CN104494074B - A kind of Preplasticizing injection moulding apparatus - Google Patents
A kind of Preplasticizing injection moulding apparatus Download PDFInfo
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- CN104494074B CN104494074B CN201410631290.XA CN201410631290A CN104494074B CN 104494074 B CN104494074 B CN 104494074B CN 201410631290 A CN201410631290 A CN 201410631290A CN 104494074 B CN104494074 B CN 104494074B
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- Prior art keywords
- bar
- injection
- shoots material
- shoots
- barrel
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Classifications
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- 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
- B29C45/54—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston and plasticising screw
-
- 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
- B29C45/02—Transfer moulding, i.e. transferring the required volume of moulding material by a plunger from a "shot" cavity into a mould cavity
-
- 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
- B29C45/60—Screws
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
nullThe invention discloses a kind of Preplasticizing injection moulding apparatus，Mainly include that an inside is provided with plasticizing system and the injecting systems of an improvement of plasticized screw，The two arranged in parallel，And the two barrel front end is by the conduit UNICOM being provided with check (non-return) valve，Heating mantle it is distributed on barrel and conduit，Melt in order to supplies and realize melt insulation，Injecting systems is mainly by nozzle、Shoot material bar、Injection barrel、Discharge collecting chamber、Electric rotating machine、Shoot material bar Mobile base、Driving gear set、Slide rail and injection cylinder composition，The bar Mobile base that shoots material is supported on slide rail，The bar that shoots material can be driven to have moved forward and backward action of injection by the injection cylinder being connected with the bar back segment end that shoots material，The present invention is compared with original technology，By arranging helicla flute at the leading portion on bar that shoots material，And make, by driving actuating device, the bar rotation that shoots material，The residual material in bar gap of shooting material pushes in discharge collecting chamber outside cylinder，The problem making material coking and different batches material pollute effectively is solved，Simple in construction，Effect is obvious.
Description
Technical field
The present invention relates to injection mo(u)lding field, especially a kind of Preplasticizing injection moulding apparatus.
Background technology
Preplasticizing is to improve thermoplastic injection molding efficiency and a kind of process of quality for injection mo(u)lding.Plasticizing and note
Penetrating and carry out in two barrels or region respectively, thermoplastic resin can be made to be heated evenly, during injection, pressure is consistent, reduces product
Internal pressure, is conducive to manufacturing the goods of thin-walled.Utilize carry out preplasticizing the cool time after molding simultaneously, equipment can be increased
Plasticizing capacity, shorten the operation cycle, improve production capacity.This technology is used widely at injection molding apparatus.
Existing Preplasticizing injection moulding apparatus typically comprise set the injection barrel of the bar that shoots material in one and one be internally provided with
The plasticizing charging barrel of the plasticizing apparatus of such as screw rod or plunger, described injection barrel and the arrangement of plasticizing charging barrel block form, and pass through
The resin duct being connected to two barrel front ends interconnects.But in the injection barrel of Preplasticizing injection moulding apparatus, injection rod with
There is gap in barrel.In injection process, part melt can enter and long-term existence wherein, until the melt of rotten coking exists
In the bar that shoots material reciprocating motion, trace penetrates in the melt to be injected injecting barrel and has a strong impact on quality of item, causes goods speckle occur
The defects such as point and indenture；Simultaneously when changing the different types of material of different colours and carrying out other batch production of articles, in injection
Bar can cause goods to pollute with this batch of salvage stores in injection barrel gap.ZL99109847.1 discloses a kind of Preplasticizing type
Injection moulding apparatus, uses the mode delivery space residual material arranging multiple boring at the barrel wall of the rod rear end that shoots material, but this side
It is low to there is such as discharge efficiency in formula, the problems such as residual material still suffers from more, inconvenient operation.
Summary of the invention
The present invention proposes a kind of Preplasticizing injection moulding apparatus, and discharging structure and marker method to its material injection device improve,
Solve the problem that in injection barrel and the bar gap that shoots material, residual material difficulty is discharged.
For achieving the above object, the present invention by the following technical solutions: a kind of Preplasticizing injection moulding apparatus, mainly include one
Inside is provided with the plasticizing system of plasticized screw and an injecting systems improved, the two arranged in parallel, and the two barrel front end by
It is provided with the conduit UNICOM of check (non-return) valve, barrel and conduit are distributed heating mantle, melt and realize melt insulation in order to supplies.
Injecting systems mainly by nozzle, the bar that shoots material, injection barrel, discharge collecting chamber, electric rotating machine, shoot material bar Mobile base, transmission
Gear train, slide rail and injection cylinder composition.The bar leading portion diameter that shoots material is identical with injection material cartridge type chamber diameter, and is provided with helicla flute；
The bar stage casing diameter that shoots material is less than shooting material bar leading portion diameter, more than shooting material bar back segment diameter；The bar back segment that shoots material moves through the bar that shoots material
Seat is also secured to, and makes the two to produce moving axially relative；Electric rotating machine is fixed on above the bar Mobile base that shoots material, and passes through
Driving gear set is connected with the bar back segment that shoots material, and it can be driven to rotate；The bar Mobile base that shoots material is supported on slide rail, by with shoot material
The injection cylinder that bar back segment end is connected can drive the bar that shoots material to move forward and backward action of injection.Discharge collecting chamber is positioned at injection material
Cylinder bottom, and with injection material cartridge type chamber end UNICOM.
One Preplasticizing injection moulding apparatus of the present invention, the length of the described bar leading portion that shoots material and spiral fluted pitch, the degree of depth,
Cross sectional shape can set according to material performance, in the case of ensureing excellent sealing, improves the efficiency of discharge.
One Preplasticizing injection moulding apparatus of the present invention, the described bar leading portion spiral fluted head number that shoots material can set as the case may be
It is set to one or more, in the case of ensureing excellent sealing, improves the efficiency of discharge.
One Preplasticizing injection moulding apparatus of the present invention, described discharging method is as follows, enters injection after this batches plastifies
Barrel, the bar that now shoots material is positioned at barrel high order end, and the bar that shoots material rotates, and makes material screw in the bar side that shoots material, and material enters spiral shell
Spin slot, and move with the upper batch residual material one screw thread other end in the same direction in shoot material bar and cartridge wall gap.Along with new after plasticizing
The continuous entrance of material, the bar position that shoots material the most constantly moves right, and rotates always, and the buildup in the bar stage casing that shoots material increases, and
Move right, to barrel extreme right position, be provided with unloading house's entrance, along with the bar that shoots material continues to move right, shoot material
The material in gap, bar stage casing is pressed into unloading house, and is collected.Therefore going up batch residual material will not be with this batches new
Directly contact in the bar front end barrel that shoots material, but discharge from the bar stage casing that shoots material and make material from pollution.Make with a collection of system
During product, after multiple molding cycles, carry out a discharge, get rid of the melt in helicla flute and gap, it is to avoid melt exists for a long time
There is coking phenomenon in gap, is first moved by the bar that shoots material on the leftmost side to injection barrel, discharging process and above-mentioned row during discharge
The method of batches is identical.Discharge collecting chamber can arrange temperature control system and discharge gate, it is ensured that the material of discharge be maintained at low temperature or
Clear up away in time.
One Preplasticizing injection moulding apparatus of the present invention, in described discharging process, can open oil cylinder to the bar injection direction that shoots material
Thering is provided certain operating pressure, the bar that makes material pressure to shoot material does not moves, and now feeds virgin material, can promote material
Helicla flute from the bar front end that shoots material enters the bar stage casing that shoots material, and accelerates discharge, cylinder efficient and a period of time is provided pressure after,
Stopping oil cylinder, the bar that shoots material under the going successively to of material continues to move right, and to die cavity extreme position, this process will shoot material bar
The buildup in stage casing enters discharge collecting chamber.
The present invention is compared with original technology, by arranging helicla flute on bar shooting material, and by driving actuating device to make the bar that shoots material
Rotating, the residual material in the bar gap that shoots material pushes in collecting chamber outside cylinder, makes what material coking and different batches material polluted to ask
Topic is effectively solved, and simple in construction, effect is obvious.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of Preplasticizing injection moulding apparatus of the present invention.
Fig. 2 is the bar schematic diagram that shoots material in one Preplasticizing injection moulding apparatus of the present invention.
In figure: 1-plasticizing system, 2-connects conduit, 3-heating mantle, 4-check (non-return) valve, 5-injecting systems, 6-nozzle, and 7-shoots material bar,
7a-shoots material bar leading portion, and 7b-shoots material bar stage casing, and 7c-shoots material bar back segment, and 8-injects barrel, 9-discharge collecting chamber, and 10-shoots material bar
Mobile base, 11-driving gear set, 12-motor transmission shaft, 13-electric rotating machine, 14-slide rail, 15-injection cylinder
Detailed description of the invention
As it is shown in figure 1, one Preplasticizing injection moulding apparatus of the present invention, it is provided with the plasticizing system of plasticized screw including an inside
1 and an injecting systems 5 improved, the two arranged in parallel, and the two barrel front end is by the conduit 2 being provided with check (non-return) valve 4
Logical, plasticizing charging barrel, injection barrel and conduit are distributed heating mantle 3, melt and realize melt insulation in order to supplies.Change
The injecting systems 5 entered mainly by nozzle 6, the bar 7 that shoots material, injection barrel 8, discharge collecting chamber 9, electric rotating machine 13, shoot material
Bar Mobile base 10, driving gear set 11, slide rail 14 and injection cylinder 15 form.The bar leading portion 7a as in figure 2 it is shown, shoot material
Diameter is identical with injection material cartridge type chamber diameter, and is provided with helicla flute；Leading portion 7a is straight for bar less than shooting material for the bar stage casing 7b diameter that shoots material
Footpath, more than shooting material bar back segment 7c diameter；The bar back segment 7c that shoots material is through shooting material bar Mobile base 10, by shooting material bar back segment 7c's
The shaft shoulder positions, and makes the two to produce moving axially relative；Electric rotating machine 13 is fixed on above the bar Mobile base 10 that shoots material, logical
Cross driving gear set 11 and be connected with the bar back segment 7c that shoots material, it can be driven to rotate；The bar Mobile base 10 that shoots material be supported in two or with
On slide rail 14 on, the bar 7 that shoots material can be driven to have moved forward and backward by the injection cylinder 15 being connected with the bar back segment 7c end that shoots material
Become action of injection.Discharge collecting chamber 9 is positioned at injection barrel 8 bottom, and with injection barrel 8 die cavity end UNICOM.Shoot material bar
The length of leading portion 7a and spiral fluted pitch, the degree of depth, cross sectional shape can set according to material performance, ensureing excellent sealing
In the case of, improve the efficiency of discharge.The bar leading portion 7a spiral fluted head number that shoots material can be set to as the case may be one or
A plurality of, in the case of ensureing excellent sealing, improve the efficiency of discharge.
One Preplasticizing injection moulding apparatus of the present invention, described discharging method is as follows, enters injection after this batches plastifies,
Barrel 8 front end, the bar 7 that now shoots material is positioned at barrel high order end, and the bar 7 that shoots material rotates, and makes material screw in bar 7 side that shoots material,
Material enters helicla flute, and moves with the upper batch residual material one screw thread other end in the same direction in shoot material bar 7 and barrel 8 wall gap
Dynamic.Along with the continuous entrance of virgin material after plasticizing, bar 7 position that shoots material the most constantly moves right, and rotates always, and shoot material bar
The buildup of stage casing 7b increases, and moves right, and is provided with discharge collecting chamber 9 entrance to barrel extreme right position,
Along with shooting material, bar 7 continues to move right, and the material in the 7b gap, bar stage casing that shoots material is pressed into discharge collecting chamber 9, and is collected.
Therefore go up batch residual material directly to contact in new this batches barrel 8 on the left of the bar front end 7a that shoots material, but
Discharging from the bar stage casing 7b that shoots material makes material from pollution.When making with a collection of goods, after multiple molding cycles, carry out one
Secondary discharge, gets rid of the melt in helicla flute and gap, it is to avoid melt occurs coking phenomenon for a long time in gap, will penetrate during discharge
Material bar 7 moves the leftmost side to injection barrel 8, and discharging process batches method upper with above-mentioned row is identical.Described discharge
During, the operating pressure that injection cylinder 15 provides certain to the injection direction of the bar 7 that shoots material, the pressure to material can be opened
The power bar 7 that makes to shoot material does not moves, and now feeds virgin material, can promote that material enters from the helicla flute of the bar front end 7a that shoots material
Shoot material bar stage casing 7b, accelerates discharge, after injection cylinder 15 works and provides the pressure of a period of time, stops oil cylinder 15,
The bar 7 that shoots material under the going successively to of material continues to move right, and to die cavity extreme position, this process will shoot material bar stage casing 7b
Buildup enter discharge collecting chamber 9.
Claims (3)
1. a Preplasticizing injection moulding apparatus, mainly includes that an inside is provided with the plasticizing system of plasticized screw and an injecting systems improved, two
Person's arranged in parallel, and the two barrel front end is by being provided with the conduit UNICOM of check (non-return) valve, barrel and conduit is distributed heating mantle, melts in order to supplies
It is incubated with realizing melt, it is characterised in that: described injecting systems is mainly by nozzle, the bar that shoots material, injection barrel, discharge collecting chamber, electric rotating
Machine, the bar Mobile base that shoots material, driving gear set, slide rail and injection cylinder composition, the bar leading portion diameter that shoots material is identical with injection material cartridge type chamber diameter, and
It is provided with helicla flute；The bar stage casing diameter that shoots material is less than shooting material bar leading portion diameter, more than shooting material bar back segment diameter；The bar back segment that shoots material moves through the bar that shoots material
Seat is also fixed with the bar Mobile base that shoots material, and makes the two to produce moving axially relative；Electric rotating machine is fixed on above the bar Mobile base that shoots material, by passing
Moving gear group is connected with the bar back segment that shoots material, and the bar that shoots material can be driven to rotate；The bar Mobile base that shoots material is supported on slide rail, by with the bar back segment end that shoots material
The injection cylinder being connected can drive the bar that shoots material to move forward and backward action of injection；Discharge collecting chamber be positioned at injection barrel bottom, and with injection material cartridge type
Chamber end UNICOM.
