CN109158778B - Efficient circulating water cooling device of laser engraving machine - Google Patents
Efficient circulating water cooling device of laser engraving machine Download PDFInfo
- Publication number
- CN109158778B CN109158778B CN201811316036.5A CN201811316036A CN109158778B CN 109158778 B CN109158778 B CN 109158778B CN 201811316036 A CN201811316036 A CN 201811316036A CN 109158778 B CN109158778 B CN 109158778B
- Authority
- CN
- China
- Prior art keywords
- cold air
- cooling
- laser engraving
- water
- waste liquid
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
- B23K26/703—Cooling arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/361—Removing material for deburring or mechanical trimming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Lasers (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to the technical field of laser engraving, in particular to a high-efficiency circulating water cooling device of a laser engraving machine, which comprises a base, a workpiece, an air compressor, a vortex tube, a cold air tube, a hot air tube, a support and a laser engraving device, wherein the workpiece is fixedly connected with the base; the right side of the cold air pipe is communicated with a cold air inlet, and the cold air inlet and the bottom of the cavity in the cooling box form a cold air outlet; a water inlet is formed in the upper portion of the right side wall of the cooling box; a water outlet is formed in the bottom of the cooling box, close to the cold air outlet, and a cooling pipe is clamped in the water outlet; a cover plate is clamped above the cooling box; the lower part of the hot air pipe is communicated with a booster pump, the lower part of the booster pump is communicated with a hot air spray head, and the hot air spray head is tightly attached to the carved surface of the workpiece; and a waste liquid outlet is formed in the bottom of the workpiece. The invention fully utilizes the hot air and the cold air generated by the vortex tube, realizes the full utilization of energy, greatly reduces the energy consumption during cooling and effectively improves the economic benefit of enterprises.
Description
Technical Field
The invention relates to the technical field of laser engraving, in particular to a high-efficiency water cooling circulation device of a laser engraving machine.
Background
The laser engraving machine irradiates a workpiece by utilizing a focused high-power-density laser beam, so that the irradiated material is quickly melted, vaporized and ablated or reaches a burning point, and meanwhile, the molten substance is blown off by virtue of high-speed airflow coaxial with the laser beam, thereby realizing the technical effect of engraving the workpiece.
Chinese patent (publication No. CN207223196U, bulletin date 2018.04.13) discloses a cooling device of a laser engraving machine, which comprises a laser engraving machine and a cooling device, wherein the laser engraving machine comprises a workbench, a support is arranged on the workbench, a laser tube is arranged on the support, an air inlet is arranged at the upper end of the laser tube, an air outlet is arranged at the lower end of the laser tube, a laser is arranged in the laser tube, the laser is connected with a laser engraving head, the cooling device comprises a support, a vortex tube and a water tank are arranged on the support, the vortex tube is provided with an air inlet, a cold air outlet, a hot air outlet and a control valve, the air inlet is connected with an air compressor, the cold air outlet is connected with a laser tube cooling branch tube and a water tank cooling branch tube, the laser tube cooling branch tube is connected with the air inlet, the water tank is provided with an interlayer, the, the cooling port is opposite to the laser engraving head. However, the time for the water tank of the cooling device to contact with cold air is short, so that the water is difficult to be sufficiently cooled, the water cooling effect is poor, and high-temperature gas generated by the vortex tube is not well utilized.
Disclosure of Invention
In order to solve the problems in the background technology, the invention provides a high-efficiency water cooling device for a laser engraving machine.
In order to achieve the purpose, the invention provides the following technical scheme:
a high-efficiency circulating water cooling device of a laser engraving machine comprises a base, a workpiece, an air compressor, a vortex tube, a cold air tube, a hot air tube, a support and a laser engraving device, wherein the workpiece is placed above the base; the right side of the cold air pipe is communicated with a cold air inlet, the cold air inlet is formed in the inner wall of the left side of the cooling box, a cold air outlet is formed between the cold air inlet and the bottom of the cavity in the cooling box, and cold air can enter from the cold air inlet and blow out from the cold air outlet to cool water in the cooling box so as to achieve the effect of reducing the water temperature; a water inlet is formed in the upper portion of the right side wall of the cooling box and is communicated with a water tank through a water inlet pipe, and the water tank can inject water into the cooling box; a water outlet is formed in the bottom of the cooling box and is close to the cold air outlet, a cooling pipe is clamped in the water outlet, the tail end of the cooling pipe is located at the position 1-2cm right of the laser engraving device, the water temperature of the cold air outlet is lowest due to the fact that the water outlet is close to the cold air outlet, the cold air outlet can directly flow into the cooling pipe from the water outlet and is used for cooling the laser engraving device, the effect of cooling the cold air is fully utilized, and the cooling effect of the laser engraving device is greatly improved; the cooling pipe is provided with the atomizing nozzle in a threaded manner, so that the utilization rate of water and the cooling effect can be improved; a cover plate is clamped above the cooling box and used for sealing and preventing dust; the cover plate is provided with an air leakage opening for discharging cold air injected from the cold air outlet out of the cooling box; the cover plate is provided with a stirring shaft through a bearing, the stirring shaft extends downwards into the cavity in the cooling box, the bottom of the stirring shaft is fixedly welded with stirring blades, and the stirring blades rotate when the stirring shaft rotates to drive water at the bottom of the cooling box to flow, so that cold air injected from the cold air outlet can be fully used for cooling the water at the bottom of the cooling box, and the full utilization of the cold air is realized; the lower part of the hot air pipe is communicated with a booster pump, the lower part of the booster pump is communicated with a hot air nozzle, the hot air nozzle is tightly attached to the carving surface of the workpiece, hot air generated by the laser carving device is used for blowing chips in the carving process, high-temperature gas can play a role in protecting gas, laser carving is not influenced, the chips and cooling water can be blown away, and the effect of improving the carving effect is achieved; a waste liquid outlet is formed in the bottom of the workpiece and used for discharging waste liquid; and a waste liquid recovery device is arranged below the waste liquid outlet.
As a further scheme of the invention: waste liquid recovery unit includes reel, pivot, waste liquid bucket and leakage fluid dram, reel bottom welded fastening is in the pivot, reel outside cover has the waste liquid bucket, the leakage fluid dram has been seted up to waste liquid bucket bottom, can stay the iron fillings sieve in the waste liquid in the reel, the waste liquid is followed the leakage fluid dram discharges.
As a further scheme of the invention: the quantity of the waste liquid recovery devices is more than one, and the other waste liquid recovery device can be replaced after the iron scraps in the screen frame are filled, so that continuous operation is facilitated.
Compared with the prior art, the invention has the beneficial effects that:
cold air can enter from the cold air inlet and blow out from the cold air outlet, and is used for cooling water in the cooling box to achieve the effect of reducing the water temperature; the water temperature at the cold air outlet is lowest, the cold air can directly flow into the cooling pipe from the water outlet and is used for cooling the laser engraving device, the cold air cooling effect is fully utilized, and the cooling effect of the laser engraving device is greatly improved; the bottom of the stirring shaft is fixedly welded with stirring blades, and when the stirring shaft rotates, the stirring blades rotate to drive water at the bottom of the cooling box to flow, so that cold air injected from the cold air outlet can be fully used for cooling the water at the bottom of the cooling box, and the cold air is fully utilized; the hot air that laser engraving ware produced is arranged in the sculpture in-process and blows bits, and high-temperature gas can play protective gas's effect, does not influence laser engraving, can blow away smear metal and cooling water again, has reached the effect that promotes the sculpture effect on the contrary. The invention fully utilizes the hot air and the cold air generated by the vortex tube, realizes the full utilization of energy, greatly reduces the energy consumption during cooling and effectively improves the economic benefit of enterprises.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a partially enlarged view of fig. 1.
Fig. 3 is a schematic structural view of the waste liquid recovery device in fig. 1.
Fig. 4 is a schematic structural diagram of embodiment 2 of the present invention.
In the figure: 1-base, 2-workpiece, 3-air compressor, 4-vortex tube, 5-cold air tube, 6-hot air tube, 7-support, 8-laser engraver, 9-cooling box, 10-cold air inlet, 11-cold air outlet, 12-water inlet, 13-water inlet tube, 14-water tank, 15-water outlet, 16-cooling tube, 17-atomizer, 18-cover plate, 19-air outlet, 20-bearing, 21-stirring shaft, 22-stirring blade, 23-booster pump, 24-hot air nozzle, 25-waste liquid outlet, 26-waste liquid recovery device, 27-sieve frame, 28-rotating shaft, 29-waste liquid barrel, 30-liquid outlet.
