CN217473843U

CN217473843U - Storage cup for powder coating

Info

Publication number: CN217473843U
Application number: CN202220925074.6U
Authority: CN
Inventors: 龙开成; 刘君; 龙开华; 龙开相; 毛鹏磊
Original assignee: Ningbo Licheng Coating Technology Co ltd
Current assignee: Ningbo Licheng Coating Technology Co ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-09-23
Anticipated expiration: 2032-04-20

Abstract

The application discloses powder coating's storage cup, including cup and whirl atomizer, be equipped with the cavity that is used for saving powder coating in the cup, be provided with the play powder mouth that is used for supplying powder coating to electrostatic spray gun on the cup, whirl atomizer include gas generating device and set up the fumarole at the cup wall, the gas that gas generating device produced is by the leading-in cavity of fumarole, cavity inner wall be the arcwall face, the leading-in gas of fumarole removes along cavity inner wall and produces the whirl. Parts such as a funnel cup, a powder pump, a stirrer motor and the like are omitted, the parts of the electrostatic spray gun in use and the weight of the parts are greatly simplified, and the electrostatic spray gun is convenient to use; the powder coating is atomized, and the phenomenon of uneven powder discharge in the spraying process is avoided.

Description

Storage cup for powder coating

Technical Field

The application relates to the field of electrostatic powder spraying, in particular to a storage cup for powder coating.

Background

The electrostatic powder spray gun is a spraying tool for surface coating, and is mainly used for electrostatic powder spraying of metal or surface conductive workpieces. The working principle of the electrostatic powder spray gun is as follows: under the drive of the powder sucking and conveying airflow from the Venturi powder pump, the powder paint flows through the powder conveying pipe into the gun body and is sprayed out from the nozzle of the gun head in atomized state, one electrode needle capable of releasing high voltage static electricity is set in the center of the nozzle and capable of radiating electrostatic field, and when the atomized powder paint passes through the high voltage electrostatic corona field, the powder is charged to carry electrostatic charge and adsorbed onto the grounded workpiece surface, and the powder paint flows through the pipeline into the high temperature drying tunnel to melt the powder and is cooled and cured.

When the powder electrostatic spray gun is used, the powder electrostatic spray gun is generally divided into two conditions, one is used for continuously spraying products in batches for a long time, the other is used for trial spraying of the products to confirm whether the detection indexes of the cured powder coating, such as color, thickness, fastness, surface smoothness, environmental protection and the like, are qualified, and the powder electrostatic spray gun can be put into batch spraying production after all the detection indexes meet the requirements.

Normally, powder coating of a batch spraying product needs to be filled into a large-capacity powder storage barrel, the powder coating is conveyed to a powder electrostatic spray gun through a powder pump arranged on the powder storage barrel and finally sprayed out of the spray gun to a sprayed workpiece to realize the coating of the powder coating, because the powder coating is filled into a large-capacity powder barrel to store more powder coating, the powder coating does not need to be frequently supplemented into the powder barrel during batch spraying production, so that the labor intensity and the working efficiency of workers are reduced, but whether the properties of the used powder coating after being baked can meet requirements or not is not known during trial spraying of the product, whether the powder coating can be used for batch spraying production or not is judged, therefore, the product is tried to be sprayed before the batch production, but the powder amount needed by the trial spraying product is small, and if the trial spraying powder coating is poured into the large-capacity powder barrel to perform trial spraying of the product, even if only one product is sprayed, a lot of powder coating needs to be poured to carry out normal spraying, different types or colors of powder coating in the powder barrel need to be carefully cleaned before the powder barrel is normally produced in batches, otherwise the next normal spraying production is influenced, the product can be sprayed all the time, no redundant production line stops to provide product trial spraying, and the trial spraying is actually a preparation work which is completed in a few days before powder is sprayed in batches, so that the condition that the powder coating is unqualified and is purchased again is avoided, and the condition that the product is directly produced after the trial spraying is finished and if the powder coating is qualified is avoided. Therefore, when powder coating is tried to be sprayed, a smaller powder storage cup is needed to store the powder coating so as to facilitate powder replacement and cleaning and save time, but if a powder pump is simply additionally arranged on a cup capable of containing the powder coating and a plurality of related auxiliary parts are additionally arranged to achieve the function of the powder barrel, the powder barrel is equivalently manufactured into a miniature powder barrel, the structure is relatively complex, and the manufactured powder barrel is relatively heavy.

The powder coating test spray gun commonly used in the prior art has the following publication numbers: CN 214107545U's patent discloses a high-efficient convenient manual electrostatic spray gun's patent discloses a manual spray gun, including the spray gun body, the lower extreme of the spray gun body is fixed with the handle, the lower extreme fixedly connected with power cord of handle, the fixed feeding joint that is equipped with of right-hand member of the spray gun body, the fixed solid fixed ring that is equipped with of upside opening part of feeding joint, gu fixed ring's upper end is provided with the toper storage bottle, the bottleneck fixedly connected with connecting pipe of toper storage bottle, the outer pipe wall of connecting pipe and solid fixed ring's interior rampart sliding connection, gu fixed ring's inside is located the downside department fixed connection of connecting pipe and has the horizontally ring baffle, the ring baffle upper end offsets with the lower extreme of connecting pipe and sets up, the circular slot has been seted up to the outer pipe wall symmetry of the left and right sides of connecting pipe. The utility model discloses be convenient for carry out the dismouting to the storage bottle when reloading, labour saving and time saving is efficient.

The test spray gun is characterized in that a cup for containing powder coating is made into a funnel shape and is arranged on a manual powder spray gun, the lowermost end of the funnel is provided with a powder pump device for sucking powder by adopting a Venturi pneumatic principle, and when the test spray gun is used for carrying out test spray coating on the powder coating, the powder pump sucks the powder coating in a powder storage cup and sprays the powder coating out through an electrostatic spray gun. This powder test spray gun has the following disadvantages: 1. the powder spraying is not uniform; 2. the spraying posture is limited; it is inconvenient to spray a product having a complicated shape. 3. The spray gun is heavy and inconvenient to use.

There is also a publication number in the prior art: CN 213377290U's utility model discloses a powder coating electrostatic spray gun device is with powder bucket mechanism, including spray gun body, powder bucket body, interior bucket and motor, the one end of spray gun body is fixed with the connecting block, the inside diaphragm that is provided with of lower extreme of powder bucket body, the internally mounted of powder bucket body has interior bucket, the draw-in groove has been seted up to the upper surface of interior bucket, the lower fixed surface of apron has the inserted block, the surface of apron is provided with the motor, and the output of motor is connected with the (mixing) shaft, the surface mounting of (mixing) shaft has the puddler, and the below of (mixing) shaft is fixed with the connecting rod. This powder coating electrostatic spray gun is powder bucket mechanism for device, the surface mounting of apron has motor, (mixing) shaft and puddler, drives the (mixing) shaft through the motor and rotates, can carry out abundant stirring to the inside powder coating of interior bucket, avoids the coating to produce the phenomenon that the agglomeration appears condensing to the ejection of compact that makes the spray gun body is more smooth and easy, lets workpiece surface's coating thickness more even.

The powder barrel mechanism for the powder coating electrostatic spray gun device is disclosed as follows in the prior art: the patent of CN214107545U discloses on the basis of a high-efficient convenient manual static spray gun, installed the agitator additional in funnel-shaped powder storage cup, can prevent that powder coating caking can not flow to the phenomenon of the secondary disconnected powder of spraying in-process appears in the gun body spray pipe in the cup, nevertheless causes whole gun body to become heavier because of increasing relevant devices such as agitator and motor that drive the agitator, and still exists the drawback that the gun body can not deflect or the spraying of falling over.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the application is to provide a storage cup for powder coating, which omits a funnel cup, a powder pump, a stirrer motor and other parts, greatly simplifies accessories of an electrostatic spray gun in use and the weight of the accessories, and facilitates the use of the electrostatic spray gun; the powder coating is atomized, and the phenomenon of uneven powder generation in the spraying process is avoided.

The technical scheme adopted by the application is as follows: the utility model provides a powder coating's storage cup, includes cup and whirl atomizer, be equipped with the cavity that is used for storing powder coating in the cup, be provided with the powder outlet that is used for supplying powder coating to electrostatic spray gun on the cup, whirl atomizer include gas generating device and set up the fumarole at the cup wall, in the gas that gas generating device produced was by the leading-in cavity of fumarole, cavity inner wall be the arcwall face, the leading-in gas of fumarole removes along cavity inner wall and produces the whirl.

Compared with the prior art, the application has the advantages that: the cup is provided with a rotational flow atomizer, a gas generating device of the rotational flow atomizer generates gas, and the gas is guided into the cup body through the gas injection holes. The gas introduced by the gas injection holes moves along the wall surface of the cup body and generates rotational flow. That is, the operation of the swirl atomizer will generate a swirl in the cup in which the powder coating is stored. Naturally, the rotational flow will act on the powder coating in a suspended state, and the powder coating is driven by the rotating airflow to rotate in the cup body. Under the disturbance of the rotating airflow, the powder coating is fully atomized in the cup body, and the atomized powder coating flows to the powder outlet pipe interface under the action of the air pressure in the cup body and is input to the powder electrostatic spray gun, so that the powder coating is sprayed.

Compare the powder coating that electrostatic spray gun was spouted in prior art trial does not pass through the fluidization but depends on gravity to flow down along the funnel, and at the in-process that powder coating slided down along the funnel inner wall, the narrow department of funnel inner wall lower extreme often has the powder to be detained the phenomenon, the powder caking is blocked the phenomenon that can not flow downwards and takes place, causes to flow to the powder of bottleneck department under the funnel and appears retardation or discontinuous situation. Therefore, the venturi powder supply device can not suck the powder intermittently, which causes the phenomenon that the powder sprayed by the powder gun is discontinuous and uneven. This application supplies powder not relying on gravity at the during operation, and what lean on is the inside rotatory air current of cup, powder intermittent type nature interrupt phenomenon can not appear to the inhomogeneous problem of spraying because of indirect disconnected powder appears has been avoided.

This application does not direct mount on electrostatic spray gun, has consequently subtracted the weight that funnel stored up powder cup, powder coating, powder agitator and driving motor etc. on the spray gun, and the spray gun is used more lightly. Great improvement the static spray gun's that tries to spout convenience of use and practicality. This application separates with the electrostatic spray gun, can adopt arbitrary powder electrostatic spray gun as the electrostatic spray gun of trying to spout.

In some embodiments of the present application, the powder outlet is connected to the electrostatic spray gun through a powder conveying pipe; the powder conveying pipe is a hose. The electrostatic spray gun is not directly arranged on the electrostatic spray gun, and powder supply is realized through the powder conveying pipe. And then make electrostatic spray gun's spraying gesture unrestricted, can the more complicated product of spraying shape, the electrostatic spray gun of prior art trial spraying makes the powder flow direction funnel cup bottom narrow exit and gets into the powder pump and realize supplying the powder because of the funnel cup on the spray gun relies on powder coating self gravity, therefore the spray gun can only keep funnel cup rim of a cup state up and just can spray, that is to say that powder electrostatic spray gun can only positive gesture spraying. If the spray gun is tilted, crossed or turned upside down, the powder supply is stopped and the spraying is not carried out. In the actual spraying process, due to the fact that the shape complexity of the sprayed product is different, the powder test spray gun can be used for spraying the powder to the surfaces of special corner parts of the product only by spraying the spray gun in a transverse or reverse mode for convenience of construction, but the powder cup on the spray gun body cannot supply powder when the gun body inclines, traverses or reverses, and therefore the powder test spray gun has spraying posture and angle limitations. This application is not installed on the rifle body, but by defeated powder hose connection electrostatic spray gun for powder spray gun can adopt any gesture to carry out the spraying when the spraying, the condition that the confession powder was interrupted can not appear.

In some embodiments of the present application, the cup body includes a base, a lid and a cup body, and the base, the cup body and the lid are connected to form a cavity for storing powder paint. The cup body is provided with a circular inner wall.

The powder outlet is arranged on the cup cover. The atomized powder coating can flow to the powder outlet under the action of air pressure in the cup body. Specifically, the cup cover is provided with a powder outlet port, the powder outlet port is communicated with the powder outlet port, and the powder outlet port is connected with the powder conveying pipe.

In some embodiments of the present application, the bottom of the cavity is provided with a fluidization plate, a distance exists between the bottom surfaces in the fluidization plate and the base to form a fluidization cavity, the base is provided with an air inlet for introducing air, and the air introduced by the air inlet reaches the fluidization cavity and then reaches the cavity through the fluidization plate. Dense micropores are distributed on the fluidization plate. The gas is introduced into the cup body through the gas inlet and can reach the fluidization cavity in advance, and after the gas is uniformly buffered in the fluidization cavity, the gas is differentiated into gentle gas flow through the fluidization plate to act on the powder coating so as to drive the powder coating to be in a floating fluidization state.

In some embodiments of the present application, the axial direction of the gas injection hole is tangential to the wall surface of the cup body; the gas orifice is positioned in a plane vertical to the axial direction of the cup body, or the included angle between the gas orifice and the plane vertical to the axial direction of the cup body is an acute angle. Both the two structures can generate rotational flow to realize atomization of powder. The number of the gas injection holes is at least one.

The air injection holes are inclined towards the side of the fluidization plate. Can achieve better powder coating atomization effect. Specifically, the inclination angle of the air injection hole and the section of the inner wall of the cup body can be set according to the designed powder loading amount of the cup body, so that more ideal rotation and disturbance effects on the powder coating in the cup body can be achieved.

In some embodiments of the present application, the cup body is provided with a vent tube, the vent tube penetrates through the wall surface of the cup body, and the gas is introduced into the cup body through the vent tube. The surface of the vent pipe is provided with a gas orifice, and the axial direction of the gas orifice is tangent to the circumferential surface of the inner wall of the cup body.

Specifically, one end of the vent pipe extending into the cup body is a closed blind end, and the wall of the vent pipe close to the inner wall part of the cup body in the cup body is provided with a gas orifice penetrating through the wall of the vent pipe, and the gas orifice and the inner wall part of the cup body are in a tangent trend.

In some embodiments of the present application, the vent tube is rotatable about its axis. And then the angle of the air injection holes is adjusted to realize that the compressed air is injected into the rotating airflow generated in the cup body through the air injection holes to achieve better powder coating atomization effect.

Preferably, the vent pipe vertically penetrates through the wall surface of the cup body. The part of the vent pipe, which is positioned outside the cup body, is provided with a vent interface which is used for communicating compressed air.

In some embodiments of the present application, a sleeve is sleeved outside the cup body, an annular cavity is formed by an inner wall surface of the sleeve and an outer surface of the cup body, the sleeve is provided with an air inlet, and compressed air is introduced into the annular cavity through the air inlet; the pipe sleeve is connected with the cup body or the base, and a sealing structure is arranged at the joint of the pipe sleeve and the cup body or the base. Compressed air is guided into the annular cavity body through the air inlet interface and then guided into the cup body through the air injection holes on the surface of the cup body to form rotational flow.

Specifically, the outer peripheral face of the cup body is provided with an annular boss, the upper end of the pipe sleeve is provided with a pressing ring, the pressing ring is pressed down on the annular boss, and a sealing gasket is arranged between the pressing ring and the annular boss. The surface of the base is provided with external threads, the lower end of the pipe sleeve is provided with internal threads, and the pipe sleeve is in threaded connection with the base.

Furthermore, a sealing ring groove is arranged below the external thread, and a sealing ring is arranged in the sealing ring groove. When the sleeve is screwed with the cup body and screwed tightly, the sealing ring is pressed by the inner wall of the sleeve.

So far, the sleeve pipe and the cup body are connected in a sealing mode, and gas in the annular cavity can only be discharged through the gas injection holes. When the air inlet interface is communicated with the compressed air, the compressed air is filled in the annular cavity, flows to the air injection holes and starts to provide rotary air flow into the cup body through the air injection holes. At the moment, the rotational flow atomizer starts to work, and the powder coating atomization effect which is the same as that of the powder coating atomized by directly connecting compressed air into the air injection holes can be achieved.

In some embodiments of the present application, the upper end of the sleeve is provided with a convex ring, the inner wall of the convex ring is provided with a sealing ring groove, and a sealing ring is arranged in the sealing ring groove. The convex ring acts on the outer surface of the cup body, and the sealing ring deforms under pressure. The cup body and the upper end of the sleeve are sealed, so that a good sealing effect can be achieved.

In some embodiments of the present application, a powder outlet tube is disposed in the cup body, and the powder outlet is disposed on a wall of the powder outlet tube.

In some embodiments of the present application, the base is provided with a powder outlet port, and the powder outlet pipe is partially inserted into the base and is communicated with the powder outlet port.

In some embodiments of the present application, an end of the powder outlet tube located in the cup body is open, and the open end of the powder outlet tube forms the powder outlet.

In some embodiments of the present application, one end of the powder outlet tube located in the cup body is a blind end, and the powder outlet is located on a wall surface of the powder outlet tube. Preferably, the wall surface of the powder outlet pipe can be provided with a plurality of powder outlets.

Specifically, the lower end of the powder outlet pipe penetrates through the fluidization plate, and the lower end of the powder outlet pipe is in threaded connection with the base.

Drawings

The present application will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and should not be taken as limiting the scope of the present application. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on the concept of a composition or construction of the object being described and may include exaggerated displays and are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of a first embodiment of the present application;

FIG. 2 is a cross-sectional guidance diagram of the first embodiment of the present application;

FIG. 3 is a cross-sectional view G-G of FIG. 2;

FIG. 4 is a cross-sectional view H-H of FIG. 2;

FIG. 5 is a schematic structural diagram of a third embodiment of the present application;

FIG. 6 is a cross-sectional view of FIG. 5;

FIG. 7 is a schematic structural diagram of a fourth embodiment of the present application;

FIG. 8 is a cross-sectional guidance diagram of a fourth embodiment of the present application;

FIG. 9 is a schematic cross-sectional view E-E of FIG. 8;

FIG. 10 is a schematic sectional view F-F of FIG. 8;

FIG. 11 is a schematic structural diagram of a fifth embodiment of the present application;

FIG. 12 is a cross-sectional view M-M of FIG. 11;

FIG. 13 is a cross-sectional view N-N of FIG. 11;

FIG. 14 is a schematic cross-sectional view of a sixth embodiment of the present application;

FIG. 15 is a schematic structural diagram of a seventh embodiment of the present application;

FIG. 16 is a cross-sectional view of FIG. 15;

fig. 17 is another schematic structural diagram of a seventh embodiment of the present application.

Wherein the reference numerals are specified as follows: 1. a cup body; 1a, a base; 1b, a cup cover; 1c, a cup body; 2. an air inlet; 3. a powder outlet; 4. a gas injection hole; 6. a fluidization plate; 7. a fluidization chamber; 8. a hasp;

9. a breather pipe; 11. a first seal ring;

12. a sleeve; 13. an annular cavity; 14. an air inlet interface; 15. an annular boss; 16. pressing a ring; 17. a gasket; 18. a second seal ring; 19. a convex ring; 20. a third seal ring;

21. a powder outlet pipe; 22. and a powder outlet port.

Detailed Description

The present application will now be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.

A powder storage cup for an electrostatic spray gun, embodying a structure as shown in fig. 1 to 4: including storage powder coating's cup 1 and whirl atomizer, cup 1 on be provided with and be used for leading-in gaseous air inlet 2 in the cup 1, the suspension of powder coating in the gaseous drive cup 1 of air inlet 2 leading-in, cup 1 is provided with the play powder mouth 3 that is used for supplying powder coating to electrostatic spray gun, whirl atomizer include gas generator and set up the fumarole 4 at 1 wall of cup, in the gaseous leading-in cup 1 of fumarole 4 that produces, follow the gaseous 1 wall removal production whirl of fumarole 4 department leading-in gas.

Before the cup is used, the cup body 1 is placed on the ground or a workbench, and a proper amount of powder coating is added into the cup body 1. Gas (typically compressed air) is introduced into the gas inlet 2 so that the powder coating material is in a fluidized suspension within the cup 1. At this time, the gas (generally, compressed air) introduced from the gas injection holes 4 generates a whirling gas flow in the cup body 1. Under the disturbance of the rotating airflow, the powder coating in the suspension state is driven to rotate in the cup body 1, and the powder coating is fully atomized in the cup body 1.

Along with the fumarole 4 constantly blows and jets compressed air to the cup 1, atmospheric pressure in the cup 1 can be higher than the atmospheric pressure outside the cup 1, under the promotion of pressure differential, the powder coating of atomizing in the cup 1 can flow to powder outlet 3. The powder coating material led out from the powder outlet 3 is fed into the electrostatic spray gun to realize the spraying of the powder coating material.

Example two, as shown in fig. 1 to 4: the powder outlet 3 is connected with the electrostatic spray gun through a powder conveying pipe. The powder conveying pipe is a hose. Since the hose and the electrostatic spray gun are prior art products in the field, they are not further developed in the present application, and a specific structural schematic diagram is not provided in the drawings of the specification.

The powder coating is conveyed to the electrostatic spray gun through the powder conveying pipe, and powder is not supplied through the funnel storage cup arranged on the spray gun like the electrostatic spray gun for trial spraying in the prior art, so that the powder electrostatic spray gun eliminates the weight of the funnel storage cup, the powder coating or a powder stirrer, a driving motor and the like, and the powder electrostatic spray gun does not need to use a special powder electrostatic trial spray gun provided with auxiliary parts such as the funnel cup and the like.

Specifically, the cup body 1 comprises a base 1a, a cup cover 1b and a cup body 1c, wherein the base 1a, the cup body 1c and the cup cover 1b are connected to form a cavity for containing powder coating. The upper end of the cup body 1c is inserted into the cup cover 1b, and the cup cover 1b and the cup body 1c are locked through the hasps 8. The base 1a is provided with internal threads, the bottom of the cup body 1c is provided with external threads, and the base 1a is in threaded connection with the cup body 1 c.

The air inlet 2 is arranged on the base 1a, the bottom of the cup body 1c is provided with a fluidization plate 6, air holes are distributed on the surface of the fluidization plate 6, a distance exists between the fluidization plate and the inner bottom surface of the base 1a, the fluidization plate and the base 1a form a fluidization cavity 7, and the air inlet 2 is communicated to the inner bottom surface of the base 1 a.

The gas is introduced into the cup body 1 through the gas inlet 2 and reaches the fluidization cavity 7 in advance, and after the gas is uniformly buffered in the fluidization cavity 7, the gas is divided into soft gas flow through the fluidization plate 6 to act on the powder coating so as to drive the powder coating to be in a floating fluidization state. Specifically, dense micropores are distributed on the fluidization plate 6.

The powder outlet 3 is arranged on the cup cover 1 b. The atomized powder coating can flow to the powder outlet 3 under the action of the air pressure in the cup body 1. Specifically, the cup cover 1b is provided with a powder outlet port 22, the powder outlet port 22 is communicated with the powder outlet port 3, and the powder outlet port 22 is connected with the powder conveying pipe.

The wall surface of the cup body 1 is provided with at least one air injection hole 4. Preferably, two fumaroles 4 are symmetrically arranged on the wall surface of the cup body 1, and the two fumaroles 4 are arranged back to back. The axial direction of the air injection hole 4 is tangential to the wall surface of the cup body 1. The gas introduced from the gas injection holes 4 can be surely moved along the wall surface of the cup body 1 to form a swirl flow. Specifically, the air injection holes 4 are positioned in a plane perpendicular to the axial direction of the cup body 1. Namely, the angle of the air injection hole 4 is tangential to the cross section of the inner wall of the cup body 1 in the right transverse direction. If the cup body 1 is placed on a horizontal plane, the air injection holes 4 are also located in a horizontal plane.

The cup cover 1b is opened, a proper amount of powder coating is added into the cup body 1c, then the cup cover 1b is covered, and the cup cover 1b is locked and sealed by the hasp 8. When the air inlet 2 is connected with compressed air, the fluidizing chamber 7 is filled with the compressed air, the compressed air flows into the cup body 1 from the bottom of the cup body 1 after passing through a plurality of dense micropores on the fluidizing plate 6, and the powder coating starts to be in a fluidized suspension state in the cup body 1 under the blowing and jetting of the soft air flow. At the moment, compressed air is introduced into the air injection holes 4 of the cup body 1, high-speed compressed air jet flow is tangentially sprayed out from the air injection holes 4 along the inner wall of the cup body 1, rotational flow is generated in the cup body 1, and the powder coating is fully atomized in the cup body 1. The powder coating after full atomization can move upwards and flow to the powder outlet 3 on the cup cover 1 b. The powder coating led out from the powder outlet 3 is input into the electrostatic spray gun through the powder conveying pipe so as to realize the spraying of the powder coating.

In order to introduce gas into the gas injection holes 4 and the gas inlet 2, the gas generation device can be connected with the gas injection holes 4 and the gas inlet 2 through hoses, which are also shown in the attached drawings of the specification.

The other contents of the second embodiment are the same as those of the first embodiment.

As shown in fig. 5 and 6, the third embodiment is the same as the second embodiment in other respects, and the differences are as follows: the included angle between the air injection holes 4 and the plane vertical to the axial direction of the cup body 1 is an acute angle. Specifically, the gas injection holes 4 are inclined toward the side of the fluidization plate 6. The air flow sprayed by the air injection holes is blown to the fluidized powder, so that a better powder coating atomization effect can be achieved. Specifically, the inclination angle of the air injection hole 4 and the section of the inner wall of the cup body 1 can be set according to the designed powder loading amount of the cup body 1, so that more ideal rotation and disturbance effects on the powder coating in the cup body 1 are achieved.

Fourth embodiment, as shown in fig. 7 to 10, the cup body 1 is provided with a vent pipe 9, the vent pipe 9 penetrates the cup body 1, and gas is introduced into the cup body 1 through the vent pipe 9. The surface of the vent pipe 9 is provided with air injection holes 4, and the axial direction of the air injection holes 4 is tangent to the circumferential surface of the inner wall of the cup body 1.

Specifically, a through hole is formed in the cup body 1c of the cup body 1, and a first sealing ring 11 is arranged between the vent pipe 9 and the through hole.

Specifically, one end of the vent pipe 9 extending into the cup body 1 is a closed blind end, the wall of the vent pipe 9, which is close to the inner wall portion of the cup body 1, in the cup body 1 is provided with a gas orifice 4 penetrating through the wall of the vent pipe 9, and the gas orifice 4 and the inner wall of the cup body 1 are in a tangent direction.

The vent tube 9 is rotatable about its axis. And then the angle of the air injection holes 4 is adjusted to realize that the compressed air is injected into the cup body 1 through the air injection holes 4 to generate rotary airflow so as to achieve better powder coating atomization effect. Preferably, the vent pipe 9 vertically penetrates through the wall surface of the cup body 1. The part of the vent pipe 9, which is positioned outside the cup body 1, is provided with a vent interface which is used for communicating compressed air.

The working principle of the powder coating spraying device is the same as that of the first embodiment, the powder coating is disturbed by the aid of jet air flow, air pressure is generated in the cup body 1 at the same time, and accordingly the atomized powder coating is pushed to pass through the powder outlet 3 and then is sprayed out through the powder conveying pipe and the powder electrostatic spray gun, and the purpose of spraying the powder coating is achieved.

The rest of the fourth embodiment is the same as the first or second embodiment.

In the fifth embodiment, as shown in fig. 11 to 13, a sleeve 12 is sleeved outside the cup body 1, an annular cavity 13 is formed by the inner wall surface of the sleeve 12 and the outer surface of the cup body 1, the sleeve 12 is provided with an air inlet 14, and compressed air is introduced into the annular cavity through the air inlet 14. Compressed air is guided into the annular cavity 13 through the air inlet port 14 and then guided into the cup body 1 through the air injection holes 4 on the surface of the cup body 1 to form rotational flow.

Specifically, the outer peripheral surface of the cup body 1 is provided with an annular boss 15, the upper end of the pipe sleeve is provided with a pressing ring 16, the pressing ring 16 is pressed down on the annular boss 15, and a sealing gasket 17 is arranged between the pressing ring 16 and the annular boss 15. The surface of the base 1a is provided with external threads, the lower end of the pipe sleeve is provided with internal threads, and the pipe sleeve is in threaded connection with the base 1 a.

Further, a sealing ring groove is arranged below the external thread, and a second sealing ring 18 is arranged in the sealing ring groove. When the sleeve 12 is screwed with the cup body 1 and screwed tightly, the second sealing ring 18 is pressed by the inner wall of the sleeve 12.

At this point, the sleeve 12 and the cup body 1 are connected in a sealing manner, and the gas in the annular cavity 13 can be discharged only from the gas injection holes 4. When the air inlet port 14 is connected with compressed air, the compressed air fills the annular cavity 13, flows to the air injection holes 4, and starts to provide rotary air flow into the cup body 1 through the air injection holes 4. At the moment, the rotational flow atomizer starts to work, and the powder coating atomization effect which is the same as that of the powder coating atomization effect of the compressed air directly connected into the air injection holes 4 can be achieved.

The other contents of the fifth embodiment are the same as those of the first embodiment, the second embodiment or the third embodiment.

Example six, as shown in fig. 14: the rest of the sixth embodiment is the same as the fifth embodiment, except that: the upper end of sleeve 12 is equipped with bulge loop 19, bulge loop 19 inner wall is equipped with the sealing washer slot, the sealing washer slot in be equipped with third sealing washer 20. The convex ring 19 acts on the outer surface of the cup body 1, and the third sealing ring 20 is deformed under pressure. The cup body 1 and the upper end of the sleeve 12 are sealed, so that a good sealing effect can be achieved.

The working principle of the sixth embodiment is the same as that of the fifth embodiment.

Seventh embodiment, as shown in fig. 15 to 17, a powder outlet tube 21 is disposed in the cup body 1, and the powder outlet 3 is disposed on a tube wall of the powder outlet tube 21. The powder outlet port 22 is arranged on the base 1a, and the powder outlet pipe 21 is partially inserted into the base 1a and communicated with the powder outlet port 22. Namely, the powder coating in the cup body 1 enters the powder outlet pipe 21 from the powder outlet 3 and then reaches the powder outlet port 22 through the powder outlet pipe 21. The powder outlet port 22 is connected with the electrostatic spray gun through a powder conveying pipe.

The powder outlet pipe 21 is provided with an opening at one end in the cup body 1, and the opening at one end of the powder outlet pipe 21 forms the powder outlet 3.

Or, one end of the powder outlet pipe 21 in the cup body 1 is a blind end, and the powder outlet 3 is located on the wall surface of the powder outlet pipe 21. Preferably, the powder outlet pipe 21 may be provided with a plurality of powder outlets 3 on the wall surface. Specifically, the lower end of the powder outlet pipe 21 penetrates through the fluidization plate 6, and the lower end of the powder outlet pipe 21 is in threaded connection with the base 1 a.

The remainder of the seventh embodiment may be the same as any of the above-described embodiments. In the drawings in the specification of the present application, two structures are specifically given. The rest of the embodiment seven is the same as the embodiment four, as shown in fig. 15 and 6. Or the other contents of the seventh embodiment are the same as those of the fifth embodiment, as shown in fig. 17.

The present application has been described in detail above, and specific examples thereof are used herein to explain the principles and implementations of the present application, which are presented solely to aid in understanding the present application and its core concepts. It should be noted that, for those skilled in the art, without departing from the principle of the present application, the present application can also make several improvements and modifications, and those improvements and modifications also fall into the protection scope of the claims of the present application.

Claims

1. A powder coating storage cup, comprising: including cup and whirl atomizer, be equipped with the cavity that is used for saving powder coating in the cup, be provided with the play powder mouth that is used for supplying powder coating to electrostatic spray gun on the cup, whirl atomizer include gas generating device and set up the fumarole at the cup wall, in the gas that gas generating device produced was by the leading-in cavity of fumarole, cavity inner wall be the arcwall face, the leading-in gas of fumarole removed along cavity inner wall and produces the whirl.

2. A powder coating material storage cup as defined in claim 1, wherein said powder outlet is connected to an electrostatic spray gun through a powder feed tube; the powder conveying pipe is a hose.

3. The powder paint storage cup as claimed in claim 1, wherein the cup body comprises a base, a lid and a body, and the base, the body and the lid are connected to form a cavity for storing the powder paint.

4. The powder coating material storage cup as claimed in claim 1, wherein a fluidization plate is provided at a bottom of the chamber, a space is provided between the fluidization plate and an inner bottom surface of the base to form a fluidization chamber, the base is provided with a gas inlet for introducing gas, and the gas introduced from the gas inlet reaches the fluidization chamber and then reaches the chamber through the fluidization plate.

5. A storage cup for powder coating material as claimed in claim 1 or 4, wherein the air injection hole is provided in an axial direction tangential to the wall surface of the cup body; the gas orifice is positioned in a plane vertical to the axial direction of the cup body, or the included angle between the gas orifice and the plane vertical to the axial direction of the cup body is an acute angle.

6. A powder paint storage cup according to claim 1, wherein the cup body is provided with a vent tube extending through a wall of the cup body, and gas is introduced into the cup body through the vent tube.

7. A storage cup for powder paint as claimed in claim 6, wherein the vent tube is rotatable about its axis.

8. The storage cup for the powder coating according to claim 1 or 4, wherein a sleeve is sleeved outside the cup body, an annular cavity is formed by the inner wall surface of the sleeve and the outer surface of the cup body, the sleeve is provided with an air inlet port, and compressed air is introduced into the annular cavity through the air inlet port; the pipe sleeve is connected with the cup body or the base, and a sealing structure is arranged at the joint of the pipe sleeve and the cup body or the base.

9. The storage cup for powder coating according to claim 1, 4 or 6, wherein a powder outlet tube is arranged in the cup body, and the powder outlet is arranged on the wall of the powder outlet tube.

10. The powder coating storage cup as claimed in claim 9, wherein a powder outlet port is provided on a base of the cup body, and the powder outlet pipe is partially inserted into the base to communicate with the powder outlet port.