CN210365652U - Automatic stirrup conveying device - Google Patents

Automatic stirrup conveying device Download PDF

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Publication number
CN210365652U
CN210365652U CN201920724867.XU CN201920724867U CN210365652U CN 210365652 U CN210365652 U CN 210365652U CN 201920724867 U CN201920724867 U CN 201920724867U CN 210365652 U CN210365652 U CN 210365652U
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CN
China
Prior art keywords
conveying
stirrup
guide rail
connecting rod
stirrup conveying
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Expired - Fee Related
Application number
CN201920724867.XU
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Chinese (zh)
Inventor
陈誉宏
冼柏恩
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Hefei Shuanghu Machinery Equipment Co ltd
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Quanzhou Eagle Wolf Kitchen And Bathroom Co Ltd
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Publication of CN210365652U publication Critical patent/CN210365652U/en
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Abstract

The utility model discloses an automatic stirrup conveying device, which comprises a support, a conveying guide rail arranged on the support, a plurality of stirrup conveying pieces and a stirrup conveying mechanism used for driving the stirrup conveying pieces to circularly move on the conveying guide rail, wherein the conveying guide rail is in a closed ring shape, a straight line section is arranged at the position, corresponding to a fixture, of the closed ring-shaped conveying guide rail, and the length of the straight line section is greater than or equal to that of a jig frame to be built; the stirrups conveying pieces are arranged on the conveying guide rail at equal intervals, a connecting piece is arranged between every two adjacent stirrups conveying pieces, and two ends of the connecting piece are respectively connected with the two adjacent stirrups conveying pieces in a rotating mode. The automatic stirrup conveying device can automatically convey stirrups into the fixture, so that the workload of workers is reduced, the working efficiency is improved, and the manufacturing cost is reduced.

