CN113020725A - Scrap removing device for bolt production - Google Patents
Scrap removing device for bolt production Download PDFInfo
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- CN113020725A CN113020725A CN202110291209.8A CN202110291209A CN113020725A CN 113020725 A CN113020725 A CN 113020725A CN 202110291209 A CN202110291209 A CN 202110291209A CN 113020725 A CN113020725 A CN 113020725A
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- bolt
- portal frame
- centre gripping
- bellows
- removing device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G9/00—Working screws, bolt heads, or nuts in conjunction with thread cutting, e.g. slotting screw heads or shanks, removing burrs from screw heads or shanks; Finishing, e.g. polishing, any screw-thread
- B23G9/009—Thread cleaning or repairing
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Abstract
The utility model relates to a bolt production is with removing bits device relates to the technical field of valve production, and it includes that the workstation sets up the mounting bracket on the workstation, is provided with upper end open-ended portal frame on the mounting bracket, and horizontal slip is provided with two support frames on the portal frame, and the difference horizontal rotation is provided with the centre gripping post on two support frames, is provided with on the portal frame to be used for driving two support frames and is close to each other or keep away from actuating mechanism, is provided with on the mounting bracket to be used for driving two synchronous different direction pivoted control mechanism of centre gripping post. Carry out the centre gripping through two centre gripping posts to the bolt fixed, then drive the bolt rotation jointly through two centre gripping posts of control mechanism drive again to make dust or iron fillings on bolt surface can break away from the bolt under the effect of centrifugal force, and then realize removing bits and dust removal operation fast of bolt, this design can effectively reduce producers' work burden, can also improve bolt production efficiency.
Description
Technical Field
The application relates to the field of bolt production, especially, relate to a bolt production is with removing bits device.
Background
The bolt is a cylindrical threaded fastener matched with a nut, and the fastener is composed of a head part and a screw rod and needs to be matched with the nut for fastening and connecting two parts with through holes.
When bolts in the related art are produced and machined, a feeding mechanism is generally required to convey a bar material to a lathe, then the bar material is machined through the lathe, and then a collecting mechanism is used for collecting the machined bolts in a unified manner. And then, manually cleaning scrap iron or dust on the bolt, thereby realizing the production and processing of the bolt.
Aiming at the related technology, the iron chips or dust on the surface of the bolt are manually cleaned, so that the defect of increasing the workload of production personnel exists, and the improvement is needed.
Disclosure of Invention
In order to reduce production personnel's work burden, this application provides a bolt production is with removing bits device.
The application provides a bolt production is with removing bits device adopts following technical scheme:
the utility model provides a bolt production is with removing bits device, including the workstation set up in mounting bracket on the workstation, be provided with upper end open-ended portal frame on the mounting bracket, the portal frame is gone up horizontal slip and is provided with two support frames, two respectively horizontal rotation is provided with the centre gripping post on the support frame, be provided with on the portal frame and be used for driving two the actuating mechanism that the support frame is close to each other or keeps away from, be provided with on the mounting bracket and be used for driving two synchronous incorgruous pivoted control mechanism of centre gripping post.
Through adopting above-mentioned technical scheme, it is fixed to carry out the centre gripping through two centre gripping posts to the bolt, then drives the bolt rotation through two centre gripping posts of control mechanism drive jointly again to make the dust or the iron fillings on bolt surface can break away from the bolt under the effect of centrifugal force, and then realize removing bits fast and the operation of removing dust of bolt. This design need not the manual work and clears up the bolt, can effectively reduce producers' work burden, can also improve bolt production efficiency. Simultaneously, two centre gripping posts can carry out the centre gripping to the bolt of different diameters or size fixed to improve the use suitability of removing the bits device.
Optionally, the driving mechanism includes a forward and reverse rotation motor arranged on the gantry and a bidirectional screw rod horizontally connected to an output shaft of the forward and reverse rotation motor, and two ends of the bidirectional screw rod respectively penetrate through the corresponding support frames and form a threaded fit with the support frames.
Through adopting above-mentioned technical scheme, rotate through two-way lead screw of just reversing motor drive, then two-way lead screw can drive two support frames and be close to each other or keep away from to make two centre gripping posts be close to each other or keep away from. Through setting up simple structure, simple operation, the stable actuating mechanism of drive effect, realize the quick motion of two support frames and two centre gripping posts to realize the quick centre gripping of bolt or relax, and then further improve the work efficiency when removing the bits or removing dust the operation to the bolt.
Optionally, the portal frame is horizontally slidably arranged on the mounting frame, a driving piece used for driving the portal frame to move is arranged on the workbench, two mechanical arms are arranged on the workbench, the mounting frame is located between the two mechanical arms, and each mechanical arm is provided with a pneumatic clamping jaw.
Through adopting above-mentioned technical scheme for this remove bits device can place between the lathe in bolt production facility and the collection mechanism, and after the lathe carried out thread machining to the bar, one of them arm and corresponding pneumatic clamping jaw can snatch the bolt of accomplishing thread machining to between two centre gripping posts, thereby realize the automatic material loading operation of bolt chip removal operation. After the bolt finishes the chip removing operation, the other mechanical arm and the corresponding pneumatic clamping jaw can grab the bolt finishing the chip removing operation to the collecting mechanism, so that the automatic unloading operation of the chip removing operation is realized. This design makes except that bits device can use with bolt production facility supporting, can improve the practicality, can improve bolt production efficiency again.
Meanwhile, the design enables the bolt to move from the lathe to the collecting mechanism, so that the chip removing and dust removing operations can be completed, and the production efficiency of the bolt is further improved. Simultaneously, this chip removal device also can be used to the feeding mechanism of bolt production facility to make the bar also can remove dust and remove the bits operation before getting into the lathe, and then improve the multi-purpose of removing the chip device. Because the portal frame can carry out horizontal slip to make this remove bits device can the longer production line of the adaptation line body, and then improve the practicality.
Optionally, the control mechanism includes a gear disposed on each of the clamping columns and two racks disposed on the mounting rack, and the two racks are disposed along the movement direction of the gantry and are engaged with the corresponding gears respectively.
By adopting the technical scheme, when the portal frame drives the two support frames, the two clamping columns and the two gears to move, the gears drive the corresponding clamping columns to rotate under the action of the corresponding racks, and then the two clamping columns can drive the bolts to rotate together. Through setting up simple structure, the stable control mechanism of drive effect, realize the quick steady rotation of centre gripping post to realize the quick rotation of bolt. This design makes the dust or the iron fillings on bolt surface can break away from fast to effectively improve the work efficiency and the clean stability of removing bits or dust operation. Meanwhile, the control mechanism is ingenious in design, and in the process of movement of components such as a portal frame, automatic rotation of the clamping column can be achieved, the driving source of the clamping column can be saved, the resource utilization efficiency can be improved, and the linkage between the components can be improved.
Optionally, two be provided with bellows on the support frame respectively, two the one end that the centre gripping post was kept away from each other runs through respectively to corresponding the inside of bellows, two the centre gripping post is located correspondingly one end in the bellows is provided with the pump impeller respectively, two one side that the bellows is close to each other is connected with the nozzle respectively, two be connected with the air-supply line on the bellows respectively, every all be provided with first solenoid valve on the air-supply line.
Through adopting above-mentioned technical scheme, when first solenoid valve opens and the centre gripping post rotates, corresponding pump impeller synchronous rotation, at this moment, form the negative pressure in the bellows and make external air enter into the bellows through the air-supply line. The air in the bellows is then ejected through the corresponding nozzles and blows against the bolts, so that the bolts are cleaned by flushing. This design can make the dust or the iron fillings on bolt surface fully drop, and then improves the clean effect of bolt. Meanwhile, the pump wheel can be driven to rotate by the rotation of the clamping column, so that a driving source can be saved, and the linkage between each part can be improved.
Optionally, two be provided with upper end open-ended bin on the bellows respectively, the bin is with corresponding bellows is through advancing oil pipe intercommunication, it is provided with the second solenoid valve on the oil pipe to advance.
By adopting the technical scheme, when the anti-rust oil needs to be sprayed on the surface of the bolt, the anti-rust oil is injected into the storage tank, then the first electromagnetic valve is closed, and the second electromagnetic valve is opened. When the clamping columns drive the corresponding pump wheels to rotate, the rust-proof oil in the storage box can enter the air box and is sprayed out through the nozzles, so that the automatic spraying operation of the rust-proof oil is realized, and the production efficiency is improved. Meanwhile, the nozzle can blow and wash the bolt and can also perform antirust oil spraying operation, so that the nozzle is multipurpose. Meanwhile, the design can improve the linkage matching property between each part and can realize the reasonable application of each part, thereby improving the practicability.
Optionally, a plurality of fans are arranged at the upper end of the mounting rack along the sliding direction of the portal frame.
Through adopting above-mentioned technical scheme, blow through the both ends that utilize the fan to the bolt to the cooperation nozzle is to the blowing of bolt, realizes the all-round cleanness of blowing of bolt, is showing the clean effect that promotes the bolt.
Optionally, one end of each of the two clamping columns, which is close to each other, is provided with an arched clamping surface, and the concave surfaces of the two clamping surfaces are opposite.
Through adopting above-mentioned technical scheme, through setting up the clamping face for the lateral wall of centre gripping post and bolt is laminated more, thereby improves the clamping-force of centre gripping post to the bolt. Meanwhile, the design can increase the contact area of the bolt and the clamping column, and further improve the clamping stability of the clamping column to the bolt. Effectively reduce the risk that the bolt breaks away from in two centre gripping posts, can improve the stability in use, can improve the safety in utilization again.
Optionally, an elastic cushion pad is arranged on the clamping surface.
Through adopting above-mentioned technical scheme, through setting up the blotter, avoid centre gripping post fish tail bolt to improve the product percent of pass.
In summary, the present application includes at least one of the following beneficial technical effects:
the bolt is clamped and fixed through the two clamping columns, and then the two clamping columns are driven by the control mechanism to jointly drive the bolt to rotate, so that dust or scrap iron on the surface of the bolt can be separated from the bolt under the action of centrifugal force, and further, the bolt can be quickly subjected to scrap removal and dust removal operation, the workload of production personnel can be effectively reduced, and the production efficiency of the bolt can be improved;
through the arrangement of the control mechanism with simple structure and stable driving effect, the clamping column can rotate quickly and stably, so that the bolt can rotate quickly, dust or scrap iron on the surface of the bolt can be separated quickly, and the working efficiency and the cleaning stability of the scrap removing or dust removing operation are improved effectively;
blow and wash the cleanness through utilizing nozzle spun air to the bolt to make the dust or the iron fillings on bolt surface fully drop, and then improve the clean effect of bolt.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a schematic view of the internal structure of the mounting frame in the embodiment of the present application.
Fig. 3 is a schematic structural diagram of a gantry in an embodiment of the present application.
Fig. 4 is an enlarged schematic view of the region a in fig. 3.
Fig. 5 is an enlarged schematic view of the region B in fig. 2.
Description of reference numerals: 1. a work table; 2. a mechanical arm; 3. a pneumatic clamping jaw; 4. a mounting frame; 5. a gantry; 6. an electric push rod; 7. a support frame; 8. a clamping post; 9. a drive mechanism; 91. a positive and negative rotation motor; 92. a bidirectional screw rod; 10. a clamping surface; 11. a cushion pad; 12. a control mechanism; 121. a rack; 122. a gear; 13. a fan; 14. an air box; 15. an air inlet pipe; 16. a first solenoid valve; 17. a nozzle; 18. a pump impeller; 19. a storage tank; 20. an oil inlet pipe; 21. a second solenoid valve; 22. and a controller.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses bolt production is with removing bits device. Referring to fig. 1, the scrap removing device for bolt production comprises a workbench 1, mechanical arms 2 are arranged at two ends of the workbench 1 respectively, and the end parts of the two mechanical arms 2 are connected with pneumatic clamping jaws 3 respectively, so that bar materials or bolts can be grabbed and transported.
Referring to fig. 1 and 2, a mounting frame 4 between the two robot arms 2 is fixedly connected to an upper end of the table 1, and a gantry 5 having an open upper end is horizontally slidably connected to an inner side of the mounting frame 4. A driving member for driving the gantry 5 to move horizontally is provided on the table 1 so that the gantry 5 can move from the position of one of the robot arms 2 to the position of the other robot arm 2. The driving piece is electric putter 6 of fixed connection in workstation 1 upper end to electric putter 6's flexible end and portal frame 5 fixed connection, thereby provide stable drive power for the horizontal motion of portal frame 5.
Referring to fig. 3 and 4, two support frames 7 are horizontally slidably connected to the inner wall of the lower end of the gantry 5, and the two support frames 7 are used to approach or depart from each other. The two support frames 7 are respectively connected with clamping columns 8 in a horizontal rotating mode, and the portal frame 5 is provided with a driving mechanism 9 used for driving the two support frames 7 to be close to or far away from each other, so that the two clamping columns 8 can clamp and fix bars or bolts together.
Referring to fig. 3 and 4, the ends of the two clamping columns 8 close to each other are respectively and integrally formed with an arched clamping surface 10, and the concave surfaces of the two clamping surfaces 10 are opposite to each other, so as to improve the fitting degree of the clamping columns 8 to bolts or bars. Meanwhile, the two clamping surfaces 10 are respectively and fixedly bonded with a cushion pad 11 made of rubber material, so as to protect the bolt or the bar.
Referring to fig. 3 and 4, the driving mechanism 9 includes a forward and reverse rotation motor 91 fixedly connected to the inner wall of the lower end of the gantry 5, and a bidirectional screw 92 is horizontally and fixedly connected to an output shaft of the forward and reverse rotation motor 91. Meanwhile, two ends of the bidirectional screw 92 respectively penetrate through the corresponding support frames 7 and form thread fit with the corresponding support frames 7, so that when the forward and reverse rotation motor 91 drives the bidirectional screw 92 to rotate, the bidirectional screw 92 can drive the two support frames 7 to approach or separate from each other.
Referring to fig. 2 and 4, the mounting frame 4 is provided with a control mechanism 12 for driving the two clamping columns 8 to rotate synchronously and in different directions, so that the two clamping columns 8 can drive the bar or the bolt to rotate together, and the dust on the surface of the bar or the bolt can rapidly separate from the iron chips.
Referring to fig. 1 and 2, a plurality of fans 13 are uniformly and fixedly connected to the inner wall of the upper end of the mounting frame 4 along the sliding direction of the gantry 5, so that when a bar or bolt mirror passes through the fans 13, the fans 13 can perform purging cleaning on the bar or bolt.
Referring to fig. 4 and 5, the control mechanism 12 includes two racks 121 fixedly connected to the inner wall of the upper end of the mounting frame 4, and the two racks 121 are parallel to each other and arranged along the moving direction of the gantry 5. The two clamping columns 8 are respectively fixedly sleeved with a gear 122, the two racks 121 correspond to the two gears 122 one by one, and the two racks 121 are respectively meshed with the corresponding gears 122.
When the portal frame 5 drives the two support frames 7, the two clamping columns 8 and the two gears 122 to perform horizontal movement, the gears 122 drive the corresponding clamping columns 8 to rotate under the action of the corresponding racks 121, and then the two clamping columns 8 can drive the bolt or the bar to rotate together, so that dust or iron chips on the surface of the bolt or the bar fall off.
Referring to fig. 3 and 4, the upper ends of the two support frames 7 are fixedly connected with air boxes 14 having hollow interiors, respectively, and the two clamping columns 8 are located between the two air boxes 14. The sides of the two air boxes 14 far away from each other are respectively connected with an air inlet pipe 15, and each air inlet pipe 15 is provided with a first electromagnetic valve 16 to realize the control of the opening and closing of the air inlet pipe 15. Nozzles 17 are connected to the sides of the two bellows 14 adjacent to each other, and the gas ejected from the nozzles 17 is used to blow the bolts or bars to perform purge cleaning of the bolts or bars.
Referring to fig. 3 and 4, the ends of the two clamping columns 8 that are away from each other respectively penetrate into the interior of the corresponding bellows 14, and the clamping columns 8 are in rotational connection with the corresponding bellows 14 via a sealing bearing. Meanwhile, one ends of the two clamping columns 8, which are positioned in the corresponding air boxes 14, are respectively and fixedly sleeved with pump wheels 18. When the clamping columns 8 drive the corresponding pump wheels 18 to rotate, negative pressure is formed in the air box 14, so that outside air can enter the air box 14 through the air inlet pipe 15 and then is sprayed out through the nozzles 17.
Referring to fig. 3 and 4, storage tanks 19 having open upper ends are fixedly connected to upper ends of the two wind boxes 14, respectively, to store rust preventive oil. The storage tank 19 is communicated with the corresponding air box 14 through an oil inlet pipe 20, and a second electromagnetic valve 21 is arranged on the oil inlet pipe 20 to realize the control of the opening and closing of the oil inlet pipe 20.
Referring to fig. 3 and 5, a controller 22 is disposed on an inner wall of the gantry 5, the two first electromagnetic valves 16 and the two second electromagnetic valves 21 are respectively connected to the controller 22, the controller 22 is configured to control the two first electromagnetic valves 16 or the two second electromagnetic valves 21 to be opened and closed simultaneously, and when the two first electromagnetic valves 16 are opened, the two second electromagnetic valves 21 are in a closed state.
The implementation principle of this application embodiment chip removal device for bolt production does: when chip removal of the bolt or bar is required, the two first solenoid valves 16 are opened by the controller 22, and the bolt or bar is then gripped between the two clamping columns 8 by one of the robotic arms 2 and the corresponding pneumatic gripper 3. Then, the bidirectional screw rod 92 is driven to rotate by the forward and reverse rotation motor 91, the two support frames 7 drive the corresponding clamping columns 8 to move, and then the two clamping columns 8 clamp and fix the bolt or the bar together.
Subsequently, the portal frame 5 is driven by the electric push rod 6 to drive the support frame 7, the clamping column 8, the bolt and other components to move, and at this time, the two gears 122 drive the corresponding clamping column 8 to rotate under the driving of the corresponding racks 121. Then, the two clamping columns 8 drive the bolt or the bar to rotate together, so that dust or scrap iron on the surface of the bolt or the bar falls off.
When the clamping cylinder 8 rotates, the corresponding pump wheel 18 rotates synchronously, so that a negative pressure is built up in the corresponding bellows 14. Subsequently, outside air enters the wind box 14 through the air inlet duct 15 and is ejected through the corresponding nozzles 17, and then the bolts or bars are purged and cleaned by the air ejected from the nozzles 17. When the portal frame 5 drives the support frame 7, the clamping column 8, the bolt and other components to move, the plurality of fans 13 can also blow and wash the bolt or the bar to clean the bolt or the bar sufficiently.
When the surface of the bolt needs to be sprayed with the rust preventive oil, the two second electromagnetic valves 21 are controlled to be opened by the controller 22, and the two first electromagnetic valves 16 are closed. When the clamping columns 8 drive the corresponding pump wheels 18 to rotate and negative pressure is generated in the corresponding air boxes 14, the rust preventive oil in the storage tank 19 can enter the corresponding air boxes 14 and then is sprayed out through the corresponding nozzles 17, so that the spraying operation of the rust preventive oil is realized.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a bolt production is with removing bits device which characterized in that: including workstation (1) set up in mounting bracket (4) on workstation (1), be provided with upper end open-ended portal frame (5) on mounting bracket (4), portal frame (5) are gone up horizontal slip and are provided with two support frames (7), two respectively horizontal rotation is provided with centre gripping post (8) on support frame (7), be provided with on portal frame (5) and be used for driving two actuating mechanism (9) that support frame (7) are close to each other or keep away from, be provided with on mounting bracket (4) and be used for driving two centre gripping post (8) are synchronous incorgruous pivoted control mechanism (12).
2. The chip removing device for bolt production according to claim 1, wherein: the driving mechanism (9) comprises a forward and reverse rotating motor (91) arranged on the portal frame (5) and a bidirectional screw rod (92) horizontally connected to an output shaft of the forward and reverse rotating motor (91), and two ends of the bidirectional screw rod (92) respectively penetrate through the corresponding support frames (7) and form threaded fit with the support frames (7).
3. The chip removing device for bolt production according to claim 1, wherein: portal frame (5) horizontal slip set up in on mounting bracket (4), be provided with on workstation (1) and be used for the drive the driving piece of portal frame (5) motion, be provided with two arms (2) on workstation (1), mounting bracket (4) are located two between arm (2), every all be provided with pneumatic clamping jaw (3) on arm (2).
4. The chip removing device for bolt production according to claim 3, wherein: the control mechanism (12) comprises a gear (122) arranged on each clamping column (8) and two racks (121) respectively arranged on the mounting rack (4), and the two racks (121) are respectively arranged along the movement direction of the portal frame (5) and are respectively meshed with the corresponding gears (122).
5. The chip removing device for bolt production according to claim 4, wherein: two be provided with bellows (14) on support frame (7) respectively, two the one end that centre gripping post (8) kept away from each other runs through respectively to corresponding the inside of bellows (14), two centre gripping post (8) are located correspondingly one end in bellows (14) is provided with pump impeller (18), two respectively one side that bellows (14) are close to each other is connected with nozzle (17) respectively, two be connected with air-supply line (15) on bellows (14) respectively, every all be provided with first solenoid valve (16) on air-supply line (15).
6. The chip removing device for bolt production according to claim 5, wherein: two be provided with upper end open-ended bin (19) on bellows (14) respectively, bin (19) and corresponding bellows (14) are through advancing oil pipe (20) intercommunication, be provided with second solenoid valve (21) on advancing oil pipe (20).
7. The chip removing device for bolt production according to claim 1, wherein: and a plurality of fans (13) are arranged at the upper end of the mounting rack (4) along the sliding direction of the portal frame (5).
8. The chip removing device for bolt production according to claim 1, wherein: one end of each clamping column (8) close to each other is provided with an arched clamping surface (10), and the concave surfaces of the two clamping surfaces (10) are opposite.
9. The chip removing device for bolt production according to claim 8, wherein: an elastic buffer pad (11) is arranged on the clamping surface (10).
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| CN202110291209.8A CN113020725B (en) | 2021-03-18 | 2021-03-18 | Scrap removing device for bolt production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110291209.8A CN113020725B (en) | 2021-03-18 | 2021-03-18 | Scrap removing device for bolt production |
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| CN113020725A true CN113020725A (en) | 2021-06-25 |
| CN113020725B CN113020725B (en) | 2022-03-01 |
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| CN108861679A (en) * | 2018-06-27 | 2018-11-23 | 新疆天池能源有限责任公司 | A kind of defeated coal gallery segmentation negative pressure dust removing device |
| CN108555675A (en) * | 2018-07-12 | 2018-09-21 | 重庆亨睿达机械有限公司 | Start axis turning debris removal equipment |
| CN108705160A (en) * | 2018-08-31 | 2018-10-26 | 宁波万盛智能科技股份有限公司 | The internal thread scrap-removing apparatus of transmission shaft and anti-dandruff method |
| CN109590825A (en) * | 2018-12-13 | 2019-04-09 | 佛山迪骏自动化科技有限公司 | Ceramic rod grinding device |
| CN109807088A (en) * | 2018-12-25 | 2019-05-28 | 深圳市山禾益通实业有限公司 | A kind of automatic brush dust equipment of battery pole piece |
| CN210079103U (en) * | 2019-01-24 | 2020-02-18 | 西安天盛混凝土有限公司 | Spray dust-settling device |
| CN110369813A (en) * | 2019-08-07 | 2019-10-25 | 东莞市翔飞智能装备科技有限公司 | It is a kind of with clamping structure can debris removal nut process equipment |
| CN211726796U (en) * | 2019-12-20 | 2020-10-23 | 黄冈职业技术学院 | Scrubbing device for environmental design |
| CN112046139A (en) * | 2020-09-15 | 2020-12-08 | 重庆佳利乐包装有限公司 | Corrugated board printing production line |
| CN214054718U (en) * | 2020-11-17 | 2021-08-27 | 宜昌市悦来光学仪器有限公司 | Burnishing device is used in processing of optical glass lens |
| CN112473296A (en) * | 2020-11-23 | 2021-03-12 | 南京伊都锦环保科技有限公司 | Oil smoke processing apparatus convenient to it is clean |
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