Flower basket incoming material camera detection device capable of preventing poor insertion

Abstract

The utility model discloses a flower basket incoming material camera detection device for preventing poor insertion, which comprises a support, a support positioning seat, an area light source and a lifting photographing device, the support is of a cuboid frame structure, the upper part of the support is open, and the support positioning seat, the area light source and the lifting photographing device are all positioned in a cuboid space enclosed by the support; the supporting and positioning seat is arranged at the lower part of the bracket and is close to one wide edge of the bracket; the lifting photographing device is arranged on the wide edge, away from the supporting and positioning base, in the support and comprises a FA lens capable of moving in a lifting mode, and the optical axis of the FA lens is perpendicular to the area light source. According to the basket incoming material camera detection device, the basket in which the silicon wafers are inserted is laterally positioned on the supporting positioning seat, and then the FA lens scans and shoots gaps of the silicon wafers from top to bottom, so that whether the placement state of the silicon wafers is correct or not can be known, meanwhile, whether fragments exist in the basket or not can be identified, and a worker is instructed to eliminate the problems in time.

Description

Technical Field

[0001] The utility model belongs to the field of detection technology, in particular to a camera detection device for flower basket incoming materials for preventing defective inserts. Background Art

[0002] During the production of solar cell silicon wafers, many steps require inserting the wafers into baskets. The baskets are designed with vertical slots to allow the wafers to be inserted vertically, leaving gaps between adjacent wafers to facilitate the delivery of reagents to the wafer surfaces during the production process. If the wafers are not inserted correctly into the slots, the spacing between adjacent wafers will be uneven, and liquid accumulation in close proximity can easily occur, leading to quality issues. Therefore, it is necessary to inspect the incoming baskets before processing to ensure uniform spacing between the wafers. Furthermore, during the insertion process, some wafer debris may fall into the basket and stain the wafer surface, which can also affect the quality of the wafer processing. Therefore, it is also necessary to verify whether there are any debris trapped in the slots between the wafers.

[0003] Therefore, it is necessary to design a special device to complete the incoming material detection of the flower basket. Utility Model Content

[0004] The main purpose of the utility model is to provide a flower basket incoming material camera detection device that can prevent poor wafer insertion, and can know whether the placement state of silicon wafers is correct. At the same time, it can also identify whether there are debris problems in the flower basket, so as to instruct staff to eliminate the problem in time.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions: a flower basket incoming material camera detection device for preventing poor wafer insertion, which is used to detect the placement of silicon wafers in the flower basket, including a bracket, a support and positioning seat, a surface light source and a lifting and photographing device.

[0006] The bracket is a rectangular parallelepiped frame structure with an open top. The support and positioning seat, the surface light source, and the lifting and photographing device are all located in the rectangular parallelepiped space surrounded by the bracket.

[0007] The support and positioning seat is arranged at the lower part of the bracket and close to a wide side of the bracket;

[0008] The lifting photographing device is arranged on the wide side of the bracket away from the supporting positioning seat. The lifting photographing device includes a lifting movable FA lens, and the optical axis of the FA lens is perpendicular to the surface light source.

[0009] Specifically, four support feet for independently adjusting the support height are provided at the four corners of the lower portion of the bracket.

[0010] Specifically, the supporting and positioning seat includes a horizontally arranged base plate and a plurality of L-shaped pressure blocks arranged on the upper surface of the base plate. The flower basket includes two side surfaces and a plurality of connecting rods. A plurality of slots are provided along the busbar on the connecting rods. The flower basket is placed on the base plate on its side relying on one side, and the L-shaped pressure blocks clamp the side of the flower basket at the bottom.

[0011] Furthermore, there are at least two L-shaped pressing blocks located at diagonal positions of the bottom plate.

[0012] Furthermore, each L-shaped pressing block is provided with a locking screw for fixing the flower basket.

[0013] Specifically, the lifting photographing device also includes a motor, a lifting module and a lifting fixing plate. The FA lens is fixed on the front side of the lifting fixing plate. The motor provides power for the lifting module, and the lifting module drives the lifting fixing plate to move up and down.

[0014] Furthermore, there are two FA lenses, namely a first FA lens and a second FA lens. The first FA lens and the second FA lens are arranged up and down on the front of the lifting and fixing plate. The optical axes of the first FA lens and the second FA lens are perpendicular to the surface light source and have different focal lengths.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This flower basket incoming material camera inspection device positions the flower basket containing silicon wafers sideways on a support and positioning seat. The FA lens then scans the gaps between the silicon wafers from top to bottom, thereby determining whether the silicon wafers are placed correctly. At the same time, this can also identify whether there are debris problems in the flower basket, thereby instructing staff to promptly eliminate the problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of the flower basket incoming material camera detection device of this embodiment in working state;

[0018] Figure 2 This is a front view of the camera detection device for flower basket incoming materials in this embodiment;

[0019] Figure 3 A three-dimensional diagram of a support and positioning seat;

[0020] Figure 4 This is a three-dimensional diagram of the lifting camera device.

[0021] The numbers in the figure represent:

[0022] 1-Flower basket incoming material camera detection device,

[0023] 11- bracket, 111- support foot,

[0024] 12-support positioning seat, 121-base plate, 122-L-shaped pressure block, 123-locking screw,

[0025] 13-Surface light source,

[0026] 14-lifting camera device, 141-motor, 142-lifting module, 143-lifting fixing plate, 144a-first FA lens, 144b-second FA lens;

[0027] 2-turnbuckle, 21-side, 22-connecting rod;

[0028] 3-Silicon wafer. DETAILED DESCRIPTION

[0029] Example:

[0030] like Figure 1 As shown, the utility model is a flower basket incoming material camera detection device 1 for preventing poor wafer insertion, which is used to detect the placement of silicon wafers 3 in a flower basket 2, including a bracket 11, a support and positioning seat 12, a surface light source 13 and a lifting and photographing device 14.

[0031] like Figure 1 and Figure 2 As shown, the bracket 11 is a rectangular frame structure with an open upper portion and four support feet 11 with independently adjustable support heights provided at the four corners of the lower portion. The support positioning seat 12, the surface light source 13 and the lifting camera device 14 are all located in the rectangular space surrounded by the bracket 11.

[0032] The bracket 11 is the fixed foundation of the entire flower basket incoming material camera detection device 1, which determines whether the silicon wafer is easy to slide out of the flower basket 2. Therefore, it is necessary to use the support feet 11 for leveling to ensure safety during the detection process.

[0033] like Figure 1 and Figure 3 As shown, the support and positioning seat 12 is provided at the bottom of the bracket 11 and near a wide side of the bracket 11, including a horizontally arranged bottom plate 121 and a plurality of L-shaped pressing blocks 122 provided on the upper surface of the bottom plate 121. The flower basket 2 includes two side surfaces 21 and a plurality of connecting rods 22. The connecting rods 22 are provided with a plurality of slots along the busbar. The flower basket 2 is placed sideways on the bottom plate 121 with one side surface 21. There are at least two L-shaped pressing blocks 122 located at diagonal positions of the bottom plate 121. The L-shaped pressing blocks 122 clamp the lower side surface 21 of the flower basket 2. Each L-shaped pressing block 122 is provided with a locking screw 123 for securing the flower basket 2.

[0034] When the silicon wafers 3 are correctly inserted into their respective slots, adjacent silicon wafers 3 should be parallel to each other. During testing, the detection path is moved up and down, so the flower basket 2 should be placed sideways so that all silicon wafers 3 are in an up-and-down relationship. One side 21 of the flower basket 2 is at the bottom and placed on the base plate 121. When the flower basket 2 reaches the placement height, it is inserted from the horizontally downward side 21 to the bottom of the L-shaped pressure block 122 to complete the position. Then, the locking screw 123 is tightened downward to support the diagonal position of the side 21. This ensures that during the detection process, the flower basket 2 will not move relative to the entire flower basket incoming material camera detection device 1, preventing vibration during operation from affecting the accuracy of the detection.

[0035] like Figure 1 and Figure 2 As shown, the surface light source 13 is vertically arranged on the wide side of the bracket 11 close to the supporting and positioning seat 12.

[0036] The surface light source 13 is used to provide a backlight with uniform color for the silicon wafer 3, so that the image obtained during the photo detection has a significant color difference from the background, thereby improving the accuracy of the detection.

[0037] like Figure 1 and Figure 2 As shown, the lifting and photographing device 14 is arranged on the wide side of the bracket 11 away from the supporting positioning seat 12. The lifting and photographing device 14 includes a motor 141, a lifting module 142, a lifting and fixing plate 143, a first FA lens 144a and a second FA lens 144b. The motor 141 provides power for the lifting module 142, and the lifting module 142 drives the lifting and fixing plate 143 to rise and fall. The first FA lens 144a and the second FA lens 144b are respectively fixed to the front side of the lifting and fixing plate 143 and are arranged up and down. The optical axes of the first FA lens 144a and the second FA lens 144b are perpendicular to the surface light source 13 and the focal lengths of the two are different.

[0038] The first FA lens 144a and the second FA lens 144b can be raised and lowered synchronously, both scanning from the sides of the silicon wafer 3 to capture a long-lens image of the wafer 3. From the main view, the problematic wafer 3 may be tilted from either side or front to back. While the front-to-back tilt difference can be directly identified from a single FA lens image, a tilt difference from left to right is difficult to distinguish from a single image. Therefore, the first and second FA lenses 144a, 144b must identify the left-to-right height difference from two depth-of-field images. This ensures accurate determination of the correct placement of the wafer 3. It also allows identification of debris within the flower basket 2, allowing staff to promptly address the issue.

[0039] The process of the flower basket incoming material camera inspection device 1 is as follows: the flower basket 2 containing the silicon wafer 3 is lowered into the bracket 11 in a sideways position. Initially, the locking screw 123 is loosened, and the position of the flower basket 2 and the L-shaped pressing block 122 is offset. The flower basket 2 continues to descend until its lower side 21 reaches the height of the L-shaped pressing block 122. The flower basket 2 is then translated laterally so that the side 21 is stuck under the two L-shaped pressing blocks 122. The locking screw 123 is then tightened to complete the fixation of the flower basket 2. With the surface light source 13 providing illumination, the lifting module 142 drives the first FA lens 144a and the second FA lens 144b to move downward while capturing continuous images, thereby obtaining two images with different depths of field reflecting the position of the silicon wafer 2 in the flower basket 2. The images can then be compared to determine whether the silicon wafer 2 is tilted or whether there is residual debris. If either of these problems exists, the device will stop and instruct the staff to correct them.

[0040] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A camera inspection device for detecting wafers in a basket to prevent defective wafer insertion, used to detect the placement of wafers in the basket, characterized by: It includes a bracket, a supporting and positioning seat, a surface light source and a lifting and photographing device. The bracket is a rectangular parallelepiped frame structure with an open top. The support and positioning seat, the surface light source, and the lifting and photographing device are all located in the rectangular parallelepiped space surrounded by the bracket. The support and positioning seat is arranged at the lower part of the bracket and close to a wide side of the bracket; The lifting photographing device is arranged on the wide side of the bracket away from the supporting positioning seat. The lifting photographing device includes a lifting movable FA lens, and the optical axis of the FA lens is perpendicular to the surface light source.

2. The camera inspection device for preventing defective inserts from the flower basket according to claim 1, characterized in that: Four support feet for independently adjusting the support height are provided at the four corners of the lower part of the bracket.

3. The camera inspection device for preventing defective inserts from the flower basket according to claim 2, characterized in that: The supporting and positioning seat includes a horizontally arranged base plate and a plurality of L-shaped pressing blocks arranged on the upper surface of the base plate. The flower basket includes two side surfaces and a plurality of connecting rods. A plurality of slots are provided on the connecting rods along the busbar. The flower basket is placed sideways on the base plate relying on one side surface, and the L-shaped pressing blocks clamp the side surface of the flower basket at the bottom.

4. The camera inspection device for preventing defective inserts from the flower basket according to claim 3, characterized in that: There are at least two L-shaped pressing blocks located at diagonal positions of the bottom plate.

5. The camera inspection device for preventing defective flower baskets according to claim 3, characterized in that: Each L-shaped pressing block is provided with a locking screw for fixing the flower basket.

6. The camera inspection device for preventing defective inserts from the flower basket according to claim 1, characterized in that: The lifting photographing device also includes a motor, a lifting module and a lifting fixing plate. The FA lens is fixed on the front side of the lifting fixing plate. The motor provides power for the lifting module, and the lifting module drives the lifting fixing plate to move up and down.

7. The camera inspection device for preventing defective inserts from the flower basket according to claim 6, characterized in that: There are two FA lenses, namely a first FA lens and a second FA lens. The first FA lens and the second FA lens are arranged up and down on the front of the lifting and fixing plate. The optical axes of the first FA lens and the second FA lens are perpendicular to the surface light source and have different focal lengths.

Images