CN112478370A - Tray, warpage detection system and warpage detection method - Google Patents
Tray, warpage detection system and warpage detection method Download PDFInfo
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- CN112478370A CN112478370A CN202011286197.1A CN202011286197A CN112478370A CN 112478370 A CN112478370 A CN 112478370A CN 202011286197 A CN202011286197 A CN 202011286197A CN 112478370 A CN112478370 A CN 112478370A
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- Prior art keywords
- tray
- image
- flexible
- flexible member
- plane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D19/38—Details or accessories
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Packaging Frangible Articles (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
In the tray, the warpage detection system and the warpage detection method provided by the embodiment of the invention, the accommodating area defined on the tray body of the tray is provided with the accommodating groove, and the side wall of the accommodating groove is provided with the step part. The step part comprises a step surface and a side surface extending from the step surface to the surface of the tray body, and the first plane where the step surface is located between the second plane where the groove bottom of the accommodating groove is located and the third plane where the surface of the tray body is located. Therefore, whether the flexible part meets the warping specification or not can be detected rapidly by judging whether the warping portion of the flexible part exceeds the first plane where the step surface is located or not, the flexible part does not need to be taken out of the accommodating groove for warping detection, production efficiency is improved, and meanwhile the flexible part can be prevented from being wrinkled and damaged. In addition, the side wall of the tray cavity is not required to be provided with scale marks, and therefore the flexible part is prevented from being polluted. When the tray is used, the flexible members can be transported, and the warping specification of the flexible members can be detected.
Description
Technical Field
The invention belongs to the technical field of flexible display, and particularly relates to a tray, a warpage detection system and a warpage detection method.
Background
In the manufacturing process of the display panel, flexible members such as a flexible display screen and a flexible member are often placed on a tray, and the flexible members are transported to a next station for subsequent operations. The flexible members are easy to warp, and normal operation of the production line is affected, so that the warp of the flexible members needs to be detected, and the flexible members which do not meet the warp specification need to be identified.
Disclosure of Invention
In view of the above, the present invention provides a tray, a warpage detection system and a warpage detection method, which can quickly detect the warpage of a flexible member placed on the tray, thereby quickly identifying a flexible member that does not meet the warpage specification.
In a first aspect of the embodiments of the present invention, a tray for placing a flexible member is provided, including: a tray body; the tray body is provided with at least one accommodating area; the accommodating area is provided with an accommodating groove; a step part is arranged on the side wall of the accommodating groove; the stepped part comprises a stepped surface and a side surface extending from the stepped surface to the surface of the tray body, and the first plane where the stepped surface is located between the second plane where the bottom of the accommodating groove is located and the third plane where the surface of the tray body is located.
In an optional embodiment of the first aspect, the shape of the accommodating groove is adapted to the shape of the flexible member; the side wall of the containing groove is provided with at least one step part.
In an optional embodiment of the first aspect, a plurality of the steps are disposed at intervals on a side wall of the accommodating groove.
In an optional embodiment of the first aspect, the step portion is wound around a side wall of the accommodating groove; the first projection of the step surface on the tray body surrounds the second projection of the groove bottom of the accommodating groove on the tray body.
In an alternative embodiment of the first aspect, the first distance between the first plane and the second plane is a set warp height threshold.
In an optional embodiment of the first aspect, the flexible member is a flexible circuit board, and the first distance is 1 to 2 mm; preferably, the width of the step surface is 0.5-1.5 mm.
In an alternative embodiment of the first aspect, the second distance between the first plane and the third plane is 3-4 mm.
In an optional embodiment of the first aspect, a fixing groove for fixing the flexible member is formed at a bottom of the accommodating groove.
In a second aspect of the embodiments of the present invention, there is provided a warpage detection system, including a computer device, an image capturing device, and the tray of the first aspect, wherein the computer device is in communication with the image capturing device; the image shooting equipment is used for shooting the tray with the flexible members to obtain an image to be detected and transmitting the image to the computer equipment; and the computer equipment is used for carrying out image analysis on the image to be detected uploaded by the image shooting equipment so as to judge whether the flexible part meets the warping specification or not.
In a third aspect of the embodiments of the present invention, there is provided a warp detection method applied to the computer device and the image capturing device in the warp detection system according to the second aspect, the method including: the image shooting equipment shoots the tray with the flexible members to obtain an image to be detected and transmits the image to be detected to computer equipment; the computer equipment carries out image analysis on the image to be detected so as to judge whether the flexible part meets the warping specification; if the image analysis result of the image to be detected represents that the height value of the warping part of the flexible member does not exceed the warping height threshold value, judging that the flexible member meets the warping specification; and if the image analysis result of the image to be detected represents that the height value of the warping part of the flexible member exceeds the warping height threshold value, judging that the flexible member does not meet the warping specification.
In summary, compared with the prior art, in the tray, the warpage detection system and the warpage detection method provided in the embodiments of the present invention, the accommodating area disposed on the tray body of the tray is provided with the accommodating groove, and the side wall of the accommodating groove is provided with the step portion. Further, the stepped portion comprises a stepped surface and a side surface extending from the stepped surface to the surface of the tray body, and the first plane where the stepped surface is located between the second plane where the groove bottom of the accommodating groove is located and the third plane where the surface of the tray body is located. By the design, when the flexible part material is placed in the accommodating groove, whether the flexible part material meets the warping specification or not can be detected rapidly by judging whether the warping portion of the flexible part material exceeds the first plane where the step surface is located or not, the flexible part material does not need to be taken out of the accommodating groove and then warped for detection, production efficiency is improved, and meanwhile the flexible part material can be prevented from being wrinkled and damaged. In addition, the side wall of the tray cavity is not required to be provided with scale marks for detecting warping, and therefore the flexible parts are prevented from being polluted.
Drawings
Fig. 1 is a schematic structural diagram of a tray according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a receiving groove provided in the embodiment of the present invention.
Fig. 3 is an enlarged schematic cross-sectional view taken along the direction I-I in fig. 2.
Fig. 4 is a perspective view illustrating the step structure shown in fig. 3.
Fig. 5 is a schematic view of one arrangement manner of the step portion according to the embodiment of the present invention.
Fig. 6 is a schematic view of another arrangement manner of the step part provided in the embodiment of the present invention.
Fig. 7 is a schematic view of a first relative position between the flexible member without warpage and the step portion in the accommodating groove.
Fig. 8 is a schematic view of a second relative position between the warped flexible member and the step portion in the accommodating groove.
Fig. 9 is a third relative position of the warped flexible member in the accommodating groove and the step portion.
Fig. 10 is a schematic view of a communication architecture of a warp detection system according to an embodiment of the present invention.
Fig. 11 is a flowchart of one method for detecting whether the flexible member meets the warpage specification.
Icon:
100-a tray;
1-a tray body; 11-a containment area; 111-a receiving groove; 1111-a first cavity; 1112-a second cavity; 1113-fixed groove;
2-a step portion; 21-step surface; 22-side;
3-flexible members;
200-a warp detection system;
4-a computer device;
5-an image capture device;
p 1-first plane; p 2-second plane; p 3-third plane.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner" and "outer" etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, when an element is referred to as being "formed on" another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present.
As described in the foregoing background art, taking the flexible circuit board as an example, in order to avoid the warped flexible circuit board from being scratched to the spray valve of the glue coating apparatus during the subsequent operation, it is necessary to detect whether the warped flexible circuit board meets the warp specification before bonding the screen body and the flexible circuit board. However, common detection methods may include the following two.
The first warpage detection method is to take out the flexible circuit board from the tray and place the flexible circuit board on a platform, and a plug gauge or a vernier caliper is used for measuring whether the warpage of the flexible circuit board meets the warpage specification. However, the method has low detection efficiency and is easy to generate false detection, and the flexible circuit board needs to be repeatedly taken and placed, so that the flexible circuit board can be wrinkled and damaged in the taking and placing process.
In the second warpage detection method, scale marks are arranged on the side wall of the tray cavity, and whether the warpage degree of the flexible circuit board meets the warpage specification or not is detected through the scale marks. However, when the scale marks are arranged, the scale marks drawn by the oil pen may contaminate the flexible circuit board. If the concave structure is used as the scale mark, the relative position relationship between the flexible circuit board and the scale mark is difficult to observe visually. If the convex structure is used as the scale mark, the flexible circuit board may scratch the scale mark when warping, and the flexible circuit board is damaged.
In order to solve the technical problems, the inventor innovatively improves the tray structure of the flexible member, and by arranging the step part on the side wall of the accommodating groove for accommodating the flexible member in the tray, whether the flexible member meets the warping specification can be quickly detected by judging whether the warping part of the flexible member exceeds the plane of the step surface. On the one hand, need not to take out flexible portion material and carry out the warpage measurement, can improve production efficiency, avoid flexible portion material fold and damage to appear simultaneously. On the other hand, need not to adopt methods such as oily pen, indent structure or evagination structure to set up the scale mark that is used for detecting the warpage, can avoid flexible portion material to receive the pollution and avoid flexible portion material to scratch the scale mark and arouse the damage of flexible portion material when taking place the warpage. Alternative embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
Referring to fig. 1, a schematic structural diagram of a tray 100 according to an alternative embodiment of the present invention is shown, in which the tray 100 includes a tray body 1, and the tray body 1 is provided with at least one accommodating area 11. Referring to fig. 1 and fig. 2, the accommodating area 11 is provided with an accommodating groove 111 for accommodating the flexible member, and a side wall of the accommodating groove 111 is provided with a step portion 2.
Referring to fig. 3 and 4 in combination, the step 2 may include a step surface 21 and a side surface 22 extending from the step surface 21 toward the surface of the tray body 1. Further, a plane on which the step surface 21 is located may be defined as a first plane p1, a plane on which the groove bottom of the receiving groove 111 is located may be defined as a second plane p2, and a plane on which the surface of the tray body 1 is located may be defined as a third plane p 3. The first plane p1 is located between the second plane p2 and the third plane p 3. In this embodiment, the side surface 22 may include three vertical surfaces connected end to end, and the step portion 2 may be formed by expanding the side wall of the receiving groove 111.
By such design, when the flexible member is placed in the accommodating groove 111, whether the flexible member meets the warpage specification can be rapidly detected by judging or observing whether the warpage portion of the flexible member exceeds the first plane p1 where the step surface 21 is located, and whether the warpage of the flexible member meets the set process standard can be further detected, so that the flexible member can be taken out from the corresponding accommodating groove 111 when the warpage of the flexible member is detected not to meet the set process standard, and the influence of the warped flexible member on the normal operation of the subsequent production line is avoided. For example, the flexible circuit board can be prevented from scratching the spray valve of the gluing equipment during subsequent gluing process, and normal gluing operation is ensured.
Further, step face 2 is to the lateral wall of storage tank 111 expand outward and form, need not to adopt oil pen, indent structure or evagination structure to set up the scale mark, can avoid flexible portion material to receive the pollution and avoid flexible portion material to scrape when taking place the warpage and rub the scale mark and arouse the damage of flexible portion material. Whether the warping portion of the flexible member exceeds the first plane p1 where the step surface 21 is located or not can be quickly and accurately detected, and therefore misjudgment possibly caused by manual plug gauge or vernier caliper measurement is reduced.
In practical applications, the inventors found that some positions of the flexible member are likely to be warped, and in order to detect the warping of the flexible member more accurately and comprehensively, the step portion may be provided according to the actual shape of the flexible member. For example, the shape of the receiving groove 111 may be adapted to the shape of the flexible member, taking one of the shapes of the flexible circuit boards as an example, referring to fig. 5, the receiving groove 111 may include a first cavity 1111 and a second cavity 1112, the second cavity 1112 is communicated with the first cavity 1111 and extends in a direction away from the first cavity 1111, and the shape of the receiving groove 111 formed by the first cavity 1111 and the second cavity 1112 may be the same as or substantially the same as the shape of the flexible member. Further, the sidewall of the first cavity 1111 and/or the second cavity 1112 is provided with at least one step portion 2. For example, the sidewall of the first cavity 1111 may be provided with three step portions 2, and the second cavity 1112 and the sidewall may be provided with three step portions 2.
It should be understood that, in practical implementation, the number of the step parts 2 arranged on the side wall of the first cavity 1111 and/or the second cavity 1112 may be adjusted, and is not limited to the plurality of step parts 2 shown in fig. 5. By the design, accurate and comprehensive detection of the warping of the flexible part materials can be achieved through the plurality of step portions 2, and the warping condition caused by the omission of the flexible part materials at certain positions is avoided.
In an alternative embodiment, the side walls of the first cavity 1111 and the second cavity 1112 may be provided with a plurality of step portions 2 at intervals, so that the warpage detection for a plurality of positions of the flexible member can be realized.
In practical applications, the inventors also found that when the flexible member is warped, the degree of warping may be different, and some slight warping may not affect subsequent operations, and generally, the warping height threshold of the flexible circuit board is 2mm, and exceeding 2mm will affect the operation accuracy. The height of the step part 2 can be designed according to the tolerable warping height threshold of the flexible member. To achieve this, with continued reference to FIG. 3, the first distance d12 between the first plane p1 and the second plane p2 can be designed to be 1-2 mm. Further, the first distance d12 may be understood as the height of the step part 2. Design like this, can adjust step portion 2's height according to operating condition to the warpage height threshold value of adjustment flexible member material.
For example, in some production lines, if the warpage of the flexible member needs to be strictly controlled, the first distance d12 may be designed to be 1mm, so as to reduce the warpage height threshold of the flexible member, and further increase the severity of the warpage detection on the flexible member. For another example, in some production lines, if the warpage of the flexible member is not enough to affect the subsequent operations, the first distance d12 may be designed to be 2mm, so as to increase the warpage height threshold of the flexible member, and further reduce the severity of the warpage detection on the flexible member. In some examples, the second distance d13 between the first plane p1 and the third plane p3 may be 3-4 mm. For example, the second distance d13 may be designed to be 3.5 mm. With such a design, the flexible member can be prevented from falling from the accommodating groove 111 during the process of transferring the tray 100.
In one possible embodiment, in order to visually detect the warpage of the flexible member through the step portion 2, please continue to refer to fig. 4, the horizontal width W of the step surface 21 may be designed to be 0.5-1.5 mm, for example, the horizontal width W may be designed to be 1 mm. By such design, a relatively obvious and intuitive fall can be formed between the step part 2 and the bottom of the accommodating groove 111, and further the warpage detection of the flexible member located in the accommodating groove 111 is realized. In this way, the warpage of the flexible member can be intuitively detected by the stepped portion 2.
In an alternative embodiment, in order to achieve the detection of the overall warpage of the flexible member, please refer to fig. 4 and fig. 6, the step portion 2 may be disposed around the sidewall of the accommodating groove 111, and the first projection of the step surface 21 on the tray body 1 surrounds the second projection of the bottom of the accommodating groove 111 on the tray body 1. The horizontal width W of the step surface of the step portion 2 shown in fig. 6 may be 0.5 to 1.5 mm. In this way, the step portion 2 arranged around the side wall of the accommodating groove 111 can be used as a warpage detection reference of any position of the flexible member, so that overall detection of the overall warpage condition of the flexible member can be realized.
In addition, after considering all the tolerances, the distance between the step surface 21 and the flexible member disposed in the receiving groove 111 in the horizontal direction may be designed to be 0.35 mm. Therefore, the flexible part and the side wall of the accommodating groove 111 can be prevented from being scratched in the process of taking and placing the flexible part.
In an alternative embodiment, referring to fig. 2, the bottom of the accommodating groove 111 is formed with a fixing groove 1113 for fixing the flexible member. So design can realize the fixed to flexible material through fixed slot 1113, avoids rocking back and forth and harms flexible material at the in-process flexible material of transporting flexible material in storage tank 111.
On the basis, the embodiment of the present application further classifies and explains the warping condition of the flexible member placed in the accommodating groove 111. Referring to fig. 2 and fig. 7, schematic diagrams of the situation that the flexible member 3 is not warped when the flexible member 3 is placed in the accommodating groove 111 are shown. When the flexible member 3 is not warped, the thickness of the flexible member 3 does not exceed the first plane p1 where the step surface 21 is located.
Referring to fig. 2 and 8, schematic diagrams illustrating a warpage of the flexible member 3 when the flexible member 3 is placed in the accommodating groove 111 are shown. In the case where the flexible member 3 is warped, the thickness of the flexible member 3 does not exceed the first plane p1 on which the step surface 21 is located, and in this case, it can be determined that the warp height of the flexible member 3 does not exceed the warp height threshold, and it can be determined that the flexible member 3 satisfies the warp specification without affecting the subsequent work, and therefore, it is not necessary to take out the flexible member 3 from the accommodating groove 111.
Referring to fig. 2 and 9, schematic diagrams illustrating a warpage of the flexible member 3 when the flexible member 3 is placed in the accommodating groove 111 are shown. At this time, the thickness of the flexible member 3 exceeds the first plane p1 where the step surface 21 is located, and in this case, it is possible to determine that the warp height of the flexible member 3 exceeds the warp height threshold value, and it is possible to determine that the flexible member 3 does not satisfy the warp specification, which affects the subsequent work, and therefore, it is necessary to take out the flexible member 3 from the accommodating groove 111.
It will be appreciated that the thickness of the flexible member 3 may also be taken into account when designing the first distance d12 between the first plane p1 and the second plane p 2. For example, the preferred first distance d12 in this embodiment may be 2mm in consideration of the thickness of the flexible member 3.
In the practical implementation process, the warpage detection mode of the flexible member can be various. For example, one of the warpage detection modes can be observed manually, and the other warpage detection mode can be monitored automatically by a computer by using an image recognition technology. For example, referring to fig. 10, a schematic diagram of a communication structure of a warp detection system 300 is shown, the warp detection system 300 may include a computer device 4, an image capturing device 5 and the tray 100, and the computer device 4 communicates with the image capturing device 5.
Further, the image shooting device 5 is used for shooting the tray 100 with the flexible members placed on it to obtain an image to be detected and transmitting the image to the computer device 4, and the computer device 4 is used for performing image analysis on the image to be detected uploaded by the image shooting device 5 to judge whether the flexible members meet the warping specification.
In the present embodiment, the image capturing device 5 may be a time-of-flight camera (TOF camera) that can capture depth-of-field information of an object, and when the tray 100 on which the flexible member is placed is captured by the camera, an area around the step portion 2 may be included in the obtained image to be detected. When the computer device 4 performs the warpage analysis, the similarity analysis may be performed on the image to be detected and the preset standard image, or the region of the step portion may be extracted from the image to be detected, and the image of the region of the step portion is compared with the preset standard image to determine whether the flexible member meets the warpage specification. In this way, the detection of the warpage of the flexible member is quickly realized by the image processing function of the computer device 4.
On the basis of the above, please refer to fig. 11, which shows a flowchart of a method for detecting whether the flexible member meets the warpage specification by the warpage detection system 300, the method can be applied to the warpage detection system 300 in fig. 10, and further can include the following steps S1 and S2.
And step S1, shooting the tray with the flexible members by the image shooting equipment to obtain an image to be detected, and transmitting the image to be detected to computer equipment.
In step S2, the computer device performs image analysis on the image to be detected to determine whether the flexible member meets the warp specification.
For example, if the image analysis result of the image to be detected indicates that the height value of the warped portion of the flexible member 3 does not exceed the warp height threshold value, it is determined that the flexible member 3 satisfies the warp specification, and if the image analysis result of the image to be detected indicates that the height value of the warped portion of the flexible member 3 exceeds the warp height threshold value, it is determined that the flexible member 3 does not satisfy the warp specification.
In some examples, the computer device 4 may perform similarity analysis on the image to be detected and a preset standard image to determine whether the flexible member meets the warping specification. For example, if the similarity between the image to be detected and the standard image is greater than or equal to the set similarity, it may be determined that the flexible member satisfies the warp specification, and if the similarity between the image to be detected and the standard image is less than the set similarity, it may be determined that the flexible member does not satisfy the warp specification. The set similarity may be set according to actual conditions, and is not limited herein.
In this way, by executing the contents described in the above steps S1 and S2, there is no need to manually perform observation and examination one by one, and thus the detection of the warpage of the flexible member can be quickly and continuously achieved.
In summary, the tray, the warpage detection system and the warpage detection method provided in the embodiment of the present invention can detect whether the flexible member 3 meets the warpage specification by determining whether the warped portion of the flexible member 3 exceeds the step surface 2 by providing the step portion 2 on the side wall of the accommodating groove 111 for detecting whether the flexible member 3 meets the warpage specification. On the one hand, need not to take out flexible portion material 3 and carry out the warpage measurement, improved production efficiency, can avoid flexible portion material 3 fold and damage to appear simultaneously. On the other hand, need not to adopt oily pen, indent structure or evagination structure to set up and be used for detecting the crooked scale mark, can avoid flexible portion material 3 to receive the pollution and avoid flexible portion material 3 to scratch the scale mark and arouse the damage of flexible portion material 3 when taking place the warpage. It can be understood that, when the pallet 100 is used, not only the flexible member 3 but also the warp specification detection of the flexible member 3 can be performed.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A tray for holding flexible members, comprising: a tray body;
the tray body is provided with at least one accommodating area;
the accommodating area is provided with an accommodating groove, and the flexible members are placed in the accommodating groove;
a step part is arranged on the side wall of the accommodating groove;
the stepped part comprises a stepped surface and a side surface extending from the stepped surface to the surface of the tray body, and the first plane where the stepped surface is located between the second plane where the bottom of the accommodating groove is located and the third plane where the surface of the tray body is located.
2. The tray of claim 1, wherein the shape of the receiving groove is adapted to the shape of the flexible member, and the sidewall of the receiving groove is provided with at least one of the steps.
3. The tray of claim 2, wherein the sidewall of the container is provided with a plurality of steps at intervals.
4. The tray according to claim 1, wherein the step portion is wound around a side wall of the accommodating groove; the first projection of the step surface on the tray body surrounds the second projection of the groove bottom of the accommodating groove on the tray body.
5. The tray of any of claims 1-4, wherein a first distance between the first plane and the second plane is a set warp height threshold.
6. The tray according to claim 5, wherein the flexible member is a flexible circuit board, and the first distance is 1 to 2 mm;
preferably, the width of the step surface is 0.5-1.5 mm.
7. A tray according to any one of claims 1 to 4, wherein the second distance between the first plane and the third plane is 3 to 4 mm.
8. The tray of claim 1, wherein the bottom of the receiving groove is provided with a fixing groove for fixing the flexible member.
9. A warpage detection system, comprising a computer device, an image capture device and a tray as claimed in any of claims 1 to 8, the computer device in communication with the image capture device;
the image shooting equipment is used for shooting the tray with the flexible members to obtain an image to be detected and transmitting the image to the computer equipment;
and the computer equipment is used for carrying out image analysis on the image to be detected uploaded by the image shooting equipment so as to judge whether the flexible part meets the warping specification or not.
10. A warp detection method applied to a computer device and an image capturing device in the warp detection system according to claim 9, the method comprising:
the image shooting equipment shoots the tray with the flexible members to obtain an image to be detected and transmits the image to be detected to computer equipment;
the computer equipment carries out image analysis on the image to be detected so as to judge whether the flexible part meets the warping specification; if the image analysis result of the image to be detected represents that the height value of the warping part of the flexible member does not exceed the warping height threshold value, judging that the flexible member meets the warping specification; and if the image analysis result of the image to be detected represents that the height value of the warping part of the flexible member exceeds the warping height threshold value, judging that the flexible member does not meet the warping specification.
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| CN202011286197.1A CN112478370A (en) | 2020-11-17 | 2020-11-17 | Tray, warpage detection system and warpage detection method |
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| CN202011286197.1A CN112478370A (en) | 2020-11-17 | 2020-11-17 | Tray, warpage detection system and warpage detection method |
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