CN112643434A - Medium-density fiberboard double-side polishing device and working method thereof - Google Patents
Medium-density fiberboard double-side polishing device and working method thereof Download PDFInfo
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- CN112643434A CN112643434A CN202011527801.5A CN202011527801A CN112643434A CN 112643434 A CN112643434 A CN 112643434A CN 202011527801 A CN202011527801 A CN 202011527801A CN 112643434 A CN112643434 A CN 112643434A
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- roller
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
- B24B7/28—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding wood
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a double-sided polishing device for a medium-density fiberboard, which comprises a base, a feeding device, a polishing workbench, a discharging device, double-sided polishing assemblies, a board limiting device and a board cleaning device, wherein the polishing workbench is arranged in the middle of the base in parallel, the feeding device and the discharging device are arranged on the base and are respectively positioned on two sides of the polishing workbench, the double-sided polishing assemblies are arranged on the polishing workbench, the board cleaning device is arranged above the workbench, and the board limiting device is arranged on the base and is positioned on two sides of the double-sided polishing assemblies. The automatic feeding and discharging device can realize automatic feeding and automatic discharging of plates, the plates are conveyed to the polishing working table and polished on two sides by the double-side polishing assembly, the working efficiency is high, manpower is saved, the plates polished by the double-side polishing assembly are cleaned in real time by the plate cleaning device, dust accumulation is reduced, and the cleanness of the surrounding environment is kept.
Description
Technical Field
The invention relates to the technical field of wood processing, in particular to a double-side polishing device for a medium-density fiberboard.
Background
The medium-density fibre board is made up of wood or plant fibres through mechanical separation and chemical treatment, addition of adhesive and water-proofing agent, and high-temp and-pressure shaping. The medium density fiberboard has a more uniform structure than natural wood, avoids the problems of decay, worm damage and the like, and has small expansibility and convenient processing. Because the surface of the medium-density fiber board is flat, various decorative surfaces are easy to stick, and the finished furniture is more beautiful. The bending strength and the impact strength are both superior to those of a shaving board.
The medium-density fiberboard needs to be polished by a special polishing device during later processing, but the conventional polishing device can only polish a single surface when in use, so that the efficiency is reduced, and a large amount of manpower and material resources are wasted.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a double-side grinding device for a medium-density fiberboard and a working method thereof.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a two-sided grinding device of medium density fiberboard, the on-line screen storage device comprises a base, material feeding unit, the workstation of polishing, discharging device, two-sided subassembly of polishing, panel stop device and panel cleaning device, workstation parallel arrangement of polishing is in the middle of the base, material feeding unit and discharging device set up on the base, and be located the both sides of workstation of polishing respectively, two-sided subassembly of polishing sets up on the workstation of polishing, panel cleaning device sets up the top of workstation, panel stop device sets up on the base, and be located the both sides of two-sided subassembly of polishing.
Further, two-sided grinding assembly includes mount, lift cylinder one, goes up grinding motor, goes up the sanding roller, grinding motor, lower grinding roller down, on grinding roller imbeds grinding table down, is connected with the lower grinding motor who sets up on grinding table, go up the sanding roller through the fixing base of polishing and install on lift cylinder one's telescopic link, and be located under grinding roller directly over, go up the sanding roller and stretch out and install the last grinding motor who polishes in the outside of fixing base after the fixing base and connect.
Furthermore, the lower part of the polishing workbench, which is positioned on the lower polishing sand roller, is provided with a dust collecting port, and a dust collecting tank is arranged below the dust collecting port.
Further, panel stop device includes second lift cylinder, compresses tightly frame and gyro wheel, second lift cylinder is installed on the fixing base of polishing, compresses tightly the frame and installs the lower extreme at second lift cylinder, and the gyro wheel is installed the lower extreme that compresses tightly the frame.
Further, panel cleaning device includes air exhauster, cleaning brush, tuber pipe one, tuber pipe two, cavity brush fixing base, lift cylinder three and dust bag, and the air exhauster passes through the support frame setting in discharging device's top, three settings of lift cylinder are on the support frame, and the telescopic link of lift cylinder three is connected with cavity brush fixing base, cleaning brush passes through the cavity brush fixing base and is connected with the one end of tuber pipe one, and the other end and the air exhauster of tuber pipe one are connected, the dust bag sets up on the support frame, and is connected with the air exhauster through tuber pipe two.
Further, a damping rubber pad is arranged between the polishing workbench and the base.
Furthermore, the feeding device and the discharging device have the same structure and respectively comprise a conveying frame, a driving mechanism, a driving roller, a driven roller, a supporting roller and a traction conveyer belt, wherein the driving roller, the driven roller and the supporting roller are arranged on a conveying bracket through a supporting seat, and the traction conveyer belt is sleeved on the outer walls of the driving roller, the driven roller and the supporting roller; the driving mechanism comprises a conveying motor and a transmission assembly, the conveying motor is installed on the conveying frame, the conveying motor is connected with a rotating shaft of the driving roller, and the transmission assembly is respectively located at two axial ends of the driving roller, the driven roller and the supporting roller.
Further, the transmission assembly comprises a driving gear, a driven gear and a transmission chain, the driving gear is sleeved on a rotating shaft of the driving roller, the driven gear is sleeved on rotating shafts of the driven roller and the supporting roller, and the driving gear is connected with the driven gear through the transmission chain.
The working method of the medium-density fiberboard double-side polishing device comprises the following specific working methods:
(1) placing a medium-density fiberboard to be polished on a feeding device;
(2) the feeding device conveys the medium-density fiberboard to a polishing workbench, and the lifting cylinder I
Driving the upper grinding roller to move downwards until the upper grinding roller is matched with the medium-density fiberboard;
(3) plate limiting device for plates positioned on two sides of upper polishing roller and lower polishing roller
The material is limited, so that the material is prevented from deviating;
(4) starting a grinding motor, and aligning the medium density fiberboard by an upper grinding roller and a lower grinding roller
Polishing the reverse sides simultaneously;
(5) the lifting cylinder drives the cleaning brush to descend until the cleaning brush
The dust collector is abutted against the plate, the powder attached to the surface of the plate is cleaned along with the movement of the plate, and the exhaust fan absorbs the dust on the inner side of the cleaning brush into the dust collecting bag through the first air pipe and the second air pipe;
(6) and (5) delivering the polished plates out through a discharging device.
The invention has the technical effects and advantages that:
according to the double-side polishing device for the medium-density fiberboard, automatic feeding and automatic discharging of the board can be realized, the board is conveyed to the polishing work table and polished on two sides by the double-side polishing assembly, the working efficiency is high, manpower is saved, the board polished by the double-side polishing assembly is cleaned in real time by the board cleaning device, dust accumulation is reduced, and the cleanness of the surrounding environment is kept.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a double-sided sanding assembly of the present invention;
FIG. 3 is a schematic structural diagram of the plate cleaning device of the present invention;
fig. 4 is a schematic structural diagram of the feeding device of the present invention.
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.
As shown in fig. 1-4, a double-sided polishing device for medium density fiberboard comprises a base 1, a feeding device 2, a polishing workbench 3, a discharging device 4, a double-sided polishing assembly 5, a board limiting device 6 and a board cleaning device 7, wherein the polishing workbench 3 is arranged in the middle of the base 1 in parallel, the feeding device 2 and the discharging device 4 are arranged on the base 1 and are respectively positioned at two sides of the polishing workbench 3, the double-sided polishing assembly 5 is arranged on the polishing workbench, the board cleaning device 7 is arranged above the workbench, and the board limiting device 6 is arranged on the base 1 and is positioned at two sides of the double-sided polishing assembly 5.
In this embodiment the two-sided grinding component 5 includes mount 51, a lift cylinder 52, goes up grinding motor, goes up grinding roller 54, lower grinding motor, lower grinding roller 56 is embedded into grinding table 3 on, is connected with the lower grinding motor who sets up on grinding table 3, go up grinding roller 54 and install on lift cylinder 52's telescopic link through fixing base 57 of polishing, and be located grinding roller 56 directly over down, go up grinding roller 54 and stretch out and install the last grinding motor who polishes the outside of fixing base 57 after fixing base 57 is connected.
In this embodiment the below that workstation 3 of polishing is located the lower sanding roller of polishing is equipped with dust and collects mouth 31, the below that mouth 31 was collected to the dust sets up dust collecting tank 8.
In this embodiment, the plate limiting device 6 includes a second lifting cylinder 61, a pressing frame 62 and a roller 63, the second lifting cylinder 61 is installed on the polishing fixing seat 57, the pressing frame 62 is installed at the lower end of the second lifting cylinder 61, and the roller 63 is installed at the lower end of the pressing frame 62.
In this embodiment, the plate cleaning device 7 includes an exhaust fan 71, a cleaning brush 72, a first air pipe 73, a second air pipe 74, a hollow brush fixing seat 75, a third lifting cylinder 76 and a dust collection bag 77, the exhaust fan 71 is disposed above the discharging device 4 through a supporting frame 78, the third lifting cylinder 76 is disposed on the supporting frame 78, an expansion link of the third lifting cylinder 76 is connected with the hollow brush fixing seat 75, the cleaning brush 72 is connected with one end of the first air pipe 73 through the hollow brush fixing seat 75, the other end of the first air pipe 73 is connected with the exhaust fan 71, the dust collection bag 77 is disposed on the supporting frame 78 and is connected with the exhaust fan through the second air pipe 74.
In this embodiment, a damping rubber pad is arranged between the polishing worktable 3 and the base 1.
In this embodiment, the feeding device 2 and the discharging device 4 have the same structure, and both include a conveying frame 21, a driving mechanism 22, a driving roller 23, a driven roller 24, a supporting roller 25 and a traction conveyer belt 26, wherein the driving roller 23, the driven roller 24 and the supporting roller 25 are mounted on the conveying support 21 through a supporting seat 27, and the traction conveyer belt 26 is sleeved on the outer walls of the driving roller 23, the driven roller 24 and the supporting roller 25; the driving mechanism 22 comprises a conveying motor 221 and a transmission assembly 222, the conveying motor 221 is installed on the conveying frame 21, the conveying motor 221 is connected with a rotating shaft of the driving roller 23, and the transmission assembly 222 is respectively located at two axial ends of the driving roller 23, the driven roller 24 and the supporting roller 25.
In this embodiment, the transmission assembly 222 includes a driving gear 223, a driven gear 224 and a transmission chain 225, the driving gear 223 is sleeved on the rotating shaft of the driving roller 23, the driven gear 224 is sleeved on the rotating shafts of the driven roller 24 and the supporting roller 25, and the driving gear 223 and the driven gear 224 are connected through the transmission chain 225.
The working method of the medium-density fiberboard double-side polishing device comprises the following specific working methods:
(1) placing the medium-density fiberboard to be polished on the feeding device 2;
(2) the feeding device sends the medium-density fiberboard to the polishing workbench 3, and the lifting cylinder I52
Driving the upper grinding roller 54 to move downwards until the upper grinding roller is matched with the medium-density fiberboard;
(3) the plate limiting device 6 is positioned on two sides of the upper grinding roller 54 and the lower grinding roller 56
The plate is limited, so that the plate is prevented from deviating;
(4) starting the grinding motor, centering the high density fiberboard by the upper grinding roller 54 and the lower grinding roller 56
Polishing the reverse sides simultaneously;
(5) the lifting cylinder III 76 drives the cleaning brush 72 to descend until the cleaning brush 72 and the plate
The materials are abutted, the powder attached to the surface of the plate is cleaned along with the movement of the plate, and the exhaust fan 71 absorbs the dust on the inner side of the cleaning brush 72 into the dust collection bag 77 through the first air pipe 73 and the second air pipe 74;
(6) and the polished plate is sent out through a discharging device 4.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the present invention is not limited to the above preferred embodiments, but rather, any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a two-sided grinding device of medium density fiberboard which characterized in that: the automatic plate polishing machine comprises a base (1), a feeding device (2), a polishing workbench (3), a discharging device (4), a double-sided polishing assembly (5), a plate limiting device (6) and a plate cleaning device (7), wherein the polishing workbench (3) is arranged in the middle of the base (1) in parallel, the feeding device (2) and the discharging device (4) are arranged on the base (1) and are respectively positioned on two sides of the polishing workbench (3), the double-sided polishing assembly (5) is arranged on the polishing workbench, the plate cleaning device (7) is arranged above the workbench, the plate limiting device (6) is arranged on the base (1) and is positioned on two sides of the double-sided polishing assembly (5).
