CN112478691A - High-accuracy positioning mechanism for machining plate-shaped workpiece - Google Patents
High-accuracy positioning mechanism for machining plate-shaped workpiece Download PDFInfo
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- CN112478691A CN112478691A CN202011447745.4A CN202011447745A CN112478691A CN 112478691 A CN112478691 A CN 112478691A CN 202011447745 A CN202011447745 A CN 202011447745A CN 112478691 A CN112478691 A CN 112478691A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
- B65G47/24—Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
- B65G2201/0214—Articles of special size, shape or weigh
- B65G2201/022—Flat
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a positioning mechanism for processing a plate-shaped workpiece with high accuracy, which comprises a conveying mechanism, a positioning mechanism, a transmission gear, a fixed motor and a toothed belt, wherein the upper end surface of the conveying mechanism is fixedly connected with the positioning mechanism for supporting, the side end surface of the positioning mechanism, which is close to the top, is fixedly connected with the fixed motor, and the front end surface of the fixed motor is fixedly sleeved with the transmission gear for transmission. The invention can adjust the angle and position of the plate-shaped workpiece without stopping when the plate-shaped workpiece is processed, and can provide enough power for an external transmission mechanism through the mounting shaft when transmission is carried out, thereby facilitating various subsequent processing of the plate-shaped workpiece and improving the efficiency of power utilization.
Description
Technical Field
The invention relates to the technical field of mechanical equipment, in particular to a positioning mechanism for machining a plate-shaped workpiece with high accuracy.
Background
Most of plate-shaped workpieces are integrally conveyed and processed during processing, so that the processing efficiency of the plate-shaped workpieces is improved, meanwhile, a positioning mechanism is one of necessary equipment in a plurality of machines during processing, the precision of processing the plate-shaped workpieces can be effectively improved, the processing efficiency of the workpieces is improved,
however, when the plate-shaped workpiece is processed by the conventional positioning mechanism for processing the plate-shaped workpiece, the angle and the displacement cannot be quickly regulated and controlled according to the requirements of a user, and the adaptability of subsequently processing the workpiece is reduced, so that a positioning mechanism with high accuracy for processing the plate-shaped workpiece is urgently needed to solve the existing problems.
Disclosure of Invention
The present invention is directed to a positioning mechanism for processing a plate-shaped workpiece with high accuracy, which solves the above-mentioned problems of the related art.
In order to achieve the purpose, the invention provides the following technical scheme: a positioning mechanism for processing a plate-shaped workpiece with high precision, which comprises a conveying mechanism, a positioning mechanism, a transmission gear, a fixed motor and a toothed belt,
conveying mechanism's up end fixedly connected with is used for the positioning mechanism who supports, and is located positioning mechanism's side end face is close to top fixedly connected with fixed motor, fixed cover of fixed motor's preceding terminal surface has connect and is used for driven drive gear, and is located conveying mechanism's side end face is close to end fixedly connected with stop gear, drive gear with carry out meshing rotation through toothed belt between the stop gear and be connected.
Preferably, conveying mechanism includes spacing support, conveyer belt, check baffle, belt pulley, constant head tank and mounting groove, the side end face symmetry of spacing support is offered and is used for spacing mounting groove, and is located the interior terminal surface of mounting groove rotates the joint and has the belt pulley, the constant head tank that is used for connecting is offered to the side end face center department of belt pulley, and two sets of the outer terminal surface meshing of belt pulley is rotated and is connected with the conveyer belt, and is located the outer terminal surface symmetry fixedly connected with check baffle of conveyer belt.
Preferably, the positioning mechanism comprises a first support plate, a limiting clamping plate, a limiting worm, a fixed worm, a second support plate, an installation shaft, a positioning slide seat, a positioning worm, a guide support plate, an installation motor, a fixed chute, a positioning motor, a connecting screw, a transmission worm, a connecting screw rod and a fixed slide block, the limiting worm is rotatably clamped at the center of the inner end surface of the guide support plate, the transmission worm is fixedly connected at the position, close to the top, of the side end surface of the guide support plate, the limiting clamping plate is rotatably clamped at the center of the side end surface of the transmission worm, the first support plate for supporting is fixedly connected at the rear end surface of the limiting clamping plate, the positioning motor is fixedly arranged at the side end surface of the limiting clamping plate, the connecting screw is fixedly connected at the front end surface of the positioning motor, and the fixed chute for positioning is arranged at the center of the lower, and the side end face of the guide support plate is fixedly provided with an installation motor opposite to the fixed chute, the center of the front end face of the installation motor is fixedly connected with a connecting lead screw, the inner end face of the fixed chute is slidably connected with a fixed sliding block in a clamping manner, the bottom end face of the fixed sliding block is fixedly connected with a positioning sliding seat, the upper end face of the positioning sliding seat is rotatably connected with a fixed scroll bar at a position close to the top, the front end face of the positioning sliding seat is rotatably connected with a positioning turbine at a position close to the center, the front end face of the positioning turbine is fixedly provided with an installation shaft, and the side end face of the guide support plate deviates from one side of the installation motor and is.
Preferably, the bottom of first backup pad and second backup pad all carries out fixed connection with spacing support, constant head tank and limit gear looks adaptation, just limit gear passes through constant head tank fixed joint in the side end face of belt pulley, can improve the follow-up convenient performance of fixing a position.
Preferably, fixed scroll bar meshes with spacing scroll bar and rotates to be connected, just the location turbine meshes with the lower terminal surface of fixed scroll bar and rotates to be connected, and fixed scroll bar meshes with spacing scroll bar, can provide sufficient support basis for displacement during follow-up retransmission.
Preferably, the fixed sliding block and the cross section of the fixed sliding groove are arranged in a T shape, the positioning sliding seat is matched with the fixed sliding groove through the fixed sliding block and then is in sliding clamping connection with the bottom end face of the guide support plate, and therefore when follow-up re-displacement is prevented, the positioning sliding seat and the guide support plate are prevented from falling off, and connection stability is improved.
Preferably, a threaded hole is formed in the center of the side end face of the fixed sliding block, the threaded hole is matched with the connecting screw rod, the mounting motor is matched with the threaded hole through the connecting screw rod to drive the positioning sliding seat to slide, the stability of the positioning sliding seat in sliding on the upper portion of the guide support plate can be effectively improved, and the stability of subsequent workpiece processing is improved.
Preferably, the front end face of the fixed motor is fixedly connected with three groups of support plates, and the transmission gear is not in contact with the support plates, so that the support plates are prevented from limiting the transmission gear when the transmission is subsequently carried out, and the transmission stability is improved.
Compared with the prior art, the invention has the following beneficial effects:
1. when the invention is used for processing a plate-shaped workpiece, a user can start the fixed motor through the external control mechanism, the inner part of the fixed motor can drive the transmission gear to rapidly rotate, the transmission gear drives the limit gear to rapidly rotate through the toothed belt, and simultaneously when the limit gear rotates, the belt pulley can drive the conveying belt to rotate outside the limit bracket, thereby facilitating the subsequent rapid conveying operation of the plate-shaped workpiece, simultaneously, the fixed motor can also drive the limit scroll rod to rotate when rotating, at the same time, the limit scroll rod can drive the fixed scroll rod meshed with the limit scroll rod to rapidly rotate when rotating, and the fixed scroll rod can drive the positioning turbine to mesh and rotate, thereby facilitating the subsequent positioning turbine to provide enough power for the external transmission mechanism through the mounting shaft, and facilitating the subsequent various processing of the plate-shaped workpiece, the efficiency of power utilization is improved.
2. If the angle and the position of the plate-shaped workpiece to be processed are required to be adjusted when the plate-shaped workpiece is conveyed, a user can start the installation motor through the external control mechanism, the installation motor can drive the internal connecting screw rod to rotate when rotating, and further the connecting screw rod can drive the fixed sliding block to displace in the fixed sliding chute, so that the processing position of the positioning sliding seat on the guide support plate is adjusted, the adaptability of the device is improved, if the angle of the device to be processed is required to be adjusted, the user can start the positioning motor, the positioning motor can drive the connecting screw rod to rotate, and further the connecting screw rod can drive the transmission turbine meshed with the connecting screw rod to rotate And the workpiece is turned over, so that the angle of the workpiece processed by the device is adjusted, and the subsequent efficiency of processing the plate-shaped workpiece is further improved.
Drawings
FIG. 1 is an exploded view of a body of the present invention;
FIG. 2 is an assembled view of the body of the present invention;
FIG. 3 is an exploded view of the delivery mechanism of the present invention;
FIG. 4 is an assembly view of the delivery mechanism of the present invention;
FIG. 5 is a schematic view of the positioning mechanism of the present invention;
FIG. 6 is a side view of the positioning mechanism of the present invention;
FIG. 7 is an enlarged view of a portion of the invention at I;
FIG. 8 is a partial enlarged view of the invention at II.
