CN104494074B - A kind of Preplasticizing injection moulding apparatus - Google Patents

A kind of Preplasticizing injection moulding apparatus Download PDF

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Publication number
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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China
Prior art keywords
bar
injection
shoots material
shoots
barrel
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CN201410631290.XA
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Chinese (zh)
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CN104494074A (en
Inventor
周宏伟
李斌斌
林武
杨卫民
丁玉梅
李月林
胡凌霄
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TEDERIC MACHINERY CO Ltd
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TEDERIC MACHINERY CO Ltd
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/46Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/53Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
    • B29C45/54Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston and plasticising screw
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/02Transfer moulding, i.e. transferring the required volume of moulding material by a plunger from a "shot" cavity into a mould cavity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/46Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58Details
    • B29C45/60Screws

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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

A kind of Preplasticizing injection moulding apparatus
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.
CN201410631290.XA 2014-11-05 2014-11-05 A kind of Preplasticizing injection moulding apparatus Active CN104494074B (en)

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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)

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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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030026869A1 (en) * 2001-08-06 2003-02-06 Charles Weber Direct transfer conveying mechanism

Patent Citations (5)

* Cited by examiner, † Cited by third party
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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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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