CN112547335A - Atomizing and spraying device matched with mixing head in spraying type plate foaming machine - Google Patents
Atomizing and spraying device matched with mixing head in spraying type plate foaming machine Download PDFInfo
- Publication number
- CN112547335A CN112547335A CN202011557046.5A CN202011557046A CN112547335A CN 112547335 A CN112547335 A CN 112547335A CN 202011557046 A CN202011557046 A CN 202011557046A CN 112547335 A CN112547335 A CN 112547335A
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- Prior art keywords
- atomizing
- nozzle
- mixing head
- hole
- wall
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- 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.)
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- 238000005187 foaming Methods 0.000 title claims abstract description 46
- 238000005507 spraying Methods 0.000 title claims abstract description 29
- 238000000889 atomisation Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 7
- 241000405070 Percophidae Species 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000003595 mist Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 abstract 1
- 238000010030 laminating Methods 0.000 description 7
- 229920002635 polyurethane Polymers 0.000 description 6
- 239000004814 polyurethane Substances 0.000 description 6
- 229920005830 Polyurethane Foam Polymers 0.000 description 3
- 239000011496 polyurethane foam Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/0018—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/10—Spray pistols; Apparatus for discharge producing a swirling discharge
Landscapes
- Nozzles (AREA)
Abstract
本发明公开了一种喷涂式板材发泡机中与混合头配合的雾化喷射装置，包括：混合头底部连接有喷嘴座，喷嘴座中设有上下贯穿喷嘴座的安装孔，雾化喷嘴穿插连接在安装孔中；雾化喷嘴通过上下贯穿雾化喷嘴的雾化腔与混合头的圆柱形流道连通；雾化喷嘴的上段侧壁与安装孔壁之间具有间隙，使得雾化喷嘴、喷嘴座、混合头底壁之间形成气腔，气腔通过进气通道与外部连通、并通过雾化喷嘴的顶壁上的若干个气槽与雾化腔连通；雾化腔包括：倒锥台形段、直筒段及口径从上向下逐渐减少的弧形段，弧形段底部设有鸭嘴形喷嘴；气槽需满足如下要求：从气槽进入雾化腔的气体会沿雾化腔的侧壁流动并形成旋涡状气流。该装置雾化效果好、在板材生产时喷涂效率较高。
The invention discloses an atomizing spraying device matched with a mixing head in a spray-type sheet foaming machine, comprising: a nozzle seat is connected to the bottom of the mixing head; Connected in the installation hole; the atomizing nozzle is communicated with the cylindrical flow channel of the mixing head through the atomizing chamber that penetrates the atomizing nozzle up and down; there is a gap between the upper side wall of the atomizing nozzle and the wall of the installation hole, so that the atomizing nozzle, An air cavity is formed between the nozzle seat and the bottom wall of the mixing head, and the air cavity is communicated with the outside through the air inlet channel, and communicated with the atomization cavity through several air grooves on the top wall of the atomizing nozzle; the atomization cavity includes: an inverted cone The table-shaped section, the straight section and the arc-shaped section whose diameter gradually decreases from top to bottom, the bottom of the arc-shaped section is provided with a duckbill nozzle; the air groove must meet the following requirements: the gas entering the atomizing chamber from the air groove will flow along the atomizing chamber. The side wall of the vortex flows and forms a swirling airflow. The device has good atomization effect and high spraying efficiency during plate production.
Description
Technical Field
The invention relates to the technical field of polyurethane foaming equipment, in particular to an atomizing and spraying device matched with a mixing head in a spraying type plate foaming machine.
Background
The production steps of the cover plate of the automobile trunk tire cavity are as follows: (1) laying a laminated piece, wherein the laminated piece sequentially comprises glass fiber cloth, honeycomb paper boards and glass fiber cloth from top to bottom; (2) and spraying polyurethane foam material on the upper surface and the lower surface of the laminated member, placing the laminated member into a frame type hydraulic press for laminating and foaming, and finally forming the foamed cover plate. When the laminated piece is sprayed, the polyurethane foam material is firstly atomized and then sprayed on the upper surface and the lower surface of the laminated piece, then the polyurethane foam material on the upper surface and the lower surface is coated and covered on the upper surface and the lower surface of the whole laminated piece, and then foaming is carried out. A flow channel of the existing mixing head is cylindrical, and a polyurethane foaming material is atomized in the cylindrical flow channel and then is sprayed out from a circular outlet of the flow channel. The above method has the following disadvantages: after the polyurethane foaming material is atomized in the cylindrical flow channel, the polyurethane foaming material is directly sprayed out from the circular outlet of the flow channel, the polyurethane foaming material can be sprayed to only a small circular area on the surface of the laminated member under the outlet every time, and then the polyurethane foaming material in a plurality of small circular areas is uniformly coated on the surface of the whole laminated member.
