CN210700739U - Automatic spraying unit for workpieces with long and thin structures - Google Patents
Automatic spraying unit for workpieces with long and thin structures Download PDFInfo
- Publication number
- CN210700739U CN210700739U CN201920801228.9U CN201920801228U CN210700739U CN 210700739 U CN210700739 U CN 210700739U CN 201920801228 U CN201920801228 U CN 201920801228U CN 210700739 U CN210700739 U CN 210700739U
- Authority
- CN
- China
- Prior art keywords
- spraying
- workpiece
- support frame
- conveying
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Spray Control Apparatus (AREA)
Abstract
The utility model discloses an automatic spraying unit for a workpiece with a slender structure, which comprises a box-shaped cover, a coating waste gas recovery device, a spraying device and a spraying electric control device; the box-type cover straddles and is arranged at the butt joint position of the two adjacent conveying sections which are in butt joint end to end, and a transition carrier wheel is arranged at the butt joint position; the spraying device comprises a nozzle support frame and a plurality of spraying nozzles, the nozzle support frame of a circular ring structure is vertically and fixedly arranged in a neutral position between two adjacent conveying sections of the conveying line, the nozzle support frame and a geometric central shaft of a workpiece of a slender structure are concentrically arranged, the plurality of spraying nozzles are symmetrically arranged relative to the center of the circular ring of the nozzle support frame, and the spraying directions of the spraying nozzles are right opposite to the center of the circular ring of the nozzle support frame. The utility model discloses can guarantee the homogeneity of coating under the prerequisite of realizing intelligent spraying operation to long and thin structure work piece, be applicable to the spraying process of long and thin structure work piece, the spraying process of specially adapted rack connecting rod.
Description
Technical Field
The utility model relates to an automatic spraying unit specifically is an automatic spraying unit suitable for carry out the spraying to long and thin structure work piece, belongs to intelligent spraying technical field.
Background
With the development of society and the improvement of the living standard of people, the market puts forward higher and higher requirements on the surface treatment of industrial products and living products, and the spraying is always used as a main method and means for the surface treatment of the products, namely, the coating is dispersed into mist and sprayed on the surface of a coated object, the coating forms a solid film which is firmly adhered and has certain strength and continuity, the damage of the external environment to the surface of the products can be prevented, the service life can be prolonged, simultaneously, the bright and colorful appearance and the environment can be beautified, and even special functions such as mildew resistance, sterilization, high temperature resistance, heat preservation, insulation, electric conduction, skid resistance, noise prevention and the like can be provided according to different coatings, so the spraying is an important link in the surface manufacturing process of the products.
The spraying quality is one of the important aspects of the overall quality of products, the pure manual operation is rare in the prior art, automatic spraying is adopted in large-scale manufacturing industry, the automatic spraying is a spraying method which is automatically controlled by utilizing electric appliances or mechanical principles (a mechanical arm or a robot), the automatic spraying is controlled and monitored by adopting an industrial control computer PLC program, the automatic spraying production line is generally arranged in a closed space and comprises a conveying unit, a dust removal unit, a spraying unit, an exhaust unit and a drying unit, the dust removal unit, the spraying unit and the drying unit are arranged in partitions, the exhaust unit is arranged in each partition, the conveying mechanism penetrates through the whole automatic spraying production line, workpieces or products enter a spraying chamber or a spraying room of the spraying unit through the conveying mechanism after being subjected to dust removal by the dust removal unit for spraying, enter the drying unit for drying after being sprayed, and then are output by the conveying mechanism, the industrial waste gas containing dust and mist coating waste gas which is filled in each partition section is discharged through the exhaust unit.
Aiming at workpieces with relatively small size and relatively few production processes, automatic spraying is easily realized through a multi-coordinate mechanical arm and a workpiece hanging mode, but aiming at workpieces with relatively large size and relatively many production processes, such as rod-shaped workpieces such as net racks and connecting rods, beam-shaped workpieces such as steel beams and the like and workpieces with regular shapes, because of the characteristics and the process characteristics of the elongated structures, the processing range of the mechanical arm and other factors, the uniformity of a coating cannot be generally ensured through the multi-coordinate mechanical arm to carry out automatic spraying. Taking the net rack connecting rod as an example, the net rack connecting rod usually comprises a tubular main body and connectors used for connecting node balls at two ends of the tubular main body, and the finished product anticorrosion painting process of the net rack connecting rod in the manufacturing process needs to be repeatedly sprayed and dried for multiple times to form a multilayer anticorrosion layer so as to ensure the overall quality of the product, so that the spraying quality is ensured and the resource allocation is reduced on the premise of repeated spraying for multiple times, which is a difficult problem in the manufacturing process of the net rack connecting rod at present. In addition, the finished product anticorrosion painting process usually cannot contact the painting surface of the workpiece, which further increases the difficulty of automatically painting the workpiece with a slender structure.
Disclosure of Invention
Problem to above-mentioned prior art exists, the utility model provides a long and thin structure work piece automatic spraying unit can guarantee the homogeneity of coating under the prerequisite of realizing intelligent spraying operation to long and thin structure work piece, is applicable to the spraying process of long and thin structure work piece, the spraying process of specially adapted rack connecting rod.
In order to achieve the purpose, the automatic spraying unit for the workpieces with the slender structures is arranged in a working procedure working area of a conveying line, and comprises a box-shaped cover, a paint waste gas recovery device, a spraying device and a spraying electric control device;
the box-type cover with a closed inner cavity is spanned and erected at the butt joint position of two adjacent sections of conveying sections of the conveying line which are in butt joint end to end, the length dimension of the box-type cover along the front and back direction is smaller than that of the workpiece with the slender structure, and a spraying input port and a spraying output port are arranged at the position of the box-type cover corresponding to the conveying line; the butt joint position of two adjacent sections of conveying sections of the conveying line is also provided with a transition carrying wheel matched with the size of the bottom of the accompanying carrying frame;
the coating waste gas recovery device comprising a negative pressure exhaust mechanism is communicated and connected with the inner cavity of the box-shaped cover through an exhaust pipeline;
the spraying device is arranged in the box-shaped cover and comprises a spraying medium input mechanism, a nozzle supporting frame and a plurality of spraying nozzles arranged on the nozzle supporting frame; the nozzle support frame of the circular structure is vertically and fixedly arranged in a neutral position between two adjacent sections of conveying sections of the conveying line, and the nozzle support frame and the long and thin structural workpiece are concentrically arranged along a geometric central axis in the front-back direction; the spraying nozzles are symmetrically arranged relative to the center of the circular ring of the nozzle support frame, the spraying directions of the spraying nozzles are opposite to the center of the circular ring of the nozzle support frame, and the spraying nozzles are connected with a spraying medium input mechanism through pipelines;
the spraying electric control device comprises a spraying controller and a spraying control loop, wherein the spraying controller is respectively and electrically connected with the negative pressure exhaust mechanism of the coating waste gas recovery device and the spraying medium input mechanism of the spraying device.
As a further improvement of the utility model, the nozzle support frame with a circular ring structure is positioned at the rear part of the transition carrying wheel, and the spraying nozzles are arranged at the rear part of the nozzle support frame, the nozzle support frame with the circular ring structure is a slip ring structure comprising an inner ring and an outer ring which are connected in a sealed rolling way, the inner ring is internally provided with an annular cavity arranged along the circumferential direction of the inner ring, the outer ring is provided with a spraying medium input channel communicated with the annular cavity of the inner ring, the outer ring is vertically and fixedly arranged in a neutral position between two adjacent conveying sections of the conveying line, a plurality of spraying nozzles are arranged on the inner, and the spraying nozzles are communicated with the annular cavity of the inner ring in a sealing way, the spraying nozzles are connected with a spraying medium input mechanism through the annular cavity of the inner ring and the spraying medium input channel of the outer ring, an inner ring rotary driving mechanism is also arranged between the inner ring and the outer ring, and the inner ring rotary driving mechanism is electrically connected with a spraying controller of the spraying electric control device.
As a further improvement of the utility model, the transition bearing wheel sets up to two for the bottom size bilateral symmetry of retinue bearing frame, and two transition bearing wheels's geometric symmetry central line downwardly extending and with the crossing position of ring shaped structure's nozzle support frame are equipped with a vertical spraying nozzle that upwards sprays.
As the utility model discloses the transition holds in the palm carries an embodiment of wheel setting mode, and the transition holds in the palm carries a wheel roll cooperation location to install on the butt joint position of two sections adjacent transport sections of transfer chain.
As the utility model discloses another kind of embodiment of transition support year wheel setting mode, transition support year wheel is installed on the support chassis of transfer chain conveying section through the swing span that has swing actuating mechanism or the expansion bracket that has flexible actuating mechanism, and swing actuating mechanism or flexible actuating mechanism are connected with spraying electrically controlled device's spraying controller electricity.
As the utility model discloses a further improvement scheme, big-end-up's domes or toper structure are set to at the top of box cover, and exhaust duct sets up at domes or toper structure's top, and the bottom of box cover still is equipped with waste liquid recovery groove.
As an embodiment of the present invention, a plurality of spraying nozzles are located in the same vertical plane to form a nozzle group, and the nozzle group is set to be a plurality of groups along the front-back direction of the nozzle support frame, and each nozzle group is connected to different spraying medium input mechanisms.
As the utility model discloses a further improvement scheme, equally divide on the different spraying medium input mechanism and do not be equipped with cleaner input electric control valve, cleaner input electric control valve passes through the pipeline to be connected with the cleaner supply source, and spraying electrically controlled device still includes the nozzle and washs the return circuit, and the spraying controller is connected with cleaner input electric control valve electricity respectively.
As another embodiment of the utility model, be equipped with cleaner input electric control valve and a plurality of spraying medium input valve on the spraying medium input mechanism, cleaner input electric control valve passes through the pipeline and is connected with the cleaner supply source, and a plurality of spraying medium input valve are connected with the spraying medium supply source of difference through the pipeline respectively, and spraying electrically controlled device still includes the nozzle cleaning return circuit, and the spraying controller is connected with cleaner input electric control valve and a plurality of spraying medium input valve electricity respectively.
As a further improvement of the utility model, at least six spraying nozzles are located the same vertical plane and form the nozzle group.
Compared with the prior art, the automatic spraying unit for the slender structure workpieces is arranged at the butt joint position of two adjacent conveying sections of the conveying line, and the length dimension of the box-type cover along the front-back direction is far smaller than that of the slender structure workpieces, because the butt joint position of the two adjacent conveying sections of the conveying line is provided with the transition carrying wheel matched with the bottom dimension of the following carrying frame, and because the butt joint position of the two adjacent conveying sections of the conveying line is vertically and fixedly provided with the circular ring-shaped structure nozzle supporting frame concentric with the geometric central axis of the slender structure workpieces along the front-back direction, and the plurality of spraying nozzles are centrally and symmetrically arranged on the nozzle supporting frame, the slender structure workpieces are simultaneously sprayed in a relay mode in the spraying working process, namely, the following carrying frame positioned at the front end of the slender structure workpieces is separated from the rear conveying section when being conveyed to the butt joint position of the two adjacent conveying sections of the conveying line, And the carrier belt of the front-section conveying section continuously carries out relay conveying on the following carrier frame positioned at the front end of the slender structure workpiece under the supporting and carrying effects of the transition carrier wheel and the pushing effects of the following carrier frame positioned at the rear end of the net rack connecting rod workpiece, when the following carrier frame positioned at the front end of the slender structure workpiece passes through the nozzle support frame and reaches a set coordinate position, the spraying control loop is started to spray the slender structure workpiece, when the following carrier frame positioned at the rear end of the slender structure workpiece reaches the set coordinate position behind the nozzle support frame, the spraying control loop is closed and the spraying on the slender structure workpiece is stopped, the box-shaped cover can only cover the local range of the slender structure workpiece, the problem that the traditional integral spraying room occupies large space is solved, and meanwhile, the uniformity of a coating can be ensured on the premise of realizing intelligent spraying operation for the slender structure workpiece, the spraying device is suitable for spraying processes of workpieces with long and thin structures, and is particularly suitable for spraying processes of net rack connecting rods.
Drawings
FIG. 1 is a top layout view of an automatic spraying production line for workpieces with elongated structures in a series connection manner;
FIG. 2 is a top layout view of an automatic spraying production line for workpieces with slender structures in a front-back symmetrical connection mode;
FIG. 3 is a schematic three-dimensional structure diagram of a workpiece grabbing and stacking device of an automatic spraying production line for workpieces with slender structures;
fig. 4 is a schematic three-dimensional structure of the present invention;
FIG. 5 is a schematic view of the three-dimensional structure of the left rear viewing angle after the box-shaped cover and the coating waste gas recovery device are removed;
FIG. 6 is a schematic illustration of the construction of the pallet at the forward end of the elongated structural workpiece prior to its passage through the nozzle support frame;
FIG. 7 is a sectional view A-A of FIG. 6;
FIG. 8 is a schematic view of the construction of a pallet at the forward end of an elongated structural workpiece as it passes through a nozzle support frame;
fig. 9 is a schematic view of the structure of the trailing carriage at the leading end of the elongated structural workpiece after it has passed through the nozzle support frame.
In the figure: 1. the device comprises a digital conveying unit, 11, a conveying line, 12, a grabbing and stacking mechanical arm, 13, a grabbing and stacking mechanical arm, 14, a following carrying frame, 15, a transition carrying wheel, 2, an automatic spraying unit, 21, a box-shaped cover, 22, a coating waste gas recovery device, 23, a spraying device, 231, a nozzle supporting frame, 232, a spraying nozzle, 3, an automatic drying unit, 31, a drying bin, 4 and a workpiece with a long and thin structure.
Detailed Description
The present invention will be further explained with reference to the drawings (hereinafter, the conveying direction of the workpiece 4 having an elongated structure is described as the front).
As shown in fig. 1 and 2, the automatic spraying production line for the workpieces with the slender structures comprises a digital conveying unit 1, an automatic spraying unit 2, an automatic drying unit 3 and a centralized electric control unit.
The digital conveying unit 1 comprises a conveying line 11, a workpiece grabbing and stacking device, a following carrier frame 14 and a conveying electric control device;
as shown in fig. 3, the pallet 14 is arranged in pairs, the pallet 14 is provided with a workpiece positioning mechanism, the beam-shaped workpiece and the workpiece positioning mechanism can be a positioning and clamping structure or a matched positioning pin hole structure, the rod-shaped workpiece and the workpiece positioning mechanism can be a positioning and tensioning locking structure or a bolt connection structure, and two ends of the elongated workpiece 4 are respectively arranged on the pallet 14 arranged in pairs through workpiece positioning mechanisms;
the conveying line 11 arranged in the linear conveying mode is of a multi-section structure, each conveying section comprises a conveying driving mechanism and a conveying belt, the conveying length of each conveying section is larger than the length size of the workpiece 4 with the slender structure, the conveying line 11 at least comprises a grabbing stacking area and a working procedure working area, a supporting and positioning component for positioning the accompanying supporting frame 14 is arranged on the conveying belt in the front-back direction of the conveying belt, the supporting and positioning component can be a positioning guide plate structure which is erected above the conveying belt in a bilateral symmetry mode and is arranged in the front-back direction of the conveying line 11, a positioning protruding structure fixedly arranged on the conveying belt, or other positioning structures such as a positioning groove structure fixedly arranged on the conveying belt;
the workpiece grabbing and stacking device is arranged in a grabbing and stacking area of the conveying line 11 and comprises a grabbing and stacking mechanical arm 12 and a grabbing and stacking mechanical arm 13 arranged on the tail section of the grabbing and stacking mechanical arm 12; the grabbing and stacking mechanical arm 12 at least comprises an X coordinate driving mechanism along the front-back direction, a Y coordinate driving mechanism along the left-right direction and a Z coordinate driving mechanism along the vertical direction, and the grabbing and stacking mechanical arm 12 can adopt a joint mechanical arm structure arranged near the conveying lines 11 or a portal mechanical arm structure spanned on a plurality of conveying lines 11; the grabbing and stacking manipulator 13 is provided with a grabbing and stacking mechanism for grabbing the traveling carrying frame 14, the iron traveling carrying frame 14 and the grabbing and stacking mechanism can adopt an electromagnetic chuck structure, and the grabbing and stacking mechanism can also adopt other structures such as a positioning and clamping structure;
the conveying electric control device comprises a conveying controller, a conveying control loop and a workpiece grabbing and stacking loop, wherein the conveying controller is electrically connected with a conveying driving mechanism, a grabbing and stacking mechanical arm 12 and a grabbing and stacking mechanical arm 13 of the conveying line 1 respectively.
The automatic spraying unit 2 is arranged in a working procedure working area of the conveying line 11, and the automatic spraying unit 2 comprises a box-shaped cover 21, a coating waste gas recovery device 22, a spraying device 23 and a spraying electric control device;
as shown in fig. 4, a box-shaped cover 21 with a closed inner cavity is straddled and installed at the butt joint position of two adjacent conveying sections of the conveying line 11 which are in butt joint end to end, the length dimension of the box-shaped cover 21 in the front-back direction is far smaller than that of the workpiece 4 with the slender structure, and a spraying input port and a spraying output port are arranged at the position of the box-shaped cover 21 corresponding to the conveying line 11; as shown in fig. 6 and 7, a transition carrier wheel 15 matched with the size of the bottom of the accompanying carrier 14 is further arranged at the butt joint position of two adjacent conveying sections of the conveying line 11;
the coating waste gas recovery device 22 comprising a negative pressure exhaust mechanism is communicated and connected with the inner cavity of the box-shaped cover 21 through an exhaust pipeline;
as shown in fig. 5, the spraying device 23 is disposed inside the box-shaped cover 21, and includes a spraying medium feeding mechanism, a nozzle support frame 231, and a plurality of spraying nozzles 232 mounted on the nozzle support frame 231; the nozzle support frame 231 of the circular ring structure is vertically and fixedly arranged in a neutral position between two adjacent sections of the conveying line 11, and the nozzle support frame 231 and the elongated structural workpiece 4 are concentrically arranged along a geometrical central axis in the front-back direction; the plurality of spraying nozzles 232 are symmetrically arranged relative to the center of the circular ring of the nozzle support frame 231, the spraying direction of the spraying nozzles 232 is opposite to the center of the circular ring of the nozzle support frame 231, and the spraying nozzles 232 are connected with a spraying medium input mechanism through pipelines;
the spraying electric control device comprises a spraying controller and a spraying control loop, wherein the spraying controller is respectively and electrically connected with the negative pressure exhaust mechanism of the coating waste gas recovery device 22 and the spraying medium input mechanism of the spraying device 23.
The centralized electric control unit comprises a central controller, a digital conveying unit control loop, an automatic spraying unit control loop and an automatic drying unit control loop, wherein the central controller is respectively and electrically connected with the conveying controller of the digital conveying unit 1, the spraying controller of the automatic spraying unit 2 and the drying controller of the automatic drying unit 3.
Taking a net rack connecting rod workpiece as an example of the long and thin structure workpiece 4, under the condition of enough space of a spraying workshop, as shown in fig. 1, an automatic spraying production line of the long and thin structure workpiece can adopt a series connection mode, namely a conveying line 11 penetrates through the whole production line along the front and back directions, workpiece grabbing and stacking devices are arranged at the front end and the back end of the conveying line 11, an automatic spraying unit 2 and a drying bin 31 are sequentially arranged into a spraying and drying process group from back to front, the spraying and drying process group is arranged into a plurality of groups from back to front along the conveying line 11, the net rack connecting rod workpiece is orderly sprayed and dried for a plurality of times after being grabbed to be on line by the workpiece grabbing and stacking device at the back end of the conveying line 11, and a final finished product is grabbed to be; aiming at the condition that the space of a spraying workshop is limited, as shown in fig. 2, the automatic spraying production line of workpieces with slender structures can adopt the mode that the automatic drying units 3 are arranged in front of and behind the automatic spraying units 2, and workpiece grabbing and stacking devices are arranged between the automatic spraying units 2 and the automatic drying units 3, and after the net rack connecting rod workpieces are on-line, spraying and drying are carried out for multiple times through reasonably setting the spraying and drying sequence.
The following automatic spraying production line for the workpieces with the slender structures is characterized in that the automatic drying units 3 are arranged in front of and behind the automatic spraying units 2, and workpiece grabbing and stacking devices are arranged between the automatic spraying units 2 and the automatic drying units 3, wherein the working process of the automatic spraying production line for the workpieces with the slender structures is as follows:
a) workpiece threading: the net rack connecting rod workpieces which are transferred from the previous shot blasting process and subjected to shot blasting treatment are sent to a set position near a workpiece grabbing and stacking device behind the automatic spraying unit 2, then operators respectively install the following carrying frames 14 at two ends of the net rack connecting rod workpieces, then the central controller sends an instruction to control the conveying controller to start a workpiece grabbing and stacking loop, the grabbing and stacking mechanical arm 12 moves in coordinates to enable the grabbing and stacking mechanical arm 13 to move to be right above the following carrying frames 14, the grabbing and stacking mechanical arm 13 vertically moves downwards in coordinates for a set distance and grabs the following carrying frames 14 at two ends of the net rack connecting rod workpieces, after grabbing, the conveying controller controls the grabbing and stacking mechanical arm 12 to move in coordinates to be right above a conveying section of the conveying line 11 where the automatic spraying unit 2 is located, then the grabbing and stacking mechanical arm 13 vertically moves downwards in coordinates for a set distance, The following carrying frames 14 at the two ends of the net rack connecting rod workpiece are stacked on the carrying positioning part, and the net rack connecting rod workpiece supported by the following carrying frames 14, namely the stable coordinate, is positioned on the conveying section of the conveying line 11 to complete the on-line work of the first workpiece;
b) workpiece spraying: the central controller sends out a command to control the conveying controller to start the conveying control loop, as shown in fig. 6, the conveying controller controls the conveying driving mechanism of the conveying line 11 where the automatic spraying unit 2 is located to synchronously act to make the conveying belt carry the rack connecting rod workpiece supported by the rack connecting rod workpiece to move forwards along the coordinate, as shown in fig. 8, when the rack connecting rod workpiece 14 located at the front end of the rack connecting rod workpiece is conveyed to the butt joint position of the two adjacent conveying sections of the conveying line 11, the conveying belt is separated from the rear conveying section and moves forwards to the front conveying section under the supporting action of the transition supporting wheels 15 and the pushing action of the rack connecting rod workpiece 14 located at the rear end of the rack connecting rod workpiece, as shown in fig. 9, the conveying belt of the front conveying section continues to convey the rack supporting frame 14 located at the front end of the rack connecting rod workpiece, and the rack supporting frame 14 located at the front end of the rack connecting rod workpiece passes through the nozzle supporting frame 231, When the spraying device reaches a set coordinate position, the central controller sends an instruction to control the spraying controller to start a spraying control loop, the spraying controller controls a negative pressure exhaust mechanism of the coating waste gas recovery device 22 to start negative pressure exhaust on the inner cavity of the box-shaped cover 21, and controls a spraying medium input mechanism of the spraying device 23 to start so that a spraying medium is continuously sprayed out through the spraying nozzle 232 to spray the net rack connecting rod workpiece; when the pallet 14 at the rear end of the rack connecting rod workpiece is conveyed to the butt joint position of two adjacent conveying sections of the conveying line 11, the pallet is separated from the rear conveying section and moves forwards to the front conveying section under the supporting action of the transitional supporting wheel 15 and the pulling action of the pallet 14 at the front end of the rack connecting rod workpiece, the conveyer belt of the front conveying section continues to carry out relay conveying on the pallet 14 at the rear end of the rack connecting rod workpiece, when the pallet 14 at the rear end of the rack link workpiece reaches the set coordinate position behind the nozzle support 231, the spraying controller controls the spraying medium input mechanism of the spraying device 23 to be closed, the spraying of the net rack connecting rod workpiece is stopped, and the traveling carrier 14 positioned at the rear end of the net rack connecting rod workpiece passes through the nozzle support frame 231 and is conveyed to a set position on the front section conveying section, so that the first-time spraying of the workpiece is completed; meanwhile, the central controller controls the second workpiece to be on-line;
c) drying the workpiece: the central controller sends an instruction to control the conveying controller to enable the workpiece grabbing and stacking device in front of the automatic spraying unit 2 to act, the grabbing and stacking mechanical arm 12 moves in a coordinate mode to enable the grabbing and stacking mechanical arm 13 to grab a traveling carrying frame 14 of the net rack connecting rod workpiece which is sprayed for the first time, the net rack connecting rod workpiece which is sprayed for the first time is integrally stacked on a conveying section of the conveying line 11 where the drying bin 31 is located, then the conveying controller controls the conveying section of the conveying line 11 where the drying bin 31 is located to act to convey the net rack connecting rod workpiece which is sprayed for the first time to a set position inside the drying bin 31, then the central controller sends an instruction to control the drying controller to start a drying control loop, and the heating temperature control mechanism starts to dry the net rack connecting rod workpiece which is sprayed for the first time; by analogy, the subsequent net rack connecting rod workpieces which are sprayed for the first time are sent into different drying bins 31 of the automatic drying unit 3 one by one to be dried, and the online work of the workpieces is stopped;
d) spraying the workpiece for multiple times: after the first rack connecting rod workpiece entering the drying bin 31 is dried for a set time, the first rack connecting rod workpiece is conveyed out of the drying bin 31 by the conveying section of the conveying line 11 where the drying bin 31 is located, then the central controller sends out instructions to control the conveying controller to enable the workpiece grabbing and stacking device positioned in front of the automatic spraying unit 2 to act, the grabbing and stacking mechanical arm 12 moves in coordinates to enable the grabbing and stacking mechanical arm 13 to grab the following carrying frame 14 of the net rack connecting rod workpiece which is dried for the first time and integrally stack the net rack connecting rod workpiece which is dried for the first time on the front section conveying section of the conveying line 11 where the automatic spraying unit 2 is positioned, then the conveying controller controls the conveying driving mechanism to synchronously act in a reverse direction, as described above, carrying out secondary spraying on the net rack connecting rod workpieces which are dried for the first time, and repeating the steps, wherein the net rack connecting rod workpieces which are dried for the second time are sequentially sent into different drying bins 31 behind the automatic spraying unit 2 one by one to be dried for the second time;
e) off-line of the workpiece: the net rack connecting rod workpiece which is dried in the final time is conveyed to leave the drying bin 31 by the conveying section of the conveying line 11 where the drying bin 31 is located, and then is grabbed by the workpiece grabbing and stacking device and stacked at a set position, so that the whole spraying process is completed;
by parity of reasoning, the net rack connecting rod workpieces subjected to shot blasting are sprayed one by one and sent into the drying bin 31 for drying, and finished products can be output after spraying and drying for multiple times.
As described above, in the automatic spraying production line for the rack connecting rod workpiece, accurate coordinate movement of the rack connecting rod workpiece is realized by a mode that the grabbing and stacking manipulator 13 grabs the accompanying carrying rack 14, accurate coordinate movement of the rack connecting rod workpiece is realized by a mode that the carrying and positioning component on the conveying line 11 positions the accompanying carrying rack 14, and the workpiece is transferred between processes by a mode that the grabbing and stacking manipulator 13 translates the rack connecting rod workpiece to the adjacent conveying line 11. Aiming at beam-shaped workpieces such as steel section beams and the like, the structural forms of the workpiece positioning mechanism on the accompanying carrying frame 14 and the grabbing and stacking mechanism of the grabbing and stacking manipulator 13 are only required to be changed.
In order to prevent in the narrow butt joint position of two sections adjacent conveying sections that the transition carries wheel 15 to cause to block to interfere the spraying direction of spraying nozzle 232, as the utility model discloses a further improvement scheme, as shown in fig. 7, the transition carries wheel 15 to set up to two for the bottom size bilateral symmetry of retinue support carrier 14, and the geometric symmetry central line downwardly extending of two transition support wheels 15 and the crossing position of nozzle support frame 231 with annular structure are equipped with a vertical spraying nozzle 232 that upwards sprays, and this spraying nozzle 232 accessible is the interval space between two transition support wheels 15 and is sprayed promptly.
As the utility model discloses the transition holds in the palm carries an embodiment that wheel 15 set up the mode, and the transition holds in the palm carries a wheel 15 roll cooperation location and installs on the butt joint position of two sections adjacent transport sections of transfer chain 11.
As the utility model discloses another kind of embodiment of transition carrier wheel 15 mode, transition carrier wheel 15 is installed on the support chassis of transfer chain 11 transport section through the swing span that has swing actuating mechanism or the expansion bracket that has flexible actuating mechanism, and swing actuating mechanism or flexible actuating mechanism are connected with spraying electrically controlled device's spraying controller electricity. Before the accompanying carrier 14 is conveyed to the butt joint position of the two adjacent conveying sections of the conveying line 11, the spraying controller controls the swinging frame to swing in or the telescopic frame to extend out to enable the transition carrier wheel 15 to be positioned at the butt joint position of the two adjacent conveying sections of the conveying line 11, and after relay conveying is completed, the spraying controller controls the swinging frame to swing out or the telescopic frame to retract to enable the transition carrier wheel 15 to be reset to a position which does not interfere with the spraying direction of the spraying nozzle 232.
In order to increase the spraying uniformity, as a further improvement of the present invention, the nozzle support frame 231 of the circular ring structure is located behind the transition carrying wheel 15, and the spraying nozzle 232 is installed behind the nozzle support frame 231, the nozzle support frame 231 of the circular ring structure is a sliding ring structure including an inner ring and an outer ring which are connected in a sealed rolling manner, an annular cavity is arranged inside the inner ring along the circumferential direction of the inner ring, a spraying medium input channel communicated with the annular cavity of the inner ring is arranged on the outer ring, the outer ring is vertically and fixedly arranged in a neutral position between two adjacent conveying sections of the conveying line 11, a plurality of spraying nozzles 232 are installed on the inner ring, and the plurality of spraying nozzles 232 are all connected in a sealed communication manner with the annular cavity of the inner ring, the spraying nozzles 232 pass through the annular cavity of the inner ring, the spraying medium input channel of the outer ring is connected with the spraying medium input, the inner ring rotation driving mechanism can be a driving gear and an inner gear ring structure which are arranged in a matched mode, and can also be a driving gear and an outer gear ring structure which are arranged in a matched mode, and the inner ring rotation driving mechanism is electrically connected with a spraying controller of the spraying electric control device. When the spraying controller controls the spraying medium input mechanism to start for spraying, the spraying medium continuously sprays out through the spraying nozzle 232 after passing through the spraying medium input channel of the outer ring and the annular cavity of the inner ring, and meanwhile, the spraying controller controls the inner ring rotation driving mechanism to act to enable the inner ring to rotate relative to the outer ring, so that the spraying nozzle 232 can spray and rotate along the central axis of the workpiece 4 with the slender structure in the circumferential direction, and the spraying uniformity is guaranteed.
In order to further realize the recovery of coating, as the utility model discloses a further improvement scheme, box cover 21's top sets to big end down's domes or toper structure, and exhaust duct sets up at domes or toper structure's top, and box cover 21's bottom still is equipped with the waste liquid recovery groove, and waste liquid recovery groove accessible pipeline is connected with the waste liquid recovery pond. Part of the mist spraying remainder which is diffused in the inner cavity of the box-shaped cover 21 in the spraying process is recovered by the coating waste gas recovery device 22 through the exhaust pipeline, and the other part of the spraying remainder which is attached to the inner wall of the box-shaped cover 21 flows down along the inner wall of the box-shaped cover 21 after being gathered and can be recovered by the waste liquid recovery groove.
To the technological needs of the different colours of needs spraying, as the utility model discloses an embodiment, a plurality of spraying nozzle 232 lie in same vertical plane and form nozzle group, and nozzle group sets up to the multiunit along the fore-and-aft direction of nozzle support frame 231, and different spraying medium input mechanism is connected to each nozzle group. The spraying controller can realize the process requirements of spraying different colors by controlling the work of different spraying medium input mechanisms.
To the technological needs that need the different colours of spraying, as the utility model discloses a another kind of embodiment is equipped with cleaner input electric control valve and a plurality of spraying medium input valve on the spraying medium input mechanism, and cleaner input electric control valve passes through the pipeline and is connected with the cleaner supply source, and a plurality of spraying medium input valve are connected with the spraying medium supply source of difference through the pipeline respectively, and spraying electrically controlled device still includes nozzle cleaning loop, and the spraying controller is connected with cleaner input electric control valve and different spraying medium input valve electricity respectively. Before different colors need to be sprayed, the spraying controller starts the nozzle cleaning loop firstly to enable the cleaning agent to enter the pipeline and be sprayed out through the spraying nozzle 232, and the pipeline and the spraying nozzle 232 are cleaned; during spraying operation, the spraying controller starts a spraying medium input valve corresponding to the color to be sprayed according to a spraying instruction input by the central controller, and further the process requirement of spraying different colors is met.
Claims (10)
1. An automatic spraying unit for a workpiece with a long and thin structure is characterized in that the automatic spraying unit (2) is arranged in a working procedure working area of a conveying line (11), and the automatic spraying unit (2) comprises a box-shaped cover (21), a coating waste gas recovery device (22), a spraying device (23) and a spraying electric control device; it is characterized in that the preparation method is characterized in that,
a box-shaped cover (21) with a closed inner cavity is spanned and erected at the butt joint position of two adjacent sections of conveying sections of the conveying line (11) which are in butt joint connection end to end, the length dimension of the box-shaped cover (21) along the front and rear direction is smaller than that of the long and thin structural workpiece (4), and a spraying input port and a spraying output port are arranged at the position of the box-shaped cover (21) corresponding to the conveying line (11); a transition carrier wheel (15) matched with the size of the bottom of the accompanying carrier frame (14) is further arranged at the butt joint position of the two adjacent conveying sections of the conveying line (11);
a coating waste gas recovery device (22) comprising a negative pressure exhaust mechanism is communicated and connected with the inner cavity of the box-shaped cover (21) through an exhaust pipeline;
the spraying device (23) is arranged in the box-shaped cover (21) and comprises a spraying medium input mechanism, a nozzle supporting frame (231) and a plurality of spraying nozzles (232) arranged on the nozzle supporting frame (231); the nozzle support frame (231) with a circular structure is vertically and fixedly arranged in a neutral position between two adjacent sections of the conveying line (11), and the nozzle support frame (231) and the elongated structural workpiece (4) are concentrically arranged along a geometric central axis in the front-back direction; the spraying nozzles (232) are symmetrically arranged relative to the center of the circular ring of the nozzle support frame (231), the spraying directions of the spraying nozzles (232) are opposite to the center of the circular ring of the nozzle support frame (231), and the spraying nozzles (232) are connected with a spraying medium input mechanism through pipelines;
the spraying electric control device comprises a spraying controller and a spraying control loop, wherein the spraying controller is respectively and electrically connected with the negative pressure exhaust mechanism of the coating waste gas recovery device (22) and the spraying medium input mechanism of the spraying device (23).
2. The automatic spraying unit for the slender structure workpieces as claimed in claim 1, wherein the nozzle support frame (231) of the circular ring structure is located behind the transition carrier wheel (15), the spraying nozzles (232) are installed behind the nozzle support frame (231), the nozzle support frame (231) of the circular ring structure is a slip ring structure comprising an inner ring and an outer ring which are connected in a sealed rolling manner, an annular cavity is formed in the inner ring along the circumferential direction of the inner ring, a spraying medium input channel communicated with the annular cavity of the inner ring is formed in the outer ring, the outer ring is vertically and fixedly arranged in a neutral position between two adjacent conveying sections of the conveying line (11), the plurality of spraying nozzles (232) are installed on the inner ring, the plurality of spraying nozzles (232) are all connected with the annular cavity of the inner ring in a sealed communication manner, and the spraying nozzles (232) are connected with the spraying medium input mechanism through the annular cavity of the inner ring and the spraying medium input, an inner ring rotary driving mechanism is also arranged between the inner ring and the outer ring and is electrically connected with a spraying controller of the spraying electric control device.
3. The automatic elongated structure workpiece spraying unit according to claim 1 or 2, characterized in that the transition carrier wheel (15) is arranged in two pieces in bilateral symmetry relative to the bottom dimension of the accompanying carrier (14), and a spraying nozzle (232) which sprays vertically upwards is arranged at the position where the geometric symmetry center line of the two transition carrier wheels (15) extends downwards and intersects with the nozzle support frame (231) of the circular structure.
4. The automatic elongated structural workpiece spraying unit according to claim 3, characterized in that the transition carrier wheel (15) is positioned in rolling fit in the butt joint position of two adjacent conveying sections of the conveying line (11).
5. The automatic painting unit of workpieces with elongated structures according to claim 3, characterized in that the transition carrier wheel (15) is mounted on the supporting chassis of the conveying section of the conveying line (11) through a swing frame with a swing driving mechanism or a telescopic frame with a telescopic driving mechanism, and the swing driving mechanism or the telescopic driving mechanism is electrically connected with the painting controller of the painting electric control device.
6. The automatic spraying unit for the workpieces with the slender structures as claimed in claim 1 or 2, wherein the top of the box-shaped cover (21) is arranged into an arch structure or a conical structure with a small top and a big bottom, the exhaust pipeline is arranged at the top of the arch structure or the conical structure, and the bottom of the box-shaped cover (21) is further provided with a waste liquid recovery tank.
7. The automatic elongated structural workpiece spraying unit according to claim 1 or 2, wherein a plurality of spraying nozzles (232) are located in the same vertical plane to form nozzle groups, the nozzle groups are arranged in multiple groups along the front-back direction of the nozzle support frame, and each nozzle group is connected with different spraying medium input mechanisms.
8. The automatic spraying unit for the workpiece with the slender structure according to claim 7, wherein different spraying medium input mechanisms are respectively provided with a cleaning agent input electric control valve, the cleaning agent input electric control valves are connected with a cleaning agent supply source through pipelines, the spraying electric control device further comprises a nozzle cleaning loop, and the spraying controller is respectively electrically connected with the cleaning agent input electric control valves.
9. The automatic spraying unit of the workpiece with the long and thin structure as claimed in claim 1 or 2, wherein the spraying medium input mechanism is provided with a cleaning agent input electric control valve and a plurality of spraying medium input valves, the cleaning agent input electric control valve is connected with a cleaning agent supply source through a pipeline, the plurality of spraying medium input valves are respectively connected with different spraying medium supply sources through pipelines, the spraying electric control device further comprises a nozzle cleaning loop, and the spraying controller is respectively electrically connected with the cleaning agent input electric control valve and the plurality of spraying medium input valves.
10. The elongated structural workpiece automatic spray unit according to claim 1 or 2, characterized in that at least six spray nozzles (232) are located in the same vertical plane forming a nozzle group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920801228.9U CN210700739U (en) | 2019-05-30 | 2019-05-30 | Automatic spraying unit for workpieces with long and thin structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920801228.9U CN210700739U (en) | 2019-05-30 | 2019-05-30 | Automatic spraying unit for workpieces with long and thin structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210700739U true CN210700739U (en) | 2020-06-09 |
Family
ID=70964410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920801228.9U Active CN210700739U (en) | 2019-05-30 | 2019-05-30 | Automatic spraying unit for workpieces with long and thin structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210700739U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113786948A (en) * | 2021-10-18 | 2021-12-14 | 安徽信息工程学院 | Spraying equipment for extra-high voltage equalizing cover |
-
2019
- 2019-05-30 CN CN201920801228.9U patent/CN210700739U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113786948A (en) * | 2021-10-18 | 2021-12-14 | 安徽信息工程学院 | Spraying equipment for extra-high voltage equalizing cover |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110314792B (en) | Spraying method of automatic spraying unit for workpiece with long and thin structure | |
| CN110369206B (en) | Automatic spraying and drying production system for net rack connecting rod | |
| CN104841668B (en) | A kind of intelligent automated cleaning subelement and its application method based on number bus | |
| CN210700806U (en) | Automatic spraying production line for workpieces with long and thin structures | |
| CN105750128B (en) | Automatic loading/unloading oil-injection machine | |
| CN206642923U (en) | A kind of more shower nozzle automatic numerical control flush coaters | |
| US7900767B2 (en) | Modular manufacturing chain including a vertical lift device and method of operation thereof | |
| CN105252526B (en) | Robot painting's production line | |
| CN102728508A (en) | Robot coating system | |
| US7815036B2 (en) | Modular manufacturing chain including a position tracking device and method of operation therefor | |
| CN110237974B (en) | Automatic spraying production line for workpieces with slender structures | |
| CN113856958B (en) | Automatic spraying production line and spraying process for titanium alloy thermal forming protective coating | |
| CN210700739U (en) | Automatic spraying unit for workpieces with long and thin structures | |
| CN112742643A (en) | Spraying workstation suitable for small-batch multiple varieties | |
| CN110237973B (en) | Application method of automatic spraying production line for workpieces with slender structures | |
| CN202277925U (en) | Spraying treatment line system for automotive lampshade decoration frames | |
| US8196731B2 (en) | Modular manufacturing chain including a reverse transport direction and method of operation therefor | |
| CN210935595U (en) | Automatic spraying and drying production system for net rack connecting rod | |
| CN110252547B (en) | Automatic spraying unit for slender structure workpiece | |
| CN202638671U (en) | Robot coating system | |
| CN107744903A (en) | Dacroment application, drying integrated device | |
| US9534311B2 (en) | Robotic pretreatment and primer electrodeposition system | |
| CN102327836A (en) | Spraying treatment line system for decorative frame of lamp house of automobile | |
| CN207914003U (en) | A kind of stainless steel kitchenware automation paint equipment | |
| CN109868494B (en) | Full-automatic aluminum piston hard anodic oxidation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |