CN117416556A - Synchronous net winding mechanism for packer - Google Patents
Synchronous net winding mechanism for packer Download PDFInfo
- Publication number
- CN117416556A CN117416556A CN202311371495.4A CN202311371495A CN117416556A CN 117416556 A CN117416556 A CN 117416556A CN 202311371495 A CN202311371495 A CN 202311371495A CN 117416556 A CN117416556 A CN 117416556A
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- net
- winding
- pushing
- assembly
- twining
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- 238000004804 winding Methods 0.000 title claims abstract description 121
- 230000007246 mechanism Effects 0.000 title claims abstract description 27
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 25
- 230000008054 signal transmission Effects 0.000 claims abstract description 14
- 230000011664 signaling Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 24
- 238000004891 communication Methods 0.000 claims description 13
- 230000000087 stabilizing effect Effects 0.000 claims description 9
- 230000009347 mechanical transmission Effects 0.000 claims description 3
- 238000012856 packing Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000001788 irregular Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 9
- 238000007599 discharging Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B13/00—Bundling articles
- B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B25/00—Packaging other articles presenting special problems
- B65B25/02—Packaging agricultural or horticultural products
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Basic Packing Technique (AREA)
Abstract
The invention belongs to the technical field of packing machines, and discloses a synchronous net winding mechanism for a packing machine, which comprises the following components: the pushing assembly is used for pushing the bales to the position to be wound with the net; the signal transmission component is used for collecting the speed information of the pushing component and transmitting the speed information to the control component; the control component is used for sending out a control signal according to the speed information; the winding assembly is used for receiving the control signal and controlling the winding speed based on the control signal; the net breaking assembly is used for receiving the control signal and cutting off the net rope after net winding is finished. The signal transmission component acquires the propelling speed of the pushing oil cylinder, and then generates a control signal to be transmitted to the net winding motor and the net breaking oil cylinder, so that the propelling speed of the pushing oil cylinder is matched with the rotating speed of the net winding motor, the baling quality of the bales is ensured to be stable, and meanwhile, after net winding is finished, the net breaking oil cylinder pushes the net breaking cutter to cut off net ropes of the bales, so that the whole baling process is realized, and the problem that the shape of the bales is irregular or even not wrapping due to too few net winding turns is effectively solved.
Description
Technical Field
The invention belongs to the technical field of packing machines, and particularly relates to a synchronous net winding mechanism for a packing machine.
Background
The working principle of the automatic net winding device of the existing packer is as follows: the gear pump is used as a hydraulic power source, the electric control system signal is used as control, the hydraulic valve bank and the net winding gear ring are used as executing elements, and net winding action is realized while the baling press pushing cylinder pushes out the bale. Because the automatic net winding system and the host packaging system are two independent hydraulic systems, the relative working speed has no certain matching, when the bale is too light and the pushing speed of the pushing cylinder is too high, the net winding number is too small, so that the bale is irregular or even not packaged, when the bale is too heavy and the pushing speed of the pushing cylinder is too slow, the net winding number is too large, so that excessive waste of net ropes is caused, and the packaging cost is increased; after the front end of the bale is wrapped in the existing net wrapping mode, three cylinders need to be stopped for pushing in the process of wrapping the tail and breaking the net, pushing is carried out after the tail wrapping and breaking the net are completed, the package unloading action is completed, the stopping position is controlled by a sensor, the debugging and using requirements are very high, and the problem that incomplete net wrapping of the tail can be caused by improper adjustment is solved.
After the front end of the bale is wrapped in the existing net wrapping mode, three cylinders need to be stopped for pushing in the process of wrapping the tail and breaking the net rope, pushing is carried out after the tail wrapping and breaking the net are completed, and the unloading operation is completed, so that two structural modes exist at present: as shown in fig. 1, the number of the holes is controlled by using the stroke sensor and the counting sensor on the stroke rod, so that the relative position requirements of the sensor and the stroke rod are relatively high, and the control pause position is not accurate enough and can only be an integral multiple of the hole distance. As shown in figure 2, another way is to control the counting of the number of teeth by using a gear structure below the package outlet, the structure has high requirement on the adjustment of the counting sensor, the counting gear is driven to rotate by the driving force of the bales, the gear is easy to be blocked by the bales, mechanical faults and sensor faults are caused, and the structure is unstable.
