CN208612802U - Powder electrostatic coating device and system - Google Patents

Abstract

The utility model provides a kind of powder electrostatic coating device and system, the device includes: the first roller conveyor, first roller conveyor is used for horizontal feed wooden workpiece, it includes carriage, roller and drum drive disposed in parallel on carriage, is equipped with washer at intervals on the roller；Multiple grounding electrodes, multiple grounding electrode are arranged between roller at intervals；Chamber is sprayed, the spraying chamber is located above first roller conveyor and is equipped with spraying equipment above the spraying chamber interior；It is described to be used to provide dusty spray for the spraying equipment for powder equipment for powder equipment；And controller, the grounding electrode and the spraying equipment are connected, to control the ground connection of the grounding electrode and the spraying operation of the spraying equipment.

Description

Powder electrostatic coating device and system

Technical field

The utility model relates to furniture surface processing technique more particularly to a kind of powder electrostatic coatings for furniture production Device and system.

Background technique

Currently, significant component of wood furniture is using paint coating process, but with the continuous increasing of environmental protection pressure Add, furniture manufacturer has received very big limitation to the use of paint, because can be to human health containing harmful substance in paint There are harm, and according to the requirement in Chinese Ministry of Environmental Protection's in October, 2017, the total usage amount of paint of all furniture producers is needed to the year two thousand twenty bottom Reduce the 60% of entire furniture spray painting amount.

In recent years, with the raising of people's health consciousness, have to the volatile matter of lacquer furniture in use higher Cognition, it is appreciated that long-term organic matter volatilization will cause many chronic diseases to lacquer furniture in use, especially right Children's health has a significant impact, therefore demand of the furniture user to environment-friendly type, non-volatile paint replacement product is more and more stronger It is strong.

In recent years, using powder coating (dust) technique wood furniture it is more and more popular with consumers and concern. Powder coating process does not use any solvent, and non-volatility organic matter i.e. other noxious gas emissions do not pollute the environment, because of it Environmental protection characteristic in production and use process is the one of good solution and furniture powder coating that replacement furniture paints Big advantage.

Currently, wood furniture dusts relatively more in foreign applications, but popularity rate is also relatively low at home.Existing market Wood furniture spraying line all using suspension conveying by the way of, as shown in Figure 1, i.e. furniture plate surface chain hang by way of Carry out coating and solidification.This mode of traditional wood furniture spraying line suspension conveying is to imitate the side of general metal plate member Formula, but because furniture board is that good conductor of electricity, brought problem be not main to concentrate are as follows: (1) powder problem on than more prominent yet. To guarantee the face Furniture panel B hole few as far as possible, the form for being all made of single-point metal lift hook is hung, and can bring Railway Project in this way: A), excellent because being grounded at metal lift hook, understand preferentially upper powder, causes metal hanger and powder in plate face close positions bad.B), for For entire plate face, position is contacted for suspension hook and workpiece, is that entire plate face is grounded nearest place, the powder in this place can be with Centered on suspension hook point, a heronsbill shape is formed, causes plate face bad.C), for northern area, because of winter air humidity Low, plate face moisture content is low, and plate face conduction is bad, causes the not upper powder of workpiece, and northern area probably has the time or so half a year not every year It can production.(2) problem of solidification: traditional hanging form plate face single-point or two point hanging after, because of workpiece moulding problem, focus point with hang Hook in a line, does not there is the situation of skew after causing plate face to hang, and workpiece has swing situation during transportation.To avoid Skew, Moving Workpieces caused by swing cause to damage to the infra-red radiation fluorescent tube of consolidation zone, and general infrared lamp and workpiece are hung Hook reserves certain safe swinging distance.This distance will cause two problems: a) too far then because being difficult to transfer at random in production Solidification is incomplete.B) excessively close then powder was easy solidification, and plate face forms risk that is bad, and having tubes breaks down.

Problem above causes various limitations that wood furniture plate dusts, and production qualification rate is very low, this is to cause mesh Up till now wood furniture dusted the main reason for cannot being widely popularized.

Utility model content

In consideration of it, the utility model embodiment provides a kind of powder electrostatic coating device and system, to eliminate or improve One or more defects existing in the prior art.

The technical solution of the utility model is as follows:

A kind of powder electrostatic coating device, the device include:

First roller conveyor, first roller conveyor are used for horizontal feed workpiece comprising carriage, in carriage On roller and drum drive disposed in parallel, be equipped with washer at intervals on the roller；

Multiple grounding electrodes, multiple grounding electrode are arranged between roller at intervals；

Spray chamber, the spraying chamber be located above first roller conveyor and the spraying chamber interior it is upper Side is equipped with spraying equipment, and the spraying chamber includes frame and the side plate for being installed on frame, and the spraying equipment is installed on On frame above the spraying chamber, and the spraying equipment includes reciprocator and is back and forth transported by reciprocator's drive Dynamic podwer gun；

It is described to be used to provide dusty spray for the spraying equipment for powder equipment for powder equipment；And

Controller controls the ground connection of the grounding electrode and the spraying operation of the spraying equipment.

Preferably, the roller of first roller conveyor includes the metal roller being cooperatively arranged and nonmetallic rolling Cylinder.

Preferably, center conveyor line symmetry arrangement of the multiple grounding electrode relative to the first roller conveyor.

Preferably, described device further include: powder automatic cleaning apparatus and powder recovering device；Wherein, the powder from Dynamic cleaning plant includes: high pressure gas generation device, is used to generate high pressure gas；And blower, it is located at described first Position between the lower part and roller of the transporting flat of roller conveyor, and the upper tube wall of blower has one or more Aperture, the high pressure gas for being generated using the high pressure gas generation device blow to the back side for being sprayed-on workpiece, with Clear up the workpiece reverse side being sprayed-on；The powder recovering device includes: powder collecting board, is located at below the blower, is used There is exhausting groove in the middle part of the powder that the reception blower is blown off, the powder collecting board；Air extractor is produced with negative pressure Generating apparatus and recycling powder containing part, connect the exhausting groove by exhaust tube, by the powder on powder collecting board through exhausting groove Exhaust tube is sucked, the powder on powder collecting board is evacuated to recycling powder containing part.

Preferably, described device further include: be placed in the photodetector unit of first roller conveyor front, the photoelectricity Detection unit is for detecting workpiece to be sprayed；Wherein, the controller connects the photodetector unit, to be based on the light The testing result of electro-detection unit controls the ground connection of the grounding electrode and the spraying operation of the spraying equipment.

Preferably, the spraying chamber includes frame and the removable side panel for being installed on frame, the spraying equipment peace Loaded on the bracket above the spraying chamber, the spraying equipment includes reciprocator and drives progress reciprocal by reciprocator The podwer gun of movement.

Preferably, described device further include: piece uploading section Roller conveyor, positioned at first roller conveyor front end, and with First roller conveyor is mutually connected.

Preferably, the carriage bottom of first roller conveyor have pulley and be engaged with the pulley, to The sliding rail that the spraying chamber side is stretched out, wherein the lengths of frame of the spraying chamber is longer than first roller conveyor Carriage length.

Preferably, described device further include: visual scanning device is mounted on powder room inlet and connects control Device sends controller to for shooting the image of workpiece to be sprayed, and by the image of shooting；And

Spray robot, is located at the two sides in the powder room, and connects the controller, the installation of the spray robot The powder room is protruded into the aperture on the removable side panel that the podwer gun of mechanical arm passes through the spray room；

The image for the workpiece to be sprayed that the controller is shot based on the visual scanning device carries out location of workpiece identification, Workpiece position signal is generated, the spray robot is based on the workpiece position signal and tracks the workpiece, and carries out to workpiece Spraying.

Preferably, described device further include: powder curing system, the powder curing system are located at first roller conveying Machine rear portion comprising second workpiece plane conveyor and the powder curing furnace for accommodating the second workpiece plane conveyor, it is described Powder curing furnace includes multiple sections, and heating unit difference section is all had in each section and corresponds to different solidification temperature areas Between.

Preferably, described device further include: positioned at the refrigeration equipment of the output end of the powder curing furnace, for solidification Workpiece afterwards carries out pressure cooling.

Preferably, described device further include: infrared measurement of temperature unit is used to detect workpiece temperature in curing oven；And with The man-machine interaction unit of controller connection；The heating unit connects controller with the infrared measurement of temperature unit, and controller is based on The temperature of the infrared measurement of temperature unit detection controls the heating operation of the heating unit.

A kind of electrostatic powder coating system including device as described above, the system also includes: external device (ED), it is described External device (ED) is industrial personal computer, is communicated to connect with controller.

The utility model embodiment can overcome the problems, such as the upper powder such as the upper powder of traditional spraying line is uneven, upper powder is bad, energy It is enough to obtain upper powder effect well, workpiece's qualification rate is improved, and reduce the limitation to coating season.Additionally it is possible to gram Take problem of solidification caused by the dusting of traditional hanging form.

Further, the utility model embodiment can be improved solidification effect, improve product quality.

Further, using transversely movable conveyer, the utility model embodiment can also improve the cleaning of powder room Convenience.

The attendant advantages, purpose and feature of the utility model will will be partly illustrated in the following description, and Those of ordinary skill in the art partly will be become with obvious after research hereafter, or can be with reality according to the present utility model It tramples and knows.The purpose of this utility model and further advantage can be by written explanations and its claims and attached drawing The structure specifically noted is realized and is obtained.

It will be appreciated by those skilled in the art that can be not limited to objects and advantages of the utility model above It is specific described, and the above and other mesh that the utility model can be realized will be more clearly understood according to following detailed description 's.

Detailed description of the invention

Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application, The restriction to the utility model is not constituted.Referring to the following drawings, it is better understood with many aspects of the utility model.Attached drawing In component part be not necessarily to scale, it is preferred that emphasis is clearly exemplify the principles of the present invention.In the accompanying drawings:

Fig. 1 is the suspension mode of movement schematic diagram of existing wood furniture spraying line.

Fig. 2 is the overall structure diagram of powder electrostatic coating system (spraying line) in an embodiment of the present invention.

Fig. 3 is plane conveying cylinder line schematic diagram in an embodiment of the present invention.

Fig. 4 is powder room part side plate to be omitted and the powder coating device part of top cover shows in an embodiment of the present invention It is intended to.

Fig. 5 is the schematic diagram of the arrangement of grounding electrode in an embodiment of the present invention.

Fig. 6 is to show robot in an embodiment of the present invention to fill spray the powder coating schematic device of system.

Fig. 7 is the reception schematic diagram of workpiece reverse side powder automatic cleaning apparatus in an embodiment of the present invention.

Fig. 8 shows the schematic diagram of the powder collecting board of powder recovering device in an embodiment of the present invention.

Fig. 9 is powder room and transversely movable roller conveyor schematic diagram in an embodiment of the present invention.

Figure 10 is the schematic block diagram of finishing system in an embodiment of the present invention.

Drawing reference numeral:

10: powder coating device 20: powder curing device 100: controller

110 powder rooms 111: powder room frame 112: reciprocator

113: podwer gun 114: grating 1141: upper grating

1142: lower grating 115: visual scanning system 116: robot

117: robot base 118: 120: the first roller conveyor of electronic box

121: roller 122: washer 123: sliding rail

124: grounding electrode 125: wooden workpiece 128: pulley

132: powder reception funnel 133: exhaust tube 134: powder box

135: powder collecting board 136: exhausting groove 201: man-machine interaction unit

130: powder recovering device 140: spraying equipment 150: powder automatic cleaning apparatus

160: curing oven heating unit 170: curing oven temperature measuring unit 200: long-range industrial personal computer

Specific embodiment

For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached Figure, is described in further details the utility model.Here, the exemplary embodiment and its explanation of the utility model are for solving The utility model is released, but is not intended to limit the scope of the present invention.

Here, it should also be noted that, in order to avoid having obscured the utility model because of unnecessary details, in the accompanying drawings It illustrate only the structure and/or processing step closely related with scheme according to the present utility model, and be omitted practical with this The little other details of new relationship.

In addition it is also necessary to illustrate, in the utility model embodiment, unless otherwise specified, term is " even Connect " can be and be directly connected to, be also possible to it is intermediate have being indirectly connected with for additional tie members, and can be wired or wireless company It connects.

Hereinafter, the embodiments of the present invention will be described with reference to the drawings.In the accompanying drawings, identical appended drawing reference represents Same or similar component or same or like step.

In the utility model embodiment, it is defeated that the traditional workpiece of spraying line (such as plate) hanging conveying is changed to workpiece planarization It send, and is controllably designed in conjunction with multi-electrode, to solve the problems, such as upper powder in the prior art, in addition it is also possible to solve traditional workpiece Hanging conveys brought problem of solidification.

Fig. 2 show the overall structure signal of wooden workpiece finishing system (spraying line) in an embodiment of the present invention Figure.As shown in Fig. 2, the wooden workpiece finishing system in the utility model embodiment includes powder coating device 10 and powder curing Device 20.Powder coating device 20 includes powder room 110 and the roller conveyor (the first roller conveyor) 120 across powder room, Wherein, roller conveyor is also referred to as Roller conveyor, is used for horizontal feed wooden workpiece, may include carriage, on carriage Roller disposed in parallel and the drum drive for driving roller.Fig. 3 show plane in an embodiment of the present invention and rolls The schematic diagram of cylinder conveyer, as shown in figure 3, compartment of terrain is equipped with multiple washers 122 on every roller 121.The washer is flexible pad It encloses, the purpose of cushioning circle is the contact surface in order to reduce workpiece and roller on roller, prevents workpiece from scratching, and contact surface is easy Powder is hidden, be easy to cause product bad, cushioning circle can overcome this problem on roller.

