CN207068995U - Full-automatic battery conductive cap forming machine - Google Patents
Full-automatic battery conductive cap forming machine Download PDFInfo
- Publication number
- CN207068995U CN207068995U CN201720816544.4U CN201720816544U CN207068995U CN 207068995 U CN207068995 U CN 207068995U CN 201720816544 U CN201720816544 U CN 201720816544U CN 207068995 U CN207068995 U CN 207068995U
- Authority
- CN
- China
- Prior art keywords
- module
- rotating disk
- product
- bound edge
- tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provides a kind of full-automatic battery conductive cap forming machine, first and second rotating disk including spaced setting, first transfer module is set at closest second rotating disk of the first rotating disk, product is put into module after setting bound edge at closest first rotating disk of second rotating disk, make after the first corresponding bound edge of transfer module product be put into module setting, aluminium bowl and steel cap the semi-finished product after the completion of bound edge at the first rotating disk through the first transfer module from the first rotating disk transfer load to the bound edge of the second rotating disk after product be put into module;Using the rotational conveyance of the first rotating disk and the second rotating disk, reduce overall volume and delivered length, and the effect of circular treatment can be reached;And it is dynamic simultaneously in the fine horse for carrying out conductive cap bound edge, situation in more detectable tool and non-defective unit and defective products are detected, the effect of reaching synchronous multitask.
Description
Technical field
The utility model is on a kind of forming machine, refers in particular to a kind of full-automatic battery conductive cap forming machine.
Background technology
Chinese invention patent CN103746136A is refer to, discloses a kind of battery cap cover plate Semi-automatic assembler, is wrapped
Conveyer belt is included, one end of the conveyer belt is feeding end, and the other end is discharge end, and the both sides of the discharge end are respectively equipped with conjunction
Lattice product (non-defective unit) conveyer belt and non-certified products (defective products) conveyer belt, are sequentially provided with along conveyer belt and by feeding end to discharge end
Voltage check device, the first block feeding device, the second block feeding device, block detection means, cover plate feeding device, cover plate
Detection means, certified products (non-defective unit) ink jet numbering machine and reclaimer robot arm are formed;Due to using above-mentioned semi-automatic Working mould
Formula, through artificial loading, battery is transplanted on each station by conveyer belt, realizes the voltage detecting of automation, in the first block
Material, the second block feeding, block detection, cover plate feeding, cover plate detection, certified products (non-defective unit) coding and feeding.
Be still to need artificial loading however, above-mentioned kludge is only capable of reaching automanual work, be unable to reach it is complete from
It is dynamic, to reduce human cost, it more difficult to improving production efficiency and output.
Utility model content
To solve technical deficiency at present, the utility model provides a kind of full-automatic battery conductive cap forming machine, utilizes
The rotational conveyance of first rotating disk and the second rotating disk, reduce overall volume and delivered length, and the effect of circular treatment can be reached
Fruit;And it is dynamic simultaneously in the fine horse for carrying out conductive cap bound edge, situation in more detectable tool and non-defective unit and defective products are detected, reached
To the effect of synchronous multitask.
For the above-mentioned purpose, the utility model provides a kind of full-automatic battery conductive cap forming machine, including spaced
One first rotating disk and one second rotating disk set, wherein:Along the Zhou Yuan of first rotating disk counterclockwise, sequentially angle interval
Ground be provided with an aluminium bowl feed module, a steel cap feed module, a steel cap charging detection module, a left side tool bound edge module,
One right side tool bound edge module, one first transfer module, a defective products suction out module and defective products blowout and tool empties
Detection module;Counterclockwise along around second rotating disk, product is put into after sequentially angle has been positioned apart from a bound edge
Module, a product are put into detection module, one or so product closing in module, a left side formed product module, a right side formed product
Module, one second transfer module, a laser welding module, a CCD detection modules, a material returned module and a tool empty inspection
Survey module;The first transfer module is set at closest second rotating disk of first rotating disk, second rotating disk it is closest this first
Product is put into module after the bound edge is set at rotating disk, product is put into module and sets
Put, the semi-finished product of aluminium bowl and steel cap after the completion of bound edge at first rotating disk pass through the first transfer module from first rotating disk
Product is put into module after transferring load to the bound edge of second rotating disk.
In certain embodiments, first rotating disk is arranged on a board, second rotating disk by one first motor control
It is arranged on by one second motor control on the board.
In certain embodiments, first rotating disk is more provided between the aluminium bowl feed module and the steel cap feed module
At least one pre- station of leaving blank.
