CN109808125A - A kind of injection molding machine - Google Patents
A kind of injection molding machine Download PDFInfo
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- CN109808125A CN109808125A CN201910056390.7A CN201910056390A CN109808125A CN 109808125 A CN109808125 A CN 109808125A CN 201910056390 A CN201910056390 A CN 201910056390A CN 109808125 A CN109808125 A CN 109808125A
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- venthole
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- injection molding
- pedestal
- molding machine
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Abstract
The present invention relates to injection-moulding device technical fields, it discloses a kind of injection molding machines, including pedestal, Clamping System, Hydraulic Power Transmission System, injecting systems and drive system, injecting systems include feed pipe and injecting assembly, injecting assembly includes fixed plate, feed tube, injection-tube, blowing block and feed head, the bottom of pedestal one end is equipped with for pedestal one end is padded and to the inclined cushion block of the other end, venthole is offered in fixed plate, venthole runs through fixed plate, and venthole wears and is provided in feed tube, ventilating microhole is offered on the inner wall of feed tube, venthole is connected to the inside of feed tube by ventilating microhole.According to above technical scheme, pedestal is obliquely installed by cushion block, to which injecting systems are obliquely installed, the bubble in injecting systems is allowed to float up in feed tube along injection-tube, then it is connected to by ventilating microhole with venthole, gas in bubble is discharged from venthole, to achieve the purpose that the yield for improving production plastic.
Description
Technical field
The present invention relates to injection-moulding device technical fields, more specifically, it relates to a kind of injection molding machine.
Background technique
Injection molding machine is a kind of modeling of various shapes to be made using mould for plastics in thermoplastic or thermosetting plastics
The main molding equipment of material products.It is divided into vertical, horizontal etc..It is molded function heating of plastic, high pressure is applied to molten plastic, makes it
It projects and is full of mold cavity.
The working principle of injection molding machine is similar to the syringe having an injection, it is the thrust by screw rod or plunger, will mould
The plastic injection for the molten condition changed enters in the die cavity being closed, and the technical process of product is obtained after cured sizing.Injection
Molding is the process of a circulation, and each period specifically includes that
Quantifying feed-fusion plastification-pressure injection-mold filling cool down-opens mould pickup.Die closing again again is taken out after plastic, is carried out
Next circulation.
However, current injection molding machine is when in use, due to being easy doping in the molten plastic under physical condition most of the time
Bubble directly enters the plastic injection of molten condition in the die cavity being closed, when molding pickup, if bubble is not contained in modeling
Inside part, and it is an exposure to the surface of plastics, so that frosting forms leachy defect, causes the yield of plastic low.
Summary of the invention
For the low technical problem of the yield of the injection molding machine production plastic proposed in background technique, the present invention is intended to provide one
Pedestal, is obliquely installed by kind injection molding machine by cushion block, so that injecting systems are obliquely installed, the bubble edge in injecting systems is allowed to inject
Pipe floats up in feed tube, is then connected to by ventilating microhole with venthole, and the gas in bubble is discharged from venthole, thus
Achieve the purpose that the yield for improving production plastic.
To achieve the above object, the present invention provides the following technical scheme that
A kind of injection molding machine, including pedestal, Clamping System, Hydraulic Power Transmission System, injecting systems and drive system, the injecting systems
Including feed pipe and injecting assembly, the injecting assembly includes fixed plate, feed tube, injection-tube, blowing block and feed head, institute
The bottom for stating pedestal one end is equipped with for pedestal one end is padded and to the inclined cushion block of the other end, is offered in the fixed plate
Venthole, the venthole runs through fixed plate, and the venthole wears and is provided in feed tube, on the inner wall of the feed tube
Ventilating microhole is offered, the venthole is connected to the inside of feed tube by the ventilating microhole.
Through the above technical solutions, peace of the pedestal as Clamping System, Hydraulic Power Transmission System, injecting systems and drive system
Body is loaded, is obliquely installed pedestal by being provided with cushion block, so that injecting systems is allowed also to be obliquely installed, thus, in injecting systems
Bubble floated up in feed tube along injection-tube, the gas when bubble breaking, since ventilating microhole is connected to venthole, in bubble
Body can be discharged through ventilating microhole from venthole, so that the number of bubbles in molten plastic greatly reduces, and then reach raising life
Produce the purpose of the yield of plastic.
The present invention is further arranged to: activity is plugged with type of tamper evidence in the venthole, and the type of tamper evidence includes connecting rod, blocks up
Stopper rod and blocking head, the bott stick is arranged in parallel two, and the connecting rod is fixed on the end of two bott sticks, described
It blocks head and bott stick is integrally formed.
Through the above technical solutions, setting type of tamper evidence, the bott stick activity of type of tamper evidence are plugged in venthole, so as to
Clogging venthole prevents from falling into sundries in venthole and completely plugged and dirty, so that venthole is cleaner and tidier.
The present invention is further arranged to: the blocking head is in cone.
Through the above technical solutions, setting blocking head is in cone, thus, the end diameter for blocking head is smaller, so that
More convenient when bott stick, raising installation effectiveness is installed.
The present invention is further arranged to: the side of the blocking head offers screw thread, and the blocking head activity is plugged to out
In stomata, to allow the venthole that gas is allowed to be discharged, and molten plastic is prevented to be discharged.
Through the above technical solutions, external screw thread is equipped in the side of blocking head, by screwed blocking head activity
It is plugged in venthole, thus, molten plastic is not easy to be discharged out of venthole, and still, gas can be arranged easily from venthole
Out.
The present invention is further arranged to: the Clamping System includes stationary mold and movement mould, is offered in the stationary mold
The first half injecting cavities offer the second half injecting cavities on the movement mould, and the stationary mold is fixed on the base, the movement mould
Sliding is mounted on the base, the movement mould to close to the sliding of the direction of stationary mold by the first half injecting cavities and the second half injecting cavities
Fitting, forms complete injection mold cavity.
Through the above technical solutions, setting Clamping System includes stationary mold and movement mould, stationary mold and pedestal are fixed, and are moved
Mould is slidably mounted on pedestal, will be moved mould and is slided to the direction close to stationary mold, can be by the first half injecting cavities and the second half
Injecting cavity fitting, forms complete injection mold cavity, to carry out injection molding operation.
The present invention is further arranged to: the stationary mold and movement mould are to the direction with the same inclined direction of the pedestal
It is obliquely installed.
Through the above technical solutions, setting stationary mold and movement mould are set to the inclination of the direction of the same inclined direction of pedestal
It sets, so as to reduce the tilt angle of pedestal, improves the stability and safety of injection molding operation.Simultaneously as pedestal inclines
When rake angle is larger, Hydraulic Power Transmission System pushes the function for needing to do when movement mould upward sliding larger, wastes energy.
The present invention is further arranged to: the feed head offers discharging on the inner wall of the feed head in cylinder-shaped
Discharge port, the feed head are detachably fixed with the blowing block, and ladder platform, the blowing block and ladder are set in the feed tube
Platform abuts.
Through the above technical solutions, blowing block blocks feed tube when blowing block is abutted with ladder platform, it is molten in feed head
Melting plastics cannot enter in feed tube.When blowing block is jacked up by feed head, gap is reserved, meanwhile, on the inner wall of feed head
Discharge port is opened up, thus, the molten plastic in feed head enters feed tube through gap again through discharge port.
The present invention is further arranged to: the drive system includes driving cylinder and push plate, the driving cylinder and push plate
It is drivingly connected, driving cylinder driving push plate and feed head end abutment, and push plate pushes feed head extruding blowing block, allows institute
The gap formed between blowing block and the inner wall of feed tube is stated, is input in feed tube convenient for molten plastic from feed head.
Through the above technical solutions, driving cylinder is for driving push plate that feed head is pushed to squeeze by setting driving cylinder
Blowing block, allows the gap formed between the blowing block and the inner wall of feed tube, is input to and leads from feed head convenient for molten plastic
In barrel.
The present invention is further arranged to: the driving cylinder is hollow cylinder, and the center of the driving cylinder, which offers, to be passed through
The solution runner worn, the feed pipe are connected and are connected to the bottom end of solution runner.
Through the above technical solutions, the center of setting driving cylinder offers perforative solution runner, by feed pipe from molten
The bottom end of body runner is connected to solution runner, and molten plastic is allowed to flow into feed head from solution runner.To facilitate charging
The installation of pipe.
The present invention is further arranged to: offering waste liquid tank on the pedestal.
Through the above technical solutions, due to the liquid plastic for being easy to drippage molten condition during injection molding,
Waste liquid tank is set and facilitates people to clear up the liquid plastic access of molten condition.
In conclusion the invention has the following advantages:
(1) pedestal is obliquely installed by cushion block, so that injecting systems are obliquely installed, allows the bubble in injecting systems along injection-tube
It floats up in feed tube, is then connected to by ventilating microhole with venthole, the gas in bubble is discharged from venthole, to reach
To the purpose for the yield for improving production plastic；
(2) by setting type of tamper evidence, the bott stick activity of type of tamper evidence is plugged in venthole, so as to clogging venthole,
It prevents from falling into sundries in venthole and completely plugged and dirty, so that venthole is cleaner and tidier；
(3) by, equipped with external screw thread, screwed blocking head activity being plugged in venthole in the side of blocking head,
To which molten plastic is not easy to be discharged out of venthole, and still, gas can easily be discharged from venthole；
(4) center of setting driving cylinder offers perforative solution runner, bottom end and solution by feed pipe from solution runner
Runner connection, allows molten plastic to flow into feed head from solution runner.To facilitate the installation of feed pipe.
Detailed description of the invention
Fig. 1 is the overall structure diagram one of injection molding machine；
Fig. 2 is the overall structure diagram two of injection molding machine；
Fig. 3 is the front view of injection molding machine；
Fig. 4 is the tomograph of injecting systems；
Fig. 5 is the sectional structure chart of injecting systems；
Fig. 6 is the tomograph of type of tamper evidence.
Appended drawing reference: 1, pedestal；11, waste liquid tank；12, sliding beam；13, the first mounting plate；14, the second mounting plate；2, it closes
Modular system；21, stationary mold；211, the first half injecting cavities；22, mould is moved；221, the second half injecting cavities；23, cavity is installed；4, it infuses
Penetrate system；41, feed pipe；42, injecting assembly；421, fixed plate；422, feed tube；423, injection-tube；424, feed head；425,
Discharge port；426, venthole；427, ventilating microhole；428, blowing block；429, ladder platform；5, drive system；51, cylinder is driven；
511, solution runner；52, push plate；6, cushion block；7, type of tamper evidence；71, connecting rod；72, bott stick；73, head is blocked；731, screw thread.
Specific embodiment
Below with reference to examples and drawings, the present invention is described in further detail, but embodiments of the present invention are not only
It is limited to this.
A kind of injection molding machine, according to Fig. 1, Fig. 4 and Fig. 5 comprising pedestal 1, Clamping System 2, Hydraulic Power Transmission System, note
Penetrate system 4 and drive system 5.Pedestal 1 is used for as Clamping System 2, Hydraulic Power Transmission System, injecting systems 4 and drive system 5
Carrier is installed, Clamping System 2, Hydraulic Power Transmission System, injecting systems 4 and drive system 5 are installed on pedestal 1.Pedestal 1 is in length
Cube shape, and the center of pedestal 1 is opened up equipped with rectangular waste liquid tank 11, the two sides of waste liquid tank 11 are respectively formed with two cunnings
Dynamic beam 12.
In conjunction with Fig. 1, Fig. 2 and Fig. 3 it is found that Clamping System 2 includes stationary mold 21 and movement mould 22, offered in stationary mold 21
The first half injecting cavities 211 move and offer the second half injecting cavities 221 on mould 22.One end of pedestal 1 is fixedly installed with the first installation
Plate 13, the other end of pedestal is slidably fitted with the second mounting plate 14, and the basal sliding of the second mounting plate 14 is mounted on two cunnings
On dynamic beam 12.Stationary mold 21 is fixed on the first mounting plate 13, and movement mould 22 is fixed on the second mounting plate 14, and stationary mold 21
It is installed in opposite directions with movement mould 22, slides the second mounting plate 14 to the direction close to the first mounting plate 13, can allow the first half injections
Chamber 211 and the second half injecting cavities 221 are bonded, and complete injection mold cavity are formed, to carry out injection molding operation.
Hydraulic Power Transmission System include Hydraulic power units, hydraulic actuator, hydraulic control component, hydraulic pressure auxiliary element and
Working media, Hydraulic power units are configured to hydraulic oil pump, and hydraulic control component is configured to be mounted on hydraulic oil pump pipeline
Various hydraulic valves, hydraulic actuator are configured to hydraulic motor, and hydraulic pressure auxiliary element is configured to accumulator, and working media is hydraulic
Hydraulic oil inside transmission system.Hydraulic Power Transmission System and the second mounting plate 14 are drivingly connected, for driving the second mounting plate 14
It is slided on two sliding beams 12.
In conjunction with Fig. 3, Fig. 4 and Fig. 5 it is found that the inside of stationary mold 21 offers installation cavity 23, injecting systems 4 are mounted on peace
It behave affectedly the inside of body 23.Injecting systems 4 include feed pipe 41 and injecting assembly 42.Feed pipe 41 is penetrated to installation cavity 23,
And for providing molten plastic to injecting assembly 42.
Injecting assembly 42 includes the fixed plate 421 for being fixed on installation 23 top surface of cavity, leading for 421 bottom of fixed plate is arranged in
Barrel 422, the injection-tube 423 that 422 side of feed tube and connection are set and the feed head 424 that 422 bottom of feed tube is set.
Feed pipe 41 is connected to feed head 424, and feed head 424 offers the discharge port of discharging in cylinder-shaped on the inner wall of feed head 424
425, molten plastic is added into feed tube 422 by discharge port 425 for feed head 424, and molten plastic is through injection-tube 423 to first
It is added in the injection mold cavity that half injecting cavity 211 and the fitting of the second half injecting cavities 221 are formed, to complete injection molding operation.
Molten plastic is added into feed tube 422 in feed head 424, and driving force is needed to push blowing block 428, to allow blowing block
Gap is formed between 428 and the inner wall of feed tube 422, molten plastic is input in feed tube 422 from feed head 424, is driven
Power is completed by drive system 5.Drive system 5 is configured to driving cylinder 51 and push plate 52, push plate 52 are fixed on driving gas
The power output end of cylinder 51 drives cylinder 51 and push plate 52 to be drivingly connected.To which driving cylinder 51 drives push plate 52 and feed head
424 end abutments, and push plate 52 pushes feed head 424 to squeeze blowing block 428, forms above-mentioned blowing block 428 and feed tube 422
The gap formed between inner wall is input in feed tube 422 convenient for molten plastic from feed head 424.
Wherein, in order to realize the connection between feed pipe 41 and feed head 424, setting driving cylinder 51 is hollow cylinder,
The center of driving cylinder 51 offers solution runner 511.
Due to being easy to appear gas hole defect when actually using injection molding machine, cause the production yield of injection molding machine low.Therefore, main
Wanting scheme is, step 1: installation cavity 23 is obliquely installed, the bubble in injection molding molten plastic is floated up, from
And easily together by bubble coalescence.Then, step 2: needing will accumulate in bubble discharge installation cavity 23 together, i.e.,
Production yield can be improved, improve the condition of production.
Specifically, the first step, in order to allow installation cavity 23 to be obliquely installed, it is equipped in the bottom of 1 one end of pedestal for the bottom of by
1 padded cushion block 6 of seat so that pedestal 1 is tilted to the other end, and then achievees the purpose that installation cavity 23 is allowed to be obliquely installed.
Due to directly by 1 padded biggish tilt angle of pedestal when, the safety of injection molding operation is lower, and hydraulic drive system
The great work intensity of system driving movement 22 upward sliding of mould, energy consumption equipment energy are more.To in order to reduce the inclination angle of pedestal 1
Degree by stationary mold 21 and moves mould 22 and is obliquely installed to the direction with the same inclined direction of pedestal 1, to guarantee that tilt angle is
Suitably.In turn, the bubble in molten plastic can be floated up with injection-tube 423, be then gathered in feed tube 422.
Second step offers venthole 426 for the bubble discharge that will assemble in feed tube 422 in fixed plate 421,
Venthole 426 runs through fixed plate 421, and wears and be provided in feed tube 422, and venthole 426 and the inside of feed tube 422 pass through
Offer the connection of ventilating microhole 427.
Meanwhile in order to block venthole 426, in conjunction with Fig. 3, Fig. 4 and Fig. 6 it is found that prevent from falling into sundries in venthole 426 and
Completely plugged and dirty, activity is plugged with type of tamper evidence 7 in venthole 426.Specifically, type of tamper evidence 7 includes connecting rod 71, bott stick
72 are provided with two with blocking head 73, bott stick 72, and arranged in parallel, and connecting rod 71 is fixed on the end of two bott sticks 72
Portion, and two bott sticks 72 are fixed, it blocks head 73 and bott stick 72 is integrally formed.
Meanwhile installation of the blocking head 73 in venthole 426 for convenience, setting blocking head 73 is in cone, so that stifled
Chock plug 73 is plugged to more convenient in venthole 426.Meanwhile screw thread 731 is offered in the side of cone blocking head 73, but stifled
Use plug connection mode between chock plug 73 and venthole 426, rather than be threadedly coupled, this connection type can supplied gas from
It is discharged in venthole 426, without allowing molten plastic to be discharged from venthole.
When use:
First: the injection moulding process step of molten plastic.Molten plastic flows into feed head by solution runner 511 from feed pipe 41
In 424, and flowed into the gap between feed head 424 and feed tube 422 from the discharge port 425 of 424 side of feed head；
When driving cylinder 51 drives push plate 52 that feed head 424 is pushed to squeeze blowing block 428, so that blowing block 428 and feed tube 422
Between form gap, so that the molten plastic in feed head 424 can enter in feed tube 422；
Molten plastic in feed tube 422, which flows into, carries out injection operation in injection-tube 423.
Second: the method for exhausting of gas vent.Due to being obliquely installed, so that bubble floating in molten plastic is to feed tube
In 422, gas is discharged by feed tube 422 by ventilating microhole 427 and venthole 426, plays the role of improving yield.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of injection molding machine, including pedestal (1), Clamping System (2), Hydraulic Power Transmission System, injecting systems (4) and drive system
(5), the injecting systems (4) include feed pipe (41) and injecting assembly (42), and the injecting assembly (42) includes fixed plate
(421), feed tube (422), injection-tube (423), blowing block (428) and feed head (424), which is characterized in that the pedestal
(1) bottom of one end is equipped with for pedestal (1) one end is padded and to the inclined cushion block of the other end (6), the fixed plate (421)
On offer venthole (426), the venthole (426) runs through fixed plate (421), and the venthole (426) wears and opens up
On feed tube (422), offered ventilating microhole (427) on the inner wall of the feed tube (422), the venthole (426) with
The inside of feed tube (422) is connected to by the ventilating microhole (427).
2. a kind of injection molding machine according to claim 1, which is characterized in that the interior activity of the venthole (426) is plugged with stifled
Plug member (7), the type of tamper evidence (7) include connecting rod (71), bott stick (72) and blocking head (73), and the bott stick (72) is mutually flat
Row is provided with two, and the connecting rod (71) is fixed on the end of two bott sticks (72), the blocking head (73) and bott stick
(72) it is integrally formed.
3. a kind of injection molding machine according to claim 2, which is characterized in that the blocking head (73) is in cone.
4. a kind of injection molding machine according to claim 2, which is characterized in that the side of blocking head (73) offers screw thread
(731), blocking head (73) activity is plugged in venthole (426), to allow the venthole (426) that gas is allowed to be discharged,
And molten plastic is prevented to be discharged.
5. a kind of injection molding machine according to claim 1, which is characterized in that the Clamping System (2) includes stationary mold (21)
With movement mould (22), the first half injecting cavities (211) are offered on the stationary mold (21), and the is offered on the movement mould (22)
2 half injecting cavities (221), the stationary mold (21) are fixed on pedestal (1), and movement mould (22) sliding is mounted on pedestal (1)
On, movement mould (22) is to the direction sliding close to stationary mold (21) by the first half injecting cavities (211) and the second half injecting cavities
(221) it is bonded, forms complete injection mold cavity.
6. a kind of injection molding machine according to claim 5, which is characterized in that the stationary mold (21) and movement mould (22) to
It is obliquely installed with the direction of the pedestal (1) same inclined direction.
7. a kind of injection molding machine according to claim 1, which is characterized in that the feed head (424) in cylinder-shaped, it is described into
The discharge port (425) of discharging is offered on the inner wall of material head (424), the feed head (424) and the blowing block (428) are removable
Fixation is unloaded, is set ladder platform (429) in the feed tube (422), the blowing block (428) abuts with ladder platform (429).
8. a kind of injection molding machine according to claim 1, which is characterized in that the drive system (5) includes driving cylinder
(51) it is drivingly connected with push plate (52), the driving cylinder (51) and push plate (52), the driving cylinder (51) drives push plate
(52) with feed head (424) end abutment, and push plate (52) pushes feed head (424) to squeeze blowing block (428), allows the blowing
The gap formed between block (428) and the inner wall of feed tube (422) is input to guide from feed head (424) convenient for molten plastic
In cylinder (422).
9. a kind of injection molding machine according to claim 8, which is characterized in that the driving cylinder (51) is hollow cylinder, institute
The center for stating driving cylinder (51) offers perforative solution runner (511), the feed pipe (41) and solution runner (511)
Bottom end is connected and is connected to.
10. a kind of injection molding machine according to claim 1, which is characterized in that offer waste liquid tank on the pedestal (1)
(11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910056390.7A CN109808125A (en) | 2019-01-19 | 2019-01-19 | A kind of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910056390.7A CN109808125A (en) | 2019-01-19 | 2019-01-19 | A kind of injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109808125A true CN109808125A (en) | 2019-05-28 |
Family
ID=66603628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910056390.7A Pending CN109808125A (en) | 2019-01-19 | 2019-01-19 | A kind of injection molding machine |
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| Country | Link |
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|---|---|---|---|---|
| CN201446657U (en) * | 2009-05-05 | 2010-05-05 | 华南理工大学 | Plastic forming device |
| CN102069160A (en) * | 2011-01-31 | 2011-05-25 | 中冶京诚工程技术有限公司 | Ultra-large rectangular ingot blank sloping casting combined manufacturing device and method |
| CN204209931U (en) * | 2014-11-05 | 2015-03-18 | 天津辉达斯高分子环保材料有限公司 | A kind of injection machine material prepressing device for plastic grain |
| CN208035161U (en) * | 2018-04-18 | 2018-11-02 | 遂宁市互惠光电产品有限公司 | A kind of injection molding machine with bubble exhausting mechanism |
| CN108995141A (en) * | 2018-07-13 | 2018-12-14 | 江门市江海区颖轩投资咨询有限公司 | A kind of injection molding machine raw material hot-melting mechanism |
| CN209478811U (en) * | 2019-01-19 | 2019-10-11 | 上海科吉绝缘电气有限公司 | A kind of injection molding machine of convenient exhaust bubble |
-
2019
- 2019-01-19 CN CN201910056390.7A patent/CN109808125A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201446657U (en) * | 2009-05-05 | 2010-05-05 | 华南理工大学 | Plastic forming device |
| CN102069160A (en) * | 2011-01-31 | 2011-05-25 | 中冶京诚工程技术有限公司 | Ultra-large rectangular ingot blank sloping casting combined manufacturing device and method |
| CN204209931U (en) * | 2014-11-05 | 2015-03-18 | 天津辉达斯高分子环保材料有限公司 | A kind of injection machine material prepressing device for plastic grain |
| CN208035161U (en) * | 2018-04-18 | 2018-11-02 | 遂宁市互惠光电产品有限公司 | A kind of injection molding machine with bubble exhausting mechanism |
| CN108995141A (en) * | 2018-07-13 | 2018-12-14 | 江门市江海区颖轩投资咨询有限公司 | A kind of injection molding machine raw material hot-melting mechanism |
| CN209478811U (en) * | 2019-01-19 | 2019-10-11 | 上海科吉绝缘电气有限公司 | A kind of injection molding machine of convenient exhaust bubble |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190528 |
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| RJ01 | Rejection of invention patent application after publication |