Automatic change low paint spraying apparatus that arranges
Technical Field
The invention relates to the field of furniture production equipment, in particular to an automatic low-row paint spraying device.
Background
In the production of furniture, paint spraying is one of the most important processes, in the current production process of furniture, a cut plate is manually conveyed into a paint spraying chamber to be fixed, then paint spraying is carried out on the surface to be painted of the plate through an automatic nozzle, and the plate after paint spraying is manually conveyed into a paint drying chamber to be dried.
However, a large amount of paint mist particles can be emitted in the paint spraying process, dispersion of the paint mist seriously harms the health of an operator, manual conveying and debugging are excessively relied on in the paint spraying process, for example, multiple persons are required to carry out carrying and mounting position adjustment of plates in turn in the feeding process of the plates one by one, and secondary carrying and mounting position adjustment is required to be carried out by manpower after paint spraying is completed, so that the plates enter a paint spraying chamber, the overall efficiency depends on the efficiency of manpower, full-automatic production cannot be realized, the efficiency of a paint spraying link is low, and an operator can suck a large amount of paint mist in the paint spraying and paint drying environment; in addition, the dispersed paint mist influences the working environment of other areas in the workshop.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the automatic low-row paint spraying device, so that the automatic paint spraying of the spray head is realized, the automation of all paint spraying processes is completely realized, and the production efficiency and the yield are obviously improved.
The purpose of the invention can be realized by the following technical scheme:
the automatic low-row paint spraying device comprises a board storage cavity, a paint spraying cavity, a nozzle, a sprayer, a spraying liquid recycling assembly, a pre-drying paint cavity and a board conveying assembly.
A first conveying rail is arranged in the plate storage cavity, and a plurality of plates are vertically placed in the first conveying rail;
a second conveying rail which is vertical to and communicated with the first conveying rail is arranged in the paint spraying cavity;
the plurality of nozzles are evenly distributed on the inner walls of the two sides of the paint spraying cavity and can spray paint to the two sides of the plate on the second conveying rail;
the sprayer sprays paint mist coagulant to absorb the paint mist dispersed in the paint spraying cavity;
the spraying liquid recovery component recovers the spraying liquid, filters paint slag in the spraying liquid, and pumps the filtered spraying liquid back to the sprayer;
a third conveying rail which is vertical to and communicated with the second conveying rail is arranged in the pre-paint drying cavity, and the plate enters the pre-paint drying cavity for temporary storage;
the plate conveying assembly can carry the plate to horizontally move on the first conveying rail, the second conveying rail and the third conveying rail.
Furthermore, a distribution plate is arranged in the paint spraying cavity, a plurality of nozzles are uniformly connected to the distribution plate, and the distribution plate provides pressure ink for the nozzles.
Furthermore, a suction fan is arranged at one end of the paint spraying cavity close to the pre-baking paint cavity;
the inlet end of the suction fan is connected to one end, close to the pre-baking paint cavity, of the paint spraying cavity, the outlet end of the suction fan is connected with the flame burner, and the flame burner burns sucked paint mist.
Furthermore, the sprayer comprises an input pipe and a spray header arranged at the top end of the input pipe;
the spraying liquid contains paint mist coagulant;
the spraying range of the spraying liquid is between the surface of the distributing plate, which is not provided with the nozzles, and the side wall surface of the paint spraying cavity. The reason for setting the range is to prevent the spraying liquid from spraying on the side of the distribution plate where the nozzles are arranged, and to prevent the spraying liquid from influencing the paint spraying process on the surface of the plate.
Furthermore, the spray liquid recovery assembly comprises a leakage plate, a spray liquid cavity, a circulating pump, a filter layer and a slag discharge assembly;
the bushing plate is arranged on the uppermost layer of the lower bottom surface of the paint spraying cavity;
the filter layer is arranged on the lower layer of the bushing plate;
the spraying liquid cavity is arranged below the filter layer;
the spraying liquid with paint slag passes through the drain plate and flows onto the filtering layer, the paint slag is filtered by the filtering layer, and the filtered spraying liquid flows into the spraying liquid cavity;
the circulating pump pumps the spraying liquid in the spraying liquid cavity back to the input pipe again to form the circulation of the spraying liquid.
The filter layer is filled with filter filler.
Furthermore, a slag discharging cavity is formed between the filter layer and the bushing plate, a slag discharging opening is formed in the side wall of the paint spraying cavity and corresponds to the slag discharging cavity, and a slag discharging door is hinged to the slag discharging opening;
the slag discharging assembly pushes the paint slag accumulated in the slag discharging cavity out of the slag discharging door in the lateral direction.
Furthermore, the slag discharging assembly is arranged in the middle of the slag discharging cavity and comprises a slag discharging cylinder, a piston rod is arranged in the slag discharging cylinder, and a shovel head is arranged at the end part of the piston rod. The shovel head discharges paint slag in the slag discharging cavity by the forward pushing of the piston rod.
Furthermore, the first conveying rail, the second conveying rail and the third conveying rail are respectively composed of an upper group of screw rods and a lower group of screw rods, and each group of screw rods is composed of two parallel transmission screw rods;
the transmission screw pitches in the first conveying rail and the third conveying rail are equal.
Furthermore, the plate conveying assembly is a support plate which is in threaded matching with the first conveying rail, the second conveying rail and the third conveying rail.
Further, two carrier plates are matched with one plate during conveying, one side of each carrier plate is respectively pressed against the upper side edge and the lower side edge of the plate, and the other side of each carrier plate is provided with a # -shaped external thread groove;
the "#" type external thread groove comprises two groups of external threads which are vertical to each other, including a transverse external thread or a longitudinal external thread;
the transverse external threads are matched with the first conveying rail and the third conveying rail;
the longitudinal external threads are matched with the second conveying rail.
The support plate is provided with a circle of limiting bulges on one surface abutting against the side edge of the plate, and the inner edges of the limiting bulges are matched with the outer edges of the side surfaces of the plate. The plate and the carrying plate can be limited by the limiting bulge when being pressed against each other, and lateral sliding is avoided.
Compared with the prior art, the invention has the following advantages:
1) the conveying of panels in the paint spraying process is completed through the cooperation of the first conveying rail, the second conveying rail, the third conveying rail and the support plate, the automatic feeding in the paint spraying process is directly achieved through the cooperation of the first conveying rail and the second conveying rail, the automatic discharging after the paint spraying is completed is achieved through the cooperation of the second conveying rail and the third conveying rail, the automatic paint spraying of a spray head is achieved in the paint spraying process, the automatic spraying of all paint spraying processes is completely achieved, and the production efficiency and the yield are remarkably improved.
2) The automatic paint mist absorption assembly is introduced, the sprayer sprays paint mist coagulant to absorb paint mist dispersed in the paint spraying cavity, the spraying liquid recovery assembly recovers spraying liquid, paint residues in the spraying liquid are filtered out, and the filtered spraying liquid is sprayed back to the sprayer, so that the efficient absorption of the paint mist is completed, and the influence on operators and the surrounding working environment is avoided.
Drawings
FIG. 1 is a schematic view of the automatic low-row paint spraying apparatus according to the present invention;
FIG. 2 is a schematic sectional view of a paint spray chamber according to the present invention;
FIG. 3 is a view showing the structure of the carrier plate and the driving screw according to the present invention;
FIG. 4 is a schematic structural view of a carrier plate and a clamped plate according to the present invention;
FIG. 5 is a schematic structural diagram of a thread surface of a carrier plate according to the present invention;
fig. 6 is a schematic structural view of a pressing surface of the carrier plate according to the present invention.
In the figure: 1. the plate-spraying device comprises a plate storage cavity, 2, plates, 3, a first conveying rail, 4, a paint spraying cavity, 5, a second conveying rail, 6, a nozzle, 7, a sprayer, 8, a distributing plate, 9, a pre-baking paint cavity, 10, a third conveying rail, 11, a suction fan, 12, a circulating pump, 13, a slag discharge door, 14, a spraying liquid cavity, 15, a filtering layer, 16, a shovel head, 17, a piston rod, 18, a slag discharge cylinder, 19, a support plate, 191, a transverse external thread, 192, a longitudinal external thread, 193, a limiting bulge, 20, a transmission screw, 21 and a leakage plate.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
The medium-automatic low-row paint spraying device in the embodiment comprises a board storage cavity 1, a paint spraying cavity 4, a nozzle 6, a sprayer 7, a spraying liquid recycling assembly, a pre-drying paint cavity 9 and a board conveying assembly, and is shown in fig. 1 and 2.
A first conveying rail 3 is arranged in the plate storage chamber 1, wherein a plurality of plates 2 are vertically arranged.
A second conveying rail 5 which is vertical to and communicated with the first conveying rail 3 is arranged in the paint spraying cavity 4. A plurality of spray nozzles 6 are evenly distributed on the inner walls of both sides of the painting chamber 4, and can paint both sides of the panel 2 on the second conveying rail 5. A distribution plate 8 is also arranged in the painting chamber 4, a plurality of nozzles 6 are uniformly connected to the distribution plate 8, and the distribution plate 8 supplies pressure ink to the nozzles 6.
The sprayer 7, see fig. 2, sprays a paint mist coagulant so that the paint mist dispersed in the painting chamber 4 is absorbed. The sprayer 7 comprises an input pipe 71 and a spray head 72 arranged at the top end of the input pipe 71; the spraying liquid contains paint mist coagulant; the spraying range of the spraying liquid is between the surface of the distributing plate 8 which is not provided with the nozzle 6 and the side wall surface of the paint spraying cavity 4. The reason for setting this range is to prevent the spraying liquid from spraying on the side of the plate 2 where the nozzles 6 are provided on the distribution plate 8, and to prevent the spraying liquid from affecting the painting process on the surface of the plate 2.
And the pre-baking paint cavity 9 is provided with a third conveying rail 10 which is vertical to and communicated with the second conveying rail 5, and the plate 2 enters the pre-baking paint cavity 9 for temporary storage.
And a suction fan 11 is arranged at one end of the paint spraying cavity 4 close to the pre-baking paint cavity 9, and the residual paint mist can be absorbed by the suction fan 11. The inlet end of the suction fan 11 is connected to one end, close to the pre-baking paint cavity 9, of the paint spraying cavity 4, the outlet end of the suction fan 11 is connected with the flame burner, and the flame burner burns sucked paint mist.
And the spraying liquid recovery component is used for recovering the spraying liquid, filtering paint slag in the spraying liquid, and pumping the filtered spraying liquid back to the sprayer 7. The spray liquid recovery assembly comprises a leakage plate 21, a spray liquid cavity 14, a circulating pump 12, a filter layer 15 and a slag discharge assembly. The bushing 21 is arranged on the uppermost layer of the lower bottom surface of the paint spraying cavity 4. The filter layer 15 is arranged at the next layer of the nozzle plate 21. The spraying liquid cavity 14 is arranged below the filter layer 15. The spraying liquid with paint slag passes through the drain plate 21 and flows onto the filter layer 15, the paint slag is filtered by the filter layer 15, and the filtered spraying liquid flows into the spraying liquid cavity 14. The circulating pump 12 pumps the spray liquid in the spray liquid chamber 14 back into the input pipe 71, so as to form the circulation of the spray liquid. The filter layer 15 is filled with filter packing. A slag discharging cavity is formed between the filter layer 15 and the bushing plate 21, a slag discharging opening is formed in the position, corresponding to the slag discharging cavity, on the side wall of the paint spraying cavity 4, and a slag discharging door 13 is hinged to the opening of the slag discharging opening. The slag discharging assembly pushes the paint slag accumulated in the slag discharging cavity out of the slag discharging door 13 in the lateral direction. The slag discharging assembly is arranged in the middle of the slag discharging cavity and comprises a slag discharging cylinder 18, a piston rod 17 is arranged in the slag discharging cylinder 18, and a shovel head 16 is arranged at the end part of the piston rod 17. The shovel head 16 discharges paint slag in the slag discharging cavity by the forward pushing of the piston rod 17.
The sheet conveying assembly is capable of carrying a sheet 2 horizontally moving on the first conveying rail 3, the second conveying rail 5 and the third conveying rail 10. The first conveying rail 3, the second conveying rail 5 and the third conveying rail 10 are respectively composed of an upper group of screw rods and a lower group of screw rods, referring to fig. 3, fig. 4, fig. 5 and fig. 6, each group of screw rods is composed of two parallel transmission screw rods 20, the transmission screw rods 20 are driven by motors at the end parts of the transmission screw rods, and the transmission motors are electrically connected with the ARM processor and can be connected with external terminals to realize man-machine interaction. The drive screws 20 in the first conveyor rail 3 and the third conveyor rail 10 are equally spaced. The plate conveying assembly is a carrier plate 19 which is matched with the first conveying rail 3, the second conveying rail 5 and the third conveying rail 10 in a threaded mode. Two carrier plates 19 are matched with one plate 2, one side of each carrier plate 19 is respectively pressed against the upper side and the lower side of the plate 2, the other side of each carrier plate 19 is provided with a # -shaped external thread groove, the carrier plates 19 are matched with the external threads of the transmission screw rods 19 through the external thread grooves, and the carrier plates 13 realize horizontal displacement when the transmission screw rods 20 rotate. The "#" type of external thread groove includes two sets of external threads that are perpendicular to each other, including either the transverse external threads 191 or the longitudinal external threads 192. The transverse external thread 191 matches the first conveyor rail 3 and the third conveyor rail 10. The longitudinal external thread 192 mates with the second conveyor rail 5. One side of the carrier plate 19, which is pressed against the side of the plate 2, is provided with a circle of limiting protrusion 193, and the inner edge of the limiting protrusion 193 is matched with the outer edge of the side of the plate 2. So that the plate is limited by the limiting protrusion 193 when the plate is pressed against the carrier plate 19, thereby preventing lateral sliding.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.