In certain embodiments, second rotating disk is provided with one between the laser welding module and the CCD detection modules
Pre- station of leaving blank, is provided with another pre- station of leaving blank between the CCD detection modules and the material returned module.
Brief description of the drawings
Fig. 1 is the schematic perspective view of the utility model full-automatic battery conductive cap forming machine.
Fig. 2 is the schematic side view of the utility model full-automatic battery conductive cap forming machine.
Fig. 3 is the top plan schematic view of the utility model full-automatic battery conductive cap forming machine.
Description of reference numerals:
Full-automatic battery conductive cap forming machine 100;
First rotating disk 1;First motor 10;Aluminium bowl feed module 11;Vibrating disc 111;It is flat to send section 112;Steel cap feeds mould
Block 12;Vibrating disc 121;It is flat to send section 122;Steel cap feeds detection module 13;Left side tool bound edge module 14;Right side tool bound edge
Module 15;First transfer module 16;Defective products suctions out module 17;Defective products is blown out and tool clear detection module 18;
Second rotating disk 2;Second motor 20;Product is put into module 21 after bound edge;Product is put into detection module 22;Left and right product
Closing in module 23;Left side formed product module 24;Right side formed product module 25;Second transfer module 26;Laser welding module
27;CCD detection modules 28;Material returned module 29;Tool clear detection module 2A;Board 200;
First tool F1;Second tool F2;Interior tool F21;Outer tool F22;
The pre- station O1 that leaves blank;The pre- station O2 that leaves blank;The pre- station O3 that leaves blank.
Embodiment
Your juror is set to have a better understanding and awareness the purpose of this utility model, feature and effect,
Brief description of drawings please be hereby coordinate to be described in detail as after below.
Fig. 1 to Fig. 3 is refer to, full-automatic battery conductive cap forming machine 100 of the present utility model includes spaced setting
One first rotating disk 1 and one second rotating disk 2, wherein, the first rotating disk 1 is controlled by one first motor 10 and is arranged on a board 200
On, the second rotating disk 2 is controlled by one second motor 20 and is arranged on board 200.
Along the Zhou Yuan of the first rotating disk 1 counterclockwise, sequentially angle has been positioned apart from an aluminium bowl feed module 11, one
Steel cap feed module 12, steel cap charging detection module 13, a left side tool bound edge module 14, a right side tool bound edge module
15th, one first transfer module 16, a defective products suction out the blowout of the defective products of module 17 and one and tool clear detection module 18.
Counterclockwise along around the second rotating disk 2, product is put into mould after sequentially angle has been positioned apart from a bound edge
Block 21, a product are put into detection module 22, one or so product closing in module 23, the production of the right side of a left side formed product module 24, one
Product forming module 25, one second transfer module 26, a laser welding module 27, a CCD detection modules 28, a material returned module 29,
An and tool clear detection module 2A.
First transfer module 16,2 closest first rotating disk 1 of the second rotating disk are set at 1 closest second rotating disk 2 of the first rotating disk
Product is put into module 21 after place sets bound edge, product is put into module 21 and sets, aluminium
The semi-finished product of bowl and steel cap after the completion of bound edge at the first rotating disk 1 transfer load to through the first transfer module 16 from the first rotating disk 1
Product is put into module 21 after the bound edge of second rotating disk 2.
First rotating disk 1 is more provided with least one pre- station of leaving blank between aluminium bowl feed module 11 and steel cap feed module 12
O1;Second rotating disk 2 is provided with a pre- station O2 that leaves blank between laser welding module 27 and CCD detection modules 28, and mould is detected in CCD
Another pre- station O3 that leaves blank is provided between block 28 and material returned module 29.
First rotating disk 1 week circle it is equiangularly spaced be provided with a plurality of first tool F1 (each first tool F1 can and be set with
Put the combination of two aluminium bowls and steel cap), the first motor 10 often rotates first rotating disk 1, then each first tool F1 moves one
Segmentation, each module 11-18 correspond to a first tool F1 respectively;After each first tool F1 movements stop, around the first rotating disk 1
Each module 11-18 starts to act;In the same manner, the week circle of the second rotating disk 2 is equiangularly spaced is provided with a plurality of second tool F2, respectively
Second tool F2 is (can be side by side by tool F21 in one combination of two aluminium bowls of positioned side by side and steel cap (can) and an outer tool F22
Put the combination of two aluminium bowls and steel cap) formed, the second motor 20 often rotates second rotating disk 2, then each second tool F2
A mobile segmentation, each module 21-2A correspond to one second tool F2 respectively;After each second tool F2 movements stop, the second rotating disk 2
Each module 21-2A of surrounding starts to act;Resetted after the completion of each module 11-18 and 21-2A action, each rotating disk 1 and 2 rotates each phase
Corresponding tool F1 and F2 movement, so circulation.
