CN220783300U - Grinding device is used in tower section of thick bamboo processing - Google Patents
Grinding device is used in tower section of thick bamboo processing Download PDFInfo
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- CN220783300U CN220783300U CN202322479112.7U CN202322479112U CN220783300U CN 220783300 U CN220783300 U CN 220783300U CN 202322479112 U CN202322479112 U CN 202322479112U CN 220783300 U CN220783300 U CN 220783300U
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- polishing
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- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims description 19
- 235000017491 Bambusa tulda Nutrition 0.000 title claims description 19
- 241001330002 Bambuseae Species 0.000 title claims description 19
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims description 19
- 239000011425 bamboo Substances 0.000 title claims description 19
- 238000005498 polishing Methods 0.000 claims abstract description 62
- 238000003825 pressing Methods 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims 1
- 230000007246 mechanism Effects 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 11
- 238000003466 welding Methods 0.000 description 38
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007517 polishing process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Landscapes
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The utility model belongs to the technical field of wind power tower processing, in particular to a polishing device for tower processing, which comprises a base; two vertical plates are fixedly connected to one side of the base, a second motor is mounted on one vertical plate, a second screw rod is connected to the output end of the second motor, a guide rod is fixedly connected between the two vertical plates, a moving block is sleeved on the second screw rod and the guide rod in a matched mode, a fixed column is mounted on the moving block, a cavity tube is fixedly connected to the fixed column, a standard-to-pole rod is mounted in the cavity tube in a sliding mode, a guide groove is formed in the circumferential surface of the cavity tube, a movable rod is inserted into the guide groove, and the bottom end of the movable rod is fixedly connected to the standard-to-pole rod; in order to accurately judge that the surface of the tower barrel after polishing is flat and smooth, the standard alignment mechanism is arranged, so that the surface of the tower barrel can be accurately judged to be flat and smooth, the smoothness and flatness of the surface of the tower barrel can be ensured, and the polishing effect is improved.
Description
Technical Field
The utility model relates to the technical field of wind power tower cylinder machining, in particular to a polishing device for tower cylinder machining.
Background
The wind power tower is a tower pole of wind power generation, the wind power tower is required to be subjected to blanking by using a numerical control cutting machine in the production process, then coiled and formed by using a plate bending machine, then longitudinal seam welding is performed, and after the welding is completed, the welding seam is required to be polished by using a polishing device.
The utility model provides a chinese patent with bulletin number of CN216264981U discloses an environment-friendly grinding device is used in wind-powered electricity generation tower section of thick bamboo processing, including base, polishing case, fixing base and a tower section of thick bamboo, the inside collecting box that is provided with of base, polishing case sliding connection is at the base top, the fixing base sets up in polishing case left side, fixing base quantity is two and is the symmetry setting, two the fixing base all with base top fixed connection, a tower section of thick bamboo sets up in the fixing base top, the fixing base includes deflector, gyro wheel and motor two, when using the device, not only can polish the tower section of thick bamboo and handle, also can handle and collect the dust that the polishing produced simultaneously to external environment pollution's problem has been solved, staff's work effect has been improved simultaneously.
In the prior art, after finishing polishing the tower, whether the welding seam of the tower is polished to be smooth cannot be accurately judged, so that whether the surface of the polished tower is smooth or not cannot be accurately judged, the smoothness of the surface of the tower cannot be ensured, and the polishing effect is affected; therefore, a polishing device for tower processing is provided for solving the problems.
Disclosure of Invention
In order to overcome the defects of the prior art and solve the problems set forth in the background art, the utility model provides a polishing device for tower cylinder processing.
