CN203543338U - Transfer gripper mechanism of offset press - Google Patents
Transfer gripper mechanism of offset press Download PDFInfo
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- CN203543338U CN203543338U CN201320564660.3U CN201320564660U CN203543338U CN 203543338 U CN203543338 U CN 203543338U CN 201320564660 U CN201320564660 U CN 201320564660U CN 203543338 U CN203543338 U CN 203543338U
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Abstract
The utility model discloses a transfer gripper mechanism of an offset press. The transfer gripper mechanism of the offset press can further improve accuracy of transfer gripper on-off actions and whole swing stability and reliability, and comprises a sheet transfer cylinder, a sheet transfer hand, a gripper on-off mechanism and a sheet transfer hand swing mechanism, wherein the gripper on-off mechanism comprises a drive gear, a gripper on-off control cam, a pair of drive swing rods, a swing rod cam, a transition swing rod and a drive connecting rod, the drive gear is fixedly arranged on a drive side shaft head of the sheet transfer cylinder, one end of the drive swing rods is fixedly arranged on a swing rod shaft, the swing rod cam is arranged on a cam shaft, one end of the transition swing rod is fixedly arranged on the swing rod shaft, the two ends of the drive connecting rod are respectively hinged with the other end of the transition swing rod and the tail portion of the swing rod cam, and an arc slot which is embedded with an on-off gripper ball is arranged on the inner side surface of the head portion of the swing rod cam. The sheet transfer hand swing mechanism comprises a drive gear, a swing control cam and a pair of drive swing rods, wherein the drive gear is engaged with the drive gear, the swing control cam and the drive gear are fixedly arranged on the drive shaft, and one end of the drive swing rods is fixedly arranged on a drive side shaft head of a sheet transfer main shaft.
Description
Technical field
The utility model relates to a kind of offset press, is specifically related to a kind of transfer gripper mechanism of offset press, for driving the switching of the transfer gripper of sway downward paper feeding mechanical, realizes the object that feeding mechanism is successfully stung paper.
Background technology
Feeding mechanism in offset press, by the difference of the route mode of transfer, is divided into three major types: directly transfer, transfer and surmount continuous paper indirectly.
Directly transfer, be paper after defeated cardboard location, the mode of directly being held in the mouth by the tooth row on impression cylinder.
Transfer indirectly, that paper is after defeated cardboard location, first the tooth row by feeding mechanism holds in the mouth, by transfer gripper row, given again the mode of the tooth row on impression cylinder, the feeding mechanism of its pilot process has a lot of different ways of realization, and sway downward paper feeding mechanical is a kind of transfer form being most widely used.
Surmount continuous paper, be different from above-mentioned two kinds of modes, the positioning element of paper, not on defeated cardboard, and is arranged on impression cylinder.Paper is when defeated cardboard sends, and its speed is slightly larger than the superficial velocity of impression cylinder, and paper utilizes speed difference to position exactly, and then the tooth row who is stamped on cylinder holds in the mouth.
Sway downward paper feeding mechanical, is applied in the printing machine of indirect transfer mode, and as current more advanced a kind of transfer implementation, its mechanical mechanism is one of emphasis of printing industry research.After paper is located on defeated cardboard, generally all by a feeding mechanism, paper is accelerated to the speed identical with printing cylinder speed from inactive state, to realize the handing-over of paper.Say in a sense, it has determined that the performance of printing machine is good and bad.
Because paper is after the location, front lay place of defeated paper platen, remain static, in order to guarantee chromatography precision, gritting one's teeth of feeding mechanism also will be opened under the state of absolute rest, splicing.Structure adopted eccentric upper pendulum-type feeding mechanism more in the past, and this mechanism, owing to having increased rotatablely moving of eccentric bushing, makes transfer gripper complicated movement, again due to effect of inertia, has greater impact during high speed.In addition, stressed even for guaranteeing, cam mechanism adopts spring and constant force mechanisms, thereby makes mechanism further complicated, has reduced mechanism reliability.So current most of high-speed offset press all adopts sway downward paper feeding mechanical.
In the utility model patent that the applicant is ZL201120432850.0 in the patent No., disclose a kind of " sway downward paper feeding mechanical ", its operation principle as shown in Figure 1.The main motor-driven gear 18 of offset press and transfer gripper are controlled cam 2 rotations, again by gear 18 driven wheels 17 and transfer hand control cam 1, make transfer hand control cam 1 and transfer gripper control cam 2 with identical angular speed rotation, transfer hand control cam 1 and transfer gripper are controlled cam 2 and by peripheral curve, are main cam and the auxiliary cam formation of conjugate curves, the peripheral curve of main cam and the peripheral curve of auxiliary cam of transfer hand control cam 1 drive respectively a pair of transfer hand fork 3 simultaneously, 16 form how much sealings, the peripheral curve of main cam and the peripheral curve of auxiliary cam that transfer gripper is controlled cam 2 drive respectively a pair of transfer gripper fork 4, 14 form how much sealings, a pair of transfer hand fork 3, 16 drive transfer main shaft to realize expection again swings, driving transfer hand to realize expection swings.Swing arm 13 and a pair of transfer gripper fork 4,14 are packed on same axis by key, control under the driving of cam 2 at transfer gripper, and swing arm 13 drives swing link cam 6 to realize expection again and swings.Swing link cam 6 by the effect of stage clip 5, forms force-closedly with swing arm 13 under normal printing state, makes swing link cam 6(see that Fig. 2 boss working face (seeing the II in Fig. 2 b) a) contacts with the roller in swing arm 13 all the time.When transfer hand swing arm 11 swings to defeated cardboard 40 place, keeping static slightly stops, now swing link cam 6 is counterclockwise swung to extreme higher position by low level, thereby opening and closing ball 10 is driven grit one's teeth axle 9 and drive transfer gripper 8 and bite-block 7 closed and bite the paper on defeated cardboard 40, paper is stung in realization, and transfer hand accelerates the counterclockwise bottom again, in this process, swing link cam 6 keeps extreme higher position, that is to say that transfer gripper 8 keeps stinging paper state.When transfer hand swing arm 11 swings to sheet transfer drum delivery position, keep synchronized with sheet transfer drum, now swing link cam 6 clockwise by extreme higher position to lower swing, thereby opening and closing ball 10 driven grit one's teeth axle 9 and drive transfer gripper 8 to open, paper passes to sheet transfer drum from feeder, realizes the normal handing-over of paper.After having joined, paper is along with the printing element that rotates into of sheet transfer drum, and after this, transfer hand swing arm 11 continues the bottom and slowly slows down, until swing to bottom, stops, and steadily returns to subsequently defeated cardboard 40 places again, waits for and gets paper next time.
Also there is following deficiency in the technical scheme of above-mentioned utility model patent:
1. by spring 5, the boss on swing link cam 6 is contacted all the time with the roller in swing arm 13, because spring 5 exists the variation of power, easily cause swing link cam-spring system impact shock, while particularly running up, to paper, handing-over is transmitted and is had a negative impact;
2. the complex structure of swing link cam 6, has two working faces (curved groove I as shown in Figure 2 b and boss II), is difficult to guarantee machining accuracy, makes processing cost higher.
Summary of the invention
The purpose of this utility model is to overcome the defect of prior art, and a kind of transfer gripper mechanism of offset press is provided, and it can further improve the accuracy of transfer gripper on-off action, and can further improve reliability and stationarity that whole mechanism swings.
The purpose of this utility model is achieved in that a kind of transfer gripper mechanism of offset press, comprises and is connected across driving side wallboard and the sheet transfer drum between fore side wallboard, the transfer hand of offset press, grit one's teeth switching mechanism and transfer hand swing mechanism, wherein,
Described transfer hand comprises that the transfer main shaft being connected across between described driving side wallboard and fore side wallboard, a pair of one end are packed in respectively the transfer swing arm at transfer main shaft two, are connected across the gripper cushion mounting plate between the other end of a pair of transfer swing arm and the axle of gritting one's teeth, a plurality of compartment of terrain is arranged on bite-block on gripper cushion mounting plate, be a plurality ofly sleeved on the axle of gritting one's teeth and the transfer gripper corresponding with bite-block and is arranged on the opening and closing ball of the driving end of the axle of gritting one's teeth;
The described switching mechanism of gritting one's teeth comprises that a pair of active fork, that the driving gear on the driving side spindle nose that is packed in described sheet transfer drum and the open and close controlling cam of gritting one's teeth, one end are packed on a fork axle is arranged on swing link cam, a transition fork and the kinematic link on a camshaft; Main cam and auxiliary cam that the described open and close controlling cam of gritting one's teeth is conjugate curves by peripheral curve form; The other end of described a pair of active fork coincide correspondingly in the peripheral curve of the main cam of the described open and close controlling cam of gritting one's teeth and the peripheral curve of auxiliary cam on; One end of described transition fork is packed on described fork axle; The other end of one end of described kinematic link and described transition fork is hinged; Described swing link cam comprises head and the afterbody that center of rotation and one end are connected with center of rotation respectively, the center of rotation of this swing link cam is hinged on described camshaft, the other end of the afterbody of this swing link cam and the other end of described kinematic link are hinged, on the medial surface of the head of this swing link cam, offer an arc groove, so that described opening and closing ball is rollably embedded in this arc groove;
Described transfer hand swing mechanism comprises with the travelling gear of described driving gear engagement, be packed in swing on a power transmission shaft with travelling gear controls a pair of transmission fork on the driving side spindle nose that cam and one end be packed in described transfer main shaft; Described swing is controlled main cam and the auxiliary cam that cam is also conjugate curves by peripheral curve and is formed; The other end of described a pair of transmission fork coincide correspondingly in the peripheral curve of the main cam of described swing control cam and in the peripheral curve of auxiliary cam,
The transfer gripper mechanism of above-mentioned offset press, wherein, a bell-type bracing frame is also installed in the outside of described driving side wallboard; The driving side spindle nose of described sheet transfer drum and the driving side spindle nose of described transfer main shaft pass respectively described driving side wallboard and are arranged on support frame as described above by bearing; Described fork axle and described power transmission shaft are connected across between described driving side wallboard and support frame as described above by bearing respectively.
The transfer gripper mechanism of above-mentioned offset press, wherein, described camshaft is arranged on the medial surface of described driving side wallboard by a L bracket.
The transfer gripper mechanism of above-mentioned offset press, wherein, installs a L bracket on the medial surface of described driving side wallboard, described camshaft is connected across between described driving side wallboard and described L bracket by bearing.
The transfer gripper mechanism of above-mentioned offset press, wherein, one end of described a pair of transmission fork is packed on the driving side spindle nose of described transfer main shaft by key.
The technical scheme of the transfer gripper mechanism of offset press of the present utility model compared with prior art has following characteristics:
First: whole mechanism does not have spring, the impact shock while having avoided the pressure of spring to change, swing link cam-spring system having been caused, is conducive to paper and steadily joins;
Second: adopt transition fork and kinematic link to drive swing link cam, mechanism is taken up room less, structure is simpler;
The the 3rd: on swing link cam, only have a curved groove, and this curved groove is offered into arc groove, the structure of swing link cam is significantly simplified, be conducive to improve machining accuracy, further reduce costs.
The transfer gripper mechanism of the transfer gripper mechanism offset press of offset press of the present utility model, adapt to the print speed printing speed improving constantly, the hunting frequency that can adapt to more and more faster transfer hand, improve further the accuracy of transfer gripper on-off action, and can further improve reliability and stationarity that whole mechanism swings.
Accompanying drawing explanation
Fig. 1 is the fundamental diagram of sway downward paper feeding mechanical of the offset press of prior art;
Fig. 2 a is the structural representation of the swing link cam in the sway downward paper feeding mechanical of offset press of prior art;
Fig. 2 b is that A in Fig. 2 a is to view;
Fig. 3 is the profile of the transfer gripper mechanism of offset press of the present utility model;
Fig. 4 is the side view of the transfer gripper mechanism of offset press of the present utility model;
Fig. 5 a is the structural representation of the swing link cam in the transfer gripper mechanism of offset press of the present utility model;
Fig. 5 b is that B in Fig. 5 a is to view;
Fig. 5 c is that C in Fig. 5 a is to view;
Fig. 6 is the fundamental diagram of the transfer gripper mechanism of offset press of the present utility model.
