Conveying and normalizing device

Abstract

The utility model discloses a conveying and normalizing device which comprises a conveying belt used for conveying workpieces, and alignment stations are arranged on the conveying belt; the driving wheel and the driven wheel are arranged on the two sides of the alignment station of the conveying belt respectively; the two ends of the synchronous belt are arranged on the driving wheel and the driven wheel in a sleeving mode respectively, and the synchronous belt comprises a first side edge and a second side edge which are oppositely arranged; the pair of alignment mechanisms are mounted on the first side edge and the second side edge respectively, and the pair of alignment mechanisms are used for adjusting the positions of workpieces located on the conveying belt in a matched mode; and the driving unit is used for driving the driving wheel to rotate so as to drive the pair of alignment mechanisms to move towards each other or move away from each other. The pair of alignment mechanisms is driven by the single driving unit, the synchronism of movement on the two sides is guaranteed, and meanwhile the overall structure is simple and good in stability.

Description

Technical Field

[0001] This utility model belongs to the field of laser processing technology, specifically relating to a conveying and shaping device. Background Technology

[0002] Laser edge cleaning of silicon wafers is a method that uses laser technology to clean the edges of silicon wafers, and it is widely used in semiconductor manufacturing, solar cell manufacturing and other fields. In the laser edge cleaning production line for silicon wafers, the positioning accuracy of the silicon wafers has a significant impact on the laser processing accuracy. Therefore, silicon wafers must undergo an alignment and alignment process before entering the laser processing station.

[0003] Existing alignment processes typically employ symmetrically arranged alignment mechanisms on both sides of a conveyor belt to adjust the position of the silicon wafer. These alignment mechanisms generally utilize telescopic structures such as robotic arms or cylinders, with the wafer positioned at a predetermined location on the conveyor belt through the synchronous movement of the two alignment mechanisms. This method is structurally complex and inefficient. Furthermore, the independent operation of the two alignment devices may lead to time differences, resulting in poor final alignment and failing to meet the precision requirements of silicon wafer laser processing. Utility Model Content

[0004] The purpose of this application is to provide a conveying and alignment device to solve the technical problems of existing alignment and alignment devices, such as complex structure, low alignment efficiency, independent operation of the two side alignment mechanisms, which may lead to motion time difference, resulting in poor final alignment effect and difficulty in meeting the precision requirements of silicon wafer laser processing.

[0005] To achieve the above objectives, this application provides a conveying and straightening device, comprising:

[0006] A conveyor belt for transporting workpieces, wherein alignment stations are arranged on the conveyor belt;

[0007] The driving wheel and the driven wheel are respectively located on both sides of the alignment station of the conveyor belt;

[0008] A timing belt, with its two ends respectively fitted onto the driving pulley and the driven pulley, the timing belt including a first side and a second side disposed opposite to each other;

[0009] A pair of alignment mechanisms are respectively installed on the first side and the second side, and the pair of alignment mechanisms are used to cooperate in adjusting the position of the workpiece located on the conveyor belt;

[0010] A drive unit is used to drive the drive wheel to rotate, so as to drive the pair of alignment mechanisms to move towards each other or away from each other.

[0011] In one or more embodiments, the alignment station of the conveyor belt is equipped with a proximity sensor for detecting workpieces, and the proximity sensor is signal-connected to the drive unit.

[0012] In one or more embodiments, the conveyor belt includes a first conveyor belt and a second conveyor belt arranged independently of each other along the conveying direction, and the alignment station is arranged on the first conveyor belt.

[0013] In one or more embodiments, the alignment mechanism includes:

[0014] The first and second clamps cooperate to clamp and fix the synchronous belt.

[0015] A connecting seat is arranged in the gap between the first side and the second side, and the connecting seat is fixedly disposed with the first clamp and / or the second clamp;

[0016] A mounting plate is arranged on the side of the connecting seat facing the conveyor belt;

[0017] A roller is arranged on the mounting plate, and the outer circumferential surface of the roller is used to contact the edge of the workpiece.

[0018] In one or more embodiments, the mounting plate extends along the conveying direction of the conveyor belt, and the alignment mechanism includes a plurality of rollers arranged sequentially along the conveying direction of the conveyor belt.

[0019] In one or more embodiments, the clamping surfaces of the first clamping piece and / or the second clamping piece are provided with toothed surfaces, which are embedded in the surface of the timing belt to limit the alignment mechanism.

[0020] In one or more embodiments, a mounting base is further included, the mounting base being disposed on the side of the timing belt opposite to the conveyor belt, and the mounting base comprising:

[0021] The cantilever includes a base plate, a fixed plate arranged at one end of the base plate, and reinforcing plates arranged on both sides of the base plate. The fixed plate is provided with fixing holes. One side of the reinforcing plate is connected to the fixed plate, and the other side is connected to the base plate. The height of the reinforcing plate gradually decreases in the direction away from the fixed plate.

[0022] A support plate is disposed on the side of the base plate facing the timing belt, and the outer end of the support plate extends beyond the base plate:

[0023] The L-shaped plate is fixed to the inner end of the support plate;

[0024] The driven wheel is mounted on the L-shaped plate, and the driving wheel and the drive unit are mounted on the outer end of the support plate.

[0025] In one or more embodiments, a movable guide rail is further included, which is arranged on the side of the support plate facing the timing belt and extends along the movement direction of the alignment mechanism, and the connecting seat is slidably mounted on the movable guide rail.

[0026] In one or more embodiments, photoelectric sensors are further arranged on one or both sides of the support plate, and the alignment mechanism includes a light-shielding plate that matches the position of the photoelectric sensors.

[0027] In one or more embodiments, the mounting base is provided with a plurality of mounting holes evenly spaced along the extension direction of the synchronous belt, and the photoelectric sensor is fixed through the mounting holes.

[0028] The advantages of this application, which differ from existing technologies, are:

[0029] In this application's conveying and straightening device, when a workpiece is transported by a conveyor belt to the area below the conveying and straightening device, the drive unit can drive a pair of alignment mechanisms to move towards each other. The rollers of the pair of alignment mechanisms contact the edge of the workpiece and adjust the workpiece position to the preset straightening position. Then, the drive unit drives the pair of alignment mechanisms to move away from each other to complete the alignment and straightening of the workpiece. The pair of alignment mechanisms are driven by a single drive unit, ensuring the synchronicity of the movement on both sides. At the same time, the overall structure is simple, the stability is good, and there is no need for telescopic devices such as cylinders for control. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of one embodiment of the conveying and straightening device of this application;

[0032] Figure 2 This is a schematic diagram of one embodiment of the conveyor straightening device of this application after the conveyor belt is removed;

[0033] Figure 3 This is a schematic diagram of another embodiment of the conveyor straightening device of this application after the conveyor belt has been removed;

[0034] Figure 4 This is a schematic diagram of one embodiment of the alignment mechanism of this application.

[0035] As shown in the figure:

[0036] Conveyor belt 10; First conveyor belt 101; Second conveyor belt 102; Alignment station 103; Proximity sensor 104;

[0037] Drive wheel 20;

[0038] Driven wheel 30;

[0039] Synchronous belt 40; First side 401; Second side 402;

[0040] Drive unit 50;

[0041] Alignment mechanism 60; first clamping plate 601; toothed surface 6011; second clamping plate 602; connecting seat 603; mounting plate 604; roller 605; light shield 606;

[0042] Mounting base 70; cantilever 701; base plate 7011; fixing plate 7012; fixing waist hole 70121; reinforcing plate 7013; support plate 702; mounting hole 7021; L-shaped plate 703; moving guide rail 704. Detailed Implementation

[0043] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0044] Existing alignment and straightening devices have complex structures and low alignment efficiency. The independent operation of the two alignment mechanisms on both sides can lead to time differences and poor alignment results. To address this issue, the applicant has developed a novel conveying and straightening device. This device has a simple structure, high alignment efficiency, and can ensure synchronous movement of the two alignment mechanisms, guaranteeing accurate alignment.

[0045] Specifically, please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of one embodiment of the conveying and straightening device of this application. Figure 2 This is a schematic diagram of one embodiment of the conveyor straightening device of this application after the conveyor belt is removed.

[0046] like Figure 1 and Figure 2 As shown, the conveying and straightening device includes a conveyor belt 10 for transporting workpieces, and an alignment station 103 is arranged on the conveyor belt 10.

[0047] Specifically, in one application scenario, the workpiece can be a silicon wafer to be cleaned; in other application scenarios, it can be other workpieces to be laser-processed, such as perovskite solar cells.

[0048] In this embodiment, to improve workpiece transport efficiency, the conveyor belt 10 consists of a first conveyor belt 101 and a second conveyor belt 102 arranged independently along the transport direction, with the alignment station 103 located on the first conveyor belt 101. Based on this design, when the workpiece is being aligned at the alignment station 103, the second conveyor belt 102 can still maintain its transport state and transport the aligned workpiece to the laser processing station.

[0049] The conveying and straightening device also includes a drive wheel 20 and a driven wheel 30 respectively disposed on both sides of the alignment station 103 of the conveyor belt 10, and a synchronous belt 40 respectively sleeved on the drive wheel 20 and the driven wheel 30 at both ends. The synchronous belt 40 includes a first side 401 and a second side 402 disposed opposite to each other.

[0050] The conveying and straightening device also includes a drive unit 50 for driving the drive wheel 20 to rotate. In this embodiment, the drive unit 50 is a drive motor. In other embodiments, any drive device that can drive the drive wheel 20 to rotate can achieve the effect of this embodiment.

[0051] Understandably, the synchronous belt 40 can make the driving pulley 20 and the driven pulley 30 rotate synchronously. When the driving pulley 20 is driven to rotate, the driven pulley 30 rotates at the same speed, and the first side 401 and the second side 402 of the synchronous belt 40 move in opposite directions.

[0052] The conveying and straightening device also includes a pair of alignment mechanisms 60, which are respectively installed on the first side 401 and the second side 402. Therefore, when the drive wheel 20 is driven to rotate by the drive unit 50, as the first side 401 and the second side 402 move in opposite directions, they can drive the pair of alignment mechanisms 60 to move towards each other or away from each other. When the pair of alignment mechanisms 60 move towards each other to above the conveyor belt 10, they can perform alignment and straightening operations on the workpiece located on the conveyor belt 10.

[0053] In order to achieve automated alignment and straightening operation, the alignment station 103 of the transmission belt in this embodiment is also equipped with a proximity sensor 104 for detecting the workpiece. The proximity sensor 104 is connected to the drive unit 50 by signal, so that after the workpiece arrives at the alignment station 103, a pair of alignment mechanisms 60 are automatically controlled to perform alignment and straightening operation.

[0054] Based on the above-mentioned conveying and straightening device, a pair of alignment mechanisms 60 are controlled by a single drive unit 50, which can ensure the synchronous movement of the two alignment mechanisms 60 and ensure the alignment effect; at the same time, the overall structure is simple and the alignment efficiency is higher.

[0055] The conveyor alignment device also includes a mounting base 70 arranged on the side of the synchronous belt 40 opposite to the conveyor belt 10. The mounting base 70 is used to mount a pair of alignment mechanisms 60. The structure of the mounting base 70 and the alignment mechanism 60 of this application is described in detail below. Please refer to [link to relevant documentation]. Figures 3 to 4 , Figure 3 This is a schematic diagram of another embodiment of the conveyor straightening device of this application after the conveyor belt has been removed. Figure 4 This is a schematic diagram of one embodiment of the alignment mechanism of this application.

[0056] like Figures 3 to 4 As shown, the alignment mechanism 60 includes a first clamping piece 601 and a second clamping piece 602, which cooperate to clamp and fix the first clamping piece 601 and the second clamping piece 602 on the timing belt 40.

[0057] Specifically, in this embodiment, the clamping surface of the first clamping piece 601 is provided with a toothed surface 6011, which is embedded in the surface of the synchronous belt 40 to limit the alignment mechanism 60.

[0058] Of course, in other embodiments, the first clip 601 and the second clip 602 can also be fixed to the timing belt 40 in other ways, such as by bolts passing through the fixing belt, etc., all of which can achieve the effect of this embodiment.

[0059] The alignment mechanism 60 also includes a connecting seat 603 fixed to the first clamping piece 601. In order to optimize the layout, reduce the overall area and weight, and improve the structural stability, in this embodiment, the connecting seat 603 is arranged between the first side 401 and the second side 402 of the timing belt 40 and fixed to the first clamping piece 601. In other embodiments, the connecting seat 603 may also be arranged in other positions and may also be fixed to the second clamping piece 602, or simultaneously fixed to the first clamping piece 601 and the second clamping piece 602.

[0060] The alignment mechanism 60 also includes a mounting plate 604, which is arranged on the connecting seat 603. A roller 605 is arranged on the bottom surface of the mounting plate 604, and the outer ring surface of the roller 605 is used to contact the edge of the workpiece. Understandably, when the alignment mechanism 60 is driven to move towards the workpiece, the contact between the outer ring surface of the roller 605 and the edge of the workpiece can adjust the workpiece position. To avoid damage to the edge of the workpiece, the roller 605 can specifically be a rubber-coated bearing.

[0061] In order to improve the contact point between the alignment mechanism 60 and the workpiece and improve the alignment effect, in this embodiment, the mounting plate 604 extends along the conveying direction of the conveyor belt 10, and three rollers 605 are arranged evenly spaced along the conveying direction on the mounting plate 604.

[0062] To improve the installation stability of the alignment structure, the mounting base 70 in this embodiment includes a cantilever 701, which consists of a base plate 7011, a fixing plate 7012 arranged at one end of the base plate 7011, and reinforcing plates 7013 arranged on both sides of the base plate 7011.

[0063] The fixed plate 7012 has fixing holes 70121 for securing the cantilever 701 to the frame. One side of the reinforcing plate 7013 is connected to the fixed plate 7012, and the other side is connected to the base plate 7011, thus ensuring the overall structural strength. To minimize structural weight, the height of the reinforcing plate 7013 gradually decreases along the direction away from the fixed plate 7012, forming a triangular-like reinforcing plate 7013 structure.

[0064] The mounting base 70 also includes a support plate 702 disposed on the side of the base plate 7011 facing the timing belt 40. The outer end of the support plate 702 extends out of the base plate 7011, and an L-shaped plate 703 is disposed on the inner end of the support plate 702.

[0065] The driven wheel 30 is mounted on the L-shaped plate 703, and the driving wheel 20 and the drive unit 50 are mounted on the outer end of the support plate 702, thereby ensuring the stability of the overall structure.

[0066] In order to improve the motion stability of the alignment mechanism 60, in this embodiment, a movable guide rail 704 is also arranged on the side of the support plate 702 facing the synchronous belt 40. The movable guide rail 704 extends along the motion direction of the alignment mechanism 60, and the connecting seat 603 is slidably mounted on the movable guide rail 704.

[0067] To limit the movement range of the alignment mechanism 60 and prevent it from over-aligning, photoelectric sensors are arranged on both sides of the support plate 702. The alignment mechanism 60 also includes a light-shielding plate 606 that matches the position of the photoelectric sensors. Specifically, the photoelectric sensors can be arranged based on the size of the workpiece, and they can be placed at the minimum and maximum distances between a pair of alignment mechanisms 60, thereby limiting the movement range of the alignment mechanism 60.

[0068] In order to allow the movement range of the alignment mechanism 60 to be adjusted based on the actual workpiece size, in this embodiment, the side of the support plate 702 is provided with a plurality of mounting holes 7021 evenly spaced along the extension direction of the synchronous belt 40. The photoelectric sensor is fixed through the mounting holes 7021, and the installation position of the photoelectric sensor can be adjusted according to actual needs to meet actual requirements.

[0069] Based on the conveying and straightening devices described above, when a workpiece is transported by the conveyor belt 10 to the area below the conveying and straightening device, the drive unit 50 can drive a pair of alignment mechanisms 60 to move towards each other. The rollers 605 of the pair of alignment mechanisms 60 contact the edge of the workpiece and adjust the workpiece position to the preset straightening position. Then, the drive unit 50 drives the pair of alignment mechanisms 60 to move away from each other, completing the alignment and straightening of the workpiece. The pair of alignment mechanisms 60 are driven by a single drive unit 50, ensuring the synchronization of the movement on both sides. At the same time, the overall structure is simple, the stability is good, and there is no need for control by telescopic devices such as cylinders.

[0070] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0071] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A conveying and straightening device, characterized in that, include: A conveyor belt for transporting workpieces, wherein alignment stations are arranged on the conveyor belt; The driving wheel and the driven wheel are respectively located on both sides of the alignment station of the conveyor belt; A timing belt, with its two ends respectively fitted onto the driving pulley and the driven pulley, the timing belt including a first side and a second side disposed opposite to each other; A pair of alignment mechanisms are respectively installed on the first side and the second side, and the pair of alignment mechanisms are used to cooperate in adjusting the position of the workpiece located on the conveyor belt; A drive unit is used to drive the drive wheel to rotate, so as to drive the pair of alignment mechanisms to move towards each other or away from each other.

2. The conveying and straightening device according to claim 1, characterized in that, The alignment station of the conveyor belt is equipped with a proximity sensor for detecting the workpiece, and the proximity sensor is signal-connected to the drive unit.

3. The conveying and straightening device according to claim 1, characterized in that, The conveyor belt includes a first conveyor belt and a second conveyor belt arranged independently along the conveying direction, and the alignment station is arranged on the first conveyor belt.

4. The conveying and straightening device according to claim 1, characterized in that, The alignment mechanism includes: The first and second clamps cooperate to clamp and fix the synchronous belt. A connecting seat is arranged in the gap between the first side and the second side, and the connecting seat is fixedly disposed with the first clamp and / or the second clamp; A mounting plate is arranged on the side of the connecting seat facing the conveyor belt; A roller is arranged on the mounting plate, and the outer circumferential surface of the roller is used to contact the edge of the workpiece.

5. The conveying and straightening device according to claim 4, characterized in that, The mounting plate extends along the conveying direction of the conveyor belt, and the alignment mechanism includes a plurality of rollers arranged sequentially along the conveying direction of the conveyor belt.

6. The conveying and straightening device according to claim 4, characterized in that, The clamping surfaces of the first clamping piece and / or the second clamping piece are provided with toothed surfaces, which are embedded in the surface of the synchronous belt to limit the alignment mechanism.

7. The conveying and straightening device according to claim 4, characterized in that, It also includes a mounting base disposed on the side of the timing belt opposite to the conveyor belt, and the mounting base includes: The cantilever includes a base plate, a fixed plate arranged at one end of the base plate, and reinforcing plates arranged on both sides of the base plate. The fixed plate is provided with fixing holes. One side of the reinforcing plate is connected to the fixed plate, and the other side is connected to the base plate. The height of the reinforcing plate gradually decreases in the direction away from the fixed plate. A support plate is disposed on the side of the base plate facing the timing belt, and the outer end of the support plate extends beyond the base plate: The L-shaped plate is fixed to the inner end of the support plate; The driven wheel is mounted on the L-shaped plate, and the driving wheel and the drive unit are mounted on the outer end of the support plate.

8. The conveying and straightening device according to claim 7, characterized in that, It also includes a movable guide rail, which is arranged on the side of the support plate facing the synchronous belt and extends along the movement direction of the alignment mechanism, and the connecting seat is slidably mounted on the movable guide rail.

9. The conveying and straightening device according to claim 7, characterized in that, The support plate is also provided with photoelectric sensors on one or both sides, and the alignment mechanism includes a light-shielding plate that matches the position of the photoelectric sensors.

10. The conveying and straightening device according to claim 9, characterized in that, The mounting base is provided with a plurality of mounting holes evenly spaced along the extension direction of the synchronous belt, and the photoelectric sensor is fixed through the mounting holes.

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