Material box reversing mechanism and material box transfer device

Abstract

The utility model discloses a material box reversing mechanism and a material box transfer device.The material box reversing mechanism comprises a first conveying assembly and a second conveying assembly, the first conveying assembly comprises a first conveying frame, a first driving part and a first conveying belt, and the first driving part is configured to drive the first conveying belt to rotate in the forward direction and / or in the reverse direction; the second conveying assembly comprises a second conveying frame, a second driving part and a second conveying belt, and the second driving part is configured to drive the second conveying belt to rotate in the forward direction and / or the reverse direction; the first conveying belt and the second conveying belt are configured to convey material boxes together, reversing positions are arranged on conveying paths of the first conveying belt and the second conveying belt, and when the material boxes flow through the reversing positions, the first conveying belt and the second conveying belt are configured to rotate in opposite directions so as to drive the material boxes to reverse. The material box reversing mechanism basically does not generate vibration in the material box reversing process, the probability that silicon wafers or battery pieces in the material box are damaged due to vibration is reduced, and the yield of products is improved.

Description

Technical Field

[0001] This application relates to the field of battery cell production equipment manufacturing, and in particular to a material box reversing mechanism and a material box transfer device. Background Technology

[0002] In the production of solar cells, material boxes need to be transferred between different processes to store silicon wafers or solar cells. However, during the transfer of material boxes, they need to be reversed. Existing methods typically involve setting up a reversing mechanism between two conveyor belts. The reversing mechanism includes a drive assembly and a support component. The drive end of the drive assembly is connected to the support component, and the drive assembly is used to drive the support component to lift, lower, and rotate. The two conveyor belts are used to transport the material boxes. During reversal, the drive assembly first drives the support component to rise, pushing the material box away from the conveying surfaces of the two conveyor belts. Then, the drive assembly drives the support component to rotate by a preset angle, thereby reversing the direction of the material box on the support component. Finally, the drive assembly drives the support component to descend, so that the reversed material box on the support component rests on the conveying surfaces of the two conveyor belts.

[0003] Obviously, the existing material box reversing mechanism needs to drive the material box to rise and fall relative to the two conveyor belts when reversing the material box. When the material box comes into contact with the conveyor belt, it will vibrate. The silicon wafers or cell sheets inside the material box are relatively brittle and thin, and the vibration of the material box can easily damage the silicon wafers or cell sheets inside the material box. Utility Model Content

[0004] The purpose of this application is to provide a material box reversing mechanism to solve the problem that existing material box reversing mechanisms are prone to damaging silicon wafers or cell cells inside the material box. Another purpose of this application is to provide a material box transfer device including the material box reversing mechanism.

[0005] To achieve this objective, the following technical solution is adopted in this application:

[0006] In a first aspect, this application proposes a hopper reversing mechanism, which includes a first conveying component and a second conveying component, wherein:

[0007] The first conveying assembly includes a first conveyor frame, a first drive member, and a first conveyor belt, the first conveyor belt being rotatably mounted on the first conveyor frame, and the first drive member being configured to drive the first conveyor belt to rotate in the forward direction;

[0008] The second conveying assembly includes a second conveyor frame, a second drive member, and a second conveyor belt, the second conveyor belt being rotatably mounted on the second conveyor frame, and the second drive member being configured to drive the second conveyor belt to rotate in the forward direction;

[0009] The first drive member is also configured to drive the first conveyor belt to rotate in the reverse direction, and / or the second drive member is also configured to drive the second conveyor belt to rotate in the reverse direction.

[0010] The first conveyor belt and the second conveyor belt are arranged in parallel and spaced apart. The first conveyor belt and the second conveyor belt are configured to jointly transport the material box. A reversing position is provided on the conveying path of the first conveyor belt and the second conveyor belt. When the material box flows through the reversing position, the first conveyor belt and the second conveyor belt are configured to rotate in opposite directions to drive the material box to change direction.

[0011] The material box reversing mechanism proposed in this application controls the rotation direction of the first and second conveyor belts at the reversing position, so that the conveying directions of the first and second conveyor belts are opposite, thereby reversing the material boxes carried by the first and second conveyor belts at the reversing position. Compared with the existing material box reversing mechanism, the material box does not need to be raised or lowered during the reversing process, and there is basically no vibration during the material box reversing process, which reduces the probability of damage to silicon wafers or cell cells inside the material box due to vibration and improves the product yield.

[0012] Optionally, a limit assembly is provided between the first and second conveyor belts at the reversing position. The limit assembly includes a third drive component and a limit component, and a limit hole is provided at the bottom of the material box.

[0013] The driving end of the third driving component is connected to the limiting component. The third driving component is configured to drive the limiting component to rise and fall. The limiting component corresponds to the limiting hole.

[0014] The third driving component drives the limiting component to rise to the first position, so that the limiting component is inserted into the limiting hole, and the material box rotates around the limiting component during the reversing process;

[0015] The third driving component drives the limiting component to descend to the second position, causing the limiting component to leave the limiting hole and the limiting component to be lower than the conveying surfaces of the first and second conveyor belts at the reversing position.

[0016] With the cooperation of the third driving component and the limiting component, the limiting component is inserted into the limiting hole at the bottom of the material box before the material box is switched, so that the material box rotates around the limiting component during the switching process, thus preventing the material box from deviating during the switching process.

[0017] Optionally, a first conveying position, a reversing position, and a second conveying position are sequentially arranged on the conveying path of the first conveyor belt and the second conveyor belt, and the conveying surface of the first conveyor belt and the second conveyor belt corresponding to the reversing position is higher than the conveying surface of the first conveyor belt and the second conveyor belt corresponding to the first conveying position and the second conveying position.

