CN220004513U - Coating production line - Google Patents
Coating production line Download PDFInfo
- Publication number
- CN220004513U CN220004513U CN202320838162.7U CN202320838162U CN220004513U CN 220004513 U CN220004513 U CN 220004513U CN 202320838162 U CN202320838162 U CN 202320838162U CN 220004513 U CN220004513 U CN 220004513U
- Authority
- CN
- China
- Prior art keywords
- powder spraying
- shot blasting
- automatic
- manual
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 239000011248 coating agent Substances 0.000 title claims abstract description 16
- 238000000576 coating method Methods 0.000 title claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 104
- 238000005507 spraying Methods 0.000 claims abstract description 103
- 238000005422 blasting Methods 0.000 claims abstract description 73
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 239000000725 suspension Substances 0.000 claims description 23
- 238000009825 accumulation Methods 0.000 claims description 18
- 238000007689 inspection Methods 0.000 claims description 10
- 238000000151 deposition Methods 0.000 claims 2
- 238000010410 dusting Methods 0.000 claims 2
- 238000010422 painting Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 28
- 229910000831 Steel Inorganic materials 0.000 abstract description 15
- 239000010959 steel Substances 0.000 abstract description 15
- 239000003973 paint Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 16
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The utility model relates to a coating production line, which comprises a rail-mounted trolley, wherein a loading area, an automatic shot blasting chamber, an automatic powder spraying chamber, a paint baking furnace and a natural cooling area are sequentially arranged below the rail-mounted trolley. According to the utility model, the cylinder, the rotating mechanism and the rotating driving mechanism are additionally arranged, so that the workpiece is continuously changed in position during shot blasting cleaning, steel shots are sprayed to all positions of the workpiece as much as possible, dead angles are not remained during cleaning, and the shot blasting cleaning quality is greatly improved.
Description
Technical Field
The utility model relates to the technical field of surface treatment processing equipment, in particular to a coating production line.
Background
In machining production, dust, greasy dirt, rust and the like exist on the surfaces of mechanical parts such as profile steel, castings and the like after preliminary processing or long-term storage, and the required workpiece can be obtained after rust removal and spraying treatment. At present, the work pieces are generally processed by adopting a shot blasting machine to perform shot blasting treatment, dust, greasy dirt, rust and other substances on the surfaces of the work pieces are removed, then paint is sprayed on the surfaces of the work pieces, and then the paint is solidified on the surfaces of the work pieces through baking. The workpiece is transmitted to each station by adopting a transmission production line, so that the processes of multiple transition, feeding and discharging of the workpiece are saved, and the production efficiency is greatly improved. However, the angle of the shot cast by the existing shot blasting machine is fixed, and the workpiece is fixed during shot blasting cleaning, so that the workpiece has places where some shot cannot be shot or only a small amount of shot is shot, the places have the problem of incomplete cleaning, a plurality of defective products can appear, and the processing quality is low. In addition, the existing production line is used for conveying the workpiece to each station once, and the problem of no undercut treatment exists in each procedure, such as dead angles which cannot be treated or parts which cannot be thoroughly treated exist in shot blasting cleaning and powder spraying, so that a plurality of defective products can be caused.
Disclosure of Invention
In order to solve the above problems, the present utility model provides a coating line to improve the processing quality.
In order to achieve the above purpose, the coating production line provided by the utility model comprises a main accumulation suspension conveying line connected end to end, wherein the main accumulation suspension conveying line comprises a track and a bearing trolley capable of moving on the track, a loading area, an automatic shot blasting chamber, an automatic powder spraying chamber, a paint baking furnace and a natural cooling area are sequentially arranged below the main accumulation suspension conveying line along the conveying direction, the automatic shot blasting chamber is provided with an automatic shot blasting machine for automatically blasting and cleaning workpieces, the automatic powder spraying chamber is provided with the automatic powder blasting machine for automatically spraying powder on the workpieces, the paint baking furnace is used for carrying out hot baking on the workpieces conveyed into the automatic shot blasting chamber, and the coating production line is characterized in that the bearing trolley is provided with a cylinder and a rotating mechanism, the cylinder is vertically arranged, the rotating mechanism comprises a connecting rod, a gear and a hanging rod, the connecting rod penetrates through the cylinder, the two ends of the connecting rod extend out of the cylinder, the gear is arranged at the upper end of the connecting rod, the hanging rod is arranged at the lower end of the connecting rod, the automatic shot blasting chamber is further provided with a rotary driving mechanism, and the bearing trolley moves to the rotary driving mechanism of the automatic shot blasting chamber to the rotary driving mechanism.
According to the coating production line provided by the utility model, the cylinder and the rotating mechanism are additionally arranged on the bearing trolley, the rotating driving mechanism is additionally arranged in the automatic shot blasting chamber, and the workpiece is continuously changed in position by rotating the workpiece during shot blasting cleaning, so that steel shots are sprayed to all positions of the workpiece as much as possible, no cleaning dead angle is left, the shot blasting cleaning quality is greatly improved, a foundation is laid for the subsequent powder spraying process, and the production and processing quality is greatly improved.
Further, the coating production line further comprises a conveying line manual powder spraying section and a conveying line returning section, both ends of the conveying line manual powder spraying section and the conveying line returning section are respectively connected with the main accumulation suspension conveying line through an inlet turnout device and an outlet turnout device, the conveying direction of the conveying line manual powder spraying section is from the inlet turnout device to the outlet turnout device, a manual powder spraying chamber is arranged below the conveying line manual powder spraying section, the conveying direction of the conveying line returning section is from the outlet turnout device to the inlet turnout device, the part of the main accumulation suspension conveying line between the two turnout devices is an automatic powder spraying section from the inlet turnout device to the outlet turnout device in conveying direction, and the automatic powder spraying chamber and the inspection chamber are sequentially arranged below the automatic powder spraying section along the conveying direction.
According to the utility model, the manual powder spraying section and the return section of the conveying line are connected with the main accumulation suspension conveying line through the two turnout devices, and the unqualified powder spraying workpiece can be returned to the powder spraying process for re-spraying, so that the powder spraying defect can be greatly reduced, and the processing quality is improved; in addition, two modes of automatic powder spraying and manual powder spraying are available in the powder spraying process, the powder spraying mode is flexible, fine management is carried out on the powder spraying, paint powder and energy consumption can be saved, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic view of a coating line;
FIG. 2 is a schematic view of the structure of a load-bearing trolley;
FIG. 3 is a schematic view of the structure of an automatic shot blasting machine;
fig. 4 is a schematic structural view of the manual shot blasting machine.
The utility model is described in further detail below with reference to the accompanying drawings.
Detailed Description
Referring to fig. 1 and 2, the coating production line comprises a main accumulation suspension conveying line 1 connected end to end, wherein the main accumulation suspension conveying line 1 is an accumulation suspension conveying chain, and comprises a driving device, a tensioning device, a double-hinge chain, a track 11 and a carrying trolley 12, and the carrying trolley 12 can move on the track 11 so as to drive a workpiece to move to each station. The lower part of the main stacking suspension conveying line 1 is sequentially provided with a loading area 31, an automatic shot blasting chamber 32, a workpiece overturning area 33, a manual shot blasting chamber 34, an automatic powder spraying chamber 35, an inspection chamber 36, a paint baking furnace 37 and a natural cooling area 38 along the conveying direction, the workpiece to be processed is hung on a carrying trolley in the loading area 31, the main stacking suspension conveying line 1 passes through the upper part of the station areas, and the carrying trolley moves to convey the workpiece to each station.