The specific embodiment
In order to understand the technical solution of the utility model better, below by specific embodiment, be also described in detail by reference to the accompanying drawings.
Refer to Fig. 3 to Fig. 5 c, the transfer gripper mechanism of offset press of the present utility model, comprises sheet transfer drum 26, transfer hand, grit one's teeth switching mechanism and transfer hand swing mechanism.
Transfer hand comprises that the transfer main shaft 24 being connected across between driving side wallboard 29 and fore side wallboard, a pair of one end are packed in respectively the transfer swing arm 3 at transfer main shaft 24 two, are connected across the gripper cushion mounting plate between the other end of a pair of transfer swing arm 3 and the axle 18 of gritting one's teeth, a plurality of compartment of terrain is arranged on bite-block 20 on gripper cushion mounting plate, be a plurality ofly sleeved on the axle 18 of gritting one's teeth and the transfer gripper 19 and corresponding with bite-block 20 is arranged on the opening and closing ball 17 of the driving end of the axle 18 of gritting one's teeth.The driving side spindle nose of transfer main shaft 24 passes driving side wallboard 29 and by bearing, is arranged on the base plate of bracing frame 30.
The switching mechanism of gritting one's teeth comprises driving gear 8, the open and close controlling of gritting one's teeth cam 2, a pair of active fork 4,5, a transition fork 10, a kinematic link 11 and a swing link cam 12, wherein:
Driving gear 8 and the open and close controlling cam 2 of gritting one's teeth are packed on the driving side spindle nose of sheet transfer drum 26;
Main cam and auxiliary cam that the open and close controlling of gritting one's teeth cam 2 is conjugate curves by peripheral curve form;
One end of a pair of active fork 4,5 and one end of transition fork 10 are packed on a fork axle 23 by key, and this fork axle 23 is connected across between the base plate of driving side wallboard 29 and bracing frame 30 by bearing; The other end of a pair of active fork 4,5 with roller coincide correspondingly in the peripheral curve of the main cam of the open and close controlling cam 2 of gritting one's teeth and in the peripheral curve of auxiliary cam;
The other end of one end of kinematic link 11 and transition fork 10 is hinged;
Transfer hand swing mechanism comprises that a travelling gear 9, swings control cam 1 and a pair of transmission fork 6,7, wherein:
Travelling gear 9 and driving gear 8 engagements;
One end of a pair of transmission fork 6,7 is packed in by key on the driving side spindle nose of transfer main shaft 24, the other end of this pair of transmission fork 6,7 with roller coincide correspondingly in the peripheral curve of main cam that swing to control cam 1 and in the peripheral curve of auxiliary cam.
Refer to Fig. 6, the operation principle of the transfer gripper mechanism of offset press of the present utility model is again:
The main motor of offset press drives driving gear 8 and grits one's teeth 2 rotations of open and close controlling cam, by driving gear 8, drive travelling gear 9 and swing again and control cam 1, making to swing control cam 1 rotates with identical angular speed with the open and close controlling cam 2 of gritting one's teeth, the peripheral curve of main cam of cam 1 is controlled in swing simultaneously and the peripheral curve of auxiliary cam drives respectively a pair of transmission fork 6,7 and form how much sealings, a pair of transmission fork 6,7 drives transfer main shaft 24 to realize expection by key again and swings, and also drives transfer swing arm 3 to realize expection simultaneously and swings.The peripheral curve of main cam of the open and close controlling of gritting one's teeth cam 2 and the peripheral curve of auxiliary cam drive respectively a pair of active fork 4,5, this a pair of active fork 4,5 forms how much sealings, because one end and a pair of active fork 4,5 of transition fork 10 is packed on a fork axle 23 by key, under the driving of the open and close controlling cam 2 of gritting one's teeth, a pair of active fork 4,5 rotates fork axle 23, just make transition fork 10 swing with a pair of active fork 4,5, then make swing link cam 12 realize expection swing by the hinged kinematic link 11 of the other end with transition fork 10.
According to the expection swaying movement regularity of the feeder of setting, when transfer swing arm 3 swings to defeated cardboard 40 place, keeping static slightly stops, now swing link cam 12 is counterclockwise to be swung to extreme higher position by low level, thereby make opening and closing ball 17 drive the axle 18 of gritting one's teeth to rotate and drive transfer gripper 19 and bite-block 20 closures and bite the paper on defeated cardboard, realize transfer gripper 19 and bite-block 20 and at defeated cardboard place, sting paper; After this, transfer swing arm 3 is accelerated the counterclockwise bottom under the driving that swings control cam 1, and in this process, the head 121 of swing link cam 12 keeps extreme higher positions, and transfer gripper 19 and bite-block 20 keep stinging paper state; When transfer swing arm 3 swings to sheet transfer drum 26 delivery position, transfer gripper 19 in transfer swing arm 3 keeps identical linear velocity with bite-block 20 and sheet transfer drum 26, now the head 121 of swing link cam 12 under the driving of the open and close controlling cam 2 of gritting one's teeth by extreme higher position clockwise direction lower swing, thereby opening and closing ball 17 driven grit one's teeth axle 18 and drive transfer gripper 8 and bite-block 20 opens, paper passes to sheet transfer drum 26 from feeder, realizes the normal handing-over of paper.After having joined, paper is just along with the printing element that rotates into of sheet transfer drum 26, and after this, transfer swing arm 3 continues the bottom and slowly slows down, until swing to bottom, stops, and returns to reposefully more subsequently defeated cardboard 40 places, waits for and gets paper next time.
Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, in the situation that not departing from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (5)
1. a transfer gripper mechanism for offset press, comprises and is connected across driving side wallboard and the sheet transfer drum between fore side wallboard, the transfer hand of offset press, grit one's teeth switching mechanism and transfer hand swing mechanism, wherein,
Described transfer hand comprises that the transfer main shaft being connected across between described driving side wallboard and fore side wallboard, a pair of one end are packed in respectively the transfer swing arm at transfer main shaft two, are connected across the gripper cushion mounting plate between the other end of a pair of transfer swing arm and the axle of gritting one's teeth, a plurality of compartment of terrain is arranged on bite-block on gripper cushion mounting plate, be a plurality ofly sleeved on the axle of gritting one's teeth and the transfer gripper corresponding with bite-block and is arranged on the opening and closing ball of the driving end of the axle of gritting one's teeth;
The described switching mechanism of gritting one's teeth comprises that the driving gear on the driving side spindle nose that is packed in described sheet transfer drum and the open and close controlling cam of gritting one's teeth, one end are packed in a pair of active fork and a swing link cam being arranged on a camshaft on a fork axle; Main cam and auxiliary cam that the described open and close controlling cam of gritting one's teeth is conjugate curves by peripheral curve form; The other end of described a pair of active fork coincide correspondingly in the peripheral curve of the main cam of the described open and close controlling cam of gritting one's teeth and the peripheral curve of auxiliary cam on;
Described transfer hand swing mechanism comprises with the travelling gear of described driving gear engagement, be packed in swing on a power transmission shaft with travelling gear controls a pair of transmission fork on the driving side spindle nose that cam and one end be packed in described transfer main shaft; Described swing is controlled main cam and the auxiliary cam that cam is also conjugate curves by peripheral curve and is formed; The other end of described a pair of transmission fork coincide correspondingly in the peripheral curve of the main cam of described swing control cam and in the peripheral curve of auxiliary cam; It is characterized in that,
The described switching mechanism of gritting one's teeth also comprises a transition fork and a kinematic link;
One end of described transition fork is packed on described fork axle;
The other end of one end of described kinematic link and described transition fork is hinged;
Described swing link cam comprises head and the afterbody that center of rotation and one end are connected with center of rotation respectively, the center of rotation of this swing link cam is hinged on described camshaft, the other end of the afterbody of this swing link cam and the other end of described kinematic link are hinged, on the medial surface of the head of this swing link cam, offer an arc groove, so that described opening and closing ball is rollably embedded in this arc groove.
2. the transfer gripper mechanism of offset press according to claim 1, is characterized in that,
A bell-type bracing frame is also installed in the outside of described driving side wallboard;
The driving side spindle nose of described sheet transfer drum and the driving side spindle nose of described transfer main shaft pass respectively described driving side wallboard and are arranged on support frame as described above by bearing;
Described fork axle and described power transmission shaft are connected across between described driving side wallboard and support frame as described above by bearing respectively.
3. the transfer gripper mechanism of offset press according to claim 1, is characterized in that, described camshaft is arranged on the medial surface of described driving side wallboard by a L bracket.
4. the transfer gripper mechanism of offset press according to claim 1, is characterized in that, a L bracket is installed on the medial surface of described driving side wallboard, and described camshaft is connected across between described driving side wallboard and described L bracket by bearing.
5. the transfer gripper mechanism of offset press according to claim 1, is characterized in that, one end of described a pair of transmission fork is packed on the driving side spindle nose of described transfer main shaft by key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320564660.3U CN203543338U (en) | 2013-09-12 | 2013-09-12 | Transfer gripper mechanism of offset press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320564660.3U CN203543338U (en) | 2013-09-12 | 2013-09-12 | Transfer gripper mechanism of offset press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203543338U true CN203543338U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320564660.3U Expired - Fee Related CN203543338U (en) | 2013-09-12 | 2013-09-12 | Transfer gripper mechanism of offset press |
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| CN (1) | CN203543338U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434267B (en) * | 2013-09-12 | 2015-05-13 | 上海光华印刷机械有限公司 | Gripper Ttransferring gripper mechanism of offset printing machine |
| CN105564017A (en) * | 2014-10-31 | 2016-05-11 | 曼罗兰纸张有限责任公司 | Gripper controlling device for decoupling |
| CN107323079A (en) * | 2017-08-14 | 2017-11-07 | 上海瑞源印刷设备有限公司 | The tooth regulating positioning device such as iron-printing machine iron plate |
| CN107443887A (en) * | 2017-08-14 | 2017-12-08 | 上海瑞源印刷设备有限公司 | Iron-printing machine impression cylinder is grited one's teeth the stable rotation control mechanism of axle |
-
2013
- 2013-09-12 CN CN201320564660.3U patent/CN203543338U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434267B (en) * | 2013-09-12 | 2015-05-13 | 上海光华印刷机械有限公司 | Gripper Ttransferring gripper mechanism of offset printing machine |
| CN105564017A (en) * | 2014-10-31 | 2016-05-11 | 曼罗兰纸张有限责任公司 | Gripper controlling device for decoupling |
| CN107323079A (en) * | 2017-08-14 | 2017-11-07 | 上海瑞源印刷设备有限公司 | The tooth regulating positioning device such as iron-printing machine iron plate |
| CN107443887A (en) * | 2017-08-14 | 2017-12-08 | 上海瑞源印刷设备有限公司 | Iron-printing machine impression cylinder is grited one's teeth the stable rotation control mechanism of axle |
| CN107323079B (en) * | 2017-08-14 | 2023-02-17 | 上海瑞源印刷设备有限公司 | Equal-tooth adjusting and positioning device for iron plate of metal decorating machine |
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Effective date of registration: 20151231 Address after: 223802 Jiangsu Province, Suqian City Industrial Park Road on the west side of sankeshu Township Economic and Technological Development Zone (Suqian red dream mattress factory building 2) Patentee after: Guanghua Machinery Manufacturing Limited by Share Ltd Address before: 200436, No. 520, true road, Baoshan District, Shanghai Patentee before: Shanghai Guanghua Printing Machine Co., Ltd. |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20160620 Address after: Suqian City, Jiangsu province 223621 Township Industrial Park Road on the west side of three in Suqian economic and Technological Development Zone Zhao Zhuangzu Zhu Village Patentee after: Jiangsu Sino German Packaging Machinery Co., Ltd. Address before: 223802 Jiangsu Province, Suqian City Industrial Park Road on the west side of sankeshu Township Economic and Technological Development Zone (Suqian red dream mattress factory building 2) Patentee before: Guanghua Machinery Manufacturing Limited by Share Ltd |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20170912 |
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| CF01 | Termination of patent right due to non-payment of annual fee |