[0018] By sequentially setting a first conveying position, a reversing position, and a second conveying position on the conveying paths of the first and second conveyor belts, the automatic feeding of the hopper into the reversing position and the automatic output of the hopper after reversal are realized. At the same time, the height of the conveying surface of the conveyor belt at the reversing position is higher than the height of the conveying surface of the conveyor belt at the first and second conveying positions, so that the hopper will not rub against the first and second conveyor belts at the first and second conveying positions when reversing, which facilitates the reversal of the hopper.

[0019] Optionally, the first conveying assembly further includes a first drive wheel and a plurality of first guide wheels, the first drive wheel and the plurality of first guide wheels being rotatably mounted on the first conveyor frame, the first conveyor belt being fitted onto the first drive wheel and the plurality of first guide wheels, the drive end of the first drive member being connected to the first drive wheel, and the first drive member being configured to drive the first drive wheel to rotate so as to drive the first conveyor belt to rotate;

[0020] The second conveying assembly also includes a second drive wheel and a plurality of second guide wheels, which are rotatably mounted on the second conveyor frame. The second conveyor belt is fitted onto the second drive wheel and the plurality of second guide wheels. The drive end of the second drive member is connected to the second drive wheel, and the second drive member is configured to drive the second drive wheel to rotate, thereby driving the second conveyor belt to rotate.

[0021] By setting a first driving wheel, multiple first guide wheels, a second driving wheel, and multiple second guide wheels, a driving method is provided that uses a driving wheel in conjunction with multiple guide wheels to drive the corresponding conveyor belt to rotate. This provides a first conveying assembly and a second conveying assembly that are simple in structure, occupy little space, have high safety, and are easy to maintain.

[0022] Optionally, the first conveyor belt at the reversing position wraps around the first drive wheel and several first guide wheels vertically, and the second conveyor belt at the reversing position wraps around the second drive wheel and several second guide wheels vertically, so that the first conveyor belt and the second conveyor belt at the reversing position both form several coplanar conveying surfaces spaced apart along the conveying direction.

[0023] By setting both the first and second conveyor belts at the reversing position to wrap around the corresponding drive wheel and several guide wheels vertically, several coplanar conveying surfaces are formed at intervals on the first and second conveyor belts at the reversing position. This reduces the contact area between the material box and the conveyor belt at the reversing position, thereby reducing the friction between the material box and the conveyor belt at the reversing position. This allows the material box at the reversing position to overcome less friction to change the direction of linear motion, making it easier for the material box to change direction.

[0024] Optionally, the radius of the first driving wheel is greater than the radius of the first guide wheel, and the radius of the second driving wheel is greater than the radius of the second guide wheel.

[0025] By setting the radius of the first drive wheel to be greater than the radius of the first guide wheel and the radius of the second drive wheel to be greater than the radius of the second guide wheel, the area of ​​the conveyor surface of the conveyor belt that bypasses the first drive wheel and the second drive wheel at the reversing position is greater than the area of ​​the conveyor surface that bypasses the corresponding guide wheel. This results in a larger friction force being generated in the material box at the positions of the first drive wheel and the second drive wheel, which facilitates the reversing of the material box.

[0026] Optionally, the material box reversing mechanism further includes at least two first support members and at least two second support members, wherein the first support members are disposed on the second conveyor frame and the second support members are disposed on the first conveyor frame;

[0027] Both the first conveying position and the second conveying position are provided with at least one first support member. The upper surface of the first support member is provided with an elongated guide groove, and the length direction of the guide groove is parallel to the conveying direction of the first conveyor belt. The two ends of the guide groove are open. The first conveyor belt is attached to the guide groove. The first support member is configured to support and guide the first conveyor belt.

[0028] Both the first and second conveying positions are provided with at least one second support member. The second support member has the same structure as the first support member and is configured to support and guide the second conveyor belt.

[0029] By providing at least one first support member at both the first and second conveying positions of the first conveyor belt, the first conveyor belt is supported and guided, thereby improving the stability and directional consistency of its rotation. Similarly, by providing at least one second support member at both the first and second conveying positions of the second conveyor belt, the second conveyor belt is supported and guided, thereby improving its stability and directional consistency of rotation.

[0030] Secondly, this application also proposes a material box transfer device, which includes a main conveyor line, at least one side distribution mechanism, two material box loading and unloading mechanisms, and at least one of the aforementioned material box reversing mechanisms, wherein:

[0031] The main conveyor line is configured to convey sheet bodies along the first direction. At least one unloading station is set on the conveying path of the main conveyor line. Each unloading station is equipped with a side splitting mechanism. The conveying path of the side splitting mechanism is perpendicular to the first direction and extends to the first and second sides of the main conveyor line. Several receiving stations are set on the first and second sides of the main conveyor line at each unloading station. Each receiving station is equipped with a material box. The material boxes on the first and second sides of the main conveyor line have different postures.

[0032] Two material box loading and unloading mechanisms are respectively set on the first side and the second side of the main conveyor line. The material box loading and unloading mechanism on the first side is configured to unload the full material box at the receiving position on the first side of the main conveyor line, and the material box loading and unloading mechanism on the second side is configured to unload the full material box at the receiving position on the second side of the main conveyor line.

[0033] The material box reversing mechanism is configured to dock with the material box loading and unloading mechanisms on the first and second sides to receive full material boxes conveyed by the two material box loading and unloading mechanisms and adjust the posture of the received full material boxes to the same orientation for rearward conveying.

[0034] The material box transfer device proposed in this application, through the cooperation of a main conveyor line, at least one side distribution mechanism, two material box loading and unloading mechanisms, and at least one of the aforementioned material box reversing mechanisms, achieves the automatic collection of wafers conveyed on the main conveyor line into material boxes on the first and second sides of the main conveyor line, as well as the unloading of full material boxes on the first and second sides of the main conveyor line, resulting in high unloading efficiency. Moreover, the material box reversing mechanism can adjust the posture of full material boxes on the first and second sides of the main conveyor line to the same orientation before conveying them. During the reversing process, the material box does not need to be raised or lowered, and there is virtually no vibration during the material box reversing process, reducing the probability of damage to silicon wafers or solar cells inside the material box due to vibration and improving the product yield.

[0035] Optionally, the material box transfer device includes two parallel material box reversing mechanisms. One material box reversing mechanism is configured to dock with the material box loading / unloading mechanism located on the first side, and the other material box reversing mechanism is configured to dock with the material box loading / unloading mechanism located on the second side. The two material box reversing mechanisms are configured to receive full material boxes conveyed by the material box loading / unloading mechanisms on the first and second sides and adjust the posture of the received full material boxes to the same orientation before conveying them backward.

[0036] By connecting the two material box reversing mechanisms with the material box loading and unloading mechanisms on both sides of the main conveyor line, the full material boxes from the material box loading and unloading mechanisms on both sides of the main conveyor line are received synchronously, and the attitude of the received full material boxes is adjusted to the same direction before being conveyed, thus improving the transfer efficiency of full material boxes.

[0037] Optionally, the material box transfer device further includes a first material box buffer line and a second material box buffer line arranged vertically at intervals. Both material box reversing mechanisms can be raised, lowered, and moved laterally to connect with the first and second material box buffer lines, wherein:

[0038] The first cassette buffer line is configured to interface with two cassette reversing mechanisms to receive and buffer full cassettes delivered by the two cassette reversing mechanisms;

[0039] The second hopper buffer line is configured to interface with two hopper reversing mechanisms to transport the buffered empty hoppers to the two hopper reversing mechanisms.

[0040] By setting up a first material box buffer line, full material boxes are received from two material box reversing mechanisms and transported to the next process. By setting up a second material box buffer line, empty material boxes are buffered and transported to two material box reversing mechanisms, thus conveying empty and full material boxes in layers, which greatly facilitates the conveying of empty and full material boxes and improves conveying efficiency. At the same time, the first and second material box buffer lines are arranged vertically, which is a reasonable layout. Attached Figure Description

[0041] Figure 1This is a three-dimensional structural schematic diagram of the material box reversing mechanism provided in the embodiments of this application;

[0042] Figure 2 This is a three-dimensional structural schematic diagram of the material box transfer device provided in the embodiments of this application;

[0043] Figure 3 This is an assembly diagram of the two reversing mechanisms of the material box transfer device provided in the embodiments of this application;

[0044] Figure 4 This is a three-dimensional structural diagram of the material box provided in the embodiment of this application.

[0045] Figures 1 to 4 The following reference numerals are included:

[0046] Material box reversing mechanism 10: First conveying assembly 11, first conveying frame 110, first driving component 111, first conveyor belt 112, first drive wheel 113, first guide wheel 114, second conveying assembly 12, second conveying frame 120, second driving component 121, second conveyor belt 122, second drive wheel 123, second guide wheel 124, reversing position 13, first conveying position 14, second conveying position 15, third driving component 16, first support component 17, guide groove 170, second support component 18;

[0047] Material box 20, base plate 21, baffle strip 22;

[0048] Main conveyor line 30, side distribution mechanism 31, material box loading and unloading mechanism 32, first material box buffer line 33, second material box buffer line 34;

[0049] 40. Scissor lift, 41. Lifting platform, 42. Linear module, 43. Linear guide rail. Detailed Implementation

[0050] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, this application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0051] In the production of solar cells, material boxes need to be transferred between different processes to store silicon wafers or solar cells. However, during the transfer of material boxes, they need to be reversed. Existing methods typically involve setting up a reversing mechanism between two conveyor belts. The reversing mechanism includes a drive assembly and a support component. The drive end of the drive assembly is connected to the support component, and the drive assembly is used to drive the support component to lift, lower, and rotate. The two conveyor belts are used to transport the material boxes. During reversal, the drive assembly first drives the support component to rise, pushing the material box away from the conveying surfaces of the two conveyor belts. Then, the drive assembly drives the support component to rotate by a preset angle, thereby reversing the direction of the material box on the support component. Finally, the drive assembly drives the support component to descend, so that the reversed material box on the support component rests on the conveying surfaces of the two conveyor belts.

[0052] Obviously, the existing material box reversing mechanism needs to drive the material box to rise and fall relative to the two conveyor belts when reversing the material box. When the material box comes into contact with the conveyor belt, it will vibrate. The silicon wafers or cell sheets inside the material box are relatively brittle and thin, and the vibration of the material box can easily damage the silicon wafers or cell sheets inside the material box.

[0053] Therefore, in the first aspect, this application proposes a material box reversing mechanism 10, please refer to... Figure 1 and Figure 4 As shown, the hopper reversing mechanism 10 disclosed in this application includes a first conveying assembly 11 and a second conveying assembly 12. The first conveying assembly 11 includes a first conveying frame 110, a first driving member 111, and a first conveyor belt 112. The first conveyor belt 112 is rotatably mounted on the first conveying frame 110, and the first driving member 111 is configured to drive the first conveyor belt 112 to rotate in the forward direction. The second conveying assembly 12 includes a second conveying frame 120, a second driving member 121, and a second conveyor belt 122. The second conveyor belt 122 is rotatably mounted on the second conveying frame 120, and the second driving member 121 is configured to drive the second conveyor belt 122 to rotate in the forward direction. The conveyor belt 122 rotates in the forward direction; the first drive member 111 is also configured to drive the first conveyor belt 112 to rotate in the reverse direction, and / or, the second drive member 121 is also configured to drive the second conveyor belt 122 to rotate in the reverse direction; the first conveyor belt 112 and the second conveyor belt 122 are arranged in parallel and spaced apart, the first conveyor belt 112 and the second conveyor belt 122 are configured to jointly convey the material box 20, and a reversing position 13 is provided on the conveying path of the first conveyor belt 112 and the second conveyor belt 122. When the material box 20 flows through the reversing position 13, the first conveyor belt 112 and the second conveyor belt 122 are configured to rotate in opposite directions to drive the material box 20 to reverse direction.

[0054] As can be seen, when the material box 20 is at the reversing position 13 of the first conveyor belt 112 and the second conveyor belt 122, the rotation direction of the first conveyor belt 112 and the second conveyor belt 122 is controlled by the first driving member 111 and the second driving member 121, so that the conveying directions of the first conveyor belt 112 and the second conveyor belt 122 are opposite, thereby driving the material box 20 to rotate, and thus reversing the material box 20 carried by the first conveyor belt 112 and the second conveyor belt 122 at the reversing position 13. Compared with the existing material box reversing mechanism, the material box 20 does not need to be raised or lowered during the reversing process, and the material box 20 basically does not vibrate during the reversing process, which reduces the probability of damage to the silicon wafers or cells inside the material box 20 due to vibration and improves the product yield.

[0055] In one embodiment, a limiting component is provided between the first conveyor belt 112 and the second conveyor belt 122 on the reversing position 13. The limiting component includes a third drive member 16 and a limiting member (not shown in the figure). A limiting hole is opened at the bottom of the material box 20. The driving end of the third drive member 16 is connected to the limiting member. The third drive member 16 is configured to drive the limiting member to rise and fall. The limiting member corresponds to the limiting hole. The third drive member 16 drives the limiting member to rise to the first position, so that the limiting member is inserted into the limiting hole. The material box 20 rotates around the limiting member during the reversing process. The third drive member 16 drives the limiting member to fall to the second position, so that the limiting member leaves the limiting hole and the limiting member is lower than the conveying surface of the first conveyor belt 112 and the second conveyor belt 122 at the reversing position 13.

[0056] In one embodiment, the third driving component 16 is a cylinder or electric cylinder, fixed between the first conveyor belt 112 and the second conveyor belt 122, with the piston rod of the cylinder or electric cylinder vertically upward. The limiting component is a limiting pin, which is installed at the top of the piston rod of the cylinder or electric cylinder. The cylinder or electric cylinder can drive the limiting pin to move upward and insert it into the limiting hole of the material box 20. The material box 20 rotates around the limiting pin during the reversing process. In another embodiment, the limiting component is a cylinder or electric cylinder, the third driving component 16 is the driving part of the cylinder or electric cylinder, and the limiting component is the piston rod of the cylinder or electric cylinder. That is, before the reversing process, the end of the piston rod is directly inserted into the limiting hole of the material box 20 so that the material box 20 rotates around the piston rod during the reversing process.

[0057] As can be seen, through the cooperation of the third driving component 16 and the limiting component, the limiting component is inserted into the limiting hole at the bottom of the material box 20 before the material box 20 is reversed. Then, the first conveyor belt 112 and the second conveyor belt 122 are controlled to rotate in opposite directions, so that the material box 20 rotates around the limiting component during the reversal process, thus preventing the material box 20 from deviating during the reversal process.

[0058] In one embodiment, a first conveying position 14, a reversing position 13, and a second conveying position 15 are sequentially arranged on the conveying path of the first conveyor belt 112 and the second conveyor belt 122. The conveying surfaces of the first conveyor belt 112 and the second conveyor belt 122 corresponding to the reversing position 13 are higher than the conveying surfaces of the first conveyor belt 112 and the second conveyor belt 122 corresponding to the first conveying position 14 and the second conveying position 15.

[0059] The material box 20 can be input from the end of the first conveying position 14, move to the reversing position 13 for reversal, and then move along the second conveying position 15 before being output. Alternatively, the material box 20 can be input from the end of the second conveying position 15, move to the reversing position 13 for reversal, and then move along the first conveying position 14 before being output. That is, the material box 20 can be input from either end of the material box reversing mechanism according to actual needs. As can be seen, by sequentially setting the first conveying position 14, the reversing position 13, and the second conveying position 15 on the conveying paths of the first conveyor belt 112 and the second conveyor belt 122, the material box 20 is automatically fed into the reversing position 13 and automatically output after reversal. At the same time, the height of the conveying surface of the conveyor belt at the reversing position 13 is higher than the height of the conveying surface of the conveyor belt at the first conveying position 14 and the second conveying position 15, so that the material box 20 will not rub against the first conveyor belt 112 and the second conveyor belt 122 on the first conveying position 14 and the second conveying position 15 when reversing, which facilitates the reversal of the material box 20 and reduces the wear on the material box 20.

[0060] Please see Figure 1 As shown, in one embodiment, the first conveying assembly 11 further includes a first drive wheel 113 and a plurality of first guide wheels 114. The first drive wheel 113 and the plurality of first guide wheels 114 are rotatably mounted on the first conveyor frame 110. The first conveyor belt 112 is fitted onto the first drive wheel 113 and the plurality of first guide wheels 114. The drive end of the first drive member 111 is connected to the first drive wheel 113. The first drive member 111 is configured to drive the first drive wheel 113 to rotate, thereby driving the first conveyor belt 112 to rotate. The second conveying assembly 12 further includes a second drive wheel 123 and a plurality of second guide wheels 124. The second drive wheel 123 and the plurality of second guide wheels 124 are rotatably mounted on the second conveyor frame 120. The second conveyor belt 122 is fitted onto the second drive wheel 123 and the plurality of second guide wheels 124. The drive end of the second drive member 121 is connected to the second drive wheel 123. The second drive member 121 is configured to drive the second drive wheel 123 to rotate, thereby driving the second conveyor belt 122 to rotate.

