CN207060521U - A kind of aluminium bag package machine - Google Patents
A kind of aluminium bag package machine Download PDFInfo
- Publication number
- CN207060521U CN207060521U CN201720166657.4U CN201720166657U CN207060521U CN 207060521 U CN207060521 U CN 207060521U CN 201720166657 U CN201720166657 U CN 201720166657U CN 207060521 U CN207060521 U CN 207060521U
- Authority
- CN
- China
- Prior art keywords
- bag
- transmission line
- additionally provided
- openning body
- sack
- 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- Withdrawn - After Issue
Links
Landscapes
- Vacuum Packaging (AREA)
Abstract
The utility model discloses a kind of aluminium bag package machine, including transmission line, blanking device is provided with the transmission line, bag openning body is provided between the blanking device and transmission line, the bag openning body side is provided with packaging bag feed mechanism, and the packaging bag feed mechanism captures packaging bag and reprinted to bag openning body, and the bag openning body opens the package to feed for blanking device, weighing sensor is additionally provided with the bag openning body, sack banding device is additionally provided between the bag openning body and blanking device.The utility model can be automatically performed charging, the process weighed and packed, and reduce secondary pollution of the gas of staff's exhalation to material, reduce injury of the material to human body.
Description
Technical field
It the utility model is related to lithium battery powder preparation field, and in particular to a kind of aluminium bag package machine.
Background technology
Packaging bags machine is the machine for carrying out pouch-packaged, and existing packing machine is to use manually to consolidate packaging bag
Discharging opening is scheduled on, automatic gauge is weighed, and then manually removes packaging bag, is carrying out thermoplastic sealing, and putting on a conveyor will bag
Pack is seen off.Because manually-operated speed is slow, under the efficiency of work is relatively low.Simultaneously during charging, have slight
Airborne dust, work long hours and certain influence also result on personnel health.
The content of the invention
The purpose of this utility model is to overcome problem above existing for prior art, there is provided a kind of aluminium bag package machine, this
Utility model can be automatically performed charging, the process weighed and packed, and reduce the gas of staff's exhalation to the secondary of material
Pollution, reduce injury of the material to human body.
To realize above-mentioned technical purpose and the technique effect, the utility model is achieved through the following technical solutions：
A kind of aluminium bag package machine, including transmission line, blanking device, the blanking device and transmission line are provided with the transmission line
Between be provided with bag openning body, the bag openning body side is provided with packaging bag feed mechanism, and the packaging bag feed mechanism is grabbed
Take packaging bag and reprint to bag openning body, the bag openning body opens the package to feed for blanking device, on the bag openning body also
Weighing sensor is provided with, sack banding device is additionally provided between the bag openning body and blanking device.
Further, the bag openning body includes two tongs relatively moved along X-direction, and the tong is by two edges
The fixture block composition of Y direction relative movement, the tong are arranged on the hoistable platform moved along Z-direction, two folders
Two vacuums are additionally provided with hoistable platform between hand, two vacuum relative movements are set, and are symmetricly set on Y
On direction of principal axis, two tongs and two vacuums fit around to form out a bag space.
Further, the sack banding device includes banding inner core, and the banding inner core is arranged on out in bag space, described
Banding inner core is internally provided with blanking channel, and the discharging end of the blanking device is arranged in blanking channel, on the discharging end also
The follow block sealed against with blanking channel is provided with, the banding inner core is provided with two banding blocks along the periphery of Y direction.
Further, the hoistable platform is set on the stationary platform by the first elevating mechanism, the fixed platform
Two sides are connected by the second elevating mechanism with installation supporting plate, are set between the installation supporting plate and the second elevating mechanism
Weighing sensor is equipped with, the banding inner core is set on the stationary platform.
Further, the packaging bag feed mechanism includes feeding bottom plate, and the feeding backplate surface is provided with retainer and put down
Platform, the retainer platform surface are provided with positioning framework, and packaging bag, the retainer mesa base are stacked with the positioning framework
Lead screw transmission mechanism is provided with, reprinting frame is additionally provided with the feeding bottom plate of the retainer platform side, is set on the reprinting frame
Reprinting sliding part is equipped with, rotating part is provided with the reprinting sliding part, the rotating part is connected with reprinting crawl bar, described turn
Carry and sucker is provided with crawl bar, the packaging bag reprinted on crawl bar crawl retainer platform is reprinted to bag openning body.
Further, described reprint is additionally provided with alignment sensor on crawl bar, the rotating part with reprint sliding part it
Between be additionally provided with the 3rd elevating mechanism.
Further, vacuum slot is additionally provided with the transmission line, the vacuum slot is arranged on the 4th elevating mechanism
On, the vacuum slot both sides are symmetrically arranged with two sack grip blocks, and the sack grip block is connected with sack gripper cylinder,
Avoidance groove is provided with the middle part of the sack grip block, the avoidance groove of two sack grip blocks cooperatively forms suction nozzle and reserved
Mouthful, the sack grip block top is provided with heat-sealing block, and the heat-sealing block is connected with heat-sealing cylinder.
Further, crawl clamping manipulator is additionally provided with the transmission line, the crawl clamping manipulator is arranged on
On 5th elevating mechanism, the 5th elevating mechanism, which is arranged on, to be reprinted on mobile module, and the transmission line side is additionally provided with not
Non-defective unit transmission belt, described capture are additionally provided with Weighing module on the corresponding transmission line of clamping manipulator.
Further, both sides are provided with safe edge support on the transmission line, and guide wheel group is provided with the safe edge support.
The beneficial effects of the utility model are:
The present apparatus can realize full automatic feeding, blanking, packaging and inspection, prevent the mould of manpower intervention operation completely
Formula, personnel are isolated in outside, avoid powder from damaging human body, powder is polluted in gas and maloperation for also avoiding manually breathing out etc.
Material, effectively improves packaging efficiency, also ensure that the yield of powder in packaging.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, with preferred embodiment of the present utility model and coordinate accompanying drawing detailed below
Describe in detail bright as after.Specific embodiment of the present utility model is shown in detail by following examples and its accompanying drawing.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the utility model embodiment technology, embodiment technology will be retouched below
The required accompanying drawing used is briefly described in stating, it should be apparent that, drawings in the following description are only the utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is blanking station structural representation of the present utility model；
Fig. 3 is blanking station positive structure diagram of the present utility model；
Fig. 4 is the overlooking the structure diagram of the utility model bag openning body and sack banding device；
Fig. 5 is the present invention looks up structural representation of the utility model bag openning body and sack banding device；
Fig. 6 is the utility model sealing station structural representation；
Fig. 7 is that the utility model claims station structure schematic diagram again.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Shown in reference picture 1, Fig. 2, a kind of aluminium bag package machine has transmission line 1, and transmission line enters the packaging bag equipped with material
Row transports, and is provided with blanking device 2 on transmission line, bag openning body 3 is provided between blanking device and transmission line, bag openning body side is set
Packaging bag feed mechanism 4 is equipped with, the crawl packaging bag of packaging bag feed mechanism is simultaneously reprinted to bag openning body, individually grabbed for bag openning body
Packaging bag, bag openning body is taken to be opened after grabbing packaging bag so that blanking device can feed to the packaging bag of opening,
Weighing sensor 5 is additionally provided with bag openning body, while charging, weight of the material in packaging bag is detected in real time, opens bag
Sack banding device 6 is additionally provided between mechanism and blanking device, prevents particulate dust from being revealed in pack, to human body and working environment
Damage and pollute.Vacuum slot 7 is wherein additionally provided with transmission line, the air in packaging bag can be siphoned away, and with
Its heat-sealing block being equipped with can seal after air is suctioned out, and reach airfree effect in packaging bag, avoid air pollution
Materials inside, crawl clamping manipulator 8 is additionally provided with transmission line, when the material after sealing is not reaching to weight demands, i.e.,
It is considered as bad products, is taken away by capturing clamping manipulator, ensures the normal operation of transmission line.The present apparatus can have automatic complete
Into material packaging and weigh, and sealing state is all used in blanking and sealing so that without material in overall work environment
Airborne dust, ensure working environment and health of human body.
For reference picture 2 to shown in Fig. 5, above-mentioned bag openning body has two tongs 31 relatively moved along X-direction, tong by
Two fixture blocks 32 along Y direction relative movement form, and two fixture blocks are two groups with two sides of sandwiched packaging bag, two tongs
Fixture block can then pick up packaging bag, and in line, to simulate the effect that both hands take sack, clamping is stable, two tongs for sack
Between be provided with two vacuums 34, two vacuums relative movements are set, and are symmetrical arranged in the Y-axis direction, pass through two
The action of vacuum can adsorb two sides of the packing bag mouth between two tongs respectively, and be pulled open by movement；
Wherein sack banding device includes banding inner core 61, and banding inner core is internally provided with blanking channel 62, under blanking device
Material end is arranged in blanking channel, and the follow block sealed against with blanking channel is additionally provided with discharging end, avoids kicking up during blanking
Material run out of from gap, tong and vacuum are arranged on the hoistable platform 33 moved along Z-direction, two tongs and two
Individual vacuum is fitted around to form out a bag space, ensures to act with enough positions, and banding inner core is arranged on out in bag space,
After bag openning body opens the package, by the movement of hoistable platform, packaging bag can be set in the neighboring of banding inner core
On, and banding inner core is provided with two banding blocks 63 along the periphery of Y direction, by two mutual clamped closeds of banding block,
The packaging bag that bag will be opened closely is clamped on the periphery of banding inner core, and packaging bag and the through channel in the external world only have blanking to lead to
Road, therefore when blanking device blanking, closed environment is fully achieved, avoid the appearance of material airborne dust.
Hoistable platform is arranged in fixed platform 36 by the first elevating mechanism 35 so that hoistable platform can be put down with fixed
Platform relative motion, banding inner core are set on the stationary platform, can complete what is be arranged with the bag openning body met on hoistable platform
Action, by the packaging bag of opening being set on banding inner core in order, two sides of fixed platform pass through the second lift
Structure 37 is connected with installation supporting plate 38, and installation supporting plate is fixedly installed in frame, realizes that above-mentioned integrally-built position is fixed,
And install and weighing sensor is provided between supporting plate and the second elevating mechanism, overall structure weight can all be delivered to biography of weighing
Sensor, realization are weighed, and after zero, when material is fallen in packaging bag, weighing sensor just can be derived that the material weight in packaging bag
Amount, realizes controllable blanking.
Shown in reference picture 2 and Fig. 3, in order to further improve the effect of Unmanned operation, packaging bag feed mechanism includes upper
Expect bottom plate 41, feeding backplate surface is provided with retainer platform 42, and retainer platform surface is provided with positioning framework 43, in positioning framework
Packaging bag is stacked with, retainer mesa base is provided with lead screw transmission mechanism 44, by the action of lead screw transmission mechanism, will can wrap
Pack is held up, and is additionally provided with the feeding bottom plate of retainer platform side and is reprinted frame 45, is reprinted to be provided with frame and is reprinted sliding part 46,
Reprint and rotating part 47 is provided with sliding part, rotating part is connected with reprinting crawl bar 48, is reprinted and is provided with sucker on crawl bar, inhales
Disk can pick up horizontal positioned packaging bag, be rotated into horizontal positioned packaging bag by rotating part after picking up and be disposed vertically
State, the packaging bag that then can be reprinted on crawl bar crawl retainer platform are reprinted to bag openning body by reprinting sliding part, supplied
Two tong grippings.
And reprint and be additionally provided with alignment sensor 49 on crawl bar, by the height of its detection packaging bag in real time, can control
The transmission amount of lead screw transmission mechanism processed, the determination of its lifting position, i.e., can ensure between sucker and adsorbed packaging bag
Distance, avoid rising excessive and causing extrusion damage, the 3rd elevating mechanism is additionally provided between rotating part and reprinting sliding part
411, between packaging bag feed mechanism is by below the horizontal reprinting of packaging bag to bag openning body, in order to avoid packaging bag scratches out
Bag mechanism, set location is on the lower side, therefore tong can not be gripped directly, and designing packaging bag feed mechanism by it can realize
The effect automatically fed, rise between sack two groups of fixture blocks of feeding, ensure the stabilization of operation.
Shown in reference picture 6, vacuum slot is additionally provided with transmission line, vacuum slot can take out the gas in packaging bag
Remove, to ensure the unicity of material in packaging bag, avoid the Substances Pollution material contained in gas, vacuum slot is arranged on the 4th
On elevating mechanism 71 so that vacuum slot can be descending, and vacuum slot both sides are symmetrically arranged with two sack grip blocks 72, sack
Grip block is connected with sack gripper cylinder, when the packaging bag equipped with material is passed through and rests between two sack grip blocks,
By the action of sack gripper cylinder by sack clamped closed, isolating for packaging bag and external environment condition is realized, in the middle part of sack grip block
It is provided with and avoids groove 73, the avoidance groove of two sack grip blocks cooperatively forms suction nozzle reserved opening, and vacuum slot is arranged on
In suction nozzle reserved opening, while formation to sack clamped closed, vacuum slot, which can extend into, takes gas away in packaging bag, the sack
Grip block top is provided with heat-sealing block 74, and heat-sealing block is connected with heat-sealing cylinder, and after internal gas is pumped, heat-sealing cylinder moves
Make so that heat-sealing block seals to sack, realizes sealing, wherein heat-sealing cylinder first acts, heat-sealing block is connected to vacuum suction
On the sack on mouth periphery, then vacuum slot rises and taken away, so ensures the moment in extraction, seals rapidly this part
Close, ensure the effect vacuumized, said structure forms heat-sealing station 113.
Shown in reference picture 7, in order to ensure accuracy of packaging, crawl clamping manipulator, crawl clamping are additionally provided with transmission line
Manipulator is arranged on the 5th elevating mechanism 81, and the 5th elevating mechanism, which is arranged on, to be reprinted on mobile module 82, and transmission line side is also
Defective products transmission belt is provided with, crawl clamping manipulator captures defective products from transmission line to be placed on defective products conveyer belt,
Realize the operation of defective products blanking, the overall normal transmission for not influenceing transmission line, the corresponding transmission line of crawl clamping manipulator
On be additionally provided with Weighing module, to ensure to weigh again with weighing data and judge source, said structure, which is formed, multiple to be claimed to stand
112。
Both sides are provided with safe edge support 11 on transmission line, and guide wheel group 12 is provided with safe edge support, can aid in that thing is housed
The packaging bag transmission of material, avoids toppling over.
Said apparatus can be automatically performed the packing work of battery powder, avoid and endangered caused by manpower intervention,
Ensure that material is not contaminated, a container body of outer cover 111 can be set on above-mentioned transmission line, and set and separated in container body of outer cover
Chamber door, blanking station, sealing station and multiple title station are separated, it is necessary to by being to open, inside is full of inert gas, to ensure entirety bag
The reliable of environment is filled, improves packaging quality, integrated degree is high.Blanking station incorporates bag openning body, sack banding device and blanking
Device, it is compact-sized, equipment volume is greatly reduced, harmony is fabulous, in the experiment of tens thousand of times, action failure does not occur.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (9)
- A kind of 1. aluminium bag package machine, it is characterised in that：Including transmission line, blanking device, the blanking are provided with the transmission line Bag openning body is provided between device and transmission line, the bag openning body side is provided with packaging bag feed mechanism, the packaging bag Feed mechanism captures packaging bag and reprinted to bag openning body, and the bag openning body opens the package to feed for blanking device, described to open Weighing sensor is additionally provided with bag mechanism, sack banding device is additionally provided between the bag openning body and blanking device.
- A kind of 2. aluminium bag package machine according to claim 1, it is characterised in that：The bag openning body includes two along X-axis The tong of direction relative movement, the tong are made up of two fixture blocks along Y direction relative movement, and the tong is arranged on edge On the hoistable platform of Z-direction movement, two vacuums, two institutes are additionally provided with the hoistable platform between two tongs State vacuum relative movement to set, and be symmetrical arranged in the Y-axis direction, two tongs fit around to be formed out with two vacuums Bag space.
- A kind of 3. aluminium bag package machine according to claim 2, it is characterised in that：The sack banding device is included in banding Core, the banding inner core are arranged on out in bag space, and the banding inner core is internally provided with blanking channel, under the blanking device Material end is arranged in blanking channel, is additionally provided with the follow block sealed against with blanking channel on the discharging end, in the banding Core is provided with two banding blocks along the periphery of Y direction.
- A kind of 4. aluminium bag package machine according to claim 3, it is characterised in that：The hoistable platform passes through the first lift Structure is set on the stationary platform, and two sides of the fixed platform are connected by the second elevating mechanism with installation supporting plate, Weighing sensor is provided between the installation supporting plate and the second elevating mechanism, the banding inner core is arranged on fixed platform On.
- A kind of 5. aluminium bag package machine according to claim any one of 1-4, it is characterised in that：The packaging bag feed mechanism Including feeding bottom plate, the feeding backplate surface is provided with retainer platform, and the retainer platform surface is provided with positioning framework, institute State and packaging bag is stacked with positioning framework, the retainer mesa base is provided with lead screw transmission mechanism, the retainer platform side Feeding bottom plate on be additionally provided with reprinting frame, reprinting sliding part is provided with the reprinting frame, is set on the reprinting sliding part There is rotating part, the rotating part is connected with reprinting crawl bar, and described reprint is provided with sucker on crawl bar, described to reprint crawl bar Packaging bag on crawl retainer platform is reprinted to bag openning body.
- A kind of 6. aluminium bag package machine according to claim 5, it is characterised in that：It is fixed to be additionally provided with the reprinting crawl bar Level sensor, the 3rd elevating mechanism is additionally provided between the rotating part and reprinting sliding part.
- A kind of 7. aluminium bag package machine according to claim 1, it is characterised in that：Vacuum suction is additionally provided with the transmission line Mouth, the vacuum slot are arranged on the 4th elevating mechanism, and the vacuum slot both sides are symmetrically arranged with two sack grip blocks, The sack grip block is connected with sack gripper cylinder, and avoidance groove, two bags are provided with the middle part of the sack grip block The avoidance groove of mouth grip block cooperatively forms suction nozzle reserved opening, and the sack grip block top is provided with heat-sealing block, the heat-sealing Block is connected with heat-sealing cylinder.
- A kind of 8. aluminium bag package machine according to claim 1, it is characterised in that：Crawl folder is additionally provided with the transmission line Manipulator is held, the crawl clamping manipulator is arranged on the 5th elevating mechanism, and the 5th elevating mechanism is arranged on reprinting and moved On dynamic model block, the transmission line side is additionally provided with defective products transmission belt, the corresponding transmission line of the crawl clamping manipulator On be additionally provided with Weighing module.
- A kind of 9. aluminium bag package machine according to claim 1, it is characterised in that：Both sides are provided with safe edge on the transmission line Support, guide wheel group is provided with the safe edge support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720166657.4U CN207060521U (en) | 2017-02-23 | 2017-02-23 | A kind of aluminium bag package machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720166657.4U CN207060521U (en) | 2017-02-23 | 2017-02-23 | A kind of aluminium bag package machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207060521U true CN207060521U (en) | 2018-03-02 |
Family
ID=61500772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720166657.4U Withdrawn - After Issue CN207060521U (en) | 2017-02-23 | 2017-02-23 | A kind of aluminium bag package machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207060521U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106882424A (en) * | 2017-02-23 | 2017-06-23 | 苏州博涛机电设备有限公司 | A kind of aluminium bag package machine |
| CN111846419A (en) * | 2020-06-05 | 2020-10-30 | 郑州裕恒科技有限公司 | Full-automatic packaging equipment |
-
2017
- 2017-02-23 CN CN201720166657.4U patent/CN207060521U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106882424A (en) * | 2017-02-23 | 2017-06-23 | 苏州博涛机电设备有限公司 | A kind of aluminium bag package machine |
| CN111846419A (en) * | 2020-06-05 | 2020-10-30 | 郑州裕恒科技有限公司 | Full-automatic packaging equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103662138B (en) | For packing the wrapped one machine of bar product | |
| CN102700767B (en) | Material packaging method and device of horizontally-conveyed full bag fixed by bag filling mechanism | |
| CN106882424A (en) | A kind of aluminium bag package machine | |
| CN106956816B (en) | A kind of rubber gloves packaging production system | |
| CN207141440U (en) | Automatic multi-function cantilevered bulk packer | |
| CN205998223U (en) | A kind of product packaging production line | |
| CN105539921A (en) | Automatic packaging method | |
| CN207275103U (en) | Packaging bag storage bag device | |
| CN114789805A (en) | Automatic packaging system for flexible container bag | |
| CN207258096U (en) | A kind of superfine powder packing machine | |
| CN207060521U (en) | A kind of aluminium bag package machine | |
| CN102633014A (en) | Secondary bagging method and device | |
| CN209209098U (en) | Three bandings vacuumize online packing machine for powder | |
| CN109552682A (en) | Three bandings vacuumize online packing machine for powder and its working method | |
| CN107399458A (en) | A kind of superfine powder packing machine | |
| CN113734544A (en) | Kit packaging equipment | |
| CN113859646A (en) | Automatic sorting and bagging equipment | |
| CN115303519A (en) | Material packaging equipment | |
| CN205891456U (en) | System of processing of packing is weighed to fastener flexibility | |
| CN109956069A (en) | A kind of PVC glove is in wire wrapping production system | |
| CN108408092A (en) | The automatic packing complete equipment of resin particle shape material | |
| CN207060517U (en) | A kind of roller furnace sinters microparticle packaging bag cutting agency | |
| CN204623899U (en) | A kind of heavy film wrapping machine | |
| TWM365321U (en) | Tea packing machine with auto-filling and auto-sealing capability | |
| CN206679391U (en) | A kind of roller furnace sintering microparticle packaging bag enclosing mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 215500 No. 18, Fuli Road, Xinzhuang Town, Changshu City, Suzhou City, Jiangsu Province Patentee after: Jiangsu Botao Intelligent Thermal Engineering Co.,Ltd. Address before: No.8, Jialing village, Xinzhuang Town, Changshu City, Suzhou City, Jiangsu Province Patentee before: SUZHOU BOTAO EQUIPMENT Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180302 Effective date of abandoning: 20221018 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180302 Effective date of abandoning: 20221018 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |