Material box detection device

Abstract

The utility model discloses a material box detection device, including bearing platform and photoelectric sensor, the bearing platform is matched with the material box and is used for bearing the material box, the material box is provided with the slide glass cavity with the top opening, the front end of the bearing platform is the material incoming end, the battery pieces conveyed by the material incoming end are stacked in the slide glass cavity layer by layer, the photoelectric sensor is arranged on the bearing platform, the photoelectric sensor is arranged on the photoelectric sensor, and the photoelectric sensor is arranged on the photoelectric sensor. The material box is provided with a material incoming end and a substrate carrying cavity, the cavity bottom of the substrate carrying cavity is obliquely arranged towards the material incoming end, empty grooves are oppositely formed in the two sides of the material incoming end of the material box, the tops of the empty grooves are opened and are communicated with the substrate carrying cavity, and the photoelectric sensor is arranged opposite to the empty grooves; the distance between the side wall, close to the feeding end, of the slide glass cavity and the photoelectric sensor is not equal to the distance between the side wall, away from the feeding end, of the slide glass cavity and the photoelectric sensor. The material box detection device provided by the utility model can find the reverse placement condition of the material box in time, and reduces the loss of battery pieces.

Description

Technical Field

[0001] The utility model relates to the technical field of battery cell production equipment, in particular to a material box detection device. Background Art

[0002] The testing and sorting of solar cells is not only the last step in the production of cells, but also the first step in the production of modules. Due to the randomness of the production conditions of cells, the performance of the produced cells is also different. In order to effectively integrate cells with the same or similar performance, they need to be classified into different levels according to their performance parameters (such as current, voltage, efficiency, film color, etc.).

[0003] After the battery cells have been inspected for appearance by the GP camera and for EL by the Halm machine, they will be sorted into the corresponding gear boxes for collection according to their own performance parameters. When the number of battery cells in a gear box is full, its box will be transported to the unloading point through the automated track. The unloading personnel will be responsible for taking out the battery cells, packaging them, and then putting the box back on the automated track and transporting it back to the original position of the sorting machine. In the current testing process, sometimes the neatness of the battery cells is affected during sorting due to the reverse placement of the box. When the box hits the packaging line or other boxes in the logistics transmission belt of the automated track, it is easy to cause the battery cells in the reversed box to collapse and break.

[0004] Therefore, it is necessary to develop a device for detecting the reverse placement of the material box for the test and sorting auxiliary machine, so as to timely discover the reverse placement of the material box and reduce the loss of battery cells. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a material box detection device, which can timely detect the situation that the material box is placed upside down and reduce the loss of battery cells.

[0006] In order to solve the above technical problems, the utility model provides a material box detection device, including a carrying platform and a photoelectric sensor, the carrying platform is adapted to the material box and is used to carry the material box, the material box is provided with a wafer carrier cavity with a top opening, the front end of the carrying platform is a material input end, and the battery cells conveyed by the material input end are stacked layer by layer in the wafer carrier cavity,

[0007] The bottom of the wafer carrier cavity is tilted toward the material-incoming end, the material box is provided with empty slots on both sides of the material-incoming end, the top of the empty slots is opened and communicated with the wafer carrier cavity, and the photoelectric sensor is arranged opposite to the empty slots;

[0008] The distance between the side wall of the wafer carrier cavity close to the material input end and the photoelectric sensor is not equal to the distance between the side wall of the wafer carrier cavity far from the material input end and the photoelectric sensor.

[0009] As an improvement of the above solution, the distance between the side wall of the wafer carrier cavity close to the incoming material end and the photoelectric sensor is 1 / 3, 2 / 3 or 3 / 4 of the length of the wafer carrier cavity in the direction of cell conveying at the incoming material end.

[0010] As an improvement to the above solution, when the material box is fully loaded, the light beam emitted by the photoelectric sensor passes through the material box or is blocked by the battery cell in the wafer carrier cavity.

[0011] As an improvement of the above solution, the projection of the bottom of the slide chamber on the horizontal plane is a rectangle.

[0012] As an improvement of the above solution, the light beam emitted by the photoelectric sensor is parallel to the bottom of the slide cavity.

[0013] As an improvement of the above solution, the photoelectric sensor is arranged on a bracket, the photoelectric sensor is slidably connected to the bracket via a slider, and the photoelectric sensor can slide along the bracket in a vertical direction.

