CN100460175C - Grass cushion full hydraulic forming machine and preparation method thereof - Google Patents
Grass cushion full hydraulic forming machine and preparation method thereof Download PDFInfo
- Publication number
- CN100460175C CN100460175C CNB2006100322674A CN200610032267A CN100460175C CN 100460175 C CN100460175 C CN 100460175C CN B2006100322674 A CNB2006100322674 A CN B2006100322674A CN 200610032267 A CN200610032267 A CN 200610032267A CN 100460175 C CN100460175 C CN 100460175C
- Authority
- CN
- China
- Prior art keywords
- hopper
- grass
- building
- front door
- forming machine
- 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
Images
Landscapes
- Harvesting Machines For Specific Crops (AREA)
Abstract
The invention discloses a straw pad full-hydraulic molder and preparing method, which is characterized by the following: the longitude through-groove is opened on the material hopper bottom board and upper pressure board, the bar-shaped bundling hole is set on the back board with material hopper bottom board, back board and material hopper lateral board fixed on the rack, the front door board of material hopper is elevated by hydraulic cylinder, which switches the material front door, the main hydraulic cylinder and hydraulic cylinder of material hopper front door board are fixed at top beam position of rack, the main hydraulic cylinder anchors upper pressure board to move in the material hopper to compact straw, which is bond by iron filament.
Description
Technical field
The present invention relates to a kind of manufacturing, particularly Grass cushion full hydraulic forming machine and system pad method thereof of the flat article basically that constitutes by fiber.
Background technology
When the transportation goods, for preventing the goods slip and roll that the normal grass pad that uses is put goods, particularly transports strip, dish type steel, cushioning is even more important.Except that preventing the goods slip and rolling, also can avoid mutual friction damage steel surface.At present a grass pad is produced and is most ofly used press production, this type of press still to have different defectives to have much room for improvement.Chinese patent application number 200510047038.5 disclosed " a grass pad hydraulic pressure mat producing machine and system pad method thereof " its hydraulic jack is to be contained in the frame sill, pressurization is the roof pressure that makes progress to forage, thereby the hydraulic press bottom must be contained in the darker foundation ditch, just be fit to staff's operation, bring maintenance of equipment inconvenience, the basic cost height.The dodge gate of mat producing machine is the dodge gate that hinge-opening hand-manipulated connects, and carries out bundling again, and this has increased physical labor intensity, and is big to operating personnel's physical demands of long-term work, is unfavorable for safety in production.Its threading mode sees that it describes like threading bundling from the side, and operation is not too convenient and surely lean on.Chinese patent application number 01247354.5 open " a grass pad make-up machine " also exists above-mentioned defective, installation will have than deep basal pit, and maintenance of equipment brings very big inconvenience during to use, has also increased installation cost.Unexposed binding method in the file.Structure shows that it is to take out from careless casing top that its grass pad takes out, and then the utmost point is not easy, and as spilling from careless lower box, then increases bracket height and cylinder pressure pole length, all can cause cost to increase, and has increased single grass and has propped up the pad compacting working time.Chinese patent application number 96241841.2 disclosed hydraulic pressure mat producing machines, its careless case adopt artificial foot-operated mode to control door-opening mechanism, constantly repeat work, and labour intensity is big, and error easy to operate causes accident.This application does not relate to a grass relevant introduction whether pad will be tied up.
Summary of the invention
The purpose of this invention is to provide a kind of hydraulic lifting hopper front door that utilizes, be easy to wear and tie up the Grass cushion full hydraulic forming machine and the system pad method thereof of the high-base of iron wire.
The objective of the invention is to realize with following technical scheme.