2. The double-sided sanding device for medium-density fiberboard of claim 1, wherein: two-sided subassembly (5) of polishing includes mount (51), lift cylinder (52), goes up grinding motor, goes up grinding sand roller (54), grinding motor down, grinding sand roller (56) are embedded into grinding table (3) down on, are connected with the lower grinding motor who sets up on grinding table (3), go up grinding sand roller (54) and install on the telescopic link of lift cylinder (52) through fixing base (57) of polishing, and lie in grinding sand roller (56) down directly over, go up grinding sand roller (54) and stretch out and install the last grinding motor who polishes in the outside of fixing base (57) after fixing base (57) of polishing and connect.
3. The double-sided sanding device for medium-density fiberboard of claim 1, wherein: the grinding workbench (3) is located below the lower grinding roller and is provided with a dust collecting port (31), and a dust collecting tank (8) is arranged below the dust collecting port (31).
4. The double-sided sanding device for medium-density fiberboard of claim 2, wherein: the plate limiting device (6) comprises a second lifting cylinder (61), a pressing frame (62) and a roller (63), the second lifting cylinder (61) is installed on the polishing fixing seat (57), the pressing frame (62) is installed at the lower end of the second lifting cylinder (61), and the roller (63) is installed at the lower end of the pressing frame (62).
5. The double-sided sanding device for medium-density fiberboard of claim 1, wherein: plate cleaning device (7) include air exhauster (71), cleaning brush (72), tuber pipe one (73), tuber pipe two (74), cavity brush fixing base (75), lift cylinder three (76) and dust bag (77), and air exhauster (71) set up the top in discharging device (4) through support frame (78), lift cylinder three (76) set up on support frame (78), and the telescopic link and the cavity brush fixing base (75) of lift cylinder three (76) are connected, cleaning brush (72) are connected with the one end of tuber pipe one (73) through cavity brush fixing base (75), and the other end and air exhauster (71) of tuber pipe one (73) are connected, dust bag (77) set up on support frame (78), and are connected with the air exhauster through tuber pipe two (74).
6. The double-sided sanding device for medium-density fiberboard of claim 1, wherein: a damping rubber pad is arranged between the polishing workbench (3) and the base (1).
7. The double-sided sanding device for medium-density fiberboard of claim 1, wherein: the feeding device (2) and the discharging device (4) are identical in structure and respectively comprise a conveying frame (21), a driving mechanism (22), a driving roller (23), a driven roller (24), a supporting roller (25) and a traction conveying belt (26), wherein the driving roller (23), the driven roller (24) and the supporting roller (25) are arranged on a conveying support (21) through a supporting seat (27), and the traction conveying belt (26) is sleeved on the outer walls of the driving roller (23), the driven roller (24) and the supporting roller (25); the driving mechanism (22) comprises a conveying motor (221) and a transmission assembly (222), the conveying motor (221) is installed on the conveying frame (21), the conveying motor (221) is connected with a rotating shaft of the driving roller (23), and the transmission assembly (222) is respectively located at two axial ends of the driving roller (23), the driven roller (24) and the supporting roller (25).
8. The double-sided sanding device for medium density fiberboard of claim 8, wherein: the transmission assembly (222) comprises a driving gear (223), a driven gear (224) and a transmission chain (225), the driving gear (223) is sleeved on a rotating shaft of the driving roller (23), the driven gear (224) is sleeved on rotating shafts of the driven roller (24) and the supporting roller (25), and the driving gear (223) is connected with the driven gear (224) through the transmission chain (225).
9. A method of operating a medium density fiberboard double-side sanding apparatus as defined in any one of claims 1-8, wherein: the specific working method comprises the following steps:
(1) placing the medium-density fiberboard to be polished on a feeding device (2);
(2) the feeding device sends the medium-density fiberboard to the polishing workbench (3), and the lifting cylinder I (52) drives the upper polishing roller (54) to move downwards until the medium-density fiberboard is fitted;
(3) the plate limiting device (6) limits the plates positioned on the two sides of the upper grinding roller (54) and the lower grinding roller (56) to prevent the plates from deviating;
(4) starting a grinding motor, and simultaneously grinding the front and back surfaces of the medium-density fiberboard by an upper grinding roller (54) and a lower grinding roller (56);
(5) the lifting cylinder III (76) drives the cleaning brush (72) to descend until the cleaning brush (72) is abutted against the plate, the powder attached to the surface of the plate is cleaned along with the movement of the plate, and the exhaust fan (71) absorbs the dust on the inner side of the cleaning brush (72) of the cleaning brush (6) into the dust collection bag (77) through the air pipe I (73) and the air pipe II (74);
(6) the polished plate is sent out through a discharging device (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011527801.5A CN112643434A (en) | 2020-12-22 | 2020-12-22 | Medium-density fiberboard double-side polishing device and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011527801.5A CN112643434A (en) | 2020-12-22 | 2020-12-22 | Medium-density fiberboard double-side polishing device and working method thereof |
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| CN112643434A true CN112643434A (en) | 2021-04-13 |
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| CN202011527801.5A Pending CN112643434A (en) | 2020-12-22 | 2020-12-22 | Medium-density fiberboard double-side polishing device and working method thereof |
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| CN113211273A (en) * | 2021-05-20 | 2021-08-06 | 青岛泰睿思微电子有限公司 | Equipment and method for removing glue overflow after semiconductor plastic packaging |
| CN113231907A (en) * | 2021-04-26 | 2021-08-10 | 山西建筑工程集团有限公司 | Outer wall hangs cement fiberboard conveying mechanism futilely |
| CN113442049A (en) * | 2021-08-30 | 2021-09-28 | 宁波考比锐特智能科技有限公司 | Automatic change panel burnishing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113231907A (en) * | 2021-04-26 | 2021-08-10 | 山西建筑工程集团有限公司 | Outer wall hangs cement fiberboard conveying mechanism futilely |
| CN113211273A (en) * | 2021-05-20 | 2021-08-06 | 青岛泰睿思微电子有限公司 | Equipment and method for removing glue overflow after semiconductor plastic packaging |
| CN113103099A (en) * | 2021-06-16 | 2021-07-13 | 广东德派克家居科技有限公司 | Full-automatic production system for producing household plates |
| CN113103099B (en) * | 2021-06-16 | 2021-08-31 | 广东德派克家居科技有限公司 | Full-automatic production system for producing household plates |
| CN113442049A (en) * | 2021-08-30 | 2021-09-28 | 宁波考比锐特智能科技有限公司 | Automatic change panel burnishing device |
| CN113894629A (en) * | 2021-11-22 | 2022-01-07 | 北京新风航天装备有限公司 | Dull and stereotyped surface grinding device |
| CN114260769A (en) * | 2021-11-24 | 2022-04-01 | 江苏罗科雷森建筑材料科技有限公司 | Surface polishing equipment for fireproof insulation board of outer wall |
| CN114905355A (en) * | 2022-07-18 | 2022-08-16 | 江苏中岦绿建建材科技有限公司 | Polishing equipment for manufacturing color steel |
| CN115008313A (en) * | 2022-08-03 | 2022-09-06 | 徐州国研新材料科技有限公司 | Old and useless metal sheet frock of polishing |
| CN115246094A (en) * | 2022-09-22 | 2022-10-28 | 捷浩欣工业机械(昆山)有限公司 | Upper-lower integrated double-faced hammer slag polishing equipment |
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