Disclosure of Invention
The invention aims to: the atomizing and spraying device is good in atomizing effect, high in spraying efficiency during production of the plates, and capable of well guaranteeing quality of the foamed plates.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a with mixing head complex atomizing injection apparatus in spraying type panel foaming machine, includes: connect the nozzle holder in mixing head bottom, its characterized in that: the top wall of the nozzle seat is attached to the bottom wall of the mixing head, the nozzle seat is internally provided with an installation hole which vertically penetrates through the nozzle seat, and the atomizing nozzle is inserted and connected in the installation hole; the atomizing nozzle includes: an atomization cavity vertically penetrates through the atomization nozzle, and an opening at the top of the atomization cavity is in butt joint with an outlet at the bottom of a cylindrical flow passage in the mixing head; a gap is formed between the side wall of the upper section of the atomizing nozzle and the wall of the mounting hole, so that the atomizing nozzle, the nozzle seat and the bottom wall of the mixing head are matched to form a closed air cavity, the air cavity is communicated with the outside through an air inlet channel traversing the nozzle seat, and the air cavity is communicated with the atomizing cavity through a plurality of air grooves which are uniformly arranged on the top wall of the atomizing nozzle at intervals in the circumferential direction; the atomizing chamber includes: the inverted frustum-shaped section, the straight cylinder section and the arc-shaped section are sequentially arranged from top to bottom, the calibers of the inverted frustum-shaped section and the arc-shaped section are gradually reduced from top to bottom, and the bottom of the arc-shaped section is provided with a duckbilled nozzle; the arrangement mode of the air groove meets the following requirements: the gas entering the atomizing cavity from the gas cavity through the gas groove flows along the side wall of the atomizing cavity and forms vortex-shaped gas flow; during operation, high-pressure gas enters the air cavity from the air inlet channel, enters the atomizing cavity through the air groove and forms vortex-shaped airflow in the atomizing cavity, so that liquid foaming materials entering the atomizing cavity from the cylindrical flow channel are atomized, and the atomized foaming materials are finally sprayed out downwards from the duckbilled nozzle.
Further, the atomizing and spraying device matched with the mixing head in the spraying type plate foaming machine is characterized in that: four air grooves are uniformly distributed downwards on the top surface of the atomizing nozzle along the circumferential direction, and every two adjacent air grooves are perpendicular to each other.
Further, the atomizing and spraying device matched with the mixing head in the spraying type plate foaming machine is characterized in that: the mounting hole is a vertical step hole formed by a first through hole and a second through hole, the second through hole is positioned below the first through hole, and the aperture of the second through hole is smaller than that of the first through hole; the bottom of the mixing head is provided with a convex part, a cylindrical flow channel of the mixing head vertically penetrates through the convex part, the convex part downwards extends into the first through hole and abuts against the step surface of the mounting hole, and the nozzle seat is in threaded connection with the outer side wall of the convex part through an external thread section on the wall of the first through hole; be provided with first protruding circle on atomizing nozzle's the outer wall, atomizing nozzle alternates in the second through-hole and through first protruding circle and second through-hole wall threaded connection, and atomizing nozzle's roof laminating is on the diapire of bulge.
Further, the atomizing and spraying device matched with the mixing head in the spraying type plate foaming machine is characterized in that: there is also provided a sealing device for sealing the bottom of the air chamber, the sealing device comprising: the bottom cover of atomizing nozzle upper segment lateral wall is equipped with the sealing washer, and the bottom surface laminating of sealing washer is on the roof of first protruding circle, is provided with the protruding circle of second on the second through-hole wall, and the upper segment from bottom to top of atomizing nozzle passes the bottom opening of nozzle block in proper order, stretches into second through-hole upper portion behind the protruding circle of second, blocks the bottom of laminating at the protruding circle of second until the sealing washer card to it is sealed with the air cavity bottom, and the roof of atomizing nozzle is just in time laminated on the diapire of bulge this moment.
Further, the atomizing and spraying device matched with the mixing head in the spraying type plate foaming machine is characterized in that: the included angle between any generatrix of the side wall of the inverted frustum section of the atomizing cavity and the axis is 15-25 degrees.
Further, the atomizing and spraying device matched with the mixing head in the spraying type plate foaming machine is characterized in that: the caliber range of the straight cylinder section is 40-50% of the caliber of the top opening of the inverted frustum section.
The invention has the beneficial effects that: the atomizing chamber of the atomizing nozzle comprises: the back taper platform section that from top to bottom set gradually, straight section of thick bamboo section and segmental arc, the bottom of segmental arc is provided with duckbilled nozzle, back taper platform section and segmental arc bore all reduce from the top down gradually, a plurality of gas tank that the circumference interval evenly set up on atomizing nozzle's the roof, above structure makes high-pressure gas get into behind the atomizing chamber from the gas tank, gas can flow and form the swirl in the atomizing chamber along the lateral wall of atomizing chamber, can be from the high-efficient atomizing of the liquid foaming material that cylindrical runner got into the atomizing chamber like this, and distribute evenly in the atomizing chamber, and make atomizing foaming material follow duckbilled nozzle after the blowout downwards, can the wider area scope of diffusion blowout on the stromatolite, and the foaming material in this scope distributes evenly, thereby make subsequent work of paining simple more high-efficient, and the quality of foaming panel has been ensured.
Drawings
FIG. 1 is a schematic structural diagram of an atomizing and spraying device matched with a mixing head in a spray coating type plate foaming machine according to the invention;
FIG. 2 is a schematic view of the structure of the atomizing spray device;
FIG. 3 is a schematic structural view of an atomizing nozzle;
fig. 4 is a schematic top view of fig. 2.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the preferred embodiments.
As shown in fig. 1, 2 and 3, an atomizing and spraying device matched with a mixing head in a spray type plate foaming machine comprises: the nozzle seat 2 is connected to the bottom of the mixing head 1, the top wall of the nozzle seat 2 is attached to the bottom wall of the mixing head 1, the nozzle seat 2 is internally provided with an installation hole which vertically penetrates through the nozzle seat 2, and the atomizing nozzle 3 is inserted and connected in the installation hole; the atomizing nozzle 3 includes: an atomizing cavity 31 vertically penetrates through the atomizing nozzle, and an opening at the top of the atomizing cavity 31 is in butt joint with an outlet at the bottom of the cylindrical flow channel 11 in the mixing head 1; a gap is formed between the side wall of the upper section of the atomizing nozzle 3 and the wall of the mounting hole, so that a closed air cavity 4 is formed among the atomizing nozzle 3, the nozzle holder 2 and the bottom wall of the mixing head 1 in a matching manner, the air cavity 4 is communicated with the outside through an air inlet channel 21 traversing the nozzle holder 2, and the air cavity 4 is communicated with the atomizing cavity 31 through a plurality of air grooves 315 uniformly arranged on the top wall of the atomizing nozzle 3 at intervals in the circumferential direction; the atomizing chamber 31 includes: the nozzle comprises an inverted frustum-shaped section 311, a straight cylinder section 312 and an arc-shaped section 313 which are sequentially arranged from top to bottom, wherein the calibers of the inverted frustum-shaped section 311 and the arc-shaped section 313 are gradually reduced from top to bottom, and a duckbilled nozzle 314 is arranged at the bottom of the arc-shaped section 313; the gas tank 315 is arranged in a manner that satisfies the following requirements: the gas entering the atomizing chamber 31 from the gas chamber 4 through the gas groove 315 flows along the side wall of the atomizing chamber 31 and forms a vortex-shaped gas flow; during operation, high-pressure gas enters the air cavity 4 from the air inlet channel 21, then enters the atomizing cavity 31 through the air groove 315, forms vortex-shaped airflow in the atomizing cavity 31, atomizes the liquid foaming material entering the atomizing cavity 31 from the cylindrical flow channel 11, and finally the atomized foaming material is sprayed downwards from the duckbill-shaped nozzle 314. High-pressure gas gets into the back taper platform section 311 of atomizing chamber 31 and forms the vortex air current through a plurality of air groove 315, so can make liquid foaming material fully atomize in back taper platform section 311, straight cylindric section 312 in the atomizing chamber 31 makes the foaming material after the atomizing distribute evenly, simultaneously because the bore of atomizing chamber 31 diminishes from the top down, make the atmospheric pressure in the atomizing chamber 31 strengthen gradually, atomizing foaming material is from duckbilled nozzle 314 back of blowout down, can spread the more vast area scope of spun on the coincide, and the foaming material in this scope distributes evenly, thereby make subsequent simple high-efficient of work of paining, and the quality of foaming panel has been ensured.
In this embodiment, the mode that high-pressure gas enters the atomizing chamber 31 through the plurality of air grooves 315 is as shown in fig. 4, four air grooves 315 are equally divided downwards along the circumferential direction on the top surface of the atomizing nozzle 3, and every two adjacent air grooves 315 are perpendicular to each other, so that after the high-pressure gas enters the atomizing chamber 3 through the air grooves 315, the gas can flow along the side wall of the atomizing chamber 31 and form vortex-shaped airflow in the atomizing chamber 31, and thus the liquid foaming material entering the atomizing chamber 31 from the cylindrical flow channel 11 of the mixing head 1 is efficiently atomized in the atomizing chamber 31 and uniformly distributed.
As shown in fig. 1 and 2, the mounting hole is a vertical stepped hole formed by a first through hole 22 and a second through hole, the second through hole is located below the first through hole 22, and the aperture of the second through hole is smaller than that of the first through hole 22; mixing head bottom is equipped with bulge 12, and bulge 12 runs through from top to bottom in the cylindrical runner 11 of mixing head 1, and bulge 12 stretches into downwards in first through-hole 22 and supports and lean on the step face of mounting hole, and atomizing nozzle 3 alternates to be connected in the second through-hole and atomizing nozzle 3's roof laminating is on the diapire of bulge 12. The first through hole wall is provided with an internal thread section 221, and the side wall of the bulge 12 is provided with an external thread section, so that the nozzle holder 2 and the bulge 12 are in threaded connection. The purpose of the projections 12 is to position the nozzle holder 2 and the atomizing nozzle 3 for mounting.
The atomizing nozzle 3 is in threaded connection with the second through hole wall through the first convex ring 32 on the outer side wall, and a sealing device is further arranged for preventing high-pressure gas from leaking from the threaded connection part of the first convex ring 32 and the second through hole wall. The sealing device includes: the upper segment lateral wall bottom cover of atomizing nozzle 3 is equipped with sealing washer 5, the bottom surface laminating of sealing washer 5 is on the roof of first protruding circle 32, be provided with the protruding circle 23 of second on the second through-hole wall, atomizing nozzle 3 upper segment from bottom to top passes the bottom opening of nozzle block 2 in proper order, the protruding circle 23 of second stretches into second through-hole upper portion, block the laminating in the bottom of the protruding circle 23 of second until sealing washer 5, thereby sealed with the bottom of air cavity 4, the roof of atomizing nozzle 3 is just in time laminated on the diapire of bulge 12 this moment. In the present embodiment, the second bead 23 also serves as a positioning element when the atomizing nozzle 3 is assembled.
In this embodiment, an included angle between any generatrix of the side wall of the inverted frustum-shaped section 311 of the atomizing cavity 31 and the axis is 15 to 25 degrees, and the caliber of the straight cylinder section 312 is 40 to 50 percent of the caliber of the top opening of the frustum-shaped section 311.
The invention has the advantages that: the atomizing chamber 31 of the atomizing nozzle 3 includes: a reverse frustum section 311, a straight cylinder section 312 and an arc section 313 which are sequentially arranged from top to bottom, wherein the bottom of the arc section 313 is provided with a duckbill nozzle 314, the calibers of the reverse frustum section 311 and the arc section 313 are gradually reduced from top to bottom, a plurality of air grooves 315 are uniformly arranged on the top wall of the atomizing nozzle 3 at intervals in the circumferential direction, the above structure enables the high-pressure gas to flow along the side wall of the atomizing chamber 31 and form a vortex in the atomizing chamber 31 after entering the atomizing chamber 31 from the gas groove 315, thus, the liquid foaming material entering the atomizing cavity 31 from the cylindrical runner 11 can be efficiently atomized and uniformly distributed in the atomizing cavity 31, and after the atomized foaming material is sprayed downwards from the duckbill-shaped nozzle 314, can spread and spray a wider area range on the laminated body, and the foaming materials in the range are uniformly distributed, therefore, the subsequent coating work is simpler and more efficient, and the quality of the foaming plate is ensured.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011557046.5A CN112547335A (en) | 2020-12-25 | 2020-12-25 | Atomizing and spraying device matched with mixing head in spraying type plate foaming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011557046.5A CN112547335A (en) | 2020-12-25 | 2020-12-25 | Atomizing and spraying device matched with mixing head in spraying type plate foaming machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112547335A true CN112547335A (en) | 2021-03-26 |
Family
ID=75034075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011557046.5A Pending CN112547335A (en) | 2020-12-25 | 2020-12-25 | Atomizing and spraying device matched with mixing head in spraying type plate foaming machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112547335A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10165845A (en) * | 1996-12-10 | 1998-06-23 | Asahi Sanac Kk | Spray nozzle for high viscosity paint |
| CN1652876A (en) * | 2002-05-07 | 2005-08-10 | 喷洒系统公司 | Internal mix air atomizing spray nozzle assembly |
| KR200404745Y1 (en) * | 2005-10-20 | 2005-12-27 | 주식회사 거송시스템 | Two-Fluid Injection Nozzle |
| CN1935386A (en) * | 2005-09-23 | 2007-03-28 | 莱希勒有限公司 | Solid cone spray nozzle |
| US20110192910A1 (en) * | 2008-10-16 | 2011-08-11 | Urea Casale S. A. | Spraying Method and Nozzle for Atomization of a Liquid |
| CN104399615A (en) * | 2014-10-31 | 2015-03-11 | 中国神华能源股份有限公司 | Atomization injection device |
| CN104759369A (en) * | 2015-03-26 | 2015-07-08 | 成都来宝石油设备有限公司 | Steam atomizer |
| CN105834020A (en) * | 2016-04-27 | 2016-08-10 | 张家港力勤机械有限公司 | Outlet mechanism of discharging pipeline in mixing head with nozzle |
| CN107321514A (en) * | 2017-06-06 | 2017-11-07 | 西安航天动力研究所 | A kind of solid cone shaped pressure atomized fog jet |
| CN214234547U (en) * | 2020-12-25 | 2021-09-21 | 张家港力勤机械有限公司 | Atomizing and spraying device matched with mixing head in spray-coating type plate foaming machine |
-
2020
- 2020-12-25 CN CN202011557046.5A patent/CN112547335A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10165845A (en) * | 1996-12-10 | 1998-06-23 | Asahi Sanac Kk | Spray nozzle for high viscosity paint |
| CN1652876A (en) * | 2002-05-07 | 2005-08-10 | 喷洒系统公司 | Internal mix air atomizing spray nozzle assembly |
| CN1935386A (en) * | 2005-09-23 | 2007-03-28 | 莱希勒有限公司 | Solid cone spray nozzle |
| KR200404745Y1 (en) * | 2005-10-20 | 2005-12-27 | 주식회사 거송시스템 | Two-Fluid Injection Nozzle |
| US20110192910A1 (en) * | 2008-10-16 | 2011-08-11 | Urea Casale S. A. | Spraying Method and Nozzle for Atomization of a Liquid |
| CN104399615A (en) * | 2014-10-31 | 2015-03-11 | 中国神华能源股份有限公司 | Atomization injection device |
| CN104759369A (en) * | 2015-03-26 | 2015-07-08 | 成都来宝石油设备有限公司 | Steam atomizer |
| CN105834020A (en) * | 2016-04-27 | 2016-08-10 | 张家港力勤机械有限公司 | Outlet mechanism of discharging pipeline in mixing head with nozzle |
| CN107321514A (en) * | 2017-06-06 | 2017-11-07 | 西安航天动力研究所 | A kind of solid cone shaped pressure atomized fog jet |
| CN214234547U (en) * | 2020-12-25 | 2021-09-21 | 张家港力勤机械有限公司 | Atomizing and spraying device matched with mixing head in spray-coating type plate foaming machine |
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Application publication date: 20210326 |
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