It is (to scheme aluminium bowl not for 111 flat feeding of vibrating disc, the vibrations screening of vibrating disc 111 for aluminium bowl feed module 11
Show) it is fed to put down with a fixed direction and send section 112, then send section 112 to be sent to above two separation tools through flat, separate
Tool moves inward absorption position after having material in-position;Position is first-class treats that a mechanical arm takes material drawing
Afterwards, separation tool is mobile laterally waits flat send to be sent into aluminium bowl, so circulation;This action and the first rotating disk 1 and manipulator
The action of arm charging is incoherent, as long as not having material to carry out this action on separation tool.
Charging for mechanical arm, when separation tool is drawing position, its operation order is:Mechanical arm decline,
Vacuum cup on mechanical arm draws aluminium bowl, mechanical arm rises, mechanical arm is proceeded on the first corresponding tool F1
Side, mechanical arm decline, aluminium bowl are put into the first corresponding tool F1, the vacuum breaking by vacuum cup, manipulator
Arm rises, mechanical arm retreats, the charging of aluminium bowl confirms (detection sensor detection on the inside of the first tool F1), waits the first rotating disk 1
Rotation, so circulation.
It is (to scheme steel cap not for 121 flat feeding of vibrating disc, the vibrations screening of vibrating disc 121 on steel cap feed module 12
Show) it is fed to put down with a fixed direction and send section 122, then send section 122 to be sent to above two separation tools through flat, separate
Tool moves inward absorption position after having material in-position;Drawing, position is first-class after mechanical arm takes material, point
It is mobile laterally from tool to wait flat send to be sent into steel cap, so circulation;This action and the second rotating disk 2 and mechanical arm are fed
Action be incoherent, as long as there is no material to carry out this action on separation tool.
Charging for mechanical arm, when drawing position, its operation order is separation tool:Mechanical arm declines, machine
Vacuum cup on tool arm draws steel cap, mechanical arm rises, mechanical arm is proceeded to above the first corresponding tool F1,
Mechanical arm declines, steel cap is put into the aluminium bowl of the first corresponding tool F1, the vacuum breaking by vacuum cup, machinery
Arm rises, mechanical arm retreats, waits the first rotating disk 1 to rotate, so circulation.
Detection module 13 is fed on steel cap, drives detection bar to decline using cylinder, sensor checks for being put into steel
Cap and steel cap quantity, cylinder drive detection bar to rise again, wait the first rotating disk 1 to rotate, so circulation.
(steel cap is encased on left side tool bound edge module 14 in aluminium bowl), cylinder drives above the first tool F1 left sides
Part is pushed down under rotary press head, first tool F1 left sides lower section cylinder drives the rotary shaft of motor to rise, motor drives first to control
Rotation on the left of tool F1, cylinder drive bound edge roller advance bound edge, cylinder drive bound edge roller to retreat, motor stops the rotation, first
Cylinder drives motor axis of rotation to decline below the tool F1 left sides, first tool F1 left sides top cylinder drives rotary press head to rise,
Wait turntable rotation, so circulation.
(steel cap is encased on the right tool bound edge module 15 in aluminium bowl), top cylinder drives on the right of the first tool F1
Part is pushed down under rotary press head, the first tool F1 the right lower section cylinder drives the rotary shaft of motor to rise, motor drives first to control
Rotation on the right side of tool F1, cylinder drive bound edge roller advance bound edge, cylinder drive bound edge roller to retreat, motor stops the rotation, first
Lower section cylinder drives motor axis of rotation to decline on the right of tool F1, the first tool F1 the right top cylinder drives rotary press head to rise,
The first rotating disk 1 is waited to rotate, so circulation.
