Double-layer carrier plate lifting and conveying device, feeding equipment and discharging equipment

Abstract

The utility model provides a kind of double-layer carrier plate lifting transmission device, feeding equipment and discharging equipment, wherein double-layer carrier plate lifting transmission device includes double-layer carrier plate transmission mechanism and double-layer carrier plate lifting mechanism, double-layer carrier plate lifting transmission device in the utility model is equipped with independent transmission component and lifting component for each layer of carrier plate, can independently complete lifting and transmission action according to respective task requirement, meet the transmission requirement under different docking scene, effectively avoid mutual interference between multiple layers, to improve overall operation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of solar cell manufacturing technology, and specifically relates to a double-layer carrier plate lifting and conveying device, a feeding device, and a discharging device. Background Technology

[0002] Currently, most common carrier plate lifting and conveying structures on the market are single-layer designs, capable of lifting only one carrier plate mechanism. While some multi-layer carrier plate lifting and conveying structures exist on more complex production lines, the lack of independent power control between each layer results in weak collaborative operation. In actual production, carrier plates need to be frequently switched between process layer transfers, empty carrier plate return, and gantry loading / unloading. Existing single-layer or multi-layer carrier plate lifting and conveying structures struggle to meet efficient conveying requirements, leading to low work efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a double-layer carrier plate lifting and conveying device, a feeding device and a discharging device, so as to solve the problem of low working efficiency of existing carrier plate lifting and conveying structures.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: In a first aspect, this utility model provides a double-layer carrier plate lifting and conveying device, comprising: A double-layer carrier plate transfer mechanism includes a first-layer transfer component and a second-layer transfer component arranged at intervals along the Z-axis direction. Both the first-layer transfer component and the second-layer transfer component transport the carrier plate along the Y-axis direction. The double-layer carrier lifting mechanism includes an installation assembly and two sets of lifting assemblies, both of which are mounted on the installation assembly. One set of lifting assemblies supports the first-layer transmission assembly and drives it to move along the Z-axis, allowing the first-layer transmission assembly to switch between different positions in the Z-axis direction. The other set of lifting assemblies supports the second-layer transmission assembly and drives it to move along the Z-axis, allowing the second-layer transmission assembly to switch between different positions in the Z-axis direction.

[0005] Furthermore, the mounting assembly includes two mounting plate components spaced apart along the X-axis; each lifting assembly includes two lifting components respectively mounted on the two mounting plate components. The lifting assembly includes a lifting pallet component and a lifting drive component. The lifting pallet component is slidably disposed on the mounting plate component, and the lifting drive component is mounted on the mounting plate component. The drive end of the lifting drive component is connected to the lifting pallet component.

[0006] Furthermore, in at least one set of lifting components, the lifting pallet component is equipped with an anti-collision sensor.

[0007] Furthermore, in the two sets of lifting assemblies, the two lifting drive components installed on the same mounting plate component are arranged at intervals along the Y-axis direction, and the drive ends of the two components face opposite directions.

[0008] Furthermore, in one set of lifting components, the length of the lifting pallet component in the Y-axis direction is less than the length of the first layer transmission component in the Y-axis direction; and / or, in another set of lifting components, the length of the lifting pallet component in the Y-axis direction is less than the length of the second layer transmission component in the Y-axis direction.

[0009] Furthermore, the lifting pallet component includes a connecting vertical plate and a supporting horizontal plate that are connected to each other. The connecting vertical plate is slidably mounted on the mounting vertical plate component. Both the connecting vertical plate and the supporting horizontal plate are provided with weight-reducing holes, and the connection between the two is provided with reinforcing ribs.

[0010] Secondly, this utility model provides a feeding device, including a feeding frame and a double-layer carrier plate lifting and conveying device as described above. The double-layer carrier plate lifting and conveying device is disposed on the feeding frame. When the first layer conveying component switches to the first position in the Z-axis direction, it is used to dock with the bottom return position of the carrier plate of the process equipment to receive an empty carrier plate. When the first layer conveying component switches to the second position in the Z-axis direction, it is used to dock with the loading position of the carrier plate of the feeding gantry mechanism to convey an empty carrier plate. When the second layer conveying component switches to the second position in the Z-axis direction, it is used to dock with the loading position of the carrier plate of the feeding gantry mechanism to receive a fully loaded carrier plate. When the second layer conveying component switches to the third position in the Z-axis direction, it is used to dock with the process position of the carrier plate of the process equipment to convey a fully loaded carrier plate.

[0011] Thirdly, this utility model provides a feeding device, including a feeding frame and a double-layer carrier plate lifting and conveying device as described above. The double-layer carrier plate lifting and conveying device is disposed on the feeding frame. When the second-layer conveying component switches to the third position in the Z-axis direction, it is used to dock with the carrier plate process position of the process equipment to receive a fully loaded carrier plate. When the second-layer conveying component switches to the second position in the Z-axis direction, it is used to dock with the carrier plate unloading position of the feeding gantry mechanism to convey a fully loaded carrier plate. When the first-layer conveying component switches to the second position in the Z-axis direction, it is used to dock with the carrier plate unloading position of the feeding gantry mechanism to receive an empty carrier plate. When the first-layer conveying component switches to the first position in the Z-axis direction, it is used to dock with the carrier plate bottom return position of the process equipment to convey an empty carrier plate.

[0012] Furthermore, the second-layer transmission component is equipped with multiple lifting cylinder components, which are used to lift the carrier plate to separate the carrier plate from the second-layer transmission component; the unloading equipment also includes a carrier plate buffer structure, which is set on the unloading frame and is used to buffer the carrier plate when the lifting cylinder components lift the carrier plate.

[0013] Furthermore, the carrier plate buffer structure includes multiple buffer components located on both sides of the two lifting components along the Y-axis. Each buffer component includes a mounting base installed on the unloading frame, a slide rail and a buffer cylinder respectively installed on the mounting base, and a buffer tray slidably set on the slide rail. The telescopic end of the buffer cylinder is connected to the buffer tray through a floating joint. The buffer tray is used to support the carrier plate when the telescopic end of the buffer cylinder extends.

[0014] Compared with the prior art, the beneficial effects of the double-layer carrier plate lifting and transmission device, loading equipment and unloading equipment provided by this utility model are as follows: The double-layer carrier plate lifting and transmission device in this utility model is equipped with an independent transmission component and lifting component for each layer of carrier plate, which can independently complete the lifting and transmission actions according to their respective task requirements, meet the transmission requirements under different docking scenarios, effectively avoid mutual interference between multiple layers, and thus improve the overall operating efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a perspective view of the feeding equipment in this utility model; Figure 2 This is a schematic diagram of the structure of the carrier plate moving between the feeding equipment, the process equipment and the feeding gantry mechanism in this utility model. Figure 3 This is a perspective view of the material feeding device of this utility model; Figure 4 This is a schematic diagram showing the movement of the carrier plate between the feeding equipment, the process equipment, and the feeding gantry mechanism in this utility model; Figure 5 This is a perspective view of the double-layer carrier plate lifting mechanism in this utility model; Figure 6 This is a front view of the left half of the double-layer carrier plate lifting mechanism in this utility model; Figure 7 This is a perspective view of the left half of the double-layer carrier plate lifting mechanism in this utility model; Figure 8 This is a perspective view of the first-layer transmission component in this utility model; Figure 9 This is a perspective view of the second-layer transmission component in this utility model; Figure 10 This is a perspective view of the conveyor wheel unit and its included intermediate shaft in this utility model; Figure 11 This is a side view of the lifting cylinder component of the second-layer transmission assembly in this utility model when it lifts the carrier plate. Figure 12 This is a perspective view of the lifting cylinder component in this utility model; Figure 13 This is a schematic diagram of the structure of the cache component in the cache carrier board of this utility model; Figure 14 The three-dimensional cache component in this utility model Figure 1 ; Figure 15 Side view of the cache component in this utility model Figure 1 ; Figure 16 The three-dimensional cache component in this utility model Figure 2 ; Figure 17 Side view of the cache component in this utility model Figure 2 ; The main markings in the attached figures are as follows: 100. Double-layer carrier plate lifting and conveying device; 200. Feeding equipment; 210. Feeding frame; 300. Unloading equipment; 310. Unloading frame; 400. Carrier plate; 410. U-shaped fold; 420. L-shaped fold; 501. Carrier plate process position; 502. Carrier plate bottom return position; 503. Carrier plate feeding position; 504. Carrier plate unloading position; 11. First-layer transmission assembly; 12. Second-layer transmission assembly; 101. Transmission frame; 102. Transmission power component; 103. Drive belt; 104. Conveyor wheel unit; 105. Lifting cylinder assembly; 1041. Intermediate shaft; 1042. Rigid wheel; 1043. Synchronous pulley; 1044. Bushing; 1045. Bearing housing; 1046. End cover; 1047. Retaining ring; 1048. Rubber ring; 1051. Mounting base plate; 1052. Lifting cylinder; 1053. Carrier plate limiting block; 20. Mounting components; 21. Lifting components; 201. Mounting upright plate components; 203. Bellows protective cover; 211. Lifting pallet components; 212. Lifting drive components; 230. Anti-collision sensor; 2111. Connecting upright plate; 2112. Supporting cross plate; 2113. Weight reduction holes; 2114. Reinforcing ribs; 30. Buffer component; 301. Mounting base; 302. Slide rail; 303. Buffer cylinder; 304. Buffer tray; 305. Floating joint; 306. Limiting groove; 307. Support protrusion. Detailed Implementation

[0017] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] Currently, most PVD carrier lifting and conveying structures on the market are single-layer designs with relatively limited functionality. These structures can only perform basic carrier lifting and conveying movements, completing simple transfers between different processes. On more complex HJT battery production lines, although some multi-layer carrier lifting and conveying structures exist, each layer lacks independent power control, resulting in poor collaborative operation, and they generally lack integrated carrier buffering functions. In actual production, carriers need to frequently switch between process layer transfers, empty carrier recirculation, and gantry loading / unloading, making it difficult for existing carrier lifting and conveying structures to meet the demands for efficient and precise transfer.

[0019] Specifically, existing carrier plate lifting and transmission structures have the following shortcomings: 1) Low integration: Most existing carrier board lifting and conveying structures are single-function and do not integrate functions such as carrier board buffering. On the production line, it is usually necessary to set up an independent carrier board return lifting structure and carrier board buffering equipment, which not only increases the complexity of the equipment, but also occupies a lot of production space, resulting in an uncompact layout of the entire production line.

[0020] 2) Large footprint: Due to the lack of integrated design, multiple independent devices are needed to perform different functions, significantly increasing the floor space required for the production line. For companies with limited space resources, this undoubtedly increases production costs and management difficulty.

[0021] 3) Low equipment cycle time: Single-layer or multi-layer carrier lifting and conveying structures with poor coordination have slow carrier switching speeds between different processes, which cannot meet the requirements of rapid production. For example, during the process layer carrier transfer and empty carrier return processes in the process equipment, the frequent waiting time reduces the overall working efficiency of the equipment, making it difficult to improve the equipment cycle time.

[0022] 4) Complex control: In existing technologies, each functional module is independent of the others, and the control system needs to control multiple devices separately, which increases the complexity and difficulty of control. Once a fault occurs in any link, the time cost of troubleshooting and repairing the problem is high, which seriously affects the normal operation of the production line.

[0023] 5) Inconvenient maintenance: The carrier board transmission system consists of numerous independent devices, and its maintenance involves multiple components and equipment. The maintenance requirements and cycles of different devices vary, which brings great inconvenience to daily maintenance work and increases maintenance costs and downtime.

[0024] 6) High cost: From the perspective of equipment procurement costs, multiple independent devices need to be purchased; from the perspective of operating costs, the large footprint leads to increased site rental costs, the low equipment cycle time reduces output per unit time, and the complexity of control and inconvenience of maintenance leads to increased labor and maintenance costs. Overall, the total cost of existing technologies remains high.

[0025] The double-layer carrier plate lifting and conveying device, loading equipment and unloading equipment provided by this utility model are intended to solve the above-mentioned problems existing in the existing carrier plate lifting and conveying structure.

[0026] Please refer to the following: Figures 1 to 5 The double-layer carrier plate lifting and transmission device 100 provided by this utility model mainly consists of a double-layer carrier plate transmission mechanism and a double-layer carrier plate lifting mechanism.

[0027] The double-layer carrier plate transfer mechanism includes a first-layer transfer component 11 and a second-layer transfer component 12 arranged at intervals along the Z-axis direction. The first-layer transfer component 11 is located on the lower layer, while the second-layer transfer component 12 is located on the upper layer. Both the first-layer transfer component 11 and the second-layer transfer component 12 transport the carrier plate 400 along the Y-axis direction.

[0028] The double-layer carrier lifting mechanism includes a mounting assembly 20 and two sets of lifting assemblies 21, both of which are mounted on the mounting assembly 20. One set of lifting assemblies 21 supports the first-layer transmission assembly 11 and drives the first-layer transmission assembly 11 to move along the Z-axis, so that the first-layer transmission assembly 11 can switch between different positions in the Z-axis direction. The other set of lifting assemblies 21 supports the second-layer transmission assembly 12 and drives the second-layer transmission assembly 12 to move along the Z-axis, so that the second-layer transmission assembly 12 can switch between different positions in the Z-axis direction.

[0029] The double-layer carrier plate lifting and transmission device of this utility model is equipped with independent transmission and lifting components for each layer of carrier plate, enabling them to independently complete lifting and transmission actions according to their respective task requirements. By equipping each layer of carrier plate with a separate power system, the speed, position, and other parameters of each layer can be independently adjusted to meet the transmission requirements of different docking scenarios, effectively avoiding mutual interference between multiple layers and thus improving overall operating efficiency. This design allows each layer of carrier plate to operate independently, solving the drawbacks of low working efficiency in traditional single-layer structures and overcoming the problem of poor coordination caused by power sharing in traditional multi-layer structures.

[0030] like Figure 5 and Figure 6As shown, the mounting assembly 20 includes two mounting plate components 201 spaced apart along the X-axis. Each mounting plate component 201 is assembled using a splicing method, which effectively saves material and processing costs while ensuring rigidity and precision. In addition, each mounting plate component 201 is equipped with a bellows cover 203 for protection.

[0031] like Figures 5 to 7 As shown, regarding the two sets of lifting components 21, each set of lifting components 21 includes two lifting components 21 respectively installed on two mounting plate components 201. Each lifting component 21 includes a lifting pallet component 211 and a lifting drive component 212. The lifting pallet component 211 is slidably disposed on the mounting plate component 201, and the drive end of the lifting drive component 212 is connected to the lifting pallet component 211.

[0032] In one set of lifting components 21, the length of the lifting pallet component 211 in the Y-axis direction is less than the length of the first-layer transmission component 11 in the Y-axis direction. In practical applications, the length of the first-layer transmission component 11 in the Y-axis direction is approximately the same as the length of the carrier plate 400 in the Y-axis direction. The length of the lifting pallet component 211 can be set to 1 / 3 of the length of the carrier plate 400, which saves costs and ensures the rigidity of the transmission movement of the carrier plate 400.

[0033] Similarly, in the other set of lifting components 21, the length of the lifting pallet component 211 in the Y-axis direction is less than the length of the second-layer transmission component 12 in the Y-axis direction. In practical applications, the length of the second-layer transmission component 12 in the Y-axis direction is approximately the same as the length of the carrier plate 400 in the Y-axis direction. The length of the lifting pallet component 211 can be set to 1 / 3 of the length of the carrier plate 400, which saves costs and ensures the rigidity of the transmission movement of the carrier plate 400.

[0034] In each lifting assembly 21, the lifting pallet component 211 includes a connecting vertical plate 2111 and a supporting horizontal plate 2112 connected to each other. The connecting vertical plate 2111 is slidably disposed on the mounting vertical plate component 201. Both the connecting vertical plate 2111 and the supporting horizontal plate 2112 are provided with multiple weight-reducing holes 2113, and multiple reinforcing ribs 2114 are provided at their connection. It is understood that the connecting vertical plate 2111 and the supporting horizontal plate 2112 can be integrated or detachably connected. In addition, both the connecting vertical plate 2111 and the supporting horizontal plate 2112 can have weight-reducing holes 2113 of various shapes and sizes, and reinforcing ribs 2114 of various shapes and sizes can be provided at their connection. This not only reduces the weight of the lifting pallet component 211, but also ensures that its strength is sufficient to support the layer transmission assembly 11 and the carrier plate 400.

[0035] like Figure 6As shown, in the two sets of lifting assemblies 21, two lifting pallet components 211 mounted on the same mounting plate component 201 are provided with an anti-collision sensor 230 on the side of one lifting pallet component 211 facing the other lifting pallet component 211. Of course, in other optional embodiments, each lifting pallet component 211 can be provided with an anti-collision sensor 230. By providing the anti-collision sensor 230, an anti-collision protection function can be achieved during actual movement.

[0036] like Figure 6 As shown, in the two sets of lifting assemblies 21, two lifting drive components 212 are installed on the same mounting plate component 201, spaced apart along the Y-axis, with their drive ends facing opposite directions. Both lifting drive components 212 are driven by a motor-screw drive or a motor-synchronous belt drive. In this configuration, a high-precision servo motor is selected as the power source, combined with a precision transmission mechanism (such as a ball screw or synchronous belt) to ensure the accuracy and stability of the lifting and transmission of the carrier plate. Moreover, the two lifting drive components 212 are arranged approximately symmetrically, with their motors facing upwards and downwards respectively, resulting in a more rational spatial layout, a more compact structure, and no interference between them.

[0037] like Figure 5 and Figure 6 As shown, in each set of lifting components 21, two lifting components 21 are installed face to face, and the two motors of the two lifting drive components 212 are connected by a matching one-to-two driver, which is divided into a main shaft and a driven shaft to achieve synchronous movement.

[0038] This design allows the two sets of lifting components 21 to support the two layers of transmission components respectively, driving the two layers of transmission components to move independently along the Z-axis in their respective areas without interfering with each other, thereby realizing the independent movement of the double-layer carrier plate.

[0039] It is understood that the aforementioned double-layer carrier lifting and conveying device 100 is applicable not only to the loading device 200, but also to the unloading device 300. The loading device 200 and the unloading device 300 will be described in detail below.

[0040] Please refer to the following: Figure 1 , Figure 2 The feeding equipment 200 provided by this utility model includes a feeding frame 210 and a double-layer plate lifting and conveying device 100, which is disposed on the feeding frame 210. The structure of the double-layer plate lifting and conveying device 100 has been described in detail above and will not be repeated here.

[0041] In the double-layer carrier plate lifting and conveying device 100, when the first layer conveying component 11 switches to the first position in the Z-axis direction, it is used to dock with the carrier plate bottom return position 502 of the process equipment to receive the empty carrier plate 400; when the first layer conveying component 11 switches to the second position in the Z-axis direction, it is used to dock with the carrier plate loading position 503 of the loading gantry mechanism to convey the empty carrier plate 400; when the second layer conveying component 12 switches to the second position in the Z-axis direction, it is used to dock with the carrier plate loading position 503 of the loading gantry mechanism to receive the fully loaded carrier plate 400; when the second layer conveying component 12 switches to the third position in the Z-axis direction, it is used to dock with the carrier plate process position 501 of the process equipment to convey the fully loaded carrier plate 400.

[0042] like Figure 2 As shown, firstly, the unloaded carrier plate 400 flows back from the bottom of the process equipment to the first-layer transfer assembly 11 (located in the lower layer), and then moves into the loading gantry mechanism. In the loading gantry mechanism, after the unloaded carrier plate 400 is filled with silicon wafers, the fully loaded carrier plate 400 is sent into the process equipment through the second-layer transfer assembly 12 (located in the upper layer), and finally undergoes the corresponding process processing in the process equipment.

[0043] The double-layer carrier plate transfer mechanism of this invention equips each of the double-layer carrier plates 400 with an independent power system, enabling each layer to independently and efficiently complete different functions. Based on this, the first-layer transfer component 11 is responsible for connecting the carrier plate bottom return position 502 of the process equipment and the carrier plate loading position 503 of the loading gantry mechanism, while the second-layer transfer component 12 is responsible for connecting the carrier plate loading position 503 of the loading gantry mechanism and the carrier plate process position 501 of the process equipment. This clear division of labor enables parallel processing of different transfer tasks, effectively reducing the waiting time of the carrier plate 400 during the transfer process and laying a solid foundation for improving equipment cycle time.

[0044] Furthermore, this design improves integration, eliminates the need for an external carrier plate return lifting structure, and significantly reduces the footprint of the entire production line. Independent power control and integrated design not only improve the overall equipment cycle time but also simplify control, make the structure more compact, and facilitate maintenance, ultimately reducing production costs and enhancing the overall performance and competitiveness of the HJT battery production line.

[0045] It is understandable that this utility model adopts a layered functional precision docking design, clearly defining the functional division of the two-layer structure to achieve precise docking with different equipment. The transmission track and positioning mechanism of one layer (i.e., the first-layer transmission component 11) are specially designed to match the empty plate return channel of the process equipment, ensuring a smooth transition and accurate positioning of the carrier plate 400 during transmission, thus guaranteeing process continuity. The other layer (i.e., the second-layer transmission component 12) is designed with a suitable carrier plate gripping and placement mechanism tailored to the characteristics of gantry loading, while maintaining compatibility with the process layer carrier plate transmission interface of the process equipment, enabling rapid handover of the carrier plate 400.

[0046] The first-layer transmission component 11 and the second-layer transmission component 12 share the same conveying drive principle. The following will use a single-layer transmission component as an example to explain its conveying drive structure in detail. Both the first-layer transmission component 11 and the second-layer transmission component 12 employ the following conveying drive structure.

[0047] like Figure 8 and Figure 10 As shown, each layer of the transmission component includes a transmission drive structure consisting of a transmission frame 101, a set of transmission components, and a set of transmission power components 102.

[0048] One set of transmission components consists of two transmission components, which are respectively installed on both sides of the transmission frame 101 in the X-axis direction and are arranged symmetrically. Each transmission component includes multiple conveyor wheel units 104 arranged at intervals along the Y-axis direction, and multiple transmission belts 103 connecting adjacent conveyor wheel units 104. Each conveyor wheel unit 104 mainly consists of the following components: an intermediate shaft 1041, a rigid wheel 1042 sleeved on one end of the intermediate shaft 1041 for contacting the carrier plate 400, a synchronous pulley 1043 sleeved on the other end of the intermediate shaft 1041 for connecting the transmission belts 103, a bushing 1044 located between the rigid wheel 1042 and the synchronous pulley 1043 and sleeved on the outside of the intermediate shaft 1041, and a bearing seat 1045 sleeved on the outside of the bushing 1044. In addition, the synchronous pulley 1043 is provided with a detachable end cover 1046, and a retaining ring 1047 is provided on the end cover 1046. A rubber ring 1048 is installed on the outer side of the rigid wheel 1042. The rubber ring 1048 plays a buffering role, which makes the carrier plate 400 more stable during transmission, reduces vibration, and almost completely eliminates the metallic collision sound.

[0049] One set of transmission power components 102 consists of two transmission power components 102, which are arranged symmetrically and spaced apart along the X-axis. Each of the two transmission power components 102 is fixedly connected to one of the conveyor wheel units 104 in the two transmission components. Each transmission power component 102 is driven by a motor. The two motors in one set of transmission power components 102 are matched with a one-to-two driver, acting as a master shaft and a slave shaft, to achieve synchronous movement. This design effectively reduces the overall thickness of each layer of transmission components in the Z-axis direction, thus providing more space for their movement and helping to prevent interference between the two layers of transmission components during operation.

[0050] The unloading device 300 and the loading device 200 are largely similar in structure. The main difference is that the unloading device 300 has an additional carrier board buffer structure.

[0051] Please refer to the following: Figure 3 , Figure 4 The unloading equipment 300 provided by this utility model includes an unloading frame 310 and a double-layer carrier plate lifting and conveying device 100, which is disposed on the unloading frame 310. The structure of the double-layer carrier plate lifting and conveying device 100 has been described in detail above and will not be repeated here.

[0052] In the double-layer carrier plate lifting and conveying device 100, when the second-layer conveying component 12 switches to the third position in the Z-axis direction, it is used to dock with the carrier plate process position 501 of the process equipment to receive the fully loaded carrier plate 400; when the second-layer conveying component 12 switches to the second position in the Z-axis direction, it is used to dock with the carrier plate unloading position 504 of the unloading gantry mechanism to convey the fully loaded carrier plate 400; when the first-layer conveying component 11 switches to the second position in the Z-axis direction, it is used to dock with the carrier plate unloading position 504 of the unloading gantry mechanism to receive the unloaded carrier plate 400; when the first-layer conveying component 11 switches to the first position in the Z-axis direction, it is used to dock with the carrier plate bottom return position 502 of the process equipment to convey the unloaded carrier plate 400.

[0053] like Figure 4 As shown, firstly, the fully loaded carrier plate 400, having completed the process, moves through the second-layer transfer assembly 12 (located on the upper layer) into the unloading gantry mechanism. After the unloading gantry mechanism removes the silicon wafers from the carrier plate 400, an empty carrier plate 400 is left. Subsequently, the empty carrier plate 400 flows through the first-layer transfer assembly 11 (located on the lower layer) to the bottom of the process equipment for reflow.

[0054] The double-layer carrier plate transfer mechanism of this invention equips each of the double-layer carrier plates 400 with an independent power system, enabling each layer to independently and efficiently complete different functions. Based on this, the first-layer transfer component 11 is responsible for connecting the carrier plate bottom return position 502 of the process equipment and the carrier plate unloading position 504 of the unloading gantry mechanism, while the second-layer transfer component 12 is responsible for connecting the carrier plate unloading position 504 of the unloading gantry mechanism and the carrier plate process position 501 of the process equipment. This clear division of labor enables parallel processing of different transfer tasks, effectively reducing the waiting time during the transfer of the carrier plates 400 and laying a solid foundation for improving equipment cycle time.

[0055] Furthermore, this design improves integration, eliminates the need for an external carrier plate return lifting structure, and significantly reduces the footprint of the entire production line. Independent power control and integrated design not only improve the overall equipment cycle time but also simplify control, make the structure more compact, and facilitate maintenance, ultimately reducing production costs and enhancing the overall performance and competitiveness of the HJT battery production line.

