technical scheme of the present invention is to provide a kind of internal heat type TOP-TIP, it is characterized in that: comprise nozzle body, heating rod is embedded in nozzle body center, nozzle mold insert is located at nozzle body upper inner and is interference fit with nozzle body, and the lead-in wire of heating rod is fixed by high temperature resistant solid gum.
Preferably, be equipped with runner in described nozzle mold insert and nozzle body, the runner in nozzle mold insert is connected with the runner in nozzle body.
Preferably, by arranging described heating rod as heater element in nozzle body inside, the sharp-tongued temperature of ordering about nozzle body reaches and medium in runner can be made to be in molten condition.
Preferably, when described nozzle mold insert and nozzle body assemble, first nozzle body is heated, nozzle mold insert is cooled, then by nozzle mold insert press-in nozzle body.
During internal heat type TOP-TIP work provided by the invention, plastic cement melt body is injected in nozzle mold insert by the machine mouth of injection machine, and melt body divides prong flow nozzle body runner to enter into mold cavity by nozzle mold insert.Nozzle body must provide heat by heating rod, therefore plastic cement can flow with molten condition in the entire system always.
System provided by the invention overcomes the deficiencies in the prior art, and structure is simple, and make and install all more convenient, and volume is little, not easily interfere with mould, flexibility is large; Decrease the risk that nozzle leaks glue, eliminate the phenomenon of the multiple accessory of traditional structure by threaded engagement; Keep in repair and change more simple and quick, minimum to Influence of production.
Accompanying drawing explanation
Fig. 1 is traditional hot runner system structure schematic diagram;
Fig. 2 is internal heat type hot runner system structure front view provided by the invention;
Fig. 3 is internal heat type hot runner system structure top view provided by the invention.
Detailed description of the invention
For making the present invention become apparent, hereby with a preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
Fig. 2 and Fig. 3 is respectively internal heat type hot runner system structure front view provided by the invention and top view, and described internal heat type TOP-TIP comprises heating rod 30, and heating rod 30 adopts German Hotset brand, carry temp.-sensing wire, evenly, reliability is strong, goes between high temperature resistant more than 400 DEG C in heating.Heating rod 30 surface temperature can reach 700 DEG C, guarantees that meeting all plastic material colloidal sol uses.Heating rod 30 is embedded in nozzle body 10 center, makes it play the characteristic of homogeneous heating.Nozzle body 10 adopts thermal conductance better and has corrosion-resistant strength materials and makes.
The process of internal heat type TOP-TIP provided by the invention is as follows:
Step 1: nozzle body 10 adopts import S136 material to make, rough turn made allowance; After quenching, play heating rod 30 and deep hole is installed; Heating rod is steadily loaded, avoids air not drain only, cause heating rod to be installed not in place; Heating rod is in place, and carries out size detection, confirms to carry out next procedure.
Step 2: the rough turn made allowance of nozzle mold insert 20, is finish-machined to after quenching and requires size (nozzle mold insert appearance and size is greater than nozzle body size and carries out interference fit); Utilize heating tool that nozzle body 10 temperature is added to 500 DEG C, take out after utilizing negative 600 degree of liquid nitrogens that nozzle mold insert 20 is cooled 30 minutes; Heat is utilized to join principle by nozzle mold insert 20 hydraulic press press-in nozzle body 10; Cooling; Nozzle preliminary working completes;
Step 3: nozzle is carried out finished profile to finally requiring size; Nozzle mold insert 20 is removed with nozzle body 10 cooperation place fine finishining and is coordinated vestige; Whether close-fitting between checking each, the size with tolerance on inspection drawing, the depth of parallelism, axiality, perpendicularity etc., soften to flow regime by high temperature resistant solid gum 40, injection heating rod 30 lead-in wire places; Treat that its cooling is fixing, solid gum contouring is perfect, locks temperature resistant pipe; By the assembling of correct method, the overall size of inspection assembling after assembling, is strict controlled in the margin of tolerance.
During internal heat type TOP-TIP work provided by the invention, plastic cement melt body is injected in nozzle mold insert 20 by the machine mouth of injection machine, and melt body enters into mold cavity by nozzle mold insert 20 points of prong flow nozzle body 10 runners.Nozzle body 10 must provide heat by heating rod 30, therefore plastic cement can flow with molten condition in the entire system always.
