Silicon wafer feeding and turning-over mechanism

Abstract

The utility model discloses a silicon wafer feeding and turn-over mechanism, which comprises a displacement feeding assembly and a plurality of groups of silicon wafer feeding frames arranged side by side, the two sides of each silicon wafer feeding frame are each provided with a belt conveying line, the displacement feeding assembly is located above the silicon wafer feeding frames so that silicon wafers can be placed on the belt conveying lines, and the tail end of each silicon wafer feeding frame is correspondingly provided with an overturning feeding wheel. And a plurality of silicon wafer slots for silicon wafers on the belt conveying line to be inserted are formed in the overturning feeding wheel. According to the utility model, silicon wafers are automatically loaded, the silicon wafer loading efficiency is improved, and the quality of the silicon wafers is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon wafer production equipment, in particular to a silicon wafer loading and turning mechanism. Background Art

[0002] Photovoltaic is short for solar photovoltaic power generation system. It is a new type of power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy, and has two operation modes: independent operation and grid-connected operation. The photovoltaic power generation industrial chain from upstream to downstream mainly includes polysilicon, silicon wafers, solar cells and battery modules.

[0003] At present, most of the silicon wafer loading in the solar cell production line is manually completed by operators, which not only has low work efficiency and high labor intensity of operators, but also reduces the photoelectric conversion efficiency of silicon wafers and even damages the silicon wafers due to human contact.

[0004] Therefore, it is necessary to provide a silicon wafer loading and turning mechanism to solve the above problems. Summary of the Utility Model

[0005] In order to overcome the above disadvantages, the purpose of the utility model is to provide a silicon wafer loading and turning mechanism, which automatically loads silicon wafers, improves the silicon wafer loading efficiency and ensures the quality of silicon wafers at the same time.

[0006] In order to achieve the above purpose, the technical scheme adopted by the utility model is: a silicon wafer loading and turning mechanism, which includes a displacement loading component and multiple groups of silicon wafer loading racks arranged side by side; a belt conveyor is arranged on both sides of each group of silicon wafer loading racks, and the displacement loading component is located above the silicon wafer loading racks to place silicon wafers on the belt conveyor. A turning loading wheel is correspondingly arranged at the end of each silicon wafer loading rack, and a plurality of silicon wafer slots for inserting silicon wafers on the belt conveyor are formed on the turning loading wheel.

[0007] Furthermore, the axial direction of the turning loading wheel is perpendicular to the conveying direction of the belt conveyor. So that there is always a silicon wafer slot on the turning loading wheel facing the conveying direction of the belt conveyor, and then the silicon wafers conveyed by the belt conveyor can be automatically moved into the corresponding silicon wafer slots for the next transportation.

[0008] Further, the belt conveyor is arranged along the length direction of the silicon wafer loading rack. The silicon wafer loading rack includes two supporting side plates for supporting the belt conveyor and a supporting main board connecting the two supporting side plates. The supporting main board is arranged on one side of the silicon wafer loading rack away from the flipping loading wheel. An accommodating space for partially placing the flipping loading wheel is left between the two supporting side plates. The two supporting side plates support the corresponding belt conveyor. The upper part of the flipping loading wheel is located in the accommodating space, so that there is no interference during the process of the belt conveyor transporting the silicon wafer, and at the same time, it is ensured that the silicon wafer can be transported to one end thereof to abut against one end of the silicon wafer slot close to the center of the flipping loading wheel, ensuring the stability of the silicon wafer during the rotation of the flipping loading wheel.

[0009] Further, the silicon wafer slot is opened along the radial direction of the flipping loading wheel, and one end thereof extends out of the outer circle of the flipping loading wheel. The multiple silicon wafer slots are not communicated with each other.

[0010] Further, the displacement loading assembly includes a displacement bracket, a horizontal module horizontally arranged thereon, and a lifting assembly. The lifting assembly is slidably connected to the horizontal module through a moving plate. The lifting assembly includes at least one set of lifting cylinders vertically arranged on the moving plate. The top of the piston rod of the lifting cylinder is connected to a vacuum suction cup through a suction cup connecting plate. The vacuum suction cup can adsorb the silicon wafer. The horizontal module can drive the vacuum suction cup adsorbed with the silicon wafer to move left and right to move the silicon wafer on the vacuum suction cup to the corresponding belt conveyor. The piston rod of the lifting cylinder extends out and then drives the silicon wafer to move downward until it is stably placed on the belt conveyor. After the silicon wafer is placed, the piston rod of the lifting cylinder retracts, and the horizontal module resets. Repeat the above operations to realize the automatic loading of multiple groups of silicon wafers.

[0011] Further, a flipping driving assembly is further included. The flipping driving assembly includes a flipping motor and a flipping bracket supporting it. A flipping shaft is horizontally arranged at the top of the rotating shaft of the flipping motor. The flipping shaft sequentially passes through the center of the flipping loading wheel and is connected to it by bearings. When the flipping motor drives the flipping shaft to rotate, the flipping loading wheel penetrated and connected by bearings by the flipping shaft also rotates accordingly, so that the silicon wafers on the belt conveyor can be sequentially inserted into multiple silicon wafer slots, realizing the automatic loading of silicon wafers.

[0012] Further, the belt conveyor line includes a conveyor belt, a driving wheel, and a plurality of tensioning wheels arranged along the length direction of the silicon wafer loading rack. The driving wheel is connected to the silicon wafer loading rack through an external driving structure. The belt conveyor line can realize the automatic transportation of silicon wafers. The external driving structure includes a driving motor and a driving main gear located at the end of its rotating shaft. The driving main gear is connected to a driving driven gear through a transmission belt. Two symmetrically arranged driving wheels are connected through a connecting shaft. The connecting shaft penetrates the driving driven gear, so that when the driving motor drives the driving main gear to rotate, the driving driven gear drives the connecting shaft to rotate under the drive of the transmission belt, thereby providing power for the transmission of the belt conveyor line and enabling it to transport the silicon wafers from the belt conveyor line to the silicon wafer slots on the flipping loading wheel.

[0013] Further, a plurality of weight reduction holes are formed in the flipping loading wheel. It can effectively reduce the weight of the flipping loading wheel and make its rotation smoother.

[0014] Advantages of the present utility model:

[0015] In the present utility model, the silicon wafer loading rack, the belt conveyor line, the flipping loading wheel, the silicon wafer slots, and the displacement loading assembly cooperate with each other. The belt conveyor line can automatically load silicon wafers, transfer the silicon wafers to the flipping loading wheel, without manual operation, which can effectively reduce the labor intensity of the staff, and can ensure the quality of the silicon wafers while effectively improving the silicon wafer loading efficiency. Description of the drawings

[0016] Figure 1 Isometric view of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 Top view of the overall structure of an embodiment of the present utility model;

[0018] Figure 3 Schematic diagram of the structure of the flipping loading wheel of an embodiment of the present utility model;

[0019] Figure 4 Schematic diagram of a partial structure of an embodiment of the present utility model;

[0020] In the figure: 1, silicon wafer loading rack; 2, belt conveyor line; 21, conveyor belt; 22, driving wheel; 23, tensioning wheel; 3, flipping loading wheel; 4, displacement loading assembly; 41, displacement bracket; 42, horizontal module; 43, moving plate; 44, vacuum suction cup; 45, lifting assembly; 451, lifting cylinder; 452, suction cup connecting plate; 5, flipping drive assembly; 51, flipping motor; 52, flipping shaft; 53, flipping bracket; 6, silicon wafer slot; 7, weight reduction hole. Detailed implementation manners

[0021] The following elaborates on the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.

[0022] See the attached Figures 1 to 4 As shown, a wafer loading and turning mechanism in this embodiment includes a displacement loading component 4 and multiple groups of wafer loading racks 1 arranged side by side; on both sides of each group of wafer loading racks 1, a belt conveyor 2 is provided, and the belt conveyor 2 can automatically transport the wafers placed thereon, enabling the wafers to automatically move towards the direction of the turning and loading wheel 3, eliminating the need for manual handling, realizing the automation of wafer loading, and improving the loading efficiency.

[0023] The displacement loading component 4 is located above the wafer loading rack 1 to place the wafers on the belt conveyor 2. The displacement loading component 4 plays a role in transporting the wafers and can automatically transport the wafers to the corresponding belt conveyor 2, thereby avoiding the phenomenon of reduced photoelectric conversion efficiency of the wafers due to human hand contact.

[0024] At the end of each wafer loading rack 1, a turning and loading wheel 3 is correspondingly provided. Multiple wafer slots 6 for inserting the wafers on the belt conveyor 2 are provided on the turning and loading wheel 3. The belt conveyor 2 can sequentially transport the wafers into the wafer slots 6. When the wafers in one wafer slot 6 are placed, the turning and loading wheel 3 rotates, aligning the next wafer slot 6 with the wafers on the belt conveyor 2. When the first wafer rotates 180 degrees (i.e., is turned over) under the rotation of the turning and loading wheel 3, the wafer just contacts the belt conveyor 2 on another wafer loading rack 1 symmetrically arranged along the axial direction of the turning and loading wheel 3, and then the wafer can be moved and unloaded.

[0025] It should be noted that in some embodiments, the mechanism for moving and unloading the wafers at the unloading end of the turning and loading wheel 3 and transferring them to the next station is not limited to only the combined structure of the wafer loading rack 1 and the belt conveyor 2 on the loading side, and can also be other known mechanical structures that can drive the wafers to be automatically unloaded without affecting their photoelectric conversion efficiency.

[0026] The axial direction of the turning and loading wheel 3 is perpendicular to the conveying direction of the belt conveyor 2. This enables there to always be a wafer slot 6 on the turning and loading wheel 3 facing the conveying direction of the belt conveyor 2, so that the wafers conveyed by the belt conveyor 2 can automatically move into the corresponding wafer slots 6 above for the next transfer.

[0027] The belt conveyor line 2 is arranged along the length direction of the silicon wafer loading rack 1. The silicon wafer loading rack 1 includes two supporting side plates for supporting the belt conveyor line 2 and a supporting main board connecting the two supporting side plates. The supporting main board is arranged on the side of the silicon wafer loading rack 1 away from the flipping loading wheel 3. There is an accommodating space between the two supporting side plates for part of the flipping loading wheel 3 to be placed. The two supporting side plates support the corresponding belt conveyor line 2. Part of the flipping loading wheel 3 is located in the accommodating space, so that there is no interference during the process of the belt conveyor line 2 transporting silicon wafers, and at the same time, it is ensured that the silicon wafers can be transported to one end thereof to abut against one end of the silicon wafer slot 6 close to the center of the flipping loading wheel 3, ensuring the stability of the silicon wafers during the rotation of the flipping loading wheel 3.

[0028] The silicon wafer slot 6 is opened along the radial direction of the flipping loading wheel 3, and one end thereof extends out of the outer circle of the flipping loading wheel 3. The multiple silicon wafer slots 6 are not communicated with each other. In some embodiments, eight silicon wafer slots 6 are arranged in a circumferential array along the center of the flipping loading wheel 3. Since the multiple silicon wafer slots 6 are not communicated with each other, it can be ensured that one end of each of the multiple silicon wafer slots 6 located inside the flipping loading wheel 3 does not exceed the center, thereby ensuring the stability of the flipping loading wheel 3 during the rotation and loading process.

[0029] The displacement loading assembly 4 includes a displacement bracket 41, a horizontal module 42 horizontally arranged thereon, and a lifting assembly 45. The lifting assembly 45 is slidably connected to the horizontal module 42 through a moving plate 43. The lifting assembly 45 includes at least one set of lifting cylinders 451 vertically arranged on the moving plate 43. The top of the piston rod of the lifting cylinder 451 is connected to a vacuum suction chuck 44 through a suction chuck connecting plate 452. The vacuum suction chuck 44 can adsorb silicon wafers. The horizontal module 42 can drive the vacuum suction chuck 44 adsorbed with silicon wafers to move left and right, so as to move the silicon wafers on the vacuum suction chuck 44 to the corresponding belt conveyor line 2. The piston rod of the lifting cylinder 451 extends out to drive the silicon wafers to move downward until they are stably placed on the belt conveyor line 2. After the silicon wafers are placed, the piston rod of the lifting cylinder 451 retracts, and the horizontal module 42 resets. Repeating the above operations can realize the automatic loading of multiple groups of silicon wafers.

[0030] It further includes a flipping drive assembly 5. The flipping drive assembly 5 includes a flipping motor 51 and a flipping bracket 53 supporting it. A flipping shaft 52 is horizontally arranged at the top of the rotating shaft of the flipping motor 51. The flipping shaft 52 passes through the center of the flipping loading wheel 3 in sequence and is connected to it by bearings. When the flipping motor 51 drives the flipping shaft 52 to rotate, the flipping loading wheel 3 penetrated and connected by bearings by the flipping shaft 52 also rotates accordingly, so that the silicon wafers on the belt conveyor line 2 can be inserted into the multiple silicon wafer slots 6 in sequence, realizing the automatic loading of silicon wafers.

[0031] It should be noted that, in some embodiments, the rotation of the turning shaft 52 is not limited to being driven only by the turning motor 51, and other known mechanical mechanisms capable of driving its rotation, such as a dividing plate, may also be used.

[0032] The belt conveyor line 2 includes a conveyor belt 21, a driving wheel 22, and a plurality of tension wheels 23 arranged along the length direction of the silicon wafer loading rack 1. The driving wheel 22 is connected to the silicon wafer loading rack 1 through an external driving structure. The belt conveyor line 2 can realize the automatic transportation of silicon wafers. The external driving structure includes a driving motor and a driving main gear located at the end of its rotating shaft. The driving main gear is connected to a driving driven gear through a transmission belt. Two symmetrically arranged driving wheels 22 are connected by a connecting shaft. The connecting shaft penetrates through the driving driven gear, so that when the driving motor drives the driving main gear to rotate, the driving driven gear drives the connecting shaft to rotate under the drive of the transmission belt, thereby providing power for the transmission of the belt conveyor line 2 and enabling it to transport silicon wafers from the belt conveyor line 2 to the silicon wafer slot 6 on the turning loading wheel 3.

[0033] A plurality of weight reduction holes 7 are formed in the turning loading wheel 3. It can effectively reduce the weight of the turning loading wheel 3 and make its rotation smoother.

[0034] The above embodiments are only for explaining the technical concept and features of the present invention, and their purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it, and it cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A silicon wafer loading and turning mechanism, characterized in that: It includes a displacement loading component and multiple groups of silicon wafer loading racks arranged side by side; a belt conveyor line is arranged on both sides of each group of silicon wafer loading racks, the displacement loading component is located above the silicon wafer loading rack to place the silicon wafers on the belt conveyor line, and a flip loading wheel is correspondingly arranged at the rear end of each silicon wafer loading rack, and the flip loading wheel is provided with multiple silicon wafer slots for inserting silicon wafers on the belt conveyor line.

2. The silicon wafer loading and turning mechanism according to claim 1, characterized in that: The axis direction of the flip loading wheel is perpendicular to the conveying direction of the belt conveyor line.

3. The silicon wafer loading and turning mechanism according to claim 1, characterized in that: The belt conveyor line is arranged along the length direction of the silicon wafer loading rack. The silicon wafer loading rack includes two supporting side plates for supporting the belt conveyor line and a supporting main board connecting the two supporting side plates. The supporting main board is arranged on the side of the silicon wafer loading rack away from the flip loading wheel, and an accommodating space for partially placing the flip loading wheel is reserved between the two supporting side plates.

4. The silicon wafer loading and turning mechanism according to claim 1, characterized in that: The silicon wafer slots are opened along the radial direction of the flip loading wheel, and one end thereof extends out of the outer circle of the flip loading wheel, and the plurality of silicon wafer slots are not connected to each other.

5. The silicon wafer loading and turning mechanism according to claim 1, characterized in that: The displacement loading assembly includes a displacement bracket, a horizontal module horizontally arranged thereon, and a lifting assembly. The lifting assembly is slidably connected to the horizontal module via a movable plate. The lifting assembly includes at least one group of lifting cylinders vertically arranged on the movable plate. The top of the lifting cylinder piston rod is connected to the vacuum suction plate via a suction plate connecting plate.

6. The silicon wafer loading and turning mechanism according to claim 1, characterized in that: It also includes a flip drive assembly, which includes a flip motor and a flip bracket supporting it. A flip shaft is horizontally arranged on the top of the rotating shaft of the flip motor. The flip shaft passes through the center of the flip loading wheel in sequence and is connected to the bearing therewith.

7. The silicon wafer loading and turning mechanism according to claim 1, characterized in that: The belt conveyor line comprises a conveyor belt, a transmission wheel and a plurality of tension wheels arranged along the length direction of the silicon wafer loading rack, and the transmission wheel is connected to the silicon wafer loading rack through an external driving structure.

8. The silicon wafer loading and turning mechanism according to claim 1, characterized in that: A plurality of weight-reducing holes are provided on the flip loading wheel.

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