[0014] As an improvement of the above solution, the photoelectric sensor is connected to the bracket through an adapter, the adapter includes a fixing part and a rotating head, the fixing part is connected to the bracket, the rotating head is connected to the photoelectric sensor, and the rotating head can rotate relative to the fixing part.

[0015] As an improvement of the above solution, it also includes a battery cell loading conveyor line, which is used to convey battery cells of the same gear to the incoming end of the supporting platform.

[0016] As an improvement of the above solution, it also includes a material box transfer conveyor line, and the material box transfer conveyor line is used to drive the material box to move.

[0017] As an improvement of the above solution, an alarm is also included, and the photoelectric sensor is electrically connected to the alarm.

[0018] The implementation of this utility model has the following beneficial effects:

[0019] The utility model discloses a material box detection device, by placing the material box on a carrier table, the battery cell feeding conveyor line conveys the battery cells of the same gear to the incoming material end of the carrier table, and drops the battery cells into the carrier cavity from the top of the material box, and the battery cells falling into the carrier cavity will form a preset angle with the horizontal plane located at the incoming material end of the carrier table, by arranging empty slots on both sides of the incoming material end on the material box, and arranging the photoelectric sensor and the empty slots relative to each other, by utilizing the height difference of the battery cells at both ends of the carrier cavity when the material box is fully loaded, according to whether the light beam emitted by the photoelectric sensor is blocked when the material box is fully loaded, it can be judged whether the material box currently in the carrier table is placed upside down (when the material box is placed normally and the box is fully loaded, the light beam emitted by the photoelectric sensor should not be blocked, if the light beam emitted by the photoelectric sensor is blocked, it means that the material box is placed upside down; when the material box is placed normally and the box is fully loaded, the light beam emitted by the photoelectric sensor should be blocked, if the light beam emitted by the photoelectric sensor is not blocked, it also means that the material box is placed upside down);

[0020] The utility model can timely discover the upside-down material box to prevent the upside-down material box from flowing into the next process, and further prevent the loss of battery cells during transportation due to irregularity in the upside-down material box;

[0021] The utility model does not need to modify the existing material box structure, and can directly detect whether the material box on the supporting platform is placed upside down based on the existing material box, with low investment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of an embodiment of a material box detection device of the utility model;

[0023] Figure 2 yes Figure 1 Side view of

[0024] Figure 3 yes Figure 2 AA cross-sectional view of the middle material box when it is placed normally;

[0025] Figure 4 yes Figure 3 Schematic diagram of the structure when the material box is fully loaded with battery cells;

[0026] Figure 5 yes Figure 2 AA cross-sectional view of the middle material box when it is placed upside down;

[0027] Figure 6 yes Figure 5 Schematic diagram of the structure when the material box is fully loaded with battery cells. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0029] like Figures 1 to 6 As shown, the utility model discloses an embodiment of a material box detection device, including a photoelectric sensor 1, and a carrier table (not shown in the figure) adapted to the material box 2 and used to carry the material box 2. The material box 2 is provided with a wafer carrier cavity 21 with a top opening, and the front end of the carrier table is a material input end 31. The battery cell feeding conveyor line (not shown in the figure) conveys the same-level battery cells a to the material input end 31 of the carrier table, and the battery cells a conveyed from the material input end 31 are stacked layer by layer in the wafer carrier cavity 21 of the material box 2. Among them, the cavity bottom 22 of the wafer carrier cavity 21 is inclined toward the material input end 31, and the material box 2 is provided with empty slots 23 on both sides of the material input end 31. The top opening of the empty slots 23 is provided and communicated with the wafer carrier cavity 21, and the photoelectric sensor 1 is arranged opposite to the empty slots 23; when the material box 2 is fully loaded, the light beam emitted by the photoelectric sensor 1 passes through the material box 2, or is blocked by the battery cells a in the wafer carrier cavity 21.

[0030] In this embodiment, by placing the material box 2 on the support platform, the battery cell feeding conveyor line conveys the battery cell a of the same gear to the incoming end 31 of the support platform, and drops it into the carrier cavity 21 from the top of the material box 2. The battery cell a falling into the carrier cavity 21 will form a preset angle with the horizontal plane located at the incoming end 31 of the support platform (that is, the inclination angle of the cavity bottom 22 to the incoming end 31). By arranging empty slots 23 on both sides of the incoming end 31 on the material box 2, the photoelectric sensor 1 is arranged opposite to the empty slots 23. By utilizing the height difference of the battery cells a at both ends of the carrier cavity 21 when the material box 2 is fully loaded, according to whether the light beam emitted by the photoelectric sensor 1 is blocked when the material box 2 is fully loaded, it can be judged whether the material box 2 in the current support platform is placed upside down; when the material box 2 is placed normally and the box is fully loaded, the light beam emitted by the photoelectric sensor 1 should be When it is not blocked, if the light beam emitted by the photoelectric sensor 1 is blocked, it means that the material box 2 is placed upside down; when the material box 2 is placed normally and the box is fully loaded, the light beam emitted by the photoelectric sensor 1 should be blocked, if the light beam emitted by the photoelectric sensor 1 is not blocked, it also means that the material box 2 is placed upside down; this embodiment can promptly discover the upside-down material box 2 to avoid the upside-down material box 2 from flowing into the next process, and avoid the battery cells in the material box from colliding with the packaging line or other material boxes in the logistics transmission belt of the automated track after the material box is placed upside down, thereby reducing the chipping and fragmentation of the battery cells and reducing the additional loss of the battery cells; in addition, this embodiment does not need to modify the existing structure of the material box 2, and can directly detect whether the material box 2 on the carrier is placed upside down based on the existing material box 2, with low investment cost.

[0031] As a case, the material box 2 can be placed upright when the higher end of the cavity bottom 22 of the material box 2 in the carrier is close to the material input end 31 of the carrier. In contrast, the material box 2 can be placed upside down when the higher end of the cavity bottom 22 of the material box 2 in the carrier is away from the material input end 31 of the carrier.

[0032] As another case, the material box 2 can be placed upright when the higher end of the cavity bottom 22 of the material box 2 in the carrier is far away from the material input end 31 of the carrier. In contrast, the material box 2 can be placed upside down when the higher end of the cavity bottom 22 of the material box 2 in the carrier is close to the material input end 31 of the carrier.

[0033] Next, an example is taken for explanation when the material box 2 is normally placed on the carrying platform and the lower side of the cavity bottom 22 faces the material input end 31 of the carrying platform.

[0034] During normal placement, the same-level cells a conveyed by the cell loading conveyor line are neatly stacked in the cell carrier cavity 21, and each cell a in the cell carrier cavity 21 is parallel to the cavity bottom 22. The fully loaded material box 2 will be transported by the material box 2 transfer conveyor line (not shown in the figure). During the transportation of the material box 2, the neatly stacked cells a are not easily damaged.

[0035] In this embodiment, the projection of the bottom 22 of the wafer cavity 21 in the material box 2 on the horizontal plane is a rectangle, and the two opposite side walls of the material box 2 are symmetrically arranged. The material box 2 is placed on the carrier, and there are only two situations, namely, reverse placement and normal placement, and it is difficult to find out whether the material box 2 is reversed based on the appearance of the material box 2. In this embodiment, a photoelectric sensor 1 is arranged, and the distance between the side wall of the wafer cavity 21 close to the material input end 31 and the photoelectric sensor 1 is set to be unequal to the distance between the side wall of the wafer cavity 21 far from the material input end 31 and the photoelectric sensor 1. According to whether the light beam emitted by the photoelectric sensor 1 is blocked when the battery in the wafer cavity 21 is fully loaded, the tilt direction of the battery cell in the wafer cavity 21 is judged, and whether the material box 2 is reversed is further judged.

[0036] Specifically, the distance between the side wall of the wafer carrier cavity 21 close to the material input end 31 and the photoelectric sensor 1 can be 1 / 4, 1 / 3, 2 / 3, 3 / 4, etc. of the length of the wafer carrier cavity 21 in the conveying direction of the battery cell a at the material input end 31.

[0037] Combination Figure 4 In this embodiment, the photoelectric sensor 1 is arranged near the material-incoming end 31 of the carrier platform. The fully loaded material box 2 is normally placed in the carrier platform, and the battery cell a on the top thereof is low near the material-incoming end 31 and high away from the material-incoming end 31. Therefore, when the photoelectric sensor 1 near the material-incoming end 31 of the carrier platform emits a light beam, the light beam will not be blocked; Figure 5 and Figure 6If the fully loaded material box 2 in the supporting platform is placed upside down at this time, the battery cell a on the top will be higher on the side close to the incoming material end 31 and lower on the side away from the incoming material end 31. Therefore, when the photoelectric sensor 1 close to the incoming material end 31 of the supporting platform emits a light beam, the light beam will be blocked by the battery cell a, thereby detecting the upside-down material box 2.

[0038] In addition, preferably, the photoelectric sensor 1 is electrically connected to an alarm so as to sound an alarm when the light emitted by the photoelectric sensor 1 is blocked, so as to facilitate the staff to deal with the upside-down material box 2 in time.

[0039] The light beam emitted by the photoelectric sensor 1 is parallel to the cavity bottom 22 of the wafer carrier cavity 21, so that the light beam emitted by the photoelectric sensor is parallel to the battery cell a stacked on the top of the wafer carrier cavity 21, avoiding the existence of an angle between the light beam emitted by the photoelectric sensor and the battery cell a on the top, and ensuring the accuracy of judging whether the material box 2 is placed upside down by whether the light beam emitted by the photoelectric sensor is blocked.

[0040] Preferably, the photoelectric sensor 1 is arranged on a bracket, and the photoelectric sensor 1 is slidably connected to the bracket through a slider, and the photoelectric sensor 1 can slide along the bracket in a vertical direction. When the photoelectric sensor 1 slides vertically to the bottom of the empty slot 23, and the light beam of the photoelectric sensor 1 can just enter the wafer carrier cavity 21, it can be found earlier whether the material box 2 is placed upside down according to the blocking of the light beam by the stacked battery slices a, which provides more time for transferring the upside-down material box 2, which helps to improve production efficiency.

[0041] More preferably, the photoelectric sensor 1 is connected to the bracket via an adapter, the adapter includes a fixing part and a rotating head, the fixing part is connected to the bracket, the rotating head is connected to the photoelectric sensor 1, and the rotating head can rotate relative to the fixing part, so as to facilitate the adjustment of the light beam of the photoelectric sensor 1.

[0042] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A material box detection device, characterized in that: It includes a carrying platform and a photoelectric sensor, wherein the carrying platform is used to carry a material box, the material box is provided with a wafer carrier cavity with a top opening, the front end of the carrying platform is a material input end, and the battery cells transported by the material input end are stacked layer by layer in the wafer carrier cavity; The bottom of the wafer carrier cavity is tilted toward the material-incoming end, the material box is provided with empty slots on both sides of the material-incoming end, the top of the empty slots is opened and communicated with the wafer carrier cavity, and the photoelectric sensor is arranged opposite to the empty slots; The distance between the side wall of the wafer carrier cavity close to the material input end and the photoelectric sensor is not equal to the distance between the side wall of the wafer carrier cavity far from the material input end and the photoelectric sensor.

2. The material box detection device according to claim 1, characterized in that: The distance between the side wall of the wafer carrier cavity close to the material input end and the photoelectric sensor is 1 / 3, 2 / 3 or 3 / 4 of the length of the wafer carrier cavity in the direction of cell conveying at the material input end.

3. The material box detection device according to claim 1, characterized in that: When the material box is fully loaded, the light beam emitted by the photoelectric sensor passes through the material box or is blocked by the battery cell in the wafer carrier cavity.

4. The material box detection device according to claim 1 or 2, characterized in that: The projection of the bottom of the slide chamber on the horizontal plane is a rectangle.

5. The material box detection device according to claim 1, characterized in that: The light beam emitted by the photoelectric sensor is parallel to the bottom of the slide chamber.

6. The material box detection device according to claim 1, characterized in that: The photoelectric sensor is arranged on a bracket, the photoelectric sensor is slidably connected to the bracket via a slider, and the photoelectric sensor can slide along the bracket in a vertical direction.

7. The material box detection device according to claim 1, characterized in that: The photoelectric sensor is connected to the bracket through an adapter. The adapter includes a fixing member and a rotating head. The fixing member is connected to the bracket, and the rotating head is connected to the photoelectric sensor. The rotating head can rotate relative to the fixing member.

8. The material box detection device according to claim 1, characterized in that: It also includes a battery cell loading and conveying line, which is used to convey the battery cells to the incoming end of the carrier platform.

9. The material box detection device according to claim 1, characterized in that: It also includes a material box transfer conveyor line, which is used to drive the material box to move.

10. The material box detection device according to claim 1, characterized in that: It also includes an alarm, and the photoelectric sensor is electrically connected to the alarm.

Images