CN115106254B - Adjustable clearance scraping gun - Google Patents
Adjustable clearance scraping gun Download PDFInfo
- Publication number
- CN115106254B CN115106254B CN202210779264.6A CN202210779264A CN115106254B CN 115106254 B CN115106254 B CN 115106254B CN 202210779264 A CN202210779264 A CN 202210779264A CN 115106254 B CN115106254 B CN 115106254B
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- Prior art keywords
- glue
- elastic steel
- steel plate
- inlet
- area
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/001—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work incorporating means for heating or cooling the liquid or other fluent material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
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- Coating Apparatus (AREA)
Abstract
The application relates to the field of disposable sanitary production equipment, in particular to an adjustable gap scraping gun which is low in production cost and capable of uniformly sizing.
Description
Technical Field
The application relates to the field of disposable sanitary production equipment, in particular to an adjustable gap scraping gun.
Background
The utility model provides a structure of current coating glue applicator, as the inventor is at 202011460243.5 of a patent application number of 12 month 11 day in 2020, patent name is a glue scraping plate of even glue application coating, and its detail discloses a glue scraping plate of even glue application coating, including the glue scraping plate body, the glue scraping plate body includes installation department and locates on the installation department back glue and scrape the lip, be equipped with into gluey hole and the glue applying groove that is used for coating on the back glue to scrape the lip, the length direction that defines along the glue applying groove extends to the transverse direction, and the width direction that extends to the longitudinal direction along it, be equipped with two glue feeding grooves of intercommunication two between glue feeding hole and the glue applying groove, two glue feeding groove is axisymmetrically along glue applying groove perpendicular bisector and sets up, and the contained angle between the two glue feeding groove is 92%, the sizing tank is characterized in that semicircular arc structures are arranged at the two transverse ends of the sizing tank, the distance between the transverse end of the sizing tank and the intersection point of the transverse central axis of the sizing tank and the central axis of the glue feeding tank is equal to the distance between the middle point of the sizing tank and the intersection point of the transverse central axis of the sizing tank and the central axis of the glue feeding tank, the depth dimension of the glue feeding tank is 1.5mm, and the width dimension of the glue feeding tank is 2.5mm.
However, in practical use, it is found that the hot melt adhesive belongs to a fluid with high viscosity, and has a large instantaneous resistance with the doctor blade, so that the flow rate is different, and the flow rate controlled by pressure is different, so that the resistance is also changed, and the glue applying thickness of each glue channel is different at different speeds.
Disclosure of Invention
Accordingly, in view of the above-described problems, the present application provides an adjustable gap doctor blade which is inexpensive to produce and which is capable of uniform sizing.
In order to achieve the above purpose, the present application adopts the following technical scheme:
the utility model provides an adjustable clearance is scraped rifle, includes spouts gluey subassembly, spouts gluey mouth, scrapes gluey board, copper plate and elastic steel plate, spout gluey mouth and locate the output of spouting gluey subassembly, spout gluey mouth and have spouting gluey mouth, copper plate, elastic steel plate and frictioning board pass through the bolt locking on spouting gluey mouth, the middle part of copper plate is equipped with the first through-hole with spouting gluey mouth intercommunication, be equipped with a plurality of glue application runners between the lower extreme of copper plate, the middle part of elastic steel plate is equipped with the second through-hole with first through-hole intercommunication, be equipped with on the elastic steel plate with the play gluey groove of each glue application runner intercommunication, be equipped with into gluey mouth, two glue feeding grooves and glue application groove on the side of being close to the elastic steel plate, glue feeding mouth and second through-hole intercommunication, two glue feeding groove's one end and glue feeding groove are connected with glue feeding groove's horizontal both ends respectively, glue feeding mouth, two glue feeding grooves and groove one glue feeding groove and glue feeding groove size of a small in the size of the depth dimension of glue overflow area.
Further, the overflow glue area is provided with an overflow channel with a fan-shaped structure, the circle center of the overflow channel coincides with the circle center of the glue inlet, the glue applying groove is provided with a first glue feeding area connected with the overflow channel, a second glue applying area connected with the two glue feeding grooves and a pressure balance area between the first glue applying area and the second glue applying area, and the pressure balance area is distributed on the copper plate and positioned between two adjacent glue applying flow channels.
Further, the bottom surface of the overflow channel is of a curved surface structure, the depth dimension of the overflow channel is gradually reduced from the glue inlet to the glue applying groove, and the depth dimension of the overflow channel is gradually reduced from two glue inlet grooves to the middle part.
Further, the thickness dimension of the red copper plate is 0.12 mm-0.18 mm.
Further, the thickness dimension of the elastic steel plate is 0.16 mm-0.22 mm.
Further, the width dimension of the sizing flow channel is 3 mm-6 mm.
Further, screw holes with the same number as the glue applying flow channels are formed in the glue scraping plate, adjusting bolts are connected in the screw holes in a threaded mode, and the free ends of the rod portions of the adjusting bolts are abutted to the elastic steel plates and located at the glue applying flow channels.
Further, the free end of the rod portion of the adjusting bolt is in a conical structure, and the conical angle of the free end is 136 degrees.
Further, an included angle between the central axis of the threaded hole and the elastic steel plate is 112 degrees.
By adopting the technical scheme, the application has the beneficial effects that: this adjustable clearance scrapes rifle, spout the glue subassembly with hot melt adhesive heating and pump through spouting the glue mouth, the second through-hole on by the first through-hole on the red copper, the elastic steel plate enters into the glue inlet of scraping the glue board, and enter into the glueing inslot by glue inlet and overflow area, the auxiliary regulation of hot melt adhesive volume is carried out to the rethread glueing groove, specificly, because the degree of depth size in overflow area is less than the degree of depth size of glue inlet, the hot melt adhesive that gets into by the glue inlet first flows through glue inlet groove, the flow of hot melt adhesive is less at this moment, the velocity of flow is slower, along with the pump of hot melt adhesive two promotion, unnecessary hot melt adhesive diffuse-in overflow area, the middle part of gluing groove is entered into by overflow area again, and the flow length of glue inlet groove is greater than the flow length of glue inlet area, but the contact area of hot melt adhesive on the overflow area with hot melt adhesive produces the velocity of flow difference, the hot melt adhesive that is in two places passes through glue outlet groove on the elastic steel plate and gets into the glue inlet groove and flows, the flow channel is gone into the glue inlet channel through the glue inlet groove, the glue inlet channel is carried out the glue flow, the glue storage size is improved by the glue storage device is greatly, the glue storage is realized, the glue storage is greatly improved, the glue storage device is greatly improved, the cost is realized, and the glue storage device is greatly improved, and can be used by the glue storage device is greatly improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view of a glue nozzle, a glue scraping plate, a copper plate and an elastic steel plate in an embodiment of the application;
FIG. 3 is a schematic top view of a glue nozzle, a glue scraping plate, a copper plate and an elastic steel plate according to an embodiment of the application;
FIG. 4 is an enlarged view of a portion of FIG. 3 at C;
FIG. 5 is a schematic view of a doctor blade according to an embodiment of the present application;
FIG. 6 is a schematic cross-sectional view of the structure at A-A in FIG. 5;
FIG. 7 is a schematic view of the structure of a copper plate in an embodiment of the present application;
FIG. 8 is a schematic structural view of an elastic steel sheet according to an embodiment of the present application;
FIG. 9 is a schematic view of another construction of the glue application plate according to the embodiment of the present application;
FIG. 10 is a schematic cross-sectional view of the structure at B-B in FIG. 9;
fig. 11 is a partial enlarged view at D in fig. 10.
Description of the embodiments
The application will now be further described with reference to the drawings and detailed description.
The embodiment of the application comprises the following steps:
referring to fig. 1 to 8, an adjustable gap scraping gun comprises a glue spraying assembly 1, a glue spraying nozzle 2, a glue scraping plate 3, a copper plate 4 and an elastic steel plate 5, wherein the glue spraying nozzle 2 is arranged at the output end of the glue spraying assembly 1, the glue spraying nozzle 2 is provided with a glue spraying opening 201, the copper plate 4, the elastic steel plate 5 and the glue scraping plate 3 are locked on the glue spraying nozzle 2 through bolts, a first through hole 401 communicated with the glue spraying opening 201 is arranged in the middle of the copper plate 4, four glue applying channels 402 are arranged at the lower end of the copper plate 4, a second through hole 501 communicated with the first through hole 401 is arranged in the middle of the elastic steel plate 5, glue outlet grooves 502 communicated with the glue applying channels 402 are formed in the elastic steel plate 5, glue inlet 301, two glue inlet grooves 302 and glue applying grooves 303 are formed in one side surface of the glue scraping plate 3, the glue inlet 301 is communicated with the second through holes 501, the glue outlet grooves 303 are communicated with the glue outlet grooves 502, the glue inlet 302 and the glue inlet grooves 302 are formed in the two glue inlet grooves 302 and the two glue inlet grooves 302 are respectively, and the glue overflow areas are formed in the two lateral dimensions and have small size and are respectively connected with the glue inlet grooves 303.
The adjustable gap scraping gun comprises a glue spraying component 1, a glue spraying nozzle 2, a first through hole 401 on a red copper plate 4 and a second through hole 501 on an elastic steel plate 5 are used for sending hot melt glue into a glue inlet 301 of a glue scraping plate 3, a glue inlet 302 and a glue overflow area 304 are used for sending the hot melt glue into a glue applying groove 303, the glue applying groove 303 is used for carrying out auxiliary adjustment on the hot melt glue quantity, specifically, the depth dimension of the glue overflow area 304 is smaller than that of the glue inlet 302, the hot melt glue initially sent by the glue inlet 301 flows preferentially through the glue inlet 302, at the moment, the flow rate of the hot melt glue is smaller, the flow rate is slower, along with the pumping of the hot melt glue, the hot melt glue is lifted up, the redundant hot melt glue is diffused into the glue overflow area 304, and then flows into the middle part of the glue applying groove 303 from the glue overflow area 304, the flowing length of the glue inlet groove 302 is larger than that of the glue overflow area 304, but the contact area between the glue overflow area 304 and the hot melt glue is larger than that between the glue inlet groove 302 and the hot melt glue, so that the flow speed difference is generated between the hot melt glue in the two areas, the hot melt glue in the glue applying groove 303 enters the glue applying flow channel 402 on the copper plate 4 through the glue outlet groove 502 on the elastic steel plate 5, and then flows out of the glue applying flow channel 402 to apply glue, the glue amount in each glue applying flow channel 402 is uniform due to the auxiliary adjustment of the glue applying groove 302 and the flow limiting effect of the glue storage, the glue applying quality is improved, the structure of the glue scraping gun is simple, small improvement and upgrading can be performed on the basis of the existing equipment, great progress is realized, and the production cost is greatly reduced.
The overflow glue areas 304 are provided with overflow channels 305 with fan-shaped structures, the circle centers of the overflow channels 305 are overlapped with the circle centers of the glue inlet 301, the glue applying grooves 303 are provided with a first glue inlet area 306 connected with the overflow channels 305, a second glue applying area 307 connected with the two glue inlet grooves 302, and a pressure balancing area 308 between the first glue applying area 306 and the second glue applying area 307, the pressure balancing area 308 is distributed on the copper plate 4 and is positioned between two adjacent glue applying flow channels 402, the bottom surfaces of the overflow channels 305 are of curved structures, the depth dimension of the overflow channels 305 is gradually reduced from the glue inlet 301 to the glue applying grooves 303, the depth dimension of the overflow channels 305 is gradually reduced from the two glue inlet grooves 302 to the middle, the circle centers of the overflow channels 305 with the fan-shaped structures are overlapped with the circle centers of the glue inlet 301, and the hot melt glue at the upper parts of the glue inlet 301 is diffused into the overflow channels 305, and the bottom surfaces of the overflow channels 305 are of curved structures are arranged, and the hot melt glue is guided to flow and the glue applying areas of the flow channels 303 are uniformly contacted with the glue applying channels 303.
Further, referring to fig. 3 and 4, the thickness dimension of the copper plate 4 is 0.12mm to 0.18mm, preferably 0.15mm, the thickness dimension of the elastic steel plate 5 is 0.16mm to 0.22mm, preferably 0.2mm, the width dimension of the glue applying runner 402 is 3mm to 6mm, preferably 4.5mm, the number of screw holes 6 which are the same as the number of the glue applying runners 402 are arranged on the glue scraping plate 3, the screw holes 6 are internally connected with adjusting bolts 7 in a threaded manner, and the free ends of the rod parts of the adjusting bolts 7 are abutted against the elastic steel plate 5 and are positioned at the glue applying runners 402.
In rotatory adjusting bolt 7 feeds, make adjusting bolt 7 extrude elastic steel sheet 5, make it form elastic deformation, and imbed in the glueing runner 402, and then the flow area in making glueing runner 402 changes, thereby adjust the flow of hot melt adhesive in each glueing runner 402, make the homogeneity of each glueing runner 402 further promote, and through adjusting bolt 7's regulation mode, the staff is convenient for carry out manual adjustment according to the operating experience in the equipment operation, improve the convenience of use, and through the elastic steel sheet 5 that sets up, and can avoid adjusting bolt 7 and the direct contact of hot melt adhesive, and then avoid hot melt adhesive to ooze by adjusting bolt 7 and screw hole 6 junction, simultaneously, through adjusting bolt 7 extrusion elastic steel sheet 5 deformation realization glueing runner 402's flow area regulation's mode, can be great improvement regulation proportion, for example glueing runner 402 cross-section area is 0.15 x 4.5 cross-section glue outlet 0.675 square millimeter when unadjusted, purple copper plate 4 thickness 0.15mm, reduce to the area when the feed volume through adjusting bolt 7 is 0.0743 mm: 0.526 square millimeters, by 0.675-0.526 = 0.149 square millimeters, by about 22%.
Meanwhile, the free end of the rod part of the adjusting bolt 7 is of a conical structure 8, the conical angle of the free end is 136 degrees, the included angle between the central axis of the threaded hole 6 and the elastic steel plate 5 is 112 degrees, so that the contact area between the adjusting bolt 7 and the elastic steel plate 5 is increased, the problem that the elastic steel plate 5 is difficult to reset after the deformation of the adjusting bolt 7 is caused under the condition that the feeding amount of the adjusting bolt 7 is too large is avoided, the adjustment of a larger line contact mode is realized, the popular area size of the sizing runner 402 can be adjusted under the condition that the feeding amount of the adjusting bolt 7 is smaller, and the adjustment accuracy is greatly improved.
In this embodiment, referring to fig. 9, 10 and 11, because the first glue feeding area 306 and the second glue feeding area 307 are disposed at the connection position of the glue applying groove 303 and the glue overflow area 304 and the glue feeding groove 302, a pressure balance area 308 is formed between the first glue feeding area 306 and the second glue feeding area 307, and the glue storage and glue supplementing at the first glue feeding area 306 and the second glue feeding area 307 are formed by the pressure in the pressure balance area 308 and the contact area form with the hot melt glue, so that the glue feeding amount at the first glue feeding area 306 and the second glue feeding area 307 is balanced, and the hot melt glue entering the glue applying runner 402 is even, however, in the automatic adjusting mode, the adjusting glue amount is smaller, thereby, the surface that just is located pressure balance area 308 in glue applying groove 303 sets up to the roughness, and its roughness is 25, can adjust the initial frictional force that gets into between hot melt adhesive in pressure balance area 308 and glue applying groove 303 to, be equipped with recess 8 through glue applying groove 303 in and be located pressure balance area 308's bottom surface concave, be equipped with spring 9 and be arc structure's kickup block 10 in the recess 8, the opening part of recess 8 inlays and is equipped with elastic membrane 11, jack up kickup block 10 through spring 9 for elastic membrane 11 imbeds in the recess 8, when pressure balance area 308 internal pressure changes, extrudes spring 9 through elastic membrane 11 and kickup block 10, makes the volume in the recess 8 change, and then changes the volume in the glue applying groove 303, makes the regulation glue water yield of pressure balance area 308 promote by a wide margin.
Furthermore, the glue inlet grooves 302 are distributed in the vertical middle of the glue applying flow channel 402, hot melt glue enters the glue applying flow channel 402 through the glue inlet grooves 302, so that the hot melt glue flows downwards under the self gravity and pumping pressure, when the quantity of the hot melt glue fluctuates, glue storage is realized by upward extrusion, the glue outlet uniformity of the glue applying flow channel is further improved, and the glue applying effect is good.
While the application has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the application as defined by the appended claims.
Claims (8)
1. The utility model provides an adjustable clearance scrapes rifle which characterized in that: the glue spraying device comprises a glue spraying assembly, a glue spraying nozzle, a glue scraping plate, a copper plate and an elastic steel plate, wherein the glue spraying nozzle is arranged at the output end of the glue spraying assembly, the glue spraying nozzle is provided with a glue spraying opening, the copper plate, the elastic steel plate and the glue scraping plate are locked on the glue spraying nozzle through bolts, the middle part of the copper plate is provided with a first through hole communicated with the glue spraying opening, the lower end of the copper plate is provided with a plurality of glue applying channels, the middle part of the elastic steel plate is provided with a second through hole communicated with the first through hole, the elastic steel plate is provided with glue outlet grooves communicated with the glue applying channels, a side surface of the glue scraping plate, which is close to the elastic steel plate, is provided with a glue inlet, two glue inlet grooves and glue applying grooves, one end of each glue inlet groove is communicated with the glue inlet, the other end of each glue inlet groove is respectively connected with the two ends of the glue applying grooves, the glue inlet grooves and the two glue inlet grooves form a glue applying area, the middle part is provided with a second through hole communicated with the first through hole, the glue inlet area is arranged on the elastic steel plate, the glue outlet is provided with a glue outlet groove close to the side surface of the elastic steel plate, the glue outlet is arranged on one side surface of the glue inlet is close to the elastic steel plate, the glue outlet is arranged on the glue outlet is in the glue outlet area, and the glue outlet is arranged on the glue outlet area, and the glue outlet area is arranged on the glue outlet area.
2. The adjustable gap scraper gun of claim 1, wherein: the bottom surface of overflow path is curved surface structure, the degree of depth size of overflow path is from advancing the gluey mouth to glueing groove direction taper down, the degree of depth size of overflow path is from two gluey grooves to middle part taper down.
3. The adjustable gap scraper gun of claim 1, wherein: the thickness dimension of the red copper plate is 0.12 mm-0.18 mm.
4. The adjustable gap scraper gun of claim 1, wherein: the thickness dimension of the elastic steel plate is 0.16 mm-0.22 mm.
5. The adjustable gap scraper gun of claim 1, wherein: the width of the sizing flow passage is 3 mm-6 mm.
6. The adjustable gap scraper gun of any one of claims 1-5, wherein: the glue scraping plate is provided with threaded holes with the same number as the glue applying flow passages, the threaded holes are internally connected with adjusting bolts in a threaded manner, and the free ends of the rod parts of the adjusting bolts are propped against the elastic steel plates and are positioned at the glue applying flow passages.
7. The adjustable gap scraper gun of claim 6, wherein: the free end of the rod part of the adjusting bolt is in a conical structure, and the conical angle of the free end is 136 degrees.
8. The adjustable gap scraper gun of claim 7, wherein: the included angle between the central axis of the threaded hole and the elastic steel plate is 112 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210779264.6A CN115106254B (en) | 2022-07-01 | 2022-07-01 | Adjustable clearance scraping gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210779264.6A CN115106254B (en) | 2022-07-01 | 2022-07-01 | Adjustable clearance scraping gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115106254A CN115106254A (en) | 2022-09-27 |
| CN115106254B true CN115106254B (en) | 2023-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210779264.6A Active CN115106254B (en) | 2022-07-01 | 2022-07-01 | Adjustable clearance scraping gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115106254B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06142591A (en) * | 1992-11-11 | 1994-05-24 | Mitsubishi Heavy Ind Ltd | Coating liquid nozzle |
| JP2000343017A (en) * | 1999-06-02 | 2000-12-12 | Hirano Tecseed Co Ltd | Coating device |
| CN101786067A (en) * | 2010-01-23 | 2010-07-28 | 深圳市浩能科技有限公司 | Porous feed type extrusion head |
| CN101797844A (en) * | 2003-03-26 | 2010-08-11 | 精工爱普生株式会社 | Liquid container |
| CN204182536U (en) * | 2014-10-20 | 2015-03-04 | 深圳市嘉美斯机电科技有限公司 | For the painting lip of PUR spray coating gun |
| CN112570194A (en) * | 2020-12-11 | 2021-03-30 | 福建恒安集团有限公司 | Glue applying plate capable of evenly applying glue and coating |
| CN112718381A (en) * | 2019-10-14 | 2021-04-30 | 怡定兴科技股份有限公司 | Slit type coating die head and slit type coating device |
| CN215940450U (en) * | 2021-04-07 | 2022-03-04 | 陈梓林 | Coating scraper with go out gluey function |
| CN114433422A (en) * | 2022-02-23 | 2022-05-06 | 深圳市曼恩斯特科技股份有限公司 | Coating die head and coating device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3962860B2 (en) * | 2002-02-19 | 2007-08-22 | 富士フイルム株式会社 | Coating device |
-
2022
- 2022-07-01 CN CN202210779264.6A patent/CN115106254B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06142591A (en) * | 1992-11-11 | 1994-05-24 | Mitsubishi Heavy Ind Ltd | Coating liquid nozzle |
| JP2000343017A (en) * | 1999-06-02 | 2000-12-12 | Hirano Tecseed Co Ltd | Coating device |
| CN101797844A (en) * | 2003-03-26 | 2010-08-11 | 精工爱普生株式会社 | Liquid container |
| CN101786067A (en) * | 2010-01-23 | 2010-07-28 | 深圳市浩能科技有限公司 | Porous feed type extrusion head |
| CN204182536U (en) * | 2014-10-20 | 2015-03-04 | 深圳市嘉美斯机电科技有限公司 | For the painting lip of PUR spray coating gun |
| CN112718381A (en) * | 2019-10-14 | 2021-04-30 | 怡定兴科技股份有限公司 | Slit type coating die head and slit type coating device |
| CN112570194A (en) * | 2020-12-11 | 2021-03-30 | 福建恒安集团有限公司 | Glue applying plate capable of evenly applying glue and coating |
| CN215940450U (en) * | 2021-04-07 | 2022-03-04 | 陈梓林 | Coating scraper with go out gluey function |
| CN114433422A (en) * | 2022-02-23 | 2022-05-06 | 深圳市曼恩斯特科技股份有限公司 | Coating die head and coating device |
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| Publication number | Publication date |
|---|---|
| CN115106254A (en) | 2022-09-27 |
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