[0056] It is understandable that this utility model adopts a layered functional precision docking design, clearly defining the functional division of the two-layer structure to achieve precise docking with different equipment. The transmission track and positioning mechanism of one layer (i.e., the second-layer transmission component 12) are specially designed to match the process layer carrier plate transmission interface of the process equipment, ensuring a smooth transition and accurate positioning of the carrier plate 400 during transmission, thus guaranteeing process continuity. The other layer (i.e., the first-layer transmission component 11) is designed with a suitable carrier plate gripping and placement mechanism to suit the characteristics of gantry unloading, while maintaining compatibility with the empty carrier plate return channel of the process equipment, enabling rapid handover of the carrier plate 400.

[0057] The first-layer transmission component 11 and the second-layer transmission component 12 share the same conveying drive principle. The following will use a single-layer transmission component as an example to explain its conveying drive structure in detail. Both the first-layer transmission component 11 and the second-layer transmission component 12 employ the following conveying drive structure.

[0058] like Figures 8 to 10 As shown, each layer of the transmission component includes a transmission drive structure consisting of a transmission frame 101, a set of transmission components, and a set of transmission power components 102.

[0059] One set of transmission components consists of two transmission components, which are respectively installed on both sides of the transmission frame 101 in the X-axis direction and are arranged symmetrically. Each transmission component includes multiple conveyor wheel units 104 arranged at intervals along the Y-axis direction, and multiple transmission belts 103 connecting adjacent conveyor wheel units 104. Each conveyor wheel unit 104 mainly consists of the following components: an intermediate shaft 1041, a rigid wheel 1042 sleeved on one end of the intermediate shaft 1041 for contacting the carrier plate 400, a synchronous pulley 1043 sleeved on the other end of the intermediate shaft 1041 for connecting the transmission belts 103, a bushing 1044 located between the rigid wheel 1042 and the synchronous pulley 1043 and sleeved on the outside of the intermediate shaft 1041, and a bearing seat 1045 sleeved on the outside of the bushing 1044. In addition, the synchronous pulley 1043 is provided with a detachable end cover 1046, and a retaining ring 1047 is provided on the end cover 1046. A rubber ring 1048 is installed on the outer side of the rigid wheel 1042. The rubber ring 1048 plays a buffering role, which makes the carrier plate 400 more stable during transmission, reduces vibration, and almost completely eliminates the metallic collision sound.

[0060] One set of transmission power components 102 consists of two transmission power components 102, which are arranged symmetrically and spaced apart along the X-axis. Each of the two transmission power components 102 is fixedly connected to one of the conveyor wheel units 104 in the two transmission components. Each transmission power component 102 is driven by a motor. The two motors in one set of transmission power components 102 are matched with a one-to-two driver, acting as a master shaft and a slave shaft, to achieve synchronous movement. This design effectively reduces the overall thickness of each layer of transmission components in the Z-axis direction, thus providing more space for their movement and helping to prevent interference between the two layers of transmission components during operation.

[0061] like Figure 9 , Figure 11 and Figure 12 As shown, the second-layer transmission assembly 12 is equipped with multiple lifting cylinder components 105, while the first-layer transmission assembly 11 is not equipped with lifting cylinder components 105. It is understood that the number of lifting cylinder components 105 can be flexibly set according to actual needs. For example, in the second-layer transmission assembly 12, the transmission frame 101 has two lifting cylinder components 105 on each side of the X-axis direction, with a large interval between them, for a total of four lifting cylinder components 105. Each lifting cylinder component 105 mainly consists of a mounting base plate 1051 mounted on the transmission frame 101, a lifting cylinder 1052 mounted on the mounting base plate 1051, and a carrier plate limiting block 1053 mounted on the telescopic end of the lifting cylinder 1052. Through the synchronous operation of these four lifting cylinder components 105, the carrier plate 400 is lifted and disengaged from all the rigid wheels 1042 in the two transmission components, while the carrier plate 400 is limited to the left and right to prevent excessive displacement.

[0062] The unloading device 300 also includes a carrier plate buffer structure, which is set in the unloading frame 310 and is used to buffer the carrier plate 400 when the lifting cylinder component 105 lifts it. When the process equipment needs to unload the carrier plate 400, the carrier plate 400 in the process equipment works in coordination with the carrier plate buffer structure through the second-layer transfer component 12 in the unloading frame 310 to realize the function of buffering the carrier plate 400.

[0063] like Figure 3 , Figure 11 , Figures 13 to 17 As shown, the carrier plate buffer structure consists of multiple buffer components 30, and the number of buffer components 30 can be flexibly set according to actual needs. For example, the carrier plate buffer structure includes five sets of buffer components 30 arranged at intervals along the Z-axis direction, and each set of buffer components 30 includes four buffer components 30 located on both sides of the mounting component 20 along the Y-axis direction. Each buffer component 30 includes a mounting base 301 mounted on the unloading frame 310, a slide rail 302 and a buffer cylinder 303 respectively mounted on the mounting base 301, and a buffer support plate 304 slidably disposed on the slide rail 302. The telescopic end of the buffer cylinder 303 is connected to the buffer support plate 304 through a floating joint 305. The buffer support plate 304 is used to support the carrier plate 400 when the telescopic end of the buffer cylinder 303 is extended, thereby causing the carrier plate 400. In addition, the side of the buffer support plate 304 is provided with a vertical plate to enhance the overall rigidity, improve the stress performance, and reduce the amount of deformation.

[0064] Since there are multiple sets of buffer components 30, the second-layer transmission component 12 must first be raised to a position to dock with one of the sets of buffer components 30, and then this set of buffer components 30 buffers the carrier plate 400. During the buffering process of the carrier plate 400, each pair of oppositely arranged buffer components 30 in this set of buffer components supports half the span of the carrier plate 400, which is more stable and the deformation of the carrier plate 400 is relatively small. In addition, in each pair of oppositely arranged buffer components 30, one buffer support plate 304 is provided with a limiting groove 306 to limit the U-shaped fold 410 on one side of the carrier plate 400; while the other buffer support plate 304 is provided with a supporting protrusion 307 to support the L-shaped fold 420 on the other side of the carrier plate 400. It can be understood that the U-shaped fold 410 and L-shaped fold 420 on both sides of the carrier plate 400 are both roller surfaces that contact the steel wheel. The limiting groove 306 of the buffer tray 304 can precisely accommodate the folded edge of the roller surface of the carrier plate 400, thus playing a limiting role. Meanwhile, the supporting protrusion 307 of the buffer tray 304 contacts the roller surface of the carrier plate 400, which can increase the friction and effectively reduce the risk of relative slippage of the carrier plate 400.

[0065] In addition, an automatic conveying mechanism can be configured for the carrier plate buffer structure, which can automatically feed the carrier plate 400 into or out of the buffer area according to the rhythm of the preceding and following processes, playing a buffering and adjustment role, avoiding production stagnation caused by the mismatch of the speeds of the preceding and following processes, and further improving the equipment cycle time.

[0066] In terms of structural design, the unloading equipment 300 adopts a double-layer carrier plate lifting and transmission device 100, with each layer equipped with an independent power system. Regarding functional integration, the carrier plate buffering structure is integrated into the second-layer transmission component 12, which is responsible for connecting the gantry unloading and the process layer carrier plate transmission of the process equipment. In traditional structures, carrier plate 400 buffering requires separate equipment, but this invention, through integrated design, allows the carrier plate 400 to directly complete the buffering operation at this layer during transmission, eliminating the need for additional buffering equipment. Simultaneously, since the first-layer transmission component 11 is responsible for connecting the empty carrier plate return flow, the separate outer carrier plate return lifting structure is eliminated, further simplifying the equipment composition of the production line and improving overall integration. This "double-layer independent power + functional integration" design fundamentally solves the problems of dispersed equipment and single function in existing technologies. By optimizing the structural layout and functional allocation, it achieves the goals of reduced footprint, increased equipment cycle time, simplified control, convenient maintenance, and reduced costs.

[0067] Therefore, in response to the problems of low integration, large footprint, and slow cycle time of existing plate-type PVD transmission components, this utility model innovatively constructs a unique double-layer carrier plate lifting and transmission device, loading equipment, and unloading equipment from two dimensions: structural design and functional integration, and has the following significant advantages: 1. Dual-layer independent power control system: Each layer is equipped with an independent power source and control system, enabling it to independently complete lifting and transmission actions according to its respective task requirements. The power source can use a high-precision servo motor, combined with a precision transmission mechanism (such as a ball screw, synchronous belt, etc.), to ensure the accuracy and stability of carrier lifting and transmission. The independent control system allows for individual adjustment of parameters such as speed and position for each layer, meeting the transmission needs of different docking scenarios, avoiding mutual interference between multiple layers, and improving overall operating efficiency.

[0068] 2. Layered Functional Design for Precise Interoperability: The dual-layer structure clearly defines functional divisions, enabling precise interoperability with different equipment. One layer features a specially designed transport track and positioning mechanism that matches the process layer carrier plate transport interface or empty carrier plate return channel of the process equipment, ensuring smooth transition and accurate positioning of the carrier plate during transport and guaranteeing process continuity. The other layer, tailored to the characteristics of gantry loading and unloading, features a suitable carrier plate gripping and placement mechanism, while maintaining compatibility with the empty carrier plate return channel or process layer carrier plate transport interface of the process equipment, enabling rapid carrier plate handover.

[0069] 3. Integrated Carrier Plate Buffer Structure: A carrier plate buffer structure is integrated into the layer connecting the gantry unloading and the process layer of the equipment. This multi-layered design allows for the storage of a certain number of carrier plates according to production needs. Equipped with an automatic conveying mechanism, the carrier plate buffer structure automatically feeds or removes carrier plates into or out of the buffer area based on the rhythm of the preceding and following processes, acting as a buffer and adjusting mechanism to avoid production stoppages caused by speed mismatches between preceding and following processes, further improving equipment cycle time. Simultaneously, the integrated design of the carrier plate buffer structure does not occupy additional external space, making the overall structure more compact.

[0070] 4. Compact Structural Layout: By optimizing the spatial layout of the double-layer structure, a tight vertical arrangement is achieved, reducing the overall footprint of the equipment. Each functional component (such as the power system, carrier board transmission mechanism, carrier board buffer structure, etc.) adopts a modular design, minimizing component size and installation space while ensuring functionality, and ensuring a rational layout of each component for easy maintenance, operation, and troubleshooting.

[0071] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-layer carrier plate lifting and conveying device, characterized in that, include: The double-layer carrier plate transfer mechanism includes a first-layer transfer component (11) and a second-layer transfer component (12) arranged at intervals along the Z-axis direction. Both the first-layer transfer component (11) and the second-layer transfer component (12) transport the carrier plate (400) along the Y-axis direction. The double-layer carrier lifting mechanism includes a mounting assembly (20) and two sets of lifting assemblies (21), both sets of lifting assemblies (21) being mounted on the mounting assembly (20); one set of lifting assemblies (21) supports the first layer transmission assembly (11) and drives the first layer transmission assembly (11) to move along the Z-axis direction, so that the first layer transmission assembly (11) can switch between different positions in the Z-axis direction; the other set of lifting assemblies (21) supports the second layer transmission assembly (12) and drives the second layer transmission assembly (12) to move along the Z-axis direction, so that the second layer transmission assembly (12) can switch between different positions in the Z-axis direction.

2. The double-layer carrier plate lifting and conveying device as described in claim 1, characterized in that, The mounting assembly (20) includes two mounting plate components (201) spaced apart along the X-axis; each set of lifting assemblies (21) includes two lifting assemblies (21) respectively mounted on the two mounting plate components (201), the lifting assembly (21) includes a lifting pallet component (211) and a lifting drive component (212), the lifting pallet component (211) is slidably disposed on the mounting plate component (201), the lifting drive component (212) is mounted on the mounting plate component (201), and the drive end of the lifting drive component (212) is connected to the lifting pallet component (211).

3. The double-layer carrier plate lifting and conveying device as described in claim 2, characterized in that, In at least one set of the lifting assemblies (21), the lifting pallet component (211) is provided with an anti-collision sensor (230).

4. The double-layer carrier plate lifting and conveying device as described in claim 2, characterized in that, In the two sets of lifting assemblies (21), the two lifting drive components (212) installed on the same mounting plate component (201) are arranged at intervals along the Y-axis direction, and the drive ends of the two are facing opposite directions.

5. The double-layer carrier plate lifting and conveying device as described in claim 2, characterized in that, In one set of the lifting assemblies (21), the length of the lifting pallet component (211) in the Y-axis direction is less than the length of the first layer transmission component (11) in the Y-axis direction; and / or, in another set of the lifting assemblies (21), the length of the lifting pallet component (211) in the Y-axis direction is less than the length of the second layer transmission component (12) in the Y-axis direction.

6. The double-layer carrier plate lifting and conveying device as described in claim 2, characterized in that, The lifting pallet component (211) includes a connecting vertical plate (2111) and a supporting horizontal plate (2112) connected to each other. The connecting vertical plate (2111) is slidably disposed on the mounting vertical plate component (201). Both the connecting vertical plate (2111) and the supporting horizontal plate (2112) are provided with multiple weight-reducing holes (2113), and the connection between the two is provided with reinforcing ribs (2114).

7. A feeding device, characterized in that, Includes a loading frame (210) and a double-layer carrier plate lifting and conveying device (100) as described in any one of claims 1-6, wherein the double-layer carrier plate lifting and conveying device (100) is disposed on the loading frame (210); when the first layer conveying component (11) is switched to a first position in the Z-axis direction, it is used to dock with the carrier plate bottom return position (502) of the process equipment to receive an empty carrier plate (400); when the first layer conveying component (11) is switched to a second position in the Z-axis direction, it is used to dock with... The loading gantry mechanism docks with the loading position (503) of the loading plate to convey an empty loading plate (400); when the second layer transmission component (12) switches to the second position in the Z-axis direction, it docks with the loading position (503) of the loading gantry mechanism to receive a fully loaded loading plate (400); when the second layer transmission component (12) switches to the third position in the Z-axis direction, it docks with the loading position (501) of the process equipment to convey a fully loaded loading plate (400).

8. A feeding device, characterized in that, Includes a feeding frame (310) and a double-layer carrier lifting and conveying device (100) as described in any one of claims 1-6, wherein the double-layer carrier lifting and conveying device (100) is disposed on the feeding frame (310); when the second layer conveying component (12) switches to the third position in the Z-axis direction, it is used to dock with the carrier process position (501) of the process equipment to receive the fully loaded carrier (400); when the second layer conveying component (12) switches to the second position in the Z-axis direction, it is used to dock with the lower The material gantry mechanism docks with the unloading position (504) of the unloading gantry mechanism to convey a fully loaded material plate (400); when the first layer transmission component (11) switches to the second position in the Z-axis direction, it docks with the unloading position (504) of the unloading gantry mechanism to receive an empty material plate (400); when the first layer transmission component (11) switches to the first position in the Z-axis direction, it docks with the bottom return position (502) of the process equipment to convey an empty material plate (400).

9. The feeding device as described in claim 8, characterized in that, The second-layer transmission component (12) is provided with a plurality of lifting cylinder components (105), which are used to lift the carrier plate (400) to separate the carrier plate (400) from the second-layer transmission component (12); the unloading device (300) also includes a carrier plate buffer structure, which is disposed on the unloading frame (310) and is used to buffer the carrier plate (400) when the lifting cylinder component (105) lifts the carrier plate (400).

10. The feeding device as described in claim 9, characterized in that, The carrier plate buffer structure includes multiple buffer components (30) located on both sides of the mounting assembly (20) along the Y-axis direction. Each buffer component (30) includes a mounting base (301) mounted on the unloading frame (310), a slide rail (302) and a buffer cylinder (303) respectively mounted on the mounting base (301), and a buffer tray (304) slidably disposed on the slide rail (302). The telescopic end of the buffer cylinder (303) is connected to the buffer tray (304) through a floating joint (305). The buffer tray (304) is used to support the carrier plate (400) when the telescopic end of the buffer cylinder (303) is extended.

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