CN112676071B - Automatic paint spraying apparatus of steel pipe - Google Patents
Automatic paint spraying apparatus of steel pipe Download PDFInfo
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- CN112676071B CN112676071B CN202011455382.9A CN202011455382A CN112676071B CN 112676071 B CN112676071 B CN 112676071B CN 202011455382 A CN202011455382 A CN 202011455382A CN 112676071 B CN112676071 B CN 112676071B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses an automatic paint spraying device for a steel pipe, which relates to the technical field of steel pipe processing equipment and comprises a rack, a bearing frame horizontally erected on the rack, a first paint spraying assembly arranged above the rack and a second paint spraying assembly arranged on one side of the rack in the length direction; the first paint spraying assembly comprises a horizontal guide rail horizontally erected at the top of the factory building and a first automatic paint spraying unit movably arranged on the horizontal guide rail; the second subassembly that sprays paint is including fixed the second that sets up in frame length direction one side unit that sprays paint automatically, and the second is automatic to be sprayed paint the unit connection and is had a plurality of spray tubes that extend along frame length direction, and one side that the second was kept away from automatically to spray tubes each spray tube sprays paint the unit is provided with the shower nozzle. The automatic steel pipe paint spraying device provided by the invention has the advantages of stable work, convenience in operation, wide application range, capability of reducing the labor intensity, improving the working efficiency and greatly improving the paint spraying effect of steel pipes.
Description
Technical Field
The invention relates to the technical field of steel pipe processing equipment, in particular to an automatic paint spraying device for steel pipes.
Background
According to the use requirements of customers, after the steel pipe is machined and formed, the surface of the steel pipe is sometimes required to be painted, and most commonly, antirust paint is sprayed to improve the antirust effect of the steel pipe. Because the uniformity of the automatic paint spraying surface is difficult to guarantee, manufacturers often adopt a manual paint spraying mode to operate at present. However, manual painting is time-consuming and labor-consuming, and the painting operation of the inner wall of the steel pipe is difficult.
Disclosure of Invention
The invention aims to provide an automatic steel pipe paint spraying device, which utilizes a bearing frame, a first paint spraying assembly and a second paint spraying assembly to synchronously spray paint on the outer wall and the inner wall of each steel pipe, reduces the labor intensity, improves the working efficiency and greatly improves the paint spraying effect of the steel pipes.
The technical purpose of the invention is realized by the following technical scheme:
an automatic paint spraying device for steel pipes comprises a rack, a bearing frame horizontally erected on the rack, a first paint spraying assembly arranged above the rack and a second paint spraying assembly arranged on one side of the rack in the length direction;
the bearing frame is used for bearing a steel pipe to be painted and movably erected on the rack along the length direction of the rack;
the first paint spraying assembly is used for spraying paint on the outer wall of the steel pipe and comprises a horizontal guide rail horizontally erected at the top of a workshop and a first automatic paint spraying unit movably arranged on the horizontal guide rail, and the extending direction of the horizontal guide rail is perpendicular to the moving direction of the bearing frame;
the second subassembly that sprays paint for spray paint for the steel pipe inner wall, including fixed the second that sets up in frame length direction one side unit that sprays paint automatically, the second is automatic to be sprayed paint the unit connection and is had a plurality of spray tubes that extend along frame length direction, each one side that the second was kept away from to the spray tube is provided with the shower nozzle automatically.
By adopting the technical scheme, during work, workers firstly stack steel pipes to be painted on the bearing frame in order; after paint spraying is started, the bearing frame moves one step towards one side where the second paint spraying assembly is located, so that each spray pipe is inserted into each steel pipe respectively; then, the first automatic paint spraying unit gradually moves along the horizontal guide rail and gradually sprays paint on the outer wall of the steel pipe; meanwhile, each spray head starts to spray paint on the inner wall of the steel pipe; in the process, the workers can control the steel pipes to gradually rotate, and the local complete paint spraying is realized. After the complete partial paint spraying is finished, the bearing frame drives the steel pipes to move towards one side of the second paint spraying assembly again, and then the next paint spraying working cycle can be started. So, the operation of spraying paint is ended until the whole outer wall and the inner wall of steel pipe all spray paint and accomplish. Through this kind of mode, realize spraying paint in step to steel pipe outer wall and inner wall, not only labour saving and time saving, work efficiency is high, and the homogeneity of spraying paint is nimble controllable moreover.
The invention is further configured to: the supporting frame is symmetrically provided with a plurality of supporting rollers along the two sides of the length direction of the rack, and the supporting frame is further provided with a turnover driving assembly for driving the supporting rollers to synchronously rotate.
The invention is further configured to: a plurality of mounting seats which are in one-to-one correspondence with the supporting rollers are symmetrically arranged on the two sides of the bearing frame along the width direction of the rack, and the supporting rollers are respectively rotatably arranged on the corresponding mounting seats; the mounting seats are arranged on the bearing frame in a horizontal and smooth moving mode, the sliding direction of the mounting seats is perpendicular to the length direction of the rack, and the bearing frame is further provided with a plurality of fixing pieces used for detachably fixing the mounting seats respectively.
The invention is further configured to: any two supporting rollers symmetrically arranged along the length direction of the frame form a roller group; the overturning driving assembly comprises a power input assembly in transmission connection with one of the roller groups and a linkage assembly for linking each adjacent supporting roller; the linkage assembly comprises two synchronous chain wheels which are coaxially and fixedly arranged with the two adjacent supporting rollers respectively, a tensioning chain wheel which is arranged on the bearing frame in an up-down adjustable mode, and a synchronous chain which is sleeved on each chain wheel.
The invention is further configured to: two horizontal supports which are symmetrically arranged are arranged on two sides of the bearing frame along the length direction of the rack, and the horizontal supports are arranged on the bearing frame in an up-and-down adjustable manner; and each tensioning chain wheel on the same side is rotatably arranged on the horizontal bracket on the corresponding side.
The invention is further configured to: the elastic compression assembly comprises a telescopic rod, two ends of the telescopic rod are fixedly connected with the two adjacent mounting seats respectively, a compression spring is sleeved on the telescopic rod, and two ends of the compression spring abut against the two adjacent mounting seats respectively.
The invention is further configured to: each spray pipe is movably arranged in the length direction of the rack, and each rack is also provided with a pushing assembly used for driving each spray pipe.
The invention is further configured to: the spray pipe comprises a hard outer pipe movably erected on the rack along the length direction of the rack and a soft inner pipe arranged in the hard outer pipe in a penetrating manner; the nozzle is fixed at one end of the hard outer pipe, which is far away from the pushing assembly; and two ends of the soft inner pipe are respectively connected with the second automatic paint spraying unit and the corresponding spray head.
The invention is further configured to: the pushing assembly comprises a linkage seat fixedly connected with each hard outer pipe and a push-pull air cylinder horizontally and fixedly arranged on the rack, and a piston rod of the push-pull air cylinder faces the bearing frame and is fixedly connected with the linkage seat.
The invention is further configured to: one side of the frame, which is far away from the second paint spraying assembly, is sequentially provided with a drying area and a packing area, and the drying area is provided with a drying room.
In conclusion, the beneficial technical effects of the invention are as follows:
(1) the bearing frame is utilized to drive the steel pipe to move intermittently, and meanwhile, the first paint spraying assembly and the second paint spraying assembly respectively spray paint on the outer wall and the inner wall of the steel pipe automatically, so that the outer wall and the inner wall of the steel pipe can be synchronously sprayed with paint, the labor intensity is reduced, the working efficiency is improved, and the paint spraying effect of the steel pipe is greatly improved;
(2) the overturning driving assembly is utilized to drive each supporting roller to synchronously rotate, so that each steel pipe is driven to synchronously rotate, not only is manpower saved, but also comprehensive paint spraying of the outer wall and the inner wall of the steel pipe can be realized, and the paint spraying operation quality of the steel pipe can be further improved;
(3) utilize the promotion subassembly to promote each spray tube and remove along frame length direction, the operation of spraying paint of adaptable different length steel pipes effectively enlarges this paint spraying apparatus's application scope, and the practicality strengthens greatly.
Drawings
FIG. 1 is a top view of the overall structure of one embodiment of the present invention;
FIG. 2 is a schematic view of a carrier constructed in accordance with one embodiment of the present invention;
fig. 3 is a partially enlarged view of portion a of fig. 2, and is primarily intended to embody an elastic compression assembly.
Reference numerals: 1. a frame; 2. a carrier; 21. a chute; 3. a first paint spraying assembly; 31. a first automatic paint spraying unit; 32. a horizontal guide rail; 4. a second painting assembly; 41. a second automatic paint spraying unit; 42. a liquid separator; 43. a nozzle; 431. a hard outer tube; 432. a soft inner tube; 5. a packing area; 6. a drying zone; 7. supporting the rollers; 8. a mounting seat; 9. a linkage shaft; 10. turning over a driving motor; 11. a linkage assembly; 111. a synchronous sprocket; 112. a tension sprocket; 113. a synchronous chain; 12. a horizontal support; 13. a connecting rod; 14. a lifting cylinder; 15. a resilient compression assembly; 151. a telescopic rod; 152. a compression spring; 16. a pushing assembly; 161. a linkage seat; 162. push-pull cylinder.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying examples.
Referring to the attached figure 1, the automatic steel pipe paint spraying device comprises a rack 1 and a bearing frame 2 horizontally erected on the rack 1; the bearing frame 2 is used for bearing a steel pipe to be painted (the axial direction of the steel pipe is parallel to the length direction of the rack 1), the bottom of the bearing frame is in sliding fit with a sliding rail on the upper side of the rack 1 through a pulley, and meanwhile, the bearing frame automatically travels in the length direction of the rack 1 by means of a motor and a chain transmission mechanism.
A first paint spraying assembly 3 is arranged above the rack 1, and a second paint spraying assembly 4 is arranged on one side of the rack 1 in the length direction; the first paint spraying assembly 3 is mainly used for automatically spraying paint on the outer wall of the steel pipe, and the second paint spraying assembly 4 is mainly used for automatically spraying paint on the inner wall of the steel pipe. Meanwhile, a drying area 6 and a packing area 5 are sequentially arranged on one side of the frame 1, which is far away from the second paint spraying assembly 4; wherein, the drying room can be arranged at the drying area 6 and is used for drying the steel pipe.
In work, the bearing frame 2 drives the steel pipe to intermittently move towards the second paint spraying assembly 4; in the process, the first paint spraying assembly 3 and the second paint spraying assembly 4 respectively spray paint on the outer wall and the inner wall of the steel pipe section by section. After the paint spraying is finished, the steel pipes move to the drying room along with the bearing frame 2 to be dried, and the dried steel pipes can be packaged in the packaging area 5.
Referring to fig. 2, the bearing frame 2 is provided with a plurality of roller groups, and the roller groups are arranged at uniform intervals along the width direction of the frame 1. Specifically, taking any one of the roller groups as an example, the roller group includes two support rollers 7 symmetrically disposed on two opposite sides of the carrier 2, and the two support rollers 7 are respectively located on two sides of the carrier 2 along the length direction of the frame 1. Meanwhile, the bearing frame 2 is also provided with a turnover driving component for driving the supporting rollers 7 to synchronously rotate. In the work, a steel pipe is erected between any two adjacent roller groups; after the overturning driving assembly drives each roller group to start to operate, each roller group can drive each steel pipe to synchronously rotate through friction force.
In order to install the supporting rollers 7, two sliding grooves 21 extending along the width direction of the rack 1 are symmetrically arranged on two opposite sides of the bearing frame 2, a plurality of mounting seats 8 are arranged in the sliding grooves 21 in a horizontally moving mode, the mounting seats 8 and the supporting rollers 7 are arranged in a one-to-one correspondence mode, and the supporting rollers 7 are respectively rotatably arranged on the corresponding mounting seats 8. In order to ensure the synchronous movement of the supporting rollers 7 of the same roller group, a linkage shaft 9 can be horizontally erected between the two mounting seats 8 corresponding to the same roller group, and the two supporting rollers 7 are coaxially fixed on the linkage shaft 9. Meanwhile, after the mounting seats 8 are slidably adjusted, in order to ensure the stability of the mounting of the supporting rollers 7, the mounting seats 8 are provided with fixing pieces which can adopt common bolts and can detachably fix the corresponding mounting seats 8.
The overturning driving assembly comprises a power input assembly and a linkage assembly 11, the power input assembly is arranged on the bearing frame 2 and is in transmission connection with one of the linkage shafts 9, and the linkage assembly 11 is in transmission connection with each adjacent supporting roller 7 respectively. Specifically, the power input assembly comprises a turnover driving motor 10 fixedly arranged on the bearing frame 2, and the turnover driving motor 10 is in transmission connection with one of the linkage shafts 9 through a speed reducer.
Taking any two adjacent supporting rollers 7 on the same side as an example, the linkage assembly 11 includes two synchronous sprockets 111 coaxially fixed on two adjacent linkage shafts 9, a tension sprocket 112 disposed between the two adjacent synchronous sprockets 111, and a synchronous chain 113 sleeved on each sprocket. Specifically, the tension chain wheel 112 is arranged on the bearing frame 2 in an up-down adjustable manner; in order to realize the synchronous movement of each tension sprocket 112, the bearing frame 2 is provided with two horizontal brackets 12 symmetrically arranged along two sides of the length direction of the rack 1, the horizontal brackets 12 can be matched with the bearing frame 2 in a sliding way through sliding rails, and each tension sprocket 112 on the same side is rotatably arranged on the horizontal bracket 12 on the corresponding side, so that the synchronous up-and-down sliding of each tension sprocket 112 is realized. Meanwhile, in order to realize the synchronous lifting of the two horizontal supports 12, a plurality of connecting rods 13 can be fixedly connected between the two horizontal supports 12, and two lifting cylinders 14 are respectively arranged at two opposite sides of the top of the bearing frame 2, and the two lifting cylinders 14 are respectively fixedly connected with one connecting rod 13.
With reference to fig. 3, an elastic compression assembly 15 is further disposed between each adjacent mounting seat 8 on the same side; the elastic compression assembly 15 comprises an expansion link 151 horizontally erected between two adjacent mounting seats 8, and two ends of the expansion link 151 are fixedly connected with the two mounting seats 8 respectively; meanwhile, the telescopic rod 151 is further sleeved with a compression spring 152, and two ends of the compression spring 152 are respectively abutted to the two adjacent mounting seats 8. When the lifting cylinder 14 drives each tension sprocket 112 to synchronously lift through the horizontal bracket 12, each mounting seat 8 will synchronously slide along with the lifting cylinder, and the elastic compression assembly 15 can abut against two adjacent mounting seats 8, so as to ensure the stability of the mounting of each mounting seat 8 and the supporting roller 7.
Referring to fig. 1, the first paint spraying assembly 3 includes a horizontal guide rail 32 horizontally erected at the top of the factory building, the extending direction of the horizontal guide rail 32 is perpendicular to the length direction of the rack 1, and a first automatic paint spraying unit 31 is arranged on the horizontal guide rail 32; the first automatic paint spraying unit 31 includes a storage box, an air pump, a nozzle, and other components, and the specific structure thereof can refer to any existing automatic paint spraying machine, which is not described herein. During specific installation, the first automatic paint spraying unit 31 can horizontally slide on the horizontal guide rail 32 through a pulley, and can automatically travel on the horizontal guide rail 32 by matching with a motor and a belt transmission mechanism or a chain transmission mechanism.
The second paint spraying assembly 4 comprises a second automatic paint spraying unit 41 arranged on one side of the length direction of the rack 1, the structure of the second automatic paint spraying unit 41 is basically consistent with that of the first automatic paint spraying unit 31, and the second automatic paint spraying unit can be arranged on the rack 1 through a support fixing frame. However, the paint outlet of the second automatic paint spraying unit 41 is connected to a plurality of spray pipes 43 through the dispenser 42, each spray pipe 43 includes a hard outer pipe 431 slidably disposed on the rack 1 along the length direction of the rack 1, a spray head is fixed to one end of the hard outer pipe 431 close to the carrier 2, a soft inner pipe 432 is inserted into the hard outer pipe 431, one end of the soft inner pipe 432 is connected to the spray head, and the other end of the soft inner pipe 432 away from the spray head is connected to the dispenser 42.
In order to realize the synchronous movement of the hard outer pipes 431, one end of the hard outer pipe 431 far away from the spray head is provided with a linkage seat 161, and the linkage seat 161 is fixedly connected with each hard outer pipe 431. Meanwhile, a push-pull air cylinder 162 is arranged on one side of the linkage base 161 departing from the hard outer tube 431 of the frame 1, and a piston rod of the push-pull air cylinder 162 faces the bearing frame 2 and is fixedly connected with the linkage base 161. The push-pull air cylinder 162 and the linkage seat 161 jointly form the pushing assembly 16; when the push-pull cylinder 162 is activated, the push-pull cylinder 162 can drive each nozzle 43 to move synchronously along the length direction of the frame 1 through the linkage base 161.
The working principle of the embodiment is as follows: the workers stack the steel pipes to be painted on the bearing frame 2 orderly; after the painting is started, the carriage 2 moves one step towards the side of the second painting assembly 4, so that each spray pipe 43 is inserted into each steel pipe; subsequently, the first automatic paint spraying unit 31 gradually moves along the horizontal guide rail 32 and gradually sprays paint on the outer wall of the steel pipe; meanwhile, each spray head starts to spray paint on the inner wall of the steel pipe; in the process, the overturning driving assembly drives the steel pipes to gradually rotate through the supporting rollers 7, so that local complete paint spraying is realized. After the complete paint spraying is completed, the bearing frame 2 drives the steel pipes to move towards one side of the second paint spraying assembly 4 again by one step, and then the next paint spraying working cycle can be started. So, the operation of spraying paint is ended until the whole outer wall and the inner wall of steel pipe all spray paint and accomplish. Through this kind of mode, realize spraying paint in step to steel pipe outer wall and inner wall, not only labour saving and time saving, work efficiency is high, and the homogeneity of spraying paint is nimble controllable moreover.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (7)
1. The utility model provides an automatic paint spraying apparatus of steel pipe which characterized in that: the paint spraying device comprises a rack (1), a bearing frame (2) horizontally erected on the rack (1), a first paint spraying assembly (3) arranged above the rack (1) and a second paint spraying assembly (4) arranged on one side of the rack (1) in the length direction;
the steel pipe painting device comprises a bearing frame (2) used for bearing a steel pipe to be painted, wherein the bearing frame (2) is movably erected on a rack (1) along the length direction of the rack (1);
the first paint spraying assembly (3) is used for spraying paint on the outer wall of the steel pipe and comprises a horizontal guide rail (32) horizontally erected at the top of a factory building and a first automatic paint spraying unit (31) movably arranged on the horizontal guide rail (32), and the extending direction of the horizontal guide rail (32) is perpendicular to the moving direction of the bearing frame (2);
the second paint spraying assembly (4) is used for spraying paint on the inner wall of the steel pipe and comprises a second automatic paint spraying unit (41) fixedly arranged on one side of the length direction of the rack (1), the second automatic paint spraying unit (41) is connected with a plurality of spray pipes (43) extending along the length direction of the rack (1), and one side, far away from the second automatic paint spraying unit (41), of each spray pipe (43) is provided with a spray head;
the supporting frame (2) is symmetrically provided with a plurality of supporting rollers (7) along two sides of the length direction of the rack (1), and the supporting frame (2) is further provided with a turnover driving assembly for driving each supporting roller (7) to synchronously rotate;
the supporting rollers (7) are horizontally arranged on the bearing frame (2) in a sliding manner through the mounting seats (8), and an elastic compression assembly is arranged between any two adjacent mounting seats (8) on the same side; horizontal supports (12) are further arranged on two sides of the bearing frame (2) in an up-down adjustable mode, and a plurality of connecting rods (13) are fixedly connected between the two horizontal supports (12);
the overturning driving assembly comprises a power input assembly and a linkage assembly (11) which are arranged on the bearing frame (2), the linkage assembly (11) is respectively in transmission connection with each adjacent supporting roller (7), and the power input assembly is in transmission connection with one group of supporting rollers (7);
the linkage assembly (11) comprises synchronous chain wheels (111) coaxially and fixedly arranged with the supporting rollers (7), tension chain wheels (112) respectively arranged between every two adjacent synchronous chain wheels (111) and rotationally connected with the horizontal support (12), and synchronous chains (113) sleeved on the chain wheels;
the two opposite sides of the top of the bearing frame (2) are also provided with lifting cylinders (14), and the lifting cylinders (14) are fixedly connected with the connecting rods (13) and used for driving the horizontal support (12) to move up and down.
2. The automatic painting device for steel pipes according to claim 1, characterized in that: the bearing frame (2) is also provided with a plurality of fixing pieces which are respectively used for detachably fixing the mounting seats (8).
3. The automatic painting device for steel pipes according to claim 1, characterized in that: elasticity compression subassembly (15) include both ends respectively with telescopic link (151) of two adjacent mount pad (8) rigid couplings, the cover is equipped with compression spring (152) on telescopic link (151), the both ends of compression spring (152) are the adjacent two mount pads (8) of butt respectively.
4. An automatic paint spraying apparatus for steel pipes according to any one of claims 1 to 3, characterized in that: each spray pipe (43) is movably arranged in the length direction of the machine frame (1), and each machine frame (1) is also provided with a pushing assembly (16) used for driving each spray pipe (43).
5. The automatic painting device for steel pipes according to claim 4, characterized in that: the spray pipe (43) comprises a hard outer pipe (431) movably erected on the rack (1) along the length direction of the rack (1) and a soft inner pipe (432) arranged in the hard outer pipe (431) in a penetrating way; the spray head is fixed at one end of the hard outer pipe (431) far away from the pushing assembly (16); two ends of the soft inner pipe (432) are respectively connected with the second automatic paint spraying unit (41) and the corresponding spray head.
6. The automatic paint spraying device for the steel pipes according to claim 5, wherein: the pushing assembly (16) comprises a linkage seat (161) fixedly connected with each hard outer pipe (431) at the same time and a push-pull air cylinder (162) horizontally and fixedly arranged on the rack (1), and a piston rod of the push-pull air cylinder (162) faces the bearing frame (2) and is fixedly connected with the linkage seat (161).
7. An automatic paint spraying apparatus for steel pipes according to any one of claims 1 to 3, characterized in that: one side of the frame (1) far away from the second paint spraying assembly (4) is sequentially provided with a drying area (6) and a packing area (5), and the drying room is arranged at the drying area (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011455382.9A CN112676071B (en) | 2020-12-10 | 2020-12-10 | Automatic paint spraying apparatus of steel pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011455382.9A CN112676071B (en) | 2020-12-10 | 2020-12-10 | Automatic paint spraying apparatus of steel pipe |
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| CN112676071A CN112676071A (en) | 2021-04-20 |
| CN112676071B true CN112676071B (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011455382.9A Active CN112676071B (en) | 2020-12-10 | 2020-12-10 | Automatic paint spraying apparatus of steel pipe |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114832992A (en) * | 2022-05-25 | 2022-08-02 | 长岛高能聚氨酯有限公司 | Ball round pin paint spraying apparatus |
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| CN112024207A (en) * | 2020-08-28 | 2020-12-04 | 郑召海 | Batch paint spraying device based on building scaffold pipeline steel parts |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2010113948A1 (en) * | 2009-03-30 | 2010-10-07 | 住友金属工業株式会社 | Device and method for applying lubricant to screw thread section of steel pipe |
| CN204365540U (en) * | 2014-12-30 | 2015-06-03 | 江西安邦德旺铝业有限公司 | A kind of large aperture stainless steel tube automatic spraying equipment |
| CN204689002U (en) * | 2015-04-24 | 2015-10-07 | 楚天科技股份有限公司 | The portable discharging system of freezing-dry line |
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