A blocking and positioning mechanism for a packaging box visual inspection line

Abstract

The utility model discloses a kind of packaging box visual inspection line blocking positioning mechanism, including roller transmission line, first guide baffle, bottom stop mechanism, side stop mechanism, laser ranging sensor and control module, first guide baffle is fixedly installed in roller transmission line left side;Bottom stop mechanism is composed of first telescopic cylinder, first cylinder seat, first L-shaped limit plate and first guide rod;Side stop mechanism is composed of second telescopic cylinder, second guide baffle, second cylinder seat and guide wheel. Setting first guide baffle, second guide baffle can avoid packaging box from roller transmission line left and right sides to escape. By first telescopic cylinder, first cylinder seat control first L-shaped limit plate, L-shaped blocking structure is close to packaging box, respectively to the bottom and its right side middle upper portion position of packaging box are stopped and positioned, effectively avoid the problem that packaging box is stopped and slowed down and dumps.

Description

Technical Field

[0001] This utility model belongs to the field of packaging box technology, and in particular relates to a visual inspection line blocking and positioning mechanism for packaging boxes. Background Technology

[0002] Automated visual inspection offers advantages over manual inspection, including higher efficiency, speed, precision, stability, and quantifiability and data quantification. It primarily detects printing misalignments, color differences, and text / pattern errors on packaging boxes. After the packaging box moves to the visual inspection station via a roller conveyor, it is stopped and limited by a stop mechanism along the conveyor. For packaging boxes exceeding 1 meter in size, due to their high center of gravity, relying solely on the bottom stop mechanism can easily lead to tipping. Furthermore, setting the bottom stop plate too high results in a large stroke of the telescopic cylinder, causing a slow response speed. Therefore, this affects the continuity of visual inspection, leading to low inspection efficiency and the risk of packaging boxes tipping over and falling, causing damage. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a visual detection line blocking positioning mechanism that stops and limits the bottom and upper middle part of the packaging box to prevent it from tipping over when stopped.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a visual inspection line blocking and positioning mechanism for packaging boxes, including a roller conveyor line, a first guide baffle, a bottom stop mechanism, a side stop mechanism, a laser range sensor and a control module, wherein the first guide baffle is fixedly installed on the left side of the roller conveyor line; The bottom stop mechanism consists of a first telescopic cylinder, a first cylinder seat, a first L-shaped limiting plate, and a first guide rod. The first cylinder seat is fixedly installed on the frame of the roller conveyor line. The cylinder body of the first telescopic cylinder is fixedly installed on the first cylinder seat. The first guide rod is slidably installed on the first cylinder seat. The first L-shaped limiting plate is fixedly installed on the piston rod and the first guide rod of the first telescopic cylinder. The laser rangefinder is fixedly mounted on the first cylinder base, and the laser emission end of the laser rangefinder is set upwards. The side stop mechanism consists of a second telescopic cylinder, a second guide baffle, a second cylinder seat, and a guide wheel. The second cylinder seat is fixedly installed on the right side of the roller conveyor frame. The cylinder body of the second telescopic cylinder is horizontally fixedly installed on the second cylinder seat. The second guide baffle is fixedly installed on the piston rod of the second telescopic cylinder. The left end of the second guide baffle is set as an L-shaped blocking structure, and the right end of the second guide baffle is set as an outwardly folding guide structure. The guide wheel is rotatably installed on the L-shaped blocking structure through a rotating shaft.

[0005] Preferably, a rubber protective sleeve is fixedly installed on the guide wheel.

[0006] Preferably, a column is fixedly installed on the roller conveyor line, and a locking block is fixedly installed on the first guide baffle. The locking block is sleeved and locked onto the column.

[0007] Preferably, the first cylinder seat has elongated holes at both ends, and the first cylinder seat is screwed and fixedly installed on both sides of the frame of the roller conveyor line through its elongated holes.

[0008] Preferably, a guide sleeve is fixedly installed on the first cylinder seat, and the first guide rod is slidably installed inside the guide sleeve.

[0009] Compared with the prior art, the advantages of this utility model are: the first guide baffle and the second guide baffle can prevent the packaging box from detaching from the left and right sides of the roller conveyor line. The first telescopic cylinder and the first cylinder seat control the first L-shaped limiting plate and the L-shaped blocking structure to move closer to the packaging box, respectively stopping and limiting the bottom and upper right side of the packaging box, effectively preventing the packaging box from being slowed down and tipping over, thus improving the stability of the visual inspection line and the efficiency of visual inspection. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings.

[0011] Figure 1 This is the front view of this utility model.

[0012] Figure 2 This is a top view of the present invention.

[0013] Figure 3 yes Figure 2 Enlarged structural diagram at point M.

[0014] Figure 4 This is a 3D view of the bottom stop mechanism. Detailed Implementation

[0015] The present invention will now be described in detail with reference to specific embodiments: like Figures 1 to 4 The packaging box visual inspection line blocking and positioning mechanism shown includes a roller conveyor line 1, a first guide baffle 2, a bottom stop mechanism, a side stop mechanism, a laser range sensor 6 and a control module. The first guide baffle 2 is fixedly installed on the left side of the roller conveyor line 1. The bottom stop mechanism consists of a first telescopic cylinder 3, a first cylinder seat 4, a first L-shaped limiting plate 5, and a first guide rod 51. The first cylinder seat 4 is fixedly installed on the frame of the roller conveyor line 1. The cylinder body of the first telescopic cylinder 3 is fixedly installed on the first cylinder seat 4. The first guide rod 51 is slidably installed on the first cylinder seat 4. The first L-shaped limiting plate 5 is fixedly installed on the piston rod of the first telescopic cylinder 3 and the first guide rod 51. The laser rangefinder 6 is fixedly mounted on the first cylinder base 4, and the laser emission end of the laser rangefinder 6 is set upwards. The side stop mechanism consists of a second telescopic cylinder 8, a second guide baffle 9, a second cylinder seat, and a guide wheel 93. The second cylinder seat is fixedly installed on the right side of the frame of the roller conveyor line 1. The second telescopic cylinder 8 has a second guide rod to ensure that its piston rod does not rotate during reciprocating motion. The cylinder body is horizontally fixedly installed on the second cylinder seat. The second guide baffle 9 is fixedly installed on the piston rod of the second telescopic cylinder 8. The left end of the second guide baffle 9 is set as an L-shaped blocking structure 92, and the right end of the second guide baffle 9 is set as an outwardly folding guide structure 91. The guide wheel 93 is rotatably installed on the L-shaped blocking structure 92 through a rotating shaft.

[0016] The first telescopic cylinder 3 and the second telescopic cylinder 8 are connected to the air pressure station through pipelines and solenoid valves, respectively. The solenoid valve, roller transmission line 1, and laser rangefinder sensor 6 are connected to the control module through circuits.

[0017] The guide wheel 93 rolls in contact with the packaging box 10 to prevent the L-shaped blocking structure 92 from sliding in contact with the packaging box 10 and causing wear and scratches. A rubber protective sleeve is fixedly installed on the guide wheel 93 to prevent the guide wheel 93 from scratching the surface of the packaging box.

[0018] A column 20 is fixedly installed on the roller conveyor line 1, and a locking block 21 is fixedly installed on the first guide baffle 2. The locking block 21 is sleeved and locked on the column 20. The installation height of the first guide baffle 2 can be adjusted by adjusting the installation height of the locking block 21 on the column 20.

[0019] The first cylinder seat 4 has elongated holes 41 at both ends. The first cylinder seat 4 is screwed and fixedly installed on both sides of the frame of the roller conveyor line 1 through its elongated holes 41. A guide sleeve 52 is fixedly installed on the first cylinder seat 4, and the first guide rod 51 is slidably installed in the guide sleeve 52 to improve the straightness of the up and down movement of the first guide rod 51 and the first L-shaped limiting plate 5 and avoid jamming problems.

[0020] Facing the flow direction of the roller conveyor line 1, the left and right directions of the packaging box 10 are determined. The drive roller 11 of the roller conveyor line 1 rotates under the action of its drive mechanism. The packaging box 10 is placed on the drive roller 11 and moved to the left. When the laser rangefinder 6 detects the packaging box 10 (the laser rangefinder 6 transmits and receives laser signals through the middle area of ​​the two drive rollers 11 without being blocked), it sends a signal to the control module. The control module controls the piston rods of the first telescopic cylinder 3 and the second telescopic cylinder 8 to extend. The piston rod of the first telescopic cylinder 3 pushes the first L-shaped limiting plate 5 through the two drive rollers 11 (the first L-shaped limiting plate 5 does not contact or interfere with the drive rollers 11) and moves upward. The top of the first L-shaped limiting plate 5 extends 3-5 cm beyond the bottom surface of the packaging box 10, limiting the bottom of the packaging box 10. The piston rod of the second telescopic cylinder 8 pushes the second guide baffle 9 closer to the packaging box 10, but does not contact it. First, the L-shaped blocking structure 92 of the second guide baffle 9 extends 5-10cm beyond the right end face of the packaging box 10, limiting the packaging box 10. After the packaging box 10 contacts and is limited by the first L-shaped limiting plate 5 and the L-shaped blocking structure 92, the roller conveyor line 1 stops running. The vision inspection mechanism on the automated robotic arm performs visual inspection on the packaging box 10 to check whether the barcode, QR code, logo, text, and pattern are printed in the designated positions, and to check for color difference, missing prints, and uneven color. After the inspection is completed, the first telescopic cylinder 3 and the second telescopic cylinder 8 drive the first L-shaped limiting plate 5 and the L-shaped blocking structure 92 to retract, and start the roller conveyor line 1 to continue moving the packaging box forward.

Claims

1. A visual inspection line blocking and positioning mechanism for packaging boxes, characterized in that: It includes a roller conveyor line (1), a first guide baffle (2), a bottom stop mechanism, a side stop mechanism, a laser rangefinder sensor (6), and a control module. The first guide baffle (2) is fixedly installed on the left side of the roller conveyor line (1). The bottom stop mechanism consists of a first telescopic cylinder (3), a first cylinder seat (4), a first L-shaped limiting plate (5) and a first guide rod (51). The first cylinder seat (4) is fixedly installed on the frame of the roller conveyor line (1). The cylinder body of the first telescopic cylinder (3) is fixedly installed on the first cylinder seat (4). The first guide rod (51) is slidably installed on the first cylinder seat (4). The first L-shaped limiting plate (5) is fixedly installed on the piston rod of the first telescopic cylinder (3) and the first guide rod (51). The laser rangefinder (6) is fixedly mounted on the first cylinder seat (4), and the laser emission end of the laser rangefinder (6) is set upward; The side stop mechanism consists of a second telescopic cylinder (8), a second guide baffle (9), a second cylinder seat, and a guide wheel (93). The second cylinder seat is fixedly installed on the right side of the frame of the roller conveyor line (1). The cylinder body of the second telescopic cylinder (8) is horizontally fixedly installed on the second cylinder seat. The second guide baffle (9) is fixedly installed on the piston rod of the second telescopic cylinder (8). The left end of the second guide baffle (9) is set as an L-shaped blocking structure (92), and the right end of the second guide baffle (9) is set as an outwardly folding guide structure (91). The guide wheel (93) is rotatably installed on the L-shaped blocking structure (92) through a rotating shaft.

2. The packaging box visual inspection line blocking and positioning mechanism according to claim 1, characterized in that: A rubber protective sleeve is fixedly installed on the guide wheel (93).

3. The packaging box visual inspection line blocking and positioning mechanism according to claim 1, characterized in that: A column (20) is fixedly installed on the roller conveyor line (1), and a locking block (21) is fixedly installed on the first guide baffle (2). The locking block (21) is sleeved and locked on the column (20).

4. The packaging box visual inspection line blocking and positioning mechanism according to claim 1, characterized in that: The first cylinder seat (4) has elongated holes (41) at both ends. The first cylinder seat (4) is screwed and fixed on both sides of the frame of the roller conveyor line (1) through its elongated holes (41).

5. The packaging box visual inspection line blocking and positioning mechanism according to claim 1, characterized in that: A guide sleeve (52) is fixedly installed on the first cylinder seat (4), and the first guide rod (51) is slidably installed inside the guide sleeve (52).

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