CN105403574B - High-speed quality control machine using machine vision detection - Google Patents

Abstract

The invention relates to the technical field of detection equipment, in particular to a high-speed quality inspection machine utilizing machine vision detection. The invention discloses a high-speed product inspection machine utilizing machine vision detection, which comprises a base frame assembly and an imaging lens, wherein the imaging lens is arranged on the base frame assembly, the high-speed product inspection machine further comprises an imaging station, a coiling roller for supporting coiling materials, a first material belt suction table and a material receiving roller, the imaging lens is arranged on one side of the imaging station, the first material belt suction table is arranged on the other side of the imaging station, the coiling roller is arranged at one end of the base frame assembly, and the material receiving roller is arranged at the other end of the base frame assembly. According to the high-speed quality inspection machine utilizing machine vision detection, during imaging, the material belt is fixed below the imaging lens, imaging is clear, the recognition rate is high, and the detection efficiency is high.

Description

A high-speed quality inspection machine using machine vision inspection

technical field

The invention relates to the technical field of detection equipment, in particular to a high-speed quality inspection machine using machine vision detection.

Background technique

In industries such as mobile phones and electronic products, it is often necessary to paste labels, barcodes, QR codes, etc. on products. With the emergence of automatic labeling equipment, the efficiency of labeling has been greatly improved, but there are new requirements for the accuracy of the information to be labeled, so it is necessary to detect the labels to be labeled. Manual inspection is inefficient and cannot meet the needs of automated production.

Therefore, it is necessary to provide a device for automatic and rapid detection of labels, barcodes and two-dimensional codes.

Contents of the invention

The purpose of the present invention is to provide a high-speed quality inspection machine using machine vision detection, which has high imaging precision and high detection efficiency.

In order to achieve the above object, a high-speed quality inspection machine using machine vision detection according to the present invention includes a base frame assembly and an imaging lens, the imaging lens is arranged on the base frame assembly, and also includes an imaging station, a coil material for supporting the coil material The roller, the first material tape suction table and the receiving roller, the imaging lens is set on one side of the imaging station, the first material tape suction table is set on the other side of the imaging station, and the coil roll is set on the base frame assembly One end of the base frame assembly, and the receiving roller is set at the other end of the base frame assembly.

Preferably, it further includes a second tape suction station and a third tape suction station, and the second tape suction station and the third tape suction station are respectively arranged at two ends of the first tape suction station.

Preferably, the first strip suction includes an orifice plate and a fan, the orifice plate is arranged below the imaging station, and the fan is arranged under the orifice plate.

Preferably, it also includes an intermittent coil brake assembly, the intermittent coil brake assembly includes a swing roller, a swing arm assembly, a brake band, a return elastic member and a corner roller, and the swing roller is rotatably arranged at one end of the swing arm assembly And it is arranged on one side of the coiling roller, the other end of the swing arm assembly can be rotatably set on the base frame assembly, one end of the brake band is connected with the other end of the swing arm assembly, and the middle part of the brake band is attached to one end of the coiling roll , the other end of the brake band is connected to the base frame assembly; the corner roller is arranged on the base frame assembly and on one side of the coil roll; one end of the reset elastic member is connected to one end of the swing arm assembly, and the other end of the reset elastic member is connected to the The base frame components are connected; one end of the material strip is drawn out from the coil roll and then goes around the corner roll and the swing roll in turn.

Preferably, the return elastic member includes a first extension spring, one end of the first extension spring is connected to one end of the swing arm assembly, and the other end of the first extension spring is connected to the base frame assembly.

Preferably, the intermittent coil braking assembly further includes an adjusting screw and an adjusting nut matched with the adjusting screw, the adjusting nut is rotatably arranged on the base assembly, and the other end of the first tension spring is connected to the adjusting screw.

Preferably, the intermittent coil braking assembly further includes a second tension spring, and the other end of the braking band is connected to the base frame assembly through the second tension spring.

Preferably, one end of the winding roller is provided with a braking part, and the middle part of the braking band is half-wrapped by the braking part.

Preferably, the swing arm assembly includes a long arm and a short arm, one end of the short arm is rotatably arranged on the base frame assembly, one end of the braking band is fixed to one end of the short arm, and the other end of the short arm is close to the long arm, The pendulum roller is rotatably arranged at one end of the long arm, and the other end of the long arm is rotatably arranged at the base frame assembly and arranged between the short arm and the winding roller.

Preferably, the intermittent coil brake assembly further includes a roller, which is rotatably arranged at the other end of the short arm and is in close contact with the long arm.

Preferably, the intermittent coil braking assembly further includes a third extension spring, one end of the third extension spring is connected to the other end of the short arm, and the other end of the third extension spring is connected to the base frame assembly.

Beneficial effects of the present invention: a high-speed quality inspection machine using machine vision detection of the present invention, when the receiving roller stops rotating, the material belt is fixed below the imaging lens, which facilitates clear imaging of the imaging lens and shortens the focusing of the imaging lens The time shortens the imaging time and improves the detection efficiency; at the same time, the material tape remains fixed during imaging, which facilitates the improvement of the winding speed of the take-up roller, thereby further improving the detection efficiency. The negative pressure generated by the first tape suction table is used to fix the tape, avoiding the use of pressing parts, the structure is simple, and the tape or barcode is not worn.

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the present invention.

Fig. 2 is a front view structural schematic diagram of the present invention.

Fig. 3 is a schematic structural view of the first tape suction station of the present invention.

Fig. 4 is a structural schematic diagram of the intermittent coil braking assembly and the coil roller according to Embodiment 1 of the present invention.

FIG. 5 is another structural schematic diagram of the intermittent coil braking assembly and coil rollers according to Embodiment 1 of the present invention.

Fig. 6 is a structural schematic diagram of the intermittent coil braking assembly and the coil roller according to the second embodiment of the present invention.

Reference signs include:

0—tape

10—base frame assembly 11—roller 111—braking part

21—imaging lens 22—imaging station

31—the first material belt suction table 311—orifice plate 312—fan

32—the second material belt suction table 33—the third material belt suction table

4—rewind roller

5—Intermittent coil brake assembly

51—Swing roller 52—Corner roller

531—Reset elastic member 532—Second tension spring 533—Third tension spring

54—Swing arm assembly

541—long arm 542—short arm 543—roller

55—brake band 561—adjusting screw rod 562—adjusting nut.

Detailed ways

The high-speed quality inspection machine using machine vision detection of the present invention can realize static photographing, clear imaging, high recognition accuracy and high detection efficiency.

The present invention will be described in detail below in conjunction with the accompanying drawings.

Embodiment one.

As shown in Figures 1 and 2, a high-speed quality inspection machine using machine vision detection according to the present invention includes a base frame assembly 10 and an imaging lens 21, and the imaging lens 21 is arranged on the base frame assembly 10, and also includes an imaging station 22, Coil material roll 11, the first material tape suction table 31 and the material receiving roller 4 that are used to support the coil material, the imaging lens 21 is arranged on one side of the imaging station 22, and the first material tape suction table 31 is arranged on the imaging work station On the other side of the position 22 , the winding roller 11 is arranged at one end of the base frame assembly 10 , and the receiving roller 4 is arranged at the other end of the base frame assembly 10 . The code to be detected is attached to the bottom film to form a tape 0, which is wound into a roll and placed on the coil roll 11, and the take-up roll 4 rotates under the drive of an external motor, and the tape 0 is driven by the take-up roll 4 Advance down, pass through the imaging station 22, when the imaging lens 21 takes pictures, the material receiving roller 4 stops rotating, the material belt 0 stops advancing, and the first material belt suction table 31 generates a certain negative pressure to fix the material belt 0 on the imaging lens Below 21, the imaging lens 21 takes pictures of the code stopped in the imaging station 22, and transmits the image information to the processor for comparison, so as to determine whether the information of the code is correct. Invented a high-speed quality inspection machine using machine vision detection, when the receiving roller 4 stops rotating, the material belt 0 is fixed below the imaging lens 21, which facilitates clear imaging of the imaging lens 21 and shortens the focusing time of the imaging lens 21. The imaging time is shortened, and the detection efficiency is improved; at the same time, the material tape 0 is kept fixed during imaging, which is convenient for increasing the winding speed of the take-up roller 4, thereby further improving the detection efficiency. The negative pressure generated by the first tape suction table 31 is used to fix the tape 0, avoiding the use of pressing parts, the structure is simple, and the wear of the tape 0 or the bar code is avoided.

As shown in Figures 1 and 2, it also includes a second strip suction station 32 and a third strip suction station 33, the second strip suction station 32 and the third strip suction station 33 are arranged on the first strip suction station 33 respectively. At the two ends of the material tape suction table 31, when the receiving roller 4 stopped rotating, the first material tape suction table 31 fixed the material tape 0 below the image lens, the second material tape suction table 32 and the third material tape The suction table 33 respectively fixes the strips 0 at both ends of the imaging station 22, which further improves the stability of the strips 0 when the imaging lens 21 takes pictures, avoids the slack of the strips 0, shortens the imaging time, and improves the detection efficiency. Specifically, the first tape suction station 31 includes an orifice plate 311 and a fan 312 , the orifice plate 311 is disposed under the imaging station 22 , and the fan 312 is disposed under the orifice plate 311 . During work, the fan 312 can be in the rotating state all the time, and the material belt 0 is close to the detector all the time, and the fan 312 can also be started when the receiving roller 4 stops rotating to absorb the material belt 0 .

As shown in Figures 1, 2, 4, and 5, it also includes an intermittent coil braking assembly 5, which includes a swing roller 51, a swing arm assembly 54, a braking band 55, and a reset elastic member 531 And the corner roller 52, the swing roller 51 is rotatably arranged at one end of the swing arm assembly 54 and arranged on one side of the coil roll 11, the other end of the swing arm assembly 54 is rotatably arranged at the base assembly 10, and the brake band 55 One end is connected with the other end of the swing arm assembly 54, the middle part of the braking band 55 is attached to one end of the winding roller 11, and the other end of the braking band 55 is connected with the base frame assembly 10; the corner roller 52 is arranged on the base frame assembly 10 and Set on one side of the coil roll 11; one end of the reset elastic member 531 is connected to one end of the swing arm assembly 54, and the other end of the reset elastic member 531 is connected to the base frame assembly 10; After the roller 11 is drawn out, it goes around the corner roller 52 and the pendulum roller 51 in turn, and then is fixed on the receiving roller 4 that drives the material belt 0 to move.

When the receiving roller 4 rotates, the material belt 0 bears a certain pulling force and moves forward. At this time, the material belt 0 remains in a tensioned state. The pulling force is deflected, so that the other end of the swing arm assembly 54 loosens the brake band 55, and the winding roller 11 loses the effect of the brake band 55 and is pulled and rotated by the material band 0, and the reset elastic member 531 is in an elastically deformed state.

When the material belt 0 needs to stop, the receiving roller 4 stops rotating, and the material belt 0 loses the traction of the receiving roller 4 and becomes a slack state. Under the effect of potential energy, one end of the swing arm assembly 54 is pulled back, causing the other end of the swing arm assembly 54 to tension the brake band 55, and the tensioned brake band 55 is close to one end of the coil material roller 11, and the coil material The roller 11 exerts a frictional force, and under the action of the frictional force, the coiling material roller 11 is braked, thereby avoiding the continuous rotation of the coiled material due to the inertia of the coiled material, thereby avoiding the slack of the material belt 0; When one end of 54 is pulled back, the pendulum roller 51 drives the material belt O to pull back, so that the material belt O is tensioned, further preventing the material belt O from being slack.

An intermittent coil material braking device of the present invention can perform intermittent braking on the coil material to prevent the coil material from continuing to rotate due to the inertia of the coil material after the winding roller 4 stops winding, thereby avoiding the slack of the material belt 0. An intermittent coil braking device of the present invention has an ingenious design and a simple structure. When the material belt 0 loses traction power, the swing arm assembly 54 is triggered to swing, thereby triggering the braking belt 55 to brake the coil roller 11. Moreover, the swing arm assembly 54 is used to swing back to tighten the material tape 0, avoiding the slack of the material tape 0, and further avoiding the blurring of the image caused by the left and right movement of the material tape 0 when the imaging lens 21 takes pictures, thereby improving the recognition rate of the imaging lens 21 , it is convenient to further increase the winding speed of the receiving roller 4.

As shown in Figures 4 and 5, the return elastic member 531 includes a first extension spring, one end of the first extension spring is connected to one end of the swing arm assembly 54, and the other end of the first extension spring is connected to the base frame assembly 10, when When the material belt 0 moves forward under the traction of external power, the swing arm assembly 54 overcomes the tension of the first extension spring to swing, and the first extension spring undergoes elastic deformation; when the material belt 0 needs to stop, the first extension spring overcomes the material The pulling force of the belt 0 pulls the swing arm assembly 54 back, so that the material belt 0 is kept in a certain degree of tension, and the material belt 0 is prevented from being loose.

As shown in Figures 4 and 5, it also includes an adjusting screw 561 and an adjusting nut 562 matched with the adjusting screw 561, the adjusting nut 562 is rotatably arranged on the base assembly 10, and the other end of the first extension spring is connected with the adjusting screw 561, so that The adjustment nut 562 rotates relative to the adjustment screw rod 561, which can adjust the tightness of the first extension spring, thereby realizing the adjustment of the degree of pullback of the swing arm assembly 54 and the tension degree of the adjustment material belt 0 when it stops. The coil brake device is suitable for strips with different elastic modulus, thereby improving the compatibility of a high-speed quality inspection machine using machine vision detection in the present invention.

As shown in Figures 4 and 5, a second extension spring 532 is also included, and the other end of the braking band 55 is connected with the base frame assembly 10 through the second extension spring 532; the second extension spring 532 allows the other end of the swing arm assembly 54 to The braking band 55 is pulled for a certain distance. In addition, adjusting the length of the second extension spring 532 can be used to adjust the tightness of the braking band 55 to the coil material roller 11; Frictional force when braking the reel roll 11. Further preferably, one end of the winding roll 11 is provided with a braking part 111, and the middle part of the braking band 55 is half-wrapped in the braking part 111, which increases the stress area and improves the invention of a machine vision detection method. The reliability of the high-speed quality inspection machine.

Embodiment two.

As shown in Figures 1, 2, and 6, the difference between this embodiment and Embodiment 1 is that the swing arm assembly 54 includes a long arm 541 and a short arm 542, and one end of the short arm 542 is rotatably arranged on the base assembly 10. One end of the brake band 55 is fixed to one end of the short arm 542, the other end of the short arm 542 is close to the long arm 541, the pendulum roller 51 is rotatably arranged at one end of the long arm 541, and the other end of the long arm 541 is rotatably set It is located on the base frame assembly 10 and arranged between the short arm 542 and the winding roller 11 . When the material belt 0 is pulled by the traction device, under the action of the material belt 0, the long arm 541 swings, and the long arm 541 pushes the short arm 542 to swing, and one end of the short arm 542 loosens the braking band 55, and the winding roller 11 Losing the function of the braking band 55, the winding roller 11 rotates under the traction of the material belt 0, so that the material belt 0 continues to advance. When the strip 0 loses the traction of the traction device, the long arm 541 swings back under the action of the reset elastic member 531, and the long arm 541 drives the short arm 542 to swing back, so that one end of the short arm 542 tightens the brake band 55, thereby braking The moving belt 55 acts on the winding material roller 11 to brake the winding material roller 11, thereby preventing the material belt 0 from being slack. The intermittent coil braking device of the present invention has sensitive response. Specifically, a third tension spring 533 is further included, one end of the third tension spring 533 is connected to the other end of the short arm 542 , and the other end of the third tension spring 533 is connected to the base frame assembly 10 .

As shown in Figure 6, it also includes a roller 543, the roller 543 is rotatably arranged at the other end of the short arm 542 and is close to the long arm 541, when the long arm 541 swings, the roller 543 slides along the long arm 541 to avoid long A jam occurs between the arm 541 and the short arm 542 . The intermittent coil braking device of the present invention has high reliability and sensitive response.

The rest of this embodiment is the same as that of Embodiment 1, and the features not explained in this embodiment are explained in Embodiment 1, and will not be repeated here.

To sum up, it can be known that the present invention has the above-mentioned excellent characteristics, which enables it to improve the performance that is not available in the prior art in use, and has practicability, and becomes a product with great practical value.

The above content is only a preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. limits.

Claims (7)

1. A high-speed quality inspection machine utilizing machine vision detection, comprising a base frame assembly (10) and an imaging lens (21), and the imaging lens (21) is arranged on the base frame assembly (10), characterized in that: it also includes an imaging tool position (22), a coil material roller (11) for supporting the coil material, the first material tape suction table (31) and a material receiving roller (4), and the imaging lens (21) is arranged on the imaging station (22) On one side, the first tape suction station (31) is set on the other side of the imaging station (22), the coil roll (11) is set on one end of the base frame assembly (10), and the take-up roll (4) is set at the other end of the base frame assembly (10); Also includes intermittent coil material braking assembly (5), intermittent coil material braking assembly (5) includes swing roller (51), swing arm assembly (54), braking band (55), reset elastic member (531) And the corner roller (52), the swing roller (51) is rotatably arranged on one end of the swing arm assembly (54) and arranged on one side of the coil roll (11), and the other end of the swing arm assembly (54) is rotatably arranged on The base frame assembly (10), one end of the braking band (55) is connected with the other end of the swing arm assembly (54), the middle part of the braking band (55) is attached to an end of the winding material roller (11), and the braking band ( The other end of 55) is connected with the base frame assembly (10); the corner roller (52) is arranged on the base frame assembly (10) and is arranged on one side of the coil roll (11); One end of the arm assembly (54) is connected, and the other end of the reset elastic member (531) is connected with the base frame assembly (10); One end of the coil material roller (11) is provided with a brake part (111), and the middle part of the brake band (55) is half-wrapped in the brake part (111); Swing arm assembly (54) comprises long arm (541) and short arm (542), and one end of short arm (542) is rotatably arranged on base frame assembly (10), and one end of braking band (55) is fixed on short arm ( 542), the other end of the short arm (542) is close to the long arm (541), the pendulum roller (51) is rotatably arranged at one end of the long arm (541), and the other end of the long arm (541) is rotatably set on the base frame assembly (10) and arranged between the short arm (542) and the coil roll (11). 2. A kind of high-speed quality inspection machine utilizing machine vision detection according to claim 1, characterized in that: it also includes a second tape suction table (32) and a third tape suction table (33), the first The second material tape suction station (32) and the third material tape suction station (33) are respectively arranged at the two ends of the first material tape suction station (31). 3. A high-speed quality inspection machine using machine vision detection according to claim 1, characterized in that: the reset elastic member (531) includes a first extension spring, and one end of the first extension spring is connected to the swing arm assembly ( 54) is connected at one end, and the other end of the first extension spring is connected with the base frame assembly (10). 4. A high-speed quality inspection machine using machine vision inspection according to claim 3, characterized in that: the intermittent coil braking assembly (5) also includes an adjusting screw (561) and an adjusting screw (561 ) with an adjusting nut (562), the adjusting nut (562) is rotatably arranged on the base frame assembly (10), and the other end of the first extension spring is connected with the adjusting screw rod (561). 5. A high-speed quality inspection machine using machine vision detection according to claim 1, characterized in that: the intermittent coil brake assembly (5) also includes a second tension spring (532), a brake band The other end of (55) is connected with the base frame assembly (10) through the second tension spring (532). 6. A high-speed quality inspection machine using machine vision inspection according to claim 1, characterized in that: the intermittent coil braking assembly (5) also includes a roller (543), which can rotate It is arranged on the other end of the short arm (542) and is close to the long arm (541). 7. A high-speed quality inspection machine using machine vision detection according to claim 1, characterized in that: the intermittent coil brake assembly (5) also includes a third tension spring (533), the third tension spring One end of the spring (533) is connected with the other end of the short arm (542), and the other end of the third extension spring (533) is connected with the base frame assembly (10).