Chain type drying device for drying photovoltaic silicon wafers

Abstract

The utility model relates to the technical field of photovoltaic silicon wafer production equipment, and aims to solve the technical problem of poor drying effect. In order to solve the technical problem, the utility model provides the chain type drying device for drying the photovoltaic silicon wafer. The utility model comprises: a workbench assembly; the discharging assembly is arranged at the front end of the platform. The discharging assembly is arranged at the tail end of the platform. The discharging assembly comprises a discharging station. The drying assembly is arranged in the middle of the platform; the drying assembly comprises a drying box body, a pre-drying station, a main drying station and a heating part. The front end and the rear end of the drying box body are each provided with a door body capable of being opened and closed. The pre-drying station is arranged close to a door body at the front end of the drying box body; the heating part is used for drying a to-be-dried workpiece placed in the drying box body; the conveying assembly is arranged in the platform and used for switching the workpieces to be dried among the discharging station, the pre-drying station, the main drying station and the discharging station. The drying device improves the drying effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic silicon wafer production technical field especially is a chain type drying device for photovoltaic silicon wafer drying. BACKGROUND

[0002] After the silicon wafer cleaning treatment, drying is one of the important processes. In the tank type machine, generally through the internal circulation, namely the gas in the tank passes through the high pressure fan suction, then enters the tank body through the PTC heating, when there is no silicon wafer in the tank, fresh air is supplemented.

[0003] The drying station is close to the door body, and when the door body is opened or closed, the temperature of the drying station is affected, resulting in uneven drying, affecting the drying effect and reducing the drying efficiency. UTILITY MODEL CONTENT

[0004] Therefore, the utility model wants to solve the technical problem in the prior art.

[0005] To solve the above technical problems, the utility model provides a chain type drying device for photovoltaic silicon wafer drying, which comprises:

[0006] The workbench assembly comprises a platform.

[0007] The feeding assembly is arranged at the front end of the platform, and comprises a feeding station.

[0008] The discharging assembly is arranged at the end of the platform, and comprises a discharging station.

[0009] The drying assembly is arranged at the middle part of the platform, and comprises a drying box, a pre-drying station, a main drying station and a heating component. The drying box is provided with openable doors at the front and rear ends. The pre-drying station and the main drying station are arranged in the drying box, and the pre-drying station is arranged close to the door at the front end of the drying box. The heating component is used for drying the workpieces placed in the drying box.

[0010] The conveying assembly is arranged in the platform and is used for switching the workpieces between the feeding station, the pre-drying station, the main drying station and the discharging station.

[0011] In an embodiment of the utility model, the feeding station comprises a first feeding station, which is used for placing a plurality of workpieces to be dried. The pre-drying station and the main drying station are also used for placing a plurality of workpieces to be dried. The number of workpieces to be dried in the first feeding station, the pre-drying station and the main drying station is the same.

[0012] In an embodiment of the utility model, the application further comprises a weighing assembly arranged at the front end of the platform, and the weighing assembly is connected with the platform.

[0013] In one embodiment of the utility model, the material placing station further comprises a second material placing station arranged on the top of the platform, the second material placing station is arranged on the front side of the weighing assembly, and the second material placing station is used for placing one workpiece to be dried.

[0014] In one embodiment of the utility model, the drying assembly further comprises a secondary drying station arranged in the drying box body, and the secondary drying station is arranged between the primary drying station and the discharging station.

[0015] In one embodiment of the utility model, the material placing assembly, the drying assembly and the conveying assembly form a drying line; the drying line is multiple, and the multiple drying lines are arranged side by side.

[0016] In one embodiment of the utility model, the conveying assembly comprises a moving part arranged below the platform and a jacking part; the jacking part is connected to the top of the moving part, the moving part drives the jacking part to move along the extension direction of the platform; the jacking part comprises a jacking piece and a supporting piece connected to the jacking piece; the platform is provided with a through hole, and the jacking piece drives the supporting piece to rise and fall in the through hole.

[0017] In one embodiment of the utility model, the jacking part is two, and the two jacking parts are arranged at two ends of the workbench assembly. Among the two jacking parts, one jacking part switches and conveys the workpiece to be dried between the material placing station, the pre-drying station and the primary drying station; the other jacking part switches and conveys the workpiece to be dried between the primary drying station, the secondary drying station and the discharging station.

[0018] In one embodiment of the utility model, the platform is provided with a plurality of flow guide holes at the bottom of the pre-drying station and the primary drying station; the plurality of flow guide holes extend along the width direction of the platform and are arranged at intervals along the length direction of the platform.