The technical scheme adopted for solving the technical problems is as follows: the utility model relates to a polishing device for tower cylinder processing, which comprises a base; two risers are fixedly connected to one side of the base, a second motor is mounted on one riser, the output end of the second motor is connected with a second screw rod, the other end of the second screw rod is rotatably mounted on the other riser, a guide rod is fixedly connected between the two risers, a moving block is sleeved on the second screw rod and the guide rod in a matched mode, a fixed column is mounted on the moving block, a cavity pipe is fixedly connected to the fixed column, a marking rod is mounted in the cavity pipe in a sliding mode, a guide groove is formed in the circumferential surface of the cavity pipe, a movable rod is inserted in the guide groove, the bottom end of the movable rod is fixedly connected to the marking rod, a scale mark is mounted on the circumferential surface of the cavity pipe, in order to accurately judge that the surface of a tower barrel after polishing is smooth, a marking mechanism is arranged, after polishing of the welding line of the tower barrel is completed, the movable rod is manually driven to push the mark pair rod to move towards the tower drum until the tip of the mark pair rod contacts the surface of the tower drum, the hand is evacuated, then the third motor is started, the rotating rod drives the auxiliary wheel to rotate, the tower drum also rotates, after the welding seam position rotates to contact the tip position of the mark pair rod, the mark pair mark is marked, when the mark pair rod does not move, the welding seam position of the tower drum is polished and leveled, when the mark pair rod moves backwards, the welding seam position of the tower drum is not polished and leveled, so that the smoothness of the surface of the tower drum can be accurately judged, the smoothness of the surface of the tower drum can be ensured, the polishing effect is improved, the second motor is started, the second screw rod drives the moving block to move under the cooperation of the guide rod, the position of the mark pair mechanism can be changed, and the different positions of the surface of the tower drum can be judged, thereby the result of the determination of the flatness and smoothness of the tower surface is more accurate.
Preferably, the base is provided with a limit groove, both sides of the port of the limit groove are fixedly connected with a fixed plate, a first motor is arranged on one fixed plate, the output end of the first motor is connected with a first screw rod, the first screw rod is arranged on the other fixed plate, a T-shaped block is sleeved on the first screw rod, the bottom end of the T-shaped block is arranged in the limit groove, the top end of the T-shaped block is fixedly connected with a sleeve, a lifting rod is slidably arranged in the sleeve, the top end of the lifting rod is fixedly connected with a polishing head, a thread groove is formed in the circumferential surface of the sleeve, a threaded rod is inserted in the thread groove, one end of the threaded rod is fixedly connected on the lifting rod, the other end of the threaded rod is fixedly connected with a limit cap, a first locking cap is sleeved on the threaded rod, the first locking cap is arranged on the outer side of the sleeve, two fixing seats are fixedly connected to two sides of the base, rotating rods are installed on the two fixing seats on the same side in a matched mode, two auxiliary wheels are sleeved on each rotating rod, the auxiliary wheels are arranged in the fixing seats, a third motor is installed on one fixing seat, the output end of the third motor is connected with the end portion of one rotating rod, when the welding line position of the tower is polished, the tower to be polished is placed on the auxiliary wheels, the welding line is located at the lowest position, then the threaded rod is manually moved vertically upwards along the threaded groove, the lifting rod drives the polishing head to move upwards along with the lifting rod until the polishing head contacts with the welding line position of the tower, the threaded rod is fixed through the action of a first locking cap, so that the polishing head can be fixed at the current position, then the first motor is started, under the cooperation of the limiting groove, the T-shaped block drives the polishing mechanism to move, therefore, the polishing head can be moved to polish along the welding line, the welding line can be moved to polish, and the polishing efficiency of the welding line is greatly improved.
Preferably, the opposite side rigid coupling of base has the support frame, set up the screw on the support frame, it has the screw rod to alternate in the screw, the bottom of screw rod is installed through the bearing frame cooperation rotation and is pressed the briquetting, the top rigid coupling of screw rod has rotatory cap, the cover is equipped with the second locking cap on the screw rod, just the second locking cap sets up between the top of rotatory cap and support frame, in order to avoid the tower section of thick bamboo to take place the skew at polishing in-process position, through setting up pressing mechanism, rotates rotatory cap, makes the screw rod drive the briquetting and vertically move down, until pressing the briquetting and the surperficial inconsistent of tower section of thick bamboo, through the effect of second locking cap, fixes the screw rod to can be fixed the briquetting in current position, thereby can press fixed the tower section of thick bamboo, avoid the tower section of thick bamboo to take place the phenomenon of skew at polishing in-process position, thereby can carry out accurate polishing to the butt weld.