Disclosure of Invention
In order to solve at least one problem in the background art, the invention provides a synchronous net winding mechanism for a packer.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a synchronous net twining mechanism for a baler, comprising:
the pushing assembly is used for pushing the bales to the position to be wound with the net;
the signal transmission component is used for collecting the speed information of the pushing component and transmitting the speed information to the control component;
the control component is used for sending out a control signal according to the speed information;
the winding assembly is used for receiving the control signal and controlling the winding speed based on the control signal;
the net breaking assembly is used for receiving the control signal and cutting off the net rope after net winding is finished.
Preferably, the synchronous net winding mechanism further comprises a shell, and the pushing component, the signal transmission component, the control component, the net winding component and the net breaking component are all arranged on the shell;
the synchronous net winding mechanism adopts one or more of gear transmission, belt wheel transmission, connecting rod transmission, chain transmission, cam transmission and hydraulic transmission for mechanical transmission.
Preferably, the pushing assembly comprises a pushing oil cylinder and a driving rack;
the pushing oil cylinder is arranged on one surface of the shell and is used for pushing the bales in the shell to the net winding assembly;
the driving rack is slidably arranged on the surface of the cylinder body of the pushing cylinder, one end of the driving rack is fixedly connected with the telescopic shaft of the sliding cylinder, and the driving rack is axially arranged along the pushing cylinder.
Preferably, the signal transmission assembly includes an encoder assembly mounted within the housing;
one end of the encoder assembly is rotatably provided with a driven gear which is meshed with the driving rack.
Preferably, the control assembly comprises a controller, a valve group and a plurality of communication wires;
the controller is arranged on the surface of the shell, is in signal connection with the encoder assembly through a communication line and is used for generating a control signal according to the speed information of the pushing component;
the controller is also connected with the valve group through a communication line and sends out a control signal through the valve group.
Preferably, the net winding assembly comprises a net winding motor, a driving gear, a wrap pipe body, a net winding gear ring and a net winding roller;
the net winding motor is arranged on the surface of the shell and is connected with the controller through a communication line;
the driving gear is arranged on the output shaft of the net winding motor;
the driving gear is meshed with the mesh winding gear ring;
the bale discharging pipe body passes through the axle center of the net winding gear ring to be connected with the shell, and the bale is packaged at the opening of the bale discharging pipe body;
the net winding roller is rotatably arranged on the end face of the net winding gear ring.
Preferably, the inner side of the net winding gear ring is also provided with a stabilizing plate which is fixedly connected with the ladle outlet pipe body;
the surface of the stabilizing plate is rotatably provided with a plurality of positioning wheels which are propped against the inner surface of the net winding gear ring.
Preferably, the net breaking assembly comprises a net breaking oil cylinder and a net breaking cutter, wherein the net breaking cutter is arranged at one end of a telescopic shaft of the net breaking oil cylinder and is used for cutting off net ropes after net winding ends.
Preferably, the screen breaking cylinder is arranged on one surface of the shell.
Preferably, the net winding motor is used for receiving a control signal of the valve group and controlling the rotating speed of the net winding motor;
the net breaking oil cylinder is used for receiving control signals of the valve group and driving the net breaking cutter to cut off the net rope after net winding of the net winding motor is finished.
The invention has the beneficial effects that:
1. the signal transmission component acquires the propelling speed of the pushing oil cylinder, and then generates a control signal to be transmitted to the net winding motor and the net breaking oil cylinder, so that the propelling speed of the pushing oil cylinder is matched with the rotating speed of the net winding motor, the baling quality is ensured to be stable, and meanwhile, after net winding is finished, the net breaking oil cylinder pushes the net breaking cutter to cut off the net rope of the bale, so that the whole baling process is realized, the problems that the shape of the bale is irregular and even not in a bale state, the net winding number is excessive when the bale is too heavy and the pushing speed of the pushing oil cylinder is too slow, the net rope is excessively wasted, and the baling cost is increased are effectively solved;
2. compared with the traditional packer, the invention has the advantages that the stroke sensor, the counting sensor, the stroke rod of the pushing oil cylinder and the net winding counting mechanism can be eliminated, the structure is greatly simplified, and the system stability and the convenience of operation, maintenance and repair are improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing a structure of a conventional net winding using a counting sensor;
FIG. 2 is a schematic view showing a prior art net winding structure using gear counting;
FIG. 3 shows a schematic diagram of a synchronous net twining mechanism for a baler of the present invention;
fig. 4 shows a schematic structural diagram of the screen-breaking cylinder and the screen-breaking cutter of the present invention.
