CN214135705U - Workpiece clamp rotating equipment for hot press - Google Patents

Workpiece clamp rotating equipment for hot press Download PDF

Info

Publication number
CN214135705U
CN214135705U CN202023046881.0U CN202023046881U CN214135705U CN 214135705 U CN214135705 U CN 214135705U CN 202023046881 U CN202023046881 U CN 202023046881U CN 214135705 U CN214135705 U CN 214135705U
Authority
CN
China
Prior art keywords
rotating
hot press
connecting rod
work piece
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202023046881.0U
Other languages
Chinese (zh)
Inventor
顾海波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanghe Precision Machinery Technology Kunshan Co ltd
Original Assignee
Yanghe Precision Machinery Technology Kunshan Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yanghe Precision Machinery Technology Kunshan Co ltd filed Critical Yanghe Precision Machinery Technology Kunshan Co ltd
Priority to CN202023046881.0U priority Critical patent/CN214135705U/en
Application granted granted Critical
Publication of CN214135705U publication Critical patent/CN214135705U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Press Drives And Press Lines (AREA)

Abstract

The utility model discloses a based on work piece holder rotates equipment for hot press, including the hot press, still including the adjusting connecting rod, the equal fixed mounting in the left and right sides of hot press has the rotation curb plate, the fixed cover in bottom of rotating the curb plate is equipped with the protective sleeve pad, the bottom swing joint that the protective sleeve filled up has the rotation connecting rod, the bottom fixedly connected with of rotation connecting rod rotates quick-witted case, one side swing joint of rotating quick-witted case has the rotation axostylus axostyle, the opposite side welding of rotation axostylus axostyle has the anchor clamps regulating plate, the bottom fixed mounting of anchor clamps regulating plate inner chamber has reset spring, reset spring's top fixedly connected with press lever. In the above scheme, when hot pressing, will make the work piece take place the skew, and during the mechanical work operation, its self takes place vibrations and also can lead to the work piece to take place the skew to lead to work piece processing quality poor, and inefficiency, utilize work piece holder mechanism this moment, can be before work piece processing, stably press from both sides tightly the work piece, prevent to remove, improve stability.

Description

Workpiece clamp rotating equipment for hot press
Technical Field
The utility model relates to a hot press equipment technical field, more specifically say, the utility model relates to a based on work piece holder rotating equipment for hot press.
Background
The hot press is a device for hot pressing a workpiece, and is divided into a constant-temperature hot press, a pulse hot press, a double-station hot press, a double-pressure-head pulse hot press, a table hot press and the like, which are mostly used for processing workpieces of devices such as mobile phones, computers, printers and the like, at present, when the hot press works, the workpiece is placed on a processing table for heating and hot pressing, when the workpiece is processed, because the shape of the workpiece is different and the placing stability is different, when the workpiece is irregular, the workpiece can be deviated during hot pressing after being placed on the processing table, and when the machine works, the workpiece can be deviated due to the vibration of the hot press, so that the processing quality of the workpiece is poor, the efficiency is low, in addition, the existing hot press cannot process the workpiece from multiple sides, when the workpiece is processed, one side of the workpiece needs to be processed firstly, and then the worker performs face turning processing on the workpiece, the processing not only wastes the working efficiency of workers, but also consumes time and labor and affects the production efficiency of workpieces.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a based on work piece holder rotating equipment for hot press to solve when hot pressing, will make the work piece take place the skew, and when mechanical work operation, its self takes place vibrations and also can lead to the work piece to take place the skew, thereby lead to work piece processing quality poor, and the problem of inefficiency.
In order to solve the technical problem, the utility model provides a following technical scheme: a workpiece clamp rotating device for a hot press, which comprises a hot press and an adjusting connecting rod, the left side and the right side of the hot press are both fixedly provided with a rotating side plate, the bottom of the rotating side plate is fixedly sleeved with a protective sleeve gasket, the bottom of the protective sleeve pad is movably connected with a rotating connecting rod, the bottom of the rotating connecting rod is fixedly connected with a rotating case, one side of the rotating case is movably connected with a rotating shaft lever, the other side of the rotating shaft lever is welded with a clamp adjusting plate, the bottom of the inner cavity of the clamp adjusting plate is fixedly provided with a return spring, the top of the return spring is fixedly connected with a pressing rod, the top of the clamp adjusting plate is provided with an adjusting groove, the other side of the clamp adjusting plate is fixedly communicated with a communicating supporting shaft, a movable plate is fixedly communicated with the other side of the communicating supporting shaft, and clamping arms are movably sleeved on the upper surface and the lower surface of the outer surface of the movable plate;
the utility model discloses a quick-witted case, including rotation machine case inner chamber, rotation machine case inner chamber's bottom fixed mounting has the sensor, the bottom fixed mounting who rotates machine case inner chamber one side has the fixing base, the top fixed mounting of fixing base has small-size rotation motor, one side swing joint of small-size rotation motor has first rotation tooth, the middle part welding that rotates machine case inner chamber one side has the fixed pole post, the opposite side swing joint of fixed pole post has the transfer line, the opposite side swing joint of transfer line has the second to rotate the tooth, the rotation groove has been seted up at the middle part of rotating machine case one side.
The top fixed mounting who rotates the curb plate inner chamber has the joint frame, the middle part joint of joint frame has the installation fixing base, the activity carousel has been cup jointed in the bottom activity of installation fixing base, the activity groove has been seted up to the bottom of rotating the curb plate.
The movable plate comprises a movable plate, a connecting rod and a rotating column, wherein a communicating groove is formed in one side of the movable plate, the middle of an inner cavity of the movable plate is movably connected with the rotating column, a first transmission shaft is movably sleeved on the outer surface of the rotating column, the upper surface and the lower surface of the first transmission shaft are both movably connected with the connecting rod, and the other side of the connecting rod is movably connected with a second transmission shaft.
The other side of the adjusting connecting rod penetrates through the communicating groove to be fixedly connected with one side of the rotating column, and the top of the second transmission shaft is movably connected with one end of the clamping arm.
The outer surface of the fixing seat is fixedly sleeved with a damping pad, the damping pad is made of rubber, the top of the first rotating tooth is movably sleeved with the bottom of the second rotating tooth, and one side of the rotating shaft rod penetrates through the rotating groove to be fixedly connected with the other side of the second rotating tooth.
The top of the rotating connecting rod penetrates through a movable groove to be fixedly connected with the bottom of the movable turntable, and the horizontal width of the movable groove is matched with that of the rotating connecting rod.
