Sheet body neatening device

Abstract

The utility model belongs to the field of photovoltaic cell production equipment, and relates to a sheet body normalizing device, which comprises a reference mechanism, a first conveying mechanism and a second conveying mechanism, the reference mechanism is arranged on one side of the first conveying mechanism and is provided with a reference surface facing the first conveying mechanism, and the reference surface extends along a first direction; the first conveying mechanism is gradually close to the reference surface from the first end to the second end, the first end of the first conveying mechanism is configured to receive the sheet body, and the first conveying mechanism is configured to convey the sheet body to move towards the reference surface, so that one side edge of the sheet body is tightly attached to the reference surface to realize neatening; the second end of the first conveying mechanism is configured to output the tidied sheet bodies to the second conveying mechanism, and the second conveying mechanism is configured to convey the sheet bodies in the first direction. According to the sheet body normalizing device, the sheet body is gradually conveyed towards the reference surface of the reference mechanism through the first conveying mechanism, one side edge of the sheet body is gradually made to be tightly attached to the reference surface so as to normalize the sheet body, the head of the sheet body is made to be conveyed in the first direction, and the normalized sheet body is output through the second conveying mechanism. The reference surface of the reference mechanism serves as a unified reference, it can be guaranteed that all the normalized sheet bodies face the same direction, and the normalization effect is good.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic cell production equipment and relates to a cell straightening device. Background Technology

[0002] During the flow of solar cells and other wafers on the conveyor line, it is often necessary to straighten their positions. The traditional straightening method is to set straightening components on both sides of the wafer conveyor line. The straightening components may include straightening belts and drive mechanisms. The straightening belts are fixedly installed on the drive end of the drive mechanism. The drive mechanisms in the straightening components on both sides drive the corresponding straightening belts to move closer to the wafers, thereby pushing the two sides of the wafers and straightening them.

[0003] In traditional straightening components, when the straightening belts on both sides approach the clamping sheet, the minimum distance between the two straightening belts is greater than the width of the sheet to avoid clamping the sheet. The problem caused by this is that the straightening effect of the sheet is not consistent, and it cannot be guaranteed that all sheets will face the same direction after straightening. Utility Model Content

[0004] The purpose of this invention is to provide a sheet straightening device that can ensure that all straightened sheets have the same orientation and achieve a better straightening effect.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A sheet straightening device includes a reference mechanism, a first conveying mechanism, and a second conveying mechanism. The reference mechanism is disposed on one side of the first conveying mechanism and has a reference surface facing the first conveying mechanism. The reference surface extends along a first direction. The first conveying mechanism gradually approaches the reference surface from a first end to a second end. The first end of the first conveying mechanism is configured to receive a sheet. The first conveying mechanism is configured to convey the sheet toward the reference surface so that one side of the sheet is tightly attached to the reference surface to achieve straightening. The second end of the first conveying mechanism is configured to output the straightened sheet to the second conveying mechanism. The second conveying mechanism is configured to convey the sheet along the first direction.

[0007] The sheet straightening device provided in this application gradually conveys the sheet towards the reference surface of the reference mechanism through a first conveying mechanism, gradually causing one side of the sheet to adhere to the reference surface, thereby straightening the sheet and ensuring that the head of the sheet is conveyed in a first direction. The straightened sheet is then output through a second conveying mechanism. This application uses the reference surface of the reference mechanism as a unified reference, which ensures that all straightened sheets have the same orientation, resulting in a better straightening effect.

[0008] Optionally, the sheet straightening device also includes a third conveying mechanism, which is configured to convey the sheet along the first direction. The output end of the third conveying mechanism is connected to the first end of the first conveying mechanism, and the third conveying mechanism outputs the sheet it carries to the first end of the first conveying mechanism.

[0009] The sheet conveyed by the third conveying mechanism may be skewed. The sheet on the third conveying mechanism can be conveyed to the first conveying mechanism. The sheet is gradually pushed towards the reference surface of the reference mechanism by the first conveying mechanism to straighten the sheet. In this application, the conveying direction of the third conveying mechanism is also along the first direction, making the structure of the entire device more compact.

[0010] Optionally, the reference surface of the reference mechanism extends along the first direction to one side of the input end of the second conveying mechanism, and when the sheet moves from the second end of the first conveying mechanism to the input end of the second conveying mechanism, one side of the sheet is in close contact with the reference surface.

[0011] During the conveying process on the first conveying mechanism, the sheet is gradually pushed towards the reference surface, causing one side of the sheet to gradually come into contact with the reference surface. Since the reference surface extends to the input end of the second conveying mechanism, when the sheet moves from the second end of the first conveying mechanism to the input end of the second conveying mechanism, one side of the sheet still comes into contact with the reference surface. Afterward, the sheet falls off the reference surface and continues to be conveyed on the second conveying mechanism along the first direction, ensuring that the heads of the sheets on the second conveying mechanism are all facing the first direction. This prevents the sheet from tilting at the transition between the first and second conveying mechanisms due to uneven transition, thus ensuring the neatness of the sheet.

[0012] Optionally, the reference mechanism includes a drive member, a drive wheel assembly, and a belt. The belt is fitted onto the drive wheel assembly. The drive member is configured to drive the drive wheel assembly to rotate, thereby causing the belt to rotate. The belt extends in a first direction, and the outer side of the belt body on the side closest to the first conveying mechanism forms a reference surface.

[0013] Using the outer side of the belt as a reference surface, when the sheet comes into contact with the reference surface, the belt will also give the sheet a driving force, which will prevent the sheet from slowing down due to contact with the reference surface, thus ensuring conveying efficiency and improving the smoothing efficiency.

[0014] Optionally, the reference mechanism may also include a support rod that extends along a first direction and rests against the inner side of the belt body on the side closest to the first conveying mechanism.

[0015] During the rotation of the belt, the belt body always rests against the support rod. The support rod can support one side of the belt body, preventing the belt from being deformed due to the impact of the sheet when it comes into contact with the belt. This ensures that the reference surface of the belt does not deform and guarantees a regularity effect.

[0016] Optionally, the drive wheel assembly includes a drive wheel and a driven wheel spaced apart along a first direction. The drive component is a motor, the output shaft of which is connected to the drive wheel. A belt is fitted onto the drive wheel and the driven wheel, and the distance between the center line of the drive wheel and the center line of the driven wheel is not less than 350 mm.

[0017] As the sheet moves along the first conveying mechanism, it gradually comes into contact with the reference surface to achieve turning and straightening. Therefore, the length of the reference surface in the first direction cannot be too small to ensure that the sheet can gradually rotate and come into contact with the reference surface. The distance between the center line of the driving wheel and the center line of the driven wheel is equivalent to the length of the reference surface in the first direction. This application limits the length of the reference surface by limiting the distance between the center line of the driving wheel and the center line of the driven wheel to no less than 350mm, thereby ensuring the straightening effect.

[0018] Optionally, the distance between the centerline of the driving wheel and the centerline of the driven wheel can range from 350mm to 700mm.

[0019] Within a distance range of 350mm-700mm, it can ensure a good regularity of the reference surface while avoiding an excessively long reference surface that would increase the cost of the reference mechanism.

[0020] Optionally, the reference mechanism includes a strip that extends along a first direction, with the strip's surface facing the first conveying mechanism, and the outer surface of the strip near the first conveying mechanism forming a reference surface.

[0021] As another feasible solution for the reference mechanism, the reference mechanism may include a strip, with the outer surface of the strip serving as the reference surface. The strip has a simple structure and low cost.

[0022] Optionally, the first conveying mechanism is configured to convey the sheet along a second direction, the angle between the second direction and the first direction being in the range of 3°-8°.

[0023] In this application, the reference plane extends along the first direction, and the first conveying mechanism extends along the second direction. By limiting the angle range between the second direction and the first direction, that is, limiting the tilt angle range of the first conveying mechanism relative to the reference plane, it is ensured that the sheet can slowly approach the reference plane under the drive of the first conveying mechanism, and achieve regularization when the sheet reaches the second end of the first conveying mechanism.

[0024] Optionally, the belt rotation speed is the same as the speed of the first conveyor mechanism and the second conveyor mechanism.

[0025] The belt drives the sheet on the first and second conveyor mechanisms at the same speed, ensuring that the sheet moves smoothly.

[0026] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0028] Figure 1 This is a three-dimensional structural diagram of the sheet-forming device of this utility model;

[0029] Figure 2 This is a top view of the sheet-aligning device of this utility model (the sheet is in an skewed state).

[0030] Figure 3 This is a top view of the sheet-shaping device of this utility model (after the sheet has been shaped).

[0031] Figure 4 This is a three-dimensional structural diagram of the reference mechanism.

[0032] In the figure: 10-Reference mechanism; 11-Reference surface; 12-Drive component; 13-Belt; 14-Support rod; 15-Driving wheel; 16-Driven wheel; 17-Mounting frame; 20-First conveying mechanism; 30-Second conveying mechanism; 40-Sheet body; 50-Third conveying mechanism. Detailed Implementation

[0033] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this invention as detailed in the appended claims.

[0034] Combination Figures 1-4 As shown, this application proposes a sheet straightening device, including a reference mechanism 10, a first conveying mechanism 20, and a second conveying mechanism 30. The reference mechanism 10 is disposed on one side of the first conveying mechanism 20 and has a reference surface 11 facing the first conveying mechanism 20. The reference surface 11 extends along a first direction X. The first conveying mechanism 20 gradually approaches the reference surface 11 from a first end to a second end. The first end of the first conveying mechanism 20 is configured to receive a sheet 40 and to convey the sheet 40 toward the reference surface 11 so that one side of the sheet 40 is tightly attached to the reference surface 11 to achieve straightening. The second end of the first conveying mechanism 20 is configured to output the straightened sheet 40 to the second conveying mechanism 30. The second conveying mechanism 30 is configured to convey the sheet 40 along the first direction X.

[0035] The sheet straightening device provided in this application gradually conveys the sheet 40 towards the reference surface 11 of the reference mechanism 10 through the first conveying mechanism 20, so that one side of the sheet 40 gradually adheres to the reference surface 11, thereby straightening the sheet 40. The head of the sheet 40 is then conveyed towards the first direction X. The straightened sheet 40 is then output through the second conveying mechanism 30. This application uses the reference surface 11 of the reference mechanism 10 as a unified reference, ensuring that all straightened sheets 40 have the same orientation, resulting in a better straightening effect.

[0036] by Figure 3 For example, the head of the sheet 10 is the left end of the sheet 10. At this time, the sheet 10 is in a regular state, and the head of the sheet 10 faces the first direction X.

[0037] The wafer straightening device of this application can be applied to photovoltaic cell production, and the wafer 10 can be a silicon wafer or a cell.

[0038] like Figure 1-3 As shown, the sheet straightening device also includes a third conveying mechanism 50, which is configured to convey the sheet 40 along the first direction X. The output end of the third conveying mechanism 50 is connected to the first end of the first conveying mechanism 20, and the third conveying mechanism 50 outputs the sheet 40 it carries to the first end of the first conveying mechanism 20.

[0039] like Figure 2 As shown, when the sheet 40 conveyed by the third conveying mechanism 50 is skewed, the sheet 40 on the third conveying mechanism 50 can be conveyed to the first conveying mechanism 20. The sheet 40 is gradually pushed towards the reference surface 11 of the reference mechanism 10 via the first conveying mechanism 20, so that one side of the sheet 40 gradually adheres to the reference surface 11, thereby standardizing the sheet 40. Figure 3 This refers to the state after the sheet body is 40mm regularized.

[0040] When the sheet 40 delivered by the third conveying mechanism 50 is not tilted and its head is facing the first direction X, the sheet 40 on the third conveying mechanism 50 is conveyed to the first conveying mechanism 20. The sheet 40 will also be gradually pushed towards the reference surface 11 by the first conveying mechanism 20, so that one side of the sheet 40 is attached to the reference surface 11, and the sheet 40 moves while maintaining its head facing the first direction X.

[0041] In this application, the conveying direction of the third conveying mechanism 50 is also along the first direction X, making the structure of the entire sheet-forming device more compact.

[0042] Optional, such as Figure 2As shown, the reference surface 11 of the reference mechanism 10 extends along the first direction X to one side of the input end of the second conveying mechanism 30. When the sheet 40 moves from the second end of the first conveying mechanism 20 to the input end of the second conveying mechanism 30, one side of the sheet 40 is in close contact with the reference surface 11.

[0043] During the conveying process on the first conveying mechanism 20, the sheet 40 is gradually pushed towards the reference surface 11, so that one side of the sheet 40 gradually comes into contact with the reference surface 11. Since the reference surface 11 extends to the input end of the second conveying mechanism 30, when the sheet 40 moves from the second end of the first conveying mechanism 20 to the input end of the second conveying mechanism 30, one side of the sheet 40 still comes into contact with the reference surface 11. After that, the sheet 40 falls off the reference surface 11 and continues to be conveyed on the second conveying mechanism 30 along the first direction X, ensuring that the head of the sheet 40 on the second conveying mechanism 30 is facing the first direction X, avoiding the sheet 40 from tilting at the transition between the first conveying mechanism 20 and the second conveying mechanism 30 due to an unstable transition, and ensuring the neatness of the sheet 40.

[0044] Optional, such as Figure 4 As shown, the reference mechanism 10 includes a drive member 12, a drive wheel assembly, and a belt 13. The belt 13 is sleeved on the drive wheel assembly. The drive member 12 is configured to drive the drive wheel assembly to rotate, thereby causing the belt 13 to rotate. The belt 13 extends along the first direction X. The outer side of the belt body of the belt 13 near the first conveying mechanism 20 forms the reference surface 11.

[0045] Using the outer side of the belt 13 as the reference surface 11, when the sheet 40 contacts the reference surface 11, the belt 13 will also give the sheet 40 a driving force to prevent the sheet 40 from slowing down due to contact with the reference surface 11, thus ensuring conveying efficiency and improving the smoothing efficiency.

[0046] Optional, such as Figure 4 As shown, the reference mechanism 10 also includes a support rod 14, which extends along the first direction X and abuts against the inner side of the belt body of the belt 13 on the side closest to the first conveying mechanism 20.

[0047] During the rotation of belt 13, the belt body of belt 13 is always in contact with support rod 14. Support rod 14 can support one side of belt body of belt 13, preventing belt 13 from being deformed due to impact of plate 40 when it contacts belt 13. This ensures that the reference surface 11 of belt 13 does not deform or wobble, thus ensuring a regular effect.

[0048] Optionally, the drive wheel assembly includes a drive wheel 15 and a driven wheel 16 arranged along the first direction X-axis. The drive component 12 is a motor, the output shaft of which is connected to the drive wheel 15. A belt 13 is fitted on the drive wheel 15 and the driven wheel 16. The distance between the center line of the drive wheel 15 and the center line of the driven wheel 16 is not less than 350mm.

[0049] In actual use, the reference mechanism 10 also includes a mounting frame 17. The motor and support rod 14 are fixed on the mounting frame 17. The drive wheel 15 and driven wheel 16 are rotatably mounted on the mounting frame 17. The mounting frame 17 is located on one side of the first conveying mechanism 20. The conveying surfaces of the first conveying mechanism 20, the second conveying mechanism 30, and the third conveying mechanism 50 are all arranged horizontally. The center lines of the drive wheel 15 and the driven wheel 16 are arranged vertically, so that the reference surface 11 of the belt 13 is arranged vertically, so as to use the reference surface 11 to straighten the sheet 40 on the first conveying mechanism 20. In addition, by reasonably controlling the distance from the reference mechanism 10 to the first conveying mechanism 20 and the second conveying mechanism 30, the center line of the straightened sheet 40 coincides with the center line of the conveying surface of the second conveying mechanism 30 (the center line of the sheet 40 and the center line of the conveying surface of the second conveying mechanism 30 are both along the first direction X), so as to ensure that the second conveying mechanism 30 supports and conveys the straightened sheet 40 from the center of the sheet 40, so as to prevent the sheet 40 from tilting again. The first conveying mechanism 20, the second conveying mechanism 30, and the third conveying mechanism 50 can be belt conveyors.

[0050] As the skewed sheet 40 moves on the first conveying mechanism 20, it gradually comes into contact with the reference surface 11, enabling the sheet 40 to turn and become regular. Therefore, the length of the reference surface 11 in the first direction X cannot be too small to ensure that the sheet 40 can gradually rotate and come into contact with the reference surface 11. The distance between the center line of the driving wheel 15 and the center line of the driven wheel 16 is equivalent to the length of the reference surface 11 in the first direction X. This application limits the length of the reference surface 11 by limiting the distance between the center line of the driving wheel 15 and the center line of the driven wheel 16 to no less than 350mm, thereby ensuring the regularization effect.

[0051] Optionally, the distance between the center line of the driving wheel 15 and the center line of the driven wheel 16 is in the range of 350mm-700mm. Specifically, the distance between the center line of the driving wheel 15 and the center line of the driven wheel 16 can be selected from the above range of 350mm, 450mm, 550mm, 650mm, 700mm, or any other value within the above range.

[0052] Within a distance range of 350mm-700mm, the reference surface 11 can be well-regulated while avoiding excessive length of the reference surface 11, which would increase the cost of the reference mechanism 10.

[0053] Optionally, the reference mechanism 10 includes a strip that extends along a first direction X, with the strip surface facing the first conveying mechanism 20, and the outer side of the strip near the first conveying mechanism 20 forming a reference surface 11.

[0054] As another feasible solution for the reference mechanism 10, the reference mechanism 10 may include a strip, with the outer side of the strip serving as the reference surface 11. The strip has a simple structure and low cost.

[0055] Optionally, the first conveying mechanism 20 is configured to convey the sheet 40 along the second direction Y, and the angle between the second direction Y and the first direction X is in the range of 3°-8°.

[0056] like Figure 2-3 As shown, in this application, the reference surface 11 extends along the first direction X, and the first conveying mechanism 20 extends along the second direction Y. By limiting the angle range between the second direction Y and the first direction X, that is, limiting the tilt angle range of the first conveying mechanism 20 relative to the reference surface 11, it is ensured that the sheet 40 can slowly approach the reference surface 11 under the drive of the first conveying mechanism 20, and can be aligned with the reference surface 11 when the sheet 40 reaches the second end of the first conveying mechanism 20.

[0057] Specifically, the tilt angle of the first conveying mechanism 20 relative to the reference plane 11 is selected as 3°, 4°, 5°, 6°, 7°, 8°, or any other value within the above-mentioned angle range.

[0058] Optionally, the rotation speed of belt 13 is the same as the speed of the first conveying mechanism 20 and the second conveying mechanism 30. That is, belt 13 drives the sheet 40 on the first conveying mechanism 20 and the second conveying mechanism 30 at the same speed, ensuring that the sheet 40 moves smoothly.

[0059] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A sheet-forming device, characterized in that: The sheet straightening device includes a reference mechanism, a first conveying mechanism, and a second conveying mechanism. The reference mechanism is disposed on one side of the first conveying mechanism and has a reference surface facing the first conveying mechanism. The reference surface extends along a first direction. The first conveying mechanism gradually approaches the reference surface from a first end to a second end. The first end of the first conveying mechanism is configured to receive the sheet. The first conveying mechanism is configured to convey the sheet toward the reference surface so that one side of the sheet is tightly attached to the reference surface to achieve straightening. The second end of the first conveying mechanism is configured to output the straightened sheet to the second conveying mechanism. The second conveying mechanism is configured to convey the sheet along the first direction.

2. The sheet straightening device as described in claim 1, characterized in that: The sheet straightening device further includes a third conveying mechanism, which is configured to convey the sheet along the first direction. The output end of the third conveying mechanism is connected to the first end of the first conveying mechanism, and the third conveying mechanism outputs the sheet it carries to the first end of the first conveying mechanism.

3. The sheet straightening device as described in claim 1, characterized in that: The reference surface of the reference mechanism extends along the first direction to one side of the input end of the second conveying mechanism. When the sheet moves from the second end of the first conveying mechanism to the input end of the second conveying mechanism, one side of the sheet is in close contact with the reference surface.

4. The sheet straightening device as described in claim 1, characterized in that: The reference mechanism includes a driving component, a drive wheel assembly, and a belt. The belt is sleeved on the drive wheel assembly. The driving component is configured to drive the drive wheel assembly to rotate, thereby causing the belt to rotate. The belt extends along the first direction, and the outer side of the belt body near the first conveying mechanism constitutes the reference surface.

5. The sheet straightening device as described in claim 4, characterized in that: The reference mechanism further includes a support rod that extends along the first direction and abuts against the inner side of the belt body on the side closest to the first conveying mechanism.

6. The sheet straightening device as described in claim 4, characterized in that: The drive wheel assembly includes a drive wheel and a driven wheel spaced apart along the first direction. The drive component is a motor. The output shaft of the motor is connected to the drive wheel. The belt is sleeved on the drive wheel and the driven wheel. The distance between the center line of the drive wheel and the center line of the driven wheel is not less than 350mm.

7. The sheet straightening device as described in claim 6, characterized in that: The distance between the centerline of the driving wheel and the centerline of the driven wheel is in the range of 350mm-700mm.

8. The sheet straightening device as described in claim 1, characterized in that: The reference mechanism includes a strip that extends along the first direction, with the strip's surface facing the first conveying mechanism, and the outer surface of the strip near the first conveying mechanism forming the reference surface.

9. The sheet straightening device as described in claim 1, characterized in that: The first conveying mechanism is configured to convey the sheet along a second direction, the angle between the second direction and the first direction being 3°-8°.

10. The sheet straightening device as described in claim 4, characterized in that: The belt rotates at the same speed as the first conveyor mechanism and the second conveyor mechanism.

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