[0061] Specifically, both the first drive component 111 and the second drive component 121 are electric motors. The motors can rotate forward or backward to drive the corresponding first conveyor belt 112 or second conveyor belt 122 to rotate forward or backward.

[0062] As can be seen, by setting the first drive wheel 113, multiple first guide wheels 114, the second drive wheel 123 and multiple second guide wheels 124, a driving method is provided that uses the drive wheel in conjunction with multiple guide wheels to drive the corresponding conveyor belt to rotate, and a first conveyor assembly 11 and a second conveyor assembly 12 with simple structure, small space occupation, high safety and convenient maintenance are provided.

[0063] Please see Figure 1 and Figure 2 As shown, in one embodiment, the first conveyor belt 112 at the reversing position 13 wraps around the first drive wheel 113 and several first guide wheels 114, and the second conveyor belt 122 at the reversing position 13 wraps around the second drive wheel 123 and several second guide wheels 124, so that the first conveyor belt 112 and the second conveyor belt 122 at the reversing position 13 both form several coplanar conveying surfaces spaced apart along the conveying direction.

[0064] As can be seen, by setting both the first conveyor belt 112 and the second conveyor belt 122 at the reversing position 13 to wrap around the corresponding drive wheel and several guide wheels, the first conveyor belt 112 and the second conveyor belt 122 at the reversing position 13 form several coplanar conveying surfaces that are spaced apart. This reduces the contact area between the material box 20 and the conveyor belt at the reversing position 13, thereby reducing the friction between the material box 20 and the conveyor belt at the reversing position 13. This allows the material box 20 at the reversing position 13 to overcome less friction to change the direction of linear motion, making it easier for the material box 20 to change direction.

[0065] In one implementation, the radius of the first drive wheel 113 is greater than the radius of the first guide wheel 114, and the radius of the second drive wheel 123 is greater than the radius of the second guide wheel 124.

[0066] As can be seen, by setting the radius of the first drive wheel 113 to be greater than the radius of the first guide wheel 114 and the radius of the second drive wheel 123 to be greater than the radius of the second guide wheel 124, the area of ​​the conveying surface of the conveyor belt that passes around the first drive wheel 113 and the second drive wheel 123 on the reversing position 13 is greater than the area of ​​the conveying surface that passes around the corresponding guide wheel. This causes the material box 20 to generate a large frictional force at the positions of the first drive wheel 113 and the second drive wheel 123, which facilitates the reversing of the material box 20.

[0067] In one embodiment, the material box reversing mechanism 10 further includes at least two first support members 17 and at least two second support members 18. The first support members 17 are disposed on the second conveyor frame 120, and the second support members 18 are disposed on the first conveyor frame 110. At least one first support member 17 is disposed on both the first conveying position 14 and the second conveying position 15. An elongated guide groove 170 is disposed on the upper surface of the first support member 17, and the length direction of the guide groove 170 is parallel to the conveying direction of the first conveyor belt 112. The two ends of the guide groove 170 are open, and the first conveyor belt 112 is attached to the guide groove 170. The first support member 17 is configured to support and guide the first conveyor belt 112. At least one second support member 18 is disposed on both the first conveying position 14 and the second conveying position 15. The second support member 18 has the same structure as the first support member 17, and the second support member 18 is configured to support and guide the second conveyor belt 122.

[0068] Specifically, the first conveyor frame 110 and the second conveyor frame 120 can be two separate frames or they can be integrated into one frame.

[0069] As can be seen, by providing at least one first support member 17 on both the first conveying position 14 and the second conveying position 15 of the first conveyor belt 112, the support and guidance of the first conveyor belt 112 are achieved, thereby improving the stability and directional consistency of the rotation of the first conveyor belt 112; by providing at least one second support member 18 on both the first conveying position 14 and the second conveying position 15 of the second conveyor belt 122, the support and guidance of the second conveyor belt 122 are achieved, thereby improving the stability and directional consistency of the rotation of the second conveyor belt 122.

[0070] One working process of the hopper reversing mechanism 10 proposed in this application embodiment is as follows:

[0071] S1, the first driving member 111 and the second driving member 121 respectively drive the first conveyor belt 112 and the second conveyor belt 122 to rotate synchronously in the forward direction, and transport the material box 20 carried by the first conveyor belt 112 and the second conveyor belt 122 to the reversing position 13 and then stop.

[0072] S2, the third driving component 16 drives the limiting component to rise to the first position, so that the limiting component is inserted into the limiting hole of the material box 20;

[0073] S3, the first driving member 111 drives the first conveyor belt 112 to rotate in the forward direction while the second driving member 121 drives the second conveyor belt 122 to rotate in the reverse direction, or the first driving member 111 drives the first conveyor belt 112 to rotate in the reverse direction while the second driving member 121 drives the second conveyor belt 122 to rotate in the forward direction, so as to drive the material box 20 on the reversing position 13 to rotate in place around the limiting member.

[0074] S4, after the material box 20 on the reversing position 13 rotates to the target angle, the first drive member 111 and the second drive member 121 respectively control the first conveyor belt 112 and the second conveyor belt 122 to stop, and the third drive member 16 drives the limiting member to descend to the second position, so that the limiting member is away from the limiting hole of the material box 20. The first drive member 111 and the second drive member 121 then drive the first conveyor belt 112 and the second conveyor belt 122 to rotate synchronously in the forward direction, so as to output the reversing material box 20.

[0075] The hopper reversing mechanism 10 proposed in this application has the following advantages:

[0076] 1) The material box 20 does not need to be raised or lowered during the reversal process. The material box 20 will not vibrate during the reversal process, which reduces the probability of damage to the silicon wafers or cells inside the material box 20 due to vibration and improves the product yield.

[0077] 2) A limit component is provided on the reversing position 13 to prevent the material box 20 from deviating during the reversing process, thereby improving the reversing accuracy of the material box 20.

[0078] 3) By setting the intermittent conveying surfaces of the first conveyor belt 112 and the second conveyor belt 122 at the reversing position 13, it is easy to reverse the direction of the material box 20 at the reversing position 13.

[0079] 4) The first support member 17 and the second support member 18 support and guide the first conveyor belt 112 and the second conveyor belt 122 respectively, which improves the stability and directional consistency of the rotation of the first conveyor belt 112 and the second conveyor belt 122, and avoids the first conveyor belt 112 and the second conveyor belt 122 from jumping and deviating during the conveying process.

[0080] Secondly, this application also proposes a material box transfer device, please refer to [link to relevant documentation]. Figure 2 and Figure 3 As shown, the material box transfer device proposed in this application embodiment includes a main conveyor line 30, at least one side distribution mechanism 31, two material box loading and unloading mechanisms 32, and at least one of the aforementioned material box reversing mechanisms 10. The main conveyor line 30 is configured along a first direction ( Figure 2 The main conveyor line 30 (X-direction) transports sheet bodies. At least one unloading station is provided along its conveying path. Each unloading station is equipped with a side-splitting mechanism 31. The conveying path of the side-splitting mechanism 31 is perpendicular to the first direction and extends to the first and second sides of the main conveyor line 30. Several receiving stations are provided on the first and second sides of the main conveyor line 30 at each unloading station. Each receiving station is equipped with a material box 20. The material boxes 20 on the first and second sides of the main conveyor line 30 have different orientations. Two material box unloading mechanisms 32 are respectively provided... On the first and second sides of the main conveyor line 30, the hopper loading / unloading mechanism 32 on the first side is configured to unload full hoppers at the receiving position on the first side of the main conveyor line 30, and the hopper loading / unloading mechanism 32 on the second side is configured to unload full hoppers at the receiving position on the second side of the main conveyor line 30; the hopper reversing mechanism 10 is configured to dock with the hopper loading / unloading mechanism 32 on the first and second sides to receive full hoppers conveyed by the two hopper loading / unloading mechanisms 32 and adjust the posture of the received full hoppers to the same orientation for rear conveying.

[0081] Specifically, the structure of the material box 20 is as follows: Figure 4As shown. When the material box 20 carries silicon wafers or cell wafers, in order to ensure that the wafers are stacked neatly in the material box 20, the bottom plate 21 inside the material box 20 is usually arranged inclined downwards towards the first corner. The bottom plate 21 is used to support the wafers, and baffles 22 are arranged on the adjacent two sides of the bottom plate 21. When the wafers are arranged in the material box 20, the adjacent two sides of the wafers abut against the baffles 22 on the two sides of the bottom plate. The side-separation mechanism 31 can adopt an existing upper adsorption conveyor line, that is, the upper adsorption conveyor line can pick up the sheets on the main conveyor line 30 and convey them in opposite directions toward the first and second sides of the main conveyor line 30. After being conveyed to the correct position, the sheets are released into the material box 20. In order to ensure that the sheets conveyed from the first and second sides can smoothly enter the corresponding material box 20 and neatly abut against the baffle 22, the orientation of the first corner of the first side material box 20 and the orientation of the first corner of the second side material box 20 will be different, that is, the posture of the material box 20 is different. For example, the first side material box 20 and the second side material box 20 will be symmetrically arranged with the main conveyor line 30 as the center line, or other positional relationships. In this application, the material box reversing mechanism 10 can adjust the posture of the received full material box to be the same before conveying it.

[0082] As can be seen, the material box transfer device proposed in this application, through the cooperation of the main conveyor line 30, at least one side distribution mechanism 31, two material box loading and unloading mechanisms 32, and at least one of the aforementioned material box reversing mechanisms 10, realizes the automatic collection of wafers conveyed on the main conveyor line 30 into the material boxes 20 on the first and second sides of the main conveyor line 30, and the unloading of full material boxes on the first and second sides of the main conveyor line 30, with high unloading efficiency; moreover, the material box reversing mechanism 10 can adjust the posture of the full material boxes on the first and second sides of the main conveyor line 30 to the same orientation before conveying them. During the reversing process, the material box 20 does not need to be raised or lowered, and the material box 20 basically does not vibrate during the reversing process, reducing the probability of silicon wafers or cells in the material box 20 being damaged by vibration, and improving the product yield.

[0083] In one embodiment, the material box transfer device includes two parallel material box reversing mechanisms 10. One material box reversing mechanism 10 is configured to dock with the material box loading / unloading mechanism 32 located on the first side, and the other material box reversing mechanism 10 is configured to dock with the material box loading / unloading mechanism 32 located on the second side. The two material box reversing mechanisms 32 are configured to receive full material boxes conveyed by the material box loading / unloading mechanisms 32 on the first and second sides and adjust the posture of the received full material boxes to the same orientation before conveying them backward.

[0084] It can be seen that by connecting the two material box reversing mechanisms 10 with the material box loading and unloading mechanisms 32 on both sides of the main conveyor line 30, the full material boxes on both sides of the main conveyor line 30 are received synchronously and the attitude of the received full material boxes is adjusted to the same orientation before being conveyed, thereby improving the transfer efficiency of the full material boxes.

[0085] In one embodiment, the material box transfer device further includes a first material box buffer line 33 and a second material box buffer line 34 arranged vertically at intervals. Both material box reversing mechanisms 10 can be raised, lowered, and moved laterally to connect with the first material box buffer line 33 and the second material box buffer line 34. The first material box buffer line 33 is configured to connect with the two material box reversing mechanisms 10 to receive and buffer full material boxes conveyed by the two material box reversing mechanisms 10. The second material box buffer line 34 is configured to connect with the two material box reversing mechanisms 10 to convey buffered empty material boxes to the two material box reversing mechanisms 10.

[0086] Specifically, two box reversing mechanisms 10 are simultaneously and side-by-side mounted on the lifting platform 41 of the scissor lift 40 to achieve the lifting and lowering of the two box reversing mechanisms 10. A linear module 42 and two parallel linear guide rails 43 can be installed on the lifting platform 41 of the scissor lift 40, so that the linear module 42 drives the two box reversing mechanisms 10 to move laterally along the two linear guide rails 42 simultaneously. Alternatively, two linear modules 42 and at least two parallel linear guide rails 43 can be installed on the lifting platform 41 of the scissor lift 40, so that the two linear modules 42 respectively drive the two box reversing mechanisms 10 to move laterally along their respective linear guide rails 43. The first box buffer line 33 and the second box buffer line 34 each include multiple rows of box conveyor lines. The lateral movement of the two box reversing mechanisms 10 can be controlled by the linear module 42, so that the two box reversing mechanisms 10 can connect to different box conveyor lines. The first material box buffer line 33 and the second material box buffer line 34 are arranged at intervals along the height direction. The lifting and lowering of the two material box reversing mechanisms 10 can be controlled by the scissor lift 40 to connect the first material box buffer line 33 and the second material box buffer line 34 at different heights.

[0087] Of course, the driving component that drives the two material box reversing mechanisms 10 to move laterally can also be a cylinder.

[0088] As can be seen, by setting the first material box buffer line 33, the system receives full material boxes from the two material box reversing mechanisms 10 and transports them to the next process. By setting the second material box buffer line 34, the system buffers empty material boxes and transports them to the two material box reversing mechanisms 10, thus transporting empty and full material boxes in layers, which greatly facilitates the transport of empty and full material boxes and improves the transport efficiency. At the same time, the first material box buffer line 33 and the second material box buffer line 34 are arranged vertically, which is a reasonable layout.

[0089] In one implementation, the empty boxes buffered by the second box buffer line 34 have the same orientation. One or both box reversing mechanisms 10 simultaneously adjust the orientation of each received box 20 to meet the orientation requirements of the first and second sides of the main conveyor line 30 for the box 20.

[0090] One working process of the two box reversing mechanisms 10 of the box transfer device proposed in this application embodiment to reverse the flow of full and empty boxes is as follows:

[0091] After the two material box reversing mechanisms 10 receive the full boxes conveyed by the two material box loading and unloading mechanisms 32 respectively, one of the material box reversing mechanisms 10 directly conveys the received full box to the first material box buffer line 33, and the other material box reversing mechanism 10 reverses the received full box so that the full boxes conveyed by the two material box reversing mechanisms 10 have the same posture, and then conveys the adjusted full box to the first material box buffer line 33.

[0092] Two material box reversing mechanisms 10 respectively receive empty material boxes conveyed by the second material box buffer line 34. One of the material box reversing mechanisms 10 reverses the received empty material box so that the orientation of the empty material boxes on the two material box reversing mechanisms 10 meets the orientation requirements of the first and second sides of the main conveyor line 30 for the material box 20. Then the empty material box is conveyed to the corresponding material box loading and unloading mechanism 32.

[0093] In this application, the material box 20 can be suspended below the upper adsorption conveyor line, or the material box 20 can be placed on a material box placement rack below the upper adsorption conveyor line. The material box loading and unloading mechanism 32 can be a material box transport trolley, or a hook mechanism capable of horizontal movement and lifting, to hook the material box 20 and transfer it to the material box reversing mechanism 10.

[0094] The material box transfer device proposed in this application has the following advantages:

[0095] 1) It realizes the automatic collection of the sheet conveyed on the main conveyor line 30 into the material box 20 on the first and second sides of the main conveyor line 30, and the unloading of the full material box on the first and second sides of the main conveyor line 30, with high unloading efficiency.

[0096] 2) The material box reversing mechanism 10 can adjust the posture of the full material boxes on the first and second sides of the main conveyor line 30 to the same orientation before conveying them. During the reversing process, the material box 20 does not need to be raised or lowered. The material box 20 will not vibrate during the reversing process, which reduces the probability of damage to the silicon wafers or cells in the material box 20 due to vibration and improves the product yield.

[0097] 3) By connecting the two material box reversing mechanisms 10 with the material box loading and unloading mechanisms 32 on both sides of the main conveyor line 30 respectively, the full material boxes on both sides of the main conveyor line 30 are received synchronously and the attitude of the received full material boxes is adjusted to the same orientation before being conveyed, thereby improving the transfer efficiency of the full material boxes.

[0098] 4) Through the cooperation of two material box reversing mechanisms 10, the first material box buffer line 33 and the second material box buffer line 34, the efficient and rapid flow of empty and full material boxes is realized.

[0099] The above embodiments merely illustrate the basic principles and characteristics of this application. This application is not limited to the above examples. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A material box reversing mechanism, characterized in that, The material box reversing mechanism includes a first conveying component and a second conveying component, wherein: The first conveying assembly includes a first conveyor frame, a first drive member, and a first conveyor belt, wherein the first conveyor belt is rotatably mounted on the first conveyor frame, and the first drive member is configured to drive the first conveyor belt to rotate in the forward direction; The second conveying assembly includes a second conveyor frame, a second drive member, and a second conveyor belt, the second conveyor belt being rotatably mounted on the second conveyor frame, and the second drive member being configured to drive the second conveyor belt to rotate in the forward direction; The first drive member is further configured to drive the first conveyor belt to rotate in the reverse direction, and / or the second drive member is further configured to drive the second conveyor belt to rotate in the reverse direction; The first conveyor belt and the second conveyor belt are arranged in parallel and spaced apart. The first conveyor belt and the second conveyor belt are configured to jointly transport the material box. A reversing position is provided on the conveying path of the first conveyor belt and the second conveyor belt. When the material box flows through the reversing position, the first conveyor belt and the second conveyor belt are configured to rotate in opposite directions to drive the material box to change direction.

2. The material box reversing mechanism according to claim 1, characterized in that, A limit assembly is provided between the first conveyor belt and the second conveyor belt at the reversing position. The limit assembly includes a third driving member and a limiting member. A limiting hole is provided at the bottom of the material box. The driving end of the third driving member is connected to the limiting member, and the third driving member is configured to drive the limiting member to rise and fall. The limiting member corresponds to the limiting hole. The third driving member drives the limiting member to rise to the first position, so that the limiting member is inserted into the limiting hole, and the material box rotates around the limiting member during the reversing process; The third driving member drives the limiting member to descend to the second position, causing the limiting member to leave the limiting hole and the limiting member to be lower than the conveying surfaces of the first conveyor belt and the second conveyor belt at the reversing position.

3. The material box reversing mechanism according to claim 1, characterized in that, A first conveying position, a reversing position, and a second conveying position are sequentially arranged on the conveying path of the first conveyor belt and the second conveyor belt. The conveying surface of the first conveyor belt and the second conveyor belt corresponding to the reversing position is higher than the conveying surface of the first conveyor belt and the second conveyor belt corresponding to the first conveying position and the second conveying position.

4. The material box reversing mechanism according to claim 1, characterized in that, The first conveying assembly further includes a first drive wheel and a plurality of first guide wheels. The first drive wheel and the plurality of first guide wheels are rotatably mounted on the first conveying frame. The first conveyor belt is fitted onto the first drive wheel and the plurality of first guide wheels. The drive end of the first drive member is connected to the first drive wheel. The first drive member is configured to drive the first drive wheel to rotate, thereby driving the first conveyor belt to rotate. The second conveying assembly further includes a second drive wheel and a plurality of second guide wheels, the second drive wheel and the plurality of second guide wheels being rotatably mounted on the second conveying frame, the second conveyor belt being fitted onto the second drive wheel and the plurality of second guide wheels, the drive end of the second drive member being connected to the second drive wheel, and the second drive member being configured to drive the second drive wheel to rotate, thereby driving the second conveyor belt to rotate.

5. The material box reversing mechanism according to claim 4, characterized in that, The first conveyor belt at the reversing position wraps around the first drive wheel and several first guide wheels vertically, and the second conveyor belt at the reversing position wraps around the second drive wheel and several second guide wheels vertically, so that the first conveyor belt and the second conveyor belt at the reversing position both form several coplanar conveying surfaces spaced apart along the conveying direction.

6. The material box reversing mechanism according to claim 4, characterized in that, The radius of the first drive wheel is greater than the radius of the first guide wheel, and the radius of the second drive wheel is greater than the radius of the second guide wheel.

7. The material box reversing mechanism according to claim 3, characterized in that, The material box reversing mechanism further includes at least two first support members and at least two second support members, wherein the first support members are disposed on the second conveyor frame and the second support members are disposed on the first conveyor frame; Both the first conveying position and the second conveying position are provided with at least one first support member. The upper surface of the first support member is provided with an elongated guide groove, and the length direction of the guide groove is parallel to the conveying direction of the first conveyor belt. The two ends of the guide groove are open. The first conveyor belt is attached to the guide groove. The first support member is configured to support and guide the first conveyor belt. Both the first conveying position and the second conveying position are provided with at least one second support member. The second support member has the same structure as the first support member and is configured to support and guide the second conveyor belt.

8. A material box transfer device, characterized in that, The material box transfer device includes a main conveyor line, at least one side distribution mechanism, two material box loading and unloading mechanisms, and at least one material box reversing mechanism as described in any one of claims 1-7, wherein: The main conveyor line is configured to convey sheet bodies along a first direction. At least one unloading station is provided on the conveying path of the main conveyor line. Each unloading station is provided with a side-splitting mechanism. The conveying path of the side-splitting mechanism is perpendicular to the first direction and extends to the first and second sides of the main conveyor line. Several receiving stations are provided on the first and second sides of the main conveyor line at each unloading station. Each receiving station is provided with a material box. The material boxes on the first and second sides of the main conveyor line have different postures. The two material box loading and unloading mechanisms are respectively disposed on the first side and the second side of the main conveyor line. The material box loading and unloading mechanism located on the first side is configured to unload the full material box at the receiving position on the first side of the main conveyor line, and the material box loading and unloading mechanism located on the second side is configured to unload the full material box at the receiving position on the second side of the main conveyor line. The material box reversing mechanism is configured to dock with the material box loading and unloading mechanisms on the first side and the second side to receive full material boxes conveyed by the two material box loading and unloading mechanisms and adjust the posture of the received full material boxes to the same orientation for rearward conveying.

9. The material box transfer device according to claim 8, characterized in that, The material box transfer device includes two parallel material box reversing mechanisms. One of the material box reversing mechanisms is configured to dock with the material box loading / unloading mechanism located on the first side, and the other material box reversing mechanism is configured to dock with the material box loading / unloading mechanism located on the second side. The two material box reversing mechanisms are configured to receive full material boxes conveyed by the material box loading / unloading mechanisms on the first side and the second side, and adjust the posture of the received full material boxes to the same orientation before conveying them.

10. The material box transfer device according to claim 9, characterized in that, The material box transfer device further includes a first material box buffer line and a second material box buffer line arranged vertically at intervals. Both material box reversing mechanisms can be raised, lowered, and moved laterally to connect with the first material box buffer line and the second material box buffer line, wherein: The first cassette buffer line is configured to interface with the two cassette reversing mechanisms to receive and buffer full cassettes delivered by the two cassette reversing mechanisms; The second cassette buffer line is configured to interface with the two cassette reversing mechanisms to transport the buffered empty cassettes to the two cassette reversing mechanisms.

Images