CN101412270A - Full-automatic plastic foam electric forming machine - Google Patents
Full-automatic plastic foam electric forming machine Download PDFInfo
- Publication number
- CN101412270A CN101412270A CNA2008101208463A CN200810120846A CN101412270A CN 101412270 A CN101412270 A CN 101412270A CN A2008101208463 A CNA2008101208463 A CN A2008101208463A CN 200810120846 A CN200810120846 A CN 200810120846A CN 101412270 A CN101412270 A CN 101412270A
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- frame
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- shifting formwork
- forming machine
- mould
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- 239000002984 plastic foam Substances 0.000 title claims description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000009415 formwork Methods 0.000 claims description 32
- 239000007787 solid Substances 0.000 claims description 28
- 230000008859 change Effects 0.000 claims description 14
- 238000007514 turning Methods 0.000 claims description 6
- 239000006260 foam Substances 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a fully-automatic foam electric forming machine, in particular to an electric fully-automatic foam forming device. The forming machine mainly comprises a bracket, a die and a fast die carrier changing device, a moving die electric driving device, a product automatic withdrawing device, a protection device, a control system and the like, wherein the bracket is provided with the moving die electric driving device; the fast die carrier changing device mainly comprises a running base and a die fixing frame. The invention also provides a novel drainage channel structure which is characterized in that the design of the bottom of the die fixing frame is improved, that is, the prior front die arranging mode is changed into a rear die arranging mode. A locking pull rod mechanism consists of four vertical screw rod guide posts connecting four pull rods in the horizontal direction, connecting disks are arranged among the pull rods, and a locking nut is fixed on the screw rod under the connecting disks. A die moving driving power system of the fully-automatic foam electric forming machine is completely simplified, a huge hydraulic driving system is not needed, and the moving die movement can be realized only by using the motor and a moving die movement-guiding and supporting mechanism.
Description
Technical field:
The present invention relates to a kind of electrically driven (operated) full-automatic foamed plastic former, belong to the dedicated manufacturing equipment field that bubble is moulded goods processing.
Background technology:
Traditional foam slab machine mainly is that power source is realized framed motion with the hydraulic system, realizes the processing and forming of foam plastic product.The driving foam slab machine of conventional hydraulic (hereinafter referred conventional hydraulic make-up machine) has the advantage that large driving force is provided, just bringing into play huge effect at EPS production of articles manufacture field, but in the face of current raw material and labour's cost significantly rises, exports the new situations of being obstructed, with respect to performance requirements such as efficient, energy-conservation and environmental protection, but there is wretched insufficiency in the performance of hydraulic-driven make-up machine, for example, the hydraulic system oil liquid leakage can pollute that foam plastic product, shaping mould locate accurately that cost height, working (machining) efficiency are low, noise is big or the like.In addition, the hydraulic-driven make-up machine also has the defective of several especially severes, promptly (1) super large stroke and big cylinder diameter in can't realize that high-speed cruising causes operating efficiency extremely low under the low operating pressure; (2) the total system energy conversion efficiency is low causes energy loss serious; (3) hydraulic system needs periodic inspection to cause the maintenance cost expense high.Under the objective reality of energy shortage at present and price of labour power rise, the maintenance cost of extremely low operating efficiency, serious energy consumption and great number can not be ignored.In fact, after the big portion energy of hydraulic-driven institute loss came from the motor-driven oil pump, the energy of hydraulic system was not to be converted into mechanical energy fully, and consumes in hydraulic system, just can save as if the energy that is then consumed in hydraulic system by motor direct-drive.With rough estimation, if change into motor-driven then the average energy efficient of EPS make-up machine can reach approximately about 40%, maintenance cost is cancelled reduction more than 70% because of hydraulic system.In addition, motor-driven not only can improve repetition formed precision, the dynamic model positioning accuracy in the EPS goods process, and can reduce the pollution of hydraulic oil to goods, and reduces the influence of unfavorable factors such as machine noise.
In addition, existing full-automatic foamed plastic forming machine is owing to limit by dynamic model frame position and actual arrangement space, and the installation of mould and replacing are very inconvenient.Install or more during mold exchange, need the purlin car that mould lifting is installed to the relevant position at needs, dispose corresponding mold filling system, dismoulding system and other annexes then.This process is consuming time usually to reach 3 ~ 4 hours, has seriously limited the operating efficiency of production and processing.
Summary of the invention:
The present invention is primarily aimed at the problems referred to above, framed, the noise reduction energy-conservation to realize of motor direct-drive not only is provided, located fast and reduced targets such as hydraulic oil pollution, and provide mode with the prepackage mould bases to improve to install and the efficient of mold exchange more, designed the special-purpose drainage channel of foamed plastics automatic taking-out mechanism and die forming machine simultaneously, formed the whole full-automatic foamed plastic forming machines efficient, energy-saving and environmental protection that provide by above each several part.
The present invention is achieved by the following technical solution: this make-up machine mainly is made up of support, mould and quick change mould bases device, dynamic model electric driver, goods automatic device for taking out, protector and control system etc.; It comprises bracing frame, control system, charging basket, die changing mechanism and retaining mechanism, its major technique feature is that bracing frame is provided with the shifting formwork electric driver, be specially fixedly shifting formwork plate support on the bracing frame, the shifting formwork plate supports and is provided with linear guides, on the linear guides fixedly the shifting formwork plate support portable plate, the shifting formwork plate supports portable plate and is provided with gear, and gear connects by motor-driven turning cylinder, gear and the tooth bar engagement that is fixed in the support of shifting formwork plate; Described linear guides is provided with slide block, and slide block is provided with the shifting formwork plate and supports portable plate;
This quick change mould bases device mainly is made up of walking seat, solid model frame; The walking seat connects roller by frame bottom and constitutes, and the solid model frame fixation is the quadrilateral frame that matches with mould on support; Also be provided with upending frame on the described solid model framework, be interval with plate washer on the solid model framework;
The novel drainage channel structure that provides mainly is the solid model frame bottom have been done improve design, changes the pre-installed mould mode of former employing into back dress mould mode; It comprises mould, and mould divides solid model frame, shifting formwork frame again, is provided with link stopper and drainage channel between described solid model frame and the shifting formwork frame, and link stopper is located at the following left and right sides of going up of shifting formwork frame; Solid model frame and core rod contact jaw are that inner side edge is low, the outer side edges height; Described link stopper is long to be 40mm, wide 16mm, high 16mm;
Described locking drag link mechanism is made of four pull bars that four vertical screw mandrel guide pillars connect horizontal direction, is provided with the binding dish between the pull bar, is fixed with locking nut on the screw mandrel of binding dish below;
Every interval 60 degree are provided with screw thread on the described screw mandrel, also are provided with respective threads on the locking nut;
These goods automatic device for taking out mainly is made up of motor, synchronizing wheel, vacuum cup leg, fixed frame, left and right sides movable frame and up and down framework etc.; Its structure is to be connected with on the support of vacuum cup to be connected with left and right sides movable frame, up and down framework, and up and down framework connects synchronizing wheel, and synchronizing wheel connects band synchronously, and band is driven by vertical moving motor synchronously; Left and right sides movable frame connects synchronizing wheel, and synchronizing wheel connects band synchronously, and band is by moving horizontally driven by motor synchronously.
Described full-automatic foamed plastic electricity drives make-up machine and is characterised in that:
1. rack form needs because of arranging quick change mould bases, electric driver, automatic device for taking out etc., and its integral layout form is different from existing all kinds of make-up machines fully.The key innovation that this invention provides has two places: (1) rear portion open architecture has guaranteed that the quick change mould bases advances easily and pulls out; (2) special-purpose guide pillar frame has guaranteed that automatic taking-out mechanism is picking goods flexibly.
2. for improve installing and the efficient of mold exchange more, provide quick change mould bases device innovatively, it is very convenient to make mould install or change.During installation mold, only need mould and corresponding accessory to be installed or that change are installed on the mould bases in advance, the inner corresponding fixed-site of its roof support can be finished installation.During the dismounting mould, only quick change mould bases set bolt is turned on, pulled out by the die change frame and can finish dismounting.
3. the dynamic model driving power system is simplified fully, does not need huge fluid power system, only can realize the dynamic model motion by motor and dynamic model motion guide and supporting mechanism.
4. for enhancing productivity, the automatic extracting mechanical arm of these invention institute's goods that provide can be by lifting, translation, transfer and four actions of overturning entirely are placed on assigned address to goods.
5. mechanical independent clamping apparatus is provided, and it has substituted traditional hydraulic cylinder positioning action, and it is reduced to a specific mechanical retaining mechanism.The locking state of independent retaining mechanism does not need external impetus, and only locking action is finished by cylinder.
6. provide mould special-purpose drainage channel, caused the defective of impeded drainage, designed the unobstructed discharge structure of draining at original pre-installed modulus method.
Description of drawings:
Fig. 1 is the structural representation of full-automatic plastic foam electric forming machine;
Fig. 2, Fig. 3, Fig. 4 are motor-driven structural representations;
Fig. 5 is the A place enlarged drawing of Fig. 3;
Fig. 6 is a stereogram of the present invention;
Fig. 7 is a side structure schematic diagram of the present invention;
Fig. 8 is a Facad structure schematic diagram of the present invention;
Fig. 9 is the structural representation of solid model frame;
Figure 10 is that the B-B of Fig. 1 is to cutaway view;
Figure 11 is the C place enlarged drawing of Fig. 2;
Figure 12 is the C place enlarged drawing of original structure;
Figure 13, Figure 14 are the structural representation of shifting formwork frame;
Figure 15 is that the A-A of Figure 13 is to cutaway view;
Figure 16 is the stereogram of shifting formwork frame;
Figure 17 is the E place enlarged drawing of Figure 15;
Figure 18, Figure 19, Figure 20 are structural representation of the present invention;
Figure 21 is that the D-D of Figure 20 is to cutaway view;
Figure 22 is the structural representation of nut;
Figure 23 is that the F-F of Figure 22 is to cutaway view;
Figure 24 is a structural representation of the present invention;
Figure 25 is the structural representation of gear frame;
Figure 26 is the structural representation of vacuum cup and support thereof.
The specific embodiment:
As Fig. 1-shown in Figure 5, among the figure: the 1-base anchor; The 2-under-chassis that extends, 3-left side bracing frame, 4-shifting formwork plate supports A, 5-shifting formwork plate supports B, 6-demoulding frame, 7-upending frame, the right bracing frame of 8-, link under the 9-, 10-solid model plate feet A, 11-solid model plate feet B, 12-driven by motor axle, 13-slide block, the 14-linear guides, 15-gear, 16-tooth bar, the 17-turning cylinder, 18-motor, reductor.
This equipment comprises control system 19, charging basket 20, die changing mechanism 22 and retaining mechanism 21, fixedly shifting formwork plate support 4,5 on the bracing frame 3, the shifting formwork plate supports and is provided with linear guides 14, on the linear guides fixedly the shifting formwork plate support portable plate 23, portable plate is provided with gear 15, gear connects the turning cylinder 17 by motor-driven 18, gear and tooth bar 16 engagements that are fixed on the frame; The line rail is provided with slide block 13, and slide block is provided with the shifting formwork plate and supports portable plate 23.Drive turning cylinder by motor, reductor, turning cylinder moves by gear, rack drives shifting formwork frame.
As Fig. 6, Fig. 7, shown in Figure 8,29-upending frame, 31-screw, 30-solid model framework, 24-solid model frame, 25-screw, 26-walk the seat.
This device mainly is made up of walking seat 36, solid model framework 30; Walking seat bottom connects roller 27, and the solid model frame fixation is the quadrilateral frame that matches with mould frame 24 on the walking seat; Also be provided with upending frame 29 on the solid model framework, be interval with plate washer 28 on the solid model framework.Install or more during mold exchange, only need die change frame and mould and annex thereof etc. as promote comprehensively a support and fixing getting final product; Dismounting only need be turned on set bolt during mould, pull out mould and die change frame after, at the outside annex of removing of frame.
As Fig. 9, Figure 10, Figure 11, shown in Figure 12, the solid model frame 24 of mould changes the pre-installed mould mode of former employing into back dress mould mode; Solid model frame and core rod contact jaw are that inner side edge 32 is low, outer side edges 33 height; Original structure is inner side edge 32 ' height, outer side edges 33 ' low.
As Figure 13-shown in Figure 17, be provided with link stopper 35 and drainage channel 36 between solid model frame and the shifting formwork frame 34, link stopper 35 is located at the following left and right sides of going up of shifting formwork frame; Link stopper is long to be 40mm, wide 16mm, high 16mm.By block is set, make between solid model frame and the shifting formwork frame and form drainage channel, in time ponding is discharged.
As Figure 18-shown in Figure 23,37-screw mandrel guide pillar, 38-back-up ring, 39-latch, the 40-pull bar, 41-pivot pin, 42-terminal pad, 43-cylinder block, the 44-pivot pin, 45-cylinder, 46-connector, 47-nut, the 48-pad, 49-adjusting nut, 50-sliding sleeve, 51-circlip, the 52-locking nut, 53-bearing, 54-screw, the 55-cross recessed countersunk head sscrew, 56-screw, 57-screw.The utility model is made of four pull bars 40 that four vertical screw mandrel guide pillars 37 connect horizontal direction, is provided with binding dish 42 between the pull bar, is fixed with locking nut 52 on the screw mandrel of binding dish below; Every interval 60 degree are provided with screw thread 58 on the screw mandrel, also are provided with respective threads 59 on the locking nut; Pull bar revolution 60 degree make mould be in locking or open mode.
As Figure 24, Figure 25, shown in Figure 26,60-guide rail, 61-tooth bar, 62-cylinder block, the 63-rotary cylinder, 64-is with synchronously, the 65-square tube, the 66-square tube, 67-vacuum cup, the right spindle nose of 68-, 69-left side spindle nose, 70-axle sleeve, 71-synchronizing wheel, the 72-aluminium section bar, the 73-cylinder axis, 74-moves horizontally motor, the 75-vertical moving motor, the 76-left and right sides axis of rolling, 77-scroll-up/down axle.The utility model is to be connected with on the support of vacuum cup 67 to be connected with left and right sides movable frame 78, up and down framework 79 (as Fig. 1), and up and down framework connects synchronizing wheel up and down, and synchronizing wheel connects is with 64 synchronously, and band is driven by vertical moving motor synchronously; Left and right sides movable frame connects synchronizing wheel, and synchronizing wheel connects band synchronously, and band is by moving horizontally driven by motor synchronously.
The utility model is with synchronously by the walking in a horizontal state motor-driven and gear mechanism control left and right sides movable frame moves horizontally along fixed frame; Controlling mechanical palmistry by synchronous band of vertical movable motor driving and gear mechanism moves up and down movable frame; Driving vacuum cup by rotary cylinder revolves and turn 90 degrees; Mention and put goods by vacuum cup.
Claims (6)
1, a kind of full-automatic plastic foam electric forming machine comprises frame, barrel, electric cabinet, it is characterized in that it is made up of the special-purpose drainage channel of shifting formwork electric driver, quick change mould bases device, mould, locking drag link mechanism, goods automatic device for taking out; Bracing frame is provided with the shifting formwork electric driver, be specially fixedly shifting formwork plate support on the bracing frame, the shifting formwork plate supports and is provided with linear guides, on the linear guides fixedly the shifting formwork plate support portable plate, portable plate is provided with gear, gear connects by motor-driven turning cylinder, gear and the tooth bar engagement that is fixed in the support of shifting formwork plate; Described linear guides is provided with slide block, and slide block is provided with the shifting formwork plate and supports portable plate.
2, a kind of full-automatic plastic foam electric forming machine as claimed in claim 1, it is characterized in that described quick change mould bases is made of walking seat, solid model framework, the walking seat connects roller by frame bottom and constitutes, and the solid model frame fixation is the quadrilateral frame that matches with mould on support; The solid model framework also is provided with upending frame on the top; Be interval with plate washer on the described solid model framework.
3, a kind of full-automatic plastic foam electric forming machine as claimed in claim 1, it is characterized in that the special-purpose drainage channel of described mould comprises mould, mould divides solid model frame, shifting formwork frame again, be provided with link stopper and drainage channel between solid model frame and the shifting formwork frame, link stopper is located at the following left and right sides of going up of shifting formwork frame; Solid model frame and core rod contact jaw are that inner side edge is low, the outer side edges height; Described link stopper is long to be 40mm, wide 16mm, high 16mm.
4, a kind of full-automatic plastic foam electric forming machine as claimed in claim 1, it is made of four pull bars that four vertical screw mandrel guide pillars connect horizontal direction to it is characterized in that described locking drag link mechanism, be provided with the binding dish between the pull bar, be fixed with locking nut on the screw mandrel of binding dish below.
5, a kind of full-automatic plastic foam electric forming machine as claimed in claim 4 is characterized in that every interval 60 degree are provided with screw thread on the described screw mandrel, also is provided with respective threads on the locking nut.
6, a kind of full-automatic plastic foam electric forming machine as claimed in claim 1, it is characterized in that described goods automatic device for taking out is to be connected with on the support of vacuum cup to be connected with left and right sides movable frame, up and down framework, up and down framework connects up and down gear, up and down gear connects band synchronously, and band is driven by vertical moving motor synchronously; Left and right sides movable frame connects left and right sides free gear, and left and right sides free gear connects band synchronously, and band is by moving horizontally driven by motor synchronously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101208463A CN101412270B (en) | 2008-09-09 | 2008-09-09 | Full-automatic plastic foam electric forming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101208463A CN101412270B (en) | 2008-09-09 | 2008-09-09 | Full-automatic plastic foam electric forming machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101412270A true CN101412270A (en) | 2009-04-22 |
| CN101412270B CN101412270B (en) | 2012-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101208463A Active CN101412270B (en) | 2008-09-09 | 2008-09-09 | Full-automatic plastic foam electric forming machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN101412270B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302798A (en) * | 2013-06-03 | 2013-09-18 | 江苏震展泡塑科技有限公司 | Electric drive transmission device of foam plastic forming machine |
| CN104441353A (en) * | 2014-10-21 | 2015-03-25 | 浙江美典新材料有限公司 | Mold quick change device for a wood-plastic forming machine |
| CN106273193A (en) * | 2016-08-30 | 2017-01-04 | 杭州方圆塑机股份有限公司 | Two templates are fixed ejects frame fast die change full-automatic foam forming machine |
| CN109927231A (en) * | 2019-04-01 | 2019-06-25 | 中山胡氏机械设备有限公司 | A kind of quick die-filling foamed molding machine |
| CN111496831A (en) * | 2020-05-19 | 2020-08-07 | 安徽三联学院 | Robot tail end flexible quick-change disc |
| CN114953325A (en) * | 2022-07-06 | 2022-08-30 | 合肥希远精密设备有限公司 | Foamed plastic foaming forming machine capable of quickly changing mold |
| CN115949654A (en) * | 2023-03-09 | 2023-04-11 | 烟台中宇航空液压有限公司 | Hydraulic part platform position quick change device |
-
2008
- 2008-09-09 CN CN2008101208463A patent/CN101412270B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302798A (en) * | 2013-06-03 | 2013-09-18 | 江苏震展泡塑科技有限公司 | Electric drive transmission device of foam plastic forming machine |
| CN104441353A (en) * | 2014-10-21 | 2015-03-25 | 浙江美典新材料有限公司 | Mold quick change device for a wood-plastic forming machine |
| CN106273193A (en) * | 2016-08-30 | 2017-01-04 | 杭州方圆塑机股份有限公司 | Two templates are fixed ejects frame fast die change full-automatic foam forming machine |
| CN109927231A (en) * | 2019-04-01 | 2019-06-25 | 中山胡氏机械设备有限公司 | A kind of quick die-filling foamed molding machine |
| CN111496831A (en) * | 2020-05-19 | 2020-08-07 | 安徽三联学院 | Robot tail end flexible quick-change disc |
| CN114953325A (en) * | 2022-07-06 | 2022-08-30 | 合肥希远精密设备有限公司 | Foamed plastic foaming forming machine capable of quickly changing mold |
| CN115949654A (en) * | 2023-03-09 | 2023-04-11 | 烟台中宇航空液压有限公司 | Hydraulic part platform position quick change device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101412270B (en) | 2012-06-27 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU FANGYUAN PLASTICS MACHINERY CO., LTD. Free format text: FORMER OWNER: YUAN GUOQING Effective date: 20130108 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20130108 Address after: 311404 Zhejiang province Fuyang Xindeng Industrial Park (Fangyuan Plastic) Patentee after: FANGYUAN PLASTICS MACHINERY CO.,LTD. Address before: 311404 Zhejiang province Fuyang Xindeng Industrial Park (Fangyuan Plastic) Patentee before: Yuan Guoqing |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Full automatic electric foam forming machine Effective date of registration: 20220424 Granted publication date: 20120627 Pledgee: The Bank of Hangzhou Fuyang branch of the new Limited by Share Ltd. Pledgor: FANGYUAN PLASTICS MACHINERY CO.,LTD. Registration number: Y2022330000579 |
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Date of cancellation: 20230811 Granted publication date: 20120627 Pledgee: The Bank of Hangzhou Fuyang branch of the new Limited by Share Ltd. Pledgor: FANGYUAN PLASTICS MACHINERY CO.,LTD. Registration number: Y2022330000579 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |