CN108525909A - Powder spraying system convenient to clean - Google Patents

Abstract

The invention discloses a powder spraying system convenient to clean, which comprises a spraying chamber body, an automatic spray gun system, an air draft system and a vertical reciprocating device, wherein the spraying chamber body is used for enclosing a spraying area, the vertical reciprocating device comprises a spray gun beam positioned on the inner side surface of the spraying chamber body and a connecting arm for connecting the spray gun beam and the vertical reciprocating device, the automatic spray gun system comprises a plurality of automatic spray guns arranged on the spray gun beam, a spray gun beam open slot through which the connecting arm can pass is formed in the spraying chamber body, a powder discharging channel is only formed in the spray gun beam open slot, the powder discharging amount is reduced, powder is not easy to blow out to the space outside the spraying chamber during cleaning, the color changing and cleaning efficiency is high, the color changing and cleaning work is fast, the powder feeding efficiency of the automatic spray gun is more efficient, and the cleaning device can be selectively configured on; the vertical reciprocating device has the functions of carrying the vertical reciprocating motion of the automatic spray gun and carrying the cleaning device in the spraying chamber, thereby further shortening the color changing and cleaning time and improving the spraying efficiency.

Description

A kind of powder spraying system that is easy to clean up

technical field

The invention relates to an electrostatic powder spraying system, which is used in the field of automatic electrostatic powder spraying.

Background technique

When performing electrostatic powder automatic powder spraying operations in the powder spraying room, for the automatic spray guns arranged horizontally, the electrostatic powder spray gun is generally inserted into the powder spraying room through the automatic spray gun groove reserved on the side plate of the powder spraying room.

The two sides of the powder spraying room generally reserve automatic spray gun slots with the same number of spray guns; the automatic spray gun slots on the two side plates maintain a position offset of 250mm to 500mm. The purpose of the position offset is mainly to prevent the electrostatic powder spray gun on the opposite side from The sprayed powder escapes into the space outside the spray booth. Powder spillage is most likely to occur on the spraying site, usually at the notch position of the automatic spray gun, because the gas-solid two-phase flow velocity of the gas and powder sprayed against the automatic spray gun is generally 10-30m/s, if the workpiece to be sprayed is a grid , fence type hollow workpiece, the sprayed powder can easily pass through the workpiece and escape to the outer space of the powder spraying room.

When changing the color by spraying, the sprayer needs to clean the side plate (including the notch of the automatic spray gun on the side plate), the top plate and the bottom plate respectively. When the sprayer cleans the side wall board inside the powder spraying room, it is also easy to blow out the powder inside the wall board to the outer space of the automatic spray gun slot. Therefore, the conventional powder spraying room has the following disadvantages: the automatic spray gun mouth is prone to powder overflow, the cleaning efficiency of color change is low, the cleaning of color change takes a long time, and the powder feeding efficiency of automatic spray gun is low.

Contents of the invention

In order to overcome the deficiencies in the prior art, the present invention provides a powder spraying system that is convenient for cleaning.

The technical solution adopted by the present invention to solve its technical problems is:

A kind of powder spraying system that is easy to clean, comprises the spraying room body that encloses spraying area, automatic spray gun system, and exhaust system, and described spraying room body comprises side plate assembly, top plate assembly, bottom plate assembly and the exhaust duct that is connected with exhaust system components;

It also includes at least one set of vertical reciprocating devices arranged outside the spraying room body. The vertical reciprocating device includes a spray gun beam positioned at the inner side of the spraying room body and a connecting arm connecting the spray gun beam and the vertical reciprocating device. The automatic spray gun system includes several The automatic spray gun arranged on the spray gun beam, the vertical reciprocating device can drive the spray gun beam and the automatic spray gun to move up and down in the spraying room body through the connecting arm, and the spraying room body has a device for the connecting arm to pass through and lift The moving spray gun beam has an opening slot, and the automatic spray gun and the spray gun beam are always in the area between the inner side of the spray booth body and the sprayed workpiece during the spraying or non-spraying process, that is, the automatic spray gun and the spray gun beam are built in the inner area of the spray booth body.

The automatic spray gun is rotatably arranged on the spray gun beam, and the arrangement angle of the automatic spray gun can be adjusted within the range of ±75°.

A conveying chain for conveying sprayed workpieces is arranged in the spraying room body, and the opening groove of the spray gun crossbeam is arranged on the side plate assembly, and the opening direction thereof is parallel to the conveying direction of the conveying chain.

