Packaging box appearance detection equipment

Abstract

The utility model provides packaging box appearance detection equipment, relates to the technical field of detection equipment, and aims to solve the problem of high labor intensity of a packaging box appearance detection mode. Comprising a rack, a conveying device, a four-axis robot and a waste box collecting device, the conveying device, the four-axis robot and the waste box collecting device are installed on the rack, the conveying device is used for driving a packaging box to flow in the first direction, and the packaging box is provided with an upper surface, a lower surface and four side faces; the rack is provided with a first detection position located in a circulation path of the packaging box and a second detection position located in the lateral direction of the conveying device, a vacuum suction cup is installed on a rotating shaft at the tail end of the four-axis robot, and a first visual assembly is installed on a machine shell of the four-axis robot and used for detecting the upper surface; the second detection position is provided with a second visual assembly and a third visual assembly, the second visual assembly is used for detecting the lower surface, and the third visual assembly is used for detecting the four side faces. The automatic detection of the appearance of the packaging box can be realized, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a packaging box appearance detection device. Background Art

[0002] Usually, after the product is produced, it needs to be packaged in a packaging box. However, after the packaging box is produced, it may have quality defects such as partial wrinkles or damage. Therefore, it is necessary to inspect the appearance of the packaging box to confirm whether there are any defects in the packaging box.

[0003] At present, the appearance of packaging boxes is mainly inspected through manual observation, which is not only labor-intensive but also makes some defects difficult to be discovered. Utility Model Content

[0004] The utility model aims to provide a packaging box appearance detection device to solve the technical problem that the existing method of detecting the appearance of the packaging box by manual observation has high labor intensity.

[0005] The utility model provides a packaging box appearance detection device, including a frame and a conveying device, a four-axis robot and a waste box collection device all installed on the frame, wherein the conveying device is used to drive the packaging box to flow along a first direction, and the packaging box has an upper surface, a lower surface and four side surfaces; the frame is provided with a first detection position located on the flow path of the packaging box and a second detection position located on the side of the conveying device, the end rotating shaft of the four-axis robot is installed with a vacuum suction cup, and the housing of the four-axis robot is installed with a first visual component, the first visual component is used to detect the upper surface, the four-axis robot can drive the packaging box to move from the first detection position to the second detection position, and drive the packaging box to rotate around a vertical axis, and drive the packaging box to move from the second detection position to the conveying device or the waste box collection device; the second detection position is provided with a second visual component and a third visual component, the second visual component is used to detect the lower surface, and the third visual component is used to detect the four side surfaces during the process of the four-axis robot driving the packaging box to rotate.

[0006] Furthermore, the first detection position is provided with two first bar light sources, and the two first bar light sources are opposite to each other along the second direction, wherein the two first bar light sources are rotatably and adjustably arranged on the frame, and the rotation axes of the two first bar light sources are parallel to the first direction.

[0007] Furthermore, each of the first bar light sources is mounted on the frame through a first U-shaped bracket, and the first U-shaped bracket includes a first left end plate, a first connecting plate and a first right end plate connected in sequence, wherein the first left end plate is opposite to the first right end plate along the first direction, the first bar light source is located between the first left end plate and the first right end plate, and two ends of the first bar light source are respectively pivotally connected to the first left end plate and the first right end plate; both ends of the first bar light source are provided with a first fixing hole, and both the first left end plate and the first right end plate are provided with a first arc-shaped long strip hole, the first arc-shaped long strip hole is opposite to the first fixing hole corresponding to the end of the first bar light source, and the first threaded connector can pass through the first arc-shaped long strip hole and be screwed on the corresponding first fixing hole to fix the first bar light source and the first U-shaped bracket.

[0008] Furthermore, the second detection position is provided with an L-shaped mounting frame, the L-shaped mounting frame includes a horizontal section and a vertical section, wherein the opening of the L-shaped mounting frame faces the conveying device; the second visual component is installed on the horizontal section, and the third visual component is installed on the vertical section.

[0009] Further, the horizontal section is provided with two second bar-shaped light sources, the two second bar-shaped light sources are opposite to each other along the second direction, and the second visual component is located between the two second bar-shaped light sources, wherein the two second bar-shaped light sources are both rotatably adjustable and arranged on the horizontal section, and the rotation axes of the two second bar-shaped light sources are parallel to the first direction;

[0010] The vertical section is provided with two third bar light sources, and the two third bar light sources are opposite to each other in the up and down direction. The third visual component is located between the two third bar light sources, wherein the two third bar light sources can be rotatably adjusted in the vertical section, and the rotation axes of the two third bar light sources are parallel to the first direction.

[0011] Further, the second bar light source is installed on the horizontal section through a second U-shaped bracket, and the second U-shaped bracket includes a second left end plate, a second connecting plate, and a second right end plate connected in sequence, wherein the second left end plate and the second right end plate are opposite to each other along the first direction, the second bar light source is located between the second left end plate and the second right end plate, and two ends of the second bar light source are respectively pivotally connected to the second left end plate and the second right end plate; second fixing holes are provided at both ends of the second bar light source, and second arc-shaped long strip holes are provided at both ends of the second bar light source, and the second arc-shaped long strip holes are opposite to the second fixing holes corresponding to the ends of the second bar light source, and the second threaded connector can pass through the second arc-shaped long strip holes and be screwed on the corresponding second fixing holes to fix the second bar light source and the second U-shaped bracket;

[0012] The third bar light source is installed in the vertical section through a third U-shaped bracket, and the third U-shaped bracket includes a third left end plate, a third connecting plate and a third right end plate connected in sequence, wherein the third left end plate is opposite to the third right end plate along the first direction, the third bar light source is located between the third left end plate and the third right end plate, and two ends of the third bar light source are respectively pivotally connected to the third left end plate and the third right end plate; third fixing holes are provided at both ends of the third bar light source, and both the third left end plate and the third right end plate are provided with third arc-shaped long strip holes, and the third arc-shaped long strip holes are opposite to the third fixing holes corresponding to the ends of the third bar light source, and the third threaded connecting piece can pass through the third arc-shaped long strip hole and be screwed on the corresponding third fixing hole to fix the third bar light source and the third U-shaped bracket.

[0013] Furthermore, the waste box collection device includes a cache conveyor belt, a first pulley, a second pulley, a driving motor, a discharge sensor and a full-material sensor, wherein the first pulley and the second pulley are rotatably arranged on the frame, and the first pulley and the second pulley are parallel and spaced along the first direction, and the cache conveyor belt covers and supports the first pulley and the second pulley; the driving motor is drivingly connected to the first pulley or the second pulley; the discharge sensor is arranged at the entrance position of the cache conveyor belt, the full-material sensor is arranged at the exit position of the cache conveyor belt, and the discharge sensor is electrically connected to the driving motor; the packaging box appearance detection equipment also includes an alarm device, and the full-material sensor is electrically connected to the alarm device.

[0014] Furthermore, the waste box collecting device also includes a first guide bar and a second guide bar, the first guide bar and the second guide bar both extend along the first direction and are respectively arranged on both sides of the cache conveyor belt, for guiding the movement of the packaging box; and / or, the waste box collecting device also includes a material baffle plate, the material baffle plate is fixedly arranged at the exit position of the cache conveyor belt, for preventing the packaging box from falling from the exit position of the cache conveyor belt.

[0015] Furthermore, the first detection position is provided with a limit component and a lifting component, the limit component is used to prevent the packaging box from continuing to move forward when the packaging box flows to the first detection position; the lifting component is used to push the packaging box away from the conveying device when the packaging box flows to the first detection position, and to drop the packaging box to the conveying device after the detection is completed.

[0016] Furthermore, the frame is also provided with a flipping station, which is arranged downstream of the first detection position. The flipping station is provided with a flipping assembly, which is used to drive the packaging box in the flipping station to flip 180°, wherein the flipping assembly includes a lifting drive member, a flipping drive member, a flipping shaft and an insertion plate fixedly arranged on the flipping shaft, the lifting drive member is installed on the frame, the output end of the lifting drive member is fixedly connected to the flipping drive member, the flipping shaft is fixedly connected to the output end of the flipping drive member, and the axis of the flipping shaft is parallel to the second direction; the insertion plate is provided with a socket for inserting the packaging box.

[0017] The beneficial effects brought by the packaging box appearance detection equipment of the utility model are:

[0018] By setting up a packaging box appearance inspection device mainly composed of a frame, a conveying device, a four-axis robot and a waste box collection device, when the appearance of the packaging box needs to be inspected, the packaging box can be placed on the conveying device, and the conveying device is used to drive the packaging box to flow along the first direction. When the packaging box flows to the first inspection position, the four-axis robot together with the first visual component and the vacuum suction cup installed thereon moves to the top of the first inspection position, and the first visual component is used to inspect the upper surface of the packaging box, wherein, when the first visual component detects that the upper surface is qualified, the vacuum suction cup will be used to absorb the packaging box and transport it to the second inspection position; when the first visual component detects that the upper surface is unqualified, the vacuum suction cup will be used to absorb the packaging box and transport it to the waste box collection device for caching.

[0019] For the packaging box transferred to the second inspection position, the second visual component inspects the lower surface, and in the process, the end shaft of the four-axis robot is rotated to use the third visual component to inspect the four sides of the packaging box. When the second and third visual components detect that the lower surface and the four sides are qualified, the packaging box will be driven to be transferred to the conveying device, and the conveying device will continue to drive its circulation; when the second or third visual component detects that the lower surface or any side of the packaging box is unqualified, the packaging box will be driven to be transferred to the waste box collection device for caching.

[0020] The packaging box appearance inspection device can realize automatic inspection of the packaging box appearance. The entire inspection process basically does not require human participation, thereby effectively reducing labor intensity and well solving the problems existing in the prior art. Moreover, this method of using multiple sets of visual components to inspect the appearance of the packaging box can realize all-round inspection of the packaging box appearance, making it easy to promptly discover defects in the appearance of the packaging box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0022] Figure 1 One of the structural schematic diagrams of the packaging box appearance inspection device provided by the embodiment of the utility model;

[0023] Figure 2 for Figure 1 A magnified view of the local structure at point A in the middle;

[0024] Figure 3 One of the partial schematic diagrams of the packaging box appearance inspection device provided by the embodiment of the utility model;

[0025] Figure 4 A second partial schematic diagram of a packaging box appearance inspection device provided by an embodiment of the utility model;

[0026] Figure 5 A second structural diagram of a packaging box appearance inspection device provided by an embodiment of the utility model;

[0027] Figure 6 for Figure 5 A magnified view of the local structure at B in the middle;

[0028] Figure 7A schematic diagram of the structure of a waste box collecting device of a packaging box appearance inspection device provided by an embodiment of the utility model;

[0029] Figure 8 A schematic structural diagram of a limit assembly and a lifting assembly of a packaging box appearance inspection device provided in an embodiment of the utility model.

[0030] Description of reference numerals:

[0031] 100-frame; 200-conveying device; 300-four-axis robot; 400-waste box collection device; 500-packaging box; 600-first visual component; 700-second visual component; 800-third visual component; 900-L-shaped mounting frame;

[0032] 110-first strip light source; 111-first fixing hole; 120-first U-shaped bracket; 121-first left end plate; 122-first connecting plate; 123-first right end plate; 124-first arc-shaped long strip hole; 130-limiting assembly; 131-limiting block; 132-limiting cylinder; 140-lifting assembly; 141-lifting cylinder; 142-fixing plate; 143-supporting plate; 144-fixing suction cup; 150-turning assembly; 151-lifting drive member; 152-turning drive member; 153-turning shaft; 154-insertion plate; 1541-socket; 155-turning suction cup;

[0033] 210-first conveyor belt; 220-second conveyor belt;

[0034] 310-end rotating shaft; 320-vacuum suction cup;

[0035] 410-buffer conveyor belt; 420-first pulley; 430-second pulley; 440-drive motor; 450-discharging sensor; 460-full sensor; 470-first guide bar; 480-second guide bar; 490-blocking plate;

[0036] 510-upper surface; 520-lower surface; 530-side surface;

[0037] 910-horizontal section; 920-vertical section; 930-second strip light source; 931-second fixing hole; 940-third strip light source; 941-third fixing hole; 950-second U-shaped bracket; 951-second left end plate; 952-second connecting plate; 953-second right end plate; 954-second arc-shaped long hole; 960-third U-shaped bracket; 961-third left end plate; 962-third connecting plate; 963-third right end plate; 964-third arc-shaped long hole. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0039] Figure 1 This is one of the structural schematic diagrams of the packaging box appearance inspection device provided in this embodiment. Figure 2 for Figure 1 A magnified view of the local structure at point A. Figure 1 and Figure 2 As shown, this embodiment provides a packaging box appearance inspection device, including a frame 100 and a conveying device 200, a four-axis robot 300 and a waste box collecting device 400 all installed on the frame 100, wherein the conveying device 200 is used to drive the packaging box 500 to flow along a first direction, and the packaging box 500 has an upper surface 510, a lower surface 520 and four side surfaces 530; the frame 100 is provided with a first inspection position located on the flow path of the packaging box 500 and a second inspection position located on the side of the conveying device 200, the end shaft 310 of the four-axis robot 300 is installed with a vacuum suction cup 320, and the housing of the four-axis robot 300 is provided with a vacuum suction cup 320. A first visual component 600 is provided, and the first visual component 600 is used to detect the upper surface 510. The four-axis robot 300 can drive the packaging box 500 to move from the first detection position to the second detection position, and drive the packaging box 500 to rotate around the vertical axis, and drive the packaging box 500 to move from the second detection position to the conveying device 200 or the waste box collection device 400; the second detection position is provided with a second visual component 700 and a third visual component 800, and the second visual component 700 is used to detect the lower surface 520, and the third visual component 800 is used to detect the four side surfaces 530 when the four-axis robot 300 drives the packaging box 500 to rotate.

[0040] When it is necessary to inspect the appearance of the packaging box 500, the packaging box 500 can be placed on the conveying device 200, and the conveying device 200 is used to drive the packaging box 500 to flow along the first direction. When the packaging box 500 flows to the first inspection position, the four-axis robot 300 together with the first visual component 600 and the vacuum suction cup 320 installed thereon moves to the top of the first inspection position, and the first visual component 600 is used to inspect the upper surface 510 of the packaging box 500, wherein, when the first visual component 600 detects that the upper surface 510 is qualified, the vacuum suction cup 320 will be used to absorb the packaging box 500 and transfer it to the second inspection position; when the first visual component 600 detects that the upper surface 510 is unqualified, the vacuum suction cup 320 will be used to absorb the packaging box 500 and transfer it to the waste box collection device 400 for caching.

[0041] For the packaging box 500 transferred to the second inspection position, the second visual component 700 inspects the lower surface 520, and in the process, the end shaft 310 of the four-axis robot 300 is rotated to use the third visual component 800 to inspect the four side surfaces 530 of the packaging box 500. When the second visual component 700 and the third visual component 800 detect that the lower surface 520 and the four side surfaces 530 are qualified, the packaging box 500 will be driven to be transferred to the conveying device 200, so that the conveying device 200 continues to drive its circulation; when the second visual component 700 or the third visual component 800 detects that the lower surface 520 or any side surface 530 of the packaging box 500 is unqualified, the packaging box 500 will be driven to be transferred to the waste box collection device 400 for buffering.

[0042] The packaging box appearance inspection device can realize automatic inspection of the appearance of the packaging box 500. The entire inspection process basically does not require human participation, thereby effectively reducing labor intensity and well solving the problems existing in the prior art. Moreover, this method of using multiple sets of visual components to inspect the appearance of the packaging box 500 can realize all-round inspection of the appearance of the packaging box 500, which is convenient for timely discovery of defects in the appearance of the packaging box 500.

[0043] It should be noted that Figure 2 The direction indicated by the arrows ab in the middle represents the first direction. Figure 2 The direction indicated by the arrow cd represents the second direction.

[0044] Figure 3 This is one of the partial schematic diagrams of the packaging box appearance inspection device provided in this embodiment. Please continue to refer to Figure 2 , and combined with Figure 3 In this embodiment, the conveying device 200 includes a first conveyor belt 210 and a second conveyor belt 220 arranged relatively to each other along the second direction, wherein the first conveyor belt 210 and the second conveyor belt 220 are both rotatably arranged on the frame 100 through a support frame, and are used to drive the packaging box 500 to circulate; the first visual component 600 is located between the first conveyor belt 210 and the second conveyor belt 220.

[0045] It should be noted that, in this embodiment, the design of the power mechanism of both the first conveyor belt 210 and the second conveyor belt 220 can refer to the prior art, and this embodiment does not make any improvements thereto, so it will not be described in detail.

[0046] Please continue to refer to Figure 2 and Figure 3 In this embodiment, two first bar light sources 110 are provided at the first detection position, and the two first bar light sources 110 are opposite to each other along the second direction, wherein the two first bar light sources 110 are both rotatably and adjustably provided on the frame 100, and the rotation axes of the two first bar light sources 110 are parallel to the first direction.

[0047] By arranging two first strip light sources 110 opposite to each other along the second direction at the first detection position, the brightness of the first detection position is ensured, so that the first visual component 600 can clearly collect information of the upper surface 510 of the packaging box 500 to ensure the accuracy of the appearance detection of the upper surface 510.

[0048] In addition, by setting the two first strip light sources 110 to be rotatable and adjustable along a rotation axis parallel to the first direction, the staff can adjust the angle of the first strip light source 110 according to the size of the packaging box 500, so that the first strip light source 110 can be aligned with the packaging box 500 in the first detection position, thereby ensuring the adaptability of the first strip light source 110 to packaging boxes 500 of various sizes.

[0049] It should be noted that, in this embodiment, the frame 100 is a general concept, which refers to a fixed component in the packaging box appearance inspection device. The first strip light source 110 is installed on the frame 100 through the first U-shaped bracket 120, which is actually fixedly connected to the support frame of the conveying device 200. Since the support frame is also a fixed component, it can be considered that the first strip light source 110 is installed on the frame 100. Similarly, the description of the installation of each component mentioned later on the frame 100 can be specifically understood in conjunction with the structure shown in the accompanying drawings.

[0050] Please continue to refer to Figure 2 In this embodiment, each first bar light source 110 is mounted on the frame 100 through a first U-shaped bracket 120, and the first U-shaped bracket 120 includes a first left end plate 121, a first connecting plate 122, and a first right end plate 123 that are sequentially connected, wherein the first left end plate 121 and the first right end plate 123 are opposite to each other along a first direction, and the first bar light source 110 is located between the first left end plate 121 and the first right end plate 123, and the two ends of the first bar light source 110 are respectively pivotally connected to the first left end plate 121 and the first right end plate 123. End plate 123; both ends of the first bar light source 110 are provided with first fixing holes 111, and both the first left end plate 121 and the first right end plate 123 are provided with first arc-shaped long holes 124, and the first arc-shaped long holes 124 are opposite to the first fixing holes 111 corresponding to the ends of the first bar light source 110, and the first threaded connector (not shown in the figure) can pass through the first arc-shaped long holes 124 and be screwed on the corresponding first fixing holes 111 to fix the first bar light source 110 and the first U-shaped bracket 120.

[0051] When the angle of the first bar light source 110 needs to be adjusted, the first threaded connector can be loosened to release the fastening connection between the first bar light source 110 and the first U-shaped bracket 120; then, the first bar light source 110 is rotated relative to the first left end plate 121 and the first right end plate 123. During this process, the first threaded connector slides in the first arc-shaped long hole 124 for guidance; when the first bar light source 110 is rotated to a desired angle, the first threaded connector is tightened to fix the first bar light source 110 between the first left end plate 121 and the first right end plate 123, thereby ensuring the installation stability of the first bar light source 110.

[0052] This installation and rotation adjustment method of the first strip-shaped light source 110 can achieve the fixation of the first strip-shaped light source 110 at any angle within a certain angle range, and the adjustment accuracy is relatively high.

[0053] Figure 4 This is the second partial schematic diagram of the packaging box appearance inspection device provided in this embodiment. Please continue to refer to Figure 1 , and combined with Figure 4 In this embodiment, an L-shaped mounting frame 900 is provided at the second detection position. Specifically, the L-shaped mounting frame 900 includes a horizontal section 910 and a vertical section 920, wherein the opening of the L-shaped mounting frame 900 faces the conveying device 200; the second visual component 700 is installed on the horizontal section 910, and the third visual component 800 is installed on the vertical section 920.

[0054] After the packaging box 500 completes the inspection of the upper surface 510 at the first inspection position, it will be sucked to the L-shaped mounting frame 900 by the vacuum suction cup 320 of the four-axis robot 300, and the lower surface 520 will be inspected by the second visual component 700 arranged in the horizontal section 910. In addition, the end shaft 310 of the four-axis robot 300 rotates to drive the packaging box 500 to rotate around the vertical axis, so as to utilize the third visual component 800 arranged in the vertical section 920 to realize the appearance inspection of the four side surfaces 530 of the packaging box 500.

[0055] The setting of the above-mentioned L-shaped mounting frame 900 can not only realize the reliable fixation of the second visual component 700 and the third visual component 800, but also, by facing the opening of the L-shaped mounting frame 900 towards the conveying device 200, there is no obstruction in the process of the four-axis robot 300 driving the packaging box 500 to the second detection position and transferring the packaging box 500 from the second detection position, thereby avoiding collision interference during the transportation of the packaging box 500.

[0056] Please continue to refer to Figure 4 In this embodiment, the L-shaped mounting frame 900 is mainly composed of a plurality of aluminum alloy profiles. This arrangement can reduce the weight of the L-shaped mounting frame 900 and simplify the structure of the L-shaped mounting frame 900.

[0057] Please continue to refer to Figure 4 In this embodiment, the horizontal section 910 is provided with two second bar light sources 930, the two second bar light sources 930 are opposite to each other along the second direction, and the second visual component 700 is located between the two second bar light sources 930, wherein the two second bar light sources 930 are both rotatably and adjustablely arranged on the horizontal section 910, and the rotation axes of the two second bar light sources 930 are parallel to the first direction; the vertical section 920 is provided with two third bar light sources 940, the two third bar light sources 940 are opposite to each other along the up-down direction, and the third visual component 800 is located between the two third bar light sources 940, wherein the two third bar light sources 940 are both rotatably and adjustablely arranged on the vertical section 920, and the rotation axes of the two third bar light sources 940 are parallel to the first direction.

[0058] By arranging the second strip light source 930 on both sides of the second visual component 700 and the third strip light source 940 on both sides of the third visual component 800, the brightness around the second visual component 700 and the third visual component 800 can be ensured, so that the second visual component 700 can clearly collect information of the lower surface 520 of the packaging box 500, and the third visual component 800 can clearly collect information of the four side surfaces 530 of the packaging box 500, so as to ensure the accuracy of the appearance detection of the lower surface 520 and the four side surfaces 530.

[0059] In addition, by arranging the two second bar light sources 930 and the two third bar light sources 940 to be rotatable and adjustable along a rotation axis parallel to the first direction, the staff can adjust the angles of the second bar light sources 930 and the third bar light sources 940 according to the size of the packaging box 500, so that the second bar light sources 930 and the third bar light sources 940 can both be aligned with the packaging box 500 in the second detection position, thereby ensuring the adaptability of the second bar light sources 930 and the third bar light sources 940 to packaging boxes 500 of various sizes.

[0060] Please continue to refer to Figure 4In this embodiment, the second strip light source 930 is installed on the horizontal section 910 through the second U-shaped bracket 950, and the second U-shaped bracket 950 includes a second left end plate 951, a second connecting plate 952, and a second right end plate 953 connected in sequence, wherein the second left end plate 951 and the second right end plate 953 are opposite to each other along the first direction, and the second strip light source 930 is located between the second left end plate 951 and the second right end plate 953, and the two ends of the second strip light source 930 are respectively pivotally connected to the second left end plate 951 and the second right end plate 953. Plate 953; second fixing holes 931 are provided at both ends of the second strip light source 930, and second arc-shaped long holes 954 are provided on both the second left end plate 951 and the second right end plate 953. The second arc-shaped long holes 954 are opposite to the corresponding second fixing holes 931 at the ends of the second strip light source 930, and a second threaded connector (not shown in the figure) can pass through the second arc-shaped long holes 954 and be screwed on the corresponding second fixing holes 931 to fix the second strip light source 930 and the second U-shaped bracket 950.

[0061] When it is necessary to adjust the angle of the second bar light source 930, the second threaded connector can be loosened to release the fastening connection between the second bar light source 930 and the second U-shaped bracket 950; thereafter, the second bar light source 930 is rotated relative to the second left end plate 951 and the second right end plate 953. During this process, the second threaded connector slides in the second arc-shaped long hole 954 for guidance; when the second bar light source 930 is rotated to the desired angle, the second threaded connector is tightened to fix the second bar light source 930 between the second left end plate 951 and the second right end plate 953, thereby ensuring the installation stability of the second bar light source 930.

[0062] This installation and rotation adjustment method of the second strip-shaped light source 930 can achieve the fixation of the second strip-shaped light source 930 at any angle within a certain angle range, and the adjustment accuracy is relatively high.

[0063] Please continue to refer to Figure 4In this embodiment, similarly, the third strip light source 940 is installed on the vertical section 920 through the third U-shaped bracket 960, and the third U-shaped bracket 960 includes a third left end plate 961, a third connecting plate 962 and a third right end plate 963 connected in sequence, wherein the third left end plate 961 and the third right end plate 963 are opposite to each other along the first direction, the third strip light source 940 is located between the third left end plate 961 and the third right end plate 963, and both ends of the third strip light source 940 are respectively pivotally connected to the third left end plate 96 1 and the third right end plate 963; both ends of the third bar light source 940 are provided with third fixing holes 941, and both the third left end plate 961 and the third right end plate 963 are provided with third arc-shaped long holes 964, and the third arc-shaped long holes 964 are opposite to the corresponding third fixing holes 941 at the ends of the third bar light source 940, and the third threaded connector can pass through the third arc-shaped long holes 964 and be screwed on the corresponding third fixing holes 941 to fix the third bar light source 940 and the third U-shaped bracket 960.

[0064] When it is necessary to adjust the angle of the third bar light source 940, the third threaded connector can be loosened to release the fastening connection between the third bar light source 940 and the third U-shaped bracket 960; thereafter, the third bar light source 940 is rotated relative to the third left end plate 961 and the third right end plate 963. During this process, the third threaded connector slides in the third arc-shaped long hole 964 for guidance; when the third bar light source 940 is rotated to a desired angle, the third threaded connector is tightened to fix the third bar light source 940 between the third left end plate 961 and the third right end plate 963, thereby ensuring the installation stability of the third bar light source 940.

[0065] This installation and rotation adjustment method of the third strip light source 940 can achieve the fixation of the third strip light source 940 at any angle within a certain angle range, and the adjustment accuracy is relatively high.

[0066] Please continue to refer to Figure 3 In this embodiment, the first U-shaped bracket 120 is adjustable along the first direction and is disposed on the frame 100; please continue to refer to Figure 4 In this embodiment, the second U-shaped bracket 950 is adjustably disposed at the horizontal section 910 along the first direction, and the third U-shaped bracket 960 is adjustably disposed at the vertical section 920 along the first direction.

[0067] Figure 5 The second structural diagram of the packaging box appearance inspection device provided in this embodiment is as follows: Figure 6 for Figure 5 The enlarged view of the local structure at B in the middle. Figure 7 This is a schematic diagram of the structure of the waste box collection device 400 of the packaging box appearance inspection device provided in this embodiment. Figures 5 to 7As shown, in this embodiment, the waste box collection device 400 may include a cache conveyor belt 410, a first pulley 420, a second pulley 430, a driving motor 440, a discharge sensor 450 and a full-material sensor 460, wherein the first pulley 420 and the second pulley 430 are both rotatably arranged on the frame 100, and the first pulley 420 and the second pulley 430 are parallel and spaced along a first direction, and the cache conveyor belt 410 covers and supports the first pulley 420 and the second pulley 430; the driving motor 440 is drivingly connected to the first pulley 420 or the second pulley 430; the discharge sensor 450 is arranged at the entrance position of the cache conveyor belt 410, the full-material sensor 460 is arranged at the exit position of the cache conveyor belt 410, and the discharge sensor 450 and the driving motor 440 are electrically connected; the packaging box appearance detection equipment may also include an alarm device, and the full-material sensor 460 is electrically connected to the alarm device.

[0068] When the first visual component 600, the second visual component 700 or the third visual component 800 detects that the appearance of the packaging box 500 is unqualified, the four-axis robot 300 will drive the packaging box 500 to be placed on the buffer conveyor belt 410. When the discharge sensor 450 senses that the packaging box 500 is placed on the buffer conveyor belt 410, it will give a signal to make the drive motor 440 drive the first pulley 420 and the second pulley 430 to rotate, so as to drive the buffer conveyor belt 410 to move forward a distance greater than the length of the packaging box 500 and then stop, and so on, to achieve the caching of multiple unqualified packaging boxes 500; when the full material sensor 460 at the exit position is blocked by the product, it means that the buffer conveyor belt 410 is full of unqualified packaging boxes 500 at this time. At this time, the full material sensor 460 will send a signal to the alarm device, and the alarm device will be used to issue a warning to prompt manual processing.

[0069] This arrangement of the waste box collecting device 400 can realize the buffering of multiple unqualified packaging boxes 500, and prompt manual centralized processing when the buffer is full, with a high degree of automation.

[0070] In addition, when processing these unqualified packaging boxes 500, the unqualified packaging boxes 500 can be taken manually at the same position (i.e., the exit position of the buffer conveyor belt 410), and each time a packaging box 500 is taken away, the buffer conveyor belt 410 automatically conveys one forward until all are emptied. This process does not require manual switching between different positions, effectively improving the processing efficiency of unqualified packaging boxes 500 and reducing labor intensity.

[0071] It should be noted that, in this embodiment, the structure and working principle of the discharge sensor 450 and how it outputs signals to control the movement of the drive motor 440, as well as the structure and working principle of the full sensor 460 and how it outputs signals to control the alarm device to issue an alarm, can all be obtained by those skilled in the art based on the prior art. This embodiment does not make any improvements on this, so they will not be elaborated on.

[0072] In this embodiment, the alarm device may include a three-color light.

[0073] Please continue to refer to Figure 6 and Figure 7 In this embodiment, the waste box collecting device 400 may also include a first guide bar 470 and a second guide bar 480. Specifically, the first guide bar 470 and the second guide bar 480 both extend along the first direction and are disposed on both sides of the buffer conveyor belt 410 to guide the movement of the packaging box 500.

[0074] This arrangement can not only guide the movement of the packaging box 500 and ensure the movement path of the packaging box 500 , but also play a limiting role on both sides of the packaging box 500 to prevent the packaging box 500 from falling from both sides of the buffer conveyor belt 410 .

[0075] Please continue to refer to Figure 7 In this embodiment, the waste box collecting device 400 may further include a material blocking plate 490 . Specifically, the material blocking plate 490 is fixedly disposed at the exit position of the buffer conveyor belt 410 to prevent the packaging box 500 from falling from the exit position of the buffer conveyor belt 410 .

[0076] The setting of the above-mentioned material blocking plate 490 can block the packaging box 500 at the exit position, preventing the packaging box 500 from falling from the exit position due to inertia during the movement of the buffer conveyor belt 410 and affecting the normal operation of other components, thereby ensuring the working reliability of the packaging box appearance inspection equipment of this embodiment.

[0077] Figure 8 This is a schematic diagram of the structure of the limiting component 130 and the lifting component 140 of the packaging box appearance inspection device provided in this embodiment. Figure 3 , and combined with Figure 8 In this embodiment, a limit assembly 130 and a lifting assembly 140 can be set at the first detection position. Specifically, the limit assembly 130 is used to prevent the packaging box 500 from moving forward when the packaging box 500 flows to the first detection position; the lifting assembly 140 is used to lift the packaging box 500 away from the conveying device 200 when the packaging box 500 flows to the first detection position, and to lower the packaging box 500 to the conveying device 200 after the detection is completed.

[0078] When the packaging box 500 is transferred to the first detection position along with the conveying device 200, the limit assembly 130 is actuated to stop the packaging box 500 at the first detection position; thereafter, the lifting assembly 140 is actuated to drive the packaging box 500 to move upward to separate from the conveying device 200, so that the detection action of the upper surface 510 of the packaging box 500 is performed in the lifting assembly 140; after the packaging box 500 completes the detection of the upper surface 510 and is determined to be qualified by the first visual assembly 600, the four-axis robot 300 will drive the packaging box 500 to move to the second detection position to detect the lower surface 520 and four side surfaces 530 of the packaging box 500; After the second visual component 700 and the third visual component 800 determine that the lower surface 520 and the four side surfaces 530 of the packaging box 500 are qualified, the four-axis robot 300 will drive the packaging box 500 to move to the first inspection position and place it on the lifting component 140 again; then, the lifting component 140 drives the packaging box 500 to descend, so that the packaging box 500 falls to the conveying device 200, and the packaging box 500 continues to be carried by the first conveyor belt 210 and the second conveyor belt 220. At the same time, the limiting component 130 releases the limit on the packaging box 500, so that the packaging box 500 can continue to flow with the conveying device 200.

[0079] The setting of the above-mentioned limit assembly 130 and the lifting assembly 140 can realize the mechanical limitation of the packaging box 500 in the first detection position, and can realize the stable support of the packaging box 500, so that the conveying device 200 can realize stable detection of the upper surface 510 without stopping, thereby avoiding shaking of the packaging box 500 during the detection of the upper surface 510.

[0080] Please continue to refer to Figure 8 In this embodiment, the limiting assembly 130 may include a limiting cylinder 132 and a limiting block 131; the lifting assembly 140 may include a lifting cylinder 141, a fixing plate 142, a supporting plate 143 and a fixed suction cup 144. Specifically, the fixing plate 142 is fixedly connected to the frame 100, the cylinder body of the lifting cylinder 141 is fixedly connected to the fixing plate 142, and the piston rod of the lifting cylinder 141 extends upward from the fixing plate 142 to be fixedly connected to the supporting plate 143; the fixed suction cup 144 is arranged on the supporting plate 143, and is used to adsorb and fix the packaging box 500 on the supporting plate 143; the cylinder body of the limiting cylinder 132 is fixedly connected to the fixing plate 142, and the limiting block 131 is fixedly connected to the piston rod of the limiting cylinder 132, and the limiting block 131 is driven to move up and down by the action of the limiting cylinder 132, so as to realize the interception and release of the packaging box 500.

[0081] Please continue to refer to Figure 3In this embodiment, the frame 100 is also provided with a flipping station, which is arranged downstream of the first detection position. The flipping station is provided with a flipping assembly 150, which is used to drive the packaging box 500 at the flipping station to flip 180°, wherein the flipping assembly 150 may include a lifting drive member 151, a flipping drive member 152, a flipping shaft 153 and an insertion plate 154 fixedly arranged on the flipping shaft 153, the lifting drive member 151 is installed on the frame 100, the output end of the lifting drive member 151 is fixedly connected to the flipping drive member 152, the flipping shaft 153 is fixedly connected to the output end of the flipping drive member 152, and the axis of the flipping shaft 153 is parallel to the second direction; the insertion plate 154 is provided with a socket 1541 for inserting the packaging box 500.

[0082] When it is necessary to use the flip assembly 150 to flip the packaging box 500, the lifting drive member 151 of the flip assembly 150 can be used to drive the flip drive member 152 connected to the output end of the lifting drive member 151 to move, so that the flip shaft 153 connected to the output end of the flip drive member 152 and the insertion plate 154 set on the flip shaft 153 can move, so that the socket 1541 of the insertion plate 154 and the packaging box 500 at the first detection position are at the same height position, so that when the conveying device 200 drives the packaging box 500 to flow to the flipping station, the packaging box 500 can enter the socket 1541 of the insertion plate 154; when the packaging box 500 enters the socket 1541, the flipping The rotating driving member 152 is actuated to drive the flip shaft 153 to rotate, thereby driving the insertion plate 154 and the packaging box 500 inserted in the socket 1541 of the insertion plate 154 to flip, thereby achieving the purpose of flipping the packaging box 500 180°; after the packaging box 500 is flipped 180°, the lifting driving member 151 can be used to drive the flip driving member 152 to descend, so that the flip shaft 153 connected to the output end of the flip driving member 152 and the insertion plate 154 set on the flip shaft 153 are lowered, so that the packaging box 500 contacts the first conveyor belt 210 and the second conveyor belt 220, so that the packaging box 500 continues to flow forward by using the first conveyor belt 210 and the second conveyor belt 220.

[0083] The setting of the flip assembly 150 enables the packaging box appearance inspection device to meet the working conditions with flipping requirements and realize the online flipping of the packaging box 500 with a high degree of automation, and the flipping process does not require the conveying device 200 to be shut down.

[0084] Please continue to refer to Figure 3 In this embodiment, the flip shaft 153 is provided with a flip suction cup 155 for adsorbing the packaging box 500 after the packaging box 500 enters the insertion port 1541, and releasing the vacuum to release the packaging box 500 when the packaging box 500 flips 180° and falls onto the first conveyor belt 210 and the second conveyor belt 220.

[0085] This arrangement can fix the packaging box 500 on the inserting plate 154, thereby preventing the packaging box 500 from being thrown out due to inertia during the turning process.

[0086] It should be noted that, in this embodiment, the four-axis robot 300 is a purchased part, and its structure and working principle can be obtained by those skilled in the art based on the prior art. This embodiment does not make any improvements to this, so it will not be described in detail.

[0087] It should also be noted that, in this embodiment, the air path designs for the fixed suction cup 144, the flip suction cup 155 and the vacuum suction cup 320 are all mature technologies in the art.

[0088] In addition, the packaging box appearance inspection equipment provided in this embodiment may also include a protective cover (not shown in the figure). Specifically, the protective cover is fixedly connected to the frame 100, and the modules such as the conveying device 200, L-shaped mounting frame 900, four-axis robot 300, waste box collection device 400, first visual component 600, second viewing angle component and third visual component 800 on the frame 100 are covered inside to ensure the safety of the packaging box appearance inspection equipment during operation.

[0089] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

[0090] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0091] In the above embodiments, the descriptions of directions such as “upper”, “lower”, “side”, etc. are all based on the drawings.

[0092] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A packaging box appearance inspection device, characterized in that: The invention comprises a frame (100) and a conveying device (200), a four-axis robot (300) and a waste box collecting device (400) all of which are installed on the frame (100), wherein the conveying device (200) is used to drive a packaging box (500) to flow along a first direction, and the packaging box (500) has an upper surface (510), a lower surface (520) and four side surfaces (530); the frame (100) is provided with a first detection position located on the flow path of the packaging box (500) and a second detection position located on the side of the conveying device (200); the end shaft (310) of the four-axis robot (300) is installed with a vacuum suction cup (320); the housing of the four-axis robot (300) is installed with a first visual component (600); the first visual component (600) The component (600) is used to detect the upper surface (510), and the four-axis robot (300) can drive the packaging box (500) to move from the first detection position to the second detection position, and drive the packaging box (500) to rotate around the vertical axis, and drive the packaging box (500) from the second detection position to the conveying device (200) or the waste box collection device (400); the second detection position is provided with a second visual component (700) and a third visual component (800), the second visual component (700) is used to detect the lower surface (520), and the third visual component (800) is used to detect the four side surfaces (530) during the process of the four-axis robot (300) driving the packaging box (500) to rotate.

2. The packaging box appearance inspection device according to claim 1, characterized in that: The first detection position is provided with two first bar-shaped light sources (110), the two first bar-shaped light sources (110) are opposite to each other along a second direction, wherein the two first bar-shaped light sources (110) are both rotatably adjustable and arranged on the frame (100), and the rotation axes of the two first bar-shaped light sources (110) are parallel to the first direction.

3. The packaging box appearance inspection device according to claim 2, characterized in that: Each of the first bar-shaped light sources (110) is mounted on the frame (100) via a first U-shaped bracket (120), the first U-shaped bracket (120) comprising a first left end plate (121), a first connecting plate (122) and a first right end plate (123) which are connected in sequence, wherein the first left end plate (121) and the first right end plate (123) are opposite to each other along the first direction, the first bar-shaped light source (110) is located between the first left end plate (121) and the first right end plate (123), and two ends of the first bar-shaped light source (110) are respectively pivotally connected to the first left end plate (121) and the first right end plate (123). The first right end plate (123); both ends of the first bar-shaped light source (110) are provided with first fixing holes (111); both the first left end plate (121) and the first right end plate (123) are provided with first arc-shaped long holes (124); the first arc-shaped long holes (124) are opposite to the first fixing holes (111) corresponding to the ends of the first bar-shaped light source (110); the first threaded connector can pass through the first arc-shaped long holes (124) and be screwed into the corresponding first fixing holes (111) to fix the first bar-shaped light source (110) and the first U-shaped bracket (120).

4. The packaging box appearance inspection device according to claim 2, characterized in that: The second detection position is provided with an L-shaped mounting frame (900), and the L-shaped mounting frame (900) includes a horizontal section (910) and a vertical section (920), wherein the opening of the L-shaped mounting frame (900) faces the conveying device (200); the second visual component (700) is installed on the horizontal section (910), and the third visual component (800) is installed on the vertical section (920).

5. The packaging box appearance inspection device according to claim 4, characterized in that: The horizontal section (910) is provided with two second bar-shaped light sources (930), the two second bar-shaped light sources (930) are opposite to each other along the second direction, and the second visual component (700) is located between the two second bar-shaped light sources (930), wherein the two second bar-shaped light sources (930) are both rotatably adjustable and arranged on the horizontal section (910), and the rotation axes of the two second bar-shaped light sources (930) are parallel to the first direction; The vertical section (920) is provided with two third bar-shaped light sources (940), the two third bar-shaped light sources (940) are opposite to each other in the up-down direction, and the third visual component (800) is located between the two third bar-shaped light sources (940), wherein the two third bar-shaped light sources (940) are both rotatably and adjustably arranged on the vertical section (920), and the rotation axes of the two third bar-shaped light sources (940) are parallel to the first direction.

6. The packaging box appearance inspection device according to claim 5, characterized in that: The second bar-shaped light source (930) is installed on the horizontal section (910) via a second U-shaped bracket (950), and the second U-shaped bracket (950) comprises a second left end plate (951), a second connecting plate (952) and a second right end plate (953) which are connected in sequence, wherein the second left end plate (951) and the second right end plate (953) are opposite to each other along the first direction, the second bar-shaped light source (930) is located between the second left end plate (951) and the second right end plate (953), and two ends of the second bar-shaped light source (930) are respectively pivotally connected to the second left end plate (951) and the second right end plate (953). a second right end plate (953); both ends of the second bar-shaped light source (930) are provided with second fixing holes (931); both the second left end plate (951) and the second right end plate (953) are provided with second arc-shaped long holes (954); the second arc-shaped long holes (954) are opposite to the corresponding second fixing holes (931) at the ends of the second bar-shaped light source (930); a second threaded connector can pass through the second arc-shaped long holes (954) and be screwed into the corresponding second fixing holes (931) to fix the second bar-shaped light source (930) and the second U-shaped bracket (950); The third strip-shaped light source (940) is installed on the vertical section (920) via a third U-shaped bracket (960), and the third U-shaped bracket (960) comprises a third left end plate (961), a third connecting plate (962) and a third right end plate (963) which are connected in sequence, wherein the third left end plate (961) and the third right end plate (963) are opposite to each other along the first direction, the third strip-shaped light source (940) is located between the third left end plate (961) and the third right end plate (963), and two ends of the third strip-shaped light source (940) are respectively pivotally connected to the third left end plate (961) and the third right end plate (963). a third right end plate (963); both ends of the third bar-shaped light source (940) are provided with third fixing holes (941); both the third left end plate (961) and the third right end plate (963) are provided with third arc-shaped long holes (964); the third arc-shaped long holes (964) are opposite to the third fixing holes (941) corresponding to the ends of the third bar-shaped light source (940); a third threaded connector can pass through the third arc-shaped long holes (964) and be screwed into the corresponding third fixing holes (941) to fixedly connect the third bar-shaped light source (940) and the third U-shaped bracket (960).

7. The packaging box appearance inspection device according to claim 1, characterized in that: The waste box collecting device (400) comprises a buffer conveyor belt (410), a first belt pulley (420), a second belt pulley (430), a driving motor (440), a material discharge sensor (450) and a full material sensor (460), wherein the first belt pulley (420) and the second belt pulley (430) are both rotatably arranged on the frame (100), and the first belt pulley (420) and the second belt pulley (430) are arranged parallel to and spaced apart from each other along the first direction, and the buffer conveyor belt (410) covers and is supported on the first belt pulley (420). ) and the second pulley (430); the drive motor (440) is drivingly connected to the first pulley (420) or the second pulley (430); the discharge sensor (450) is arranged at the entrance position of the buffer conveyor belt (410), and the full sensor (460) is arranged at the exit position of the buffer conveyor belt (410), and the discharge sensor (450) is electrically connected to the drive motor (440); the packaging box appearance detection equipment also includes an alarm device, and the full sensor (460) is electrically connected to the alarm device.

8. The packaging box appearance inspection device according to claim 7, characterized in that: The waste box collecting device (400) further includes a first guide bar (470) and a second guide bar (480), wherein the first guide bar (470) and the second guide bar (480) both extend along the first direction and are disposed on both sides of the buffer conveyor belt (410) for guiding the movement of the packaging box (500); and / or the waste box collecting device (400) further includes a material baffle plate (490), wherein the material baffle plate (490) is fixedly disposed at the exit position of the buffer conveyor belt (410) for preventing the packaging box (500) from falling from the exit position of the buffer conveyor belt (410).

9. The packaging box appearance inspection device according to claim 1, characterized in that: The first detection position is provided with a limit component (130) and a lifting component (140), wherein the limit component (130) is used to prevent the packaging box (500) from moving forward when the packaging box (500) flows to the first detection position; the lifting component (140) is used to lift the packaging box (500) away from the conveying device (200) when the packaging box (500) flows to the first detection position, and to lower the packaging box (500) to the conveying device (200) after the detection is completed.

10. The packaging box appearance inspection device according to claim 1, characterized in that: The frame (100) is also provided with a flipping station, which is arranged downstream of the first detection position. The flipping station is provided with a flipping assembly (150), which is used to drive the packaging box (500) in the flipping station to flip 180 degrees, wherein the flipping assembly (150) includes a lifting drive member (151), a flipping drive member (152), a flipping shaft (153) and an insertion plate (154) fixedly arranged on the flipping shaft (153); the lifting drive member (151) is installed on the frame (100); the output end of the lifting drive member (151) is fixedly connected to the flipping drive member (152); the flipping shaft (153) is fixedly connected to the output end of the flipping drive member (152); the axis of the flipping shaft (153) is parallel to the second direction; the insertion plate (154) is provided with a socket (1541) for inserting the packaging box (500).

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