CN101422955B - Two-segment type ejection device - Google Patents
Two-segment type ejection device Download PDFInfo
- Publication number
- CN101422955B CN101422955B CN2007101566401A CN200710156640A CN101422955B CN 101422955 B CN101422955 B CN 101422955B CN 2007101566401 A CN2007101566401 A CN 2007101566401A CN 200710156640 A CN200710156640 A CN 200710156640A CN 101422955 B CN101422955 B CN 101422955B
- Authority
- CN
- China
- Prior art keywords
- material pipe
- injection
- piston rod
- pipe
- supporting base
- 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 - Fee Related
Links
- 239000000463 material Substances 0.000 claims abstract description 78
- 238000002347 injection Methods 0.000 claims abstract description 44
- 239000007924 injection Substances 0.000 claims abstract description 44
- 238000003763 carbonization Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 5
- 239000011344 liquid material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Images
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
- B29C45/46—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
- B29C45/542—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston and plasticising screw using an accumulator between plasticising and injection unit, e.g. for a continuously operating plasticising screw
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Nozzles (AREA)
Abstract
The invention relates to a two-part form injection mechanism, which comprises a screw material pipe filled with screws and an injection material pipe. The front end of the screw material pipe is connected to the injection material pipe through a communicating pipe, which is provided with a check valve; the screw is connected with a rotation driving mechanism, the front end of the injection material pipe is filled with a nozzle and the back part is provided with a circular mounting base, in which a piston rod can be arranged in a sliding way and matches with the mounting base in a sealed way; a gap exists between the piston rod and the wall of the injection material, the piston rod is connected with a pushing cylinder; and the material input port of the injection material pipe is at the front end of the mounting base. The two-part form injection mechanism has the advantages of the avoidance of material carbonization in the material pipes, durability and fast injection speed.
Description
(1) technical field
The present invention relates to the two-segment type ejection device on a kind of injection machine.
(2) background technology
The screw rod material pipe of loading screw and the injection material pipe of interior dress piston in the material pipe of the two-segment type ejection device on the existing injection machine is divided into, the front end of screw rod material pipe are connected to the front end of the plunger shaft of injection material pipe through a passage.The front end of injection material pipe has nozzle, and the piston rear portion connects a hydraulic cylinder.Plunger shaft relies on the pressure of liquid material that piston is retreated when charging, to increase the volume of plunger shaft.Because when injection, feed liquid is not penetrated fully, federation's residual material on piston end surface; And that the charging of plunger shaft is a front end is pouring-in, therefore, forms the material dead angle near the piston end surface; The material is here always stayed on the piston end surface, causes the material carbonization of material end face thus.Secondly, the repeated moving easy abrasion material inside pipe wall of piston, plunger shaft relies on piston and material tube wall to seal on the other hand; Must there be accurate dimensions to cooperate between the two; Processing request is very high, and thus, material pipe and piston use the not long time just to need overhaul; Correct piston and the fit dimension of expecting inside pipe wall, use cost heightens.At last, piston need seal with the material inside pipe wall, also causes injection speed slow, and piston can only advance in the material pipe by low speed, otherwise can scratch material inside pipe wall.
(3) summary of the invention
The present invention will solve the above-mentioned shortcoming of prior art, and a kind of material carbonization in material pipe, durable, two-segment type ejection device that injection speed is fast avoided is provided.
The screw rod material pipe of loading screw and injection material pipe in two-segment type ejection device of the present invention comprises; The front end of screw rod material pipe is equipped with check valve through being connected to injection material pipe a communicating pipe on communicating pipe, screw rod is connected with rotary drive mechanism; The front end of injection material pipe is equipped with nozzle; It is characterized in that: the rear portion of injection material pipe is provided with the ring-shaped bearing seat, and piston rod is slidably disposed in the described supporting base, and piston rod and supporting base are sealed and matched; Gapped between the wall of piston rod and injection material pipe, piston rod connects the promotion cylinder; The material input port of injection material pipe is positioned at the front end of described supporting base.
Further, but described piston rod and supporting base adopt self-lubricating material to process.
The piston rod surface after carbonization process to ensure lubrication to prevent wear and tear.
The material inlet of injection material pipe is positioned at the supporting base front end; Material gets into injection and expects that the pipe back flows to the cavity that injection expects that pipe is anterior along the gap of piston rod and tube wall; Gradually piston rod is postponed; After waiting to flow into the material capacity, promote cylinder and start, the promotion piston rod advances liquid material is injected in the mould through nozzle.
Compared with prior art, the enter material way of injection material pipe of the present invention is a doggy style, has guaranteed not exist the material dead angle, can prevent the material carbonization effectively.Secondly, there are not friction in piston rod and tube wall, do not need sealing, have reduced the requirement of tube wall machining accuracy on the one hand; Eliminate the wearing and tearing of tube wall on the other hand, prolonged material and managed service life, can also exempt frequent overhaul; Reduce maintenance cost, enhance productivity.Finally, the present invention can also be guaranteed in the wall to increase the injection speed is not being worn.
Advantage of the present invention is: avoid material carbonization in material pipe, durable, injection speed is fast.
(4) description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is the partial enlarged drawing of Fig. 1
(5) specific embodiment
With reference to accompanying drawing:
The screw rod material pipe 4 of loading screw 3 and injection material pipe 8 in two-segment type ejection device of the present invention comprises; The front end of screw rod material pipe 3 is through being connected to injection material pipe 8 communicating pipe 6; On communicating pipe 6 check valve is housed, screw rod 4 is connected with rotary drive mechanism, and the front end of injection material pipe 8 is equipped with nozzle 9.Described rotary drive mechanism is made up of servomotor 2 and reductor 1.Described check valve is the valve that is promoted by check (non-return) valve 5.
The rear portion of injection material pipe 8 is provided with ring-shaped bearing seat 11, and piston rod 10 is slidably disposed in the described supporting base 11, and piston rod 10 is sealed and matched with supporting base 11; Gapped between the wall of piston rod 10 and injection material pipe 8, piston rod 10 connects promotion cylinder 12; The material input port 7 of injection material pipe 8 is positioned at the front end of described supporting base 11.
But described piston rod 10 adopts self-lubricating material to process with supporting base 11.
The piston rod 10 surface after carbonization process to ensure lubrication to prevent wear and tear.
The material inlet of injection material pipe is positioned at the supporting base front end; Material gets into injection and expects that the pipe back flows to the cavity that injection expects that pipe is anterior along the gap of piston rod and tube wall; Gradually piston rod is postponed; After waiting to flow into the material capacity, promote cylinder and start, the promotion piston rod advances liquid material is injected in the mould through nozzle.
Compared with prior art, the enter material way of injection material pipe of the present invention is a doggy style, has guaranteed not exist the material dead angle, can prevent the material carbonization effectively.Secondly, there are not friction in piston rod and tube wall, do not need sealing, have reduced the requirement of tube wall machining accuracy on the one hand; Eliminate the wearing and tearing of tube wall on the other hand, prolonged material and managed service life, can also exempt frequent overhaul; Reduce maintenance cost, enhance productivity.Finally, the present invention can also be guaranteed in the wall to increase the injection speed is not being worn.
The described content of this specification embodiment only is enumerating the way of realization of inventive concept; Should not being regarded as of protection scope of the present invention only limits to the concrete form that embodiment states, protection scope of the present invention also reach in those skilled in the art conceive according to the present invention the equivalent technologies means that can expect.
Claims (3)
1. two-segment type ejection device comprises that the screw rod material pipe of interior loading screw expects to manage with injection, and the front end of screw rod material pipe is injected the material pipe through being connected to a communicating pipe; Check valve was housed on communicating pipe; Screw rod is connected with rotary drive mechanism, and the front end of injection material pipe is equipped with nozzle, it is characterized in that: the rear portion of injection material pipe is provided with the ring-shaped bearing seat; Piston rod is slidably disposed in the described supporting base, and piston rod and supporting base are sealed and matched; Gapped between the wall of piston rod and injection material pipe, piston rod connects the promotion cylinder; The material input port of injection material pipe is positioned at the front end of described supporting base.
2. two-segment type ejection device as claimed in claim 1 is characterized in that: but described piston rod and supporting base adopt self-lubricating material to process.
3. according to claim 1 or claim 2 two-segment type ejection device, it is characterized in that: described piston rod surface is through carbonization treatment.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101566401A CN101422955B (en) | 2007-11-02 | 2007-11-02 | Two-segment type ejection device |
| PCT/CN2008/072605 WO2009065319A1 (en) | 2007-11-02 | 2008-10-07 | Two-stage injection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101566401A CN101422955B (en) | 2007-11-02 | 2007-11-02 | Two-segment type ejection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101422955A CN101422955A (en) | 2009-05-06 |
| CN101422955B true CN101422955B (en) | 2012-08-22 |
Family
ID=40613930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101566401A Expired - Fee Related CN101422955B (en) | 2007-11-02 | 2007-11-02 | Two-segment type ejection device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101422955B (en) |
| WO (1) | WO2009065319A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102241115A (en) * | 2010-05-12 | 2011-11-16 | 浙江德玛克机械有限公司 | Modified injection rod of injection molding machine |
| CN104494074B (en) * | 2014-11-05 | 2016-10-05 | 泰瑞机器股份有限公司 | A kind of Preplasticizing injection moulding apparatus |
| CN104494075B (en) * | 2014-12-26 | 2017-01-11 | 广东福能精密机械有限公司 | Self-cleaning plunger type injection device and self-cleaning plunger type injection molding machine |
| CN107672117A (en) * | 2017-11-06 | 2018-02-09 | 威塑机械科技（上海）有限公司 | Injection machine and former |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0672512A2 (en) * | 1994-03-18 | 1995-09-20 | Nissei Plastic Industrial Co., Ltd. | Preplasticizing type injection apparatus |
| WO2001078964A1 (en) * | 2000-04-14 | 2001-10-25 | Krauss-Maffei Kunststofftechnik Gmbh | Injection unit for injection molding machines with a continuos plasticizing unit |
| CN1557619A (en) * | 2004-01-14 | 2004-12-29 | 刘津平 | Method and device for long fibre filling reinforced plastic injection moulding |
| CN201124557Y (en) * | 2007-11-02 | 2008-10-01 | 联塑(杭州)机械有限公司 | Two-stage emission mechanism |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06166072A (en) * | 1992-12-02 | 1994-06-14 | Matsushita Electric Ind Co Ltd | Injection molding machine |
| JP3457716B2 (en) * | 1993-10-15 | 2003-10-20 | 三菱重工業株式会社 | Tandem injection molding machine |
| JPH07276419A (en) * | 1994-04-11 | 1995-10-24 | Mitsubishi Heavy Ind Ltd | Tandem-type injection molding machine |
| SE9503362L (en) * | 1995-09-29 | 1997-03-30 | Svenska Norol Plastmaskiner Ab | Injection molding machine with charging cylinder |
-
2007
- 2007-11-02 CN CN2007101566401A patent/CN101422955B/en not_active Expired - Fee Related
-
2008
- 2008-10-07 WO PCT/CN2008/072605 patent/WO2009065319A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0672512A2 (en) * | 1994-03-18 | 1995-09-20 | Nissei Plastic Industrial Co., Ltd. | Preplasticizing type injection apparatus |
| WO2001078964A1 (en) * | 2000-04-14 | 2001-10-25 | Krauss-Maffei Kunststofftechnik Gmbh | Injection unit for injection molding machines with a continuos plasticizing unit |
| CN1557619A (en) * | 2004-01-14 | 2004-12-29 | 刘津平 | Method and device for long fibre filling reinforced plastic injection moulding |
| CN201124557Y (en) * | 2007-11-02 | 2008-10-01 | 联塑(杭州)机械有限公司 | Two-stage emission mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101422955A (en) | 2009-05-06 |
| WO2009065319A1 (en) | 2009-05-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YINGJIE (HANGZHOU) MACHINERY CO., LTD. Free format text: FORMER OWNER: LIANSU (HANGZHOU) MACHINERY CO., LTD. Effective date: 20150703 Free format text: FORMER OWNER: LU XIAOTING Effective date: 20150703 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150703 Address after: Hangzhou City, Zhejiang province 310053 Binjiang District River Street Road 688 Building 2 shore B building six room 632 Patentee after: Shengguo (Hangzhou) Machinery Co. Ltd. Address before: 311305 Zhejiang city in Ling'an Province Economic Development Zone No. 61 South Patentee before: Union Plastic (Hangzhou) Machinery Co., Ltd. Patentee before: Lu Xiaoting |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180313 Address after: Ling'an City, Hangzhou City, Zhejiang province 311305 Economic Development Zone No. 61 South Patentee after: Union Plastic (Hangzhou) Machinery Co., Ltd. Address before: Hangzhou City, Zhejiang province 310053 Binjiang District River Street Road 688 Building 2 shore B building six room 632 Patentee before: Shengguo (Hangzhou) Machinery Co. Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20191102 |
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| CF01 | Termination of patent right due to non-payment of annual fee |