In the figure: the device comprises a conveying mechanism 1, a positioning mechanism 2, a transmission gear 3, a fixed motor 4, a toothed belt 5, a limit gear 6, a limit bracket 11, a conveying belt 12, a grid baffle 13, a belt pulley 14, a positioning groove 15, a mounting groove 16, a first support plate 21, a limit clamping plate 22, a limit scroll bar 23, a fixed scroll bar 24, a second support plate 25, a mounting shaft 26, a positioning slide seat 27, a positioning turbine 28, a guide support plate 29, a mounting motor 210, a fixed chute 211, a positioning motor 212, a connecting screw 213, a transmission turbine 214, a connecting screw 215 and a fixed sliding block 216.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, an embodiment of the present invention: a positioning mechanism for processing a plate-shaped workpiece with high precision comprises a conveying mechanism 1, a positioning mechanism 2, a transmission gear 3, a fixed motor 4 and a toothed belt 5,
the upper end face of the conveying mechanism 1 is fixedly connected with a positioning mechanism 2 used for supporting, a side end face located on the positioning mechanism 2 is close to the top and fixedly connected with a fixed motor 4, a transmission gear 3 used for transmission is fixedly sleeved on the front end face of the fixed motor 4, a limit gear 6 is fixedly connected to the side end face located on the conveying mechanism 1 and close to the end, and the transmission gear 3 and the limit gear 6 are connected in a meshing rotation mode through a toothed belt 5.
The positioning mechanism 2 comprises a first support plate 21, a limiting clamping plate 22, a limiting worm 23, a fixed worm 24, a second support plate 25, a mounting shaft 26, a positioning slide seat 27, a positioning turbine 28, a guide support plate 29, a mounting motor 210, a fixed chute 211, a positioning motor 212, a connecting screw 213, a transmission turbine 214, a connecting screw 215 and a fixed slide block 216, wherein the limiting worm 23 is rotatably clamped at the center of the inner end surface of the guide support plate 29, the transmission turbine 214 is fixedly connected at the position, close to the top, of the side end surface of the guide support plate 29, the limiting clamping plate 22 is rotatably clamped at the center of the side end surface of the transmission turbine 214, the first support plate 21 for supporting is fixedly connected at the rear end surface of the limiting clamping plate 22, the positioning motor 212 is fixedly installed at the side end surface of the limiting clamping plate 22, the connecting screw 213 is fixedly connected at the front end surface of the positioning motor 212, the fixed chute 211 for positioning is, and the side end face of the guide support plate 29 is fixedly provided with an installation motor 210 opposite to the fixed chute 211, the center of the front end face of the installation motor 210 is fixedly connected with a connecting screw rod 215, the inner end face of the fixed chute 211 is slidably clamped with a fixed slide block 216, the bottom end face of the fixed slide block 216 is fixedly connected with a positioning slide seat 27, the upper end face of the positioning slide seat 27 close to the top is rotatably clamped with a fixed scroll rod 24, the front end face of the positioning slide seat 27 close to the center is rotatably clamped with a positioning turbine 28, the front end face of the positioning turbine 28 is fixedly provided with an installation shaft 26, and the side end face of the guide support plate 29 away from the side of the installation motor 210 is rotatably clamped with a.
The bottom of first backup pad 21 and second backup pad 25 all carries out fixed connection with spacing support 11, constant head tank 15 and stop gear 6 looks adaptation, and stop gear 6 passes through the fixed joint of constant head tank 15 at the side end face of belt pulley 14, can improve the follow-up convenient performance of fixing a position.
Fixed scroll 24 meshes with spacing scroll 23 and rotates and is connected, and location turbine 28 meshes with the lower terminal surface of fixed scroll 24 and rotates and is connected, and fixed scroll 24 meshes with spacing scroll 23, can provide sufficient support basis for displacement during follow-up retransmission.
The cross sections of the fixed sliding block 216 and the fixed sliding groove 211 are both in a T-shaped arrangement, and the positioning sliding seat 27 is matched with the fixed sliding groove 211 through the fixed sliding block 216 and then is in sliding clamping connection with the bottom end face of the guide support plate 29, so that the positioning sliding seat 27 and the guide support plate 29 can be prevented from falling off during subsequent re-displacement, and the connection stability is improved.
The threaded hole is formed in the center of the side end face of the fixed sliding block 216, the threaded hole is matched with the connecting screw rod 215, the mounting motor 210 is matched with the threaded hole through the connecting screw rod 215 to drive the positioning sliding seat 27 to slide, the stability of the positioning sliding seat 27 in sliding on the upper portion of the guide support plate 29 can be effectively improved, and the stability of subsequent workpiece processing is improved.