Description

Automatic stirrup conveying device
Technical Field
The utility model relates to a prefabricated floor's manufacture equipment, concretely relates to automatic conveyor of stirrup.
Background
Because the prefabricated building has high construction speed, low production cost, energy conservation and environmental protection, the country requires that prefabricated buildings such as prefabricated concrete structures, steel structures, modern wood structures and the like are developed according to local conditions, and strives for about 10 years, so that the proportion of the prefabricated building occupying the newly-built building area reaches 30 percent; the beamless floor structure has the characteristic of lower floor height on the premise of the same use space, has good economical efficiency when being applied to underground buildings and multi-layer parking, can be cast in situ and can be prefabricated and assembled, thereby having large market space.
The key of the assembly type building is to divide the building structure into prefabricated components which can be produced, transported and installed in factories and are safe, reliable, economical and reasonable, and to realize the assembly construction of building industrialization. In the production process, a jig frame of the prefabricated part needs to be built, and then the required prefabricated part is manufactured in a concrete pouring mode. In the process of building the jig frame, the stirrups need to be positioned through the fixtures to prevent the stirrups from moving, then additional steel bars and longitudinal steel bars are installed, and finally the additional steel bars, the longitudinal steel bars and the stirrups are bound together to form the jig frame.
However, in the process of building the jig, the stirrups are usually carried and placed in the fixture manually by workers, so that the workload of the workers is increased, the working efficiency is low, and the manufacturing cost is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide an automatic conveyor of stirrup, this automatic conveyor of stirrup can carry the stirrup automatically in fixture to alleviate staff's work burden, improve work efficiency and reduce manufacturing cost.
The utility model provides a technical scheme of above-mentioned technical problem is:
an automatic stirrup conveying device comprises a support, a conveying guide rail arranged on the support, a plurality of stirrup conveying pieces and a stirrup conveying mechanism used for driving the stirrup conveying pieces to circularly move on the conveying guide rail, wherein the conveying guide rail is in a closed ring shape, a straight line section is arranged at a position, corresponding to a fixture, of the closed ring-shaped conveying guide rail, and the length of the straight line section is greater than or equal to that of a jig frame to be built; the stirrups conveying pieces are arranged on the conveying guide rail at equal intervals, a connecting piece is arranged between every two adjacent stirrups conveying pieces, two ends of the connecting piece are respectively and rotatably connected with the two adjacent stirrups conveying pieces, and the axis of a rotating center of the rotating connection is perpendicular to the horizontal plane.
Preferably, the conveying guide rail is oblong and comprises two circular arc sections and two straight line sections for connecting the two circular arc sections, wherein one of the two straight line sections is positioned at the fixture, and the other straight line section is positioned at the automatic stirrup feeding device; the stirrup conveying pieces are arranged on the two straight line sections at equal intervals, and the distance between the stirrup conveying pieces is equal to the distance between stirrups in a jig to be built.
Preferably, the stirrup conveying members on the two straight sections are driven by the two stirrup conveying mechanisms respectively.
Preferably, the connecting piece includes a first connecting rod disposed on one of the two adjacent stirrup conveying members, a second connecting rod disposed on the other stirrup conveying member, and a first adjusting mechanism disposed between the first connecting rod and the second connecting rod and used for adjusting the distance between the two adjacent stirrup conveying members, wherein the first connecting rod and the second connecting rod are respectively rotatably connected to the two adjacent stirrup conveying members, and the axes of the rotation centers of the first connecting rod and the second connecting rod are perpendicular to the horizontal plane.
Preferably, the first adjusting mechanism comprises external threads arranged on the first connecting rod and the second connecting rod and an adjusting threaded sleeve, wherein the external threads are arranged on the end part, far away from the rotation center, of the first connecting rod and the second connecting rod; and the two ends of the adjusting threaded sleeve are respectively provided with internal threads matched with the external threads on the first connecting rod and the second connecting rod.
Preferably, the stirrup conveying piece comprises a conveying installation seat and a clamping piece arranged at the lower end of the conveying installation seat, wherein the clamping piece comprises a first clamping block, a second clamping block and an elastic element, a first clamping surface is arranged on the first clamping block, a second clamping surface is arranged on the second clamping block at a position opposite to the first clamping surface, and the elastic force of the elastic element enables the first clamping block and the second clamping block to clamp the stirrup between the first clamping surface and the second clamping surface.
Preferably, the number of the clamping pieces is two, and the two clamping pieces are symmetrically arranged at two ends of the conveying installation seat.
Preferably, the stirrup conveying piece further comprises a second adjusting mechanism for adjusting the distance between the two clamping pieces, the second adjusting mechanism comprises an adjusting plate, an adjusting groove is formed in the adjusting plate, and a first clamping block or a second clamping block in the clamping pieces is installed in the adjusting groove through an adjusting screw.
Preferably, the stirrup conveying mechanism comprises a rack arranged at the upper end of one side of the conveying guide rail and a movable trolley arranged at the head end or the tail end of the stirrup conveying pieces, wherein the movable trolley comprises a fixed seat, a trolley driving motor arranged on the fixed seat and a gear arranged on a main shaft of the trolley driving motor, the fixed seat is connected with the conveying installation seat, and the gear is meshed with the rack.
Preferably, stirrup conveying mechanism still is including setting up moving trolley and stirrup transport piece and conveying guide rail between the guiding mechanism, guiding mechanism is including setting up the guiding axle and the leading wheel of setting on the guiding axle of conveying mount pad and fixing base both sides, wherein, guiding axle one end with carry mount pad or fixing base to be connected, the other end extends to in conveying guide rail's the guide way, the leading wheel is installed on keeping away from in the guiding axle and carrying the tip of mount pad and fixing base, this leading wheel and the cooperation of conveying guide rail's guide way.
The utility model discloses an automatic conveyor's of stirrup theory of operation is:
during the operation, stirrup conveying mechanism drives the stirrup and carries a motion on carrying the guide rail, carries the material loading station (this material loading station can be all positions except the straightway in carrying the guide rail) on carrying the guide rail as the stirrup, and stirrup automatic feeding device carries the stirrup and carries the piece, and then, stirrup conveying mechanism drives this clamping has the stirrup to carry a continuation motion. Whenever when the stirrup conveying piece moves to the feeding station, the stirrup automatic feeding device can convey stirrups to the corresponding stirrup conveying piece. When the stirrup conveying part clamped with the stirrups moves and is fully distributed on the straight line section of the conveying guide rail, the straight line section of the conveying guide rail is positioned on the fixture, so that the stirrup conveying mechanism stops working and waits for building of the jig frame. In the process, the additional steel bar conveying device and the longitudinal steel bar conveying device convey the additional steel bars and the longitudinal steel bars into the fixture to be bound with the stirrups located in the straight line sections to form a jig, the stirrups are released by the stirrup conveying part, and then the stirrup conveying mechanism drives the stirrup conveying part to move continuously. Because the conveying guide rail is in a closed ring shape, after the stirrups in the stirrup conveying piece reaching the straight line section complete the construction of the jig frame, part of the stirrups conveying piece completes the clamping of the stirrups, so that the construction of the jig frame can be continuously carried out, and the construction efficiency of the jig frame is improved.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. the utility model discloses an automatic conveyor of stirrup can realize the circulation clamping and the transport of stirrup for the stirrup that arrives the straightway carries the stirrup in the piece and accomplishes the back of buildding of bed-jig, has the clamping that a part stirrup was carried the piece and is accomplished the stirrup in addition, just so can guarantee that buildding of bed-jig can go on in succession, thereby improves the efficiency of buildding of bed-jig.
2. The utility model discloses an automatic conveyor of stirrup can realize the automatic transport of stirrup, need not the manual participation of staff to alleviate staff's intensity of labour.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the automatic stirrup conveying device of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a sectional view taken along a-a in fig. 2.
Fig. 4 is a partially enlarged view of a portion a in fig. 3.
Fig. 5 is a schematic perspective view (partial) of the stirrup conveying mechanism.
