CN104057574A - Non-retention plunger injection storage cylinder structure of injection moulding machine - Google Patents
Non-retention plunger injection storage cylinder structure of injection moulding machine Download PDFInfo
- Publication number
- CN104057574A CN104057574A CN201410265885.8A CN201410265885A CN104057574A CN 104057574 A CN104057574 A CN 104057574A CN 201410265885 A CN201410265885 A CN 201410265885A CN 104057574 A CN104057574 A CN 104057574A
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- Prior art keywords
- plunger
- injection
- end flange
- channel
- detained
- 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
- 238000002347 injection Methods 0.000 title claims abstract description 65
- 239000007924 injection Substances 0.000 title claims abstract description 65
- 238000003860 storage Methods 0.000 title claims abstract description 23
- 238000001746 injection moulding Methods 0.000 title abstract 2
- 239000000463 material Substances 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 7
- 238000004513 sizing Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 230000002950 deficient Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000004033 plastic Substances 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 238000006731 degradation reaction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000014759 maintenance of location Effects 0.000 abstract 5
- 239000000853 adhesive Substances 0.000 abstract 3
- 230000001070 adhesive effect Effects 0.000 abstract 3
- 239000007921 spray Substances 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000009466 transformation 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
- B29C45/46—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
Abstract
The invention relates to a non-retention plunger injection storage cylinder structure of an injection moulding machine. The non-retention plunger injection storage cylinder structure comprises a spray nozzle, a front-end flange, a storage cylinder and a plunger, wherein the spray nozzle, the front-end flange and the storage cylinder are sequentially assembled hermetically; the plunger is inserted into the storage cylinder in a left-right moving way. The non-retention plunger injection storage cylinder structure is characterized in that a shuttle valve is embedded into the front-end flange; a central channel is arranged in the plunger; a storage cavity and an annular storage channel are formed between the front-end flange and the plunger after adhesive injection; a first-in first-out principle in a fused plastic storage process is realized by using an inner channel to transfer raw material; and residual material is pushed to the end opening of the front-end flange and injected into a mould in a storage process every time. According to the non-retention plunger injection storage cylinder structure, a series of problems caused by the retention of material at the front end of the plunger are completely prevented, the problems of difficult raw material replacement, plastic degradation and the like in a production process are ingeniously solved, so that the product waste is greatly reduced, the working efficiency and the finished product ratio are increased, and the difficulty of equipment maintenance work is lowered; residual adhesive material is conveyed into the storage cavity to participate in the adhesive injection, so that the purpose of removal of the residual material is reached.
Description
Technical field
The present invention relates to a kind of injection machine plunger injection structure, specifically a kind of injection machine is without being detained plunger injection accumulator structure.
Background technology
Existing injection machine plunger injection structure, because all there is certain interval and space in plunger and front end flange, can not eliminate completely, while causing injecting, the material of front end can not penetrate completely, storing process is not only by the remaining sizing material of plunger front end but also back into plunger front end next time, so repeatedly just causing plunger front end material lagging to cause is difficult to expect clearly, prolonged stay causes plastic degradation, regularly to carry out corrective maintenance, to guarantee the quality of product, during maintenance, need manual demolition front end flange to clear up remaining sizing material, expend a large amount of artificial and downtimes; When raw materials for production adjustment or replacing, due to the difficulty of reloading, clear up former residual materials and need repeatedly rinse with a large amount of virgin materials, still want if desired manual demolition front end flange to clear up remaining sizing material, cause very large waste.Chinese patent literature CN2336948Y discloses a kind of screw preplastication plunger piston injection molder on 09 08th, 1999, in frame, be equipped with and penetrate platform, connect the screw preplasticators structure that sleeve preheating mechanism is housed penetrating oil motor on platform, and is furnished with injection cylinder, can make to penetrate that platform moves penetrates platform Shift cylinder, frame opposite side is equipped with cover half and adopts the dynamic model of hydraulic drive chute type matched moulds, an accumulator is housed before screw preplasticators structure, and in accumulator, be provided with the plunger being connected with screw preplasticators structure, four locking dynamic models are housed in frame, the pin of cover half is controlled oil cylinder.This structure does not solve above-mentioned existing problems, therefore, is necessary further improvement.
Summary of the invention
Object of the present invention aims to provide that a kind of simple and reasonable, dependable performance, efficiency are high, the injection machine of easy maintenance, attenuating waste is without being detained plunger injection accumulator structure, to overcome weak point of the prior art.
By a kind of injection machine of this object design, without being detained plunger injection accumulator structure, comprise nozzle, front end flange and the accumulator of sealing assembling successively, what move left and right is inserted in the plunger in accumulator; It is characterized in that: the inner assembly of described front end flange has the valve of shuttling back and forth; In described plunger, be provided with central passage; After injection, between described front end flange and plunger, form storage cavity and annular storing passage, the conduction by inner passage to raw material, remaining sizing material is sent to storage cavity, participates in injection, to reach the object of cleaning defective material.
In described front end flange, be provided with horizontal channel and be at least vertical Vertical Channel, and longitudinally handing-over mutually, the horizontal assembly of the interface point valve that shuttles back and forth; The described valve that shuttles back and forth is mutually vertical with on the horizontal plane of horizontal channel.
The described valve that shuttles back and forth is at least cylindrical, and inside is provided with a beeline channel that crosses the valve that shuttles back and forth; The described valve that shuttles back and forth is to move with axis direction or to take axle center as center of circle rotation, thereby a wherein passage can only be connected in connection Vertical Channel or horizontal channel at every turn.
Channel diameter in described Vertical Channel, horizontal channel and the valve that shuttles back and forth equates respectively.
Described Vertical Channel top passes front end flange surface, and lower end bending is communicated with storing passage; Described horizontal channel left end connects nozzle interior passage, and right-hand member is connected storage cavity.
Described plunger left end is provided with at least rounded projection; The sealing of described protruding injection rear section is inserted in front end flange.
The sealing of described plunger injection rear section is inserted in front end flange and forms two spaces, is respectively the storing cavity that front end flange internal cavity and protruding end face form, the annular storing passage that the large cylindrical of plunger and front end flange form.
Described plunger at least center is provided with central passage, and through bending and annular storing channel connection.
Described storing cavity volume is larger than annular storing passage.
Described Vertical Channel top is raw material inlet.
The present invention is by the improvement of said structure: in front end flange, be provided with the valve that shuttles back and forth and control the flow direction of molten plastic in front end flange, when storing state, molten plastic stays into circular passage through Vertical Channel, then enters central passage, is finally stored in storing cavity.This flow trace contributes to clear up the defective material that last injection is not used to.Thereby realize the principle that keeps first in first out in molten plastic storing process, storing process is all cleared up plunger front end material each time, push buildup to flange port, be injected into mould, all the time form the duty of storing first in first out, the series of problems of having avoided plunger front end material lagging to cause completely, solution dexterously raw material in production process change difficulty, the problems such as plastic degradation, greatly lower and produce waste, increase work efficiency and yield rate, improve corrective maintenance work difficulty.It has that simple and reasonable, dependable performance, efficiency are high, easy maintenance, the low feature of waste.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of first embodiment of the invention.
Fig. 2 is the use view of first embodiment of the invention.
Fig. 3 is front end flange partial cross-sectional perspective view in first embodiment of the invention.
Fig. 4 is front end flange assembly structure schematic diagram in second embodiment of the invention.
Fig. 5 is third embodiment of the invention structural representation.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
The first embodiment
Referring to Fig. 1, this injection machine, without being detained plunger injection accumulator structure, comprises nozzle 1, front end flange 2 and the accumulator 3 of sealing assembling successively, and what move left and right is inserted in the plunger 4 in accumulator 3; It is characterized in that: the inner assembly of described front end flange 2 has the valve of shuttling back and forth 5; In described plunger 4, be provided with central passage 4.2; After injection, between described front end flange 2 and plunger 4, form storage cavity 2.3 and annular storing passage 4.1, the conduction by inner passage to raw material, remaining sizing material is sent to storage cavity 2.3, participates in injection next time, to reach the object of cleaning defective material.
Specifically, in described front end flange 2, be provided with horizontal channel 2.2 and Vertical Channel 2.1, and mutually longitudinally handing-over, the horizontal assembly of the interface point valve 5 that shuttles back and forth; The described valve 5 that shuttles back and forth is mutually vertical with on 2.2 horizontal planes of horizontal channel.The described valve 5 that shuttles back and forth is cylindrical, and inside is provided with a beeline channel that crosses the valve 5 that shuttles back and forth; The described valve 5 that shuttles back and forth moves with axis direction or take axle center as center of circle rotation, thereby connects Vertical Channel 2.1 or horizontal channel 2.2, in addition, can only connect a wherein passage at every turn.Channel diameter in described Vertical Channel 2.1, horizontal channel 2.2 and the valve 5 that shuttles back and forth equates, to realize coordinating, connects.The valve 5 that shuttles back and forth is connected with motor, and works by setup program, and injection machine is when storing state, and the valve 5 that shuttles back and forth is connected Vertical Channel 2.1; Injection machine is when injection state, and the valve 5 that shuttles back and forth is connected horizontal channel 2.2.
Described Vertical Channel 2.1 tops pass front end flange 2 surfaces, referring to Fig. 2, front end flange 2 connects feed system, be that plastic material enters rubber melting cylinder through hopper, by rotatablely moving of screw rod, be transported to left end, plastic material, through the conveying of screw rod and the heating of rubber melting cylinder, becomes molten condition through transitional connection pipe gradually by solid particle, finally by Vertical Channel 2.1, enters front end flange 2; Lower end bending is communicated with storing passage 4.1.Described horizontal channel 2.2 left ends connect nozzle 1 inner passage, and right-hand member is connected storage cavity 2.3.
Described plunger 4 left ends are provided with circular projection 4.3; Described protruding 4.3 injection rear section sealings are inserted in front end flange 2.Now, plunger 4 forms two spaces with front end flange 2, is respectively the storing cavity 2.3 that front end flange 2 internal cavities and protruding 4.3 end faces form, the annular storing passage 4.1 that the large cylindrical of plunger 4 and front end flange 2 form; Plunger 4 centers are provided with central passage 4.2, through bending, are communicated with annular storing passage 4.1.Whole formation one continuous passage, after raw material Vertical Channel 2.1 is got off, through shuttling back and forth, valve 5 is connected Vertical Channel 2.1, via lower square channel, arrive storing passage 4.1, because each injection back-plunger 4 moves to left end, now protruding 4.3 parts plug in front end flange 2, form storing cavity 2.3 and storing passage 4.1, raw material is pushed plunger 4 front end defective materials to plunger 4 tops by storing passage 4.1, via central passage 4.2, flow into plunger 4 centers again, finally enter storing cavity 2.3, along with storing amount increases, plunger is subject to melt pressure effect and moves right, when projection 4.3 is left storing cavity 2.3, storing cavity 2.3 is combined into an ante-chamber with storing passage 4.1, cleaning cull process finishes, treat that storing finishes, plunger 4 stops moving right.Because the cull of storing all exists front end flange 2 front positions, when injection, horizontal channels 2.2 are connected in valve 5 rotations of shuttling back and forth, and plunger 4 moves to left and preferentially front end storage cavity sizing material release front end flange 2 is injected into mould, thus the object of realization cleaning defective material.
In addition, storing cavity 2.3 volumes must be larger than annular storing passage 4.1, could realize cleaning object.
The second embodiment
Referring to Fig. 4, this injection machine is without being detained plunger injection accumulator structure, and it is different from the first embodiment part and is: described in the valve 5 that shuttles back and forth spherical in shape, crossed passage, both sides are extended with rotating shaft outward.Front end flange 2 is split type, and junction correspondence is provided with spherical hollow space and axial trough, coordinates and assembles the valve 5 that originally shuttles back and forth.The present embodiment is convenient to front end flange 2 and shuttle back and forth valve 5 maintenances or maintenance.
Other does not state part with the first embodiment, here analytic explanation no longer.
The 3rd embodiment
Referring to Fig. 5, this injection machine is without being detained plunger injection accumulator structure, it is different from the first embodiment part and is: described Vertical Channel 2.1 is interior through bending at front end flange 2, directly be communicated with storing passage 4.1, do not join with horizontal channel 2.2, described in shuttle back and forth valve 5 sealing or open horizontal channel 2.2.Injection machine is in storing process, the programme-control of setting valve 5 rotations of shuttling back and forth, and when the passage in the valve 5 that shuttles back and forth departs from horizontal channel 2.2 completely, horizontal channel 2.2 is closed, and storing starts.Contribute to prevent that storing process Raw from 2.2 overflowing from horizontal channel; Meanwhile, Vertical Channel 2.1 distances shorten, and storing speed is fast.
Other does not state part with the first embodiment, here analytic explanation no longer.
Above-mentioned is preferred version of the present invention, and those of ordinary skills are to its simple modification or transformation, within all dropping on protection scope of the present invention.
Claims (10)
1. injection machine, without being detained a plunger injection accumulator structure, comprises nozzle (1), front end flange (2) and the accumulator (3) of sealing assembling successively, and what move left and right is inserted in the interior plunger (4) of accumulator (3); It is characterized in that: the inner assembly of described front end flange (2) has the valve of shuttling back and forth (5); In described plunger (4), be provided with central passage (4.2); Injection is to front position, between described front end flange (2) and plunger (4), form storage cavity (2.3) and annular storing passage (4.1), the conduction to raw material by inner passage during melten gel storing, remaining sizing material is sent to storage cavity (2.3), participate in injection, to reach the object of cleaning defective material.
2. injection machine according to claim 1 is without being detained plunger injection accumulator structure, it is characterized in that being provided with in described front end flange (2) horizontal channel (2.2) and be at least vertical Vertical Channel (2.1), and mutually longitudinally handing-over, the horizontal assembly of the interface point valve (5) that shuttles back and forth; The described valve that shuttles back and forth (5) is mutually vertical with on the horizontal plane of horizontal channel (2.2).
3. injection machine according to claim 2 is without being detained plunger injection accumulator structure, and the valve (5) that shuttles back and forth described in it is characterized in that is at least cylindrical, and inside is provided with one and crosses the beeline channel of the valve that shuttles back and forth (5); The described valve that shuttles back and forth (5) moves with axis direction or take axle center as center of circle rotation, thereby connects Vertical Channel (2.1) or horizontal channel (2.2), can only connect a wherein passage at every turn.
4. injection machine according to claim 2, without being detained plunger injection accumulator structure, is characterized in that the channel diameter in described Vertical Channel (2.1), horizontal channel (2.2) and the valve that shuttles back and forth (5) equates respectively.
5. injection machine according to claim 3, without being detained plunger injection accumulator structure, is characterized in that described Vertical Channel (2.1) top passes front end flange (2) surface, and lower end bending is communicated with storing passage (4.1); Described horizontal channel (2.2) left end connects nozzle (1) inner passage, and right-hand member is connected storage cavity (2.3).
6. injection machine according to claim 4, without being detained plunger injection accumulator structure, is characterized in that described plunger (4) left end is provided with at least rounded projection (4.3); The sealing of described projection (4.3) injection rear section is inserted in front end flange (2).
7. injection machine according to claim 5 is without being detained plunger injection accumulator structure, it is characterized in that the sealing of described plunger (4) injection rear section is inserted in two spaces of formation in front end flange (2), respectively the storing cavity (2.3) that front end flange (2) internal cavity and projection (4.3) end face form, the annular storing passage (4.1) that the large cylindrical of plunger (4) and front end flange (2) form.
8. injection machine according to claim 6, without being detained plunger injection accumulator structure, is characterized in that described plunger (4) is at least provided with central passage (4.2) in center, and is communicated with annular storing passage (4.1) through bending.
9. injection machine according to claim 7, without being detained plunger injection accumulator structure, is characterized in that described storing cavity (2.3) volumetric ratio annular storing passage (4.1) is large.
According to the injection machine described in claim 1-9 any one without being detained plunger injection accumulator structure, it is characterized in that described Vertical Channel (2.1) top is raw material inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410265885.8A CN104057574B (en) | 2014-06-13 | 2014-06-13 | Injection machine is without being detained plunger injection accumulator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410265885.8A CN104057574B (en) | 2014-06-13 | 2014-06-13 | Injection machine is without being detained plunger injection accumulator structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104057574A true CN104057574A (en) | 2014-09-24 |
| CN104057574B CN104057574B (en) | 2017-01-04 |
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| CN201410265885.8A Active CN104057574B (en) | 2014-06-13 | 2014-06-13 | Injection machine is without being detained plunger injection accumulator structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494075A (en) * | 2014-12-26 | 2015-04-08 | 广东富瑞精密机械有限公司 | Self-cleaning plunger type injection device and self-cleaning plunger type injection molding machine |
| CN105014885A (en) * | 2015-08-20 | 2015-11-04 | 泰瑞机器股份有限公司 | Runner-free switching valve internal recycle material removing type screw plunger plastic injection molding machine |
| CN105922523A (en) * | 2016-06-27 | 2016-09-07 | 海天塑机集团有限公司 | Circulation structure of injection molding machine |
| CN114851493A (en) * | 2022-04-01 | 2022-08-05 | 常熟拓斯达智能装备有限公司 | Prevent remaining storage cylinder structure and storage cylinder formula injection molding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS61123508A (en) * | 1984-11-21 | 1986-06-11 | Ube Ind Ltd | Injection molding machine |
| CN1071181C (en) * | 1995-08-23 | 2001-09-19 | 埃特灵格塑料机械股份有限公司 | Injection moulding machine with integrated hot channel system |
| CN2767126Y (en) * | 2005-01-04 | 2006-03-29 | 武汉理工大学 | Minitype twin-screw extrusion machine |
| CN203994419U (en) * | 2014-06-13 | 2014-12-10 | 广东伊之密精密注压科技有限公司 | Injection machine is without being detained plunger injection accumulator structure |
-
2014
- 2014-06-13 CN CN201410265885.8A patent/CN104057574B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61123508A (en) * | 1984-11-21 | 1986-06-11 | Ube Ind Ltd | Injection molding machine |
| CN1071181C (en) * | 1995-08-23 | 2001-09-19 | 埃特灵格塑料机械股份有限公司 | Injection moulding machine with integrated hot channel system |
| CN2767126Y (en) * | 2005-01-04 | 2006-03-29 | 武汉理工大学 | Minitype twin-screw extrusion machine |
| CN203994419U (en) * | 2014-06-13 | 2014-12-10 | 广东伊之密精密注压科技有限公司 | Injection machine is without being detained plunger injection accumulator structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494075A (en) * | 2014-12-26 | 2015-04-08 | 广东富瑞精密机械有限公司 | Self-cleaning plunger type injection device and self-cleaning plunger type injection molding machine |
| CN105014885A (en) * | 2015-08-20 | 2015-11-04 | 泰瑞机器股份有限公司 | Runner-free switching valve internal recycle material removing type screw plunger plastic injection molding machine |
| CN105922523A (en) * | 2016-06-27 | 2016-09-07 | 海天塑机集团有限公司 | Circulation structure of injection molding machine |
| CN114851493A (en) * | 2022-04-01 | 2022-08-05 | 常熟拓斯达智能装备有限公司 | Prevent remaining storage cylinder structure and storage cylinder formula injection molding machine |
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| Publication number | Publication date |
|---|---|
| CN104057574B (en) | 2017-01-04 |
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Denomination of invention: Structure of the Injection Storage Cylinder for Injection Molding Machines without Detention Plunger Injection Effective date of registration: 20231009 Granted publication date: 20170104 Pledgee: Ronggui sub branch of Guangdong Shunde Rural Commercial Bank Co.,Ltd. Pledgor: GUANGDONG YIZUMI PRECISION INJECTION TECHNOLOGY Co.,Ltd.|Yizhimi Co.,Ltd. Registration number: Y2023440000073 |