On the semi-finished product of aluminium bowl and steel cap after the completion of bound edge at the first rotating disk 1 be through the first transfer module 16 from
Product is put into module 21 after first rotating disk 1 transfers load to the bound edge of the second rotating disk 2, with mechanical arm drive the first rotating disk suction nozzle and in
Between keep in tool suction nozzle decline simultaneously (while draw the combination of two aluminium bowls and steel cap side by side in the first tool F1, i.e., first
On the left of tool F1 and the aluminium bowl on right side and the combination semi-finished product of steel cap), the first rotating disk suction nozzle and middle temporary tool suction nozzle draw
Semi-finished product, mechanical arm drive two groups of suction nozzles to rise, mechanical arm two groups of suction nozzles of drive advance, and (now the first rotating disk suction nozzle is temporary
Deposit above tool, temporary tool suction nozzle product after the bound edge of the second rotating disk is put into above the second tool F2 at module 21), machine
Tool arm drive under two groups of suction nozzles general who has surrendered's semi-finished product be respectively put into product after middle temporary tool and bound edge be put at module 21, two
The vacuum breaking simultaneously of group suction nozzle, mechanical arm drive two groups of suction nozzles to rise, mechanical arm drives two groups of suction nozzles to retreat, waits first
The rotating disk 2 of rotating disk 1 and second rotates, so circulation.
On defective products suction out module 17, steel cap be put into the part that malposition or bound edge are not wrapped stand herein it is available
Magnet exits.
On defective products blowout and tool clear detection module 18, the part that magnet can not suction out is stood with blowout of blowing herein
Into defective products magazine, at the same sensor check the first tool F1 whether without part inside, to be prepared to act below.
Be put into detection module 22 on product, cylinder drives detection bar to decline, sensor check for being put into object (half into
Product), whether there is put quantity that is correct and being put into, cylinder drives detection bar to rise, waits the second rotating disk 2 to rotate, so circulation.
On left and right product closing in module 23, cylinder drives closing in tool to decline, stops the time specified, cylinder drives and received
Mouth tool rises, waits the second rotating disk 2 to rotate, so circulation.
On left side formed product module 24, oil cylinder drive forming jig decline, stop specify time, oil cylinder drive into
Type tool rises, waits the second rotating disk 2 to rotate, so circulation.
On right side formed product module 25, oil cylinder drive forming jig decline, stop specify time, oil cylinder drive into
Type tool rises, waits the second rotating disk 2 to rotate, so circulation.
It is that semi-finished product are moved on into interior tool F21 from outer tool F22, mechanical arm proceeds on the second transfer module 26
Above outer tool F22, mechanical arm declines, the vacuum cup on mechanical arm draws semi-finished product, mechanical arm rises, manipulator
Arm backed to above the welding fixture of inner side, general who has surrendered's product is put into welding fixture, by the vacuum in vacuum cup under mechanical arm
Destroy, mechanical arm rises, waits the second rotating disk 2 to rotate, so circulation.
On laser welding module 27, cylinder drives the decline of welding shutter, sensor detection object (semi-finished product) whether there is
Correct position (if it's not true, defective products can be judged as), start laser welding, cylinder drive welding shutter rise, etc.
Treat that the second rotating disk 2 rotates, so circulation;Whereby to form a finished product.
On CCD detection modules 28, cylinder drives CCD (detection camera) detection left side objects (semi-finished product), cylinder to drive
CCD (detection camera) detection right side objects (semi-finished product), the second rotating disk 2 is waited to rotate, so circulation.
On material returned module 29, the material returned of non-defective unit and defective products is carried out;Mechanical arm is proceeded to above welding fixture, machinery
Arm declines, the vacuum cup on mechanical arm draws product, mechanical arm rises, mechanical arm retreats, by vacuum cup
Vacuum breaking, wait the second rotating disk 2 rotate, so circulation;If being both non-defective unit, then the cylinder on slideway is not beaten
Open;If being both defective products, then the cylinder on slideway is all opened, while according to the species of defective products, defective products box
The cylinder of sub- bottom can be moved to corresponding position, allow defective products to fall in corresponding material stock box;If one be non-defective unit and
If another is defective products, then slideway cylinder opens corresponding defective products side, while according to the species of defective products, defective products box
The cylinder of sub- bottom can be moved to corresponding position, allow defective products to fall in corresponding material stock box.
On tool clear detection module 2A, sensor checks in tool the object of (tool F21 and outer tool F22 in i.e.)
(molded finished product) whether there is taking-up.
By above-mentioned structure, using the rotational conveyance of the first rotating disk 1 and the second rotating disk 2, reduce overall volume and conveying
Length, and the effect of circular treatment can be reached;And it is dynamic simultaneously in the fine horse for carrying out conductive cap bound edge, in more detectable tool
Situation and non-defective unit and defective products are detected, the effect of reaching synchronous multitask.
Claims (4)
- A kind of 1. full-automatic battery conductive cap forming machine, it is characterised in that including:One first rotating disk of spaced setting and one Second rotating disk, wherein:Along the Zhou Yuan of first rotating disk counterclockwise, sequentially angle has been positioned apart from an aluminium bowl feed module, a steel Cap feed module, steel cap charging detection module, a left side tool bound edge module, a right side tool bound edge module, one first move Carry module, a defective products suctions out module and defective products blowout and tool clear detection module;Counterclockwise along around second rotating disk, product is put into mould after sequentially angle has been positioned apart from a bound edge Block, a product are put into detection module, one or so product closing in module, a left side formed product module, a right side product forming molds Block, one second transfer module, a laser welding module, a CCD detection modules, a material returned module and a tool clear detection Module;AndThe first transfer module, the closest institute of the second rotating disk are set at closest second rotating disk of the first rotating disk State product after the bound edge is set at the first rotating disk and be put into module, make product after the corresponding bound edge of the first transfer module Module setting is put into, the semi-finished product of aluminium bowl and steel cap after the completion of bound edge at first rotating disk pass through the first transfer mould Product is put into module after block transfers load to the bound edge of second rotating disk from first rotating disk.
- 2. full-automatic battery conductive cap forming machine as claimed in claim 1, it is characterised in that first rotating disk is by one first Motor control and be arranged on a board, second rotating disk is arranged on the board by one second motor control.
- 3. full-automatic battery conductive cap forming machine as claimed in claim 1, it is characterised in that first rotating disk is in the aluminium At least one pre- station of leaving blank more is provided between bowl feed module and the steel cap feed module.
- 4. full-automatic battery conductive cap forming machine as claimed in claim 1, it is characterised in that second rotating disk is in the thunder Penetrate between welding module and the CCD detection modules and be provided with a pre- station of leaving blank, in the CCD detection modules and the material returned mould Another pre- station of leaving blank is provided between block.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720816544.4U CN207068995U (en) | 2017-07-07 | 2017-07-07 | Full-automatic battery conductive cap forming machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720816544.4U CN207068995U (en) | 2017-07-07 | 2017-07-07 | Full-automatic battery conductive cap forming machine |
Publications (1)
Publication Number | Publication Date |
---|---|
CN207068995U true CN207068995U (en) | 2018-03-02 |
Family
ID=61507235
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201720816544.4U Expired - Fee Related CN207068995U (en) | 2017-07-07 | 2017-07-07 | Full-automatic battery conductive cap forming machine |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN207068995U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022188228A1 (en) * | 2021-03-12 | 2022-09-15 | 深圳市宏讯实业有限公司 | Machining device for automatic loading and unloading |
-
2017
- 2017-07-07 CN CN201720816544.4U patent/CN207068995U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022188228A1 (en) * | 2021-03-12 | 2022-09-15 | 深圳市宏讯实业有限公司 | Machining device for automatic loading and unloading |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104802510B (en) | A kind of pad printing machine | |
CN106041526B (en) | Electronic drain valve assembles equipment | |
CN207174903U (en) | Automatic disc turning machine | |
CN105438765B (en) | The round automatic implant system of copper pin of charger | |
CN104174595B (en) | Plastic bottle closure multistation automatic printing detects line machine | |
CN109894655B (en) | Automatic milling device | |
CN204818993U (en) | Cylindrical grinder that drop feed mechanism was grabbed in area | |
CN203921347U (en) | A kind of automanual system paper heat-sealing machine | |
CN102922870A (en) | Automatic printing production line of panel trademarks | |
CN203490337U (en) | Device for detecting electrical performance of diode/triode and rejecting defective products | |
CN110386299B (en) | Injection molding product letter sorting vanning system | |
CN203541544U (en) | Automatic feeding unit for numerically controlled lathe | |
CN207068997U (en) | The transfer feed device of battery conductive lid forming machine | |
CN207068996U (en) | The Wrapping apparatus of battery conductive lid forming machine | |
CN110733870A (en) | Processing production line and production method of steel bar connecting sleeve | |
CN207068995U (en) | Full-automatic battery conductive cap forming machine | |
CN206748448U (en) | A kind of saggar loading and unloading integrated treatment machine people | |
CN104416407B (en) | Ornament charging equipment | |
CN204659179U (en) | A kind of pad printing machine | |
CN107379390A (en) | Injecting products clip automatic setup system | |
CN105830944A (en) | Automatic assembly machine for circular ear tags | |
CN206307571U (en) | A kind of disc material double computer cooperation automatic access system | |
CN206493084U (en) | A kind of automatic feeder | |
CN105643866B (en) | SD card upper cover automatic production system | |
KR20200021118A (en) | High speed nonwoven automatic feeder |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180302 |
|
CF01 | Termination of patent right due to non-payment of annual fee |