Fig. 6 to 8 are schematic structural views of the stirrup conveying member, wherein fig. 6 is a schematic perspective structural view, fig. 7 is a front view, and fig. 8 is a right side view.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
Referring to fig. 1 to 8, the automatic stirrup conveying device of the present invention includes a support 1, a conveying guide rail 2 disposed on the support 1, a plurality of stirrup conveying members 3, and a stirrup conveying mechanism 5 for driving the stirrup conveying members 3 to move circularly on the conveying guide rail 2, wherein the conveying guide rail 2 is in a closed ring shape, a straight line segment 2-1 is disposed at a position corresponding to a fixture on the closed ring-shaped conveying guide rail 2, and the length of the straight line segment 2-1 is greater than or equal to the length of a jig frame to be built; the stirrups conveying pieces 3 are arranged on the conveying guide rail 2 at equal intervals, a connecting piece 4 is arranged between every two adjacent stirrups conveying pieces 3, and two ends of each connecting piece 4 are respectively connected with the two adjacent stirrups conveying pieces 3 in a rotating mode.
Referring to fig. 1-8, the conveying guide rail 2 is oblong, and the conveying guide rail 2 includes two circular arc sections 2-2 and two straight line sections 2-1 for connecting the two circular arc sections 2-2, wherein one straight line section 2-1 of the two straight line sections 2-1 is located at the fixture, and the other straight line section 2-1 is located at the stirrup automatic feeding device; the stirrup conveying pieces 3 are arranged on the two straight line sections 2-1 at equal intervals, and the distance between the stirrup conveying pieces 3 is equal to the distance between stirrups in a jig frame to be built. After the stirrup in the stirrup conveying piece 3 in the straight line section 2-1 at the fixture completes the building work of the jig frame, the stirrup conveying piece 3 in the straight line section 2-1 at the automatic stirrup feeding device starts to clamp the stirrup, so that the building of the jig frame and the clamping of the stirrup can be carried out circularly, and the building rate of the jig frame is increased.
Referring to fig. 1 to 8, the plurality of stirrup conveying members 3 on the two straight sections 2-1 are driven by two stirrup conveying mechanisms 5, respectively.
Referring to fig. 1 to 8, the connecting member 4 includes a first connecting rod 4-1 disposed on one of the two adjacent stirrup conveying members 3, a second connecting rod 4-2 disposed on the other stirrup conveying member 3, and a first adjusting mechanism disposed between the first connecting rod 4-1 and the second connecting rod 4-2 for adjusting the distance between the two adjacent stirrup conveying members 3, wherein the first connecting rod 4-1 and the second connecting rod 4-2 are respectively rotatably connected to the two adjacent stirrup conveying members 3, and the axes of the centers of rotation of the first connecting rod 4-1 and the second connecting rod 4-2 are perpendicular to the horizontal plane. The purpose is as follows: 1. because two adjacent stirrup conveying pieces 3 are hinged through the connecting piece 4, when the stirrup conveying mechanism 5 drives the stirrup conveying pieces 3 to move to the arc sections 2-2, the stirrup conveying pieces 3 can smoothly turn. 2. Due to the fact that the first adjusting mechanism used for adjusting the distance between the two adjacent stirrup conveying pieces 3 is arranged between the first connecting rod 4-1 and the second connecting rod 4-2, the distance between the two adjacent stirrup conveying pieces 3 is changed through the first adjusting mechanism, and therefore the building of the jig frames with different specifications is adapted.
Referring to fig. 1 to 8, the first adjusting mechanism includes external threads provided on the first and second connecting rods 4-1 and 4-2 and an adjusting screw sleeve 4-3, wherein the external threads are provided on an end portion of the first and second connecting rods 4-1 and 4-2 away from a rotation center; and internal threads matched with the external threads on the first connecting rod 4-1 and the second connecting rod 4-2 are respectively arranged at two ends of the adjusting screw sleeve 4-3. Besides the manual adjustment mode, automatic adjustment modes such as pneumatic adjustment or electric adjustment can also be adopted. Referring to fig. 1 to 8, the stirrup transporting member 3 comprises a transporting installation seat 3-1 and a clamping member arranged at the lower end of the transporting installation seat 3-1, wherein the clamping member comprises a first clamping block 3-2, a second clamping block 3-3 and an elastic element 3-4, wherein a first clamping surface is arranged on the first clamping block 3-2, a second clamping surface is arranged on the second clamping block 3-3 at a position opposite to the first clamping surface, and the elastic force of the elastic element 3-4 causes the first clamping block 3-2 and the second clamping block 3-3 to clamp the stirrup between the first clamping surface and the second clamping surface.
Referring to fig. 1-8, the number of the clamping members is two, and the two clamping members are symmetrically arranged at two ends of the conveying installation seat 3-1. Through setting up two holders, can increase the clamping-force to the stirrup to avoid the stirrup to appear because the clamping-force is not enough and the phenomenon that drops in handling.
Referring to fig. 1-8, the stirrup conveying member 3 further comprises a second adjusting mechanism for adjusting the distance between the two clamping members, the second adjusting mechanism comprises an adjusting plate 3-5, an adjusting groove 3-6 is formed in the adjusting plate 3-5, and a first clamping block 3-2 or a second clamping block 3-3 in the clamping members is mounted in the adjusting groove 3-6 through an adjusting screw 3-7. When the distance between the two clamping pieces needs to be adjusted, the adjusting screws 3-7 are loosened, the two clamping pieces are moved at the positions of the adjusting grooves 3-6, and then the screws are locked. Therefore, the distance between the two clamping pieces can be adjusted, and the clamping device can be suitable for clamping stirrups of different specifications.
Referring to fig. 1 to 8, the stirrup conveying mechanism 5 comprises a rack 5-1 arranged at the upper end of one side of the conveying guide rail 2 and a movable trolley arranged at the head end or the tail end of the stirrup conveying members 3, wherein the movable trolley comprises a fixed seat 5-2, a trolley driving motor 5-3 arranged on the fixed seat 5-2 and a gear 5-4 arranged on a main shaft of the trolley driving motor 5-3, the fixed seat 5-2 is connected with the conveying installation seat 3-1, and the gear 5-4 is meshed with the rack 5-1. Therefore, the trolley driving motor 5-3 drives the gear 5-4 to rotate, so as to drive the movable trolley and the stirrup conveying pieces 3 connected with the movable trolley to move on the conveying guide rail 2.
Referring to fig. 1-8, the stirrup conveying mechanism 5 further comprises a guide mechanism 6 disposed between the moving trolley and the stirrup conveying member 3 and the conveying guide rail 2, the guide mechanism 6 comprises a guide shaft 6-1 disposed on both sides of the conveying installation base 3-1 and the fixed base 5-2 and a guide wheel 6-2 disposed on the guide shaft 6-1, wherein one end of the guide shaft 6-1 is connected with the conveying installation base 3-1 or the fixed base 5-2, the other end extends into the guide groove of the conveying guide rail 2, the guide wheel 6-2 is mounted on the end of the guide shaft 6-1 far from the conveying installation base 3-1 and the fixed base 5-2, and the guide wheel 6-2 is matched with the guide groove in the conveying guide rail 2. The purpose is as follows: 1. the stirrup conveying member 3 and the moving trolley are hung on the conveying guide rail 2 by arranging the guide mechanism 6. 2. By arranging the guide mechanism 6, the movement of the moving trolley and the stirrup conveying member 3 can be guided. 3. Through setting up guiding mechanism 6 can reduce the friction between stirrup transport 3 and travelling car and the transport guide rail 2, thereby improves the utility model discloses an automatic conveyor's of stirrup life.
Referring to fig. 1-8, the working principle of the automatic stirrup conveying device of the present invention is as follows:
during operation, stirrup conveying mechanism 5 drives stirrup conveying member 3 and moves on carrying guide rail 2, and when stirrup conveying member 3 moved the material loading station on carrying guide rail 2 (this material loading station can be all positions except for straightway 2-1 in carrying guide rail 2), stirrup automatic feeding device carried the stirrup to stirrup conveying member 3, and then, stirrup conveying mechanism 5 drove this 3 continuation movements of stirrup conveying member that the clamping has the stirrup. When having stirrup to carry 3 to the material loading station, stirrup automatic feeding device all can carry the stirrup to corresponding stirrup and carry 3. When the stirrup conveying member 3 clamped with stirrups moves and is fully distributed on the straight line section 2-1 of the conveying guide rail 2, the straight line section 2-1 of the conveying guide rail 2 is positioned on the fixture, so that the stirrup conveying mechanism 5 stops working and waits for building of a jig frame. In the process, the additional steel bar conveying device and the longitudinal steel bar conveying device convey the additional steel bar and the longitudinal steel bar into the fixture to be bound with the stirrup located in the straight line section 2-1 to form a jig, the stirrup conveying piece 3 releases the stirrup, and then the stirrup conveying mechanism 5 drives the stirrup conveying piece 3 to move continuously. Because the conveying guide rail 2 is in a closed ring shape, after the stirrups in the stirrup conveying piece 3 reaching the straight line section 2-1 complete the construction of the jig frame, part of the stirrup conveying piece 3 completes the clamping of the stirrups, so that the continuous construction of the jig frame can be ensured, and the construction efficiency of the jig frame is improved.
The above is the preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims (8)