Powder room 110 includes frame, partly or entirely dismountable side plate, top cover and bottom plate, they are grouped together into Spray chamber.Spraying chamber, which is located above 120 top of roller conveyor and spraying chamber interior, is equipped with spraying equipment.Specifically Ground, spraying equipment are mountable on the frame above spraying chamber.As an example, spraying equipment may include 112 He of reciprocator The podwer gun 113 that moves back and forth is driven by reciprocator, podwer gun via for tube cell connection for powder equipment (powder supply case, not Show), enable the coating powder in powder supply case to reach podwer gun via for tube cell.For reciprocator, can there are many Way of realization, since it belongs to existing structure design, the utility model is no longer described in detail.Fig. 4, which is shown, is omitted powder room The powder coating device partial schematic diagram of part side plate and top cover, in order to preferably show inside powder room.In addition to tool in powder room Have except spraying equipment and conveyer, be additionally provided with multiple grounding electrodes 124, multiple grounding electrodes are arranged in roller dispersiblely Between.This multiple electrodes can have flexible arrangement mode between the rollers, and be not limited to the arrangement mode of certain fixation.One In a embodiment, multiple grounding electrodes can be relative to the center conveyor line symmetry arrangement of roller conveyor, as shown in figure 5, example Such as, multiple grounding electrodes 124 are arranged by regular array mode between the rollers, but the utility model is not limited to this.In this way, When wooden workpiece is delivered in powder room through roller conveyor, same plate face can accomplish that multipoint electrode connects, and substantially improve and solve The plate face overdrying of workpiece and caused by upper powder hardly possible situation.Also, in workpiece when being moved on roller conveyor, electrode and workpiece Plate face forms relative motion, i.e. electrode and the relative position of workpiece plate face is not fixed, can well solve unitary electrode and fix The situation of heronsbill is caused in plate face in position.In addition, in the utility model, because podwer gun is arranged in workpiece top, sprinkling Powder is drifted downwards by gravity, is trickled down naturally in workpiece surface, therefore compared to the coating of traditional hanging conveying workpieces Mode can assist upper powder by gravity, further improve powder problem.

The roller of roller conveyor can be non-metal roller in the utility model embodiment.In order to further assist Powder, in the preferred embodiment in the utility model, what the roller of roller conveyor was matched using metal roller and non-metal roller Mode is arranged, i.e. the roller of roller conveyor includes the metal roller and non-metal roller being cooperatively arranged.Herein, " matching " includes that metal roller and non-metal roller are alternately arranged according to certain rule intersection, for example, can be in every 2 gold Belong to and arrange 1 or several non-metal rollers between roller, or arranges 1 or several metals between every 2 non-metal rollers Roller.Because workpiece is non-conductor, powder utilization is can be improved in the arrangement mode that metal roller and non-metal roller match.

In addition, the earthed circuit of these grounding electrodes is controlled by controller, simultaneously in the utility model embodiment Controller is also connected with spraying equipment, to control the spraying operation of spraying equipment.

Further, in an embodiment of the utility model, powder room inlet (or being spraying chamber inlet) It is additionally provided with photodetector unit, which for example can be echelette, and but it is not limited to this, such as can be with It is multiple groups electric eye etc..Photodetector unit can be set in plane conveyor both sides, powder room entrance two sides or powder room entrance The upper and lower part position (but it is not limited to this) at place, photodetector unit are used to detect the arrival of workpiece to be sprayed, Fig. 4 In the transmitting terminal of echelette is shown and receiving end can be located separately upper and lower part (upper 1141 He of grating of powder room inlet Lower grating 1142).Controller connects photodetector unit, the workpiece arrival time detected according to photodetector unit and workpiece Transmission speed can determine that workpiece enters spray room and needs to start the position of the time and workpiece to dust, and accordingly control ground connection The connection of electrode and the dusting operation of static powder gun.By controlling each grounding electrode automatic earthing, covered in no workpiece When covering electrode position, the controllable ground connection terminal of controller, which automatically controls, disconnects ground connection.In one embodiment, controller can connect Drum drive can control the workpiece conveying speed of roller conveyor.In the utility model embodiment, examined by means of photoelectricity Survey unit detection workpiece arrival, controller can more accurately control the ground connection of grounding electrode, podwer gun dust the time with And position of dusting.Powder coating device also has electronic box 118, for powering for each electric component.

Further, powder is insufficient on the side position of workpiece or groove in order to prevent, in the preferred embodiment in the utility model, also It is filled spray using the robot system of filling spray.As Fig. 6 show with robot fill spray system powder coating device signal Figure.As shown in fig. 6, the robot system of filling spray include: visual scanning device, spray robot and connection visual scanning device and The controller of spray robot.Visual scanning device can for example be located at powder room inlet, can be to be sprayed for shooting The image workpiece scan camera shooting head of workpiece；Controller identified image captured by camera based on position identification technology, It identifies the location of workpiece, generates workpiece position signal, and be sent to spray robot.Due to carrying out position identification based on image Technology is existing achievable technology, and this will not be repeated here.Spray robot can be located at the two sides in powder room, be believed based on the location of workpiece Number tracking workpiece, and the specific position of workpiece (such as side position or groove) is sprayed.Spray robot is installed on mechanical arm Podwer gun pass through spray room removable side panel on aperture protrude into powder room.The big face of workpiece is to carry automatic powder spraying using reciprocating engine What rifle was sprayed, side position or groove etc. are not easy the ground sprayed to the system realization that can fill spray by robot and fill spray, so as to It realizes unattended full-automatic.

In existing furniture board during production, it is save the cost, often there is a kind of situation, i.e. 5 face coatings, the Six faces (reverse side) not coating powder but using patch triamine plate or ultraviolet (UV) coating by the way of.But because powder spray is quiet Electro-cladding spraying, when using traditional hanging form coating, the 6th face can not accomplish powder, and existing recovery system does not have There is reverse side automatic flushing device.Because the utility model uses plane spraying process, workpiece height position is extremely accurate, therefore at this In utility model embodiment, after workpiece is sprayed-on, before solidification, proposes to set air blowing by pressure-air positioning, clear up reverse side Then the powder cleaned up is evacuated to recovery system by strong-force exhaust again by the powder of attachment, with recycling.Fig. 7 is shown The reception schematic diagram of workpiece reverse side powder automatic cleaning apparatus in the utility model embodiment, the reverse side powder automatic cleaning apparatus Blower including high pressure gas generation device (not shown) and connection high pressure gas generating device.As shown in Fig. 7, it is being grounded Position between the downstream of electrode, the lower part and roller of the transporting flat of roller conveyor be provided with tube wall belt hole more blow Air hose 126,126 one end of blower connect high pressure gas generation device (such as air compressor machine, high-pressure blast for generating high pressure gas Machine etc.), other end closing.Herein, so-called " high pressure " refers to the positive pressure higher than atmospheric pressure, for example, 2~5 atmospheric pressure, but The utility model is not limited to this.Specifically, have one or more apertures 127 (such as along the longitudinal direction of pipe on blower upper tube wall Multiple apertures of arrangement), due to 127 opening upwards of aperture (i.e. towards workpiece), the height generated using high pressure gas generation device Body of calming the anger can blow to the back side for being sprayed-on workpiece, to clear up the workpiece reverse side being sprayed-on.Preferably, in each blower Pipeline on can be equipped with the solenoid valve that control by controller, controller can grating based on powder room inlet or camera control The electromagnetic valve switch of each blower realizes that fixed point is blown, to control blow-out position by grating or camera to avoid influence To the position for not needing cleaning.Workpiece reverse side powder automatic cleaning apparatus as shown in Figure 7 is anti-due to can effectively clear up workpiece The powder in face is simultaneously recycled, and the recycling of powder is also substantially increased.

In an embodiment of the utility model, in the lower section of blower, also there is powder collecting board (powder room bottom plate) 135, Its a part as powder recovering device, for receiving the powder to leak down in the powder and spraying process that blower is blown off, There is exhausting groove 136 in the middle part of powder collecting board.In the utility model embodiment, powder recovering device further include: bleed motor (not shown) and recycling powder containing part, bleed motor connect exhausting groove by exhaust tube, and the powder on powder collecting board is passed through Exhausting groove sucks exhaust tube, then is extracted into recycling powder containing part through exhaust tube and filter house.In an embodiment of the utility model, Recycling powder containing part includes the rectangular powder box 134 of funnel-form receiving unit 132 and receiving powder, as shown in Figure 8.In Fig. 8, it is The part-structure of display powder recovering device and concealed segment cylinder.The utility model embodiment will be cleared up by strong-force exhaust Powder out is evacuated to recovery system, improves recovering effect.

After completing spraying operation in powder room, in clear powder colour changing, need to clean out inside powder room.But work as roller When conveyer is applied in powder room, since roller conveyor has blocking to powder room bottom plate, it is unfavorable for quick clear powder, therefore, at this In utility model preferred embodiment, the roller conveyor across powder room is designed to can be relative to powder room transverse shifting.Such as Shown in Fig. 9, can transverse shifting roller conveyor carriage bottom have pulley 128 and be engaged with pulley, Xiang Fenfang The sliding rail 123 that (spraying chamber) side is stretched out, wherein as shown in fig. 6, to be longer than flat rollers defeated for the length of the frame 111 in powder room The length of the carriage of machine is sent, so that after being removed powder room lower part side plate, flat rollers conveyer can in clear powder colour changing It by the conveniently moving of pulley on the slide rail is removed from the side in powder room, fast and easy is cleared up inside powder room.In the present embodiment In, since the length of the carriage of flat rollers conveyer is shorter, it is preferable that the first roller conveyor front end be also equipped with The piece uploading section Roller conveyor that the roller conveyor is mutually connected, to extend workpiece delivered length, the conveying of more convenient workpiece.Piece uploading section Also flexible gaskets (such as silicone gasket) are all cased on every roller of Roller conveyor to be prevented with reducing the contact area of roller and workpiece Scratch workpiece.

It as above is the description to powder coating part in the utility model embodiment, the utility model is to powder curing part Also it is improved, it is some present in existing solidification process to solve the problems, such as.Description workpiece carries out powder painting emphatically below Powder curing system after dress, the powder curing system are located at roller conveyor rear portion, the workpiece being sprayed-on exported from powder room It is transported in curing oven and is solidified through the roller conveyor (second tin roller conveyer) across curing oven.

Referring to the external structure of powder curing device in the utility model embodiment shown in Figure 2.The powder curing system System includes second tin roller conveyer and the powder curing furnace for accommodating the workpiece planarization conveyer, is equipped with and adds in the powder curing furnace Hot cell (such as radiation heating tube).In the present embodiment, it is evenly spaced apart to be equipped with multiple washers on the roller of second conveyer, it should Coil is the flexible gaskets of high temperature resistant insulation, is in order to completely cut off workpiece and roller and workpiece surface be prevented to be scratched, because roller is long Phase toasts in furnace, and temperature is higher, will cause workpiece surface damage after direct contact workpiece, is adopted as the non-of the non-conductor of heat Metal washer avoids this problem.

In traditional curing oven wire body, be dust plank and powder are carried out using quick-setting mode it is quickly solid Change, general 3-5 minutes need to be warming up to 150 degree or so.I.e. after workpiece is rapidly heated, ground, that is, plank can also heat up, and work as plank When interior moisture evaporation, plank edge crack is caused naturally, and powdery paints is rapidly heated reaction, without sufficiently effective stream It is flat, cracking part cannot be given and make up, cause fraction defective high, this problem cannot solve always.And in the utility model The curing oven of design given powder in hinge and reacted the phase with enough flow times using multi-temperature zone form, using powder from Levelability fills up the corner of cracking, improves workpiece's qualification rate.Powder curing furnace in the utility model embodiment includes multiple sections Section, more than one segment form a solidification temperature section, and the number of stages in different solidification temperature sections can be identical or not Together, heating unit is all had in each solidification temperature section, different solidification temperature sections correspond to different solidification temperature sections.Example Such as, as shown in Fig. 2, powder curing furnace includes 9 segments, preceding 8 segments can form three solidification temperature sections, three corresponding Temperature range, naturally it is also possible to be designed as more solidification temperature sections.As an example, preceding 2 segment shapes in preceding 8 segments At first solidification temperature section can be pre-heat section, the temperature in this section curing oven for example can be controlled in 90-100 DEG C； Second solidification temperature section that intermediate 2 segments are formed in preceding 8 segments can be buffer field, the temperature in this section curing oven Degree for example can be controlled in 60-70 DEG C；The third solidification temperature section that last 3 segments in preceding 8 segments are formed can be strong Solidify section, the temperature in this section curing oven for example can be controlled in 140-150 DEG C, and the temperature range in this example is only to lift Example, the utility model are not limited to this.The utility model uses the form of multi-temperature zone, gives powder in the hinge reaction phase with enough Flow time fill up the corner of cracking using the self-leveling of powder, greatly improve the qualification rate of workpiece.

In one preferred embodiment of the utility model, also the thermal insulation material of insulating layer is improved, using new material Insulating layer replaces traditional insulating layer (such as rock wool or aluminium silicate wool).Traditional rock wool heat-preservation effect is poor, production and use process In have problem of environmental pollution.Insulating layer is transformed in the utility model, and curing oven insulating layer is carried out using aerogel Heat preservation, furnace plate can accomplish thinner than traditional furnace plate by 80%, and heat insulation effect is good, and environmental protection, furnace plate are light, are easy to move cleaning.

Further, in order to overcome workpiece punching shear caused by workpiece plate face long-term overheat in conventional curing process, this Utility model also sets up in the output end (such as in the last one segment of curing oven) of powder curing furnace and forces cooling zone, i.e., in powder Refrigeration equipment is arranged in the output end of last curing oven, for carrying out pressure cooling to the workpiece after solidification after the completion of workpiece solidification, To be quickly cooled down workpiece plate face, punching shear is caused to prevent plate face long-term overheat.

Further, the utility model also proposed a kind of closed-loop control system of solidification temperature.It is in existing solidification It is that environment temperature is detected using environment temperature meter, the environment temperature that will test is joined as the solidification temperature in curing oven in system Number, a defect of this temperature detection method is the temperature of environment temperature and workpiece itself or has difference, only detects environment Temperature can not accurately reflect the temperature of various workpiece itself, this affects the accurate control to solidification process, thus can shadow Ring solidification result.In the closed-loop control system of the utility model, because plane dust the location of workpiece stablize, using solidification heater The mode of temperature output closed-loop control measures workpiece temperature under current state that is, at any time by temperature-detecting device, based on measuring Current state under the temperature of workpiece be finally directed to by parameter setting auto-control heater power output ratio with reaching The most excellent and stable power output of every kind of different workpieces.In the utility model embodiment, temperature-detecting device can be with right and wrong Contact infrared measurement of temperature unit, the temperature of workpiece directly in measurement curing oven.Other than Non-contact Infrared Temperature Measurement unit, Environment temperature meter is also provided in curing oven, to provide auxiliary reference.Infrared measurement of temperature unit can or nothing wired with controller Line connects, and the heating unit in curing oven also connects controller, and infrared measurement of temperature unit sends the workpiece temperature measured to control Device, controller control the heating operation of corresponding heating unit, including increase, maintenance or reduction heating power based on the temperature Deng.In addition, hygrometer is also provided in curing oven, for providing humidity parameter and being transferred to controller.In curing oven Tail portion, is additionally provided with control device connected to the controller (such as man-machine interaction unit 201), which may include Key and/or touch screen etc., for showing measurement parameter information and manipulation information in curing oven, to be passed through by operator The controller of man-machine interaction unit and curing system interacts, to realize the control to powder curing process.It is man-machine in Fig. 2 The position of interaction interactive unit is merely illustrative, other positions for being suitable for observing and operating can also be arranged in.

Because of the product diversity having furniture made to order, client is frequently necessary to adjusting parameter in mixture manufacturing, such as according to room temperature, room Interior air humidity, adjustment solidification output power, the diversity of this parameter cause the frequent maloperation of client, cause product bad.It is right This, the utility model by using industrial personal computer adds the form of remote operator interface to complete the purpose of remote assistance client production, Remotely client can assisted to adjust parameters at any time.At this point, Ethernet can be passed through between long-range industrial personal computer and local controller Interface connection.At this point, controller receives the part temperature data of infrared measurement of temperature unit detection, and (such as by telecommunication unit Ethernet interface) it is sent to long-range industrial personal computer, and adding based on the indication signal control radiant heating unit from industrial personal computer The parameters such as thermal power.

If Figure 10 is the entire coating in an embodiment of the present invention including powder coating device and solidification equipment The block diagram of system is illustrated.As shown in Figure 10, in the system, controller 100 connects and controls grounding electrode 124, the inspection of workpiece photoelectricity Survey unit (such as grating 114), spraying equipment (such as reciprocator and podwer gun) 140, visual scanning system 115, dust robot 116, the infrared measurement of temperature of powder automatic cleaning apparatus 150, powder recovering device 130, the heating unit 160 of curing oven, curing oven Unit 170 and communication unit 180 and man-machine interaction unit 201, and communicated with long-range industrial personal computer 200, Xiang Yuancheng industry control Machine sends parameters of technique process and receives the instruction of long-range industrial personal computer, and the control instruction based on long-range industrial personal computer is operated.Figure Communication unit 180 in 10 may include telecommunication unit and short-range communication unit, telecommunication unit may be implemented with far The communication of journey industrial personal computer, short-range communication unit for example can be the short-haul connections of the realizations such as Wi-fi, bluetooth and robot etc..This In utility model embodiment, controller can be but and unlimited by PLC (programmable logic controller (PLC)), single-chip microcontroller or industrial personal computer etc. In this.The controller of the controller and control cured portion that control coating part can be the same controller, be also possible to list Only, different controller.For different controllers, controller and the control solidification of coating part of devices are controlled The controller of partial component can be connect with long-range industrial personal computer, remotely be controlled by industrial personal computer.

The utility model is based on powder coating apparatus structure as described above and system, provides a kind of utilization and is able to solve Upper powder in the prior art and coating process the problems such as solidification, it is in the method, to be painted using roller conveyor horizontal feed The wooden workpiece of painting, and the position that wooden workpiece to be sprayed reaches on flat rollers conveyer is detected, based on the to be sprayed of detection The position control that wooden workpiece reaches is located at the ground connection of multiple grounding electrodes below workpiece to be sprayed and the spray of spraying equipment Apply operation, wherein multiple grounding electrodes are arranged between roller at intervals.The powder coating apparatus structure of the utility model and System is not only adapted to spray wooden workpiece, is equally applicable for spraying other non-wooden workpieces.

System provided by the embodiment of the utility model and device, can not only overcome the upper powder of traditional spraying line it is uneven, The bad equal upper powder problem of upper powder improves workpiece's qualification rate, and reduce to coating season to achieve upper powder effect well The limitation of section.Additionally it is possible to overcome problem of solidification caused by the dusting of traditional hanging form.

Further, the utility model embodiment can improve solidification effect by improving curing oven, improve product quality.

Further, using transversely movable conveyer, the utility model embodiment can also improve the cleaning of powder room Convenience.

Further, the utility model is controlled by solidification temperature closed-loop control and long-range industrial personal computer, can be improved significantly Improve workpiece's qualification rate and workpiece quality.

The utility model is practical by novel heat insulation layer, has saved cost and has made solidification furnace plate lighter.

In short, the utility model is of great significance for the universal and popularization of furniture powder coating.

In the utility model, for feature embodiment description and/or illustrated, can it is one or more its It is used in the same manner or in a similar manner in its embodiment, and/or combines or replace with the feature of other embodiments The feature of other embodiments.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, the utility model embodiment can have various modifications and variations.All spirit in the utility model Within principle, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of powder electrostatic coating device, which is characterized in that the device includes:

First roller conveyor, first roller conveyor are used for horizontal feed workpiece comprising carriage, on carriage Roller and drum drive disposed in parallel are equipped with washer on the roller at intervals；First roller conveyor Roller include the metal roller and non-metal roller being cooperatively arranged；

Multiple grounding electrodes, multiple grounding electrode are arranged between roller at intervals；The multiple grounding electrode relative to The center conveyor line symmetry arrangement of first roller conveyor；

Chamber is sprayed, the spraying chamber is located above first roller conveyor and the top peace of the spraying chamber interior Equipped with spraying equipment, the spraying chamber includes frame and the side plate for being installed on frame, and the spraying equipment is installed on described It sprays on the frame above chamber, and the spraying equipment includes reciprocator and moved back and forth by reciprocator's drive Podwer gun；

It is described to be used to provide dusty spray for the spraying equipment for powder equipment for powder equipment；And

Controller controls the ground connection of the grounding electrode and the spraying operation of the spraying equipment.

2. powder electrostatic coating device according to claim 1, which is characterized in that described device further include: powder is automatic Cleaning plant and powder recovering device；

Wherein, the powder automatic cleaning apparatus includes:

High pressure gas generation device is used to generate high pressure gas；And

Blower is located at the position between the lower part and roller of the transporting flat of first roller conveyor, and blows The upper tube wall of air hose has one or more apertures, and the high pressure gas for being generated using the high pressure gas generation device is to quilt The back side of spraying workpiece is blown, to clear up the workpiece reverse side being sprayed-on；

The powder recovering device includes:

Powder collecting board is located at below the blower, the powder blown off for receiving the blower, and the powder is collected There is exhausting groove in the middle part of plate；

Air extractor connects the exhausting groove by exhaust tube, by powder with negative pressure generating device and recycling powder containing part Powder on last collecting board sucks exhaust tube through exhausting groove, and the powder on powder collecting board is evacuated to recycling powder containing part.

3. powder electrostatic coating device according to claim 1, which is characterized in that described device further include:

It is placed in the photodetector unit of the spraying chamber inlet, the photodetector unit is for detecting workpiece to be sprayed；

Wherein, the controller connects the photodetector unit, to be controlled based on the testing result of the photodetector unit The spraying operation of the ground connection of the grounding electrode and the spraying equipment.

4. powder electrostatic coating device according to claim 1, which is characterized in that described device further include:

Piece uploading section Roller conveyor is located at first roller conveyor front end, and is mutually connected with first roller conveyor.

5. powder electrostatic coating device according to claim 1, it is characterised in that:

The carriage bottom of first roller conveyor there is pulley and be engaged with the pulley, to the spraying chamber The sliding rail that side is stretched out, wherein the lengths of frame of the spraying chamber is longer than the length of the carriage of first roller conveyor Degree.

6. powder electrostatic coating device according to claim 1, which is characterized in that described device further include:

Visual scanning device is mounted on the spraying chamber inlet and connects controller, for shooting workpiece to be sprayed Image, and send the image of shooting to controller；And

Spray robot, is located at the two sides of the spraying chamber, and connects the controller, the installation of the spray robot The spraying chamber is protruded into the aperture on the removable side panel that the podwer gun of mechanical arm passes through the spraying chamber；

The image for the workpiece to be sprayed that the controller is shot based on the visual scanning device carries out location of workpiece identification, generates Workpiece position signal, the spray robot is based on the workpiece position signal and tracks the workpiece, and sprays to workpiece.

7. powder electrostatic coating device according to claim 1, which is characterized in that described device further include:

Powder curing system, the powder curing system are located at first roller conveyor rear portion comprising second tin roller conveying Machine and the powder curing furnace for accommodating the second tin roller conveyer, the powder curing furnace include multiple sections, in each section Heating unit is all had, different sections correspond to different solidification temperature sections.

8. powder electrostatic coating device according to claim 7, which is characterized in that described device further include:

Positioned at the refrigeration equipment of the output end of the powder curing furnace, for carrying out pressure cooling to the workpiece after solidification.

9. powder electrostatic coating device according to claim 7, which is characterized in that described device further include:

Infrared measurement of temperature unit is used to detect workpiece temperature in curing oven；And

Man-machine interaction unit connected to the controller；

The heating unit connects controller with the infrared measurement of temperature unit, and controller is detected based on the infrared measurement of temperature unit Temperature controls the heating operation of the heating unit.

10. a kind of includes the Powder Coating System of the powder electrostatic coating device as described in any one of claim 1-9, It is characterized in that, the system also includes:

External device (ED), the external device (ED) are industrial personal computer, are communicated to connect with controller.