CN112278959A - Airfoil nozzle for suspension conveying of low-tension materials - Google Patents
Airfoil nozzle for suspension conveying of low-tension materials Download PDFInfo
- Publication number
- CN112278959A CN112278959A CN202011215673.0A CN202011215673A CN112278959A CN 112278959 A CN112278959 A CN 112278959A CN 202011215673 A CN202011215673 A CN 202011215673A CN 112278959 A CN112278959 A CN 112278959A
- Authority
- CN
- China
- Prior art keywords
- section
- vertical
- shell
- bending
- casing
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/14—Advancing webs by direct action on web of moving fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/004—Drying ribbons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
- F26B13/101—Supporting materials without tension, e.g. on or between foraminous belts
- F26B13/104—Supporting materials without tension, e.g. on or between foraminous belts supported by fluid jets only; Fluid blowing arrangements for flotation dryers, e.g. coanda nozzles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
- F26B13/108—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials using one or more blowing devices, e.g. nozzle bar, the effective area of which is adjustable to the width of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/51—Modifying a characteristic of handled material
- B65H2301/517—Drying material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2406/00—Means using fluid
- B65H2406/10—Means using fluid made only for exhausting gaseous medium
- B65H2406/12—Means using fluid made only for exhausting gaseous medium producing gas blast
- B65H2406/122—Nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of air-floating type oven nozzles, in particular to an air wing type nozzle for suspension conveying of low-tension materials, which comprises a shell, wherein the top of the shell is provided with an opening, the bottom surface of the shell is provided with a connecting port for inserting a plug of an air collection chamber, and the inner bottom surface of the shell is provided with a sealing element for improving the air tightness of the shell; the open-top department of casing is connected with the aerofoil board, the aerofoil board includes two vertical section one and lies in the slope section between two vertical section one, two vertical section one respectively with the laminating of two vertical inside walls that the casing is relative and connect, the top that the casing is close to the vertical lateral wall of the lower one end of slope section height is equipped with the section of bending, the section of bending highly is higher than the minimum of slope section, the section of bending is buckled and is left the gap between tip and the slope section of the section of bending to the direction that is close to the slope section, the portion that the slope section height is less than the section of bending top sets up a plurality of evenly distributed's exhaust vent. The invention has the effect of realizing the suspension conveying of the low-tension material.
Description
Technical Field
The invention relates to the technical field of air-floating type drying oven nozzles, in particular to an air wing type nozzle for suspension conveying of low-tension materials.
Background
The nozzle is a key part of the air-floating type oven, and is usually connected with and matched with a plug at the air outlet end of the air collecting chamber. The traditional nozzle is mainly an impact type nozzle, and the impact airflow blown out by the nozzle supports the base material and simultaneously realizes the drying and supporting functions. However, such nozzles require a high tension in the substrate and are generally not satisfactory for materials that can only be transported under low tension.
Disclosure of Invention
In view of the defects in the prior art, the invention aims to provide an airfoil nozzle for low-tension material suspension conveying, which has the effect of realizing suspension conveying of low-tension materials.
The above object of the present invention is achieved by the following technical solutions:
an airfoil nozzle for suspension conveying of low-tension materials comprises a shell, wherein the top of the shell is provided with an opening, the bottom surface of the shell is provided with a connecting port for inserting a plug of a gas collection chamber, and the inner bottom surface of the shell is provided with a sealing element for improving the gas tightness of the shell; the utility model discloses a casing, including casing, wing panel, oblique section, wing panel, casing, wing panel, oblique section, wing panel, oblique section, wing panel, etc. the open-top of wing panel, etc. the oblique section is connected with the laminating of two vertical inside walls that the casing is relative respectively, the oblique section is located the opening part at casing top and covers the casing open-top completely, the top that the casing is close to the lower vertical.
By adopting the technical scheme, when in use, the base material is placed above the airfoil plate, the interval between the base material and the inclined section is ensured, the plug of the gas collection chamber is inserted into the connecting port, the sealing element can seal the contact position of the plug of the gas collection chamber and the edge of the connecting port, thereby improving the air tightness of the shell, the plug of the air collection chamber blows out air which can be discharged out of the shell from the air outlet after entering the shell and is uniformly sprayed out from the gap between the bending section and the inclined section, because of the coanda effect of the gas flow, the gas flow will follow the outer wall of the inclined section, and because the space between the substrate and the inclined section becomes gradually narrower, a negative pressure is formed, the suction is generated on the base material, but the base material cannot be contacted with the airfoil plate due to the existence of the airflow, the base material is in a suspension state, the base material is prevented from being scratched, and the suspension operation of the low-tension base material can be realized due to the traction effect of the airflow.