The input end of the installation fixing seat and the input end of the sensor are both electrically connected with an external power supply, and the output end of the sensor is electrically connected with the input end of the small-sized rotating motor.
The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:
in the scheme, when the workpiece is subjected to hot pressing, the workpiece can be deviated, and when the machine works, the workpiece can be deviated due to vibration of the machine, so that the workpiece is poor in machining quality and low in efficiency, and at the moment, the workpiece can be stably clamped by using the workpiece clamp mechanism before the workpiece is machined, so that the workpiece is prevented from moving, and the stability is improved; in the above scheme, current hot press can not carry out multiaspect processing to the work piece, and adds man-hour, needs to accomplish the one side processing of work piece earlier, then the staff carries out turn-over processing to the work piece again, and the work efficiency of staff is not only wasted in processing like this, and the while is still consuming time and power, influences work piece production efficiency, utilizes slewing mechanism this moment, can accomplish the one side at work piece processing after, rotates the turn-over to the work piece automatically, improves machining efficiency.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is an enlarged schematic view of a portion a of fig. 1 according to the present invention;
FIG. 3 is a schematic view of the inner cavity structure of the rotating side plate of the present invention;
fig. 4 is a schematic view of the structure of the inner cavity of the movable plate of the present invention;
fig. 5 is a schematic view of the structure of the inner cavity of the rotating case of the present invention.
[ reference numerals ]
1. A hot press; 2. rotating the side plate; 3. a protective sleeve pad; 4. rotating the connecting rod; 5. rotating the case; 6. Rotating the shaft lever; 7. a clamp adjusting plate; 8. a return spring; 9. an adjustment groove; 10. a pressing lever; 11. adjusting the connecting rod; 12. the supporting shaft is communicated; 13. a movable plate; 14. clamping arms; 21. a clamping frame; 22. mounting a fixed seat; 23. a movable turntable; 24. a movable groove; 51. a sensor; 52. a fixed seat; 53. a small-sized rotating motor; 54. a first rotating tooth; 55. a second rotating tooth; 56. a transmission rod; 57. fixing the pole; 58. a rotating groove; 131. a communicating groove; 132. rotating the column; 133. a first drive shaft; 134. a connecting rod; 135. a second drive shaft.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The embodiment of the utility model provides a workpiece fixture rotating device based on a hot press as shown in the attached drawings 1 to 5, which comprises a hot press 1 and an adjusting connecting rod 11, wherein the left side and the right side of the hot press 1 are fixedly provided with rotating side plates 2, the bottom of the rotating side plates 2 is fixedly sleeved with a protective sleeve pad 3, the bottom of the protective sleeve pad 3 is movably connected with a rotating connecting rod 4, the bottom of the rotating connecting rod 4 is fixedly connected with a rotating case 5, one side of the rotating case 5 is movably connected with a rotating shaft rod 6, the other side of the rotating shaft rod 6 is welded with a fixture adjusting plate 7, the bottom of the inner cavity of the fixture adjusting plate 7 is fixedly provided with a reset spring 8, the top of the reset spring 8 is fixedly connected with a pressing rod 10, the top of the fixture adjusting plate 7 is provided with an adjusting groove 9, the other side of the fixture adjusting plate 7 is fixedly communicated with a communicating supporting shaft 12, a movable plate 13 is fixedly communicated with the other side of the communication support shaft 12, and clamping arms 14 are movably sleeved on the upper surface and the lower surface of the outer surface of the movable plate 13;
the sensor 51 is fixedly arranged at the bottom of the inner cavity of the rotating case 5, the fixing seat 52 is fixedly arranged at the bottom of one side of the inner cavity of the rotating case 5, the small rotating motor 53 is fixedly arranged at the top of the fixing seat 52, one side of the small rotating motor 53 is movably connected with the first rotating teeth 54, the fixing pole 57 is welded at the middle part of one side of the inner cavity of the rotating case 5, the transmission pole 56 is movably connected at the other side of the fixing pole 57, the second rotating teeth 55 are movably connected at the other side of the transmission pole 56, the rotating groove 58 is arranged at the middle part of one side of the rotating case 5, the clamping frame 21 is fixedly arranged at the top of the inner cavity of the rotating side plate 2, the mounting fixing seat 22 is clamped at the middle part of the clamping frame 21, the movable turntable 23 is movably sleeved at the bottom of the mounting fixing seat 22, and the movable groove 24 is arranged at the bottom of the rotating side plate 2, a communicating groove 131 is formed in one side of the movable plate 13, a rotating column 132 is movably connected to the middle of an inner cavity of the movable plate 13, a first transmission shaft 133 is movably sleeved on the outer surface of the rotating column 132, a connecting rod 134 is movably connected to both the upper and lower surfaces of the first transmission shaft 133, a second transmission shaft 135 is movably connected to the other side of the connecting rod 134, the other side of the adjusting connecting rod 11 passes through the communicating groove 131 and is fixedly connected to one side of the rotating column 132, the top of the second transmission shaft 135 is movably connected to one end of the clamping arm 14, a shock pad is fixedly sleeved on the outer surface of the fixed seat 52 and is made of rubber, the top of the first rotating tooth 54 is movably sleeved with the bottom of the second rotating tooth 55, one side of the rotating shaft lever 6 passes through the rotating groove 58 and is fixedly connected to the other side of the second rotating tooth 55, and the top of the rotating connecting rod 4 passes through the movable groove 24 and is fixedly connected to the bottom of the movable turntable 23, the horizontal width that movable groove 24 was seted up and the horizontal width looks adaptation of rotation connecting rod 4, the input of installation fixing base 22 and sensor 51 all is connected with external power source electric connection, the output of sensor 51 and the input electric connection of small-size rotating electrical machines 53.
As shown in fig. 2 to 4, a communicating groove 131 is formed in one side of the movable plate 13, a rotating column 132 is movably connected to the middle of an inner cavity of the movable plate 13, a first transmission shaft 133 is movably sleeved on the outer surface of the rotating column 132, a connecting rod 134 is movably connected to both the upper surface and the lower surface of the first transmission shaft 133, and a second transmission shaft 135 is movably connected to the other side of the connecting rod 134;
specifically, when a workpiece is machined, a worker firstly places the workpiece in the clamping arm 14, the pressing rod 10 can be pressed according to the size of the workpiece, then the pressing rod 10 is used for pressing the reset spring 8, the reset spring 8 is used for driving the adjusting connecting rod 11 to move up and down, when the adjusting connecting rod 11 is pressed down, the rotating column 132 and the first transmission shaft 133 are driven to rotate, the connecting rod 134 and the second transmission shaft 135 are driven to rotate while rotating, so that the second transmission shaft 135 is used for driving the clamping arm 14 to horizontally rotate, the clamping opening of the clamping arm 14 is enlarged, then the workpiece is placed in the clamping arm 14, then the pressing rod 10 is loosened, the device returns to the original position, the clamping arm 14 is used for clamping and fixing the workpiece, and therefore when the workpiece is machined, the stability and the quality of the workpiece are improved.
As shown in fig. 5, a sensor 51 is fixedly mounted at the bottom of an inner cavity of the rotating case 5, a fixed seat 52 is fixedly mounted at the bottom of one side of the inner cavity of the rotating case 5, a small rotating motor 53 is fixedly mounted at the top of the fixed seat 52, a first rotating tooth 54 is movably connected to one side of the small rotating motor 53, a fixed rod 57 is welded at the middle of one side of the inner cavity of the rotating case 5, a transmission rod 56 is movably connected to the other side of the fixed rod 57, a second rotating tooth 55 is movably connected to the other side of the transmission rod 56, and a rotating groove 58 is formed at the middle of one side of the rotating case 5;
specifically, after one side processing of work piece was accomplished in arm lock 14, recycle external power control sensor 51 and start, then recycle the small-size rotation motor 53 of sensor 51 sensing control and start, then the motor shaft through small-size rotation motor 53 drives first rotation tooth 54 and rotates, then conduction second rotation tooth 55 rotates with rotation axostylus axostyle 6 to utilize rotation axostylus axostyle 6 to drive anchor clamps regulating plate 7, intercommunication back shaft 12 and arm lock 14 etc. rotate, finally carry out turn-over processing to the work piece, improve staff's work efficiency and production efficiency.
Wherein the small-sized rotating motor 53 is of the brand FREUD and of the model PF, and the sensor 51 is of the brand deluxe electric, and of the model KG.
The working process of the utility model is as follows:
when a workpiece is machined, a worker firstly places the workpiece in the clamping arm 14, can press the pressing rod 10 according to the size of the workpiece, then presses the reset spring 8 by using the pressing rod 10, vertically and movably drives the adjusting connecting rod 11 to move up and down by using the reset spring 8, when the adjusting connecting rod 11 is pressed down, the rotating column 132 and the first transmission shaft 133 are driven to rotate, the connecting rod 134 and the second transmission shaft 135 are driven to rotate while rotating, so that the clamping arm 14 is driven to horizontally rotate by using the second transmission shaft 135, the clamping opening of the clamping arm 14 is enlarged, then the workpiece is placed in the clamping arm 14, then the pressing rod 10 is released, the device returns to the original position, so that the workpiece is clamped and fixed by using the clamping arm 14, the stability and the quality of the workpiece are improved when the workpiece is machined, when one surface of the workpiece in the clamping arm 14 is machined, the sensor 51 is controlled to be started by using an external power supply, then utilize sensor 51 sensing control small-size rotation motor 53 to start again, then drive first rotation tooth 54 through the motor shaft of small-size rotation motor 53 and rotate, then conduct second rotation tooth 55 and rotation axostylus axostyle 6 and rotate to utilize rotation axostylus axostyle 6 to drive rotation such as anchor clamps regulating plate 7, intercommunication back shaft 12 and arm lock 14, finally carry out turn-over processing to the work piece, improve staff's work efficiency and production efficiency.
Above-mentioned scheme utilizes mutually supporting of rotating curb plate 2, anchor clamps regulating plate 7 and 13 internal arrangement of fly leaf, can effectually adjust arm lock 14 to press from both sides tight work piece, increase its stability, utilize mutually supporting of rotating 5 internal arrangement of quick-witted case in addition, can effectually carry out turn-over processing to the work piece, thereby improve staff's work efficiency and production efficiency.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The workpiece clamp rotating equipment based on the hot press comprises a hot press (1) and is characterized by further comprising an adjusting connecting rod (11), rotating side plates (2) are fixedly mounted on the left side and the right side of the hot press (1), a protective sleeve pad (3) is fixedly sleeved on the bottom of each rotating side plate (2), a rotating connecting rod (4) is movably connected to the bottom of each protective sleeve pad (3), a rotating case (5) is fixedly connected to the bottom of each rotating connecting rod (4), a rotating shaft rod (6) is movably connected to one side of each rotating case (5), a clamp adjusting plate (7) is welded to the other side of each rotating shaft rod (6), a reset spring (8) is fixedly mounted at the bottom of an inner cavity of each clamp adjusting plate (7), a pressing rod (10) is fixedly connected to the top of each reset spring (8), and an adjusting groove (9) is formed in the top of each clamp adjusting plate (7), a communicating support shaft (12) is fixedly communicated with the other side of the clamp adjusting plate (7), a movable plate (13) is fixedly communicated with the other side of the communicating support shaft (12), and clamping arms (14) are movably sleeved on the upper surface and the lower surface of the outer surface of the movable plate (13);
the utility model discloses a quick-witted case, including rotate quick-witted case (5) inner chamber, rotate the bottom fixed mounting of quick-witted case (5) inner chamber and have sensor (51), the bottom fixed mounting who rotates quick-witted case (5) inner chamber one side has fixing base (52), the top fixed mounting of fixing base (52) has small-size rotation motor (53), one side swing joint of small-size rotation motor (53) has first rotation tooth (54), the middle part welding of rotating quick-witted case (5) inner chamber one side has fixed rod post (57), the opposite side swing joint of fixed rod post (57) has transfer line (56), the opposite side swing joint of transfer line (56) has the second to rotate tooth (55), rotation groove (58) have been seted up at the.
2. The workpiece clamp rotating device for the hot press machine is characterized in that a clamping frame (21) is fixedly mounted at the top of an inner cavity of the rotating side plate (2), an installation fixing seat (22) is clamped in the middle of the clamping frame (21), a movable rotating disc (23) is movably sleeved at the bottom of the installation fixing seat (22), and a movable groove (24) is formed in the bottom of the rotating side plate (2).
3. The workpiece clamp rotating device for the hot press as claimed in claim 1, wherein a communicating groove (131) is formed in one side of the movable plate (13), a rotating column (132) is movably connected to the middle of an inner cavity of the movable plate (13), a first transmission shaft (133) is movably sleeved on the outer surface of the rotating column (132), the upper surface and the lower surface of the first transmission shaft (133) are both movably connected with a connecting rod (134), and the other side of the connecting rod (134) is movably connected with a second transmission shaft (135).
4. The work holder rotating apparatus for hot press according to claim 3, wherein the other side of the adjusting link (11) passes through the communicating groove (131) and is fixedly connected to one side of the rotating post (132), and the top of the second transmission shaft (135) is movably connected to one end of the clamping arm (14).
5. The hot press based workpiece clamp rotating device as claimed in claim 1, wherein a damping pad is fixedly sleeved on the outer surface of the fixed seat (52), the damping pad is made of rubber, the top of the first rotating tooth (54) is movably sleeved with the bottom of the second rotating tooth (55), and one side of the rotating shaft rod (6) passes through the rotating groove (58) and is fixedly connected with the other side of the second rotating tooth (55).
6. The rotating device of the work holder for the hot press according to claim 2, wherein the top of the rotating connecting rod (4) passes through the movable slot (24) and is fixedly connected with the bottom of the movable turntable (23), and the horizontal width of the movable slot (24) is matched with the horizontal width of the rotating connecting rod (4).
7. The rotating device of a workpiece clamp for a hot press according to claim 2 is characterized in that the input ends of the mounting and fixing seat (22) and the sensor (51) are electrically connected with an external power supply, and the output end of the sensor (51) is electrically connected with the input end of the small rotating motor (53).
CN202023046881.0U 2020-12-16 2020-12-16 Workpiece clamp rotating equipment for hot press Expired - Fee Related CN214135705U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202023046881.0U CN214135705U (en) 2020-12-16 2020-12-16 Workpiece clamp rotating equipment for hot press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202023046881.0U CN214135705U (en) 2020-12-16 2020-12-16 Workpiece clamp rotating equipment for hot press

Publications (1)

Publication Number Publication Date
CN214135705U true CN214135705U (en) 2021-09-07

Family

ID=77587819

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202023046881.0U Expired - Fee Related CN214135705U (en) 2020-12-16 2020-12-16 Workpiece clamp rotating equipment for hot press

Country Status (1)

Country Link
CN (1) CN214135705U (en)

Similar Documents

Publication Publication Date Title
CN203788106U (en) Motor assembling device
CN103887931A (en) Motor numerical control assembling device and method
CN210587911U (en) Gear ring welding displacement device
CN104588956A (en) Compressing and positioning device for robot welding
CN214135705U (en) Workpiece clamp rotating equipment for hot press
CN210024169U (en) Clamp for circumferential laser welding
CN213616172U (en) Novel fixing equipment is used in machine parts production
CN213105292U (en) Positioning fixture for welding chair back plate
CN211102343U (en) Multi-station semi-automatic high-precision welding machine
CN108971665A (en) A kind of Gear Processing positioning device
CN214079889U (en) Automatic annular welding machine
CN211465771U (en) Coupling part grinding device
CN209998810U (en) Workpiece fixing device capable of being rotationally adjusted
CN215318176U (en) Anchor clamps convenient to angle modulation
CN214685233U (en) Workpiece limiting equipment for intelligent cutting machine
CN216027243U (en) Stable form tower section of thick bamboo platform board revolving platform of bending
CN217413201U (en) Clamping device for planer type milling machine
CN218169193U (en) Vibration dolly production facility convenient to adjust
CN220462999U (en) Clamping device of double-end machine tool
CN215146055U (en) Portal welding set with welding robot adaptation
CN218800174U (en) Electric vehicle tail assembly welding device
CN217513848U (en) Turnover workbench for assembling diesel engine cylinder
CN218311792U (en) Positioner for welding
CN220028717U (en) Special machine for processing camshaft bearing cover
CN215145719U (en) Axle shell laser welding device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20210907