CN214262426U - Coating production line on-line detection recognition device based on machine vision - Google Patents

Abstract

The utility model provides a coating production line online detection and identification device based on machine vision, which comprises a main conveying roller bed and an image identification mechanism; the image recognition mechanism comprises a control box body, a feeding side position sensor, a recognition mounting bracket and an image recognition camera; the left side and the right side of the feeding side of the main conveying roller bed are respectively provided with a central pushing mechanism for pushing the coating workpieces transported on the left side and the right side of the feeding side of the main conveying roller bed to the middle. The coating production line on-line detection and recognition device based on machine vision utilizes the image recognition mechanism to carry out image recognition on the coating workpieces transported on the main conveying roller bed, and determines the next procedure to be processed for each coating workpiece, so that the subsequent coating workpieces are conveniently transported to corresponding process treatment equipment, the automatic procedure recognition of the coating process is realized, and the coating efficiency is improved.

Description

Coating production line on-line detection recognition device based on machine vision

Technical Field

The utility model relates to a coating line monitoring devices, especially a coating line on-line measuring recognition device based on machine vision.

Background

The existing coating production line mainly comprises a plurality of working procedures such as cleaning, drying, paint spraying, paint baking and the like, the flow is long, when the automatic production is carried out, part of working procedures on the coating production line are kept idle waiting when no workpiece exists, energy is wasted, and the loss of coating equipment is increased. When different products are coated, the path planning is needed to be carried out again according to the shape of the workpiece product and the spraying requirement, and the corresponding coating program is replaced, so that the coating efficiency is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the coating production line online detection and identification device based on machine vision can identify a coating workpiece, so that a subsequent coating process is determined, the coating process is convenient to transfer to subsequent corresponding coating equipment, and the coating efficiency is improved.

In order to realize the aim of the utility model, the utility model provides an online detection and identification device of a coating production line based on machine vision, which comprises a main conveying roller bed and an image identification mechanism;

the image recognition mechanism comprises a control box body, a feeding side position sensor, a recognition mounting bracket and an image recognition camera; the control box body is arranged above the feeding side of the main conveying roller bed through the identification mounting bracket; a controller and a memory are arranged in the control box body; the image recognition camera is arranged at the center of the lower side surface of the control box body; the feeding side position sensor is fixedly arranged in the middle of the edge of the feeding side of the control box body and used for detecting the position of a coating workpiece on the feeding side;

a blanking side position sensor is arranged on the blanking side of the main conveying roller bed and used for detecting the position of a coating workpiece on the blanking side; a central pushing mechanism is arranged on the left side and the right side of the feeding side of the main conveying roller bed and used for pushing the coating workpieces conveyed on the left side and the right side of the feeding side of the main conveying roller bed to the middle; the controller is respectively and electrically connected with the memory, the image recognition camera, the feeding side position sensor and the discharging side position sensor.

Further, the main conveying roller bed comprises two strip-shaped side plates, a roller bed bottom plate, a main conveying motor and two side strip-shaped baffle plates; two strip-shaped side plates are respectively arranged on the length edges of the left side and the right side of the roller bed bottom plate; each main conveying supporting roller is rotatably arranged between the two strip-shaped side plates and is arranged in parallel at equal intervals; the end part of one of the main conveying supporting rollers extends out of the strip-shaped side edge plate, and a main driving gear is fixedly arranged on the extending end part; the main conveying motor drives the main driving gear to rotate through the main driving chain; the end part of each main conveying supporting roller is also fixedly provided with a synchronous gear, and a synchronous chain is arranged on the synchronous gear of the adjacent main conveying supporting roller for synchronous transmission; supporting feet are arranged on the side edges of the bottom of the roller bed bottom plate; two side strip baffles are respectively arranged above the two strip side plates through each side adjusting frame.

Further, the side adjusting frame comprises a vertical supporting rod, a vertical adjusting bolt and a vertical adjusting seat; the vertical supporting rod is vertically arranged on the outer side surface of the side strip-shaped baffle through the side fixing seat; the vertical adjusting seat is fixedly arranged on the outer side surface of the strip-shaped side plate and is positioned below the side fixing seat, and a vertical adjusting hole is vertically arranged on the vertical adjusting seat; the vertical adjusting bolt is vertically and rotatably arranged on the vertical adjusting seat and extends into the vertical adjusting hole; the lower end of the vertical supporting rod is vertically inserted into the vertical adjusting hole, and the vertical adjusting bolt is screwed in the adjusting threaded hole at the lower end of the vertical supporting rod.

Further, the central pushing mechanism comprises pushing driving motors and transverse pushing units which are transversely arranged between the adjacent main conveying supporting rollers; the transverse pushing unit comprises a pushing conveying belt, two short shafts and two strip-shaped supporting side plates; the two strip-shaped supporting side plates are transversely and parallelly arranged, and an end supporting belt wheel is rotatably arranged between the two ends of the two strip-shaped supporting side plates; each belt supporting roller is rotationally arranged between the upper side edges of the two strip-shaped supporting side plates at intervals; the pushing and conveying belt is arranged on the two end supporting belt wheels in a surrounding manner, and each belt supporting roller is supported on the inner side surface of the pushing and conveying belt; two shaft holes are formed in the strip-shaped supporting side plate, and two short shafts are rotatably mounted on the two shaft holes respectively; two ends of the short shaft are respectively provided with a disc, and the two ends of the short shaft are positioned at the same eccentric positions of the inner side surfaces of the two discs; a supporting shaft head is arranged at the center of the outer side surfaces of the two disks; the supporting shaft head is rotatably arranged on the bottom plate of the roller bed through a shaft head seat; a belt driven belt wheel is arranged at the end part of a belt wheel rotating shaft of one end part supporting belt wheel, a belt driving belt wheel is arranged on a supporting shaft head close to the position of the belt driven belt wheel, and the belt driven belt wheel and the belt driving belt wheel are driven by a transmission belt;

the end parts of the supporting shaft heads at the front and rear corresponding positions of two adjacent transverse pushing units are installed in a butt joint mode, a synchronous gear is installed on each of the two supporting shaft heads on the front side of one of the transverse pushing units, and the two synchronous gears are synchronously driven through synchronous chains to enable each supporting shaft head to synchronously rotate; a pushing driven gear is mounted on one supporting shaft head of one transverse pushing unit, and a pushing driving gear is arranged at the end part of an output shaft of a pushing driving motor; the pushing driving gear drives the pushing driven gear to rotate through the pushing driving chain; after the supporting shaft heads synchronously rotate, the upper side edges of the pushing conveying belts of the transverse pushing units synchronously lift, are higher than the main conveying supporting roller when the upper side edges of the pushing conveying belts lift to a high position, and are lower than the main conveying supporting roller when the upper side edges of the pushing conveying belts drop to a low position; the upper side of the pushing conveying belt of each transverse pushing unit on the left side is conveyed from left to right, and the upper side of the pushing conveying belt of each transverse pushing unit on the right side is conveyed from right to left.

Furthermore, convex rings are arranged on the wheel surfaces of the end part supporting belt wheel and the belt supporting roller in a surrounding manner, and anti-skidding convex ribs are arranged on the outer side surfaces of the convex rings; and a groove matched with the convex ring is arranged on the inner side surface of the pushing and conveying belt.

Further, the middle thickness of the pushing conveying belt is larger than the edge thickness, the edge height of the pushing conveying belt is lower than the height of the main conveying supporting roller when the pushing conveying belt rises to a high position, the middle height of the pushing conveying belt is higher than the height of the main conveying supporting roller, and the middle height of the pushing conveying belt is lower than the height of the main conveying supporting roller when the pushing conveying belt falls to a low position.

Furthermore, a tensioning pulley is hung on the transmission belt, a belt tensioning tension spring is installed on the tensioning pulley, and the end part of the belt tensioning tension spring is installed on the strip-shaped supporting side plate in a hinged mode through a tensioning seat.

Further, a chain tensioning mechanism is arranged on the roller bed bottom plate; the chain tensioning mechanism comprises a tensioning gear, a tensioning swing rod, a chain tensioning pressure spring, a chain tensioning seat and a tensioning positioning bolt; a tensioning adjusting T-shaped groove is formed in the bottom plate of the roller bed, and tensioning positioning holes are formed in the bottom of the tensioning adjusting T-shaped groove at intervals; the lower side edge of the chain tensioning seat is embedded into a tensioning adjusting T-shaped groove in a sliding mode, a tensioning positioning bolt is arranged on the chain tensioning seat in a threaded screwing mode, and the end part of a screw rod of the tensioning positioning bolt extends into one tensioning positioning hole; the lower end of the tensioning swing rod is hinged to a roller bed bottom plate in a swinging mode, the tensioning gear is rotatably installed at the upper end of the tensioning swing rod and meshed with the pushing driving chain; a tensioning telescopic rod is arranged on the chain tensioning seat in a swinging and hinged mode, a tensioning telescopic sleeve is arranged in the middle of the tensioning swing rod in a swinging and hinged mode, and the end portion of the tensioning telescopic rod is inserted into the tensioning telescopic sleeve; the chain tensioning compression spring is sleeved on the tensioning telescopic rod and the tensioning telescopic sleeve, and the chain tensioning compression spring is elastically supported between the tensioning swing rod and the chain tensioning seat and used for pushing the tensioning gear to press the pushing driving chain.

Furthermore, the identification mounting bracket comprises two side height adjusting frames, and each side height adjusting frame consists of a sleeve mounting bottom plate, a height adjusting sleeve, a vertical adjusting support rod and a height adjusting nut; the height adjusting sleeve is vertically arranged on the sleeve mounting base plate, and a C-shaped adjusting plate is arranged at the pipe orifice at the upper end of the height adjusting sleeve; the lower end of the vertical adjusting stay bar vertically penetrates through the C-shaped adjusting plate and then is inserted into the upper end pipe orifice of the height adjusting sleeve; an adjusting external thread is arranged on the lower end rod wall of the vertical adjusting support rod, a height adjusting nut is screwed on the adjusting external thread, and the height adjusting nut is positioned between the upper side edge and the lower side edge of the C-shaped adjusting plate; the bottom of the control box body is provided with the top ends of the vertical adjusting support rods of the two side height adjusting frames.

The beneficial effects of the utility model reside in that: the image recognition mechanism is used for recognizing the images of the coating workpieces transported on the main conveying roller bed and determining the next process to be processed for each coating workpiece, so that the coating workpieces are conveniently transported to corresponding process equipment in the follow-up process, the automatic process recognition of the coating process is realized, and the coating efficiency is improved; the central pushing mechanism can be used for pushing the coating workpiece to the middle of the main conveying roller bed for transportation, so that the coating workpiece is ensured to be in the middle of an image collected by the image recognition camera, and the reliability of image recognition is enhanced; whether the coated workpiece reaches the image recognition camera or not can be monitored in real time by utilizing the feeding side position sensor, so that the image acquisition reliability of the image recognition camera is enhanced, and the single success rate of image recognition of the coated workpiece is improved; whether the coating workpiece reaches the position to be transported can be detected in real time by utilizing the blanking side position sensor, so that the subsequent transporting mechanism is quickly started to transport the workpiece, the long-term no-load operation of the subsequent transporting mechanism is avoided, and the energy consumption of the system is reduced.

Drawings

Fig. 1 is a schematic top view of the identification device of the present invention;

fig. 2 is a schematic view of the right side structure of the identification device of the present invention;

fig. 3 is a schematic top view of the central pushing mechanism of the present invention;

FIG. 4 is a schematic cross-sectional structure view of the installation position of the push conveyor belt of the present invention;

fig. 5 is a schematic side view of the central pushing mechanism of the present invention;

fig. 6 is a schematic diagram of the circuit structure of the present invention.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.

Example 1:

as shown in fig. 1-6, the utility model discloses a coating line on-line measuring recognition device based on machine vision includes: a main conveying roller bed and an image recognition mechanism;

the image recognition mechanism comprises a control box body 10, a feeding side position sensor 20, a recognition mounting bracket and an image recognition camera 12; the control box body 10 is arranged above the feeding side of the main conveying roller bed through an identification mounting bracket; a controller and a memory are installed in the control box body 10; the image recognition camera 12 is installed at the center of the lower side of the control cabinet 10; the feeding side position sensor 20 is fixedly arranged in the middle of the edge of the feeding side of the control box body 10 and is used for detecting the position of the coating workpiece 107 on the feeding side;

a blanking side position sensor 102 is arranged on the blanking side of the main conveying roller bed and used for detecting the position of a coating workpiece 107 on the blanking side; a central pushing mechanism is arranged on the left side and the right side of the feeding side of the main conveying roller bed and used for pushing the coating workpieces 107 transported on the left side and the right side of the feeding side of the main conveying roller bed to the middle; the controller is electrically connected to the memory, the image recognition camera 12, the feeding-side position sensor 20, and the discharging-side position sensor 102, respectively.

The image recognition mechanism is used for recognizing the images of the coating workpieces 107 transported on the main conveying roller bed, and the next procedure to be processed of each coating workpiece 107 is determined, so that the coating workpieces 107 are conveniently transferred to corresponding process equipment in the follow-up process, the automatic procedure recognition of the coating process is realized, and the coating efficiency is improved; the central pushing mechanism can push the painting workpiece 107 to the middle of the main conveying roller bed for transportation, so that the painting workpiece 107 is ensured to be in the middle of the image acquired by the image recognition camera 12, and the reliability of image recognition is enhanced; whether the painting workpiece 107 reaches the image recognition camera 12 or not can be monitored in real time by using the feeding side position sensor 20, so that the reliability of image acquisition of the image recognition camera 12 is enhanced, and the single success rate of image recognition of the painting workpiece 107 is improved; whether the coating workpiece 107 reaches the position to be transported can be detected in real time by using the blanking side position sensor 102, so that the subsequent transporting mechanism is quickly started to transport the workpiece, the long-term no-load operation of the subsequent transporting mechanism is avoided, and the energy consumption of the system is reduced.

Further, the main conveying roller bed comprises two strip-shaped side plates 1, a roller bed bottom plate 2, a main conveying motor 18 and two side strip-shaped baffle plates 3; two strip-shaped side plates 1 are respectively arranged on the length edges of the left side and the right side of the roller bed bottom plate 2; each main conveying support roller 21 is rotatably arranged between the two strip-shaped side plates 1, and the main conveying support rollers 21 are arranged in parallel at equal intervals; one end of one main conveying supporting roller 21 extends out of the strip-shaped side plate 1, and a main driving gear 17 is fixedly mounted on the extending end; the main conveying motor 18 drives the main driving gear 17 to rotate through the main driving chain 19; the end part of each main conveying support roller 21 is also fixedly provided with a synchronous gear, and a synchronous chain is arranged on the synchronous gear of the adjacent main conveying support roller 21 for synchronous transmission; a supporting foot 9 is arranged on the side edge of the bottom of the roller bed bottom plate 2; two side strip baffles 3 are respectively arranged above the two strip side plates 1 through each side adjusting frame.

Further, the side adjusting bracket comprises a vertical supporting rod 16, a vertical adjusting bolt 14 and a vertical adjusting seat 13; the vertical supporting rod 16 is vertically arranged on the outer side surface of the side strip-shaped baffle 3 through the side fixing seat 15; the vertical adjusting seat 13 is fixedly arranged on the outer side surface of the strip-shaped side plate 1 and is positioned below the side fixing seat 15, and a vertical adjusting hole is vertically arranged on the vertical adjusting seat 13; the vertical adjusting bolt 14 is vertically and rotatably arranged on the vertical adjusting seat 13, and the vertical adjusting bolt 14 extends into the vertical adjusting hole; the lower end of the vertical supporting rod 16 is vertically inserted into the vertical adjusting hole, and the vertical adjusting bolt 14 is screwed in the adjusting threaded hole at the lower end of the vertical supporting rod 16.

The height of the strip-shaped side plate 1 can be adjusted by utilizing the height adjustable structure arranged on the side adjusting frame, so that the limitation of side blocking of coating workpieces 107 of various sizes is met.

Further, the central pushing mechanism comprises a pushing driving motor 67 and transverse pushing units which are transversely arranged between the adjacent main conveying supporting rollers 21; the transverse pushing unit comprises a pushing conveying belt 56, two short shafts 60 and two strip-shaped supporting side plates 53; the two strip-shaped supporting side plates 53 are transversely and parallelly arranged, and an end supporting belt wheel 54 is rotatably arranged between the two ends of the two strip-shaped supporting side plates 53; each belt supporting roller 55 is rotationally arranged between the upper side edges of the two strip-shaped supporting side plates 53 at intervals; a push conveyor belt 56 is provided around the two end support pulleys 54, and each belt support roller 55 is supported on the inner side face of the push conveyor belt 56; two shaft holes 83 are formed in the strip-shaped supporting side plate 53, and the two short shafts 60 are respectively and rotatably mounted in the two shaft holes 83; two ends of the short shaft 60 are provided with a disc 63, and the two ends of the short shaft 60 are positioned at the same eccentric position of the inner side surfaces of the two discs 63; the centers of the outer side surfaces of the two circular discs 63 are respectively provided with a supporting shaft head 52; the supporting spindle head 52 is rotatably arranged on the roller bed bottom plate 2 through a spindle head seat 51; a belt driven pulley 62 is arranged at the end part of the pulley rotating shaft of one end part supporting pulley 54, a belt driving pulley 59 is arranged on the supporting shaft head 52 at the position close to the belt driven pulley 62, and the belt driven pulley 62 and the belt driving pulley 59 are driven by a transmission belt 61;

the end parts of the supporting shaft heads 52 at the front and rear corresponding positions of two adjacent transverse pushing units are installed in a butt joint mode, a synchronous gear 57 is installed on each of the two supporting shaft heads 52 on the front side of one of the transverse pushing units, and the two synchronous gears 57 are synchronously driven through a synchronous chain 58, so that the supporting shaft heads 52 synchronously rotate; a push driven gear 71 is arranged on one support shaft head 52 of one transverse push unit, and a push driving gear 72 is arranged at the end part of an output shaft of the push driving motor 67; the pushing driving gear 72 drives the pushing driven gear 71 to rotate through the pushing driving chain 78; after the supporting shaft heads 52 synchronously rotate, the upper side edges of the pushing conveying belts 56 of the transverse pushing units synchronously lift, and are higher than the main conveying supporting rollers 21 when the upper side edges lift to a high position and lower than the main conveying supporting rollers 21 when the upper side edges lower to a low position; the upper side of the pushing and conveying belt 56 of each transverse pushing unit on the left side is conveyed from left to right, and the upper side of the pushing and conveying belt 56 of each transverse pushing unit on the right side is conveyed from right to left.

By means of the bent rotating shaft structure formed by the short shaft 60, the disc 63 and the supporting shaft head 52, the pushing conveying belt 56 can be synchronously driven to intermittently lift and move when the supporting shaft head 52 rotates, so that the coating workpiece 107 can be intermittently lifted to leave the main conveying supporting roller 21, and the lifted coating workpiece 107 is gradually conveyed to the middle part through the pushing conveying belt 56 after being lifted each time; the push conveyor belt 56 can be driven by the transmission belt 61, the belt driving pulley 59, and the belt driven pulley 62, so that the horizontal transportation of the coating workpiece 107 is performed while the push conveyor belt 56 intermittently moves up and down; the intermittent lifting movement of the pushing conveyor belt 56 is utilized, so that the transportation of the main conveyor backup roller 21 is not affected during the pushing of the coating workpiece 107 to the center.

Further, convex rings 64 are arranged on the wheel surfaces of the end supporting belt wheel 54 and the belt supporting roller 55 in a surrounding manner, and anti-skid convex ribs 66 are arranged on the outer side surfaces of the convex rings 64; a groove 65 that fits the bead 64 is provided on the inner side surface of the push conveyor belt 56.

The misalignment of the end support pulley 54 and the push conveyor belt 56 can be prevented by the convex ring 64; the anti-slip performance of the end support pulley 54 can be enhanced by the provision of the anti-slip ribs 66.

Further, the middle thickness of the pushing conveyor belt 56 is greater than the edge thickness, the edge height of the pushing conveyor belt 56 is lower than the height of the main conveying support roller 21 when the pushing conveyor belt 56 rises to a high position, the middle height of the pushing conveyor belt 56 is higher than the height of the main conveying support roller 21, and the middle height of the pushing conveyor belt 56 is lower than the height of the main conveying support roller 21 when the pushing conveyor belt 56 descends to a low position.

By means of the arrangement that the middle thickness of the push conveying belt 56 is larger than the edge thickness, when the push conveying belt 56 rises to a high position, the edge height of the push conveying belt 56 is lower than the height of the main conveying supporting roller 21, so that the coating workpiece 107 conveyed on the main conveying supporting roller 21 cannot be blocked after rising, and longitudinal conveying and transverse conveying of the coating workpiece 107 are alternately carried out during conveying.

Further, a tension pulley 69 is hung on the driving belt 61, a belt tension spring 70 is mounted on the tension pulley 69, and an end of the belt tension spring 70 is hinge-mounted on the bar-shaped support side plate 53 through a tension seat 68.

The tensioning of the tensioning pulley 69, the belt tensioning tension spring 70 and the tensioning shoe 68 is used to ensure the tensioning of the drive belt 61 even during the lifting movement of the transverse pushing unit.

Further, a chain tensioning mechanism is arranged on the roller bed bottom plate 2; the chain tensioning mechanism comprises a tensioning gear 77, a tensioning swing rod 76, a chain tensioning pressure spring 82, a chain tensioning seat 74 and a tensioning positioning bolt 81; a tensioning adjusting T-shaped groove 73 is formed in the roller bed bottom plate 2, and tensioning positioning holes 75 are formed in the bottom of the tensioning adjusting T-shaped groove 73 at intervals; the lower side edge of the chain tensioning seat 74 is slidably embedded in the tensioning adjusting T-shaped groove 73, the tensioning positioning bolt 81 is screwed on the chain tensioning seat 74, and the end part of the screw rod of the tensioning positioning bolt 81 extends into one tensioning positioning hole 75; the lower end of the tensioning swing rod 76 is hinged on the roller bed bottom plate 2 in a swinging mode, the tensioning gear 77 is rotatably arranged at the upper end of the tensioning swing rod 76, and the tensioning gear 77 is meshed with the pushing driving chain 78; a tensioning telescopic rod 79 is arranged on the chain tensioning seat 74 in a swinging and hinged mode, a tensioning telescopic sleeve 80 is arranged in the middle of the tensioning swing rod 76 in a swinging and hinged mode, and the end portion of the tensioning telescopic rod 79 is inserted into the tensioning telescopic sleeve 80; the chain tensioning compression spring 82 is sleeved on the tensioning telescopic rod 79 and the tensioning telescopic sleeve 80, and the chain tensioning compression spring 82 is elastically supported between the tensioning swing rod 76 and the chain tensioning seat 74 and used for pushing the tensioning gear 77 to press on the pushing driving chain 78.

The chain tensioning mechanism can ensure the tensioning performance of the push drive chain 78; by means of the cooperation of the tensioning telescopic sleeve 80 and the tensioning telescopic rod 79, the chain tensioning pressure spring 82 can be telescopically guided and supported.

Further, the identification mounting bracket comprises two side height adjusting frames, and each side height adjusting frame is composed of a sleeve mounting bottom plate 8, a height adjusting sleeve 5, a vertical adjusting support rod 4 and a height adjusting nut 6; the height adjusting sleeve 5 is vertically arranged on the sleeve mounting bottom plate 8, and a C-shaped adjusting plate 11 is arranged at the upper end pipe orifice of the height adjusting sleeve 5; the lower end of the vertical adjusting stay bar 4 vertically penetrates through the C-shaped adjusting plate 11 and then is inserted into the upper end pipe orifice of the height adjusting sleeve 5; an adjusting external thread 7 is arranged on the lower end rod wall of the vertical adjusting support rod 4, a height adjusting nut 6 is screwed on the adjusting external thread 7, and the height adjusting nut 6 is positioned between the upper side edge and the lower side edge of the C-shaped adjusting plate 11; the bottom of the control box body 10 is provided with the top ends of the vertical adjusting support rods 4 of the two side height adjusting frames.

The height of the control box body 10 can be adjusted by utilizing the two side height adjusting frames, so that the requirements of field installation and debugging are met, and the image recognition height requirements of coating workpieces 107 of various sizes are met; utilize C shape adjusting plate 11 can carry on spacingly to altitude mixture control nut 6 to the height of vertical regulation vaulting pole 4 of back adjustment.

In the coating production line online detection and identification device based on machine vision, the controller adopts the existing FPGA controller module, and can realize image recognition processing, signal receiving and processing of each sensor and sending of motor driving signals; the memory is composed of the existing memory chip and the peripheral circuit thereof; the main conveying motor 18 and the pushing driving motor 67 both adopt the existing stepping motors with speed reducers; the feeding side position sensor 20 and the discharging side position sensor 102 both adopt the existing infrared position sensors; the image recognition camera 12 is an existing depth-of-field camera and is used for collecting images of the painting workpiece 107 transported on the main transport roller bed, so that the controller can recognize the painting workpiece 107 according to the collected images and transport the painting workpiece 107 to a corresponding branch transport roller bed through the workpiece transfer mechanism according to a preset process flow, and an existing image recognition method is adopted when the controller performs image recognition.

The utility model discloses a coating production line on-line detection recognition device based on machine vision, when using, firstly obtaining the characteristic image of various coating workpieces 107 and storing in the memory, for comparing and recognizing when recognizing images; then the supporting height of the recognition mounting bracket and the height of the side strip-shaped baffle 3 are adjusted according to the field mounting requirement; when the coating workpiece 107 is transported on the main transport support roller 21, the central pushing mechanism pushes the coating workpiece 107 to the middle of the main transport roller bed for transportation, after the loading side position sensor 20 detects the coating workpiece 107, the controller starts the image recognition camera 12 to perform image acquisition on the lower coating workpiece 107, the controller performs real-time processing recognition on the acquired image, and then the subsequent process of the current coating workpiece 107 is determined according to the preset process routes of various coating workpieces 107; when the blanking-side position sensor 102 detects the coated workpiece 107, the subsequent transfer mechanism sends a signal, so that the subsequent transfer mechanism transfers the coated workpiece 107 to the corresponding coating process equipment for processing.

As mentioned above, although the present invention has been shown and described with reference to certain preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (9)

1. The utility model provides a coating line on-line measuring recognition device based on machine vision which characterized in that: comprises a main conveying roller bed and an image recognition mechanism;

the image recognition mechanism comprises a control box body (10), a feeding side position sensor (20), a recognition mounting bracket and an image recognition camera (12); the control box body (10) is arranged above the feeding side of the main conveying roller bed through an identification mounting bracket; a controller and a memory are arranged in the control box body (10); the image recognition camera (12) is arranged at the center of the lower side surface of the control box body (10); the feeding side position sensor (20) is fixedly arranged in the middle of the edge of the feeding side of the control box body (10) and is used for detecting the position of a coating workpiece (107) on the feeding side;

a blanking side position sensor (102) is arranged on the blanking side of the main conveying roller bed and used for detecting the position of a coating workpiece (107) on the blanking side; a central pushing mechanism is arranged on the left side and the right side of the feeding side of the main conveying roller bed and used for pushing coating workpieces (107) conveyed on the left side and the right side of the feeding side of the main conveying roller bed to the middle; the controller is electrically connected with the memory, the image recognition camera (12), the feeding side position sensor (20) and the discharging side position sensor (102) respectively.

2. The machine vision-based painting line on-line detection and identification device of claim 1, characterized in that: the main conveying roller bed comprises two strip-shaped side plates (1), a roller bed bottom plate (2), a main conveying motor (18) and two side strip-shaped baffle plates (3); two strip-shaped side plates (1) are respectively arranged on the length edges of the left side and the right side of the roller bed bottom plate (2); each main conveying support roller (21) is rotatably arranged between the two strip-shaped side plates (1), and the main conveying support rollers (21) are arranged in parallel at equal intervals; the end part of one main conveying supporting roller (21) extends out of the strip-shaped side plate (1), and a main driving gear (17) is fixedly arranged on the extending end part; the main conveying motor (18) drives the main driving gear (17) to rotate through a main driving chain (19); the end part of each main conveying support roller (21) is also fixedly provided with a synchronous gear, and a synchronous chain is arranged on the synchronous gear of the adjacent main conveying support roller (21) for synchronous transmission; a supporting bottom foot (9) is arranged on the side edge of the bottom of the roller bed bottom plate (2); two side strip baffles (3) are respectively arranged above the two strip side plates (1) through each side adjusting frame.

3. The machine vision-based painting line online detection and identification device of claim 2, characterized in that: the side edge adjusting frame comprises a vertical supporting rod (16), a vertical adjusting bolt (14) and a vertical adjusting seat (13); the vertical supporting rod (16) is vertically arranged on the outer side surface of the side strip-shaped baffle (3) through the side fixing seat (15); the vertical adjusting seat (13) is fixedly arranged on the outer side surface of the strip-shaped side plate (1) and is positioned below the side fixing seat (15), and a vertical adjusting hole is vertically arranged on the vertical adjusting seat (13); the vertical adjusting bolt (14) is vertically and rotatably arranged on the vertical adjusting seat (13), and the vertical adjusting bolt (14) extends into the vertical adjusting hole; the lower end of the vertical supporting rod (16) is vertically inserted into the vertical adjusting hole, and the vertical adjusting bolt (14) is screwed in the adjusting threaded hole at the lower end of the vertical supporting rod (16).

4. The machine vision-based painting line online detection and identification device of claim 2, characterized in that: the central pushing mechanism comprises pushing driving motors (67) and transverse pushing units which are transversely arranged between adjacent main conveying supporting rollers (21); the transverse pushing unit comprises a pushing conveying belt (56), two short shafts (60) and two strip-shaped supporting side plates (53); the two strip-shaped supporting side plates (53) are transversely and parallelly arranged, and an end supporting belt wheel (54) is rotatably arranged between the two ends of the two strip-shaped supporting side plates (53); each belt supporting roller (55) is rotationally arranged between the upper side edges of the two strip-shaped supporting side plates (53) at intervals; the pushing and conveying belt (56) is arranged on the two end supporting belt wheels (54) in a surrounding mode, and each belt supporting roller (55) is supported on the inner side face of the pushing and conveying belt (56); two shaft holes (83) are formed in the strip-shaped supporting side plate (53), and the two short shafts (60) are respectively and rotatably mounted in the two shaft holes (83); two ends of the short shaft (60) are respectively provided with a disc (63), and the two ends of the short shaft (60) are positioned at the same eccentric position of the inner side surfaces of the two discs (63); the centers of the outer side surfaces of the two circular discs (63) are respectively provided with a supporting shaft head (52); the supporting shaft head (52) is rotatably arranged on the roller bed bottom plate (2) through a shaft head seat (51); a belt driven pulley (62) is arranged at the end part of a pulley rotating shaft of one end part supporting pulley (54), a belt driving pulley (59) is arranged on a supporting shaft head (52) close to the position of the belt driven pulley (62), and the belt driven pulley (62) and the belt driving pulley (59) are driven by a transmission belt (61);

the end parts of the supporting shaft heads (52) at the front and rear corresponding positions of two adjacent transverse pushing units are installed in a butt joint mode, a synchronous gear (57) is installed on each of the two supporting shaft heads (52) on the front side of one of the transverse pushing units, and the two synchronous gears (57) are synchronously driven through a synchronous chain (58), so that each supporting shaft head (52) synchronously rotates; a push driven gear (71) is arranged on one support shaft head (52) of one transverse push unit, and a push driving gear (72) is arranged at the end part of an output shaft of a push driving motor (67); the pushing driving gear (72) rotationally drives the pushing driven gear (71) through a pushing driving chain (78); after the supporting shaft heads (52) synchronously rotate, the upper side of the pushing conveying belt (56) of each transverse pushing unit synchronously rises and falls, and is higher than the height of the main conveying supporting roller (21) when rising to a high position and lower than the height of the main conveying supporting roller (21) when falling to a low position; the upper side of the pushing conveying belt (56) of each transverse pushing unit on the left side is conveyed from left to right, and the upper side of the pushing conveying belt (56) of each transverse pushing unit on the right side is conveyed from right to left.

5. The machine vision-based painting line online detection and identification device of claim 4, characterized in that: convex rings (64) are arranged on the wheel surfaces of the end part supporting belt wheel (54) and the belt supporting roller wheel (55) in a surrounding way, and anti-skid convex edges (66) are arranged on the outer side surfaces of the convex rings (64); the inner side surface of the pushing and conveying belt (56) is provided with a groove (65) matched with the convex ring (64).

6. The machine vision-based painting line online detection and identification device of claim 4, characterized in that: the middle thickness of the pushing conveying belt (56) is larger than the edge thickness, the edge height of the pushing conveying belt (56) is lower than the height of the main conveying supporting roller (21) when the pushing conveying belt (56) rises to a high position, the middle height of the pushing conveying belt (56) is higher than the height of the main conveying supporting roller (21), and the middle height of the pushing conveying belt (56) is lower than the height of the main conveying supporting roller (21) when the pushing conveying belt (56) descends to a low position.

7. The machine vision-based painting line online detection and identification device of claim 4, characterized in that: a tensioning pulley (69) is hung on the transmission belt (61), a belt tensioning tension spring (70) is installed on the tensioning pulley (69), and the end part of the belt tensioning tension spring (70) is hinged on the strip-shaped supporting side plate (53) through a tensioning seat (68).

8. The machine vision-based painting line online detection and identification device of claim 4, characterized in that: a chain tensioning mechanism is arranged on the roller bed bottom plate (2); the chain tensioning mechanism comprises a tensioning gear (77), a tensioning swing rod (76), a chain tensioning pressure spring (82), a chain tensioning seat (74) and a tensioning positioning bolt (81); a tensioning adjusting T-shaped groove (73) is arranged on the roller bed bottom plate (2), and tensioning positioning holes (75) are arranged at intervals at the bottom of the tensioning adjusting T-shaped groove (73); the lower side edge of the chain tensioning seat (74) is embedded into a tensioning adjusting T-shaped groove (73) in a sliding mode, a tensioning positioning bolt (81) is installed on the chain tensioning seat (74) in a threaded mode, and the end portion of a screw rod of the tensioning positioning bolt (81) extends into one tensioning positioning hole (75); the lower end of the tensioning swing rod (76) is hinged to the roller bed bottom plate (2) in a swinging mode, the tensioning gear (77) is rotatably installed at the upper end of the tensioning swing rod (76), and the tensioning gear (77) is meshed with the pushing driving chain (78); a tensioning telescopic rod (79) is arranged on the chain tensioning seat (74) in a swinging and hinged mode, a tensioning telescopic sleeve (80) is arranged in the middle of the tensioning swing rod (76) in a swinging and hinged mode, and the end portion of the tensioning telescopic rod (79) is inserted into the tensioning telescopic sleeve (80); the chain tensioning pressure spring (82) is sleeved on the tensioning telescopic rod (79) and the tensioning telescopic sleeve (80), and the chain tensioning pressure spring (82) is elastically supported between the tensioning swing rod (76) and the chain tensioning seat (74) and used for pushing the tensioning gear (77) to press the pushing driving chain (78).

9. The machine vision-based painting line on-line detection and identification device of claim 1, characterized in that: the recognition mounting bracket comprises two side edge height adjusting brackets, and each side edge height adjusting bracket consists of a sleeve mounting bottom plate (8), a height adjusting sleeve (5), a vertical adjusting support rod (4) and a height adjusting nut (6); the height adjusting sleeve (5) is vertically arranged on the sleeve mounting bottom plate (8), and a C-shaped adjusting plate (11) is arranged at the upper end pipe orifice of the height adjusting sleeve (5); the lower end of the vertical adjusting stay bar (4) vertically penetrates through the C-shaped adjusting plate (11) and then is inserted into the upper end pipe orifice of the height adjusting sleeve (5); an adjusting external thread (7) is arranged on the lower end rod wall of the vertical adjusting support rod (4), a height adjusting nut (6) is screwed on the adjusting external thread (7), and the height adjusting nut (6) is positioned between the upper side edge and the lower side edge of the C-shaped adjusting plate (11); the bottom of the control box body (10) is provided with the top ends of the vertical adjusting support rods (4) of the two side height adjusting frames.

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