Referring to fig. 2, a cylinder 13 and a rotating mechanism are arranged on a carrying trolley 12, the cylinder 13 is vertically arranged, and a cavity which penetrates up and down is arranged in the center. The rotating mechanism comprises a connecting rod 14, a gear 15 and a hanging rod 16, wherein the connecting rod 14 penetrates through the cylinder 13, two ends of the connecting rod extend out of the cylinder 13, the gear 15 is arranged at the upper end of the connecting rod 14, the hanging rod 16 is arranged at the lower end of the connecting rod, and the hanging rod is used for hanging a workpiece. The hanger bar 16 has a hanger 17, and a workpiece is hung on the hanger 17. The workpiece hung on the hanging rod can be driven to rotate by the rotation of the overdrive gear 15.
Referring to fig. 3, the automatic shot blasting chamber 32 is provided with an automatic shot blasting machine for performing an automatic shot blasting cleaning process on a workpiece. The automatic shot blasting machine comprises a blower, a shot box, a conveying pipe 63, an injection mechanism 64, a cleaning mechanism and a recovery mechanism, wherein the two ends of the conveying pipe 63 are respectively connected with the shot box and the injection mechanism 64, the injection mechanism 64 comprises a plurality of fixed injection pipes 65, the fixed injection pipes 65 are fixed on the injection mechanism 64, and the injection angles of the fixed injection pipes 65 are set according to the position and the shape of a workpiece so as to obtain a better cleaning effect. The automatic shot blasting chamber 32 is also provided with a rotary driving mechanism (not shown in the figure), and the carrying trolley 12 moves to bring the workpiece to a shot blasting position of the automatic shot blasting chamber, and in the shot blasting position, the rotary driving mechanism is matched with a gear 15 of the rotary mechanism, so that the gear 15 of the rotary mechanism can be driven to rotate, and the workpiece is rotated. When the shot blasting cleaning is carried out, the rotary driving mechanism is started to rotate the workpiece, meanwhile, the blower is started, steel shots in the steel shot box are conveyed to the injection mechanism 64 through the conveying pipe 63, are injected from the fixed injection pipe 65 and hit the rotating workpiece, and dust, greasy dirt, rust and the like on the workpiece are shot down. The cleaning mechanism collects the flicking objects on the workpiece in a negative pressure suction mode, and the recovery mechanism recovers the shot steel shots to the steel shot box. When the shot blasting cleaning is finished, the rotary driving mechanism and the blower are turned off, and the workpiece carrying the trolley handle is taken out of the automatic shot blasting chamber 32 and enters the overturning area 33.
Because the workpiece is rotating during the shot blasting cleaning in the automatic shot blasting chamber 32, the position angle of the relative carrying trolley is not the same each time the workpiece comes out of the automatic shot blasting chamber 32, and the placing angle of the workpiece can be adjusted by rotating the workpiece in the overturning area 33 in order to facilitate the subsequent manual shot blasting and powder spraying processes to be better operated and improve the subsequent powder spraying quality. Because the work piece is suspended from the hanger bar 16 and the hanger bar 16 is rotatable relative to the carriage 12, rotating the work piece is easy to operate and the work piece can be rotated manually or by a machine. The bearing trolley is provided with a rotating mechanism, so that the workpiece can be conveniently rotated to adjust the position.
Referring to fig. 4, the manual shot blasting chamber 34 is provided with a manual shot blasting machine for performing a manual shot blasting process on a workpiece. The manual shot blasting machine has a structure similar to that of an automatic shot blasting machine and comprises a small blower, a small steel shot box, a small conveying pipe 73, a small spraying mechanism 74, a small cleaning mechanism and a small recycling mechanism, wherein the small steel shot box and the small spraying mechanism are respectively connected with two ends of the small conveying pipe 73, and the small spraying mechanism 74 comprises a small spraying pipe capable of manually moving. The small blower is started, the steel shots in the small steel shot box are conveyed to the small spraying mechanism 74 through the small conveying pipe 73, the steel shots are sprayed out of the small spraying pipe and hit the workpiece, and dust, greasy dirt, rust and the like on the workpiece are shot down. The small clean recovery mechanism collects the shot objects on the workpiece in a negative pressure suction mode, and the small recovery mechanism recovers the shot steel shots into the small steel shot box. The small spray pipe is held by a worker, can flexibly move to parts of the workpiece, which are clean and not cut, and performs targeted shot blasting cleaning treatment on the parts, so that the workpiece is clean and cut, and the cleaning effect is better. Only the work pieces with poor cleaning effect in the automatic shot blasting chamber need to be manually shot-blasted and cleaned in the manual shot blasting chamber 34, and the work pieces without the manual shot-blasting and cleaning need to be directly passed through the manual shot blasting chamber 34.
Referring to fig. 1, the coating production line further comprises two sections of stacking suspension conveying lines, namely a manual powder spraying section 12 and a conveying line returning section 13. The two ends of the manual powder spraying section 12 of the conveying line are respectively connected with a main accumulation suspension conveying line 1 through an inlet turnout device 91 and an outlet turnout device 92, and the conveying direction is from the inlet turnout device 91 to the outlet turnout device 92. A manual powder spraying chamber 39 is arranged below the manual powder spraying section 12 of the conveying line, and the manual powder spraying chamber 39 is used for spraying powder to the workpiece in a manual mode. Both ends of the conveyor line return section 13 are connected with the main accumulation suspension conveyor line 1 through an entrance turnout device 91 and an exit turnout device 92 respectively, and the conveying direction is from the exit turnout device 92 to the entrance turnout device 91. The main power and free suspension conveyor line 1 is divided into an automatic powder spraying section between the two turnout devices, the conveying direction of the automatic powder spraying section is from the inlet turnout device 91 to the outlet turnout device 92, and the automatic powder spraying chamber 35 and the inspection chamber 36 are arranged below the automatic powder spraying section along the conveying direction. The automatic powder spraying chamber 35 is provided with an automatic powder spraying machine, and the automatic powder spraying machine automatically sprays powder on the workpiece. The entrance turnout device 91 and the exit turnout device 92 are devices for controlling the running route of the carrying trolley in the accumulation conveyor line, the entrance turnout device 91 is used for controlling the carrying trolley to move away from the automatic powder spraying section or the manual powder spraying section of the conveyor line, and the exit turnout device 92 is used for controlling the carrying trolley to move away from the main accumulation suspension conveyor line 1 or the return section of the conveyor line.
The workpiece is conveyed to an automatic powder spraying chamber 35 by a main accumulation suspension conveying line 1 after being subjected to shot blasting cleaning treatment by an automatic shot blasting machine and a manual shot blasting machine in sequence, and the automatic powder spraying machine in the automatic powder spraying chamber 35 is used for automatically spraying powder to the workpiece. The workpiece is discharged from the automatic powder spraying chamber 35 and enters the inspection chamber 36, and mechanical automatic inspection can be adopted in the inspection chamber 36, and manual inspection can be performed by staff. After inspection, whether the powder spraying of the workpiece is qualified or not can be judged, and whether the powder spraying needs to be supplemented or not is judged. If the powder spraying of the workpiece is qualified, the main stacking suspension conveying line 1 is selected through the outlet fork device 92, the workpiece enters the paint baking furnace 37 along the main stacking suspension conveying line 1 to carry out the paint baking process of the next stage, the paint baking furnace 37 carries out high-temperature baking on the workpiece to ensure that the paint powder is firmly attached to the surface of the workpiece, the workpiece then enters the natural cooling area 38 along the main stacking suspension conveying line 1 to carry out natural cooling, and the workpiece can be taken down from the main stacking suspension conveying line 1 after cooling is finished, and the surface processing of the workpiece is finished. If the work piece is judged to be unqualified in powder spraying in the inspection chamber 36 and powder spraying is needed to be supplemented, the conveying line returning section 13 is selected through the outlet turnout device 92, the work piece is conveyed to the inlet turnout device 91 through the conveying line returning section 13, the work piece can be selected to be moved away from the automatic powder spraying section or the conveying line manual powder spraying section through the inlet turnout device 91, the automatic powder spraying section is moved away from the automatic powder spraying chamber 35 to automatically spray powder again, the manual powder spraying section is moved away from the conveying line manual powder spraying section to manually spray powder in the manual powder spraying chamber 39, and the work piece enters the next paint baking procedure after the powder spraying is qualified. The unqualified workpiece can be returned to the powder spraying process through the return section of the conveying line for re-powder spraying, so that the powder spraying defect can be greatly reduced, and the powder spraying quality is improved. In the powder spraying process, automatic powder spraying or manual powder spraying can be selected, the powder spraying mode is flexible, the powder spraying can be selected for small workpieces or workpieces needing small-range powder supplementing, the paint powder and the energy consumption can be saved, and the production efficiency can be improved.
The manual powder spraying section 12, the return section 13 and the automatic powder spraying section of the conveying line are mutually parallel, so that the whole conveying line is compact in structure, the production space is saved, the production cost is reduced, the workpiece conveying distance can be shortened, and the production efficiency is improved.
According to the coating production line provided by the utility model, the cylinder and the rotating mechanism are additionally arranged on the bearing trolley, the rotating driving mechanism is additionally arranged in the automatic shot blasting chamber, and the workpiece is continuously changed in position by rotating the workpiece during shot blasting cleaning, so that steel shots are sprayed to all positions of the workpiece as much as possible, no cleaning dead angle is left, the shot blasting cleaning quality is greatly improved, a foundation is laid for the subsequent powder spraying process, and the production and processing quality is greatly improved. The manual powder spraying section and the return section of the conveying line are connected with the main accumulation hanging conveying line through the two turnout devices, and the unqualified workpiece after powder spraying can be returned to the powder spraying process for powder spraying again, so that the powder spraying defect can be greatly reduced, and the processing quality is improved; in addition, two modes of automatic powder spraying and manual powder spraying are available in the powder spraying process, the powder spraying mode is flexible, fine management is carried out on the powder spraying, paint powder and energy consumption can be saved, and the production efficiency is improved. The workpiece overturning area and the manual shot blasting chamber are additionally arranged behind the automatic shot blasting chamber, and the position and the angle of the workpiece can be adjusted through rotation in the workpiece overturning area, so that the follow-up manual shot blasting and powder spraying processes can be operated better, and the follow-up powder spraying quality can be improved. The manual shot blasting chamber can perform manual shot blasting cleaning on dead corners and parts which are not cut at the bottom and are automatically shot blasting cleaned in the front, so that the shot blasting cleaning quality of the workpiece is improved, and the processing quality of the workpiece is further improved.
Claims (4)
1. The utility model provides a coating production line, includes the main accumulation of end to end and hangs the transfer chain, and main accumulation is put and is hung the transfer chain and include the track and can be on the track the bearing trolley of removal, main accumulation is put and is hung the transfer chain the below and be equipped with in proper order and go up a district, automatic shot blasting room, automatic powder spraying room, baking finish stove and natural cooling district, automatic shot blasting room is equipped with and is used for carrying out the clear automatic shot blasting machine of automatic shot to the work piece, automatic powder spraying room is equipped with the automatic powder spraying machine that is used for carrying out automatic powder spraying to the work piece, baking finish stove is used for carrying out the hot stoving to the work piece that carries into it, a serial communication port, be equipped with drum and rotary mechanism on the bearing trolley, the drum sets up perpendicularly, rotary mechanism includes connecting rod, gear and peg, and connecting rod pass in the drum, and its both ends stretch out outside the drum, the upper end of gear setting at the connecting rod, and the peg is used for hanging the work piece, still be equipped with rotary driving mechanism in the automatic shot blasting room, bearing trolley moves to the automatic shot blasting room when the position of shot blasting machine, rotary driving mechanism can be rotated.
2. The coating production line according to claim 1, further comprising a manual powder spraying section and a return section of the conveying line, wherein both ends of the manual powder spraying section and the return section of the conveying line are respectively connected with the main depositing suspension conveying line through an inlet turnout device and an outlet turnout device, the conveying direction of the manual powder spraying section of the conveying line is from the inlet turnout device to the outlet turnout device, a manual powder spraying chamber is arranged below the manual powder spraying section, the conveying direction of the return section of the conveying line is from the outlet turnout device to the inlet turnout device, the part of the main depositing suspension conveying line between the two turnout devices is an automatic powder spraying section from the inlet turnout device to the outlet turnout device, and the automatic powder spraying chamber and the inspection chamber are sequentially arranged below the automatic powder spraying section along the conveying direction.
3. A painting line according to claim 2, characterized in that a workpiece turning area and a manual shot blasting chamber are provided between the automatic shot blasting chamber and the inlet switch device, the workpiece turning area being between the automatic shot blasting chamber and the manual shot blasting chamber, the manual shot blasting chamber being provided with a manual shot blasting machine having a manually movable small ejector tube.
4. A coating line as in claim 3 wherein the conveyor line manual dusting section, conveyor line return section and automatic dusting section are parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320838162.7U CN220004513U (en) | 2023-04-16 | 2023-04-16 | Coating production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320838162.7U CN220004513U (en) | 2023-04-16 | 2023-04-16 | Coating production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220004513U true CN220004513U (en) | 2023-11-14 |
Family
ID=88686873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320838162.7U Active CN220004513U (en) | 2023-04-16 | 2023-04-16 | Coating production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220004513U (en) |
-
2023
- 2023-04-16 CN CN202320838162.7U patent/CN220004513U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110216487B (en) | Automatic flexible production line and production method for metal support products | |
| CN104841668B (en) | A kind of intelligent automated cleaning subelement and its application method based on number bus | |
| CN110788091B (en) | Device and method for cleaning inner wall of food-grade steel pipe | |
| CN110541143B (en) | Zinc impregnation system and zinc impregnation method | |
| CN220004605U (en) | Powder spraying production line | |
| CN206464141U (en) | Low-cost and high-performance automatic spraying line | |
| CN115889059A (en) | Workpiece water-based paint coating production line and process | |
| CN220004513U (en) | Coating production line | |
| CN104400665A (en) | Shot blasting processing device for inner wall of box body type workpiece | |
| CN207914003U (en) | A kind of stainless steel kitchenware automation paint equipment | |
| CN209156192U (en) | A kind of conveyer automatic spraying conveying device | |
| CN220007398U (en) | Shot blasting cleaning production line | |
| CN215843775U (en) | Construction elevator standard festival coating line | |
| CN208390328U (en) | A kind of Industrial Steels pipe surface paint spraying apparatus | |
| CN211992507U (en) | Material cleaning device for shot blasting machine | |
| CN202088102U (en) | Full-automatic sand blasting machine | |
| CN113696052B (en) | Intelligent flexible self-cleaning polishing robot device | |
| CN116117702A (en) | Intelligent shot blasting machine for production of heat preservation pipes and shot blasting method thereof | |
| CN112589683B (en) | Method for pretreating surface of rail transit wagon door | |
| CN213529331U (en) | Vehicle body spraying device for full-automatic electric tricycle production | |
| CN111760738B (en) | Coating device for cargo box of heavy-duty mine car | |
| CN112934546A (en) | Coating production line and coating process for standard knot of construction elevator | |
| CN204339596U (en) | A kind of box-type workpieces inner wall shot blasting treating apparatus | |
| CN210700812U (en) | Coating system for profile steel to manufacture crane auxiliary arm | |
| CN216883412U (en) | Detachable and integrated shot blasting and powder spraying production line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |