A front-positioning heaven-and-earth box positioning system and positioning method

Abstract

The present invention provides a front-positioning heaven-and-earth box positioning system and a positioning method, which includes a positioning camera and a conveyor belt. The outer packaging is positioned on the conveyor belt, and the positioning camera is arranged below the conveyor belt. Moreover, the conveyor belts at at least two diagonal corners of the outer packaging are of a transparent structure. The positioning camera positions the outer packaging by collecting the image information at at least two diagonal corners of the front of the outer packaging. This is to solve the problem that the existing heaven-and-earth box positioning system is unreasonable, not only requiring the corner-cutting operation on the four corners of the outer packaging structure, but also having a high probability of producing waste products with a large deviation between the outer packaging printing and the box body position. It belongs to the field of packaging technology.

Description

Technical Field

[0001] The present invention relates to a positioning system and method for a heaven-and-earth box with front positioning, 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 boxes, shoe boxes, underwear boxes, shirt boxes, mobile phone boxes and other types of 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 and debossing), it is beneficial to the promotion and sales of products and improves the added value of products, and is widely used in the packaging of tobacco, alcohol, medicines, foods, beverages, daily necessities, handicrafts.

[0004] During the processing of the heaven-and-earth box, 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 four corners of the outer packaging (for camera positioning), conveys the cut outer packaging 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 to 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 very 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 positioning system and method for a heaven-and-earth box with front positioning to solve the problem that the existing heaven-and-earth box positioning system is unreasonable, not only requires a corner cutting operation on the four corners of the outer packaging structure, but also has a high probability of producing defective products with a large deviation between the outer packaging printing and the box body position.

[0006] To achieve the above object, a front-positioning heaven-and-earth box positioning system is proposed, which includes a positioning camera and a conveyor belt. The outer packaging is placed flat on the conveyor belt, and the positioning camera is arranged below the conveyor belt. The conveyor belt at at least two diagonal corners of the outer packaging is of a transparent structure. The positioning camera locates the outer packaging by collecting the image information at at least two diagonal corners of the front of the outer packaging.

[0007] In the aforementioned positioning system, the conveyor belt is a transparent conveyor belt;

[0008] In the aforementioned positioning system, at least two diagonal corners of the conveyor belt corresponding to the outer packaging are provided with outer packaging positioning holes. The positioning camera locates the outer packaging on the conveyor belt by collecting the image information at at least two diagonal corners of the front of the outer packaging;

[0009] In the aforementioned positioning system, two rows of outer packaging positioning holes are provided along the length direction of the conveyor belt. The outer packaging is arranged in sequence along the length direction of the conveyor belt, and the outer packaging is arranged parallel to the conveyor belt. Two diagonal corners of each outer packaging are respectively arranged at two rows of outer packaging positioning holes. The positioning camera locates the two diagonal corners of the outer packaging through the outer packaging positioning holes;

[0010] In the aforementioned positioning system, there are at least two positioning cameras, which respectively correspond to at least two diagonal corners of the outer packaging and are respectively used to identify the image position information at at least two diagonal corners of the outer packaging;

[0011] In the aforementioned positioning system, a processor and a positioning manipulator are further included. The positioning camera and the positioning manipulator are both connected to the processor. The image information collected by the positioning camera is transmitted to the processor for processing and analysis to achieve the positioning of the front of the outer packaging. Then, by controlling the positioning manipulator, the box body with glue is transferred to the back of the outer packaging above the conveyor belt for bonding. Since the direct positioning is carried out according to the image information of the front of the outer packaging, the pattern on the outer surface of the outer packaging and the position of the box body are more accurately positioned and the error is smaller;

[0012] In the aforementioned positioning system, a digital nozzle is further included. The digital nozzle is fixed on the positioning manipulator and is used for spraying cross lines at the four corners of the back of the outer packaging. The digital nozzle is also connected to the processor. The image information collected by the positioning camera is transmitted to the processor for processing and analysis to achieve the positioning of the front of the outer packaging. Then, by controlling the digital nozzle, cross lines are sprayed at at least two diagonal corners of the back of the outer packaging to facilitate the subsequent positioning of the box body and the outer packaging, that is, the subsequent fixing of the box body and the outer packaging. During the subsequent operation, the front position of the outer packaging can be accurately positioned by identifying the cross lines.

[0013] The present invention also provides a positioning method for a heaven-and-earth box. In this method, a positioning camera is arranged below the conveyor belt, and at least two diagonal positions of the conveyor belt for the outer packaging are set as a transparent structure. The outer packaging is conveyed face-down to the positioning camera through the conveyor belt. The positioning camera collects the front image information of at least two diagonal positions of the outer packaging through the transparent conveyor belt structure 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 positioning manipulator according to the positioning information to transfer the glued box body to the back of the outer packaging above the conveyor belt for bonding, or controls the positioning manipulator to transfer the digital nozzle to the four corners of the back of the outer packaging for cross-line spraying according to the positioning information, so as to facilitate the positioning during the subsequent fixing of the box body and the outer packaging.

[0014] Compared with the prior art, the present invention collects and positions the front pattern of the outer packaging below the conveyor belt, that is, the positioning information is based on the front pattern of the outer packaging, rather than the existing method of positioning based on the cut corners at the four corners of the back of the outer packaging. 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, this positioning system and method do not require pre-cutting the corners of the outer packaging, saving a processing step, improving the processing efficiency, and reducing the production cost. It has extremely high promotion and application value and excellent market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present invention (two rows of outer packaging positioning holes are opened on the conveyor belt);

[0016] Figure 2 is a schematic structural diagram of the present invention (the conveyor belt is a transparent conveyor belt);

[0017] Figure 3 is a control schematic diagram for cooperating with the operation of the positioning manipulator;

[0018] Figure 4 is a control schematic diagram for cooperating with the operation of the digital nozzle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] 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.

[0020] Embodiment 1

[0021] Refer to Figure 1 、 Figure 3 and Figure 4, this embodiment provides a positioning system for the heaven-and-earth box with front positioning, including a positioning camera 1 and a conveyor belt 2. The outer package 3 is placed flat on the conveyor belt 2, and the positioning camera 1 is arranged below the conveyor belt 2. Two rows of outer package positioning holes 21 are opened along the length direction of the conveyor belt 2. The outer packages 3 are arranged in sequence along the length direction of the conveyor belt, and the outer packages 3 are arranged parallel to the conveyor belt 2. Two diagonals of each outer package 3 are respectively arranged at two rows of outer package positioning holes 21. There are two positioning cameras 1, which respectively correspond to two diagonals of the outer package 3. The positioning camera 1 positions the two diagonals of the outer package 3 through the outer package positioning holes 21, and is respectively used to identify the image position information of the two diagonals of the outer package 3. Both the positioning camera 1 and the positioning manipulator 5 are connected to the processor 4. The image information collected by the positioning camera 1 is transmitted to the processor 4 for processing and analysis to achieve the positioning of the front of the outer package 3. A conventional industrial positioning camera can achieve this (excluding laser positioning). Then, the glued box body 7 is transferred by controlling the positioning manipulator 5 to be bonded to the back of the outer package 3 above the conveyor belt 2. Since the positioning is directly based on the image information of the front of the outer package 3, the pattern on the outer surface of the outer package 3 and the position of the box body 7 are positioned more accurately with smaller errors.

[0022] The positioning method for the heaven-and-earth box is as follows:

[0023] The front of the outer package 3 is transported face down to the positioning camera 1 through the conveyor belt 2. The positioning camera 1 collects the front image information of the two diagonals of the outer package 3 through the outer package positioning holes 21 and transmits the collected information to the processor 4 for processing and analysis, so as to position the front pattern of the outer package 3. Then, the processor 4 controls the positioning manipulator 5 to transfer the glued box body 7 to be bonded to the back of the outer package 3 above the conveyor belt 2 according to the positioning information.

[0024] Embodiment 2

[0025] Refer to Figure 2 and Figure 3, this embodiment provides a positioning system for a heaven-and-earth box with front positioning, including a positioning camera 1 and a conveyor belt 2. The outer packaging 3 is placed flat on the conveyor belt 2, and the positioning camera 1 is arranged below the conveyor belt 2. The conveyor belt 2 at two diagonal corners of the outer packaging 3 is made of a transparent structure / material. There are two positioning cameras 1, which respectively correspond to the two diagonal corners of the outer packaging 3. The positioning cameras 1 position the two diagonal corners of the outer packaging 3 through the transparent conveyor belt 2, respectively used to identify the image position information at the two diagonal corners of the outer packaging 3. Both the positioning camera 1 and the positioning manipulator 5 are connected to the processor 4. The image information collected by the positioning camera 1 is transmitted to the processor 4 for processing and analysis to achieve the positioning of the front of the outer packaging 3. Then, by controlling the positioning manipulator 5, the glued box body 7 is transferred to the back of the outer packaging 3 above the conveyor belt 2 for bonding. Since the positioning is directly based on the image information of the front of the outer packaging 3, the pattern on the outer surface of the outer packaging 3 and the position of the box body 7 are more accurately positioned with less error.

[0026] The positioning method for this heaven-and-earth box is as follows:

[0027] The outer packaging 3 is conveyed face down to the positioning camera 1 through the conveyor belt 2. The positioning camera 1 collects the front image information at the two diagonal corners of the outer packaging 3 through the transparent part of the conveyor belt 2 and transmits the collected information to the processor 4 for processing and analysis, thereby positioning the front pattern of the outer packaging 3. Then, the processor 4 controls the positioning manipulator 5 according to the positioning information to transfer the glued box body 7 to the back of the outer packaging 3 above the conveyor belt 2 for bonding.

[0028] Embodiment 3

[0029] Referring to Figure 2 and Figure 4 , this embodiment provides a positioning system for a heaven-and-earth box with front positioning, including a positioning camera 1 and a conveyor belt 2. The outer packaging 3 is placed flat on the conveyor belt 2, and the positioning camera 1 is arranged below the conveyor belt 2. The conveyor belt 2 at two diagonal corners of the outer packaging 3 is made of a transparent structure / material. There are two positioning cameras 1, which respectively correspond to the two diagonal corners of the outer packaging 3. The positioning cameras 1 position the two diagonal corners of the outer packaging 3 through the transparent conveyor belt 2, respectively used to identify the image position information at the two diagonal corners of the outer packaging 3. The positioning camera 1, the positioning manipulator 5, and the digital nozzle 6 are all connected to the processor 4. The image information collected by the positioning camera 1 is transmitted to the processor 4 for processing and analysis to achieve the positioning of the front of the outer packaging 3. Then, the processor 4 controls the positioning manipulator 5 according to the positioning information to move the digital nozzle 6 to the four corners of the back of the outer packaging 3 for cross-line spraying.

[0030] The positioning method for this heaven-and-earth box is as follows:

[0031] The outer package 3 is conveyed to the positioning camera 1 with its front side facing down through the conveyor belt 2. The positioning camera 1 collects the front image information of two diagonal corners of the outer package 3 through the transparent part of the conveyor belt 2 and conveys the collected information to the processor 4 for processing and analysis, so as to position the front pattern of the outer package 3. Then, the processor 4 controls the positioning manipulator 5 to move the digital nozzle 6 to the four corners of the back of the outer package 3 for cross-line spraying according to the positioning information, so as to facilitate the positioning during the subsequent fixation of the box body 7 and the outer package 3. This method is for sectional construction, that is, first cross-line spraying and positioning are carried out, and then the cross-lines are identified in the next step for the bonding and fixation of the box body 7 and the outer package 3.

[0032] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A front-positioning heaven-and-earth box positioning system, comprising a positioning camera (1) and a conveyor belt (2), with the outer packaging (3) lying flat on the conveyor belt (2). Characterized in that: The positioning camera (1) is arranged below the conveyor belt (2), and at least two diagonal corners of the conveyor belt (2) where the outer packaging (3) is located are of a transparent structure. The positioning camera (1) locates the outer packaging (3) by collecting image information at at least two diagonal corners on the front side of the outer packaging (3). At least two diagonal corners of the conveyor belt (2) corresponding to the outer packaging (3) are provided with outer packaging positioning holes (21). The positioning camera (1) locates the outer packaging (3) on the conveyor belt (2) by collecting image information at at least two diagonal corners on the front side of the outer packaging (3). Two rows of outer packaging positioning holes (21) are arranged along the length direction of the conveyor belt (2). The outer packaging (3) is arranged in sequence along the length direction of the conveyor belt, and the outer packaging (3) is arranged parallel to the conveyor belt (2). Two diagonal corners of each outer packaging (3) are respectively arranged at the two rows of outer packaging positioning holes (21). The positioning camera (1) locates the two diagonal corners of the outer packaging (3) through the outer packaging positioning holes (21). It further includes a processor (4) and a positioning manipulator (5), and both the positioning camera (1) and the positioning manipulator (5) are connected to the processor (4). It further includes a digital nozzle (6). The digital nozzle (6) is fixed on the positioning manipulator (5) and is used for spraying cross lines at the four corners on the back of the outer packaging (3). The digital nozzle (6) is also connected to the processor (4).

2. The front-positioning heaven-and-earth box positioning system according to claim 1, Characterized in that: There are at least two positioning cameras (1), corresponding to at least two diagonal corners of the outer packaging (3) respectively, and are respectively used for identifying the image position information at at least two diagonal corners of the outer packaging (3).

3. A method for positioning a heaven-and-earth box using the front-positioning heaven-and-earth box positioning system according to claim 1, Characterized in that: In this method, the positioning camera (1) is arranged below the conveyor belt (2), and at least two diagonal corners of the conveyor belt (2) where the outer packaging (3) is located are set as a transparent structure. The outer packaging (3) is transported face down to the positioning camera (1) through the conveyor belt (2). The positioning camera (1) collects the front image information at at least two diagonal corners of the outer packaging (3) through the transparent conveyor belt (2) and transmits the collected information to the processor (4) for processing and analysis, so as to position the front pattern of the outer packaging (3). Then, according to the positioning information, the processor (4) controls the positioning manipulator (5) to transfer the glued box body (7) to the back of the outer packaging (3) above the conveyor belt (2) for bonding, or according to the positioning information, the processor (4) controls the positioning manipulator (5) to transfer the digital nozzle (6) to the four corners on the back of the outer packaging (3) for spraying cross lines, so as to facilitate the positioning when the subsequent box body (7) is fixed to the outer packaging (3).

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