CN115649789B - Floating type combined bearing seat for roller - Google Patents
Floating type combined bearing seat for roller Download PDFInfo
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- CN115649789B CN115649789B CN202211221066.4A CN202211221066A CN115649789B CN 115649789 B CN115649789 B CN 115649789B CN 202211221066 A CN202211221066 A CN 202211221066A CN 115649789 B CN115649789 B CN 115649789B
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- roller
- floating
- fixed
- bearing
- seat body
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- 238000009434 installation Methods 0.000 claims abstract description 26
- 239000010687 lubricating oil Substances 0.000 claims description 51
- 210000004907 gland Anatomy 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 10
- 230000002457 bidirectional effect Effects 0.000 claims description 7
- 239000000314 lubricant Substances 0.000 description 17
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 17
- 238000001125 extrusion Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 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
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a floating type combined bearing seat for rollers, which comprises a fixed base, a floating base and two roller mounting seats, wherein the top end of the floating base is rotationally connected with one roller mounting seat through a floating mechanism, the other roller mounting seat is fixed at the top end of the fixed base, and a driving roller and a driven roller are respectively rotationally arranged on the two roller mounting seats; the floating mechanism comprises a connecting column and a floating installation seat, wherein the connecting column is rotatably installed in the floating installation seat through a bearing, and the top end of the connecting column is fixed with the bottom end of the roller installation seat. According to the invention, through the design of the floating mechanism, the roller mounting seat for mounting the driven roller can slightly rotate relative to the floating base, so that automatic fine adjustment can be realized during use, and the adjustment work of connecting the two ends of the driven roller with the front and rear directions of the bearing seat can be reduced.
Description
Technical Field
The invention relates to the technical field of belt conveyor roller installation, in particular to a floating type combined bearing seat for rollers.
Background
In order to improve the product quality and reduce the safety accidents, the production line of the steel plant needs to be stopped periodically to overhaul and maintain mechanical parts, and the bearing seat are used as key parts of equipment, so that the main point of overhaul is more important. The bearing seat is installed at the roller both ends, and the roller is a set of 2 generally, and one is the driving roll, and one is the driven voller, and two rollers are close together, and the aluminium zinc sheet passes from two rollers in the middle of, and original structure is the fixed bearing seat, need be with the driving roll during installation adjustment, the driven voller about, the fore-and-aft direction is complete leveling to be parallel, then fasten with the screw, in the use, can be because of vibration, equipment, environment, factors such as wearing and tearing, the error can be produced in the position of two rollers, this can influence panel quality to reduce bearing life, need shut down the maintenance as early as possible when serious, avoid causing huge loss.
Disclosure of Invention
The invention provides a floating type combined bearing seat for a roller, which solves the problems in the background technology.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a floating type combined bearing seat for a roller comprises a fixed base, a floating base and two roller mounting seats, wherein the top end of the floating base is rotationally connected with one roller mounting seat through a floating mechanism, the other roller mounting seat is fixed at the top end of the fixed base, and a driving roller and a driven roller are respectively rotationally arranged on the two roller mounting seats;
The floating mechanism comprises a connecting column and a floating installation seat, wherein the connecting column is rotatably installed in the floating installation seat through a bearing, and the top end of the connecting column is fixed with the bottom end of the roller installation seat.
Preferably, the bearing sleeve is arranged outside the connecting column, the bearing inner ring is fixed with the connecting column, the bearing inner ring is fixed at the bottom end of the connecting column through a small gland bolt, an annular large gland is fixed at the bottom end of the floating mounting seat outside the connecting column through a bolt, and the large gland is fixed with the bearing outer ring.
Preferably, the roller mounting seat comprises a lower seat body and an upper seat body, one side of the upper seat body is hinged with the lower seat body, and a bearing for mounting the driving roller and the driven roller is arranged between the lower seat body and the upper seat body.
Preferably, the top of the lower seat body is fixed with a locking threaded rod, the upper seat body is provided with a first notch through which the locking threaded rod passes when the upper seat body rotates, and the locking threaded rod is provided with a nut in a threaded manner.
Preferably, the bottom mounting of going up the pedestal has the auxiliary positioning pin, the second breach that matches with the auxiliary positioning pin has been seted up on the top of lower pedestal, be equipped with the installation cavity on the lower pedestal, the installation intracavity rotates the two-way threaded rod that installs the level setting, two screw thread sleeves are installed to the external screw thread of two-way threaded rod, screw thread telescopic top is fixed with the latch, the latch slot that corresponds with the latch has been seted up on the auxiliary positioning pin, be fixed with the guide bar that the level set up on the latch, set up the guide way that matches with the guide bar on the inner wall of installation cavity.
Preferably, one end of the bidirectional threaded rod extends to the outer part of the lower seat body to be fixed with a rotating handle, and the outer side of the rotating handle is provided with a rubber sleeve.
Preferably, a bearing dust cover is fixed on one side of the lower seat body, and a lubricating oil adding mechanism is arranged on the bearing dust cover.
The beneficial effects of the invention are as follows:
1. Through the design of the floating mechanism, the roller mounting seat for mounting the driven roller can slightly rotate relative to the floating base, so that automatic fine adjustment can be realized during use, and the adjustment work of connecting the two ends of the driven roller with the front and rear directions of the bearing seat can be reduced;
2. The handle is rotated to conveniently rotate the bidirectional threaded rod in a labor-saving manner so as to drive the two threaded sleeves to move close to each other and away from each other, and further drive the two locking bolts to move away from each other and move close to each other, when the two locking bolts move close to each other and are inserted into the locking slots on the auxiliary positioning pins, the purpose of rapidly locking the relative positions of the upper seat body and the lower seat body can be achieved, the driving roller and the driven roller can be pre-fixed before the nut is installed, and the driving roller and the driven roller are placed before the nut is installed to incline, so that convenience is brought to installation;
3. The rotary driving mechanism drives the lubricating oil container to rotate, when the lubricating oil container rotates, the inner thread hexagonal sleeve can be driven to rotate relative to the hollow fixed screw rod, and the piston is driven to move towards the lubricating oil extrusion pipe, so that lubricating oil can be extruded from the lubricating oil extrusion pipe, lubricating oil is automatically added to the bearing, the lubricating oil extrusion pipe can rotate along with the lubricating oil container while extruding the lubricating oil, and further lubricating oil can be continuously added around gaps between the inner ring and the outer ring of the bearing, and the lubricating oil adding effect is better;
4. After the use of lubricating oil in the lubricating oil container is complete, the precursor driving piston moves to one side far away from the lubricating oil extrusion pipe, then lubricating oil is injected through the lubricating oil injection port, the lubricating oil enters the lubricating oil container through the hollow fixed screw rod, the internal thread hexagonal sleeve and the one-way valve, and the one-way valve can ensure that lubricating oil in the lubricating oil container can not flow back into the internal thread hexagonal sleeve, so that the lubricating oil is added into the lubricating oil container more conveniently.
Drawings
Fig. 1 is a front view of a floating type combined bearing block for a roller according to the present invention.
Fig. 2 is a side view and an angular cross-section of a roller mount of a floating type combination bearing housing used in the roller according to the present invention.
FIG. 3 is a schematic diagram of a floating type combination bearing block for a roller according to the prior art.
Fig. 4 is a perspective view of a lubricating oil adding mechanism of a floating type combined bearing seat for a roller.
Fig. 5 is a cross-sectional view of a lubricating oil adding mechanism of a floating type combined bearing seat for a roller.
Fig. 6 is a cross-sectional view of a lubricant container in a lubricant adding mechanism of a floating type combined bearing seat for a roller according to the present invention.
Fig. 7 is a perspective view of a lubricant container in a lubricant adding mechanism of a floating type combined bearing seat for a roller.
Reference numerals in the drawings: 1. a fixed base; 2. a floating base; 3. a driving roller; 4. a lower base; 5. an upper base; 6. a driven roller; 7. a floating mount; 8. a small gland; 9. a bearing; 10. a large gland; 11. a first notch; 12. locking the threaded rod; 13. a connecting column; 14. a nut; 15. a second notch; 16. auxiliary positioning pins; 17. a mounting cavity; 18. a two-way threaded rod; 19. a threaded sleeve; 20. a dead bolt; 21. a guide rod; 22. rotating the handle; 23. a rubber sleeve; 24. a bearing dust cover; 25. a support cover; 26. bidirectional thrust angular contact ball bearings; 27. a lubricant container; 28. a lubricating oil extrusion pipe; 29. a hollow fixed screw rod; 30. a lubricant inlet; 31. an internal thread hexagonal sleeve; 32. a rotary joint; 33. a piston; 34. a one-way valve; 35. a rotating electric machine; 36. a drive gear; 37. a driven gear.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments.
Example 1
Referring to fig. 1-3, a floating type combined bearing seat for a roller comprises a fixed base 1, a floating base 2 and two roller mounting seats, wherein the top end of the floating base 2 is rotationally connected with one of the roller mounting seats through a floating mechanism, the other roller mounting seat is fixed at the top end of the fixed base 1, and a driving roller 3 and a driven roller 6 are respectively rotationally arranged on the two roller mounting seats;
The floating mechanism comprises a connecting column 13 and a floating installation seat 7, the connecting column 13 is rotatably installed in the floating installation seat 7 through a bearing 9, the top end of the connecting column 13 is fixed with the bottom end of a roller installation seat, the bearing 9 is sleeved outside the connecting column 13, the inner ring of the bearing 9 is fixed with the connecting column 13, the bottom end of the connecting column 13 is fixed with the inner ring of the bearing 9 through a small gland 8 bolt, the bottom end of the floating installation seat 7 is positioned outside the connecting column 13 and is fixedly provided with an annular large gland 10 through a bolt, the large gland 10 is fixed with the outer ring of the bearing 9, and the roller installation seat for installing the driven roller 6 can slightly rotate relative to the floating base 2 through the design of the floating mechanism, so that automatic fine adjustment can be realized when the device is used, and the adjustment work of the front and rear directions of a bearing seat connected at two ends of the driven roller 6 can be reduced.
Wherein, the cylinder mount pad includes lower pedestal 4 and last pedestal 5, and one side of going up pedestal 5 is articulated with lower pedestal 4, is equipped with the bearing of installation initiative cylinder 3 and driven cylinder 6 between lower pedestal 4 and the last pedestal 5, and upward pedestal 5 can block the top at lower pedestal 4 for lower pedestal 4 clockwise rotation, and anticlockwise rotation can separate with lower pedestal 4, can make things convenient for the installation and the dismantlement of initiative cylinder 3 and driven cylinder 6.
The top end of the lower seat body 4 is fixed with a locking threaded rod 12, a first notch 11 through which the locking threaded rod 12 passes when the upper seat body 5 rotates is formed in the upper seat body 5, a nut 14 is mounted on the locking threaded rod 12 in a threaded manner, and the upper seat body 5 can be firmly locked at the top end of the lower seat body 4 through the cooperation of the nut 14 and the locking threaded rod 12.
Wherein, the bottom mounting of going up pedestal 5 has auxiliary positioning pin 16, the second breach 15 with auxiliary positioning pin 16 matching has been seted up on the top of lower pedestal 4, be equipped with installation cavity 17 on lower pedestal 4, installation cavity 17 internal rotation is installed the two-way threaded rod 18 of level setting, two screw thread sleeves 19 are installed to the external screw thread of two-way threaded rod 18, screw thread sleeve 19's top is fixed with lock bolt 20, set up the locking slot that corresponds with lock bolt 20 on auxiliary positioning pin 16, be fixed with the guide bar 21 that the level set up on the lock bolt 20, set up the guide way with guide bar 21 matching on the inner wall of installation cavity 17, the one end of two-way threaded rod 18 extends to the outside of lower pedestal 4 is fixed with rotation handle 22, rubber sleeve 23 is installed in the outside of rotation handle 22, thereby drive two screw thread sleeves 19 and keep away from each other and remove each other through rotating two screw thread sleeves 18, and keep away from each other and move each other, when two lock bolts 20 move each other and insert the lock slot on auxiliary positioning pin 16, can make the driven body and install the driven body 3 and take place the purpose at the front at the speed of the front of the roller 3 and the fixed position of roller 3 is reached to the fixed roller 3, the driven body is installed to the driven body 4, can be fixed relatively and is realized at the front of the roller 3 and is convenient to the roller 3.
Example 2
Referring to fig. 4-7, this embodiment is different from embodiment 1 in that a bearing dust cover 24 is fixed on one side of a lower seat body 4, a lubricant adding mechanism is mounted on the bearing dust cover 24, the lubricant adding mechanism includes a lubricant container 27, the lubricant container 27 is mounted on the bearing dust cover 24 through a bidirectional thrust angular contact ball bearing 26, one end of the lubricant container 27 extends to the inside of the bearing dust cover 24 and is connected with a lubricant extrusion pipe 28, the lubricant extrusion pipe 28 is of an L-shaped structure, a supporting cover 25 is fixed on the bearing dust cover 24, the other end of the lubricant container 27 extends to the inside of the supporting cover 25, a hollow fixing screw 29 is mounted on the supporting cover 25, one end of the hollow fixing screw 29 extends to the outside of the supporting cover 25 and is fixed with a lubricant injection port 30, the other end of the hollow fixing screw 29 extends to the inside of the supporting cover 25 and an internal thread hexagonal sleeve 31 is mounted on the outside thread, the lubricating oil container 27 is provided with a hexagonal guide hole, one end of the internal thread hexagonal sleeve 31 extends to the inside of the lubricating oil container 27 through the hexagonal guide hole and is connected with a piston 33 through a rotary joint 32, one side of the piston 33 away from the internal thread hexagonal sleeve 31 is provided with a one-way valve 34, the one-way valve 34 is communicated with the internal thread hexagonal sleeve 31, a rotary driving mechanism is arranged in the supporting cover 25 and drives the lubricating oil container 27 to rotate, when the lubricating oil container 27 rotates, the internal thread hexagonal sleeve 31 can be driven to rotate relative to the hollow fixed screw 29, the internal thread hexagonal sleeve 31 can slide in the hexagonal guide hole, thereby driving the internal thread hexagonal sleeve 31 to move, driving the piston 33 to move in the lubricating oil container 27, and the piston 33 moves towards the lubricating oil extrusion pipe 28, can extrude lubricating oil from lubricating oil extrusion pipe 28, lubricating oil extrusion pipe 28 aims at the supporting bearing of initiative cylinder 3 and driven cylinder 6, thereby automatically, add lubricating oil for the bearing, lubricating oil extrusion pipe 28 can follow lubricating oil container 27 and rotate when extruding lubricating oil, thereby can add lubricating oil in succession around bearing inner and outer circle clearance, lubricating oil addition effect is better, after lubricating oil container 27 is used completely, precursor piston 33 moves to one side of keeping away from lubricating oil extrusion pipe 28, then pour into lubricating oil through lubricating oil filling port 30, lubricating oil enters into the inside of lubricating oil container 27 through hollow fixed lead screw 29 and internal thread hexagonal sleeve 31 and check valve 34, check valve 34 can guarantee that the lubricating oil in the lubricating oil container 27 can not flow back in the internal thread hexagonal sleeve 31, make it is more convenient to add lubricating oil.
Example 3
Referring to fig. 4-7, the difference between the present embodiment and embodiment 2 is that the rotation driving mechanism includes a rotation motor 35, a driving gear 36 is fixed on an output shaft of the rotation motor 35, a driven gear 37 is fixed on an outer side of the lubricant container 27, the driving gear 36 is meshed with the driven gear 37, and when the rotation motor 35 rotates, the driving gear 36 can be driven to rotate, and then the lubricant container 27 can be driven to rotate through the meshing of the driving gear 36 and the driven gear 37.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (4)
1. The floating type combined bearing seat for the roller comprises a fixed base (1), a floating base (2) and two roller mounting seats, and is characterized in that the top end of the floating base (2) is rotationally connected with one of the roller mounting seats through a floating mechanism, the other roller mounting seat is fixed at the top end of the fixed base (1), and a driving roller (3) and a driven roller (6) are respectively rotationally arranged on the two roller mounting seats;
the floating mechanism comprises a connecting column (13) and a floating installation seat (7), wherein the connecting column (13) is rotatably installed in the floating installation seat (7) through a bearing (9), and the top end of the connecting column (13) is fixed with the bottom end of the roller installation seat;
the roller mounting seat comprises a lower seat body (4) and an upper seat body (5), one side of the upper seat body (5) is hinged with the lower seat body (4), and a bearing for mounting a driving roller (3) and a driven roller (6) is arranged between the lower seat body (4) and the upper seat body (5);
The bottom end of the upper seat body (5) is fixedly provided with an auxiliary locating pin (16), the top end of the lower seat body (4) is provided with a second notch (15) matched with the auxiliary locating pin (16), the lower seat body (4) is provided with a mounting cavity (17), a horizontally arranged bidirectional threaded rod (18) is rotatably mounted in the mounting cavity (17), the external threads of the bidirectional threaded rod (18) are provided with two threaded sleeves (19), the top end of each threaded sleeve (19) is fixedly provided with a locking bolt (20), the auxiliary locating pin (16) is provided with a locking slot corresponding to the locking bolt (20), the locking bolt (20) is fixedly provided with a horizontally arranged guide rod (21), and the inner wall of the mounting cavity (17) is provided with a guide groove matched with the guide rod (21);
One end of the bidirectional threaded rod (18) extends to the outer part of the lower seat body (4) to be fixed with a rotary handle (22), and a rubber sleeve (23) is arranged on the outer side of the rotary handle (22).
2. The floating type combined bearing seat for the roller according to claim 1, wherein the bearing (9) is sleeved outside the connecting column (13), an inner ring of the bearing (9) is fixed with the connecting column (13), an inner ring of the bearing (9) is fixed at the bottom end of the connecting column (13) through a small gland (8) by bolts, an annular large gland (10) is fixed at the bottom end of the floating installation seat (7) outside the connecting column (13) through bolts, and the large gland (10) is fixed with an outer ring of the bearing (9).
3. A floating type combined bearing seat for a roller according to claim 1, wherein the top end of the lower seat body (4) is fixed with a locking threaded rod (12), the upper seat body (5) is provided with a first notch (11) through which the locking threaded rod (12) passes when the upper seat body (5) rotates, and the locking threaded rod (12) is provided with a nut (14) in a threaded manner.
4. A floating combined bearing block for a roller according to claim 1, characterized in that a bearing dust cover (24) is fixed on one side of the lower base body (4), and a lubricating oil adding mechanism is arranged on the bearing dust cover (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211221066.4A CN115649789B (en) | 2022-10-08 | 2022-10-08 | Floating type combined bearing seat for roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211221066.4A CN115649789B (en) | 2022-10-08 | 2022-10-08 | Floating type combined bearing seat for roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115649789A CN115649789A (en) | 2023-01-31 |
| CN115649789B true CN115649789B (en) | 2024-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211221066.4A Active CN115649789B (en) | 2022-10-08 | 2022-10-08 | Floating type combined bearing seat for roller |
Country Status (1)
| Country | Link |
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| CN (1) | CN115649789B (en) |
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| DE202009009806U1 (en) * | 2009-07-17 | 2009-09-10 | Interroll Holding Ag | Conveyor roller with improved smoothness |
| CN104755256A (en) * | 2012-10-22 | 2015-07-01 | 李赛克奥地利有限公司 | Device for laminating plate-shaped articles |
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| CN107445462A (en) * | 2017-09-07 | 2017-12-08 | 成都中光电科技有限公司 | A kind of driven split carry-over pinch rolls floating installation of TFT LCD liquid-crystalline glasses |
| CN211436797U (en) * | 2019-10-24 | 2020-09-08 | 广州合纵智能设备有限公司 | Quick automatic oiling station |
| CN213613459U (en) * | 2020-06-12 | 2021-07-06 | 苏州科恩塑胶有限公司 | Flanging device for die cutting |
| CN214774202U (en) * | 2021-04-10 | 2021-11-19 | 湘潭炜达机电制造有限公司 | Extrusion shaft floating support structure of extruder |
| CN114786895A (en) * | 2019-09-10 | 2022-07-22 | 博浩特股份公司 | Punch for punching labels and lids |
| CN217157824U (en) * | 2022-04-20 | 2022-08-09 | 雅安君禾铜业有限公司 | Wire pressing device for copper wire strands |
-
2022
- 2022-10-08 CN CN202211221066.4A patent/CN115649789B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT219232B (en) * | 1959-06-25 | 1962-01-10 | Seppeler Stiftung Fuer Flug Un | Safety device on hydraulically or pneumatically operated lifting rams for lifting platforms etc. like |
| CN101358620A (en) * | 2007-07-30 | 2009-02-04 | 斯奈克玛动力部件公司 | Thermostructural composite roller |
| DE202009009806U1 (en) * | 2009-07-17 | 2009-09-10 | Interroll Holding Ag | Conveyor roller with improved smoothness |
| CN104755256A (en) * | 2012-10-22 | 2015-07-01 | 李赛克奥地利有限公司 | Device for laminating plate-shaped articles |
| CN105414260A (en) * | 2016-01-09 | 2016-03-23 | 长春机械科学研究院有限公司 | Shaft-distance-adjustable hydraulic floating roller driving device |
| CN107445462A (en) * | 2017-09-07 | 2017-12-08 | 成都中光电科技有限公司 | A kind of driven split carry-over pinch rolls floating installation of TFT LCD liquid-crystalline glasses |
| CN114786895A (en) * | 2019-09-10 | 2022-07-22 | 博浩特股份公司 | Punch for punching labels and lids |
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| CN217157824U (en) * | 2022-04-20 | 2022-08-09 | 雅安君禾铜业有限公司 | Wire pressing device for copper wire strands |
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| CN115649789A (en) | 2023-01-31 |
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