Internal heat type TOP-TIP processing technology provided by the invention is simple, and without special material, cost is low; And volume is little, not easily by the interference such as cooling water and screw hole mold insert; Can according to die size flexible design; And the processing technology adopted very is innovated, use the method for expanding with heat and contract with cold to be heated by nozzle body, nozzle mold insert cools, and enables to play interference fit and heat cooperation better.The most significant advantage of the present invention is exactly directly utilize heating rod to heat, and driving power is about 50% of external heat system, and whole system constantly heats up, thus is covered to nozzle and this segment distance of cast gate rapidly.Plastic material merges and solidifies is all near runner outer wall, thus makes system play heat insulation and sealing function; Because the plastic layer of cooling possesses splendid thermal insulation protection performance, therefore TOP-TIP is less on mold temperature impact.
Claims (4)
1. an internal heat type TOP-TIP, it is characterized in that: comprise nozzle body (10), heating rod (30) is embedded in nozzle body (10) center, nozzle mold insert (20) is located at nozzle body (10) upper inner and is interference fit with nozzle body (10), and the lead-in wire of heating rod (30) is fixed by high temperature resistant solid gum (40).
2. a kind of internal heat type TOP-TIP as claimed in claim 1, it is characterized in that: be equipped with runner in described nozzle mold insert (20) and nozzle body (10), the runner in nozzle mold insert (20) is connected with the runner in nozzle body (10).
3. a kind of internal heat type TOP-TIP as claimed in claim 2, it is characterized in that: by arranging described heating rod (30) as heater element in nozzle body (10) inside, the sharp-tongued temperature of ordering about nozzle body (10) reaches and medium in runner can be made to be in molten condition.
4. a kind of internal heat type TOP-TIP as claimed in claim 1, it is characterized in that: when described nozzle mold insert (20) and nozzle body (10) assemble, first nozzle body (10) is heated, nozzle mold insert (20) is cooled, then by nozzle mold insert (20) press-in nozzle body (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410802965.2A CN104527006B (en) | 2014-12-18 | 2014-12-18 | Internally heating hot runner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410802965.2A CN104527006B (en) | 2014-12-18 | 2014-12-18 | Internally heating hot runner system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104527006A true CN104527006A (en) | 2015-04-22 |
| CN104527006B CN104527006B (en) | 2017-05-17 |
Family
ID=52842726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410802965.2A Active CN104527006B (en) | 2014-12-18 | 2014-12-18 | Internally heating hot runner system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104527006B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2103424U (en) * | 1991-11-09 | 1992-05-06 | 天津市电冰箱工业公司 | Hot runner device of plastic injection molding die |
| CN2568398Y (en) * | 2002-09-26 | 2003-08-27 | 天津理工学院 | Offset cross internally heating multiple pouring heat runner of plastic injection mould |
| CN201506018U (en) * | 2009-09-25 | 2010-06-16 | 汉高股份有限及两合公司 | Injection mold and hot runner system for injection mold |
| CN201677470U (en) * | 2009-09-28 | 2010-12-22 | 陈义 | Hot runner nozzle mechanism |
| CN202498691U (en) * | 2012-02-02 | 2012-10-24 | 福州巨昂精密模具科技有限公司 | Plastic injection mold offset cross type internal heating multi-gating hot runner |
-
2014
- 2014-12-18 CN CN201410802965.2A patent/CN104527006B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2103424U (en) * | 1991-11-09 | 1992-05-06 | 天津市电冰箱工业公司 | Hot runner device of plastic injection molding die |
| CN2568398Y (en) * | 2002-09-26 | 2003-08-27 | 天津理工学院 | Offset cross internally heating multiple pouring heat runner of plastic injection mould |
| CN201506018U (en) * | 2009-09-25 | 2010-06-16 | 汉高股份有限及两合公司 | Injection mold and hot runner system for injection mold |
| CN201677470U (en) * | 2009-09-28 | 2010-12-22 | 陈义 | Hot runner nozzle mechanism |
| CN202498691U (en) * | 2012-02-02 | 2012-10-24 | 福州巨昂精密模具科技有限公司 | Plastic injection mold offset cross type internal heating multi-gating hot runner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104527006B (en) | 2017-05-17 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An internally heated hot runner system Effective date of registration: 20230306 Granted publication date: 20170517 Pledgee: Industrial and Commercial Bank of China Limited Shanghai Songjiang sub branch Pledgor: SHANGHAI SURE HOT RUNNER ELECTRICAL Co.,Ltd. Registration number: Y2023310000047 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |