Unpacking system

Abstract

The utility model relates to the technical field of unpacking equipment, and discloses an unpacking system, which is used for unpacking external processing parts with packaging parts, and the processing parts at least comprise a first processing part and a second processing part with different performances; the unpacking system comprises a first information acquisition device, a second information acquisition device and a control device, wherein the first information acquisition device is used for identifying an information identification code outside a package to obtain workpiece information; the conveying belt is used for sequentially conveying the recognized machined parts; the unpacking device comprises a plurality of unpacking machines, the unpacking machines at least comprise a first unpacking machine and a second unpacking machine, and the first unpacking machine and the second unpacking machine are used for dismantling a first packing piece outside the first machined piece and a second packing piece outside the second machined piece respectively; the conveying belt is provided with a first site and a second site close to the first bale breaker and the second bale breaker respectively, at least one induction piece is arranged between the first site and the second site, and the induction pieces are used for recognizing the number of machined pieces passing through the induction pieces. And transmission tracks of machined parts with different performances can be monitored.

Description

TECHNICAL FIELD

[0001] The utility model relates to unpacking equipment technical field especially relates to a unpacking system. BACKGROUND

[0002] In production activities, products of different quality grades need to use incoming materials of different performances for processing. These processing pieces are usually wrapped in packaging pieces before use to protect the processing pieces, and then the packaging pieces are removed to take out the processing pieces. However, due to the small appearance difference between processing pieces of different performances, it is difficult to distinguish them, so there are often mistakes in the process of removing the packaging pieces. In simple terms, different performance processing pieces are mixed on the same production line for processing after being unpacked, which can easily lead to uneven product quality, affecting product performance and quality grade.

[0003] Once the processing pieces of different performances are unpacked incorrectly, it is difficult to be detected in time whether it is personnel sampling inspection or in the subsequent multi-process flow, so it is easy to cause the above problems affecting product quality, so it is necessary to solve this problem. SUMMARY

[0004] The utility model embodiment discloses a unpacking system, the unpacking system can effectively monitor the transmission track of processing piece with different performance, avoid the mixing between different performance processing piece, thereby effectively ensure that the performance of the product finally prepared has higher uniformity.

[0005] The application discloses a unpacking system, which is used for unpacking processing pieces with packaging pieces outside, the packaging piece is provided with an information identification code outside, the processing piece at least includes a first processing piece and a second processing piece with different performances, and the packaging piece includes a first packaging piece wrapped outside the first processing piece and a second packaging piece wrapped outside the second processing piece.

[0006] The unpacking system comprises:

[0007] A first information acquisition device is used to identify the information identification code to obtain processing piece information.

[0008] A conveying belt is used to convey the identified processing pieces in sequence.

[0009] A unpacking device comprises a plurality of unpacking machines, the unpacking machines at least include a first unpacking machine and a second unpacking machine, the first unpacking machine is used to remove the first packaging piece on the first processing piece from the conveying belt, and the second unpacking machine is used to remove the second packaging piece on the second processing piece from the conveying belt.

[0010] The conveying belt has a first position near one end of the first unpacking machine and a second position near one end of the second unpacking machine, and the conveying belt is provided with sensing members, at least one of which is arranged between the first position and the second position, and the sensing members are used to identify the number of processing pieces passing through the sensing members.

[0011] Further, the unpacking device further comprises a second information acquisition device arranged before the unpacking machine and after the conveying belt, and the second information acquisition device is used to identify the information identification code on the packaging piece on the conveying belt.

[0012] Further, the conveying belt comprises:

[0013] A main conveying belt is used to sequentially convey the identified processing pieces;

[0014] Parallelly arranged branch conveying belts are provided with the second information acquisition device, and the branch conveying belts at least include a first branch conveying belt and a second branch conveying belt, the first branch conveying belt is arranged between the main conveying belt and the first unpacking machine to convey the first processing piece to the first unpacking machine, and the second branch conveying belt is arranged between the main conveying belt and the second unpacking machine to convey the second processing piece to the second unpacking machine.

[0015] Further, the processing pieces include a plurality of groups of silicon wafers, and the packaging pieces include packaging films used to wrap any group of the silicon wafers, and the unpacking machine sequentially comprises:

[0016] A first grabbing structure comprising a flexible gripper used to grab any group of the silicon wafers;

[0017] A film removing structure comprising a suction cup used to suck the packaging film on any group of the silicon wafers from the flexible gripper to make the packaging film fall off from the silicon wafers;

[0018] A second grabbing structure arranged after the film removing structure, and the second grabbing structure is connected with a rotating member used to rotate any group of the silicon wafers to be horizontally placed;

[0019] A first quality detection structure arranged after the second grabbing structure, and the first quality detection structure is used to detect the quality of the silicon wafers.

[0020] Further, the unpacking machine further comprises a recycling structure, which is used to collect the packaging film when the packaging film is separated from the silicon wafer; and / or,

[0021] The unpacking device further comprises a product abnormality area, which is arranged behind the first quality detection structure and is used to collect the silicon wafer that is unqualified after being detected by the first quality detection structure.

[0022] Further, the unpacking system further comprises a packaging box, which is provided with the information identification code outside and is used to place the workpiece with the packaging piece, and the unpacking system further comprises:

[0023] An unpacking machine, which is arranged between the first information acquisition device and the unpacking device and is used to open the packaging cover of the packaging box, and the first information acquisition device is used to identify the information identification code outside the packaging box;

[0024] A cover taking machine, which is arranged between the unpacking machine and the unpacking device and is used to take away the packaging cover so that the packaging box is arranged in an open manner and exposes the workpiece with the packaging piece;

[0025] When the open packaging box is transported to the unpacking machine, the unpacking machine is used to remove the packaging piece on the workpiece from the conveying belt.