A kind of Preplasticizing injection moulding apparatus the most according to claim 1, it is characterised in that: the described bar leading portion spiral fluted head that shoots material is several
It is set to one or more according to concrete condition.
A kind of Preplasticizing injection moulding apparatus the most according to claim 1, it is characterised in that: discharge collecting chamber arranges temperature control system and discharge gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410631290.XA CN104494074B (en) | 2014-11-05 | 2014-11-05 | A kind of Preplasticizing injection moulding apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410631290.XA CN104494074B (en) | 2014-11-05 | 2014-11-05 | A kind of Preplasticizing injection moulding apparatus |
Publications (2)
| Publication Number | Publication Date |
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| CN104494074A CN104494074A (en) | 2015-04-08 |
| CN104494074B true CN104494074B (en) | 2016-10-05 |
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| CN201410631290.XA Active CN104494074B (en) | 2014-11-05 | 2014-11-05 | A kind of Preplasticizing injection moulding apparatus |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105835321A (en) * | 2016-05-18 | 2016-08-10 | 荣成荣鹰橡胶制品有限公司 | Molding equipment for solid tyres |
| CN107521058B (en) * | 2017-09-27 | 2019-06-14 | 重庆市魏来雄鑫橡塑制品有限责任公司 | Injection moulding process for auto parts |
| CN107984683A (en) * | 2017-11-29 | 2018-05-04 | 苏州南诚塑料制品有限公司 | A kind of screw injection melding injection molding machine |
| CN110861275B (en) * | 2019-10-29 | 2024-07-23 | 泉州市世创机械制造有限公司 | EVA raw material extrusion device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08207107A (en) * | 1995-02-02 | 1996-08-13 | Mitsubishi Heavy Ind Ltd | Temperature regulator of injection plunger of tandem type injection molding machine |
| CN1249234A (en) * | 1994-03-18 | 2000-04-05 | 日精树脂工业株式会社 | Preplasticizing injection moulding apparatus |
| CN1796083A (en) * | 2004-12-23 | 2006-07-05 | 财团法人工业技术研究院 | Discharge device of injection moulding machine in two-stage type |
| CN101422955A (en) * | 2007-11-02 | 2009-05-06 | 联塑(杭州)机械有限公司 | Two-segment type ejection device |
| CN204278424U (en) * | 2014-11-05 | 2015-04-22 | 泰瑞机器股份有限公司 | A kind of Preplasticizing injection moulding apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030026869A1 (en) * | 2001-08-06 | 2003-02-06 | Charles Weber | Direct transfer conveying mechanism |
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2014
- 2014-11-05 CN CN201410631290.XA patent/CN104494074B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1249234A (en) * | 1994-03-18 | 2000-04-05 | 日精树脂工业株式会社 | Preplasticizing injection moulding apparatus |
| JPH08207107A (en) * | 1995-02-02 | 1996-08-13 | Mitsubishi Heavy Ind Ltd | Temperature regulator of injection plunger of tandem type injection molding machine |
| CN1796083A (en) * | 2004-12-23 | 2006-07-05 | 财团法人工业技术研究院 | Discharge device of injection moulding machine in two-stage type |
| CN101422955A (en) * | 2007-11-02 | 2009-05-06 | 联塑(杭州)机械有限公司 | Two-segment type ejection device |
| CN204278424U (en) * | 2014-11-05 | 2015-04-22 | 泰瑞机器股份有限公司 | A kind of Preplasticizing injection moulding apparatus |
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| CN104494074A (en) | 2015-04-08 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Hongwei Inventor after: Li Binbin Inventor after: Lin Wu Inventor after: Yang Weimin Inventor after: Ding Yumei Inventor after: Li Yuelin Inventor after: Hu Lingxiao Inventor before: Zhou Hongwei Inventor before: Li Binbin Inventor before: Lin Wu |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHOU HONGWEI LI BINBIN LIN WU TO: ZHOU HONGWEI LI BINBIN LIN WU YANG WEIMIN DING YUMEI LI YUELIN HU LINGXIAO |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |