A sheet buffer mechanism and a sheet conveying device

Abstract

The present application discloses a material sheet buffer mechanism and a material sheet conveying device, the material sheet buffer mechanism comprises a first conveying mechanism and a storage part, the first conveying mechanism comprises a conveyor belt and an adsorption component, the conveyor belt is configured to carry and convey the material sheet, the adsorption component is arranged on the conveying path of the conveyor belt, the adsorption surface of the adsorption component is lower than the conveying surface of the conveyor belt, the adsorption component is configured to downwardly adsorb the material sheet on the conveyor belt to increase the friction between the material sheet and the conveyor belt; the storage part is arranged on the conveying path of the conveyor belt, the storage part comprises a lifting mechanism and a film storage container, the lifting mechanism is configured to drive the film storage container to rise and fall, the film storage container comprises a plurality of film storage positions arranged along the height direction, the lifting mechanism controls the film storage container to rise to a preset height each time, so as to store the material sheet adsorbed by the adsorption component in the corresponding film storage position. The above-mentioned material sheet buffer mechanism can make the material sheet stop in time at the loading position of the corresponding film storage position, avoiding the collision of the film caused by the conveying inertia.

Description

Technical Field

[0001] The present application belongs to the field of silicon wafer production equipment manufacturing, and in particular relates to a wafer buffer mechanism and a wafer conveying device. Background Art

[0002] In the production process of silicon wafers and photovoltaic cells, there are many different process processing equipment such as sorting machines, cleaning machines, wafer loader, etc. It is often necessary to load the wafers into wafer storage containers such as flower baskets and buffer silos to facilitate transportation or release the wafers when there is a temporary shortage of materials at the front-end workstation to avoid interruption of feeding.

[0003] However, in the actual production process, in order to prevent the sheet conveying speed from being too high, resulting in sheet collision and damage when buffering the sheet, the sheet conveying speed is often set relatively low, which reduces the sheet collection efficiency. Utility Model Content

[0004] The purpose of the present application is to provide a sheet caching mechanism to solve the problem in the prior art that the sheets are easily damaged by collision when caching the sheets due to the high conveying speed of the sheets; in addition, the present application also provides a sheet conveying device including the above-mentioned sheet caching mechanism.

[0005] To achieve the above purpose, the embodiment of the present application adopts the following technical solution:

[0006] In a first aspect, the present application proposes a web caching mechanism, which includes a first conveying mechanism and a storage unit, wherein:

[0007] The first conveying mechanism includes a conveyor belt and an adsorption assembly, the conveyor belt is configured to carry and convey the web along a first horizontal direction, the adsorption assembly is arranged on a conveying path of the conveyor belt, the adsorption surface of the adsorption assembly is lower than the conveying surface of the conveyor belt, and the adsorption assembly is configured to downwardly adsorb the web on the conveyor belt to increase the friction between the web and the conveyor belt;

[0008] The storage unit is arranged on the conveying path of the conveyor belt, and the storage unit includes a lifting mechanism and a film storage container. The lifting mechanism is configured to drive the film storage container to rise and fall, and the film storage container includes a plurality of film storage positions arranged along the height direction. The lifting mechanism controls the film storage container to rise to a preset height each time so as to store the material sheets adsorbed by the adsorption component in the corresponding film storage position.

[0009] By arranging an adsorption component on the first conveying mechanism, the friction between the material sheet on the first conveying mechanism and the conveyor belt can be increased, and the conveyor belt can be decelerated, so that the material sheet conveyed by the first conveying mechanism can be quickly and accurately stopped at the loading position corresponding to the sheet storage position, avoiding the collision of the sheet caused by the conveying inertia. Since there is no need to deliberately reduce the material sheet conveying speed, the material sheet conveying speed can even be further increased, thereby ensuring that the sheet collection efficiency is greatly improved compared with the existing technology.

[0010] Optionally, the conveyor belt comprises a first conveyor narrow belt and a second conveyor narrow belt arranged in parallel, the first conveyor narrow belt is rotatably mounted on the first conveyor frame, and the second conveyor narrow belt is rotatably mounted on the second conveyor frame;

[0011] The adsorption component comprises a first adsorption component and a second adsorption component. The first adsorption component is arranged close to the first narrow conveying belt, and the second adsorption component is arranged close to the second narrow conveying belt.

[0012] By setting the conveyor belt as a first conveyor narrow belt and a second conveyor narrow belt that are parallel and spaced apart, a conveyor belt with a simple structure, low cost, and easy installation, debugging and maintenance is provided; at the same time, the first adsorption component and the second adsorption component are respectively arranged close to the first conveyor narrow belt and the second conveyor narrow belt, so that the battery cell is subjected to the adsorption force from the first adsorption component and the second adsorption component, thereby further increasing the friction between the material sheet and the conveyor belt.

[0013] Optionally, the first adsorption assembly includes a first mounting block and a first adsorption block, the first mounting block is fixed on the first conveying rack, the first adsorption block is fixedly mounted on the first mounting block and a first air cavity is formed therebetween, the first adsorption block is provided with a first air hole communicating with the first air cavity, the first air hole is connected to a vacuum air path, a first adsorption gap communicating with the first air cavity is provided between the first adsorption block and the first mounting block, the first adsorption gap extends along a first horizontal direction, and the vacuum air path draws air from the first adsorption gap through the first air cavity to generate a downward adsorption force on the battery cell located above the first adsorption gap;

[0014] And / or, the second adsorption assembly includes a second mounting block and a second adsorption block, the second mounting block is fixed on the second conveying rack, the second adsorption block is fixedly mounted on the second mounting block and a second air cavity is formed therebetween, the second adsorption block is provided with a second air hole connected to the second air cavity, the second air hole is connected to the vacuum air path, a second adsorption gap connected to the second air cavity is provided between the second adsorption block and the second mounting block, the second adsorption gap extends along the first horizontal direction, the vacuum air path draws air from the second adsorption gap through the second air cavity to generate a downward adsorption force on the battery cell located above the second adsorption gap.

[0015] Through the cooperation of the first air hole, the first air cavity, the first adsorption gap and the vacuum air path, a vacuum negative pressure can be generated in the conveying direction of the first conveying narrow belt, and the material sheet on the first conveying narrow belt can be adsorbed downward by the vacuum negative pressure; through the cooperation of the second air hole, the second air cavity and the second adsorption gap, a vacuum negative pressure can be generated in the conveying direction of the second conveying narrow belt, and the material sheet on the second conveying narrow belt can be adsorbed downward by the vacuum negative pressure; at the same time, the first mounting block and the second mounting block are directly mounted on the first conveying frame and the second conveying frame respectively, which occupies a small space and is convenient for installation, debugging and maintenance.

[0016] Optionally, the conveyor belt comprises a first conveyor narrow belt and a second conveyor narrow belt arranged in parallel, the first conveyor narrow belt is rotatably mounted on the first conveyor frame, and the second conveyor narrow belt is rotatably mounted on the second conveyor frame;

[0017] The adsorption assembly includes two third adsorption assemblies, and the two third adsorption assemblies are arranged between the first conveying narrow belt and the second conveying narrow belt at intervals along the sheet conveying direction;

[0018] Alternatively, the adsorption assembly includes a third adsorption assembly, and the third adsorption assembly is arranged in the middle position between the first conveying narrow belt and the second conveying narrow belt.

[0019] By arranging two third adsorption components between the first conveyor narrow belt and the second conveyor narrow belt along the material sheet conveying direction, two adsorption areas for downwardly adsorbing the material on the conveyor belt can be generated between the first conveyor narrow belt and the second conveyor narrow belt along the material sheet conveying direction, so as to better control the deceleration of the material sheet; by arranging a third adsorption component between the first conveyor narrow belt and the second conveyor narrow belt, an adsorption force for downwardly adsorbing the material on the conveyor belt can be generated between the first conveyor narrow belt and the second conveyor narrow belt, thereby simplifying the overall structure and facilitating the disassembly, assembly and maintenance of the adsorption component.

[0020] Optionally, the film storage container includes a first side plate and a second side plate that are parallel and correspondingly arranged along the second horizontal direction, and a plurality of carriers arranged at intervals in the height direction are arranged on opposite surfaces of the first side plate and the second side plate, and two carriers at the same height form a film storage position to jointly carry a material film.

[0021] Through the cooperation of the first side plate, the second side plate and the plurality of bearing members, a plurality of wafer storage positions can be formed in the height direction of the wafer storage container, thereby providing a wafer storage container with a simple structure and low cost.

[0022] Optionally, a sensing element is also provided on the conveying path of the conveyor belt, and the sensing element is configured to detect whether the material sheet is in a preset position. The sensing element is also configured to send a sensing signal to the control component after detecting that the material sheet is in the preset position. The control component is configured to control the adsorption component to generate adsorption force and control the conveyor belt to slow down after receiving the sensing signal.

[0023] Through the cooperation of the sensing element and the control component, the automatic control of the adsorption force of the adsorption component and the conveying speed of the conveyor belt is realized.

[0024] Optionally, after receiving the feedback signal, the control component controls the adsorption component to generate a gradually increasing adsorption force; or,

[0025] After receiving the feedback signal, the control component controls the adsorption component to generate a fixed adsorption force.

[0026] The control part controls the adsorption force generated by the adsorption component to gradually increase or remain unchanged, so that the friction between the material sheet on the conveyor belt and the conveyor belt becomes larger. At the same time, the speed of the conveyor belt is reduced, so that the speed of the material sheet on the conveyor belt gradually decreases, further ensuring timely and accurate stopping at the loading position corresponding to the storage position, so as to facilitate the storage part to receive the material sheet on the conveyor belt.

[0027] In a second aspect, the present application provides a sheet conveying device, which includes a main conveying mechanism and at least one sheet buffer mechanism, wherein:

[0028] The first conveying mechanism is arranged in parallel with the main conveying mechanism, and the storage part further comprises a first transverse movement mechanism, which is configured to drive the lifting mechanism to move alternately to the first conveying mechanism and the main conveying mechanism along a second horizontal direction, and the first horizontal direction is perpendicular to the second horizontal direction;

[0029] The first transverse movement mechanism drives the lifting mechanism to move to the first conveying mechanism, and moves the storage part to the conveying path of the conveyor belt of the first conveying mechanism. The lifting mechanism controls the film storage container to rise to a preset height each time to receive the film conveyed by the conveyor belt of the first conveying mechanism.

[0030] The first transverse movement mechanism drives the lifting mechanism to move to the main conveying mechanism, and moves the storage part to the conveying path of the main conveying mechanism. The lifting mechanism controls the film storage container to descend to a preset height each time to release the cached sheets in the film storage container to the main conveying mechanism.

[0031] Through the cooperation of the main conveying mechanism and the sheet buffer mechanism, the sheet storage container can replenish the main conveying mechanism at an appropriate time to avoid interruption of the main conveying mechanism's feeding; at the same time, the sheet transported by the first conveying mechanism can be stopped in time at the loading position corresponding to the sheet storage position, avoiding sheet collision caused by conveying inertia, and because there is no need to deliberately adjust the sheet conveying speed, the sheet collection efficiency is guaranteed.

[0032] Optionally, the sheet conveying device further includes a sheet picking mechanism, which includes a first sheet picking conveyor line, a second sheet picking conveyor line, and a second transverse movement mechanism, wherein the first sheet picking conveyor line is arranged in parallel with the second sheet picking conveyor line, and the second transverse movement mechanism is configured to drive the first sheet picking conveyor line and the second sheet picking conveyor line to move as a whole along the second horizontal direction to the first position or the second position, the sheet picking end of the first sheet picking conveyor line is connected to the first flower basket, and the sheet picking end of the second sheet picking conveyor line is connected to the second flower basket;

[0033] When the first sheet-taking conveyor line and the second sheet-taking conveyor line are moved to the first position as a whole, the sheet-outlet end of the first sheet-taking conveyor line is connected to the first conveying mechanism, and the first sheet-taking conveyor line is configured to obtain the sheet in the first flower basket and convey the obtained sheet to the first conveying mechanism along the first horizontal direction; the sheet-outlet end of the second sheet-taking conveyor line is connected to the main conveying mechanism, and the second sheet-taking conveyor line is configured to obtain the sheet in the second flower basket and convey the obtained sheet to the main conveying mechanism along the first horizontal direction;

[0034] Before the sheets in the second flower basket are delivered, the sheet storage container is moved to the main conveying mechanism;

[0035] After the sheets in the second flower basket are delivered, the lifting mechanism controls the sheet storage container to descend to a preset height each time to release the temporarily stored sheets to the main conveying mechanism, the first sheet taking conveyor line and the second sheet taking conveyor line are moved to the second position as a whole, the sheet outlet end of the first sheet taking conveyor line is connected to the main conveying line mechanism, the first sheet taking conveyor line is configured to obtain the sheets of the first flower basket and convey the obtained sheets to the main conveying mechanism along the first horizontal direction, and the second sheet taking conveyor line is moved to the replenishing position to replace the second flower basket.

[0036] Through the cooperation of the first sheet-taking conveyor line, the second sheet-taking conveyor line, the second transverse movement mechanism and the storage unit, uninterrupted feeding of the main conveying mechanism is achieved, so that the main conveying mechanism will not interrupt feeding, thereby improving the conveying efficiency of the sheet.

[0037] Optionally, the sheet conveying device further comprises a second conveying mechanism, the second conveying mechanism has the same structure as the first conveying mechanism, and the second conveying mechanism is arranged on the other side of the main conveying mechanism along the first horizontal direction;

[0038] After the first film-taking conveyor line and the second film-taking conveyor line are moved to the second position as a whole and the second flower basket is replaced, the second film-taking conveyor line is configured to obtain the film in the second flower basket and convey the obtained film along the first horizontal direction to the second conveying mechanism to replenish the film storage container;

[0039] The transverse movement mechanism is further configured to drive the lifting mechanism to move to the second conveying mechanism along the second horizontal direction.

[0040] By arranging a second conveying mechanism on the other side of the main conveying mechanism along the first horizontal direction, when the first film taking conveying line is connected to the main conveying mechanism, the film storage container is replenished through the second film taking conveying line, so that the film storage container can be replenished on both sides of the main conveying mechanism, which is convenient for replenishing the film storage container and improves the replenishment efficiency of the film.

[0041] Optionally, a transition conveying mechanism is further provided in the front track of the first conveying mechanism, a feeding end of the transition conveying mechanism is connected to the first sheet-taking conveying line located at the first position, and a discharging end of the transition conveying mechanism is connected to the corresponding first conveying mechanism.

[0042] By providing a transition conveying mechanism, it is convenient to individually control the speed of the sheet entering the first conveying mechanism, which is beneficial to improving the efficiency of sheet conveying and improving the accuracy of feeding the sheet into the sheet storage container. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate and understand the technical solutions in the embodiments of the present application, the following briefly introduces the background technology of the present application and the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present application and these drawings without paying any creative work.

[0044] Figure 1 It is a three-dimensional structural schematic diagram of a sheet cache mechanism provided in an embodiment of the present application;

[0045] Figure 2 It is a schematic diagram of the three-dimensional structure of the storage part of the sheet cache mechanism provided in an embodiment of the present application;

[0046] Figure 3 It is a schematic diagram of the three-dimensional structure of a sheet storage container of a sheet buffer mechanism provided in an embodiment of the present application;

[0047] Figure 4 It is a schematic diagram of the three-dimensional structure of the first conveying mechanism of the web buffer mechanism provided in an embodiment of the present application;

[0048] Figure 5 It is a schematic diagram of the three-dimensional structure of the first adsorption component of the sheet cache mechanism provided in an embodiment of the present application;

[0049] Figure 6 It is a schematic diagram of the three-dimensional structure of the first adsorption block of the sheet cache mechanism provided in an embodiment of the present application;

[0050] Figure 7 is a schematic diagram of the three-dimensional structure of a sheet conveying device provided in an embodiment of the present application;

[0051] Figure 8 It is a three-dimensional structural schematic diagram of the sheet taking mechanism of the sheet conveying device provided in an embodiment of the present application.

[0052] Figures 1 to 8 The following reference numerals are included:

[0053] The first conveying mechanism 10, the conveying belt 11, the first conveying narrow belt 110, the second conveying narrow belt 111, the first conveying frame 112, the second conveying frame 113, the adsorption component 12, the first adsorption component 120, the first mounting block 1200, the first adsorption block 1201, the first air hole 1202, the first adsorption gap 1203, the second adsorption component 121, the second mounting block 1210, the second adsorption block 1211, the second adsorption gap 1212, and the induction member 13;

[0054] Storage part 20, lifting mechanism 21, film storage container 22, first side plate 220, second side plate 221, carrier 222, adjustment assembly 23, first transverse movement mechanism 24;

[0055] Material sheet 30;

[0056] Main conveying mechanism 40;

[0057] A first film-taking conveyor line 50, a second film-taking conveyor line 51, a second transverse movement mechanism 52, a first flower basket 53, and a second flower basket 54;

[0058] Transition conveying mechanism 60;

[0059] The first air cavity M. DETAILED DESCRIPTION

[0060] In order to make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of this application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0061] In the production process of silicon wafers and photovoltaic cells, there are many different process processing equipment such as sorting machines, cleaning machines, wafer loader, etc. It is often necessary to load the wafers into wafer storage containers such as flower baskets and buffer silos to facilitate transportation or release the wafers when there is a temporary shortage of materials at the front-end workstation to avoid interruption of feeding.

[0062] However, in the actual production process, in order to prevent the sheet conveying speed from being too high, resulting in sheet collision and damage when buffering the sheet or the sheet being unable to stay accurately at the sheet collection position, the sheet conveying speed is often set relatively low, which reduces the sheet collection efficiency.

[0063] Therefore, this application proposes a material cache mechanism, see Figure 1 , Figure 2 and Figure 7As shown, the sheet cache mechanism proposed in the embodiment of the present application includes a first conveying mechanism 10 and a storage unit 20. The first conveying mechanism 10 includes a conveyor belt 11 and an adsorption assembly 12. The conveyor belt 11 is configured to carry and move along a first horizontal direction ( Figure 1 The adsorption component 12 is arranged on the conveying path of the conveyor belt 11, the adsorption surface of the adsorption component 12 is lower than the conveying surface of the conveyor belt 11, and the adsorption component 12 is configured to downwardly adsorb the material 30 on the conveyor belt to increase the friction between the material 30 and the conveyor belt 11; the storage part 20 is arranged on the conveying path of the conveyor belt 11, the storage part 20 includes a lifting mechanism 21 and a film storage container 22, the lifting mechanism 21 is configured to drive the film storage container 22 to rise and fall, the film storage container 22 includes a plurality of film storage positions arranged along the height direction, and the lifting mechanism 21 controls the film storage container 22 to rise a preset height each time, so as to store the material 30 adsorbed by the adsorption component 12 in the corresponding film storage position.

[0064] It should be noted that solar cells may be called by different names at different stages of the process, such as wafers, silicon wafers, cell wafers, etc., any of which may be the "sheet" 30 of the present application. Moreover, the sheet may be a whole sheet or a cell slice formed by dicing and splitting a standard whole sheet.

[0065] By arranging the adsorption component 12 on the first conveying mechanism 10, the friction between the material sheet 30 on the first conveying mechanism 10 and the conveyor belt 11 can be increased, and the speed reduction of the conveyor belt 11 can be coordinated so that the material sheet 30 conveyed by the first conveying mechanism 10 can be stopped in time at the loading position corresponding to the sheet storage position, thereby avoiding the situation of colliding with the sheet or rushing through the loading position due to conveying inertia, and because there is no need to deliberately reduce the material sheet conveying speed, the sheet collection efficiency is guaranteed.

[0066] See also Figure 1 and Figure 4 As shown, as an embodiment, the conveyor belt 11 includes a first conveyor narrow belt 110 and a second conveyor narrow belt 111 arranged in parallel, the first conveyor narrow belt 110 is rotatably mounted on a first conveyor frame 112, and the second conveyor narrow belt 111 is rotatably mounted on a second conveyor frame 113; the adsorption component 12 includes a first adsorption component 120 and a second adsorption component 121, the first adsorption component 120 is arranged close to the first conveyor narrow belt 110, and the second adsorption component 121 is arranged close to the second conveyor narrow belt 111. Figure 4In the illustrated embodiment, the first adsorption component 120 and the second adsorption component 121 are both located between the first conveyor narrow belt 110 and the second conveyor narrow belt 111. Of course, they can also be both arranged outside the two conveyor narrow belts, or one is arranged inside the two conveyor narrow belts and the other is arranged outside the two conveyor narrow belts. As long as the first adsorption component 120 and the second adsorption component 121 are respectively arranged close to the first conveyor narrow belt 110 and the second conveyor narrow belt 111, they can also generate adsorption force on the material sheet carried on the conveyor belt 11.

[0067] By setting the conveyor belt 11 as a first conveyor narrow belt 110 and a second conveyor narrow belt 111 which are parallel and spaced apart, a conveyor belt 11 with a simple structure, low cost, and easy installation, debugging and maintenance is provided; at the same time, the first adsorption component 120 and the second adsorption component 121 are respectively arranged close to the first conveyor narrow belt 110 and the second conveyor narrow belt 111, so that adsorption areas extending along the conveying direction of the corresponding conveyor belt 11 can be formed on the first conveyor narrow belt 110 and the second conveyor narrow belt 111, so as to further increase the friction between the material sheet 30 and the conveyor belt 11.

[0068] It should be noted that the conveyor belt 11 can also be in the following form: the conveyor belt 11 includes a single third conveyor belt, the third conveyor belt is rotatably mounted on a third conveyor frame, a plurality of adsorption holes are provided on the conveying surface of the third conveyor belt, and the adsorption component is installed below the conveying surface of the third conveyor belt, and the adsorption component downwardly adsorbs the material sheet on the conveying surface of the third conveyor belt through the plurality of adsorption holes to increase the friction between the material sheet and the third conveyor belt.

[0069] See also Figures 4 to 6 As shown, as an embodiment, the first adsorption assembly 120 includes a first mounting block 1200 and a first adsorption block 1201, the first mounting block 1200 is fixed on the first conveying rack 112, the first adsorption block 1201 is fixedly mounted on the first mounting block 1200 and a first air cavity M is formed therebetween, the first adsorption block 1201 is provided with a first air hole 1202 communicating with the first air cavity, the first air hole 1202 is connected to a vacuum air path, a first adsorption gap 1203 communicating with the first air cavity M is provided between the first adsorption block 1201 and the first mounting block 1200, the first adsorption gap 1203 extends along a first horizontal direction, and the vacuum air path draws air from the first adsorption gap 1203 through the first air cavity M to generate a downward adsorption force on the battery cell located above the first adsorption gap 1203;

[0070] And / or, the second adsorption assembly 121 includes a second mounting block 1210 and a second adsorption block 1211, the second mounting block 1210 is fixed on the second conveying rack 113, the second adsorption block 1211 is fixedly mounted on the second mounting block 1210 and a second air cavity is formed therebetween, the second adsorption block 1211 is provided with a second air hole connected to the second air cavity, the second air hole is also connected to the vacuum air path, a second adsorption gap 1212 connected to the second air cavity is provided between the second adsorption block 1211 and the second mounting block 1210, the second adsorption gap 1212 extends along the first horizontal direction, the vacuum air path draws air from the second adsorption gap 1212 through the second air cavity to generate a downward adsorption force on the battery cell located above the second adsorption gap 1212.

[0071] Through the cooperation of the first air hole 1202, the first air cavity M, the first adsorption gap 1203 and the vacuum air path, a vacuum negative pressure can be generated in the conveying direction of the first conveying narrow belt 110, and the material sheet on the first conveying narrow belt 110 can be adsorbed downward by the vacuum negative pressure; through the cooperation of the second air hole 1202, the second air cavity and the second adsorption gap 1212, a vacuum negative pressure can be generated in the conveying direction of the second conveying narrow belt 111, and the material sheet on the second conveying narrow belt 111 can be adsorbed downward by the vacuum negative pressure; at the same time, the first mounting block 1200 and the second mounting block 1210 are directly mounted on the first conveying frame 112 and the second conveying frame 113 respectively, which occupies a small space, avoids mechanical interference, and is convenient for installation and maintenance.

[0072] As an embodiment, the conveyor belt 11 includes a first conveyor narrow belt 110 and a second conveyor narrow belt 111 arranged in parallel, the first conveyor narrow belt 110 is rotatably mounted on a first conveyor frame 112, and the second conveyor narrow belt 111 is rotatably mounted on a second conveyor frame 113; the adsorption component 12 includes two third adsorption components, and the two third adsorption components are arranged between the first conveyor narrow belt 110 and the second conveyor narrow belt 111 at intervals along the conveying direction of the material sheet; or, the adsorption component 12 includes a third adsorption component, and the third adsorption component is arranged in the middle position between the first conveyor narrow belt 110 and the second conveyor narrow belt 111.

[0073] Optionally, the third adsorption component can be a vacuum suction cup, a Bernoulli suction cup, or any other type of suction cup, all of which can achieve a corresponding adsorption effect.

[0074] By arranging two third adsorption components between the first conveyor narrow belt 110 and the second conveyor narrow belt 111 along the conveying direction of the material sheet, two adsorption areas for downwardly adsorbing the material sheet on the conveyor belt can be generated between the first conveyor narrow belt 110 and the second conveyor narrow belt 111 along the conveying direction of the material sheet, so as to better control the deceleration of the material sheet; by arranging a third adsorption component between the first conveyor narrow belt 110 and the second conveyor narrow belt 111, an adsorption force for downwardly adsorbing the material sheet on the conveyor belt can be generated between the first conveyor narrow belt 110 and the second conveyor narrow belt 111, thereby simplifying the overall structure and facilitating the disassembly, assembly and maintenance of the adsorption components.

[0075] See also Figures 1 to 3 As shown, as an embodiment, the wafer storage container 22 includes a second horizontal direction ( Figure 1 A first side plate 220 and a second side plate 221 are parallel and correspondingly arranged, and a plurality of supporting members 222 arranged at intervals in the height direction are arranged on opposite surfaces of the first side plate 220 and the second side plate 221. Two supporting members 222 at the same height form a sheet storage position to jointly carry a sheet.

[0076] Optionally, the first side panel 220 and the second side panel 221 are not limited to long, rectangular thin plate structures, and cylindrical pillars can also be used as side panels (for example, the pillars on the sides of the flower basket). The pillars can also be provided with supporting parts 222 and can also achieve the same effect of supporting the material sheets. Technical personnel in this field can make corresponding choices based on actual conditions.

[0077] Optionally, the film storage container 22 further includes an adjustment component 23, the first side plate 220 and the second side plate 221 are installed together at the driving end of the adjustment component 23, and the adjustment component 23 is configured to adjust the distance between the first side plate 220 and the second side plate 221 to adapt to sheets of different sizes, or to avoid sheets being conveyed through. Specifically, the adjustment component 23 includes a motor, a synchronous belt pulley structure, and a guide member, the first side plate 220 and the second side plate 221 are both slidably arranged on the guide member, the two side belt bodies of the synchronous belt extend along the guide member respectively, and the first side plate 220 and the second side plate 221 are fixedly connected to the two side belt bodies of the synchronous belt respectively. When the motor drives the synchronous wheel to rotate, the first side plate 220 and the second side plate 221 are respectively driven by the two side belt bodies to approach or move away from each other.

[0078] Through the cooperation of the first side plate 220, the second side plate 221 and the plurality of carriers 222, a plurality of wafer storage positions can be formed in the height direction of the wafer storage container 22, providing a wafer storage container 22 with a simple structure and low cost. In addition, the setting of the adjustment component 23 can quickly adapt to sheets of various sizes, and provides convenience for continuous and automatic wafer storage and placement.

[0079] See also Figure 1 and Figure 4 As shown, as an embodiment, a sensing element 13 is further provided on the conveying path of the conveyor belt 11, and the sensing element 13 is configured to detect whether the material sheet is at a preset position. The sensing element 13 is also configured to send a sensing signal to the control component after detecting that the material sheet is at the preset position, and the control component is configured to control the adsorption component 12 to generate an adsorption force and control the conveyor belt 11 to decelerate after receiving the sensing signal. As known to those skilled in the art, at least one sensing element 13 can be provided.

[0080] Through the cooperation of the induction element 13 and the control component, the adsorption force of the adsorption component 12 and the conveying speed of the conveyor belt 11 are automatically controlled.

[0081] As an implementation mode, the control component controls the adsorption component 12 to generate a gradually increasing adsorption force after receiving the feedback signal; or, the control component controls the adsorption component 12 to generate a fixed adsorption force after receiving the feedback signal.

[0082] The control part controls the gradually increasing or constant adsorption force generated by the adsorption component 12, so that the friction between the material sheet on the conveyor belt 11 and the conveyor belt 11 becomes larger, and then the speed of the conveyor belt 11 and the material sheet carried by the conveyor belt 11 gradually decreases, further ensuring that the material sheet can stop at the loading position corresponding to the storage position in time and accurately, so as to facilitate the storage part to receive the material sheet on the conveyor belt.

[0083] Optionally, the above-mentioned material caching mechanism can be applied to a variety of photovoltaic processing equipment (specifically, it can be applied to at least the caching position or material unloading position of different models), such as a wafer storage machine, a sorting machine, a cleaning machine, a wafer splitting machine, etc. It can significantly slow down the material and temporarily store it in a very short time, thereby improving production efficiency.

[0084] Compared with the prior art, the material cache mechanism proposed in this embodiment has the following advantages:

[0085] 1) The adsorption of the sheet by the adsorption component increases the friction between the sheet on the first conveying mechanism and the conveyor belt, and the conveyor belt is slowed down, so that the sheet conveyed by the first conveying mechanism can stop in time and accurately at the loading position corresponding to the sheet storage position, avoiding the collision caused by the conveying inertia, and ensuring the efficiency of sheet collection because there is no need to adjust the sheet conveying speed. In fact, while the sheet buffer mechanism ensures accurate sheet collection, the conveying speed of the path ahead of the loading position can be set higher to further save the time of sheet collection and significantly improve production efficiency.

[0086] 2) Adsorption areas extending along the conveying direction of the corresponding conveyor belts can be formed on both the first conveyor narrow belt and the second conveyor narrow belt to further increase the friction between the sheet and the conveyor belts and improve the deceleration effect of the first conveying mechanism.

[0087] 3) The overall structure of the adsorption component is simple, occupies a small space, will not interfere with other motion mechanisms, has low cost, and is easy to install or maintain.

[0088] 4) The adsorption force of the adsorption component can gradually increase, thereby gradually reducing the material sheets on the conveyor belt and the speed of the conveyor belt, making it easier for the storage unit to accurately store the material sheets on the conveyor belt.

[0089] Second, see Figure 2 and Figure 7 As shown, the present application also proposes a sheet conveying device. The sheet conveying device proposed in the embodiment of the present application includes a main conveying mechanism 40 and at least one set of sheet buffer mechanisms, wherein:

[0090] The first conveying mechanism 10 is arranged in parallel with the main conveying mechanism 40, and the storage unit 20 further includes a first transverse movement mechanism 24, which is configured to at least drive the lifting mechanism 21 and the film storage container 22 to move alternately to the first conveying mechanism 10 and the main conveying mechanism 40 along the second horizontal direction, and the first horizontal direction is perpendicular to the second horizontal direction;

[0091] The first transverse movement mechanism 24 drives the lifting mechanism 21 to move to the first conveying mechanism 10, and moves the storage unit 20 to the conveying path of the conveyor belt 11 of the first conveying mechanism 10. The lifting mechanism 21 controls the film storage container 22 to rise to a preset height each time to receive the material 30 conveyed by the conveyor belt 11 of the first conveying mechanism 10.

[0092] The first transverse movement mechanism 24 drives the lifting mechanism 21 to move to the main conveying mechanism 40, and moves the storage unit 20 to the conveying path of the main conveying mechanism 40. The lifting mechanism 21 controls the film storage container 22 to descend to a preset height each time to release the cached sheets in the film storage container 22 to the main conveying mechanism 40.

[0093] Through the cooperation of the main conveying mechanism 40 and the material buffer mechanism, the main conveying mechanism 40 can be replenished at an appropriate time to avoid interruption of the material feeding of the main conveying mechanism 40; at the same time, the material 30 conveyed by the first conveying mechanism 10 can be stopped in time at the loading position corresponding to the storage position, avoiding collision caused by conveying inertia, and because there is no need to deliberately adjust the material conveying speed, the sheet collection efficiency is guaranteed.

[0094] See also Figure 7 and Figure 8As shown, as an embodiment, the sheet conveying device also includes a sheet picking mechanism, which includes a first sheet picking conveyor line 50, a second sheet picking conveyor line 51 and a second transverse movement mechanism 52. The first sheet picking conveyor line 50 is arranged in parallel with the second sheet picking conveyor line 51, and the second transverse movement mechanism 52 is configured to drive the first sheet picking conveyor line 50 and the second sheet picking conveyor line 51 to move as a whole to the first position or the second position along the second horizontal direction, and the sheet picking end of the first sheet picking conveyor line 50 is connected to the first flower basket 53, and the sheet picking end of the second sheet picking conveyor line 51 is connected to the second flower basket 54; when the first sheet picking conveyor line 50 and the second sheet picking conveyor line 51 are moved as a whole to the first position, the sheet outlet end of the first sheet picking conveyor line 50 is connected to the first conveying mechanism 10, and the first sheet picking conveyor line 50 is configured to obtain the sheet in the first flower basket 53 and convey the obtained sheet to the first conveying mechanism 10 along the first horizontal direction; The sheet outlet end of the sheet taking conveyor line 51 is connected to the main conveying mechanism 40, and the second sheet taking conveyor line 51 is configured to obtain the sheet in the second flower basket 54 and convey the obtained sheet to the main conveying mechanism 40 along the first horizontal direction; before the sheet in the second flower basket 54 is delivered, the sheet storage container 22 is moved to the top of the main conveying mechanism 40; after the sheet in the second flower basket 54 is delivered, the lifting mechanism 21 controls the sheet storage container 22 to descend to a preset height each time to release the temporarily stored sheet to the main conveying mechanism 40, and the first sheet taking conveyor line 50 and the second sheet taking conveyor line 51 are moved to the second position as a whole, and the sheet outlet end of the first sheet taking conveyor line 50 is connected to the main conveying mechanism 40, and the first sheet taking conveyor line 50 is configured to obtain the sheet of the first flower basket 53 and convey the obtained sheet to the main conveying mechanism 40 along the first horizontal direction, and the second sheet taking conveyor line 51 moves to the replenishing position to replace the second flower basket 54.

[0095] Through the cooperation of the first film taking conveyor line 50, the second film taking conveyor line 51, the second transverse movement mechanism 52 and the storage unit 20, uninterrupted feeding to the main conveying mechanism 40 is achieved, so that the main conveying mechanism 40 will not interrupt the feeding, thereby improving the conveying efficiency of the film.

[0096] As an embodiment, the sheet conveying device further includes a second conveying mechanism, the second conveying mechanism and the first conveying mechanism 10 have the same structure, and the second conveying mechanism is arranged on the other side of the main conveying mechanism 40 along the first horizontal direction. Preferably, the second conveying mechanism and the first conveying mechanism 10 are symmetrically arranged along the main conveying mechanism 40;

[0097] After the first film taking conveyor line 50 and the second film taking conveyor line 51 are moved to the second position as a whole and the second flower basket 54 is replaced, the second film taking conveyor line 51 is configured to obtain the film in the new second flower basket 54 and convey the obtained film along the first horizontal direction to the second conveying mechanism to replenish the film storage container; the first transverse movement mechanism 24 is also configured to drive the lifting mechanism 21 to move along the second horizontal direction to the second conveying mechanism.

[0098] By arranging a second conveying mechanism on the other side of the main conveying mechanism 40 along the first horizontal direction, when the first film taking conveying line 50 is connected to the main conveying mechanism 40, the film storage container 22 is replenished through the second film taking conveying line 51, so that the film storage container can be replenished on both sides of the main conveying mechanism 40, which is convenient for replenishing the film storage container and improves the replenishment efficiency of the film.

[0099] As an embodiment, a transition conveying mechanism 60 is further provided in front of the first conveying mechanism 10, the feeding end of the transition conveying mechanism 60 is connected to the first sheet-taking conveying line 50 located at the first position, and the discharging end of the transition conveying mechanism 60 is connected to the corresponding first conveying mechanism 10. Optionally, there are two transition conveying mechanisms 60, which are symmetrically arranged on both sides of the main conveying mechanism 40.

[0100] By providing the transition conveying mechanism 60, it is convenient to individually control the speed of the sheet entering the first conveying mechanism 10, which is beneficial to improving the efficiency of sheet conveying and improving the accuracy of feeding the sheet into the sheet storage container.

[0101] Compared with the prior art, the sheet conveying device proposed in this embodiment has the following advantages:

[0102] 1) The uninterrupted feeding of the main conveying mechanism is realized, so that the main conveying mechanism will not interrupt the feeding, thereby improving the conveying efficiency of the sheet.

[0103] 2) The wafer storage container can be refilled on both sides of the main conveying mechanism, which is convenient for refilling the wafer storage container, so as to realize continuous and automatic wafer storage and release, and improve the efficiency of wafer refilling.

[0104] The above embodiments are only to illustrate the basic principles and characteristics of the present application. The present application is not limited by the above examples. Without departing from the spirit and scope of the present application, the present application may be subject to various changes and modifications, which are within the scope of the present application to be protected. The scope of protection claimed in the present application is defined by the attached claims and their equivalents.

Claims

1. A sheet caching mechanism, characterized in that: The sheet buffer mechanism comprises a first conveying mechanism and a storage unit, wherein: The first conveying mechanism comprises a conveyor belt and an adsorption component, the conveyor belt is configured to carry and convey the web along a first horizontal direction, the adsorption component is arranged on the conveying path of the conveyor belt, the adsorption surface of the adsorption component is lower than the conveying surface of the conveyor belt, and the adsorption component is configured to adsorb the web on the conveyor belt downwards to increase the friction between the web and the conveyor belt; The storage unit is arranged on the conveying path of the conveyor belt, and the storage unit includes a lifting mechanism and a film storage container. The lifting mechanism is configured to drive the film storage container to rise and fall, and the film storage container includes a plurality of film storage positions arranged along the height direction. The lifting mechanism controls the film storage container to rise to a preset height each time so as to store the material sheets adsorbed by the adsorption component in the corresponding film storage position.

2. The sheet caching mechanism according to claim 1, characterized in that: The conveyor belt comprises a first conveyor narrow belt and a second conveyor narrow belt arranged in parallel, wherein the first conveyor narrow belt is rotatably mounted on a first conveyor frame, and the second conveyor narrow belt is rotatably mounted on a second conveyor frame; The adsorption component includes a first adsorption component and a second adsorption component. The first adsorption component is arranged close to the first conveying narrow belt, and the second adsorption component is arranged close to the second conveying narrow belt.

3. The sheet caching mechanism according to claim 2, characterized in that: The first adsorption assembly includes a first mounting block and a first adsorption block, the first mounting block is fixed on the first conveying rack, the first adsorption block is fixedly mounted on the first mounting block and a first air cavity is formed therebetween, the first adsorption block is provided with a first air hole communicating with the first air cavity, the first air hole is connected to a vacuum air path, a first adsorption gap communicating with the first air cavity is provided between the first adsorption block and the first mounting block, the first adsorption gap extends along the first horizontal direction, the vacuum air path draws air from the first adsorption gap through the first air cavity, so as to generate a downward adsorption force on the battery sheet located above the first adsorption gap; And / or, the second adsorption assembly includes a second mounting block and a second adsorption block, the second mounting block is fixed on the second conveying rack, the second adsorption block is fixedly mounted on the second mounting block and a second air cavity is formed therebetween, the second adsorption block is provided with a second air hole connected to the second air cavity, the second air hole is connected to a vacuum air path, a second adsorption gap connected to the second air cavity is provided between the second adsorption block and the second mounting block, the second adsorption gap extends along the first horizontal direction, and the vacuum air path draws air from the second adsorption gap through the second air cavity to generate a downward adsorption force on the battery cell located above the second adsorption gap.

4. The sheet caching mechanism according to claim 1, characterized in that: The conveyor belt comprises a first conveyor narrow belt and a second conveyor narrow belt arranged in parallel, wherein the first conveyor narrow belt is rotatably mounted on a first conveyor frame, and the second conveyor narrow belt is rotatably mounted on a second conveyor frame; The adsorption assembly includes two third adsorption assemblies, and the two third adsorption assemblies are arranged between the first narrow conveyor belt and the second narrow conveyor belt at intervals; or, The adsorption assembly includes a third adsorption assembly, and the third adsorption assembly is arranged in the middle position of the first conveying narrow belt and the second conveying narrow belt.

5. The sheet caching mechanism according to claim 1, characterized in that: The sheet storage container includes a first side plate and a second side plate which are parallel and correspondingly arranged along a second horizontal direction, and a plurality of carriers which are arranged at intervals in a height direction are arranged on opposite surfaces of the first side plate and the second side plate, and two carriers of the same height form a sheet storage position to jointly carry one sheet.

6. The sheet caching mechanism according to claim 1, characterized in that: A sensing element is also provided on the conveying path of the conveyor belt, and the sensing element is configured to detect whether the material sheet is at a preset position. The sensing element is also configured to send a sensing signal to a control component after detecting that the material sheet is at the preset position. The control component is configured to control the adsorption component to generate adsorption force and control the conveyor belt to slow down after receiving the sensing signal.

7. The sheet caching mechanism according to claim 6, characterized in that: The control component controls the adsorption component to generate a gradually increasing adsorption force after receiving the feedback signal; or, After receiving the feedback signal, the control component controls the adsorption assembly to generate a fixed adsorption force.

8. A sheet conveying device, characterized in that: The sheet conveying device comprises a main conveying mechanism and at least one sheet buffering mechanism according to any one of claims 1 to 7, wherein: The first conveying mechanism is arranged in parallel with the main conveying mechanism, and the storage unit further comprises a first transverse movement mechanism, which is configured to drive the lifting mechanism to move alternately to the first conveying mechanism and the main conveying mechanism along a second horizontal direction, and the first horizontal direction is perpendicular to the second horizontal direction; The first transverse movement mechanism drives the lifting mechanism to move to the first conveying mechanism, and moves the storage part to the conveying path of the conveyor belt of the first conveying mechanism. The lifting mechanism controls the film storage container to rise to a preset height each time to receive the film conveyed by the conveyor belt of the first conveying mechanism. The first transverse movement mechanism drives the lifting mechanism to move to the main conveying mechanism and enables the storage part to move to the conveying path of the main conveying mechanism. The lifting mechanism controls the film storage container to descend to a preset height each time to release the cached sheets in the film storage container to the main conveying mechanism.

9. The sheet conveying device according to claim 8, characterized in that: The sheet conveying device further includes a sheet picking mechanism, which includes a first sheet picking conveying line, a second sheet picking conveying line, and a second transverse movement mechanism, wherein the first sheet picking conveying line is arranged in parallel with the second sheet picking conveying line, and the second transverse movement mechanism is configured to drive the first sheet picking conveying line and the second sheet picking conveying line to move as a whole along a second horizontal direction to a first position or a second position, wherein a sheet picking end of the first sheet picking conveying line is connected to a first flower basket, and a sheet picking end of the second sheet picking conveying line is connected to a second flower basket; When the first sheet-taking conveyor line and the second sheet-taking conveyor line are moved to the first position as a whole, the sheet-taking conveyor line's sheet-out end is butted against the first conveying mechanism, and the first sheet-taking conveyor line is configured to obtain the sheet in the first flower basket and convey the obtained sheet to the first conveying mechanism along the first horizontal direction; the sheet-taking conveyor line's sheet-out end is butted against the main conveying mechanism, and the second sheet-taking conveyor line is configured to obtain the sheet in the second flower basket and convey the obtained sheet to the main conveying mechanism along the first horizontal direction; Before the sheets in the second flower basket are delivered out, the sheet storage container is moved to the main conveying mechanism; After the sheets in the second flower basket are delivered, the lifting mechanism controls the sheet storage container to descend to a preset height each time to release the temporarily stored sheets to the main conveying mechanism, the first sheet taking conveyor line and the second sheet taking conveyor line are moved to the second position as a whole, the sheet outlet end of the first sheet taking conveyor line is connected to the main conveying mechanism, the first sheet taking conveyor line is configured to obtain the sheets of the first flower basket and convey the obtained sheets to the main conveying mechanism along the first horizontal direction, and the second sheet taking conveyor line is moved to the replenishing position to replace the second flower basket.

10. The sheet conveying device according to claim 9, characterized in that: The sheet conveying device further comprises a second conveying mechanism, the second conveying mechanism and the first conveying mechanism have the same structure, and the second conveying mechanism is arranged on the other side of the main conveying mechanism along the first horizontal direction; After the first film-taking conveyor line and the second film-taking conveyor line are moved to the second position as a whole and the second flower basket is replaced, the second film-taking conveyor line is configured to obtain the film in the second flower basket and convey the obtained film along the first horizontal direction to the second conveying mechanism to replenish the film storage container; The transverse movement mechanism is further configured to drive the lifting mechanism to move to the second conveying mechanism along a second horizontal direction.

11. The sheet conveying device according to claim 9, characterized in that: The front track of the first conveying mechanism is also provided with a transition conveying mechanism, the feeding end of the transition conveying mechanism is connected to the first sheet-taking conveying line located at the first position, and the discharging end of the transition conveying mechanism is connected to the corresponding first conveying mechanism.

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