Packaging box paperboard visual inspection device

Abstract

The invention relates to the technical field of visual inspection, and provides a packaging box paperboard visual inspection device which comprises a conveying belt, the conveying belt comprises a first conveying belt body and a second conveying belt body which are sequentially arranged in the conveying direction, a defect detection assembly is arranged above the first conveying belt body, and a first removing opening is formed between the first conveying belt body and the second conveying belt body; the first removing opening is provided with a removing baffle capable of closing the first removing opening, the end, close to the second conveying belt, of the removing baffle is rotationally connected to the first removing opening, and after the other end of the removing baffle rotates upwards, defective paperboards can be stopped and promoted to fall into the first removing opening. A third conveying belt, a second removing opening and a fourth conveying belt are sequentially arranged below the removing opening, an unrepairable material box is arranged at the rear end of the fourth conveying belt, a repairable material box is arranged below the second removing opening, and the second removing opening is also provided with a removing baffle. According to the paperboard collecting device, defective paperboards can be collected in a classified mode and divided into repairable defective paperboards and irrepairable defective paperboards, and resources can be fully utilized conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of visual inspection, and in particular to a packaging box cardboard visual inspection device. Background Art

[0002] At present, some packaging boxes on the market are made by die-cutting, creasing, nailing or gluing corrugated cardboard. For the appearance defect detection of the printed front of the corrugated cardboard, it is mostly carried out through a visual inspection device. The existing visual inspection device usually includes a conveyor belt, a defect detection component (industrial camera) and a defective product rejection mechanism. When working, the conveyor belt transports the cardboard to the defect detection component for detection and identification. If there is no defect, the conveyor belt continues to transport the cardboard away. If there is a defect, the defective product rejection mechanism will remove the defective cardboard from the conveyor belt. However, in fact, part of the defective cardboard can be repaired, while the other part cannot be repaired. The rejection mechanism in the existing visual inspection device will reject the defective cardboard and collect it for unified processing, which is not convenient for making full use of resources. Summary of the invention

[0003] The object of the present invention is to provide a packaging box cardboard visual inspection device to solve the above-mentioned defects of the prior art.

[0004] The present invention is achieved through the following technical solutions:

[0005] A packaging box cardboard visual inspection device comprises a conveyor belt, a defect detection assembly is arranged above the conveyor belt, the conveyor belt comprises a No. 1 conveyor belt and a No. 2 conveyor belt arranged in sequence along the conveying direction, the defect detection assembly is arranged above the No. 1 conveyor belt, a first rejection port is arranged between the No. 1 conveyor belt and the No. 2 conveyor belt, the first rejection port is provided with a rejection baffle which can close the first rejection port, one end of the rejection baffle close to the No. 2 conveyor belt is rotatably connected to the first rejection port, and the other end of the rejection baffle is rotated upward to block and promote defective cardboard to fall into the first rejection port;

[0006] A No. 3 conveyor belt is arranged below the rejection port, a No. 4 conveyor belt is arranged at the rear end of the No. 3 conveyor belt, a non-repairable material box is arranged at the rear end of the No. 4 conveyor belt, a second rejection port is arranged between the No. 3 conveyor belt and the No. 4 conveyor belt, a repairable material box is arranged below the second rejection port, and the second rejection port is also provided with the rejection baffle to block and prompt the repairable cardboard to fall into the repairable material box.

[0007] Optionally, a chip detection component is provided above the No. 2 conveyor belt for detecting whether a chip is implanted inside the cardboard; a No. 5 conveyor belt is provided at the rear end of the No. 2 conveyor belt, a third rejection port is provided between the No. 5 conveyor belt and the No. 2 conveyor belt, a chip-free material box is provided below the third rejection port, and the third rejection port is also provided with the rejection baffle for blocking and prompting cardboard without implanted chips to fall into the chip-free material box.

[0008] Optionally, the chip detection assembly includes a detection component, a mounting seat, a first lifting mechanism and a transverse movement mechanism, the detection component is mounted on the mounting seat, the first lifting mechanism is used to drive the mounting seat to rise and fall, and the transverse movement mechanism is used to drive the first lifting mechanism to move transversely.

[0009] Optionally, the first lifting mechanism includes a fixed seat, a first upper base, a first lower base, a first screw rod and a first guide rod, the fixed seat is connected to the transverse movement mechanism, the first upper base is arranged above the fixed seat, the first lower base is arranged below the fixed seat, the mounting seat is fixedly connected to the bottom of the first base, the first guide rod is slidably passed through the fixed seat and fixedly connected to the first upper base and the first lower base, the first screw rod is threadedly matched with the fixed seat, and is rotatably connected to the first upper base and the first lower base.

[0010] Optionally, the transverse movement mechanism includes a support seat, a second screw rod, a second guide rod and a slide. A support seat is fixedly arranged on each side of the conveyor belt. The second guide rod is fixedly connected between the two support seats. The second screw rod is rotatably connected between the two support seats. The slide can be slidably mounted on the second guide rod and cooperated with the second screw rod through a thread. The first lifting mechanism is connected to the slide.

[0011] Optionally, the defect detection component includes a support frame, a second lifting mechanism, a mounting platform and an industrial camera. The second lifting mechanism is used to drive the support frame to lift and lower. Transverse guide rails are provided on both sides of the top of the support frame. The mounting platform is provided with a plurality of mounting platforms that are slidably connected to the transverse guide rails, and an industrial camera is installed on each mounting platform.

[0012] Optionally, the second lifting mechanism includes a support frame, a third screw rod, a third guide rod, a second upper base and a second lower base. A support frame is provided on each side of the support frame. The second upper base is fixedly connected between the tops of the two support frames, the second lower base is fixedly connected between the bottoms of the two support frames, the third guide rod is fixedly connected between the second upper base and the second lower base, the third screw rod is rotatably connected between the second upper base and the second lower base, and the support frame can be slidably mounted on the third guide rod and cooperated with the third screw rod through a thread.

[0013] Optionally, one side of the support frame is fixedly connected to a side plate, a long rack is fixedly provided on the side of the side plate facing the mounting platform, a support block is provided on the mounting platform, a short rack that can engage with the long rack is elastically connected to the support block to limit the lateral position of the mounting platform.

[0014] Optionally, a coding device is provided above the No. 1 conveyor belt at the rear end of the defect detection component.

[0015] Optionally, each of the conveyor belts is composed of a plurality of sub-conveyor belts spaced apart in the width direction, a bellows is provided between adjacent sub-conveyor belts, a negative pressure hole is provided on the top of the bellows, and the bellows is connected to a negative pressure device to generate negative pressure so that the cardboard is close to the conveyor belt during the conveying process.

[0016] The technical solution of the present invention has at least the following advantages and beneficial effects: in the present invention, a No. 3 conveyor belt and a No. 4 conveyor belt are arranged below the first rejection port, a non-repairable material box is arranged at the rear end of the No. 4 conveyor belt, a second rejection port is provided between the No. 3 conveyor belt and the No. 4 conveyor belt, a repairable material box is arranged below the second rejection port, and the second rejection port is also provided with the rejection baffle to block and promote the repairable cardboard to fall into the repairable material box, so that the defective cardboard can be classified and collected into repairable defective cardboard and non-repairable defective cardboard, so as to make full use of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A front view of a packaging box cardboard visual inspection device provided by the present invention;

[0018] Figure 2 A top view of a packaging box cardboard visual inspection device provided by the present invention;

[0019] Figure 3 is a schematic diagram of the structure of the defect detection component;

[0020] Figure 4 A schematic diagram of the structure of the defect detection component behind the hidden cover;

[0021] Figure 5 This is a schematic diagram for the installation of industrial cameras;

[0022] Figure 6 It is a schematic diagram of the structure of the chip detection component;

[0023] Figure numerals: 1- No. 1 conveyor belt, 101- sub-conveyor belt, 102- bellows, 2- No. 2 conveyor belt, 3- defect detection assembly, 301- support frame, 302- mounting table, 303- industrial camera, 304- transverse guide rail, 305- side plate, 306- long rack, 307- short rack, 308- spring, 309- support block, 310- support frame, 311- third screw rod, 312- third guide rod, 313- second upper base, 314- second lower base, 315- cover, 4- chip detection assembly, 401- detection components, 402- mounting seat, 40 3-fixed seat, 404-first upper base, 405-first lower base, 406-first screw rod, 407-first guide rod, 408-second screw rod, 409-second guide rod, 410-slide, 411-support seat, 5-first rejection port, 6-rejection baffle, 7-third rejection port, 8-No. 3 conveyor belt, 9-No. 4 conveyor belt, 10-No. 5 conveyor belt, 11-coding equipment, 12-collecting cover, 13-first material guide cover, 14-second material guide cover, 15-third material guide cover, 16-repairable material box, 17-non-repairable material box, 18-chip-free material box, 19-cardboard. DETAILED DESCRIPTION

[0024] refer to Figure 1 and Figure 2 A visual inspection device for packaging box cardboard includes a conveyor belt, a defect detection component 3 is arranged above the conveyor belt, and the conveyor belt includes a No. 1 conveyor belt 1 and a No. 2 conveyor belt 2 arranged in sequence along the conveying direction. Specifically, the defect detection component 3 is arranged above the No. 1 conveyor belt 1, and a first rejection port 5 is arranged between the No. 1 conveyor belt 1 and the No. 2 conveyor belt 2. The first rejection port 5 is provided with a rejection baffle 6 that can close it. The end of the rejection baffle 6 close to the No. 2 conveyor belt 2 is rotatably connected to the first rejection port 5. When the defect detection component 3 detects that the cardboard 19 is defective, the other end of the rejection baffle 6 (i.e., the end close to the No. 1 conveyor belt 1) rotates upward to block the defective cardboard 19 from being fed into the No. 2 conveyor belt 2, and under the continuous action of the No. 1 conveyor belt 1, the defective cardboard 19 falls into the first rejection port 5. It should be understood that the width of the first rejection port 5 should be less than half of the width of the cardboard 19, so that when the rejection baffle 6 is lowered, the cardboard 19 without defects can normally cross the first rejection port 5.

[0025] In this embodiment, a chip detection component 4 is provided above the No. 2 conveyor belt 2 for detecting whether a chip is implanted inside the cardboard 19. On this basis, a No. 5 conveyor belt 10 is provided at the rear end of the No. 2 conveyor belt 2, and a third rejection port 7 is provided between the No. 5 conveyor belt 10 and the No. 2 conveyor belt 2. A chip-free material box 18 is provided below the third rejection port 7, and a rejection baffle 6 is also provided at the third rejection port 7. Similarly, when the chip detection component 4 detects that there is no chip inside the cardboard 19, the rejection baffle 6 rotates upward to prevent the chip-free cardboard 19 from being fed into the No. 5 conveyor belt 10, and under the continuous action of the No. 2 conveyor belt 2, the chip-free cardboard 19 falls into the chip-free material box 18 below the third rejection port 7.

[0026] A coding device 11 is provided above the No. 1 conveyor belt 1 at the rear end of the defect detection component 3, that is, after the cardboard 19 is detected by the defect detection component 3 and no defects are found, the coding device 11 codes the cardboard 19. As can be seen from the above, the visual inspection device provided by the present invention integrates defect detection, coding and chip presence detection, has diversified functions, and improves the efficiency of cardboard 19 detection.

[0027] In this embodiment, each conveyor belt is composed of a plurality of sub-conveyor belts 101 spaced apart along the width direction. A bellows 102 is provided between adjacent sub-conveyor belts 101. A negative pressure hole is provided on the top of the bellows 102. The bellows 102 is connected to a negative pressure device (not shown). With such a configuration, the negative pressure device generates suction through the negative pressure hole when working, so that the cardboard 19 is closely attached to the surface of the conveyor belt during transportation, thereby preventing the cardboard 19 from warping and position shifting, and improving the detection accuracy.

[0028] refer to Figure 3-Figure 5The defect detection component 3 includes a support frame 301, a second lifting mechanism, a mounting platform 302 and an industrial camera 303. The second lifting mechanism is used to drive the support frame 301 to rise and fall. Transverse guide rails 304 are provided on both sides of the top of the support frame 301. The mounting platform 302 is provided with a plurality of mounting platforms 302 and the mounting platforms 302 are slidably connected to the transverse guide rails 304. An industrial camera 303 is installed on each mounting platform 302. Specifically, in this embodiment, four industrial cameras 303 are provided, that is, there are four mounting platforms 302. Furthermore, one side of the support frame 301 is fixedly connected to the side plate 305, and a long rack 306 is fixedly arranged on the side of the side plate 305 facing the mounting platform 302. A support block 309 is arranged on the mounting platform 302, and a short rack 307 that can engage with the long rack 306 is elastically connected to the support block 309. In this way, the position of the mounting platform 302 (i.e., the lateral position of the industrial camera 303, i.e., the position in the width direction of the conveyor belt) can be adjusted, and after the position is adjusted, the position can be limited by the engagement of the short rack 307 with the long rack 306. Specifically, the short rack 307 is fixedly connected to a sliding rod, which is passed through the support block 309 and fixedly connected to a stopper at one end away from the short rack 307. A spring 308 is sleeved on the sliding rod, and the spring 308 is press-fitted between the short rack 307 and the support block 309.

[0029] As an option, the second lifting mechanism includes a support frame 310, a third screw rod 311, a third guide rod 312, a second upper base 313 and a second lower base 314. A support frame 310 is provided on each side of the support frame 301. The second upper base 313 is fixedly connected between the tops of the two support frames 310. The second lower base 314 is fixedly connected between the bottoms of the two support frames 310. The third guide rod 312 is fixedly connected between the second upper base 313 and the second lower base 314. The third screw rod 311 is rotatably connected between the second upper base 313 and the second lower base 314. The support frame 301 can be slidably mounted on the third guide rod 312 and is threadedly engaged with the third screw rod 311. It is easy to understand that in order to maintain structural stability, a third screw rod 311 is provided at both ends of the support frame 301. Furthermore, a third guide rod 312 is provided on each side of the third screw rod 311. In this way, the synchronous rotation of the two third screw rods 311 can drive the support frame 301 to move up and down. In actual applications, the rotation of the third screw rod 311 can be performed manually or by connecting a driving element (such as a motor) to achieve it.

[0030] In addition, in practical applications, a cover 315 is disposed outside the defect detection component 3 as a whole, and a light source can be disposed inside the cover 315 to ensure detection clarity. An opening (not shown) should be disposed at the top of the cover 315 to facilitate adjustment of the lateral position of the industrial camera 303.

[0031] refer to Figure 6The chip detection assembly 4 includes a detection component 401, a mounting seat 402, a first lifting mechanism and a transverse movement mechanism. The detection component 401 is mounted on the mounting seat 402. The first lifting mechanism is used to drive the mounting seat 402 to lift and lower, and the transverse movement mechanism is used to drive the first lifting mechanism to move laterally, so that the detection component 401 can be lifted and lowered and moved laterally, which is convenient for adjusting the position of the detection component 401 according to the chip implantation position. It is worth noting that the detection component 401 can be selected according to different detection methods, for example, it can be an RFID sensing antenna, which automatically identifies the presence of a chip through a radio frequency signal; or it can be a metal detector, which identifies the presence of a chip by detecting the metal part of the chip.

[0032] As an option, the first lifting mechanism of this embodiment includes a fixed seat 403, a first upper base 404, a first lower base 405, a first screw rod 406 and a first guide rod 407, the fixed seat 403 is connected to the transverse mechanism, the first upper base 404 is arranged above the fixed seat 403, the first lower base 405 is arranged below the fixed seat 403, the mounting seat 402 is fixedly connected to the bottom of the first base, and the detection component 401 is installed on the mounting seat 402; the first guide rod 407 is slidably arranged on the fixed seat 403, and is fixedly connected to the first upper base 404 and the first lower base 405, the first screw rod 406 is threadedly matched with the fixed seat 403, and is rotatably connected to the first upper base 404 and the first lower base 405. In practical applications, a knob (not shown) can be set on the top of the first screw rod 406, and by turning the knob, the first screw rod 406, the first guide rod 407, the mounting seat 402 and the detection component 401 can be driven to rise and fall as a whole. It should be understood that in order to maintain smooth lifting and lowering, a first guide rod 407 can be provided on each side of the first screw rod 406 .

[0033] On the basis of the above, the transverse movement mechanism of this embodiment includes a support seat 411, a second screw rod 408, a second guide rod 409 and a slide 410. A support seat 411 is fixedly arranged on each side of the conveyor belt, the second guide rod 409 is fixedly connected between the two support seats 411, the second screw rod 408 is rotatably connected between the two support seats 411, the slide 410 is slidably sleeved on the second guide rod 409 and is threadedly matched with the second screw rod 408, and the above-mentioned fixed seat 403 is fixedly connected with the slide 410. With such a configuration, the lifting mechanism can be driven to move horizontally as a whole by rotating the second screw rod 408, thereby adjusting the horizontal position of the detection element 401. Similarly, in order to keep the transverse movement smooth, a second guide rod 409 can be arranged on each side of the second screw rod 408. In addition, it is easy to understand that the rotation of the second screw rod 408 can be carried out manually or by a driving element (such as a motor).

[0034] Reference again Figure 1In this embodiment, a No. 3 conveyor belt 8 is provided below the rejection port, and a No. 4 conveyor belt 9 is provided at the rear end of the No. 3 conveyor belt 8. It is easy to understand that in actual applications, since the No. 3 conveyor belt 8 and the No. 4 conveyor belt 9 do not need to detect the cardboard 19, the bellows 102 may not be provided to generate suction. An irreparable material box 17 is provided at the rear end of the No. 4 conveyor belt 9 for collecting irreparable defective cardboards 19. A second rejection port is provided between the No. 3 conveyor belt 8 and the No. 4 conveyor belt 9. A repairable material box 16 is provided below the second rejection port for collecting repairable defective cardboards 19. The second rejection port is also provided with a rejection baffle 6 to block and promote the repairable cardboards 19 to fall into the repairable material box 16. In this way, the defective cardboards 19 can be classified and collected into repairable defective cardboards 19 and irreparable defective cardboards 19, so as to make full use of resources.

[0035] It should be understood that in actual applications, the defect detection component 3 detects defective cardboard 19, and the backend classifies defective cardboard 19 into repairable defective cardboard 19 and irreparable defective cardboard 19 according to the defect type. When it is determined to be a repairable defective cardboard 19, the rejection baffle 6 of the first rejection port 5 and the rejection baffle 6 of the second rejection port simultaneously rotate upward, so that the repairable defective cardboard 19 finally falls into the repairable material box 16; when it is determined to be an irreparable defective cardboard 19, only the rejection baffle 6 of the first rejection port 5 rotates upward, and the rejection baffle 6 of the second rejection port does not rotate upward, so that the irreparable defective cardboard 19 falls into the irreparable material box 17 through the No. 4 conveyor belt 9. It is easy to understand that the positions of the repairable material box 16 and the irreparable material box 17 can also be exchanged accordingly.

[0036] In addition, in order to smoothly collect defective products, a material collecting cover 12 is provided above the No. 3 conveyor belt 8 and the No. 4 conveyor belt 9, a first material guide cover 13 is provided above the repairable material box 16, a second material guide cover 14 is provided above the non-repairable material box, and a third material guide cover 15 is provided above the chip-free material box 18.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A visual inspection device for packaging box paperboard, comprising a conveyor belt, above which a defect detection component is provided, characterized in that: The conveyor belt includes a No. 1 conveyor belt and a No. 2 conveyor belt arranged in sequence along the conveying direction, the defect detection component is arranged above the No. 1 conveyor belt, a first rejection port is arranged between the No. 1 conveyor belt and the No. 2 conveyor belt, the first rejection port is provided with a rejection baffle which can close it, one end of the rejection baffle close to the No. 2 conveyor belt is rotatably connected to the first rejection port, and the other end of the rejection baffle is rotated upward to block and promote defective cardboard to fall into the first rejection port; A No. 3 conveyor belt is arranged below the rejection port, a No. 4 conveyor belt is arranged at the rear end of the No. 3 conveyor belt, a non-repairable material box is arranged at the rear end of the No. 4 conveyor belt, a second rejection port is arranged between the No. 3 conveyor belt and the No. 4 conveyor belt, a repairable material box is arranged below the second rejection port, and the second rejection port is also provided with the rejection baffle to block and prompt the repairable cardboard to fall into the repairable material box.

2. The packaging box cardboard visual inspection device according to claim 1 is characterized in that: A chip detection component is provided above the No. 2 conveyor belt for detecting whether a chip is implanted inside the cardboard; a No. 5 conveyor belt is provided at the rear end of the No. 2 conveyor belt, a third rejection port is provided between the No. 5 conveyor belt and the No. 2 conveyor belt, a chip-free material box is provided below the third rejection port, and the third rejection port is also provided with the rejection baffle for blocking and prompting cardboard without chip implantation to fall into the chip-free material box.

3. The packaging box cardboard visual inspection device according to claim 2 is characterized in that: The chip detection assembly includes a detection component, a mounting seat, a first lifting mechanism and a transverse movement mechanism. The detection component is mounted on the mounting seat. The first lifting mechanism is used to drive the mounting seat to rise and fall, and the transverse movement mechanism is used to drive the first lifting mechanism to move transversely.

4. The packaging box cardboard visual inspection device according to claim 3 is characterized in that: The first lifting mechanism includes a fixed seat, a first upper base, a first lower base, a first screw rod and a first guide rod. The fixed seat is connected to the transverse movement mechanism. The first upper base is arranged above the fixed seat, the first lower base is arranged below the fixed seat, the mounting seat is fixedly connected to the bottom of the first base, the first guide rod is slidably penetrated on the fixed seat, and is fixedly connected to the first upper base and the first lower base. The first screw rod is threadedly matched with the fixed seat and is rotatably connected to the first upper base and the first lower base.

5. The packaging box cardboard visual inspection device according to claim 3 is characterized in that: The transverse movement mechanism includes a support seat, a second screw rod, a second guide rod and a slide. A support seat is fixedly arranged on each side of the conveyor belt. The second guide rod is fixedly connected between the two support seats. The second screw rod is rotatably connected between the two support seats. The slide can be slidably mounted on the second guide rod and cooperated with the second screw rod through a thread. The first lifting mechanism is connected to the slide.

6. The packaging box cardboard visual inspection device according to claim 1 is characterized in that: The defect detection component includes a support frame, a second lifting mechanism, a mounting platform and an industrial camera. The second lifting mechanism is used to drive the support frame to rise and fall. Transverse guide rails are provided on both sides of the top of the support frame. The mounting platform is provided with a plurality of transverse guide rails and the mounting platform is slidably connected to the transverse guide rails. An industrial camera is installed on each mounting platform.

7. The packaging box cardboard visual inspection device according to claim 6 is characterized in that: The second lifting mechanism includes a support frame, a third screw rod, a third guide rod, a second upper base and a second lower base. A support frame is provided on each side of the support frame. The second upper base is fixedly connected between the tops of the two support frames, the second lower base is fixedly connected between the bottoms of the two support frames, the third guide rod is fixedly connected between the second upper base and the second lower base, the third screw rod is rotatably connected between the second upper base and the second lower base, and the support frame can be slidably mounted on the third guide rod and cooperated with the third screw rod through threads.

8. The packaging box cardboard visual inspection device according to claim 6 is characterized in that: One side of the support frame is fixedly connected to a side plate, a long rack is fixedly provided on the side of the side plate facing the mounting platform, a support block is provided on the mounting platform, and a short rack that can engage with the long rack is elastically connected to the support block to limit the lateral position of the mounting platform.

9. The packaging box cardboard visual inspection device according to any one of claims 1 to 8, characterized in that: A coding device is provided above the No. 1 conveyor belt at the rear end of the defect detection component.

10. The packaging box cardboard visual inspection device according to any one of claims 1 to 8, characterized in that: Each of the conveyor belts is composed of a number of sub-conveyor belts spaced apart in the width direction. A bellows is provided between adjacent sub-conveyor belts. A negative pressure hole is provided on the top of the bellows. The bellows is connected to a negative pressure device to generate negative pressure to keep the cardboard close to the conveyor belt during the conveying process.

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