In the figure: 1. a housing; 2. pushing oil cylinder; 3. a driving rack; 4. a driven gear; 5. an encoder assembly; 6. a controller; 7. a communication line; 8. a valve group; 9. a net winding motor; 10. a drive gear; 11. a broken net oil cylinder; 12. discharging the ladle pipe body; 13. a stabilizing plate; 14. a positioning wheel; 15. winding a net gear ring; 16. a net winding roller; 17. a net breaking cutter.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
A synchronous net winding mechanism for a packer comprises a pushing component, a signal transmission component, a control component, a net winding component and a net breaking component. The pushing assembly is used for pushing the bales to the position to be wound with the net; the signal transmission component is used for acquiring the speed information of the pushing component and transmitting the speed information to the control component; the control component is used for sending out a control signal according to the speed information; the net winding component is used for receiving the control signal and controlling the net winding speed based on the control signal; the net breaking component is used for receiving the control signal and cutting off the net rope after net winding is finished. In addition, the synchronous net winding mechanism adopts one or more of gear transmission, belt wheel transmission, connecting rod transmission, chain transmission, cam transmission and hydraulic transmission for mechanical transmission.
It should be noted that, the signal transmission component in the synchronous net winding mechanism of the packer can collect the speed of the pushing component, and transmit the speed signal to the net winding component and the net breaking component, in the packing process, the working parameters of the net winding component and the net breaking component can be adjusted according to the speed of the pushing component, so that the bale packing is stable, the adaptation of the net winding speed and the pushing speed of the pushing is realized, and compared with the traditional structure, the stroke sensor, the counting sensor, the pushing oil cylinder stroke rod and the net winding counting mechanism can be canceled, the structure is greatly simplified, and the system stability and the convenience of operation, maintenance are improved. In addition, the invention mainly adopts gear transmission and hydraulic transmission when the transmission structure is described, and can be replaced by other transmission modes as required in practical application, so long as the design target can be met.
The components of the synchronous net twining mechanism for the baler will be described in detail below with reference to fig. 3 and 4.
As shown in fig. 3, the supporting structure of the synchronous net winding mechanism is a shell 1, and the pushing component, the signal transmission component, the control component, the net winding component and the net breaking component are all installed on the shell 1. The pushing assembly comprises a pushing oil cylinder 2 and a driving rack 3, wherein the pushing oil cylinder 2 is arranged on one surface (the left side surface in fig. 3) of the shell 1, and can push the bales in the shell 1 to the position of the net winding assembly during operation; the driving rack 3 is slidably arranged on the surface of the pushing cylinder 2, one end of the driving rack is fixedly connected with a telescopic shaft of the sliding cylinder 2, and the driving rack 3 is axially arranged along the pushing cylinder 2 and can move along with the pushing cylinder 2.
Further, as shown in fig. 3, the signal transmission assembly includes an encoder assembly 5 mounted within the housing 1; one end of the encoder assembly 5 is rotatably provided with a driven gear 4, and the driven gear 4 is meshed with the driving rack 3. When the driving rack 3 moves axially along the pushing cylinder 2, the driven gear 4 rotates along with the driving rack through the transmission of the gear, and the encoder assembly 5 can collect the rotating speed of the driven gear 4, so that the moving speed and the moving position of the driven gear 4 are obtained.
Further, as shown in fig. 3, the control assembly comprises a controller 6, a valve group 8 and a plurality of communication wires 7; the controller 6 is arranged on the surface of the shell 1, is in signal connection with the encoder assembly 5 through a communication line 7 and is used for generating a control signal according to the speed information of the pushing component; the controller 6 is also connected with a valve group 8 through a communication line 7 in a signal manner, and sends out a control signal through the valve group 8.
It should be noted that, the encoder assembly 5 can change the rotation speed of the driven gear 4 at any time along with the change of the pushing speed of the pushing cylinder 2; the signal density of the output of the encoder assembly 5 is changed when the rotation speed collected by the encoder assembly 5 is changed, the controller 6 calculates the speed change of the pushing cylinder 2 by reading the signal density change of the encoder assembly 5, the controller 6 outputs different currents to the electric proportional throttle valve of the valve group 8 according to the speed change, the electric proportional throttle valve changes the size of the throttle opening according to the different currents, the change of the flow is realized, the rotation speed change of the winding gear ring 15 is realized, and finally the matching of the pushing speed of the pushing cylinder 2 and the winding speed is realized.