[0026] Further, the unpacking system further comprises a second quality detection structure, which is arranged between the unpacking machine and the cover taking machine and is used to detect the quality of the packaging box and the workpiece from the conveying belt; and / or,

[0027] The unpacking system further comprises a weight detection piece, which is arranged between the first information acquisition device and the unpacking machine and is used to detect the sum of the weight of the workpiece and the packaging piece.

[0028] Further, the unpacking system further comprises a material conveying track, which is connected to the unpacking device, the unpacking machine is used to take out at least part of the workpiece with the packaging piece in the packaging box for removal, so that the packaging box becomes a loading box, and the material conveying track is used to convey the loading box.

[0029] Further, the material conveying track comprises a first track, a second track and a third track, the first track is connected to the unpacking device, and the conveying directions of the second track and the third track are different;

[0030] The first track is provided with a visual detection member for detecting the workpiece in the charging box, the second track is used for conveying the charging box containing the workpiece, and the third track is used for conveying the charging box not containing the workpiece.

[0031] Further, along the conveying direction of the third track, the unpacking system further comprises a cover placing machine and a box sealing machine, the cover placing machine is used for placing the packaging cover on the opening of the charging box, and the box sealing machine is used for sealing the charging box;

[0032] The unpacking system further comprises a weighing area, the weighing area is arranged before the first information acquisition device, and the weighing area is provided with a weighing structure, the weighing structure is used for weighing the weight of the packaging box which is not identified by the first information acquisition device and the weight of the charging box which is sealed by the box sealing machine.

[0033] Further, the unpacking system further comprises a product collecting structure, the product collecting structure is located behind the unpacking machine, and the product collecting structure comprises:

[0034] An empty box is used for placing the workpiece after being unpacked by the unpacking machine, so that the empty box becomes a full box;

[0035] A feeding machine is used for recycling the full box or dispensing the empty box.

[0036] Further, the product collecting structure further comprises a buffer position, the buffer position is arranged behind the unpacking machine, the buffer position is used for placing the empty box, and the buffer position is provided with a box detection member, the box detection member is used for detecting the quality of the empty box, and when the quality of the empty box is qualified, the empty box is used for placing the workpiece after being unpacked by the unpacking machine.

[0037] Further, the product collecting structure further comprises a box abnormal area, the box abnormal area is arranged between the buffer position and the feeding machine, and the box abnormal area is used for collecting the empty box which is unqualified after being detected by the box detection member.

[0038] Further, the unpacking system further comprises a transfer structure, the transfer structure is arranged before the first information acquisition device, and the transfer structure comprises a manipulator and a positioner connected with the manipulator, the positioner is used for determining the position of the workpiece with the packaging member, so that the manipulator can clamp the workpiece with the packaging member, and the manipulator is used for placing the workpiece with the packaging member at the first information acquisition device; and / or,

[0039] The unpacking system further comprises a packaging material area located before the first information acquisition device, and the packaging material area is used for placing the packaging pieces; and / or,

[0040] The unpacking system further comprises a full material area located before the first information acquisition device, and the full material area is used for placing the workpieces with the packaging pieces; and / or,

[0041] The unpacking system further comprises an empty material area located before the first information acquisition device, and the empty material area is used for placing empty packaging boxes; and / or,

[0042] The unpacking system further comprises an AGV trolley and a transfer structure, and the AGV trolley is used for placing the workpieces with the packaging pieces at the transfer structure.

[0043] Compared with the prior art, the application has at least the following beneficial effects:

[0044] The application provides an unpacking system, which comprises a first information acquisition device, a conveying belt, and an unpacking device, wherein a sensing piece is arranged between a first site and a second site on the conveying belt, the unpacking machine comprises a first unpacking machine for unpacking a first packaging piece on a first workpiece and a second unpacking machine for unpacking a second packaging piece on a second workpiece, so as to separate the packaging pieces from the workpieces. Through the above arrangement, the conveying track of the workpieces with different properties can be effectively monitored, the mixing between the workpieces with different properties is avoided, and the performance of the finally prepared product is effectively ensured to have high uniformity.

[0045] Specifically, the workpieces comprise first workpieces and second workpieces with different properties, the first workpieces have first packaging pieces, and the second workpieces have second packaging pieces, so that after the first information acquisition device identifies the information identification code on the packaging pieces, the workpiece information is obtained, including the conveying sequence of the workpieces, and the first workpieces or the second workpieces are determined, and then the identified workpieces are conveyed on the conveying belt in the identified sequence. Moreover, the first workpieces and the second workpieces are conveyed to the corresponding unpacking machines to complete the subsequent unpacking process.

[0046] It is worth noting that in the process of conveying on the conveying belt, since the inductor is located between the first site and the second site of the conveying belt, when the workpieces pass through the inductor one by one, it can only count the number of the first workpiece or the second workpiece each time. At the same time, since the first information acquisition device has completed information identification when the workpiece enters the starting end of the conveying belt, it knows the workpiece information. When the workpiece is conveyed to the corresponding unpacking machine for disassembly according to the plan, the number of workpieces detected by the inductor should theoretically match the number of workpieces of the same type identified by the first information acquisition device. However, once an abnormality occurs in the production link, for example, due to the failure of the conveying belt, the sorting error or other reasons, part of the workpieces deviate from the established route, and then the number of workpieces detected by the inductor deviates from the starting conveying number. Therefore, by means of the difference in the number, combined with the workpiece information identified by the first information acquisition device in the early stage, it can be determined whether the workpieces of different properties have been disassembled incorrectly in the conveying or sorting process, so as to timely issue an alarm or start the error correction mechanism, and ensure the accuracy and stability of the unpacking process. BRIEF DESCRIPTION OF DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0048] Figure 1 is a structural schematic diagram of a unpacking system (material conveying track, full material area, packaging material area, empty material area are not shown) provided by the embodiments of the present application;

[0049] Figure 2 is Figure 1 is an enlarged view of A in

[0050] Figure 3 is a structural schematic diagram of a unpacking device provided by the embodiments of the present application;

[0051] Figure 4 is a structural schematic diagram of a unpacking system (including full material area, packaging material area, empty material area are not shown) provided by the embodiments of the present application;

[0052] Figure 5 is a structural schematic diagram of a unpacking system provided by the embodiments of the present application.

[0053] Icon: 1, first information collection device; 2, conveying belt; 2a, main conveying belt; 2b, branch conveying belt; 21, inductor; 3, unpacking device; 31, unpacking machine; 31a, first unpacking machine; 31b, second unpacking machine; 311, first grabbing structure; 312, film removing structure; 313, second grabbing structure; 314, first quality detection structure; 315, recycling structure; 32, second information collection device; 33, product abnormal area; 4, box opening machine; 5, cap taking machine; 6, second quality detection structure; 7, weight detection piece; 8, material conveying track; 81, first track; 811, visual detection piece; 82, second track; 83, third track; 9, capping machine; 10, box sealing machine; 11, weighing area; 12, product collecting structure; 121, material feeding machine; 122, buffer position; 123, material box abnormal area; 13, transfer structure; 14, packaging material area; 15, full material area; 16, empty material area; 17, AGV trolley. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0055] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0056] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific situation.

[0057] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific types and structures can be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0058] The technical solutions provided by the utility model will be further described below in combination with the embodiments and drawings.

[0059] In modern production activities, product quality control runs through every fine link, and the accurate use of processing pieces is the key. Different quality level products adapt to processing pieces with corresponding performance to produce high-quality finished products. However, these processing pieces are tightly wrapped in packaging pieces before reaching the production line. Therefore, from the packaging piece or the processing piece itself, the processing pieces with different performances and the packaging pieces wrapped outside the processing pieces have subtle differences in appearance, which are difficult to accurately distinguish with the naked eye.

[0060] Therefore, the step of removing the packaging piece seems simple, but once different performance processing pieces are mixed into the same production line and are mistakenly removed, it is difficult to be found in the personnel sampling link or the subsequent multiple processes. This problem will lead to uneven quality of finished products produced by processing pieces, decreased yield, increased cost of rework and scrap, and therefore needs to be solved.

[0061] Taking the production of solar cells as an example, a solar cell uses a silicon wafer as a basic processing piece to obtain a final solar cell product by making various functional film layers and electrodes on the silicon wafer. Therefore, for such products as solar cells, the silicon wafer is a very important processing piece. The silicon wafer can be divided into different performance silicon wafers according to its resistivity and other indicators, for example, silicon wafers with general resistivity are used as first-class silicon wafers with good performance, and silicon wafers with lower resistivity than the first-class silicon wafers are used as second-class silicon wafers with better performance. Since the second-class silicon wafers have lower resistivity, they are used to produce higher-quality solar cells. If the first-class silicon wafers and the second-class silicon wafers are mistakenly mixed in the production line during the unpacking process of the packaging pieces of the first-class silicon wafers and the second-class silicon wafers, the quality of the finally produced solar cells will be affected.

[0062] Based on the above problems, the embodiments of the present application provide a unpacking system, which can identify the problem of different performance processing pieces being removed incorrectly, thereby improving the quality of products to a higher degree.

[0063] The embodiments of the present application provide a unpacking system, as shown in Figure 1 The unpacking system is used for unpacking processing pieces with packaging pieces outside, the packaging pieces are provided with information identification codes, the processing pieces at least include first processing pieces and second processing pieces with different performances, the packaging pieces include first packaging pieces wrapped outside the first processing pieces and second packaging pieces wrapped outside the second processing pieces; the unpacking system includes:

[0064] A first information acquisition device 1 is used to identify the information identification code to obtain processing piece information;

[0065] A conveying belt 2 is used to convey the identified workpieces in sequence;

[0066] A unpacking device 3 comprises a plurality of unpacking machines 31, at least a first unpacking machine 31a and a second unpacking machine 31b, the first unpacking machine 31a is used to unpack the first packaging on the first workpiece from the conveying belt 2, and the second unpacking machine 31b is used to unpack the second packaging on the second workpiece from the conveying belt 2;

[0067] The conveying belt 2 has a first position near the first unpacking machine 31a, and a second position near the second unpacking machine 31b, and the conveying belt 2 is provided with a sensing element 21, at least one sensing element 21 is arranged between the first position and the second position, and the sensing element 21 is used to identify the number of workpieces passing through the sensing element 21.

[0068] The unpacking system provided by the present application can effectively confirm whether the workpieces with different properties have been unpacked incorrectly during the conveying or sorting process, so as to timely issue an alarm or start a correction mechanism, and ensure the accuracy and stability of the entire unpacking process.

[0069] It is worth noting that, during the conveying process, since the sensing element 21 is located between the first position and the second position of the conveying belt 2, when the workpieces pass through the sensing element 21 one by one, it can only count the number of first workpieces or second workpieces each time. At the same time, since the first information acquisition device 1 has completed information identification and obtained workpiece information, such as the preset feeding quantity of the workpiece, when the workpiece enters the starting end of the conveying belt 2. When the workpiece is conveyed to the corresponding unpacking machine 31 for unpacking according to the plan, the sensing element 21 detects that the actual feeding quantity of the workpiece is the same as the preset feeding quantity. However, once an abnormality occurs in the production link, such as the workpiece deviating from the intended route due to the failure of the conveying belt 2, sorting error, etc., the sensing element 21 detects that the actual feeding quantity of the workpiece deviates from the preset feeding quantity. Therefore, through the unpacking system of the present application, it can be confirmed whether the workpieces with different properties have been unpacked incorrectly during the conveying or sorting process, so as to timely issue an alarm or start a correction mechanism, and ensure the accuracy and stability of the entire unpacking process.

[0070] Exemplarily, taking the number of the first processing piece and the second processing piece as two as an example, when the first information collection device 1 identifies the information identification code, the processing pieces entering the conveying belt 2 are the first processing piece, the second processing piece, the first processing piece and the second processing piece in turn. When the first processing piece is conveyed to the first unpacking machine 31a, if the number detected by the inductor 21 is two, it indicates that the conveying is correct, and then the second unpacking machine 31b unpacks the second packaging piece on the second processing piece. If the number detected by the inductor 21 is not two, it indicates that the conveying is incorrect, and an alarm or a correction mechanism can be started in time to ensure the accuracy and stability of the unpacking process.

[0071] The processing piece can be various raw material pieces used to process finished products. For example, in the field of solar cells, the processing piece can be a silicon wafer. For example, in the field of lithium batteries, the processing piece can be a current collector, etc., which is not limited in the present application.

[0072] The different properties of the processing piece include various performance indicators that affect the quality of the final product obtained by processing. Taking the silicon wafer as the processing piece as an example, the different properties of the processing piece refer to the differences in the resistivity, minority carrier lifetime, minority carrier number, and polysilicon purity of the silicon wafer. In addition, the processing piece can include a third processing piece, a fourth processing piece, etc. with different properties in addition to the first processing piece and the second processing piece, which is not limited in the present application.

[0073] The packaging piece is used to protect the unpacked processing piece. Exemplarily, the packaging piece includes an encapsulation film, a plastic packaging box, packaging paper or foam, etc. In addition, the packaging of the processing piece by the packaging piece can be local packaging or full packaging of the processing piece by the packaging piece. Taking the processing piece as a silicon wafer as an example, full packaging can be that the silicon wafer is wrapped inside the encapsulation film or placed in the plastic packaging box; local packaging can be that the packaging paper is placed on the upper and lower surfaces of the silicon wafer, and the foam is wrapped on the side surface of the silicon wafer.

[0074] The first information collection device 1 can be a code scanner that scans two-dimensional codes or bar codes, for example. After the first information collection device identifies the information identification code on the packaging piece, the obtained processing piece information includes but is not limited to the conveying sequence of the processing pieces with different properties, the number of the processing pieces with different properties, the origin and supplier information of the processing pieces, etc.

[0075] The inductor 21 can be an optoelectronic counter, for example, to count the processing pieces passing through the inductor 21.

[0076] In addition, the first unpacking machine 31a has one or more unpacking machines, and the second unpacking machine 31b has one or more unpacking machines. The first position refers to the starting position of the first workpiece entering the first unpacking machine 31a, that is, when the first workpiece is transmitted to the first position, it means that it will be unpacked in the first unpacking machine 31a; the second position refers to the starting position of the second workpiece entering the second unpacking machine 31b, that is, when the second workpiece is transmitted to the second position, it means that it will be unpacked in the second unpacking machine 31b. In addition, one or more sensing members 21 can be arranged between the first position and the second position, which can help improve the accuracy of detection and help adjust abnormalities in time when multiple sensing members 21 are arranged; and, taking the first unpacking machine 31a close to the first information collection device 1 as an example, the transmission belt close to the first information collection device 1 has a third position, and the sensing member 21 can also be arranged between the third position and the first position, which can help improve the accuracy of detection of the sensing member 21. The application does not limit the arrangement position and the number of the sensing member, as long as the effect of the application can be achieved.

[0077] Further, as shown in Figure 2 In order to further avoid the problem of unpacking different performance workpieces incorrectly, the unpacking device 3 further comprises a second information collection device 32, which is arranged before the unpacking machine 31 and after the transmission belt 2. The second information collection device 32 is used to identify the information identification code on the packaging member on the transmission belt 2. Through this arrangement, it can effectively avoid that workpieces with different performance enter the same unpacking machine 31, thereby avoiding the problem of unpacking incorrectly to a higher degree, which helps to improve the quality of products. The second information collection device 32 can be a code scanner, for example.

[0078] In an optional embodiment, when the transmission belt 2 transmits the workpiece to the manipulator, the manipulator grasps the workpiece at this time, and the second information collection device 32 is arranged on the manipulator. After the second information collection device 32 scans and confirms, the workpiece is placed in the unpacking machine 31 for unpacking.

[0079] In another optional embodiment, referring back to Figure 2 The transmission belt 2 comprises:

[0080] A main transmission belt 2a, which is used to transmit the identified workpieces in sequence;

[0081] The branch conveying belt 2b is arranged in parallel, the second information acquisition device 32 is arranged on the branch conveying belt 2b, and the branch conveying belt 2b at least includes a first branch conveying belt and a second branch conveying belt. The first branch conveying belt is arranged between the main conveying belt 2a and the first unpacking machine 31a, so as to convey the first workpiece to the first unpacking machine 31a. The second branch conveying belt is arranged between the main conveying belt 2a and the second unpacking machine 31b, so as to convey the second workpiece to the second unpacking machine 31b.

[0082] The transmission mode of the conveying belt 2 can effectively improve the processing efficiency. Since the second information acquisition device 32 is arranged on the branch conveying belt 2b, the position of the conveying belt 2 is relatively fixed, the arrangement position of the second information acquisition device 32 is relatively fixed, and the scanning position is also relatively fixed. Therefore, the second information acquisition device 32 can quickly identify the information identification code, and can also ensure the accuracy and efficiency of scanning, thereby improving the processing efficiency and avoiding the problem of unpacking error.

[0083] Further, as shown in the drawings, Figure 3 The workpiece includes a plurality of groups of silicon wafers, the packaging member includes an encapsulation film, the encapsulation film is used for wrapping any group of silicon wafers, and the unpacking machine 31 sequentially includes:

[0084] The first grabbing structure 311 includes a flexible gripper, and the flexible gripper is used for grabbing any group of silicon wafers;

[0085] The film removing structure 312 includes a suction cup, and the suction cup is used for sucking the encapsulation film on any group of silicon wafers from the flexible gripper, so as to make the encapsulation film fall off from the silicon wafer;

[0086] The second grabbing structure 313 is arranged after the film removing structure 312, the second grabbing structure 313 is connected with a rotating part, and the rotating part is used for rotating to horizontally place any group of silicon wafers;

[0087] The first quality detection structure 314 is arranged after the second grabbing structure 313, and the first quality detection structure 314 is used for detecting the quality of the silicon wafer.

[0088] The above structure makes the packaging member fall off from the workpiece, and avoids damage to the silicon wafer. The flexible gripper is suitable for objects of different shapes, the control of the grabbing force is more precise, damage to the silicon wafer during grabbing of any group of silicon wafers can be effectively avoided, and the quality of the silicon wafer is not affected. In addition, the suction cup is used for adsorbing the encapsulation film, damage to the silicon wafer can be effectively avoided, and the quality of the silicon wafer is not adversely affected.

[0089] In addition, the number of silicon wafers in any group of silicon wafers can be one, two, ten or even more, and the number of silicon wafers in different groups can be the same or different; the first quality detection structure 314 is, for example, an AOI detection structure (Automated Optical Inspection), which detects the quality of the silicon wafer, including the appearance damage of the silicon wafer, including whether the silicon wafer has edge collapse, corner missing, scratches, etc.

[0090] In addition, the unpacking machine 31 also includes a recycling structure 315 for collecting the packaging film that falls off from the silicon wafer when the packaging film falls off from the silicon wafer. By setting the recycling structure 315, the recycling of the packaging film is realized, thereby facilitating the subsequent centralized processing.

[0091] In addition, the unpacking device 3 is also provided with a product abnormal area 33, which is arranged after the first quality detection structure 314, and the product abnormal area 33 is used to collect the silicon wafers that are not qualified after being detected by the first quality detection structure 314. The setting of the product abnormal area 33 helps to distinguish between qualified products and unqualified products, thereby effectively ensuring the uniformity of the quality of solar cells made of silicon wafers with the same performance.

[0092] Further, as shown in Figure 4 The unpacking system also includes a packaging box, and the packaging box is provided with an information identification code outside, and the packaging box is used to place the workpiece with the packaging piece, and the unpacking system also includes:

[0093] The unpacking system also includes a packaging box, and the packaging box is provided with an information identification code outside, and the packaging box is used to place the workpiece with the packaging piece, and the unpacking system also includes:

[0094] The unpacking system also includes a packaging box, and the packaging box is provided with an information identification code outside, and the packaging box is used to place the workpiece with the packaging piece, and the unpacking system also includes:

[0095] When the open packaging box is transported to the unpacking machine 31, the unpacking machine 31 is used to remove the packaging piece on the workpiece from the conveying belt 2.

[0096] By placing the workpiece with the packaging piece in the packaging box, the packaging box has a good protective effect on the workpiece, avoiding the phenomenon that the quality of the workpiece is damaged during the handling process, and by setting the unpacking system with the unpacking machine 4 and the cover removing machine 5, the packaging box is arranged to be open, and then transported to the unpacking machine 31, and the unpacking machine 31 can take out the workpiece with the packaging piece through the opening for removal.

[0097] In addition, the unpacking system further comprises a second quality detection structure 6, which is arranged between the unpacking machine 31 and the cap removing machine 5, and is used for detecting the quality of the packaging box and the workpiece from the conveying belt 2. The detection quality of the second quality detection structure 6 includes whether the cap of the packaging box is removed and whether the placement position of the workpiece in the packaging box is offset. By arranging the second quality detection structure 6, it is ensured that there is no error operation in the processing process, and the continuity and effectiveness of the processing are ensured, so that the unpacking effect is ensured to a higher degree, and the reliability of unpacking is improved. In addition, the second quality detection structure 6 is an AOI detection structure.

[0098] In addition, the unpacking system further comprises a weight detection member 7, which is arranged between the first information acquisition device 1 and the box opening machine 4, and is used for detecting the sum of the weight of the workpiece and the packaging member. By arranging the weight detection member 7 and comparing the workpiece information detected by the first information acquisition device 1, it is further ensured that the weight of the workpiece and the packaging member meets the requirements of unpacking, which helps to avoid the problem that the workpiece information does not match the actual information, and further improves the reliability of unpacking.

[0099] Further, referring back to Figure 4 The unpacking system further comprises a material conveying track 8, which is connected to the unpacking machine 31. The unpacking machine 31 is used to take out and remove at least part of the workpiece with the packaging member in the packaging box, so that the packaging box becomes a loading box. The material conveying track 8 is used to convey the loading box.

[0100] When the unpacking machine 31 takes out and removes at least part of the workpiece in the packaging box, the packaging box becomes a loading box. The material conveying track 8 conveys the loading box, realizes the recycling of the loading box, and helps to improve the efficiency of processing.

[0101] At least part means that all workpieces are taken out and packaging members are removed, or part of the workpieces are taken out and packaging members are removed.

[0102] Further, the material conveying track 8 comprises a first track 81, a second track 82 and a third track 83 connected to the first track 81. The first track 81 is connected to the unpacking machine 31. The conveying directions of the second track 82 and the third track 83 are different.

[0103] The first track 81 is provided with a visual detection member 811, which is used to detect the workpiece in the loading box. The second track 82 is used to convey the loading box containing the workpiece. The third track 83 is used to convey the loading box without the workpiece.

[0104] By setting the first track 81 and the second track 82, the processing pieces and the non-processing pieces in the loading box are distinguished, so that the processing pieces are ensured to flow to the next process, and the omission is avoided.

[0105] In addition, the second track 82 can be a manual processing track. When the processing piece is transmitted to the second track 82, the packaging piece on the processing piece is manually removed, so that the omission phenomenon is avoided.

[0106] In addition, the material transmission track 8 can not only transmit the loading box, but also transmit the processing piece from the wrong unpacking machine 31, so that the unpacking error is avoided. For example, when the first processing piece is transmitted to the second unpacking machine 31b, the first processing piece is sealed by the third track 83, further transmitted to the first information acquisition device 1 for information identification, and then transmitted to the first unpacking machine 31a for unpacking, or the first processing piece can be transmitted to the second track for manual unpacking.

[0107] Further, along the transmission direction of the third track 83 (see the X direction in FIG. 8), the unpacking system further comprises a capping machine 9 and a sealing machine 10. The capping machine 9 is used to place a sealing cover on the opening of the loading box, and the sealing machine 10 is used to seal the loading box. Figure 4

[0108] The unpacking system further comprises a weighing area 11, which is arranged before the first information acquisition device 1. The weighing area 11 is provided with a weighing structure, which is used to weigh the weight of the packaging box which is not identified by the first information acquisition device 1 and the weight of the loading box which is sealed by the sealing machine 10.

[0109] The weight of the packaging box identified by the first information acquisition device 1 is the weight before unpacking, and the weight before unpacking includes the packaging box and the processing piece with the packaging piece placed in the packaging box. The weight of the loading box sealed by the sealing machine 10 is the weight after unpacking, and the weight after unpacking includes the loading box. By comparing the weights before and after unpacking, it is further verified whether the processing piece is completely taken out of the packaging box, so that the unpacking is not completely taken out, thereby increasing the production cost.

[0110] Further, the unpacking system further comprises a product collecting structure 12, which is located after the unpacking machine 31. The product collecting structure 12 comprises:

[0111] An empty material box, which is used to place the processing piece unpacked by the unpacking machine 31, so that the empty material box becomes a full material box;

[0112] A material feeding machine 121, which is used to recycle the full material box or distribute the empty material box. ​

[0113] The empty material box is used to recycle the processed pieces after disassembly, and the full material box and the empty material box are circulated through the material feeder 121, the full material box is transported to the next production process, thereby helping to improve the production efficiency.

[0114] In addition, the product collecting structure 12 further comprises a buffer position 122, the buffer position 122 is arranged after the unpacking machine 31, the buffer position 122 is used to place the empty material box, the buffer position 122 is provided with a material box detection piece, the material box detection piece is used to detect the quality of the empty material box, when the quality of the empty material box is qualified, the empty material box is used to place the processed pieces after disassembly by the unpacking machine 31.

[0115] By setting the material box detection piece, the defects of the empty material box can be found in time, so that the processed pieces can be effectively placed in the empty material box, thereby avoiding potential damage to the processed pieces, and helping to improve the production efficiency. The detection quality of the material box detection piece includes whether the empty material box is deformed or broken.

[0116] In addition, the product collecting structure 12 further comprises a material box abnormal area 123, the material box abnormal area 123 is arranged between the buffer position 122 and the material feeder 121, the material box abnormal area 123 is used to collect the unqualified empty material box after being detected by the material box detection piece. By setting the material box abnormal area 123, the qualified and unqualified products are distinguished, avoiding the confusion phenomenon, and improving the reliability of recycling.

[0117] Further, as shown in Figure 5 The unpacking system further comprises a transfer structure 13, the transfer structure 13 is arranged before the first information acquisition device 1, the transfer structure 13 comprises a mechanical hand and a positioner connected with the mechanical hand, the positioner is used to determine the position of the processed pieces with the packaging piece, so that the mechanical hand can clamp the processed pieces with the packaging piece, and the mechanical hand is used to place the processed pieces with the packaging piece at the first information acquisition device 1. By this setting, the clamping accuracy is improved, so that the first information acquisition device 1 can effectively identify the information identification code, and then enter the subsequent unpacking process.

[0118] In addition, the unpacking system further comprises a packaging material area 14, the packaging material area 14 is located before the first information acquisition device 1, and the packaging material area 14 is used to place the packaging piece; and / or, the unpacking system further comprises a full material area 15, the full material area 15 is located before the first information acquisition device 1, and the full material area 15 is used to place the processed pieces with the packaging piece; and / or, the unpacking system further comprises an empty material area 16, the empty material area 16 is located before the first information acquisition device 1, and the empty material area 16 is used to place the empty packaging box. By separately dividing the full material area 15, the empty material area 16 or the packaging material area 14, the mixing phenomenon can be avoided, and the convenience of processing can be achieved.

[0119] Further, the unpacking system further comprises an AGV 17 and a transfer structure 13, the AGV 17 is used to place the workpiece with the packaging piece at the transfer structure 13. The AGV 17 further ensures the automation process of unpacking, improves the efficiency of production to a higher degree, and reduces the labor force.

[0120] Taking the workpieces as a plurality of silicon wafers as an example, the silicon wafers are divided into first workpieces and second workpieces according to the resistivity of the silicon wafers, and the number of the first workpieces and the second workpieces is one. The packaging piece is a packaging film, and the workpiece wrapped with the packaging piece is placed in the packaging box. The running process of the unpacking system of the application is as follows:

[0121] The packaging box containing the first workpiece and the second workpiece is sent to the upper line area of the access door by the plan department forklift, and the employee enters the information (manufacturer, model, specification, category) of the workpiece after the information is recorded. The AGV forklift forks the packaging box to the weighing area, and the weight of the packaging box is obtained by using the weighing structure to weigh the packaging box, and the packaging box that has been weighed is placed in the full material area.

[0122] Then, the AGV forklift forks the packaging box in the full material area to the transfer structure, and according to the position information obtained by the positioner of the transfer structure, the manipulator places the packaging box at the first information acquisition device for identification of the information identification code. After scanning, the weight detection piece weighs the mass of the packaging box, and the packaging box that has passed the weight detection is transmitted to the unpacking machine for unpacking. After unpacking, the cover is taken off and buffered in the cover taking machine. Then, the first workpiece is transmitted to the first unpacking machine through the transmission belt, and the second workpiece is transmitted to the second unpacking machine. The number detected by the sensing element between the first position and the second position is one, which matches the number detected by the first information acquisition device, indicating that the transmission of the first workpiece and the second workpiece is correct. If the number detected by the sensing element is two, it does not match the number detected by the first information acquisition device, indicating that the first workpiece has not entered the first unpacking machine. Therefore, the first workpiece can be transmitted out of the second unpacking machine by using the material transmission track, or the first workpiece can be directly taken off the transmission belt by the manipulator.

[0123] Further, the second information acquisition device identifies the information identification code on the packaging box, so as to further confirm that the first workpiece is transmitted to the first unpacking machine and the second workpiece is transmitted to the second unpacking machine. The second quality detection structure is used to detect whether the packaging cover is taken off and whether the placement position of the workpiece inside is correct, and the packaging box that has passed the detection of the second quality detection structure is transmitted to the unpacking machine.

[0124] When the transmission to the unpacking machine, the flexible gripper in the first grabbing structure is used to grab any group of silicon wafers, and then the suction cup is used to remove the packaging film on any group of silicon wafers on the flexible gripper, and the fallen packaging film is transmitted to the recycling mechanism for centralized processing; the silicon wafers on the flexible gripper are transmitted to the second grabbing structure, and the rotating part in the second grabbing structure is used to horizontally place the silicon wafers by rotating; and then the first quality detection structure detects the horizontally placed silicon wafers to see if there are phenomena such as edge collapse, cracking, etc. on the appearance. Among them, the silicon wafers that pass the detection of the first quality detection structure are transmitted to the product collection structure; the silicon wafers that do not pass the detection of the first quality detection structure are transmitted to the product abnormal area for manual processing. In addition, the material box detection piece of the buffer area in the product collection structure detects the quality of the empty material box, and when the quality of the empty material box is unqualified, it is transmitted to the material box abnormal area; when the quality of the empty material box is qualified, the silicon wafers that pass the detection of the first quality detection structure are transmitted to the empty material box, so that the empty material box becomes a full material box, and the full material box is recycled by the material delivery machine and transmitted to the next process.

[0125] The processing piece in the packaging box is taken out and becomes a loading box, and the loading box is recycled through the material transmission track. Among them, the visual detection piece of the first track detects the loading box, if the loading box contains processing pieces, it is transmitted to the second track; if the loading box does not contain processing pieces, it is transmitted to the third track, and the sealing machine and the box sealing machine are used to seal it, so that the loading box is in a sealed state.

[0126] The sealed loading box is transported to the weighing area by the AGV trolley to obtain a second weight value, and the first weight value and the second weight value are compared to determine whether there are processing pieces in the loading box, and the loading box without processing pieces is transported to the empty material area. In addition, the packaging material area will supplement the packaging materials of the sealing machine and the box sealing machine in time to ensure the continuity of packaging.

[0127] The above has introduced in detail a kind of unpacking system disclosed in the embodiments of the present application, specific examples are applied in this paper to explain the principle and implementation mode of the present application, the above embodiment is only used to help understanding a kind of unpacking system: simultaneously, for the general technical personnel of the prior art, according to the idea of the present application, in specific implementation mode and application range will have change, on the basis of the above, the content of the specification should not be understood as the limitation of the present application.

Claims

1. A unpacking system for unpacking workpieces with outer packaging, the packaging being provided with an information identification code, the workpieces including at least first workpieces and second workpieces with different properties, the packaging including first packaging wrapped around the first workpieces and second packaging wrapped around the second workpieces. characterized in that The unpacking system comprises: first information acquisition device for identifying the information identification code to obtain workpiece information; a conveying belt for conveying the identified workpieces in sequence; an unpacking device including a plurality of unpacking machines, the unpacking machines including at least a first unpacking machine and a second unpacking machine, the first unpacking machine being configured to remove the first packaging on the first workpieces from the conveying belt, and the second unpacking machine being configured to remove the second packaging on the second workpieces from the conveying belt; wherein the conveying belt has a first site near one end of the first unpacking machine, and a second site near one end of the second unpacking machine, and the conveying belt is provided with sensing members, at least one of which is arranged between the first site and the second site, and the sensing members are configured to identify the number of workpieces passing through the sensing members.

2. The de-baling system of claim 1, wherein, The unpacking device further comprises a second information acquisition device arranged before the unpacking machines and after the conveying belt, and the second information acquisition device is configured to identify the information identification code on the packaging from the conveying belt.

3. The de-baling system of claim 2, wherein, The conveying belt comprises: a main conveying belt for conveying the identified workpieces in sequence; and a plurality of branch conveying belts arranged in parallel, the branch conveying belts being provided with the second information acquisition device, and the branch conveying belts including at least a first branch conveying belt and a second branch conveying belt, the first branch conveying belt being arranged between the main conveying belt and the first unpacking machine to convey the first workpieces to the first unpacking machine, and the second branch conveying belt being arranged between the main conveying belt and the second unpacking machine to convey the second workpieces to the second unpacking machine.

4. The de-baling system of claim 1, wherein, The workpieces include a plurality of groups of silicon wafers, the packaging includes encapsulating films for wrapping any group of the silicon wafers, and the unpacking machines in sequence include: a first grabbing structure including a flexible gripper for grabbing any group of the silicon wafers; a film removing structure including a suction cup for sucking the encapsulating film on any group of the silicon wafers from the flexible gripper to make the encapsulating film fall off the silicon wafers; a second grabbing structure arranged after the film removing structure, the second grabbing structure being connected with a rotating member for rotating to horizontally place any group of the silicon wafers; and a first quality detection structure arranged after the second grabbing structure, the first quality detection structure being configured to detect the quality of the silicon wafers.

5. The de-baling system of claim 4, wherein, The unpacking machine further comprises a recycling structure configured to collect the packaging film when the packaging film is peeled off from the silicon wafer; and / or, The unpacking device further comprises a product abnormality area configured to collect the silicon wafer that is unqualified after being detected by the first quality detection structure.

6. The de-baling system of claim 1, wherein, The unpacking system further comprises a packaging box provided with the information identification code, and configured to place the workpiece with the packaging member; and the unpacking system further comprises: an unpacking machine configured to open the packaging cover of the packaging box, and the first information acquisition device is configured to identify the information identification code on the packaging box; a cover taking machine configured to take away the packaging cover so that the packaging box is open to expose the workpiece with the packaging member; When the open packaging box is transported to the unpacking machine, the unpacking machine is configured to remove the packaging member on the workpiece from the conveying belt.

7. The de-baling system of claim 6, wherein, The unpacking system further comprises a second quality detection structure configured to detect the quality of the packaging box and the workpiece from the conveying belt. The unpacking system further comprises a weight detection member configured to detect the total weight of the workpiece and the packaging member between the first information acquisition device and the unpacking machine. The unpacking system further comprises a material conveying track opposite to the unpacking machine, the unpacking machine is configured to take out at least part of the workpiece with the packaging member in the packaging box for removal, so that the packaging box becomes a loading box, and the material conveying track is configured to convey the loading box.

8. The de-baling system of claim 6, wherein, The material conveying track comprises a first track, a second track and a third track opposite to the first track, the first track is opposite to the unpacking machine, and the conveying directions of the second track and the third track are different.

9. The de-baling system of claim 8, wherein, The first track is provided with a visual detection member configured to detect the workpiece in the loading box, the second track is configured to convey the loading box containing the workpiece, and the third track is configured to convey the loading box not containing the workpiece. Along the conveying direction of the third track, the unpacking system further comprises a cover sealing machine and a box sealing machine, the cover sealing machine is configured to place the packaging cover on the opening of the loading box, and the box sealing machine is configured to seal the loading box.

10. The de-baling system of claim 9, wherein, The unpacking system further comprises a weighing area provided with a weighing structure configured to weigh the packaging box that has not been identified by the first information acquisition device and the loading box that has been sealed by the box sealing machine. ​ 11. The de-baling system of claim 1, wherein, The unpacking system further comprises a product collecting structure located behind the unpacking machine, the product collecting structure comprising: an empty box for placing the workpiece unpacked by the unpacking machine, so that the empty box becomes a full box; a box feeding machine for recycling the full box or feeding the empty box.

12. The de-baling system of claim 11, wherein, The product collecting structure further comprises a buffer station located behind the unpacking machine, the buffer station being used for placing the empty box, and the buffer station being provided with a box quality detection device for detecting the quality of the empty box, and when the quality of the empty box is qualified, the empty box is used for placing the workpiece unpacked by the unpacking machine.

13. The de-baling system of claim 12, wherein, The product collecting structure is further provided with a box abnormality area located between the buffer station and the box feeding machine, and the box abnormality area is used for collecting the empty box that is unqualified after being detected by the box quality detection device.

14. The de-baling system of any of claims 1 to 13, wherein, The unpacking system further comprises a transfer structure located in front of the first information acquisition device, the transfer structure comprising a mechanical hand and a positioner connected with the mechanical hand, the positioner being used for determining the position of the workpiece with the packaging piece, so that the mechanical hand can clamp the workpiece with the packaging piece, and the mechanical hand is used for placing the workpiece with the packaging piece at the first information acquisition device; and / or, The unpacking system further comprises a packaging material area located in front of the first information acquisition device, and the packaging material area is used for placing the packaging piece; and / or, The unpacking system further comprises a full box area located in front of the first information acquisition device, and the full box area is used for placing the workpiece with the packaging piece; and / or, The unpacking system further comprises an empty box area located in front of the first information acquisition device, and the empty box area is used for placing an empty packaging box; and / or, The unpacking system further comprises an AGV trolley and a transfer structure, and the AGV trolley is used for placing the workpiece with the packaging piece at the transfer structure.

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