The present invention in a preferred example may be further configured to: the sealing element comprises a sealing groove plate and a sealing ring arranged in the sealing groove plate, and the sealing groove plate and the sealing ring are distributed around the connecting port.
Through adopting above-mentioned technical scheme, during the use, the plug of collection chamber is inserted into the casing from the connector, and the seal ring encircles around the plug of collection chamber and with the laminating of the plug of collection chamber to the realization is to the filling of the gap of collection chamber plug and connector edge, plays the effect that improves the leakproofness.
The present invention in a preferred example may be further configured to: two be connected with even aerofoil between the vertical section one, even aerofoil includes two vertical sections two and is located the horizontal segment between two vertical sections two, two vertical section two laminates with two vertical sections one respectively, set up a plurality of evenly distributed's even wind hole on the horizontal segment.
Through adopting above-mentioned technical scheme, the even aerofoil is passed at first from even wind hole to gas in the casing, then just can follow the exhaust vent casing, and even aerofoil can improve the stationarity and the degree of consistency that gas flows to it is more steady when making the air current blow off from in the casing.
The present invention in a preferred example may be further configured to: the vertical side wall, the first vertical section and the second vertical section of the shell are connected through rivets.
Through adopting above-mentioned technical scheme, riveted connected mode is firm reliable, and can avoid traditional welded connected mode to cause the harmful effects of deformation to casing, aerofoil board and even aerofoil.
The present invention in a preferred example may be further configured to: the casing is connected with the finned plate on being close to the outer wall of the vertical lateral wall of the higher one end of slope section, the finned plate includes the linkage segment of vertical setting and the drainage section that the slope set up, the outer wall laminating of the vertical lateral wall that the linkage segment is close to the higher one end of slope section with the casing, the higher one end of drainage section is connected with the top of linkage segment and the drainage section extends to the direction of keeping away from the slope section, a plurality of inlet ports have still been seted up in the drainage section.
Through adopting above-mentioned technical scheme, the air current leaves behind the aerofoil board, can continue to flow along the fin board steadily forward to can continue transporting the substrate, and owing to set up the inlet port, the air of fin board below can pass the inlet port and enter into between fin board and the substrate, makes the air current of flowing forward stable, has guaranteed that the air current can carry out steady transportation to the substrate.
The present invention in a preferred example may be further configured to: the vertical side wall, the first vertical section and the connecting section of the shell are connected through rivets.
Through adopting above-mentioned technical scheme, riveted connected mode is firm reliable, and can avoid traditional welded connected mode to cause the harmful effects of deformation to casing and fin.
The present invention in a preferred example may be further configured to: the bottom surface of drainage section is connected with the support, the one end that the drainage section was kept away from to the support is connected with the vertical lateral wall that casing and linkage segment are connected.
Through adopting above-mentioned technical scheme, the support can support the finned plate, has improved the stability of finned plate.
In summary, the invention has the following beneficial technical effects:
after the gas collection chamber blows out gas, gas firstly passes through the uniform air plate, then is discharged from the air outlet hole to the shell, and then gas blows out from the gap between the bending section and the wing-shaped plate, and flows to the wing plate along the outer wall of the wing-shaped plate, and the air current can form negative pressure and generate suction to the substrate in the moving process, but because the existence of the air current, the substrate can not contact with the wing-shaped plate, so the air current can generate traction force to the substrate, thereby the suspension transportation to the low-tension substrate is realized.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an airfoil nozzle for levitation transport of a low tension material embodying an embodiment;
FIG. 2 is a schematic view showing a structure of a sealing groove plate used in an embodiment;
FIG. 3 is a schematic view of a structure for embodying an airfoil plate in the embodiment;
FIG. 4 is a schematic view for embodying the structure of the air distribution plate in the embodiment;
fig. 5 is a schematic view for embodying the structure of the fin plate in the embodiment.
In the figure, 1, a housing; 2. a gas collection chamber; 3. a seal member; 31. sealing the slot plate; 32. a seal ring; 4. an airfoil plate; 41. a first vertical section; 42. an inclined section; 5. bending sections; 6. an air outlet; 7. a wind homogenizing plate; 71. a second vertical section; 72. a horizontal segment; 8. air homogenizing holes; 9. a fin plate; 91. a connecting section; 92. a drainage section; 10. a support; 11. welding a nut; 12. a substrate; 13. and (4) air inlet holes.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b):
referring to fig. 1-5, the airfoil nozzle for suspension transport of low-tension materials disclosed by the invention comprises a housing 1, wherein the top of the housing 1 is open, a connection port for inserting a plug of a gas collection chamber 2 is formed in the center of the bottom surface of the housing 1, and a sealing element 3 for improving the gas tightness of the housing 1 is arranged on the inner bottom surface of the housing 1.
The sealing element 3 comprises a sealing groove plate 31 and a sealing ring 32, the sealing groove plate 31 is welded on the inner side wall of the shell 1, the sealing groove plate 31 surrounds the connecting port and is distributed, the sealing ring 32 is bonded in the sealing groove plate 31, and the sealing ring 32 follows the sealing groove plate 31 and surrounds the connecting port and is distributed.
An aerofoil plate 4 is connected at the opening at the top of the shell 1, the aerofoil plate 4 comprises two first vertical sections 41 and an inclined section 42 positioned between the two first vertical sections 41, and the two first vertical sections 41 and the inclined section 42 are integrally formed. The two first vertical sections 41 are respectively attached to and connected with two opposite vertical inner side walls of the shell 1, and the inclined section 42 is located at the opening at the top of the shell 1 and completely covers the opening at the top of the shell 1. The top that casing 1 is close to the vertical lateral wall of the lower one end of slope section 42 height is equipped with the section of bending 5, and the section of bending 5 highly is higher than the minimum of slope section 42, and the section of bending 5 is buckled and is left the gap between the tip of section of bending 5 and the slope section 42 to the direction that is close to slope section 42, and the exhaust vent 6 that a plurality of evenly distributed was seted up to the part that slope section 42 highly is less than the section of bending 5 top.
The air distribution plate 7 is connected between the two first vertical sections 41, the air distribution plate 7 comprises two second vertical sections 71 and a horizontal section 72 positioned between the two second vertical sections 71, and the two second vertical sections 71 and the horizontal section 72 are integrally formed. The two vertical sections 71 are respectively attached to the two first vertical sections 41, and in order to ensure the connection stability of the uniform air plate 7 with the aerofoil plate 4 and the shell 1, the shell 1 is connected with the vertical side wall attached to the first vertical section 41, the first vertical section 41 and the second vertical section 71 through a plurality of rivets. The horizontal section 72 is provided with a plurality of uniformly distributed air uniform holes 8.
The outer wall of the vertical side wall of the shell 1 close to the higher end of the inclined section 42 is connected with a fin plate 9, and the fin plate 9 comprises a connecting section 91 in vertical arrangement and a drainage section 92 in inclined arrangement. The outer wall laminating of the vertical lateral wall that the linkage segment 91 is close to the higher one end of slope section 42 with casing 1, in order to guarantee the stability that fin 9 is connected with casing 1, linkage segment 91, vertical section one 41 and casing 1 are close to the vertical lateral wall of the higher one end of slope section 42 and pass through a plurality of rivet connections. The higher one end of drainage section 92 and the top integrated into one piece of linkage segment 91 and drainage section 92 extend to the direction of keeping away from slope section 42, have still seted up a plurality of inlet ports 13 on the drainage section 92.
The bottom surface welding of drainage section 92 has support 10, and the bottom welding of the inner wall of the vertical lateral wall that casing 1 and linkage segment 91 are connected has weld nut 11, and the one end that drainage section 92 was kept away from to support 10 is passed through weld nut 11 and the cooperation of screw and is realized being connected with casing 1, and support 10 keeps away from the one end of drainage section 92 and has seted up waist type hole (not shown in the figure), and the length direction in waist type hole is vertical direction, and the screw passes waist type hole and is connected with weld nut 11. The support 10 can support the fin plate 9, so that the stability of the fin plate 9 is improved; the setting in waist type hole makes the staff can keep away from the height of drainage section 92 one end to support 10 and adjust to the depth of parallelism that can adjust the installation of finned plate 9, the finned plate 9 of being convenient for plays the drainage effect.
The working principle of the invention is as follows:
in use, the low tension substrate 12 is placed over the aerofoil plate 4 with a space between the substrate 12 and the aerofoil plate 4; the plug of the gas collection chamber 2 is inserted into the connecting port, and at the moment, the sealing ring 32 is tightly attached to the outer wall of the plug of the gas collection chamber 2, so that gas sprayed out of the gas collection chamber 2 is prevented from being discharged out of the shell 1 from the connecting port, and the air tightness of the shell 1 is improved;
after entering the shell 1, the gas sprayed out of the gas collection chamber 2 passes through the gas uniform holes 8 and enters the space between the gas uniform plate 7 and the airfoil plate 4, then passes through the air outlet holes 6 and is discharged out of the shell 1, and is uniformly sprayed out from the gap between the bending section 5 and the inclined section 42, because of the wall attachment effect of the gas flow, the gas flow can advance along the outer wall of the inclined section 42, because the space between the base material 12 and the inclined section 42 is gradually narrowed, negative pressure is formed, suction is generated on the base material 12, but because of the existence of the gas flow, the base material 12 cannot be contacted with the airfoil plate 4, the base material 12 is in a suspension state, the base material 12 is prevented from being scratched, and because of the traction effect of the gas flow, the suspension transportation of the low-tension base;
in addition, because the air inlet hole 13 is formed in the fin plate 9, air below the fin plate 9 can enter between the fin plate 9 and the base material 12 through the air inlet hole 13, forward flowing air flow is stable, and therefore the base material 12 can be stably transported by the air flow.
In summary, the airfoil nozzle for the suspension transportation of the low-tension material provided by the embodiment has the advantage that the suspension transportation of the low-tension material can be realized.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, 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. An airfoil nozzle for low tension material aerosol delivery comprising a housing (1), characterized by: the top of the shell (1) is provided with an opening, the bottom surface of the shell (1) is provided with a connecting port for inserting a plug of the gas collection chamber (2), and the inner bottom surface of the shell (1) is provided with a sealing element (3) for improving the gas tightness of the shell (1); an airfoil plate (4) is connected at the opening at the top of the shell (1), the airfoil plate (4) comprises two first vertical sections (41) and an inclined section (42) positioned between the two first vertical sections (41), the two first vertical sections (41) are respectively jointed and connected with two opposite vertical inner side walls of the shell (1), the inclined section (42) is positioned at the opening at the top of the shell (1) and completely covers the opening at the top of the shell (1), the top end of the vertical side wall of the shell (1) close to the lower end of the inclined section (42) is provided with a bending section (5), the height of the bending section (5) is higher than the lowest point of the inclined section (42), the bending section (5) is bent towards the direction close to the inclined section (42), a gap is reserved between the end part of the bending section (5) and the inclined section (42), the part of the inclined section (42) with the height lower than the top end of the bending section (5) is provided with a plurality of air outlet holes (6) which are uniformly distributed.
2. An airfoil nozzle for levitation transport of low tension materials as recited in claim 1 wherein: the sealing element (3) comprises a sealing groove plate (31) and a sealing ring (32) arranged in the sealing groove plate (31), and the sealing groove plate (31) and the sealing ring (32) are distributed around the connecting port.
3. An airfoil nozzle for levitation transport of low tension materials as recited in claim 1 wherein: two be connected with even aerofoil (7) between vertical section (41), even aerofoil (7) include two vertical section two (71) and be located horizontal segment (72) between two vertical section two (71), two vertical section two (71) laminate with two vertical section one (41) respectively, even wind hole (8) of a plurality of evenly distributed have been seted up on horizontal segment (72).
4. An airfoil nozzle for levitation transport of low tension materials as recited in claim 3 wherein: the vertical side wall of the shell (1), the first vertical section (41) and the second vertical section (71) are connected through rivets.
5. An airfoil nozzle for levitation transport of low tension materials as recited in claim 1 wherein: be connected with fin board (9) on the outer wall of casing (1) vertical lateral wall near the higher one end of slope section (42), fin board (9) are including linkage segment (91) of vertical setting and drainage section (92) that the slope set up, linkage segment (91) and casing (1) are close to the outer wall laminating of the vertical lateral wall of the higher one end of slope section (42), the higher one end of drainage section (92) is connected and drainage section (92) extend to the direction of keeping away from slope section (42) with the top of linkage segment (91), still seted up a plurality of inlet ports (13) on drainage section (92).
6. An airfoil nozzle for levitation transport of low tension material as recited in claim 5 wherein: the vertical side wall of the shell (1), the first vertical section (41) and the connecting section (91) are connected through rivets.
7. An airfoil nozzle for levitation transport of low tension material as recited in claim 6 wherein: the bottom surface of drainage section (92) is connected with support (10), the one end that drainage section (92) was kept away from in support (10) is connected with the vertical lateral wall that casing (1) and linkage segment (91) are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011215673.0A CN112278959A (en) | 2020-11-04 | 2020-11-04 | Airfoil nozzle for suspension conveying of low-tension materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011215673.0A CN112278959A (en) | 2020-11-04 | 2020-11-04 | Airfoil nozzle for suspension conveying of low-tension materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112278959A true CN112278959A (en) | 2021-01-29 |
Family
ID=74351511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011215673.0A Pending CN112278959A (en) | 2020-11-04 | 2020-11-04 | Airfoil nozzle for suspension conveying of low-tension materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112278959A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335979A (en) * | 2021-06-17 | 2021-09-03 | 深圳吉阳智能科技有限公司 | Airflow suspension device and lithium battery production equipment |
| CN116453992A (en) * | 2023-06-09 | 2023-07-18 | 成都中嘉微视科技有限公司 | Air bearing plate with steady flow structure |
-
2020
- 2020-11-04 CN CN202011215673.0A patent/CN112278959A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335979A (en) * | 2021-06-17 | 2021-09-03 | 深圳吉阳智能科技有限公司 | Airflow suspension device and lithium battery production equipment |
| CN116453992A (en) * | 2023-06-09 | 2023-07-18 | 成都中嘉微视科技有限公司 | Air bearing plate with steady flow structure |
| CN116453992B (en) * | 2023-06-09 | 2023-09-05 | 成都中嘉微视科技有限公司 | Air bearing plate with steady flow structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112278959A (en) | Airfoil nozzle for suspension conveying of low-tension materials | |
| KR100592150B1 (en) | Gas turbine bucket with impingement cooled platform | |
| CN103206845B (en) | Air chamber for baking oven and baking oven | |
| CN207395303U (en) | A kind of efficient water-removing device of material strip | |
| CN213536723U (en) | Airfoil nozzle for suspension conveying of low-tension materials | |
| CN207345152U (en) | A kind of apple packing carton production dryer | |
| CN207297468U (en) | Wind-guiding structure and fan | |
| CN213792589U (en) | Conveying device for double-sided coated base material | |
| CN209946097U (en) | Formaldehyde sensor and air purification device | |
| CN112221882A (en) | Conveying device for double-sided coated base material | |
| CN110338644A (en) | A kind of row's equipment for steam treatment of steam box | |
| CN210808061U (en) | Can prevent direct current freezer master control board of steam liquefaction | |
| CN210623226U (en) | Novel mining atmospheric pressure draught fan | |
| CN208528311U (en) | A kind of double galvanometer station dust-extraction units | |
| CN205744361U (en) | A kind of heat abstractor of air compressor machine | |
| CN206222460U (en) | Indoor set | |
| CN206190605U (en) | A aircraft nose and bladeless fan for bladeless fan | |
| CN220093375U (en) | Dust collecting device and laser drilling equipment | |
| CN215554688U (en) | Dust collector before sealing | |
| CN214735933U (en) | Gas suspension nozzle and gas suspension annealing furnace | |
| CN215797097U (en) | Pneumatic blowing system of Roots blower | |
| CN216756807U (en) | Anti-toppling blowing nozzle structure | |
| CN220000753U (en) | Atomizing device and atomized product | |
| CN217799575U (en) | Laser welding dust removal structure | |
| CN116871142A (en) | Air nozzle and oven structure |
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 |