A conveying and positioning system and positioning method for a heaven and earth box

Abstract

The present invention provides a conveying and positioning system and a positioning method for a heaven and earth box, which includes a positioning camera and a conveyor belt group. The conveyor belt group includes a first conveyor belt, a second conveyor belt and a third conveyor belt. The conveying surfaces of the three conveyor belts are flush, and the second conveyor belt and the third conveyor belt are arranged side by side and butt-jointed upstream or downstream of the first conveyor belt. There are positioning gaps reserved between the second conveyor belt, the third conveyor belt and the first conveyor belt. Two diagonals of the outer packaging are respectively arranged at the two positioning gaps, and two positioning cameras are respectively arranged below the two diagonals of the outer packaging. The two positioning cameras perform positioning on the outer packaging by respectively collecting image information at the two diagonals on the front of the outer packaging. To solve the problem that the existing positioning system for heaven and earth boxes is unreasonable, not only the four corners of the outer packaging structure need to be cut, but there is also a high probability of producing waste products with too large a deviation between the printing of the outer packaging and the position of the box body. It belongs to the field of packaging technology.

Description

Technical Field

[0001] The present invention relates to a heaven-and-earth box conveying and positioning system and a positioning method, belonging to the technical field of packaging. Background Art

[0002] A heaven-and-earth box refers to a box style, where the lid of the paper box is the "heaven" and the bottom is the "earth", so it is called a heaven-and-earth box. The heaven-and-earth box is also called a heaven-and-earth cover and is widely used in various types of hardcover gift packaging boxes, shoe boxes, underwear boxes, shirt boxes, mobile phone boxes and other packaging boxes.

[0003] With the enhancement of people's environmental awareness, the global paper box / carton packaging industry has developed rapidly, and the production capacity has increased significantly. Since folding cartons have the characteristics of low processing cost, convenient storage and transportation, being applicable to various printing methods (lithography / offset printing, gravure printing, letterpress / flexographic printing, screen printing), being easy to form and process (die cutting and creasing, folding and bonding), being suitable for automatic packaging (automatically completing processes such as opening - forming - filling - sealing), being convenient for sales, display and recycling, and being beneficial to environmental protection. Especially after surface finishing (glazing, laminating, hot stamping, embossing), it is beneficial to the promotion and sales of commodities and improves the added value of products. It is widely used in the packaging of tobacco, alcohol, drugs, food, beverages, daily necessities, and handicrafts.

[0004] During the processing of heaven-and-earth boxes, in order to make the outer surface more exquisite, an outer packaging (such as wrapping paper or wrapping cloth) is fixed on the outer surface of the heaven-and-earth box. For this reason, a heaven-and-earth box positioning system is required. The existing heaven-and-earth box positioning system first cuts the corners of the outer packaging (for camera positioning), conveys the outer packaging with cut corners to directly below the industrial positioning camera through a conveyor belt, the camera positions the outer packaging according to the four corners of the outer packaging, and then controls the manipulator to move the box body of the heaven-and-earth box directly above the outer packaging to bond and fix the box body and the outer packaging. Currently, this method positions the back of the outer packaging. Since there is generally a certain error between the printing on the outer packaging and the outer packaging structure, and the back positioning method positions based on the outer packaging structure, that is, there will still be a certain error between the outer packaging structure and the box body, resulting in two errors between the printing on the outer packaging and the final box body. This leads to a high probability of producing defective products with a large deviation between the printing on the outer packaging and the position of the final box body even if the positioning errors between the printing on the outer packaging, the outer packaging structure and the box body all meet the national standard regulations. This is a major problem faced by a large number of current printing enterprises. Summary of the Invention

[0005] The present invention provides a heaven-and-earth box conveying and positioning system and a positioning method to solve the problem that the existing heaven-and-earth box positioning system is unreasonable, not only requires cutting the corners of the outer packaging structure, but also has a high probability of producing defective products with a large deviation between the printing on the outer packaging and the position of the box body.

[0006] To achieve the above object, a heaven-and-earth box conveying and positioning system is proposed, which includes a positioning camera and a conveyor belt group. The outer packaging is placed flat on the conveyor belt group. The conveyor belt group includes a first conveyor belt, a second conveyor belt, and a third conveyor belt. The conveying surfaces of the three conveyor belts are flush. The second conveyor belt and the third conveyor belt are arranged side by side and butt-jointed upstream or downstream of the first conveyor belt. There are positioning gaps reserved between the second conveyor belt and the third conveyor belt and the first conveyor belt. Two diagonals of the outer packaging are respectively arranged at the two positioning gaps. Two positioning cameras are respectively arranged below the two diagonals of the outer packaging. The two positioning cameras position the outer packaging by respectively collecting image information at the two diagonals on the front of the outer packaging.

[0007] In the foregoing positioning system, a processor and a manipulator are further included. The positioning camera and the manipulator are both connected to the processor.

[0008] In the foregoing positioning system, a digital nozzle for spraying crosshairs is further included. The digital nozzle is fixed on the manipulator and is used for spraying crosshairs at the four corners on the back of the outer packaging. The digital nozzle is also connected to the processor.

[0009] The present invention also provides a method for positioning a heaven-and-earth box. In this method, the positioning camera is arranged below the conveyor belt group. The conveyor belt group is composed of three conveyor belts. At least two positioning gaps are reserved between the three conveyor belts. Two positioning cameras are respectively arranged inside or below the two positioning gaps. The outer packaging is laid face down on the conveyor belt group and is conveyed by the conveyor belt group to the junction of the three conveyor belts. Two diagonals of the outer packaging are respectively arranged at the positioning gaps above the two positioning cameras. The positioning camera collects the front image information at the two diagonals of the outer packaging through the positioning gaps and transmits the collected information to the processor for processing and analysis, so as to position the front pattern of the outer packaging. Then, the processor controls the manipulator to transfer the box body with glue applied to the back of the outer packaging above the conveyor belt for bonding according to the positioning information, or controls the digital nozzle to spray crosshairs at the four corners on the back of the outer packaging according to the positioning information by the processor, so as to facilitate the positioning when the box body is fixed to the outer packaging subsequently.

[0010] Compared with the prior art, the present invention collects and positions the front pattern of the outer packaging under the conveyor belt, that is, the positioning information is based on the front pattern of the outer packaging, rather than the cut corners at the four corners on the back of the outer packaging as in the existing method. When bonding and fixing the box body, it is more accurate, avoiding a positioning error, greatly reducing the rejection rate, significantly improving the product quality and qualification rate. At the same time, the positioning system and method do not require pre-cutting the corners of the outer packaging, saving a processing link, improving the processing efficiency, and reducing the production cost. It has extremely high popularization and application value and excellent market prospects. Brief Description of the Drawings

[0011] Figure 1 Structural schematic diagram of the present invention (in the state where the outer packaging is adhered to the box body);

[0012] Figure 2 is Figure 1 Structural schematic diagram of the outer packaging being conveyed to before the positioning seam;

[0013] Figure 3 Structural schematic diagram of the present invention when using a digital nozzle;

[0014] Figure 4 Control schematic diagram of the present invention;

[0015] Figure 5 Control schematic diagram of the present invention when using a digital nozzle. Detailed implementation manners

[0016] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0017] Embodiment 1

[0018] Referring to Figure 1 、 Figure 2 and Figure 4 , this embodiment provides a heaven-and-earth box conveying and positioning system, which includes a positioning camera 1 and a conveyor belt group 2. The outer packaging 3 is placed flat on the conveyor belt group 2. The conveyor belt group 2 includes a first conveyor belt 21, a second conveyor belt 22 and a third conveyor belt 23. The conveying surfaces of the three conveyor belts are flush. The second conveyor belt 22 and the third conveyor belt 23 are arranged side by side and butt-jointed upstream or downstream of the first conveyor belt 21. Positioning seams 4 are reserved between the second conveyor belt 22 and the third conveyor belt 23 and the first conveyor belt 21 respectively. Two diagonals of the outer packaging 3 are respectively arranged at the two positioning seams 4. Two positioning cameras 1 are respectively arranged below the two diagonals of the outer packaging 3. The two positioning cameras 1 respectively collect the image information at the two diagonals on the front of the outer packaging 3 to position the outer packaging 3.

[0019] Both the positioning camera 1 and the manipulator 6 are connected to the processor 5. The image information collected by the positioning camera 1 is transmitted to the processor 5 for processing and analysis to realize the positioning of the front of the outer packaging 3. Then, the processor 5 controls the manipulator 6 according to the positioning information to transfer the glued box body 8 to the back of the outer packaging 3 and bond and fix the box body 8 to the back of the outer packaging 3.

[0020] It further includes a digital nozzle 7 for spraying crosshairs. The digital nozzle 7 is fixed on the manipulator 6 and is used to spray crosshairs at the four corners on the back of the outer package 3. The digital nozzle 7 is also connected to the processor 5. The image information collected by the positioning camera 1 is transmitted to the processor 5 for processing and analysis to achieve the positioning of the front of the outer package 3, and then the processor 5 controls the digital nozzle 6 to spray crosshairs at at least two opposite corners on the back of the outer package 3 according to the positioning information.

[0021] The specific method is as follows: The front of the outer package 3 is laid face down on the conveyor belt group 2 and conveyed by the conveyor belt group 2 to the junction of the three conveyor belts. Two opposite corners of the outer package 3 are respectively arranged at the positioning slits 4 above the two positioning cameras 1. The positioning cameras 1 collect the front image information at the two opposite corners of the outer package 3 through the positioning slits 4 and transmit the collected information to the processor 5 for processing and analysis, so as to position the front pattern of the outer package 3. Then, the processor 5 controls the manipulator 6 to transfer the glued box body 8 to the back of the outer package 3 above the conveyor belt 2 for bonding according to the positioning information.

[0022] Embodiment 2

[0023] Refer to Figure 3 and Figure 5 This embodiment provides a heaven-and-earth box conveying and positioning system, which includes a positioning camera 1 and a conveyor belt group 2. The outer package 3 is placed flat on the conveyor belt group 2. The conveyor belt group 2 includes a first conveyor belt 21, a second conveyor belt 22 and a third conveyor belt 23. The conveying surfaces of the three conveyor belts are flush. The second conveyor belt 22 and the third conveyor belt 23 are arranged side by side and docked upstream or downstream of the first conveyor belt 21. There are positioning slits 4 reserved between the second conveyor belt 22 and the third conveyor belt 23 and the first conveyor belt 21. Two opposite corners of the outer package 3 are respectively arranged at the two positioning slits 4. Two positioning cameras 1 are respectively arranged below the two opposite corners of the outer package 3. The two positioning cameras 1 position the outer package 3 by respectively collecting the image information at the two opposite corners on the front of the outer package 3.

[0024] The positioning camera 1, the manipulator 6 and the digital nozzle 7 are all connected to the processor 5. The digital nozzle 7 is fixed on the manipulator 6. The manipulator 6 is arranged above the conveyor belt group 2. The image information collected by the positioning camera 1 is transmitted to the processor 5 for processing and analysis to achieve the positioning of the front of the outer package 3, and then the processor 5 controls the digital nozzle 6 to spray crosshairs at at least two opposite corners on the back of the outer package 3 according to the positioning information.

[0025] The specific method is as follows: The outer package 3 is laid face down on the conveyor belt group 2 and conveyed by the conveyor belt group 2 to the junction of the three conveyor belts. The two diagonals of the outer package 3 are respectively arranged at the positioning slits 4 above the two positioning cameras 1. The positioning cameras 1 collect the front image information at the two diagonals of the outer package 3 through the positioning slits 4 and transmit the collected information to the processor 5 for processing and analysis, so as to position the front pattern of the outer package 3. Then, the processor 5 controls the manipulator 6 to transfer the digital nozzle 7 fixed on the manipulator 6 to the four corners of the outer package 3 according to the positioning information, and spray cross lines at the four corners of the back of the outer package 3 to facilitate the positioning when the subsequent box body 8 is fixed to the outer package 3.

[0026] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heaven-and-earth box conveying and positioning system, comprising a positioning camera (1) and a conveyor belt group (2). The outer package (3) is laid flat on the conveyor belt group (2). It is characterized in that: The conveyor belt group (2) includes a first conveyor belt (21), a second conveyor belt (22) and a third conveyor belt (23). The conveying surfaces of the three conveyor belts are flush. The second conveyor belt (22) and the third conveyor belt (23) are arranged side by side and butt-jointed upstream or downstream of the first conveyor belt (21). Positioning gaps (4) are reserved between the second conveyor belt (22) and the third conveyor belt (23) and the first conveyor belt (21). Two diagonals of the outer package (3) are respectively arranged at the two positioning gaps (4). Two positioning cameras (1) are respectively arranged below the two diagonals of the outer package (3). The two positioning cameras (1) perform positioning on the outer package (3) by respectively collecting image information at the two diagonals on the front of the outer package (3). It further includes a processor (5) and a manipulator (6). The positioning camera (1) and the manipulator (6) are both connected to the processor (5). It further includes a digital nozzle (7) for spraying crosshairs. The digital nozzle (7) is fixed on the manipulator (6) and is used for spraying crosshairs at the four corners on the back of the outer package (3). The digital nozzle (7) is also connected to the processor (5).

2. A method for positioning a heaven-and-earth box by using the heaven-and-earth box conveying and positioning system according to claim 1, It is characterized in that: In this method, the positioning camera (1) is arranged below the conveyor belt group (2). The conveyor belt group (2) is composed of three conveyor belts. At least two positioning gaps (4) are reserved between the three conveyor belts. The two positioning cameras (1) are respectively arranged inside or below the two positioning gaps (4). The outer package (3) is laid face down on the conveyor belt group (2) and is conveyed by the conveyor belt group (2) to the junction of the three conveyor belts. Two diagonals of the outer package (3) are respectively arranged at the positioning gaps (4) above the two positioning cameras (1). The positioning camera (1) collects the front image information at the two diagonals of the outer package (3) through the positioning gap (4) and conveys the collected information to the processor (5) for processing and analysis, so as to position the front pattern of the outer package (3). Then, the processor (5) controls the manipulator (6) to transfer the glued box body (8) to the back of the outer package (3) above the conveyor belt group (2) for bonding according to the positioning information, or the processor (5) controls the digital nozzle (7) to spray crosshairs at the four corners on the back of the outer package (3) according to the positioning information, so as to facilitate the positioning when the subsequent box body (8) is fixed to the outer package (3).

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