Detailed Description
Example 1
Referring to fig. 1, 2 and 3, a high-efficiency circulating water cooling device for a laser engraving machine comprises a base 1, a workpiece 2, an air compressor 3, a vortex tube 4, a cold air tube 5, a hot air tube 6, a support 7 and a laser engraving device 8, wherein the workpiece 2 is placed above the base 1, the air compressor 3 is arranged above the workpiece 2, the air compressor 3 is communicated with an air inlet of the vortex tube 4, the cold air tube 5 is arranged on the right side of the vortex tube 4, the hot air tube 6 is arranged on the left side of the vortex tube 4, and the laser engraving device 8 is mounted below the support 7 through bolts; the right side of the cold air pipe 5 is communicated with a cold air inlet 10, the cold air inlet 10 is formed in the inner wall of the left side of the cooling box 9, a cold air outlet 11 is formed at the bottom of a cavity in the cooling box 9 and the cold air inlet 10, cold air can enter from the cold air inlet 10 and blow out from the cold air outlet 11, and the cold air is used for cooling water in the cooling box 9, so that the effect of reducing the water temperature is achieved; a water inlet 12 is formed in the upper portion of the right side wall of the cooling box 9, the water inlet 12 is communicated with a water tank 14 through a water inlet pipe 13, and the water tank 14 can inject water into the cooling box 9; a water outlet 15 is formed in the bottom of the cooling box 9 and is close to the cold air outlet 11, a cooling pipe 16 is clamped in the water outlet 15, the tail end of the cooling pipe 16 is located at a position 1-2cm away from the right side of the laser engraving device 8, and the water temperature at the cold air outlet 11 is lowest because the water outlet 15 is close to the cold air outlet 11, so that the water can directly flow into the cooling pipe 16 from the water outlet 15 and is used for cooling the laser engraving device 8, the effect of cooling the cold air is fully utilized, and the cooling effect of the laser engraving device 8 is greatly improved; the cooling pipe 16 is provided with the atomizing nozzle 17 in a threaded manner, so that the utilization rate of water and the cooling effect can be improved; a cover plate 18 is clamped above the cooling box 9 and used for sealing and preventing dust; the cover plate 18 is provided with an air leakage opening 19 for discharging the cold air injected from the cold air outlet 11 out of the cooling box 9; the cover plate 18 is provided with a stirring shaft 21 through a bearing 20, the stirring shaft 21 extends downwards into the cavity inside the cooling box 9, the bottom of the stirring shaft 21 is fixedly welded with a stirring blade 22, the stirring blade 22 rotates when the stirring shaft 21 rotates to drive water at the bottom of the cooling box 9 to flow, so that cold air injected from the cold air outlet 11 can be fully used for cooling the water at the bottom of the cooling box 9, and the cold air is fully utilized; the lower part of the hot air pipe 6 is communicated with a booster pump 23, the lower part of the booster pump 23 is communicated with a hot air spray head 24, the hot air spray head 24 is tightly attached to the carving surface of the workpiece 2, hot air generated by the laser carving device 8 is used for blowing chips in the carving process, and high-temperature gas can play a role in protecting gas, does not influence laser carving, and can blow away the chips and cooling water, so that the carving effect is improved; a waste liquid outlet 25 is formed in the bottom of the workpiece 2 and used for discharging waste liquid; waste liquid export 25 below is provided with waste liquid recovery unit 26, waste liquid recovery unit 26 includes reel 27, pivot 28, waste liquid bucket 29 and leakage fluid dram 30, reel 27 bottom welded fastening is on pivot 28, reel 27 outside cover has waste liquid bucket 29, leakage fluid dram 30 has been seted up to waste liquid bucket 29 bottom, can stay the iron fillings sieve in the waste liquid in the reel 27, the waste liquid is followed leakage fluid dram 30 discharges.
Example 2
Referring to fig. 4, the difference between this embodiment 2 and embodiment 1 is that the number of the waste liquid recovery devices 26 is greater than one, and another waste liquid recovery device 26 can be replaced to continue filtering after the iron filings in the screen frame 27 are full, thereby facilitating continuous operation.
The working principle of the invention is that cold air can enter from the cold air inlet 10 and blow out from the cold air outlet 11 to cool water in the cooling box 9, thereby achieving the effect of reducing water temperature; the cold air outlet 11 has the lowest water temperature, can directly flow into the cooling pipe 16 from the water outlet 15 and is used for cooling the laser engraving device 8, so that the cold air cooling effect is fully utilized, and the cooling effect of the laser engraving device 8 is greatly improved; the bottom of the stirring shaft 21 is fixedly welded with stirring blades 22, and the stirring blades 22 rotate when the stirring shaft 21 rotates to drive water at the bottom of the cooling box 9 to flow, so that cold air injected from the cold air outlet 11 can be fully used for cooling the water at the bottom of the cooling box 9, and the cold air is fully utilized; the hot air that laser engraving device 8 produced is arranged in the bits that blow of sculpture in-process, and high-temperature gas can play protective gas's effect, does not influence laser engraving, can blow away smear metal and cooling water again, has reached the effect that promotes the sculpture effect on the contrary. The invention fully utilizes the hot air and the cold air generated by the vortex tube 4, realizes the full utilization of energy, greatly reduces the energy consumption during cooling and effectively improves the economic benefit of enterprises.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. A high-efficiency circulating water cooling device of a laser engraving machine comprises a base (1), a workpiece (2), an air compressor (3), a vortex tube (4), a cold air tube (5), a hot air tube (6), a support (7) and a laser engraving device (8), wherein the workpiece (2) is placed above the base (1), the air compressor (3) is arranged above the workpiece (2), the air compressor (3) is communicated with an air inlet of the vortex tube (4), the cold air tube (5) is arranged on the right side of the vortex tube (4), the hot air tube (6) is arranged on the left side of the vortex tube (4), the laser engraving device (8) is installed on a bolt below the support (7), and the high-efficiency circulating water cooling device is characterized in that the right side of the cold air tube (5) is communicated with a cold air inlet (10), and the cold air inlet (10) is formed in the inner wall of the left side of a, a cold air outlet (11) is formed at the bottom of the cavity in the cooling box (9) and the cold air inlet (10); a water inlet (12) is formed in the upper portion of the right side wall of the cooling box (9), and the water inlet (12) is communicated with a water tank (14) through a water inlet pipe (13); a water outlet (15) is formed in the bottom of the cooling box (9) and is close to the cold air outlet (11), and a cooling pipe (16) is clamped in the water outlet (15); a cover plate (18) is clamped above the cooling box (9); the cover plate (18) is provided with an air leakage opening (19); a stirring shaft (21) is mounted on the cover plate (18) through a bearing (20), the stirring shaft (21) extends downwards into the cavity in the cooling box (9), stirring blades (22) are fixedly welded at the bottom of the stirring shaft (21), the lower part of the hot air pipe (6) is communicated with a booster pump (23), the lower part of the booster pump (23) is communicated with a hot air nozzle (24), and the hot air nozzle (24) is tightly attached to the carved surface of the workpiece (2); and a waste liquid outlet (25) is formed in the bottom of the workpiece (2).
2. The efficient water cooling device for the laser engraving machine according to claim 1, wherein the tail end of the cooling pipe (16) is positioned at 1-2cm of the right side of the laser engraving machine (8).
3. The efficient water cooling device for the laser engraving machine according to claim 2, wherein the cooling pipe (16) is provided with the atomizing nozzle (17) in a threaded manner.
4. The high-efficiency water cooling circulation device for the laser engraving machine according to any one of claims 1 to 3, wherein a waste liquid recovery device (26) is arranged below the waste liquid outlet (25).
5. The efficient water cooling device for the laser engraving machine according to claim 4, wherein the waste liquid recovery device (26) comprises a screen frame (27), a rotating shaft (28), a waste liquid barrel (29) and a liquid discharge port (30), the bottom of the screen frame (27) is welded and fixed on the rotating shaft (28), the waste liquid barrel (29) is sleeved on the outer side of the screen frame (27), and the liquid discharge port (30) is formed in the bottom of the waste liquid barrel (29).
6. The efficient water cooling circulation device for the laser engraving machine according to claim 4, wherein the number of the waste liquid recovery devices (26) is more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811316036.5A CN109158778B (en) | 2018-11-07 | 2018-11-07 | Efficient circulating water cooling device of laser engraving machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811316036.5A CN109158778B (en) | 2018-11-07 | 2018-11-07 | Efficient circulating water cooling device of laser engraving machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109158778A CN109158778A (en) | 2019-01-08 |
| CN109158778B true CN109158778B (en) | 2020-09-11 |
Family
ID=64876793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811316036.5A Active CN109158778B (en) | 2018-11-07 | 2018-11-07 | Efficient circulating water cooling device of laser engraving machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109158778B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112476047B (en) * | 2020-11-30 | 2021-11-12 | 河南理工大学 | Atomizing device of trace lubricating system |
| CN112496542A (en) * | 2020-12-18 | 2021-03-16 | 江苏觅科激光设备有限公司 | Cooling structure of laser welding machine |
| CN113708198A (en) * | 2021-09-09 | 2021-11-26 | 南通温亨制冷设备有限公司 | Multistage circulating laser water cooling machine |
| CN114309994B (en) * | 2022-02-28 | 2023-12-26 | 济南金强激光数控设备有限公司 | Water spraying and deslagging mechanism of laser pipe cutting machine |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06147711A (en) * | 1992-11-02 | 1994-05-27 | Mitsubishi Heavy Ind Ltd | Artificial snow making apparatus |
| CN1640606A (en) * | 2004-01-05 | 2005-07-20 | 梁吉旺 | Plate cutting apparatus |
| FR2891483B1 (en) * | 2005-10-05 | 2009-05-15 | Commissariat Energie Atomique | METHOD AND INSTALLATION OF LASER CUTTING / WELDING |
| CN200975801Y (en) * | 2006-10-10 | 2007-11-14 | 重庆大学 | Adjustable temperature vortex tube cold air generators |
| CN205980464U (en) * | 2016-08-24 | 2017-02-22 | 江西盛伟科技股份有限公司 | Circulating refrigerating unit of comdenstion water |
| CN206105159U (en) * | 2016-11-07 | 2017-04-19 | 天门市俣盛技术服务有限公司 | Clean formula laser engraving machine |
| CN206701154U (en) * | 2017-04-26 | 2017-12-05 | 南安泰达工业设计有限公司 | A kind of agitating device with refrigerating function |
| CN207223196U (en) * | 2017-05-23 | 2018-04-13 | 东莞市荣泰包装制品有限公司 | A kind of cooling device of laser engraving machine |
| CN207153551U (en) * | 2017-07-27 | 2018-03-30 | 苏州维明化学工业有限公司 | A kind of agitator with cooling device |
| CN207888076U (en) * | 2018-02-28 | 2018-09-21 | 山东镭泽智能科技有限公司 | Laser marking machine dedusting light path cover |
-
2018
- 2018-11-07 CN CN201811316036.5A patent/CN109158778B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109158778A (en) | 2019-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109158778B (en) | Efficient circulating water cooling device of laser engraving machine | |
| CN212761772U (en) | Cooling device of laser engraving equipment | |
| CN209288541U (en) | A kind of laser cutting waste material slag-draining device | |
| CN209830861U (en) | Vertical and horizontal round table drilling and milling machining center | |
| CN216066034U (en) | Laser cutting splash blocking device | |
| CN212311178U (en) | Laser cutting head convenient to uniform cooling | |
| CN116900287A (en) | Cast member cooling arrangement | |
| CN210755910U (en) | Double-laser-head cutting machine | |
| CN216938946U (en) | Fume extractor for laser welding | |
| CN206589538U (en) | Multi-functional engraving machine | |
| CN211162398U (en) | Three-dimensional laser cladding surface treatment device | |
| CN215846180U (en) | Tin material melting device for selective wave soldering | |
| CN214054050U (en) | High accuracy intelligence integration laser cutting machine's dust collector | |
| CN205043342U (en) | Differential circulative cooling biax shoulder stirring instrument | |
| CN100462659C (en) | Cooling column water temperature regulate and control method | |
| CN210242468U (en) | Drawer kiln waste heat utilization equipment of high-voltage electric porcelain | |
| CN215144533U (en) | Novel refabrication high abrasion build-up welding continuous casting roller | |
| CN112157823A (en) | Intelligent environment-friendly energy-saving grooving machine | |
| CN203751286U (en) | Semisolid slurry clean preparation device | |
| CN214349495U (en) | Workpiece cooling device for die casting machine tool | |
| CN211570681U (en) | Inclined rotary disc cutting machine for machining heart | |
| CN219449774U (en) | Quenching cooling device for roller | |
| CN215393168U (en) | Laser welding equipment for right mirror rod of traffic transportation equipment | |
| CN217551257U (en) | Stainless steel casting milling device | |
| CN207914810U (en) | A kind of plate with laser cutter device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200819 Address after: 226600 169 Li Fa FA Road, Chengdong Town, Haian City, Nantong, Jiangsu. Applicant after: JIANGSU TUOBO REFRIGERATION TECHNOLOGY Co.,Ltd. Address before: 516500 No. 44, Hukeng 1 Village, Hukeng 1 Lane, Hukeng 1 Village, Hubei Town, Lufeng City, Shanwei City, Guangdong Province Applicant before: Liu Huihua |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |