CN204183831U - A kind of injection mold three links and synthesizes core-pulling device - Google Patents

A kind of injection mold three links and synthesizes core-pulling device Download PDF

Info

Publication number
CN204183831U
CN204183831U CN201420625452.4U CN201420625452U CN204183831U CN 204183831 U CN204183831 U CN 204183831U CN 201420625452 U CN201420625452 U CN 201420625452U CN 204183831 U CN204183831 U CN 204183831U
Authority
CN
China
Prior art keywords
slide block
block
called
slide rail
core
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.)
Withdrawn - After Issue
Application number
CN201420625452.4U
Other languages
Chinese (zh)
Inventor
袁贤飞
赖忠义
泮庭宏
顾来法
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Shuanglin Mould Co Ltd
Original Assignee
Ningbo Shuanglin Mould Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ningbo Shuanglin Mould Co Ltd filed Critical Ningbo Shuanglin Mould Co Ltd
Priority to CN201420625452.4U priority Critical patent/CN204183831U/en
Application granted granted Critical
Publication of CN204183831U publication Critical patent/CN204183831U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The utility model provides a kind of injection mold three interlock synthesis core-pulling device, comprises large slide block (1), small slide block (2), sliding block (3), on-of pin (4), oil cylinder (5).The utility model adopts large slide block to be provided with tube chamber, little chute, cotter way; Small slide block is provided with tube core, tiltedly slide rail, upper clutch slot, and oblique slide rail is provided with limited step; Sliding block is provided with gag lever post; Dynamic model support plate is provided with lower clutch slot; Large skid is positioned at above dynamic model support plate, and small slide block slides and is positioned at described little chute, and the cylinder body of oil cylinder is fixedly connected with dynamic model support plate, and the piston rod of oil cylinder is fixedly connected with small slide block, and on-of pin is positioned at the cotter way of large slide block; When mould closes, the lower end of on-of pin is stuck in described lower clutch slot; During work, hydraulic oil cylinder driving small slide block makes tube core and sliding block first loose core out, when on-of pin inserts upper clutch slot, large slide block is connected the technical scheme making tube chamber loose core out with small slide block, make needs that multiple injection mold of loosing core is set at narrow position, reach the object simplifying structure, reduce body, reduce costs, eliminate fault.

Description

A kind of injection mold three links and synthesizes core-pulling device
Technical field
The utility model relates to a kind of core_pulling demoulding device of injection mold, specifically refer to the injection mold for automobile duct set road goods, three different blocks of loosing core to be linked synthesis core-pulling device from back-off structure core_pulling demoulding a kind of injection mold three out of goods interface tube.
Background technology
Need to arrange in narrow and small position multiple different block carry out the injection mold of core_pulling demoulding of loosing core, prior art adopts and drives respective block action of loosing core to carry out core_pulling demoulding respectively in order by multiple oil cylinder, the many costs of oil cylinder are just high, take mould inside space large, cause the increase of mould body, complex structure, die cost increases further; In addition, multiple oil cylinder respectively job order control overflow is strict, and slightly mistake will mold damage; Therefore, there is complex structure in prior art, body is large, cost is high, easily send out the problems and shortcomings of fault.
Summary of the invention
For above-mentioned prior art Problems existing with not enough, the utility model adopts the device be made up of large slide block, small slide block, sliding block, on-of pin, oil cylinder, and wherein, large slide block is provided with tube chamber, little chute, cotter way, small slide block is provided with tube core, tiltedly slide rail, upper clutch slot, and oblique slide rail is provided with limited step, sliding block is provided with gag lever post, dynamic model support plate is provided with lower clutch slot, large slide block can horizontally slip and be positioned at above dynamic model support plate, small slide block can horizontally slip and be positioned at described little chute, the cylinder body of oil cylinder is fixedly connected with dynamic model support plate, and the piston rod of oil cylinder is fixedly connected with the right-hand member of small slide block, and on-of pin can slide up and down the described cotter way being positioned at large slide block, when mould closes, the lower end of on-of pin is stuck in described lower clutch slot, and large slide block and dynamic model support plate lock, during work, hydraulic oil cylinder driving small slide block and described oblique slide rail move right, and tube core is loosed core to the right from the inwall of the interface tube of goods, and meanwhile, the moving to right of oblique slide rail makes sliding block move down to be separated with the outer wall back-off of the interface tube of goods, while the gag lever post of sliding block is hooked into described limited step, the described upper clutch slot of small slide block moves to the top of on-of pin, due to lateral stressed, the upper end of on-of pin is upwards inserted in described upper clutch slot, large slide block and dynamic model support plate unlock, small slide block is connected with large slide block and locks, small slide block drives large slide block to move right immediately, three interlocks that the described tube chamber of large slide block looses core out from the outer wall of the interface tube of goods are made to synthesize the technical scheme of loosing core to the right, there is provided a kind of injection mold three to link and synthesize core-pulling device, be intended to make needs arrange multiple injection mold of loosing core at narrow position, reach simplification structure, reduce body, reduce costs, eliminate the object of fault.
The purpose of this utility model is achieved in that a kind of injection mold three interlock synthesis core-pulling device, comprise large slide block, small slide block, sliding block, on-of pin, oil cylinder, wherein: described large slide block is block steel components, the middle part of large slide block be provided with notch down, the groove that communicates of left and right directions is called little chute, the top of the left surface of large slide block is provided with the profile corresponding with the outer wall shape face of the interface tube of goods and is called tube chamber, and the bottom front and back position of large slide block left surface is also provided with the profile of coincideing with the back-off structure of goods and is called horizontal button-type face; The slide rail being provided with left and right directions below large slide block is called large slide rail, and the rectangular through-hole that the right part of described large slide rail is provided with above-below direction is called cotter way;
Described small slide block is block steel components, be provided with protrusion, the core corresponding with the inwall shape face of the interface tube of goods left above the left part of small slide block and be called tube core, be provided with slide rail that is downward-sloping, that protrude from right to left below the left part of small slide block left and be called oblique slide rail, the groove that right part above described oblique slide rail is provided with cross section semicircular in shape is called limit bar chute, and the left side cell wall of described limit bar chute is called limited step; The slide rail being provided with left and right directions below small slide block is called little slide rail, is provided with fore-and-aft direction, the groove of cross section semicircular in shape is called clutch slot below described little slide rail;
Described sliding block is the main block steel components looked in L-shaped, and the profile being provided with second slit bamboo or chopped wood corresponding with the outer wall back-off structure shape face of the interface tube of goods above the left part of sliding block is called lower slit bamboo or chopped wood profile; Be provided with chute below sliding block and be called gliding groove, the right flank of sliding block is provided with the gag lever post be made up of hexagon socket cap head screw;
Described on-of pin be main depending in Long Circle, overlook rectangular block steel components;
Described oil cylinder is the hydraulically extensible executive component be made up of cylinder body, piston rod;