The spray gun beam is equipped with a cleaning device capable of cleaning the side plate assembly or the wall plate of the top plate assembly or the bottom plate assembly of the powder spraying chamber.

The cleaning device is a pneumatic non-contact cleaning device and/or a flexible contact cleaning device.

The connecting pipeline of the automatic spray gun is placed inside the beam of the spray gun, and the pipeline connected with the cleaning device is arranged inside the beam of the spray gun.

The spray gun beam is equipped with a pneumatic cleaning device capable of cleaning the shell of the automatic spray gun.

The vertical reciprocating device is configured with two groups and is respectively arranged on both sides of the spraying room body;

The two sets of vertical reciprocating devices are driven by a synchronous drive unit to move synchronously;

Or the two sets of vertical reciprocating devices adopt independent drive units, and the two sets of vertical reciprocating devices can be driven by corresponding independent drive units to move synchronously or asynchronously.

The vertical reciprocating device is equipped with a position adjusting device capable of adjusting the position of the connecting arm and the beam of the spray gun, so as to adjust the distance between the automatic spray gun and the spraying workpiece.

The exhaust duct assembly includes vertical exhaust duct assemblies vertically arranged on both sides inside the spray booth body;

Or the exhaust duct assembly includes a vertical exhaust duct assembly vertically arranged on both sides of the spray booth body, a top exhaust duct assembly disposed on the top plate assembly, and a bottom exhaust duct assembly disposed on the bottom plate assembly.

The spray booth body can include a set of manual spray gun units, which are arranged at the workpiece inlet or workpiece outlet positions at both ends of the spray booth body, and are used for manual or robotic supplementary spraying of the surface to be sprayed that cannot be sprayed by automatic spray guns.

The beneficial effect of the present invention is: a kind of powder spraying system that is easy to clean up, comprises the spray booth body that encloses the spray area, automatic spray gun system, exhaust system, and at least one group is arranged on the vertical reciprocating device outside the spray booth body, said The spraying room body includes a side plate assembly, a top plate assembly, a bottom plate assembly and an exhaust pipe assembly connected to the exhaust system. The vertical reciprocating device includes a spray gun beam located on the inner side of the spray booth body and a connecting arm connecting the spray gun beam and the vertical reciprocating device. The automatic spray gun system includes several automatic spray guns arranged on the spray gun beam, and the vertical reciprocating device can drive the spray gun beam and the automatic spray gun to move up and down in the spray booth body through the connecting arm. The opening slot of the spray gun beam for the connecting arm to pass through and move up and down, and the automatic spray gun and the spray gun beam are always in the area between the inner side of the spray booth body and the sprayed workpiece during the spraying or non-spraying process, that is, the automatic spray gun and the spray gun beam are built in the spraying In the inner area of the chamber body, in the present invention, the powder leakage channel in the spray booth is only at the opening groove of the spray gun beam. Compared with the traditional spray booth, the amount of powder leakage is greatly reduced, and it is not easy to blow the powder out to the spray booth during cleaning. The outer space of the room, the efficiency of color change and cleaning is high, the work of color change and cleaning is fast, and the efficiency of automatic spray gun powdering is more efficient.

Moreover, the spray gun beam can be selectively equipped with cleaning devices corresponding to the side plate assembly, top plate assembly, and bottom plate assembly of the powder spraying chamber; the vertical reciprocating device has the function of carrying the vertical reciprocating movement of the automatic spray gun and the internal cleaning device of the spraying chamber body; The cleaning area of the spraying chamber wall is small, the spraying gun can flexibly adjust the spraying angle, and the automatic spraying gun face-to-face synchronous lifting and spraying ensures high spraying and powdering efficiency. At the same time, it has the function of automatic cleaning of the inner wall of the powder spraying room body, which further shortens the cleaning time of color change. Improve spraying efficiency.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Figure 1 is an example of the top view layout of a traditional powder spraying system;

Fig. 2 is a top view layout example of the present invention;

Figure 3 is an example of a side view of the present invention.

Detailed ways

With reference to Fig. 2, Fig. 3, Fig. 2 and Fig. 3 are the structural representations of a specific embodiment of the present invention, as shown in the figure, a kind of powder spraying system that is convenient to clean up, comprises the spraying room body 1 of enclosure spraying area, automatic spraying gun System 2, vertical reciprocating device 3 and ventilation system 4.

As shown in Figure 2, the spray booth body 1 includes a side plate assembly 1.1, a top plate assembly, a bottom plate assembly 1.4 and an exhaust duct assembly, and the side plate assembly 1.1 includes a spray gun beam opening slot 1.2 parallel to the movement direction of the conveying chain 6 , in this embodiment, the number of opening slots 1.2 of the spray gun beam on each side is only one, and the number of opening slots 1.2 of the spray gun beam is limited to be less than the number of automatic spray guns 2.1 arranged horizontally as shown in the top view projection of the automatic spray guns 2.1, and spraying or non- During the spraying process, the automatic spray gun 2.1 is always in the area between the side plate assembly 1.1 and the sprayed workpiece 5, that is, the automatic spray gun 2.1 is built in the inner area of the spray booth body 1.

If the specific implementation is too long, the opening slot 1.2 of the spray gun beam can be provided at the front of the side plate assembly 1.1, which will not be described in detail here.

As shown in Fig. 2 and Fig. 3, the automatic spray gun system 2 is connected with the spray gun beam 2.2 placed inside the powder spraying room; The spray gun system 2 spreads the powder on the surface to be sprayed of the sprayed workpiece 5 to realize the automatic spraying function.

As shown in Figures 2 and 3, the arrangement angle of the automatic spray gun 2.1 can be adjusted arbitrarily according to the spraying requirements, and is not limited to being perpendicular to the outer surface of the workpiece to be sprayed, and the arrangement angle is within the range of ±75°.

As shown in Figures 2 and 3, the spray gun beam 2.2 can optionally be equipped with a pneumatic cleaning device 2.3 corresponding to the side plate assembly 1.1, top plate assembly, and bottom plate assembly 1.4 of the powder spraying chamber, including but not limited to a pneumatic non-contact cleaning device , also includes a flexible contact cleaning device, such as a sponge wiping device, one of the two or a combination of the two can be selected;

Preferably, the spray gun beam 2.2 can optionally be equipped with the pneumatic cleaning device 2.4 of the shell of the automatic spray gun 2.1, and at the same time for the convenience of cleaning, the powder pipes, gas pipes, cables and other pipelines connected to the automatic spray gun 2.1 can preferably be placed on the side of the spray gun beam 2.2 Inside; the line to which the pneumatic cleaning device 2.3 is connected can preferably be placed inside the spray gun beam 2.2.

Preferably, the driving unit of the vertical reciprocating device 3 arranged on both sides can be selectively configured with a synchronous driving unit, so that the automatic spray gun system 2 on both sides can be synchronously driven to spray the gas and powder gas of the automatic spray gun 2.1 during the spraying process. The solid two-phase flow achieves collision and mixing in the workpiece area, which can reduce the spraying speed of the sprayed powder atomized group, and at the same time increase the powder concentration in the sprayed area, which is beneficial to improve the surface, groove and welding position of the sprayed workpiece 5. Powder efficiency; the vertical reciprocating device 3 arranged on both sides can also choose independent drive units on both sides, and the servo stepping motor system can realize synchronous reciprocating motion or non-synchronous reciprocating motion. The reciprocating motion is not limited to synchronous reciprocating motion, but preferably Synchronous reciprocating motion.

As shown in Figures 2 and 3, the vertical reciprocating device 3 is equipped with a position adjusting device 3.1 capable of adjusting the position of the connecting arm 2.9 and the spray gun beam 2.2, in order to adjust the distance between the automatic spray gun 2.1 and the spraying workpiece 5, so as to facilitate It is suitable for spraying of different workpieces. The position adjustment device 3.1 can be a screw mechanism or a sliding adjustment mechanism matched with a slide rail slider, which will not be described in detail here.

Preferably, as shown in Figure 2, the exhaust duct assembly includes a vertical exhaust duct assembly 1.3 vertically arranged on both sides inside the spray booth body 1, arranged at a position 100-2000mm away from the automatic spray gun 2.1, which can be used for the spray booth. The suspended powder is extracted in parallel to improve the efficiency of ventilation and dust removal.

Of course, in the specific implementation process, the arrangement of the exhaust duct can also be adjusted appropriately according to the spraying process, such as the exhaust duct assembly can include the vertical exhaust duct assembly 1.3 vertically arranged on both sides inside the spray booth body 1, and the exhaust duct assembly 1.3 arranged on the top plate. The top exhaust duct assembly of the module and the bottom exhaust duct assembly arranged on the bottom plate assembly 1.4 respectively realize parallel extraction, top extraction, and bottom extraction, further improving the efficiency of dust removal.

The preferred implementation of the present invention has been described in detail above. Of course, the present invention can also adopt different forms from the above-mentioned embodiments. Those skilled in the art can make equivalent transformations or corresponding equivalents without violating the spirit of the present invention. Any changes should fall within the protection scope of the present invention.

Claims (11)

1. a kind of powder spraying system being convenient to clean, including enclose sum that cover the spray booth ontology of spraying area, automatic spray gun system Exhausting system；

It is characterized in that：Further include at least one set of outer vertically reciprocating device being arranged in spray booth ontology, the spray booth Ontology includes air draft pipe component that is lateral plate component, top plate member, bottom deck assembly and being connect with exhausting system, described Vertically reciprocating device include positioned at spray booth ontology inner side spray gun crossbeam and connection spray gun crossbeam with it is vertical The linking arm of reciprocating apparatus, the automatic spray gun system includes several upper automatic spray guns being arranged in spray gun crossbeam , the vertically reciprocating device can by the linking arm drive spray gun crossbeam and automatic spray gun in spray booth sheet The interior elevating movement of body, offer on the spray booth ontology can for linking arm pass through and the spray gun crossbeam of lifting moving Open slot, and spray or non-spraying during automatic spray gun and spray gun crossbeam always be in spray booth ontology private side Face and spraying workpiece between region, i.e., automatic spray gun and spray gun crossbeam the interior zone for being built in spray booth ontology.

2. according to claim 1-kind of powder spraying system being convenient to clean, it is characterised in that：The rotation of the automatic spray gun It is arranged in the upper of spray gun crossbeam, and the arrangement adjustable angle of the automatic spray gun, arrangement angle is within the scope of ± 75 °.

3. according to claim 1-kind of powder spraying system being convenient to clean, it is characterised in that：The spray booth ontology it is interior It is provided with the conveyor chain for conveying spraying workpiece, the spray gun crossbeam open slot is arranged in the upper of lateral plate component, And its opening direction is parallel with the direction of transfer of conveyor chain.

4. according to claim 1-kind of powder spraying system being convenient to clean, it is characterised in that：The configuration of the spray gun crossbeam Powder spraying chamber lateral plate component or the siding of top plate member or bottom deck assembly cleaning plant can be cleared up by having.

5. according to claim 4-kind of powder spraying system being convenient to clean, it is characterised in that：The cleaning plant is gas Move contactless cleaning plant and/or flexible contact type cleaning plant.

6. according to claim 4-kind of powder spraying system being convenient to clean, it is characterised in that：The connection of institute's automatic spray gun Pipeline is placed in the inside of spray gun crossbeam, and the pipeline of the connection of cleaning plant is set to the inside of spray gun crossbeam.

7. according to claim 1-kind of powder spraying system being convenient to clean, it is characterised in that：The configuration of the spray gun crossbeam There is the pneumatic cleaning device for the shell that can clear up automatic spray gun.

8. according to claim 1-kind of powder spraying system being convenient to clean, it is characterised in that：The vertically reciprocating device Configured with two groups and it is separately positioned on the both sides of spray booth ontology；

Two groups of using for vertically reciprocating device synchronize driving unit driving synchronizing moving；

Or two groups of vertically reciprocating devices use independent driving unit, two groups of vertically reciprocating devices can respectively by it is corresponding solely Vertical driving unit drives synchronizing moving or asynchronous movement.

9. according to claim 1-kind of powder spraying system being convenient to clean, it is characterised in that：The vertically reciprocating device Configured with the apparatus for adjusting position that can adjust linking arm and spray gun crossbeam position, to adjust automatic spray gun and spray Apply the spacing between workpiece.

10. according to claim 1-kind of powder spraying system being convenient to clean, it is characterised in that：

The air draft pipe component includes the vertical air draft pipe component for the inside both sides for being vertically set on spray booth ontology；

Or the air draft pipe component include the vertical air draft pipe component for the inside both sides for being vertically set on spray booth ontology, Be arranged top plate member top exhausting tube assembly and bottom drawing tube assembly in bottom deck assembly is set.

11. according to claim 1-kind of powder spraying system being convenient to clean, it is characterised in that：The spray booth ontology Further include one or more sets manual spray gun units, the workpiece at the both ends for being arranged in spray booth ontology of manual spray gun unit enters Mouth and/or workpiece outlet position, the surface to be sprayed that can not be sprayed for the automatic spray gun that fills spray for artificial or robot.