1. The automatic stirrup conveying device is characterized by comprising a support, a conveying guide rail arranged on the support, a plurality of stirrup conveying pieces and a stirrup conveying mechanism used for driving the stirrup conveying pieces to circularly move on the conveying guide rail, wherein the conveying guide rail is in a closed ring shape, a straight line section is arranged at the position, corresponding to a fixture, of the closed ring-shaped conveying guide rail, and the length of the straight line section is greater than or equal to that of a jig frame to be built; the plurality of stirrup conveying pieces are equidistantly arranged on the conveying guide rail, a connecting piece is arranged between every two adjacent stirrup conveying pieces, two ends of each connecting piece are respectively and rotatably connected with the two adjacent stirrup conveying pieces, and the axis of a rotating center of the rotating connection is vertical to the horizontal plane;
the conveying guide rail is oblong and comprises two circular arc sections and two straight line sections for connecting the two circular arc sections, wherein one of the two straight line sections is positioned at the fixture, and the other straight line section is positioned at the automatic stirrup feeding device; the stirrup conveying pieces are arranged on the two straight lines at equal intervals, and the distance between the stirrup conveying pieces is equal to the distance between stirrups in a jig to be built; and the stirrup conveying pieces on the two straight sections are respectively driven by the two stirrup conveying mechanisms.
2. The automatic stirrup conveying device according to claim 1, wherein the connecting member comprises a first connecting rod disposed on one of the two adjacent stirrup conveying members, a second connecting rod disposed on the other stirrup conveying member, and a first adjusting mechanism disposed between the first connecting rod and the second connecting rod for adjusting the distance between the two adjacent stirrup conveying members, wherein the first connecting rod and the second connecting rod are respectively rotatably connected to the two adjacent stirrup conveying members, and the axes of the rotation centers of the first connecting rod and the second connecting rod are perpendicular to the horizontal plane.
3. The automatic stirrup conveying device according to claim 2, wherein the first adjusting mechanism comprises external threads and an adjusting screw sleeve, wherein the external threads are arranged on the first connecting rod and the second connecting rod, and the external threads are arranged on the end parts, far away from the rotation center, of the first connecting rod and the second connecting rod; and the two ends of the adjusting threaded sleeve are respectively provided with internal threads matched with the external threads on the first connecting rod and the second connecting rod.
4. The automatic stirrup conveying device according to claim 1, wherein the stirrup conveying member comprises a conveying installation seat and a clamping member arranged at the lower end of the conveying installation seat, wherein the clamping member comprises a first clamping block, a second clamping block and an elastic element, wherein the first clamping block is provided with a first clamping surface, the second clamping block is provided with a second clamping surface at a position opposite to the first clamping surface, and the elastic force of the elastic element causes the first clamping block and the second clamping block to clamp the stirrup between the first clamping surface and the second clamping surface.
5. The automatic stirrup conveying device according to claim 4, wherein the number of the clamping members is two, and the two clamping members are symmetrically arranged at two ends of the conveying installation seat.
6. The automatic stirrup conveying device according to claim 5, wherein the stirrup conveying member further comprises a second adjusting mechanism for adjusting the distance between the two clamping members, the second adjusting mechanism comprises an adjusting plate provided with an adjusting groove, and the first clamping block or the second clamping block of the clamping members is mounted in the adjusting groove through an adjusting screw.
7. The automatic stirrup conveying device according to claim 6, wherein the stirrup conveying mechanism comprises a rack arranged at the upper end of one side of the conveying guide rail and a moving trolley arranged at the head end or the tail end of the stirrup conveying members, the moving trolley comprises a fixed seat, a trolley driving motor arranged on the fixed seat and a gear arranged on a main shaft of the trolley driving motor, the fixed seat is connected with the conveying installation seat, and the gear is meshed with the rack.
8. The automatic stirrup conveying device according to claim 7, wherein the stirrup conveying mechanism further comprises a guide mechanism arranged between the movable trolley and the stirrup conveying member and the conveying guide rail, the guide mechanism comprises guide shafts arranged on two sides of the conveying installation seat and the fixed seat and guide wheels arranged on the guide shafts, wherein one end of each guide shaft is connected with the conveying installation seat or the fixed seat, the other end of each guide shaft extends into the guide groove of the conveying guide rail, the guide wheels are arranged on the end parts, far away from the conveying installation seat and the fixed seat, of the guide shafts, and the guide wheels are matched with the guide grooves in the conveying guide rail.
CN201920724867.XU 2019-03-22 2019-05-20 Automatic stirrup conveying device Expired - Fee Related CN210365652U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201920376040 2019-03-22
CN2019203760404 2019-03-22

Publications (1)

Publication Number Publication Date
CN210365652U true CN210365652U (en) 2020-04-21

Family

ID=70260921

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920724867.XU Expired - Fee Related CN210365652U (en) 2019-03-22 2019-05-20 Automatic stirrup conveying device

Country Status (1)

Country Link
CN (1) CN210365652U (en)

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GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20221221

Address after: 230000 BCD Business District D-230, Jinxiu Chengguang, Zipeng Road South, Hefei Economic and Technological Development Zone, Anhui Province

Patentee after: Hefei Shuanghu Machinery Equipment Co.,Ltd.

Address before: 362000 Yuanmei Development Zone, Luncang Town, Nan'an City, Quanzhou City, Fujian Province

Patentee before: Quanzhou Eagle wolf kitchen and bathroom Co.,Ltd.

TR01 Transfer of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200421

CF01 Termination of patent right due to non-payment of annual fee