[0019] In one embodiment of the utility model, the utility model further comprises a control assembly; the door body is an automatic door; the control assembly is electrically connected with the door body, the heating part and the conveying assembly.

[0020] The above technical scheme of the utility model has the following advantages compared with the prior art:

[0021] The chain type drying device for photovoltaic silicon wafer drying has the advantages that the pre-drying station is close to the door body, so that the pre-drying station is separated from the main drying station, when the door body is opened, the temperature of the pre-drying station is influenced, but the temperature of the main drying station is not influenced, so that the temperature of the main drying station is more stable, and the drying speed is accelerated by pre-drying at the pre-drying station and drying at the main drying station. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to make the content of the utility model more easily understood clearly, the following is according to the specific embodiment of the utility model and combines the drawings, and the utility model is further detailed, wherein:

[0023] Figure 1 It is a three-dimensional schematic view of the chain type drying device for photovoltaic silicon wafer drying in the preferred embodiment of the utility model;

[0024] Figure 2 It is Figure 1 The three-dimensional schematic view (not including the drying box body) of the chain type drying device for photovoltaic silicon wafer drying;

[0025] Figure 3 It is Figure 1 The top view of the chain type drying device for photovoltaic silicon wafer drying;

[0026] Figure 4 It is Figure 1 The back view schematic view of the chain type drying device for photovoltaic silicon wafer drying;

[0027] Figure 5 It is Figure 1 The structure schematic view of the conveying assembly in the chain type drying device for photovoltaic silicon wafer drying;

[0028] Figure 6 It is Figure 1 The internal schematic view of the drying assembly in the chain type drying device for photovoltaic silicon wafer drying;

[0029] Description of the drawing of the specification: 100, workbench assembly;110, platform;111, through hole;120, bottom frame;

[0030] 200, discharging assembly;210, first discharging station;211, first discharging support seat group;211a, support seat;220, second discharging station;

[0031] 300, discharging assembly;310, discharging station;

[0032] 400, drying assembly; 410, drying box body; 411, air inlet; 412, air outlet; 420, pre-drying station; 430, main drying station; 440, door body; 450, secondary drying station;

[0033] 500, conveying assembly; 510, moving part; 511, power member; 512, gear; 513, rack; 520, jacking part; 521, jacking member; 522, support member;

[0034] 600, flower basket;

[0035] 700, weighing assembly;

[0036] 800, flow guide hole. DETAILED DESCRIPTION

[0037] The utility model will be further explained in connection with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0038] Referring to Figures 1-6 The utility model embodiment provides a chain type drying device for photovoltaic silicon wafer drying, which comprises:

[0039] The workbench assembly 100 comprises a platform 110 and a bottom frame 120, and the bottom frame 120 is connected to the bottom of the platform 110.

[0040] The discharging assembly 200 is arranged at the front end of the platform 110, and the discharging assembly 200 comprises a discharging station; the discharging station is connected to automation, and the flower basket 600 is placed.

[0041] The discharging assembly 300 is arranged at the end of the platform 110, and the discharging assembly 300 comprises a discharging station 310.

[0042] The drying assembly 400 is arranged at the middle part of the platform 110, and the drying assembly 400 comprises a drying box body 410, a pre-drying station 420, a main drying station 430 and a heating member; the drying box body 410 is provided with openable and closable door bodies 440 at both ends; the pre-drying station 420 and the main drying station 430 are arranged in the drying box body 410, and the pre-drying station 420 is arranged close to the door body 440 at the front end of the drying box body 410; the heating member is used for drying the workpiece to be dried placed in the drying box body 410.

[0043] The conveying assembly 500 is arranged in the platform 110, and the conveying assembly 500 is used for switching the workpiece to be dried between the discharging station, the pre-drying station 420, the main drying station 430 and the discharging station 310.

[0044] Specifically, the pre-drying station 420 is arranged in the drying assembly 400, and the pre-drying station 420 is separated from the main drying station 430 due to the pre-drying station 420 being closer to the door body 440. When the door body 440 is opened, the temperature of the pre-drying station 420 is affected, but the temperature of the main drying station 430 is not affected, so that the temperature of the main drying station 430 is more stable. In addition, the temperature of the pre-drying station 420 changes to the main drying station 430, that is, pre-drying is performed at the pre-drying station 420, and then drying is performed at the main drying station 430, so that the drying speed can be accelerated. Therefore, the drying is more uniform, the drying effect is improved, and the drying efficiency is improved.

[0045] Further, the feeding station includes a first feeding station 210 for placing a plurality of workpieces to be dried; the pre-drying station 420 and the main drying station 430 are also used for placing a plurality of workpieces to be dried; the number of workpieces to be dried in the first feeding station 210, the pre-drying station 420 and the main drying station 430 is the same. In some embodiments, the first feeding station 210 includes a plurality of (for example, three) first feeding support seat groups 211 for placing workpieces to be dried, and the first feeding support seat groups 211 are connected to the top of the platform 110. The pre-drying station 420 includes a plurality of (for example, three) pre-drying support seat groups for placing workpieces to be dried, and the pre-drying support seat groups are connected to the top of the platform 110. The main drying station 430 includes a plurality of (for example, three) main drying support seat groups for placing workpieces to be dried, and the main drying support seat groups are connected to the top of the platform 110. Similarly, the unloading station 310 is also provided with a plurality of (for example, three) unloading support seat groups for placing workpieces to be dried, and the unloading support seat groups are connected to the top of the platform 110. In some possible embodiments, the first feeding support seat groups 211, the pre-drying support seat groups, the main drying support seat groups and the unloading support seat groups have the same structure. For example, each feeding support seat group includes two support seats 211a, and the two support seats 211a are arranged at intervals along the width direction of the platform 110 and support the two ends of the flower basket 600 in which the workpieces to be dried are placed. The inner side of the top of the support seat 211a is provided with a clamping groove matched with the end of the flower basket 600, so that the flower basket 600 is fixed by the two support seats 211a.

[0046] Specifically, the pre-drying station 420 is arranged in the drying assembly 400, and the pre-drying station 420 is separated from the main drying station 430 due to the pre-drying station 420 being closer to the door body 440. When the door body 440 is opened, the temperature of the pre-drying station 420 is affected, but the temperature of the main drying station 430 is not affected, so that the temperature of the main drying station 430 is more stable. In addition, the temperature of the pre-drying station 420 changes to the main drying station 430, that is, pre-drying is performed at the pre-drying station 420, and then drying is performed at the main drying station 430, so that the drying speed can be accelerated. Therefore, the drying is more uniform, the drying effect is improved, and the drying efficiency is improved.

[0047] Further, the application also includes a weighing assembly 700 arranged at the front end of the platform 110; the weighing assembly 700 is connected with the platform 110. In the case that the feeding stations include a first feeding station 210 and a second feeding station 220, the weighing assembly 700 is arranged between the first feeding station 210 and the second feeding station 220. Since the chemical corrosion in the previous cleaning process will cause weight loss, the weighing station is arranged in the present process, so that the weight of the workpiece to be dried is weighed before entering the drying box 410, and the weighing information is transmitted to the discharging station 310, and the product is removed after being dried in the drying box 410.

[0048] Further, the feeding station also includes a second feeding station 220 arranged at the top of the platform 110, the second feeding station 220 is arranged at the front side of the weighing assembly 700, and the second feeding station 220 is used to place a workpiece to be dried. It should be noted that the second feeding station 220 is provided with a second feeding support seat group, and the structure of the second feeding support seat group is the same as that of the first feeding support seat group 211, which will not be repeated here.

[0049] Specifically, since the amount of weight loss caused by chemical corrosion in the previous cleaning process is relatively small, the workpieces to be dried need to be weighed one by one, so the application sets the second feeding station 220.

[0050] Further, the drying assembly 400 also includes a secondary drying station 450 arranged in the drying box 410, and the secondary drying station 450 is arranged between the main drying station 430 and the discharging station 310.

[0051] Specifically, the secondary drying station 450 in the present embodiment can separate the door body 440 at the end of the drying box 410 from the main drying station 430, so that the influence of opening the door body 440 at the end on the drying temperature of the main drying station 430 can be avoided; in addition, the secondary drying station 450 can further dry after the main drying station 430. Therefore, the present embodiment can further ensure the drying effect and improve the drying efficiency.

[0052] Further, the feeding assembly 200, the drying assembly 400 and the conveying assembly 500 form a drying line; the drying line is multiple (for example, two), and multiple drying lines are arranged side by side. In some embodiments, the two drying lines can share one conveying assembly 500.

[0053] Specifically, the present embodiment can simultaneously dry multiple workpieces, improving the efficiency.

[0054] Further, the conveying assembly 500 comprises a moving component 510 and a jacking component 520 located below the platform 110; the jacking component 520 is connected to the top of the moving component 510, the moving component 510 drives the jacking component 520 to move along the extension direction of the platform 110; the jacking component 520 comprises a jacking member 521 and a supporting member 522 connected to the jacking member 521; the platform 110 is provided with a through hole 111, and the jacking member 521 drives the supporting member 522 to rise and fall in the through hole 111. Thus, the workpiece to be baked placed on the feeding station, the pre-baking station 420, the main baking station 430 or the discharging station 310 is lifted. In some embodiments, the jacking member 521 is a cylinder. For example, a pneumatic cylinder, a hydraulic cylinder, etc.

[0055] Specifically, the workpiece to be baked is lifted from the corresponding station by the rising of the supporting member 522, then the supporting member 522 is moved to the next station by the moving component 510, and then the workpiece to be baked is placed in the station by the falling of the supporting member 522. The structure of the present application is simple, stable in operation and reasonable in layout.

[0056] Further, the conveying assembly 500 further comprises a sliding component, which comprises a guide rail and a sliding block matched with the guide rail; the guide rail is connected with the workbench assembly 100, and the sliding block is connected with the jacking component 520. In some possible embodiments, the sliding component is two, and the two sliding components are arranged side by side along the width direction of the workbench assembly 100.

[0057] Specifically, the sliding component of the present embodiment can play a guiding role when the moving component 510 drives the jacking component 520 to move.

[0058] Further, the jacking component 520 is two, and the two jacking components 520 are arranged at the two ends of the workbench assembly 100. Among the two jacking components 520, one jacking component 520 switches and conveys the workpiece to be baked between the feeding station, the pre-baking station 420 and the main baking station 430; and the other jacking component 520 switches and conveys the workpiece to be baked between the main baking station 430, the secondary baking station 450 and the discharging station 310.

[0059] Specifically, the present embodiment switches and conveys by two jacking components 520, which improves the conveying efficiency.

[0060] In some embodiments, the moving component 510 further comprises a power component 511, a gear 512 and a rack 513; the power component 511 is connected with the jacking component 520, an output shaft of the power component 511 is connected with the gear 512; the rack 513 is connected with the workbench assembly 100, and the rack 513 is engaged with the gear 512. Specifically, the present embodiment realizes the switching and conveying of the workpiece to be dried among the feeding station, the pre-drying station 420, the main drying station 430 and the discharging station 310 through the engagement of the gear 512 and the gear 512, which is stable and reliable in structure and smooth in operation. In other embodiments, the moving component 510 can realize the moving function through the cooperation of a lead screw and a lead screw nut, which is a prior art and will not be described here.

[0061] In some comparative embodiments, the air volume is uneven, resulting in different drying effects in the middle and both ends, and even the silicon wafers at both ends cannot be dried. To solve the above problems, further, a plurality of flow guide holes 800 are arranged at the bottom of the platform 110 at the pre-drying station 420, the main drying station 430 and the secondary drying station 450, respectively; the plurality of flow guide holes 800 extend along the width direction of the platform 110 and are arranged at intervals along the length direction of the platform 110. Further, the spacing between the adjacent two flow guide holes 800 at the middle position is large, and the spacing between the adjacent two flow guide holes 800 at the both ends position is small, which can further solve the problem of uneven air supply. The top of the drying box body 410 is provided with an air inlet 411, and the bottom of the part of the drying box body 410 below the platform 110 is provided with an air outlet 412, and the air inlet 411, the flow guide hole 800 and the air outlet 412 are sequentially communicated. The present application also comprises a wind path system, and the high-pressure fan of the wind path system draws air from the air inlet 411, then heats it through a heating component, and then disperses it into the air inlet 411 and flows to the air outlet 412 through the flow guide hole 800, and then the gas enters the air inlet 411 again to form a cycle. During the conveying process, hot air is continuously supplied from the air inlet 411 from top to bottom, and the running time can be set as needed. Since the space in the drying box body 410 is closed, the heat loss is low, the continuous high temperature can be guaranteed, the airflow flows uniformly from top to bottom, the energy can be saved, and the drying efficiency can be improved. Specifically, the present embodiment can improve the drying speed.

[0062] Further, the present application also comprises a control assembly; the door body 440 is an automatic door; and the control assembly is electrically connected with the door body 440, the heating component and the conveying assembly 500. Specifically, the present embodiment can realize full automation and improve efficiency.

[0063] The working process of the present application is as follows:

[0064] 1. The automatic equipment (for example, a robot) is connected to the second feeding station 220, and the automatic equipment places the flower basket 600 containing the workpiece to be dried on the feeding station.

[0065] 2. The transport assembly 500 transports the flower basket 600 on the second material placing station 220 to the weighing station to weigh.

[0066] 3. After the weighing station process is completed, the transport assembly 500 transports the flower basket 600 to the first material placing station 210, until the flower baskets 600 on the first material placing station 210 are full, the control system controls the door body 440 to move upward, and controls the transport assembly 500 to transport all the flower baskets 600 on the first material placing station 210 to the pre-drying station 420.

[0067] 4. In the drying box body 410, the control system controls the transport assembly 500 to switch the flower baskets 600 among the pre-drying station 420, the main drying station 430 and the secondary drying station 450 according to the drying time, until the control system controls the door body 440 to move upward and the transport assembly 500 to work after the secondary drying station 450 is completed, so as to transport the dried flower baskets 600 and the workpieces to the material discharging station 310.

[0068] 5. After the transmission is completed, the workpieces on the material discharging station 310 are automatically taken out to the next station.

[0069] The present application ensures the temperature in the drying box body 410, and solves the problem of too long drying time. The present application integrates the drying, weighing and material discharging automation into one, greatly reducing the occupied area.

[0070] Obviously, the above embodiments are only examples for clearly illustrating, and are not limited to the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments are not required to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A chain type drying apparatus for drying photovoltaic silicon wafers, characterized by: The utility model relates to a drying line for drying workpieces, comprising: a workbench assembly including a platform; a feeding assembly arranged at the front end of the platform, the feeding assembly including a feeding station; a discharging assembly arranged at the end of the platform, the discharging assembly including a discharging station; a drying assembly arranged at the middle of the platform, the drying assembly including a drying box, a pre-drying station, a main drying station, and a heating component, the drying box having two openable and closable door bodies at its front and back ends, the pre-drying station and the main drying station being arranged in the drying box, the pre-drying station being arranged close to the door body at the front end of the drying box, and the heating component being used for drying workpieces placed in the drying box; a conveying assembly arranged in the platform, used for switching workpieces between the feeding station, the pre-drying station, the main drying station, and the discharging station.

2. The chain type drying apparatus for drying photovoltaic silicon wafers according to claim 1, wherein: The feeding station includes a first feeding station, which is used for placing a plurality of workpieces to be dried; the pre-drying station and the main drying station are also used for placing a plurality of workpieces to be dried; the number of workpieces to be dried in the first feeding station, the pre-drying station, and the main drying station is the same.

3. The chain type drying apparatus for drying photovoltaic silicon wafers according to claim 1, wherein: The utility model further includes a weighing assembly arranged at the front end of the platform, the weighing assembly being connected with the platform.

4. The chain type drying apparatus for drying photovoltaic silicon wafers according to claim 3, wherein: The feeding station further includes a second feeding station arranged at the top of the platform, the second feeding station being arranged at the front side of the weighing assembly, and the second feeding station being used for placing one workpiece to be dried.

5. The chain type drying apparatus for drying photovoltaic silicon wafers according to claim 1, wherein: The drying assembly further includes a secondary drying station arranged in the drying box, the secondary drying station being arranged between the main drying station and the discharging station.

6. The chain type drying apparatus for drying photovoltaic silicon wafers according to claim 1, wherein: The feeding assembly, the drying assembly, and the conveying assembly form a drying line; there are a plurality of drying lines, and the plurality of drying lines are arranged side by side.

7. The chain type drying apparatus for drying photovoltaic silicon wafers according to claim 1, wherein: The conveying assembly includes a moving component arranged below the platform and a jacking component, the jacking component being connected to the top of the moving component, the moving component driving the jacking component to move along the extension direction of the platform, the jacking component including a jacking piece and a support piece connected to the jacking piece, the platform being provided with a through hole, and the jacking piece driving the support piece to rise and fall in the through hole.

8. The chain type drying apparatus for drying photovoltaic silicon wafers according to claim 7, wherein: There are two jacking components, and the two jacking components are arranged at the two ends of the workbench assembly.

9. The chain type drying apparatus for drying photovoltaic silicon wafers according to claim 1, wherein: The part of the platform located at the bottom of the pre-drying station and the main drying station is respectively provided with a plurality of flow guide holes, the plurality of flow guide holes extending along the width direction of the platform and being arranged at intervals along the length direction of the platform.

10. The chain type drying apparatus for drying photovoltaic silicon wafers according to claim 1, wherein: The utility model further includes a control assembly, the door body is an automatic door, and the control assembly is electrically connected with the door body, the heating component, and the conveying assembly.

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