Large slide block can horizontally slip and be positioned at above dynamic model support plate, dynamic model support plate be above provided with fore-and-aft direction, the groove of cross section semicircular in shape is called lower clutch slot; Small slide block can horizontally slip and be positioned at the described little chute of large slide block, and sliding block fastens through described gliding groove and described oblique slide rail and is slidably connected with small slide block, and the socket cap of the described gag lever post right-hand member of sliding block slides and is embedded in the described limit bar chute of oblique slide rail; The cylinder body of oil cylinder is fixedly connected with dynamic model support plate, and the piston rod of oil cylinder is fixedly connected with the right-hand member of small slide block, and on-of pin can slide up and down the described cotter way being positioned at large slide block; When mould closes, the lower end of on-of pin is stuck in the described lower clutch slot of dynamic model support plate, and large slide block and dynamic model support plate lock.
The face, direction of said structure statement is divided into up, down, left, right, front, rear side, wherein, before be face in the face of device front view, after be and described before relative face.
Operation principle and beneficial effect
Loose core work time, hydraulic oil cylinder driving small slide block and described oblique slide rail move right, and make tube core loose core out from the inwall of the interface tube of goods to the right, simultaneously, removing to the right of oblique slide rail makes sliding block move down, and the described lower slit bamboo or chopped wood profile of sliding block is separated with the outer wall back-off of the interface tube of goods; While the socket cap of the described gag lever post right-hand member of sliding block is hooked into the described limited step of oblique slide rail, the described upper clutch slot of small slide block moves to the top of on-of pin, because the oblique slide rail of gag lever post hook causes the connection of on-of pin and described lower clutch slot lateral stressed, the upper end of on-of pin is made upwards to insert in described upper clutch slot, large slide block and dynamic model support plate unlock, and small slide block is connected with large slide block and locks; Small slide block drives large slide block to move right immediately, makes the described tube chamber of large slide block loose core out from the outer wall of the interface tube of goods to the right, makes the described horizontal button-type face of large slide block loose core with goods simultaneously and is separated.
This apparatus structure is simple, reliable operation, only needs an oil cylinder once can complete above-mentioned three longitudinal, horizontal interlock synthesis and to loose core action; Make needs that multiple injection mold of loosing core is set at narrow position, simplify the structure, reduce body, reduce cost, eliminate potential faults.
Above-mentioned, the utility model adopts the device be made up of large slide block, small slide block, sliding block, on-of pin, oil cylinder, and wherein, large slide block is provided with tube chamber, little chute, cotter way, small slide block is provided with tube core, tiltedly slide rail, upper clutch slot, and oblique slide rail is provided with limited step, sliding block is provided with gag lever post, dynamic model support plate is provided with lower clutch slot, large slide block can horizontally slip and be positioned at above dynamic model support plate, small slide block can horizontally slip and be positioned at described little chute, the cylinder body of oil cylinder is fixedly connected with dynamic model support plate, and the piston rod of oil cylinder is fixedly connected with the right-hand member of small slide block, and on-of pin can slide up and down the described cotter way being positioned at large slide block, when mould closes, the lower end of on-of pin is stuck in described lower clutch slot, and large slide block and dynamic model support plate lock, during work, hydraulic oil cylinder driving small slide block and described oblique slide rail move right, and tube core is loosed core to the right from the inwall of the interface tube of goods, and meanwhile, the moving to right of oblique slide rail makes sliding block move down to be separated with the outer wall back-off of the interface tube of goods, while the gag lever post of sliding block is hooked into described limited step, the described upper clutch slot of small slide block moves to the top of on-of pin, due to lateral stressed, the upper end of on-of pin is upwards inserted in described upper clutch slot, large slide block and dynamic model support plate unlock, small slide block is connected with large slide block and locks, small slide block drives large slide block to move right immediately, three interlocks that the described tube chamber of large slide block looses core out from the outer wall of the interface tube of goods are made to synthesize the technical scheme of loosing core to the right, overcome prior art and there is complex structure, body is large, cost is high, easily send out the problems and shortcomings of fault, a kind of injection mold three provided links and synthesizes core-pulling device, make needs that multiple injection mold of loosing core is set at narrow position, reach simplification structure, reduce body, reduce costs, eliminate the object of fault.
Accompanying drawing explanation
Fig. 1 is that the master of a kind of injection mold three of the present utility model interlock synthesis core-pulling device looks sectional structure schematic diagram;
Fig. 2 is a kind of injection mold three of the present utility model interlock synthesis core-pulling device, be operated in small slide block 2 to move to right and make tube core 21 loose core out, sliding block 3 moves down the principle schematic making described lower slit bamboo or chopped wood profile be separated tense with the outer wall back-off of the interface tube 031 of goods 03 simultaneously;
Fig. 3 is a kind of injection mold three of the present utility model interlock synthesis core-pulling device, being operated in small slide block 2 drives large slide block 1 to move to right, make the described tube chamber of large slide block 1 loose core out from the outer wall of the interface tube 031 of goods 03, make the described horizontal button-type face of large slide block 1 be separated the principle schematic of tense with goods 03 simultaneously;
Fig. 4 is the schematic diagram of a kind of automobile duct set road goods 03.
Below in conjunction with the embodiment in accompanying drawing, the utility model is described in further detail, but should not be construed as any restriction of the present utility model.
In figure: large slide block 1, small slide block 2, tube core 21, tiltedly slide rail 22, upper clutch slot 23, sliding block 3, gag lever post 31, on-of pin 4, oil cylinder 5, dynamic model support plate 01, lower clutch slot 011, core 02, goods 03, interface tube 031, back-off 032.
Detailed description of the invention
Consult Fig. 1 ~ Fig. 4, a kind of injection mold three of the present utility model links and synthesizes core-pulling device, comprise large slide block 1, small slide block 2, sliding block 3, on-of pin 4, oil cylinder 5, wherein: described large slide block 1 is block steel components, the middle part of large slide block 1 be provided with notch down, the groove that communicates of left and right directions is called little chute, the top of the left surface of large slide block 1 is provided with the profile corresponding with the outer wall shape face of the interface tube 031 of goods 03 and is called tube chamber, and the bottom front and back position of large slide block 1 left surface is also provided with the profile of coincideing with the back-off structure of goods 03 and is called horizontal button-type face; The slide rail being provided with left and right directions below large slide block 1 is called large slide rail, and the rectangular through-hole that the right part of described large slide rail is provided with above-below direction is called cotter way;
Described small slide block 2 is block steel components, be provided with protrusion, the core corresponding with the inwall shape face of the interface tube 031 of goods 03 left above the left part of small slide block 2 and be called tube core 21, be provided with slide rail that is downward-sloping, that protrude from right to left below the left part of small slide block 2 left and be called oblique slide rail 22, the groove that right part above described oblique slide rail 22 is provided with cross section semicircular in shape is called limit bar chute, and the left side cell wall of described limit bar chute is called limited step; The slide rail being provided with left and right directions below small slide block 2 is called little slide rail, is provided with fore-and-aft direction, the groove of cross section semicircular in shape is called clutch slot 23 below described little slide rail;
Described sliding block 3 is the main block steel components looked in L-shaped, and the profile being provided with second slit bamboo or chopped wood corresponding with the outer wall back-off structure shape face of the interface tube 031 of goods 03 above the left part of sliding block 3 is called lower slit bamboo or chopped wood profile; Be provided with chute below sliding block 3 and be called gliding groove, the right flank of sliding block 3 is provided with the gag lever post 31 be made up of hexagon socket cap head screw;
Described on-of pin 4 be main depending in Long Circle, overlook rectangular block steel components;
Described oil cylinder 5 is the hydraulically extensible executive component be made up of cylinder body, piston rod;
Large slide block 1 can horizontally slip and be positioned at above dynamic model support plate 01, dynamic model support plate 01 be above provided with fore-and-aft direction, the groove of cross section semicircular in shape is called lower clutch slot 011; Small slide block 2 can horizontally slip and be positioned at the described little chute of large slide block 1, sliding block 3 fastens through described gliding groove and described oblique slide rail 22 and is slidably connected with small slide block 2, and the socket cap of described gag lever post 31 right-hand member of sliding block 3 slides and is embedded in the described limit bar chute of oblique slide rail 22; The cylinder body of oil cylinder 5 is fixedly connected with dynamic model support plate 01, and the piston rod of oil cylinder 5 is fixedly connected with the right-hand member of small slide block 2, and on-of pin 4 can slide up and down the described cotter way being positioned at large slide block 1; When mould closes, the lower end of on-of pin 4 is stuck in the described lower clutch slot 011 of dynamic model support plate 01, and large slide block 1 locks with dynamic model support plate 01.
The face, direction of said structure statement is divided into up, down, left, right, front, rear side, wherein, before be face in the face of device front view, after be and described before relative face.
Operation principle and beneficial effect
Loose core work time, oil cylinder 5 drives small slide block 2 and described oblique slide rail 22 to move right, tube core 21 is made to loose core out from the inwall of the interface tube 031 of goods 03 to the right, simultaneously, removing to the right of oblique slide rail 22 makes sliding block 3 move down, and the described lower slit bamboo or chopped wood profile of sliding block 3 is separated with the outer wall back-off of the interface tube 031 of goods 03; While the socket cap of described gag lever post 31 right-hand member of sliding block 3 is hooked into the described limited step of oblique slide rail 22, the described upper clutch slot 23 of small slide block 2 moves to the top of on-of pin 4, because the oblique slide rail of gag lever post 31 hook 22 causes on-of pin 4 lateral stressed with the connection of described lower clutch slot 011, the upper end of on-of pin 4 is made upwards to insert in described upper clutch slot 23, large slide block 1 and dynamic model support plate 01 unlock, and small slide block 2 is connected with large slide block 1 and locks; Small slide block 2 drives large slide block 1 to move right immediately, makes the described tube chamber of large slide block 1 loose core out from the outer wall of the interface tube 031 of goods 03 to the right, makes the described horizontal button-type face of large slide block 1 loose core with goods 03 simultaneously and is separated.
This apparatus structure is simple, reliable operation, only needs an oil cylinder once can complete above-mentioned three longitudinal, horizontal interlock synthesis and to loose core action; Make needs that multiple injection mold of loosing core is set at narrow position, simplify the structure, reduce body, reduce cost, eliminate potential faults.

Claims (1)

1. an injection mold three links and synthesizes core-pulling device, comprise large slide block (1), small slide block (2), sliding block (3), on-of pin (4), oil cylinder (5), it is characterized in that: described large slide block (1) is block steel components, the middle part of large slide block (1) is provided with notch down, the groove that left and right directions communicates is called little chute, the top of the left surface of large slide block (1) is provided with the profile corresponding with the outer wall shape face of the interface tube of goods (03) (031) and is called tube chamber, the bottom front and back position of large slide block (1) left surface is also provided with the profile of coincideing with the back-off structure of goods (03) and is called horizontal button-type face, the slide rail being provided with left and right directions below large slide block (1) is called large slide rail, and the rectangular through-hole that the right part of described large slide rail is provided with above-below direction is called cotter way,
Described small slide block (2) is block steel components, be provided with protrusion, the core corresponding with the inwall shape face of the interface tube (031) of goods (03) left above the left part of small slide block (2) and be called tube core (21), be provided with slide rail that is downward-sloping, that protrude from right to left below the left part of small slide block (2) left and be called oblique slide rail (22), the groove that right part above described oblique slide rail (22) is provided with cross section semicircular in shape is called limit bar chute, and the left side cell wall of described limit bar chute is called limited step; The slide rail being provided with left and right directions below small slide block (2) is called little slide rail, is provided with fore-and-aft direction, the groove of cross section semicircular in shape is called clutch slot (23) below described little slide rail;
Described sliding block (3) is the main block steel components looked in L-shaped, and the profile being provided with second slit bamboo or chopped wood corresponding with the outer wall back-off structure shape face of the interface tube of goods (03) (031) above the left part of sliding block (3) is called lower slit bamboo or chopped wood profile; Be provided with chute below sliding block (3) and be called gliding groove, the right flank of sliding block (3) is provided with the gag lever post (31) be made up of hexagon socket cap head screw;
Described on-of pin (4) be main depending in Long Circle, overlook rectangular block steel components;
Described oil cylinder (5) is the hydraulically extensible executive component be made up of cylinder body, piston rod;
Large slide block (1) can horizontally slip and be positioned at above dynamic model support plate (01), dynamic model support plate (01) be above provided with fore-and-aft direction, the groove of cross section semicircular in shape is called lower clutch slot (011); Small slide block (2) can horizontally slip and be positioned at the described little chute of large slide block (1), sliding block (3) fastens through described gliding groove and described oblique slide rail (22) and is slidably connected with small slide block (2), and the socket cap of described gag lever post (31) right-hand member of sliding block (3) slides and is embedded in the described limit bar chute of oblique slide rail (22); The cylinder body of oil cylinder (5) is fixedly connected with dynamic model support plate (01), the piston rod of oil cylinder (5) is fixedly connected with the right-hand member of small slide block (2), and on-of pin (4) can slide up and down the described cotter way being positioned at large slide block (1); When mould closes, the lower end of on-of pin (4) is stuck in the described lower clutch slot (011) of dynamic model support plate (01), and large slide block (1) and dynamic model support plate (01) lock.
CN201420625452.4U 2014-10-17 2014-10-17 A kind of injection mold three links and synthesizes core-pulling device Withdrawn - After Issue CN204183831U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420625452.4U CN204183831U (en) 2014-10-17 2014-10-17 A kind of injection mold three links and synthesizes core-pulling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420625452.4U CN204183831U (en) 2014-10-17 2014-10-17 A kind of injection mold three links and synthesizes core-pulling device

Publications (1)

Publication Number Publication Date
CN204183831U true CN204183831U (en) 2015-03-04

Family

ID=52615861

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420625452.4U Withdrawn - After Issue CN204183831U (en) 2014-10-17 2014-10-17 A kind of injection mold three links and synthesizes core-pulling device

Country Status (1)

Country Link
CN (1) CN204183831U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104325608A (en) * 2014-10-17 2015-02-04 宁波双林模具有限公司 Three-linkage synthesis core-pulling device of injection mould
CN107498800A (en) * 2017-07-25 2017-12-22 宁波神通模塑有限公司 Mould the core-pulling device and core pulling method of pipe injection mold
CN110435094A (en) * 2019-07-31 2019-11-12 宁波方正汽车模具股份有限公司 Secondary core pulling mechanism for sliding block

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104325608A (en) * 2014-10-17 2015-02-04 宁波双林模具有限公司 Three-linkage synthesis core-pulling device of injection mould
CN107498800A (en) * 2017-07-25 2017-12-22 宁波神通模塑有限公司 Mould the core-pulling device and core pulling method of pipe injection mold
CN110435094A (en) * 2019-07-31 2019-11-12 宁波方正汽车模具股份有限公司 Secondary core pulling mechanism for sliding block

Similar Documents

Publication Publication Date Title
CN103358494B (en) Secondary core-pulling and ejection demoulding device by asynchronous inclined downward ejection
CN102358002B (en) Core pulling mechanism of Audi car door cover plate injection mold
CN104890195A (en) Straight ejecting and inclined pulling demolding device of deep reversed buckle in injection mold
CN204340123U (en) Prevent the core-pulling mechanism retreated of loosing core
CN204183831U (en) A kind of injection mold three links and synthesizes core-pulling device
CN103252876B (en) A kind of slotted eye slip key type simple and easy self-locking angled-lift splits ancillary equipment
CN102320111B (en) Linkage slider core-pulling device of injection mold
CN104859107A (en) Rack inclined ejection core pulling demolding device of injection mold
CN102689419B (en) Lifting core-pulling device with angle-lift core block
CN204149456U (en) A kind of injection mold vertical pulling is horizontal takes out back-off stripper apparatus
CN102729415B (en) A kind ofly be provided with the straight top profile slide block device of tiltedly loosing core
CN104325608A (en) Three-linkage synthesis core-pulling device of injection mould
CN104441495A (en) Under-cut demolding device for straightly pulling and transversely extracting injection mold
CN204977312U (en) Pitched -top demoulding device
CN101961909B (en) Three-opening hooked opening/closing mould mechanism for injection mould
CN202727273U (en) Oblique core-pulling mechanism arranged on fixed mould support plate
CN203611434U (en) Two-slope secondary core-pulling structure of injection mold
CN203994527U (en) Self-locking structure and front mold core-pulling mould
CN105643885A (en) Multi-direction sequential combined core-pulling device for single slide block of injection mould
CN203973966U (en) Arc tracheae mould arc core-pulling clamping mechanism
CN106476223B (en) A kind of concentric contraction core-pulling demolding device of injection mold ring-type back-off
CN103203840B (en) Transverse slantwise core pulling device in fixed die lengthways slantwise pulling slide block
CN104044248A (en) Horizontal slide block and automatic material disconnection combined device of injection molding mold
CN204585741U (en) A kind of tooth bar slant-top core-pulling stripper apparatus of injection mold
CN203888151U (en) Injection mould transverse sliding block and automatic breakage combining device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20150304

Effective date of abandoning: 20160921

C25 Abandonment of patent right or utility model to avoid double patenting