Return device and coating system

Abstract

The utility model discloses a returning device and a coating system, relates to the technical field of photovoltaic equipment, and is used for stably returning a carrier to the head end of a process section. The returning device comprises a supporting frame, a plurality of conveying wheels and a bidirectional driving mechanism, and the supporting frame is provided with a returning channel; the multiple conveying wheels are rotatably connected to the supporting frame and located in the return channel, the rotating axes of the conveying wheels are in the first direction, and the first direction is perpendicular to the axis of the return channel; the bidirectional driving mechanism is connected to the supporting frame and comprises a first output end and a second output end which are sequentially arranged in the first direction. The sides where the first output end and the second output end are located are each provided with a plurality of conveying wheels sequentially arranged in the axis direction of the return channel, the conveying wheels on the same side are in transmission connection, and the first output end and the second output end are in transmission connection with the conveying wheels on the corresponding sides so as to drive the conveying wheels on the two sides to rotate synchronously. The returning device is used for conveying the carriers and other target pieces.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic devices, and particularly relates to a returning device and a coating system. BACKGROUND

[0002] With the rapid development of the photovoltaic power generation industry, the demand for battery pieces used for photovoltaic power generation is increasing, so the production line production of battery pieces is becoming increasingly important, and the related equipment on the production line also needs to be continuously optimized.

[0003] In the related art, in the process of producing battery pieces, the substrate is placed on the carrier, and then the carrier sequentially passes through different process chambers to realize heating, coating and other processes. After completing the related process treatment, the processed substrate needs to enter the next process, and the carrier needs to be returned from the tail end of the process section to the head end of the process section for reuse, so a returning device needs to be provided to stably return the carrier to the head end of the process section. CONTENT OF THE UTILITY MODEL

[0004] The returning device and the coating system provided by the embodiments of the present application are used to stably return the carrier to the head end of the process section.

[0005] In a first aspect, the embodiments of the present application provide a returning device, which comprises a support frame, a plurality of conveying wheels and a bidirectional driving mechanism. The support frame has a returning channel. The plurality of conveying wheels are rotatably connected to the support frame and located in the returning channel. The rotation axis of the conveying wheel is along a first direction, and the first direction is perpendicular to the axis of the returning channel. The bidirectional driving mechanism is connected to the support frame. The bidirectional driving mechanism comprises a first output end and a second output end arranged in sequence along the first direction. The side where the first output end and the second output end are located both have a plurality of conveying wheels arranged in sequence along the axis direction of the returning channel. The plurality of conveying wheels on the same side are transmissionally connected. The first output end and the second output end are respectively transmissionally connected with the conveying wheels on the corresponding side to drive the conveying wheels on both sides to rotate synchronously.

[0006] The returning device provided by the embodiments of the present application provides support for the bidirectional driving mechanism and the conveying wheels. Since the first output end and the second output end can respectively drive the conveying wheels on the corresponding side to rotate, and the plurality of conveying wheels on the same side are transmissionally connected, the first output end and the second output end can drive the plurality of conveying wheels on the corresponding side to rotate synchronously. After the target piece (for example, the carrier) is placed on the conveying wheel, the friction between the conveying object and the conveying wheel can drive the conveying object to be transmitted under the rotation of the conveying wheel.

[0007] Since both sides of the bidirectional drive mechanism are provided with conveying wheels, and the first output end and the second output end can respectively drive the conveying wheels on the corresponding side to rotate, there is no relative master-slave relationship between the conveying wheels on both sides, and they are driven at the same level, which can ensure the stability of the rotation of the conveying wheels on both sides. This not only ensures the stability of the conveying of the objects to be conveyed, but also is suitable for high-speed transmission, which can ensure the conveying efficiency.

[0008] In a possible implementation of the present application, the bidirectional drive mechanism includes a drive motor and a dual-output shaft reducer. The output shaft of the drive motor is transmission-connected to the input end of the dual-output shaft reducer. The first output end and the second output end are respectively located on two rotating shafts of the dual-output shaft reducer arranged in sequence along the first direction, and the rotation axis of the rotating shaft is along the first direction.

[0009] In this way, the drive motor can drive the two rotating shafts on the dual-output shaft reducer to rotate, that is, the first output end and the second output end, thereby driving the conveyor wheels on both sides to rotate synchronously. In addition, the dual-output shaft reducer has a controlled deceleration effect, so it can control the speed of the conveyor wheels and ensure smooth transportation.

[0010] In a possible implementation of the present application, the return device also includes multiple first synchronous belts and multiple synchronous wheels. The multiple synchronous wheels are arranged corresponding to the multiple conveying wheels. The synchronous wheels are coaxially arranged with the corresponding conveying wheels. Along the axial direction of the return channel, any two adjacent synchronous wheels are sleeved with a first synchronous belt. Along the axial direction of the synchronous wheel, any two adjacent first synchronous belts are arranged in sequence.

[0011] By providing synchronous wheels and a first synchronous belt, the first synchronous belt is used to connect two adjacent synchronous wheels, thereby driving the synchronous rotation of multiple conveyor wheels. Since the first synchronous belt is mounted on the synchronous wheels, it does not need to be mounted on the conveyor wheels, which can avoid interference with the conveyor wheels and better utilize the conveyor wheels to transport target parts. In addition, since any two adjacent conveyor wheels are connected by the first synchronous belt, the length of the first synchronous belt can be controlled and will not be too long, thereby improving the smoothness of transportation.

[0012] In a possible implementation of the present application, different first synchronous belts corresponding to the same conveying wheel are respectively sleeved on different synchronous wheels corresponding to the same conveying wheel.

[0013] In this way, it is convenient to arrange different first synchronous belts corresponding to the same conveying wheel.

[0014] In a possible implementation of the present application, the returning device further comprises a plurality of bearings corresponding to the plurality of conveying wheels, an outer sleeve of the bearing is connected to the support frame, an inner hole of the bearing extends in the first direction, the inner hole of the bearing is sleeved with a synchronous shaft, and the conveying wheel and the corresponding synchronous wheel are connected to the synchronous shaft to be coaxially arranged through the synchronous shaft.

[0015] In this way, the conveying wheel and the synchronous wheel can be coaxially connected to the support frame through the cooperation of the bearing and the synchronous shaft.

[0016] In a possible implementation of the present application, the returning device further comprises a driving wheel and a second synchronous belt, the first output end and the second output end are respectively connected with the driving wheel, the axial direction of the driving wheel is parallel to the axial direction of the synchronous wheel, the second synchronous belt is sleeved on the driving wheel and the corresponding side synchronous wheel, and the first synchronous belt and the second synchronous belt are sequentially arranged along the axial direction of the driving wheel.

[0017] In this way, the first output end and the second output end can drive the corresponding side driving wheel to rotate, and since the second synchronous belt is sleeved on the driving wheel and the corresponding side synchronous wheel, the driving wheel can drive the synchronous wheel to rotate, so as to facilitate the structural layout and the spatial layout.

[0018] In a possible implementation of the present application, the support frame is provided with a heat preservation box, the returning channel is formed inside the heat preservation box and penetrates through the heat preservation box, and the returning device further comprises a sealing plate, the end of the returning channel is provided with the sealing plate, and the sealing plate is used to open or block the end of the returning channel.

[0019] Through the above arrangement, since the end of the returning channel is provided with the sealing plate, when the target object is located in the returning channel, the two ends of the returning channel can be blocked by the sealing plate, so that the returning channel is in a closed environment, so as to preserve the target object, and when the target object needs to be conveyed out of the returning channel, the outlet end of the returning channel can be opened to convey the target object out of the returning channel.

[0020] In a possible implementation of the present application, the support frame has a rotating shaft, the sealing plate is connected to the rotating shaft, and the rotating shaft can rotate around its axis between a first position and a second position to drive the sealing plate to open or block the end of the returning channel.

[0021] In this way, the sealing plate can open or block the end of the returning channel under the rotation of the rotating shaft, and the operation convenience can be improved.

[0022] In a possible implementation of the present application, the backhaul device further comprises a power mechanism for driving the rotating shaft to rotate, the power mechanism comprising a power part and a plurality of connecting rods connected in sequence, the power part being connected to the support frame, any two adjacent connecting rods being capable of rotating about a corresponding connecting position, and the rotating axes of the plurality of connecting rods being parallel to the rotating axis of the rotating shaft; along the arrangement direction of the plurality of connecting rods, the first connecting rod is connected to the rotating shaft, and the last connecting rod is connected to the telescopic shaft of the power part, the telescopic direction of the telescopic shaft being perpendicular to the axial direction of the rotating shaft.

[0023] The plurality of connecting rods are driven to rotate by the telescopic shaft of the power part, thereby driving the rotating shaft to rotate, and driving the sealing plate to open or block the end of the backhaul channel.

[0024] In a possible implementation of the present application, the backhaul device further comprises a detector arranged on the support frame and electrically connected to the power mechanism, and configured to detect the position of a target object in the backhaul channel, and in the case that the target object reaches a target position, the detector controls the power mechanism to drive the sealing plate to open the outlet end of the backhaul channel.

[0025] By arranging the detector, the power mechanism can be controlled to drive the sealing plate to open the outlet end of the backhaul channel when it is required to transport the target object out of the backhaul channel, thereby improving the intelligent degree of the backhaul device as a whole.

[0026] In a possible implementation of the present application, the heat preservation box comprises a plurality of box bodies arranged in sequence along the axial direction of the backhaul channel, each of the box bodies being formed with a sub-channel penetrating through the box body along the axial direction of the backhaul channel, and the plurality of sub-channels being connected in series to form the backhaul channel.

[0027] In this way, the box body can be taken as a processing unit, and then a plurality of box bodies can be connected in series, thereby facilitating the processing of the heat preservation box and the formation of the backhaul channel.

[0028] In a second aspect, the embodiments of the present application provide a coating system, comprising a coating process section and the backhaul device provided in any of the above embodiments, the inlet end of the backhaul channel of the backhaul device being in communication with the tail end of the coating process section, and the outlet end of the backhaul channel being in communication with the head end of the coating process section.

[0029] The coating system provided by the embodiments of the present application can perform coating and other process treatments on the substrates on the carrier in the coating process section, and after the treatment is completed, the substrates continue to be processed, while the carrier enters from the inlet end of the backhaul channel, and then reaches the head end of the coating process section through the outlet end of the backhaul device, so as to realize the recycling of the carrier. In addition, since the coating system comprises the backhaul device in any of the above embodiments, the stability of the backhaul transportation can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 An external structure schematic diagram of a coating system provided by the embodiment of the present application;

[0031] Figure 2 A partial external structure diagram of a backhaul device provided by the embodiment of the present application;

[0032] Figure 3 An external structure diagram of the cooperation of a bidirectional driving mechanism, a transmission shaft, a driving wheel, a synchronous wheel, a first synchronous belt, a second synchronous belt and a conveying wheel provided by the embodiment of the present application;

[0033] Figure 4 A cross-sectional schematic diagram of the cooperation of a synchronous wheel, a conveying wheel and a first synchronous belt provided by the embodiment of the present application;

[0034] Figure 5 An external structure schematic diagram of a heat preservation box including multiple box bodies provided by the embodiment of the present application;

[0035] Figure 6 An external structure schematic diagram of the cooperation of a power mechanism and a sealing plate provided by the embodiment of the present application;

[0036] Figure 7 An external structure schematic diagram of a box body provided by the embodiment of the present application.

[0037] Reference signs:

[0038] 01-coating system;

[0039] 1-backhaul device; 11-support frame; a-backhaul passage; 111-heat preservation box; 1111-box body; b-sub-passage; C1-side plate; C2-top plate; C3-bottom plate; C4-end plate; 1112-rotation shaft; 12-conveying wheel; 13-bidirectional driving mechanism; A-first output end; B-second output end; 131-driving motor; 132-double output shaft speed reducer; X-first direction; 14-first synchronous belt; 15-synchronous wheel; 16-bearing; 17-synchronous shaft; 18-driving wheel; 19-second synchronous belt; 20-transmission shaft; 21-tensioning wheel; 22-sealing plate; 221-supporting rod; 23-power mechanism; 231-power part; 232-linkage; 24-detector; 2-coating process section; 3-carrier. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the specific technical solutions of the present application will be further described in detail below with reference to the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0041] In the embodiments of the present application, the terms "first", "second" are used only for descriptive purposes, and cannot be construed as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0042] In addition, in the embodiments of the present application, the orientation terms such as "upper", "lower", "left" and "right" are defined with respect to the orientation of the components shown in the drawings, and it should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation of the components placed in the drawings.

[0043] In the embodiments of the present application, unless otherwise specified and limited, the term "connection" should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through intermediate medium.

[0044] In the embodiments of the present application, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitation, the element defined by the sentence "including a…" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0045] In the embodiments of the present application, the words such as "exemplary" or "for example" are used to mean an example, illustration, or description. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the use of "exemplary" or "for example" and the like is intended to present the relevant concept in a specific manner.

[0046] With the rapid development of the photovoltaic power generation industry, the demand for battery pieces used in photovoltaic power generation is increasing, so the production line production of battery pieces is becoming increasingly important, and the related equipment on the production line also needs to be continuously optimized.

[0047] In the process of producing battery pieces, the substrate is placed on the carrier, the carrier passes through the film plating process section, the surface of the substrate is plated, after the film plating is completed, the carrier is recycled, and the plated substrate continues to be processed.

[0048] Based on this, asFigure 1 As shown, the present application provides a coating system 01, including a coating process section 2 and a return device 1, the inlet end of the return channel a on the return device 1 is connected to the tail end of the coating process section 2, and the outlet end of the return channel a is connected to the head end of the coating process section 2.

[0049] In some examples, the coating process section 2 includes multiple process chambers, which are connected in series, and two adjacent process chambers can be connected or isolated from each other. By providing multiple process chambers, the carrier 3 carrying the substrate will pass through the multiple process chambers in sequence, and the substrate will be processed in different process chambers to ultimately complete the corresponding coating process.

[0050] Exemplarily, the multiple process chambers include a wafer input chamber, a heating chamber, a coating chamber, and a wafer output chamber. The substrate enters a vacuum environment through the wafer input chamber and is heated in the heating chamber to facilitate coating in the coating chamber. After coating, the substrate enters the wafer output chamber and is then transported out of the wafer output chamber.

[0051] Through the above-mentioned arrangement, the substrate placed on the carrier 3 can pass through the coating process section 2. In the coating process section 2, the substrate will be subjected to coating and other process treatments. After the treatment is completed, the substrate will continue to undergo subsequent processing, and the carrier 3 will enter from the inlet end of the return device 1, and then reach the head end of the coating process section 2 again through the outlet end of the return device 1 to realize the recycling and reuse of the carrier 3.

[0052] During the transportation of the carrier 3 in the return channel a, it is necessary to ensure the stability and efficiency of the transportation of the carrier 3 , so the structure of the return device 1 needs to be designed specifically.

[0053] Based on this, Figure 2 、 Figure 3 As shown, the present application provides a return device 1, including a support frame 11, a plurality of conveying wheels 12 and a bidirectional driving mechanism 13, and the support frame 11 has a return channel a. The plurality of conveying wheels 12 are rotatably connected to the support frame 11 and are located in the return channel a. The rotation axis of the conveying wheel 12 is along the first direction X, and the first direction X is perpendicular to the axis of the return channel a. The bidirectional driving mechanism 13 is connected to the support frame 11, and the bidirectional driving mechanism 13 includes a first output end A and a second output end B sequentially arranged along the first direction X. The side where the first output end A and the second output end B are located both has a direction along the axis of the return channel a ( Figure 2 The plurality of conveying wheels 12 are sequentially arranged in the Y direction, and the plurality of conveying wheels 12 on the same side are transmission-connected to each other, and the first output end A and the second output end B are respectively transmission-connected to the conveying wheel 12 on the corresponding side to drive the conveying wheels 12 on both sides to rotate synchronously.

[0054] It can be understood that the distance between two adjacent conveying wheels 12 in the first direction X should be determined according to the size of the target piece, and it should be ensured that the target piece can be placed on the conveying wheels 12 on both sides of the bidirectional driving mechanism 13 to realize the conveying of the target piece by the friction between the conveying wheels 12 and the target piece.

[0055] In some examples, the first direction X is parallel to the horizontal plane, so that after the target piece such as the carrier 3 is placed on the conveying wheel 12, the target piece can be transported in the axial direction of the return channel a in the horizontal plane, which can facilitate the arrangement of the target piece.

[0056] In some examples, the distance between two adjacent conveying wheels 12 on the same side is less than the size of the target piece in the axial direction of the return channel a, so that the target piece can be in contact with the conveying wheels 12 in sequence, and the target piece can be stably conveyed in the return channel a.

[0057] In some examples, the first output end A and the second output end B are respectively connected in transmission with the first conveying wheel 12 on the corresponding side in the axial direction of the return channel a, and after the first conveying wheel 12 rotates, the first conveying wheel 12 drives the subsequent multiple conveying wheels 12 to rotate synchronously, so as to realize the synchronous rotation of the multiple conveying wheels 12.

[0058] In some examples, the material of the conveying wheel 12 includes aluminum. The conveying wheel 12 made of aluminum material not only has high structural strength, but also has light weight, and can rotate better.

[0059] In some examples, a rubber ring is sleeved on the conveying wheel 12, for example, the material of the rubber ring can include fluorine, and the conveying wheel 12 contacts the target piece through the rubber ring, so that the friction force can be increased, the target piece can be prevented from slipping on the conveying wheel 12, and the stable conveying of the target piece can be ensured.

[0060] Among them, two rubber rings can be sleeved on one conveying wheel 12, and the two rubber rings are sequentially arranged in the axial direction of the conveying wheel 12, so that the target piece can be fully contacted with the rubber ring, and the friction between the two can be ensured.

[0061] In addition, a groove can be formed on the conveying wheel 12, the groove is arranged around the conveying wheel 12, and the rubber ring is arranged in the groove to be sleeved on the conveying wheel 12, so that the rubber ring can be stably arranged on the conveying wheel 12, and the stable contact between the target piece and the rubber ring can be ensured.

[0062] The support frame 11 supports the bidirectional driving mechanism 13 and the conveying wheels 12. Since the first output end A and the second output end B can drive the conveying wheels 12 on the corresponding side to rotate, and since the conveying wheels 12 on the same side are transmissionally connected, the first output end A and the second output end B can drive the conveying wheels 12 on the corresponding side to rotate synchronously. After the target piece is placed on the conveying wheels 12, the friction between the target piece and the conveying wheels 12 can drive the conveying object to be transmitted under the rotation of the conveying wheels 12.

[0063] Since the conveying wheels 12 are arranged on both sides of the bidirectional driving mechanism 13, and the first output end A and the second output end B can drive the conveying wheels 12 on the corresponding side to rotate, the conveying wheels 12 on both sides are not in a master-slave relationship, but are driven in parallel. Compared with the scheme in the related art in which one side is driven and the other side is driven, the scheme in the present application can ensure the stability of the rotation of the conveying wheels 12 on both sides, so that the stability of the conveying object can be ensured, and the scheme is also suitable for high-speed transmission, and the conveying efficiency can be ensured.

[0064] The structure of the bidirectional driving mechanism 13 can be various, for example, the bidirectional driving mechanism 13 can adopt the structure of a bidirectional motor, or can adopt the structure in which a driving motor 131 and a double-output shaft reducer 132 are cooperated, which will be described in detail below.

[0065] In some embodiments, as shown in Figure 3 the bidirectional driving mechanism 13 includes a driving motor 131 and a double-output shaft reducer 132. The output shaft of the driving motor 131 is transmissionally connected with the input end of the double-output shaft reducer 132. The first output end A and the second output end B are respectively arranged on two rotating shafts of the double-output shaft reducer 132 arranged in sequence along the first direction X, and the rotation axes of the rotating shafts are along the first direction X.

[0066] The double-output shaft reducer 132 can be a double-output shaft planetary reducer.

[0067] In addition, the bidirectional driving mechanism 13 is connected with the support frame 11. The driving motor 131 can be connected with the support frame 11, or the double-output shaft reducer 132 can be connected with the support frame 11, or the driving motor 131 and the double-output shaft reducer 132 can be connected with the support frame 11.

[0068] In some examples, the driving motor 131 is a rotating motor. The driving motor 131 transmits the rotating torque to the double-output shaft reducer 132, and then the double-output shaft reducer 132 converts the rotating torque of the two rotating shafts rotating around the axes thereof, so as to drive the conveying wheels 12 to rotate.

[0069] Through the above setting, the driving motor 131 provides power for the double-output shaft reducer 132, and the double-output shaft reducer 132 converts the rotating torque of the driving motor 131 into the torque of the two rotating shafts rotating around their axes. Since the axes of the rotating shafts are along the first direction X, the two rotating shafts can drive the corresponding side conveying wheel 12 to rotate, so that the conveying wheels 12 on both sides rotate synchronously, realizing the transportation of the target piece. In addition, since the double-output shaft reducer 132 has the effect of controlling the reduction, the rotating speed of the conveying wheel 12 can be controlled to ensure the smoothness of the conveying.

[0070] Of course, in other embodiments, the bidirectional driving mechanism 13 can also include a double-shaft motor, and the double-shaft motor extends along the first direction X relative to the two output shafts on both sides, and the first output end A and the second output end B are respectively located on the two output shafts.

[0071] The multiple conveying wheels 12 on the same side can be connected in transmission through a synchronous belt. Alternatively, the multiple conveying wheels 12 on the same side can be connected in transmission through a chain, a gear, etc., which will be described in detail below.

[0072] In some embodiments, as shown in Figure 3 , Figure 4 The return device 1 further includes multiple first synchronous belts 14 and multiple synchronous wheels 15. The multiple synchronous wheels 15 are arranged corresponding to the multiple conveying wheels 12, and the synchronous wheel 15 is coaxially arranged with the corresponding conveying wheel 12. Along the axis direction of the return channel a, the first synchronous belt 14 is sleeved on any two adjacent synchronous wheels 15, and along the axial direction of the synchronous wheel 15, any two adjacent first synchronous belts 14 are sequentially arranged.

[0073] Among them, the synchronous wheel 15 can be arranged on any side of the corresponding conveying wheel 12.

[0074] For example, the synchronous wheel 15 is arranged on the outside of the corresponding conveying wheel 12, and the synchronous wheel 15 is arranged outside the return channel a. In this way, the synchronous wheel 15 can avoid occupying the space inside the return channel a, and also can avoid affecting the contact between the target piece and the conveying wheel 12, ensuring the normal transportation of the target piece.

[0075] In addition, the first output end A and the second output end B are in transmission connection with one conveying wheel 12 on the corresponding side, which can have the following two cases.

[0076] In the first case, the first output end A and the second output end B are in transmission connection with one conveying wheel 12 on the corresponding side, and then the conveying wheel 12 drives the coaxially arranged synchronous wheel 15 to rotate. Then, the multiple synchronous wheels 15 rotate synchronously through the first synchronous belt 14, and drive the conveying wheels 12 coaxially arranged with them to rotate coaxially, so as to realize the synchronous rotation of the multiple conveying wheels 12.

[0077] In the second case, the first output end A and the second output end B are connected to the corresponding synchronous wheel 15 of the corresponding one of the conveying wheels 12, and then the synchronous wheel 15 drives the conveying wheel 12 coaxially arranged therewith to rotate, and synchronously drives the subsequent synchronous wheels 15 connected through the first synchronous belt 14 to rotate, and then the subsequent synchronous wheels 15 will drive the corresponding conveying wheels 12 respectively to rotate, so as to realize the synchronous rotation of the plurality of conveying wheels 12.

[0078] In addition, the plurality of conveying wheels 12 can be arranged in one-to-one correspondence with the plurality of synchronous wheels 15. Alternatively, one conveying wheel 12 can be arranged in correspondence with a plurality of synchronous wheels 15.

[0079] Exemplarily, one conveying wheel 12 corresponds to two synchronous wheels 15, and the two synchronous wheels 15 are located on the outer side of the corresponding conveying wheel 12.

[0080] Through the above arrangement, the first synchronous belt 14 is used to drive any two adjacent synchronous wheels 15 on the same side to be connected, so that the plurality of synchronous wheels 15 can rotate synchronously to drive the plurality of conveying wheels 12 corresponding thereto to rotate synchronously. Since the first synchronous belt 14 is arranged on the adjacent two synchronous wheels 15, the arrangement of the first synchronous belt 14 can avoid interfering with the conveying wheel 12, so that the target piece is more convenient to contact with the conveying wheel 12, and the conveying wheel 12 is more convenient to convey the target piece. In addition, since any two adjacent conveying wheels 12 are connected through the first synchronous belt 14, the length of the first synchronous belt 14 can be controlled and will not be too long, so as to improve the stability of conveying.

[0081] On this basis, in some embodiments, as shown in Figure 4 The different first synchronous belts 14 corresponding to the same conveying wheel 12 are arranged on the different synchronous wheels 15 corresponding to the same conveying wheel 12.

[0082] It can be understood that in this case, the same conveying wheel 12 corresponds to at least two synchronous wheels 15.

[0083] In addition, the different first synchronous belts 14 corresponding to the same conveying wheel 12 can be at least two first synchronous belts 14 used for driving the conveying wheel 12 and the adjacent two conveying wheels 12 on the same side.

[0084] Alternatively, it can also be at least two first synchronous belts 14 used for driving the conveying wheel 12 and the adjacent one of the conveying wheels 12 on the same side.

[0085] Through the above arrangement, the different first synchronous belts 14 corresponding to the same conveying wheel 12 are respectively sleeved on the different synchronous wheels 15 corresponding to the conveying wheel 12, and since the different synchronous wheels 15 corresponding to the conveying wheel 12 are sequentially arranged along the axial direction of the conveying wheel 12, the different first synchronous belts 14 corresponding to the conveying wheel 12 will not interfere with each other, which facilitates the arrangement of the first synchronous belts 14 and the transmission connection between the synchronous wheels 15.

[0086] Of course, in other embodiments, the synchronous wheels 15 can also correspond one-to-one to the conveying wheels 12. In this way, the different first synchronous belts 14 corresponding to the same conveying wheel 12 need to be sleeved on the same synchronous wheel 15, and therefore the width of the synchronous wheel 15 needs to be larger for the first synchronous belts 14 of the same width.

[0087] In some embodiments, as shown in Figure 4 , the return device 1 further comprises a plurality of bearings 16 corresponding to the plurality of conveying wheels 12, the outer sleeve of the bearing 16 is connected to the support frame 11, the inner hole of the bearing 16 extends along the first direction X, the inner hole of the bearing 16 is sleeved with a synchronous shaft 17, and the conveying wheel 12 and the corresponding synchronous wheel 15 are connected to the synchronous shaft 17 to be coaxially arranged through the synchronous shaft 17.

[0088] It can be understood that the synchronous shaft 17 also extends along the first direction X, and the conveying wheel 12 and the synchronous wheel 15 are coaxially connected to the synchronous shaft 17, so that the synchronous shaft 17 can rotate around its axis to drive the coaxial rotation of the conveying wheel 12 and the synchronous wheel 15.

[0089] In some examples, the side wall of the return channel a has a connecting hole extending along the first direction X, the bearing 16 is arranged in the connecting hole, one end of the synchronous shaft 17 extends into the return channel a and is connected to the conveying wheel 12, and the other end of the synchronous shaft 17 extends out of the return channel a and is connected to the synchronous wheel 15. In this way, the bearing 16 and the synchronous shaft 17 are used to synchronously connect the conveying wheel 12 and the synchronous wheel 15 to the support frame 11.

[0090] Through the above arrangement, the synchronous shaft 17 can rotate around its axis relative to the support frame 11, and since the conveying wheel 12 and the synchronous wheel 15 are coaxially arranged through the synchronous shaft 17, the synchronous shaft 17 can drive the coaxial rotation of the conveying wheel 12 and the synchronous wheel 15. By arranging the bearing 16 and the synchronous shaft 17, not only the coaxial arrangement of the conveying wheel 12 and the synchronous wheel 15 is achieved, but also the rotational connection of the conveying wheel 12 and the synchronous wheel 15 relative to the support frame 11 is achieved.

[0091] In some embodiments, as shown in Figure 3 , Figure 4As shown, the returning device 1 further comprises a driving wheel 18 and a second synchronous belt 19, the driving wheel 18 is connected with the first output end A and the second output end B respectively, the axial direction of the driving wheel 18 is parallel to the axial direction of the synchronous wheel 15, the second synchronous belt 19 is sleeved on the driving wheel 18 and the corresponding side synchronous wheel 15, and the first synchronous belt 14 and the second synchronous belt 19 are sequentially arranged along the axial direction of the driving wheel 18.

[0092] It can be understood that the driving wheel 18 and the synchronous wheel 15 are connected in transmission through the second synchronous belt 19, which depends on the friction between the driving wheel 18, the synchronous wheel 15 and the second synchronous belt 19.

[0093] In some examples, the driving wheel 18 is located on the side of the synchronous wheel 15 perpendicular to the axial direction of the synchronous wheel 15, so that the second synchronous belt 19 can be sleeved on the driving wheel 18 and the synchronous wheel 15, and the space layout is facilitated.

[0094] In some examples, along the axial direction of the returning channel a, the driving wheel 18 is connected in transmission with the corresponding side first synchronous wheel 15 through the second synchronous belt 19. In this way, the driving wheel 18 can drive the first synchronous wheel 15 to rotate through the second synchronous belt 19, and then drive the subsequent multiple synchronous wheels 15 to rotate, and at the same time, the synchronous wheel 15 drives the corresponding multiple conveying wheels 12 to rotate, so as to realize conveying.

[0095] In some examples, the first synchronous belt 14 and the second synchronous belt 19 are sleeved on different synchronous wheels 15, so that their respective arrangements are facilitated and interference is avoided.

[0096] Through the above arrangement, the first output end A and the second output end B can drive the driving wheel 18 connected thereto to rotate, respectively. Since the second synchronous belt 19 is sleeved on the driving wheel 18 and the corresponding side synchronous wheel 15, the driving wheel 18 can drive the synchronous wheel 15 to rotate, and at the same time, the synchronous wheel 15 drives the corresponding multiple conveying wheels 12 to rotate, so as to realize conveying of the target piece. By arranging the driving wheel 18 and the second synchronous belt 19, the structural layout and the space layout are facilitated.

[0097] On this basis, in some embodiments, as shown in the figure, Figure 3 The returning device 1 further comprises a transmission shaft 20 extending along the first direction X; the transmission shaft 20 is arranged between the first output end A and the corresponding side driving wheel 18, and the first output end A is connected with the driving wheel 18 through the transmission shaft 20; and / or, the transmission shaft 20 is arranged between the second output end B and the corresponding side driving wheel 18, and the second output end B is connected with the driving wheel 18 through the transmission shaft 20.

[0098] In some examples, the first output end A is connected to the drive wheel 18 through the transmission shaft 20, which means that one end of the transmission shaft 20 is connected to the corresponding first output end A, and the other end of the transmission shaft 20 is connected to the rotation center of the corresponding drive wheel 18.

[0099] In some examples, one end of the transmission shaft 20 is connected to the corresponding first output end A through a coupling, and the other end of the transmission shaft 20 is connected to the corresponding drive wheel 18 on one side through a coupling. In this way, the transmission shaft 20 is detachably connected to the first output end A and the drive wheel 18, which can facilitate disassembly, assembly, transportation, and the like.

[0100] In some examples, the second output end B is connected to the drive wheel 18 through the transmission shaft 20, which means that one end of the transmission shaft 20 is connected to the corresponding second output end B, and the other end of the transmission shaft 20 is connected to the rotation center of the corresponding drive wheel 18.

[0101] In some examples, one end of the transmission shaft 20 is connected to the corresponding second output end B through a coupling, and the other end of the transmission shaft 20 is connected to the corresponding drive wheel 18 on one side through a coupling. In this way, the transmission shaft 20 is detachably connected to the second output end B and the drive wheel 18, which can facilitate disassembly, assembly, transportation, and the like. For example, the coupling can be a plum coupling.

[0102] In this way, along the first direction X, the transmission shaft 20 can facilitate the transmission connection of the first output end A and the corresponding drive wheel 18 on one side, and / or the transmission connection of the second output end B and the corresponding drive wheel 18 on one side, and facilitate the arrangement of the bidirectional driving mechanism 13 and the spatial layout of the whole backhaul device 1.

[0103] In some embodiments, as shown in Figure 4 The backhaul device 1 further includes a tensioning wheel 21 connected to the support frame 11, and the tensioning wheel 21 is used to tension the first synchronous belt 14. By arranging the tensioning wheel 21, the tightness of the first synchronous belt 14 can be adjusted, so as to ensure the friction between the first synchronous belt 14 and the synchronous wheel 15 or the conveying wheel 12, thereby ensuring the synchronous transmission of the plurality of conveying wheels 12 on the same side.

[0104] It can be understood that, in order to play the role of the tensioning wheel 21, on the same side, the tensioning wheel 21 should be located outside the range in which the first synchronous belt 14 is sleeved, and abut against the first synchronous belt 14.

[0105] In some examples, the tensioning wheel 21 is rotatably connected to the support frame 11, and the rotation axis of the tensioning wheel 21 is along the first direction X.

[0106] The tensioning wheel 21 can be arranged inside the return channel a or outside the return channel a, and the selection is made specifically according to the setting position of the first synchronous belt 14 .

[0107] The carrier 3 is heated in the coating process section 2 to ensure that the substrate on the carrier 3 is also heated, thereby facilitating the coating process. Therefore, the carrier 3 is still hot when it is discharged from the end of the coating process section 2. To avoid heat waste, the carrier 3 can be kept warm during its return process. This is explained in detail below.

[0108] In some embodiments, as Figure 2 、 Figure 5 As shown, a heat preservation box 111 is formed on the support frame 11, and a return channel a is formed inside the heat preservation box 111 and passes through the heat preservation box 111. The return device 1 also includes a sealing plate 22, and a sealing plate 22 is provided at the end of the return channel a. The sealing plate 22 is used to open or block the end of the return channel a.

[0109] It can be understood that a space is formed in the thermal insulation box 111, so that the space passes through the thermal insulation box 111 along the axial direction of the return channel a to form the return channel a.

[0110] In addition, sealing plates 22 are provided at the inlet end and the outlet end of the return channel a. After the vehicle 3 enters the return channel a, the sealing plates 22 are used to block the inlet end and the outlet end of the return channel a, thereby making the return channel a a closed environment.

[0111] In some examples, the material of the thermal insulation box 111 and the sealing plate 22 may include thermal insulation material, for example, the thermal insulation material may include polyethylene foam material.

[0112] In some examples, a first sealing ring is provided at the inlet end of the return channel a, and the first sealing ring is provided around the inlet end, so that the sealing plate 22 can be better utilized to seal the inlet end.

[0113] In some examples, a second sealing ring is provided at the outlet end of the return channel a, and the second sealing ring is provided around the outlet end, so that the sealing plate 22 can be better utilized to seal the outlet end.

[0114] For example, the material of the sealing ring may include foamed silicone.

[0115] With the above arrangement, since the end of the return channel a is provided with the sealing plate 22, when the target piece is located in the return channel a, the two ends of the return channel a can be blocked by the sealing plate 22, so that the return channel a is in a closed environment to keep the target piece warm, and when the target piece needs to be transported out of the return channel a, the outlet end of the return channel a can be opened to allow the target piece to be transported out of the return channel a. In this way, the target piece can be kept warm during the return process.

[0116] The sealing plate 22 can be movably connected to the support frame 11. Alternatively, the sealing plate 22 can be separate from the support frame 11.

[0117] In some embodiments, as shown in Figure 2 , Figure 6 The support frame 11 has a rotating shaft 1112, and the sealing plate 22 is connected to the rotating shaft 1112. The rotating shaft 1112 can rotate about its axis between a first position and a second position to drive the sealing plate 22 to open or block the end of the return channel a. In this way, the sealing plate 22 can be opened or blocked by the rotating shaft 1112, which can improve the convenience of operation.

[0118] In some examples, the rotating shaft 1112 is rotatably connected to the end face of the end of the return channel a, and the rotating axis of the rotating shaft 1112 is parallel to the end face. In this way, the rotating shaft 1112 can be rotated to drive the sealing plate 22 to cover the end of the return channel a to block the end of the return channel a, or to drive the sealing plate 22 to open from the blocked position to the open position to open the end of the return channel a.

[0119] The number of rotating shafts 1112 can be one, or the number of rotating shafts 1112 can be multiple. The multiple rotating shafts 1112 are arranged along their axes in sequence, and the rotating axes of the multiple rotating shafts 1112 coincide. In this way, the connection stability of the sealing plate 22 and the rotating shaft 1112 can be ensured.

[0120] In addition, the sealing plate 22 can be directly on the rotating shaft 1112. Alternatively, as shown in Figure 6 The sealing plate 22 can be connected to the driving shaft through a support rod 221. Specifically, the support rod 221 is arranged between the rotating shaft 1112 and the sealing plate 22. The extension direction of the support rod 221 is perpendicular to the axis direction of the rotating shaft 1112. One end of the support rod 221 is connected to the rotating shaft 1112, and the other end of the support rod 221 is connected to the sealing plate 22. In this way, the movement of the sealing plate 22 can be facilitated.

[0121] Exemplarily, the number of the support rods 221 can be one, or can also be multiple, and the multiple support rods 221 are sequentially arranged along the axial direction of the rotating shaft 1112. For example, the number of the support rods 221 can be two, three, four or five, etc.

[0122] On this basis, as shown in Figure 2 , Figure 6 In some embodiments, the backhaul device 1 further comprises a power mechanism 23 for driving the rotating shaft 1112 to rotate, the power mechanism 23 comprising a power part 231 and multiple sequentially movably connected connecting rods 232, the power part 231 being connected with the support frame 11, any two adjacent connecting rods 232 being rotatable about the corresponding connecting position, and the rotating axes of the multiple connecting rods being parallel to the rotating axis of the rotating shaft 1112; along the arrangement direction of the multiple connecting rods 232, the first connecting rod 232 is connected with the rotating shaft 1112, and the last connecting rod 232 is connected with the telescopic shaft of the power part 231, and the telescopic direction of the telescopic shaft is perpendicular to the axial direction of the rotating shaft 1112.

[0123] In some embodiments, the number of the power mechanisms 23 can be one, or the number of the power mechanisms 23 can also be multiple, and the multiple power mechanisms 23 are sequentially arranged along the axial direction of the rotating shaft 1112. For example, the number of the power mechanisms 23 can be two, three, four or five, etc. In this way, the stability of the rotating rod can be ensured.

[0124] In addition, the power part 231 can be a telescopic motor, or can also be a telescopic cylinder.

[0125] In addition, the number of the connecting rods 232 can be two, three, four or five.

[0126] Through the above arrangement, when the power mechanism 23 is used to drive the rotating shaft 1112 to rotate, the telescopic shaft on the power part 231 will be telescopic, and in the telescopic process, the relative rotation between the two adjacent connecting rods 232 will occur, so as to drive the rotating shaft 1112 to rotate, so as to drive the sealing plate 22 to open or block the end of the backhaul passage a.

[0127] On this basis, in some embodiments, as shown in Figure 2 The backhaul device 1 further comprises a detector 24 arranged on the support frame 11 and electrically connected with the power mechanism 23, and used for detecting the position of the target piece in the backhaul passage a, and when the target piece reaches the target position, the detector 24 controls the power mechanism 23 to drive the sealing plate 22 to open the outlet end of the backhaul passage a.

[0128] By arranging the detector 24, when it is needed to transport the target piece out of the backhaul passage a, the detector 24 can be used to control the power mechanism 23 to drive the sealing plate 22 to open the outlet end of the backhaul passage a, so as to improve the intelligent degree of the backhaul device 1 as a whole.

[0129] It can be understood that the target position should be close to the outlet end of the return channel a, so that the target part can be better insulated.

[0130] The detector 24 may be disposed in the return channel a, or may be disposed in the return channel a.

[0131] In some examples, the target object is conveyed within the return channel a at a constant speed, then decelerated, and finally stopped. When the target object is at the target position, the target object stops moving. At this time, the detector 24 transmits a signal to the power mechanism 23 and the bidirectional drive mechanism 13 to control the opening of the sealing plate 22 and the operation of the conveying wheel 12 to transport the target object to the outside of the conveying channel.

[0132] In some examples, the detector 24 can also detect whether there is a target part in the return channel a. When there is no target part in the return channel a, the detector 24 will transmit a signal to the power mechanism 23 and the bidirectional drive mechanism 13 to control the conveying wheel 12 to stop conveying and control the sealing plate 22 to block the end of the return channel a.

[0133] In some embodiments, as Figure 5 As shown, the thermal insulation box 111 comprises multiple boxes 1111 arranged sequentially along the axis of the return channel a. Each box 1111 is formed with a sub-channel b extending through the box 1111 along the axis of the return channel a. Multiple sub-channels b are connected in series to form the return channel a. This arrangement allows the box 1111 to be used as a processing unit, and then multiple boxes 1111 are connected in series, which facilitates the processing of the thermal insulation box 111 and the formation of the return channel a.

[0134] The number of boxes 1111 can be two, three, four or five.

[0135] In some examples, such as Figure 7 As shown, the box body 1111 is a cubic structure, and the box body 1111 includes two side panels C1 arranged in sequence along the first direction X, a top panel C2 and a bottom panel C3 arranged in sequence perpendicular to the first direction X, and two end panels C4 arranged in sequence along the axis direction of the return channel a; the conveying wheel 12 is rotatably connected to the side panel C1, and the sub-channel b passes through the two end panels C4. The two side panels C1, the top panel C2, the bottom panel C3 and the two end panels C4 are spliced ​​into the box body 1111, and enclosed into the sub-channel b.

[0136] For example, the top plate C2 and the bottom plate C3 are made of polyethylene foam. The two side plates C1 and the two end plates C4 are made of aluminum alloy. This not only keeps the heat in place, but also ensures the structural strength of the box body 1111.

[0137] The above merely preferred embodiments of the present application and are not intended to limit the patent scope of the present application, any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A backhaul apparatus, characterized by, The utility model relates to a kind of return device (1), including: Support frame (11) with back channel (a); Multiple conveying wheels (12) are rotatably connected to the support frame (11), and located in the back channel (a), the rotation axis of the conveying wheel (12) is along the first direction (X), and the first direction (X) is perpendicular to the axis of the back channel (a); Bidirectional driving mechanism (13) is connected to the support frame (11), and the bidirectional driving mechanism (13) includes first output end (A) and second output end (B) arranged in the first direction (X) in sequence; The side where the first output end (A) and the second output end (B) are located is provided with a plurality of conveying wheels (12) arranged in the direction of the axis of the back channel (a) in sequence, and the plurality of conveying wheels (12) on the same side are drivingly connected, and the first output end (A) and the second output end (B) are respectively drivingly connected with the conveying wheels (12) on the corresponding side to drive the conveying wheels (12) on both sides to rotate synchronously.

2. The backhaul device of claim 1, wherein, The bidirectional driving mechanism (13) includes a drive motor (131) and a double-output-shaft reducer (132), the output shaft of the drive motor (131) is drivingly connected with the input end of the double-output-shaft reducer (132), and the first output end (A) and the second output end (B) are respectively located on the two rotating shafts of the double-output-shaft reducer (132) arranged in the first direction (X) in sequence, and the rotating shafts are along the first direction (X).

3. The backhaul device of claim 1, wherein, The return device (1) further includes a plurality of first synchronous belts (14) and a plurality of synchronous wheels (15), the plurality of synchronous wheels (15) are correspondingly arranged with the plurality of conveying wheels (12), the synchronous wheels (15) are coaxially arranged with the corresponding conveying wheels (12), the first synchronous belts (14) are sleeved on any two adjacent synchronous wheels (15) along the axis direction of the back channel (a), and any two adjacent first synchronous belts (14) are sequentially arranged along the axial direction of the synchronous wheels (15).

4. The backhaul device of claim 3, wherein, Different first synchronous belts (14) corresponding to the same conveying wheel (12) are respectively sleeved on different synchronous wheels (15) corresponding to the same conveying wheel (12).

5. The backhaul device of claim 3, wherein, The return device (1) further includes a plurality of bearings (16) correspondingly arranged with the plurality of conveying wheels (12), the outer sleeve of the bearing (16) is connected with the support frame (11), the inner hole of the bearing (16) extends along the first direction (X), the inner hole of the bearing (16) is sleeved with a synchronous shaft (17), and the conveying wheel (12) and the corresponding synchronous wheel (15) are connected on the synchronous shaft (17) to be coaxially arranged through the synchronous shaft (17).

6. The backhaul device of claim 3, wherein, The return device (1) further includes: Driving wheels (18), the first output end (A) and the second output end (B) are respectively connected with the driving wheels (18), and the axial direction of the driving wheels (18) is parallel to the axial direction of the synchronous wheels (15). A second synchronous belt (19) is sleeved on the driving wheel (18) and the corresponding side synchronous wheel (15) along the axial direction of the driving wheel (18), and the first synchronous belt (14) and the second synchronous belt (19) are arranged in sequence.

7. The backhaul device according to any one of claims 1 to 6, wherein, The support frame (11) is provided with a heat preservation box (111), the return channel (a) is formed in the heat preservation box (111) and penetrates through the heat preservation box (111), and the return device (1) further comprises a sealing plate (22), the end of the return channel (a) is provided with the sealing plate (22), and the sealing plate (22) is used for opening or blocking the end of the return channel (a).

8. The backhaul device of claim 7, wherein, The support frame (11) is provided with a rotating shaft (1112), the sealing plate (22) is connected with the rotating shaft (1112), and the rotating shaft (1112) can rotate around its axis between a first position and a second position to drive the sealing plate (22) to open or block the end of the return channel (a).

9. The backhaul apparatus of claim 8, wherein, The return device (1) further comprises a power mechanism (23) for driving the rotating shaft (1112) to rotate, the power mechanism (23) comprises a power part (231) and a plurality of connecting rods (232) connected in sequence, the power part (231) is connected with the support frame (11), any two adjacent connecting rods (232) can rotate around the corresponding connecting position, and the rotating axes of the plurality of connecting rods are parallel to the rotating axis of the rotating shaft (1112). Along the arrangement direction of the plurality of connecting rods (232), the first connecting rod (232) is connected with the rotating shaft (1112), and the last connecting rod (232) is connected with a telescopic shaft of the power part (231), and the telescopic direction of the telescopic shaft is perpendicular to the axial direction of the rotating shaft (1112).

10. The backhaul apparatus of claim 9, wherein, The return device (1) further comprises a detector (24) arranged on the support frame (11) and electrically connected with the power mechanism (23), and used for detecting the position of a target object in the return channel (a), in the case that the target object reaches a target position, the detector (24) controls the power mechanism (23) to drive the sealing plate (22) to open the outlet end of the return channel (a).

11. The backhaul apparatus of claim 7, wherein, The heat preservation box (111) comprises a plurality of box bodies (1111) arranged in sequence along the axial direction of the return channel (a), each of the box bodies (1111) is formed with a sub-channel (b) penetrating through the box body (1111) along the axial direction of the return channel (a), and the plurality of sub-channels (b) are connected in series to form the return channel (a).

12. A coating system, characterized by It comprises: A coating process section (2); The return device (1) is the return device (1) in any one of claims 1-11, the inlet end of the return channel (a) on the return device (1) is communicated with the tail end of the coating process section (2), and the outlet end of the return channel (a) is communicated with the head end of the coating process section (2).

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