The utility model has the advantages that:
1. in order to accurately judge that the surface of the polished tower barrel is smooth, a standard-to-standard mechanism is arranged, after the welding line of the tower barrel is polished, a movable rod is manually driven to move the standard-to-standard rod towards the direction of the tower barrel until the tip of the standard-to-standard rod contacts the surface of the tower barrel, hands are evacuated, a third motor is started, a rotating rod drives an auxiliary wheel to rotate, the tower barrel is further rotated along with the auxiliary wheel, when the welding line position rotates to contact the tip position of the standard-to-standard rod, standard marks are marked when the standard-to-standard rod does not move, the welding line position of the tower barrel is indicated to be polished to be smooth, and when the standard-to-standard rod moves backwards, the welding line position of the tower barrel is indicated to be not polished to be smooth, so that the surface of the tower barrel is accurately judged to be smooth, the smoothness of the surface of the tower barrel is ensured, and the polishing effect is improved;
2. when the device is used, the second motor is started, and the second screw rod drives the moving block to move under the cooperation of the guide rod, so that the position of the marking mechanism can be changed, and the different positions of the surface of the tower can be judged, so that the result of judging the flatness and smoothness of the surface of the tower is more accurate;
3. in order to avoid the deviation of the position of the tower in the polishing process, the pressing mechanism is arranged, the rotating cap is rotated, the screw rod drives the pressing block to vertically move down until the pressing block is in contact with the surface of the tower, and the screw rod is fixed under the action of the second locking cap, so that the pressing block can be fixed at the current position, the tower can be pressed and fixed, the phenomenon that the position of the tower is deviated in the polishing process is avoided, and the welding seam can be polished accurately.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of a unitary side-view perspective;
FIG. 2 is a schematic view of a partial side perspective;
FIG. 3 is a schematic perspective view of a marking mechanism;
FIG. 4 is a schematic perspective view of a polishing mechanism;
fig. 5 is a schematic perspective view of the pressing mechanism.
In the figure: 1. a base; 2. a limit groove; 3. a fixing plate; 4. a first motor; 5. a first screw rod; 6. a T-shaped block; 7. a sleeve; 8. a lifting rod; 9. polishing head; 10. a thread groove; 11. a threaded rod; 12. a first locking cap; 13. a riser; 14. a second motor; 15. a second screw rod; 16. a guide rod; 17. a moving block; 18. fixing the column; 19. a cavity tube; 20. marking the rod; 21. a guide groove; 22. a movable rod; 23. scale marks; 24. a fixing seat; 25. a rotating rod; 26. an auxiliary wheel; 27. a third motor; 28. a support frame; 29. a screw; 30. pressing the blocks; 31. rotating the cap; 32. and a second locking cap.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 3, a polishing device for tower processing includes a base 1; two vertical plates 13 are fixedly connected to one side of the base 1, a second motor 14 is installed on one vertical plate 13, the output end of the second motor 14 is connected with a second screw rod 15, the other end of the second screw rod 15 is rotatably installed on the other vertical plate 13, a guide rod 16 is fixedly connected between the two vertical plates 13, a moving block 17 is sleeved on the second screw rod 15 in a matched mode with the guide rod 16, a fixed column 18 is installed on the moving block 17, a cavity pipe 19 is fixedly connected to the fixed column 18, a standard rod 20 is slidably installed in the cavity pipe 19, a guide groove 21 is formed in the circumferential surface of the cavity pipe 19, a movable rod 22 is inserted in the guide groove 21, the bottom end of the movable rod 22 is fixedly connected to the standard rod 20, and a scale mark 23 is assembled on the circumferential surface of the cavity pipe 19; in order to accurately judge that the polished tower drum surface is smooth, a standard alignment mechanism is arranged, after the tower drum welding seam is polished, a movable rod 22 is manually moved in a guide groove 21 to further push a standard alignment rod 20 to move towards the tower drum direction until the tip of the standard alignment rod 20 is contacted with the tower drum surface, a hand is evacuated, a third motor 27 is started, a rotating rod 25 drives an auxiliary wheel 26 to rotate, the tower drum is further rotated, after the welding seam position rotates to be contacted with the tip position of the standard alignment rod 20, a standard mark line 23 is aligned, when the standard alignment rod 20 does not move, the tower drum welding seam position is polished to be smooth, when the standard alignment rod 20 moves backwards, the tower drum welding seam position is not polished to be smooth, so that the smoothness of the tower drum surface can be accurately judged, the polishing effect is improved, and a second screw 15 drives a moving block 17 to move under the cooperation of the guide rod 16, so that the position of the standard alignment mechanism can be changed, and the smoothness of the tower drum surface can be accurately judged.