Grass cushion full hydraulic forming machine, it comprises electric hydraulic pump, fuel tank, main hydraulic cylinder, frame.Hopper of the present invention is by the hopper base plate, the hopper side plate, hopper postnotum and hopper front door constitute, the hopper base plate is fixed on the base upper surface of the frame of hydraulic forming machine, be fixed with the hopper side plate in the both sides of hopper base plate, the hopper side plate is fastened on the lateral shelf plate of frame, the hopper postnotum is affixed with the end of hopper base plate and two blocks of hopper side plates, have Wire channel in building on the hopper base plate, the hopper postnotum has rectangular lashing wire hole, its position is corresponding with Wire channel in building, corresponding two Wire channel in building and rectangular lashing wire hole are connected, hopper front door hydraulic cylinder is packed in the back timber lower surface of frame, the affixed hopper front door in its hydraulic stem lower end, the front door guide rail is packed in the front end of hopper side plate, and be fixed on the lateral shelf plate of frame, the hopper front door is inserted in the front door guide rail, main hydraulic cylinder is packed in the back timber lower surface of the frame of hydraulic press, its affixed top board in hydraulic stem lower end, the top board lower surface has Wire channel in building, its position is corresponding with rectangular lashing wire hole, the base of hydraulic forming machine is a high-base, and the height of base is at 400 millimeters to 900 millimeters.
The present invention can also finish with following mode:
Aforementioned Grass cushion full hydraulic forming machine, the Wire channel in building on hopper base plate and the top board vertically passes the entire plate face.
Aforementioned Grass cushion full hydraulic forming machine, the position of the position in rectangular lashing wire hole and the Wire channel in building of quantity, hopper base plate is corresponding with quantity with the position of the Wire channel in building of quantity and top board.
Aforementioned Grass cushion full hydraulic forming machine, the rectangular lashing wire hole of the Wire channel in building of hopper base plate, hopper postnotum and the Wire channel in building of seaming chuck respectively have 12 to 24.
Aforementioned Grass cushion full hydraulic forming machine, the rectangular lashing wire hole shape hole that is rectangle.
Aforementioned Grass cushion full hydraulic forming machine, Wire channel in building shape be rectangle groove or the bottom land size dovetail groove bigger than notch size.
Aforementioned Grass cushion full hydraulic forming machine, the length in the rectangular lashing wire hole on the hopper postnotum is 30 millimeters to 200 millimeters.
Use the grass of Grass cushion full hydraulic forming machine of the present invention to prop up the pad preparation method, it is characterized in that comprising the following steps:
1, close the hopper front door, lay forage: handle the electric control box switch, hopper front door hydraulic cylinder works is put down the hopper front door along the door-plate guide rail, be closed into hopper, in the even lay material bin of loose forage;
2, to the forage pressurization, wear to put and tie up iron wire: handle the electric control box switch, main hydraulic cylinder work to pressing down, is pressurizeed top board to the forage in the hopper, and pressure will be tied up iron wire simultaneously and wear the Wire channel in building of putting into the hopper base plate greater than 500KN;
3, open the hopper front door, tie up the grass the pad: when loose forage in hopper pressurized closely knit after, handle the electric control box switch, hopper Qianmen hydraulic cylinder works upwards promotes the hopper front door along the door-plate guide rail, leaves the grass that has compressed and props up the pad upper surface, utilize the iron wire of having worn in every the Wire channel in building that is placed on the hopper base plate of tying up, tie up the forage that pressurizes after closely knit in the corresponding respectively rectangular lashing wire hole of passing the Wire channel in building and the hopper postnotum of top board, just makes a grass pad.
4, grass is propped up the pad release, take out a grass pad: handle the electric control box switch, main hydraulic cylinder work upwards promotes top board and to leave a grass pad and reset, and operating personnel can take out a grass pad from the hopper front.
Grass cushion full hydraulic forming machine of the present invention have compact conformation, simple, reliable operation, easy to operate, the pressure pad quality is good.Hydraulic forming machine is installed on the ground, and installation easily, plant maintenance are conveniently.Owing to adopt hydraulic lifting door mechanism, alleviated operator's labour intensity greatly, improved the safety in production level.Substructure height and appropriate design are worn and tied up wire casing, hole owing to raise, and the operator needn't be bowed bend over to feed, wear bounding wire and take out a grass pad, and be easy to operate, comfortable.A grass pad system pad method is simple, the compacting reliable in quality, and the production time in cycle is short, has reduced production cost and has improved labor productivity.A grass pad hydraulic forming machine is suitable for compacting and is equipped with a class grass pad, and it is more suitable especially compacting with the straw to be that the grass of raw material props up pad.
Description of drawings
Fig. 1 Grass cushion full hydraulic forming machine structure master looks schematic diagram
Fig. 2 is the schematic top plan view of Fig. 1
Fig. 3 hopper is fixed on frame and base portion structural upright schematic diagram
Fig. 4 is A-A cutaway view of Fig. 3
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Grass cushion full hydraulic forming machine comprises that electric hydraulic pump 9, fuel tank 13, electric control box 12, oil pipe 14, main hydraulic cylinder 3, hopper front door hydraulic cylinder 4 and hydraulic press pressure pad mechanism constitute.The base 2 of hydraulic press is a high-base, and this routine base 2 selects for use height at 500 millimeters.Rising base 2 makes hopper base plate 16 positions that are fixed on the base higher, operating personnel needn't be bowed and bends over significantly to feed, wears and tie up silk, tie up and take out a grass pad, has improved work situation greatly and has alleviated labour intensity.A dress forage and a pressure grass pad all carry out in hopper 15.Hopper 15 is to be made of hopper base plate 16, hopper side plate 17, hopper postnotum 7 and hopper front door 6.Hopper base plate 16 is fixed on base 2 upper surfaces of the frame 1 of full hydraulic forming machine, be fixed with hopper side plate 17 in the both sides of hopper base plate 16, hopper side plate 17 is fastened on the lateral shelf plate of frame 1, and hopper postnotum 7 is affixed with the rearward end of hopper base plate 16 and two blocks of hopper side plates 17.Hopper side plate 17 can utilize hydraulic mechanism both sides frame plate to replace.Hopper base plate 16, hopper side plate 17 and hopper postnotum 7 all can be directly affixed (as welding) on gantry base and frame side frame plate.Have Wire channel in building 11 on the hopper base plate 16, hopper postnotum 7 has rectangular lashing wire hole 10, and its position is corresponding with Wire channel in building 11, and corresponding Wire channel in building 11 and rectangular lashing wire hole 10 are connected.Hopper front door hydraulic cylinder 4 is packed in the back timber lower surface of frame beam 1, the affixed hopper front door 6 in its hydraulic stem lower end (as affixed with hinge type or pin type).Front door guide rail 8 is fixed in the front end of hopper side plate 17, and is fixed on the lateral shelf plate of frame 1, and hopper front door 6 is inserted in the front door guide rail 8.Two main hydraulic cylinders 3 are packed in the back timber lower surface of the frame 1 of hydraulic press, the affixed top board 5 in its hydraulic stem lower end, and top board 5 lower surfaces have Wire channel in building 11, and its position is corresponding mutually with rectangular lashing wire hole 10.
The Wire channel in building 11 of hopper base plate 16 and top board 5 vertically passes the plate face of whole plate in the past towards the back, the shape of Wire channel in building is selected rectangular slot for use.Rectangular lashing wire hole 10 is in hopper postnotum 7 perforate from bottom to top, long 200 millimeters of hole, and the shape in hole is rectangle, and its length depends on that institute presses grass to prop up the thickness that fills up.The position of the Wire channel in building 11 of rectangular lashing wire hole 10, hopper base plate 16 and the Wire channel in building 11 of top board 5 and quantity are corresponding one by one mutually, its quantity of this example is all selected 12 for use, the quantity of hole or groove depends on the finished product length of a grass pad, the quantity of long then hole of length or groove increases the corresponding increase of quantity of main hydraulic cylinder 3 and hopper front door hydraulic cylinder 4.
Use the grass of Grass cushion full hydraulic forming machine of the present invention to prop up the pad preparation method, it is characterized in that comprising the following steps:
One, close the hopper front door, lay forage: handle electric control box 12 switches, 4 work of hopper front door hydraulic cylinder are put down hopper front door 6 along door-plate guide rail 8, be closed into hopper 15, in the even lay material bin 15 of loose forage;
Two, to the forage pressurization, wear to put and tie up iron wire: handle electric control box 12 switches, main hydraulic cylinder 3 work, with top board 5 to pressing down, to the compacting of pressurizeing of the forages in the hopper 15, pressure will be tied up iron wire simultaneously and wear the Wire channel in building 11 of putting into hopper base plate 16 greater than 500KN;
Three, open the hopper front door, tie up the grass the pad: when loose forage in hopper pressurized closely knit after, handle electric control box 12 switches, 4 work of hopper front door hydraulic cylinder, hopper front door 6 is upwards promoted along door-plate guide rail 8, leave the grass that has compressed and prop up the pad upper surface, utilize the iron wire of tying up in every the Wire channel in building 11 that has been placed on hopper base plate 16, the corresponding one by one respectively rectangular lashing wire hole 10 of passing the Wire channel in building 11 and the hopper postnotum 7 of top board 5, the forage that pressurizes after closely knit is tied up, just formed a grass pad;
Four, grass is propped up the pad release, take out a grass pad: handle electric control box 12 switches, main hydraulic cylinder 3 work upwards promote top board 5 and to leave the grass that has compressed and prop up pad and reset, and operating personnel can take out a grass pad from hopper 15 fronts.
Claims (8)
1. Grass cushion full hydraulic forming machine, it comprises electric hydraulic pump, fuel tank, main hydraulic cylinder, frame, it is characterized in that hopper (15) is by hopper base plate (16), hopper side plate (17), hopper postnotum (7) and hopper front door (6) constitute, hopper base plate (16) is fixed on base (2) upper surface of hydraulic forming machine frame (1), be fixed with hopper side plate (17) in the both sides of hopper base plate (16), hopper side plate (17) is fastened on the lateral shelf plate of frame (1), hopper postnotum (7) is affixed with the end of hopper base plate (16) and two blocks of hopper side plates (17), have Wire channel in building (11) on the hopper base plate (16), hopper postnotum (7) has rectangular lashing wire hole (10), its position is corresponding with Wire channel in building (11), corresponding Wire channel in building (11) and rectangular lashing wire hole (10) are connected, hopper front door hydraulic cylinder (4) is packed in the back timber lower surface of frame (1), the affixed hopper front door in its hydraulic stem lower end (6), front door guide rail (8) is packed in the front end of hopper side plate (17), and be fixed on the lateral shelf plate of frame (1), hopper front door (6) is inserted in the front door guide rail (8), main hydraulic cylinder (3) is packed in the back timber lower surface of hydraulic press frame (1), the affixed top board in its hydraulic stem lower end (5), top board (5) lower surface has Wire channel in building (11), its position is corresponding with rectangular lashing wire hole (10), the base of hydraulic forming machine (2) is a high-base, and the height of base (2) is at 400 millimeters to 900 millimeters.
2. Grass cushion full hydraulic forming machine according to claim 1 is characterized in that the Wire channel in building (11) on hopper base plate (16) and the top board (5) vertically passes the entire plate face.
3. Grass cushion full hydraulic forming machine according to claim 1 is characterized in that the position and the quantity of Wire channel in building (11) of the position of the Wire channel in building (11) on the position in rectangular lashing wire hole (10) and quantity, the hopper base plate (16) and quantity and top board (5) is corresponding mutually.
4. Grass cushion full hydraulic forming machine according to claim 1 is characterized in that the Wire channel in building (11) of hopper base plate (16), the rectangular lashing wire hole (10) of hopper postnotum (7) and the Wire channel in building (11) of top board (5) respectively have 12 to 24.
5. Grass cushion full hydraulic forming machine according to claim 1 is characterized in that rectangular lashing wire hole (10) the shape hole that is rectangle.
6. Grass cushion full hydraulic forming machine according to claim 1 is characterized in that Wire channel in building (11) shape be rectangle groove or the bottom land size dovetail groove bigger than notch size.
7. Grass cushion full hydraulic forming machine according to claim 1, the length that it is characterized in that the rectangular lashing wire hole (10) on the hopper postnotum (7) is 30 millimeters to 200 millimeters.
8. one kind is used the grass of the described Grass cushion full hydraulic forming machine of claim 1 to prop up the pad preparation method, it is characterized in that comprising the following steps:
1. close the hopper front door, lay forage: handle electric control box (12) switch, hopper front door hydraulic cylinder (4) work is put down hopper front door (6) along door-plate guide rail (8), be closed into hopper (15), in the even lay material bin of loose forage (15);
2. forage is pressurizeed, wear to put and tie up iron wire, handle electric control box (12) switch, main hydraulic cylinder (3) work, with top board (5) to pressing down, to the compacting of pressurizeing of the forage in the hopper (15), pressure will be tied up iron wire simultaneously and wear the Wire channel in building (11) of putting into hopper base plate (16) greater than 500KN;
3. open the hopper front door, tie up the grass the pad: when loose forage in hopper (15) pressurized closely knit after, handle electric control box (12) switch, hopper front door hydraulic cylinder (4) work, hopper front door (6) is upwards promoted along door-plate guide rail (8), leave the grass that has compressed and prop up the pad upper surface, utilize the iron wire of tying up in every the Wire channel in building (11) that has been placed on hopper base plate (16), correspondence is passed the rectangular lashing wire hole (10) of the Wire channel in building (11) and the hopper postnotum (7) of top board (5) one by one respectively, the forage that pressurizes after closely knit is tied up, just formed a grass pad;
4. grass is propped up the pad release, take out a grass pad: handle electric control box (12) switch, main hydraulic cylinder (3) work upwards promotes top board (5), leaves the grass that has compressed and props up pad and reset, and operating personnel can take out a grass pad from hopper (15) front.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2006100322674A CN100460175C (en) | 2006-09-14 | 2006-09-14 | Grass cushion full hydraulic forming machine and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2006100322674A CN100460175C (en) | 2006-09-14 | 2006-09-14 | Grass cushion full hydraulic forming machine and preparation method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1919556A CN1919556A (en) | 2007-02-28 |
CN100460175C true CN100460175C (en) | 2009-02-11 |
Family
ID=37777458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2006100322674A Expired - Fee Related CN100460175C (en) | 2006-09-14 | 2006-09-14 | Grass cushion full hydraulic forming machine and preparation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN100460175C (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101569901B (en) * | 2009-06-15 | 2011-01-05 | 合肥海德数控液压设备有限公司 | Lifting hydrostatic press |
CN102896796A (en) * | 2012-10-18 | 2013-01-30 | 蚌埠市福沃特车轮制造科技有限公司 | Novel framework hydraulic machine |
CN103072164A (en) * | 2013-01-28 | 2013-05-01 | 重庆市江津区渝铁竹帘加工厂 | Integral grass support molding device |
CN103407185A (en) * | 2013-08-22 | 2013-11-27 | 泰州市荣美液压机械制造有限公司 | Electric gate type hydraulic machine |
CN103910102B (en) * | 2014-04-03 | 2016-09-07 | 宁波市东盛纺织有限公司 | A kind of compressor |
CN106738131B (en) * | 2016-12-15 | 2019-01-29 | 攀枝花学院 | Grass mat compression molding device |
CN113290654B (en) * | 2021-05-18 | 2022-04-29 | 宁夏黄河谣科技机械制造有限公司 | Machining method of full-automatic straw support cushion forming machine |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3883278A (en) * | 1971-07-19 | 1975-05-13 | Southwire Co | Anode press with vibration and compaction rate sensing means |
US4565517A (en) * | 1984-01-28 | 1986-01-21 | Hoesch Aktiengesellschaft | Hydraulic press for pressing mats of plastic material reinforced with glass fibers |
CN1028731C (en) * | 1992-01-29 | 1995-06-07 | 铁道部电气化工程局德阳制品厂 | Supporting straw mat and its processing method |
CN2275026Y (en) * | 1996-11-11 | 1998-02-25 | 卢景海 | Hydraulic cushion making machine |
CN2493395Y (en) * | 2001-08-22 | 2002-05-29 | 德阳铁路装载衬垫材料工业公司 | Straw mattress forming machine |
CN2554910Y (en) * | 2002-08-01 | 2003-06-11 | 张建军 | Hydraulic grass rod forming machine |
CN1736677A (en) * | 2005-08-11 | 2006-02-22 | 章金华 | Hydraulic machine for producing grass mat and its grass mat production method |
CN200948634Y (en) * | 2006-09-14 | 2007-09-19 | 向泽银 | Supporting straw mat fully hydroforming machine |
-
2006
- 2006-09-14 CN CNB2006100322674A patent/CN100460175C/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3883278A (en) * | 1971-07-19 | 1975-05-13 | Southwire Co | Anode press with vibration and compaction rate sensing means |
US4565517A (en) * | 1984-01-28 | 1986-01-21 | Hoesch Aktiengesellschaft | Hydraulic press for pressing mats of plastic material reinforced with glass fibers |
CN1028731C (en) * | 1992-01-29 | 1995-06-07 | 铁道部电气化工程局德阳制品厂 | Supporting straw mat and its processing method |
CN2275026Y (en) * | 1996-11-11 | 1998-02-25 | 卢景海 | Hydraulic cushion making machine |
CN2493395Y (en) * | 2001-08-22 | 2002-05-29 | 德阳铁路装载衬垫材料工业公司 | Straw mattress forming machine |
CN2554910Y (en) * | 2002-08-01 | 2003-06-11 | 张建军 | Hydraulic grass rod forming machine |
CN1736677A (en) * | 2005-08-11 | 2006-02-22 | 章金华 | Hydraulic machine for producing grass mat and its grass mat production method |
CN200948634Y (en) * | 2006-09-14 | 2007-09-19 | 向泽银 | Supporting straw mat fully hydroforming machine |
Also Published As
Publication number | Publication date |
---|---|
CN1919556A (en) | 2007-02-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN100460175C (en) | Grass cushion full hydraulic forming machine and preparation method thereof | |
CN107116583B (en) | A kind of medical packaging concealed type PVC board cutter device | |
CN201264279Y (en) | Paper spreading machine | |
CN205891447U (en) | Chartered plane is pressed in fabrics vanning | |
CN1332794C (en) | Hydraulic machine for producing grass mat and its grass mat production method | |
CN203317496U (en) | Scaffold sheet knitter | |
CN200948634Y (en) | Supporting straw mat fully hydroforming machine | |
CN205934948U (en) | Raft foundation structure | |
CN101326880B (en) | Double-box type forage bander | |
CN208940511U (en) | A kind of high-efficient semiautomatic Plastic tunnel insert rack film mulching integrated machine | |
CN207375416U (en) | A kind of brown paper rewinding machine with roller structure | |
CN2933787Y (en) | Mussel type baling press for strip-type straw cushion production | |
CN202206756U (en) | Straw baler | |
CN102560850B (en) | Thread type full-automatic lifting device of computerized flat knitting machine | |
CN212375484U (en) | Pressing and cutting mechanism for weft knitting machine | |
CN210650820U (en) | Contain production of soaking kraft paper with paper cutting device | |
CN107471709A (en) | A kind of automatic shearing pin is raised one's hat mechanism | |
CN108247799A (en) | A kind of implementation of bed surface Wrap device | |
CN203975371U (en) | Etting compress | |
CN203186993U (en) | Rear scraper conveyer head supporting mechanism of fully mechanized caving face | |
CN201571359U (en) | Straw supporting mat hydraulic banding forming device | |
US1996772A (en) | Baling press | |
CN106115006A (en) | Fireworks sibilant rale pipe automatic adhesive plaster machine | |
CN206855552U (en) | A kind of Cloth Cutting equipment | |
CN108706125A (en) | A kind of children's garment production and processing packing apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090211 Termination date: 20190914 |
|
CF01 | Termination of patent right due to non-payment of annual fee |