Further, as shown in fig. 3, the net winding assembly includes a net winding motor 9, a driving gear 10, a net discharging pipe body 12, a net winding gear ring 15 and a net winding roller 16; wherein the net winding motor 9 is arranged on the surface of the shell 1 and is connected with the controller 6 through a communication wire 7; the driving gear 10 is arranged on the output shaft of the net winding motor 9; the driving gear 10 is meshed with the net winding gear ring 15; the bale discharging pipe body 12 passes through the axle center of the net winding gear ring 15 to be connected with the shell 1, and the bales are packed at the opening of the bale discharging pipe body 12; the net winding roller 16 is rotatably installed at an end surface of the net winding gear ring 15.
The net winding motor 9 drives the net winding gear ring 15 to rotate through gear transmission, the net winding roller 16 rotates by taking the center of the net winding gear ring 15 as the center of a circle, net ropes are wound on the net winding roller 16, and when the net winding roller 16 rotates, the net ropes are wound out of a bale at the opening of the baling tube 12 to rotate, and bales are baled. In the process, the rotating speed of the net winding motor 9 is adjusted after receiving the control signal, so that the speed of the pushing oil cylinder 2 can be matched with the rotating speed of the net winding motor 9, and the bale packaging stability can be ensured.
It should be further noted that, the net winding motor 9 is a hydraulic motor, the valve group 8 drives the net winding motor 9 to rotate to drive the net winding gear ring 15, and the change of the flow of the valve group 8 realizes the change of the rotation speed of the net winding motor 9. In addition, in the invention, the valve group 8 can be replaced by an electric signal transmitting device, and the same net winding motor 9 and the net breaking cylinder 11 can be driven by electricity.
Further, as shown in fig. 3, a stabilizing plate 13 is further installed on the inner side of the mesh winding gear ring 15, and the stabilizing plate 13 is fixedly connected with the wrapping pipe body 12. The surface of the stabilizing plate 13 is rotatably provided with a plurality of positioning wheels 14, and the positioning wheels 14 are propped against the inner surface of the net winding gear ring 15.
It should be noted that, the positioning wheel 14 is provided with a plurality of, installs in the edge of stabilizer 13, and the positioning wheel 14 can guarantee after offseting with the net winding ring gear 15 that net winding ring gear 15 rotates more stably, improves bale packing quality.
Further, as shown in fig. 4, the wire breaking assembly includes a wire breaking cylinder 11 and a wire breaking cutter 17. The net breaking cylinder 11 is arranged on one surface of the shell 1, and the net breaking cutter 17 is arranged at one end of a telescopic shaft of the net breaking cylinder 11 and is used for cutting off net ropes after net winding ends.
The winding motor 9 is used for receiving a control signal of the valve group 8 and controlling the rotation speed of the winding motor 9; the net breaking cylinder 11 is used for receiving control signals of the valve group 8, and drives the net breaking cutter 17 to cut off net ropes after net winding ends of the net winding motor 9.
The principle of the invention is as follows:
before the pushing cylinder 2 does not start working, the net breaking component and the net winding component complete the net breaking action of the last bale and keep pressing net ropes, when the pushing cylinder 2 starts working, the controller 6 sends a control signal, the net winding motor 9 rotates and drives the net winding gear ring 15 to rotate after the valve group 8 obtains the control signal, thereby the net winding roller 16 rotates around the bale outlet opening of the bale outlet pipe body 12, the bale is wrapped by the net ropes, when the pushing cylinder 2 pushes to a target position, the bale wrapping bale is finished, the net breaking component cuts off the net ropes, and the next working cycle is waited.
Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A synchronous net winding mechanism for a baler, comprising:
the pushing assembly is used for pushing the bales to the position to be wound with the net;
the signal transmission component is used for collecting the speed information of the pushing component and transmitting the speed information to the control component;
the control component is used for sending out control signals according to the speed information;
the winding assembly is used for receiving the control signal and controlling the winding speed based on the control signal;
the net breaking assembly is used for receiving the control signal and cutting off the net rope after net winding is finished.
2. A synchronous net twining mechanism for a packer according to claim 1, further comprising a housing (1), wherein the pushing assembly, the signal transmission assembly, the control assembly, the net twining assembly and the net breaking assembly are all mounted on the housing (1);
the synchronous net winding mechanism adopts one or more of gear transmission, belt wheel transmission, connecting rod transmission, chain transmission, cam transmission and hydraulic transmission for mechanical transmission.
3. A synchronous net twining mechanism for baler according to claim 2, characterized in that the pushing assembly comprises a pushing cylinder (2) and a driving rack (3);
the pushing oil cylinder (2) is arranged on one surface of the shell (1) and is used for pushing the bales in the shell (1) to the net winding assembly;
the driving rack (3) is slidably mounted on the surface of the cylinder body of the pushing oil cylinder (2), one end of the driving rack is fixedly connected with the telescopic shaft of the sliding oil cylinder (2), and the driving rack is axially arranged along the pushing oil cylinder (2).
4. A synchronous net twining mechanism for a baler according to claim 3, characterized in that the signal transmission assembly comprises an encoder assembly (5) mounted within a housing (1);
one end of the encoder assembly (5) is rotatably provided with a driven gear (4), and the driven gear (4) is meshed with the driving rack (3).
5. A synchronous net twining mechanism for baler according to claim 4, characterized in that the control assembly comprises a controller (6), a valve block (8) and several communication lines (7);
the controller (6) is arranged on the surface of the shell (1), is connected with the encoder assembly (5) through a communication line (7) in a signal manner, and is used for generating a control signal according to the speed information of the pushing assembly;
the controller (6) is also connected with the valve group (8) through a communication line (7) in a signal manner, and a control signal is sent out through the valve group (8).
6. A synchronous net twining mechanism for a packer according to claim 5, characterized in that the net twining assembly comprises a net twining motor (9), a driving gear (10), a bag outlet pipe body (12), a net twining gear ring (15) and a net twining roller (16);
the net winding motor (9) is arranged on the surface of the shell (1) and is connected with the controller (6) through a communication wire (7);
the driving gear (10) is arranged on an output shaft of the net winding motor (9);
the driving gear (10) is meshed with the net winding gear ring (15);
the bale outlet pipe body (12) passes through the axle center of the net winding gear ring (15) to be connected with the shell (1), and the bale is packaged at the opening of the bale outlet pipe body (12);
the net winding roller (16) is rotatably arranged on the end face of the net winding gear ring (15).
7. The synchronous net winding mechanism for the packer according to claim 6, wherein a stabilizing plate (13) is further arranged on the inner side of the net winding gear ring (15), and the stabilizing plate (13) is fixedly connected with the ladle outlet pipe body (12);
the surface of the stabilizing plate (13) is rotatably provided with a plurality of positioning wheels (14), and the positioning wheels (14) are propped against the inner surface of the net winding gear ring (15).
8. A synchronous net twining mechanism for a packer according to claim 6 or 7, characterized in that the net breaking assembly comprises a net breaking cylinder (11) and a net breaking cutter (17), the net breaking cutter (17) being mounted at one end of a telescopic shaft of the net breaking cylinder (11) for cutting off net ropes after net twining is finished.
9. A synchronous net twining mechanism for packer as claimed in claim 8, characterized in that the net breaking cylinder (11) is mounted on a surface of the casing (1).
10. A synchronous net twining mechanism for a packer according to claim 8, characterized in that the net twining motor (9) is adapted to receive a control signal of the valve block (8), controlling the rotational speed of the net twining motor (9);
the net breaking cylinder (11) is used for receiving control signals of the valve group (8), and the net breaking cutter (17) is driven to cut off net ropes after net winding of the net winding motor (9) is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311371495.4A CN117416556A (en) | 2023-10-20 | 2023-10-20 | Synchronous net winding mechanism for packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311371495.4A CN117416556A (en) | 2023-10-20 | 2023-10-20 | Synchronous net winding mechanism for packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117416556A true CN117416556A (en) | 2024-01-19 |
Family
ID=89529586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311371495.4A Pending CN117416556A (en) | 2023-10-20 | 2023-10-20 | Synchronous net winding mechanism for packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117416556A (en) |
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2023
- 2023-10-20 CN CN202311371495.4A patent/CN117416556A/en active Pending
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