Referring to fig. 2 and 4, the base 1 is provided with a limit groove 2, two sides of a port of the limit groove 2 are fixedly connected with a fixing plate 3, a first motor 4 is installed on one fixing plate 3, an output end of the first motor 4 is connected with a first screw rod 5, the first screw rod 5 is arranged on the other fixing plate 3, a T-shaped block 6 is sleeved on the first screw rod 5, the bottom end of the T-shaped block 6 is arranged in the limit groove 2, a sleeve 7 is fixedly connected with the top end of the T-shaped block 6, a lifting rod 8 is slidably installed in the sleeve 7, a polishing head 9 is fixedly connected with the top end of the lifting rod 8, a thread groove 10 is formed in the circumferential surface of the sleeve 7, a threaded rod 11 is inserted in the thread groove 10, one end of the threaded rod 11 is fixedly connected with the lifting rod 8, the other end of the threaded rod 11 is fixedly connected with a limit cap, a first locking cap 12 is sleeved on the threaded rod 11, and the first locking cap 12 is arranged on the outer side of the sleeve 7; when the welding line position of the tower barrel is polished, the tower barrel to be polished is placed on the auxiliary wheel 26, the welding line is positioned at the lowest position, then the threaded rod 11 is manually moved upwards along the threaded groove 10, the lifting rod 8 drives the polishing head 9 to move upwards along with the threaded rod, the threaded rod 11 is fixed under the action of the first locking cap 12 until the polishing head 9 contacts with the welding line position of the tower barrel, so that the polishing head 9 can be fixed at the current position, the first motor 4 is started, the T-shaped block 6 drives the polishing mechanism to move under the cooperation of the limiting groove 2, so that the polishing head 9 can move along the welding line for polishing, and the welding line polishing efficiency is greatly improved.
Referring to fig. 5, two fixing seats 24 are fixedly connected to two sides of the base 1, two fixing seats 24 on the same side are rotatably provided with rotating rods 25 in a matching manner, each rotating rod 25 is sleeved with two auxiliary wheels 26, each auxiliary wheel 26 is arranged in each fixing seat 24, one fixing seat 24 is provided with a third motor 27, the output end of each third motor 27 is connected with the end part of one rotating rod 25, the other side of the base 1 is fixedly connected with a supporting frame 28, a screw hole is formed in each supporting frame 28, a screw rod 29 is inserted in each screw hole, the bottom end of each screw rod 29 is rotatably provided with a pressing block 30 in a matching manner through a bearing seat, the top end of each screw rod 29 is fixedly connected with a rotating cap 31, each screw rod 29 is sleeved with a second locking cap 32, and the second locking cap 32 is arranged between the rotating cap 31 and the top part of each supporting frame 28; in order to avoid the tower section of thick bamboo to take place the skew at the in-process of polishing, through setting up pressing mechanism, rotate rotatory cap 31, make screw 29 drive press briquetting 30 vertical downshift, until pressing briquetting 30 is inconsistent with the tower section of thick bamboo surface, through the effect of second locking cap 32, fix screw 29 to can fix pressing briquetting 30 in current position, thereby can press down the tower section of thick bamboo fixedly, avoid the tower section of thick bamboo to take place the phenomenon of skew at the in-process of polishing, thereby can carry out accurate polishing to the weld.
The working principle is that in the prior art, after the tower drum is polished, whether the welding seam of the tower drum is polished to be smooth cannot be accurately judged, so that whether the surface of the polished tower drum is smooth or not cannot be accurately judged, the smoothness of the surface of the tower drum cannot be ensured, and the polishing effect is affected; therefore, aiming at the problems, a polishing device for tower processing is provided; in order to accurately judge that the polished tower drum surface is smooth, a standard alignment mechanism is arranged, after the tower drum welding line is polished, a movable rod 22 is manually moved in a guide groove 21 to further push a standard alignment rod 20 to move towards the tower drum direction until the tip of the standard alignment rod 20 is contacted with the tower drum surface, a hand is evacuated, then a third motor 27 is started, a rotating rod 25 drives an auxiliary wheel 26 to rotate, the tower drum is further rotated, when the welding line position is rotated to be contacted with the tip position of the standard alignment rod 20, a standard mark line 23 is aligned, when the standard alignment rod 20 is not moved, the position of the tower drum welding line is polished to be smooth, when the standard alignment rod 20 is moved backwards, the position of the tower drum welding line is not polished to be smooth, so that the smoothness of the surface of the tower drum is accurately judged, the polishing effect is improved, and a second screw 15 drives a moving block 17 to move under the cooperation of the guide rod 16, so that the position of the standard alignment mechanism is changed, and the smoothness of the surface of the tower drum is accurately judged;
when the welding line position of the tower barrel is polished, the tower barrel to be polished is placed on the auxiliary wheel 26, the welding line is positioned at the lowest position, then the threaded rod 11 is manually moved upwards along the threaded groove 10, the lifting rod 8 drives the polishing head 9 to move upwards along with the threaded rod, the threaded rod 11 is fixed under the action of the first locking cap 12 until the polishing head 9 contacts with the welding line position of the tower barrel, so that the polishing head 9 can be fixed at the current position, the first motor 4 is started, and the T-shaped block 6 drives the polishing mechanism to move under the cooperation of the limiting groove 2, so that the polishing head 9 can move along the welding line for polishing, and the welding line polishing efficiency is greatly improved; in order to avoid the tower section of thick bamboo to take place the skew at the in-process of polishing, through setting up pressing mechanism, rotate rotatory cap 31, make screw 29 drive press briquetting 30 vertical downshift, until pressing briquetting 30 is inconsistent with the tower section of thick bamboo surface, through the effect of second locking cap 32, fix screw 29 to can fix pressing briquetting 30 in current position, thereby can press down the tower section of thick bamboo fixedly, avoid the tower section of thick bamboo to take place the phenomenon of skew at the in-process of polishing, thereby can carry out accurate polishing to the weld.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (6)
1. Grinding device is used in tower section of thick bamboo processing, its characterized in that: comprises a base (1); one side rigid coupling of base (1) has two risers (13), installs second motor (14) on riser (13), the output of second motor (14) is connected with second lead screw (15), just the other end of second lead screw (15) rotates and installs another on riser (13), rigid coupling has guide bar (16) between two risers (13), second lead screw (15) and guide bar (16) cooperation cover are equipped with movable block (17), install fixed column (18) on movable block (17), the rigid coupling has cavity pipe (19) on fixed column (18), slidable mounting has mark pole (20) on cavity pipe (19), set up guide way (21) on the periphery of cavity pipe (19), alternate in guide way (21) have movable rod (22), just the bottom rigid coupling of movable rod (22) is on mark pole (20), be equipped with scale mark (23) on the periphery of cavity pipe (19).
2. The polishing device for tower processing according to claim 1, wherein: the utility model discloses a motor, including base (1) and fixed plate (2), fixed plate (3) are all fixed in the port department both sides of limit groove (2), install first motor (4) on fixed plate (3), the output of first motor (4) is connected with first lead screw (5), just first lead screw (5) set up another on fixed plate (3), the cover is equipped with T shape piece (6) on first lead screw (5), just the bottom setting of T shape piece (6) is in limit groove (2), the top rigid coupling of T shape piece (6) has sleeve (7).
3. The polishing device for tower processing according to claim 2, wherein: the utility model discloses a grinding device for a grinding machine, including sleeve (7), threaded rod (11) and sleeve (7), install lifter (8) in sleeve (7), the top rigid coupling of lifter (8) has head of polishing (9), threaded groove (10) have been seted up on the periphery of sleeve (7), threaded rod (11)'s one end rigid coupling is on lifter (8), threaded rod (11)'s the other end rigid coupling has spacing cap, the cover is equipped with first locking cap (12) on threaded rod (11), just first locking cap (12) set up in sleeve (7)'s outside.
4. The polishing device for tower processing according to claim 1, wherein: two fixing seats (24) are fixedly connected to two sides of the base (1), rotating rods (25) are installed on the two fixing seats (24) on the same side in a matched rotating mode, two auxiliary wheels (26) are sleeved on each rotating rod (25), the auxiliary wheels (26) are arranged in the fixing seats (24), a third motor (27) is installed on one fixing seat (24), and the output end of the third motor (27) is connected with the end portion of one rotating rod (25).
5. The polishing device for tower processing according to claim 1, wherein: the other side rigid coupling of base (1) has support frame (28), set up the screw on support frame (28), interlude in the screw has screw rod (29), the bottom of screw rod (29) is through bearing frame cooperation rotation installation pressing piece (30).
6. The polishing device for tower processing according to claim 5, wherein: the top rigid coupling of screw rod (29) has rotatory cap (31), the cover is equipped with second locking cap (32) on screw rod (29), just second locking cap (32) set up between the top of rotatory cap (31) and support frame (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322479112.7U CN220783300U (en) | 2023-09-12 | 2023-09-12 | Grinding device is used in tower section of thick bamboo processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322479112.7U CN220783300U (en) | 2023-09-12 | 2023-09-12 | Grinding device is used in tower section of thick bamboo processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220783300U true CN220783300U (en) | 2024-04-16 |
Family
ID=90652469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322479112.7U Active CN220783300U (en) | 2023-09-12 | 2023-09-12 | Grinding device is used in tower section of thick bamboo processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220783300U (en) |
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2023
- 2023-09-12 CN CN202322479112.7U patent/CN220783300U/en active Active
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