Three groups of support plates are fixedly connected to the front end face of the fixed motor 4, and the transmission gear 3 is not in contact with the support plates, so that the support plates are prevented from limiting the transmission gear 3 when transmission is subsequently performed, and the transmission stability is improved.
The working principle is as follows: when in use, a user can directly install the external clamping mechanism or the cutting mechanism on the side surface of the positioning slide seat 27 through the transmission mechanism, the mounting shaft 26 can provide power for the transmission mechanism to facilitate subsequent rapid processing operation on the conveyed plate-shaped object, the efficiency of processing the plate-shaped object is improved,
when a plate-shaped workpiece is processed, as shown in fig. 1, 5, 7 and 8, a user can start the fixed motor 4 through the external control mechanism, at this time, the inside of the fixed motor 4 can drive the transmission gear 3 to rapidly rotate, and the transmission gear 3 drives the limit gear 6 to rapidly rotate through the toothed belt 5, and at the same time, when the limit gear 6 rotates, the belt pulley 14 can drive the transmission belt 12 to rotate outside the limit bracket 11, so as to facilitate subsequent rapid transmission operation of the plate-shaped workpiece, and at the same time, the fixed motor 4 can drive the limit scroll bar 23 to rotate when rotating, at this time, the limit scroll bar 23 can drive the fixed scroll bar 24 engaged therewith to rapidly rotate when rotating, and the fixed scroll bar 24 can drive the positioning turbine 28 to mesh and rotate, so that the subsequent positioning turbine 28 can provide sufficient power for the external transmission mechanism through the mounting shaft 26, facilitates various subsequent processing of the plate-shaped workpiece, improves the efficiency of power utilization,
if the angle and position of processing the plate-shaped workpiece need to be adjusted when the plate-shaped workpiece is conveyed, as shown in fig. 7 and 8, at this time, a user can start the installation motor 210 through the external control mechanism, when the installation motor 210 rotates, the internal connection screw 215 can be driven to rotate, and further the connection screw 215 can drive the fixed slider 216 to displace inside the fixed chute 211, so as to adjust the processing position of the positioning slide 27 on the guide support plate 29, thereby improving the adaptability of the device, if the angle of processing the device needs to be adjusted, at this time, the user can start the positioning motor 212, the positioning motor 212 can drive the connection screw 213 to rotate, and further the connection screw 213 can drive the transmission turbine 214 engaged with the connection screw to rotate, because the transmission turbine 214 is fixedly connected with the guide support plate 29, and the guide support plate 29 is rotatably connected with the first support plate 21 and the second support plate 25, and then the positioning motor 212 can drive the guide support plate 29 to turn over integrally through the meshing of the connecting screw rod 213 and the transmission turbine 214, so that the angle of the device for processing the workpiece is adjusted, and the subsequent efficiency of processing the plate-shaped workpiece is further improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a plate-like work piece processing that accuracy is high is with positioning mechanism which characterized in that: comprises a conveying mechanism (1), a positioning mechanism (2), a transmission gear (3), a fixed motor (4) and a toothed belt (5),
the upper end face fixedly connected with of conveying mechanism (1) is used for positioning mechanism (2) that support, and is located the side end face of positioning mechanism (2) is close to top fixedly connected with fixed motor (4), the fixed drive gear (3) that are used for the transmission that has cup jointed of preceding terminal surface of fixed motor (4), and is located the side end face of conveying mechanism (1) is close to end fixedly connected with stop gear (6), drive gear (3) with carry out the meshing rotation through toothed belt (5) between stop gear (6) and connect.
2. The positioning mechanism for processing a plate-like workpiece with high accuracy according to claim 1, wherein: conveying mechanism (1) is including spacing support (11), conveyer belt (12), check baffle (13), belt pulley (14), constant head tank (15) and mounting groove (16), side end face symmetry of spacing support (11) is offered and is used for spacing mounting groove (16), and is located the interior terminal surface of mounting groove (16) rotates the joint and has belt pulley (14), constant head tank (15) that are used for connecting are offered to the side end face center department of belt pulley (14), and are two sets of the outer terminal surface meshing of belt pulley (14) is rotated and is connected with conveyer belt (12), and is located the outer terminal surface symmetry fixedly connected with check baffle (13) of conveyer belt (12).
3. The positioning mechanism for processing a plate-like workpiece with high accuracy according to claim 2, wherein: the conveying mechanism (1) comprises a first supporting plate (21), a limiting clamping plate (22), a limiting worm rod (23), a fixed worm rod (24), a second supporting plate (25), a mounting shaft (26), a positioning sliding seat (27), a positioning turbine (28), a guide supporting plate (29), a mounting motor (210), a fixed sliding groove (211), a positioning motor (212), a connecting screw rod (213), a transmission turbine (214), a connecting screw rod (215) and a fixed sliding block (216), wherein the limiting worm rod (23) is rotationally clamped at the center of the inner end face of the guide supporting plate (29), the transmission turbine (214) is fixedly connected to the position, close to the top, of the side end face of the guide supporting plate (29), the limiting clamping plate (22) is rotationally clamped at the center of the side end face of the transmission turbine (214), and the first supporting plate (21) for supporting is fixedly connected to the rear end face of the limiting clamping plate (22), a positioning motor (212) is fixedly mounted on the side end face of the limiting clamping plate (22), a connecting screw rod (213) is fixedly connected to the front end face of the positioning motor (212), a fixed sliding groove (211) for positioning is formed in the center of the lower end face of the guide support plate (29), a mounting motor (210) is fixedly mounted on the side end face of the guide support plate (29) opposite to the fixed sliding groove (211), a connecting screw rod (215) is fixedly connected to the center of the front end face of the mounting motor (210), a fixed sliding block (216) is slidably clamped on the inner end face of the fixed sliding groove (211), a positioning sliding seat (27) is fixedly connected to the bottom end face of the fixed sliding block (216), a fixed worm rod (24) is rotatably clamped on the upper end face of the positioning sliding seat (27) close to the top, and a positioning turbine (28) is rotatably clamped on the front end face of the positioning sliding seat (27) close, and a mounting shaft (26) is fixedly mounted on the front end face of the positioning turbine (28), and a second supporting plate (25) is rotatably clamped on one side, deviating from the mounting motor (210), of the side end face of the guide supporting plate (29).
4. The positioning mechanism for processing the plate-like workpiece with high accuracy according to claim 3, wherein: the bottom of first backup pad (21) and second backup pad (25) all carries out fixed connection with spacing support (11), constant head tank (15) and stop gear (6) looks adaptation, just stop gear (6) are through the side end face of the fixed joint of constant head tank (15) at belt pulley (14).
5. The positioning mechanism for processing the plate-like workpiece with high accuracy according to claim 4, wherein: the fixed scroll (24) is meshed with the limiting scroll (23) to be connected in a rotating mode, and the positioning turbine (28) is meshed with the lower end face of the fixed scroll (24) to be connected in a rotating mode.
6. The positioning mechanism for processing the plate-like workpiece with high accuracy according to claim 3, wherein: the cross sections of the fixed sliding block (216) and the fixed sliding groove (211) are arranged in a T shape, and the positioning sliding seat (27) is matched with the fixed sliding groove (211) through the fixed sliding block (216) and then is in sliding clamping connection with the bottom end face of the guide support plate (29).
7. The positioning mechanism for processing the plate-like workpiece with high accuracy according to claim 6, wherein: a threaded hole is formed in the center of the side end face of the fixed sliding block (216), the threaded hole is matched with the connecting screw rod (215), and the mounting motor (210) is matched with the threaded hole through the connecting screw rod (215) to drive the positioning sliding seat (27) to slide.
8. The positioning mechanism for processing the plate-like workpiece with high accuracy according to claim 3, wherein: the front end face of the fixed motor (4) is fixedly connected with three groups of support plates, and the transmission gear (3) is not in contact with the support plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011447745.4A CN112478691A (en) | 2020-12-09 | 2020-12-09 | High-accuracy positioning mechanism for machining plate-shaped workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011447745.4A CN112478691A (en) | 2020-12-09 | 2020-12-09 | High-accuracy positioning mechanism for machining plate-shaped workpiece |
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| Publication Number | Publication Date |
|---|---|
| CN112478691A true CN112478691A (en) | 2021-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011447745.4A Withdrawn CN112478691A (en) | 2020-12-09 | 2020-12-09 | High-accuracy positioning mechanism for machining plate-shaped workpiece |
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| Country | Link |
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| CN (1) | CN112478691A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113071234A (en) * | 2021-04-15 | 2021-07-06 | 潘学云 | Stamping mechanism for chemical production and packaging |
-
2020
- 2020-12-09 CN CN202011447745.4A patent/CN112478691A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113071234A (en) * | 2021-04-15 | 2021-07-06 | 潘学云 | Stamping mechanism for chemical production and packaging |
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Application publication date: 20210312 |